Plastic particle cleaning device

Abstract

The invention relates to the technical field of plastic particle cleaning, in particular to a plastic particle cleaning device which comprises a cleaning box and further comprises a release assembly, a driving assembly, a connecting shaft piece and an opening and lifting adjusting assembly, the release assembly comprises an inner resistance plate and an outer resistance plate which are arranged inside and outside, and the outer resistance plate and the inner resistance plate are each provided with a discharging hole; the connecting shaft piece comprises an inner shaft and an outer shaft which are arranged inside and outside, and locking or unlocking of the inner shaft and the opening and lifting adjusting assembly can be achieved through the driving assembly. The opening degree and lifting adjusting assembly capable of moving along with the stirring shaft and the plastic particle releasing assembly are arranged, so that batches of plastic particles can be cleaned in batches from small to large, it can be ensured that each batch of particles can be covered with enough cleaning liquid, the cleaning uniformity is ensured, and the cleaning efficiency is improved. And parameters such as cleaning time, stirring speed and cleaning liquid components can be adjusted according to different particle sizes, and extrusion and collision of large and small particles can be avoided through batch cleaning.

Description

Technical Field

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

[0002] In the industrial process of waste plastic recycling, which is extremely environmentally friendly and resource-regenerating, cleaning of plastics after granulation is an extremely critical link. Cleaning of plastics after granulation refers to further cleaning of recycled plastics that have completed preliminary treatment and been processed into granules during the plastic recycling process. This process aims to ensure that the recycled plastic particles meet specific quality standards and remove possible residual impurities and pollutants, such as oil, dyes, label residues, dust, etc., so as to improve their reuse value.

[0003] In the industrial cleaning process of plastic particles, the current common practice is to place a large number of granulated plastic particles together in the cleaning space created by large cleaning equipment and carry out cleaning operations together. This is a conventional means to pursue efficient output and save process time. However, in actual operation, it exposes many difficult problems. The first one is the problem of cleaning uniformity. During cleaning, the particle size of plastic particles is not the same. The small particles will be blocked by large particles. The cleaning liquid is blocked and diverted by large particles, and it is difficult to accurately penetrate into the narrow gaps between small particles, resulting in Some small particles are difficult to clean effectively, which greatly reduces the cleaning effect. Secondly, mechanical cleaning of particles of different sizes in a mixed state (such as friction cleaning) may cause small particles to be excessively squeezed or collided with large particles, causing physical damage, cracks, wear and tear on small particles, or even directly broken into smaller debris. These newly generated impurities and fine powders not only make the purity of the original plastic particles plummet, but are also easily adsorbed on intact particles, causing secondary pollution, making it more difficult to completely remove them later. For this reason, we propose a plastic particle cleaning device. Summary of the invention

[0004] In order to solve the above technical problems, the embodiment of the present application provides a plastic particle cleaning device, including a cleaning box, and also including:

[0005] A release assembly is arranged inside the cleaning box, the release assembly includes an inner resistance plate and an outer resistance plate arranged inside and outside, the outer resistance plate and the inner resistance plate are both provided with drop holes, and the inner resistance plate can move inside the outer resistance plate to adjust the overlap of the drop holes;

[0006] A driving assembly and a connecting shaft, wherein the connecting shaft comprises an inner shaft and an outer shaft arranged inside and outside, the rotating end of the driving assembly is connected to the end of the inner shaft, and the synchronous rotation of the inner shaft and the outer shaft is achieved through the driving assembly;

[0007] An opening and lifting adjustment component is connected to the outer shaft. The inner shaft and the opening and lifting adjustment component can be locked or unlocked through the driving component. When the inner shaft and the opening and lifting adjustment component are locked, the opening and lifting adjustment component can be driven to move by the rotation of the inner shaft, so that the rise of the release component and the increase of the opening of the blanking hole can be adjusted synchronously.

