阅读说明：本技术 一种复合保温管连续生产装置 (Continuous production device for composite heat-insulating pipe ) 是由 果风松 杨文波 沈长根 于 2021-07-22 设计创作，主要内容包括：本发明提供了一种复合保温管连续生产装置,包括上料机构,输送机构设置在上料机构右侧,导入成形机构设置在输送机构右侧,支架安装机构位于导入成形机构前侧上表面,温度预处理机构设置在导入成形机构上,熟化定型机构设置在导入成形机构右侧,焊接成型机构设置在导入成形机构靠近熟化定型机构一端,灌注机构设置在导入成形机构前侧,灌注机构上设置有控制机构。本发明中,工作管及外护材料本体通过导入成形机构时,能够利用灌注机构向工作管与外护材料本体之间的空间内注入发泡剂,与传统保温管生产方式不同,不需要采用人工安装支架或利用发泡平台对工作管及外保护管定心,实现了复合保温管的连续生产,大大提高了生产效率,降低了生产成本。(The invention provides a continuous production device for composite heat-insulating pipes, which comprises a feeding mechanism, wherein a conveying mechanism is arranged on the right side of the feeding mechanism, a leading-in forming mechanism is arranged on the right side of the conveying mechanism, a support mounting mechanism is positioned on the upper surface of the front side of the leading-in forming mechanism, a temperature pretreatment mechanism is arranged on the leading-in forming mechanism, a curing and shaping mechanism is arranged on the right side of the leading-in forming mechanism, a welding and shaping mechanism is arranged at one end, close to the curing and shaping mechanism, of the leading-in forming mechanism, a pouring mechanism is arranged on the front side of the leading-in forming mechanism, and a control mechanism is arranged on the pouring mechanism. According to the invention, when the working pipe and the outer protection material body pass through the leading-in forming mechanism, the foaming agent can be injected into the space between the working pipe and the outer protection material body by using the filling mechanism, and different from the production mode of the traditional heat preservation pipe, the working pipe and the outer protection pipe are not required to be centered by adopting a manual mounting bracket or a foaming platform, so that the continuous production of the composite heat preservation pipe is realized, the production efficiency is greatly improved, and the production cost is reduced.)

1. The utility model provides a compound incubation pipe continuous production device which characterized in that includes: feed mechanism (1), conveying mechanism (2), leading-in forming mechanism (3), support installation mechanism (4), temperature pretreatment mechanism (5), welding forming mechanism (6), perfusion mechanism (7), curing forming mechanism (8), pipe cutting mechanism (9), offline mechanism (10) and control mechanism (11), conveying mechanism (2) sets up feed mechanism (1) right side, leading-in forming mechanism (3) sets up conveying mechanism (2) right side, support installation mechanism (4) is located leading-in forming mechanism (3) front side upper surface, temperature pretreatment mechanism (5) sets up on leading-in forming mechanism (3), curing forming mechanism (8) sets up leading-in forming mechanism (3) right side, welding forming mechanism (6) sets up leading-in forming mechanism (3) is close to curing forming mechanism (8) one end, cut a tub mechanism (9) and set up curing forming mechanism (8) right side, mechanism (10) of inserting the production line is in cut a tub mechanism (9) right side, perfusion mechanism (7) set up leading-in forming mechanism (3) front side, be provided with control mechanism (11) on perfusion mechanism (7).

2. The continuous production device of composite insulating pipes according to claim 1, characterized in that the feeding mechanism (1) comprises:

a first support frame (101);

the conveying roller wheel (102) is arranged on the first support frame (101), a plurality of working pipes (103) are arranged on the conveying roller wheel (102), and two adjacent working pipes (103) are connected in a plugging connection mode or an adhesive tape connection mode;

outer protective material rolls up support (104), outer protective material rolls up support (104) and sets up first support frame (101) right side, outer protective material rolls up support (104) and is provided with a plurality of, all be provided with outer protective material body (105) on outer protective material rolls up support (104), outer protective material body (105) are located work pipe (103) below, one of them the end of outer protective material body (105) is adjacent with the right side the head end of outer protective material body (105) is connected.

3. A continuous production plant of composite insulating pipes according to claim 2, characterized in that said conveying means (2) comprise:

the mounting bracket (201), the mounting bracket (201) is formed by combining a plurality of connecting rods, and four strip holes (202) are formed in the upper surface of the mounting bracket (201);

the conveying box body (203) is arranged inside the mounting support (201), box body adjusting screws (204) are arranged at four corners of the upper surface of the conveying box body (203), one end of each box body adjusting screw (204) is fixedly connected with the upper surface of the conveying box body (203), the other end of each box body adjusting screw (204) extends into the strip hole (202) and slides along the inner wall of the strip hole (202), a nut is arranged at the upper end of each box body adjusting screw (204) and is in threaded connection with the upper end of each box body adjusting screw (204), a gap is formed between the lower surface of the conveying box body (203) and the mounting support (201), and the outer protective material body (105) penetrates through the gap and extends to one side, away from the feeding mechanism (1), of the conveying box body (203);

the speed reducer (205) is arranged on one side of the conveying box body (203), and one end of the speed reducer (205) is fixedly connected with the side wall of the conveying box body (203);

the motor (206), the motor (206) is arranged on the upper surface of the speed reducer (205), and the motor (206) is in transmission connection with the speed reducer (205);

the transmission wheel assembly (207) is arranged on the upper surface of the conveying box body (203), and the transmission wheel assembly (207) is in transmission connection with the speed reducer (205);

the first wheel shaft (208) is arranged on one side inside the conveying box body (203), one end of the first wheel shaft (208) is rotatably connected with the bottom wall of the conveying box body (203), the other end of the first wheel shaft (208) penetrates through the upper surface of the conveying box body (203) and is in transmission connection with the transmission wheel assembly (207), the first wheel shaft (208) is rotatably connected with the upper surface of the conveying box body (203), and a first conveying wheel (209) is arranged on the first wheel shaft (208);

the second wheel shaft (210) is arranged on one side, far away from the first wheel shaft (208), of the interior of the conveying box body (203), a second conveying wheel (211) is arranged on the second wheel shaft (210), the second conveying wheel (211) and the first conveying wheel (209) are located at the same height, the working pipe (103) is located between the first conveying wheel (209) and the second conveying wheel (211), the outer wall of the working pipe (103) is respectively in contact with the outer wall of the first conveying wheel (209) and the outer wall of the second conveying wheel (211), the second conveying wheel (211) is connected with a distance adjusting mechanism, and the distance adjusting mechanism comprises: a first sliding groove (212), a second sliding groove (213), a lower sliding block (214), an upper sliding block (215), a fixed block (216) and a first screw (217), wherein the first sliding groove (212) is arranged on the lower side wall of the conveying box body (203), the second sliding groove (213) is arranged on the upper side wall of the conveying box body (203), the lower sliding block (214) is arranged in the first sliding groove (212) and is in sliding connection with the first sliding groove (212), the upper sliding block (215) is arranged in the second sliding groove (213) and is in sliding connection with the second sliding groove (213), the upper end and the lower end of the second wheel shaft (210) are respectively in rotating connection with the upper sliding block (215) and the lower sliding block (214), the fixed block (216) is arranged on the upper surface of the conveying box body (203), one end of the first screw (217) is in rotating connection with the side wall of the upper sliding block (215), the other end of the first screw rod (217) is in threaded connection with the fixed block (216).

4. A continuous production plant of composite insulating pipes according to claim 3, characterized in that said introduction forming means (3) comprise:

the second supporting frame (301), the second supporting frame (301) is positioned at the right side of the conveying mechanism (2);

an introducing component (302), wherein the introducing component (302) is arranged on the upper surface of the second supporting frame (301), the introducing component (302) comprises a first guide wheel component, a second guide wheel component, a third guide wheel component and a fourth guide wheel component, the second guide wheel component is arranged on the right side of the first guide wheel component, the third guide wheel component is arranged on the right side of the second guide wheel component, the fourth guide wheel component is arranged on the right side of the third guide wheel component, the first guide wheel component comprises a first roller (303) and a second roller (304) which are horizontally arranged, the first roller (303) is positioned above the second roller (304), the upper surface of the first roller (303) is in contact with the lower surface of the working pipe (103), the upper surface of the second roller (304) is in contact with the lower surface of the outer protective material body (105), the second guide wheel component comprises two third rollers (305) which are symmetrically arranged, the two third rollers (305) are arranged in a V shape, the included angle between the two third rollers (305) is adjustable, the third guide wheel assembly comprises a fourth roller (306) and two fifth rollers (307), the fourth roller (306) is horizontally arranged, the two fifth rollers (307) are vertically arranged, the two fifth rollers (307) are centrosymmetric about the fourth roller (306), the fourth guide wheel assembly comprises three sixth rollers (308), the three sixth rollers (308) are arranged in a triangular shape, and one sixth roller (308) is horizontally arranged;

the forming assembly is arranged on the upper surface of the second supporting frame (301), the forming assembly is positioned on the right side of the guiding assembly (302), the forming assembly comprises a screw rod seat (309), limit screws (310), supporting wheel sets (311) and a limit guide wheel (312), the screw rod seat (309) is perpendicular to the working pipe (103), the working pipe (103) penetrates through the center of the screw rod seat (309), multiple groups of limit screws (310) are arranged along the axial direction of the working pipe (103), each group of limit screws (310) are uniformly arranged along the circumferential direction of the working pipe (103), one end, far away from the working pipe (103), of each limit screw (310 is in threaded connection with the screw rod seat (309), the lower end of each supporting wheel set (311) is fixedly connected with the upper surface of the second supporting frame (301), and the supporting wheel sets (311) are arranged on the upper surface of the second supporting frame (301) at equal intervals, the supporting wheel set (311) is provided with a roller, the outer wall of the roller is in contact with the outer protective material body (105), the arc of the outer wall of the roller is matched with the section arc section of the working pipe (103), the limit guide wheels (312) are arranged above the supporting wheel set (311), the limit guide wheels (312) are arranged into two, and the two limit guide wheels (312) are in contact with the two side walls of the outer protective material body (105) respectively.

