Waste treatment device for plastic bag production

By designing a plastic bag waste treatment device including placement unit, cutting unit and collection unit, the problems of low crushing efficiency and waste accumulation in the prior art are solved, and automated processing is realized, which significantly improves the waste treatment efficiency.

CN118596410BActive Publication Date: 2024-12-31SHENZHEN YOUBANG PLASTIC PRINTING & PACKAGING CO LTD
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Patent Information

Application Number
CN202410879365.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2024-12-31
Estimated Expiration
2044-07-02

AI Technical Summary

Technical Problem

The existing plastic bag waste crushing device has low crushing efficiency and requires manual removal of waste. The waste is easy to accumulate after crushing, which reduces the processing efficiency.

Method used

A waste treatment device for plastic bag production including a placement unit, a cutting unit and a collection unit is designed. The waste is crushed and quickly discharged by extruding the baffle and the placement rack. The hydraulic device and electric push rod are used to achieve automatic processing.

Benefits of technology

It improves the efficiency of plastic bag waste treatment, avoids waste accumulation, and greatly improves the automation level of crushing and processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of plastic production technology, and in particular to a waste treatment device for plastic bag production, comprising a body, which is a rectangular hollow structure, a placing unit, a cutting unit and a collecting unit are arranged in the body, the cutting unit is arranged below the placing unit, the collecting unit is arranged below the cutting unit, and an extrusion unit is arranged on the outside of the body. The present invention designs a placing unit, which can form a container for placing waste through an extrusion baffle and a placing frame in the placing unit, and can also quickly disperse and discharge the crushed waste after the crushing process is completed, without the need for manual removal of the waste, which greatly improves the processing efficiency of plastic bag waste, and at the same time, avoids the accumulation of waste in the crushing device, further improving the processing efficiency of plastic bag waste.
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Description

Technical Field

[0001] The invention relates to the technical field of plastic production, and in particular to a waste material processing device for plastic bag production. Background Art

[0002] A plastic bag is a bag made of plastic and used to hold items. In modern society, the production technology of plastic bags has become very mature.

[0003] In the process of plastic bag forming, some scraps are often produced due to cutting. These scraps are generally treated as waste. The existing plastic bag waste treatment generally involves first crushing the collected waste, then melting it through a hot melt device and shaping it to make it into plastic particles again. However, the existing plastic bag waste has the following problems after crushing: 1. The crushing efficiency of the existing plastic bag waste crushing device is poor. Generally, a fixed amount of waste is filled into the crushing device for crushing. After crushing, the waste needs to be manually taken out for subsequent crushing treatment. This situation greatly reduces the treatment efficiency of the plastic bag waste; 2. The existing crushing devices are mostly container-type. In the process of taking out the crushed plastic bag waste, some of the waste will accumulate in the crushing device and is difficult to take out. After long-term use, the crushing efficiency of the crushing device will be reduced. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a waste treatment device for plastic bag production.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a waste processing device for plastic bag production, comprising a body, which is a rectangular hollow structure, and a placing unit, a cutting unit and a collecting unit are arranged in the body, the cutting unit is arranged below the placing unit, the collecting unit is arranged below the cutting unit, and an extrusion unit is arranged on the outside of the body.

[0006] In the above-mentioned waste processing device for plastic bag production, the placement unit is composed of an extrusion baffle and a placement rack. Two extrusion baffles are provided and are symmetrically arranged. The placement rack is U-shaped and is provided with a plurality of them. The plurality of placement racks are distributed in a straight line and are arranged between the two extrusion baffles. Extrusion slide grooves are provided on both sides of the inner wall of the body. Extrusion sliders are fixedly installed on both sides of the extrusion baffle. The extrusion sliders are slidably connected in the corresponding extrusion slide grooves. Auxiliary sliders are fixedly installed on both sides of the placement rack. The auxiliary sliders are slidably connected in the corresponding extrusion slide grooves. Two symmetrically arranged driving screws are provided in the body. The two ends of the driving screws are respectively rotatably connected to the inner wall of the body. The two driving screws are respectively located on both sides of the extrusion baffle. The driving screw passes through the extrusion sliders at the corresponding positions and is threadedly connected thereto. Two groups of threads arranged in opposite directions are provided on the driving screw. Through holes are provided on the plurality of auxiliary sliders. The driving screw passes through the through holes on the corresponding plurality of auxiliary sliders. The inner diameter of the through hole is larger than the outer diameter of the driving screw.

