JP3394326B2 - Method and apparatus for removing chips from sawing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for removing chips from a saw machine, and more particularly, in a saw machine such as a horizontal band saw machine, a vertical band saw machine, and a circular saw machine. TECHNICAL FIELD The present invention relates to a chip removing method and a chip removing device for a saw blade, which removes chips attached when a work is cut by a saw blade.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for removing chips adhering to a saw blade in a saw machine such as a band saw machine and a circular saw machine, for example, JP-A-5-104327 and JP-A-4-46711 are disclosed. The structure described in, etc. is known.

That is, the structure disclosed in the former publication is designed to maintain an appropriate amount of overlap between a saw blade and a cleaning tool such as a brush for removing chips adhering to the saw blade. The powder is being removed.

In the structure described in the latter publication, the rotatable brush provided on the brush support member is
The force of the spring presses against the stopper member, and the amount of overlap between the saw blade and the brush is automatically adjusted.

[0005]

By the way, in the above-mentioned conventional chip removing device for a saw, since the brush is constantly pressed against the stopper member by the urging force of the spring,
There is a problem that it is unstable and may vibrate due to some force such as eccentricity of the brush and change of reaction force from the saw blade.

Further, since the brush is constantly pressed against the stopper member, an extra torque of the motor for rotating the brush is required.

An object of the present invention is to provide a chip removing method and a chip removing apparatus for a saw, which are intended to reduce the number of parts, reduce the cost, prevent the vibration of the brush, and reduce the abrasion of the brush. Especially.

[0008]

The present invention has been made in view of the above problems, and the invention according to claim 1 is a method for removing chips adhering to a saw blade in a saw machine.
On the supporting member provided on the saw blade frame supporting the saw blade ,
A brush support provided with a brush is rotatably provided, and the rotatable brush provided on the brush support is pressed against the position regulating means, and then the brush is pressed from the pressing position of the brush to prevent wear of the brush, When slightly returning to the optimum position by the returning cylinder provided on the brush support , the support
Freely provided adjusted with rotatably fixed to the support member arm
In this method, the brush support is brought into contact with the screw member to adjust the returning amount of the brush, and the chip removing method of the saw machine.

According to a second aspect of the present invention, there is provided a chip removing device for removing chips attached to a saw blade of a saw machine, and a brush supporting body rotatably supporting a brush pressing a position regulating means is supported. A lock device that is rotatably provided on the saw blade frame via a member and that fixes an arm that is rotatably supported by the support member is provided on the support member, and the brush support body contacts the position regulation means. to return a small amount to the optimum position from a position in contact, the brush support body return adjusting device comprising a piston rod for pressing the fixed the arm, is made by providing on the brush support.

The invention according to claim 3 is the invention according to claim 2.
In the above description, the arm is provided with a screw member for adjusting the amount of return by the brush support return adjusting device.

The invention according to claim 4 is the invention according to claim 2.
In the light, as the position regulating means, a saw blade wheel,
A saw blade or a stopper member is used.

The invention according to claim 5 is the invention according to claim 2.
In the above description, a fluid pressure circuit to a hydraulic cylinder for operating the lock device and the brush support return adjusting device is provided branching from the fluid pressure circuit of the saw blade insert cylinder, and the brush support return adjusting device is provided. A flow rate adjusting valve is provided in the fluid pressure circuit to the cylinder that activates.

[0013]

By using the above-described method and apparatus for removing chips from a saw machine, the brush provided on the brush support is brought into contact with the saw blade wheel, the saw blade or the stopper member which is the position regulating means. A screw member provided on the arm attached to the support member is adjusted to appropriately set the return amount, and the brush is returned from the position restricting means by the operation of the brush support return adjusting device. Therefore, the consumption of the brush can be prevented.

[0014]

Embodiments of the present invention will be described in detail below with reference to the drawings. First, in order to facilitate understanding, the overall configuration of the saw machine will be briefly described.

As a general construction of the saw machine, a vertical band saw machine is illustrated and described in the present embodiment, but the present invention is not limited to the vertical band saw machine, and it goes without saying that a horizontal band saw machine is used. The present invention can also be easily applied to a circular saw machine using a circular saw blade, a saw, and the like.

Referring to FIG. 5, the band saw 1 is based on a box-shaped base 3, and the base 3 has a protruding frame 5 protruding rightward (rightward in FIG. 5) and a forward direction (rightward). In FIG. 5, a support plate 6 is integrally provided so as to project in the front direction toward the paper surface. A guide rail extending in the left-right direction is provided on the front side of the protruding frame 5, and the guide rail is provided with a material to be cut (a round bar-shaped material to be cut in the present embodiment) W at the cutting position in the material feeding area A ₁ . On the other hand, a vertical cutting head 9 for cutting is provided so as to be movable in the left-right direction.

