Acrylate glue production and processing device and method

Abstract

The invention belongs to the technical field of glue processing, and particularly relates to an acrylate glue producing and processing device and method.The acrylate glue producing and processing device comprises a collecting barrel installed on a bottom frame, the bottom of the collecting barrel is connected with a discharging pipe, the interior of the collecting barrel is connected with a filtering barrel, and glue is collected in the collecting barrel after being filtered; the cleaning mechanism is used for stirring and cleaning the filter cartridge; a support is fixedly connected to the bottom frame, and a lifting mechanism is fixedly installed on the support and used for driving the cleaning mechanism to ascend and descend. The cleaning mechanism comprises a lifting frame, the lifting frame is fixedly connected with the lifting mechanism, a rotating shaft is rotationally connected to the lifting frame, a lifting seat is movably connected to the rotating shaft, and a plurality of telescopic frames are uniformly and fixedly connected to the lifting seat in the circumferential direction of the lifting seat; cleaning rollers are rotationally connected to the tail ends of the telescopic frames; the multiple cleaning rollers are arranged, and the telescopic scraping plates are connected to the cleaning rollers, so that residual glue on the inner wall of the filter cartridge can be scraped and cleaned, and blockage of the filter cartridge is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of glue processing, and in particular to an acrylate glue production and processing device and method. Background Art

[0002] Acrylic adhesives have a wide range of raw materials, simple preparation processes, rapid drying and molding, good transparency, good bonding properties for a variety of materials, and excellent weather resistance, water resistance, and chemical resistance. In particular, they have excellent bonding properties for hydrophobic surface materials. This rubber adhesive has better atmospheric aging resistance, is easy to use, and has good durability of bonded joints. In the preparation process of the glue, a large number of particles will be contained, including unreacted fiber fragments, organic resin gel particles, integration of semi-fibers and inorganic substances, organic particles, metals, crystals, inorganic particles, as well as ash, rust and other impurities. These substances will affect the viscosity of the glue, so a filter device is needed to be used for treatment during the glue production process.

[0003] Existing filters usually filter the glue by pouring it into the filter. However, when the glue enters the filter, a part of it will adhere to the inner wall of the filter. Since the glue has a certain viscosity, the glue attached to the filter will slowly flow to the bottom of the filter for filtration. After the glue is filtered, the glue solidifies inside the filter, which will cause blockage inside the filter over time and is difficult to clean. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an acrylic glue production and processing device and method, which can clean the filter cartridge in time by providing a cleaning mechanism, thereby overcoming the shortcomings of filter clogging in the prior art and aiming to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: an acrylic glue production and processing device proposed by the present invention includes: a collecting cylinder, which is installed on a base frame, and a discharge pipe is connected to the bottom of the collecting cylinder, and a filter cylinder is connected inside the collecting cylinder, and the glue is collected in the collecting cylinder after filtering; a cleaning mechanism, which is used to stir and clean the filter cylinder; a bracket is fixedly connected to the base frame, and a lifting mechanism is fixedly installed on the bracket to drive the cleaning mechanism to rise and fall; the cleaning mechanism includes a lifting frame, which is fixedly connected to the lifting mechanism, and a rotating shaft is rotatably connected to the lifting frame, and a lifting seat is movably connected to the rotating shaft, and a plurality of telescopic frames are evenly and fixedly connected to the lifting seat along its circumference; a cleaning roller is rotatably connected to the end of the telescopic frame to clean the inner wall of the filter cylinder.

[0006] As a preferred technical solution of the present invention, a fixed seat is fixedly connected to the rotating shaft, a spring is fixedly connected between the fixed seat and the lifting seat, and a connecting rod is rotatably connected between the fixed seat and the telescopic frame. When the lifting seat is raised or lowered, the telescopic frame is driven to extend and retract, and a stop seat for limiting the lifting seat is provided in the filter cartridge.

