Scraper slit micro-concave three-in-one coating machine

Abstract

The utility model relates to the technical field of coating machines, in particular to a scraper slit micro-concave three-in-one coating machine which comprises a machine frame, and the machine frame is provided with an unwinding assembly, a micro-concave coating assembly, a slit coating assembly, a comma scraper coating assembly, a front film covering assembly, a drying assembly, a UV curing assembly, an air cooling assembly, a rear film covering assembly and a winding assembly. The unwinding assembly is used for placing a base material roll and conveying a base material, the micro-concave coating assembly, the slit coating assembly and the slit coating assembly are used for coating the base material, the front film covering assembly is used for covering the base material with a film, the drying assembly is used for drying the coated base material, the rear film covering assembly is used for covering the base material with a film, and the film covering assembly is used for covering the base material with a film. The winding assembly is used for storing a base material. The coating machine has the effect that a single coating machine can meet various coating modes.

Description

Technical Field

[0001] This utility model relates to the technical field of coating machines, and in particular to a three-in-one coating machine with a doctor blade, slit, and micro-concave design. Background Technology

[0002] A coating machine is an important piece of industrial equipment, mainly used to uniformly coat liquid materials such as adhesives, coatings, and inks onto solid surfaces. It is primarily used for surface coating processes on substrates such as films, paper, fabrics, and metals. It coats rolls of substrate with a layer of specific functional adhesive, coating, or ink, and after drying, cuts them into sheets or rewinds them. Coating machines can be classified into various types based on their coating methods and principles, such as brush coating machines, air knife coating machines, doctor blade coating machines, roller coating machines, spray coating machines, and curtain coating machines. However, current single coating machines offer relatively limited coating methods and cannot meet the needs of diverse coating processes. When different coating methods are required, multiple coating machines of different types are needed, resulting in higher costs. Utility Model Content

[0003] In order to enable a single coating machine to meet multiple coating methods, this utility model provides a three-in-one coating machine with a doctor blade, slit, and micro-concave design, which addresses the problems of the prior art.

[0004] This utility model provides a three-in-one coating machine for slit micro-concave and scraper applications, which adopts the following technical solution:

[0005] A three-in-one doctor blade, slot, and microgravure coating machine includes a frame on which are arranged an unwinding assembly, a microgravure coating assembly, a slot coating assembly, a comma doctor blade coating assembly, a pre-coating assembly, a drying assembly, a UV curing assembly, an air-cooling assembly, a post-coating assembly, and a rewinding assembly. The unwinding assembly is used to place the base material roll and convey the substrate. The microgravure coating assembly, slot coating assembly, and slot coating assembly are used to coat the substrate. The pre-coating assembly is used to pre-coat the substrate. The drying assembly is used to dry the coated substrate. The post-coating assembly is used to post-coat the substrate. The rewinding assembly is used to store the substrate.

[0006] Preferably, the unwinding assembly includes an unwinding rack disposed on the frame, an unwinding air shaft rotatably disposed on the unwinding rack along the width direction of the substrate, and an unwinding motor disposed on the unwinding rack. The substrate roll is sleeved on the unwinding air shaft, and the unwinding motor is used to drive the unwinding air shaft to rotate. A guide roller is disposed on the frame, and the substrate is wound around the guide roller.

[0007] Preferably, the microgravure coating assembly includes a microgravure frame disposed on the frame, a glue tank disposed on the microgravure frame, and a microgravure roller rotatably disposed on the microgravure frame along the width direction of the substrate. A microgravure motor is disposed on the microgravure frame to drive the microgravure roller to rotate. Two guide rollers are rotatably disposed on the frame, and the two guide rollers are respectively located on opposite sides of the microgravure roller. The substrate is wrapped around the two guide rollers and covers and is connected to the upper circumferential surface of the microgravure roller. The lower circumferential surface of the microgravure roller extends into the glue tank. A lifting cylinder is disposed on the frame, and the piston rod of the lifting cylinder is connected to the microgravure frame.

