CN103402315B - Plug-and-play circuit board printing chassis structure - Google Patents

Abstract

The invention discloses a plug-and-play circuit board printing chassis structure, which includes a chassis, a bottom plate is laid horizontally on the bottom of the chassis, a sealing base is fixedly installed on the bottom of the chassis; two layers of stickers are laid from top to bottom inside the sealing base The plate is located on the top surface of the sealing base and is horizontally provided with a layer of isolation laminate between the bottom plate and the chassis, and a ring of sealing tape is arranged on the periphery of the connection between the sealing base and the chassis. A pinhole is opened at the center of the chassis, and a flat-thrust body is inserted into the pinhole, and a plurality of positioning pins are evenly distributed on the periphery of the flat-thrust body. The beneficial effects of the invention are: it can avoid residual glue left on the surface of the base, and can avoid production quality problems caused by the residual glue; it has the advantages of convenient disassembly and assembly, easy cleaning, and is conducive to improving the printing efficiency of circuit boards; The multifunctional purpose of the chassis.

Description

A plug-and-play printed circuit board chassis structure

technical field

The invention relates to the technical field of printing, in particular to a plug-and-play circuit board printing chassis structure.

Background technique

Printing technology is the entire process of visual and tactile information printing and reproduction. It is a technology that reproduces art, text, and images in batches on demand through planning, photography, word processing, art design, editing, color separation, plate making, printing, and post-press molding. Printed circuit boards have developed from single-layer boards to double-sided boards, multi-layer boards, and flexible boards, and are constantly developing in the direction of high precision, high density, and high reliability, continuously reducing volume, reducing costs, and improving performance. The development trend of printed circuit board manufacturing technology is to develop in the direction of high density, high precision, fine aperture, thin wire, small pitch, high reliability, multi-layer, high-speed transmission, light weight and thin shape in terms of performance. The wires of the single-sided panel only appear on one side, and the double-sided panel is an extension of the single-sided panel, which can conduct the lines between the two layers through the via holes to form the required network connection. At present, during the printing process of circuit boards, double-sided tape is usually used to paste the fixing pins and plastic edge strips on the seat surface of the base. When the fixing pins need to be removed after the process is completed, the double-sided The residual glue of the surface glue; when the double-sided printing of the circuit board is carried out, these residual glues are easy to stick to the surface of the circuit board facing the base, which will cause problems such as poor tinning. It needs to be pointed out that the residual glue overflow between the bottom of each needle body and the bottom plate is easy to occur, and there is also a lack of sealing structure between the board and the periphery of the chassis, which cannot ensure the stability of the printing work of the entire chassis. Therefore, for the above aspects, reasonable improvements need to be made.

Contents of the invention

The purpose of the present invention is to provide a plug-and-play type that can enhance the sealing and stability between the board and the periphery of the chassis, can avoid residual glue, is easy to disassemble and clean, and is conducive to improving the printing efficiency of circuit boards. The printed circuit board chassis structure solves many deficiencies in the prior art.

The purpose of the present invention is specifically achieved through the following technical solutions:

A plug-and-play circuit board printing chassis structure, including a chassis, a bottom plate is laid horizontally on the lower surface of the chassis, and a sealed base is fixedly installed on the bottom of the chassis; two layers of pasting boards are laid from top to bottom inside the sealed base, A layer of isolation laminate is horizontally arranged on the upper surface of the sealing base and between the bottom plate and the chassis, and a ring of sealing tape is arranged on the periphery of the connection between the sealing base and the chassis. A pinhole is opened at the center of the chassis, and a flat-thrust body is inserted into the pinhole, and a plurality of positioning pins are evenly distributed on the periphery of the flat-thrust body.

The beneficial effects of the plug-and-play printed circuit board chassis structure of the present invention are:

⑴The fixing pin can be fixed on the base without using double-sided tape, which can avoid leaving residual glue on the surface of the base, and can avoid production quality problems that may be caused by residual glue;

(2) By setting the base plate and positioning pins and other structures, it has the advantages of convenient disassembly and assembly, easy cleaning, and is conducive to improving the printing efficiency of circuit boards;

⑶ By installing a sealing base under the base plate, it is beneficial to enhance the sealing and stability between the plate and the periphery of the chassis, and avoid the phenomenon of overflow of residual glue.

Description of drawings

The present invention will be described in further detail below according to the drawings and embodiments.

FIG. 1 is a structural diagram of a plug-and-play printed circuit board chassis structure according to an embodiment of the present invention.

In the figure: 1, chassis; 2, positioning pin; 3, flat top pin body; 4, bottom plate; 5, triangular top; 6, pinhole; 7, sealing base; Sealing tape.

detailed description

As shown in Fig. 1, the plug-and-play printed circuit board chassis structure according to the embodiment of the present invention includes a chassis 1, a pinhole 6 is vertically opened downward at the center of the chassis 1, and a pinhole 6 is inserted inside the pinhole 6. The flat top needle body 3, a number of positioning pins 2 are evenly distributed on the periphery of the flat top needle body 3, and these positioning pins 2 are distributed in a circular array with the flat top needle body 3 as the center point, and the top of each positioning pin 2 has a triangular structure in section 5 at the top of the triangle;

A base plate 4 is laid horizontally on the lower bottom of the chassis 1, and the bottom surface of each positioning pin 2 and the flat top pin body 3 is closely attached to the upper surface of the bottom plate 4. The thickness of the bottom plate 4 is 1.2mm, and each positioning pin 2 and the flat top pin body 3 The distance between them is 12mm;

At the same time, a sealing base 7 is fixedly installed at the bottom of the chassis 1, and two layers of veneers 9 are laid from top to bottom inside the sealing base 7, and a seal is placed on the top surface of the sealing base 7 and between the bottom plate 4 and the chassis 1. The layer is separated from the laminate 8, and a ring of sealing tape 10 is arranged on the periphery of the joint between the sealing base 7 and the chassis 1.

Claims (1)

1. a kind of instant inserted and instant using type circuit board prints chassis structure, including chassis it is characterised in that：Lay one piece of base plate positioned at chassis bottom surface level, described tray bottom fixedly mounts a sealed base, two-layer pasting board is from top to bottom laid inside sealed base, on sealed base, top surface and being between base plate and chassis is horizontally disposed with one layer of isolation laminate, described sealed base and chassis joint periphery setting one circle band, open up one flat-top needle body of insertion inside a pin hole and this pin hole at described center chassis position, be uniformly distributed some positioning needles positioned at this flat-top needle body periphery.