[0008] The outer resistance plate is evenly provided with a first leakage hole, the inner resistance plate is evenly provided with a second leakage hole, and the side wall of the outer resistance plate is fixed with a vertical first rack, and the front and rear walls of the inner resistance plate are fixed with a horizontal second rack, and a guide rod is fixed to a side of the first rack facing the inner wall of the cleaning box, and a vertical guide groove is provided on the inner wall of the cleaning box, and the guide rod is slidably fitted in the guide groove.

[0009] In some embodiments, a through opening is provided on the outer shaft, a docking tooth is fixed to the outer wall of the inner shaft, a guide strip is fixed to the outer wall of the inner shaft near the end, and a groove matching the guide strip is provided on the inner wall of the outer shaft near the end.

[0010] In some embodiments, the opening and lifting adjustment assembly includes a first pulley fixed to the outside of the outer shaft and a second pulley rotatably arranged on the inner wall of the cleaning box, a first belt is arranged between the first pulley and the second pulley, a gear part is installed at the end of the second pulley, a convex ring is fixed to one side of the first pulley, and a plurality of docking tooth grooves are arranged on the inner wall of the convex ring in a circular array, and the corresponding docking teeth can be embedded in any docking tooth groove.

[0011] In some embodiments, the gear member includes a first gear, the first gear is fixed to an end of the second pulley, and the first gear is meshingly connected to a corresponding first rack.

[0012] In some embodiments, the gear member includes a first gear and a second gear meshing with each other, the first gear is fixed to an end of the second pulley, and the second gear is meshingly connected to a corresponding first rack.

[0013] In some embodiments, the opening and lifting adjustment assembly also includes a third pulley, a tensioning pulley and a fourth pulley, the third pulley is installed at the end of the gear part, the tensioning pulley is rotatably installed on the inner wall of the cleaning box, one side of the fourth pulley is equipped with a third gear through a connecting rod, the third gear is rotatably installed on the lower end surface of the outer resistance plate, and the third gear is meshed with a fourth gear, the fourth gear is meshed with the corresponding second rack, and the third pulley, the tensioning pulley and the fourth pulley are commonly provided with a second belt.

[0014] In some embodiments, the driving assembly includes a mounting base and an L-shaped plate slidably arranged on the mounting base, a motor having an axis connected to an inner axis is mounted on the L-shaped plate, and a first telescopic rod is also installed between the upper end of the outer wall of the L-shaped plate and the outer wall of the cleaning box.

[0015] In some embodiments, a plastic discharge assembly is also included, and the plastic discharge assembly includes a discharge frame connected to the bottom end of the side wall of the cleaning box, the outer end of the discharge frame is connected to a receiving frame, the bottom end of the side wall of the receiving frame is connected to a drain pipe, and the upper end of the side wall of the cleaning box is connected to a liquid inlet pipe. A vertical baffle is provided in the discharge frame, and a second telescopic rod is installed between the top of the baffle and the cleaning box.

[0016] In some embodiments, a guide groove is formed on the upper end surface of the mounting base plate, and a guide block that slides in the guide groove is fixed to the bottom end of the L-shaped plate.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. Improve cleaning quality and reduce particle damage: Set the opening and lifting adjustment components and plastic particle release components that can move with the stirring shaft, so that batches of plastic particles can be cleaned in batches from small to large. Cleaning in batches, especially in the order of small to large, can ensure that each batch of particles can be sufficiently covered with cleaning liquid to ensure the uniformity of cleaning, and can adjust the cleaning time, stirring speed and cleaning liquid composition parameters according to different particle sizes. Cleaning in batches can avoid the extrusion and collision of large and small particles, prevent the generation of new impurities or fine powder, and improve the quality of particles.

[0019] 2. Reduce equipment costs and energy consumption: The opening and lifting adjustment components and the release components are linked with the existing stirring shaft, and no additional screening and guiding structures are required, which can save a lot of money in the equipment manufacturing process; no separate power source is required to drive, avoiding these additional energy consumption, which helps to reduce operating costs.

