Roll cleaning device

Abstract

An example of a roller cleaning device according to the present invention may include: a cleaning head comprising: a cleaning body having a foreign matter suction channel, a cutter mounted on the cleaning body to be able to contact the surface of the roller, and a clamp configured to fix a wiping element to the cleaning body; and a foreign matter suction section connected to the cleaning body to be in fluid communication with the foreign matter suction channel, and configured to suction foreign matter present on the surface of the roller through the foreign matter suction channel.

Description

Technical Field

[0001] The present invention relates to a roller cleaning device that can perform a cleaning process in one step, including scraping foreign matter from the surface of the roller, sucking up the scraped foreign matter, and wiping the surface of the roller.

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0077143, filed on June 13, 2024, the disclosure of which is incorporated herein by reference in its entirety. Background Technology

[0003] Figure 1 This is a view used to illustrate the electrode process in the manufacturing process of secondary batteries.

[0004] Reference Figure 1 In the electrode process, the substrate 1 is manufactured into a coated electrode 3 while traveling from the unwinder 10 to the rewinder 50 in a roll-to-roll manner. The substrate 1 is conveyed by the conveyor 60.

[0005] The unwinder 10 can unwind the substrate 1 in the direction of movement MD. The rewinder 50 can wind the coated electrode 3 while it is in motion.

[0006] The coated electrode 3 includes a substrate 1 and a coating 2. The coated electrode 3 is wound in a roll on a rewinder 50.

[0007] In the section between the unwinder 10 and the rewinder 50, a coating section 20, a drying section 30, and a rolling section 40 are sequentially arranged along the moving direction MD of the substrate 1.

[0008] The coating section 20 is configured to apply slurry to the moving substrate 1. The drying section 30 is configured to provide heat Q to the substrate 1 to which slurry has been applied. The rolling section 40 includes a pair of rolling rollers 41, 42, which are configured to press the moving coating electrode 3 up and down while rotating.

[0009] The conveyor unit 60 includes multiple rollers 61, 63, 65, 67, 68, and 69.

[0010] For example, the substrate 1 can travel from the unwinder 10 toward the rewinder 50 along about 100 or more rollers 61, 63, 65, 67, 68, 69 while passing through the coating section 20, the drying section 30 and the rolling section 40.

[0011] In the electrode process, coating electrode 3 will contaminate rollers 61, 63, 65, 67, 68, and 69 that come into contact with it during travel.

[0012] As mentioned above, contamination of rollers 61, 63, 65, 67, 68, and 69 can damage and contaminate the coated electrode 3, leading to a deterioration in the quality of the coated electrode 3.

[0013] To address this issue, workers routinely use knives to manually scrape away foreign matter formed by solidified slurry from the surfaces of rollers 61, 63, 65, 67, 68, and 69, or use wipes soaked in cleaning fluid to remove foreign matter formed by dried liquid or foreign matter with attached electrode powder.

[0014] However, due to the nature of the electrode process, when manually cleaning the surfaces of rollers 61, 63, 65, 67, 68, and 69, there are often foreign objects in places that workers cannot reach, or it is difficult to clean the high-temperature rollers 61, 63, 65, 67, 68, and 69.

[0015] Furthermore, workers have to change cleaning tools to perform cleaning tasks depending on the type of foreign matter attached to rollers 61, 63, 65, 67, 68, and 69, for example, foreign matter formed by solidified liquid substances, foreign matter formed by solidified slurry, or foreign matter formed by attached electrode powder, which is very inconvenient. Summary of the Invention

[0016] Technical issues

[0017] The present invention is designed to solve these problems. The present invention aims to provide a roller cleaning device that can perform the cleaning processes of scraping foreign objects from the surface of the roller, sucking up the scraped foreign objects, and wiping the surface of the roller in one operation.

[0018] Technical solution

[0019] An example of a roller cleaning device according to the present invention may include: a cleaning head comprising: a cleaning body having a foreign matter suction channel, a cutter mounted on the cleaning body to be able to contact the surface of the roller, and a clamp configured to fix a wiping member to the cleaning body; and a foreign matter suction part connected to the cleaning body to be in fluid communication with the foreign matter suction channel, and configured to suction foreign matter present on the surface of the roller through the foreign matter suction channel.

[0020] Furthermore, a roller cleaning device according to an example of the present invention may include: a cleaning head comprising: a cleaning body having a foreign matter suction channel and a cleaning liquid channel separated from the foreign matter suction channel; a cutter mounted on the cleaning body to be able to contact the surface of the roller; and a clamp configured to fix a wiping member to the cleaning body; and a foreign matter suction part connected to the cleaning body to be in fluid communication with the foreign matter suction channel and configured to suction foreign matter present on the surface of the roller through the foreign matter suction channel.

[0021] The cleaning body may include a first sidewall surrounding the blade and a second sidewall facing the first sidewall and on which the wiping element is mounted, and the blade and the wiping element may be configured to contact the surface of the roller.

