KR102006380B1 - System for manufacturing cutting product - Google Patents

System for manufacturing cutting product Download PDF

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Publication number
KR102006380B1
KR102006380B1 KR1020150123950A KR20150123950A KR102006380B1 KR 102006380 B1 KR102006380 B1 KR 102006380B1 KR 1020150123950 A KR1020150123950 A KR 1020150123950A KR 20150123950 A KR20150123950 A KR 20150123950A KR 102006380 B1 KR102006380 B1 KR 102006380B1
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South Korea
Prior art keywords
fabric
cutting
cutting knife
cut
defect inspection
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KR1020150123950A
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Korean (ko)
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KR20170027400A (en
Inventor
김은용
박슬기
이호경
이규황
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주식회사 엘지화학
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Priority to KR1020150123950A priority Critical patent/KR102006380B1/en
Publication of KR20170027400A publication Critical patent/KR20170027400A/en
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    • 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
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • 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
    • B26F1/44—Cutters therefor; Dies therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/04—Manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Primary Health Care (AREA)
  • Health & Medical Sciences (AREA)
  • Economics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Marketing (AREA)
  • Manufacturing & Machinery (AREA)
  • Strategic Management (AREA)
  • Tourism & Hospitality (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

According to an aspect of the present invention, there is provided a production system for a cut product, comprising: a defect inspection unit for inspecting defects of a fabric; and a cutting knife configured to cut at least a part of the fabric at a time of one cut, Based on the defect information of the cutter and the fabric including the cutter knife, it is controlled so that defect inspection is performed for each area along the longitudinal direction of the good product calculating unit and the defect calculating unit for calculating the yield rate at the time of cutting with the cutting knife, And a controller for controlling the position of the cutting knife to be aligned along the width direction of the fabric so that the product yield rate at the time of cutting is equal to or greater than a predetermined value based on the information.

Description

System for manufacturing cutting product "

The present invention relates to a production system of cut products.

In general, a product on a film (or sheet) is produced in the form of a fabric having a size larger than the size of the product to be actually used. For example, optical members such as a polarizing plate and a retardation plate used for a display device and the like are the same. For example, considering the various factors such as the efficiency of the manufacturing process and the fluctuation of the demand for the product, the polarizer supplier (manufacturer) has to fabricate a polarizer having a length and width larger in size than the product .

Further, the fabric is, in most cases, produced in a strip shape through a continuous process, and the fabric is wound on a roll and stored. Thereafter, the fabric wound on the roll is taken out and cut into a unit product of a predetermined size.

In general, in cutting a fabric, a method of cutting a plurality of unit products simultaneously in a single cutting process is widely used. For example, a cutter frame equipped with a plurality of cutters is used. At this time, the yield of the unit product that is cut depends on how the cutting is carried out. Lower cutting efficiency increases scrap, or waste, that is discarded after cutting, which ultimately leads to increased product manufacturing costs.

Also, depending on the type of fabric, there may be undesirable defects in the product. In this case, defects are considered for quality (quality improvement) at the time of cutting the fabric. Generally, defects are formed in the manufacturing process of the fabric or the winding process.

For example, a polarizing plate used in a display device such as a TV is manufactured by (1) a step of obtaining a polarizer, (2) a step of laminating a polarizer protective layer, and (3) a step of laminating a protective film or a release film do. In the step of obtaining a polarizer, a polyvinyl alcohol (PVA) film is mainly dyed and stretched to obtain a polarizer. In the step of laminating the polarizer protective layer, a triacetylcellulose (TAC) film is attached to both surfaces of the polarizer through an adhesive to laminate the polarizer protective layer. At this time, the polarizing plate can be wound on the roll in the course of each step, and at least the product that has undergone the step (3) is wound and held on a roll. When the film is wound on a roll in this manner, it is advantageous not only in terms of transportability to each step, but also ease of storage and handling in the cutting process.

Defects of the fabric mainly occur in the stretching or winding step. For example, in the stretching process, both end portions of the fabric are fixed to the stretching device, and defects may occur in the fixing portions. In the case of the winding process, defects may occur at the end portion fixed to the roll. Further, in the case of the winding process, when there is a scratch on the roll, a periodic defect may occur in a region in contact with the roll due to the characteristics of the rotating roll. If defects are identified in the cut unit product, the loss of the product becomes large.

Accordingly, when cutting a fabric having defects, defect inspection is performed prior to cutting, and cuts are made to avoid defects so that defects are not included in the cut unit products. Also, the yield of the unit product cut as described above is taken into consideration.

