Flexible roller surface of coating roller and coating roller

Abstract

The utility model relates to the technical field of coating, in particular to a flexible roller surface of a coating roller and the coating roller, the flexible roller surface of the coating roller comprises a first flexible layer, and the first flexible layer can be bent into a ring shape and is used for being detachably connected with a roller shaft of the coating roller. The utility model aims to overcome the defect that the conventional coating compression roller is of a rigid cylindrical structure and can be detached from the roller surface for replacement only by detaching a fixing piece at any end of the roller shaft during replacement, and can directly detach the roller surface required to be replaced from the front surface of the roller shaft when the roller surface of the coating roller is replaced, so that the roller surface of the coating roller can be replaced conveniently. Labor cost and replacement time are greatly reduced, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, and more specifically to a flexible roller surface of a coating roller and a coating roller. Background Art

[0002] The coating roller can be used for coating operations, applying slurry to many kinds of substrates, such as paper, cardboard, plastic film, foil, metal plate, glass plate and wood board, etc. The coating roller can be applied to the coating needs of various substrates. Traditional coating rollers are generally hollow rollers welded with seamless steel and solid steel at both ends. Each roller corresponds to a roller surface. When encountering different substrates or different sizing quantitative requirements, it is necessary to replace the coating roller with a different roller surface. When replacing, the entire coating roller needs to be disassembled and replaced.

[0003] In order to address the problem of inconvenient disassembly and replacement of the coating roller as a whole, a Chinese patent document discloses a detachable roller surface structure for a roller press, comprising a first fixed shaft and a second fixed shaft, a rotating shaft is arranged between the first fixed shaft and the second fixed shaft, a detachable mechanism is arranged on the outer side of the rotating shaft, and the detachable mechanism comprises a pressure roller, by rotating the bolt, the bolt is taken out from the threaded hole and the threaded groove, and then the disassembly between the rotating shaft and the second fixed shaft is completed, by pulling the pull ring to drive the movable plate to move upward, the clamping rod is taken out from the clamping groove, the relative fixation of the pressure roller and the rotating shaft is released, and then the pressure roller is disassembled from the rotating shaft and one end of the second fixed shaft is disengaged, so as to realize the disassembly of the pressure roller as the roller surface; when replacing, the new pressure roller is inserted into one end of the second fixed shaft disassembled from the rotating shaft, and then the pressure roller is first fixed to the rotating shaft and the second fixed shaft is installed, and finally the replacement and fixation of the roller surface is completed.

[0004] The above scheme connects the pressure roller serving as the roller surface to the rotating shaft in a detachable manner through a sleeve connection. When replacing, the fixing part at one end of the rotating shaft is removed to release one end of the rotating shaft. After the fixed connection between the pressure roller and the rotating shaft is released, the pressure roller can be slid out from one end of the rotating shaft to complete the replacement. Although this method does not require the overall replacement of the entire roller shaft, which optimizes the replacement difficulty to a certain extent, since the roller surface is still a rigid cylindrical structure, it cannot be directly removed from the roller shaft fixed at both ends. When replacing, it is still necessary to remove the fixings at either end of the roller shaft to achieve the removal and sleeve installation of the roller surface. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the existing coating roller, which is a rigid cylindrical structure and must remove the fixings at either end of the roller shaft to remove the roller surface for replacement, and provide a coating roller with a flexible roller surface and a coating roller. When the coating roller surface is replaced, the utility model can directly remove the roller surface to be replaced from the front of the roller shaft, greatly reducing labor costs and replacement time, and the operation is simple and convenient.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A flexible roller surface of a coating roller comprises a flexible first layer, which can be bent into a ring shape and is used for detachably connecting with a roller shaft of the coating roller.

[0008] The utility model uses the flexible first layer as the base of the flexible roller surface, and the flexible first layer can be bent into a ring shape and directly surround the outer side of the roller shaft of the coating roller. When the roller surface is replaced, there is no need to disassemble the fixing devices on one side or both sides of the roller shaft, and the roller surface to be replaced can be directly disassembled from the front side of the roller shaft. Since the flexible first layer is flexible, it can be restored to a plate from the bent ring shape after the connection between the flexible first layer and the roller shaft is released, so that it can be quickly and conveniently peeled off from the front side of the roller shaft. The disassembly method is fast and convenient, and there is no need to disassemble other fixing parts of the roller shaft, which greatly reduces labor costs and replacement time, and the operation is simple and convenient.

[0009] It should be noted that the specification of the flexible first layer after being bent into a ring shape matches the roller shaft size of the coating roller, and the flexible first layer can be completely attached and wrapped around the outer circumference of the roller shaft.