[0008] Preferably, the slot coating assembly includes a back roller rotatably mounted on the frame along the width direction of the substrate, a slot frame slidably mounted on the frame, and a slot coating head mounted on the slot frame. The coating end of the slot coating head faces the back roller, the substrate is wrapped around the back roller, a drive screw is rotatably mounted on the frame, the drive screw is threaded to the slot frame, a drive motor is mounted on the frame to drive the drive screw to rotate, the drive screw drives the slot coating head to move closer to or away from the back roller, and a rotary motor is mounted on the frame to drive the back roller to rotate.

[0009] Preferably, the comma-shaped doctor blade coating assembly includes a mounting base slidably connected to the frame, a comma-shaped doctor blade rotatably mounted on the mounting base, and a baffle mounted on the frame. The upper surface of the baffle is used to place adhesive. The substrate passes through the baffle and the back roller, and the substrate passes through the comma-shaped doctor blade and the back roller. The frame is provided with a drive cylinder that drives the comma-shaped doctor blade closer to or away from the back roller. The piston rod of the drive cylinder is connected to the mounting base. An adjusting screw is rotatably mounted on the frame and threadedly connected to the baffle. The adjusting screw drives the baffle closer to or away from the back roller.

[0010] Preferably, the pre-coating assembly includes a pre-coating air shaft rotatably mounted on the frame along the width direction of the substrate, a bottom roller rotatably mounted on the frame, a lifting block slidably mounted on the frame, and a pressing roller rotatably mounted on the lifting block. A lifting screw is threadedly connected to the frame, and one end of the lifting screw is rotatably connected to the lifting block. The lifting screw is used to drive the pressing roller closer to or away from the bottom roller. The pre-coating air shaft is used to place the pre-protective film. The substrate and the pre-protective film are passed between the bottom roller and the pressing roller.

[0011] Preferably, the drying assembly includes an oven disposed on the frame, one end of the oven being provided with a feed inlet for feeding the substrate, and the other end of the oven being provided with a discharge outlet for discharging the substrate.

[0012] Preferably, the post-coating assembly includes a post-coating air shaft mounted on the frame, a rear roller rotatably mounted on the frame, a sliding block slidably mounted on the frame, and a pressure roller rotatably mounted on the lifting block. A sliding screw is threaded onto the frame, and one end of the sliding screw is rotatably connected to the sliding block. The sliding screw is used to drive the pressure roller closer to or away from the rear roller. The post-coating air shaft is used to place the post-protective film. The substrate and the post-protective film are passed between the rear roller and the pressure roller.

[0013] Preferably, the winding assembly includes a winding rack disposed on the frame, a winding air shaft rotatably disposed on the winding rack along the width direction of the substrate, and a winding motor disposed on the winding rack. The substrate roll is sleeved on the winding air shaft, and the winding motor is used to drive the winding air shaft to rotate.

[0014] Preferably, the UV curing assembly includes a curing chamber mounted on the frame and a UV lamp mounted inside the curing chamber. The substrate passes through the curing chamber, and the UV lamp irradiates the coated surface of the substrate. The air-cooling assembly includes an air-cooling frame mounted on the frame and a plurality of cooling fans mounted on the air-cooling frame. The exhaust ends of the cooling fans face the surface of the substrate.

[0015] In summary, this utility model includes at least one of the following beneficial technical effects of the three-in-one coating machine with scraper, slit, and micro-concave design:

[0016] When micro-gravure coating is required, the substrate is wound around the guide roller and the micro-gravure roller, and the micro-gravure roller applies the adhesive from the glue tank to the surface of the substrate. When slot coating is required, the slot coating head dispenses adhesive and applies it to the surface of the substrate. When blade coating is required, the adhesive on the upper surface of the baffle is applied to the surface of the substrate, and then the comma blade spreads the adhesive evenly. Thus, a single machine can perform multiple coating methods on the substrate, reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the unwinding assembly in this utility model.

