Cooling device for plastic product processing

Abstract

The invention relates to the technical field of plastic product cooling, and discloses a cooling device for plastic product processing, the cooling device comprises an extruding machine and a compression pipe at one end of the extruding machine, the compression pipe comprises a main shell, an air inlet cavity, a compression cavity and a release cavity, the section structure of the main shell is a symmetrical conical structure, the air inlet cavity is arranged at one end of the main shell, and the release cavity is arranged at the other end of the main shell. A compression cavity located in the main shell is formed in one end of the main shell, a release cavity located in the main shell is formed in one end of the air inlet cavity, an air bellow is fixedly installed on one side of the main shell, and a heat conduction pipe is arranged in the main shell and comprises an outer isolation pipe, an inner isolation pipe, a flow guide pipe and a flow guide channel. And an outer isolation pipe is arranged at one end in the main shell. Through the action of the heat exchange frame, the cooling liquid is fed into the cooling liquid frame again through the second backflow pipe for heat volatilization, cooling liquid operation is conducted again, and the recycling function of the cooling liquid is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product cooling, in particular to a cooling device for plastic product processing. Background Art

[0002] The cooling process of plastic products is a crucial link in the injection molding process, which directly affects 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] Existing plastic product cooling devices usually place the pipe body in a pool filled with water when cooling the plastic parts in the pipe body. However, this operation method is relatively cumbersome and will cause deformation of the plastic parts, affecting production quality. In addition, it is difficult to perform uniform and synchronous cooling on the inside of the plastic pipe, which easily causes a temperature difference between the inside and the outside, affecting product quality. Summary of the invention

[0004] The present invention provides a cooling device for processing plastic products, which has the beneficial effect of synchronous cooling and solves the problem of the existing plastic product cooling device mentioned in the above background technology. When cooling the plastic parts in the pipe body, the pipe body is usually placed in a pool of water filled with water. However, this operation method is more cumbersome and will cause deformation of the plastic parts, affecting the production quality. In addition, it is difficult to perform uniform synchronous cooling on the inside of the plastic pipe fitting, which easily causes a temperature difference between the inside and the outside, affecting the product quality.

[0005] The present invention provides the following technical solution: a cooling device for processing plastic products, comprising an extruder and a compression tube at one end of the extruder, the compression tube comprising a main shell, an air inlet cavity, a compression cavity and a release cavity, the cross-sectional structure of the main shell being a symmetrical conical structure, an air inlet cavity being provided at one end of the main shell, a compression cavity located in the main shell being provided at one end of the main shell, a release cavity located in the main shell being provided at one end of the air inlet cavity, and a bellows being fixedly installed at one side of the main shell; A heat conduction pipe is provided inside the main shell, and the heat conduction pipe includes an outer isolation pipe, an inner isolation pipe, a flow guide elbow and a flow guide channel. An outer isolation pipe is provided at one end inside the main shell, an inner isolation pipe is provided inside the outer isolation pipe, a flow guide elbow is provided on the outer surface of the inner isolation pipe, an annular cavity is provided between the inner isolation pipe and the flow guide elbow, the annular cavity is a flow guide channel, the flow guide channel is used to guide the coolant, and the flow guide 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. The outer surface of one end of the extruder is fixedly installed with an extrusion outer ring, the interior of the extrusion outer ring is fixedly installed with a limiting inner shaft, the interior of the limiting inner shaft is provided with a liquid inlet cavity, the interior of the extrusion outer ring is provided with a shaping cavity, and the interior of the shaping cavity is also provided with a limiting inner shaft.

[0006] As an optional solution of the cooling device for plastic product processing of the present invention, 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 flow 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. The outer isolation pipe is provided with a sealing ring which is sealed against the inner wall of the inner isolation pipe. The sealing ring is provided with notches. The sealing ring is used to open and close the cooling liquid. A heat exchange frame is installed on the outside of the outer isolation tube, and the heat exchange frame includes a cooling liquid frame, an outer ring cavity, an inner ring cavity, a guide cone, an inner cone hole and a second return pipe. The outer surface of the outer isolation tube is provided with a cooling liquid frame, and the cooling liquid frame includes a cooling outer ring and a cooling inner ring; The inner ring of the cooling inner ring is provided with an inner ring cavity, and the inner ring of the cooling outer ring is provided with an outer ring cavity; The cooling inner ring is integrally provided with the outer side of the outer isolation tube, the cooling outer ring is integrally provided 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 provided 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 in communication with 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 mounted on the upper surface of the cooling outer ring, a reflux groove is disposed 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 mounted 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.

[0007] As an optional solution of the cooling device for processing plastic products of the present invention, wherein: the inner wall of the inner isolation tube is arranged with a guide frame, the guide frame includes a first water guide plate and a second water guide plate, the inner wall of the inner isolation tube is arranged with a plurality of groups of first water guide plates and second water guide plates, the first water guide plates and the second water guide plates are each a separate group, and each group of the first water guide plates and the second water guide plates are sequentially 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, the end of the first water guide plate and the second water guide plate provided with the shaft pin is the head end, and the other end is the tail end, and the head end and the tail end are fitted together after the first water guide plate and the second water guide plate are rotated to the extreme position respectively; 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 the first first water guide plate in each group is fitted with one end of the second second water guide plate in each group.

