JPH05154801A - Autotable - Google Patents

Abstract

PURPOSE:To provide the autotable which is automatically driven perfectly without human labor, while a work piece is held stably until work is completed. CONSTITUTION:The work table 61 provided with a clamp mechanism is placed on the transferring device 60 of railless type, and the work table 61 is constructed so that it may freely slide in work piece-feeding direction and in the direction perpendicular to the direction. While the work piece 5 is held by a clamp device and is pushed to a rule 3 by a pushing roller 70, it is fed to a band saw 2 by a propelling device 62 and is cut. When the saving of a lumber is finished, the pushing roller 70 is released, and the work piece 5 is separated from the surface of the saw by Y axis position-controlling devices 64, 63, and is restored to its original position by reversely driving the propelling device 62. After that the operation is repeated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic table for cutting a plate material out of a processed material such as a log or a double-faced log.

[0002]

2. Description of the Related Art An automatic table is a machine for cutting a plate material out of a work material with a band saw wound around a pair of saw wheels. There is a strong internal stress in wood, so each time the plate is cut, a large amount of bending and twisting occurs not only in the cut plate but also in the processed material. The plate material having a predetermined thickness cannot be obtained even if the material is firmly clamped and moved reciprocally toward the band saw and moved in the thickness direction for each stroke in the thickness direction. For this reason, conventionally, in this type of lumber mill, a ruler is provided in parallel to the workpiece cutting portion of the band saw, and the workpiece is pushed toward the workpiece cutting portion of the band saw while being pressed against the ruler. It was like this.

That is, a known auto table has a machine base and
A ruler wider than the band saw, provided between the pair of upper and lower saw wheels provided on the machine base and the work material cutting portion of the band saw wound around the saw wheel, and a ruler and a band saw. A stepping device that adjusts the distance to the work material cutting part and a device provided on the machine base that causes the work material to be cut by the band saw on the outward path and retracts the work material from the work material cutting part of the band saw on the return path. However, a processing material feeding device that reciprocally circulates the processing material in the longitudinal direction, a device that controls the position of the processing material so that the surface of the processing material that faces the reference surface of the ruler closely contacts the reference surface of the ruler, and A device that supplies the material to the processed material feeding device,
It is composed of a device that carries out the cut plate material, a device that drives the above-mentioned components, and a device that controls the operation thereof.

According to this structure, even if the surface of the work material is not a plane parallel to the work material cutting portion of the band saw, the plate material that is actually cut is sandwiched between the ruler and the work material cutting portion of the band saw. Since it is propelled toward the band saw in this state, it is cut into a constant plate thickness regardless of bending and twisting of the processed material. However, in this lumbering machine, it is difficult to clamp the work material, because the work material that is often bent or twisted is pressed against the ruler and is always moved in parallel to the reference surface of the ruler.

Therefore, there is no problem as long as the processed material is thick and stable, but when the cutting process progresses and the processed material becomes thin, it is necessary to prevent the processed material from tipping over at the end of the cutting and the return stroke. I had to attach it. This work is dangerous and requires workers to work for a long time in a work environment where the working environment is bad. Therefore, there is a problem that the recent social situation makes it impossible to satisfy manpower.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic table capable of unmanned and completely automatic operation.

[0007]

SUMMARY OF THE INVENTION The above object is to clamp a work material to perform reciprocal cutting, and to make the clamping device movable in a direction perpendicular to the work material feed direction in a horizontal plane. This is achieved by clamping the work material while allowing the work material to be brought into close contact with the reference surface of the ruler at the time of cutting. In one embodiment, a work table provided with a clamp mechanism is mounted on a track-free transfer device so that the work table can be freely slid in the XY plane, and a workpiece is held by a clamp device provided on the work table. The work is pressed against the ruler in a known manner, and the work table is configured to reciprocate toward the work cutting portion of the band saw.

In another embodiment, a trolley that travels on a predetermined track is provided with a clamp mechanism, and the clamp mechanism is movable in a direction perpendicular to the workpiece feed direction, so that the workpiece is always secured. The clamp surface should be clamped to and the cut surface should be in close contact with the reference surface of the ruler during cutting.

