Multi-layer laminating device suitable for washing relief printing plate

Abstract

The utility model belongs to the field of label printing, and relates to manufacturing of washing relief printing plates, in particular to a multi-layer laminating device suitable for the washing relief printing plates, which comprises a spraying unit, a laminating pressure unit and a laminating platform unit. The spraying unit is positioned below the covering platform unit, and can move parallel to the covering platform unit and move perpendicular to the covering platform unit; the laminating pressure unit is positioned above the laminating platform unit and can move in parallel to the laminating platform unit; the covering platform unit comprises a covering platform and an overturning power shaft; the overturning power shaft is located on the bottom surface of the covering platform and can drive the covering platform to rotate by 180 degrees; and meanwhile, the covering platform is provided with a negative pressure exhaust hole. According to the device, single-piece coating or thin-layer coating can be adopted, a drying system is greatly shortened, and coating is completed on line.

Description

TECHNICAL FIELD

[0001] The utility model belongs to label printing field relates to the production of water washing relief plate especially relates to a kind of multilayer laminating device suitable for water washing relief plate. BACKGROUND

[0002] Water washing relief plate is mostly used in adhesive label, rotary relief printing, security printing, gold stamping, hot die, glazing and other printing. It is widely used in trademark, hose, seal, pipe, metal sheet and other printing, usually reaching 150-200 line / inch of high screen number.

[0003] Water washing relief plate includes polyester and metal base, and the thickness is generally 0.43mm-2.30mm, and the commonly used thickness is 0.73mm, 0.95mm and 2.30mm, and the structure includes upper film, photosensitive resin layer and lower film three layers, and the commonly used thickness of photosensitive resin layer is 0.43mm, 0.65mm and 2.00mm. In view of the characteristics of photosensitive resin layer of water washing relief plate, coating method is often used in the manufacturing process, and the upper and lower films can be laminated after complete drying, and the complete water washing relief plate is manufactured. The photosensitive resin layer is thick, which requires about 300 meters of drying system for continuous production, and the technology is difficult, the cost is large, the time is long, and the cleaning is difficult. SUMMARY

[0004] To solve the above problems, the photosensitive resin layer of water-based relief plate can be single-coated or thin-coated, which greatly shortens the drying system and completes the lamination online. The utility model provides a kind of multilayer laminating device suitable for water washing relief plate, which is simple in structure, small in investment, easy to operate and clean, and low in cost.

[0005] To achieve the above technical purposes, the technical scheme adopted by the present application is a kind of multilayer laminating device suitable for water washing relief plate, including spraying unit, laminating pressure unit and laminating platform unit;

[0006] The spraying unit is located below the laminating platform unit and can move parallel to the laminating platform unit and vertically to the laminating platform unit;

[0007] The laminating pressure unit is located above the laminating platform unit, can move parallel to the laminating platform unit, and can exert downward force on the laminating platform unit;

[0008] Among them, the laminating pressure unit includes laminating pressure roller and film support frame;The film support frame is installed above the laminating pressure roller, the laminating pressure roller is arranged on the laminating platform unit, the laminating pressure roller can move parallel to the laminating platform unit, and the laminating pressure roller can exert pressure on the laminating platform;

[0009] The lamination platform unit includes a lamination platform and a tilting power shaft; the tilting power shaft is located on the bottom surface of the lamination platform and can drive the lamination platform to rotate 180 degrees; at the same time, the lamination platform is equipped with a negative pressure suction port.

[0010] As an improved technical solution of this application, the spray unit includes

[0011] A compounding liquid pipeline is provided with a pressure valve, and the inlet end of the compounding liquid pipeline introduces the compounding liquid;

[0012] There are multiple pressure-distributing pipes, evenly distributed, and the inlet end of each pressure-distributing pipe is connected to the outlet end of the composite liquid pipe; the outlet end of each pressure-distributing pipe is connected to the spray pipe.

[0013] The spray pipe is arranged parallel to the laminating platform unit and can move parallel to and perpendicular to the laminating platform unit; a plurality of spray holes are distributed on the spray pipe.

