Food packaging bag recycling device

Abstract

The utility model discloses a food packaging bag recycling device which comprises a shell, the inner side of the shell is rotationally connected with a plurality of rotating shafts, the rotating shafts are powered by a power assembly, a cutting roller is fixedly connected among the four rotating shafts, the roller surface of the cutting roller is fixedly connected with a plurality of cutter bodies, and the cutter bodies are rotationally distributed on the roller surface of the cutting roller. The spiral directions of the cutter bodies on the roller surfaces of the four cutting rollers are opposite, food packaging bags needing to be crushed enter the crushing device through the inclined plate, the cutter bodies with sawteeth on the four cutting rollers in the crushing device rotate mutually to cut the plastic packaging bags, and the plastic packaging bags are twisted and cut through the spiral cutter bodies; and the problem that the plastic packaging bag is difficult to cut due to the soft material is solved.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling, and more specifically, it relates to a device for recycling food packaging bags. Background Technology

[0002] With the rapid development of modern society, the food packaging industry has expanded rapidly, especially in the use of disposable plastic food packaging bags, where demand continues to grow. These plastic packaging bags should be recycled when they are turned into waste.

[0003] When plastic bags are recycled, they usually need to go through steps such as crushing, melting, and shaping to make plastic raw materials. However, some soft or hard plastic packaging bags have a strong ability to deform. When crushing, these soft packaging bags will stick to the surface of the crushing device. Even with a perfectly fitted crushing roller, these packaging bags cannot be completely crushed.

[0004] Therefore, a new technical solution is needed to address the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for recycling food packaging bags.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: it includes a housing, and four rotating shafts are rotatably connected to the four opposite inner sidewalls of the housing. The rotating shafts are powered by a power assembly. A cutting roller is fixedly connected between the four opposite rotating shafts. A plurality of blades are fixedly connected to the roller surface of the cutting roller. The blades are rotatably distributed on the roller surface of the cutting roller, and the blades on the roller surfaces of the four cutting rollers in the vertical and horizontal directions have opposite spiral directions and mesh with each other, forming a cutting cavity between the four rotating shafts.

[0007] By adopting the above technical solution, this device cuts plastic packaging bags by rotating cutting rollers installed inside the housing. A power component drives a rotating shaft, which in turn drives the cutting rollers to rotate. The blades rotate at high speed with the cutting rollers, achieving continuous cutting of the material. The blades on the four cutting roller surfaces have opposite spiral directions. This design enhances the interaction force between the blades during relative motion, further improving cutting efficiency. The rotating distribution of the blades on the cutting roller surfaces results in a more uniform cut surface, avoiding the uneven cutting marks that may occur in traditional cutting methods. The plastic packaging bags are cut by the mutual cutting between the blades on the cutting roller surfaces. The cutting rollers are driven to rotate by a rotating shaft installed inside the housing. The two are fixedly connected. The rotating shaft is powered by a power unit installed outside the housing. The blades on the four cutting rollers are spirally mounted on the surface of the rollers, with opposite spiral directions. When the spiral blades rotate, they can cut the plastic packaging bags, greatly improving the cutting efficiency. At the same time, the cutting cavity formed between the four rectangularly arranged cutting rollers allows the plastic bag to be cut a second time after the upper two cutting rollers and their blades complete the first cut. This further enhances the cutting effect.

[0008] The present invention is further configured such that: there is a gap between the blades of the cutting rollers, and the blades at the roller surface of the fourth cutting roller are embedded in the gap between the blades of the other cutting roller.

[0009] By adopting the above technical solution, the gap between the plastic packaging bags and the blades can be cut by another blade, and the four blades can shred the plastic packaging bags by cutting.

[0010] The present invention is further configured such that: the blade body bends toward the same end, and the four cutting rollers are bent toward opposite directions.

[0011] By adopting the above technical solution, the twisting cutting effect is increased by designing blades with opposite directions and curves, thereby making plastic packaging bags cut better.

[0012] The present invention is further configured such that a plurality of serrations are provided at the tip of the blade.

[0013] By adopting the above technical solution, since the plastic packaging bag has a smooth side, it is necessary to have some serrations at the tip of the blade to increase the friction effect and make it cut the plastic packaging bag better.

[0014] The present invention is further configured such that: a discharge port is provided at the bottom end of the shell, and the bottom end of the shell is funnel-shaped.

[0015] By adopting the above technical solution, the bottom of the shell is designed in a funnel shape. The funnel shape can better allow the plastic packaging bag to fall into the discharge port by gravity, reducing material accumulation.

[0016] The present invention is further configured such that: an inclined plate is installed at the opening at the top of the shell, the inclined plate is inclined downward towards the center, and the opening of the inclined plate gradually decreases from top to bottom.

[0017] By adopting the above technical solution, the top of the shell is also set as an inclined plate, and the unshredded plastic packaging bag will slide downwards under gravity and thus enter the crushing device.

[0018] In summary, this utility model has the following beneficial effects: the food packaging bag to be crushed enters the crushing device through the inclined plate. The four cutting rollers in the crushing device have serrated blades that rotate relative to each other to cut the plastic packaging bag. The spiral-shaped blades twist and cut the plastic packaging bag, reducing the problem of difficulty in cutting due to the soft material of the plastic packaging bag. At the same time, the cutting cavity formed between the four rectangularly arranged cutting rollers allows the plastic bag to be cut for the first time by the upper two cutting rollers and their blades. The cut plastic then enters the cutting cavity and is cut a second time by the lower two cutting rollers, further increasing the cutting effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the present invention.