[0007] In the above-mentioned waste treatment device for plastic bag production, two symmetrically arranged lifting grooves are provided on the inner wall of the body, and the cutting unit is composed of a lifting frame, an adjusting module and a cutting wire. The lifting frame is in a U-shaped structure, and the outer wall of the lifting frame is slidingly connected to the two lifting grooves. An adjusting groove is provided on the inner wall of the lifting frame. There are four adjusting modules and they are symmetrically arranged in pairs. The sides of the symmetrically arranged adjusting modules away from each other are respectively slidably connected in the corresponding adjusting grooves. A number of driving wheels are rotatably installed in the adjusting modules. There are a number of cutting wires and they are divided into two groups and are evenly distributed in a straight line between the two groups of symmetrically arranged adjusting modules. The cutting wire is in a circular ring structure, and the two ends of the cutting wire extend into the corresponding adjusting modules respectively and are mounted on the corresponding driving wheels.

[0008] In the above-mentioned waste processing device for plastic bag production, limiting plates are slidably connected to the outer walls of both sides of the body, the extrusion unit is arranged at one end of the two limiting plates and fixedly connected thereto, a hydraulic device is fixedly installed on the side of the extrusion unit close to the body through a bracket, a driving motor is fixedly installed in the telescopic end of the hydraulic device, a driving disk with a disc-shaped structure is fixedly installed on the output end of the driving motor through a connecting rod, a pressure plate with a rectangular structure is rotatably installed on the outer wall of the driving disk, the bottom of the pressure plate is flush with the bottom of the driving disk, and a discharge port with a rectangular structure is opened on the top of the body.

[0009] In the above-mentioned waste processing device for plastic bag production, an installation groove is provided on the auxiliary slider, and the positions of the installation grooves on two adjacent auxiliary sliders are staggered with each other. The installation groove passes through the auxiliary slider, and a separation bracket is hinged in the installation groove through a spring hinge, and a roller is rotatably installed on the end of the separation bracket away from the hinge point.

[0010] In the above-mentioned waste material processing device for plastic bag production, a material receiving port is provided on the outer wall of the machine body and below the cutting unit. The material receiving port passes through the machine body, and the collecting unit is inserted into the material receiving port.

[0011] In the above-mentioned waste processing device for plastic bag production, positioning strips are fixedly installed on the inner walls of both sides of the placement rack, and positioning grooves are opened on the sides of the two positioning strips on the same placement rack that are close to each other, and a number of positioning blocks distributed in a straight line are fixedly installed on the outer walls of both sides of the pressure plate, and the several positioning blocks are respectively plugged into the corresponding positioning grooves.

[0012] In the above-mentioned waste processing device for plastic bag production, the inner surface of the U-shaped placement rack is provided with symmetrically arranged inclined surfaces, and the bottom of the placement rack is provided with symmetrically arranged inclined surfaces.

[0013] In the above-mentioned waste treatment device for plastic bag production, an electric push rod is fixedly installed on the top of the driving disk, and the telescopic end of the electric push rod passes through the driving disk.

[0014] Compared with the existing technology, the advantages of the waste treatment device for plastic bag production are: the present invention is designed with a placement unit, and a container can be formed to place waste through the extrusion baffle and the placement rack in the placement unit, and the crushed waste can be quickly dispersed and discharged quickly after the crushing process is completed, without the need for manual removal of the waste, which greatly improves the treatment efficiency of plastic bag waste. At the same time, it avoids the accumulation of waste in the crushing device, further improving the treatment efficiency of plastic bag waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the machine body in the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional cutaway structure of the machine body in the present invention.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the placement unit in the present invention.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the placement rack in the present invention.