[0014] As an improved technical solution of this application, the spray holes are arranged in three rows, which are respectively named the first row of spray holes, the second row of spray holes, and the third row of spray holes; wherein, the number of spray holes in the first row of spray holes and the third row of spray holes are the same, the number of spray holes in the second row of spray holes is greater than the number of spray holes in the first row of spray holes and the third row of spray holes, and any two adjacent second row of spray holes can form an equilateral triangle with the corresponding first row of spray holes or third row of spray holes.

[0015] As an improved technical solution of this application, the spraying unit further includes a lifting control rod and a transmission rail. The lifting control rod is arranged perpendicular to the coating platform unit; the transmission rail is parallel to the coating platform unit; the spraying pipe is supported by the lifting control rod, and the bottom of the lifting control rod can move along the transmission rail.

[0016] As an improved technical solution of this application, the diameter of the spray hole is 0.1-1cm.

[0017] As an improved technical solution of this application, the laminating pressure unit further includes a laminating pressure unit drive track, which is located at both ends of the bottom of the laminating pressure roller and is arranged parallel to the laminating platform.

[0018] As an improved technical solution of this application, the laminating pressure unit further includes a gap adjusting bolt. The adjusting bolt is installed on the bottom surface of the laminating pressure unit transmission track. Adjusting the gap adjusting bolt can adjust the height of the laminating pressure unit transmission track and adjust the gap between the laminating pressure roller and the laminating platform.

[0019] Beneficial effects

[0020] The application provides a multi-layer laminating device suitable for water-washing relief plate, comprising a spraying unit, a laminating pressure unit and a laminating platform unit; wherein the spraying unit provides laminating liquid to the laminating platform, the laminating liquid is a mixed solvent of water and alcohol (4:1) (prior art), and the purpose of providing the laminating liquid is to facilitate the adhesion of the laminating layer structure; the laminating pressure unit provides a pressure source to the laminating platform to discharge the bubbles existing between the two layers and make the two layers to be laminated closely adhere to each other.

[0021] The laminating platform itself has a negative pressure air extraction hole and can be turned over by 180 degrees, the purpose is to tightly fix the photosensitive resin layer to be laminated on the platform, and the photosensitive resin layer will not fall off after being turned over by 180 degrees, and will not shake back and forth during laminating; the photosensitive resin layer is sprayed and humidified, the spraying is upward, which prevents liquid beads from gathering and dropping on the photosensitive resin layer for a long time, affects the appearance of the plate material, and ensures that the water-washing relief plate has the effects of uniform appearance, no bubble or liquid bead trace.

[0022] In summary, the application provides a multi-layer laminating device suitable for water-washing relief plate, which realizes that the photosensitive resin layer of the water-based relief plate can be coated in single sheet or thin layer, greatly shortens the drying system, and completes the laminating outside the line. Therefore, the device of the application can be used for laminating the photosensitive resin layer and the upper and lower films, and laminating the photosensitive resin layer and the photosensitive resin layer, and is suitable for manufacturing single water-washing relief plate, and is especially suitable for multi-layer laminating of single water-washing relief plate. The water-based relief plate manufactured by using the device of the application has good quality and can be directly used for later plate making and printing. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective structural schematic view of the multi-layer laminating device suitable for water-washing relief plate of the application.

[0024] Figure 2 is a perspective structural schematic view of the multi-layer laminating device suitable for water-washing relief plate of the application Figure 1 .

[0025] Figure 3 is a structural schematic view of the spraying device in the multi-layer laminating device suitable for water-washing relief plate of the application.

[0026] Figure 4 is a structural schematic view of the spraying hole of the spraying device in the multi-layer laminating device suitable for water-washing relief plate of the application.

[0027] Figure 5 is a structural schematic view of the laminating pressure unit of the spraying in the multi-layer laminating device suitable for water-washing relief plate of the application.

