JPH0215913A - Automatic replacement of band saw blade and band sawing machine with automatic saw blade replacement device - Google Patents

Abstract

PURPOSE:To facilitate automatic replacement of band saw blade which is mounted on a saw blade housing, within a short period by providing an automatic saw blade replacement device which is able to spread a folded band saw blade or to fold a speareded band saw blade and is able to be moved. CONSTITUTION:A desired saw blade case 83 is selected with an automatic saw blade replacement device 87 from a plurality of saw blade cases 83 which are kept on a saw blade housing rack 85, a folded band saw blade 11 is taken out as it is by the device 87 and the band saw blade 11 being folded is speareded. Then the device 87 is moved to a saw blade housing 13 and the band saw blade 11 is mounted in a saw blade housing 13 from the device 87. The band saw blade 11 is taken out from a saw blade housing 13 and delivered to the device 87. The device 87 which is holding the band saw blade 11 moves it to the saw blade housing rack 85. The band saw blade 11 being spread is folded by the device 87 and put in a saw blade case 83 having vacancy on the saw blade housing rack 85 with the device 87 and finally housed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Industrial Application Field) The present invention relates to a band saw blade automatic changing method and a band saw machine equipped with an automatic saw blade changing device.

(Prior Art) Conventionally, in a band saw machine, a band saw blade for cutting a workpiece is attached to a saw blade housing.

That is, the band saw blade is wound around a drive wheel and a driven wheel provided in the saw blade housing.

The band saw blade is wound around the drive wheel and driven wheel manually by an operator.

(Problem to be Solved by the Invention) By the way, since the means for attaching the saw blade to the conventional saw blade housing described above is done manually by an operator,
The installation operation is very troublesome and requires time and effort.

Furthermore, if the band saw blade becomes worn, has a chipped tooth, is bent, etc., the band saw machine must be stopped and the band saw blade must be replaced manually by an operator, so there is a problem in that it takes a long time to replace the band saw blade.

On the other hand, the idea of automatic replacement of unstable saw blades like band saw blades had been considered in the past, but the concrete configuration was difficult and it was not possible to break through common sense.

The purpose of the present invention is to provide an automatic band saw blade replacement method and a band saw blade automatic replacement device that allow the band saw blade attached to the saw blade housing of the band 15J to be replaced automatically, easily, and in a short time. The goal is to provide the disc.

[Configuration of the Invention (Means for Solving Problem 11) In order to achieve the above object, the present invention provides a saw blade storage in which a plurality of saw blade cases storing band saw blades in a folded state are stored. The band saw blade in the saw blade case selected from the shelf is transferred to the saw blade housing, and the band saw blade attached to the saw blade housing of the band saw machine is transferred to the saw blade case in the saw blade storage shelf.The band saw blade is folded using the saw blade automatic exchange device. This is an automatic band saw blade changing method that automatically changes from a folded state to an unfolded state, or from an unfolded state to a folded state.

The present invention also provides a saw blade case that stores band saw blades in a folded state, a saw blade storage shelf that stores a plurality of sets of the saw blade cases, and a band saw for driving and traveling the band saw blade to cut a workpiece. removing the band saw blade from the saw blade housing or saw blade case between the saw blade housing and the selected saw blade case of the saw blade storage shelf;
A saw comprising: an automatic saw blade changing device that can move the bandsaw blade from a folded state to an unfolded state or from an unfolded state to a folded state when attached to a saw blade case or a saw blade housing; A band saw machine equipped with an automatic blade changing device was constructed.

(Operation) By employing this invention, a desired saw blade case is selected from a plurality of sets of saw blade cases stored in the saw blade storage shelf. The folded band saw blade is taken out from the selected saw blade case using an automatic saw blade exchanger, and
Unfold the band saw blade from its folded state. Then, the automatic saw blade changing device is moved to the saw blade housing, and the band saw blade is installed from the automatic saw blade changing device to the saw blade housing.

