A gnawing tooth type plastic crusher
The toothed plastic crusher solves the problem of needing to periodically disassemble the equipment to inspect the screen in existing plastic crushers by using a cross-distribution design of toothed plates and toothed crushing shafts, thus achieving automatic screening and simplified maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 晓马精密机械科技(阳春)有限公司
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-07
AI Technical Summary
Existing plastic crushers require periodic disassembly of the equipment casing to inspect, unclog, or replace the screen, resulting in time-consuming and labor-intensive maintenance work.
The toothed plastic crusher adopts a design that uses a cross-distribution of toothed plates and toothed crushing shafts to achieve automatic screening and crushing of plastics, avoiding screen clogging and simplifying the maintenance process.
It enables automatic screening during the plastic crushing process, reducing maintenance frequency and workload, and lowering equipment maintenance time and labor intensity.
Smart Images

Figure CN224465043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic crusher technology, specifically a toothed plastic crusher. Background Technology
[0002] Due to the widespread use of plastic products and the increasing awareness of environmental protection and resource conservation, the recycling and reuse of plastic products has become a focus. Plastic crushers can crush various plastic and rubber products, and the granular material produced can be directly used by extruders or injection molding machines, or it can be recycled through a granulator.
[0003] The existing plastic crushers have relatively simple crushing mechanisms, slow crushing efficiency, and require screening of the granular material produced by crushing through a screen. Over long-term use, the screen will inevitably become clogged or damaged. Operators need to regularly disassemble the equipment casing to inspect, unclog, or replace the screen, which makes the maintenance work time-consuming and labor-intensive. Therefore, a toothed plastic crusher is proposed to address the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a toothed plastic crusher to solve the problem that some existing plastic crushers require periodic disassembly of the equipment casing to inspect, unclog, or replace the screen.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A toothed plastic crusher includes a main frame, a feeding bin, a crushing bin, a feeding bin, and a crushing assembly. The crushing bin includes two side plates, two bottom plates are detachably connected between the two side plates, and two baffles are detachably connected between the two side plates. Mounting blocks are detachably connected to the opposing sides of the two baffles. A set of toothed plates that fit against the baffles are fixedly connected to the lower end of each mounting block. The crushing assembly includes a drive motor. A rotating shaft is fixedly connected to the left end of the drive motor's main shaft. A first sealing member, bolted to the rightmost end of the rotating shaft, is rotatably connected to the right side plate of the bin. A second sealing member, bolted to the leftmost end of the rotating shaft, is rotatably connected to the left side plate of the bin. Two main cutting blades and three toothed crushing shafts are sleeved on the outside of the rotating shaft, and the main cutting blades and toothed crushing shafts are distributed crosswise in the left-right direction. A controller is fixedly connected to the front of the drive motor.
[0007] Preferably, a feeding hopper is installed on the lower side of the main frame, a crushing hopper is installed on the upper side of the main frame, a feeding hopper is installed on the upper side of the crushing hopper, and a crushing component located in the crushing hopper is installed on the right side of the main frame.
[0008] Preferably, the main frame consists of a mounting frame and a set of universal locking wheels; the unloading bin consists of a receiving hopper and a suction pipe; the right end of the suction pipe of the unloading bin is fixedly connected to the left end face of the receiving hopper and the right end of the suction pipe of the unloading bin is connected to the receiving hopper; the loading bin consists of a feeding hopper and a bent guide bin with a viewing window; and the upper side of the drive motor and the lower side frame of the loading bin are detachably connected.
[0009] Preferably, the upper sides of the side plates of the silo body are detachably connected to the feeding silo, the lower sides of the bottom plate of the silo body are detachably connected to the main frame, the lower ends of the bottom plate of the silo body are aligned with the lower ends of the side plates of the silo body, the upper ends of the baffles are aligned with the upper ends of the side plates of the silo body, and the lowermost ends of the back sides of the two baffles are respectively attached to the opposite sides of the two bottom plates of the silo body.
[0010] Preferably, each group of the cutting plates has three cutting plates, and the three cutting plates in each group are evenly distributed in the left-right direction. The spacing between two adjacent cutting plates is the same as the thickness of the main cutting blade. The main cutting blade is located between two adjacent cutting plates, and the lower cutting teeth of the cutting plates and the outer cutting teeth of the cutting chip shaft are staggered.
[0011] Preferably, the cutting main blade and the toothed material scraping shaft are tightly fitted in the left-right direction, with the right end of the rightmost toothed material scraping shaft fitted with the first sealing member, and the left end of the leftmost toothed material scraping shaft fitted with the second sealing member.
