JPWO2014091908A1 - Label long body inspection device and label long body inspection method - Google Patents

Abstract

Minimize the occurrence of defective products with different types of labels. The joint detection means 4 for detecting the joint where the long label bodies 10 are joined together, and the label identifier provided on each label of the long label body 10 to identify the type of label, at least the joint It includes an identifier reading unit 5 that reads before and after, and a discriminating unit 1 that discriminates the difference between label identifiers before and after the joint. The label identifier is a photoelectric tube mark serving as a reference for the cutting position, and the shape of the photoelectric tube mark varies depending on the type of the label. The identifier reading means 5 is an image sensor that reads the shape of the photoelectric tube mark.

Description

  The present invention relates to a label long-body inspection apparatus and a label long-body inspection method for inspecting a label long body in which labels are continuously formed in the longitudinal direction.

  A long label body having a desired length may be formed by joining ends of the long label body (see Patent Document 1 below). During the joining work, an operator may mistakenly join different types of long label bodies. If you do not realize that different types of label long bodies are connected together in this way, set the label long body on the label mounting machine and, for example, sequentially load the labels on the container. Many defective products with different types of labels attached to the labels to be mixed will be mixed.

Japanese Patent No. 4776638

  Therefore, the present invention has been made in view of the above-described conventional problems, and an object thereof is to suppress the generation of defective products with different types of labels as much as possible.

  The present invention was made to solve the above problems, and the label long-body inspection device according to the present invention includes a seam detection means for detecting a seam in which the label long bodies are joined together, An identifier reading means for reading a label identifier provided on each label of the long label body to identify the type of the label at least before and after the joint, and a discriminating means for determining the difference between the label identifiers before and after the joint. It is characterized by having. The label in the present invention includes a label having no design and having only characters in a point.

  In the label long body inspection apparatus having the above configuration, when a joint exists in the long label body, the joint detection means detects the joint. Then, the identifier reading unit reads the label identifier located on the front side in the longitudinal direction of the joint and the label identifier located on the rear side in the longitudinal direction of the joint, and the discriminating unit based on the read result The difference between the label identifiers before and after is determined. If the label identifier is the same before and after the joint, that is, the same on both sides of the joint as viewed in the longitudinal direction, a joining error has not occurred, and conversely, the label identifier is different before and after the joint. If so, a joining error has occurred at the joint.

  In particular, the label identifier is a photoelectric tube mark serving as a reference for the cutting position, and the shape of the photoelectric tube mark varies depending on the type of the label, and the identifier reading means is an image sensor that reads the shape of the photoelectric tube mark. preferable. There are various forms of label identifiers, for example, the color and type of ink for printing the display portion of the label can be changed for each type of label and the display portion can be used as the label identifier, By reading the label identifier as an image by the image sensor, the label identifier can be easily read, and the difference can be easily determined from the image data. In addition, when a photoelectric tube mark is provided on each label of the long label body as a reference for the cutting position, a separate label identifier becomes unnecessary by using the photoelectric tube mark as a label identifier. The marks enable accurate cutting position control without any restrictions on the design.

  Furthermore, it is preferable that the photoelectric tube mark has a long shape along the width direction of the long label body, and the shape of the end portion in the longitudinal direction of the photoelectric tube mark differs depending on the type of the label. When the photoelectric tube mark has a long shape along the width direction of the long label body, when the long label body is drawn out in the longitudinal direction and cut into a predetermined length, it can be easily detected as a reference for the cutting position. There are advantages. By changing the shape of the end portion in the longitudinal direction of the photoelectric tube mark having such a shape in accordance with the type of the label, the vicinity of the central portion in the longitudinal direction of the photoelectric tube mark is used as a detection region as a reference for the cutting position. be able to. Therefore, even if the photoelectric tube mark is used as a label identifier, it does not affect the detection of the photoelectric tube mark as a reference for the cutting position, or the influence can be reduced.

  Further, in the label long body inspection method according to the present invention, in order to identify the type of label, a label identifier is previously formed on each label of the label long body, and the long label bodies are joined together. It is characterized in that the presence or absence of a joining error is inspected by discriminating between the label identifiers before and after the eyes.

