Aluminum foil coating apparatus

Abstract

The utility model provides a kind of aluminium foil coating device.The utility model includes first coating roller, first top roller, second coating roller and second top roller, first coating roller is adhered with slurry, and one side of aluminium foil tape is attached to first coating roller and passes through first coating roller;First top roller is provided with two groups and respectively coincides with the outer edge of aluminium foil tape, and first top roller is located the other side of aluminium foil tape and is abutted with first coating roller;Second coating roller is adhered with slurry, and the other side of aluminium foil tape is attached to second coating roller and passes through second coating roller;Second top roller is provided with two groups and respectively coincides with the outer edge of aluminium foil tape, and second top roller is located the other side of aluminium foil tape and is arranged on the upstream side of second coating roller.The utility model is abutted with first top roller and first coating roller and acts on the outer edge of aluminium foil tape, avoids track aluminium foil tape edge lifting, guarantees the uniformity of first coating roller side aluminium foil coating layer.Second top roller improves the tension of aluminium foil tape entering first coating roller, to eliminate the edge lifting situation of aluminium foil tape, guarantee the uniformity of second coating roller side aluminium foil coating layer.

Description

Technical Field

[0001] This utility model relates to the field of aluminum foil processing, and in particular to an aluminum foil coating device. Background Technology

[0002] In existing technologies, heat exchanger fins are generally made of aluminum foil. To improve the corrosion resistance of the fins, anti-corrosion treatment is required, such as coating the fin surface with water-based paint or graphene. During the coating process, the aluminum foil strip fails to form a completely uniform dynamic contact with the coating roller surface, resulting in unbalanced edge stress and upward curling. The curled areas lose contact with the roller surface, leading to uncoated areas, while adjacent areas show strip-like thickening defects due to slurry accumulation. Therefore, it is necessary to provide an aluminum foil coating apparatus to overcome the aforementioned defects. Utility Model Content

[0003] The purpose of this invention is to provide an aluminum foil coating device.

[0004] According to one aspect of the present invention, an aluminum foil coating apparatus is provided, comprising: a conveying mechanism that conveys an aluminum foil strip at a predetermined speed, with the direction of travel of the aluminum foil strip as a reference; a first coating mechanism located on one side of the aluminum foil strip, the first coating mechanism including a first coating roller, the first coating roller being coated with a slurry, one side of the aluminum foil strip being adhered to the first coating roller and passing through the first coating mechanism; a first top roller, the first top roller having two sets respectively coinciding with the outer edge of the aluminum foil strip, the first top roller being located on the other side of the aluminum foil strip and abutting against the first coating roller; a second coating mechanism located on the other side of the aluminum foil strip, the second coating mechanism including a second coating roller, the second coating roller being coated with a slurry, the other side of the aluminum foil strip being adhered to the second coating roller and passing through the second coating mechanism; and a second top roller, the second top roller having two sets respectively coinciding with the outer edge of the aluminum foil strip, the second top roller being located on the other side of the aluminum foil strip and adjacent to the second coating roller upstream.

[0005] Preferably, the first coating mechanism further includes a first material trough and a first material roller, wherein the first material roller is partially immersed in the slurry in the first material trough and is attached to the first coating roller.

[0006] Preferably, the outer peripheral surface of the first coating roller is provided with a rubber layer, and a mesh structure is provided on the rubber layer.

[0007] Preferably, the first coating roller is controlled by a first motor, the first conveyor roller is controlled by a third motor, and the first conveyor roller and the first coating roller rotate in opposite directions.

[0008] Preferably, a first lifting platform is provided below the first coating mechanism, which is suitable for adjusting the height of the first coating mechanism; a first tensioning device is provided on the other side of the first material conveyor roller, which is suitable for adjusting the gap between the first material conveyor roller and the first coating roller.

[0009] Preferably, the second coating mechanism further includes: a second material trough and a second material roller, wherein the second material roller is partially immersed in the slurry in the second material trough and is attached to the second coating roller.

[0010] Preferably, the outer peripheral surface of the second coating roller is provided with a rubber layer, and a mesh structure is provided on the rubber layer.

