JPH06263129A - Device for sticking label - Google Patents

Abstract

PURPOSE:To provide a device for sticking a label which makes it unnecessary to equalize the speed at which an object for labeling is conveyed to that at which a label is fed and to replace a suction board even when a pitch changes with respect to the label. CONSTITUTION:As a strip of mount 12 with a series of labels 10 temporarily attached thereto at regular intervals is unwound from a payoff reel, a removing board 16 removes the label 10, which a suction board 34 holds by suction. The suction board 34 and the removing board 16 are relatively so positioned that the rear end of the label 10A always comes to the same position independent of a pitch 13 of the label 10. Then the suction board 36 swings to bring its part on the side of the removing board 16 toward a conveyor 18 and in this state stands by for a corrugated paperboard box 20 brought on a conveyor 18. Detective sensors 48, 50 detect the forward end of the corrugated paperboard box 20 as it is brought forward; after a prescribed period of time following the detection, a sliding pressing roller 46A, provided on the side of the removing board 16 on the suction board 36, is slid toward the corrugated paperboard box.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking apparatus, and in particular, a label which is peeled from a strip-shaped mount on which labels are temporarily attached at equal intervals and which is automatically stuck to an adherend being conveyed by a conveyor. Regarding the sticking device.

[0002]

2. Description of the Related Art In a conventional label sticking device, a strip-shaped mount having labels temporarily attached thereto is unwound from a supply reel that stores the strip-shaped mount and is supplied to a mount transport path. Then, by folding and moving the strip-shaped mount at the tip of the label peeling plate provided in the mount transport path,
While the label peeled from the strip-shaped backing sheet, it was delivered to the article to be attached being conveyed by a conveyor, and the label was attached to the article to be attached by pressing the delivered label against the article to be attached with a pressing roller. In this case, in order to accurately attach the label to the attachment position of the adherend, the moving speed of the conveyor (conveying speed of the adherend) and the feeding speed of the label (rewinding speed of the strip mount from the supply reel) are set. It is necessary to be the same.

Further, as another label sticking device, as shown in FIG. 5, a label 3 peeled by the peeling plate 2 is provided in the vicinity of the tip end side of the peeling plate 2 provided on the conveyance path of the strip-shaped mount 1. There has been proposed a label sticking device having a structure in which a suction plate 4 for sucking and holding is provided and a pressing roller 5 is provided on the opposite side of the suction plate 4 in the direction of the peeling plate 2. That is, the label 3 sucked and held by the suction plate 4 stands by until the adherend 7 is conveyed by the conveyor 6 in this state, and when the adherend 7 is conveyed to the attaching position, the label 3 is pressed by the pressing roller 5. 3 is pressed against the adherend 7, and there is a feature that it is not necessary to make the moving speed of the conveyor 6 and the feeding speed of the label 3 the same.

[0004]

However, the above-mentioned conventional label sticking apparatus has the following drawbacks. (1) In the case of a conventional labeling device that does not have a suction cup,
It is necessary that the moving speed of the conveyer (conveying speed of the adherend) and the feeding speed of the label (speed of rewinding the strip-shaped mount from the supply reel) are the same. However, in general, when purchasing such a label sticking apparatus, the conveyor often uses the one that the purchaser has conventionally used, and the moving speed of the conveyor and the feeding speed of the label may not match. As a result, there is a drawback in that accurate bonding cannot be performed when a conveyor having a speed different from the label feeding speed is used. (2) A conventional label sticking device having a suction cup has a plurality of different lengths of the label 3, that is, a length in a direction in which the so-called label 3 is peeled from the peeling plate 2 and fed to the suction cup 4 (hereinafter referred to as pitch 8). When the labels 3 are used properly, there is a disadvantage that the suction plate 4 has to be replaced each time according to the pitch 8 of the labels 3. That is, the suction holding position of the label 3 sucked and held by the suction plate 4 is irrespective of the pitch 8 of the label 3 due to the positional relationship between the peeling plate 2 and the suction plate 4, and the label rear end portion 3A (peeling plate 2 side). Are sucked and held so that they are always in the same position. Therefore, as shown in FIG. 6, in the case of the label 3 longer than the length of the suction plate 4 (the length in the same direction as the pitch 8 of the label 3), the leading end portion 3B of the label 3 hangs down, so that it is pressed. Before the roller 5 performs the sticking operation, the label 3 sticks to the sticking object 7 and cannot be sticked to the sticking position of the sticking object 7 accurately. Further, as shown in FIG. 7, in the case of the label 3 shorter than the length of the suction plate 4, since the leading end portion 3B of the label 3 does not reach the pressing roller 5,
Even if the pressing roller 5 performs the sticking operation, the label 3 remains stuck to the suction plate 4, and the label 3 cannot be stuck to the sticking target 7.