[0022] The cleaning body may include a lower surface connecting the first sidewall and the second sidewall, and the cutter may be mounted on the cleaning body to protrude further toward the roller than the lower surface, and the cleaning body may be configured such that when the cutter contacts the surface of the roller, a space is formed between a portion of the surface of the roller and the lower surface.

[0023] The cleaning body can be configured such that the foreign object suction channel penetrates the lower surface between the blade and the first sidewall.

[0024] The foreign object suction unit may include an extension tube that is fluidly connected to the foreign object suction channel and is detachably connected to the cleaning body. The extension tube may be provided with a handle, which may be located at a position spaced apart from the roller, thereby enabling adjustment of the position of the cleaning head placed on the surface of the roller.

[0025] The foreign object suction unit may include: a foreign object container configured to contain foreign objects; a bellows detachably connected to the foreign object container and the extension tube, and fluidly connected to the foreign object suction channel via the extension tube; and a suction drive unit operated to evacuate the foreign object container, the bellows, and the extension tube by suctioning air from the foreign object container.

[0026] The roller cleaning device may include a support member configured to accommodate the extension tube, and may also include a height adjustment unit configured to adjust the height of the support member in a vertical direction perpendicular to the ground.

[0027] The support member can be configured to guide the movement of the extension tube, enabling the extension tube to move back and forth along the length of the roller.

[0028] The cleaning fluid channel can be configured to penetrate the lower surface of the cleaning body while being separated from the foreign matter suction channel. Furthermore, cleaning fluid can be supplied to the surface of the roller through the cleaning fluid channel.

[0029] The cleaning head may further include a droplet portion, which is mounted on the cleaning body to discharge the cleaning liquid in the form of droplets from the cleaning liquid channel.

[0030] The cleaning head may further include a nozzle connected to the cleaning fluid channel and mounted on the lower surface of the cleaning body to spray the cleaning fluid onto the surface of the roller.

[0031] In addition, the roller cleaning device may also include a cleaning fluid supply unit, which is installed on the cleaning body to be in fluid communication with the cleaning fluid channel and is configured to supply the cleaning fluid.

[0032] The cleaning fluid supply unit may include: a cleaning fluid supply pipe, which is fluidly connected to the cleaning fluid channel and detachably connected to the cleaning body; a cleaning fluid container for storing the cleaning fluid; and a cleaning fluid drive unit, which is connected to the cleaning fluid container and the cleaning fluid supply pipe, and is configured to draw the cleaning fluid from the cleaning fluid container and discharge the cleaning fluid into the cleaning fluid supply pipe.

[0033] The cleaning fluid supply tube can be installed on the extension tube of the foreign object suction unit and can be configured to move together with the extension tube.

[0034] The clamp can be mounted on the upper surface of the cleaning body opposite to the lower surface, and can be configured to fix the two ends of the wiping member mounted on the second sidewall to the upper surface of the cleaning body respectively.

[0035] The clamp may include: a pressure bar configured to fix one end of the wiping member to the upper surface of the cleaning body, and a fixed shaft connecting the pressure bar and the cleaning body and elastically connected to the cleaning body.

[0036] The cleaning body may include a third sidewall and a fourth sidewall that connect the first sidewall and the second sidewall and are positioned facing each other, and may also include a bearing member mounted on the third sidewall and the fourth sidewall and configured to idle along the surface of the roller when the cleaning body moves.

[0037] The wiping element can be configured to absorb liquid present on the surface of the roller.

[0038] The cutting tool may have a lower hardness than the roller.

[0039] The roller cleaning device may further include a cleaning fluid supply section configured to spray cleaning fluid from the outside of the cleaning body onto the surface of the roller.

[0040] Beneficial effects

[0041] As described above, the roller cleaning device involved in at least one example of the present invention has the following effects.

[0042] The roller cleaning device can simultaneously scrape foreign objects from the surface of the roller and wipe the roller surface using the rotational force of the roller, with the blades and wiping components of the cleaning head in contact with the surface of the roller.

[0043] In addition, the roller cleaning device can shorten the cleaning time of the roller by performing a cleaning process in one go, which includes scraping foreign objects from the surface of the roller, sucking up the scraped foreign objects, and wiping the surface of the roller.

[0044] In addition, the roller cleaning device can prevent foreign objects from remaining on the corresponding roller or contaminating the area around the roller by scraping foreign objects from the surface of the roller with a blade and sucking them out through a foreign object suction channel provided in the cleaning head.

[0045] Furthermore, the roller cleaning device can thoroughly clean foreign matter remaining on the surface of the roller by supplying cleaning fluid to the surface of the roller and wiping the surface of the rotating roller with a wiping member that absorbs the cleaning fluid while in contact with the surface of the roller.

[0046] In addition, the extension tube of the foreign matter suction unit can adjust the position of the cleaning head at a location far from the roller, thereby cleaning the high-temperature rollers located in the drying section and at the rear end of the drying section, as well as the rollers located in narrow spaces.

[0047] In addition, the roller cleaning device can clean the rollers during the travel of the coated electrodes, thereby preventing a decrease in the productivity of the coated electrodes due to the cleaning of the rollers.

