Production device of PE film

By introducing adjustment components and limit blocks into the PE membrane production device, the problem of troubles in disassembly of the heating cylinder is solved, convenient disassembly and maintenance is achieved, and equipment maintenance efficiency and safety are improved.

CN223290157UActive Publication Date: 2025-09-02JIAXING HONGYU PLASTIC FILM TECH CO LTD
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Patent Information

Application Number
CN202422082274.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-09-02
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

The heating cylinder of the traditional PE film production device needs to be disassembled when disassembling, which leads to troublesome disassembly and inefficient efficiency, affecting the equipment maintenance efficiency.

Method used

A PE membrane production device is designed, by introducing adjustment components and limit blocks into the feed mechanism, allowing the heating cylinder to be removed without dismantling the feed funnel, and the threaded connection between the connecting pipe and the feed pipe and the fixing of the storage tank are achieved for the convenient disassembly and maintenance of the heating cylinder.

Benefits of technology

It realizes convenient disassembly and maintenance of the heating cylinder, improves equipment maintenance efficiency, ensures product hygiene and safety, and improves operational safety through limiting holes and barrier rings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of PE (polyethylene) film production, in particular to a PE film production device, which is characterized by comprising a workbench, a feeding mechanism arranged on the workbench and a production mechanism, the feeding mechanism comprises a first fixing plate arranged on the workbench, and a storage groove is formed in the first fixing plate; the heating cylinder is arranged on the first fixing plate, a feeding cavity is formed in the heating cylinder, a feeding opening is formed in the heating cylinder, and the feeding opening communicates with the feeding cavity; the feeding funnel is arranged above the heating cylinder; the feeding pipe is arranged below the feeding funnel, and the feeding pipe is connected with the bottom of the feeding funnel; the adjusting assembly comprises a connecting pipe and an adjusting rod; one end of the adjusting rod is hinged to the first fixing plate, the other end of the adjusting rod is connected with the feeding hopper, and the connecting pipe is arranged between the feeding port and the feeding pipe. The utility model has the beneficial effects that the heating cylinder can be detached, maintained and disinfected under the condition that the funnel is not detached, and the maintenance efficiency of equipment can be improved while the detachment is convenient.
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Description

Technical Field

[0001] The utility model belongs to the technical field of PE film production, in particular to a PE film production device. Background Art

[0002] PE film, or polyethylene film, refers to a film produced from PE granules. PE film is moisture-resistant and has low moisture permeability. Depending on the manufacturing method and control methods, polyethylene film can be produced in various performance categories, including low-density, medium-density, high-density polyethylene, and cross-linked polyethylene. PE film is typically produced using a cast film machine. PE granules are heated in a heating cylinder and extruded from a film head. After forming the film, it is cooled and wound.

[0003] However, dust and other pollutants will enter the heating cylinder after long-term use. In order to ensure the hygiene and safety of the product, the heating cylinder needs to be disassembled and maintained and disinfected regularly. Since the traditional heating cylinder is connected to the feed funnel, the feed funnel needs to be removed when disassembling. The disassembly is more troublesome and inefficient. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned technical problems and provide a PE film production device, which can disassemble the heating cylinder and perform maintenance and disinfection without disassembling the funnel, thereby facilitating disassembly and improving the efficiency of equipment maintenance.

[0005] The purpose of the utility model is achieved as follows: A PE film production device includes a workbench, a production mechanism and a feeding mechanism arranged on the workbench, wherein the feeding mechanism includes:

[0006] A first fixing plate is provided on the workbench, wherein the first fixing plate is provided with a storage slot;

[0007] A heating cylinder is provided on the first fixing plate, wherein a feed cavity is provided in the heating cylinder, and a feed port is provided on the heating cylinder, wherein the feed port is communicated with the feed cavity;

[0008] A feeding funnel is arranged above the heating cylinder;

[0009] A feed pipe is provided below the feed hopper and connected to the bottom of the feed hopper;

[0010] An adjustment assembly, the adjustment assembly comprising a connecting pipe and an adjustment rod;

[0011] Among them, a screw is provided in the feed chamber, one end of the adjusting rod is hinged to the first fixed plate, and the other end is connected to the feed funnel, the connecting pipe is arranged between the feed port and the feed pipe, one end of the connecting pipe is threadedly connected to the feed pipe, and the other end is connected to the feed port.

