JP2013049933A - Method and apparatus for cutting fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable cutting out of fabric parts for a raw fabric in which a part pattern is different for each pattern section to flexibly and quickly respond to a need by a purchaser who is to buy clothing and also to suppress a steep rise of cost.SOLUTION: A raw fabric W is prepared in which parts patterns H,Hare displayed in a plurality of pattern sections L,Lin a longitudinal direction, and a cutting code Cfor instructing a next cycle program is displayed in each of the pattern sections L,L. While cutting out the part pattern H displayed in the pattern section L, the cutting code Cis read by a code reader 17, and cutting data associated with the cutting code Cread by the code reader 17 is read from accumulated data to produce a next cycle program, and the part pattern Hdisplayed in the pattern section Lthat is next to be cut is cut based on the next cycle program.

Description

  The present invention relates to a fabric cutting method and a fabric cutting apparatus that can be suitably employed when cutting a fabric part from a material fabric.

  As a fabric cutting device for cutting out body parts such as the body and sleeves used in the production of clothing from the material fabric, the cutting head equipped with a rotary blade such as a round blade is moved up and down on the cutting table, horizontally swiveled, and swivel angle Are well known in the art to perform linear movements with fixed movements, pseudocurve movements, etc. (hereinafter collectively referred to as “moving operations”) while simultaneously performing a horizontal micro-turn (see, for example, Patent Document 1) ). As a material material to be cut, it is common to use a long material in a strip shape unwound from a material roll.

By the way, when displaying a part pattern (a display object obtained by printing the shape of a fabric part to be cut out with an inkjet device) in a plurality of pattern sections assumed along the longitudinal direction of the material cloth There is. In many cases, a part pattern (plural or single) used for one piece is arranged in each pattern section.
In such a case, the material cutting apparatus needs to set a cutting program corresponding to each pattern section prior to cutting. The cutting program assumes that various cutting conditions (moving speed of the rotary blade, feed conditions, etc.) are added to cutting data that combines the number of parts pattern placement (contour coordinates) within the pattern section. Composed. A wide variety of cutting data and cutting conditions (hereinafter sometimes simply referred to as “cutting data, etc.”) are stored in advance in the database, and a suitable one is read from the database. That is, the cloth cutting device performs cutting while moving the cutting head in accordance with the cutting program generated based on the cutting data and the like.

JP 2000-1119950 A

  The needs of purchasers of clothing and the like (including not only end users but also retailers) are diverse because their tastes such as colors and patterns vary widely as well as their body shape and size. In order to meet these diverse needs, when preparing a long strip of fabric (a series of continuous fabrics), each pattern section is arranged with a mixture of part patterns according to different needs. There is a need. Therefore, naturally, there may be cases where the shape, size, arrangement, and number of arrangements of part patterns differ between adjacent pattern sections.

  However, if a material part is cut out for a material cloth having a different shape, size, arrangement, and number of part patterns for each pattern section, cutting of one pattern section starts. Each time, cutting data or the like, that is, a cutting program must be generated, which leads to complicated work and extremely low work efficiency.

In addition, if the operator manually sets cutting data etc. (generation of cutting program), there is a problem in that defective products due to human error (decrease in yield as material fabric) are also caused. It was.
This invention is made | formed in view of the said situation, Comprising: The material part is cut out for the material material | dough from which the shape of a part pattern, a magnitude | size, arrangement | positioning, and arrangement number differ for every pattern division. At the time, the setting of cutting data for each pattern section (generation of a cutting program) can be performed easily, quickly and reliably, and it can respond flexibly and quickly to the needs of purchasers who want to purchase clothing, etc. An object of the present invention is to provide a cloth cutting method and a cloth cutting apparatus capable of suppressing an increase in cost.

In order to achieve the above object, the present invention has taken the following measures.
That is, in the cloth cutting method according to the present invention, a part pattern indicating a cloth part is displayed in each of a plurality of pattern sections that are long in the shape of a belt and assumed along the longitudinal direction, and each pattern section includes the pattern section or its downstream. Prepare a material fabric with a cutting code indicating the next cycle program to cut out the part pattern from the pattern section arranged on the side, and carry in from carry-in to cut-out of the part pattern displayed in one pattern section The cutting code is read by a code reader that reads the cutting code in a series of cycle operations, and cutting data associated with the cutting code read by the code reader is read from accumulated data to generate a next cycle program. Next based on the generated next cycle program Characterized by cutting the part pattern displayed on the pattern section of cutting.

