CN202573249U

CN202573249U - Screen printing device with PCB (Printed Circuit Board)

Info

Publication number: CN202573249U
Application number: CN 201220249307
Authority: CN
Inventors: 俞宜
Original assignee: JIANGSU WEIXIN ELECTRONIC CO Ltd
Current assignee: JIANGSU WEIXIN ELECTRONIC CO Ltd
Priority date: 2012-05-30
Filing date: 2012-05-30
Publication date: 2012-12-05
Anticipated expiration: 2022-05-30

Abstract

The utility model discloses a screen printing device with a PCB (Printed Circuit Board). The screen printing device comprises a screen printing platform and a mesh plate, wherein the PCB is arranged on the upper surface of the screen printing platform; through holes are formed in the PCB; the mesh plate is arranged above the PCB; holes matched with the through holes in the PCB are formed in the mesh plate; and sealing strips are respectively arranged on two sides of the mesh plate. According to the screen printing device disclosed by the utility model, blue glue in the printing process of the PCB can be enabled to uniformly enter the through holes in the PCB through the holes; meanwhile, the uniformity of the thickness of the blue glue in the through holes in the PCB is ensured; and the possibility of generating bubbles is reduced, and thus the repair rate of the PCB is greatly reduced, the production efficiency is increased and the production cost is reduced.

Description

A kind of PCB silk-screen device

Technical field

The utility model relates to a kind of printing equipment of circuit board, particularly relates to a kind of PCB silk-screen device.

Background technology

PCB (PrintedCircuitBoard), promptly printed circuit board is claimed printed circuit board (PCB), printed substrate again, is the important electron parts, is the supporter of electronic devices and components, is the supplier that electronic devices and components are electrically connected.Because it is to adopt electron printing to make, so be called as " printing " circuit board.Before printed circuit board occurred, the interconnection between the electronic devices and components all was to rely on electric wire directly to connect realization, and now, printed circuit board (PCB) has occupied the status of empery in electronics industry.According to the circuit number of plies, PCB is divided into single sided board, dual platen and multi-layer sheet.Common multi-layer sheet is generally 4 laminates or 6 laminates, and complicated multi-layer sheet can reach tens layers.Single sided board (Single-Sided Boards) is on the most basic PCB; Part concentrates on wherein one side; Lead then concentrates on the another side; Because single sided board has many strict restriction (because have only one side, can not intersect between wiring and must be around path alone) on designed lines, so have only early stage circuit just to use this type plate.All there is wiring on the two sides of dual platen (Double-Sided Boards), but will use the lead on two sides, must between the two sides, have suitable circuit to connect, and " bridge " between sort circuit is called guide hole (via).Guide hole is on PCB; Be full of or the duck eye of coated with metal; It can be connected with the lead on two sides; Because the area of dual platen is bigger one times than single sided board, dual platen has solved in the single sided board because the staggered difficult point (can be conducting to another side through the hole) of wiring, and it is more suitable for being used in than single sided board more on the complicated circuitry.Multi-layer sheet (Multi-Layer Boards) has been used more single or two-sided wiring plates; With one two-sidedly make internal layer, two single faces are done outer or two two-sidedly make internal layer, two single faces are made outer field printed substrate; Through navigation system and adhesive material alternately together and the printed substrate that interconnects by designing requirement of conductive pattern just become four layers, six-layer printed circuit board, be also referred to as multilayer printed circuit board.All 4 to 8 layers structure like most motherboard.

As purposes electronic element products the most widely, PCB has great vitality.At present, PCB usually need be with in the through hole of ink printing to the PCB in the process of carrying out silk-screen, and traditional method generally is that PCB is placed on the silk-screen platform, on PCB, covers silk screen then and prints.But because problems such as mesh is not full, mesh hole in use appear in silk screen easily, thereby cause the quality problem such as the interior generation of through hole bubble on the PCB, make that the PCB repair rate of serigraphy is very high, increased production cost.

Summary of the invention

For addressing the above problem, the utility model discloses a kind of PCB silk-screen device, reduced the repair rate of PCB, improved production efficiency.

The disclosed a kind of PCB silk-screen device of the utility model comprises silk-screen platform and web plate, and the upper surface of described silk-screen platform is provided with PCB, and PCB is provided with through hole, and described web plate is arranged on the top of PCB, and web plate is provided with PCB and goes up the hole that through hole adapts.

A kind of improvement of the disclosed a kind of PCB silk-screen device of the utility model, the both sides of described web plate are provided with sealing strip.

Another of the disclosed a kind of PCB silk-screen device of the utility model improved, and the number in described hole is at least two.

The disclosed a kind of PCB silk-screen device of the utility model; Through adopting web plate with holes, can the blue glue in the PCB printing be got in the through hole on the PCB through the hole uniformly, guaranteed that simultaneously blue glue thickness in the through hole of PCB is even; Be difficult for producing bubble; Greatly reduce the repair rate of PCB, improved production efficiency, reduced production cost.

Description of drawings

The structural representation of Fig. 1, the utility model;

Reference numerals list: 1, silk-screen platform, 2, PCB, 3, web plate, 4, the hole, 5, sealing strip.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment, further illustrate the utility model, should understand the following specific embodiment only be used to the utility model is described and be not used in the restriction the utility model scope.Need to prove; Describe below the word " preceding " that uses, " back ", " left side ", " right side ", " on " and D score refer to the direction in the accompanying drawing, word " interior " and " outward " refer to respectively towards or away from the direction of specific features geometric center.

As shown in Figure 1, the disclosed a kind of PCB silk-screen device of the utility model comprises silk-screen platform 1 and web plate 3; The upper surface of described silk-screen platform 1 is provided with PCB2; PCB2 is provided with through hole, and described web plate 3 is arranged on the top of PCB2, and web plate 3 is provided with PCB2 and goes up the hole 4 that through hole adapts.

As a kind of preferred, the both sides of described web plate 3 are provided with sealing strip 5.

As a kind of preferred, the number in described hole 4 is at least two.

As a kind of preferred, described sealing strip 5 is a sealed adhesive paper.

As a kind of preferred, described web plate 3 is an aluminium sheet.

During work, the PCB2 of needs printing is placed on the upper surface of silk-screen platform 1, with sealing strip 5 fixing seals, during printing, blue glue enters into the through hole on the PCB2 through the hole on the web plate 34 with the both sides of web plate 3, and is can thickness even, is difficult for producing bubble.The repair rate of the PCB of traditional serigraphy is 30～40%, and the repair rate of the PCB after the utility model printing greatly reduces the repair rate of PCB less than 5%.

The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme of being made up of above technical characterictic combination in any.

Claims

1. PCB silk-screen device, it is characterized in that: it comprises silk-screen platform and web plate, and the upper surface of described silk-screen platform is provided with PCB, and PCB is provided with through hole, and described web plate is arranged on the top of PCB, and web plate is provided with PCB and goes up the hole that through hole adapts.

2. a kind of PCB silk-screen device according to claim 1, it is characterized in that: the both sides of described web plate are provided with sealing strip.

3. a kind of PCB silk-screen device according to claim 1, it is characterized in that: the number in described hole is at least two.