[0010] It should also be noted that the "flexibility" of the flexible first layer is defined as: the "flexibility" can make the flexible first layer undergo elastic deformation so that it can at least break away from the roller and be peeled off the roller, or the "flexibility" can make the flexible first layer return to the state of a flat plate.

[0011] Furthermore, the flexible roller surface of the coating roller further includes a second layer interconnected with the flexible first layer.

[0012] As the roller surface of the coating roller, since the flexible first layer needs to have a certain flexibility, the plate material that can be used to make the flexible first layer cannot guarantee that it has a good coating slurry hanging ability. On the basis of the flexibly bendable flexible first layer as the overmolding substrate, a second layer interconnected with the flexible first layer is also provided. The second layer is used to meet the coating slurry amount required for coating. The material selection of the second layer is wider, and materials different from the flexible first layer can be selected to achieve different slurry adsorption capabilities, so that the roller surface has a wider coating capacity.

[0013] Furthermore, the flexible first layer is a flexible metal plate, and the second layer is a non-woven fabric layer.

[0014] It should be noted that the flexible base layer needs to be flexible enough to bend and has a certain structural strength to cope with the extrusion deformation of the roller during the coating process. Therefore, the use of a flexible metal plate can meet its functional requirements. When coating on a traditional ordinary steel roller surface, since the special slurry has strong fluidity and cannot adhere to the traditional ordinary steel roller surface, in order to ensure full coating during coating, excessive slurry is usually used for coating. The slurry will be unevenly distributed and affect the coating effect. The second layer of the utility model uses a non-woven fabric layer. The non-woven fabric has a very excellent porous structure and adsorption capacity. The coating slurry will be absorbed by the non-woven fabric layer and conducted to the entire roller surface. When coating, the minimum liquid amount can be coated, which greatly reduces the waste of slurry and reduces production costs.

[0015] Furthermore, the flexible metal plate may be an alloy metal plate, including but not limited to aluminum alloy, iron-carbon alloy or steel alloy with good flexibility.

[0016] As a preferred solution, the flexible first layer and the second layer are bonded together by an organic solvent resistant glue layer.

[0017] Furthermore, the organic solvent resistant glue layer is a phenolic glue layer, an epoxy resin glue layer or a hot melt glue layer.

[0018] It should be noted that, since organic solvent coatings are mostly used for coating at present, in order to ensure the adhesive strength between the flexible first layer and the second layer, anti-organic solvent glue is used to bond and fix the two.

[0019] As another preferred solution, the outer periphery of the second layer is fixed around the flexible first layer by means of a metal clip.

[0020] Furthermore, the metal clip fixes the flexible first layer and the second layer by rivets.

[0021] It should be noted that the flexible first layer and the second layer are fixed in the form of a metal clip clamp, so that no matter facing organic coating solvent coating or non-organic coating coating, there is no need to worry about whether the connection between the flexible first layer and the second layer will fail. The mechanical clamp connection method is simpler and more effective. At the same time, by fixing on all sides, it will not affect the porosity problem of the non-woven fabric itself, and retain a better adsorption effect of the coating slurry.

[0022] The utility model also provides a coating roller, comprising a roller shaft and the above-mentioned flexible roller surface of the coating roller which is detachably connected to the roller shaft.

[0023] When the coating roller surface is replaced, since the flexible first layer is detachably connected to the roller shaft by bending into a ring shape and directly surrounding the outside of the roller shaft, the roller surface to be replaced can be directly disconnected from the roller shaft and then removed directly from the front of the roller shaft during removal and replacement. This front removal method is quick and convenient, and there is no need to remove other fixings on one or both sides of the roller shaft, and the operation is simple and convenient.

[0024] Furthermore, a plurality of slots are provided on the roller shaft, and a plurality of buckles corresponding to the slots are provided on the side of the flexible first layer that contacts the rotating shaft, and the slots and buckles are interference fit. The detachable connection mode of the slot buckles can quickly peel the flexible first layer from the roller shaft, and the structure is simple and effective.

[0025] Furthermore, the roller and the flexible first layer are detachably connected by screws, and screw holes corresponding to the positions are respectively provided on the roller and the flexible first layer. The screw and screw hole fixing method can have a relatively stable connection strength, and the roller and the flexible first layer will not be easily separated, which is suitable for stable coating by a high-speed coating machine.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] The utility model uses the flexible first layer as the base of the flexible roller surface, and the flexible first layer can be bent into a ring shape and directly surround the outer side of the roller shaft of the coating roller. When the roller surface of the coating roller is replaced, there is no need to disassemble the fixing devices on one side or both sides of the roller shaft, and the roller surface to be replaced can be directly disassembled from the front side of the roller shaft, which simplifies the difficulty of disassembling the roller surface. Since the flexible first layer is flexible, it can be restored from the bent ring shape to a flexible plate after the connection between the flexible first layer and the roller shaft is released, so that it can be quickly and conveniently peeled off from the front side of the roller shaft, which greatly reduces labor costs and replacement time, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the coating roller in the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the flexible roller surface of the coating roller in the utility model;

[0030] Figure 3 This is a schematic diagram of the connection between the flexible first layer and the second layer in Example 2 of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the card slot and the card buckle in Example 3 of the utility model.

