JPWO2020121946A1 - Laser blanking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laser blanking apparatus capable of forming a plate material into a blank material by laser cutting and transporting only a laser-cut blank material while having a compact structure. According to the present invention, a first endless belt 1 and a second endless belt 2 serially provided for transporting a plate material X, and a first front upper inner guide roller 11 for guiding the first endless belt 1 , 1st front lower inner guide roller 12, 1st rear upper inner guide roller 13, 1st rear middle inner guide roller 14, 1st rear lower inner guide roller 15, 1st guide portion 16, and 2nd endless belt 2. 2nd front upper inner guide roller 21, 2nd front middle inner guide roller 22, 2nd front lower inner guide roller 23, 2nd rear upper inner guide roller 24, 2nd rear lower inner guide roller 25 and second 2 The guide portion 26 and the laser nozzle N arranged above the space portion S between the first endless belt 1 and the second endless belt 2 are provided, and the first rear lower inner guide roller 15 and the second front lower The inner guide roller 23 can slide in the front-rear direction, and the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 are integrated. This is a laser blanking device 100 in which the shift portion F1 is slid so as to be located directly below the laser nozzle N. [Selection diagram] Fig. 1

Description

The present invention relates to a laser blanking apparatus. More specifically, the present invention has a simple and compact structure, and can cut a plate material with a laser to make a blank material while preventing the endless belt from being damaged. Regarding ranking equipment.

In press working, generally, a blank material obtained by sequentially unwinding a long plate material wound in a coil shape and cutting it into a fixed size is used as a raw material.

In recent years, a method of cutting such a plate material by using a laser blanking device using a laser beam has been developed. According to the laser blanking apparatus, since laser light is used, there is an advantage that the plate material can be precisely cut into a desired shape and burrs are less likely to occur by programmatically controlling the movement thereof.

Such a laser blanking device includes, for example, a material transfer means for transferring a plate-shaped material in a feed direction, a processing head capable of irradiating a laser beam toward the material, and a processing head in the material feed direction and width. An upstream support means that supports the material transferred by the head moving means for moving in the direction and the material transferred by the material transfer means, and expands or contracts the support area of the material in the feed direction as the processing head moves in the feed direction. A downstream support means that supports the cut part obtained by laser cutting the material with the processing head and expands / contracts the support area of the cut part in the feed direction as the processing head moves in the feed direction. A laser cutting device is known in which the upstream support means is configured by a roller conveyor mechanism and the downstream support means is configured by a belt conveyor mechanism (see, for example, Patent Document 1). ..

Further, the laser nozzle, the endless conveyor for feeding the plate material, the pair of upstream support rollers and downstream support rollers provided below the laser nozzle, and below the upstream support rollers and downstream support rollers are provided. There is known a laser blanking device that is equipped with a pull-in roller, and the upstream support roller, the downstream support roller, and the pull-in roller guide the endless conveyor, and the positions of the laser blanking devices can be changed independently. For example, see Patent Document 2).

Japanese Patent No. 4705139 Japanese Patent No. 5916170

However, in the laser cutting apparatus described in Patent Document 1, since the tension adjusting roller moves in the vertical direction, there is a drawback that a sufficient height is required and the apparatus itself becomes large.

On the other hand, since the laser blanking apparatus described in Patent Document 2 is composed of one endless conveyor, for example, when it is desired to convey only the laser-cut blank material without conveying the long plate material. There is a risk that the plate material and the endless belt will rub against each other and the plate material will be scratched.

The present invention has been made in view of the above circumstances, and although it has a compact structure, the plate material can be made into a blank material by laser cutting, and it is also possible to convey only the laser-cut blank material. An object of the present invention is to provide a blanking device.

As a result of diligent studies to solve the above problems, the present inventors have arranged a laser nozzle between the first endless belt and the second endless belt, and predetermined the first endless belt and the second endless belt, respectively. Guided by a guide roller arranged at the position of, the shift portion composed of a specific guide roller in the guide roller is located directly under the laser nozzle, and follows the movement of the laser nozzle in the front-rear direction. We have found that the above problems can be solved by making the first rear lower inner guide roller and the second front lower inner guide roller slidable in the front-rear direction, and have completed the present invention. It was.

According to the present invention, (1) a long plate material is conveyed, the plate material is cut by a laser beam emitted from a laser nozzle, and the plate material is conveyed from the front to the rear in a laser blanking apparatus used as a blank material. The first front endless belt on the front side and the second endless belt on the rear side, which are continuously provided for this purpose, are arranged so as to be in contact with the inner side surface of the first endless belt, and the first front upper part for guiding the first endless belt. The inner guide roller, the first front lower inner guide roller, the first rear upper inner guide roller, the first rear middle inner guide roller, and the first rear lower inner guide roller are arranged so as to be in contact with the outer surface of the first endless belt. , A first guide portion for guiding the first endless belt and a second front upper inner guide roller for guiding the second endless belt, which are arranged so as to be in contact with the inner side surface of the second endless belt. 2 The front middle inner guide roller, the second front lower inner guide roller, the second rear upper inner guide roller, and the second rear lower inner guide roller are arranged so as to be in contact with the outer surface of the second endless belt. Above the space between the second guide for guiding the belt and the first endless belt guided by the first rear upper inner guide roller and the second endless belt guided by the second front upper inner guide roller. The first guide portion guides the first endless belt between the first rear middle inner guide roller and the first rear lower inner guide roller, and the first guide portion is provided with a laser nozzle arranged in the above. The second endless belt is arranged in front of the 1 rear middle inner guide roller and the 1st rear lower inner guide roller, and the 2nd guide portion is between the 2nd front middle inner guide roller and the 2nd front lower inner guide roller. The first rear lower inner guide roller and the second front lower inner guide roller are arranged behind the second front middle inner guide roller and the second front lower inner guide roller in the front-rear direction. The first rear upper inner guide roller, the first rear middle inner guide roller, the second front upper inner guide roller, and the second front middle inner guide roller are integrated to form a shift portion. Along a Y-axis shift rail extending in the front-rear direction provided on both sides of the first endless belt and the second endless belt, the first rear middle inner guide roller passes through the first endless belt to the first guide portion. The second front, middle and inner guide rollers can be slid from the position close to the second guide portion via the second endless belt, and are located directly under the laser nozzle. It exists in a laser blanking device that slides following the movement of the laser nozzle in the front-rear direction.

