A plastic product recycling pretreatment device

Abstract

The present invention discloses a plastic product recycling pretreatment device, which relates to the technical field of crushing equipment, and includes a frame, a crushing tooth roller, a collection bin, a crushing bin, a first end cover, a second end cover, and a sliding mounting plate. A motor is installed on the outer wall of the sliding mounting plate, and a crushing blade is connected to the output shaft of the motor; a pushing assembly is arranged in the crushing bin. In the present invention, after the plastic products are initially crushed by two crushing tooth rollers, they enter the collecting bin, and the pushing assembly pushes the initially crushed plastic products to the crushing blades, and the crushing blades crush them, so that the volume of the plastic products can be further reduced, and then in the subsequent heating and melting process, the time consumed for heating and melting the plastic products is shortened, and the efficiency of the plastic product recycling processing is improved. In addition, the pushing assembly can compact the initially crushed plastic products, so that when the crushing blades are crushed, the crushing effect will not be poor due to the scattering of broken products.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizing equipment, in particular to a plastic product recycling pretreatment device. Background Art

[0002] When recycling plastic products, workers first crush them, then heat and melt them, and then they can be recycled and processed. When the current crushing equipment crushes plastic products, the staff puts the plastic products into the crushing equipment, and the crushing tooth rollers in the crushing equipment crush the plastic products. For example, a plastic crusher (IPC classification number B02C4 / 08) disclosed in the Chinese utility model patent publication number CN221334408U, the crushing equipment in the prior art squeezes and crushes the plastic products through the tooth blocks on the crushing wheel. Since the heating and melting time of the plastic products is directly proportional to the volume of the plastic products, that is, the larger the volume of the plastic products, the less likely they are to be completely heated and melted, while the smaller the volume of the plastic products, the higher the efficiency of heating and melting. The plastic crusher in the prior art mainly relies on the crushing wheel to tear and crush the plastic products, but the crushing effect of the plastic products is not very ideal, that is, the volume of the plastic products after crushing by the prior art is generally large, and there may be a phenomenon of extrusion into pieces, and the volume of the plastic products cannot be further crushed, which makes the volume of the plastic products larger after crushing, so that when heating and melting are performed later, it takes a long time to completely heat and melt the plastic products. Summary of the invention

[0003] The object of the present invention is to provide a plastic product recycling pretreatment device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A plastic product recycling pretreatment device comprises a crusher frame and two crushing tooth rollers mounted on the frame, and also comprises:

[0006] A collecting bin installed at the bottom of the frame, wherein the collecting bin is located below the two crushing tooth rollers;

[0007] A crushing bin horizontally fixed to the lower end of the collecting bin, the crushing bin is in communication with the collecting bin, and the crushing bin has a first end cover and a second end cover connected to both axial ends thereof respectively;

[0008] A sliding mounting plate vertically slidably connected to the outer wall of the second end cover, a motor is mounted on the outer wall of the sliding mounting plate, and a crushing blade is connected to the output shaft of the motor;

[0009] A material pushing assembly is arranged in the crushing bin.

[0010] Furthermore, a reduction motor is installed on the frame, and the reduction motor is drivingly connected to the two crushing tooth rollers through a gear box.

[0011] Furthermore, a feeding bin is installed on the top of the frame, and the feeding bin is used in conjunction with the two crushing tooth rollers.

[0012] The cam is an angular channel that is adapted to move the at least one camshaft together to form a circle which is adapted to move the at least one camshaft in a direction of rotation and which is adapted to move the at least one camshaft in a direction of rotation.

[0013] Furthermore, the elastic member is a spring vertically installed in the accommodating groove, and the outer wall of the telescopic plate is provided with a mounting hole for installing the spring.

[0014] Furthermore, the compacting unit includes two inclined plates fixedly connected to the inner cavity wall of the crushing bin away from the first end cover, the opposite ends of the two inclined plates extend obliquely toward the direction of the second end cover, and the opposite ends of the two inclined plates are commonly fixed with a compacting channel, the compacting channel corresponds to the two axial openings of the crushing bin, and the crushing blade corresponds to the mouth of the compacting channel.