[0008] As an optional solution of the cooling device for processing plastic products of 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, the upper surfaces of the first water guide plate and the second water guide plate are both provided with a positioning groove, a connecting rod is movably installed on the upper surface of the positioning groove, one end of the connecting rod is movably connected to the movable rod, one end of the movable rod is movably connected to the pull rod, each of the connecting rods is rotatably connected to the positioning groove, the connecting rod is used to form each first water guide plate into a linkage state, and the first water guide plate and the second water guide plate have the same structure; 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, a soft rubber base pad is fixedly installed at the bottom end of the support spring, and the soft rubber base pad is used to fit with the outer surface of the plastic pipe, and the; A rubber contact edge is fixedly mounted on one end of the first water guide plate, elastic support rods are arranged inside the rubber contact edge, and an arc groove is provided on 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 their ends; The rubber contact edge and the soft rubber bottom pad are both made of soft rubber material.

[0009] As an optional solution of the cooling device for processing plastic products of the present invention, wherein: the inner part of the outer isolation tube is also arranged in a ring shape with a power adjustment mechanism, the power adjustment mechanism includes an active cavity, a piston rod, a storage cavity and a reset spring, the inner part of the outer isolation tube is provided with an active cavity, the inner part of the active cavity is slidably mounted with a piston rod, and one end of the piston rod is fixedly mounted with a sealing ring; A pressure chamber is provided between the outer side of the piston rod and the interior of the active chamber. A storage chamber located in an outer isolation tube is also provided at the lower end of the active chamber. One side of the storage chamber is connected to the pressure chamber. A return spring is fixedly installed inside one end of the piston rod, and the interior of the storage chamber is filled with mercury.

[0010] As an optional solution of the cooling device for processing plastic products of the present invention, 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, and 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, and the insides of the support rings, side rings and spray boxes are all hollow structures; A flat spray hole is provided on one side of the spray box, and through grooves are provided 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.

[0011] As an optional solution of the cooling device for processing plastic products described in the present invention, wherein: a heat exchange ring located on the upper surface of the main shell is provided on the outer side of the compression chamber, a spiral sheet is provided inside the heat exchange ring, and the spiral sheet is used to form a spiral cavity inside the heat exchange ring, 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, the inner wall of the heat exchange ring is provided with heat conduction fins located inside the air inlet cavity, and the heat conduction fins are 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 housing, a second pump body is installed on one side of the radiator, and the first reflux 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.

[0012] As an optional solution of the cooling device for plastic product processing described in the present invention, the extrusion end also includes a connecting head and an external tube, one end of the limiting inner shaft is provided with a connecting head, one end of the connecting head is fixedly installed with a spiral frame, and one side of the limiting inner shaft is provided with an external tube.

[0013] As an optional solution of the cooling device for processing plastic products of the present invention, wherein: the spiral frame includes a connecting pipe, a rotating ring and a spiral pipe, one end of the connecting head is fixedly mounted with a connecting pipe, 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 mounted on the outer side of the connecting pipe, and a rotating tube is symmetrically mounted on the outer side of the rotating ring.

[0014] As an optional solution of the cooling device for plastic product processing described in the present invention, the spiral frame also includes a combined pipe sleeve, a sealing strip and a sealing ring, a 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 two connecting pipes end to end, and a sealing ring is fixedly installed on the outer side of the connecting head.

[0015] The present invention has the following beneficial effects: 1. The cooling device for processing plastic products uses a flow guide to guide the coolant into the outer surface of the plastic pipe. The coolant flows on the outer surface of the plastic pipe and cools the plastic pipe. When the water flows, the temperature is adjusted by the plastic pipe inside the power regulating mechanism. The higher the temperature, the greater the flip angle. The greater the angle, the closer it is to a vertical state, and the slower the coolant flow is guided. This enables the angle of flipping of the first water guide plate and the second water guide plate to be changed according to the temperature, and the residence time of the coolant on the outer surface of the plastic pipe to be changed.

[0016] 2. The cooling device for processing plastic products, through the action of the heat exchange rack, is sent back into the coolant rack through the second return pipe to volatilize the heat, and the coolant is operated again to realize the recycling function of the coolant; When air passes through the inside of the compression chamber from the inside of the air intake chamber, the air pressure increases, the density increases, and the thermal conductivity coefficient of the small hole wall increases. Due to the heat dissipation of the small hole wall, the temperature of the heat dissipated here is directly transferred to the inside of the heat exchange ring through the device, so that after the air enters the release chamber and is released, the temperature will be further reduced, so that the device increases the cooling effect on the air, and after the temperature is further reduced, the cooling effect on the release chamber is more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall side structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the main shell of the present invention.

[0020] Figure 4 It is a schematic diagram of the heat pipe structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the first water guide plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the combined structure of the external isolation tube and the coolant rack of the present invention.

[0023] Figure 7 For the present invention Figure 6 The B area is a schematic diagram of the local structure.

[0024] Figure 8 For the present invention Figure 3 A is a schematic diagram of the local structure.

[0025] Fig. 9 It is a schematic diagram of the expansion and contraction frame structure of the present invention.

