Roller coating device for anti-fingerprint coating of stainless steel plate

Abstract

The utility model relates to the technical field of roller coating equipment, in particular to a stainless steel plate anti-fingerprint coating roller coating device which comprises a conveying mechanism, a pair of frame bodies, a roller coating mechanism and a pair of anti-mirror frame mechanisms. The conveying mechanism can conduct conveying in the x-axis direction, the pair of frame bodies are located on the two transverse sides of the conveyor respectively, the roller coating mechanism is fixedly installed through a rack and stretches across the conveying mechanism, and the anti-lens frame mechanism is fixedly installed through the rack of the conveying mechanism and located between the conveying mechanism and the frame bodies. The anti-lens frame mechanism comprises a base, a roller shaft installed through the base and an anti-lens frame roller capable of being rotatably installed on the roller shaft, the axis of the roller shaft is arranged in the y-axis direction, the anti-lens frame roller is a circular-truncated-cone-shaped roller, the end face, with the large diameter, of the anti-lens frame roller faces the conveying mechanism, and a rim formed by the end face is higher than the conveying face of the conveying mechanism. The higher height is the thickness of the stainless steel plate, and the distance between the pair of anti-mirror frame rollers is the width of the stainless steel plate.

Description

Technical Field

[0001] This application relates to the technical field of roller coating equipment, and more specifically, to a roller coating apparatus for anti-fingerprint coating of stainless steel plates. Background Technology

[0002] It is known that applying water-based anti-fingerprint coatings to the surface of stainless steel sheets by roller coating, spraying, or dip coating can prevent fingerprints, palm prints, and other marks from being left. Therefore, anti-fingerprint stainless steel sheets are widely used in the production of home appliances, kitchen and bathroom utensils, and kitchen and bathroom furniture.

[0003] The applicant's prior applications involving anti-fingerprint treatment of stainless steel plates, such as the invention patents with publication number CN107776947B entitled "Anti-fingerprint steel plate production line" and publication number CN116511008B entitled "A production method and continuous production line for anti-fingerprint hairline stainless steel plate", describe a roller coating device for water-based anti-fingerprint coatings applicable to flat stainless steel plates and hairline stainless steel plates.

[0004] In actual production, the lower the coating amount per unit area of ​​anti-fingerprint coating, the thinner the coating thickness. This is beneficial for coating adhesion and decorative properties, and also helps to reduce production costs. However, when the coating thickness is small, the problem of coating framing is prone to occur, that is, the coating tends to rub against the edge of the stainless steel plate, making the coating thickness near the edge greater than other areas, resulting in a frame-like effect after film formation. Utility Model Content

[0005] The purpose of this application is to provide a roller coating apparatus for anti-fingerprint coating on stainless steel plates, so as to solve the problem that water-based anti-fingerprint coatings are prone to producing a "frame effect" when the coating amount is low. The specific technical solution adopted is as follows:

[0006] A roller coating device for anti-fingerprint coating on stainless steel plates includes a conveying mechanism, a pair of frames, a roller coating mechanism, and a pair of anti-mirror frame mechanisms. The conveying mechanism is capable of conveying along the x-axis. The pair of frames are located on opposite sides of the conveyor. The roller coating mechanism is fixedly installed across the conveying mechanism via the frames. The anti-mirror frame mechanisms are fixedly installed between the conveying mechanism and the frames via the frame of the conveying mechanism. The anti-mirror frame mechanism includes a base, a roller shaft mounted on the base, and an anti-mirror frame roller rotatably mounted on the roller shaft. The axis of the roller shaft is along the y-axis. The anti-mirror frame roller is a frustum-shaped roller with its larger diameter end facing the conveying mechanism. The rim formed by this end face is higher than the conveying surface of the conveying mechanism by a height equal to the thickness of the stainless steel plate. The distance between the pair of anti-mirror frame rollers is equal to the width of the stainless steel plate.

[0007] Preferably, a release layer is adhered to the side of the anti-mirror frame roller.

[0008] Preferably, the base is provided with a scraper that abuts against the side of the anti-mirror frame roller.

[0009] Preferably, the scraper has a V-groove.

[0010] Preferably, a paint recycling tank is provided below the scraper.

[0011] Preferably, the anti-mirror frame roller is mounted on the roller shaft and is movable along the y-axis; a compression spring is sleeved on the roller shaft, one end of the compression spring is fixedly connected to the base, and the other end is fixedly connected to the smaller diameter end face of the anti-mirror frame roller.

[0012] Preferably, the anti-mirror frame mechanism further includes a lifting unit, which includes a vertical plate fixedly installed on the frame of the conveying mechanism. The bottom of the vertical plate extends vertically to form a horizontal plate, and a lifting cylinder is fixedly installed on the horizontal plate. The telescopic end of the lifting cylinder is fixedly connected to the base.

