A film printing machine convenient for printing gradient colors

Abstract

The utility model discloses a film printing machine that is convenient for printing gradient colors, relates to the field of film printing, and aims to solve the problem of excessive mixing in the prior art when mixing inks, resulting in two different colors of inks being mixed into another color of ink. The key points of the technical solution are: comprising a printing machine body, a printing plate roller is rotatably connected to the printing machine body, the printing plate roller is hollow, a plurality of through grooves are provided on the printing plate roller, a screen plate is fixedly connected to the through grooves, a driving component for driving the printing plate roller to rotate is provided on the printing machine body, and a mixing component for mixing inks to form gradient colors is provided in the printing plate roller. The utility model is a film printing machine that is convenient for printing gradient colors. When gradient color printing is required, ink mixing can be performed well so that the gradient effect is not inconsistent, thereby better beautifying packaging and preventing counterfeiting.

Description

Technical Field

[0001] The utility model relates to the field of film printing, and more specifically, to a film printing machine which is convenient for printing gradient colors. Background Art

[0002] Gradient color is a color that slowly transitions from dark to light or from one color to another. When gradient color is printed on film, it has the function of beautifying the packaging, and after printing, the film is not easy to imitate, thereby reducing counterfeit and shoddy products.

[0003] A patent with publication number CN217778170U discloses a gravure printing device capable of printing colorful gradient color effects, including an ink tank, a printing plate cylinder is arranged on the ink tank, a pressure roller is arranged above the printing plate cylinder, and a scraper is also arranged above the printing plate cylinder. The ink tank is divided into an ink storage tank and a roller tank. The ink storage tank is used for temporarily storing ink, and the roller tank is used for the contact between the printing plate cylinder and the ink. The ink storage tank is composed of a plurality of ink dividing tanks, and inks of different colors are arranged in the ink dividing tanks.

[0004] The gravure printing equipment in the above scheme can make the inks of different colors in the baffle roller groove penetrate each other, so that the formed gradient color state is relatively stable.

[0005] Although this gravure printing equipment can make the gradient color state relatively stable, it allows inks of different colors to contact and penetrate each other in the drum groove to form gradient color ink. Inks of different colors will contact each other over a large area for a long time in the ink groove, which can easily lead to excessive mixing of inks, causing two colors of ink to mix into another color of ink, resulting in a clear boundary between the two colors, resulting in poor printed gradient effect.

[0006] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0007] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a film printing machine that is convenient for printing gradient colors and can avoid excessive mixing of inks when mixing two inks, thereby improving the printing effect.

[0008] The above technical purpose of the utility model is achieved through the following technical solutions: a thin film printing machine that is convenient for printing gradient colors, including a printing machine body, a printing plate roller is rotatably connected to the printing machine body, the printing plate roller is hollow, a plurality of through grooves are opened on the printing plate roller, a screen plate is fixedly connected to the through grooves, a driving component for driving the printing plate roller to rotate is provided on the printing machine body, a mixing component for mixing ink to form gradient colors is provided in the printing plate roller, two ink cavities are opened on the printing machine body, and oil replenishing components for replenishing ink into the printing plate roller are provided on both sides of the printing machine body.

[0009] The utility model is further configured as follows: the driving assembly comprises a motor fixedly connected to the printing machine body, a gear fixedly connected to the motor output shaft, and a gear ring fixedly connected to a side of the printing plate roller close to the motor, and the gear is meshed with the gear ring.

[0010] The utility model is further configured as follows: the mixing component includes two partitions fixedly connected inside the printing plate roller, two storage frames rotatably connected between the two partitions, and a fixing rod fixedly connected to the storage frame on the side away from the motor, a through hole one is opened on the partition, the two storage frames are symmetrically arranged and fixedly connected to each other and there is a spacing between the storage frames and the inner wall of the printing plate roller, a through hole two is opened on the storage frame, and the fixing rod is fixedly connected to the printing machine body.

[0011] The utility model is further configured as follows: the two storage frames are fixedly connected with limiting rings, and the two partitions are provided with annular grooves for the limiting rings to rotate.