In general, the cutting of the fabric includes an inspection process of inspecting the position (distribution) of the defect, a process of calculating the quality of the unit product at the time of virtually cutting based on the defect information to be inspected, In the calculation process, the cutting process is carried out through a cutting process in which the product is cut so that the product yield rate (maximum yield) is higher than a predetermined value based on the calculated value. Various cutting methods for improving the product yield are being developed.

An object of the present invention is to provide a production system for a cut product which can increase the productivity.

According to one aspect of the present invention, there is provided a defect inspection apparatus comprising: a defect inspection unit for inspecting defects of a fabric; and a cutting unit including a cutting knife configured to cut at least a part of the fabric at a time of one cutting into a plurality of pieces, And defect inspection information for each area in the longitudinal direction of the fabric is controlled so as to perform defect inspection on each defect information for each area, And a control unit for controlling the position of the cutting knife to be aligned along the width direction of the fabric so that the product yield rate at the time of cutting is equal to or greater than a predetermined value.

According to another aspect of the present invention, there is provided a defect inspection apparatus comprising: a defect inspection unit for inspecting defects of a fabric; a cutting unit including a cutting knife configured to cut at least a part of the fabric at a time of one cutting into a plurality of individual products; Based on the defect information, defect quantity distribution maps are generated for each region along the length direction of the fabric in accordance with the defective product calculating unit and the defect information to be inspected to calculate the defect rate at the time of cutting with the cutting knife, And a controller for aligning the position of the cutting knife so as to cut the area so that the yield rate is equal to or greater than a predetermined value.

According to still another aspect of the present invention, there is provided a conveying apparatus comprising a conveying unit configured to convey a raw material wound in a roll form along a longitudinal direction, a defect inspection unit for inspecting a defect in the conveyed fabric, A cutting part including a cutting knife provided so as to cut at least a part of the area of the fabric at a plurality of individual parts; a good part calculating part for calculating the yield rate at the time of cutting with a cutting knife based on the defect information of the fabric; A defect distribution map is generated for each region along the length direction of the fabric, and the cut knife is positioned in the width direction of the fabric And a control unit for aligning the plurality of cut products.

As described above, according to the cutting product production system related to one embodiment of the present invention, defect inspection is performed for each cutting pitch, and the position of the cutting knife is aligned for each cutting pitch according to defect information, .

1 is a plan view showing a fabric according to the present invention.
2 is a plan view showing a cutting knife related to the present invention.
3 is a conceptual diagram for explaining a method of cutting a fabric according to a cutting pitch.
4 is a plan view for explaining defect information.
5 is a flowchart showing a production method of a cut product related to an embodiment of the present invention.
6 is a configuration diagram showing a production system of a cut product related to an embodiment of the present invention.
7 is a graph for explaining the effect of the present invention.

Hereinafter, a production system of a cut product according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In addition, the same or corresponding reference numerals are given to the same or corresponding reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown in the drawings are exaggerated or reduced .

1 is a plan view showing a fabric 10 associated with the present invention.

In this document, the 'fabric' to be cut is the base material on the film (or sheet), which is included in the base material if it has a relatively larger size than before the cutting. In addition, in the present invention, the kind and laminated structure of the fabric 10 are not particularly limited. The fabric 10 may be selected from an optical member or a protective member on a film (or sheet), for example, applied to an electric or electronic product. The fabric 10 may be selected from optical members that are applied to a more specific example, a display device such as a TV or a monitor. Further, the fabric 10 may include a single layer body and / or a laminate body.

In one example, the fabric 10 may be a polarizer. At this time, the polarizing plate may have a laminated structure including a polarizer and a polarizer protective layer formed on the polarizer.

The fabric 10 may be, for example, in the form of a strip, which can be drawn out in a state wound on a roll. The fabric 10 has a predetermined width X and length Y and the width X and length Y of the fabric 10 are not limited. The fabric 10 may have a width X of, for example, 40 mm to 2,500 mm and a length Y of 1,000 cm to 3,000 m. Further, the distal end 10 may have a band shape having a length Y relatively longer than the width X.

