EP0577842A1 - Procede et dispositif de mise en correspondance de formes pour machines a decouper automatiques - Google Patents

Procede et dispositif de mise en correspondance de formes pour machines a decouper automatiques Download PDF

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Publication number
EP0577842A1
EP0577842A1 EP93901563A EP93901563A EP0577842A1 EP 0577842 A1 EP0577842 A1 EP 0577842A1 EP 93901563 A EP93901563 A EP 93901563A EP 93901563 A EP93901563 A EP 93901563A EP 0577842 A1 EP0577842 A1 EP 0577842A1
Authority
EP
European Patent Office
Prior art keywords
pattern
characteristic point
matching
deflection
sheet material
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.)
Withdrawn
Application number
EP93901563A
Other languages
German (de)
English (en)
Other versions
EP0577842A4 (en
Inventor
Kenji Kotaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shima Seiki Mfg Ltd filed Critical Shima Seiki Mfg Ltd
Publication of EP0577842A1 publication Critical patent/EP0577842A1/fr
Publication of EP0577842A4 publication Critical patent/EP0577842A4/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005—Computer numerical control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2005/002—Performing a pattern matching operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction

Definitions

  • the present invention relates to a pattern matching method and apparatus for an automatic cutting machine which automatically marks and cuts a sheet-type material such as a patterned fabric.
  • the manufacturing of clothing or like products out of a woven or knitted fabric involves a cutting process in which individual parts such as fronts, backs, and sleeves are cut out of the fabric.
  • an automatic cutting apparatus is used for automatically cutting a single sheet or a plurality of sheets of material such as fabric, which are stacked in layers on a flat table.
  • the layout of the parts to be cut with the automatic cutting apparatus is adjusted by a marking operation which aims at obtaining the maximum number of parts from the sheet-type material by minimizing the remaining portion thereof after cutting.
  • the marking operation is performed manually, clothing patterns in the shapes of individual parts are used. It is also possible to automatically perform the marking operation by means of an automatic marking apparatus without using such clothing patterns.
  • the sheet-type material is often shifted from its intended position due to its stretching or shrinking.
  • the sheet-type material after being positioned on the table of the cutting apparatus in accordance with layout data stored in the memory of the marking apparatus, is fixed thereto with needles or the like.
  • Such procedures require a plenty of time, so that time-saving effects cannot be expected from the automatic marking and cutting of the sheet-type material.
  • the time required for cutting may be further saved by cutting a plurality of layered sheets at a time, more labor is needed to adjust the positions of the patterns.
  • the sheet-type material spread over the table of the cutting apparatus is large in size, a plurality of operators are needed to adjust the positions of the patterns on the sheet-type material.
  • Japanese unexamined patent publication No. JP A 2-277878 and Japanese examined patent publication No. JP B 1-33587 propose the improved methods of matching patterns.
  • manual marking is performed prior to cutting: first, clothing patterns in the shapes of individual parts are manually laid out on a sheet-type material to be cut so that the patterns on the sheet-type material are matched; and, then, the surface of the sheet-type material on which the clothing patterns are laid out is scanned by a scanner to obtain cutting data by image processing, followed by automatic cutting.
  • each part to be cut is provided with a point at which patterns are matched for each design: the position of each pattern on the unrolled sheet-type material is adjusted based on a matching relationship determined by the whole design with respect to the pattern-matching points, followed by automatic cutting.
  • An object of the present invention is to provide a pattern matching method and device for an automatic cutting apparatus whereby both automatic marking and cutting can be performed with respect to a patterned sheet-type material, such as a fabric, by eliminating the difference in position between the theoretical layout and real layout of the patterns so that the sheet-type material can be used efficiently.
