WO2023017918A1 - Appareil et procédé de découpe d'une feuille avec un laser - Google Patents

Appareil et procédé de découpe d'une feuille avec un laser Download PDF

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Publication number
WO2023017918A1
WO2023017918A1 PCT/KR2021/018030 KR2021018030W WO2023017918A1 WO 2023017918 A1 WO2023017918 A1 WO 2023017918A1 KR 2021018030 W KR2021018030 W KR 2021018030W WO 2023017918 A1 WO2023017918 A1 WO 2023017918A1
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WO
WIPO (PCT)
Prior art keywords
fabric
unit
cutting
sheet
laser
Prior art date
Application number
PCT/KR2021/018030
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English (en)
Korean (ko)
Inventor
이의걸
Original Assignee
주식회사 비제이
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Filing date
Publication date
Application filed by 주식회사 비제이 filed Critical 주식회사 비제이
Publication of WO2023017918A1 publication Critical patent/WO2023017918A1/fr

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    • 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
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut

Definitions

  • the present invention relates to a laser sheet cutting apparatus and method.
  • sheet-type products are manufactured through a fabric manufacturing process of manufacturing a sheet fabric and a cutting process of cutting the sheet fabric according to a pre-designed design.
  • This cutting process is performed by a cutting device with respect to supplied fabric.
  • the conventional process of cutting a sheet fabric was carried out in such a way that after supplying the fabric manually or by machine, combining a cutting mold with a press according to a design to be cut, and then press-cutting by the combined cutting mold.
  • the fabric may be twisted in the process of transferring the fabric to the press device, and there is a concern that the cut sheet designs may overlap, resulting in a decrease in work efficiency.
  • the fabric may be twisted in the process of transferring the fabric to the press device, and there is a concern that the cut sheet designs may overlap, resulting in a decrease in work efficiency.
  • the operator has to manually rearrange it, which is inefficient in terms of working time.
  • press work there are cases where additional work is required because the cut surface is not uniform, and there is also a problem in that a lot of dust is generated during the cutting process and the working environment is polluted.
  • the present invention has been made to solve the above problems,
  • the alignment unit Through the configuration of the alignment unit, the twisted fabric during supply is aligned in the correct position to improve work efficiency and quality, and through the configuration of the control unit, the loss rate of the fabric is reduced as much as possible to help reduce costs, and through the configuration of the suction unit, occurrences occur during cutting It provides a laser cutting device implemented to improve the quality of the working environment by removing dust and the like.
  • the work efficiency is greatly improved through a configuration in which the operator can automatically align it without having to manually align it, and the control unit reduces the loss rate of the fabric in advance. Since the optimal arrangement value is calculated, it is possible to improve the problem of overlapping seat designs or high fabric loss rate. In addition, since uniform and precise cutting by laser is possible, product quality can be improved, and by including the structure of the suction part, dust generated during the cutting process can be sucked in to provide the effect of making the working environment comfortable. can
  • Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.
  • FIG. 1 is a conceptual diagram schematically showing a laser sheet cutting device according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing the alignment of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 3 is a conceptual diagram showing an alignment unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 4 is a conceptual diagram showing an alignment unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 5 is a view showing the cutting portion of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 6 is a view showing the cutting portion of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 7 is a view showing a cutting control unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing a DB input unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing a DB processing unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 10 is a view showing the suction part of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 1 is a conceptual diagram schematically showing a laser sheet cutting device according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing the alignment of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 3 is a conceptual diagram showing an alignment unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 4 is a conceptual diagram showing an alignment unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 5 is a view showing the cutting portion of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 6 is a view showing the cutting portion of the laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 7 is a view showing a cutting control unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing a DB input unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing a DB processing unit of a laser sheet cutting device according to an embodiment of the present invention.
  • FIG. 10 is a view showing the suction part of the laser sheet cutting device according to an embodiment of the present invention.
  • the laser sheet cutting device 10 includes a supply unit 100 composed of a plurality of supply rollers 110 in which the fabric F is wound so that the cutting surface faces the outside, and the supply unit 100
  • Each fabric (F) supplied from may include an aligning unit 200 in which each fabric F is aligned by a plurality of positioning units, and a cutting unit 300 for cutting the fabric aligned by the aligning unit 200 with a laser.
  • the supply unit 100 includes a sheet fabric holder 140 on which a sheet fabric is placed, a tension maintaining roller 120 installed in the upper and lower parts of the frame to move the sheet fabric while tensioning it, and a tension maintaining roller
  • the guide roller 130 installed at the same height as the supply roller 110 and the sheet fabric supplied from the guide roller 130 are aligned unit 200 It may include a supply roller 110 for supplying to.
  • the supply unit 100 for example, may have a singular number or a plurality of the above configurations as one set, and is not limited to the number.
