Plastic high-efficiency pulverizer

Abstract

The utility model relates to a kind of plastic high-efficiency pulverizer, comprising: rack;Pulverizing component is installed on rack;Pulverizing component includes fixed box, feeding hopper, two transmission shafts and multiple mincing cutterheads;And detachably installed in the quick-release screen of the outlet end inside pulverizing component;Quick-release screen includes two net plates, end plate and side plate.The above-mentioned plastic high-efficiency pulverizer is simple in structure, convenient to use, accurately fitted and positioned by the first clamping block and the first recess, the second clamping block and the second recess, and is screwed into the internal thread hole after the through hole is penetrated by bolt, so that the quick-release screen can be fixed and installed inside the outlet end of the fixed box, the additional vibrating screen equipment is saved, the structural integration is greatly improved, the occupied space is reduced, and it is beneficial to enterprise production and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of plastic crushing technology, and in particular to a high-efficiency plastic crusher. Background Technology

[0002] Plastic crushers are key equipment in the plastic recycling and processing industry. Their main function is to crush block, strip, or sheet-shaped plastic waste and scraps into small, uniform particles to facilitate subsequent melting, granulation, or direct injection molding.

[0003] In the existing production process, a separate vibrating screen needs to be installed at the discharge end of the plastic crusher. The crushed plastic particles are fed into the vibrating screen for screening. Particles that meet the size requirements are discharged through the screen, while larger particles that do not meet the requirements need to be sent back to the crusher for secondary crushing via a return device. This separate crushing and screening structure has a very low degree of integration, requiring two independent devices—the crusher and the vibrating screen—as well as a conveyor system connecting them. This not only occupies valuable production workshop space but also increases the complexity of the entire production line layout, which is particularly disadvantageous for small and medium-sized enterprises or compact production lines with limited space. Utility Model Content

[0004] Based on this, the present invention provides a high-efficiency plastic crusher with a simple structure and convenient use. By precisely fitting and positioning the first locking block with the first recess and the second locking block with the second recess, and by screwing the bolts through the through holes and then screwing them into the internal threaded holes, the quick-release screen can be fixedly installed inside the outlet end of the fixed box. This eliminates the need for additional vibrating screen equipment, greatly improves the structural integration, reduces the space occupied, and is beneficial to enterprise production and maintenance.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted: A high-efficiency plastic shredder, comprising: frame; A crushing assembly mounted on a frame; the crushing assembly includes a fixed box mounted on the top of the frame, a feeding hopper connected to the inlet end of the fixed box, two drive shafts passing through and connecting the fixed box, and a plurality of shredding discs evenly spaced along the axial direction of the drive shafts; a first recess is evenly spaced on one end face of the outlet end of the fixed box, and a second recess is evenly spaced on the other end face of the outlet end of the fixed box; internal threaded holes are respectively spaced on the inner walls of opposite sides of the outlet end of the fixed box; and A quick-release screen is detachably installed inside the outlet end of the crushing component. The quick-release screen includes two screen plates arranged side by side, an end plate perpendicularly connected to the opposite ends of the two screen plates, and a side plate perpendicularly connected to the opposite sides of the two screen plates. A first locking block is evenly spaced outwardly protruding from the outer side of one end plate, and a second locking block is spaced outwardly protruding from the outer side of the other end plate. The first locking block is used to match and embed into the interior of a first recess, and the second locking block is used to match and embed into the interior of a second recess. Through holes are spaced apart on each side plate, and the through holes correspond one-to-one with the internal threaded holes. Bolts are used to pass through the through holes and then screw into the internal threaded holes to fix the quick-release screen inside the outlet end of the fixed box.

[0006] The aforementioned high-efficiency plastic crusher has a simple structure and is easy to use. Through the precise engagement and positioning of the first locking block and the first recess, and the second locking block and the second recess, and with the bolts passing through the through holes and then screwing into the internal threaded holes, the quick-release screen can be fixedly installed inside the outlet end of the fixed box. This eliminates the need for additional vibrating screen equipment, greatly improves the structural integration, reduces the space occupied, and is beneficial to enterprise production and maintenance.

[0007] In one embodiment, the shredder discs are located inside the fixed box, and the blades of each shredder disc are arranged in an alternating pattern.

[0008] In one embodiment, the screen is located below the shredder disc, and the screen is an arc-shaped screen with the inner surface curvature matching the outer circumferential curvature of the shredder disc.

[0009] In one embodiment, the number of first recesses is greater than the number of second recesses.

[0010] In one embodiment, the number of first card blocks is greater than the number of second card blocks.