[0021] Figure 5This is a schematic diagram of the slit coating assembly and the comma-shaped doctor blade coating assembly in this utility model.

[0022] Figure 6 This is a schematic diagram of the micro-concave coating component in this utility model.

[0023] Figure 7 This is a schematic diagram of the micro-concave coating component in this utility model.

[0024] Figure 8 This is a schematic diagram of the slit coating assembly in this utility model.

[0025] Figure 9 This is a schematic diagram of the slit coating assembly in this utility model.

[0026] Figure 10 This is a schematic diagram of the structure of the comma-shaped doctor blade coating assembly in this utility model.

[0027] Figure 11 This is a schematic diagram of the structure of the comma-shaped doctor blade coating assembly in this utility model.

[0028] Figure 12 This is a schematic diagram of the front coating assembly in this utility model.

[0029] Figure 13 This is a schematic diagram of the structure of the post-coating assembly in this utility model.

[0030] Figure 14 This is a schematic diagram of the structure of the post-coating assembly in this utility model.

[0031] Figure 15 This is a schematic diagram of the winding assembly in this utility model.

[0032] In the diagram: 1. Frame; 2. Unwinding assembly; 21. Unwinding frame; 22. Unwinding air shaft; 23. Unwinding motor; 24. Guide roller; 3. Gravure coating assembly; 31. Gravure frame; 32. Gravure roller; 33. Gravure motor; 34. Guide roller; 35. Lifting cylinder; 36. Glue tank; 4. Slit coating assembly; 41. Back roller; 411. Rotary motor; 42. Slit frame; 43. Slit coating head; 44. Drive screw; 45. Drive motor; 5. Comma doctor blade coating assembly; 51. Mounting base; 511. Comma doctor blade; 52. Baffle; 53. Drive cylinder; 5 4. Adjusting screw; 6. Front laminating assembly; 61. Front laminating air shaft; 62. Bottom roller; 63. Lifting block; 64. Pressing roller; 65. Lifting screw; 7. Drying assembly; 71. Oven; 8. UV curing assembly; 81. Curing box; 9. Air cooling assembly; 91. Air cooling frame; 92. Cooling fan; 10. Rear laminating assembly; 101. Rear laminating air shaft; 102. Rear roller; 103. Sliding block; 104. Pressure roller; 105. Sliding screw; 11. Rewinding assembly; 111. Rewinding rack; 112. Rewinding air shaft; 113. Rewinding motor; 12. Substrate; Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] This utility model discloses a three-in-one coating machine with a scraper, slit, and micro-concave design, such as... Figure 1-15As shown, the assembly includes a frame 1, on which an unwinding assembly 2 is mounted. Specifically, the unwinding assembly 2 includes an unwinding rack 21 mounted on the frame 1, an unwinding air shaft 22 mounted horizontally on the unwinding rack 21, and an unwinding motor 23 mounted on the unwinding rack 21. One end of the unwinding air shaft 22 is rotatably supported on the side wall of the unwinding rack 21. A roll of substrate 12 is coaxially fixedly sleeved on the unwinding air shaft 22. The output shaft of the unwinding motor 23 is connected to a reduction gearbox, and the output end of the reduction gearbox is connected to an unwinding drive synchronous pulley. The unwinding air shaft 22 is connected to the unwinding rack 21. One end of the feeding device is coaxially fixed with a feeding driven synchronous wheel. A feeding synchronous belt connects the feeding driving synchronous wheel and the feeding driven synchronous wheel. When the feeding motor 23 is working, it drives the feeding air shaft 22 to rotate, and the substrate 12 roll on the feeding air shaft 22 conveys the substrate 12 out. In addition, a guide roller 24 is provided on the frame 1 along the width direction of the substrate 12. The end of the guide roller 24 is rotatably supported on the side wall of the frame 1. The substrate 12 is wound on the guide roller 24. After the substrate 12 is conveyed out, the guide roller 24 can guide the substrate 12.