[0012] The utility model is further configured as follows: a limit block is provided on the feed port, a limit hole is provided on the limit block, the limit hole is communicated with the feed port, an annular protrusion is provided in the limit hole, the connecting pipe is inserted into the limit hole, and the bottom of the connecting pipe abuts against the annular protrusion.

[0013] The utility model is further configured as follows: the adjustment component further includes:

[0014] a first barrier ring, the first barrier ring being disposed above the annular protrusion, the first barrier ring being clamped in the limiting hole, and the first barrier ring abutting against the connecting pipe at one end thereof facing the feeding pipe;

[0015] The second barrier ring is arranged above the first barrier ring, the connecting tube is inserted into the second barrier ring, and the inner wall of the second barrier ring abuts against the outer peripheral wall of the connecting tube.

[0016] The utility model is further configured as follows: the adjusting rod further includes:

[0017] An opening and closing chute is provided at the end of the adjusting rod away from the first fixing plate;

[0018] An opening and closing plate is arranged in the opening and closing chute, and the opening and closing plate is slidably connected to the opening and closing chute.

[0019] The utility model is further configured as follows: the production mechanism includes:

[0020] a second fixing plate, disposed on the workbench;

[0021] An extrusion film head is arranged at one end of the heating cylinder away from the feed port;

[0022] a cooling roller, which is arranged on the second fixed plate, and is arranged on a side of the extrusion film head away from the heating cylinder, and is rotatably connected to the second fixed plate;

[0023] The tensioning roller is arranged on the second fixed plate. The tensioning roller is arranged on the side of the cooling roller away from the extrusion film head. The tensioning roller is rotatably connected to the second fixed plate.

[0024] The utility model is further configured as follows: the production mechanism further includes:

[0025] A winding roller is arranged on the second fixed plate. The winding roller is arranged on the side of the tensioning roller away from the cooling roller. The winding roller is rotatably connected to the second fixed plate.

[0026] The present invention is further configured as follows: the cooling roller, the tensioning roller and the winding roller are all provided with a servo motor at one end facing the second fixed plate, and the servo motor is arranged at the end of the second fixed plate away from the cooling roller.

[0027] By adopting the above technical solution, the utility model has at least the following beneficial effects:

[0028] 1. Through the cooperation of the storage slot, the adjusting rod and the connecting pipe, the connecting pipe is threadedly connected to the feed pipe. The connecting pipe can be sleeved under the feed pipe and moved up and down through the threads on the surface of the feed pipe. When disassembling the heating tube, the connecting pipe can be moved up first, and then the adjusting rod is rotated to transfer the connecting pipe to the storage slot and fix it, so that the feed funnel and the feed pipe are moved as a whole to the first fixed plate and fixed, so that the heating tube can be directly disassembled, which facilitates disassembly and assembly while improving maintenance efficiency.

[0029] 2. The storage groove set on the first fixed plate can not only fix the connecting pipe, feeding pipe and feeding funnel during disassembly, but also protect the connecting pipe and feeding pipe, preventing contaminants from entering the connecting pipe and heating pipe when disassembling the heating cylinder, thereby ensuring the hygiene and safety of the product.

[0030] 3. The connecting pipe and the feed pipe are threaded, which is convenient for disassembly and disinfection and maintenance, and can further ensure the safety of the product.

