JP5351567B2 - Labeling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label sticking device capable of preventing a label from being stuck on an object body with its label suction plate on which the label is not positioned correctly. <P>SOLUTION: The label suction plate includes: suction-injection ports which are a plurality of through-holes provided on its suction surface side for sucking the label; a connection port which is provided on the surface opposite to the suction surface for connecting with a vacuum device which is not shown and used for controlling the injection and suction of air; and four sucking position detection sensors which are each referred to as a first to fourth detection sensor, and each disposed near the four corners (outside suction-injection ports 15) of the suction surface. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a label affixing device that adsorbs and holds the surface of a label having an adhesive on the back surface and affixes the label to an adherend.

  2. Description of the Related Art There is known a label sticking device that automatically sticks a label printed with a barcode or the like on a cosmetic box of a product. There are structures of a label sticking device such as a roller sticking type in which pressure is applied with a roller and a sticking jet type in which a label is stuck by suction and jet of air, and the structure varies depending on the application. The suction jet type label sticking device includes a label suction plate that comes into contact with the surface side of the peeled label and sucks by the negative pressure of air.

  The label suction plate is connected to a vacuum device that controls the suction and ejection of air. When the label is transported to the label suction plate, the label is sucked by sucking the air, and the sucked label is attached to the adherend. When sticking, it controls to inject air and stick a label.

In such a suction jet type label sticking device, one sensor is provided at the front end side of the label suction plate in the label transport direction to detect whether or not the label is sucked on the label suction plate. A method of attaching to an adherend is known (Patent Document 1).

However, when only one point of the label tip is detected by the sensor, it is merely detected whether or not the label is adsorbed to the label adsorbing plate, and the label is adsorbed obliquely to the label adsorbing plate. Since this cannot be detected, there is a problem of sticking to a position that is obliquely shifted from the position to be attached to the adherend.
In addition, an adherend having a label affixed at a displaced position is detected by imaging the label affixing surface of the adherend with a CCD camera installed on a conveyor for transferring the adherend, and the label position deviation is detected. The detected adherend is classified on another conveyor, but this type of apparatus is required, which increases the cost.

JP-A-9-104426

  In view of the above points, the present invention provides a label sticking device that can prevent sticking of an adsorbed label that is not positioned at an accurate position with respect to a label adsorbing plate to an adherend. For the purpose.

In order to solve the above problems, the label sticking device of the present invention is a label sticking device that sucks air from a plurality of suction jets arranged on a suction plate and sticks the label to an object to be stuck. Te, label the disposed detectable positions four corners of the previous end and the rear end side of the label by the suction plate, for detecting whether or not the label to the suction plate in position have a suction position detection sensor, wherein the label suction position detection sensor, detects a first and second suction position detection sensor for detecting the vicinity of the corner portions of the rear end side of the label, the vicinity of the corner portions of the front end side of the label And the third and fourth suction position detection sensors are arranged in proximity to the first and second suction position detection sensors in parallel with the label transport direction. Movable in the direction of separation It is characterized in.
Further , the label sticking operation is stopped when all of the first to fourth suction position detection sensors have not detected the label .
In addition, when all of the first to fourth suction position detection sensors have not detected the label, an error is notified.

  By providing a label adsorption position detection sensor that detects whether the label adsorbed on the adsorption plate is in an appropriate position with respect to the adsorption plate, the label is adsorbed at an inappropriate position with respect to the adsorption plate. By detecting and stopping the operation, it is possible to prevent the label adsorbed at a position displaced from the adsorption plate from being attached to the adherend.

