阅读说明：本技术 一种塑料管材加工工艺及加工设备 (Plastic pipe processing technology and processing equipment ) 是由 张德龙 岳强 于 2021-07-05 设计创作，主要内容包括：本发明公开了一种塑料管材加工工艺及加工设备,S1、将经配比的原料输送至挤出机内,通过挤出机排料得到塑料管坯,S2、将塑料管坯通入初步冷却装置中,对塑料管坯表面温度进行吸收,并使塑料管坯表面粘附有水液,得到初步冷却塑料管,S3、对初步冷却塑料管进行风冷,使初步冷却塑料管表面的水分快速蒸发,得到再次冷却塑料管,S4、将再次冷却塑料管通入水液中进行完成冷却,得到成型塑料管,S5、根据出场所需塑料管尺寸,对成型塑料管进行切割,得到出厂塑料管,本发明在塑料管坯通入水液冷却前,初步冷却装置与输风机构相互配合,对管件表面温度进行逐级预降温处理,使管件在通水降温前管件内外温度趋于相同,减少管件受温差影响造成损毁。(The invention discloses a plastic pipe processing technique and processing equipment, S1, conveying proportioned raw materials into an extruder, discharging through the extruder to obtain a plastic pipe blank, S2, introducing the plastic pipe blank into a primary cooling device, absorbing the surface temperature of the plastic pipe blank, adhering water liquid on the surface of the plastic pipe blank to obtain a primary cooling plastic pipe, S3, air-cooling the primary cooling plastic pipe, rapidly evaporating the water on the surface of the primary cooling plastic pipe to obtain a secondary cooling plastic pipe, S4, introducing the secondary cooling plastic pipe into the water liquid for completing cooling to obtain a formed plastic pipe, S5, cutting the formed plastic pipe according to the size of the plastic pipe required by departure to obtain the plastic pipe for leaving the factory, wherein the primary cooling device is matched with an air conveying mechanism to pre-cool the surface temperature of the pipe step by step before the plastic pipe blank is introduced with the water liquid for cooling, the temperature inside and outside the pipe fitting tends to be the same before the pipe fitting is cooled by water, and the damage of the pipe fitting caused by the influence of temperature difference is reduced.)

1. A plastic pipe processing technology and processing equipment are characterized by comprising the following steps:

s1, conveying the proportioned raw materials into an extruder, and discharging through the extruder to obtain a plastic pipe blank;

s2, introducing the plastic pipe blank into a primary cooling device, absorbing the surface temperature of the plastic pipe blank, and adhering water liquid on the surface of the plastic pipe blank to obtain a primary cooling plastic pipe;

s3, air cooling the primary cooling plastic pipe to quickly evaporate water on the surface of the primary cooling plastic pipe to obtain a secondary cooling plastic pipe;

s4, introducing the recooled plastic pipe into water solution to finish cooling to obtain a molded plastic pipe;

and S5, cutting the formed plastic pipe according to the size of the plastic pipe required by the factory leaving to obtain the factory plastic pipe.

2. The plastic pipe processing technology and processing equipment as claimed in claim 1, wherein in the step S2, the specific process of performing the preliminary cooling treatment on the preliminary cooling plastic pipe includes:

s201, contacting the outer wall of the pipe fitting through a contact type heat absorption part, and absorbing heat on the outer wall of the pipe fitting;

s202, spraying water to the outer wall of the pipe fitting to enable water liquid to be adsorbed on the outer wall of the pipe fitting.

3. The plastic pipe processing technology and processing equipment as claimed in claim 2, wherein in step S201, the contact type heat absorbing component contacts with the outer wall of the pipe member and supports the inner wall of the pipe member to limit the inner diameter of the plastic pipe blank.

4. The plastic pipe processing technology and processing equipment as claimed in claim 3, wherein the inner wall of the pipe is heated by vacuum pumping while supporting the inner wall of the pipe, so that the inner temperature and the outer temperature of the pipe are approximately the same, and the temperature difference between the inner temperature and the outer temperature of the pipe blank is reduced.