[0007] As a preferred technical solution of the present invention, a pair of scrapers that can be retracted into the interior of the cleaning roller are symmetrically connected to the surface of the cleaning roller, the scrapers are used to clean the inner wall of the filter cylinder, and a lifting rod is connected inside the cleaning roller to drive the two scrapers to move; the lower end of the lifting rod is fixedly connected to a fixing rod, and the scraper is fixedly connected to a connecting block, and the two ends of the fixing rod are respectively slidably connected to the two connecting blocks, and the connecting block is provided with an oblique guide hole that is slidably connected to the fixing rod, and the two scrapers are driven to move simultaneously when the lifting rod is raised or lowered.

[0008] As a preferred technical solution of the present invention, one end of the lifting rod extends to the outside of the cleaning roller and is fixedly connected to a ring-shaped part. The ring-shaped part is arranged on the periphery of the cleaning roller. The cleaning roller is provided with an avoidance hole that cooperates with the lifting rod. The surface of the ring-shaped part is provided with an annular groove, and a slider is slidably connected to the annular groove. A pull rod is rotatably connected between the telescopic frame and the slider.

[0009] As a preferred technical solution of the present invention, a rotating part is coaxially fixedly connected to the cleaning roller, a gear ring cooperating with the rotating part is fixedly connected to the lifting frame, the rotating part includes an outer gear ring and a ratchet, the ratchet is coaxially connected to the cleaning roller, and the ratchet is rotatably connected in the outer gear ring, and a plurality of ratchet pawls cooperating with the ratchet are connected to the inner wall of the outer gear ring, and an elastic part is fixedly connected between the ratchet pawls and the inner wall of the outer gear ring.

[0010] As a preferred technical solution of the present invention, a driving motor is installed on the lifting frame, and the driving motor drives the rotating shaft to rotate through a pulley and a belt line.

[0011] As a preferred technical solution of the present invention, the bottom of the filter cartridge is higher than the bottom of the collecting cartridge, and a filter layer is provided on the inner wall of the filter cartridge.

[0012] As a preferred technical solution of the present invention, a detachable collecting box is connected to the lower end of the cleaning roller for collecting waste materials scraped off by the scraper.

[0013] A method for producing and processing acrylic glue comprises the following steps:

[0014] Step 1: Add the processed glue into the filter cartridge, and the glue will flow into the collection cartridge after being filtered through the filter cartridge;

[0015] Step 2: During the filtering process, the lifting mechanism can drive the cleaning mechanism to descend into the filter cylinder, and then drive the motor to drive the rotating shaft to rotate, driving the cleaning roller to rotate in a circle to stir the glue and increase the fluidity of the glue;

[0016] Step 3: After the glue is filtered, the collection box is installed at the lower end of the cleaning roller. The lifting mechanism drives the cleaning mechanism down again. The lifting seat drops to the height of the stop seat and then continues to drop. The lifting seat rises along the rotating shaft, driving the cleaning roller to rise. The rotating member engages with the gear ring, and the telescopic frame extends at the same time, so that the scraper extends out of the cleaning roller and contacts the inner wall of the filter cylinder.

[0017] Step 4: Then drive the motor to drive the rotating shaft to rotate, drive the cleaning roller to rotate in a circle, and the scraper cleans the inner wall of the filter cylinder;

[0018] Step 5: After cleaning is completed, the lifting mechanism drives the cleaning mechanism to rise. During the rising process of the cleaning mechanism, the scraper is retracted into the cleaning roller, and the waste scraped off by the scraper flows into the collection box.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention is provided with a plurality of cleaning rollers, and a retractable scraper is connected to the cleaning roller, so that the residual glue on the inner wall of the filter cartridge can be scraped off and cleaned, thereby avoiding clogging of the filter cartridge.

[0021] 2. The cleaning mechanism of the present invention can simultaneously have the functions of stirring the glue and cleaning the inner wall of the cleaning roller, thereby improving the functionality of the device.

[0022] 3. The present invention connects a retractable scraper to the cleaning roller. When cleaning is completed, the scraper automatically retracts into the cleaning roller, so that the residual glue on the surface of the scraper can automatically flow into the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention provides a schematic structural diagram of an acrylic glue production and processing device.