Meanwhile, in this document, a 'cut' can be used to mean one or more of 'slitting cutting' and 'unit cutting'. In the present invention, the 'slitting cutting' means cutting the fabric 10 into a strip-shaped semi-finished product by cutting the fabric 10 lengthwise in the Y direction, and the "unit cutting" ) Is cut in the direction of the length (Y) and the direction of the width (X), respectively, and cut into a unit product. At this time, in the present invention, the band-shaped semi-finished product obtained through the slitting cut is referred to as a 'strip', and the cut product obtained through the unit cut is referred to as 'single product' or 'product'. Also, the term 'fabric' which is cut into a single product or a product in this document can be used as a concept including the strip (semi-finished product).

The single piece is a single piece of finished product having a length and width smaller than the raw fabric 10, which may have the shape of, for example, a quadrangle.

In this document, 'area yield' is calculated by dividing the total area of the cut products obtained after cutting by the total area of the cutting front fabric (10). Specifically, the area yield can be calculated as a ratio of the area of a plurality of individual products (cut products) to be cut with respect to the area of the raw material 10. The area yield can be expressed as a percentage (%) as usual. In addition, the total area of the cut products can be calculated as the number of the cut products produced by one area of the cut product. In addition, the maximum area yield means that the portion discarded after cutting the fabric 10 is minimized.

Also, in this document, the "yield rate" can be calculated as a ratio of the number of good products to the number of produced cut products, for example, as the yield of cuts calculated by reflecting the distribution of defects. On the other hand, in order to cut the fabric, a plurality of virtual cut lines formed so as to have the same area yield on the fabric can be positioned. At this time, when the defect information of the fabric is reflected on each virtual cut line, the quantization rate may be determined differently depending on the position of the virtual cut line. The good product may mean a product not including defects after the cutting, and in some cases, a good product may mean a product having a defect of a predetermined number or less. A good product can also be used as the opposite concept of a defective product.

Also, in this document, 'size' can be used to mean one or more of width, length, area, and diagonal length of fabric 10 or cut product (piece and / or strip).

2 is a plan view showing a cutting knife 20 associated with the present invention.

The cutting knife 20 has a structure in which a plurality of cutting portions 21 are uniformly arranged so that a plurality of individual pieces (for example, about 80 pieces) can be cut in one cutting operation. For example, the cutting knife 20 may be arranged to have a plurality of columns. Referring to Fig. 2, a cutting knife 20 having two rows 22-1, 22-2 is shown, for example.

The size of each cutting portion 21 can be determined through the width (x) and the length (y). In addition, the size of each cutting portion 21 may be substantially the same as the size of the single piece after cutting. For example, the cutting portion 21 may be formed as an opening portion. At this time, as in the pressing process, the cutting knife 20 is pressed toward the fabric 10 side, so that a plurality of individual products can be cut. As described above, the single unit may be a polarizing plate. The cutting knife 20 can be used for unit cutting.

At this time, the cutting knife 20 can be divided into various types according to the size of the cutting part 21 and the absorption axis (or transmission axis). That is, in order to cut a polarizer of a specific size and a specific absorption axis, a specific cutting knife 20 should be used. In addition, the number of rows 22-1 and 22-2 and the interval between rows can also be used as a criterion for distinguishing the cutting knife 20.

Fig. 3 is a conceptual diagram for explaining a method of cutting the fabric 10 according to the cutting pitches p1, p2 and p3, Fig. 4 is a plan view for explaining defect (d) information, 1 is a flowchart showing a production method of a cut product related to an embodiment.

A production method of a cut product related to the present invention includes an acquisition step (S101) of acquiring defect information of the fabric (10) a plurality of times along the longitudinal direction (Y) of the fabric, (S102) aligning the position of the cutting knife (20) along the width direction (X) of the fabric so that the cutting knife (20)

On the other hand, in the polarizing plate product, the defects (d) are displayed on the fabric 10 through the inspection apparatus while being subjected to processes such as stretching and coating. Such defect information can be displayed on an x-y coordinate, such as a rectangular coordinate.

The obtaining step may be performed according to the pitches p1, p2, and p3 of the fabric to be cut, when the fabric is cut once along the length direction of the fabric 10 through the cutting knife 20 have. The pitches p1, p2 and p3 may be the same as the length of the cutting knife 20 or slightly larger than the length of the cutting knife 20.

Conventionally, in the production method of the cut product, defect inspection is performed once over the entire area (lengthwise direction) of the fabric 10, and the yield of the product at the time of cutting is calculated based on the defect (d) information. The alignment position of the conventional cutting knife is fixed until the cutting of the corresponding fabric is completed. However, the present invention is also applicable to a cutting knife (20) for inspecting defects (d) in a corresponding region according to the cutting pitches (p1, p2, p3) Are determined according to the cutting pitches p1, p2 and p3 of the fabric, respectively, it is possible to further improve the productivity. As described above, the method of performing the cutting while changing the position of the cutting knife 20 along the width direction X of the fabric 10 may be referred to as eccentric cutting. The width X of the fabric 10 is larger than the width of the cutting knife 20. Further, on the fabric 10, the cutting knife 20 can be moved left and right along the direction of the width X of the fabric by such a width difference.

