Multi-layer biodegradable thermal shrinkage film for cigarette logistics packaging

By designing convenient installation components and a mobile cutter assembly in the cigarette logistics packaging device, the problem of slow installation and replacement of heat shrink film has been solved, enabling rapid installation and replacement, improving logistics packaging efficiency, and enhancing safety.

CN224091394UActive Publication Date: 2026-04-07SHANDONG ZHONGZESHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing cigarette logistics packaging equipment cannot quickly install and replace heat shrink film, resulting in low efficiency in logistics packaging operations.

Method used

A multi-layer biodegradable heat shrink film was designed, employing a convenient installation component and a movable cutter component. The heat shrink film can be quickly installed and replaced through a flip-top box, side lugs, hand-tightened bolts, and a spring structure, while safe cutting is achieved through the cutter body and spring structure.

Benefits of technology

It enables rapid installation and replacement of heat shrink film, improves the efficiency of logistics packaging, enhances safety during cutting, and avoids the problem of scratches on the surface of cigarette logistics boxes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a multilayer biodegradable thermal shrinkage film for cigarette logistics packaging, which relates to the technical field of cigarette logistics packaging, and comprises a storage box, a convenient installation assembly is arranged on the surface of the storage box, the convenient installation assembly comprises a flip box, the flip box is rotatably connected to the surface of the storage box through a hinge, and the flip box is connected with the storage box through a hinge. And side lugs are connected to the surfaces of the two sides of the flip box correspondingly, inserting grooves are formed in the bottoms of the two sides of the storage box correspondingly, and hand screwing bolts are inserted into the inserting grooves. According to the thermal shrinkage film storage box, when a thermal shrinkage film body needs to be installed, the flip box can be rotated to be opened, then the two sets of handles are pulled towards the two sides at the same time, the clamping blocks are made to be in a contraction state, and at the moment, the thermal shrinkage film body can be placed in the storage box; the clamping blocks are pushed to be inserted into the two sides of the heat shrinkage film body through the elastic force of the first springs, rapid installation can be completed, after the heat shrinkage film is used, rapid replacement can be achieved, and the working efficiency of logistics packaging is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cigarette logistics packaging technology, and in particular to a multi-layer biodegradable heat shrink film for cigarette logistics packaging. Background Technology

[0002] In the cigarette industry, the logistics and packaging process is crucial for product protection and transportation efficiency. Traditional cigarette packaging materials mostly use plastic heat-shrink film, which provides good sealing and protection, and has the property of being decomposed by microorganisms in the natural environment, thus significantly reducing environmental pollution.

[0003] As disclosed in publication number CN221092019U, a fully degradable heat-shrinkable packaging film includes a storage mechanism. The storage mechanism includes a placement box, with a fixing box hinged to the upper rear end of the placement box. A packaging film body is disposed inside the placement box, and a film outlet is provided through the lower front end of the placement box. One end of the packaging film body extends through the film outlet to the front side of the placement box. The packaging film body includes a surface layer, a second adhesive layer fixedly disposed at the lower end of the surface layer, and an intermediate layer fixedly disposed at the lower end of the second adhesive layer. In this invention, the internally designed sealing sleeve and decomposition block can trigger a reaction between starch and polyvinyl alcohol and the various layers of the packaging film body after use, providing active sites for degradation, promoting the breakage and degradation of polyethylene molecules, while also ensuring the stability and durability of the packaging film's performance, meeting various requirements during use.

[0004] This patent ensures the stability and durability of the packaging film's performance. However, existing devices have a problem when using heat shrink film: they cannot quickly install the heat shrink film inside the storage box, and they cannot quickly replace it after use. This greatly reduces the efficiency of logistics packaging.

