Release paper coating machine

Abstract

The invention relates to the technical field of coating equipment, in particular to a release paper coating machine which comprises a rack and a base material feeding mechanism, the base material feeding mechanism is located at the feeding end of the rack, the base material feeding mechanism and the rack are connected through a preheating assembly, a preheating channel is formed in the preheating assembly, a guide roller assembly is arranged in the preheating channel, and the guide roller assembly is located at the feeding end of the rack. A first coating roller assembly, a second coating roller assembly and a traction roller assembly are sequentially arranged on the rack in the conveying direction of the rack. The preheating assembly is used for adjusting the temperature in the preheating channel, the first coating roller assembly and the second coating roller assembly are both used for coating silicone oil on the surface of a release paper base material, and the traction roller assembly is used for pulling the release paper base material to move; before coating, the release paper base material needs to linearly slide in the preheating channel, and the guide roller assembly assists the release paper base material to move; the preheating assembly heats air in the channel, it is ensured that the release paper base material is evenly heated, moisture is evaporated, and moisture is prevented. Then, the first and second coating roller assemblies are uniformly coated with the silicone oil layer in sequence, and the thickness of the silicone oil layer is accurately adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of coating equipment, in particular to a release paper coating machine. Background Art

[0002] During the production process, release paper needs to be coated with a layer of silicone oil on its surface. However, due to the complex and changeable climate in the southern region, the release paper substrate may become damp during storage. Excessive moisture on the surface of the substrate will affect the adhesion of the silicone oil layer on the surface of the substrate, thereby greatly affecting the quality of the finished release paper.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a release paper coating machine, which can preheat the release paper substrate to eliminate moisture and impurities on its surface, thereby improving the bonding effect between the release paper substrate and silicone oil.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A release paper coating machine comprises a frame and a substrate feeding mechanism, wherein the substrate feeding mechanism is located at the feeding end of the frame, the substrate feeding mechanism is connected to the frame via a preheating assembly, a preheating channel is formed in the preheating assembly, a guide roller assembly is arranged in the preheating channel, a first coating roller assembly, a second coating roller assembly and a traction roller assembly are sequentially arranged on the frame along its transmission direction; the preheating assembly is used to adjust the temperature in the preheating channel, the first coating roller assembly and the second coating roller assembly are both used to apply silicone oil to the surface of the release paper substrate, and the traction roller assembly is used to traction the release paper substrate to move.

[0006] In the release paper coating machine, the preheating component includes an insulation frame, the preheating channel is located in the insulation frame, and an air distribution cover is provided on the insulation frame above the preheating channel. The air distribution cover is connected to the preheating channel, and a hot air component is provided on the air distribution cover; the two ends of the insulation frame are respectively connected to the substrate feeding mechanism and the frame.

[0007] In the release paper coating machine, an air distribution cavity is formed in the air distribution cover, a plurality of air outlet holes connected to the preheating channel are distributed at the bottom of the air distribution cavity, and air inlets are respectively arranged on both sides of the top of the air distribution cover, and the two air inlets are respectively connected to the hot air assembly.

[0008] In the release paper coating machine, a wind shield is arranged on the air inlet, the wind shield is connected to the hot air assembly, a sealing strip is arranged at the bottom of the wind shield, and a sealing wall abutting against the sealing strip is arranged at the outer edge of the air inlet.

[0009] In the release paper coating machine, the first coating roller assembly includes a heated coating roller and a transmission roller, the two ends of the transmission roller are respectively rotatably connected to the two ends of the frame, the heated coating roller is located on one side of the transmission roller, and the two ends of the heated coating roller are respectively movably connected to the frame through a first push-pull assembly.

[0010] In the release paper coating machine, the heated coating roller includes a first coating part, and second coating parts are respectively arranged at both ends of the first coating part, and the temperature of the first coating part is lower than the temperature of the two second coating parts; a rotating part is arranged on the outer side of the second coating part, and the rotating part is rotatably connected to the first push-pull assembly.

