A coating machine for optical protective film

Abstract

The present application relates to the field of optical protective film preparation, and particularly relates to a coating machine for optical protective film, which comprises a coating device and a protective shell, the coating device and the protective shell are attached to the side, the side wall of the coating device and the protective shell is connected, the coating device comprises a receiving shell, further comprising: a smearing mechanism connected to the receiving shell, the present application can make two groups of smearing mechanisms respectively coat two sides of the cloth by using multiple groups of reversing rollers, and at the same time, the optical protective coating on the cloth can form a thin layer by using the cooperation of the pressure roller and the scraper, so that the two sides of the cloth can form a thin and dense optical protective film, thereby solving the problems that the existing coating machine for optical protective film can only coat one side of the cloth, the processing efficiency is low, and it is difficult to form a thin and dense protective film.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical protective film preparation, in particular to an optical protective film coating machine. BACKGROUND

[0002] The protective film is a film material with protective function for other materials, which has a wide range of applications, such as protection of metal surface, coating product surface, plastic surface, optical film and the like. In terms of the function of the protective film, some are to protect the cleanliness of the product surface and not to be contaminated, and some are to protect the internal product and structure from being damaged, so the performance requirements of the base material of the protective film itself are different for different functional protective films.

[0003] In some manufacturing fields, it is necessary to prepare cloth with optical protective film plated on the surface. The use of these cloths to wrap valuable articles or lay in the box body can effectively protect the articles, thereby reducing the scratches on the surface during transportation and assembly. Therefore, an optical protective film coating machine is needed to prepare cloth with optical protective film on the surface.

[0004] The existing optical protective film coating machine has the following defects:

[0005] 1. The existing optical protective film coating machine can only coat one side of the cloth. If the cloth with optical protective film on both sides is to be prepared, secondary processing is needed, which reduces the work efficiency, increases the coating cost, and in the coating process, the coating and heating steps are separated. The traditional optical protective film coating machine needs to be uniformly heated after the whole coating, which has low processing efficiency.

[0006] 2. In the coating process of the traditional optical protective film coating machine, the cloth is repeatedly coated by using a brush to ensure the formation of a dense optical protective film. However, this coating method easily causes waste of coating material, and it is difficult to form a thin and dense protective film.

[0007] Therefore, it is necessary to invent an optical protective film coating machine. SUMMARY

[0008] Therefore, the present application provides an optical protective film coating machine, which can independently coat both sides of the cloth by using multiple groups of reversing rollers, and can form a thin and dense optical protective film on both sides of the cloth by using the cooperation of the pressure roller and the scraper, thereby solving the problems of the existing optical protective film coating machine, which can only coat one side of the cloth, has low processing efficiency and is difficult to form a thin and dense protective film.

[0009] In order to achieve the above object, the present application provides the following technical scheme: an optical protective film coating machine, comprising a coating device and a protective shell, the coating device and the protective shell are attached on the side, the coating device and the protective shell are connected on the side wall, the coating device comprises a receiving shell: further comprising: a smearing mechanism connected to the receiving shell;

[0010] The smearing mechanism is provided with two groups, the smearing mechanism comprises a body, both groups of the body are fixedly connected with the inner side wall of the receiving shell, a receiving groove is formed in the top rear side of the body, a liquid outlet groove is formed in the center of the bottom of the receiving groove, a servo motor is fixedly installed on the inner side wall of the body, an elastic belt transmission device is arranged on the outer side wall of the body, the output shaft of the servo motor is fixedly connected with the end pulley of the elastic belt transmission device, a paint box is clamped on the inner side wall of the receiving groove, a high-pressure liquid inlet pipe is fixedly installed on one side of the paint box, the high-pressure liquid inlet pipe is communicated with the inside of the paint box, a liquid discharge groove is formed in the bottom of the paint box, the liquid discharge groove is aligned with the liquid outlet groove, and the outer side wall of the liquid discharge groove is inserted into the inner side wall of the liquid outlet groove, and a scraper is fixedly installed on the bottom of the body.

[0011] The smearing mechanism further comprises a flattening assembly, the flattening assembly comprises a compression roller, one end of the compression roller is fixedly connected with the other end pulley of the elastic belt transmission device, the flattening assembly further comprises an adjusting roller, both ends of the adjusting roller are rotatably connected with the two side walls of the body, the tail end of the adjusting roller is rotatably penetrated through the side wall of the receiving shell, pressure inclined plates are fixedly installed on both sides of the middle part of the adjusting roller, a gas cylinder is fixedly installed on the inner side wall of the body, a push plate is fixedly installed on the output end of the gas cylinder, the side wall of the push plate is in contact with the top wall of the two pressure inclined plates, two arc-shaped resisting plates are fixedly installed on the inner side wall of the receiving shell, and the two arc-shaped resisting plates are respectively located below the two bodies.

