JP2013119420A - Label peeling device and label peeling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label peeling device and a label peeling method capable of stabilizing the peeling performance of a label piece 12 even for a label-continued body 2 with the relatively thin label pieces 12 of low rigidity temporarily attached to a mount 11.SOLUTION: The transfer of the label-continued body 2 is temporarily stopped before the label piece 12 peeled from the mount 11 reaches a peeling label sensor 19 in a label peeling board 15. Following the transfer of the label-continued body 2 by a predetermined set transfer distance D, the mount 11 starts to turn in the label peeling board 15, and before the label leading end 12A of the label piece 12 starting to peel from the label peeling board 15 is detected by a peeling label sensor 19, the transfer of the label-continued body 2 is once stopped, and after the lapse of a predetermined set stopping time, the mount 11 of the label-continued body 2 is transferred again beyond the label peeling board 15.

Description

The present invention relates to a label peeling apparatus and a label peeling method, and more particularly to a label peeling apparatus and a label peeling method that can reliably peel off a label piece that is thin and difficult to peel because it is so thin. .

Conventionally, a label stripping device that transports a label continuous body in which a plurality of label pieces are temporarily attached to a belt-like mount along a label transfer path, and peels off the label pieces from the mount by turning only the mount on the label stripping plate. It has been known. This label piece is printed in advance as information to be displayed as fixed information, or is printed on variable information as necessary, and then attached to a predetermined article.
As the material of the above-mentioned label pieces, there are general paper materials, name paper, PET base materials, and other synthetic resin materials. There are various problems such as being difficult to stabilize the peeling performance.

Furthermore, when manufacturing such a continuous label body, the label substrate is cut in the thickness direction by pressing the cutting blade from the surface side of the label substrate laminated on the mount (however, the mount is cut) In the process of forming the label piece, if the label piece is thin, the adjustment of the pressing depth (cut depth) of the cutting blade is very delicate, requiring labor and skill. there were.
In addition, it is difficult to avoid the tip of the cutting blade from slightly biting in the thickness direction from the surface of the mount, and the label from the mount because the adhesive on the back side of the label substrate bites into the mount together with the cutting blade. There is a problem that it is difficult to separate the pieces.
Usually, due to the rigidity of the material of the label piece, the label piece is peeled off from the mount as the mount turns, but as described above, when the label piece is thin, its rigidity is limited, There is a problem that it is difficult to stabilize the peeling operation.

Especially for wide label strips, the timing of peeling off from the mount differs depending on the position in the width direction. Therefore, a peelable label sensor (generally an optical sensor) that determines (detects) whether the label strip has been peeled off from the mount. There is a problem that the detection of the label piece due to is uncertain and stable peeling operation is difficult.
In addition, as described above, the continuous label having a non-uniform cut depth does not stabilize the peeling operation, and even after the peeled label sensor detects the peeled label piece once and stops the transfer of the label piece. Since the peeled state of the label piece changes (that is, the label piece sticks again in the direction of the mount), there is a problem of causing false detection.

JP 2007-197036 A

    The present invention has been considered in view of the above-mentioned problems, and even with a continuous label body in which a label piece having a relatively thin thickness and low rigidity is temporarily attached to a mount, the peeling performance of the label piece is stabilized. An object is to provide a possible label peeling apparatus and a label peeling method.

    Another object of the present invention is to provide a label peeling apparatus and a label peeling method capable of reliably peeling a label piece from the mount even if the backing sheet and the label piece are temporarily attached in a state in which they are hardly peeled off by an adhesive. To do.

    Moreover, this invention makes it a subject to provide the label peeling apparatus and label peeling method which can avoid the misdetection by a peeling label sensor, and can stabilize the detection of a label piece.