[0011] In the release paper coating machine, the first coating part includes a first rolling core, a first heat-conducting bracket is arranged on the periphery of the first rolling core, a plurality of first heating cavities are distributed in an annular manner on the first heat-conducting bracket, and a first heating rod body is arranged in the first heating cavity along its length direction; the second coating part includes a second rolling core, a second heat-conducting bracket is arranged on the periphery of the second rolling core, a plurality of second heating cavities are distributed in an annular manner on the second heat-conducting bracket, and a second heating rod body is arranged in the second heating cavity along its length direction, and one side of the second rolling core is connected to the rotating part; the number of the second heating cavities is greater than the number of the first heating cavities; the first heat-conducting bracket and the second heat-conducting bracket at both ends are connected by a coating layer.

[0012] In the release paper coating machine, the rotating member includes a rotating shaft portion, the rotating shaft portion is connected to the second rolling core through a sealing portion, and the sealing portion is covered on the end of the second heat-conducting bracket; the first push-pull assembly includes a first telescopic portion and a swing plate, the first telescopic portion is hinged to the frame, the swing plate is rotatably connected to the frame, one end of the swing plate is hinged to the output end of the first telescopic portion, and the other end of the swing plate is rotatably connected to the rotating shaft portion.

[0013] In the release paper coating machine, the second coating roller assembly includes a first pressure roller and a second pressure roller, the first pressure roller is rotatably connected to the frame, the second pressure roller is located on one side of the first pressure roller, and both ends of the second pressure roller are movably connected to the frame through a second push-pull assembly, and the second push-pull assembly is used to adjust the distance between the second pressure roller and the first pressure roller.

[0014] In the release paper coating machine, the second push-pull assembly includes a second telescopic part, the second telescopic part is connected to the frame, a bearing assembly is provided at the output end of the second telescopic part, the bearing assembly is rotatably connected to the end of the second pressure roller, a slider is provided on the bearing assembly, and a slide rail portion slidably connected to the slider is provided on the frame.

[0015] Beneficial effects: The present invention provides a release paper coating machine. Before coating, the release paper substrate needs to pass through a preheating channel first, and the guide roller assembly is used to achieve linear sliding in the channel. At the same time, the preheating assembly heats the air in the channel to ensure that the release paper substrate is fully heated by the hot air when passing through, thereby evaporating the moisture on the surface, preventing moisture, and improving the coating effect. Then, the first coating roller assembly and the second coating roller assembly are used to uniformly coat the surface of the release paper substrate with a silicone oil layer in turn. By adjusting the working states of the two components, the thickness of the silicone oil layer can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of the release paper coating machine provided by the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the preheating assembly in the release paper coating machine provided by the present invention; Figure 3 Schematic diagram of the disassembled structure of the heated coating roller in the release paper coating machine provided by the present invention Figure 1 ; Figure 4 Schematic diagram of the disassembled structure of the heated coating roller in the release paper coating machine provided by the present invention Figure 2 ; Figure 5 The assembly structure of the frame, the first coating roller assembly, the second coating roller assembly and the traction roller assembly in the release paper coating machine provided by the present invention is schematically shown. Figure 1 ; Figure 6 The assembly structure of the frame, the first coating roller assembly, the second coating roller assembly and the traction roller assembly in the release paper coating machine provided by the present invention is schematically shown. Figure 2 ; Figure 7 This is a schematic structural diagram of the substrate feeding mechanism in the release paper coating machine provided by the present invention.

[0017] Explanation of the main component symbols: 1-frame, 2-substrate feeding mechanism, 21-fixed frame, 22-roll guide roller, 23-rotating plate, 24-sliding groove, 25-rotating assembly, 26-pressing roller, 3-preheating assembly, 31-preheating channel, 32-guide roller assembly, 33-insulating frame, 34-air distribution cover, 35-air distribution chamber, 36-air outlet, 37-wind shield, 38-sealing strip, 39-sealing wall, 4-first coating roller assembly, 41-heating coating roller, 411-first coating part, 4111-first rolling core, 4112-first heat-conducting bracket, 4113-first heating chamber, 4114-first heating Rod body, 412-second coating part, 4121-second rolling core, 4122-second heat-conducting bracket, 4123-second heating chamber, 4124-second heating rod body, 413-rotating part, 4131-rotating shaft part, 4132-sealing part, 42-transmission roller, 43-first push-pull assembly, 431-first telescopic part, 432-swing plate, 44-coating layer, 5-second coating roller assembly, 51-first pressure roller, 52-second pressure roller, 53-second push-pull assembly, 531-second telescopic part, 532-bearing assembly, 533-sliding block part, 534-slide rail part, 6-traction roller assembly, 61-traction roller. DETAILED DESCRIPTION

