JP2008020321A - Flaw cloth piece detector with flaw marking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the finding-out of a flaw part such as a stain or a rupture is very troublesome in a large area cloth piece like a sheet but a flaw marking device for applying a mark sewing as the index of a flaw part position to the large area cloth piece is not provided in a conventional flaw cloth piece detector. <P>SOLUTION: In the flaw cloth piece detector constituted so as to detect the flaw part A of a stretched cloth piece S by a monitor camera 3, a marker 4 capable of marking the fed stretched cloth piece S in the vicinity of the side edge part Sa thereof is installed at a predetermined position on the downstream side in a feed direction of the line monitoring position N corresponding to the monitor camera 3 and the marker 4 is operated on the basis of the signal from a controller 9 so as to be matched with the moving timing of the flaw part present line L of the stretched cloth piece S to the marking position of the marker 4 to mark the stretched cloth piece S of the flaw part present line L in the vicinity of the side edge part Sa thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for detecting a defective cloth piece that is a large-area cloth piece such as a sheet and has a defective portion such as dirt or tear, and more specifically, for marking a position corresponding to a defective portion in the defective cloth piece. The present invention relates to a defective cloth piece detecting device with a defect marking device.

  In hospitals and hotels, large-scale cloth pieces such as sheets are used in large quantities, and the used cloth pieces are washed and dried in a laundry factory, ironed, then folded into small pieces and delivered to the supplier. .

  Also, in a laundry factory, a large-area piece of cloth (sheet) to be treated is stretched on a series of treatment lines, and a monitor camera is used to monitor the cloth piece for defects such as dirt and tears. When it is determined that there is a defective portion, the defective cloth piece is excluded from the regular processing line. As this type of defect detection apparatus, there have been conventionally described in, for example, Japanese Patent Application Laid-Open No. 6-228861 (Patent Document 1), Japanese Patent Application Laid-Open No. 2004-177143 (Patent Document 2), and the like. In addition, the thing of Unexamined-Japanese-Patent No. 6-228861 (patent document 1) detects a defective part only from the single side | surface side of a cloth piece, and the thing of Unexamined-Japanese-Patent No. 2004-177143 (patent document 2) A defective portion is detected from both sides of the cloth piece.

  Then, a certain number of defective cloth pieces determined (excluded) by the detection device as being defective (excluded) are stored, and then the defective cloth pieces are stretched one by one and visually checked for a defect level ( The type of defect such as dirt and tear, and the degree of defect) were checked.

  By the way, a piece of cloth such as a sheet has a large area (there are various sizes, but in the case of a large size, about 3 m × 3 m). Conventionally, two people check a defective part of the piece of cloth. It was done manually by the workers. That is, two workers pick and spread one end side of the opposite side edge of the cloth piece, search for the defective part by visual inspection while pulling the other end side of the cloth piece, and determine the level of the defective part (defect contents). ). Depending on the defect level, the defective cloth piece may be a normal product (if the defect level is within an acceptable range), rewashed (if it is dirty), repaired (if it is torn), or discarded (dirt). (If it cannot be removed or repaired) is selected and sent to each processing step.

JP-A-6-228861 JP 2004-177143 A

  However, the conventional defect inspection work for defective cloth pieces has the following problems.

  That is, conventionally, even if a defective cloth piece is determined (excluded) as having a defective portion, it is unclear where the defective portion is in the large-area cloth piece, and from a large-area defective cloth piece such as a sheet. To search for a defective part, two workers expand one end of the opposite side edge of the cloth piece, and then the other end of the cloth piece is stretched to a predetermined small width (for example, a small width of about 60 to 80 cm). It is necessary to carefully look over the entire surface of each piece of cloth in each narrow range while pulling one by one. That is, for each piece of cloth, it is necessary to carefully look over the entire cloth piece by dividing it into a predetermined small width several times.

  As described above, conventionally, in order to search for a defective portion from a single large-area cloth piece, it is necessary to carefully look over the entire surface of the cloth piece by a predetermined small width several times. In addition, since it is necessary to look over the entire surface of the cloth with a very high level of attention, there is also a problem that eye fatigue increases when the same operation is performed for a long time.

