SU37646A1 - Device for pulling combat springs for weaving machines - Google Patents

Description

The proposed device is designed to tension the combat springs on the machines.

In the imp of FIG. 1 is a front view of the device; FIG. 2 is the same side; FIG. 3 is the same from above.

The device consists of a roller G reinforced in bed A, on which a ratchet B is mounted on one end and a handle D is put on the other. Against a ratchet, a three-arm lever E with a spring 3 attached to the tail of the lever E is mounted on the axis Z, and others to the frame of the device. The two semicircular arms of the lever E serve as dogs designed to prevent reverse rotation through the ratchet B of the roller D when winding. To the roller G is attached. Cable and with a hook K at the end.

To produce tensioning of the spring on the device, the device is installed on one of the sides of the machine so that the ends of the base of the device with their stops / 7 come close to the bar under the machine or to the frame of the machine. Then the hook K is hooked onto the spring, which is tightened by the rotation of the handle D. Cable And, winding on the roller G, there is no hook K, and with it the machine spring of the machine until (337)

walkable limit; when the machine spring is tightened, the lower arm of the lever E with the hook M is pressed against the ratchet by spring 3, whereby the roller G is prevented from rotating in the opposite direction, and this prevents unwinding of the twine and lowering of the spring when the hands are removed from the handle. The machine's spring is retracted by the force of the spring itself using the lever E. To do this, take the handle of the lever E with the hand and make the handle move up and down, which results in the next release and engagement of the other two ends of the lever with the ratchet. When the lever handle is raised up, the other two ends of the lever are lowered down, and the lower end of the lever with the hook M is disengaged from the ratchet, and the upper end is pressed against the ratchet tooth, the income with its end is just up to half of the tooth. At this time, the ratchet, released by the hitch Af, comes into rotation under the action of a spring force and turns on a part of the revolution equal to Ug. ratchet tooth. Then the lever handle is lowered, which causes the ends of the lever at the ratchet to go up, and the upper end with the hook J / is pressed against the ratchet tooth (half the length of the tooth).

The released spring force of the ratchet begins to rotate until its tooth reaches the hook M. Then the handle is re-oscillated to lower the entire spring; for one swing of the handle up and down the ratchet makes a turn on one tooth. A quick swing of the handle makes a quick descent of the spring to the desired limit, after which the hook K is released and the device is removed from the machine.

The subject of the patent.

An apparatus for pulling combat springs for weaving machines, characterized in that it consists of a roller D with a handle D for winding cable I and from a ratchet B with two tongs, designed to prevent the roller from rotating backwards when winding.