Plastic forming method, electronic equipment and traction extruder

Through the combination of vacuum tank and water-cooled setting device, the problem of dimensional instability in the plastic molding process is solved, high-quality and efficient production of finished plastic products is achieved, and the shape and size consistency of the product is ensured.

CN119116395APending Publication Date: 2024-12-13广州市启航实业有限公司
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Patent Information

Application Number
CN202411243708.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-03-28
Filing Date
2024-09-05
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

During the plastic molding process, the products after the molding mold may cause dimensional instability during the cooling process, affecting the shape and dimensional consistency of the final product.

Method used

The film is shaped by vacuum tank, and the surface of the semi-finished plastic product is cooled and fixed in combination with the water-cooled setting device. The first closing module is used to ensure the surface flatness and dimensional stability of the finished plastic product. If necessary, the second closing module is used to perform two. Adjustments are made to meet preset standards.

Benefits of technology

It improves the surface quality and dimensional stability of finished plastic products, reduces dimensional changes and deformation problems during the production process, and improves production efficiency and product batch consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a plastic forming method, electronic equipment and a traction extruder, the method is used for the traction extruder, and the method comprises the following steps: S1, when a plastic semi-finished product is pulled into a shaping mold cavity, adsorbing the surface of the plastic semi-finished product by using a vacuum tank to realize film pasting and shaping of the plastic semi-finished product; s2, in the process that the plastic semi-finished product passes through the shaping mold cavity, cooling shaping is conducted on the surface of the plastic semi-finished product; and S3, the plastic semi-finished product subjected to surface cooling and shaping passes through a first closing-in module, and a plastic finished product subjected to closing-in and shaping through the first closing-in module is obtained. The plastic product subjected to closing and shaping can be obtained, the internal compactness of the plastic product subjected to closing can be increased, the surface flatness can be improved, and then the obtained plastic product is relatively flat.
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Description

Technical Field

[0001] The present application relates to the technical field of plastic extrusion molding, for example, to a plastic molding method, an electronic device and a traction extruder. Background Art

[0002] The traction extruder is one of the important equipment in the extrusion production line, mainly used for stretching, cooling and shaping plastic products. The traction extruder has the functions of stretching, cooling and shaping. During the cooling process of the product, the traction extruder can shape it to make it stable in shape and consistent in size, so as to achieve the final shape required by the product.

[0003] When the product passes through the molding mold, it has to be cooled in the water tank before it is completely solidified. The size of the product may change, resulting in unstable product size.

[0004] Based on this, the present application provides a plastic molding method, an electronic device and a traction extruder to solve the problems existing in the above-mentioned technologies. Summary of the invention

[0005] The purpose of the present application is to provide a plastic molding method, an electronic device and a traction extruder to effectively prevent the problem of unstable product size.

[0006] The purpose of this application is achieved by the following technical solutions:

[0007] In a first aspect, the present application provides a plastic molding method for a traction extruder, the method comprising the following steps:

[0008] S1. When the semi-finished plastic product is pulled into the molding cavity, the surface of the semi-finished plastic product is adsorbed by the vacuum groove to achieve the molding of the semi-finished plastic product;

[0009] S2. During the process of the plastic semi-finished product passing through the molding cavity, the surface of the plastic semi-finished product is cooled and molded;

[0010] S3. The semi-finished plastic product after surface cooling and shaping passes through a first closing module to obtain a finished plastic product after the first closing module closes and shapes it.

[0011] In some possible implementations, the thickness of the plastic semi-finished product is not less than 5 mm.

[0012] In some possible implementations, in step S2, a water cooling and shaping device is used to cool and shape the surface of the semi-finished plastic product.

[0013] In some possible implementations, the water cooling and shaping device is disposed under the vacuum tank so that the surface of the semi-finished plastic product can be cooled and shaped while being transferred to the first closing module.

[0014] In some possible implementations, in step S3, the first closing module includes a trumpet-shaped outlet, and the minimum width of the outlet is equal to the preset width of the plastic finished product, so that the surface of the plastic semi-finished product shrinks when passing through the outlet of the first closing module.

[0015] In some possible implementations, when the plastic finished product after step S3 does not meet the preset finished product standard, the method further includes the following steps:

[0016] S4. Passing the finished plastic product through a second closing module to perform secondary closing on the finished plastic product.

[0017] In a second aspect, the present application further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any of the above-described methods when executing the computer program.