[0019] Figure 5 The present invention Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Figure 6 It is a schematic cross-sectional structural diagram of the placement unit and the cutting unit in the present invention.

[0021] Figure 7 The present invention Figure 6Schematic diagram of the local enlarged structure at point B in the middle.

[0022] Figure 8 It is a schematic cross-sectional structural diagram of the regulating module in the present invention.

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cutting unit in the present invention.

[0024] In the figure: 1, machine body; 2, placement unit; 3, cutting unit; 4, collecting unit; 5, extrusion unit; 201, extrusion baffle; 202, placement frame; 101, extrusion slide; 203, extrusion slider; 204, auxiliary slider; 102, driving screw; 205, through hole; 103, lifting slide; 303, cutting wire; 301, lifting frame; 304, adjusting slide; 302, adjusting module; 305, driving wheel; 104, limiting plate; 501, hydraulic device; 502, driving motor; 503, driving disk; 504, pressure plate; 105, discharge port; 206, mounting groove; 207, separation bracket; 106, receiving port; 208, positioning strip; 209, positioning groove; 506, positioning block; 505, electric push rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-Figure 9 A waste processing device for plastic bag production includes a body 1, which is a rectangular hollow structure. A placing unit 2, a cutting unit 3 and a collecting unit 4 are arranged in the body 1. The cutting unit 3 is arranged below the placing unit 2, the collecting unit 4 is arranged below the cutting unit 3, and an extrusion unit 5 is arranged on the outside of the body 1.

[0028] The placement unit 2 is composed of an extrusion baffle 201 and a placement rack 202. Two extrusion baffles 201 are provided and are symmetrically arranged. The placement rack 202 is U-shaped and is provided with a plurality of them. The plurality of placement racks 202 are distributed in a straight line and are arranged between the two extrusion baffles 201. Extrusion chutes 101 are provided on both sides of the inner wall of the body 1. Extrusion sliders 203 are fixedly installed on both sides of the extrusion baffle 201. The extrusion sliders 203 are slidably connected in the corresponding extrusion chutes 101. Auxiliary sliders 204 are fixedly installed on both sides of the placement rack 202. The auxiliary sliders 204 are slidably connected in the corresponding extrusion chutes 101. Two symmetrically arranged driving screws 102 are provided in the body 1. The two ends of the driving screw 102 are rotatably connected to the inner wall of the body 1. The driving screw 102 is respectively located on both sides of the extrusion baffle 201, and the driving screw 102 passes through the extrusion slider 203 at the corresponding position and is threadedly connected thereto. Two groups of threads arranged in opposite directions are provided on the driving screw 102, and through holes 205 are provided on a plurality of auxiliary sliders 204. The driving screw 102 passes through the through holes 205 on the corresponding plurality of auxiliary sliders 204, and the inner diameter of the through hole 205 is larger than the outer diameter of the driving screw 102. When in use, the two groups of threads arranged in opposite directions on the driving screw 102 can drive the two extrusion baffles 201 to move toward each other and extrude the plurality of placement racks 202 so that they are stacked on each other to form a container. At this time, the plastic bag waste can be placed in the container formed by the plurality of placement racks 202 and the extrusion baffle 201 for crushing.

