RU2286870C1 - Wire machining apparatus - Google Patents

Abstract

FIELD: equipment for machining of wire by grinding, said equipment being used for rounding of rectangular section wire ribs and deburring of wires.

SUBSTANCE: apparatus for machining of wire has rotating abrasive wheels arranged in the course of feeding of wire. Apparatus is furnished with two mechanisms for twisting of wire around its axis in opposite directions. One of said mechanisms is disposed upstream of abrasive wheels in the course of feeding of wire, and other mechanism is disposed downstream of abrasive wheels. Each of said mechanisms consists of set of gears rotated by drive, with number of gears corresponding to number of wires which are simultaneously subjected to machining process. Gear is equipped with axial opening for passage of wire and has bypass roller mounted for free rotation thereon in plane extending through axis of gear.

EFFECT: enhanced reliability in operation of apparatus and improved quality of machined wires.

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Description

The invention relates to means for processing wire by grinding, namely for rounding the edges of a wire of rectangular cross section and deburring while processing a large number of wires obtained by the “fan-shaped method”, i.e. longitudinal cutting of strip metal.

A device for processing wire is known, comprising metal brushes mounted for rotation and placed sequentially along the wire feed, as well as sliding guides for wires, made in the form of rings with holes in the periphery for the wires. When refueling the wires into the holes of the ring belonging to each subsequent brush, all the wires are displaced, for example, clockwise, due to which the wires approach the next brush on the other side and the wire is processed from all sides (Patent RU No. 2132249, B 21 C 43 / 04, publ. 22.04.98).

A device for processing wire is known that is used in a wire production line and provides deburring and rounding of ribs, containing a cylindrical abrasive tool and roller pairs placed around it, consisting of rollers with a shaped working surface, forming a rectangular shaped wire rod for each other. Before starting work, a rectangular wire is introduced sequentially into the streams of roller pairs, each time turning it through an angle of 90 °, for example, clockwise. The wire touches the rotating abrasive tool near the middle of the section between adjacent pairs, where it faces the tool with a rib, which results in grinding of this rib. In the next three sections, three other ribs are treated with the same abrasive tool (Patent RU No. 2102168, B 21 C 1/00, publ. 01.20.98).

A guide roller system for each wire contains at least five roller pairs. When processing 100 wires simultaneously, at least 500 roller pairs are required, therefore, such a device is characterized by high complexity and inconvenient in operation. In addition, as the rounding of the ribs of the wire, its suitability for orienting the roller pairs with a rectangular stream is lost.

The closest is a device for processing ribs of rectangular wire with several rotating abrasive wheels located along the wire feed, which is equipped with sliding guides for the wire, made in the form of a comb, facing the teeth to the abrasive wheel, with inclined rectangular grooves in terms of the number of simultaneously processed wires and radial cut for abrasive wheel. The guides can be made in the form of a package of plates arranged obliquely, in which the plates with the contour of the groove of the comb alternate with the plates with the contour of the tooth of the comb. Abrasive wheels can be placed in pairs on different sides of the wire to process one pair of circles of two opposed edges of the wire. Guide combs twist the wire around its axis, due to which all its ribs are processed (Patent RU No. 21585839, 24 V 5/38, publ. 04/27/2001).

The disadvantage of this device is the rapid wear of the slide rails, as a result of which they change shape and lose their ability to twist the wire at a given angle.

The technical result of the invention is to increase the reliability of operation by using means that ensure twisting of the wire, regardless of the shape of its cross section and more resistant to wear than sliding guides.

A device is proposed for processing ribs of rectangular wire with rotating abrasive wheels located along the wire feed, which is equipped with two mechanisms for twisting the wire around its axis in opposite directions, consisting of a series of gears in the number of simultaneously processed wires installed with the possibility of rotation from the drive, each the gear has an axial hole for the wire and a bypass roller mounted on it in a plane passing through the axis of the gear, with the possibility vobodnogo rotation, wherein one mechanism is located before the twisting abrasive wheels along the wire, and the second - after the abrasive wheels.

The invention is illustrated in the drawing, where figure 1 shows a General view of the device; figure 2 - processing ribs by the periphery of the abrasive wheels; figure 3 - the mechanism of twisting.

The device consists of abrasive wheels 1, 2 and 3, which are located along the wire 4 from the shears 5 and touch its end working surface (figure 1) or a cylindrical surface (figure 2), as well as two twisting mechanisms 6 and 7 , one of which is located in front of the abrasive wheels, and the second after them. The spinning mechanism consists of a number of interlocked gears 8 according to the number of simultaneously processed wires installed rotatably from the drive 9, each gear 8 (figure 3) has a bypass roller 10 mounted on it with free rotation in a plane passing through the gear axis and an axial hole 11 for the wire 4.

Each wire 4 of approximately square cross section, obtained by longitudinal cutting of a strip with multi-row circular shears 5, is wrapped around the bypass roller 10 of one of the gears of the twisting mechanism 6 and passed into its hole 11. Then the wire passes near the abrasive wheels 1, 2 and 3, touching their working surfaces . After that, the wire is wrapped around the roller of the corresponding gear of the twisting mechanism 7 and passed through its hole.

When the wire is fed during its processing, the bypass roller 10, which serves as a rolling guide, rotates around the axis of the roller. In addition, the roller 10 rotates with the gear 8, while it rotates the coil that spans it, twisting the wire 4 around its longitudinal axis. Actuators 9 provide twisting of the wire at the same speed and in opposite directions, as a result of which the wire turns out to be untwisted at the exit from the device. And only the section between the mechanisms 6 and 7 the wire passes in a twisted state, so its angular position relative to the abrasive wheels is constantly changing and there is a uniform processing and rounding of all edges of the wire with the removal of burrs formed during cutting.

Claims (1)

A device for processing ribs of rectangular wire, containing rotating abrasive wheels located along the wire feed, characterized in that it is equipped with two mechanisms for twisting the wire around its axis in opposite directions, consisting of a number of gears in the number of simultaneously processed wires mounted for rotation from the drive, with each gear having an axial hole for the wire and a bypass roller mounted on it in a plane passing through the gear axis, with zmozhnostyu free rotation, wherein one mechanism is located before the twisting abrasive wheels along the wire, and the second - after the abrasive wheels.

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