[0012] The utility model is further configured as follows: the oil replenishing assembly includes two symmetrically arranged ink suction tubes and two ink pumps, the two ink pumps are fixedly connected to both sides of the printing machine body, the two ink suction tubes are respectively fixedly connected to the input ends of the ink pumps on the same side and are conducted to the ink cavity, the printing plate roller is rotatably connected to one end close to the gear ring with a replenishing tube 1, the replenishing tube 1 and the printing plate roller are mutually conducted, the printing machine body is rotatably connected to the side away from the motor with a replenishing tube 2, the replenishing tube 2 penetrates the printing machine body and is mutually conducted with the printing plate roller, and the replenishing tube 1 and the replenishing tube 2 are respectively fixedly connected to the output ends of the ink pumps on the same side.

[0013] The utility model is further configured as follows: scrapers are fixedly connected to the upper sides of the two ink chambers, and one side of the scrapers is in contact with the printing plate roller.

[0014] The utility model is further configured as follows: a plurality of extrusion blocks are fixedly connected to the outer wall of the storage frame, and there are gaps between the extrusion blocks and the inner wall of the printing plate roller.

[0015] The utility model is further configured as follows: a scraper is slidably connected in the two ink cavities, and the scraper is in contact with the inner wall of the ink cavity.

[0016] In summary, the utility model has the following beneficial effects: when gradient color printing is required, the ink can be better mixed to make the gradient effect harmonious, and the excess ink can be recycled to make the printed gradient effect better, thereby better beautifying the packaging and preventing counterfeiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The utility model is a cross-sectional view Figure 1 ;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0020] Figure 4 The utility model is a cross-sectional view Figure 2 ;

[0021] Figure 5 The utility model is a cross-sectional view Figure 3 ;

[0022] Figure 6 for Figure 5 An enlarged schematic diagram of part B;

[0023] Figure 7 It is a cross-sectional view of the storage frame in the utility model.

[0024] In the figure: 1. printing machine body; 2. printing plate roller; 3. through groove; 4. screen plate; 5. ink chamber; 6. motor; 7. gear; 8. gear ring; 9. partition; 10. storage frame; 11. fixing rod; 12. through hole 1; 13. through hole 2; 14. limiting ring; 15. annular groove; 16. ink suction tube; 17. ink pump; 18. replenishing tube 1; 19. replenishing tube 2; 20. scraper; 21. extrusion block; 22. scraper. DETAILED DESCRIPTION

[0025] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] A film printing machine that is convenient for printing gradient colors, such as Figure 1-Figure 6As shown, the printing machine body 1 includes a printing plate roller 2 which is rotatably connected to the printing machine body 1. The printing plate roller 2 is hollow and can be filled with pure color ink. The printing plate roller 2 is provided with a plurality of through grooves 3 for the ink to flow out. A screen plate 4 is fixedly connected to the through grooves 3. The screen plate 4 has a plurality of small holes for separating ink for printing and can prevent pure color ink and mixed ink from directly flowing out of the through grooves 3. The printing machine body 1 is provided with a driving component for driving the printing plate roller 2 to rotate. A mixing component for mixing ink to form a gradient color is provided in the printing plate roller 2. Two ink cavities 5 are provided on the printing machine body 1. The printing machine body 1 is provided with a plurality of through grooves 3 for filling the ink with ink. The oil replenishing component filled in the printing plate roller 2 can start the driving component and the oil replenishing component when gradient color printing is required. When the driving component and the oil replenishing component are started at the same time, the two pure color inks of different colors will be mixed to form gradient ink. After the gradient ink is formed, the ink will continue to be replenished to make the ink precipitate from the screen plate 4. Then, the waste ink on the printing plate roller 2 is scraped off, and the film is attached to the outer wall of the printing plate roller 2. At this time, film printing can be carried out. In this way, the two pure color inks of different colors will not contact each other before printing, which avoids the two pure color inks of different colors from being completely mixed into another color, thereby improving the printing effect.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the driving assembly includes a motor 6 fixedly connected to the printing machine body 1, a gear 7 fixedly connected to the output shaft of the motor 6, and a gear ring 8 fixedly connected to the side of the printing plate roller 2 close to the motor 6. The gear 7 is meshed with the gear ring 8. After the motor 6 is turned on, the output shaft of the motor 6 will drive the gear 7 to rotate, and drive the gear ring 8 meshed with it to rotate, thereby driving the printing plate roller 2 to rotate.

