JP4417876B2 - Label automatic peeling device - Google Patents

Description

  The present invention relates to an apparatus for automatically peeling a label attached to a paper sheet such as a postcard, a sealed letter, or a card.

  For example, postcards in which confidential information that is not desired to be known to humans, such as account numbers and personal identification numbers, are often mailed in a state where a label is attached to the secret information portion and concealed. Then, the recipient needs to peel off the label from the postcard that has been mailed and check the contents. Usually, the label is peeled off at the recipient, and the processing capacity is as low as about 30 sheets / minute, and the work efficiency is poor.

  In view of this, the present inventors have proposed an automatic label peeling apparatus that can peel a label at high speed from a paper sheet to which the label is attached (see Patent Document 1).

  The automatic label peeling apparatus described in Patent Document 1 includes a postcard holder body that holds the tip of a postcard, and a label holder that holds the tip of a label attached to the postcard. The postcard holder barrel rotates while holding the leading end of the label, and the postcard and the label are separated by rotating the label holder barrel while holding the leading end of the label.

  Further, the label automatic peeling apparatus described in Patent Document 1 includes a postcard detection sensor that detects passage of a postcard and a label detection sensor that detects passage of a label having a color different from that of the postcard.

JP 2000-142918 A

However, only the postcard detection sensor and the label detection sensor described in Patent Document 1 have the following problems to be solved.
(1) The postcard detection sensor and the label detection sensor simply detect the passage of the postcard and the label, so a predetermined distance from the front edge of the postcard to the front edge of the label (the postcard holder body can receive only the postcard) If it does not have a possible interval), the postcard holder body can hold not only the postcard but also the label together, and the label cannot be peeled off.
(2) When characters / pictures, etc., of the same color as the label color are printed on a part of the postcard, when the label detection sensor detects this, the label is attached even though the label is not attached. It is judged that it is done.
(3) If the postcard is transported diagonally, the postcard holder body may perform a peeling operation even though it does not normally hold the postcard. May occur.

Accordingly, in view of the above circumstances, the present invention provides an automatic label peeling apparatus that can accurately detect the presence or absence of a label and the interval between the leading edge of a postcard and the leading edge of the label and perform an appropriate peeling process. It is intended.
Another object of the present invention is to provide an automatic label peeling apparatus capable of detecting whether or not the postcard holder body normally holds a postcard and preventing machine stoppage due to defective peeling processing or damage to the postcard. To do.

The label automatic peeling apparatus of the present invention, which was made to solve the above problems,
A paper sheet holding member that holds the leading edge of the paper sheets that are sequentially conveyed, and a paper sheet holding body that holds and rotates the paper sheets;
A label holding member for holding and rotating the label holding member for holding the leading end portion of the label held on the rotating paper sheet held and rotated by the paper sheet holding drum; and Have
The label is automatically peeled from the paper sheet by rotating the paper sheet gripping body and the label gripping body with the leading edge of the paper sheet and the leading edge of the label being held separately. In the automatic label peeling device
A paper sheet recognition sensor, a label recognition sensor disposed at a predetermined distance upstream from the paper sheet recognition sensor, and a line sensor disposed downstream of the paper sheet recognition sensor,
The paper sheet recognition sensor and the label recognition sensor detect the distance from the leading edge of the paper sheet to the leading edge of the label,
The paper sheet recognition sensor and the line sensor detect at least the presence or absence of label sticking,
Based on these detection results, the label peeling operation by the paper sheet gripping cylinder part and the label gripping cylinder part is controlled.
Further, the label recognition sensor is a color sensor.
The label includes a fluorescent material, and the label recognition sensor is a fluorescent sensor.
In addition, a catch sensor for detecting whether or not the paper sheet holding member is holding a paper sheet is provided in the vicinity of the paper sheet holding member.