[0029] Two symmetrically arranged lifting slots 103 are provided on the inner wall of the body 1, and the cutting unit 3 is composed of a lifting frame 301, an adjusting module 302 and a cutting wire 303. The lifting frame 301 is in a U-shaped structure, and the outer wall of the lifting frame 301 is slidably connected to the two lifting slots 103. An adjusting slot 304 is provided on the inner wall of the lifting frame 301. Four adjusting modules 302 are provided and symmetrically arranged in pairs. The sides of the symmetrically arranged adjusting modules 302 that are away from each other are respectively slidably connected in the corresponding adjusting slots 304. A plurality of driving wheels 305 are rotatably installed in the adjusting module 302. A plurality of cutting wires 303 are provided and divided into two groups and are evenly distributed in a straight line between the two groups of symmetrically arranged adjusting modules 302. The cutting wire 303 is in a circular ring structure, and the two ends of the cutting wire 303 extend into the pair The corresponding adjustment module 302 is sleeved on the corresponding driving wheel 305. An electric slider is slidably installed in the lifting slide 103, and the electric slider is connected to the lifting frame 301. Driven by the electric slider, the lifting frame 301 can be driven to rise and fall, and the cutting wire 303 can be driven to cut into the gaps between the plurality of placement racks 202 to cut and crush the plastic bag waste. After the cutting is completed, the plurality of cutting wires 303 can be driven by the adjustment module 302 to move to both sides of the plurality of placement racks 202 to avoid the waste from accumulating on the cutting wire 303 during unloading. Another electric slider is slidably installed in the adjustment slide 304, and the other electric slider is connected to the adjustment module 302 and drives it to move horizontally. The plurality of driving wheels 305 in the same adjustment module 302 are interconnected by a rotating shaft and rotated by an external driving device.

[0030] The limiting plates 104 are slidably connected to the outer walls of both sides of the body 1, and the extrusion unit 5 is arranged at one end of the two limiting plates 104 and fixedly connected thereto. A hydraulic device 501 is fixedly installed on one side of the extrusion unit 5 close to the body 1 through a bracket, and a driving motor 502 is fixedly installed in the telescopic end of the hydraulic device 501. A driving disk 503 with a disc-shaped structure is fixedly installed on the output end of the driving motor 502 through a connecting rod. A pressure plate 504 with a rectangular structure is rotatably installed on the outer wall of the driving disk 503, and the bottom of the pressure plate 504 is flush with the bottom of the driving disk 503. A discharge port 105 with a rectangular structure is opened on the top of the body 1. When in use, the extrusion unit 5 is moved to a specified position. At this time, the hydraulic device 501 and the pressure plate 504 will move to the top of the discharge port 105. When the waste is placed in the container composed of the extrusion baffle 201 and the placement rack 202, the pressure plate 504 is pushed by the hydraulic device 501 to be inserted into the discharge port 105 and the waste is squeezed to be compacted.

[0031] The auxiliary slider 204 is provided with a mounting groove 206. The mounting grooves 206 on two adjacent auxiliary sliders 204 are arranged in an interlaced manner. The mounting grooves 206 penetrate the auxiliary slider 204. A separation bracket 207 is hinged in the mounting groove 206 through a spring hinge. A roller is rotatably installed at one end of the separation bracket 207 away from the hinge point. When the crushed waste needs to be discharged, the two extrusion baffles 201 are driven away from each other by driving the lead screw 102. At this time, a plurality of placement racks 202 are released. When the placement racks 202 are released, the separation bracket 207 will collide with the adjacent placement racks under the elastic force of the spring hinge. The auxiliary slider 204 on 202 is pushed open, and the several placement racks 202 in a stacked state are separated from each other under the push of several separation brackets 207. At this time, the crushed waste will automatically fall off. The diameter of the roller on the separation bracket 207 is larger than the width of the auxiliary slider 204. When the separation bracket 207 shrinks in the installation groove 206, the installation groove 206 will extend on both sides of the roller. When two adjacent placement racks 202 approach each other, the roller will contact the adjacent placement rack 202. At this time, there will be a certain gap between the two adjacent placement racks 202, which is convenient for the cutting wire 303 to cut in smoothly.

[0032] A material receiving port 106 is provided on the outer wall of the machine body 1 and below the cutting unit 3 . The material receiving port 106 passes through the machine body 1 . The collecting unit 4 is inserted into the material receiving port 106 . When waste materials fall, they will automatically fall into the collecting unit 4 .

[0033] Positioning strips 208 are fixedly installed on the inner walls of both sides of the placement rack 202, and positioning grooves 209 are opened on the sides where the two positioning strips 208 on the same placement rack 202 are close to each other. A number of positioning blocks 506 distributed in a straight line are fixedly installed on the outer walls of both sides of the pressure plate 504, and the positioning blocks 506 are respectively plugged into the corresponding positioning grooves 209. When the pressure plate 504 is inserted between the number of placement racks 202, the positioning blocks 506 will be driven to be inserted into the corresponding positioning grooves 209. At this time, the number of placement racks 202 are connected to the pressure plate 504. At this time, the number of placement racks 202 will be in a fixed state and will not be separated due to the squeezing of the pressure plate 504.

