A release paper coater

Abstract

The present invention relates to the technical field of coating equipment, and particularly relates to a release paper coater, which includes a frame and a base material feeding mechanism. The base material feeding mechanism is located at the feeding end of the frame, and the base material feeding mechanism is connected to the frame through a preheating assembly. A preheating channel is formed in the preheating assembly, and 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, both the first coating roller assembly and the second coating roller assembly are used to apply silicone oil on the surface of the release paper base material, and the traction roller assembly is used to traction 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 helps it move; the preheating assembly heats the air in the channel to ensure that the release paper base material is evenly heated, evaporate moisture, and prevent dampness; subsequently, the first and second coating roller assemblies sequentially and evenly coat a silicone oil layer, and precisely adjust the thickness of the silicone oil layer.

Description

Technical Field

[0001] The present invention relates to the technical field of coating equipment, and particularly relates to a release paper coater. Background Art

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

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

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present invention is to provide a release paper coater, 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 purpose, the present invention adopts the following technical solutions:

[0006] A release paper coater 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. 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. Both the first coating roller assembly and the second coating roller assembly are used to apply silicone oil on the surface of the release paper substrate. The traction roller assembly is used to traction the release paper substrate to move.

[0007] In the release paper coater, the preheating component includes a heat insulation frame. The preheating channel is located inside the heat insulation frame. An air distribution cover is arranged above the preheating channel on the heat insulation frame. The air distribution cover is communicated with the preheating channel. A hot air component is arranged on the air distribution cover. Both ends of the heat insulation frame are respectively connected to the substrate feeding mechanism and the frame.

[0008] In the release paper coater, an air distribution cavity is formed in the air distribution cover. A plurality of air outlet holes communicated with the preheating channel are distributed at the bottom of the air distribution cavity. Air inlet openings are respectively arranged on both sides of the top of the air distribution cover. The two air inlet openings are respectively connected to the hot air component.

[0009] In the described release paper coater, a wind shield is provided on the air inlet, 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 for abutting against the sealing strip is provided at the outer edge of the air inlet.

[0010] In the described release paper coater, the first coating roll assembly includes a heating coating roll and a driving roll. The two ends of the driving roll are respectively rotatably connected to the two ends of the machine frame. The heating coating roll is located on one side of the driving roll, and the two ends of the heating coating roll are respectively movably connected to the machine frame through a first push-pull assembly.

[0011] In the described release paper coater, the heating coating roll includes a first coating part. Second coating parts are respectively provided at the two ends of the first coating part. The temperature of the first coating part is lower than the temperatures of the two second coating parts. A rotating part is provided on the outer side of the second coating part, and the rotating part is rotatably connected to the first push-pull assembly.

[0012] In the described release paper coater, the first coating part includes a first rolling core. A first heat-conducting support is provided on the periphery of the first rolling core. A plurality of first heating cavities are annularly distributed on the first heat-conducting support. A first heating rod body is arranged along the length direction in the first heating cavity. The second coating part includes a second rolling core. A second heat-conducting support is provided on the periphery of the second rolling core. A plurality of second heating cavities are annularly distributed on the second heat-conducting support. A second heating rod body is arranged along the length direction in the second heating cavity. 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 support and the second heat-conducting supports at both ends are connected through a coating layer.

[0013] In the described release paper coater, the rotating part includes a rotating shaft part. The rotating shaft part is connected to the second rolling core through a sealing part. The sealing part covers the end of the second heat-conducting support. The first push-pull assembly includes a first telescopic part and a swing plate. The first telescopic part is hinged to the machine frame. The swing plate is rotatably connected to the machine frame. One end of the swing plate is hinged to the output end of the first telescopic part. The other end of the swing plate is rotatably connected to the rotating shaft part.

[0014] In the described release paper coater, the second coating roll assembly includes a first pressing roll and a second pressing roll. The first pressing roll is rotatably connected to the machine frame. The second pressing roll is located on one side of the first pressing roll. The two ends of the second pressing roll are respectively movably connected to the machine frame through a second push-pull assembly. The second push-pull assembly is used to adjust the distance between the second pressing roll and the first pressing roll.