[0031] 4. A limit hole is set in the limit block to improve the stability of the feeding mechanism during feeding. A first barrier ring and a second barrier ring are set in the limit hole to prevent the temperature in the heating tube from being transferred to the connecting pipe, thereby playing a role of heat insulation and preventing workers from being scalded when moving the heating tube up and down, thereby protecting the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is one of the schematic diagrams of the production device of the PE film of the utility model;

[0033] Figure 2 This is the second schematic diagram of the production device of the PE film of the utility model;

[0034] Figure 3 It is a schematic diagram of part A of the utility model;

[0035] Figure 4 This is a cross-sectional view of the feeding mechanism of the utility model;

[0036] Figure 5 It is a schematic diagram of part B of the utility model;

[0037] Figure 6 This is a schematic diagram of the first barrier ring and the second barrier ring of the utility model;

[0038] The figures are marked as follows: 1-workbench, 2-feeding mechanism, 3-production mechanism, 21-first fixed plate, 22-heating cylinder, 23-feeding funnel, 24-feeding pipe, 25-adjusting assembly, 26-limiting block, 31-second fixed plate, 32-extrusion film head, 33-cooling roller, 34-tensioning roller, 35-winding roller, 36-servo motor, 221-feeding port, 222-feeding chamber, 223-screw, 251-adjusting rod, 252-connecting pipe, 253-first blocking ring, 254-second blocking ring, 255-opening and closing slide, 256-opening and closing plate, 261-limiting hole, 262-annular protrusion. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further described in subsequent figures.

[0041] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-6 :

[0042] Example 1.

[0043] This embodiment provides a PE film production device, including a workbench 1, a production mechanism 3 and a feeding mechanism 2 arranged on the workbench 1, wherein the feeding mechanism 2 includes:

[0044] A first fixing plate 21 is provided on the workbench 1 and has a storage slot;

[0045] The heating cylinder 22 is provided on the first fixed plate 21. A feeding cavity 222 is provided in the heating cylinder 22. A feeding port 221 is provided on the heating cylinder 22. The feeding port 221 is communicated with the feeding cavity 222.

[0046] The feeding funnel 23 is arranged above the heating cylinder 22;

[0047] The feed pipe 24 is provided below the feed funnel 23 and is connected to the bottom of the feed funnel 23;

[0048] The adjusting assembly 25 includes a connecting pipe 252 and an adjusting rod 251;

[0049] Among them, a screw 223 is provided in the feed chamber 222, one end of the adjusting rod 251 is hinged to the first fixed plate 21, and the other end is connected to the feed funnel 23, and the connecting pipe 252 is arranged between the feed port 221 and the feed pipe 24, one end of the connecting pipe 252 is threadedly connected to the feed pipe 24, and the other end is connected to the feed port 221.

[0050] like Figure 1-5 As shown, the adjusting rod 251 is provided with a through hole at one end facing the feed pipe 24, the bottom of the feed funnel 23 and the feed pipe 24 are provided with external threads, and the through hole is provided with an internal thread. The feed pipe 24 is threadedly connected to the adjusting rod 251, the feed funnel 23 is threadedly connected to the adjusting rod 251, and the top of the feed pipe 24 is connected to the bottom of the feed funnel 23 through a through hole.

[0051] The connecting pipe 252 is arranged below the feed pipe 24 and is provided with an internal thread. The connecting pipe 252 can be sleeved under the feed pipe 24 and threadedly connected to the feed pipe 24. The bottom of the connecting pipe 252 is inserted into the feed port 221 and communicated with the feed cavity 222.

[0052] When the feeding mechanism 2 is working, raw materials such as PE particles are added from the feeding funnel 23, and the raw materials enter the feeding chamber 222 through the feeding pipe 24 and the connecting pipe 252. The heating cylinder 22 heats up to melt the raw materials. A driving motor is provided at the end of the first fixed plate 21 away from the heating cylinder 22. The output shaft end of the driving motor is connected to the screw 223. The driving motor can drive the screw 223 to mix the melted raw materials and transfer them to the production mechanism 3 for production.

[0053] The first fixing plate 21 is used to fix the heating tube 22. One end of the adjusting rod 251 is connected to the top of the first fixing plate 21. A fixing pin is provided on the top of the first fixing plate 21. The fixing pin passes through the adjusting rod 251, so that the adjusting rod 251 is hinged to the first fixing plate 21. The adjusting rod 251 can rotate and move around the fixing pin. Before disassembling the heating tube 22, the feeding funnel 23, the feeding pipe 24 and the connecting pipe 252 at the other end of the adjusting rod 251 can be driven to move, thereby preventing the feeding funnel 23 and other structures from affecting the disassembly, thereby improving the disassembly and maintenance efficiency of the heating tube 22.