[0015] Furthermore, the outer wall of the second end cover is fixed with two blocks, and the outer walls on opposite sides of the two blocks are respectively provided with a slot, and the outer walls on both sides of the sliding mounting plate are respectively fixed with a block, and the two blocks are correspondingly engaged in the two slots and can slide freely up and down.

[0016] Furthermore, a first ear block is fixedly connected to the outer wall of the sliding mounting plate, a sliding pin is horizontally fixedly connected to the first ear block, a second ear block is fixedly connected to the outer wall of the second end cover, the second ear block is horizontally rotatably connected to a rotating disk via a rotating shaft, a special-shaped slide groove is provided on the end surface of the rotating disk, the special-shaped slide groove includes two large arc grooves and two small arc grooves connected end to end, the end of the sliding pin is inserted into the special-shaped slide groove and slides freely in the special-shaped slide groove, and a rotating unit for driving the rotating disk to rotate is provided on the sliding push rod.

[0017] Furthermore, the rotating unit includes a driving shaft horizontally inserted through the crushing bin, a gear portion is fixedly connected to the portion of the driving shaft that penetrates into the crushing bin, a rack portion meshing with the gear portion is provided on the periphery of the sliding push rod, a first rotating wheel is fixedly sleeved on each of the two ends of the driving shaft, a second rotating wheel is fixedly sleeved on the rotating shaft, and the end faces of the first rotating wheel and the second rotating wheel located on the same side of the crushing bin are hinged together with a hinge rod.

[0018] Furthermore, the end surface of the second end cover is provided with a clearance groove for the output shaft of the motor to pass freely.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, after the plastic products are initially crushed by two crushing tooth rollers, they enter the collecting bin, and the pushing assembly pushes the initially crushed plastic products to the crushing blades, which crush them, so that the volume of the plastic products can be further reduced, and then in the subsequent heating and melting process, the time consumed for heating and melting the plastic products is shortened, thereby improving the efficiency of plastic product recycling processing. In addition, the pushing assembly can compact the initially crushed plastic products, so that when the crushing blades are crushed, the phenomenon of poor crushing effect will not occur due to the scattering of broken products;

[0021] 2. In the present invention, by providing two inclined plates and a compacting channel, the plastic product is squeezed by the inner wall of the compacting channel when entering the compacting channel, thereby making the plastic product compacted. In addition, since the two telescopic plates can slide up and down in the receiving groove, the two telescopic plates can contact the downward side of the inclined plates, thereby squeezing the plastic product entering the two inclined plates to the greatest extent, thereby improving the compaction degree of the plastic product.

[0022] 3. In the present invention, a sliding mounting plate is arranged to slide up and down on the surface of the second end cover, and when the sliding push rod moves horizontally, the gear part and the rack part are meshed and driven, thereby causing the driving shaft to rotate. When the driving shaft rotates, the hinge rod is driven to move, so that the rotating shaft drives the rotating disk to rotate, so that the sliding pin can slide alternately in the two large arc grooves and the two small arc grooves, thereby driving the sliding mounting plate to move up and down reciprocatingly during the plastic product crushing process, so that all parts of the crushing blade surface can participate in the crushing of the plastic products, avoiding the occurrence of severe local wear of the crushing blade. In addition, since the crushing blade can reciprocate up and down, the crushing range of the crushing blade is increased, thereby reducing the crushing blind area or dead angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the overall structure of a plastic product recycling pretreatment device in the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure from the first perspective;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of the second perspective;

[0026] Figure 4 for Figure 1 The schematic diagram of the position relationship of the frame, reduction motor and feeding bin is omitted;

[0027] Figure 5 for Figure 4 A schematic diagram of the structure from another perspective;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point A;

[0029] Figure 7 for Figure 4 Schematic diagram of the positional relationship after the middle part of the structure is cut open;

[0030] Figure 8 for Figure 7 A schematic diagram of the structure from the first perspective;

[0031] Fig. 9 for Figure 7 A schematic diagram of the structure of the second perspective;

[0032] Fig.10 for Figure 4 The schematic diagram of the position relationship after the feeding bin is omitted;

[0033] Fig.11 It is a schematic diagram of the positional relationship between the fixed plate and the two telescopic plates after being assembled in the present invention;

[0034] Fig.12 for Fig.11 Schematic diagram of the exploded decomposition of the structure.

