CN113473713B

CN113473713B - Be used for three quick-witted wiring silk screen printing machine consent location structures

Info

Publication number: CN113473713B
Application number: CN202110633226.5A
Authority: CN
Inventors: 郭正平; 王正华; 付开龙
Original assignee: Fuzhou Ruihua Printed Circuit Board Co ltd
Current assignee: Fuzhou Ruihua Printed Circuit Board Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-08-30
Anticipated expiration: 2041-06-07
Also published as: CN113473713A

Abstract

The invention discloses a hole plugging positioning structure for a three-machine connection line screen printing machine, relates to the technical field of PCB (printed circuit board) processing, and provides a following solution for solving the problems that in the prior art, plugged holes cannot be detected, and once a previous process has errors or a screen printing plate is plugged, part of holes possibly fail to achieve the hole plugging effect, so that a produced product needs to be reworked, the production efficiency is reduced, and the product quality is influenced. According to the invention, whether the plug hole is blocked can be detected by observing the ink trace on the surface of the printing paper, so that the condition of secondary rework caused by the fact that the plug hole is not blocked is avoided, and the problem that the quality of the PCB is influenced due to ink diffusion can be avoided through the oleophobic ink paper.

Description

Be used for three quick-witted wiring silk screen printing machine consent location structures

Technical Field

The invention relates to the field of PCB processing, in particular to a hole plugging positioning structure for a three-machine connection screen printing machine.

Background

In recent years, with the rapid development and the change of science and technology, the productivity level is continuously improved, meanwhile, the life style and the consumption concept of people are changed, consumers are more and more active in the consumption process, higher requirements are made on commodity services, the requirements on the appearance and the function tend to be diversified and personalized, and the requirements on the quality, the price and the like of product services are also improved. The increasing demand will undoubtedly provide a new round of challenge for enterprises, and how to create the maximum profit while meeting the high demand of consumers is a difficult problem that the enterprises must solve. Except for the idea of reducing the cost, many enterprises introduce automation equipment to reduce the labor cost and simultaneously improve the production efficiency.

The principle of screen printing is that an image to be printed is exposed on a screen to form a screen printing plate, and ink is extruded by a scraper to form an image and text which are the same as those of an original manuscript on a printing stock through meshes of screen cloth. With the development and progress of the technology, at present, more and more screen printing machines with three-machine connection (hole plugging and double-sided printing) are adopted to perform hole plugging and double-sided printing of the circuit board. The existing three-machine connecting-line silk screen printing machine does not detect the plugged holes after plugging the holes, and once an error occurs in a previous procedure or a screen printing plate is plugged, partial holes may not reach the effect of plugging the holes. The product produced in this way must be reworked, so that the production efficiency is reduced, the product quality is influenced, and therefore the plugging positioning structure for the three-machine connecting line screen printing machine is provided to solve the problems.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the plugged holes cannot be detected, and once a previous process has an error or a screen plate is plugged, part of holes may not reach the hole plugging effect, so that the produced product has to be reworked, the production efficiency is reduced, and the product quality is influenced.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a be used for three quick-witted wiring silk screen printing machine consent location structure, includes the silk screen printing machine board and sets up the spacing frame at silk screen printing machine board upside, and silk screen printing machine board upside is provided with a plurality of reference columns that are located spacing frame inboard, spacing frame inboard has set gradually from bottom to top and has dredged black paper, shows printing paper and PCB board, and the PCB board surface is provided with a plurality of consent, still including the installation frame that is located the consent upside, and the installation frame inboard is provided with the printing plate, and the printing plate upside is provided with the scraper.

Preferably, the screen printing machine table upper surface is provided with the shape constant head tank that returns that is located the spacing frame outside, returns the shape constant head tank bottom and is fixed with the magnetic stripe, the installation frame downside is fixed with the iron sheet that can inhale the connection with the magnetic stripe magnetism.

Preferably, the both sides of installation frame all are fixed with the flank board, be provided with the through-hole on the flank board, silk screen printing machine board upside is seted up with through-hole position assorted screw hole, flank board accessible locking bolt fixes on silk screen printing machine board upper surface.