It is a schematic side view which shows the structure of the label sticking apparatus concerning the 1st Embodiment of this invention. It is an expanded sectional view of a sticking part. It is the top view seen from the suction hole side of a sticking part. It is explanatory drawing explaining the suction operation of the label in a label adsorption plate. It is a flowchart of the label sticking operation | movement in a label sticking apparatus. It is a top view which shows the structure of the label adsorption | suction board of the label sticking apparatus concerning the 2nd Embodiment of this invention. It is a top view which shows the structure of the label adsorption | suction board of the label sticking apparatus concerning the 3rd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic side view showing a configuration of a label sticking device according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of a sticking part, and FIG. 3 is a suction hole side of the sticking part. It is the top view seen from.

  Referring to FIG. 1, the label sticking apparatus 1 according to the present invention rotatably holds a roll paper 80 in which a continuous label body 83 in which a plurality of labels 82 are temporarily attached to a long mount 81 is wound in a roll shape. Supply section 2, sensor 3 that detects the position of the continuous label body 83 drawn from the supply section 2, and printing section 4 that conveys the continuous label body 83 toward the downstream side and prints on the surface of the label 82. The peeling plate 5 for peeling the printed label 82 from the mount 81, the winding unit 6 for winding only the mount 81 after the label 82 is peeled, and the label peeled by the peeling plate 5 It has the sticking part 7 which sticks 82 to the to-be-adhered body 87 conveyed on the conveyor 86. FIG.

The supply unit 2 includes a supply shaft that holds a paper tube of the roll paper 80 and a guide (not shown) that restricts movement of the roll paper 80 loaded on the supply shaft in the width direction.
The sensor 3 is a reflective sensor that detects a mark (not shown) printed on the mount 81, and receives a light emitting element that emits light toward the mount 81 and light that is emitted from the light emitting element and reflected by the mount 81. It is comprised from the light receiving element which performs. Note that the sensor 3 is a transmission type sensor that is provided with a light emitting element and a light receiving element at opposite positions so as to sandwich the label continuum 83 without providing a mark on the mount 81, and detects by the light transmittance to the label continuum 83. There may be.
The printing unit 4 supplies a thermal head 8 that prints predetermined information by applying heat to the thermosensitive coloring layer provided on the surface of the label 82, and a label continuum 83 that is connected to a motor (not shown) and rotated. The platen roller 9 is configured to convey toward the downstream side where the printing unit 4 is disposed from the upstream side in the conveyance direction of the unit 2.
The peeling plate 5 is a member having an acute-angled tip, and the label 82 is peeled from the mount 81 due to the rigidity of the label 82 by turning the mount 81 toward the take-up unit 6 by the acute angle portion.
The winding unit 6 is connected to a motor (not shown) and is driven to rotate, thereby winding the long mount 81 in a roll shape.
The affixing unit 7 is connected to a vacuum device (not shown) and sucks or jets air, thereby adsorbing or affixing the label 82 peeled off by the peeling plate 5 and the label adsorbing plate 10. A cylinder 11 is provided that allows the label sticking device 1 to move forward and backward (toward the adherend 86 transferred on the conveyor 87).

  Next, the configuration of the label suction plate 10 will be described with reference to FIGS. The label suction plate 10 is provided on a suction injection port 15 which is a plurality of through holes provided on the suction surface 16 side for sucking the label 82 and on the opposite surface of the suction surface 16, and controls the injection and suction of air. The first to fourth suction position detection sensors 18 (18a, 18b, 18c, 18c, 18c, 18c, 18b, 18c, respectively) disposed in the vicinity of the four corners of the suction surface 16 (outside the suction injection port 15). 18d).

  The operation of the label sticking device having the above-described configuration will be described. FIG. 4 is an explanatory view for explaining the label suction operation in the label suction plate, and FIG. 5 is a flowchart of the label sticking operation in the label sticking apparatus. FIG. 4A shows a state where the label peeled from the peeling plate is sucked at an appropriate position with respect to the label suction plate, and FIG. 4B shows the label peeled from the peeling plate against the label suction plate. It shows a state where it is adsorbed at an oblique position.