  • the alignment unit 200 includes a first support unit 210, a second support unit 220, a first position detection unit 230, a second position detection unit 240, It may include a first position adjustment unit 250, a second position adjustment unit 260 and an initial condition input module 270.
  • the first and second support units 210 and 220 maintain the fabric F supplied from the supply unit 100 at a certain height, and at the same time set the center line F0 of the fabric F to the alignment unit 200. It may be aligned to be located on the center line M0 in the width direction (eg, the width direction of the transfer frame in which the original fabric F is transferred) or a line deviated by a certain width in parallel to the left or right from the center line M0.
  • the first and second position detecting units 230 and 240 respectively irradiate laser light in the width direction of the original fabric F to detect deviation to the left or right of the original fabric F, and at the same time,
  • Both ends L1 and L2 of the far end F and regions L4 and L5 outside the both ends may be photographed at regular intervals and image data captured may be transmitted to the control unit 500 .
  • the first position adjusting unit and the second position adjusting unit 250, 260 have both sides of the original fabric F photographed by the first to fourth photographing units of the first and second position detecting units 230 and 240.
  • the image data of the ends L1 and L2 and the regions L4 and L5 outside the both ends are received from the control unit 500,
  • the width of the fabric (F) is moved to the right or left by being in contact with the upper surface of the fabric (F) passing through the upper portions of the first and second support units (210, 220), respectively.
  • the directional center line F0 may be adjusted to coincide with the center line M0 in the width direction of the aligning unit 200 or a line deviated from the center line M0 by a certain width in parallel to the left or right.
  • the first and second steering rollers 251 which are further included in the first and second position adjusting units 250 and 260, play a role of directly adjusting the position of the fabric F by contacting the fabric F.
  • the first and second steering rollers (251, 261) can be in charge and when a plurality of fabrics (F) are overlapped, the first and second steering rollers (251, 261) further close the contact distance with the upper surface of the fabric (F) and are located at the bottom Even the position of the fabric (F) can be adjusted.
  • both ends L1 and L2 of the fabric F and the The areas L4 and L5 deviated from both ends are photographed at regular intervals, and the captured image data is transmitted to the controller 500.
  • control unit 500 calculates the received image data and compares whether or not the center line F0 of the far end F, which is set in advance, coincides with the center line M0 of the alignment unit,
  • the control unit 500 directs the first steering roller 251 to the right side.
  • the right direction change signal is transmitted to change the direction to , and the first steering roller 251 that receives it gradually changes the direction to the right to match the center line of the original fabric F.
  • control unit 500 After matching, the control unit 500 transmits a home position signal so that the first steering roller 251 is returned to the front position, and accordingly, the first steering roller 251 gradually changes direction toward the front. .
  • the initial condition input module 270 may input initial conditions of the far end F, the first position adjusting unit 250 and the second position adjusting unit 260 to the control unit 500 .
  • the initial conditions include data on the length, width, and thickness of the fabric F, center line M0 data of the first and second position adjusting units 250 and 260, and center line F0 data of the fabric. It refers to data that is set to deviate from the center line M0 in the width direction of the first and second position adjusting units 250 and 260 in parallel to the left or right by a certain width.
  • the original fabric F matches the center line F0 in the width direction of the original fabric F with the center line M0 of the aligning unit or a line deviated by a predetermined width in parallel to the left or right from the center line. After each is aligned, it moves to the cutting part 300 to be described later. Therefore, before being cut in the cutting unit 300 by the laser, since a single fabric or a plurality of fabrics can be aligned in place, precise cutting is possible and the defect rate can be remarkably reduced.
  • the cutting unit 300 may include a laser head 310, a driver 320, and a cutting control unit 340.
  • the laser head 310 may cut a pre-designed and stored sheet design with a laser.
  • laser cutting technology can be applied not only conventionally known technology but also laser cutting technology developed in the future.
  • the driver 320 allows the laser head 310 to be mounted and to move along the design of the sheet input to the control unit 500 on the original fabric F. More specifically, since the sheet cutting operation is a two-dimensional operation, the laser head 310 has a first operating means 321 capable of moving in the x-axis direction and a second operating means 322 capable of moving in the y-axis direction. can include
  • the first operating means 321 includes a horizontal rail 3211 on which the laser head 310 is installed, a first timing belt 3212 for transporting the horizontal rail 3211, and a first belt drum 3213 for driving the timing belt. ), the drive belt 3214 that transfers the rotation of the first drive motor 3215 to the first belt drum 3213 and the first drive installed below the transfer table and moving in the y-axis direction together with the horizontal rail 3211 It is composed of a motor 3215.
  • the second operating means 322 is a vertical rail 3221 installed on both edges of the transfer table and on which both ends of the horizontal rail 3211 are placed, and the horizontal rail 3211 is on the vertical rail 3221 in the y-axis direction.
  • a second timing belt 3222 for moving the second belt 3222, a second belt drum 3223 to which the second timing belt 3222 is connected, and a connection between the second belt drum 3223 and the opposite first belt drum 3213. consists of a connecting shaft 3224 that transmits rotation of the second drive motor 3226 to the second belt drum 3223, a drive belt 3225 that transmits rotation, and a second drive motor 3226 fixed to one side of the lower frame of the transfer table. do.
  • the x-axis work is performed by the first driving motor 3215 and the first timing
  • the belt 3212 is used
  • the y-axis operation is performed using the second drive motor 3226 and the second timing belt 3222
  • the laser head 310 moves the end portion 345 through the x-y axis movement as described above.
  • the sheet is cut with a laser while moving along the movement path stored in