[0020] 3. Prevent secondary pollution: Additional screening and guiding structures may introduce new pollution sources. Dividing the space can reduce the chance of particles coming into contact with external pollution sources, keep the cleaning process clean, and improve the cleaning effect.

[0021] 4. Adjustable motion mode: The connecting shaft is composed of an inner shaft and an outer shaft arranged inside and outside, and by arranging docking teeth and docking tooth grooves, etc., the rotation of the inner shaft and the outer shaft can be realized, or the inner shaft and the outer shaft can drive the first pulley to rotate together, so that the height of the release component and the opening of the blanking hole can be adjusted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another perspective;

[0024] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the structure from another perspective;

[0026] Figure 5 It is a schematic diagram of the structure of the driving assembly, the connecting shaft and the opening and lifting adjustment assembly of the present invention in a combined state;

[0027] Figure 6 It is a schematic diagram of the structure of the release assembly of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the opening and lifting adjustment assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the drive assembly and the connecting shaft member of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the connecting shaft member of the present invention in a disassembled state;

[0031] Fig.10 It is a schematic diagram of the structure of the release assembly of the present invention in a disassembled state;

[0032] Fig.11 It is a structural schematic diagram of the plastic discharge assembly of the present invention;

[0033] Fig.12 For the present invention Figure 7 A in the figure is an enlarged structural diagram.

[0034] In the figure: 1-cleaning box; 101-guide chute;

[0035] 2-driving assembly; 21-motor; 22-mounting base plate; 221-guide groove; 23-L-shaped plate; 24-first telescopic rod;

[0036] 3-plastic discharge assembly; 31-discharge frame; 32-receiving frame; 33-drain pipe; 34-second telescopic rod; 35-baffle;

[0037] 4-Liquid inlet pipe;

[0038] 5-release assembly; 51-external resistance plate; 511-first leakage hole; 52-first rack; 53-guide rod; 54-internal resistance plate; 541-second leakage hole; 55-second rack;

[0039] 6-connecting shaft; 61-external shaft; 611-through port; 62-inner shaft; 621-guide strip; 622-butt gear;

[0040] 7-opening and lifting adjustment assembly; 71-first pulley; 711-first belt; 712-convex ring; 7121-jointing tooth groove; 72-second pulley; 73-gear member; 731-first gear; 732-second gear; 74-third pulley; 75-tensioning wheel; 76-fourth pulley; 77-third gear; 78-fourth gear; 79-second belt. DETAILED DESCRIPTION

[0041] 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.

[0042] Example 1: Please refer to Figure 1-Figure 12As shown, the present invention provides a technical solution: a plastic particle cleaning device, comprising a cleaning box 1, a feeding hopper is provided at the top of the cleaning box 1, and the plastic particles to be cleaned are guided into the cleaning box 1 through the feeding hopper. An observation window can also be provided on the outer wall of the cleaning box 1. The observation window can be made of high-strength, wear-resistant, and chemically resistant organic glass material, which can minimize the refraction and scattering of light, allowing the operator to clearly observe the cleaning situation inside the cleaning box 1 through it, and is also equipped with a controller (not shown), and also includes a drive component 2, a plastic discharge component The release assembly 5 is provided inside the cleaning box 1, and the release assembly 5 includes an inner resistance plate 54 and an outer resistance plate 51 arranged inside and outside. The outer resistance plate 51 and the inner resistance plate 54 are both provided with drop holes, wherein the outer resistance plate 51 is evenly provided with a first leakage hole 511, and the inner resistance plate 54 is evenly provided with a second leakage hole 541. The sizes of the first leakage hole 511 and the second leakage hole 541 are preferably the same. The inner resistance plate 54 can move inside the outer resistance plate 51 to adjust the overlap of the drop holes of the two. The connecting shaft 6 comprises an inner shaft 62 and an outer shaft 61 arranged inside and outside, the inner end of the outer shaft 61 is connected to the inner wall of the cleaning box 1 through a bearing seat, the driving assembly 2 is composed of a rotating part and a telescopic part, the rotating end of the driving assembly 2 is connected to the end of the inner shaft 62, and the synchronous rotation of the inner shaft 62 and the outer shaft 61 is realized by the driving assembly 2, the opening and lifting adjustment assembly 7 is connected to the outer shaft 61, and the inner shaft 62 and the opening and lifting adjustment assembly 7 can be locked or unlocked by the driving assembly 2. When the inner shaft 62 and the opening and lifting adjustment assembly 7 are locked, the rotation of the inner shaft 62 is used to adjust the opening and lifting adjustment assembly 7. The movement can drive the opening and lifting adjustment component 7 to move, so that the rise of the release component 5 and the opening of the drop hole can be adjusted synchronously. When the release component 5 rises as a whole, the opening and lifting adjustment component 7 can also drive the inner resistance plate 54 to move in the outer resistance plate 51 to increase the overlap between the first leakage hole 511 and the second leakage hole 541, thereby increasing the opening to allow plastic particles with larger particle sizes to fall. The plastic discharge component 3 is used to discharge plastic particles of similar particle sizes after cleaning is completed to avoid mixing with plastic particles with larger particle sizes discharged subsequently.

