SU1652019A1 - Wire coil winding device - Google Patents

Abstract

The invention relates to the field of winding of springs, in particular, mechanisms that ensure the clamping of the ends of the flattened tape when winding spirals from them, and makes it possible to increase productivity and reliability by self-adjusting the clamping forces. The device for fastening wire materials while winding spirals contains a cylindrical case fixed on the drive spindle, a mandrel fixed in the case, and a clamp mounted in the corus. The clamping device is made in the form of two eccentrics with gears that are constantly in engagement, one of the eccentrics being spring-loaded, and the housing contains a retainer for securing the mandrel. 4 il.

Description

The invention relates to the field of winding of springs, in particular, to mechanisms that ensure the clamping of the ends of the flattened tape or wire when winding spirals or springs from them.

The purpose of the invention is to increase reliability by self-adjusting clamping forces.

FIG. 1 shows a device for securing a wire during coiling; in fig. 2 is a section AA in FIG. one; Figs 3.4 are the cam position diagrams before and after clamping the wound material (view along arrow B in Fig. 1).

The device for clamping the wire when winding spirals (Fig. 1) consists of a housing 1 connected to the flange 2 by four screws 3. With the help of the flange, the device is mounted on the spindle of the winding machine. A mandrel 4 is inserted into the body hole (Fig. 2) and secured with a latch 5. Bronze bushings 6 are pressed into the body, on which two eccentrics 7 are interconnected by gear wheels 8. At the end of one of the eccentrics there is a square hole 9, which key is inserted to rotate them and to form a gap between them forming the gap. A lever 10 is mounted on one of the gears, fastened to it by a screw 11. The lever is connected to the case by a spring 12. On the mandrel there is shown a spiral 13, one end of which is fixed between two eccentrics and the other end goes to the pick-up mechanism to the tension device.

The device for clamping the wire works as follows.

A key is inserted into the square hole 9 (Fig. 4) of the eccentric and when it is rotated, the rotation from one eccentric cam is transmitted to the other — the gap increases to four eccentricities. The end of the wire 14 is inserted into the gap (FIG. 3, the initial position). Delete key. Under the action of the spring, the rotation of the eccentrics takes place in the opposite direction, thereby selecting the gap between the forming eccentrics and the surface of the wire — pressing and holding the end of the wire occurs.

At the time of starting the machine and the start of rotation of the mandrel under the action of friction forces, additional eccentrics are rotated and the end of the wire is tightened in the direction of tension P. The wire end is self-clamping (Fig. 4).

Thus, the proposed device allows an increase in labor productivity due to reliable, fast and convenient fixing of pain.

five

0

Good size wire sizes

from 0.08 to 1.6 mm.

Claims (1)

Invention Formula A device for winding wire spirals comprising a cylindrical body mounted on a drive spindle with a mandrel mounted therein and means for clamping the end of the wire to be wound, characterized in that, in order to increase productivity and reliability. the expense of clamping self-regulation, the tool for clamping the wire is made in the form of two eccentrics mounted on the front part of the body, on one of which a lever is attached, spring-loaded to the body, and a square hole is made, and the axes of rotation are parallel to the axes of the mandrel and fixed on the eccentric gears interlocking with each other. 5-5 Fig .- /  gpf 610ZW FIG. four