5. The plastic pipe processing technology and processing equipment according to claim 1, wherein the plastic pipe processing technology and processing equipment are characterized in that: an air conveying mechanism (2) for performing evaporative cooling on the pipe fittings and a water tank (3) arranged below the air conveying mechanism (2) and used for performing final shaping on the pipe fittings are arranged below the primary cooling device, and an adjusting mechanism (4) for driving the pipe fittings is arranged inside the water tank (3);

the air conveying mechanism (2) comprises an air box (201), air conveying openings (202) are formed in the inner walls of the two sides of the air box (201), and a fan (203) is arranged inside the air conveying openings (202).

6. The plastic pipe processing technology and processing equipment according to claim 5, wherein the plastic pipe processing technology and processing equipment are characterized in that: adjustment mechanism (4) including being used for cooling off driven vertical adjusting part (41) step by step to the pipe fitting, vertical adjusting part (41) including set up in driving motor (410) of water tank (3) below and connect in lifter (411) of driving motor (410) output, the vertical upwards of output of lifter (411) passes water tank (3), defeated wind mechanism (2) and extend to primary cooling device's inside.

7. The plastic pipe processing technology and processing equipment according to claim 5, wherein the plastic pipe processing technology and processing equipment are characterized in that: the primary cooling device comprises a cooling treatment box (101), a contact type heat absorbing part and a water squeezing part (12) for conveying water to the outer surface of the pipe fitting;

the contact type heat absorption part comprises rolling balls (111) arranged on the inner wall of the cooling treatment box (101) and a plurality of movable grooves (110) which are arranged on the inner wall of the cooling treatment box (101) and are used for the movement of the rolling balls (111), one side of the rolling ball (111) is inserted with a central shaft in a penetrating way, and one side of the central shaft is hinged with the inner wall of the movable groove (110), a water tank (112) communicated with the interior of the movable tank (110) is arranged in the wall of the cooling treatment box (101), one end of the rolling ball (111) extends to the inside of the water tank (112), the other end of the rolling ball (111) extends to the inside of the cooling treatment box (101), both sides of the cooling treatment box (101) are provided with water liquid circulation pipes (114) for conveying water liquid in the water tank (112), and sealing gaskets (113) used for sealing the interior of the movable groove (110) are arranged at two ends of the surface of the rolling ball (111).

8. The plastic pipe processing technology and processing equipment according to claim 7, wherein the plastic pipe processing technology and processing equipment are characterized in that: the water squeezing part (12) comprises a water supply moving groove (120) arranged in the wall of the cooling treatment box (101) and a sponge (121) arranged on the inner wall of the water supply moving groove (120), a water outlet (122) communicated with the inside of the cooling treatment box (101) is formed in the inner wall of the water supply moving groove (120), the bottom end of the sponge (121) is attached to the water inlet end of the water outlet (122), the water supply moving groove (120) is positioned below the water tank (112), a plurality of water absorbing cotton threads (126) are arranged in the water supply moving groove (120), the absorbing end of each water absorbing cotton thread (126) penetrates through the water supply moving groove (120) and extends into the water tank (112), a pressing block (125) is further arranged in the water supply moving groove (120), the other side of the central shaft of the rolling ball (111) penetrates through the moving groove (110) and extends into the water supply moving groove (120) to be connected with the pressing block (125), the inside of feedwater motion groove (120) is provided with clamp plate (123) that press movable block (125) to contradict, the both sides on clamp plate (123) top are evenly run through and are inserted and be equipped with gag lever post (124) that the inner wall of feedwater motion groove (120) links to each other.

