Coating device of coating machine with deviation rectifying function

Abstract

The utility model belongs to the technical field of coating machines, and particularly relates to a coating device of a coating machine with a deviation rectifying function, which comprises an unwinding mechanism, a coating mechanism, a heating and cooling mechanism and a winding mechanism, the coating mechanism is used for coating a base material; the heating and cooling mechanism is used for heating and cooling the base material; the winding mechanism is used for winding the base material; wherein the coating mechanism comprises a coating roller, a first guide roller, a second guide roller, a fixing support, a first rolling mechanism, a second rolling mechanism and a third rolling mechanism, the coating roller is driven by a positive and negative rotation motor to rotate, and the first rolling mechanism and the second rolling mechanism are used for increasing the wrap angle of a base material on the coating roller during reverse coating; and the third rolling mechanism is used for pressing the base material on the coating roller during positive coating. The device not only has the functions of sectional tension control and sectional deviation correction, but also can select forward coating or reverse coating as required, so that the selectivity of a coating mode is increased, and the surface of a coated base material is fine and smooth.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating machines, and in particular relates to a coating device of a coating machine with a deviation correction function. Background Art

[0002] Coating machine is a production equipment used to coat the surface of substrates such as film, paper and PE film. Usually, the film, paper and PE film are first made into rolls, and then unrolled by rollers. The coating process is carried out during the unrolling process, mainly applying a layer of glue, coating or ink with specific functions on the surface of the substrate, and finally drying and rolling it up.

[0003] The existing coating machine, such as the disclosed invention patent, publication number CN102921602B, discloses a micro-concave coating machine, including an unwinding device, a micro-concave coating head, a baking and cooling box and a winding device. The diaphragm comes out of the unwinding device, is coated with slurry by the micro-concave coating head, and then is baked and cooled before entering the winding device for winding. The flattening system of the micro-concave coating machine includes a first flattening roller and a second flattening roller located on both sides of the micro-concave ceramic anilox roller of the micro-concave coating head, and a two-side edge of the diaphragm located in the baking and cooling box is close to the bottom. The vacuum flattening device comprises a negative pressure source device connected to a negative pressure source and an adsorbent provided with a plurality of adsorption holes. The adsorbent moves relative to the negative pressure source device, and is selectively controlled by the negative pressure source device to communicate some of the adsorption holes on the adsorbent with the outside world. The negative pressure source device is a cylinder having a first end face and a second end face, and rows of hoses communicating with the negative pressure source are provided on the outer surface of the negative pressure source device. The negative pressure source device is rotated to make the hoses contact with the film respectively, and are adsorbed by the hoses contacting with the film. Although the coating machine in this scheme has the functions of deviation correction and segmented control, the coating head of the coating machine can only provide a coating method in one direction, and cannot realize forward coating and reverse coating as needed. The coating selectivity is small and the use is not flexible enough.