The obtaining step may be performed through one or more cameras, and the defect information may be separately generated for each pitch (p1, p2, p3) of the far end. At this time, the aligning step may be performed for each pitch of the fabric.

On the other hand, in the position aligning step, the position of the cutting knife 20 can be determined to be a position maximizing the yield rate at the time of cutting at the position. In the positioning step, the cutting knife 20 may be moved along the width direction X of the fabric 10 on the basis of the defect information (d) of the fabric 10, have. Referring to FIG. 4, it is possible to determine whether a defect (d) is located in a cutting portion (or a single article) on an x-y coordinate system to determine a good product or a defective product.

In addition, the production method may further include a cutting step of cutting the fabric 10 into a plurality of individual pieces with the cutting knife 20 at the aligned positions.

A method of producing a cut product related to the present invention includes a generation step of generating a defect distribution map for each area 10a, 10b, 10c along the longitudinal direction of the fabric 10, A positioning step of aligning the position of the cutting knife so as to cut the area so that the defective rate is equal to or larger than a predetermined value based on the crystal distribution map; and a step of cutting the corresponding area of the fabric with a cutting knife And a cutting step to be performed.

The defect distribution map can be generated on the basis of the orthogonal coordinate system and can be generated based on, for example, the x-y coordinates of the defect (d) for the specific reference point (0, 0).

Here, when the fabric 10 is cut once by the cutting knife 20, the producing step, the aligning step, and the cutting step may be performed once each.

In the production step, each of the regions 10a, 10b and 10c of the fabric 10 has a pitch of the fabric to be cut when cutting the fabric one time along the longitudinal direction of the fabric through the cutting knife 20 p1, p2, p3) and is an area corresponding to the above-mentioned cutting pitch.

At this time, the defect distribution map can be separately generated for each pitch of the fabric 10. [ In addition, the step of aligning the cutting knife 20 can be performed for each pitch (p1, p2, p3) of the fabric based on the defect distribution map of the pitch.

In the position aligning step, the cutting knife 20 can be aligned at a position where the productivity is maximized. Specifically, in the aligning step, it is possible to calculate each flat rate while moving the cutting knife 20 along the width direction of the fabric 10 based on the defect distribution map. That is, after the cutting knife 20 is virtually positioned on the defect distribution map, the number of good products obtained after the cutting can be calculated, and by calculating the number of good products at the alignment positions of the respective cutting knives 20, It is possible to determine the alignment position of the cutting knife 20 that maximizes the yield rate.

Referring to FIG. 3, a method of producing a cut product related to the present invention includes a feeding step of winding a raw material 10 wound in a roll form along a length direction, A generation step of generating a defect distribution map for each of the regions 10a, 10b, and 10c along the longitudinal direction of the cutting knife, And a positioning step of aligning the plurality of light emitting elements.

Here, in the process of transferring the fabric 10, the generating step and the aligning step may be successively performed.

Hereinafter, a production system of a cut product provided to perform the method of producing a cut product as described above will be described in detail.

6 is a configuration diagram showing a production system 100 of a cut product related to an embodiment of the present invention.

The production system 100 of a cut product related to the present invention includes a defect inspection unit 140, a cutting unit 150, a good product calculating unit 160, and a control unit 130. The production system 100 of the cut product may include a product information input unit 110 and a raw information input unit 120. In addition, the production system 100 of the cut product may include a transfer part for transferring the fabric 10.

The product information input unit 110 stores product information. At this time, the information of the product may include the size of each product. For example, when the cloth 10 is cut into any of n products, the size of each of the n products to be cut may be input to the product information input unit 110.

On the other hand, raw material information about the raw material 10 is input to the raw material information input unit 120. The size of the fabric 10 may be input as the fabric information in the fabric information input unit 120 and at least one selected from the width X and length Y of the fabric 10 may be input. have.

The defect inspection unit 140 is provided to inspect defects of the fabric. The defect information on which the inspection is completed is stored in the control unit 130. The defect information may be stored in the control unit 130 in the form of a defect distribution map.

