Electrostatic device for printing machine

Abstract

The utility model discloses a printing machine electrostatic device, which belongs to the field of printing, and includes an electrostatic generating mechanism, wherein the electrostatic generating mechanism includes an electrostatic generator, a flat plate electrode is arranged on the output end of the electrostatic generator, a fixing frame is arranged outside the flat plate electrode, a driving mechanism is arranged on the rear side of the fixing frame, and the driving mechanism is arranged on the rear side of the fixing frame. The printing machine electrostatic device can clean the ink adhered to the flat plate electrode by arranging a reciprocating cleaning mechanism outside the flat plate electrode of the electrostatic device. When the flat plate electrode is arranged on one side of a printing roller for use, some ink will splash on the flat plate electrode as the printing roller is continuously used. The ink is cleaned by the cleaning mechanism to avoid the ink on the flat plate electrode causing poor charge transfer effect, thereby ensuring that the charge can be smoothly transferred to the printing roller for charging, thereby ensuring that the printing roller will not be missing printing ink when in use.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to an electrostatic device for a printing machine. Background Art

[0002] Gravure printing is a technology that uses ink to print patterns and text on substrates. In gravure printing, the ink is attached to the printing roller, and then the printing roller is printed on the substrate. During the printing process, the ink on the printing roller cannot be completely attached to the paper, which will cause part of the ink of the printed pattern to be missing. In order to avoid the problem of missing printing ink, the printing roller is generally charged with static electricity through an electrostatic device on the printing machine. When the surface of the printing roller is charged with static electricity, it will adsorb the printing material, so that the printing material can fit tightly on the printing roller. In this way, during the printing process, the ink or other printing materials can be transferred to the printing material more evenly and accurately, thereby obtaining a high-quality printing effect.

[0003] The electrostatic device on the printing press generates static electricity through an electrostatic generator, and then transfers the charge to the printing roller through the electrode on one side of the printing roller by electrostatic induction. Since the flat electrode of the electrostatic device is located on one side of the printing roller, during the continuous use of the printing roller, part of the ink on the printing roller will splash onto the flat electrode. The increase in ink on the flat electrode will hinder the transfer of charge, resulting in the charge of the flat electrode cannot be effectively transferred to the printing roller, which will cause the printing roller to still have ink missing during printing. Therefore, improvements are now made to the electrostatic device of the printing press. Utility Model Content

[0004] The utility model aims to propose an electrostatic device for a printing machine in order to solve the problem that ink is easily adhered to the electrodes of the existing electrostatic device for a printing machine, which makes charge transfer difficult and further causes the electrostatic device to be unable to avoid loss of printing ink.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technologies: a printing press electrostatic device, comprising:

[0006] An electrostatic generating mechanism, the electrostatic generating mechanism comprising an electrostatic generator, a flat plate electrode is arranged on the output end of the electrostatic generator, and a fixing frame is arranged outside the flat plate electrode;

[0007] A driving mechanism, wherein the driving mechanism is arranged on the rear side of the fixing frame;

[0008] The cleaning mechanism is attached to the front side of the flat electrode and is fixedly connected to the driving end of the driving mechanism. The cleaning mechanism reciprocates on the front side of the flat electrode through the driving mechanism to clean the ink adhered to the flat electrode.

[0009] As a further description of the above technical solution: the cleaning mechanism includes a U-shaped mounting frame, a sponge pad is arranged on the mounting frame, and the outer surface of the sponge pad is wrapped with an electrode cleaning cloth;

[0010] The mounting frame is slidably connected to the outer side surface of the fixing frame, and the electrode cleaning cloth is pressed against the outer surface of the flat plate electrode through the sponge pad.

[0011] As a further description of the above technical solution: the driving mechanism includes a mounting seat fixed to the rear side of the fixing frame, an electric screw is arranged inside the mounting seat, an inspection cover is arranged on the rear side of the mounting seat, and the upper and lower sides of the mounting seat are provided with sliding grooves connected to the interior of the mounting seat.

[0012] As a further description of the above technical solution: both ends of the mounting frame are fixedly connected with connecting rods, and the connecting rods pass through the sliding grooves and are fixedly connected with the sliding seat of the electric screw.

