Coating head cleaning device

Abstract

The invention discloses a coating head cleaning device. The coating head cleaning device comprises a spraying assembly and a wiping assembly. The spraying assembly is used for spraying cleaning liquid to the coating head. The wiping assembly comprises a clamping mechanism and a floating mechanism, the clamping mechanism can be attached to the two sides of a coating lip of the coating head and used for removing the cleaning liquid and / or the coating liquid, and the spraying assembly and the wiping assembly can move relative to the coating head. Wherein the floating mechanism comprises a bottom plate, a guide rail and a sliding block, the guide rail is arranged on the bottom plate, the sliding block is connected with the clamping mechanism, and when the coating head makes contact with the clamping mechanism, the sliding block can drive the clamping mechanism to move in the direction perpendicular to the length direction of the coating head along the guide rail, so that the clamping mechanism is attached to the two sides of a coating lip of the coating head. The cleaning device not only can automatically clean the coating head, but also can be suitable for cleaning coating liquid with different viscosities, and meanwhile, the alignment requirement of the coating head and the wiping assembly can be lowered.

Description

Technical Field

[0001] The invention relates to the technical field of coating equipment, and in particular to a coating head cleaning device. Background Art

[0002] During the coating process of the coating equipment, the coating liquid will climb to both sides of the coating lip due to the surface tension of the coating liquid, which will affect the formation of the coating liquid curtain and the coating liquid on both sides of the coating lip will also flow downward under the action of gravity, resulting in uneven coating and thus reducing the coating quality.

[0003] In the prior art, when coating liquid crawls onto both sides of the coating lip, manual cleaning is required. However, different operators have different cleaning techniques and strengths, which may lead to inconsistent cleaning effects, thus affecting the coating quality. Improper cleaning methods by operators may also cause wear of the coating lip, affecting the service life and performance of the coating head. In addition, the manual cleaning process is time-consuming, resulting in increased downtime, affecting production efficiency.

[0004] Therefore, there is an urgent need for a cleaning device that can automatically clean the coating head. Summary of the invention

[0005] The purpose of the present invention is to provide a coating head cleaning device, which can not only automatically clean the coating head, but also be suitable for cleaning coating liquids with different viscosities. At the same time, it can also reduce the alignment requirements of the coating head and the wiping component, ensuring that the coating head and the wiping component can fit each other, thereby improving the cleaning effect and further improving the coating quality.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A coating head cleaning device, comprising:

[0008] A spray assembly, the spray assembly comprising a spray head, the spray head being used to spray a cleaning liquid onto both sides of a coating lip of the coating head;

[0009] A wiping assembly, the wiping assembly comprising a clamping mechanism and a floating mechanism, the clamping mechanism being arranged on the floating mechanism, the clamping mechanism being able to fit with both sides of the coating lip of the coating head and being used to remove the cleaning liquid and / or coating liquid on both sides of the coating lip of the coating head, and the spraying assembly and the wiping assembly being able to move relative to the coating head in the length direction of the coating head;

[0010] Wherein, the floating mechanism includes a base plate, a guide rail and a slider, the guide rail is arranged on the base plate, and the slider is connected to the clamping mechanism. When the coating head contacts the clamping mechanism, the slider can drive the clamping mechanism to move along the guide rail in a direction perpendicular to the length of the coating head, so that the clamping mechanism fits with both sides of the coating lip of the coating head.

[0011] Preferably, the floating mechanism further comprises a limit block and a limit pin, the limit block is arranged on the bottom plate, the limit pin is connected to the clamping mechanism, a limit slot is arranged on the limit block, the width of the limit slot is greater than the width of the limit pin in the direction perpendicular to the length of the coating head, at least part of the limit pin is arranged in the limit slot, and the limit slot is used to limit the movement range of the limit pin in the direction perpendicular to the length of the coating head;

[0012] The limit pin is directly arranged on the clamping mechanism, or the limit pin is connected to the clamping mechanism through the slider.

[0013] Preferably, the wiping assembly also includes a wiping portion arranged on the side of the clamping mechanism facing the coating head, the wiping portion includes a cleaning block fixedly connected to the clamping mechanism and a cleaning cloth arranged on the side of the cleaning block facing the coating head, and the clamping mechanism can clamp the cleaning block and the cleaning cloth on both sides of the coating lip of the coating head.

