Plastic particle processing device

Abstract

The invention relates to the field of particle processing, in particular to a plastic particle processing device which comprises a vertical pipe and a plurality of material adding pipes arranged on the side face of the vertical pipe and used for adding plastic strips, an upper cover is fixedly installed at the upper end of the vertical pipe, a center pipe is rotationally arranged at the center of the upper cover, and a disc is fixed to the lower end of the center pipe. A plurality of cutters attached to the inner wall of the vertical pipe are fixed to the disc and used for cutting off plastic strips at the feeding pipe, a center shaft rotates in the center pipe, a plurality of crushing cutters are fixed to the lower end of the center shaft, a crushing filter screen slides at the lower end in the vertical pipe in a lifting mode, and crushed materials in the vertical pipe are screened in a vibrating mode. And meanwhile, the crushed materials fly to the crushing cutter to be crushed. The filter screen can be prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the field of particle processing, in particular to a plastic particle processing device. Background Art

[0002] The processing of plastic pellets generally involves mixing the polymerized plastic resin with other additives in a molten state, and then extruding the molten and mixed plastic through an extruder; during extrusion, it passes through a mold called an "extrusion head" to form a continuous plastic strip; the extruded plastic strip solidifies after cooling, and finally the solidified plastic strip is broken and cut into pellets.

[0003] Since the shape of the particles after crushing and cutting is not fixed, in the crushing and cutting device, the plastic particles are very likely to clog the crushing filter, thereby affecting the efficiency of crushing and cutting into particles. Summary of the invention

[0004] The object of the present invention is to provide a plastic particle processing device which can avoid filter screen clogging.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A plastic particle processing device comprises a vertical tube, and a plurality of feeding tubes arranged on the side of the vertical tube for adding plastic strips, wherein an upper cover is fixedly installed on the upper end of the vertical tube, a central tube is rotated at the center of the upper cover, a disc is fixed at the lower end of the central tube, a plurality of cutting knives attached to the inner wall of the vertical tube are fixed on the disc, and the plastic strips at the feeding tube are cut off, a central shaft is rotated in the central tube, a plurality of crushing knives are fixed at the lower end of the central shaft, a crushing filter screen is lifted and slid at the lower end of the vertical tube, the crushed materials in the vertical tube are vibrated and screened, and the crushed materials are simultaneously made to fly to the crushing knives for crushing.

[0007] A support rod is arranged downward at the center of the crushing filter screen, a cross beam is fixed at the lower end of the support rod, and two inclined screen plates are symmetrically fixed on the cross beam.

[0008] A bottom plate is fixed to the outside of the lower end of the vertical pipe, and supporting side plates are fixed on both sides of the bottom plate. The two inclined screen plates are fitted and slid between the two supporting side plates.

[0009] Two mounting plates are symmetrically fixed on the upper cover, and a power motor for transmitting the central tube and the central shaft at the same time is installed on one of the mounting plates.

[0010] A transmission shaft that is simultaneously connected to the center tube and the center axis is installed on the other mounting plate. A turntable is fixed on the transmission shaft. An eccentric pin is provided at the eccentric part of the turntable. A linkage plate I is rotatably mounted on the eccentric pin. Both ends of the crossbeam pass through two supporting side plates respectively, and sealing plates are fixed on both ends of the crossbeam for sealing the long holes on the supporting side plates. The lower end of the linkage plate I is rotatably connected to one of the sealing plates.

[0011] A through seat is fixed at the lower end of each of the feeding tubes, and a pushing plate is obliquely and slidably provided in each of the through seats.

[0012] A connecting frame is provided at the lower end of each pushing plate, a transmission ring is slidably sleeved on the vertical tube, a plurality of support arm rods are fixed on the transmission ring, the plurality of support arm rods are respectively slidably connected with a plurality of connecting frames, and a linkage plate II is rotatably connected between the transmission ring and the linkage plate I.

[0013] A spring is arranged between the connecting frame and the corresponding penetrating seat.

[0014] A plurality of card slots are evenly arranged on the upper end of the pushing plate.

[0015] The upper edge of the crushing filter screen is provided with a cone edge, so that the crushed materials gather toward the middle of the crushing filter screen.