[0011] Preferably, the second coating roller is controlled by a second motor, the second conveyor roller is controlled by a fourth motor, and the rotation directions of the second conveyor roller and the second coating roller are opposite.

[0012] Preferably, a second lifting platform is provided below the second coating mechanism, which is suitable for adjusting the height of the second coating mechanism; a second tensioning device is provided on the other side of the second conveyor roller, which is suitable for adjusting the gap between the second conveyor roller and the second coating roller.

[0013] Preferably, a guide roller is provided between the first coating roller and the second coating roller, and the guide roller is controlled by an angle adjustment device.

[0014] Compared with the prior art, the aluminum foil coating apparatus provided by this utility model has the following beneficial effects: This utility model uses a first top roller that abuts against the first coating roller and acts on the outer edge of the aluminum foil strip, preventing the aluminum foil strip from curling up and ensuring the uniformity of the aluminum foil coating on the first coating roller side. The second top roller increases the tension of the aluminum foil strip as it enters the first coating roller, thereby eliminating edge curling and ensuring the uniformity of the aluminum foil coating on the second coating roller side, thus guaranteeing the coating quality of the aluminum foil. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 This is a schematic diagram of the coating device in this utility model;

[0017] Figure 2 This is a schematic diagram showing the structural distribution of the first coating mechanism and the second coating mechanism in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first coating roller and the first top roller in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the second coating roller and the second top roller in this utility model;

[0020] Figure 5 This is a schematic diagram of the first coating mechanism in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First coating mechanism; 11. First coating roller; 111. Rubber layer; 112. Mesh structure; 12. First material trough; 13. First conveyor roller; 14. First lifting platform; 141. First cylinder; 15. First tensioning device; 151. First bolt; 16. First motor; 17. Third motor;

[0023] 2. First top roller; 21. First telescopic component;

[0024] 3. Second coating mechanism; 31. Second coating roller; 311. Rubber layer; 312. Mesh structure; 32. Second material trough; 33. Second conveyor roller; 34. Second lifting platform; 341. Second cylinder; 35. Second tensioning device; 351. Second bolt; 36. Second motor; 37. Fourth motor;

[0025] 4. Second top roller; 41. Second telescopic component;

[0026] 5. Guide roller; 51. Mounting base; 52. Third cylinder;

[0027] 6a, 6b, guide rollers;

[0028] A. Aluminum foil strip. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0031] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] See Figures 1 to 5 This embodiment discloses an aluminum foil coating device, which includes: a conveying mechanism, a first coating mechanism 1, a first top roller 2, a second coating mechanism 3, and a second top roller 4.

[0036] The transmission mechanism includes a traction device. Under the traction of the traction device, the aluminum foil strip A is transmitted at a predetermined speed, passing sequentially through the first coating mechanism 1 and the second coating mechanism 3, with the direction of travel of the aluminum foil strip A as the reference. The first coating mechanism 1 coats one surface of the aluminum foil strip A, and the second coating mechanism 3 coats the other surface of the aluminum foil strip A.

[0037] See appendix Figure 1 , 2 5. The first coating mechanism 1 is located on one side of the aluminum foil strip A. The first coating mechanism 1 includes a first material tank 12, a first material roller 13 and a first coating roller 11. The first material tank 12 contains an aqueous slurry or a graphene slurry. The first material roller 13 is partially immersed in the slurry in the first material tank 12. The first material roller 13 is attached to the first coating roller 11. The first coating roller 11 is controlled by a first motor 16, and the first material roller 13 is controlled by a third motor 17. The rotation directions of the first material roller 13 and the first coating roller 11 are opposite.

[0038] The first material roller 13 is partially immersed in the material tank. As the first material roller 13 rotates, the slurry in the first material tank 12 is brought into the gap groove formed between the first material roller 13 and the first coating roller, so that the first coating roller 11 is adhered with slurry. Then the first coating roller 11 contacts the aluminum foil strip A and transfers the slurry into the aluminum foil strip A, thereby achieving the coating of the aluminum foil strip A.