  • the present invention provides a pattern-matching method for an automatic cutting apparatus whereby a part which needs pattern matching is cut out of a patterned sheet-type material, comprising the steps of: selecting a characteristic point of a theoretical pattern layout on the sheet-type material and storing in a memory positional data of the characteristic point and part data which indicates the position of the part which needs pattern matching with respect to the characteristic point; detecting the position of the characteristic point on the unrolled sheet-type material with patterns on the basis of the theoretical pattern layout; calculating a deflection between the detected position of the characteristic point and the positional data of the characteristic point which has been stored in the memory; and placing the part which needs pattern matching in an adjusted position on the unrolled sheet-type material with patterns, the adjusted position being determined by modifying the part data stored in the memory on the basis of the deflection calculated.
  • the invention is characterized in that, in the case where the position of the pattern-matching part pattern is adjusted and the part consequently overlaps another pattern-matching part pattern which has already had its position adjusted, the position of the pattern-matching part pattern is adjusted again on the basis of another characteristic point in another position which is different from the characteristic point detected on the sheet-type material on the basis of the theoretical pattern layout.
  • the invention is also characterized in that a part which does not need pattern matching is also cut out of the patterned sheet-type material.
  • the invention also provides a pattern-matching device for an automatic cutting apparatus whereby a part which needs pattern matching is cut out of a patterned sheet-type material fixed onto a table, comprising; a memory for storing positional data of a characteristic point which is in advance determined in a theoretical pattern layout on the sheet-type material and part data which indicates the position of the part which needs pattern matching with respect to the characteristic point; means for capturing, over the unrolled sheet-type material with patterns, the surface vision thereof in the vicinity of the position indicated by the positional data of the characteristic point stored in the memory; means for calculating, in response to an output from the vision capturing means, the deflection between the position of the characteristic point on the unrolled sheet-type material with patterns, which was detected from the surface vision, and the positional data of the characteristic point which has been stored in the memory; and means for marking which determines, in response to an output from the deflection calculating means, the position of the part which needs pattern matching on the unrolled sheet-type material with patterns by modifying the part data stored in the memory
  • the invention is further characterized in that the vision capturing means is movable over the table, and the deflection detecting means comprises: means for displaying the surface vision in the vicinity of the characteristic point in response to the output from the vision capturing means so that the position of the characteristic point stored in the memory is superpose on the surface vision being displayed; means for directing the vision capturing means to move over the table with reference to the display means; and means for calculating the deflection, in response to an output from the directing means, on the basis of the distance covered by the vision capturing means which has been moved so as to shift the characteristic point in the surface vision displayed by the display means to the position of the characteristic point superposed on the surface vision displayed.
  • the automatic cutting apparatus cuts the parts which need pattern matching out of the patterned sheet-type material.
  • Pattern matching in the cutting process is performed by modifying the part data stored in the memory.
  • the position of a part is adjusted by selecting a characteristic point of the theoretical pattern layout on the sheet-type material, calculating the positional deflection between the theoretical characteristic point and the real characteristic point on the unrolled sheet-type material, and modifying the part data on the basis of the deflection calculated.
  • the positional adjustment is repeatedly carried out for all the parts that need pattern matching, so that their theoretical pattern layouts coincide with their real pattern layouts on the sheet-type material.
  • marking can be performed by easily placing the parts which need pattern matching on the sheet-type material even when the pattern layout on the sheet-type material undergoes a change due to the elasticity or the like of the sheet-type material.
  • the modified part data or marking data is stored in the memory, based on which automatic cutting is performed.
  • the positional adjustment of the pattern-matching part pattern is continued on the basis of another characteristic point.
  • cutting is conducted based on the part data including ten parts which need pattern matching, for example, a case is supposed in which overlapping is caused by the marking procedure for the fifth part that needs pattern matching in the theoretical part data stored in the memory.
  • the data on the first to fourth parts that need pattern matching is not modified again, for their positions have already been adjusted. Marking is performed again based on the data on the remaining parts including the fifth to tenth patterns with patterns to be matched, which have not been processed yet.
  • Pattern matching is performed on the basis of the characteristic points in this marking process, similarly to the first marking process.
  • the theoretical positions of the parts which need pattern matching can easily be adjusted on the basis of the deflection of the pattern layout on the real sheet-type material.
