SU821080A1 - Apparatus for cutting sheet material - Google Patents

Description

(54) DEVICE FOR CUTTING SHEET MATERIAL

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The invention relates to the processing of metals by pressure, in particular to installations for cutting sheet metal and can be used in machine-building factories that cut sheet metal into dimensional workpieces.

A device for cutting sheet material is known, comprising a frame with a fixed knife, a movable knife, as well as clamping and anvil assemblies. (.

The disadvantage of the device is that when cutting the cut surface has an unsatisfactory quality, namely: a large bevel angle to the sheet surface, significant waviness, burrs, breaks, face cracks, etc.

The purpose of the invention is to increase the quality of the cut.

This goal is achieved by the fact that the device for cutting sheet material, comprising a bed with a fixed knife, a movable knife, as well as clamping and anvil assemblies, is equipped with a driving carriage carrying at least two cutting elements for pre-cutting the sheet material. placed parallel to the fixed blade, with the carriage mounted in the said guide.

FIG. 1 shows a device for cutting sheet material, the total ID; in fig. 2 is a view A of FIG. I.

The installation comprises a frame 1 with a table 2, a fixed 3 and a movable 4 knives, a clamp 5 and an emphasis 6. Between the clamp 5 and the movable knife 4 there is a driven carriage 7, in which folding tool holders 8 are fixed at least

least two cutting tools 9, for example, cutters, cutters, rope rollers, educational circles, etc. The carriage 7 is able to move along the guide 10, which is made parallel to the fixed blade 3, from an individual drive 11.

or drive scissors using gear 12 (chain, cable, etc.).

The device works as follows. The sheet 13 is fed along the table 2 up to the stop 6 and pressed against the stationary knife 3 by the clamp 5. The drive II is activated, the carriage 7 is moved along the guide 10 by means of the gear 12. At the same time, the tool 9 applies a concentrator to the sheet across its width in the working zone of the knives for example

Claims (1)

Claim A device for cutting sheet material containing an anine with a fixed knife, a movable knife, as well as pressure and stop assemblies, characterized in that, in order to improve the quality of the cut, it is equipped with a drive carriage carrying at least two cutting elements for _{s of} variable incision of sheet material, and the bed is made with. a guide placed parallel to the fixed knife, while the carriage is installed in the specified guide. Sources of information taken into account in the examination 1. Lesnov I. S. et al. Scissors for cutting sheet and long products. Mechanical Engineering ”, 1972, pp. 22–46.