Plastic edge material pulverizer

Abstract

The utility model discloses a kind of plastic leftover material pulverizers, belong to plastic crushing equipment technical field.This kind of plastic leftover material pulverizer, including pulverizer body, the inside rotation of pulverizer body is connected with rotating shaft, rotating shaft's outer wall is welded with moving tool holder, the side of moving tool holder is equipped with tool groove, the inside of tool groove is equipped with moving tool, the side of moving tool holder is equipped with fastening assembly, one end of fastening assembly extends to the inside of tool groove, and with the side of moving tool contact, the side of pulverizer body is equipped with fixed tool holder, the top surface of fixed tool holder is equipped with fixed tool, the cooperation of moving tool holder, tool groove, moving tool, fastening assembly, fixed tool holder and fixed tool in the utility model makes the fixed seat have adjustable function, to adapt to the processing of different thickness plastic leftover material.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic crushing equipment, specifically a plastic scrap crusher. Background Technology

[0002] Plastic crushers are generally used to crush waste plastics and factory plastic scraps for recycling. The granules obtained after crushing can be directly used in extruders or injection molding, or they can be recycled through basic granulation. A search revealed a blade holder structure for a plastic crusher in Chinese patent CN216423127U, including a lower housing, a main shaft, fixed blades, and moving blades. The moving blades are obliquely mounted on the main shaft via moving blade holders. There are two or more fixed blades, each mounted on the lower housing on either side of the main shaft via its own fixed blade holder. One side of the fixed blades is inclined inwards towards the lower housing, while the other side is inclined outwards. This design increases the angle of attack of the fixed blades on both sides of the plastic crusher, making the cutting edge sharper and reducing the cutting force of the crusher. In summary, the blade holder structure of this plastic crusher is more scientific and reasonable, and its widespread application can make plastic crushers more efficient, energy-saving, and durable.

[0003] However, in actual use, this solution has certain limitations because the blades are not easy to adjust after installation, which makes it impossible to adjust the fineness of the plastic shredder. Utility Model Content

[0004] To address the problem of existing fixed bases being inconvenient to adjust, this utility model provides a plastic scrap crusher.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A plastic scrap crusher includes a crusher body, a rotating shaft rotatably connected inside the crusher body, a movable blade holder welded to the outer wall of the rotating shaft, a blade groove on one side of the movable blade holder, a movable blade inside the blade groove, a fastening component on one side of the movable blade holder, one end of the fastening component extending into the blade groove and contacting one side of the movable blade, and a fixed blade holder on one side of the crusher body, with a fixed blade on the top surface of the fixed blade holder.

[0007] Furthermore, the fastening assembly includes a pressure plate, the top surface of which is rotatably connected to a first lead screw. One end of the first lead screw is threadedly connected to one side of the moving tool holder, and the other end of the first lead screw extends to the outside of the tool groove and is connected to a knob.

[0008] The beneficial effect of adopting the above-mentioned further solution is that the pressure plate presses the moving knife under the drive of the first lead screw, and the knob makes it easy to manually adjust the tension of the lead screw, so as to realize the quick disassembly and fixation of the moving knife.

[0009] Furthermore, a gasket is connected to the bottom surface of the pressure plate, and the bottom surface of the gasket is in contact with one side of the moving blade.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the gasket increases the contact area with the moving blade, disperses the clamping force, and avoids the pressure plate directly squeezing and causing wear on the surface of the moving blade.

[0011] Furthermore, a vertical groove is provided on one side of the pressure plate, and a limiting block is provided on the inner wall of the knife groove to engage with the vertical groove.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the limiting block of the vertical groove and the inner wall of the knife groove engages, restricting the movement direction of the pressure plate and ensuring that it moves smoothly in the direction perpendicular to the moving knife under the drive of the screw, thus avoiding uneven force caused by the offset of the pressure plate.