[0028] In the figure: 1, spraying device; 11, air pressure valve; 12, pressure dividing pipeline; 13, spraying pipeline; 14, spraying hole; 15, lifting control rod; 16, transmission rail; 2, laminating platform unit; 21, laminating platform; 22, turnover power shaft; 23, negative pressure air extraction hole; 3, laminating pressure unit; 31, laminating pressure roller; 32, gap adjusting bolt; 33, film support frame; 34, laminating pressure unit transmission rail.

[0029] In the figure: the arrow represents the direction that can be moved. DETAILED DESCRIPTION

[0030] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and specific embodiments, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and cannot be understood as limiting the protection scope of the utility model, and the skilled in the art can make some non-essential improvements and adjustments according to the content of the utility model. In the utility model, unless otherwise explicitly specified and limited, the technical terms used in the application should be the common meanings understood by the technical personnel described in the utility model.

[0031] As shown in Figures 1-2 A multi-layer laminating device suitable for water-washing relief plate, comprising spraying device 1 (spraying unit) for applying laminating liquid on the surface of the relief plate, laminating platform (laminating platform unit 2) that can be turned over and pressure device (laminating pressure unit 3) for completing lamination.

[0032] The spraying device 1 for applying laminating liquid on the surface of the relief plate is located below the laminating platform unit 2, and the pressure device for completing lamination is located above the laminating platform unit 2.

[0033] Specifically, the spraying unit is located below the laminating platform unit 2 and can move parallel to the laminating platform unit 2 and move perpendicular to the laminating platform unit 2.

[0034] The laminating pressure unit 3 is located above the laminating platform unit 2, can move parallel to the laminating platform unit 2 and exerts downward force on the laminating platform unit 2.

[0035] The lamination pressure unit 3 includes a lamination pressure roller 31 and a film support frame 33. The film support frame 33 is installed above the lamination pressure roller 31. The lamination pressure roller 31 is arranged parallel to the lamination platform unit 2 and can move parallel to the lamination platform unit 2. During movement, the lamination pressure roller 31 applies pressure to the lamination platform unit 2. The working process is as follows: the film support frame 33 and the lamination pressure roller 31 are relatively fixed. Both ends of the lamination pressure roller 31 are supported by the lamination pressure unit drive rail 34 and can move horizontally along the drive rail 34. During lamination, the film support frame 33 and the lamination pressure roller 31 move together. The film support frame 33 supports one end of the film material to be laminated. During lamination, the film can be bonded to the photosensitive resin layer from one end to the other, which facilitates the expulsion of air bubbles between the film and the photosensitive resin layer. During lamination, the laminating pressure roller 31 can apply pressure to the film and the photosensitive resin layer, making them adhere more tightly and expelling air bubbles between them.

[0036] The bonding platform unit 2 includes a bonding platform 21 and a flipping power shaft 22; the flipping power shaft 22 is located on the bottom surface of the bonding platform 21 and can drive the bonding platform 21 to rotate 180 degrees; at the same time, the bonding platform 21 is equipped with a negative pressure suction hole 23.

[0037] like Figures 3-4 As shown, the spraying device 1 also includes a coating liquid pipeline, a pressure valve 11, a pressure dividing pipeline 12, a spray pipeline 13, a spray hole 14, a lifting control rod 15, and a transmission rail 16.

[0038] The coating liquid pipeline is equipped with a pressure valve 11, and the coating liquid is introduced into the inlet end of the pipeline. The coating liquid is a water:alcohol (4:1) mixture. The function of the coating liquid is to humidify the surface of the photosensitive resin layer, which facilitates the tight adhesion between the film layer and the photosensitive resin layer. In some embodiments, the coating liquid can be at least one of the solvent systems such as water, water-alcohol, alcohol, ester, and ketone.

[0039] There are multiple pressure-distributing pipes 12, which are evenly distributed, and the inlet end of each pressure-distributing pipe 12 is connected to the outlet end of the composite liquid pipe; the outlet end of each pressure-distributing pipe 12 is connected to the spray pipe 13.

