Plastic film bag production waste recovery device

By using negative pressure suction and anti-tangling blade design in plastic film bag production equipment, the problems of waste input and winding are solved, achieving efficient film bag crushing and stable equipment operation.

CN223933965UActive Publication Date: 2026-02-24QINGDAO YUHAIYUAN PACKAGING CO LTD
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Patent Information

Application Number
CN202520060776.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-02-24
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing plastic film bag production equipment has difficulty efficiently feeding and crushing waste generated when changing film bag production models, and the waste is easily tangled on the transmission rod, affecting the operation of the equipment.

Method used

It adopts a negative pressure suction and anti-tangling blade design. The vacuum pump creates a negative pressure state in the crusher body to quickly suck in the film bag, and the anti-tangling blades cut the rolled film bag under the action of centrifugal force. Combined with the scraper and the crushing motor driving the reamer, it can be crushed efficiently.

Benefits of technology

It improves the feeding efficiency of the film bag, avoids winding on the transmission rod, ensures normal operation of the equipment, and enhances the crushing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plastic film bag recycling, and particularly relates to a plastic film bag production waste recycling device which comprises a smashing machine body, a feeding port and a discharging port, the feeding port and the discharging port are respectively formed in the smashing machine body, an inclined plate is arranged at the bottom of an inner cavity of the smashing machine body, and a smashing motor is installed on the lower surface of the inclined plate. The power output end of the smashing motor penetrates through the cavity wall of the inclined plate and is in transmission connection with a transmission rod, the top of the transmission rod is fixedly connected with a smashing reamer, a vacuum pump is installed on the back of the smashing machine body, the air inlet end of the vacuum pump is connected with the bottom of the smashing motor in a communicating mode, and the connecting position is located below the inclined plate. Anti-twisting blades are annularly arranged on the surface of the transmission rod; the inside of the machine body is in a negative pressure state, a plastic film bag can be rapidly sucked into the machine body from the feeding port, the feeding efficiency can be improved, meanwhile, the plastic film bag wound on the transmission rod can be smashed, and the situation that rotation of the transmission rod is affected after a large number of film bags are wound on the transmission rod is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of plastic film bag recycling technology, specifically a plastic film bag production waste recycling device. Background Technology

[0002] Plastic bags are bags made primarily of plastic (common plastics include polypropylene, polyester, and nylon). They are essential items in daily life and are often used to store other items. They are widely used due to their low cost, extremely light weight, large capacity, and ease of storage. However, because of their extremely long degradation cycle and difficulty in disposal, some countries have banned their production and use. When changing the model of plastic film bag production equipment, adjustments are required, generating a large amount of waste. To avoid wasting raw materials, this waste can be recycled using crushing equipment.

[0003] Existing film bag waste crushing equipment requires the film bags to be fed into the inlet during use. The film bags are lightweight and easily generate friction with the user's hands and clothing, making it difficult to feed the film bags into the machine. At the same time, the film bags are prone to getting tangled on the drive rod of the reamer during crushing, which will affect the high-speed rotation of the reamer. To solve the above problems, this application proposes a plastic film bag production waste recycling device. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a plastic film bag production waste recycling device. The machine body is under negative pressure, which can quickly suck plastic film bags into the machine body from the feeding port, thereby improving the feeding efficiency. At the same time, it can crush the plastic film bags wrapped around the transmission rod, avoiding the problem of a large number of film bags being wrapped around the transmission rod and affecting its rotation, thus solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a plastic film bag production waste recycling device, including a crusher body, a feeding port and a discharging port. The feeding port and the discharging port are respectively opened on the crusher body. An inclined plate is provided at the bottom of the inner cavity of the crusher body. A crushing motor is installed on the lower surface of the inclined plate. The power output end of the crushing motor passes through the cavity wall of the inclined plate, and a transmission rod is driven to the power output end of the crushing motor. A crushing auger is fixedly connected to the top of the transmission rod.

[0008] A vacuum pump is installed on the back of the crusher body. The air inlet of the vacuum pump is connected to the bottom of the crushing motor, and the connection is located below the inclined plate.

[0009] The transmission rod surface is provided with anti-tangling blades.

[0010] Preferably, a scraper is provided around the bottom of the transmission rod, and the scraper abuts against the surface of the inclined plate.

[0011] Preferably, the exhaust end of the vacuum pump is connected to an exhaust pipe.

[0012] Preferably, a lifting groove is provided at the bottom of the discharge port, and a lifting baffle is movably provided inside the lifting groove.

[0013] Preferably, a locking screw is threadedly connected to the surface of the crusher body at a position corresponding to the lifting baffle, and the locking screw abuts against the surface of the lifting baffle.

[0014] Preferably, the transmission rod surface is provided with a plug groove, the plug groove has a convex shape, and the plug groove is equidistantly arranged around the transmission rod surface.