The cutting head 9 can be moved in the left-right direction by moving the self-propelled motor 11 forward and backward with respect to the material feeding area A ₁ . The cutting head 9 includes an endless band saw blade 13 and the band saw blade 13.
It is provided with a rotatable drive wheel 15 that hangs around the driven wheel, a driven wheel 17, and a wheel drive motor 19 that rotationally drives the drive wheel 15. The base 3 is appropriately configured so as not to interfere with the cutting head 9, and the band saw blade 13 is located at the cutting position when the cutting head 9 enters the material feeding area A ₁ .

A rear material feeding table 21 for movably supporting the material to be cut W in the front-rear direction at the height position of the pass line is provided at the rear portion of the base 3 (the inner portion orthogonal to the paper surface in FIG. 5). The rear material feeding table 21 is integrally provided so as to be positioned in the transport area A ₁ .
The rear material feeding table 21 includes a plurality of support rollers 23 that are rotatable in the front-rear direction. At the front part of the base 5 (front part orthogonal to the paper surface in FIG. 5), there is paired a front material feeding table for movably supporting the material W to be cut in the front-rear direction at the height position of the pass line. It is provided.

A front material feeding vise device 27, which holds the material W to be cut from the horizontal direction in front of the cutting position when viewed from the material feeding direction, is provided so as to be movable in the front-rear direction, and is located rearward of the cutting position. A rear material feeding vise device 29 for holding the cutting material W from the horizontal direction is provided so as to be movable in the front-rear direction.

A pair of vise guides 31 for slidably supporting the front feeding vise device 27 and the rear feeding vise device 29 in the front-rear direction are integrally provided on the left side of the base 3. The pair of vise guides 31 are configured to be located in an area A ₂ which is horizontally deviated from the material feeding area A ₁ .

With the above structure, in order to perform the feeding positioning of the material W to be cut, the rear material feeding vise device 29 feeds the material W to be cut, and then the front material feeding vise device is brought close to the cutting position in advance. The material W to be cut is held by 27, and the holding state of the rear material feeding vise device 29 is released. Although the front material feeding vise device 27 holding the material W to be cut is not shown in the drawing, it is moved forward by the operation of the hydraulic cylinder for moving the front vise to move it away from the cutting position to move the material W back and forth. It is possible to carry out material feeding positioning at a predetermined position in the direction.

After positioning the material W to be cut, under the condition that the band saw blade 13 is driven by the drive motor 19 for wheels, the cutting head 9 is moved leftward by the drive of the self-propelled motor 11. . As a result, the cutting head 9 can perform a desired cutting process on the material W to be cut at the cutting position in the material feeding area A ₁ , and the part WA corresponding to the product can be cut and separated from the material W to be cut. .

Next, the chip removing device 63 in the band saw machine 1 which is the main part of the present invention will be described in detail.

With reference to FIGS. 1, 2 and 3, a chip removing device 63 is provided with a bracket 67 on a saw blade frame 65 which is one member constituting the cutting head 9, and the bracket 67 is provided on the bracket 67. A pin 69 is attached so as to be rotatable by a slight amount. One end of this pin 69 (right side in FIG. 1)
As a lock device 71 provided on the bracket 67, for example, a piston rod 75 of a fluid pressure operated lock cylinder 73 can freely come into and out of contact with the piston rod 75 by a built-in piston return spring 77. It is biased so as to be separated from the end surface of the pin 69.

The pin 69 has a bifurcated support portion 79.
Is rotatably mounted, and the support portion 79 is integrally provided with a brush support body 83 that rotatably supports a wire brush 81. Further, on the upper surface of the support portion 79, a fluid pressure operated return cylinder 87 which is a member constituting the brush support return adjusting device 85 is provided.

On the other hand, an arm 91 fixed by a spring pin 89 to a pin 69 mounted on the bracket 67.
Is provided, and the upper surface of the tip of the arm 91 can come into contact with and separate from the piston rod 93 provided on the return cylinder 87. The piston rod 93 is constantly urged to be separated from the upper surface of the arm 91 by an elastic force of a built-in return spring 95. Also, the arm 9
The spring 9 is provided between the back surface of the tip end of the No. 1 and the brush support 83.
7, the arm 91 is biased by the elastic force of the spring 97 so as to be separated from the brush support 83.