9. The plastic pipe processing technology and processing equipment according to claim 6, wherein the plastic pipe processing technology and processing equipment are characterized in that: a pipe inner wall supporting and adjusting component (42) used for limiting the inner diameter of the pipe is also arranged in the primary cooling device, the pipe inner wall supporting and adjusting component (42) comprises a rotating cavity (420) arranged in the lifting rod (411), the inner wall of one end of the rotating cavity (420) is connected with a screw (421) through an embedded bearing, the end of the screw (421) passes through the rotating cavity (420) and extends to the outer side of the lifting rod (411), the outer surface of the lifting rod (411) is provided with a plurality of accommodating grooves (423) communicated with the inside of the rotating cavity (420), a diameter-fixing plate (424) is movably arranged in the accommodating groove (423), the outer surface of the screw (421) is connected with a threaded sleeve (422) through threads, the surface of the threaded sleeve (422) is hinged with a telescopic connecting rod (425), and the tail end of the telescopic connecting rod (425) is hinged with the diameter-determining plate (424).

10. The plastic pipe processing technology and processing equipment according to claim 9, wherein the plastic pipe processing technology comprises the following steps: pipe fitting inner wall temperature absorbing part (43) that is used for sucking the inside heat of pipe fitting is provided with in pipe fitting inner wall support adjustment part (42), pipe fitting inner wall temperature absorbing part (43) are including inserting locate lifter (411) end and extend to rotate gas port (430) in the chamber (420), the gas transmission end of gas port (430) is connected with connecting pipe (431) that link to each other with the absorption pump.

Technical Field

The invention relates to the technical field of plastic pipe processing, in particular to a plastic pipe processing technology and processing equipment.

Background

The plastic pipe is made up by using synthetic resin, i.e. polyester as raw material, adding stabilizing agent, lubricating agent and plasticizer, and adopting "plastic" method and extruding-processing process in pipe-making machine, and has the characteristics of light weight, corrosion resistance, beautiful appearance, no bad smell, easy processing and convenient construction, etc., so that it can be extensively used in building engineering.

Present plastic tubing extrusion equipment is when continuously outwards carrying being done to the plastics pipe fitting, in order to carry out the cooling treatment to the plastic tubing, follow-up extruding at the plastics pipe fitting, can be equipped with the basin that cools down to the plastic tubing alone more, directly let in the plastic tubing to the basin inside, though the cooling effect is obvious with this kind of mode, it is fast, but certain drawback exists in the in-service use, the plastic tubing is when the inside and the water liquid contact of basin, the plastic tubing surface cools down rapidly, lead to the inside and the outside obvious difference in temperature of formation of plastic tubing, tubular product formation internal stress, take place stronger physical deformation, and then lead to the plastic tubing surface roughness not high, the production quality variation of plastic tubing.

Disclosure of Invention

The invention aims to provide a plastic pipe processing technology and processing equipment, which solve the problems that the surface temperature difference of a plastic pipe is changed violently, the pipe is easy to form internal stress, the surface of the plastic pipe can generate stronger physical deformation, the surface flatness of the plastic pipe is not high, and the quality of the plastic pipe is poor when the existing plastic pipe is cooled by water.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

the invention provides a plastic pipe processing technology and processing equipment, which comprises the following steps:

s1, conveying the proportioned raw materials into an extruder, and discharging through the extruder to obtain a plastic pipe blank;

s2, introducing the plastic pipe blank into a primary cooling device, absorbing the surface temperature of the plastic pipe blank, and adhering water liquid on the surface of the plastic pipe blank to obtain a primary cooling plastic pipe;

s3, air cooling the primary cooling plastic pipe to quickly evaporate water on the surface of the primary cooling plastic pipe to obtain a secondary cooling plastic pipe;

s4, introducing the recooled plastic pipe into water solution to finish cooling to obtain a molded plastic pipe;

and S5, cutting the formed plastic pipe according to the size of the plastic pipe required by the factory leaving to obtain the factory plastic pipe.

As a preferred embodiment of the plastic pipe processing technology and the processing equipment of the present invention, in the step S2, the specific process of performing the preliminary cooling treatment on the preliminary cooling plastic pipe includes:

s201, contacting the outer wall of the pipe fitting through a contact type heat absorption part, and absorbing heat on the outer wall of the pipe fitting;

s202, spraying water to the outer wall of the pipe fitting to enable water liquid to be adsorbed on the outer wall of the pipe fitting.

