Double-scraper wetting scraping cylinder device for printing roller of coating machine

Abstract

The utility model provides a double-scraper wetting scraping cylinder device for a printing roller of a coating machine, which relates to the technical field of coating printing and comprises two fixing blocks and a supporting shaft. The printing roller is arranged above the supporting shaft and is used for printing the metal sheet; the bearing roller is arranged below the printing roller and is in running fit with the printing roller to convey and print the metal sheet; the scraping mechanism is arranged on the surface of the fixed block and is used for cleaning the coating adhered to the bearing roller; and the wetting mechanism is arranged on the surface of the fixing block and is used for coating a solvent on the bearing roller and conveniently scraping off the adhered coating, the scraping mechanism comprises a hydraulic rod A, the hydraulic rod A is rotationally connected with the fixing block, and the output end of the hydraulic rod A is rotationally connected with an adapter rod. The utility model solves the problem that the printing effect of equipment is poorer due to unstable conveying of metal sheets by the bearing roller caused by the fact that the coating adhered to the bearing roller is more easily coagulated and cured and is not easy to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of coating and printing, in particular to a double-scraper wetting and scraping cylinder device for a printing roller of a coating machine. Background Art

[0002] Coating printing is a printing technology that evenly applies coatings, inks or other materials to substrates such as paper, plastic or metal surfaces. Coating printing can achieve high-quality color performance and pattern detail, and is suitable for a variety of industries and application scenarios. This technology is widely used in packaging, labeling, advertising and various artistic creations.

[0003] The original organic solvent coatings have been switched to more environmentally friendly epoxy coatings. The new coatings have a higher solid content and the solvents are easier to harden. During the coating and printing process, the coating adhered to the support roller is more likely to condense and solidify, and is difficult to clean, which will cause the support roller to transport the metal sheet unstably, resulting in poor printing effect of the equipment. Utility Model Content

[0004] The utility model provides a double-scraper wetting scraper cylinder device for a printing roller of a coating machine, which solves the problems raised by the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0006] The embodiment of the utility model provides a double-scraper wetting and scraping cylinder device for a coating machine printing roller, comprising:

[0007] Two fixed blocks and support shaft;

[0008] The printing roller is arranged above the supporting shaft to realize the printing operation on the metal sheet;

[0009] The supporting roller is arranged below the printing roller and rotates with the printing roller to realize the conveying and printing of the metal sheet;

[0010] The scraping mechanism is arranged on the surface of the fixed block to clean the paint adhered to the supporting roller;

[0011] The wetting mechanism is arranged on the surface of the fixed block to apply solvent to the supporting roller, so as to facilitate scraping off the adhered paint.

[0012] Furthermore, the scraping mechanism includes a hydraulic rod A, which is rotatably connected to a fixed block, and the output end of the hydraulic rod A is rotatably connected to a transfer rod, and the two transfer rods are rotatably connected to a support shaft, and the ends of the two transfer rods are fixedly connected to a mounting plate, and the surface of the mounting plate is slidably connected to a splint, and the surface of the mounting plate is detachably mounted with a strip scraper.

[0013] Furthermore, the inner wall of the mounting plate is threadedly connected with a plurality of fixing bolts, and the fixing bolts are threadedly connected to the clamping plate.

[0014] Furthermore, a drainage groove is fixedly connected to the surface of the mounting plate, and a plurality of conduits are provided on the inner wall of the drainage groove.

[0015] Furthermore, the wetting mechanism includes a hydraulic rod B, which is rotatably connected to a fixed block, and the output ends of the two hydraulic rods B are rotatably connected to a collecting tank, and the collecting tank is rotatably connected to a support shaft, and the surface of the collecting tank is fixedly connected to two connecting blocks, and the surfaces of the two connecting blocks are fixedly connected to a solution tank, and the inner wall of the solution tank is slidably connected to a movable plate, and a plurality of through holes are opened on the surface of the movable plate, and a wetting strip is fixedly connected to the surface of the movable plate.

[0016] Furthermore, a plurality of telescopic rods are fixedly connected to the inner wall of the solution tank, the ends of the telescopic rods are fixedly connected to the movable plate, the arc surface of the telescopic rods is sleeved with a spring, one end of the spring is fixedly connected to the movable plate, and the other end of the spring is fixedly connected to the solution tank.

[0017] The above solution of the utility model includes at least the following beneficial effects:

[0018] 1. The utility model provides a fixed block, a support shaft, a scraping mechanism and a wetting mechanism. First, a dissolved solution is applied to the surface of the support roller to decompose the hardened paint adhering to the support roller. Then, a scraper scrapes off the dissolved solution and the residual paint to clean the support roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This utility model Figure 1 A structural diagram from another perspective;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the entire utility model;

[0022] Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0023] Figure 5 This utility model Figure 3 Schematic diagram of the enlarged structure at point B.