  When preparing the material fabric, a point mark indicating the opposite side position in the fabric width direction is displayed together with the part pattern and the cutting code, and when the cutting code of the material fabric is read by the code reader Prior to this, the point marks on both sides in the width direction are detected from the material fabric, and the cutting code is moved while moving the code reader following a virtual line obtained by connecting the detected point marks or a straight line parallel thereto. It is better to read.

When preparing the material fabric, the point marks on both sides in the fabric width direction are arranged corresponding to each other between two adjacent pattern sections, and on the imaginary line obtained by connecting these two point marks to each other. The cutting cord is preferably arranged on a parallel straight line.
The movement of the code reader is preferably performed depending on the movement when a virtual line obtained by connecting point marks on both sides in the fabric width direction or a straight line parallel thereto is largely cut.

When preparing the material dough, it is preferable that an independently selected part pattern is assigned and displayed for each pattern section.
On the other hand, the cloth cutting device according to the present invention displays a part pattern indicating a cloth part in a plurality of pattern sections that are long in the shape of a belt and are assumed along the longitudinal direction, and each pattern section includes the pattern section or its downstream. In a cloth cutting apparatus for cutting out a part pattern of each pattern section for a material cloth on which a cutting code indicating a next cycle program for cutting out a part pattern from a pattern section arranged on the side is displayed, A cutting table that supports one pattern section in an expanded state, a cutting head that is provided above the cutting table and cuts a material cloth on the cutting table, and a head that moves the cutting head up and down, horizontally swivels, and moves horizontally. A moving mechanism and a material provided with the cutting head provided in the head moving mechanism Based on a code reader that reads a cutting code from a material fabric while moving in the width direction of the ground, a database that stores a plurality of types of cutting data associated with a plurality of types of cutting codes, and a cutting code read by the code reader The next cycle setting unit that reads cutting data from the database to generate the next cycle program and the next cycle program generated by the next cycle setting unit when the cycle operation of the current cycle is finished are replaced for the cycle operation of the current cycle. And a current cycle setting unit for driving the head moving mechanism.

  When the point mark indicating the opposite side position in the fabric width direction is displayed on the material fabric, the head moving mechanism moves along the width direction of the material fabric together with the cutting head while moving from the material fabric to both sides in the width direction. A detection device for detecting a point mark is provided, and the current cycle setting unit moves the code reader along a virtual line obtained by connecting the two point marks detected by the detection device or a straight line parallel thereto. The head moving mechanism may be driven.

In the dough cutting method and dough cutting apparatus according to the present invention, when cutting out dough parts for material dough having different shape, size, arrangement, and number of parts pattern for each pattern section, Setting of cutting data and the like for pattern sections (generation of cutting program) can be performed easily, quickly and reliably, and as a result, it can respond flexibly and quickly to the needs of purchasers who want to purchase clothing etc. It is possible to suppress an increase in cost.

It is the top view which showed one Embodiment of the raw material cloth made into the cutting object with the cloth cutting method which concerns on this invention. It is the side view which showed one Embodiment of the cloth cutting apparatus which can be used conveniently when implementing the cloth cutting method which concerns on this invention. It is an AA arrow directional view of FIG. It is the flowchart explaining the cloth cutting method which concerns on this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an embodiment of a material dough W to be cut by the dough cutting method according to the present invention, and FIGS. 2 and 3 are suitable for carrying out the dough cutting method according to the present invention. 1 shows an embodiment of a fabric cutting apparatus 1 that can be used.
In the fabric cutting method according to the present invention, when cutting out a fabric part so as to match or follow the contour of the part pattern H displayed on the material fabric W, a cutting program for the next cycle ( In the following, a cutting code C ₁ for setting the “next cycle program”) is displayed, and this cutting code C ₁ is read during operation of the current cycle (cutting out the fabric part). In preparation for the next cycle.

First, the material dough W to be cut in the present invention will be described.
The material dough W is, for example, a belt-like long material unwound from a dough roll. The material quality and thickness of the material fabric W are not limited at all, and may be a natural material or a synthetic fiber material, or may be a nonwoven fabric or the like depending on the case.
As shown in FIG. 1, a part pattern H, a cutting code C, and point marks P1 to P8 are displayed on the material cloth W. The part pattern H, the cutting code C, and the point marks P1 to P8 are arranged for each of a plurality of pattern sections L assumed at predetermined intervals along the longitudinal direction (left and right direction in FIG. 1) of the material cloth W. It has come to be.

