SU19607A1 - Device for laying out and cutting fabrics - Google Patents

Description

The present invention relates to a device for laying out and cutting fabrics using a movable carriage equipped with grabs for grasping and transporting a fabric.

In order to move the knife in the guide posts, in the proposed device, thickened chain links are used to engage the gear wheels.

In the schematic drawing of FIG. 1 is a side view of the device; FIG. 2- front view of it; FIG. 3 part view of the knife on an enlarged scale; FIG. 4 is a view of a disc with a recess thereon; and FIG. 5-7 is a view of parts for grabbing and releasing a fabric.

On the base 1 of the proposed device, the rails 2 are fastened, at both ends of which the teeth 3 are mounted with a chain 4 moving along them (Fig. 1). On one of the gears 3 there is a pulley 5 with a pass 6, by means of which the gears are set in motion. The slats 2 are provided with grooves 7, in which a square 8 is installed, moved by the gear 9, which is connected to the chain 4. Above the slats on the spans, 10 are fixed toothed coas which are set in motion (Figures 1 and 2). The latter are equipped with

grooves 13 (Fig. 4), which includes the ends of the knife 14 (Fig. 2 and 3). The blade of the knife 14 moves in the guide posts 15. The chain 4 has the thickened links 16 in one place and at the time the chain 4 passes through the indicated thickened links under the gear wheel 11, the latter is caught by the links 16 and is set in motion, which also sets the knife in motion .14. An axis 17 passes through the center of a square 8, on which paws 18 are attached (Fig. 5), with the upper paw attached directly to the axis 17, while the lower paw is fixed to the axis by means of a hinge and equipped with grabs 19 and 20, which serve to hook the teeth 21 and 22. Such a device allows the paws 18 to open to grip and release material. The legs are closed back by means of the spring 23. The bed 1 has protrusions on which the board 24 is laid, which slides the fabric 25 to roll on it 25. On the bracket 26, a piece of fabric 25 is inserted through the guide rollers 27 and caught by the legs 18, which pull it to the other end. When the length of the roll is necessary, the paws 18 abut against the tooth 22,

they open and thereby release the fabric 25 on the board 24. At this moment, the chain 4 with its thicker links 16 passes under the gear wheel 11, which, being connected to the wheel 12, makes one revolution and this samsh lowers and raises the knife 14. The latter cuts the fabric then, by automatically switching the motor, the legs 18, by rotating the chain 4 in the opposite direction, come back, grab the fabric again and pull it into the other end of the table. In this way, pieces of material of the same j length are rolled one onto another. Chain 4, pass back, I with its thickened links 16 scrolled

only the gear wheel 11, which has a ratchet, squeezes.

The subject of the patent.

A device for laying out and cutting fabrics and the like using a movable carriage equipped with grabs for grasping and transporting a fabric, characterized in that thickened links 16 of the chain 4 are used to move the knife 14 in the guides 15 articulated with disks 12, provided with grooves 13.

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