[0004] Therefore, improvement is urgently needed. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the utility model provides a coating device of a coating machine with a deviation correction function, including an unwinding mechanism, a coating mechanism, a heating and cooling mechanism and a winding mechanism, the unwinding mechanism including an unwinding roller and a first chassis, a substrate is wound around the unwinding roller, the first chassis is arranged on the side of the unwinding roller, and the unwinding mechanism is used to unwind the substrate; the coating mechanism is arranged on the top of the first chassis, and is used to coat the unwound substrate; the heating and cooling mechanism is arranged on the rear side of the unwinding mechanism, and is used to heat and cool the coated substrate; the winding mechanism is arranged on the heating and cooling mechanism The rear side of the coating roller is used to reel up the cooled substrate; wherein the unwinding mechanism, the heating and cooling mechanism and the rewinding mechanism respectively adopt the unwinding device, the baking and cooling box and the rewinding device in the micro-dimpled coating machine disclosed in the publication number CN102921602B; the coating mechanism is located in the first chassis, and the coating mechanism includes a coating roller, a first guide roller and a second guide roller located on the upper and lower sides of the coating roller, and a fixed bracket located on the rear side of the coating roller, a first rolling mechanism, a second rolling mechanism and a third rolling mechanism, the coating roller is driven to rotate by a forward and reverse motor, and the fixed bracket is connected to the first machine The inner wall of the box is fixedly connected, the first rolling mechanism and the second rolling mechanism are arranged opposite to each other up and down, and the first rolling mechanism is located between the first guide roller and the coating roller, and the second rolling mechanism is located between the coating roller and the second guide roller. The first rolling mechanism and the second rolling mechanism each include two synchronous cylinders fixedly connected to the fixed bracket, and a first pressing roller arranged at the end of the piston rod of the two synchronous cylinders. The third rolling mechanism is located between the first rolling mechanism and the second rolling mechanism, and the third rolling mechanism includes a bottom plate fixedly connected to the fixed bracket, a mounting plate fixedly connected to the bottom plate, and a sliding plate arranged on the bottom plate. Rails, threaded rods, guide rods, two slides, a servo motor fixedly arranged on the rear side of the fixed bracket, and a second pressure roller corresponding to the coating roller, the threaded rod is rotatably connected between the mounting plate and the fixed bracket, the guide rod is parallel to the threaded rod and fixedly connected between the mounting plate and the fixed bracket, the threaded rod and the guide rod respectively pass through the two slides, and one of the slides is slidably connected to the threaded rod through a nut pair of the threaded rod, the bottoms of the two slides are respectively slidably connected to the slide rails, the tops of the two slides are fixedly connected with connecting plates, and the connecting plates are rotatably connected to the two ends of the second pressure roller through connecting rods.

[0006] Optionally, the coating roller is a micro-concave ceramic anilox roller.

[0007] Specifically, compared with the traditional wire rod coating roller, the micro-concave ceramic anilox roller can avoid the formation of wrinkles on the surface of the substrate during coating, making the surface of the substrate delicate and smooth.

[0008] Optionally, an unwinding correction device is provided below the unwinding roller, a process correction device is provided at the bottom of the first chassis, the winding mechanism is provided with a winding roller and a second chassis, and a winding correction device is provided below the winding roller.

[0009] Specifically, the unwinding correction device is used to make preliminary adjustments to the substrate direction during unwinding, the process correction device is used to adjust the substrate direction during the unwinding process, and the rewinding correction device is used to adjust the substrate direction before rewinding.

[0010] Optionally, the second chassis is arranged on the side of the winding roller, and a driving roller and a tension-breaking roller are arranged on the top of the second chassis.

[0011] Optionally, the tension of the substrate is controlled in sections, with the first section from the unwinding roller to the second guide roller, the second section from the first guide roller to the tension break roller after the heating and cooling mechanism, and the third section from the tension break roller to the winding roller.

[0012] Specifically, a tension detection device is provided in each section. The first tension detection device is used to detect the tension of the first section of the substrate, and control the unwinding speed of the unwinding roller according to the detection result; the second tension detection device is used to detect the tension of the second substrate, and control the rotation speed of the active roller according to the detection result; the third tension detection device is used to detect the tension of the third section of the substrate, and control the winding speed of the winding roller according to the detection result. The diaphragm segmented tension control is utilized, and different diaphragm tensions are used in different sections to achieve better flattening effect.

[0013] The utility model also includes other components that enable the coating device of a coating machine with a deviation correction function to be used normally, which are all conventional technical means in the field. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the field, such as synchronous cylinders, servo motors, and forward and reverse motors.