[0026] Fig.10 It is a schematic diagram of the internal structure of the extruded outer ring of the present invention.

[0027] Fig.11 For the present invention Figure 3 A is a schematic diagram of the local structure.

[0028] In the figure: 1, extruder; 2, compression tube; 21, main housing; 22, air inlet chamber; 23, compression chamber; 24, release chamber; 3. heat exchange rack; 31. coolant rack; 32. outer ring cavity; 33. inner ring cavity; 34. guide cone; 35. inner cone hole; 36. second return pipe; 37. return groove; 38. first pump body; 4. heat conduction pipe; 41. outer isolation pipe; 42. inner isolation pipe; 43. flow guide elbow; 44. flow guide channel; 45. sealing ring; 47. flow guide rubber ring; 5. 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 6. Power adjustment mechanism; 61. Active chamber; 62. Piston rod; 63. Storage chamber; 64. Return spring; 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; 8. Extrusion end; 81. Extrusion outer ring; 82. Forming cavity; 83. Limiting inner shaft; 84. Connector; 85. External pipe; 86. Liquid inlet cavity; 9. spiral frame; 91. connecting pipe; 92. rotating ring; 93. spiral pipe; 94. combined pipe sleeve; 95. sealing strip; 96. sealing ring; 11. plastic pipe; 12. elastic support rod; 14. flow guide pipe; 15. heat exchange ring; 16. spiral sheet; 17. external heat conduction pipe; 18. collecting pipe; 19. liquid inlet pipe; 201. radiator; 20. first return pipe; 202. second pump body; 20. first return pipe; 301. Bellows. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1, please refer to Figure 1-Figure 11 A cooling device for processing plastic products, including an extruder 1 and a compression tube 2 at one end of the extruder 1, the compression tube 2 including a main shell 21, an air inlet chamber 22, a compression chamber 23 and a release chamber 24, the cross-sectional structure of the main shell 21 is a symmetrical conical structure, one end of the main shell 21 is provided with an air inlet chamber 22, one end of the main shell 21 is provided with a compression chamber 23 located in the main shell 21, one end of the air inlet chamber 22 is provided with a release chamber 24 located in the main shell 21, and one side of the main shell 21 is fixedly installed with a bellows 301; A heat conducting pipe 4 is provided inside the main shell 21. The heat conducting pipe 4 includes an outer isolating pipe 41, an inner isolating pipe 42, a flow guiding elbow 43 and a flow guiding channel 44. An outer isolating pipe 41 is provided at one end inside the main shell 21. An inner isolating pipe 42 is provided inside the outer isolating pipe 41. A flow guiding elbow 43 is provided on the outer surface of the inner isolating pipe 42. An annular cavity is provided between the inner isolating pipe 42 and the flow guiding elbow 43. The annular cavity is the flow guiding channel 44. The flow guiding channel 44 is used to guide the coolant. The flow guiding channel 44 is normally closed. An extrusion end 8 is installed at one end of the extruder 1, and 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. The outer surface of one end of the extruder 1 is fixedly installed with an extrusion outer ring 81, and the inner limiting inner shaft 83 is fixedly installed inside the extrusion outer ring 81. The inner limiting inner shaft 83 is provided with a liquid inlet cavity 86, and the inner extrusion outer ring 81 is provided with a shaping cavity 82, and the inner limiting inner shaft 83 is also installed inside the shaping cavity 82. One end of the limiting inner shaft 83 extends into the outer isolation tube 41, and an annular cavity is formed between the outer isolation tube 41 and the limiting inner shaft 83. A plastic tube 11 is installed inside the annular cavity, and a spiral frame 9 is fixedly installed at one end of the limiting inner shaft 83; A cooling cavity is provided between the outer surface of the plastic tube 11 and the outer surface of the inner isolation tube 42, and the coolant is used to flow into the cooling cavity and contact the outer surface of the plastic tube 11; The heat conducting pipe 4 further includes a sealing ring 45 and a flow guiding rubber ring 47. The outer isolating pipe 41 is provided with a sealing ring 45 which is sealed against the inner wall of the inner isolating pipe 42. The sealing ring 45 is provided with notches arranged therein. The sealing ring 45 is used to open and close the cooling liquid. A heat exchange frame 3 is installed on the outside of the outer isolation tube 41. The heat exchange frame 3 includes a coolant frame 31, an outer ring cavity 32, an inner ring cavity 33, a guide cone 34, an inner cone hole 35 and a second return pipe 36. The outer surface of the outer isolation tube 41 is provided with a coolant frame 31. The coolant frame 31 includes a cooling outer ring and a cooling inner ring. An inner ring cavity 33 is provided inside the cooling inner ring, and an outer ring cavity 32 is provided inside the cooling outer ring; The cooling inner ring is integrally provided with the outer side of the outer isolation tube 41, and the cooling outer ring is integrally provided with the inner wall of the main shell 21. A guide cone 34 is arranged between the cooling inner ring and the cooling outer ring, and an inner cone hole 35 is provided inside the guide cone 34. The guide cone 34 is used to connect the inner ring cavity 33 with the outer ring cavity 32. One side of the inner ring cavity 33 is connected to the flow guide channel 44, and one end of the flow guide elbow 43 is integrally arranged with one side of the cooling inner ring; A second reflux pipe 36 is fixedly mounted on the upper surface of the cooling outer ring, a reflux groove 37 is provided on the lower surface of one end of the inner isolation pipe 42, the other end of the second reflux pipe 36 is connected to the lower surface of the reflux groove 37, and a first pump body 38 is mounted on the outer side of the reflux groove 37; A guide rubber ring 47 is installed on the lower surface of the sealing ring 45, and the guide rubber ring 47 is used to prevent the coolant from directly impacting the outer surface of the plastic pipe 11; A sealing bottom ring 60 is fixedly mounted on the inner wall of one end of the inner isolation tube 42, and the outer surface of the plastic tube 11 is connected to the inner wall of the sealing bottom ring 60 in a sliding sealing manner; The inner wall of the inner isolation tube 42 is arranged with a guide frame 5, the guide frame 5 includes a first water guide plate 51 and a second water guide plate 52, and the inner wall of the inner isolation tube 42 is arranged with a plurality of groups of first water guide plates 51 and second water guide plates 52, each of the first water guide plates 51 and the second water guide plates 52 is a separate group, and each group of first water guide plates 51 and second water guide plates 52 is sequentially arranged on the inner wall of the inner isolation tube 42; A shaft pin is provided at one end of the upper surface of the first water guide plate 51 and the second water guide plate 52. The end of the first water guide plate 51 and the second water guide plate 52 provided 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 rotated to the limit position respectively, the head end and the tail end are in contact with each other. One end of the first water guide plate 51 and the second water guide plate 52 are connected to the inner wall of the inner isolation tube 42 by rotation, and one end of each group of first first water guide plates 51 is in contact with one end of each group of second second water guide plates 52; The guide frame 5 further includes a positioning groove 53, a connecting rod 54, a pull rod 55, a movable rod 56 and a protective cover 57. The upper surfaces of the first water guide plate 51 and the second water guide plate 52 are both provided with a positioning groove 53. The upper surface of the positioning groove 53 is movably mounted with a connecting rod 54. One end of the connecting rod 54 is movably connected to the movable rod 56. One end of the movable rod 56 is movably connected to the pull rod 55. Each connecting rod 54 is rotatably connected to the positioning groove 53. The connecting rod 54 is used to form a linkage state with each first water guide plate 51. The first water guide plate 51 has the same structure as the second water guide plate 52. A protective cover 57 is fixedly installed at the bottom end of the first water guide plate 51. A support spring 59 is also arranged at the bottom end of the first water guide plate 51. A soft rubber base pad 58 is fixedly installed at the bottom end of the support spring 59. The soft rubber base pad 58 is used to fit the outer surface of the plastic pipe 11. A rubber contact edge 50 is fixedly mounted on one end of the first water guide plate 51, and elastic support rods 12 are arranged inside the rubber contact edge 50. An arc groove is provided on one end of the rubber contact edge 50, and the arc groove is used to fit the first water guide plate 51 and the second water guide plate 52 at their ends. The rubber contact edge 50 and the soft rubber bottom pad 58 are both made of soft rubber; The inner isolation tube 42 is also provided with a power regulating mechanism 6 arranged in a ring shape. The power regulating mechanism 6 includes an active chamber 61, a piston rod 62, a storage chamber 63 and a return spring 64. The outer isolation tube 41 is provided with an active chamber 61. The active chamber 61 is slidably provided with a piston rod 62. One end of the piston rod 62 is fixedly installed with a sealing ring 45. A pressure chamber is provided between the outer side of the piston rod 62 and the interior of the active chamber 61. A storage chamber 63 located in the outer isolation tube 41 is also provided at the lower end of the active chamber 61. One side of the storage chamber 63 is connected to the pressure chamber. A return spring 64 is fixedly installed inside one end of the piston rod 62, and the interior of the storage chamber 63 is filled with mercury.