In still another embodiment, an X-axis direction slide table reciprocally moved in the X-axis direction along a guide rail provided on the machine base and a guide rail provided on the X-axis direction slide table. Along with a Y-axis direction slide table which can be reciprocally moved in the Y-axis direction, and a clamping mechanism for holding the work material is provided on the Y-axis direction slide table, whereby the work material is always reliably clamped and When cutting, make sure that the cut surface is in close contact with the reference surface of the ruler.

A control device for interlocking the stepping device and the drive device for the Y-axis direction slide table is provided.
It is also recommended to configure it so that it can be bent.

[0011]

[Operation] By doing so, the work table, the work table and
The relative posture of the trolley or slide table itself with respect to the band saw changes at any time, and when cutting, the work material is brought into close contact with the reference surface of the ruler, so that the work material is held stable and the plate material of the desired thickness is fully automatic. It is possible to cut out into.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view showing the structure of an auto table according to the present invention, FIG. 2 is a side view showing the structure of a part thereof, FIG. 3 is an explanatory view of the operation of the main parts thereof, and FIG. FIG. 5 is an explanatory view showing the constitution of a ruler, and FIG. 5 is a plan view showing the constitution of another embodiment of the automatic table according to the present invention. In the following description, the workpiece feeding direction for cutting will be described as the X-axis direction, and the direction perpendicular to the X-axis in the horizontal plane will be described as the Y-axis direction.

In the figure, 1 is a machine base, 2 is a band saw cutting material cutting part, 3 is a ruler, 4 is a stepping device for adjusting a distance between the ruler 3 and the band saw working material cutting part 2, Reference numeral 5 is a work material, 6 is a work material feeding device, 7 is a work material position control device, 8 is a work material supply device, and 9 is a plate material carry-out device. The band saw is wound around a pair of known upper and lower saw wheels (not shown) and circulated and rotated, and the processing material cutting section 2 cuts the processing material 5. The ruler 3 is provided for cutting out the plate material while pressing the processing material 5 to be cut against the reference surface. The distance between the ruler 3 and the workpiece cutting portion 2 of the band saw is adjusted by the stepping device 4, and the thickness of the plate to be cut is determined by this.

The work material feeding device 6 is provided on the machine base 1 and causes the work material 5 to be cut by a band saw on the outward path, and retreats the work material 5 from the work material cutting portion 2 of the band saw on the return path. This is a device for reciprocally circulating the material 5 in its longitudinal direction.

The machined material position control device 7 keeps the surface of the machined material 5 facing the reference surface of the ruler 3 in close contact with the reference surface of the ruler 3 at all times. The processing material supply device 8 and the plate material unloading device 9 are publicly known devices and are not related to the essence of the present invention, and therefore their explanations are omitted here.

In this embodiment, therefore, the work material feeding device 6 is a trackless type, and a large number of free rollers 601 and 6 are arranged so that their central axes are parallel to the Y axis.
01 arranged in a row, a work table 61 mounted on the roller conveyor 60 so as to freely slide, a work table propulsion device 62, and a work table Y-axis direction position control device. 6
3, 64 and a stopper 65.

The free rollers 601 and 601 are well-polished rollers, and are rotatably supported by a frame provided on the machine base 1 to form a roller conveyor 60, on which a work table 61 mounted. However, it is possible to slide lightly not only in the X-axis direction but also in the Y-axis direction. The work table 61 is composed of an extremely lightweight frame 610, and a long rack 611 is attached in the longitudinal direction of the frame 610, and a pair of push cups 612 and 6 for clamping a work material are attached to the side surfaces thereof.
13, a cylinder 614 for moving the push cup 612 on the movable side forward and backward, and anti-deflection rams 615, 615 for the processed material are provided.