Further, the band saw blade is removed from the saw blade housing and the receiver is transferred to an automatic saw blade changing device. The automatic saw blade exchange device holds the band saw blade and moves it to the saw blade storage shelf. The automatic saw blade changing device changes the band saw blade from the unfolded state to the folded state.
A band saw blade is attached to an empty saw blade case on a saw blade storage shelf from an automatic saw blade exchanger and stored.

In this way, the band saw blade can be automatically and simply replaced between the saw blade case and the saw blade housing of the storage shelf by the automatic saw blade changing device, and in a short time.

(Example) Hereinafter, the present invention will be explained in detail based on the drawings.

Referring to FIGS. 1 and 2, a horizontal band rM machine 1 as a band saw machine equipped with an automatic saw blade changing device according to the present embodiment
Roughly speaking, it is equipped with a work table 3 on a base 5 on which an extremely large material (work) W such as an ingot is placed, and on the base 5,
A vice device 7 for gripping and fixing the workpiece W is provided.

Roughly speaking, a guide column 9 is provided upright on the base 5, and a saw blade housing 13 supporting a band saw blade 11 for cutting the workpiece W is supported on the guide column 9 so as to be vertically movable. ing.

In the above configuration, after placing the workpiece W on the worktable 3 and gripping and fixing the workpiece W by the vise device 7, the band saw blade 11 is held with its tooth tip oriented vertically downward, and the band saw blade 11 is held vertically downward. By lowering the blade housing 13? The workpiece W can be cut in the vertical direction by the I saw blade 11.

The base 5 is formed by suitably combining H-shaped steel, channel steel, etc. into a rectangular shape, and left and right sub-bases 1 are provided on the left and right sides of the upper surface of the base 5, respectively.
5R and 15L are further integrally superposed.

Guide rails 17R, 171- parallel to each other and extending in the front-rear direction (direction perpendicular to the plane of the paper in FIG. 1) are laid on the base 5, and the guide rails 17R, 171- as shown in the figure are guided by the guide rails 17R, 17L. The work table 3 is moved in the front-rear direction (in the direction perpendicular to the plane of the paper in FIG. 1) by the omitted drive device.

Although a detailed explanation will be omitted, the movement position of the work table 3 in the front-rear direction can be easily detected by using an appropriate position detection device, for example, an appropriate linear scale such as a linear inductor. ,Also,
For example, the work table 3 can be accurately moved and positioned in the front-rear direction by feedback control or the like.

The vice device 7 for gripping and fixing the workpiece W consists of a reference side vice 19 and a pressing side vice 21 mounted on the base 5, and the reference side vice 19 and the pressing side vice 21 They are provided facing each other with a table 3 in between.

The reference side vise 19 is fixed on the base 5, and the pressing side vise 21 is movable in the left and right directions in FIG. 1 depending on the size of the workpiece W.

As shown in FIG. 1, the saw blade housing 13 includes left and right wheel housings 25R and 25m on both left and right sides of a beam member 23 extending in the left-right direction. As can be understood from FIG. 2, the left and right wheel housings 25R and 25L are formed into hollow box shapes.

Inside the right wheel housing 25R is the drive wheel 2.
7 is internally rotatably mounted via a shaft 29. As shown in FIG.
It is attached through.

A driven wheel 35 is rotatably housed inside the left wheel housing 25L via a shaft 37. This shaft 37 is a slide block 39 that is movable left and right.
is supported by. This slide block 39 is slidably supported in the left-right direction by a left-right guide block 41 attached to the left wheel housing 25L. In order to make this guide block 41 slide, a tension cylinder 4 is installed in the guide block 41.
3 is attached to the tension cylinder 43, and the tip of a piston rod provided in the tension cylinder 43 so as to be able to reciprocate in the left-right direction is connected to the slide block 39.

With the above configuration, after the endless band saw blade 11 is wound around the drive wheel 27 and the driven wheel 35, the tension cylinder 43 causes the driven wheel 35 to
By pulling to the left in FIG. 1, the band saw blade 11
Appropriate tension can be applied to.

