JP2000343332A - Wire bobbin for wire cut electric discharge machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply visually confirm the residual wire amount of a wire for a wire cut electric discharge machine by providing a discriminating means using a scale on the inside of a bobbin on which a wire for wire cut electric discharge machine is wound. SOLUTION: In measuring the weight of a bobbin 1 to confirm the winding amount of a wire when a wire cut electric discharge machine is in use, it is necessary to detach the bobbin 1 from the machine, thus it is very inconvenient. In a transparent winding wire bobbin using 100% virgin polystyrene, the residual wire amount of a wire can be visually confirmed comparatively easily, and the strength is low. When rubber is added to virgin polystyrene, it does not become transparent, thus it is difficult to visually confirm the residual wire amount. The overcome such a disadvantage, a discriminating means (print, marking, label) 2 using a scale is applied to the inside of the bobbin 1. Thus, the residual wire amount of a wire can be visually confirmed simply. Excellent shock resistance can be obtained and reuse can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire bobbin 1 for a wire-cut electric discharge machine, in which the residual dose of a wire for a wire-cut electric discharge machine can be easily confirmed visually, and it is very inexpensive. The present invention relates to a wire bobbin 1 for a wire cut electric discharge machine that can be easily implemented, has excellent impact resistance, and is easy to reuse.

[0002]

2. Description of the Related Art If a wire runs out during use of a wire-cut electric discharge machine, the bobbin must be replaced, and the operation time is inevitably increased. Further, in the case of unmanned driving such as at night, if the wires are lost, a scheduled operation is not completed and a fatal situation occurs. Measuring the weight of the bobbin to check the winding amount
This is very inconvenient for the operator since the bobbin must be removed from the machine once. Also, in order to visually determine the weight without removing the bobbin from the machine, considerable skill is required, and it is almost impossible to accurately confirm the weight visually. It is very important to use a wire-cut electric discharge machine to make it possible to always visually check how long the wire will run out after work. Conventionally, a transparent winding bobbin using 100% of virgin polystyrene, which can be used to visually confirm the residual dose of the wire relatively easily,
Not only can the exact winding amount not be confirmed visually, but also the strength is weak. In addition, virgin polystyrene
When 0% is used, the strength is further reduced as compared with the conventional bobbin, so that the bobbin cannot be reused, resulting in a disadvantage that the bobbin becomes expensive. To make up for this shortcoming,
There are products that have increased strength by adding rubber or the like to virgin polystyrene. This product has a feature that it can be reused because its strength is high and its strength does not decrease even if it is reused. However, since it is not transparent due to the addition of rubber or the like, there is a disadvantage that it is difficult to visually check the residual dose.

[0003]

The problem to be solved by the present invention is that not only the residual dose of the wire for a wire cut electric discharge machine cannot be easily checked visually,
It is very expensive, weak, and cannot be reused.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve these problems, and as a result of intensive studies, a bobbin has been developed so that the residual dose of a wire for a wire cut electric discharge machine can be easily confirmed visually. A wire bobbin 1 for a wire-cut electric discharge machine, characterized in that an identification means by a scale is provided inside the wire bobbin.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a wire bobbin for a wire cut electric discharge machine according to the present invention will be described below in detail with reference to the accompanying drawings.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 (a) shows a place where it is preferable to apply a discriminating means (printing, engraving and labeling) inside the bobbin so that the residual dose of the wire can be easily checked visually. FIG. 1 (b) is a perspective view of a wire bobbin 1 for a wire cut electric discharge machine according to the present invention, showing a label 2 provided on the wire bobbin 1 for a wire cut electric discharge machine according to the first embodiment of the present invention. FIG. The shaded area in FIG. 1 (a) is a place where it is preferable to print, engrave, or apply a scale so that the residual dose can be easily confirmed visually, and it is sufficient if it is inside the bobbin and not necessarily this place. It doesn't have to be.
As is apparent from the figure, the present invention has a discriminating means (printing, engraving, label, etc.) using a scale inside the bobbin so that the residual dose of the wire for the wire cut electric discharge machine can be easily checked visually. It is a wire bobbin 1 for a wire cut electric discharge machine provided. Specific methods of the identification means of the present invention include the following methods. 1.
A scale is printed inside the bobbin so that the remaining dose of the bobbin can be easily checked visually. 2. A scale is marked on the inside of the bobbin so that the remaining dose of the bobbin can be easily checked visually. 3. A label is attached inside the bobbin so that the remaining dose of the bobbin can be easily checked visually. Next, FIG. 2 is a sectional explanatory view of the wire bobbin 1 for a wire cut electric discharge machine of the present invention. As is clear from FIG. 2, the scales of the winding amount are not at equal intervals, and the theoretical calculation of the winding height will be described below.

[0007]

M = (W / a) −1 (1)

[0008]

## EQU2 ## n = (D-d-2G) / 2a (2)

[0009]

L = mnπ (α + na) × 10 ⁻³ (3)

Here, as shown in FIG. 2, α: reel diameter (mm) D: outer reel diameter (mm) d: inner reel diameter (mm) W: reel width (mm) G: Unwound dimensions (mm) a: Wire outer diameter (mm) L: Wire length (m) m: Number of wire layers in one layer n: Number of wire layers

The wire length is obtained from the above equation (3). When the scale is displayed by weight, the value obtained by the above equation (3) may be multiplied by the weight per unit length.
The bobbin of the present invention can not only easily confirm the residual dose of the wire for a wire-cut electric discharge machine, but also can be implemented very inexpensively and easily. This is a wire bobbin 1 for a wire cut electric discharge machine that is easy to use. When the wire for a wire-cut electric discharge machine was wound around the wire bobbin 1 for a wire-cut electric discharge machine of the present invention and actually used, the residual dose could be easily confirmed visually even if the bobbin was not transparent.

In the embodiment of the present invention, the shape of the identification means (printing, engraving, label) provided with a scale capable of visually confirming the residual dose as shown in the figure has been described as a representative example. A bobbin of another wire may be used. Further, as shown in the figure, the display format of the scale may be changed, and it goes without saying that the design is within the scope of the present invention.

[0013]

As described above, by using the bobbin of the present invention, the residual dose of the wire for the wire-cut electric discharge machine can be easily confirmed visually, and also very inexpensive and easy. The industrial value is great because it has an excellent effect of being excellent in impact resistance and facilitating reuse.

[Brief description of the drawings]

FIG. 1 (a) shows a place where it is preferable to apply a discriminating means (printing, engraving, labeling) by a scale inside the bobbin so that the residual dose of the wire can be easily checked visually (hatched portion). FIG. 1 is a perspective view of a wire bobbin 1 for a wire cut electric discharge machine according to the present invention, showing the above. (B) is a first embodiment of the present invention, which is a wire bobbin for a wire cut electric discharge machine.
FIG. 2 is an enlarged plan view of a label 2 provided in the apparatus 1 .

FIG. 2 is an explanatory sectional view of a wire bobbin 1 for a wire cut electric discharge machine according to the present invention.

[Description of Signs] 1 Wire bobbin for wire cut electric discharge machine 2 Label of the present invention

Claims (1)

[Claims] 1. A wire cutting device comprising: a discriminating means (printing, engraving, label) provided inside a bobbin so that a residual dose of a wire for a wire cutting electric discharge machine can be visually checked. Wire bobbin for electric discharge machine 1 .