[0048] In addition, the quality of the coated electrodes can be prevented from deteriorating by cleaning the rollers. Attached Figure Description

[0049] Figure 1 This is a schematic view illustrating the electrode process.

[0050] Figure 2 This is a schematic view showing the installation state of the roller cleaning device according to a first example of the invention mounted on a roller.

[0051] Figure 3 This is a perspective view schematically showing a cleaning head according to a first example of the invention.

[0052] Figure 4 yes Figure 3 AA cross-section view.

[0053] Figure 5 and Figure 6 yes Figure 3 BB cross-section, in which Figure 5This is a view used to illustrate the structure of a cleaning head according to an example, which is configured to discharge cleaning fluid in droplet form. Figure 6 This is a view used to illustrate the structure of a cleaning head according to another example, which is configured to spray cleaning fluid onto the surface of the roller from the inside.

[0054] Figure 7 This is a diagram showing the arrangement of the cleaning heads when cleaning the rollers during the travel of the coated electrodes.

[0055] Figure 8 This is an installation diagram of a cleaning head, which is equipped with a bearing component, mounted on a roller, according to the second example.

[0056] Figure 9 This is a view used to illustrate the structure of a cleaning head according to the third example, which is configured to spray cleaning fluid on the outside. Detailed Implementation

[0057] In the following description, an example of a roller cleaning apparatus according to the present invention will be described with reference to the accompanying drawings.

[0058] The roller cleaning device of the present invention can be used to clean the rollers that guide the coated electrodes during the electrode process.

[0059] Before describing the roller cleaning device, the electrode process will be described as follows.

[0060] Reference Figure 1 In the electrode process, the substrate 1 is connected to the unwinder 10 and the rewinder 50 in a roll-to-roll manner, and is manufactured into a coated electrode 3 while sequentially passing through the coating section 20, the drying section 30 and the rolling section 40 in the moving direction MD from the unwinder 10 to the rewinder 50. The coated electrode 3 is wound onto the rewinder 50 in the form of an electrode roll.

[0061] The coating section 20 is configured to apply slurry to a moving substrate 1. The drying section 30 is provided at the rear end of the coating section 20 to provide heat Q to the substrate 1 to which the slurry has been applied. The slurry applied to the substrate 1 is dried as it passes through the drying section 30, thereby forming a coating 2.

[0062] The roller pressing section 40 is located at the rear end of the drying section 30. The pair of rollers 41 and 42 of the roller pressing section 40 can press the coating electrode 3 up and down while rotating in opposite directions, thereby pressing the coating 2.

[0063] The coated electrode 3 can be rolled while passing through the rolling section 40, and can be wound onto the rewinder 50 in the form of an electrode roll.

[0064] The coated electrode 3 travels sequentially through the coating section 20, the drying section 30, and the rolling section 40 while moving along multiple rollers 61, 63, 65, 67, 68, and 69 disposed between the unwinder 10 and the rewinder 50. During this process, the rollers 61, 63, 65, 67, 68, and 69 may become contaminated.

[0065] In the electrode process, the transfer unit 60 may include multiple rollers 61, 63, 65, 67, 68, and 69, and the transfer unit 60 may be configured in a roller-to-roll manner. The number of rollers used in the transfer unit 60 may be approximately 100 or more. The multiple rollers 61, 63, 65, 67, 68, and 69 may be classified as first roller 61 to sixth roller 69 according to their mounting positions in the direction from the coating unit 20 toward the rolling unit 40.

[0066] The first roller 61 is disposed at the front end of the drying section 30. The second roller 63 is disposed in the drying section 30. The third roller 65 is disposed at the rear end of the drying section 30. The fourth roller 67 is configured to guide the movement of the coating electrode 3 while in contact with the coating 2 between the drying section 30 and the rolling section 40. The fifth roller 68 is disposed at the front end of the rolling section 40. The sixth roller 69 is disposed at the rear end of the rolling section 40.

[0067] Foreign matter on the first roller 61 and the second roller 63 may be liquid substances flowing out of the slurry. Foreign matter on the second roller 65 to the sixth roller 69 may be electrode powder that has detached from the coating 2 when the slurry is over-dried. Foreign matter on the fourth roller 67 may be foreign matter caused by insufficiently dried slurry.

[0068] Regardless of the installation position of the rollers or the type of foreign matter P: P1, P2 present on the surface of the rollers, the roller cleaning device according to this example can clean the rollers 61, 63, 65, 67, 68, and 69 that constitute the conveyor section 60.

[0069] Figure 2 This is a schematic view showing the installation state of the roller cleaning device according to a first example of the invention mounted on a roller. Figure 3 This is a perspective view schematically showing a cleaning head according to a first example of the invention. Figure 4 yes Figure 3 AA cross-section view.

[0070] Reference Figures 2 to 4 The roller cleaning device 100 includes a cleaning head 200, which includes: a cleaning body 210 having a foreign matter suction channel 217, a cutter 270 mounted on the cleaning body 210 to be able to contact the surface of the roller (61, 63, 65, 67, 68 or 69), and a clamp 240 configured to fix the wiping element to the cleaning body 210.