[0043] Among them, see Figure 5As shown, the driving assembly 2 includes a mounting base plate 22 and an L-shaped plate 23 slidably provided on the mounting base plate 22, a motor 21 whose shaft is connected to the inner shaft 62 is installed on the L-shaped plate 23, and a first telescopic rod 24 is also installed between the upper end of the outer wall of the L-shaped plate 23 and the outer wall of the cleaning box 1. The first telescopic rod 24 is an electric telescopic rod. When the motor 21 is started, the output end of the motor 21 can be used to drive the inner shaft 62 to rotate, thereby driving the inner shaft 62 and the outer shaft 61 to rotate synchronously. The L-shaped plate 23 can be driven to move by the first telescopic rod 24 to adjust the movement of the inner shaft 62 in the outer shaft 61, and stirring blades are equidistantly provided on the outside of the outer shaft 61, and preferably two stirring blades are relatively arranged at each location.

[0044] Among them, see Figure 6 and Fig.10 As shown, a vertical first rack 52 is fixed to the side wall of the outer resistance plate 51, and a horizontal second rack 55 is fixed to the front and rear walls of the inner resistance plate 54. A guide rod 53 is fixed to the side of the first rack 52 facing the inner wall of the cleaning box 1. A vertical guide groove 101 is provided on the inner wall of the cleaning box 1. The guide bar 621 slides in the guide groove 101. The sliding of the guide bar 621 in the guide groove 101 ensures the stability and accuracy of the lifting and lowering action of the release component 5 when the release component 5 is lifted as a whole, thereby greatly reducing the risk of mechanical failure caused by shaking and misalignment.

[0045] See also Fig. 9 As shown, a through opening 611 is provided on the outer shaft 61, a docking tooth 622 is fixed on the outer wall of the inner shaft 62, and a guide bar 621 is fixed on the outer wall of the inner shaft 62 near the end, and a groove matching the guide bar 621 is provided on the inner wall of the outer shaft 61 near the end. The inner shaft 62 can be extended and retracted in the outer shaft 61. When extending and retracting, the guide bar 621 moves linearly along the groove, which can prevent the inner shaft 62 from rotating independently and ensure the relative accuracy of the position of the docking tooth 622.

[0046] See also Figure 5 and Figure 7-Figure 9 As shown, the opening and lifting adjustment components 7 are preferably provided with two groups, and the two groups of opening and lifting adjustment components 7 are located on both sides of the diagonal, so as to realize the force lifting of the release component 5 from both sides to ensure the uniform lifting, and the opening and lifting adjustment components 7 include a first pulley 71 fixed to the outside of the outer shaft 61 and a second pulley 72 rotatably arranged on the inner wall of the cleaning box 1, a first belt 711 is arranged between the first pulley 71 and the second pulley 72, a gear part 73 is installed at the end of the second pulley 72, a convex ring 712 is fixed to one side of the first pulley 71, and a plurality of docking tooth grooves 7121 are arranged on the inner wall of the convex ring 712 in a ring array, and the corresponding docking teeth 622 can be embedded in any docking tooth groove 7121.

