SU33523A1 - Devices for cutting fabric flooring - Google Patents

Description

The proposed device for cutting fabric flooring is provided with a band knife placed in a tube having both oscillatory and reciprocating movements. The end of the ribbon knife is placed in the recess of the ruler, connected to the bracket and the electric motor.

In FIG. 1 shows a longitudinal vertical section of the device; FIG. 2 is the same horizontal cut; FIG. 3 and 4 are two variants of the ruler-crossbar (in cross section).

Bracket 2 (Fig. 1) is attached to the ruler 7 with a vertical electric motor 3 mounted on the ball bearings, whose shaft 4 passes through the brace 2 and the process of the rail tire 5 on its left side. At the end of the shaft 4, there is an eccentric cam 6, located in the fork 7, having on its opposite sides two rods S serving as guides for the fork 7 (Figs. 1 and 2).

Above the fork 7 is a spring I fixed to it with JO pins. Above

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spring 9 is placed plate 7 / with JO pins fixed in it and above it is elastic plate J2, which can come into contact with the same elastic plate J3 attached to plate M, in turn attached to handle / 5. At the left end of the handle 75 there are guides 76 for the vertical pin 77, which is a continuation of the process 5 of the rail 7.

The handle 75 is attached to a thin-walled steel pipe J8, having a longitudinal slot J9 at the bottom, through which the band 20 passes, having tension screws 27 at the ends with nuts 22 and thrust tips 23 of the J8 pipe.

At the right end of the pipe J8 there is a handle 24, clutching the end of the pipe J8 with a sprout 25 passing under the roller 26 mounted in the bearing struts 27, and spring 28. The flooring Zv is placed on the table 29. The ruler-rail 7 (Fig. 3 and 4) is provided with slots 57 for the knife 20. In operation, the ruler-tine 7 is mounted on the table 29 at a desired distance from its end. A first flooring sheet is laid on it and its end is pulled to any mark on the other end of the table, so that there is a certain desired distance between the mark and ruler 7; the motor 5 and the spike 25 of the tube 18 are inserted under the roller 26, and the other end of the pipe 18 is released by the handle 75, so that the guides 76 fall onto the pin 77. The flooring presses the handle 75 so that the elastic plates 12 and 13 come due to the fact that the plates 77 and 12, fastened to the plug 7, receive from it oscillatory movements, communicated to it by the eccentric 6 of the motor 3, these movements are transmitted through the handle 75 to the tube 18 together with the belt knife 20 fixed on it, so that this knife does about fifty oscillations per second , Cuts the fabric covering.

When the tube 18 oscillates to the right and to the left, during the cutting process, its process 25 rolls along the roller 26, which is slightly pressed by the spring 28.

After the cut of the first canvas, the flooring is laid on / laid on this canvas, and the second one is laid on it, above the floor; then release the pipe 18 in the manner described and repeat the same operation a second time, etc., with the motor running.

Since there are often defective places in the flooring material, you can move the crosswalk to the desired place and cut it, which saves material.

The subject matter of the invention.

1. A device for cutting fabric flooring, characterized in that it consists of a pipe 18 with a slit 19 for accommodating a band knife 20 provided with a process 25 securing one of the ends under the roller 26 and a handle 75 with a guide 16 and a pin 77 at the other end for vertical movement of the pipe 18, in order to lower the knife on the fabric and to communicate the pipe 18 with the knife 20 longitudinally - returning oscillator movement from the eccentric mechanism.

2. With the device indicated in clause 1, the use of the ruler-line 7, provided with a recess to accommodate in it the end of the band knife 20 when lowering the knife on the fabric.

3. The form of execution of the eccentric mechanism mentioned in paragraph 1, characterized in that the handle 75 of the pipe 18 is provided with an elastic plate 75, which is in contact with the handle 75 on the handle with the same elastic plate 72 placed on the fork 7 of the eccentric cam 6, in order to communicate the handle 75 and the tube 18 with a knife 20 oscillatory movement. to the author's testimony of I. F. Mukhartov, I. M. Rykdin and D. D. Churabo, No. 33523