  • marking is repeated only when necessary, so that the optimum automatic marking can be performed in accordance with real patterns on the sheet-type material. Consequently, pattern matching and marking can be carried out appropriately.
  • the part which does not need pattern matching is also cut out of the patterned sheet, so that scope for adjusting the positions of the parts which need pattern matching is enlarged by repositioning the patterns which do not need pattern matching.
  • the automatic cutting apparatus cuts parts which need pattern matching out of the patterned sheet-type material fixed onto the table.
  • the pattern matching device includes the memory, vision capturing means, deflection calculating means, and marking means.
  • the memory are stored the positional data of the characteristic point which is determined in advance in the theoretical pattern layout on the sheet-type material and the part data which indicates the positions of the parts which need pattern matching with respect to the characteristic point.
  • the vision capturing means captures the surface vision in the vicinity of the position indicated by the positional data of the characteristic point stored in the memory.
  • the deflection calculating means calculates the deflection between the positional data of the characteristic point stored in the memory and the real position of the characteristic point on the unrolled sheet-type material with patterns, so that the deflection data obtained is supplied to the marking means by feedback.
  • the marking means modifies the part data stored in the memory on the basis of the deflection calculated, so as to determine the position of the part which needs pattern matching on the unrolled sheet-type material. Since the deflection between the characteristic points is calculated in order to modify the part data and to determine the position of the part which needs pattern matching, pattern matching can be carried out easily and promptly.
  • the vision capturing means is movable over the table.
  • the deflection detecting means includes the display means and the calculating means.
  • the display means displays the vision of the vicinity of the characteristic point which was captured by the vision capturing means and superimposes, on the vision being displayed, the position of the characteristic point obtained from the content of the memory.
  • the directing means directs the vision capturing means to move over the table while capturing the vision to be displayed.
  • the calculating means calculates the deflection on the basis of the distance covered by the vision capturing means which has been moved so as to shift the characteristic point in the surface vision displayed by the display means to the position of the theoretical characteristic point superimposed on the surface vision.
  • the deflection between the characteristic point in the theoretical pattern layout on the patterned sheet-type material and the real characteristic point on the unrolled sheet-type material is calculated, and the part data is modified based on the deflection calculated, so as to position the related part which needs pattern matching on the sheet-type material. Consequently, the shift of the real pattern layout from the theoretical pattern layout is eliminated, thereby realizing automatic marking and cutting of the patterned sheet-type material. Since the position of the part which needs pattern matching is adjusted by eliminating the shift of the real pattern layout from the theoretical one on the basis of the distinct characteristic points, pattern matching can easily be carried out on the basis of the characteristic points. That is, after automatic marking is performed on the basis of the theoretical pattern layout, the marking data obtained can be modified in accordance with the unrolled sheet-type material. Since an extra spacing is not provided between each two adjacent patterns, the sheet-type material can be used efficiently.
  • the position of the part with the pattern to be matched is adjusted on the basis of another characteristic point which is different from the characteristic point detected based on the theoretical pattern layout on the sheet-type material, and therefore, the part with the pattern to be matched is repositioned only when required without changing the position of another pattern with a pattern to be matched which has already been adjusted.
  • the part with the pattern to be matched is repositioned only when required without changing the position of another pattern with a pattern to be matched which has already been adjusted.
  • the data on the first to fourth parts that need pattern matching is not modified again, for their positions have already been adjusted. Marking is performed again based on the data on the remaining parts including the fifth to tenth parts with patterns to be matched, which have not been processed yet. Pattern matching is performed on the basis of the characteristic points in this marking process, similarly to the first marking process.
  • the theoretical positions of the parts which need pattern matching can easily be adjusted on the basis of the deflection of the pattern layout on the real sheet-type material.
  • marking is repeated only when necessary, so that the optimum automatic marking can be performed in accordance with real patterns on the sheet-type material.
  • pattern matching can easily be carried out, even when the shift between the real and theoretical pattern layouts is remarkble, by repositioning parts which do not need pattern matching.
