JPS58205613A - Water cooling box in wire rod rolling equipment - Google Patents

Abstract

PURPOSE:To reduce equipment cost and shorten time required for changing nozzles remarkably by providing in a box a joining part of a main water supply pipe and a manifold to which several nozzles are attached. CONSTITUTION:To change nozzles in the water cooling box, the cover 6 of a box 14 is opened, a wedge 8 is removed from a positioning pin 7, and a hanger 3 is lifted. Then, a manifold 1, a liner 5, a packing 9, a spring 10 and a retainer ring 11 are taken out in a body. At this time, the cover 6 is opened to upper right by a hinge 6a. A manifold for different diameter wire rod of the same type provided beforehand is brought in and installed in the box 14. At this time, the liner 5 goes down along the slanted face 4a of a positioning block 4, so the installation of manifold can be performed easily to the specified position. Next, a wedge 8 is driven into the pin 7 to complete changing work. Then, cooling water is sent to a supply pipe 15 and supplied to nozzles 2. At the same time the water is sent into a water pressure chamber 11a in the ring 11 through a water channel 13, and the packing 12 is pressed together with the spring 10 to prevent leakage of water.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water-cooled box in a wire rod rolling facility. When manufacturing wire rods with different diameters using the same equipment,
It is necessary to replace the diameter of the cooling water jet nozzle provided inside the casing of the water-cooled box with one that corresponds to the wire diameter.

The present invention aims to reduce equipment costs and significantly shorten the nozzle replacement time to 5 units by providing a joint between the main water supply pipe and the manifold with the nozzle assembled inside the box. .

As a method of replacing the conventional cooling water jet nozzle, see Figure 1~
The method shown in FIG. 2 is used. In other words, prepare a device with a nozzle pre-assembled in it, and replace the device and the nozzle together, or replace each header with a nozzle installed.
I had to replace them one by one.

The former is attached and detached at parts a, b, and C in Figure 1. For part a, the wedge d was removed, and for the bSC part, it was done by attaching and detaching the pipe joint of the water supply pipe, but depending on the wire diameter, In addition to the nozzle, a spare case was also required, resulting in high costs.

A large space was required to store the boxes of father and child.

In the latter case, a header f with a large number of nozzles e assembled is one
Since it is necessary to replace each piece one by one, there is a drawback that the downtime of the equipment becomes longer.

The rolled wire rod is sent in the direction of arrow W, passes through a plurality of nozzles 2 lined up, and is sent to subsequent equipment.

On the other hand, the cooling water passes through the manifold 1 from the water supply pipe 15 and is jetted out from the header 16 toward the wire, thereby cooling the running wire.

6 to 4 show a water-cooled box according to the present invention. Particularly, referring to FIG. 4, the right half is a cross-sectional view of A in FIG. 6, and the left half is a cross-sectional view of B in FIG. In the A section view of the right half,
The box 14 has a lid 6 on its top that can be opened and closed with a hinge 6a. Reference numeral 4 denotes a positioning block, which has an inclined surface 4a on its upper surface, by which the liner 5 is guided when descending into the box 14. 7 is a positioning pin attached to the manifold 1 via a bracket, and a wedge 8 is attached to the upper part.
can be inserted and removed.

Next, referring to the left half B sectional view, reference numeral 3 denotes a hanging hand having a hooking hole, which is fixed to the manifold 1. The hanger 3 has a bracket (3a) on the upper side, and can be fixed to the box 14 with a positioning pin 7 and a wedge 8.

The lower end of the hanger 3 is fixed to a member 3b fixed to the manifold 1 and the water supply pipe 15. Reference numeral 11 denotes a retainer ring, which forms a water pressure chamber 11a sealed by gaskets 9 and 12. A spring 10 applies a downward pressing force to the retainer ring 11. Reference numeral 13 denotes a water passage bored in the water supply pipe 15, which connects the water supply pipe 15 to the water pressure chamber 1.
I have sent 11 messages.

Nozzle replacement C in the water-cooled box of the present invention is carried out as follows. First, let go of the lid 6 of the box 14, remove the wedge 8 from the positioning pin 7, and lift the hanging arm 3 with a crane or the like, and the manifold 1, liner 5, packing 9, spring 10. It is taken out in one piece. At this time, the lid 6 of the box 14 is opened to the upper right by the hinge.

A pre-prepared manifold for different diameter wires of the same type is brought in and installed in the box 14, but at this time, as shown by the two-dot chain line in FIG. Since it descends into the box 14 along 4a, it can be easily installed in a predetermined position.

Of course, instead of the positioning block 4, only the positioning pin 7 having a conical tip may be used. Once the nozzle has been lowered, the wedge 8 is driven into the positioning pin 7 again to complete the nozzle replacement work.

After replacing the nozzle, transfer the cooling water to the cooling water supply pipe 1.
5, the cooling water is supplied from the water supply pipe 15 to the nozzle 2 and at the same time passes through the water passage 13 to the retainer ring 11.
The retainer ring 11 is pushed downward by water pressure, and the gasket 12 is pressurized. On the other hand, a force pushing the retainer ring 11 upward is generated by the water supply pressure, but the pressure receiving area surrounded by the seal 12 is larger than the pressure receiving area of the retainer ring 11.
Water leakage can be prevented by increasing the pressure receiving area in step 1. Additionally, a spring 1D is provided as an auxiliary means to pressurize the gasket 12, thereby preventing water leakage from the start of water supply until the gasket 12 is applied with water pressure.

Note that as a means for pressurizing the seal 12, it is also possible to obtain a sealing effect by pressurizing the seal 12 only by the spring 10, without depending on the water supply pressure. Note that a gasket 9 is attached to prevent water from leaking upward from the retainer ring 11.

As explained above, the present invention includes a nozzle according to the wire diameter,
It has a manifold that incorporates several headers into one, and the manifold and the water supply pipe can be connected inside the box, which reduces equipment costs compared to conventional methods. It has become possible to significantly shorten the time required to replace nozzles.

[Brief explanation of the drawing]

Figure 1 shows a conventional nozzle water cooling box. FIG. 2 is a detailed view of the section viewed from the ■ arrow in FIG. FIG. 3 shows a water-cooled box according to the present invention. The right half of Fig. 4 is a cross-sectional view taken along arrow A in Fig. 3, and the left half is a cross-sectional view taken along arrow B; Block 4a
Inclined surface 5 Liner 6 Lid 6a Hinge 7
Positioning pin 8 Wedge 9 Packing 1o Spring 11 Retainer ring 11a Water pressure chamber 12
Packing 13 Waterway 14 Box
15 Water supply pipe 16 Header
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Claims (1)

[Claims] A water-cooled box for wire rod rolling equipment, characterized in that it has a manifold that integrates several nozzles according to the diameter of the wire rod and several headers into which the nozzles are assembled, and a joint between the manifold and a water supply pipe is provided inside the box.