Multi-stage cleaning equipment for plastic bottle pieces

Abstract

The invention relates to the technical field of cleaning equipment, and discloses multi-stage cleaning equipment for plastic bottle pieces. Comprising a cleaning frame, the top of the cleaning frame is provided with a vibration transmission part, the vibration transmission part is in transmission connection with a cleaning shaft and a vibration cleaning frame, the cleaning shaft is rotationally sleeved with a cleaning net cylinder, the cleaning net cylinder is rotationally connected with the vibration cleaning frame, the bottom end of the cleaning net cylinder is provided with a feeding assembly, and the vibration cleaning frame is provided with a first differential part; the cleaning net cylinder is in transmission connection with the cleaning shaft through a first differential part, and a spiral cleaning net piece rotationally attached to the cleaning net cylinder is installed on the cleaning shaft. According to the plastic bottle piece cleaning device, cleaning spray holes are formed, so that to-be-cleaned plastic bottle pieces on a spiral cleaning mesh are subjected to first-stage high-pressure scouring oscillation cleaning, the plastic bottle pieces lifted by the spiral cleaning mesh flow into a cleaning circular seam through a discharging pipe, and during cleaning, a rotary brush cylinder a and a rotary brush cylinder b rotate at a differential speed; therefore, when the plastic bottle pieces flow through the cleaning circular seam, the plastic bottle pieces can be subjected to differential grinding type secondary cleaning through the rubber soft bristles.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and more particularly to a multi-stage cleaning equipment for plastic bottle flakes. Background Art

[0002] After some waste plastic packaging enters the environment, it is difficult to degrade, causing long-term and deep ecological and environmental problems. For example, waste plastic packaging mixed in the soil affects the absorption of nutrients and water by crops, which will lead to reduced crop yields; waste plastic packaging abandoned on land or in water is swallowed by animals as food, causing animal death; therefore, plastic bottles need to be recycled, and during the recycling process, plastic bottles will be crushed into plastic bottle flakes.

[0003] In order to improve the quality of plastic bottle flakes, they are generally cleaned and filtered. In the prior art, the patent document with publication number CN220219293U discloses a multi-stage cleaning device for recycled plastic bottle flakes, including a multi-stage cleaning box with a rinsing rack installed inside, and a plurality of unit cleaning pipes are installed on the multi-stage cleaning box, and the plurality of unit cleaning pipes and the plurality of unit cleaning pipes form a multi-stage cleaning system; a filter cartridge is installed inside the unit cleaning pipe, and a screw dragon is inserted inside the filter cartridge. The above device installs the plastic bottle flakes into the filter cartridge. During the periodic reciprocating movement of the plastic bottle flakes inside the filter cartridge, the inner support frame and the telescopic adjustment rod can be used to move the plastic bottle flakes accumulated at the edge of the filter cartridge, combined with the rinsing rack installed inside the multi-stage cleaning box, so that the plastic bottle flakes are fully contacted with the cleaning liquid, and the impurities are easier to separate from the plastic bottle flakes. However, the above device is not convenient for performing a first-level high-pressure flushing and oscillating cleaning and a differential grinding type second-level cleaning on the plastic bottle flakes to be cleaned, and then it is not convenient to improve the cleaning effect and cleaning efficiency of the plastic bottle flakes. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a multi-stage cleaning device for plastic bottle flakes. In the present invention, when the spiral cleaning mesh lifts the plastic bottle flakes to be cleaned, the cleaning spray holes are set to perform a first-level high-pressure flushing and oscillation cleaning on the plastic bottle flakes to be cleaned on the spiral cleaning mesh. The plastic bottle flakes lifted by the spiral cleaning mesh flow into the cleaning annular gap through a discharge pipe. During cleaning, the rotary brush cylinder a and the rotary brush cylinder b rotate at a differential speed, so that the plastic bottle flakes can be subjected to a differential grinding type second-level cleaning by rubber soft bristles when flowing through the cleaning annular gap. After the second-level grinding cleaning, the cleaned plastic bottle flakes are discharged through a discharge box. By achieving a multi-stage cleaning effect, the cleaning effect of the device is effectively guaranteed.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a multi-stage cleaning device for plastic bottle flakes, comprising a cleaning frame, a vibration transmission component is installed on the top of the cleaning frame, a cleaning shaft and a vibration frame are connected in a transmission manner on the vibration transmission component, a cleaning net cylinder is rotatably sleeved on the cleaning shaft, the cleaning net cylinder is rotatably connected to the vibration frame, a feeding assembly is provided at the bottom end of the cleaning net cylinder, a first differential is installed on the vibration frame, the cleaning net cylinder is transmission-connected to the cleaning shaft through the first differential, a spiral cleaning net sheet that rotatably fits with the cleaning net cylinder is installed on the cleaning shaft, a material guide cylinder is installed on the bottom surface of the vibration frame, a material cover is fixedly installed on the bottom end of the material guide cylinder, a group of discharge pipes are connected between the material guide cylinder and the material cover, and the cleaning net cylinder and the material cover are connected to the cleaning net cylinder. A group of discharge ports are provided at the position inside the discharge pipe, the bottom end of the guide cylinder is rotatably connected with a rotary brush cylinder a, and the rotary brush cylinder a is transmission-connected to the cleaning net cylinder through a second differential member, and a spiral filter mesh fitted with the rotary brush cylinder a is fixedly mounted on the cleaning net cylinder, and a dirt discharge box matched with the spiral filter mesh is fixedly arranged on the guide cylinder, and a dirt discharge box matched with the spiral filter mesh is rotatably connected to the cleaning rack at a position corresponding to the outer side of the rotary brush cylinder a, and the rotary brush cylinder b is driven by a vibration transmission component, and a cleaning annular gap for cleaning plastic bottle pieces is provided between the rotary brush cylinder a and the rotary brush cylinder b, and a discharge box is fixedly mounted on the cleaning rack, and the discharge box is rotatably connected with the cleaning annular gap, and a cleaning liquid supply module matched with the cleaning shaft, the discharge box and the cleaning annular gap is installed on the cleaning rack.

