JP3200074B2 - Feeding method for cutting 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 material feeding method in a cutting machine for feeding a work to a cutting machine.

[0002]

2. Description of the Related Art Conventionally, for example, a cutting machine such as a horizontal band saw machine is provided with a feeding device on one side, and a product receiving stand for products cut by the cutting machine is provided on the other side of the cutting machine. Have been. The material supply device includes a material feeding conveyor that is movable in the direction in which the workpiece is fed and a material feeding conveyor that is movable in a direction perpendicular to the direction in which the workpiece is fed.

When a work is fed from a feeding device to a cutting machine, the work placed on the feeding conveyor is rotated, for example, in one direction, and the work is provided on one side of the feeding conveyor. Positioning is performed by abutting a member, for example, a reference roller.

[0004] Next, the material conveyor is raised, and only the work to be cut is placed on the material conveyor, and then the material conveyor is rotated and sent to the cutting machine. It is known that after a predetermined amount of work has been moved, the work is clamped and held by a feed vise, the work is fed into a cutting machine, and cut into a desired length by the cutting machine.

[0005]

By the way, in the above-mentioned conventional material feeding apparatus, the reference roller, which is a reference member, is located at the material feeding reference position until the work is fed to the cutting machine side, and the work is reliably fed. Material becomes possible. Even if the work is bent or warped, the work is not constrained and can be sent to the cutting machine side by the material feeding conveyor.

However, when the work is fed into the cutting machine, the work is clamped by the feed vise and sent while measuring the length to the center of the saw blade processing portion. However, there is a problem that the material cannot be fed due to interference with a reference roller serving as a reference member.

For example, as shown in FIG.
On the entry side of the saw blade 203 of the cutting machine 201, the main body vise 20
5 and a feed vise 207 are provided. A feeding conveyor 211 as a feeding device 209 is provided near the feeding vise 207, and a plurality of feeding conveyors 213 are disposed in a direction orthogonal to the feeding conveyor 211. Reference roller 21 serving as a reference member on the side
5 are provided.

According to the above configuration, the work W placed on the supply conveyor 213 comes into contact with the reference roller 215 provided on one side and stops when the supply conveyor 213 rotates.
Then, the work W to be cut by the material conveyor 211
Only the material is sent to the cutting machine 201 side. The workpiece W sent to the predetermined position is clamped and held by the feed vise 207, and is moved and fed by a predetermined amount into the cutting machine 201.

However, if the work W is bent or warped, the tail end E of the work W enters the material feeding reference plane indicated by the line PP in the figure and interferes with the reference roller 215.

As a result, when the work W is advanced by a predetermined amount by the feed vise 207, the tail end portion E of the work comes into contact with the reference roller 215, thereby flawing the work or making it impossible to feed the material. In the worst case, there is a problem that the device is damaged.

[0011] An object of the present invention is to solve the above-mentioned problems and to smoothly feed materials even if the work to be handled has a bend or warp, and to prevent damage to the work without flawing the work. An object of the present invention is to provide a method of feeding materials in a cutting machine.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a work apparatus provided on one side of a cutting machine, comprising a feeding conveyor and a feeding conveyor. When feeding the workpiece, a desired work is placed in parallel on the feeding conveyor arranged in a direction orthogonal to the feeding direction of the work, and the feeding conveyor is driven to be provided on one side of the feeding conveyor. The workpiece is brought into contact with the reference member, and the reference is set.Then, the material conveyor is raised, only the work to be cut is placed on the material conveyor, and then the material conveyor is rotated to cut the work. After the work is moved by a predetermined amount, the work is clamped and held by a feed vise provided in the cutting machine, the reference member is retracted from the work by a predetermined amount, and then the feed vise is moved. Conveyor The by rotated a material supplying method in a cutting machine for Okuzai the workpiece to the cutting machine.