[0024] Figure 2 This is a schematic diagram of the structure of the collecting cartridge and the filtering cartridge proposed in the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the cleaning mechanism proposed by the present invention.

[0026] Figure 4 This is a schematic diagram of the cleaning mechanism proposed by the present invention from another angle.

[0027] Figure 5 This is a schematic structural diagram of the cleaning roller proposed in the present invention.

[0028] Figure 6This is a schematic diagram of the internal structure of the cleaning roller proposed by the present invention.

[0029] Figure 7 This is a schematic structural diagram of the rotating part proposed in the present invention.

[0030] In the figure: 1. collecting cylinder; 101. filter cylinder; 102. filter layer; 103. stop seat; 104. discharge pipe; 2. cleaning mechanism; 21. lifting frame; 22. cleaning roller; 221. scraper; 222. rotating member; 2221. outer gear ring; 2222. ratchet; 2223. pawl; 2224. elastic member; 223. collecting box; 224. lifting rod; 225. annular member; 2251. slider; 2252. annular groove; 226. avoidance hole; 227. fixing rod; 228. connecting block; 229. guide hole; 23. rotating shaft; 24. fixing seat; 25. telescopic frame; 26. lifting seat; 27. spring; 28. pull rod; 29. ​​gear ring; 210. connecting rod; 211. driving motor; 3. lifting mechanism; 4. base frame; 5. bracket. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment: This embodiment discloses an acrylic ester glue production and processing device, such as Figure 1-Figure 7 As shown, it includes: a collecting barrel 1, which is installed on a base frame 4, a discharge pipe 104 is connected to the bottom of the collecting barrel 1, a valve is provided on the discharge pipe 104, a filter barrel 101 is connected inside the collecting barrel 1, the filter barrel 101 can be taken out from the collecting barrel 1, and the glue is filtered through the filter barrel 101 and collected in the collecting barrel 1, wherein the bottom of the filter barrel 101 is higher than the bottom of the collecting barrel 1, and a filter layer 102 is provided on the inner wall of the filter barrel 101, and the filter layer 102 can adopt a filter cloth or a filter mesh structure, which is used to filter out large particles in the glue, such as unreacted fiber fragments, organic resin gel particles, integration of semi-fiber and inorganic matter, organic particles, metals, crystals, inorganic particles, and impurities such as ash and rust; a cleaning mechanism 2, which is used to stir and clean the filter barrel 101, and the cleaning mechanism 2 is arranged above the filter barrel 101 and can be moved into the filter barrel 101; a bracket 5 is fixedly connected to the base frame 4, and a lifting mechanism 3 is fixedly installed on the bracket 5, which is used to drive the cleaning mechanism 2 to rise and fall, and the lifting mechanism 3 adopts a cylinder.

[0033] like Figure 3-Figure 4As shown, the cleaning mechanism 2 includes a lifting frame 21, which is fixedly connected to the lifting mechanism 3. A rotating shaft 23 is rotatably connected to the lifting frame 21. A driving motor 211 is installed on the lifting frame 21. The driving motor 211 drives the rotating shaft 23 to rotate through a pulley and a belt line; a lifting seat 26 is movably connected to the rotating shaft 23, and the lifting seat 26 can move axially along the rotating shaft 23. The lifting seat 26 is evenly and fixedly connected to a plurality of telescopic frames 25 along its circumference, and the number of telescopic frames 25 is 3-4; a cleaning roller 22 is rotatably connected to the end of the telescopic frame 25 for cleaning the inner wall of the filter cartridge 101; a fixed seat 24 is fixedly connected to the rotating shaft 23, and the fixed seat 24 is arranged above the lifting seat 26. A spring 27 is fixedly connected to the lifting seat 26, and the spring 27 applies elastic force to the lifting seat 26. A connecting rod 210 is rotatably connected between the fixed seat 24 and the telescopic frame 25. When the lifting seat 26 rises, it drives the telescopic frame 25 to contract, and when the lifting seat 26 descends, it drives the telescopic frame 25 to extend, and a stopper 103 for limiting the lifting seat 26 is provided in the filter cartridge 101; during filtering, the lifting mechanism 3 drives the cleaning mechanism 2 to descend, and the lifting seat 26 descends to a contact position with the stopper 103. At this time, the cleaning roller 22 descends into the filter cartridge 101, and the rotating shaft 23 is driven to rotate by the driving motor 211, thereby driving the cleaning roller 22 to rotate in a circle, which can stir the glue, improve the fluidity of the glue, and increase the filtration efficiency.