[0014] Preferably, the wiping assembly also includes a winding mechanism, which includes a first reel and a second reel, the first reel is used to install unused cleaning cloth, the second reel is used to recycle used cleaning cloth, and a pressure wheel and a conveying wheel are arranged near the second reel, the pressure wheel and the conveying wheel are used to clamp the used cleaning cloth and apply a clamping force to the used cleaning cloth to avoid the used cleaning cloth from moving toward the coating head when the coating head applies pressure to the unused cleaning cloth.

[0015] Preferably, the winding mechanism further comprises a swing arm connected to the pressure wheel, an elastic part connected to the swing arm, and a first driving assembly, wherein the elastic part provides pressure applied to the cleaning cloth by the pressure wheel through the swing arm, and the first driving assembly is used to switch the used cleaning cloth above the clamping mechanism to an unused cleaning cloth;

[0016] The first driving assembly includes a first driving belt, a first driving wheel, a second driving belt, a second driving wheel and a first driving unit. The first driving unit drives the conveying wheel to rotate through the first driving belt and the first driving wheel. The first driving unit drives the second reel to rotate through the second driving belt and the second driving wheel.

[0017] Preferably, the second driving belt can slip relative to the second driving wheel to adjust the difference between the linear speed of the pressing wheel and the linear speed of the cleaning cloth on the second reel;

[0018] The clamping force exerted on the cleaning cloth by the pressure wheel and the conveying wheel is greater than the driving force applied by the second driving belt to the second reel, and the first driving assembly also includes a tensioning wheel, which is slidably connected to the second driving belt, and the driving force applied by the second driving belt to the second reel is adjusted by adjusting the position between the tensioning wheel and the second driving belt.

[0019] Preferably, the cleaning block is made of elastic and soft rubber or silicone, and the cleaning cloth is a woven fabric with warp and weft.

[0020] Preferably, the clamping mechanism comprises a clamping part, an execution part and a protective shell, the execution part is used to control the clamping part to clamp on both sides of the coating lip of the coating head, and the protective shell cover is arranged on the execution part.

[0021] Preferably, it further comprises a second driving assembly, which comprises a linear module extending along the length direction of the coating head and a second driving part, and the second driving part is used for driving the spraying assembly and the wiping assembly to move back and forth on the linear module.

[0022] Preferably, the spray assembly also includes a liquid flow trough arranged below the nozzle, and a liquid receiving trough is arranged below the liquid flow trough. Both the liquid flow trough and the liquid receiving trough are used to hold waste liquid. The waste liquid in the liquid flow trough can flow into the liquid receiving trough, and the liquid receiving trough is provided with a drain port for discharging the waste liquid.

[0023] Compared with the prior art, the beneficial effects of the present invention include at least:

[0024] The coating head cleaning device of the present invention realizes automatic cleaning of the coating head by enabling the spray component and the wiping component to move relative to the coating head in the length direction of the coating head, which not only ensures the consistency of the cleaning effect, thereby ensuring the coating quality, but also avoids damage to the coating head due to operating techniques, ensures the performance of the coating head and extends the service life of the coating head, while avoiding or reducing downtime and improving the coating head efficiency of the coating head. In addition, the cleaning device can be suitable for cleaning coating liquids of different viscosities, and can be cleaned only by the wiping component, or the spray component and the wiping component can cooperate with each other for cleaning. By arranging the clamping mechanism on the floating mechanism, when the coating head contacts the clamping mechanism, the clamping mechanism can move on the floating mechanism, so that the centers of the clamping mechanism and the coating head coincide with each other, thereby making the clamping mechanism fit with both sides of the coating lip of the coating head, thereby ensuring the cleaning effect, and at the same time reducing the alignment requirements of the coating head and the wiping assembly, greatly reducing the installation and commissioning time of the clamping mechanism and the coating head, especially when the clamping mechanism needs to be replaced or maintained regularly, so that the replacement and adjustment time is greatly shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a cleaning device and a coating head according to an embodiment of the present invention from one viewing angle.

[0026] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the cleaning device and the coating head of an embodiment of the present invention from another perspective.

[0028] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure when the cleaning device of the embodiment of the present invention is only provided with a wiping component.

[0030] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the cleaning device according to an embodiment of the present invention when a spray component and a wiping component are provided at the same time.

[0032] Figure 8 yes Figure 7 A partial enlarged view of point D in the middle.

