Double-shaft shredding machine for waste refrigerator crushing line

Abstract

The utility model belongs to the technical field of shredding treatment, and particularly relates to a double-shaft shredding machine for a waste refrigerator crushing line, which comprises a device body and a shredding box, tooth rollers are symmetrically arranged in the shredding box, support frames are symmetrically mounted on the inner wall of the shredding box, cleaning assemblies are arranged on the support frames, and the cleaning assemblies are connected with the tooth rollers. And a pressing mechanism is arranged on one side of the shredding box. According to the utility model, fragments clamped in the grooves of the tooth roller can be conveniently cleaned by installing the cleaning assembly, when the tooth roller rotates, if material fragments are clamped in the clamping grooves of the tooth roller, the fragments can be in contact with the hooks along with the rotation of the tooth roller, and because the angle of the cleaning rod is inclined, the fragments can be subjected to the inclined acting force of the hooks when being in contact with the hooks, so that the fragments can be cleaned. When the double-shaft shredder is used for shredding waste refrigerators, the waste refrigerators are hooked by the bent hooks and gradually cleaned from the tooth rollers, frequent shutdown for cleaning fragments clamped on the tooth rollers is not needed, the good crushing state of the tooth rollers is kept, the continuous operation time of the double-shaft shredder for treating the waste refrigerators is prolonged, and the overall production efficiency of the double-shaft shredder for treating the waste refrigerators is improved.

Description

Technical Field

[0001] This utility model relates to the field of shredding technology, specifically a dual-shaft shredder for a waste refrigerator shredding line. Background Technology

[0002] After the waste refrigerators are put into production, they are first manually dismantled and pre-processed at the front-end dismantling station. Then, the remaining refrigerator body (outer shell and insulation layer) is fed into the twin-shaft shredder by the feeding machine for primary crushing. After being mechanically crushed by the twin-shaft shredder, the body is broken into fragments of about 5cm in size so that the material can meet the appropriate crushing size requirements.

[0003] However, because the toothed rollers have multiple grooves on their surface, which allow the two sets of toothed rollers to mesh together to crush large materials, it is inevitable that some broken fragments will get stuck in the grooves during operation. This requires stopping the machine and manually cleaning the fragments on the toothed rollers to prevent excessive accumulation of fragments from affecting the working effect of the shredder. Frequent shutdowns severely affect the overall production efficiency of the twin-shaft shredder. Therefore, it is necessary to develop a twin-shaft shredder for waste refrigerator shredding lines, which can improve the continuous operation time and overall production efficiency of the twin-shaft shredder for waste refrigerator processing. Utility Model Content

[0004] The purpose of this invention is to provide a dual-shaft shredder for a waste refrigerator shredding line, in order to solve the technical problem mentioned in the background art where fragments get stuck in the toothed rollers, requiring the machine to be stopped and manually cleaned.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-shaft shredder for a waste refrigerator shredding line, comprising a device body and a shredding box, wherein the shredding box is mounted on the device body, toothed rollers are symmetrically arranged inside the shredding box, and drive motors are symmetrically arranged on the device body, with the output end of the drive motor connected to the input end of the toothed rollers.

[0006] The inner wall of the shredding box is symmetrically equipped with support frames, which are located below the toothed roller. The support frames are equipped with cleaning components to clean the fragments adhering to the toothed roller. A pressing mechanism is provided on one side of the shredding box to push the material into the toothed roller for shredding.

[0007] Preferably, the cleaning assembly includes a mounting block, a mounting groove, a cleaning rod, a hook, and an elastic element. The mounting block is fixedly mounted on one end of the support frame. The mounting groove is provided on the mounting block, and multiple mounting grooves are provided. The cleaning rod is movably mounted in the mounting groove, and one end of the cleaning rod is located in a groove on the surface of the toothed roller. The hook is located at the top of the cleaning rod and contacts the surface of the toothed roller. The elastic element is compressed and located in the middle part between the mounting groove and the cleaning rod. The mounting block is provided with a slope structure.

