A rapid cooling and shaping device for plastic product production

Abstract

The utility model discloses a kind of quick cooling setting device for plastic product production, including lower mould, detachably equipped with upper mould on lower mould, upper mould and lower mould outside are provided with speed regulator, speed regulator includes connecting pipe, fixed pipe, control sleeve, control block, conical frame, cooperation rod, cooperation sleeve and adjusting groove, control block is arranged in fixed pipe, conical frame is arranged in fixed pipe, cooperation rod is installed in one end of conical frame, cooperation sleeve is set on the outside of cooperation rod by thread, adjusting groove is opened in the outside of conical frame, control block is connected with conical frame by adjusting groove, connecting pipe outside is provided with locking mechanism, locking mechanism includes moving plate, moving rod, connecting spring, sliding sleeve, sliding block, fixed block and moving hole, moving rod is installed in one side of sliding sleeve, connecting spring is connected with sliding block, fixed block is installed in the outside of connecting pipe, moving hole is opened on moving plate, the utility model realizes the flexible adjustment of the cooling liquid delivery speed and guarantees the structural stability after flow rate adjustment.

Description

Technical Field

[0001] This utility model relates to the field of cooling and shaping technology in the production of plastic products, and more specifically, it relates to a rapid cooling and shaping device for the production of plastic products. Background Technology

[0002] In the existing plastic product manufacturing industry, rapid cooling and shaping devices are key equipment to ensure product molding quality and production efficiency. Their technical performance directly affects the dimensional accuracy, surface finish, and internal structure stability of the final product. However, the mainstream cooling and shaping devices on the market have revealed many technical defects in actual application.

[0003] Firstly, from the perspective of cooling capacity control, existing rapid cooling and shaping devices for plastic products typically employ liquid cooling pipes for rapid heat exchange and cooling during injection molding. These systems are mostly equipped with cooling circulation devices with fixed parameters. The coolant (usually treated industrial water or a special coolant) circulates along a preset path under the action of a pump. However, a common and serious flaw in these systems is that the coolant flow rate is designed to be a constant, fixed value. This rigid design completely ignores the differentiated cooling requirements of plastic products with different materials, thicknesses, and geometries during the cooling process, and cannot be adjusted according to actual needs. The cooling intensity should be flexibly adjusted according to demand (such as seasonal temperature variations, different product types, and different production batches). Specifically, when processing thin-walled plastic products, an excessively fast cooling rate may lead to stress concentration, warping, deformation, or even cracking. On the other hand, when processing thick-walled products, a fixed flow rate may result in insufficient cooling, prolonging the production cycle, reducing production efficiency, and even causing microstructural defects such as uneven crystallization inside the product. This "one-size-fits-all" cooling method not only fails to meet the modern plastics industry's demand for refined and differentiated product production, but also seriously affects the company's production efficiency and product quality stability, ultimately leading to unnecessary energy waste and economic losses.

[0004] Secondly, from the perspective of equipment structural stability, although some improved cooling shaping devices have initially achieved the function of flexibly adjusting the coolant delivery flow rate, these devices are still technically crude and primitive, with low overall stability. Specifically, the adjustment mechanism has a simple structure and insufficient pressure resistance, making it unable to withstand long-term operation under high pressure conditions. This simplified design makes the adjustment system highly susceptible to interference from hydraulic factors such as hydraulic fluctuations, water hammer effect, fluid resonance, or internal liquid flow impact. This can cause the carefully adjusted flow control components to loosen or shift. In large-scale continuous production, this shift often occurs gradually and is difficult for operators to detect in time. As a result, the adjusted coolant delivery flow rate undergoes small but cumulative changes. These changes are reflected in the product; even small fluctuations in cooling conditions can lead to unacceptable quality differences between products in the same batch, including dimensional deviations, uneven shrinkage, and inconsistent internal stress distribution. This seriously affects product consistency and pass rate, and also greatly increases energy consumption and quality control costs in the production process. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a rapid cooling and shaping device for the production of plastic products, so as to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling and shaping device for the production of plastic products, comprising a lower mold, on which an upper mold is detachably mounted. A speed regulating device is provided on the outer sides of the upper and lower molds. The speed regulating device includes a connecting pipe, a fixed pipe, a control sleeve, a control block, a conical frame, a mating rod, a mating sleeve, and an adjusting groove. The two ends of the control sleeve are rotatably connected to the connecting pipe and the fixed pipe, respectively. The control block is movably disposed within the fixed pipe. The conical frame is movably disposed within the fixed pipe. The mating rod is fixedly mounted at one end of the conical frame. The mating sleeve is movably fitted onto the outer side of the mating rod via a thread. The adjusting groove is located on the outer side of the conical frame. The control block is slidably connected to the conical frame via the adjusting groove. A locking mechanism is provided on the outer side of the connecting pipe. The locking mechanism includes a moving plate, a moving rod, a connecting spring, a sliding sleeve, a slider, a fixed block, and a moving hole. The moving plate is rotatably mounted on the outer side of the connecting pipe. The moving rod is fixedly mounted on one side of the sliding sleeve. The two ends of the connecting spring are respectively connected to two adjacent sliders. Multiple fixed blocks are fixedly mounted on the outer side of the connecting pipe. The moving hole is located on the moving plate.