On the other hand, the propulsion device 62 has a long pinion gear 621 and a brake motor 622 for rotationally driving the pinion gear 621, and the pinion gear 621 meshes with the rack 611 of the work table 61. Therefore, by rotating the brake motor 622 back and forth,
The work table 61 is driven to reciprocate in the X-axis direction. However, since the pinion gear 621 is configured to be sufficiently long in the Y-axis direction, even if the work table 61 moves in the Y-axis direction, the meshing with the rack 611 is not disengaged.

The workpiece 5 is held between a pair of push cups 612 and 613, and the position of the work table 61 in the Y-axis direction is controlled by the Y-axis direction position controller 63.
64 and the work material position control device 7. The Y-axis direction position control devices 63 and 64 respectively include the rack 611.
A pair of rollers 631, 632 and 641, 64 sandwiching
2 and its drive control devices 633 and 643. Thus, these rollers 631, 632 and 641, 642
Grips the rack 611 strongly and regulates the position of the work table 61 in the Y-axis direction during the current lumbering process. However, during lumbering, this gripping is released and the position of the work table 61 is controlled by the machining position control. It will be controlled by the device 7.

The work material position control device 7 includes a push roller 70.
When the plate material is actually being cut out, the pressing roller 70 strongly presses the processed material 5 against the ruler 3 via the work table 61. At this time, the side surfaces of the processed material 5 are pressed by the anti-deflection rams 615 and 615 so that the processed material 5 does not bend. Therefore, even when the work material 5 is strongly pressed against the ruler 3 via the work table 61 during lumbering, the work material 5
The plate having a predetermined thickness is cut out without bending.

When the cutting out of one plate is completed, the push roller 70 of the processing material position control device 7 retracts, and in stead, Y
Rollers 631 and 632 of axial position control devices 63 and 64
And 641 and 642 hold the side surface of the rack 611, and when the work material 5 is separated from the work material cutting portion 2 of the band saw, the brake motor 622 of the propulsion device 62 reverses and returns the work table 61 to the position shown in the figure. ..

In that case, the Y-axis direction position control device 63,
64 moves its rollers 631, 632 and 641, 642 by a predetermined distance in the direction of the workpiece cutting portion 2 of the band saw so that the new surface of the workpiece 5 contacts the reference surface of the ruler 3.
In this state, the brake motor 622 of the propulsion device 62 is normally rotated, the work table 61 is fed again in the X-axis direction, and when the workpiece 5 reaches the position where it comes in contact with the ruler 3, the Y-axis direction position control device 63 is provided. , 64 is released, and the position of the work table 61 is controlled by the work material position control device 7.

After that, the above-mentioned cycle is repeated to grind the plate, but in the device of the present invention, since the work material is firmly held by the clamp device composed of the pair of push cups 612 and 613, the lumber is processed. Progresses, processed material 5
Even if the thickness of the saw is reduced, the sawing can be completed without borrowing manpower until the last piece.

Next, the embodiment shown in FIG. 5 will be described. In FIG. 5, 1 is a machine stand, 2 is a band saw cutting material cutting part, 3 is a ruler, 4 is a stepping device, 5 is a working material, 6 is a working material feeding device, 60 y is a working material position control device, and 8 is A processing material supply device, 9 is a plate material unloading device. The work material feeding device 6 in this device is a guide rail 101 provided on the machine base 1,
Y along the X-axis direction slide table 6x, which is reciprocally moved along the X-axis direction along 101, and guide rails 61y, 61y provided on the X-axis direction slide table 6x.
A Y-axis direction slide table 6y that can be moved back and forth in the axial direction, and a pair of push cups 61 that are mounted on the Y-axis direction slide table 6y and hold both ends of the processed material 5.
The driving device 60y of the Y-axis direction slide table 6y also functions as a workpiece position control device.

That is, the rack 1 in which the pinion gear 61x, which is rotated by the brake motor 62x attached to the X-axis direction slide table 6x, is fixed on the machine base 1.
02, and the brake motor 62x is normally or reversely rotated to reciprocate the X-axis direction slide table 6x on the machine base 1 in the X-axis direction.