  By the way, in a large-area cloth piece with a defective part, if the marking that displays the defective part existing line is attached to the cloth piece side edge part where the defective part is present in advance, it is not necessary to look over the entire cloth piece during the defective part inspection. The line with the defective part can be confirmed by finding the marking part at the edge part of the cloth piece. In this case, since the defective portion can be found by looking over the line (narrow width) at the position where the marking portion on the cloth piece side edge portion is present, the defective portion inspection becomes very simple.

  However, at present, there is no one that can mark a position corresponding to a defective portion on a large-area cloth piece such as a sheet.

  Accordingly, the present invention provides a defect with a defect marking device, in which marking can be applied to the edge portion of the cloth piece at the position corresponding to the defect portion so that the defect portion can be easily detected at the time of inspection of the defect portion of the cloth piece. An object of the present invention is to provide a cloth piece detection device.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a defective cloth piece detecting device with a defect marking device.

  The cloth piece handled in the present invention has a large area such as a sheet (including a futon cover). In a laundry factory, the large area cloth piece is passed through an ironing machine after washing and drying. The folding process is performed to a predetermined small area.

  Further, the present invention is directed to a defective cloth piece detecting device for detecting whether or not the stretched cloth piece coming out of the ironing machine has a defective portion such as dirt or tear. Is installed between the ironing machine and the folding machine. In addition, a large-area cloth piece such as a sheet is double-folded on both side edges in the longitudinal direction so that it can be easily distinguished from the side edges (single) in the short direction. And this kind of large-area cloth piece is stretched by a stretcher before passing through the ironing machine, and this stretcher is supplied in such a posture that the longitudinal direction (single side edge) of the cloth piece is directed left and right. The Therefore, as for the stretch cloth piece supplied on a conveyance conveyor via an ironing machine, the transversal direction (double side edge) has faced the conveyance direction.

The invention of claim 1 of the present application The defective cloth piece detecting device used in the invention of claim 1 of the present invention is to sequentially monitor the full width of the stretch cloth piece in the direction orthogonal to the carrying direction of the stretch cloth piece while the stretch cloth piece is being carried by the carrying conveyor. Monitoring is performed in a line shape, and the defective part of the stretch cloth piece is detected by the monitoring camera. Then, when it is determined that the stretched cloth piece has a defective portion, the defective cloth piece detection device excludes the defective cloth piece from the regular processing line.

  According to the first aspect of the present invention, in the above-described defective cloth piece detection apparatus, a marker that can mark the vicinity of the side edge portion of the stretched cloth piece being conveyed at a predetermined position on the lower side in the conveying direction from the line monitoring position by the monitoring camera. Is installed. In addition, the marking position by this marker is good to set to the range of about 5-10 cm from the side edge of a cloth piece.

  As the marking material used for this marker, a coloring material that can be removed by washing with water, a peelable label, or the like can be used. As the coloring material, for example, chalk, powdered pigment, liquid paint or the like can be used, and any coloring material can be used as long as the coloring material can be brought into contact with or sprayed on the cloth piece. In the case of a label, it may be attached to a piece of cloth using a labeling machine.

  In the first aspect of the invention, after the monitoring camera detects the defective portion of the stretch cloth piece, the signal from the controller is used in accordance with the timing when the defect portion existing line of the stretch cloth piece moves to the marking position by the marker. The marker is actuated so that marking can be performed in the vicinity of the cloth side edge of the defective part existing line.

  The controller stores the distance from the line monitoring position of the monitoring camera to the marker marking position, and calculates the time for the stretch cloth piece to reach the marking position from the line monitoring position according to the traveling speed of the conveyor. And a function of transmitting an activation signal to the marker.

  The defect cloth detecting device with a defect marking device according to claim 1 of the present application functions as follows.

  First, the stretch cloth piece coming out of the ironing machine is transported by the conveyor. If the stretch cloth piece passes through the line monitoring position by the surveillance camera, if there is a defective part (dirt, tear, etc.), the surveillance camera The defect detection signal is sent to the controller. In the controller, based on the defect detection signal from the monitoring camera, the time required for the defect existing line of the cloth to reach the marker marking position is calculated. An operation signal is sent from the controller to the marker in accordance with the timing when the defective part existing line of the cloth reaches the marking position, and the marker is used to mark the edge of the defective part existing line. Operates on. In addition, this marking is attached | subjected to one double fold edge part vicinity in a stretch cloth piece.