[0006] As a preferred technical solution of the present invention, the vibration transmission component includes a servo motor fixed on the cleaning frame and a first gear shaft, a second gear shaft and a third gear shaft rotatably connected to the cleaning frame, the output shaft end of the servo motor is transmission-connected to the first gear shaft, the second gear shaft and the cleaning shaft are both driven by the first gear shaft, the third gear shaft is driven by the second gear shaft, a half-face gear is fixedly installed on the second gear shaft, a passive gear plate vertically arranged and transmission-connected to the half-face gear is fixedly installed on the vibration cleaning frame, two T-shaped suspension rods are installed on the vibration cleaning frame, the two T-shaped suspension rods are both slidably connected to the cleaning frame, springs are sleeved on the two T-shaped suspension rods and at positions corresponding to the top of the cleaning frame, linkage gears are fixedly installed on the third gear shaft and the rotary brush cylinder b, and the two linkage gears are meshed with each other.

[0007] As a preferred technical solution of the present invention, a transmission guide groove with an opening at the bottom is fixedly opened inside the first gear shaft, a driven section slidingly connected to the transmission guide groove is fixedly arranged on the cleaning shaft, and the cross-sections of the driven section and the transmission guide groove are both regular polygons, a first bevel gear is installed on the first gear shaft and the tail end of the second gear shaft, and the two first bevel gears are meshed with each other, and a second bevel gear is fixedly installed on the front end of the second gear shaft and the top end of the third gear shaft, and the two second bevel gears are meshed with each other.

[0008] As a preferred technical solution of the present invention, the spiral cleaning mesh is evenly distributed with vertically arranged liquid permeable holes, the cleaning mesh cylinder is provided with multiple groups of sewage guide holes distributed in a circular array, the spiral sewage filter mesh is evenly distributed with vertically arranged sewage filter holes, the axis of the sewage guide hole is perpendicular to the axis of the liquid permeable hole, the radius of the sewage filter hole is 0.5 times the radius of the liquid permeable hole, and the aperture of the sewage guide hole is twice the aperture of the liquid permeable hole.

[0009] As a preferred technical solution of the present invention, the first differential member includes a differential shaft a rotatably connected to the vibrating frame, a differential bevel gear a is fixedly mounted on the differential shaft a, upper bevel gears are fixedly mounted on the cleaning shaft and the cleaning net cylinder, the two upper bevel gears are both transmission-connected to the differential bevel gear a, and the two upper bevel gears are symmetrically arranged with the horizontal plane where the axis of the differential bevel gear a is located as the axis.

