JPH01240222A - Wire collecting box - Google Patents

Abstract

PURPOSE:To effectively carry out the collection of wires and increase the housing capacity of a wire collecting box while reduce the number of replacing times thereof by making a drum having a bottom portion and an open top rotatable and vertically swingable. CONSTITUTION:A cylindrical drum 8 having a bottom face 10 and an open top is provided in a wire collecting box 3 and used wires are collected in the drum 8. A shaft inserting hole 11 is provided on the bottom face 10 of the drum 8, which is vertically movably rotated by means of a driving shaft 16 provided on an outer case 7. An annular uneven-form rail 13 is installed on the bottom portion of the outer case 7 and the drum 8 is placed thereon through rubber rollers 12 fixed to the bottom face 10 of the drum 8. Hence, the drum 8 is slowly rotated by means of the driving shaft 16 while being vertically vibrated due to the rollers 12 which ride over the uneven face of the rail 13. By this structure, the wires being housed are put closer improving a housing capacity while reducing the number of replacing times leading to increased in operating time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a wire collection box for a wire-cut electrical discharge machine.

In the conventional wire cut discharge generator 11fi, the used wire is collected by winding it onto a winding bobbin or by introducing it into a wire collection box.

As shown in Fig. 2, the wire collection box 3 is placed at the end of the wire A7 path 2 in the wire-cut electrical discharge machine 1, and is sandwiched between the feed roller 4 and the pinch roller 5. Used wire 6 being pulled out
It is easy to use, as all you have to do is drop it in, and it has a larger storage capacity than a winding bobbin, so it is widely used.

However, since the used wire 6 has residual curls and is twisted while passing through the wire path 2, simply dropping it into the wire collection box will cause the curled wires to pile up haphazardly and become bulky. capacity will be significantly reduced.

In order to solve this problem, as shown in FIG.
Attempts have been made to slowly rotate the drum 8 (about 5 to 1 Qr, p, m) with a motor 9 fixed to the bottom of the outer box 7.

According to this, the curls of the wires 6 are stretched as the drum 8 rotates, and the wires 6 are stored in a relatively tidy manner. Due to the degree of inclination when folding in, there is a density in the folding (not shown in the figure), and a bridge state occurs where the dense parts form a hierarchy and there is a space between them, which also increases the capacity. is causing light damage.

On the other hand, from the viewpoint of the entire structure 114i, j) of the wire electric discharge machine, the wire collection box cannot be unnecessarily crowded.

In the end, even though the current Wire A7 collection box has an automatic wire connection mechanism and can operate unattended for long periods of time, the current Wire A7 collection box does not require a human to replace the wire collection box. The disadvantage is that it requires 1 d3, and the capacity of the wire collection box -C is at least 6
Approximately 20 hours are required.

Problems to be Solved by the Invention It is an object of the present invention to provide a wire collection box that can store used wires without wasting storage space and has a large storage capacity.

Means for solving the problem] Discharging] 7. Collect the collection box. This invention is equipped with a rotatably mounted drum having an open bottom on the L side, and a rotational drive mechanism and a vertical vibration mechanism for the drum.

The working drum rotates to straighten out the curls of the wires and store them in an organized manner.

- The vertical vibration mechanism is housed by giving vertical vibration to the drum.
Eliminate C-wire spacing and bridge conditions.

Embodiment In FIG. 1, a wire collection box 3 includes an outer box 7 and a drum 8, and the drum 8 is rotated by a motor.

The drum 8 is cylindrical with a circular cross section, an open top, and a bottom 10. The bottom 10 has a shaft insertion hole 11 in the center and a plurality of rubber ports 12 on the outer periphery of the bottom. There is. The rollers 12 are mounted at positions symmetrical to each other with respect to the center of the bottom surface and movable in a circular orbit (
is being pulled.

An annular uneven rail 13 (Fig. 4) is attached to the stay 1 on the outer box 7.
4, and the drum 8 is placed on the rail 13 via rollers 12.

The uneven rail 13, etc.] port 12 constitutes a vertical vibration mechanism of the drum, and the two sides of the rail 13 have a plurality of convex portions 15, one of which is a gently sloped surface and the other side of which is cut off. An annular rail 1 running in the same direction along a circular track
They are located at mutually symmetrical positions with respect to the center of 3.

In contrast to the outer box 7, the drum 8 has a shaft insertion hole 1 provided in the bottom surface 10.
1 is a drive shaft 1 from a motor 9 fixed to the bottom of the outer box 7.
6 to be installed.

The shaft insertion hole 11 and the drive shaft 16 are spline-fitted, and the motor 9, the drive shaft 16, and the shaft insertion hole 11 constitute a rotational drive mechanism for the drum 8.

Reference numeral 17 is a moving wheel used when separating and moving the outer box 7 from the wire electric discharge machine 1.

When the wire collection box 3 is set in the electric discharge machine 1 and the motor 9 is driven, the drum 8 slowly rotates in one direction via the drive shaft 16 and the used wire 6 is stored. Ru. When the drum 8 rotates, the rollers 12 provided on the bottom surface ride over the convex portions 15 of the uneven rail 13, causing the drum 8 to vibrate in the vertical direction at regular intervals.
III) occurs and the gap between the wires 6 housed inside is closed, and a bridge condition occurs and is immediately destroyed even if 1=. In addition, in this embodiment, since the rollers 12 and the convex portions 15 are provided symmetrically with respect to the circular bottom surface 10 and the center of the annular rail 13, the drum 8 is lifted in parallel,
It also falls.

FIG. 5 shows another embodiment, in which the shape of the bottom surface of the drum 8 is different from that of the first embodiment, and a recessed portion 18 is formed in the bottom surface 10 by fitting the shaft insertion hole 11 inside. The rotational drive mechanism of the drum 8 is housed in that part, and the outer peripheral part of the bottom surface of the drum 8 is placed directly on the bottom surface of the outer box 7 via the rollers 12. In this case, the uneven rail 13 is particularly necessary. Instead, the protrusion 15 is provided directly on the bottom surface of the outer box 7.

In this configuration, inside the drum 8, the fitting portion 18
An annular groove is added around the wire, further increasing the wire accommodation capacity.

Note that the shape and arrangement of the convex portion 15 and the mode of vibration associated therewith can be variously adopted, from those corresponding to so-called vibrations to those corresponding to shocks.

Effects of the Invention The storage capacity of used wire A7 is improved, the wire collection box of the same size as A3 is stored, the number of replacements is reduced, and the unattended operation time of the wire electric discharge machine can be extended.

The collected used wires are not bulky and are easy to dispose of afterwards.

[Brief explanation of the drawing]

Fig. 1 is a front view shown in cross section, Fig. 2 is a schematic front view, Fig. 3 is a front view shown in cross section, and Fig. 4 is a perspective view.
FIG. 5 is a front view in section. 1...Wai V cut electric discharge machine, 2...Wai A7 path, 3...Wire collection box, 4...Feed roller,
5... Bind roller, 6... Used wire, 7.
...outer box, 8...drum, 9...Tanabata, 10...
・Bottom surface, 11...shaft insertion hole, 12...roller, 13.
... Uneven rail, 1/I... Stay, 15... Convex portion, 16... Drive shaft, 17... Moving wheel, 18... Concave portion.

Claims (1)

[Claims] A wire collection box for a wire-cut electrical discharge machine, characterized in that a drum having an open top and a bottom is rotatably mounted, and is equipped with a drum rotation drive mechanism and a vertical vibration mechanism.