Further, a screw member 99, which is a member of the brush support return adjusting device 85, is screwed onto the arm 91, and the tip of the screw member 99 is brought into contact with the brush support 83. . Furthermore, on one side (left side in FIG. 1) of the arm 91, a surface that contacts the bracket 67 and a lock portion 101 are formed.

A pressing spring 103 is stretched between the brush support 83 and the saw blade frame 65, and the wire brush 81 is constantly urged toward the drive wheel 15 by the contracting force of the pressing spring 103. .

The rear end of the shaft 105 that supports the wire brush 81 rotatably supported by the brush support 83 is connected to the output shaft of the drive geared motor 107. Reference numeral 109 is a brush cover.

A lock cylinder 73 that locks the pressing position of the brush support 83, a return cylinder 87 that returns the brush support 83 by a certain amount from the locked state, and FIGS.
Although not shown in the figure, the cylinder for saw blade insert 1
As a fluid pressure operation for activating 11 and 11, for example, a hydraulic circuit device 113 for hydraulic operation is provided as shown in FIG.

In the hydraulic circuit device 113 shown in FIG. 4, the oil stored in the tank 115 is supplied to the three-way electromagnetic switching valve 119 by the hydraulic pump 117 through the flow path 121. A flow rate control valve 123 is provided in the middle of the flow path 121. Flow paths 125a to 125c are provided on the outlet side of the three-way electromagnetic switching valve 119.
The tip of 125c is the cylinder 111 for the saw blade insert.
Rear oil chamber 127 and lock cylinder 73 rear oil chamber 1
29 and a rear oil chamber 131 of the return cylinder 87. A choke valve 133 is provided in the middle of the flow path 125c flowing into the rear oil chamber 131 of the return cylinder 87. The cylinder 11 for the saw blade insert
A return spring 135 is built in the device 1.

With the above-described structure, the operation is as follows. First, when the three-way electromagnetic switching valve 119 is operated and the valve is turned off, the return spring 135 built in the saw blade insert cylinder 111 returns the spring. The insert is opened. Further, due to the elastic force of the piston return spring 77 built into the lock cylinder 73, the piston rod 7
5 is returned and the lock is released. Furthermore, the return cylinder 8
The piston rod 93 is returned by the elastic force of the return spring 95 built in 7.

In this state, the wire brush 81 is pressed against the drive wheel 15 by the contracting force of the pressing spring 103 provided between the brush support 83 and the saw blade frame 65. Further, the arm 97 is pressed by the spring 97 toward the piston rod 93 provided on the return cylinder 87.

After a sufficient time (for example, about 5 seconds) has passed from the above state, the saw blade insert cylinder 111
When the three-way solenoid operated directional control valve 119 is operated to turn it on to close the valve, the pressure oil flows through the flow passage 125a into the rear oil chamber 127 of the saw blade insert cylinder 111 to close the saw blade insert. To do. Further, the pressure oil that has passed through the flow path 125b flows into the rear oil chamber 129 of the lock cylinder 73, the piston rod 75 provided in the lock cylinder 73 is pushed out, and the pin 69 is pressed. When the pin 69 is pressed,
The arm 91 provided integrally with the pin 69 is a bracket 67.
And is locked by the lock portion 101.

Further, the pressure oil that has passed through the flow path 125c passes through the choke valve 133, and the rear oil chamber 131 of the return cylinder 87.
The piston rod 93 provided in the return cylinder 87 is pushed out, and the tip of the piston rod 93 abuts the arm 91. However, since the arm 91 is locked to the bracket 67, the piston rod 93
Can't move any more. Therefore, the return cylinder 87 is
In the drawing of FIG. This rotation amount is until the brush support 83 contacts the screw member 99. Therefore, the return rotation amount is determined by adjusting the screw member 99 in and out. That is, the brush support 83 is provided on the arm 91 at the lock position , and the screw member 9 is provided.
The amount returned until it abuts 9 is determined by the adjustment of the screw member 99.

For example, if the amount of the wire brush 81 applied to the band saw blade 13 is small, the falling of chips is bad, and if the wire brush 81 is applied to the band saw blade 13 too much, the wire brush 8 is extremely damaged.
1 becomes short, the screw member 99 is appropriately adjusted and the return amount is set to the band saw blade 13 to the wire brush 81.
It is necessary to adjust to the optimum position as the amount of contact with.

