JPH043683Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a wire drawing machine that draws metal wires such as iron wire, stainless steel wire, and steel wire, and is designed to prevent lubricating powder from flowing into the die case attachment part when replacing dies. First, the present invention relates to an improvement of a dry die box that allows die exchange to be performed quickly and easily.

[Prior Art] As shown in FIG. 7, a conventional die box includes a die case 3 in which a die 2 is fixed inside a box body 1, and a die case 3 in which a die 2 is fixed.
The inside is filled with lubricating powder 4 and is configured to be supplied to the die 2.

[Problem that the invention attempts to solve]

However, in the above configuration, in order to replace the die 2, the die case 3 must be taken out from the box body 1, and when the die case 3 is taken out, the lubricating powder 4 flows into the die. When attaching the die case 3 to the box body 1 after replacement, the lubricating powder 4 that has flowed in must be removed from the die case attachment section.

For this reason, the task of replacing the die 2 becomes complicated, and if the die case 3 is forcibly attached without completely removing the lubricating powder 4, the core of the die 2 may not come out and the die 2 may become misaligned.
There is a problem in that it causes a defective angle and deteriorates the quality of the metal wire 5.

[Means for solving problems]

The present invention has been made to eliminate the above problems.

In a die box having a die case mounting part and a lubricating powder supply part, the die box is partitioned into the die case mounting part and the lubricating powder supply part by arranging a partition wall provided with a lubricating powder inflow hole in the die box, and further A holding plate having an inflow hole is disposed in the partition wall, and a shielding plate having a lubricating powder inflow hole is rotatably arranged between the partition wall and the holding plate. A die case with dies attached thereto is mounted on the die case mounting section, and a lubricating powder is filled in the lubricating powder supply section to form a dry die box.

In addition, in the above structure, a slit is provided in the partition wall and the holding plate from the upper part to the inflow hole, and a part of the shielding plate is provided with an opening communicating with the inflow hole at a position closest to the inflow hole and the outer periphery. This makes it easier to introduce the metal wire during the work in progress.

[Effect]

In the above dry die box, when drawing a metal wire, the inflow hole of the shielding plate is aligned with the inflow hole of the partition wall and the holding plate, so that the metal wire is inserted through it and the lubricating powder is guided to the die, and when the die is replaced, the inflow hole of the shielding plate is made to coincide with the inflow hole of the partition wall and the holding plate. By rotating the plate, the inflow hole in the partition wall and the inflow hole in the shielding plate are made to be in a mismatched state, so that the inflow hole in the partition wall is closed, so that lubricating powder does not flow into the die case mounting part even if the die case is removed. .

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

[Example 1] As shown in FIGS. 1, 2, and 3, 6 is a die case mounting section 7 and a lubricating powder supply section 8.
The die case mounting section 7 and the lubricating powder supply section 8 are separated by a partition wall 9. A lubricating powder inflow hole 10 is provided in the lower part of the partition wall 9, and the metal wire 5 passes approximately through the center of this inflow hole 10.

Further, a substantially circular recess 20 having a notch 22 at the upper part is formed on the wall surface of the partition wall 9 on the side of the die case mounting part 7, and a presser foot is provided with a lubricating powder inflow hole 21 at the bottom of the recess 20. A plate 16 is arranged.

Further, between the partition wall 9 and the holding plate 16 and within the recess 20 of the holding plate 16, a disk-shaped shielding plate 12 having a lubricating powder inflow hole 13 is rotatably supported around a rotating shaft 14. ing.

When the inflow hole 13 provided in the shielding plate 12 rotates and comes to a predetermined position, the inflow hole 13 is connected to the inflow holes 10 and 21 provided in the partition wall 9 and the holding plate 16.
is configured to match.

Next, details of the partition wall 9, shielding plate 12, and presser plate 16 will be explained based on FIG. 2.

As shown in FIG. 2A, the partition wall 9 has a rotating shaft hole 19 approximately in the center, and has a lubricating powder inlet hole 10 adjacent to the rotating shaft hole 19.

As shown in FIG. 2B, the shielding plate 12 is formed into a disk shape, has a rotating shaft 14 approximately in the center thereof, and has a lubricating powder inflow hole 13 adjacent to the rotating shaft 14.

As shown in FIG. 2C, the holding plate 16 has a circular recess 20 in which the shielding plate 12 is disposed, and a notch 22 is provided above the recess 20 so that a part of the shielding plate 12 protrudes. is provided. Further, a rotating shaft hole 19 is formed approximately at the center of the bottom of the recess 20, and a lubricating powder inlet hole 21 is provided adjacent to the rotating shaft hole 19.

Note that the lubricant powder inflow holes 10, 13, 2
1 are provided at substantially the same position, and are arranged so as to match when in use.