[0047] The opening and lifting adjustment assembly 7 also includes a third pulley 74, a tensioning wheel 75 and a fourth pulley 76. The third pulley 74 is mounted on the end of the gear member 73, and the tensioning wheel 75 is rotatably mounted on the inner wall of the cleaning box 1. A third gear 77 is mounted on one side of the fourth pulley 76 through a connecting rod. The third gear 77 is rotatably mounted on the lower end surface of the outer resistance plate 51, and the third gear 77 is meshedly connected with the fourth gear 78. The third gear 77 and the fourth gear 78 rise and fall synchronously with the outer resistance plate 51, and the fourth gear 78 is meshedly connected to the corresponding second rack 55. The third pulley 74, the tensioning wheel 75 and the fourth pulley 76 are jointly provided with a second belt 79, and the tensioning wheel 75 plays the role of tensioning the second belt 79. In the initial state, the tensioning wheel 75 is in a state of pulling up the second belt 79. As the third gear 77 rises, the second belt 79 always fits the tensioning wheel 75 for transmission. By setting the tensioning wheel 75, the tensioning state of the second belt 79 can be maintained during the rising process of the third gear 77.

[0048] Through the above, during normal cleaning, the plastic particles to be cleaned are added into the cleaning box 1. In the initial state, the first leakage hole 511 and the second leakage hole 541 have a small overlap. During stirring, the outer shaft 61 drives the stirring blades to stir for cleaning. When it is necessary to release the next batch of plastic particles with a larger particle size, at this time, the first telescopic rod 24 can be used to make the docking tooth 622 embedded in the docking tooth groove 7121, and then with the rotation of the outer shaft 61, the first pulley 71 can be driven to rotate, and the second pulley 72 is driven to rotate through the first belt 711, thereby driving the gear member 73 to rotate, so that the first rack 52 rises and drives the outer resistance plate 51 to rise. At the same time, the third pulley 74 rotates to drive the second belt 79 to transmit, and then drives the fourth pulley 76 to rotate, so that the third gear 77 rotates, thereby driving the meshed fourth gear 78 to rotate, so as to use the fourth gear 78 to drive the meshed second rack 55 to move, so as to achieve synchronous movement of the inner resistance plate 54 in the outer resistance plate 51, thereby achieving an increase in the blanking opening.

[0049] Secondly, by designing the transmission ratio of the gear member 73, the third gear 77 and the fourth gear 78 according to actual needs, proportional control of the lifting and opening adjustment can be achieved. For example, the transmission ratio of the gear member 73, the third gear 77 and the fourth gear 78 is 2:2:1. At this time, when the gear member 73 rotates one circle, the outer resistance plate 51 rises to a height of one circle of the gear member 73, the third gear 77 also rotates one circle, and the fourth gear 78 rotates half a circle, so that the inner resistance plate 54 moves the length of half a circle.

[0050] In addition, the ends of the second pulley 72, the gear member 73, the tensioning wheel 75, the third gear 77 and the fourth gear 78 are all mounted through a bearing seat so that they can rotate.

[0051] Among them, see Figure 5As shown, the gear member 73 includes a first gear 731, which is fixed to the end of the second pulley 72, and the first gear 731 is meshed and connected to the corresponding first rack 52. This gear member 73 corresponds to a set of opening and lifting adjustment components 7. At this time, only one first gear 731 is needed to realize the lifting and lowering of one side of the release component 5.