[0013]

[0014]

By employing the feeding method in the cutting machine according to the present invention, a feeding apparatus including a feeding conveyor and a feeding conveyor is arranged on one side of the cutting machine. The workpieces are placed in parallel on the feeding conveyor, and the workpieces are brought into contact with a reference member provided on one side of the feeding conveyor to be positioned.
Next, the feeding conveyor is raised, and only the work to be cut is sent to the cutting machine by rotating the feeding conveyor, moved by a predetermined amount, and the work is clamped and held by the feed vise.

Thereafter, the reference member is retracted from the work by a predetermined amount (the amount by which the work does not contact the reference member even if the work is bent or warped, etc.), and then the feeding vise is moved and the feeding conveyor is rotated. Then, a work at a desired position in the cutting machine is set and cutting is performed.

Since the tail end of the work does not come into contact with the reference member even if the work is bent or warped, the work is not scratched and the equipment is not damaged.
A smooth cutting operation is performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 8, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For example, one side (right side in FIG. 8) of a cutting machine 1 such as a swing type horizontal band saw machine is provided with a book. A feeding device 3 as a main part of the embodiment is arranged, and the other side of the cutting machine 1 (the left side in FIG. 8).
Is provided with a product receiving table 5. For example, a swing type horizontal band saw machine and a product receiving table 5 as the cutting machine 1 have a generally known configuration, and thus a detailed description thereof will be omitted. However, the workpiece W sent from the feeding device 3 is desired by the cutting machine 1. , And the cut product is placed on the product receiving table 5 and stored.

The concrete structure of the material supply device 3 is shown in FIG. 8, FIG. 9 and FIG. That is, FIGS.
10, a chain conveyor 7 as a plurality of material conveyors is provided at appropriate intervals in the left-right direction (hereinafter, referred to as X-axis direction) in FIG. 9, which is the direction in which the workpiece W is fed to the cutting machine 1 side. Is provided. To support each chain conveyor 7, a support frame 9 is provided between both sides of each chain conveyor 7.

A sprocket 11 is provided on the upper side of each chain conveyor 7 in FIG.
A shaft 13 extending in the X-axis direction is mounted on one axis. A pulley 15 is attached to one end of the shaft 13 (the right end in FIG. 9).

As shown in FIG. 9, a drive motor 17 is fixed to one end of the shaft 13 in the vicinity of, for example, the floor via a bracket. A pulley 19 is attached to the output shaft of the drive motor 17,
A belt 21 is wound around the pulley 19 and the pulley 15.

Further, at the other end of each chain conveyor 7, for example, a semi-circular driven support member 23 for facilitating rotation of the chain conveyor 7 is integrated with the lower support frame 9 in FIG. . The support frame 9
In FIG. 8, a stopper member 2 is provided on the upper side to prevent the work W from dropping from the chain conveyor 7 when the work W is placed on the chain conveyor 7 by a crane or a fork.
5 are provided.

With the above structure, as shown in FIG. 8, when the work W is placed on the chain conveyor 7 by a crane or a fork and the drive motor 17 is driven, the pulleys 19,
The shaft 13 is rotated in one direction via the belt 21 and the pulley 15. When the shaft 13 is rotated in one direction, the chain conveyors 7
Since the workpiece W rotates in the axial direction (a direction orthogonal to the X-axis direction), the work W is moved in the Y-axis direction.

A reference roller 2 as a reference member is provided beside one end (the lower end in FIG. 9) of each of the chain conveyors 7.
7 are provided. The detailed configuration of the reference roller 27 will be described later.

Referring again to FIG. 8, FIG. 9 and FIG. 10, on the left side in FIG. 9, there is provided a conveyor base 29 of a roller conveyor as a material conveyer extending in the X-axis direction. More specifically, as shown in FIG. 10, a support frame 31 having a plurality of columns arranged at appropriate intervals in the X-axis direction is erected on a conveyor base 29. On this support frame 31, a double-supporting rotatable roller conveyor 33 is supported. A sprocket 37 is attached to one end of a shaft 35 for rotating each roller conveyor 33, and each support frame 3
A sprocket 39 is rotatably supported on the same side as one end of the shaft 35 in FIG. A chain 41 is wound around the sprocket 39 and the sprocket 37.