  As described above, the label long-body inspection apparatus according to the present invention automatically inspects for the presence of a joining error by detecting a joint and discriminating between the label identifiers before and after the joint. Therefore, it is possible to easily suppress the occurrence of defective products in which different types of labels are erroneously mounted.

  Further, the label long-body inspection method according to the present invention inspects the presence of a joining error by determining the difference between the label identifiers before and after the joint, so that a defective product in which different types of labels are erroneously mounted Can be easily suppressed.

The block diagram of the label elongate body inspection apparatus in one Embodiment of this invention. Schematic of a label long body. Schematic of the label formed by cut | disconnecting the label elongate body. The principal part detail drawing containing the partially broken line of the label long body. (A) thru | or (e) is a figure which shows the variation of the detailed shape of the photoelectric tube mark as a label identifier in the label long body. (A) And (b) is the schematic which shows other embodiment of a label elongate body.

  Hereinafter, a label long-body inspection apparatus and a label long-body inspection method according to an embodiment of the present invention will be described with reference to FIGS. The label long-body inspection apparatus shown in FIG. 1 has a joining error in which different types of label long-body 10 are erroneously joined when a joint (not shown) is present on the label-long body 10. If it is happening, it is for detecting it.

  First, the long label body 10 to be inspected will be described. As shown in FIG. 2, the long label body 10 has a continuous label along its longitudinal direction and is cut at a predetermined cutting position. Is divided into individual labels. Specifically, the long label body 10 is obtained by cutting a raw film having characters, figures, etc. printed on at least one side of a transparent plastic film, in particular, the back, into a predetermined width, and from the cut long film with a predetermined width. It is formed in a cylindrical shape so that its longitudinal direction is the axial direction and is folded flat. As shown in FIG. 2, the long label 10 has a display area 11 (hatched portion) that is an area where characters, graphics, and the like are printed, and a non-display area 12 in the longitudinal direction. The long label body 10 is cut into fixed labels for each predetermined length with the non-display area 12 as a cutting position, and is divided into individual labels. In FIG. 2, the position indicated by the two-dot chain line is the cutting position C, and the length indicated by the symbol L is the total length of one label.

  In the long label 10, the photoelectric tube mark 20 serving as a reference for the cutting position C corresponds to the total length L of the label so that the long label 10 can be accurately cut at a predetermined cutting position C. It is formed every fixed length. The photoelectric tube mark 20 has a long rectangular shape along the width direction of the long label body 10 and is entirely filled with a single color. One phototube mark 20 is formed in each non-display area 12, and a transparent portion that is not printed exists around the phototube mark 20. In other words, in the present embodiment, only the photoelectric tube mark 20 is printed in the non-display area 12, and the non-display area 12 is not printed except for the photoelectric tube mark 20 and is all a transparent portion. The phototube mark 20 is located at a substantially central portion in the length direction of the non-display area 12 (longitudinal direction of the long label body 10), and the above-described cutting position C is the phototube mark 20 and the display area 11 on the rear side. And is set between.

  FIG. 3 shows one label 13 formed from the long label body 10. The photoelectric tube mark 20 is formed in the vicinity of the cutting position C, that is, in the vicinity of the end portion of the label 13 in the axial direction. In the present embodiment, the photoelectric tube mark 20 is formed particularly in the vicinity of the lower end portion 13b of the label 13. Since the photoelectric tube mark 20 is formed in the vicinity of the cutting position C, that is, in the vicinity of the end portion in the axial direction of the label 13 in this way, the photoelectric tube mark 20 is less noticeable. In particular, the label 13 is a plastic having heat shrinkability. When the film is made of a film and the amount of shrinkage in the vicinity of the end of the label 13 is relatively large, the photoelectric tube mark 20 is more inconspicuous when mounted on the container, which is preferable. .