5. A continuous production plant of composite thermal insulating pipes according to claim 2, characterized in that said temperature pre-treatment means (5) comprise:

the first heating assembly is arranged at the position of the leading-in assembly (302), the first heating assembly comprises a plurality of first heating devices (501), the plurality of first heating devices (501) are arranged at the outer side of the working pipe (103) on the leading-in assembly (302) at intervals, and the first heating devices (501) heat the working pipe (103) and the outer protective material body (105) in a surrounding heating mode or a unidirectional heating mode;

the second heating assembly is arranged at the forming assembly and comprises a high-temperature shield (502), the high-temperature shield (502) is covered on the outer side of the forming assembly, and the high-temperature shield (502) is connected with a second heating device.

6. A continuous production plant of composite insulating pipes according to claim 2, characterized in that said welding and forming means (6) comprise:

the fixing plate (601), the fixing plate (601) is vertically arranged at the right end of the guide-in forming mechanism (3), and a through hole for the working pipe (103) and the outer protective material body (105) to pass through is formed in the center of the fixing plate (601);

the air cylinder (602), the air cylinder (602) is arranged on the right side wall of the fixing plate (601), and the lower end of the air cylinder (602) is provided with a welding pressing wheel (603);

the adjusting seat (604) is arranged on the left side wall of the fixing plate (601), a welding gun (605) is arranged on the adjusting seat (604), and the welding gun (605) is positioned above the side of the welding opening of the outer protective material body (105);

the welding inner support frame (606) is connected with the side wall of the fixing plate (601) through a first connecting arm (607), the welding inner support frame (606) is located below the welding pinch roller (603), and the welding inner support frame (606) is cantilevered into a space between the outer protective material body (105) and the working pipe (103) from an opening of the outer protective material body (105) to the position below the welding gun (605);

the auxiliary welding positioning piece (608) is arranged on the left side of the fixing plate (601) through a second connecting arm (609), guide grooves with angles are formed in two sides of the auxiliary welding positioning piece (608), and edges to be welded of the outer protective material body (105) are led out after entering the guide grooves respectively.

7. The continuous production device of the composite heat-insulating pipe as claimed in claim 4, wherein a heat-insulating layer (701) is arranged between the inner wall of the outer protective material body (105) and the outer wall of the working pipe (103), the heat-insulating layer (701) is manufactured by the pouring mechanism (7), the pouring mechanism (7) comprises a polyurethane foaming machine, the pouring position of the pouring mechanism (7) is any one of an open pouring position (702) or a closed pouring position (703), the open pouring position (702) is located between the fourth guide wheel assembly and the forming assembly, and the closed pouring position (703) is located between the forming assembly and the curing and shaping mechanism (8).

8. A continuous production plant of composite insulating pipes according to claim 7, characterized in that said maturing and sizing means (8) comprise:

a third support frame (801), wherein the third support frame (801) is positioned at the right side of the second support frame (301);

the heating and heat-preserving shield (802) is covered on the upper surface of the third supporting frame (801), a second through hole is formed in the heating and heat-preserving shield (802) along the length direction of the heating and heat-preserving shield (802), an air heater is arranged on the outer side of the heating and heat-preserving shield (802), and the air heater is communicated with the inside of the heating and heat-preserving shield (802) through a connecting pipe;

the shaping assembly (803), the shaping assembly (803) is arranged inside the heating and heat-preserving shield (802), the shaping assembly (803) comprises a first support (804), a mounting plate (805), mounting blocks (806), second screws (807), a connecting block (808) and a rotating wheel (809), the lower end of the first support (804) is fixedly connected with the upper surface of the third support frame (801), the mounting plate (805) is arranged at the upper end of the first support (804), a plurality of mounting blocks (806) are distributed on the side wall array of the mounting plate (805), the second screws (807) are arranged in the mounting blocks (806), the second screws (807) are in threaded connection with the mounting blocks (806), the connecting block (808) is arranged at one end, facing the working pipe (103), of the second screws (807), and the connecting block (808) is in rotary connection with the second screws (807), a rotating wheel (809) is arranged in the connecting block (808), and one side of the rotating wheel (809) facing the working pipe (103) is in contact with the outer wall of the outer protective material body (105).

9. The apparatus for continuously producing composite thermal insulating pipes according to claim 7, wherein the control mechanism comprises:

the frequency converter is arranged on the polyurethane foaming machine and is electrically connected with the motor (206);

a flow rate sensor arranged at the open perfusion position (702) for detecting an actual perfusion rate at the open perfusion position (702);

the first controller is arranged on the polyurethane foaming machine and is respectively and electrically connected with the frequency converter and the flow velocity sensor;

the first controller controls the frequency converter to work based on the detection value of the flow velocity sensor, and comprises the following steps:

step 1: calculating a target frequency of the motor (206) based on the detection value of the flow rate sensor by equation (1):

wherein f is₁Is a target frequency, v, of the motor (206)₁Actual perfusion velocity, v at the open perfusion position (702) detected for the flow rate sensor₂For a preset filling speed, n, at said open filling position (702)₂For a predetermined rotational speed, H, of the first wheel axle (208)₁Is the reduction ratio of the speed reducer (205), P is the preset number of pole pairs, eta, of the rotating magnetic field of the motor (206)₁Is the working efficiency of the motor (206) (. eta.)₂Is the transmission efficiency of the transmission wheel assembly (207);

step 2: based on the calculation result of the formula (1), the first controller controls the frequency converter to work, the frequency converter adjusts the frequency of the motor (206), and the frequency converter adjusts the actual frequency of the motor (206) to the target frequency of the prime number motor (206).

10. The continuous production device of composite heat-insulating pipes according to claim 5, further comprising:

a first pressure sensor arranged on the inner wall of the high temperature shield (502) for detecting the pressure of the inner wall of the high temperature shield (502);

a second pressure sensor arranged on the outer wall of the high-temperature shield (502) and used for detecting the pressure of the outer wall of the high-temperature shield (502);

a temperature sensor disposed on an inner wall of the high temperature shield (502) for detecting a real-time temperature within the high temperature shield (502);

the timer is arranged on the outer side of the first support frame (101), is electrically connected with the temperature sensor and is used for recording the time length for reducing the temperature of the inner wall of the high-temperature shield (502) from a preset highest temperature to a preset lowest temperature;

the alarm is arranged on the outer side wall of the first support frame (101);

the second controller is arranged on the outer side wall of the first support frame (101), and is electrically connected with the first pressure sensor, the second pressure sensor, the temperature sensor, the timer, the second heating device and the alarm respectively;

the second controller controls the alarm to work based on the detection results of the first pressure sensor, the second pressure sensor, the temperature sensor and the timer, and comprises the following steps:

step 11: calculating a natural cooling rate of air inside the high temperature shield (502) by formula (2) based on the detected values of the temperature sensor and the timer:

wherein Q is₁Is the natural cooling rate, C, of the air inside the high temperature shield (502)₁Is the specific heat capacity, p, of the air in the high temperature shield (502)₁Is the density, V, of the air in the high temperature shield (502)₁Is the volume inside the high temperature shield (502), K₂Is a predetermined maximum temperature, K, within the high temperature shield (502)₁Is a predetermined minimum temperature, t, within the high temperature shield (502)₁The length of time taken for the temperature of the inner wall of the high temperature shield (502) recorded by the timer to decrease from a preset maximum temperature to a preset minimum temperature;

step 12: calculating an actual life value of the high temperature shield (502) by formula (3) based on the calculation result of formula (2) and the detection values of the first pressure sensor and the second pressure sensor:

wherein, T₁Is the actual life value of the high temperature shield (502), B₁Presetting the shape factor of cracks, P, on the surface of the high-temperature shield (502)₂Is the first pressurePressure, P, of the inner wall of the hot shield (502) detected by a force sensor₁Pressure, P, of the outer wall of the high temperature shield (502) detected for the second pressure sensor₀A predetermined pressure difference, L, between the inner and outer walls of the high temperature shield (502)₁Is the height, delta, of the high temperature shield (502)₁Is the thickness, L, of the inner wall of the high temperature shield (502)₂Presetting a preset length, Q, of cracks on the surface of the high temperature shield (502)₂For a predetermined natural cooling rate, delta, of the high temperature shield (502)₂Presetting the preset depth of the crack on the surface of the high-temperature shield (502);

step 13: based on the calculation result of formula (3), the second controller will the actual life value of high temperature guard shield (502) with the life value of predetermineeing of high temperature guard shield (502) carries out the comparison, when the actual life value of high temperature guard shield (502) is greater than the life value of predetermineeing of high temperature guard shield (502), the second controller control the alarm sends alarm prompt.

Technical Field

The invention relates to the technical field of composite heat-insulating pipe production, in particular to a continuous production device for composite heat-insulating pipes.

Background

The heat preservation pipe is a short name of a heat insulation pipeline, is used for conveying liquid, gas and other media, and is used for heat preservation in heat insulation engineering of pipelines of petroleum, chemical engineering, aerospace, hot springs, military, central heating, central air conditioning, municipal administration and the like.

The heat preservation pipe is divided into three layers from inside to outside: a first layer: the working steel pipe layer is generally selected from seamless steel pipes, spiral steel pipes and straight seam steel pipes according to the design and the requirements of customers. After the surface of the steel pipe is treated by an advanced shot blasting rust removal process, the rust removal grade of the steel pipe can reach Sa2 grade in GB8923-1988 standard, and the surface roughness can reach 12.5 microns in GB6060.5-88 standard; a second layer: the polyurethane heat-insulating layer is formed by injecting rigid polyurethane foam plastic stock solution into a cavity formed between the steel pipe and the outer protective layer at one time by using a high-pressure foaming machine, namely the polyurethane heat-insulating layer is commonly called pipe-in-pipe foaming; and a third layer: the high-density polyethylene protective layer is prefabricated into a black or yellow polyethylene plastic pipe with a certain wall thickness. The polyurethane heat-insulating layer has the functions of protecting the polyurethane heat-insulating layer from being damaged by mechanical hard objects, and preventing corrosion and water.

