A release film coating process

Abstract

The present invention relates to the technical field of release film coating processing, specifically a release film coating processing technology, which includes a surface treatment unit and a drying unit. The present invention cleans the surface of a substrate through the surface treatment unit, and smoothes the surface of the cleaned substrate, while scraping off a large amount of water attached to the surface of the substrate, thereby reducing the drying difficulty and the drying workload of the drying unit. During the whole process, the substrate is transported at an angle to allow the water on the surface of the substrate to flow downward rapidly. The used water is filtered and reused to achieve the recycling of water resources and reduce the waste of water resources. The surface of the substrate is dried by the drying unit to facilitate subsequent coating use.

Description

Technical Field

[0001] The present invention relates to the technical field of release film coating and processing, in particular to a release film coating and processing technology. Background Art

[0002] Release film is a film-like material used to prepare materials with a flat surface. It is usually made of one or more polymers. Polymers are the raw materials for the preparation of release film, and the release film coating operation is a processing method of evenly coating the polymer on the surface of the substrate. Its main processing method is: selecting the substrate, pre-treating the substrate surface, coating the pre-treated substrate surface, and peeling off the substrate to prepare the release film.

[0003] The quality of the substrate surface determines the quality of the release film, so the process of pre-treating the substrate surface is particularly important. The traditional method is to directly clean the horizontally unfolded substrate surface and dry the substrate surface, but the whole process wastes a lot of water resources, and water easily accumulates on the substrate surface, resulting in a large processing volume of the drying machine, high difficulty, and a long time. Therefore, the cost of substrate surface pre-treatment is high and the processing efficiency is low. Summary of the Invention

[0004] In view of the above problems, the present invention provides a release film coating process to solve the technical problems of large water waste, high drying difficulty, and large processing volume in the related art. In order to achieve the above objectives, the present invention provides the following technical solutions.

[0005] A first aspect of the present invention provides a release film coating process, which uses a release film coating apparatus. The release film coating apparatus includes a surface treatment unit and a drying unit. The drying unit is provided in the surface treatment unit and is used to dry a substrate after cleaning and smoothing. The specific method for coating a release film using the release film coating apparatus is as follows:

[0006] S1. Select substrate: Select polyethylene film or polytetrafluoroethylene film as the substrate.

[0007] S2. Substrate pretreatment: The surface of the substrate is cleaned, leveled, and dried through the surface treatment unit and the drying unit to ensure that the substrate surface is clean and level, and to remove grease, dust, and other impurities.

[0008] S3. Substrate coating: uniformly coating the polymer material on the surface of the substrate, wherein the polymer material is one or a mixture of polytetrafluoroethylene, polyethylene, polyether ketone, and polyimide.

[0009] S4. Preparation of release film: drying, curing, and peeling the coated substrate in sequence, and peeling the dried and cured release film from the substrate to obtain the desired release film.

[0010] The surface treatment unit includes a cleaning table, a positioning rack for positioning the rolled substrate is rotatably connected to the left side of the cleaning table, a motor 1 is fixedly installed on the rear end of the cleaning table through a motor seat, and the output shaft of the motor 1 is fixedly installed on a conveying rack for conveying the substrate that has been cleaned and leveled and dried by the drying unit through a coupling, a cleaning rack for cleaning the surface of the substrate is fixedly installed on the cleaning table and on the right side of the positioning rack, and a leveling rack for leveling the surface of the cleaned substrate and scraping off water droplets attached to the surface of the substrate is rotatably connected on the cleaning table and on the right side of the cleaning rack; the drying unit includes a drying rack, a drying rack for drying the surface of the substrate after leveling treatment by the leveling rack is fixedly installed on the cleaning table and on the right side of the leveling rack, a collecting box for collecting water droplets dripping during the cleaning and leveling and drying process of the substrate is fixedly installed at the lower end of the cleaning table, and the collecting box is fixedly connected to the cleaning rack.