[0018] In a third aspect, the present application also provides a traction extruder, comprising:

[0019] A vacuum groove, wherein the vacuum groove is used to adsorb the surface of the semi-finished plastic product to achieve film-sticking and shaping of the semi-finished plastic product;

[0020] A shaping device, the shaping device is used to cool and shape the surface of the plastic semi-finished product;

[0021] A first closing module, which is used to close and shape the plastic semi-finished product after surface cooling and shaping to obtain a plastic finished product;

[0022] An electronic device, wherein the electronic device is electrically connected to the vacuum tank, the shaping device and the first closing module;

[0023] Wherein, the electronic device is the electronic device described in the second aspect.

[0024] In some possible implementations, the first closing module includes a trumpet-shaped outlet, and the minimum width of the outlet is equal to a preset width of the plastic finished product, so that the surface of the plastic semi-finished product shrinks when passing through the outlet of the first closing module.

[0025] In some possible implementations, the traction extruder further includes a second closing module, and the second closing module is used to perform secondary closing on the finished plastic product passing through the first closing module; and / or,

[0026] The shaping device comprises a water-cooling shaping device, and the water-cooling shaping device is arranged under the vacuum tank.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] The vacuum tank is used for adsorption and film shaping to ensure that the surface film of the semi-finished plastic product can be closely attached, thereby improving the accuracy of shaping. The cooling shaping ensures that the plastic solidifies quickly during the entire shaping process and maintains the required shape. Through the adjustment of the first closing module, the product can be automatically pulled smaller to improve the surface flatness and dimensional stability. In summary, the surface quality and dimensional stability of the finished plastic product can be improved, and the production efficiency can be improved throughout the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present application is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Figure 1 It is a schematic flow chart of a plastic molding method provided in an embodiment of the present application.

[0031] Figure 2 It is a schematic flow chart of another plastic molding method provided in an embodiment of the present application.

[0032] Figure 3 It is a structural block diagram of an electronic device provided in an embodiment of the present application.

[0033] Figure 4 This is a structural block diagram of a traction extruder provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solution in the present application will be described below in conjunction with the drawings and specific implementation methods of the specification of the present application. It should be noted that, under the premise of no conflict, the various implementation methods or technical features described below can be arbitrarily combined to form a new implementation method.

[0035] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any implementation or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other implementations or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0036] The following will first describe the plastic molding method and then describe the related equipment.

[0037] Method Embodiment

[0038] See also Figure 1 , Figure 1 It is a schematic flow chart of a plastic molding method provided in an embodiment of the present application.

[0039] The present application provides a plastic molding method for a traction extruder, the method comprising the following steps:

[0040] S101. When the semi-finished plastic product is pulled into the molding cavity, the surface of the semi-finished plastic product is adsorbed by the vacuum groove to achieve the molding of the semi-finished plastic product;

[0041] S102. During the process of the semi-finished plastic product passing through the molding cavity, cooling and molding the surface of the semi-finished plastic product;

[0042] S103. Pass the semi-finished plastic product after surface cooling and shaping through a first closing module to obtain a finished plastic product after the first closing module has closed and shaped it.

[0043] In the plastic molding process, the molding cavity is a structure that wraps the product. It can fix the product by various means such as vacuum adsorption to ensure that the product can fit the film or mold tightly, so as to achieve the shape and size of the product. The vacuum tank refers to an equipment component used to achieve film shaping in the process of engineering plastic molding, which has the function of adsorbing and maintaining the surface of the plastic product.

[0044] The semi-finished plastic product is first introduced into the molding cavity by (traction extruder), and the semi-finished plastic product that is not fully formed is introduced into the processing environment to prepare for the next molding process. After the semi-finished plastic product enters the molding cavity, the vacuum groove is used to adsorb its surface to achieve the film-sticking molding of the semi-finished plastic product. At the same time, the surface is cooled and molded to ensure that the plastic quickly solidifies and maintains the required shape when passing through the molding cavity. It can be considered that cooling and molding is to ensure that the final plastic product maintains the required structure and size throughout the process. The semi-finished plastic product after surface cooling and molding (the inside is close to a semi-solid state and the outside is hard) passes through the first closing module and undergoes the closing molding process, so that the shape of the finished product changes in this area to achieve the effect of automatic shrinking. The size of the outlet of the first closing module can be the predetermined cross-sectional size of the plastic product.

[0045] The benefits of this are that the vacuum tank is used to absorb and shape the film, ensuring that the surface film of the plastic semi-finished product can be tightly attached, improving the accuracy of shaping. Cooling shaping ensures that the plastic solidifies quickly during the entire shaping process and maintains the required shape. Through the adjustment of the first closing module, the product can be automatically pulled smaller, improving the surface flatness and dimensional stability.