  In addition, if there are a plurality of defective parts on a single piece of cloth that are misaligned in the transport direction, the respective defective parts are sequentially detected by a monitoring camera, and each piece of defective part is present on the cloth piece side edge. Mark with a marker. The marked defective piece is removed from the regular processing line and stocked in a storage box or the like.

  In order to find the defective part from the defective cloth piece with the marking, two workers respectively pick the opposite side edge part on the marking side (double fold edge part side) and either side edge part thereof Find the marking part in Since there is always a defective portion on the cloth piece surface on the opposite extension line of the marking portion, the defective portion can be easily found using the marking portion as an index. Then, the defect level of the defective part is determined, and the defective cloth pieces are sorted into a predetermined rank.

  The defect marking device according to the first aspect of the present invention is suitable for collectively processing cloth pieces having substantially the same length in the longitudinal direction. For example, the cloth pieces of large and small sizes are mixed. In the case of processing in the above, it is necessary to set the marker corresponding to the position through which the side edge of the small-sized cloth piece passes. In this case, in the large-sized cloth piece, marking is performed at a position slightly inward (for example, 20 to 30 cm) from the side edge portion.

By the way, in the laundry factory, even if it is a sheet, it is often processed in a state where various sizes are mixed, but the cloth on the marking side that is conveyed on the conveyor by those sizes The position of one side edge is different. In the sheets, the length in the longitudinal direction, which is the lateral width during conveyance, is about 3 m for a large size and about 2.5 m for a medium size. A small-sized piece of cloth having a smaller longitudinal length can also be assumed.

  Therefore, in the invention of claim 2 of the present application, the marker (marking part) can be moved to an appropriate position in correspondence with the side edge part position on the marking side of the stretch cloth piece conveyed on the conveyor.

  That is, the invention according to claim 2 of the present application is the defective cloth piece detecting apparatus with defect marking apparatus according to claim 1, wherein the cloth piece side detects the side edge portion position on the marking side of the stretch cloth piece conveyed on the conveyer. An edge position detecting means is provided, and a marker that can move a single marking portion in a direction orthogonal to the transport direction by advancing / retreating operation means is employed.

  As the cloth edge side edge position detecting means, a monitoring camera for detecting a defective portion may be used as in the embodiment of the present invention. However, a plurality of photoelectric tubes at predetermined positions on the transfer conveyor at predetermined intervals in the transfer conveyor width direction. A sensor may be used.

  As the advancing / retreating operation means of the marking unit, for example, an extendable cylinder can be employed. The advancing / retreating means may be capable of advancing / retreating infinitely, or may perform a quantitative advancing / retreating operation in about 2 stages (3 positions).

  In the second aspect of the present invention, the controller receives the cloth side edge position detection signal issued from the cloth side edge position detecting means after the defect part detection signal from the monitoring camera is emitted, Has a function of operating the advancing / retreating operation means so as to be aligned with the actual conveyance position of the cloth piece side edge detected by the cloth piece side edge position detecting means.

  In this defective cloth piece detecting device with a defect marking device, when the surveillance camera issues a defective part detection signal while transporting the stretched cloth piece, the cloth piece side edge position detection signal from the cloth piece side edge position detecting means is provided. In response, the advancing / retreating operation means operates to align the marking portion with the actual conveyance position of the cloth piece side edge portion. Therefore, even if the stretched cloth pieces have different sizes (the conveyance positions of the side edge portions are different), it is possible to mark the appropriate position (near the cloth piece side edge portion) according to the size when the defective portion is detected.

Invention of claim 3 of the present application The invention of claim 3 of the present application also responds to the size at the time of detecting a defective portion, even in the case of stretched cloth pieces having different sizes (conveying positions of the side edge portions are different), as in the case of claim 2 above. It is intended to enable marking at an appropriate position (near the edge of the cloth piece side).