[0015] In the release paper coater described above, the second push-pull assembly includes a second telescopic part, the second telescopic part is connected to the frame, a bearing assembly is arranged at the output end of the second telescopic part, the bearing assembly is rotatably connected to the end of the second pressing roller, a slider is arranged on the bearing assembly, and a slide rail part slidably connected to the slider is arranged on the frame.

[0016] Beneficial effects:

[0017] The present invention provides a release paper coater. Before coating, the release paper substrate needs to first pass through a preheating channel and achieve linear sliding in the channel with the help of a guide roller assembly. At the same time, the preheating assembly heats the air in the channel to ensure that the release paper substrate is fully heated by hot air when passing through, so as to evaporate the moisture on the surface, prevent dampness, and improve the coating effect. Then, a silicone oil layer is uniformly coated on the surface of the release paper substrate in sequence by a first coating roller assembly and a second coating roller assembly. By adjusting the working states of these two assemblies, the thickness of the silicone oil layer can be accurately controlled. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the release paper coater provided by the present invention;

[0019] Figure 2 It is a disassembled structure schematic diagram of the preheating assembly in the release paper coater provided by the present invention;

[0020] Figure 3 It is a disassembled structure schematic diagram of the heating coating roller in the release paper coater provided by the present invention Figure 1 ;

[0021] Figure 4 It is a disassembled structure schematic diagram of the heating coating roller in the release paper coater provided by the present invention Figure 2 ;

[0022] Figure 5 It is a schematic diagram of the assembled structure of the frame, the first coating roller assembly, the second coating roller assembly and the traction roller assembly in the release paper coater provided by the present invention Figure 1 ;

[0023] Figure 6 It is a schematic diagram of the assembled structure of the frame, the first coating roller assembly, the second coating roller assembly and the traction roller assembly in the release paper coater provided by the present invention Figure 2 ;

[0024] Figure 7 It is a schematic diagram of the structure of the base material feeding mechanism in the release paper coater provided by the present invention.

[0025] Description of main component symbols: 1 - frame, 2 - base material feeding mechanism, 21 - fixed frame, 22 - coil guiding roller, 23 - rotating plate, 24 - sliding groove, 25 - rotating assembly, 26 - pressure roller, 3 - preheating assembly, 31 - preheating channel, 32 - guiding roller assembly, 33 - heat insulation frame, 34 - air distribution cover, 35 - air distribution cavity, 36 - air outlet hole, 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 support, 4113 - first heating cavity, 4114 - first heating rod, 412 - second coating part, 4121 - second rolling core, 4122 - second heat conducting support, 4123 - second heating cavity, 4124 - second heating rod, 413 - rotating part, 4131 - rotating shaft part, 4132 - sealing part, 42 - driving roller, 43 - first pushing and pulling assembly, 431 - first telescopic part, 432 - swing plate, 44 - coating layer, 5 - second coating roller assembly, 51 - first pressing roller, 52 - second pressing roller, 53 - second pushing and pulling assembly, 531 - second telescopic part, 532 - bearing assembly, 533 - slider part, 534 - slide rail part, 6 - traction roller assembly, 61 - traction roller. Detailed implementation manners