[0033] In the figure: 100, cleaning device; 1, spray assembly; 11, nozzle; 12, liquid flow groove; 2, wiping assembly; 21, clamping mechanism; 211, clamping part; 212, execution part; 213, protective shell; 22, floating mechanism; 221, bottom plate; 222, guide rail; 223, slider; 224, limit block; 2241, limit groove; 225, limit pin; 23, wiping part; 231, cleaning block; 232, cleaning cloth; 24, winding mechanism; 241, first reel; 242, second reel Axis; 243, pressure wheel; 244, conveying wheel; 245, swing arm; 246, elastic part; 247, first driving component; 2471, first driving belt; 2472, first driving wheel; 2473, second driving belt; 2474, second driving wheel; 2475, first driving part; 2476, third driving wheel; 2477, tensioning wheel; 3, second driving component; 31, linear module; 32, second driving part; 4, liquid collecting tank; 41, liquid discharge port; 200, coating head; 210, coating lip. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0035] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present invention.

[0036] refer to Figures 1 to 8 The present invention provides a coating head cleaning device 100, comprising: a spray assembly 1 and a wiping assembly 2, the spray assembly 1 and the wiping assembly 2 can be arranged below the coating head 200, the spray assembly 1 can spray cleaning liquid on both sides of the coating lip 210 of the coating head 200, and the wiping assembly 2 can remove the cleaning liquid and / or coating liquid on both sides of the coating lip 210 of the coating head 200. The cleaning device 100 can also include a second driving assembly 3, the second driving assembly 3 can drive the spray assembly 1 and the wiping assembly 2 to move relative to the coating head 200 in the length direction of the coating head 200.

[0037] Specifically, refer to Figure 7 , Figure 8The spray assembly 1 may include a spray head 11, which is used to spray cleaning liquid on both sides of the coating lip 210 of the coating head 200. The number of the spray heads 11 is preferably multiple, and the multiple spray heads 11 can be divided into two rows that are arranged opposite to each other. The two rows of spray heads 11 are respectively arranged on both sides of the coating lip 210 of the coating head 200, and the two rows of spray heads 11 can spray the coating liquid on both sides of the coating lip 210 of the coating head 200. To a certain extent, the cleaning liquid also has a certain flushing effect on the coating liquid. In order to reduce the amount of cleaning liquid used, the cleaning liquid mainly dilutes or decomposes the coating liquid on the coating lip 210, so that the wiping assembly 2 can more easily remove the coating liquid, thereby improving the cleaning effect.

[0038] As a preferred method, refer to Figure 8 The spray assembly 1 may also include a liquid flow trough 12 disposed below the nozzle 11, and a liquid receiving trough 4 may be disposed below the liquid flow trough 12. The liquid receiving trough 4 is rectangular in shape and extends along the length direction of the coating head 200. The liquid flow trough 12 and the liquid receiving trough 4 are both used to hold waste liquid. The waste liquid in the liquid flow trough 12 can flow into the liquid receiving trough 4, and the liquid receiving trough 4 may be provided with a liquid discharge port 41 for the waste liquid to be discharged. The liquid flow trough 12 may be V-shaped as a whole, and the liquid flow trough 12 may prevent the cleaning liquid from splashing to other positions of the cleaning device 100 when the nozzle 11 is spraying. In the running direction of the spray assembly 1, at least one end of the liquid flow trough 12 is closed, and one end is provided with an opening (not shown) for the waste liquid in the liquid flow trough 12 to flow out, and the waste liquid in the liquid flow trough 12 can flow into the liquid receiving trough 4 through the opening.

[0039] refer to Figure 5 , Figure 6 The wiping assembly 2 may include a clamping mechanism 21 and a floating mechanism 22. The clamping mechanism 21 may be disposed on the floating mechanism 22. The clamping mechanism 21 may be attached to both sides of the coating lip 210 of the coating head 200 and used to remove the cleaning liquid and / or coating liquid on both sides of the coating lip 210 of the coating head 200. Specifically, refer to Figure 8 The clamping mechanism 21 may include a clamping portion 211, an execution portion 212 and a protective shell 213. The execution portion 212 is used to control the clamping portion 211 to clamp on both sides of the coating lip 210 of the coating head 200. The clamping portion 211 has a clamping area corresponding to the coating lip 210 of the coating head 200. The protective shell 213 is covered on the execution portion 212. The protective shell 213 can prevent the coating liquid or the cleaning liquid from splashing onto the execution portion 212 to avoid the execution portion 212 being affected by the coating liquid or the cleaning liquid, thereby ensuring the performance and service life of the execution portion 212.