[0012] Preferably, a plurality of reversing rollers are rotatably connected to the inner side wall of the receiving shell, a cloth outlet roller and a collecting roller are rotatably connected to the bottom of the inner side wall of the receiving shell, and four infrared heaters are fixedly installed on the inner side wall of the receiving shell, two groups of the infrared heaters are respectively located on the rear side of the two smearing mechanisms, and the other two groups of the infrared heaters are located on the upper end of the collecting roller.

[0013] Preferably, the coating device further comprises a pressing assembly, the pressing assembly comprises a horizontal plate, the horizontal plate is provided with two groups, both groups of the horizontal plate are fixedly connected with the inner side wall of the receiving shell, both ends of the bottom of both groups of the horizontal plate are fixedly installed with telescopic springs, the bottom of both groups of the telescopic springs on the left side is fixedly installed with a same top pressing frame, a same rotating shaft is rotatably connected with both ends of the side wall of the top pressing frame, a first connecting plate and a second rotating plate are respectively fixedly installed on both ends of the rotating shaft, and the bottom of both groups of the telescopic springs on the right side is fixedly connected with the tail end of the first connecting plate and the second rotating plate.

[0014] Preferably, the inner wall of the protective shell is fitted to the outer wall of the receiving shell, multiple sets of transparent glass plates are fixedly installed on the outer wall of the protective shell, and two sets of magnetic adsorption buckles are fixedly installed on the top of the protective shell, and the two sets of magnetic adsorption buckles are engaged with the top of the receiving shell.

[0015] The beneficial effects of this invention are:

[0016] 1. By placing the roll of fabric to be coated on the output roller, the fabric on the output roller is guided to pass through multiple sets of reversing rollers in sequence, with its upper surface on the arc-shaped support plate of one coating mechanism and its lower surface on the arc-shaped support plate of another coating mechanism, and then collected on the collection roller. At this time, the collection roller is started to slowly collect the fabric to be coated. At the same time, the servo motors in the two coating mechanisms are started. The output shaft of the servo motor drives the elastic belt transmission device to rotate, thereby rotating the pressure roller. At the same time, high-pressure optical protective coating is filled into the coating box through the high-pressure liquid inlet pipe. Under the action of high pressure in the coating box, the high-pressure optical protective coating in the coating box can be discharged onto the fabric to be coated in sequence through the drain trough and the outlet trough. At this time, the pressure roller can flatten the optical protective coating on the fabric, and the scraper can scrape off the excess optical protective coating on the fabric, making it into a thin layer. Under the radiation heating of the infrared heater, an optical protective film can be formed on both sides of the fabric to be coated, improving work efficiency.

[0017] 2. By starting the cylinder, the cylinder output shaft drives the push plate to move downward, thereby allowing the side wall of the push plate to push the pressure plate, which in turn drives the adjusting roller to rotate. This causes the pressure roller connected to the two sets of pressure plates to rotate, pressing the fabric to be coated. When combined with the scraper, it ensures that a dense optical protective film is formed on the fabric after being heated by the infrared heater. By utilizing the cooperation of the pressure roller and the scraper, the optical protective coating on the fabric can be presented as a thin layer. After being heated by the infrared heater, a thin and dense optical protective film can be formed on both sides of the fabric. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the device provided by the present invention;

[0019] Figure 2 Rear view of the housing provided for this invention;

[0020] Figure 3 This is an assembly diagram of the device provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the coating apparatus provided by the present invention;

[0022] Figure 5 Provided by the present invention Figure 4A schematic diagram of the planar structure;

[0023] Figure 6 This is a schematic diagram of the coating mechanism provided by the present invention;

[0024] Figure 7 A side view of the applicator mechanism provided by the present invention;

[0025] Figure 8 An exploded view of the applicator mechanism provided by the present invention;

[0026] Figure 9 An exploded view of the flattening component provided by the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the clamping assembly provided by the present invention;

[0028] Figure 11 An exploded view of the clamping assembly provided by the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of the paint box provided by the present invention.

