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Novel broken film detection device

A detection device and film breaking technology, applied in measuring devices, material analysis by optical means, instruments, etc., can solve the problem of lack of detection devices in automatic film tearing machines, so as to improve the detection accuracy and quality, and improve the quality of tearing films. Effect

Pending Publication Date: 2021-12-24
东莞市卓智精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of film rupture detection device to solve the problem that the existing automatic film tearing machine lacks a detection device after tearing the film to improve the quality of the film tearing

Method used

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  • Novel broken film detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In actual work, the PCB board with the mylar film adhered to the upper and lower surfaces is driven by the conveying roller 6 and advances between the tearing film rollers 2 on the upper and lower sides. Both the upper and lower layers of the mylar film on the PCB board are torn off, and the mylar The film is peeled off the surface of the PCB board under the conveyance of the film moving belt 5, and at the same time, when the PCB board with the mylar film peeled off passes through the film breaking detection fiber 4, the film breaking detection fiber 4 monitors whether the mylar film remains during the film tearing process, so as to judge Whether the dry film is cracked.

Embodiment 2

[0033] Such as Figure 4 As shown, the membrane rupture detection optical fiber 4 is arranged at intervals in the figure, and each interval is controlled between 20 and 30 mm to ensure that the minimum detection width of the device for membrane rupture detection is 30 mm, which can be detected above this width. membrane phenomenon, the membrane rupture detection optical fiber 4 sends a signal to the equipment control system, thereby prompting personnel to make a corresponding response.

Embodiment 3

[0035] The film tearing machine installed with this device also includes a feeding section 7, an upper mylar film moving mechanism 8, a lower mylar film storage frame 9, a discharging section 10 and a temporary storage section 11, wherein the upper mylar film moving mechanism 8 is also inside An upper mylar film storage frame 12 is provided;

[0036] In the whole working process, the PCB board with mylar film passes through the feeding section 7, and is transported to the tearing film detection section through the conveying section, and the torn mylar film is transported to the upper mylar film storage box through the film moving belts 5 on the upper and lower sides respectively. 12 and the lower mylar film storage frame 9, after the stripped PCB board is detected by the film breaking detection optical fiber 3, if there is a film breaking phenomenon, it will be sent to the temporary storage section 11; if the mylar film is completely torn off, the output Material section 10 co...

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Abstract

The invention discloses a novel broken film detection device, and relates to the technical field of PCB production. The broken film detection device comprises a conveying section and a film tearing detection section, wherein the film tearing detection section is mounted at the conveying rear end of the conveying section; the film tearing detection section comprises a discharging frame, a film tearing roller and a film measuring roller wheel, a plurality of broken film detection optical fibers are mounted on the surface of the film measuring roller wheel, and the spacing distance between every two adjacent broken film detection optical fibers is 20-30 mm. According to the device, the broken film detection optical fibers are arranged at the conveying rear end of the film tearing roller, a PCB after film tearing can be detected according to the optical principle, whether mylar film residues exist on the surface of the PCB or not is rapidly detected, and the film tearing quality is greatly improved; wherein the spacing distance between every two adjacent broken film detection optical fibers is 20-30 mm, all residual films with the width larger than 30 mm on the surface of the PCB can be detected, and the detection precision and quality are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of PCB board production, in particular to a novel membrane rupture detection device. Background technique [0002] In the production and processing of electronic equipment involving integrated circuits, the quality of PCB boards is particularly important; conventional PCB boards usually have mylar films attached to their upper and lower surfaces when they leave the factory, and they need to be torn off in the subsequent processing stages; therefore, now In the existing technology, a double-sided automatic film tearing machine is often used to tear it off, but when the existing equipment tears the film, it is prone to incomplete tearing of the film, that is, the phenomenon of dry film rupture, which affects the quality of the PCB board; therefore In order to solve these problems, we designed a new type of film rupture detection device installed in the existing automatic film tearing machine to improve the qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/892B07C5/342B07C5/36
CPCG01N21/01G01N21/892B07C5/342B07C5/36
Inventor 张振
Owner 东莞市卓智精密机械有限公司
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