[0040] For coating liquids with low viscosity and easy to remove, the wiping component 2 can be used for cleaning, so that the amount of cleaning liquid used can be reduced while ensuring the cleaning effect. As an example, the wiping component 2 can clean the coating head 200 once or multiple times. For coating liquids with high viscosity and difficult to remove, the spray component 1 and the wiping component 2 can cooperate with each other to clean, so that the cleaning effect can be ensured, thereby improving the coating quality. As an example, the wiping component 2 first wipes and cleans the coating head 200 for the first time, at least part of the coating liquid can be removed, and then the spray component 1 sprays the cleaning liquid on the coating head 200, and the cleaning liquid can dilute or decompose the residual coating liquid, and then the wiping component 2 wipes and cleans the coating head 200 for the second time, and the residual coating liquid and the cleaning liquid can be removed together. Of course, in some cases, the wiping component 2 can also perform multiple wiping cleanings and the spray component 1 can spray the cleaning liquid multiple times. In other words, the cleaning device 100 of the present application can be applied to the cleaning of coating liquids of different viscosities.

[0041] As a preferred method, refer to Figure 6 , Figure 8 The wiping assembly 2 may also include a wiping portion 23 disposed on the side of the clamping mechanism 21 facing the coating head 200, that is, the wiping portion 23 may be disposed in the clamping area, and the wiping portion 23 may include a cleaning block 231 fixedly connected to the clamping mechanism 21 and a cleaning cloth 232 disposed on the side of the cleaning block 231 facing the coating head 200, and the clamping mechanism 21 can clamp the cleaning block 231 and the cleaning cloth 232 on both sides of the coating lip 210 of the coating head 200. Specifically, the cleaning block 231 may be fixedly disposed on the clamping portion 211, and the cleaning block 231 is preferably made of elastic and soft rubber or silicone. When the coating head 200 presses down on the cleaning block 231, the cleaning block 231 will be deformed due to extrusion, so that not only the cleaning block 231 can be more closely fitted with the coating head 200, and the cleaning effect can be further improved, but also compared with the cleaning block 231 made of hard material, it can prevent the coating head 200 from being damaged by collision.

[0042] The cleaning cloth 232 is arranged above the cleaning block 231. When the coating head 200 approaches the cleaning block 231, the coating head 200 can press the cleaning cloth 232 onto the cleaning block 231. Since the cleaning block 231 is elastic and soft rubber or silicone, when the coating head 200 presses down on the cleaning block 231, the cleaning block 231 will be deformed due to the extrusion, so that the cleaning cloth 232 can be better fitted on the coating head 200, and the friction between the cleaning cloth 232 and the coating head 200 can be increased, thereby improving the cleaning effect of the cleaning cloth 232. The cleaning cloth 232 is preferably a woven fabric with warp and weft. The cleaning cloth 232 is, for example, a dust-free cloth. Since the cleaning cloth 232 has multiple warps and wefts, the multiple warps or wefts can form multiple contact lines with the coating head 200 to achieve the effect of multiple wiping, which helps to improve the cleaning effect. For coating liquid with low viscosity, the coating liquid can be directly transferred by adsorption through capillaries, so that the coating liquid can be wiped off. For coating liquid with high viscosity, after the first wiping, there will be a very small amount of residue on the lip 210, and then the residue on the lip 210 can be diluted by spraying cleaning liquid. The spraying here only needs to spray a certain amount of cleaning liquid on the lip 210, and then the cleaning cloth 232 is clamped by the clamping part 211 for the second wiping.

[0043] Among them, reference Figure 6 The floating mechanism 22 may include a bottom plate 221, a guide rail 222 and a slider 223. The guide rail 222 may be arranged on the bottom plate 221. The guide rail 222 extends in a direction perpendicular to the length of the coating head 200. The slider 223 may be slidably arranged on the guide rail 222. The slider 223 is connected to the clamping mechanism 21. The slider 223 may drive the clamping mechanism 21 to move along the guide rail 222. When the coating head 200 contacts the clamping mechanism 21, the slider 223 may drive the clamping mechanism 21 to move along the guide rail 222 in a direction perpendicular to the length of the coating head 200, so that the centers of the clamping mechanism 21 and the coating head 200 coincide with each other, so that the clamping mechanism 21 and the coating lip 210 of the coating head 200 are in contact with each other, that is, the clamping mechanism 21 and the coating lip 210 of the coating head 200 are in closer contact with each other, so that the cleaning effect of the clamping mechanism 21 can be improved, thereby improving the coating quality.