[0008] Preferably, the landslide structure includes a baffle and a slot. The baffle is fixedly installed on the mounting block, and the baffle is designed to be inclined to follow the angle of the cleaning rod. The slot is provided at one end of the baffle, and multiple slots are provided. The cleaning rod is engaged in the slot.

[0009] Preferably, the pressing mechanism includes a mounting shaft, a connecting rod slider, a pressing frame, a pressing plate, and a hydraulic rod. The mounting shaft is fixedly mounted on the shredding box, the connecting rod slider is movably mounted on the mounting shaft, and multiple connecting rod sliders are provided. The pressing frame is movably mounted on the connecting rod slider, and the pressing plate is fixedly mounted on the pressing frame.

[0010] Preferably, the pressure plate is designed to be semi-circular and is located above the toothed roller.

[0011] Preferably, a feed hopper is installed above the shredder, and a discharge hopper is installed below the shredder.

[0012] Preferably, a concentration sensor and a flame sensor are installed on both sides of the feed hopper, and a spraying device is provided on the shredding box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model facilitates the removal of fragments stuck in the grooves of the toothed roller by installing a cleaning component. When the toothed roller rotates, if material fragments are stuck in the grooves, they will come into contact with the hooks as the roller rotates. Due to the inclined design of the cleaning rod, the fragments will be subjected to the oblique force of the hooks when they come into contact with them, thus being hooked and gradually removed from the toothed roller. At the same time, when the hooks are cleaning the fragments on the toothed roller, the elastic element will adaptively adjust the force of the hooks on the fragments according to the size and shape of the fragments and the rotation of the toothed roller, so as to avoid the rigid collision between the hooks and the toothed roller or other components and damage. The fragments hooked off by the hooks will slide back down to the discharge hopper through the curvature of the baffle and be discharged through the discharge hopper. There is no need to frequently stop the machine to clean the fragments stuck on the toothed roller, which not only maintains the good crushing state of the toothed roller, but also improves the continuous operation time and overall production efficiency of the twin-shaft shredder for processing waste refrigerators.

[0015] 2. This utility model, through the installation of a pressing mechanism, can smoothly push materials into the toothed rollers. First, the hydraulic rod is activated to reciprocate in extension and retraction. The reciprocating extension and retraction of the hydraulic rod will drive the pressing frame to slide on the mounting shaft through the connecting rod slider. When the pressing frame moves up and down, it will simultaneously drive the pressing plate to make regular back-and-forth movements, thereby pushing the refrigerator body into the shredding box. Inside the shredding box, two parallel toothed rollers rotate alternately, and the blades embedded on their cutter discs shred the refrigerator body to a suitable size, ensuring that the material continuously and evenly enters the shredding area, avoiding equipment idling or overload caused by unstable material conveying, so that the dual-shaft shredder can operate continuously and efficiently. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the toothed roller structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning rod structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the baffle structure of this utility model;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of structure A in the middle;

[0021] Figure 6 This is a schematic diagram of the material pressing frame structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the hydraulic rod structure of this utility model.

