Plastic pipe waste recycling and processing device

Abstract

The present invention belongs to the technical field of recycling and processing devices, and discloses a plastic pipe waste recycling and processing device, comprising a frame, a power unit and a shell being fixedly provided on the frame, an upper crushing unit, a lower crushing unit and a screening unit being arranged in sequence from top to bottom in the shell, a plurality of circumferentially distributed side grooves are provided on both sides of the shell, two side grooves form a group, the screening unit is composed of a plurality of screening mechanisms, and a group of screening mechanisms cooperates with a group of side grooves; the screening mechanism comprises two rollers, two groove blocks, two magnetic controls and two elastic parts, the two rollers are rotatably arranged between the two groove blocks, the two groove blocks are slidably arranged in the corresponding two side grooves, the two magnetic controls are respectively fixed in the two side grooves, and the two elastic parts are respectively arranged between the groove blocks and the magnetic controls in the two side grooves, wherein the groove blocks and the magnetic parts are magnetically attracted to cooperate; the present invention can not only screen the gap size, but also prevent the blockage of pipeline particles.

Description

Technical Field

[0001] The invention belongs to the technical field of recycling and processing devices, and in particular relates to a plastic pipe waste recycling and processing device. Background Art

[0002] In the process of recycling waste plastic pipes, it is necessary to crush the plastic pipes through a device to reduce the size of the plastic pipes. The conventional method is to put the plastic pipes into the interior of the device, and then use two opposing crushing rollers to crush the plastic pipes, and then use a filter to intercept the pipe particles formed after crushing, so as to separate the larger pipe particles and crush them again to ensure that the size of the crushed pipes is within the required range. However, in the process of intercepting through the filter, the filter is prone to clogging, so it needs to be cleaned regularly, and this technical problem needs to be solved. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a plastic pipe waste recycling and processing device, which effectively solves the problem that the filter screen is easily blocked during the interception process through the filter screen.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a plastic pipe waste recycling and processing device, comprising a frame, a power unit and a shell fixedly provided on the frame, an upper crushing unit, a lower crushing unit and a screening unit sequentially provided in the shell from top to bottom, a plurality of circumferentially distributed side grooves are provided on both sides of the shell, two side grooves form a group, the screening unit is composed of a plurality of screening mechanisms, and one group of screening mechanisms cooperates with one group of side grooves; the screening mechanism comprises two rollers, two groove blocks, two magnetic controls and two elastic members, the two rollers are rotatably arranged between the two groove blocks, the two groove blocks are slidably arranged in the corresponding two side grooves, the two magnetic controls are respectively fixed in the two side grooves, and the two elastic members are respectively provided between the groove blocks and the magnetic controls in the two side grooves, wherein the groove blocks and the magnetic members cooperate with each other by magnetic attraction;

[0005] In the adjustment state, the size of the screening gap between two adjacent screening mechanisms is adjusted by adjusting the magnetic force between the magnetic piece and the slot block;

[0006] In the screening state, the screening gap between two adjacent screening mechanisms fluctuates due to the fluctuation of the magnetic force between the magnetic member and the slot block.

[0007] Preferably, the magnetic control unit includes an electromagnet, which is fixed in the side groove and magnetically engaged with the groove block.

[0008] Preferably, the elastic member includes a telescopic spring, and the telescopic spring is located between the slot block and the electromagnet.

[0009] Preferably, the screening mechanism further comprises a baffle, which is fixed between the two slot blocks, with both ends of the baffle covering the outside of the two roller bodies respectively.

[0010] Preferably, the screening mechanism also includes a double-sided rack and two ratchet mechanisms. The double-sided rack is fixed to the outer wall of the shell and is located between the two ratchet mechanisms. The two ratchet mechanisms are respectively fixed to the ends of the two rollers and engage with the double-sided racks. When the screening gap between the two screening mechanisms fluctuates, the two rollers rotate unidirectionally in opposite directions.

[0011] Preferably, the ratchet mechanism includes an external gear and an internal ratchet. The external gear is rotatably arranged on the roller body and engages with the racks on both sides. A plurality of limit grooves are provided in the external gear. Two arc-shaped bars are integrally fixed on the inner ratchet. The ends of the two arc-shaped bars form limit blocks, which are used in conjunction with the limit grooves.

[0012] Preferably, the power unit includes a power motor, a transmission belt and three power pulleys, the three power pulleys are respectively fixed on the upper crushing unit, the lower crushing unit and the output shaft of the power motor, and the three power pulleys are connected by a transmission belt.

