High-efficiency extruder for polyethylene film production

By installing stabilizing components and leveling rollers on the extrusion equipment, the problem of uneven stress caused by different wear levels during film transport is solved, achieving stable film transport and leveling, and improving the stability and uniformity of winding.

CN224530148UActive Publication Date: 2026-07-21JIANGSU RENXING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU RENXING TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing high-efficiency extruders used for polyethylene film production, uneven rotational resistance can occur during the conveying process due to different surface wear of traction rollers, guide rollers, etc., resulting in uneven stress on the film and problems such as tension fluctuations or lateral deviation.

Method used

A stabilizing component is installed on the extrusion equipment, including a support frame, a bidirectional screw, and stabilizing wheels. By adjusting the spacing and angle of the stabilizing wheels, the film is conveyed in a limited and stable manner. The film is then flattened and laminated by a leveling roller, thereby improving the stability of the transmission.

Benefits of technology

It improves the stability of film processing and winding, avoids tension fluctuations and deviations of the film during operation, and enhances the uniformity and flatness of film delivery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high-efficiency extruders for polyethylene film production, including extrusion equipment and be set on the winding roller and traction roller of extrusion equipment, including setting the stabilizing assembly of extrusion equipment top, the stabilizing assembly includes support frame, bidirectional screw and stabilizing wheel;Wherein, the support frame and stabilizing wheel are set on the top of extrusion equipment, and symmetrically distributed, for limiting film, the bidirectional screw is set below support frame, for moving adjustment to support frame and stabilizing wheel, the utility model is set on extrusion equipment by stabilizing assembly, by rotating the bidirectional screw on stabilizing assembly, the interval of two groups of stabilizing wheels can be adjusted, it is convenient to limit the film of transmission winding, improve the stability when film processing winding.
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Description

Technical Field

[0001] This utility model relates to the field of polyethylene film production technology, and in particular to a high-efficiency extruder for polyethylene film production. Background Technology

[0002] An extruder for polyethylene film production is a specialized piece of equipment that transforms PE granules into continuous films through heating and melting, screw extrusion, and die forming. Its core functions include plasticizing, mixing, extruding, and processing PE raw materials into films, and it is widely used in packaging, agriculture, and industrial protection.

[0003] Existing high-efficiency extruders for polyethylene film production have the following shortcomings: After the extruder plasticizes and extrudes raw materials such as polyethylene, the film needs to be smoothly transferred to the winding rollers through a conveying device to complete the final winding. However, during the conveying process, the film is prone to uneven rotational resistance due to different wear levels on the surfaces of the traction rollers, guide rollers, etc. This causes differences in the frictional force on different parts of the film, resulting in uneven stress on the film during operation, which in turn leads to tension fluctuations or lateral deviations.

[0004] Therefore, a high-efficiency extruder for polyethylene film production is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the above-mentioned problems with a high-efficiency extruder for polyethylene film production, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a high-efficiency extruder for polyethylene film production, which solves the problem that during the current extrusion process, the film is prone to uneven rotational resistance due to different wear levels on the surfaces of the traction rollers, guide rollers, etc., which leads to uneven force on the film during operation, resulting in tension fluctuations or lateral deviation.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency extruder for polyethylene film production, comprising an extrusion device and a take-up roller and a traction roller disposed on the extrusion device, including:

[0009] A stabilizing assembly, disposed at the top of the extrusion equipment, includes a support frame, a bidirectional screw, and a stabilizing wheel;

[0010] The support frame and stabilizing wheel are located at the top of the extrusion equipment and are symmetrically distributed to limit the film. The bidirectional screw is located below the support frame and is used to move and adjust the support frame and stabilizing wheel.

[0011] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, the stabilizing component further includes a sliding member, which is fixedly connected to the bottom of the support frame. A groove is provided on the top of the extrusion equipment, and the sliding member is slidably connected inside the groove.

[0012] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, the bidirectional screw is rotatably connected inside the slide groove, and the sliding element is threadedly connected to the outer peripheral wall of the bidirectional screw.

[0013] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, a motor is installed inside the chute, and the output shaft of the motor is fixedly connected to a bidirectional screw.

[0014] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, a connecting rod extends through the side wall of the support frame, a connecting frame is fixedly connected to the end of the connecting rod, and a stabilizing wheel is rotatably connected to the side wall of the connecting frame.

