Plastic bag chopping equipment for plastic bag recycling

By using a combination of scrapers and fan nozzles in the shredding equipment, the problem of plastic bags wrapping around the rollers was solved, cutting efficiency was improved, and continuous and efficient operation of the equipment was achieved.

CN224240113UActive Publication Date: 2026-05-15XIONG COUNTY ZHENYONG PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIONG COUNTY ZHENYONG PLASTIC PROD CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Plastic bags tend to get tangled on the shredding rollers after being shredded, affecting the normal operation of the cutting blades and reducing cutting efficiency.

Method used

The design features a scraper that makes close contact with the roller, combined with a fan and nozzles. The scraper moves the plastic bag while the fan and nozzles blow it away, preventing tangling. The combination of a rotating mechanism and a starting mechanism ensures cutting efficiency.

Benefits of technology

This effectively prevents plastic bags from getting tangled on the rollers, improves the working efficiency of the cutting tools, and ensures the continuity and efficiency of the cutting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides plastic bag chopping equipment for recycling plastic bags, belongs to the technical field of plastic bags, and solves the technical problems that the plastic bags are relatively soft, so that the plastic bags are easy to wind on a chopping roller after being chopped, the normal work of a cutting tool is influenced, and the cutting efficiency is reduced. Plastic bag chopping equipment for plastic bag recycling comprises a chopping bin, two rollers are rotationally connected to the interior of the chopping bin, a plurality of cutters are fixedly connected to the surfaces of the two rollers, the cutters are annularly and evenly arranged and are arranged in a mutually matched mode, a rotating mechanism used for rotating the rollers is arranged on one side of the chopping bin, and the rotating mechanism is arranged on the other side of the chopping bin. Scraping plates are arranged among the multiple cutters, the multiple scraping plates are matched with the roller, multiple nozzles are formed in the surfaces of the sides, away from the roller, of the multiple scraping plates, and starting mechanisms used for starting the nozzles are arranged on one sides of the multiple scraping plates. According to the utility model, the plastic bag can be prevented from being wound on the roller through the arrangement of the scraping plate.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic bag technology, and relates to recycling, specifically a plastic bag shredding device for plastic bag recycling. Background Technology

[0002] Plastic bag shredding equipment for recycling is a specialized machine for processing waste plastic bags. Its main function is to shred plastic bags into small particles or flakes for subsequent recycling and reprocessing. This equipment features high-efficiency shredding capacity, automated operation, environmental friendliness, and versatility. It can quickly process various types of plastic bags, reducing their volume and facilitating storage and transportation. It is widely used in recycling plants, plastic manufacturing enterprises, and environmental protection fields, promoting plastic recycling and reducing the environmental burden.

[0003] However, some existing plastic bag shredding equipment for recycling plastic bags has a problem: because the plastic bag material is relatively soft, it is easy for the shredded plastic bag to get tangled on the shredding roller, affecting the normal operation of the cutting blades and thus reducing the cutting efficiency. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plastic bag shredding device for plastic bag recycling. The technical problem to be solved by this utility model is that the material of plastic bags is relatively soft, which makes them easy to get tangled on the shredding roller after being shredded, affecting the normal operation of the cutting blades and thus reducing the cutting efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic bag shredding device for plastic bag recycling includes a shredding chamber with two rollers rotatably connected inside. Multiple cutters are fixedly connected to the surfaces of both rollers, arranged in a ring-like, evenly distributed manner and cooperating with each other. A rotating mechanism for rotating the rollers is provided on one side of the shredding chamber. Scrapers are provided between the cutters, and these scrapers cooperate with the rollers. Multiple nozzles are provided on the surface of the scrapers away from the rollers, and an activation mechanism for activating the nozzles is provided on one side of each scraper. The scrapers prevent plastic bags from getting tangled on the rollers.

[0007] As a further embodiment of this utility model, the rotating mechanism includes two rotating shafts, both of which are rotatably connected to one side of the chopping chamber. Both rollers are fixedly sleeved on the surface of the rotating shafts. One end of each of the two rotating shafts is fixedly sleeved with a gear, and the two gears are configured to cooperate with each other. One of the rotating shafts is fixedly connected to a motor at the end away from the gear, and the motor is fixedly connected to one side of the chopping chamber.

