CN213186733U

CN213186733U - Large-area hollowed-out printed circuit board screen printing jig

Info

Publication number: CN213186733U
Application number: CN202022134781.7U
Authority: CN
Inventors: 黄光明; 吉建成; 刘明
Original assignee: MFS TECHNOLOGY (HUNAN) CO LTD
Current assignee: MFS TECHNOLOGY (HUNAN) CO LTD
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-11
Anticipated expiration: 2030-09-25

Abstract

The utility model provides a large tracts of land fretwork printed circuit board silk screen printing tool, including bottom plate, platform and second pin set up at the bottom plate with one side plane position, and the circuit board body is placed on the bottom plate, and the platform is located circuit board fretwork position. When the circuit board is in silk screen printing, because the fretwork position is filled by the platform, the silk screen receives the support of platform in the fretwork position, and the silk screen has avoided damaged the deformation.

Description

Large-area hollowed-out printed circuit board screen printing jig

Technical Field

The utility model relates to a printed circuit board technical field especially relates to a large tracts of land fretwork printed circuit board silk screen printing tool.

Background

With the development of the technology, the functions of the mobile phone are more and more powerful, the number of components mounted on the main board of the mobile phone is more and more, but the overall size of the mobile phone is not changed much, and the layout space of the components is limited. In order to arrange more elements in the limited space of the mobile phone, each manufacturer adopts a 3D compound stacking scheme, namely, a similar sandwich structure is adopted, a circuit board and an electronic element are longitudinally stacked, the longitudinal space of a mainboard is fully utilized, and a transverse space is vacated for a 5G module and a 5G antenna, so that the problem that the 5G module needs to occupy too large area is solved; the design of the overhead layer circuit board in the 3D compound stacking scheme has large-area hollowed-out positions, and the large-area hollowed-out circuit board is large in area when screen printing ink is printed, and the silk screen scraper applies pressure to the silk screen when the silk screen passes through the large-area hollowed-out positions, so that the silk screen is easy to damage and deform, the product cannot be manufactured, silk screen tools are scrapped, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large tracts of land fretwork printed circuit board silk screen printing tool to solve the technical problem that the silk screen is easily damaged and is out of shape in the large tracts of land fretwork printed circuit board silk screen printing process.

In order to realize the purpose, the utility model provides a large tracts of land fretwork printed circuit board silk screen printing tool, including bottom plate, platform and second pin set up at the bottom plate with one side planar position.

Further, a third pin is arranged on the bottom plate close to the edge.

Further, the bottom plate is equipped with the screw, the screw is equipped with the third pin, one side that the bottom plate was kept away from to the third pin is located the downthehole that the platform set up.

Further, the platform is equipped with the screw, the screw is equipped with the third pin, the third pin is kept away from platform one side and is located the downthehole of bottom plate setting.

Further, the bottom plate is connected with the second pin through threads.

Furthermore, an elastic sheet is arranged at one end of the third pin.

The utility model discloses following beneficial effect has:

the platform is arranged on the bottom plate to fill the large-area hollowed-out position of the product, and the upper end plane of the platform and the upper end plane of the circuit board body are on the same horizontal line, so that the problem that the product cannot be manufactured due to the fact that a screen printing plate is damaged and deformed when the large-area hollowed-out circuit board is used for screen printing ink is solved; the circuit board body is fixed by the first pin arranged on the bottom plate, so that the circuit board body cannot move horizontally, and the alignment precision is improved; meanwhile, with the aid of the second pins arranged on the bottom plate, printing of ink on two sides is completed in a short time, waiting for the ink on one side to be dried completely is not needed, and production speed is improved; meanwhile, the platform and the pins are arranged to be detachable structures, and can be flexibly detached and loaded according to products of different designs, so that the utilization rate of the bottom plate is improved, and the utilization range of the jig is wider.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a top view of a preferred embodiment of the present invention;

fig. 2 is a cross-sectional view of a preferred embodiment of the invention;

fig. 3 is a top view of a preferred embodiment of the present invention;

fig. 4 is a cross-sectional view of a preferred embodiment of the invention;

FIG. 5 is a third pin illustration of the preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of a large-area hollowed-out PCB;

in the figure: 1. a base plate; 2. a platform; 3. a first pin; 4. A second pin; 5. a third pin; 51. a spring plate; 6. a circuit board body; 61. the circuit board is hollowed out.