On the other hand, the Y-axis direction slide table 6y is reciprocally moved in the Y-axis direction by a drive unit 60y which also serves as a workpiece position control unit.
Is a motor holding frame 62y fixed on the X-axis direction slide table 6x, a pushing spring 63y, and a motor 64y.
And a feed screw 65y attached to the rotary shaft of the motor. The feed screw 62y is inserted and screwed into the female screw block 61y of the Y-axis direction slide table 6y to rotate the motor 63y in the forward or reverse direction. The axial slide table 6y is adapted to reciprocate in the Y-axis direction on the X-axis slide table 6x along the guide rails 61x and 61x. The motor 64y is biased upward by the pushing spring 63y in FIG. ,

The work material 5 is a slide table 6 in the Y-axis direction.
It is firmly held by a clamp device composed of a pair of push cups 612 and 613 driven by cylinders 612s and 613s provided on y.

During processing, the brake motor 62x is driven to feed the X-axis direction slide table 6x to the right in the figure, and the motor 64y is driven to feed the Y-axis direction slide table 6y to the top in the figure to produce a workpiece. 5 is brought to a position where it comes into contact with the surface of the ruler 3, and when it comes into contact with it, the motor 64y is further driven to press the Y-axis direction slide table 6y against the surface of the ruler 3, and the workpiece 5 is blocked by the ruler. It does not move further in the axial direction, the pushing spring 63Y is compressed, and the pushing force pushes the work material 5 against the reference surface of the ruler 3 with a predetermined pressure to bring it into close contact. In this state, the workpiece 5 is cut to a predetermined thickness by the cutting portion 2 of the band saw by continuously feeding the X-axis slide table 6x in the X-axis direction.

During the cutting process, the stepping device 4 is controlled to change the position of the ruler 3, and the motor 64 is interlocked with this.
By controlling the drive of y, it is possible to bend and grind the processed material 5 and various other grinding methods, to minimize the generation of mill ends and to grind out as many grain woods as possible. It becomes possible.

The configuration of the device of the present invention is not limited to the above embodiment. That is, the gist of the present invention is that when a workpiece is clamped and reciprocated, the clamp does not constrain the workpiece in the Y-axis direction, but only in the X-axis direction, and the workpiece is thin and thin. Since the lumber is carried out while holding it so as not to fall even if it becomes stable, the configuration of the present invention can be freely changed within the scope of this purpose, and the present invention includes all of them. Is.

As a modification of these, for example, as a device that reciprocates the above-mentioned processed material in the Y-axis direction and presses it against a ruler, a roller slightly inclined with respect to the X-axis on the upper surface of a known processed material is used. It is possible to use a device that is driven by pressing and rotating. Also in the above-described device, each central axis of the free roller is slightly tilted with respect to the X axis, and the device is operated as a workpiece position control device. Also, as the work material feeding device, various linear motion mechanisms such as a linear motor other than the rack and pinion can be used. Furthermore, the work table or the carriage is placed on a fixed track to reciprocate, It is also recommended that a part or a main part of the clamp device be configured to be able to move forward and backward easily in the Y-axis direction. In any case, for example, as shown in FIG. As described above, the ruler is provided with the gap detectors 30 and 30 between the workpiece and the work material such as an air micrometer, the inclination of the surface of the work material is detected by these, and, for example, the Y-axis direction position control devices 63 and 64. It is also possible to control the plate thickness by controlling the gap between the processed material and the ruler by controlling such a device.

[0032]

Since the present invention is constructed as described above, according to the present invention, it is possible to provide a new auto table capable of unmanned and completely automatic operation.

[Brief description of drawings]

FIG. 1 is a plan view showing the configuration of an embodiment of an auto table according to the present invention.

FIG. 2 is a side view showing the configuration of part of the auto table shown in FIG.

FIG. 3 is an explanatory diagram of an operation of a main part thereof.

FIG. 4 is an explanatory diagram showing a configuration of a ruler in another embodiment.

FIG. 5 is a plan view showing the configuration of another embodiment of the auto table according to the present invention.

