JP2721109B2 - Inclined band saw machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inclined band saw for cutting wood, metal, non-ferrous metal and other cutting materials.

[0002]

2. Description of the Related Art Conventionally, a band saw of this type has a band saw wound endlessly between wheels arranged on upper and lower portions of a support frame, respectively. Was fixed.

Therefore, when cutting a cutting material obliquely, an oblique cutting operation has been performed by inclining a table on which the cutting material is placed.

[0004]

However, according to the above-mentioned conventional band sawing machine, when the cutter is cut at an angle, that is, at an angle, the table is inclined, so that the cut material is slippery and the two cut pieces are cut. Of the materials, one slides to the outside of the band saw and the other slides to the band saw side, so it is necessary to pay much attention to the cutting operation itself, and it is dangerous for the operator, and when the cutting material is large, There was a problem that it would require heavy muscle work.

Accordingly, an object of the present invention is to provide an inclined band saw machine capable of solving the above problems.

[0006]

In order to solve the above-mentioned problems, an inclined band sawing machine according to the present invention arranges an arc-shaped guide rail on a support frame in a vertical plane, and guides the guide rail through a guide roller. The tilt frame is guided in a tiltable manner in a vertical plane, wheels are rotatably provided on upper and lower portions of the tilt frame, and a band saw is wound around these wheels endlessly. A rotation drive device for rotating the support frame is provided, a tilt device for tilting the tilt frame is provided on the support frame side, a table having a groove portion for inserting a band saw in the middle of the support frame is provided, and The tilting center of the tilting frame is configured to be a groove position formed on the table.

[0007]

According to the above construction, since the inclined frame provided with the band saw is configured to be tiltable, unlike the case where the table is inclined, even when the cut material is cut obliquely, the cut material slides. No need to worry.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 is a U-shaped support frame in a side view,
On both sides thereof, an arc-shaped lower guide rail 2 and an arc-shaped upper guide rail 3 are provided in the vertical plane, respectively. The inclined frame 5 is supported and guided in a tiltable manner via guide rollers 4 provided in the respective sections.

The inclined frame 5 has a vertical frame portion 5a,
An upper frame portion 5b provided above the vertical frame portion 5a and a lower frame portion 5c provided below the vertical frame portion 5a are provided. Upper and lower wheels 6 and 7 are rotatably provided on the upper frame portion 5b and the lower frame portion 5c of the inclined frame 5, respectively. It is wound around.

The lower frame 5c of the inclined frame 5 is provided with a rotation drive device 11 for rotating the lower wheel 7. The rotation drive device 11 includes a drive motor 12 provided on the inclined frame 5, a drive pulley 13 attached to an output shaft of the drive motor 12, and a driven drive attached to a support shaft of the lower wheel 7. Pulley 14
And a belt 15 wound between these pulleys 13 and 14.

Therefore, when the drive motor 12 is operated, the lower pulley 7 is driven via both pulleys 13 and 14.
Is rotated, and the band saw 8 is driven. The support frame 1 is provided with a tilting device 21 for tilting the tilt frame 5 in a vertical plane. The tilting device 21 includes a drive motor 22 provided on the back side of the support frame 1, a drive sprocket 23 provided on an output shaft of the drive motor 22, and a plurality of And one end is connected to the lower part of the inclined frame 5 and the other end is sequentially wound around the driving sprocket 23 and the guide sprocket 24, and then connected to the lower part of the inclined frame 5 again. And an inclined chain 25.

Accordingly, when the driving motor 22 is operated, the tilting chain 25 is moved via the driving sprocket 23, and the tilting frame 5 is tilted in the vertical plane as shown by the arrow a. You.

Although not shown, the tilting chain 25
The tension sprocket is placed at an appropriate position to tension the
Further, a fixing device for fixing the inclined position of the inclined frame 5 is provided. In this fixing device, for example, a friction shoe is pressed against a flange portion of the lower guide rail 2 by an air cylinder to fix the inclined frame 5 to the support frame 1 side.

At a position between the upper and lower wheels 6 and 7 of the support frame 1, a table 31 on which a cutting material is placed is provided in a horizontal direction. A groove 32 for inserting and guiding the band saw 8 wound around 7 is formed. Further, the position of the groove 32 is determined by the inclination frame 5
Is tilted so that it coincides with the tilt center of the band saw 8 when tilted. That is, the tilt center of the tilt frame 5 coincides with the intersection of the band saw 8 and the surface of the table 31 in the groove 32. Therefore, the band saw 8 always passes through the groove 32 of the table 31 irrespective of the angle at which the inclined frame 5 is tilted.

An encoder (not shown) for detecting the tilt angle of the tilt frame 5 is attached, and the position of the non-drive side wheel, that is, the upper wheel 6 is set with respect to the lower wheel 7. The relative position can be adjusted.

Therefore, in the above configuration, when cutting the cutting material obliquely, first, the drive motor 22 is operated to tilt the inclined frame 5 to the cutting angle. For example, it is indicated at a position such as (a) or (b). Of course, at the time of this tilting, the fixing device is released. Then, after that, if the band saw 8 is driven, the cutting material is placed on the table 31, and cutting is performed, the cutting material can be easily cut diagonally. Of course, as shown in the position (c), if the inclined frame 5 is made vertical, normal cutting can be performed.

As described above, the inclined frame 5 provided with the band saw 8 is configured to be tiltable.
Unlike the one that tilts the table, even if the cutting material is cut diagonally, the table is fixed horizontally, so there is no need to worry about slipping of the cut material, making the cutting work extremely easy and safe In addition, even when the cutting material is large, the labor is not so much required, so that the operator can be released from heavy muscle work.

In the above embodiment, the upper guide rail and the lower guide rail are provided separately, but they may be integrated into one guide rail. Also, the upper wheel can be driven.

[0019]

As described above, according to the configuration of the present invention, since the inclined frame provided with the band saw is configured to be tiltable, unlike the conventional one in which the table is inclined, the cutting material is inclined. Even in the case of cutting, there is no need to worry about slipping of the cut material, so that the cutting operation can be performed extremely easily and safely, and the heavy lifting operation can be released from the operator.

[Brief description of the drawings]

FIG. 1 is a side view of an inclined band saw machine according to an embodiment of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support frame 2 Lower guide rail 3 Upper guide rail 4 Guide roller 5 Inclined frame 6 Wheel 7 Wheel 8 Band saw 11 Rotary drive device 21 Tilt device 31 Table 32 Groove

Continued on the front page (72) Inventor Shigeyuki Mizutani 5-3-28 Nishikujo, Konohana-ku, Osaka City, Osaka Inside Hitachi Zosen Corporation

Claims (1)

(57) [Claims] An arc-shaped guide rail is arranged on a support frame in a vertical plane, and an inclined frame is guided on the guide rail via a guide roller so as to be tiltable in the vertical plane. The wheels are rotatably provided, and a band saw is wound around these wheels endlessly, and a rotation drive device for rotating the wheels is provided on the inclined frame side, and the inclined frame is tilted on the support frame side. A table provided with a groove for inserting a band saw in the middle of the support frame, and a tilting center of the inclined frame is positioned at a groove formed on the table. An inclined band saw machine characterized by the following.