[0028] like Figure 5-Figure 7As shown, the mixing assembly includes two partitions 9 fixedly connected inside the printing plate roller 2, two storage frames 10 rotatably connected between the two partitions 9, and a fixing rod 11 fixedly connected to the storage frame 10 on the side away from the motor 6. A through hole 12 is provided on the partition 9. The two storage frames 10 are symmetrically arranged and fixedly connected to each other and there is a gap between them and the inner wall of the printing plate roller 2. A through hole 2 13 is provided on the storage frame 10. The fixing rod 11 is fixedly connected to the printing machine body 1. The arrangement of the partition 9 can divide the printing plate roller 2 into three chambers, which are respectively used to store two different When the oil replenishing assembly is in operation, the two different colors of pure color ink will flow between the two partitions 9 and into the two storage frames 10, and then flow out from the two through holes 13 on the two storage frames 10 respectively. At this time, the motor 6 is started to rotate the plate roller 2 and the partition 9. Since the storage frame 10 is fixed to the printing machine body 1 by the fixing rod 11, the inner wall of the plate roller 2 will drive the two different colors of pure color ink to mix by friction between the two storage frames 10 and the plate roller 2, thereby completing the mixing operation.

[0029] like Figure 6 As shown, the two storage frames 10 are fixedly connected with limit rings 14, and the two partitions 9 are provided with annular grooves 15 for the limit rings 14 to rotate, which can prevent the pure color ink from flowing out of the gap between the partition 9 and the storage frame 10 in advance and affect the mixing of the ink.

[0030] like Figure 1-Figure 5 As shown, the oil replenishing assembly includes two symmetrically arranged ink suction tubes 16 and two ink pumps 17. The two ink pumps 17 are fixedly connected to both sides of the printing machine body 1. The two ink suction tubes 16 are respectively fixedly connected to the input ends of the ink pumps 17 on the same side and are connected to the ink cavity 5. The end of the printing plate roller 2 close to the gear ring 8 is rotatably connected to a replenishing tube 18. The replenishing tube 18 and the printing plate roller 2 are mutually connected. The side of the printing machine body 1 away from the motor 6 is rotatably connected to a replenishing tube 2 19. The replenishing tube 2 19 runs through the printing machine body 1 and the printing plate roller 2. The replenishing tube 18 and the replenishing tube 2 19 are connected to each other, and are fixedly connected to the output end of the ink pump 17 on the same side. Before printing, the ink pump 17 can be turned on, and the two pure color inks of two different colors are sucked out from the two ink chambers 5 and introduced into the spaces on both sides of the printing plate roller 2 through the two ink pumps 17, so that the pure color inks in the spaces on both sides and in the storage frames 10 on the corresponding sides are filled. When the printing work starts, the pure color inks of two different colors are continuously replenished, thereby completing the replenishment operation of the pure color ink.

[0031] like Figure 1 , Figure 2 , Figure 4As shown, a scraper 20 is fixedly connected to the upper side of the two ink chambers 5, and one side of the scraper 20 is in contact with the plate roller 2. When the plate roller 2 rotates, the excess pure color ink on the plate roller 2 can be scraped into the corresponding ink chamber 5, thereby saving ink.

[0032] like Figure 7 As shown, a plurality of extrusion blocks 21 are fixedly connected to the outer wall of the storage frame 10. There is a gap between the extrusion blocks 21 and the inner wall of the plate roller 2. When the inks are mixed, two pure color inks of different colors can be better mixed and the mixed ink can be conveniently squeezed out from the second through hole 13.

[0033] like Figure 1-Figure 4 As shown, a scraper 22 is slidably connected in the two ink chambers 5, and the scraper 22 is in contact with the inner wall of the ink chamber 5. When the pure color ink in the ink chamber 5 gradually decreases, the pure color ink on the inner wall of the ink chamber 5 is scraped off by the scraper 22's own weight, thereby saving more ink and extending the interval time for replenishing the ink chamber 5.