    That is, the present invention pays attention to temporarily stopping the transfer of the label continuous body before the label piece peeled from the backing sheet on the label peeling plate reaches the peeled label sensor. A transfer unit for transferring a label continuous body in which a plurality of label pieces are temporarily attached to the mount along the label transfer path, and a turning unit for turning only the mount on the label peeling plate and peeling the label pieces from the mount. And a peeling label detection unit having a peeling label sensor capable of detecting the label piece peeled on the label peeling plate of the turning part, and receiving a detection signal of the peeling label sensor And a control unit for controlling the transfer unit. The control unit is adapted to transfer the label continuous body by a predetermined set transfer distance by the transfer unit. In the label peeling plate, the mounting of the label continuum is stopped once before the mount starts to turn and the leading edge of the label piece that has started to peel from the label peeling plate is detected by the peeling label sensor. The label peeling apparatus is characterized in that, after a predetermined set stop time, the transfer unit is controlled again so as to transfer the mount of the label continuous body over the label peeling plate.

    According to a second aspect of the present invention, a label continuous body in which a plurality of label pieces are temporarily attached to a belt-like mount is transferred along a label transfer path, and only the mount is turned on a label peeling plate so that the label pieces are transferred to the mount. A peelable label peeling method comprising a transfer part for transferring the continuous label body along the label transfer path, and a peelable label sensor capable of detecting the label piece peeled off at the label peeling plate A detection unit and a control unit that receives a detection signal of the peeling label sensor and controls the transfer unit, and transfers the label continuous body by a predetermined set transfer distance by the transfer unit; The label tip of the label piece that started to turn the mount on the release plate and started to peel from the label release plate is the release label sensor. The control of the label continuum is stopped once before the detection, and after the predetermined set stop time, the label continuum is transferred again over the label peeling plate. The label peeling method is characterized in that the section controls the transfer section.

    After the peeling state of the label tip portion of the label piece on the label peeling plate is stabilized, the transfer unit further turns the mount on the label peeling plate, and removes the peeled label piece to the peeling label sensor. Can be transported in the direction of

    After the set stop time has elapsed, the control unit can transfer the label continuum by the set transfer distance and turn the mount on the label peeling plate.

    In the label peeling plate, the control unit is configured to start the peeling of the label tip of the label piece from the mount until the label leading edge reaches the front of the peeling label sensor. The transfer and stop of the continuum can be repeated a predetermined set number of times.

    The control unit is configured such that a transfer distance in which the label continuous body is transferred by turning the turning tip of the label peeling plate by the transfer unit exceeds a distance between the label peeling plate and the peeling label sensor. When error processing can be performed.

    The control unit performs error processing when a transfer distance in which the label continuous body is transferred by turning the turning tip of the label peeling plate by the transfer unit exceeds a pitch length of the label piece. Can do.

    It is possible to have an operation unit capable of setting the set stop time, the set transfer distance, and the set number of repetitions.

    In the label peeling apparatus and the label peeling method according to the present invention, when the label strip is peeled off by turning the mount of the label continuum at the label peeling plate portion, transfer within a predetermined set transfer distance and within a predetermined set stop time. Since this control operation is repeated as necessary, even when the label piece is thin, it can be slowly peeled off from the mount within the set stop time due to its rigidity. Thus, even a label piece that has been difficult to peel off can be peeled off from the mount more reliably and stably.

    In particular, according to the label peeling device of the first invention, the control unit peels off the label peeling plate from the label peeling plate as the backing sheet begins to turn on the label peeling plate due to the transfer of the label continuous body by the transfer unit for a predetermined set transfer distance. Before the leading edge of the label piece started is detected by the peel label sensor, the transport of the label continuous body is stopped once, and after a predetermined set stop time, the label continuous body is again past the label peeler plate. Therefore, the ability to peel the label piece from the mount can be stabilized.

In particular, according to the label peeling method of the second invention, the label continuum is transferred by the transfer unit by a predetermined set transfer distance, the label peeling plate begins to turn the mount, and the label piece that has started to peel from the label peeling plate is removed. Before the leading edge of the label is detected by the peeling label sensor, stop the transfer of the label continuum, and after a predetermined set stop time, transfer the label continuum over the label peeling plate again. Since it controls, the label front-end | tip part of a label piece will peel from a label peeling board little by little over time, and even if it is a thin label piece, it can peel reliably from a base_sheet | mounting_paper.

It is a schematic side view of the label peeling apparatus 1 by the Example of this invention. FIG. 3 is an enlarged side view of a main part of the turning unit 5. FIG. 6 is a flowchart of an operation for peeling the label piece 12 from the mount 11 of the label continuum 2.

