WO2022103246A1

WO2022103246A1 - Laser cutting system

Info

Publication number: WO2022103246A1
Application number: PCT/KR2021/095103
Authority: WO
Inventors: 배성호
Original assignee: (주)엔피에스; 배성호
Priority date: 2020-11-16
Filing date: 2021-11-16
Publication date: 2022-05-19
Also published as: KR20220066856A

Abstract

The present invention relates to a laser cutting system comprising: a fabric cutting unit including a first fabric cutter which laser-cuts one region of product fabric, which is spaced a predetermined length of a semi-finished product from a front end of fabric of the product, in a width direction of the product fabric so as to form a first cutting line for separating and forming a semi-finished product from the product fabric, and a second fabric cutter which laser-cuts another region of the product fabric located, compared to the first cutting line, on a front-end side of the product fabric by a predetermined length of the product in the width direction so as to form a second cutting line spaced a predetermined spare distance from each of opposite side ends of the product fabric; and a second cutting unit including a first semi-finished product cutter which laser-cuts the semi-finished product in a longitudinal direction of the product fabric so as to form a third cutting line which crosses the first cutting line and the second cutting line and is spaced a predetermined spare distance apart from each of one side end and a front end of the semi-finished product, and a second semi-finished product cutter which laser-cuts the semi-finished product in the longitudinal direction so as to form a fourth cutting line which crosses the first cutting line and the second cutting line and is spaced a predetermined width of the product apart from the third cutting line in the width direction while being spaced a predetermined spare distance apart from each of the other side end opposite to the one side end and a front end of the semi-finished product, the product being separated and formed from the semi-finished product through the third cutting line and the fourth cutting line.

Description

laser cutting system

The present invention relates to a laser cutting system.

1 is a view showing a schematic configuration of a conventional laser cutting system.

Referring to Figure 1, the conventional laser cutting system (2), the nip roll 130 for intermittently supplying the product fabric (F) by a predetermined length, and the laser beam oscillated from the laser oscillator (not shown) is condensed and a head driver (not shown) for transporting the laser head 140 so that the laser head 140 that emits the light is irradiated to the far end F of the product so that the laser beam emitted from the laser head 140 is irradiated.

In the case of this conventional laser cutting system 2, the head driver irradiates the laser beam emitted from the laser head 140 to the product far end F along the closed path C corresponding to the outline of the product P. Move the head driver as much as possible. Then, the original product F is laser cut by at least one cutting line C1, C2, C3, C4 formed along the closed path C, whereby the product P is divided and formed from the original product F do.

On the other hand, as shown in Figure 1, when manufacturing a product (P) having a polygonal shape, when laser cutting a specific part of the original product (F) corresponding to the edge of the product (P), the product original ( In order for the cutting lines (C1, C2, C3, C4) of F) to form an angle corresponding to the corner angle of the product (P), laser cutting and Various factors involved have to be adjusted. However, it is difficult to uniformly control the various factors due to process tolerances and other causes. Accordingly, in the conventional laser cutting system 2, the product fabric F is miscut or uncut because the cutting lines C1, C2, C3, C4 for forming the edge of the product P are incompletely connected. There was a problem that the case of cutting is frequent.

The present invention is to solve the problems of the prior art described above, and the purpose of the present invention is to provide a laser cutting system with an improved structure so that the original product is not erroneously cut or uncut when the product is formed by laser cutting the original product. there is.

Furthermore, an object of the present invention is to provide a laser cutting system having an improved structure so as to reduce the amount of scrap generated when forming a product from the original product.

Furthermore, an object of the present invention is to provide a laser cutting system having an improved structure so as to improve the squareness and dimensional accuracy of the product.

