PCB surface treatment device based on thermistor processing

Abstract

The invention discloses a PCB surface treatment device based on thermistor processing in the technical field of resistor processing, and the device comprises: a PCB, wherein the surface of the PCB isprovided with a bulged residual material; a softening assembly which comprises a cylinder body, wherein a heat conduction shell is embedded in the surface of the cylinder body, the heat conduction shell is of an arc-shaped structure, and the heat conduction shell partially extends out of the outer side of the cylinder body; and ejection assemblies which are arranged at the two ends of the cylinderbody. A high-temperature heat conduction shell makes contact with one side of the protruding residual material, the high temperature enables the protruding residual material to be locally softened, meanwhile, hot air in the heat conduction cavity is guided into the heat transfer pipe through the heat transfer pipe, heat is conducted into the hollow pipe, the ejector rod is driven to move out obliquely upwards, and the protruding residual material which is just softened and separated is ejected away; the cutting blades are arranged on the cylinder body, so that the cutting blades cut the separation position of the cylinder body and the protruding residual materials, the protruding residual materials are completely removed from the surface of the PCB without damage, the surface treatment quality is guaranteed, damage to the PCB is reduced, and the rate of finished products is increased.

Description

technical field [0001] The invention relates to the technical field of resistance processing, in particular to a PCB surface treatment device for processing based on thermistors. Background technique [0002] Thermistors are a type of sensitive components, which are divided into positive temperature coefficient thermistors and negative temperature coefficient thermistors according to the temperature coefficient. A typical feature of a thermistor is that it is sensitive to temperature and exhibits different resistance values ​​at different temperatures. The higher the temperature of the positive temperature coefficient thermistor is, the larger the resistance value is, and the lower the resistance value of the negative temperature coefficient thermistor is when the temperature is higher, and they belong to semiconductor devices. [0003] When the PCB board is processed, the surface may have raised residues due to the low quality of the production. Generally, the burrs or pro...

AI Technical Summary

Problems solved by technology

[0003] When the PCB board is processed, the surface may have raised residues due to the low quality of the production. Generally, the burrs or protrusions on the surface of the PCB board will be removed after the PCB board is formed. At present, most of them are cleaned by scrapers. The operation is carried out, but the scraper cannot effectively remove the thicker raised residue, either because the excessive force causes the PCB board body around the residue to collapse, or because the applied force is too small However, the protruding material cannot be completely removed, which reduces the quality of the finished product of the PCB. Therefore, we propose a PCB surface treatment device based on thermistor processing.

Images