[0009] The present invention is further configured such that an inlet pipe and an outlet pipe are connected to the outer sides of the upper mold and the lower mold, and a liquid cooling pipe is detachably provided on the inner side of the lower mold and the upper mold. The inlet end of the liquid inlet pipe is fixedly connected to the outlet end of the fixed pipe. This modular design realizes the closed-loop circulation of the cooling system. The detachable liquid cooling pipe is easy to clean, maintain and replace, ensuring long-term stable operation. At the same time, it improves heat exchange efficiency and cooling uniformity, and effectively avoids the problem of local overcooling or insufficient cooling.

[0010] The present invention is further configured such that a movable spring is movably sleeved on the outside of the movable rod, the movable spring is connected to one side of the sliding sleeve, and the other end of the movable spring is in contact with the movable plate. The movable spring provides an automatic reset function, ensuring that the locking and unlocking process is smooth and controllable, while the pre-tightening force of the elastic element enhances the firmness of the locked state.

[0011] The present invention is further configured such that the slider is provided with a roller when it rotates, and the roller is engaged between two fixed blocks. The engagement design of the roller and the fixed blocks forms a precise mechanical positioning mechanism, which reduces friction and improves operational flexibility through point contact.

[0012] The present invention is further configured such that the control block has multiple control holes.

[0013] The present invention is further configured such that a groove is provided in the slider, and multiple slide rails are fixedly provided on one side of the control sleeve. The groove and the slide rails are adapted to each other, and the precise cooperation between the groove and the slide rails constitutes a stable and reliable guiding system, ensuring that the slider moves smoothly along the predetermined trajectory.

[0014] The present invention is further configured such that an adapter block is fixedly provided inside the fixed tube, and an adapter groove is provided on the inner side of the control block. The adapter block is located in the adapter groove. The matching design of the adapter block and the adapter groove forms a precise axial positioning mechanism, which restricts the non-radial movement of the control block and ensures that the control block only expands and contracts radially.

[0015] The present invention is further configured such that both the slide groove and the slide rail are T-shaped structures. The T-shaped slide groove and slide rail provide a larger contact area and stronger mechanical connection strength, effectively preventing the slider from falling off and deflecting during the movement. At the same time, this self-locking design can withstand the action of multi-directional forces and can still maintain a stable connection when the system is subjected to fluid impact.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a rapid cooling and shaping device for the production of plastic products, which has the following advantages:

[0018] 1. The speed control device, comprising a connecting pipe, a fixed pipe, a control sleeve, a control block, a conical frame, a mating rod, a mating sleeve, and an adjusting groove, cleverly solves the technical problem of inflexible adjustment of coolant delivery flow rate in existing technologies. The core of this device lies in the rotation of the control sleeve, which drives the conical frame axially via a threaded transmission mechanism. This, in turn, causes the conical frame to move the control block via the adjusting groove. The control holes on the control block precisely adjust the flow area inside the fixed pipe through positional changes in both the control hole and the control block itself. This adjustable flow area creatively addresses the differentiated cooling rate requirements of plastic products with different materials, thicknesses, and geometric shapes. Operators can appropriately reduce the cooling rate for thin-walled plastic products to avoid stress concentration and warping deformation; for thick-walled products, the flow rate can be increased to improve cooling efficiency and ensure uniform internal crystallization. This structural design considers seasonal temperature variations, different product types, and different production batches. Through precise control of the flow rate, it achieves refined management of the cooling process, significantly improving the quality stability of plastic products, optimizing energy efficiency, reducing unnecessary economic losses, and providing reliable technical support for the high-quality development of the modern plastics industry.