It is desirable that the force by which the tension cylinder 43 pulls the driven wheel 35 is always applied by an elastic body such as a disc spring. When the drive motor 31 is driven, the shaft 29 is rotated via the reduction gear 33, and the drive wheel 27 is further rotated. Since the band saw blade 11 is wound around the drive wheel 27 and the driven wheel 35, the band saw blade 11 is driven to travel.

Covers are provided on the front surfaces of the left and right wheel housings 25R and 25L, and the right wheel housing 2
The cover installed on 5R is 45A.

It is divided into 458.45G and 45D. In addition, the cover provided on the left wheel housing 25L is 47A.
, 47B, 47G, and 47D.

Among the above covers, split cover 45A, 458°450
47A, 478, and 470 will interfere with each other when replacing the band saw blade 11, which will be described in detail later, so in order to avoid interference, they are rotated as shown in the arrows, as shown in Figure 1. There is. For example, as shown in FIG. 3, the split cover 45B is rotatably supported by a hinge pin 49 on the right wheel housing 25R.

There is a bracket 5 inside the right wheel housing 25R.
1, a hydraulic cylinder 53 is swingably attached to the hydraulic cylinder 53, and the tip of a piston rod 55 provided in the hydraulic cylinder 53 is attached to a bracket 57 provided inside the split cover 458.

With the above configuration, when the hydraulic cylinder 53 is operated,
As the piston rod 55 is extended, the split cover 458 rotates about the hinge bin 49 as a fulcrum, as shown by the two-dot chain line, and the split cover 458 is avoided without interfering with the band saw blade 11 when replacing it. Also, another divided cover 45A.

450:47A and 478.47D can be avoided in the same way as by rotating the divided cover 45B.

Further, as a means for rotating or moving these divided covers in a linear direction, a method using a rack and a pinion other than the above-mentioned structure may be used.

Drive wheels 27 mounted on left and right wheel housings 25R, 25L provided in the saw blade housing 13
The left and right wheel housings 25R and 25L are provided with an inner guide 59. An outer guide 61 is provided as shown in FIGS. 4 and 5. Among these plural guides 59. By providing the outer guide 61 on the left and right wheel housings 25R, 25L, the band saw blade 1
1 breaks, the band saw blade 11 is prevented from falling, and post-processing can be carried out easily and simply.

Referring to FIG. 1, the beam portion 4123 has saw blade guide members 63R and 63 for holding and guiding the band saw blade 11.
L is provided. More specifically, as shown in FIG. 6, saw blade guide members 63R, 63L extend downward through a guide member 65 to the beam member 23 on the dipping side of the left and right wheel housings 25R, 25L. installed. The saw blade guide members 63R and 63L are slidable relative to the guide member 65 in FIG. 6 in a direction perpendicular to the paper surface. Therefore, bandsaw blade 1
1 so as not to interfere with the band saw blade 11 when replacing the band saw blade 11.

Furthermore, drive wheel 27. The width of the flange of the driven wheel 35 is wider than usual so that the band saw blade 11 can be easily attached and detached.

The tip of the saw blade guide member 59R shown in FIG. 6 has a structure as shown in FIG. 7(A). That is,
In FIG. 7A, a movable saw blade holding guide 67 is rotatably supported by a pin 69 at the tip of the saw blade guide member 63R. A fluid cylinder 71 is attached to the saw blade guide member 63R, and the tip of a piston rod 73 attached to the fluid cylinder 71 is attached to the movable saw blade holding guide 6.
7 with a bin 75. Note that holding portions 63A and 67A are attached to the distal ends of the saw blade guide member 63R and the movable saw blade holding guide 67 in correspondence with each other.

In the above configuration, in a state where the band saw blade 11 is wound around the drive wheel 27 and the driven wheel 35, (
When the fluid cylinder 71 shown in A> is actuated, the piston rod 73 expands, resulting in (8) in FIG.
As shown in FIG. 2, the movable saw blade holding guide 67 rotates counterclockwise about the pin 69, and the band saw blade 11 is twisted, for example, at 90 degrees. Thus, the twisted band saw blade 11 is held by the holding part 63A of the saw blade guide member 63R and the holding part 67A of the movable saw blade holding guide 67.