In FIG. 10, a sprocket 43 is rotatably supported at the lower portion of each support frame 31 on the same axis as the sprocket 39, and a chain 45 is wound around the sprocket 43.

A drive motor 47 for rotating the chain 45 is provided, for example, between the second and third support frames 31 from the right in FIG.

With the above configuration, when the drive motor 47 is driven, the chain 45 travels in the X-axis direction. When the chain 45 moves, each sprocket 43 rotates,
Since the chain 41 rotates in the Z-axis direction (vertical direction in FIG. 10) via each sprocket 39, the sprocket 37 rotates and the roller conveyor 33 rotates via the shaft 35.

As shown in FIG. 10, a guide member 49 is provided on the lower surface on the front and rear sides (left and right sides in FIG. 10) of the conveyor base 29. On the other hand, FIG.
In the vicinity of the left and right sides of the conveyor base 29, for example, an L-shaped bracket 51 is provided on the floor surface, and a guide rail 53 is provided inside the bracket 51 so as to extend in the Z-axis direction. ing. The guide rail 53 is provided with a guide member 55 for guiding along the guide rail 53. This guide member 5
Reference numeral 5 is provided outside a bracket 57 having, for example, an L-shape, and a guide rail 59 is mounted on a horizontal portion of the bracket 57 so as to extend in the Y-axis direction. The guide member 49 is provided on the guide rail 59 and is guided along the guide rail 59.

A drive motor 61 is provided at a rear portion (right portion in FIG. 9) of the conveyor base 29. The drive motor 61 has a ball screw 6 extending in the Y-axis direction.
3 are interlocked. A nut member 65 is screwed into the ball screw 63, and the nut member 65 is fixed to the bracket 57.

When the drive motor 61 is driven, the ball screw 63 rotates, and the ball screw 63 is screwed to the nut member 65. The nut member 65 is fixed to the bracket 57. Is guided along the guide rail 59 and is moved in the Y-axis direction. Therefore, the conveyor base 29 is moved in the Y-axis direction.

In FIG. 10, a lift cylinder 67 is provided on a horizontal portion of each bracket 51, and a piston rod 69 movable in the Z-axis direction is mounted on the lift cylinder 67. The tip of the piston rod 69 is integrated with the lower surface of the horizontal portion of the bracket 57.

With the above arrangement, when the lift cylinder 67 is operated, the piston rod 69 moves in the Z-axis direction, so that the guide member 55 is guided and moved along the guide rail 53, and the bracket 57 moves in the Z-axis direction. Moved to By moving the bracket 57, the roller conveyor 33 is moved in the Z-axis direction via the conveyor base 29.

Referring to the reference roller 27, as shown in more detail in FIGS. 1 and 2, the rotating shaft 73 is supported on the support frame 9 via a bearing 71 in the X-axis direction (in FIG. (In a direction perpendicular to the direction) and is rotatably supported. Arms 75 are provided at a plurality of positions
Are provided integrally, and the reference roller 2
7 is erected.

As shown in FIG. 2, the reference roller 27 has a support block 77 integrally provided at the tip of the arm 75.
9 is erected, and a roller 79 is mounted on a shaft 79 via a bush 81.
3 is rotatably supported.

On the other hand, the arm 85
A clevis 91 engaged with a tip of a piston rod 89 of a hydraulic cylinder 87 is engaged with a tip of the arm 85 via a pin 93. The rear part of the fluid pressure operation cylinder 87 is pivotally supported by a bracket 97 mounted on the support frame 9 by pins 97.

With the above configuration, when a pressure fluid is supplied to the port A of the cylinder 87 from a fluid pressure source (not shown), the piston rod 89 projects and the rotation shaft 7 via the arm 85.
3 rotates. The arm 75 is rotated by the rotation of the rotation shaft 73, and the reference roller 27 provided on the arm 75 is held vertically. When the chain conveyor 7 rotates clockwise in FIG. 1 against the reference roller 27, the work W moves to the right and abuts thereon, and the work W is set as a reference. The maximum retreat position of the reference roller 27 can be turned to a position where the reference roller 27 is submerged from the work transfer line of the chain conveyor 7 as shown by a two-dot chain line in FIG.