[0034] The inner surface of the U-shaped placement rack 202 is provided with symmetrically arranged inclined surfaces, and the bottom of the placement rack 202 is provided with symmetrically arranged inclined surfaces. The inclined surfaces on the inner surface of the placement rack 202 can facilitate the smooth sliding of the crushed waste, and the inclined surface at the bottom of the placement rack 202 can facilitate the smooth cutting of the cutting wire 303, which has a certain guiding effect.

[0035] An electric push rod 505 is fixedly installed on the top of the driving disk 503, and the telescopic end of the electric push rod 505 penetrates the driving disk 503. When the pressure plate 504 enters the discharge port 105, it will be restricted by a plurality of placement racks 202. At this time, the driving motor 502 will drive the driving disk 503 to rotate. While the driving disk 503 rotates, the telescopic end of the electric push rod 505 is operated to slowly extend to stir the waste after one cutting, so as to facilitate subsequent cutting and crush the waste.

[0036] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste treatment device for plastic bag production, comprising a body (1), characterized in that: The machine body (1) is a rectangular hollow structure, wherein a placement unit (2), a cutting unit (3) and a collection unit (4) are arranged inside the machine body (1), wherein the cutting unit (3) is arranged below the placement unit (2), and the collection unit (4) is arranged below the cutting unit (3), and an extrusion unit (5) is arranged outside the machine body (1); The placement unit (2) is composed of an extrusion baffle (201) and a placement rack (202), two extrusion baffles (201) are provided and are symmetrically arranged, the placement rack (202) is in a U-shaped structure and is provided with a plurality of them, the plurality of placement racks (202) are distributed in a straight line and are arranged between the two extrusion baffles (201), both sides of the inner wall of the body (1) are provided with extrusion slide grooves (101), both sides of the extrusion baffle (201) are fixedly installed with extrusion sliders (203), the extrusion sliders (203) are slidably connected in the corresponding extrusion slide grooves (101), and both sides of the placement rack (202) are fixedly installed with auxiliary sliders (204), the auxiliary sliders (204) are slidably connected in the corresponding extrusion slide grooves. In the groove (101), two symmetrically arranged driving screws (102) are arranged in the machine body (1), the two ends of the driving screws (102) are respectively rotatably connected to the inner wall of the machine body (1), the two driving screws (102) are respectively located on both sides of the extrusion baffle (201), the driving screws (102) penetrate the extrusion sliders (203) at the corresponding positions and are threadedly connected thereto, the driving screws (102) are provided with two groups of threads arranged in opposite directions to each other, the plurality of auxiliary sliders (204) are each provided with a through hole (205), the driving screws (102) penetrate the through holes (205) on the corresponding plurality of auxiliary sliders (204), and the inner diameter of the through hole (205) is larger than the outer diameter of the driving screw (102); The inner wall of the machine body (1) is provided with two symmetrically arranged lifting grooves (103). The cutting unit (3) is composed of a lifting frame (301), an adjustment module (302) and a cutting wire (303). The lifting frame (301) is in a U-shaped structure. The outer wall of the lifting frame (301) is slidably connected to the two lifting grooves (103). The inner wall of the lifting frame (301) is provided with an adjustment groove (304). Four adjustment modules (302) are provided and are symmetrically arranged in pairs. The sides of the symmetrically arranged adjustment modules (302) that are away from each other are respectively slidably connected in the corresponding adjustment grooves (304). A plurality of driving wheels (305) are rotatably installed in the adjustment modules (302). A plurality of cutting wires (303) are provided and are divided into two groups and are evenly distributed in a straight line between the two groups of symmetrically arranged adjustment modules (302). The cutting wire (303) is in a circular ring structure. The cutting wire (303) ) are respectively extended into the corresponding adjustment module (302) and are sleeved on the corresponding driving wheel (305); an electric slider is slidably installed in the lifting slide groove (103); the electric slider is connected to the lifting frame (301); the electric slider drives the lifting frame (301) to move up and down, drives the cutting wire (303) to cut