  • the cutting control unit 340 includes a control unit 341 that allows an operator to automatically drive and control the cutting unit 300, and a driving unit that receives an operation signal from the operation unit 341 and controls the components of the cutting unit 300.
  • a display unit 343 for viewing the operating state of each component a design storage unit 344 for storing existing seat designs or designing and modeling new seat designs with a CAD program, and a laser head ( 310) sets and stores the movement path and movement distance for cutting the fabric according to the sheet design designed in the design storage unit 344, and the design information and the movement route and movement distance information of the laser head 310 are stored in the design storage unit 344.
  • It consists of a control unit 341 and a terminal unit 345 transmitting to the drive unit 342.
  • the cutting part 300 may further include a vacuum generating device 350 .
  • the vacuum generator 350 is installed below the cutting unit 300 and when operated, the sheet fabric stopped during transportation is tightly fixed to the transfer table so that accurate cutting can be achieved during the laser cutting operation.
  • the tension maintaining roller 120 moves the sheet fabric
  • the sheet fabric (F) is supplied to the guide roller 130 while adjusting the appropriate tension in (F).
  • the sheet fabric F is supplied to the transfer table through the guide roller 130 and the supply roller 106 so that the fabric is placed on the transfer table.
  • the aligning unit 200 allows the fabric to be positioned in the correct position through an aligning process.
  • the laser head 310 sprays a laser beam to cut into the shape of the sheet input to the terminal unit 345.
  • a sheet is designed and modeled in the design storage unit 344 using a program such as CAD in advance for the cutting path, and then the modeled A process of optimizing and setting the movement path of the laser head 310 for cutting the shape of the sheet and storing the data in the terminal unit 345 of the cutting control unit 340 is performed.
  • the control unit 500 may further include a DB input unit 510, a DB processing unit 520, and a DB output unit 530.
  • the DB input unit 510 may receive input of movement range data, far-end data, and sheet data of the laser head 310 from the user, respectively.
  • the DB input unit 510 may include a laser movement range input unit 511, a far-end information input unit 512, and a sheet information input unit 513.
  • the laser movement range input unit 511 may receive data regarding an available movement range of the laser.
  • the far-end information input unit 512 may receive data on a far-end.
  • the data may include information such as fabric size, width, material, and thickness.
  • the fabric is rectangular and can be made with enough area to place all the seat designs.
  • the sheet information input unit 513 may receive data about a sheet.
  • the data on the sheet may include information such as the size of the sheet, the shape of the sheet, the coordinate information of the sheet design on a plane, the sheet material, and the thickness.
  • a design including curves it may be converted into a grid design through a grid process.
  • the DB processing unit 520 may calculate an optimal arrangement value on the original fabric for minimizing the loss rate of the original fabric based on the data input to the DB input unit 510 .
  • the DB processing unit 520 may calculate an optimal placement value of the pattern on the original fabric through an automatic optimal placement algorithm program.
  • the DB processing unit 520 includes an evaluation function determining unit 521, an arrangement order determining unit 522, a search area designation unit 523, an evaluation function value calculating unit 524, and an optimal sheet arrangement calculating unit 525. ) may be included.
  • the evaluation function determining unit 521 may determine an evaluation function for calculating an optimal arrangement value on the original fabric F of the sheet design based on the movement range data of the laser head 310, the original fabric data, and the sheet data. there is. In more detail, the following [Equation 1] may be determined as an evaluation function.
  • the evaluation function determination unit 521 may define specific values such as the following [Table 1] to calculate the evaluation function for optimal placement.
  • evaluation function determination unit 521 may determine the evaluation function as follows using the above specific value.
  • R4 Rectangular area / X-Enclosure area
  • R5 Rectangular area / Y-Enclosure area
  • R4 and R5 are arranged respectively It is an element for the shape to proceed in the direction of becoming a rectangle
  • R6 Shape match area / Enclosure area
  • R6 is optimal for placing small designs between gaps in fixed shapes This is an element for cases where the design to be located or arranged is covered by the surrounding shape, so that the X-Enclosure area or Y-Enclosure area has a constant value for each search position. .
  • the arrangement order determining unit 522 may determine the arrangement order of the sheet designs disposed on the original fabric F. More specifically, the arrangement order of the seat designs may be determined in order from a design having a large area to a design having a small area.
  • the search area designation unit 523 may designate a search area for a sheet design disposed on the original fabric F. More specifically, by automatically limiting the placement point of the seat design within the search area, unnecessary search can be reduced and execution time can be shortened.
  • the evaluation function value calculation unit 524 may calculate evaluation function values for all positions and rotational angles of the seat design to be disposed within the search area through the evaluation function.
  • the optimal seat arrangement calculation unit 525 may calculate the optimal arrangement value on the original fabric F of the seat design by calculating the position and rotation angle of the pattern having the smallest evaluation function value among the evaluation function values. More specifically, after calculating the coordinate values and the rotation angle corresponding to the optimal position on the original fabric F of the seat design as the optimal arrangement value of the seat design, the seat design can be arranged at the corresponding coordinate value and the corresponding rotation angle.
  • the laser sheet cutting device may further include a suction part 400.
  • the suction unit 400 is installed on one side of the driver 320 facing the laser head 310 and facing the cut surface of the fabric F, so that by-products generated from the cut surface can be suctioned and removed.
  • the installation position of the suction unit 400 is not limited thereto.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