[0021] In the diagram: 1. Housing; 11. Power assembly; 12. Rotating shaft; 13. Discharge port; 2. Inclined plate; 3. Cutting roller. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example:

[0024] A device for recycling food packaging bags, such as Figure 1 , Figure 2As shown, the device includes a housing 1. Four rotating shafts 12 are rotatably connected to the four opposing inner sidewalls of the housing 1. The rotating shafts 12 are powered by a power assembly 11. Cutting rollers 3 are fixedly connected between the four opposing rotating shafts 12. Several blades are fixedly connected to the surface of the cutting rollers 3. The blades are rotatably distributed on the surface of the cutting rollers 3. The blades on the four cutting rollers 3 in the vertical and horizontal directions have opposite spiral directions and mesh with each other, forming a cutting cavity between the four rotating shafts 12. When the spiral blades rotate, they can cut the plastic packaging bags inside, which greatly improves the cutting efficiency. There are gaps between the blades of the cutting rollers 3. The blades on the surface of the four cutting rollers 3 are embedded in the gaps between the blades of the other cutting rollers 3. Several serrations are provided at the tips of the blades. A discharge port 13 is provided at the bottom of the housing 1. The bottom of the housing 1 is funnel-shaped. An inclined plate 2 is installed at the opening at the top of the housing 1. The inclined plate 2 slopes downward towards the center. The opening of the inclined plate 2 gradually decreases from top to bottom.

[0025] This device cuts plastic packaging bags by rotating the cutting rollers 3 installed inside the housing. The power assembly 11 drives the rotating shaft 12, which in turn drives the cutting rollers 3 to rotate. The blades rotate at high speed with the cutting rollers 3, achieving continuous cutting of the material. The blades on the four cutting rollers 3 have opposite spiral directions. This design enhances the interaction force between the blades during relative motion, further improving cutting efficiency. The rotating distribution of the blades on the cutting rollers 3 results in a more uniform cut surface, avoiding the uneven cutting marks that may occur in traditional cutting methods. Furthermore, the four blades are arranged in a rectangular pattern... The cutting cavity formed between the cutting rollers 3 allows the plastic bag to be cut for the first time by the two upper cutting rollers 3 and their blades. The cut plastic then enters the cutting cavity and is cut a second time by the two lower cutting rollers 3, further enhancing the cutting effect. The through holes on the four sides of the housing and the rotating connection of the rotating rollers 4 make the entire cutting device more structurally stable. The through holes on the four sides of the housing are used to install roller grooves 21, which are used to install the rotating rollers 4. The cutting rollers 3 cut the plastic packaging bag by mutual cutting between the blades on their surfaces. The rotation of the cutting rollers 3 is driven by the rotation of the rotating shaft 12 installed inside the housing. The two are fixedly connected. The rotating shaft 12 is powered by a power assembly 11 installed outside the housing. The blades mounted on the four cutting rollers 3 are spirally mounted on the surface of the rollers 3, with opposite spiral directions. When the spiral blades rotate, they can cut the plastic packaging bags, greatly improving the cutting efficiency. This device cuts the plastic packaging bags by rotating the cutting rollers 3 installed inside the housing 1. The cutting of the plastic packaging bags is achieved by the mutual cutting between the blades on the roller surfaces of the cutting rollers 3. Since the plastic packaging bags have a smooth side, some serrations need to be made at the blade tips to increase the friction effect and make it easier to cut the plastic. The plastic packaging bag is cut by a rotating shaft 12 installed inside the housing 1. The rotating shaft 12 is fixedly connected to the rotating shaft 12. The rotating shaft 12 is powered by a power assembly 11 installed outside the housing 1. Several rotating teeth 41 are fixedly connected to the surface of the side plates 4 installed on the four sides of the housing 1. The rotating teeth 41 cooperate with the blades on the cutting roller 3 to make a second cut. The gap between the blades is cut by another blade. The four blades can crush the plastic packaging bag by cutting. The twisting cutting effect is increased by designing the blades with opposite directions and bending, so that the plastic packaging bag can be cut better.

[0026] The bottom of the shell 1 is set in a funnel shape, which can better allow the plastic packaging bags to fall into the discharge port 13 by gravity, reducing material accumulation. The top of the shell 1 is also set as an inclined plate 2, so that the uncrushed plastic packaging bags will slide downward under gravity and enter the crushing device.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A device for recycling food packaging bags, comprising a housing (1), characterized in that: The housing (1) has four rotating shafts (12) rotatably connected to its four opposing inner sidewalls. The rotating shafts (12) are powered by a power assembly (11). A cutting roller (3) is fixedly connected between the four opposing rotating shafts (12). Several blades are fixedly connected to the surface of the cutting roller (3). The blades are rotatably distributed on the surface of the cutting roller (3). The blades on the four cutting rollers (3) in the vertical and horizontal directions have opposite spiral directions and mesh with each other, forming a cutting cavity between the four rotating shafts (12).

2. The device for recycling food packaging bags according to claim 1, characterized in that: There is a gap between the blades of the cutting roller (3), and the blade at the roller surface of the cutting roller (3) is embedded in the gap between the blades of the other cutting roller (3).

3. The device for recycling food packaging bags according to claim 2, characterized in that: The blades are bent toward the same end, and the adjacent blades of the four cutting rollers (3) are bent toward each other.

4. The device for recycling food packaging bags according to claim 1, characterized in that: The tip of the blade has several serrations.

5. The device for recycling food packaging bags according to claim 1, characterized in that: The bottom of the shell (1) is provided with a discharge port (13), and the bottom of the shell (1) is funnel-shaped.

6. The device for recycling food packaging bags according to claim 1, characterized in that: An inclined plate (2) is installed at the top opening of the shell (1). The inclined plate (2) slopes downward towards the center, and the opening of the inclined plate (2) gradually decreases from top to bottom.

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