The present invention constitutes (2) a driven shift portion in which a first rear lower inner guide roller and a second front lower inner guide roller are integrated, and the driven shift portion is a first endless belt and a second endless belt. The laser blanking apparatus according to (1) above, which is slidable along a Y-axis driven shift rail extending in the front-rear direction provided on both sides of the above and which follows the slide of the shift portion.

The present invention further includes (3) a first tension adjusting unit for finely adjusting the tension of the first endless belt, and a second tension adjusting unit for finely adjusting the tension of the second endless belt. 2) It exists in the described laser blanking apparatus.

In the present invention, in the (4) shift portion, the first rear-middle-inner guide roller is arranged in front of the first rear-upper-inner guide roller, and the second front-middle-inner guide roller is the second rear-upper-inner guide roller. The laser blanking apparatus according to any one of (1) to (3) above, which is arranged behind the laser blanking apparatus.

In the present invention, (5) the first guide portion is composed of the first rear outer guide roller, and the second guide portion is composed of the second front outer guide roller, which is one of the above (1) to (4). It resides in the described laser blanking apparatus.

The present invention further includes (6) a sputter receiving box arranged in a space and extending in the width direction, and the sputter receiving box is equipped with a vacuum device for sucking the inside of the sputter receiving box (6). It exists in the laser blanking apparatus according to any one of 1) to (5).

The present invention further includes (7) an X-axis rail extending in the width direction of the plate material and a pair of Y-axis rails extending in the front-rear direction provided above the first endless belt and the second endless belt, and a laser. One of (1) to (6) above, in which the nozzle is guided by the X-axis rail and slidable, and the X-axis rail is guided by the Y-axis rail and slidable. It exists in the laser blanking apparatus described in.

In the laser blanking apparatus of the present invention, the laser nozzle is arranged above the space between the first endless belt and the second endless belt, and the first endless belt and the second endless belt are defined respectively. The guide roller arranged at the position of is used to guide the laser nozzle, and the shift portion having the space portion in which the specific guide roller is integrated is slid according to the movement of the laser nozzle in the front-rear direction. Therefore, the laser nozzle itself can be largely moved back and forth to perform laser processing. That is, the area where laser machining is possible can be greatly expanded, which makes it possible to improve the transport speed of the plate material.
Further, it is possible to prevent the first endless belt and the second endless belt from being damaged by the laser beam at the time of laser cutting.

In the laser blanking apparatus of the present invention, by disposing a sputter receiving box extending in the width direction below the space, spatter and fine dust generated by laser cutting can be recovered.
Further, by attaching a vacuum device for sucking the inside of the spatter receiving box to the sputter receiving box, the efficiency of recovery is improved.

In the laser blanking apparatus of the present invention, since the first endless belt and the second endless belt are connected in series, the plate material can be conveyed by the first endless belt and laser-cut by the second endless belt. The blank material can be transported. This makes it possible, for example, to transport only the laser-cut blank material without transporting the plate material.

In the laser blanking apparatus of the present invention, the first rear lower inner guide roller and the second front lower inner guide roller are slidable, so that even when the shift portion slides, the first rear lower inner guide roller is slidable. By sliding the guide roller and the second front lower inner guide roller, the tensions of the corresponding first endless belt and second endless belt can be adjusted.
At this time, by sliding the first rear lower inner guide roller and the second front lower inner guide roller in the front-rear direction, the height is not required, so that the device itself can be made compact.

In the laser blanking apparatus of the present invention, by forming a driven shift portion in which the first rear lower inner guide roller and the second front lower inner guide roller are integrated, the first rear lower inner guide roller and the second front lower inner guide roller are formed. The inner guide rollers are in a synchronized state, and both can be slid at the same time.
Further, by making the driven shift portion follow the slide of the shift portion, the tensions of the first endless belt and the second endless belt are less likely to fluctuate even when the shift portion is slid, and stable transportation becomes possible. It also becomes easy to adjust.
By the way, in the laser cutting apparatus described in Patent Document 1, since it is necessary to pull in the vertical direction, the tension tends to fluctuate every time the shift operation is performed.
At this time, it is preferable to further include a first tension adjusting unit and a second tension adjusting unit. In this case, it is also possible to fine-tune the tension of the corresponding endless belt.

In the laser blanking apparatus of the present invention, the first rear middle inner guide roller is arranged in front of the first rear upper inner guide roller, and the second front middle inner guide roller is from the second rear upper inner guide roller. When the first endless belt and the second endless belt are arranged rearward, the space becomes wider toward the lower side, so that the damage to the first endless belt and the second endless belt by the laser beam can be further suppressed. The laser beam that has passed below the plate material tends to spread radially.

In the laser blanking apparatus of the present invention, when the first guide portion is composed of the first rear outer guide roller and the second guide portion is composed of the second front outer guide roller, the structure is simple but corresponding. The first endless belt and the second endless belt can be guided smoothly.

In the laser blanking apparatus of the present invention, the laser nozzle is guided by the X-axis rail and slidable, and the X-axis rail is guided by the Y-axis rail and slidable. By making full use of them in combination, it is possible to move the laser nozzle in all directions such as the front-back direction (the direction in which the plate material is conveyed and the opposite direction), the left-right direction (the width direction of the plate material), the diagonal direction, and the curved direction. .. As a result, it is possible to perform laser processing on the conveyed plate material into a complicated shape.

FIG. 1 is a perspective view showing an example of a laser blanking apparatus according to the present invention. FIG. 2 is a schematic side view for explaining the configuration of the laser blanking apparatus shown in FIG. FIG. 3A is a cross-sectional view taken along the line AA of FIG. FIG. 3B is a cross-sectional view taken along the line BB of FIG. It is a schematic side view for demonstrating the relationship between the shift part and the driven shift part in the laser blanking apparatus which concerns on this embodiment. FIG. 5 is a perspective view for explaining a state in which the shift portion is slid along the Y-axis shift rail in the laser blanking apparatus according to the present embodiment. FIG. 6A is a schematic plan view showing an example of laser processing a plate material using the laser blanking apparatus according to the present embodiment. FIG. 6B is a schematic plan view showing another example in which the plate material is laser-machined using the laser blanking apparatus according to the present embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. Further, unless otherwise specified, the positional relationship such as up, down, left, and right shall be based on the positional relationship shown in the drawings. Furthermore, the dimensional ratios in the drawings are not limited to the ratios shown.

