JP2543984Y2 - Wire saw drive - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention circulates an endless cutting wire wrapped around an object to be cut by a wire drive wheel under a required tension when the object to be cut made of reinforced concrete or the like is cut by a wire saw. The present invention relates to a wire-saw drive device for causing the wire-saw drive device to operate.

[0002]

2. Description of the Related Art As a wire saw driving device, Japanese Patent Application Laid-Open No. 62-112866 and U.S. Pat. No. 4,893,607, filed by the present applicant, drive a wire saw along a rack or rail laid horizontally. There is disclosed an apparatus in which a wheel is moved while being rotated.

However, in the wire saw driving device, the cutting work site is narrow, for example, indoors, and there is not enough space for disposing a rack or rail around the object to be cut and moving the wire driving wheels in the horizontal direction. In such a case, it was difficult to sufficiently exhibit the performance.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a wire saw drive which can be used even in a limited and narrow place.

The invention according to the present invention is directed to a wire saw driving device , comprising: a guide shaft having an adjustable length;
Shaft fixing means for fixing each to the lower stationary element, a movable base movably engaged with the guide shaft in the axial direction thereof, and a rotatable mount provided on the movable base for circulating the cutting wire endlessly. A wire drive wheel, a wire guide wheel rotatably provided on at least one of the stationary element and the guide shaft, and guiding at least one of the tension side and the loose side of the cutting wire between the workpiece and the wire drive wheel. , A table moving means for moving the movable table along the guide shaft, and drive wheel rotating means for rotating the wire drive wheels.

In the above case, for example, a pinion that meshes with a guide shaft composed of a toothed rack may be provided on a movable table, and the pinion may be rotated by a motor as a table moving means, or the pinion may slide on the guide shaft. The movable table that has been engaged as possible may be directly moved by a chain mechanism or the like as a table moving unit.

[0007]

When the wire saw driving device having the above-mentioned structure is used, a cutting wire is endlessly wound around a workpiece and a wire driving wheel via a wire guide wheel. When the wire driving wheels on the movable table were rotated by the driving wheel rotating means and the movable table was moved upward or downward along the guide shaft by the table moving means, the cutting wire was wound around the workpiece. In this state, the workpiece is circulated under the required tension, whereby the workpiece is cut.

The shaft fixing means fixes each end of the guide shaft to upper and lower stationary elements such as a ceiling and a floor, respectively, such as an anchor , and in this case, according to the distance between the upper and lower stationary elements. The length of the guide shaft is adjustable .

The wire guide wheel may be elastically supported by a spring mechanism, fluid pressure, or the like so as to reduce or absorb a sudden change in tension of the cutting wire during circulating travel. It may have a function of adjusting the winding angle of the cutting wire. Preferably, the position of the wire guide wheel is adjustable according to the cutting conditions.

In the case where two or more wire guide wheels are provided on at least one of the tension side and the loose side of the cutting wire, the excessive length of the cutting wire can be retained between the wire guide wheels. In this case, it is preferable that the position of the wire guide wheel can be adjusted according to the excess length of the cutting wire.

[0011]

[Example 1]

FIG. 1 is a side view of a wire saw driving device according to an embodiment of the present invention. In the figure, a guide shaft 1 is a toothed rack 2
And a screw portion 4 screwed to the tip thereof via an adjuster 3
The adjustment length of the screw 4 can be adjusted by the adjuster 3, and thus the length of the entire guide shaft 1 can be adjusted.
The base end of the rack 2 is fixed to the floor 5 with an anchor 7 via a pedestal 6, and the tip of the screw 4 is fixed to the ceiling 8 with an anchor 10 via a pedestal 9. It is fixed vertically. The floor 5 and the ceiling 8 correspond to stationary elements in the present invention, and the anchors 7 and 10 constitute shaft fixing means in the present invention.

A movable table 11 is movably engaged in the axial direction at the middle of the rack section 2.
A pinion 13 meshing with the tooth portion 12 is pivotally mounted, and a motor 15 for rotating the pinion 13 via a worm gear mechanism 14 is mounted. Further, a wire drive wheel 16 is pivotally mounted and the wire drive wheel 16 is rotated. A motor 17 is mounted, and two wire guide wheels 18 and 19 are provided at the base end of the rack portion 2 so that the positions thereof can be adjusted. The motor 15 and the motor 17 constitute a platform moving means and a driving wheel rotating means in the present invention, respectively.

On the other hand, an object 20 to be cut vertically is constructed in front of the vertically suspended guide shaft 1 as described above.
Wire auxiliary guide wheels 21 and 2 are provided above and below the front wall surface of the workpiece 20.
2 are fixed by anchors 23 and 24, respectively.