[Explanation of symbols]

1 machine stand 2 cutting material cutting part of band saw 3 ruler 4 stepping device for adjusting the distance between the ruler 3 and cutting material cutting part 2 of band saw 5 processing material 6 processing material feeding device 7 processing material position control device 8 processing material supply Device 9 Plate material unloading device

Claims (8)

[Claims] 1. A machine stand (1), a pair of upper and lower saw wheels (not shown) provided on the machine stand (1), and a workpiece cutting section (2) for a band saw wound around the saw wheel. A ruler (3) wider than the band saw, provided with an adjustable gap therebetween, and a stepping device (4) for adjusting the distance between the ruler (3) and the workpiece cutting portion (2) of the band saw. And is provided on the machine base (1), causes the work material (5) to be cut by the band saw on the outward path, and retreats the work material (5) from the work material cutting portion (2) of the band saw on the return path. A work material feeding device (6) for reciprocating and circulating the work material (5) in the longitudinal direction, and a surface of the work material (5) facing the reference surface of the ruler (3) are brought into close contact with the reference surface of the ruler (3). Device (7) for controlling the position of workpiece (5)
A device (8) for feeding the work material to the work material feeding device (6), a device (9) for carrying out the cut plate material, a device for driving the above-mentioned components, and controlling their operations. An automatic table, which is composed of a machine and is used to grind a plate from a double-cut chamfered wood, when the machined material feed direction is the X axis and the direction perpendicular to it in the horizontal plane is the Y axis, the machined material feed device (6 ) Are arranged on the XY plane along the X-axis, and each of which has a central axis parallel to the Y-axis and a series of rollers (601, 601) rotatably supported around the respective central axes, A pair of devices (612, 613) capable of respectively holding both ends of the processed material (5) are provided, and the series of rollers (60).
1, 601), a work table (61) mounted slidably in two XY biaxial directions, a propulsion device (62) for reciprocating the work table (61) in the X axis direction, and a work table ( 61) is opened and the workpiece (5) is ruled (3) by the action of the workpiece position controller (7).
And a device (63, 64) for restraining the position of the work table (61) in the Y-axis direction so that the work material position control device (7) does not come into contact with the band saw on the return path. The auto table described above, characterized by comprising: 2. A work material position control device (7) faces a ruler (3) through a work table (61),
When the work material (5) is being cut, the push roller (70) provided so as to move back and forth toward the work table (61) is pressed against the work table (61), A push roller control device for bringing the work material (5) held between the push cups (612, 613) into contact with the ruler (3) and, if otherwise, pulling the push roller (70) away from the work table (61). The automatic table according to claim 1, characterized by comprising: 3. A series of rollers (601, 601) are provided in the XY plane with a slight inclination with respect to the Y-axis, whereby the work table (61) is moved toward the ruler (3) on the outward path.
The automatic table according to claim 1 or 2, wherein the automatic table reciprocates while receiving a force toward the opposite side on the return path. 4. A ruler (3) is provided with a gap detection device (30, 30) between it and a work material (5), and a work material position control device (7) detects a signal emitted from the gap detection device. Depending on,
The automatic table according to any one of claims 1 to 3, wherein the position of the processed material (5) is controlled so that the gap value becomes zero. 5. A machine stand (1), a pair of upper and lower saw wheels (not shown) provided on the machine stand (1), and a workpiece cutting section (2) for a band saw wound around the saw wheel. A ruler (3) wider than the band saw, provided with an adjustable gap therebetween, and a stepping device (4) for adjusting the distance between the ruler (3) and the workpiece cutting portion (2) of the band saw. And is provided on the machine base (1), causes the work material (5) to be cut by the band saw on the outward path, and retreats the work material (5) from the work material cutting portion (2) of the band saw on the return path. A work material feeding device (6) for reciprocating and circulating the work material (5) in the longitudinal direction, and a surface of the work material (5) facing the reference surface of the ruler (3) are brought into close contact with the reference surface of the ruler (3). Device (7) for controlling the position of workpiece (5)
