JPS6023041Y2 - Wire guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire rod guiding device in a wire rod rolling facility, and more particularly, to a wire rod guiding device in a cooling zone of a wire rod rolling facility.

Generally, during wire rolling, the wire rod that has been rolled to the product size is cooled down to the coiling temperature in water cooling equipment placed between the final rolling mill and the winder. In order to avoid cooling, the water-cooling-recuperation action is repeated to cool down to the above-mentioned winding temperature.

Conventionally, the wire guide device in the recuperation zone that performs this heat recuperation is accomplished by installing a plurality of cast iron or cast steel guide troughs having grooves with a U-shaped cross section in a row. The induction trough is heated by the heat retained by the wire passing through it at high speed, which not only causes significant wear on the induction trough, but also indirectly affects the support frame that supports it due to the heating of the induction trough. This deforms the frame and induces deformation of the guide trough, which increases the running resistance of the wire and causes misrolls, which reduces the productivity of the rolling equipment.

In addition, in this type of wire rod guiding device, the wire rod to be rolled moves in the guide trough, causing loose sills and misrolls, so the product diameter of the wire rod is adjusted to ensure smooth running. It is necessary to group the guide trough into appropriate ranges and change the dimensions of the guide trough, in other words, the groove dimensions of the guide trough, according to each group, but the single weight of the guide trough is considerable, and Because many rows of troughs are installed, it takes a long time to replace and adjust them, which not only hinders the productivity of the equipment, but also reduces operating costs because it is necessary to store a large number of expensive induction troughs. There are disadvantages such as increasing the price.

The present invention was devised in view of the above-mentioned points, and its purpose is to prevent deformation of the wire due to thermal effects; 1. It is an object of the present invention to provide a wire rod guiding device that can reduce the occurrence of misrolls and can be adapted to the product dimensions of the wire rod very easily. is characterized by a guide trough that has a groove with a U-shaped cross section that guides the wire, and a lid that can be opened and closed at the top to close the opening of the groove, and a It consists of a guide pipe that is detachably attached to the guide pipe, and a support frame that has a cooling water flow passage formed inside the guide pipe on which the guide trough is placed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The wire guide device according to the present invention will be explained in detail below based on the illustrated embodiments.

Reference numeral 1 denotes a wire guide device according to this invention, in which a support frame 3 is placed on a pillar 2 erected on a foundation via a support 4, and an appropriate fixing means, in the case shown in the figure, a support frame 3 is mounted.
The mounting seat 3' and the support 2 are fixed together by a bolt 5 which is inserted through a through hole provided in the support 2.

This support frame 3 is manufactured using, for example, an H-shaped steel 6, and is made into a casing by welding plate members 7 to both sides and ends thereof, and is formed on both sides at one end of the web portion 6' of the H-shaped steel 6. A cooling water circulation passage 8 is formed by drilling an opening that communicates the passage, and a cooling water supply pipe 9 is attached to one side of the circulation passage 8, and a cooling water drainage pipe 10 is attached to the other side of the circulation passage 8. is connected by a joint to a cooling water pipe arranged on the support column 2, and the drain pipe 10 is fitted into an upper wrapper portion of a drainage channel 11 arranged on the support column.

The guiding trough 13 is mounted on the support frame 3 constructed in this manner via the washer 12 by means of fixing means similar to those described above.

The guide trough 13 has a groove 14 with a U-shaped cross section, as shown in detail in FIG. This lid body 16 is fixed by a locking pin 17 attached to the side surface of the guide trough 13.

A guide pipe 18 is removably inserted into the concave groove 14 of the guide trough 13 and is fixed by the lid 16. Also, this guide pipe is made of heat-resistant material because a high-temperature wire runs therein. Made of stainless steel for wear resistance.

In the wire guide device according to the present invention having the above configuration, the opening cross section of the concave groove 14, which serves as the travel path of the guide trough 13, is adjusted prior to rolling.

That is, it is determined whether or not to fit the guide pipe 18 into the groove 14 according to the dimensions (diameter) of the wire rod to be rolled.
For example, when rolling a small diameter wire rod, the guide pipe 1
In addition, when rolling a large-diameter wire rod, by removing the guide pipe 18, the opening cross-sectional area of the groove 14 in the running path can be adjusted to the optimum opening cross-sectional area according to the wire size. The running condition within the guide trough 13 can be made smooth without causing phenomena such as bending of the wire.

On the other hand, cooling water is supplied through the cooling water supply pipe 9 into the support frame 3 that supports the guide trough 13, thereby cooling the support frame 3.

The support frame 3 is an induction trough 1 heated by rolling.
Although the guide trough 13 is indirectly heated by the cooling water, the guide trough 13 can be accurately supported without causing distortion by being effectively cooled by the cooling water.

Note that the guide pipe 18 is removably attached to the groove having a U-shaped cross section in the guide trough 13.
Since the single weight of the guide trough 13 is considerable and heavy, it takes a long time to replace and adjust the guide trough 13 because it is used in a large number of rows, and the guide trough 13 has to be replaced frequently depending on the diameter of the wire rod to be rolled. By being difficult.

As is clear from the above, the wire rod guiding device according to the present invention prevents deformation of the support frame due to the thermal influence of the rolled wire rod, reduces the occurrence of misrolls, and improves the running path of the wire rod in the guide trough. By attaching and detaching the guide pipe, it is possible to adjust the conditions in a short time to the optimum conditions that match the wire diameter, reducing equipment downtime, and by holding the guide pipe according to the wire diameter. It is possible to reduce the number of expensive guide troughs, which has great effects such as lowering manufacturing costs.

[Brief explanation of the drawing]

, FIG. 1 is a schematic front view of the wire guide device according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged sectional view taken along the line ■-■ in FIG. 1, and FIG. 4 is a guide trough. FIG. In the figure, 2 is a column, 3 is a support frame, 9 is a cooling water supply pipe, 10 is a cooling water drain pipe, 13 is a guide trough,
14 is a groove, 16 is a lid, and 18 is a guide pipe.

Claims (1)

[Scope of utility model registration request] A guide trough having a groove with a U-shaped cross section for guiding the wire, and a cover on the top that can be opened and closed to close the opening of the groove, and a guide trough that can be detached from the groove of the guide trough. A wire guide device characterized by comprising a guide pipe attached to a guide trough, and a support frame having a cooling water flow path inside which a guide trough is placed.