In a preferred embodiment of the plastic pipe processing process and the plastic pipe processing apparatus of the present invention, in step S201, the contact heat absorbing member contacts with the outer wall of the pipe while supporting the inner wall of the pipe to limit the inner diameter of the plastic pipe blank.

As the optimized scheme of the plastic pipe processing technology and the processing equipment, the inner wall of the pipe fitting is supported and simultaneously is subjected to vacuum heat pumping, so that the internal temperature and the external temperature of the pipe fitting are approximately the same, and the temperature difference between the inside and the outside of the pipe blank is reduced.

As a preferred scheme of the plastic pipe processing technology and the processing equipment, an air conveying mechanism for performing evaporative cooling on the pipe fitting and a water tank arranged below the air conveying mechanism for performing final shaping on the pipe fitting are arranged below the primary cooling device, and an adjusting mechanism for driving the pipe fitting is arranged inside the water tank;

the air conveying mechanism comprises an air box, air conveying openings are formed in the inner walls of the two sides of the air box, and a fan is arranged inside each air conveying opening.

As a preferable scheme of the processing technology and the processing equipment for the plastic pipe, the adjusting mechanism comprises a longitudinal adjusting part for longitudinally displacing the pipe, the longitudinal adjusting part comprises a driving motor arranged below the water tank and a lifting rod connected to the output end of the driving motor, and the output end of the lifting rod vertically penetrates through the water tank and the air delivery mechanism upwards and extends to the interior of the primary cooling device.

As a preferred scheme of the processing technology and the processing equipment of the plastic pipe, the primary cooling device comprises a cooling treatment box, a contact type heat absorption part and a water squeezing part for conveying water to the outer surface of the pipe fitting;

contact heat absorbing component including set up in spin and a plurality of seting up on the cooling treatment incasement wall be used for on the cooling treatment incasement wall the activity groove of spin activity, one side of spin run through insert the one side that is equipped with center pin and center pin with the inner wall in activity groove is articulated mutually, be provided with in the wall of cooling treatment case with the basin that the activity inslot portion is linked together, the one end of spin extends to the inside of basin, the other end of spin extends to the inside of cooling treatment case, the both sides of cooling treatment case all be provided with be used for right the water liquid runner pipe of carrying water liquid in the basin, the both ends on spin surface all are provided with and are used for right the activity inslot portion carries out inclosed sealed pad.

As a preferable scheme of the processing technology and the processing equipment of the plastic pipe, the water squeezing part comprises a water supply moving groove arranged in the wall of the cooling processing tank and sponge arranged on the inner wall of the water supply moving groove, the inner wall of the water supply moving groove is provided with a water outlet communicated with the inside of the cooling processing tank, the bottom end of the sponge is attached to the water inlet end of the water outlet, the water supply moving groove is positioned below the water tank, a plurality of water absorbing cotton threads are arranged inside the water supply moving groove, the absorbing ends of the water absorbing cotton threads penetrate through the water supply moving groove and extend into the water tank, a pressing block is further arranged inside the water supply moving groove, the other side of the central shaft of the rolling ball (111) penetrates through the moving groove and extends into the water supply moving groove to be connected with the pressing block, and a pressing plate which is abutted to the pressing block is arranged inside the water supply moving groove, and limiting rods connected with the inner wall of the water supply movement groove are uniformly inserted in the two sides of the top end of the pressing plate in a penetrating manner.

As a preferable scheme of the processing technology and the processing equipment for the plastic pipe, the adjusting mechanism further comprises a pipe inner wall supporting and adjusting component for limiting the inner diameter of the pipe, the pipe inner wall supporting and adjusting component comprises a rotating cavity arranged in the lifting rod, the inner wall of one end of the rotating cavity is connected with a screw rod through an embedded bearing, the tail end of the screw rod penetrates through the rotating cavity and extends to the outer side of the lifting rod, the outer surface of the lifting rod is provided with a plurality of accommodating grooves communicated with the inner part of the rotating cavity, a diameter-fixing plate is movably arranged in the accommodating grooves, the outer surface of the screw rod is connected with a threaded sleeve through threads, the surface of the threaded sleeve is hinged with a telescopic connecting rod, and the tail end of the telescopic connecting rod is hinged with the diameter-fixing plate.