[0036] In addition, a micro-gravure coating assembly 3 is provided on the frame 1. Specifically, the micro-gravure coating assembly 3 includes a micro-gravure frame 31 that is slidably disposed on the frame 1 in the vertical direction, a glue tank 36 installed on the micro-gravure frame 31, and a micro-gravure roller 32 disposed on the micro-gravure frame 31 in the width direction of the substrate 12. The two ends of the micro-gravure roller 32 are rotatably supported on the side wall of the micro-gravure frame 31. A micro-gravure motor 33 is fixedly installed on the micro-gravure frame 31 in the direction parallel to the axial length of the micro-gravure roller 32. The output shaft of the micro-gravure motor 33 is coaxially fixedly sleeved with a micro-gravure driving synchronous pulley. One end of the micro-gravure roller 32 is coaxially fixedly sleeved with a micro-gravure driven synchronous pulley. A micro-gravure synchronous belt is connected between the micro-gravure driving synchronous pulley and the micro-gravure driven synchronous pulley. When the micro-gravure motor 33 is working, it drives the micro-gravure roller 32 to rotate through the micro-gravure synchronous belt. Meanwhile, two guide rollers 34 are arranged in the frame 1 along the axial length direction parallel to the micro-concave roller 32. The ends of the guide rollers 34 are rotatably supported on the side wall of the frame 1. The two guide rollers 34 are located on opposite sides of the micro-concave roller 32. The substrate 12 is wrapped around the two guide rollers 34 and covers and connects to the upper circumferential surface of the micro-concave roller 32, so that there is a wrap angle between the substrate 12 and the micro-concave roller 32. At the same time, the lower circumferential surface of the micro-concave roller 32 extends into the glue tank 36, where glue is placed. When the micro-concave motor 33 drives the micro-concave roller 32 to rotate, the micro-concave roller 32 picks up the glue in the glue tank 36 and then applies the glue to the surface of the substrate 12, thereby realizing the micro-concave coating of the substrate 12. In addition, a lifting cylinder 35 is fixedly installed on the frame 1 along the vertical direction. The piston rod of the lifting cylinder 35 is fixedly connected to the micro-concave frame 31. When it is necessary to adjust the wrap angle between the micro-concave roller 32 and the substrate 12, the piston rod of the lifting cylinder 35 extends or retracts, thereby driving the micro-concave frame 31 to rise and fall, thereby adjusting the wrap angle between the micro-concave roller 32 and the substrate 12.

[0037] In addition, a slot coating assembly 4 is provided on the frame 1. Specifically, the slot coating assembly 4 includes a back roller 41 disposed on the frame 1 along the width direction of the substrate 12, a slot frame 42 slidably disposed on the frame 1, and a slot coating head 43 fixedly installed on the slot frame 42. The adhesive end of the slot coating head 43 faces the back roller 41. The substrate 12 is wrapped around the back roller 41. The end of the back roller 41 is rotatably supported on the side wall of the frame 1. A rotary motor 411 is fixedly installed on the frame 1. The output end of the rotary motor 411 is fixedly connected to the end of the back roller 41. During coating, the rotary motor 411 drives the back roller 41 to rotate. The back roller 41 drives the substrate 12 to move, and the adhesive end of the slot coating head 43 flows out adhesive and coats the surface of the substrate 12, thereby realizing slot coating of the substrate 12. Additionally, a drive screw 44 is provided on the frame 1 along the axial length direction perpendicular to the back roller 41. The drive screw 44 is rotatably connected to the frame 1 and threadedly connected to the slit frame 42. A drive motor 45 is fixedly installed on the frame 1. A drive drive synchronous pulley is coaxially fixedly sleeved on the output shaft of the drive motor 45. A drive driven synchronous pulley is coaxially fixedly sleeved on one end of the screw. A drive synchronous belt is connected between the drive drive synchronous pulley and the drive driven synchronous pulley. When the drive motor 45 is working, it drives the drive screw 44 to rotate through the drive synchronous belt, thereby driving the slit coating head 43 to move closer to or away from the back roller 41. When slit coating is required, the drive motor 45 drives the coating end of the slit coating head 43 to abut against the surface of the substrate 12. When slit coating is not required, the drive motor 45 drives the slit coating head 43 away from the back roller 41.

