CN214984087U

CN214984087U - Conductive brush

Info

Publication number: CN214984087U
Application number: CN202120683299.0U
Authority: CN
Inventors: 刘胜贵; 王亚宁; 陈建德
Original assignee: Qujing Fupai Color Printing Co ltd
Current assignee: Qujing Fupai Color Printing Co ltd
Priority date: 2021-04-04
Filing date: 2021-04-04
Publication date: 2021-12-03
Anticipated expiration: 2031-04-04

Abstract

A conductive brush comprises a brush frame, conductive metal sheets and a conductive brush, wherein the conductive brush frame 3 is made into a long strip shape, a plurality of conductive metal sheets 4 are arranged on the conductive brush frame, and the lower edges of the conductive metal sheets are fixed with the conductive brush 8. The conductive brush is used for replacing the existing conductive aluminum roller, and the problems that the performance of the conductive aluminum roller is unstable during working, the printing quality is influenced, and time and labor are consumed during replacement are solved. The rubber roller can adapt to different types of printing rubber rollers, and is simple to mount and durable; and simultaneously, the product quality and the production efficiency are improved.

Description

Conductive brush

Technical Field

The utility model relates to a conductive brush.

Background

Intaglio printing is a direct printing method, and the printing plate of intaglio printing is composed of pits corresponding to the patterns and texts of an original and the surface of the printing plate. When printing, the ink is filled into the pits, the ink on the surface of the printing plate is scraped by a doctor blade, and the ink contained in the pits is directly imprinted on a printing stock by the pressure of the rubber imprinting rubber roll, so that the printing is completed. The color depth of the printed picture is determined by the size and depth of the pits, if the pits are deeper, the amount of ink contained is greater, and the ink layer left on the imprinted substrate is thicker, whereas if the pits are shallower, the amount of ink contained is less, and the ink layer left on the imprinted substrate is thinner. In order to increase the three-dimensional effect and the aesthetic feeling, some patterns are overlapped by multiple colors, the depth of the layers is clear, the mesh points at the shallow layers are small, the printing is easy to lose points, and the printing quality and the product packaging effect are influenced after the points are lost. In order to improve the product quality, the problem of layer point loss must be solved, and the problem of printing layer point loss can be solved only by additionally arranging an electrostatic ink absorption device on a color set of the gravure printing machine. The electrostatic ink absorption device can effectively solve gravure printing level missing point problem, but also met the problem when using electrostatic ink absorption device, electrically conductive aluminium roller is heavy, lean on spring pressure to sticis electrically conductive aluminium roller on the printing rubber roll, the rotation of during operation rubber roll drives electrically conductive aluminium roller rotatory, electrically conductive aluminium roller diameter is little, the rotation speed is very fast, if printing rubber roll concentricity is slightly poor, or electrically conductive aluminium roller concentricity is slightly poor, electrically conductive aluminium roller will beat from top to bottom during the rotation, influence electrostatic transmission effect, lead to the printing quality unstability. Only the rubber roller or the conductive aluminum roller with poor concentricity is replaced at the moment, the replacement difficulty of the rubber roller and the conductive aluminum roller is large, time and labor are wasted, and the production is influenced.

Disclosure of Invention

The utility model aims at providing a conductive brush for it is heavy to solve the electrically conductive aluminium roller among the static blotting device among the current gravure printing equipment, and electrically conductive aluminium roller will beat from top to bottom, influences the electrostatic transmission effect, and the installation degree of difficulty is big, changes consuming time and difficultly again, and the concentricity requirement to the electrically conductive rubber roll of printing is higher, and electrically conductive effect is unstable, leads to the unstable problem of printing quality.

The technical scheme is as follows: a conductive brush comprises a brush frame, conductive metal sheets and a conductive brush, wherein the conductive brush frame is made into a long strip shape, a plurality of conductive metal sheets are arranged on the conductive brush frame, and the conductive brush is fixed on the lower edge of each conductive metal sheet.

The conductive brush is soft and made of carbon fiber.

The connection mode of the conductive brush and the conductive metal sheet is that the conductive brush is fixedly connected to the lower edge of the conductive metal sheet by a metal strip through a screw.

Each conductive metal sheet and the conductive brush frame are fixed by screws. One end of the conductive brush holder is fixedly connected with a conductive wire by a screw, and the contact part of the conductive wire and the brush holder is a bare wire, so that the conductive wire and the brush holder are ensured to be in an electric contact state. The leading-out part of the conducting wire, namely the conducting wire which is arranged outside the contact part of the conducting wire and the brush holder and reaches the power supply, is provided with an insulating layer so as to ensure the safety of electricity utilization.

