JP2786472B2 - Vertical band sawing machine - Google Patents

Description

The present invention relates to a vertical band sawing machine, and more particularly, to a vertical band sawing line used for cutting large and long plate materials. It relates to improvement of a band saw machine.

(Prior Art) Conventionally, for example, in a vertical band sawing machine used for cutting lines of large and long plate materials, there is a tilt type band saw, in which a tilt, that is, a turning center is taken on a table upper surface. There must be. Therefore, a guide portion for guiding the saw blade housing in the cutting direction is provided at a lower portion of a transfer table on which a work material is placed and transferred.

(Problems to be Solved by the Invention) By the way, the above-mentioned conventional vertical band sawing machine generates a large amount of chips and a large amount of cutting fluid when cutting a large plate material (slab, bloom, billet, etc.). And its collection must be facilitated. However, since the guide portion for guiding the saw blade housing in the cutting direction is located at the lower portion of the table, it prevents the chip discharge processing and the collection of the cutting fluid.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the conventional problems as described above, in the present invention, an endless band saw blade provided in a vertical saw blade housing is driven to travel. By moving the saw blade housing in the cutting direction under the tilted state, a vertical band sawing machine for cutting the work material is erected, and a frame extending in the cutting direction is erected. A guide portion for movably supporting the saw blade housing in the cutting direction in a state where the saw blade housing is suspended, and the guide portion having a height considerably higher than a support height position of a transfer table for supporting a work material. And a chip conveyor for discharging chips and a cutting fluid tank for collecting cutting fluid are provided below the saw blade housing at the lower part of the frame. Provided chips on both sides of the lower frame, a protective cover for preventing scattering of the cutting fluid, respectively, each protective cover chips,
When the cutting fluid is prevented from being scattered, the upper end side of each protective cover is located at a height position close to the supporting height position of the transfer table, and at least one of the plurality of protective covers is provided. The protective cover is configured to be openable and closable.

(Operation) According to the above configuration, the workpiece can be cut by moving the saw blade housing in the cutting direction while the endless band saw blade is driven to travel. The cutting fluid used for cutting is collected by a cutting fluid tank, and chips generated during cutting are carried out by a chip conveyor.

Here, since the guide portion for supporting the saw blade housing movably in the cutting direction is configured at a position considerably higher than the support height position of the transfer table, as in the prior art,
The guide portion does not hinder the processing of collecting the cutting fluid and carrying out the chips. Further, the plurality of protective covers can prevent chips and cutting fluid from scattering. Particularly, when the protection cover is configured to prevent chips and cutting fluid from being scattered, the upper end side of each protection cover is located at a height position close to the support height position of the transfer table. The prevention of scattering of cutting chips and cutting fluid is more reliable.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 1 and 2, a band saw blade 9 is hung around a drive wheel 5 and a driven wheel 7 disposed vertically on a U-shaped saw blade housing 3 of a vertical band saw machine 1. ing. Band saw blade 9 stretched between the driven wheels 7
The upper saw blade guide 11 and the lower saw blade guide 13 are supported by the saw blade housing 3, and the upper saw blade guide 11 can be moved up and down by the guide post 15 and fixed after adjusting the position. The position of 13 is fixed. By the upper saw blade guide 11 and the lower saw blade guide 13, the band saw blade 9 is twisted by 90 ° in the thickness direction from the tooth tip to the torso only during the interval. The twist angle is not limited to 90 °, but may be 90 ° or less.

Further, the saw blade housing 3 is suspended, for example, via a guide portion 21 (for example, a linear bearing or the like) provided on the upper surface of the upper frame 19 of the left and right frames 17 erected from the floor. Still further, the saw blade housing 3
A servomotor 23 is provided on the upper surface of the saw blade housing 3, and a pinion 27 is interlocked via a speed reducer 25. The pinion 27 meshes with a rack 29 provided on the upper frame 19 of the frame 17.

With the above configuration, driving the servo motor 23 causes the pinion 27 to rotate via the speed reducer 25, and the pinion 27
Is engaged with the rack 29 fixed to the upper frame 19, so that the saw blade housing 3 moves in the left-right direction in FIG. 2, that is, the cutting direction indicated by the X arrow in the drawing or the standby position (indicated by a two-dot chain line). Be free.

