Metal printing screen capable of eliminating static electricity

Abstract

The utility model discloses a metal printing screen capable of eliminating static electricity, which comprises a conductive screen frame, polyester screen cloth is stretched in the screen frame, a metal mesh connected with the polyester screen cloth is arranged in the center of the polyester screen cloth, and a conductive wire is connected between the metal mesh and the screen frame. The conductive wires can be woven in the polyester screen cloth; the conductive wire is a steel wire or a copper wire; the metal mesh is an electroforming nickel mesh, a nickel alloy electroforming mesh, an electroforming nickel and nickel alloy metal plate, a laser cutting steel plate or a chemical etching metal printing screen plate. According to the metal printing screen, one or more conductive wires are connected to the screen frame in the screen pattern metal area, static electricity is conducted to the printing machine table, the printing machine table is provided with a grounding wire, the problem that the printing effect becomes poor gradually due to the fact that foreign matter is adsorbed by the static electricity can be solved, the overall function is complete, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of printing screens, and more specifically, to a metal printing screen capable of eliminating static electricity. Background Art

[0002] Printing screens are widely used in the semiconductor industry and photovoltaic industry, especially in the development of my country's photovoltaic industry. The technological breakthroughs in the photovoltaic industry have also promoted the continuous progress of printing screens. Now, various types of printing screens have emerged in the domestic market. According to the source of the main material, printing screens can be divided into two categories. One is the steel wire mesh made of imported foreign steel wire woven mesh as the main material, and the second is the screen formed by electroforming mesh, electroforming printed metal plate, laser cutting metal plate or etching metal.

[0003] The difference in structure between the second type of screen and the first type of screen is that the mesh is an integrally connected structure, while the mesh of the first type of screen is woven from mesh wire. The mesh is taken as a whole. For example, when printing on an electroformed metal plate, the scraper and the plate are repeatedly in contact and rubbed, which generates static electricity. The scraper is made of rubber and does not conduct electricity. The ink knife does not touch the plate, and the unsintered slurry is a non-conductive material, which will cause the static electricity on the plate to increase with the number of prints. The presence of static electricity will absorb foreign matter carried on the printing table or silicon wafer, such as fragments of worn belts, metal particles dropped by friction of fixtures, etc. These foreign matter absorbed by the plate can easily cause poor printing, making the printing effect of the metal plate worse and worse. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a metal printing screen for eliminating static electricity, wherein the metal printing screen can eliminate static electricity on a printing plate during printing.

[0005] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a metal printing screen for eliminating static electricity, including a conductive screen frame, a polyester mesh cloth is stretched inside the screen frame, a metal mesh sheet connected to the polyester mesh cloth is provided in the center, and a conductive wire is connected between the metal mesh sheet and the screen frame.

[0006] The utility model is further configured as follows: the conductive wire can be woven into the polyester mesh.

[0007] The utility model is further configured as follows: the conductive wire is a steel wire or a copper wire.

[0008] The utility model is further configured as follows: the metal mesh is an electroformed nickel mesh, a nickel alloy electroformed mesh, a metal plate of electroformed nickel and nickel alloy, a laser cut steel plate or a chemically etched metal printing screen.

[0009] The utility model is further configured as follows: the mesh frame is made of cast iron material.

[0010] The utility model is further configured as follows: the polyester mesh cloth is made of nylon material.

[0011] In summary, the utility model has the following beneficial effects: the metal printing screen for eliminating static electricity involved in the utility model conducts static electricity to the printing machine by connecting one or more conductive wires to the screen frame in the metal area of ​​the screen pattern. The printing machine has a grounding wire, which can eliminate the problem of gradually deteriorating printing effects caused by static electricity adsorbing foreign matter. The overall function is complete and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0014] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0015] Example 1

[0016] See also Figure 1 As shown, the present embodiment involves a metal printing screen for eliminating static electricity, comprising a conductive screen frame 1, the screen frame 1 is made of cast iron material, a polyester mesh cloth 2 made of nylon material is stretched inside the screen frame 1, a metal mesh 3 connected to the polyester mesh cloth 2 is provided in the center, the metal mesh 3 is an electroformed nickel mesh, a nickel alloy electroformed mesh, a metal plate of electroformed nickel and nickel alloy, a laser cut steel plate or a chemically etched metal printing screen, and a conductive wire 4 is connected between the metal mesh 3 and the screen frame 1.

[0017] Furthermore, the conductive wire 4 can be woven into the polyester mesh 2 .

[0018] In this embodiment, the conductive wires 4 are woven into the polyester mesh 2 to electrically connect the mesh frame 1 and the metal mesh 3, so that the static electricity concentrated on the metal mesh 3 can be conducted out and eliminated.

[0019] Example 2

[0020] See also Figure 1As shown, the present embodiment involves a metal printing screen for eliminating static electricity, comprising a conductive screen frame 1, the screen frame 1 is made of cast iron material, a polyester mesh cloth 2 made of nylon material is stretched inside the screen frame 1, a metal mesh 3 connected to the polyester mesh cloth 2 is provided in the center, the metal mesh 3 is an electroformed nickel mesh, a nickel alloy electroformed mesh, a metal plate of electroformed nickel and nickel alloy, a laser cut steel plate or a chemically etched metal printing screen, and a conductive wire 4 is connected between the metal mesh 3 and the screen frame 1.

[0021] Furthermore, the conductive wire 4 is a steel wire or a copper wire, or other conductive wire materials that achieve the same conductive function, including negative ion materials that can eliminate static electricity.

[0022] In this embodiment, the conductive wire 4 is used to electrically connect the screen frame 1 and the metal mesh 3 so that static electricity accumulated on the metal mesh 3 can be conducted out and eliminated.

[0023] The metal printing screen for eliminating static electricity involved in the utility model conducts static electricity to the printing machine by connecting one or more conductive wires to the screen frame in the metal area of ​​the screen pattern. The printing machine has a grounding wire, which can eliminate the problem of gradually deteriorating printing effects caused by static electricity adsorbing foreign matter. The overall function is perfect and the practicability is strong.

[0024] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0025] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A metal printing screen for eliminating static electricity, comprising a conductive screen frame, a polyester mesh cloth stretched inside the screen frame, and a metal mesh sheet connected to the polyester mesh cloth is arranged in the center thereof, characterized in that: A conductive wire is connected between the metal mesh and the mesh frame.

2. The metal printing screen for eliminating static electricity according to claim 1, characterized in that: The conductive thread may be woven into a polyester mesh.

3. The metal printing screen for eliminating static electricity according to claim 1 or 2, characterized in that: The conductive wire is a steel wire or a copper wire.

4. The metal printing screen for eliminating static electricity according to claim 1, characterized in that: The metal mesh is an electroformed nickel mesh, a nickel alloy electroformed mesh, a metal plate of electroformed nickel and nickel alloy, a laser cut steel plate or a chemically etched metal printing screen.

5. The metal printing screen for eliminating static electricity according to claim 1, characterized in that: The mesh frame is made of cast iron.

6. The metal printing screen for eliminating static electricity according to claim 1, characterized in that: The polyester mesh is made of nylon material.

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