FIG. 1 is a perspective view showing an example of a laser blanking apparatus according to the present invention, and FIG. 2 is a schematic side view for explaining a configuration of the laser blanking apparatus shown in FIG. Note that the description of the plate material is omitted in FIG. 1, and the description of the timing belt T and the like, which will be described later, is omitted in FIG.
As shown in FIGS. 1 and 2, in the laser blanking apparatus 100 according to the present embodiment, a first endless belt 1 and a second endless belt 2 are connected in series. Therefore, for example, a long plate material X wound in a coil shape is conveyed by the first endless belt 1 while being sequentially pulled out from the end portion, and the plate material X is subjected to laser light emitted from the laser nozzle N of the laser apparatus. A blank material (not shown) having a desired shape can be cut to obtain the blank material, and the blank material can be conveyed by the second endless belt 2.
This makes it possible, for example, to transport only the laser-cut blank material without transporting the plate material. During operation, the plate material is repeatedly operated by continuous operation or intermittent operation, cut by laser light, and the blank material is conveyed repeatedly.

Here, the type of laser light is not particularly limited, and for example, a solid-state laser, a liquid laser, a gas laser, a semiconductor laser, a free electron laser, a metal steam laser, a chemical laser, or the like can be used.
Further, the plate material may be not only a metal such as iron, aluminum, titanium and magnesium, but also glass, ceramics, resin, a composite material thereof and the like as long as it is cut by a laser beam.
According to the laser blanking apparatus of the present invention, laser processing is performed while transporting the plate material, so that the cutting efficiency is high and the productivity is excellent.

The laser blanking device 100 includes a first endless belt 1 on the front side and a second endless belt 2 on the rear side, and a first endless belt 1 and a second endless belt, which are continuously provided to convey the plate material X from the front to the rear. A plurality of guide rollers for guiding 2 and a laser nozzle N arranged above the space S between the first endless belt 1 and the second endless belt 2 and the tension of the first endless belt 1 are slightly reduced. A first tension adjusting portion 3a for adjusting, a second tension adjusting portion 3b for finely adjusting the tension of the second endless belt 2, and a spatter receiving box 4 arranged in the space portion S extending in the width direction. To be equipped with.
In the present specification, the guide roller is supported by a fixed frame unless otherwise specified.

In the laser blanking apparatus 100, the first endless belt 1 and the second endless belt 2 are both guided from the front to the upper side, from the upper side to the rear side, from the rear side to the lower side, and from the lower side to the front side. It has become like.
In the present specification, the "front side" or "front side" means the upstream side (left side of the paper surface in FIG. 2) in the transport direction of the plate material X, and the "rear side" or "rear side" means. It means the downstream side (the right side of the paper surface in FIG. 2) in the transport direction of the plate material X. Further, the "front-back direction" means the transport direction of the plate material X and the opposite direction.

The guide roller for guiding the first endless belt 1 has a cylindrical shape, and is an inner guide roller arranged so as to be in contact with the inner side surface of the first endless belt 1 in order to guide the first endless belt 1 upward from the front. The first front upper inner guide roller 11 and the first front lower inner guide roller 12 for guiding the first endless belt 1 from the lower side to the front, and the first front lower inner guide roller 12 for guiding the first endless belt 1 from the upper side to the rear. 1 Rear upper inner guide roller 13 and a first rear lower inner guide roller 15 for guiding the first endless belt 1 downward from the rear, and in the vertical direction, the first rear upper inner guide roller 13 and the first rear lower It has a first rear-middle-inner guide roller 14 located between the inner guide roller 15.
Further, as an outer guide portion arranged so as to be in contact with the outer surface of the first endless belt 1, the first endless belt 1 is guided between the first rear middle inner guide roller 14 and the first rear lower inner guide roller 15. It has a first guide portion 16 and a first tension adjusting portion 3a for finely adjusting the tension of the first endless belt 1 between the first front upper inner guide roller 11 and the first front lower inner guide roller 12.
That is, any points on the first endless belt 1 are the first front upper inner guide roller 11, the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the first guide portion 16, and the first rear. The lower inner guide roller 15, the first front lower inner guide roller 12, and the first tension adjusting portion 3a are guided in this order.

Here, a group consisting of a first front upper inner guide roller 11, a first front lower inner guide roller 12, a first rear upper inner guide roller 13, a first rear middle inner guide roller 14, and a first rear lower inner guide roller 15. At least one selected from the above is a so-called drive roller for rotating the first endless belt 1.
By the way, in the laser blanking apparatus 100 according to the present embodiment, the first front lower inner guide roller 12 is a drive roller, the first front upper inner guide roller 11, the first rear upper inner guide roller 13, and the first. 1 The rear middle inner guide roller 14 and the first rear lower inner guide roller 15 are driven rollers.
Further, the drive roller is driven by the servomotor S1 (see FIG. 1).

On the other hand, the guide roller for guiding the second endless belt 2 has a cylindrical shape, and guides the second endless belt 2 upward from the front as an inner guide roller arranged so as to be in contact with the inner side surface of the second endless belt 2. The second front upper inner guide roller 21 for guiding the second front upper inner guide roller 21 and the second front lower inner guide roller 23 for guiding the second endless belt 2 from the lower side to the front, and the second front upper inner guide roller 21 in the vertical direction. A second front middle inner guide roller 22 located between the second front lower inner guide roller 23, a second rear upper inner guide roller 24 for guiding the second endless belt 2 from above to the rear, and a second It has a second rear lower inner guide roller 25 for guiding the endless belt 2 from the rear to the lower side.