[0013] Preferably, the vertical plate is provided with a guide groove, and the base is provided with a slider that cooperates with the guide groove.

[0014] Preferably, the x-axis is perpendicular to the y-axis.

[0015] A roller coating device for anti-fingerprint coating on stainless steel plate using the technical solution of this application has the following features: when the stainless steel plate enters the conveying mechanism, the larger diameter end face of a pair of anti-frame rollers abuts against the side of the stainless steel plate, and the rim of the pair of anti-frame rollers is at the same height as the surface of the stainless steel plate. Thus, the side of the anti-frame rollers can extend the width of the stainless steel plate, thereby preventing the formation of a frame due to coating accumulation at the edge of the stainless steel plate when roller coating water-based anti-fingerprint coating. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of a roller coating apparatus for anti-fingerprint coating on stainless steel plates provided in Embodiment 1 of this application.

[0018] Figure 2 This is a schematic diagram of a conveying mechanism and a mirror frame mechanism provided in Embodiment 1 of this application.

[0019] Figure 3This is a schematic diagram of a frame-protecting mechanism provided in Embodiment 3 of this application.

[0020] Among them, 100 is the frame, 200 is the conveying mechanism, 300 is the roller coating mechanism, 400 is the anti-mirror frame mechanism, 410 is the base, 420 is the roller shaft, 430 is the anti-mirror frame roller, 440 is the lifting unit, 441 is the vertical plate, 442 is the horizontal plate, 443 is the lifting cylinder, 444 is the guide groove, 450 is the scraper, 460 is the paint recovery tank, and 500 is the stainless steel plate. Detailed Implementation

[0021] The technical solutions of this application 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 this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example 1

[0022] Reference Figure 1 , Figure 2 The device shown is a roller coating apparatus for anti-fingerprint coating on stainless steel plates. It connects a front conveying mechanism and a rear conveying mechanism, and includes a pair of frames 100, a conveying mechanism 200, a roller coating mechanism 300, and a pair of anti-frame mechanisms 400.

[0023] The roller coating apparatus connects the front conveyor and the rear conveyor, thus connecting the frames on both sides of the front and rear conveyors to form a pair of frames 100 in this embodiment. In some other embodiments, the frames 100 may be independent. The frames 100 are adapted to provide space and support for the installation of the roller coating mechanism 300. The front and rear conveyors may be existing roller conveyors or belt conveyors.

[0024] The conveying mechanism 200 is a prior art roller conveyor or belt conveyor, capable of conveying along the x-axis direction and located between a pair of frames 100. In other words, the width of the conveying mechanism 200 is smaller than that of the front and rear conveying mechanisms, but it has a conveying working surface at the same height as the front and rear conveying mechanisms, thus enabling it to form a continuous conveying line with the front and rear conveying mechanisms.

[0025] The roller coating mechanism 300 is prior art, for example, the technical solution used in the aforementioned invention patents with publication numbers CN107776947B and CN116511008B. The roller coating mechanism 300 is screwed onto a pair of frames 100 and is arranged across the conveying mechanism 200. The length of the coating roller of the roller coating mechanism 300 should be greater than the width of the conveying mechanism 200 and less than the distance between the pair of frames 100.

[0026] The anti-glare frame mechanism 400 is screwed onto the frame of the conveying mechanism 200, located in the gap between the conveying mechanism 200 and the frame 100. Specifically, the anti-glare frame mechanism 400 includes a base 410, a roller shaft 420 mounted on the base 410 via bearings, and anti-glare frame rollers 430 mounted on the roller shaft 420 and rotatable via roller bearings. The axis of the roller shaft 420 is arranged along the y-axis direction. In particular, the anti-glare frame roller 430 is a frustum-shaped roller, with its larger diameter end face facing the conveying mechanism 200, and the rim formed by this end face is higher than the conveying working surface of the conveying mechanism 200 by a height equal to the thickness of the stainless steel plate 500. The distance between a pair of anti-glare frame rollers 430 is equal to the width of the stainless steel plate 500.

[0027] With the above structure, when the stainless steel plate 500 enters the conveying mechanism 200 via the front conveying mechanism, the larger diameter end faces of a pair of anti-frame rollers 430 abut against the side of the stainless steel plate 500. Simultaneously, the rims of the pair of anti-frame rollers 430 are at the same height as the surface of the stainless steel plate 500. Therefore, the side faces of the anti-frame rollers 430 can extend the width of the stainless steel plate 500, thus preventing the formation of a frame due to paint accumulation at the edges of the stainless steel plate 500 during the application of water-based anti-fingerprint coating. The frustum-shaped anti-frame rollers 430 facilitate the guidance and removal of excess paint.

