Surface cleaning device

Abstract

The utility model discloses a surface cleaning device which comprises a transmission piece which is movably arranged in the first direction, a fixing seat which can move up and down and can be arranged on the transmission piece in a relative rotation mode, and a cleaning mechanism. The cleaning mechanism comprises a rack main body, a cleaning working head which can move up and down and is arranged on the rack main body in a manner of moving along a second direction, a discharging roller and a receiving roller which are rotationally arranged on the rack main body, and a cleaning piece; the second direction is perpendicular to the first direction; the two ends of the cleaning part are fixedly connected with the material collecting shaft and the material discharging shaft respectively, the cleaning work head abuts against the cleaning part, and the cleaning part is tightened among the material discharging roller, the cleaning work head and the material collecting roller. When the surface treatment device is in a working state, the cleaning piece is attached to the surface of the product, and the surface cleaning device can clean the product in an irregular shape.

Description

TECHNICAL FIELD

[0001] The utility model relates to a surface cleaning device. BACKGROUND

[0002] In the process of product production, the surface of the product needs to be cleaned, but the surface of most products is not a plane, and the surface of the product usually has structures such as curvature and bending, and the surface of some products is very complex, but the cleaning operation that can be performed by the existing cleaning device is relatively simple, and when it cleans the products with complex surfaces, it is difficult to clean completely, and manual cleaning is still needed after mechanical cleaning, which not only reduces the efficiency but also increases the labor cost. SUMMARY

[0003] The utility model discloses a surface cleaning device.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a surface cleaning device, which comprises a transmission part and a fixing seat, the transmission part is movably arranged along a first direction, the fixing seat is movably arranged on the transmission part and can rotate relative to the transmission part, and the lower part of the fixing seat forms a fixing space for fixing products.

[0005] A rack body;

[0006] A cleaning work head, which is movably arranged on the rack body and can move relative to the rack body along a second direction perpendicular to the first direction;

[0007] A feeding roller, which is rotatably connected to the rack body along its own axis;

[0008] A collecting roller, which is rotatably connected to the rack body along its own axis, and the axis of the collecting roller is parallel to the axis of the feeding roller;

[0009] A cleaning piece, one end of which is fixedly connected to the feeding roller, the other end of which is fixedly connected to the collecting roller, the cleaning work head and the cleaning piece abut each other, and the cleaning piece is taut between the feeding roller, the cleaning work head and the collecting roller;

[0010] When the surface cleaning device is in a working state, the product is fixed in the fixing space, the cleaning piece is located between the product and the cleaning work head, and the cleaning piece is in close contact with the surface of the product.

[0011] In some embodiments, the cleaning mechanism comprises a mounting seat, the mounting seat is movably arranged on the rack body in the up-down direction and is movably arranged on the rack body in the second direction, the cleaning work head is arranged on the upper portion of the mounting seat; the cleaning mechanism further comprises a guide roller, the guide roller is rotatably arranged on the mounting seat, the axis of the guide roller extends in the second direction, the guide roller comprises two guide rollers which are separately arranged on the opposite sides of the cleaning work head in the first direction, the two guide rollers are respectively a first guide roller and a second guide roller, the top of the cleaning work head is higher than the top of the two guide rollers, and the cleaning element is sequentially fitted with the outer side of the first guide roller, the top of the cleaning work head and the outer side of the second guide roller.

[0012] In some embodiments, the cleaning mechanism comprises a lifting seat and a mounting seat, the rack body is provided with a first guide rail extending in the up-down direction, the lifting seat is slidably arranged on the first guide rail, the upper portion of the lifting seat is provided with a second guide rail extending in the second direction, and the mounting seat is slidably arranged on the second guide rail, and the cleaning work head is arranged on the upper portion of the mounting seat.

[0013] In some embodiments, the cleaning mechanism comprises a driving roller, the driving roller is rotatably arranged on the upper portion of the mounting seat, the axis of the driving roller extends in the second direction, and the axis of the driving roller is parallel to the axis of the material collecting roller, and the driving roller constitutes the cleaning work head.