The structure at the tip of the saw blade guide member 63L is almost the same as the structure at the tip of the saw blade guide member 63R, so a description thereof will be omitted.

Note that the structure at the tip of the saw blade guide members 63R, 63L is other than the structure described above, and the structure is similar to that of the holding portion 63A.
The holding portion 67A may rotate to hold the band saw blade 11.

Referring again to FIGS. 1 and 2, a control 179 for controlling the horizontal bandsaw machine 1 is provided at the right end of the base 5 via a guide post 77 erected. As shown in FIG. 2, a workpiece conveyor device 81 for conveying a workpiece W is arranged on the left side of the base 5.

Furthermore, a saw blade storage shelf 85 in which a plurality of sets of saw blade cases 83 storing the band saw blades 11 in a folded state is stored is arranged near the horizontal band saw machine 1, for example, on the left side in FIG. An automatic saw blade exchange device 87 is provided for exchanging the band saw blade 11 housed in the saw blade case 83 of this saw blade storage shelf 85 and the band saw blade 11 attached to the saw blade housing 13 of the horizontal band saw machine 1. It is provided between the blade storage shelf 85 and the horizontal bandsaw machine 1.

As shown in FIG. 1, the saw blade storage shelf 85 has, for example, a plurality of columns 89 erected thereon, and a horizontal support frame 91 is hung on the columns 89. . On this support frame 91, a plurality of saw blade cases 83 housing endless band saw blades 11 folded into, for example, a W shape are arranged in the left-right direction in FIG.

As shown in FIG. 8, there is a W inside the saw blade case 83.
The band saw blade 11 is housed in a folded state and is clamped by a plate spring or a clamp C+-Co attached to the saw blade case 83. therefore,
In FIG. 8, it can be taken out toward the front in the direction perpendicular to the page.

As shown in FIG. 1, the saw blade automatic exchange device 87 has columns 93R and 93L erected on both the left and right sides. Extended guide rails 95A and 95B are provided.

The pillars 93R and 93L are the 91i! As shown in i, it is movable in the front-rear direction (left-right direction in FIG. 9) by a drive motor (not shown).

As shown in FIG. 9, the guide rails 95A, 95B are provided with guide members 97A, 97B, and the guide portions 097A, 97B are provided with moving members 99A, 99B.
A saw blade replacement case 101 is integrally attached via.

A plate 103 is integrally attached to the guide members 97A and 978, and a fluid cylinder 105 is attached approximately to the center of this plate 103. Piston rod 107 attached to this fluid cylinder 105
The tip of the saw blade is attached to the saw blade replacement case 101.

With the above configuration, the saw blade replacement case 101 is moved to the guide rail 95A by a drive motor (not shown).

95B and is moved in the left-right direction in FIG. Further, when the saw blade replacement case 101 operates the fluid cylinder 105, the piston rod 107
is extended and moved to the right in FIG. 9 via the moving members 99A, 99B with respect to the guide members 97A, 97B.

As shown in FIG. 10(A), the band saw blade 11 is accommodated in the saw blade replacement case 101 in an extended state, and is clamped by a plurality of saw blade clamps T1 to T8. Ru.

The saw blade clamps T1 to T11 are arranged at appropriate positions, for example, as shown in FIG. 10(A). Furthermore, when the saw blade clamps 1 to 8 are moved as shown by the arrows in FIG.
is an elastic body, so it moves like a parallel link and the first
It is folded into a W shape as shown in Figure 0 (B).

Saw blade clamp - "2 moving device is, for example, Fig. 11 (A)
As shown in # and (B), a rack 103 extending in the left-right direction is provided on the saw blade replacement case 101, and a guide member 107 having a pinion gear 105 meshed with this rack 103 is provided. This guide member 107
Another guide member 109 is provided extending in the vertical direction, and a clamp arm 113 is provided to this guide member 109 via a support member 111.