Further, as an outer guide portion arranged so as to be in contact with the outer surface of the second endless belt 2, the second endless belt 2 is guided between the second front middle inner guide roller 22 and the second front lower inner guide roller 23. It has a second guide portion 26 and a second tension adjusting portion 3b for finely adjusting the tension of the second endless belt 2 between the second rear upper inner guide roller 24 and the second rear lower inner guide roller 25.
That is, any point on the second endless belt 2 includes a second front upper inner guide roller 21, a second rear upper inner guide roller 24, a second tension adjusting portion 3b, a second rear lower inner guide roller 25, and a second. The front lower inner guide roller 23, the second guide portion 26, and the second front middle inner guide roller 22 are guided in this order.

Here, a group consisting of a second front upper inner guide roller 21, a second front middle inner guide roller 22, a second front lower inner guide roller 23, a second rear upper inner guide roller 24, and a second rear lower inner guide roller 25. At least one selected from the above is a so-called drive roller for rotating the second endless belt 2.
By the way, in the laser blanking device 100 according to the present embodiment, the second rear lower inner guide roller 25 is a drive roller, and the second front upper inner guide roller 21, the second front middle inner guide roller 22, and the second 2 The front lower inner guide roller 23 and the second rear upper inner guide roller 24 are driven rollers.

In the laser blanking apparatus 100, the first endless belt 1 and the second endless belt 2 can be driven independently of each other. For this reason, since the first endless belt 1 and the second endless belt 2 are connected in series, the plate material can be conveyed by the first endless belt 1 and the blank material laser-cut by the second endless belt 2 can be used. Can be transported. As a result, for example, it is possible to transport only the laser-cut blank material without transporting the plate material X. In normal operation, that is, when the plate material X is repeatedly transported by continuous operation or intermittent operation, cutting by laser light, and transporting the blank material, the first endless belt 1 and the second endless belt 2 are used. It will be driven synchronously.

In the laser blanking apparatus 100, both ends of the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 are , It is attached and fixed to a pair of rectangular plate-shaped shift plate frames 41. That is, the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 are integrated via the shift portion plate frame 41. It constitutes the shift portion F1 which has become.

The shift portion F1 includes a first endless belt 1 guided by a first rear upper inner guide roller 13 and a first rear middle inner guide roller 14, a second front upper inner guide roller 21, and a second front middle inner guide roller 22. It has a space portion S between it and the second endless belt 2 for guiding.
Further, the space portion S is provided in the entire width direction, and the sputtering receiving box 4 described later can be arranged.
As described above, the laser nozzle N is arranged above the space S.

At this time, in the shift portion F1, the first rear middle inner guide roller 14 is arranged forward in the front-rear direction with respect to the first rear upper inner guide roller 13, and the second front middle inner guide roller 22 is the second rear upper. It is arranged behind the inner guide roller 21 in the front-rear direction. In this case, the position in the vertical direction does not matter. That is, the first endless belt 1 and the second endless belt 1 have an inverted V shape in a side view (see FIG. 2). As described above, in the laser blanking apparatus 100, the space portion S of the shift portion F1 becomes wider as it goes downward, so that the first endless belt 1 and the second endless belt 2 pass through the laser beam passing region. Since it comes off, it can be more suppressed from being damaged by the laser beam.

In the shift portion F1, the positions of the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 are independently finely adjusted. Is possible. That is, these guide rollers are independently moved in the front-rear direction, up-down direction, diagonal direction, etc. according to the thickness of the plate material, the intensity of the laser beam, the size of the sputtering receiving box 4 described later, and the like, and are used for the shift portion. It can be attached to the board frame 41.
Further, the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 can change the angle of the axial center. ing. As a result, if the guiding endless belt meanders, it can be adjusted to return to the original position.

In the laser blanking apparatus 100, Y-axis shift rails YS extending in the front-rear direction are provided on both sides of the first endless belt 1 and the second endless belt 2.
FIG. 3A is a cross-sectional view taken along the line AA of FIG. The description of the spatter receiving box 4 is omitted.
As shown in FIG. 3A, in the laser blanking apparatus 100, the arm portions a1 so as to project outward from the shift portion plate frame 41 on each of the (pair) shift portion plate frames 41 on both sides. Is attached and fixed.
Then, the plate frame 41 for the shift portion is attached to the Y-axis shift rail YS attached to the fixed frame via the bearing b1 attached to the arm portion a1, and is attached along the Y-axis shift rail YS ( It is slidable (in the vertical direction of the paper).
That is, the shift portion F1 in which the first rear upper inner guide roller 13, the first rear middle inner guide roller 14, the second front upper inner guide roller 21, and the second front middle inner guide roller 22 are integrated is Y-axis shifted. It is slidable along the rail YS.
The first front upper inner guide roller 11, the first front lower inner guide roller 12, the first guide portion 16, the second rear upper inner guide roller 24, the second rear lower inner guide roller 25, and the second guide portion 26 are , As mentioned above, it is fixed to the fixed frame and does not move.

Returning to FIG. 2, in the laser blanking apparatus 100, the first rear lower inner guide roller 15 and the second front lower inner guide roller 23 are both attached to a plate frame 42 for a driven shift portion having a pair of both ends. It is fixed. That is, the first rear lower inner guide roller 15 and the second front lower inner guide roller 23 form an integrated driven shift portion F2 via the plate frame 42 for the driven shift portion.

In the laser blanking apparatus 100, Y-axis driven shift rails YJ extending in the front-rear direction are provided on both sides of the first endless belt 1 and the second endless belt 2.
FIG. 3B is a cross-sectional view taken along the line BB of FIG.
As shown in FIG. 3B, in the laser blanking apparatus 100, the plate frames 42 for the driven shift portions on both sides are L-shaped extending outward in a cross-sectional view.
The plate frames 42 for the driven shift portions on both sides are attached to the Y-axis driven shift rail YJ attached to the fixed frame via the bearing b2, and slide along the Y-axis driven shift rail YJ. It is possible.

As described above, in the laser blanking apparatus 100, the first rear lower inner guide roller 15 and the second front lower inner guide roller 23, which are the driven shift portions F2, slide in the front-rear direction along the Y-axis driven shift rail YJ. (See Fig. 2). Therefore, the laser blanking device 100 does not require a height, so that the device itself can be made compact.
Further, since the first rear lower inner guide roller 15 and the second front lower inner guide roller 23 are integrated via the plate frame 42 for the driven shift portion, they can be slid at the same time in a synchronized state. As a result, the tensions of the first endless belt 1 and the second endless belt 2 are less likely to fluctuate, and stable transportation is possible.