  Further, the position of the photocell mark 20 in the width direction (circumferential direction) of the long label 10 is arbitrary, but in the present embodiment, it is located in the vicinity of the center seal portion 14 as shown in FIG. In FIG. 4, the display area 11 and the non-display area 12 are not shown. The long label body 10 is formed into a cylindrical shape by overlapping both end portions 15 and 16 of a long film. As shown in FIG. 4, the other side end portion 16 is overlapped on the outside of one side end portion 15 of the long film, and the center seal portion 14 is formed by being bonded with a width shorter than the width of the overlapping portion 17. Has been. The center seal portion 14 is formed not at the center in the width direction of the overlapping portion 17 but at a position biased toward the edge of the other side end portion 16 of the long film. The photoelectric tube mark 20 is formed at a position slightly away from the edge of one side end portion 15 of the long film, and covers the other side of the photoelectric tube mark 20 to the other side of the long film. The end 16 is superimposed on the outside. Therefore, the predetermined region on the one end side in the longitudinal direction of the photoelectric tube mark 20 is located in the overlapping portion 17, and the remaining remaining region of the photoelectric tube mark 20 protrudes from the overlapping portion 17. Further, the center seal portion 14 is positioned on the photoelectric tube mark 20 so as to overlap the width of the center seal portion 14 and the region of the photoelectric tube mark 20 covered by the other side end portion 16 of the long film. The width is substantially the same.

  The long label body 10 may be formed with a joint (not shown) in which the long label bodies 10 are joined together. For example, the long label body 10 is often wound into a roll to form a roll body, but there may be one or more joints on one roll body. In some cases, a plurality of roll bodies are joined together to increase the total length of the long label body 10, and in that case, a connecting portion between the roll bodies serves as a joint. For example, a metal tape is attached to such a joint so that the location can be easily detected.

  By the way, when connecting the label long bodies 10 as mentioned above, an operator may connect the label long bodies 10 from which a kind differs accidentally. In particular, the display form of the label 13 is similar, and it is difficult to distinguish at first glance. For example, even when the label 13 is attached to a container having the same shape, the contents are different. In the case where the display form of the label 13 is different, or the display form of the label 13 changes depending on the manufacturing place, the shipping destination, the country or region of shipment, etc. even if the contents are the same as the container, Connection mistakes are likely to occur. When such a connection mistake occurs, the type of the label 13 changes before and after the connection even in the long label 10, and the same label 13 is originally applied to the same product. Where to be attached, different types of labels 13 are attached before and after the joint. In order to check whether or not such a joining error has occurred in the long label body 10, a label identifier for identifying the type of the label 13 is formed on each label 13 in advance.

  In the present embodiment, the photoelectric tube mark 20 is also used as a label identifier. That is, a phototube mark 20 having a different shape is formed for each type of label 13. For example, as shown in FIG. 5, the shape of the end portion in the longitudinal direction of the photoelectric tube mark 20 is changed. If, for example, a rectangular version in which all four corners are perpendicular as shown in FIG. 5A is a basic version, all four corners of the rectangle are chamfered in an arc shape as shown in FIG. 5B. A deformed version of the shape formed, a deformed version of the shape in which one corner at one end in the longitudinal direction of the rectangle is obliquely chamfered as shown in FIG. A modified version of a shape in which one corner at the other end of the rectangle is chamfered diagonally, or the entire length of both ends in the longitudinal direction of the rectangle is cut diagonally as shown in FIG. Various versions of photoelectric tube marks 20 such as a deformed version having a quadrangular shape are prepared and manufactured for the number of types of labels 13, and different versions of photoelectric tube marks 20 are used depending on the type of label 13. It prints to the bell 13. The size of the portion to be changed at the end of the photoelectric tube mark 20 is preferably 0.2 mm or more from the viewpoint of detection accuracy, and 1 mm or less from the viewpoint of making it less noticeable when viewed visually. Is preferred. For example, in the shape in which the corner is obliquely chamfered as shown in FIG. 5D, the length of one side of the chamfered portion is preferably 0.2 mm to 1 mm.