[0013] Furthermore, the fixed blade holder includes a base plate, which is slidably connected to the inside of the crusher body. A horizontal threaded hole is provided on one side of the base plate, and a second lead screw is threaded into the inside of the horizontal threaded hole. The second lead screw is rotatably connected to one side of the crusher body, and one end of the second lead screw extends to the outside of the crusher body and is connected to a handwheel.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the seat plate is connected to the second lead screw through the horizontal screw hole. The handwheel can be turned to drive the seat plate to slide in the body of the crusher, realize the adjustment of the distance between the fixed blade and the moving blade, adapt to the crushing needs of plastic scraps with different hardness and thickness, and improve the versatility and crushing accuracy of the equipment.

[0015] Furthermore, locking blocks are installed on both sides of the base plate, and sliding grooves that engage with the locking blocks are respectively opened on both sides of the inner wall of the crusher body.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the locking block engages with the sliding groove on the inner wall of the crusher body, providing guidance for the sliding of the seat plate, preventing the seat plate from shifting when adjusting the spacing, and ensuring the accurate relative position of the fixed blade and the moving blade.

[0017] Furthermore, the fixed blade includes a first blade body, the top surface of the first blade body has a first blade hole, the inside of the first blade hole is inserted with a first bolt, and the top surface of the base plate has a vertical screw hole that engages with the first bolt.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the first blade body of the fixed blade is connected to the vertical screw hole of the base plate through the first bolt, so as to realize the fixed blade's firm fixation and quick disassembly and assembly, and facilitate timely replacement of the fixed blade after wear.

[0019] Furthermore, the moving blade includes a second blade body, the top surface of which has a second blade hole, and a second bolt is inserted into the interior of the second blade hole. One end of the second bolt is threaded to the outer wall of the moving blade holder.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the second cutter hole provides an installation position for the second bolt, ensuring that the bolt is subjected to uniform force, preventing the moving cutter from loosening during high-speed rotation, and improving the safety of the crushing operation.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This type of plastic scrap shredder, through the coordinated use of a moving blade holder, blade groove, moving blade, fastening assembly, fixed blade holder, and fixed blade, enables the fixed base to have an adjustable function, thereby adapting to the processing of plastic scraps of different coarseness. The shredder body provides the mounting base for the overall structure. The rotating shaft drives the moving blade holder to rotate, and the moving blade is installed on the moving blade holder through the blade groove. The fastening assembly firmly fixes the moving blade to prevent it from falling off due to vibration during the shredding process, ensuring that the moving blade and fixed blade work together to accurately cut the plastic scraps. In addition, while fixing the fixed blade, the fixed blade holder can also adjust the distance between the fixed blade and the moving blade, thereby achieving the shredding processing of scraps of different coarseness. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of a plastic scrap shredder provided for this utility model;

[0024] Figure 2 This utility model provides a plastic scrap shredder. Figure 1 Enlarged schematic diagram of structure A in the middle;

[0025] Figure 3 A schematic diagram of the blade structure of a plastic scrap shredder provided by this utility model;

[0026] Figure 4 A schematic diagram of a fastening assembly for a plastic scrap crusher provided by this utility model;

[0027] Figure 5 A schematic diagram of the fixed blade holder of a plastic scrap crusher provided by this utility model.

[0028] In the diagram: 1. Crusher body; 2. Rotating shaft; 3. Moving blade holder; 4. Fastening assembly; 401. Pressure plate; 402. First lead screw; 403. Knob; 404. Washer; 405. Vertical groove; 5. Fixed blade holder; 501. Seat plate; 502. Horizontal screw hole; 503. Second lead screw; 504. Handwheel; 505. Locking block; 506. Vertical screw hole; 6. Fixed blade; 601. First blade body; 602. First blade hole; 7. Moving blade; 701. Second blade body; 702. Second blade hole; 8. Blade groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a plastic scrap crusher, including a crusher body 1, a rotating shaft 2 rotatably connected inside the crusher body 1, a movable blade seat 3 welded to the outer wall of the rotating shaft 2, a blade groove 8 on one side of the movable blade seat 3, a movable blade 7 inside the blade groove 8, a fastening component 4 on one side of the movable blade seat 3, one end of the fastening component 4 extending into the inside of the blade groove 8 and contacting one side of the movable blade 7, a fixed blade seat 5 on one side of the crusher body 1, a fixed blade 6 on the top surface of the fixed blade seat 5, the crusher body 1 provides the mounting base for the overall structure, the rotating shaft 2 drives the movable blade seat 3 to rotate, the movable blade 7 is mounted on the movable blade seat through the blade groove 8, the fastening component 4 firmly fixes the movable blade to prevent it from falling off due to vibration during the crushing process, ensuring that the movable blade and the fixed blade 6 cooperate to accurately cut plastic scraps, and while fixing the fixed blade 6, the fixed blade seat 5 can also adjust the distance between the fixed blade 6 and the movable blade 7, thereby realizing the crushing treatment of scraps of different coarseness.

