RU2232067C1 - Apparatus for cutting wire by blanks - Google Patents

Abstract

FIELD: equipment for making reinforcement for ferroconcrete, namely manufacture of blanks with anchor ends used for dispersed reinforcing.

SUBSTANCE: apparatus includes wire coil holder; mechanism for feeding wire in the form of two rolls, one roll is driven; stationary cutter with guide for wire engaging at least with one movable cutter mounted on rotating disc whose rotation axis is normal relative to wire axis and drive unit. According to invention movable cutter is in the form of cylinder embraced with sleeve, both are mounted on disc along its radius. Thickness of sleeve consist 1 - 1.5 of wire thickness; end of cylinder protrudes relative to end of sleeve by value consisting 1 - 1.5 of wire thickness. Stationary cutter has through cylindrical opening; rotation axis of disc is arranged at level of lower position of wall of said opening.

EFFECT: simplified design of apparatus for making blanks with anchor ends.

6 dwg

Description

The invention relates to equipment for the manufacture of reinforcement for reinforced concrete, in particular for the manufacture of blanks with anchor ends used for dispersed reinforcement.

A device for bending and cutting a wire, comprising a wire feed and bending mechanism in the form of a gear pair mounted on a bed and a cutting mechanism made in the form of a fixed circular knife with through holes and a movable knife made in the form of a rotating disk with end knives [1].

A disadvantage of the known device is its complexity, due to the configuration of the bent profile and the presence of different mechanisms for bending and cutting.

The closest in technical essence and the achieved result is a cutting device, adopted as a prototype [2]. The cutting device comprises a cradle holder, feed rollers, a guide device with a fixed knife fixed on it and a fixed knife mating with them, mounted cantilever on a rotating disk and having a cutting edge parallel to the axis of rotation of the disk, perpendicular to the axis of the wire and offset upward from it.

The disadvantage of the prototype is that as a result of cutting the wire, billets of a cylindrical shape are obtained, which, when used as reinforcing elements, are not sufficiently anchored in the concrete body.

The objective of the invention is to simplify the device for producing a workpiece with anchor ends to improve the adhesion of the reinforcing element with concrete.

The technical result is achieved in that in a device for cutting wire into workpieces, including a bay holder, a wire feed mechanism in the form of two rolls, one of which is driven, a fixed knife with a wire guide, interacting with at least one movable knife, cantilever mounted on a rotating disk, the axis of rotation of which is perpendicular to the axis of the wire, and the drive, according to the invention, the movable knife is made in the form of a cylinder and a sleeve surrounding it, radially mounted on the disk, and t the thickness of the sleeve is 1.0-1.5 of the thickness of the wire, and the end of the cylinder protrudes relative to the end of the sleeve by an amount equal to 1.0-1.5 of the thickness of the wire, the fixed knife is made with a through cylindrical hole, and the axis of rotation of the disk is located at the lower position of the wall of this hole .

Figure 1 shows a device for cutting wire into workpieces, a General view; figure 2 is a section aa in figure 1; figure 3 is a section bB in figure 1; figure 4 - arrangement of knives during the formation of the anchor at one end of the workpiece; figure 5 is the same, with the formation of the anchor at the other end of the workpiece; figure 6 is the same when cutting the workpiece.

A device for cutting wire into workpieces includes a bay holder 1, a wire feeder in the form of a clamping 2 and a drive 3 rolls, a fixed knife 4 with a through cylindrical hole 5. The fixed knife 4 interacts with a movable knife made in the form of a cylinder 6 and its sleeve 7, disk 8 radially mounted on the console, which is kinematically connected to an electric motor with one of the feed rolls (not shown conventionally in the drawing). The axis of rotation of the disk 8 is perpendicular to the axis of the wire 9 and is located at the lower position of the wall of the hole 5 in the fixed knife 4. The fixed knife 4 is mounted on the support 10, and the movable knife on the disk 8 using bolts 11, 12. The number of movable knives installed depends on the required dimensions blanks.

The device operates as follows. The wire 9 from the bay holder 1 enters the feed mechanism, in which, using the pressure 2 and drive 3 rolls, it follows into the cylindrical hole 5 of the fixed knife 4. At the exit from the hole 5, the wire 9 is bent by the end part of the cylinder 6 (Fig. 4), since the latter moves tangentially with respect to the bent end of the wire. Further, as the wire advances and along the rotation of the disk 8, the sleeve 7, having reached the wire, bends it, since there is a gap between the end of the fixed knife 4 and the end of the sleeve 7, corresponding to the protruding part of the cylinder 6 (Fig. 5). Then the lower edge of the cylinder 6 produces a wire cut (Fig.6). The result is a blank with bent ends. Next, the cutting cycle with simultaneous bending of the ends is repeated.

To obtain the same bends at the ends of the [-shaped workpiece, it is necessary that the thickness of the sleeve 7 is 1.0-1.5 of the thickness of the wire, and the part of the cylinder 6 protruding relative to the end of the sleeve 7 is 1.0-1.5 of the thickness of the wire. When the values of the mentioned values are less than the lower limit or greater than the upper limit, either cutting without bending the end occurs, or the geometric shape of the staple-shaped workpiece is violated.

An advantage of the invention is to simplify the device by combining bending and cutting mechanisms.

Sources of information

1. Auth. Certificate No. 400400, B 21 F 11/00, B 21 F 1/00.

2. Auth. certificate No. 314584, B 21 F 11/00, B 23 D 25/06 (prototype).

Claims (1)

A device for cutting wire into workpieces, including a bay holder, a wire feed mechanism in the form of two rolls, one of which is driven, a fixed knife with a guide for the wire, interacting with at least one movable knife, cantilever mounted on a rotating disk, the axis of rotation of which is perpendicular the axis of the wire, and the drive, characterized in that the movable knife is made in the form of a cylinder and a sleeve covering it, radially mounted on the disk, and the thickness of the sleeve is 1.0-1.5 of the thickness of the wire are oloki, and the end face of the cylinder protrudes with respect to the end face of the sleeve by an amount equal to 1.0-1.5 of the thickness of the wire, the fixed knife is made with a through cylindrical hole, and the axis of rotation of the disk is located at the level of the lower location of the wall of this hole.

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