The cutting unit 150 includes a cutting knife 20 configured to cut at least some regions 10a, 10b, and 10c of the raw fabric into a plurality of individual pieces at the time of one cutting.

The good product calculating section 160 is provided so as to calculate the yield of the cutting with the cutting knife 20 on the basis of the defect (d) information of the fabric 10.

The control unit 130 controls the defect inspection to be carried out for each area 10a, 10b and 10c along the length direction of the fabric 10 and performs defect inspection based on the defect information for each of the areas 10a, 10b and 10c And controls the position of the cutting knife 20 to be aligned along the width direction of the raw fabric 10 so that the yield rate at the time of cutting is equal to or greater than a predetermined value.

As described above, the regions 10a, 10b, and 10c of the raw materials at which the defect inspection is performed are formed on the pitch of the fabric cut at the time of cutting once along the length direction of the fabric through the cutting knife 20 .

The defect inspection unit 140 may include one or more cameras and defect inspection of the fabric may be performed separately for the pitches p1, p2 and p3 of the fabric 10.

The alignment position of the cutting knife 20 can be determined for each pitch of the fabric. Further, the cutting position of the cutting knife can be determined to be a position maximizing the yield of the cutting knife. Specifically, the alignment position of the cutting knife 20 can be determined by calculating the flatness rate while moving the cutting knife along the width direction of the fabric on the basis of the defect information of the fabric.

The production system 100 for a cut product related to the present invention includes a defect inspection part 140 for inspecting defect (d) of a fabric and at least partial areas 10a, 10b, 10c of a fabric at the time of one cutting A cutting part 160 including a cutting knife provided for cutting and a defective piece calculating part 160 for calculating the defective ratio at the time of cutting with the cutting knife 20 based on defect information of the fabric 10, A controller for generating a defect distribution map for each region along the length direction of the fabric and aligning the position of the cutting knife in order to cut the region so that the yield rate is equal to or larger than a predetermined value 130).

The control unit 130 may control the defect inspection and the positional alignment of the cutting knife 20 to be performed once each time the original 10 is cut by the cutting knife 20. The lengthwise regions 10a, 10b and 10c of the fabric in which the defect inspection is performed are formed in such a manner that the pitches of the fabrics to be cut in one cutting operation along the lengthwise direction of the fabric 10 through the cutting knives 20 pitch.

In addition, the defect inspection unit 140 may include one or more cameras, and the defect inspection may be performed separately for each pitch of the fabric 10. The alignment position of the cutting knife 20 can be determined for each of the cutting pitches p1, p2 and p3 of the fabric 10. That is, defect inspection of the fabric 10 and positional alignment of the cutting knife are continuously performed in real time.

The alignment position of the cutting knife 20 can be determined for each pitch of the fabric. Further, the cutting position of the cutting knife can be determined to be a position maximizing the yield of the cutting knife. Specifically, the alignment position of the cutting knife 20 can be determined by calculating the flatness rate while moving the cutting knife along the width direction of the fabric on the basis of the defect information of the fabric.

A production system 100 of a cut product related to the present invention comprises a transfer unit (not shown) provided to roll a fabric 10 in a rolled state along a length direction and a fabric 10 And a cutting unit 150 including a cutting knife 20 configured to cut at least a portion of the fabric at a time of one cutting into a plurality of single pieces. The production system 100 may further include a good product calculating unit 160 for calculating a good product rate at the time of cutting with a cutting knife based on the defect information of the fabric, 10a, 10b, and 10c, respectively. In order to cut the area so that the productivity rate is equal to or greater than a predetermined value based on the defect distribution map for each area, the position of the cutting knife is aligned along the width direction of the fabric And a control unit 130 for controlling the display unit.

That is, the transfer of the fabric 10, defect inspection and positional alignment of the cutting knife can be continuously performed in real time.

7 is a graph for explaining the effect of the present invention

Referring to FIG. 7, L 1 represents a positive rate measured for each case after fixing a position of a cutting knife after inspecting a defect over the entire area of the raw fabric as in the prior art. It shows the positive rate measured by each case while aligning the position of the cutting knife according to the area of the fabric according to the cutting pitch.

Thus, it has been confirmed that the method according to the present invention has a higher yield rate than the conventional method.

The foregoing description of the preferred embodiments of the present invention has been presented for purposes of illustration and various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention, And additions should be considered as falling within the scope of the following claims.

