阅读说明：本技术 一种管材冷却定型装置 (Pipe cooling and shaping device ) 是由 王云 罗喜丰 岳智文 于 2020-12-10 设计创作，主要内容包括：本发明涉及一种管材冷却定型装置,包括旋转接头、旋转接头安装架、冷却水箱、冷却水箱支撑架以及动力电机；其综合了气液两种流体的降温效果和优点,通过结合高压气体与冷却液,并以旋转接头带动喷嘴,实现从多个方向、以较高的速度和动能将气液两相流体喷射到挤出管材的表面,热量渗透能力强,能快速地对管材内的高温进行热量快速交替,从而达到在高速生产时对挤出管材进行快速冷却定型的目的。(The invention relates to a pipe cooling and shaping device which comprises a rotary joint, a rotary joint mounting rack, a cooling water tank supporting frame and a power motor, wherein the rotary joint mounting rack is arranged on the rotary joint; the cooling effect and the advantage of two kinds of fluid of gas-liquid have been synthesized to it, through combining high-pressure gas and coolant liquid to drive the nozzle with rotary joint, realize from a plurality of directions, with higher speed and kinetic energy with the surface of gas-liquid two-phase flow body injection extrusion tubular product, heat infiltration ability is strong, can carry out the heat fast in turn to the high temperature in the tubular product fast, thereby reach and carry out the purpose of cooling off the design fast to extrusion tubular product when high-speed production.)

1. A pipe cooling and shaping device is characterized by comprising a rotary joint (1), a rotary joint mounting rack (2), a cooling water tank (3), a cooling water tank supporting rack (4) and a power motor (5); wherein:

the rotary joint (1) comprises a cylindrical joint inner cavity (11) and a rotary outer layer (12); the joint inner cavity (11) is formed in the rotary joint mounting frame (2), the rotary outer layer (12) is sleeved outside the joint inner cavity (11), and a bearing (13) is arranged between the rotary outer layer (12) and the joint inner cavity (11); the tubular hollow part of the joint inner cavity (11) is a pipe channel (111), and an inner cavity gas channel (112) and an inner cavity liquid channel (113) are arranged in the wall structure of the joint inner cavity (11); the rotating outer layer (12) is provided with an outer layer gas channel (121) for butting the inner cavity gas channel (112) and an outer layer liquid channel (122) for butting the inner cavity liquid channel (113);

the cooling water tank (3) is arranged on the cooling water tank support frame (4); the cooling water tank (3) comprises a water tank body (31), a pipeline fixing ring (32), a gas pipeline (33), a liquid pipeline (34) and a nozzle (35); the pipeline fixing ring (32), the gas pipeline (33), the liquid pipeline (34) and the nozzle (35) are arranged in the water tank body (31); the circle center of the pipeline fixing ring (32) and the axis of the pipe channel (111) are positioned on the same straight line; the gas pipeline (33) penetrates through the pipeline fixing ring (32) and is connected with the outer layer gas channel (121); the liquid pipeline (34) penetrates through the pipeline fixing ring (32) and is connected with the outer layer liquid channel (122); the nozzle (35) is arranged on the pipeline fixing ring (32), the gas inlet end of the nozzle (35) is connected with the gas pipeline (33), and the liquid inlet end of the nozzle (35) is connected with the liquid pipeline (34);

the power motor is arranged on the water tank body (31), and the power motor (5) is in transmission connection with the rotating outer layer (12).

2. The pipe cooling and shaping device according to claim 1, wherein a support roller (36) is arranged between the pipe fixing ring (32) and the water tank body (31).

3. The pipe cooling and shaping device according to claim 1, wherein the outlet end of the water tank body (31) is further provided with a pipe water removing ring (37).

4. The pipe cooling and shaping device according to claim 1, wherein a water tank water filtering pipeline (38) is arranged at the bottom of the water tank body (31).

5. The pipe cooling and shaping device according to claim 1, wherein the power motor (5) and the rotating outer layer (12) are in gear transmission.

6. The pipe cooling and sizing device as claimed in claim 1, wherein the bearing (13) is a self-aligning ball bearing.

7. The pipe cooling and shaping device according to claim 1, wherein a bearing retainer ring (14) is arranged between the bearings (13).

8. The pipe cooling and shaping device according to claim 1, wherein the bearing (13) is fixed by a bearing clamp spring (15).

9. The pipe cooling and shaping device according to claim 1, wherein a shaft sealing ring (16) is further arranged between the rotating outer layer (12) and the joint inner cavity (11).