[0052] See also Figure 5 As shown, the gear member 73 includes a first gear 731 and a second gear 732 that are meshed with each other. The first gear 731 is fixed to the end of the second pulley 72, and the second gear 732 is meshed and connected to the corresponding first rack 52. This gear member 73 corresponds to another set of opening and lifting adjustment components 7. At this time, the first gear 731 and the second gear 732 need to cooperate to achieve synchronous operation with the opening and lifting adjustment component 7 on the other side to ensure the production lifting of the release component 5.

[0053] See also Figure 2 as well as Fig.11 As shown, the plastic discharge assembly 3 includes a discharge frame 31 connected to the bottom end of the side wall of the cleaning box 1, the outer end of the discharge frame 31 is connected to a receiving frame 32, the bottom end of the side wall of the receiving frame 32 is connected to a discharge pipe 33, the upper end of the side wall of the cleaning box 1 is connected to a liquid inlet pipe 4, the discharge pipe 33 and the liquid inlet pipe 4 are connected through a water pump, a vertical baffle 35 is provided in the discharge frame 31, and a second telescopic rod 34 is installed between the top of the baffle 35 and the cleaning box 1. After a batch of plastic particles of a certain particle size are cleaned, the baffle 35 can be moved up by the second telescopic rod 34 to open the discharge frame 31, and the cleaning liquid and the cleaned plastic particles enter the receiving frame 32 together. A filter is provided in the containing frame 32 to block the plastic particles. The plastic particles remain in the containing frame 32, and the cleaning liquid is sent into the drain pipe 33 through the drain pipe 33 to return to the cleaning box 1. After a batch of plastic particles of a certain particle size are discharged, the plastic particles on the upper end surface of the outer resistance plate 51 can continue to be released to allow plastic particles of a larger particle size to fall. This cycle can realize automatic batch cleaning of plastic particles according to particle size, avoid smaller plastic particles from being blocked between large particles, improve the cleaning effect, prevent small particles from being physically damaged by excessive squeezing or collision from large particles, and avoid the generation of new impurities or fine powder.

[0054] Example 2: Please refer to Figure 5 As shown, this embodiment is an extension of Embodiment 1: specifically, a guide groove 221 is provided on the upper end surface of the mounting base plate 22, and a guide block slidably fitted in the guide groove 221 is fixed to the bottom end of the L-shaped plate 23. The guide block slides in the guide groove 221, so that when the L-shaped plate 23 is adjusted, the linearity of its movement is ensured to avoid the inner shaft 62 from being skewed.

[0055] 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.

[0056] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A plastic particle cleaning device, comprising a cleaning box (1), characterized in that: Also included are: A release assembly (5) is arranged inside the cleaning box (1), the release assembly (5) comprising an inner resistance plate (54) and an outer resistance plate (51) arranged inside and outside, the outer resistance plate (51) and the inner resistance plate (54) are both provided with drop holes, and the inner resistance plate (54) can move inside the outer resistance plate (51) to adjust the overlap of the drop holes; A driving assembly (2) and a connecting shaft (6), wherein the connecting shaft (6) comprises an inner shaft (62) and an outer shaft (61) arranged inside and outside, the rotating end of the driving assembly (2) is connected to the end of the inner shaft (62), and the driving assembly (2) realizes synchronous rotation of the inner shaft (62) and the outer shaft (61); An opening and lifting adjustment component (7), wherein the opening and lifting adjustment component (7) is connected to an outer shaft (61), and the inner shaft (62) and the opening and lifting adjustment component (7) can be locked or unlocked through the driving component (2). When the inner shaft (62) and the opening and lifting adjustment component (7) are locked, the rotation of the inner shaft (62) can drive the opening and lifting adjustment component (7) to move, so that the release component (5) rises and the opening of the blanking hole increases for synchronous adjustment.