[0015] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, the outer wall of the connecting rod is threaded with a fixing member, and the support frame and the corresponding side of the fixing member are both fixedly connected with flexible pads, and the two sets of flexible pads abut against each other.

[0016] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, a leveling roller is rotatably connected to the side wall of the extrusion equipment, and a clamping device is fixedly connected to the side wall of the extrusion equipment, with the end of the leveling roller clamped to the inner wall of the clamping device.

[0017] In a preferred embodiment of the high-efficiency extruder for polyethylene film production described in this utility model, magnetic suction components are fixedly installed at the end of the leveling roller and on the inner wall of the clamping component, and the traction roller is magnetically fixed to the inner wall of the clamping component through the magnetic suction components.

[0018] The beneficial effects of this invention are as follows: by setting a stabilizing component on the extrusion equipment, the distance between the two sets of stabilizing wheels can be adjusted by rotating the bidirectional screw on the stabilizing component, which facilitates the limiting of the film being transported and wound, and improves the stability of the film during processing and winding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency extruder for polyethylene film production according to this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of a stabilizing component on a high-efficiency extruder for polyethylene film production according to this utility model.

[0022] Figure 3 This is a schematic diagram of the unfolded structure of a stabilizing component on a high-efficiency extruder for polyethylene film production according to this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a fixing component on a high-efficiency extruder for polyethylene film production according to this utility model.

[0024] Figure descriptions: 100, Extrusion equipment; 101, Take-up roller; 102, Traction roller; 200, Stabilizing component; 201, Support frame; 202, Sliding component; 202a, Slide groove; 203, Bidirectional screw; 204, Stabilizing wheel; 205, Connecting frame; 206, Connecting rod; 207, Fixing component; 207a, Flexible pad; 208, Clamping component; 209, Leveling roller; 209a, Magnetic suction component. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a high-efficiency extruder for polyethylene film production, which can achieve the effect of limiting and stabilizing the conveying and winding of the film. It includes an extrusion device 100 and a winding roller 101 and a traction roller 102 disposed on the extrusion device 100, comprising:

[0031] The stabilizing component 200 is disposed on the top of the extrusion equipment 100. The stabilizing component 200 includes a support frame 201, a bidirectional screw 203, and a stabilizing wheel 204.

[0032] The support frame 201 and the stabilizing wheel 204 are located on the top of the extrusion equipment 100 and are symmetrically distributed to limit the film. The bidirectional screw 203 is located below the support frame 201 and is used to move and adjust the support frame 201 and the stabilizing wheel 204.

[0033] In use, by rotating the bidirectional screw 203, the two sets of support frames 201 and stabilizing wheels 204 can be driven to move towards each other until the distance between the two sets of stabilizing wheels 204 is appropriate to the width of the film. At this time, the stabilizing wheels 204 can limit and stabilize the film being transported and wound, avoiding the film from swaying and improving the stability of film processing and winding.

[0034] Example 2

[0035] Reference Figures 1 to 4 This is the second embodiment of the present invention. Unlike the previous embodiment, the stabilizing component 200 also includes a sliding member 202. The sliding member 202 is fixedly connected to the bottom of the support frame 201. The top of the extrusion device 100 is provided with a groove 202a, and the sliding member 202 is slidably connected inside.

[0036] The bidirectional screw 203 is rotatably connected inside the slide groove 202a, and the sliding member 202 is threadedly connected to the outer peripheral wall of the bidirectional screw 203. A motor is installed inside the slide groove 202a, and the output shaft of the motor is fixedly connected to the bidirectional screw 203. The motor can drive the bidirectional screw 203 to rotate. At the same time, the bidirectional screw 203 can drive the two sets of sliding members 202 and the support frame 201 to move towards each other. At this time, the support frame 201 can drive the stabilizing wheel 204 to move, which makes it easy to adjust the distance between the two sets of stabilizing wheels 204 according to the width of the film, thus improving its applicability.

[0037] The support frame 201 has a connecting rod 206 running through its side wall. A connecting frame 205 is fixedly connected to the end of the connecting rod 206. A stabilizing wheel 204 is rotatably connected to the side wall of the connecting frame 205. By rotating the fixing member 207 outwards until it moves away from the support frame 201, the angle of the stabilizing wheel 204 can be adjusted by rotating the connecting rod 206 according to different film winding positions and angles, thus improving its applicability.