  The part pattern H is obtained by printing (displaying) the shape of the fabric part to be cut out on the material fabric W using an inkjet device or the like. In each pattern section L, it is preferable to arrange a part pattern H used for one piece of clothing. In other words, the pattern section L is preferably defined as an area for arranging a part pattern H used for one piece of clothing.

  However, it is not particularly limited whether or not the part pattern H arranged in one pattern section L is used for one piece of clothing. Of course, the number of arrangement of the part patterns H is not limited, and only one part pattern H may be arranged in each pattern section L according to the size or shape of the part pattern H, or a plurality of part patterns H may be arranged. It is good also as what arranges. In the example shown in the drawing, the pattern section L is defined by the partition lines D so that the pattern sections L are visually clear. However, the partition lines D can be omitted.

Hereinafter, for convenience of explanation, a pattern section to be cut out in the current cycle operation is set to “L”, a part pattern displayed in the pattern section L is set to “H”, and a cutting code is set to “C”. Then, the adjacent pattern section on the next side of the pattern section L (the right side in FIG. 1) is “L ₁ ”, the part pattern displayed in this pattern section L ₁ is “H ₁ ”, and the cutting code is “C”. ₁ ”. That is, the part pattern H ₁ displayed in the next pattern section L ₁ is cut out by the next cycle operation.

The cutting code C is, for example, a one-dimensional code (so-called bar code or the like) or a two-dimensional code (so-called QR code or the like). By using a code reader, data (various information) can be read in a contact or non-contact manner. It has become. Except for the condition that at least one cutting code C is arranged for each pattern section L, the arrangement and the number of arrangements for the pattern section L are not limited. Therefore, it may be arranged inside the pattern section L, or may be arranged outside the pattern section L (that is, in another pattern section adjacent on the front side or the next side).

In the present embodiment, the pattern section L is arranged so as to be close to the partition line D at a position closer to the front (left side in FIG. 1).
This cutting code C indicates a cutting program for cutting out the part pattern H from the pattern section L. As described above, the cutting program uses various cutting conditions (moving speed of the rotary blade 12 to be described later) on cutting data obtained by combining the arrangement (contour coordinates) of the part pattern H in the pattern section L by the number of arrangements of the part pattern. And feed conditions etc.).

  A variety of such cutting data and cutting conditions (“cutting data, etc.”) are stored in advance in the database 23 (see FIG. 2) provided in the fabric cutting apparatus 1, and a cutting code is stored therein. Read out what is instructed by C and combine them. The cutting code C may be printed (displayed) on the material cloth W by an ink jet apparatus or the like simultaneously with the part pattern H.

The point marks P <b> 1 to P <b> 8 are displayed on the material fabric W so as to surround the pattern section L. In other words, these point marks P1 to P8 specify the size and arrangement of the pattern sections L with respect to the material cloth W.
Specifically, the point marks P1, P2 are arranged in the vicinity of one side of the material cloth W in the side direction, and the point marks P3, P4 are adjacent to the opposite edge of the material cloth W. Thus, they are spaced apart in the side direction at the same interval as the point marks P1, P2. The point mark P1 and the point mark P3, and the point mark P2 and the point mark P4 are arranged so as to indicate opposite side positions facing each other in the fabric width direction (vertical direction in FIG. 1).

In the present embodiment, intermediate marks P5 and P6 in the longitudinal direction of the cloth are displayed in the middle between the point marks P1 and P2 and in the middle between the point marks P3 and P4, respectively, and in the middle between the point marks P1 and P3. It is assumed that intermediate marks P7 and P8 in the fabric width direction are respectively displayed between the marks P2 and P4.
In the pattern section L, even if an indirect positional relationship occurs between the arrangement of the part pattern H and the arrangement of the point marks P1 to P8, no direct and unambiguous positional relationship is provided. . Therefore, for example, even if the part pattern H is changed, it is not necessary to change the arrangement of the point marks P1 to P8 with respect to the pattern section L.

These point marks P <b> 1 to P <b> 8 may be printed (displayed) by the ink jet apparatus or the like simultaneously with the part pattern H and the cutting code C. However, it is not necessary to be simultaneous, and methods other than textile printing (for example, changing the knitting structure of the material fabric W itself, providing irregularities and holes, or attaching adherents such as adhesives and seals) Display method).
By the way, when displaying the part pattern H with respect to the material cloth W, the part pattern H selected independently can be allocated and displayed for each pattern section L. That is, “individually selected part pattern H” means that the part pattern H is selected without any unity or relevance. For example, there is a case where a purchaser of clothing selects a part pattern H by appropriately combining sizes, shapes, colors, patterns, and the like based on the desired sensitivity and request.