[0044] In the length direction of the coating head 200, the spray assembly 1 and the wiping assembly 2 can move relative to the coating head 200, so as to realize automatic cleaning of the coating head 200. That is to say, when the coating head 200 is stationary, the spray assembly 1 and the wiping assembly 2 can move along the length direction of the coating head 200 and clean the coating head 200, or, when the spray assembly 1 and the wiping assembly 2 are stationary, the coating head 200 can move in the length direction of the coating head 200 so that the spray assembly 1 and the wiping assembly 2 can clean the coating head 200. In this embodiment, the spray assembly 1 and the wiping assembly 2 can move along the length direction of the coating head 200 and clean the coating head 200. The cleaning device 100 may also include a second drive assembly 3, which may include a linear module 31 extending along the length direction of the coating head 200 and a second drive unit 32. The second drive unit 32 is, for example, a motor, and the second drive unit 32 is used to drive the spray assembly 1 and the wiping assembly 2 to move back and forth on the linear module 31.

[0045] As a preferred method, refer to Figure 4 The bottom plate 221 can be connected to the linear module 31, and the second driving unit 32 can drive the bottom plate 221 to drive the clamping mechanism 21 to move back and forth on the linear module 31. During the movement of the clamping mechanism 21, the clamping mechanism 21 can wipe and clean the coating head 200.

[0046] refer to Figure 8 The spray assembly 1 can also be arranged on the bottom plate 221, that is, the second driving part 32 can drive the bottom plate 221 to drive the clamping mechanism 21 and the spray assembly 1 to move back and forth on the linear module 31 at the same time. This not only simplifies the structure of the cleaning device 100, but also the clamping mechanism 21 and the spray assembly 1 can clean the coating head 200 at the same time, which can improve the cleaning efficiency and cleaning effect.

[0047] In this embodiment, the coating head 200 is automatically cleaned by allowing the spray assembly 1 and the wiping assembly 2 to move relative to the coating head 200 in the length direction of the coating head 200, which not only ensures the consistency of the cleaning effect, thereby ensuring the coating quality, but also avoids damage to the coating head 200 due to operating problems, ensures the performance of the coating head 200 and extends the service life of the coating head 200, while avoiding or reducing downtime and improving the coating head 200 efficiency. In addition, the cleaning device 100 can be applied to the cleaning of coating liquids of different viscosities, and can be cleaned only by the wiping assembly 2, or the spray assembly 1 and the wiping assembly 2 can be cleaned in cooperation with each other. By setting the clamping mechanism 21 on the floating mechanism 22, when the coating head 200 contacts the clamping mechanism 21, the clamping mechanism 21 can move on the floating mechanism 22, so that the centers of the clamping mechanism 21 and the coating head 200 coincide with each other, so that the clamping mechanism 21 fits with both sides of the coating lip 210 of the coating head 200, thereby ensuring the cleaning effect and reducing the alignment requirements of the coating head 200 and the wiping assembly 2, greatly reducing the installation and commissioning time of the clamping mechanism 21 and the coating head 200, especially when the clamping mechanism 21 needs to be replaced or maintained regularly, so that the replacement and adjustment time is greatly shortened.

[0048] In one embodiment, reference Figure 6 The floating mechanism 22 may further include a limit block 224 and a limit pin 225. The limit block 224 may be disposed on the bottom plate 221. The limit pin 225 may be connected to the clamping mechanism 21. The limit pin 225 may be directly disposed on the clamping mechanism 21, or the limit pin 225 may be connected to the clamping mechanism 21 through a slider 223. A limit groove 2241 may be disposed on the limit block 224. In a direction perpendicular to the length of the coating head 200, the width of the limit groove 2241 is greater than the width of the limit pin 225. At least part of the limit pin 225 may be disposed in the limit groove 2241. The limit groove 2241 is used to limit the moving range of the limit pin 225 in a direction perpendicular to the length of the coating head 200. That is to say, the movable range of the limit block 224 is the width of the limit groove 2241 in the direction perpendicular to the length of the coating head 200, which determines the moving range of the clamping mechanism 21. This can prevent the clamping mechanism 21 from deviating too much from the coating head 200, which may cause a collision between the clamping mechanism 21 and the coating head 200. This can ensure that the clamping mechanism 21 and the coating head 200 are easily aligned, while protecting the coating head 200 and the clamping mechanism 21.