The temperature pipe is an important factor influencing energy conservation, and the development and application of the heat preservation pipe are more and more generally paid attention by countries in the world. After the 70 s in the 20 th century, the production and application of the heat preservation pipe are generally regarded as important abroad, and the energy consumption is greatly reduced, so that the environmental pollution and the greenhouse effect are reduced. The foreign insulation industry has a long history, and new insulation materials are emerging continuously. Before 1980, the development of heat preservation pipes in China is very slow, and few heat preservation plants can only produce a small amount of underground directly-buried heat preservation pipes, but the heat preservation industry in China has more than 30 years of effort, particularly has high-speed development in nearly 10 years, so that a large number of products are from endless to diversified, the quality is from low to high, and the application is more and more common. Polyurethane materials are currently the most commonly used insulation materials internationally. The rigid polyurethane has many excellent properties and is widely used in the fields of heat preservation and heat insulation in European and American countries. About 49% of heat insulation materials in developed countries such as Europe and America are polyurethane materials, and the proportion in China is still less than 20%.

At present, in the process of producing the heat preservation pipe, a support is usually installed and fixed on a working pipe, then the outer protection pipe and the working pipe are sleeved together, the support is used for centering the outer protection pipe and the working pipe and then is filled with heat preservation materials, the support is a disposable consumable material (generally installed and used on the working pipe at a distance of 0.5-1 meter) in the production of the heat preservation pipe, the support plays a role in supporting and centering before polyurethane is injected, the polyurethane is foamed after the polyurethane is injected to wrap the heat preservation layer and form a whole with a product, the cost of a single support is low and the cost of the support is not reused, but the cost of the support is huge in mass production; when the large-diameter pipe is produced, the working pipe and the outer protective pipe can be sleeved together and then are arranged in the foaming platform, the outer protective pipe and the working pipe are centered and positioned by the foaming platform, and then the heat insulation material is poured; regardless of the production mode, the production process is complicated, time and labor are wasted, continuous production cannot be carried out, and the production efficiency is low.

Disclosure of Invention

The invention provides a continuous production device for a composite heat-insulating pipe, which is used for solving the problems that in the process of producing the heat-insulating pipe at present, a bracket is usually installed and fixed on a working pipe firstly, then an outer protective pipe and the working pipe are sleeved together, and heat-insulating materials are poured after the outer protective pipe and the working pipe are centered by utilizing the bracket; when the large-diameter pipe is produced, the working pipe and the outer protective pipe can be sleeved together and then are arranged in the foaming platform, the outer protective pipe and the working pipe are centered and positioned by the foaming platform, and then the heat insulation material is poured; no matter which production mode, the production process is complicated, time and labor are wasted, continuous production cannot be carried out, and the production efficiency is low.

In order to solve the technical problem, the invention discloses a continuous production device of a composite heat-insulating pipe, which comprises: feed mechanism, conveying mechanism, leading-in forming mechanism, support mounting mechanism, temperature pretreatment mechanism, welding forming mechanism, perfusion mechanism, curing forming mechanism, pipe cutting mechanism, offline mechanism and control mechanism, conveying mechanism sets up the feed mechanism right side, leading-in forming mechanism sets up the conveying mechanism right side, support mounting mechanism is located leading-in forming mechanism front side upper surface, temperature pretreatment mechanism sets up on leading-in forming mechanism, curing forming mechanism sets up leading-in forming mechanism right side, welding forming mechanism sets up leading-in forming mechanism is close to curing forming mechanism one end, pipe cutting mechanism sets up on curing forming mechanism right side, offline mechanism sets up pipe cutting mechanism right side, perfusion mechanism sets up leading-in forming mechanism front side, and the filling mechanism is provided with a control mechanism.

Preferably, the feeding mechanism includes:

a first support frame;

the conveying roller wheel is arranged on the first support frame, a plurality of working tubes are arranged on the conveying roller wheel, and two adjacent working tubes are connected by at least one of plugging connection or adhesive tape connection;

outer protective material rolls up support, outer protective material rolls up support setting and is in first support frame right side, outer protective material rolls up support and is provided with a plurality of, all be provided with outer protective material body on the outer protective material rolls up the support, outer protective material body is located the working tube below, one of them the tip of outer protective material body is adjacent with the right side the head end of outer protective material body is connected.

Preferably, the conveying mechanism includes:

the mounting bracket is formed by combining a plurality of connecting rods, and four strip holes are formed in the upper surface of the mounting bracket;

the conveying box body is arranged inside the mounting support, box body adjusting screw rods are arranged at four corners of the upper surface of the conveying box body, one end of each box body adjusting screw rod is fixedly connected with the upper surface of the conveying box body, the other end of each box body adjusting screw rod extends into the long strip hole and slides along the inner wall of the long strip hole, a nut is arranged at the upper end of each box body adjusting screw rod and is in threaded connection with the upper end of each box body adjusting screw rod, a gap is formed between the lower surface of the conveying box body and the mounting support, and the outer protective material body penetrates through the gap and extends to one side, away from the feeding mechanism, of the conveying box body;

the speed reducer is arranged on one side of the conveying box body, and one end of the speed reducer is fixedly connected with the side wall of the conveying box body;

the motor is arranged on the upper surface of the speed reducer and is in transmission connection with the speed reducer;

the transmission wheel assembly is arranged on the upper surface of the conveying box body and is in transmission connection with the speed reducer;

the first wheel shaft is arranged on one side in the conveying box body, one end of the first wheel shaft is rotatably connected with the bottom wall of the conveying box body, the other end of the first wheel shaft penetrates through the upper surface of the conveying box body and is in transmission connection with the driving wheel assembly, the first wheel shaft is rotatably connected with the upper surface of the conveying box body, and a first conveying wheel is arranged on the first wheel shaft;

the second wheel shaft is arranged on one side, far away from the first wheel shaft, of the conveying box body, a second conveying wheel is arranged on the second wheel shaft, the second conveying wheel and the first conveying wheel are located at the same height, the working pipe is located between the first conveying wheel and the second conveying wheel, the outer wall of the working pipe is respectively contacted with the outer wall of the first conveying wheel and the outer wall of the second conveying wheel, the second conveying wheel is connected with an interval adjusting mechanism, and the interval adjusting mechanism comprises: the first sliding groove is formed in the lower side wall of the conveying box body, the second sliding groove is formed in the upper side wall of the conveying box body, the lower sliding block is arranged in the first sliding groove and is in sliding connection with the first sliding groove, the upper sliding block is arranged in the second sliding groove and is in sliding connection with the second sliding groove, the upper end and the lower end of a second wheel shaft are respectively in rotating connection with the upper sliding block and the lower sliding block, the fixed block is arranged on the upper surface of the conveying box body, one end of the first screw rod is in rotating connection with the side wall of the upper sliding block, and the other end of the first screw rod is in threaded connection with the fixed block.

Preferably, the introduction molding mechanism includes:

the second support frame is positioned on the right side of the conveying mechanism;

the guide-in assembly is arranged on the upper surface of the second support frame and comprises a first guide wheel assembly, a second guide wheel assembly, a third guide wheel assembly and a fourth guide wheel assembly, the second guide wheel assembly is arranged on the right side of the first guide wheel assembly, the third guide wheel assembly is arranged on the right side of the second guide wheel assembly, the fourth guide wheel assembly is arranged on the right side of the third guide wheel assembly, the first guide wheel assembly comprises a first roller and a second roller which are horizontally arranged, the first roller is positioned above the second roller, the upper surface of the first roller is in contact with the lower surface of the working pipe, the upper surface of the second roller is in contact with the lower surface of the outer protective material body, the second guide wheel assembly comprises two third rollers which are symmetrically arranged, and the two third rollers are arranged in a V shape, the included angle between the two third rollers is adjustable, the third guide wheel assembly comprises a fourth roller and two fifth rollers, the fourth roller is horizontally arranged, the two fifth rollers are vertically arranged, the two fifth rollers are centrosymmetric about the fourth roller, the fourth guide wheel assembly comprises three sixth rollers, the three sixth rollers are arranged in a triangular shape, and one of the sixth rollers is horizontally arranged;

the forming assembly is arranged on the upper surface of the second support frame and is positioned on the right side of the guide-in assembly, the forming assembly comprises a screw seat, limit screws, support wheel sets and a limit guide wheel, the screw seat is perpendicular to the working pipe, the working pipe penetrates through the center of the screw seat, the limit screws are provided with a plurality of groups along the axial direction of the working pipe, each group of limit screws are uniformly arranged along the circumferential direction of the working pipe, one end of each limit screw, far away from the working pipe, is in threaded connection with the screw seat, the lower ends of the support wheel sets are fixedly connected with the upper surface of the second support frame, the support wheel sets are arranged on the upper surface of the second support frame at equal intervals, rollers are arranged at the upper ends of the support wheel sets, the outer walls of the rollers are in contact with the body of the outer protection material, and the arcs of the outer walls of the rollers are matched with the arcs of the sections of the working pipe, the two side limit guide wheels are respectively contacted with two side walls of the outer protective material body.

Preferably, the temperature pretreatment mechanism comprises:

the first heating assembly is arranged at the guiding assembly and comprises a plurality of first heating devices, the first heating devices are arranged at the outer side of a working pipe on the guiding assembly at intervals, and the first heating devices heat the working pipe and the outer protective material body in any one of a surrounding heating mode or a unidirectional heating mode;

the second heating assembly is arranged at the forming assembly and comprises a high-temperature shield, the high-temperature shield is covered on the outer side of the forming assembly, and the high-temperature shield is connected with a second heating device.

Preferably, the welding forming mechanism includes:

the fixed plate is vertically arranged at the right end of the leading-in forming mechanism, and a through hole for the working pipe and the outer protective material body to pass through is formed in the center of the fixed plate;

the air cylinder is arranged on the right side wall of the fixing plate, and a welding pinch roller is arranged at the lower end of the air cylinder;

the adjusting seat is arranged on the left side wall of the fixed plate, and a welding gun is arranged on the adjusting seat and is positioned above the side of the welding opening of the outer protective material body;

the welding inner support frame is connected with the side wall of the fixed plate through a first connecting arm, the welding inner support frame is positioned below the welding pinch roller, and the welding inner support frame is cantilevered into a space between the outer protective material body and the working pipe from an opening of the outer protective material body to a position below the welding gun;

welding auxiliary positioning spare, welding auxiliary positioning spare passes through the second linking arm setting and is in the fixed plate left side, the guide slot of taking the angle is seted up to welding auxiliary positioning spare both sides, the limit of waiting to weld of outer protective material body is followed respectively the guide slot gets into the back and derives.