In the direction perpendicular to the cutting direction of the vertical band sawing machine 1, a transfer table 33 provided with a plurality of rollers 31 for mounting and transferring the work material W is provided, and the transfer table 33 is provided with the saw blade housing 3. It is provided without contact when the U-shaped portion 35 enters.

The upper surface of the roller 31 of the transfer table 33 becomes the reference surface Y, on which the workpiece W is placed. After positioning the work material W,
A clamp cylinder 39 provided with a holding plate 37 at the end for holding and fixing, and a fixed-side stopper plate 41 serving as a reference
Are provided on the rollers 31 of the transport table 33. Furthermore,
In the lower frame 43 of the frame 17, a chip conveyor 45 and a cutting fluid tank 47 are provided for collecting cutting chips and cutting fluid generated when the workpiece W is cut by the band saw blade 9 of the vertical band sawing machine 1. Have been. Protective covers 49 for preventing the swarf and the cutting fluid from being scattered are provided on both sides of the lower frame 43 so as to be freely opened and closed.

In the above configuration, the workpiece W placed on the rollers 31 of the transport table 33 is sent to a desired cutting position, and is clamped and fixed by the operation of the clamp cylinder 39. At this time, the vertical band sawing machine 1 is at a standby position indicated by a two-dot chain line in FIG. 2 and the pinion 27 is rotated via the speed reducer 25 by driving the servo motor 23. Since the pinion 27 is engaged with the rack 29, the saw blade housing 3 moves forward (to the right in FIG. 2) to cut the workpiece W fixed on the roller 31 by the driven band saw blade 9. Done.

Chips generated during the cutting process are not scattered by the protective cover 49 provided on the lower frame 43 of the frame 17 and ride on the chip conveyor 45, and are driven by the chip conveyor 45 as shown by a Z arrow on the right side in FIG. Chips are discharged and processed. Further, at the time of cutting of the work material W, cutting is performed by injecting a cutting fluid to a cutting portion, and the cutting fluid is collected in a cutting fluid tank 47 provided in the lower frame 43 and is not shown. Is discharged from the outlet and circulated.

As described above, for example, in a cutting line of a large plate material (slab, bloom, billet, etc.), when this embodiment is employed as an aluminum billet cutting machine, aluminum chips become foil-like and scatter around. Therefore, if the guide portion of the saw blade housing 3 is provided below the upper surface of the roller 31 of the transport table 33, that is, below the reference surface Y which is the lower surface of the work material W, inconvenience occurs in both maintenance and chip processing. .

However, in the present embodiment, the guide 21
Is provided, and the entire saw blade housing 3 is suspended.
Below the reference plane Y, there is no major function other than the lower saw blade guide 13 and the lower driven wheel 7. Therefore, it is possible to obtain good chip discharge performance and easy maintenance of the guide portion 21 of the saw blade housing 3.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, in this embodiment, the band saw blade 9 is cut by a 90-degree twist between the upper saw blade guide 11 and the lower saw blade guide 13, but as shown in FIG. 3, the value of the twist is 90 degrees or less. It is also possible to cut it.

The configuration of the invention of this embodiment is summarized as follows.

That is, while the endless band saw blade 9 provided on the vertical saw blade housing 3 is driven to travel, the saw blade housing 3 is cut in the cutting direction (the front direction toward the paper in FIG. 1, the direction in FIG. 2). To the right) at
In a vertical band sawing machine 1 for cutting a workpiece W, a frame 17 extending in the cutting direction is erected, and the saw blade housing 3 is suspended from an upper frame 19 of the frame 17. The guide portion 21 is provided so as to be movably supported in the cutting direction, and the guide portion 21 is configured to be located at a position considerably higher than the support height position of the transfer table 33 that supports the work material W. Below the saw blade housing 3 in the lower frame 43 of the frame 17, there are provided a chip conveyor 45 for carrying out processing of chips and a machining liquid tank 47 for collecting a machining fluid. Protective covers 49 for preventing scattering of powder and cutting fluid are provided, and as shown in FIG.
Each protective cover when the cutting fluid is prevented from scattering
The upper end side of 49 is configured to be located at a height position close to the support height position of the transfer table 33, and a plurality of protective covers 49
Are openable and closable.