A saw blade clamp T2 is attached to the tip of this clamp arm 113.
is provided, and a fluid cylinder 115 provided within the clamp arm 113 allows the saw blade clamp 2 to be clamped and unclamped.

With the above configuration, when the fluid cylinder 115 is actuated to clamp the band saw blade 11 with the saw blade clamp T2, and the pinion gear 105 is rotated by the drive motor (not shown), the pinion gear 105 is meshed with the rack 103. Pinion gear 105 moves to the left in FIG. 11(A). As a result, the band saw blade 11 clamped by the saw blade clamp T2 is moved as shown by the arrow in FIG. 10(A).

The moving devices for the saw blade clamps T* and T3 to T8 are almost the same as the moving device for the saw blade clamp T2, so a detailed explanation will be omitted.

Next, the saw blade case 83 stored in the saw blade storage shelf 85
The operation of storing and taking out the band saw blade 11 will be explained.

First, as shown in FIG. 10(A), the band saw blade 11 is housed in the saw blade replacement case 101, and the band saw blade 11 is clamped by each of the saw blade clamps T1 to To. band saw blade 11
When the saw blade clamps T1 to T8 are moved in the direction of the arrow shown in Fig. 10 (A), the band saw blade is clamped with the saw blade clamps T1 to T8, as shown in Fig. 10 (B). 11 is in a folded state.

In this state, the saw blade replacement case 101 is moved in the left and right direction in FIG. After positioning, the saw blade replacement case 101 is stopped. (Status shown in Figure 9) Move the columns 93R and 93L to the right in Figure 9,
When the saw blade replacement case 101 is roughly moved to the right by the fluid cylinder 105, the band saw blade 11 is clamped by a plurality of clamps C1 to C8 attached to the saw blade case 83, and the saw blade clamps ]-1 to Unclamp T8. By returning the saw blade replacement case 101 to its original state, the band saw blade 11 can be transferred from the saw blade replacement case 101 to the saw blade case 8.
3, the uke is handed over and stored.

In order to transfer the band saw blade 11 housed in the saw blade case 83 to the saw blade replacement case 11, the operation described above can be reversed, so a detailed explanation will be omitted.

Band saw blade 11 folded from selected saw blade case 83
Figure 10 (B)
From the state shown in , the saw blade housing 13 of the horizontal bandsaw machine 1
Explain the operation of attaching it to the

By moving each of the saw blade clamps T+ to T8 in the direction opposite to the arrow shown in FIG. 10(A) from the state shown in FIG. 10(B), the state shown in FIG. 10(A> is achieved). .

Next, each divided cover 45A of the left and right wheel housings 25R and 25m provided on the left and right sides of the saw blade housing 13
~45D: Automatically open 47A~47D. Further, the movable saw blade holding guide 67 provided at the tip of the saw blade guide member 63R263L is opened to the state shown in No. 71i4(A).

In such a state, move the saw blade replacement case 101 onto the guide rail 9.
5A and 95B to the right in FIG.
Position it so that it is located in front of 5R and 25L and stop it. (The state shown in FIG. 2) The supports 93R and 93L are moved to the right in FIG. It is placed in a state where it is hung around the driven wheel 35. By unclamping each of the saw blade clamps r+ to T8 in this state, the band saw blade 11 is separated from the saw blade replacement case 101 and wound around the drive wheel 27 and the driven wheel 35.

In this state, the band saw blade 11 is still slack, so the tension cylinder 43 is operated to apply tension to the band saw blade 11, and the driving wheel 27 and the driven wheel 35 are tensioned.

Next, by operating the fluid cylinder 71 to bring the movable saw blade holding guide 67 into the state shown in FIG. 7(A) to FIG. The band saw blade 11 is attached to the saw blade housing 13 from the blade replacement case 101, and the saw blade replacement case 10
1 is returned to its original position.

Further, the operation of taking out the band saw blade 11 from the saw blade housing 13 to the saw blade replacement case 101 can be performed by performing the reverse operation of the above-mentioned operation, so a detailed explanation will be omitted.

