Single-screw plastic recovery equipment

Abstract

The utility model relates to the technical field of extrusion molding waste recovery, and particularly discloses single-screw plastic recovery equipment which comprises a crushing box, two feeding ports are formed in the upper end of the crushing box, and a roller cutter structure used for crushing plastic is arranged in the crushing box; a compression cylinder is arranged at the lower end of the crushing box, a discharging groove is formed in the bottom of the compression cylinder, a sealing cover is arranged outside the discharging groove, and a first power mechanism for pushing the sealing cover to translate is arranged at the bottom of the crushing box; a guide groove is formed in the bottom of the inner side of the crushing box, a push plate is arranged in the guide groove, and a second power mechanism used for pushing the push plate to move horizontally is arranged at the bottom of the crushing box. And the crushed waste materials can be accumulated in a material guide groove in the bottom of the crushing box, when the material guide groove is full of the waste materials, a second power mechanism can push a push plate to compress the waste materials, the crushed plastic particles still have a large number of gaps, the size of the compressed plastic particles can be greatly reduced, more materials can be contained in the same storage space, and the storage cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of extrusion waste recycling technology, and in particular to a single-screw plastic recycling device. Background Technology

[0002] Single-screw extruders generate a small amount of waste during operation, such as transition material during start-up / shutdown, defective products, or scraps. Directly discarding this waste not only increases processing costs but also pollutes the environment. Recycling waste reduces raw material consumption and waste emissions, complies with environmental regulations, lowers production costs, and improves resource utilization.

[0003] Patent application number CN202420855796.8 discloses a plastic product recycling device, including an extruder body and a crusher body. The crusher body has crushing rollers inside, and extrusion components are located on both sides of the extruder body. Inside the extruder body within the extrusion components are extrusion blocks, each with cutting blades on its inner side. The extrusion components drive the extrusion blocks inward to extrude the plastic products. During extrusion, the plastic products are cut by the staggered cutting blades on the inner side of the extrusion blocks. The large-volume plastic products after extrusion and cutting are discharged through the discharge port and fall into the crushing rollers for further crushing, thus solving the problem of the difficulty in crushing and recycling large-volume plastic products. However, due to the large gaps between the crushed plastic fragments, these gaps affect the space occupied by the waste during subsequent storage and transportation, thereby increasing transportation costs and requiring further optimization. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a single-screw plastic recycling device to overcome the shortcomings of existing systems.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a single screw plastic recycling device, including a crushing box, two feeding ports are provided at the upper end of the crushing box, the feeding ports are fixedly set on the left and right sides of the crushing box, and a roller cutter structure for crushing plastic is provided inside the crushing box;

[0006] A compression cylinder is provided at the lower end of the crushing box. The compression cylinder is fixedly installed on one side of the crushing box. A discharge chute is opened at the bottom of the compression cylinder. A cover is provided outside the discharge chute. A first power mechanism for pushing the cover to move horizontally is provided at the bottom of the crushing box.

[0007] A material guide trough is provided at the bottom of the inner side of the crushing box. A push plate is provided in the material guide trough. The push plate is slidably connected to the material guide trough and the inner wall of the compression cylinder. A second power mechanism is provided at the bottom of the crushing box to push the push plate to move horizontally.

[0008] A further improvement is that the roller cutter structure includes three sets of parallel crushing rollers, which are rotatably arranged inside the crushing box. Multiple teeth are provided on the outside of the crushing rollers, and the teeth on each crushing roller are staggered. A power assembly for controlling the rotation of the crushing rollers is provided on the outside of the crushing box.

[0009] A further improvement is that the power assembly includes a transmission box located outside the crushing box. The transmission box contains three first gears and one second gear. The second gear is positioned between the three first gears and meshes with the first gears. Both the first gears and the second gear are rotatably connected to the transmission box. Each first gear is fixedly connected to each crushing roller via a connecting shaft. A motor is located inside the transmission box, and the output end of the motor is fixedly connected to the second gear.

[0010] A further improvement is that the first power mechanism includes two sets of second hydraulic rods, which are fixedly installed on the left and right sides of the crushing box, and the output ends of the second hydraulic rods are fixedly installed on the left and right sides of the cover.

[0011] A further improvement is that the second power mechanism includes a first hydraulic rod, which is fixedly installed on the side of the crushing box away from the compression cylinder, and the output end of the first hydraulic rod passes through the guide chute and is fixedly connected to the push plate.

[0012] A further improvement is that a support frame is provided at the lower end of the crushing box, and the support frame is fixedly installed at the lower end of the crushing box.

[0013] A further improvement is that the compression cylinder has several ventilation holes on the side away from the crushing box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The crushed waste accumulates in the feed chute at the bottom of the crushing box. When the feed chute is full, the second power mechanism pushes the push plate to compress the waste. The crushed plastic particles still have a lot of voids, and the volume can be greatly reduced after compression. More material can be accommodated in the same storage space, reducing storage costs and improving recycling efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the feeding port in this utility model.