  According to a third aspect of the present invention, in the defective cloth piece detecting device with a defect marking device according to the first aspect, the cloth piece side edge portion for detecting the position of the side edge portion on the marking side of the stretch cloth piece conveyed on the conveyer. A position detecting means is provided, and a marker having a plurality of marking portions arranged at a predetermined interval in a direction orthogonal to the transport direction is employed.

  As the cloth piece side edge position detecting means, the same one as in the second aspect can be used.

  The number of marker markings is suitably about 2-4. In addition, the installation position of each marking part depends on the length of the long side of the cloth piece depending on the size, the side edge position for the large cloth piece, the side edge position for the medium cloth piece, and the small cloth piece It is set so as to correspond to each side edge portion position and the like.

  In the third aspect of the invention, the controller receives the cloth side edge position detection signal issued from the cloth side edge position detecting means after the defect part detection signal from the monitoring camera is issued, and receives the cloth side edge part. It has a function of operating one marking portion located at a position corresponding to the conveyance position of the actual cloth side edge detected by the position detection means.

  In the defective cloth piece detecting apparatus with a defect marking device according to claim 3, when the monitoring camera issues a defective part detection signal while transporting the stretched cloth piece, the cloth piece side edge position detection signal from the cloth piece side edge position detecting means is provided. In response to this, one marking portion corresponding to the actual conveyance position of the cloth piece side edge portion is activated. Therefore, in the case of claim 3 as well, even if the stretched cloth pieces are different in size (the conveyance position of the side edge portion is different), marking is performed at an appropriate position (near the cloth piece side edge portion) according to the size when the defective portion is detected. it can.

Effect of the Invention of Claim 1 In the defect cloth detection device with a defect marking device according to claim 1 of the present application, the defect in the defect cloth conveyed on the conveyor by the function of the monitoring camera, the marker, and the controller controlling them. There is an effect that the side edge portion position of the part presence line can be automatically marked.

  In addition, if there is a marking at the cloth piece side edge position of the defective part existing line in this way, the marking on the cloth piece side edge part can be used as a clue to locate the defective part of the defective cloth piece. Even so, the defect portion can be found out in a short time. In addition, since the marking indicating the position of the defective portion is attached in a small range near the side edge of the cloth piece, it can be relatively easily searched, and when the marking is found, the defective portion at the corresponding position can be easily found. Because it is possible, it is not necessary to look with high attention, and the fatigue of the eyes is reduced.

The effect of the invention of claim 2 of the present application The invention of claim 2 of the present invention is the defective cloth piece detecting device with the defect marking device of claim 1, further comprising cloth piece side edge position detecting means and advancing / retreating operation means for moving the marker. By controlling them with a controller, one marker (marking portion) can be aligned with the actual conveyance position of the cloth piece side edge portion.

  Therefore, in the invention of claim 2, in addition to the effect of claim 1, the cloth pieces of different sizes can be marked at appropriate positions (near the edge of the cloth piece side), and marking at each position can be performed. There is an effect that it can be performed with only one marker (marking portion).

Effect of the Invention of Claim 3 In the invention of claim 3 of the present application, the defect cloth detecting device with a defect marking device of claim 1 is provided with a cloth piece side edge position detecting means and a marker having a plurality of marking parts. A single marking portion corresponding to the actual conveyance position of the side edge portion of the cloth piece is activated by a signal from the controller.

  Therefore, in the invention of claim 3, in addition to the effect of claim 1, the cloth pieces of different sizes can be marked at appropriate positions (near the edge of the cloth piece side), and each marking part is positioned at a fixed position. Therefore, the advance / retreat operation means as in claim 2 is not necessary, and the waiting time for the advance / retreat operation means is unnecessary (the processing speed of the defect marking device can be increased).

  Hereinafter, a defect cloth detecting device with a defect marking device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIGS. 1 to 4 show a first embodiment, and FIGS. A second embodiment is shown.

