A cooling device for plastic product processing

Abstract

The present invention relates to the technical field of plastic product cooling, and discloses a cooling device for plastic product processing, including an extruder and a compression pipe at one end of the extruder. The compression pipe includes a main housing, an air inlet chamber, a compression chamber, and a release chamber. The cross-sectional structure of the main housing is a symmetric conical structure. An air inlet chamber is provided at one end of the main housing, and a compression chamber located inside the main housing is provided at one end of the main housing. A release chamber located inside the main housing is provided at one end of the air inlet chamber. A wind box is fixedly installed on one side of the main housing, and a heat conduction pipe is provided inside the main housing. The heat conduction pipe includes an outer isolation pipe, an inner isolation pipe, a diversion pipe, and a diversion channel. The outer isolation pipe is provided at one end inside the main housing. Through the action of the heat exchange rack, and through the second return pipe, the coolant is sent into the interior of the coolant rack again for heat volatilization, and the coolant operation is carried out again, realizing the function of recycling the coolant.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic product cooling, and specifically relates to a cooling device for plastic product processing. Background Technique

[0002] The cooling process of plastic products is a crucial link in the injection molding process, directly affecting product quality, production efficiency, and production cost. In this process, a series of design principles and control measures need to be followed to ensure that plastic products can be cooled evenly and effectively.

[0003] For existing plastic product cooling devices, when cooling plastic parts inside a pipe, the pipe is usually placed in a pool filled with liquid. However, this operation method is rather troublesome, which may cause deformation of the plastic parts, affecting production quality. Moreover, it is difficult to achieve uniform synchronous cooling inside the plastic pipe fittings, easily causing internal and external temperature differences and affecting product quality. Summary of the Invention

[0004] The present invention provides a cooling device for plastic product processing, which has the beneficial effect of synchronous cooling, and solves the problems mentioned in the above background technique. For existing plastic product cooling devices, when cooling plastic parts inside a pipe, the pipe is usually placed in a pool filled with liquid. However, this operation method is rather troublesome, which may cause deformation of the plastic parts, affecting production quality. Moreover, it is difficult to achieve uniform synchronous cooling inside the plastic pipe fittings, easily causing internal and external temperature differences and affecting product quality.

[0005] The present invention provides the following technical solution: A cooling device for plastic product processing, including an extruder and a compression pipe at one end of the extruder. The compression pipe includes a main housing, an air inlet chamber, a compression chamber, and a release chamber. The cross-sectional structure of the main housing is a symmetric conical structure. An air inlet chamber is provided at one end of the main housing, a compression chamber located inside the main housing is provided at one end of the main housing, a release chamber located inside the main housing is provided at the other end of the main housing, and an air box is fixedly installed on one side of the main housing;

[0006] A heat conduction pipe is provided inside the main housing. The heat conduction pipe includes an outer isolation pipe, an inner isolation pipe, a diversion elbow pipe, and a diversion channel. An outer isolation pipe is provided at one end inside the main housing. An inner isolation pipe is provided inside the outer isolation pipe. A diversion elbow pipe is provided on the outer surface of the inner isolation pipe. An annular cavity is provided between the inner isolation pipe and the diversion elbow pipe. The annular cavity is the diversion channel, and the diversion channel is used for diverting coolant. The diversion channel is in a closed state under normal conditions;

[0007] One end of the extruder is equipped with an extrusion end, which includes an extrusion outer ring, a shaping cavity, a limiting inner shaft, and a liquid inlet cavity. The outer surface of one end of the extruder is fixedly installed with the extrusion outer ring. The limiting inner shaft is fixedly installed inside the extrusion outer ring. The liquid inlet cavity is provided inside the limiting inner shaft. The shaping cavity is provided inside the extrusion outer ring, and the limiting inner shaft is also installed inside the shaping cavity.

[0008] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: One end of the limiting inner shaft extends into the outer isolation tube, and an annular cavity is formed between the outer isolation tube and the limiting inner shaft. A plastic tube is installed inside the annular cavity. One end of the limiting inner shaft is fixedly installed with a spiral frame;

[0009] A cooling cavity is provided between the outer surface of the plastic tube and the outer surface of the inner isolation tube. The coolant is used to flow into the cooling cavity and contact the outer surface of the plastic tube;

[0010] The heat conduction tube further includes a sealing ring and a diversion rubber ring. A sealing ring that is hermetically fitted to the inner wall of the inner isolation tube is installed inside the outer isolation tube. Notches are arranged inside the sealing ring. The sealing ring is used to provide the opening and closing functions of the coolant;

[0011] A heat exchange frame is installed outside the outer isolation tube. The heat exchange frame includes a coolant frame, an outer ring cavity, an inner ring cavity, a diversion cone tube, an inner conical hole, and a second return pipe. The outer surface of the outer isolation tube is provided with the coolant frame, and the coolant frame includes a cooling outer ring and a cooling inner ring;

[0012] The inner ring cavity is provided inside the cooling inner ring, and the outer ring cavity is provided inside the cooling outer ring;

[0013] The cooling inner ring and the outer side of the outer isolation tube are integrally provided. The cooling outer ring and the inner wall of the main housing are integrally provided. Diversion cone tubes are arranged between the cooling inner ring and the cooling outer ring. The inner conical hole is provided inside the diversion cone tube. The diversion cone tube is used to connect the inner ring cavity and the outer ring cavity in a communicating state;

[0014] One side of the inner ring cavity is communicated with the diversion channel. One end of the diversion elbow is integrally provided with the cooling inner ring;

[0015] The second return pipe is fixedly installed on the upper surface of the cooling outer ring. A return groove is provided on the lower surface of one end of the inner isolation tube. The other end of the second return pipe is connected to the lower surface of the return groove. A first pump body is installed outside the return groove;

[0016] The diversion rubber ring is installed on the lower surface of the sealing ring. The diversion rubber ring is used to prevent the coolant from directly impacting the outer surface of the plastic tube;

[0017] A sealing bottom ring is fixedly installed on the inner wall of one end of the inner isolation pipe, and the outer surface of the plastic pipe is in sliding sealing connection with the inner wall of the sealing bottom ring.

