Low-speed crusher for plastics

Abstract

The utility model discloses a low-speed crusher for plastics, which belongs to the technical field of plastic crushing equipment and comprises a crusher body, a dust suppression box is fixed at the top of the crusher body, a moving plate is slidably connected to the side wall of the dust suppression box, a handle is welded to the end of the moving plate, and a sliding strip convenient to move is further welded to the side wall of the moving plate. The side wall of the sliding strip is slidably connected with a moving groove formed in the inner wall of the dust suppression box, the inner wall of the moving plate is movably connected with two dust filtering plates, the bottoms of the dust filtering plates are slidably connected with a cleaning plate, the fixed portion of the cleaning plate is connected with a long plate, the end of the long plate is welded to the side wall of a sliding block, and the sliding block is slidably connected with a round rod. The end of the round rod is fixed to the inner wall of the movable plate. Plastic particles mixed in air can be filtered, the stability of the device can be kept by regularly cleaning the dust filtering plate, the harm to the respiratory tract of a worker is reduced, and the use safety of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic crushing equipment, and in particular a low-speed crusher for plastics. Background Technology

[0002] Plastic crushers, also known as plastic pulverizers, are used for the recycling and processing of various plastics and rubbers. Existing plastic recycling crushers often employ screening devices to separate the crushed particles for further processing. However, they cannot suppress the dust generated during plastic crushing, resulting in a large amount of plastic particles filling the air around the equipment, which can adversely affect the health of workers.

[0003] A search revealed a Chinese patent document (authorization announcement number CN216267054U) for a crusher used in plastic recycling. The crusher includes a crushing cylinder and a crushing device. Several scrapers in a circumferential array are rotatably connected to the inner wall of the crushing cylinder, and a pair of fixing rings are fixedly connected to both ends of each scraper. This device addresses the problem of existing equipment not being able to completely crush plastics by installing a screen plate on the inner wall of the crusher and further crushing unscreened plastic particles. However, this device still has drawbacks: it cannot handle the dust generated during the crushing of recycled plastics, which can easily lead to a large amount of plastic particles in the surrounding air, posing a health hazard to workers and reducing the safety of the device. Utility Model Content

[0004] The purpose of this invention is to provide a low-speed crusher for plastics to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-speed crusher for plastics, comprising a crusher body for low-speed processing of recycled plastics, a dust suppression box fixed to the top of the crusher body, a movable plate slidably connected to the side wall of the dust suppression box, a handle for easy pulling welded to the end of the movable plate, a sliding strip for easy movement welded to the side wall of the movable plate, the side wall of the sliding strip slidably connected to a movable groove provided on the inner wall of the dust suppression box, two dust filter plates with different aperture sizes movably connected to the inner wall of the movable plate, a cleaning plate slidably connected to the bottom of the dust filter plates, a long plate connected to the fixed part of the cleaning plate, the end of the long plate welded to the side wall of the slider, a round rod slidably connected to the slider, the end of the round rod fixed to the inner wall of the movable plate.

[0006] As a preferred embodiment, the top of the dust suppression box is equipped with two detachable fans, and symmetrically arranged straight rods are movably connected to both sides of the fans.

[0007] As a preferred embodiment, a connecting plate is welded to the top of the straight rod, and a connecting hole is provided on the top of the connecting plate. A connecting rod is slidably connected to the connecting hole, and the side wall of the straight rod is slidably connected to the inner wall of the dust suppression box.

[0008] As a preferred embodiment, the inner wall of the connecting hole is provided with two symmetrical slide rails, and the inner wall of the slide rails is slidably connected with a fixing block welded to the end of the connecting rod. The fixing block is rotatably connected to the movable groove set inside the dust suppression box, and the end of the connecting rod is movably connected to the inner wall of the circular hole.

[0009] As a preferred embodiment, a circular hole is provided on the top of the movable plate, and a dust filter plate is provided at the bottom of the circular hole and movably connected thereto. The dust filter plates are connected to each other by a column.