[0023] In the diagram: 1. Device body; 2. Shredding box; 3. Toothed roller; 4. Drive motor; 5. Feed hopper; 6. Discharge hopper; 7. Support frame; 8. Mounting block; 9. Mounting groove; 10. Cleaning rod; 11. Hook; 12. Elastic element; 13. Baffle; 14. Slot; 15. Mounting shaft; 16. Connecting rod slider; 17. Pressing frame; 18. Pressing plate; 19. Hydraulic rod; 20. Concentration sensor; 21. Flame sensor; 22. Spraying device. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 7 A dual-shaft shredder for a waste refrigerator shredding line includes a device body 1 and a shredding box 2. The shredding box 2 is mounted on the device body 1. Toothed rollers 3 are symmetrically arranged inside the shredding box 2. Drive motors 4 are symmetrically arranged on the device body 1, and the output end of the drive motors 4 is connected to the input end of the toothed rollers 3. A feed hopper 5 is installed above the shredding box 2, and a discharge hopper 6 is installed below the shredding box 2. The toothed rollers 3 include a front roller and a rear roller, which are parallel to each other and rotate alternately. Blades embedded in their cutter discs shred the refrigerator body to a suitable size. The blades of the dual-shaft shredder adopt an alternating, interlocking layout, allowing the material to be cut and shredded simultaneously in both the transverse and longitudinal directions. Two reducers are also installed on the device body 1, one on each side of the shredding box 2, for controlling the drive motors. The operating speed of the motor 4 is controlled by the following: When the twin-shaft shredder is working, the pre-treated refrigerator body is first conveyed by the feeder to the top of the feeder, and then falls into the feed hopper 5 of the twin-shaft shredder. From the feed hopper 5, it enters the shredding box 2, where the refrigerator body is shredded by the staggered rotating toothed rollers 3. After the material is shredded, it falls through the discharge hopper 6 and is transported away by the belt conveyor. However, because the toothed rollers 3 have multiple sets of grooves on their surface, the two sets of toothed rollers 3 mesh with each other through the grooves to crush large materials. Therefore, it is inevitable that some broken fragments will get stuck in the grooves during the operation of the toothed rollers 3. This requires stopping the machine and manually cleaning the fragments on the toothed rollers 3 to avoid excessive accumulation of fragments affecting the working effect of the shredder. Frequent shutdowns seriously affect the overall production efficiency of the twin-shaft shredder.

[0026] The inner wall of the shredding box 2 is symmetrically equipped with support frames 7, which are located below the toothed roller 3. A cleaning component is installed on the support frame 7 to clean the fragments adhering to the toothed roller 3. A pressing mechanism is installed on one side of the shredding box 2 to push material into the toothed roller 3 for shredding. The cleaning component includes a mounting block 8, a mounting groove 9, a cleaning rod 10, a hook 11, and an elastic element 12. The mounting block 8 is fixedly installed at one end of the support frame 7. Multiple mounting grooves are provided on the mounting block 8. The cleaning rod 10 is movably installed in the mounting groove 9, with one end of the cleaning rod 10 positioned in a groove on the surface of the toothed roller 3. The hook 11 is located at the top of the cleaning rod 10 and contacts the surface of the toothed roller 3. The elastic element 12 is compressed and positioned in the middle of the mounting groove 9 and the cleaning rod 10. The mounting block 8 has a sliding structure. When cleaning fragments stuck in the groove of the toothed roller 3, the cleaning component facilitates the removal of fragments stuck in the groove. The fragments in the trough are cleaned. When the toothed roller 3 rotates, if any material fragments are stuck in the slot 14 of the toothed roller 3, the fragments will come into contact with the hook 11 as the toothed roller 3 rotates. Due to the inclined design of the cleaning rod 10, the fragments will be subjected to the oblique force of the hook 11 when they come into contact with the hook 11, and will be hooked by the hook 11 and gradually cleaned off the toothed roller 3. At the same time, when the hook 11 cleans the fragments on the toothed roller 3, the elastic element 12 will adaptively adjust the force of the hook on the fragments according to the size and shape of the fragments and the rotation of the toothed roller 3, so as to avoid the hook 11 from rigidly colliding with the toothed roller 3 or other parts and causing damage. The fragments hooked off by the hook 11 will slide back down to the discharge hopper 6 through the arc of the baffle 13 and be discharged through the discharge hopper 6. There is no need to frequently stop the machine to clean the fragments stuck on the toothed roller 3. This maintains the good crushing state of the toothed roller 3 and improves the continuous operation time and overall production efficiency of the twin-shaft shredder for processing waste refrigerators.