The present invention has been made in view of the above circumstances, and it is not necessary to make the feeding speed of the adherend and the feeding speed of the label the same, and even if the label pitch changes, the suction plate can be used. It is an object of the present invention to provide a labeling device that does not need to be replaced.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention accommodates a strip-shaped mount on which a plurality of labels are temporarily attached at equal intervals, and rewinds the strip-shaped mount to transport the mount. Supply reel, a peeling member that is provided in the mount conveyance path and that peels the label from the strip mount, a suction holding unit that sucks and holds the label that is peeled by the peeling member, and the label that sucks and holds the label. A swinging means for swinging the suction holding means in the direction of the conveying means before applying the label, and a slidable member provided on the peeling member side of the suction holding means, and an object to be attached on the conveying means at the time of attaching the label. Is provided along the transporting means, and a rotatable pressing means for pressing the adherend via the label suction-held by the suction-holding means, A detection sensor for detecting the adherend conveyed by the feeding means, and a control means for controlling the slide timing of the pressing means on the basis of the detection signal of the detection sensor, which are conveyed in the peeling member side direction. It is characterized in that the label suction-held by the suction-holding means is pasted onto the pasting object from the peeling member side.

[0007]

The operation sequence of the label sticking apparatus of the present invention will be described. A strip-shaped mount on which a plurality of labels are temporarily attached at equal intervals is unwound from a supply reel that stores the strip-shaped mount and supplied to the mount transport path. To be done. Next, the label temporarily attached to the strip-shaped mount is stripped from the strip-shaped mount by the peeling member provided on the mount-transporting path and suction-held by the suction-holding means. At this time, the suction holding position of the label sucked and held by the suction holding means is always the same position on the label rear end (peeling member side) regardless of the label pitch because of the positional relationship between the peeling member and the suction holding means. Is sucked and held.
Next, the peeling member side of the suction holding means is swung to the conveying means direction side by the swinging means, and in this state, the adherend waits for being conveyed from the suction holding means side to the peeling member side by the conveying means. To do.

Next, when the detection sensor provided in the carrying means detects the adhered object carried by the carrying means, a detection signal is input to the control means. Next, the rotatable pressing means provided on the peeling member side of the suction holding means slides toward the adherend that is conveyed based on the detection signal of the detection sensor, and suction holds the suction holding means. It comes into contact with the adherend via the label thus attached. Then, the pressing means rotates with the movement of the adherend to adhere the label to the adherend from the rear end side.