[0010] As a preferred embodiment, the side wall of the movable plate is provided with two parallel sliding grooves, the inner wall of the sliding grooves is slidably connected to a movable block, the side wall of the movable block is slidably connected to the side wall of the movable plate, and the end of the movable block is fixed to the slider by a welded short plate.

[0011] As a preferred embodiment, the inner wall of the movable plate is provided with several connection slots for easy connection, and each connection slot has a connection component installed on its inner wall, with the end of the connection component connected to the bottom of the dust filter plate.

[0012] As a preferred embodiment, the connection component includes:

[0013] The movable column is connected to the fixed lug welded to the end of the dust filter plate;

[0014] A fixed column, the end of which is fixed to the inner wall of the connecting groove, and the inner wall of the fixed column is slidably connected to the side wall of the movable column.

[0015] A circular plate, one end of which is fixed to the other end of the movable column, and the side wall of the circular plate is slidably connected to the fixed column;

[0016] A spring with a damper has one end connected to the inner wall of a fixed column and the other end fixed to the bottom of a circular plate.

[0017] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0018] This low-speed crusher for plastics has a movable plate inside the dust suppression box. Inside the movable plate are two parallel filter plates with different mesh sizes. Filter screens are installed inside the filter plates. The bottom of the dust suppression box is connected to the top of the crusher body through a channel, allowing air containing plastic particles generated during the operation of the crusher body to enter the dust suppression box through the channel. A fan located at the top of the dust suppression box accelerates the filtration and circulation of plastic particles in the air, improving the processing efficiency of the device.

[0019] This low-speed crusher for plastics has two slid grooves at the end of the moving plate. The inner wall of the slid groove is slidably connected to a moving block. The moving block is connected to a slider set on the side wall of the round rod. The slider is driven to move by the connecting plate, which in turn drives the connected long plate to move, so that the connected cleaning plate slides with the filter plate, thus cleaning the dust that clogs the filter screen.

[0020] With the straight rod and connecting plate set on the top of the dust suppression box, the connecting components complete the vibration of the dust filter plate inside the moving box, accelerate the cleaning of the mesh, further improve the service life of the device, reduce the number of plastic particles in the air around the crusher body, avoid affecting the respiratory tract of workers, and improve the safety of the device.

[0021] This device solves the problem of filtering air containing plastic particles when the existing equipment cannot process and recycle plastics from the crusher body, thus improving the safety of the device. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a low-speed crusher for plastics according to this utility model;

[0024] Figure 2 This is a schematic diagram of the dust suppression box of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the movable plate of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the back of the movable plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the movable plate of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the cleaning plate connection of this utility model;

[0029] Figure 7 This is a structural schematic diagram of the straight rod and connecting plate of this utility model;

[0030] Figure 8 This utility model Figure 5 Enlarged view of the structure at point A in the middle;

[0031] Figure 9 This is a schematic diagram of the internal structure of the connecting component of this utility model;

[0032] Figure 10 This is a schematic diagram of the connecting hole and connecting rod of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] In the diagram: 1. Crusher body; 2. Dust suppression box; 3. Fan; 4. Straight rod; 5. Moving plate; 6. Handle; 7. Connecting plate; 8. Moving block; 9. Slide groove; 10. Round hole; 11. Slide bar; 12. Dust filter plate; 13. Round rod; 14. Cleaning plate; 15. Long plate; 16. Connecting hole; 161. Slide rail; 17. Connecting rod; 171. Fixing block; 18. Connecting assembly; 181. Moving column; 182. Fixing column; 183. Spring; 184. Round plate; 19. Connecting groove. Detailed Implementation

[0035] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0036] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0037] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0038] A low-speed crusher for plastics, such as Figures 1 to 10 As shown,

[0039] include:

[0040] The crusher body 1 is a low-speed crusher used for recycling plastics. A dust suppression box 2 is fixed on the top of the crusher body 1. A movable plate 5 is slidably connected to the side wall of the dust suppression box 2. A handle 6 is welded to the end of the movable plate 5 to facilitate pulling. The handle 6 makes it easy to move the movable plate 5 inside the dust suppression box 2.