[0071] In addition, the roller cleaning device 100 includes a foreign matter suction unit 300, which is connected to the cleaning body 210 to be in fluid communication with the foreign matter suction channel 217, and is configured to suction foreign matter P present on the surface of the rollers (any one of 61, 63, 65, 67, 68 or 69) through the foreign matter suction channel 217.

[0072] In addition, the roller cleaning device 100 includes a cleaning fluid supply unit 400, which is configured to supply cleaning fluid W1 to the surface of the roller (any one of 61, 63, 65, 67, 68 or 69).

[0073] The roller cleaning device 100 is a device for individually cleaning rollers 61, 63, 65, 67, 68, or 69 that constitute the conveyor section 60. For ease of explanation, the example of cleaning the fourth roller 67, which is most frequently contaminated by foreign matter P, will be used as an example, and the roller will be referred to as 67 in the following text.

[0074] In the following text, reference will be made to Figure 3 and Figure 4 Describe the configuration and structure of the cleaning head 200.

[0075] Reference Figure 3 The cleaning body 210 has a cylindrical shape. The cleaning body 210 has multiple sidewalls 213, 214, 215a, 215b facing different directions along the outer periphery; and an upper surface 216ba and a lower surface 216a connecting the multiple sidewalls 213, 214, 215a, 215b and arranged to face each other.

[0076] Multiple sidewalls 213, 214, 215a, 215b include a first sidewall 213 to a fourth sidewall 215b. The first sidewall 213 and the second sidewall 214 are configured to face each other. The third sidewall 215a and the fourth sidewall 215b connect the first sidewall 213 and the second sidewall 214 and are configured to face each other.

[0077] The lower surface 216a has a structure in which at least a portion of its area is open toward the roller 67. The lower ends of the respective sidewalls adjacent to the roller 67 may form the edges of the lower surface 216a.

[0078] The first sidewall 213 and the second sidewall 214 can be configured to protrude further toward the roller 67 than the third sidewall 215a and the fourth sidewall 215b, respectively.

[0079] Reference Figure 4The cleaning body 210 is configured such that when the first sidewall 213 and the second sidewall 214 on which the wiping member 280 is mounted come into contact with the surface of the roller 67, a space S is formed between a portion of the lower surface 216a of the cleaning body 210 and the surface of the roller 67. For example, the third sidewall 215a and the fourth sidewall 215b are spaced apart from the surface of the roller 67.

[0080] The first sidewall 213 is configured to contact the surface of the roller 67. The first sidewall 213 protrudes further into the roller 67 than the third sidewall 215a and the fourth sidewall 215b. The first sidewall 213 is configured to surround the cutter 270.

[0081] The cutter 270 is mounted on the cleaning body 210 and protrudes from the lower surface 216a of the cleaning body 210. The cutter 270 may comprise a material with a lower hardness than the roller 67 to prevent damage to the roller 67 when scraping foreign matter P from the surface of the roller 67.

[0082] When the surface of roller 67 is chrome-plated, the cutter 270 preferably has a hardness lower than that of the chrome plating. As an example, the cutter 270 can be made of materials such as Bakelite, hard Teflon, Monomer Casting Nylon (MC Nylon), acetal, or stainless steel. MC Nylon is a high-performance plastic used in mechanical parts and industrial products.

[0083] The second sidewall 214 protrudes further toward the roller 67 than the third sidewall 215a and the fourth sidewall 215b. (Refer to...) Figure 4 Wiping element 280 is mounted on cleaning body 210 to surround the edge of second sidewall 214.

[0084] Reference Figure 4 The second sidewall 214 is configured such that, taking into account the thickness of the wiping member 280, when the wiping member 280 is installed, the wiping member 280 contacts the surface of the roller 67 together with the first sidewall 213; when the wiping member 280 is not installed, a gap G is formed between the second sidewall and the surface of the roller 67. When the wiping member 280 is installed on the second sidewall 214, the wiping member fills the gap G.

[0085] The wiping element 280 can be made of a material capable of absorbing cleaning fluid W1. The wiping element 280 can be in the form of a cloth, non-woven fabric, or sponge. The wiping element 280 can include materials such as nylon, natural pulp, polyester, or ultrafine filaments.

[0086] Reference Figure 3 The upper surface 216ba of the cleaning body 210 is provided with a first fastener 211, a second fastener 212 and a clamp 240.

[0087] The clamp 240 can be configured to fix both ends of the wiping member 280 mounted on the second side wall 214 to the upper surface 216ba of the cleaning body 210.

[0088] In addition, the clamp 240 includes a fixed shaft 243 mounted on the cleaning body 210 and a pressure rod 241 connected to the fixed shaft 243.

[0089] The fixed shaft 243 connects the pressure rod 241 and the cleaning body 210. The fixed shaft 243 can be elastically connected to the cleaning body 210 by a spring 247. Alternatively, the fixed shaft 243 can be bolted to the pressure rod 241 and the cleaning body 210.