[0038] Additionally, a comma-shaped doctor blade coating assembly 55 is provided on the frame 1. Specifically, the comma-shaped doctor blade coating assembly 55 includes a mounting base 51 slidably connected to the frame 1, a comma-shaped doctor blade 511 disposed on the mounting base 51, and a baffle 52 disposed on the frame 1. The end of the comma-shaped doctor blade 511 is rotatably supported on the side wall of the mounting base 51. The upper surface of the baffle 52 is used to place adhesive. The substrate 12 is wound around the back roller 41 and passes through the baffle 52 and the back roller 41. One side of the baffle 52 abuts against the substrate 12. On the surface, the substrate 12 passes between the comma-shaped doctor blade 511 and the back roller 41. The comma-shaped doctor blade 511 abuts against the surface of the substrate 12. When the substrate 12 is coated with a doctor blade, the rotating motor 411 drives the roller to rotate, and the roller moves the substrate 12. When the substrate 12 passes the baffle 52, the adhesive on the upper surface of the baffle 52 is coated onto the surface of the substrate 12. When the substrate 12 passes the comma-shaped doctor blade 511, the doctor blade 511 spreads the adhesive on the surface of the substrate 12 evenly, thereby achieving the doctor blade coating of the substrate 12. Additionally, a drive cylinder 53 is fixedly mounted on the frame 1 along the axial length direction perpendicular to the back roller 41. The piston rod of the drive cylinder 53 is connected to the mounting base 51. When the position of the comma doctor blade 511 needs to be adjusted, the piston rod of the drive cylinder 53 extends or retracts, driving the comma doctor blade 511 to move, thereby adjusting the position of the comma doctor blade 511. When doctor blade coating is not required, the drive cylinder 53 drives the comma doctor blade 511 away from the back roller 41. Furthermore, an adjusting screw 54 is provided on the frame 1 along the axial length direction perpendicular to the back roller 41. One end of the adjusting screw 54 is rotatably connected to the frame 1, and the adjusting screw 54 is threadedly connected to the baffle 52. The operator can adjust the position of the baffle 52 by rotating the screw. When doctor blade coating is not required, rotating the adjusting screw 54 moves the baffle 52 away from the back roller 41.

[0039] A pre-coating assembly 6 is provided on the frame 1. Specifically, the pre-coating assembly 6 includes a pre-coating air shaft 61 disposed on the frame 1 along the width direction of the substrate 12, a bottom roller 62 disposed on the frame 1, a lifting block 63 slidably disposed on the frame 1, and a pressing roller 64 disposed on the lifting block 63. One end of the pre-coating air shaft 61 is rotatably supported on the side wall of the frame 1, both ends of the bottom roller 62 are rotatably supported on the side wall of the frame 1, and the end of the pressing roller 64 is rotatably supported on the side wall of the lifting block 63. The pre-coating air shaft 61 is used to hold the pre-protective film. When the substrate 12 needs to be pre-coated after coating, the pre-protective film roll is released. The pre-protective film and the substrate 12 pass between the bottom roller 62 and the pressing roller 64. After the substrate 12 and the pre-protective film pass through the bottom roller 62 and the pressing roller 64, the bottom roller 62 and the pressing roller 64 press the substrate 12 and the pre-protective film together. In addition, a lifting screw 65 is threadedly connected to the frame 1. The lifting screw 65 is set in the vertical direction, and one end of the lifting screw 65 is rotatably connected to the lifting block 63. When the operator rotates the lifting screw 65, the lifting screw 65 drives the pressing roller 64 to move closer to or away from the bottom roller 62, thereby adjusting the position of the pressing roller 64.