[0019] 2. The locking mechanism consists of components such as a moving plate, moving rod, connecting spring, sliding sleeve, slider, fixed block, and moving hole, constructing a multi-layered, interlocking, and stable structural system. This completely solves the key problem of low stability in existing speed control devices. The mechanism achieves the first layer of locking through the precise engagement between the roller on the slider and the fixed block; the rotational limit of the moving rod, moving hole, and moving plate constitutes the second layer of security; and the limiting effect of the sliding sleeve on the roller provides the third layer of protection. This multi-level locking structure effectively resists various hydraulic interference factors such as hydraulic fluctuations, water hammer effect, fluid resonance, and internal liquid flow impact, preventing loosening or displacement of the adjusted flow control components, especially... When the moving hole rotates to a position not corresponding to the moving rod, the entire system enters a fully locked state, preventing the control sleeve from rotating at all. This ensures that the adjusted coolant delivery flow rate remains absolutely stable. This highly reliable design maintains precise flow rate control even under long-term, high-pressure conditions, effectively avoiding the gradual deviation problem that may occur during large-scale continuous production. It eliminates quality risks such as product size deviation, uneven shrinkage, and inconsistent internal stress distribution caused by fluctuations in cooling conditions, greatly improving product consistency and pass rate. At the same time, it reduces energy consumption and quality control costs in the production process, providing a solid technical guarantee for the efficient and stable production of plastic products. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a rapid cooling and shaping device for the production of plastic products according to this utility model;

[0021] Figure 2 This is a schematic diagram of the liquid cooling pipe section in this utility model;

[0022] Figure 3 This is a schematic diagram of the speed regulating device and locking mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the dispersed structure of the speed regulating device and locking mechanism in this utility model;

[0024] Figure 5 This is a cross-sectional view of the fixed tube and control sleeve in this utility model.

[0025] In the diagram: 1. Lower mold; 2. Upper mold; 3. Connecting pipe; 4. Fixing pipe; 5. Control sleeve; 6. Control block; 7. Conical frame; 8. Matching rod; 9. Matching sleeve; 10. Adjusting groove; 11. Moving plate; 12. Moving rod; 13. Connecting spring; 14. Sliding sleeve; 15. Sliding block; 16. Fixing block; 17. Moving hole; 18. Liquid inlet pipe; 19. Liquid outlet pipe; 20. Liquid cooling pipe; 21. Moving spring; 22. Roller; 23. Control hole; 24. Slide groove; 25. Slide rail; 26. Adaptor block; 27. Adaptor groove. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A rapid cooling and shaping device for the production of plastic products includes a lower mold 1, an upper mold 2 detachably mounted on the lower mold 1, and a speed regulating device on the outer side of the upper mold 2 and the lower mold 1. The speed regulating device includes a connecting pipe 3, a fixed pipe 4, a control sleeve 5, a control block 6, a conical frame 7, a mating rod 8, a mating sleeve 9, and an adjusting groove 10. The two ends of the control sleeve 5 are rotatably connected to the connecting pipe 3 and the fixed pipe 4, respectively. The control block 6 is movably disposed within the fixed pipe 4, the conical frame 7 is movably disposed within the fixed pipe 4, the mating rod 8 is fixedly mounted on one end of the conical frame 7, and the mating sleeve 9 is movably fitted onto the mating rod via a thread. On the outside of the 8, the adjustment groove 10 is opened on the outside of the conical frame 7. The control block 6 is slidably connected to the conical frame 7 through the adjustment groove 10. A locking mechanism is provided on the outside of the connecting pipe 3. The locking mechanism includes a moving plate 11, a moving rod 12, a connecting spring 13, a sliding sleeve 14, a slider 15, a fixing block 16, and a moving hole 17. The moving plate 11 is rotatably installed on the outside of the connecting pipe 3. The moving rod 12 is fixedly installed on one side of the sliding sleeve 14. The two ends of the connecting spring 13 are respectively connected to two adjacent sliders 15. Multiple fixing blocks 16 are fixedly installed on the outside of the connecting pipe 3. The moving hole 17 is opened on the moving plate 11.