  Further, “assigned and displayed for each individual pattern section L” means that the selected part pattern H is arranged along the longitudinal direction of the material fabric W without any uniformity or relevance. Say to line up against. For example, every time a purchaser of clothes (which may be the same person or a different person) selects a part pattern H, the part pattern H is assigned to each pattern section L according to the selection order.

In short, when the part pattern H is displayed in each pattern section L of the material fabric W in this way, a different part pattern H is displayed for each adjacent pattern section L (such as the relationship between L and L ₁ ). (H and H ₁ are different). In this case, naturally, the cutting codes C and C ₁ indicate different cutting programs between the pattern sections L and L ₁ .

Next, the fabric cutting device 1 will be described.
As shown in FIGS. 2 and 3, the dough cutting apparatus 1 includes a cutting table 2 that supports the material dough W in an unfolded state, and a material dough W on the cutting table 2 that is provided above the cutting table 2. A cutting head 3 for cutting and a head moving mechanism 4 for moving the cutting head 3 up and down, horizontally turning, and horizontally moving are provided.

  The cutting table 2 shows what was formed as the upper part 6a of the belt conveyor 6. FIG. The belt conveyor 6 is configured to allow an endless belt having air permeability (for example, a felt material or a screen material) to run continuously or intermittently in one direction by a belt drive unit 7 (during cutting, the belt conveyor 6). Is good to stop). Therefore, it is possible to efficiently carry the material dough W (unrolled from the dough roll 5) to the cutting position or to carry it out downstream after cutting out the dough parts.

The belt conveyor 6 is provided with a suction head 8 below the upper portion 6a (the cutting table 2). The suction head 8 is formed in a compact size that sucks only the area corresponding to the lower part of the cutting head 3 (rotating blade 12 described later), and is integrated with the cutting head 3 at the upper and lower portions sandwiching the cutting table 2. A suction unit moving mechanism 9 is provided to move horizontally.
The suction head 8 is connected to a suction device 11 such as a vacuum generator or a blower via a flexible hose 10. Therefore, by operating the suction device 11, the air on the cutting table 2 can be sucked down the table surface, and the material cloth W on the cutting table 2 can be sucked and held on the table surface. As a result, the material dough W can be easily and reliably cut by the cutting head 3.

The cutting table 2 is not limited to be configured by the belt conveyor 6 and can be formed by a fixed plate. The suction head 8 may also be configured to suck the entire lower surface of the cutting table 2.
The cutting head 3 is configured such that a rotary blade 12 such as a round blade is driven to rotate about a horizontal axis. In addition to the rotary blade 12, it is also possible to employ a notch blade type that moves up and down at high speed, or a laser type.

  The head moving mechanism 4 combines the cutting head 3 by appropriately combining the feeding direction of the belt conveyor 6 (X direction shown in FIG. 3) and the direction perpendicular to the feeding direction in the horizontal plane (Y direction shown in FIG. 3). A feed unit 13 that horizontally moves, a turning unit 14 that horizontally turns the cutting head 3 so that the cutting edge of the rotary blade 12 matches the moving direction of the feed unit 13, and a lower end of the rotary blade 12 is a material on the cutting table 2 It has the raising / lowering part 15 which raises / lowers the cutting head 3 between the height which contacts the fabric W, and the upper direction.

  The horizontal movement mechanism of the feed unit 13, the horizontal swing mechanism of the swivel unit 14, and the lift mechanism of the lift unit 15 may be a winding drive mechanism, a feed screw mechanism, a gear mechanism, or a fluid pressure (air pressure, etc.) actuator as appropriate. What is necessary is just to comprise and combine. Further, a position controllable motor such as a stepping motor or a servo motor may be used as a drive source at a portion where high accuracy is required for the stop position, and the detailed structure thereof is not limited at all.

  The head moving mechanism 4 is provided with a code reader 17 and a detection device 18. The code reader 17 is for reading the cutting code C from the material cloth W, and a CCD type or a laser type can be used. The detection device 18 is for detecting the point marks P1 to P8 from the material cloth W, and is constituted by a camera or the like equipped with a CCD image sensor.

