Ink fountain structure and intaglio printing equipment

Abstract

The utility model discloses intaglio printing equipment and an ink fountain structure, and the ink fountain structure comprises an ink fountain main body, a spraying device arranged on the side wall of a main groove body of the ink fountain main body, a printing plate arranged in the main groove body of the ink fountain main body, and an auxiliary ink fountain arranged at the bottom in the main groove body, the auxiliary ink fountain is used for storing and supplying printing ink to the printing plate, and the spraying device is used for supplying printing ink to the part, not matched with the auxiliary ink fountain, of the printing plate. The spraying device is arranged on the side wall of the main groove body of the ink groove structure, the ink amount of the portion, not making contact with the auxiliary ink groove, of the printing plate is further increased, the adhesion amount of ink in the gravure ink groove and the adhesion amount of ink on the printing plate can be greatly increased, and the problems that the ink supply amount is insufficient when the bottom of 01103 soft blue box pieces is yellow in current gravure production, and the printing quality is poor are solved. The printing ink transfer effect in the printing process is improved, and the pattern plate quality defect generated in the gravure printing process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to an ink tank structure and gravure printing equipment. Background Art

[0002] Intaglio printing is to cover the entire surface of the printing plate with ink, and then use a special scraper to remove the ink from the blank part, so that the ink remains only in the cells of the image part, and then transfer the ink to the surface of the substrate under a large pressure to obtain a printed product. Intaglio printing belongs to direct printing. The image part of the printing plate is concave, and the degree of concave varies with the level of the image, while the blank part of the printing plate is convex and on the same plane. Due to the special effect of gravure printing, it has a wide range of applications.

[0003] However, in the structure of the existing gravure printing machine, the auxiliary ink groove structure in the ink groove structure is relatively shallow, and there is a relative movement offset between the ink distribution roller and the printing plate during the printing process, resulting in insufficient ink supply when producing the base yellow, and the effect of ink transfer and ink rolling is poor, resulting in the problem of pattern defects in the image and text.

[0004] Therefore, it is necessary to solve the problem of insufficient ink supply during the current gravure printing production of yellow bottom. Utility Model Content

[0005] The utility model aims to provide an ink tank structure and a gravure printing device, which can increase the adhesion of ink in the gravure ink tank and the ink on the printing plate, solve the problem of insufficient ink supply when the bottom of the soft blue box film is yellow in gravure printing production, improve the ink transfer effect during the printing process, and avoid the quality defects of the flower plate produced during the gravure printing process.

[0006] In order to solve the above technical problems, an embodiment of the utility model provides an ink tank structure, including an ink tank body, a spray device arranged on the side wall of the main tank body of the ink tank body, a printing plate arranged in the main tank body of the ink tank body, and a sub-ink tank arranged at the bottom of the main tank body, the sub-ink tank is used to store and supply ink to the printing plate, the spray device is used to supply ink to the part of the printing plate not connected to the sub-ink tank, and also includes a second sub-ink tank arranged in the inner groove of the sub-ink tank, which is used to store and supply ink to the printing plate, and also includes an ink return device arranged on the side wall of the main tank body, which is used to return the ink scraped from the printing plate by a scraper to the ink tank body.

[0007] Wherein, the ink return device and the spray device are located on different sides of the printing plate.

[0008] Wherein, the ink return device and the spray device are at the same height on the side wall of the ink tank body.

[0009] It also includes a slide rail arranged on the side wall of the ink tank body and a positioning slider arranged on the slide rail and capable of sliding on the slide rail. The printing plate drives the positioning slider to transfer and evenly grind the ink by rotating.

[0010] Wherein, the positioning slider is a cylindrical positioning slider or a spherical positioning slider.

[0011] Wherein, it also includes ink limiting blocks arranged at both ends of the printing plate, which are used to prevent the ink in the ink tank body from flowing out of the ink tank body.

[0012] Wherein, the slide rail is a single-track slide rail or a double-track slide rail.

[0013] In addition, an embodiment of the present application further provides a gravure printing device, comprising the ink tank structure as described above.