[0030] The upper mold 2 and the lower mold 1 are connected to the outside of the liquid inlet pipe 18 and the liquid outlet pipe 19. The lower mold 1 and the upper mold 2 are detachably provided with liquid cooling pipes 20. The input end of the liquid inlet pipe 18 is fixedly connected to the output end of the fixed pipe 4.

[0031] In this embodiment, when the mold needs to be cooled after injection molding, the cooling conveying device connected to the input end of the connecting pipe 3 is first turned on, so that the cooling conveying device delivers the cooled coolant through the connecting pipe 3 to the fixed pipe 4, and then through the liquid inlet pipe 18 to the liquid cooling pipe 20 to circulate inside the upper mold 2 and achieve heat exchange cooling. Then the coolant carrying heat will be delivered through the liquid outlet pipe 19 to the input end of the cooling conveying device for further cooling, thereby forming a cooling circulation pipeline and realizing the recycling of coolant.

[0032] Please see Figures 3-5 As a further embodiment of the overall equipment: a movable spring 21 is movably sleeved on the outside of the movable rod 12. The movable spring 21 is connected to one side of the sliding sleeve 14, and the other end of the movable spring 21 is in contact with the movable plate 11.

[0033] When the slider 15 rotates, it is equipped with a roller 22, which is engaged between two fixed blocks 16.

[0034] The control block 6 has multiple control holes 23.

[0035] The slider 15 has a groove 24, and the control sleeve 5 has multiple slide rails 25 fixed on one side, with the groove 24 and slide rails 25 being compatible.

[0036] An adapter block 26 is fixedly installed inside the fixed tube 4, and an adapter groove 27 is opened inside the control block 6, with the adapter block 26 located in the adapter groove 27.

[0037] Both the slide groove 24 and the slide rail 25 are designed with a T-shaped structure.

[0038] More specifically, when the coolant delivery rate needs to be adjusted according to actual usage requirements, firstly, rotate the moving plate 11 so that the moving plate 11 drives the moving hole 17 to rotate to a position concentric with the moving rod 12. Then, push the sliding sleeve 14, which will drive the moving rod 12 on one side to pass into the moving hole 17. The sliding sleeve 14 and the moving plate 11 will cooperate to compress the moving spring 21. Then, the inner wall of the sliding sleeve 14 will no longer limit the outer wall of the roller 22. Then, rotate the control sleeve 5 in the forward direction. The control sleeve 5 will drive the multiple slide rails 25 on one side to rotate in the forward direction. Then, the slide rails 25 will drive the slider 15 to rotate in the forward direction through the slide groove 24. Then, the slider 15 will drive the roller 22 on one side to roll out between the two fixed blocks 16. The roller 22 will drive the slide rails 22 to rotate in the forward direction. Block 15 slides outward along slide rail 25 and slide groove 24. Then, block 15 will drive connecting spring 13 to stretch outward. At the same time, control sleeve 5 will drive inner mating sleeve 9 to rotate in the forward direction. Since mating sleeve 9 and mating rod 8 are connected by threads, and the conical frame 7 is limited by the control block 6 and adjusting groove 10, the conical frame 7 and mating rod 8 cannot rotate. Then, mating rod 8 will drive conical frame 7 to slide. Due to the conical structure design of conical frame 7 and the inclined opening of adjusting groove 10, conical frame 7 will push multiple control blocks 6 to slide outward. The control blocks 6 will slide along adjusting groove 10, causing control blocks 6 to drive adapter groove 27 to spread outward along adapter block 26. Control block 6 moves multiple control holes 23. The movement of control holes 23, combined with the outward expansion of control block 6, increases the flow area at the corresponding position inside fixed pipe 4, thereby achieving the purpose of adjusting the coolant delivery flow rate. When it is necessary to reduce the flow area at the corresponding position inside fixed pipe 4, simply rotate control sleeve 5 in the reverse direction as described above. When the appropriate delivery flow rate is adjusted, stop rotating control sleeve 5, and allow slide rail 25 to move slider 15 between the corresponding two fixed blocks 16 in conjunction with slide groove 24. Then, connecting spring 13 resets and pulls slider 15 to slide inward along slide rail 25 and slide groove 24. Then, slider 15 drives roller 22 to engage between the corresponding two fixed blocks 16. Finally, release slide sleeve 14. The moving spring 21 resets and pushes the sliding sleeve 14 to slide reset. Then, the sliding sleeve 14 drives the moving rod 12 to slide reset. When the moving spring 21 is fully reset, the moving rod 12 no longer limits the moving plate 11 through the moving hole 17. Then, the moving plate 11 is rotated again, so that the moving plate 11 drives the moving hole 17 to rotate reset to a position that does not correspond to the moving rod 12. Then, the moving rod 12 limits and supports the sliding sleeve 14 to one side of the moving plate 11, so that the sliding sleeve 14 cannot slide easily. Then, the inner wall of the sliding sleeve 14 limits the outer side of the roller 22, so that the roller 22 and the slider 15 cannot move outward, thereby realizing the rotation limit of the control sleeve 5, ensuring the structural stability after the flow rate adjustment, and ensuring the stable operation of the cooling work.