[0031] When in 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, and the cooling liquid is filled in the liquid inlet cavity 86 to absorb the heat, and then the heat is transmitted from one end of the limiting inner shaft 83 to the spiral frame 9, and then the spiral frame 9 is transmitted to the inside of the guide tube 14, and then the guide tube 14 sprays the cooling liquid 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 the cooling liquid absorbs less heat when it flows, and can only provide the molding conditions of the plastic tube 11. The cooling liquid is directly sprayed on the inner wall of the plastic tube 11 through the subsequent spiral frame 9 and the expansion and contraction frame 7, and the heat exchange is carried out by direct contact; Working principle of heat exchange rack 3: Figure 3 , Figure 4 and Figure 5 As 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. 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; Working principle of heat pipe 4: According to Figure 4 and Figure 7As 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. Working principle of guide frame 5: Figure 4 As shown, the sealing ring 45 can be pulled by the action of the piston rod 62, and the sealing ring 45 and the pull rod 55 are fixedly connected. 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 of the figure, so that one end of the first water guide plate 51 and the second water guide plate 52 are turned over with the connecting rod 54. When the first water guide plate 51 and the second water guide plate 52 are turned over, each first water guide plate 51 and the second water guide plate 52 are arranged to form a group respectively, and each group of first water guide plates 51 and second water guide plates 52 are placed and installed in sequence. When the first one of the first water guide plates 51 in a group turns to the extreme position, its tail end position will be in contact with the head end of the second second water guide plate 52 in a group of the second water guide plates 52, forming a head-to-tail connection state, so that multiple first water guide plates 51 and second water guide plates 52 are combined to form a spiral-shaped strip plate, and surround the plastic The outer surface of the tube 11 guides the coolant through the strip plate when the coolant passes through, so that the coolant also forms a spiral shape and flows around the outer surface of the plastic tube 11. Through its spiral-like flow trajectory, the time that the coolant is located on the outer surface of the plastic tube 11 is maximized, which greatly increases the contact time between the coolant and the plastic tube 11 and improves the heat conduction temperature. The flip angle of the first water guide plate 51 and the second water guide plate 52 is related to the temperature of the inside of the power regulating mechanism 6 conducted by the plastic tube 11. The higher the temperature, the larger the flip angle. The larger the angle, the more it tends to be vertical, and the slower the guiding of the coolant. This makes it possible to change the flip angle of the first water guide plate 51 and the second water guide plate 52 according to the temperature, thereby changing the residence time of the coolant on the outer surface of the plastic tube 11. Working principle of the guide frame 5: the plastic tube 11 is a circular structure. When the first water guide plate 51 and the second water guide plate 52 are connected end to end, the first water guide plate 51 and the second water guide plate 52 are not at the same angle, which will cause the connection parts of the two to not be in a parallel state, resulting in inability to completely overlap. 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 with the contact part to connect the fitting state of the two, and the soft rubber bottom pad 58 can also be completely fitted according to the outer surface of the plastic tube 11 when the first water guide plate 51 is turned over to achieve a closed state; Working principle of the heat exchange rack 3: During the flow process, wind is provided to the interior of the main shell 21 through the bellows 301. Through the continuous flow of wind, the air is compressed when passing through the compression chamber 23 from the interior of the air inlet chamber 22. When the air is compressed, the air enters the compression chamber 23 from the air inlet chamber 22, similar to a large hole passing through a small hole, so that the air temperature is reduced. This is the prior art and will not be elaborated on here. The air continues to flow and flows into the interior of the release chamber 24. At this time, the air with reduced temperature absorbs the heat inside the release chamber 24 when passing between the two release chambers 24, so that the temperature of the coolant inside the release chamber 24 is reduced together, and finally discharged from the interior of the device, completing the coolant treatment of the release chamber 24 and the coolant inside it.