[0011] According to an embodiment of the present invention, the positioning frame includes an inclined cylinder, which is rotatably connected to the left side of the washing table, a sprocket is fixedly installed on the rear end of the inclined cylinder, a limiting baffle is fixedly installed on the front side of the inclined cylinder close to the side of the washing table, a threaded column is connected to the front end of the inclined cylinder and is located on the right side of its central axis in a threaded connection manner, and a resist rod is fixedly installed at the front end of the threaded column, and the length of the resist rod is between the maximum distance and the minimum distance between the center of the threaded column and the arc outer wall of the inclined cylinder, a distance control screw is rotatably connected to the middle part of the inclined cylinder, and a frustum block is connected to the distance control screw in a threaded connection manner, the bottom surface diameter of the front side of the frustum block is larger than the bottom surface diameter of the rear side, and the outer ring surface of the frustum block is evenly arranged with extrusion plates extending out of the inclined cylinder in a sliding fit manner.

[0012] According to an embodiment of the present invention, the conveying frame includes sprocket 2, the output shaft of motor 1 is fixedly installed with sprocket 2 through a coupling, sprocket 1 and sprocket 2 are connected by a toothed chain belt transmission, the front end of sprocket 2 is fixedly installed with inclined extrusion column 1, and a distance control screw 2 is rotatably connected to the washing table and located on the upper side of the inclined extrusion column 1, and a moving block is connected to the distance control screw 2 in a threaded manner, and the moving block is connected to the washing table in a sliding fit manner, and the front end of the moving block is fixedly installed with inclined extrusion column 2.

[0013] According to an embodiment of the present invention, the cleaning rack includes a horizontal bracket, a horizontal bracket is fixedly installed on the cleaning table and on the right side of the positioning bracket, a limit block is fixedly installed on the lower side of the end of the horizontal bracket, a two-way screw 1 is rotatably connected to the middle of the limit block, a motor 2 is fixedly installed on the front end of the limit block through a motor seat, the output shaft of the motor 2 is fixedly connected to the two-way screw 1 through a coupling, the two-way screw 1 is symmetrically connected to the sliding block in a threaded connection manner, the sliding block and the limit block are connected in a sliding fit manner, an inclined water outlet pipe with the same inclination angle as the inclined cylinder is fixedly installed on the lower end of the sliding block, nozzles are evenly fixedly installed on the opposite ends of the inclined water outlet pipe, the inclined water outlet pipes are connected by an elastic pipe, a water pump is fixedly installed on the front end of the collection box, and the water pump and the elastic pipe are communicated by a connecting pipe.

[0014] According to an embodiment of the present invention, the leveling rack includes a bidirectional screw rod 2, which is rotatably connected to the cleaning table and located on the right side of the cleaning rack. The bidirectional screw rod 2 is symmetrically connected to a square block in a threaded connection manner. The square block is connected to the cleaning table in a sliding fit, and the front end of the square block is rotatably connected to an extrusion cylinder.

[0015] According to an embodiment of the present invention, the drying rack includes an air pump, which is fixedly installed on the washing table and on the right side of the leveling rack, a heating cylinder is fixedly installed on the end of the air pump, an air inlet pipe is fixedly installed on the upper end of the heating cylinder, a filter plate is fixedly installed on the inner wall of the air inlet pipe, a constant temperature electric heating wire is fixedly installed in the heating cylinder, a U-shaped drying pipe with the same inclination angle as the inclined extrusion column is fixedly installed on the washing table and in front of the air pump, a connecting pipe is fixedly connected between the air pump and the U-shaped drying pipe, and air outlets are evenly opened on the inner wall of the U-shaped drying pipe.

[0016] According to an embodiment of the present invention, the collection box includes a box body, the box body is fixedly installed at the lower end of the washing table, a delivery pipe is fixedly installed at the front end of the box body, a second filter plate is fixedly installed at the inner end of the delivery pipe, the end of the delivery pipe is fixedly connected to the water pump, the water pump and the elastic pipe are connected through a connecting pipe, and the delivery pipe is located on and behind the second filter plate.

[0017] According to an embodiment of the present invention, the inclined water outlet pipe is fixedly mounted with cleaning brushes symmetrically on the left and right, and a wiping sponge is fixedly mounted in the middle of the cleaning brush.