  According to the automatic label peeling apparatus of the present invention, the paper sheet gripping body is only a paper sheet by detecting the distance from the front edge of the paper sheet to the front edge of the label by the paper sheet recognition sensor and the label recognition sensor. It is possible to detect whether or not the label can be received, and it is possible to accurately detect the presence or absence of label sticking by the paper sheet recognition sensor and the line sensor. It can be carried out.

  Also, because the label recognition sensor is a color sensor, peeling operation is performed for labels with different specifications, for example, labels that have strong adhesive strength and may damage the printed part of paper sheets when peeled at high speed. By controlling so as not to perform the operation, it is possible to prevent the machine from being stopped or the paper sheet from being damaged due to defective peeling processing.

  Further, when the label includes a fluorescent material and the label recognition sensor is a fluorescent sensor, it is possible to deal with a plurality of types of labels having different colors, and the versatility is high.

  Further, by providing a catch sensor for detecting whether or not the paper sheet holding member is holding the paper sheet, for example, when the paper sheet is conveyed obliquely, the paper sheet gripping cylinder It is possible to control so that the peeling operation is not performed when the unit cannot normally hold the paper sheet, and it is possible to prevent the machine from being stopped or the paper sheet from being damaged due to a bad peeling process.

The label automatic peeling apparatus of the present invention has, as its basic configuration,
A paper sheet holding member that holds the leading edge of the paper sheets that are sequentially conveyed, and a paper sheet holding body that holds and rotates the paper sheets;
A label holding member for holding and rotating the label holding member for holding the leading end portion of the label held on the rotating paper sheet held by the paper holding barrel unit; ing.

  As said basic structure of the label automatic peeling apparatus of this invention, the structure as shown in FIG. 1 similar to the label automatic peeling apparatus disclosed by patent document 1, for example can be employ | adopted suitably.

  In FIG. 1, 11 is a postcard supply unit, 12 is a postcard to which a label is attached, 13 is a transport unit, 14 is a sensor unit, 15 is a postcard barrel (paper leaf barrel), and 16 is a label. A gripping body portion, 17 is a sorting and collecting mechanism, and 18 is a label winding portion.

  The outline of this automatic label peeling apparatus will be briefly described with reference to FIG. 1. First, the postcard supply unit 11 stores postcards 12 in a stacked state with the label-attached side facing up. The transport unit 13 takes out the postcards 12 one by one from the postcard supply unit 11 at a predetermined interval, and transports the postcards 12 to the postcard holder body unit 15. The postcard gripping body 15 rotates in the clockwise direction in the drawing after gripping the leading end (front edge) of the postcard 12 based on the signal from the sensor unit 14. Based on the signal from the sensor unit 14, the label gripping body 16 grips the leading end of the label attached to the postcard held by the postcard gripping body 15, and then rotates counterclockwise in the figure. To do.

  As described above, the postcard holder body 15 rotates while holding the leading end of the postcard, and the postcard and the label 16 are separated by rotating the label holding body 16 while holding the leading end of the label. Is done. The separated label is transported from the label gripping body 16 to the label winder 18 and finally wound on a label winder holder or the like.

  The greatest feature of the automatic label peeling apparatus of the present invention resides in the configuration of the sensor unit 14.

  An automatic label peeling apparatus according to the present invention includes at least a paper sheet recognition sensor, a label recognition sensor disposed at a predetermined distance upstream from the paper sheet recognition sensor, and a downstream of the paper sheet recognition sensor. A line sensor disposed on the side, and preferably further includes a catch sensor for detecting whether or not the paper sheet holding member holds the paper sheet.

  Each of the sensors according to an embodiment of the present invention will be described with reference to FIGS. 2 is a layout diagram of a paper sheet (postcard) recognition sensor and a label recognition sensor, FIG. 3 is a layout diagram of a line sensor, FIG. 4 is a layout diagram of a catch sensor, (a) is a top view, and (b). Is a side view. FIG. 5 is a top view showing the arrangement of all sensors.