[0005] Therefore, we propose a novel multilayer biodegradable heat shrink film for cigarette logistics packaging. Utility Model Content

[0006] The purpose of this invention is to solve a problem with existing devices when using heat shrink film: they cannot quickly install the heat shrink film inside the storage box, and they cannot quickly replace the heat shrink film after use, which greatly reduces the efficiency of logistics packaging.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer biodegradable heat-shrinkable film for cigarette logistics packaging, comprising a storage box, the surface of which is provided with a convenient installation component, the convenient installation component comprising a flip-top box, the flip-top box being rotatably connected to the surface of the storage box via hinges, side ears being connected to both sides of the flip-top box, slots being provided at the bottom of both sides of the storage box, hand-tightening bolts being inserted into the slots, fixing blocks being connected to both outer surfaces of the storage box, a first spring being provided inside the fixing block, a push rod being inserted inside the first spring, a push plate being connected to one end of the push rod, a handle being connected to the other end of the push rod, a locking block being connected to one side of the push plate, and a heat-shrinkable film body being provided inside the storage box.

[0008] Furthermore, the position and size of the slot match the position and size of the side ear, and the side ear and the slot form a snap-fit ​​connection.

[0009] Furthermore, the hand-tightening bolt passes through the slot and forms a threaded connection with the side ear, and the outer surface of the push plate is in contact with the inner wall of the fixing block.

[0010] Furthermore, the push plate and the first spring form an elastic structure, and the positions of the two sets of locking blocks match the positions of the two sides of the heat-shrink film body.

[0011] Furthermore, a movable cutter assembly is provided inside the front end of the flip-top box. The movable cutter assembly includes a slot, and a sliding groove is provided on one inner wall of the slot.

[0012] Furthermore, a movable block is provided inside the slot, and a slider is connected to the rear end of the movable block. The flip-top box has a discharge port located at the lower end of the slot.

[0013] Furthermore, the flip-top box has a cutting groove at the lower end of the discharge port, and a top block is connected inside the moving block.

[0014] Furthermore, a pressing block is connected to the top of the top block, and a second spring is connected to each of the four bottom corners of the top block.

[0015] Furthermore, the bottom of the top block is connected to the cutter body, and the top block and the second spring form an elastic structure.

[0016] Furthermore, the moving block is slidably connected to the slide groove via a slider, and the position and size of the cutter body match the position and size of the cutter groove.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, when it is necessary to install the heat shrink film body, the flip box can be rotated open, and then the two sets of handles can be pulled to both sides at the same time, so that the locking block is in the retracted state. At this time, the heat shrink film body can be placed inside the storage box. The locking block can be inserted into both sides of the heat shrink film body by the elastic force of the first spring, which can complete the quick installation. This allows the heat shrink film to be quickly replaced after use, improving the work efficiency of logistics packaging.

[0019] 2. In this utility model, after the cigarette logistics box is packaged with the heat-shrink film body, the pressing block can be pushed down directly to extend the cutter body. Then, the pressing block can be slid to drive the cutter body to cut the heat-shrink film body. Afterward, the cutter body will automatically retract under the action of the second spring, which improves the safety when cutting the heat-shrink film body and avoids the problem that the surface of the cigarette logistics box is easily scratched by the operator directly cutting the heat-shrink film body with a paper cutter, thus improving the safety during use. Attached Figure Description

[0020] Figure 1 This utility model presents a three-dimensional structural diagram of a multi-layer biodegradable heat-shrinkable film for cigarette logistics packaging;

[0021] Figure 2 This utility model provides a schematic diagram of the unfolded three-dimensional structure of a multi-layer biodegradable heat shrink film for cigarette logistics packaging;

[0022] Figure 3 This utility model provides a partial cross-sectional structural diagram of a multilayer biodegradable heat-shrinkable film for cigarette logistics packaging;

[0023] Figure 4 This utility model provides a cross-sectional exploded view of a flip-top box with a multi-layer biodegradable heat-shrinkable film for cigarette logistics packaging.

[0024] Figure 5 This invention presents a schematic diagram of the explosive structure of a moving block of a multi-layer biodegradable heat-shrinkable film for cigarette logistics packaging.