[0040] The spray pipe 13 is arranged parallel to the coating platform unit 2 and can move parallel to and perpendicular to the coating platform unit 2; a plurality of spray holes 14 are distributed on the spray pipe 13.

[0041] In some embodiments, the spray holes 14 are arranged in three rows, named the first row of spray holes, the second row of spray holes, and the third row of spray holes, respectively. The first row of spray holes and the third row of spray holes have the same number of spray holes, while the second row of spray holes has more spray holes than the first row of spray holes and the third row of spray holes. Any two adjacent second row spray holes form an equilateral triangle with their corresponding first or second row spray holes. The aim is to achieve more uniform spraying. Testing has shown that a long slit, multiple rows of slits, a single row of small holes (spray holes), and three rows of small holes have all been tested. The three rows of small holes showed the best performance, resulting in more uniform humidification across the entire sheet. In some embodiments, the second row of spray holes has one more spray hole than the first row of spray holes and the third row of spray holes. In some embodiments, the diameter of the second row of spray holes is larger than the diameter of the first row of spray holes and the third row of spray holes.

[0042] The lifting control rod 15 is arranged perpendicular to the coating platform unit 2; the transmission rail 16 is parallel to the coating platform unit 2; the spray pipe 13 is supported by the lifting control rod 15, and the bottom of the lifting control rod 15 can move along the transmission rail 16.

[0043] The overall working mechanism of the spray unit is as follows:

[0044] Supported by the lifting control rod 15, the height of the spray pipe 13 relative to the laminating platform 21 can be adjusted. The bottom of the lifting control rod 15 moves along the transmission track 16, driving the spray pipe 13, the pressure-distributing pipe 12, and the laminating liquid pipe to move together. During this process, the laminating liquid pipe is long enough and uses a flexible pipe to ensure that the spray unit can move freely without being stretched during the overall movement. As the spray pipe 13 moves, it can evenly spray the laminating liquid onto the laminating platform 21.

[0045] like Figure 5 As shown, the laminating pressure unit 3 includes a laminating pressure roller 31, a gap adjusting bolt 32, a film support frame 33, and a laminating pressure unit transmission track 34.

[0046] The film support frame 33 is located directly above the laminating pressure roller 31. One end of the upper and lower films or photosensitive resin layers to be laminated is first pressed onto the photosensitive resin layer on the laminating platform by the laminating pressure roller 31, and the other end is placed on the film support frame 33.

[0047] The bonding pressure unit drive track 34 is located at both ends of the bottom of the bonding pressure roller 31 and is set parallel to the bonding platform 21.

[0048] The laminating pressure unit 3 further comprises a gap adjusting bolt 32 installed on the bottom surface of the transmission rail of the laminating pressure unit 3. The height of the transmission rail 34 of the laminating pressure unit can be adjusted by adjusting the gap adjusting bolt 32, so that the gap between the laminating pressure roller 31 and the laminating platform 21 can be adjusted. Specifically, the height of the transmission rail 34 of the laminating pressure unit can be adjusted by adjusting the gap adjusting bolt 32, so that the gap between the laminating pressure roller 31 and the laminating platform 21 can be adjusted. In practical application, the gap is adjusted according to the thickness of the laminated layer, for example, the gap is 0.775 mm when the black film is 0.125 mm thick and the photosensitive resin layer is 0.65 mm thick; for example, the gap is 0.95 mm when the support body is 0.30 mm thick and the photosensitive resin layer is 0.65 mm thick.

[0049] Embodiment 1

[0050] A multi-layer laminating device suitable for water-washing relief plates, comprising a spraying device 1 for applying laminating liquid on the surface of the relief plate, a laminating platform unit 2 that can be flipped, and a pressure device for completing the lamination. The spraying device 1 for applying laminating liquid on the surface of the relief plate is located below the entire device, the laminating platform unit 2 that can be flipped is located in the middle of the entire device, and the pressure device (laminating pressure unit 3) for completing the lamination is located above the entire device.

