WO2004065055A1 - レーザ切断装置、レーザ切断方法及びレーザ切断システム - Google Patents
レーザ切断装置、レーザ切断方法及びレーザ切断システム Download PDFInfo
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- WO2004065055A1 WO2004065055A1 PCT/JP2003/000469 JP0300469W WO2004065055A1 WO 2004065055 A1 WO2004065055 A1 WO 2004065055A1 JP 0300469 W JP0300469 W JP 0300469W WO 2004065055 A1 WO2004065055 A1 WO 2004065055A1
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- WIPO (PCT)
- Prior art keywords
- laser cutting
- processing head
- feed direction
- cut
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
- B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
Definitions
- Laser cutting apparatus laser cutting method and laser cutting system
- the present invention relates to a laser cutting apparatus, a laser cutting method, and a laser cutting system. More specifically, the present invention enables laser cutting of parts of various shapes with simple control, prevents adhesion of dust and the like to the cut parts and prevents sticking and sticking, and reliably supports and sends out the parts.
- the present invention relates to a laser cutting device and a laser cutting method that can be used. Furthermore, the present invention does not require a large number of coil materials different in special type or width, and can reduce the number of rewinds of the coil material as well as the number of stock and space of them as much as possible. Laser cutting system.
- the present invention is widely used, for example, in laser cutting of a blank material as a material part of a press part such as an automobile and the related fields.
- the above-mentioned blanking line requires dedicated parts for each part, and a large amount of space and personnel are required for storage and preservation of the dedicated types.
- overseas production has increased, it has been difficult to introduce a blanking line because the amount of production is not large. For this reason, it has recently been investigated to use a laser cutting process for blanking lines.
- a coil for example, a coil
- the coil material supporting device for supporting the material so as to be able to unwind the plate-like material, the leveler device disposed downstream of the core material supporting device and extending the material flatly, and the downstream side of the leveler device
- a laser cutting device disposed and laser cutting the material; and a collecting device disposed downstream of the laser cutting device and collecting the cut parts (product parts, scrap parts, etc.)
- Patent Document 1 See No. 8 (hereinafter referred to as Patent Document 1). ⁇ .
- the above-mentioned laser cutting device is movable in the material transfer means (roll feeder 3 1) for transferring the plate-like material unwound from the coil material, and in the material feed direction (X-axis direction) and width direction (Y-axis direction). And a processing head (laser head 54) capable of irradiating a laser beam toward the material, and a material supporting means for supporting the material and the cut part at the lower part of the processing head (Kenzan conveyor 51) And are configured.
- the material unrolled from the coil material is sent out in the feed direction by the material transfer means, laser cut by the processing head moving in the horizontal plane, and then the cut parts are sent out by the material support means.
- the laser beams transmitted from the processing head and transmitted through the material are directly hit to the many supporting members constituting the Kenzan conveyor to be deteriorated. Therefore, if the laser beam is repeatedly irradiated to the same place, the strength of the support member may be reduced, which may lead to cutting, and periodical replacement is necessary.
- a material transfer means for transferring a plate-like material (strip material 2) unwound from a coil material, and a width direction of the material Movable only in (y-axis direction) and in material
- a processing head capable of irradiating a laser beam
- a material supporting means for supporting the material and cut parts at the lower part of the processing head
- the processing head It is known that there is a dust collection means (storage chamber 7) disposed in the lower part of the container, and the one described in the following. ⁇ Japanese Patent Laid-Open No. Described)). ⁇ .
- the material unwound from the coil material is sent out in the feed direction by the material transfer means, laser cut by the processing head which moves only in the material width direction, and then cut by the material support means. Parts are delivered. And, at the time of laser cutting, spattering, dust and the like are sucked and collected by the dust collection means, and adhesion of the dust and the like to the back surface of the cut part is suppressed.
- the laser beams from the probe head do not directly deteriorate the multiple support members constituting the material support means (feed table 51) and the replacement of these support members is not required.
- the processing head is configured to be immovable in the feed direction and movable only in the material width direction in order to dispose the dust collection means below the processing region. . Therefore, the laser cutting of the material is performed by synchronizing the movement of the material in the feeding direction by the material transfer means and the movement of the processing head in the material width direction.
- the laser cutting of the material is performed by synchronizing the movement of the material in the feeding direction by the material transfer means and the movement of the processing head in the material width direction.
- Patent Document 1 and Patent Document 2 uses a Kenzan conveyor or a Kenzan table having a large number of support members, parts that have been cut depending on the pitch spacing of Kenzan (especially small parts There was a problem that it was not possible to securely support and deliver. Furthermore, when suctioned and held cut parts supported on a Kenzan conveyor or Kenzan table using a transport robot or the like, the cut parts are pressed onto the Kenzan conveyor or Kenzan table, and the cut parts are cut. There was a risk that the back side would be wrinkled.
- the present invention has been made in view of the above-mentioned present situation, and it is possible to carry out laser cutting of parts of various shapes by simple control, and prevent adhesion of dust and the like to cut parts and parts thereof. It is an object of the present invention to provide a laser cutting apparatus and a laser cutting method capable of reliably supporting and delivering the
- the present invention does not require a large number of coil materials having special molds or different plate widths by using the above-mentioned laser cutting device, and can reduce the number of unrolled coils and the like as well as the number of stocks and spaces thereof.
- Another object is to provide a very compact laser cutting system suitable for small volume production.
- the present invention is shown below.
- Material transfer means for transferring plate-like material in the feed direction
- a processing head capable of irradiating a laser beam toward the material
- a head moving means for moving the processing head in the feed direction and width direction of the material
- Upstream support means for supporting the material transferred by the material transfer means, and expanding / contracting the support region of the material in the feed direction along with the movement of the processing head in the feed direction;
- the processing head supports a cut part obtained by laser cutting the material, and the supporting area of the cut part is expanded or contracted in the feed direction along with the movement of the processing head in the feed direction.