In the laser blanking apparatus 100, the shift portion F1 and the driven shift portion F2 are connected by timing belts T arranged on both sides of the first endless belt 1 and the second endless belt 2 (see FIG. 1).
FIG. 4 is a schematic side view for explaining the relationship between the shift portion and the driven shift portion in the laser blanking apparatus according to the present embodiment. In FIG. 4, the description other than the timing belt T and the like as shown in FIG. 2 is omitted.
As shown in FIG. 4, in the laser blanking apparatus 100, one end of the shift portion F1 and one end of the driven shift portion F2 are connected by a timing belt T, and the other end of the shift portion F1 and the driven shift portion F2 The other end is connected by a timing belt T. That is, the shift portion F1, the driven shift portion F2, and the timing belt T are annular in the side view, and are guided by a plurality of timing belt guide rollers 61 arranged in the front and rear in the endless belt. It has become. The timing belt T is arranged on both sides of the first endless belt 1 and the second endless belt 2.
The plurality of timing belt guide rollers 61 on the front side and the plurality of timing belt guide rollers 61 on the rear side are integrated as a group, and by moving one of them in the horizontal direction, the timing belt T It is possible to adjust the tension of.

Here, at least one of the plurality of timing belt guide rollers 61 is a so-called drive roller for rotating the timing belt T.
Incidentally, in the laser blanking apparatus 100 according to the present embodiment, the lowermost timing belt guide roller 61 on the front side and the lowermost timing belt guide roller 61 on the rear side are drive rollers.
Further, these drive rollers are driven by the servomotor S2 (see FIG. 1).

In the laser blanking device 100, since the shift portion F1 and the driven shift portion F2 are connected by the timing belt T, the driven shift portion F2 moves in the opposite direction in accordance with the movement of the shift portion F1 in one direction. It is designed to do. That is, the driven shift portion F2 is adapted to slide along the Y-axis shift rail YS of the shift portion F1.
Specifically, when the shift portion F1 (shift portion plate frame 41) slides forward along the Y-axis shift rail YS, the driven shift portion F2 (driven shift portion plate frame 42) is Y-axis driven. When the shift portion F1 slides backward along the shift rail YJ and the shift portion F1 slides backward along the Y-axis shift rail YS, the driven shift portion F2 slides forward along the Y-axis driven shift rail YJ. It is designed to do. As a result, the timing belt T assists the driven operation of the driven shift portion F2, so that the followability of the driven shift portion F2 to the shift portion F1 can be further improved. As a result, the tensions of the first endless belt 1 and the second endless belt 2 are less likely to fluctuate, and stable transport operation is possible.

Returning to FIG. 2, in the laser blanking apparatus 100, the first guide portion 16 is composed of a cylindrical guide roller (hereinafter, also referred to as “first rear outer guide roller”), and the second guide portion 26 is cylindrical. (Hereinafter, also referred to as "second front / outer guide roller"). As described above, since both the first guide portion 16 and the second guide portion 26 are composed of guide rollers, the corresponding endless belt can be smoothly guided while the structure is simple.

Here, the first rear outer guide roller 16 guides the first endless belt 1 between the first rear middle inner guide roller 14 and the first rear lower inner guide roller 15, and the first endless belt. In order to give sufficient tension to 1, it is arranged in front of the first rear middle inner guide roller 14 and the first rear lower inner guide roller 15.
Similarly, the second front-outer guide roller 26 guides the second endless belt 2 between the second front-middle-inner guide roller 22 and the second front-lower inner guide roller 23, and the second endless belt. In order to give sufficient tension to 2, the second front middle inner guide roller 22 and the second front lower inner guide roller 23 are arranged behind.

Therefore, the first rear-middle-inner guide roller 14 of the shift portion F1 does not move forward of the first rear-outer-outer guide roller 16, and the second front-middle-inner guide roller 22 of the shift portion F1 is It is designed so that it does not move behind the second front outer guide roller 26. That is, in the laser blanking apparatus 100, the range of motion of the shift portion F1 is between the first rear outer guide roller 16 and the second front outer guide roller 26.

FIG. 5 is a perspective view for explaining a state in which the shift portion is slid along the Y-axis shift rail in the laser blanking apparatus according to the present embodiment. The upper side is a perspective view from the front direction, and the lower side is a perspective view from a little front. The description related to the laser nozzle is omitted.
As shown in FIG. 5, in the laser blanking apparatus 100, when the shift portion F1 is slid forward along the Y-axis shift rail YS (state of the upper laser blanking apparatus in FIG. 5), the first 1 The rear-middle-inner guide roller 14 can slide to a position close to the first guide portion 16 via the first endless belt 1.
On the other hand, when the shift portion F1 is slid rearward along the Y-axis shift rail YS (state of the lower laser blanking device in FIG. 5), the second front, middle, and inner guide rollers 22 are second endless. It is slidable to a position close to the second guide portion 26 via the belt 2.

Here, since the shift portion F1 has the space portion S (see FIG. 1) as described above, the space portion S is located below the laser nozzle N in the front-rear direction of the laser nozzle N. Moves following the movement to. Since the space portion S of the shift portion F1 is provided in the entire width direction of the plate material as described above, it does not follow the movement of the laser nozzle N in the width direction of the plate material.
As described above, the driven shift portion F2 is adapted to slide along the Y-axis shift rail YS of the shift portion F1.

Returning to FIG. 2, in the laser blanking apparatus 100, the first tension adjusting unit 3a is composed of a cylindrical guide roller, and the second tension adjusting unit 3b is composed of a cylindrical guide roller. As described above, since both the first tension adjusting unit 3a and the second tension adjusting unit 3b are composed of guide rollers, they are easy to install and do not interfere with the rotation of the corresponding endless belt.

