Feeding device for crushing plastic film

Abstract

The utility model relates to the field of plastic recycling and processing machinery, in particular to a feeding device for smashing plastic films, which comprises a smashing machine, a feeding hopper is connected onto the smashing machine, a mounting frame is arranged on the front side of the smashing machine, a fixing frame is connected to the top of the mounting frame, and an electric sliding rail is mounted in the fixing frame. An electric sliding rail is arranged on the feeding hopper, a moving frame is connected to the electric sliding rail in a sliding mode, a feeding assembly is arranged on the feeding hopper and used for pushing materials in the moving frame, and a discharging assembly for assisting discharging is arranged in the feeding hopper. Through the feeding assembly, the moving frame and the electric sliding rail, a film is automatically pushed into the feeding bin, manual winding and compression are not needed, continuous feeding is achieved, manual operation time is shortened, and smashing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling and processing machinery, and in particular to a feeding device for crushing plastic film. Background Technology

[0002] A plastic film shredder is a mechanical device used to process waste plastic film, widely used in the plastic recycling industry. Plastic films come in various forms, including agricultural mulch film, packaging film, plastic bags, and various industrial films, and are mostly made of polyethylene, polypropylene, or polyvinyl chloride. Because plastic film is thin and bulky, directly feeding it into a shredder can easily lead to poor feeding, tangling with the blades, or clogging the machine. Therefore, a suitable feeding device is needed to improve shredding efficiency.

[0003] Existing plastic film shredders typically employ manual feeding, requiring operators to manually roll the film material into bundles to compress its volume for easier feeding into the shredding chamber. The feed inlet is designed as an open structure, relying on manual stacking or rolling of the film before it is fed into the shredder. However, this method is not only labor-intensive, but also prone to the film loosening and becoming entangled in the operator's arms or body during winding and compression, affecting operational safety and efficiency. Furthermore, if the film is not completely cut or the feeding is discontinuous when the shredder starts operating, the operator must forcefully pull the film apart, increasing the difficulty of the work and potentially causing the film to rebound due to sudden force, creating a safety hazard. Utility Model Content

[0004] To overcome the shortcomings of low efficiency and poor safety of manual operation, this utility model provides an automated feeding device for crushing plastic film.

[0005] A feeding device for crushing plastic film includes a crusher, a feeding hopper connected to the crusher, a mounting frame placed on the front side of the crusher, a fixed frame connected to the top of the mounting frame, an electric slide rail installed inside the fixed frame, a movable frame slidably connected to the electric slide rail, a feeding assembly provided on the feeding hopper, the feeding assembly being used to push the material inside the movable frame, and a feeding component for auxiliary feeding inside the feeding hopper.

[0006] Optionally, the feeding assembly includes a lead screw and a push plate. A feeding bin is connected between the fixed frame and the feeding hopper. The movable frame is slidably connected to the feeding bin. An mounting plate is connected to the front side of the feeding bin. A motor is mounted on the top of the feeding hopper. One end of the lead screw is fixedly connected to the output shaft of the motor, and the other end is rotatably connected to the mounting plate. The push plate is slidably connected inside the feeding bin and is slidably connected to the movable frame. The top of the push plate is threadedly connected to the lead screw.

[0007] Optionally, the feeding assembly includes an extrusion frame, a support frame connected to the top of the feeding hopper, the top of the extrusion frame slidably connected to the support frame, a feeding plate connected to the bottom of the extrusion frame, the feeding plate slidably connected inside the feeding hopper, a return spring sleeved on the top of the extrusion frame, one end of the return spring connected to the support frame and the other end connected to the extrusion frame, a connecting rod rotatably connected to the top of the feeding hopper, a bevel gear set provided between the left end of the connecting rod and the rear end of the lead screw, a top block connected to the right end of the connecting rod, the top block pressing against the extrusion frame, and a telescopic pad connected between the top surface of the feeding plate and the inner top surface of the feeding hopper.

[0008] Optionally, at the point where the top block presses against the extrusion frame, the extrusion frame is connected to a buffer pad.

[0009] Optionally, a protective housing is connected to the top of the feed hopper, the lead screw is rotatably connected inside the protective housing, and the connecting rod is rotatably connected to the protective housing.

[0010] Optionally, the bottom of the push plate is rotatably connected to a roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a feeding assembly, a moving frame, and an electric slide rail to automatically push the film into the feeding hopper, eliminating the need for manual winding and compression, achieving continuous feeding, reducing manual operation time, and improving crushing efficiency.

[0013] 2. This utility model uses a feeding component to periodically press the film down in the feeding hopper, avoiding blockage or the need for manual pulling, ensuring that the film enters the crusher stably, reducing manual intervention and improving the continuity of crushing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the mounting bracket and the fixing bracket of this utility model.

[0016] Figure 3 This is an exploded view showing the connection relationship between the electric slide rail and the moving mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of the installation structure of the lead screw and motor of this utility model.