- Downstream supporting means
- a laser cutting apparatus comprising:
- the laser cutting apparatus according to claim 1, further comprising dust collection means for collecting dust at a lower portion of the processing head.
- the downstream support means is a belt conveyor mechanism or a roller conveyor mechanism .
- the upstream support means is configured by a belt conveyor mechanism or a roller conveyor mechanism.
- the belt conveyor mechanism comprises: a displacing roller which is displaceable along the feeding direction; a reference port which faces the displacing roller at a predetermined distance in the feeding direction and which can not be displaced; the displacing roller and the displacing roller
- the laser cutting device according to claim 4 comprising: an endless belt wound around a reference roller; and tension adjusting means for adjusting the tension of the endless belt.
- a laser cutting apparatus wherein said tension adjusting means has a tension adjusting roller which is displaceable in a plane including a feed direction and wound around said endless belt.
- the material transfer means includes a pair of transfer ports capable of holding the material in the front and back direction, and a drive source for rotating at least one of the transfer rollers.
- the laser cutting device according to 1.
- the dust collection means comprises a dust collection box movable in the feed direction and having an upper end opening along the width direction of the material.
- a laser cutting method comprising: expanding and contracting the support area of material in a feed direction and expanding and contracting the support area of the cut component of the downstream support means in a feed direction.
- a coil material supporting device for supporting the coil material so that the plate material can be unrolled from the coil material, and the coil material supporting device disposed downstream of the coil material and being unwound from the coil material
- Laser cutting system characterized by
- a loop forming device disposed between the leveler device and the laser cutting device and for forming a loop portion in the material which is flatly extended by the leveler device 1. 7.
- the material is laser cut by the processing head moving in the material feed direction and width direction. Therefore, even if the parts have complicated shapes, laser cutting can be performed with minimum control of the material transfer means.
- the support area of the material by the upstream support means is expanded and contracted in the feed direction, and the cut by the downstream support means is completed.
- the support area of the part is scaled in the feed direction. Therefore, a space is always formed immediately below the processing head between the upstream support means and the downstream support means, and the laser light passing through the material can directly strike the upstream and downstream support means. It is not necessary to replace these support means regularly. Further, by providing a dust collection device in the above space, it is possible to prevent the adhesion of dust and the like to the cut parts.
- the size of the cut-off parts of the upstream support means and the downstream support means Regardless of the shape, it is possible to provide a structure that can reliably support and deliver the part.
- the dust collection means for collecting the dust is provided at the lower part of the processing head, the dust generated at the time of laser cutting can be surely collected.
- the material cutting means for cutting the material by shear When the material cutting means for cutting the material by shear is provided, laser cutting and shearing by cutting can be selectively combined, and depending on the shape of the part, the production efficiency can be significantly improved.
- downstream side support means when configured by a belt conveyor mechanism or a roller conveyor mechanism, the downstream side support means can more reliably support and feed the material and the cut parts without brazing. Can.
- the upstream side support means when configured by a belt conveyor mechanism or a roller conveyor mechanism, the upstream side support means can support and feed the material more securely without brazing.
- the belt conveyor mechanism includes a displacement roller, a reference roller, an endless belt, and a tension adjustment means
- the displacement of the displacement roller in the feed direction expands and contracts the support region of the endless belt, and at this time the tension adjustment
- the tension of the endless belt is kept at an appropriate value by means. Therefore, it is possible to more reliably support and deliver the material which can be placed on the upper surface of the endless belt and the cut parts without sticking.
- the tension adjusting means has a tension adjusting port which is displaceable in a plane including the feeding direction and is wound around the endless belt, the tension of the endless belt can be more surely and properly made. It can be held to a value.
- the processing head and the displacement port are integrally fed in the feed direction.
- the movement to the processing head can be more accurately synchronized with the movement of the processing head and the expansion and contraction of the supporting area of the belt conveyor mechanism.
- the belt conveyor mechanism can be made simpler and cheaper without requiring a dedicated drive source for displacing the displacement roller.
- the material transfer means has a pair of transfer ports capable of holding the material in the front and back direction, and a drive source for rotating at least one of the transfer rollers, the material can be fed more reliably.
- the transport means can be simple and inexpensive.
- Dust collection means when the dust collection means has a dust collection box movable in the feed direction and having an upper end opening along the width direction of the material, dust and the like can be more reliably collected. Dust collection means can be simple and inexpensive.
- the processing head and the dust collection box are accurately synchronized to move in the feed direction. It can be moved.
- the dust collection means can be made simpler and less expensive without requiring a dedicated drive source for moving the dust collection box.
- the material cutting means has a pair of upper and lower cutting blades that are relatively close and separated, the material can be cut more quickly, and the material cutting means can have a simple and inexpensive structure.
- the processing head can irradiate the laser beam transmitted by the optical fiber, the weight of the head moving means can be reduced, and high-speed laser cutting can be realized.
- the material is laser cut by the processing head which moves in the material feeding direction and width direction. Therefore, even if the parts have complicated shapes, laser cutting can be performed with minimum control of the material transfer means.
- the support area of the material by the upstream support means is expanded and contracted in the feed direction, and the cut by the downstream support means is completed.
- the support area of the part is scaled in the feed direction. Therefore, a space is always formed immediately below the processing head between the upstream support means and the downstream support means, and the laser light passing through the material directly strikes the upstream and downstream support means. There is no need to replace these support means regularly. Further, by providing a dust collection device in the above space, it is possible to prevent the adhesion of dust and the like to the cut parts.
- the laser beam emitted from the processing head does not directly strike the upstream support means and the downstream support means, the size of the cut-off parts of the upstream support means and the downstream support means Regardless of the shape, it is possible to provide a structure that can reliably support and deliver the part.
