JP2008082910A - Method and device for indicating defective part in sheet material processing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and device for indicating a defective part in sheet material processing capable of almost certainly applying a visual confirmation index, which is visually confirmed as it remains marked in a laminate of flat sheets to a sheet material even if a defective part index is applied to the sheet material inside a superposed sheet material, corresponding to the flat sheet, in which defects are caused, in the case where the sheet material is supplied to a cutter device to be processed into the flat sheet. <P>SOLUTION: A magnetic material detecting sensor 8 for detecting the defective part index, which is formed by bonding magnetic ink to a paper sheet P in a paper making machine is installed in the cutter device 6 and an ink marker 11 for applying the visual confirmation index is arranged on the downstream side of a cutter knife 9. In the case where the defective part index is detected, the visual confirmation index is applied by the ink marker 11 when the position where the defective part index is applied passes. The flat paper of a part where the ink marker 11 is applied to the side surface of the laminate of the flat sheets processed into flat papers to be laminated is removed by a worker. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, for example, when performing sheet material processing for cutting paper into a flat shape, an operator can easily recognize a flat sheet having defects such as perforations, scratches, and a mixture of impurities. As described above, the present invention relates to a defective portion indicating method and a defective portion indicating device in sheet material processing that can reliably indicate a defective portion.

  In a paper machine used in the papermaking process, a paper layer is formed while dewatering the supplied papermaking raw material at the wire part, and water is squeezed from the paper layer formed at the press part and squeezed to form wet paper Is dried with a dryer part, and after adjusting the paper thickness with the calendar part and imparting smoothness, the reel part is wound around a reel to produce a winding. The manufactured winding has a large width, and in recent years, in particular, there is a tendency to become larger in order to improve productivity. On the other hand, consumers such as newspaper companies, printing companies, packaging material companies, etc. do not own machinery equipment that handles wide and large diameter windings, and paper mills handle wide windings when shipping. Hateful. For this reason, in a paper mill, a take-up taken up by a machine reel of a paper machine is processed into a take-up of an appropriate width and diameter according to the machine capability of a printing machine etc. owned by a customer, It is cut into flat paper of the size and shipped.

  By the way, the paper manufactured by the paper machine may have a machine defect in which impurities such as perforations, dirt, and wrinkles are mixed for various reasons. Since this defect is inconvenient as a product, it is necessary to remove the defective part. In the case of flat paper, the flat paper having defects is removed. In order to remove the defective part, it is necessary to know where the defect exists on the web. Therefore, as a pre-process to be wound on the reel, the presence or absence of a defect is detected, a mark is attached to the ear of the paper corresponding to the position where the defect exists as an index, and when rewinding with a winder or rewinder, The part with the index is removed.

  For example, there is a defect inspection device disclosed in Patent Document 1 as a defect portion indicating method and defect portion indicating device in this type of sheet material processing. This defect inspection apparatus includes a mark unit for attaching a metallic mark material to a specific part of a non-metallic sheet-like material, and a mark part to which the metallic mark material is attached based on the electromagnetic properties of the metallic mark material. A mark search means for searching for, a defect detection means for detecting a defective portion of the sheet-like material as a specific part, and a removal means for removing the mark part based on the search result of the search device It is.

JP2005-3000258

  In the defect inspection apparatus disclosed in Patent Document 1 described above, it is effective in removing the winding wound on the reel by the above-described winder or rewinder as a small-width or small-diameter winding and removing it as a defective product for each small winding. However, in the case of producing a flat sheet by passing it through a cutter device and cutting it into predetermined vertical and horizontal dimensions, it may not function sufficiently when removing a flat sheet having a defective portion.

  When manufacturing a flat sheet, a plurality of windings are wound around an unreel stand and supported, and a plurality of sheets are stacked while being unwound from each winding and used for the cutter device. In the case where the winding of the generated paper is present inside the superimposed paper, the position of the defect cannot be confirmed visually. When used for a winder or rewinder, since it is a single sheet, if the mark material is colored, the position of the defect can be reliably grasped visually or by an optical search device. On the other hand, in the case of a flat sheet, it is possible to remove the defective one from the laminated body, which is a cutter cutting pile in which a large number of flat sheets are laminated after cutting. The person visually recognizes and removes the corresponding flat sheet from the laminate. For this reason, if the exact position of the flat sheet having a defective portion can be visually recognized when the side surface of the laminate is visually observed, the defective portion can be easily found, and the efficiency of the removing operation is improved.