Detailed Description

The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Referring to fig. 1 to 6, a large tracts of land fretwork printed circuit board silk screen printing tool, includes bottom plate 1, platform 2 and second pin 4 set up in the same one side plane position of bottom plate 1, and the shape of platform 2 sets up according to the shape of circuit board fretwork position 61, and its platform 2 slightly is less than circuit board fretwork position to ensure to place circuit board fretwork position. The distance of the platform 2 higher than the bottom plate 1 is equal to the sum of the thickness of the circuit board body 6 and the distance of the second pin 4 higher than the bottom plate 1, so that the upper end plane of the platform 2 and the upper end plane of the circuit board body 6 are in the same horizontal line.

The circuit board body 6 is placed on the bottom plate 1, and the platform 2 is located in a circuit board hollow position 61. When the circuit board was at the silk screen printing, because the fretwork position is filled by platform 2, the silk screen receives the support of platform 2 in the fretwork position, and the silk screen has avoided damaged the deformation. The side of the second pin 4 far away from the bottom plate is contacted with the circuit board body 6 and used for supporting the circuit board body 6. If the circuit board needs two-sided printing, then 4 positions of second pin are confirmed according to the pattern of circuit board body printing, avoid the position of printing, accomplish at one side silk screen printing of circuit board, need not to wait for printing ink to dry out, place the circuit board turn-over, print the another side, because the second pin 4 of supporting circuit board has avoided the position of printing, so, the one side of having printed is not influenced.

Bottom plate 1 is close to the border position and is equipped with first pin 3, and circuit board body 6 is equipped with the hole rather than corresponding the position, and the silk screen printing position setting is avoided in the hole of first pin 3 and the circuit board body that corresponds. First pin 3 is located the downthehole of circuit board body, avoids circuit board body 6 in the removal of horizontal direction, ensures the precision of silk screen printing.

The bottom plate 1, the platform 2, the first pin 3 and the second pin 4 in the above scheme can be arranged as a whole, that is, a whole block of material is processed by milling, cutting or the like, or formed by die casting.

The bottom plate 1 and the platform 2, the first pin 3 and the second pin 4 can be detachably connected.

One of them can dismantle connected mode is equipped with the screw through bottom plate 1, the screw is equipped with third pin 5, and third pin 5 carries out threaded connection through the screw with bottom plate 1 promptly, one side that the bottom plate was kept away from to third pin 5 is located the downthehole that platform 2 set up, and the hole that platform 2 set up can blind hole or through-hole. When the platform is used, the platform 2 is placed on the bottom plate 1, and the third pin 5 limits the displacement of the platform 2 in the horizontal direction.

Another kind can dismantle connected mode is equipped with the screw through platform 2, the screw is equipped with third pin 5, and third pin 5 carries out threaded connection through the screw with platform 2 promptly, third pin 5 keeps away from platform 2 one side and is located the downthehole of bottom plate 1 setting. When the platform is used, the platform 2 is placed on the bottom plate 1, and the third pin 5 limits the displacement of the platform 2 in the horizontal direction.

And one end of the third pin 5 is provided with an elastic sheet 51, and the elastic sheet 51 is arranged at one end far away from the threaded connection part. Third pin 5 one end and bottom plate 1 or 2 screw threads, then the shell fragment 51 that the other end set up blocks in platform 2 or the hole of bottom plate 1, only need during the installation directly press into can, fixed platform makes it can not horizontal migration in the operation process when labour saving and time saving.

Second, the second pin 4 is connected to the base plate 1 by means of a screw connection.

Adopt detachable mode to connect, be connected platform 2, first pin 3, second pin 4 and bottom plate 1, when the shape of circuit board fretwork position 61 changed, take out platform 2 or second pin 4, change the platform of other shapes, perhaps change the position of second pin 4. The jig is prevented from being integrally machined again due to the shape change of the hollow-out position of the circuit board, materials are favorably fully utilized, and the cost is saved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a large tracts of land fretwork printed circuit board silk screen printing tool, its characterized in that includes bottom plate (1), platform (2) and second pin (4) set up in the same one side plane position of bottom plate (1).

2. The silk-screen printing jig according to claim 1, characterized in that a third pin (5) is arranged on the bottom plate (1) near the edge.

3. The silk-screen jig is characterized in that the bottom plate (1) is provided with a screw hole, the screw hole is provided with a third pin (5), and one side, far away from the bottom plate, of the third pin (5) is positioned in a hole formed in the platform (2).

4. The silk-screen jig is characterized in that the platform (2) is provided with a screw hole, the screw hole is provided with a third pin (5), and one side, far away from the platform (2), of the third pin (5) is positioned in a hole formed in the bottom plate (1).

5. The silk-screen jig of claim 1, wherein the bottom plate (1) is connected with the second pin (4) through threads.

6. The silk-screen jig of any one of claims 3 or 4, wherein one end of the third pin (5) is provided with a spring piece (51).