Detachable movable stationary knife of shredding machine

Abstract

The utility model relates to the technical field of shredding machines, and discloses a detachable movable stationary knife of a shredding machine, which comprises a machine body, motors are mounted on two sides of the machine body, a knife holder is fixedly connected inside a notch, a U-shaped block is mounted at one end of the knife holder, a baffle is fixedly connected to one end of the U-shaped block, and a plurality of stationary knife bodies are mounted at one end of the baffle. According to the detachable movable stationary knife of the shredding machine, a plurality of stationary knife bodies, a baffle and a U-shaped block are integrally designed, and meanwhile, the U-shaped block is in sliding connection with a knife holder, so that when a worker needs to disassemble the detachable movable stationary knife, a master control plate is pulled outwards to drive a plurality of connecting rods to move outwards, and the detachable movable stationary knife is disassembled; and therefore, the limiting relation between the first pushing blocks and the second pushing blocks and the limiting relation between the first stress blocks and the second pushing blocks are relieved, then the inserting rods are driven to be disengaged from the inserting grooves, the U-shaped blocks are rapidly disengaged from the tool apron, and therefore a worker can complete the effect of rapidly disassembling the stationary knife body.

Description

Technical Field

[0001] The utility model relates to the technical field of shredders, in particular to a detachable movable fixed knife of a shredder. Background Art

[0002] A shredder is a crushing device widely used for various materials such as plastics, papers, fabrics, rubbers, etc. The shredder realizes the shearing, tearing and crushing of materials through the cooperation of a rotating moving knife and a fixed-position fixed knife, so as to process the materials into smaller sizes for subsequent reuse or treatment.

[0003] In the existing related technologies, the inventor believes that there are often the following defects: in the design of the existing shredders, the installation method of the fixed knife generally uses threads to directly fix it inside the machine. The method of directly installing threads requires operators to perform precise rotation operations with the aid of professional tools when installing and disassembling the fixed knife. This not only increases the complexity of the operation, but also prolongs the installation and disassembly time. At the same time, once the threaded holes are worn or contaminated, it may lead to problems such as the fixed knife being insecurely installed or unable to be installed. This not only affects the normal operation of the shredder, but also increases the maintenance and replacement costs. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that in the prior art, the fixed knife of the existing shredder is often installed by threads, which requires precise operation with professional tools, increasing complexity and time. Wear or contamination of the threaded holes may cause insecure installation or inability to install, affecting the work and increasing the maintenance cost. For this reason, we propose a detachable movable fixed knife of a shredder.

[0005] To achieve the above object, the present application adopts the following technical solutions: A detachable movable fixed knife for a shredder, including a machine body, motors are installed on both sides of the machine body, a plurality of cutter discs are installed inside the machine body, notch openings are provided at both ends of the machine body, a knife seat is fixedly connected inside the notch opening, a U-shaped block is installed at one end of the knife seat, a baffle is fixedly connected to one end of the U-shaped block, a plurality of fixed knife bodies are installed at one end of the baffle, a plurality of first movable slots and second movable slots are provided at one end of the knife seat, a first push block and a second push block are installed inside the first movable slot and the second movable slot respectively, a first force-receiving block abuts against the top of the first push block, a second force-receiving block abuts against the bottom of the second push block, insertion rods are fixedly connected to the top of the first force-receiving block and the bottom of the second force-receiving block respectively, through slots are provided at the top of the inner cavity of the first movable slot and the bottom of the inner cavity of the second movable slot, insertion slots are provided at the top and bottom of the inner cavity of the U-shaped block, connecting rods are fixedly connected to one end of the first force-receiving block and the second force-receiving block respectively, covers are fixedly connected inside the first movable slot and the second movable slot, an insertion slot is provided on one side of the cover, the surface of the connecting rod is slidably connected to the inside of the insertion slot, and a master control board is fixedly connected to the other end of the connecting rod.

[0006] Preferably, a return spring is fixedly connected to the top of the first force-receiving block and the bottom of the second force-receiving block respectively, the return spring is fixedly connected to the top of the inner cavity of the first movable slot, and the return spring is fixedly connected to the bottom of the inner cavity of the second movable slot.