[0049] In one embodiment, reference Figures 1 to 4The wiping assembly 2 may further include a winding mechanism 24, which may include a first reel 241 and a second reel 242. The first reel 241 is used to install an unused cleaning cloth 232, and the second reel 242 is used to recycle the used cleaning cloth 232. That is, one end of the cleaning cloth 232 is wound around the first reel 241, and the other end of the cleaning cloth 232 is wound around the second reel 242. The cleaning cloth 232 between the first reel 241 and the second reel 242 may be located above the cleaning block 231, and the cleaning cloth 232 above the cleaning block 231 is unused. When the first reel 241 and the second reel 242 rotate, the unused cleaning cloth 232 may be transported to the top of the cleaning block 231 and the used cleaning cloth 232 may be recycled, thereby realizing the replacement of the cleaning cloth 232 above the cleaning block 231. Before the coating head 200 contacts the cleaning cloth 232 , the cleaning cloth 232 located above the cleaning block 231 is preferably in a stretched state, so as to ensure a closer fit between the cleaning cloth 232 and the coating head 200 .

[0050] As a preferred method, refer to Figure 2 A pressure wheel 243 and a conveying wheel 244 may be provided near the second reel 242. The pressure wheel 243 and the conveying wheel 244 are used to clamp the used cleaning cloth 232 and apply a clamping force to the used cleaning cloth 232, that is, the pressure wheel 243 and the conveying wheel 244 are clamped on both sides of the cleaning cloth 232, respectively, to prevent the used cleaning cloth 232 from moving toward the coating head 200 when the coating head 200 applies pressure to the unused cleaning cloth 232. When the coating head 200 presses down the cleaning cloth 232, the cleaning cloth 232 will be subjected to a pulling force. Since the pressure wheel 243 and the conveying wheel 244 clamp the used cleaning cloth 232, the used cleaning cloth 232 will not move backward, that is, the used cleaning cloth 232 will not contact the coating head 200 again, thereby preventing the used cleaning cloth 232 from contaminating the coating head 200, thereby ensuring the cleaning effect. The clamping force applied by the pressure wheel 243 and the conveying wheel 244 to the cleaning cloth 232 is greater than the pulling force of the first reel 241 on the cleaning cloth 232, that is, when the coating head 200 presses down the cleaning cloth 232, the cleaning cloth 232 will be subjected to a pulling force, and the first reel 241 will rotate and convey the unused cleaning cloth 232 to the top of the cleaning block 231.

[0051] As a preferred method, refer to Figure 2 , Figure 4The winding mechanism 24 may further include a swing arm 245 connected to the pressure wheel 243, an elastic part 246 connected to the swing arm 245, and a first driving assembly 247. The elastic part 246 may provide the pressure applied to the cleaning cloth 232 by the pressure wheel 243 through the swing arm 245. The elastic part 246 may be, for example, a tension spring. The pressure applied to the cleaning cloth 232 by the pressure wheel 243 may be adjusted by adjusting the elastic force of the elastic part 246. When the elastic force of the elastic part 246 is greater, the pressure applied to the cleaning cloth 232 by the pressure wheel 243 is greater.

[0052] The first driving assembly 247 is used to switch the used cleaning cloth 232 above the clamping mechanism 21 to an unused cleaning cloth 232, so that the unused cleaning cloth 232 can be used each time the coating head 200 is cleaned, which can not only prevent the used cleaning cloth 232 from contaminating the coating head 200, but also improve the cleaning effect of the cleaning cloth 232. The first driving assembly 247 can drive the conveying wheel 244 and the second reel 242 to rotate, drive the used cleaning cloth 232 to be wound around the second reel 242, and at the same time, under the pulling force of the cleaning cloth 232, the first reel 241 rotates and releases the unused cleaning cloth 232, so that the used cleaning cloth 232 in the clamping area moves toward the second reel 242, and the unused cleaning cloth 232 moves to the clamping area.

