SU402175A1 - DEVICE FOR MANUFACTURING BINDERS FROM ISOLATED WIRES - Google Patents

Description

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This invention relates to process equipment for the production of radio components. BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION There are known devices for making jumpers from insulated wire, which include a wire feed mechanism with a spinneret, a die with a groove for fixing and guiding the wire, a punch with knives for cutting off the workpiece, cutting the insulation, bending the ends of the jumpers and removing the insulation from the bent ends, and the drive mechanism .

The purpose of the invention is to cut the insulation around the entire circumference of the wire and increase the reliability of the device.

The proposed device is characterized in that it is equipped with movable knives mounted on a matrix, on the working surface of which protrusions are made with sharp edges, the cutting edges of the knives and the sharp edges of the matrix projections adjoining the cutting edges of the punch blades, forming a cavity between the die of the wire feeder and the movable knives of the die, the guide pivotally attached to the knives of the punch is hinged.

FIG. 1 shows the described device, a general view; in fig. 2 - a matrix and a punch in a working position.

The device includes a drive mechanism 1, a wire straightening mechanism 2, a wire feeder 3 with a cutting knife 5 located in the housing 4 in the form of a die for guiding and cutting the wire 6. In the housing 4 there is a die 7 with a groove 8 for

fixing and guiding the wire.

The matrix is made with two protrusions 9 with sharp edges, and the width of the protrusions is equal to the diameter of the conductor.

The matrix is set pressed to it

spring 10 movable knives I with a groove 12 for guiding the wire and an edge 13 for trimming the insulation.

The knives 11 cover the protrusions 9 of the matrix 7 in such a way that their cutting edges, adjacent to the cutting edges of the projections of the matrix, form a hole. The groove 12 of the blades, adjacent to the groove 8 of the die, forms a common groove for guiding the wire. A guide 14 is made on the blades of the die. Between the cutting knife 5 and the movable blades 11 of the die, a guide 15 is mounted, pressed by the spring 16 up to the stop 17. In the guide there is a wire groove. In case 4, a slider 18 is mounted on which a punch 19 with knives 20 is attached. The knives 20 have a groove 21 which guides the drive during its feeding and a groove 22 guiding it during the folding of the ends of the web. The intersection of the grooves forms an edge for trimming insulation.

On the punch 19 is installed the clamp 23, preloaded by the springs 24. Through the hole in the clamp passes the column 25 with the leveling plate 26, the preloaded spring 27.

On the slider 18 rigidly reinforced ejector 28, pushing the finished jumper 29 from the matrix.

The slider is driven by the cam 30 and the lever 31 pressed by the spring 32.

The device works as follows.

The wire 6 through the cutting knife 5 is fed into the hole formed successively by the groove of the guide 15 and the groove 21 of the knives of the punch 20, the groove 8 of the matrix 7, the groove 12 of the movable knives 11 of the matrix and the groove of the leveling plate 26. From the cam 30, the lever 31 moves the slider 18 to the side the matrices together with the punch 19 with the knives 20 fixed on it. These knives, in contact with the cutting knife 5, cut off the workpiece and the retraction guide 15 begin to bend the ends of the cut workpiece, press them to the sharp edges 9 of the matrix 7 and to the cutting edges 13 basement Cutting knives 11. In this case, the cutting edge formed by the grooves 21 and 22 of the knives of the punch 20 cuts into the insulation and cuts it from the opposite side. Thus, when closing the edges 9, 13 and the cutting edges of the punch knives, a cavity is formed corresponding to the cross section of the conductor, which provides for undercutting the insulation along the entire length of its circumference. At this point, the knives 20 begin to press against the stop 14 of the matrix knives 11, after which these knives begin to move simultaneously with the punch knives, shrinking the cropped insulation from the ends of the web 29.

At the moment when the insulation is removed, the punch 19, pressing the end of the column 25 with the plate 26, moves it, the plate 26

presses the finished jumper to the bottom of the groove 8 of the matrix and podrikhtovyvaet its length. Under the action of the cam 30 and the spring 32, the slider 18 with the ejectors 28 mounted on it moves with the lever 31 in the opposite direction and, in contact with the bridge, drops it out of the matrix groove 8. At the same time, the clamp 23 and the column 25 with the plate 26 under the action of the springs 24 and 27 occupy a position in which space is freed up allowing the jumper to freely fall.

Upon further movement of the cam 30, the slider 18 under the action of the spring 32 and the lever 31 occupies the initial position - the position of the wire feed.

Subject invention

An apparatus for making jumpers of insulated wire, comprising a wire feed mechanism with a spinneret, a die with a groove for fixing and guiding the wire, a die with knives for cutting the workpiece,

cutting off the insulation, bending the ends of the jumpers and removing the insulation from the bent ends and the drive mechanism, characterized in that, in order to cut the insulation along the entire circumference of the wire and increase the reliability of the device, it

equipped with movable knives fixed on a matrix, on the working surface of which protrusions with sharp edges are made, and the cutting edges of the knives and the sharp edges of the projections of the matrix are adjacent to the cutting

the edges of the punch knives form a cavity for placing the wire, and a guide kinematically connected to the punch knives is hinged on the matrix between the wire feeder die and the movable knives of the matrix.

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FIG. 2