10. The pipe cooling and shaping device according to claim 1, wherein graphene (17) is further arranged between the rotating outer layer (12) and the joint inner cavity (11).

Technical Field

The invention relates to the technical field of pipe production equipment, in particular to the field of cooling and shaping in extruded pipe production, and more particularly relates to a pipe cooling and shaping device.

Background

The cooling and forming link of the pipe is an important link in the production of the pipe, the cooling and forming effect is good, and the production efficiency can be ensured. In the production process of the pipe, the outer wall of the pipe extruded with the pipe is cooled and shaped, and the current common cooling modes are spray cooling and soaking cooling; the two methods can cool the pipe, but the permeation efficiency of the cooling liquid is low, and the heat can not be quickly alternated to the high temperature in the pipe. Whether the cooling liquid can fully exert the effective cooling function or not is an important factor of the strong and weak permeability of the cooling liquid. The conventional immersion type cooling liquid is permeated by heat in the pipe cooling process, the permeation efficiency of the heat generated by immersion is low, and the efficiency is lower in high-speed production.

The application publication date is 2018.08.14, and the application publication number is CN 108394082A Chinese patent: the patent discloses a polyethylene pipe extrusion cooling device, which is characterized in that the surface of a polyethylene pipe is cooled by light mist water, meanwhile, the influence on the surface quality of the pipe caused by large acting force of cooling water on the pipe is avoided, and cold air is used for cooling the pipe outside spraying. However, the patent or similar patents which atomize the cooling liquid to cool the pipe still have obvious limitations in the aspect of giving full play to the characteristics of two fluids, namely gas and liquid, and the high-speed production of the pipe is difficult to realize effectively.

Disclosure of Invention

The invention provides a pipe cooling and shaping device, which aims to solve the technical problem that a flared part of a thin-walled pipe is easy to be flared to cause waste in the production process of a straight-flared pipe in the prior art.

In order to realize the purpose, the technical scheme is as follows:

a pipe cooling and shaping device comprises a rotary joint, a rotary joint mounting rack, a cooling water tank supporting frame and a power motor; wherein:

the rotary joint comprises a cylindrical joint inner cavity and a rotary outer layer; the joint inner cavity is arranged on the rotary joint mounting frame, the rotary outer layer is sleeved outside the joint inner cavity, and a bearing is arranged between the rotary outer layer and the joint inner cavity; the cylindrical hollow part of the joint inner cavity is a pipe channel, and an inner cavity gas channel and an inner cavity liquid channel are arranged in the cylinder wall structure of the joint inner cavity; the rotating outer layer is provided with an outer layer gas channel for butting the inner cavity gas channel and an outer layer liquid channel for butting the inner cavity liquid channel;

the cooling water tank is arranged on the cooling water tank support frame; the cooling water tank comprises a water tank body, a pipeline fixing ring, a gas pipeline, a liquid pipeline and a nozzle; the pipeline fixing ring, the gas pipeline, the liquid pipeline and the nozzle are arranged in the water tank body; the circle center of the pipeline fixing ring and the axis of the pipe channel are positioned on the same straight line; the gas pipeline penetrates through the pipeline fixing ring and is connected with the outer layer gas channel; the liquid pipeline penetrates through the pipeline fixing ring and is connected with the outer layer liquid channel; the nozzle is arranged on the pipeline fixing ring, the air inlet end of the nozzle is connected with the gas pipeline, and the liquid inlet end of the nozzle is connected with the liquid pipeline;

the power motor is arranged in the water tank body and is in transmission connection with the rotating outer layer.

Compared with the prior art, the pipe cooling and shaping device provided by the invention integrates the cooling effect and the advantages of two fluids, namely gas and liquid, and the high-pressure gas and the cooling liquid are combined, and the rotary joint drives the nozzle, so that the gas and liquid two-phase fluid is sprayed onto the surface of the extruded pipe from multiple directions at higher speed and kinetic energy, the heat permeability is strong, the heat can be quickly alternated for high temperature in the pipe, and the purpose of quickly cooling and shaping the extruded pipe in high-speed production is achieved.

As a preferred scheme, a supporting roller is arranged between the pipeline fixing ring and the water tank body.

Through the arrangement, the pipeline fixing ring can be better supported and can rotate more smoothly.

As a preferable scheme, the outlet end of the water tank body is also provided with a pipe water removing ring.

Through the setting, can will extrude the water stain clearance on tubular product surface after accomplishing the cooling design, simultaneously, tubular product dewatering ring can also hold to a certain extent and extrude tubular product, makes it keep in the positive center that can but the water tank.

As a preferred scheme, a water tank water filtering pipeline is arranged at the bottom of the water tank body.