Preferably, plug-in holes corresponding to the positions of the positioning columns are formed in the surfaces of the printing paper and the oleophobic ink paper.

Preferably, the distance from the lower surface of the printing plate to the upper surface of the screen printing machine table is equal to the sum of the thicknesses of the printing paper, the oleophobic ink paper and the PCB.

Preferably, a plurality of positioning holes matched with the positioning columns in position are processed on the PCB.

Preferably, the developing paper includes white paper and matt felt paper for developing colors.

The invention has the beneficial effects that:

1, ink is added to the printing plate and scraped by a scraper, so that the ink can enter the plug hole, and the plug hole is blocked;

2, the invention can detect whether the plug hole is blocked by observing the ink trace on the surface of the developing paper, thereby avoiding the condition of secondary rework caused by unblocked plug hole;

3, the problems that ink interference is caused by ink diffusion and the quality of the PCB is influenced can be solved through the oleophobic ink paper.

Drawings

Fig. 1 is an explosion structure schematic diagram of a taphole positioning structure for a three-machine connecting line screen printing machine provided by the invention.

Fig. 2 is a schematic cross-sectional structural view of a plug hole positioning structure for a silk screen printing machine for three-machine connection lines according to the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

The reference numbers in the figures: the printing machine comprises a 1-installation frame, a 2-scraper, a 3-printing plate, a 4-PCB, 5-positioning holes, 6-hole plugging, 7-display printing paper, 8-limiting frames, 9-positioning columns, 10-screen printing machine table, 11-oleophobic printing paper, 13-side wing plate, 14-locking bolts, 15-iron sheet, 16-magnetic strip and 17-square-shaped positioning grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a taphole positioning structure for a three-machine line-connection screen printing machine comprises a screen printing machine table 10 and a limiting frame 8 arranged on the upper side of the screen printing machine table 10, wherein a plurality of positioning columns 9 located on the inner side of the limiting frame 8 are arranged on the upper side of the screen printing machine table 10, oleophobic ink paper 11, printing paper 7 and a PCB 4 are sequentially arranged on the inner side of the limiting frame 8 from bottom to top, a plurality of tapholes 6 are arranged on the surface of the PCB 4, the screen printing machine further comprises an installation frame 1 located on the upper side of the tapholes 6, a printing plate 3 is arranged on the inner side of the installation frame 1, a scraper 2 is arranged on the upper side of the printing plate 3, and the distance from the lower surface of the printing plate 3 to the upper surface of the screen printing machine table 10 is equal to the sum of the thicknesses of the ink paper 7, the oleophobic ink paper 11 and the PCB 4.

In an optional embodiment, the shape constant head tank 17 that returns that is located the spacing frame 8 outside is seted up to silk screen printing machine board 10 upper surface, returns shape constant head tank 17 bottom and is fixed with magnetic stripe 16, and installation frame 1 downside is fixed with can inhale the iron sheet 15 of being connected with magnetic stripe 16 magnetism, and magnetism through magnetic stripe 16 and iron sheet 15 inhales the setting and is convenient for fix a position and fix installation frame 1.

In an optional embodiment, both sides of the mounting frame 1 are fixed with side wing plates 13, through holes are formed in the side wing plates 13, threaded holes matched with the through holes are formed in the upper side of the screen printing machine table 10, and the side wing plates 13 can be fixed on the upper surface of the screen printing machine table 10 through locking bolts 14.

In an optional embodiment, plug-in holes corresponding to the positions of the positioning columns 9 are formed in the surfaces of the printing paper 7 and the oleophobic ink paper 11, a plurality of positioning holes 5 matched with the positions of the positioning columns 9 are formed in the PCB 4, and the positioning columns 9 sequentially penetrate through the plug-in holes in the surfaces of the printing paper 7 and the oleophobic ink paper 11 and the positioning holes 5 in the PCB 4, so that the printing paper 7, the oleophobic ink paper 11 and the PCB 4 can be quickly positioned and installed.