[0018] The present invention provides a release paper coating machine. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "middle", "inner side", "outer side", etc. are directions or positional relationships of the present invention based on the drawings, which are only for the convenience of describing the present invention and simplifying the description. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] See also Figures 1 to 7The present invention provides a release paper coating machine, comprising a frame 1 and a substrate feeding mechanism 2, wherein the substrate feeding mechanism 2 is located at the feeding end of the frame 1; the substrate feeding mechanism 2 is used to introduce the release paper substrate roll into the coating station to improve the stability of the release paper substrate during feeding; the substrate feeding mechanism 2 is connected to the frame 1 through a preheating component 3, a preheating channel 31 is formed in the preheating component 3, and a guide roller component 32 is arranged in the preheating channel 31; the release paper substrate needs to pass through the preheating channel 31 before coating, and the guide roller component 32 is used to realize the linear sliding action of the release paper substrate in the preheating channel 31, and at the same time, the air in the preheating channel 31 is heated by the preheating component 3, and when the release paper substrate passes through the preheating channel 31, it will be heated by the hot air, so that the water vapor on the coating surface of the release paper substrate evaporates, and the release paper substrate is prevented from being In a humid state, the coating effect between the release paper substrate and the silicone oil is improved; the first coating roller assembly 4, the second coating roller assembly 5 and the traction roller assembly 6 are sequentially arranged on the frame 1 along its transmission direction; the preheating assembly 3 is used to adjust the temperature in the preheating channel 31, the first coating roller assembly 4 and the second coating roller assembly 5 are both used to apply silicone oil on the surface of the release paper substrate, and the traction roller assembly 6 is used to pull the release paper substrate to move; the first coating roller assembly 4 and the second coating roller assembly 5 are used to coat the surface of the release paper substrate with a silicone oil layer in turn, so that the silicone oil layer can be evenly coated on the surface of the release paper substrate, and the working conditions of the first coating roller assembly 4 and the second coating roller assembly 5 can be adjusted according to the coating thickness of the silicone oil layer; finally, the release paper substrate is pulled to the drying equipment at the rear end by the traction roller assembly 6 to realize the automatic processing of the release paper.

[0021] In actual use, the substrate feeding mechanism 2 ensures that the release paper substrate roll is stably introduced into the coating station. Before entering the coating station, the release paper substrate first passes through the preheating channel 31 of the preheating component 3. The guide roller assembly 32 in the preheating channel 31 enables the release paper substrate to achieve linear sliding. At the same time, the preheating component 3 heats the air in the channel so that the release paper substrate is heated by the hot air when passing through, evaporating the moisture on the coating surface, preventing the wet state, and improving the coating quality. Then, the release paper substrate passes through the first coating roller assembly 4 and the second coating roller assembly 5 in turn along the transmission direction of the frame 1. These two groups of components evenly coat the silicone oil on the surface of the release paper substrate. The coating gap can be adjusted according to the thickness of the silicone oil layer to control the adhesion thickness of the silicone oil layer on the surface of the release paper substrate. Finally, the traction roller assembly 6 pulls the release paper substrate to move to the drying equipment at the rear end to complete the automated processing of the release paper.

[0022] In this embodiment, the substrate feeding mechanism 2 includes a fixed frame 21 and a coil guide roller 22, and rotating plates 23 are respectively provided on both sides of the top of the fixed frame 21, and a sliding groove 24 opened to one side is provided on the rotating plate 23, and rotating components 25 are respectively provided at both ends of the coil guide roller 22, and the coil guide roller 22 is located between the two rotating plates 23, and the rotating component 25 is movably connected to the sliding groove 24, and a pressing roller 26 is provided on the fixed frame 21, and the pressing roller 26 is located on one side of the transmission direction of the coil guide roller 22. When in use, the roll guide roller 22 is disassembled from the rotating plate 23 in advance. During the disassembly process, the rotating assembly 25 is slid out from the open side of the sliding groove 24 to complete the disassembly of the roll guide roller 22, and then the release paper substrate roll is sleeved on the roll guide roller 22. After the sleeve is completed, the roll guide roller 22 is reinstalled on the rotating plate 23. When in use, the roll guide roller 22 rotates under the traction of the traction roller assembly 6, thereby achieving the effect of slowly releasing the release paper substrate roll. In addition, the pressure roller 26 is used to press the release paper substrate roll to avoid the problem of loosening of the roll.