[0018] Figure 2This is a structural diagram of the compression cylinder in this utility model.

[0019] Figure 3 This is a structural diagram of the inside of the crushing box in this utility model.

[0020] Figure 4 This is a structural diagram of the internal structure of the transmission box in this utility model.

[0021] The components include: 1. Crushing box; 2. Feeding port; 3. Transmission box; 4. Support frame; 5. First hydraulic rod; 6. Compression cylinder; 7. Cover; 8. Second hydraulic rod; 9. Discharge chute; 10. Crushing roller; 11. Gear; 12. Push plate; 13. Guide chute; 14. First gear; 15. Second gear; 16. Motor; 17. Ventilation hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a single-screw plastic recycling device, including a crushing box 1. The upper end of the crushing box 1 is provided with two feeding ports 2, which are fixedly arranged on the left and right sides of the crushing box 1. The crushing box 1 is provided with a roller cutter structure for crushing plastic.

[0024] Waste plastic generated by a single-screw extruder can be fed into crushing chamber 1 through the feed port 2 at the top of crushing chamber 1. The roller cutter structure inside crushing chamber 1 will crush the plastic, thus facilitating subsequent processing. The two feed ports 2 can simultaneously receive waste materials from different sources, avoiding the blockage or queuing problems of a single feed port, and significantly improving crushing efficiency.

[0025] A compression cylinder 6 is provided at the lower end of the crushing box 1. The compression cylinder 6 is fixedly installed on one side of the crushing box 1. A discharge chute 9 is opened at the bottom of the compression cylinder 6. A cover 7 is provided outside the discharge chute 9. A first power mechanism for pushing the cover 7 to move horizontally is provided at the bottom of the crushing box 1.

[0026] A guide trough 13 is provided at the bottom of the inner side of the crushing box 1. A push plate 12 is provided in the guide trough 13. The push plate 12 is slidably connected to the guide trough 13 and the inner wall of the compression cylinder 6. A second power mechanism for pushing the push plate 12 to move horizontally is provided at the bottom of the crushing box 1.

[0027] The crushed waste accumulates in the guide trough 13 at the bottom of the crushing box 1. When the guide trough 13 is full of waste, the waste feeding stops, and the second power mechanism pushes the push plate 12. The push plate 12 slides along the guide trough 13 and pushes the waste into the compression cylinder 6 to compress the waste. After the waste is compressed, the first power mechanism pushes the cover 7 to remove the cover 7 from the discharge trough 9 at the bottom of the compression cylinder 6. At this time, the compressed waste in the compression cylinder 6 can fall directly out through the discharge trough 9. The crushed plastic particles still have a lot of voids. After compression, the volume can be greatly reduced. More materials can be accommodated in the same storage space, reducing storage costs.

[0028] Regarding the roller cutter structure:

[0029] The roller cutter structure includes three sets of parallel crushing rollers 10, which are rotatably mounted inside the crushing chamber 1. Multiple teeth 11 are provided on the outer side of each crushing roller 10, with the teeth 11 on each roller staggered. A power assembly for controlling the rotation of the crushing rollers 10 is located on the outer side of the crushing chamber 1. The power assembly controls the rotation of the three sets of crushing rollers 10. During rotation, the crushing rollers 10 crush the plastic falling onto them through the teeth 11. The crushed waste material falls from below the crushing rollers 10 into the guide trough 13.

[0030] Specifically, the power assembly includes a transmission box 3 located outside the crushing chamber 1. The transmission box 3 contains three first gears 14 and one second gear 15. The second gear 15 is positioned between and meshes with the three first gears 14. Both the first gears 14 and the second gear 15 are rotatably connected to the transmission box 3. Each first gear 14 is fixedly connected to each crushing roller 10 via a connecting shaft. A motor 16 is located inside the transmission box 3, and the output end of the motor 16 is fixedly connected to the second gear 15. The transmission box 3 is fixedly located outside the crushing chamber 1, and the motor 16 is fixedly located inside the transmission box 3. The motor 16 controls the rotation of the second gear 15. During rotation, the second gear 15 meshes with the first gears 14, thereby driving each first gear 14 to rotate. The first gears 14, during rotation, fix the crushing rollers 10 to rotate synchronously via the connecting shaft, thus completing the crushing of the waste material.

[0031] Regarding the first and second power mechanisms:

[0032] The first power mechanism includes two sets of second hydraulic rods 8, which are fixedly installed on the left and right sides of the crushing box 1. The output ends of the second hydraulic rods 8 are fixedly installed on the left and right sides of the cover 7. The second hydraulic rods 8 and the cover 7 are horizontally arranged. When the cover 7 is opened, it can be opened by pushing the cover 7 horizontally with the second hydraulic rods 8. The cover 7 will slide along the outer wall of the compression cylinder 6.