[0035] In the figure, the description of each figure mark is as follows: 1, feeding bin; 2, crushing gear roller; 3, reduction motor; 4, frame; 5, pushing cylinder; 6, first end cover; 7, hinge rod; 8, crushing bin; 9, second end cover; 10, motor; 11, sliding mounting plate; 12, block; 13, second rotating wheel; 14, rotating shaft; 15, rotating disk; 16, discharge port; 17, first rotating wheel; 18, driving shaft; 19, sliding push rod; 20, connecting plate; 21, rack portion; 22, collecting bin; 23, block; 24, slot; 25, large arc slot; 26, small arc slot; 27, sliding pin; 28, inclined plate; 29, fixed plate; 30, telescopic plate; 31, crushing blade; 32, compacting channel; 33, gear portion; 34, accommodating slot; 35, spring; 36, air avoidance slot. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1 - Fig.12 The present invention provides a technical solution: a plastic product recycling pretreatment device, comprising a crusher frame 4 and two crushing tooth rollers 2 installed on the frame 4 through roller shafts, the two roller shafts are driven by gears, and a reduction motor 3 is vertically installed on the frame 4, the output shaft of the reduction motor 3 is drivingly connected to a gear box, and the output end of the gear box is drivingly connected to one of the roller shafts, so that the output shaft of the reduction motor 3 rotates, and then the two roller shafts can be driven to rotate, thereby driving the two crushing tooth rollers 2 to rotate, and a feeding bin 1 is also welded on the top of the frame 4, and the feeding bin 1 is in a bundle shape from top to bottom. In addition, the interior of the feeding bin 1 is located above the two crushing tooth rollers 2, and is used in conjunction with the two crushing tooth rollers 2. When feeding, the staff directly puts the plastic products into the feeding bin 1, and the crushing tooth roller 2 rotates, so that the tooth blocks on the crushing tooth roller 2 bite the plastic products, and then the plastic products are crushed;

[0038] A collecting bin 22 in a beam-shaped shape from top to bottom is installed at the bottom of the frame 4. The collecting bin 22 is located below the two crushing tooth rollers 2. A crushing bin 8 is horizontally welded to the lower port of the collecting bin 22. The crushing bin 8 is connected to the collecting bin 22. The first end cover 6 and the second end cover 9 are respectively connected to the two axial ends of the crushing bin 8. The plastic products that have been initially crushed by the crushing tooth rollers 2 will fall into the collecting bin 22 and then enter the crushing bin 8. A discharge port 16 with a downward mouth is provided on the peripheral edge of one side of the crushing bin 8 adjacent to the second end cover 9. In addition, a sliding mounting plate 11 is vertically slidably connected to the outer wall of the second end cover 9. Specifically, two blocks 12 are fixedly connected to the outer wall of the second end cover 9, and a card slot 24 (such as Figure 6 As shown, the outer walls of the sliding mounting plate 11 on both sides are fixed with a block 23, and the two blocks 23 are correspondingly engaged in the two slots 24 and can slide freely up and down, so that the sliding mounting plate 11 slides vertically on the end surface of the second end cover 9. In addition, the outer wall of the sliding mounting plate 11 is installed with a motor 10, and the output shaft of the motor 10 is connected to a crushing blade 31 (as shown in FIG. Fig.10 As shown in the figure), the end surface of the second end cover 9 is provided with a clearance groove 36 through which the output shaft of the power supply machine 10 can freely pass, and the rotation diameter of the crushing blade 31 is much smaller than the inner diameter of the crushing chamber 8;

