Winding device for heat shrinkage film production

By introducing synchronous winding components and auxiliary rolling components into the winding device for heat shrink film production, the problems of low efficiency and loose film rolls in the existing device have been solved, realizing synchronous winding of multiple rolls and thickness monitoring, thereby improving production efficiency and product quality.

CN223792573UActive Publication Date: 2026-01-13JIANGXI MEIANTE IND CO LTD
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Patent Information

Application Number
CN202520002530.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-01-13
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

Existing heat shrink film production winding devices can only wind up one film roll, which is inefficient and lacks transmission and clamping auxiliary structures, resulting in loose film rolls with uneven thickness, which easily leads to production waste.

Method used

A winding device comprising a synchronous winding assembly and an auxiliary rolling assembly was designed. The device enables multiple winding shafts to rotate synchronously through a transmission structure, and provides tension and real-time monitoring of the film roll thickness during the winding process, ensuring that the film roll is tight and has a consistent thickness.

Benefits of technology

This technology enables the simultaneous winding of multiple film rolls, improving production efficiency, reducing film roll looseness and thickness errors, and minimizing production waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a winding device for heat shrink film production, which comprises a fixed base, a driving bin is arranged on the inner side of the fixed base, a motor bin is arranged on one side of the driving bin, and the top end of the fixed base is fixedly connected with a support frame; the synchronous winding assembly is arranged on the inner side of the fixed base and the inner side of the supporting frame. The rolling shaft assembly is arranged between the supporting frames, and the outer side of the rolling shaft assembly can be wound with a heat shrinkage film roll; and the auxiliary rolling assembly is arranged between the supporting frames. Compared with the prior art, the thermal shrinkage film rolling device has the advantages that a plurality of thermal shrinkage film rolls can be rolled at the same time, a thermal shrinkage film can be compacted during rolling, and the rolling thickness of the thermal shrinkage film rolls can be monitored.
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Description

Technical Field

[0001] This utility model relates to the technical field of heat shrink film production equipment, specifically to a winding device for heat shrink film production. Background Technology

[0002] Heat shrink film is used for the sale and transportation of various products. Its main function is to stabilize, cover, and protect the products. Shrink film must have high puncture resistance, good shrinkage, and a certain shrinkage stress. During the shrinkage process, the film must not produce holes. Since shrink film is often used outdoors, UV stabilizers are added. It has high flexibility, is not easily damaged, has strong burst resistance, strong impact resistance, strong tear resistance, and strong tensile strength. It can replace box packaging, has a large shrinkage rate, and can tightly wrap items after heat shrinking. If made into PE straight-through bags (open at both ends), items can be lifted from the open ends after heat shrinking. It can withstand a weight of 15KG, making it easy to handle. It has good transparency, with a light transmittance of up to 80%, which can display the product and promote it invisibly. It also reduces delivery errors in the logistics process. It is moisture-proof, waterproof, and dustproof, achieving both packaging effect and product aesthetics and protection. It is non-toxic, odorless, and pollution-free, making it an environmentally friendly packaging material.

[0003] However, existing patents have the following drawbacks:

[0004] (1) The existing heat shrink film production winding device has only one winding shaft and no transmission structure, which means that the existing heat shrink film production winding device can only wind up one heat shrink film roll, resulting in low winding efficiency of the heat shrink film roll.

[0005] (2) Existing utility model heat shrink film production winding device lacks a structure that can clamp and assist in the winding of heat shrink film. When winding the heat shrink film, it cannot provide a certain tension to the heat shrink film, resulting in the heat shrink film being wound too loosely. Furthermore, when winding the heat shrink film, the thickness of each heat shrink film roll cannot be determined, resulting in a large error between each heat shrink film roll, which can easily lead to production waste. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a heat shrink film production winding device that can simultaneously wind out multiple heat shrink film rolls, can compact the heat shrink film during winding, and can monitor the winding thickness of the heat shrink film rolls.

