WO2024040855A1

WO2024040855A1 - New printing multi-ink-fountain gravure plate

Info

Publication number: WO2024040855A1
Application number: PCT/CN2023/070581
Authority: WO
Inventors: 邓戊申
Original assignee: 江门市恒业彩印有限公司
Priority date: 2022-08-22
Filing date: 2023-01-05
Publication date: 2024-02-29
Also published as: CN115891402A

Abstract

Disclosed in the present invention is a new printing multi-ink-fountain gravure plate, comprising a base, wherein an ink cartridge is provided on an upper end face of the base, a first ink fountain is provided on one side of the ink cartridge, and a second ink fountain is provided on the other side of the ink cartridge; and support plates are provided on both the two sides of the base, a first electric motor is provided at a lower portion of the support plate on one side, a rotor shaft of the first electric motor is connected to a first printing gravure plate, a lower portion of the first printing gravure plate is inserted into the first ink fountain, a second printing gravure plate is provided on one side of the first printing gravure plate, a lower portion of the second printing gravure plate is inserted into the second ink fountain, and a printing electric eye is provided on the support plate on the other side. Light-colored transparent ink is injected into a first ink fountain, deep-colored ink is injected into a second ink fountain, and when a first printing gravure plate and a second printing gravure plate cooperate with an impressing roller to perform a printing operation, a printing electric eye positions a deep-colored pattern printed by the second printing gravure plate, so as to position a printing pattern of the first printing gravure plate.

Description

A new type of printing multi-ink gravure plate

Technical field

The invention relates to the technical field of printing gravure plates, specifically a new type of printing multi-ink gravure plate.

Background technique

In gravure printing machines in the prior art, the lower half of the rotating printing plate is immersed in the ink in the ink tank during operation, and the ink is continuously taken away. Therefore, ink must be added to the ink tank from time to time during operation. When printing high-viscosity ink with the current conventional ink tank structure, the printing plate rotates at high speed and brings a large amount of ink behind the ink tank scraper, causing the ink to leak backward, causing serious pollution and making cleaning difficult. At the same time, the ink is affected by the centrifugal force of the printing plate. The ink tank cannot flow back to the ink inlet position, and the ink supply speed is much slower than the printing plate taking away the ink, resulting in a low liquid level in the ink inlet position and less ink immersion in the printing plate, seriously affecting the printing quality and production efficiency.

For example, the Chinese patent with announcement number CN214354802U discloses an ink tank for a gravure printing machine, which includes a main ink tank, an ink return tank connected to the main ink tank, a printing plate rotatably arranged on the main ink tank, and a corresponding printing plate. Squeegee, the main ink tank is provided with an ink supply tube at one end away from the scraper, a tray is provided between the main ink tank and the printing plate, and an ink supply channel is formed between the tray and the printing plate. An ink return channel that is not affected by the rotation of the printing plate is formed between the tray and the main ink tank, so that the ink can flow back in time during the rotation of the printing plate and will not overflow backward and on both sides in large quantities, causing unnecessary waste.

However, the above scheme has the following shortcomings.

In the above-mentioned patent document, an ink return channel is formed between the tray and the main ink tank, which is not affected by the rotation of the printing plate, so that the ink can flow back in time during the rotation of the printing plate. However, when the ink of the printed pattern is close to transparent, the above-mentioned patent The printed light spots cannot be searched by the printing electric eye, so the printed product cannot be effectively positioned, which affects the efficiency of the printing operation.

To this end, we introduce a new type of printing multi-ink gravure plate.

technical problem

The object of the present invention is to provide a new type of printing multi-ink groove gravure plate to solve the problems raised in the above background technology.

Technical solutions

In order to achieve the above object, the present invention provides the following technical solution: a new type of printing multi-ink groove gravure plate, including a base, the upper end surface of the base is provided with an ink storage box, and one side of the ink storage box is provided with a first ink tank, so The other side of the ink storage box is provided with a second ink tank. Both sides of the base are provided with support plates. The upper part of the support plate on one side is provided with a second motor. The rotor shaft of the second motor is connected with An impression roller, the lower part of which is tangent to the top ends of the first printing gravure plate and the second printing gravure plate.

A first motor is provided at the lower part of one side support plate. The rotor shaft of the first motor is connected to a first printing gravure plate. The lower part of the first printing gravure plate is inserted into a first ink tank. The first ink tank A rubber roller is provided in the inner rotation, and the rubber roller is tangent to the first printing gravure plate.