[0010] As a preferred technical solution of the present invention, the outer wall of the rotary brush cylinder a and the inner wall of the rotary brush cylinder b are evenly distributed with rubber soft bristles.

[0011] As a preferred technical solution of the present invention, the feed assembly includes a feed cylinder rotatably connected to the bottom end of the cleaning mesh cylinder, the spiral cleaning mesh is rotatably fitted with the feed cylinder, the feed cylinder is slidably connected to the cleaning rack, the feed cylinder is fixedly connected with a feed nozzle, and a drain valve is installed on the feed cylinder and at a position corresponding to the bottom of the spiral cleaning mesh.

[0012] As a preferred technical solution of the present invention, the cleaning liquid supply module includes a liquid storage tank and a cleaning pump fixed on the cleaning frame, a cleaning flow channel is fixedly opened at the axial position of the cleaning shaft, a plurality of groups of regularly distributed cleaning spray holes connected to the cleaning flow channel are opened on the cleaning shaft, the liquid outlet port of the cleaning pump is connected to the cleaning flow channel through a pump liquid pipe, a liquid accumulation cylinder is fixedly installed at the bottom of the discharge box and at a position corresponding to the position below the cleaning annular seam, the bottom surface of the discharge box is evenly distributed with filtrate holes connected to the inner cavity of the liquid accumulation cylinder, the inner diameter of the filtrate holes is the same as the inner diameter of the liquid permeable holes, a liquid return hose is connected between the liquid accumulation cylinder and the liquid storage tank, and the liquid intake port of the cleaning pump is fixedly connected to a drainage pipe, and the drainage pipe extends to the interior of the liquid storage tank.

[0013] As a preferred technical solution of the present invention, the cleaning liquid supply module also includes a diverter hose fixedly connected to the pump liquid pipe, and a liquid injection pipe is installed between the diverter hose and each feed pipe.

[0014] As a preferred technical solution of the present invention, the second differential member includes a differential shaft b rotatably connected to the feed cylinder, and a differential bevel gear b is installed on the differential shaft b. The bottoms of the cleaning mesh cylinder and the rotary brush cylinder a are both installed with lower bevel gears, and the two lower bevel gears are both transmission connected to the differential bevel gear b. The two lower bevel gears are symmetrically arranged with the horizontal plane where the axis of the differential shaft b is located as the axis.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, when the spiral cleaning mesh lifts the plastic bottle chips to be cleaned, the cleaning spray holes are set to perform a first-level high-pressure flushing and oscillating cleaning on the plastic bottle chips to be cleaned on the spiral cleaning mesh. The plastic bottle chips lifted by the spiral cleaning mesh flow into the cleaning annular gap through the discharge pipe. During cleaning, the rotary brush cylinder a and the rotary brush cylinder b rotate at a differential speed, so that the plastic bottle chips can be subjected to a differential grinding type second-level cleaning by the rubber soft bristles when flowing through the cleaning annular gap. After the second-level grinding cleaning, the cleaned plastic bottle chips are discharged through the discharge box. The cleaning effect of the device is effectively guaranteed by achieving a multi-stage cleaning effect. During cleaning, the rotary brush cylinder b and the spiral cleaning mesh vibrate within a set stroke, thereby effectively improving the cleaning intensity and cleaning effect of the plastic bottle chips during double-stage cleaning.

[0017] 2. During cleaning, the servo motor outputs the speed at a set power. After the servo motor outputs the speed, the lifting directions of the spiral filter mesh and the spiral cleaning mesh are both upward. The spiral cleaning mesh is used to lift the plastic bottle pieces to be cleaned upward, and the spiral filter mesh is used to filter out impurities in the cleaning liquid, thereby ensuring that the cleaning water is free of impurities. In addition, the vertical structure of the device can effectively reduce the occupied volume of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a multi-stage cleaning device for plastic bottle flakes of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of;

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0022] Figure 5 For the present invention Figure 3 A schematic diagram of the local enlarged structure at C in the middle;

[0023] Figure 6 For the present invention Figure 3 A schematic diagram of the local enlarged structure at D in the middle;

[0024] Figure 7 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point E in the middle.