[0090] The pressure rod 241 can be mounted on the fixed shaft 243 such that when pressed, the pressure rod contacts the upper surface 216ba of the cleaning body 210, and when the pressure is released, the pressure rod is spaced upward from the upper surface 216ba of the cleaning body 210. The wiping member 280 can be fixed to the upper surface 216a of the cleaning body 210 while the pressure rod 241 is pressed.

[0091] The clamp 240 may include a pair of pressure bars 241 and 242. The pair of pressure bars 241 and 242 may have the same structure and operation method.

[0092] Reference Figure 2 and Figure 3 The second fastener 212 is the part that connects to the cleaning fluid supply pipe 450 of the cleaning fluid supply unit 400.

[0093] Reference Figure 3 and Figure 4 The first fastener 211 is a portion that is fluidly connected to the foreign matter suction channel 217, and it may be configured to protrude from the upper surface 216ba of the cleaning body 210.

[0094] Reference Figure 4 The foreign object suction channel 217 can be configured to penetrate the lower surface 216a between the cutter 270 and the first sidewall 213. The extension tube 350 of the foreign object suction section 300 is fluidly connected to the foreign object suction channel 217 via a first fastener 211.

[0095] In the following text, reference will be made to Figures 2 to 4 Description of the foreign object suction unit 300.

[0096] The foreign object suction unit 300 includes a suction drive unit 310, a first operation unit 320, a foreign object container 330, a bellows tube 340, and an extension tube 350.

[0097] The foreign object container 330 is configured to accommodate the foreign object P. The foreign object container 330 can be detachably installed onto the suction drive unit 310.

[0098] The suction drive unit 310 is operable to evacuate the foreign matter container 330, bellows 340, and extension tube 350 by drawing air from the foreign matter container 330. The first operation unit 320 can operate and stop the suction drive unit 310 by an on-off operation.

[0099] The bellows 340 can be detachably connected to the foreign object container 330 and the extension tube 350. The bellows 340 can be fluidly connected to the foreign object suction channel 217 via the extension tube 350. The bellows 340 is configured to be flexible.

[0100] The extension tube 350 can be detachably attached to the first fastener 211. The extension tube 350 can be fluidly connected to the foreign object suction channel 217 via the first fastener 211.

[0101] The extension tube 350 can be made of a material that is heat-resistant and chemically resistant. Preferably, the extension tube 350 is made of a material that can withstand acetone and alkaline cleaning solutions (NaOH). As examples, the extension tube 350 can be made of materials such as silicone, rubber, resins such as polyurethane, bakelite, hard Teflon, MC nylon (Monomer Casting nylon), or stainless steel.

[0102] Reference Figure 4 The extension tube 350 is connected to the cleaning body 210 via the first fastener 211. When the suction drive unit 310 is in operation, the extension tube 350 is evacuated.

[0103] The suction drive unit 310 can draw foreign matter P from the surface of roller 67 through foreign matter suction channel 217. Foreign matter P can flow along foreign matter suction channel 217, extension tube 350 and bellows 340 due to the negative pressure applied to extension tube 350, and can be contained in foreign matter container 330.

[0104] Reference Figure 2 The extension tube 350 can be positioned at a location spaced apart from the roller 67, thereby allowing adjustment of the position of the cleaning body 210 placed on the surface of the roller 67. The extension tube 350 may be provided with a handle 351. The extension tube 350 can be mounted on the support member 530 of the height adjustment section 500 at a location spaced apart from the roller 67.

[0105] The height adjustment unit 500 is configured to adjust the height of the support member 530 in the height direction H perpendicular to the ground. The height adjustment unit 500 includes the support member 530 and the lifting unit 510.

[0106] The support member 530 may have an upwardly opening U-shaped structure. The support member 530 is configured to accommodate the extension tube 350. The support member 530 may be configured to guide the movement of the extension tube 350, allowing the extension tube 350 to move back and forth along the length direction L of the roller.

[0107] The lifting unit 510 includes a lifting shaft 520 connected to the support member 530. The lifting unit 510 is configured such that the lifting shaft 520 is parallel to the height direction H. The height of the support member 530 can be adjusted by adjusting the length of the lifting shaft 520. As an example, the lifting unit 510 can use a cylinder.

[0108] The height adjustment unit 500 can adjust the height of the extension tube 350 so that the extension tube 350 is positioned parallel to the roller 67 along the length direction L of the roller.

[0109] The worker can adjust the height of the extension tube 350 relative to the ground using the height adjustment unit 500, so that the cleaning head 200 contacts the surface of the roller 67. The extension tube 350 can be positioned parallel to the roller 67 while the cleaning head 200 is in contact with the surface of the roller 67 via the height adjustment unit 500.

[0110] Even when the worker is far away from the roller 67, he can perform the cleaning work on the roller 67 by using the extension tube 350 and the height adjustment part 500 to maintain the contact position between the cleaning head 200 and the surface of the roller 67, that is, the contact position along the height direction H remains unchanged.

[0111] Furthermore, workers can quickly clean the entire surface area of ​​the roller 67 using the cleaning head 200 by simply moving the extension tube 350, which is mounted on the support 530 of the height adjustment section 500, back and forth along the length direction L of the roller.