Both the code reader 17 and the detection device 18 are moved when the cutting head 3 is moved horizontally by the feed unit 13 (at least when moved in the cloth width direction of the material cloth W (Y direction shown in FIG. 3)). The portion that moves integrally with the cutting head 3 is provided downward (with the detection surface facing the cutting table 2).
When the head moving mechanism 4 moves the cutting head 3 in the cloth width direction, the cutting head 3 holds the turning angle parallel to the cloth width direction by the operation of the turning unit 14. Yes. When the cutting edge of the rotary blade 12 at this time is moved in the fabric width direction while being matched with the partition line D of the material fabric W, the code reader 17 just points the point marks P2, P4 on both sides in the fabric width direction. The code reader 17 and the rotary blade 12 are relatively disposed so as to pass on the virtual line obtained by the connection (the attachment position of the code reader 17 with respect to the head moving mechanism 4 is set).

The fabric cutting apparatus 1 configured as described above is provided with a drive control unit 20 for driving and controlling the head moving mechanism 4. The drive control unit 20 includes a current cycle setting unit 21, a next cycle setting unit 22, and a database 23.
As described above, the database 23 stores a plurality of types of cutting data and cutting conditions (“cutting data, etc.”) associated with a plurality of types of cutting codes C (see FIG. 1).

The next cycle setting unit 22 sends necessary cutting data and the like from the database 23 based on the cutting code C read by the code reader 17 (here, the cutting code C ₁ in which the cutting program for the next cycle is set). The next cycle program is generated by reading.
The current cycle setting unit 21 basically controls driving of the head moving mechanism 4 so as to cut the part pattern H displayed in the pattern section L. The next cycle program generated by the next cycle setting unit 22 is used as the data for driving and controlling the head moving mechanism 4, that is, the program for executing the current cycle.

That is, when the current cycle setting unit 21 finishes the cycle operation of the current cycle and the next cycle has been set (when the cutting code C ₁ has been read), the current cycle setting unit 21 will The cutting program set for the cycle operation of the cycle is deleted (or stored), and instead, the next cycle program generated by the next cycle setting unit 22 based on the cutting code C ₁ is replaced for the cycle operation of the current cycle. Like that.

Specifically, the driving of the head moving mechanism 4 by the current cycle setting unit 21 is first integrated with the cutting head 3 to move the detection device 18 to the display positions of the point marks P1 to P8. It starts with letting you detect. At this time, the current cycle setting unit 21 follows an imaginary line obtained by connecting the point marks P2 and P4 on both sides in the fabric width direction among the point marks P1 to P8 detected by the detection device 18, or a straight line parallel thereto. The head moving mechanism 4 is driven so that the code reader 17 moves. Needless to say, the code reader 17 is moved so that the code reader 17 reads the cutting code C ₁ for setting the next cycle program.

In the present embodiment, as described above, the cutting code C (C ₁ ) is arranged so as to be close to the partition line D at a position closer to the front (left side in FIG. 1) in each pattern section L (L ₁ ). Is arranged. Furthermore, the cutting code C (C ₁ ) is arranged on an imaginary line obtained by connecting the point marks P1, P3 on both sides in the fabric width direction. Under such circumstances, the current cycle setting unit 21 drives the head moving mechanism 4 so that the code reader 17 moves on a virtual line obtained by connecting the point marks P1 and P3.

Of course, by a virtual line obtained by connecting the point marks P1, P3 code reader 17 is moved, code reader 17 during this movement passes over cutting code C ₁ to the setting of the next cycle program As a result, the cutting code C ₁ can be read by the code reader 17.
Further, as described above, when the code reader 17 passes over the cut cord C _1, as the rotary blade 12 of the cutting head 3 is moved over the division line D, the relative code reader 17 and the rotary blade 12 Is arranged. Therefore, the current cycle setting unit 21 is on a virtual line obtained by connecting the point marks P1 and P3 so as to depend on the movement for making a major cut at the division line D (separating the material cloth W for each pattern division L). Thus, the code reader 17 can be moved, and it is not necessary to move the code reader 17 purposely.

In other words, since the operation of reading the cutting code C ₁ by the code reader 17 can be included in the operation of largely cutting along the lane marking D, the cycle operation can be simplified and the cycle operation time can be shortened (high efficiency). It will be.
On the other hand, when the head moving mechanism 4 moves the detection device 18 to the display position of each point mark P1 to P8 as the first driving procedure, the detection device 18 detects the point marks P1 to P6 by the image matching method. be able to. The image matching method refers to a discrimination method in which data detected as image data is matched with image data stored in advance to read out related predetermined coordinates (such as the center point of the image).