Preferably, a heat insulation layer is arranged between the inner wall of the outer protective material body and the outer wall of the working pipe, the heat insulation layer is manufactured by the filling mechanism, the filling mechanism comprises a polyurethane foaming machine, the filling position of the filling mechanism is any one of an open filling position or a closed filling position, the open filling position is located between the fourth guide wheel assembly and the forming assembly, and the closed filling position is located between the forming assembly and the curing and shaping mechanism.

Preferably, the curing and shaping mechanism comprises:

the third support frame is positioned on the right side of the second support frame;

the heating and heat-preserving shield is covered on the upper surface of the third support frame, a second through hole is formed in the heating and heat-preserving shield along the length direction of the heating and heat-preserving shield, and an air heater is arranged on the outer side of the heating and heat-preserving shield and communicated with the inside of the heating and heat-preserving shield through a connecting pipe;

the design subassembly, the design subassembly sets up inside the heating heat preservation guard shield, the design subassembly includes first support, mounting panel, installation piece, second screw rod, connecting block and runner, first support lower extreme with third support frame upper surface fixed connection, the mounting panel sets up first support upper end, mounting panel lateral wall array distribution has a plurality of installation pieces, set up the second screw rod in the installation piece, the second screw rod with installation piece threaded connection, the second screw rod orientation work tube one end sets up the connecting block, the connecting block with the second screw rod rotates to be connected, set up the runner in the connecting block, the runner orientation work tube one side with outer protective material body outer wall contact.

Preferably, the control mechanism includes:

the frequency converter is arranged on the polyurethane foaming machine and is electrically connected with the motor;

a flow rate sensor disposed at the open perfusion position for detecting an actual perfusion rate at the open perfusion position;

the first controller is arranged on the polyurethane foaming machine and is respectively and electrically connected with the frequency converter and the flow velocity sensor;

the first controller controls the frequency converter to work based on the detection value of the flow velocity sensor, and comprises the following steps:

step 1: calculating a target frequency of the motor by formula (1) based on the detection value of the flow rate sensor:

wherein f is₁Is a target frequency, v, of the motor₁Actual filling velocity, v, at the open filling position detected by the flow rate sensor₂For a predetermined filling speed, n, at said open filling position₂For a predetermined rotational speed, H, of the first wheel axle₁Is the reduction ratio of the speed reducer, and P is the preset number of pole pairs, eta, of the rotating magnetic field of the motor₁For the operating efficiency of the machine, η₂The transmission efficiency of the transmission wheel assembly;

step 2: based on the calculation result of the formula (1), the first controller controls the frequency converter to work, the frequency converter adjusts the frequency of the motor, and the frequency converter adjusts the actual frequency of the motor to the target frequency of the prime number motor.

Preferably, the method further comprises the following steps:

the first pressure sensor is arranged on the inner wall of the high-temperature shield and used for detecting the pressure of the inner wall of the high-temperature shield;

the second pressure sensor is arranged on the outer wall of the high-temperature shield and used for detecting the pressure of the outer wall of the high-temperature shield;

the temperature sensor is arranged on the inner wall of the high-temperature shield and used for detecting the real-time temperature in the high-temperature shield;

the timer is arranged on the outer side of the first support frame and is electrically connected with the temperature sensor, and the timer is used for recording the time length for reducing the temperature of the inner wall of the high-temperature shield from a preset highest temperature to a preset lowest temperature;

the alarm is arranged on the outer side wall of the first support frame;

the second controller is arranged on the outer side wall of the first support frame and is electrically connected with the first pressure sensor, the second pressure sensor, the temperature sensor, the timer and the alarm respectively;

the second controller controls the alarm to work based on the detection results of the first pressure sensor, the second pressure sensor, the temperature sensor and the timer, and comprises the following steps:

step 11: calculating a natural cooling rate of the air inside the high temperature shield by formula (2) based on the detected values of the temperature sensor and the timer:

wherein Q is₁Is the natural cooling rate of the air inside the high temperature shield, C₁Is the specific heat capacity, rho, of the air in the high temperature shroud₁Is the density, V, of the air in the high temperature shield₁Is the volume inside the high-temperature shield, K₂Is a predetermined maximum temperature, K, in the high-temperature shield₁For a predetermined lowest temperature, t, within the high-temperature shield₁Recording the time for the timer to reduce the temperature of the inner wall of the high-temperature shield from the preset highest temperature to the preset lowest temperature;

step 12: calculating an actual life value of the high-temperature shield by formula (3) based on the calculation result of formula (2) and the detection values of the first pressure sensor and the second pressure sensor:

wherein, T₁Is the actual life value of the high temperature shield, B₁Presetting the shape factor of cracks, P, on the surface of the high-temperature shield₂Pressure, P, of the inner wall of the high temperature shield detected by the first pressure sensor₁Pressure, P, of the outer wall of the high temperature shield detected by the second pressure sensor₀For a predetermined pressure difference, L, between the inner and outer walls of the shield₁Is the height of the high temperature shield, delta₁Is the thickness of the inner wall of the high temperature shield, L₂Presetting a preset length, Q, of cracks on the surface of the high temperature shield₂For a predetermined natural cooling rate, delta, of the high-temperature shield₂Presetting the preset depth of the crack on the surface of the high-temperature shield;

step 13: based on the calculation result of formula (3), the second controller compares the actual life value of the high-temperature shield with the preset life value of the high-temperature shield, and when the actual life value of the high-temperature shield is greater than the preset life value of the high-temperature shield, the second controller controls the alarm to send an alarm prompt.

The technical scheme of the invention has the following advantages: the invention provides a continuous production device for composite heat-insulating pipes, which comprises a feeding mechanism, wherein a conveying mechanism is arranged on the right side of the feeding mechanism, a leading-in forming mechanism is arranged on the right side of the conveying mechanism, a bracket mounting mechanism is positioned on the upper surface of the front side of the leading-in forming mechanism, a temperature preprocessing mechanism is arranged on the leading-in forming mechanism, a curing and shaping mechanism is arranged on the right side of the leading-in forming mechanism, a welding and shaping mechanism is arranged at one end, close to the curing and shaping mechanism, of the leading-in forming mechanism, a pouring mechanism is arranged on the front side of the leading-in forming mechanism, and a control mechanism is arranged on the pouring mechanism. According to the invention, the foaming agent can be injected into the space between the working pipe and the outer protective material body by using the injection mechanism while the working pipe and the outer protective material body are led into the forming mechanism, the production mode is completely different from that of the traditional heat-insulating pipe, and the working pipe and the outer protective pipe are not required to be centered by adopting a manual mounting bracket or a foaming platform, so that the continuous production of the composite heat-insulating pipe is realized, the production efficiency is greatly improved, and the production cost is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the apparatus particularly pointed out in the written description and drawings thereof.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the layout of a continuous production apparatus for composite thermal insulation pipes (the production direction is from left to right);

FIG. 2 is a schematic view of the structure of the insulating tube according to the present invention;

FIG. 3 is a schematic view of a loading mechanism according to the present invention;

FIG. 4 is a schematic view of a conveying mechanism according to the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic view of a part of the structure of the conveying mechanism according to the present invention;

FIG. 7 is a schematic view of the lead-in forming mechanism of the present invention;

FIG. 8 is a schematic view of a lead-in assembly of the present invention;

FIG. 9 is a front and left side view of a forming assembly of the present invention;

FIG. 10 is a schematic view of a temperature preconditioning mechanism of the present invention;

FIG. 11 is a front view of the welding and forming mechanism of the present invention;

FIG. 12 is a left side view of the weld forming mechanism of the present invention;

FIG. 13 is a schematic view of the pouring position of the present invention;

FIG. 14 is a schematic view of the curing and setting mechanism of the present invention;

FIG. 15 is a schematic view of a styling member of the present invention.

In the figure: 1. a feeding mechanism; 2. a conveying mechanism; 3. a leading-in forming mechanism; 4. a bracket mounting mechanism; 5. A temperature pretreatment mechanism; 6. a welding forming mechanism; 7. a perfusion mechanism; 8. a curing and shaping mechanism; 9. a pipe cutting mechanism; 10. a line inserting mechanism; 11. a control mechanism; 101. a first support frame; 102. a conveying roller; 103. A working pipe; 104. an outer protective material roll holder; 105. an outer jacket material body; 201. mounting a bracket; 202. A strip hole; 203. a conveying box body; 204. a box body adjusting screw rod; 205. a speed reducer; 206. an electric machine; 207. a drive wheel assembly; 208. a first axle; 209. a first delivery wheel; 210. a second wheel axle; 211. A second delivery wheel; 212. a first chute; 213. a second chute; 214. a lower slide block; 215. an upper slide block; 216. a fixed block; 217. a first screw; 301. a second support frame; 302. importing a component; 303. a first drum; 304. a second drum; 305. a third drum; 306. a fourth drum; 307. a fifth drum; 308. A sixth drum; 309. a screw seat; 310. a limit screw; 311. a support wheel set; 312. a limit guide wheel; 501. a first heating device; 502. a high temperature shield; 601. a fixing plate; 602. a cylinder; 603. welding the pinch roller; 604. an adjusting seat; 605. a welding gun; 606. welding the inner support frame; 607. a first connecting arm; 608. Welding an auxiliary positioning piece; 609. a second connecting arm; 701. a heat-insulating layer; 702. an open pour position; 703. Closing the perfusion site; 801. a third support frame; 802. heating the heat preservation shield; 803. a sizing assembly; 804. A first bracket; 805. mounting a plate; 806. mounting blocks; 807. a second screw; 808. connecting blocks; 809. A rotating wheel.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

Example 1:

the embodiment of the invention provides a continuous production device for a composite heat-insulating pipe, which comprises the following components in parts by weight as shown in figures 1-15: feeding mechanism 1, conveying mechanism 2, leading-in forming mechanism 3, support installation mechanism 4, temperature preprocessing mechanism 5, welding forming mechanism 6, perfusion mechanism 7, curing forming mechanism 8, pipe cutting mechanism 9, offline mechanism 10 and control mechanism 11, conveying mechanism 2 sets up 1 right side of feeding mechanism, leading-in forming mechanism 3 sets up conveying mechanism 2 right side, support installation mechanism 4 is located leading-in forming mechanism 3 front side upper surface, temperature preprocessing mechanism 5 sets up on leading-in forming mechanism 3, curing forming mechanism 8 sets up leading-in forming mechanism 3 right side, welding forming mechanism 6 sets up leading-in forming mechanism 3 is close to curing forming mechanism 8 one end, pipe cutting mechanism 9 sets up curing forming mechanism 8 right side, the offline mechanism 10 is arranged on the right side of the pipe cutting mechanism 9, the filling mechanism 7 is arranged on the front side of the leading-in forming mechanism 3, and the filling mechanism 7 is provided with a control mechanism 11.