[0025] In the figure: 1, cleaning rack; 2, cleaning shaft; 3, vibrating rack; 4, cleaning net cylinder; 5, spiral cleaning mesh; 6, material guide cylinder; 7, material cover; 8, material discharge pipe; 9, material discharge port; 10, rotary brush cylinder a; 11, spiral filter mesh; 12, sewage discharge box; 13, rotary brush cylinder b; 14, discharge box; 15, servo motor; 16, first gear shaft; 17, second gear shaft; 18, third gear shaft; 19, half-face gear; 20, passive gear plate; 21. T-shaped suspension rod; 22. Spring; 23. Linkage gear; 24. Liquid permeable hole; 25. Sewage guide hole; 26. Sewage filter hole; 27. Differential shaft a; 28. Rubber soft brush bristles; 29. ​​Feed barrel; 30. Feed nozzle; 31. Liquid storage tank; 32. Cleaning pump; 33. Cleaning flow channel; 34. Pump liquid pipe; 35. Liquid return hose; 36. Liquid storage barrel; 37. Filter hole; 38. Diverter hose; 39. Differential shaft b; 40. Cleaning spray hole. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figures 1 to 7 As shown, the present invention provides a multi-stage cleaning device for plastic bottle flakes, comprising a cleaning frame 1, a vibration transmission component is installed on the top of the cleaning frame 1, a cleaning shaft 2 and a vibration cleaning frame 3 are transmission-connected to the vibration transmission component, and a cleaning net cylinder 4 is rotatably sleeved on the cleaning shaft 2;

[0028] The cleaning net cylinder 4 is provided with a plurality of groups of dirt guide holes 25 distributed in a circumferential array;

[0029] The cleaning net cylinder 4 is rotatably connected to the vibrating frame 3;

[0030] The vibration transmission component includes a servo motor 15 fixed on the cleaning rack 1 and a first gear shaft 16, a second gear shaft 17 and a third gear shaft 18 rotatably connected to the cleaning rack 1, and the output shaft end of the servo motor 15 is transmission-connected to the first gear shaft 16;

[0031] The second gear shaft 17 and the cleaning shaft 2 are both driven by the first gear shaft 16, and the third gear shaft 18 is driven by the second gear shaft 17;

[0032] A transmission guide groove with an opening at the bottom is fixedly provided inside the first gear shaft 16, and a driven section slidably connected to the transmission guide groove is fixedly provided on the cleaning shaft 2, and the cross sections of the driven section and the transmission guide groove are both regular polygons;

[0033] A first bevel gear is installed on the first gear shaft 16 and the tail end of the second gear shaft 17, and the two first bevel gears are meshed with each other. A second bevel gear is fixedly installed on the front end of the second gear shaft 17 and the top end of the third gear shaft 18, and the two second bevel gears are meshed with each other.

[0034] A half-face gear 19 is fixedly mounted on the second gear shaft 17, a passive gear plate 20 which is vertically arranged and transmission-connected to the half-face gear 19 is fixedly mounted on the vibration washing frame 3, two T-shaped suspension rods 21 are mounted on the vibration washing frame 3, and the two T-shaped suspension rods 21 are both slidably connected to the washing frame 1, and springs 22 are sleeved on the two T-shaped suspension rods 21 and at positions corresponding to the top of the washing frame 1;

[0035] During the cleaning operation, the servo motor 15 outputs the speed at the set power. After the servo motor 15 outputs the speed, it drives the vibration washing frame 3 to reciprocate up and down within the set stroke through the arrangement of the half-face gear 19, the spring 22, the T-shaped suspension rod 21 and the passive toothed plate 20;

[0036] By setting the regular polygonal cross-section of the driven section and the transmission guide groove, the first gear shaft 16 can continuously drive the cleaning shaft 2 and the cleaning net cylinder 4 when the vibration washing frame 3 reciprocates up and down;

[0037] A first differential piece is installed on the vibrating and washing frame 3, and the cleaning net cylinder 4 is transmission-connected to the cleaning shaft 2 through the first differential piece;

[0038] The first differential member includes a differential shaft a27 rotatably connected to the vibration frame 3, a differential bevel gear a is fixedly mounted on the differential shaft a27, upper bevel gears are fixedly mounted on the cleaning shaft 2 and the cleaning net cylinder 4, the two upper bevel gears are both transmission-connected to the differential bevel gear a, and the two upper bevel gears are symmetrically arranged with the horizontal plane where the axis of the differential bevel gear a is located as the axis;

[0039] By setting the positions of the two differential shafts a27 and the two upper bevel gear differential bevel gears a, the cleaning shaft 2 and the cleaning net cylinder 4 can rotate coaxially and in opposite directions.