[0013] As a further description of the above technical solution: a connecting line is arranged between the electrostatic generator and the flat electrode, and a pair of mounting rods are arranged on the fixing frame.

[0014] As a further description of the above technical solution: the flat plate electrode is arranged on one side of the printing roller through a mounting rod, and the flat plate electrode is parallel to the printing roller along the axial direction of the printing roller.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] By arranging a reciprocating cleaning mechanism outside the flat electrode of the electrostatic device, the ink adhered to the flat electrode can be cleaned. When the flat electrode is arranged on one side of the printing roller for use, some ink will splash on the flat electrode with continuous use of the printing roller. The ink is cleaned by the cleaning mechanism to avoid the ink on the flat electrode causing poor charge transfer effect, thereby ensuring that the charge can be smoothly transferred to the printing roller for charging, thereby ensuring that the printing roller will not be missing printing ink when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram of the structure of the electrostatic generating mechanism provided according to an embodiment of the utility model is shown;

[0019] Figure 3 A partial structural schematic diagram according to an embodiment of the utility model is shown;

[0020] Figure 4A schematic diagram of the structure of a driving mechanism provided according to an embodiment of the utility model is shown;

[0021] Figure 5 A structural schematic diagram of a cleaning mechanism provided according to an embodiment of the utility model is shown.

[0022] Legend:

[0023] 1. Electrostatic generating mechanism; 11. Electrostatic generator; 12. Fixing frame; 13. Flat electrode; 14. Connecting wire; 15. Mounting rod;

[0024] 2. Driving mechanism; 21. Mounting seat; 22. Electric screw; 23. Inspection cover; 24. Slideway;

[0025] 3. Cleaning mechanism; 31. Mounting frame; 32. Sponge pad; 33. Electrode cleaning cloth; 34. Connecting rod. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] Reference Figure 1-Figure 5 A printing machine electrostatic device provided in this embodiment includes an electrostatic generating mechanism 1, which includes an electrostatic generator 11. A flat electrode 13 is arranged on the output end of the electrostatic generator 11, a fixing frame 12 is arranged outside the flat electrode 13, a driving mechanism is arranged on the rear side of the fixing frame 12, a cleaning mechanism is fixedly connected to the driving end of the driving mechanism 2, and the cleaning mechanism 3 is attached to the front side of the flat electrode 13. The cleaning mechanism 3 reciprocates on the front side of the flat electrode 13 through the driving mechanism 2, so as to clean the ink adhered to the flat electrode 13.

[0028] When the electrostatic generator 11 generates static charges, these charges will be transferred to the printing roller through the flat electrode 13 in the fixing frame 12, so that the printing roller carries the corresponding charge, and the printing roller with the electrostatic charge is brought into close contact with the paper. Due to the electrostatic attraction, the ink on the printing roller will be adsorbed to the surface of the paper; in the process of the printing roller contacting with the paper, the ink is transferred from the printing roller to the paper, and the electrostatic effect makes it easier for the ink to detach from the printing roller and adhere to the paper; after the ink is transferred to the paper, the printing roller is separated from the paper by adjusting the gap between the printing roller and the paper or applying a reverse charge, so that the ink is firmly printed on the paper. When the printing roller is in use, part of the ink will splash on the flat electrode 13. At this time, the cleaning mechanism 3 is driven by the driving mechanism 2 to move on the surface of the flat electrode 13 to clean the ink adhered to the surface of the flat electrode 13, so as to avoid the poor charge transfer effect caused by the ink on the flat electrode 13.

[0029] Specifically, refer to Figure 5 The cleaning mechanism 3 includes a U-shaped mounting frame 31, on which a sponge pad 32 is arranged, and the outer surface of the sponge pad 32 is wrapped with an electrode cleaning cloth 33, and the surface of the flat electrode 13 is cleaned by the electrode cleaning cloth 33 on the surface of the sponge pad 32, so that the ink adhered to the surface of the flat electrode 13 is removed when the electrostatic device is used;

[0030] The mounting frame 31 is slidably connected to the outer side of the fixing frame 12, and the electrode cleaning cloth 33 is pressed against the outer surface of the flat electrode 13 through the sponge pad 32. The cleaning cloth 33 pressed against the surface of the flat electrode 13 can effectively clean the ink on the surface of the flat electrode 13, so that the electrode cleaning cloth 33 has sufficient pressure to wipe the ink.