[0023] like Figures 1 to 7 As shown, further, the preheating component 3 includes an insulation frame 33, the preheating channel 31 is located in the insulation frame 33, and an air distribution cover 34 is arranged on the insulation frame 33 above the preheating channel 31, the air distribution cover 34 is connected to the preheating channel 31, and a hot air component is arranged on the air distribution cover 34; the two ends of the insulation frame 33 are respectively connected to the substrate feeding mechanism 2 and the frame 1.

[0024] In this embodiment, the heat is kept in the preheating channel 31 by using the heat insulation frame 33 to prevent the heat from escaping to the outside, thereby improving the utilization rate of the heat; the hot air component is used to provide hot air to the preheating channel 31, so that the preheating channel 31 can be kept in a preheating state. At the same time, the hot air output by the hot air component is subjected to uniform wind treatment when passing through the wind uniformity cover, and finally the uniform hot air is delivered into the preheating channel 31, thereby avoiding the problem of local high temperature in the preheating channel 31, and also avoiding the problem of shaking of the release paper substrate caused by excessive wind speed, thereby improving the preheating effect of the release paper substrate.

[0025] It should be noted that the hot air component can be an existing hot air blower, blower or other equipment.

[0026] In another embodiment, the preheating component 3 includes an insulation frame 33, and a plurality of electric heating rods are distributed on the wall of the insulation frame 33, and the electric heating rods are arranged along the length direction of the wall of the insulation frame 33; when in use, the preheating temperature of the preheating channel 31 is adjusted by using the electric heating rods evenly distributed in the insulation frame 33 to achieve preheating treatment of the release paper substrate.

[0027] like Figures 1 to 7 As shown, further, an air balancing chamber 35 is formed in the air balancing cover 34, and a plurality of air outlet holes 36 connected to the preheating channel 31 are distributed at the bottom of the air balancing chamber 35, and air inlets are respectively arranged on both sides of the top of the air balancing cover 34, and the two air inlets are respectively connected to the hot air components; the air balancing cover uses its air balancing chamber 35 to slow down the wind speed of the hot air output by the hot air component, so as to achieve the effect of buffering the hot air. At the same time, the hot air is evenly treated by using the plurality of air outlet holes 36 distributed at the bottom of the air balancing chamber 35, so that the hot air blown into the preheating channel 31 is slower and more evenly, and the hot air can be evenly distributed at different positions of the preheating channel 31.

[0028] In this embodiment, the opening of the air outlet hole 36 is in a flared shape that gradually expands from the air uniformity chamber 35 toward the preheating channel 31; by setting the air outlet hole 36 to a flared shape, the problem of extrusion acceleration when the hot air flows through the air outlet hole 36 can be avoided, thereby effectively improving the uniformity of the hot air when it is discharged.

[0029] like Figures 1 to 7 As shown, further, a wind shield 37 is provided on the air inlet, and the wind shield 37 is connected to the hot air assembly, a sealing strip 38 is provided at the bottom of the wind shield 37, and a sealing wall 39 abutting against the sealing strip 38 is provided at the outer edge of the air inlet; by arranging the sealing strip 38 and the sealing wall 39, a sealing structure is formed between the wind shield 37 and the air inlet, and there is a certain height difference between the sealing strip 38 and the sealing wall 39, which extends the flow gap between the sealing strip 38 and the sealing wall 39, and effectively improves the sealing effect between the wind shield 37 and the air inlet. In addition, the wind shield 37 can be used to perform primary buffering on the hot air blown out by the hot air assembly, effectively slowing down the rate of hot air entering the wind equalizing cover.