[0018] It can be seen from the above technical solutions that the present invention has the following advantages:

[0019] 1. In the present invention, by rotating the resisting rod and the threaded column counterclockwise, the resisting rod is rotated upward to the right side of the inclined cylinder, and the resisting rod extends out of the inclined cylinder to achieve the purpose of blocking the front end of the rolled substrate. At this time, the distance control screw is rotated to drive the frustum block to move backward, squeezing the extrusion plate, increasing the height of the extrusion plate extending out of the inclined cylinder until the extrusion plate is in close contact with the inner wall of the rolled substrate, further fixing the rolled substrate to achieve the purpose of positioning the rolled substrate.

[0020] 2. In the present invention, the bidirectional screw 1 is driven to rotate by the second motor, thereby driving the inclined water outlet pipe to move toward each other, so that the inclined water outlet pipe is close to the substrate, and the water in the collection box is filtered and transported to the inclined water outlet pipe through the elastic pipe by the water pump, and the clean water is sprayed onto the surface of the substrate through the nozzle to clean the surface of the substrate, and the surface of the substrate is cleaned by the cleaning brush and the wiping sponge.

[0021] 3. In the present invention, the square blocks are driven to move toward each other by rotating the two bidirectional screws, so that the substrate is squeezed between the extrusion cylinders, the wrinkles on the surface of the substrate are flattened, and the water droplets on the surface of the substrate are scraped off, reducing the difficulty and workload of subsequent drying.

[0022] 4. In the present invention, the gas in the heating cylinder after filtering is heated by the constant temperature electric heating wire in the heating cylinder. The heated gas enters the U-shaped drying tube and is discharged to the surface of the substrate through the air outlet to dry the surface of the substrate. The water collected in the box is transported to the elastic pipe through the filter plate 2 in the delivery pipe by a water pump for reuse, so as to achieve the purpose of saving water resources.

[0023] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a release film coating process provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 Shown is a workflow diagram of the present invention.

[0026] Figure 2A schematic diagram of a main-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0027] Figure 3 A schematic diagram of a main view plane structure provided according to an embodiment of the present invention is shown.

[0028] Figure 4 Shown Figure 3 AA cross-sectional view.

[0029] Figure 5 Shown Figure 3 BB cross-sectional view.

[0030] Figure 6 Shown Figure 3 Cross-sectional view along CC direction.

[0031] Figure 7 Shown Figure 3 DD-direction cross-sectional view.

[0032] Figure 8 Shown Figure 3 EE-direction cross-sectional view.

[0033] The above drawings include the following reference numerals:

[0034] 1. Surface treatment unit; 11. Cleaning table; 12. Positioning frame; 121. Inclined cylinder; 122. Sprocket 1; 123. Stop plate; 124. Threaded column; 125. Retaining rod; 126. Control screw 1; 127. Round table block; 128. Extrusion plate; 13. Motor 1; 14. Conveyor frame; 141. Sprocket 2; 142. Toothed chain belt; 143. Inclined extrusion column 1; 144. Moving block; 145. Inclined extrusion column 2; 146. Control screw 2; 15. Cleaning frame; 151. Horizontal bracket; 152. Stop block; 153. Bidirectional screw 1; 154. Motor 2; 155. Sliding block; 15 5. Sliding block; 156. Inclined water outlet pipe; 1561. Elastic pipe; 1562. Cleaning brush; 1563. Wiping sponge; 157. Nozzle; 158. Water pump; 159. Connecting pipe; 16. Leveling rack; 161. Two-way screw rod (II); 162. Square block; 163. Extrusion cylinder; 2. Drying unit; 21. Drying rack; 211. Air pump; 212. Heating cylinder; 213. Air inlet pipe; 214. Filter plate (I); 215. Constant temperature heating wire; 216. U-shaped drying tube; 217. Connecting pipe; 218. Air outlet; 22. Collection box; 221. Box body; 222. Delivery pipe; 223. Filter plate (II). Implementation Method

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] See Figure 1 A release film coating process uses a release film coating equipment. The release film coating equipment includes a surface treatment unit 1 and a drying unit 2. The drying unit 2 is provided on the surface treatment unit 1 and is used to dry the substrate after cleaning and leveling. The specific method of coating the release film using the release film coating equipment is as follows:

[0037] S1. Select substrate: Select polyethylene film or polytetrafluoroethylene film as the substrate.

