CN112389079A

CN112389079A - Double-sided PCB printing hole plugging prevention printing device and method

Info

Publication number: CN112389079A
Application number: CN202011392708.8A
Authority: CN
Inventors: 徐正武; 祝文贵; 陈泽和
Original assignee: Yiyang Mingzhenghong Electronics Co ltd
Current assignee: Yiyang Mingzhenghong Electronics Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-02-23

Abstract

The invention discloses a double-sided PCB printing plug hole preventing printing device and method, wherein a plate turnover device comprises an upper clamping plate and a lower clamping plate; the upper clamping plate and the lower clamping plate are connected with a rotating device, and the rotating device is connected with a telescopic device; a first material sensor is installed on one side of the plate turnover device. The invention realizes the continuous printing and manufacturing of the double-sided PCB, effectively prevents the hole plugging problem of the PCB and effectively improves the yield of the PCB.

Description

Double-sided PCB printing hole plugging prevention printing device and method

Technical Field

The invention relates to the field of PCBs (printed circuit boards), in particular to a device and a method for printing a double-sided PCB through a hole plugging preventing hole.

Background

When the printed PCB is printed, the ink can penetrate into the through holes punched in advance on the PCB. If only one side is printed, after the PCB is printed, when the PCB is developed, the developing solution can enter the end which is not blocked, and the ink can be washed away by the through hole. But when the PCB board carries out two-sided printing, the through-hole both ends all are blockked up by printing ink, when developing this moment, and the printing ink in the through-hole can not be washed out to the developer solution, can lead to the follow-up preparation of PCB board to go wrong, influences the yields of PCB board.

Disclosure of Invention

The invention aims to provide a double-sided PCB printing hole plugging prevention printing device and method, which realize continuous printing and manufacturing of double-sided PCBs, effectively prevent the hole plugging problem during PCB printing and effectively improve the yield of PCBs.

In order to solve the problems, the technical scheme of the invention is as follows:

the utility model provides a two-sided PCB board printing prevents consent printing device, includes two parallel arrangement's conveyer belt, forms the printing interval between the conveyer belt, installs first circuit board printing machine, plate turnover, air knife and second circuit board printing machine along conveyer belt direction of transfer in proper order.

In a further improvement, the plate turnover device comprises an upper clamping plate and a lower clamping plate; the upper clamping plate and the lower clamping plate are connected with a rotating device, and the rotating device is connected with a telescopic device; a first material sensor is installed on one side of the plate turnover device.

In a further improvement, the rotating device is a motor, and the telescopic device is a cylinder.

In a further improvement, a supporting plate is arranged below the second circuit board printing machine, supporting nails are fixed on the supporting plate, and a lifting device is arranged at the bottom of the supporting plate; and a second material sensor is arranged on one side of the supporting plate.

In a further improvement, the lifting device is an air cylinder.

In a further improvement, the air knife is mounted above the conveyor belt.

A double-sided PCB printing plug hole preventing printing method comprises the following steps:

firstly, printing the front side of a PCB by a first circuit board printer;

secondly, the first material sensor senses the PCB, and the plate turnover device is controlled to grab the PCB and rotate 180 degrees;

step three, when the PCB passes through the air knife, the ink in the plugged through hole in the PCB is blown out by the air knife;

and step four, the second material sensor senses the PCB, the supporting plate supports the PCB through the supporting nails, and the second circuit board printer prints the reverse side of the PCB, so that the PCB is printed.

The invention has the advantages that:

the invention realizes the continuous printing and manufacturing of the double-sided PCB, effectively prevents the hole plugging problem of the PCB and effectively improves the yield of the PCB.

Drawings

FIG. 1 is a schematic side view of the present invention;

fig. 2 is a schematic top view of the conveyor belt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 and 2, the double-sided PCB printing device for preventing the via holes comprises two conveyor belts 1 arranged in parallel, a printing space 2 is formed between the conveyor belts 1, and a first circuit board printer 3, a flap device 4, an air knife 5 and a second circuit board printer 6 are sequentially installed along the conveying direction of the conveyor belts 1.

The plate turnover device 4 comprises an upper clamping plate 7 and a lower clamping plate 8; the upper clamping plate 7 and the lower clamping plate 8 are connected with a rotating device 9, and the rotating device 9 is connected with a telescopic device 10; a first material sensor 11 is arranged on one side of the plate turnover device 4. The rotating device 9 is a motor, and the telescopic device 10 is a cylinder.

A supporting plate 12 is arranged below the second circuit board printer 6, supporting nails 13 are fixed on the supporting plate 12, and a lifting device 14 is arranged at the bottom of the supporting plate 12; a second material sensor 15 is mounted on one side of the pallet 12.

The lifting device 14 is a cylinder. The air knife 5 is installed above the conveyor belt 1.

step one, a first circuit board printer 3 prints the front side of the PCB;

secondly, the first material sensor 11 senses the PCB, and controls the plate turnover device 4 to grab the PCB and rotate the PCB for 180 degrees;

step three, when the PCB passes through the air knife 5, the ink in the plugged through hole in the PCB is blown out by the air knife 5;

and step four, the second material sensor 15 senses the PCB, the support plate 12 supports the PCB through the support nail 13, and the second circuit board printer 6 prints the reverse side of the PCB, so that the printing of the PCB is completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a two-sided PCB board printing prevents consent printing device which characterized in that, includes two parallel arrangement's conveyer belt (1), forms printing interval (2) between conveyer belt (1), installs first circuit board printing machine (3), flap device (4), air knife (5) and second circuit board printing machine (6) in proper order along conveyer belt (1) direction of transfer.

2. The double-sided PCB printed taphole printing device according to claim 1, characterized by the fact that the flap means (4) comprises an upper plate (7) and a lower plate (8); the upper clamping plate (7) and the lower clamping plate (8) are connected with a rotating device (9), and the rotating device (9) is connected with a telescopic device (10); a first material sensor (11) is arranged on one side of the plate turnover device (4).

3. The double-sided PCB printingsto prevent hole printing device of claim 2, characterized in that said rotating means (9) is a motor and said telescoping means (10) is a cylinder.

4. The double-sided PCB printing taphole printing device according to claim 1, wherein a pallet (12) is installed below the second circuit board printer (6), a support pin (13) is fixed on the pallet (12), and a lifting device (14) is installed at the bottom of the pallet (12); a second material sensor (15) is arranged on one side of the supporting plate (12).

5. The double-sided PCB printing taphole printing device according to claim 4, wherein the lifting means (14) is a pneumatic cylinder.

6. The double-sided PCB printing blind hole printing device according to claim 1, wherein the air knife (5) is installed above the conveyor belt (1).

7. A double-sided PCB printing hole plugging prevention printing method is characterized by comprising the following steps:

firstly, a first circuit board printer (3) prints the front side of the PCB;

secondly, the first material sensor (11) senses the PCB, and the plate turnover device (4) is controlled to grab the PCB and rotate 180 degrees;

step three, when the PCB passes through the air knife (5), the ink in the plugged through hole in the PCB is blown out by the air knife (5);

and step four, the second material sensor (15) senses the PCB, the supporting plate (12) supports the PCB through the supporting nail (13), and the second circuit board printer (6) prints the reverse side of the PCB, so that the printing of the PCB is completed.