[0039] In summary, when the equipment is in use or running, if it is necessary to cool the mold after injection molding, first open the cooling conveying device connected to the input end of the connecting pipe 3, so that the cooling conveying device can transport the cooled coolant through the connecting pipe 3 to the fixed pipe 4, and then through the liquid inlet pipe 18 to the liquid cooling pipe 20 to circulate inside the upper mold 2 and achieve heat exchange cooling. Then, the coolant carrying heat will be transported through the liquid outlet pipe 19 to the input end of the cooling conveying device for further cooling, thereby forming a cooling circulation pipeline and realizing the recycling of coolant.

[0040] When the coolant delivery rate needs to be adjusted according to actual usage requirements, first rotate the moving plate 11 so that the moving plate 11 drives the moving hole 17 to rotate to a position concentric with the moving rod 12. Then push the sliding sleeve 14, which will drive the moving rod 12 on one side to pass into the moving hole 17. The sliding sleeve 14 and the moving plate 11 will cooperate to compress the moving spring 21. Then the inner wall of the sliding sleeve 14 will no longer limit the outer wall of the roller 22. Then rotate the control sleeve 5 in the forward direction. The control sleeve 5 will drive the multiple slide rails 25 on one side to rotate in the forward direction. Then the slide rails 25 will drive the slider 15 to rotate in the forward direction through the slide groove 24. Then the slider 15 will drive the roller 22 on one side to roll out between the two fixed blocks 16. The roller 22 will drive the slider 15 along the... The slide rail 25 and slide groove 24 slide outwards, and then the slider 15 will drive the connecting spring 13 to stretch outwards. At the same time, the control sleeve 5 will drive the inner mating sleeve 9 to rotate in the forward direction. Since the mating sleeve 9 and the mating rod 8 are connected by threads, and the conical frame 7 is limited by the control block 6 and the adjusting groove 10, the conical frame 7 and the mating rod 8 cannot rotate. Then the mating rod 8 will drive the conical frame 7 to slide. Due to the conical structure design of the conical frame 7 and the inclined opening of the adjusting groove 10, the conical frame 7 will push multiple control blocks 6 to slide outwards, and the control blocks 6 will slide along the adjusting groove 10, so that the control blocks 6 drive the adapter groove 27 to spread outwards along the adapter block 26. Block 6 will drive multiple control holes 23 to move. The movement of control holes 23, in conjunction with the outward diffusion of control block 6, increases the flow area at the corresponding position inside the fixed pipe 4, thereby achieving the purpose of adjusting the coolant delivery flow rate. When it is necessary to reduce the flow area at the corresponding position inside the fixed pipe 4, simply rotate control sleeve 5 in the reverse direction as described above. When the appropriate delivery flow rate is adjusted, stop rotating control sleeve 5, and allow slide rail 25 to cooperate with slide groove 24 to drive slider 15 to move between the corresponding two fixed blocks 16. Then, connecting spring 13 resets and pulls slider 15 to slide inward along slide rail 25 and slide groove 24. Then, slider 15 drives roller 22 to engage between the corresponding two fixed blocks 16. Finally, release slide sleeve 14. The moving spring 21 resets and pushes the sliding sleeve 14 to slide reset. Then, the sliding sleeve 14 drives the moving rod 12 to slide reset. After the moving spring 21 is fully reset, the moving rod 12 no longer limits the moving plate 11 through the moving hole 17. Then, the moving plate 11 is rotated again, so that the moving plate 11 drives the moving hole 17 to rotate reset to a position that does not correspond to the moving rod 12. Then, the moving rod 12 limits and supports the sliding sleeve 14 to one side of the moving plate 11, so that the sliding sleeve 14 cannot slide easily. Then, the inner wall of the sliding sleeve 14 limits the outer side of the roller 22, so that the roller 22 and the slider 15 cannot move outward, thereby realizing the rotation limit of the control sleeve 5, ensuring the structural stability after the flow rate adjustment, and ensuring the stable operation of the cooling work.