  In this case, the current cycle setting unit 21 uses the detected point marks P <b> 1 to P <b> 8 to generate the expansion / contraction ratio (the degree of expansion / contraction that occurs when the material cloth W is subjected to a printing process or the like). ), And based on this expansion / contraction ratio, the correction data corresponding to the positional deviation of the part pattern H and the deformation of the part pattern H (expansion deformation and distortion deformation) is created, and with this correction data, the cutting program for the current cycle is created. It is good to do correction.

  In order to obtain the expansion / contraction rate generated in the pattern section L, for example, as follows. That is, first, two sections having a half area formed by equally dividing the short side of the pattern section L into two (a section surrounded by point marks P1-P2-P8-P7-P1 and a point mark P3-P7-P8). -P4-P3), and the expansion / contraction rate is obtained for each of these two divisions.

Next, two sections having a half area formed by dividing the long side of the pattern section L into two (a section surrounded by point marks P1-P5-P6-P3-P1 and a point mark P5-P2-P4) -A section surrounded by P6-P5), and the expansion / contraction rate is obtained for each of these two sections.
By doing in this way, as a result, it is equivalent to obtaining the vertical and horizontal expansion ratios for each small section while dividing the pattern section L into four small sections, and the expansion ratio without error and distortion is obtained. Thus, it becomes possible to create highly accurate correction data.

Next, the cloth cutting method according to the present invention will be described based on the operation status of the cloth cutting apparatus 1 described above. FIG. 4 is a flowchart illustrating the fabric cutting method according to the present invention.
Now, as shown in FIG. 2, it is assumed that the pattern section L which is the head in the unwinding direction of the material cloth W unwound from the cloth roll 5 is spread on the cutting table 2.
The material fabric W, as shown in FIG. 1, the point marked P1~P8 in an arrangement surrounding the pattern section L is displayed, adjacent patterns compartment L, and partition lines D appears between the L ₁ It shall be. Further, each pattern section L, the L _1, follow the like selects the order by clothing purchaser, with different parts pattern H and H ₁ are displayed, indicate different cutting programs and pattern section L and L ₁ cutting cord C and C ₁ to is assumed to be displayed.

Under such circumstances, the initial cycle setting for cutting out the part pattern H from the pattern section L which is the head in the unwinding direction is set to the current cycle setting unit 21 (steps 100 and 101).
The initial cycle is set by reading the cutting code C of the pattern section L using, for example, a hand-type code reader (not shown), and reading the cutting data indicated by the cutting code C from the database 23 and the current cycle. This may be done by generating a cutting program.

Next, the current cycle setting unit 21 drives the head moving mechanism 4 according to the generated cutting program for the current cycle, and horizontally moves the detection device 18 integrally with the cutting head 3. The L point marks P1 to P8 are detected (step 102).
Next, the current cycle setting unit 21 makes a major cut position based on a virtual line obtained by connecting the point marks P2 and P4 on both sides in the fabric width direction from the detected point marks P1 to P8 (that is, the division line D). Is set (step 104).

It should be noted that the current cycle setting unit 21 uses the detected point marks P1 to P8 so that the expansion / contraction rate generated in the pattern section L is set so as to precede, follow, or parallel to the setting of the position to be severely cut. Based on the expansion / contraction rate, correction data corresponding to the positional deviation of the part pattern H and deformation of the part pattern H is created, and the cutting program of the current cycle is corrected with this correction data. (See step 103).

Next, the current cycle setting unit 21 drives the head moving mechanism 4 to execute the major cutting with the rotary blade 12 while moving the cutting head 3 so as to follow the set major cutting position (partition line D). (Step 105).
When executing this major cutting, the next cycle setting unit 22 causes the code reader 17 that moves integrally with the cutting head 3 to read the cutting code C ₁ displayed in the pattern section L ₁ on the next side. (Also step 105). Then, the next cycle setting unit 22 reads the cutting data associated with the cutting code C ₁ from the database 23 and generates a next cycle program. The generated next cycle program is stored in a temporary memory (not shown). Needless to say, the next cycle program generated in this way is a cutting program for cutting out the part pattern H ₁ displayed in the pattern section L ₁ on the next side.

The reading of the cutting code C ₁ is included in the cycle operation of the current cycle (a series of cycle operations from loading to unloading for cutting out the part pattern H displayed in the pattern section L). There is no need to move the reader 17. Therefore, it is possible to simplify the cycle operation and shorten the cycle operation time (high efficiency).