A device (8) for feeding the work material to the work material feeding device (6), a device (9) for carrying out the cut plate material, a device for driving the above-mentioned components, and controlling their operations. An automatic table, which is composed of a machine and is used to grind a plate from a double-cut chamfered wood, when the machined material feed direction is the X axis and the direction perpendicular to it in the horizontal plane is the Y axis, the machined material feed device (6 ) Is installed on the trolley, which is opposite to each other, and the trolley that runs on the track provided along the X axis, and is processed at least during the period when the processing material (5) is pressed against the ruler (3). The above-mentioned auto table, which comprises a pair of push cups for holding both ends of the processed material (5) so that the end of the material (5) can be moved without resistance in the Y-axis direction. 6. A machine stand (1), a pair of upper and lower saw wheels (not shown) provided on the machine stand (1), and a workpiece cutting section (2) for a band saw wound around the saw wheel. A ruler (3) wider than the band saw, provided with an adjustable gap therebetween, and a stepping device (4) for adjusting the distance between the ruler (3) and the workpiece cutting portion (2) of the band saw. And is provided on the machine base (1), causes the work material (5) to be cut by the band saw on the outward path, and evacuates the work material (5) from the work material cutting part (2) of the band saw on the return path. A work material feeding device (6) for reciprocating and circulating the work material (5) in the longitudinal direction, and a surface of the work material (5) facing the reference surface of the ruler (3) are brought into close contact with the reference surface of the ruler (3). Device (7) for controlling the position of workpiece (5)
A device (8) for feeding the work material to the work material feeding device (6), a device (9) for carrying out the cut plate material, a device for driving the above-mentioned components, and controlling their operations. An automatic table, which consists of a device and is used to grind planks from double-cut chamfered wood, with a ruler (3) and machining when the machining material feed direction is the X axis and the direction perpendicular to it in the horizontal plane is the Y axis. A device for detecting a gap with the material (5) is provided, and a processed material feeding device (6) holds a trolley provided on an orbit provided along the X axis and both ends of the processed material (5). Therefore, a pair of push cups, which are provided on the carriage so as to face each other and are movable in the Y-axis direction, and a pair of push cups so as to keep the gap between the ruler (3) and the processed material (5) constant. A device for controlling the position in the Y-axis direction, and Auto table above. 7. A machine stand (1), a pair of upper and lower saw wheels (not shown) provided on the machine stand (1), and a workpiece cutting section (2) for a band saw wound around the saw wheel. A ruler (3) wider than the band saw and provided with an adjustable gap therebetween, and a stepping device (4) for adjusting the distance between the ruler (3) and the workpiece cutting portion (2) of the band saw. And is provided on the machine base (1), causes the work material (5) to be cut by the band saw on the outward path, and retreats the work material (5) from the work material cutting portion (2) of the band saw on the return path. A work material feeding device (6) for reciprocating and circulating the work material (5) in the longitudinal direction, and a surface of the work material (5) facing the reference surface of the ruler (3) are brought into close contact with the reference surface of the ruler (3). Device (7) for controlling the position of workpiece (5)
A device (8) for feeding the work material to the work material feeding device (6), a device (9) for carrying out the cut plate material, a device for driving the above-mentioned components, and controlling their operations. An automatic table, which is composed of a machine and is used to grind a plate from a double-cut chamfered wood, when the machined material feed direction is the X axis and the direction perpendicular to it in the horizontal plane is the Y axis, the machined material feed device (6 ) Is a guide rail (101, 101) provided on the machine base (1)
X-axis direction slide table (6x) which is reciprocally moved in the X-axis direction along with, and Y-axis direction reciprocation along the guide rails (61x, 61x) provided on the X-axis direction slide table (6x). Y-axis direction slide table (6y) and a pair of push cups (61) mounted on the Y-axis direction slide table (6y) and holding both ends of the processed material (5).
2, 613) and a Y-axis direction slide table (6y).
Drive device (60y) is the above work material position control device (7)
The above-mentioned auto table characterized in that it plays a role as. 8. The control device for interlocking the stepping device (4) and the driving device (60y) of the Y-axis direction slide table (6y) is provided to enable bending and bending. Auto table.