SU1720813A1 - Disc shears - Google Patents

Abstract

The invention relates to the processing of materials by pressure and, in particular, to equipment for longitudinal cutting of sheet metal and non-metal sheet materials (plastics, fibreboard, etc.). The purpose of the invention is to improve the service conditions of disc shears and improve the quality of products. On the bed 1 parallel to the drive shaft 2 a cantilever rod 4 is fixed. The case 5 in the form of two beams connected by a holder is mounted on the cantilever rod 4 with the possibility of movement along its axis. At the ends of the beams are located in the bearing assemblies 9, 12 axis 10,13 circular knives (DN) 11.14. The beams are located on different sides of the cutting plane. A connecting shaft 15 connected to the drive shaft 2 is passed through the hollow axle 13 of the DN 14. Such an embodiment of disc shears improves the conditions for dismantling DNs, reduces the time for their retooling due to their location in one case. The presence of an eccentric sleeve 17, located in the bearing assembly 9 for rotation and reciprocating movement along the axis 10 of the DN 11, allows adjustment of the overlap and the gap between the legs. 1 hp f-ly, 4 ill.

Description

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The invention relates to the processing of materials by pressure, in particular to equipment for longitudinal cutting of sheet metal and non-metallic sheet materials.

The aim of the invention is to improve the service conditions by simplifying the dismantling of the knives, as well as improving the quality of the products obtained.

FIG. 1 shows disc shears, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. one; in fig. A - section BB in FIG. one.

Disc shears contain frame 1 with a drive. The end of the drive shaft 2 protrudes at the end 3 of the frame 1. At the same end 3 above the shaft 2 and parallel to it a cantilever rod 4 is rigidly fixed. On the latter, the body 5 of the disk-blade unit is placed with the possibility of reciprocating movement along it and fixing it. The housing 5 is made in the form of two beams 6 and 7, rigidly connected at one end with the yoke 8. At the free end of the beam 6 there is a bearing unit 9 of rotation of the axis 10 of the disk knife 11, and at the free end of the beam 7 is located the bearing unit 12 of the hollow axis 13 of the disk knife 14. A connecting shaft 15 connected to the end of the drive shaft 2 by a clutch is passed through a hole in the hollow axis 13. The disc shears are also provided. a knot for adjusting the overlap h and the gap A of the circular knives, made in the form of an eccentric sleeve 17 installed in the bearing assembly 9 for rotation and reciprocating movement along its axis. When this disk knife 11 is rigidly connected with the axis 10.

Disk scissors work as follows .. Include drive disk scissors. The shaft 2 begins to rotate with the disk knife 14 on the connecting shaft 15. The material is fed to the disk shears, its orientation along the end 3 of the bed, serves as a side stop, and passes through the disk knives 11 and 14, while cutting it into strips : ka. bearing units 9 and 12 are located on different sides of the cutting plane, the cut strips are moved one year by a rod 4, a friend above it. When zatug; onii knives or change the size of the material, the material rotates the eccentric sleeve 17, thereby adjusting the overlap h of the circular knives 14, and move it along its axis, adjusting the gap clearance D,

If it is necessary to change the width L of the cut strip of material, the case 5 of the disk-blade unit is moved along the axis of the cantilever rod 4 by the required value L and fixed, and the floor is axis 13

moves along the connecting shaft 15. At the same time, the cutting forces acting on the disk knives 11 and 14 are partially absorbed in the case of the disk knife unit 5, which leads to a decrease in the bending moment,

acting on the drive connecting shaft 15, no additional time is required for adjusting the circular knives 11 and 14, since they are moved in their entirety as a block.

Claims (2)

1. Disk shears containing a frame with a drive and a block of circular knives associated with the frame in the same housing with placed in it on the axes in the bearing nodes interacting with each other idle and driven knives, characterized in that, in order to improve the conditions of service, they are equipped with a cantilever bar fixed rigidly on the frame parallel to the axis of the drive shaft, the axis of the driven disk knife is made hollow translational movement along the axis of the drive shaft, the housing is made in the form clips and two beams located on different sides of the cutting plane, one ends of which are rigidly connected by a clip, on the free ends of which are located the bearing units of the axes of the circular knives, at the same time, the casing of the housing is located concentrically to the console rod with the possibility of reciprocating movement along its axis and fixation. 2. The scissors in accordance with claim 1, which means that, in order to increase the quality of the cut-off lobes, they are equipped with a knot for adjusting the overlap and the integumentary gap of the circular knives, which are open in the form of an eccentric sleeve and located in the bearing unit of the idler circular knife with the possibility of rotation, back and forth movement relative to the axis of the circular knife and fixation. five 6