[0014] The gravure printing device and ink tank structure provided by the embodiment of the utility model have the following advantages compared with the prior art:

[0015] The gravure printing equipment and ink tank structure provided by the embodiment of the utility model can further increase the amount of ink in the part of the printing plate that is not in contact with the auxiliary ink tank by arranging a spray device on the side wall of the main tank body of the ink tank structure, thereby greatly improving the adhesion amount of ink in the gravure ink tank and the ink on the printing plate, solving the problem of insufficient ink supply when producing yellow bottom in gravure printing, improving the ink transfer effect in the printing process, and avoiding the quality defects of the flower plate produced in the gravure printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the front view of an embodiment of the ink tank structure provided by the utility model;

[0018] Figure 2 A side view structural schematic diagram of an embodiment of the ink tank structure provided by the utility model;

[0019] Among them, 10 is the ink tank body, 20 is the printing plate, 30 is the spray device, 11 is the auxiliary ink tank, 40 is the ink return device, 21 is the scraper, 50 is the slide rail, 60 is the positioning slide block, and 70 is the ink limit block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please refer to Figure 1-2 , Figure 1 A schematic diagram of the front view of an embodiment of the ink tank structure provided by the utility model; Figure 2 A side view structural schematic diagram of an embodiment of the ink tank structure provided by the utility model.

[0022] In a specific embodiment, the ink tank structure includes an ink tank body 10, a spray device 30 arranged on the side wall of the main tank body of the ink tank body 10, a printing plate 20 arranged in the main tank body of the ink tank body 10, and an auxiliary ink tank 11 arranged at the bottom of the main tank body, the auxiliary ink tank 11 is used to store and supply ink to the printing plate 20, and the spray device 30 is used to supply ink to the part of the printing plate 20 that is not in contact with the auxiliary ink tank 11.

[0023] By arranging a spray device 30 on the side wall of the main tank body of the ink tank structure, the amount of ink in the portion of the printing plate 20 that is not in contact with the auxiliary ink tank 11 can be further increased, which can greatly increase the amount of ink attached to the gravure ink tank and the ink on the printing plate 20, solve the problem of insufficient ink supply during the current gravure production of yellow bottom, improve the ink transfer effect during the printing process, and avoid the quality defects of the flower plate produced during the gravure printing process.

[0024] In order to further increase the ink supply, in one embodiment, the ink tank structure further includes a second auxiliary ink tank arranged in the inner tank of the auxiliary ink tank 11 for storing and supplying ink to the printing plate 20 .

[0025] A second auxiliary ink tank is provided for storing and supplying ink to the printing plate 20 to increase the ink supply. The present application does not limit the setting of the second auxiliary ink tank. It can be an independent setting, or the inner groove of the auxiliary ink tank 11 can be deepened so that the amount of ink that the printing plate 20 can be immersed in the auxiliary ink tank 11 can be increased, or other settings can be used. The present application does not limit the size of the second auxiliary ink tank.

[0026] While ensuring that the amount of immersion on the surface of the printing plate 20 is increased, in order to prevent the mutual influence between the amount of ink scraped from the surface of the printing plate 20 by the scraper 21 and the amount of ink in the portion of the printing plate 20 that has not passed through the scraper 21, in one embodiment, the ink tank structure also includes an ink return device 40 arranged on the side wall of the main tank body, which is used to return the ink scraped from the printing plate 20 by the scraper 21 to the ink tank body 10.

[0027] By providing the ink return device 40, it is ensured that the ink left by the scraper 21 returns to the ink tank through another path, thereby avoiding the influence of the ink return on the ink on the surface of the printing plate 20, improving the printing quality and the utilization efficiency of the ink.

[0028] The present application does not limit the ink return device 40 and its setting position. Preferably, the ink return device 40 and the spray device 30 are located on different sides of the printing plate 20, and the ink return device 40 and the spray device 30 are at the same height on the side wall of the ink tank body 10.

[0029] Furthermore, in the prior art, an ink distribution roller is used for ink distribution, but due to its fixed position, the ink distribution effect is poor. In one embodiment, the ink tank structure also includes a slide rail 50 arranged on the side wall of the ink tank body 10 and a positioning slider 60 arranged on the slide rail 50 and capable of sliding on the slide rail 50. The printing plate 20 drives the positioning slider 60 to transfer and distribute the ink by rotating.