[0012] Preferably, the cutting main blade and the toothed material crushing shaft are both provided with sliding groove holes at the middle position, and the rotating shaft is provided with protrusions on the outer side. The sliding groove holes of the cutting main blade and the toothed material crushing shaft are matched with the shape of the protrusions of the rotating shaft.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, the device, equipped with a hopper side plate, baffle plate, toothed plate, rotating shaft, main cutting blade, and toothed crushing shaft, allows the main cutting blade and toothed crushing shaft to rotate synchronously via the rotatable rotating shaft. The hopper side plate and baffle plate, in conjunction with the main cutting blade and toothed crushing shaft, block the plastic to be crushed. The main cutting blade, toothed crushing shaft, and toothed plate then cut and crush the plastic. Only plastic particles crushed to the required size can pass through the screening of the toothed crushing shaft. The recessed part of the outer edge of the toothed part is brought to the lower side of the cutting main blade and the toothed crushing shaft. The device can automatically screen the plastic particles produced by crushing through the cutting main blade, the toothed crushing shaft, and the toothed plate. Therefore, there is no need to inspect, unclog, or replace the screen. In addition, the cutting main blade, the toothed crushing shaft, and the toothed plate of the device have plastic crushing capabilities themselves, so there will be no blockage. This greatly reduces the maintenance frequency of the device. Furthermore, the crushing chamber of the device is easy to disassemble, making the maintenance work of the device more time-saving and labor-saving. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the installation structure of the crushing component of this utility model;
[0017] Figure 3 This is a cross-sectional view of the installation structure of the crushing component of this utility model;
[0018] Figure 4 This is a cross-sectional view of the crushing chamber structure of this utility model;
[0019] Figure 5 This is a cross-sectional view of the toothed material crusher mounting structure of this utility model;
[0020] Figure 6 This is a cross-sectional view of the crushing component structure of this utility model.
[0021] In the diagram: 1. Main frame; 2. Feeding bin; 3. Crushing bin; 31. Bin side plate; 32. Bin bottom plate; 33. Baffle plate; 34. Mounting block; 35. Gnawing plate; 4. Feeding bin; 5. Crushing assembly; 51. Drive motor; 52. Rotating shaft; 53. First sealing component; 54. Second sealing component; 55. Cutting main blade; 56. Gnawing crushing shaft; 57. Controller. Detailed Implementation
[0022] 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.
[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0025] Please see Figure 1-6 This utility model provides a technical solution:
[0026] A toothed plastic crusher includes a main frame 1, a feeding bin 2, a crushing bin 3, a feeding bin 4, and a crushing assembly 5. The crushing bin 3 includes two side plates 31, with two bottom plates 32 detachably connected between the side plates 31. Two baffle plates 33 are detachably connected between the side plates 31. Mounting blocks 34 are detachably connected to the opposing sides of each baffle plate 33. A set of toothed plates 35, which fit against the baffle plates 33, are fixedly connected to the lower end of each mounting block 34. The crushing assembly 5 includes a drive motor 51. A rotating shaft 52 is fixedly connected to the left end of the main shaft 51. A first sealing member 53, which is bolted to the rightmost end of the outer side of the rotating shaft 52, is rotatably connected to the right side plate 31 of the silo body. A second sealing member 54, which is bolted to the leftmost end of the outer side of the rotating shaft 52, is rotatably connected to the left side plate 31 of the silo body. Two cutting main blades 55 and three toothed crushing shafts 56 are sleeved on the outer side of the rotating shaft 52. The cutting main blades 55 and the toothed crushing shafts 56 are distributed crosswise in the left and right direction. A controller 57 is fixedly connected to the front side of the drive motor 51.