[0054] A rectangular storage groove is provided on the top of the first fixed plate 21. The storage groove can be used to place and fix the connecting pipe 252 and the feeding pipe 24 to prevent the connecting pipe 252 and the feeding pipe 24 from being contaminated during the removal of the heating cylinder 22, thereby affecting product hygiene.

[0055] The connecting tube 252 can be moved up and down relative to the feed tube 24 through a thread. When the heating cylinder 22 needs to be disassembled, the storage tank is first cleaned and disinfected, and then the connecting tube 252 is rotated upward so that the bottom of the connecting tube 252 leaves the feed port 221. After that, the adjusting rod 251 can be rotated to move the connecting tube 252 and the feed tube 24 and fix them in the storage tank, so as to prevent the connecting tube 252 and the feed tube 24 from being contaminated during the disassembly process and improve the disassembly, assembly and maintenance efficiency of the heating cylinder 22.

[0056] The connecting tube 252 can be made of hard materials such as stainless steel. The present invention preferably uses polyimide. Polyimide has good strength and high temperature resistance, and polyimide is a transparent material, which allows the staff to observe with the naked eye at any time whether there is raw material in the connecting tube 252, thereby facilitating the staff to judge the time to disassemble the heating tube 22, preventing the heating tube 22 from being disassembled before the raw materials in the heating tube 22 are used up, and reducing the waste of raw materials.

[0057] The connecting pipe 252 is connected to the feeding pipe 24 by threads. The connecting pipe 252 can be removed at any time by rotating the connecting pipe 252 when maintenance or replacement is required, thereby improving the maintenance and disassembly efficiency of the feeding mechanism 2.

[0058] When the PE film production device is working, silver ion antibacterial agent is added to the raw materials. Silver ions have broad-spectrum antibacterial properties and are not prone to causing allergic symptoms. They can make the product have good antibacterial ability and be safer and more hygienic.

[0059] Example 2:

[0060] This embodiment provides a PE film production device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] A limiting block 26 is provided on the feed port 221 , and a limiting hole 261 is provided on the limiting block 26 . The limiting hole 261 is communicated with the feed port 221 , and an annular protrusion 262 is provided in the limiting hole 261 . The connecting pipe 252 is inserted into the limiting hole 261 , and the bottom of the connecting pipe 252 abuts against the annular protrusion 262 .

[0062] like Figure 1-5 As shown, the limit block 26 is arranged on the heating tube 22, and the limit block 26 is connected to the heating tube 22 by bolts. When the feeding mechanism 2 is working, the bottom of the connecting tube 252 is inserted into the limit hole 261 and abuts against the annular protrusion 262 in the limit hole 261. The limit hole 261 is used to limit the connecting tube 252 to prevent the connecting tube 252 from swinging due to the influence of the adjusting rod 251 during work, thereby causing leakage and waste of raw materials and affecting the production efficiency of the device.

[0063] An annular protrusion 262 is provided in the limiting hole 261. The annular protrusion 262 is used to prevent the connecting tube 252 from moving downward too much when inserted into the limiting hole 261, and to prevent the top of the connecting tube 252 from being disconnected from the feed tube 24 when the bottom of the connecting tube 252 goes too deep into the limiting hole 261, thereby affecting the working efficiency of the device.

[0064] Example 3:

[0065] This embodiment provides a PE film production device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] The adjustment component 25 also includes:

[0067] The first barrier ring 253 is disposed above the annular protrusion 262 and is engaged in the limiting hole 261 . One end of the first barrier ring 253 facing the feed pipe 24 abuts against the connecting pipe 252 .

[0068] The second barrier ring 254 is disposed above the first barrier ring 253 , the connecting tube 252 is inserted into the second barrier ring 254 , and the inner wall of the second barrier ring 254 abuts against the outer peripheral wall of the connecting tube 252 .

[0069] like Figure 4-5 As shown, the first barrier ring 253 and the second barrier ring 254 are of an integrated design. The first barrier ring 253 and the second barrier ring 254 are used to reduce the upward transfer of heat in the heating tube 22, preventing the temperature of the connecting tube 252 from being too high when the staff rotates the connecting tube 252, thereby preventing burns and other safety problems, thereby protecting the safety of the staff.