[0026] The present invention provides a release paper coater. To make the objectives, technical solutions and effects of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "middle part", "inner side", "outer side", etc. are the orientation or positional relationships of the present invention based on the drawings, and are only for the convenience of describing the present invention and simplifying the description. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0028] Please refer to Figures 1 to 7, the present invention provides a release paper coater, which includes a frame 1 and a base material feeding mechanism 2. The base material feeding mechanism 2 is located at the feeding end of the frame 1. The release paper base material roll is introduced into the coating station by the base material feeding mechanism 2 to improve the stability of the release paper base material during feeding. The base material feeding mechanism 2 is connected to the frame 1 through a preheating assembly 3. A preheating channel 31 is formed in the preheating assembly 3, and a guide roller assembly 32 is arranged in the preheating channel 31. Before the release paper base material is coated, it needs to pass through the preheating channel 31 first. The guide roller assembly 32 is used to realize the linear sliding movement of the release paper base material in the preheating channel 31. At the same time, the air in the preheating channel 31 is heated by the preheating assembly 3. When the release paper base material 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 base material evaporates, avoiding the release paper base material being in a wet state and improving the coating effect between the release paper base material and the silicone oil. A first coating roller assembly 4, a second coating roller assembly 5 and a 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. Both the first coating roller assembly 4 and the second coating roller assembly 5 are used to apply silicone oil on the surface of the release paper base material. The traction roller assembly 6 is used to traction the release paper base material to move. The silicone oil layer is applied to the surface of the release paper base material in sequence by the first coating roller assembly 4 and the second coating roller assembly 5, so that the silicone oil layer can be evenly coated on the surface of the release paper base material, 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 base material is tractioned to the drying equipment at the rear end by the traction roller assembly 6 to realize the automatic processing of the release paper.

[0029] In actual use, the base material feeding mechanism 2 ensures that the release paper base material roll is stably introduced into the coating station. Before entering the coating station, the release paper base material first passes through the preheating channel 31 of the preheating assembly 3. The guide roller assembly 32 in the preheating channel 31 enables the release paper base material to achieve linear sliding. At the same time, the preheating assembly 3 heats the air in the channel, so that the release paper base material 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 base material passes through the first coating roller assembly 4 and the second coating roller assembly 5 in sequence along the transmission direction of the frame 1. These two sets of assemblies evenly coat the silicone oil on the surface of the release paper base material. 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 base material. Finally, the traction roller assembly 6 tractiones the release paper base material to move to the drying equipment at the rear end to complete the automatic processing of the release paper.

[0030] In this embodiment, the base material feeding mechanism 2 includes a fixing frame 21 and a coil guiding roller 22. On both sides of the top of the fixing frame 21, rotating plates 23 are respectively arranged. A sliding groove 24 opening towards one side is arranged on the rotating plate 23. Rotating components 25 are respectively arranged at both ends of the coil guiding roller 22. The coil guiding roller 22 is located between the two rotating plates 23, and the rotating component 25 is movably connected with the sliding groove 24. A pressing roller 26 is arranged on the fixing frame 21, and the pressing roller 26 is located on one side of the transmission direction of the coil guiding roller 22. During use, the coil guiding roller 22 is disassembled from the rotating plate 23 in advance. During the disassembly process, the rotating component 25 is slid out from the opening side of the sliding groove 24, so as to complete the disassembly of the coil guiding roller 22. Then, the release paper base material coil is sleeved on the coil guiding roller 22. After the sleeving is completed, the coil guiding roller 22 is reinstalled on the rotating plate 23. During use, the coil guiding roller 22 rotates under the traction of the traction roller assembly 6, so as to achieve the effect of slowly releasing the release paper base material coil. In addition, the pressing roller 26 is used to press the release paper base material coil to avoid the problem of the coil becoming loose.

[0031] As Figures 1 to 7 shown, further, the preheating component 3 includes a heat insulation frame 33. The preheating channel 31 is located inside the heat insulation frame 33. An air equalizing cover 34 is arranged above the preheating channel 31 on the heat insulation frame 33. The air equalizing cover 34 is communicated with the preheating channel 31, and a hot air component is arranged on the air equalizing cover 34. Both ends of the heat insulation frame 33 are respectively connected with the base material feeding mechanism 2 and the frame 1.

[0032] In this embodiment, the heat insulation frame 33 is used to keep the heat inside the preheating channel 31, avoiding the heat from escaping outward and improving the utilization rate of the heat. The hot air component is used to provide hot air into the preheating channel 31, so that the preheating channel 31 can maintain a preheated state. At the same time, the hot air output by the hot air component is evenly distributed when passing through the air equalizing cover, and finally the uniform hot air is conveyed into the preheating channel 31, thus avoiding the problem of local high temperature in the preheating channel 31 and also avoiding the problem of the release paper base material shaking due to too fast wind speed, and improving the preheating effect of the release paper base material.