- the material when the material is cut by selectively combining laser cutting and shear cutting, the material can be cut with good production efficiency depending on the shape of the part.
- the laser cutting system of the present invention it is possible to continuously cut the plate-like material unwound from the coil material at high speed with high accuracy. Therefore, it does not require extensive space or personnel for dedicated storage and maintenance as in conventional blanking material cutting. In addition, it is possible to process a wider variety of blanks than a single plate width material. As a result, it is not necessary to have a large number of coil materials having different sheet widths, and the number of coil materials in stock and space can be reduced as much as possible, and the production efficiency and yield can be greatly improved. Can process blanks. In addition, by laser cutting, there is no restriction on the thickness of the material to be cut, and it is possible to make an extremely compact installation with the necessary minimum rigidity.
- blanks of high-mix low-volume parts can be consolidated and processed.
- blank materials for overseas production parts can be consolidated, processed, packaged and exported, and the blank materials can be used at overseas factories. From the above, we can greatly contribute to the demand center, and we can provide a new field of coil material processing.
- FIG. 1 is a side view showing an entire configuration of a laser cutting system according to the present embodiment.
- ⁇ Q is a side view showing an entire configuration of a laser cutting system according to the present embodiment.
- FIG. 2 is a plan view in which a part of FIG. 1 is omitted.
- FIG. 3 is a side view of the laser cutting device according to the present embodiment.
- FIG. 4 is a view on arrow IV of FIG.
- FIG. 5 is an explanatory view for explaining the expansion and contraction operation of each support area of each belt conveyor mechanism.
- FIG. 6 is an explanatory view for explaining the separation and recovery apparatus, in which (a) shows a form having a vacuum member and a t ⁇ pressure member, and (b) shows a form having only a vacuum member.
- FIG. 7 is an explanatory view for explaining another form of separation and recovery apparatus.
- FIG. 8 is a side view showing another form of laser cutting system.
- FIG. 9 is a chisel view showing yet another form of laser cutting system.
- FIG. 10 is a plan view showing a cutting form of another material,) shows a form in which a plurality of parts are cut in the feeding direction and width direction of the plate material, and (b) is a plural form in the feeding direction of the plate material. The form which cuts a number of parts is shown.
- FIG. 11 is a side view showing another form of laser cutting apparatus.
- FIG. 12 is a side view showing still another form of the laser cutting apparatus.
- FIG. 13 is a side view showing still another form of laser cutting apparatus.
- FIG. 14 is a side view showing still another form of laser cutting apparatus.
- FIG. 15 is a side view showing still another form of laser cutting apparatus. Disclosure of the invention
- the laser cutting system is configured to include a coil material supporting device, a leveler device, and a laser cutting device described below.
- the laser cutting system can include, for example, at least one of a loop forming device, a separation and recovery device, and a laser welding device described below.
- coil material support device has no particular restriction on its structure, size, etc., as long as it can support the coil material so that the plate-like material can be unrolled from the coil material.
- the “leveler device” is not particularly limited in its structure, size, etc., as long as the material disposed downstream of the coil material support device can extend the material unwound from the coil material flat. .
- the above “loop forming device” is disposed between the above leveler device and a laser cutting device to be described later, and as long as it is possible to form a loop portion in a material which is extended flat by the leveler device, its structure and size There is no particular restriction on
- the laser cutting system may not include, for example, a loop forming device. That is, the material flatly extended by the leveler device can be fed to a laser cutting device described later without forming a loop portion. This makes the laser cutting system extremely compact.
- the above “separation and recovery apparatus” is disposed downstream of the laser cutting apparatus described later, and as long as it can separate and collect the product parts and scrap parts which are the cut parts, the structure, size, etc. It does not matter in particular.
- this separation and recovery apparatus include one or a combination of two or more of the following forms (1), (2), and (3).
- Guide means for guiding product parts delivered by the downstream support means described later, accumulation and recovery means for accumulating and recovering product parts guided by the guide means, and delivery by the downstream support means described later A form comprising collecting means for collecting scrap parts (see FIG. 7).
- Conveying means for example, a conveying robot etc.
- suction means provided on the transfer member for suctioning the product member
- the transfer member A pressing means for pressing the scraped parts downward, and a control means for controlling the suction and release of the suction means ⁇ see FIG. 6 (a). ⁇ .
- Conveying means for example, a conveying port pot etc.
- a transfer member transferred by the conveying means
- first suction means provided on the transfer member and for adsorbing product parts
- a second P and a mounting means provided on the transfer member for suctioning the scrap parts
- a control means for controlling suction and release of the first and second suction means ⁇ Fig. 6 (b Reference o ⁇ 1 ⁇
- the transfer member is usually attached to the end of the movable arm of the transfer port pot.
- (1) form is usually used when the shape and direction of cut parts are the same.
- (2) form and (3) form are usually used when the shape and direction of cut parts are different.
- the above-mentioned laser welding device can be disposed, for example, on the downstream side of a laser cutting device described later.
- the laser cutting device includes a material transfer unit described below, a processing head
- a head moving means, an upstream support means and a downstream support means are provided.
- the laser cutting apparatus may comprise, for example, at least one of the dust collection means and the material cutting means described below.
- the above-mentioned “material transfer means” does not matter in particular the transfer form, structure, size, etc., as long as it can transfer plate-like material in the feed direction.
- the transfer mode of the material transfer means is, for example, (1) a mode in which the material is not transferred at the time of laser cutting, (2) a mode in which the material is transferred at a constant speed at the time of laser cutting, and (3) Can be mentioned.
- the material transfer means can intermittently transfer the material and can position and fix the material. In this way, it is possible to laser cut the material positioned and fixed by the material transfer means at the time of laser cutting, and no material transfer control of the material transfer means is required at the time of laser cutting.