[0034] like Figure 5-Figure 6 As shown, a pair of scrapers 221 that can be extended to the inside of the cleaning roller 22 are symmetrically connected to the surface of the cleaning roller 22. The scrapers 221 are used to clean the inner wall of the filter cartridge 101, that is, to clean the position of the filter layer 102. A lifting rod 224 is connected inside the cleaning roller 22 to drive the two scrapers 221 to move. A fixing rod 227 is fixedly connected to the lower end of the lifting rod 224. The scrapers 221 are fixedly connected to a connecting block 228. The connecting block 228 is in the shape of an inverted right-angled trapezoid. The two ends of the fixing rod 227 are respectively slidably connected to the two connecting blocks 228. The connecting block 228 is provided with an oblique guide hole 229 which is slidably connected to the fixed rod 227. The fixed rod 227 can be slidably connected to the guide hole 229 through a sliding shaft, and the two guide holes 229 are arranged in an eight-shaped shape; when the lifting rod 224 rises, it drives the fixed rod 227 to rise, driving the two scrapers 221 away from each other, so that the scrapers 221 extend out of the cleaning roller 22; when the lifting rod 224 descends, it drives the fixed rod 227 to descend, driving the two scrapers 221 closer to each other, so that the scrapers 221 shrink to the inside of the cleaning roller 22.

[0035] Among them, one end of the lifting rod 224 extends to the outside of the cleaning roller 22 and is fixedly connected to a ring member 225. The ring member 225 is arranged on the outer periphery of the cleaning roller 22. The cleaning roller 22 is provided with an avoidance hole 226 that cooperates with the lifting rod 224. The surface of the ring member 225 is provided with an annular groove 2252, and a slider 2251 is slidably connected to the annular groove 2252. A pull rod 28 is rotatably connected between the telescopic frame 25 and the slider 2251. When the telescopic frame 25 is extended, it will drive the ring member 225 to rise, and then drive the lifting rod 224 to rise.

[0036] Preferably, a detachable collecting box 223 is connected to the lower end of the cleaning roller 22 for collecting waste scraped off by the scraper 221. The collecting box 223 can be threadedly connected to the lower end of the cleaning roller 22 to facilitate disassembly of the collecting box 223. When stirring, the collecting box 223 is removed, and when cleaning, the collecting box 223 is installed.

[0037] When the cleaning roller 22 is cleaned, the lifting mechanism 3 is lifted and the lifting seat 26 is lifted and moved up, ...

[0038] like Figure 7As shown, a rotating member 222 is coaxially fixedly connected to the cleaning roller 22, and a gear ring 29 cooperating with the rotating member 222 is fixedly connected to the lifting frame 21. The rotating member 222 includes an outer gear ring 2221 and a ratchet 2222. The outer gear ring 2221 can mesh with the gear ring 29. The ratchet 2222 is coaxially connected to the cleaning roller 22. When the ratchet 2222 rotates, the cleaning roller 22 is driven to rotate, and the ratchet 2222 is rotatably connected in the outer gear ring 2221, and a plurality of ratchet pawls 2223 cooperating with the ratchet 2222 are connected to the inner wall of the outer gear ring 2221, and an elastic member 2224 is fixedly connected between the ratchet pawls 2223 and the inner wall of the outer gear ring 2221; during the cleaning process, the outer gear ring 2221 meshes with the gear ring 29, When the driving motor 211 rotates forward, it drives the rotating shaft 23 to rotate, and drives multiple cleaning rollers 22 to revolve. When the cleaning roller 22 revolves, the outer ring gear 2221 rotates along the ring gear 29. At this time, the outer ring gear 2221 cannot drive the ratchet 2222 to rotate, that is, the cleaning roller 22 does not rotate on its own; when it is necessary to switch the scraper 221 to clean the filter layer 102, the driving motor 211 is reversed, driving the rotating shaft 23 to reverse. At this time, the outer ring gear 2221 rotates in the opposite direction along the ring gear 29, driving the ratchet 2222 to rotate, and then driving the cleaning roller 22 to rotate 180°, so that the other scraper 221 contacts the filter layer 102, and then the driving motor 211 rotates forward again, and the scraper 221 continues to clean the filter layer 102.