  The long label inspection apparatus of the present embodiment inspects whether or not a joining error has occurred in such a long label 10, and cuts the photoelectric tube mark 20 as shown in FIG. An image as an identifier reading means for reading a mark sensor 3 as a reference for the position C, a metal sensor 4 as a joint detection means for detecting a joint of the long label body 10, and a photoelectric tube mark 20 as a label identifier. A sensor 5, a control device 1 constituting discrimination means for discriminating the difference in shape of the photoelectric tube mark 20 before and after the joint, and an alarm device 6 for notifying the operator of the presence of a joint error are provided. Yes. In FIG. 1, the mark sensor 3, the metal sensor 4, and the image sensor 5 are sequentially illustrated from the front side (downstream side) in the label conveyance direction A, but the mark sensor 3, the metal sensor 4, and the image sensor are illustrated. 5 may be arranged in any order, and these three sensors 3, 4 and 5 are arranged in the same direction in the label conveying direction A by arranging them along the width direction of the long label body 10. Good. The transport direction A of the label 13 is appropriately set in consideration of the final mounting direction of the label 13.

  The mark sensor 3 is a photoelectric sensor that optically detects the photoelectric tube mark 20, and a reflective type or a transmissive type is used. The position of the mark sensor 3 is set so as to detect the central portion of the photoelectric tube mark 20 in the longitudinal direction. When the mark sensor 3 detects the photoelectric tube mark 20, it sends an output signal to the control device 1. The long label 10 is conveyed toward the right side in the drawing by a conveying device (not shown). This conveyance is intermittent feeding, and is stopped by feeding a length corresponding to the total length L of the label 13, and in this state, the long label body 10 is cut at the cutting position C by a cutting device (not shown). The reference distance between the mark sensor 3 and the photoelectric tube mark 20 on the rear side when the long label 10 is cut is set and inputted in advance and stored in the memory 2 as a storage device. The control device 1 controls the transport device and the cutting device. After the cutting device cuts the long label body 10, the transport device transports the long label body 10, and the mark sensor 3 detects the photoelectric tube mark 20. Whether or not the cutting device is cutting the predetermined cutting position C is determined from the time until the cutting. For example, the amount of deviation from a predetermined cutting position C is calculated and displayed, or an alarm is issued when the amount of deviation exceeds an allowable range. The alarm device 6 includes, for example, a speaker device that emits an alarm sound, an alarm lamp, a display device that displays warning contents, and the like, and it is also preferable to appropriately combine them. The control device 1 always displays the amount of deviation on the display device. When the amount of deviation exceeds a preset allowable range, the control device 1 displays a warning content on the display device, or displays a speaker device or an alarm lamp. To notify the operator that the amount of deviation of the cutting position C has exceeded the allowable range. Further, when the deviation amount of the cutting position C exceeds the allowable range, the control device 1 may control the transport device to stop the transport of the long label body 10.

  When the metal sensor 4 detects the metal tape at the joint, it sends a signal to the control device 1. The image sensor 5 reads the shape of the photoelectric tube mark 20, and a CCD, CMOS, or the like is used. The read image data of the photoelectric tube mark 20 is sent to the control device 1, and the control device 1 sends the received image data. Is processed and stored in the memory 2, and image data is read from the memory 2 as necessary. The image sensor 5 is preferably arranged at a position where the photoelectric tube mark 20 can be photographed at the timing when the intermittently fed long label 10 is stopped. Therefore, it is preferable to arrange the image sensor 5 at a position where the photoelectric tube mark 20 can be photographed at the timing when the cutting device cuts the long label body 10.

The area (imaging area) read by the image sensor 5 may be a part or the whole of the photoelectric tube mark 20, but in this embodiment, the entire shape of the photoelectric tube mark 20 is read. Further, all the photoelectric tube marks 20 formed for each label 13 may be read sequentially, or may be read at intervals such as every other or every other two.
Further, for example, when a long label 10 is newly set, one or a plurality of photoelectric tube marks 20 may be read only immediately after the start of conveyance and not thereafter read, and then the metal sensor 4 may be connected. However, it may be possible to resume reading only when one is detected. However, it is preferable that a plurality of reading is resumed.

  In any case, when a new long label 10 is set, it is preferable to store one or more phototube marks 20 at least after the start of conveyance and store the image data in the memory 2. Also, when reading all the phototube marks 20 or reading them at intervals such as every other interval, that is, when reading the phototube marks 20 continuously during transportation, store them in the memory 2. In this case, the image data of a plurality of photoelectric tube marks 20 (for example, five or ten) is stored in the memory 2. It is preferable to memorize it.