[0016] Beneficial effects of the present invention:

[0017] 1. The crushing filter slides up and down on the vertical pipe, vibrating the particles on the upper surface of the crushing filter, thereby preventing the plastic particles from being retained on the upper surface of the crushing filter. At the same time, the unqualified plastic particles with larger particle size can be shaken again by the rising crushing filter to the crushing knife and crushed again, thereby avoiding excessive accumulation of unqualified plastic particles in the crushing space and ensuring the processing efficiency of plastic particles;

[0018] 2. Through the setting of two inclined screen plates, the plastic particles screened out by the crushing filter are screened for secondary screening;

[0019] 3. Through a power motor, it can simultaneously drive the cutting knife and the crushing knife to rotate, the crushing filter and the two inclined screen plates to rise and fall and vibrate, and the push plate to rise and fall, thus forming an efficient use of the power motor and ensuring the coordinated operation of the above parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a plastic granule processing device;

[0021] Figure 2 is a schematic cross-sectional view of a plastic pellet processing device;

[0022] Figure 3 It is a partial schematic diagram of a plastic granule processing device;

[0023] Figure 4 It is a schematic diagram of the structure of the vertical pipe;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the vertical pipe;

[0025] Figure 6 It is a schematic diagram of the structure of the upper cover;

[0026] Figure 7 It is a schematic diagram of the structure of the disc, cutter, center shaft and crushing knife;

[0027] Figure 8 It is a schematic diagram of the structure of the crushing filter, support rods, and inclined screen plates;

[0028] Fig. 9 It is a structural schematic diagram of a transmission ring, a support arm rod, a connecting frame, and a pushing plate.

[0029] In the figure:

[0030] Vertical pipe 101; feeding pipe 102; bottom plate 103; supporting side plate 104; through seat 105;

[0031] Upper cover 201; mounting plate 202;

[0032] Central tube 301; disc 302; cutter 303; central axis 304; crushing knife 305;

[0033] Crushing filter 401; support rod 402; inclined screen plate 403; crossbeam 404; blocking plate 405;

[0034] Transmission shaft 501; rotating disk 502; eccentric pin 503; linkage plate I 504; linkage plate II 505;

[0035] Transmission ring 601; support arm rod 602; connecting frame 603; pushing plate 604; spring 605. DETAILED DESCRIPTION

[0036] like Figure 1-9 As shown, a detailed description of the plastic granule processing device:

[0037] A plastic particle processing device comprises a vertical tube 101, and a plurality of feeding tubes 102 arranged on the side of the vertical tube 101 for adding plastic strips, wherein an upper cover 201 is fixedly installed on the upper end of the vertical tube 101, a central tube 301 is rotated at the center of the upper cover 201, a disc 302 is fixed at the lower end of the central tube 301, a plurality of cutting knives 303 attached to the inner wall of the vertical tube 101 are fixed on the disc 302, and are used to cut the plastic strips at the feeding tube 102, a central shaft 304 is rotated in the central tube 301, a plurality of crushing knives 305 are fixed at the lower end of the central shaft 304, a crushing filter screen 401 is lifted and slid at the lower end of the vertical tube 101, and the crushed materials in the vertical tube 101 are vibrated and screened, and the crushed materials are simultaneously made to fly to the crushing knives 305 for crushing.

[0038] The upper end of the vertical pipe 101 is blocked by the upper cover 201, and the lower end of the vertical pipe 101 is blocked by the crushing filter 401, so that a crushing space is formed inside the vertical pipe 101;

[0039] When in use, the plastic strip is inserted into the vertical tube 101 through the feeding tube 102. As the cutter 303 of the disc 302 rotates, it moves to the plastic strip and initially cuts the plastic strip to prevent the plastic strip from being stuck in the crushing space and unable to contact the crushing knife 305 after being fully fed into the crushing space, and thus unable to be crushed. The initially cut plastic material will fall to the high-speed rotating crushing knife 305 by its own gravity, and then be crushed into particles again. The granulated plastic will fall onto the crushing filter 401, and then be screened by the crushing filter 401, so that the unqualified plastic particles with larger particle size are separated. In order to prevent such plastic particles from being retained on the upper end surface of the crushing filter 401 and affecting the screening out of qualified particles, the crushing filter 401 is lifted and slid on the vertical pipe 101, thereby vibrating the particles on the upper end surface of the crushing filter 401, thereby preventing the plastic particles from being retained on the upper end surface of the crushing filter 401. At the same time, the unqualified plastic particles with larger particle size can be shaken again by the rising crushing filter 401 to the crushing knife 305 and crushed again, thereby avoiding excessive accumulation of unqualified plastic particles in the crushing space and ensuring the processing efficiency of the plastic particles.

[0040] like Figure 1-9 As shown:

[0041] A support rod 402 is provided downwardly at the center of the crushing filter screen 401 , a crossbeam 404 is fixed at the lower end of the support rod 402 , and two inclined screen plates 403 are symmetrically fixed on the crossbeam 404 .