    In the present invention, since the label strip is peeled off by transferring and stopping the label continuum on the label peeling plate, a label peeling device and a label peeling method capable of stabilizing and ensuring the peeling have been realized. .

Next, a label peeling apparatus 1 and a label peeling method according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic side view of a label peeling apparatus 1, which includes a supply unit 3 for a strip-shaped continuous label body 2, a label position detection unit 4, a turning unit 5, and a transfer unit 6. The peeling label detection unit 7, the operation unit 8, the control unit 9, and the label transfer path 10 from the supply unit 3 to the transfer unit 6 and further to the release label detection unit 7.

    The label continuum 2 has a strip-shaped mount 11 and a plurality of label pieces 12 temporarily attached to the front side of the mount 11, and a position detection mark 13 is printed on the back side of the mount 11 in advance. .

    The supply unit 3 can hold the label continuous body 2 in a roll shape and feed the label continuous body 2 in a strip shape along the label transfer path 10.

    The label position detection unit 4 includes, for example, an optical label position detection sensor 14, detects a position detection mark 13 on the back surface of the label continuous body 2, and detects the label continuous body 2 (label piece) in the label transfer path 10. The detection signal regarding the position of 12) is output to the control unit 9.

FIG. 2 is an enlarged side view of a main part of the turning portion 5, and the turning portion 5 has a label peeling plate 15 and a label pressing plate 16, and the label is continuous at the turning tip portion 15 </ b> A of the label peeling plate 15. Only the mount 11 of the body 2 is turned so that the label piece 12 can be peeled from the mount 11.
The label pressing plate 16 presses the label continuum 2 toward the label peeling plate 15 so as to promote the turning of the mount 11 and the peeling of the label pieces 12 at the turning tip 15A.

    The transfer unit 6 transfers the label continuous body 2 along the label transfer path 10 and is driven by a mount winding shaft 17 and a stepping motor that rotationally drives the mount winding shaft 17 on the downstream side of the turning unit 5. And a motor 18.

    The peel label detection unit 7 includes, for example, an optical peel label sensor 19, detects the label piece 12 peeled from the label continuum 2 in the turning unit 5, and outputs a detection signal to the control unit 9.

    The operation unit 8 can input data necessary for the peeling of the label piece 12, and can set various settings such as a set transfer distance D (described later, FIG. 2), a set stop time, and a set number of repetitions. An operation key 20 and a display 21 are provided.

    The control unit 9 receives respective detection signals from the label position detection sensor 14 and the peeling label sensor 19, and can control the label position detection sensor 14, the drive motor 18, the peeling label sensor 19 and the operation unit 8 described above. Then, peeling control of the label piece 12 is performed.

The label stripping operation of the label stripping apparatus 1 having such a configuration will be described below with reference to FIG.
FIG. 3 is a flowchart of an operation of peeling the label piece 12 from the mount 11 of the label continuous body 2, and the label leading end 12 A of the label piece 12 of the label continuous body 2 is changed to the turning tip 15 A of the label peeling plate 15. In step S1, the label continuum 2 is transferred by a set transfer distance D (see FIG. 2).

The set transfer distance D is at least shorter than the distance between the turning tip 15A of the label peeling plate 15 and the peeling label sensor 19, or at least shorter than the pitch length of the label pieces 12. The distance obtained by dividing these distances is adopted.
The set transfer distance D and the number of divisions can be arbitrarily selected, but the material (rigidity) of the label piece 12, the adhesive on the back side of the label piece 12, and the type of release agent on the front side of the mount 11, Select a desired value from the pitch length of the label piece 12 and the like.
In addition, about the space | interval between the turning front-end | tip part 15A of the label peeling plate 15, and the peeling label sensor 19, according to the pitch length of the label piece 12, the position of the peeling label sensor 19 can be adjusted mechanically.

The control unit 9 moves the label strip 12 that has started to be peeled off from the label peeling plate 15 as the mount 11 starts to turn on the label peeling plate 15 with the transfer of the label continuous body 2 by a predetermined set transfer distance D by the transfer unit 6. Before the label leading end 12A is detected by the peeling label sensor 19, the transfer of the label continuous body 2 is once stopped (step S2).
In the next step S3, after determining whether or not a predetermined set stop time has elapsed, the transfer unit 6 is controlled so as to transfer the mount 11 of the label continuous body 2 over the label peeling plate 15 again.
That is, after the set stop time has elapsed, the control unit 9 confirms the number of set repetitions in step S4, returns to step S1, and again transfers the label continuous body 2 by the set transfer distance D to label the mount 11 Turning is performed on the peeling plate 15.

