SU35804A1 - Moving device for cutting textile and similar materials - Google Patents

Description

The invention is intended to replace manual labor when cutting textile and similar materials by mechanical means by using a moving device with two closing knives under the action of a release spring and an oscillating movement of a vertical rod, to the end of which a Bowden cable is attached. The rod is driven from the motor by means of a transmission mechanism into which two connecting rods of different lengths are inserted, connected to two rods, which are activated depending on the required amplitude of oscillations of the upper knife by means of a double cartridge. -:

In FIG. 1 depicts a side view of the bottom of the proposed device; FIG. 2 is the same front view; FIG. 3 is a front view of the top of the device; FIG. 4 is the same side view, and FIG. 5-front view of the switching mechanism.

The proposed device for cutting textile materials consists of a platform 7 on four rollers 2 with a stand 3 attached to it, to which a frame 4 is mounted with a rod 5 passing through its fork 5. On the latter there is a spring b, one end abutting against the top fork of the frame and the other into the thrust washer 7. The lower end

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the stem 5 is attached to the appendix of the upper leg 8, pivotally connected to the stand 3 and located above the lower fixed knife 9H The upper end of the rod 5 is attached to the tip 10 of Bowden cable 77 passing through the sleeve 72, placed on the upper fork of the frame 4 (Fig. 1 and 2 ).

The upper part of the device consists of a motor 75, on the shaft of which there is a small gear 14, coupled with a large gear 75 with an eccentric socket. Attached to the latter is a crankshaft with two elbows 6 and 77, on which rods 18 and 19 are mounted, pivotally connected to rods 20 and 27, passing through openings in the upper frame 22 serving as guides for them. A double cartridge 23 is placed between the forks of the frame 22 and serves as a regulator of the oscillation amplitude of the connecting rods by double switching for each stem 20 and 27. At the bottom of the cartridge there is a rod 24 which passes through the guide hole of the lower fork and to which is attached the other end of the Bowden cable 25. Chuck 23 has a tide 26 through which a lever 27 passes, with its end connected to a pivot switch 28, to the other end of which a release spring 2P is attached.

fC lever 27 is attached Bowden cable 30 of smaller diameter than cable 7 / - 25. The other end 3J of the cable 30 is under; goes to the switch 32, consisting of a curved lever (Fig. 1 and 2), mounted on the eccentric 33 (Fig. 5), placed in the bracket 34, which is: "Case 35, which is placed the contact 36, connected by a power cord 57.

The operation of the device is as follows. The device is taken by the handle 38 and the switch 32 is set to the / 7 position (FIG. 1), which causes the clamp 34 to contact the contact 36, and the motor 13 is in operation rotates the gears 14 and / 5, as a result of which the connecting rod 18 from the crankshaft 16 makes oscillatory movements and the rod 20 moves up and down, the double chuck 23 is carried along. The guide rod 2 pulls the Bowden cable 25, which causes the rod 5 to periodically lift the upper blade 8, which is returned to its original position by the spring 6, due to which made; cutting material, between the knives 8 v 9.

When the lever is in position, switching bodies 32 on the letter M, bracket 34 reaches the lower part of body 35 and pulls Troy 30, causing the other end of it (Fig. 3) to pull lever 27 and toggle the pivot switch. By virtue of this, the idler rod 2 / with a small oscillation amplitude begins to operate earlier, and the rod 20 is turned off. The letter C indicates the position of the switch lever 32 when the device is turned off.

The subject matter of the invention.

1. A movable device for cutting textile and similar materials, equipped with two closing knives, characterized in that it consists of a rod 5, a release spring 6 and a Bowden cable 7 / fixed on the end of the rod .5, intended to communicate the necessary movements to the knife 8 (Fig. 1 and 2).

2. With the device indicated in paragraph 1, the use of a motor 13 and a transmission mechanism consisting of a gear train 14- / 5 with an eccentric socket, crankshafts, various sizes of rods 18-19, rods 20-2 / and equipped with a Bowden cable 25-11 a double chuck 23 serving as a regulator of the oscillation amplitude of the knife 8 (Fig. 3 and 4).

3. The form of execution of the knob 8 oscillator amplitude regulator, indicated in paragraph 2, characterized in that the cartridge 23 is provided with a rod double switch 28, one end of which is connected to the spring 29, and the other with a rotary lever 27 and a Bowden cable 30-31 articulated with a switch 52 mounted on an eccentric 55 placed in a bracket 34 located in the housing 55 with a contact 36 and an electric cord 57, which switch 52 is intended to move the rod 28 and periodically disconnect the cartridge 25 from the rods 20 and 21 (figs. 1, 3, 4 and 5)).