[0040] In addition, a drying assembly 7 is provided on the frame 1. Specifically, the drying assembly 7 includes an oven 71 fixedly installed on the frame 1. One end of the oven 71 is provided with a feed port for feeding the substrate 12, and the other end of the oven 71 is provided with a discharge port for discharging the substrate 12. After the substrate 12 is coated, it enters the oven 71 through the feed port. The adhesive on the surface of the substrate 12 is dried in the oven 71. Then the substrate 12 moves out of the oven 71 through the discharge port.

[0041] Additionally, a UV curing assembly 8 is provided on the frame 1. Specifically, the UV curing assembly 8 includes a curing chamber 81 fixedly mounted on the frame 1 and a UV lamp installed inside the curing chamber 81. The substrate 12 passes through the curing chamber 81, and the UV lamp irradiates the coated surface of the substrate 12, thereby UV curing the adhesive on the surface of the substrate 12. Furthermore, a cooling assembly 9 is provided on the frame 1. Specifically, the cooling assembly 9 includes a cooling frame 91 fixedly mounted on the frame 1 and multiple cooling fans 92 fixedly mounted on the cooling frame 91. The exhaust ends of the cooling fans 92 face the surface of the substrate 12. When air cooling of the substrate 12 is required, the cooling fans 92 operate to blow air onto the surface of the substrate 12, thereby cooling the coated substrate 12. Depending on the adhesive applied, the drying section can use a heating drying method (i.e., oven 71), a UV curing method, or an air cooling method.

[0042] In addition, a post-coating assembly 10 is provided on the frame 1. Specifically, the post-coating assembly 10 includes a post-coating air shaft 101 disposed on the frame 1 along the width direction of the substrate 12, a rear roller 102 disposed on the frame 1, a sliding block 103 slidably disposed on the frame 1, and a pressure roller 104 disposed on the sliding block 103. One end of the post-coating air shaft 101 is rotatably supported on the side wall of the frame 1, both ends of the rear roller 102 are rotatably supported on the side wall of the frame 1, and the end of the pressure roller 104 is rotatably supported on the side wall of the sliding block 103. The post-coating air shaft 101 is used to place the post-protective film. When the adhesive on the surface of the substrate 12 needs to be coated after drying, the protective film roll is released. The protective film and the substrate 12 are passed between the rear roller 102 and the pressure roller 104. After passing through the rear roller 102 and the pressure roller 104, the substrate 12 and the protective film are pressed together by the rear roller 102 and the pressure roller 104. In addition, a sliding screw 105 is threaded onto the frame 1. The sliding screw 105 is set along the axial length direction perpendicular to the rear roller 102. One end of the sliding screw 105 is rotatably connected to the sliding block 103. When the operator rotates the sliding screw 105, the sliding screw 105 drives the pressure roller 104 to move closer to or away from the rear roller 102, thereby adjusting the position of the pressure roller 104.

[0043] In addition, a winding assembly 11 is provided on the frame 1. Specifically, the winding assembly 11 includes a take-up rack 111 provided on the frame 1, a take-up air shaft 112 provided horizontally on the take-up rack 111, and a take-up motor 113 provided on the take-up rack 111. One end of the take-up air shaft 112 is rotatably supported on the side wall of the take-up rack 111. After coating, the substrate 12 is wound and sleeved on the take-up air shaft 112. The output shaft of the take-up motor 113 is connected to a gearbox, and the output end of the gearbox is connected to a take-up drive synchronous pulley. A take-up driven synchronous pulley is coaxially fixedly sleeved on one end of the take-up air shaft 112 connected to the take-up rack 111. A take-up synchronous belt is connected between the take-up drive synchronous pulley and the take-up driven synchronous pulley. When the take-up motor 113 works, it drives the take-up air shaft 112 to rotate, and the take-up air shaft 112 winds up and stores the substrate 12.