[0028] Generally, stainless steel sheet 500 is a standard product, so it has a uniform width. However, in actual production, errors inevitably occur during the edge trimming process. To eliminate width errors and ensure that the larger diameter end face of the anti-frame roller 430 always abuts against the side of the stainless steel sheet 500, the anti-frame roller 430 is mounted on a roller shaft that can move along the y-axis, for example, using a self-aligning roller bearing. Simultaneously, a compression spring is fitted onto the roller shaft 420. One end of the compression spring is fixedly connected to the base 410, and the other end is fixedly connected to the smaller diameter end face of the anti-frame roller 430.

[0029] In practice, the stainless steel plate 500 comes in various thicknesses. To ensure that the rim formed by the larger diameter end face of the anti-mirror frame roller 430 is always at the same height as the surface of the stainless steel plate 500, the anti-mirror frame mechanism 400 also includes a lifting unit 440. The lifting unit 440 includes a vertical plate 441 screwed onto the frame of the conveying mechanism 200. The bottom of the vertical plate 441 extends vertically to form a horizontal plate 442. A lifting cylinder 443 is fixedly installed on the horizontal plate 442. The telescopic end of the lifting cylinder 443 is welded or keyed to a hinge seat, thereby fixing its telescopic end to the hinge seat. The hinge seat is then screwed or welded to the base 410. Thus, the telescopic movement of the lifting cylinder 443 can drive the base 410 to adjust the height of the anti-mirror frame roller 430.

[0030] Preferably, the vertical plate 441 is provided with a guide groove 444, and the base 410 is integrally formed with a slider that cooperates with the guide groove 444.

[0031] In this embodiment, the x-axis is perpendicular to the y-axis. Example 2

[0032] The difference between Example 2 and Example 1 is that a release layer (not shown in the figure) is adhered to the side of the anti-fingerprint roller 430. The release layer can be BOPP (biaxially oriented polypropylene) tape, which is used to isolate the water-based anti-fingerprint coating from the side of the anti-fingerprint roller 430, and to keep the anti-fingerprint roller 430 clean by periodically replacing the release layer. Example 3

[0033] The difference between Example 3 and Example 1 is that, referring to... Figure 3 As shown, a scraper 450, having a certain length and a V-groove, is fixedly mounted on the base by screws or welding. The scraper 450 is inclined at 45° to 50° with the xy plane, and its end is irregularly shaped to abut against the side of the anti-fingerprint roller. Simultaneously, a paint recovery tank 460 is placed below the scraper 450 and above the horizontal plate 442 to recover the water-based anti-fingerprint paint flowing down the scraper 450.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this application.

Claims

1. A roll coater device for a fingerprint-resistant coating for stainless steel sheets, characterized by, The device comprises a conveying mechanism, a pair of frames, a roller coating mechanism and a pair of mirror frame preventing mechanisms. The conveying mechanism can convey along the x-axis direction. A pair of frames are respectively located on the lateral sides of the conveying mechanism. The roller coating mechanism is fixedly installed through the frames and is arranged across the conveying mechanism. The mirror frame preventing mechanism is fixedly installed through the frame of the conveying mechanism and is located between the conveying mechanism and the frame. The mirror frame preventing mechanism comprises a base, a roller shaft installed through the base and a rotatable mirror frame preventing roller installed on the roller shaft. The axis of the roller shaft is arranged along the y-axis direction. The mirror frame preventing roller is a circular truncated cone shaped roller. The end face with a larger diameter of the mirror frame preventing roller faces the conveying mechanism. The rim formed by the end face is higher than the conveying surface of the conveying mechanism. The height of the rim is the thickness of the stainless steel plate. The distance between a pair of mirror frame preventing rollers is the width of the stainless steel plate.

2. The roll coater device for a stainless steel sheet anti-fingerprint coating according to claim 1, characterized by A release layer is pasted on the side face of the mirror frame preventing roller.

3. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 1, characterized by A scraper is arranged on the base and abuts against the side face of the mirror frame preventing roller.

4. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 3, characterized by The scraper has a V-shaped groove.

5. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 3, characterized by A paint recycling groove is arranged below the scraper.

6. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 1, characterized by The mirror frame preventing roller is movably installed on the roller shaft along the y-axis direction. A compression spring is sleeved on the roller shaft. One end of the compression spring is fixedly connected with the base. The other end of the compression spring is fixedly connected with the end face with a smaller diameter of the mirror frame preventing roller.

7. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 1, characterized by The mirror frame preventing mechanism further comprises a lifting unit. The lifting unit comprises a vertical plate fixedly installed on the frame of the conveying mechanism. The bottom of the vertical plate is vertically extended to form a horizontal plate. A lifting cylinder is fixedly installed on the horizontal plate. The telescopic end of the lifting cylinder is fixedly connected with the base.

8. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 7, characterized by A guide groove is formed on the vertical plate. A sliding block matched with the guide groove is arranged on the base.

9. The roll coater device for a stainless steel sheet anti-fingerprint coating material according to claim 1, characterized by The x-axis is perpendicular to the y-axis.

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