[0112] Furthermore, even if the cleaning head 200 does not move along the circumferential direction of the roller 67, the blade 270 can scrape away foreign matter P from the surface of the roller 67 under the rotational force of the roller 67, and the wiping member 280 can wipe the surface of the roller 67. This allows the roller cleaning device 100 to clean the entire area of ​​the roller 67 simply by moving the cleaning head 200 back and forth along the length direction L of the roller through the extension tube 350.

[0113] In the following text, reference will be made to Figure 2 and Figure 5 Describe the cleaning fluid supply unit 400 and the droplet unit 294. Figure 5 yes Figure 4 BB cross-section, in which Figure 5 This is a view used to illustrate the structure of a cleaning head 200 according to an example, which is configured to discharge cleaning fluid W1 in droplet form. Figure 6This is a view used to illustrate the structure of a cleaning head 200 according to another example, which is configured to spray cleaning fluid W1 onto the surface of roller 67 from the inside through a nozzle 219.

[0114] Reference Figure 5 and Figure 5 The cleaning body 210 is provided with a cleaning fluid channel 218. The cleaning fluid channel 218 is a channel separated from the foreign matter suction channel 217. The cleaning fluid channel 218 is a channel connecting the second fastener 212 and the lower surface 216a of the cleaning body.

[0115] Cleaning fluid W1 can be supplied to cleaning fluid channel 218 through cleaning fluid supply pipe 450. Cleaning fluid W1 can flow through cleaning fluid channel 218 and fall onto the surface of roller 67.

[0116] As an example, refer to Figure 5 The cleaning body 210 can be configured such that the cleaning fluid W1 is discharged from the cleaning fluid channel 218 in the form of droplets. In this example, for ease of explanation, the configuration that discharges the cleaning fluid W1 from the cleaning fluid channel 218 in the form of droplets is referred to as "droplet section 294".

[0117] The droplet portion 294 may include a cleaning fluid channel 218. Alternatively, the droplet portion 294 may be installed inside the cleaning body 210 to be in fluid communication with the cleaning fluid channel 218. The droplet portion 294 is configured to discharge the cleaning fluid W1 in the form of droplets from the cleaning fluid channel 218 using gravity.

[0118] As another example, see Figure 6 The cleaning fluid W1 can be sprayed onto the surface of the roller 67 through a nozzle 219 mounted on the lower surface 216a of the cleaning body 210. The nozzle 219 is mounted on the lower surface 216a of the cleaning body 210 to be in fluid communication with the cleaning fluid channel 218.

[0119] Specifically, the nozzle 219 is configured to spray cleaning fluid W1 between the cutter 270 and the second sidewall 214 in a direction from the lower surface 216a of the cleaning body 210 toward the surface of the roller 67. The nozzle 219 can spray the cleaning fluid W1 in a spray form. The nozzle 219 can operate to spray the cleaning fluid W1 while the second operation section 431 is open.

[0120] The cleaning head 200 with this structure can prevent the cleaning liquid W1 from scattering around the roller 67 by discharging the cleaning liquid W1 from the space S between the lower surface 216a of the cleaning body 210 and the surface of the roller 67 to the surface of the roller 67.

[0121] The cleaning fluid supply unit 400 is designed to supply cleaning fluid W1 to the cleaning fluid channel 218 of the cleaning head 200. The cleaning fluid supply unit 400 can be installed on the second fastener 212 of the cleaning body 210 to be in fluid communication with the cleaning fluid channel 218.

[0122] Reference Figure 2 and Figure 3 The cleaning fluid supply unit 400 may include a cleaning fluid container 410, a cleaning fluid supply pipe 450, a cleaning fluid drive unit 430, and a connecting pipe 420.

[0123] The cleaning fluid container 410 is a container for storing the cleaning fluid W1. The connecting pipe 420 connects the cleaning fluid drive unit 430 and the cleaning fluid container 410.

[0124] The cleaning fluid drive unit 430 is configured to draw cleaning fluid W1 from the cleaning fluid container 410 and discharge it into the cleaning fluid supply pipe 450. The cleaning fluid drive unit 430 is connected to the connecting pipe 420 and the cleaning fluid supply pipe 450. As an example, the cleaning fluid drive unit 430 can be a pump.

[0125] The cleaning fluid supply tube 450 can be detachably connected to the second fastener 212 of the cleaning body 210. The cleaning fluid supply tube 450 can be provided in the form of a flexible tube. In addition, the cleaning fluid supply tube 450 can be installed on the extension tube 350 of the foreign matter suction unit 300, and can be configured to move together with the extension tube 350.

[0126] The cleaning fluid supply tube 450 can be made of a material that is heat-resistant and chemical-resistant. Preferably, the cleaning fluid supply tube 450 is made of a material that can withstand acetone and alkaline cleaning solutions (NaOH). As an example, the cleaning fluid supply tube 450 can be made of a material such as silicone, rubber, or a resin such as polyurethane.