A laser cutting system according to a preferred embodiment of the present invention for solving the above-described problems, by laser cutting a region of the product fabric spaced apart by a predetermined semi-finished product length from the tip of the product fabric in the width direction of the product fabric, A first fabric cutter for forming a first cutting line for dividing a semi-finished product from the product fabric, and a predetermined product length compared to the first cutting line. a cutting unit for a fabric having a second cutting line for forming a second cutting line spaced apart from each of both ends of the fabric by a predetermined margin from each of both ends of the fabric by laser cutting in the width direction; and a third cutting line intersecting the first cutting line and the second cutting line by laser cutting the semi-finished product in the longitudinal direction of the product fabric, and spaced apart from each other by a predetermined clearance from the front end and one end of the semi-finished product. A first cutting machine for semi-finished products forming and a second semi-finished product cutter for forming a fourth cutting line spaced apart from the third cutting line by a predetermined clearance interval and spaced apart from the third cutting line in the width direction by a predetermined product width, the third cutting line and the second cutting line and a second cutting unit that divides and forms a product from the semi-finished product through a 4 cutting line.

Preferably, the length of the semi-finished product is determined to be longer than the length of the product by a predetermined clearance interval.

Preferably, the first cutting line is formed to be spaced apart by the length of the semi-finished product in a direction opposite to the longitudinal direction from the front end of the original product.

Preferably, the second cutting line is formed to be spaced apart from the front end of the product by a predetermined clearance in the opposite direction to the longitudinal direction.

Preferably, by photographing at least one cutting line of the first cutting line and the second cutting line, further comprising a camera for generating a photographed image of the at least one cutting line, the first far-end cutter and the The second far-end cutter adjusts the extending directions of the third cutting line and the fourth cutting line, respectively, based on the extending direction of the at least one cutting line detected from the photographed image.

Preferably, the first far-end cutter is configured to vertically extend the third cutting line to the first cutting line and the second cutting line based on an extension direction of the at least one cutting line detected from the photographed image. formed so as to intersect, and the second far-end cutter is configured to divide the fourth cutting line with the first cutting line and the second cutting line based on the extension direction of the at least one cutting line detected from the photographed image. formed to intersect vertically.

Preferably, the first far-end cutting machine includes a first laser oscillator that generates and oscillates a laser beam, a first laser head that condenses the laser beam and irradiates the semi-finished product to a predetermined position, and or has a first head driver for transporting the first laser head so as to adjust the irradiation path of the laser beam emitted from the first laser head through adjustment of the transport path of the first laser head.

Preferably, the second far-end cutting machine includes a first laser oscillator that generates and oscillates a laser beam, a second laser head that condenses the laser beam and irradiates the semi-finished product to a predetermined position, and the second laser head is positioned at a predetermined position. or has a second head driver for transporting the second laser head so as to adjust the irradiation path of the laser beam emitted from the second laser head by adjusting the transport path of the second laser head.

The present invention relates to a laser cutting system, and has the following effects.

First, in the present invention, a product can be formed by cutting a product fabric through cutting lines that are formed to cross each other vertically. Because the cutting lines constituting the corners of the product are incompletely connected, the product fabric is miscut or miscut. It can prevent cutting, and can improve the squareness and dimensional accuracy of the product.

Second, in the present invention, by forming scrap having a 'C' shape, it is possible to reduce the amount of scrap generated.

Figure 2 is a front view showing a schematic configuration of a laser cutting system according to a preferred embodiment of the present invention.

Fig. 3 is a plan view of the laser cutting system shown in Fig. 2;

4 is a plan view showing a coupling relationship between the variable roller and the coupling plate of the third conveyor shown in FIG. 3 .

5 is a state diagram of a laser cutting system for explaining a method of adjusting the arrangement position of the suction pad and the suction using a third conveyor.

6 is a view for explaining a method of dividing a semi-finished product from the original product.

7 is a plan view of a semi-finished product;

Fig. 8 is a partially enlarged view of Fig. 7;

Fig. 9 is a view for explaining a method of dividing a product from a semi-finished product;

Fig. 10 is a partially enlarged view of Fig. 9;

11 is a plan view of the product and scrap.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

2 is a front view showing a schematic configuration of a laser cutting system according to a preferred embodiment of the present invention, and FIG. 3 is a plan view of the laser cutting system shown in FIG.

2 and 3, the laser cutting system 1 according to a preferred embodiment of the present invention, the supply unit 10, the first transfer unit 20, and the cutting unit 30 for the fabric, It may include a second transfer unit 40, a cutting unit 50 for semi-finished products, and the like.

First, the supply unit 10 is a device for supplying the original product (F) for manufacturing the product (P).