[0018] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: guide frames are arranged on the inner wall of the inner isolation pipe, the guide frames include a first water guide plate and a second water guide plate, and a number of groups of the first water guide plate and the second water guide plate are arranged on the inner wall of the inner isolation pipe. The first water guide plate and the second water guide plate are each a single group, and each group of the first water guide plate and the second water guide plate are arranged in sequence on the inner wall of the inner isolation pipe;

[0019] Shaft pins are arranged at one ends of the upper surfaces of the first water guide plate and the second water guide plate. The ends of the first water guide plate and the second water guide plate where the shaft pins are arranged are the head ends, and the other ends are the tail ends. After the first water guide plate and the second water guide plate are respectively rotated to the limit positions, the head ends and the tail ends are in contact.

[0020] One ends of the first water guide plate and the second water guide plate are rotationally connected to the inner wall of the inner isolation pipe, and one end of the first water guide plate of each group is in contact with one end of the second water guide plate of each group.

[0021] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: the guide frame further includes a positioning groove, a connecting rod, a pull rod, a movable rod and a protective cover. Positioning grooves are arranged on the upper surfaces of the first water guide plate and the second water guide plate. A connecting rod is movably installed on the upper surface of the positioning groove. One end of the connecting rod is movably connected to a movable rod, and one end of the movable rod is movably connected to a pull rod. Each connecting rod is rotationally connected to the positioning groove. The connecting rod is used to form a linkage state of each first water guide plate, and the first water guide plate and the second water guide plate have the same structure;

[0022] A protective cover is fixedly installed at the bottom end of the first water guide plate, and support springs are also arranged at the bottom end of the first water guide plate. A soft rubber bottom pad is fixedly installed at the bottom end of the support spring. The soft rubber bottom pad is used to be in contact with the outer surface of the plastic pipe.

[0023] A rubber contact edge is fixedly installed at one end of the first water guide plate. Elastic support rods are arranged inside the rubber contact edge. An arc groove is arranged at one end of the rubber contact edge. The arc groove is used to make the head and tail ends of the first water guide plate and the second water guide plate in contact;

[0024] The materials of the rubber contact edge and the soft rubber bottom pad are both soft rubber materials.

[0025] As an alternative solution for the cooling device used in the processing of plastic products of the present invention, wherein: a power adjustment mechanism is also arranged in a circular array inside the outer isolation tube. The power adjustment mechanism includes a movable cavity, a piston rod, a storage cavity, and a return spring. A movable cavity is arranged inside the outer isolation tube. A piston rod is slidably installed inside the movable cavity. One end of the piston rod is fixedly installed with a sealing ring;

[0026] A pressure cavity is arranged between the outer side of the piston rod and the inside of the movable cavity. A storage cavity located inside the outer isolation tube is also arranged at the lower end of the movable cavity. One side of the storage cavity is communicated with the pressure cavity. A return spring is fixedly installed inside one end of the piston rod. The inside of the storage cavity is filled with mercury.

[0027] As an alternative solution for the cooling device used in the processing of plastic products of the present invention, wherein: a diversion pipe is fixedly installed at one end of the spiral frame. Expansion and contraction frames are arranged in an array on the outer side of the diversion pipe;

[0028] The expansion and contraction frame includes a support ring, side rings, spray boxes, flat spray holes, through grooves, and telescopic shaft tubes. Support rings are symmetrically installed on the outer side of the diversion pipe. Side rings are slidably installed at both ends of the two support rings. Spray boxes are arranged on the outer sides of the side rings and the support rings. The interiors of the support ring, side rings, and spray boxes are all hollow structures;

[0029] One side of the spray box is provided with flat spray holes. Through grooves are arranged on the inner sides of the support ring and the side rings. The through grooves are used to communicate the inner sides of the spray boxes with the support ring and the side rings respectively.

[0030] As an alternative solution for the cooling device used in the processing of plastic products of the present invention, wherein: a heat exchange ring is arranged on the upper surface of the main housing outside the compression cavity. Spiral fins are arranged inside the heat exchange ring. The spiral fins are used to form a spiral cavity inside the heat exchange ring. One end of the spiral cavity is provided with a first return pipe located on the upper surface of the heat exchange ring. The other end of the spiral cavity is connected to the other end of the first return pipe. Heat conduction fins are arranged on the inner wall of the heat exchange ring inside the air inlet cavity. The heat conduction fins are arranged horizontally and are annularly arrayed on the inner wall of the heat exchange ring. The inside of the spiral cavity is filled with a coolant;

[0031] A radiator is fixedly installed below the main housing. A second pump body is installed on one side of the radiator. The first return pipe is used to connect the radiator, the second pump body, and the heat exchange ring;

[0032] External heat conduction pipes are also arranged in an array inside the heat exchange ring. Heat exchange fins are arranged inside the external heat conduction pipes. A manifold is arranged at one end of the external heat conduction pipe. A liquid inlet pipe is installed on one side of the manifold. The liquid inlet pipe includes a thin pipe section and a thick pipe section. The thick pipe sections are symmetrically arranged at one end of the thin pipe section. The thick pipe sections are connected to one end of the air box.

[0033] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: the extrusion end further includes a connector and an outer connecting pipe. One end of the limiting inner shaft is provided with a connector, one end of the connector is fixedly installed with a spiral frame, and an outer connecting pipe is arranged on one side of the limiting inner shaft.

[0034] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: the spiral frame includes a connecting pipe, a rotating ring and a spiral pipe. One end of the connector is fixedly installed with a connecting pipe, and one end of the connecting pipe is used for sleeving on the outer surface of the connector;

[0035] The rotating ring is rotatably installed on the outer side of the connecting pipe, and spiral pipes are symmetrically installed on the outer side of the rotating ring.

[0036] As an alternative solution of the cooling device for plastic product processing according to the present invention, wherein: the spiral frame further includes a combined pipe sleeve, a sealing strip and a sealing ring. One end of the connecting pipe is fixedly installed with a combined pipe sleeve, the combined pipe sleeve is symmetrically installed with sealing strips, the sealing strips are used for sealing and installing the combined pipe sleeve at one end of the connecting pipe, the combined pipe sleeve is used for connecting the two connecting pipes end to end, and a sealing ring is fixedly installed on the outer side of the connector.