Next, the operation of feeding the workpiece W to the cutting machine 1 from the time when the workpiece W is placed on the feeding device 3 will be described. First, in FIG. 3, as a device arrangement, a main body vise 101 and a feed vise 103 are provided on the entry side of the saw blade 99 of the cutting machine 1. A chain conveyor 7 is provided adjacent to the feed vise 103 at an appropriate interval in the X-axis direction as a material feeding device 3 as a material feeding conveyor, and a roller conveyor as a material feeding conveyor is provided in a direction orthogonal to the chain conveyor 7. 33 are provided. Further, the chain conveyor 7
A reference roller 27 is provided at one end (the lower side in FIG. 3).

The work W is placed on the chain conveyor 7 in the order of cutting by a crane, a forklift or the like. When the work W is moved by driving the chain conveyor 7, the work W comes into contact with the reference roller 27 and is positioned. You. In addition,
At this time, the roller conveyor 33 is located below the transfer line of the chain 7.

Next, the roller conveyor 33 is raised,
Only the work W to be cut is lifted, and the work W is cut by the cutting machine 1.
To the feed vise 103 on the side. In order to lift only the workpiece W to be cut, a means for forming a gap between the adjacent workpiece W and preventing interference is performed by a known means.

When the work W is sent to the feed vise 103 side, even if the work W is bent or warped, the work W is not restrained in the Y-axis direction. Is sent into the feeding vise 103.

The tip of the fed work W is detected by, for example, a photo sensor 105. As shown in FIG. 4, the feed vise 103 clamps the work W and moves the reference roller 27 a predetermined distance from the work W. That is, considering the bending and warping of the work W, the tail end E of the work W is considered.
Is a distance that does not contact the reference roller 27.
Evacuate from P line. In this operation, the piston rod 89 is contracted by supplying the pressure fluid to the port B of the cylinder 87 shown in FIG. 1, and the reference roller 27 is rotated about the rotation shaft 73 and retracted by a predetermined distance. (Separation)
Can be done.

For this reason, when the work W is clamped by the feed vise 103 and moved to the saw blade 99 by a predetermined amount, even if the work W is bent or warped, it does not interfere with the reference roller 27, so that the material cannot be fed. , The work W is not damaged, and the device is not damaged. In the example of FIG. 4 where the work W is indicated by a two-dot chain line, the work W is clamped by the front vise 107 provided on the product side. Even in this case, the reference roller 27 is retracted. Therefore, the effect as described above can be obtained.

Further, in order to facilitate understanding, FIGS.
The operation will be described in detail with reference to the operation flowchart shown in FIG.

First, referring to FIG. 5, step S1
Indicates a condition. That is, the conditions on the front vise 107 side are the front vise rise / center, the front vise open, and the origin of the front vise positioning, and the conditions on the cutting machine 1 side are the saw blade 99 rise, the guide bracket open, the feed vise 103. It is open.

The condition on the material supply device 3 side is the origin of the roller conveyor 33. If all of the above conditions are met, the process moves to step S2.

In step S2, if the main body vise 101 is zero-clamped, that is, closed, the process proceeds to step S3.

In step S3, the mode is switched from manual to automatic mode, and in step S4, the saw blade 99 is automatically activated.

Subsequently, in step S5, the retraction limit of the feed vise 103 is confirmed, and if the roller conveyor 33 has risen, it is lowered, and the reference roller 27 is raised, that is, brought into a vertical state. Then, after the reference roller 27 is raised, the lowering limit of the roller conveyor 33 is detected, and the process proceeds to step S6 shown in FIG.

In step S6, the chain conveyor 7 as the material supply conveyor is moved rightward. Then, two of the roller touch sensors are turned off and the process proceeds to step S7.
In step S7, the chain conveyor 7 is stopped, and the workpiece W is brought into contact with the reference roller 27.