  In addition, when manufacturing a flat sheet, it is necessary to cut the ear part in the cutter device, so the index attached to the ear part is cut and formed into a laminate. There is a risk that the index will not exist.

  In view of this, the present invention can surely grasp the position of the defect generated in the paper, particularly when manufacturing the flat sheet, so that the operator can surely remove it from the laminate of the flat sheet having the defect. An object of the present invention is to provide a defective portion indicating method and a defective portion indicating device in processing a sheet material.

  As a technical means for achieving the above-mentioned object, the defective part indicating method in the sheet material processing according to the present invention is applied to a sheet material before winding the sheet material on a reel when a defect exists in the manufactured sheet material. Detecting the generated defect, attaching a defect index to the ear portion of the sheet material corresponding to the position where the defect exists, and in the subsequent process for the wound sheet material, the defect is targeted to the defect index. In the case of removing the generated portion, a plurality of sheet materials are cut in a state of being overlapped to form a flat sheet, and the defect is present in a state where the flat sheet is laminated. In the defective part indicating method in the sheet material processing for removing the portion that is being removed, the defective part index attached at the time of winding is detected when the winding is rewound, and the sheet material that is in the rewinding traveling is detected. The detected defective finger A mark having a defect with a visual indicator attached to the portion corresponding to the above, and with the visual indicator appearing on the side surface of the laminate of the flat sheets cut and laminated in a flat form. It is characterized in that the sheet is removed.

  When the sheet material is paper, for example, when the sheet material is paper, for example, the defect detection means and the defect part index giving means are sequentially arranged in the paper running direction on the way from the calendar part to the reel part of the paper machine, If a defect part index is detected by the defect detection means, the index is attached to the ear part corresponding to the position where the defect exists according to the timing of the relationship with the traveling speed. The winding taken up on the reel is provided to a cutter device for processing into a flat paper. At this time, a plurality of windings are simultaneously provided, and the paper sheets rewound from the respective windings are superimposed and cut simultaneously. When a defect exists in the paper sheet positioned inside the superimposed paper sheet, the defect portion index cannot be visually recognized in the superimposed state. Moreover, since the cutter device cuts into a flat paper of a predetermined size, the winding ear is cut, the portion with the index is removed, and the defect position becomes unknown, which is defective. There is a risk that it will be impossible to remove a flat sheet. For this reason, when the winding provided to the cutter device is rewound, the defect index is detected by a detector or the like, and when the defective index is detected, the traveling speed of the paper sheet to be rewound Accordingly, when the position corresponding to the defect position arrives at a predetermined position, the visual indicator is attached. At this time, even if the winding ear is cut first, it is visually recognized by the time obtained from the traveling speed of the paper sheet and the distance from the position where the defect index is detected to the predetermined position. Add an indicator. Thereby, even when the defect portion index is cut and removed, a visual recognition index is newly added. Then, a predetermined number of flat sheets formed by cutting with a cutter device can be confirmed on the side surface in a state where a predetermined number of sheets are laminated to form a laminated body of one cutter cut mountain. For this reason, the operator removes the flat paper in which a defect exists with this visual indicator as a target.

  According to a second aspect of the present invention, there is provided a defect portion indication method in sheet material processing, wherein the defect portion index is made to adhere a material that can be detected without using an optical detection means to the sheet material.

  When the sheet is used for the cutter device, a plurality of paper sheets are overlapped and traveled, so that the defect portion index may be separately detected in the travel region of the paper sheet unwound from each winding. However, if the defect index is not detected optically, it can be detected even if the defect index exists inside the superimposed paper sheet. In this case, the defect index can be detected even in a state where a plurality of paper sheets are superposed on the cutter device.