[0053] Specifically, refer to Figure 4The first driving assembly 247 may include a first driving belt 2471, a first driving wheel 2472, a second driving belt 2473, a second driving wheel 2474 and a first driving unit 2475. The first driving unit 2475 is, for example, a motor. The first driving unit 2475 may drive the conveying wheel 244 to rotate through the first driving belt 2471 and the first driving wheel 2472. The rotation of the conveying wheel 244 may drive the used cleaning cloth 232 to move toward the second reel 242. The first driving unit 2475 may drive the second reel 242 to rotate through the second driving belt 2473 and the second driving wheel 2474. The rotation of the second reel 242 may recycle the used cleaning cloth 232. In this embodiment, a third driving wheel 2476 is provided on the first driving unit 2475, the first driving wheel 2472 is connected to the conveying wheel 244, the first driving wheel 2472 and the third driving wheel 2476 are, for example, synchronous wheels, the first driving belt 2471 is, for example, a synchronous belt, the first driving belt 2471 is sleeved on the first driving wheel 2472 and the third driving wheel 2476, the second driving wheel 2474 is connected to the second reel 242, the second driving belt 2473 is sleeved on the first driving wheel 2472 and the second driving wheel 2474, the first driving wheel 2472 can be sleeved with the first driving belt 2471 and the second driving belt 2473 at the same time, so that the first driving unit 2475 can simultaneously drive the conveying wheel 244 and the second reel 242 to rotate, and the conveying wheel 244 and the second reel 242 can rotate at the same time.

[0054] As a preferred embodiment, the second driving belt 2473 can slip relative to the second driving wheel 2474 to adjust the difference between the linear velocity of the pressure wheel 243 and the linear velocity of the cleaning cloth 232 on the second reel 242. When the cleaning cloth 232 wound on the second reel 242 increases, the outer diameter of the second reel 242 also increases. Since the first driving unit 2475 drives the conveying wheel 244 and the second reel 242 to rotate at the same time, and the angular velocities of the conveying wheel 244 and the second reel 242 are the same, when the outer diameter of the second reel 242 is larger than the outer diameter of the conveying wheel 244, the linear velocity of the second reel 242 will be larger than the linear velocity of the conveying wheel 244, which will cause the moving speed of the cleaning cloth 232 at the conveying wheel 244 to be smaller than the moving speed of the cleaning cloth 232 at the second reel 242. When the linear velocity of the second reel 242 is greater than the linear velocity of the conveying wheel 244, the second drive belt 2473 can slip relative to the second drive wheel 2474, which is equivalent to reducing the angular velocity of the second reel 242 to reduce the linear velocity of the second reel 242, so that the linear velocity of the second reel 242 is equal to the linear velocity of the conveying wheel 244, thereby making the moving speed of the cleaning cloth 232 at the conveying wheel 244 equal to the moving speed of the cleaning cloth 232 at the second reel 242. The contact surface between the second drive belt 2473 and the second drive wheel 2474 is preferably a smooth contact surface, so that the second drive belt 2473 and the second drive wheel 2474 can run more smoothly.

[0055] In some embodiments, the second drive belt 2473 can also slip relative to the first drive wheel 2472, and the angular velocity of the second reel 242 can also be reduced to reduce the linear velocity of the second reel 242, so that the linear velocity of the second reel 242 is equal to the linear velocity of the conveying wheel 244, so that the moving speed of the cleaning cloth 232 at the conveying wheel 244 is equal to the moving speed of the cleaning cloth 232 at the second reel 242. The contact surface between the second drive belt 2473 and the first drive wheel is preferably a smooth contact surface, so that the second drive belt 2473 and the first drive wheel 2472 can run more smoothly.

[0056] The clamping force of the cleaning cloth 232 by the pressure wheel 243 and the conveying wheel 244 is greater than the driving force applied by the second driving belt 2473 to the second reel 242, and the driving force applied by the second driving belt 2473 to the second reel 242 depends on the driving force applied by the second driving belt 2473 to the second driving wheel 2474. The first driving assembly 247 may also include a tensioning wheel 2477, which may be slidably connected to the second driving belt 2473, and the driving force applied by the second driving belt 2473 to the second reel 242 may be adjusted by adjusting the position between the tensioning wheel 2477 and the second driving belt 2473. By adjusting the position between the tensioning wheel 2477 and the second driving belt 2473, the tightness of the second driving belt 2473 may be adjusted, thereby adjusting the friction between the second driving belt 2473 and the second driving wheel 2474, that is, adjusting the driving force applied by the second driving belt 2473 to the second driving wheel 2474.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A coating head cleaning device, characterized in that: include: A spray assembly, the spray assembly comprising a spray head, the spray head being used to spray a cleaning liquid onto both sides of a coating lip of the coating head; A wiping assembly, the wiping assembly comprising a clamping mechanism and a floating mechanism, the clamping mechanism being arranged on the floating mechanism, the clamping mechanism being able to fit with both sides of the coating lip of the coating head and being used to remove the cleaning liquid and / or coating liquid on both sides of the coating lip of the coating head, and the spraying assembly and the wiping assembly being able to move relative to the coating head in the length direction of the coating head; Wherein, the floating mechanism includes a base plate, a guide rail and a slider, the guide rail is arranged on the base plate, and the slider is connected to the clamping mechanism. When the coating head contacts the clamping mechanism, the slider can drive the clamping mechanism to move along the guide rail in a direction perpendicular to the length of the coating head, so that the clamping mechanism fits with both sides of the coating lip of the coating head.

