JPH10296532A - Cutting work method and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a dead space, to effectively use an area of a plant and to reduce idle time in the cutting cycle time. SOLUTION: This cutting work device is provided with a sizing device 31 furnished with a feed vice device 27 to clamp a work W placed on a material feeding conveyor 17 free to move on the material feeding conveyor 17 and a cylinder 69 of fluid pressure actuation which is an avoidance means 59 to avoid the feed vice device 27 to a region with no obstacle to supply the work W from a material supply device 21 onto the material feeding conveyor 17 on the sizing device 31. Consequently, as it is possible to supply the work W to the material feeding conveyor 17 whichever position of the material feeding conveyor 17 the feed vice device 27 exist at, it is possible to reduce a dead space and to reduce idle time in the cutting cycle time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for processing a cutting machine.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for cutting a work with a horizontal band saw machine as a cutting machine, an apparatus as shown in FIG. 7 is known.

[0003] That is, on the rear side (left side in FIG. 7) of the horizontal band sawing machine 201, a material feeding conveyor 203 is provided to extend, and a work supply device 205 is provided adjacent to the material feeding conveyor 203. A material feeding device 207 that clamps the rear end of the work W supplied from the work supply device 205 onto the material feeding conveyor 203 and feeds the material W to the horizontal band sawing machine 201 is provided movably in the front-rear direction. . More specifically, the material feeding device 207 includes a sizing device 209 that performs length measurement, and a feeding vise device 211 provided in the sizing device 209. A front vice device 213 is provided on the front side (the right side in FIG. 7) of the horizontal band sawing machine 201. The line KK indicates a saw blade cutting line.

[0004] With the above configuration, the operation is as shown in FIG.
Referring to FIG. 10 to FIG. 10, first, as shown in FIG. 8, the last product picking of one work W is completed. More specifically, the trailing end of the work W is
The workpiece W is clamped by the front vice device 213 and cut by the saw blade cutting line KK of the horizontal band saw machine 201. The remainder W _Z is paid out by releasing the clamping of the feeding device 211.

[0005] Next, as shown in FIG.
_{When Z} is paid out, the material feeding device 207 is returned to the origin. The origin is a position where the next work W does not interfere with the work W when the next work W is fed onto the material feeding conveyor 203.

Then, as shown in FIG. 10, the work W is supplied onto the material feeding conveyor 203,
07, the rear end portion of the work is clamped by the feed vise device 211 to start the sizing operation and the cutting process is performed.

Although not shown, a type in which the length is measured by upper and lower pinch rollers is also employed.

[0008]

However, in the above-described material feeding device 207 in the conventional horizontal band sawing machine 201, the feeding vise device 211 needs to be located rearward of the work length, so that a useless space is increased. was there.

Further, since the material feeding device 207 shortens the remaining material of the work W, the overall length of the device cannot be reduced. Further, in the type in which the length measurement is performed by the upper and lower pinch rollers, there is a problem that the length measurement accuracy is poor.

An object of the present invention is to provide a cutting machine processing method and apparatus which reduce dead space, effectively utilize the area of a factory, and reduce idle time in a cutting cycle time.

[0011]

According to a first aspect of the present invention, there is provided a cutting method for cutting a workpiece placed on a material feeding conveyor provided at a rear side of a cutting machine. In the cutting method for feeding a material to a machine and performing a cutting process, (A) a work carrying-in step of placing a work on a material-feeding conveyor provided on the rear side of the cutting machine, and (B) a work carrying-in step. A cutting step in which the rear end of the work placed on the material feeding conveyor is clamped by a feed vise device provided in a sizing device, and cutting is repeated to a desired length by the cutting machine; (C) the cutting step After the last product has been cut, the remaining material is discharged in the remaining material discharging step in which the remaining material is discharged in the remaining material discharging step. Avoidance of feed vise device to avoid in the direction (E) In the feed vice device avoiding step, the sizing device is retracted while avoiding the feed vise device in the upward direction, and the product length of the next workpiece is cut off or fixed by a fixed amount determined by a parameter. And a step of retracting the sizing device.

According to a second aspect of the present invention, there is provided a cutting and processing apparatus, comprising: a feeding conveyor provided at a rear side of a cutting machine; and a feed vise device for clamping a work placed on the feeding conveyor. An avoiding means for arranging a device movably on the material feeding conveyor and avoiding a feed vice device provided in the sizing device within a range that does not hinder the supply of the work from the material feeding device to the material feeding conveyor. It is characterized by being provided in the sizing device.