[0018] Figure 5 This is a cross-sectional view showing the connection relationship between the extrusion frame and the feeding plate of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1_Crusher, 2_Feed hopper, 3_Mounting frame, 4_Fixed frame, 5_Electric slide rail, 6_Moving frame, 7_Feed bin, 8_Mounting plate, 9_Screw, 10_Motor, 11_Push plate, 12_Bevel gear set, 13_Connecting rod, 14_Top block, 15_Extrusion frame, 16_Discharge plate, 17_Support frame, 18_Reset spring, 19_Telescopic pad, 20_Buffer pad, 21_Protective shell, 22_Roller. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0021] Example: A feeding device for crushing plastic film, such as Figures 1-5 As shown, the assembly includes a crusher 1, a feed hopper 2, a mounting frame 3, a fixed frame 4, an electric slide rail 5, a moving frame 6, a feeding assembly, and a discharging assembly. The feed hopper 2 is welded onto the crusher 1. The mounting frame 3 is placed on the front side of the crusher 1. The fixed frame 4 is welded to the top of the mounting frame 3. The electric slide rail 5 is installed inside the fixed frame 4. The moving frame 6 is slidably connected to the electric slide rail 5. A partition is set in the middle of the moving frame 6. The feeding assembly is set on the feed hopper 2. The feeding assembly is used to push the material in the moving frame 6. The discharging assembly is set inside the feed hopper 2 to assist in discharging. The film is placed into one of the two independent spaces of the moving frame 6, which is separated by a partition. The electric slide rail 5 drives the moving frame 6 to slide along the fixed frame 4, so that one of the spaces containing the film enters the feed bin 7, while the other space is exposed for workers to continue stacking the film.

[0022] like Figure 2 and Figure 4 As shown, the feeding assembly includes a feeding bin 7, a mounting plate 8, a lead screw 9, a motor 10, and a push plate 11. The feeding bin 7 is connected between the fixed frame 4 and the feeding hopper 2. The movable frame 6 is slidably connected to the feeding bin 7. The length of the movable frame 6 is equal to twice the width of the feeding bin 7. The mounting plate 8 is connected to the front side of the feeding bin 7. The motor 10 is installed on the top of the feeding hopper 2. One end of the lead screw 9 is fixedly connected to the output shaft of the motor 10, and the other end is rotatably connected to the mounting plate 8. The push plate 11 is slidably connected inside the feeding bin 7 and is slidably connected to the movable frame 6. The top of the push plate 11 is threadedly connected to the lead screw 9. The motor 10 drives the lead screw 9 to rotate, and the push plate 11 moves axially along the lead screw 9, horizontally pushing the film inside the feeding bin 7. When one space enters the feeding bin 7, the other space is located outside for manual filling. After the film is pushed into the feeding hopper 2, the lead screw 9 reverses and drives the push plate 11 back to its original position, ready for the next feeding.

[0023] like Figure 5As shown, the feeding assembly includes a bevel gear set 12, a connecting rod 13, a top block 14, an extrusion frame 15, a feeding plate 16, a support frame 17, a return spring 18, and a telescopic pad 19. The support frame 17 is welded to the top of the feeding hopper 2. The top of the extrusion frame 15 is slidably connected to the support frame 17. The feeding plate 16 is welded to the bottom of the extrusion frame 15 and is slidably connected inside the feeding hopper 2. A return spring 18 is fitted onto the top of the extrusion frame 15, and one end of the return spring 18 is connected to the support frame 17. The other end is connected to the extrusion frame 15. A connecting rod 13 is rotatably connected to the top of the feed hopper 2. A bevel gear set 12 is provided between the left end of the connecting rod 13 and the rear end of the lead screw 9. A top block 14 is connected to the right end of the connecting rod 13. The top block 14 is in a pressing fit with the extrusion frame 15. A telescopic pad 19 is connected between the top surface of the feed plate 16 and the inner top surface of the feed hopper 2. When the lead screw 9 rotates, it drives the connecting rod 13 to rotate through the bevel gear set 12, causing the top block 14 to periodically impact the extrusion frame 15. The extrusion frame 15 slides downward under impact, causing the feed plate 16 to apply pressure to the film in the feed hopper 2, promoting the film to fall. The return spring 18 stretches when the extrusion frame 15 moves downward and rebounds after the top block 14 is disengaged, so that the extrusion frame 15 returns to its original position. The telescopic pad 19 moves with the feed plate 16 to prevent the film from accumulating on the top of the plate and ensure that the feeding path is unobstructed.

[0024] like Figure 5 As shown, it also includes a buffer pad 20, at the point where the top block 14 and the extrusion frame 15 are pressed together. The extrusion frame 15 is connected to the buffer pad 20. The buffer pad 20 absorbs the impact force, reduces the noise and wear generated by the hard metal contact, and extends the service life of the component.

[0025] like Figure 1 As shown, it also includes a protective housing 21. The top of the feed hopper 7 is connected to the protective housing 21. The lead screw 9 is rotatably connected inside the protective housing 21. The connecting rod 13 is rotatably connected to the protective housing 21. The protective housing 21 encloses the lead screw 9 and the bevel gear set 12 to prevent dust from entering or to prevent accidental contact by operators, and to ensure stable operation of the transmission components.