[0037] The present invention has the following beneficial effects:

[0038] 1. For the cooling device for plastic product processing, the device uses a diversion channel to introduce the coolant onto the outer surface of the plastic pipe. While flowing on the outer surface of the plastic pipe, it cools the plastic pipe. At the same time, when the water liquid is flowing, through the power adjustment mechanism, the temperature conducted by the plastic pipe inside is sensed. The higher the temperature, the larger the flipping angle. The larger the angle, the more it tends to be in a vertical state, and the slower the guiding of the coolant flow becomes. Thus, it realizes the ability to change the flipping angles of the first water guiding plate and the second water guiding plate according to the magnitude of the temperature, and change the residence time of the coolant on the outer surface of the plastic pipe.

[0039] 2. For the cooling device for plastic product processing, through the action of the heat exchange frame, and through the second return pipe, the coolant is sent back into the interior of the coolant frame again for heat volatilization, and the coolant operation is carried out again, realizing the function of recycling the coolant;

[0040] When air passes from the interior of the intake cavity through the interior of the compression cavity, when the air enters the compression cavity from the intake cavity, the air pressure increases, the density increases, and the heat conduction coefficient with the small hole wall increases. Due to the heat dissipation of the small hole wall, the temperature directly dissipated here by the device is conducted to the interior of the heat exchange ring. After the air enters the release cavity and is released, the temperature will be further reduced, increasing the cooling effect of the device on the air. After the temperature is further reduced, the cooling effect on the release cavity is more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of the whole invention.

[0042] Figure 2 This is a schematic side view of the whole invention.

[0043] Figure 3 This is a schematic diagram of the internal structure of the main housing of the present invention.

[0044] Figure 4 This is a schematic diagram of the heat conduction tube structure of the present invention.

[0045] Figure 5 This is a schematic diagram of the structure of the first water guide plate of the present invention.

[0046] Figure 6 This is a schematic diagram of the combined structure of the outer isolation tube and the coolant rack of the present invention.

[0047] Figure 7 This is the present invention Figure 6 Local schematic diagrams at position B.

[0048] Figure 8 This is the present invention Figure 3 Local schematic diagrams at position A.

[0049] Figure 9 This is a schematic diagram of the expansion and contraction rack structure of the present invention.

[0050] Figure 10 This is a schematic diagram of the internal structure of the extrusion outer ring of the present invention.

[0051] Figure 11 This is the present invention Figure 3 Local schematic diagrams at position A.

[0052] In the figure: 1. Extruder; 2. Compression tube; 21. Main housing; 22. Intake chamber; 23. Compression chamber; 24. Release chamber;

[0053] 3. Heat exchange rack; 31. Coolant rack; 32. Outer ring cavity; 33. Inner ring cavity; 34. Flow guiding conical tube; 35. Inner conical hole; 36. Second return pipe; 37. Return groove; 38. First pump body;

[0054] 4. Heat conduction tube; 41. Outer isolation tube; 42. Inner isolation tube; 43. Flow guiding elbow; 44. Flow guiding channel; 45. Sealing ring; 47. Flow guiding rubber ring;

[0055] 5. Flow guide frame; 50. Rubber contact edge; 51. First water guide plate; 52. Second water guide plate; 53. Positioning groove; 54. Connecting rod; 55. Pull rod; 56. Movable rod; 57. Protective cover; 58. Soft rubber bottom pad; 59. Support spring; 60. Sealing bottom ring

[0056] 6. Power adjustment mechanism; 61. Movable cavity; 62. Piston rod; 63. Storage cavity; 64. Return spring

[0057] 7. Expansion and contraction frame; 71. Support ring; 72. Side ring; 73. Spray box; 74. Flat spray hole; 75. Through groove; 76. Telescopic shaft tube

[0058] 8. Extrusion end; 81. Extrusion outer ring; 82. Shaping cavity; 83. Limit inner shaft; 84. Connector; 85. Outer connecting pipe; 86. Liquid inlet cavity

[0059] 9. Spiral frame; 91. Connecting pipe; 92. Rotating ring; 93. Spiral pipe; 94. Combined pipe sleeve; 95. Sealing rubber strip; 96. Sealing rubber ring

[0060] 11. Plastic pipe; 12. Elastic support rod; 14. Flow guide pipe; 15. Heat exchange ring; 16. Spiral fin; 17. External heat conduction pipe; 18. Manifold; 19. Liquid inlet pipe; 201. Radiator; 20. First return pipe; 202. Second pump body; 20. First return pipe

[0061] 301. Air box Detailed implementation manners

[0062] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0063] Example 1, please refer to Figures 1 - 11 , wherein a cooling device for plastic product processing includes an extruder 1 and a compression pipe 2 at one end of the extruder 1. The compression pipe 2 includes a main housing 21, an air inlet cavity 22, a compression cavity 23, and a release cavity 24. The cross-sectional structure of the main housing 21 is a symmetric conical structure. An air inlet cavity 22 is provided at one end of the main housing 21, a compression cavity 23 located inside the main housing 21 is provided at one end of the main housing 21, a release cavity 24 located inside the main housing 21 is provided at the other end of the main housing 21, and an air box 301 is fixedly installed on one side of the main housing 21;

[0064] Inside the main housing 21, there is a heat conduction tube 4. The heat conduction tube 4 includes an outer isolation tube 41, an inner isolation tube 42, a diversion elbow 43, and a diversion channel 44. At one end inside the main housing 21, there is an outer isolation tube 41. Inside the outer isolation tube 41, there is an inner isolation tube 42. On the outer surface of the inner isolation tube 42, there is a diversion elbow 43. Between the inner isolation tube 42 and the diversion elbow 43, there is an annular cavity, and the annular cavity is the diversion channel 44. The diversion channel 44 is used to divert the coolant, and the diversion channel 44 is in a closed state under normal conditions;

[0065] At one end of the extruder 1, there is an extrusion end 8. The extrusion end 8 includes an extrusion outer ring 81, a shaping cavity 82, a limiting inner shaft 83, and a liquid inlet cavity 86. On the outer surface of one end of the extruder 1, there is a fixed extrusion outer ring 81. Inside the extrusion outer ring 81, there is a fixed limiting inner shaft 83. Inside the limiting inner shaft 83, there is a liquid inlet cavity 86. Inside the extrusion outer ring 81, there is a shaping cavity 82, and inside the shaping cavity 82, there is also a limiting inner shaft 83 installed;

[0066] One end of the limiting inner shaft 83 extends into the outer isolation tube 41. An annular cavity is formed between the outer isolation tube 41 and the limiting inner shaft 83. Inside the annular cavity, there is a plastic tube 11. One end of the limiting inner shaft 83 is fixedly installed with a spiral frame 9;