Subsequently, the Y-axis positioning of the roller conveyor 33 as a material feeding conveyor is performed in step S8,
The process proceeds to step S9 by counting up to the roller Y-axis ENC (encoder). When the Y-axis positioning of the roller conveyor 33 is completed in step S9, the roller conveyor 33 is raised in step S10, only the work W to be cut is placed on the roller conveyor 33, and the roller conveyor 33 is moved to the upper limit. Stop.

Then, in step S11, the chain conveyor 7 is moved leftward, and the chain conveyor 7 is stopped by counting up the chain conveyor 7 ENC (encoder). (Step 12) This is to provide a gap between the work W to be cut and the work W to be cut next to prevent interference.

Next, in step S13, the roller conveyor 33 is moved forward to cut the workpiece W to be cut to the cutting machine 1 side.
Only send. After the leading end of the transferred work W passes through the feed vise 103 and is detected by, for example, the photosensor 105, the roller conveyor 33 stops via a timer.
(Step S14) When the roller conveyor 33 stops, the feed vise 103 is operated in step S15 to operate the work W
Clamp. At this time, the material width of the work W is measured and checked. Then, the feed vise 103 ENC (encoder) is counted, and the completion of the clamp is confirmed.
Move to 6.

In step 16, the reference roller 27 is rotated from the vertical state and retracted from the work W by a predetermined amount. The predetermined amount is a distance at which the tail end E of the work W does not interfere with the reference roller 27 when the work W is transferred even if the work W is bent or warped.

Subsequently, the operation proceeds to step S17 shown in FIG. In step S17, the feed vise 103 is advanced, and in step S18, the tip of the work W is abutted against the main body vise 101. Then, the output of the feed ENC is set to zero, and in step S19, the feed vise 103 is slightly retracted, for example, by 5 mm. The feed vise 103 is stopped by counting up the feed ENC. (Step S20) When the feed vise 103 stops in step S20, in step S21, the main body vise 101 is loosened and wide open, and the feed vise 103 is advanced through a timer to perform X-axis positioning. (Step S22) Then, in step S23, the products are classified according to the cut length. For example, if the tip is not cut and the product length is 400 mm or more, the feed vise 103 is stopped in step S24a after count-up of the feed ENC, and the next cutting operation is started although not shown. If the product has a front end cut and the product length is 10 to 40 mm, after counting up the feed ENC, in step S24b, the feed vise
And start cutting work. If the tip is not cut and the product length is 400 mm or less, the feed vise 103 is stopped in step S24c after the feed ENC is counted up, and the cutting operation is started. Although not shown, the movement of the feed vise 103 and the driving of the roller conveyor 33 are synchronized, and when the feed vise 103 moves, the roller conveyor 33 also rotates.

On the other hand, when the work W is clamped by the front vise 107, the reference roller 27 is retracted a little in step 16 and then the process proceeds to step S25.

In step S25, after the material width check is completed, positioning of the front vise 107, that is, positioning of the Z-axis and positioning of the clamp Y-axis from the vise width wide open. After counting up the Z-axis ENC and counting up the Y-axis vise ENC, the process proceeds to step S26.

In step S26, the front vice 107 is set to Y
Open slightly in the axial direction. Then, after counting up the Y-axis vise ENC, the process proceeds to step S27. In step S27, the front vise 107 is retracted, X-axis positioning is performed, and the flow proceeds to step S28.

In step S28, as in the operation of the feed vise 103 described above, the products are classified according to the cut length of the products. For example, in the case where the front end is not cut and the product length is 400 mm or more, the front vise 107 is stopped in step S29a to start cutting. With tip cutting, product length 10-40mm
In the case of (1), the front vise 107 is stopped in step S29b, and the cutting operation is started. Also, no tip cutting, product length 4
If it is less than 00 mm, the front vise 1 is set in step S29c.
07 is stopped and cutting work is started.

