DD147603A3 - AUTOMATIC WIRE CUTTING AND TOWING MACHINE - Google Patents

Abstract

The invention relates to a device for automatic cutting and laying of corrugated wire for Buerstenherstellung, wherein a good separability of the corrugated wire and gleichmaeszige distribution of the wire is achieved when placed on the office production machine. In the apparatus are a feed roller, a pressure roller, a Drahtfuehrung, a knife u. a rotatable drum magazine, which are connected together by gears, chains and other machine elements. The determination of the cutting length of the wire strand is done by adjusting the connecting rod, which is attached to the feed roller. The feed roller and the pressure roller push the wire into the grooves of the drum magazine. After completion of the advancing movement of the feed roller, the cutting of the cable harness and then the drum magazine rotates and places the cut wire strand on the brush maker machine.

Description

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Title of the invention

Automatic wire cutting and laying device for brush production

Field of application of the invention

The invention relates to a device for automatic cutting and uniform laying of corrugated wire for brush production.

Characteristic of the known technical solution

From DE-OS 2552213 a device for brush production is known in which the bristle material is first drawn off via feed wheels from the supply roll and then fed to a cutting device. By switching wheels, which are provided with pawls, the advance of the bristles for an exact length, but this feed device is very complicated by its lever mechanism in its construction and therefore very susceptible to wear. The device described is unsuitable for the production of round or strip brushes, since this device no Auflegeeinrichtung for the cut wire lengths

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216585

contains. This device is suitable only for the processing of plastic bristles on tamping machines for brush production. DE-OS 1632375 includes a device for dividing bristle bundles of predetermined size for brush production, wherein the bristle bundles are distributed by rotatable drums evenly on a conveyor belt. According to this invention, the bristles are already layered in a cut length in a magazine. Thus, this device is not suitable for the processing of corrugated wire, since the individual corrugated wires would interlock with each other so that a separation would be extremely expensive.

Object of the invention

The object of the invention is to obviate the shortcomings described in the prior art and to provide a device which allows corrugated wire for brush production to be processed in order to achieve the monotonous, health-damaging operations hitherto carried out manually automate·

Object of the invention

The invention is based on the object to propose a device for automatically cutting and laying of corrugated wire, wherein a Zusammeneinanderverhaken the wire is minimized. At the same time a uniform distribution of the corrugated wires and thus a uniform stocking density of the brushes should be achieved. According to the invention the object is achieved in that there is a thin diameter wire rod on the supply roll, which already from the outset, the meshing of the wire

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is reduced. This wire strand is withdrawn from the supply roll by a pressure roller and by a feed roller and pushed into a hat of a rotatable drum magazine. After completion of the feed movement, the cutting of the wire strand takes place. The cut wire strand is then progressively lowered by the rotating drum magazine, falling on the brush making machine when the corresponding groove of the drum magazine is vertically downwardly with respect to the brush making machine.

Execution isp-ie.l.

The invention will be explained in more detail with reference to the embodiment shown in the drawing.

Fig. 1: Schematic representation of the automatic Drahtschneide- and Auflegevorrichtung.

An electric motor not shown in FIG. 1 drives a feed roller 1 via a disc to which a connecting rod is attached in a slot, the advancing movement of the wire strand 7 only taking place when the connecting rod moves forward. By adjusting the connecting rod in the slot of the driven pulley, the feed motion can be varied and thus the length of the cut wire rod 7 can be changed. A pressure roller 2 presses the wire strand 7 against the feed roller 1. A wire guide 3 ensures a precise feeding of the wire strand 7 into a groove of the carrier magazine 5 After the feed movement has ended, the set length is cut off from the wire strand 7 by means of the knife 4. The knife 4 is also set by this electric motor via a connecting rod in motion, After cutting off the wire strand 7 is about a

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Bevel gear pair and a Maltese cross driven drum magazine 5 is rotated by a predetermined angle, so that the cut off in a certain length of wire strand 7 from the hat of the drum magazine can be placed on the brush making machine 6. In order to achieve a correct timing, the entire system is driven by a motor, the individual assemblies are connected by gears, chains and other known machine elements so positively that after completion of the feed movement by means of the feed roller 1, first the knife 4 and then the Drum magazine 5 are set in motion. A new cycle is initiated by the renewed movement of the feed roller Λ .

Claims (2)

s- 2'1'65 'claim for invention 1. Automatic wire cutting and Auflegevorrichtung for brush production with a feed roller, a wire guide, a knife and a rotatable drum magazine for placing and distributing the cut wire strands, characterized in that the knife (4) between the drum magazine (5) and wire guide (3) is, wherein the guideway of the wire strand (7) is aligned with the feed groove of the drum magazine (5). Device according to point T, characterized in that the wire strand (7) consists of a bundle of corrugated or smooth wires of metal or plastic. For this 1 page drawings