[0032] Example 2: This example is an improvement made on the basis of Example 1. For details, please refer to Figure 1-Figure 11 A guide tube 14 is fixedly mounted on one end of the spiral frame 9, and an expansion and contraction frame 7 is arranged on the outside of the guide tube 14; The expansion and contraction frame 7 includes a support ring 71, a side ring 72, a spray box 73, a flat spray hole 74, a through groove 75 and a telescopic shaft tube 76. The support ring 71 is symmetrically installed on the outside of the guide tube 14, and the two ends of the two support rings 71 are slidably installed with side rings 72. The side rings 72 and the support rings 71 are both provided with spray boxes 73 on the outside. The insides of the support ring 71, the side rings 72 and the spray box 73 are all hollow structures. A flat spray hole 74 is provided on one side of the spray box 73, and through grooves 75 are provided on the inner sides of the support ring 71 and the side ring 72. The through grooves 75 are used to connect the inner side of the spray box 73 with the support ring 71 and the side ring 72 respectively.

[0033] The outer surface of the guide tube 14 is symmetrically provided with a telescopic shaft tube 76 , the top end of the telescopic shaft tube 76 is used to communicate with the inside of the support ring 71 , and the support ring 71 and the side ring 72 are in a sliding sealing state.

[0034] The limiting inner shaft 83 provides cooling liquid for the spiral frame 9, and the cooling liquid is transferred to the guide tube 14 through the guide tube 14. At this time, the cooling liquid passes through the guide tube 14 and then is transferred to the inside of the support ring 71 by the telescopic shaft tube 76, and then is transferred to the inside of the two side rings 72 by the support ring 71, and is ejected through the flat spray hole 74. The spray box 73 is designed to be inclined, so that the spraying direction sprays at an inclined angle 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 output When the flow rate of the delivered liquid exceeds the spraying speed of the flat spray hole 74, the excess liquid will form pressure on the support ring 71 and the side ring 72, and drive the support ring 71 and the side ring 72 to expand outward until the outer surface of the flat spray hole 74 and the inner wall of the plastic tube 11. The pressure of the gushing water flow and the power of expansion offset each other, and the support ring 71 and the side ring 72 can maintain 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 tube 11.

[0035] Example 3: This example is an improvement made on the basis of Example 2. For details, please refer to Figure 1-Figure 11 The outer side of the compression chamber 23 is provided with a heat exchange ring 15 located on the upper surface of the main shell 21, and the interior of the heat exchange ring 15 is provided with a spiral sheet 16, which is used to form a spiral cavity inside the heat exchange ring 15, and one end of the spiral cavity is installed 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. The inner wall of the heat exchange ring 15 is provided with heat conduction fins located inside the air inlet cavity 22, and the heat conduction fins are arranged horizontally and arranged in a ring array on the inner wall of the heat exchange ring 15, and the interior of the spiral cavity is filled with cooling liquid; 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, and the first reflux pipe 20 is used to connect the radiator 201, the second pump body 202 and the heat exchange ring 15; An external heat conducting pipe 17 is arranged inside the heat exchange ring 15, and a heat exchange plate is arranged inside the external heat conducting pipe 17. A collecting pipe 18 is arranged at one end of the external heat conducting pipe 17, and a liquid inlet pipe 19 is installed on one side of the collecting pipe 18. The liquid inlet pipe 19 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 301.