In the figure, reference numeral 17 denotes a die case holding a die 18, which is arranged and fixed in the die case mounting section 7.

The handling of the dice box will be explained below.

When the die case 17 is not attached (for example, when the die 18 is replaced), the inflow hole 10 of the partition wall 9 and the inflow hole 13 of the shielding plate 12 are out of alignment as shown in FIG. The inflow hole 10 of the partition wall 9 is closed. Therefore, the lubricating powder 4 does not flow into the die case mounting portion 7 side.

When setting the die 18 in the die case 17 and attaching the die case 17 to the die box 6, first attach the die case 17 to the die box 6, and then move the shielding plate 12 in the direction shown in FIG. Rotate in direction B.

Then, the shielding plate 12 is further rotated in the direction of arrow B as shown in FIG.
The inflow hole 13 of the shielding plate 12 and the inflow hole 21 of the holding plate 16 are completely aligned. After that, the metal wire 5 passes through the lubricating powder supply section 8 and the inflow holes 10, 13,
21 and passed through the die 18.

At this time, since the die case 17 is attached to the die case attachment part 7, the inflow holes 10, 13,
The lubricating powder 4 flowing in from 21 flows only into the die 18 of the die case 17, and does not flow into other parts at all.

Moreover, when removing the die case 17, the lubricating powder 4 in the lubricating powder supply section 8 does not flow out into the die case mounting section 7 by performing the procedure in the reverse order.

[Example 2] As shown in FIGS. 4, 5, and 6, 6 is a die case mounting section 7 and a lubricating powder supply section 8.
The die case mounting section 7 and the lubricating powder supply section 8 are separated by a partition wall 9. A lubricating powder inflow hole 10 is provided in the lower part of the partition wall 9, and the metal wire 5 passes approximately through the center of this inflow hole 10.

Further, the inflow hole 10 is opened from the upper part of the partition wall 9 so that the slit 11 for inserting the metal wire 5 is located within the trajectory area of the inflow hole 13 of the shielding plate 12, which will be described later.
It is formed over.

Further, a substantially circular recess 20 having a notch 22 at the upper part is formed on the wall surface of the partition wall 9 on the side of the die case mounting section 7, and a lubricating powder inflow hole 21 is provided on the bottom surface of the recess 20. A holding plate 16 is provided with a slit 11 for inserting the wire 5 extending from the top to the inflow hole 21.

Between the partition wall 9 and the presser plate 16, a lubricant powder inflow hole 13 is provided in the recess 20 of the presser plate 16.
A disk-shaped shielding plate 12 is rotatably supported around a rotating shaft 14 .

The inflow hole 13 provided in the shielding plate 12 is configured to coincide with the inflow holes 10 and 21 provided in the partition wall 9 and the holding plate 16 when rotated to a predetermined position. Further, an opening 15 communicating with the inflow hole 13 is formed in a part of the shielding plate 12,
Slits 11 provided in the partition wall 9 and the holding plate 16
It is also used for inserting the metal wire 5.

Note that the opening 15 is preferably provided at a location where the distance between the outer periphery of the shielding plate 12 and the inflow hole 13 is the shortest.

Next, details of the partition wall 9, shielding plate 12, and presser plate 16 will be explained based on FIG. 5. As shown in FIG. 5A, the partition wall 9 has a rotation shaft hole 19 approximately in the center.
, and has a lubricating powder inlet hole 10 adjacent to the rotating shaft hole 19 . Further, a slit 11 having a width enough to insert the metal wire 5 is formed from the upper part to the inflow hole 10 so as not to pass through the rotation shaft hole 19.

As shown in FIG. 5B, the shielding plate 12 is formed into a disk shape, has a rotating shaft 14 approximately in the center thereof, and has a lubricating powder inflow hole 13 adjacent to the rotating shaft 14. Further, an opening 15 having a width into which the metal wire 5 can be inserted is formed between the outer periphery of the shielding plate 12 and the inflow hole 13.

As shown in FIG. is provided. Further, a rotating shaft hole 19 is formed approximately at the center of the bottom of the recess 20, and a lubricating powder inflow hole 21 is provided adjacent to the rotating shaft hole 19. In addition, a slit 11 having a width that allows insertion of the metal wire 5 is provided at a position substantially opposite to the slit 11 provided in the partition wall 9, and extends from the upper part of the notch 22 to the inlet hole 21 to form the rotation shaft hole 1.
9 so that it does not pass through.

Note that the lubricant powder inflow holes 10, 13, 2
1 are provided at substantially the same position, and are arranged so as to match when in use.

In the figure, reference numeral 17 denotes a die case holding a die 18, which is arranged and fixed in the die case mounting section 7.

The handling of the dice case will be explained below.