[0033] The second power mechanism includes a first hydraulic rod 5, which is fixedly mounted on the side of the crushing box 1 away from the compression cylinder 6. The output end of the first hydraulic rod 5 passes through the guide chute 13 and is fixedly connected to the push plate 12. The horizontal pushing of the push plate 12 is controlled by the first hydraulic rod 5, which will not be described in detail here.

[0034] It is worth explaining in detail that a support frame 4 is provided at the lower end of the crushing box 1, and the support frame 4 is fixedly installed at the lower end of the crushing box 1. The crushing box 1 is supported by the support frame 4.

[0035] In the preferred embodiment, the compression cylinder 6 has several ventilation holes 17 on the side away from the crushing box 1. The ventilation holes 17 serve to discharge compressed air from the compression cylinder 6 so that the push plate 12 can be pushed forward in the compression cylinder 6. The diameter of the ventilation holes 17 should be smaller than that of the waste debris. After long-term use, the ventilation holes 17 may still become clogged and need to be cleared by the user regularly.

[0036] How this application works:

[0037] Waste plastic generated by the single-screw extruder can be fed into the crushing box 1 through the feeding port 2 at the top of the crushing box 1. The roller cutter structure inside the crushing box 1 will crush the plastic. The crushed waste will accumulate in the guide trough 13 at the bottom of the crushing box 1. When the guide trough 13 is full of waste, the waste feeding will be stopped. Then, the second power mechanism will push the push plate 12. The push plate 12 will slide along the guide trough 13 and push the waste into the compression cylinder 6 to compress the waste. After the waste is compressed, the first power mechanism will push the cover 7 to remove the cover 7 from the discharge trough 9 at the bottom of the compression cylinder 6. At this time, the compressed waste in the compression cylinder 6 can be directly discharged through the discharge trough 9.

[0038] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A single-screw plastic recycling device, comprising a crushing box (1), wherein the upper end of the crushing box (1) is provided with two feeding ports (2), characterized in that: The feeding port (2) is fixedly installed on the left and right sides of the crushing box (1), and the crushing box (1) is provided with a roller knife structure for crushing plastic; The lower end of the crushing box (1) is provided with a compression cylinder (6), the compression cylinder (6) is fixedly installed on one side of the crushing box (1), the bottom of the compression cylinder (6) is provided with a discharge chute (9), the discharge chute (9) is provided with a cover (7), and the bottom of the crushing box (1) is provided with a first power mechanism for pushing the cover (7) to move horizontally. The bottom of the inner side of the crushing box (1) is provided with a guide groove (13), and a push plate (12) is provided in the guide groove (13). The push plate (12) is slidably connected to the guide groove (13) and the inner wall of the compression cylinder (6). The bottom of the crushing box (1) is provided with a second power mechanism for pushing the push plate (12) to move horizontally.

2. The single-screw plastic recycling equipment according to claim 1, characterized in that: The roller cutter structure includes three sets of parallel crushing rollers (10). The crushing rollers (10) are rotatably disposed inside the crushing box (1). Multiple teeth (11) are provided on the outside of the crushing rollers (10). The teeth (11) on each crushing roller (10) are staggered. A power assembly for controlling the rotation of the crushing rollers (10) is provided on the outside of the crushing box (1).

3. The single-screw plastic recycling equipment according to claim 2, characterized in that: The power assembly includes a transmission box (3) located outside the crushing box (1). The transmission box (3) contains three first gears (14) and one second gear (15). The second gear (15) is positioned between the three first gears (14) and meshes with the first gears (14). Both the first gears (14) and the second gear (15) are rotatably connected to the transmission box (3). Each of the first gears (14) is fixedly connected to each of the crushing rollers (10) via a connecting shaft. A motor (16) is located inside the transmission box (3). The output end of the motor (16) is fixedly connected to the second gear (15).

4. The single-screw plastic recycling equipment according to claim 1, characterized in that: The first power mechanism includes two sets of second hydraulic rods (8), which are fixedly arranged on the left and right sides of the crushing box (1), and the output ends of the second hydraulic rods (8) are fixedly arranged on the left and right sides of the cover (7).

5. A single-screw plastic recycling device according to claim 1, characterized in that: The second power mechanism includes a first hydraulic rod (5), which is fixedly disposed on the side of the crushing box (1) away from the compression cylinder (6). The output end of the first hydraulic rod (5) passes into the guide groove (13) and is fixedly connected to the push plate (12).

6. A single-screw plastic recycling device according to claim 1, characterized in that: The crushing box (1) is provided with a support frame (4) at the lower end, and the support frame (4) is fixedly installed at the lower end of the crushing box (1).

7. A single-screw plastic recycling device according to claim 1, characterized in that: The compression cylinder (6) has several ventilation holes (17) on the side away from the crushing box (1).

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