RU2287388C1 - Wire production line - Google Patents

Abstract

FIELD: systems for making wire by slitting belt material.

SUBSTANCE: line includes uncoiling apparatus, belt accumulator, multi-row disc shears for slitting, unit for working wire ribs, wire accumulator, drawing plate unit, coiling apparatus. Line also includes two multi-row apparatuses for twisting wire relative to its axis in different directions. One of such apparatus is mounted in front of unit for working wire ribs, other such apparatus is mounted behind said unit. Unit for working wire ribs has securely mounted sets of coaxial abrasive discs with end working surfaces mutually spaced by gap being less than diagonal of cross section of wire and one set arranged at other side relative to wire in interval between stationary sets with possibility of cross motion. Each set of abrasive discs has rotation drive and drawing drum mounted along the same axis with possibility of engaging with wire passing through gap between abrasive discs.

EFFECT: reduced tension effort, lowered degree of wire tearing off.

2 dwg

Description

The invention relates to equipment for the production of wire by slitting tape material.

A known line for the production of wire containing the unwinder, the installation for butt welding, the tape drive, the correct device, multi-row disc shears for longitudinal cutting of the tape, multi-row processing unit for the edges of the wire, multi-row block dies and winding device. The processing unit of the edges of the wire is used to remove burrs from the edges of rectangular wires formed during the longitudinal cutting of the tape. It contains a rotating abrasive tool, to the surface of which the wire is fed alternately by each rib through a complex system of roller guides (patent RU No. 2102168, B 21 C 1/00, 1995).

The closest is a wire production line containing an unwinder, a butt welder, a tape drive, multi-row disc shears for longitudinal cutting of a tape, a multi-row wire rib processing unit, a multi-row wire storage unit, a multi-row wire drawer and a winder. The processing unit for the edges of the wire consists of two elements installed with the possibility of oncoming reciprocating movement in the longitudinal direction from the drive and having holes for the wire, the diameter of which is smaller than the size of the diagonal of the cross section of the wire. The dies block provides circular wire. The winding device moves the wire during its processing (patent RU No. 2235617, 21 C 43/04, 2004).

A significant effort of the wire tension, necessary for its drawing during cutting, processing of ribs and drawing, created by the winding device, can lead to its breakage and stop the line. Low reliability is especially dangerous with a large number of simultaneously processed wires, for example, with 100-150 wires, which is usually the case in the production of wire by the "fan" method, i.e. by slitting roll material.

The technical result of the invention is to reduce the breakage of the wire by reducing the efforts of its tension.

This is achieved by the fact that the line for the production of wire containing an unwinder, a butt welding machine, a tape drive, multi-row disc shears for longitudinal cutting, a multi-row processing unit for wire ribs, a multi-row wire storage unit, a multi-row wire block and a winding device according to the invention is equipped with two multi-row devices for twisting the wire relative to its axis, one of which is located in front of the processing unit of the edges of the wire, and the other, providing twisting in the opposite direction, placed after the node processing the ribs of the wire, and the processing unit of the ribs is made of at least two stationary sets of coaxially mounted abrasive disks with end working surfaces located from each other with a gap smaller than the diagonal of the cross section of the wire, and one of the same a set mounted on the other side relative to the wire in the gap between stationary sets with the possibility of lateral movement to adjust the position relative to stationary sets s, and each set of abrasive disc is equipped with a rotary drive and mounted coaxially with the drive traction drum having a possibility of interaction with a wire passed through a gap between the abrasive discs.

The invention is illustrated in the drawing, where figure 1 schematically shows a line for the production of wire; figure 2 - node processing ribs.

An unwinder 1 for placing a roll 2 of tape material 3, a device 4 for welding the ends of the tape material end-to-end, a tape drive 5, multi-row shears 6 for cutting material 3 on a wire 7 of approximately square cross section, a first device 8 for twisting the wire, a processing unit wire ribs, consisting of three stationary sets of abrasive discs 9 and two sets of 10 mounted on the carriage 11, movable in the transverse direction (shown by arrow), twisting the second device 12 Ia wire, multi-row drive wire 13, multi-row unit dies 14 and coiler 15.

Each set of disks 9 and 10 consists of abrasive disks 16 with end working surfaces and a traction drum 17 mounted coaxially so that there is a gap a between the working surfaces of disks 16, behind which there is a cylindrical surface of the traction drum 17. Abrasive disc drive (not shown) provides their rotation at a speed that provides a given mode of wire processing. The traction drum 17 is driven by a separate drive, providing a linear speed of 2-5% greater than the wire feed speed, which is necessary for intermediate traction devices that work with sliding. You can also rotate the traction drum 17 from the drive of the abrasive discs through a kinematic transmission.

The line is as follows. A roll 2 of tape material 4 is installed on the unwinder 1, the front edge of which is butt-welded to the rear edge of the previous roll by means of a welding device 4. During the installation of the roll and welding, the line does not stop, since the drive 5 has a sufficient supply of tape material. Further, the material passes between the circular knives of multi-row circular shears 6 and is cut into narrow strips - wires 7 of approximately square section. A multi-row twisting device 8 ensures that each wire is twisted around its axis by a small angle, for example, clockwise. A multi-row twisting device 12 ensures that each wire is twisted around its axis in the opposite direction, as a result of which it returns to an untwisted state. And only the section between devices 8 and 12, where the abrasive disks 16 of the rib processing unit are located, the wire passes by turning continuously, as a result of which uniform abrasive processing of all the edges of the wire and removal of defects concentrated in these zones occurs. The depth of processing is regulated by the size of the gap a between adjacent abrasive discs 16. Traction drums 17 work in sliding mode. The tension of the wire created by them depends on the total number of traction drums and the angle of engagement of each drum by the wire, which can be adjusted by changing the position of the carriage 11. Additional traction is created by abrasive disks 16, which rotate in the direction of movement of the wire, carrying out "passing grinding". As a result of this, firstly, the processing unit of the ribs does not create resistance to the movement of the wire and, secondly, provides its tension, necessary for the operation of the disk shears 6, without the participation of a winding device. This allows you to reduce the load on the wire when drawing through a multi-row block of dies 14, where the wire acquires a circular cross section and where the probability of breakage is highest.

Claims (1)

A wire production line comprising an unwinder, a butt welder, a tape drive, multi-row disc shears for slitting, a multi-row wire rib processing unit, a multi-row wire storage unit, a multi-row wire draw unit and a winding device, characterized in that it is equipped with two multi-row twisting devices wire relative to its axis, one of which is located in front of the node processing the edges of the wire, and the other, providing twisting in the opposite direction, Another thing after the wire rib processing unit, and the rib processing unit is made of at least two stationary sets in the form of coaxially mounted abrasive disks with end working surfaces spaced from each other with a gap smaller than the diagonal of the wire cross section, and one of the same set, mounted on the other side relative to the wire in the gap between the stationary sets with the possibility of lateral movement to adjust the position relative to the stationary sets, while Each set of abrasive disks is equipped with a rotation drive and has a drive traction drum installed coaxially with it, which can interact with a wire passed through the gap between the abrasive disks.

Images