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling and shaping device for the production of plastic products, comprising a lower mold (1), wherein an upper mold (2) is detachably mounted on the lower mold (1), characterized in that: Speed ​​regulating devices are provided on the outer sides of the upper mold (2) and the lower mold (1). The speed regulating devices include a connecting pipe (3), a fixed pipe (4), a control sleeve (5), a control block (6), a conical frame (7), a mating rod (8), a mating sleeve (9), and an adjusting groove (10). The control sleeve (5) is rotatably connected to the connecting pipe (3) and the fixed pipe (4). The control block (6) is set inside the fixed pipe (4). The conical frame (7) is set inside the fixed pipe (4). The mating rod (8) is installed at one end of the conical frame (7). The mating sleeve (9) is threaded onto the outer side of the mating rod (8). The adjusting groove (10) is opened on the outer side of the conical frame (7). The control block (6) is connected to the conical frame (7) through the adjustment groove (10). A locking mechanism is provided on the outside of the connecting pipe (3). The locking mechanism includes a moving plate (11), a moving rod (12), a connecting spring (13), a sliding sleeve (14), a slider (15), a fixing block (16), and a moving hole (17). The moving plate (11) is installed on the outside of the connecting pipe (3), the moving rod (12) is installed on one side of the sliding sleeve (14), the connecting spring (13) is connected to two adjacent sliders (15), multiple fixing blocks (16) are installed on the outside of the connecting pipe (3), and the moving hole (17) is opened on the moving plate (11).

2. The rapid cooling and shaping device for the production of plastic products according to claim 1, characterized in that: The upper mold (2) and the lower mold (1) are connected to an inlet pipe (18) and an outlet pipe (19) on their outer sides. The lower mold (1) and the upper mold (2) are detachably provided with a liquid cooling pipe (20) on their inner sides. The inlet end of the inlet pipe (18) is fixedly connected to the outlet end of the fixed pipe (4).

3. A rapid cooling and shaping device for the production of plastic products according to any one of claims 1 or 2, characterized in that: A movable spring (21) is movably sleeved on the outside of the movable rod (12). The movable spring (21) is connected to one side of the sliding sleeve (14), and the other end of the movable spring (21) is in contact with the movable plate (11).

4. A rapid cooling and shaping device for the production of plastic products according to claim 3, characterized in that: The slider (15) is equipped with a roller (22) for rotation, and the roller (22) is engaged between two fixed blocks (16).

5. A rapid cooling and shaping device for the production of plastic products according to claim 1, characterized in that: The control block (6) has multiple control holes (23).

6. A rapid cooling and shaping device for the production of plastic products according to claim 4, characterized in that: The slider (15) has a groove (24), and the control sleeve (5) has multiple slide rails (25) fixed on one side. The groove (24) is adapted to the slide rails (25).

7. A rapid cooling and shaping device for the production of plastic products according to claim 5, characterized in that: An adapter block (26) is fixed inside the fixed tube (4), and an adapter groove (27) is opened inside the control block (6), with the adapter block (26) located in the adapter groove (27).

8. A rapid cooling and shaping device for the production of plastic products according to claim 6, characterized in that: Both the slide groove (24) and the slide rail (25) are T-shaped structures.

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