[0036] Working principle of the heat exchange ring 15: When the air passes through 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, which is similar to a large hole passing through a small hole, so that the air temperature is reduced; when the air enters the compression chamber 23, it will contact the heat dissipation fins, and be introduced into the spiral sheet 16 through the heat dissipation fins, and the heat is extracted by the coolant in the spiral cavity. At this time, the second pump body 202 drives the coolant into the spiral cavity, and pushes the previous coolant to flow out and flow into the radiator 201. The heat inside the coolant is volatilized through the radiator 201 and sent into the spiral cavity again, and the spiral sheet 16 realizes the function of circulating cooling, and the bellows 301 is connected with the thick pipe section, and provides external airflow for the liquid inlet pipe 19 for cooling. The airflow enters the external heat conduction pipe 17, and simultaneously takes out the heat inside the heat exchange ring 15, completing the multiple cooling effects on the inside of the heat exchange ring 15; The device directly transfers the heat dissipated here to the inside of the heat exchange ring 15, so that after the air enters the release chamber 24 and is released, the temperature will be further reduced, so that the device increases the cooling effect on the air, and after the temperature is further reduced, the cooling effect on the release chamber 24 is more significant.

[0037] Example 4: This example is an improvement made on the basis of Example 3. For details, please refer to Figure 1-Figure 11 The extrusion end 8 also includes a connector 84 and an external tube 85. One end of the limiting inner shaft 83 is provided with a connector 84, one end of the connector 84 is fixedly mounted with a spiral frame 9, and one side of the limiting inner shaft 83 is provided with an external tube 85; The spiral frame 9 includes a connecting tube 91, a rotating ring 92 and a spiral tube 93. The connecting tube 91 is fixedly mounted on one end of the connecting head 84, and one end of the connecting tube 91 is used to be sleeved on the outer surface of the connecting head 84; A rotating ring 92 is rotatably mounted on the outer side of the connecting tube 91, and a rotating tube 93 is symmetrically mounted on the outer side of the rotating ring 92; The spiral frame 9 also includes a combined pipe sleeve 94, a sealing strip 95 and a sealing ring 96. The combined pipe sleeve 94 is fixedly installed at one end of the connecting pipe 91. The combined pipe sleeve 94 is symmetrically installed with the sealing strip 95. The sealing strip 95 is used to seal 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 outer side of the connecting head 84.

[0038] Working principle of the spiral rack 9: when in use, one end of the connecting pipe 91 is sleeved on one end of the connector 84, so that the sealing rubber ring 96 is embedded in the interior of the connecting pipe 91 to form a sealed fixed state. In the same way, the combined pipe sleeve 94 is embedded in the other end of the connecting pipe 91. Through the combined pipe sleeve 94, multiple connecting pipes 91 can be combined and connected. The connection length of the plastic pipe 11 can be adjusted according to the length of the plastic pipe 11 on site. The end of the frontmost connecting pipe 91 will be installed with a sealing plug to limit the gas to flow out only from the spiral pipe 93; The connecting tube 91 is fixed by limiting the inner shaft 83, and the connecting tube 91 is connected to the spiral tube 93. According to the spiral structure of the spiral tube 93, the spiral tube 93 will form a lateral thrust while conveying the liquid. The lateral thrust can provide a rotational force to the rotating ring 92, so that the spiral tube 93 rotates synchronously while spraying the liquid, so that the sprayed coolant can form a spiral state. In the spiral mode, the coolant will form a spiral circulation and diverge along one end of the inside of the plastic tube 11. The coolant sprayed in the spiral mode can achieve a more uniform heat dissipation effect, so that the inside of the plastic tube 11 can have a cooling effect, and used in conjunction with the cooling method of the above-mentioned heat-conducting tube 4, a cooling effect is formed both inside and outside the plastic tube 11.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cooling device for processing plastic products, comprising an extruder (1) and a compression tube (2) at one end of the extruder (1), characterized in that: The compression tube (2) comprises a main shell (21), an air intake chamber (22), a compression chamber (23) and a release chamber (24); the cross-sectional structure of the main shell (21) is a symmetrical conical structure; one end of the main shell (21) is provided with an air intake chamber (22); one end of the main shell (21) is provided with a compression chamber (23) located inside the main shell (21); one end of the air intake chamber (22) is provided with a release chamber (24) located inside the main shell (21); and a bellows (301) is fixedly mounted on one side of the main shell (21); A heat conduction pipe (4) is provided inside the main shell (21), and the heat conduction pipe (4) comprises an outer isolation pipe (41), an inner isolation pipe (42), a flow guide elbow (43) and a flow guide channel (44); an outer isolation pipe (41) is provided at one end inside the main shell (21); an inner isolation pipe (42) is provided inside the outer isolation pipe (41); a flow guide elbow (43) is provided on the outer surface of the inner isolation pipe (42); an annular cavity is provided between the inner isolation pipe (42) and the flow guide elbow (43); the annular cavity is the flow guide channel (44); the flow guide channel (44) is used to guide cooling liquid; the flow guide channel (44) is normally in a closed state; An extrusion end (8) is installed at one end of the extruder (1), and the extrusion end (8) comprises an extrusion outer ring (81), a shaping cavity (82), a limiting inner shaft (83) and a liquid inlet cavity (86); an extrusion outer ring (81) is fixedly installed on the outer surface of one end of the extruder (1), a limiting inner shaft (83) is fixedly installed inside the extrusion outer ring (81), a liquid inlet cavity (86) is provided inside the limiting inner shaft (83), a shaping cavity (82) is provided inside the extrusion outer ring (81), and a limiting inner shaft (83) is also installed inside the shaping cavity (82).

