SU23307A1 - Shut down machine - Google Patents

Description

The present invention relates to cutting machines equipped with circular knives for cutting material. This machine is designed on the principle of shaped grooves, located on the surface of rotating drums and serving to guide the circular knives mounted on a flexible shaft with the ability to move to the right and left and quickly rotate at an angle.

In the schematic drawing of FIG. 1 shows a general side view of the cutting machine; FIG. 2-cross section in the middle of the cutting machine; FIG. 3 is a longitudinal section of it along the line ab of FIG. one; 4 is a longitudinal section through it with d in FIG. one; FIG. 5 is a general sketch of the drum for the templates with half-mounted one-piece templates on the shaft; FIG. 6 is a diagram of the transfer mechanism on the right side of the machine; FIG. 7 diagram, transmission mechanism on the left side of the machine.

This cutting machine is intended for cutting fabric, leather and other materials. The machine is designed to be triple with drums 1,2,3 (Figs. 1 and 2), cast from light metal, with longitudinal grooves 4 and 5 bolts reinforcing the templates b at any place of the drum (Fig. 5). The one-piece patterns 6 are molded or cut from copper sheet or brass with a polished edge that serve as guide grooves 13 for the disc knife / O when installing the templates b on the drum at a distance of / Id mm wider than the thickness of the disc knife. The latter has shoulders (Fig. 3) a little wider than the figured groove 13 and, therefore, is prevented by its fenced edges from sticking and jams in the figured grooves 13. The disk knives 10, 12 are worn on the steel faceted bars 14 (Fig.Z) with polished surface and have the ability to move right and left along the entire length of the bar 14. The ends of the latter are connected to the thread with flexible shafts 15, which at a certain height are held by forks 16 (Fig. 3 and 4J on the springs 17 and 18 (Fig. 2), enabling bend the flexible shaft 15 and rotate the disk The knife // is in an oblique position with the voltage arising from the influence of the patterned grooves of the template on the knife disk, when oblique and oval cutting.At the same time, the spring 18 presses the fork 16 and the disk knives to the figured grooves of the templates 6 the part of the plug 19 from the bottom 20 allows the top part of the plug 19 (Fig. 2) to rotate and move away from the bottom part 20. The forks 16 are mounted on the spigot 21 movably (Fig. four). To fit the material of single or multi-row drums f, 2,3, are inserted into the frames of the ROOMS and adjusted by means of the wheel 7, the screw 8, the worm gear 9 and the screw (Fig. 1). The material for the cut is supplied by the shafts 22 having a galvanized surface 23 (Fig. 2), but for the sharp cutting ovals the material is transferred from one shaft 22 to the shaft 22 of the next pair by a wooden shaft 24 on a metal rod 25. The shafts 22 approach the disk knives and are adjusted with a screw and a worm gear. 27. When angularly shaped, in case it cannot be allowed

-Oval circumvention of the angle; in the place of the angle of the figurn groove 13 of the template 6 is made 1.5 mm wider than the blade of the circular knife; therefore, the edge of the latter is fed by the fork 16 through the expanded groove 13 into the space 28 (FIGS. 1, 3, 5) between the template 6 and the drum 2, so that the disk knife stops cutting the material. Continuing the cut, the other side of the corner goes on the next pair of patterns 6 of shaft 5,

Where the advancement of the circular knife is made on the template by narrowing the shaped groove which forces the edge of the circular knife out of space 28.

With a large number of corners and large transverse cutting forms, cutting of a single strip of material can be performed continuously on all three pattern drums I, 2, 3. To do this, insert a transfer shaft 24, 25 into the fork 29 (Fig. -1, 2) and set accordingly curly grooves per drum / 2, 3. If, however, two patterned drums are enough for one type of cut, then a roll 31 of another type of cut material is inserted into the plug 30 on one template drum /, roll 32

complex fitting on two drums 2, 3 is inserted into the fork 29 of the frame. In this case, the closed material on the drum / is transferred from the roll 31 automatically by the conveyor 33 to the stitching workshop, and the material from the roll 32 is covered with pattern drums 2, 3 and transmitted by the conveyor 33 (Figs. 1 and 2).

For easy and fast cutting of material with blunt disk knives, the latter must rotate at a high speed, for which purpose the electric motor 34 is mounted on a stand 35 on the right frame of the frame and is connected directly to the end of the flexible shaft 36, which rotates the disk legs (Fig. 1, 2 ).

The electric motor passes or chain 37 transmits the rotation to the flexible shafts 38 and 39 (Fig. 6), from where the pulley on the flexible shaft 38 through the pulley 40 (with a diameter increased ten times), transmits significantly reduced rotation to the patterned drums I, 2, 3 connected between a chain transmission 41. The template drum 5, via a pulley 42 (FIG. 7) mounted on its left end, transmits rotation to galvanized shafts 22 interconnected by a continuous transmission. The conveyor 55 receives a rotation of the pile from the shaft 22-42, and the conveyor 33 from the shaft 22 - 43 (Fig. 6).

The subject matter of the invention.

Cutting machine with circular knives, characterized by the use of a flexible shaft for circular knives 10, 11, 12 and a drum with shaped grooves on the surface, serving to guide the knives.