A degradable plastic bag crushing recycling device

Abstract

The utility model relates to the technical field of plastic recycling, especially a degradable plastic bag crushing and recycling device, which solves the problem of poor crushing effect of the crushing mechanism on the degradable plastic bag in the prior art, and the degradable plastic bag is difficult to be quickly and completely crushed into uniform small pieces. The device comprises a crushing bin, a feed hopper connected to the top of the crushing bin, and a collecting frame connected to the bottom of one side of the crushing bin. Two crushing knife sets that cooperate with each other are installed inside the crushing bin. Two guide slope plates are connected to the bottom of each of the two crushing knife sets on both sides of the crushing bin. The two guide slope plates are connected to the inside of the crushing bin through recovery slope plates on the side away from each other. The utility model makes the uncrushed material re-enter the crushing process, improves the crushing efficiency and uniformity, controls the discharging time of qualified particle size material through the plugging structure, and improves the consistency of the discharging quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, and in particular to a device for crushing and recycling biodegradable plastic bags. Background Technology

[0002] Biodegradable plastic bags are environmentally friendly materials that can gradually decompose into harmless substances in the natural environment through biodegradation, photodegradation, or hydrolysis. They are widely used in food packaging, daily necessities packaging, and agriculture. With the popularization of environmental protection concepts and increasingly stringent regulations, the use of biodegradable plastic bags has been increasing year by year. However, the recycling and reuse of these bags after use still faces many technical challenges. Crushing, as a key step in recycling, directly affects the efficiency of subsequent processes such as melting and regeneration, granulation, and the quality of recycled materials. Therefore, developing efficient, energy-saving, and adaptable crushing and recycling devices for biodegradable plastic bags is of great significance for improving resource utilization and promoting a green circular economy.

[0003] Utility model patent CN214871992U discloses a biodegradable plastic bag crushing and recycling device, including a cutting machine with a first blower fixedly connected to it. The cutting machine has an internal heating device for heating the plastic bag fragments. It also includes a temporary storage assembly, a guide bin, a fixing frame, bearings, a spring damping structure, and a discharge pipe, which enables the guide bin to provide shock absorption and prevent wear caused by vibration. This structure improves the stability and service life of the equipment to a certain extent.

[0004] However, in actual operation, the device still has obvious technical defects: its crushing mechanism is not very effective at crushing biodegradable plastic bags, and it is difficult to quickly and thoroughly crush the plastic bags into uniform small pieces, which leads to a decrease in the efficiency of subsequent heating and melting.

[0005] Therefore, given the shortcomings of existing technologies, we urgently need a biodegradable plastic bag crushing and recycling device to solve the aforementioned problems. This new device should improve crushing efficiency and uniformity, thereby significantly enhancing the overall efficiency and recycling quality of plastic bags, better meeting the needs of modern, high-efficiency, green, and sustainable production, and providing strong technical support for the recycling of biodegradable plastic bags. Summary of the Invention

[0006] The purpose of this invention is to provide a biodegradable plastic bag crushing and recycling device, which solves the problem that the crushing mechanism in the prior art has a poor crushing effect on biodegradable plastic bags, making it difficult to quickly and thoroughly crush the plastic bags into uniform small pieces, resulting in a decrease in subsequent heating and melting efficiency.

[0007] To achieve the above objectives, this utility model provides a biodegradable plastic bag crushing and recycling device, including a crushing chamber, a feeding hopper connected to the top of the crushing chamber, and a collection frame connected to the bottom of one side of the crushing chamber;

[0008] The crushing chamber contains two cooperating crushing blade assemblies. Inside the crushing chamber, at the bottom of both crushing blade assemblies, are guide plates. The two guide plates, on opposite sides, are connected to the interior of the crushing chamber via a recovery plate.

[0009] The inner wall of the crushing chamber is provided with recycling side grooves on both sides. The crushing chamber is provided with collection boxes corresponding to the recycling side grooves on both sides. One side of the collection box is provided with an opening that communicates with the recycling side grooves, and the other side is provided with a connection port. The inside of the connection port is connected to a collection box. A sealing structure is provided at the bottom between the two guide plates.