[0067] Between the outer surface of the plastic tube 11 and the outer surface of the inner isolation tube 42, there is a cooling cavity. The coolant is used to flow into the cooling cavity and contact the outer surface of the plastic tube 11;

[0068] The heat conduction tube 4 further includes a sealing ring 45 and a diversion rubber ring 47. Inside the outer isolation tube 41, there is a sealing ring 45 that is hermetically fitted to the inner wall of the inner isolation tube 42. Inside the sealing ring 45, there are arranged notches. The sealing ring 45 is used to provide the opening and closing function of the coolant;

[0069] On the outside of the outer isolation tube 41, there is a heat exchange frame 3. The heat exchange frame 3 includes a coolant frame 31, an outer ring cavity 32, an inner ring cavity 33, a diversion cone tube 34, an inner cone hole 35, and a second return pipe 36. On the outer surface of the outer isolation tube 41, there is a coolant frame 31. The coolant frame 31 includes a cooling outer ring and a cooling inner ring;

[0070] Inside the cooling inner ring, there is an inner ring cavity 33. Inside the cooling outer ring, there is an outer ring cavity 32;

[0071] The cooling inner ring and the outside of the outer isolation tube 41 are integrally arranged. The cooling outer ring and the inner wall of the main housing 21 are integrally arranged. Between the cooling inner ring and the cooling outer ring, there are arranged diversion cone tubes 34. Inside the diversion cone tubes 34, there are inner cone holes 35. The diversion cone tubes 34 are used to connect the inner ring cavity 33 and the outer ring cavity 32 in a communicating state;

[0072] One side of the inner cavity 33 is communicated with the diversion channel 44, and one end of the diversion elbow 43 is integrally arranged with one side of the inner cooling ring;

[0073] The upper surface of the outer cooling ring is fixedly installed with a second return pipe 36. A return groove 37 is arranged on the lower surface of one end of the inner isolation pipe 42. The other end of the second return pipe 36 is connected to the lower surface of the return groove 37, and a first pump body 38 is installed outside the return groove 37;

[0074] A diversion rubber ring 47 is installed on the lower surface of the sealing ring 45, and the diversion rubber ring 47 is used to prevent the coolant from directly impacting the outer surface of the plastic pipe 11;

[0075] A sealing bottom ring 60 is fixedly installed on the inner wall of one end of the inner isolation pipe 42, and the outer surface of the plastic pipe 11 is in sliding seal connection with the inner wall of the sealing bottom ring 60;

[0076] Diversion brackets 5 are arranged on the inner wall of the inner isolation pipe 42. The diversion bracket 5 includes a first water guide plate 51 and a second water guide plate 52. A number of groups of the first water guide plate 51 and the second water guide plate 52 are arranged on the inner wall of the inner isolation pipe 42. The first water guide plate 51 and the second water guide plate 52 are each a separate group, and each group of the first water guide plate 51 and the second water guide plate 52 are arranged in sequence on the inner wall of the inner isolation pipe 42;

[0077] One end of the upper surface of the first water guide plate 51 and the second water guide plate 52 is provided with a shaft pin. The end of the first water guide plate 51 and the second water guide plate 52 with the shaft pin is the head end, and the other end is the tail end. After the first water guide plate 51 and the second water guide plate 52 are respectively rotated to the limit position, the head end and the tail end are fitted;

[0078] One end of each of the first water guide plate 51 and the second water guide plate 52 is rotationally connected to the inner wall of the inner isolation pipe 42, and one end of the first water guide plate 51 of each group is fitted with one end of the second water guide plate 52 of each group;

[0079] The diversion bracket 5 further includes a positioning groove 53, a connecting rod 54, a pull rod 55, a movable rod 56 and a protective cover 57. Positioning grooves 53 are arranged on the upper surfaces of the first water guide plate 51 and the second water guide plate 52. A connecting rod 54 is movably installed on the upper surface of the positioning groove 53. One end of the connecting rod 54 is movably connected to a movable rod 56, and one end of the movable rod 56 is movably connected to a pull rod 55. Each connecting rod 54 is rotationally connected to the positioning groove 53. The connecting rod 54 is used to form a linkage state for each first water guide plate 51, and the first water guide plate 51 and the second water guide plate 52 have the same structure;

[0080] A protective cover 57 is fixedly installed at the bottom end of the first water guide plate 51. Supporting springs 59 are also arranged at the bottom end of the first water guide plate 51. A soft rubber bottom pad 58 is fixedly installed at the bottom end of the supporting spring 59, and the soft rubber bottom pad 58 is used to fit with the outer surface of the plastic pipe 11;

[0081] One end of the first water guide plate 51 is fixedly installed with a rubber contact edge 50. Elastic support rods 12 are arranged inside the rubber contact edge 50. One end of the rubber contact edge 50 is provided with an arc groove for fitting the head and tail ends of the first water guide plate 51 and the second water guide plate 52 together.

[0082] Both the rubber contact edge 50 and the soft rubber bottom pad 58 are made of soft rubber material.

[0083] A power adjustment mechanism 6 is also arranged in a circular pattern inside the inner isolation tube 42. The power adjustment mechanism 6 includes a movable cavity 61, a piston rod 62, a storage cavity 63, and a return spring 64. The movable cavity 61 is provided inside the outer isolation tube 41. The piston rod 62 is slidably installed inside the movable cavity 61. One end of the piston rod 62 is fixedly installed with a sealing ring 45.

[0084] A pressure cavity is arranged between the outer side of the piston rod 62 and the inside of the movable cavity 61. The lower end of the movable cavity 61 is also provided with a storage cavity 63 located inside the outer isolation tube 41. One side of the storage cavity 63 is communicated with the pressure cavity. A return spring 64 is fixedly installed inside one end of the piston rod 62. The storage cavity 63 is filled with mercury.