2. The plastic particle cleaning device according to claim 1, characterized in that: The outer resistance plate (51) is evenly provided with first leakage holes (511), the inner resistance plate (54) is evenly provided with second leakage holes (541), and a vertical first rack (52) is fixed to the side wall of the inner resistance plate (54), and a horizontal second rack (55) is fixed to the front and rear walls of the inner resistance plate (54), and a guide rod (53) is fixed to the side of the first rack (52) facing the inner wall of the cleaning box (1). The inner wall of the cleaning box (1) is provided with a vertical guide groove (101), and the guide rod (53) is slidably matched with the guide groove (101).

3. The plastic particle cleaning device according to claim 1, characterized in that: The outer shaft (61) is provided with a through opening (611), the outer wall of the inner shaft (62) is fixed with a docking tooth (622), and a guide strip (621) is fixed to the outer wall of the inner shaft (62) near the end, and the inner wall of the outer shaft (61) is provided with a groove matching the guide strip (621) near the end.

4. The plastic particle cleaning device according to claim 3, characterized in that: The opening and lifting adjustment assembly (7) comprises a first pulley (71) fixed to the outside of the outer shaft (61) and a second pulley (72) rotatably arranged on the inner wall of the cleaning box (1); a first belt (711) is arranged between the first pulley (71) and the second pulley (72); a gear member (73) is installed at the end of the second pulley (72); a convex ring (712) is fixed to one side of the first pulley (71); a plurality of mating tooth grooves (7121) are arranged on the inner wall of the convex ring (712) in a ring array; the corresponding mating teeth (622) can be embedded in any mating tooth groove (7121).

5. The plastic particle cleaning device according to claim 4, characterized in that: The opening and lifting adjustment assembly (7) also includes a third pulley (74), a tensioning wheel (75) and a fourth pulley (76). The third pulley (74) is mounted on the end of the gear member (73). The tensioning wheel (75) is rotatably mounted on the inner wall of the cleaning box (1). One side of the fourth pulley (76) is mounted with a third gear (77) through a connecting rod. The third gear (77) is rotatably mounted on the lower end surface of the outer resistance plate (51). The third gear (77) is meshedly connected with a fourth gear (78). The fourth gear (78) is meshedly connected to the corresponding second rack (55). The third pulley (74), the tensioning wheel (75) and the fourth pulley (76) are commonly provided with a second belt (79).

6. The plastic particle cleaning device according to claim 5, characterized in that: The gear member (73) comprises a first gear (731), the first gear (731) is fixed to the end of the second pulley (72), and the first gear (731) is meshedly connected to the corresponding first rack (52).

7. The plastic particle cleaning device according to claim 5, characterized in that: The gear member (73) comprises a first gear (731) and a second gear (732) meshing with each other, wherein the first gear (731) is fixed to the end of the second pulley (72), and the second gear (732) is meshingly connected to the corresponding first rack (52).

8. The plastic particle cleaning device according to claim 1, characterized in that: The driving assembly (2) comprises a mounting base plate (22) and an L-shaped plate (23) slidably mounted on the mounting base plate (22); a motor (21) having a shaft portion connected to an inner shaft (62) is mounted on the L-shaped plate (23); and a first telescopic rod (24) is further mounted between the upper end of the outer wall of the L-shaped plate (23) and the outer wall of the cleaning box (1).

9. The plastic particle cleaning device according to claim 1, characterized in that: The invention also comprises a plastic discharge assembly (3), the plastic discharge assembly (3) comprising a discharge frame (31) connected to the bottom end of the side wall of the cleaning box (1), the outer end of the discharge frame (31) being connected to a receiving frame (32), the bottom end of the side wall of the receiving frame (32) being connected to a liquid discharge pipe (33), the upper end of the side wall of the cleaning box (1) being connected to a liquid inlet pipe (4), a vertical baffle (35) being arranged inside the discharge frame (31), and a second telescopic rod (34) being installed between the top end of the baffle (35) and the cleaning box (1).

10. The plastic particle cleaning device according to claim 8, characterized in that: The upper end surface of the installation base plate (22) is provided with a guide groove (221), and the bottom end of the L-shaped plate (23) is fixed with a guide block that is slidably matched with the guide groove (221).

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