Anti-blocking heat shrink film machine

By introducing side limiting sleeves and anti-blocking belts into the heat shrink film machine, the problem of material blockage is solved, achieving efficient material conveying and all-round heating, thus improving the efficiency and heating uniformity of the heat shrink film machine.

CN223919761UActive Publication Date: 2026-02-17JIANGXI ZHUOREI AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202520705304.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-02-17
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Existing heat shrink film machines are prone to blockages due to jamming during the wrapping and conveying process, which affects processing efficiency.

Method used

An anti-clogging heat shrink film machine was designed. By installing side limit sleeves and anti-clogging belts on both sides of the feeding roller, the pulley drives the push rod to push the anti-clogging belt to move inward and push out the blocking material. The heat shrink film machine body is rotated by a motor for all-round heating.

Benefits of technology

It effectively avoids material blockage, improves the processing efficiency and thermoplastic effect of the heat shrink film machine, ensures uniform heating of the material from all sides, and reduces heat loss.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thermal shrinkage film machines, and discloses an anti-blocking thermal shrinkage film machine which comprises a conveying frame, a support is fixedly connected to the middle of the outer portion of the conveying frame, a first limiting sleeve is fixedly connected to the inner side of the support, and a second limiting sleeve is movably connected to the outer portion of the first limiting sleeve in a sleeved mode. The two sides of the upper portion of the conveying frame are fixedly connected with anti-blocking belts. According to the anti-blocking type heat shrink film machine, the side limiting sleeves are installed on the two sides of the material conveying roller, the diameter of the side limiting sleeves is larger than that of the material conveying roller, materials are prevented from being fixed to the side face during conveying, meanwhile, the materials are clamped to the two sides of the material conveying roller during conveying, belt wheels are started, the belt wheels drive a belt to rotate, and the belt drives a push rod to move on the inner side of an anti-blocking belt; in other words, the anti-blocking belt continuously moves towards one side and makes contact with the materials, it is ensured that the materials blocked on the side face of the material conveying roller are ejected out, and the situation that the materials are blocked outside the material conveying roller, and consequently the machining efficiency of the heat shrinkage film machine is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of heat shrink film machine technology, specifically an anti-clogging heat shrink film machine. Background Technology

[0002] Heat shrink packaging machines are one of the more advanced packaging methods on the market. They use shrink film to wrap around the product or package, and then heat it to tighten the film, fully displaying the product's appearance, improving its marketability, and increasing its aesthetic appeal and perceived value. At the same time, the packaged items are sealed, moisture-proof, and pollution-proof, and protect the goods from external impacts, providing a certain degree of cushioning. Especially when packaging fragile items, it can prevent fragments from flying out, and it also reduces the possibility of the product being tampered with or stolen.

[0003] Normally, heat shrink packaging machines use an internal heating device to thermoform the heat shrink film, causing it to shrink onto the outside of the package. To improve packaging efficiency, the package with the heat shrink film attached is moved onto a conveyor belt, which then pushes it into the heat shrink machine. However, during the transport process, the package comes into contact with the inner device of the heat shrink machine as the conveyor belt moves, causing the package to jam and become stuck on the upper part of the conveyor belt. This blockage affects the processing efficiency of the heat shrink machine. Therefore, we propose an anti-blocking heat shrink machine. Utility Model Content

[0004] To address the shortcomings of existing anti-clogging heat shrink film machines, this invention provides an anti-clogging heat shrink film machine. It features a design where a package is placed on top of a conveyor roller. As the roller rotates, it moves the package. Simultaneously, when the package is caught on both sides and the top of the roller, a pulley is activated. This pulley drives a push rod to rotate, and as the push rod moves, it pushes the anti-clogging tape inward, thus pushing out the package that is blocked by the anti-clogging tape. This effectively avoids package blockage and solves the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an anti-clogging heat shrink film machine, including a conveyor frame, a support fixedly connected to the middle of the outer side of the conveyor frame, a first limiting sleeve fixedly connected to the inner side of the support, a second limiting sleeve movably sleeved to the outer side of the first limiting sleeve, anti-clogging belts fixedly connected to both sides of the upper part of the conveyor frame, and an anti-clogging pushing device installed on the outer side of the anti-clogging belt, the anti-clogging pushing device pushing the anti-clogging belt to move inward.

[0006] Preferably, the conveyor frame is equipped with conveying rollers that push the product to move at equal intervals inside, and side limiting sleeves are fixedly connected to both sides of the conveying rollers.

[0007] Preferably, the bracket is circular, and the second limiting sleeve is installed on the inner side of the two sets of brackets.

[0008] Preferably, an auxiliary gear is fixedly connected to the outside of the second limiting sleeve, and a motor is installed on one side of the outside of the bracket. The gear installed at one end of the motor output shaft is meshed with the auxiliary gear.

[0009] Preferably, a heat shrink film machine body is fixedly connected to the inner side of the second limiting sleeve, and a heat shrink heating device is installed inside the heat shrink film machine body, with the heating direction of the heat shrink heating device facing downward.