[0030] The positioning slider 60 is provided to replace the function of the ink distribution roller. According to the product production process requirements, the appropriate position of the positioning slider 60 on the slide rail 50 is determined (the slider can move on the track of the slide rail 50). The rotation of the printing plate 20 (active) drives the rotation of the positioning slider 60 (passive) to achieve the function of ink transfer and ink distribution, thereby improving the printing effect.

[0031] The present application does not limit the shape and size of the positioning slider 60 , and the positioning slider 60 is a cylindrical positioning slider or a spherical positioning slider, or a positioning slider 60 of other structures.

[0032] After increasing the amount of ink in the entire ink tank system, in order to prevent excessive ink from flowing out of the ink tank, wasting ink and polluting the environment, in one embodiment, the ink tank structure also includes ink limit blocks 70 arranged at both ends of the printing plate 20, which are used to prevent the ink in the ink tank body 10 from flowing out of the ink tank body 10.

[0033] By designing and installing ink limit blocks 70 at both ends of the printing plate 20, the ink limit blocks 70 can be adjusted in height according to the different ink amounts of different products printed by the gravure printing machine, thereby preventing the ink inside the ink tank from flowing out and improving the printing quality.

[0034] The present application does not limit the type and configuration of the slide rail 50 , and the slide rail 50 may be a single-track slide rail or a double-track slide rail, or a slide rail 50 of other structures.

[0035] In addition, an embodiment of the present application further provides a gravure printing device, comprising the ink tank structure as described above.

[0036] Since the gravure printing device, including the ink tank structure as described above, has the same beneficial effects, this application will not elaborate on this.

[0037] To sum up, the gravure printing equipment and ink tank structure provided by the embodiment of the utility model, by arranging a spray device on the side wall of the main tank body of the ink tank structure, further increases the amount of ink in the part of the printing plate that is not in contact with the auxiliary ink tank, which can greatly increase the amount of ink attached to the gravure ink tank and the ink on the printing plate, solves the current problem of insufficient ink supply during gravure production of yellow bottom, improves the ink transfer effect during printing, and avoids the quality defects of the flower plate caused during the gravure printing process.

[0038] The gravure printing device and ink tank structure provided by the utility model are introduced in detail above. The principle and implementation method of the utility model are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An ink tank structure, characterized in that: The ink tank body comprises an ink tank main body, a spray device arranged on the side wall of the main tank body of the ink tank main body, a printing plate arranged in the main tank body of the ink tank main body, and a sub-ink tank arranged at the bottom of the main tank body, wherein the sub-ink tank is used to store and supply ink to the printing plate, the spray device is used to supply ink to the part of the printing plate not contacting the sub-ink tank, and further comprises a second sub-ink tank arranged in the inner tank of the sub-ink tank, which is used to store and supply ink to the printing plate, and further comprises an ink return device arranged on the side wall of the main tank body, which is used to return the ink scraped from the printing plate by a scraper to the ink tank main body.

2. The ink tank structure according to claim 1, characterized in that: The ink return device and the spray device are located on different sides of the printing plate.

3. The ink tank structure according to claim 2, characterized in that: The ink return device and the spray device are at the same height on the side wall of the ink tank body.

4. The ink tank structure according to claim 3, characterized in that: It also includes a slide rail arranged on the side wall of the ink tank body and a positioning slider arranged on the slide rail and capable of sliding on the slide rail. The printing plate drives the positioning slider to transfer and evenly grind the ink by rotating.

5. The ink tank structure according to claim 4, characterized in that: The positioning slide block is a cylindrical positioning slide block or a spherical positioning slide block.

6. The ink tank structure according to claim 5, characterized in that: It also includes ink limiting blocks arranged at both ends of the printing plate, which are used to prevent the ink in the ink slot body from flowing out of the ink slot body.

7. The ink tank structure according to claim 6, characterized in that: The slide rail is a single-track slide rail or a double-track slide rail.

8. A gravure printing device, characterized in that: The invention comprises an ink tank structure as claimed in any one of claims 1 to 7.

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