[0070] The first barrier ring 253 and the second barrier ring 254 are both made of ceramics. Ceramics have good thermal insulation properties, corrosion resistance, chemical stability, and high strength, and can meet the working requirements of the first barrier ring 253 and the second barrier ring 254.

[0071] Example 4:

[0072] This embodiment provides a PE film production device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0073] The adjusting rod 251 further includes:

[0074] An opening and closing chute 255 is provided at the end of the adjusting rod 251 away from the first fixing plate 21;

[0075] The opening and closing plate 256 is disposed in the opening and closing chute 255 , and the opening and closing plate 256 is slidably connected to the opening and closing chute 255 .

[0076] like Figure 1-5 As shown, the opening and closing chute 255 is arranged between the feeding funnel 23 and the feeding pipe 24, and the opening and closing plate 256 is inserted into the feeding chute and can move back and forth in the feeding chute.

[0077] The opening and closing plate 256 is used to control the opening and closing of the feed funnel 23. When there is enough raw material, the opening and closing plate 256 can be controlled to be inserted into the opening and closing chute 255 to stop feeding. When the raw material is insufficient, the opening and closing plate 256 can be controlled to be pulled out of the opening and closing chute 255 to allow the raw material in the feed funnel 23 to fall and enter the feed cavity 222.

[0078] At the same time, when disassembling the heating cylinder 22, the opening and closing plate 256 can be inserted into the opening and closing slide 255 to prevent dust and other pollutants from entering the feed pipe 24 and the connecting pipe 252 through the feed funnel 23 during disassembly, thereby improving the hygiene and safety of the feeding mechanism 2.

[0079] Example 5:

[0080] This embodiment provides a PE film production device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0081] Production organization 3 includes:

[0082] The second fixing plate 31 is provided on the workbench 1;

[0083] The extrusion film head 32 is arranged at the end of the heating cylinder 22 away from the feed port 221;

[0084] The cooling roller 33 is provided on the second fixed plate 31. The cooling roller 33 is provided on the side of the extrusion film head 32 away from the heating cylinder 22. The cooling roller 33 is rotatably connected to the second fixed plate 31.

[0085] The tensioning roller 34 is disposed on the second fixed plate 31 . The tensioning roller 34 is disposed on a side of the cooling roller 33 away from the film extrusion head 32 . The tensioning roller 34 is rotatably connected to the second fixed plate 31 .

[0086] like Figure 1-2 As shown, the heating cylinder 22 is provided with a discharge port at one end away from the feed port 221 , and the discharge port is connected to the extrusion film head 32 . The screw 223 can extrude the raw materials in the heating cylinder 22 from the discharge port to form a PE film through the extrusion film head 32 .

[0087] The cooling roller 33 and the tensioning roller 34 are arranged in parallel. Since the temperature of the PE film extruded by the extrusion film head 32 is relatively high, the cooling roller 33 can quickly cool and solidify the PE film, maintain the stability of its shape and size, and improve product quality.

[0088] The tensioning roller 34 can adjust the tension of the PE film to ensure that the PE film maintains a certain tension during production and transportation, preventing the PE film from wrinkling during transportation and affecting product quality and appearance. At the same time, it can also stabilize the production speed of the product and improve production efficiency.

[0089] Production organization 3 also includes:

[0090] The winding roller 35 is disposed on the second fixed plate 31 . The winding roller 35 is disposed on a side of the tensioning roller 34 away from the cooling roller 33 . The winding roller 35 is rotatably connected to the second fixed plate 31 .

[0091] like Figure 1-2 As shown, the winding roller 35 is arranged parallel to the tensioning roller 34. The winding roller 35 can wind up the produced PE film, reduce wrinkles of the product, improve product quality, and automate the process to improve the production efficiency of the production device.

[0092] The cooling roller 33 , the tensioning roller 34 and the winding roller 35 are each provided with a servo motor 36 at one end facing the second fixed plate 31 . The servo motor 36 is provided at the end of the second fixed plate 31 away from the cooling roller 33 .