[0038] S2. Substrate pretreatment: The surface of the substrate is cleaned, leveled, and dried by the surface treatment unit 1 and the drying unit 2 to ensure that the substrate surface is clean and level, and to remove grease, dust, and other impurities.

[0039] S3. Substrate coating: uniformly coating the polymer material on the surface of the substrate, wherein the polymer material is one or a mixture of polytetrafluoroethylene, polyethylene, polyether ketone, and polyimide.

[0040] S4. Preparation of release film: drying, curing, and peeling the coated substrate in sequence, and peeling the dried and cured release film from the substrate to obtain the desired release film.

[0041] See Figure 2 and Figure 3The surface treatment unit 1 includes a cleaning table 11, and a positioning frame 12 for positioning the rolled substrate is rotatably connected to the left side of the cleaning table 11. A motor 13 is fixedly installed on the rear end of the cleaning table 11 through a motor seat. The output shaft of the motor 13 is fixedly installed with a conveying frame 14 for conveying the substrate after cleaning, leveling and drying by the drying unit 2 through a coupling. A cleaning frame 15 for cleaning the surface of the substrate is fixedly installed on the cleaning table 11 and on the right side of the positioning frame 12. A leveling frame 16 for leveling the surface of the substrate after cleaning and scraping off water droplets attached to the surface of the substrate is rotatably connected to the cleaning table 11 and on the right side of the cleaning frame 15. The drying unit 2 includes a drying frame 21, and a leveling frame 16 for leveling the substrate after leveling treatment by the leveling frame 16 is fixedly installed on the cleaning table 11 and on the right side of the leveling frame 16. A drying rack 21 is provided for drying the surface of the substrate, and a collecting box 22 is fixedly installed at the lower end of the cleaning table 11 for collecting water droplets dripping during the cleaning, leveling and drying processes of the substrate. The collecting box 22 is fixedly connected to the cleaning rack 15. First, the rolled substrate is positioned by the positioning rack 12, and one end of the substrate is pulled to the right by the machine. The surface of the substrate is cleaned by the cleaning rack 15, and the surface of the cleaned substrate is leveled by the leveling rack 16. The surface of the substrate is dried by the drying rack 21, and water droplets dripping during the cleaning, leveling and drying processes of the cleaning rack 15 are collected by the collecting box 22. The collected water droplets are filtered by the collecting box 22, and the filtered water is transported to the cleaning rack 15 for use, so as to achieve the purpose of recycling water and reduce the waste of water resources.

[0042] See Figure 4, the positioning frame 12 includes an inclined cylinder 121, which is rotatably connected to the left side of the washing table 11, and a sprocket 122 is fixedly installed on the rear end of the inclined cylinder 121. A limited baffle 123 is fixedly installed on the front side of the inclined cylinder 121 near the side of the washing table 11, and a threaded column 124 is connected to the front end of the inclined cylinder 121 and is located on the right side of its central axis in a threaded connection manner. A resisting rod 125 is fixedly installed at the front end of the threaded column 124, and the length of the resisting rod 125 is between the maximum distance and the minimum distance between the center of the threaded column 124 and the arc-shaped outer wall of the inclined cylinder 121. A distance control screw 126 is rotatably connected to the middle part of the inclined cylinder 121, and a frustum block 1 is connected to the distance control screw 126 in a threaded connection manner. 27. The bottom diameter of the front side of the frustum block 127 is larger than the bottom diameter of the rear side. The outer ring surface of the frustum block 127 is evenly arranged with extrusion plates 128 extending out of the inclined cylinder 121 in a sliding fit. First, the rolled substrate is put on the inclined cylinder 121, and the resisting rod 125 and the threaded column 124 are rotated counterclockwise to rotate the resisting rod 125 to the left side of the inclined cylinder 121. The resisting rod 125 extends out of the inclined cylinder 121 to block the front end of the rolled substrate. At this time, the distance control screw 126 is rotated to drive the frustum block 127 to move backward, and the extrusion plate 128 is squeezed to increase the height of the extrusion plate 128 extending out of the inclined cylinder 121 until the extrusion plate 128 is in close contact with the inner wall of the rolled substrate to fix the rolled substrate.