[0007] Preferably, sliding slots are provided on both sides of the inner cavities of the first movable slot and the second movable slot, and sliding blocks are fixedly connected to both sides of the first push block and the second push block respectively.

[0008] Preferably, the external shape of the insertion rod matches the internal shape of the insertion slot.

[0009] Preferably, one end of the baffle abuts against the inside of the machine body.

[0010] Preferably, arc-shaped surfaces are provided at one ends of the first push block and the second push block respectively, and arc-shaped surfaces are provided at one ends of the first force-receiving block and the second force-receiving block respectively.

[0011] Preferably, a plurality of limiting slots are provided at the top and bottom of the inner cavity of the U-shaped block, and a plurality of limiting blocks are fixedly connected to the top and bottom of the knife seat respectively.

[0012] The technical effects and advantages of the present utility model:

[0013] In the present utility model, by integrally designing a plurality of fixed knife bodies with a baffle and a U-shaped block, and the U-shaped block is slidably connected to the knife holder. When the staff needs to disassemble, by pulling the main control board outwards, the main control board drives a plurality of connecting rods to move outwards, thereby releasing the limiting relationship between each first pushing block and the second pushing block and between the first stress block and the second pushing block, and then driving the insertion rod to disengage from the insertion slot, so that the U-shaped block quickly disengages from the knife holder, enabling the staff to quickly disassemble the fixed knife body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view structural schematic diagram of the present utility model;

[0015] Figure 2 is the structural diagram of the fixed knife splitting of the present utility model;

[0016] Figure 3 is the partial splitting schematic diagram of the installation and disassembly structure of the present utility model;

[0017] Figure 4 is the Figure 3 enlarged schematic diagram at A of the present utility model;

[0018] Figure 5 is the Figure 3 enlarged schematic diagram at B of the present utility model;

[0019] Figure 6 is the cross-sectional view of the installation and disassembly structure of the present utility model;

[0020] Figure 7 is the schematic diagram of the arc surface structure design of the present utility model.

[0021] Legend: 1, machine body; 2, motor; 3, cutter head; 4, notch; 5, knife holder; 6, U-shaped block; 7, baffle; 8, fixed knife body; 9, first movable groove; 10, second movable groove; 11, cover plate; 12, insertion groove; 13, connecting rod; 14, first pushing block; 15, first stress block; 16, second pushing block; 17, second stress block; 18, through groove; 19, insertion slot; 20, main control board; 21, return spring; 22, sliding groove; 23, slider; 24, arc surface; 25, insertion rod; 26, limiting groove; 27, limiting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Now, the present utility model will be further described in detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] Refer to Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 and Figure 6 As shown in Figure 4 , Figure 5 , and Figure 6 , the present utility model provides a technical solution: a detachable movable fixed knife for a shredder, which includes a machine body 1. Motors 2 are installed on both sides of the machine body 1. A plurality of cutter disks 3 are installed inside the machine body 1. Notches 4 are opened at both ends of the machine body 1. A knife seat 5 is fixedly connected inside the notch 4. A U-shaped block 6 is installed at one end of the knife seat 5. A baffle 7 is fixedly connected to one end of the U-shaped block 6. A plurality of fixed knife bodies 8 are installed at one end of the baffle 7. A plurality of first movable grooves 9 and second movable grooves 10 are opened at one end of the knife seat 5. First push blocks 14 and second push blocks 16 are installed inside the first movable grooves 9 and the second movable grooves 10 respectively. A first stress block 15 abuts against the top of the first push block 14. A second stress block 17 abuts against the bottom of the second push block 16. Plug rods 25 are fixedly connected to the top of the first stress block 15 and the bottom of the second stress block 17. Through grooves 18 are opened at the top of the inner cavity of the first movable groove 9 and the bottom of the inner cavity of the second movable groove 10. Plug slots 19 are opened at the top and bottom of the inner cavity of the U-shaped block 6. Connecting rods 13 are fixedly connected to one end of the first stress block 15 and the second stress block 17 respectively. Covers 11 are fixedly connected inside the first movable grooves 9 and the second movable grooves 10. Insertion grooves 12 are opened on one side of the covers 11. The surface of the connecting rod 13 is slidably connected to the inside of the insertion groove 12. The other end of the connecting rod 13 is fixedly connected to a master control board 20. By integrally designing the plurality of fixed knife bodies 8, the baffle 7, and the U-shaped block 6, and simultaneously making the U-shaped block 6 slidably connected to the knife seat 5, when the staff needs to disassemble, by pulling the master control board 20 outwards, the master control board 20 drives the plurality of connecting rods 13 to move outwards, thereby releasing the limiting relationship between each first push block 14 and the second push block 16 and the first stress block 15 and the second push block 16, and then driving the plug rods 25 to disengage from the plug slots 19, so that the U-shaped block 6 quickly disengages from the knife seat 5, thus enabling the staff to quickly disassemble the fixed knife body 8.