[0014] The working principle of the utility model is that in the process of coating the substrate by the coating machine, when forward coating is required, the output shaft of the servo motor is controlled to rotate forward, driving the threaded rod to rotate, so that the slide seat moves toward the direction of the mounting plate, and drives the connecting plate and the second pressure roller to move toward the direction of the coating roller until the second pressure roller presses the substrate on the coating roller, and at the same time controls the forward and reverse motors to drive the coating roller to rotate counterclockwise to coat the substrate in the forward direction; when reverse coating is required, the output of the servo motor is controlled to reverse, so that the second pressure roller is away from the coating roller, and then the two synchronous cylinders of the first roller pressing mechanism and the second roller pressing mechanism are controlled to stretch the piston rod at the same time, so that the first pressure roller is against the surface of the substrate, and a certain wrap angle is formed between the substrate and the coating roller, and at the same time controls the forward and reverse motors to drive the coating roller to rotate clockwise, so that the substrate is reversely coated to reduce wrinkles on the surface of the substrate.

[0015] The beneficial effect of the utility model is that, by improving the coating structure of the existing coating machine, it is possible to select forward coating or reverse coating according to needs, thereby increasing the selectivity of the coating method and making it more flexible to use; the traditional wire rod coating roller is replaced with a micro-concave ceramic anilox roller, which can avoid wrinkles on the surface of the substrate during coating, making the surface of the substrate delicate and smooth; in addition, the diaphragm segmented tension control is utilized, and different diaphragm tensions are used in different segments, so that the flattening effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

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

[0018] Figure 2 It is a structural schematic diagram of the coating mechanism of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the third rolling assembly of the utility model.

[0020] Figure 4 It is a schematic diagram of the coating mechanism of the present invention during coating.

[0021] Figure 5 It is a schematic diagram of the coating mechanism of the utility model during reverse coating.

[0022] In the figure: 1. unwinding mechanism, 2. coating mechanism, 3. heating and cooling mechanism, 4. winding mechanism, 5. first chassis, 6. coating roller, 7. first guide roller, 8. second guide roller, 9. fixed bracket, 10. first rolling mechanism, 11. second rolling mechanism, 12. third rolling mechanism, 13. synchronous cylinder, 14. first pressing roller, 15. bottom plate, 16. mounting plate, 17. slide rail, 18. threaded rod, 19. guide rod, 20. slide seat, 21. servo motor, 22. second pressing roller, 23. connecting plate, 24. connecting rod, 25. unwinding correction device, 26. process correction device, 27. winding correction device, 28. second chassis, 29. active roller, 30. tension isolation roller, 31. first tension detection device, 32. second tension detection device, 33. third tension detection device, 34. substrate. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0024] Example

[0025] like Figure 1-5As shown, the embodiment of the utility model provides a coating device of a coating machine with a deviation correction function, including an unwinding mechanism 1, a coating mechanism 2, a heating and cooling mechanism 3 and a winding mechanism 4, the unwinding mechanism 1 includes an unwinding roller and a first chassis 5, a substrate 34 is wound on the unwinding roller, the first chassis 5 is arranged on the side of the unwinding roller, the unwinding mechanism 1 is used to unwind the substrate 34; the coating mechanism 2 is arranged on the top of the first chassis 5, and is used to coat the unwound substrate 34; the heating and cooling mechanism 3 is arranged on the rear side of the unwinding mechanism 1, and is used to heat and cool the coated substrate 34; the winding mechanism 4 is arranged on the rear side of the heating and cooling mechanism 3, and is used to wind up the cooled substrate 34 ; The unwinding mechanism 1, the heating and cooling mechanism 3 and the winding mechanism 4 respectively adopt the unwinding device, the baking and cooling box and the winding device in the micro-dimpled coating machine disclosed in the publication number CN102921602B; the coating mechanism 2 is located in the first chassis 5, and the coating mechanism 2 includes a coating roller 6, a first guide roller 7 and a second guide roller 8 located on the upper and lower sides of the coating roller 6, and a fixed bracket 9, a first rolling mechanism 10, a second rolling mechanism 11 and a third rolling mechanism 12 located on the rear side of the coating roller 6. The coating roller 6 is driven to rotate by a forward and reverse motor, and the fixed bracket 9 is fixedly connected to the inner wall of the first chassis 5. The first rolling mechanism 10 and the second rolling mechanism 11 are connected to the upper and lower sides of the coating roller 6. The first rolling mechanism 10 is arranged opposite to each other, and the first rolling mechanism 10 is located between the first guide roller 7 and the coating roller 6, and the second rolling mechanism 11 is located between the coating roller 6 and the second guide roller 8. The first rolling mechanism 10 and the second rolling mechanism 11 both include two synchronous cylinders 13 fixedly connected to the fixed bracket 9, and a first pressing roller 14 arranged at the end of the piston rod of the two synchronous cylinders 13. The third rolling mechanism 12 is located between the first rolling mechanism 10 and the second rolling mechanism 11. The third rolling mechanism 12 includes a bottom plate 15 fixedly connected to the fixed bracket 9, a mounting plate 16 fixedly connected to the bottom plate 15, a slide rail 17 arranged on the bottom plate 15, a threaded rod 18, a guide rod 19, and two slide seats. 20, a servo motor 21 fixedly arranged on the rear side of the fixed bracket 9, and a second pressure roller 22 corresponding to the coating roller 6, a threaded rod 18 rotatably connected between the mounting plate 16 and the fixed bracket 9, a guide rod 19 is parallel to the threaded rod 18 and fixedly connected between the mounting plate 16 and the fixed bracket 9, the threaded rod 18 and the guide rod 19 respectively pass through two slides 20, and one of the slides 20 is slidably connected to the threaded rod 18 through the nut pair of the threaded rod 18, the bottoms of the two slides 20 are respectively slidably connected to the slide rails 17, the tops of the two slides 20 are fixedly connected with a connecting plate 23, and the connecting plate 23 is rotatably connected to the two ends of the second pressure roller 22 through a connecting rod 24.