[0046] In summary, the technical solution can improve the surface quality and dimensional stability of plastic finished products and increase production efficiency throughout the entire production process.

[0047] In some embodiments, the thickness of the plastic semi-finished product is not less than 5 mm. This is because plastic semi-finished products in this size range are more susceptible to shrinkage and other effects. During the shaping process, thicker plastic semi-finished products may be more prone to dimensional changes, surface shrinkage, and dents due to the uneven internal temperature distribution. Therefore, by ensuring that the thickness is not less than 5 mm, it helps to improve the stability of the product during the entire molding process. As an example, the thickness range of the plastic semi-finished product is not less than 5 mm and not more than 15 mm, not less than 3 mm and not more than 25 mm, and not less than 5 mm and not more than 25 mm.

[0048] In some embodiments, in step S2, a water-cooling shaping device is used to cool and shape the surface of the semi-finished plastic product. In specific applications, an air-cooling shaping device or a water-cooling shaping device can be used to cool and shape the surface of the semi-finished plastic product. Among them, the water-cooling shaping device can quickly reduce the surface temperature of the semi-finished plastic product through the high thermal conductivity of water, prompting it to quickly shape, which helps to complete the shaping process in a short time and improve production efficiency. Rapid cooling can reduce the thermal stress formed inside the plastic, which helps to avoid or reduce the internal deformation and defects of the product during the shaping process. Through water cooling, the temperature distribution of the plastic surface can be effectively controlled, the possible shrinkage, shrinkage and dent problems can be reduced, and the quality of the product surface can be improved. Compared with other means, water cooling has higher controllability. By adjusting the parameters of water cooling such as water flow rate and temperature, more precise control of the shaping process can be achieved to adapt to different plastic materials and product requirements.

[0049] In summary, by introducing a water-cooling shaping device, the surface temperature of the plastic semi-finished product can be quickly reduced during the shaping process, thereby achieving rapid and effective cooling and shaping, and improving the surface quality and dimensional stability of the product.

[0050] In some embodiments, the water cooling and shaping device is disposed under the vacuum tank so that the surface of the semi-finished plastic product can be cooled and shaped during the process of being transferred to the first closing module.

[0051] This position may be chosen to provide better control and contact when cooling and shaping the plastic surface. After the shaping film cavity completes the initial shaping, the plastic semi-finished product is moved forward by the conveying mechanism and gradually approaches the first closing module. Combining the cooling shaping with the process of conveying to the first closing module helps to more accurately control the shaping effect. Specifically, the position of the water-cooled shaping device and the adjustment of the water flow parameters can provide more flexible shaping control in the entire process. Combining the water-cooled shaping device with the vacuum tank and the first closing module helps to optimize the entire plastic molding process and improve the surface quality and production efficiency of the product.

[0052] In some embodiments, in step S3, the first closing module includes a trumpet-shaped outlet, and the minimum width of the outlet is equal to the preset width of the plastic finished product, so that the surface of the plastic semi-finished product shrinks when passing through the outlet of the first closing module. When the plastic semi-finished product passes through the outlet of the first closing module, since the minimum width of the outlet is equal to the preset width, the plastic semi-finished product will experience surface shrinkage when passing through the trumpet-shaped outlet, which helps to adjust the shape of the product to make it more consistent with the expected size and shape. Surface shrinkage helps to reduce or avoid possible dents and deformations of the product during the shaping process, and improves the overall appearance and quality of the product. By designing a trumpet-shaped outlet, consistency and controllability of surface shrinkage can be achieved, which helps to ensure that each product produced has similar surface features and improves the consistency of the entire production batch.

[0053] The preset width is, for example, 1CM to 200CM.

[0054] See also Figure 2 , Figure 2 It is a schematic flow chart of another plastic molding method provided in an embodiment of the present application.

[0055] In some embodiments, the method further comprises the steps of:

[0056] S104. When the finished plastic product does not meet the preset finished product standard, the finished plastic product is passed through a second closing module to perform a second closing on the finished plastic product.

[0057] After the plastic semi-finished product is processed by the first closing module, if the final plastic finished product does not meet the preset finished product standards, there will be problems such as unstable size and inaccurate shape. The introduction of the second closing module enables timely corrections in the event of non-compliance with the standards. Specifically, the second closing module includes a trumpet-shaped outlet, and the minimum width of the outlet of the second closing module is equal to the preset width of the plastic finished product, so that the surface of the plastic finished product after passing through the first closing module shrinks when passing through the outlet of the second closing module. By introducing the second closing in the production process, the generation of unqualified products can be reduced. This helps to reduce the scrap rate and improve production efficiency.