[0127] The cleaning fluid supply unit 400 can be driven independently of the foreign matter suction unit 300. The cleaning fluid drive unit 430 can be turned on and off via the second operation unit 431.

[0128] When the second operation unit 431 is turned on, the cleaning fluid drive unit 430 operates to draw the cleaning fluid W1 from the cleaning fluid container 410 into the connecting pipe 420 and discharge the cleaning fluid W1 into the cleaning fluid supply pipe 450.

[0129] When the cleaning fluid drive unit 430 is in operation, the cleaning fluid W1 flows along the cleaning fluid supply pipe 450 toward the cleaning head 200. The cleaning fluid W1 can be discharged to the surface of the roller 67 through the cleaning fluid channel 218 of the cleaning head 200. In this example, the cleaning fluid W1 can be discharged to the surface of the roller 67 from the space S between the lower surface 216a of the cleaning body 210 and the surface of the roller 67.

[0130] The cleaning operation of roller 67 can be performed while roller 67 is rotating. The cleaning head 200 keeps the wiping part 280 in contact with the surface of roller 67.

[0131] The cleaning fluid W1 can be absorbed by the wiping member 280 provided in the cleaning head 200 while flowing along the surface of the roller 67. The wiping member 280, which has absorbed the cleaning fluid W1, can clean the surface of the roller 67 in a wet manner. The wiping member 280 can wipe away foreign matter P present on the surface of the roller 67 by utilizing the rotational force of the roller 67 while in contact with the surface of the roller 67.

[0132] When the foreign matter suction unit 300 and the cleaning fluid supply unit 400 are driven together while the cleaning head 200 is in contact with the surface of the rotating roller 67, the roller cleaning device 100 can perform the following steps in one go: scraping foreign matter P from the surface of the rotating roller 67 with the cutter 270, suctioning the scraped foreign matter P with the foreign matter suction unit 300, and wiping the surface of the rotating roller 67 with the wiping member 280 that has absorbed the cleaning fluid W1. Regardless of the type of foreign matter P present on the surface of the roller 67, the roller cleaning device 100 can clean the surface of the roller 67 cleanly.

[0133] Furthermore, even as the coating electrode 3 travels along the roller 67, the cleaning head 200 can be positioned on the remaining areas of the roller 67 that are not in contact with the coating electrode 3, thereby cleaning the roller 67. The roller cleaning device 100 can clean the roller 67 during the electrode process, thereby preventing a decrease in the productivity of the coating electrode 3 due to the cleaning of the roller 67.

[0134] Figure 8 This is an installation diagram of a cleaning head, which is equipped with a bearing component, mounted on a roller, according to the second example.

[0135] The cleaning head 200a according to the second example is a cleaning head obtained by mounting bearing members 291, 292 on the cleaning head 200 of the first example as described above.

[0136] Bearing components 291 and 292 can be mounted on the cleaning body 210 so that the bearing components can idle along the surface of the roller 67 when the cleaning body 210 is placed on the surface of the roller 67. Bearing components 291 and 292 can be mounted on the third sidewall 215a and the fourth sidewall 215b of the cleaning body 210 so that they can contact the surface of the roller 67.

[0137] When the extension tube 350 moves the cleaning body 210 back and forth along the length direction L of the roller, the cleaning head 200a can move smoothly along the surface of the roller 67 through the bearing components 291 and 292.

[0138] The bearing components 291 and 292 reduce the friction between the cleaning body 210 of the cleaning head 200a and the surface of the roller 67, thereby allowing the cleaning head 200a to move smoothly along the surface of the roller 67.

[0139] Figure 9 This is a view used to illustrate the structure of the cleaning head 200b according to the third example, which is configured to spray cleaning fluid on the outside.

[0140] The cleaning head 200b according to this example includes a cleaning body 210b having a first fastener 211. The cleaning body 210b according to this example has a structure that omits the cleaning fluid channel 218 of the cleaning body 210 of the first example as described above.

[0141] The cleaning head 200b is configured such that the blade 270 is mounted on the first sidewall 213 of the cleaning body 210b, and the wiping member 280 can be mounted on the second sidewall 214. The wiping member 280 can be fixed to the upper surface 216ba of the cleaning body 210b by the clamping rod 241 of the clamp.

[0142] In this example, the cleaning fluid supply unit (not shown) is configured to spray cleaning fluid W1 onto the surface of roller 67 via a nozzle 451 located outside the cleaning body 210b. The nozzle 451 is connected to a cleaning fluid supply pipe 450. The cleaning fluid supply pipe 450 can be fixed to an extension pipe 350 for movement together with the extension pipe 350. The extension pipe 350 can be connected to a first fastener 211 of the cleaning body 210b to adjust the position of the cleaning body 210b.

[0143] Compared to the first example of the cleaning head 200a with a built-in nozzle 219 as described above, the cleaning head 200b according to this example reduces the size of the cleaning body 210b by providing the nozzle 451 on the outside of the cleaning body 210b, thereby promoting the compactness of the device.

[0144] In addition, the cleaning fluid W1 is sprayed onto the surface of the roller 67 through the nozzle 451, and then the foreign matter P present on the surface of the roller 67 is scraped off by the cutter 270, which can easily remove the foreign matter P.