  And the defect part instruction | indication method in the sheet | seat material processing which concerns on invention of Claim 3 makes the said defect part parameter | index attach the adhesion medium containing a magnetic body to a sheet | seat material.

  That is, the magnetic substance contained in the adhesion medium is detected as a defect index that can be detected without using the optical detection means. Examples of the adhesion medium include paints such as ink, kneaded materials such as wax and crayon, binders such as starch and latex, etc., as long as they can adhere to a paper sheet and can contain a magnetic substance. Good. For example, ink containing a magnetic material, so-called magnetic ink can be used. Magnetic ink may be applied directly to the traveling sheet material, or a seal printed with printing magnetic ink may be applied to the traveling sheet material. Of course, the ink is not limited to the magnetic ink as long as it can be detected without using the optical detection means.

  In addition, the defect portion indicating device in the sheet material processing according to the present invention detects a defect generated in the sheet material before winding the sheet material on a reel when the manufactured sheet material has a defect, and detects the defect. In the case where a defect part index is attached to the ear part of the sheet material corresponding to the position where the defect exists, and in the subsequent process for the wound sheet material, the defective part is removed with the defect part index as a target. , Sheet material processing for forming a flat sheet by cutting in a state where a plurality of sheet materials are overlapped, and removing a portion where the defect exists in a state where the flat sheet is laminated In the defect portion indicating device, the defect portion index detection means for detecting the defect portion index attached at the time of winding when the rewinding is rewound, and the defect with respect to the sheet material during the rewinding traveling Detected by the section index detection means The visual indicator is provided with a visual indicator that visually attaches a visual indicator to a portion corresponding to the defective portion, and the visual indicator is detected when the defective portion detected by the defective portion detector is passed by rewinding travel. A visual indicator is provided to the side surface of the sheet material by the applying means, and the visual indicator is made to appear on the side surface of the laminated flat sheet sheet cut into a flat shape.

  If the defective part index attached before being wound on the reel is detected by the defective part index detecting means during rewinding, the visual index is attached to the sheet material by the visual index providing means. Since this visual indicator appears on the side of the laminated body processed into a flat sheet, the operator specifies the position of the flat sheet with the defect in the laminated body with this visual indicator as a target. Can be removed.

  According to a fifth aspect of the present invention, there is provided a defect indicating apparatus for processing a sheet material, wherein the defect index is a material that can be detected without using an optical detection means, and the material detected by the defect index detection means. It is characterized by adhering to a sheet material.

  In order to process the sheet material into a flat sheet, the sheet material is overlapped while being rewound from a plurality of windings provided to the cutter device, and cut into a predetermined size. At this time, defect part index detection means may be arranged corresponding to each of the windings so that the defect part index is detected for each sheet material before being superimposed, If the part index can be detected, it is preferable because it can be detected by a single defect part index detecting means. When the defect index is detected by the optical detection means, it may not be detected in a state where the sheet material is superimposed. For this reason, the detection of the defective portion index is detected by means other than the optical detection means.

  According to a sixth aspect of the present invention, there is provided a defect portion indicating apparatus for processing a sheet material, wherein the defect portion index is an adhesion medium including a magnetic material adhered by a defect portion index providing means, and the defect portion index detection means is A magnetic field caused by a magnetic material is detected, and a visual indicator is attached by the visual indicator applying means based on the detected position of the magnetic field.

  For example, a magnetic ink is used as a device that can detect a defect index without using optical detection means. The defect part index detection means detects the presence or absence of a defect by detecting the magnetic field generated by the defect part index.

  According to the defective portion indicating method or the defective portion indicating device in the sheet material processing according to the present invention, a visual index is attached to the flat sheet processed by cutting the sheet material rewound from the winding. Therefore, the visual indicator can be reliably displayed on the side surface of the laminate in which the flat sheets are laminated. Moreover, it is possible to reliably attach a visual indicator corresponding to the detected defect index, and the flat sheet having a defect is a flat sheet before and after the portion to which the visual indicator is attached, Since it exists in the range within the number of sheets superimposed by the cutter device, the operator can remove the flat sheet having a defect without waste.