[0043] See Figure 5 The conveyor frame 14 includes a second sprocket 141. The output shaft of the motor 13 is fixedly mounted with the second sprocket 141 via a coupling. The first sprocket 122 and the second sprocket 141 are connected to each other via a toothed chain belt 142. The front end of the second sprocket 141 is fixedly mounted with an inclined extrusion column 143. A second control screw 146 is rotatably connected to the cleaning table 11 and located above the inclined extrusion column 143. A moving block 144 is threadedly connected to the second control screw 146. The moving block 144 is connected to the cleaning table 11 in a sliding manner. An inclined extrusion column 2 145 is fixedly installed at the front end of the moving block 144; the sprocket 2 141 is driven to rotate by the motor 13, and the sprocket 1 122 rotates together under the transmission of the toothed chain belt 142. When the substrate is completely dried, the moving block 144 is driven downward by the distance-controlled screw 2 146, so that the inclined extrusion column 2 145 cooperates with the inclined extrusion column 1 143 to transport the substrate.

[0044] See Figure 6The cleaning rack 15 includes a horizontal bracket 151, which is fixedly installed on the cleaning table 11 and on the right side of the positioning frame 12. A limit block 152 is fixedly installed on the lower side of the end of the horizontal bracket 151. A two-way screw 153 is rotatably connected to the middle of the limit block 152. A motor 2 154 is fixedly installed on the front end of the limit block 152 through a motor seat. The output shaft of the motor 2 154 is fixedly connected to the two-way screw 153 through a coupling. The two-way screw 153 is symmetrically connected to a sliding block 155 in a threaded connection manner. The sliding block 155 is connected to the limit block 152 in a sliding fit manner. The lower end of the sliding block 155 is fixedly installed with an inclined water outlet pipe 156 with the same inclination angle as the inclined cylinder 121. The opposite ends of the inclined water outlet pipe 156 are evenly fixedly installed There is a nozzle 157, and the inclined water outlet pipe 156 is connected by an elastic pipe 1561. A water pump 158 is fixedly installed at the front end of the collection box 22, and the water pump 158 and the elastic pipe 1561 are connected by a connecting pipe 159; the bidirectional screw 153 is driven to rotate by the motor 2 154, thereby driving the inclined water outlet pipe 156 to move toward each other until the inclined water outlet pipe 156 approaches the substrate. At this time, the water in the collection box 22 is filtered by the water pump 158 and transported to the inclined water outlet pipe 156 through the elastic pipe 1561, and finally sprayed onto the surface of the substrate through the nozzle 157.

[0045] See Figure 7 The leveling frame 16 includes a second bidirectional screw 161, which is rotatably connected to the cleaning table 11 and located on the right side of the cleaning frame 15. The second bidirectional screw 161 is symmetrically connected to the square block 162 in a threaded connection manner. The square block 162 is connected to the cleaning table 11 in a sliding manner. The front end of the square block 162 is rotatably connected to the extrusion cylinder 163; the square blocks 162 are driven to move toward each other by rotating the second bidirectional screw 161 until the substrate is squeezed between the extrusion cylinders 163, so that the wrinkles on the surface of the substrate are flattened and the water droplets on the surface of the substrate are scraped off.

[0046] See Figure 8, the drying rack 21 includes an air pump 211, an air pump 211 is fixedly installed on the cleaning table 11 and on the right side of the leveling rack 16, a heating cylinder 212 is fixedly installed at the end of the air pump 211, an air inlet pipe 213 is fixedly installed on the upper end of the heating cylinder 212, a filter plate 214 is fixedly installed on the inner wall of the air inlet pipe 213, a constant temperature heating wire 215 is fixedly installed in the heating cylinder 212, and a U-shaped drying pipe 216 is fixedly installed on the cleaning table 11 and in front of the air pump 211 at the same inclination angle as the inclined extrusion column 143, a connecting pipe 217 is fixedly connected between the air pump 211 and the U-shaped drying pipe 216, and air outlets 218 are evenly opened on the inner wall of the U-shaped drying pipe 216; the gas in the heating cylinder 212 after filtering is heated by the constant temperature heating wire 215 in the heating cylinder 212, the heated gas enters the U-shaped drying pipe 216, and is discharged to the surface of the substrate through the air outlet 218 to dry the surface of the substrate.