The piston return spring 77 cooperates with the choke valve 133 in order to secure time for the lock cylinder 73 to reliably lock the arm 91.

Furthermore, the wire brush 81 is rotated via the shaft 105 by the drive of the drive gear motor 107, and when the position of the wire brush 81 is adjusted, the rotation of the wire brush 81 is stopped and the drive wheel 15 is driven.
The rotation is also stopped. The position adjustment of the wire brush 81 is performed every 30 minutes or 60 minutes when the cutting is completed and the band saw blade 13 is retracted, but there is no problem if it is performed for each cutting.

Further, the hydraulic circuit device 113 is
A hydraulic circuit for operating the lock cylinder 73 and the return cylinder 87 is provided using a hydraulic circuit for operating the saw blade insert cylinder 111. Therefore, a solenoid valve for actuating the lock cylinder 73 and the return cylinder 87, an electric output, etc. are not required, and it is not necessary to newly provide piping from the hydraulic unit. But,
Alternatively, a solenoid valve may be provided and operated.

In this embodiment, the stopper of the wire brush 81 is used as the drive wheel 15 as the position regulating means, but the saw blade itself or a new stopper may be provided.

With the above-described structure and operation, the number of parts of the constituent members can be reduced, which leads to cost reduction. By setting the wire brush 81 at the optimum position, the vibration of the wire brush 81 can be prevented and the wire brush 81 can be prevented. The wear of the brush 81 can be reduced.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0043]

As can be understood from the above description of the embodiments, according to the present invention, after pressing the rotatable brush provided on the brush support against the position regulating means, the brush is slightly moved from the fixed position of the brush. In order to restore the amount, the stroke is adjusted with a screw member which is a brush support return adjusting device, and the appropriate amount of the brush support is returned. A hydraulic circuit for operating the saw blade insert cylinder is used to operate each cylinder of the lock device and the brush support return adjusting device.

Thus, the number of parts can be reduced, the cost can be reduced, the vibration of the brush can be prevented, and the abrasion of the brush can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a chip removing device showing a main part of the present invention.

FIG. 2 is a side view of the II arrow part in FIG.

FIG. 3 is an enlarged cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a hydraulic circuit circuit diagram in the present invention.

FIG. 5 is a side view of a vertical band saw machine according to an embodiment of the present invention.

[Explanation of symbols]

1 Band saw machine (saw machine) 13 band saw blade (saw blade) 15 drive wheel 65 saw blade frame 67 Bracket (support member) 71 Lock device 73 Lock cylinder (cylinder) 81 wire brush 83 Brush support 85 Brush support return adjusting device 87 Return cylinder (cylinder) 91 arm 99 screw member Cylinder for 111 saw blade insert 125a-125c flow path (fluid pressure circuit) 133 Choke valve (flow rate adjustment valve)

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Claims (5)

(57) [Claims] [Claim 1] In a method of removing chips adhered to the saw blade in the sawing machine, set to a saw blade frame supporting said saw blade
The only support member, the self-rotation of the brush support body provided with a brush
Provided standing, after pressing the rotatable brush provided to the brush support position regulating means, the brush from the pressing position of the brush to prevent the depletion of the brush, the brush
An arm that is pivotally fixed to the support member when returning to the optimum position by a return cylinder provided on the support body.
Abuts the brush support on a screw member that is adjustable
And adjusting the amount of the brush returned, a method of removing chips from a saw. 2. A chip removing device for removing chips adhering to a saw blade in a saw blade, wherein a brush support rotatably supporting a brush pressing a position regulating means is provided with a saw blade via a supporting member. A lock device that is rotatably provided on the frame and that fixes an arm that is rotatably supported by the support member is provided on the support member, and the brush support body is at an optimum position from a position where the brush support body abuts on the position regulating means. A brush support return adjusting device equipped with a piston rod for pressing the fixed arm in order to return the brush support to the brush support body.
Sawing machine of the chip removing device characterized by comprising providing a. 3. The chip removing device for a saw machine according to claim 2, wherein the arm is provided with a screw member for adjusting a return amount by the brush support return adjusting device. 4. The chip removing device according to claim 2, wherein the position regulating means is a saw blade wheel, a saw blade or a stopper member. 5. A fluid pressure circuit to a fluid pressure operated cylinder for operating the lock device and the brush support return adjusting device is provided so as to be branched from the fluid pressure circuit of the saw blade insert cylinder. 3. The saw dust removing device according to claim 2, wherein a fluid pressure circuit to a cylinder for operating the adjusting device is provided with a flow rate adjusting valve.