[0041] The side wall of the movable plate 5 is also welded with a sliding strip 11 for easy movement. The side wall of the sliding strip 11 is slidably connected to the moving groove provided in the inner wall of the dust suppression box 2. The setting of the connecting groove 19 enables the movable plate 5 to remain stable when it moves inside the dust suppression box 2.

[0042] The inner wall of the movable plate 5 is movably connected to two dust filter plates 12 with different pore sizes. The dust filter plates 12 are equipped with filter screens. The inner diameter of the mesh of the two filter screens is different, and the filter screen with smaller pore size is located on the top of the movable plate 5, close to the side of the fan 3 connected to the top of the dust suppression box 2. By setting two filter screens with different pore sizes, the dust suppression box 2 can accelerate the filtration speed of the air when it is working, and the fan 3 can also accelerate the processing efficiency, making it easy to use.

[0043] A cleaning plate 14 is slidably connected to the bottom of the dust filter plate 12. A long plate 15 is connected to the fixed part of the cleaning plate 14. The end of the long plate 15 is welded to the side wall of the slider. A round rod 13 is slidably connected to the slider. The end of the round rod 13 is fixed to the inner wall of the moving plate 5.

[0044] A parallel groove 9 is provided on one side of the movable plate 5. A movable block 8 is slidably connected to the inner wall of the groove 9. The movable block 8 is connected to the slider through a welded short plate. The movable block 8 is controlled to move on the surface of the movable plate 5, driving the connected slider to move, thereby adjusting the position of the long plate 15. This facilitates the cleaning of the filter screen installed inside the dust filter plate 12, reduces mesh blockage, and improves air treatment efficiency.

[0045] The surface of the cleaning plate 14 is provided with cleaning strips with a certain degree of hardness, similar to the bristles of existing bamboo shoe brushes, which can provide a better cleaning effect on the dust clogging the mesh and make it movable, so as to facilitate subsequent operations.

[0046] Two straight rods 4 are symmetrically arranged relative to the fan 3 on the top of the dust suppression box 2. The side walls of the straight rods 4 are slidably connected to the inner wall of the dust suppression box 2. A connecting plate 7 is welded to the top of the straight rods 4. The top of the connecting plate 7 is provided with a connecting hole 16 corresponding to the straight rods 4. Two axisymmetric slide rails 161 are provided inside the connecting hole 16. The slide rails 161 pass through the straight rods 4 and communicate with the inside of the dust suppression box 2. A connecting rod 17 and a fixing block 171 provided on the side wall of the end of the connecting rod 17 are slidably connected to the connecting hole 16 and the slide rails 161.

[0047] An arc-shaped plate is welded to the end of the connecting rod 17. Twisting the arc-shaped plate inside the connecting hole 16 causes the connecting rod 17 to rotate, which in turn drives the fixed block 171 to rotate inside the connecting rod 17 and inside the dust suppression box 2, thus fixing the position of the connecting rod 17 and facilitating operation.

[0048] The movable groove inside the dust suppression box 2 and the straight rod 4 is semi-circular and fits with the fixed block 171. After the rotation adjustment of the connecting rod 17 is completed, the fixed block 171 can be fixed and limited through the movable groove, so that the connecting rod 17 can be kept fixed when the connecting plate 7 is pressed to move.

[0049] The top of the movable plate 5 is provided with a round hole 10, which corresponds to the connecting hole 16. The bottom of the round hole 10 is provided with a dust filter plate 12. The top of the dust filter plate 12 abuts against the end of the connecting rod 17 that passes through the round hole 10, so that the connection between the fixed block 171 and the movable groove can connect the connecting rod 17 to the dust filter plate 12. Even if the movable plate 5 needs to be disassembled, the movable plate 5 can be pulled out and cleaned by pulling the connecting rod 17, which improves the ease of use of the device.