As shown in Figure 2, the supply unit 10, a supply roll (not shown) for unwinding the product fabric (F) previously wound in a roll state and supplying it in the longitudinal direction of the raw product fabric (F), and a supply roll It may be provided with a nip roll 12, etc. for intermittently supplying the product fabric (F) supplied by the predetermined standard supply length by each in the longitudinal direction. The reference supply length is preferably set to be longer than the length L1 of the product P to be divided from the original product F by a predetermined ratio, but is not limited thereto.

Next, the first transfer unit 20 is a device for transferring the original product (F) supplied from the supply unit 10 to the installation position of the cutting unit 30 for the fabric.

As shown in FIG. 2 , the first transfer unit 20 includes a first conveyor 22 and a first conveyor 22 for transferring the product fabric F supplied from the nip roll 12 in the longitudinal direction. A second conveyor 24 for transferring the raw product F that has passed through in the longitudinal direction, and a third conveyor 26 for transferring the raw product F that has passed through the second conveyor 24 in the longitudinal direction etc. can be provided.

In addition, the first conveyor 22 may be provided with a suction pad 22a for vacuum adsorbing a portion of the product fabric F seated on the first conveyor 22 and adhering to the first conveyor 22 . there is. Correspondingly, the second conveyor 24 is provided with a suction pad 24a for vacuum adsorbing a portion of the product fabric F seated on the second conveyor 24 and adhering to the second conveyor 24 . can be

Between the first conveyor 22 and the second conveyor 24, one region of the original product (F) located in the space between the first conveyor 22 and the second conveyor 24 is a cutting unit for a fabric to be described later ( When laser cutting by the first fabric cutter 32 provided in 30), a suction pad 60 for vacuum adsorbing and fixing a region of the original product F, and a region of the original product F A suction 70 and the like for sucking and removing fume generated when laser cutting by the first fabric cutter 32 may be installed. In this case, as shown in FIG. 3 , a pair of suction pads 60 may be installed at a predetermined interval in the longitudinal direction, and the suction port 72 may include suction pads 60 . It may be installed so as to be located between them.

4 is a plan view showing the coupling relationship between the variable roller and the coupling plate of the third conveyor shown in FIG. 3 , and FIG. 5 is a laser cutting for explaining a method of adjusting the arrangement position of the suction pad and the suction using the third conveyor This is a state diagram of the system in use.

The third conveyor 26, while changing the shape according to the size of the product P to be manufactured by laser cutting the original product F, the suction pad 80 mounted on the third conveyor 26 And it is provided to adjust the arrangement position of the suction (90).

As shown in FIG. 2, the third conveyor 26 includes fixed rollers 26a that are fixedly installed at a predetermined position, and variable rollers 26b that are rotatably coupled to the coupling plate 26d, A conveyor belt 26c wound around the outer peripheral surfaces of the fixed rollers 26a and the variable rollers 26b to form an endless track, and the variable rollers 26b coupled to the coupling plate 26d and the coupling plate 26d. It may have a roller transporter 26e that reciprocates in the longitudinal direction or in a direction opposite to the longitudinal direction.

As shown in FIG. 4 , a total of two coupling plates 26d may be installed, one each at both ends of the variable rollers 26b so as not to interfere with the conveyor belt 26c. At this time, the variable rollers 26b are arranged at a predetermined interval so that a predetermined installation space is formed between the variable rollers 26b. The number of installation of the variable rollers 26b is not particularly limited, and the number of installation of the variable rollers 26b may vary according to the size of the required installation space.

In addition, as shown in FIG. 4 , in the installation space, both ends are coupled to the coupling plate 26d, respectively, and the other area of the original product F positioned to face the installation space is a cutting unit for a fabric to be described later. A suction pad 80 for adsorbing and fixing other areas of the product fabric F through a plurality of suction holes 82 when the laser is cut by the second fabric cutter 34 provided in the 30 and , both ends are coupled to the coupling plate 26d, respectively, and the suction 90 for sucking and removing foreign substances generated when the other area of the product fabric F is laser cut by the second fabric cutter 34. etc. may be installed. In this case, it is preferable that a pair of suction pads 80 are installed at predetermined intervals in the longitudinal direction, and the suction 90 is installed such that the suction port 92 is positioned between the pair of suction pads 80 . However, the present invention is not limited thereto.