[0014] In some embodiments, the cleaning mechanism comprises an intermediate roller, the intermediate roller is rotatably connected to the rack body about its axis, the axis of the intermediate roller is parallel to the axis of the material collecting roller, and the axis of the intermediate roller extends in the second direction, the intermediate roller is located between the cleaning work head and the material feeding roller, or the intermediate roller is located between the cleaning work head and the material collecting roller, and the outer side of the intermediate roller abuts against the cleaning element.

[0015] In some embodiments, the cleaning mechanism comprises a clamping assembly, the clamping assembly is located between the cleaning work head and the material collecting roller, or the clamping assembly is located between the cleaning work head and the material feeding roller; the clamping assembly comprises a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are arranged relatively close to each other and relatively far away from each other, and the cleaning element is arranged between the first clamping portion and the second clamping portion.

[0016] In some embodiments, the fixing seat is rotatably arranged on the transmission element about a rotation center line, and the rotation center line extends in the first direction.

[0017] In some embodiments, the cleaning mechanism comprises a liquid dispensing mechanism, which comprises a liquid supply head for supplying cleaning liquid to the cleaning member, and the liquid outlet of the liquid supply head is located above the cleaning head.

[0018] In some embodiments, the rack body is provided with a third guide rail extending in the second direction, and the liquid supply head is slidingly arranged on the third guide rail.

[0019] In some embodiments, the cleaning mechanism comprises two groups of cleaning heads arranged at intervals in the first direction.

[0020] In some embodiments, the cleaning mechanism is movably arranged in the first direction.

[0021] Thanks to the use of the above technical solutions, the surface cleaning device of the present application has the following advantages compared with the prior art: the fixing seat for fixing the product of the surface cleaning device can move up and down relative to the conveying member, and the fixing seat can rotate relative to the conveying member; the cleaning head of the cleaning mechanism can move up and down and move in the second direction; through the movement of the conveying member in the first direction, combined with the relative movement between the fixing seat and the conveying member and the movement of the cleaning head, various radii and bends can be adapted, and the product can be cleaned at various angles, so that the surface cleaning device can be suitable for products with different surface shapes, not only better cleaning effect can be obtained, but also complete automation of surface cleaning can be realized, and cleaning efficiency can be improved and cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] FIG. 1 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 1 FIG. 2 is a schematic view of a surface cleaning device according to an embodiment of the present application;

[0023] FIG. 3 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 2 FIG. 4 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 1 FIG. 5 is a schematic view of a surface cleaning device according to an embodiment of the present application;

[0024] FIG. 6 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 3 FIG. 7 is a schematic view of a cleaning mechanism according to an embodiment of the present application;

[0025] FIG. 8 is a schematic view of a cleaning mechanism according to an embodiment of the present application; Figure 4 FIG. 9 is a schematic view of a cleaning mechanism according to an embodiment of the present application; Figure 3 FIG. 10 is a front view of a surface cleaning device according to an embodiment of the present application;

[0026] FIG. 11 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 5 FIG. 12 is a schematic view of a surface cleaning device according to an embodiment of the present application; Figure 3 FIG. 13 is a schematic view of a surface cleaning device according to an embodiment of the present application;

[0027] Wherein: 11, transmission piece; 12, fixed seat; 13, transmission track; 2, cleaning mechanism; 21, rack main body; 211, first guide rail; 212, third guide rail; 22, cleaning work head; 23, discharging roller; 24, collecting roller; 25, cleaning piece; 26, mounting seat; 27, lifting seat; 271, second guide rail; 28, guide roller; 29, intermediate roller; 31, first clamping assembly; 311, first clamping plate; 312, second clamping plate; 313, first driving piece; 32, second clamping assembly; 321, first clamping roller; 322, second clamping roller; 323, second driving piece; 41, liquid supply work head; 42, liquid outlet. DETAILED DESCRIPTION

[0028] The technical scheme of the utility model will be described in detail below with reference to the drawings and specific embodiments, so that the advantages and features of the utility model are easier for the person skilled in the art to understand. Obviously, the embodiments described in the present application are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the present application.