  By the way, in a laundry factory, a large-sized piece of cloth such as a sheet used in a hospital or a hotel is delivered to a customer through each process of washing → drying → expansion → iron finishing → folding. In addition, in a laundry factory, when a large area cloth piece (sheet) is checked for defects such as dirt or tears in the middle of the processing process (before folding) with a monitoring camera and it is determined that there is a defect Eliminates the defective piece from the regular processing line. In addition, the defective cloth piece judged to have a defective part (excluded) is checked for defect level (defect type or defect degree such as dirt and tear) one by one later, and it is a normal product according to the defect level. Whether to re-wash, repair, or discard.

  There are various sizes of sheets, but a large size has a length in the longitudinal direction of about 3 m, and a medium size has a length in the longitudinal direction of about 2.5 m. A small-sized piece of cloth having a smaller length in the longitudinal direction can also be assumed.

  In addition, a large-area piece of cloth such as a sheet is double-folded on both side edges in the longitudinal direction so that it can be easily distinguished from the side edges (single) in the short direction. And this kind of large-area cloth piece is stretched by a stretcher before passing through the ironing machine, and this stretcher is supplied in such a posture that the longitudinal direction of the cloth piece is directed to the left and right. Therefore, as for the stretch cloth piece supplied on a conveyance conveyor via an ironing machine, the transversal direction (double side edge) has faced the conveyance direction.

1 to 4 The defective cloth piece detecting device of the first embodiment is installed between an ironing machine 5 and a folding machine 6 as shown in FIG. In addition, the ironing machine 5 and the folding machine 6 are connected via the conveyor 2, and normally, the stretch cloth piece S ₁ (S ₂ , S ₃ ) coming out of the ironing machine 5 is the end of the conveyor 2. part is folded by the first folding portion 61 of the folding machine 6 at (the position of the mark S _4), followed by further second folding section 62 second folding section 62 is conveyed to the (sign position S ₅₎ 2 The folded cloth pieces S ₆ are folded into a total of four.

The stretch cloth pieces supplied from the ironing machine 5 onto the conveyor 2 are mixed in various sizes as shown by reference numerals S ₁ , S ₂ , S ₃ in FIG. 2 or 4. The stretch cloth pieces (S ₁ , S ₂ , S ₃ ) are supplied so that the center of the left and right widths substantially coincides with the transport position center on the transport conveyor 2.

As shown in FIGS. 1 to 3, the defective cloth piece detection device includes a monitoring camera 3 for detecting a defective portion installed above the conveyor 2, and the monitoring camera 3 includes a stretch cloth piece S ₁ (S ₂ , S ₂ , And a controller 9 for controlling the defective cloth piece to be excluded from the regular line based on the defective portion detection signal T ₁ when the defective portion A (FIG. 2) of S ₃ ) is detected.

As the monitoring camera 3, a line sensor camera is used, and the stretched cloth pieces (S ₁ , S ₂ , S ₃ ) conveyed on the conveyor 2 can be sequentially monitored in a line shape. As shown in FIG. 3, the monitoring camera 3 is fixed to the support 31 (FIG. 1) at a position immediately above the center of the width of the conveyor 2. This monitoring camera 3 can monitor a range (angle range a in FIG. 3) that is slightly wider than the left-right width (W ₁ × 2 = about 3 m) of the maximum-sized stretch cloth piece S ₁ . When the surveillance camera 3 detects the defective portion A (FIGS. 2 and 4) of the stretch cloth pieces (S ₁ , S ₂ , S ₃ ) conveyed on the conveyor 2, the defect detection signal T ₁ is transmitted to the controller 9.

  An identification plate 21 is provided at the line monitoring position N of the monitoring camera 3 on the conveyor 2 so that the defective portion A of the stretched cloth piece can be easily identified. In addition, illumination lights 22 and 22 are installed before and after the line monitoring position N of the monitoring camera 3.

When the controller 9 receives the defective portion detection signal T ₁ from the monitoring camera 3, the controller 9 excludes defective cloth pieces having defective portions from the terminal portion of the conveyor 2 into the storage box 7 (reference S _{7 in} FIG. 1). ) It has a function. Specifically, when the controller 9 receives the defective portion detection signal T ₁ from the monitoring camera 3, the folding machine 6 (first folding) even if the defective cloth piece having the defective portion reaches the end portion of the transport conveyor 2. The operation signal is not issued to the part 61). With such folding machine 6 (first folding portion 61) is not working, the defect cloth falls directly accommodating box 7 from the terminal end of the conveyor 2 (code S _7).