[0050] A plurality of equally spaced connecting grooves 19 are provided on the inner wall of the movable plate 5. A connecting assembly 18 is installed on the inner wall of the connecting groove 19. The connecting assembly 18 includes:

[0051] The movable column 181 has its end connected to the fixed ear welded to the end of the dust filter plate 12. The fixed ear is slidably connected to the inner wall of the connecting groove 19. The connecting groove 19 allows the dust filter plate 12 to slide on the inner wall of the movable plate 5.

[0052] The fixed column 182 is fixed at its end to the inner wall of the connecting groove 19. The inner wall of the fixed column 182 is slidably connected to the side wall of the movable column 181. Under normal conditions without force, the combined movable column 181 and fixed column 182 will not abut against the inner top wall of the connecting groove 19.

[0053] The circular plate 184 is fixed at one end to the other end of the movable column 181. The side wall of the circular plate 184 is slidably connected to the fixed column 182. By setting the circular plate 184, the movable column 181 can move more stably inside the fixed column 182.

[0054] A spring 183 with a damper slides on the side wall of the fixed post 182. The friction at the connection is also a kind of damping. The end of the spring 183 is connected to the inner wall of the fixed post 182, and the other end is fixed to the bottom of the circular plate 184.

[0055] Furthermore, since the dust filter plates 12 are connected by columns, and the ends of the dust filter plates 12 are connected to the moving part of the connecting assembly 18, the connecting rod 17 and the fixing block 171 can be used to fix the connecting rod 17 when it is connected to the top of the dust filter plate 12, and the fixing block 171 is connected to the movable groove. When the connecting plate 7 is manually pressed down, the connecting rod 4 and the connecting rod 17 are moved, compressing the connecting assembly 18 and causing the dust filter plate 12 to move. This causes the cleaning strips fixed on the surface of the cleaning plate 14 to slide against the inner diameter of the mesh, further improving the cleaning of the mesh aperture and enhancing the cleaning effect.

[0056] On the other side of the movable plate 5 and on the other side of the dust suppression box 2, there are easy-to-remove horizontal plates. The horizontal plates are connected to the fixed parts of the dust suppression box 2 and the movable plate 5 by screws. The inside of the dust suppression box 2 and the movable plate 5 are cleaned regularly to maintain the normal operation of the equipment and improve the service life of the device.

[0057] The crusher body 1 and the blower 3 are both conventional instruments. Their working principles, dimensions and models are not related to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. In order to facilitate the inspection, maintenance and parts replacement of the device, the parts inside a single device are usually from the same manufacturer and of the same model, function and batch. The power supply is also common knowledge in the art. In addition, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail in this utility model.

[0058] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology.

[0059] Working principle

[0060] When using this low-speed crusher for plastics, first connect the moving plate 5 to the dust suppression box 2, start the low-speed crusher body 1, and transport the air mixed with plastic particles to the inside of the dust suppression box 2 through the channel set on the top of the crusher body 1.

[0061] At this time, the plastic particles are filtered by the movable plate 5 and the filter plate 12 installed inside the dust suppression box 2, and the fan 3 is started to rotate simultaneously to accelerate the air flow rate inside the dust suppression box 2.

[0062] Then, the movement of the moving block 8 is controlled periodically, which drives the connected slider and the long plate 15 welded to the slider to move, so that the connected cleaning plate 14 cleans the filter screen installed inside the dust filter plate 12. It can also be adjusted by controlling the connection between the connecting rod 17 and the connecting hole 16. Under the action of the arc plate and the fixing block 171, the connection between the connecting rod 17 and the round hole 10 through the connecting hole 16 is adjusted so that the end of the connecting rod 17 abuts against the top of the dust filter plate 12. The connecting plate 7 is moved, which drives the straight rod 4 to slide with the dust suppression box 2, so that the dust filter plate 12 vibrates under the action of the connecting assembly 18. With the help of the cleaning strip set on the top of the cleaning plate 14, the filter screen mesh is further cleaned. It can be used repeatedly.