[0010] The sealing structure includes an arc-shaped roller and a drive motor installed on one side of the crushing chamber. The output shaft of the drive motor is connected to the end of the arc-shaped roller. The diameter of the arc-shaped roller is the same as the distance between the two guide plates, and the bottom sides of the arc-shaped roller are provided with inclined surfaces.

[0011] The bottom of the collection box is provided with a support structure, the top of the support structure is detachably connected to the bottom of the collection box, and one side of the support structure is fixedly connected to the side wall of the crushing chamber.

[0012] The bottom side of the crushing chamber has an interface that matches the collection frame, and a handle is fixedly connected to one side of the collection frame.

[0013] The supporting structure includes two horizontal plates, each with several positioning holes on both sides of its top. A vertical plate is fixedly connected to one end of each horizontal plate, and the vertical plate is fixedly connected to the side wall of the crushing chamber. A connecting plate connects the two vertical plates. Several positioning screws that match the positioning holes are fixedly connected to both sides of the bottom of the collection box, and a connecting nut is threaded to one end of each positioning screw.

[0014] The collection box has several handles fixedly connected to one side, and a support plate is inclinedly provided on the bottom side of the horizontal plate. One end of the support plate is connected to the bottom of the horizontal plate, and the other end is connected to the side wall of the vertical plate.

[0015] This utility model discloses a biodegradable plastic bag crushing and recycling device. By setting two cooperating crushing blade sets, it can form a highly efficient shearing and tearing action inside the crushing chamber, significantly improving the crushing efficiency and uniformity of biodegradable plastic bags, and solving the problems of incomplete crushing and uneven output particle size in traditional equipment. Secondly, by using a structural design that combines a guide plate and a recycling plate, it can effectively guide the incompletely crushed material to quickly enter the recycling side trough and collect it centrally through the collection box in the collection bin. This avoids the problems of high energy consumption and low efficiency caused by multiple transmissions by blowers in the prior art, greatly shortens the crushing cycle time, and improves the overall processing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a structural schematic diagram of the crushing chamber and the collection frame according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the recycling inclined plate and the material guiding inclined plate according to an embodiment of the present invention.

[0020] Figure 4 This is a structural schematic diagram of the connection port and opening in an embodiment of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the support plate and connecting plate according to an embodiment of the present utility model.

[0022] In the diagram: 1. Collection box; 2. Collection bin; 3. Crushing chamber; 4. Feed hopper; 5. Horizontal plate; 6. Vertical plate; 7. Collection frame; 8. Recycling inclined plate; 9. Recycling side trough; 10. Crushing blade assembly; 11. Guide inclined plate; 12. Inclined surface; 13. Arc roller; 14. Handle; 15. Positioning screw; 16. Connection port; 17. Opening; 18. Connecting plate; 19. Support plate; 20. Positioning hole. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example 1

[0024] Please see Figure 1-5As shown, a biodegradable plastic bag crushing and recycling device according to this embodiment includes a crushing chamber 3, a feed hopper 4 connected to the top of the crushing chamber 3, and a collection frame 7 connected to the bottom of one side of the crushing chamber 3.

[0025] The crushing chamber 3 is equipped with two cooperating crushing blade assemblies 10. Inside the crushing chamber 3, at the bottom of both sides of the crushing blade assemblies 10, there are guide plates 11 connected. The two guide plates 11, on opposite sides, are connected to the interior of the crushing chamber 3 through a recovery plate 8.

[0026] Both sides of the inner wall of the crushing chamber 3 are provided with recycling side grooves 9. Both sides of the crushing chamber 3 are provided with collection boxes 2 corresponding to the recycling side grooves 9. One side of the collection box 2 is provided with an opening 17 that communicates with the recycling side grooves 9, and the other side is provided with a connection port 16. The inside of the connection port 16 is connected to the collection box 1. A sealing structure is provided at the bottom between the two guide inclined plates 11.