[0040] A feeding assembly is provided at the bottom end of the cleaning net cylinder 4;

[0041] A spiral cleaning mesh 5 is mounted on the cleaning shaft 2 and is rotatably fitted with the cleaning mesh cylinder 4. The spiral cleaning mesh 5 is evenly distributed with vertically arranged liquid permeable holes 24.

[0042] The feed assembly includes a feed cylinder 29 that is rotatably connected to the bottom end of the cleaning net cylinder 4, the spiral cleaning net sheet 5 is rotatably fitted with the feed cylinder 29, the feed cylinder 29 is slidably connected to the cleaning frame 1, the feed cylinder 29 is fixedly connected with a feed nozzle 30, and a drain valve is installed on the feed cylinder 29 and at a position corresponding to the bottom of the spiral cleaning net sheet 5;

[0043] The feed nozzle 30 is provided to feed the plastic mesh to be cleaned and the cleaning liquid;

[0044] A material guide cylinder 6 is installed on the bottom surface of the vibration and washing frame 3, a material cover 7 is fixedly installed on the bottom end of the material guide cylinder 6, and a group of material discharge pipes 8 are connected between the material guide cylinder 6 and the material cover 7;

[0045] A set of discharge ports 9 are provided on the cleaning net cylinder 4 and at positions corresponding to the inner side of the discharge pipe 8;

[0046] The bottom end of the material guide cylinder 6 is rotatably connected to a rotary brush cylinder a10, and the rotary brush cylinder a10 is transmission-connected to the cleaning net cylinder 4 through a second differential member;

[0047] The second differential member includes a differential shaft b39 rotatably connected to the feed cylinder 29, and a differential bevel gear b is installed on the differential shaft b39. The bottoms of the cleaning net cylinder 4 and the rotating brush cylinder a10 are both equipped with lower bevel gears, and the two lower bevel gears are both transmission-connected to the differential bevel gear b. The two lower bevel gears are symmetrically arranged with the horizontal plane where the axis of the differential shaft b39 is located as the axis;

[0048] Through the arrangement of the differential shaft b39, the two lower bevel teeth and the differential bevel teeth b, the rotation directions of the cleaning net cylinder 4 and the rotating brush cylinder a10 are different;

[0049] A spiral filter mesh 11 that fits the rotary brush cylinder a10 is fixedly mounted on the cleaning mesh cylinder 4. Vertically arranged filter holes 26 are evenly distributed on the spiral filter mesh 11. The axis of the guide hole 25 is perpendicular to the axis of the liquid permeable hole 24. The radius of the filter hole 26 is 0.5 times the radius of the liquid permeable hole 24. The aperture of the guide hole 25 is twice the aperture of the liquid permeable hole 24.

[0050] When working, the lifting directions of the spiral filter mesh 11 and the spiral cleaning mesh 5 are both upward. The spiral cleaning mesh 5 is used to lift the plastic bottle pieces to be cleaned upward, and the spiral filter mesh 11 is used to filter out impurities in the cleaning liquid;

[0051] The diameter of the dirt guide hole 25 is smaller than the diameter of the plastic bottle pieces to be cleaned;

[0052] A dirt outlet box 12 that cooperates with the spiral dirt filter mesh 11 is fixedly arranged on the material guide cylinder 6;

[0053] The impurities filtered out by the spiral filter mesh 11 are finally discharged through the sewage outlet box 12;

[0054] The cleaning frame 1 is rotatably connected to a rotary brush cylinder b13 at a position corresponding to the outer side of the rotary brush cylinder a10, and the rotary brush cylinder b13 is driven by a vibration transmission component;

[0055] The third gear shaft 18 and the rotary brush cylinder b13 are both fixedly mounted with linkage gears 23, and the two linkage gears 23 are meshed with each other;