[0039] A method for producing and processing acrylic glue comprises the following steps:

[0040] Step 1: Add the processed glue into the filter cartridge 101, and the glue is filtered through the filter cartridge 101 and flows into the collection cartridge 1;

[0041] Step 2: During the filtering process, the lifting mechanism 3 can drive the cleaning mechanism 2 to descend into the filter cartridge 101, and then the driving motor 211 drives the rotating shaft 23 to rotate, driving the cleaning roller 22 to rotate in a circle to stir the glue and increase the fluidity of the glue;

[0042] Step 3: After the glue is filtered, the collecting box 223 is installed at the lower end of the cleaning roller 22, and the lifting mechanism 3 drives the cleaning mechanism 2 to descend again. The lifting seat 26 descends to the height of the stopper 103 and then continues to descend. The lifting seat 26 rises along the rotating shaft 23, driving the cleaning roller 22 to rise. The rotating member 222 is meshed with the gear ring 29, and the telescopic frame 25 is extended at the same time, so that the scraper 221 extends out of the cleaning roller 22 and contacts the inner wall of the filter cylinder 101.

[0043] Step 4: Then the driving motor 211 drives the rotating shaft 23 to rotate, drives the cleaning roller 22 to rotate in a circle, and the scraper 221 cleans the inner wall of the filter cylinder 101;

[0044] Step 5: After cleaning is completed, the lifting mechanism 3 drives the cleaning mechanism 2 to rise. During the rising process of the cleaning mechanism 2, the scraper 221 shrinks into the cleaning roller 22, and the waste scraped off by the scraper 221 flows into the collection box 223.

[0045] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An acrylic glue production and processing device, characterized in that: include: A collecting cylinder (1) is mounted on a base frame (4); a discharge pipe (104) is connected to the bottom of the collecting cylinder (1); a filter cylinder (101) is connected inside the collecting cylinder (1); and the glue is filtered and collected in the collecting cylinder (1); A cleaning mechanism (2) for stirring and cleaning the filter cartridge (101); A bracket (5) is fixedly connected to the bottom frame (4), and a lifting mechanism (3) is fixedly installed on the bracket (5) for driving the cleaning mechanism (2) to rise and fall; The cleaning mechanism (2) comprises a lifting frame (21), the lifting frame (21) is fixedly connected to the lifting mechanism (3), a rotating shaft (23) is rotatably connected to the lifting frame (21), a lifting seat (26) is movably connected to the rotating shaft (23), and the lifting seat (26) is evenly and fixedly connected to a plurality of telescopic frames (25) along its circumference; The end of the telescopic frame (25) is rotatably connected to a cleaning roller (22) for cleaning the inner wall of the filter cartridge (101).

2. The acrylic glue production and processing device according to claim 1, characterized in that: A fixed seat (24) is fixedly connected to the rotating shaft (23); a spring (27) is fixedly connected between the fixed seat (24) and the lifting seat (26); a connecting rod (210) is rotatably connected between the fixed seat (24) and the telescopic frame (25); when the lifting seat (26) is lifted or lowered, the telescopic frame (25) is driven to be extended or retracted; and a stopper (103) for limiting the position of the lifting seat (26) is provided in the filter cartridge (101).