As a preferable scheme of the processing technology and the processing equipment for the plastic pipe, the adjusting mechanism further comprises a pipe inner wall temperature absorbing component for absorbing heat inside the pipe, the pipe inner wall temperature absorbing component comprises an air port inserted at the tail end of the lifting rod and extending into the rotating cavity, and the air delivery end of the air port is connected with a connecting pipe connected with an absorbing pump.

Compared with the prior art, the invention has the following beneficial effects:

before the plastic pipe blank is cooled by introducing water, the primary cooling device is matched with the air conveying mechanism to perform step-by-step pre-cooling treatment on the surface temperature of the pipe fitting, so that the internal temperature and the external temperature of the pipe fitting tend to be the same before the pipe fitting is cooled by introducing water, the phenomenon that the pipe fitting is damaged due to internal stress caused by the influence of temperature difference is reduced, and the qualified rate of the pipe fitting is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic diagram of the method steps of an embodiment of the present invention.

Fig. 2 is a schematic structural front sectional view according to an embodiment of the present invention.

FIG. 3 is a schematic top sectional view of a primary cooling apparatus according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a structure at a in fig. 3 according to an embodiment of the present invention.

Fig. 5 is an enlarged schematic view of the structures of the pipe inner wall support regulating member and the pipe inner wall temperature absorbing member in the embodiment of the present invention.

FIG. 6 is a schematic top sectional view of a lifter according to an embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

101. a cooling treatment box; 12. a wringing component;

110. a movable groove; 111. rolling a ball; 112. a water tank; 113. a gasket; 114. a water liquid circulating pipe;

120. a water supply movement groove; 121. a sponge; 122. a water outlet; 123. pressing a plate; 124. a limiting rod; 125. Pressing the block; 126. absorbent cotton threads;

2. a wind delivery mechanism; 201. an air box; 202. an air delivery opening; 203. a fan;

3. a water tank; 4. an adjustment mechanism;

41. a longitudinal adjustment member; 42. the inner wall of the pipe fitting supports the adjusting part; 43. a pipe inner wall temperature absorbing member;

410. a drive motor; 411. a lifting rod;

420. a rotation chamber; 421. a screw; 422. a threaded sleeve; 423. a receiving groove; 424. a sizing plate; 425. a telescopic connecting rod;

430. a gas port; 431. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1, the invention provides a plastic pipe processing technology, which comprises the following steps:

s1, conveying the proportioned raw materials into an extruder, and discharging through the extruder to obtain a plastic pipe blank;

s2, introducing the plastic pipe blank into a primary cooling device, absorbing the surface temperature of the plastic pipe blank, and adhering water liquid on the surface of the plastic pipe blank to obtain a primary cooling plastic pipe;

s3, air cooling the primary cooling plastic pipe to quickly evaporate water on the surface of the primary cooling plastic pipe to obtain a secondary cooling plastic pipe;

s4, introducing the recooled plastic pipe into water solution to finish cooling to obtain a molded plastic pipe;

and S5, cutting the formed plastic pipe according to the size of the plastic pipe required by the factory leaving to obtain the factory plastic pipe.

The primary cooling device and the air cooling device are matched with each other before the plastic pipe blank is cooled by introducing water liquid, so that the surface temperature of the pipe fitting is subjected to stepwise pre-cooling treatment, and the phenomenon that the surface of the pipe fitting is uneven due to the fact that the pipe fitting is directly introduced with water liquid and is subjected to strong temperature difference change to form internal stress and the quality of the plastic pipe is adversely affected is avoided.