[0056] A cleaning annular gap for cleaning plastic bottle flakes is provided between the rotary brush cylinder a10 and the rotary brush cylinder b13;

[0057] The outer wall of the rotary brush cylinder a10 and the inner wall of the rotary brush cylinder b13 are evenly distributed with rubber soft bristles 28;

[0058] During cleaning, the rotary brush cylinder a10 and the rotary brush cylinder b13 rotate at a differential speed, so that the plastic bottle pieces can be cleaned by the rubber soft bristles 28 when they flow through the cleaning annular gap;

[0059] A discharge box 14 is fixedly mounted on the cleaning frame 1 , and the discharge box 14 is rotatably connected to the cleaning annular gap. A cleaning liquid supply module cooperating with the cleaning shaft 2 , the discharge box 14 and the cleaning annular gap is mounted on the cleaning frame 1 .

[0060] The cleaning liquid supply module includes a liquid storage tank 31 and a cleaning pump 32 fixed on the cleaning frame 1. A cleaning flow channel 33 is fixedly opened at the axial position of the cleaning shaft 2. The cleaning shaft 2 is provided with a plurality of regularly distributed cleaning spray holes 40 connected to the cleaning flow channel 33.

[0061] During cleaning, the cleaning spray hole 40 discharges liquid at high pressure, and after the cleaning spray hole 40 discharges liquid at high pressure, the plastic bottle pieces lifted on the spiral cleaning mesh 5 are then flushed and cleaned at high pressure;

[0062] The liquid outlet port of the cleaning pump 32 is connected to the cleaning channel 33 through a pump liquid pipe 34, and a liquid return hose a35 is connected between the feed cylinder 29 and the liquid storage tank 31;

[0063] A liquid collecting cylinder 36 is fixedly installed at the bottom of the discharge box 14 and at a position corresponding to the position below the cleaning annular gap. The bottom surface of the discharge box 14 is evenly distributed with filtrate holes 37 connected to the inner cavity of the liquid collecting cylinder 36. The inner diameter of the filtrate holes 37 is the same as the inner diameter of the liquid permeable hole 24.

[0064] A liquid return hose 35 is connected between the liquid collection cylinder 36 and the liquid storage tank 31 . A liquid intake port of the cleaning pump 32 is fixedly connected to a drainage pipe, which extends to the interior of the liquid storage tank 31 .

[0065] The cleaning liquid supply module also includes a diverter hose 38 fixedly connected to the pump liquid pipe 34 , and a liquid injection pipe is installed between the diverter hose 38 and each feed pipe 8 .

[0066] During operation, the pump pipe 34 discharges liquid at high pressure, and after the pump pipe 34 discharges liquid at high pressure, the cleaning liquid is used to flush and clean the plastic bottle pieces;

[0067] The working principle and use process of the present invention are as follows: during cleaning, a sufficient amount of cleaning liquid is injected into the interior of the device. After the cleaning liquid is injected, the height of the cleaning liquid should be ensured not to overflow the dirt discharge box 12. During cleaning, the servo motor 15 outputs the speed at the set power. After the servo motor 15 outputs the speed, the lifting directions of the spiral filter mesh 11 and the spiral cleaning mesh 5 are both upward. The spiral cleaning mesh 5 is used to lift the plastic bottle pieces to be cleaned upward. The spiral filter mesh 11 is used to filter out impurities in the cleaning liquid, thereby ensuring that the cleaning water is free of impurities. When the spiral cleaning mesh 5 lifts the plastic bottle pieces to be cleaned, the cleaning nozzle 40 is used to remove impurities in the cleaning liquid. The arrangement is such that the plastic bottle flakes to be cleaned on the spiral cleaning mesh 5 are subjected to a first-stage high-pressure flushing and oscillating cleaning. The plastic bottle flakes lifted by the spiral cleaning mesh 5 flow into the cleaning annular gap via the discharge pipe 8. During cleaning, the rotary brush cylinder a10 and the rotary brush cylinder b13 rotate at differential speeds, so that the plastic bottle flakes can undergo a differential grinding type second-stage cleaning via the rubber soft bristles 28 when flowing through the cleaning annular gap. After the second-stage grinding cleaning, the cleaned plastic bottle flakes are discharged via the discharge box 14. During cleaning, the rotary brush cylinder b13 and the spiral cleaning mesh 5 vibrate within a set stroke, thereby effectively improving the cleaning intensity and cleaning effect during the double-stage cleaning of the plastic bottle flakes.