3. The acrylic glue production and processing device according to claim 2, characterized in that: A pair of scrapers (221) that can be extended and retracted into the inside of the cleaning roller (22) are symmetrically connected to the surface of the cleaning roller (22); the scrapers (221) are used to clean the inner wall of the filter cylinder (101); and a lifting rod (224) is connected inside the cleaning roller (22) for driving the two scrapers (221) to move; a fixing rod (227) is fixedly connected to the lower end of the lifting rod (224); the scrapers (221) are fixedly connected to a connecting block (228); the two ends of the fixing rod (227) are respectively slidably connected to the two connecting blocks (228); the connecting block (228) is provided with an oblique guide hole (229) slidably connected to the fixing rod (227); when the lifting rod (224) is raised or lowered, the two scrapers (221) are driven to move simultaneously.

4. The acrylic glue production and processing device according to claim 3, characterized in that: One end of the lifting rod (224) extends to the outside of the cleaning roller (22) and is fixedly connected to a ring member (225); the ring member (225) is arranged on the periphery of the cleaning roller (22); the cleaning roller (22) is provided with an avoidance hole (226) that cooperates with the lifting rod (224); the surface of the ring member (225) is provided with an annular groove (2252); a slider (2251) is slidably connected to the annular groove (2252); and a pull rod (28) is rotatably connected between the telescopic frame (25) and the slider (2251).

5. The acrylic glue production and processing device according to claim 4, characterized in that: A rotating member (222) is coaxially fixedly connected to the cleaning roller (22), a gear ring (29) matched with the rotating member (222) is fixedly connected to the lifting frame (21), the rotating member (222) comprises an outer gear ring (2221) and a ratchet (2222), the ratchet (2222) is coaxially connected to the cleaning roller (22), and the ratchet (2222) is rotatably connected inside the outer gear ring (2221), and a plurality of ratchet pawls (2223) matched with the ratchet (2222) are connected to the inner wall of the outer gear ring (2221), and an elastic member (2224) is fixedly connected between the ratchet pawls (2223) and the inner wall of the outer gear ring (2221).

6. The acrylic glue production and processing device according to claim 5, characterized in that: A driving motor (211) is installed on the lifting frame (21), and the driving motor (211) drives the rotating shaft (23) to rotate through a pulley and a belt line.

7. The acrylic glue production and processing device according to claim 6, characterized in that: The bottom of the filter cartridge (101) is higher than the bottom of the collection cartridge (1), and a filter layer (102) is provided on the inner wall of the filter cartridge (101).

8. The acrylic glue production and processing device according to claim 7, characterized in that: The lower end of the cleaning roller (22) is connected to a detachable collecting box (223) for collecting waste material scraped off by the scraper (221).

9. A method for producing and processing acrylic glue, using an acrylic glue production and processing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Add the processed glue into the filter cartridge (1); the glue is filtered through the filter cartridge (101) and then flows into the collection cartridge (101); Step 2: During the filtering process, the lifting mechanism (3) can drive the cleaning mechanism (2) to descend into the filter cylinder (101), and then the driving motor (211) drives the rotating shaft (23) to rotate, driving the cleaning roller (22) to rotate in a circle to stir the glue and increase the fluidity of the glue; Step 3: After the glue filtering is completed, the collecting box (223) is installed at the lower end of the cleaning roller (22), the lifting mechanism (3) drives the cleaning mechanism (2) to descend again, the lifting seat (26) descends to the height of the stop seat (103) and then continues to descend, the lifting seat (26) rises along the rotating shaft (23), driving the cleaning roller (22) to rise, the rotating member (222) engages with the gear ring (29), and the telescopic frame (25) is extended at the same time, so that the scraper (221) extends out of the cleaning roller (22) and contacts the inner wall of the filter cylinder (101); Step 4: Then the driving motor (211) drives the rotating shaft (23) to rotate, drives the cleaning roller (22) to rotate in a circle, and the scraper (221) cleans the inner wall of the filter cylinder (101); Step 5: After cleaning is completed, the lifting mechanism (3) drives the cleaning mechanism (2) to rise. During the rising process of the cleaning mechanism (2), the scraper (221) shrinks into the cleaning roller (22), and the waste scraped off by the scraper (221) flows into the collection box (223).

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