This set stop time is a time that can ensure a time margin for peeling from the mount 11 even for the relatively thin label piece 12. Desirable numerical values are selected from the material (rigidity), the type of adhesive and release agent, the pitch length, and the like.
The set transfer distance D is, for example, about 1 mm when the interval between the turning tip 15A of the label peeling plate 15 and the peeling label sensor 19 is 5 mm (or the pitch length of the label pieces 12 is 5 mm), for example. And
The set stop time is, for example, about 1/4 to 1/2 second.

In step S3, it is determined whether the set stop time has elapsed. After the set stop time has elapsed as described above, in step S4, it is determined whether the processes from step S1 to step S3 have been repeated a predetermined set number of times. To do.
That is, by repeating the processing from step S1 to step S3 a plurality of times (a predetermined set number of repetitions), the peeling of the label piece 12 from the mount 11 can be further ensured.
In short, after the state of peeling of the label leading end 12A of the label piece 12 on the label peeling plate 15 is stabilized, the transfer unit 6 further turns the mount 11 on the label peeling plate 15 to move the peeled label piece 12 to the peeling label sensor. It will be transferred in the direction of 19.
Further, the control unit 9 starts the label strip 12 on the label peeling plate 15 from the time when the label leading edge 12A starts to peel from the mount 11 until the label leading edge 12A reaches the site of the peeled label sensor 19. Repeat step 2 and stop.

    The operation unit 8 uses the operation keys 20 and the display 21 to set the set stop time, the set transfer distance D, and the set repeat count in advance.

Furthermore, in step S5, the label continuous body 2 is further transferred.
The transfer operation of the label continuum 2 in this step S5 may be performed multiple times with the set transfer distance D as a basic unit, and is a simple and continuous transfer operation regardless of the set transfer distance D. It doesn't matter.
For example, when the interval between the turning tip 15A of the label peeling plate 15 and the peeling label sensor 19 is 5 mm, for example, and 1 mm is selected as the set transfer distance D, the set number of transfer and stop repetitions is 3 times. An operation of continuously transferring the remaining distance of 2 mm may be possible (assuming that the total transfer distance is 3 mm).

    Next, in step S6, it is determined whether or not the label piece 12 has been transferred by a pitch length (for example, 5 mm) or more, or a multiple (for example, 1.5 times).

    In step S6, if the sheet has not yet been transferred by 1.5 times, in step S7, the label leading end 12A of the label piece 12 is at the position of the release label sensor 19, that is, the release label sensor 19 is moved to the label piece 12 ( It is determined whether the label leading end 12A) is detected, and if not detected, the process returns to step S5 to continue the transfer of the further label continuum 2.

If the label piece 12 is peeled off normally, it cannot be transferred by a length of 1.5 times the pitch length. If it is determined in step S6 that the label piece 12 has been transferred by 1.5 times, In step S8, error processing is performed.
That is, when the total transfer distance exceeds the distance between the turning tip 15A of the label peeling plate 15 and the peeling label sensor 19, the control unit 9 does not peel the label piece 12 from the mount 11 properly. For example, error processing such as error display on the display 21 in the operation unit 8 or generation of an error warning sound is performed.

If the peeling label sensor 19 detects the label piece 12 in step S7, it is determined whether or not the label piece 12 is removed from the label peeling plate 15 in step S9, and if it is removed, the next peeling step is continued. Or wait for an instruction for the next peeling operation by operating the key 20 in the operation unit 8.
Note that when the peeled label piece 12 is transferred to the peeled label sensor 19, the control unit 9 stops the transfer of the label continuous body 2 until the label piece 12 is removed from the mount 11. .