The working principle and the beneficial effects of the technical scheme are as follows: the feeding mechanism 1 is positioned at the leftmost starting position of the device, the feeding mechanism 1 is provided with a working pipe 103 and an outer protection material body 105, the feeding mechanism 1 can realize the continuous feeding function of the working pipe 103 and the outer protection material body 105, the working pipe 103 and the outer protection material body 105 can continuously enter a conveying mechanism 2 on the right side through the feeding mechanism 1, the conveying mechanism 2 is a power device of the continuous production device and can complete the conveying of the working pipe 103 and the outer protection material body 105, an introduction forming mechanism 3 is arranged on the right side of the conveying mechanism 2, the introduction forming mechanism 3 can coat the outer protection material body 105 outside the working pipe 103, one end of the introduction forming mechanism 3 is provided with a welding forming mechanism 6, the welding forming mechanism 6 can be welded at the unclosed position of the outer protection material body 105, so that the outer protection material body 105 forms an outer protection pipe, a temperature pretreatment mechanism 5 is arranged on the leading-in forming mechanism 3 and can heat the workpiece on the leading-in forming mechanism 3, a filling mechanism 7 is arranged at the front side of the leading-in forming mechanism 3 and can fill foaming agent in the process that the working pipe 103 and the outer protective material body 105 pass through the leading-in forming mechanism 3 so as to form an insulating layer 701, a curing and shaping mechanism 8 is arranged at the right side of the leading-in forming mechanism 3 and can finish curing and shaping of the insulating layer 701, then the cured and shaped insulating pipe is conveyed to a pipe cutting mechanism 9, the pipe cutting mechanism 9 can perform pipe cutting operation on the insulating pipe in a fixed length mode, the pipe cutting in the fixed length mode can be performed manually or can be performed automatically in a fixed length mode by utilizing the existing mature matching products, a manufacturer can select the pipe cutting function according to own requirements, a threading mechanism 10 is arranged at the right side of the pipe cutting mechanism 9, the offline mechanism 10 is arranged at the tail end of the continuous production device, the offline mechanism 10 can be matched with a simple guide wheel and a simple transmission mechanism and can be used for arranging, stacking and packaging products manually, and can also be matched with an existing mature automatic conveying and packaging system, in addition, as the working pipe 103 and the outer protective material body 105 just enter the guide forming mechanism 3, the outer protective material body 105 just starts to be shaped, and the working pipe 103 is completely in an exposed state, the support mounting mechanism 4 is required to be arranged at the guide forming mechanism 3, the support mounting mechanism 4 can adopt mechanical automation to carry out manual auxiliary feeding and complete support mounting so as to support the working pipe 103, the filling mechanism 7 is provided with a control mechanism 11, the control mechanism 11 is composed of a plurality of electrical control components which are integrated together, and the control mechanism 11 can be connected with all electrical devices in the continuous production device, the invention realizes the simultaneous movement of the working pipe 103 and the outer protective material body 105 through the feeding mechanism 1 and the conveying mechanism 2, and can utilize the filling mechanism 7 to inject the foaming agent into the space between the working pipe 103 and the outer protective material body 105 through the leading-in forming mechanism 3, which is completely different from the traditional production mode of the heat preservation pipe, does not need to adopt a manual mounting bracket or utilize a foaming platform to center the working pipe 103 and the outer protective pipe, thereby realizing the continuous production of the composite heat preservation pipe, greatly improving the production efficiency and reducing the production cost.

Example 2

On the basis of the above embodiment 1, as shown in fig. 2 and 3, the feeding mechanism 1 includes:

a first support frame 101;

the conveying roller wheel 102 is arranged on the first support frame 101, a plurality of working pipes 103 are arranged on the conveying roller wheel 102, and two adjacent working pipes 103 are connected by at least one of plugging connection or adhesive tape connection;

outer protective material roll support 104, outer protective material roll support 104 sets up first support frame 101 right side, outer protective material roll support 104 is provided with a plurality of, all be provided with outer protective material body 105 on outer protective material roll support 104, outer protective material body 105 is located the work tube 103 below, one of them outer protective material body 105's end is adjacent with the right side the head end of outer protective material body 105 is connected.

The working principle and the beneficial effects of the technical scheme are as follows: the right conveying mechanism 2 is sent into by the conveying roller wheel 102 to the working pipe 103, the process connection location can be carried out between two adjacent working pipes 103 in a plugging or adhesive tape bonding mode, thereby the working pipe 103 is continuously sent into and the inner cavity of the working pipe 103 can be prevented from being polluted when the heat preservation layer 701 foams, the outer protective material body 105 is used in an unreeling mode, the outer protective material body 105 is wound on the outer protective material roll support 104, one outer protective material body 105 is used online, the other outer protective material body 105 is used, the outer protective material bodies 105 of two adjacent rolls are connected end to end, and the continuous feeding of the outer protective material body 105 is ensured.

Example 3

On the basis of embodiment 2, as shown in fig. 4 to 6, the conveying mechanism 2 includes:

the mounting bracket 201 is formed by combining a plurality of connecting rods, and four strip holes 202 are formed in the upper surface of the mounting bracket 201;

the conveying box body 203 is arranged inside the mounting support 201, box body adjusting screws 204 are arranged at four corners of the upper surface of the conveying box body 203, one end of each box body adjusting screw 204 is fixedly connected with the upper surface of the conveying box body 203, the other end of each box body adjusting screw 204 extends into the corresponding elongated hole 202 and slides along the inner wall of the corresponding elongated hole 202, a nut is arranged at the upper end of each box body adjusting screw 204 and is in threaded connection with the upper end of each box body adjusting screw 204, a gap is formed between the lower surface of the conveying box body 203 and the mounting support 201, and the outer protective material body 105 penetrates through the gap and extends to one side, away from the feeding mechanism 1, of the conveying box body 203;

the speed reducer 205 is arranged on one side of the conveying box body 203, and one end of the speed reducer 205 is fixedly connected with the side wall of the conveying box body 203;

the motor 206 is arranged on the upper surface of the speed reducer 205, and the motor 206 is in transmission connection with the speed reducer 205;

the transmission wheel assembly 207 is arranged on the upper surface of the conveying box body 203, and the transmission wheel assembly 207 is in transmission connection with the speed reducer 205;

a first wheel shaft 208, wherein the first wheel shaft 208 is arranged on one side inside the conveying box body 203, one end of the first wheel shaft 208 is rotatably connected with the bottom wall of the conveying box body 203, the other end of the first wheel shaft 208 penetrates through the upper surface of the conveying box body 203 and is in transmission connection with the driving wheel assembly 207, the first wheel shaft 208 is rotatably connected with the upper surface of the conveying box body 203, and a first conveying wheel 209 is arranged on the first wheel shaft 208;

a second wheel shaft 210, the second wheel shaft 210 being disposed inside the conveying box 203 and away from the first wheel shaft 208, the second wheel shaft 210 being provided with a second conveying wheel 211, the second conveying wheel 211 being located at the same height as the first conveying wheel 209, the working tube 103 being located between the first conveying wheel 209 and the second conveying wheel 211, an outer wall of the working tube 103 being in contact with an outer wall of the first conveying wheel 209 and an outer wall of the second conveying wheel 211, respectively, the second conveying wheel 211 being connected to a spacing adjustment mechanism, the spacing adjustment mechanism including: the device comprises a first sliding groove 212, a second sliding groove 213, a lower sliding block 214, an upper sliding block 215, a fixed block 216 and a first screw 217, wherein the first sliding groove 212 is arranged on the lower side wall of the conveying box body 203, the second sliding groove 213 is arranged on the upper side wall of the conveying box body 203, the lower sliding block 214 is arranged in the first sliding groove 212 and is in sliding connection with the first sliding groove 212, the upper sliding block 215 is arranged in the second sliding groove 213 and is in sliding connection with the second sliding groove 213, the upper end and the lower end of the second wheel shaft 210 are respectively in rotating connection with the upper sliding block 215 and the lower sliding block 214, the fixed block 216 is arranged on the upper surface of the conveying box body 203, one end of the first screw 217 is in rotating connection with the side wall of the upper sliding block 215, and the other end of the first screw 217 is in threaded connection with the fixed block 216.