[0068] 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.

[0069] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage cleaning device for plastic bottle flakes, comprising a cleaning rack (1), characterized in that: The top of the cleaning frame (1) is provided with a vibration transmission component, and the vibration transmission component is transmission-connected with a cleaning shaft (2) and a vibration cleaning frame (3); a cleaning net cylinder (4) is rotatably sleeved on the cleaning shaft (2), and the cleaning net cylinder (4) is rotationally connected with the vibration cleaning frame (3); a feeding assembly is provided at the bottom end of the cleaning net cylinder (4); a first differential is provided on the vibration cleaning frame (3), and the cleaning net cylinder (4) is transmission-connected with the cleaning shaft (2) through the first differential; a spiral cleaning net sheet (5) rotationally fitted with the cleaning net cylinder (4) is provided on the cleaning shaft (2); a material guide cylinder (6) is provided on the bottom surface of the vibration cleaning frame (3); a material cover (7) is fixedly installed on the bottom end of the material guide cylinder (6); a group of material discharge pipes (8) are connected between the material guide cylinder (6) and the material cover (7); a group of material discharge ports (9) are provided on the cleaning net cylinder (4) and at positions corresponding to the inner sides of the material discharge pipes (8); The bottom end of the cleaning rack (6) is rotatably connected to a rotary brush cylinder a (10), the rotary brush cylinder a (10) is transmission-connected to a cleaning net cylinder (4) through a second differential member, a spiral filter mesh (11) that fits the rotary brush cylinder a (10) is fixedly mounted on the cleaning net cylinder (4), a dirt outlet box (12) that fits the spiral filter mesh (11) is fixedly arranged on the guide cylinder (6), and the cleaning rack (1) is rotatably connected to a position corresponding to the outer side of the rotary brush cylinder a (10). A rotary brush cylinder b (13) is connected, the rotary brush cylinder b (13) is driven by a vibration transmission component, a cleaning annular gap for cleaning plastic bottle pieces is provided between the rotary brush cylinder a (10) and the rotary brush cylinder b (13), a discharge box (14) is fixedly mounted on the cleaning frame (1), the discharge box (14) is rotatably connected to the cleaning annular gap, and a cleaning liquid supply module coordinated with the cleaning shaft (2), the discharge box (14) and the cleaning annular gap is mounted on the cleaning frame (1).

2. The multi-stage cleaning device for plastic bottle flakes according to claim 1, characterized in that: The vibration transmission component comprises a servo motor (15) fixed on the cleaning frame (1) and a first gear shaft (16), a second gear shaft (17) and a third gear shaft (18) rotatably connected to the cleaning frame (1); the output shaft end of the servo motor (15) is transmission-connected to the first gear shaft (16); the second gear shaft (17) and the cleaning shaft (2) are both driven by the first gear shaft (16); the third gear shaft (18) is driven by the second gear shaft (17); a half-face gear (19) is fixedly mounted on the second gear shaft (17); A passive toothed plate (20) which is vertically arranged and transmission-connected to the half-face gear (19) is fixedly mounted on the vibration and washing frame (3); two T-shaped suspension rods (21) are mounted on the vibration and washing frame (3); the two T-shaped suspension rods (21) are both slidably connected to the washing frame (1); springs (22) are sleeved on the two T-shaped suspension rods (21) at positions corresponding to the top of the washing frame (1); linkage gears (23) are fixedly mounted on the third gear shaft (18) and the rotary brush cylinder b (13); the two linkage gears (23) are meshed with each other.

3. The multi-stage cleaning device for plastic bottle flakes according to claim 2 is characterized in that: A transmission guide groove with an opening at the bottom is fixedly provided inside the first gear shaft (16); a driven section slidably connected to the transmission guide groove is fixedly provided on the cleaning shaft (2); the cross sections of the driven section and the transmission guide groove are both regular polygons; a first bevel gear is installed on the first gear shaft (16) and at the tail end of the second gear shaft (17); the two first bevel gears are meshed with each other; a second bevel gear is fixedly installed on the front end of the second gear shaft (17) and the top end of the third gear shaft (18); the two second bevel gears are meshed with each other.