[0007] To solve the above problems, the technical solution of this utility model is: a winding device for heat shrink film production, comprising:

[0008] A fixed base is provided, with a drive compartment on the inner side of the fixed base and a motor compartment on one side of the drive compartment. A support frame is fixedly connected to the top of the fixed base.

[0009] A synchronous winding assembly is disposed inside the fixed base and the support frame;

[0010] A take-up shaft assembly is disposed between support frames, and a heat-shrinkable film roll can be wound around the outside of the take-up shaft assembly;

[0011] An auxiliary rolling assembly is disposed between the support frames.

[0012] Furthermore, the synchronous winding component includes:

[0013] The motor is fixedly installed inside the motor compartment, and a bevel gear is fixedly connected to one end of the motor drive shaft;

[0014] A rotating shaft is rotatably connected to the inside of the drive compartment, and a bevel gear two is fixedly connected to the outside of the rotating shaft, wherein the bevel gear one and the bevel gear two mesh.

[0015] A drive wheel, which is fixedly connected to the outside of the rotating shaft;

[0016] A rotating wheel, which is rotatably connected to the inside of the support frame;

[0017] An auxiliary shaft is rotatably connected to the inside of the support frame;

[0018] A timing belt, which is sleeved on the outside of the drive wheel, the rotating wheel and the auxiliary shaft.

[0019] Furthermore, the outer sides of the drive wheel and the rotating wheel are provided with annular toothed grooves, and the side of the timing belt that contacts the drive wheel and the rotating wheel is fixedly connected with a tooth that fits the toothed groove. The wrap angle of the timing belt of the auxiliary shaft to the drive wheel and the rotating wheel is greater than 120°.

[0020] Furthermore, the take-up reel assembly includes:

[0021] The limiting plate has a hexagonal limiting groove on the inner side of the rotating wheel. The limiting plate is adapted to the limiting groove and is slidably connected to the limiting groove. A button is fixedly connected to one side of the limiting plate, and a push button is fixedly connected to the other side of the limiting plate. A hexagonal insertion hole is opened on the opposite side of the rotating wheel.

[0022] A take-up shaft is disposed between support frames. The take-up shaft has storage slots at both ends. The opening of the storage slot is hexagonal. A limit shaft is fixedly connected to the inside of the storage slot.

[0023] The insertion tube is hexagonal and slidably connected to the inside of the storage groove, and the insertion tube can be inserted into the hexagonal insertion hole;

[0024] Spring 1, the spring is set on the outside of the limiting shaft and fixedly connected between the insertion tube and the bottom of the inner side of the receiving groove.

[0025] Furthermore, the auxiliary rolling assembly includes:

[0026] A pressure sensor, which is fixedly installed on one side of the support frame;

[0027] A limiting rod, which is hexagonal and fixedly connected between two pressure sensors;

[0028] A connecting ring, which is adapted to a hexagonal limiting rod and slidably connected to the outside of the limiting rod;

[0029] Spring 2, which is sleeved on the outside of the limiting rod and fixedly connected between the connecting ring and the pressure sensor, and spring 2 has a built-in damper;

[0030] A support rod, one end of which is rotatably connected to one side of a connecting ring;

[0031] A roller frame, which is rotatably connected to the other end of a support rod;

[0032] An auxiliary roller is rotatably connected to the inside of the roller frame.

[0033] The advantages of this invention compared to existing technologies are as follows:

[0034] (1) The present invention provides a heat shrink film production winding device with a synchronous winding component. Through the transmission structure, multiple winding shafts can be driven to rotate synchronously, so that the heat shrink film production winding device can simultaneously wind out multiple heat shrink film rolls, greatly improving production efficiency.