[0024] Referring to Figure 6 As shown in Figure 6 , in this implementation: a return spring 21 is fixedly connected to the top of the first stress block 15 and the bottom of the second stress block 17. The return spring 21 is fixedly connected to the top of the inner cavity of the first movable groove 9, and the bottom of the inner cavity of the second movable groove 10 is fixedly connected to the return spring 21. By setting the return spring 21, when the staff releases the first stress block 15 and the second stress block 17, the return spring 21 will drive them to quickly rebound downwards or upwards through its own elastic force, thereby making it more convenient for the staff to use.

[0025] Referring to Figure 6As shown, in this embodiment: slide grooves 22 are opened on both sides of the inner cavity of the first movable groove 9 and the second movable groove 10, and sliders 23 are fixedly connected on both sides of the first push block 14 and the second push block 16. The combination of the slide grooves 22 and the sliders 23 provides a precise moving path for the first push block 14 and the second push block 16, which ensures that the first push block 14 and the second push block 16 can move stably and smoothly in the first movable groove 9 and the second movable groove 10, reducing errors caused by offset or shaking.

[0026] Reference Figure 6 As shown, in this embodiment: the external shape of the plug rod 25 is consistent with the internal shape of the plug slot 19. When the external shape of the plug rod 25 is completely consistent with the internal shape of the plug slot 19, the two can achieve precise matching, reducing shaking or instability caused by gaps or misalignments.

[0027] Reference Figure 1 and Figure 3 As shown, in the present embodiment: one end of the baffle plate 7 is in contact with the interior of the machine body 1. Through the above arrangement, when the fixed knife body 8 is in the installed state, the baffle plate 7 can shield and seal the slots 4 opened at both ends of the machine body 1, thereby preventing leakage from both ends when the machine is shredding the material.

[0028] Reference Figure 7 As shown, in this embodiment: one end of the first pushing block 14 and the second pushing block 16 are each provided with an arc surface 24, and one end of the first force block 15 and the second force block 17 are each provided with an arc surface 24. The design of the arc surface 24 can improve the sliding performance between the first pushing block 14 and the second pushing block 16 and the first force block 15 and the second force block 17. When pushing or force is required, the arc surface 24 can guide the movement more smoothly, reduce resistance, and improve the operating efficiency of the installation structure.

[0029] Reference Figure 4 As shown, in this embodiment: a plurality of limit grooves 26 are provided at the top and bottom of the inner cavity of the U-shaped block 6, and a plurality of limit blocks 27 are fixedly connected to the top and bottom of the tool holder 5. Through the combination of the plurality of limit grooves 26 and the limit blocks 27, the tool holder 5 is supported and fixed at multiple points inside the U-shaped block 6. This multi-point support design significantly enhances the overall stability of the structure and reduces the risk of displacement due to vibration or impact.