Here, the first tension adjusting unit 3a guides the first endless belt 1 between the first front upper inner guide roller 11 and the first front lower inner guide roller 12, and the first endless belt 1 In order to adjust the tension of the belt, it can be moved back and forth while being in contact with the outside of the first endless belt 1.
Similarly, the second tension adjusting unit 3b guides the second endless belt 2 between the second rear upper inner guide roller 24 and the second rear lower inner guide roller 25, and the second endless belt 2 In order to adjust the tension of the belt, it can be moved back and forth while being in contact with the outside of the second endless belt 2.

As a result, in the laser blanking apparatus 100, the tensions of the corresponding first endless belt 1 and the second endless belt 2 can be easily finely adjusted. That is, when the shift portion F1 is slid in the laser blanking apparatus 100, the tension of the first endless belt 1 and the second endless belt 2 is increased by sliding the driven shift portion F2 as described above. Adjustments can be made. In addition to this, when a tension difference occurs between the first endless belt 1 and the second endless belt 2, these tension adjusting portions finely adjust the tension of the corresponding endless belt to make the first one. The difference in tension between the endless belt 1 and the second endless belt 2 can be eliminated.

In the laser blanking apparatus 100, the sputter receiving box 4 is arranged in the space portion S of the shift portion F1.
The sputter receiving box 4 has a box shape having an opening at the upper side, and has a structure in which at least the opening extends in the width direction of the plate material X.
As a result, in the laser blanking apparatus 100, spatter and fine dust generated by laser cutting are collected in the sputter receiving box 4 from the opening. As a result, in the laser blanking apparatus 100, it is possible to prevent spatter and fine dust from adhering to the endless belt.

At this time, a suction opening is provided on the side wall of the sputtering receiving box 4, and a vacuum device (not shown) for sucking the inside of the sputtering receiving box 4 is attached to the suction opening. .. Therefore, spatter and fine dust generated by laser cutting are positively housed in the spatter receiving box 4.
As a result, in the laser blanking apparatus 100, it is possible to further suppress the adhesion of spatter and fine dust to the endless belt, and it is possible to further improve the efficiency of collecting these.

Returning to FIG. 1, the laser blanking device 100 includes an X-axis rail 52 extending in the width direction of the plate material X provided above the first endless belt 1 and the second endless belt 2, and a pair extending in the front-rear direction. A Y-axis rail 51 is further provided.
The pair of Y-axis rails 51 are fixed to the fixed frame described above, and both ends of the X-axis rail 52 are attached to the Y-axis rail 51.
Further, the laser nozzle N is attached to the X-axis rail 52.

In the laser blanking device 100, the laser nozzle N is guided by the X-axis rail 52 and slidable, and the X-axis rail 52 is guided by the Y-axis rail 51 and slidable. ..
Therefore, in the laser blanking apparatus 100, by controlling the program by combining these, the laser nozzle N can be moved in all directions such as the front-rear direction, the left-right direction, the oblique direction, and the curved direction with respect to the plate material X to be conveyed. It can be slid. As a result, it becomes possible to perform laser processing on the conveyed plate material into a complicated shape.

As described above, in the laser blanking apparatus 100, the laser processing by the laser nozzle N is performed above the space portion S.
At this time, the shift portion S slides following the sliding of the laser nozzle N in the front-rear direction so that the space portion S is located directly below the laser nozzle N.
This makes it possible to perform laser processing by sliding the laser nozzle N itself back and forth. That is, the area where laser machining is possible can be greatly expanded, which makes it possible to improve the transport speed of the plate material.
Further, it is possible to prevent the first endless belt 1 and the second endless belt 2 from being damaged by the laser beam at the time of laser cutting. That is, since the space portion S for escape is formed directly under the plate material X, the endless belt is out of the passage region of the laser beam, so that it is possible to suppress damage caused by the laser beam.

Next, a processing method using the laser blanking apparatus 100 will be described with an example.
FIG. 6A is a schematic plan view showing an example of laser processing a plate material using the laser blanking apparatus according to the present embodiment. In the case of this example, since the X-axis rail 52 does not slide along the Y-axis rail 51, the shift portion F1 also does not slide along the Y-axis shift rail YS.

First, as shown in FIG. 6A, in the laser blanking apparatus 100, the flat plate-shaped plate material X unwound from the coil or the like is continuously conveyed by the first endless belt 1.
Then, while irradiating the laser beam, the laser nozzle N is guided by the X-axis rail 52 and slides in the direction of the arrow A1. Then, the plate material X is cut in the oblique direction. The space portion S does not move.

Next, the laser nozzle N slides along the X-axis rail 52 in the opposite direction of the arrow A2 while continuously irradiating the laser beam. Then, the plate material X is cut into a dogleg shape. The space portion S does not move.
As a result, a triangular blank material in which the plate material X is cut in the diagonal direction and the reverse diagonal direction is obtained, and this is conveyed by the second endless belt 2.

FIG. 6B is a schematic plan view showing another example in which the plate material is laser-machined using the laser blanking apparatus according to the present embodiment. In the case of this example, since the X-axis rail 52 slides along the Y-axis rail 51, the shift portion F1 follows this and slides along the Y-axis shift rail YS, resulting in a driven shift. The portion F2 slides along the Y-axis driven shift rail YJ so as to be driven by the shift portion F1.

First, as shown in FIG. 6B, in the laser blanking apparatus 100, the flat plate-shaped plate material X unwound from the coil or the like is continuously conveyed by the first endless belt 1.
Then, while irradiating the laser beam, the laser nozzle N is guided by the X-axis rail 52 and slides in the direction of the arrow A1, and the X-axis rail 52 is guided by the Y-axis rail 51 in the direction of the arrow B1. Sliding. At this time, it is assumed that the X-axis rail 52 slides at the same speed as the first endless belt 1. Then, the plate material X is cut in the vertical direction. The space portion S moves following the movement of the X-axis rail 52.

Next, the irradiation of the laser beam is stopped, the laser nozzle N is guided by the X-axis rail 52 and slides in the direction of the opposite arrow A2, and the X-axis rail 52 is guided by the Y-axis rail 51 in the opposite direction. It slides in the direction of arrow B2. Then, the laser nozzle N and the X-axis rail 52 return to their original positions. The space portion S moves following the movement of the X-axis rail 52.
As a result, a rectangular blank material in which the plate material X is cut in the vertical direction is obtained, and this is then conveyed by the second endless belt 2.