[0008] As a further embodiment of this utility model, the starting mechanism includes a support plate, which is fixedly connected to one side of the scraper. A guide plate is fixedly connected to the surface of the support plate away from the scraper. The guide plate is fixedly connected to one side of the chopping chamber. A connecting pipe is fixedly connected to the surface of the guide plate away from the support plate. The guide plate, connecting pipe, support plate, and scraper are interconnected. The top of the chopping chamber has multiple ventilation openings, each of which is equipped with a fan. The top of the multiple ventilation openings is fixedly connected to the same filter plate. Two feed inlets are symmetrically opened on the surface of the chopping chamber near the fan. A discharge outlet is opened at the bottom of the chopping chamber. The nozzle can be started by the guide plate.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This utility model employs a scraper to clean the gaps in the cutter blades, thus preventing plastic bags from tangling on the rollers. This effectively solves the problem that the soft material of plastic bags easily tangles on the cutting rollers after being shredded, affecting the normal operation of the cutting blades and reducing cutting efficiency. A ventilation opening is provided at the top of the shredding chamber, and a fan is installed inside the ventilation opening. Because the fan is installed directly above the cutter blades, it blows the plastic bags downwards when the fan is turned on, reducing the phenomenon of plastic bags tangling on the rollers. Scrapers are also installed between multiple cutters, and the scrapers are in close contact with the rollers. As the rollers continue to rotate, the scrapers can move the plastic bags on the roller surface. Multiple nozzles are also provided at the bottom of the scrapers, which can further blow the moved plastic bags to prevent them from tangling on the rollers. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a plastic bag shredding device for plastic bag recycling proposed in this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of a plastic bag shredding device for plastic bag recycling proposed in this utility model;

[0013] Figure 3 This is a partial structural diagram of a plastic bag shredding device for plastic bag recycling proposed in this utility model;

[0014] Figure 4 This is a schematic diagram of the rotating mechanism of a plastic bag shredding device for plastic bag recycling proposed in this utility model;

[0015] Figure 5 for Figure 4 A magnified structural diagram at point A in the diagram.

[0016] In the diagram: 1. Shredding chamber; 2. Roller; 3. Guide plate; 101. Feed inlet; 102. Discharge outlet; 103. Ventilation vent; 104. Fan; 105. Filter plate; 201. Cutter; 202. Shaft; 203. Gear; 204. Motor; 301. Connecting pipe; 302. Support plate; 303. Scraper; 304. Nozzle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1 - Figure 5 A plastic bag shredding device for plastic bag recycling includes a shredding chamber 1. Two rollers 2 are rotatably connected inside the shredding chamber 1. Multiple cutters 201 are fixedly connected to the surface of each roller 2. The multiple cutters 201 are evenly arranged in a ring and are mutually coordinated. A rotating mechanism for rotating the rollers 2 is provided on one side of the shredding chamber 1. Scrapers 303 are provided between the multiple cutters 201 and are mutually coordinated with the rollers 2. Multiple nozzles 304 are provided on the surface of the scrapers 303 away from the rollers 2. The scrapers 303 can clean the plastic bags on the surface of the rollers 2. An activation mechanism for activating the nozzles 304 is provided on one side of each scraper 303. The scrapers 303 can prevent plastic bags from getting tangled on the rollers 2.

[0019] Preferably, the rotating mechanism includes two rotating shafts 202, both of which are rotatably connected to one side of the chopping chamber 1. Two rollers 2 are fixedly sleeved on the surface of the rotating shafts 202. One end of each of the two rotating shafts 202 is fixedly sleeved with a gear 203, and the two gears 203 are configured to cooperate with each other. One end of the rotating shaft 202 away from the gear 203 is fixedly connected to a motor 204, and the motor 204 is fixedly connected to one side of the chopping chamber 1.

[0020] Preferably, the starting mechanism includes a support plate 302, which is fixedly connected to one side of the scraper 303. A guide plate 3 is fixedly connected to the surface of the support plate 302 away from the scraper 303. The guide plate 3 is fixedly connected to one side inside the chopping chamber 1. A connecting pipe 301 is fixedly connected to the surface of the guide plate 3 away from the support plate 302. The guide plate 3, the connecting pipe 301, the support plate 302, and the scraper 303 are interconnected. The top of the chopping chamber 1 has multiple ventilation openings 103, and a fan 104 is installed inside each of the multiple ventilation openings 103. The top of the multiple ventilation openings 103 is fixedly connected to the same filter plate 105. The fan 104 can assist in cleaning the roller 2. Two feed inlets 101 are symmetrically opened on the surface of the chopping chamber 1 near the fan 104. The bottom of the chopping chamber 1 has a discharge outlet 102. The guide plate 3 can start the nozzle 304.