[0032] The illustrations are as follows:

[0033] 1-flexible first layer, 2-second layer, 3-metal clip, 4-rivet, 100-roller, 101-slot, 11-buckle. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0035] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] Example 1

[0037] like Figure 1 to Figure 2 As shown, a flexible roller surface of a coating roller comprises a flexible first layer 1. The flexible first layer 1 can be bent into a ring shape and is used for detachably connecting with a roller shaft 100 of the coating roller.

[0038] In this embodiment, the specification of the flexible first layer 1 after being bent into a ring shape matches the size of the roller shaft 100 of the coating roller, and the flexible first layer 1 can be completely attached and wrapped around the outer circumference of the roller shaft 100 .

[0039] like Figure 2 As shown, the flexible roller surface of the coating roller further comprises a second layer 2 interconnected with the flexible first layer 1 .

[0040] As the roller surface of the coating roller, since the flexible first layer 1 needs to have a certain flexibility, the plate material that can be used to make the flexible first layer 1 cannot guarantee that it has a good coating slurry hanging ability. On the basis of the flexibly bendable flexible first layer 1 as the overmolding substrate, a second layer 2 interconnected with the flexible first layer 1 is also provided. The second layer 2 is used to meet the coating slurry amount required for coating. The material selection of the second layer 2 is wider, and materials different from the flexible first layer 1 can be selected to achieve different slurry adsorption capabilities, so that the roller surface has a wider coating capacity.

[0041] In this embodiment, the flexible first layer 1 is a flexible metal plate, and the second layer 2 is a non-woven fabric layer.

[0042] It should be noted that the flexible base layer needs to be flexible enough to bend and also needs to have a certain structural strength to be able to cope with the extrusion deformation of the roller 100 during the coating process. Therefore, the use of a flexible metal plate can meet its functional requirements; when coating on a traditional ordinary steel roller surface, since the special slurry has strong fluidity and cannot adhere to the traditional ordinary steel roller surface, in order to ensure full coating during coating, excessive slurry is usually used for coating, and the slurry will be unevenly distributed, affecting the coating effect. The second layer 2 of the utility model uses a non-woven fabric layer. The non-woven fabric has a very excellent porous structure and adsorption capacity. The coating slurry will be absorbed by the non-woven fabric layer and conducted to the entire roller surface. When coating, the minimum liquid amount can be coated, which greatly reduces the waste of slurry and reduces production costs.

[0043] In this embodiment, the flexible metal plate is a steel alloy metal plate with good flexibility.

[0044] In this embodiment, the flexible first layer 1 and the second layer 2 are bonded together by an organic solvent resistant glue layer.

[0045] In this embodiment, the organic solvent resistant glue layer is a phenolic glue layer, an epoxy resin glue layer or a hot melt glue layer.

[0046] It should be noted that, since organic solvent coatings are mostly used for coating at present, in order to ensure the adhesive strength between the flexible first layer 1 and the second layer 2, an organic solvent-resistant glue is selected to bond and fix the two.

[0047] The advantages of the present application are: by using the flexible first layer 1 as the base of the flexible roller surface, the flexible first layer 1 can be bent into a ring shape and directly wrapped around the outside of the roller shaft 100 of the coating roller. When the roller surface of the coating roller is replaced, there is no need to remove the fixing device on one side or both sides of the roller shaft 100, and the roller surface to be replaced can be directly removed from the front of the roller shaft 100. Since the flexible first layer 1 is flexible, after the connection between the flexible first layer 1 and the roller shaft 100 is released, it can be restored from the bent ring shape to a rectangular flexible plate, so that it can be quickly and conveniently peeled off from the front of the roller shaft 100, which greatly reduces labor costs and replacement time, and the operation is simple and convenient.

[0048] Example 2

[0049] This embodiment is similar to Embodiment 1, except that in this embodiment:

[0050] like Figure 3 As shown, the outer periphery of the second layer 2 is wrapped and fixed around the flexible first layer 1 by a metal clip 3 .

[0051] like Figure 3 As shown, the metal clip 3 fixes the flexible first layer 1 and the second layer 2 via rivets 4 .