In the processing method using the laser blanking apparatus 100 according to the present embodiment, the laser beam is irradiated to the plate material X while sliding the laser nozzle N, so that the plate material X is conveyed without causing a displacement. The plate material X can be laser-processed into a desired shape.
Further, by sliding the shift portion F1 so as to follow the sliding of the laser nozzle N, it is possible to prevent the first endless belt 1 or the second endless belt 2 from being damaged by the laser beam.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment.

In the laser blanking apparatus 100 according to the present embodiment, in the shift portion F1, the first rear-middle-inner guide roller 14 is arranged in front of the first rear-upper-inner guide roller 13 in the front-rear direction, and the second front-middle-inner guide is provided. The roller 22 is arranged rearward in the front-rear direction with respect to the second rear upper inner guide roller 21, but is not limited to this.
For example, in the shift portion F1, the first rear middle inner guide roller 14 and the first rear upper inner guide roller 13 are arranged at the same position in the front-rear direction, and the second front middle inner guide roller 22 and the second rear upper inner guide roller 22 are arranged. The rollers 21 and the rollers 21 may be arranged at the same position in the front-rear direction.

In the laser blanking apparatus 100 according to the present embodiment, the shift portion plate frame 41 is attached to the Y-axis shift rail YS via the bearing b1 attached to the arm portion a1, but the shift portion F1 is Y. The structure is not limited to this as long as it can slide along the shaft shift rail YS.
Similarly, the plate frame 42 for the driven shift portion is attached to the Y-axis driven shift rail YJ via the bearing b2, but the driven shift portion F2 may be slidable along the Y-axis driven shift rail YJ. For example, the structure is not limited to this.

In the laser blanking apparatus 100 according to the present embodiment, the first guide portion 16 is composed of a cylindrical guide roller (first rear outer guide roller 16), and the second guide portion 26 is a cylindrical guide roller (first rear outer guide roller 16). 2 It is composed of a front outer guide roller 26), but is not limited to this as long as it is in contact with the outside of the corresponding endless belt and can guide the endless belt.
For example, the first guide portion 16 and the second guide portion 26 may be U-shaped fixed guide plates or the like in a side view, respectively.
Further, the first guide unit 16 and the second guide unit 26 may each be composed of a plurality of guide rollers.

In the laser blanking apparatus 100 according to the present embodiment, the first tension adjusting unit 3a is composed of a cylindrical guide roller, and the second tension adjusting unit 3b is composed of a cylindrical guide roller. It is not limited to this as long as the tension of the belt can be adjusted.
For example, the tension may be adjusted by making any of the above-mentioned guide rollers slidable without providing the first tension adjusting unit 3a and the second tension adjusting unit 3b and sliding the guide roller.

The present invention is used as a laser blanking apparatus that laser-cuts a plate material into a desired shape and uses it as a blank material. According to the laser blanking apparatus of the present invention, although the plate material has a compact structure, the plate material can be made into a blank material by laser cutting, and only the laser-cut blank material can be conveyed.

1 ... 1st endless belt 100 ... Laser blanking device 11 ... 1st front upper inner guide roller 12 ... 1st front lower inner guide roller 13 ... 1st rear upper inner guide roller 14・ ・ ・ 1st rear middle inner guide roller 15 ・ ・ ・ 1st rear lower inner guide roller 16 ・ ・ ・ 1st guide part (1st rear outer guide roller)
2 ... 2nd endless belt 21 ... 2nd front upper inner guide roller 22 ... 2nd front middle inner guide roller 23 ... 2nd front lower inner guide roller 24 ... 2nd rear upper inner Guide roller 25 ・ ・ ・ 2nd rear lower inner guide roller 26 ・ ・ ・ 2nd guide (2nd front outer guide roller)
3a ・ ・ ・ 1st tension adjusting part 3b ・ ・ ・ 2nd tension adjusting part 4 ・ ・ ・ Spatter receiving box 41 ・ ・ ・ Plate frame for shift part 42 ・ ・ ・ Plate frame for driven shift part 51 ・ ・ ・ Y axis Rail 52 ... X-axis rail 61 ... Timing belt guide roller a1 ... Arm part b1 ... Bearing F1 ... Shift part F2 ... Driven shift part N ... Laser nozzle S ...・ Space S1, S2 ・ ・ ・ Servo motor T ・ ・ ・ Timing belt YJ ・ ・ ・ Y-axis driven shift rail YS ・ ・ ・ Y-axis shift rail X ・ ・ ・ Plate material

According to the present invention, (1) a long plate material is conveyed, the plate material is cut by a laser beam emitted from a laser nozzle, and the plate material is conveyed from the front to the rear in a laser blanking apparatus used as a blank material. The first front endless belt on the front side and the second endless belt on the rear side, which are continuously provided for this purpose, are arranged so as to be in contact with the inner side surface of the first endless belt, and the first front upper part for guiding the first endless belt. The inner guide roller, the first front lower inner guide roller, the first rear upper inner guide roller, the first rear middle inner guide roller, and the first rear lower inner guide roller are arranged so as to be in contact with the outer surface of the first endless belt. , A first guide portion for guiding the first endless belt and a second front upper inner guide roller for guiding the second endless belt, which are arranged so as to be in contact with the inner side surface of the second endless belt. 2 The front middle inner guide roller, the second front lower inner guide roller, the second rear upper inner guide roller, and the second rear lower inner guide roller are arranged so as to be in contact with the outer surface of the second endless belt. Above the space between the second guide for guiding the belt and the first endless belt guided by the first rear upper inner guide roller and the second endless belt guided by the second front upper inner guide roller. The first guide portion guides the first endless belt between the first rear middle inner guide roller and the first rear lower inner guide roller, and the first guide portion is provided with a laser nozzle arranged in the above. The second endless belt is arranged in front of the 1 rear middle inner guide roller and the 1st rear lower inner guide roller, and the 2nd guide portion is between the 2nd front middle inner guide roller and the 2nd front lower inner guide roller. The first rear lower inner guide roller and the second front lower inner guide roller are arranged behind the second front middle inner guide roller and the second front lower inner guide roller in the front-rear direction. The first front lower inner guide roller is fixed, the first rear upper inner guide roller, the first rear middle inner guide roller, the second front upper inner guide roller, and the second front middle inner guide roller. A shift portion having an integrated space portion is formed, and the shift portion is a first along a Y-axis shift rail extending in the front-rear direction provided on both sides of the first endless belt and the second endless belt. From the position where the rear middle inner guide roller is close to the first guide portion via the first endless belt to the position where the second front middle inner guide roller is close to the second guide portion via the second endless belt. slidable, and so as to be positioned below the laser nozzle slides to follow the movement in the longitudinal direction of the laser nozzle, after the first The lower inner guide roller and the second front lower inner guide roller form an integrated driven shift portion, and the driven shift portion extends in the front-rear direction provided on both sides of the first endless belt and the second endless belt. A laser blanking device that is slidable along a Y-axis driven shift rail and that follows the slide of the shift portion and moves in the direction opposite to the movement of the shift portion .