[0013] Preferably, the upper crushing unit includes an upper crushing mechanism, which includes two crushing rollers and two transmission gears. The two crushing rollers are rotatably arranged in the shell. The two transmission gears are respectively fixed on the two crushing rollers and mesh with each other, and one of the power pulleys is fixed on the corresponding crushing roller.

[0014] Preferably, the lower crushing unit includes a lower crushing mechanism and a return mechanism. The structure of the lower crushing mechanism is the same as that of the upper crushing mechanism. The return mechanism includes a return rack, multiple horizontal rods, multiple vertical rods and two small gears meshing with each other. The multiple horizontal rods are symmetrically fixed on the return rack, and the multiple vertical rods are all fixed on the return rack and located between the horizontal rods on both sides. One of the small gears is fixed on the return rack, and the other small gear is fixed on the corresponding crushing roller.

[0015] Preferably, a guide rod is fixed in the side groove, a rod hole is opened on the groove block, the rod hole and the guide rod are slidably matched, and the elastic member surrounds the guide rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. During operation, through the cooperation of the upper crushing unit, the lower crushing unit and the screening unit, the plastic pipe can be crushed multiple times so that the pipe particles produced are within the required range.

[0018] 2. During operation, by setting up multiple sets of screening mechanisms, not only can the size of the screening gap between two adjacent screening mechanisms be adjusted by adjusting the size of the magnetic force between the magnetic parts and the slot blocks, but the screening gap between two adjacent screening mechanisms can also fluctuate through the magnetic force fluctuation between the magnetic parts and the slot blocks to prevent blockage of pipeline particles.

[0019] 3. During operation, through the cooperation of the ratchet mechanism and the double-sided racks, when the magnetic force fluctuates in a small range during the screening process, the two ratchet mechanisms can enable the rollers in the two screening mechanisms to drive the stuck pipe particles, thereby separating them from the screening gap, further improving the anti-blocking performance during the screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached figure:

[0022] Figure 1 This is a structural schematic diagram of a plastic pipe waste recycling and processing device according to the present invention;

[0023] Figure 2 This is a second structural diagram of a plastic pipe waste recycling and processing device according to the present invention;

[0024] Figure 3 This is a schematic structural diagram of the upper crushing mechanism of the present invention;

[0025] Figure 4 Schematic diagram of the internal structure of the housing of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the material return mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the roller installation structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the side groove of the present invention;

[0029] Figure 8 This is a schematic diagram of the slot block installation structure of the present invention;

[0030] Figure 9 Schematic diagram of the ratchet mechanism structure of the present invention.

[0031] In the figure: 1. Frame; 2. Shell; 3. Side groove; 4. Roller body; 5. Slot block; 6. Electromagnet; 7. Telescopic spring; 8. Baffle; 9. Double-sided rack; 10. External gear; 11. Internal ratchet; 12. Limiting groove; 13. Arc bar; 14. Limiting block; 15. Power motor; 16. Transmission belt; 17. Power pulley; 18. Crushing roller; 19. Transmission gear; 20. Return rack; 21. Horizontal rod; 22. Vertical rod; 23. Pinion; 24. Guide rod; 25. Rod hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the process of recycling waste plastic pipes, it is necessary to crush the plastic pipes through a device to reduce the size of the plastic pipes. The conventional method is to put the plastic pipes into the interior of the device, and then use two opposing crushing rollers to crush the plastic pipes, and then use a filter to intercept the pipe particles formed after crushing, so as to separate the larger pipe particles and crush them again to ensure that the size of the crushed pipes is within the required range. However, in the process of intercepting through the filter, the filter is prone to clogging, so it needs to be cleaned regularly, and this technical problem needs to be solved.

[0034] Depend on Figures 1-9 The present invention relates to a plastic pipe waste recycling and processing device, comprising a frame 1, on which a power unit and a shell 2 are fixedly provided, wherein an upper crushing unit, a lower crushing unit and a screening unit are sequentially provided in the shell 2 from top to bottom, and a plurality of circumferentially distributed side grooves 3 are provided on both sides of the shell 2, wherein two side grooves 3 form a group, and the screening unit is composed of a plurality of screening mechanisms, wherein one group of screening mechanisms cooperates with one group of side grooves 3; the screening mechanism comprises two rollers 4, two slot blocks 5, two magnetic controls and two elastic members, wherein the two rollers 4 are rotatably arranged between the two slot blocks 5, and the two slot blocks 5 are slidably arranged in the corresponding two side grooves 3, the two magnetic controls are respectively fixed in the two side grooves 3, and the two elastic members are respectively arranged between the slot blocks 5 and the magnetic controls in the two side grooves 3, wherein the slot blocks 5 cooperate with the magnetic members by magnetic attraction;

[0035] In the adjustment state, the size of the screening gap between two adjacent screening mechanisms is adjusted by adjusting the magnetic force between the magnetic member and the slot block 5;

[0036] In the screening state, the screening gap between two adjacent screening mechanisms fluctuates due to the fluctuation of the magnetic force between the magnetic member and the slot block 5 .