In an alternative embodiment, the developing paper 7 includes white paper and matt felt paper for developing color, and the printing paper 7 is arranged so that the ink can have marks on the surface thereof, which is convenient for comparing with the position of the plug hole 6 on the surface of the PCB 4, thereby rapidly judging whether the plug hole 6 is blocked.

The working principle is as follows: firstly, laying ink repellent paper 11 in a limiting frame 8, enabling an insertion hole in the surface of the ink repellent paper 11 to be penetrated through by a positioning column 9, then laying printing display paper 7 on the ink repellent paper 11, enabling the insertion hole in the surface of the printing display paper 7 to be penetrated through by the positioning column 9, then laying a PCB (printed circuit board) 4 on the printing display paper 7, enabling the positioning column 9 to be inserted into a positioning hole 5 in the surface of the PCB 4, then clamping an installation frame 1 in a clip positioning groove 17, enabling an iron sheet 15 to be in magnetic attraction connection with a magnetic strip 16, under the condition of partial need, fixing a side wing plate 13 on the upper side of a screen printer machine table 10 through a locking bolt 14 so as to fix the installation frame 1, enabling a printing plate 3 to be attached to the surface of the PCB 4, adding ink on the printing plate 3, scraping the ink through a scraper 2, and enabling the ink to enter a plug hole 6 so as to plug the plug hole 6;

according to the opposite step of above-mentioned installation, take off installation frame 1, through the printing ink vestige on observation show printing paper 7 surface to can detect whether consent 6 is blockked up, avoid then because consent 6 does not blockked up the condition that causes the secondary to do over again, can avoid printing ink to spread through oleophobic printing ink paper 11, the printing ink interference that leads to influences the problem of PCB board 4 quality.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The hole plugging positioning structure for the screen printing machine with the three-machine connection lines is characterized by comprising a screen printing machine table (10) and a limiting frame (8) arranged on the upper side of the screen printing machine table (10), wherein a plurality of positioning columns (9) located on the inner side of the limiting frame (8) are arranged on the upper side of the screen printing machine table (10), oleophobic ink paper (11), printing paper (7) and a PCB (4) are sequentially arranged on the inner side of the limiting frame (8) from bottom to top, a plurality of plug holes (6) are formed in the surface of the PCB (4), the hole plugging positioning structure further comprises an installation frame (1) located on the upper side of the plug holes (6), a printing plate (3) is arranged on the inner side of the installation frame (1), and a scraper (2) is arranged on the upper side of the printing plate (3); the upper surface of the screen printing machine table (10) is provided with a clip-shaped positioning groove (17) positioned on the outer side of the limiting frame (8), the bottom of the clip-shaped positioning groove (17) is fixed with a magnetic strip (16), and the lower side of the mounting frame (1) is fixed with an iron sheet (15) which can be magnetically attracted and connected with the magnetic strip (16); both sides of installation frame (1) all are fixed with flank board (13), be provided with the through-hole on flank board (13), silk screen printing machine board (10) upside seted up with through-hole position assorted screw hole, flank board (13) accessible locking bolt (14) are fixed at silk screen printing machine board (10) upper surface.

2. The hole plugging positioning structure for the three-machine line screen printing machine according to claim 1, wherein plug-in holes corresponding to the positions of the positioning columns (9) are formed in the surfaces of the display paper (7) and the oleophobic ink paper (11).

3. The hole plugging positioning structure for the three-wire connection screen printer as claimed in claim 1, wherein the distance from the lower surface of the printing plate (3) to the upper surface of the screen printer table (10) is equal to the sum of the thicknesses of the printing paper (7), the oleophobic ink paper (11) and the PCB (4).

4. The hole plugging positioning structure for the silk screen printing machine for the three-machine connection lines as claimed in claim 2, wherein a plurality of positioning holes (5) matched with the positioning columns (9) are processed on the PCB (4).

5. The structure for positioning the plug holes of the three-wire screen printer as claimed in claim 2, wherein the printing paper (7) comprises white paper and matt felt paper for color development.