[0039] Two inclined plates 28 are welded to the inner cavity wall of the crushing bin 8 away from the first end cover 6, and the opposite ends of the two inclined plates 28 extend obliquely toward the direction of the second end cover 9, and the opposite ends of the two inclined plates 28 are commonly fixed with a compacting channel 32, and the compacting channel 32 is open at both ends corresponding to the axial direction of the crushing bin 8, and the crushing blade 31 corresponds to the mouth of the compacting channel 32. A fixed plate 29 is slidably engaged with the inner cavity of the crushing bin 8, and the outer walls of the fixed plate 29 on both sides of the lateral side are in sliding contact with the inner cavity wall of the crushing bin 8. A receiving groove 34 in the form of a notch is respectively provided at the upper and lower ends of the fixed plate 29, and a telescopic plate 30 is installed in the receiving groove 34, and the telescopic plate 30 slides freely up and down in the receiving groove 34, and a spring 35 is provided in the receiving groove 34, and the outer wall of the telescopic plate 30 is provided with a spring 35 for installing the spring 35 The mounting hole, in the initial state, the spring 35 has a pre-pressure on the telescopic plate 30, so that the spring 35 elastically presses against the telescopic plate 30 and drives the telescopic plate 30 to move toward the outer side of the fixed plate 29. The outer wall of the first end cover 6 is horizontally penetrated with a sliding push rod 19, and the sliding push rod 19 slides freely on the first end cover 6, and one end of the sliding push rod 19 that penetrates into the crushing bin 8 is fixedly connected to the outer wall of the fixed plate 29, and the other end of the sliding push rod 19 is fixedly connected to the connecting plate 20, and the outer wall of the connecting plate 20 is horizontally installed with a pushing cylinder 5, and the cylinder rod of the pushing cylinder 5 penetrates the connecting plate 20 and is connected to the first end cover 6. When the cylinder rod of the pushing cylinder 5 is extended and retracted, it will drive the sliding push rod 19 to slide on the first end cover 6, and then can drive the fixed plate 29 to slide horizontally in the inner cavity of the crushing bin 8;

[0040] A first ear block is welded to the outer wall of the sliding mounting plate 11, and a sliding pin 27 is fixedly connected to the first ear block horizontally. A second ear block is fixedly connected to the outer wall of the second end cover 9, and a rotating disk 15 is horizontally rotatably connected to the second ear block through a rotating shaft 14. A special-shaped slide groove is opened on the end surface of the rotating disk 15. The special-shaped slide groove includes two large arc grooves 25 and two small arc grooves 26 connected in sequence from head to tail. The end of the sliding pin 27 is inserted into the special-shaped slide groove, combined with Figure 5 and Figure 6 As shown, two large arc grooves 25 and two small arc grooves 26 are alternately arranged on the end surface of the rotating disk 15, that is, the sliding pin 27 can slide from a large arc groove 25 to a small arc groove 26, and then slide from the small arc groove 26 to another large arc groove 25, and finally slide from the large arc groove 25 to another small arc groove 26, completing the closed loop of the sliding track of the sliding pin 27 on the end surface of the rotating disk 15, and freely slide in the special-shaped slide groove, the crushing bin 8 is horizontally penetrated with a driving shaft 18, and the driving shaft 18 is rotatably connected to the crushing bin 8 through a bearing, and the portion where the driving shaft 18 penetrates into the crushing bin 8 is fixedly connected with a gear portion 33, A rack portion 21 meshing with the gear portion 33 is provided on the periphery of the sliding push rod 19, and a first rotating wheel 17 is fixedly sleeved on both ends of the driving shaft 18. A second rotating wheel 13 is fixedly sleeved on the rotating shaft 14. The end surfaces of the first rotating wheel 17 and the second rotating wheel 13 located on the same side of the crushing bin 8 are hingedly connected with a hinge rod 7. The rotation fulcrum of the hinge rod 7 on the first rotating wheel 17 and the second rotating wheel 13 is not coaxial with the first rotating wheel 17 and the second rotating wheel 13. When the first rotating wheel 17 rotates, the hinge rod 7 will drive the second rotating wheel 13 to rotate synchronously in the same direction, so that the sliding push rod 19 can drive the rotating disk 15 to rotate when it moves horizontally.