[0011] In one embodiment, the crushing assembly further includes a reduction gearbox mounted at one end of the fixed box and a drive motor connected to the reduction gearbox; the input shaft of the reduction gearbox is used to coaxially connect to the rotor of the drive motor, and the output shaft of the reduction gearbox is used to coaxially connect to a transmission shaft.

[0012] In one embodiment, each drive shaft has a drive gear coaxially mounted on one end near the gearbox. The two drive gears mesh together, enabling the two drive shafts to rotate synchronously in opposite directions.

[0013] In one embodiment, the quick-release screen further includes a partition connected between the middle of the two end plates and a plurality of support plates evenly spaced on opposite sides of the partition; the support plates are used to abut against the screen plate upwards.

[0014] In one embodiment, the partition has a through groove in the middle. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency plastic pulverizer according to one embodiment of the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the high-efficiency plastic shredder from another perspective; Figure 3 for Figure 1 The diagram shown is an exploded view of a high-efficiency plastic shredder. Figure 4 for Figure 3 A schematic diagram showing a comparison of the crushing components and the quick-release screen in a high-efficiency plastic crusher from another perspective; Figure 5 for Figure 3 A three-dimensional schematic diagram of the quick-release screen in the high-efficiency plastic pulverizer shown; Figure 6 for Figure 5 The diagram shows a three-dimensional view of the quick-release screen in the high-efficiency plastic crusher.

[0016] Attached image annotations: 10-Rack; 20-Crushing assembly, 21-Fixed box, 211-First recess, 212-Second recess, 213-Internal threaded hole, 22-Feeding hopper, 23-Drive shaft, 24-Grinding disc, 25-Reduction gearbox, 26-Drive motor; 30-Quick-release screen, 31-Screen plate, 32-End plate, 321-First locking block, 322-Second locking block, 33-Side plate, 330-Through hole, 34-Partition plate, 340-Through groove, 35-Support plate. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] Please see Figures 1 to 6 The plastic high-efficiency crusher according to one embodiment of the present utility model includes a frame 10, a crushing component 20 installed on the frame 10, and a quick-release screen 30 that is detachably installed inside the outlet end of the crushing component 20.

[0021] The crushing assembly 20 includes a fixed box 21 mounted on the top of the frame 10, a feeding hopper 22 connected to the inlet end of the fixed box 21, two drive shafts 23 passing through and connecting the fixed box 21, a plurality of shredding discs 24 evenly spaced along the axial direction of the drive shafts 23, a reduction gearbox 25 mounted on one end of the fixed box 21, and a drive motor 26 connected to the reduction gearbox 25. The shredding discs 24 are located inside the fixed box 21, and the blades of each shredding disc 24 are arranged in a staggered pattern. The input shaft of the reduction gearbox 25 is coaxially connected to the rotor of the drive motor 26, and the output shaft of the reduction gearbox 25 is coaxially connected to one of the drive shafts 23 to transmit power.

[0022] Specifically, each drive shaft 23 has a drive gear (not shown) coaxially mounted at one end near the reduction gearbox 25. The two drive gears mesh, allowing the two drive shafts 23 to rotate synchronously in opposite directions. Furthermore, since the two drive shafts 23 rotate in opposite directions, they drive the shredding discs 24 on the two drive shafts 23 to form a reverse shearing motion, achieving efficient shearing and shredding of the input plastic waste.

[0023] In this embodiment, as Figure 4 As shown, first recesses 211 are evenly spaced on one end face of the outlet end of the fixed box 21, and second recesses 212 are spaced on the other end face of the outlet end of the fixed box 21; the number of first recesses 211 is greater than the number of second recesses 212.

[0024] Furthermore, internal threaded holes 213 are provided at intervals on the inner walls of opposite sides of the outlet end of the fixed box 21. The internal threaded holes 213 are located in the area below the shredder disc 24. The internal threaded holes 213 are used to position and connect the quick-release screen 30 so as to fix the quick-release screen 30 inside the outlet end of the fixed box 21.

[0025] The quick-release screen 30 includes two screen plates 31 arranged side by side, end plates 32 vertically connected to opposite ends of the two screen plates 31, side plates 33 vertically connected to opposite sides of the two screen plates 31, a partition 34 connecting the middle of the two end plates 32, and multiple support plates 35 evenly spaced and connected to opposite sides of the partition 34. Specifically, the top end face of the support plate 35 is completely fitted with the outer surface of the screen plate 31, and can tightly abut against the screen plate 31 upwards, forming a comprehensive support for the screen plate 31, effectively improving the structural rigidity and load-bearing strength of the entire quick-release screen 30.

