SU1196165A1 - Disc shears - Google Patents

Abstract

1. DISK SCISSES containing mounted on parallel drive shafts with the possibility of moving along their axes and fixing cutting discs on them, which, in order to increase productivity by reducing the time for readjustment, each drive shaft is designed as movable in the radial . the direction of the segments is equipped with a radial movement mechanism. (L with O) Od Sp

Description

2. Scissors according to claim 1, characterized in that the cutting discs are made up of outer and inner rings, the inner ring is made of a material with a modulus of elasticity of 0.2-0.6 elastic modulus of the outer ring, and installed with the ability to interact with the segments of the drive shafts.

96165

3. Scissors on the PP. 1 and 2 are based on the fact that the mechanism of radial movement of the drive shaft segments is made in the form of two truncated pyramids, which are spring-loaded one relative to the other and installed vertically towards each other with the possibility of simultaneously multidirectional movement.

The invention relates to the processing of metals by pressure, in particular to disc shears for the dissolution of wide strips on narrow ones.

The aim of the invention is to increase the productivity of the disc shears by reducing the time for their retooling.

In Fig.1, shows a circular scissors, General view; figure 2 - section aa in figure 1.

Disc shears contain mounted on drive parallel shafts made in the form of interconnected segments 1 and 2, cutting discs consisting of inner 3 and outer 4 rings.

 The outer rings 4 of the cutting discs are made of tool steel with a modulus of elasticity of 2.1 "10 Iffla, and the inner rings 3 are made of brass with a modulus of elasticity of 1.0-10 Sha, constituting 1 0.47 of the modulus of elasticity of the outer ring. Segments 1 and 2 are equipped with radial-displacement mechanisms. from two pyramids 5 and 6 with the opposite direction of the slope in contact with the inner edges of the segments. The mechanism is equipped with a spring 7, in contact with the pyramids 5 and 6, connected in the form of a dovetail tail (figure 2). The movement drive of the pyramids is placed in the headstocks 8 and 9 of the bed (not shown) of the disc shears and transmits the force to the pyramids through shafts 10 and 11, performed with the slots 12, contacting with the corresponding hole in the pyramids 5 and 6. The inner rings 3 of the cutting

discs relative to the shaft segments are fixed against rotation relative to the shaft by a sliding key 13, and the outer ring 4. is fixed from

cranking relative to the inner ring 3 locking screws 14.

Disc shears work as follows

The shafts are made of segments 1 and

2 and through the slots 12 of the shafts are rotated. Through the sliding key 13 and the screws 14, the torque is transmitted to the outer rings 4 of the cutting disks, which. The strip 15 is cut longitudinally. When the settings of the headstock 8 and 9 of the bed are changed together with the shafts 10 and 11 of the disc shears. moved in the direction of the arrows (Fig. 1), while under the action of the spring 7 pyramids 5 and 6 are also speckled, placed in the direction of the arrows. Seg «ents 1 and 2 shafts disc shears for. the dovetail joint is shifted radially to the shaft axis, reducing its diameter. In this case, all cutting discs are simultaneously released from fixation in the axis direction relative to the shaft. Moving the cutting discs in the axial direction relative to the shaft, set them to a new position in accordance with the new setting. Next, bringing the headstock closer together, overcoming the force of the spring 7, the pyramids approach each other.

5 and 6, which in their turn alternate segments 1 and 2 and fix the cutting discs in a given direction. For; a (construction side gaps between the cutting discs lower

and the upper shafts are released by moving the shafts 10 and 11 of the cutting disks of one of the shafts, leaving the disks of the second shaft fixed, then moving the released oiHocHTeHbHo disks fixed, setting the required side clearance between them.

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Further, the fixing is performed: free discs are moved by moving the shafts 10 and 11 towards each other.

5 The use of the invention will allow increasing the performance of disc shears by reducing the time for their retooling.

Aa

fig 2

Claims (3)

1. DISK SCISSORS containing mounting on parallel drive shafts with the possibility of moving along their axes and fixing on them cutting discs, characterized in that, in order to increase productivity by reducing the time for readjustment, each drive shaft is made in the form of movable radially direction of segments equipped with a radial movement mechanism. SU „1196165 2. Scissors according to claim 1, characterized in that the cutting disks are made up of outer and inner rings, while the inner ring is made of material with an elastic modulus equal to 0.20.6 modulus of elasticity of the outer ring, and is installed with the possibility of interaction with drive shaft segments. 3. Scissors according to paragraphs. 1 and 2, with the fact that the mechanism of radial movement of the segments of the drive shafts is made in the form of two truncated pyramids, spring-loaded one relative to the other and set vertices towards one another with the possibility of simultaneously multidirectional movement.