The working principle and the beneficial effects of the technical scheme are as follows: the conveying mechanism 2 is positioned on the right side of the feeding mechanism 1, and in the process from the raw material working pipe 103, the outer protective material body 105 to the final product, the main power of the whole device is provided by the conveying mechanism 2, and the production speed is also adjusted by the conveying mechanism 2. During initial production, the working tube 103 and the outer protective material body 105 need to be fixed at the front end of the welding forming mechanism 6, and then the working tube 103 and the outer protective material body 105 are fixedly connected together by the insulating layer 701, therefore, at the conveyor mechanism 2, the working tube 103 and the outer protective material body 105 always synchronously pass through the production device at the same speed until the product comes off the production line, in the production process, the outer protective material body 105 directly passes through the space between the lower side of the conveying box 203 and the mounting bracket 201, while the working tube 103 is clamped by the paired first conveying wheel 209 and the second conveying wheel 211, the motor 206 drives the first wheel shaft 208 to rotate through the speed reducer 205 and the transmission wheel assembly 207, the first wheel shaft 208 rotates to drive the first conveying wheel 209 to rotate, the first conveying wheel 209 rotates to drive the working tube 103 to move, and meanwhile, the second conveying wheel 211 also rotates under the movement of the working tube 103, the motor 206 is 130ST-H04025, the motor 206 can accurately adjust the rotating speed, the speed reducer 205 is TPTF80-10, the driving wheel assembly 207 is an existing gear or belt driving device, the first conveying wheel 209 is installed on a first wheel shaft 208 through a first bolt assembly, after the first bolt assembly is unscrewed, the first conveying wheel 209 can slide on the first wheel shaft 208, the second conveying wheel 211 is installed on a second wheel shaft 210 through a second bolt assembly, after the second bolt assembly is unscrewed, the second conveying wheel 211 can slide on the second wheel shaft 210, so that the height adjustment of the first conveying wheel 209 and the height adjustment of the second conveying wheel 211 are realized, the first wheel shaft 208 and the second wheel shaft 210 are parallel to each other, the distance between the first wheel shaft 208 and the second wheel shaft 210 can be adjusted through a distance adjusting mechanism, so that the distance between the first conveying wheel 209 and the second conveying wheel 211 is adjusted, the number of the first conveying wheels 209 on the first wheel shaft 208 is two, the number of the second conveying wheels 211 on the second wheel shaft 210 is two, and the number of the first wheel shaft 208 and the number of the second wheel shaft 210 are two, two opposite 90-degree V-shaped clamping structures can be formed between the two first conveying wheels 209 on the same first wheel shaft 208 and the two second conveying wheels 211 on the same second wheel shaft 210, so that the two first conveying wheels are fully contacted with the outer wall of the working pipe 103, clamping and conveying of the working pipes 103 with different specifications can be realized, the practicability of the continuous production device is improved, after a nut at the upper end of a box body adjusting screw 204 is loosened, the box body adjusting screw 204 can slide in the long strip hole 202, the relative position of the conveying box body 203 in the mounting bracket 201 can be conveniently adjusted, the first screw 217 is rotated, the rotating screw can drive the upper sliding block 215 to slide in the second sliding groove 213, thereby driving the second rotating shaft to move, the second rotating shaft drives the lower sliding block 214 to slide in the first sliding groove 212, realizing the adjustment of the position of the second rotating shaft, changing the distance between the second rotating shaft and the first rotating shaft, thereby adapt to the diameter of working tube 103, through adjusting first delivery wheel 209, the height of second delivery wheel 211 and the interval of adjusting first shaft 208 and second shaft 210, the regulation of reunion delivery box 203 and installing support 201 relative position, can coincide the working tube 103 center of carrying with continuous production device's center, the production of different specification products has been realized, the practicality of continuous production device has been improved, need not remove the remodelling in the production process, the production process is simple, and is more time saving and labor saving, the continuous production of compound incubation pipe has been realized, and the production efficiency is further improved, and the production cost is reduced.

Example 4

In addition to embodiment 2 or 3, as shown in fig. 7 to 9, the introduction molding mechanism 3 includes:

the second support frame 301 is positioned at the right side of the conveying mechanism 2;

an introducing component 302, the introducing component 302 is disposed on the upper surface of the second supporting frame 301, the introducing component 302 includes a first guide wheel component, a second guide wheel component, a third guide wheel component and a fourth guide wheel component, the second guide wheel component is disposed on the right side of the first guide wheel component, the third guide wheel component is disposed on the right side of the second guide wheel component, the fourth guide wheel component is disposed on the right side of the third guide wheel component, the first guide wheel component includes a first roller 303 and a second roller 304 which are horizontally disposed, the first roller 303 is disposed above the second roller 304, the upper surface of the first roller 303 is in contact with the lower surface of the working pipe 103, the upper surface of the second roller 304 is in contact with the lower surface of the outer protective material body 105, the second guide wheel component includes two third rollers 305 which are symmetrically disposed, and the two third rollers 305 are disposed in a V shape, the included angle between the two third rollers 305 is adjustable, the third guide wheel assembly comprises a fourth roller 306 and two fifth rollers 307, the fourth roller 306 is horizontally arranged, the two fifth rollers 307 are vertically arranged, the two fifth rollers 307 are symmetrical about the center of the fourth roller 306, the fourth guide wheel assembly comprises three sixth rollers 308, the three sixth rollers 308 are arranged in a triangular shape, and one sixth roller 308 is horizontally arranged;

the forming component is arranged on the upper surface of the second support frame 301, the forming component is positioned on the right side of the guiding component 302, the forming component comprises a screw seat 309, a limit screw 310, support wheel sets 311 and a side limit guide wheel 312, the screw seat 309 is perpendicular to the working pipe 103, the working pipe 103 passes through the center of the screw seat 309, a plurality of groups of limit screws 310 are arranged along the axial direction of the working pipe 103, each group of limit screws 310 is uniformly arranged along the circumferential direction of the working pipe 103, one end of each limit screw 310, far away from the working pipe 103, is in threaded connection with the screw seat 309, the lower end of each support wheel set 311 is fixedly connected with the upper surface of the second support frame 301, the support wheel sets 311 are arranged on the upper surface of the second support frame 301 at equal intervals, and rollers are arranged at the upper ends of the support wheel sets 311, the outer wall of the roller is in contact with the outer protective material body 105, the arc of the outer wall of the roller is matched with the arc section of the working pipe 103, the two edge limiting guide wheels 312 are arranged above the supporting wheel set 311, and the two edge limiting guide wheels 312 are respectively in contact with the two side walls of the outer protective material body 105.

The working principle and the beneficial effects of the technical scheme are as follows: the leading-in forming mechanism 3 is arranged on the right side of the conveying mechanism 2 and is used for leading in and bending the outer protection material body 105 gradually, finally, a tubular structure is formed to cover the outside of the working pipe 103, the cross section of the formed outer protection material body 105 is in an unclosed circular shape, two side plates of the outer protection material body 105 are intersected at the unclosed circular position, a welding forming mechanism 6 is welded to form an outer protection pipe, the outer protection material body 105 enters at the input end of the leading-in forming mechanism 3 in a continuous flat plate mode and then is led into the welding forming mechanism 6 in a continuous unclosed tubular mode, wherein a leading-in assembly 302 is arranged on the second support frame 301, the leading-in assembly 302 is composed of a plurality of groups of guide wheel sets with different spatial positions, the leading-in assembly 302 is used for leading in the outer protection material body 105 gradually and then carrying out primary shaping, the outer protection material body 105 with a straight cross section sequentially passes through the first guide wheel assembly, The second guide wheel assembly, the third guide wheel assembly and the fourth guide wheel assembly are forced to limit through rollers in the first guide wheel assembly, the second guide wheel assembly, the third guide wheel assembly and the fourth guide wheel assembly, the material is forced to be twisted and subjected to spatial deformation and then is led out to a forming assembly through a C-shaped cross section, wherein the first guide wheel assembly is horizontally provided with a first roller 303 and a second roller 304, the first roller 303 is used for supporting and transmitting the working pipe 103, the second roller 304 is used for supporting and transmitting the outer protection material body 105, the working pipe 103 and the outer protection material body 105 enter the second guide wheel assembly through the first guide wheel assembly, the third rollers 305 of the second guide wheel assembly are arranged in a V shape, an included angle between the two third rollers 305 is adjustable, the working pipe 103 can be supported and transmitted by the two third rollers 305, and two sides of the outer protection material body 105 can be limited and bent by the third rollers 305 when passing through the third rollers 305, when the outer protecting material body 105 enters the third guide wheel assembly, two sides of the outer protecting material body 105 are further limited by two fifth rollers 307, two sides of the outer protecting material body 105 are further bent and then conveyed to a fourth guide wheel assembly by a fourth roller 306, three sixth rollers 308 at the fourth guide wheel assembly are arranged in a triangular shape, the upper ends of two sides of the outer protecting material body 105 can be continuously bent, the section of the outer protecting material body 105 is changed into a C shape, then the outer protecting material body 105 enters a forming assembly, the outer protecting material body 105 subjected to preliminary shaping is subjected to fine shaping and sizing in the forming assembly, the cross section of the formed outer protecting material body 105 is changed from the C shape into an unclosed circular shape, two side plate edges are intersected at the circular unclosed position, the outer protecting pipe is closed after being welded by the welding forming mechanism 6, and the outer diameter size of the outer protecting pipe is set for production, the forming component is arranged on the upper surface of the second support frame 301 and positioned at the right side of the guiding component 302, the forming component comprises a screw rod seat 309, a limit screw rod 310, a support wheel set 311 and a side limit guide wheel 312, the limit screw rods 310 are provided with a plurality of groups along the axial direction of the working pipe 103, each group of limit screw rods 310 is uniformly arranged around the circle center of the working pipe 103 by 360 degrees, the limit screw rods 310 are arranged in the screw rod seat 309 and are in threaded connection with the screw rod seat 309, so that the limit screw rods 310 can be screwed in and out in the screw rod seat 309, gradually-changed space envelope points can be formed by adjusting the space position of the end of each limit screw rod 310, the guided-in C-shaped outer protection material body 105 can be forcibly shaped into a circular guide by means of the combined action of the support wheel set 311 and the side limit guide wheel 312, the support wheel set 311 can bear most of the gravity of the working pipe 103 and the outer protection material body 105, and the shaping and positioning functions are also provided, so that smooth leading-in and leading-out of production materials are ensured, the side limiting guide wheel 312 plays a role of assisting sizing, the position of an opening is not closed when the outer protection material body 105 with the circular cross section is led out, welding by the welding forming mechanism 6 is convenient to adopt in the subsequent process, the number of the leading-in component 302, the limiting screw 310 and the supporting wheel set 311 can be increased or decreased according to the product specification, the using amount of small-size products is less, the using amount of large-size products is more, the working pipe 103 and the outer protection material body 105 synchronously pass through the leading-in forming mechanism 3, and when the outer protection material body 105 is finally led out, the outer protection material body 105 can be wrapped outside the working pipe 103 and form the outer protection pipe.