As described above, according to the label sticking apparatus of the present invention, the label is sucked and held by the suction holding means until the sticking object is conveyed, so that the sticking speed of the sticking object is increased. And the feeding speed of the label need not be the same. Further, since the pressing roller is provided on the peeling member side of the suction holding means, if the suction holding means having a length matched to the label with the longest pitch among the labels having different pitches is used, the label pitch is Even if it changes, it is not necessary to replace the suction holding means each time according to the label pitch. That is, as described above, even if the label pitch is changed, the rear end portion (on the peeling member side) of the label that is suction-held by the suction-holding means is always at the same position. With the sticking operation of the pressing roller provided on the peeling member side of the suction holding means, the label can be surely stuck to the adherend.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a label sticking apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a configuration diagram of a label sticking apparatus of the present invention. Mainly, a strip-shaped mount 12 on which labels 10 are temporarily attached at equal intervals is wound and housed, and the strip-shaped mount 12 is rewound and supplied to a mount transport path. The reel 14, the peeling plate 16 for peeling the label 10 from the strip-shaped mount 12, and the label 1 peeled by the peeling plate 16
A sticking mechanism which is an improved part of the present invention for sucking and holding 0 and sticking it to an adherend being conveyed by a separate conveyor 18, a take-up reel 24 for winding the strip-shaped mount 12 from which the label 10 has been peeled off, The controller 26 controls the drive of the entire label sticking apparatus.

Further, when the strip-shaped mount 12 is conveyed on the above-mentioned conveying path, the strip-shaped mount 12 is sandwiched between the drive roller 30 and the driven roller 32, and the drive roller 30 intermittently rotates and the driven roller 32 is driven to rotate. It is done by The rotation shaft of the drive roller 30 is connected to the rotation shaft of the take-up reel 24 via a belt.
Rotates in synchronism with the rotation of the driving roller 30 and winds the strip-shaped mount. Also, the drive roller 30
The timing of the rotation drive of is controlled by an instruction from the controller 26 via the wiring 25 connecting the controller 26 and the drive unit of the drive roller 30. That is, as the drive roller 30 rotates, the strip-shaped backing sheet wound around the supply reel 14 is rewound to the transport path and reaches the peeling plate 16 via the guide roller 28. Then, the label 10 is peeled off from the strip-shaped mount 12 by folding back the tip portion with the peeling plate 16 formed in a knife edge shape. Further, the strip-shaped mount 12 from which the label 10 has been peeled off by the peeling plate 16 is taken up by the take-up reel 24 via the drive roller 30 and the driven roller 32.

Next, the details of the sticking mechanism which is an improved part of the present invention will be described. As shown in FIG. 1, a suction plate 34 is provided in the vicinity of the peeling plate 16, and a suction surface 34A of the suction plate 34 is located substantially flush with the upper surface 16A of the peeling plate 16. Further, a fan device 36 integrated with the suction plate 34 is provided on the upper surface of the suction plate 34, and the suction device 34 is operated by operating the fan device 36.
The suction surface 34A becomes negative pressure, and the label 10 peeled from the peeling plate 16 is suction-held. This suction mechanism is shown in FIG. 2 (members other than the suction mechanism are omitted).
According to the explanation, the suction surface 34A side of the suction disk 34 is
The suction plate 3 is formed in a reverse concave shape and is sucked from the suction surface 34A side.
The suction path 34C is formed up to the suction port 34B formed on the upper surface of the No. 4. Further, on the suction surface 34A side, the suction pad 3 is formed so as to form a space 34D with the reverse concave shape.
4E is attached, and a large number of small holes 34F are opened in the suction pad 34E. Further, on the upper surface of the suction plate 34,
The fan motor 36A is fixed, and a fan 36C is attached to the tip of a rotary shaft 36B of the fan motor 36A. In addition, a fan case 36 is provided on the upper surface of the suction plate 34 so as to communicate with the suction port 34B and cover the fan 36C.
D is provided, and the exhaust port 3 is provided on the upper surface of the fan case 36D.
6E is formed. Further, the fan motor 36A is connected to the controller 26 by a wiring 39 (see FIG. 1), and operates according to an instruction from the controller 26. As a result, when the fan 36C rotates, the air 35 is sucked through the small holes 34F of the suction pad 34E and the suction path.
Since it is exhausted from the exhaust port 36E of the fan case 36D through 34C, the suction surface 34A becomes negative pressure, and the fan 36
When the rotation of C is stopped, the negative pressure is released.