Therefore, in the cutting method and the apparatus according to the first and second aspects of the present invention, the feed vice device provided in the sizing device is provided by the avoiding means provided in the sizing device, and the feed vice device is fed from the material supply device. Workpieces supplied on the conveyor are avoided to the extent that they do not interfere.

Therefore, it is not necessary to make the feed vise device provided in the sizing device stand by at the rearmost position of the material feeding conveyor when the work is supplied. The work can be supplied from the material device onto the material feeding conveyor.

Since the feed vise device does not need to return to the rear of the work, the idle time is reduced in the cutting cycle time, the dead space is reduced, and the area of the factory can be effectively used.

Further, according to a third aspect of the present invention, in the cutting apparatus according to the second aspect, the avoiding means includes an avoidance driving means for moving the feed vise device to an upward avoiding position. It is characterized by being provided in an apparatus.

Therefore, the cost can be reduced by using simple components.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

First, in order to facilitate understanding, a line configuration in a horizontal band sawing machine, for example, as a cutting machine will be schematically described.

Referring to FIGS. 3 and 4, a work loading device 3 is provided on the rear side (left side in FIG. 3) of a cutting machine 1, such as a swing type horizontal band sawing machine. A cutting material unloading device 5 is provided on the front side (right side in FIG. 3). The cutting material unloading device 5 is composed of unloading conveyors 9 and 11 provided with a plurality of rollers 7 although not shown in the drawing, and a stopper 13 that moves up and down by a cylinder or the like is provided at an appropriate position.

The swing type horizontal band sawing machine, which is the cutting machine 1, has a well-known structure, and detailed description of its structure is omitted. However, the front vice device 15 is disposed adjacent to the front side of the cutting machine 1. It has. Note that the saw blade cutting line is indicated by line KK.

The work loading device 3 includes a material feeding conveyor 17 for feeding the work W to the cutting machine 1 and a material feeding device 19 that is movable on the material feeding conveyor 17 in the front-rear direction (the left-right direction in FIG. 3). And a material supply device 21 that supplies the work W to the material feeding conveyor 17.

The material conveyer 17 includes a plurality of V rollers 2
The work 3 is rotatably provided on the gantry 25, and feeds the workpiece W transferred onto the V roller 23 to the cutting machine 1.

The material feeding device 19 includes a feeding vise device 27 for clamping the rear end of the work W, a pusher device 29 for pushing out the work W, and a sizing device 31. Referring to FIG. 4 in more detail, the sizing device 31 has a plurality of linear guide rails 33 laid on a side surface of a gantry 25 constituting the material feeding conveyor 17 in a front-rear direction. 33 is provided with a material feeding device main body 37 via a linear guide 35.

A rack member 39 extends in parallel with the linear guide rail 33 and is provided on the gantry 25.
A pinion 41 meshing with the rack member 39 is mounted on the material feeding device main body 37, and a servo motor 43 for rotating the pinion 41 is provided on the material feeding device main body 37. The servo motor 43 includes an encoder, and the total length of the workpiece W is measured by a pulse generated by the servo motor 43.

The feed vise device 27 is provided with a plurality of linear guide rails (not shown) in a vertical state on a side surface of the material feeding device main body 37, and feeds the linear guide rails via a linear guide (not shown). Vise base 4
5 is mounted to be vertically movable. As a drive source for moving the feed vise base 45 up and down, a fluid pressure operated cylinder (not shown) provided in the material feeding device main body 37 is used. And the feed vise base 45
A vice body 47 is provided on the front side of the V-rotor 23 provided on the material conveyer 17 and distributed to the left and right sides with respect to the center where the work W is placed. It is opened and closed by the operation of the cylinder 49, and the work W can be freely clamped and unclamped.

The pusher device 29 moves the pusher body 53 back and forth by a fluid pressure operated cylinder 51,
The work W is pressed by being brought into contact with the rear end face of the work W.

The feeder 21 is provided with the feeder conveyor 1.
7, a plurality of work supply devices 57 are provided in the work support frame 55.

With the above configuration, first, a work W is supplied onto the material supply device 21 by, for example, a crane or the like.
Are fed one by one by the work supply device 57.
On the V roller 23 of FIG. When the work W is supplied onto the V roller 23, the V roller is driven to move the work W until the tip of the work W comes into contact with the stopper 13 provided on the front side of the cutting machine 1.

In this state, with the distance between the two vice bodies 47 of the feeding vise device 27 provided in the material feeding device 19 largely widened, the servo motor 43 provided in the material feeding device 19 is moved to rotate the pinion 41. The material feeding device 19 is moved forward by the rack member 39. Then, after a sensor (not shown) attached to the tip of the feeding vise device 27 detects the rear end of the work W, the feeding device 19 is advanced at a very low speed.