[0024] Description of reference numerals:

[0025] 1. Fixed block; 2. Support shaft; 3. Printing roller; 4. Support roller; 5. Scraping mechanism; 51. Hydraulic rod A; 52. Adapter rod; 53. Mounting plate; 54. Fixing bolt; 55. Strip scraper; 56. Clamping plate; 57. Drainage trough; 6. Wetting mechanism; 61. Hydraulic rod B; 62. Collecting trough; 63. Connecting block; 64. Solution trough; 65. Spring; 66. Telescopic rod; 67. Moving plate; 68. Wetting strip. DETAILED DESCRIPTION

[0026] The following describes exemplary embodiments of the present invention in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0027] like Figures 1 to 5 As shown, an embodiment of the present invention provides a double-scraper wetting and scraping cylinder device for a coating machine printing roller, comprising: two fixed blocks 1 and a support shaft 2; a printing roller 3, which is arranged above the support shaft 2 to realize printing operations on metal sheets; a supporting roller 4, which is arranged below the printing roller 3 and rotates with the printing roller 3 to realize conveying and printing on metal sheets; a scraping mechanism 5, which is arranged on the surface of the fixed block 1 to realize cleaning of the paint adhered to the supporting roller 4; a wetting mechanism 6, which is arranged on the surface of the fixed block 1 to realize coating of the supporting roller 4 with a solvent, so as to facilitate scraping off the adhered paint.

[0028] like Figure 4As shown, the scraping mechanism 5 includes a hydraulic rod A51, which is rotatably connected to the fixed block 1, and the output end of the hydraulic rod A51 is rotatably connected to the transfer rod 52, and the two transfer rods 52 are rotatably connected to the support shaft 2. The ends of the two transfer rods 52 are fixedly connected to the mounting plate 53, and the surface of the mounting plate 53 is slidably connected to the clamping plate 56. The surface of the mounting plate 53 is detachably mounted with a strip scraper 55. During the printing process, the printing roller 3 and the supporting roller 4 are driven to rotate by the motor of the equipment, thereby driving the metal sheet from the printing plate The brush roller 3 passes between the support roller 4, and the printing roller 3 presses the metal sheet to print. At the same time, the relatively rotating support roller 4 cooperates with the sodium acetate girl to drive the metal sheet to move. At this time, the hydraulic rod A51 and the hydraulic rod B61 are in an extended state, so that the strip scraper 55 and the wetting strip 68 are in a fitted state. The extension of the hydraulic rod A51 will push the adapter rod 52 to rotate along the support shaft 2, and the strip scraper 55 moves toward the support roller 4 and fits it, scraping the paint and solvent mixture adhered to the support roller 4. The mixture will flow into the drainage trough 57 along the scraper and drip into the collection tank 62 along the opened conduit. The solvent mixture can be recovered and filtered, and then injected into the solution tank 64 for reuse. The inner wall of the mounting plate 53 is threadedly connected with a plurality of fixing bolts 54, and the fixing bolts 54 are threadedly connected to the clamping plate 56. If the strip scraper 55 is damaged, the staff can remove the strip scraper 55 by turning the fixing bolts 54 to increase the distance between the clamping plate 56 and the mounting plate 53, and replace the new strip scraper. 55 is placed between the mounting plate 53 and the clamping plate 56. The strip scraper 55 is clamped with the clamping plate 56 by tightening the fixing bolts 54, so that the strip scraper 55 is stably fixed on the mounting plate 53. The surface of the mounting plate 53 is fixedly connected with a drainage groove 57. The inner wall of the drainage groove 57 is provided with multiple ducts. After the strip scraper 55 scrapes the paint and solvent mixture remaining on the supporting roller 4, the mixed solution will flow along the strip scraper 55 into the drainage groove 57, so that the mixed liquid accurately drips into the collection tank 62.

[0029] like Figure 5As shown, the wetting mechanism 6 includes a hydraulic rod B61, which is rotatably connected to the fixed block 1, and the output ends of the two hydraulic rods B61 are rotatably connected to the collecting tank 62, and the collecting tank 62 is rotatably connected to the support shaft 2. The surface of the collecting tank 62 is fixedly connected to two connecting blocks 63, and the surfaces of the two connecting blocks 63 are fixedly connected to the solution tank 64. The inner wall of the solution tank 64 is slidably connected to a movable plate 67, and a plurality of through holes are provided on the surface of the movable plate 67. The surface of the movable plate 67 is fixedly connected to a wetting strip 68. The hydraulic rod B61 extends and pushes the collecting tank 62 to rotate along the support shaft 2, so that the wetting strip 68 in the solution tank 64 on the connecting block 63 fits with the supporting roller 4. The wetting strip 68 is made of a sponge material that is easy to absorb the solution. It absorbs the dissolved liquid from the solution tank 64 and coats it on the surface of the supporting roller 4, thereby achieving surface treatment of the supporting roller 4. The wetting strip 68 is pressed against the surface of the supporting roller 4 at the moment of being squeezed, and the spring 65 is squeezed and compressed. At this time, the telescopic rod 66 will also be compressed to support the compressed spring 65 to prevent the spring 65 from deforming and losing its elasticity, so that the wetting strip 68 can be adsorbed onto the solvent in the solution tank 64, and the wetting strip 68 can fit more closely to the surface of the supporting roller 4.