As shown in FIG. 2 , the roller transporter 26e is preferably installed at the lower part of the third conveyor 26 so as to be coupled to the lower end of the coupling plate 26d, but is not limited thereto. The roller transporter 26e includes a coupling plate 26d and variable rollers 26b coupled to the coupling plate 26d, suction pads 80 and By reciprocating the suction 90 or the like in the longitudinal direction or in the opposite direction to the longitudinal direction, the coupling plate 26d and the variable rollers 26b coupled with the coupling plate 26d, the suction pads 80 and the suction (90) The arrangement position of the back can be adjusted.

On the other hand, if the disposition position of the suction pads 80 and the suction 90 cannot be adjusted, if only the disposition position of the second laser head 34a is selectively changed, the suction pads 80 are moved to the second laser head The other area of the original product F that is laser cut by 34a cannot be fixed, and the suction 90 cannot suck foreign substances generated when the other area of the original product F is laser cut. . However, according to the third conveyor 26, the arrangement positions of the suction pads 80 and the suction 90 can be adjusted according to the arrangement positions of the second laser heads 34a. Through this, the laser cutting system 1, the second laser head 34a according to the size of the product P to be manufactured by laser cutting the original product F (eg, the length L1 of the product P) ), by adjusting the positions of the suction pads 80 and the suction 90, the size of the product P can be adjusted.

6 is a view for explaining a method of dividing a semi-finished product from a product fabric, FIG. 7 is a plan view of the semi-finished product, and FIG. 8 is a partially enlarged view of FIG. 7 .

In addition, FIG. 9 is a view for explaining a method of dividing a product from a semi-finished product, FIG. 10 is a partial enlarged view of FIG. 9, and FIG. 11 is a plan view of the product and scrap.

Next, the cutting unit 30 for the fabric is a device for forming the semi-finished product (F1) by laser cutting the original product (F) supplied from the supply unit (10).

As shown in FIG. 6 , the cutting unit 30 for the fabric forms a first cutting line C1 and a second cutting line C2 at a predetermined interval on the product fabric F, and the first cutting It is provided so that the semi-finished product F1 can be dividedly formed from the original product F through the line C1 and the second cutting line C2.

To this end, as shown in FIG. 3 , the cutting unit 30 for fabric cuts a region of the fabric fabric F located in the space between the first conveyor 22 and the second conveyor 24 in the longitudinal direction and A first fabric cutter 32 for forming a first cutting line C1 in one area of the product fabric F by laser cutting in the width direction of the vertical product fabric F, and a third conveyor ( 26), a second fabric for forming a second cutting line (C2) in the other region of the original fabric (F) by laser cutting the other region of the original product (F) positioned to face the installation space in the width direction For cutting machine 34, etc. may be provided.

As shown in FIG. 3 , the first far-end cutter 32 includes a first laser oscillator (not shown) that generates and oscillates a laser beam LB, and a laser beam LB oscillated from the first laser oscillator. It may have a first laser head 32a for condensing and emitting the light, a first head driver 32b for transferring the first laser head 32a, and the like.

In addition, the first head driver 32b arranges the first laser head 32a at a predetermined position, or adjusts the transport path of the first laser head 32a to emit light emitted from the first laser head 32a. It is preferable that the irradiation path of the laser beam LB be adjusted. To this end, the first head driver 32b includes a first transfer member 32c for reciprocating the first laser head 32a in the width direction or in a direction opposite to the width direction, and the first transfer member 32c. and transfer the first laser head 32a coupled to the first transfer member 32c in the longitudinal direction or in the opposite direction to the longitudinal direction, or change the angle between the first transfer member 32c and the width direction. A second transfer member 32d for rotationally driving the first transfer member 32c may be included.