[0029] Referring to Figure 1 A surface cleaning device shown in the figure, which comprises a transmission piece 11 and a fixed seat 12, the transmission piece 11 is movably arranged along the first direction, the fixed seat 12 is movably arranged on the transmission piece 11 and can rotate relative to the transmission piece 11, and the lower part of the fixed seat 12 forms a fixed space for fixing products. The transmission piece 11 can drive the products to move along the first direction, and the fixed seat 12 can drive the products to move up and down or rotate relative to the transmission piece 11, so as to adjust the state of the products.

[0030] The surface cleaning device further comprises a cleaning mechanism 2, which comprises a rack main body 21, a cleaning work head 22, a discharging roller 23, a collecting roller 24 and a cleaning piece 25, wherein the cleaning work head 22 is movably arranged on the rack main body 21 and can move relative to the rack main body 21 along the second direction, and the second direction is perpendicular to the first direction. The discharging roller 23 is rotatably connected to the rack main body 21 about its own axis; the collecting roller 24 is rotatably connected to the rack main body 21 about its own axis, and the axis of the collecting roller 24 is parallel to the axis of the discharging roller 23. One end of the cleaning piece 25 is fixedly connected to the discharging roller 23, the other end of the cleaning piece 25 is fixedly connected to the collecting roller 24, the cleaning work head 22 abuts against the cleaning piece 25, and the cleaning piece 25 is taut between the discharging roller 23, the cleaning work head 22 and the collecting roller 24.

[0031] The cleaning work head 22 is used to drive the cleaning member 25 to move towards the product. When the surface cleaning device is in the working state, the product is fixed in the fixed space, the cleaning member 25 is located between the product and the cleaning work head 22, and the cleaning member 25 is in close contact with the surface of the product under the driving of the cleaning work head 22. When the cleaning member 25 is in close contact with the surface of the product, the relative movement between the cleaning member 25 and the product can be driven to clean the surface of the product.

[0032] In the embodiment, the transmission member 11 moves in the first direction, the fixed seat 12 moves up and down, the fixed seat 12 rotates, and the cleaning work head 22 moves up and down, so that the cleaning of the product surface at various angles can be realized, and thus the surface cleaning device can be suitable for cleaning products of various regular shapes and irregular shapes.

[0033] In the embodiment, during the cleaning process, the cleaning work head 22 is in close contact with the product surface, and the cleaning work head 22 can achieve the vibration effect by reciprocating in the second direction, so as to improve the cleaning effect.

[0034] In the embodiment, the cleaning mechanism 2 comprises a mounting seat 26, which is arranged to move up and down relative to the rack main body 21, and the mounting seat 26 is arranged to move in the second direction relative to the rack main body 21, and the cleaning work head 22 is arranged on the upper part of the mounting seat 26. Specifically, as shown in Figure 3 Figure 5 The cleaning mechanism 2 further comprises a lifting seat 27, the rack main body 21 is provided with a first guide rail 211 extending in the up-down direction, the lifting seat 27 is slidingly arranged on the first guide rail 211, and the upper part of the lifting seat 27 is provided with a second guide rail 271 extending in the second direction, and the mounting seat 26 is slidingly arranged on the second guide rail 271.

[0035] In the embodiment, the cleaning mechanism 2 further comprises a guide roller 28, which is rotatably arranged on the mounting seat 26 about its own axis, and the axis of the guide roller 28 and the axis of the material collecting roller 24 are parallel to each other. As shown in Figure 3 Figure 4 The guide roller 28 comprises two guide rollers 28 arranged on different sides of the cleaning work head 22 in the first direction, and the two guide rollers 28 are respectively a first guide roller and a second guide roller. The top of the cleaning work head 22 is higher than the top of the two guide rollers 28, and the cleaning member 25 is in close contact with the outer side of the first guide roller, the top of the cleaning work head 22, and the outer side of the second guide roller in sequence.

[0036] ​​The guide rollers 28 guide the winding of the cleaning elements 25. By adjusting the distance between the two guide rollers 28, the angle of the cleaning elements 25 on both sides of the cleaning work head 22 in the first direction can be adjusted, so that the contact area of the cleaning elements 25 with the product can be adjusted. The guide rollers 28 are arranged on the mounting seat 26, so that the guide rollers 28 can move up and down with the cleaning work head 22 or move in the second direction with the cleaning work head 22, so that the angle of the cleaning elements 25 on both sides of the cleaning work head 22 can be kept unchanged, and the contact area of the cleaning elements 25 with the product can also be kept unchanged.