A second printing gravure plate is provided on one side of the first printing gravure plate, the lower part of the second printing gravure plate is inserted into the second ink tank, and a printing electric eye is provided on the support plate on the other side.

The inner wall of the ink storage box is provided with a first ink scraper and a second ink scraper. The extended end of the first ink scraper abuts against the first printing gravure plate, and the extended end of the second ink scraper against the second printing gravure plate.

A first ink cartridge is provided on one side of the first ink tank. The bottom end of the first ink cartridge is connected to the first ink tank through a first pipe. A first control valve is provided on the first pipe. The second A second ink tank is provided on one side of the ink tank. The bottom end of the second ink tank is connected to the second ink tank through a second pipe. A second control valve is provided on the second pipe.

beneficial effects

Compared with the prior art, the beneficial effects of the present invention are: the present invention injects light-colored transparent ink into the first ink tank, injects dark-colored ink into the second ink tank, and then synchronously starts the first motor and the second ink tank. The motor drives the first printing gravure plate and the second printing gravure plate to cooperate with the impression roller to perform the printing operation. The printing electric eye searches and locates the dark pattern printed by the second printing gravure plate, and simultaneously completes the pattern printing of the first printing gravure plate. Positioning to achieve the positioning of the printed pattern of light-colored transparent ink.

During the printing process of the present invention, the excess ink on the first printing gravure plate and the second printing gravure plate is scraped down and flowed back to the corresponding first ink tank and the second ink tank through the first ink scraper plate and the second ink scraper plate respectively. The ink in the first ink tank and the second ink tank can be added to the first ink tank and the second ink tank through the first pipe and the second pipe respectively by opening the first control valve and the second control valve regularly. , providing sufficient ink for the first printing gravure plate and the second printing gravure plate to maintain the quality of printing.

Description of drawings

Figure 1 is a schematic front view of the present invention.

Figure 2 is a schematic front cross-sectional view of the present invention.

Figure 3 is a schematic left cross-sectional view of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-3. The present invention provides a technical solution: a new type of printing multi-ink gravure plate, including a base 1. An ink storage box 2 is fixedly installed on the upper end surface of the base 1 through bolts. There is an ink storage box 2 on the right side of the ink storage box 2. The first ink tank 3 and the second ink tank 4 are provided on the left side of the ink storage box 2. The left and right sides of the base 1 are equipped with support plates 5 fixed by bolts. The upper part of the right support plate 5 is installed with a second ink tank 4 fixed by bolts. Motor 12. The model of the second motor 12 is TRC28-60. The input end of the second motor 12 is connected to the control end of the printing press control panel through a wire. The rotor shaft of the second motor 12 is keyed to the impression roller 13. The impression roller The other end of 13 is rotatably arranged on the left support plate 5, and the lower part of the impression roller 13 is tangent to the tops of the first printing gravure plate 7 and the second printing gravure plate 8.

The lower part of the right support plate 5 is fixedly installed with a first motor 6 through bolts. The model of the first motor 6 is TRC28-60. The input end of the first motor 6 is connected to the control end of the printing press control panel through a wire. The first motor 6 The rotor shaft is keyed with a first printing gravure plate 7. The lower part of the first printing gravure plate 7 is inserted into the first ink tank 3. A rubber roller 11 is rotated in the first ink tank 3. The rubber roller 11 is in contact with the first printing gravure plate 7. cut, the bubbles in the ink on the first printing gravure plate 7 can be squeezed out, thereby improving the printing quality.

A second printing gravure plate 8 is provided on the left side of the first printing gravure plate 7. The first printing gravure plate 7 and the second printing gravure plate 8 are stamped as one piece. The extended end of the second printing gravure plate 8 is rotatably mounted on the left support plate 5. , the lower part of the second printing gravure plate 8 is inserted into the second ink tank 4, and a printing electric eye 9 is installed on the left support plate 5 through bolts. The model of the printing electric eye 9 is CS-16-5T, and the input end of the printing electric eye 9 is connected by a wire. Connected to the control end of the printing press control panel, the information input end of the printing sensor 9 is connected to the information input end of the printing press control panel through a signal line.

A first squeegee 10 and a second squeegee 101 are installed behind the inner wall of the ink storage box 2 through bolts. The extended end of the first squeegee 10 abuts against the first printing gravure 7, and the second squeegee 101 The extended end of 101 abuts on the second printing gravure plate 8 .