Example 5

On the basis of any one of embodiments 2 to 4, as shown in fig. 10, the temperature pretreatment mechanism 5 includes:

the first heating assembly is arranged at the guiding assembly 302 and comprises a plurality of first heating devices 501, the first heating devices 501 are arranged at intervals outside the working pipe 103 on the guiding assembly 302, and the first heating devices 501 heat the working pipe 103 and the outer protective material body 105 in any one of a surrounding heating mode and a unidirectional heating mode;

the second heating assembly is arranged at the forming assembly and comprises a high-temperature shield 502, the high-temperature shield 502 is covered outside the forming assembly, and a second heating device is connected with the high-temperature shield 502.

The working principle and the beneficial effects of the technical scheme are as follows: the temperature pretreatment mechanism 5 can pretreat the temperatures of the working pipe 103 and the outer protective material body 105, which is beneficial to the leading-in forming of the outer protective material body 105 and the improvement of the foaming quality and the utilization rate of the thermal insulation material during the manufacture of the thermal insulation layer 701, the temperature pretreatment is a heating requirement, the temperature can be raised by adopting any one mode or a combined heating mode of multi-point strong heating or a high-temperature shield 502, generally adopting a high-temperature air supply heat source, a first heating assembly is arranged at the leading-in assembly 302 and comprises a plurality of first heating devices 501, the plurality of first heating devices 501 are distributed at intervals outside the working pipe 103 of the leading-in assembly 302, the first heating devices 501 can be arranged at the heating position to surround the working pipe 103 for heating or to discharge air in a single direction for heating the working pipe 103, and the positions of the first heating devices 501 can be arranged according to the requirements of users, the angle of the first heating device 501 for conveying hot air is adjustable, the heat utilization rate is improved, a second heating assembly is arranged at a forming assembly, the second heating assembly comprises a high-temperature shield 502, the high-temperature shield 502 is covered outside the forming assembly, a second heating device is arranged outside the high-temperature shield 502, hot air generated by the second heating device can be conveyed into the high-temperature shield 502, then the space inside the high-temperature shield 502 is continuously kept in a set high-temperature range, because the temperature of a production material to be preprocessed is required to be higher than 35 ℃ in the production process of a heat preservation pipe, the temperature rising time of the production material is short due to the high-speed inlet and outlet of the production material, the purpose of quickly rising the production material cannot be achieved in a conventional constant temperature room in a short time, and therefore, the temperature of the working pipe 103 and the outer protection material body 105 is preprocessed by a temperature preprocessing mechanism 5, through the high-efficient heating of intense heat, realized the rapid heating up of working tube 103 and outer protective material body 105.

Example 6

On the basis of any one of embodiments 2 to 5, as shown in fig. 11 and 12, the welding forming mechanism 6 includes:

the fixing plate 601 is vertically arranged at the right end of the guide forming mechanism 3, and a through hole for the working pipe 103 and the outer protective material body 105 to pass through is formed in the center of the fixing plate 601;

the air cylinder 602 is arranged on the right side wall of the fixing plate 601, and the lower end of the air cylinder 602 is provided with a welding pinch roller 603;

the adjusting seat 604 is arranged on the left side wall of the fixing plate 601, a welding gun 605 is arranged on the adjusting seat 604, and the welding gun 605 is positioned above the side of the welding opening of the outer protective material body 105;

the welding inner support frame 606 is connected with the side wall of the fixed plate 601 through a first connecting arm 607, the welding inner support frame 606 is positioned below the welding pinch roller 603, and the welding inner support frame 606 is cantilevered into the space between the outer protective material body 105 and the working pipe 103 from the opening of the outer protective material body 105 to the position below the welding gun 605;

the auxiliary welding positioning piece 608 is disposed on the left side of the fixing plate 601 through a second connecting arm 609, guide grooves with angles are formed in two sides of the auxiliary welding positioning piece 608, and edges to be welded of the outer protective material body 105 enter the guide grooves and then are led out of the guide grooves.

The working principle and the beneficial effects of the technical scheme are as follows: the welding forming mechanism 6 is arranged at the right end of the leading-in forming mechanism 3 and is superposed with the end head of the leading-in forming mechanism 3, the welding forming mechanism 6 can perform welding operation while finishing tubular forming on the outer protective material, so that the outer protective tube is formed by closed welding when the end head of the outer protective material body 105 is led out, the welding forming mechanism 6 specifically comprises a fixing plate 601, the bottom of the fixing plate 601 is fixedly connected with the right end of the leading-in forming mechanism 3, the right side wall of the upper end of the fixing plate 601 is provided with a cylinder 602, the model of the cylinder 602 is SC63, the output end of the lower end of the cylinder 602 is provided with a welding pinch roller 603, the welding pinch roller 603 is controlled by the cylinder 602 to move up and down and can adjust the pressure of the welding pinch roller 603, the left side wall of the fixing plate 601 is provided with an adjusting seat 604, the adjusting seat 604 is provided with a welding gun 605, the welding gun 605 is positioned above the opening to be welded of the outer protective material body 105, the position of a welding gun 605 can be adjusted and fixed through an adjusting seat 604, a first connecting arm 607 and a second connecting arm 609 are further arranged on the side wall of the fixing plate 601, a welding inner support frame 606 is arranged at the lower end of the first connecting arm 607, the welding inner support frame 606 overhangs into the space between the outer protective pipe and the working pipe 103 from the opening of the outer protective material body 105 and extends to the welding position, a welding auxiliary positioning piece 608 is arranged at the lower end of the second connecting arm 609, guide grooves with angles are arranged on two sides of the welding auxiliary positioning piece 608, the welding edge of the outer protective material body 105 enters from the guide grooves and then is led out, so that the welding positioning function is achieved, the heating position and the heating effect of the welding gun 605 can be ensured, the outer protective material body 105 is made of thermoplastic material, the welding gun 605 is aligned to the position to be welded of the outer protective material body 105 and is accurately heated, and then an auxiliary welding pressure is provided by a welding pinch roller 603 and the welding inner support frame 606, reliable welding of the outer jacket material body 105 can be achieved.

Example 7

On the basis of embodiment 6, as shown in fig. 13, an insulating layer 701 is disposed between an inner wall of the outer protective material body 105 and an outer wall of the working tube 103, the insulating layer 701 is manufactured by the pouring mechanism 7, the pouring mechanism 7 includes a polyurethane foaming machine, a pouring position of the pouring mechanism 7 is any one of an open pouring position 702 or a closed pouring position 703, the open pouring position 702 is located between the fourth guide wheel assembly and the forming assembly, and the closed pouring position 703 is located between the forming assembly and the curing and shaping mechanism 8.

The working principle and the beneficial effects of the technical scheme are as follows: an insulating layer 701 is arranged between the inner wall of the outer protective material body 105 and the outer wall of the working pipe 103, the insulating layer 701 is generally made of polyurethane rigid foam plastic, and the filling mechanism 7 is used for manufacturing the insulating layer 701, wherein the filling mechanism 7 adopts an existing polyurethane foaming machine, the model of the polyurethane foaming machine is FLT.H-12, in order to facilitate monitoring and operation of the whole device, the polyurethane foaming machine is arranged on the front side of the leading-in forming mechanism 3, polyurethane raw materials are conveyed to the filling gun from a conveying pipeline of the polyurethane foaming machine, the filling gun is aligned to a filling position, then the filling gun is used for manufacturing the insulating layer 701, the filling position can be set to an open filling position 702 or a closed filling position 703, the open filling position 702 is arranged between the fourth guide wheel component and the forming component, and at this time, the outer protective material body 105 is initially led to a U-shaped structure, possess the ability that bears the weight of the foaming material, can use and fill the rifle and pour into in uncovered position 702 department, closed position 703 of pouring sets up between shaping subassembly and curing and sizing mechanism 8, it is located welding position and leans on preceding 20 centimetres-30 centimetres department, in the space between the working tube 103 of welding position front end and the outer protective material body 105 that will fill rifle and conveying pipeline along welding inner support frame 606 cantilever welding position front end, outer protective material body 105 has accomplished by welding this moment, outer protective material body 105 has formed the heat preservation 701 space between the inner wall of 105 and the working tube 103 outer wall, can seal the operation of pouring here, the preparation of heat preservation 701 has been realized in working tube 103 and outer protective material body 105 transportation process, production efficiency is greatly improved.

Example 8

In example 7, as shown in fig. 14 and 15, the ripening and setting mechanism 8 includes:

a third supporting frame 801, wherein the third supporting frame 801 is positioned at the right side of the second supporting frame 301;

the heating and heat-preserving shield 802 is covered on the upper surface of the third supporting frame 801, a second through hole is formed in the heating and heat-preserving shield 802 along the length direction of the heating and heat-preserving shield 802, and an air heater is arranged on the outer side of the heating and heat-preserving shield 802 and communicated with the inside of the heating and heat-preserving shield 802 through a connecting pipe;

a shaping assembly 803, the shaping assembly 803 being disposed inside the heating and heat-preserving shield 802, the shaping assembly 803 comprising a first bracket 804, a mounting plate 805, a mounting block 806, a second screw 807, a connecting block 808 and a rotating wheel 809, the lower end of the first bracket 804 is fixedly connected with the upper surface of the third supporting frame 801, the mounting plate 805 is arranged at the upper end of the first bracket 804, a plurality of mounting blocks 806 are distributed on the side wall array of the mounting plate 805, a second screw 807 is arranged in the mounting block 806, the second screw 807 is in threaded connection with the mounting block 806, the second screw 807 is provided with a connecting block 808 toward one end of the working pipe 103, the connecting block 808 is rotatably connected with the second screw 807, a rotating wheel 809 is arranged in the connecting block 808, the rotating wheel 809 contacts with the outer wall of the outer protective material body 105 towards the side of the working pipe 103.