[0042] The two inclined screen plates 403 are provided to perform secondary screening of the plastic particles screened out by the crushing filter screen 401, and the two inclined screen plates 403 form an inverted "V" shape, so that the plastic particles with relatively large particle sizes will slide down from both ends along the upper end surfaces of the two inclined screen plates 403, and the particles with smaller particle sizes will pass through the two inclined screen plates 403 and fall below the two inclined screen plates 403, thereby completing the secondary screening of qualified plastic particles;

[0043] At the same time, due to the relatively fixed connection between the crushing filter screen 401 and the two inclined screen plates 403 formed by the support rods 402 and the crossbeams 404, when the crushing filter screen 401 is lifted and vibrated, the two inclined screen plates 403 are lifted and vibrated simultaneously, thereby improving the secondary screening efficiency.

[0044] Further:

[0045] A bottom plate 103 is fixed to the outside of the lower end of the vertical pipe 101 , and supporting side plates 104 are fixed to both sides of the bottom plate 103 . The two inclined screen plates 403 are fitted and slid between the two supporting side plates 104 .

[0046] The two supporting side plates 104 are used to limit the two inclined screen plates 403, thereby forming a secondary screening space, ensuring that the particles on the two inclined screen plates 403 fall from the lower ends of the two inclined screen plates 403. At the same time, the two supporting legs at the lower end of each supporting side plate 104 form a support for the entire device, providing space for collecting smaller particles under the two inclined screen plates 403.

[0047] like Figure 1-9 As shown:

[0048] Two mounting plates 202 are symmetrically fixed on the upper cover 201 , and a power motor for driving the central tube 301 and the central shaft 304 at the same time is installed on one of the mounting plates 202 .

[0049] Among them, a bevel gear I is installed on the upper end of the central shaft 304, and a bevel gear II is installed on the upper end of the central tube 301. The bevel gear I and the bevel gear II are arranged opposite to each other, so that the gears on the output shaft of the power motor can simultaneously drive the two, so that the central shaft 304 drives the crushing knife 305 to rotate, and the central tube 301 drives the cutting knife 303 to rotate along the inner wall of the vertical tube 101, thereby performing preliminary cutting of the plastic strips entering the vertical tube 101.

[0050] Further:

[0051] A transmission shaft 501 which is transmission-connected to the center tube 301 and the center axis 304 is installed on the other mounting plate 202. A turntable 502 is fixed on the transmission shaft 501. An eccentric pin 503 is provided at the eccentric position of the turntable 502. A linkage plate I504 is rotatably mounted on the eccentric pin 503. Both ends of the crossbeam 404 respectively penetrate the two supporting side plates 104, and sealing plates 405 are fixed on both ends of the crossbeam 404 for sealing the long holes on the supporting side plates 104. The lower end of the linkage plate I504 is rotationally connected to one of the sealing plates 405.

[0052] The two bevel gears I and II rotate to form a transmission to the transmission shaft 501, which in turn drives the turntable 502 to rotate, so that the eccentric pin 503 rotates eccentrically, thereby driving the crossbeam 404 to rise and fall reciprocatingly through the linkage plate I504, thereby forming the crushing filter 401 and the two inclined screen plates 403 to rise and fall and vibrate at the same time.

[0053] like Figure 1-9 As shown:

[0054] A through seat 105 is fixed to the lower end of each of the feeding tubes 102 , and a pushing plate 604 is slidably and obliquely penetrated in each of the through seats 105 .

[0055] When the pushing plate 604 is pushed upward and tilted into the feeding tube 102 , after the pushing plate 604 contacts the plastic strip in the feeding tube 102 , it will drive the feeding tube 102 to move toward the vertical tube 101 while rising, thereby pushing the plastic strip in the feeding tube 102 .

[0056] Further:

[0057] A connecting frame 603 is provided at the lower end of each pushing plate 604, a transmission ring 601 is slidably mounted on the vertical tube 101, a plurality of support arm rods 602 are fixed on the transmission ring 601, the plurality of support arm rods 602 are respectively slidably connected with a plurality of connecting frames 603, and a linkage plate II 505 is rotatably connected between the transmission ring 601 and the linkage plate I 504.

[0058] When the linkage plate I 504 is lifted and lowered, the linkage plate II 505 drives the transmission ring 601 to be lifted and lowered on the vertical tube 101, thereby driving the plurality of push plates 604 to be lifted and lowered through the plurality of arm rods 602, thereby automatically pushing the plastic strips in the feeding tube 102;

[0059] Moreover, the processing device can simultaneously drive the rotation of the cutter 303 and the crushing knife 305, the lifting and vibration of the crushing filter 401 and the two inclined screen plates 403, and the reciprocating lifting and lowering of the push plate 604 through a power motor, thereby forming an efficient use of the power motor and ensuring the coordinated operation of the above-mentioned parts.