[0039] See appendix Figure 3 The first top roller 2 has two sets, each overlapping the outer edge of the aluminum foil strip A. The first top roller 2 is located on the other side of the aluminum foil strip A and abuts against the first coating roller 11. The first top roller 2 is controlled by the first telescopic member 21. The gap between the first top roller 2 and the first coating roller 11 is adjusted by the first telescopic member 21, thereby adjusting the squeezing force between the first top roller 2 and the first coating roller 11. It should be noted that the first top roller 2 only acts on the outer edge of the aluminum foil strip A to prevent the aluminum foil strip A from warping and to ensure the uniformity of the aluminum foil coating on the side of the first coating roller 11.

[0040] See appendix Figure 1 , 2 The second coating mechanism 3 is located on the other side of the aluminum foil strip A. The second coating mechanism 3 includes a second material tank 32, a second material roller 33, and a second coating roller 31. The second material tank 32 contains an aqueous slurry or a graphene slurry. The second material roller 33 is partially immersed in the slurry in the second material tank 32. The second material roller 33 is attached to the second coating roller 31. The second coating roller 31 is controlled by a second motor 36, and the second material roller 33 is controlled by a fourth motor 37. The rotation directions of the second material roller 33 and the second coating roller 31 are opposite. The other side of the aluminum foil strip A is attached to the second coating roller 31 and passes through the second coating mechanism 3.

[0041] Since the slurry applied to the surface of aluminum foil strip A by the first coating mechanism 1 has not yet cured, the second top roller 4 cannot eliminate the curling edge of aluminum foil strip A by squeezing the edge of aluminum foil strip A in a manner similar to that of the first top roller 2. Therefore, in this embodiment, the second top roller 4 and the second coating mechanism 3 are located on the same side.

[0042] See appendix Figure 4 The second top roller 4 is provided in two sets and is respectively aligned with the outer edge of the aluminum foil strip A. The second top roller 4 is located on the other side of the aluminum foil strip A and is adjacent to the upstream of the second coating roller 31. The second top roller 4 is controlled by the second telescopic member 41. The height difference between the second top roller 4 and the second coating roller 31 is adjusted by the second telescopic member 41, thereby adjusting the tension of the aluminum foil strip A as it enters the first coating roller 11, so as to eliminate the curling of the aluminum foil strip A.

[0043] See appendix Figure 3 , 4Both the first coating roller 11 and the second coating roller 31 have rubber layers 111 and 311 on their outer peripheral surfaces, and textured structures 112 and 312 are provided on the rubber layers. By using rubber rollers with textured surfaces, the material carrying capacity of the first coating roller 11 and the second coating roller 31 is increased, the rate of missed coating is reduced, and the consistency of the coating surface is improved, thereby enhancing the performance of aluminum foil products.

[0044] The first material tank 12 and the second material tank 32 preferably contain graphene slurry. The graphene slurry has excellent dispersibility and can uniformly cover the surface of aluminum foil strip A. At the same time, the unique layer structure of the graphene coating can effectively block corrosive media and enhance the anti-corrosion effect.

[0045] See appendix Figure 1 Below the first coating mechanism 1, there is a first lifting platform 14, which is controlled by a first cylinder 141. The height of the first coating mechanism 1 is adjusted by the first cylinder 141, thereby adjusting the angle and position of the aluminum foil strip A as it enters the first coating mechanism 1 to meet different processing requirements of the aluminum foil strip A. On the other side of the first conveyor roller 13, there is a first tensioning device 15, which includes a first bolt 151. The user adjusts the position of the mounting base 51 of the first conveyor roller 13 by rotating the first bolt 151, thereby adjusting the gap between the first conveyor roller 13 and the first coating roller 11, thus controlling the amount of material conveyed by the first coating roller 11, and thus controlling the thickness of the aluminum foil coating.

[0046] Similarly, a second lifting platform 34 is provided below the second coating mechanism 3. The second lifting platform 34 is controlled by a second cylinder 341. The height of the second coating mechanism 3 is adjusted by the second cylinder 341, thereby adjusting the angle and position of the aluminum foil strip A entering the second coating mechanism 3 to meet different processing requirements of the aluminum foil strip A. A second tensioning device 35 is provided on the other side of the second conveyor roller 33. The second tensioning device 35 includes a second bolt 351. The user adjusts the position of the mounting base 51 of the second conveyor roller 33 by rotating the second bolt 351, thereby adjusting the gap between the second conveyor roller 33 and the second coating roller 31, thereby controlling the amount of material conveyed by the second coating roller 31, and thus controlling the thickness of the aluminum foil coating.