[0031] As an embodiment of this utility model, the fastening assembly 4 further includes a pressure plate 401, the top surface of which is rotatably connected to a first lead screw 402. One end of the first lead screw 402 is threadedly connected to one side of the moving blade holder 3. One end of the first lead screw 402 extends to the outside of the blade groove 8 and is connected to a knob 403. The pressure plate 401 presses the moving blade 7 under the drive of the first lead screw 402. The knob 403 facilitates manual adjustment of the lead screw tension, thereby realizing the quick disassembly and fixation of the moving blade.

[0032] As an embodiment of this utility model, the bottom surface of the pressure plate 401 is further connected to a gasket 404. The bottom surface of the gasket 404 is in contact with one side of the moving blade 7. The gasket 404 increases the contact area with the moving blade 7, disperses the clamping force, and avoids the pressure plate directly squeezing and causing wear on the surface of the moving blade.

[0033] As an embodiment of this utility model, a vertical groove 405 is further provided on one side of the pressure plate 401, and a limiting block that engages with the vertical groove 405 is provided on the inner wall of the knife groove 8. The engagement of the vertical groove 405 with the limiting block on the inner wall of the knife groove 8 restricts the movement direction of the pressure plate, ensuring that it moves smoothly in a direction perpendicular to the moving knife under the drive of the screw, and avoiding uneven force caused by the offset of the pressure plate.

[0034] As an embodiment of this utility model, the fixed blade holder 5 further includes a base plate 501, which is slidably connected to the inside of the crusher body 1. A horizontal threaded hole 502 is provided on one side of the base plate 501, and a second lead screw 503 is threadedly connected inside the horizontal threaded hole 502. The second lead screw 503 is rotatably connected to one side of the crusher body 1, and one end of the second lead screw 503 extends to the outside of the crusher body 1 and is connected to a handwheel 504. The base plate 501 cooperates with the second lead screw 503 through the horizontal threaded hole 502. Rotating the handwheel 504 can drive the base plate to slide inside the crusher body 1, thereby adjusting the distance between the fixed blade 6 and the moving blade 7, adapting to the crushing needs of plastic scraps with different hardness and thickness, and improving the versatility and crushing accuracy of the equipment.

[0035] As an embodiment of this utility model, further, locking blocks 505 are respectively installed on both sides of the seat plate 501, and sliding grooves that engage with the locking blocks 505 are respectively opened on both sides of the inner wall of the crusher body 1. The locking blocks 505 engage with the sliding grooves on the inner wall of the crusher body to provide guidance for the sliding of the seat plate, prevent the seat plate from shifting when adjusting the spacing, and ensure the accurate relative position of the fixed blade and the moving blade.

[0036] As an embodiment of this utility model, the fixed blade 6 further includes a first blade body 601, a first blade hole 602 is provided on the top surface of the first blade body 601, a first bolt is inserted into the first blade hole 602, and a vertical screw hole 506 is provided on the top surface of the base plate 501 to engage with the first bolt. The first blade body 601 of the fixed blade 6 is connected to the vertical screw hole 506 of the base plate 501 by the first bolt, so as to realize the fixed blade is firmly fixed and quickly disassembled and assembled, and facilitates timely replacement of the fixed blade after wear.

[0037] As an embodiment of this utility model, the moving blade 7 further includes a second blade body 701, and a second blade hole 702 is provided on the top surface of the second blade body 701. A second bolt is inserted into the second blade hole 702, and one end of the second bolt is threaded to the outer wall of the moving blade seat 3. The second blade hole 702 provides an installation position for the second bolt, ensuring that the bolt is subjected to uniform force, preventing the moving blade from loosening during high-speed rotation, and improving the safety of the crushing operation.