[0093] like Figure 1-2 As shown, the cooling roller 33, the tensioning roller 34 and the winding roller 35 are all driven to rotate by a driving motor, and the PE film is automatically processed, thereby improving production efficiency and reducing labor costs.

[0094] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PE film production device, comprising a workbench (1), a feeding mechanism (2) and a production mechanism (3) arranged on the workbench (1), characterized in that: The feeding mechanism (2) comprises: A first fixing plate (21) is arranged on the workbench (1), and a storage groove is provided on the first fixing plate (21); A heating cylinder (22) is arranged on the first fixing plate (21), a feeding cavity (222) is provided in the heating cylinder (22), a feeding port (221) is provided on the heating cylinder (22), and the feeding port (221) is communicated with the feeding cavity (222); A feeding funnel (23) is arranged above the heating cylinder (22); A feeding pipe (24) is provided below the feeding funnel (23), and the feeding pipe (24) is connected to the bottom of the feeding funnel (23); An adjusting assembly (25), the adjusting assembly (25) comprising a connecting pipe (252) and an adjusting rod (251); A screw (223) is provided in the feed chamber (222), one end of the adjusting rod (251) is hinged to the first fixed plate (21), and the other end is connected to the feed funnel (23), and the connecting pipe (252) is provided between the feed port (221) and the feed pipe (24), one end of the connecting pipe (252) is threadedly connected to the feed pipe (24), and the other end is connected to the feed port (221).

2. The production device of PE film according to claim 1, characterized in that, The feed port (221) is provided with a limiting block (26), the limiting block (26) is provided with a limiting hole (261), the limiting hole (261) is communicated with the feed port (221), an annular protrusion (262) is provided in the limiting hole (261), the connecting pipe (252) is inserted into the limiting hole (261), and the bottom of the connecting pipe (252) abuts against the annular protrusion (262).

3. The production device of PE film according to claim 2, characterized in that, The adjustment component (25) further comprises: a first barrier ring (253), the first barrier ring (253) being arranged above the annular protrusion (262), the first barrier ring (253) being clamped in the limiting hole (261), and the first barrier ring (253) being in contact with the connecting pipe (252) at one end facing the feeding pipe (24); A second barrier ring (254) is provided above the first barrier ring (253), the connecting tube (252) is inserted into the second barrier ring (254), and the inner wall of the second barrier ring (254) abuts against the outer peripheral wall of the connecting tube (252).

4. The production device of PE film according to claim 1, characterized in that, The adjusting rod (251) further comprises: An opening and closing chute (255) is provided at an end of the regulating rod (251) away from the first fixing plate (21); An opening and closing plate (256) is arranged in the opening and closing chute (255), and the opening and closing plate (256) is slidably connected to the opening and closing chute (255).

5. The production device of PE film according to claim 1, characterized in that, The production mechanism (3) comprises: A second fixing plate (31) is arranged on the workbench (1); An extrusion film head (32) is arranged at an end of the heating cylinder (22) away from the feed port (221); A cooling roller (33) is arranged on the second fixed plate (31), the cooling roller (33) is arranged on the side of the extrusion film head (32) away from the heating cylinder (22), and the cooling roller (33) is rotatably connected to the second fixed plate (31); A tensioning roller (34) is arranged on the second fixed plate (31), and the tensioning roller (34) is arranged on the side of the cooling roller (33) away from the extrusion film head (32). The tensioning roller (34) is rotatably connected to the second fixed plate (31).

6. The production device of PE film according to claim 5, characterized in that: The production mechanism (3) further comprises: A winding roller (35) is arranged on the second fixed plate (31), and the winding roller (35) is arranged on the side of the tensioning roller (34) away from the cooling roller (33). The winding roller (35) is rotatably connected to the second fixed plate (31).

7. The production device of PE film according to claim 6, characterized in that: The cooling roller (33), the tensioning roller (34) and the winding roller (35) are all provided with a servo motor (36) at one end facing the second fixed plate (31), and the servo motor (36) is arranged at the end of the second fixed plate (31) away from the cooling roller (33).