  • the vision in the vicinity of the characteristic point on the unrolled sheet-type material with patterns is captured so as to calculate the deflection between the characteristic point in the vision captured and the positional data of the characteristic point stored in the memory.
  • the deflection data is fed back so as to adjust the position of the part with the pattern to be matched in accordance with the real pattern layout on the unrolled sheet-type material with patterns, so that pattern matching can easily be carried out in the marking process.
  • the vision capturing means for capturing the vision in the vicinity of the characteristic point on the unrolled sheet-type material with patterns is movable over the table, and the deflection detecting means displays, on the display means, the surface vision from the vision capturing means together with the theoretical position of the characteristic point.
  • the directing means directs the vision capturing means to move so as to shift the real characteristic point to the theoretical characteristic point, the deflection can easily be calculated based on the distance covered by the vision capturing means, and therefore, pattern matching can be carried out easily and promptly.
  • FIG. 1 diagrammatically shows the structure of an apparatus for practicing the pattern-matching method of the present invention.
  • a cutting apparatus 1 carries out cutting in response to a head moving signal 0 transmitted from a marking apparatus 2 via a line L1.
  • the cutting apparatus provides a video signal V for a deflection controller 3 via a line L2.
  • the marking apparatus 2 supplies marking reference data M to the deflection controller 3 via a line L3.
  • the marking reference data M is produced based on the positional data of the characteristic point.
  • the deflection controller 3 calculates deflection data D, in accordance with the video signal V and the marking reference data M, and provides it with the marking apparatus 2 via a line L4.
  • the marking apparatus 2 modifies the head moving signal 0 which is provided on the basis of the deflection data D for the cutting apparatus 1 via the line L1.
  • a sheet-type material such as a fabric, which has been unrolled by an unrolling device 4.
  • the part of clothes which were cut by the cutting apparatus 1 are picked up by a pickup device 5.
  • FIG. 2 is a cross sectional view diagrammatically showing the cutting apparatus 1.
  • the cutting apparatus 1 is provided with a head portion 11 which is moved in response to the head moving signal 0 transmitted via the line L1.
  • the head portion 11 can be moved horizontally over a table 13 by a moving device 12.
  • the head portion 11 includes a cutter 11a and a camera 11b.
  • the camera 11b is attached directly to the cutter 11a.
  • a blade 11c extends vertically downward from the cutter 11a.
  • the blade 11c cuts the sheet-type material 14 laid on the table 13.
  • the surface of the table 13 is composed of a brush 13a for pulling down the sheet-type material 14 by suction to be fixed.
  • a plastic sheet 14a is superposed on top of the layers to ensure the fixing of the sheet-type material 14 onto the table 13 by suction.
  • the marking apparatus 2 shown in FIG. 1 includes a central processing unit (hereinafter referred to as CPU) 21, a monitor 22, and a memory 23.
  • the CPU 21 executes the marking and like processings and provides the head moving signal 0 for the cutting apparatus 1 via the line L1.
  • the monitor 22 displays a part to be cut and the like. Data on a part to be cut and other information are stored in the memory 23.
  • FIG. 3 is a front view diagrammatically showing the deflection controller 3 and FIG. 4 shows a vision for a monitor 31 included by the deflection controller 3.
  • the deflection controller 3 includes a deflection adjusting device 32 as well.
  • the monitor 31 displays, based on the marking reference data M provided from the marking apparatus 2 via the line L3, a reference mark 33 in the center of the screen which is superposed on the vision of the surface of the sheet-type material 14.
  • an intersecting point of a vertical pattern 40 and a lateral pattern 50 is selected as the characteristic point, so that the vision of the intersecting point is superposed on the reference mark 33 when the sheet-type material is not stretched or shrunk.
  • an arrow mark 34 shows the direction in which adjustment should be performed.
  • the deflection controll 32 comprises a deflection amount indicator 35 and operation indicator 36 so as to adjust the deflection in the direction 34 on the monitor 31.