[0030] like Figures 1 to 7 As shown, further, the first coating roller assembly 4 includes a heating coating roller 41 and a driving roller 42, and the two ends of the driving roller 42 are rotatably connected to the two ends of the frame 1 respectively, the heating coating roller 41 is located on one side of the driving roller 42, and the two ends of the heating coating roller 41 are movably connected to the frame 1 through a first push-pull assembly 43 respectively.

[0031] In this embodiment, the heated coating roller 41 is located on one side of the driving roller 42 and is movably connected to the frame 1 through the first push-pull assembly 43. The first push-pull assembly 43 allows the heated coating roller 41 to flexibly adjust the distance between the heated coating roller 41 and the driving roller 42 to meet the coating requirements of different specifications. The heating function of the heated coating roller 41 can effectively heat the silicone oil and improve the fluidity of the silicone oil during the coating process, thereby improving the coating effect and quality of the release paper substrate.

[0032] like Figures 1 to 7As shown, further, the heated coating roller 41 includes a first coating part 411, and the two ends of the first coating part 411 are respectively provided with second coating parts 412, and the temperature of the first coating part 411 is lower than the temperature of the two second coating parts 412; a rotating member 413 is provided on the outer side of the second coating part 412, and the rotating member 413 is rotatably connected to the first push-pull assembly 43; the heated coating roller 41 is formed into a heating partition through the first coating part 411 and the second coating part 412, so that the temperature of the two ends of the heated coating roller 41 is higher than the temperature of the middle section, which effectively improves the heating effect of the silicone oil. When the silicone oil is sprayed on the heated coating roller 41, when the heated coating roller 41 is running, the heat diffuses from the surface of the roller body to the two ends, and the temperature of the two ends of the roller body is lower than the middle part, which causes the temperature of the silicone oil at the two ends of the roller body to be lower than the temperature of the middle section. Therefore, setting the temperature of the two ends of the heated coating roller 41 to be higher than the temperature of the middle section can effectively improve the fluidity of the silicone oil, so that the heated coating roller 41 heats up the silicone oil more evenly.

[0033] like Figures 1 to 7As shown, further, the first coating portion 411 includes a first rolling core 4111, a first heat-conducting bracket 4112 is arranged on the periphery of the first rolling core 4111, a plurality of first heating cavities 4113 are distributed annularly on the first heat-conducting bracket 4112, and a first heating rod body 4114 is arranged in the first heating cavity 4113 along its length direction; the second coating portion 412 includes a second rolling core 4121, a second heat-conducting bracket 4122 is arranged on the periphery of the second rolling core 4121, a plurality of second heating cavities 4123 are distributed annularly on the second heat-conducting bracket 4122, and a first heating rod body 4114 is arranged in the second heating cavity 4123 along its length direction A second heating rod 4124 is provided in the length direction, and one side of the second rolling core 4121 is connected to the rotating member 413; the number of the second heating chambers 4123 is greater than the number of the first heating chambers 4113; the first heat-conducting bracket 4112 and the second heat-conducting brackets 4122 at both ends are connected by a coating layer 44; in actual application, when the first heating rod 4114 and the second heating rod 4124 begin to generate heat, the generated heat will be transferred to the surface of the first heat-conducting bracket 4112 and the second heat-conducting bracket 4122 through the conduction effect of the first heating chamber 4113 and the second heating chamber 4123. The end faces of the two heat-conducting brackets are connected to each other, and such a design can ensure that the heat is more evenly distributed between the first heat-conducting bracket 4112 and the second heat-conducting bracket 4122. At the same time, due to such a connection, the heat on the first heat-conducting bracket 4112 and the second heat-conducting bracket 4122 can be synchronously conducted to the coating layer 44, thereby effectively heating the silicone oil. In addition, by carefully designing the first heating chamber 4113 and the second heating chamber 4123 with different distribution densities, the overall temperature of the heated coating roller 41 can be flexibly adjusted, thereby effectively avoiding the temperature difference problem that may occur between the two ends and the middle section of the coating roller.