As shown in FIGS. 3 and 6 , in this first cutting machine 32 for far-end, the laser beam LB emitted from the first laser head 32a is the first conveyor 22 and the second conveyor 24 . ) by irradiating a laser beam LB to one area of the original product F in the width direction so as to completely cross one area of the original product F located in the space between them in the width direction, so that the first cutting line ( C1) may be formed to extend in the longitudinal direction in one region of the original fabric (F). More specifically, as shown in Figure 7, the first cutting machine 32 for the fabric, the first cutting line (C1) from the front end of the product fabric (F) in the direction opposite to the longitudinal direction of the predetermined semi-finished product length ( L2) so as to be spaced apart, the laser beam LB is irradiated to one area of the original product (F). The semi-finished product length L2 is not particularly limited, and it is preferable that the length L1 of the product P be longer than the length L1 of the product P by a predetermined clearance gap G1. When the first cutting line L1 is formed in this way, the product fabric F is divided by the first cutting line C1, so that the semi-finished product F1 having the semi-finished product length L2 is divided into the product fabric F. can be formed.

As shown in FIG. 3 , the second far-end cutter 34 includes a second laser oscillator (not shown) that generates and oscillates a laser beam LB, and a laser beam LB oscillated from the second laser oscillator. It may have a second laser head 34a that condenses and emits the light, and a second head driver 34b that transports the second laser head 34a.

In addition, the second head driver 34b arranges the second laser head 34a at a predetermined position, or adjusts the transport path of the second laser head 34a. It is preferable that the irradiation path of the laser beam LB be adjusted. To this end, the second head driver 34b includes a first transfer member 34c that reciprocates the second laser head 34a in the width direction or in a direction opposite to the width direction, and the first transfer member 34c. and the second laser head 34a coupled to the first transfer member 34c is transferred in the longitudinal direction or in the opposite direction to the longitudinal direction, or the angle between the first transfer member 34c and the width direction is changed. A second transfer member 34d for rotationally driving the first transfer member 34c may be included.

3 and 6, in this second cutting machine 34 for the far end, the laser beam LB emitted from the second laser head 34a cuts the width of the other area of the far end F of the product. The laser beam LB is irradiated in the width direction to the other area of the original product F so as to partially cross in the direction, and the second cutting line C2 is applied to the other area of the original product F. It can be formed to extend in the width direction. More specifically, as shown in Fig. 8, the second cutting line (C2) of the second cutting line (C2) in the direction opposite to the longitudinal direction from the front end of the product fabric (F) is a predetermined clearance gap ( At the same time as being spaced apart by G1), the laser beam LB is spaced apart from each of both ends of the original product F by a predetermined clearance gap G2 in the width direction or the opposite direction to the width direction. ) is investigated in other areas. In addition, the second fabric cutter 34 forms the second cutting line C2 to be spaced apart from the first cutting line C1 by a distance corresponding to the length L1 of the product P in the longitudinal direction. . Then, as shown in FIG. 7 , the first cutting line C1 may constitute a cut surface of the rear end of the semi-finished product F1, and the second cutting line C2 is for forming a product P to be described later. It can function as a dividing line.

On the other hand, the semi-finished product F1 dividedly formed from the original product F is seated on the second conveyor 24 and the third conveyor 26 . Accordingly, as shown in FIG. 2 , the second conveyor 24 and the third conveyor 26 transport the semi-finished product F1 in the longitudinal direction, and the conveyor 42 of the second transport unit 40 to be described later. can be forwarded to In addition, the supply unit 10 may re-supply the raw product F by the reference supply length when the semi-finished product F1 is transferred to the second transfer unit 40 .

Next, the second transfer unit 40 transfers the semi-finished product F1 formed by the cutting unit 30 for fabric to the installation position of the semi-finished product cutting unit 50 or formed by the semi-finished product cutting unit 50 It is a device for transferring the product (P) to the installation position of the transfer cart (110).

As shown in Figure 2, the second transfer unit 40, the conveyor 42 for transferring the semi-finished product F1 in the longitudinal direction, and gripping and transporting the semi-finished product F1 seated on the conveyor 42, , The first transfer machine 44 seated on the cutting plate 100, and the product P and the scrap S divided from the semi-finished product F1 on the cutting plate 100 are gripped and transported, and the transfer bogie 110 It may be provided with a second transfer device 46, etc. to be delivered to.

The conveyor 42 is installed to be spaced apart from the third conveyor 26 by a predetermined distance in the longitudinal direction to receive the semi-finished product F1 that has passed through the third conveyor 26 .