[0015] Preferably, the end of the anti-tangling blade is integrally formed with a limiting boss, the limiting boss is movably inserted into the inner cavity of the insertion groove, and the surface of the limiting boss is provided with a support spring.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] 1. In this utility model, a plastic film bag is fed into the inner cavity of the crusher through the feeding port. The vacuum pump can extract the air from the bottom of the crusher to create a negative pressure state in the inner cavity of the crusher, which allows the plastic film bag to be quickly sucked into the inner cavity of the crusher from the feeding port, thereby improving the feeding efficiency.

[0018] 2. In this utility model, the plastic film bag is rolled up on the surface of the transmission rod, and the anti-tangling blade is squeezed into the insertion groove. Under the action of centrifugal force, the anti-tangling blade is thrown out of the insertion groove. At the same time, the support spring applies an outward pushing force to the anti-tangling blade, which can quickly cut the rolled film bag. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a plastic film bag production waste recycling device according to the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of a waste recycling device for plastic film bag production according to the present invention;

[0021] Figure 3 This is a schematic diagram of the crushing structure of a waste recycling device for plastic film bag production according to this utility model;

[0022] Figure 4 This is a schematic diagram of the anti-snag blade installation structure of a waste recycling device for plastic film bag production according to this utility model.

[0023] Figure label:

[0024] 1. Crusher body; 2. Feed inlet; 3. Discharge outlet; 4. Inclined plate; 5. Crusher motor; 6. Transmission rod; 7. Scraper; 8. Crusher cutter; 9. Vacuum pump; 10. Exhaust pipe; 11. Lifting groove; 12. Lifting baffle; 13. Locking screw; 14. Insertion groove; 15. Anti-snagging blade; 16. Limiting boss; 17. Support spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figure 1-4 As shown, the present invention proposes a waste recycling device for plastic film bag production, including a crusher body 1, a feeding port 2 and a discharging port 3. The feeding port 2 and the discharging port 3 are respectively opened on the crusher body 1. An inclined plate 4 is provided at the bottom of the inner cavity of the crusher body 1. A crushing motor 5 is installed on the lower surface of the inclined plate 4. The power output end of the crushing motor 5 penetrates through the cavity wall of the inclined plate 4, and the power output end of the crushing motor 5 is connected to a transmission rod 6. A crushing auger 8 is fixedly connected to the top of the transmission rod 6.

[0027] A vacuum pump 9 is installed on the back of the crusher body 1. The air inlet of the vacuum pump 9 is connected to the bottom of the crushing motor 5, and the connection is located below the inclined plate 4.

[0028] The transmission rod 6 is provided with an anti-winding blade 15 on its surface ring.

[0029] It should be noted that the plastic film bag is fed into the inner cavity of the crusher body 1 through the feeding port 2. The vacuum pump 9 can extract the air from the bottom of the crusher body 1, creating a negative pressure state inside the crusher body 1. This allows the plastic film bag to be quickly sucked into the inner cavity of the crusher body 1 through the feeding port 2, which can improve the feeding efficiency. The crushing motor 5 drives the crushing auger 8 through the transmission rod 6. The crushing auger 8 can quickly crush the plastic film bag. The scraper 7 rotates synchronously with the transmission rod 6. The scraper 7 can scrape off the plastic debris adsorbed on the surface of the inclined plate 4, which can prevent the plastic debris from clogging the mesh on the surface of the inclined plate 4. At the same time, the rotation of the scraper 7 and the crushing auger 8 can generate centrifugal force, which can quickly throw the crushed debris out of the discharge port 3.

[0030] In this embodiment, as Figure 3 As shown, a scraper 7 is provided around the bottom of the transmission rod 6, and the scraper 7 abuts against the surface of the inclined plate 4.

[0031] It should be noted that the scraper 7 can remove the plastic debris adsorbed on the surface of the inclined plate 4, thus preventing the plastic debris from clogging the mesh on the surface of the inclined plate 4.

[0032] In this embodiment, as Figure 1 As shown, the exhaust end of the vacuum pump 9 is connected to an exhaust pipe 10.

[0033] It should be noted that the gas extracted by the vacuum pump 9 can be discharged through the exhaust pipe 10.

[0034] In this embodiment, as Figure 2 As shown, a lifting groove 11 is provided at the bottom of the discharge port 3, and a lifting baffle 12 is movably provided in the inner cavity of the lifting groove 11. A locking screw 13 is threadedly connected to the surface of the crusher body 1 at the position corresponding to the lifting baffle 12, and the locking screw 13 abuts against the surface of the lifting baffle 12.

[0035] It should be noted that the lifting baffle 12 can block plastic debris inside the machine, slow down the discharge speed of plastic debris, increase the crushing time of plastic debris by the crushing blade 8, and adjust the crushing size of plastic debris.