Further, as shown in FIG. 1, a first piston cylinder 38 is provided above the base end portion of the suction plate 34 (on the side opposite to the peeling plate 16) and is supported by a device body (not shown). The upper end of the link rod 40 is rotatably supported by the pin 38B at the tip of the piston rod 38A of the first piston cylinder 38, and the link rod 4 is
The lower end of 0 is rotatably supported by a pin 42A of a projecting plate 42 provided at the base end of the suction plate 34. Further, a rotary shaft 44 is provided at the center of both side surfaces of the suction plate 34, and is pivotally supported by a bearing provided in the main body of the device (not shown). The first piston cylinder 38 is connected to the controller 26 by the wiring 27 and operates according to an instruction from the controller 26. Accordingly, when the piston rod 38A of the first piston cylinder 38 is contracted, the suction plate 34 swings about the rotation shaft 44 in the direction of the conveyor 18 by a predetermined angle, and the contracted piston rod 38A is expanded. Then, the suction plate 34 returns to its original position.

An inclined surface is formed on the suction plate 34 on the side of the peeling plate 16 and the pressing roller device 46 is formed along the inclined surface.
Is provided. The structure of the pressing roller device 46 will be described with reference to FIG. 3. Both ends of the rotating shaft 46B of the pressing roller 46A made of an elastic member such as rubber are rotatably supported by a substantially U-shaped shaft support plate 46C. Has been done. A pair of slide rods 46D, 46D extending from both ends of the shaft support plate 46C are slidably supported by a slide support base 46E fixed to the upper end of the inclined surface.
A second piston cylinder 46F is fixed to the upper surface of the slide support base 46E, and a tip end portion of a piston rod 46G of the second piston cylinder 46F is attached to a rear center of the shaft support plate 46C. The second piston cylinder 46F is connected to the controller 26 by a wire 47 and operates according to an instruction from the controller 26. As a result, when the piston rod 46G of the second piston cylinder 46F is extended, the pressing roller 46A
Is slid downward along the inclined surface, and when the extended piston rod 46G is contracted, the pressing roller 46A returns to its original position.

Further, as shown in FIG. 1, a light projecting sensor 48 and a light receiving sensor 50 (on the back side of the drawing) are provided along the conveyor 18, and these sensors 48, 50 are connected to the controller 26 by wires 52, 54. It is connected to the.
When a power source (not shown) provided in the controller 26 is ON, visible light or infrared light is constantly emitted from the light projecting sensor 48 and is received by the light receiving sensor 50, and the light receiving signal is received by the controller 26. Entered in. When the light emitted from the light projecting sensor 48 is blocked, the light to the light receiving sensor 50 does not reach and the light receiving signal to the controller 26 stops. Based on this received light signal, the timer function of the controller 26 causes the second
Piston cylinder 46F operates to press roller 46A
Is slid downward along the inclined surface of the suction plate 34.

Next, the operation of the label sticking apparatus of the present invention configured as described above will be described with reference to an example of sticking the label 10 on the corrugated board box 20. Note that it is assumed that the label 10 has already been subjected to necessary printing by a printing machine provided separately. First, as shown in FIG. 1, a strip-shaped mount 12 on which a plurality of labels 10 are temporarily attached at equal intervals is rewound from a supply reel 14 and supplied to the mount transport path. The label 10 temporarily attached to the strip-shaped mount 12 is peeled off by folding back the strip-shaped mount 12 to which the label 10 is temporarily attached at the tip of the peeling plate 16 while being conveyed on this mount-passage path. That is, when the strip-shaped backing sheet 12 is folded back, the label 10 having a higher rigidity than the strip-shaped backing sheet 12 is difficult to be folded back, and is peeled off from the strip-shaped backing sheet 12. Next, in synchronization with the peeling of the label 10, the fan 34C is rotated according to an instruction from the controller 26, the suction surface 34A of the suction plate 34 is in a negative pressure state, and one label 1
The non-adhesive surface of 0 is sucked and held by the suction pad 34E. At this time, the suction holding position of the label 10 sucked and held by the suction disc 34 is determined by the positional relationship between the peeling plate 16 and the suction disc 34.
Label rear end portion 10A regardless of the pitch 13 of the label 10
Are sucked and held so that they are always in the same position.