[0025] Legend: 1. Storage box; 2. Convenient installation component; 201. Flip-top box; 202. Side lug; 203. Slot; 204. Hand-tightening bolt; 205. Fixing block; 206. First spring; 207. Push rod; 208. Push plate; 209. Locking block; 210. Handle; 211. Heat shrink film body; 3. Moving cutter assembly; 301. Slot; 302. Slide groove; 303. Moving block; 304. Sliding block; 305. Discharge port; 306. Cutter groove; 307. Top block; 308. Second spring; 309. Cutter body; 310. Pressing block. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Examples, such as Figure 1 - Figure 4 As shown, this utility model provides a multi-layer biodegradable heat shrink film for cigarette logistics packaging, including a storage box 1. The surface of the storage box 1 is provided with a convenient installation component 2, which includes a flip-top box 201. The flip-top box 201 is rotatably connected to the surface of the storage box 1 via hinges. Side ears 202 are connected to both sides of the flip-top box 201. Slots 203 are provided on the bottom of both sides of the storage box 1, and hand-tightening bolts 204 are inserted into the slots 203. Fixing blocks 205 are connected to the outer surfaces of both sides of the storage box 1. A first spring 206 is provided inside the fixing block 205, and a push rod 207 is inserted inside the first spring 206. One end of the push rod 207 is connected to a push plate 208, and the other end of the push rod 207 is connected to a handle 210. A locking block 209 is connected to one side of the push plate 208. The storage box 1 is equipped with a heat shrink film body 211. The position and size of the slot 203 match the position and size of the side ear 202. The side ear 202 and the slot 203 form a snap-fit ​​connection. The hand-tightening bolt 204 passes through the slot 203 and forms a threaded connection with the side ear 202. The outer surface of the push plate 208 is in contact with the inner wall of the fixing block 205. The push plate 208 and the first spring 206 form an elastic structure. The positions of the two sets of locking blocks 209 match the positions of the two sides of the heat shrink film body 211.

[0029] The effect achieved by the entire embodiment 1 is that when the heat shrink film body 211 is used up during cigarette logistics packaging and needs to be replaced, the hand-tightening bolt 204 can be rotated in the reverse direction to remove it from the side lug 202. Then, the flip-top box 201 can be rotated open from the surface of the storage box 1 to remove the side lug 202 from the slot 203. Then, both sets of handles 210 can be grabbed and pulled to both sides simultaneously, so that the handles 210 can drive the push plate 208 through the push rod 207 to squeeze the first spring 206, and the locking block 209 can be... After shrinking into the fixing block 205, the heat shrink film body 211 can be placed in the storage box 1. Then, the two sets of handles 210 can be released, allowing the first spring 206 to push the push plate 208 through its own elasticity, causing the locking block 209 to be inserted into both sides of the heat shrink film body 211, thus fixing the heat shrink film body 211 in place. Then, the flip box 201 is rotated to the surface of the storage box 1 via the hinge, and the hand-tightened bolt 204 is threaded through the slot 203 and then fixed to the side ear 202. This allows for quick replacement of the heat shrink film after use, improving the efficiency of logistics packaging.

[0030] Examples, such as Figure 1 and Figure 5 As shown, a movable cutter assembly 3 is provided inside the front end of the flip-top box 201. The movable cutter assembly 3 includes a slot 301, a sliding groove 302 is provided on one inner wall of the slot 301, a movable block 303 is provided inside the slot 301, and a slider 304 is connected to the rear end of the movable block 303. A discharge port 305 is provided at the lower end of the flip-top box 201 located in the slot 301, and a cutter groove 306 is provided at the lower end of the flip-top box 201 located in the discharge port 305. The movable block 304... The internal connection of 3 is a top block 307, the top of the top block 307 is connected to a pressing block 310, the bottom four corners of the top block 307 are all connected to a second spring 308, the bottom of the top block 307 is connected to a cutter body 309, the top block 307 and the second spring 308 form an elastic structure, the moving block 303 is slidably connected to the slide groove 302 through the slider 304, and the position and size of the cutter body 309 match the position and size of the cutter groove 306.

[0031] The effect achieved by the entire embodiment 2 is that after the cigarette logistics box is packaged with the heat-shrink film body 211, the pressing block 310 can be pushed down directly, so that the pressing block 310 can push the top block 307 downward and squeeze the second spring 308, causing the cutter body 309 to extend into the cutter groove 306. Then, the pressing block 310 is slid backward, so that the moving block 303 can slide in the slide groove 302 through the slider 304, and drive the cutter body 309 to cut the heat-shrink film body 211. After cutting, the pressing block 310 is released, and then the cutter body 309 will automatically retract under the action of the second spring 308, which improves the safety when cutting the heat-shrink film body 211 and avoids the problem that the surface of the cigarette logistics box is easily scratched by the operator directly cutting the heat-shrink film body 211 with a paper cutter, thus improving the safety during use.