[0033] It should be noted that the hot air component can be existing equipment such as a hot air blower and a blower.

[0034] In another embodiment, the preheating component 3 includes a heat insulation frame 33, and a plurality of electric heating rod bodies are distributed on the wall surface of the heat insulation frame 33. The electric heating rod bodies are arranged along the length direction of the wall surface of the heat insulation frame 33. During use, the preheating temperature of the preheating channel 31 is adjusted by the electric heating rod bodies evenly distributed in the heat insulation frame 33 to realize the preheating treatment of the release paper base material.

[0035] AsFigures 1 to 7 As shown, further, an air distribution cavity 35 is formed inside the air distribution cover 34. A plurality of air outlet holes 36 communicating with the preheating channel 31 are distributed at the bottom of the air distribution cavity 35. Air inlet openings are respectively arranged on both sides of the top of the air distribution cover 34, and the two air inlet openings are respectively connected to the hot air assembly. The air distribution cover uses its air distribution cavity 35 to slow down the wind speed of the hot air output by the hot air assembly, achieving the effect of buffering the hot air. At the same time, the hot air is evenly distributed by the plurality of air outlet holes 36 distributed at the bottom of the air distribution cavity 35, making the hot air blown into the preheating channel 31 slower and more uniform, and the hot air can be evenly distributed at different positions of the preheating channel 31.

[0036] In this embodiment, the opening of the air outlet hole 36 is in a flared shape that gradually expands in the direction from the air distribution cavity 35 towards the preheating channel 31. By setting the air outlet hole 36 in a flared shape, the problem of extrusion acceleration of the hot air when flowing through the air outlet hole 36 can be avoided, effectively improving the uniformity of the hot air when it exits.

[0037] As Figures 1 to 7 shown, further, a wind shield 37 is arranged on the air inlet opening. The wind shield 37 is connected to the hot air assembly. A sealing strip 38 is arranged at the bottom of the wind shield 37, and a sealing wall 39 abuting against the sealing strip 38 is arranged on the outer edge of the air inlet opening. 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 opening. There is a certain height difference between the sealing strip 38 and the sealing wall 39, extending the flow gap between the sealing strip 38 and the sealing wall 39, effectively improving the sealing effect between the wind shield 37 and the air inlet opening. In addition, the wind shield 37 can perform primary buffering on the hot air blown out by the hot air assembly, effectively slowing down the hot air rate entering the air distribution cover.

[0038] As Figures 1 to 7 shown, further, the first coating roller assembly 4 includes a heating coating roller 41 and a driving roller 42. The two ends of the driving roller 42 are respectively rotatably connected to the two ends of the frame 1. 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 respectively movably connected to the frame 1 through a first push-pull assembly 43.

[0039] In this embodiment, the heating 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 enables the heating coating roller 41 to flexibly adjust the distance from the driving roller 42 to adapt to different coating requirements. The heating function of the heating coating roller 41 can effectively heat the silicone oil, improving the fluidity of the silicone oil during the coating process, thereby improving the coating effect and quality on the release paper substrate.

[0040] As Figures 1 to 7As shown, further, the heating coating roller 41 includes a first coating portion 411, and second coating portions 412 are respectively arranged at both ends of the first coating portion 411. The temperature of the first coating portion 411 is lower than the temperatures of the two second coating portions 412. A rotating member 413 is arranged outside the second coating portion 412, and the rotating member 413 is rotatably connected to the first push-pull assembly 43. The heating coating roller 41 forms a heating zone through the first coating portion 411 and the second coating portion 412, so that the temperatures at both ends of the heating coating roller 41 are higher than the temperature at the middle section, effectively improving the heating effect on the silicone oil. When the silicone oil is applied to the heating coating roller 41 and the heating coating roller 41 is running, since heat diffuses from the surface of the roller body to both ends, the temperatures at both ends of the roller body are lower than the middle part, which results in the temperature of the silicone oil at both ends of the roller body being lower than the temperature at the middle section. Therefore, setting the temperatures at both ends of the heating coating roller 41 to be higher than the temperature at the middle section can effectively improve the fluidity of the silicone oil and make the heating of the silicone oil by the heating coating roller 41 more uniform.