  In addition, according to the defect portion indicating method in the sheet material processing according to the invention of claim 2 or the defect portion indicating apparatus according to the invention of claim 5, the detection of the defect portion index is not performed by the optical detection means. Even when a defective part index is attached to the sheet material positioned inside with the material superimposed, the sheet material can be unwound from a plurality of windings and cut in a superimposed state. Thus, a defective portion indicating method or defective portion indicating device in sheet material processing suitable for a cutter device that processes into a flat sheet is provided.

  Moreover, according to the defect part indicating method in the sheet material processing according to the invention of claim 3, or the defect part indicating apparatus according to the invention of claim 6, the mechanism and apparatus for attaching the defect part index are simplified, The defect index can be reliably detected at the time of rewinding the winding.

  Hereinafter, based on the illustrated preferred embodiment, a defective portion indicating method and a defective portion indicating device in sheet material processing according to the present invention will be specifically described. In this embodiment, paper is exemplified as a sheet material, and a case where it is processed into flat paper will be described.

  FIG. 2 is a schematic side view showing a calendar part 1 and a reel part 2 arranged at the end of the paper machine. The paper sheet P, which has been dried by passing through a dryer part (not shown), is crushed by the calendar part 1 to adjust the paper thickness and impart smoothness. Then, the reel part 2 passes through the drum 2b and passes the reel 2a. To complete the winding 3. Between the calendar part 1 and the reel part 2, a defect detection device 4 and a defect part index assigning device 5 which is a defect index part giving means are arranged, and the paper sheet P travels from the calendar part 1 to the reel part 2. In the meantime, the defect detection device 4 detects the presence or absence of defects such as perforations, scratches, and impurities mixed in the paper sheet P, and the defect is detected when the position where the defect exists passes based on the detection result. The part index assigning device 5 attaches a defect part index D (see FIGS. 3 and 4) to the ear part of the paper sheet corresponding to the position of the defect. As this index, ink containing a magnetic material, so-called magnetic ink, is used, and this magnetic ink is applied, sprayed from a nozzle to adhere to a paper sheet, or printed using magnetic ink. A magnetic material is attached to the paper sheet by applying a sticker.

  The winding 3 is supplied to a cutter device 6 schematically shown in FIG. 1 by a conveying device (not shown), and a plurality of windings 3 are held on an unreel stand (not shown) with their axial directions parallel to each other. . The paper sheet P is rewound from the plurality of windings 3 and overlapped when passing through the guide roll 7. On the downstream side of the guide roll 7, a magnetic body detection sensor 8 is disposed as a defect portion index detection means for detecting the defect portion index D. A trim cutter (not shown) that cuts the ears of the paper sheet P on the downstream side of the magnetic body detection sensor 8 or a circular tooth that rotates the paper sheet P around the direction orthogonal to the traveling direction is predetermined. A slitter knife 9 that divides the paper sheet P into narrow paper sheets P, and a cutter knife along a direction orthogonal to the traveling direction of the paper sheet P, and cuts the paper sheet P at a predetermined position in the traveling direction and has a predetermined dimension. A cutter roll 10 or the like that is a flat paper is arranged. Between the slitter knife 9 and the cutter roll 10, an ink marker 11 is disposed as a visual indicator providing means for attaching a visual indicator to the traveling paper sheet P.

  On the downstream side of the cutter roll 10, a conveyor 12 is arranged to feed a flat paper cut to a predetermined size to a layboy (not shown), and a predetermined number of flat papers are laminated. A laminate L is obtained.

  FIG. 3 and FIG. 4 are schematic views showing how the magnetic body detection sensor 8 detects the four paper sheets P which are superposed on each other, and the defect portion index D is displayed on the central paper sheet P. FIG. The case where it is attached is shown. The magnetic substance detection sensor 8 is arranged at a position facing the portion to which the defect index D is attached, detects a magnetic field generated when the defect index D passes, and detects the presence of the defect index D. To detect. FIG. 3 shows a structure in which the detection is performed by arranging the magnetic substance detection sensor 8 on one side of the paper sheet P, and FIG. 4 shows a structure in which the detection is performed by arranging the magnetic substance detection sensor 8 on both sides. ing.