[0037] In the embodiment, the cleaning mechanism 2 comprises an intermediate roller 29, which is rotatably connected to the frame body 21 about its own axis, and the axis of the intermediate roller 29 is parallel to the axis of the material receiving roller 24, and the axis of the intermediate roller 29 extends in the second direction. The intermediate roller 29 is located between the cleaning work head 22 and the material feeding roller 23, or the intermediate roller 29 is located between the cleaning work head 22 and the material receiving roller 24, and the outer side of the intermediate roller 29 abuts against the cleaning elements 25. Figure 4 As shown, the cleaning elements 25 are arranged between the material feeding roller 23, the intermediate roller 29, the cleaning work head 22 and the material receiving roller 24. The intermediate roller 29 guides the extension direction of the cleaning elements 25, so that the cleaning elements 25 are kept away from other components. The arrangement of the intermediate roller 29 can also tighten the cleaning elements 25, so that the cleaning work can be carried out normally. In the embodiment, a plurality of intermediate rollers 29 are arranged, and the intermediate rollers 29 are arranged between the cleaning work head 22 and the material feeding roller 23 and between the cleaning work head 22 and the material receiving roller 24.

[0038] In the embodiment, the cleaning mechanism 2 comprises a driving roller, which is rotatably arranged on the upper portion of the mounting seat 26 about its own axis, and the axis of the driving roller extends in the second direction and is parallel to the axis of the material receiving roller 24. The driving roller constitutes the cleaning work head 22. The driving roller can increase the contact area between the cleaning elements 25 and the product, and the relative movement between the cleaning elements 25 and the cleaning work head 22 is more relaxed and convenient to adjust during the adjustment of the cleaning elements 25 by the material receiving roller 24 and the material feeding roller 23. In some embodiments, the cleaning work head 22 can adopt other forms such as a scraper or a pressing head.

[0039] In the embodiment, the cleaning mechanism 2 comprises a clamping assembly, which is located between the cleaning work head 22 and the material receiving roller 24 or between the cleaning work head 22 and the material feeding roller 23. The clamping assembly is used to clamp and fix the cleaning elements 25, so that the cleaning elements 25 do not move with the product during the cleaning process, and the cleaning effect is ensured. Specifically, the clamping assembly comprises a first clamping portion and a second clamping portion, which can be arranged relatively close to each other and relatively far away from each other, and the cleaning elements 25 are arranged between the first clamping portion and the second clamping portion.

[0040] In the embodiment, the clamping assembly includes a first clamping assembly 31 and a second clamping assembly 32. The first clamping assembly 31 is arranged between the cleaning work head 22 and the feeding roller 23, and the second clamping assembly 32 is arranged between the cleaning work head 22 and the collecting roller 24. Specifically, the first clamping assembly 31 is arranged between the guide roller 28 and the feeding roller 23, and the second clamping assembly 32 is arranged between the guide roller 28 and the collecting roller 24. As shown in Figure 3 、 Figure 4 In the embodiment, the first clamping assembly 31 includes a first clamping plate 311, a second clamping plate 312, and a first driving member 313. The first clamping plate 311 is fixedly arranged on the rack main body 21. The second clamping plate 312 is capable of moving towards or away from the first clamping plate 311 along the first direction. The first driving member 313 is used to drive the second clamping plate 312 to move. The first clamping plate 311 constitutes the first clamping part, and the second clamping plate 312 constitutes the second clamping part. In the embodiment, the second clamping assembly 32 includes a first clamping roller 321, a second clamping roller 322, and a second driving member 323. The first clamping roller 321 is arranged on the rack main body 21. The second clamping roller 322 is capable of moving towards or away from the first clamping roller 321 along the first direction. The second driving member 323 is used to drive the second clamping roller 322 to move. The first clamping roller 321 constitutes the first clamping part, and the second clamping roller 322 constitutes the second clamping part.