  • the deflection amount indicator 35 includes a movement directing element 35a, which can be composed of a truck ball or the like, and a rotation directing element 35b.
  • the operation indicator 36 includes a button 36a which shows the completion of the movement or rotation directed by the deflection amount indicator 35 and a button 36b which shows the execution of various other commands.
  • the reference mark 33 serves as a reference in defining the outer configuration of a part 60 which needs pattern matching.
  • the monitor 31 may display the part 60 only partially.
  • the deflection is regulated so as to locate the reference mark 33 on the characteristic point, the deflection is also modified with respect to the other portion of the part 60 that is not displayed on the monitor 31.
  • the data on the position of the characteristic point and the data on the parts which need pattern matching relating to individual characteristic points are stored in the memory 23.
  • FIG. 5 shows the layout of parts on the sheet-type material 14 before the deflection is modified.
  • FIG. 6 shows the layout of the parts on the ideal sheet-type material 14i which is free from stretching and shrinking.
  • the sheet-type material 14 has, for example, a checkered pattern consisting of vertical lines and lateral lines. Clothes made of a fabric with such a checkered pattern definitely need pattern matching, for a mismatch of the patterns is conspicuous in this case. Consequently, vertical reference lines 41 to 45 and lateral reference lines 51 to 53 are selected so that their intersecting points serve as the characteristic points.
  • FIGS. 7 and 8 show the selection of the vertical and lateral reference lines.
  • the fabric 15 shown in FIG. 7 has a checkered pattern which is composed of the vertical pattern 40 and the lateral pattern 50. Since the vertical pattern 40 and lateral pattern 50 consist of a plurality of stripes, the lateral reference lines 50a designated by 1 and 2 and the vertical reference lines 40a designated by 3 and 4 are selected so as to produce fabric data 15a shown in FIG. 8 and store it in the memory 23 of the marking apparatus 2. In this way, the vertical reference lines 41 to 45 and lateral reference lines 51 to 53 are determined on the ideal sheet-type material 14i.
  • Parts 61 to 65 which need the patterns matching of are laid out on the basis of the intersecting points of the vertical reference lines 41 to 45 and lateral reference lines 51 to 53, which serve as the characteristic points. Parts 66 and 67 which do not need patterns matching of are laid out around the parts 61 to 65 which need pattern matching. In the case of a design other than checks, reference lines which characterize the design are similarly selected to produce the fabric data, so as to provide the characteristic points.
  • FIGS. 9 and 10 illustrate a method of selecting the characteristic point for the part 60 with a pattern to be matched with reference to the fabric data 15a.
  • the configuration of the part 60 which needs pattern matching is defined on the basis of the pattern matching reference line 60a.
  • the relationship between the pattern matching reference line 60a and the vertical and lateral patterns 40a and 50a is determined by selecting the pattern matching mark 60b as the characteristic point.
  • the pattern matching mark 60b is selected in the vicinity of the center of the part 60 where the striped design is distinct.
  • Each of the displayed regions 31a, 31b, and 31c shown in FIG. 5 is about the size of a square side 30 cm.
  • the modification in size of the sheet-type material 14 being stretched or shrunk is about 1 cm. Accordingly, it is easy for an operator to adjust the deflection, while observing the monitor 31, by means of the deflection adjusting device 3.
  • the sheet-type material 14 composed of a single sheet can be spread on the table 13 by alignment at the sides thereof, so that one operator can easily modify its position while observing the vision displayed on the monitor 31.
  • the sheet-type material 14 composed of a plurality of layers can also be cut by fixing the layers so that the pattern layout of one layer is not shifted from that of another layer, without matching the pattern layout of the real sheet-type material 14 with that of the ideal sheet-type material 14i.
  • the sheet-type material 14 can be used efficiently, which is beneficial especially when the sheet-type material 14 is expensive.
  • FIG. 11 is a flow chart showing the procedure sequences of the pattern matching method in an embodiment of the invention described above.