[0035] (2) The present invention provides a heat shrink film production winding device with an auxiliary rolling component, which can compact the heat shrink film during winding to provide tension, so that the heat shrink film can be wound tightly. The auxiliary rolling component can monitor the thickness of the heat shrink film roll in real time, reduce production errors during heat shrink film winding, and reduce production waste. Attached Figure Description

[0036] Figure 1 This utility model relates to a three-dimensional winding device for producing heat shrink film. Figure 1 .

[0037] Figure 2 This utility model relates to a three-dimensional winding device for producing heat shrink film. Figure 2 .

[0038] Figure 3 This is a cross-sectional view of a winding device for producing heat shrink film according to this utility model. Figure 1 .

[0039] Figure 4 This is a cross-sectional view of a winding device for producing heat shrink film according to this utility model. Figure 2 .

[0040] Figure 5 This is a cross-sectional view of a winding device for producing heat shrink film according to this utility model. Figure 3 .

[0041] Figure 6 This is an enlarged view of A, a winding device for producing heat shrink film according to this utility model.

[0042] As shown in the figure: 1. Fixed base; 101. Drive compartment; 102. Motor compartment; 2. Support frame; 3. Synchronous winding assembly; 301. Motor; 302. Bevel gear one; 303. Rotating shaft; 304. Bevel gear two; 305. Drive wheel; 306. Rotating wheel; 307. Auxiliary shaft; 308. Synchronous belt; 4. Winding shaft assembly; 401. Limiting groove; 402. Limiting plate; 403. Button; 404. Push button; 405. Insertion hole; 406. Winding shaft; 407. Storage slot; 408. Limiting shaft; 409. Insertion tube; 410. Spring one; 5. Auxiliary rolling assembly; 501. Pressure sensor; 502. Limiting rod; 503. Connecting ring; 504. Spring two; 505. Support rod; 506. Roller frame; 507. Auxiliary roller; 6. Heat shrink film roll. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0045] Example 1:

[0046] like Figures 1 to 6As shown, a winding device for producing heat shrink film includes: a fixed base 1, a synchronous winding assembly 3, a winding shaft assembly 4, and an auxiliary rolling assembly 5. A drive chamber 101 is provided on the inner side of the fixed base 1, and a motor chamber 102 is provided on one side of the drive chamber 101. A support frame 2 is fixedly connected to the top of the fixed base 1. The synchronous winding assembly 3 is disposed on the inner side of the fixed base 1 and the support frame 2. The winding shaft assembly 4 is disposed between the support frame 2. The auxiliary rolling assembly 5 is disposed between the support frame 2. A heat shrink film roll 6 can be wound around the outer side of the winding shaft assembly 4.

[0047] One end of the heat shrink film produced in the heat shrink film production equipment is wound around the outside of the take-up shaft 406, and then the heat shrink film production take-up device can be started to roll the heat shrink film into heat shrink film roll 6.

[0048] The synchronous winding assembly 3 includes: a motor 301, a rotating shaft 303, a drive wheel 305, a rotating wheel 306, an auxiliary shaft 307, and a synchronous belt 308. The motor 301 is fixedly installed inside the motor compartment 102. One end of the drive shaft of the motor 301 is fixedly connected to a bevel gear 302. The rotating shaft 303 is rotatably connected to the inside of the drive compartment 101. A bevel gear 304 is fixedly connected to the outside of the rotating shaft 303. The bevel gear 302 and the bevel gear 304 mesh. The drive wheel 305 is fixedly connected to the rotating shaft 303. On the outer side, the rotating wheel 306 is rotatably connected to the inner side of the support frame 2, and the auxiliary shaft 307 is rotatably connected to the inner side of the support frame 2. The timing belt 308 is sleeved on the outer side of the drive wheel 305, the rotating wheel 306 and the auxiliary shaft 307. The outer side of the drive wheel 305 and the rotating wheel 306 is provided with annular toothed grooves. The side of the timing belt 308 that contacts the drive wheel 305 and the rotating wheel 306 is fixedly connected with a tooth that fits the toothed groove. The auxiliary shaft 307 limits the wrap angle of the timing belt 308 to the drive wheel 305 and the rotating wheel 306 to be greater than 120°.

