Double-sided intaglio printing press

Abstract

The utility model relates to a double-sided gravure printing machine which comprises a gravure printing machine and further comprises a gravure printing mechanism, the gravure printing mechanism comprises a first ink fountain arranged at the lower end of the other side of the gravure printing machine, a first ink roller is arranged above the first ink fountain, and a first gravure printing roller is arranged above the other side of the first ink roller. A first gravure roller is arranged on one side of the first embossing roller, a first scraper is arranged on one side of the first gravure roller and matched with the first gravure roller, a material belt passes through the space between the first gravure roller and the first embossing roller, the first gravure roller and the first embossing roller are matched to conduct gravure operation on one face of the material belt, and the two faces of the material belt are printed through the gravure mechanism. The two faces of the material belt are dried through the same drying machine while the occupied area is not increased, the number of drying assemblies is reduced, the cost is saved, and printing ink scraped down by a second scraper is collected by arranging a connecting plate and a blocking plate.

Description

Technical Field

[0001] The utility model relates to the technical field of gravure printing machines, in particular to a double-sided gravure printing machine. Background Art

[0002] Gravure printing machine is a special equipment used for gravure printing. Gravure printing is an ancient printing technology that carves out images and texts on a plate made of metal or other hard materials, then fills the concave parts with ink, and then transfers the ink to the printed matter through pressure. Gravure printing machines are usually used to print stamps, banknotes, trademarks, decorations, etc., because the patterns they print have high anti-counterfeiting and aesthetics.

[0003] Existing gravure printing machines can only print on one side of the material belt when in use. When printing on both sides of the material belt, it is necessary to increase the printing components and drying components of the gravure printing machine. When the working components are increased, the floor space of the gravure printing machine will be expanded, thereby reducing the number of machines installed in the factory. When the method of printing on both sides of the material belt at the same time is adopted, since the ink has just been printed on the material belt and the drying operation has not been performed, the material belt moves on the transmission roller, and the printed images and texts on the material belt may be worn and stick to the transmission roller.

[0004] For this purpose, a double-sided gravure printing machine is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a double-sided gravure printing machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-sided gravure printing machine, including a gravure printing machine, a feeding roller is arranged at the lower part of the gravure printing machine, a winding roller is arranged at the lower part of one side of the gravure printing machine, a material belt is wound on the surface of the feeding roller, and also includes a gravure printing mechanism, the gravure printing mechanism includes a first ink tank arranged at the lower end of the other side of the gravure printing machine, a first ink roller is arranged above the first ink tank, a first gravure printing roller is arranged above the other side of the first ink roller, a first scraper is arranged on one side of the first gravure printing roller, the first scraper is arranged in cooperation with the first gravure printing roller, and the material belt is rolled up from the first gravure printing roller. A gravure roller passes between a first embossing roller, and the first gravure roller cooperates with the first embossing roller to perform gravure printing on one side of the material strip, a second embossing roller is arranged above one side of the first embossing roller, a second gravure roller is arranged below the second embossing roller, a second ink roller is arranged below one side of the second gravure roller, a second ink groove is arranged below the second ink roller, a second scraper is arranged on the other side of the second gravure roller, and the second scraper is arranged in cooperation with the second gravure roller, the material strip passes between the second embossing roller and the second gravure roller, and the second embossing roller cooperates with the second gravure roller to perform gravure printing on the other side of the material strip.

[0007] Preferably, a connecting plate and a blocking plate are fixedly connected above both ends of the second ink groove, respectively, and the upper end of the blocking plate is arranged above the second scraper.

[0008] Preferably, a dryer is fixedly connected to the middle of the other end of the gravure printing machine, and the dryer is arranged above the second embossing roller.

[0009] Preferably, a first steering shaft is arranged inside the dryer, and a second steering shaft is arranged on one side of the first steering shaft.

[0010] Preferably, two groups of first fixed blocks are rotatably connected at the front and rear ends of the first steering shaft, and the upper ends of the two groups of first fixed blocks are fixedly connected to the inner upper end of the second steering shaft. Two groups of second fixed blocks are rotatably connected at the front and rear ends of the second steering shaft, and the upper ends of the two groups of second fixed blocks are fixedly connected to the inner upper end of the second steering shaft.

[0011] Preferably, three groups of through slots are provided at the lower end of the second steering shaft, and one group of through slots is provided at the side end of the second steering shaft, and the material belt moves in and out through the multiple groups of through slots.

[0012] Preferably, a plurality of groups of transmission rollers are arranged inside the gravure printing machine.

[0013] Preferably, a guide roller is provided at the lower end of a group of driving rollers, and the material strip is driven by multiple groups of driving rollers and wound onto the outer side of the winding roller through the guide roller.

[0014] Beneficial effects of the utility model:

[0015] Compared with the prior art, the double-sided gravure printing machine provided by the utility model prints on both sides of the material belt by setting a gravure printing mechanism. Both sides of the material belt are dried by the same dryer without increasing the floor space, thereby reducing the number of drying components and saving costs.