[0145] Preferred examples of the invention described above have been disclosed for illustrative purposes. Those skilled in the art can make various modifications, alterations, and additions within the spirit and scope of the invention, and such modifications, alterations, and additions should be considered to fall within the scope of the appended claims.

[0146] Industrial applicability

[0147] According to at least one example of the present invention, a roller cleaning apparatus is capable of simultaneously performing the process of scraping foreign matter from the surface of the roller and wiping the surface of the roller by utilizing the rotational force of the roller, with the cutter and wiping member configured to be in contact with the surface of the roller.

Claims

1. A roller cleaning device, comprising: Cleaning head, the cleaning head comprising: a cleaning body having a foreign matter suction channel and a cleaning liquid channel separated from the foreign matter suction channel; a cutter mounted on the cleaning body to be in contact with a surface of a roller; and a clamp configured to secure a wiping element to the cleaning body; and A foreign object suction unit is connected to the cleaning body to be in fluid communication with the foreign object suction channel, and is configured to suction foreign objects present on the surface of the roller through the foreign object suction channel.

2. The roller cleaning device according to claim 1, wherein... The cleaning body includes a first sidewall surrounding the blade and a second sidewall facing the first sidewall and on which the wiping element is mounted, and the blade and the wiping element are configured to contact the surface of the roller.

3. The roller cleaning device according to claim 2, wherein... The cleaning body includes a lower surface connecting the first sidewall and the second sidewall, and the cutter is mounted on the cleaning body to protrude further toward the roller than the lower surface, and the cleaning body is configured such that when the cutter contacts the surface of the roller, a space is formed between a portion of the surface of the roller and the lower surface.

4. The roller cleaning device according to claim 3, wherein The cleaning body is configured such that the foreign object suction channel extends through the lower surface between the blade and the first sidewall.

5. The roller cleaning device according to claim 1, wherein... The foreign object suction unit includes an extension tube that is fluidly connected to the foreign object suction channel and is detachably connected to the cleaning body. The extension tube is provided with a handle, and the handle is positioned at a distance from the roller, thereby enabling adjustment of the position of the cleaning head placed on the surface of the roller.

6. The roller cleaning device according to claim 5, wherein the foreign matter suction unit comprises: Set as a foreign object container capable of holding foreign objects; A bellows, which is detachably connected to the foreign object container and the extension tube, and is fluidly connected to the foreign object suction channel through the extension tube; as well as The suction drive unit operates such that air is drawn from the foreign object container, causing a vacuum to be created in the foreign object container, the bellows, and the extension tube.

7. The roller cleaning device according to claim 5, comprising: A support member, configured to allow for the placement of the extension tube, and Also includes: The height adjustment unit is configured to adjust the height of the support member in a height direction perpendicular to the ground.

8. The roller cleaning device according to claim 7, wherein The support is configured to guide the movement of the extension tube, enabling the extension tube to move back and forth along the length of the roller.

9. The roller cleaning device according to claim 3, wherein The cleaning fluid channel is configured to penetrate the lower surface of the cleaning body, and the cleaning fluid is supplied to the surface of the roller through the cleaning fluid channel.

10. The roller cleaning device according to claim 9, wherein The cleaning head also includes a droplet section, which is mounted on the cleaning body to discharge the cleaning liquid in the form of droplets from the cleaning liquid channel.

11. The roller cleaning device according to claim 9, wherein The cleaning head also includes a nozzle connected to the cleaning fluid channel and mounted on the lower surface of the cleaning body to spray the cleaning fluid onto the surface of the roller.

12. The roller cleaning device according to claim 9, further comprising: A cleaning fluid supply unit is installed on the cleaning body to be in fluid communication with the cleaning fluid channel and is configured to supply the cleaning fluid.

13. The roller cleaning apparatus according to claim 12, wherein the cleaning fluid supply unit comprises: A cleaning fluid supply pipe is fluidly connected to the cleaning fluid channel and detachably connected to the cleaning body; A cleaning solution container for storing the cleaning solution; as well as A cleaning fluid driving unit is connected to the cleaning fluid container and the cleaning fluid supply pipe, and is configured to draw the cleaning fluid from the cleaning fluid container and discharge the cleaning fluid into the cleaning fluid supply pipe.

14. The roller cleaning device according to claim 3, wherein The clamp is mounted on the upper surface of the cleaning body opposite to the lower surface, and is configured to fix both ends of the wiping member mounted on the second sidewall to the upper surface of the cleaning body, respectively. The clamp comprises: The device is configured to fix one end of the wiping member to the upper surface of the cleaning body, and a fixed shaft that connects the pressure rod and the cleaning body and is elastically connected to the cleaning body.

15. The roller cleaning device according to claim 3, wherein The cleaning body includes a third sidewall and a fourth sidewall that connect the first sidewall and the second sidewall and are positioned facing each other. It also includes bearing components mounted on the third and fourth sidewalls and configured to idle along the surface of the roller as the cleaning body moves.

Images