[0031] Specifically, refer to Figure 4 The driving mechanism 2 includes a mounting seat 21 fixed to the rear side of the fixing frame 12, an electric screw 22 is arranged inside the mounting seat 21, an inspection cover 23 is arranged on the rear side of the mounting seat 21, and the upper and lower sides of the mounting seat 21 are provided with a slide groove 24 connected to the inside of the mounting seat 21. The electric screw 22 in the mounting seat 21 is used to drive the cleaning mechanism 3 to move. The electric screw 22 can ensure that the cleaning mechanism 3 can move back and forth, thereby effectively wiping and removing the ink on the outer surface of the flat electrode 13.

[0032] Among them, both ends of the mounting frame 31 are fixedly connected with connecting rods 34, and the connecting rods 34 pass through the slide groove 24 and are fixedly connected with the slide seat of the electric screw 22. The connecting rods 34 are used to realize the fixed connection between the cleaning mechanism 3 and the slide seat of the electric screw 22, thereby ensuring that the electric screw 22 can drive and move the cleaning mechanism 3.

[0033] Among them, a connecting line 14 is arranged between the electrostatic generator 11 and the flat electrode 13, a pair of mounting rods 15 are arranged on the fixing frame 12, the flat electrode 13 is arranged on one side of the printing roller through the mounting rods 15, and the flat electrode 13 is parallel to the printing roller along the axial direction of the printing roller. The flat electrode 13 fixed on one side of the printing roller through the mounting rods 15 can transfer the charge to the printing roller, so that the printing roller can carry static charge, thereby avoiding the problem of ink loss during printing.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing press electrostatic device, characterized in that: include: An electrostatic generating mechanism (1), the electrostatic generating mechanism (1) comprising an electrostatic generator (11), a flat plate electrode (13) being arranged at the output end of the electrostatic generator (11), and a fixing frame (12) being arranged outside the flat plate electrode (13); A driving mechanism (2), wherein the driving mechanism (2) is arranged on the rear side of the fixing frame (12); A cleaning mechanism (3) is attached to the front side of the flat electrode (13), and the cleaning mechanism (3) is fixedly connected to the driving end of the driving mechanism (2). The cleaning mechanism (3) moves back and forth on the front side of the flat electrode (13) through the driving mechanism (2) to clean the ink adhered to the flat electrode (13).

2. A printing press electrostatic device according to claim 1, characterized in that: The cleaning mechanism (3) comprises a U-shaped mounting frame (31), a sponge pad (32) is arranged on the mounting frame (31), and the outer surface of the sponge pad (32) is wrapped with an electrode cleaning cloth (33); The mounting frame (31) is slidably connected to the outer side surface of the fixing frame (12), and the electrode cleaning cloth (33) is pressed against the outer surface of the flat electrode (13) through the sponge pad (32).

3. A printing press electrostatic device according to claim 2, characterized in that: The driving mechanism (2) comprises a mounting seat (21) fixed to the rear side of the fixing frame (12), an electric screw rod (22) is arranged inside the mounting seat (21), an inspection cover (23) is arranged on the rear side of the mounting seat (21), and a slide groove (24) connected to the interior of the mounting seat (21) is provided on both the upper and lower side surfaces of the mounting seat (21).

4. A printing press electrostatic device according to claim 3, characterized in that: Both ends of the mounting frame (31) are fixedly connected with connecting rods (34), and the connecting rods (34) pass through the sliding groove (24) and are fixedly connected to the sliding seat of the electric screw rod (22).

5. The electrostatic device for a printing press according to claim 1, characterized in that: A connecting line (14) is provided between the electrostatic generator (11) and the flat electrode (13), and a pair of mounting rods (15) are provided on the fixing frame (12).

6. A printing press electrostatic device according to claim 5, characterized in that: The flat plate electrode (13) is arranged on one side of the printing roller via a mounting rod (15), and the flat plate electrode (13) is parallel to the printing roller along the axial direction of the printing roller.

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