Incidentally, the defect cloth S ₇ which is eliminated as there defect, although somewhere defect exists in, the large-area fabric piece is hard to locate the defect portion. Therefore, in the present application, a defect marking device for marking the cloth piece side edge portion of the line having the defective portion is attached to the defective cloth piece detecting device.

The defect marking apparatus according to the first embodiment shown in FIGS. 1 to 4 has a marker 4 that can be marked (symbol B) in the vicinity of the side edge portion Sa of the stretched cloth piece (S ₁ , S ₂ , S ₃ ) being conveyed. Have. As shown in FIG. 2, the marker 4 is located on the lower side in the conveying direction by a predetermined distance M from the line monitoring position N by the monitoring camera 3, and the side edge of the stretch cloth piece (S ₁ , S ₂ , S ₃ ). The part Sa is installed on the moving line.

  As the marking material for the marker 4, a coloring material that can be removed by washing with water, a peelable label, or the like can be used. As the coloring material, for example, chalk, powdered pigment, liquid paint or the like can be used, and any coloring material can be used as long as the coloring material can be brought into contact with or sprayed on the cloth piece. On the other hand, in the case of a label, it may be attached to a piece of cloth using a labeling machine.

  In the first embodiment, as the marker 4, a marker that can move the single marking portion 41 in the direction orthogonal to the transport direction (hereinafter referred to as the left-right direction) by the advance / retreat operation means 42 is employed. As the advance / retreat operation means 42, a cylinder that expands and contracts steplessly is employed.

The advancing / retreating operation means (cylinder) 42 has its expansion / contraction amount adjusted by a signal T ₂ from the controller 9. Further, the marking portion 41 of the marker 4 is actuated by a signal T ₃ from the controller 9.

  Incidentally, the transport direction distance M from the line monitoring position N by the monitoring camera 3 to the installation position of the marker 4 is stored in the controller 9 in advance. Further, the controller 9 has a function of calculating the time during which the transport conveyor 2 (defect line existence line L described later) moves the distance M from the distance M and the transport speed of the transport conveyor 2.

Further, the defect marking device has cloth piece side edge position detecting means 8 for detecting the position of the side edge part Sa of the stretch cloth piece conveyed on the conveyer 2. In this embodiment, the monitor camera 3 and the controller 9 are substituted for the cloth edge side edge position detecting means 8. That is, as shown in FIG. 3, the monitoring camera 3 detects the side edge portion Sa on the marker installation side of the stretched cloth piece on the conveyor 2, while the controller 9 detects the monitoring camera 3 based on the side edge detection signal. An angle b with respect to a vertical line (being the transfer position center) from the center is calculated, and distances (W ₁ , W ₂ ) from the transfer position center to the side edge portions Sa of the stretch cloth pieces (S ₁ , S ₂ , S ₃ ) are calculated. , W ₃ ), the position of the cloth side edge portion Sa can be specified. In another embodiment, as the cloth piece side edge position detecting means 8, a plurality of photoelectric tubes are provided at predetermined small intervals in the width direction in the vicinity of the corresponding side edge of the stretch cloth piece conveyed on the conveyer 2. You may employ | adopt what has arrange | positioned the sensor.

  The defect marking apparatus of the first embodiment is controlled by the controller 9 as follows. During operation, the conveyor 2 is continuously running.

When the leading end of the stretched cloth piece on the conveyor 2 reaches the line monitoring position N by the monitoring camera 3, the cloth piece side edge position detecting means 8 (the monitoring camera 3 and the controller 9) The side edge portion Sa position is detected. In the case where there is a defective portion A in the stretch cloth piece, for example, the defect portion A (defective portion existence line F) of the stretch cloth piece is located on the line monitoring position N by the monitoring camera 3 as shown in FIG. Sometimes, the monitoring camera 3 detects the defective portion A, and the defective camera detection signal T ₁ is transmitted from the monitoring camera 3 to the controller 9. Then, first, the position corresponding to the side edge of the stretch cloth piece (for example, reference numerals 41 and 41 in FIGS. 2 and 4) is determined by a signal T ₂ from the controller 9 (a signal for operating the cylinder 42 of the marker 4). ′, 41 ″). Next, when the defective portion existing line L of the stretched cloth piece moves to the marking position by the marking portion 41 (the position of the stretched cloth piece is the position of S ₁ ′ in FIG. 2). ), An operation signal T ₃ is issued from the controller 9 to the marking portion 41 to activate the marking portion 41. At this time, the marking B ( 2) (see the stretch fabric piece at the position of S ₁ ″ in FIG. 2).