[0026] The coating roller 6 is a micro-concave ceramic anilox roller. Compared with the traditional wire rod coating roller, the micro-concave ceramic anilox roller can avoid wrinkles on the surface of the substrate 34 during coating, making the surface of the substrate 34 delicate and smooth.

[0027] In addition, an unwinding correction device 25 is provided below the unwinding roller, and the unwinding correction device 25 is used to make a preliminary adjustment to the direction of the substrate 34 during unwinding; a process correction device 26 is provided at the bottom of the first chassis 5, and the process correction device 26 is used to adjust the direction of the substrate 34 during the unwinding process; the winding mechanism 4 is provided with a winding roller and a second chassis 28, and a winding correction device 27 is provided below the winding roller, and the winding correction device 27 is used to adjust the direction of the substrate 34 before winding. The second chassis 28 is provided on the side of the winding roller, and a driving roller 29 and a tension isolation roller 30 are provided at the top of the second chassis 28. The tension of the substrate 34 is controlled in sections. The first section is from the unwinding roller to the second guide roller 8, the second section is from the first guide roller 7 to the tension isolation roller 30 after the heating and cooling mechanism 3, and the third section is from the tension isolation roller 30 to the winding roller. A tension detection device is provided in each section. The first tension detection device 31 is used to detect the tension of the first section of the substrate 34, and control the unwinding speed of the unwinding roller according to the detection result; the second tension detection device 32 is used to detect the tension of the second substrate 34, and control the rotation speed of the active roller 29 according to the detection result; the third tension detection device 33 is used to detect the tension of the third section of the substrate 34, and control the winding speed of the winding roller according to the detection result. The diaphragm segmented tension control is used to adopt different diaphragm tensions in different sections to achieve better flattening effect.

[0028] The working principle of the utility model is that, in the process of coating the substrate 34 by the coating machine, when forward coating is required, the output shaft of the servo motor 21 is controlled to rotate forward, driving the threaded rod 18 to rotate, so that the slide 20 moves toward the direction of the mounting plate 16, and drives the connecting plate 23 and the second pressing roller 22 to move toward the direction of the coating roller 6 until the second pressing roller 22 presses the substrate 34 on the coating roller 6, and at the same time controls the forward and reverse motors to drive the coating roller 6 to rotate counterclockwise, so that the substrate 34 is forward coated; when reverse coating is required, the output of the servo motor 21 is controlled to reverse, so that the second pressing roller 22 is away from the coating roller 6, and then the two synchronous cylinders 13 of the first rolling mechanism 10 and the second rolling mechanism 11 are controlled to stretch the piston rod at the same time, so that the first pressing roller 14 is against the surface of the substrate 34, and a certain wrap angle is formed between the substrate 34 and the coating roller 6, and at the same time controls the forward and reverse motors to drive the coating roller 6 to rotate clockwise, so that the substrate 34 is reversely coated, and wrinkles on the surface of the substrate 34 are reduced.