[0041] In the embodiment, the cleaning member 25 is a cleaning cloth. In the embodiment, the cleaning mechanism 2 includes a liquid distribution mechanism. The liquid distribution mechanism includes a liquid supply work head 41. The liquid supply work head 41 is used to supply cleaning liquid to the cleaning member 25. The liquid outlet 42 of the liquid supply work head 41 is located above the cleaning work head 22. Specifically, as shown in Figure 3 、 Figure 4 The rack main body 21 is provided with a third guide rail 212 extending along the second direction. The liquid supply work head 41 is slidably arranged on the third guide rail 212. The liquid supply work head 41 is capable of supplying cleaning liquid to the cleaning member 25 above the cleaning work head 22 along the length direction of the cleaning work head 22.

[0042] In the embodiment, as shown in Figure 1 、 Figure 2 The surface cleaning device is provided with a transmission track 13 extending along the first direction. The transmission member 11 is slidably arranged on the transmission track 13. In the embodiment, as shown in Figure 2 The fixed seat 12 is rotatably arranged relative to the transmission member 11 about a rotation center line. The rotation center line extends along the first direction. In the embodiment, the lower part of the fixed seat 12 is provided with an adsorption surface for adsorbing and fixing the product. When the product is adsorbed and fixed on the adsorption surface, the product is located in the fixed space.

[0043] In the embodiment, the cleaning mechanism 2 comprises two groups arranged at intervals along the first direction, and the two groups of cleaning mechanism 2 can synchronously clean the to-be-cleaned product, thereby improving the cleaning efficiency. The two groups of cleaning mechanism 2 can also successively clean the to-be-cleaned product, thereby improving the cleaning effect.

[0044] In the embodiment, the cleaning mechanism 2 is movably arranged along the first direction, so that when the product and the cleaning member 25 need to relatively move along the first direction, if the required moving distance is large, the transmission member 11 and the cleaning mechanism 2 can be simultaneously driven to move, compared with the separate movement of the transmission member 11, the stroke of the movement of the transmission member 11 can be reduced, thereby effectively reducing the size of the equipment.

[0045] In summary, the surface cleaning device of the embodiment, the fixing seat 12 for fixing the product can move up and down relative to the transmission member 11, and the fixing seat 12 can rotate relative to the transmission member 11, the cleaning working head 22 of the cleaning mechanism 2 can move up and down and can move along the second direction, through the movement of the transmission member 11 along the first direction, combined with the relative movement between the fixing seat 12 and the transmission member 11 and the movement of the cleaning working head 22, various radii and bends can be adapted and various angle cleaning processes can be performed on the product, thereby being applicable to products with different surface shapes, not only better cleaning effect can be obtained, but also complete automation of surface cleaning can be realized, thereby improving the cleaning efficiency and reducing the cost.

[0046] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A surface cleaning device characterized by: The surface cleaning device comprises a transmission member movably arranged in a first direction and a fixing base movably arranged on the transmission member and rotatably arranged relative to the transmission member, a lower part of the fixing base being formed with a fixing space for fixing a product; the surface cleaning device further comprises a cleaning mechanism, the cleaning mechanism comprising: a rack body; a cleaning work head movably arranged on the rack body and movably arranged relative to the rack body in a second direction perpendicular to the first direction; a feeding roller rotatably connected to the rack body about an axis thereof; a collecting roller rotatably connected to the rack body about an axis thereof, the axis of the collecting roller being parallel to the axis of the feeding roller; a cleaning member fixedly connected at one end to the feeding roller and at the other end to the collecting roller, the cleaning work head abutting against the cleaning member, the cleaning member being taut between the feeding roller, the cleaning work head and the collecting roller; when the surface cleaning device is in a working state, the product is fixed in the fixing space, the cleaning member is located between the product and the cleaning work head, and the cleaning member abuts against a surface of the product.