The first transfer device 44 reciprocates in the longitudinal direction or in the opposite direction to the longitudinal direction along the section between the conveyor 42 and the cutting plate 100, and the thickness direction of the original product F or the It is provided to reciprocate in a direction opposite to the thickness direction. In addition, the first transfer device 44 may have at least one suction pad 44a capable of vacuum-sucking and holding the semi-finished product F1 . The first transfer machine 44 may grip and transport the semi-finished product F1 seated at a predetermined gripping position of the conveyor 42 to be seated on the upper surface of the cutting plate 100 .

The second transfer machine 46 reciprocates in the longitudinal direction or in the opposite direction to the longitudinal direction along the section between the conveyor 42 and the transfer cart 110, and the thickness direction of the original product F or the It is provided to reciprocate in a direction opposite to the thickness direction. In addition, the second transfer device 46 may have at least one suction pad 46a capable of vacuum-sucking and holding the product P. The second transfer machine 46 may grip and transport the product P and the scrap S divided from the semi-finished product F1 on the cutting plate 100 to be seated on the upper surface of the transfer cart 110 .

On the other hand, the scrap (S) seated on the transfer bogie 110 together with the product (P) is separated from the product (P) by an air gun installed on the transfer bogie 110 or a transfer machine installed outside of the transfer bogie 110 . may be recovered separately. In addition, although the scrap (S) has been described as being held together with the product (P) by the second transfer machine (46) and seated on the transfer cart (110), the present invention is not limited thereto, and the scrap (S) is the cutting plate (100). ), it may be recovered separately from the product (P) by a transfer member or other transfer members.

Next, the cutting unit for semi-finished product 50 is a device for forming the product (P) by laser cutting the semi-finished product (F1) delivered from the cutting unit (30) for fabric.

As shown in FIG. 3 , the semi-finished product cutting unit 50 laser cuts the semi-finished product F1 seated on the cutting plate 100 in the longitudinal direction, and provides a third cutting line C3 to the semi-finished product F1. The first semi-finished product cutter 52 for forming a, and the semi-finished product F1 seated on the cutting plate 100 are laser cut in the longitudinal direction, and a fourth cutting line C4 is cut on the semi-finished product F1 by a third cutting. A second semi-finished product cutter 54 and the like formed to be spaced apart from the line C3 by a distance corresponding to the width of the product P may be provided.

As shown in FIG. 3 , the first semi-finished product cutter 52 includes a first laser oscillator (not shown) that generates and oscillates a laser beam LB, and a laser beam LB oscillated from the first laser oscillator. It may have a first laser head 52a that condenses and emits light, and a first head driver 52b that transports the first laser head 52a.

In addition, the first head driver 52b arranges the first laser head 52a at a predetermined position, or adjusts the transport path of the first laser head 52a. It is preferable that the irradiation path of the laser beam LB be adjusted. To this end, as shown in FIG. 3 , the first head driver 52b includes a first transfer member 52c for reciprocating the first laser head 52a in the longitudinal direction or in the opposite direction to the longitudinal direction, and , the first transfer member 52c and the first laser head 52a coupled to the first transfer member 52c are reciprocally transferred in the width direction or in the opposite direction to the width direction, or the first transfer member 52c and A second transfer member 52d and the like may be provided to rotate and drive the first transfer member 52c so that the angle between the longitudinal directions is changed.

As shown in FIG. 9 , the first semi-finished product cutter 52 irradiates the laser beam LB emitted from the first laser head 52a in the longitudinal direction to the semi-finished product F1 in the longitudinal direction. The line C3 may be formed to extend in the longitudinal direction on the semi-finished product F1 so as to intersect the first cutting line C1 and the second cutting line C2 . In particular, as shown in FIG. 10, the first semi-finished product cutter 52 separates the third cutting line C3 from one end of the semi-finished product F1 by a predetermined clearance gap G3 in the width direction. At the same time, it is preferable to form it so as to be spaced apart from the front end of the semi-finished product F1 by a predetermined clearance gap G4 in the opposite direction to the longitudinal direction.

As shown in FIG. 3 , the second semi-finished product cutter 54 includes a second laser oscillator (not shown) that generates and oscillates a laser beam LB, and a laser beam LB oscillated from the second laser oscillator. It may have a second laser head 54a that condenses and emits the light, and a second head driver 54b that transports the second laser head 54a.