[0026] like Figure 5 and Figure 6 As shown, one end plate 32 has a first locking block 321 protruding outwards at even intervals on its outer side, and the other end plate 32 has a second locking block 322 protruding outwards at even intervals on its outer side; the number of first locking blocks 321 is greater than the number of second locking blocks 322. The first locking blocks 321 are used to fit into the interior of the first recess 211, and the second locking blocks 322 are used to fit into the interior of the second recess 212. This unequal number of corresponding blocks effectively avoids incorrect assembly orientation, provides a reliable error-proofing effect, and significantly improves the accuracy and efficiency of positioning and assembly.

[0027] In this embodiment, each side plate 33 is provided with through holes 330 at intervals. The through holes 330 correspond one-to-one with the internal threaded holes 213. By using bolts to pass through the through holes 330 and then screwing them into the internal threaded holes 213, the quick-release screen 30 can be fixedly installed inside the outlet end of the fixed box 21. The assembly and disassembly are convenient and efficient.

[0028] Please refer to it again. Figure 5 and Figure 6 The screen plate 31 is located below the shredder disc 24. The screen plate 31 is an arc-shaped screen plate. The curvature of the inner surface of the screen plate 31 matches the curvature of the outer circumference of the shredder disc 24. A certain safety gap is reserved between the two. On the one hand, it can prevent the screen plate 31 and the shredder disc 24 from colliding or interfering with each other during operation. On the other hand, it can block and retain large-sized plastic particles that have not been screened inside the fixed box 21, so that they are continuously sheared and crushed by the shredder disc 24 until the particle size meets the requirements of the screen hole and then discharged.

[0029] In this embodiment, the partition 34 is provided with a through groove 340 in the middle, the length and width of which can be adapted to the grip size of the palm, so that the operator can easily reach in and hold the partition 34 to realize the quick disassembly, cleaning or replacement of the quick-release screen 30.

[0030] The aforementioned high-efficiency plastic crusher has a simple structure and is easy to use. Through the precise engagement and positioning of the first locking block 321 with the first recess 211 and the second locking block 322 with the second recess 212, and with the bolts passing through the through hole 330 and then screwed into the internal threaded hole 213, the quick-release screen 30 can be fixedly installed inside the outlet end of the fixed box 21. This eliminates the need for additional vibrating screen equipment, greatly improves the structural integration, reduces the space occupied, and is beneficial to enterprise production and maintenance.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-efficiency plastic pulverizer, characterized in that, include: frame; A crushing assembly mounted on a frame; the crushing assembly includes a fixed box mounted on the top of the frame, a feeding hopper connected to the inlet end of the fixed box, two drive shafts passing through and connecting the fixed box, and a plurality of shredding discs evenly spaced along the axial direction of the drive shafts; a first recess is evenly spaced on one end face of the outlet end of the fixed box, and a second recess is evenly spaced on the other end face of the outlet end of the fixed box; internal threaded holes are respectively spaced on the inner walls of opposite sides of the outlet end of the fixed box; and A quick-release screen is detachably installed inside the outlet end of the crushing component. The quick-release screen includes two screen plates arranged side by side, an end plate perpendicularly connected to the opposite ends of the two screen plates, and a side plate perpendicularly connected to the opposite sides of the two screen plates. A first locking block is evenly spaced outwardly protruding from the outer side of one end plate, and a second locking block is spaced outwardly protruding from the outer side of the other end plate. The first locking block is used to match and embed into the interior of a first recess, and the second locking block is used to match and embed into the interior of a second recess. Through holes are spaced apart on each side plate, and the through holes correspond one-to-one with the internal threaded holes. Bolts are used to pass through the through holes and then screw into the internal threaded holes to fix the quick-release screen inside the outlet end of the fixed box.

2. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The shredder discs are located inside the fixed box, and the blades of each shredder disc are arranged in a staggered pattern.

3. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The screen is located below the shredder disc. The screen is curved, and the curvature of the inner surface of the screen matches the curvature of the outer circumference of the shredder disc.

4. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The number of first depressions is greater than the number of second depressions.

5. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The number of the first card block is greater than the number of the second card block.

6. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The crushing assembly also includes a gearbox installed at one end of the fixed box and a drive motor connected to the gearbox; the input shaft of the gearbox is used to coaxially connect the rotor of the drive motor, and the output shaft of the gearbox is used to coaxially connect a transmission shaft.

7. The high-efficiency plastic pulverizer according to claim 1, characterized in that, Each drive shaft has a drive gear coaxially mounted on one end near the gearbox. The two drive gears mesh together, enabling the two drive shafts to rotate synchronously in opposite directions.

8. The high-efficiency plastic pulverizer according to claim 1, characterized in that, The quick-release screen also includes a partition connected between the middle of the two end plates and multiple support plates evenly spaced on opposite sides of the partition; the support plates are used to abut against the screen plate upwards.

9. The high-efficiency plastic pulverizer according to claim 8, characterized in that, The partition has a through groove in the middle.

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