- the material transfer means can have, for example, a drip mechanism capable of gripping the side ridges and the like of the material and movable along the feed direction. It is preferable that the material transfer means has a pair of transfer rollers capable of holding the material in the front and back direction, and a drive source for driving one transfer roller, from the viewpoint of a simpler and less expensive structure. Also, the material transfer means can be configured by, for example, the above-mentioned leveler device. Thus, the material transferred in the feed direction can be laser-cut by the leveler device, and the entire system can be made simpler and cheaper. ⁇ 3
- processing head are not particularly limited as long as the material can be irradiated with laser light.
- type of laser light for example,
- this processing head can have, for example, a nozzle member that emits laser light. And, the outer diameter of the nozzle of this nozzle member is usually about 2 to about LO mm. Furthermore, this processing head can have, for example, detection means (for example, a proximity switch, a capacitance sensor, etc.) for detecting the facing distance to the material. As a result, the gap between the tip end side of the processing head and the material can be kept constant, and the collision between the two can be prevented.
- detection means for example, a proximity switch, a capacitance sensor, etc.
- the processing head sets the center in the width direction of the material as the origin position.
- laser cutting can be performed by a plurality of processing heads, for example, by output branching or time sharing. As a result, slitting of the end portion in the width direction of the material and processing of the profile can be performed simultaneously, and the productivity can be greatly improved.
- the above-mentioned “head moving means” is not particularly limited in its movement form, structure, size, etc., as long as the processing head can be moved at least in the material feeding direction and width direction.
- the head transfer means includes, for example, a slide member supported so as to be movable along a feeding direction by a guide (for example, a guide rail etc.) provided on a fixed side support frame, and supported by the slide member.
- a guide for example, a guide rail etc.
- the telescopic arm tool for supporting the processing head in a fixed state, and the drive source for moving the slide member can be provided.
- the head transfer means includes, for example, a first slide member movably supported along a feeding direction by a guide portion (for example, a guide rail etc.) provided on a fixed side support frame; 1 Guide part provided on slide member (for example, guide rail etc.
- a second slide member supported so as to be movable along the width direction of the material, and a guide portion (for example, a guide rail etc.) provided on the second slide member
- a third slide member for supporting the processing head in a fixed state, and drive sources for moving the first, second and third slide members (examples H
- each drive motor etc. and can be provided.
- a power transmission mechanism for example, a pole screw mechanism or the like is usually interposed between the slide members and the drive sources.
- the head moving means can be controlled based on, for example, NC data.
- This NC data is usually converted from CAD data. Therefore, it is possible to cope with this simply by exchanging data at the time of setup change etc., which requires a large space for mold storage and mold maintenance as compared with the conventional one using a blanking press. And not.
- the “upstream support means” supports the material transferred by the material transfer means, and extends and contracts the support area of the material in the feed direction in synchronization with the movement of the processing head in the feed direction. As long as it can be obtained, the amount of expansion and contraction, structure, size, etc. are not particularly limited.
- the upstream side support means include a telescopic conveyor mechanism, a telescopic table mechanism, a telescopic shirt mechanism and the like.
- Examples of the telescopic conveyor mechanism include a belt conveyor mechanism, an open-pipe conveyor mechanism, a caterpillar conveyor mechanism, and a kenzan conveyor mechanism.
- the upstream support means be a belt conveyor mechanism or a roller conveyor mechanism from the viewpoint of being able to reliably support the material and achieving a simple and inexpensive structure.
- the upstream support means usually supports the material upstream of the lower part of the processing head.
- the upstream support means normally stretches the support region of the material in the feed direction with the same amount of stretch as the movement amount of the processing head in the feed direction.
- the “downstream side support means” supports cut parts (product parts, scrap parts, etc.) obtained by laser cutting the material by the processing head, and in the feed direction of the processing head. As long as the support area of the cut part can be expanded and contracted in the feed direction in synchronization with the movement, the amount of expansion, the structure, the size, and the like are not particularly limited.
- Examples of the downstream side support means include an extensible conveyor mechanism, an extensible table mechanism, and an extensible shirting mechanism.
- Examples of the telescopic conveyor mechanism include a belt conveyor mechanism, a roller conveyor mechanism, a caterpillar conveyor mechanism, and a kenzan conveyor mechanism.
- This downstream side support means is a belt conveyor mechanism from the viewpoint of being able to reliably support cut parts and of being able to have a simple and inexpensive structure. ⁇ Five
- downstream support means usually supports mainly cut parts downstream of the lower part of the processing head. Furthermore, the downstream side support means normally extends and retracts the support region of the cut part in the feed direction with the same amount of extension and contraction as the movement amount of the processing head in the feed direction.
- downstream support means supports the tip of the material in the feed direction before cutting.
- the upstream support means usually enlarges (or reduces) the support region of the material in the feed direction, and the downstream support means is cut off. It reduces (or enlarges) the support area of the parts in the feed direction. That is, even if the support area of the material and the support area of the cut part expand and contract in the feed direction, the sum of the support area of the material and the support area of the cut part becomes a predetermined value. As a result, it is possible to improve space efficiency by minimizing the respective support areas of the upstream side support means and the downstream side support means.
- the upstream side support means and the downstream side support means are connected to, for example, a slide member which constitutes the head moving means and is movable in the feed direction, and the movement of the slide member in the feed direction is
- the respective support area can be scaled in the feed direction. That is, in the upstream support means and the downstream support means, for example, the respective support regions can be expanded and contracted in the feed direction by the drive source constituting the head moving means. This makes it possible to more reliably synchronize the movement of the processing head in the feed direction and the expansion and contraction of the upstream side support means and the flow side support means.
- a dedicated drive source for the upstream side support means and the flow side support means is not required, and the simple and inexpensive structure of the entire device can be achieved.
- the “belt conveyor mechanism” includes, for example, displacement rollers and a reference roller disposed opposite to each other in the feed direction, and an endless belt wound between the displacement roller and the reference roller; Tension adjusting means for adjusting the tension of the endless belt.