[0016] The connecting plate and the blocking plate are provided to collect the ink scraped off by the second scraper, thereby preventing the ink from splashing onto the material belt located below the second ink groove when the second scraper scrapes off the ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a double-sided gravure printing machine according to an embodiment of the utility model;

[0019] Figure 2 A double-sided gravure printing machine according to an embodiment of the present invention Figure 1 Schematic diagram of the three-dimensional structure of the cross section at AA in the middle;

[0020] Figure 3 This is a schematic diagram of the internal three-dimensional structure of a double-sided gravure printing machine according to an embodiment of the utility model;

[0021] Figure 4 A double-sided gravure printing machine according to an embodiment of the present invention Figure 2 Enlarged view of point B in the middle.

[0022] The markings in the figure are: 1. gravure printing machine; 2. feeding roller; 3. material belt; 4. first ink roller; 5. first ink tank; 6. first gravure roller; 7. first scraper; 8. first embossing roller; 9. dryer; 10. first steering shaft; 11. first fixed block; 12. second embossing roller; 13. second gravure roller; 14. second ink roller; 15. second ink tank; 16. second scraper; 17. blocking plate; 18. connecting plate; 19. second steering shaft; 20. second fixed block; 21. transmission roller; 22. guide roller; 23. winding roller. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0026] like Figures 1 to 4As shown, a double-sided gravure printing machine includes a gravure printing machine 1, a feeding roller 2 is arranged at the lower part of the gravure printing machine 1, a winding roller 23 is arranged at the lower part of one side of the gravure printing machine 1, a material belt 3 is wound on the surface of the feeding roller 2, and a gravure printing mechanism is also included, the gravure printing mechanism includes a first ink tank 5 arranged at the lower end of the other side of the gravure printing machine 1, a first ink roller 4 is arranged above the first ink tank 5, a first gravure roller 6 is arranged above the other side of the first ink roller 4, a first scraper 7 is arranged on one side of the first gravure roller 6, the first scraper 7 is arranged in cooperation with the first gravure roller 6, the material belt 3 passes between the first gravure roller 6 and the first embossing roller 8, and the first The gravure roller 6 cooperates with the first embossing roller 8 to perform gravure printing on one side of the material strip 3. A second embossing roller 12 is arranged above one side of the first embossing roller 8, and a second gravure roller 13 is arranged below the second embossing roller 12. A second ink roller 14 is arranged below one side of the second gravure roller 13, and a second ink tank 15 is arranged below the second ink roller 14. A second scraper 16 is arranged on the other side of the second gravure roller 13, and the second scraper 16 is arranged in cooperation with the second gravure roller 13. The material strip 3 passes between the second embossing roller 12 and the second gravure roller 13, and the second embossing roller 12 and the second gravure roller 13 cooperate to perform gravure printing on the other side of the material strip 3.

[0027] Specifically, Figure 1 and Figure 4 As shown, a connecting plate 18 and a blocking plate 17 are fixedly connected above both ends of the second ink tank 15, and the upper end of the blocking plate 17 is arranged above the second scraper 16. A dryer 9 is fixedly connected to the middle of the other end of the gravure printing machine 1, and the dryer 9 is arranged above the second embossing roller 12. A first steering shaft 10 is arranged inside the dryer 9, and a second steering shaft 19 is arranged on one side of the first steering shaft 10. Two groups of first fixed blocks 11 are rotatably connected to the front and rear ends of the first steering shaft 10, and the upper ends of the two groups of first fixed blocks 11 are fixedly connected to the inner upper end of the second steering shaft 19. Two groups of second fixed blocks 20 are rotatably connected to the front and rear ends of the second steering shaft 19, and the upper ends of the two groups of second fixed blocks 20 are fixedly connected to the inner upper end of the second steering shaft 19. Three groups of through grooves are arranged at the lower end of the second steering shaft 19, and a group of through grooves are arranged at the side end of the second steering shaft 19. The material belt 3 moves in and out through the multiple groups of through grooves.

[0028] During operation, the feeding roller 2 is started, the material belt 3 moves, the first ink roller 4 is started, and the ink is evenly applied to the surface of the first gravure roller 6, and then the first gravure roller 6 rotates, and the first gravure roller 6 cooperates with the first scraper 7 to scrape off the excess ink on the surface of the first gravure roller 6, and the first embossing roller 8 rotates to cooperate with the first gravure roller 6 to print on one end surface of the moving material belt 3. After one side of the material belt 3 is printed, the material belt 3 passes through the through groove of the dryer 9 and enters the interior of the dryer 9 for drying. After the dried material belt 3 is turned by the first steering shaft 10, it comes out of the through groove of the dryer 9. The material belt 3 after coming out passes through the second embossing roller 12 and the second gravure roller 13 to print on the other side of the material belt 3, and the second scraper 16 Excess ink on the second gravure roller 13 is scraped off, and the second scraper 16 is arranged above the second gravure roller 13 to prevent ink from splashing when the second gravure roller 13 scrapes. After the other side of the material strip 3 is printed, it enters the interior of the dryer 9 again through the slot of the dryer 9 for drying. By setting up a gravure printing mechanism, both sides of the material strip 3 are printed. Without increasing the occupied area, both sides of the material strip 3 are dried by the same dryer 9, reducing the number of drying components and thus saving costs. By setting a connecting plate 18 and a blocking plate 17, the ink scraped off by the second scraper 16 is collected to prevent the ink from splashing onto the material strip 3 located below the second ink groove 15 when the second scraper 16 scrapes the ink.