[0037] With such a design, when in use, the discarded plastic pipes are put into the shell 2 through the feed port above the shell 2, and then the plastic pipes are initially crushed by the upper crushing unit. The pipe particles after the initial crushing are still relatively large in size, and then the pipe particles are crushed again by the lower crushing unit, so that the pipe particles after the secondary crushing are basically within a suitable range, so that the pipe particles pass through the screening unit and are discharged through the discharge port below the shell 2, and a small number of larger pipe particles remain above the screening unit. With the movement of the lower crushing unit, the larger pipe particles are transferred to the top of the lower crushing unit and then cyclically crushed, thereby ensuring that the sizes of the crushed pipe particles are within a suitable range.

[0038] During screening, the elastic force provided by the elastic member causes the slot block 5 to fit tightly against the inner top wall of the side slot 3, thereby increasing the stability of the slot block 5 and facilitating the maintenance of a constant screening gap during screening. If a blockage occurs during operation of the device, the current flowing through the magnetic member can be adjusted according to actual needs to adjust the magnitude of the magnetic force exerted by the magnetic member on the slot block 5, so that the magnetic force exerted by the magnetic member on the slot block 5 fluctuates within a small range, as follows:

[0039] When the magnetic force generated by the magnetic part on the slot block 5 is relatively large, under the action of the magnetic force, the slot block 5 slides in the side slot 3 and squeezes the elastic part, and at the same time, the slot block 5 drives the roller 4 thereon to move downward. Since multiple side slots 3 are all on a concentric arc, the gap between the rollers 4 in the two adjacent groups of side slots 3 becomes larger; when the magnetic force generated by the magnetic part on the slot block 5 is relatively small, under the action of the elastic part, the slot block 5 slides in the side slot 3, causing the elastic part to stretch, and at the same time, the slot block 5 drives the roller 4 thereon to move upward. Since multiple side slots 3 are all on a concentric arc, the gap between the rollers 4 in the two adjacent groups of side slots 3 becomes smaller; when the magnetic force produces periodic cyclic changes in size, the screening gap between the rollers 4 in the two adjacent screening mechanisms continues to fluctuate in a small range, thereby reducing the possibility of pipeline particles getting stuck in the screening gap.

[0040] At the same time, when the screening gap needs to be adjusted in order to obtain the required pipeline particle size, it is only necessary to adjust the magnetic force generated by the magnetic control on the slot block 5 over a large range. When the magnetic force is greater, the effective length of the elastic member is shorter, and the screening gap between adjacent screening mechanisms is larger. Conversely, when the magnetic force is smaller, the effective length of the elastic member is longer, and the screening gap between adjacent screening mechanisms is smaller. The maximum range is that the elastic member no longer contracts after being compressed. At this time, under the action of the maximum magnetic force, the slot block 5 is kept in the position closest to the magnetic control.

[0041] It should be noted that a flexible or elastic pad may be provided between the trough block 5 and the side trough 3 to prevent pipeline particles from entering the interior of the side trough 3 .

[0042] Specifically, the magnetic control includes an electromagnet 6, which is fixed in the side slot 3 and magnetically engages with the slot block 5. This design allows the electromagnet 6 to control the strength of the magnetic force on the slot block 5. It should be noted that the strength of the magnetic force can be adjusted not only by adjusting the current, but also by adjusting other methods such as adjusting the resistance.

[0043] Specifically, the elastic member includes a telescopic spring 7, and the telescopic spring 7 is located between the slot block 5 and the electromagnet 6. Designed in this way, the telescopic spring 7 can prevent the electromagnet 6 and the slot block 5 from contacting each other.

[0044] Considering the possibility that pipe particles may enter between the two rollers 4, the screening mechanism also includes a baffle 8, which is fixed between the two slot blocks 5, with both ends of the baffle 8 covering the outside of the two rollers 4. This design protects the two rollers 4 through the baffle 8, preventing pipe particles from entering between the two rollers 4.

[0045] In order to further improve the anti-clogging performance of the screening unit, the screening mechanism also includes a double-sided rack 9 and two ratchet mechanisms. The double-sided rack 9 is fixed to the outer wall of the shell 2 and is located between the two ratchet mechanisms. The two ratchet mechanisms are respectively fixed to the ends of the two roller bodies 4 and engage with the double-sided rack 9; when the screening gap between the two screening mechanisms fluctuates, the two roller bodies 4 rotate unidirectionally in opposite directions.