[0051] The spraying device 1 further comprises an air pressure valve 11, a pressure distribution pipeline 12, a spraying pipeline 13, a spraying hole 14, a lifting control rod 15, and a transmission rail 16. The laminating liquid can be at least one of water, water alcohol, alcohol, ester, ketone, etc.

[0052] The air pressure valve 11 is located at the frontmost pipeline position of the spraying device 1, i.e., the laminating liquid pipeline. The amount of laminating liquid required is different for different materials of the photosensitive resin layer, upper film, lower film, or photosensitive resin layer. Here, the spraying amount of the laminating liquid can be controlled by controlling the air pressure valve 11.

[0053] The pressure distribution pipeline 12 is connected to the laminating liquid pipeline at one end and to the spraying pipeline 13 at the other end, dispersing the spraying of the laminating liquid to different positions of the spraying pipeline 13, and then spraying the laminating liquid through the spraying hole 14.

[0054] The spraying pipeline 13 is generally 5-20 cm long, and the spraying hole 14 is located on the spraying pipeline 13. The spraying hole 14 has three rows of small holes arranged in an equilateral triangle, with the side length of the triangle being generally 1-5 cm. The middle main hole and the two side auxiliary holes are arranged in a gap, with the main hole diameter being generally 0.1-1 cm and the auxiliary hole diameter being generally 0.1-0.5 cm.

[0055] The spraying pipeline 13 is supported by the lifting control rod 15, and the height of the spraying pipeline 13 and the laminating platform 21 can be adjusted.

[0056] The transmission rail 16 is connected with the bottom of the lifting control rod 15, and drives the air pressure valve 11, the pressure distribution pipeline 12, the spraying pipeline 13 and the lifting control rod 15 to move integrally, and the moving speed is generally 0.2-2 m / min, and the moving is carried out at a constant speed.

[0057] As shown in Figure 1 , the overturned laminating platform unit 2 further comprises a laminating platform 21 and an overturning power shaft 22.

[0058] The laminating platform 21 is provided with a negative pressure suction hole 23, and the photosensitive resin layer to be laminated is tightly adsorbed on the laminating platform 21, and the laminating platform 21 is overturned by 180° through the overturning power shaft 22. The photosensitive resin layer to be laminated is vertically downward, and is sprayed upward through the laminating liquid spraying, and is overturned by 180° in the reverse direction through the overturning power shaft 22, and returns to the upward position.

[0059] As shown in Figure 3 , the completed laminating pressure device (laminating pressure unit 3) further comprises a laminating pressure roller 31, a gap adjusting bolt 32, a film support frame 33 and a laminating pressure unit transmission rail 34.

[0060] The adjustable gap of the gap adjusting bolt 32 is generally 0.3-3 mm. According to the total thickness of the photosensitive resin layer to be laminated and the upper and lower films or the two layers of photosensitive resin layer, the gap between the laminating pressure roller 31 and the laminating platform 21 is adjusted to be consistent with the total thickness.

[0061] The film support frame 33 is located directly above the laminating pressure roller 31. One end of the upper and lower films or the photosensitive resin layer to be laminated is pressed on the photosensitive resin layer on the laminating platform 21 by the laminating pressure roller 31, and the other end is placed on the film support frame 33.

[0062] The laminating pressure unit transmission rail 34 is located at the bottom of both ends of the laminating pressure roller 31, and drives the laminating pressure roller 31, the gap adjusting bolt 32 and the film support frame 33 to move integrally during laminating, and the moving speed is generally 0.2-1 m / min, and the moving is carried out at a constant speed.

[0063] The photosensitive resin layer to be laminated is placed on the laminating platform 21 in a vacuum adsorption state, the platform is overturned by 180°, the spraying device is raised in height, the spraying hole 14 uniformly sprays the laminating liquid, the spraying device 1 is lowered, the platform is overturned by 180° in the reverse direction, the film material to be laminated is prepared, and the laminating is pressurized to complete the first laminating. According to the above steps, the operation can be repeated for multiple times, and the production of the water-washing relief plate is completed. The water-washing relief plate produced by the device has good flatness, uniform thickness and no bubbles and other impurities on the surface, meets the use requirement, and can be directly used for printing after the later plate making process.