Preferably, the power motor and the rotating outer layer are in gear transmission.

As an alternative, the bearing is a self-aligning ball bearing.

Preferably, a bearing retainer ring is arranged between the bearings.

As a preferred scheme, the bearing is fixed through a bearing snap spring.

Preferably, a shaft sealing ring is further arranged between the rotating outer layer and the joint inner cavity.

The sealing ring for the shaft can separate and seal each region between the rotating outer layer and the joint inner cavity.

As a preferable scheme, graphene is further arranged between the rotating outer layer and the joint inner cavity.

The graphene can lubricate the contact surface between the rotating outer layer and the joint inner cavity for a long time, and the rotating outer layer can normally rotate.

Drawings

FIG. 1 is a schematic view of a cooling and shaping apparatus for pipes according to the present invention;

FIG. 2 is a schematic view of the connection of the rotary joint of the present invention to a cooling water tank;

FIG. 3 is a side perspective view of the cooling and shaping device for pipes provided by the present invention;

FIG. 4 is a schematic cross-sectional view of a cooling water tank provided by the present invention;

FIG. 5 is a side perspective view of a rotary union provided by the present invention;

FIG. 6 is a schematic view of the inlet end of a rotary union provided by the present invention;

FIG. 7 is a schematic view of the outlet end of a rotary union provided in accordance with the present invention;

description of reference numerals: 1. a rotary joint; 11. a connector inner cavity; 111. a tubing channel; 112. an inner cavity gas channel; 113. an inner cavity liquid channel; 12. rotating the outer layer; 121. an outer layer gas passage; 122. an outer layer liquid passage; 13. a bearing; 14. a bearing retainer ring; 15. a bearing snap spring; 16. a seal ring for a shaft; 17. graphene; 2. a swivel mounting bracket; 3. a cooling water tank; 31. a water tank body; 32. a pipeline fixing ring; 33. a gas conduit; 34. a liquid conduit; 35. a nozzle; 36. supporting the rollers; 37. a pipe water removing ring; 38. a water tank water filtering pipeline; 4. a cooling water tank support frame; 5. a power motor.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

it should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The invention is further illustrated below with reference to the figures and examples.

The invention is further illustrated below with reference to the figures and examples.

Aiming at the existing physiological signal acquisition process, the invention provides the following scheme:

referring to fig. 1 to 7, a pipe cooling and shaping device includes a rotary joint 1, a rotary joint mounting rack 2, a cooling water tank 3, a cooling water tank support frame 4 and a power motor 5; wherein:

the rotary joint 1 comprises a cylindrical joint inner cavity 11 and a rotary outer layer 12; the joint inner cavity 11 is arranged on the rotary joint mounting frame 2, the rotary outer layer 12 is sleeved outside the joint inner cavity 11, and a bearing 13 is arranged between the rotary outer layer 12 and the joint inner cavity 11; the tubular hollow part of the joint inner cavity 11 is a pipe passage 111, and an inner cavity gas passage 112 and an inner cavity liquid passage 113 are arranged in the wall structure of the joint inner cavity 11; the rotating outer layer 12 is provided with an outer layer gas channel 121 for butting against the inner cavity gas channel 112 and an outer layer liquid channel 122 for butting against the inner cavity liquid channel 113;

the cooling water tank 3 is arranged on the cooling water tank support frame 4; the cooling water tank 3 comprises a tank body 31, a pipe fixing ring 32, a gas pipe 33, a liquid pipe 34 and a nozzle 35; the pipeline fixing ring 32, the gas pipeline 33, the liquid pipeline 34 and the nozzle 35 are arranged in the water tank body 31; the circle center of the pipeline fixing ring 32 and the axis of the pipe channel 111 are positioned on the same straight line; the gas pipeline 33 is arranged in the pipeline fixing ring 32 in a penetrating way and connected with the outer layer gas channel 121; the liquid pipeline 34 is arranged through the pipeline fixing ring 32 and connected with the outer layer liquid channel 122; the nozzle 35 is arranged on the pipeline fixing ring 32, the gas inlet end of the nozzle 35 is connected with the gas pipeline 33, and the liquid inlet end of the nozzle 35 is connected with the liquid pipeline 34;

the power motor is arranged on the water tank body 31, and the power motor 5 is in transmission connection with the rotating outer layer 12.