[0085] During use, the plastic tube 11 flows out along the annular cavity between the outer isolation tube 41 and the limiting inner shaft 83 and forms a cylindrical structure. When the plastic tube 11 passes through the outer surface of the limiting inner shaft 83, it will transfer its own heat to the inside of the limiting inner shaft 83. The liquid inlet cavity 86 is filled with a coolant to absorb the heat, and the heat is transferred from one end of the limiting inner shaft 83 and sprayed out inside the spiral frame 9, and then transferred to the inside of the diversion tube 14 by the spiral frame 9. Then, the diversion tube 14 sprays the coolant on the inner wall of the plastic tube 11 through the expansion and contraction frame 7. The internal space of the liquid inlet cavity 86 is small, and when the coolant flows, less heat is absorbed, which can only provide the forming conditions for the plastic tube 11. Through the subsequent spiral frame 9 and the expansion and contraction frame 7, the coolant is directly sprayed on the inner wall of the plastic tube 11 for direct heat exchange by direct contact.

[0086] The working principle of the heat exchange frame 3: According to Figure 3 、 Figure 4 and Figure 5As shown, the coolant flows along the inside of the guide channel 44 into the space between the inner isolation tube 42 and the outer surface of the plastic tube 11, so that the coolant directly contacts the outer surface of the plastic tube 11 and extracts the heat of the plastic tube 11 itself. At this time, the coolant continues to flow, and through the sealing of the sealing bottom ring 60, the coolant flows to the inside of the reflux groove 37. The first pump body 38 provides power, and the coolant is then extracted by the second reflux pipe 36 and transported to the outer ring cavity 32. Through the communication state between the outer ring cavity 32 and the inner ring cavity 33, the coolant flows into the inner ring cavity 33 through the inside of the guide cone 34. While flowing, the heat in the coolant will be transferred to the guide cone 34 itself and cooled, and finally flows into the inside of the guide channel 44, thereby completing the reuse of the coolant and the effect of circulating cooling.

[0087] Working principle of the power regulating mechanism 6: When the plastic tube 11 passes through the outer surface of the limiting inner shaft 83 and the inner wall of the outer isolation tube 41, the heat will be transferred to the storage chamber 63 at the same time. The storage chamber 63 is filled with mercury. Due to the heat expansion characteristics of mercury, the space on the outer surface of the piston rod 62 will be increased. Figure 7 As shown, the piston rod 62 is pushed out to the left side of the figure, and the other end of the piston rod 62 is connected to the flow guide 44. When the piston rod 62 moves, the sealing ring 45 is driven to move to the left side at the same time, so that the sealing ring 45 releases the sealing state of the lower surface of the inner isolation tube 42. At this time, the cooled coolant flows into it and directly contacts the outer surface of the plastic tube 11 to perform heat exchange operation. The function of this structure is to use the temperature of the plastic tube 11 to determine whether to start the water cooling operation of the plastic tube 11. If the temperature of the plastic tube 11 itself is low, it does not need to be turned on, thereby realizing the use of the temperature provided by the plastic tube 11 itself as the control condition for opening, so that it can be automatically opened according to the temperature;

[0088] Working principle of heat pipe 4: According to Figure 4 and Figure 7 As shown, when the coolant passes through the guide channel 44 and enters between the outer surface of the plastic tube 11 and the inner wall of the inner isolation tube 42, it will first contact the upper surface of the guide rubber ring 47 and be introduced to the upper surface of the plastic tube 11 by the guide rubber ring 47. The function of the guide rubber ring 47 is to buffer the impact force of the coolant entering. After the coolant enters the outer surface of the plastic tube 11, it fills the space between the inner wall of the inner isolation tube 42 and the outer surface of the plastic tube 11. When the coolant passes through, the first water guide plate 51 and the second water guide plate 52 are placed in an inclined state, which will provide a guiding effect for the coolant and slow down the flow rate of the coolant to a certain extent, so that it stays here for a longer time, and the heat exchange time is longer, which is conducive to more thorough heat conduction between the coolant and the plastic tube 11 and facilitates the removal of heat.

[0089] Working principle of guide frame 5:Figure 4 As shown, through the action of the piston rod 62, the sealing ring 45 can be pulled. The sealing ring 45 is fixedly connected to the pull rod 55. At the same time, the pull rod 55 is driven by the sealing ring 45 to pull the connecting rod 54 to the left side in the figure, so that one end of the first water guide plate 51 and the second water guide plate 52 flips along with the connecting rod 54. While the first water guide plate 51 and the second water guide plate 52 are flipping, each first water guide plate 51 and the second water guide plate 52 are respectively arranged to form a group, and each group of the first water guide plate 51 and the second water guide plate 52 are arranged and installed in sequence. When the first water guide plate 51 reaches the flipping limit position of the first one in a group, its tail end position will fit with the head end of the second second water guide plate 52 in the second water guide plate 52 group, forming a head-to-tail connection state, so that a plurality of first water guide plates 51 and second water guide plates 52 are combined to form a strip-shaped plate similar to a spiral shape and surround the outer surface of the plastic pipe 11. When the coolant passes through, the coolant is guided by the strip-shaped plate, so that the coolant also flows around the outer surface of the plastic pipe 11 in a similar spiral shape. Through its similar spiral flow track, the time of the coolant on the outer surface of the plastic pipe 11 is maximized, greatly increasing the contact time between the coolant and the plastic pipe 11 and improving the heat conduction temperature. Moreover, the flipping angle of the first water guide plate 51 and the second water guide plate 52 is related to the temperature transmitted by the plastic pipe 11 inside the power adjustment mechanism 6. The higher the temperature, the larger the flipping angle. The larger the angle, the more it tends to be in a vertical state, and the slower the guiding of the coolant is. Thus, it can be realized that the flipping angle of the first water guide plate 51 and the second water guide plate 52 can be changed according to the size of the temperature, so as to change the residence time of the coolant on the outer surface of the plastic pipe 11;

[0090] Working principle of the flow guide frame 5: The plastic pipe 11 is of a circular structure. When the first water guide plate 51 and the second water guide plate 52 are connected head to tail, the first water guide plate 51 and the second water guide plate 52 are not at the same angle, which will cause the connection part of the two not to be in a parallel state and cannot completely coincide. Through the flexible structure of the rubber contact edge 50 and the rigid support of the elastic support rod 12, one end of the elastic support rod 12 is movably connected to the first water guide plate 51 and can change its own shape along with the contact part to connect the fitting state of the two. Moreover, the soft rubber bottom pad 58 can also be completely fitted to the outer surface of the plastic pipe 11 according to the flipping of the first water guide plate 51 to achieve a closed state;

[0091] Working principle of the heat exchange rack 3: During the flowing process, wind power is provided for the interior of the main housing 21 through the air box 301. Through the continuous flow of the wind power, when passing through the interior of the compression chamber 23 from the interior of the intake chamber 22, the air will be compressed. When the air is compressed, the air enters the compression chamber 23 from the intake chamber 22, similar to a large hole passing through a small hole, which reduces the air temperature. This is the prior art and will not be elaborated here. Through the continuous flow of the air and flowing into the interior of the release chamber 24, at this time, the air with reduced temperature will absorb the heat inside the release chamber 24 when passing between the two release chambers 24, causing the temperature of the coolant inside the release chamber 24 to decrease accordingly. Finally, it is discharged from the interior of the device, completing the coolant treatment of the release chamber 24 and the coolant inside it.