[0046] With this design, during the screening process, when the magnetic force fluctuates within a small range, the two ratchet mechanisms can move along the double-sided racks 9. Under the action of the two ratchet mechanisms, the two rollers 4 rotate in opposite directions, thereby driving the stuck pipe particles through the rollers 4 in the two adjacent screening mechanisms, thereby separating them from the screening gap.

[0047] It should be noted that a rough surface or rubber can be provided on the surface of the roller body 4 to increase the effective driving force of the roller body 4 on the pipeline particles; and the two ratchet mechanisms can be set according to actual needs to allow the stuck pipeline particles to return to the inside or be separated and discharged to the outside of the screening unit.

[0048] Taking the present application as an example, the stuck pipe particles are returned to the inner side of the screening unit. Specifically, the ratchet mechanism includes an outer gear 10 and an inner ratchet 11. The outer gear 10 is rotatably arranged on the roller body 4 and engages with the double-sided racks 9. A plurality of limit grooves 12 are provided in the outer gear 10. Two arc-shaped bars 13 are integrally fixed on the inner ratchet 11. The ends of the two arc-shaped bars 13 form limit blocks 14, and the limit blocks 14 are used in conjunction with the limit grooves 12.

[0049] With this design, when the outer gear 10 moves downward along the double-sided racks 9, the limiting groove 12 on the outer gear 10 does not limit the limiting block 14 on the inner ratchet 11, so that the roller body 4 does not rotate. When the outer gear 10 moves upward along the double-sided racks 9, the limiting groove 12 on the outer gear 10 limits the limiting block 14 on the inner ratchet 11, so that the roller body 4 rotates, and the stuck pipe particles are driven by the roller body 4 to return to the inner side of the screening unit.

[0050] It should be noted that, since the screening gap also changes in a small range during the up and down movement of the roller body 4, elastic wear-resistant rubber can be provided on the outside of the roller body 4 to ensure effective driving of the pipeline particles.

[0051] Specifically, the power unit includes a power motor 15, a transmission belt 16 and three power pulleys 17. The three power pulleys 17 are respectively fixed on the upper crushing unit, the lower crushing unit and the output shaft of the power motor 15. The three power pulleys 17 are connected by the transmission belt 16.

[0052] In this design, the power pulley 17 on it is driven to move by the power motor 15, and under the action of the transmission belt 16, the power pulley 17 on the upper crushing unit and the power pulley 17 on the lower crushing unit are driven to move, thereby realizing the driving process.

[0053] Specifically, the upper crushing unit includes an upper crushing mechanism, which includes two crushing rollers 18 and two transmission gears 19. The two crushing rollers 18 are both rotatably arranged in the shell 2. The two transmission gears 19 are respectively fixed on the two crushing rollers 18 and engage with each other. One of the power pulleys 17 is fixed on the corresponding crushing roller 18.

[0054] With this design, the corresponding crushing rollers 18 are driven to rotate by the corresponding power pulleys 17 , and under the action of the two transmission gears 19 , the two crushing rollers 18 are rotated to crush the plastic pipes.

[0055] Specifically, the lower crushing unit includes a lower crushing mechanism and a return mechanism. The structure of the lower crushing mechanism is the same as that of the upper crushing mechanism. The return mechanism includes a return rack 20, multiple horizontal rods 21, multiple vertical rods 22 and two small gears 23 meshing with each other. The multiple horizontal rods 21 are symmetrically fixed on the return rack 20, and the multiple vertical rods 22 are all fixed on the return rack 20 and located between the horizontal rods 21 on both sides. One of the small gears 23 is fixed on the return rack 20, and the other small gear 23 is fixed on the corresponding crushing roller 18.

[0056] With this design, the working principle of the lower crushing mechanism is the same as that of the upper crushing mechanism, so it will not be repeated here. The specific process of the return mechanism is: the return rack 20 is rotated by the transmission of the two small gears 23, and the return rack 20 can scoop up the larger pipe particles at the bottom through the horizontal rod 21 and the vertical rod 22 thereon, and then transfer the scooped larger pipe particles to the top of the lower crushing mechanism for crushing again during the rotation of the return rack 20 to ensure the size of the crushed pipe particles.