The pusher body 53 of the pusher device 29 provided in the material feeding device 19 is at the receding limit.
When the workpiece 3 comes into contact with the rear end face of the workpiece W, the servomotor 43, which is the sizing device 31 provided in the material feeding apparatus 19, does not generate a pulse, so that the workpiece W comes into contact with the stopper 13 and the pusher body 53. And the feed vice device 27
Is closed, and the workpiece W is clamped.

In this state, the entire length of the work W is measured.
That is, the stopper 13 is fixed in the material feeding direction,
This is because the servomotor 43 provided in the material feeding device 19 is provided with an encoder, and its position is always known.

After the measurement of the entire length of the work W, the stopper 13 is retracted, and the work W is sent to the set dimension to start cutting. Thereafter, a continuous cutting process is performed. The pusher main body 53 of the pusher device 29 provided in the material feeding device 19 includes:
The material feeding and cutting work is always performed in a state of being in contact with the rear end face of the work W.

The vise body 47 provided in the feed vise device 27 is vertically movable by a cylinder (not shown), so that the vise body 47 is moved upward (FIG. 4).
Position of the two-dot chain line).
Thus, the work W can be supplied onto the material conveyor 17.

Next, the avoiding means 59 of the feed vise device 27, which is a main part of the present embodiment, will be described in more detail.

Referring to FIG. 1 and FIG.
9, linear guide rails 61 are provided at a plurality of locations extending in the vertical direction on the side surface of a material feeding device main body 37 constituting the material feeding device 19, and slide on the linear guide rails 61. A plurality of contacting linear guides 63 are provided on the feed vise base 45. And
Bracket 65 provided on the feed vise base 45
Further, a piston rod of a fluid-pressure operated cylinder 67, which is an avoidance driving means provided on the material feeding device main body 37 side, is connected.

With the above configuration, when the cylinder 67 is operated, the feed vise base 45 can move vertically on the linear guide rail 61 via the linear guide 63. That is, the feed vise device 27 provided on the feed vise base 45 is raised from the position shown by the solid line in FIG. 2 to the position shown by the two-dot chain line, and is supplied from the feeder 21 onto the feed conveyor 17. There is no hindrance to the work W.

The feed vise base 45 is provided with a base plate 69 integrally therewith.
A pinion 71 is rotatably mounted on the pinion 7.
The rack members 73 are movably meshed in the left-right direction (up-down direction in FIG. 1 and left-right direction in FIG. 2). The vice body 47 is provided integrally with the rack member 73, and the vice body 47 on one side is provided.
Is integrally provided with the above-mentioned fluid-operated cylinder 49, and the other vice main body 47 is connected via a bracket 77 connected to a piston rod 75 of the cylinder 49. Reference numeral 79 denotes a rail member, and reference numeral 81 denotes a rail member.
Is a vice body 4 that slides on the rail member 79.
Reference numeral 83 denotes a sensor for detecting the rear end of the work W.

With the above arrangement, when the cylinder 49 is operated and the piston rod 75 is projected, the bracket 7
Each vice main body 47 is opened via the switch 7. When the piston rod 75 is reduced, each vise body 47 is closed, and the work W can be clamped.

Next, although not directly related to the avoiding means 59 provided in the above-mentioned material feeding device 19, a delivery device 85 for paying out the remaining material after cutting the work W to the cutting machine 1 side of the material feeding conveyor 17 is provided. Is provided.

That is, as shown in FIG. 2, in the dispensing device 85, a bracket 87 is provided on the lower surface of the pedestal 25 of the material feeding conveyor 17, and one end of a fluid-pressure operated cylinder 89 is connected to the bracket 87. ing. A fork end 95 engaged with a piston rod 93 provided integrally with a piston 91 built in the cylinder 89 is L
One end of the shaped arm 97 is rotatably connected. The L-shaped arm 97 is attached to a bearing 99 provided on the gantry 25 by a shaft 1.
The L-shaped arm 97 has a V-shaped portion 103 formed on the other upper surface on the other side.

With the above configuration, the state shown by the solid line in the drawing of FIG.
Is reduced, the V-shaped portion 1 provided on the L-shaped arm 97 is reduced.
Reference numeral 03 denotes a state in which the work W is supported. When the piston rod 93 of the cylinder 89 is protruded and the L-shaped arm 97 is moved to the position shown by the two-dot chain line, the V-shaped portion 103 of the L-shaped arm 97 is separated from the work W supported. That is, the remaining material can be paid out.

According to the above-described configuration, the operation is to cut the last product of one work W as shown in FIGS. That is, as shown in Figure 5, the front vice workpiece W clamped by the device 15 is cut by the saw blade cutting line line K-K of the cutting machine 1 remainder W _Z comprises the Okuzai 19 Feeding vise device 27
Is clamped by the vice main body 47 of FIG.