[0030] Working principle: By integrating multiple fixed knife bodies 8 with the baffle 7 and the U-shaped block 6, and at the same time, the U-shaped block 6 is slidably connected to the tool holder 5. When the staff needs to disassemble, by pulling the master control board 20 outwards, the master control board 20 drives multiple connecting rods 13 to move outwards, thereby releasing the limiting relationship between each first pushing block 14 and the second pushing block 16 and between the first stress block 15 and the second pushing block 16. Furthermore, it drives the insertion rod 25 to disengage from the insertion slot 19, enabling the U-shaped block 6 to quickly disengage from the tool holder 5, so that the staff can achieve the effect of quickly disassembling the fixed knife body 8. By setting the return spring 21, when the staff releases the first stress block 15 and the second stress block 17, the return spring 21 will drive it to quickly rebound downwards or upwards through its own elastic force, making it more convenient for the staff to use. The combination of the chute 22 and the slider 23 provides an accurate movement path for the first pushing block 14 and the second pushing block 16, which ensures that the first pushing block 14 and the second pushing block 16 can move stably and smoothly in the first moving slot 9 and the second moving slot 10, reducing errors caused by deviation or shaking. When the external shape of the insertion rod 25 completely matches the internal shape of the insertion slot 19, the two can achieve precise cooperation, reducing the shaking or instability caused by gaps or misalignments. Through the above settings, when the fixed knife body 8 is in the installed state, the baffle 7 can play a role in shielding and sealing the slots 4 opened at both ends of the machine body 1, preventing the machine from leaking when shredding materials from both ends. The design of the arc surface 24 can improve the sliding performance between the first pushing block 14 and the second pushing block 16 and the first stress block 15 and the second stress block 17. When pushing or applying force is required, the arc surface 24 can guide the movement more smoothly, reducing resistance and improving the operating efficiency of the installation structure. Through the combination of multiple limiting slots 26 and limiting blocks 27, the tool holder 5 is supported and fixed at multiple points inside the U-shaped block 6. This multi-point support design significantly enhances the overall stability of the structure and reduces the risk of displacement caused by vibration or impact.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shredder with a detachable movable fixed blade, comprising a body (1), characterized in that: Motors (2) are installed on both sides of the machine body (1), a plurality of knife discs (3) are installed inside the machine body (1), notches (4) are provided at both ends of the machine body (1), a knife seat (5) is fixedly connected inside the notch (4), a U-shaped block (6) is installed at one end of the knife seat (5), a baffle (7) is fixedly connected at one end of the U-shaped block (6), a plurality of fixed knife bodies (8) are installed at one end of the baffle (7), a plurality of first movable grooves (9) and second movable grooves (10) are provided at one end of the knife seat (5), a first pushing block (14) and a second pushing block (16) are installed inside the first movable grooves (9) and the second movable grooves (10), the top of the first pushing block (14) is abutted against a first force-bearing block (15), and the bottom of the second pushing block (16) is abutted against a first force-bearing block (15). A second force-bearing block (17) is connected, the top of the first force-bearing block (15) and the bottom of the second force-bearing block (17) are fixedly connected with a plug-in rod (25), the top of the inner cavity of the first movable groove (9) and the bottom of the inner cavity of the second movable groove (10) are both provided with a through groove (18), the top and bottom of the inner cavity of the U-shaped block (6) are both provided with a plug-in groove (19), one end of the first force-bearing block (15) and the second force-bearing block (17) are both fixedly connected with a connecting rod (13), the inside of the first movable groove (9) and the second movable groove (10) are both fixedly connected with a cover plate (11), one side of the cover plate (11) is provided with a through slot (12), the inside of the through slot (12) is slidably connected to the surface of the connecting rod (13), and the other end of the connecting rod (13) is fixedly connected with a main control panel (20).

2. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: The top of the first force-bearing block (15) and the bottom of the second force-bearing block (17) are both fixedly connected with a return spring (21); the top of the inner cavity of the first movable groove (9) is fixedly connected to the return spring (21); and the bottom of the inner cavity of the second movable groove (10) is fixedly connected to the return spring (21).

3. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: Slide grooves (22) are provided on both sides of the inner cavity of the first movable groove (9) and the second movable groove (10), and sliding blocks (23) are fixedly connected on both sides of the first pushing block (14) and the second pushing block (16).

4. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: The external shape of the plug-in rod (25) matches the internal shape of the plug-in slot (19).

5. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: One end of the baffle (7) is in contact with the interior of the machine body (1).

6. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: One end of each of the first pushing block (14) and the second pushing block (16) is provided with an arc surface (24), and one end of each of the first force-bearing block (15) and the second force-bearing block (17) is provided with an arc surface (24).

7. The detachable movable fixed blade of a shredder according to claim 1, characterized in that: The top and bottom of the inner cavity of the U-shaped block (6) are both provided with a plurality of limiting grooves (26), and the top and bottom of the knife seat (5) are both fixedly connected with a plurality of limiting blocks (27).

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