[0029] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A coating device of a coating machine with a deviation correction function, comprising an unwinding mechanism, a coating mechanism, a heating and cooling mechanism and a winding mechanism, the unwinding mechanism comprising an unwinding roller and a first chassis, a substrate is wound around the unwinding roller, the first chassis is arranged on the side of the unwinding roller, the unwinding mechanism is used to unwind the substrate; the coating mechanism is arranged on the top of the first chassis, and is used to coat the unwound substrate; the heating and cooling mechanism is arranged at the rear side of the unwinding mechanism, and is used to heat and cool the coated substrate; the winding mechanism is arranged at the rear side of the heating and cooling mechanism, and is used to wind up the cooled substrate; the characteristics are: The coating mechanism is located in the first chassis, and the coating mechanism includes a coating roller, a first guide roller and a second guide roller located on the upper and lower sides of the coating roller, and a fixed bracket located at the rear side of the coating roller, a first rolling mechanism, a second rolling mechanism and a third rolling mechanism, the coating roller is driven to rotate by a forward and reverse motor, the fixed bracket is fixedly connected to the inner wall of the first chassis, the first rolling mechanism and the second rolling mechanism are arranged opposite to each other up and down, and the first rolling mechanism is located between the first guide roller and the coating roller, and the second rolling mechanism is located between the coating roller and the second guide roller. The first rolling mechanism and the second rolling mechanism each include two synchronous cylinders fixedly connected to the fixed bracket, and a first pressing roller arranged at the end of the piston rod of the two synchronous cylinders, and the third rolling mechanism is located at the first roller pressing mechanism The third rolling mechanism comprises a bottom plate fixedly connected to the fixed bracket, a mounting plate fixedly connected to the bottom plate, a slide rail arranged on the bottom plate, a threaded rod, a guide rod, two slide seats, a servo motor fixedly arranged on the rear side of the fixed bracket, and a second pressing roller corresponding to the coating roller, the threaded rod is rotatably connected between the mounting plate and the fixed bracket, the guide rod is parallel to the threaded rod and fixedly connected between the mounting plate and the fixed bracket, the threaded rod and the guide rod respectively pass through the two slide seats, and one of the slide seats is slidably connected to the threaded rod through a nut pair of the threaded rod, the bottoms of the two slide seats are respectively slidably connected to the slide rails, the tops of the two slide seats are fixedly connected with connecting plates, and the connecting plates are rotatably connected to the two ends of the second pressing roller through the connecting rod.

2. The coating device of the coating machine with a deviation correction function according to claim 1 is characterized in that: The coating roller adopts a micro-concave ceramic anilox roller.

3. The coating device of the coating machine with a deviation correction function according to claim 1, characterized in that: An unwinding correction device is arranged below the unwinding roller, a process correction device is arranged at the bottom of the first chassis, the winding mechanism is provided with a winding roller and a second chassis, and a winding correction device is arranged below the winding roller.

4. The coating device of the coating machine with a deviation correction function according to claim 3 is characterized in that: The second machine box is arranged on the side of the winding roller, and the top of the second machine box is provided with a driving roller and a tension isolation roller.

5. The coating device of the coating machine with a deviation correction function according to claim 4, characterized in that: The tension of the substrate is controlled in sections. The first section is from the unwinding roller to the second guide roller, the second section is from the first guide roller to the tension-breaking roller after the heating and cooling mechanism, and the third section is from the tension-breaking roller to the winding roller.

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