[0021] Working Principle: In use, first connect the connecting pipe 301 to the external air pump. After preparation, start the external air pump, fan 104, and motor 204. Once these components are running, place the plastic bag into the chopping chamber 1 through the feed inlet 101. Two sets of cutters 201 are installed inside the chopping chamber 1, and these cutters are designed to work together. One set of cutters 201 is connected to the motor 204 via a rotating shaft 202. When the motor 204 starts, one set of cutters 201 will rotate. Gears 203 are installed at the other end of both rotating shafts 202, and these gears 203 work together. Therefore, when one rotating shaft 202 rotates, the two gears... All shafts 202 rotate, enabling the cutter 201 to shred the plastic bag. A vent 103 is provided at the top of the shredding chamber 1, and a fan 104 is installed inside the vent 103. Since the fan 104 is installed directly above the cutter 201, when the fan 104 is turned on, it can blow the plastic bag downwards to reduce the phenomenon of the plastic bag wrapping around the roller 2. A scraper 303 is also installed between the multiple cutters 201, and the scraper 303 is in close contact with the roller 2. So as the roller 2 continues to rotate, the scraper 303 can move the plastic bag on the surface of the roller 2. Multiple nozzles 304 are provided at the bottom of the scraper 303, so that the moved plastic bag can be further blown through the nozzles 304 to prevent it from wrapping around the roller 2.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic bag shredding device for plastic bag recycling, comprising a shredding chamber (1), characterized in that, The chopping chamber (1) is rotatably connected to two rollers (2). Multiple cutters (201) are fixedly connected to the surfaces of the two rollers (2). The multiple cutters (201) are arranged in a ring and are arranged in a cooperative manner. A rotating mechanism for rotating the rollers (2) is provided on one side of the chopping chamber (1). Scrapers (303) are provided between the multiple cutters (201) and are arranged in a cooperative manner with the rollers (2). Multiple nozzles (304) are provided on the surface of the multiple scrapers (303) away from the rollers (2). A starting mechanism for starting the nozzles (304) is provided on one side of the multiple scrapers (303).

2. The plastic bag shredding equipment for plastic bag recycling according to claim 1, characterized in that, The rotating mechanism includes two rotating shafts (202), both of which are rotatably connected to one side of the chopping bin (1), and both rollers (2) are fixedly sleeved on the surface of the rotating shafts (202).

3. The plastic bag shredding equipment for plastic bag recycling according to claim 2, characterized in that, One end of each of the two shafts (202) is fixedly fitted with a gear (203), and the two gears (203) are arranged to cooperate with each other. One of the shafts (202) is fixedly connected to a motor (204) on the side away from the gear (203), and the motor (204) is fixedly connected to one side of the chopping chamber (1).

4. The plastic bag shredding equipment for plastic bag recycling according to claim 1, characterized in that, The starting mechanism includes a support plate (302), which is fixedly connected to one side of the scraper (303). A guide plate (3) is fixedly connected to the surface of the support plate (302) away from the scraper (303), and the guide plate (3) is fixedly connected to one side inside the chopping chamber (1).

5. The plastic bag shredding equipment for plastic bag recycling according to claim 4, characterized in that, The guide plate (3) is fixedly connected to a connecting pipe (301) on the side away from the support plate (302), and the guide plate (3), connecting pipe (301), support plate (302), and scraper (303) are interconnected.

6. The plastic bag shredding equipment for plastic bag recycling according to claim 1, characterized in that, The chopping chamber (1) has multiple ventilation openings (103) on its top, each of which is equipped with a fan (104). The top of each of the multiple ventilation openings (103) is fixedly connected to the same filter plate (105). The chopping chamber (1) has two symmetrical feed inlets (101) on its surface near the fan (104), and the chopping chamber (1) has a discharge outlet (102) at its bottom.