The cutting wire 25 is endlessly wrapped around the workpiece 20 and the wire drive wheel 16 via wire auxiliary guide wheels 21 and 22 and wire guide wheels 18 and 19, respectively.
In this case, the tight side 25a of the cutting wire 25 is guided by the wire auxiliary guide wheel 21 and the wire guide wheel 18, and its loose side 25b is guided by the wire auxiliary guide wheel 22 and the wire guide wheel 19.

In the above configuration, when the wire driving wheel 16 is rotated clockwise in the drawing by the motor 17 and is moved upward along the guide shaft 1 by the motor 15, the cutting wire 25 Under the required tension between the wire auxiliary guide wheels 21 and 2
2 and the wire guide wheels 18 and 19 respectively circulate, whereby the workpiece 20 is cut vertically.

Embodiment 2 FIG. 2 is a side view of a wire saw driving device according to another embodiment of the present invention. In the figure, an auxiliary shaft 26 is provided in parallel with a rack portion 2 of a guide shaft 1, an elongated hole 27 is formed in an upper part of the auxiliary shaft 26 in the axial direction, and a loosening of a cutting wire 25 is provided at a base end of the auxiliary shaft 26. A wire guide wheel 19 for guiding the side 25b is provided, and further above the tension side 2 of the cutting wire 25.
A wire guide wheel 18m for guiding the wire 5a is provided, and a wire guide wheel 18m for guiding the tight side 25a of the cutting wire 25 is similarly provided in the elongated hole 27 of the auxiliary shaft 26 so as to be adjustable in position. Since the configuration other than the above is the same as that of the first embodiment shown in FIG. 1, the description of the components will be omitted.

In this case, the excess length of the cutting wire 25 is retained in a Z-shape on the tight side 25a of the cutting wire 25 by the two wire guide wheels 18 and 18m. The movable distance of the wheel 16 can be effectively set.

[0018]

As described above, according to the wire saw driving device according to the present invention, the wire driving wheel may be moved in the vertical direction when cutting, so that it can be easily cut even in a limited narrow place such as in a room. Work can be performed.

In the present invention, the shaft fixing means includes a guide shaft.
Since each end is fixed to the upper and lower stationary elements respectively,
The guide shaft can be securely arranged in the vertical direction.
The length of the guide can be adjusted so that a specific guide shaft can be
It can be used universally according to the distance between the stop elements. Further, in the one in which the position of the wire guide wheel is adjustable, the cutting wire can be arranged between the cutting object and the wire drive wheel with good workability according to the cutting conditions.

Further, in the present invention, in which two or more wire guide wheels are provided on at least one of the tension side and the loose side of the cutting wire, the movable distance of the wire drive wheel with respect to the guide shaft can be effectively set. It is possible to effectively cope with a case where the cutting wire has an excessive length or a case where a long guide shaft cannot be used. In this case, if the position of the wire guide wheel is adjustable, it is possible to suitably cope with the excessive length of the cutting wire.

[Brief description of the drawings]

FIG. 1 is a side view of a wire saw driving device according to an embodiment of the present invention.

FIG. 2 is a side view of a wire saw driving device according to another embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 guide shaft 5 floor 7 anchor 8 ceiling 10 anchor 11 movable base 15 motor 16 wire drive wheel 17 motor 18 wire guide wheel 19 wire guide wheel 20 cut object 25 cutting wire 25a cutting wire tight side 25b for cutting Loose side of wire

Claims (4)

(57) [Scope of request for utility model registration] 1. A guide shaft having an adjustable length, and a guide shaft.
Shaft fixing means for fixing each end of the upper and lower stationary elements respectively,
A movable base movably engaged with the guide shaft in the axial direction thereof; a wire drive wheel rotatably provided on the movable base for circulating the cutting wire endlessly; and at least one of the stationary element and the guide shaft And a wire guide wheel that guides at least one of the tension side and the loose side of the cutting wire between the object to be cut and the wire drive wheel, and a table movement that moves the movable table along the guide shaft. Wire saw driving device comprising: a driving means for rotating the wire driving means. 2. A guide shaft is provided between a toothed rack portion and a tip thereof.
It consists of a screw part screwed through an adjuster,
The length of the threaded part is adjusted by a caster.
The wire saw driving device according to claim 1. 3. The wire saw driving device according to claim 1, wherein two or more wire guide wheels are provided on at least one of the tension side and the loose side of the cutting wire. 4. A wire saw drive according to claim 1, wherein the position of the wire guide is adjustable.