SU424926A1 - THE DEVICE FOR CUTTING OF THE END OF A GRILLED THREADS ON A MOBILE MOLDING MACHINE - Google Patents

Description

one

A device for trimming the ends of weft yarns on a loom is known, which comprises a drive, fixed and movable knives mounted on a shparuty holder.

However, in such a device, due to the increased speed of the movable knife, frequent breakdowns occur, which does not ensure reliable trimming of the ends of the weft threads.

In the proposed device, in order to increase the reliability of its operation, the drive includes a ratchet mechanism for slowing the movement of the knife, and the blades of the knives are set at an angle with respect to the rod.

FIG. 1 schematically shows the proposed device, side view; in fig. 2 - the same, front view.

The device includes a lower shaft 1, a clamp 2, worn on the shaft and mounted with screw 3, the earring 4 in the slot of which is fixed to the feed, and the dog 5 and the bracket 6 with the adjusting stop screw mounted on the floor on which the ratchet 7 and the dog 8 are fixed connected by means of a spring 9 with a pawl 5. In addition, the device comprises a rocker 10 hingedly mounted on a ratchet 7, tgu 11, having in the upper part a ball joint 12 with a needle 13 passing through the slot of the movable knife 14 inserted into the hole cracker 15 mounted on tool holders e shparutoki and fixed with a screw 16, the bar 17 and the square 18, and which fixed the fixed knife 19, the spring 20, worn on the screw 21, through which the movable knife 14 is connected with a fixed knife 19.

During the operation of the loom, the lower shaft 1, with each oscillation through the clamp 2, the bolt 3 and the earring 4, with the help of the pawl 5, turns the ratchet 7 by one tooth. Ratchet,

rotating, through the link 10 and t gu 11 transmits

oscillatory motion of the sliding knife

14, which as far as the ends of the threads

in the mouth of the knives it cuts them off.

The number of cycles of operation of the movable knife per unit of time depends on the number of teeth of the ratchet and the number of revolutions of the main shaft of the machine.

Subject invention

A device for trimming the ends of the weft yarns on a loom, containing a drive, stationary and iodine, mounted on a rod, characterized in that, in order to increase the reliability of the device, the drive contains a ratchet mechanism for slowing the movement of the knife, and the blades of the knives are set at an angle relative to shiarutke.