[0029] like Figure 1 and Figure 4 As shown, a plurality of transmission rollers 21 are arranged inside the gravure printing machine 1, and a guide roller 22 is arranged at the lower end of a group of transmission rollers 21. The material strip 3 is driven by the plurality of transmission rollers 21 and wound onto the outer side of the winding roller 23 through the guide roller 22.

[0030] During operation, the material belt 3 enters the interior of the dryer 9 for secondary drying, then turns through the second turning shaft 19 to come out from the side end of the dryer 9, and then moves along multiple sets of transmission rollers 21, and finally turns through the guide roller 22 to be wound onto the winding roller 23.

[0031] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0032] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A double-sided gravure printing machine, comprising a gravure printing machine (1), wherein a feeding roller (2) is arranged at the lower part of the gravure printing machine (1), a winding roller (23) is arranged at the lower part of one side of the gravure printing machine (1), and a material strip (3) is wound on the surface of the feeding roller (2), characterized in that: It also includes a gravure printing mechanism, the gravure printing mechanism including a first ink tank (5) arranged at the lower end of the other side of the gravure printing machine (1), a first ink roller (4) arranged above the first ink tank (5), a first gravure roller (6) arranged above the other side of the first ink roller (4), a first scraper (7) arranged on one side of the first gravure roller (6), the first scraper (7) and the first gravure roller (6) being arranged in cooperation, the material belt (3) passing between the first gravure roller (6) and the first embossing roller (8), the first gravure roller (6) and the first embossing roller (8) cooperating to perform gravure printing on one side of the material belt (3); A second embossing roller (12) is arranged above one side of the first embossing roller (8), a second gravure roller (13) is arranged below the second embossing roller (12), a second ink roller (14) is arranged below one side of the second gravure roller (13), a second ink tank (15) is arranged below the second ink roller (14), a second scraper (16) is arranged on the other side of the second gravure roller (13), the second scraper (16) and the second gravure roller (13) are arranged in cooperation, the material strip (3) passes between the second embossing roller (12) and the second gravure roller (13), and the second embossing roller (12) and the second gravure roller (13) cooperate to perform gravure printing on the other side of the material strip (3).

2. A double-sided gravure printing machine as claimed in claim 1, characterized in that: A connecting plate (18) and a blocking plate (17) are fixedly connected above both ends of the second ink tank (15), respectively, and the upper end of the blocking plate (17) is arranged above the second scraper (16).

3. A double-sided gravure printing machine as claimed in claim 2, characterized in that: A dryer (9) is fixedly connected to the middle of the other end of the gravure printing machine (1), and the dryer (9) is arranged above the second embossing roller (12).

4. A double-sided gravure printing machine as claimed in claim 3, characterized in that: A first steering shaft (10) is arranged inside the drying machine (9), and a second steering shaft (19) is arranged on one side of the first steering shaft (10).

5. A double-sided gravure printing machine as claimed in claim 4, characterized in that: Two groups of first fixing blocks (11) are rotatably connected at the front and rear ends of the first steering shaft (10), and the upper ends of the two groups of the first fixing blocks (11) are fixedly connected to the inner upper end of the second steering shaft (19). Two groups of second fixing blocks (20) are rotatably connected at the front and rear ends of the second steering shaft (19), and the upper ends of the two groups of the second fixing blocks (20) are fixedly connected to the inner upper end of the second steering shaft (19).

6. A double-sided gravure printing machine as claimed in claim 5, characterized in that: The lower end of the second steering shaft (19) is provided with three groups of through slots, and the side end of the second steering shaft (19) is provided with a group of through slots, and the material belt (3) moves in and out through the multiple groups of through slots.

7. A double-sided gravure printing machine as claimed in claim 6, characterized in that: A plurality of groups of transmission rollers (21) are arranged inside the gravure printing machine (1).

8. A double-sided gravure printing machine as claimed in claim 7, characterized in that: A guide roller (22) is arranged at the lower end of a group of the transmission rollers (21), and the material strip (3) is driven by the multiple groups of transmission rollers (21) and is wound onto the outer side of the winding roller (23) through the guide roller (22).

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