[0027] A feeding bin 2 is installed on the lower side of the main frame 1, a crushing bin 3 is installed on the upper side of the main frame 1, and a feeding bin 4 is installed on the upper side of the crushing bin 3. A crushing component 5 located in the crushing bin 3 is installed on the right side of the main frame 1. The main frame 1 consists of a mounting frame and a set of universal locking wheels. The feeding bin 2 consists of a receiving hopper and a suction pipe. The right end of the suction pipe of the feeding bin 2 is fixedly connected to the left end face of the receiving hopper, and the right end of the suction pipe of the feeding bin 2 communicates with the receiving hopper. The feeding bin 4 consists of a feeding hopper and a bent guide bin with a viewing window. The upper side of the drive motor 51 and the lower side frame of the feeding bin 4 are... The connection can be disassembled, allowing material to be fed through the feeding hopper 4 and collected through the unloading hopper 2. The upper sides of the hopper side plates 31 are detachably connected to the feeding hopper 4, and the lower sides of the hopper bottom plate 32 are detachably connected to the main frame 1. The lower ends of the hopper bottom plate 32 and the lower ends of the hopper side plates 31 are aligned, and the upper ends of the baffle plates 33 are aligned with the upper ends of the hopper side plates 31. The lowest points of the two baffle plates 33 on their opposite sides are respectively attached to the opposite sides of the two hopper bottom plates 32. The hopper side plates 31, hopper bottom plates 32, and baffle plates 33 can be used in conjunction with the first sealing component 53 and the second sealing component 54 to form a complete structure. The chamber has openings at both the top and bottom to block the plastic to be crushed. Each set of three toothed plates 35 is evenly distributed in the left-right direction. The spacing between adjacent toothed plates 35 is the same as the thickness of the main cutting blade 55. The main cutting blade 55 is located between adjacent toothed plates 35. The lower toothed ends of the toothed plates 35 and the outer toothed ends of the toothed crushing shaft 56 are staggered. The toothed plates 35 can work in conjunction with the toothed crushing shaft 56 to crush the plastic. The main cutting blade 55 and the toothed crushing shaft 56 are tightly fitted in the left-right direction. The right end of the toothed crushing shaft 56 on the side is fitted with the first sealing member 53, and the left end of the leftmost toothed crushing shaft 56 is fitted with the second sealing member 54. The plastic to be crushed can be crushed by rotating the main cutting blade 55 and the toothed crushing shaft 56. The middle position of the main cutting blade 55 and the toothed crushing shaft 56 is provided with sliding groove holes, and the outer side of the rotating shaft 52 is provided with protrusions. The sliding groove holes of the main cutting blade 55 and the toothed crushing shaft 56 are matched with the shape of the protrusions of the rotating shaft 52. The rotating shaft 52 can drive the main cutting blade 55 and the toothed crushing shaft 56 to rotate.
[0028] Workflow: Before use, place the main frame 1 in a suitable position and connect the power supply. The controller 57 and drive motor 51 of this device are electrically connected. The operating status of the drive motor 51 can be adjusted by manually operating the controller 57. This device needs to be used in conjunction with a negative pressure material receiving device. All of the above are existing technologies. When using this device, the operator first uses the controller 57 to make the drive motor 51 rotate at a low speed. The low-speed drive motor 51 has low power, low noise, and high torque. The drive motor 51 can drive the rotating shaft 52 to rotate, which in turn drives the cutting main blade 55 and the toothed crushing shaft 56 located between the first sealing member 53 and the second sealing member 54 to rotate synchronously. Then, the operator feeds the material from above the feeding bin 4. After the crushed plastic enters the crushing bin 3 from the feeding bin 4, The side plate 31, bottom plate 32, and baffle plate 33 of the hopper can work with the first sealing member 53 and the second sealing member 54 to form a hopper with openings at both the top and bottom. The rotating cutting blade 55 can perform preliminary cutting of the plastic, cutting larger pieces into smaller pieces. The rotating toothed crushing shaft 56 can further crush the plastic into granules through its outer teeth in conjunction with the lower teeth of the toothed plate 35. The toothed plate 35, fixed by the mounting block 34, can block the toothed gaps in the left and right directions of the toothed crushing shaft 56, preventing the plastic from falling through the toothed gaps in the left and right directions of the toothed crushing shaft 56. Therefore, the plastic on the upper side of the cutting blade 55 and the toothed crushing shaft 56 can only pass through the recessed part of the annular outer teeth of the toothed crushing shaft 56 after it has been crushed into sufficiently small particles. The material is brought to the underside of the cutting blade 55 and the toothed crushing shaft 56, and then falls into the feeding bin 2 fixed by the main frame 1. The negative pressure receiving device can be composed of an exhaust fan and a receiving box with a filter baffle through existing technology. The negative pressure receiving device can create a negative pressure in the receiving box through the exhaust fan, so that the plastic particles in the feeding bin 2 can be sucked into the receiving box of the negative pressure receiving device. At the same time, the filter baffle on the receiving box prevents the plastic particles from being sucked into the exhaust fan. The crushing bin 3 of the device is located between the feeding bin 2 and the feeding bin 4. If the device needs to be inspected or maintained, the staff only needs to remove the baffle 33 from the side plate 31 of the bin body to inspect the cutting blade 55 and the toothed crushing shaft 56 located inside the crushing bin 3 without disassembling other parts. This method is relatively simple and quick.The device can drive the main cutting blade 55 and the toothed crushing shaft 56 to rotate synchronously via a rotatable rotating shaft 52. The side plate 31 and the baffle plate 33 of the bin body cooperate with the main cutting blade 55 and the toothed crushing shaft 56 to block the plastic to be crushed. The main cutting blade 55, the toothed crushing shaft 56, and the toothed plate 35 can cut and crush the plastic to be crushed. Only plastic particles that have been crushed to the required particle size can pass through the screening of the toothed crushing shaft 56. They are carried to the main cutting blade by the concave part of the annular outer tooth of the toothed crushing shaft 56. Located below the cutting blade 55 and the toothed crushing shaft 56, the device automatically screens the plastic particles produced by crushing through the cutting main blade 55, the toothed crushing shaft 56, and the toothed plate 35. Therefore, there is no need to inspect, unclog, or replace the screen. Furthermore, the cutting main blade 55, the toothed crushing shaft 56, and the toothed plate 35 themselves have plastic crushing capabilities, so clogging will not occur. This greatly reduces the maintenance frequency of the device. Additionally, the crushing chamber 3 is easy to disassemble, making maintenance work more time-saving and labor-saving.