  5 to 7 are diagrams for explaining the ink marker 11. In this embodiment, the case where the slitter knife 9 is used to divide the ink marker into three parts is shown, and the ink marker 11 is given a suffix and is indicated by 11a, 11b, 11c, and 11d, respectively. Further, the row of the three divided paper sheets P is made to correspond to the cutter の of the cutter device 6 to be A 桝 paper sheet Pa, B 桝 paper sheet Pb, and C 桝 paper sheet Pc, respectively. Of the ink markers 11, the ink marker 11b is disposed at a position facing the boundary between the paper sheet Pa and the paper sheet Pb, and the ink marker 11c is disposed at a position facing the boundary between the paper sheet Pb and the paper sheet Pc. The ink markers 11a and 11d are arranged at positions facing the outer end portions of the paper sheets Pa and Pc located on the side portions, respectively. As shown in FIG. 6, the ink marker 11 has a saber 16 inserted in a gap formed by a pair of ink pads 15 a and 15 b, and the tip of the saber 16 advances and retreats to the border of the paper sheet P. It is. 6 shows a state in the retracted position, and FIG. 7 shows a state in the entered position. Ink is supplied to the ink pads 15a and 15b from an ink supply device (not shown), and the ink is applied to the saber 16 inserted through the gap.

  The operation of the defective portion indicating method and the defective portion indicating device in the sheet material processing according to the embodiment of the present invention configured as described above will be described below.

  When a defect such as a hole is generated in the paper sheet P in the process of being manufactured by the paper machine, the defect detection device 4 detects the defect. Since the traveling speed of the paper sheet P in the paper machine and the distance between the defect detection device 4 and the defect portion index providing device 5 are known, the defect portion is detected after the defect detection device 4 detects the defect. The defective portion index is applied to the paper sheet P by the defective portion index applying device 5 as time elapses until the index applying device 5 is reached. The defect portion index may be a colored ink or the like that is colored by spraying or coating from the defect portion index applying device 5 or a colored sticker attached thereto. Regardless of this, it is preferable that it is possible to detect that the defect index is provided. Further, the defect portion index is attached to a portion corresponding to a portion where a defect has occurred in the ear portion of the paper sheet. Any device that does not rely on optical detection means may be used, but in particular, if a magnetic material is attached to the paper sheet P, it can be reliably attached by a simple method. That is, the magnetic material can be contained in the coating material as the adhesion medium like the magnetic ink described above, or the magnetic material is contained in a kneaded material such as a crayon as the adhesion medium other than the coating material, and the same as the crayon. It can also be applied to a paper sheet P, or a binder such as starch or latex can be applied as an attachment medium containing a magnetic material, or can be applied in a sealed state. Then, the paper sheet P that has passed through the defective portion index assigning device 5 is wound on the reel 2a to complete the winding 3.

  The completed winding 3 is conveyed by a conveying means (not shown) and supplied to the cutter device 6. As shown in FIG. 1, a plurality of windings 3 are held on an unreel stand with their reels 2a arranged in parallel. The paper sheets P that have been rewound from the respective take-ups 3 are guided and superimposed on the guide roll 7. When the winding 3 passes through the position where the magnetic body detection sensor 8 faces in the superposed state, if the defect portion index is attached to any winding 3, the magnetic body detection sensor 8. Thus, it is detected that a defect index exists. Since the distance between the magnetic material detection sensor 8 and the ink marker 11 and the traveling speed of the paper sheet P traveling on the cutter device 6 are known, the defect portion index detected by the magnetic material detection sensor 8 is the ink. Waiting for a time to pass the position where the marker 11 faces, the ink marker 11 applies ink and colors the paper sheet P, thereby giving a visual indicator. In addition, after passing the magnetic body detection sensor 8, the ear | edge part of the paper sheet P has already been cut | disconnected by the said trim cutter which is not shown in figure, and the said defect part parameter | index is removed from the paper sheet P.