[0041] Working principle of the present invention:

[0042] Initial crushing: Workers put the plastic products to be recycled into the feeding bin 1, and the crushing tooth roller 2 rotates so that the teeth on the crushing tooth roller 2 bite the plastic products and then crush the plastic products. The plastic products after initial crushing fall into the collecting bin 22 and then enter the crushing bin 8;

[0043] Crushing: After all the plastic products after preliminary crushing enter the crushing bin 8, start the push cylinder 5 and the motor 10 at the same time. The output shaft of the motor 10 rotates and drives the crushing blade 31 to rotate. The cylinder rod of the push cylinder 5 shortens, thereby driving the sliding push rod 19 to move toward the inner side of the crushing bin 8 and driving the fixed plate 29 to move toward the second end cover 9. At the same time, the gear part 33 will mesh with the rack part 21 on the sliding push rod 19, so that the gear part 33 drives the driving shaft 18 to rotate. When the driving shaft 18 rotates, the first rotating wheel 17 will rotate. When the first rotating wheel 17 rotates, the hinge rod 7 will drive the second rotating wheel 13 to rotate synchronously in the same direction. The sliding push rod 19 can rotate, thereby making the rotating disk 15 rotate when the sliding push rod 19 moves horizontally, so that the sliding pin 27 can slide in the two large arc grooves 25 and the two small arc grooves 26 in sequence, thereby driving the sliding mounting plate 11 to reciprocate up and down, thereby driving the crushing blade 31 to reciprocate up and down. In addition, in this embodiment, the pushing cylinder 5 can also be installed on the surface of the first end cover 6, and the cylinder rod of the pushing cylinder 5 is connected to the connecting plate 20. In this way, the sliding push rod 19 can also be driven to move horizontally through the extension and contraction of the cylinder rod of the pushing cylinder 5. However, this will cause the length of the sliding push rod 19 to be set too long, which makes it inconvenient to transport and move the crusher.