2. The cooling device for plastic product processing according to claim 1, characterized in that: 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), a plastic tube (11) is installed inside the annular cavity, and a spiral frame (9) is fixedly installed on one end of the limiting inner shaft (83); A cooling cavity is provided between the outer surface of the plastic tube (11) and the outer surface of the inner isolation tube (42), and the coolant is used to flow into the cooling cavity and contact the outer surface of the plastic tube (11); The heat conducting pipe (4) further comprises a sealing ring (45) and a flow guiding rubber ring (47); the outer isolation pipe (41) is internally provided with a sealing ring (45) which is sealingly fitted to the inner wall of the inner isolation pipe (42); the sealing ring (45) is internally provided with notches; the sealing ring (45) is used to provide an opening and closing function for the cooling liquid; A heat exchange frame (3) is installed on the outside of the outer isolation tube (41), the heat exchange frame (3) comprising a cooling liquid frame (31), an outer ring cavity (32), an inner ring cavity (33), a guide cone (34), an inner cone hole (35) and a second return pipe (36), the outer surface of the outer isolation tube (41) is provided with a cooling liquid frame (31), the cooling liquid frame (31) comprising a cooling outer ring and a cooling inner ring; An inner ring cavity (33) is provided inside the cooling inner ring, and an outer ring cavity (32) is provided inside the cooling outer ring; The cooling inner ring is integrally arranged with the outer side of the outer isolation tube (41), the cooling outer ring is integrally arranged with the inner wall of the main shell (21), a guide cone tube (34) is arranged between the cooling inner ring and the cooling outer ring, an inner cone hole (35) is provided inside the guide cone tube (34), and the guide cone tube (34) is used to connect the inner ring cavity (33) with the outer ring cavity (32); One side of the inner ring cavity (33) is in communication with the flow guide channel (44), and one end of the flow guide elbow (43) is integrally arranged with the cooling inner ring; A second reflux pipe (36) is fixedly mounted on the upper surface of the cooling outer ring, a reflux groove (37) is provided on the lower surface of one end of the inner isolation pipe (42), the other end of the second reflux pipe (36) is connected to the lower surface of the reflux groove (37), and a first pump body (38) is mounted on the outer side of the reflux groove (37); A flow-guiding rubber ring (47) is installed on the lower surface of the sealing ring (45), and the flow-guiding rubber ring (47) is used to prevent the coolant from directly impacting the outer surface of the plastic pipe (11); A sealing bottom ring (60) is fixedly mounted on the inner wall of one end of the inner isolation tube (42), and the outer surface of the plastic tube (11) is connected to the inner wall of the sealing bottom ring (60) 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 (42) is arranged with a flow guide frame (5), the flow guide frame (5) comprising a first water guide plate (51) and a second water guide plate (52), the inner wall of the inner isolation tube (42) is arranged with a plurality of groups of the first water guide plate (51) and the second water guide plate (52), 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 sequentially arranged on the inner wall of the inner isolation tube (42); An axis pin is provided at one end of the upper surface of the first water guide plate (51) and the second water guide plate (52); one end of the first water guide plate (51) and the second water guide plate (52) where the axis pin is provided 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 rotated to the extreme position, the head end and the tail end are in contact with each other; One end of each of the first water guide plate (51) and the second water guide plate (52) is connected to the inner wall of the inner isolation tube (42) by rotation, and one end of each group of the first first water guide plate (51) is fitted with one end of each group of the second second water guide plate (52).

4. The cooling device for processing plastic products according to claim 3, characterized in that: The guide frame (5) further comprises a positioning groove (53), a connecting rod (54), a pulling rod (55), a movable rod (56) and a protective cover (57); the upper surfaces of the first water guide plate (51) and the second water guide plate (52) are both provided with a positioning groove (53); a connecting rod (54) is movably mounted on the upper surface of the positioning groove (53); one end of the connecting rod (54) is movably connected to the movable rod (56); one end of the movable rod (56) is movably connected to the pulling rod (55); each of the connecting rods (54) is rotatably connected to the positioning groove (53); the connecting rod (54) is used to form each of the first water guide plates (51) in a linkage state; the first water guide plate (51) and the second water guide plate (52) have the same structure; A protective cover (57) is fixedly mounted on the bottom end of the first water guide plate (51), a support spring (59) is also arranged on the bottom end of the first water guide plate (51), a soft rubber base pad (58) is fixedly mounted on the bottom end of the support spring (59), and the soft rubber base pad (58) is used to fit the outer surface of the plastic pipe (11); A rubber contact edge (50) is fixedly mounted on one end of the first water guide plate (51), elastic support rods (12) are arranged inside the rubber contact edge (50), and an arc groove is provided at one end of the rubber contact edge (50), the arc groove is used to fit the first water guide plate (51) and the second water guide plate (52) at their ends; The rubber contact edge (50) and the soft rubber bottom pad (58) are both made of soft rubber material.