[0038] The connecting rod 206 is threadedly connected to a fixing member 207 on its outer wall. The support frame 201 and the corresponding side of the fixing member 207 are both fixedly connected to flexible pads 207a. The two sets of flexible pads 207a abut against each other. By rotating the fixing member 207 toward the support frame 201 until the flexible pads 207a on the side wall of the fixing member 207 abut against the flexible pads 207a on the support frame 201, the connecting rod 206 can be fixed again.

[0039] The side wall of the extrusion equipment 100 is rotatably connected to a leveling roller 209, and the side wall of the extrusion equipment 100 is fixedly connected to a clamp 208. The end of the leveling roller 209 is clamped to the inner wall of the clamp 208. By setting the leveling roller 209, the film that is traction and pulled on the traction roller 102 can be flattened, which improves the stability of the film during transmission and avoids the film from undulating and curling.

[0040] The flattening roller 209 and the inner wall of the clamp 208 are both fixedly equipped with magnetic suction components 209a. The traction roller 102 is magnetically fixed to the inner wall of the clamp 208 through the magnetic suction components 209a. By passing the film through the traction roller 102, the clamp 208 is rotated and magnetically clamped to the inner wall of the clamp 208 to flatten the film.

[0041] In use, the extruded film is first passed through the cooling roller and the traction roller 102 in sequence and fixed on the take-up roller 101. The film is then magnetically attached to the inner wall of the rotating clamp 208 to flatten it. Next, the motor drives the bidirectional screw 203 to rotate. At the same time, the bidirectional screw 203 drives the two sets of support frames 201 and the stabilizing wheel 204 to move towards each other until the distance between the two sets of stabilizing wheels 204 is appropriate for the width of the film. Finally, the extruded film can be continuously and uniformly taken up.

[0042] For details on the specific functions and operating principles of the extrusion equipment 100, please refer to the casting film machine model XH-432.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency extruder for producing polyethylene film, comprising an extrusion unit (100) and a take-up roller (101) and a traction roller (102) disposed on the extrusion unit (100), characterized in that, include: A stabilizing assembly (200) is disposed on top of the extrusion equipment (100), the stabilizing assembly (200) including a support frame (201), a bidirectional screw (203) and a stabilizing wheel (204); The support frame (201) and the stabilizing wheel (204) are located on the top of the extrusion equipment (100) and are symmetrically distributed to limit the film. The bidirectional screw (203) is located below the support frame (201) and is used to adjust the movement of the support frame (201) and the stabilizing wheel (204).

2. The high-efficiency extruder for polyethylene film production according to claim 1, characterized in that: The stabilizing component (200) also includes a slider (202), which is fixedly connected to the bottom of the support frame (201). The top of the extrusion device (100) is provided with a groove (202a), and the slider (202) is slidably connected inside it.

3. The high-efficiency extruder for polyethylene film production according to claim 2, characterized in that: The bidirectional screw (203) is rotatably connected inside the slide groove (202a), and the sliding member (202) is threadedly connected to the outer peripheral wall of the bidirectional screw (203).

4. The high-efficiency extruder for polyethylene film production according to claim 3, characterized in that: The slide (202a) is equipped with a motor, and the output shaft of the motor is fixedly connected to the bidirectional screw (203).

5. The high-efficiency extruder for polyethylene film production according to claim 4, characterized in that: A connecting rod (206) runs through the side wall of the support frame (201), and a connecting frame (205) is fixedly connected to the end of the connecting rod (206). The stabilizing wheel (204) is rotatably connected to the side wall of the connecting frame (205).

6. The high-efficiency extruder for polyethylene film production according to claim 5, characterized in that: The outer wall of the connecting rod (206) is threaded with a fixing member (207). The support frame (201) and the fixing member (207) are both fixedly connected with flexible pads (207a) on their corresponding sides, and the two sets of flexible pads (207a) abut against each other.

7. The high-efficiency extruder for polyethylene film production according to claim 1, characterized in that: A leveling roller (209) is rotatably connected to the side wall of the extrusion equipment (100), and a clamp (208) is fixedly connected to the side wall of the extrusion equipment (100). The end of the leveling roller (209) is clamped to the inner wall of the clamp (208).

8. The high-efficiency extruder for polyethylene film production according to claim 7, characterized in that: The end of the leveling roller (209) and the inner wall of the clamp (208) are both fixedly equipped with magnetic suction components (209a), and the traction roller (102) is magnetically fixed to the inner wall of the clamp (208) by the magnetic suction components (209a).