In addition, the first head driver 52b arranges the first laser head 52a at a predetermined position, or adjusts the transport path of the first laser head 52a. It is preferable that the irradiation path of the laser beam LB be adjusted. To this end, as shown in FIG. 3 , the second head driver 54b includes a first transfer member 54c for reciprocating the second laser head 54a in the longitudinal direction or in a direction opposite to the longitudinal direction, and , the first transfer member 54c and the second laser head 54a coupled to the first transfer member 54c are reciprocally transferred in the width direction or the opposite direction to the width direction, or the first transfer member 54c and It may include a second transfer member 54d that rotates and drives the first transfer member 54c so that the angle between the longitudinal directions is changed.

9, the second semi-finished product cutter 54 irradiates the laser beam LB emitted from the second laser head 54a to the semi-finished product F1 in the longitudinal direction, and the fourth The cutting line C4 intersects the first cutting line C1 and the second cutting line C2 by a distance corresponding to the width W1 of the product P in the width direction from the third cutting line C3. It may be formed to extend in the longitudinal direction to the semi-finished product F1 so as to be spaced apart. In particular, as shown in FIG. 10 , the second semi-finished product cutter 54 cuts the fourth cutting line C4 from the other end of the semi-finished product F1 opposite to the one end in a direction opposite to the width direction in advance. It is preferable to be spaced apart by a predetermined clearance gap G3 and at the same time be spaced apart from the tip of the semi-finished product F1 by a predetermined clearance gap G4 in the opposite direction to the longitudinal direction.

On the other hand, the first semi-finished product cutter 52 and the second semi-finished product cutter 54 , respectively, connect the third cutting line C3 and the fourth cutting line C4 to the first cutting line C1 and the second cutting line. It is preferable to form so as to intersect vertically with (C2). However, due to the meandering of the product fabric (F) occurring in the supply process of the product fabric (F), the meandering of the semi-finished product (F1) occurring in the transport process of the semi-finished product (F1), and other causes, the first cutting line (C1) and the second cutting line C2 is formed in the semi-finished product F1 in a state that is not parallel to the width direction, or the first cutting line C1 and the second cutting line C2 are not parallel to the width direction There is a case where the semi-finished product F1 is seated on the cutting plate 100 in an unsatisfactory state. In this case, when the third cutting line C3 and the fourth cutting line C4 are formed to extend in the longitudinal direction, the third cutting line C3 and the fourth cutting line C4 are the first cutting line C1 ) and the second cutting line C2 and there is a risk of not being perpendicular.

To solve this, as shown in FIG. 3 , the laser cutting system 1 is one of the first cutting line C1 and the second cutting line C2 of the semi-finished product F1 seated on the cutting plate 100 . The camera may further include at least one camera 120 that captures at least one cutting line to generate a captured image of the at least one cutting line. In this case, the controller (not shown) of the laser cutting system 1 detects the extension direction of the at least one cutting line based on the captured image transmitted from the camera 120 and then the detected at least one By adjusting the extending directions of the third and fourth cutting lines C3 and C4 based on the extending directions of the cutting lines, the third and fourth cutting lines C3 and C4 are connected to the first cutting lines. (C1) and the second cutting line (C2) may be formed to cross vertically.

For example, if the controller determines that the semi-finished product F1 is seated on the cutting plate 100 so that the first cutting line C1 and/or the second cutting line C2 are parallel to the width direction, A first head driver 52b and a second head driver 54b so that the first laser head 52a and the second laser head 54a irradiate the laser beam LB to the semi-finished product F1 along the longitudinal direction. can control the operation of

For example, in the controller, the semi-finished product F1 is seated on the cutting plate 100 so that the first cutting line C1 and/or the second cutting line C2 is displaced by a predetermined angle of deviation from the width direction. When it is determined that , the first laser head 52a and the second laser head 54a irradiate the laser beam LB to the semi-finished product F1 from the longitudinal direction along the compensation direction shifted by the angle of deviation from the longitudinal direction, the first head Driving of the driver 52b and the second head driver 54b may be controlled.