5. The cooling device for plastic product processing according to claim 4, characterized in that: A power regulating mechanism (6) is also arranged in a ring shape inside the outer isolation tube (41), and the power regulating mechanism (6) comprises an active chamber (61), a piston rod (62), a storage chamber (63) and a return spring (64). The active chamber (61) is provided inside the outer isolation tube (41), and a piston rod (62) is slidably mounted inside the active chamber (61), and one end of the piston rod (62) is fixedly mounted to a sealing ring (45); A pressure chamber is provided between the outer side of the piston rod (62) and the interior of the movable chamber (61); a storage chamber (63) located in the outer isolation tube (41) is further provided at the lower end of the movable chamber (61); one side of the storage chamber (63) is communicated with the pressure chamber; a return spring (64) is fixedly installed inside one end of the piston rod (62); and the interior of the storage chamber (63) is filled with mercury.

6. The cooling device for processing plastic products according to claim 5, characterized in that: A flow guide tube (14) is fixedly mounted on one end of the spiral frame (9), and an expansion and contraction frame (7) is arranged on the outside of the flow guide tube (14); The expansion and contraction frame (7) comprises a support ring (71), a side ring (72), a spray box (73), a flat spray hole (74), a through groove (75) and a telescopic shaft tube (76); the support ring (71) is symmetrically mounted on the outer side of the guide tube (14); the side rings (72) are slidably mounted on both ends of the two support rings (71); the spray box (73) is disposed on the outer side of the side ring (72) and the support ring (71); and the interior of the support ring (71), the side ring (72) and the spray box (73) are all hollow structures; A flat spray hole (74) is provided on one side of the spray box (73), and through grooves (75) are provided on the inner sides of the support ring (71) and the side ring (72). The through grooves (75) are used to connect the inner side of the spray box (73) with the support ring (71) and the side ring (72), respectively.

7. The cooling device for processing plastic products according to claim 6, characterized in that: A heat exchange ring (15) located on the upper surface of the main shell (21) is provided on the outside of the compression chamber (23), and a spiral sheet (16) is provided inside the heat exchange ring (15). The spiral sheet (16) is used to form a spiral cavity inside the heat exchange ring (15), and a first return pipe (20) located on the upper surface of the heat exchange ring (15) 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 (20). The inner wall of the heat exchange ring (15) is provided with heat conduction fins located inside the air inlet chamber (22), and the heat conduction fins are arranged horizontally and in a circular array on the inner wall of the heat exchange ring (15), and the interior of the spiral cavity is filled with cooling liquid; A radiator (201) is fixedly mounted below the main housing (21), a second pump body (202) is mounted on one side of the radiator (201), and the first return pipe (20) is used to connect the radiator (201), the second pump body (202) and the heat exchange ring (15); An external heat conducting pipe (17) is arranged inside the heat exchange ring (15), a heat exchange plate is arranged inside the external heat conducting pipe (17), a collecting pipe (18) is arranged at one end of the external heat conducting pipe (17), a liquid inlet pipe (19) is installed on one side of the collecting pipe (18), the liquid inlet pipe (19) comprises 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 wind box (301).

8. The cooling device for processing plastic products according to claim 7, characterized in that: The extrusion end (8) further comprises a connecting head (84) and an external tube (85); one end of the position-limiting inner shaft (83) is provided with a connecting head (84); one end of the connecting head (84) is fixedly mounted with a spiral frame (9); and one side of the position-limiting inner shaft (83) is provided with an external tube (85).

9. The cooling device for processing plastic products according to claim 8, characterized in that: The spiral frame (9) comprises a connecting tube (91), a rotating ring (92) and a spiral tube (93); one end of the connecting head (84) is fixedly mounted with the connecting tube (91); one end of the connecting tube (91) is used to be sleeved on the outer surface of the connecting head (84); A rotating ring (92) is rotatably mounted on the outer side of the connecting tube (91), and a rotating tube (93) is symmetrically mounted on the outer side of the rotating ring (92).

10. The cooling device for processing plastic products according to claim 9, characterized in that: The spiral frame (9) further comprises a combined pipe sleeve (94), a sealing rubber strip (95) and a sealing rubber ring (96); one end of the connecting pipe (91) is fixedly mounted with the combined pipe sleeve (94); the combined pipe sleeve (94) is symmetrically mounted with the sealing rubber strip (95); the sealing rubber strip (95) is used to seal the combined pipe sleeve (94) on one end of the connecting pipe (91); the combined pipe sleeve (94) is used to connect the two connecting pipes (91) end to end; and the outer side of the connecting head (84) is fixedly mounted with the sealing rubber ring (96).

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