[0026] like Figure 4 As shown, it also includes rollers 22. The bottom of the push plate 11 is rotatably connected to the rollers 22. The rollers 22 at the bottom of the push plate 11 roll in the feed bin 7, reducing the frictional resistance when the push plate 11 moves, making feeding easier and reducing wear.

[0027] When film needs to be shredded, the operator turns on the shredder 1, electric slide rail 5, and motor 10, and places the film into the moving frame 6. The electric slide rail 5 drives the moving frame 6 to slide left and right. Since the moving frame 6 cooperates with the fixed frame 4, it forms two boxes, one of which is located in the feeding bin 7. The operator places the film into the other box. After the moving frame 6 with film is placed in the feeding bin 7, the motor 10 drives the lead screw 9 to rotate, and the push plate 11 slides along the feeding bin 7, thereby pushing the film in the moving frame 6 along the feeding bin 7 towards the feeding hopper 2. When the push plate 11 returns to its original position, the operator puts new film into the space on the other side of the moving frame 6. The push plate 11 pushes the film into the feeding hopper 2, which is then pushed through the bevel gear set 1. 2. Transmission: Connecting rod 13 and top block 14 rotate. Top block 14 intermittently strikes extrusion frame 15. When extrusion frame 15 slides downward, it stretches return spring 18. After top block 14 disengages from extrusion frame 15, return spring 18 rebounds, pulling extrusion frame 15 upward to reset. Thus, extrusion frame 15 slides up and down within support frame 17, driving material feed plate 16 to slide up and down, feeding film into feed hopper 2. When material feed plate 16 slides downward, telescopic pad 19 stretches synchronously, preventing film from moving up to the top of material feed plate 16, ensuring the downward movement path of material feed plate 16. Repeat the above process to continuously crush film. After the work is completed, the operator turns off all electrical equipment.

[0028] When the top block 14 strikes the extrusion frame 15, the top block 14 contacts the buffer pad 20, which can buffer the impact force between the top block 14 and the extrusion frame 15, and protect the outer shell 21 to maintain the working environment of the lead screw 9. During the back-and-forth sliding process of the push plate 11, the roller 22 is rotatably connected to the feed bin 7 to reduce friction.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeding device for crushing plastic film, characterized in that, The device includes a crusher (1), a feed hopper (2) connected to the crusher (1), a mounting frame (3) placed on the front side of the crusher (1), a fixed frame (4) connected to the top of the mounting frame (3), an electric slide rail (5) installed inside the fixed frame (4), a movable frame (6) slidably connected to the electric slide rail (5), a feeding component provided on the feed hopper (2), the feeding component being used to push the material inside the movable frame (6), and a feeding component for auxiliary feeding provided inside the feed hopper (2).

2. The feeding device for crushing plastic film according to claim 1, characterized in that, The feeding assembly includes a lead screw (9) and a push plate (11). A feeding bin (7) is connected between the fixed frame (4) and the feeding hopper (2). The movable frame (6) is slidably connected to the feeding bin (7). An mounting plate (8) is connected to the front side of the feeding bin (7). A motor (10) is installed on the top of the feeding hopper (2). One end of the lead screw (9) is fixedly connected to the output shaft of the motor (10), and the other end is rotatably connected to the mounting plate (8). The push plate (11) is slidably connected inside the feeding bin (7), and the push plate (11) is slidably connected to the movable frame (6). The top of the push plate (11) is threadedly connected to the lead screw (9).

3. The feeding device for crushing plastic film according to claim 2, characterized in that, The feeding assembly includes an extrusion frame (15), a support frame (17) is connected to the top of the feed hopper (2), the top of the extrusion frame (15) is slidably connected to the support frame (17), a feeding plate (16) is connected to the bottom of the extrusion frame (15), the feeding plate (16) is slidably connected inside the feed hopper (2), and a return spring (18) is sleeved on the top of the extrusion frame (15), one end of the return spring (18) is connected to the support frame (17). The other end is connected to the extrusion frame (15). A connecting rod (13) is rotatably connected to the top of the feed hopper (2). A bevel gear set (12) is provided between the left end of the connecting rod (13) and the rear end of the lead screw (9). A top block (14) is connected to the right end of the connecting rod (13). The top block (14) is pressed and engaged with the extrusion frame (15). A telescopic pad (19) is connected between the top surface of the feed plate (16) and the inner top surface of the feed hopper (2).

4. The feeding device for crushing plastic film according to claim 3, characterized in that, At the point where the top block (14) presses against the extrusion frame (15), the extrusion frame (15) is connected to a buffer pad (20).

5. The feeding device for crushing plastic film according to claim 4, characterized in that, The top of the feed hopper (7) is connected to a protective shell (21), the lead screw (9) is rotatably connected inside the protective shell (21), and the connecting rod (13) is rotatably connected to the protective shell (21).

6. The feeding device for crushing plastic film according to claim 5, characterized in that, The bottom of the push plate (11) is rotatably connected to a roller (22).

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