  • the procedures are initiated with a step a1.
  • an ideal pattern pitch which is the data on the vertical reference lines 41 to 45 and lateral reference lines 51 to 53 on the ideal sheet-type material 14i shown in FIG. 6, is inputted to the marking apparatus.
  • a step a3 as shown in FIG. 6, the parts 61 to 65 which need pattern matching and parts 66 and 67 which do not need pattern matching are laid out on the ideal sheet-type material 14i so as to carry out marking.
  • a subsequent step a4 the marking apparatus 2 transmits the head moving signal 0 to the cutting apparatus 1, so that the part which needs pattern matching is selected from the marking data and that the camera of the head portion is moved to the pattern matching point.
  • a step a5 it is examined on the monitor 31 of the deflection controller whether the pattern matching point obtained from the marking data which was marked in accordance with the ideal pitch coincides with the real pattern layout of the fabric or not.
  • a step a6 as illustrated in FIGS. 3 and 4, it is judged whether the pattern matching point from the marking data coincides with the pattern on the fabric or not. In the case of no coincidence, the camera 11b of the head portion is moved by the deflection amount indicator 35.
  • a step a8 the amount of deflection is calculated based on the movement of the camera 11b.
  • the deflection controller 3 provides the deflection data D, which shows the amount of deflection calculated, for the marking device 2.
  • the marking apparatus 2 moves the part depending on the amount of deflection.
  • a step a10 it is examined whether the pattern-matching part pattern, which has been moved, overlaps with another part or not.
  • a step a11 the presence of such overlapping is judged.
  • the procedures go on to a step a12 in which it is examined whether the overlapping is with another part of the pattern which has already been matched or not.
  • the procedures go on to a step a16 in which the pattern of another part is matched.
  • a step a17 that the previous part is the final.
  • the marking apparatus 2 transfers to the marking data the cutting apparatus 1, based on which the sheet-type material 14 is cut. Subsequently, the procedures are finished by a step a19. In the case where it is judged in the step a17 that the previous part is not the final one, the procedures from the step a4 are repeated.
  • the cutting apparatus 1 includes a controller 16 for the cutting apparatus, a circuit 17 for driving the head in the X direction, a circuit 18 for driving the head in the Y direction, a cutter-driving circuit 19 and a moving device 12. As described above, the camera 11b is attached to the moving device 12.
  • a head moving signal 0 from the marking apparatus 2 via the line L1, so as to control the moving device 12 via the driving circuits 17 and 18.
  • the marking apparatus 2 includes, in addition to the CPU 21, monitor 22 for display and memory 23, a marking operating circuit 24, a marking processing circuit 25, and a display processing circuit 26.
  • To the marking operating circuit 24 is inputted the positional data for marking on the part 60 with a pattern to be matched and the pattern matching mark 60b according to the method illustrated in FIGS. 9 and 10.
  • the marking processing circuit 25 transmits a head moving signal 0 for moving the camera 11b so as to capture the vision in the vicinity of the reference point.
  • the display processing circuit 26 executes the processing for displaying the part 60 which needs pattern matching on the monitor 22 of the marking apparatus and on the monitor 31 of the deflection controller 3.
  • the deflection controller 3 includes the monitor 31 and the deflection regulator device 32.
  • the deflection regulator device 32 includes the deflection amount indicator 35 and a video signal synthesizing circuit 37.
  • the video signal synthesizing circuit 37 synthesizes a video signal for displaying a vision on the monitor shown in FIGS. 3 and 4, in response to a video signal V transmitted from the camera 11b via the line L2 and to the marking reference data M provided from the marking apparatus 2 via the line L3, and transmits it to the monitor 31.
  • the deflection amount can be calculated based on the video signal V form the camera 11b.
  • the more accurate deflection amount can be obtained when an operator indicates the deflection amount by matching the characteristic point with the reference mark 33 in the center while observing the vision on the monitor 31.