[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.
[0030] 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 toothed plastic crusher, comprising a main frame (1), a feeding bin (2), a crushing bin (3), a feeding bin (4), and a crushing assembly (5), characterized in that: The crushing chamber (3) includes two chamber side plates (31), two chamber bottom plates (32) are detachably connected between the two chamber side plates (31), two baffle plates (33) are detachably connected between the two chamber side plates (31), and mounting blocks (34) are detachably connected to the opposing sides of the two baffle plates (33). A set of toothed plates (35) that fit against the baffle plates (33) are fixedly connected to the lower end of each mounting block (34). The crushing assembly (5) includes a drive motor (51), and a rotating shaft (52) is fixedly connected to the left end of the main shaft of the drive motor (51). The rightmost end of the outer side of the rotating shaft (52) is rotatably connected to a first sealing member (53) bolted to the side plate (31) of the silo located on the right side. The leftmost end of the outer side of the rotating shaft (52) is rotatably connected to a second sealing member (54) bolted to the side plate (31) of the silo located on the left side. Two cutting blades (55) and three toothed crushing shafts (56) are sleeved on the outer side of the rotating shaft (52). The cutting blades (55) and the toothed crushing shafts (56) are distributed crosswise in the left and right directions. A controller (57) is fixedly connected to the front side of the drive motor (51).
2. The toothed plastic crusher according to claim 1, characterized in that: A feeding bin (2) is installed on the lower side of the main frame (1), a crushing bin (3) is installed on the upper side of the main frame (1), a feeding bin (4) is installed on the upper side of the crushing bin (3), and a crushing component (5) located in the crushing bin (3) is installed on the right side of the main frame (1).
3. The toothed plastic crusher according to claim 1, characterized in that: The main frame (1) consists of a mounting frame and a set of universal locking wheels. The feeding bin (2) consists of a receiving hopper and a suction pipe. The right end of the suction pipe of the feeding bin (2) is fixedly connected to the left end face of the receiving hopper, and the right end of the suction pipe of the feeding bin (2) is connected to the receiving hopper. The feeding bin (4) consists of a feeding hopper and a bent guide bin with a viewing window. The upper side of the drive motor (51) and the lower side frame of the feeding bin (4) are detachably connected.
4. The toothed plastic crusher according to claim 1, characterized in that: The upper side of the side plate (31) of the silo body is detachably connected to the feeding silo (4), and the lower side of the bottom plate (32) of the silo body is detachably connected to the main frame (1). The lower end of the bottom plate (32) of the silo body is aligned with the lower end of the side plate (31), and the upper end of the baffle plate (33) is aligned with the upper end of the side plate (31). The lowermost ends of the back side of the two baffle plates (33) are respectively attached to the opposite sides of the two bottom plates (32).
5. A toothed plastic crusher according to claim 1, characterized in that: Each group of the toothed plates (35) has three, and the three toothed plates (35) in each group are evenly distributed in the left and right direction. The spacing between two adjacent toothed plates (35) is the same as the thickness of the cutting blade (55). The cutting blade (55) is located between two adjacent toothed plates (35). The lower toothed end of the toothed plate (35) and the outer toothed end of the toothed crushing shaft (56) are staggered.
6. A toothed plastic crusher according to claim 1, characterized in that: The cutting blade (55) and the toothed material crushing shaft (56) are closely fitted in the left-right direction. The right end of the rightmost toothed material crushing shaft (56) is fitted with the first sealing member (53), and the left end of the leftmost toothed material crushing shaft (56) is fitted with the second sealing member (54).
7. A toothed plastic crusher according to claim 1, characterized in that: The cutting blade (55) and the toothed material crushing shaft (56) are both provided with sliding groove holes in the middle position, and the rotating shaft (52) is provided with protrusions on the outside. The sliding groove holes of the cutting blade (55) and the toothed material crushing shaft (56) are matched with the shape of the protrusions of the rotating shaft (52).