SU33120A1 - A device for automatically grabbing the end of a broken wire. - Google Patents

Description

The fixture is intended for wire drawing machines and serves to keep the end of the broken wire close to the drawing point while simultaneously stopping the null drum. Application. devices also prevent the wire from tangling if it breaks.

FIG. 1 is a side elevational view; FIG. 2 is a front view from the side of the drawing point; FIG. 3-plan and FIG. 4 shows the arrangement of individual parts of the device.

The device consists of a frame 7, fixedly mounted on the frame of the drawing machine and carrying two guides 2-2, along which the slider moves. In the vertical part of the slide 4, the axis 5 is fixedly supported, on which the eccentric 6 freely rotating around it with the lever 7 attached to it and the loaded load 8 is placed. On the reverse side of the eccentric 6 there is a finger 9 moving in the slot 12 of the double-arm // which can swing around axis 10, mounted in slider 4.

At the end of the lever 77 ,. adjacent to the drawing hole, mounted roller 14, rotates on the axis 13, fixed in the lever 77. In the upper part

(166),

the slider 4 on the axis 18 is located the dog 19 with the tooth 20 in contact at the right time with the protrusion 21 of the eccentric 6,

An axle 26 is located in the sub-frame holder 7, carrying sector 25 with fingers 24 and 27 mounted on it. Finger 24 supports dog 19 and bar 23 is connected to axis 22 fixed in slider 4. Finger 27 of 28-31 is connected with the end of rocker arms 32 by turning off the gear coupling 55 of the drawing drum 38 located on the axis 36. The coupling 35, when lowered, engages with the cams of the drive coupling rotating from the common drive of the drawing mill, not shown in the drawing. The dog 39, placed above the upper cams of the clutch 35, can be lowered and engaged with the teeth of the clutch in order to stop the drum. The limiter of the lower position of the co6a4Kvi 5P is the stop 40.

 In the middle part of the slider 4 there is a adjusting screw f6 with a flat head and a nut 77, by means of which the necessary distance between the screw head and the eccentric 6 is established, according to the diameter of the drawn wire. On the lever 77 strengthened bracket 75.

During wire drawing, the slider 4 is in the position shown in FIG. 1 and 3, the roller / being supported by the wire 48 passing under it until the end of the coil of the drawn wire jumps out of the draw point 43-47 or the wire breaks. In the latter case, the roller 14 is lowered, and the opposite end of the lever // raises the finger P and thereby turns the eccentric 6, which presses the wire to the head 16 of the adjusting screw, in the direction of the arrow. The rotation of the eccentric 6 is facilitated by the lever 7 with a load of 8, which also tends to move downward and thereby turn the eccentric. The wire, clamped in the manner described above, carries the eccentric 6, the screw 15 and all parts of the fixture connected with them, as a result of which the slider 4 moves along the guides 2-2 and does not follow the lower end of the link 23 and thereby turns the sector 25 down , lowering the ro 29, connected to the yoke 32. When the yoke is rotated on the axis 33, which is also facilitated by the load 41, connected to the gear coupling 55, the lever of the yoke will lift the coupling 35 and remove it from engagement with the driving coupling without finally stopping the rotation of the drawing drum 38 .

Full stop of the drum occurs under the influence of the dog 39 on the upper part of the gear coupling 35.

After stopping the working drum, raise the load 8 of the lever 7, turns the dial b in the direction opposite to the arrow, and releases the end of the wire from pressure. When turning

The eccentric, in the manner described above, the tooth 20 of the pawl 79, which was not supported at this time by the lowered finger 24, comes into engagement with the protrusion 2 / made on the eccentric b and holds the entire system in a raised position.

Passing the broken end of the wire through the point, the worker places the point in the holder and places the wire in the / 5 clamp, between the eccentric 6 and the screw head f8, then moves the slider 4 using the handle 42 to its original position, due to which the sleeve 35 descends and comes in engagement with the drive clutch. At the same time, the finger 24, when lifting, lifts the free end of the doggie f9 and disengages it from the cam disc b, whereby the roller J4 is lowered onto the wire.

At the end of the coil of wire or with its new break, all the described actions of the apparatus are repeated ./

The subject matter of the invention.

A device for automatically gripping the end of a wire that was broken during wire drawing, characterized by the design of the slide 4, which is movable in the guide beds, on the axis 5 in which the pivot eccentric 5, which serves to press the wire, breaks the double arm / 7 to the upper plane the slide 4, which, with its further movement by the hinge system, the levers are designed to shut down the drawing drum from the operating state. ,, 21st / s .. s / ", -: - Zigzu, S