  First, the postcard recognition sensor and the label recognition sensor will be described with reference to FIG. In FIG. 2, 12 is a postcard, 15 is a postcard holder body, 21 is a label, 22 is a postcard recognition sensor, 23 is a label recognition sensor, 24 is a sensor support member, and the postcard 12 to which the label 21 is attached is Are sequentially conveyed in the direction of the arrows in the figure.

  The postcard recognition sensor 22 and the label recognition sensor 23 are supported by a sensor support member 24 at a distance L in the transport direction. This distance L is set to the distance from the front edge of the postcard to the front edge of the label where the postcard holder body 15 can hold only the postcard.

  The postcard recognition sensor 22 is not particularly limited as long as it can detect the front end of the postcards sequentially conveyed, and for example, an optical sensor, a color sensor, or the like can be used.

  As the label recognition sensor 23, a color sensor or a fluorescence sensor is used.

  When a color sensor is used as the label recognition sensor 23, it is turned on when a specific color is detected, and remains in an off state when a label with different specifications passes.

  When the label contains a fluorescent material, a plurality of types of labels having different colors can be similarly handled by using a fluorescent sensor as the label recognition sensor 23. This fluorescent sensor has a light emitting element that irradiates ultraviolet rays toward the label and a light receiving element that receives fluorescence emitted from the surface of the label by the irradiation of ultraviolet rays, and the label containing the fluorescent material passes therethrough. In this case, the fluorescence is detected and turned on.

  The postcard recognition sensor 22 and the label recognition sensor 23 perform the following detection before the postcard 12 is held and rotated by the postcard holder body 15, and control the label peeling operation.

  If the postcard recognition sensor 22 recognizes the leading edge of the postcard 12 and is in the ON state, if the label recognition sensor 23 is in the ON state, the distance from the postcard leading edge to the label leading edge is insufficient, Judges that it is not possible to receive only postcards. In this case, the label is peeled off by the postcard holder body and the label holder body.

  On the other hand, when the postcard recognition sensor 22 recognizes the front end of the postcard 12 and is in the ON state, if the label recognition sensor 23 is in the OFF state, a sufficient distance from the postcard leading edge to the label leading edge is secured. It is determined that the paper sheet gripping body can handle only paper sheets. In this case, a case where a non-specification label other than a specific color is attached (when a color sensor is used) or a case where a non-specification label not containing a fluorescent material is attached. (When a fluorescent sensor is used) and there are cases where no label is attached, and these determinations are made in consideration of the state of the line sensor 31 shown in FIG.

  The line sensor 31 is disposed on the downstream side of the postcard recognition sensor 22 and detects the leading edge of the label using a strip-shaped laser beam parallel to the postcard conveyance direction. When the leading edge of the label is detected, the line sensor 31 is turned on. Become. By using the line sensor 31 in this way, even if characters, designs, etc. of the same color as the label are printed on a part of the postcard, the leading edge of the label can be reliably detected.

  If the label recognition sensor 23 is in the ON state when the line sensor 31 is in the ON state, it is determined that the label to be peeled is attached.

  On the other hand, if the label recognition sensor 23 is in the OFF state when the line sensor 31 is in the ON state, a label outside the specification other than the specific color is pasted (when the color sensor is used), or It is determined that a non-specification label that does not contain a fluorescent material is attached (when a fluorescent sensor is used). In this case, the label is peeled off by the postcard holder body and the label holder body.

  If the line sensor 31 does not turn on even after a predetermined time has passed since the postcard recognition sensor 22 is turned on, it is determined that no label is attached.

  As described above, by using the postcard recognition sensor 22, the label recognition sensor 23, and the line sensor 31, the postcard detection sensor and the label detection sensor as described in Patent Document 1 cannot be sufficiently detected. (1) Whether the postcard holder body can hold only a postcard, (2) Whether the attached label is a specific label to be peeled off, (3) Further, label sticking Presence / absence of wearing can be accurately detected.

  Then, by using a color sensor as the label recognition sensor 23, a label having a different color specification, for example, a label having a strong adhesive force and possibly damaging the printed portion of the paper sheet when peeled at a high speed is peeled off. By controlling so as not to perform the operation, it is possible to prevent the machine from being stopped or the paper sheet from being damaged due to a defective peeling process.