[0030] In the diagram: Coating device 100, coating mechanism 110, machine body 111, receiving tank 112, liquid outlet tank 113, servo motor 114, elastic belt drive device 115, paint box 116, high-pressure liquid inlet pipe 117, liquid outlet tank 118, scraper 119, flattening assembly 120, pressure roller 121, adjusting roller 122, pressure inclined plate 123, cylinder 124, push plate 125, arc-shaped abutment plate 130, receiving shell 140, cloth outlet roller 141, collecting roller 142, reversing roller 143, infrared heater 144, pressing assembly 150, horizontal plate 151, telescopic spring 152, top pressure frame 153, first connecting plate 154, rotating shaft 155, second rotating plate 156, protective shell 200, transparent glass plate 210, magnetic adsorption buckle 220. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] See attached document Figures 1-12 The present invention provides a coating machine for optical protective film, including a coating device 100 and a protective shell 200. The coating device 100 and the protective shell 200 are attached to each other on the side and connected to the side wall of the protective shell 200. The coating device 100 includes a receiving shell 140 and further includes a coating mechanism 110 connected to the receiving shell 140.

[0033] The coating mechanism 110 has two sets, each including a body 111. Both sets of bodies 111 are fixedly connected to the inner wall of the receiving shell 140. A receiving groove 112 is provided on the rear top of the body 111, and a liquid outlet groove 113 is provided at the center of the bottom of the receiving groove 112. A servo motor 114 is fixedly installed on the inner wall of the body 111, and an elastic belt drive device 115 is provided on the outer wall of the body 111. The output shaft of the servo motor 114 is fixedly connected to a pulley at one end of the elastic belt drive device 115. A coating agent is engaged with the inner wall of the receiving groove 112. The paint box 116 has a high-pressure inlet pipe 117 fixedly installed on one side, which communicates with the interior of the paint box 116. A drain trough 118 is provided at the bottom of the paint box 116, aligned with the outlet trough 113, and the outer wall of the drain trough 118 is inserted into the inner wall of the outlet trough 113. A scraper 119 is fixedly installed at the bottom of the machine body 111. Specifically, by placing the roll of cloth to be coated onto the cloth output roller 141, the cloth on the cloth output roller 141 is guided to pass sequentially through multiple sets of reversing rollers 14. 3. The upper surface of the cloth is placed on the arc-shaped support plate 130 of one set of coating mechanisms 110, and the lower surface is placed on the arc-shaped support plate 130 of another set of coating mechanisms 110. The cloth is then collected onto the collecting roller 142. At this time, the collecting roller 142 is started to slowly collect the cloth to be coated. At the same time, the servo motors 114 in the two sets of coating mechanisms 110 are started. The output shaft of the servo motor 114 drives the elastic belt transmission device 115 to rotate, thereby rotating the pressure roller 121. At the same time, the high-pressure liquid inlet pipe 117 supplies the coating to the paint box 11. High-pressure optical protective coating is filled into the coating box 116. Under the high pressure inside the coating box 116, the high-pressure optical protective coating inside the coating box 116 can be discharged onto the fabric to be coated through the drain trough 118 and the outlet trough 113 in sequence. At this time, the pressure roller 121 can flatten the optical protective coating on the fabric, and the scraper 119 can scrape off the excess optical protective coating on the fabric, so that it presents a thin layer. Under the radiation heating of the infrared heater 144, an optical protective film can be formed on both sides of the fabric to be coated.

[0034] The coating mechanism 110 also includes a flattening assembly 120, which includes a pressure roller 121. One end of the pressure roller 121 is fixedly connected to the pulley at the other end of the elastic belt drive device 115. The flattening assembly 120 also includes an adjusting roller 122. Both ends of the adjusting roller 122 are rotatably connected to the side walls of the machine body 111. The end of the adjusting roller 122 rotatably passes through the side wall of the receiving shell 140. Pressure inclined plates 123 are fixedly installed on both sides of the middle part of the adjusting roller 122. A cylinder 124 is fixedly installed on the inner side wall of the machine body 111. A push plate 125 is fixedly installed at the output end of the cylinder 124. The side wall of the push plate 125 contacts the top wall of the two sets of pressure inclined plates 123. Two sets of arc-shaped abutments 130 are fixedly installed on the inner wall of the housing 140. The two sets of arc-shaped abutments 130 are located directly below the two sets of machine bodies 111. Specifically, by starting the cylinder 124, the output shaft of the cylinder 124 drives the push plate 125 to move down, so that the side wall of the push plate 125 can push the pressure inclined plate 123, so that the pressure inclined plate 123 drives the adjusting roller 122 to rotate, so that the pressure roller 121 connected to the two sets of pressure inclined plates 123 rotates, so that the pressure roller 121 presses the cloth to be coated. After cooperating with the scraper 119, it can ensure that a dense optical protective film is formed on the cloth after being heated by the infrared heater 144.