[0057] Specifically, a guide rod 24 is fixed in the side groove 3, and a rod hole 25 is opened on the groove block 5. The rod hole 25 is slidably matched with the guide rod 24, and the elastic member is wrapped around the guide rod 24. This design can make the movement of the groove block 5 more stable through the guide rod 24.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe waste recycling and processing device, comprising a frame (1), a power unit and a housing (2) fixedly provided on the frame (1), an upper crushing unit, a lower crushing unit and a screening unit provided in the housing (2) from top to bottom, characterized in that: Both sides of the shell (2) are provided with a plurality of circumferentially distributed side grooves (3), two side grooves (3) form a group, the screening unit is composed of a plurality of screening mechanisms, one group of screening mechanisms cooperates with one group of side grooves (3); the screening mechanism comprises two rollers (4), two groove blocks (5), two magnetic control components and two elastic components, the two rollers (4) are rotatably arranged between the two groove blocks (5), the two groove blocks (5) are slidably arranged in the corresponding two side grooves (3), the two magnetic control components are respectively fixed in the two side grooves (3), and the two elastic components are respectively arranged between the groove blocks (5) and the magnetic control components in the two side grooves (3), wherein the groove blocks (5) and the magnetic components are magnetically matched; In the adjustment state, the size of the screening gap between two adjacent screening mechanisms is adjusted by adjusting the magnetic force between the magnetic member and the slot block (5); In the screening state, the screening gap between two adjacent screening mechanisms fluctuates due to the magnetic force fluctuation between the magnetic member and the slot block (5).

2. The plastic pipe waste recycling and processing device according to claim 1, characterized in that: The magnetic control unit comprises an electromagnet (6), which is fixed in the side slot (3) and magnetically engaged with the slot block (5).

3. The plastic pipe waste recycling and processing device according to claim 1, characterized in that: The elastic member comprises a telescopic spring (7), and the telescopic spring (7) is located between the slot block (5) and the electromagnet (6).

4. The plastic pipe waste recycling and processing device according to claim 1, characterized in that: The screening mechanism further comprises a baffle (8), which is fixed between the two slot blocks (5), with both ends of the baffle (8) respectively covering the outside of the two roller bodies (4).

5. The plastic pipe waste recycling and processing device according to claim 4, characterized in that: The screening mechanism further comprises a double-sided rack (9) and two ratchet mechanisms, wherein the double-sided rack (9) is fixed to the outer wall of the housing (2) and is located between the two ratchet mechanisms, and the two ratchet mechanisms are respectively fixed to the ends of the two roller bodies (4) and mesh with the double-sided rack (9); when the screening gap between the two screening mechanisms fluctuates, the two roller bodies (4) are caused to rotate unidirectionally in opposite directions.

6. The plastic pipe waste recycling and processing device according to claim 5, characterized in that: The ratchet mechanism comprises an outer gear (10) and an inner ratchet (11). The outer gear (10) is rotatably arranged on the roller body (4) and meshes with the racks (9) on both sides. A plurality of limiting grooves (12) are provided in the outer gear (10). Two arc-shaped bars (13) are integrally fixed to the inner ratchet (11). The ends of the two arc-shaped bars (13) form limiting blocks (14), which cooperate with the limiting grooves (12) for use.

7. The plastic pipe waste recycling and processing device according to claim 1, characterized in that: The power unit comprises a power motor (15), a transmission belt (16) and three power pulleys (17). The three power pulleys (17) are respectively fixed on the output shafts of the upper crushing unit, the lower crushing unit and the power motor (15). The three power pulleys (17) are connected to each other through the transmission belt (16).

8. The plastic pipe waste recycling and processing device according to claim 7, characterized in that: The upper crushing unit comprises an upper crushing mechanism, which comprises two crushing rollers (18) and two transmission gears (19). The two crushing rollers (18) are both rotatably arranged in the housing (2). The two transmission gears (19) are respectively fixed on the two crushing rollers (18) and mesh with each other. One of the power pulleys (17) is fixed on the corresponding crushing roller (18).

9. The plastic pipe waste recycling and processing device according to claim 8, characterized in that: The lower crushing unit comprises a lower crushing mechanism and a return mechanism. The structure of the lower crushing mechanism is the same as that of the upper crushing mechanism. The return mechanism comprises a return frame (20), a plurality of horizontal rods (21), a plurality of vertical rods (22) and two mutually meshing pinions (23). The plurality of horizontal rods (21) are symmetrically fixed on the return frame (20). The plurality of vertical rods (22) are all fixed on the return frame (20) and located between the horizontal rods (21) on both sides. One of the pinions (23) is fixed on the return frame (20), and the other pinion (23) is fixed on the corresponding crushing roller (18).

10. The plastic pipe waste recycling and processing device according to claim 1, characterized in that: A guide rod (24) is fixed in the side groove (3), a rod hole (25) is opened on the groove block (5), the rod hole (25) is slidably matched with the guide rod (24), and the elastic member surrounds the guide rod (24).

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