As described above, the workpieces W are placed in parallel on the chain conveyor 7 as a material conveyor, and the reference roller 27 as a reference member provided on one side of the chain conveyor 7.
The workpiece W is brought into contact with the workpiece to perform positioning. Then, the roller conveyor 33 as a material conveyor is raised, and only the work W to be cut is moved to the cutting machine 1 by a predetermined amount, and the work W is clamped and held by the feed vise 103. After that, the reference roller 27 is retracted from the work W by a required amount, and then the work W is sent into the cutting machine 1 by the feed vise 103 to perform the cutting operation.

Even if the work W is bent or warped, the work W does not come into contact with the reference roller 27 at the time of material feeding, so that the work W may be scratched or the equipment may be damaged. It can be sent smoothly without any problem.

The present invention is not limited to the embodiment described above, but can be embodied in other modes by making appropriate changes. For example, in the present embodiment, the reference roller 27 as a reference member is rotated by the cylinder 87 via the arms 75 and 85, and the reference roller 27 is retracted from the work W. However, the linear roller type or the eccentric cam type may be used. Alternatively, a structure in which the reference roller itself is formed of an elastic body and escapes only when an external force is applied is also possible.

[0062]

As will be understood from the above description of the embodiment, according to the present invention, a feeding device constituted by a feeding conveyor and a feeding conveyor is arranged on one side of a cutting machine. . The workpieces are placed in parallel on the feeding conveyor, and the workpieces are brought into contact with a reference member provided on one side of the feeding conveyor to be positioned. Next, after raising the material conveyor and placing only the workpieces to be cut on the material conveyor,
The work is sent to the feed vise by rotating the material feeding conveyor.

The work fed to the feed vise by a predetermined amount is clamped and held by the feed vise, the reference member is retracted from the work by a predetermined amount, and then the feed vise is moved toward the cutting machine by a predetermined amount.

Therefore, even if the work held and clamped by the feed vise is bent or warped, the work does not come into contact with the reference member during work feeding, and the work can be scratched.
Equipment damage due to work interference can be prevented,
Smooth feeding can be performed.

[Brief description of the drawings]

FIG. 1 shows a main part of the present invention, and shows II in FIG.
It is an expanded sectional view along a line.

FIG. 2 is an enlarged sectional view taken along line II-II in FIG.

FIG. 3 is an explanatory diagram when a workpiece is transferred by a material supply device.

FIG. 4 is an explanatory view when a workpiece is held and held by a feed vise.

FIG. 5 is a part of the operation flow church of the present invention.

FIG. 6 is a part of an operation flowchart of the present invention.

FIG. 7 is a part of an operation flowchart of the present invention.

FIG. 8 is a perspective view of a material supply device in a cutting machine according to an embodiment of the present invention.

FIG. 9 is a plan layout view in FIG. 8;

FIG. 10 is a sectional view taken along line XX in FIG. 9;

FIG. 11 shows a conventional example, and is an explanatory diagram when a workpiece is clamped by a feed vise and a material is fed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cutting machine 3 feeding device 7 chain conveyor (feeding conveyor) 27 reference roller (reference member) 33 roller conveyor (feeding conveyor) 103 feed vise

Claims (1)

(57) [Claims] When a workpiece is fed to a cutting machine from a feeding device provided on one side of a cutting machine and configured by a feeding conveyor and a feeding conveyor, the workpiece is orthogonal to a feeding direction of the workpiece. A desired work is placed in parallel on the feeding conveyor arranged in the direction, the feeding conveyor is driven, the work is brought into contact with a reference member provided on one side of the feeding conveyor, and a reference is set, and then After raising the material conveyor and placing only the work to be cut on the material conveyor, rotating the material conveyor and sending the work to the cutting machine side, the work was moved by a predetermined amount, and the work was provided in the cutting machine. It is characterized in that the work is clamped and held by a feed vise, the reference member is retracted from the work by a predetermined amount, then the feed bus is moved, and the work conveyor is rotated to feed the work into the cutting machine. Do Feeding method for cutting machine.