2. The coating head cleaning device according to claim 1, characterized in that: The floating mechanism further comprises a limit block and a limit pin, wherein the limit block is arranged on the bottom plate, the limit pin is connected to the clamping mechanism, the limit block is provided with a limit slot, in the direction perpendicular to the length of the coating head, the width of the limit slot is greater than the width of the limit pin, at least part of the limit pin is arranged in the limit slot, and the limit slot is used to limit the movement range of the limit pin in the direction perpendicular to the length of the coating head; The limit pin is directly arranged on the clamping mechanism, or the limit pin is connected to the clamping mechanism through the slider.

3. The coating head cleaning device according to claim 1, characterized in that: The wiping assembly also includes a wiping portion arranged on the side of the clamping mechanism facing the coating head, the wiping portion includes a cleaning block fixedly connected to the clamping mechanism and a cleaning cloth arranged on the side of the cleaning block facing the coating head, and the clamping mechanism can clamp the cleaning block and the cleaning cloth on both sides of the coating lip of the coating head.

4. The coating head cleaning device according to claim 3, characterized in that: The wiping assembly also includes a winding mechanism, which includes a first reel and a second reel, wherein the first reel is used to install an unused cleaning cloth, and the second reel is used to recycle the used cleaning cloth, and a pressure wheel and a conveying wheel are arranged near the second reel, and the pressure wheel and the conveying wheel are used to clamp the used cleaning cloth and apply a clamping force to the used cleaning cloth to prevent the used cleaning cloth from moving toward the coating head when the coating head applies pressure to the unused cleaning cloth.

5. The coating head cleaning device according to claim 4, characterized in that: The winding mechanism further comprises a swing arm connected to the pressure wheel, an elastic part connected to the swing arm, and a first driving assembly, wherein the elastic part provides pressure applied to the cleaning cloth by the pressure wheel through the swing arm, and the first driving assembly is used to switch the used cleaning cloth above the clamping mechanism to an unused cleaning cloth; The first driving assembly includes a first driving belt, a first driving wheel, a second driving belt, a second driving wheel and a first driving unit. The first driving unit drives the conveying wheel to rotate through the first driving belt and the first driving wheel. The first driving unit drives the second reel to rotate through the second driving belt and the second driving wheel.

6. The coating head cleaning device according to claim 5, characterized in that: The second driving belt can slip relative to the second driving wheel to adjust the difference between the linear speed of the pressing wheel and the linear speed of the cleaning cloth on the second reel; The clamping force exerted on the cleaning cloth by the pressure wheel and the conveying wheel is greater than the driving force applied by the second driving belt to the second reel, and the first driving assembly also includes a tensioning wheel, which is slidably connected to the second driving belt, and the driving force applied by the second driving belt to the second reel is adjusted by adjusting the position between the tensioning wheel and the second driving belt.

7. The coating head cleaning device according to claim 3, characterized in that: The cleaning block is made of elastic and soft rubber or silicone, and the cleaning cloth is a woven fabric with warp and weft.

8. The coating head cleaning device according to claim 1, characterized in that: The clamping mechanism comprises a clamping part, an execution part and a protective shell. The execution part is used to control the clamping part to clamp at two sides of the coating lip of the coating head, and the protective shell is covered on the execution part.

9. The coating head cleaning device according to claim 1, characterized in that: It also includes a second driving assembly, which includes a linear module extending along the length direction of the coating head and a second driving part, and the second driving part is used to drive the spraying assembly and the wiping assembly to move back and forth on the linear module.

10. The coating head cleaning device according to claim 1, characterized in that: The spray assembly also includes a liquid flow trough arranged below the nozzle, and a liquid receiving trough is arranged below the liquid flow trough. Both the liquid flow trough and the liquid receiving trough are used to hold waste liquid. The waste liquid in the liquid flow trough can flow into the liquid receiving trough, and the liquid receiving trough is provided with a drain port for discharging the waste liquid.

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