The working principle and the beneficial effects of the technical scheme are as follows: after the pouring of the polyurethane heat-insulating material is completed, the polyurethane needs to be foamed to form the heat-insulating layer 701, the heat-insulating pipe can be stably used after the heat-insulating layer 701 is cured and shaped, therefore, the curing and shaping mechanism 8 is arranged on the right side of the welding and shaping mechanism 6, the curing and shaping mechanism 8 is used for ensuring the smooth completion of the foaming process, the heat-insulating layer 701 is provided with early curing time and proper temperature through the heating and heat-insulating shield 802, meanwhile, the heat-insulating pipe product is corrected and shaped through the shaping assembly 803, the roundness and the straightness of the heat-insulating pipe are ensured, the heating and heat-insulating shield 802 covers the whole curing and shaping mechanism 8 in length, the hot air blower is arranged outside the heating and heat-insulating shield 802, the model of the hot air blower is HJJT-3380-BX, the hot air blower heats the interior of the heating and heat-insulating shield 802 in a hot air mode, and hot air generated by the hot air blower enters the heating and heat-insulating shield 802 through a connecting pipe, therefore, the interior of the heating and heat-insulating shield 802 is kept in a constant temperature state, the constant temperature is adaptively adjusted according to actual needs, the shaping assembly 803 is arranged in the heating and heat-insulating shield 802, the shaping assembly 803 is composed of space guide wheel sets which are arranged at equal intervals along the axial direction, the shaping assembly comprises a first support 804, a mounting plate 805, mounting blocks 806, a second screw 807, a connecting block 808 and a rotating wheel 809, the lower end of the first support 804 is fixedly connected with the upper surface of a third support 801, the first support 804 is provided with a plurality of first supports, the distance between every two adjacent first supports 804 is not more than 10 cm, the upper end of each first support 804 is provided with the mounting plate 805, the center of the mounting plate 805 is provided with a through hole for the working pipe 103 to pass through, the side wall of the mounting plate 805 is provided with the mounting blocks 806, the mounting blocks 806 are connected with the second screw 807 in a threaded manner, and the second screw 807 is provided with the connecting block 808 facing one end of the working pipe 103, be provided with runner 809 on connecting block 808, runner 809 can contact with outer protective material body 105 outer wall, first support 804 sets up the distance and is inseparabler, the design effect of design subassembly 803 is then better, runner 809 still is connected with drive arrangement, drive arrangement can be small motor, the small motor model is S8D40-24D, through setting up drive arrangement, drive arrangement drives runner 809 and rotates, runner 809 and outer protective material body 105 outer wall contact can be helped the insulating tube to pass through smoothly in design in-process from design subassembly 803, design subassembly 803 can also adopt the track of taking the power supply to divide the mode design method, improve the design effect of design subassembly 803, guarantee that the circularity and the straightness accuracy of product are in predetermineeing the standard range.

Example 9

On the basis of embodiment 7, the control mechanism includes:

the frequency converter is arranged on the polyurethane foaming machine and is electrically connected with the motor 206;

a flow rate sensor disposed at the open perfusion position 702 for detecting an actual perfusion rate at the open perfusion position 702;

the first controller is arranged on the polyurethane foaming machine and is respectively and electrically connected with the frequency converter and the flow velocity sensor;

the first controller controls the frequency converter to work based on the detection value of the flow velocity sensor, and comprises the following steps:

step 1: based on the detection value of the flow rate sensor, a target frequency of the motor 206 is calculated by formula (1):

wherein f is₁Is the target frequency, v, of the motor 206₁Actual filling velocity, v at the open filling position 702 detected for the flow rate sensor₂For the preset pouring speed, n, at the open pouring position 702₂Is the first hub 208 predetermined rotational speed, H₁Is the reduction ratio of the speed reducer 205, and P is the preset number of pole pairs, eta, of the rotating magnetic field of the motor 206₁For the operating efficiency, η, of the motor 206₂The transmission efficiency of the transmission wheel assembly 207;

step 2: based on the calculation result of equation (1), the first controller controls the frequency converter to operate, the frequency converter adjusts the frequency of the motor 206, and the frequency converter adjusts the actual frequency of the motor 206 to the target frequency of the prime number motor 206.

The working principle and the beneficial effects of the technical scheme are as follows: the polyurethane foaming machine is also provided with a frequency converter and a first controller, the model of the frequency converter is GD200A-015G/018P-4, the model of the first controller is SPC-SFMC-X3632A, the frequency converter can adjust the frequency of the motor 206, the open filling position 702 is provided with a flow rate sensor, the model of the flow rate sensor is FPR300, the actual filling speed of the open filling position 702 can be detected through the flow rate sensor, the target frequency of the motor 206 can be accurately calculated through a formula (1) according to the detection value of the flow rate sensor, the working efficiency value range of the motor 206 is 0.85-0.9, the transmission efficiency of the transmission wheel assembly 207 is 0.78-0.88, then the first controller controls the frequency converter to work, the frequency converter can adjust the actual frequency of the motor 206 to the target frequency of the motor 206, and accordingly changes the rotating speed of the motor 206, by adopting the scheme, the real-time monitoring of the perfusion speed can be realized, and the rotating speed of the motor 206 is changed according to the perfusion speed, so that the transmission speed of the working tube is matched with the perfusion speed, as the perfusion rate increases, the target frequency of the motor 206 increases, causing the rotational speed of the motor 206 to increase, thereby increasing the conveying speed of the working pipe and improving the production efficiency, when the perfusion speed is slow, if the conveying speed of the working pipe is fast, incomplete filling may be caused, and at this time, the target frequency of the motor 206 calculated by the formula (1) is reduced, the rotation speed of the motor 206 is reduced, the filling effect is ensured, the product quality is improved, the scheme can automatically adjust the rotating speed of the motor 206 according to the filling speed, thereby adjusting the conveying speed of the working pipe, improving the intelligent degree and the automatic level of the device and reducing the labor intensity of workers.

Example 10

On the basis of embodiment 5, the method further comprises the following steps:

a first pressure sensor disposed on an inner wall of the high temperature shield 502 for detecting a pressure of the inner wall of the high temperature shield 502;

a second pressure sensor disposed on an outer wall of the high temperature shield 502 for detecting a pressure of the outer wall of the high temperature shield 502;

a temperature sensor disposed on an inner wall of the high temperature shield 502 for detecting a real-time temperature within the high temperature shield 502;

the timer is arranged on the outer side of the first support frame 101, is electrically connected with the temperature sensor, and is used for recording the time length for reducing the temperature of the inner wall of the high-temperature shield 502 from a preset maximum temperature to a preset minimum temperature;

the alarm is arranged on the outer side wall of the first support frame 101;

the second controller is arranged on the outer side wall of the first support frame 101 and is electrically connected with the first pressure sensor, the second pressure sensor, the temperature sensor, the timer and the alarm respectively;

the second controller controls the alarm to work based on the detection results of the first pressure sensor, the second pressure sensor, the temperature sensor and the timer, and comprises the following steps:

step 11: based on the detected values of the temperature sensor and the timer, the natural cooling rate of the air inside the high temperature shield 502 is calculated by formula (2):

wherein Q is₁Is inside the high temperature shield 502Natural cooling rate of partial air, C₁Is the specific heat capacity, ρ, of the air within the high temperature shroud 502₁Is the density, V, of the air within the high temperature shield 502₁Is the volume inside the high temperature shield 502, K₂Is a predetermined maximum temperature, K, within the high temperature shield 502₁Is a predetermined minimum temperature, t, within the high temperature shield 502₁The length of time taken for the timer to record the temperature of the inner wall of the high temperature shield 502 decreasing from a preset maximum temperature to a preset minimum temperature;

step 12: calculating an actual life value of the high temperature shield 502 by formula (3) based on the calculation result of formula (2) and the detection values of the first pressure sensor and the second pressure sensor:

wherein, T₁Is the actual life value of the high temperature shield 502, B₁Presetting a crack shape factor, P, for the surface of the high temperature shroud 502₂Pressure, P, of the inner wall of the high temperature shield 502 detected for the first pressure sensor₁Pressure, P, of the outer wall of the high temperature shield 502 detected for the second pressure sensor₀Is a predetermined pressure difference, L, between the inner and outer walls of the high temperature shield 502₁Is the height, δ, of the high temperature shield 502₁Is the thickness, L, of the inner wall of the high temperature shield 502₂A predetermined length, Q, of predetermined cracks on the surface of the high temperature shield 502₂A predetermined natural cooling rate, δ, for the high temperature shield 502₂Presetting a preset depth of cracks on the surface of the high-temperature shield 502;

step 13: based on the calculation result of formula (3), the second controller compares the actual life value of the high-temperature shield 502 with the preset life value of the high-temperature shield 502, and when the actual life value of the high-temperature shield 502 is greater than the preset life value of the high-temperature shield 502, the second controller controls the alarm to send out an alarm prompt.

The working principle and the beneficial effects of the technical scheme are as follows: the inner wall of the high-temperature shield 502 is further provided with a first pressure sensor and a second pressure sensor which can respectively detect the pressure of the inner wall and the outer wall of the high-temperature shield 502, the second heating device heats the high-temperature shield 502 in stages, when the temperature inside the high-temperature shield 502 is lower than a preset minimum temperature, the second controller can control the second heating device to heat the high-temperature shield 502, when the temperature inside the high-temperature shield 502 is higher than a preset maximum temperature, the second controller controls the second heating device to stop working, meanwhile, the timer can record the time length for the temperature of the inner wall of the high-temperature shield 502 to be reduced from the preset maximum temperature to the preset minimum temperature, the natural cooling rate of the air inside the high-temperature shield 502 can be accurately calculated through a formula (2), then the actual service life value of the high-temperature shield 502 can be calculated through the formula (3) according to the calculation result of the formula (2), wherein, the shape coefficient of the preset crack on the surface of the high temperature shield 502 is the ratio of the preset depth and the preset length of the preset crack, finally, the second controller can compare the actual life value of the high temperature shield 502 calculated by the formula (3) with the preset life value of the high temperature shield 502 prestored in the second controller, when the actual life value is greater than the preset life value, the second controller can control the alarm to send out an alarm prompt, because the high temperature shield 502 is easy to crack under the high temperature working environment for a long time, after the crack is generated, the natural cooling rate of the air inside the high temperature shield 502 is increased, the heat preservation effect of the high temperature shield 502 is reduced, in the prior art, the service life of the high temperature shield 502 cannot be judged according to the natural cooling rate of the air inside the high temperature shield 502, and only the replacement can be carried out by experience, if the high temperature shield 502 reaches the service life, the production efficiency of the production device can be influenced, the product quality is reduced, the actual service life value of the high-temperature shield 502 can be accurately calculated through the scheme, the automatic alarm of the alarm is used for reminding a worker to replace the damaged high-temperature shield 502 in time, the production efficiency of the production device is ensured, and the product quality is improved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.