[0044] releasing the clamp device main body 47 from this state, dispensing device remainder W _Z 85 and the pusher device 2
At 9, the feeder device 19 is retracted while the feed vise device 27 is raised by the operation of the cylinder 67 which is the avoiding means 59. As shown in FIG. 6, the retreat distance is such that the amount by which the next product length is cut off is a fixed amount determined by a parameter. Immediately after the retreat of the material feeding device 19 is started, the next work W is supplied from the material feeding device 21 to the material feeding conveyor 19.

Then, the sizing operation is started, and after the cutting is started, the workpiece W is moved by the feeding vise device 27 provided in the material feeding device 19.
The material feeding device 19 is retracted by grasping the rear end of. Then, immediately after the cutting is completed, the next length measuring operation is performed.

As described above, since the feeding vise device 27 provided in the material feeding device 19 is avoided in the upward direction by the avoiding means 59, the work W can be moved regardless of the position of the material feeding device 19 on the material feeding conveyor 17. Can be supplied. For this reason,
Since the dead space is reduced and the material feeding device 19 does not need to return to the end of the work W, the idle time in the cutting cycle time is reduced.

The present invention is not limited to the above-described embodiment of the present invention, but can be embodied in other forms by making appropriate changes.

[0048]

As will be understood from the above description of the embodiments, according to the present invention according to claims 1 and 2,
The feed vice device provided in the sizing device is avoided by the avoidance means provided in the sizing device so that the work supplied from the material supply device onto the material feeding conveyor is not hindered.

For this reason, there is no need to make the feed vise device provided in the sizing device stand by at the rearmost position of the material feeding conveyor when supplying the work. The work can be supplied from the device onto the material feeding conveyor.

Since the feed vise device does not need to return to the rear of the work, the idle time is reduced in the cutting cycle time, the dead space is reduced, and the area of the factory can be effectively used.

According to the third aspect of the present invention,
Since the feeding vise device is moved up and down by the avoidance driving means as the avoiding means, the cost can be reduced by simple components.

[Brief description of the drawings]

FIG. 1 is an enlarged plan view showing a main part of the present invention, and is a part viewed from an arrow I in FIG. 3;

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

FIG. 3 shows an example of an embodiment of the present invention,
It is a plane explanatory view of a cutting machine and a work carrying-in / out device.

FIG. 4 is an enlarged sectional explanatory view taken along the line IV-IV in FIG. 3;

FIG. 5 is an operation explanatory view.

FIG. 6 is an operation explanatory view.

FIG. 7 is an explanatory plan view showing a conventional example and showing a positional relationship between a feed vice device and a cutting machine.

FIG. 8 is an operation explanatory view in a conventional example.

FIG. 9 is an operation explanatory view in a conventional example.

FIG. 10 is an operation explanatory view in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting machine 15 Front vice device 17 Feeding conveyor 21 Feeding device 27 Feeding vice device 31 Sizing device 59 Avoidance means 69 Cylinder (avoidance drive means) 85 Discharge device W Work

Claims (3)

[Claims] 1. A cutting method in which a workpiece placed on a material feeding conveyor provided on the rear side of a cutting machine is clamped, sent to a cutting machine, and cut to perform a cutting process. (A) Behind the cutting machine (B) a feed vise device provided with a sizing device with a rear end of the work placed on the material conveyor in the work carry-in process. A cutting step of repeating the cutting process to the desired length with the cutting machine, (C) cutting the last product in the cutting step, and then discharging the remaining material, and (D) the remaining material discharging step. A feeding vise device avoiding step of, after discharging the remaining material in the remaining material discharging step, moving the feeding vise device upward to a position where there is no hindrance to loading of the work, and (E) a feeding vise in the feed vice device avoiding step. Avoiding the device upwards A retracting step of retracting the sizing device and retracting the sizing device by an amount by which the product length of the next work is cut off or by a fixed amount determined by a parameter. Processing method. 2. A feeding conveyor is provided on the rear side of the cutting machine,
A sizing device provided with a feed vise device for clamping a work placed on the material feeding conveyor is movably provided on the material feeding conveyor, and a feed vice device provided in the sizing device is provided by a feeding device. A cutting device, characterized in that the sizing device is provided with an avoiding means for avoiding the work in a range that does not hinder the supply of the work onto the material feeding conveyor. 3. The cutting apparatus according to claim 2, wherein the avoiding means includes an avoidance driving means for moving the feed vice device to an upward avoiding position in the sizing device.