In the step S2, the specific process of performing the preliminary cooling process on the preliminary cooling plastic tube includes:

s201, contacting the outer wall of the pipe fitting through a contact type heat absorption part, and absorbing heat on the outer wall of the pipe fitting;

s202, spraying water to the outer wall of the pipe fitting to enable water liquid to be adsorbed on the outer wall of the pipe fitting.

Step S2 in this embodiment, the sustainable and tubular product outer wall of contact heat-absorbing component is laminated mutually among the primary cooling device, absorbs the outer wall heat of pipe fitting to spray certain water liquid to the outer wall of pipe fitting, further absorb pipe fitting outer wall surface heat through the reservation of water liquid, make things convenient for the pipe fitting when S3 forced air cooling, the water liquid that the pipe fitting surface persists can receive wind-force to blow, flash evaporation, the cooling effect of reinforcing pipe fitting.

In step S201, the contact heat absorbing member contacts the outer wall of the pipe member while supporting the inner wall of the pipe member, and defines the inner diameter of the plastic pipe blank.

When the inner wall of the pipe fitting is supported, the inner wall of the pipe fitting is vacuumized and heated, so that the inner temperature and the outer temperature of the pipe fitting are approximately the same, and the temperature difference between the inner temperature and the outer temperature of the pipe blank is reduced.

Through when implementing S bellows 201, carry out directional support to the inside of pipe fitting, for tubular product provides certain confining force, avoid tubular product before for accomplishing the cooling, take place flagging phenomenon because of gravity, lead to tubular product to appear buckling, influence the processing effect of pipe fitting.

And through supporting the pipe fitting, through the mode of vacuum suction, can suck the heat that the inner wall position of pipe fitting is difficult to get rid of to realize that the big inside and outside temperature of pipe fitting approaches the same, reduce the inside and outside difference in temperature of pipe fitting, the effectual design effect that improves the pipe fitting.

The second embodiment is as follows:

as shown in figures 2 to 6, a plastic pipe processing device, a primary cooling device comprises a cooling treatment box 101 and a contact type heat absorbing part, the contact type heat absorbing part comprises rolling balls 111 arranged on the inner wall of the cooling treatment box 101 and a plurality of movable grooves 110 arranged on the inner wall of the cooling treatment box 101 and used for the rolling balls 111 to move, one side of the rolling ball 111 is inserted with a central shaft in a penetrating manner, one side of the central shaft is hinged to the inner wall of the movable groove 110, a water tank 112 communicated with the inside of the movable groove 110 is arranged in the wall of the cooling treatment box 101, one end of the rolling ball 111 extends to the inside of the water tank 112, the other end of the rolling ball 111 extends to the inside of the cooling treatment box 101, water liquid circulation pipes 114 used for conveying water liquid in the water tank 112 are arranged on two sides of the cooling treatment box 101, and sealing gaskets 113 used for sealing the inside of the movable groove 110 are arranged at two ends of the surface of the rolling ball 111.

When the pipe fitting is conveyed into the cooling treatment box 101, the rolling ball 111 can be attached to the outer wall surface of the pipe fitting to absorb heat of a part of the outer wall surface of the pipe fitting, and when the pipe fitting moves in the cooling treatment box 101, the rolling ball 111 can move along with the pipe fitting and roll in the movable groove 110, two ends of the rolling ball penetrate into the water tank 112 back and forth, absorbed heat is conducted into the water tank 112, and the heat absorbed by the rolling ball 111 is degraded through water liquid, so that the water tank 112 can continuously keep a lower temperature to absorb and conduct heat to the outer wall surface of the pipe fitting.

When the heat pipe is used, although the heat of the outer wall surface of the pipe fitting can be absorbed to a certain degree, the heat absorption is limited, and the cooling effect is poor.