According to the mode, the conductive metal sheet fixedly connected with the conductive brush is fixed on the brush holder, and a conductive wire is connected to one end of the brush holder, so that the conductive brush is manufactured. And then the conductive hairbrush is arranged on the corresponding printing color group, and the angle is adjusted, so that the conductive hairbrush is effectively contacted with the electrostatic printing rubber roller, and the problems that the conductive aluminum roller in the existing gravure printing equipment can jump up and down to influence the electrostatic transmission effect and cause unstable printing quality are solved.

The conductive brush is used for replacing the existing conductive aluminum roller, and the problems that the performance of the conductive aluminum roller is unstable during working, the printing quality is influenced, and time and labor are consumed during replacement are solved. The rubber roller can adapt to different types of printing rubber rollers, and is simple to mount and durable; and simultaneously, the product quality and the production efficiency are improved.

Drawings

FIG. 1 is a schematic view of a conductive brush structure.

Detailed Description

The technical solution is further explained below as an embodiment with reference to the accompanying drawings.

Referring to fig. 1, a brush holder 3 is made of stainless steel material into a rectangular strip shape, screw holes 2 for installation are arranged near two end edges of the brush holder, and two screw holes are arranged at each end; thus, the brush holder is made. 16 mounting holes of the conductive metal sheets 4 are formed near the lower edge of the brush holder 3; a conductive metal sheet 4 is correspondingly arranged on each two holes, and the conductive metal sheets 4 are fixed on the brush frame 3 by screws; thus, a total of 8 conductive metal sheets 4 are mounted on the brush holder 3.

The lower edge of each conductive metal sheet 4 is provided with a connecting hole 5 near two sides for installing a conductive brush 8. The conductive brush 8 is made of soft carbon fiber, and the conductive brush 8 is tightly pressed on the conductive metal sheet 4 by a metal strip 6. Two fixing holes 7 are formed in the metal strip 6 in advance, and the positions of the two fixing holes 7 correspond to the connecting holes 5 on the lower edge of the metal sheet 4; so that the brush 8 is fixed to the lower edge of the conductive metal sheet 4 by screws.

A conductive wire 12 is fixed at one end of the brush holder 3, and is tightly pressed and fixed at one side of the brush holder 3 by a screw cap 10 through a screw 9 and a screw hole 2 which is pre-opened. The contact part of the conductive wire 12 and the brush holder is a bare wire, which ensures that the high-voltage static electricity transmitted through the conductive wire is transmitted to the brush holder 3 and then to the conductive metal sheet 4, so that the conductive brush 8 is charged with the high-voltage static electricity. The part of the conducting wire 12 extending outwards to the power supply is wrapped by the insulating layer 11, so that the power utilization safety in use is ensured.

When the conductive brush is used, the rectangular stainless steel brush frame 3 is arranged on the printing color set through the screws and the four screw holes 2 at the two ends of the brush frame, the angle is adjusted, and the conductive brush 8 is tightly contacted with the electrostatic printing rubber roller 1 on the printing color set. The conductive squeegee 8 is in effective contact with the electrostatic printing blanket 1, and generally, one of the two parts of the conductive squeegee 8 is in contact with the electrostatic printing blanket 1.

Because the whole conductive brush device is electrified, the non-conductive insulating material is arranged on the corresponding color group of the printer in advance, and the brush frame 3 is fixedly arranged on the insulating material, so that the printing equipment cannot be electrified, and the safety of operators is ensured. After the brush holder is mounted, the high-voltage conducting wire 12 is fixed on the screw 9 by the nut 10.

Therefore, the whole conductive brush device is installed, and the high-voltage static electricity can be started to use when the conductive brush device works.

Claims

1. A conductive brush comprises a brush frame, conductive metal sheets and a conductive brush, and is characterized in that the conductive brush frame (3) is made into a long strip shape, a plurality of conductive metal sheets (4) are arranged on the conductive brush frame, and the conductive brush (8) is fixed on the lower edge of each conductive metal sheet.

2. An electroconductive brush according to claim 1, characterized in that said electroconductive brush (8) is soft and made of carbon fiber.

3. A brush according to claim 1, wherein the brush (8) is connected to the conductive metal sheet (4) by fixing the brush (8) to the lower edge of the sheet (4) by a metal strip (6) and screws.

4. A brush according to claim 1 or 3, wherein each conductive metal plate (4) is screwed to the brush holder (3).

5. The conductive brush according to claim 1, wherein the conductive brush holder (3) has one end fixedly connected to the conductive wire (12) by a screw (9), and the contact portion between the conductive wire (12) and the brush holder (3) is a bare wire.