[0052] This embodiment uses a metal clip 3 to fix the flexible first layer 1 and the second layer 2. In this way, no matter facing an organic coating solvent coating or a non-organic coating coating, there is no need to worry about whether the connection between the flexible first layer 1 and the second layer 2 will fail. The mechanical clamp connection method is simpler and more effective. At the same time, by fixing it on all sides, it will not affect the porosity problem of the non-woven fabric itself, and retain a better adsorption effect of the coating slurry.

[0053] The other structures and principles of this embodiment are the same as those of Embodiment 1.

[0054] Example 3

[0055] like Figure 1 and Figure 4 As shown, a coating roller includes a roller shaft 100 and a flexible roller surface of the coating roller as described in the above embodiment 1 or 2 which is detachably connected to the roller shaft 100 .

[0056] like Figure 4 As shown, a plurality of slots 101 are provided on the roller 100, and a plurality of buckles 11 corresponding to the positions of the slots 101 are provided on the side of the flexible first layer 1 that contacts the rotating shaft, and the slots 101 are interference-fitted with the buckles 11. The detachable connection mode of the slot buckles 11 can quickly peel the flexible first layer 1 from the roller 100, and the structure is simple and effective.

[0057] In this embodiment, the flexible first layer 1 can be bent into a ring shape and directly surround the outside of the roller shaft 100 of the coating roller. When the roller surface of the coating roller is replaced, there is no need to remove the fixing devices on one side or both sides of the roller shaft 100. The roller surface that needs to be replaced can be directly removed from the front of the roller shaft 100. Since the flexible first layer 1 is flexible, it can be restored from the bent ring shape to a rectangular flexible plate after the connection between the flexible first layer 1 and the roller shaft 100 is released, so that it can be quickly and conveniently peeled off from the front of the roller shaft 100, which greatly reduces labor costs and replacement time, and the operation is simple and convenient.

[0058] Example 4

[0059] This embodiment is similar to Embodiment 3, except that:

[0060] In this embodiment, the roller 100 and the flexible first layer 1 are detachably connected by screws, and screw holes corresponding to the positions are respectively provided on the roller 100 and the flexible first layer 1. The screw and screw hole fixing method can have a relatively stable connection strength, and the roller 100 and the flexible first layer 1 will not be easily separated, which is suitable for high-speed coating machines to perform stable coating.

[0061] In this embodiment, the flexible first layer 1 can be bent into a ring shape and directly surround the outside of the roller shaft 100 of the coating roller. When the roller surface of the coating roller is replaced, there is no need to remove the fixing devices on one side or both sides of the roller shaft 100. The roller surface that needs to be replaced can be directly removed from the front of the roller shaft 100. Since the flexible first layer 1 is flexible, after the connection between the flexible first layer 1 and the roller shaft 100 is released, it can be restored from the bent ring shape to a rectangular flexible plate, so that it can be quickly and conveniently peeled off from the front of the roller shaft 100, which greatly reduces labor costs and replacement time, and the operation is simple and convenient.

[0062] The other structures and principles of this embodiment are the same as those of Embodiment 3.

[0063] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A coating roller with a flexible roller surface, characterized in that: The invention comprises a flexible first layer (1), wherein the flexible first layer (1) can be bent into a ring shape and is used for being detachably connected to a roller shaft (100) of a coating roller; and a second layer (2) interconnected with the flexible first layer (1); the flexible first layer (1) is a flexible metal plate, and the second layer (2) is a non-woven fabric layer.

2. The flexible roller surface of a coating roller according to claim 1, characterized in that: The flexible first layer (1) and the second layer (2) are bonded together via an organic solvent-resistant glue layer.

3. The flexible roller surface of a coating roller according to claim 2, characterized in that: The anti-organic solvent glue layer is a phenolic glue layer, an epoxy resin glue layer or a hot melt glue layer.

4. The flexible roller surface of a coating roller according to claim 1, characterized in that: The outer periphery of the second layer (2) is wrapped and fixed around the flexible first layer (1) by a metal clip (3).

5. The flexible roller surface of a coating roller according to claim 4, characterized in that: The metal clip (3) fixes the flexible first layer (1) and the second layer (2) via rivets (4).

6. A coating roller, comprising a roller shaft (100), characterized in that: It also comprises a flexible roller surface of the coating roller according to any one of claims 1 to 5 which is detachably connected to the roller shaft (100).

7. A coating roller according to claim 6, characterized in that: The roller shaft (100) is provided with a plurality of slots (101); a side of the flexible first layer (1) in contact with the roller shaft (100) is provided with a plurality of buckles (11) corresponding to the positions of the slots (101); the slots (101) and the buckles (11) are interference fit.

8. A coating roller according to claim 6, characterized in that: The roller shaft (100) and the flexible first layer (1) are detachably connected via screws, and screw holes corresponding to the positions are respectively provided on the roller shaft (100) and the flexible first layer (1).

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