- the displacement roller and pin or reference roller can be rotationally driven by, for example, a drive source (eg, drive motor etc.). Also, this displacement roller can be displaceable by, for example, a dedicated drive source (for example, a fluid cylinder or the like). , e
- the endless belt can be made of, for example, a rubber material (preferably a urethane rubber material). Furthermore, the endless belt can be provided, for example, with a silicon layer on its surface side.
- the tension adjusting means may include, for example, a pressing member which is displaceable in a plane including the feeding direction and which presses the endless belt. From the viewpoint that tension can be adjusted more easily, it is preferable that the tension adjusting means has a tension adjusting roller which is wound around an endless belt in a displacement-free manner in a plane including the feeding direction.
- the tension adjustment port can be displaceable by, for example, a dedicated drive source (eg, a fluid cylinder or the like). Furthermore, it is preferable that the tension adjustment port is displaceable in the feed direction from the viewpoint of improving space efficiency in the vertical direction.
- the belt conveyor mechanism can have, for example, cleaning means (for example, a brush member or the like) that comes in contact with the surface of the endless belt.
- cleaning means for example, a brush member or the like
- the surface of the endless belt is cleaned to remove dust, dirt, etc. scattered and attached to the belt surface.
- the belt conveyor mechanism can include, for example, a support member (for example, a support plate material or the like) that supports the back surface of the upper circumferential portion of the endless belt.
- a support member for example, a support plate material or the like
- This support member can be provided, for example, along the width direction of the material.
- the support member can be provided, for example, on the slide member that constitutes the above-mentioned head moving means.
- the “roller conveyor mechanism” is, for example, a shirting member which is movable along the feed direction and can be stored in the storage position, and is rotatably supported by the shutter member, as will be described later in the embodiment. And a plurality of support rollers
- this roller conveyor mechanism can have, for example, a rotatable endless belt, and a plurality of support openings rotatably supported by the endless belt (see FIG. 15).
- a rotatable endless belt and a plurality of support openings rotatably supported by the endless belt (see FIG. 15).
- roller conveyor mechanism is rotatably supported by, for example, an expansion and contraction tool that can expand and contract along the feed direction, a plurality of support portions provided on the expansion and contraction tool along the feed direction, and a plurality of support portions. And a plurality of support rollers.
- the form of the dust collection, the structure, the size, etc. are not particularly limited as long as dust and the like can be collected at the lower part of the processing head.
- This dust collection means can have, for example, a dust collection box which is movable along the feeding direction and has an upper end opening along the width direction of the material.
- the dust collection means can have, for example, an air suction means (for example, a suction blower or the like) that is airtightly connected to the dust collection box.
- the dust collection box can be moved by a dedicated drive source (eg, a fluid cylinder or the like). From the viewpoint of simpler and less expensive construction, it is preferable that the dust collection box be fixed to the slide member constituting the head moving means described above. Further, the dust collection box can have, for example, a sloped bottom portion. This makes it possible to suppress the buildup of dust and the like collected in the dust collection box.
- the above-mentioned “material cutting means” is not particularly limited in its cutting form, structure, size, etc., as long as the material can be cut by shearing.
- the material cutting means can be disposed, for example, between the material transfer means and the upstream support means.
- the material cutting means can have, for example, a pair of upper and lower cutting blades that approach and separate from each other.
- plate-like material examples include a continuous plate material unwound from a coil material, and a plate material of a predetermined size unwound from a coil material and cut in advance.
- a processing mode by the above-mentioned laser cutting system for example, a mode in which product parts as cut parts are continuously processed ⁇ see, eg, FIG. 10 (b).
- ⁇ A form in which product parts and scrap parts are continuously processed as cut parts ⁇ See, for example, Fig. 2 and Fig. 10 (a).
- Etc. can be mentioned.
- the above-mentioned "product parts” usually mean the ones that become the material of pressed parts.
- the above-mentioned "scrap parts” usually mean residual materials to be reused or discarded.
- the laser cutting method according to the present embodiment is characterized in that: ⁇ g
- the support area of the material of the upstream support means is expanded (or reduced) in the feed direction as the feed direction of the feed moves, and the support area of the cut part of the downstream support means is fed. Reduce (or enlarge) in the direction.
- the sum of the support area of the material and the support area of the cut part is a predetermined value. .
- the material in a fixed position can be laser cut.
- the material can be laser cut while collecting dust and the like in the lower part of the processing head.
- the material can be cut by selectively combining laser cutting and cutting by shearing.
- a plasma cutting apparatus by replacing the processing head capable of irradiating a laser beam in the present embodiment with a processing head capable of irradiating a plasma.
- left and “right” indicate plate-like materials (hereinafter, simply referred to as plate materials) 1 1 indicates the width direction Y, and “front” and “rear” are Indicates the feed direction X of the plate.
- a coil material support device 2 disposed on the most upstream side, and a leveler device disposed on the downstream side of the coil material support device 2.
- a loop forming portion 4 disposed downstream of the leveler device 3, a laser cutting device 5 disposed downstream of the loop forming portion 4, and a downstream side of the laser cutting device 5 Is basically configured.
- the coil material supporting device 2 is suitably inserted into the hollow portion of the coil material 10 (not shown) j g
- the coil material 10 is supported by this insertion tool so that the plate material 11 can be unrolled continuously.
- the leveler device 3 has upper and lower rollers 15 a and 15 b arranged in a staggered manner. By the upper and lower rollers 15a and 15b, the plate material 11 drawn out from the coil material 10 is stretched flat and straightened.
- the loop forming portion 4 has a plurality of upstream and downstream support rollers 16 a and 16 b for forming a loop portion on the plate member 11 removed by the leveler device 3. ing.