[0035] Furthermore, multiple sets of reversing rollers 143 are rotatably connected to the inner wall of the receiving housing 140, and a fabric output roller 141 and a collecting roller 142 are rotatably connected to the bottom of the inner wall of the receiving housing 140. Four sets of infrared heaters 144 are fixedly installed on the inner wall of the receiving housing 140. Two sets of infrared heaters 144 are located behind the two sets of coating mechanisms 110, and the other two sets of infrared heaters 144 are located on the upper end of the collecting roller 142. Specifically, the infrared heaters 144 can heat the surface of the fabric, thereby forming an optical protective film on both sides of the fabric to be coated.

[0036] Furthermore, the coating device 100 also includes a pressing assembly 150, which includes two sets of horizontal plates 151. Both sets of horizontal plates 151 are fixedly connected to the inner side wall of the receiving shell 140. Telescopic springs 152 are fixedly installed at both ends of the bottom of both sets of horizontal plates 151. The telescopic springs 152 are in a stretched state, ensuring that the pressing assembly 150 can tighten the fabric during operation by the top pressure frame 153. The two sets of telescopic springs 152 on the left side are fixedly installed with the same top pressure frame 153. The two side walls of the top pressure frame 153 are rotatably connected to the same rotating shaft 155. A first connecting plate 154 and a second rotating plate 156 are fixedly installed at both ends of the rotating shaft 155, respectively. The two sets of telescopic springs 152 on the right side are fixedly installed with the same top pressure frame 153. The first connecting plate 154 and the second rotating plate 156 are respectively fixedly connected to their ends. Specifically, when the fabric to be coated passes through the top pressure frame 153, the top pressure frame 153 can always stretch the fabric to be coated upward under the action of the two sets of telescopic springs 152, thereby ensuring that the fabric to be coated is always in a taut state when coating the back side. At this time, the two sets of telescopic springs 152 drive the top pressure frame 153 to move upward, thereby causing the rotating shaft 155 to move upward. At this time, the rotating shaft 155 drives the first connecting plate 154 and the second rotating plate 156 to move upward, thereby compressing the two sets of telescopic springs 152 on the right side, reducing the tension of the two sets of telescopic springs 152 on the left side, achieving the effect of automatically balancing the tension, and avoiding the fabric from breaking due to excessive tension.

[0037] Furthermore, the inner wall of the protective shell 200 is fitted to the outer wall of the receiving shell 140, ensuring that the coating machine is not affected by external factors during operation. Multiple sets of transparent glass plates 210 are fixedly installed on the outer wall of the protective shell 200, which facilitates the user to monitor the operating status of the coating machine. Two sets of magnetic adsorption buckles 220 are fixedly installed on the top of the protective shell 200, and the two sets of magnetic adsorption buckles 220 are snapped into the top of the receiving shell 140, which allows the protective shell 200 and the receiving shell 140 to be fixedly connected together.

[0038] The process of using this invention is as follows: Those skilled in the art place the roll of fabric to be coated onto the output roller 141, guiding the fabric on the output roller 141 through multiple sets of reversing rollers 143, ensuring its upper surface rests on the arc-shaped abutment 130 of one set of coating mechanisms 110, and its lower surface rests on the arc-shaped abutment 130 of another set of coating mechanisms 110, before collecting it onto the collection roller 142. At this time, the collection roller 142 is activated to slowly collect the fabric to be coated. Simultaneously, the servo motors 114 within the two sets of coating mechanisms 110 are activated. The output shaft of the servo motor 114 drives the elastic belt transmission device 115 to rotate, thereby causing the pressure roller 121 to rotate. Simultaneously, high-pressure optical protective coating is injected into the coating box 116 through the high-pressure inlet pipe 117. Under the high pressure within the coating box 116, the high-pressure optical protective coating can be discharged sequentially through the drain trough 118 and the outlet trough 113 onto the fabric to be coated. At this time, the pressure roller 121 can flatten the optical protective coating on the fabric, while the scraper 119 can scrape off the excess optical protective coating on the fabric, making it a thin layer. Under the radiation heating of the infrared heater 144, an optical protective film can be formed on both sides of the fabric to be coated. When the pressure roller 121 is not in close contact with the fabric, it is difficult to flatten and compact the optical protective coating on the fabric, thus making it difficult for the optical protective coating to cover every corner of the fabric. At this time, by starting the cylinder 124, the output shaft of the cylinder 124 drives the push plate 125 to move down, so that the side wall of the push plate 125 can push the pressure inclined plate 123, thereby causing the pressure inclined plate 123 to drive the adjusting roller 122 to rotate, thereby causing the pressure roller 121 connected to the two sets of pressure inclined plates 123 to rotate, so that the pressure roller 121 presses the fabric to be coated. After cooperating with the scraper 119, it can ensure that a dense optical protective film is formed on the fabric after being heated by the infrared heater 144.