[0027] Please see Figure 3 The landslide structure includes a baffle 13 and a slot 14. The baffle 13 is fixedly installed on the mounting block 8, and the baffle 13 is designed to be inclined to follow the angle of the cleaning rod 10. The slot 14 is set at one end of the baffle 13, and multiple slots are provided. The cleaning rod 10 is engaged in the slot 14. The baffle 13 installed at an inclination allows the debris hooked by the hook 11 to slide smoothly into the discharge hopper 6, avoiding the accumulation of debris on the cleaning rod 10.

[0028] Please see Figure 6 and Figure 7The pressing mechanism includes a mounting shaft 15, a connecting rod slider 16, a pressing frame 17, a pressing plate 18, and a hydraulic rod 19. The mounting shaft 15 is fixedly mounted on the shredding box 2. The connecting rod slider 16 is movably mounted on the mounting shaft 15, and multiple connecting rod sliders 16 are provided. The pressing frame 17 is movably mounted on the connecting rod slider 16, and the pressing plate 18 is fixedly mounted on the pressing frame 17. The pressing plate 18 is designed as a semi-circular shape and is located above the toothed roller 3. When the material is pushed smoothly into the toothed roller 3, the pressing mechanism can push the material smoothly into the toothed roller 3. First, the hydraulic rod 19 is started. The pressure rod 19 reciprocates by extending and retracting. The reciprocating extension and retraction of the hydraulic rod 19 drives the pressure frame 17 to slide on the mounting shaft 15 via the connecting rod slider 16. When the pressure frame 17 moves up and down, it simultaneously drives the pressure plate 18 to make regular back-and-forth movements, thereby pushing the refrigerator body into the shredding box 2. Inside the shredding box 2, two parallel toothed rollers 3 rotate alternately, and the blades embedded on their cutter discs shred the refrigerator body to a suitable size, ensuring that the material continuously and evenly enters the shredding area, avoiding equipment idling or overload caused by unstable material conveying, and enabling the dual-shaft shredder to operate continuously and efficiently.

[0029] Please see Figure 1 A concentration sensor 20 and a flame sensor 21 are installed on both sides of the feed hopper 5. A spray device 22 is installed on the shredding box 2. The waste refrigerator being processed may contain some flammable impurities (such as residual oil stains) or other external factors. When the material accumulated in the feed hopper 5 is squeezed and rubbed, it may generate a source of fire and cause a fire. The concentration sensor 20 is used to detect the dust concentration around the equipment. If the dust concentration is too high, a signal will be sent, and the dust will be treated by the processing device to avoid the generation of a large amount of dust. At the same time, the flame sensor 21 is used to detect the flame and send a signal. The spray device 22 will immediately spray water to extinguish the fire.