[0092] Embodiment 2 is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figures 1 - 11 , one end of the spiral rack 9 is fixedly installed with a diversion pipe 14, and expansion and contraction racks 7 are arranged on the outer side of the diversion pipe 14;

[0093] The expansion and contraction rack 7 includes a support ring 71, side rings 72, spray boxes 73, flat spray holes 74, through grooves 75 and telescopic shaft pipes 76. Support rings 71 are symmetrically installed on the outer side of the diversion pipe 14. Side rings 72 are slidably installed at both ends of the two support rings 71. Spray boxes 73 are provided on the outer sides of the side rings 72 and the support rings 71. The interiors of the support ring 71, side rings 72 and spray boxes 73 are all hollow structures;

[0094] One side of the spray box 73 is provided with flat spray holes 74. Through grooves 75 are provided on the inner sides of the support ring 71 and the side rings 72. The through grooves 75 are used to communicate the inner sides of the spray box 73 with the support ring 71 and the side rings 72 respectively.

[0095] Telescopic shaft pipes 76 are also symmetrically provided on the outer surface of the diversion pipe 14. The top ends of the telescopic shaft pipes 76 are used to communicate with the interior of the support ring 71. The support ring 71 and the side rings 72 are in a sliding seal state.

[0096] Coolant is provided to the spiral frame 9 through the limited inner shaft 83, and the coolant is transferred into the diversion pipe 14. At this time, the coolant passes through the inside of the diversion pipe 14 and is then transferred to the inside of the support ring 71 through the telescopic shaft pipe 76. Then, it is transferred to the inside of the two side rings 72 by the support ring 71 and sprayed out through the flat spray holes 74. Moreover, the spray box 73 is inclined, so that the spraying direction is at an inclined angle and sprays on the inner wall of the plastic pipe 11. And the support ring 71 and the side ring 72 can realize the expansion and contraction adjustment of the diameter. When the flow rate of the transported liquid exceeds the spraying speed of the flat spray holes 74, the excess liquid will form a pressure on the support ring 71 and the side ring 72 and drive the support ring 71 and the side ring 72 to expand outwards until the outer surface of the flat spray holes 74 touches the inner wall of the plastic pipe 11. At this time, the water flow pressure of the sprayed water and the expansion power cancel each other out, and the support ring 71 and the side ring 72 can be maintained in the current state. The design of this structure can ensure that the support ring 71 and the side ring 72 can automatically adjust their own diameters according to the diameter of the plastic pipe 11.

[0097] Embodiment 3. This embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figures 1 - 11 , on the outer side of the compression cavity 23, there is a heat exchange ring 15 located on the upper surface of the main housing 21. Inside the heat exchange ring 15, there are spiral fins 16. The spiral fins 16 are used to form a spiral cavity inside the heat exchange ring 15. One end of the spiral cavity is provided with a first return pipe 20 located on the upper surface of the heat exchange ring 15, and the other end of the spiral cavity is connected to the other end of the first return pipe 20. On the inner wall of the heat exchange ring 15, there are heat conduction fins located inside the air intake cavity 22, and the heat conduction fins are arranged horizontally and annularly arrayed on the inner wall of the heat exchange ring 15. The inside of the spiral cavity is filled with coolant;

[0098] A radiator 201 is fixedly installed below the main housing 21. A second pump body 202 is installed on one side of the radiator 201. The first return pipe 20 is used to connect the radiator 201, the second pump body 202 and the heat exchange ring 15;

[0099] There are also external heat conduction pipes 17 arranged inside the heat exchange ring 15. Inside the external heat conduction pipes 17, there are heat exchange fins. One end of the external heat conduction pipe 17 is provided with a manifold 18. A liquid inlet pipe 19 is installed on one side of the manifold 18. The liquid inlet pipe 19 includes a thin pipe section and a thick pipe section. The thick pipe sections are symmetrically arranged at one end of the thin pipe section, and the thick pipe sections are connected to one end of the air box 301.

[0100] Internal working principle of the heat exchange ring 15: When air passes through the inside of the compression chamber 23 from the inside of the air inlet chamber 22, the air will be compressed. When the air is compressed, the air enters the compression chamber 23 from the air inlet chamber 22, similar to passing through a small hole from a large hole, which reduces the air temperature; when the air enters the inside of the compression chamber 23, it will contact the heat dissipation fins and be introduced into the spiral fins 16 through the heat dissipation fins. The heat in the spiral cavity is exported by the coolant in the spiral cavity. At this time, the second pump body 202 drives the coolant into the spiral cavity, pushes the previous coolant out, and flows into the inside of the radiator 201. The heat inside the coolant is volatilized through the radiator 201 and then sent back into the spiral cavity again, realizing the function of circulating cooling for the spiral fins 16. The air box 301 is connected to the thick pipe section and provides external air flow for cooling the liquid inlet pipe 19. The heat inside the heat exchange ring 15 is taken out synchronously through the air flow entering the inside of the external heat conduction pipe 17, completing the multiple cooling effects inside the heat exchange ring 15;

[0101] The temperature of the heat dissipation here is directly transmitted to the inside of the heat exchange ring 15 through the device. After the air enters the release chamber 24 and is released, the temperature will be further reduced, increasing the cooling effect of the device on the air. After the temperature is further reduced, the cooling effect on the release chamber 24 is more significant.

