Paint film scriber

Abstract

The invention provides a paint film scriber, and belongs to the technical field of paint film adhesive force detection. By using the paint film scriber, the problem that the existing paint film scriber is low in detection accuracy is solved. The paint film scriber comprises a first scribing plate, a second scribing plate and a locating piece can be absorbed on a paint film test plate; the first scribing plate is provided with multiple first scribing slots arranged in parallel; the second scribing plate is provided with multiple second scribing slots arranged in parallel; one end of the first scribing plate and one end of the second scribing plate are both arranged in the locating piece in a sleeving manner, and both the first scribing plate and the second scribing plate can rotate around the locating piece; when the first scribing plate and the second scribing plate are superposed, the first scribing slots are perpendicular to the second scribing slots. The paint film scriber can detect the paint film test plate placed vertically or aslant, and can improve the detection accuracy of the paint film adhesive force.

Description

technical field [0001] The invention belongs to the technical field of paint film adhesion detection and relates to a paint film scratcher. Background technique [0002] The most commonly used tester in paint testing is a paint film crosser for testing adhesion, but the paint film crosser in the prior art cannot ensure that the blade is perpendicular to the test board when crossing, because the blade is in contact with the test board surface. If the angle is different, the cutting depth of the blade into the test board is inconsistent, that is, the cross-section of the cutting is inconsistent, resulting in different destructive power to the paint film on the surface of the test board during cutting, which eventually leads to inaccurate test results. [0003] For the above existing problems, people have made various improvements, and some have applied for patents, such as the new type of paint film cross-hatch fixture disclosed in Chinese patent documents [application number:...

AI Technical Summary

Problems solved by technology

However, for the cross-cutting device of this structure, when testing, the paint film test board needs to be placed horizontally on the table, and then the steel plate is placed on the paint film test board, and then cut with a cutting knife, that is, the cross-cut of this structure The scratcher can only detect the paint film test board placed horizontally, but for the paint film test board placed vertically or inclined, the scratcher with this structure cannot accurately mark the line, thereby reducing the adhesion of the paint film. Detection accuracy; at the same time, the scratcher with this structure can only draw parallel lines on the paint film test board, but cannot draw staggered grid lines, so that the results of paint film adhesion detection have The problem of low precision

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