[0034] like Figures 1 to 7As shown, further, the rotating member 413 includes a rotating shaft portion 4131, and the rotating shaft portion 4131 is connected to the second rolling core 4121 through a sealing portion 4132, and the sealing portion 4132 is covered on the end of the second heat-conducting bracket 4122; the first push-pull assembly 43 includes a first telescopic portion 431 and a swing plate 432, the first telescopic portion 431 is hinged to the frame 1, the swing plate 432 is rotatably connected to the frame 1, and one end of the swing plate 432 is hinged to the frame 1. The output end of the first telescopic portion 431 is hinged, and the other end of the swing plate 432 is rotatably connected to the rotating shaft portion 4131; when in use, the sealing portion 4132 is used to seal the outer end faces of both ends of the second heat-conducting bracket 4122 to prevent heat from escaping from the end face of the second coating portion 412; when it is necessary to adjust the use position of the heated coating roller 41, the swing plate 432 is pushed and pulled by the first telescopic portion 431 to use the swing plate 432 to adjust the distance between the heated coating roller 41 and the transmission roller 42.

[0035] like Figures 1 to 7 As shown, further, the second coating roller assembly 5 includes a first pressure roller 51 and a second pressure roller 52, the first pressure roller 51 is rotatably connected to the frame 1, the second pressure roller 52 is located on one side of the first pressure roller 51, and the two ends of the second pressure roller 52 are movably connected to the frame 1 through a second push-pull assembly 53, respectively, and the second push-pull assembly 53 is used to adjust the distance between the second pressure roller 52 and the first pressure roller 51; by using the second coating roller assembly, the thickness of the silicone oil layer on the surface of the release paper substrate can be accurately adjusted. Further, by adjusting the distance between the first pressure roller 51 and the second pressure roller 52, the coating thickness of the silicone oil layer can be finely controlled to ensure that the silicone oil layer is evenly covered on the release paper substrate. In addition, the function of the second push-pull assembly 53 is to push or pull the second pressure roller 52 to achieve a change in the distance between it and the first pressure roller 51.

[0036] like Figures 1 to 7As shown, further, the second push-pull assembly 53 includes a second telescopic part 531, the second telescopic part 531 is connected to the frame 1, the output end of the second telescopic part 531 is provided with a bearing assembly 532, the bearing assembly 532 is rotatably connected to the end of the second pressure roller 52, the bearing assembly 532 is provided with a slider 533, and the frame 1 is provided with a slide rail 534 slidably connected to the slider 533; the second telescopic part 531 in the second push-pull assembly 53 can achieve telescopic movement by being connected to the frame 1. The bearing assembly 532 provided at the output end of the second telescopic part 531 is rotatably connected to the end of the second pressure roller 52, so that the second pressure roller 52 rotates smoothly under the support of the bearing assembly 532. At the same time, the slider 533 provided on the bearing assembly 532 is slidably connected to the slide rail 534 provided on the frame 1, and this sliding connection structure enables the second pressure roller 52 to move along the direction of the slide rail 534. When the second telescopic portion 531 performs telescopic movement, it can drive the second pressing roller 52 to move relative to the frame 1 through the cooperation of the bearing assembly 532, the slider 533 and the slide rail 534, thereby adjusting the distance between the first pressing roller 51 and the second pressing roller 52.

[0037] In this embodiment, the traction roller assembly 6 includes a traction roller 61 arranged at the discharge end of the frame 1, and a drive motor is arranged on the frame 1, and the drive motor is transmission-connected to one end of the traction roller 61; when in use, the drive motor is used to drive the traction roller 61 to rotate, thereby realizing the traction action of the release paper substrate in turn.

[0038] In summary, the preheating channel 31 and the preheating component 3 preheat the release paper substrate to evaporate water vapor, prevent moisture, and improve the silicone oil coating effect. The first and second coating roller assemblies 5 apply the silicone oil layer in turn to ensure uniform coverage and adjust the coating thickness. The substrate feeding mechanism 2 stably introduces the coil for easy replacement. The insulation frame 33 of the preheating component 3 maintains heat, and the hot air component and the air distribution cover ensure uniform preheating to prevent the release paper from shaking. The heated coating roller 41 heats the silicone oil, and the partition design improves the heating effect. The second coating roller assembly 5 accurately controls the thickness of the silicone oil layer. The traction roller assembly 6 stably pulls the release paper to the drying equipment to achieve automated processing.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A release paper coating machine, characterized in that: It includes a frame and a substrate feeding mechanism, the substrate feeding mechanism is located at the feeding end of the frame, the substrate feeding mechanism is connected to the frame through a preheating component, a preheating channel is formed in the preheating component, a guide roller assembly is arranged in the preheating channel, and a first coating roller assembly, a second coating roller assembly and a traction roller assembly are sequentially arranged on the frame along its transmission direction; the preheating component is used to adjust the temperature in the preheating channel, the first coating roller assembly and the second coating roller assembly are both used to apply silicone oil to the surface of the release paper substrate, and the traction roller assembly is used to pull the release paper substrate to move.