  The control device 1 performs such normal control until the metal sensor 4 detects the joint. And if the metal sensor 4 detects a joint, the control apparatus 1 will start label difference discrimination | determination control. That is, the control device 1 compares the shape of the photoelectric tube mark 20 on the rear side of the joint with the shape of the photoelectric tube mark 20 on the front side of the joint. When the shape of the photoelectric tube mark 20 on the front side of the joint is the same as that of the photoelectric tube mark 20 on the rear side of the joint, the above-described label difference determination control is terminated and the normal control is returned to. If the shape of the photoelectric tube mark 20 on the front side of the joint is different from the shape of the photoelectric tube mark 20 on the back side of the joint, it is determined that a joining error has occurred, and a signal is sent to the alarm device 6. To send an alarm. As a method for issuing an alarm, the same method as that in the case of the deviation amount of the cutting position C can be adopted. Moreover, you may stop conveyance of the label long body 10 while issuing an alarm or without issuing an alarm.

  Depending on the arrangement of the metal sensor 4 and the image sensor 5, for the photoelectric tube mark 20 positioned immediately before or after the joint, the detection timing of the joint by the metal sensor 4 and the detection of the photoelectric tube mark 20 by the image sensor 5. It is also conceivable that the timing of the above is reversed. For example, when the metal sensor 4 is arranged on the front side in the label conveying direction A and the image sensor 5 is arranged on the rear side in the label conveying direction A, the photoelectric tube read by the image sensor 5 after the metal sensor 4 detects the joint. The mark 20 becomes the photoelectric tube mark 20 on the rear side of the joint. However, the photoelectric tube mark 20 read by the image sensor 5 immediately before the metal sensor 4 detects the joint, the photoelectric tube mark 20 on the rear side of the joint. Or the photoelectric tube mark 20 on the front side of the joint. Conversely, when the image sensor 5 is arranged on the front side in the label conveying direction A and the metal sensor 4 is arranged on the rear side in the label conveying direction A, the image sensor 5 is immediately after the metal sensor 4 detects the joint. The photoelectric tube mark 20 to be read may be the photoelectric tube mark 20 on the front side of the joint. Therefore, it is preferable to set the photoelectric tube mark 20 used for label distinction determination in consideration of the arrangement of the metal sensor 4 and the image sensor 5.

It is also preferable not to use the photoelectric tube mark 20 read immediately before detection of the joint or the photoelectric tube mark 20 read immediately after detection for the label 13 difference determination.
Therefore, the memory 2 always stores a plurality (for example, five or ten) of image data of the photoelectric tube marks 20 sequentially read along the label conveying direction A, and stores the old ones (labels) It is preferable to replace the photocell mark 20 with the new photocell mark 20 while erasing in order from the image data of the phototube mark 20 positioned at the foremost side in the transport direction A). For example, if the specification is such that image data of five photoelectric tube marks 20 is always stored in the memory 2, when the metal sensor 4 detects a joint, the image data of the photoelectric tube mark 20 read immediately before the detection is detected. The remaining four pieces of image data are not used for label difference determination, but are used for label difference determination as image data of the photoelectric tube mark 20 on the front side of the joint. Also, for the photoelectric tube mark 20 that is read after the joint is detected, the photoelectric tube mark 20 that is read immediately after the detection is not used, for example, the photoelectric tube mark 20 that is read second or later after the joint is detected is used for label discrimination. In the case where the image data of the four photoelectric tube marks 20 on the front side of the joint as described above is used as a comparison target, image data corresponding to four pieces, that is, joint detection is used. It is preferable to compare the image data of the second to fifth photoelectric tube marks 20 as those of the photoelectric tube marks 20 on the rear side of the joint. Then, by comparing the image data of the plurality of photoelectric tube marks 20 in this way, the problem of reading error is eliminated. That is, when the image data of a plurality of photoelectric tube marks 20 are compared and there is only one set of different image data, there is a possibility of reading error. It is preferable to determine that the type of the label 13 is different for the first time when there are a plurality of sets.