[0047] A guide roller 5 is also provided between the first coating roller 11 and the second coating roller 31. The guide roller 5 is equipped with an angle adjustment device, which includes a long strip-shaped mounting base 51 and a third cylinder 52. One end of the mounting base 51 is hinged to the frame, the guide roller 5 is located on the mounting base 51, and the output end of the third cylinder 52 is hinged to the middle position of the mounting base 51. The position of the guide roller 5 relative to the first coating roller 11 and the second coating roller 31 is adjusted by the third cylinder 52, thereby adjusting the angle at which the aluminum foil enters the second coating roller 31.

[0048] See appendix Figure 1The transmission mechanism also includes several driven rollers located before the first coating mechanism 1. The driven rollers serve as guide rollers 6a and 6b and are used to change the transmission direction of the aluminum foil strip A. They will not be described in detail here.

[0049] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. An aluminum foil coating apparatus, characterized in that, include: A transmission mechanism that transmits aluminum foil strips at a predetermined speed, with the direction of travel of the aluminum foil strips as a reference. A first coating mechanism is located on one side of the aluminum foil strip. The first coating mechanism includes a first coating roller with slurry adhered to it. One side of the aluminum foil strip is attached to the first coating roller and passes through the first coating mechanism. The first top roller has two sets, each overlapping the outer edge of the aluminum foil strip. The first top roller is located on the other side of the aluminum foil strip and abuts against the first coating roller. The second coating mechanism is located on the other side of the aluminum foil strip. The second coating mechanism includes a second coating roller, on which a slurry is adhered. The other side of the aluminum foil strip is attached to the second coating roller and passes through the second coating mechanism. The second top roller has two sets, each overlapping the outer edge of the aluminum foil strip. The second top roller is located on the other side of the aluminum foil strip and is adjacent to the upstream of the second coating roller.

2. The aluminum foil coating apparatus as described in claim 1, characterized in that, The first coating mechanism further includes: a first material trough and a first material roller, wherein the first material roller is partially immersed in the slurry in the first material trough and is attached to the first coating roller.

3. The aluminum foil coating apparatus as described in claim 2, characterized in that, The outer peripheral surface of the first coating roller is provided with a rubber layer, and a mesh structure is provided on the rubber layer.

4. The aluminum foil coating apparatus as described in claim 3, characterized in that, The first coating roller is controlled by a first motor, the first conveyor roller is controlled by a third motor, and the first conveyor roller and the first coating roller rotate in opposite directions.

5. The aluminum foil coating apparatus as described in claim 2, characterized in that, A first lifting platform is provided below the first coating mechanism, which is suitable for adjusting the height of the first coating mechanism; a first tensioning device is provided on the other side of the first material conveyor roller, which is suitable for adjusting the gap between the first material conveyor roller and the first coating roller.

6. The aluminum foil coating apparatus as described in claim 1, characterized in that, The second coating mechanism further includes: a second material trough and a second material roller, wherein the second material roller is partially immersed in the slurry in the second material trough and is attached to the second coating roller.

7. The aluminum foil coating apparatus as described in claim 6, characterized in that, The outer peripheral surface of the second coating roller is provided with a rubber layer, and a mesh structure is provided on the rubber layer.

8. The aluminum foil coating apparatus as described in claim 7, characterized in that, The second coating roller is controlled by a second motor, and the second conveyor roller is controlled by a fourth motor. The second conveyor roller and the second coating roller rotate in opposite directions.

9. The aluminum foil coating apparatus as described in claim 6, characterized in that, A second lifting platform is provided below the second coating mechanism, which is suitable for adjusting the height of the second coating mechanism; a second tensioning device is provided on the other side of the second conveyor roller, which is suitable for adjusting the gap between the second conveyor roller and the second coating roller.

10. The aluminum foil coating apparatus as described in claim 1, characterized in that, A guide roller is provided between the first coating roller and the second coating roller, and the guide roller is controlled by an angle adjustment device.

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