[0027] The workflow is as follows: During use, the biodegradable plastic bag to be crushed is fed into the crushing chamber 3 from the feed hopper 4. Two cooperating crushing blade sets 10 perform initial crushing of the plastic bag. Small pieces of material fall directly into the top area between the two guide ramps 11, while larger, incompletely crushed pieces are thrown towards the inner walls of the crushing chamber 3 by the centrifugal force generated during the operation of the crushing blade sets 10, and slide down the recycling ramp 8 into the recycling side trough 9. The recycling side trough 9 is connected to an opening 17 on one side of the collection box 2, allowing... Incompletely crushed material can smoothly enter the collection box 2 and eventually fall into the collection box 1 connected to the connection port 16 on the other side. The operator only needs to periodically remove the collection box 1 to pour the incompletely crushed plastic bags back into the feed hopper 4 for further crushing. After multiple rounds of crushing are completed and it is confirmed that most of the material has been fully crushed, the crushed plastic particles can be allowed to enter the collection frame 7 set below through the channel by controlling the sealing structure located at the bottom between the two guide inclined plates 11, thereby realizing the centralized collection and subsequent transfer of crushed material. Example 2

[0028] Please see Figure 1-5As shown in this embodiment, a biodegradable plastic bag crushing and recycling device includes a sealing structure comprising an arc-shaped roller 13 and a drive motor mounted on one side of the crushing chamber 3. The output shaft of the drive motor is connected to the end of the arc-shaped roller 13. The diameter of the arc-shaped roller 13 is the same as the distance between the two guide inclined plates 11, and inclined surfaces 12 are provided on both sides of the bottom of the arc-shaped roller 13. Specifically, through the coordinated arrangement of the arc-shaped roller 13, the drive motor, and the crushing chamber 3 in the sealing structure, after initial crushing, the operator can control the drive motor to rotate the arc-shaped roller 13, so that the channel between the inclined surface 12 at its bottom and the guide inclined plates 11 forms a controllable opening state, thereby flexibly controlling the discharge timing according to the actual crushing situation. This achieves the goal of automatically or semi-automatically discharging qualified particle size material into the collection frame 7 after crushing, avoiding the problem of insufficiently crushed plastic particles being mixed into the finished product, and improving the controllability of the discharge and the uniformity of crushing.

[0029] A matching interface is provided on one side of the bottom of the crushing chamber 3, which is adapted to the collection frame 7. A handle is fixedly connected to one side of the collection frame 7. Specifically, through the matching interface on one side of the bottom of the crushing chamber 3 and the collection frame 7, combined with the handle fixedly installed on one side of the collection frame 7, the crushed plastic particles can fall directly into the collection frame 7 through the matching interface after crushing, and can be quickly retrieved and transferred by using the handle. This achieves the effect of convenient collection and transfer of crushed materials, improving operational convenience and work efficiency. Example 3

[0030] Please see Figure 1-5 As shown in this embodiment, a biodegradable plastic bag crushing and recycling device has a support structure at the bottom of the collection box 2. The top of the support structure is detachably connected to the bottom of the collection box 2, and one side of the support structure is fixedly connected to the side wall of the crushing chamber 3. Specifically, through the coordinated arrangement of components such as the horizontal plate 5, vertical plate 6, and connecting plate 18 in the support structure, one side of the support structure is fixedly connected to the crushing chamber 3, while the other side is detachably connected to the collection box 2, thus providing stable support for the collection box 2. This enhances the overall structural stability of the device, prevents the collection box 2 from shifting or falling off due to gravity or vibration, and also facilitates the maintenance and replacement of the collection box 2.