[0102] Embodiment 4 is an improvement made on the basis of Embodiment 3. Specifically, please refer to Figures 1 - 11 , the extrusion end 8 further includes a connector 84 and an external connecting pipe 85. One end of the limiting inner shaft 83 is provided with a connector 84, and a spiral frame 9 is fixedly installed at one end of the connector 84. An external connecting pipe 85 is provided on one side of the limiting inner shaft 83;

[0103] The spiral frame 9 includes a connecting pipe 91, a rotating ring 92 and a spiral pipe 93. One end of the connector 84 is fixedly installed with a connecting pipe 91, and one end of the connecting pipe 91 is used to sleeved on the outer surface of the connector 84;

[0104] The rotating ring 92 is rotatably installed on the outside of the connecting pipe 91, and the spiral pipes 93 are symmetrically installed on the outside of the rotating ring 92;

[0105] The spiral frame 9 further includes a combined pipe sleeve 94, a sealing strip 95 and a sealing ring 96. One end of the connecting pipe 91 is fixedly installed with a combined pipe sleeve 94. The combined pipe sleeve 94 is symmetrically installed with sealing strips 95. The sealing strips 95 are used to seal and install the combined pipe sleeve 94 at one end of the connecting pipe 91. The combined pipe sleeve 94 is used to connect the two connecting pipes 91 end to end. A sealing ring 96 is fixedly installed on the outside of the connector 84.

[0106] Working principle of the spiral frame 9: During use, one end of the connecting pipe 91 is sleeved on one end of the connecting head 84, and the sealing rubber ring 96 is embedded inside the connecting pipe 91 to form a sealed and fixed state. In the same way, the combined pipe sleeve 94 is embedded in the other end of the connecting pipe 91. Through the action of the combined pipe sleeve 94, multiple connecting pipes 91 can be combined and joined. The connecting length of the plastic pipe 11 can be adjusted according to the length of the plastic pipe 11 on site. A sealing plug is installed at the end of the frontmost connecting pipe 91 to limit the gas to only flow out from the spiral pipe 93;

[0107] The limiting inner shaft 83 provides a fixing condition for the connecting pipe 91, and the connecting pipe 91 is communicated with the spiral pipe 93. According to the spiral structure of the spiral pipe 93, when the spiral pipe 93 conveys liquid, a lateral thrust will be formed. Through the lateral thrust, a rotating force can be provided to the rotating ring 92, so that while the spiral pipe 93 sprays liquid, it rotates synchronously, so that the sprayed cooling liquid can form a spiral state. In the spiral mode, the cooling liquid will form a spiral-shaped circulating flow and diverge along one end direction inside the plastic pipe 11. The cooling liquid sprayed in the spiral mode can achieve a relatively uniform heat dissipation effect, so that the inside of the plastic pipe 11 can have a cooling effect and be used in combination with the cooling method of the above-mentioned heat-conducting pipe 4 to form a cooling effect both inside and outside the plastic pipe 11.

[0108] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0109] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A cooling device for processing plastic products, comprising an extruder and a compression tube at one end of the extruder, characterized in that: The compression tube includes a main shell, an air inlet chamber, a compression chamber and a release chamber. The cross-sectional structure of the main shell is a symmetrical conical structure. An air inlet chamber is provided at one end of the main shell, a compression chamber located inside the main shell is provided at one end of the main shell, and a release chamber located inside the main shell is provided at the other end of the main shell. A bellows is fixedly installed on one side of the main shell. A heat conducting pipe is arranged inside the main shell, and the heat conducting pipe includes an outer isolating pipe, an inner isolating pipe, a flow guiding elbow and a flow guiding channel. An outer isolating pipe is arranged at one end inside the main shell, an inner isolating pipe is arranged inside the outer isolating pipe, a flow guiding elbow is arranged on the outer surface of the inner isolating pipe, an annular cavity is arranged between the inner isolating pipe and the flow guiding elbow, and the annular cavity is the flow guiding channel, which is used to guide the coolant, and the flow guiding channel is normally in a closed state; An extrusion end is installed at one end of the extruder, and the extrusion end includes an extrusion outer ring, a shaping cavity, a limiting inner shaft and a liquid inlet cavity. An extrusion outer ring is fixedly installed on the outer surface of one end of the extruder, and a limiting inner shaft is fixedly installed inside the extrusion outer ring. A liquid inlet cavity is arranged inside the limiting inner shaft, and a shaping cavity is arranged inside the extrusion outer ring. A limiting inner shaft is also installed inside the shaping cavity. Several groups of first water guide plates and second water guide plates are arranged on the inner wall of the inner isolation tube. A shaft pin is provided at one end of the upper surface of the first water guide plate and the second water guide plate. After the first water guide plate and the second water guide plate are rotated to the extreme position, the head end and the tail end are fitted together. The end of the first water guide plate and the second water guide plate where the shaft pin is provided is the head end, and the other end is the tail end. The upper surfaces of the first water guide plate and the second water guide plate are both provided with positioning grooves, and a connecting rod is movably installed on the upper surface of the positioning groove, one end of the connecting rod is movably connected to a movable rod, and one end of the movable rod is movably connected to a pull rod; An active cavity is arranged inside the outer isolation tube, a piston rod is slidably installed inside the active cavity, a storage cavity located inside the outer isolation tube is arranged at the lower end of the active cavity, and mercury is filled inside the storage cavity.

2. The cooling device for plastic product processing according to claim 1, characterized in that: One end of the limiting inner shaft extends into the outer isolation tube, an annular cavity is formed between the outer isolation tube and the limiting inner shaft, a plastic tube is installed inside the annular cavity, and a spiral frame is fixedly installed at one end of the limiting inner shaft; A cooling cavity is provided between the outer surface of the plastic tube and the outer surface of the inner isolation tube, and the coolant is used to be directed into the cooling cavity and contact the outer surface of the plastic tube; The heat conducting pipe also includes a sealing ring and a flow guiding rubber ring. A sealing ring is installed inside the outer isolation pipe and is sealed against the inner wall of the inner isolation pipe. Notches are arranged inside the sealing ring. The sealing ring is used to provide the opening and closing function of the coolant. A heat exchange frame is installed on the outside of the outer isolation tube, and the heat exchange frame includes a coolant frame, an outer ring cavity, an inner ring cavity, a guide cone, an inner cone hole and a second return pipe. A coolant frame is provided on the outer surface of the outer isolation tube, and the coolant frame includes a cooling outer ring and a cooling inner ring; An inner ring cavity is provided inside the cooling inner ring, and an outer ring cavity is provided inside the cooling outer ring; The cooling inner ring is integrally arranged with the outer side of the outer isolation tube, the cooling outer ring is integrally arranged with the inner wall of the main shell, a guide cone is arranged between the cooling inner ring and the cooling outer ring, an inner cone hole is arranged inside the guide cone, and the guide cone is used to connect the inner ring cavity with the outer ring cavity; One side of the inner ring cavity is connected to the flow guide channel, and one end of the flow guide elbow is integrally arranged with the cooling inner ring; A second reflux pipe is fixedly installed on the upper surface of the cooling outer ring, a reflux groove is provided on the lower surface of one end of the inner isolation pipe, the other end of the second reflux pipe is connected to the lower surface of the reflux groove, and a first pump body is installed on the outer side of the reflux groove; A guide rubber ring is installed on the lower surface of the sealing ring, and the guide rubber ring is used to prevent the coolant from directly impacting the outer surface of the plastic pipe; A sealing bottom ring is fixedly installed on the inner wall of one end of the inner isolation tube, and the outer surface of the plastic tube is connected to the inner wall of the sealing bottom ring in a sliding sealing manner.