[0058] In a specific application scenario, the embodiment of the present application further provides a plastic molding method, the method comprising:

[0059] S1. When the semi-finished plastic product is drawn into the molding cavity, the surface of the semi-finished plastic product is adsorbed by the vacuum groove to achieve molding of the semi-finished plastic product. The thickness of the semi-finished plastic product is not less than 5 mm.

[0060] S2. When the semi-finished plastic product passes through the molding cavity, a water-cooling molding device is used to cool and mold the surface of the semi-finished plastic product, and the water-cooling molding device is arranged under the vacuum tank.

[0061] S3. The semi-finished plastic product after surface cooling and shaping passes through the first closing module to obtain the finished plastic product after the first closing module is closed and shaped. The first closing module includes a trumpet-shaped outlet, and the minimum width of the outlet is equal to the preset width of the finished plastic product, so that the surface of the semi-finished plastic product shrinks when passing through the outlet of the first closing module.

[0062] S4. When the finished plastic product does not meet the preset finished product standard, the finished plastic product is passed through a second closing module to perform a second closing on the finished plastic product.

[0063] Device Embodiment

[0064] An embodiment of the present application provides an electronic device, and its specific implementation is consistent with the implementation and technical effects recorded in the above method embodiment, and some contents are not repeated here.

[0065] The electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the method embodiments when executing the computer program.

[0066] See also Figure 3 , Figure 3 It is a structural block diagram of an electronic device provided in an embodiment of the present application.

[0067] The electronic device 10 may include, for example, at least one memory 11 , at least one processor 12 , and a bus 13 connecting different platform systems.

[0068] The memory 11 may include a (computer) readable medium in the form of a volatile memory, such as a random access memory (RAM) 111 and / or a cache memory 112 , and may further include a read-only memory (ROM) 113 .

[0069] The memory 11 also stores a computer program, which can be executed by the processor 12 so that the processor 12 implements the steps of any of the above methods.

[0070] The memory 11 may also include a utility 114 having at least one program module 115, such program module 115 including but not limited to: an operating system, one or more application programs, other program modules and program data, each of which or some combination may include the implementation of a network environment.

[0071] Accordingly, the processor 12 may execute the above-mentioned computer program, and may execute the utility 114 .

[0072] The processor 12 may employ one or more application specific integrated circuits (ASICs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs), or other electronic components.

[0073] The bus 13 may be a local bus representing one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or any of a variety of bus architectures.

[0074] The electronic device 10 may also communicate with one or more external devices such as a keyboard, a pointing device, a Bluetooth device, etc., and may also communicate with one or more devices that can interact with the electronic device 10, and / or communicate with any device (such as a router, a modem, etc.) that enables the electronic device 10 to communicate with one or more other computing devices. Such communication may be performed through an input / output interface 14. In addition, the electronic device 10 may also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and / or a public network, such as the Internet) through a network adapter 15. The network adapter 15 may communicate with other modules of the electronic device 10 through the bus 13. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 10 in actual applications, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage platforms.

[0075] Traction Extruder Example

[0076] See also Figure 4 , Figure 4 : is a structural block diagram of a traction extruder provided in an embodiment of the present application. The present application embodiment provides a traction extruder, comprising:

[0077] A vacuum groove, wherein the vacuum groove is used to adsorb the surface of the semi-finished plastic product to achieve film-sticking and shaping of the semi-finished plastic product;

[0078] A shaping device, the shaping device is used to cool and shape the surface of the plastic semi-finished product;

[0079] A first closing module, which is used to close and shape the plastic semi-finished product after surface cooling and shaping to obtain a plastic finished product;

[0080] An electronic device, wherein the electronic device is electrically connected to the vacuum tank, the shaping device and the first closing module;

[0081] The electronic device is the electronic device described in the device embodiment.

[0082] In some embodiments, the first closing module includes a trumpet-shaped outlet, and the minimum width of the outlet is equal to a preset width of the plastic finished product, so that the surface of the plastic semi-finished product shrinks when passing through the outlet of the first closing module.

[0083] In some embodiments, the traction extruder further includes a second closing module, and the second closing module is used to perform secondary closing on the finished plastic product passing through the first closing module; and / or,

[0084] The shaping device comprises a water-cooling shaping device, and the water-cooling shaping device is arranged under the vacuum tank.

