CS241238B1 - Device for imitation jewellery buckles making from decorated wire - Google Patents

Abstract

The device is intended for use in industry Jablonecké bižuterie. Its essence lies in that the wire unwound from the spool is in front of the feeder clamped freely in the die rotatably mounted forming rollers, which rotates at each step of the feeder and they push the perimeter surfaces into the top of wire decorating. The invention can be utilized in the appended claims mass production of object from wire using pressing tools.

Description

The device is intended for use in the Jablonec jewelery industry. It is based on the fact that the wire unwound from the spool is clamped in front of the barfeeder into the pressing tool by freely rotatable forming rollers, which rotate at each step of the barfeeder and press the active surfaces on the periphery into the top of the decoration wire. The invention can be used in the mass production of wire articles by pressing tools.

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for the manufacture of bi-chan. wire staples of decorated wire. .......

The wire used to make costume jewelry clips is usually wound with bobbins. Until now, a rolling mill with driven forming rollers with active surfaces on the periphery has been used for wire reduction. On the rolling mill, the wire unwinds freely from the rotatably mounted spool, passes between the uniformly rotating forming rolls, and continuously winds onto the driven spool.

Staples are formed from molded wire in press tools. The wire feeder unwinds a loose rotationally spooled wire and feeds it in steps into a pressing tool in which the staples are bent and separated.

The hitherto used method of making jewelery clips is disadvantageous in particular because it is necessary to wind the wire from the spool to the spool on the rolling mill and to move the spools with the double wire.

The drawbacks of the presently used wire-decorating method are eliminated by the inventive jewelery fastener according to the invention, characterized in that at least one pair of shaping rollers is freely rotatably mounted in front of the feeder into the fastener for the staple forming press with active surfaces on the periphery. the shaft of at least one forming roller in each pair is displaceably disposed in a direction perpendicular to the wire feed direction. The wire unwound from the spool is gripped by at least one pair of freely rotatable forming rollers with active areas on the periphery between which the wire extends in steps by the barfeeder into a stapler forming die, rotating the forming rollers at each feeder step and pressing into the wire surface.

Equipment for the manufacture of costume jewelery clips. The invention according to the invention makes it possible to increase labor productivity and to reduce the costs associated with the operation of a production plant. Removes handling

·. with wire bobbins, rewinding the wire from bobbin to bobbin when decorating on a rolling mill and in comparison with the existing technology, it enables to reduce the work-in-progress of production and has less demands on production and storage space

The device according to the invention can be used, for example, in the production of scalloped brass staples used for joining chandelier heads into chains. The device is schematically shown in the attached drawing.

They are fixed in the frame 1 by means of extensions 2, 3 of shafts 4, 3 with freely rotatable forming rollers 6, 7 with a diameter of 60 mm. The extensions 2, 3 are displaceable in a direction perpendicular to the direction of movement of the wire 8. The working surfaces 9, 10 of the forming rolls 6, 7 are serrated.

The free end of the wire 8 is unwound from the free-rotating coil 11, inserted between the straighteners. the rollers 12, passing through the gap between the spaced-apart shaping rollers B, 7, and inserted in a conventional manner under the feeder arm 13, between the spaced-apart cutting blades 14, 1S in front of the shaping space of the tools 18, 17, 18.

After being actuated in the drawing not shown in the drawing, the wire 8 is drawn in steps between the clamped, free-rotating shaping rollers 6, 7, which rotate at each step of the feeder arm 13 and push the decorative serration into the wire part 3.

By varying the distance between the forming rolls 6, 7 and changing their relative position, the depth and shape of the knurled decoration of the wire 8 can be changed;

Claims (1)

pi? E D ME D Device for making jewelery staples from decorated wire, characterized in that at least one pair of shaping rollers (6, 7) with active surfaces (9, 10) on the periphery is loosely rotatably mounted in front of the feeder into the stapler forming tool (6, 7). 4) the at least one forming roller (6) in each pair is displaceably disposed, in a direction perpendicular to the feed direction of the wire (8).