2. The surface cleaning apparatus of claim 1, wherein: The cleaning mechanism comprises a mounting base movably arranged relative to the rack body in a vertical direction and movably arranged relative to the rack body in the second direction, the cleaning work head being arranged at an upper part of the mounting base; the cleaning mechanism further comprises guide rollers rotatably arranged on the mounting base about axes thereof, the axes of the guide rollers extending in the second direction, the guide rollers including two guide rollers arranged at different sides of the cleaning work head in the first direction, the two guide rollers being a first guide roller and a second guide roller respectively, a top part of the cleaning work head being higher than top parts of the two guide rollers, the cleaning member abutting against an outer side of the first guide roller, a top part of the cleaning work head and an outer side of the second guide roller in sequence.

3. The surface cleaning apparatus of claim 1, wherein: The cleaning mechanism comprises a lifting base and a mounting base, the rack body being provided with a first guide rail extending in a vertical direction, the lifting base being slidably arranged on the first guide rail, an upper part of the lifting base being provided with a second guide rail extending in the second direction, the mounting base being slidably arranged on the second guide rail, the cleaning work head being arranged at an upper part of the mounting base.

4. The surface cleaning apparatus of claim 3, wherein: the cleaning mechanism comprises a driving roller rotatably arranged at an upper part of the mounting base about an axis thereof, the axis of the driving roller extending in the second direction and being parallel to the axis of the collecting roller, the driving roller constituting the cleaning work head.

5. The surface cleaning apparatus of claim 1, wherein: The cleaning mechanism comprises an intermediate roller, which is rotationally connected to the rack body about an axis of the intermediate roller, the axis of the intermediate roller is parallel to the axis of the take-up roller, and the axis of the intermediate roller extends along the second direction, the intermediate roller is located between the cleaning head and the feed roller, or the intermediate roller is located between the cleaning head and the take-up roller, and an outer side of the intermediate roller abuts against the cleaning member.

6. The surface cleaning apparatus of claim 1, wherein: The cleaning mechanism comprises a clamping assembly, which is located between the cleaning head and the take-up roller, or the clamping assembly is located between the cleaning head and the feed roller; the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part and the second clamping part are relatively close and relatively far away, and the cleaning member is arranged between the first clamping part and the second clamping part.

7. The surface cleaning apparatus of claim 1, wherein: The fixing seat is rotationally arranged relative to the transmission member about a rotation center line, and the rotation center line extends along the first direction.

8. The surface cleaning apparatus of claim 1, wherein: The cleaning mechanism comprises a liquid distribution mechanism, which comprises a liquid supply head for supplying cleaning liquid to the cleaning member, and a liquid outlet of the liquid supply head is located above the cleaning head.

9. The surface cleaning apparatus of claim 8, wherein: The rack body is provided with a third guide rail extending along the second direction, and the liquid supply head is slidably arranged on the third guide rail.

10. The surface cleaning apparatus of any of claims 1-9, wherein: The cleaning mechanism comprises two groups of cleaning mechanisms which are spaced apart along the first direction; and / or the cleaning mechanism is movably arranged along the first direction. The cleaning mechanism comprises an intermediate roller, which is rotationally connected to the rack body about an axis of the intermediate roller, the axis of the intermediate roller is parallel to the axis of the take-up roller, and the axis of the intermediate roller extends along the second direction, the intermediate roller is located between the cleaning head and the feed roller, or the intermediate roller is located between the cleaning head and the take-up roller, and an outer side of the intermediate roller abuts against the cleaning member. The cleaning mechanism comprises a clamping assembly, which is located between the cleaning head and the take-up roller, or the clamping assembly is located between the cleaning head and the feed roller; the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part and the second clamping part are relatively close and relatively far away, and the cleaning member is arranged between the first clamping part and the second clamping part. The fixing seat is rotationally arranged relative to the transmission member about a rotation center line, and the rotation center line extends along the first direction. The cleaning mechanism comprises a liquid distribution mechanism, which comprises a liquid supply head for supplying cleaning liquid to the cleaning member, and a liquid outlet of the liquid supply head is located above the cleaning head. The rack body is provided with a third guide rail extending along the second direction, and the liquid supply head is slidably arranged on the third guide rail. The cleaning mechanism comprises two groups of cleaning mechanisms which are spaced apart along the first direction; and / or the cleaning mechanism is movably arranged along the first direction.

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