La présente invention concerne un appareil et un procédé de découpe d'une feuille au laser, l'appareil de coupe étant caractérisé en ce qu'il comprend : une unité d'alimentation composée d'une pluralité de rouleaux d'alimentation sur lesquels un tissu est enroulé de telle sorte qu'une surface de coupe est tournée vers l'extérieur ; une unité d'alignement dans laquelle chaque tissu fourni par l'unité d'alimentation est aligné par une pluralité d'unités de positionnement ; et une unité de coupe pour couper le tissu aligné par l'unité d'alignement avec un laser, et le procédé de coupe étant caractérisé en ce qu'il comprend les étapes consistant à : fournir un tissu ; aligner la position du tissu ; concevoir une coupe ; et découper au laser.
PCT/KR2021/018030 2021-08-10 2021-12-01 Appareil et procédé de découpe d'une feuille avec un laser WO2023017918A1 (fr)

Applications Claiming Priority (2)

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KR1020210105421A KR102326533B1 (ko) 2021-08-10 2021-08-10 레이저 시트 재단 장치
KR10-2021-0105421 2021-08-10

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Publication number Priority date Publication date Assignee Title
KR102326533B1 (ko) * 2021-08-10 2021-11-15 주식회사 비제이 레이저 시트 재단 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101628326B1 (ko) * 2015-01-16 2016-06-08 (주)엔에스 시트 절단 장치 및 절단 방법
JP2018022554A (ja) * 2016-08-01 2018-02-08 オー・エム・シー株式会社 原反加工方法とその装置並びに装置を使用したタブ抜き加工方法
KR20200000959A (ko) * 2018-06-26 2020-01-06 주식회사알투웍스 메탈필름롤 재단시스템
KR102082620B1 (ko) * 2019-12-09 2020-02-27 박은섭 원단 자동재단 시스템 및 그 제어방법
KR102326533B1 (ko) * 2021-08-10 2021-11-15 주식회사 비제이 레이저 시트 재단 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101628326B1 (ko) * 2015-01-16 2016-06-08 (주)엔에스 시트 절단 장치 및 절단 방법
JP2018022554A (ja) * 2016-08-01 2018-02-08 オー・エム・シー株式会社 原反加工方法とその装置並びに装置を使用したタブ抜き加工方法
KR20200000959A (ko) * 2018-06-26 2020-01-06 주식회사알투웍스 메탈필름롤 재단시스템
KR102082620B1 (ko) * 2019-12-09 2020-02-27 박은섭 원단 자동재단 시스템 및 그 제어방법
KR102326533B1 (ko) * 2021-08-10 2021-11-15 주식회사 비제이 레이저 시트 재단 장치

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