[0030] In the embodiment of the present invention, during the printing process, the printing roller 3 and the supporting roller 4 are driven to rotate by the motor of the equipment, thereby driving the metal sheet to pass between the printing roller 3 and the supporting roller 4, and the printing roller 3 presses the metal sheet to print. At the same time, the relatively rotating supporting roller 4 cooperates with the sodium acetate roller to drive the metal sheet to move. At this time, the hydraulic rod A51 and the hydraulic rod B61 are in an extended state, so that the strip scraper 55 and the wetting strip 68 are in a fitted state. The hydraulic rod B61 extends and pushes the collecting tank 62 to rotate along the support shaft 2, so that the wetting strip 68 in the solution tank 64 on the connecting block 63 fits with the supporting roller 4. The wetting strip 68 is easy to absorb the solution. The sponge material absorbs the solvent from the solution tank 64 and coats it on the surface of the supporting roller 4, so as to moisten the surface of the supporting roller 4 and decompose the hardened paint adhering to the supporting roller 4 for the convenience of scraping by the strip scraper 55 at the rear. The extension of the hydraulic rod A51 will push the transfer rod 52 to rotate along the support shaft 2, and the strip scraper 55 will move toward the supporting roller 4 and fit it to scrape the paint and solvent mixture adhering to the supporting roller 4. The solvent mixture will flow into the drainage groove 57 along the scraper and drip into the collection tank 62 along the opened conduit. The solvent mixture can be recovered and filtered, and then continue to be injected into the solution tank 64 for reuse.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A double-scraper wetting scraper cylinder device for a coating machine printing roller, characterized in that: include: Two fixed blocks (1) and a support shaft (2); A printing roller (3) is arranged above the support shaft (2) to realize printing operation on the metal sheet; The supporting roller (4) is arranged below the printing roller (3) and rotates in conjunction with the printing roller (3) to realize the conveying and printing of the metal sheet; A scraping mechanism (5) is provided on the surface of the fixed block (1) to clean the paint adhered to the supporting roller (4); The wetting mechanism (6) is arranged on the surface of the fixed block (1) to apply solvent to the supporting roller (4) so ​​as to facilitate scraping off the adhered paint.

2. A double-scraper wetting scraper cylinder device for a coating machine printing roller according to claim 1, characterized in that: The scraping mechanism (5) comprises a hydraulic rod A (51), the hydraulic rod A (51) being rotatably connected to a fixed block (1), an output end of the hydraulic rod A (51) being rotatably connected to a transfer rod (52), two transfer rods (52) being rotatably connected to a support shaft (2), ends of the two transfer rods (52) being fixedly connected to a mounting plate (53), a surface of the mounting plate (53) being slidably connected to a clamping plate (56), and a strip-shaped scraper (55) being detachably mounted on the surface of the mounting plate (53).

3. A double-scraper wetting scraper cylinder device for a coating machine printing roller according to claim 2, characterized in that: The inner wall of the mounting plate (53) is threadedly connected with a plurality of fixing bolts (54), and the fixing bolts (54) are threadedly connected to the clamping plate (56).

4. A double-scraper wetting scraper cylinder device for a coating machine printing roller according to claim 2, characterized in that: A drainage groove (57) is fixedly connected to the surface of the mounting plate (53), and a plurality of conduits are provided on the inner wall of the drainage groove (57).

5. The double-scraper wetting scraper cylinder device for the printing roller of a coating machine according to claim 2, characterized in that: The wetting mechanism (6) comprises a hydraulic rod B (61), the hydraulic rod B (61) being rotatably connected to a fixed block (1), the output ends of the two hydraulic rods B (61) being rotatably connected to a collecting trough (62), the collecting trough (62) being rotatably connected to a support shaft (2), the surface of the collecting trough (62) being fixedly connected to two connecting blocks (63), the surfaces of the two connecting blocks (63) being fixedly connected to a solution trough (64), the inner wall of the solution trough (64) being slidably connected to a movable plate (67), the surface of the movable plate (67) being provided with a plurality of through holes, and the surface of the movable plate (67) being fixedly connected to a wetting strip (68).

6. A double-scraper wetting scraper cylinder device for a coating machine printing roller according to claim 5, characterized in that: The inner wall of the solution tank (64) is fixedly connected to a plurality of telescopic rods (66), the ends of the telescopic rods (66) are fixedly connected to the movable plate (67), the arc surface of the telescopic rods (66) is sleeved with a spring (65), one end of the spring (65) is fixedly connected to the movable plate (67), and the other end of the spring (65) is fixedly connected to the solution tank (64).

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