The present invention further comprises ( 2 ) a first tension adjusting unit for finely adjusting the tension of the first endless belt, and a second tension adjusting unit for finely adjusting the tension of the second endless belt ( 2 ). 1 ) It exists in the laser blanking apparatus described.

In the present invention, in the ( 3 ) shift portion, the first rear middle inner guide roller is arranged in front of the first rear upper inner guide roller, and the second front middle inner guide roller is the second rear upper inner guide roller. It exists in the laser blanking apparatus according to (1) or (2) above, which is arranged behind.

In the present invention, ( 4 ) the first guide portion is composed of the first rear outer guide roller, and the second guide portion is composed of the second front outer guide roller, which is one of the above (1) to ( 3 ). It resides in the described laser blanking apparatus.

The present invention further includes ( 5 ) a sputter receiving box arranged in a space and extending in the width direction, and the sputter receiving box is equipped with a vacuum device for sucking the inside of the sputter receiving box ( 5 ). 1) The laser blanking apparatus according to any one of ( 4 ).

The present invention further includes ( 6 ) an X-axis rail extending in the width direction of the plate material and a pair of Y-axis rails extending in the front-rear direction provided above the first endless belt and the second endless belt, and a laser. One of (1) to ( 5 ) above, in which the nozzle is guided by the X-axis rail and slidable, and the X-axis rail is guided by the Y-axis rail and slidable. It exists in the laser blanking apparatus described in.

Claims (7)

In a laser blanking device that cuts a long plate material with a laser beam emitted from a laser nozzle to make a blank material while transporting the plate material.
The first endless belt on the front side and the second endless belt on the rear side, which are continuously provided to convey the plate material from the front to the rear,
A first front upper inner guide roller, a first front lower inner guide roller, a first rear upper inner guide roller, and a first rear upper inner guide roller, which are arranged so as to be in contact with the inner side surface of the first endless belt and guide the first endless belt. 1 Rear middle inner guide roller and 1st rear lower inner guide roller,
A first guide portion arranged so as to be in contact with the outer surface of the first endless belt and for guiding the first endless belt,
A second front upper inner guide roller, a second front middle inner guide roller, a second front lower inner guide roller, and a second front upper inner guide roller for guiding the second endless belt, which are arranged so as to be in contact with the inner side surface of the second endless belt. 2 Rear upper inner guide roller and 2nd rear lower inner guide roller
A second guide portion arranged so as to be in contact with the outer surface of the second endless belt and for guiding the second endless belt,
The laser nozzle arranged above the space between the first endless belt guided by the first rear upper inner guide roller and the second endless belt guided by the second front upper inner guide roller. When,
With
The first guide portion guides the first endless belt between the first rear middle inner guide roller and the first rear lower inner guide roller, and the first rear middle inner guide roller and the guide roller. It is arranged in front of the first rear lower inner guide roller.
The second guide portion guides the second endless belt between the second front, middle and inner guide rollers and the second front, lower and inner guide rollers, and the second front, middle and inner guide rollers and the second guide roller. Arranged behind the second front lower inner guide roller,
The first rear lower inner guide roller and the second front lower inner guide roller can slide in the front-rear direction.
The shift portion is formed by integrating the first rear upper inner guide roller, the first rear middle inner guide roller, the second front upper inner guide roller, and the second front middle inner guide roller.
Along the Y-axis shift rails extending in the front-rear direction provided on both sides of the first endless belt and the second endless belt, the first rear-middle-inner guide roller holds the first endless belt. The second front, middle, and inner guide rollers can slide from a position close to the first guide portion via the second guide portion to a position close to the second guide portion via the second endless belt, and A laser blanking device that slides following the movement of the laser nozzle in the front-rear direction so as to be located directly below the laser nozzle. The driven shift portion in which the first rear lower inner guide roller and the second front lower inner guide roller are integrated is formed.
The driven shift portion is slidable along the Y-axis driven shift rail extending in the front-rear direction provided on both sides of the first endless belt and the second endless belt, and is driven by the slide of the shift portion. The laser blanking apparatus according to claim 1. The laser beam according to claim 2, further comprising a first tension adjusting unit for finely adjusting the tension of the first endless belt and a second tension adjusting unit for finely adjusting the tension of the second endless belt. Ranking device. In the shift portion, the first rear middle / inner guide roller is arranged in front of the first rear upper inner guide roller, and the second front middle inner guide roller is closer to the second rear upper inner guide roller. The laser blanking apparatus according to any one of claims 1 to 3, which is arranged rearward. The first guide portion includes a first rear outer guide roller.
The laser blanking apparatus according to any one of claims 1 to 4, wherein the second guide portion includes a second front / outer guide roller. Further provided with a spatter receiving box arranged in the space and extending in the width direction,
The laser blanking apparatus according to any one of claims 1 to 5, wherein a vacuum device for sucking the inside of the sputtering receiving box is attached to the sputtering receiving box. An X-axis rail extending in the width direction of the plate material and a pair of Y-axis rails extending in the front-rear direction provided above the first endless belt and the second endless belt are further provided.
The laser nozzle is guided by the X-axis rail so that it can slide.
The laser blanking apparatus according to any one of claims 1 to 6, wherein the X-axis rail is guided by the Y-axis rail and slidable.

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