4. The multi-stage cleaning device for plastic bottle flakes according to claim 3 is characterized in that: The spiral cleaning mesh (5) is evenly distributed with vertically arranged liquid permeable holes (24), the cleaning mesh cylinder (4) is provided with a plurality of groups of sewage guide holes (25) distributed in a circumferential array, the spiral sewage filtering mesh (11) is evenly distributed with vertically arranged sewage filtering holes (26), the axes of the sewage guide holes (25) are perpendicular to the axes of the liquid permeable holes (24), the radius of the sewage filtering holes (26) is 0.5 times the radius of the liquid permeable holes (24), and the aperture of the sewage guide holes (25) is twice the aperture of the liquid permeable holes (24).

5. The multi-stage cleaning device for plastic bottle flakes according to claim 4, characterized in that: The first differential member comprises a differential shaft a (27) rotatably connected to the vibrating frame (3), a differential bevel gear a being fixedly mounted on the differential shaft a (27), upper bevel gears being fixedly mounted on both the cleaning shaft (2) and the cleaning net cylinder (4), the two upper bevel gears being transmission-connected to the differential bevel gear a, and the two upper bevel gears being symmetrically arranged with the horizontal plane where the axis of the differential bevel gear a is located as the axis.

6. The multi-stage cleaning device for plastic bottle flakes according to claim 5, characterized in that: The outer wall of the rotary brush cylinder a (10) and the inner wall of the rotary brush cylinder b (13) are evenly distributed with rubber soft bristles (28).

7. The multi-stage cleaning device for plastic bottle flakes according to claim 6, characterized in that: The feed assembly comprises a feed cylinder (29) which is rotatably connected to the bottom end of the cleaning mesh cylinder (4); the spiral cleaning mesh (5) is rotatably fitted with the feed cylinder (29); the feed cylinder (29) is slidably connected to the cleaning frame (1); a feed nozzle (30) is fixedly connected to the feed cylinder (29); and a drain valve is installed on the feed cylinder (29) at a position corresponding to the bottom of the spiral cleaning mesh (5).

8. The multi-stage cleaning device for plastic bottle flakes according to claim 7, characterized in that: The cleaning liquid supply module comprises a liquid storage tank (31) and a cleaning pump (32) fixed on the cleaning frame (1); a cleaning flow channel (33) is fixedly provided at the axial position of the cleaning shaft (2); a plurality of cleaning spray holes (40) are provided on the cleaning shaft (2) and are regularly distributed and connected to the cleaning flow channel (33); a liquid outlet port of the cleaning pump (32) is connected to the cleaning flow channel (33) via a pump liquid pipe (34); a bottom of the discharge box (14) and a corresponding cleaning nozzle (40) are connected to the cleaning flow channel (33); A liquid collection cylinder (36) is fixedly installed below the wash ring seam, and the bottom surface of the discharge box (14) is evenly distributed with filtrate holes (37) connected to the inner cavity of the liquid collection cylinder (36). The inner diameter of the filtrate holes (37) is the same as the inner diameter of the liquid permeable holes (24). A liquid return hose (35) is connected between the liquid collection cylinder (36) and the liquid storage tank (31), and the liquid intake port of the cleaning pump (32) is fixedly connected to a drainage pipe, and the drainage pipe extends to the interior of the liquid storage tank (31).

9. The multi-stage cleaning device for plastic bottle flakes according to claim 8, characterized in that: The cleaning liquid supply module also includes a diverter hose (38) fixedly connected to the pump liquid pipe (34), and a liquid injection pipe is installed between the diverter hose (38) and each feed pipe (8).

10. The multi-stage cleaning device for plastic bottle flakes according to claim 9, characterized in that: The second differential member comprises a differential shaft b (39) rotatably connected to the feed cylinder (29), a differential bevel gear b being mounted on the differential shaft b (39), lower bevel gears being mounted at the bottoms of the cleaning net cylinder (4) and the rotating brush cylinder a (10), the two lower bevel gears being transmission-connected to the differential bevel gear b, and the two lower bevel gears being symmetrically arranged with the horizontal plane where the axis of the differential shaft b (39) is located as the axis.

Images