  To attach the visual indicator, as shown in FIG. 7, the saber 16 moves forward with respect to the paper sheet P and enters the boundary between the paper sheet Pb and the paper sheet Pc. That is, as shown in FIG. 6, since the ink is applied to the side surface of the saber 16 from the ink pads 15a and 15b, the ink enters the boundary portion so that the ink flows into the paper sheet Pb and the paper sheet Pc. Will stick to the side of the. By the way, the position in the width direction of the paper sheet P is required for the defect position detected by the defect detection device 4. If the information on the defect position in the width direction is provided to the control device of the ink marker 11 in correspondence with the winding 3 provided to the cutter device 6, any paper sheet Pa, Pb, Pc It is possible to determine whether or not a defect position exists. For this reason, for example, if there is a defect in the wrinkle of the paper sheet Pc, ink is supplied to the ink pad 15b corresponding to the wrinkle of the paper sheet Pc in FIG. Ink is applied only to the surface of the paper sheet Pc located on the heel side. Therefore, the saber 16 can attach a visual indicator only to the side surface of the paper sheet Pc. Alternatively, information related to the defect position detected by the defect detection device 4 is output to a form or the like, and the operator of the cutter device designates a defect of the paper sheet P on which the defect exists based on the output form, A visual indicator may be attached to the paper sheet P corresponding to the corresponding wrinkle.

  The paper sheet P that has passed the position where the ink marker 11 faces is supplied to the cutter roll 10, and is cut into an appropriate length in the running direction to form a flat paper having a predetermined size. The formed flat paper is conveyed by the conveyor 12 and laminated by a layboy (not shown) to form a laminated body L. At this time, the portion to which the ink is adhered by the ink marker 11 is in a state where a colored marking portion M appears on the side surface of the laminate L as shown in FIG. The operator can specify the plain paper having a defect with the marking portion M as a target, and can easily remove it.

  In the embodiment described above, the configuration using the ink marker 11 is described. However, a configuration using the ribbon marker 13 instead of the ink marker 11 may be used. That is, as shown in FIG. 1, when a ribbon marker 13 is arranged facing the conveyor 12 and a defect index is detected by the magnetic substance detection sensor 8, the ribbon 13a is detected after a predetermined time has elapsed since the detection. Is inserted into the paper sheet P being conveyed to the conveyor 12. The inserted ribbon 13a appears in the laminate L as a marking portion N that indicates the position where the flat paper having the defective portion exists, so that the operator can identify the defective portion with the marking portion N as a target. The flat paper having the same can be easily removed from the laminate L.

  Furthermore, in the embodiment described above, since the magnetic body detection sensor 8 as the defect portion index detection means is provided on the downstream side from the position where the paper sheet P is superimposed, the defect portion index is provided inside the superimposed paper sheet P. If it is attached, the defect index cannot be detected if it is optically detected. For this reason, it is preferable to use magnetic ink or the like that does not depend on optical detection. On the other hand, when the defective portion index detection means is arranged upstream of the position where the paper sheet P is superimposed, the presence or absence of the defective portion index can be detected for each of the paper sheets P. It can be optically detected rather than a detection sensor. Even in such a case, since the distance from the defective portion index detection means to the ink marker 9 for each paper sheet P is known, a visual index can be attached to the paper sheet P in the superimposed state. That is, when the defect portion index detecting means is provided for each paper sheet P so that the defect portion index is detected for each of the paper sheets P, the defect portion index may be ink that colors the paper sheet P. Absent.

  According to the defective part indicating method and the defective part indicating device in the sheet material processing according to the present invention, the position of the defect generated in the sheet material can be easily identified, so that the removal work of the flat paper causing the defect is ensured. This can be done in a short time and contributes to the simplification of the removal work.