into the gaps between the plurality of placement racks (202), and cuts and crushes the plastic bag waste; after the cutting is completed, the plurality of cutting wires (303) are driven to move to both sides of the plurality of placement racks (202) through the adjustment module (302) to prevent the waste from accumulating on the cutting wires (303) during unloading; another electric slider is slidably installed in the adjustment slide groove (304); the other electric slider is connected to the adjustment module (302) and drives it to move horizontally; the plurality of driving wheels (305) in the same adjustment module (302) are all connected to each other through a rotating shaft and are rotated by an external driving device; The outer walls of both sides of the machine body (1) are slidably connected to limit plates (104), the extrusion unit (5) is arranged at one end of the two limit plates (104) and is fixedly connected thereto, a hydraulic device (501) is fixedly installed on the side of the extrusion unit (5) close to the machine body (1) through a bracket, a drive motor (502) is fixedly installed in the telescopic end of the hydraulic device (501), a drive disk (503) with a disc-shaped structure is fixedly installed on the output end of the drive motor (502) through a connecting rod, a pressure plate (504) with a rectangular structure is rotatably installed on the outer wall of the drive disk (503), the bottom of the pressure plate (504) is flush with the bottom of the drive disk (503), and a discharge port (105) with a rectangular structure is opened on the top of the machine body (1); The auxiliary slider (204) is provided with a mounting groove (206), and the mounting grooves (206) on two adjacent auxiliary sliders (204) are arranged in an interlaced manner. The mounting grooves (206) penetrate the auxiliary slider (204), and a separation bracket (207) is hinged in the mounting groove (206) via a spring hinge. A roller is rotatably mounted on one end of the separation bracket (207) away from the hinge point. When the crushed waste needs to be discharged, the two extrusion baffles (201) are driven away from each other by the driving screw (102). At this time, the plurality of placement racks (202) are released. When the placement racks (202) are released, the separation brackets (207) are pressed against the adjacent placement racks (202) under the elastic force of the spring hinge. The auxiliary slider (204) on the placement rack (202) is pushed away, and the plurality of placement racks (202) in a stacked state are separated from each other under the push of the plurality of separation brackets (207). At this time, the crushed waste automatically falls off. The diameter of the roller on the separation bracket (207) is larger than the width of the auxiliary slider (204). When the separation bracket (207) is retracted in the installation groove (206), the two sides of the roller extend out of the installation groove (206). When two adjacent placement racks (202) are close to each other, the roller contacts the adjacent placement racks (202). At this time, there is a certain gap between the two adjacent placement racks (202), which facilitates the smooth cutting of the cutting wire (30).

2. A waste treatment device for plastic bag production according to claim 1, characterized in that: A material receiving opening (106) is provided on the outer wall of the machine body (1) and below the cutting unit (3); the material receiving opening (106) passes through the machine body (1); and the collecting unit (4) is inserted into the material receiving opening (106).

3. A waste treatment device for plastic bag production according to claim 1, characterized in that: Positioning strips (208) are fixedly mounted on the inner walls on both sides of the placement rack (202); positioning grooves (209) are provided on the mutually adjacent sides of the two positioning strips (208) on the same placement rack (202); and a plurality of linearly distributed positioning blocks (506) are fixedly mounted on the outer walls on both sides of the pressure plate (504); the plurality of positioning blocks (506) are respectively plugged into the corresponding positioning grooves (209).

4. A waste treatment device for plastic bag production according to claim 1, characterized in that: The inner surface of the U-shaped placement rack (202) is provided with symmetrically arranged inclined surfaces, and the bottom of the placement rack (202) is provided with symmetrically arranged inclined surfaces.

5. The device for processing waste from plastic bag production according to claim 1, characterized in that: An electric push rod (505) is fixedly mounted on the top of the driving disk (503), and the telescopic end of the electric push rod (505) passes through the driving disk (503).