[0010] Preferably, the anti-blocking pushing device includes a pulley. A pulley is installed on the upper part of the conveyor frame and on one side of the anti-blocking belt. A belt is sleeved on the outside of the pulley. A set of push rods is fixedly connected to the outside of the belt. The push rods are in contact with the anti-blocking belt at their ends.

[0011] Preferably, the bracket is fitted with a circular outer shell, which is fitted onto the outside of the heat shrink film machine body.

[0012] Compared with existing anti-clogging heat shrink film machines, this utility model has the following advantages:

[0013] 1. This anti-clogging heat shrink film machine has side limiting sleeves installed on both sides of the feeding roller. The diameter of the side limiting sleeves is larger than that of the feeding roller. This prevents the material from being conveyed to the side. At the same time, when the material is conveyed, it is stuck on both sides of the feeding roller. By starting the pulley, the pulley drives the belt to rotate. The belt drives the push rod to move inside the anti-clogging belt. That is, the anti-clogging belt moves continuously to one side and contacts the material. This ensures that the material blocking the side of the feeding roller is pushed out, preventing it from blocking the outside of the feeding roller and affecting the processing efficiency of the heat shrink film machine.

[0014] 2. This anti-clogging heat shrink film machine is installed inside the second limiting sleeve by the heat shrink film machine body. When the motor is started, the motor drives the second limiting sleeve to rotate inside the first limiting sleeve, which in turn drives the heat shrink film machine body to rotate. By starting the heat shrink film machine body, the heat shrink film can be thermoformed and fixed. When the heat shrink film machine body rotates, it can heat the material from different directions around the outside, ensuring that the material can be thermoformed from different directions around the outside. This prevents the heat shrink film machine from being unable to thermoform the film at the bottom of the material, thereby improving its thermoforming effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2This is a schematic cross-sectional view of the main body of this utility model;

[0017] Figure 3 This is a top view of the conveying device of this utility model;

[0018] Figure 4 This is a schematic diagram of the side cross-sectional structure of the main body of this utility model;

[0019] Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0020] In the diagram: 1. Conveyor frame; 2. Feeding roller; 3. Side limiting sleeve; 4. Support frame; 5. First limiting sleeve; 6. Second limiting sleeve; 7. Auxiliary gear; 8. Motor; 9. Heat shrink film machine body; 10. Outer shell; 11. Anti-blocking belt; 12. Pulley; 13. Belt; 14. Push rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An anti-clogging heat shrink film machine includes a conveyor frame 1. A bracket 4 is fixedly connected to the middle of the outer side of the conveyor frame 1. The bracket 4 adjusts the position of the heat shrink film machine. A first limiting sleeve 5 is fixedly connected to the inner side of the bracket 4. A second limiting sleeve 6 is movably sleeved on the outer side of the first limiting sleeve 5. When the second limiting sleeve 6 rotates, it drives the heat shrink film machine body 9 to heat the material around its perimeter, ensuring that the heat shrink film is heated, shrunk, and fixed. Anti-clogging belts 11 are fixedly connected to both sides of the upper part of the conveyor frame 1. An anti-clogging pushing device is installed on the outer side of the anti-clogging belt 11. The anti-clogging pushing device pushes the anti-clogging belt 11 to move inward. When the anti-clogging belt 11 moves inward, it pushes the material inward to prevent the material from clogging the upper part of the conveying roller 2.

[0023] Please see Figure 2Inside the conveyor frame 1, there are conveying rollers 2 that push the product to move, installed at equal intervals. Side limiting sleeves 3 are fixedly connected to both sides of the conveying rollers 2. By installing the conveying rollers 2 on the inside of the conveyor frame 1, the conveying rollers 2 can drive the packaging material to move when they rotate. At the same time, the side limiting sleeves 3 are fixedly connected to both sides of the conveying rollers 2. The diameter of the side limiting sleeves 3 is larger than the diameter of the conveying rollers 2. When the material moves to the side of the conveying rollers 2, the side limiting sleeves 3 block the material, preventing the material from moving to one side and contacting the inner wall of the conveyor frame 1, thus preventing the material from getting stuck between the connection between the conveyor frame 1 and the conveying rollers 2, thereby avoiding the problem of blockage during material conveying and heat shrinking.

[0024] Please see Figure 5 The bracket 4 is circular, and the second limiting sleeve 6 is installed inside the two sets of brackets 4. Because the bracket 4 is circular and the second limiting sleeve 6 is installed inside the two sets of brackets 4, the bracket 4 limits the movement trajectory of the second limiting sleeve 6 through the first limiting sleeve 5, so as to ensure the stability of the second limiting sleeve 6 when rotating.

[0025] Please see Figure 1 An auxiliary gear 7 is fixedly connected to the outside of the second limiting sleeve 6. A motor 8 is installed on one side of the outside of the bracket 4. The gear installed at one end of the output shaft of the motor 8 is meshed with the auxiliary gear 7. When the motor 8 is started, the motor 8 drives the gear to rotate. At the same time, the gear and the auxiliary gear 7 mesh, which in turn drives the heat shrink film machine body 9 to rotate. During the rotation of the heat shrink film machine body 9, the heating device can heat the material on the upper part of the conveying roller 2 in different directions, thereby improving the overall performance of the heat shrink process.