It is a side view explaining the schematic structure of the cutter apparatus suitable for providing the defect part instruction | indication method and defect part instruction | indication apparatus in the sheet | seat material processing concerning this invention. It is a side view which shows the schematic structure of the termination | terminus part of the paper machine suitable for providing the defect part instruction | indication method and defect part instruction | indication apparatus in the sheet | seat material processing concerning this invention. It is a figure explaining the detection aspect by the magnetic body detection sensor with which the defect part instruction | indication method and defect part instruction | indication apparatus which concern on this invention are equipped, and shows the case where the magnetic body detection sensor is arrange | positioned on the one side of a paper sheet ing. It is a figure explaining the detection aspect by the magnetic body detection sensor with which the defective part instruction | indication method and defect part instruction | indication apparatus which concern on this invention were equipped, and the case where the magnetic body detection sensor is arrange | positioned on both sides of a paper sheet is shown . It is a schematic perspective view which shows embodiment of arrangement | positioning of an ink marker. It is a figure for demonstrating operation | movement of an ink marker, and has shown the case where it exists in the reverse state in order to attach | subject a visual recognition index | index. It is a figure for demonstrating operation | movement of an ink marker, and has shown the case where it exists in the state advanced in order to attach | subject a visual recognition index | index.

Explanation of symbols

1 Calendar part 2 Reel part
2a reel
26 Reel drum 3 Winding 4 Defect detection device 5 Defect portion indexing device 6 Cutter device 7 Guide roll 8 Magnetic substance detection sensor (defect portion index detection means)
9 Slitter knife
10 Cutter roll
11 Ink marker
12 Conveyor
13 Ribbon marker
15a, 15b Ink pad
16 Saber D Defective part index P Paper sheet M Marking part N Marking part

Claims (6)

When a defect is present in the manufactured sheet material, the defect generated in the sheet material is detected before winding the sheet material on a reel, and a defect index is provided at the ear of the sheet material corresponding to the position where the defect exists. In the subsequent process on the wound sheet material, the defected part is removed with the defect index as a target, and a plurality of sheet materials are cut and flattened. In the defect part indicating method in the sheet material processing for removing the portion where the defect exists in the state where the sheet is formed and the flat sheet is laminated,
Detecting the defect index attached at the time of winding, when rewinding the winding,
With respect to the sheet material that is in the rewinding traveling, a visual indicator is attached to the portion corresponding to the detected defect portion indicator so as to be visible,
A sheet material characterized in that a flat sheet having a defect is removed with the visual index shown on the side surface of a laminated body of flat sheets cut and laminated into a flat shape as a target. Defect part indication method in processing.   The defect part indicating method according to claim 1, wherein a material that can be detected without using an optical detection unit is attached to the sheet material.   The defect part indicating method in sheet material processing according to claim 1, wherein the defect part index causes an attachment medium including a magnetic material to adhere to a sheet material. When a defect is present in the manufactured sheet material, the defect generated in the sheet material is detected before winding the sheet material on a reel, and a defect index is provided at the ear of the sheet material corresponding to the position where the defect exists. In the subsequent process on the wound sheet material, the defected part is removed with the defect index as a target, and a plurality of sheet materials are cut and flattened. In the defect portion indicating device in the sheet material processing for removing the portion where the defect exists in the state where the sheet is formed and the flat sheet is laminated,
A defective portion index detecting means for detecting a defective portion index attached at the time of winding, when rewinding the winding;
For the sheet material that is in the rewinding running, it comprises a visual indicator providing means for visually attaching a visual indicator to a portion corresponding to the defective portion index detected by the defective portion index detecting means,
When the defect portion index position detected by the defect portion index detecting means passes by rewinding travel, the visual index is given to the side surface of the sheet material by the visual index giving means,
A defect indication device in sheet material processing, wherein the visual indicator is made to appear on a side surface of a laminated body of laminated flat sheets cut into a flat shape.   5. The sheet material according to claim 4, wherein the defect portion index is a material that can be detected without using an optical detection means, and the material that is detected by the defect portion index detection means is attached to the sheet material. Defect part indicating device in processing. The defect index is an attachment medium containing a magnetic material adhered by a defect index providing means, the defect index detection means detects a magnetic field by the magnetic material, and based on the position of the detected magnetic field 6. The defect portion indicating device in processing a sheet material according to claim 4, wherein a visual indicator is attached by a visual indicator applying means.

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