[0060] Further:

[0061] By providing a spring 605 between the connecting frame 603 and the corresponding through seat 105 , the supporting arm rod 602 and the connecting frame 603 are prevented from getting stuck during sliding.

[0062] Further:

[0063] By evenly providing a plurality of card slots on the upper end of the pushing plate 604 , when the pushing plate 604 pushes the plastic strip, the card slots can clamp the plastic strip laterally to prevent the plastic strip from moving laterally, and at the same time, it is convenient to cooperate with the cutter 303 to complete the cutting.

[0064] like Figure 1-9 As shown:

[0065] The upper end surface edge of the crushing filter 401 is provided with a cone edge, so that the crushed materials gather in the middle of the crushing filter 401, and then when the crushing filter 401 is reciprocated and lifted, the unqualified plastics can fly to the crushing knife 305 better.

Claims

1. A plastic particle processing device, characterized in that: The utility model comprises a vertical tube (101) and a plurality of feeding tubes (102) arranged on the side of the vertical tube (101) for adding plastic strips. The upper end of the vertical tube (101) is fixedly mounted with an upper cover (201). The center of the upper cover (201) is rotatably provided with a central tube (301). The lower end of the central tube (301) is fixed with a disc (302). The disc (302) is fixed with a plurality of cutting knives (303) attached to the inner wall of the vertical tube (101) for cutting the plastic strips at the feeding tube (102). A central shaft (304) is rotatably provided in the central tube (301). A plurality of crushing knives (305) are fixed at the lower end of the central shaft (304). A crushing filter (401) is provided at the lower end of the vertical tube (101) for lifting and sliding. The crushed materials in the vertical tube (101) are vibrated and screened, and the crushed materials are simultaneously made to fly to the crushing knives (305) for crushing.

2. A plastic particle processing device according to claim 1, characterized in that: A support rod (402) is provided downwardly at the center of the crushing filter screen (401), a crossbeam (404) is fixed at the lower end of the support rod (402), and two inclined screen plates (403) are symmetrically fixed on the crossbeam (404).

3. A plastic particle processing device according to claim 2, characterized in that: A bottom plate (103) is fixed to the outside of the lower end of the vertical pipe (101), supporting side plates (104) are fixed to both sides of the bottom plate (103), and the two inclined screen plates (403) are fitted and slid between the two supporting side plates (104).

4. A plastic particle processing device according to claim 3, characterized in that: Two mounting plates (202) are symmetrically fixed on the upper cover (201), and a power motor for simultaneously transmitting the central tube (301) and the central shaft (304) is mounted on one of the mounting plates (202).

5. A plastic particle processing device according to claim 4, characterized in that: A transmission shaft (501) is installed on the other mounting plate (202) and is transmission-connected to the central tube (301) and the central shaft (304). A turntable (502) is fixed on the transmission shaft (501). An eccentric pin (503) is provided at an eccentric position of the turntable (502). A linkage plate I (504) is rotatably mounted on the eccentric pin (503). Both ends of the crossbeam (404) respectively penetrate through two supporting side plates (104), and both ends of the crossbeam (404) are fixed with blocking plates (405) for blocking the long holes on the supporting side plates (104). The lower end of the linkage plate I (504) is rotationally connected to one of the blocking plates (405).

6. A plastic particle processing device according to claim 5, characterized in that: A through seat (105) is fixed at the lower end of each of the feeding tubes (102), and a pushing plate (604) is obliquely and slidably inserted into each through seat (105).

7. A plastic particle processing device according to claim 6, characterized in that: A connecting frame (603) is provided at the lower end of each pushing plate (604), a transmission ring (601) is slidably sleeved on the vertical tube (101), a plurality of support arm rods (602) are fixed on the transmission ring (601), the plurality of support arm rods (602) are respectively slidably connected with the plurality of connecting frames (603), and a linkage plate II (505) is rotatably connected between the transmission ring (601) and the linkage plate I (504).

8. A plastic particle processing device according to claim 7, characterized in that: A spring (605) is provided between the connecting frame (603) and the corresponding through seat (105).

9. A plastic particle processing device according to claim 6, characterized in that: The upper end of the pushing plate (604) is evenly provided with a plurality of slots.

10. The plastic particle processing device according to claim 1, characterized in that: The upper end surface edge of the crushing filter (401) is provided with a conical edge so that the crushed materials gather toward the middle of the crushing filter (401).

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