JP2002292422A - Wire drawing die holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire drawing die holder capable of sufficiently feeding a wire drawing lubrication oil to a die, sufficiently making the cooling of the die, and surely making the lubrication by preventing the clogging of working chips between a wire material and the die. SOLUTION: In a collar with a construction wherein the die and a collar are mounted in order in the box body-shaped die holder body, and tightened to be fixed by a cap screw from the backside, a groove is formed so as to be tilted toward a wire threading part from the outer periphery face to receive a wire drawing lubrication oil to feed the lubrication oil to the die through the tilted groove, so that the cooling, cleaning and lubrication of the die can be sufficiently carried out. The lubrication oil to be fed to the die is made to be discharged outside through the collar and the wire threading part of the cap screw.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of wire drawing machines, and more particularly to a die holder for a wire drawing machine.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional wire drawing die holder, in which a die 2, a collar 10 and a guide die 11 are loaded into a housing-like die holder body 1, and a holding screw is provided. 4 was fixed by tightening.

[0003] A wire rod 9 to be drawn is processed for drawing by passing the die 2 through a set screw 4, a guide die 11, and a collar 10 having a hole larger than the diameter of the wire.

As shown in FIG. 4, the collar 10 has a band-like (annular) groove formed on the outer periphery, and a hole 21 extending from the bottom of the groove to the center line portion 20 is formed radially. I have. This is a die holder body 1 as shown in FIG.
By supplying the wire drawing lubricating oil supplied from the supply pipe 7 in the die holder main body 1 to the band-shaped groove of the collar 10, the supplied lubricating oil flows into the hole 21 and is supplied into the collar 10, The die 2 is used for lubrication (and cooling and washing) during wire drawing. The lubricating oil 8 supplied and supplied for lubrication is discharged from the return pipe 6 in the die holder body as indicated by reference numeral 8 ', temporarily stored in the lubricating oil receiving tray 5, and is appropriately discharged from the return pipe 6' and processed. You.

[0005]

According to the prior art described above; according to the wire drawing die holder shown in FIGS. 3 and 4, the following points to be improved are found. (1) When the supply amount of the wire drawing lubricating oil 8 is increased, the wire rod 9 and the guide die 11 to be drawn are drawn.
Lubricating oil blows out from the gap and pollutes the surroundings. (2) If the supply amount of the wire drawing lubricating oil 8 is reduced in order to solve the above-described problem, lubrication, cooling, and cleaning of the die 2 cannot be performed sufficiently. (3) Supply of wire drawing lubricating oil 8 to collar 10: Looking at the flow, the lubricating oil 8 only stays in the collar 10, and it cannot be said that the lubricating oil is sufficiently supplied to the die 2. In this case, clogging of the processing powder between the wire and the die during wire drawing was likely to occur. This also affects the appearance of the wire 9 and lowers the product value.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object the object of the present invention is to sufficiently supply wire drawing lubricating oil to the dies, sufficiently cool the dies, An object of the present invention is to provide a wire drawing die holder capable of preventing clogging of processing powder between a die and a die and reliably performing lubrication.

[0007]

Means provided by the present invention: A wire drawing die holder has a structure in which a die and a collar are sequentially loaded into a housing-shaped die holder body, and are tightened and fixed from the rear with a holding screw. In the collar, a groove is formed that is inclined from the outer peripheral surface receiving the supply of the drawing wire lubricating oil toward the outgoing line portion, and the lubricating oil is supplied to the die through the inclined groove. Cooling,
The cleaning and lubrication can be performed sufficiently.

The lubricating oil supplied to the die is discharged to the outside through the collar and the threaded portion of the set screw.

[0009]

FIG. 1 and FIG. 2 simply show an embodiment of a wire drawing die holder according to the present invention.
Note that the same reference numerals as those in FIGS. 3 and 4 are used for the portions common to the wire drawing die holders in FIGS.
See also the above description of

As shown in the drawing, the wire drawing die holder of this embodiment is one in which a die 1 and a collar 3 according to the present invention are loaded into a housing-shaped die holder body 1 and a holding screw 4 is screwed in and fixed. Therefore, the conventional guide die is omitted.

As shown in FIG. 2, the collar 3 extends from the position where the wire drawing lubricating oil is supplied (the outer peripheral surface at the center position) to the wire portion 20 on the outgoing line side (die side). An inclined groove 21 is formed, and the inclined groove 21 is formed radially (four places) in the circumferential direction.

Accordingly, when the lubricating oil 8 supplied from the supply pipe 7 in the die holder 1 flows into the die holder 1, it flows along the inclined groove 21 of the collar 3, and the center of the die 2, that is, the machining. It is positively supplied to the hole portion, cools the die 2, flows out the processing powder (copper powder) accompanying the wire drawing, and reliably performs lubrication between the wire 9 and the die 2. Thus, the cooling of the dies,
The lubricating oil used for lubrication and cleaning is discharged to the outside as shown by reference numeral 8 ′ through the communication part 20 of the collar and the communication part of the holding screw 4, temporarily stored in the oil receiving tray 5, and appropriately returned to the return pipe 6 ′ Is discharged and returned to the supply tank.

As described above, according to the wire drawing die holder of this embodiment, the die can be sufficiently cooled, lubricated, and washed, so that the appearance of the wire used for wire drawing can be improved. Further, as described above, the guide die can be omitted, which can contribute to simplification of the structure.

[0014]

As described above, according to the present invention, the lubricating oil for wire drawing is sufficiently supplied to the dies, the dies are sufficiently cooled, and the processing powder between the wire and the dies is prevented from being clogged. Problem of providing a wire drawing die holder capable of reliably performing lubrication by means of the above; the effect can be said to be great because the object can be achieved and the appearance of the wire can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a wire drawing die holder according to the present invention.

FIG. 2 shows a collar of an extension die holder in FIG. 1, (A) is a left side view, and (B) is a front view.

FIG. 3 is an explanatory view showing an example of a conventional wire drawing die holder.

4 shows a collar of the wire drawing die holder in FIG. 3, (a) is a left side view, and (b) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dice holder main body 2 Dice 3 Collar 4 Holding screw 5 Lubricating oil receiving tray 6 Return piping 7 Supply piping 8 Wire drawing lubricating oil 9 Wire rod 20 Passing part 21 Inclined groove

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Katsumi Nakano Nishi 4-10-1, Kawajiri-cho, Hitachi City, Ibaraki Prefecture F-term in the Toyoura Plant of Hitachi Cable, Ltd. (reference) 4E096 FA12 JA13

Claims (2)

[Claims] 1. A die having a structure in which a die and a collar are sequentially loaded into a housing-shaped die holder body, and are fixed by tightening with a holding screw from a rear portion. A groove inclined toward the side wire portion, and lubricating oil supplied to the die through the inclined groove. 2. The lubricating oil supplied to the die is discharged to the outside via a wire of the collar and the set screw.
The wire drawing die holder according to claim 1.