A first ink tank 14 is fixedly installed on the front of the first ink tank 3 with bolts. The bottom end of the first ink tank 14 is connected with the first ink tank 3 through a first pipe 15 . A third ink tank 14 is fixedly installed on the first pipe 15 with bolts. A control valve 16. The model of the first control valve 16 is S4V210-08. The input end of the first control valve 16 is connected to the control end of the printing press control panel through a wire. One side of the second ink tank 4 is fixed with a second ink tank through bolts. The bottom end of the second ink tank 17 and the second ink tank 17 is connected to the second ink tank 4 through the second pipe 18. The second pipe 18 is fixed with a second control valve 19 through bolts. The model of the second control valve 19 is S4V210. -08. The input end of the second control valve 19 is connected to the control end of the printing press control panel through a wire.

The working principle of this embodiment is as follows: by injecting light-colored transparent ink into the first ink tank 3 and dark ink into the second ink tank 4, the first motor 6 and the second motor 12 are then started simultaneously to drive the second ink tank 3. The first printing gravure plate 7 and the second printing gravure plate 8 cooperate with the impression roller 13 to roll and perform the printing operation. The printing electric eye 9 searches and locates the dark pattern printed by the second printing gravure plate 8, and simultaneously completes the printing of the first printing gravure plate 7. The pattern is positioned to achieve the positioning of the printed pattern of light-colored transparent ink.

During the printing operation, the excess ink on the first printing gravure plate 7 and the second printing gravure plate 8 is scraped down and flowed back to the corresponding first ink tank 3 and the corresponding ink tank 3 through the first squeegee plate 10 and the second ink squeegee plate 101 respectively. In the second ink tank 4, the first control valve 16 and the second control valve 19 can also be opened regularly to add the ink in the first ink cartridge 14 and the second ink cartridge 17 through the first pipe 15 and the second pipe 18 respectively. The first ink tank 3 and the second ink tank 4 provide sufficient ink for the first printing gravure plate 7 and the second printing gravure plate 8 to maintain the printing quality.

Claims

A new type of printing multi-ink groove gravure plate includes a base (1), which is characterized in that: an ink storage box (2) is provided on the upper end surface of the base (1), and a first ink storage box (2) is provided on one side of the ink storage box (2). Ink tank (3), a second ink tank (4) is provided on the other side of the ink storage box (2), support plates (5) are provided on both sides of the base (1), and the support plate (5) is provided on one side. The lower part of the plate (5) is provided with a first motor (6). The rotor shaft of the first motor (6) is connected with a first printing gravure plate (7). The lower part of the first printing gravure plate (7) is inserted into the first motor (6). In the ink tank (3), a second printing intaglio (8) is provided on one side of the first printing gravure (7), and the lower part of the second printing intaglio (8) is inserted into the second ink tank (4). A printed electric eye (9) is provided on the support plate (5) on the other side.
A new type of printing multi-ink groove gravure plate according to claim 1, characterized in that: the inner wall of the ink storage box (2) is provided with a first ink scraper (10) and a second ink scraper (101). The extended end of the first squeegee (10) is against the first printing gravure (7), and the extended end of the second squeegee (101) is against the second printing intaglio (8). superior.
A new type of printing multi-ink tank gravure plate according to claim 1, characterized in that: a rubber roller (11) is rotated in the first ink tank (3), and the rubber roller (11) is connected to the first ink tank (3). A printing gravure (7) tangent.
A new type of printing multi-ink groove gravure plate according to claim 1, characterized in that: a second motor (12) is provided on the upper part of the support plate (5) on one side, and the rotor of the second motor (12) An impression roller (13) is connected to the shaft, and the lower part of the impression roller (13) is tangent to the tops of the first printing gravure plate (7) and the second printing gravure plate (8).
A new type of printing multi-ink tank gravure plate according to claim 1, characterized in that: a first ink-adding box (14) is provided on one side of the first ink tank (3), and the first ink-adding box (14) The bottom end of the ink tank is connected with the first ink tank (3) through a first pipe (15), and a first control valve (16) is provided on the first pipe (15).
A new type of printing multi-ink tank gravure plate according to claim 1, characterized in that: a second ink-adding box (17) is provided on one side of the second ink tank (4), and the second ink-adding box (17) The bottom end of the ink tank is connected with the second ink tank (4) through a second pipe (18), and a second control valve (19) is provided on the second pipe (18).