In this way, the band saw blade 1 is stored in the plurality of saw blade cases 83 stored in the saw blade storage shelf 85 and is in a folded state.
1 and the band saw blade 11 attached to the saw blade housing 13
The saw blade automatic exchange device 87 can automatically and easily exchange the saw blades in a short time.

Note that the present invention is not limited to the embodiments described above, but can be implemented in other embodiments by making appropriate changes. For example, in this embodiment, a horizontal type horizontal band saw machine 1 has been described, but a hinge type horizontal band saw machine or a vertical band saw machine can also be used. Furthermore, although the band saw blade 11 is twisted at 90 degrees using the saw blade guide members 63R and 63L, any twist angle such as 45 degrees or 60 degrees is also possible.

The saw blade storage shelf 85 is provided near the horizontal bandsaw machine 1, and an example is shown in which a plurality of saw blade cases 83 are arranged in the left and right direction.
A plurality of saw blade cases 83 may be provided in the vertical direction, or even in the vertical and horizontal directions.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, the folded band saw blades and The band saw blade attached to the saw blade housing can be automatically replaced easily and easily in a short time by the automatic saw blade changing device.

[Brief explanation of the drawing]

FIG. 1 is a front view of a horizontal bandsaw machine equipped with an automatic saw blade changing device according to the present invention, and FIG. 2 is a side view of FIG. 1. Fig. 3 is a sectional view of an example of an opening/closing device that automatically opens and closes a split cover attached to a wheel housing, Fig. 4 is an explanatory view showing a guide attached around a band saw blade that is wound around a driving wheel and a driven wheel; Figure 5 shows v- in Figure 4.
6 is an explanatory diagram showing the installation state of the saw blade guide member, and FIG. 7 (A) is a cross-sectional view taken along the V line.
7(B) is an explanatory diagram of the operation of FIG. 7(A), FIG. 8 is a state diagram of the bandsaw blade housed in the saw blade case, and FIG. 9 is an illustration of the state shown in FIG. 1. A cross-sectional view taken along line IX-IX, Figure 10 (A) is a diagram of the band saw blade stored in the saw blade exchange case, and Figure 10 (B) is a diagram of the band saw blade folded inside the saw blade exchange case. Fig. 11 (A> is a front view of the saw blade clamp moving device, and Fig. 11 (B) is a side view of Fig. 11 (A). 1...Horizontal band saw machine 11...・Band saw blade 13...Saw blade housing 83...Saw blade case 85...Saw blade storage shelf 87...Saw blade automatic exchange device 101...Saw blade exchange case No. 3r:lI -1■ No. Figure 4 Figure 5 Figure 6 (!! Figure 9 Figure 7 (A) Figure 7!!f (B) Figure 8 Figure 101!I (A) Figure 101!I (B) Figure 11! (A) Figure 11 (B) Procedural Neighborhood Official Book (spontaneous) September Δ, 1986

Claims (2)

[Claims] (1) The band saw blade of the saw blade case selected from the saw blade storage shelf that stores multiple sets of saw blade cases containing folded band saw blades is transferred to the saw blade housing and transferred to the saw blade housing of the band saw machine. Automatically change the band saw blade from a folded state to an unfolded state, or from an unfolded state to a folded state, using an automatic saw blade exchange device to place the attached band saw blade in the saw blade case of the saw blade storage shelf. An automatic band saw blade replacement method characterized by: (2) A saw blade case that stores band saw blades in a folded state, a saw blade storage shelf that stores multiple sets of these saw blade cases, and a band saw blade that is installed to drive the band saw blade and cut the workpiece. The band saw blade is removed from the saw blade housing or the saw blade case between the saw blade housing and the selected saw blade case of the saw blade storage shelf, and is attached to the saw blade case or the saw blade housing. an automatic saw blade changing device that is capable of moving a band saw blade from a folded state to an unfolded state or from an unfolded state to a folded state. Equipped with a bandsaw machine.