  • part of clothes which need pattern matching can easily be cut out of the sheet-type material such as the fabric. Since it is possible to use the sheet-type material efficiently even when pattern matching is performed, they are particularly suitable for cutting the expensive sheet-type material.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Procédé et dispositif de mise en correspondance de formes pour machines à découper automatiques, utilisés pour effectuer aisément et automatiquement le marquage et le découpage d'un matériau en feuille présentant des patrons, tels que des parties de vêtements. Le matériau en feuille (14) est étalé et fixé sur une table (13) du dispositif de découpage (1). Une caméra (11b) peut se déplacer dans deux dimensions au-dessus du matériau en feuilles (14). Un signal V d'une image prise par la caméra (11b) est appliqué à un contrôleur de déviation (3) par l'intermédiaire d'une ligne (L2), et affiché sur un moniteur (31). Le moniteur (31) affiche une marque de référence, qui est superposée à l'image d'un patron, en utilisant des données de marquage de référence M qu'il reçoit d'une unité de marquage (2) par l'intermédiare d'une ligne (L3). Lorsqu'on actionne un régulateur de déviation (3) du contrôleur de déviation (3), des données de déviation D sont fournies à l'unité de marquage (2) par l'intermédiaire d'une ligne (L4), et un signal de déplacement de tête (O_) est envoyé depuis cette unité au dispositif de découpage (1) par l'intermédiaire d'une ligne (L1) pour déplacer la tête (11). Lorsque la marque de référence correspond au point caractéristique fixé d'avance sur le patron, l'opération de mise en correspondance de formes s'achève, et les données de patron sont corrigées d'une quantité de déviation par l'unité de marquage (2).
EP19930901563 1992-01-08 1993-01-07 Pattern matching method and apparatus for automatic cutting machines Withdrawn EP0577842A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP148092 1992-01-08
JP1480/92 1992-01-08

Publications (2)

Publication Number Publication Date
EP0577842A1 true EP0577842A1 (fr) 1994-01-12
EP0577842A4 EP0577842A4 (en) 1994-08-10

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Application Number Title Priority Date Filing Date
EP19930901563 Withdrawn EP0577842A4 (en) 1992-01-08 1993-01-07 Pattern matching method and apparatus for automatic cutting machines

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EP (1) EP0577842A4 (fr)
WO (1) WO1993014258A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995029046A1 (fr) * 1994-04-27 1995-11-02 Lectra Systemes Procede de numerisation et decoupe de coupons ayant des formes non repetitives
FR2731595A1 (fr) * 1995-03-17 1996-09-20 Lectra Systemes Sa Procede pour la coupe automatique de pieces dans un tissu a motif
EP0799898A2 (fr) * 1996-04-02 1997-10-08 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
GB2362596A (en) * 2000-05-26 2001-11-28 Gerber Technology Inc An apparatus and method for cutting a layup of sheet material
FR2836576A1 (fr) * 2002-02-11 2003-08-29 Gerber Technology Inc Procede et appareil d'affichage d'une image d'un materiau en feuille et de coupe de parties du materiau en feuille, et procede associe d'acquisition de donnees d'images
US6856843B1 (en) 1998-09-09 2005-02-15 Gerber Technology, Inc. Method and apparatus for displaying an image of a sheet material and cutting parts from the sheet material
CN100354780C (zh) * 2001-12-10 2007-12-12 莱茨特拉加拿大有限公司 用于切割连续片材流中预设形状的系统
CN102587106A (zh) * 2011-01-14 2012-07-18 株式会社岛精机制作所 片材的裁剪方法及自动裁剪机
CN104738861A (zh) * 2015-03-27 2015-07-01 上海和鹰机电科技股份有限公司 面料的排版与裁剪系统
CN109763312A (zh) * 2019-03-15 2019-05-17 无锡添衣有道供应链科技有限公司 自动裁床对格对条的操作方法
US11273570B2 (en) * 2018-05-25 2022-03-15 Mespack Cloud, Llc Pouch registration monitoring and control system
SE2051381A1 (en) * 2020-11-27 2022-05-28 Ikea Supply Ag Apparatus and method for automation of textile handling

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JP2006089860A (ja) * 2004-09-22 2006-04-06 Yuka & Alpha:Kk 自動柄合わせ装置および自動柄合わせ用プログラム
CN107313237B (zh) * 2017-08-08 2023-01-31 广东溢达纺织有限公司 裁片对条格自动裁割机
US10762595B2 (en) 2017-11-08 2020-09-01 Steelcase, Inc. Designated region projection printing of spatial pattern for 3D object on flat sheet in determined orientation

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EP0275794A1 (fr) * 1986-12-31 1988-07-27 Jean-Marc Loriot Procédé et dispositif de découpage d'un tissu à motif répétitif
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995029046A1 (fr) * 1994-04-27 1995-11-02 Lectra Systemes Procede de numerisation et decoupe de coupons ayant des formes non repetitives
FR2719403A1 (fr) * 1994-04-27 1995-11-03 Lectra Systemes Sa Procédé de numérisation et découpe de coupons ayant des formes non répétitives.