[0049] The motor 301 is started, which causes the drive shaft of the motor 301 to drive the bevel gear 302 to rotate. The bevel gear 302 drives the bevel gear 304 meshing with it to rotate. The bevel gear 304 drives the rotating shaft 303 and the drive wheel 306 to rotate. The drive wheel 306 drives multiple rotating wheels 306 to rotate synchronously through the synchronous belt 308, so that the winding device for heat shrink film production can simultaneously wind up multiple heat shrink film rolls 6.

[0050] The auxiliary rolling assembly 5 includes: a pressure sensor 501, a limiting rod 502, a connecting ring 503, a second spring 504, a support rod 505, a roller frame 506, and an auxiliary roller 507. The pressure sensor 501 is fixedly installed on the opposite side of the support frame 2. The limiting rod 502 is hexagonal and fixedly connected between the two pressure sensors 501. The connecting ring 503 is adapted to the hexagonal limiting rod 502 and is slidably connected to the outside of the limiting rod 502. The second spring 504 is sleeved on the outside of the limiting rod 502 and fixedly connected between the connecting ring 503 and the pressure sensor 501. The second spring 504 has a built-in damper. One end of the support rod 505 is rotatably connected to one side of the connecting ring 503. The roller frame 506 is rotatably connected to the other end of the support rod 505. The auxiliary roller 507 is rotatably connected to the inside of the roller frame 506.

[0051] During the winding process, the auxiliary roller 507, supported and pushed by the second spring 504, tightly clamps the heat shrink film and applies a moving winding tension to the heat shrink film, allowing it to be tightly wrapped around the outside of the winding shaft 406. As the thickness of the heat shrink film roll 6 increases, the auxiliary roller 507 is subjected to compressive force, causing the roller frame 506 to push the support rod 055 to rotate, causing the connecting ring 503 to slide on the limit rod 502, compressing the second spring 504. The second spring 504 transmits the compressive force to the pressure sensor 501, which monitors the pressure value. When the heat shrink film roll 6 is wound to the target thickness, the pressure sensor 501 can control the motor 301 to stop rotating.

[0052] The take-up shaft assembly 4 includes: a limiting plate 402, a take-up shaft 406, an insert tube 409, and a spring 410. A hexagonal limiting groove 401 is formed on the inner side of the rotating wheel 306. The limiting plate 402 fits into and is slidably connected to the limiting groove 401. A button 403 is fixedly connected to one side of the limiting plate 402, and a push button 404 is fixedly connected to the other side. A hexagonal insertion hole 405 is formed on the opposite side of the rotating wheel 306. The reel 406 is disposed between the support frames 2. The reel 406 has storage grooves 407 at both ends. The opening of the storage groove 407 is hexagonal. The inner side of the storage groove 407 is fixedly connected to the limiting shaft 408. The insertion tube 409 is hexagonal and is slidably connected to the inner side of the storage groove 407. The insertion tube 409 can be inserted into the hexagonal insertion hole 405. The spring 410 is sleeved on the outside of the limiting shaft 408 and fixedly connected between the insertion tube 409 and the bottom of the inner side of the storage groove 407.

[0053] After winding is completed, press the buttons 403 on both sides of the winding device for heat shrink film production at the same time, so that the limiting plate 402 slides in the limiting groove 401, and the push button 404 pushes the insertion tube 409 to retract into the storage grooves 407 at both ends of the winding shaft 406. At this time, the winding shaft 406 can be removed from the rotating wheels 306 on both sides, and the heat shrink film roll 6 is removed from the winding shaft 406, thus completing the heat shrink film winding operation.