[0044] The implementation principle of this utility model embodiment of a doctor blade, slit, and micro-concave three-in-one coating machine is as follows: When coating the substrate 12, the feeding motor 23 operates to release the substrate 12. When micro-concave coating is required on the substrate 12, the substrate 12 is wound around the guide roller 34 and the micro-concave roller 32. The micro-concave motor 33 operates to drive the micro-concave roller 32 to rotate, and the micro-concave roller 32 applies the adhesive in the glue tank 36 to the surface of the substrate 12. When slit coating is required, the substrate 12 is wound around the back roller 41, and the glue-applying end of the slit coating head 43 abuts against the surface of the substrate 12. The rotating motor 411 operates to drive the back roller 41 to rotate, and then the slit coating head 43 dispenses adhesive to apply the adhesive to the surface of the substrate 12. When doctor blade coating is required... The substrate 12 is wound onto the back roller 41. The rotating motor 411 drives the back roller 41 to rotate, and the adhesive on the upper surface of the baffle 52 is applied to the surface of the substrate 12. Then, the comma-shaped scraper 511 spreads the adhesive evenly. After the substrate 12 is coated, if a pre-coating is required, a pre-protective film is applied to the surface of the substrate 12 before it enters the drying section. Depending on the coated slurry, the drying section can use a heating drying method, i.e., the oven 71 method, or a UV curing method, or an air-cooling method. A post-coating can also be selected according to the requirements. After drying and coating, the take-up motor 113 operates to wind and store the substrate 12 onto the take-up air expansion shaft 112. Thus, one machine can achieve multiple coating methods for the substrate 12, reducing costs.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A three-in-one coating machine for slit micro-concave coating with scraper, characterized in that: The system includes a frame (1), on which are provided an unwinding assembly (2), a gravure coating assembly (3), a slot coating assembly (4), a comma blade coating assembly (5), a pre-coating assembly (6), a drying assembly (7), a UV curing assembly (8), an air cooling assembly (9), a post-coating assembly (10), and a winding assembly (11). The unwinding assembly (2) is used to place and transport the substrate (12) roll. The gravure coating assembly (3), the slot coating assembly (4), and the slot coating assembly (4) are used to coat the substrate (12). The pre-coating assembly (6) is used to pre-coat the substrate (12). The drying assembly (7) is used to dry the coated substrate (12). The post-coating assembly (10) is used to post-coat the substrate (12). The winding assembly (11) is used to store the substrate (12).

2. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The unwinding assembly (2) includes an unwinding rack (21) mounted on the frame (1), an unwinding air shaft (22) rotatably mounted on the unwinding rack (21) along the width direction of the substrate (12), and an unwinding motor (23) mounted on the unwinding rack (21). The substrate (12) roll is sleeved on the unwinding air shaft (22). The unwinding motor (23) is used to drive the unwinding air shaft (22) to rotate. A guide roller (24) is mounted on the frame (1), and the substrate (12) is wound around the guide roller (24).

3. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The micro-gravure coating assembly (3) includes a micro-gravure frame (31) disposed on the frame (1), a glue tank (36) disposed on the micro-gravure frame (31), and a micro-gravure roller (32) rotatably disposed on the micro-gravure frame (31) along the width direction of the substrate (12). A micro-gravure motor (33) is disposed on the micro-gravure frame (31) for driving the micro-gravure roller (32) to rotate. Two guide rollers are rotatably disposed on the frame (1). 34), the two guide rollers (34) are respectively located on opposite sides of the micro-concave roller (32), the substrate (12) is wrapped around the two guide rollers (34), the substrate (12) covers and is connected to the upper circumferential surface of the micro-concave roller (32), the lower circumferential surface of the micro-concave roller (32) extends into the glue groove (36), the frame (1) is provided with a lifting cylinder (35), and the piston rod of the lifting cylinder (35) is connected to the micro-concave frame (31).

4. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The slit coating assembly (4) includes a back roller (41) rotatably mounted on the frame (1) along the width direction of the substrate (12), a slit frame (42) slidably mounted on the frame (1), and a slit coating head (43) mounted on the slit frame (42). The coating end of the slit coating head (43) faces the back roller (41). The substrate (12) is wrapped around the back roller (41). A drive screw (44) is rotatably mounted on the frame (1). The drive screw (44) is threaded to the slit frame (42). A drive motor (45) is mounted on the frame (1) to drive the drive screw (44) to rotate. The drive screw (44) drives the slit coating head (43) to move closer to or away from the back roller (41). A rotary motor (411) is mounted on the frame (1) to drive the back roller (41) to rotate.

5. The three-in-one coating machine for slit micro-concave coating according to claim 4, characterized in that: The comma-shaped doctor blade coating assembly (5) includes a mounting base (51) slidably connected to the frame (1), a comma-shaped doctor blade (511) rotatably mounted on the mounting base (51), and a baffle (52) mounted on the frame (1). The upper surface of the baffle (52) is used to place adhesive. A substrate (12) passes between the baffle (52) and the back roller (41), and the substrate (12) passes between the comma-shaped doctor blade (511) and the back roller (41). Between 1), the frame (1) is provided with a drive cylinder (53) that drives the comma scraper (511) to approach or move away from the back roller (41). The piston rod of the drive cylinder (53) is connected to the mounting base (51). An adjusting screw (54) is rotatably provided on the frame (1). The adjusting screw (54) is threadedly connected to the baffle (52). The adjusting screw (54) drives the baffle (52) to approach or move away from the back roller (41).

6. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The front coating assembly (6) includes a front coating air shaft (61) rotatably mounted on the frame (1) along the width direction of the substrate (12), a bottom roller (62) rotatably mounted on the frame (1), a lifting block (63) slidably mounted on the frame (1), and a pressing roller (64) rotatably mounted on the lifting block (63). A lifting screw (65) is threadedly connected to the frame (1). One end of the lifting screw (65) is rotatably connected to the lifting block (63). The lifting screw (65) is used to drive the pressing roller (64) to move closer to or away from the bottom roller (62). The front coating air shaft (61) is used to place the front protective film. The substrate (12) and the front protective film are passed between the bottom roller (62) and the pressing roller (64).

7. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The drying assembly (7) includes an oven (71) disposed on the frame (1). One end of the oven (71) is provided with a feed port for feeding the substrate (12), and the other end of the oven (71) is provided with a discharge port for discharging the substrate (12).

8. The three-in-one coating machine for slit micro-concave coating according to claim 6, characterized in that: The post-coating assembly (10) includes a post-coating air shaft (101) disposed on the frame (1), a rear roller (102) rotatably disposed on the frame (1), a sliding block (103) slidably disposed on the frame (1), and a pressure roller (104) rotatably disposed on the lifting block (63). A sliding screw (105) is threadedly connected to the frame (1). One end of the sliding screw (105) is rotatably connected to the sliding block (103). The sliding screw (105) is used to drive the pressure roller (104) to move closer to or away from the rear roller (102). The post-coating air shaft (101) is used to place the post-protective film. The substrate (12) and the post-protective film are inserted between the rear roller (102) and the pressure roller (104).

9. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The winding assembly (11) includes a winding rack (111) mounted on the frame (1), a winding air shaft (112) rotatably mounted on the winding rack (111) along the width direction of the substrate (12), and a winding motor (113) mounted on the winding rack (111). The substrate (12) roll is sleeved on the winding air shaft (112), and the winding motor (113) is used to drive the winding air shaft (112) to rotate.

10. The three-in-one coating machine for slit micro-concave coating according to claim 1, characterized in that: The UV curing assembly (8) includes a curing chamber (81) disposed on the frame (1) and a UV lamp disposed in the curing chamber (81). The substrate (12) passes through the curing chamber (81) and the UV lamp irradiates the coated surface of the substrate (12). The air cooling assembly (9) includes an air cooling frame (91) disposed on the frame (1) and a plurality of cooling fans (92) disposed on the air cooling frame (91). The exhaust end of the cooling fan (92) faces the surface of the substrate (12).

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