  In FIG. 5, first, print data sent from a computer (not shown) connected to the label sticking apparatus 1 is received (step S1). When the print data is received, the platen roller 9 and the winding unit 6 are rotationally driven to convey the label continuous body 83 from the supply unit 2 toward the print unit 4. The position of the label is detected by the sensor 3, the heating element of the thermal head 8 is heated at a predetermined timing, and print data is printed on the label 82 (step S2). The label continuum 83 after label printing is pulled by the take-up unit 6 and conveyed, and the label 82 is peeled off from the mount 81 by turning the mount 81 with the release plate 5 (step S3).

  When the label 82 is peeled off, air is sucked under the control of the vacuum device connected through the connection port 17, and the label 82 is sucked onto the suction surface 16 through the suction jet port 15 (step S4). When the suction of the label 82 is completed, it is confirmed whether or not all of the suction position detection sensors 18a to 18d have detected the label 82 sucked on the suction surface 16 (step S5).

  As shown in FIG. 4A, when the label 82 adsorbed on the adsorption surface 16 is detected by the adsorption position detection sensors 18a to 18d, the label 82 is adsorbed at an appropriate position parallel to the adsorption surface 16. The label adsorbing plate 10 is advanced toward the adherend 87 by the cylinder 11, and the adhesive surface of the label 82 adsorbed and held on the adsorbing surface 16 is lightly pressed on the adherend 10 to be pasted ( Step S6). When applying the label, the suction is stopped in the vacuum device, and the label is attached by jetting air.

  4B, when the label 82 sucked on the suction surface 16 is not detected by all the suction position detection sensors 18a to 18d, that is, the suction position detection sensor 18c and the suction position detection sensor 18c in FIG. Since the label 82 cannot be detected in 18d, it is recognized that the label 82 is not sucked at an appropriate position with respect to the suction face 16, and a warning is urged by a buzzer or an alarm display (step S7), and the label sticking operation is not performed. The operation is stopped (step S8). Although FIG. 4B illustrates an example in which the label 82 is inclined with respect to the suction surface 16, the present invention is not limited to this, and slack of the label 82 can also be detected. In addition, the arrow of FIG. 4 has shown the direction in which the label 82 is conveyed.

  As described above, the four suction position detection sensors 18a to 18d provided on the label suction plate 10 are configured to detect the four corners on the front end side and the rear end side of the label 82. By detecting that the label 82 is adsorbed to the label adsorbing plate 10 and stopping the operation, it is possible to prevent the label 82 adsorbed at a position displaced from the label adsorbing plate 10 from being attached to the adherend 87.

Further, the suction position detection sensors 18c and 18d for detecting the leading end of the label 82 can be made movable in the longitudinal direction of the label suction plate (the conveyance direction of the label 82). FIG. 6 is a plan view showing the configuration of the label adsorbing plate of the label sticking device according to the second embodiment of the present invention, and the second embodiment of the present invention will be described.
As shown in FIG. 6, the label suction plate 20 is provided on the suction surface 15 which is a plurality of through holes provided on the suction surface 16 side for attracting the label 82, and on the opposite surface of the suction surface 16, and ejects air. And a connection port 17 connected to a vacuum device (not shown) for controlling suction, and first to fourth four suction position detection sensors 18 arranged near the four corners of the suction surface 16 (outside the suction spray port 15). Have.
The suction position detection sensor 18 detects suction position detection sensors 18c and 18d that detect the vicinity of the corner portion on the leading end side of the label 82 sucked on the suction surface 16, and detects the vicinity of the corner portion on the rear end side in the width direction of the label 82. It consists of suction position detection sensors 18a and 18b. The suction position detection sensors 18c and 18d for detecting the front end side of the label 82 are formed on the label suction plate 20 in a direction parallel to the suction surface 16 toward the suction position detection sensors 18a and 18b for detecting the rear end side of the label 82. The suction position detection sensors 18c and 18d are movable in the proximity and separation directions with respect to the suction position detection sensors 18a and 18b within the range of the movable hole 21. Further, the suction position detection sensors 18c and 18d can be fixed at an arbitrary position of the movable hole 21 by a fixing means (not shown).