[0031] The support structure includes two horizontal plates 5. Each horizontal plate 5 has several positioning holes 20 on both sides of its top. A vertical plate 6 is fixedly connected to one end of each horizontal plate 5. The vertical plate 6 is fixedly connected to the side wall of the crushing chamber 3. A connecting plate 18 connects the two vertical plates 6. Several positioning screws 15, which are compatible with the positioning holes 20, are fixedly connected to both sides of the bottom of the collection box 2. One end of each positioning screw 15 is threaded with a connecting nut. Specifically, the positioning holes 20 on the horizontal plates 5 in the support structure, along with the positioning screws 15 and connecting nuts at the bottom of the collection box 2, enable stable installation and quick disassembly of the collection box 2. This improves the installation accuracy and stability of the collection box 2 while also facilitating daily cleaning, maintenance, or replacement of the collection box 1.

[0032] Several handles 14 are fixedly connected to one side of the collection box 1. A support plate 19 is inclinedly arranged on the bottom side of the horizontal plate 5. One end of the support plate 19 is connected to the bottom of the horizontal plate 5, and the other end is connected to the side wall of the vertical plate 6. Specifically, through the cooperation of the handles 14 on one side of the collection box 1 and the inclined support plate 19 at the bottom of the horizontal plate 5, the operator can easily remove or reinstall the collection box 1 from the connection port 16 using the handles 14. At the same time, the connection of one end of the support plate 19 to the horizontal plate 5 and the other end to the vertical plate 6 further enhances the overall rigidity and stability of the support structure. This achieves the dual effect of improving the ease of operation and structural strength of the equipment, and helps to improve the overall durability and user experience of the device.

[0033] The overall structure of this device includes a crushing chamber 3, a feeding hopper 4, a collection frame 7, two crushing blade groups 10, a guide inclined plate 11, a recovery inclined plate 8, a recovery side trough 9, a collection box 2, an opening 17, a connection port 16, a collection box 1, a sealing structure, a support structure, a handle, a positioning hole 20, a horizontal plate 5, a vertical plate 6, a connecting plate 18, a positioning screw 15, a connecting nut, a handle 14, a support plate 19, an arc-shaped roller 13, a drive motor, and an inclined plane 12. The workflow is as follows: The operator feeds the biodegradable plastic bag to be processed into the crushing chamber 3 through the feed hopper 4 located at the top of the crushing chamber 3. The plastic bag is initially crushed by two cooperating crushing blade sets 10 installed inside the crushing chamber 3. The small pieces of crushed material fall directly into the top area between the two guide inclined plates 11, while the large pieces of plastic bag that are not completely crushed are thrown to both sides of the inner wall of the crushing chamber 3 by the centrifugal force generated when the crushing blade sets 10 are running, and slide down along the recovery inclined plate 8 into the recovery side troughs 9 opened on both sides of the crushing chamber 3. The recovery side troughs 9 are connected to the opening 17 opened on one side of the collection box 2, so that the insufficiently crushed material enters the collection box 2 and finally falls into the collection box 1 connected at the connection port 16 on the other side. The bottom of the collection box 2 is provided with a support structure, which includes a horizontal plate 5, a vertical plate 6, and a connecting plate 18. The horizontal plate 5 is provided with multiple positioning holes 20. A matching positioning screw 15 and connecting nut are provided to achieve a detachable connection between the collection box 2 and the support structure, thereby ensuring its stability and ease of replacement. A handle 14 is provided on one side of the collection box 1, which is convenient for operators to take out and pour back into the feed hopper 4 for secondary crushing. After confirming that most of the material has been fully crushed, the arc roller 13 is rotated by controlling the sealing structure - that is, the drive motor installed on one side of the crushing chamber 3. The diameter of the arc roller 13 is consistent with the distance between the two guide inclined plates 11. The bottom of the roller has an inclined surface 12, which forms a controllable opening channel after rotation, so that the crushed material can enter the interface opened at the bottom of the crushing chamber 3 through this channel and fall into the collection frame 7 connected to one side. A handle is provided on one side of the collection frame 7 for easy picking, putting and taking and subsequent transfer. At the same time, a support plate 19 is inclinedly set at the bottom of the horizontal plate 5, one end of which is connected to the horizontal plate 5 and the other end is connected to the vertical plate 6, which is used to enhance the rigidity and stability of the entire support structure.