Thus, as the label continuous body 2 is transported by the predetermined set transport distance D by the transport unit 6, the label 11 of the label piece 12 that has started to turn on the mount 11 on the label stripping plate 15 and begins to strip from the label stripping plate 15. Before the leading end 12A is detected by the peeling label sensor 19, the transfer of the label continuous body 2 is once stopped, and after a predetermined set stop time, the mount 11 of the label continuous body 2 is again passed over the label peeling plate 15. If necessary, the control unit 9 controls to repeat the transfer and stop operations, so that even if the label piece 12 is relatively thin or has a low rigidity. , It can be reliably and stably peeled off from the mount 11.

1 Label peeling device (Example, FIG. 1)
2 Label continuum 3 Supply unit 4 Label position detection unit 5 Turning unit 6 Transfer unit 7 Peeling label detection unit 8 Operation unit 9 Control unit 10 Label transfer path 11 Band-shaped mount 12 Label piece 12A Label tip 13 position of label piece 12 Detection mark 14 Label position detection sensor 15 Label peeling plate 15A Turning tip of label peeling plate 15 (FIG. 2)
16 Label holding plate 17 Mount winding shaft 18 Drive motor 19 Peeling label sensor 20 Operation key 21 Display D Set transfer distance (FIG. 2)

Claims (8)

A transfer unit for transferring a label continuous body in which a plurality of label pieces are temporarily attached to a belt-like mount along a label transfer path;
A label peeling device having a turning section for turning only the mount on the label peeling plate and peeling the label piece from the mount,
A peeling label detection unit having a peeling label sensor capable of detecting the label piece peeled off at the label peeling plate of the turning part;
A control unit that receives the detection signal of the peeling label sensor and controls the transfer unit, and
The controller is
As the mount of the label continuum is transferred by the transfer unit by a predetermined set transfer distance, the mount of the label begins to turn on the label peeling plate, and the leading end of the label piece that has started to peel from the label peeling plate is peeled off. Stop the transfer of the label continuum once before it is detected by the label sensor,
The label peeling apparatus, wherein the transfer unit is controlled to transfer the mount of the label continuum again over the label peeling plate after a predetermined set stop time. The transfer unit is
After the peeling state of the label tip of the label piece on the label peeling plate is stabilized, the mount is further turned on the label peeling plate, and the peeled label piece is transferred in the direction of the peeling label sensor. The label peeling apparatus according to claim 1. The controller is
The label peeling apparatus according to claim 1 or 2, wherein after the set stop time has elapsed, the label continuous body is transferred by the set transfer distance and the mount is turned on the label peeling plate. The controller is
In the label peeling plate, after the label leading edge of the label piece starts to peel from the mount, the label continuous body is transferred and passed between the label leading edge and a part of the peeling label sensor. The label peeling apparatus according to any one of claims 1 to 3, wherein the stop is repeated a predetermined set number of repetitions. The controller is
When the transfer distance in which the label continuous body is transferred by turning the turning tip of the label peeling plate by the transfer unit exceeds the distance between the label peeling plate and the peeling label sensor, error processing is performed. The label peeling apparatus according to claim 1, wherein the label peeling apparatus is performed. The controller is
The error processing is performed when a transfer distance in which the label continuous body is transferred by turning the turning tip of the label peeling plate by the transfer unit exceeds a pitch length of the label pieces. Item 5. The label peeling device according to any one of Items 1 to 4. The label peeling apparatus according to claim 4, further comprising an operation unit capable of setting the set stop time, the set transfer distance, and the set number of repetitions. A label peeling method in which a continuous label body in which a plurality of label pieces are temporarily attached to a belt-like mount is transferred along a label transfer path, and only the mount is turned on a label release plate to release the label pieces from the mount. Because
A transfer unit for transferring the label continuum along the label transfer path;
A peeling label detection unit having a peeling label sensor capable of detecting the label piece peeled on the label peeling plate;
A control unit that receives the detection signal of the peeling label sensor and controls the transfer unit; and
By transferring the label continuum by a predetermined set transfer distance by the transfer unit, the label peeling plate starts to turn the mount, and the label leading end of the label piece that has started to peel from the label release plate is Stop the transfer of the label continuum once before it is detected by the peel label sensor,
The label peeling method according to claim 1, wherein the control unit controls the transfer unit so that the mount of the label continuous body is transferred again over the label peeling plate after a predetermined set stop time.

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