[0036] In this embodiment, as Figure 4 As shown, the transmission rod 6 has a insertion groove 14 on its surface. The insertion groove 14 has a convex shape and is equidistantly arranged around the surface of the transmission rod 6. The end of the anti-winding blade 15 is integrally formed with a limiting boss 16. The limiting boss 16 is movably inserted into the inner cavity of the insertion groove 14. The surface of the limiting boss 16 is provided with a support spring 17.

[0037] It should be noted that the plastic film bag will be rolled up on the surface of the transmission rod 6, and the anti-tangling blade 15 will be squeezed into the insertion groove 14. Under the action of centrifugal force, the anti-tangling blade 15 will be thrown out of the insertion groove 14. At the same time, the support spring 17 will apply an outward pushing force to the anti-tangling blade 15, so that the rolled-up film bag can be quickly shredded by the anti-tangling blade 15.

[0038] The working principle and usage process of this utility model: A plastic film bag is fed into the inner cavity of the crusher body 1 through the feeding port 2. The vacuum pump 9 extracts air from the bottom of the crusher body 1, creating a negative pressure state within the cavity. This allows the plastic film bag to be quickly drawn into the crusher body 1 from the feeding port 2, improving feeding efficiency. The crushing motor 5 drives the crushing awl 8 via the transmission rod 6, enabling rapid crushing of the plastic film bag. The scraper 7 rotates synchronously with the transmission rod 6, scraping away plastic debris adsorbed on the surface of the inclined plate 4, preventing clogging of the mesh on the inclined plate 4. Simultaneously, the rotation of the scraper 7 and the crushing awl 8 generates centrifugal force, quickly expelling the crushed debris from the discharge port 3. The discharge port 3 is relatively small. The wind force generated by the centrifugal force driving the plastic fragments to rotate can cancel out the air intake of the discharge port 3, which can prevent plastic fragments from being sucked into the crusher body 1 through the discharge port 3. The plastic film bag will be wrapped around the surface of the transmission rod 6, and the anti-snagging blade 15 will be squeezed into the insertion groove 14. Under the action of centrifugal force, the anti-snagging blade 15 is thrown out of the insertion groove 14. At the same time, the support spring 17 applies an outward pushing force to the anti-snagging blade 15, which can quickly cut the wrapped film bag through the anti-snagging blade 15. The lifting baffle 12 can block the plastic fragments in the machine body, which can slow down the discharge speed of plastic fragments and increase the crushing time of the crushing blade 8 on the plastic fragments. The crushing size of the plastic fragments can be adjusted.

[0039] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A waste recycling device for plastic film bag production, comprising a crusher body (1), a feeding port (2), and a discharge port (3), wherein the feeding port (2) and the discharge port (3) are respectively opened on the crusher body (1), characterized in that, The bottom of the inner cavity of the crusher body (1) is provided with an inclined plate (4), and a crushing motor (5) is installed on the lower surface of the inclined plate (4). The power output end of the crushing motor (5) passes through the cavity wall of the inclined plate (4), and the power output end of the crushing motor (5) is connected to a transmission rod (6). A crushing scissor (8) is fixedly connected to the top of the transmission rod (6). A vacuum pump (9) is installed on the back of the crusher body (1). The air inlet of the vacuum pump (9) is connected to the bottom of the crushing motor (5), and the connection is located below the inclined plate (4). The transmission rod (6) is provided with an anti-winding blade (15) on its surface.

2. The plastic film bag production waste recycling device according to claim 1, characterized in that, The bottom of the transmission rod (6) is provided with a scraper (7), which abuts against the surface of the inclined plate (4).

3. The plastic film bag production waste recycling device according to claim 2, characterized in that, The exhaust end of the vacuum pump (9) is connected to an exhaust pipe (10).

4. The plastic film bag production waste recycling device according to claim 3, characterized in that, The bottom of the discharge port (3) is provided with a lifting groove (11), and the inner cavity of the lifting groove (11) is provided with a lifting baffle (12).

5. A waste recycling device for plastic film bag production according to claim 4, characterized in that, A locking screw (13) is threadedly connected to the surface of the crusher body (1) at a position corresponding to the lifting baffle (12), and the locking screw (13) abuts against the surface of the lifting baffle (12).

6. A waste recycling device for plastic film bag production according to claim 5, characterized in that, The transmission rod (6) has a insertion groove (14) on its surface. The insertion groove (14) has a convex shape and is equidistantly arranged around the surface of the transmission rod (6).

7. A waste recycling device for plastic film bag production according to claim 6, characterized in that, The end of the anti-tangling blade (15) is integrally formed with a limiting boss (16), which is movably inserted into the inner cavity of the insertion groove (14). The surface of the limiting boss (16) is provided with a support spring (17).