In view of this, as shown in fig. 3 and fig. 4, the primary cooling device in this embodiment further includes a water squeezing component 12 for delivering water to the outer surface of the pipe, the water squeezing component 12 includes a water supply moving groove 120 disposed in the wall of the cooling treatment tank 101 and a sponge 121 disposed on the inner wall of the water supply moving groove 120, a water outlet 122 communicated with the inside of the cooling treatment tank 101 is disposed on the inner wall of the water supply moving groove 120, the bottom end of the sponge 121 is attached to the water inlet end of the water outlet 122, the water supply moving groove 120 is located below the water tank 112, a plurality of absorbent cotton threads 126 are disposed inside the water supply moving groove 120, the absorbent ends of the absorbent cotton threads 126 pass through the water supply moving groove 120 and extend into the water tank 112, a pressure block 125 is further disposed inside the water supply moving groove 120, the other side of the central axis of the rolling ball 111 passes through the moving groove 110 and extends into the water supply moving groove 120 to connect with the pressure block 125, the inside of feedwater motion groove 120 is provided with the clamp plate 123 inconsistent with pressure movable block 125, and the both sides on clamp plate 123 top are evenly run through and are inserted the gag lever post 124 that is equipped with and links to each other with feedwater motion groove 120 inner wall, and the surface cover of gag lever post 124 is equipped with the torsional spring, and the one end and the gag lever post 124 surface of torsional spring link to each other, and the other end and the clamp plate 123 of torsional spring link to each other.

When the pipe fitting is driven in the cooling treatment box 101, the rolling ball 111 rolls in the movable groove 110, the central shaft of the rolling ball 111 moves along with the rolling ball 111, the pressing block 125 is driven to rotate in the water supply moving groove 120, the pressing block 125 can intermittently abut against the pressing plate 123 in the water supply moving groove 120, when the pressing plate 123 receives abutting force, the pressing plate 123 moves downwards and extrudes the sponge 121, after the sponge 121 is stressed, certain water liquid is generated, the water liquid flows outwards through the water outlet 122 rapidly and flows to the surface of the pipe fitting, heat on the surface of the pipe fitting can be further absorbed, the cooling effect of the pipe fitting is enhanced, when the pressing plate 123 is abutted, the pressing plate 123 slides on the surface of the limiting rod 124 and pulls the torsion spring sleeved on the surface of the limiting rod to deform the torsion spring, when the pressing block 125 no longer abuts against the pressing plate 123, through resilience of the torsion spring, the pressing plate 123 is driven to reset automatically, the sponge 121 is not extruded, secondary operation is facilitated, the sponge 121 is not extruded and reset automatically, water liquid can be absorbed again in the water supply movement groove 120 through the water absorption cotton thread 126, and water liquid supplement is completed.

Meanwhile, as shown in fig. 2, an air delivery mechanism 2 for performing evaporative cooling on the pipe fitting and a water tank 3 arranged below the air delivery mechanism 2 and used for performing final shaping on the pipe fitting are arranged below the primary cooling device in the embodiment, the air delivery mechanism 2 comprises an air box 201, air delivery ports 202 are arranged on inner walls of two sides of the air box 201, a fan 203 is arranged inside the air delivery ports 202, the primary cooling device can introduce the pipe fitting into the air box 201 after completing primary cooling treatment on the outer surface of the pipe fitting, the fan 203 is opened, and wind power is blown into the air box 201 after the fan 203 is opened, so that the evaporation efficiency of water liquid reserved on the surface of the pipe fitting in the primary cooling treatment process is accelerated, the cooling effect on the surface of the pipe fitting is enhanced, and further the pipe fitting is subjected to cooling treatment.

In addition, as shown in fig. 2, in this embodiment, the water tank 3 is disposed below the air delivery mechanism 2 and used for performing final shaping on the pipe fitting, the adjusting mechanism 4 is disposed inside the water tank 3 and used for driving the pipe fitting, the adjusting mechanism 4 includes a longitudinal adjusting component 41 used for performing longitudinal displacement on the pipe fitting, the longitudinal adjusting component 41 includes a driving motor 410 disposed below the water tank 3 and a lifting rod 411 connected to an output end of the driving motor 410, and an output end of the lifting rod 411 vertically and upwardly penetrates through the water tank 3 and the air delivery mechanism 2 and extends to the inside of the primary cooling device.

