JPH0144164Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a die box for dry drawing of metal wire.

When drawing metal wire, the quality of die cooling depends on
It is well known that this has a large effect on the physical properties of the metal wire after wire drawing, and for this reason various ideas have been devised regarding the method of cooling the die.

Conventionally, as shown in FIG.
consists of a lubricant box 2 and a die water cooling tank 3. A die presser 5 for holding and fixing the dice 4 is screwed onto the die water cooling tank 3, and a water supply pipe 6 and a drain pipe 7 are arranged at the bottom and the top, respectively. Further, the upper part of the dice water cooling tank 3 is sealed with a lid 8. In addition, numeral 9 in the figure is a tightening handle for fixing the lid 7 to the die water cooling tank 3.

In the die box described above, since the upper part of the water cooling tank 3 is hermetically fixed with a lid 8, it is necessary to remove the lid 8 when replacing the dice 4, which has the drawback of very poor workability.

In addition, there is often a lack of cooling water due to forgetting to supply cooling water at startup or clogging of the water supply pipe 6, which results in quality problems such as wire surface roughness and reduced toughness due to insufficient die cooling capacity. There was a drawback.

In order to detect these, countermeasures have been taken, such as installing instruments such as a flow meter in the water supply pipe 6 and a thermometer in the water cooling tank 3, or alarm circuits, but this increases equipment costs, increases the time required to check the instruments, etc. Not only does it cause harmful effects. All of the quality problems mentioned above have not yet been resolved.

The present invention has been made to eliminate these drawbacks.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

A dry wire drawing die box 1 consisting of a lubricant box 2 and a die water-cooling tank 3 has a larger bottom area than the die water-cooling tank 3, with a part of the bottom open to the die water-cooling tank 3; A saucer 11 having a drain port 10 on the bottom is placed in a die water cooling tank 3.
Place it at the top of the . At the top of the saucer 11,
A lid 13, which is swingably attached to one end on the side of the dice water cooling tank 3 and can be opened and closed, is attached so as to cover at least the upper part of the dice water cooling tank 3.
The lid 13 may be placed so as to cover the dice water cooling tank 3 and open above the drain port 10 so as to cover a part of the saucer 11, or the lid 13 may be a transparent plate and the upper part of the saucer 11 may be placed It may be configured to cover the entire area. Furthermore, it is also possible to make one side wall surface of the receiving tray 11 lower than the other three wall surfaces to form a weir 12 for overflow. In addition,
It is assumed that this weir 12 is not provided on the lubricant box 2.

Next, when drawing the metal wire 14 using the die box 1 for dry wire drawing of the present invention, the lid 1
Open 3 and place the wired die 4 on the die holder 5.
After tightening and fixing, the lid 13 is closed, and water is supplied from the water supply pipe 6 connected to the die water cooling tank 3 to draw the die 4 while cooling it. The cooling water is drained from the drain pipe 7 via the drain port 10. Note that the amount of water supplied is adjusted as appropriate while monitoring the amount of water flowing out from the drain port 10.

As mentioned above, the dice box of the present invention has a lid 13.
Since the cover 13 can be opened and closed freely, it is extremely easy to open and close the lid 13, and it is not only possible to visually check and adjust the flow rate of die cooling water without the need for instruments such as a flow meter or thermometer. The temperature of the cooling water inside and the temperature of the die can also be easily measured. In addition, by providing the drain port 10 at the bottom of the saucer 11 placed at the top of the die box 1, the dice remain in the cooling water at all times, preventing insufficient cooling of the dice. This eliminates pipe clogging. Moreover, since the lid 13 can be easily opened and closed, the time required for exchanging dice can be significantly shortened.

Furthermore, by providing the lid 13 on the upper part of the die water cooling tank 3 or by forming it from a transparent plate, even if a problem such as a clogging of the cooling water pipe occurs, it can be discovered at an early stage.

Furthermore, if the weir 12 is provided, even if the amount of water supply temporarily becomes excessive during startup, water supply adjustment, etc., water will flow out from the weir 12 and water will flow into the lubricant box 2. to alter the quality of the dry lubricant 15,
It will not deteriorate.

In this way, the dry wire drawing die box of the present invention has a simple structure and is easy to handle, so there is no need to install various instruments and alarms, and the die replacement time is greatly shortened. . Also,
This has many excellent practical effects, such as eliminating deterioration in quality due to insufficient cooling capacity of the dice.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional die box.
FIG. 2 is a perspective view of a dry wire drawing die box showing an embodiment of the present invention. 1...Dice box, 2...Lubricant box, 3...Dice water cooling tank, 4...Dice, 5...
Dice holder, 6... Water supply pipe, 7... Drain pipe, 8, 13... Lid, 10... Drain port, 11...
saucer, 12...weir.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a die box 1 for dry wire drawing consisting of a lubricant box 2 and a die water cooling tank 3, a part of the bottom surface is located above the die water cooling tank 3 and A lid is provided with a saucer 11 which is open at the bottom and has a drain port 10 on the other bottom surface, and one end of the tray 11 on the side of the die water cooling tank 3 is swingably attached to the upper part of the saucer 11 so that the lid can be opened and closed. 13 arranged so as to cover at least the upper part of the die water cooling tank 3. (2) Dry wire drawing according to claim 1, wherein the lid 13 is arranged to cover a part of the tray 11 so as to cover the die water cooling tank 3 and open the drain port 10. Dice box for. (3) The die box for dry wire drawing according to claim 1, wherein the lid 13 is a transparent plate and is arranged so as to cover the entire upper part of the tray 11.