Compared with the prior art, the pipe cooling and shaping device provided by the invention integrates the cooling effect and the advantages of two fluids, namely gas and liquid, and the high-pressure gas and the cooling liquid are combined, and the rotary joint drives the nozzle, so that the gas and liquid two-phase fluid is sprayed onto the surface of the extruded pipe from multiple directions at higher speed and kinetic energy, the heat permeability is strong, the heat can be quickly alternated for high temperature in the pipe, and the purpose of quickly cooling and shaping the extruded pipe in high-speed production is achieved.

Specifically, in the process that the extrusion pipeline 70 enters the cooling water tank 3 through the joint inner cavity 11 of the rotary joint 1, the power motor 5 drives the rotary outer layer 12 to rotate, and the rotary outer layer 12 drives the pipeline fixing ring 32, the gas pipeline 33, the liquid pipeline 34 and the nozzle 35 in the cooling water tank 3 to make circular motion around the extrusion pipeline 70;

the inner cavity gas channel 112 and the inner cavity liquid channel 113 are respectively connected with an external gas inlet pipeline 50 and an external liquid inlet pipeline 60 to input high-pressure gas and cooling liquid; during the rotation of the rotating outer layer 12, high-pressure gas and cooling liquid can enter the gas pipe 33 and the liquid pipe 34 in the cooling water tank 3 when the outer layer gas passage 121 and the outer layer liquid passage 122 distributed in the inner cavity gas passage 112 and the inner cavity liquid passage 113 are butted to the rotating outer layer 12, respectively; the high-pressure gas and the cooling liquid are merged in the nozzle 35 and then are sprayed from the nozzle 35 to the extrusion pipe 70; the extruded pipe 70 exits from the outlet end of the cooling water tank 3 after the cooling setting is completed in the cooling water tank 3.

The size of the trace amount of liquid in the gas-liquid two-phase jet flow is very small, and the outer wall of the pipe with higher temperature is very easy to vaporize, so that the extruded pipe 70 is subjected to heat penetration from multiple directions. Although the amount of liquid in the jet is small, the vaporized portion is more than that in the immersion cooling, and thus the cooling effect is better. The cooling process of the high-pressure spraying area of the pipe is the heat transfer process between the solid and the fluid. Due to the attraction between the fluid and the solid molecules and the action of the viscosity of the fluid, a fluid viscous layer is formed on the surface of the solid, so that the thermal resistance is increased. The thicker the stagnant layer, the greater the thermal resistance, and the thickness of the stagnant layer depends mainly on the fluidity, i.e., viscosity, of the fluid. The cooling effect of the fluid with low viscosity is better than that of the fluid with high viscosity. When the gas-liquid two-phase fluid is sprayed out, the volume expands suddenly to do work externally, the internal energy is consumed, and the temperature of the cooling liquid can be reduced. The two-phase fluid has higher speed in spray cooling, can take away a large amount of heat, and further enhances the cooling effect.

As an alternative embodiment, the joint inner cavity 11 may be fixed to the rotary joint mounting frame 2 by bolts through mounting holes a; the nozzle 35 may be fixed to the pipe fixing ring 32 by a nut.

In a preferred embodiment, a support roller 36 is disposed between the pipe fixing ring 32 and the tank body 31.

Through the arrangement, the pipeline fixing ring can be better supported and can rotate more smoothly.

As an alternative embodiment, each pipe fixing ring 32 is defined by four support rollers 36 welded to the tank body 31.

In a preferred embodiment, the outlet end of the tank body 31 is further provided with a pipe water removing ring 37.

Through the setting, can will extrude the water stain clearance on tubular product surface after accomplishing the cooling design, simultaneously, tubular product dewatering ring 37 can also hold extrusion tubular product 70 to a certain extent, makes it keep in the exact center that can but the water tank.

In a preferred embodiment, a water tank filter pipe 38 is arranged at the bottom of the water tank body 31.

The tank filtered water pipe 38 can discharge the coolant accumulated in the tank body 31.

In a preferred embodiment, the power motor 5 and the rotating outer layer 12 are in gear transmission.

In a preferred embodiment, the bearing 13 is a self-aligning ball bearing.

As a preferred embodiment, a bearing retainer 14 is provided between the bearings 13.

As a preferred embodiment, the bearing 13 is fixed by a bearing snap spring 15.

In a preferred embodiment, a shaft seal ring 16 is further disposed between the rotating outer layer 12 and the joint inner cavity 11.

The sealing ring for the shaft can separate and seal each region between the rotating outer layer and the joint inner cavity.

As a preferred embodiment, a graphene 17 is further disposed between the rotating outer layer 12 and the joint inner cavity 11.

The graphene can lubricate the contact surface between the rotating outer layer and the joint inner cavity for a long time, and the rotating outer layer can normally rotate.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.