As in the fabric piece shown in the letter S ₁ designates in FIG 4, the defect portion A of the plurality of locations (two locations) on one, if there is A is directly below the defect A, A is the line monitoring position N The camera 3 detects a defective portion each time it is positioned at the position, and in the same manner as described above, markings B and B are respectively attached to the two portions of the cloth side edge portion Sa where the defective portion existence lines L and L are located. ing.

  Since the cloth piece with the marking B is a defective cloth piece, it falls into the storage box 7 from the terminal portion of the conveyor 2. In addition, from the ironing machine 5, a stretch cloth piece is supplied to the conveyance conveyor 2 one by one, and only the stretch cloth piece (defective cloth piece) with a defective part is stored in the storage box 7 similarly to the above. When a certain number of defective cloth pieces are stored, the worker visually inspects the defect level of each defective cloth piece. At that time, the marking B is attached to the cloth piece side edge of the defective portion existing line L. Therefore, it is possible to easily find the position of the defective portion A. Note that the side edge to which the marking B is attached is one of the side edges that are double-folded, and two workers may search for the marking B along each side edge of the double-fold.

  Thus, in the defective cloth piece detecting apparatus with the defect marking device of the first embodiment, the side edge portion of the defective portion existing line L in the defective cloth piece is obtained by the function of the monitoring camera 3, the marker 4, and the controller 9 that controls them. The marking B can be automatically attached to the position.

In the first embodiment, the cloth piece side edge position detecting means 8 and the advancing / retreating operating means 42 for moving the marker 4 are provided, and one marker (marking portion 41) is controlled by the controller 9. Even so, the marking B can be applied to the vicinity of each side edge portion Sa of the cloth pieces (S ₁ , S ₂ , S ₃ ) having different sizes. It should be noted that the marking B is easy to find when located at a position close to the cloth piece side edge portion Sa.

Second Embodiment of FIGS. 5 to 6 In this second embodiment, FIG. 5 corresponds to FIG. 2 of the first embodiment, and FIG. 6 corresponds to FIG. 3 of the first embodiment.

The defect cloth detecting device with defect marking device of the second embodiment uses a plurality of marking portions 44 (three in this embodiment) as the markers 4 as compared with the first embodiment. The marking portions 44, 44, 44 are fixed at a predetermined small interval in the conveying conveyor width direction, and the marking portions 44, 44, 44 are detected by the cloth piece side edge position detecting means 8. The difference is that each marking unit is individually activated by signals (T _{4 to} T ₆ ) from the controller 9 based on the position.

That is, the three marking portions 44, 44, 44 constituting the marker 4 are cloth pieces (S _{1) of} various sizes that are supplied onto the conveyor 2 at the lower position in the conveying direction than the line monitoring position N by the monitoring camera 3. , S ₂ , S ₃ ) are fixed at predetermined intervals in the width direction of the conveyer so as to correspond to the position where the side edge portion Sa advances. Further, the controller 9 applies the one marking portion 44 corresponding to the position of the cloth side edge portion Sa detected by the cloth side edge position detecting means 8 when the monitoring camera 3 detects the defective portion A of the cloth piece. The operation signal is emitted.

  In addition, since the other structure in this 2nd Example is the same as the thing of the said 1st Example, the description is used.

In the defect marking device with defective cloth detector of the second embodiment, mounting three marking portions 44,44,44 at each fixed state as markers 4, a signal from the controller 9 (T ₄ ~T ₆₎ Since one marking portion 44 corresponding to the actual conveyance position of the cloth piece side edge portion Sa is operated, a plurality of marking portions 44 are necessary, but the advancing / retreating operation means 42 as in the first embodiment is provided. This eliminates the need for waiting for the advance / retreat operation means 42 to operate (the processing speed of the defect marking device can be increased).