[0085] Computer Readable Storage Medium Embodiments

[0086] The embodiment of the present application also provides a computer-readable storage medium, the specific embodiment of which is consistent with the embodiment recorded in the above method embodiment and the technical effects achieved, and some contents will not be repeated here.

[0087] The computer-readable storage medium stores a computer program, and when the computer program is executed by at least one processor, the steps of any of the above methods or the functions of any of the above electronic devices are implemented.

[0088] The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. In an embodiment of the present application, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by an instruction execution system, device or device or used in combination with it. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0089] The computer-readable storage medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable storage medium may also be any computer-readable medium that can send, propagate, or transmit a program for use by an instruction execution system, an apparatus, or a device or for use in combination with it. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above. The program code for performing the operation of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and also conventional procedural programming languages ​​such as C language or similar programming languages. The program code may be executed entirely on a user computing device, partially on a user device, as an independent software package, partially on a user computing device, partially on a remote computing device, or entirely on a remote computing device or server. Where a remote computing device is involved, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0090] It should be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b and c can be single or multiple. It is worth noting that "at least one" can also be interpreted as "one or more items".

[0091] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are configured to distinguish similar objects, and are not necessarily configured to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0092] This application is explained from the perspectives of purpose of use, effectiveness, progress and novelty, and has met the functional enhancement and usage requirements emphasized by the Patent Law. The above description and drawings of this application are only the preferred embodiments of this application, and are not intended to limit this application. Therefore, all structures, devices, features, etc. that are similar or analogous to this application, that is, all equivalent replacements or modifications made in accordance with the scope of the patent application of this application, should fall within the scope of protection of the patent application of this application.

Claims

1. A plastic molding method, characterized in that: For traction extruder, the method comprises the following steps: S1. When the semi-finished plastic product is pulled into the molding cavity, the surface of the semi-finished plastic product is adsorbed by the vacuum groove to achieve the molding of the semi-finished plastic product; S2. During the process of the plastic semi-finished product passing through the molding cavity, the surface of the plastic semi-finished product is cooled and molded; S3. The semi-finished plastic product after surface cooling and shaping passes through a first closing module to obtain a finished plastic product after the first closing module closes and shapes it.

2. The plastic molding method according to claim 1, characterized in that: The thickness of the plastic semi-finished product is not less than 5 mm.

3. The plastic molding method according to claim 1, characterized in that: In step S2, a water cooling and shaping device is used to cool and shape the surface of the plastic semi-finished product.

4. The plastic molding method according to claim 3, characterized in that: The water cooling and shaping device is arranged under the vacuum tank so that the surface of the semi-finished plastic product can be cooled and shaped during the process of being conveyed to the first closing module.

5. The plastic molding method according to claim 1, characterized in that: In step S3, the first closing module comprises a trumpet-shaped outlet, and the minimum width of the outlet is equal to the preset width of the plastic finished product, so that the surface of the plastic semi-finished product shrinks when passing through the outlet of the first closing module.

6. The plastic molding method according to claim 1, characterized in that: When the plastic finished product after step S3 does not meet the preset finished product standard, the method further includes the following steps: S4. Passing the finished plastic product through a second closing module to perform secondary closing on the finished plastic product.

7. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method according to any one of claims 1 to 6 when executing the computer program.

8. A traction extruder, characterized in that: include: A vacuum groove, wherein the vacuum groove is used to adsorb the surface of the semi-finished plastic product to achieve film-sticking and shaping of the semi-finished plastic product; A shaping device, the shaping device is used to cool and shape the surface of the plastic semi-finished product; A first closing module, which is used to close and shape the plastic semi-finished product after surface cooling and shaping to obtain a plastic finished product; An electronic device, wherein the electronic device is electrically connected to the vacuum tank, the shaping device and the first closing module; Wherein, the electronic device is the electronic device described in claim 7.

9. The traction extruder according to claim 8, characterized in that The first closing module comprises a trumpet-shaped outlet, the minimum width of which is equal to a preset width of the finished plastic product, so that the surface of the semi-finished plastic product shrinks when passing through the outlet of the first closing module.

10. The traction extruder according to claim 8, characterized in that The traction extruder further comprises a second closing module, and the second closing module is used for performing secondary closing on the finished plastic product passing through the first closing module; and / or, The shaping device comprises a water-cooling shaping device, and the water-cooling shaping device is arranged under the vacuum tank.