Through the lifter 411 in vertical adjusting part 41, the pipe fitting is in letting in preliminary cooling treatment device, can encircle the surface of locating lifter 411, and then when carrying out cooling operation to the pipe fitting, with driving motor 410 external power supply, and open, make lifter 411 can drive the pipe fitting and carry out slow drive from cooling treatment case 101 in to water tank 3, effectually progressively cool off, final pipe fitting is in water tank 3, contact with water liquid, fully cool off, obtain final fashioned plastics pipe fitting.

Above-mentioned embodiment is when using, though can effectual carry out cooling treatment gradually to the pipe fitting outer wall, reduce the influence that the violent change in temperature produced plastic tubing self quality, but in the in-service use, the inner wall of pipe fitting still can have higher temperature, lead to the setting speed of pipe fitting internal face slower, make the inside shaping effect of pipe fitting not good, the pipe fitting receives the action of gravity easily, the fracture takes place, and if direct pipe fitting that has higher temperature with the inner wall lets in water liquid, also can make the inside comparatively strong temperature difference change that takes place of pipe fitting equally, increase the formation of pipe fitting internal stress, lead to pipe fitting product quality to descend.

In order to solve the above problem, as shown in fig. 2, fig. 5 and fig. 6, in this embodiment, the adjusting mechanism 4 further includes a pipe inner wall supporting and adjusting component 42 for limiting an inner diameter of the pipe, the pipe inner wall supporting and adjusting component 42 includes a rotating cavity 420 disposed in the lifting rod 411, a screw 421 is connected to an inner wall of one end of the rotating cavity 420 through an embedded bearing, a distal end of the screw 421 passes through the rotating cavity 420 and extends to an outer side of the lifting rod 411, a plurality of accommodating grooves 423 communicated with an inside of the rotating cavity 420 are disposed on an outer surface of the lifting rod 411, a diameter-fixing plate 424 is movably disposed inside the accommodating grooves 423, a threaded sleeve 422 is connected to an outer surface of the screw 421 through a thread, an expansion link 425 is hinged to a surface of the threaded sleeve 422, and a distal end of the expansion link 425 is hinged to the diameter-fixing plate 424.

Inside the pipe fitting lets in preliminary cooling device, when the cover was established at lifter 411 surface, the accessible was twisted screw 421, make screw 421 carry out rotation motion in the inside of rotating chamber 420, barrel 422 is mutually supported through the helicitic texture who sets up with screw 421, barrel 422 can be along with screw 421's rotation motion, slide downwards on the surface of screw 421, and promote sizing plate 424 through telescopic link 425, sizing plate 424 is outside extending inside holding groove 423 fast after the atress, until sizing plate 424 contacts with the inner wall of pipe fitting, provide corresponding holding power to the inner wall of pipe fitting, with this assist the injecing to the inner wall of pipe fitting, guarantee the plastic tubing can keep the form when supporting before the cooling design, be favorable to moulding and the sizing of plastic tubing.

Meanwhile, as shown in fig. 5, the adjusting mechanism 4 in this embodiment further includes a pipe inner wall temperature absorbing member 43 for absorbing heat inside the pipe, the pipe inner wall temperature absorbing member 43 includes an air port 430 inserted at the end of the lifting rod 411 and extending into the rotating chamber 420, and a connection pipe 431 connected to the absorption pump is connected to an air delivery end of the air port 430.

When the pipe fitting inner wall supports the adjusting part 42 and props up the pipe fitting inner wall and finalizes the design, can connect external aspirator pump with connecting pipe 431, inhale the inside of rotating chamber 420 fast through gas port 430, and then can in time absorb the high temperature heat in the pipe fitting inner wall for the inside cooling effect of pipe fitting, make the inside and outside temperature of pipe fitting approach the same, reduce the inside and outside temperature difference of pipe, improved the design effect of pipe fitting.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.