RU2392203C1 - Method of rolled stock pile binding with wire - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: method involves wire feed, clamping of wire head end, wire winding around the pile at high tension, wire cutting and knot binding. End of one wire is wound around another wire, with both wire ends further wound against each other.

EFFECT: improved quality of rolled stock package due to a faster knot.

3 dwg

Description

The invention relates to the field of metallurgical production, namely to strapping packages of rolled round, rectangular, hexagonal cross-sections, as well as pipes and wire bundles.

A known method of strapping wire riots, consisting in the fact that the wire is fed by rollers, is circled around the section of the riot, the front end of the wire is clamped, the section of the riot is tightly covered by wire by reversing the feed rollers, the ends are cut and twisted into a knot (see author's certificate No. 168612 Cl. 81a, 13 IPC B65B, 1965).

However, with this method of twisting the wire, the node is powered by sealing the turns of wire in the riot, and when this method is used to bundle the rolled packets, the node can break. In addition, the strength of such a unit is much lower than the strength of the wire circled around the package, so that in order to not untwist the unit, when creating a given tension in the bypass wire, it is necessary to use a wire of a larger diameter, which leads to overuse of metal.

The closest prototype to the proposed method is a method of strapping wire rental packages, in which the wire is fed by rollers, the front end of the wire is clamped, the clamped end of the wire is circled around the packet, it is brought under the packet, the wire is circled around the packet with high tension, the second end of the wire is brought to the packet , twist the wire into a knot, while the second end of the wire is cut off. The knot is twisted without loss of wire tension. The knot is formed in the zone between the bundled bag and the spindle of the knitting head, while the ends of the wire do not experience tensile forces and breaks in the knot when twisting (see ed. Certificate No. 311515, IPC B65B 13 / 18-13 / 34, 1971 .).

However, with this method of strapping the packages with wire, the strength of the assembly is significantly lower than the strength of the wire circled around the package. Tests of knots on a tensile testing machine showed that the knot strength is ~ 31% of the strength of the wires in the strapping (see “Investigation of a laboratory sample of a knitting machine and putting it into commercial operation at the A.K. Serov plant”, report HP-3725, VNIIMETMASH, work manager A.S. Burov, M., 1974).

The technical result of the proposed method for tying rolled wire packages with wire is to improve the quality of rolled packaging by obtaining a more durable unit.

The technical result is achieved by the fact that the end of one wire is twisted around the other wire, after which the ends of the wires are twisted relative to each other.

The proposed method of bundling rental packages is depicted in graphic materials, where

- figure 1 schematically shows the initial phase of the spin node;

- figure 2 shows the position of the node when the packet is covered with wire;

- figure 3 shows the finally twisted node.

The proposed method of tying rolled wire packages is as follows. The wire is fed around the packet 1, the front end 2 of the wire is twisted around the wire 3. Clamp the front end 2 of the wire, reverse the wire, as a result of which the packet 1 is tightly wrapped around the wire 1. Cut the end 3 of the wire, after which the ends 2 and 3 are twisted relative to each other.

The essence of the method of tying rolled wire packages consists in the formation of a double node, which is much stronger than the above.

As an example of the use of the method of tying rolled wire packages with wire, we can consider strapping of long products, which are tied into bundles at the request of the consumer.

For example, a bag with a length of 12 m, a diameter of 600 mm, and a weight of up to 10 tons is tied with a wire with a diameter of 6-6.5 mm in 5-6 places evenly along the length of the package. In this case, the rods in the bundle must be firmly tied in the transverse direction every 2-3 m of length or, at the request of the consumer, after 1-1.5 m.

The material of the strapping wire is carbon steel with a tensile strength of up to 50 kg / mm ² .

Thus, the implementation of the proposed method of tying the rolled wire packages by wire, which consists in the fact that the end of one wire is twisted around the other wire, after which the ends of the wires are twisted relative to each other, which improves the strength of the node, and therefore, the reliability of linking packages.

Thus, the effect of applying the method of strapping the rolled wire packages with wire is achieved by creating a node that is equally strong when stretched with a wire circled around the package. This will lead to a decrease in the number of bindings on the bag or to a reduction in the diameter of the strapping wire, and, consequently, to a reduction in the metal of the wire.

Claims (1)

A method of tying rolled wire packages with wire, including feeding wire, clamping the front end of the wire, tracing the wire around the bag with high tension, cutting and twisting the unit, characterized in that the end of one wire is twisted around another wire, after which the ends of the wires are twisted relative to each other.

Images