2. A release paper coating machine according to claim 1, characterized in that: The preheating component includes an insulation frame, the preheating channel is located in the insulation frame, an air distribution cover is provided on the insulation frame above the preheating channel, the air distribution cover is connected to the preheating channel, and a hot air component is provided on the air distribution cover; the two ends of the insulation frame are respectively connected to the substrate feeding mechanism and the frame.

3. A release paper coating machine according to claim 2, characterized in that: An air balancing cavity is formed in the air balancing cover, a plurality of air outlet holes connected to the preheating channel are distributed at the bottom of the air balancing cavity, air inlets are respectively arranged on both sides of the top of the air balancing cover, and the two air inlets are respectively connected to the hot air components.

4. A release paper coating machine according to claim 3, characterized in that: The air inlet is provided with a wind shield, the wind shield is connected to the hot air assembly, a sealing strip is provided at the bottom of the wind shield, and a sealing wall abutting against the sealing strip is provided at the outer edge of the air inlet.

5. A release paper coating machine according to claim 1, characterized in that: The first coating roller assembly includes a heating coating roller and a transmission roller, the two ends of the transmission roller are respectively rotatably connected to the two ends of the frame, the heating coating roller is located on one side of the transmission roller, and the two ends of the heating coating roller are respectively movably connected to the frame through a first push-pull assembly.

6. A release paper coating machine according to claim 5, characterized in that: The heated coating roller includes a first coating part, and second coating parts are respectively arranged at both ends of the first coating part, and the temperature of the first coating part is lower than the temperature of the two second coating parts; a rotating member is arranged on the outer side of the second coating part, and the rotating member is rotatably connected to the first push-pull assembly.

7. A release paper coating machine according to claim 6, characterized in that: The first coating part includes a first rolling core, a first heat-conducting bracket is arranged on the periphery of the first rolling core, a plurality of first heating cavities are distributed in an annular manner on the first heat-conducting bracket, and a first heating rod body is arranged in the first heating cavity along its length direction; the second coating part includes a second rolling core, a second heat-conducting bracket is arranged on the periphery of the second rolling core, a plurality of second heating cavities are distributed in an annular manner on the second heat-conducting bracket, and a second heating rod body is arranged in the second heating cavity along its length direction, and one side of the second rolling core is connected to the rotating part; the number of the second heating cavities is greater than the number of the first heating cavities; the first heat-conducting bracket and the second heat-conducting bracket at both ends are connected by a coating layer.

8. A release paper coating machine according to claim 7, characterized in that: The rotating member includes a rotating shaft portion, which is connected to the second rolling core through a sealing portion, and the sealing portion is covered on the end of the second heat-conducting bracket; the first push-pull assembly includes a first telescopic portion and a swing plate, the first telescopic portion is hinged to the frame, the swing plate is rotatably connected to the frame, one end of the swing plate is hinged to the output end of the first telescopic portion, and the other end of the swing plate is rotatably connected to the rotating shaft portion.

9. The release paper coating machine according to claim 1, characterized in that: The second coating roller assembly includes a first pressure roller and a second pressure roller, the first pressure roller is rotatably connected to the frame, the second pressure roller is located on one side of the first pressure roller, and both ends of the second pressure roller are movably connected to the frame through a second push-pull assembly, and the second push-pull assembly is used to adjust the distance between the second pressure roller and the first pressure roller.

10. A release paper coating machine according to claim 9, characterized in that: The second push-pull assembly includes a second telescopic part, which is connected to the frame. A bearing assembly is provided at the output end of the second telescopic part. The bearing assembly is rotatably connected to the end of the second pressure roller. A sliding block is provided on the bearing assembly. A sliding rail portion slidably connected to the sliding block is provided on the frame.

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