- the laser cutting device 5 is, as shown in FIGS. 3 and 4, a material transfer means A, a processing head B, a head moving means, a dust collection means D, a belt conveyor mechanism E (exemplified as downstream side support means) It is basically configured to include a rut conveyor mechanism F (exemplified as an upstream side support means).
- the support frame 17 is provided with a pair of upper and lower transfer rollers 18a and 18b.
- the pair of transfer rollers 18a and 18b are intermittently rotated by the driving motor M l (see FIG. 2), and a plate 1 sandwiched between the transfer rollers 18a and 18b. It is possible to intermittently transfer 1 along the feed direction X. Further, the transfer rollers 18 a and 18 b can be brought close to and separated from each other by a drive cylinder (not shown) for the purpose of changing the plate material 11 or the like.
- an inner roller for guiding and supporting the lower surface side of the plate member 11 and a guide supporting member for guiding the side surface of the plate member 11
- Side guide rollers are provided.
- a guide rail 20 extending along the feed direction X is disposed on one side of the support frame 19.
- a slide member 21 is movably supported by the guide rail 20.
- the slide member 21 is adapted to slide in the feed direction by means of a pole screw mechanism (not shown) connected to a drive movable (not shown) as appropriate.
- the proximal end side of the movable arm fixture 22 is supported by the slide member 21.
- the processing head B capable of emitting YAG laser light to the plate material 11 is fixed to the tip end side of the movable arm tool 22. Therefore, this processing head B is in the feed direction X, plate ⁇
- An optical fiber 23 is used to transmit the YAG laser from the laser oscillator (not shown) to the processing head B.
- left and right guide rails 26a and 26b extending along the feed direction X are disposed on the left and right support frames 25a and 25b.
- Left and right slide blocks 2 7 a and 2 7 b are movably supported by the left and right guide rails 2 6 a and 2 6 b.
- the slide member 21 described above is connected to one slide block 27 b via a connecting portion 28.
- both sides of the dust collection box 30 are fixed to the slide blocks 2 7 a and 2 7 b through the connection portions 2 9. Accordingly, the slide blocks 2 7 a and 2 7 b slide in the feed direction X as the slide member 21 and the processing head B move in the feed direction X.
- the dust collection box 30 is formed of left and right side walls 3 l a, 3 1 b in the plate width direction Y, and front and rear side walls 3 2 a 3 2 b, and a bottom wall 33 in the feeding direction.
- a suction source for example, a suction blower or the like
- a suction air flow is generated in the dust collection box 30 to Sputter and dust generated during cutting are collected by suction.
- the origin position of the processing head B is set on the most upstream side in the feed direction X and at the center in the plate width direction Y and further on the top side in the vertical direction Z.
- Support frame (not shown)
- a reference roller 36 and a plurality of (two in the drawing) guide rollers 37 are rotatably supported.
- the drive shaft (see FIG. 2) of the drive motor M 2 is connected to the rotational shaft of the reference roller 36.
- a displacement roller 38 is rotatably supported between the left and right slide blocks 2 7 a and 2 7 b described above.
- a tension adjusting roller 39 is rotatably supported on the tip end side of the piston rod S 1 a of the driving cylinder S 1 disposed along the vertical direction.
- a urethane rubber endless belt 40 is wound around the reference roller 36, each guide roller 37, the displacement roller 38 and the tension adjustment roller 39. Therefore, the endless belt 40 is moved in a predetermined direction by the drive of the drive motor M 2 ⁇ ⁇
- the displacement roller 38 moves along the feed direction X along with the movement of the slide member 21 in the feed direction X, and the tension adjustment roller is operated by the operation of the drive cylinder S1. 3 9 moves up and down.
- the predetermined processing range ⁇ e.g., 1000 mm
- a reference roller 46 and a plurality of (two in the drawing) guide rollers 47 are rotatably supported by a support frame (not shown).
- the drive shaft (see FIG. 2) of the drive motor M 3 is connected to the rotational shaft of the reference roller 46.
- a displacement roller 48 is rotatably supported between the left and right slide blocks 2 7 a and 2 7 b described above.
- a tension adjusting roller 49 is rotatably supported on the tip end side of the piston rod S 2 a of the drive cylinder S 2 disposed along the vertical direction.
- An endless belt 50 made of urethane rubber is wound around 9. Therefore, the endless belt 50 is rotated in a predetermined direction by the drive of the drive motor M3.
- the displacement roller 48 moves along the feed direction X along with the movement of the slide member 21 in the feed direction X, and the tension adjustment roller is operated by the action of the drive cylinder S2. 4 9 moves up and down.
- the processing head B in the predetermined processing range H e.g., 1000 mm
- the support region R 2 of the material by the belt conveyor mechanism F is expanded and contracted. .
- brush members 41, 42 contacting the surface of the endless belts 40, 50 are disposed at lower peripheries of the endless belts 40, 50, respectively.
- slack prevention plates 4 3 and 4 4 extending along the plate width direction Y are disposed on the back surface of the upper peripheral portion of each endless belt 50. These slack prevention plates 4 3 and 4 4 are fixed to the left and right slide blocks 2 7 a and 2 7 b described above. Therefore, the slack preventing plates 4 3 and 4 4 are fed in the feed direction X along with the movement of the slide member 21 and the feeding head B in the feed direction X. ⁇
- the separation and recovery apparatus 6 is provided with a transfer port pot 8 having a plurality of movable arms 9a and 9b (see FIG. 1).
- a transfer member 52 is supported on the distal end side of the movable arm 9 a of the transport robot 8.
- the vacuum member 53 can move up and down via the spring to a position facing the product part 12 among the cut parts. It is supported by Further, on the lower surface side of the transfer member 52, a pressing member 54 is supported so as to be vertically movable via a spring at a position facing the scrap part 13 among the cut parts.
- the stroke length of the pressing member 54 is set to a value larger than the stroke length of the vacuum member 53.
- the transfer member 52 is provided with the vacuum member 53 and the pressing member 54.