As described above, while the next cycle setting unit 22 generates the next cycle program, the current cycle setting unit 21 starts from the pattern section L based on the cutting program for the current cycle. The part pattern H is cut out (step 106).
When the cycle operation of the current cycle is completed (whether or not the cycle operation is complete is not important) and the next cycle is set (when the cutting code C is read), that is, as described above. When the next cycle program is stored in the temporary memory, the process of carrying out the fabric parts and cuttings cut out by the current cycle from the cutting table 2 and carrying the material cloth W for the next cycle onto the cutting table 2 (Step 107-108), and the current cycle setting unit 21 erases (or stores) the cutting program that has been set for the cycle operation of the current cycle, and is stored in the temporary memory instead. Next cycle program (next cycle program generated by the next cycle setting unit 22 based on the cutting code C) The to replace for the cycle operation of the present cycle (step 101).

As a result, the one-cycle operation is completed, and at the same time, the next cycle is started. Of course, in the next cycle, on the basis of the following cycle program with the following cycle setting unit 22 is generated, then cutting out part pattern H ₁ that is displayed on the pattern section L ₁ for cutting is continued.
When the next cycle is not set in step 107 (when the next cycle program is not stored in the temporary memory described above), the fabric parts and cuttings cut out in the current cycle are carried out from the cutting table 2. (Step 109), the entire cycle operation is completed.

  As described above in detail, in the cloth cutting method and the cloth cutting apparatus 1 according to the present invention, the material cloth in which the shape, size, arrangement, and arrangement number of the part patterns H are different for each pattern section L. When cutting out cloth parts for W, setting of cutting data and the like (generation of a cutting program) for each pattern section L can be performed easily, quickly and reliably.

Furthermore, no operator intervention is required to set and input the next cycle cutting program (next cycle program). Also, when reading the cutting code that is the basis for generating the next cycle program, no special device operation is required (can be included in the cycle operation of the current cycle such as a large cut operation). ).
As a result, it is possible to respond flexibly and quickly to the needs of purchasers who wish to purchase clothing and the like, and it is also possible to suppress an increase in cost (rather, cost reduction is possible).

By the way, this invention is not limited to the said embodiment, It can change suitably according to embodiment.
For example, as described above, the shape, size, arrangement, number of arrangements of the part pattern H as well as the material of the material dough W, and the type, arrangement, number of arrangement of the cutting code C are not limited at all. .

In the embodiment, the case where the next cycle program for the pattern section L ₁ adjacent to the next side is generated based on the cutting code C ₁ read in the current cycle has been described. However, based on this cutting code C ₁ , It is also possible to generate a cutting program for cutting out the part pattern H from the pattern section L that is not adjacent to the cycle pattern section L (arranged further downstream).

  Moreover, the cloth cutting method and the cloth cutting apparatus 1 according to the present invention are specific to a material cloth W in which the shape, size, arrangement, and arrangement number of the part patterns H are different for each pattern section L. As long as the effects can be obtained, it is not limited to material cloths W having different shapes, sizes, arrangements, and arrangement numbers of the part patterns H for each pattern section L. That is, it is intended to be performed on a pattern in which the pattern sections L having the same shape, size, arrangement, and number of arrangement of the part pattern H are arranged in the long material cloth W (sequentially continuous cloth) ( Lot-productive implementation is possible.

As a method for displaying the part pattern H on the material fabric W, performing inkjet printing is not limited, and other printing methods may be employed. As for the cutting code C, it is also possible to “display the cutting code C” by sticking a label on which the cutting code C is printed to the material cloth W.
In the above-described embodiment, a case has been described in which a virtual line is connected between the point marks P2 and P4 when the cutting code C is read by the code reader 17, but the present invention is not limited to this, and the point marks P1 and P3 Alternatively, a virtual line may be connected between the point marks P5 and P6, or a straight line parallel to each virtual line (a straight line not connecting the point marks) may be used.

  In short, by moving the code reader 17 so as to follow (parallel) these straight lines (straight lines extending in the cloth width direction of the material cloth W), the expansion and contraction generated in each pattern section L (material cloth W) The movement of the code reader 17 according to distortion (warping, bending, wrinkles, etc.) can be realized, and as a result, the operational effect that the cutting code C can be reliably read by the code reader 17 can be obtained.