When the die case 17 is not attached (for example, when the die 18 is replaced), the inflow hole 10 of the partition wall 9 and the inflow hole 13 of the shielding plate 12 are out of alignment as shown in FIG. The inflow hole 10 of the partition wall 9 is closed. Therefore, the lubricating powder 4 does not flow into the die case mounting portion 7 side. Next, when the die 18 with the metal wire 5 passed through it is set in the die case 17 and the die case 17 is attached to the die case attachment part 7, the shielding plate 12 is moved in the direction of arrow B as shown in FIG. The opening 15 of the shielding plate 12 is aligned with the slit 11 provided in the partition wall 9 and the holding plate 16. As a result, the slit 11 and the inflow hole 13 of the shielding plate 12 are opened, and the metal wire 5 is introduced to the bottom of the inflow hole 13.

Furthermore, when the shielding plate 12 is rotated in the direction of arrow B, the slit 11 and each inflow hole 10, 13, and 21
is in a common open state as shown in FIG.
6 is introduced into the inlet hole 21 of No.6.

Then, when the shielding plate 12 is further rotated in the direction of arrow B and reaches the position shown in FIG.
The metal wire 5 is placed approximately at the center of the inlet holes 21 of the metal wires 6 and 6, so that the inflow holes 21 of the wires 6 are completely aligned with each other. At the same time, the die case 17 is attached to the die case mounting portion 7 as shown in FIG.
Because it is installed in the inflow holes 10, 13, 21
The lubricating powder 4 that has flowed further into the die case 17
It flows only into the die 18 and does not flow into other parts at all.

Further, when removing the die case 17, the lubricating powder 4 in the lubricating powder supply section 8 does not flow out into the die case mounting section 7 by performing the procedure in the reverse order.

In each of the above embodiments, the rotation shaft hole 19 is formed in the partition wall 9 and the holding plate 16, respectively, and the shielding plate 12
Although the rotation shaft 14 is formed in the above, it is also possible to omit it.

Further, the holding plate 16 can be fixed to the partition wall 9 with bolts or by being pressed by the die case 17. Thereby, the shielding plate 12 can be smoothly rotated without being pressed against the partition wall 9.

[Effect of idea]

Since the dry die box of the present invention has the above configuration, lubricating powder does not flow into the die case mounting part when changing dies, and there is no need to remove lubricating powder when installing the die case after changing dies. The work becomes easier and the work time can be significantly shortened. In addition, since the die can be mounted in an accurate position, there is no need to center the die, and high-quality wire drawing becomes possible, which has great practical value.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the dry die box of the present invention, A is a sectional view, B is a sectional view taken along line X-X at A, and Fig. 2 A, B, and C are respectively illustrative of the dry die box of the present invention. FIG. 3 is a perspective view showing one embodiment of the partition wall, shielding plate, and presser plate used; FIG. Figure 4 shows another embodiment of the dry die box of the present invention, where A is a sectional view, B is a sectional view taken along line X-X at A, and Figure 5 A, B, and C are views of the dry die box of the present invention. A perspective view showing another example of the partition wall, shielding plate, and presser plate to be used; FIGS. The explanatory drawing, FIG. 7, is a sectional view showing a conventional die box. 1...Box body, 2,18...Dice,
3, 17... Dice case, 4... Lubricating powder, 5... Metal wire, 6... Dice box, 7...
...Dice case attachment part, 8...Lubricating powder supply part, 9...Partition wall, 10, 13, 21...Lubricating powder inflow hole, 11...Slit, 12...Shielding plate, 14...Rotating shaft, 15... ...Opening, 16...
Holding plate, 19...rotating shaft hole, 20... recess.

Claims (1)

[Claims for Utility Model Registration] (1) In a die box 6 having a die case mounting part 7 and a lubricating powder supply part 8, the die box 6 is connected to the die case by using a partition wall 9 having a lubricating powder inflow hole 10. The mounting part 7 and the lubricating powder supply part 8 are partitioned, and the partition wall 9
A holding plate 16 is disposed on the wall surface on the side of the die case mounting portion 7, which has a substantially circular recess 20 having a notch 22 at the top, and a lubricating powder inflow hole 21 at the bottom of the recess 20. Between the partition wall 9 and the presser plate 16, the recess 2 of the presser plate 16
A dry die box characterized in that a disc-shaped shielding plate 12 provided with a lubricating powder inflow hole 13 is rotatably arranged inside the dry die box. (2) Slits 11 are provided from the upper part of the partition wall 9 and the holding plate 16 to the lubricating powder inlet holes 10 and 21, and an opening 15 communicating with the lubricating powder inlet hole 13 is formed in a part of the shielding plate 12. A dry die box according to claim 1 of the utility model registration claim.