[0038] Specifically, the working principle of this plastic scrap crusher is as follows: During use, the crusher body 1 provides the mounting base. The rotating shaft 2 drives the movable blade holder 3 welded to the outer wall to rotate. The movable blade 7 is mounted on the movable blade holder through the blade groove 8. The pressure plate 401 of the fastening assembly 4 presses the movable blade under the drive of the first screw 402 (adjusted by the knob 403). The bottom gasket 404 prevents wear on the movable blade. The vertical groove 405 on one side of the pressure plate cooperates with the limiting block on the inner wall of the blade groove to ensure stable pressing. At the same time, the movable blade is doubly fixed to the movable blade holder by the second bolt to prevent loosening. In the fixed blade holder 5 on one side of the crusher body, the base plate 501 slides along the inner wall groove (guided by the base plate locking block 505) by rotating the second screw 503 via the handwheel 504, adjusting the distance between the fixed blade 6 and the movable blade 7 to adapt to different crushing needs. The fixed blade is fixed to the vertical screw hole 506 of the base plate by the first bolt. During operation, the rotating moving blade and the fixed blade work together to generate shearing force, which crushes plastic scraps. The blades are easy to disassemble and assemble, making maintenance convenient.

Claims

1. A plastic scrap shredder, characterized in that, The pulverizer includes a pulverizer body (1), a rotating shaft (2) is rotatably connected inside the pulverizer body (1), a moving blade seat (3) is welded to the outer wall of the rotating shaft (2), a blade groove (8) is provided on one side of the moving blade seat (3), a moving blade (7) is provided inside the blade groove (8), a fastening component (4) is provided on one side of the moving blade seat (3), one end of the fastening component (4) extends into the inside of the blade groove (8) and contacts one side of the moving blade (7), a fixed blade seat (5) is provided on one side of the pulverizer body (1), and a fixed blade (6) is provided on the top surface of the fixed blade seat (5).

2. The plastic scrap crusher according to claim 1, characterized in that, The fastening assembly (4) includes a pressure plate (401), the top surface of which is rotatably connected to a first lead screw (402). One end of the first lead screw (402) is threadedly connected to one side of the moving tool holder (3). One end of the first lead screw (402) extends to the outside of the tool groove (8) and is connected to a knob (403).

3. A plastic scrap shredder according to claim 2, characterized in that, The bottom surface of the pressure plate (401) is connected to a gasket (404), and the bottom surface of the gasket (404) is in contact with one side of the moving blade (7).

4. A plastic scrap shredder according to claim 3, characterized in that, A vertical groove (405) is provided on one side of the pressure plate (401), and a limiting block that engages with the vertical groove (405) is provided on the inner wall of the knife groove (8).

5. A plastic scrap shredder according to claim 1, characterized in that, The fixed blade holder (5) includes a base plate (501), which is slidably connected to the inside of the crusher body (1). A horizontal threaded hole (502) is provided on one side of the base plate (501), and a second lead screw (503) is threaded inside the horizontal threaded hole (502). The second lead screw (503) is rotatably connected to one side of the crusher body (1), and one end of the second lead screw (503) extends to the outside of the crusher body (1) and is connected to a handwheel (504).

6. A plastic scrap shredder according to claim 5, characterized in that, The seat plate (501) is equipped with a locking block (505) on both sides, and the inner wall of the crusher body (1) is provided with a sliding groove that engages with the locking block (505) on both sides.

7. A plastic scrap shredder according to claim 6, characterized in that, The fixed blade (6) includes a first blade body (601), the top surface of the first blade body (601) is provided with a first blade hole (602), a first bolt is inserted inside the first blade hole (602), and the top surface of the base plate (501) is provided with a vertical screw hole (506) that meshes with the first bolt.

8. A plastic scrap shredder according to claim 1, characterized in that, The moving blade (7) includes a second blade body (701), and a second blade hole (702) is provided on the top surface of the second blade body (701). A second bolt is inserted inside the second blade hole (702), and one end of the second bolt is threaded to the outer wall of the moving blade seat (3).

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