CN103402317B - A kind of printing chassis with reel positioning needle - Google Patents

Abstract

The present invention discloses a kind of printing chassis with reel positioning needle, and including chassis, a pin hole and this pin hole one flat-top needle body of internal insertion are offered in described center chassis position, are positioned at this flat-top needle body periphery and are uniformly distributed some positioning needles；It is positioned at chassis bottom surface level and lays one piece of base plate, simultaneously, from top to bottom be cascading below described base plate three pasting boards, is positioned at the la m surface in the middle of three pasting boards and offers taper locating slot, and the taper locating slot of described positioning needle lower end insertion correspondence is interior and fixes；The each positioning needle jack being positioned on chassis sets up a circle reel and this reel is closely attached in positioning needle outside wall surface.Present invention have the beneficial effect that and can avoid leaving over cull in susceptor surface, it is possible to avoid the product quality problems that may cause due to cull；There is easy accessibility, be easy to the advantages such as cleaning, beneficially raising wiring board printing efficiency；It is advantageously implemented the multi-functional purpose on printing chassis.

Description

A printing chassis with roll positioning pins

technical field

The invention relates to the technical field of printing, in particular to a printing chassis with roll positioning pins.

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 should be pointed out that after each needle body is inserted into the chassis, its outer wall often loosens with the chassis, resulting in poor overall stability between the chassis and the positioning pins. 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 printing chassis with reel positioning pins that can avoid needle body rotation inside the chassis, can avoid residual glue, is easy to disassemble, easy to clean, and is conducive to improving the printing efficiency of circuit boards. There are many deficiencies in technology.

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

A printing chassis with reel positioning pins, including a chassis, a pinhole is opened at the center of the chassis, and a flat-thrust needle body is inserted inside the pinhole, and a number of positioning pins are evenly distributed on the periphery of the flat-throwing needle body; located under the chassis A base plate is laid horizontally on the bottom surface. At the same time, three sub-plates are arranged in sequence from top to bottom under the base plate. The surface of the middle plate located in the middle of the three sub-plates is provided with a tapered positioning groove, and the lower end of the positioning pin is inserted into the corresponding tapered positioning pin. and fixed in the groove; a coil is added in each positioning pin socket on the chassis, and the coil is close to the outer wall of the positioning pin.

Correspondingly, the distance between each positioning pin and the flat-thrust body is 10mm, and the top of each positioning pin has a triangular top, and the bottom surface of each positioning pin and the flat-thrust body is close to the upper surface of the base plate.

The beneficial effects of the printing chassis with roll positioning pins according to 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;

(3) By adding a reel structure between the outer wall of the positioning needle and the chassis and combining the fixed structure at the bottom of the needle body, it is beneficial to enhance the stability of the needle body.

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 printing chassis with roll positioning pins 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; shaped positioning slot.

detailed description

As shown in Figure 1, the printing chassis with roll positioning pins according to the embodiment of the present invention includes a chassis 1, a pinhole 6 is opened vertically downward at the center of the chassis 1, and a flat ejector pin is inserted into the pinhole 6 Body 3, a number of positioning pins 2 are evenly distributed on the periphery of the flat-thrust body 3, and these positioning pins 2 are distributed in a circular array with the flat-thrust body 3 as the center point, and the top of each positioning pin 2 has a triangle with a triangular cross-section top 5;

A bottom 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 1.1mm, and each positioning pin 2 and flat top pin body 3 The distance between them is 10mm;

Simultaneously, three subplates 7 are stacked sequentially from top to bottom under the bottom plate 4, and a tapered positioning groove 10 is provided on the surface of the middle plate 9, and the lower end of the positioning pin 2 is inserted into the corresponding tapered positioning groove 10 and fixed; A circle of reel 8 is added in the insertion hole of each positioning pin 2 on the chassis 1 and the reel 8 is attached to the outer wall surface of the positioning pin 2 .

Claims (1)

1. A printing chassis with reel positioning pins, including the chassis, characterized in that: a pinhole is set at the center of the chassis and a flat-thrust needle body is inserted inside the pinhole, and several flat-throwing needles are evenly distributed on the periphery of the flat-throwing needle body. Locating pins; a base plate is laid horizontally on the bottom surface of the chassis, and at the same time, three panels are arranged from top to bottom below the base plate, and a tapered positioning groove is provided on the surface of the middle plate located in the middle of the three panels, and the lower end of the positioning pin Insert it into the corresponding tapered positioning slot and fix it; add a roll in each positioning pin socket on the chassis and the roll is close to the outer wall of the positioning pin, and each positioning pin has a triangular top at the top , the bottom surface of each positioning pin and the flat top pin body is close to the upper surface of the bottom plate, and the distance between each positioning pin and the flat top pin body is 10mm.