[0039] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A coating machine for optical protective films, comprising a coating device (100) and a protective shell (200), wherein the coating device (100) is attached to the side of the protective shell (200), and the coating device (100) is connected to the side wall of the protective shell (200), characterized in that: The coating apparatus (100) includes a receiving housing (140) and a coating mechanism (110) connected to the receiving housing (140). The coating mechanism (110) is provided in two sets. Each coating mechanism (110) includes a body (111). Both sets of the body (111) are fixedly connected to the inner wall of the receiving shell (140). A receiving groove (112) is provided on the rear side of the top of the body (111). A liquid outlet groove (113) is provided at the center of the bottom of the receiving groove (112). A servo motor (114) is fixedly installed on the inner wall of the body (111). An elastic belt drive device (115) is provided on the outer wall of the body (111). The output shaft of the servo motor (114) is connected to the elastic belt drive device (115). One end of the actuator (115) is fixedly connected to a pulley. A paint box (116) is snapped into the inner wall of the receiving groove (112). A high-pressure liquid inlet pipe (117) is fixedly installed on one side of the paint box (116). The high-pressure liquid inlet pipe (117) is connected to the inside of the paint box (116). A drain groove (118) is opened at the bottom of the paint box (116). The drain groove (118) is aligned with the outlet groove (113), and the outer wall of the drain groove (118) is inserted into the inner wall of the outlet groove (113). A scraper (119) is fixedly installed at the bottom of the machine body (111). The coating mechanism (110) further includes a flattening assembly (120), which includes a pressure roller (121). One end of the pressure roller (121) is fixedly connected to the pulley at the other end of the elastic belt drive device (115). The flattening assembly (120) also includes an adjusting roller (122). Both ends of the adjusting roller (122) are rotatably connected to the side walls of the machine body (111). The end of the adjusting roller (122) rotatably penetrates the side wall of the receiving shell (140). (122) Both sides of the middle section are fixedly installed with pressure-bearing inclined plates (123). A cylinder (124) is fixedly installed on the inner side wall of the machine body (111). A push plate (125) is fixedly installed at the output end of the cylinder (124). The side wall of the push plate (125) is in contact with the top wall of the two sets of pressure-bearing inclined plates (123). Two sets of arc-shaped abutments (130) are fixedly installed on the inner side wall of the receiving shell (140). The two sets of arc-shaped abutments (130) are located directly below the two sets of machine bodies (111).

2. The coating machine for optical protective film according to claim 1, characterized in that: Multiple reversing rollers (143) are rotatably connected to the inner wall of the receiving shell (140). A cloth output roller (141) and a collection roller (142) are rotatably connected to the bottom of the inner wall of the receiving shell (140). Four sets of infrared heaters (144) are fixedly installed on the inner wall of the receiving shell (140). Two sets of infrared heaters (144) are located behind the two sets of coating mechanisms (110), and the other two sets of infrared heaters (144) are located at the upper end of the collection roller (142).

3. The coating machine for optical protective film according to claim 1, characterized in that: The coating device (100) further includes a pressing assembly (150), which includes a horizontal plate (151). The horizontal plate (151) is provided in two sets. Both sets of the horizontal plate (151) are fixedly connected to the inner side wall of the receiving shell (140). Both ends of the bottom of the two sets of horizontal plates (151) are fixedly installed with telescopic springs (152). The bottom of the two sets of telescopic springs (152) on the left side is fixedly installed with the same top pressure frame (153). The side walls of the top pressure frame (153) are rotatably connected to the same rotating shaft (155). The two ends of the rotating shaft (155) are respectively fixedly installed with a first connecting plate (154) and a second rotating plate (156). The bottom of the two sets of telescopic springs (152) on the right side is fixedly connected to the ends of the first connecting plate (154) and the second rotating plate (156).

4. The coating machine for optical protective film according to claim 1, characterized in that: The inner wall of the protective shell (200) is fitted to the outer wall of the receiving shell (140). Multiple sets of transparent glass plates (210) are fixedly installed on the outer wall of the protective shell (200). Two sets of magnetic adsorption buckles (220) are fixedly installed on the top of the protective shell (200). The two sets of magnetic adsorption buckles (220) are snapped into the top of the receiving shell (140).

Images