[0064] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. The technical features of the above-described embodiments can be combined in any manner, and the present application is not limited to the above-described embodiments. When the combination of technical solutions is contradictory or unachievable, it is considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application. It should be noted that, without departing from the overall concept and principle of the present application, the technical solutions and concepts of the present application can be replaced or changed by those skilled in the art, and some changes and improvements can be made. These should also be considered within the protection scope of the present application.

Claims

1. A multi-layer lamination device suitable for water washable letterpress printing, characterized in that, The laminating device comprises a spraying unit, a laminating pressure unit and a laminating platform unit; The spraying unit is located below the laminating platform unit and can move parallel to and perpendicularly to the laminating platform unit; The laminating pressure unit is located above the laminating platform unit, can move parallel to the laminating platform unit and can exert a downward force on the laminating platform unit; The laminating pressure unit comprises a laminating pressure roller and a film support frame; the film support frame is installed above the laminating pressure roller, the laminating pressure roller is arranged on the laminating platform unit, the laminating pressure roller can move parallel to the laminating platform unit and can exert a pressure on the laminating platform; The laminating platform unit comprises a laminating platform and a turnover power shaft; the turnover power shaft is located on the bottom surface of the laminating platform and can drive the laminating platform to rotate by 180 degrees; meanwhile, the laminating platform is provided with negative pressure suction holes.

2. A multi-layer lamination device suitable for water washable letterpress according to claim 1, characterized in that, The spraying unit comprises The laminating liquid pipeline is provided with a gas pressure valve, and the liquid inlet end of the laminating liquid pipeline is connected to the laminating liquid; The pressure distribution pipeline is provided with a plurality of pipelines which are uniformly distributed and connected to the liquid outlet end of the laminating liquid pipeline; the liquid outlet end of the pressure distribution pipeline is connected to the spraying pipeline; The spraying pipeline is arranged parallel to the laminating platform unit and can move parallel to and perpendicularly to the laminating platform unit; the spraying pipeline is provided with a plurality of spraying holes.

3. A multi-layer lamination device suitable for water washable letterpress according to claim 2, characterized in that, The spraying holes are arranged in three parallel rows, namely, a first row of spraying holes, a second row of spraying holes and a third row of spraying holes; the number of the spraying holes in the first row of spraying holes is the same as that in the third row of spraying holes, the number of the spraying holes in the second row of spraying holes is more than that in the first row of spraying holes and the third row of spraying holes, and any two adjacent second row of spraying holes and the corresponding first row of spraying holes or third row of spraying holes can form an equilateral triangle.

4. A multi-layer lamination device suitable for water washable letterpress according to claim 2, wherein, The spraying unit further comprises a lifting control rod and a transmission rail; the lifting control rod is arranged perpendicularly to the laminating platform unit; the transmission rail is arranged parallel to the laminating platform unit; the spraying pipeline is supported by the lifting control rod, and the bottom of the lifting control rod can move along the transmission rail.

5. A multi-layer lamination device suitable for water washable letterpress according to claim 2, wherein, The diameter of the spraying hole is 0.1-1cm.

6. A multi-layer lamination device suitable for water washable letterpress according to claim 1, wherein, The laminating pressure unit further comprises a laminating pressure unit transmission rail; the laminating pressure unit transmission rail is located at the bottom of the two ends of the laminating pressure roller and is arranged parallel to the laminating platform.

7. A multi-layer lamination device suitable for water washable letterpress according to claim 6, wherein, The laminating pressure unit further comprises a gap adjusting bolt; the gap adjusting bolt is installed on the bottom surface of the laminating pressure unit transmission rail; adjusting the gap adjusting bolt can adjust the height of the laminating pressure unit transmission rail and the gap between the laminating pressure roller and the laminating platform.

Images