9, when the third cutting line C3 and the fourth cutting line C4 are formed on the semi-finished product F1, a product P having a predetermined length L1 and a width W1, and The scrap S corresponding to the residue remaining after forming the product P is dividedly formed from the semi-finished product F1, respectively. In addition, as shown in Figure 11, the scrap (S) may have a 'C' shape surrounding both ends and the front end of the product (P).

The conventional laser cutting system divides the product from the original product by irradiating a laser beam along the closed path corresponding to the outline of the product. ' It will have a shape. In contrast, the laser cutting system 1 can form a scrap S having a 'C' shape surrounding only the front end and both ends of the product P, and compared to the conventional laser cutting system, the scrap (S) ) can be reduced.

In addition, according to the laser cutting system 1, the product (P) can be divided and formed from the original product (F) through the cutting lines (C1, C2, C3, C4) that cross each other vertically, the product ( Because the cutting lines C1, C2, C3, C4 constituting the edge of P) are unconnected, it is possible to prevent the product fabric F from being erroneously cut or uncut, and the perpendicularity and Dimensional precision can be improved.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims

A first fabric for forming a first cutting line for dividing a semi-finished product from the product fabric by laser cutting a region of the product fabric spaced apart by a predetermined semi-finished product length from the front end of the product fabric in the width direction of the product fabric A cutting machine for laser cutting, in the width direction, the other area of the product fabric located on the tip side of the product fabric by a predetermined product length compared to the first cutting line, in the width direction, a predetermined clearance distance from each of both ends of the product fabric a cutting unit for a fabric having a cutter for a second fabric that forms a second cutting line spaced apart by the same; and

A third cutting line intersecting the first cutting line and the second cutting line by laser cutting the semi-finished product in the longitudinal direction of the product fabric, spaced apart from each of the tip and one end of the semi-finished product by a predetermined clearance A cutting machine for forming a first semi-finished product, and laser cutting the semi-finished product in the longitudinal direction, intersecting the first cutting line and the second cutting line, from the front end of the semi-finished product and the other end opposite to the one end, respectively and a second semi-finished product cutter for forming a fourth cutting line spaced apart by a predetermined clearance interval and spaced apart from the third cutting line in the width direction by a predetermined product width, the third cutting line and the fourth and a second cutting unit that divides the product from the semi-finished product through a cutting line.
According to claim 1,

The semi-finished product length is determined to be longer than the product length by a predetermined clearance interval, the laser cutting system.
3. The method of claim 2,

The first cutting line is formed so as to be spaced apart by the length of the semi-finished product in the opposite direction to the longitudinal direction from the front end of the product fabric, laser cutting system.
4. The method of claim 3,

The second cutting line is formed so as to be spaced apart from the front end of the product fabric by a predetermined clearance in the opposite direction to the longitudinal direction, the laser cutting system.
According to claim 1,

A camera for generating a photographed image of the at least one cutting line by photographing at least one of the first cutting line and the second cutting line;

The first far-end cutter and the second far-end cutter respectively extend the third cutting line and the fourth cutting line based on the extension direction of the at least one cutting line detected from the photographed image. Regulating, laser cutting system.
According to claim 1,

The first far-end cutter is configured to vertically intersect the third cutting line with the first cutting line and the second cutting line based on the extension direction of the at least one cutting line detected from the photographed image do,

The second far-end cutter is configured to vertically intersect the fourth cutting line with the first and second cutting lines based on the extension direction of the at least one cutting line detected from the photographed image. which, laser cutting system.
7. The method of claim 6,

The first far-end cutter includes a first laser oscillator that generates and oscillates a laser beam, a first laser head that condenses the laser beam and irradiates the semi-finished product, and the first laser head is disposed at a predetermined position or , Having a first head driver for transporting the first laser head so as to adjust the irradiation path of the laser beam emitted from the first laser head through the adjustment of the transport path of the first laser head, laser cutting system.
7. The method of claim 6,

The second far-end cutter includes a first laser oscillator that generates and oscillates a laser beam, a second laser head that condenses the laser beam and irradiates the semi-finished product, and the second laser head is arranged at a predetermined position or , Having a second head driver for transporting the second laser head so as to adjust the irradiation path of the laser beam emitted from the second laser head through the adjustment of the transport path of the second laser head, laser cutting system.