[0041] As Figures 1 to 7As shown, further, the first coating part 411 includes a first rolling core 4111, a first heat-conducting support 4112 is arranged on the periphery of the first rolling core 4111, a plurality of first heating cavities 4113 are annularly distributed on the first heat-conducting support 4112, and a first heating rod 4114 is arranged along the length direction in the first heating cavity 4113; the second coating part 412 includes a second rolling core 4121, a second heat-conducting support 4122 is arranged on the periphery of the second rolling core 4121, a plurality of second heating cavities 4123 are annularly distributed on the second heat-conducting support 4122, and a second heating rod 4124 is arranged along the length direction in the second heating cavity 4123, and one side of the second rolling core 4121 is connected to the rotating part 413; the number of the second heating cavities 4123 is greater than the number of the first heating cavities 4113; the first heat-conducting support 4112 and the second heat-conducting supports 4122 at both ends are connected by a coating layer 44; in the actual application process, when the first heating rod 4114 and the second heating rod 4124 start to generate heat, the generated heat will be transferred to the surfaces of the first heat-conducting support 4112 and the second heat-conducting support 4122 through the conduction of the first heating cavity 4113 and the second heating cavity 4123. The end faces of these two heat-conducting supports are connected to each other, and such a design can ensure that the heat is more evenly distributed between the first heat-conducting support 4112 and the second heat-conducting support 4122. At the same time, due to this connection, the heat on the first heat-conducting support 4112 and the second heat-conducting support 4122 can be synchronously conducted to the coating layer 44, and then the silicone oil can be effectively heated. In addition, by carefully designing the first heating cavity 4113 and the second heating cavity 4123 with different distribution densities, the overall temperature of the heating coating roller 41 can be flexibly adjusted, thereby effectively avoiding the possible temperature difference problem between the two ends and the middle section of the coating roller.

[0042] As Figures 1 to 7As shown, further, the rotating member 413 includes a rotating shaft portion 4131. The rotating shaft portion 4131 is connected to the second rolling core 4121 through a sealing portion 4132. The sealing portion 4132 covers 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. One end of the swing plate 432 is hinged to the output end of the first telescopic portion 431. The other end of the swing plate 432 is rotatably connected to the rotating shaft portion 4131. During use, the sealing portion 4132 is used to block 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 heating coating roller 41, the first telescopic portion 431 pushes and pulls the swing plate 432 to adjust the distance between the heating coating roller 41 and the driving roller 42 by using the swing plate 432.

[0043] As 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. Both ends of the second pressure roller 52 are movably connected to the frame 1 through a second push-pull assembly 53. 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 evenly covers 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 realize the change in the distance between it and the first pressure roller 51.

[0044] As 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.

[0045] 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.

[0046] 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.

[0047] 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: The invention 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 through a preheating assembly, a preheating channel is formed in the preheating assembly, 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 the transmission direction thereof; 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 on the surface of the release paper substrate, and the traction roller assembly is used to traction the release paper substrate to move; The first coating roller assembly comprises 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; the heated coating roller comprises a first coating part, the two ends of the first coating part are respectively provided with a second coating part, the temperature of the first coating part is lower than the temperature of the two second coating parts; a rotating member is provided on the outer side of the second coating part, and the rotating member is rotatably connected to the first push-pull assembly; the first coating part comprises a first rolling core, the first rolling core A first heat-conducting bracket is arranged on the periphery of the 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 comprises 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 member; 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 brackets at both ends are connected by a coating layer; 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.

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 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.

6. A release paper coating machine according to claim 1, 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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