Next, as shown in FIG. 4, the controller 2
According to the instruction from 6, the first piston cylinder 38 operates, the piston rod 38A contracts, and the peeling plate 16 side of the suction plate 34 swings toward the conveyor 18 by a predetermined angle.
In this state, the cardboard box 20 conveyed from the suction plate 34 side toward the peeling plate 16 side is awaited by the separately provided conveyor 18. Next, when the front end of the corrugated board box 20 in the carrying direction blocks the light from the light emitting sensor 48, the light receiving sensor 50
Detects this and inputs the signal to the controller 26. Then, after a predetermined time by the timer function built in the controller 26, that is, at the timing when the pressing roller 46A comes into contact with the label sticking start position on the upper surface of the cardboard box 20, the piston rod 4 of the second piston cylinder 46F is pressed.
6G extends. As a result, the pressing roller 46A is
While sliding along the inclined surface of the suction disk 34, the suction disk 34 comes into contact with the upper surface of the cardboard box 20 via the label rear end portion 10A suction-held by the suction disk 34. Next, the pressing roller 46A
Attaches the label 10 to the upper surface of the cardboard box 20 while being rotated while the cardboard box 20 moves. Then, when the label 10 is completely attached to the cardboard box 20, the piston rod 46G of the second piston cylinder 46F contracts to return the pressing roller 46A to the original position according to the instruction of the controller 26, and the first piston cylinder 38 The piston rod 38A of No. 3 extends to return the suction plate 34 to its original position.

By repeating the above operation, the label 10 temporarily attached to the strip-shaped mount 12 can be sequentially attached to the cardboard box 20. Thus, according to the label sticking apparatus of the present invention, the label 10 is suction-held on the suction plate 34 and waits until the cardboard box 20 is conveyed,
The pressing roller 46A was slid toward the corrugated cardboard box 20 at the attachment timing. Thus, unlike the conventional label sticking device, it is not necessary to make the conveying speed of the conveyor 18 for conveying the cardboard box 20 and the feeding speed of the label 10 for the cardboard box 20 the same.

A pressing roller 46A is provided on the suction plate 34 on the side of the peeling plate 16. As a result, like the conventional label sticking device having the suction plate 34, the pitch 1 of the label 10 is
When 3 is changed, the suction cup 34 is set to the pitch 1 of the label 10.
There is no need to change each time in line with 3 and pitch 13
Of the different labels 10, the suction cup 34 having a length (length in the same direction as the pitch 13 of the label 10) matched with the label 10 having the longest pitch 13 may be used. That is, as described above, even if the pitch 13 of the label 10 changes,
The rear end portion 10A of the label 10 sucked and held by the suction disk 34
Since the (peeling plate 16 side) is always in the same position, the suction plate 3
The label 10 can be surely stuck to the corrugated cardboard box 20 by the sticking operation of the pressing roller 46A provided on the side of the peeling plate 16 of No. 4.

Further, in order to attach the label 10 sucked and held on the suction disk 34 from the rear end portion 10A side, the peeling plate 16 side of the suction disk 34 is swung, but as an additional effect, When the label 10 is sucked and held by the suction disk 34, the position where the label is attached to the corrugated cardboard box 20 is displaced even if the label rear end portion 10A is not completely separated from the band-shaped backing sheet 12, that is, the state in which the so-called adhesive is poorly cut. Can be pasted accurately without. That is, when the label 10 is sucked and held by the suction plate 34, the label rear end portion 10A is moved to the strip-shaped mount 1
Even if the adhesive is not completely cut off from 2, the label rear end portion 10A can be moved by swinging the peeling plate 16 side of the suction plate 34.
Can be completely separated from the strip mount 12.