The correction using the point marks P1 to P8 is not limited as described above, and the correction may not be performed.
If possible, the code reader 17 and the detection device 18 may be shared as a device (detection of the point marks P1 to P8 and reading of the cutting code C by one device).

  In the present invention, “cut out a part pattern” means not only the case where a fabric part is cut out so as to match or follow the contour of the part pattern H, but also the part pattern H including part or all of the part. It also includes the case of cutting out a fabric part of another shape with a positional relationship with the pattern H.

DESCRIPTION OF SYMBOLS 1 Material cutting apparatus 2 Cutting table 3 Cutting head 4 Head moving mechanism 5 Material roll 6 Belt conveyor 6a Overlay part 7 Belt drive part 8 Suction head 9 Suction part moving mechanism 10 Flexible hose 11 Suction apparatus 12 Rotary blade 13 Feed part 14 pivot portion 15 supporting portion 17 code reader 18 detecting device 20 drive control unit 21 of the cutting cord D division line H part pattern H ₁ primary cycle of the current cycle setting unit 22 next cycle setting unit 23 database C cut cord C ₁ primary cycle parts pattern section of the pattern L pattern compartment L ₁ primary cycle P1~P8 point mark W material fabric

Claims (7)

A part pattern indicating a fabric part is displayed in a plurality of pattern sections that are assumed to be long in the longitudinal direction in a strip shape, and each pattern section is provided with a part pattern from the pattern section or a pattern section disposed downstream thereof. Prepare a material fabric with a cutting code indicating the next cycle program for cutting,
The cutting code is read by a code reader that reads the cutting code in a series of cycle operations from loading to unloading for cutting out the part pattern displayed in one pattern section,
Read the cutting data associated with the cutting code read by the code reader from the stored data to generate a next cycle program,
A material cutting method characterized by cutting a part pattern displayed in a pattern section to be cut next based on a generated next cycle program. When preparing the material fabric, a point mark indicating the opposite side position in the fabric width direction is displayed together with the part pattern and the cutting code,
When the cutting code of the material fabric is read by the code reader, prior to this, point marks on both sides in the width direction are detected from the material fabric, and a virtual line obtained by connecting the detected point marks to each other, or The material cutting method according to claim 1, wherein the cutting code is read while moving the code reader along a parallel straight line.   When preparing the material fabric, the point marks on both sides in the fabric width direction are arranged corresponding to each other between two adjacent pattern sections, and on the imaginary line obtained by connecting these two point marks to each other. 3. The dough cutting method according to claim 2, wherein the cutting cord is arranged on a parallel straight line.   4. The movement of the code reader is performed depending on a movement when a virtual line obtained by connecting point marks on both sides in the cloth width direction or a straight line parallel thereto is largely cut. Dough cutting method.   5. The dough cutting according to claim 1, wherein when the material dough is prepared, a part pattern selected independently is assigned to each pattern section and displayed. Method. A part pattern indicating a fabric part is displayed in a plurality of pattern sections that are assumed to be long in the longitudinal direction in a strip shape, and each pattern section is provided with a part pattern from the pattern section or a pattern section disposed downstream thereof. In the cloth cutting device that cuts out the part pattern of each pattern section for the material cloth on which the cutting code indicating the next cycle program for cutting is displayed,
A cutting table that supports at least one pattern section of the material fabric in an expanded state;
A cutting head which is provided above the cutting table and cuts the material fabric on the cutting table;
A head moving mechanism for moving the cutting head up and down, horizontally turning, and horizontally moving;
A code reader that is provided in the head moving mechanism and reads the cutting code from the material cloth while moving in the width direction of the material cloth together with the cutting head;
A database that stores multiple types of cutting data associated with multiple types of cutting codes;
A next cycle setting unit that reads cutting data from the database based on the cutting code read by the code reader and generates a next cycle program;
A current cycle setting unit that drives the head moving mechanism by replacing the next cycle program generated by the next cycle setting unit when the cycle operation of the current cycle is completed for the cycle operation of the current cycle;
A dough cutting device characterized by comprising: When the point mark indicating the opposite side position in the fabric width direction is displayed on the material fabric,
The head moving mechanism is provided with a detection device for detecting point marks on both sides in the width direction from the material cloth while moving in the width direction of the material cloth together with the cutting head,
The current cycle setting unit drives the head moving mechanism to move the code reader following a virtual line obtained by connecting both point marks detected by the detection device or a straight line parallel thereto. The dough cutting device according to claim 6, wherein

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