A film sample automatic cutting method and device

Abstract

The invention provides a fully automatic cutting method and device for a thin film sample. The fully automatic cutting method includes the steps that a thin film is placed on a set thin film platform,and the thin film is leveled, compressed and fixed through a thin film fixing platform and a pressing plate; then through a spatial mismatch method, an upper thin film cutting system and a lower thinfilm cutting system which are perpendicular to each other and are provided with parallel knives cut the thin film in the longitudinal direction and the transverse direction in sequence to realize accurate cutting of the square thin film sample; opening and closing of a solenoid valve are controlled through circuits and preset procedures so as to achieve fully automatic work of parts such as a pneumatic platform and an air cylinder, and thus fully automatic cutting of the square thin film sample is achieved; and then through a designed thin film fixing platform pushing mechanism, the cut thinfilm sample is pushed out, and the thin film sample is quickly taken down and collected conveniently. By designing a special thin film compressing system, up-down sliding platform system, control system and fixed support part, fully automatic cutting and pushing out of the square thin film sample are achieved specifically according to the fully automatic cutting method for the thin film sample.

Description

technical field [0001] The invention relates to the field of film technology and the field of mechanical equipment, in particular to a method and device for fully automatic cutting of film samples, especially for cutting and sampling square films. Background technique [0002] Today, with the rapid development of science, a large number of films with different functions have been widely used. Among them, BOPP film is the most widely used packaging material because of its high transparency and gloss, non-toxic materials, and stable molecular structure. The function of isolating odor and moisture is widely used in food, medicine, chemical industry and other fields. It is mainly used in product packaging, such as food, cigarettes, tea, electrical appliances, daily necessities, clothing, etc., and has the reputation of "Packaging Queen". [0003] The plastic film used for commodity flexible packaging must meet various requirements of packaging materials, such as good stability, ...

AI Technical Summary

Problems solved by technology

Among them, the manual cutting speed is slow and the precision is poor; the existing fixed-shaped film cutting knife, like a circular knife, has relatively simple processing technology, and the use of stamping to cut the film can also solve some film cutting problems, but more For example, the square film cutting knife has a difficult processing technology, and it is difficult to make the corner of the knife just right, and the film cutting knife by stamping has many disadvantages such as easy wear and tear of the knife edge, and at the same time, it is easy to cause strain on the film when cutting by extrusion , which affects the cutting effect; while the one-way cutting device can only meet the detection requirements of a single direction. If you need to cut a square sample, you need to align and cut again. The cutting steps are cumbersome, and it is not easy to ensure that the two directions of the film sample are perpendicular Consistency of sex and size

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