  Each of the first and second embodiments is suitable for processing a mixture of cloth pieces having different sizes, but in another embodiment, a single marker (marking portion) is positioned at a fixed position. It can also be used in a fixed state. In this case, the marker is set in correspondence with the position through which the side edge of the small-sized cloth piece passes.

It is a side view of the defective cloth piece detection apparatus with a defect marking apparatus of 1st Example of this application. FIG. 2 is an enlarged plan view of a defect marking device portion in FIG. 1. It is the III-III arrow line view of FIG. It is function explanatory drawing of the defect marking apparatus of FIG. It is a top view (figure 2 equivalent figure) of the defect marking apparatus part of 2nd Example of this application. FIG. 6 is a view corresponding to FIG. 3 of the defect marking device of FIG. 5.

Explanation of symbols

1 is a defective cloth piece detection device, 2 is a conveyor, 3 is a surveillance camera, 4 is a marker, 8 is a cloth piece side edge position detecting means, 9 is a controller, 41 is a marking section, 42 is an advancing / retreating operation means, and 44 is a marking , A is a defective part, B is a marking, S ₁ , S ₂ , and S ₃ are spread cloth pieces of various sizes, Sa is a cloth piece side edge part, L is a defective part existing line, and N is a line monitoring position.

Claims (3)

While the stretch cloth pieces (S ₁ , S ₂ , S ₃ ) are being transported by the transport conveyor (2), the entire width in the direction perpendicular to the transport direction of the stretch cloth pieces is monitored in a line by the monitoring camera (3) sequentially. In the defective cloth detection device (1) in which the monitoring camera (3) detects the defective part (A) of the stretched cloth,
A marker (4) that can be marked near the side edge (Sa) of the stretched cloth piece being conveyed is installed at a predetermined position on the lower side in the conveyance direction from the line monitoring position (N) by the monitoring camera (3). And
After the monitoring camera (3) detects the defective part (A) of the stretched cloth piece, the defect part existing line (L) of the stretched cloth piece moves to the marking position by the marker (4). The marker (4) is actuated by a signal from the controller (9) to mark the vicinity of the cloth piece side edge (Sa) of the defect existing line (L).
A defective cloth piece detecting device with a defect marking device. In the defective cloth piece detecting apparatus with a defect marking apparatus according to claim 1,
While provided with cloth piece side edge position detecting means (8) for detecting the side edge position on the marking side of the stretch cloth pieces (S ₁ , S ₂ , S ₃ ) conveyed on the conveyer (2),
As the marker (4), a single marking portion (41) that can be moved in the direction orthogonal to the transport direction by the advancing / retreating operation means (42) is adopted,
The controller (9) receives the cloth side edge position detection signal issued from the cloth side edge position detecting means (8) after the defect part detection signal (T ₁ ) is issued from the monitoring camera (3). Then, the advancing / retreating operation means (42) is operated so as to align the marking portion (41) with the actual conveyance position of the cloth piece side edge portion (Sa) detected by the cloth piece side edge portion position detection means (8). Has a function to
A defective cloth piece detecting device with a defect marking device. In the defective cloth piece detecting apparatus with a defect marking apparatus according to claim 1,
While provided with cloth piece side edge position detecting means (8) for detecting the side edge position on the marking side of the stretch cloth pieces (S ₁ , S ₂ , S ₃ ) conveyed on the conveyer (2),
As the marker (4), a plurality of marking portions (44, 44, 44) are arranged with a predetermined interval in the direction orthogonal to the transport direction, and
The controller (9) receives the cloth side edge position detection signal issued from the cloth side edge position detecting means (8) after the defect part detection signal (T ₁ ) is issued from the monitoring camera (3). Thus, it has a function of actuating one marking portion (44) located at a position corresponding to the transport position of the actual cloth side edge (Sa) detected by the cloth side edge position detecting means (8). ,
A defective cloth piece detecting device with a defect marking device.

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