10: Fabric
20: Foundation knife
100: Production system of foundation products
110: Product information input unit
120: Fabric information input unit
130:
140:
150:
160:

Claims (20)

A defect inspection unit for inspecting defects of the fabric;
A cutting section including a cutting knife configured to cut at least a part of the fabric at a time of one cutting into a plurality of single parts;
A good product calculating unit for calculating the yield of the cutting with the cutting knife based on defect information of the fabric; And
The defect inspection is performed for each area along the length direction of the fabric so that the position of the cutting knife is aligned along the width direction of the fabric so that the yield rate at the time of cutting is equal to or more than a predetermined value based on the defect information for each area And a control unit for controlling,
The areas of the fabric where the defect inspection is performed are classified according to the pitch of the fabric cut at the time of one cut along the length direction of the fabric through the cutting knife,
The defect inspection part includes at least one camera, defect inspection is performed separately for each pitch of the fabric,
The alignment position of the cutting knife is determined for each pitch of the fabric,
Wherein the pitch is equal to or greater than the length of the cutting knife. delete delete delete The method according to claim 1,
The cutting position of the cutting knife is determined as a position maximizing the defective rate at the time of cutting. 6. The method according to claim 1 or 5,
The cutting position of the cutting knife is determined by calculating the flatness rate while moving the cutting knife along the width direction of the fabric on the basis of the defect information of the fabric. The method according to claim 1,
The cutting knife has a structure in which a plurality of cutting portions are regularly arranged so that a plurality of individual pieces can be simultaneously cut at the time of one cutting. A defect inspection unit for inspecting defects of the fabric;
A cutting section including a cutting knife configured to cut at least a part of the fabric at a time of one cutting into a plurality of single parts;
A good product calculating unit for calculating the yield of the cutting with the cutting knife based on defect information of the fabric; And
A defects distribution map is generated for each region along the length direction of the fabric according to the defect information to be inspected and the position of the cutting knife is cut to cut the region so that the defective rate is equal to or larger than a predetermined value based on the region- And a control section for aligning,
The control unit controls the defect inspection and the positional alignment of the cutting knife to be performed once each when the fabric is cut once with the cutting knife,
The lengthwise areas of the fabric where the defect inspection is performed are divided according to the pitch of the fabric cut at the time of one cutting along the length direction of the fabric through the cutting knife
The defect inspection unit includes one or more cameras,
The defect inspection is performed separately for each pitch of the fabric,
The alignment position of the cutting knife is determined for each pitch of the fabric,
Wherein the pitch is equal to or greater than the length of the cutting knife. delete delete delete delete 9. The method of claim 8,
The cutting position of the cutting knife is determined as a position maximizing the defective rate at the time of cutting. 14. The method of claim 13,
The cutting position of the cutting knife is determined by calculating the flatness rate while moving the cutting knife along the width direction of the fabric on the basis of the defect information of the fabric. 9. The method of claim 8,
The cutting knife has a structure in which a plurality of cutting portions are regularly arranged so that a plurality of individual pieces can be simultaneously cut at the time of one cutting. A conveyance unit configured to roll a fabric in a roll state along a lengthwise direction;
A defect inspection unit for inspecting defects of the fabric being transported;
A cutting section including a cutting knife configured to cut at least a part of the fabric at a time of one cutting into a plurality of single parts;
A good product calculating unit for calculating the yield of the cutting with the cutting knife based on defect information of the fabric; And
A defects distribution map is generated for each region along the length direction of the fabric according to the defect information to be inspected and the position of the cutting knife is cut to cut the region so that the defective rate is equal to or larger than a predetermined value based on the region- And a control section for aligning along the width direction of the fabric,
The control unit controls the defect inspection and the positional alignment of the cutting knife to be performed once each when the fabric is cut once with the cutting knife
The lengthwise regions of the fabric where the defect inspection is performed are divided according to the pitch of the fabric cut at the time of one cut along the length direction of the fabric through the cutting knife,
The defect inspection unit includes one or more cameras,
The defect inspection is performed separately for each pitch of the fabric
The alignment position of the cutting knife is determined for each pitch of the fabric,
Wherein the pitch is equal to or greater than the length of the cutting knife. delete delete delete delete
KR1020150123950A 2015-09-02 2015-09-02 System for manufacturing cutting product KR102006380B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101179071B1 (en) * 2009-03-10 2012-09-03 주식회사 엘지화학 Process for Preparation of Quadrangle Unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101179071B1 (en) * 2009-03-10 2012-09-03 주식회사 엘지화학 Process for Preparation of Quadrangle Unit

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