[0034] Working principle: before starting work, turn on the ink pump 17, and use the two ink pumps 17 to suck the two inks from the ink cavity 5 and introduce them into the spaces on both sides of the printing plate roller 2, so that the ink in the spaces on both sides and the storage frames 10 on the corresponding sides is filled. At this time, turn on the motor 6 and keep replenishing the pure color ink. When the printing plate roller 2 rotates, two pure color inks of different colors will flow out from the two through holes 13, so that the inner wall of the printing plate roller 2 drives the two pure color inks of different colors to rub and mix on the outer walls of the two storage frames 10, and the ink is continuously replenished at this time, and the pure color ink and the mixed ink will flow out from the through groove 3 at the same time. At this time, turn off the motor 6 and the ink pump 17, scrape off the ink waste on the printing plate roller 2, and then stick the film to the printing plate roller 2, turn on the motor 6 and the ink pump 17 to complete the gradient color printing work. In this way, the ink can be better mixed to make the gradient effect not inconsistent, and the excess ink can be recycled, so that the printed gradient effect is better, thereby better beautifying the packaging.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A film printer for printing gradient colors, comprising a printer body (1), characterized in that: A printing plate roller (2) is rotatably connected to the printing machine body (1); the printing plate roller (2) is hollow; a plurality of through slots (3) are provided on the printing plate roller (2); a screen plate (4) is fixedly connected to the through slots (3); a driving component for driving the printing plate roller (2) to rotate is provided on the printing machine body (1); a mixing component for mixing ink to form a gradient color is provided in the printing plate roller (2); two ink chambers (5) are provided on the printing machine body (1); and an oil replenishing component for replenishing ink into the printing plate roller (2) is provided on the printing machine body (1).

2. A film printer for printing gradient colors according to claim 1, characterized in that: The driving assembly comprises a motor (6) fixedly connected to a printing machine body (1), a gear (7) fixedly connected to an output shaft of the motor (6), and a gear ring (8) fixedly connected to a side of the printing plate roller (2) close to the motor (6), wherein the gear (7) meshes with the gear ring (8).

3. A film printer for printing gradient colors according to claim 2, characterized in that: The mixing assembly comprises two partitions (9) fixedly connected inside the printing plate roller (2), two storage frames (10) rotatably connected between the two partitions (9), and a fixing rod (11) fixedly connected to the storage frame (10) on the side away from the motor (6), the partition (9) is provided with a first through hole (12), the two storage frames (10) are symmetrically arranged and fixedly connected to each other and have a spacing with the inner wall of the printing plate roller (2), the storage frame (10) is provided with a second through hole (13), and the fixing rod (11) is fixedly connected to the printing machine body (1).

4. A film printer for printing gradient colors according to claim 3, characterized in that: The two storage frames (10) are fixedly connected with a limiting ring (14), and the two partitions (9) are provided with an annular groove (15) for the limiting ring (14) to rotate.

5. The thin film printer for printing gradient colors according to claim 2, characterized in that: The oil replenishing assembly comprises two symmetrically arranged ink suction tubes (16) and two ink pumps (17). The two ink pumps (17) are fixedly connected to the two sides of the printing machine body (1). The two ink suction tubes (16) are respectively fixedly connected to the input ends of the ink pumps (17) on the same side and are connected to the ink chamber (5). The end of the printing plate roller (2) close to the gear ring (8) is rotatably connected to a replenishing tube 1 (18). The replenishing tube 1 (18) and the printing plate roller (2) are connected to each other. The side of the printing machine body (1) away from the motor (6) is rotatably connected to a replenishing tube 2 (19). The replenishing tube 2 (19) runs through the printing machine body (1) and the printing plate roller (2) and are connected to each other. The replenishing tube 1 (18) and the replenishing tube 2 (19) are respectively fixedly connected to the output ends of the ink pumps (17) on the same side.

6. A film printer for printing gradient colors according to claim 5, characterized in that: The upper sides of the two ink chambers (5) are fixedly connected with scrapers (20), and one side of the scrapers (20) is in contact with the printing plate roller (2).

7. The thin film printer for printing gradient colors according to claim 3, characterized in that: A plurality of extrusion blocks (21) are fixedly connected to the outer wall of the storage frame (10), and gaps exist between the extrusion blocks (21) and the inner wall of the printing plate roller (2).

8. The thin film printer for printing gradient colors according to claim 5, characterized in that: A scraper (22) is slidably connected in the two ink chambers (5), and the scraper (22) is in contact with the inner wall of the ink chamber (5).

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