US5838569A (en) * 1994-04-27 1998-11-17 Letra Systemes Method of digitizing and cutting up remnants of non-repetitive shapes
FR2731595A1 (fr) * 1995-03-17 1996-09-20 Lectra Systemes Sa Procede pour la coupe automatique de pieces dans un tissu a motif
WO1996028985A1 (fr) * 1995-03-17 1996-09-26 Lectra Systemes Procede pour la coupe automatique de pieces dans un tissu a motif
US5975743A (en) * 1995-03-17 1999-11-02 Lectra Systems Method for automatically cutting portions of a patterned fabric
EP0799898A2 (fr) * 1996-04-02 1997-10-08 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
EP0799898A3 (fr) * 1996-04-02 1998-09-23 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
US6856843B1 (en) 1998-09-09 2005-02-15 Gerber Technology, Inc. Method and apparatus for displaying an image of a sheet material and cutting parts from the sheet material
GB2362596B (en) * 2000-05-26 2002-07-10 Gerber Technology Inc An apparatus and method for cutting a layup of sheet material
FR2809285A1 (fr) * 2000-05-26 2001-11-30 Gerber Technology Inc Appareil et procede pour couper et appareiller des pieces individuelles
US6502489B2 (en) * 2000-05-26 2003-01-07 Gerber Technology, Inc. Method for cutting a layup of sheet material
GB2362596A (en) * 2000-05-26 2001-11-28 Gerber Technology Inc An apparatus and method for cutting a layup of sheet material
CN100354780C (zh) * 2001-12-10 2007-12-12 莱茨特拉加拿大有限公司 用于切割连续片材流中预设形状的系统
FR2836576A1 (fr) * 2002-02-11 2003-08-29 Gerber Technology Inc Procede et appareil d'affichage d'une image d'un materiau en feuille et de coupe de parties du materiau en feuille, et procede associe d'acquisition de donnees d'images
CN102587106A (zh) * 2011-01-14 2012-07-18 株式会社岛精机制作所 片材的裁剪方法及自动裁剪机
CN104738861A (zh) * 2015-03-27 2015-07-01 上海和鹰机电科技股份有限公司 面料的排版与裁剪系统
CN104738861B (zh) * 2015-03-27 2017-03-22 上海和鹰机电科技股份有限公司 面料的排版与裁剪系统
US11273570B2 (en) * 2018-05-25 2022-03-15 Mespack Cloud, Llc Pouch registration monitoring and control system
CN109763312A (zh) * 2019-03-15 2019-05-17 无锡添衣有道供应链科技有限公司 自动裁床对格对条的操作方法
SE2051381A1 (en) * 2020-11-27 2022-05-28 Ikea Supply Ag Apparatus and method for automation of textile handling
WO2022115028A1 (fr) * 2020-11-27 2022-06-02 Ikea Supply Ag Appareil et procédé d'automatisation de manipulation des textiles

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