Small-screen-frame large-pattern metal screen plate

Abstract

The utility model discloses a small-screen-frame large-pattern metal screen plate which comprises a metal sheet with printing patterns arranged in the center, a polyester screen is arranged outside the metal sheet, a closed-ring-shaped composite edge is connected between the polyester screen and the metal sheet, and a closed-ring-shaped large false frame close to the outer edge is arranged on the polyester screen. The metal sheet is provided with a small screen frame which is close to the printing pattern and is in a closed ring shape. According to the metal screen printing plate, the overall size and tension of the screen printing plate are controlled through the large false frame, and then the small screen frame is used for final fixation, so that the finally-formed printing screen printing plate can achieve the effects of expanding a screen and manufacturing a small-screen-frame large-pattern printing screen printing plate under the condition that the composite edge space is not considered, the overall function is complete, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of printing screen technology, and more specifically, it relates to a metal screen with a small frame and a large graphic. Background Technology

[0002] Miniature printing presses are widely used in the microelectronics industry, primarily for printing patterns on ceramic substrates, with pattern sizes ranging from 2-3 cm and screen frame sizes between 19-21 cm. With the increasing convergence of market information, miniature printing presses are also being used in laboratory research and development and other industries, such as photovoltaic industry research institutes, to print electrodes on silicon wafers to study solar cell performance. The current challenge is that solar silicon wafers are typically 18.2-18.5 cm in size, and the pattern size is much larger than the microelectronic pattern, meaning the pattern is very close to the edge of the screen frame. A conventional screen has three components: the frame, the polyester mesh, and a metal / wire mesh. During screen making, the polyester mesh is bonded to the frame, and simultaneously to the mesh fabric or steel sheet. The overlapping area of ​​the polyester mesh and the mesh fabric or steel sheet is called the composite edge. The current difficulty is that the pattern is so close to the inner diameter of the frame that there is no space for the composite edge. A normal composite edge width needs to be 1-1.5 cm, and there is no space for the polyester mesh to bond to the frame, making dimensional accuracy control impossible.

[0003] like Figure 2 The diagram shown is a schematic of a conventional small screen printing plate structure. In the conventional screen printing plate tensioning method, the polyester mesh is bonded to a composite edge of a metal sheet. The dimensions and tension of the drawing are controlled by stretching the polyester mesh fabric. Then, the outer edge of the polyester mesh is bonded to the frame to complete the screen printing.

[0004] like Figure 3 The diagram shows a structural schematic of a screen printing plate with a large graphic and a small frame. In a screen printing plate with a small frame and a large graphic structure, there is no space to design the positions of the composite edges and the polyester mesh; conventional screen-forming methods and structures cannot achieve this.

[0005] Based on the above problems, this patent application discloses a metal mesh plate with a small frame and large pattern, which can solve the above problems while also controlling the dimensional accuracy very well. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a metal mesh plate with a small frame and large graphic.

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The utility model relates to a small frame large graphic metal screen, which includes a metal sheet with a printed pattern arranged in the center, a polyester mesh outside the metal sheet, a closed ring-shaped composite edge connecting the polyester mesh and the metal sheet, a large false frame with a closed ring shape near the outer edge of the polyester mesh, and a small frame with a closed ring shape near the printed pattern on the metal sheet.

[0008] In summary, the utility model has the following beneficial effects: the small net frame big pattern metal screen printing plate, the metal screen printing plate is controlled by the big false frame first, and the size and tension of the whole screen printing plate are controlled, then the small net frame is finally fixed, so that the finally formed printing screen printing plate can reach the effect of the small net frame big pattern printing screen printing plate without considering the composite edge space, the overall function is perfect, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the overall structure schematic diagram of the utility model;

[0010] Figure 2 It is the structure schematic diagram of the big pattern small net frame screen printing plate.

[0011] Figure 3 It is the structure schematic diagram of the big pattern small net frame screen printing plate. DETAILED DESCRIPTION

[0012] In order to make the person skilled in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific implementation examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not the limitation of the utility model patent claims. Based on the examples in the utility model, all other examples obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0013] The utility model is further illustrated below in combination with the drawings and the preferred examples.

[0014] Example 1

[0015] Referring to Figure 1 The small net frame big pattern metal screen printing plate of the utility model comprises a metal sheet 2 with a printing pattern 1 arranged in the center, a polyester net 3 arranged outside the metal sheet 2, a composite edge 4 in a closed loop shape connected between the polyester net 3 and the metal sheet 2, a big false frame 5 in a closed loop shape close to the outer edge arranged on the polyester net 3, and a small net frame 6 in a closed loop shape close to the printing pattern arranged on the metal sheet 2.

[0016] In the embodiment, the big false frame 5 is arranged on the polyester net 3 first, the pattern size and the pattern area tension are controlled in the way of compensating the film and the drawing, the small net frame 6 is fixed after the tension is adjusted to the appropriate tension, and finally the metal sheet outside the small net frame 6 and other redundant structures are removed, so that the small net frame big pattern printing screen printing plate is prepared.

[0017] The small net frame big pattern metal screen plate disclosed by the utility model relates to a metal screen plate, which is first controlled by a big false frame to control the size and tension of the whole screen plate, and then is finally fixed by a small net frame, so that the finally formed printing screen plate can achieve the effect of being able to be tensioned and the effect of being a small net frame big pattern printing screen plate without considering the composite edge space, and has perfect overall function and high practicability.

[0018] Unless otherwise stated and limited, in the utility model, if there are terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, the orientation or positional relationship is based on the actual shown orientation or positional relationship, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the orientation or positional relationship in the utility model are only used for example description, and cannot be understood as the limitation of the patent, and for the ordinary skilled person in the art, the specific meaning of the above terms can be understood according to the specific circumstances and the embodiment.

[0019] Unless otherwise stated and limited, in the utility model, if there are terms "setting", "connection" and "connection", they should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected, can be direct connection, or indirect connection through intermediate medium, can be the communication inside two elements. For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0020] The above detailed the preferred embodiment of the utility model. It should be understood that the ordinary skilled person in the art can make many modifications and changes according to the concept of the utility model without creative labor. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. A metal screen printing plate with a small frame and a large graphic, comprising a metal sheet with a printed pattern arranged in the center, a polyester mesh surrounding the metal sheet, and a closed-loop composite edge connecting the polyester mesh and the metal sheet, characterized in that: The polyester mesh has a large false frame that is a closed ring near the outer edge, and the metal sheet has a small mesh frame that is a closed ring near the printed pattern.

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