SU1613251A1 - Guillotine shears for cutting metal - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in metallurgical plants in the processing of rolled strip. Scissors (H) contain a frame 1, in the guides of which a driving support 3 is placed with two springs and knives 6, 7 installed at different heights. Installing the upper caliper (BC) 3 of the knives 6, 7 at different heights and performing a displacement drive (BC) 3 allow sequential cuts with the knives 6, 7, thereby halving the cutting force and decreasing the metal intensity (H). The technological capabilities of H are expanded due to the installation of a two-way drive to move VS 3, i.e. it is possible to simultaneously cut with overlap the rear end of the previous strip and the front end of the subsequent strip with one pair of H, or cut sequentially the rear end of the previous strip and the front end of the subsequent strip with two pairs N. 1 Cp f-ly, 2 ill.

Description

The invention relates to the processing of metals by pressure and can be used in metallurgical plants in the processing of rolled strip.

The aim of the invention is to reduce the metal intensity and expand the technological capabilities of the guillotine shears.

FIG. 1 shows guillotine shears for metal cutting, general view; in fig. 2 shows section A-A in FIG. one.

Guillotine shears contain a bed 1, in the guides 2 of which the upper caliper 3 is installed with two mechanical clamps 4 and 5. The caliper 3 has the possibility of reciprocating movement. On the slide 3, knives 6 and 7 are parallel to each other at different heights. In the lower part of the frame 1, there are two supporting elements 8 and 9 with knives 10

and 11, a two-way actuator 12 for displacing the upper caliper 3. On the upper part of the frame 1, on the axis 13, a lever 14 is mounted, one arm of which is connected to the actuator 12 for displacing, and the other with the upper caliper 3. ...

Scissors work as follows.

When cutting overlapping a strip, the rear end of the previous strip stops in scissors under knife 6. The front end of the next strip overlaps is fed. When the two-way actuator 12 is turned on for a minimum stroke, the lever 14, turning on the axis 13, moves the upper caliper 3 with the clamps 4 and 5 and the knives 6 and 7 along the guides 2 of the frame 1. The clamp 4 abuts the metal, presses it to the supporting element 8 . There is a cut strip knives 6 and 10.

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 In sequential cutting, the rear end of the previous strip stops in the shears under the knife 6. The front end of the subsequent strip is fed into the shears and stops under the knife 7. The two-way drive 12 is turned on for the maximum stroke. The rear end of the previous strip is pressed against the support element 8 by clamp 4 and is cut off by the blades 6 and 10, and the front end of the subsequent strip is pressed against the support element 9 by the clamp 5 and cut off by the blades 7 and 11.

Claims (2)

Claim 1. Guillotine shears for metal cutting, containing frame, knives with cutting edges, one of which is fixed 0 five on the main support element mounted on the frame, and the other on the drive support, placed with the ability to move in the guides of the bed, characterized in that, in order to reduce metal consumption and expand technological capabilities, they are equipped with an additional support element with a knife and an additional knife mounted on the drive support, while the cutting edge of the additional knife installed on the drive support is located below the cutting edge of the main knife. 2. Scissors pop, 1, characterized by the fact that the caliper drive is made two-way. .  . four Jeso material / f t / e.2