[0054] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0055] Pressure sensors are existing products on the market, and their connection and control methods are also existing technologies, so they will not be described in detail here.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding device for producing heat shrink film, characterized in that, include: A fixed base (1) is provided with a drive compartment (101) on the inner side of the fixed base (1) and a motor compartment (102) on one side of the drive compartment (101). A support frame (2) is fixedly connected to the top of the fixed base (1). Synchronous winding assembly (3), wherein the synchronous winding assembly (3) is disposed inside the fixed base (1) and the support frame (2); A take-up shaft assembly (4) is disposed between support frames (2), and a heat shrinkable film roll (6) can be wound around the outside of the take-up shaft assembly (4); An auxiliary rolling assembly (5) is disposed between the support frames (2).

2. The winding device for producing heat shrink film according to claim 1, characterized in that: The synchronous winding component (3) includes: The motor (301) is fixedly installed inside the motor compartment (102), and a bevel gear (302) is fixedly connected to one end of the drive shaft of the motor (301); A rotating shaft (303) is rotatably connected to the inside of the drive compartment (101), and a bevel gear two (304) is fixedly connected to the outside of the rotating shaft (303). The bevel gear one (302) and the bevel gear two (304) mesh with each other. A drive wheel (305) is fixedly connected to the outside of a rotating shaft (303); A rotating wheel (306) is rotatably connected to the inner side of the support frame (2); An auxiliary shaft (307) is rotatably connected to the inside of the support frame (2); A timing belt (308) is fitted around the drive wheel (305), the rotating wheel (306), and the auxiliary shaft (307).

3. The winding device for producing heat-shrinkable film according to claim 2, characterized in that: The drive wheel (305) and the rotating wheel (306) have annular toothed grooves on their outer sides. The synchronous belt (308) is fixedly connected with a tooth that fits the toothed groove on the side that contacts the drive wheel (305) and the rotating wheel (306). The auxiliary shaft (307) limits the wrap angle of the synchronous belt (308) to the drive wheel (305) and the rotating wheel (306) to be greater than 120°.

4. A winding device for producing heat-shrinkable film according to claim 2, characterized in that: The take-up shaft assembly (4) includes: The limiting plate (402) has a hexagonal limiting groove (401) on the inner side of the rotating wheel (306). The limiting plate (402) is adapted to the limiting groove (401) and is slidably connected to the limiting groove (401). A button (403) is fixedly connected to one side of the limiting plate (402), and a push button (404) is fixedly connected to the other side of the limiting plate (402). A hexagonal insertion hole (405) is opened on the opposite side of the rotating wheel (306). A take-up shaft (406) is disposed between the support frames (2). The take-up shaft (406) has storage grooves (407) at both ends. The opening of the storage groove (407) is hexagonal. A limit shaft (408) is fixedly connected to the inside of the storage groove (407). Insertion tube (409), the insertion tube (409) is hexagonal and slidably connected to the inside of the storage groove (407), the insertion tube (409) can be inserted into the hexagonal insertion hole (405); Spring 1 (410) is sleeved on the outside of the limiting shaft (408) and fixedly connected between the insertion tube (409) and the bottom of the inner side of the receiving groove (407).

5. A winding device for producing heat-shrinkable film according to claim 1, characterized in that: The auxiliary rolling assembly (5) includes: Pressure sensor (501), the pressure sensor (501) is fixedly installed on the opposite side of the support frame (2); A limiting rod (502) is hexagonal and fixedly connected between two pressure sensors (501); A connecting ring (503) is adapted to a hexagonal limiting rod (502) and slidably connected to the outside of the limiting rod (502); Spring 2 (504) is sleeved on the outside of the limiting rod (502) and fixedly connected between the connecting ring (503) and the pressure sensor (501). Spring 2 (504) has a built-in damper. A support rod (505), one end of which is rotatably connected to one side of a connecting ring (503); A roller frame (506) is rotatably connected to the other end of a support rod (505); An auxiliary roller (507) is rotatably connected to the inside of the roller frame (506).