  In addition, it may be assumed that the shape of the photoelectric tube mark 20 located in the vicinity of the joint cannot be accurately detected from the relationship such as the position of the joint or the joining form, but as described above, immediately before the joint is detected. If the photoelectric tube marks 20 read immediately after detection are not used for the label difference determination, the label difference determination can be performed accurately without being affected by the position of the joint.

  Although the description has been given of the specification in which the label difference determination control is terminated and the control returns to the normal control when the shape of the photoelectric tube mark 20 in front of the joint and the shape of the photoelectric tube mark 20 in the rear of the joint are the same. Even if the shape of the photoelectric tube mark 20 on the front side of the joint and the shape of the photoelectric tube mark 20 on the rear side of the joint are the same, the control for the next connection is performed without ending the label discrimination determination control. You may make it recheck before detecting eyes. For example, after detecting a joint, the difference in the type of the label 13 may be checked again based on the shape of the photoelectric tube mark 20 after a predetermined time has elapsed, or after detecting the joint, for example, a constant such as 100 After the number of phototube marks 20 has passed, the type of label 13 may be checked again. Further, after that, the check may be continued every certain time or every certain number (for example, every 100). In such a specification, the image data of the photoelectric tube mark 20 on the front side of the joint is continuously stored separately in the dedicated zone of the memory 2.

  The label long-body inspection apparatus having the above-described configuration is arranged, for example, on the upstream side of a winder that winds the label long-body 10 formed in a cylindrical shape from a long film into a roll, or the label length It is used by being placed on a label mounting machine (labeler, in particular, a shrink labeler) that sequentially mounts the cut label 13 on a container or the like while cutting the scale body 10. When arrange | positioning to a label mounting machine here, the vicinity of the exit of the sending apparatus (feeder) which feeds the label long body 10 wound up by roll shape, or the winding reel by which the label long body 10 was wound, or It is preferably provided in the vicinity of the outlet when the reel is wound directly from a winding reel group composed of a plurality of winding reels. In this way, a joining error can be detected at a relatively early stage of the label mounting process.

  Then, as described above, the shape of the photoelectric tube mark 20 on the front side of the joint is compared with the shape of the photoelectric tube mark 20 on the rear side, and the presence / absence of the joining mistake is automatically determined by determining the difference in the shape. Since the inspection can be performed, it is possible to prevent a situation in which a large number of defective products are generated due to a connection error.

  In addition, since the shape of the photoelectric tube mark 20 is read as image data, the identifier reading means can be simply configured, and it is not necessary to separately provide a label identifier in addition to the photoelectric tube mark 20. Further, even if the design content of the label 13 is changed, it is not necessary to readjust the setting of the label long-body inspection device unless the photoelectric tube mark 20 is changed, and there is no restriction on the design change of the label 13. Similarly, even if the design color of the label 13 changes, if the color of the photoelectric tube mark 20 is determined to be a specific color, there is no need to re-adjust the setting of the label long-body inspection device. In addition, if the position in the width direction of the long label 10 of the photoelectric tube mark 20 is read by the image sensor 5, the circumferential displacement of the folding position (both side edges when folded flat) is simultaneously inspected. You can also.

  Further, if the shape of the end portion in the longitudinal direction of the photoelectric tube mark 20 is changed according to the type of the label 13, the mark sensor 3 also has an influence when detecting the photoelectric tube mark 20 as a reference of the cutting position C. It is difficult to prevent the detection accuracy of the mark sensor 3 from deteriorating even if the photoelectric tube mark 20 is used as a label identifier.

  Moreover, since only the shape of the end portion in the longitudinal direction of the photoelectric tube mark 20 is changed, it is not necessary to give the viewer a sense of incongruity.

  In addition, although the mark sensor 3 and the image sensor 5 are provided separately, it is good also as a structure which combines both. That is, the image sensor 5 may also serve as the mark sensor 3, and the cutting position may be controlled from the read image data of the photoelectric tube mark 20.