In the present embodiment, the example in which the label 10 is attached to the cardboard box 20 has been described, but the present invention is not limited to this. Further, in this embodiment, the label 10 preliminarily printed by a separate printing machine is used, but a thermal head and a platen roller are provided between the guide roller 28 and the peeling plate 16 so that the belt-shaped mount 12 is being conveyed. It may be printed with. Although the suction mechanism of the suction disk 34 is performed by the fan device 36, a device such as a vacuum pump may be used. Further, in this embodiment, the piston cylinder is used as the swing power of the suction plate 34 and the pressing power of the pressing roller 46A, but the present invention is not limited to this, and a solenoid, a motor or the like may be used.

[0022]

As described above, according to the label sticking apparatus of the present invention, the suction holding means for sucking and holding the label peeled by the peeling member is provided, and the peeling member side of the suction holding means is swung. The pressing means provided on the peeling member side of the suction holding means is slid toward the adherend. With this, it is possible to wait until the adherend is conveyed while the label is suction-held by the suction-holding means, so that it is not necessary to make the conveying speed of the adherend and the feeding speed of the label the same. Further, since the pressing roller is provided on the peeling member side of the suction holding means, it is not necessary to replace the suction holding means each time in accordance with the label pitch even if the label pitch changes.

Further, when the label is sucked and held by the suction holding means, the peeling member side of the suction holding means swings even when the rear end of the label is not completely separated from the strip mount, that is, when the so-called adhesive is not well cut. Since the glue is cut off by doing so, the label can be accurately attached without shifting the attaching position on the adherend.

[Brief description of drawings]

FIG. 1 is a configuration diagram illustrating an embodiment of a label sticking apparatus according to the present invention.

FIG. 2 is a sectional view illustrating a suction mechanism of the label sticking apparatus according to the present invention.

FIG. 3 is an explanatory view illustrating a pressing roller device of the label sticking device according to the present invention.

FIG. 4 is an explanatory view for explaining a state of the label sticking apparatus according to the present invention at the time of sticking a label.

FIG. 5 is an explanatory diagram illustrating a main part of a conventional label sticking device.

FIG. 6 is a state diagram in which a label having a long pitch is sucked and held by a conventional label sticking device having a suction plate.

FIG. 7 is a state diagram in which a label having a short pitch is suction-held in a conventional label sticking device having a suction plate.

[Explanation of symbols]

 10 ... Label 12 ... Strip mount 14 ... Supply reel 16 ... Separation plate 18 ... Conveyor 20 ... Cardboard box 24 ... Take-up reel 26 ... Controller 34 ... Adsorption board 36 ... Fan device 38 ... First piston cylinder 40 ... Link rod 42 ... Projection plate 44 ... Rotating shaft 46 ... Pressing roller device 48 ... Light emitting sensor 50 ... Light receiving sensor

Claims (1)

[Claims] 1. A supply reel, which is provided in the mount transport path, for winding and storing a strip mount on which a plurality of labels are temporarily attached at equal intervals, and for rewinding the strip mount to supply to the mount transport path. The peeling member for peeling the label from the strip-shaped mount, the suction holding means for sucking and holding the label peeled by the peeling member, and the suction holding means for sucking and holding the label are shaken in the direction of the conveying means before the label is attached. Swinging means for moving, and slidably provided on the peeling member side of the suction holding means, and are sucked and held by the suction holding means by sliding toward the adherend on the conveying means during label sticking. Rotatable pressing means for pressing the adherend via the label, and a detection section provided along the conveying means for detecting the adherend conveyed by the conveying means. And Sir, and control means for controlling the slide timing of the pressing means on the basis of a detection signal of the detection sensor, consists,
A label sticking device, wherein a label sucked and held by the suction holding means is stuck to the sticking object conveyed in the peeling member side direction from the peeling member side.