[0026] Please see Figure 4 The inner side of the second limiting sleeve 6 is fixedly connected to the heat shrink film machine body 9. The heat shrink heating device is installed inside the heat shrink film machine body 9. The heating direction of the heat shrink heating device is downward. The heat shrink film machine body 9 is set inside the second limiting sleeve 6. When the heat shrink heating device installed inside the heat shrink film machine body 9 is activated, the heat shrink film machine body 9 heats and shrinks the heat shrink film placed at the lower end.

[0027] Please see Figure 3The anti-blocking pushing device includes a pulley 12. The pulley 12 is installed on the upper part of the conveyor frame 1 and on one side of the anti-blocking belt 11. A belt 13 is sleeved on the outside of the pulley 12. A set of push rods 14 are fixedly connected to the outside of the belt 13. The end of the push rod 14 is in contact with the anti-blocking belt 11. Because the anti-blocking pushing device is installed on one side of the anti-blocking belt 11, when the pulley 12 rotates, the pulley 12 drives the belt 13 to rotate. The belt 13 drives the push rod 14 to move. That is, when the push rod 14 contacts the anti-blocking belt 11, the push rod 14 pushes the anti-blocking belt 11 to move inward. That is, the anti-blocking belt 11 pushes the material that has moved to the side of the conveying roller 2 to move inward, thus preventing the material from moving to the side of the conveying roller 2 and causing the material to get stuck between the joints, thereby causing the subsequent material to be placed to block.

[0028] Please see Figure 2 The bracket 4 is fitted with a housing 10, which is circular. The housing 10 is fitted onto the outside of the heat shrink film machine body 9. The housing 10 is fitted onto the outside of the bracket 4, and the housing 10 is fitted onto the outside of the heat shrink film machine body 9. That is, the housing 10 seals the inside of the heat shrink film machine body 9. By improving its sealing performance, heat loss is reduced when heat shrinking is started.

[0029] Working principle: During use, the material is placed on the upper part of the conveying roller 2. When the conveying roller 2 rotates, it moves the material to the inside of the support 4. At the same time, the pulley 12 is started, which drives the belt 13 to rotate. The belt 13 drives the push rod 14 to contact the inside of the anti-blocking belt 11, that is, the anti-blocking belt 11 moves inward. When the material blocks the side of the conveying roller 2, the anti-blocking belt 11 pushes the material out as the push rod 14 moves, avoiding the blockage. At the same time, the material moves to the inside of the support 4, and the motor 8 is started. The motor 8 drives the auxiliary gear 7 to rotate, which drives the second limit sleeve 6 to rotate. The second limit sleeve 6 drives the heat shrink film machine body 9 to move. The heat shrink film machine body 9 performs heat shrink treatment on different external positions of the material.

[0030] 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 clog-resistant heat shrink film machine, comprising a conveyor frame (1), wherein a support (4) is fixedly connected to the middle of the outer side of the conveyor frame (1), characterized in that: The bracket (4) is fixedly connected to the inner side of a first limiting sleeve (5), and the first limiting sleeve (5) is movably sleeved with a second limiting sleeve (6). The upper sides of the conveyor frame (1) are fixedly connected to anti-blocking belts (11), and an anti-blocking pushing device is installed on the outer side of the anti-blocking belt (11). The anti-blocking pushing device pushes the anti-blocking belt (11) to move inward.

2. The anti-clogging heat shrink film machine according to claim 1, characterized in that: The conveyor frame (1) is equipped with conveying rollers (2) that push the product to move, and side limiting sleeves (3) are fixedly connected to both sides of the conveying rollers (2).

3. The anti-clogging heat shrink film machine according to claim 1, characterized in that: The bracket (4) is circular, and the second limiting sleeve (6) is installed on the inner side of the two sets of brackets (4).

4. The anti-clogging heat shrink film machine according to claim 1, characterized in that: An auxiliary gear (7) is fixedly connected to the outside of the second limiting sleeve (6). A motor (8) is installed on one side of the outside of the bracket (4). The gear installed at one end of the output shaft of the motor (8) meshes with the auxiliary gear (7).

5. The anti-clogging heat shrink film machine according to claim 1, characterized in that: The inner side of the second limiting sleeve (6) is fixedly connected to the heat shrink film machine body (9), and the heat shrink heating device is installed inside the heat shrink film machine body (9), with the heating direction of the heat shrink heating device facing downward.

6. The anti-clogging heat shrink film machine according to claim 1, characterized in that: The anti-blocking pusher includes a pulley (12). The pulley (12) is installed on the upper part of the conveyor frame (1) and on one side of the anti-blocking belt (11). A belt (13) is sleeved on the outside of the pulley (12). A set of push rods (14) is fixedly connected to the outside of the belt (13). The push rods (14) are in contact with the anti-blocking belt (11) at their ends.

7. The anti-clogging heat shrink film machine according to claim 1, characterized in that: The bracket (4) is fitted with a shell (10), which is circular and fits around the body (9) of the heat shrink film machine.