  Further, when the label includes a fluorescent material and the label recognition sensor is a fluorescent sensor, it is possible to deal with a plurality of types of labels having different colors, and the versatility is high.

  In the automatic label peeling apparatus of this example, as shown in FIG. 4 (b), the postcard gripping body portion 15 is formed at a predetermined timing from the time when the postcard recognition sensor 22 detects the leading edge of the postcard and is turned on. Grab the tip of the postcard. The configuration and operation of the postcard holder body 15 will be described below.

  The postcard holder body 15 mainly includes a wheel (body part) 101, an arm 102, a cam 103, a cam follower 104, postcard (paper sheets) holding members 106a and 106b, and a stopper 107.

  The wheel 101 is rotated in the clockwise direction in the figure, and an arm 102 is supported on a support shaft 105 provided on the wheel 101. A cam follower 104 is provided at the end of the arm 102, and the cam follower 104 performs a swinging motion following the cam 103 as the wheel 101 rotates.

  Along with this swinging motion, the postcard holding member 106 a connected to the arm 102 holds and releases the postcard 12.

  That is, when the cam follower 104 moves from the peak portion to the valley portion of the cam 103, the nail-like postcard holding member 106 a is drawn toward the postcard holding member 106 b and holds the postcard 12. Two postcard holding members 106 a are provided to hold the leading end of the postcard 12. The stopper 107 is positioned between the two postcard holding members 106 a and receives the central portion of the front end of the postcard 12.

  On the other hand, when the cam follower 104 rides from the valley portion to the mountain portion of the cam 103, the postcard holding member 106a is separated from the postcard holding member 106b and opens the postcard 12. FIG. 2B and FIG. 3B show an open state in which the cam follower 104 rides on the peak portion of the cam 103 and the tip portion of the postcard holding member 106a is separated from the postcard holding member 106b. FIG. 4B shows a state in which the cam follower 104 has moved from the peak portion of the cam 103 to the valley portion, the postcard holding member 106 a is drawn toward the postcard holding member 106 b side, and the postcard 12 is held.

  A guide member (not shown) is provided obliquely in front of the wheel 101 at a position slightly away from the wheel 101. This guide member is a curved member along the shape of the wheel 101, and one guide member is provided at the center portion in the width direction of the postcard 12. By providing such a guide member close to the wheel 101, the postcard is curved by the guide member as the wheel 101 rotates, and the leading end of the label attached to the postcard is slightly lifted. The label leading end portion can be securely held by the label holding member of the label holding barrel portion having the same configuration as the postcard holder barrel portion.

  The catch sensor 41 is disposed in the vicinity of the two postcard holding members 106a of the postcard gripping body portion 15, and the cam follower 104 moves from the peak portion of the cam 103 to the valley portion as shown in FIG. At this timing, it is detected whether or not the postcard holding members 106a and 106b normally hold the postcard. In this example, this timing is measured using an auxiliary sensor 42 provided separately. That is, the timing at which the auxiliary sensor 42 detects the boundary point P shown in FIG. 4B and the timing at which the cam follower 104 moves from the peak portion to the valley portion of the cam 103 are designed to be the same. .

  The detection method by the catch sensor 41 will be described below with reference to FIG. FIG. 6 is a schematic top view around the postcard holding members 106a and 106b.

  The catch sensor 41 detects reflected light from the shaded portion S in FIG. 6A, and the shaded portion S of the postcard holding member 106b is painted black.

  As shown in FIG. 6B, when the postcard holding members 106a and 106b normally hold the postcard 12, the catch sensor 41 detects the reflected light from the postcard 12 and is turned on. Perform peeling operation.

  On the other hand, for example, when the postcard is transported obliquely and the postcard holding members 106a and 106b do not normally hold the postcard 12 as shown in FIG. 6C, the catch sensor 41 detects the black portion of the postcard holding member 106b. The reflected light from S is detected to be in the OFF state, and the label peeling operation is not performed.