[0044] When the push cylinder 5 drives the fixed plate 29 to move, the fixed plate 29 and the telescopic plate 30 will push the plastic products in the crushing bin 8 between the two inclined plates 28. The plastic products will be squeezed by the two inclined plates 28 and the inner wall of the compacting channel 32. The plastic products after preliminary crushing will be squeezed and compacted. The crushing blade 31 will cut and crush the plastic products exposed at the mouth of the compacting channel 32. When the telescopic plate 30 enters between the two inclined plates 28, it will be squeezed by the surface of the inclined plate 28, and then the spring 35 will be compressed, so that the telescopic plate 30 can move in the direction of retracting into the inside of the accommodating groove 34, so that the plastic products can be squeezed to the greatest extent. The products are squeezed into the compacting channel 32, and the cut and crushed plastic products will fall from the discharge port 16, or be collected by workers through the discharge port 16. In this embodiment, since the surface of the compacted plastic products may be harder than that of the loose plastic products, the sliding mounting plate 11 moves back and forth up and down during the plastic product crushing process, so that all parts of the surface of the crushing blade 31 can participate in the crushing of the plastic products, thereby avoiding the occurrence of severe local wear of the crushing blade 31. In addition, since the crushing blade 31 can reciprocate up and down, the crushing range of the crushing blade 31 is increased, thereby reducing the crushing blind area or dead angle.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic product recycling pretreatment device, comprising a crusher frame and two crushing tooth rollers mounted on the frame, characterized in that: Also includes: The collecting bin is installed at the bottom of the frame and is located below the two crushing rollers; A crushing bin is horizontally fixed to the lower end of the collecting bin, the crushing bin is connected to the collecting bin, and the two axial ends of the crushing bin are respectively connected to a first end cover and a second end cover; A sliding mounting plate is vertically slidably connected to the outer wall of the second end cover, a motor is mounted on the outer wall of the sliding mounting plate, and a crushing blade is connected to the output shaft of the motor; A material pushing assembly provided in the crushing bin; The pushing assembly includes a fixed plate mounted on the inner cavity of the crushing bin, the outer walls of the fixed plate on both sides are in sliding contact with the inner cavity wall of the crushing bin, the upper and lower ends of the fixed plate are respectively provided with a receiving groove in the form of a notch, a telescopic plate is mounted on the receiving groove, the telescopic plate slides freely up and down in the receiving groove, and an elastic member is provided in the receiving groove, the elastic member is used to elastically press the telescopic plate and drive the telescopic plate to move toward the outer side of the fixed plate, a sliding push rod is horizontally penetrated on the outer wall of the first end cover, the sliding push rod slides freely on the first end cover, and one end of the sliding push rod that penetrates into the crushing bin is fixedly connected to the outer wall of the fixed plate, the other end of the sliding push rod is fixedly connected to a connecting plate, a pushing cylinder is horizontally installed on the outer wall of the connecting plate, the cylinder rod of the pushing cylinder penetrates the connecting plate and is connected to the first end cover, and a compacting unit is fixedly connected to the inner cavity of the crushing bin; The elastic member is a spring vertically installed in the receiving groove, and the outer wall of the telescopic plate is provided with a mounting hole for the spring to be installed; The compacting unit includes two inclined plates fixedly connected to the inner cavity wall on the side of the crushing bin away from the first end cover, the opposite ends of the two inclined plates extend obliquely toward the second end cover, and the opposite ends of the two inclined plates are commonly fixed with a compacting channel, the compacting channel is open at both ends corresponding to the axial direction of the crushing bin, and the crushing blade corresponds to the opening of the compacting channel.

2. The plastic product recycling pretreatment device according to claim 1, characterized in that: A reduction motor is installed on the frame, and the reduction motor is drivingly connected to the two crushing tooth rollers through a gear box.

3. The plastic product recycling pretreatment device according to claim 1, characterized in that: A feeding bin is installed on the top of the frame, and the feeding bin is used in conjunction with the two crushing tooth rollers.

4. The plastic product recycling pretreatment device according to claim 1, characterized in that: The outer wall of the second end cover is fixed with two blocks, and the outer walls on opposite sides of the two blocks are respectively provided with a slot. The outer walls on both sides of the sliding mounting plate are respectively fixed with a block, and the two blocks are correspondingly engaged in the two slots and can slide freely up and down.

5. The plastic product recycling pretreatment device according to claim 1, characterized in that: A first ear block is fixedly connected to the outer wall of the sliding mounting plate, a sliding pin is horizontally fixedly connected to the first ear block, a second ear block is fixedly connected to the outer wall of the second end cover, the second ear block is horizontally rotatably connected to a rotating disk via a rotating shaft, a special-shaped slide groove is provided on the end surface of the rotating disk, the special-shaped slide groove includes two large arc grooves and two small arc grooves connected end to end, the end of the sliding pin is inserted into the special-shaped slide groove and slides freely in the special-shaped slide groove, and a rotating unit for driving the rotating disk to rotate is provided on the sliding push rod.

6. The plastic product recycling pretreatment device according to claim 5, characterized in that: The rotating unit includes a driving shaft horizontally inserted through the crushing bin, a gear portion is fixedly connected to the portion of the driving shaft that penetrates into the crushing bin, a rack portion meshing with the gear portion is provided on the periphery of the sliding push rod, a first rotating wheel is fixedly sleeved on each of the two ends of the driving shaft, a second rotating wheel is fixedly sleeved on the rotating shaft, and a hinge rod is hingedly connected to the end surfaces of the first rotating wheel and the second rotating wheel located on the same side of the crushing bin.

7. The plastic product recycling pretreatment device according to claim 6, characterized in that: The end surface of the second end cover is provided with a clearance groove for the output shaft of the motor to pass freely.

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