[0032] Working principle: When the heat shrink film body 211 needs to be installed, the flip-top box 201 can be rotated open, and then both sets of handles 210 can be pulled to both sides simultaneously, so that the locking blocks 209 are in the retracted state. At this time, the heat shrink film body 211 can be placed inside the storage box 1. The locking blocks 209 are pushed into both sides of the heat shrink film body 211 by the elastic force of the first spring 206, thus completing the quick installation. This allows for quick replacement of the heat shrink film after use, improving the efficiency of logistics packaging. The cigarette logistics box is then heat-shrinked... After the film body 211 is packaged, the pressing block 310 can be pushed down to extend the cutter body 309. Then, the pressing block 310 can be slid to drive the cutter body 309 to cut the heat shrink film body 211. Afterward, the cutter body 309 will automatically retract under the action of the second spring 308, which improves the safety of cutting the heat shrink film body 211 and avoids the problem of operators directly cutting the heat shrink film body 211 with a paper cutter, which can easily cause the surface of the cigarette logistics box to be scratched, thus improving the safety during use.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A multi-layer biodegradable heat-shrink film for cigarette logistics packaging, comprising a storage box (1), characterized in that: The surface of the storage box (1) is provided with a convenient installation component (2); The convenient installation component (2) includes a flip-top box (201), which is rotatably connected to the surface of the storage box (1) via a hinge. Both sides of the flip-top box (201) are connected to side ears (202). Both sides of the storage box (1) have slots (203) at the bottom. Tightening bolts (204) are inserted into the slots (203). Both sides of the storage box (1) are connected to fixing blocks (205). A first spring (206) is provided inside the fixing block (205). A push rod (207) is inserted inside the first spring (206). One end of the push rod (207) is connected to a push plate (208). The other end of the push rod (207) is connected to a handle (210). A locking block (209) is connected to one side of the push plate (208). A heat shrink film body (211) is provided inside the storage box (1).

2. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 1, characterized in that: The position and size of the slot (203) match the position and size of the side ear (202), and the side ear (202) and the slot (203) form a snap-fit ​​connection.

3. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 2, characterized in that: The hand-tightening bolt (204) passes through the slot (203) and forms a threaded connection with the side ear (202). The outer surface of the push plate (208) is in contact with the inner wall of the fixing block (205).

4. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 3, characterized in that: The push plate (208) and the first spring (206) form an elastic structure, and the positions of the two sets of locking blocks (209) match the positions of the two sides of the heat shrink film body (211).

5. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 1, characterized in that: The front end of the flip box (201) is provided with a movable cutter assembly (3), which includes a slot (301) and a sliding groove (302) is provided on one side of the inner wall of the slot (301).

6. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 5, characterized in that: The slot (301) is provided with a movable block (303), and the rear end of the movable block (303) is connected to a slider (304). The flip box (201) is provided with a discharge port (305) at the lower end of the slot (301).

7. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 6, characterized in that: The flip-top box (201) has a cutting groove (306) at the lower end of the discharge port (305), and the moving block (303) is connected to a top block (307).

8. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 7, characterized in that: The top of the top block (307) is connected to a pressing block (310), and a second spring (308) is connected to each of the four bottom corners of the top block (307).

9. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 8, characterized in that: The bottom of the top block (307) is connected to the cutter body (309), and the top block (307) and the second spring (308) form an elastic structure.

10. The multilayer biodegradable heat-shrinkable film for cigarette logistics packaging according to claim 9, characterized in that: The movable block (303) is slidably connected to the slide groove (302) via the slider (304), and the position and size of the cutter body (309) match the position and size of the cutter groove (306).

Citation Information

Patent Citations

  • Full-degradable heat-shrinkable packaging film

    CN221092019U