[0030] The working principle involves a cleaning component that facilitates the removal of debris stuck in the grooves of the toothed roller 3. When the toothed roller 3 rotates, if material debris is stuck in the slot 14, it will come into contact with the hook 11 as the roller rotates. Due to the inclined design of the cleaning rod 10, the debris is subjected to an oblique force from the hook 11 upon contact, thus being hooked and gradually removed from the toothed roller 3. Simultaneously, while the hook 11 is cleaning the debris from the toothed roller 3, the elastic element 12 adaptively adjusts the force exerted by the hook on the debris based on factors such as the size and shape of the debris and the rotation of the toothed roller 3, preventing rigid collisions between the hook 11 and the toothed roller 3 or other components that could cause damage. The debris hooked off by the hook 11 will slide back down through the curvature of the baffle 13 to the discharge hopper 6 and be discharged, eliminating the need for frequent stops. The machine cleans up the fragments stuck on the toothed roller 3, maintaining the good crushing state of the toothed roller 3 and improving the continuous operation time and overall production efficiency of the twin-shaft shredder for processing waste refrigerators. The material can be smoothly pushed into the toothed roller 3 by the installation of the pressing mechanism. First, the hydraulic rod 19 is started to extend and retract. The reciprocating extension and retraction of the hydraulic rod 19 will drive the pressing frame 17 to slide on the mounting shaft 15 through the connecting rod slider 16. When the pressing frame 17 moves up and down, it will simultaneously drive the pressing plate 18 to make regular back-and-forth movements, thereby pushing the refrigerator body into the shredding box 2. Inside the shredding box 2, the two parallel toothed rollers 3 rotate alternately, and the blades embedded on their cutter discs shred the refrigerator body to a suitable size, ensuring that the material continuously and evenly enters the shredding area, avoiding the equipment from running idle or overloaded due to unstable material conveying, so that the twin-shaft shredder can operate continuously and efficiently.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double shaft shredder for a scrap refrigerator breaking line, comprising a device body (1) and a shredding tank (2), characterized in that: The shredding box (2) is installed on the device body (1). Toothed rollers (3) are symmetrically arranged inside the shredding box (2). A drive motor (4) is symmetrically arranged on the device body (1), and the output end of the drive motor (4) is connected to the input end of the toothed roller (3). The inner wall of the shredding box (2) is symmetrically equipped with support frames (7), and the support frames (7) are located below the toothed roller (3). The support frames (7) are equipped with cleaning components to clean the fragments adhering to the toothed roller (3). A pressing mechanism is provided on one side of the shredding box (2) to push the material into the toothed roller (3) for shredding.

2. The dual-shaft shredder for a waste refrigerator shredding line according to claim 1, characterized in that: The cleaning assembly includes a mounting block (8), a mounting groove (9), a cleaning rod (10), a hook (11), and an elastic element (12). The mounting block (8) is fixedly installed on one end of the support frame (7). The mounting groove (9) is provided on the mounting block (8), and there are multiple mounting grooves (9). The cleaning rod (10) is movably installed in the mounting groove (9), and one end of the cleaning rod (10) is located in the groove on the surface of the toothed roller (3). The hook (11) is located at the top of the cleaning rod (10) and contacts the surface of the toothed roller (3). The elastic element (12) is compressed and located in the middle part between the mounting groove (9) and the cleaning rod (10). The mounting block (8) is provided with a slope structure.

3. A dual-shaft shredder for a waste refrigerator shredding line according to claim 2, characterized in that: The landslide structure includes a baffle (13) and a slot (14). The baffle (13) is fixedly installed on the mounting block (8), and the baffle (13) is designed to be inclined to follow the angle of the cleaning rod (10). The slot (14) is set at one end of the baffle (13), and multiple slots (14) are provided. The cleaning rod (10) is engaged in the slot (14).

4. A dual-shaft shredder for a waste refrigerator shredding line according to claim 1, characterized in that: The pressing mechanism includes a mounting shaft (15), a connecting rod slider (16), a pressing frame (17), a pressing plate (18), and a hydraulic rod (19). The mounting shaft (15) is fixedly mounted on the shredding box (2). The connecting rod slider (16) is movably mounted on the mounting shaft (15), and multiple connecting rod sliders (16) are provided. The pressing frame (17) is movably mounted on the connecting rod slider (16), and the pressing plate (18) is fixedly mounted on the pressing frame (17).

5. A dual-shaft shredder for a waste refrigerator shredding line according to claim 4, characterized in that: The pressure plate (18) is designed to be semi-arc-shaped and is located above the toothed roller (3).

6. A dual-shaft shredder for a waste refrigerator shredding line according to claim 1, characterized in that: A feed hopper (5) is installed above the shredder (2), and a discharge hopper (6) is installed below the shredder (2).

7. A dual-shaft shredder for a waste refrigerator shredding line according to claim 6, characterized in that: A concentration sensor (20) and a flame sensor (21) are respectively installed on both sides of the feed hopper (5), and a spray device (22) is provided on the shredding box (2).

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