- the present invention is not limited to this.
- the transfer member Vacuum members 5 7 a and 5 7 b can be provided on 5 6.
- the control means is appropriately transferred by the control means.
- a guide member 59 for guiding the product part 12 into the collecting and collecting section 7 is provided to provide a separating and collecting apparatus. 60 may be configured.
- the sheet material 11 is continuously unrolled from the coil material 10 supported by the coil material support device 2.
- the sheet material 1 1 unwound from the coil material 10 is straightened by the leveler device 3, and then a loop portion is formed by the loop forming portion 4, and fed between the pair of transfer rollers 18 a and 18 b It is done.
- the processing head B is located at the origin position. Therefore, the support area R2 of the plate material by the belt conveyor mechanism F is in the minimum reduction state, and the support area R1 of the cut parts by the belt conveyor mechanism E is in the maximum expansion state.
- the plate material 1 1 is intermittently fed in the feeding direction X by the pair of transfer rollers 18 a and 18 b
- the plate material 1 1 is the upper side of the endless belt 50 of the belt conveyor mechanism F. Supported on the surface. Further, the leading edge of the plate member 11 is supported by the upper surface of the endless belt 40 of the belt conveyor mechanism E. Then, the plate member 11 is positioned and fixed between the pair of transfer rollers 18a and 18b.
- the slide member 21 is slid and the movable arm tool 22 is operated to move the processing head B three-dimensionally in the feed direction X, the plate width direction Y and the up and down direction Z.
- the plate material 11 is laser-cut by the YAG laser light irradiated to the processing head B, and product parts 12 and scrap parts 13 are obtained (see FIG. 2).
- the support region R 2 of the plate material 11 by the belt conveyor mechanism F is expanded (or reduced).
- the support area R1 of the cut parts by the belt conveyor mechanism E is reduced (or enlarged).
- the dust collection box 30 moving in the feed direction X together with the processing head B, spatter, dust and the like generated at the time of laser cutting are suctioned and collected.
- the transport operation of the cut parts 1 2 and 13 and the delivery operation of the plate material are performed in a state where the machining head ⁇ is returned to the origin position again. That is, by the circumferential drive of endless belt 40, the cut parts 1 2 and 13 are fed out in the feed direction X by a predetermined amount, and in synchronization with the circumferential drive of endless belt 40, endless belt 5 0
- the plate material 11 is intermittently fed in the feeding direction X by a predetermined amount by the pair of transfer rollers 18a and 18b as described above.
- transfer member 5 2 ⁇ refer to FIG. 6 (a) by the action of the transfer port pot 8. Is made to face the cut parts 12 13 supported on the surface of the endless belt 40 on the most downstream side, and is lowered from the facing state. Then, the vacuum component 53 is used to hold the product part 12 by suction, and the pressing member 54 presses the scrap part 13 onto the surface of the endless belt 40. Thereafter, the conveyance of the transfer member 52 and the release of suction of the vacuum member 53 are appropriately controlled, and the product parts 12 are accumulated and collected in the accumulation and recovery unit 7a (7b). On the other hand, the scrap parts 12 remaining on the surface of the endless belt 40 are discharged by the conveying action of the plate material 11 next time, and are collected by the collection box 80.
- the laser cutting system 1 is configured using the laser cutting device 5 having the belt conveyor mechanisms E and F, the plate material 1 unwound from the coil material 10 is continuously
- the laser cutting can be performed with high speed and high accuracy. Therefore, it does not require a large space or personnel for dedicated storage and maintenance as in the material cutting by the conventional blanking press. Also, it is possible to process a wider variety of blanks than a single plate width material. As a result, it is not necessary to have a large number of coil materials different in sheet width, and it is possible to reduce the number of rewinds etc. as well as the number of stock and space of coil materials as much as possible. It can process materials.
- the transfer roller 1 8 a is used in laser cutting.
- 18 b does not need to be driven to feed plate material 1 1. Therefore, even if the parts have complicated shapes, laser cutting can be performed with simple control.
- the supporting area R1 of the cut parts by the belt conveyor mechanism E and the supporting area R2 of the plate material by the belt conveyor mechanism F are fed. Since expansion and contraction are performed in the direction X, a space (hollow) can always be formed directly below the processing head B between the respective belt conveyor mechanisms E and F. As a result, the laser light irradiated from the processing head B and transmitted through the plate does not directly strike the belt conveyor mechanisms E and F, and there is no need to periodically replace these belt conveyor mechanisms E and F. The running cost can be minimized.
- the dust collection box 30 is provided by utilizing the above-mentioned space, spattering and dust etc. generated during laser cutting can be forcibly sucked and collected, and the cut product 1 2, 13 No dust etc. adhere to the back of 3. Therefore, it is not necessary to wipe the back of the product parts 12 one by one as in the prior art, and efficient production can be performed at low cost.
- the plate material 1 1 is supported by the belt conveyor mechanism F and the product parts 12 are supported by the belt conveyor mechanism E, the plate material 1 1 and the product parts 1 2 are securely supported without sticking. It can be sent out. Also, regardless of the shape and size of the cut parts 1 2, 1 3, in particular, any small parts of the cut parts 1 2 1 3 are securely supported by the belt conveyor mechanism F. Be sent out c
- the displacement rollers 38 and 48 constituting the respective belt conveyor mechanisms E and F are rotatably supported on the left and right slide blocks 2 7 a and 2 7 b. Since the displacement rollers 3 8 4 8 are displaced in the feeding direction X integrally with the slide member 21, the movement head B is accurately synchronized with the movement in the feeding direction X.
- the support areas Rl and R2 of the belt conveyor mechanisms E and F can be expanded and contracted. Furthermore, a simple and inexpensive structure can be realized without requiring a dedicated drive source for displacement of each displacement roller 3 8, 4 8.