[0063] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-speed crusher for plastics, comprising a crusher body (1) for low-speed processing of recycled plastics, characterized in that: The top of the crusher body (1) is fixed with a dust suppression box (2). A movable plate (5) is slidably connected to the side wall of the dust suppression box (2). A handle (6) is welded to the end of the movable plate (5) to facilitate pulling. A sliding strip (11) is also welded to the side wall of the movable plate (5) to facilitate movement. The side wall of the sliding strip (11) is slidably connected to the movable groove set in the inner wall of the dust suppression box (2). Two dust filter plates (12) with different hole sizes are movably connected to the inner wall of the movable plate (5). A cleaning plate (14) is slidably connected to the bottom of the dust filter plate (12). A long plate (15) is connected to the fixed part of the cleaning plate (14). The end of the long plate (15) is welded to the side wall of the slider. A round rod (13) is slidably connected to the slider. The end of the round rod (13) is fixed to the inner wall of the movable plate (5).

2. A low-speed crusher for plastics according to claim 1, characterized in that: The dust suppression box (2) has two detachable fans (3) installed on its top, and the fans (3) are also movably connected to symmetrically arranged straight rods (4) on both sides.

3. A low-speed crusher for plastics according to claim 2, characterized in that: A connecting plate (7) is welded to the top of the straight rod (4), and a connecting hole (16) is provided on the top of the connecting plate (7). A connecting rod (17) is slidably connected to the connecting hole (16), and the side wall of the straight rod (4) is slidably connected to the inner wall of the dust suppression box (2).

4. A low-speed crusher for plastics according to claim 3, characterized in that: The inner wall of the connecting hole (16) is provided with two symmetrical slide rails (161). The inner wall of the slide rail (161) is slidably connected to a fixing block (171) welded to the end of the connecting rod (17). The fixing block (171) is rotatably connected to the movable groove set inside the dust suppression box (2), and the end of the connecting rod (17) is movably connected to the inner wall of the round hole (10).

5. A low-speed crusher for plastics according to claim 4, characterized in that: The circular hole (10) is located on the top of the movable plate (5), and the bottom of the circular hole (10) is provided with a dust filter plate (12) movably connected thereto. The dust filter plates (12) are connected to each other by a column.

6. A low-speed crusher for plastics according to claim 5, characterized in that: The side wall of the movable plate (5) is provided with two parallel sliding grooves (9). The inner wall of the sliding groove (9) is slidably connected to a movable block (8). The side wall of the movable block (8) is slidably connected to the side wall of the movable plate (5). The end of the movable block (8) is fixed to the slider by a welded short plate.

7. A low-speed crusher for plastics according to claim 6, characterized in that: The inner wall of the movable plate (5) is provided with several connecting grooves (19) for easy connection. Each connecting groove (19) has a connecting component (18) installed on its inner wall. The end of the connecting component (18) is connected to the bottom of the dust filter plate (12).

8. A low-speed crusher for plastics according to claim 7, characterized in that: The connection component (18) includes: The movable column (181) is connected to the fixed lug welded to the end of the dust filter plate (12); The fixed column (182) is fixed at its end to the inner wall of the connecting groove (19), and the inner wall of the fixed column (182) is slidably connected to the side wall of the movable column (181). The circular plate (184) is fixed at one end to the other end of the movable column (181), and the side wall of the circular plate (184) is slidably connected to the fixed column (182). A spring (183) with a damper is provided. One end of the spring (183) is connected to the inner wall of the fixed post (182), and the other end is fixed to the bottom of the circular plate (184).

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