  As described above, by moving the suction position detection sensors 18c and 18d that detect the vicinity of the corner portion on the tip end side of the label 82 sucked on the suction surface 16, the length of the label 82 is reduced as shown by the phantom line in FIG. Even if it is changed, it is possible to cope with it simply by adjusting the position of the sensor in accordance with the label length.

Further, the suction position detection sensor 18 does not need to be able to detect all four corners of the label 82, and the suction position detection sensor 18 is within a range in which it can be detected whether or not the label 82 is suctioned in parallel to the suction surface 16. The number and arrangement of can be set at arbitrary positions. FIG. 7 is a plan view showing the configuration of the label suction plate of the label sticking device according to the third embodiment of the present invention, and the third embodiment of the present invention will be described.
As shown in FIG. 7, the label suction plate 30 is provided on the opposite side of the suction surface 16 and the suction spray port 15 that is a plurality of through holes provided on the suction surface 26 side that sucks the label 82, and ejects air. And a connection port 17 connected to a vacuum device (not shown) for controlling suction, and first corners disposed at two corners (outside the suction ejection port 15) on the downstream (tip) side of the suction surface 16 in the label conveying direction. And a second suction position detection sensor 18.
The suction position detection sensor 18 includes suction position detection sensors 18c and 18d that detect the vicinity of the corner portion on the tip end side of the label 82 that is sucked onto the suction surface 16. For example, when wrinkles occur in the label 82, the leading end of the label 82 is not conveyed to the positions of the suction position detection sensors 18c and 18d (without reaching the sensor position), and an error can be notified accordingly. It becomes. Further, even if the label 82 is sucked obliquely with respect to the suction surface 16, it becomes impossible to detect at least one of the suction position detection sensors 18c and 18d, and thus an error can be notified.
In the present embodiment, the suction position detection sensors 18c and 18d that detect the leading end side of the label are used. However, the present invention is not limited to this, and the suction position detection sensors 18a and 18b that detect the rear side of the label or the side surface side of the label are detected. The suction position detection sensors 18a and 18c (18d and 18d) or the suction position detection sensors 18a and 18d (18b and 18c) positioned on the diagonal line of the label suction plate 30 can be combined.

DESCRIPTION OF SYMBOLS 1 Label sticking apparatus 2 Supply part 3 Sensor 4 Printing part 5 Release plate 6 Winding part 7 Sticking part 8 Thermal head 9 Platen roller 10 Label adsorption plate 11 Cylinder 15 Suction injection port 16 Adsorption surface 17 Connection port 18 Adsorption position detection sensor 20 Label suction plate 30 Label suction plate 80 Roll paper 81 Mount 82 Label 83 Label continuous body 86 Conveyor 87 Adhered body

Claims (3)

A label affixing device that adsorbs a label by aspirating air from a plurality of suction injection ports arranged on an adsorption plate and affixes it to an object to be adhered,
Wherein arranged in a position capable of detecting the four corners of the-edge side and the rear side of the label by the suction plate, the label suction position detecting whether the label is in the proper position relative to the suction plate have a detection sensor,
The label suction position detection sensor includes first and second suction position detection sensors that detect the vicinity of the corner on the rear end side of the label, and third and fourth suction that detect the vicinity of the corner on the front end side of the label. With a position detection sensor,
The label sticking device, wherein the third and fourth suction position detection sensors are movable in the approach and separation directions with respect to the first and second suction position detection sensors in parallel with the label transport direction. . The label sticking apparatus according to claim 1, wherein when all of the first to fourth suction position detection sensors have not detected a label, the label sticking operation is stopped. The label sticking apparatus according to claim 1 , wherein an error is notified when all of the first to fourth suction position detection sensors have not detected a label.

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