  Thus, by providing a catch sensor that detects whether or not the postcard holding member normally holds the postcard, the peeling operation is performed when the postcard holding member cannot be normally held as shown in FIG. This can be controlled so as not to be performed, and it is possible to prevent machine stoppage and postcard damage due to defective peeling processing.

  As shown in FIG. 7, a hole 71 is provided at the tip of the nail-like postcard holding member 106a, and the black portion S is formed in a portion corresponding to the hole 71 of the postcard holding member 106b. If the reflected light is detected by the catch sensor 41, the detection by the catch sensor 41 can be performed more accurately.

  In the label automatic peeling apparatus of the present invention, based on the detection results of the sensors described above, the label peeling operation is controlled by the paper sheet (postcard) holding body and the label holding body, and the peeling operation is performed. A postcard (or a postcard that is not originally labeled) and a postcard that has not been peeled off can be separately collected by the sorting and collecting mechanism 17 shown in FIG.

It is the schematic which shows one structural example of the label automatic peeling apparatus of this invention. FIG. 2 is a layout view of a paper sheet (postcard) recognition sensor and a label recognition sensor in an automatic label peeling apparatus according to an embodiment of the present invention, where (a) is a top view and (b) is a side view. It is an arrangement view of a line sensor in a label automatic peeling device concerning one example of the present invention, (a) is a top view and (b) is a side view. It is an arrangement plan of a catch sensor in a label automatic peeling device concerning one example of the present invention, (a) is a top view and (b) is a side view. It is a top view which shows arrangement | positioning of each sensor in the label automatic peeling apparatus which concerns on the example of 1 embodiment of this invention. It is explanatory drawing of the detection method by a catch sensor. It is explanatory drawing of the detection method by a catch sensor.

Explanation of symbols

11: Postcard supply section 12: Postcard with label attached 13: Conveying section 14: Sensor unit 15: Postcard holder body (paper sheet holder body)
16: Label holder body,
17: Sorting and collecting mechanism 18: Label winding unit 21: Label 22: Postcard recognition sensor 23: Label recognition sensor 24: Sensor support member 31: Line sensor 41: Catch sensor 42: Auxiliary sensor 71: Hole 101: Wheel (body) )
102: Arm 103: Cam 104: Cam follower 105: Support shafts 106a, 106b: Postcard (paper sheets) holding member 107: Stopper

Claims (4)

A paper sheet holding member that holds the leading edge of the paper sheets that are sequentially conveyed, and a paper sheet holding body that holds and rotates the paper sheets;
A label holding member for holding and rotating the label holding member for holding the leading end portion of the label held on the rotating paper sheet held and rotated by the paper sheet holding drum; and Have
The label is automatically peeled from the paper sheet by rotating the paper sheet gripping body and the label gripping body with the leading edge of the paper sheet and the leading edge of the label being held separately. In the automatic label peeling device
A paper sheet recognition sensor, a label recognition sensor disposed at a predetermined distance upstream from the paper sheet recognition sensor, and a line sensor disposed downstream of the paper sheet recognition sensor,
The paper sheet recognition sensor and the label recognition sensor detect the distance from the leading edge of the paper sheet to the leading edge of the label,
The paper sheet recognition sensor and the line sensor detect at least the presence or absence of label sticking,
An automatic label peeling apparatus for controlling a label peeling operation by the paper sheet gripping cylinder part and the label gripping cylinder part based on these detection results.   The label automatic peeling apparatus according to claim 1, wherein the label recognition sensor is a color sensor.   The label automatic peeling apparatus according to claim 1, wherein the label includes a fluorescent material, and the label recognition sensor is a fluorescent sensor.   The catch sensor for detecting whether this paper sheet holding member is holding paper sheets in the vicinity of the said paper sheet holding member is provided in any one of Claim 1 thru | or 3 characterized by the above-mentioned. The label automatic peeling apparatus as described.

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