[0034] The overall beneficial effects of this device are reflected in the following aspects: First, the efficient shearing and tearing action of the two crushing blade groups 10 significantly improves the crushing efficiency and uniformity of biodegradable plastic bags, solving the problem of incomplete crushing in traditional equipment; Second, the design combining the guide inclined plate 11 and the recycling inclined plate 8 realizes the automatic grading and reflux function of materials. Incompletely crushed materials can enter the collection box 1 in the collection box 2 through the recycling side trough 9, and repeated crushing operations can be completed without manual intervention, improving the automation level and continuous operation capability of the equipment, and avoiding the problems of high energy consumption and low efficiency caused by multiple transmissions by blowers in the existing technology; Third, the setting of the arc roller 13 and the drive motor in the sealing structure makes... The operator can flexibly control the discharge timing according to the actual crushing situation, effectively preventing substandard particles from mixing into the finished product and improving the consistency of the output quality; Fourth, the combined design of the horizontal plate 5, vertical plate 6, connecting plate 18, positioning hole 20, positioning screw 15 and connecting nut in the support structure provides a stable installation foundation for the collection box 2, while facilitating maintenance and replacement, and enhancing the adaptability and reliability of the structure; Fifth, the collection frame 7 is connected to the crushing chamber 3 through the interface at the bottom, and the handle greatly improves the convenience of collection and transportation; Sixth, the handle 14 on the collection box 1 works in conjunction with the support plate 19 at the bottom of the horizontal plate 5, further optimizing the ease of operation and structural strength, and improving the durability and practicality of the equipment.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A biodegradable plastic bag crushing and recycling device, characterized in that, include: The crushing chamber, the feed hopper connected to the top of the crushing chamber, and the collection frame connected to the bottom of one side of the crushing chamber; The crushing chamber is equipped with two cooperating crushing blade sets. Inside the crushing chamber, at the bottom of both sides of the crushing blade sets, there are guide plates connected to the inside of the crushing chamber. The two guide plates are connected to the inside of the crushing chamber through a recovery plate on the side that is far apart from each other. The inner wall of the crushing chamber is provided with recycling side grooves on both sides. The crushing chamber is provided with collection boxes corresponding to the recycling side grooves on both sides. One side of the collection box is provided with an opening that communicates with the recycling side grooves, and the other side is provided with a connection port. The inside of the connection port is connected to a collection box. A sealing structure is provided at the bottom between the two guide plates.

2. The biodegradable plastic bag crushing and recycling device according to claim 1, characterized in that, The sealing structure includes an arc-shaped roller and a drive motor installed on one side of the crushing chamber. The output shaft of the drive motor is connected to the end of the arc-shaped roller. The diameter of the arc-shaped roller is the same as the distance between the two guide plates, and the bottom sides of the arc-shaped roller are provided with inclined surfaces.

3. The biodegradable plastic bag crushing and recycling device according to claim 1, characterized in that, The bottom of the collection box is provided with a support structure, the top of the support structure is detachably connected to the bottom of the collection box, and one side of the support structure is fixedly connected to the side wall of the crushing chamber.

4. The biodegradable plastic bag crushing and recycling device according to claim 2, characterized in that, The bottom side of the crushing chamber has an interface that matches the collection frame, and a handle is fixedly connected to one side of the collection frame.

5. The biodegradable plastic bag crushing and recycling device according to claim 3, characterized in that, The support structure includes two horizontal plates, each with several positioning holes on both sides of its top. A vertical plate is fixedly connected to one end of each horizontal plate, and the vertical plate is fixedly connected to the side wall of the crushing chamber. A connecting plate connects the two vertical plates. Several positioning screws that match the positioning holes are fixedly connected to both sides of the bottom of the collection box, and a connecting nut is threaded to one end of each positioning screw.

6. The biodegradable plastic bag crushing and recycling device according to claim 5, characterized in that, Several handles are fixedly connected to one side of the collection box. A support plate is inclinedly provided on the bottom side of the horizontal plate. One end of the support plate is connected to the bottom of the horizontal plate, and the other end is connected to the side wall of the vertical plate.

Images