- the dust collection box 30 is attached to the left and right slide blocks 2 7 a and 2 7 b so that the dust collection box 30 is displaced in the feed direction X integrally with the slide member 21.
- the dust box 30 can be moved by precisely synchronizing the movement of the head of the head B in the feed direction X, and a dedicated drive source for moving the dust box 30 can be used. Simple and inexpensive structure without the need.
- the present invention is not limited to the above embodiment, and may be variously modified within the scope of the present invention according to the purpose and application. That is, although the loop forming unit 4 is disposed between the leveler device 3 and the laser cutting device 5 to constitute the laser cutting system 1 in the above embodiment, the present invention is not limited to this.
- FIG. As shown in the figure, the loop forming part is omitted to constitute the laser cutting system 100, and the plate material 1 1 straightened by the leveler device 3 is directly transferred to the pair of transfer rollers 18a, 18b. It may be sent in between. Even with such a configuration, the same operation and effect as the above embodiment can be achieved, and further downsizing of the entire system can be achieved.
- the YAG laser beam is supplied to one processing head B capable of three-dimensional movement, and the plate 11 is laser-cut only with the processing head B.
- another pair of transfer ports 18a and 18b may be provided at predetermined positions upstream from the other.
- the processing head 61 is provided in a fixed position, and YAG laser light from the laser oscillator 62 is supplied to these processing heads B and 61 by output branching or time sharing.
- the plate material 11 may be laser-cut by these processing heads B and 61. According to such a configuration, as shown in FIG. 10 (a), the side edge 64 of the plate material 1 1 is trimmed by the processing head 61, and the product parts 1 by the processing head B.
- a plate material cutting device 66 having b may be provided to constitute a laser cutting device.
- the plate cutting device 66 is used to cut a straight line along the plate width direction Y, and the processing head B is used to cut a complex curve or a line intersecting the plate width direction Y. Product parts can be cut efficiently.
- the laser cutting device 5 was comprised so that the tension adjustment roller 39, 49 may be displaced along the up-down direction Z, it is not limited to this,
- the laser cutting device may be configured to displace the tension adjusting rollers 3 9 and 4 9 in the feed direction X. According to such a configuration, the space efficiency in the vertical direction of the laser cutting device can be improved.
- the belt conveyor mechanisms E and F are provided as the upstream side support means and the downstream side support means to constitute the laser cutting device 5, but the present invention is not limited to this.
- a roller conveyor mechanism 68 can be provided as an upstream support means, and a belt conveyor mechanism 69 can be provided as a downstream support means to constitute a laser cutting device.
- the roller conveyor mechanism 68 is provided with a shirting member 78 which can be stored in the storage position and movable along the feeding direction, and the plurality of support rollers 79 are rotatably supported by the shivering member 78. And be configured.
- the belt conveyor mechanism 69 has the same configuration as the above-described belt conveyor mechanism E. Contrary to the above, a belt conveyor mechanism is provided as the upstream support means, and a conveyor belt mechanism as the downstream support means.
- a laser cutting device can be configured by providing a single conveyor mechanism 70, 71 as the upstream side supporting means and the downstream side supporting means.
- a shirting member 72 which can be stored in the storage position and is movable along the feeding direction is provided, and a plurality of support rollers 73 are rotatably supported by the shirting member 72.
- a dust collection box 30 may be connected to an endless belt 75, and a plurality of support rollers 76 may be rotatably supported on these endless belts 75. .
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Feeding Of Workpieces (AREA)
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/514,014 US20060118529A1 (en) | 2003-01-21 | 2003-01-21 | Laser cutting device, laser cutting method, and laser cutting system |
| EP03701137A EP1586407A4 (en) | 2003-01-21 | 2003-01-21 | LASER CUTTING DEVICE, LASER CUTTING METHOD AND LASER CUTTING SYSTEM |
| PCT/JP2003/000469 WO2004065055A1 (ja) | 2003-01-21 | 2003-01-21 | レーザ切断装置、レーザ切断方法及びレーザ切断システム |
| JP2004567125A JP4290656B2 (ja) | 2003-01-21 | 2003-01-21 | レーザ切断装置、レーザ切断方法及びレーザ切断システム |
| CNB038114003A CN100398249C (zh) | 2003-01-21 | 2003-01-21 | 激光切割装置、激光切割方法和激光切割系统 |
| AU2003203192A AU2003203192A1 (en) | 2003-01-21 | 2003-01-21 | Laser cutting device, laser cutting method, and laser cutting system |
| TW093101657A TW200416091A (en) | 2003-01-21 | 2004-01-20 | Laser cutting device, laser cutting method, and laser cutting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2003/000469 WO2004065055A1 (ja) | 2003-01-21 | 2003-01-21 | レーザ切断装置、レーザ切断方法及びレーザ切断システム |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004065055A1 true WO2004065055A1 (ja) | 2004-08-05 |
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ID=32750575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/000469 Ceased WO2004065055A1 (ja) | 2003-01-21 | 2003-01-21 | レーザ切断装置、レーザ切断方法及びレーザ切断システム |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20060118529A1 (ja) |
| EP (1) | EP1586407A4 (ja) |
| JP (1) | JP4290656B2 (ja) |
| CN (1) | CN100398249C (ja) |
| AU (1) | AU2003203192A1 (ja) |
| TW (1) | TW200416091A (ja) |
| WO (1) | WO2004065055A1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20060118529A1 (en) | 2006-06-08 |
| EP1586407A1 (en) | 2005-10-19 |
| AU2003203192A1 (en) | 2004-08-13 |
| EP1586407A4 (en) | 2008-08-06 |
| CN100398249C (zh) | 2008-07-02 |
| TW200416091A (en) | 2004-09-01 |
| JPWO2004065055A1 (ja) | 2006-05-18 |
| JP4290656B2 (ja) | 2009-07-08 |
| CN1652895A (zh) | 2005-08-10 |
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