The operation of the present embodiment is summarized as follows.

In other words, the workpiece W can be cut by moving the saw blade housing 3 in the cutting direction while the endless band sawing machine 9 is driven to travel. The cutting fluid used at the time of cutting is collected by a cutting fluid tank 47, and the chips generated at the time of cutting are collected by a chip conveyor 45.

Here, the guide portion 21 that supports the saw blade housing 3 movably in the cutting direction is configured to be located at a height position that is considerably higher than the support height position of the transfer table 33. The guide portion 21 does not hinder the chip removal processing and the collection of the cutting fluid, and neither the chip nor the cutting fluid adheres to the guide portion 21. Furthermore, the protective cover 49 can prevent chips and cutting fluid from scattering. In particular, each protective cover 49 is configured such that the upper end side of each protective cover 49 is located at a height position close to the support height position of the transfer table 33 when the cutting chips and the cutting fluid are prevented from being scattered. Therefore, scattering of cutting chips and cutting fluid can be more reliably prevented.

As described above, according to the invention of this embodiment, the guide portion 21 that supports the saw blade housing 3 movably in the cutting direction, as in the related art, hinders the processing of chip discharge and the collection of cutting fluid. Therefore, there is an effect of improving work efficiency. Further, since chips and cutting fluid do not adhere to the guide portion 21, maintenance of the guide portion 21 can be improved.

Furthermore, since the plurality of protective covers 49 can prevent chips and cutting fluid from being scattered, the working environment can be improved. Particularly, when each protective cover 49 is in a state where chips and cutting fluid are prevented from being scattered, the upper end side of each protective cover 49 is located at a height position close to the support height position of the transfer table 33. Therefore, the above effect is further improved.

Further, since the plurality of protective covers 49 can be opened and closed, maintenance of the chip conveyor 45 and the cutting fluid tank 47 is facilitated.

[Effects of the Invention] As described above, according to the present invention, the guide portion that supports the saw blade housing movably in the cutting direction is configured to be located at a position considerably higher than the support height position of the transfer table. Therefore, unlike the related art, the guide portion does not hinder the chip carry-out process and the collection of the cutting fluid, and thus has an effect of improving work efficiency. Further, since chips and cutting fluid do not adhere to the guide portion, maintenance of the guide portion is improved.

Further, since the plurality of protective covers can prevent the swarf and the cutting fluid from being scattered, the working environment can be improved. In particular, when each protective cover is in a state where chips and cutting fluid are prevented from being scattered, the upper end side of each protective cover is configured to be located at a height position close to the support height position of the transfer table. The above effect is further improved.

Further, since at least one of the plurality of protective covers can be opened and closed, maintenance of the chip conveyor and the cutting fluid tank is facilitated.

[Brief description of the drawings]

1 and 2 show a main part of the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a plan view in FIG. FIG. 1 Vertical band saw machine 3 Saw blade housing 17 Frame 19 Upper frame 21 Guide section 33 Transfer table

Claims (1)

(57) [Claims] 1. A cutting process is performed on a work material by moving a saw blade housing in a cutting direction under a state in which it is driven to travel by an endless band saw blade provided in a vertical saw blade housing. In the vertical band sawing machine to be performed, a frame extending in the cutting direction is erected, and a guide portion for movably supporting the saw blade housing in the cutting direction is provided above the frame under a state where the saw blade housing is suspended. This guide portion is configured to be located at a height position considerably higher than the support height position of the transfer table that supports the work material, and the chip is discharged to the lower portion of the frame below the saw blade housing. A chip conveyor and a cutting fluid tank for collecting cutting fluid are provided, and a protective cover is provided on both sides of the lower part of the frame to prevent chips and cutting fluid from scattering. When the swarf and cutting fluid are prevented from being scattered, the upper end side of each protective cover is configured to be located at a height position close to the support height position of the transfer table. A vertical band saw machine characterized by comprising one protective cover which can be opened and closed.