[0047] See Figure 6 The collecting box 22 includes a box body 221, the box body 221 is fixedly installed at the lower end of the washing table 11, a delivery pipe 222 is fixedly installed at the front end of the box body 221, and a filter plate 223 is fixedly installed at the inner end of the delivery pipe 222. The end of the delivery pipe 222 is fixedly connected to the water pump 158, and the water pump 158 is connected to the elastic pipe 1561 through a connecting pipe 159. The water collected in the box body 221 is delivered to the elastic pipe 1561 through the filter plate 223 in the delivery pipe 222 for reuse.

[0048] See Figure 2 The inclined water outlet pipe 156 is symmetrically fixed with a cleaning brush 1562, and a wiping sponge 1563 is fixedly installed in the middle of the cleaning brush 1562; the surface of the substrate is cleaned by the cleaning brush 1562 and the wiping sponge 1563.

[0049] In the description of the present invention, it should be understood that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0050] Furthermore, the terms "first," "second," "number one," "number two," "one," and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being described. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0051] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, integral or sliding connections; they may refer to mechanical or electrical connections; they may refer to direct or indirect connections via an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A release film coating process, which uses a release film coating equipment, characterized in that: The release film coating processing equipment comprises a surface treatment unit (1) and a drying unit (2). The drying unit (2) is arranged on the surface treatment unit (1) and is used to dry the substrate after cleaning and leveling. The specific method of coating the release film using the release film coating processing equipment is as follows: S1. Select substrate: polyethylene film or polytetrafluoroethylene film as substrate; S2, substrate pretreatment: cleaning, leveling, and drying the substrate surface through the surface treatment unit (1) and the drying unit (2); S3, substrate coating: evenly coating the polymer material on the surface of the substrate; S4. Preparation of release film: drying, curing, and peeling the coated substrate in sequence, and peeling the dried and cured release film from the substrate to obtain the desired release film; The surface treatment unit (1) comprises a cleaning table (11), a positioning frame (12) for positioning the rolled substrate is rotatably connected to the left side of the cleaning table (11), a motor 1 (13) is fixedly installed on the rear end of the cleaning table (11) through a motor seat, a conveying frame (14) for conveying the substrate after being cleaned and leveled and dried by the drying unit (2) is fixedly installed on the output shaft of the motor 1 (13) through a coupling, a cleaning frame (15) for cleaning the surface of the substrate is fixedly installed on the cleaning table (11) and located on the right side of the positioning frame (12), and a leveling frame (16) for leveling the surface of the cleaned substrate and scraping off water droplets attached to the surface of the substrate is rotatably connected to the cleaning table (11) and located on the right side of the cleaning frame (15); The drying unit (2) comprises a drying rack (21), which is fixedly installed on the cleaning table (11) and located on the right side of the leveling rack (16) for drying the surface of the substrate after being leveled by the leveling rack (16), and a collecting box (22) is fixedly installed at the lower end of the cleaning table (11) for collecting water droplets dripping during the cleaning, leveling and drying processes of the substrate, and the collecting box (22) is fixedly connected to the cleaning rack (15); The positioning frame (12) comprises an inclined cylinder (121), the left side of the cleaning platform (11) is rotatably connected to the inclined cylinder (121), a sprocket (122) is fixedly installed at the rear end of the inclined cylinder (121), a limit baffle (123) is fixedly installed at the front side of the inclined cylinder (121) close to the cleaning platform (11), a threaded column (124) is connected to the front end of the inclined cylinder (121) and is located on the right side of the central axis thereof in a threaded connection manner, a resisting rod (125) is fixedly installed at the front end of the threaded column (124), and the resisting rod The length of (125) is between the maximum distance and the minimum distance between the center of the threaded column (124) and the arc-shaped outer wall of the inclined cylinder (121); the middle part of the inclined cylinder (121) is rotatably connected to a distance-controlling screw rod (126); the distance-controlling screw rod (126) is connected to a truncated cone block (127) in a threaded manner; the diameter of the bottom surface of the front side of the truncated cone block (127) is larger than the diameter of the bottom surface of the rear side; the outer annular surface of the truncated cone block (127) is evenly arranged with an extrusion plate (128) extending out of the inclined cylinder (121) in a sliding fit manner; The leveling frame (16) includes a second bidirectional screw (161), which is rotatably connected to the cleaning table (11) and located on the right side of the cleaning frame (15). The second bidirectional screw (161) is symmetrically connected to a square block (162) in a threaded connection manner. The square block (162) is connected to the cleaning table (11) in a sliding fit manner, and the front end of the square block (162) is rotatably connected to an extrusion cylinder (163).