3. The cooling device for plastic product processing according to claim 2, characterized in that: The inner wall of the inner isolation tube is arranged with a guide frame, which includes a first water guide plate and a second water guide plate. The first water guide plate and the second water guide plate are each a separate group, and each group of the first water guide plate and the second water guide plate are sequentially arranged on the inner wall of the inner isolation tube; One end of the first water guide plate and the second water guide plate are both connected to the inner wall of the inner isolation tube by rotation, and one end of each group of first first water guide plates is fitted with one end of each group of second second water guide plates.

4. The cooling device for processing plastic products according to claim 3, characterized in that: The guide frame also includes a positioning groove, a connecting rod, a pull rod, a movable rod and a protective cover. Each connecting rod is rotatably connected to the positioning groove. The connecting rod is used to form a linkage state between each first water guide plate. The first water guide plate has the same structure as the second water guide plate. A protective cover is fixedly installed at the bottom end of the first water guide plate, a support spring is also arranged at the bottom end of the first water guide plate, and a soft rubber bottom pad is fixedly installed at the bottom end of the support spring, and the soft rubber bottom pad is used to fit the outer surface of the plastic pipe; A rubber contact edge is fixedly installed at one end of the first water guide plate, elastic support rods are arranged inside the rubber contact edge, and an arc groove is provided at one end of the rubber contact edge, and the arc groove is used to fit the first water guide plate and the second water guide plate at the head and tail ends; The materials of the rubber contact edge and the soft rubber bottom pad are both soft rubber.

5. The cooling device for processing plastic products according to claim 4, characterized in that: The inner part of the outer isolation tube is also provided with a power regulating mechanism arranged in a ring shape, the power regulating mechanism comprising a movable chamber, a piston rod, a storage chamber and a return spring, and one end of the piston rod is fixedly mounted with a sealing ring; A pressure chamber is arranged between the outer side of the piston rod and the inside of the movable chamber, one side of the storage chamber is communicated with the pressure chamber, and a return spring is fixedly installed inside one end of the piston rod.

6. The cooling device for plastic product processing according to claim 5, characterized in that: A guide tube is fixedly installed at one end of the spiral frame, and an expansion and contraction frame is arranged on the outside of the guide tube; The expansion and contraction frame includes a support ring, a side ring, a spray box, a flat spray hole, a through groove and a telescopic shaft tube. The support ring is symmetrically installed on the outside of the guide tube. The two ends of the two support rings are slidably installed with side rings. The side rings and the outside of the support rings are provided with spray boxes. The inside of the support ring, the side ring and the spray box are all hollow structures. A flat spray hole is arranged on one side of the spray box, and through grooves are arranged on the inner sides of the support ring and the side ring, and the through grooves are used to connect the inner side of the spray box with the support ring and the side ring respectively.

7. The cooling device for processing plastic products according to claim 6, characterized in that: A heat exchange ring located on the upper surface of the main shell is arranged outside the compression chamber, and a spiral sheet is arranged inside the heat exchange ring, and the spiral sheet is used to form a spiral cavity inside the heat exchange ring, and a first return pipe located on the upper surface of the heat exchange ring is installed at one end of the spiral cavity, and the other end of the spiral cavity is connected to the other end of the first return pipe, and a heat conduction fin located inside the air inlet cavity is arranged on the inner wall of the heat exchange ring, and the heat conduction fin is arranged horizontally and arranged in a ring array on the inner wall of the heat exchange ring, and the interior of the spiral cavity is filled with cooling liquid; A radiator is fixedly installed below the main shell, a second pump body is installed on one side of the radiator, and a first return pipe is used to connect the radiator, the second pump body and the heat exchange ring; An external heat conduction pipe is arranged inside the heat exchange ring, a heat exchange plate is arranged inside the external heat conduction pipe, a collecting pipe is arranged at one end of the external heat conduction pipe, a liquid inlet pipe is installed on one side of the collecting pipe, the liquid inlet pipe includes a thin pipe section and a thick pipe section, the thick pipe section is symmetrically arranged at one end of the thin pipe section, and the thick pipe section is connected to one end of the bellows.

8. The cooling device for processing plastic products according to claim 7, characterized in that: The extrusion end also includes a connector and an external tube. One end of the limiting inner shaft is provided with a connector, one end of the connector is fixedly mounted with a spiral frame, and one side of the limiting inner shaft is provided with an external tube.

9. The cooling device for plastic product processing according to claim 8, characterized in that: The spiral frame includes a connecting pipe, a rotating ring and a spiral pipe. The connecting pipe is fixedly installed at one end of the connecting head, and one end of the connecting pipe is used to be sleeved on the outer surface of the connecting head; A rotating ring is rotatably installed on the outer side of the connecting pipe, and a rotating pipe is symmetrically installed on the outer side of the rotating ring.

10. The cooling device for plastic product processing according to claim 9, characterized in that: The spiral frame also includes a combined pipe sleeve, a sealing strip and a sealing ring. The combined pipe sleeve is fixedly installed on one end of the connecting pipe, and the combined pipe sleeve is symmetrically installed with sealing strips. The sealing strip is used to seal the combined pipe sleeve on one end of the connecting pipe. The combined pipe sleeve is used to connect the two connecting pipes end to end, and a sealing ring is fixedly installed on the outside of the connecting head.

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