  However, various label identifiers other than the photoelectric tube mark 20 can be used, and the design of the label 13 or a part of the characters may be used as the label identifier. For example, in the case where the non-display area 12 that is a clear area exists at both upper and lower ends of the label 13, the label is attached to the edge of the display area 11 that is a boundary with the non-display area 12 as shown in FIG. For example, a recess 21 (a portion where printing is partially removed) may be provided as an identifier, and the shape of the recess 21 may be changed for each type of label 13. Further, the number of the recesses 21 may be changed according to the type of the label 13 instead of the shape of the recess 21 or together with the shape of the recess 21. Of course, it is good also as shapes other than the recessed part 21. FIG. Furthermore, instead of the edge of the display area 11 of the label 13, as shown in FIG. 6B, a label identifier 22 made of a figure or a character may be provided near the center of the display area 11 of the label 13, for example. Good. The label identifier 22 can be provided by printing, or can be provided by partially removing printing. Further, in the case of FIG. 6B, a configuration without the non-display area 12 (continuous solid printing) may be used. Thus, the photoelectric tube mark 20 is not essential as a reference for the cutting position. Even if the photoelectric tube mark 20 is not provided as a reference for the cutting position, for example, the boundary between clear (non-display area) and white solid (display area) is used as the reference for the cutting position, or a part of the design, that is, the clear portion And the boundary between the print portion and the print portion can be used as a reference for the cutting position. However, by providing the phototube mark 20, it is possible to control the cutting position more accurately without any design restrictions. For example, when the overall design is clear and the boundary is difficult to understand, or when the front and back designs overlap in the case of a flat tube, the design is a combination of multiple colors. In the case where the boundary is difficult to understand, the phototube mark 20 can be provided to accurately control the cutting position.

  The long label body 10 does not have to be cylindrical as described above, and may have a single flat structure having a predetermined width.

  Further, the base film of the label may not be a transparent plastic film, but may be a colored film (for example, a milk white film). In this case, a printing layer and a label identifier are formed on the surface of the film. Further, the base film of the label may or may not have heat shrinkability.

  Furthermore, instead of the jointed metal tape, for example, a colored tape having light reflectance and color that can be easily distinguished from the long label body may be used. In this case, detection can be easily performed using a photoelectric sensor having a function of discriminating between a reflection type, a transmission type, and a color as a joint detection unit.

  Further, the label may not have a design, and characters may be printed on a transparent film, for example, in one point. For example, when round batteries have the same shape and size but have different capacities, only the letters indicating the capacities are displayed on the cylindrical transparent film that covers them. These are labels in the present invention and can be applied to them, and by providing various label identifiers there, the difference can be easily discriminated. In addition to various types of batteries, the present invention can also be applied to labels made of transparent films that cover electronic parts such as capacitors.

1 Control device (discriminating means)
2 Memory 3 Mark sensor 4 Metal sensor (joint detection means)
5 Image sensor (identifier reading means)
6 Alarm device 10 Label long body 11 Display area 12 Non-display area 13 Label 13a Upper end part 13b Lower end part 14 Center seal part 15 One side end part 16 The other side end part 17 Overlapping part 20 Photoelectric tube mark (label identifier)
21 Recessed part (label identifier)
22 Label identifier A Label transport direction C Cutting position L Total length of label

Claims (4)

A seam detecting means for detecting a seam where the long label bodies are joined together;
An identifier reading means for reading the label identifier provided on each label of the long label body to identify the type of label, at least before and after the joint;
A label long-body inspection apparatus comprising: a discriminating unit that discriminates the difference between label identifiers before and after a joint.   The label identifier is a photoelectric tube mark serving as a reference for the cutting position, and the shape of the photoelectric tube mark varies depending on the type of label, and the identifier reading means is an image sensor for reading the shape of the photoelectric tube mark. Label long body inspection device.   3. The label long-body inspection according to claim 2, wherein the photoelectric tube mark has a long shape along the width direction of the long-length label, and the shape of the end in the longitudinal direction of the photoelectric tube mark varies depending on the type of the label. apparatus.   In order to identify the type of label, a label identifier is formed in advance on each label of the long label body, and the label identifiers before and after the joint where the long label bodies are joined together are determined. A label long-body inspection method characterized by inspecting for a joining error.

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