2. The release film coating process according to claim 1, wherein: The conveying frame (14) includes a second sprocket (141), an output shaft of the first motor (13) is fixedly mounted with the second sprocket (141) via a coupling, the first sprocket (122) and the second sprocket (141) are connected to each other via a toothed chain belt (142), a first inclined extrusion column (143) is fixedly mounted at the front end of the second sprocket (141), a second distance control screw (146) is rotatably connected to the cleaning table (11) and located above the first inclined extrusion column (143), a moving block (144) is connected to the second distance control screw (146) in a threaded manner, the moving block (144) is connected to the cleaning table (11) in a sliding manner, and a second inclined extrusion column (145) is fixedly mounted at the front end of the moving block (144).

3. The release film coating process according to claim 1, wherein: The cleaning rack (15) includes a horizontal bracket (151), which is fixedly installed on the cleaning table (11) and located on the right side of the positioning rack (12). A limit block (152) is fixedly installed on the lower side of the end of the horizontal bracket (151). The middle part of the limit block (152) is rotatably connected to a bidirectional screw rod (153). The front end of the limit block (152) is fixedly installed with a motor (154) through a motor seat. The output shaft of the motor (154) is fixedly connected to the bidirectional screw rod (153) through a coupling. The bidirectional screw rod (153) is symmetrically connected to a sliding block (155) in a threaded connection manner. The sliding block (155) is connected to the limit block (152) in a sliding fit manner. An inclined water outlet pipe (156) having the same inclination angle as that of the inclined cylinder (121) is fixedly mounted on the lower end of the movable block (155); a nozzle (157) is evenly fixedly mounted on the opposite end of the inclined water outlet pipe (156); the inclined water outlet pipes (156) are connected by an elastic pipe (1561); a water pump (158) is fixedly mounted on the front end of the collection box (22); and the water pump (158) and the elastic pipe (1561) are connected by a connecting pipe (159).

4. The release film coating process according to claim 2, wherein: The drying rack (21) comprises an air pump (211), the air pump (211) is fixedly installed on the cleaning table (11) and located on the right side of the leveling rack (16), a heating cylinder (212) is fixedly installed at the end of the air pump (211), an air inlet pipe (213) is fixedly installed on the upper end of the heating cylinder (212), a filter plate (214) is fixedly installed on the inner wall of the air inlet pipe (213), a constant temperature electric heating wire (215) is fixedly installed in the heating cylinder (212), a U-shaped drying pipe (216) with the same inclination angle as the inclined extrusion column (143) is fixedly installed on the cleaning table (11) and located in front of the air pump (211), a connecting pipe (217) is fixedly connected between the air pump (211) and the U-shaped drying pipe (216), and air outlets (218) are evenly opened on the inner wall of the U-shaped drying pipe (216).

5. The release film coating process according to claim 3, wherein: The collecting box (22) comprises a box body (221), the box body (221) is fixedly mounted on the lower end of the washing table (11), a delivery pipe (222) is fixedly mounted on the front end of the box body (221), a second filter plate (223) is fixedly mounted on the inner end of the delivery pipe (222), the end of the delivery pipe (222) is fixedly connected to the water pump (158), the water pump (158) and the elastic pipe (1561) are connected via a connecting pipe (159), which is located on the delivery pipe (222) and behind the second filter plate (223).

6. The release film coating process according to claim 3, characterized in that: The inclined water outlet pipe (156) is fixedly mounted with a cleaning brush (1562) symmetrically on both sides, and a wiping sponge (1563) is fixedly mounted in the middle of the cleaning brush (1562).

Images