JP3345443B2 - Label sticking device - Google Patents

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 more particularly to a method for automatically sticking a label on an object being conveyed by a conveyor while peeling the label from a band-shaped backing on which labels are temporarily attached at equal intervals. The present invention relates to a label attaching device.

[0002]

2. Description of the Related Art In a conventional label sticking apparatus, a band-shaped backing sheet on which labels are temporarily attached at regular intervals is rewound from a supply reel that winds and stores the band-shaped backing sheet and is supplied to a backing sheet conveyance path. Then, by folding and moving the band-shaped backing sheet at the end of the label peeling plate provided in the backing sheet conveyance path, the label harder than the backing sheet is peeled off from the band-shaped backing sheet while being adhered to the surface of the object being conveyed by the conveyor. It is fed out to the position. Then, the fed label is pressed by a pressing roller onto the surface of the object to be bonded, thereby attaching the label. At this time, by the detection sensor provided on the conveyor, when the adhered object transported by the conveyor is detected,
The detection signal is input to the control unit of the labeling device. Then, in accordance with an instruction from the control unit, the band-shaped backing sheet wound and stored on the supply reel is rewound, and the label peeled off by the label peeling plate is fed to a predetermined position where the object to be pasted is attached.

[0003] For this reason, in order to accurately apply the label to a predetermined position on the surface of the object, the moving speed of the conveyer (conveying speed of the object) and the feeding speed of the label (winding the band-shaped backing paper from the supply reel). (Return speed) must be the same. However, in general, when purchasing such a label sticking apparatus, a conveyor often used by a purchaser is often used, and the moving speed of the conveyor and the feeding speed of the label may not match.

[0004]

However, in the conventional label sticking apparatus, the moving speed of the conveyor and the feeding speed of the label are set to the same speed as described above.
Since accurate sticking can be performed, there is a disadvantage that accurate sticking cannot be performed when a conveyor having a speed different from the label feeding speed is used.
That is, when the label feeding speed is lower than the moving speed of the conveyor, the label is attached to the rear side of the moving direction of the conveyor from the predetermined position where the object is to be stuck, and when the label feeding speed is faster than the moving speed of the conveyor, the sticking is performed. There is a drawback that it sticks on the front side in the conveyor moving direction from a predetermined position.

Further, since the label is pressed onto the object to be applied while being pressed out by the pressing roller, the label is wrinkled if there is a difference between the label feeding speed and the moving speed of the conveyor. As a countermeasure, it has been studied to vary the rewinding of the supply reel by a variable speed motor so that the feeding speed of the label can be varied. However, since torque fluctuation occurs in accordance with the rewind speed, the rewind speed of the supply reel can be set only in a narrow range, which is not satisfactory as a measure.

The present invention has been made in view of such circumstances, and even if there is a difference between the moving speed of the conveyor for transporting the article and the speed of feeding the label, the label can be accurately positioned at the predetermined position where the article is to be attached. It is an object of the present invention to provide a label sticking device that can be attached to a label.

[0007]

According to the present invention, in order to achieve the above-mentioned object, a band-shaped backing sheet on which labels are temporarily attached at equal intervals is wound and stored, and the band-shaped backing sheet is rewound and supplied to a backing sheet conveyance path. A supply reel that is provided on the mount transport path, a printing device that prints on the label, a separating member that separates the printed label from the band-shaped mount, and a label that is separated by the separating member. A sticking mechanism for sticking to an object being conveyed on the conveyor, a detection sensor provided along the conveyance path of the conveyor, and a detection sensor for detecting the object to be conveyed on the conveyor, based on a detection signal of the detection sensor Control means for controlling the printing device and the sticking mechanism, the sticking mechanism, the conveyor running direction side near the peeling member, the conveyor side to the conveyor side Provided obliquely, the adsorption means and the object to be adhered was subjected to suction hold the label peeled by the peeling member is to wait for the conveyed, supported by the suction means, the said suction means The detection sensor, comprising: a rotatable pressing means provided at a tip end on an inclined side; and a driving means for moving the suction means and the pressing means toward and away from the object to be stuck on the conveyor. Detection signal
The suction means and the pressing means based on the
Approaching the object on the bear, and the pressing means
When the label comes into contact with an accessory, the label is released from suction
It is characterized by the following.

[0008]

First, the operation sequence of the label sticking apparatus according to the present invention will be described. A band-shaped backing sheet on which labels are temporarily attached at equal intervals is rewound from a supply reel that winds and stores the band-shaped backing sheet and is supplied to a backing sheet conveyance path. Is done. Next, the label of the band-shaped backing sheet is separated from the band-shaped backing sheet by a peeling member provided on the backing sheet conveyance path. In a state where the peeled label is suction-held by the suction means controlled to the suction state by the control means,
It waits for the object to be transported.

Next, when an object to be attached conveyed by the conveyor is detected by a detection sensor provided on the conveyor, a detection signal is input to the control means. Then, the driving means is actuated by the control means, and the pressing means provided in the vicinity of the tip of the suction means approaches the object to be adhered, and the pressing means contacts the surface of the object through the label. Abut In synchronization with this contact, the suction of the suction unit is released by an instruction from the control unit, and the label is separated from the suction unit.

Next, according to the label sticking apparatus of the present invention in which the pressing means sticks the label on the surface of the object to be attached while rotating with the movement of the object to be attached, as described above, the strip-shaped member is used as the stripping member. The label peeled off from the backing sheet is sucked and held by the suction means, and it waits until the adhered object is conveyed by the conveyor.Therefore, when attaching the label to the adhered object, it is strip-shaped according to the moving speed of the conveyor. There is no need to feed out labels peeled from the backing paper. This allows the label to be peeled off from the belt-shaped sheet unwound from the supply reel and fed to the application mechanism, and the moving speed of the conveyer is not required to be the same speed. The label can be stuck well and wrinkles can be prevented from being applied to the label stuck on the surface of the object.

The tip of the suction means is inclined toward the conveyor, and the tip is provided with a pressing means. Thus, when the driving means approaches the object to be stuck, only the pressing means abuts the object to be stuck via the label, and affixes the label to the surface of the object while rotating, so that the label is securely attached. Can be pasted on. Further, since the suction means does not come into contact with the adherend, the suction means is not damaged.

As described above, since the label sticking apparatus of the present invention has the sticking mechanism which is hardly influenced by the moving speed of the conveyor which conveys the objects to be stuck, the label feeding speed and the moving speed of the conveyor are reduced. Even if there is a difference, the label can be accurately and reliably attached to the predetermined position of the object to be attached.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a label sticking apparatus according to the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIG. 1, the overall configuration of the label sticking apparatus 10 according to the present invention is to wind and store a band-shaped backing sheet 20 on which labels 18 are temporarily attached at regular intervals, and to rewind the band-shaped backing sheet 20 and supply it to the backing sheet conveyance path. A supply reel 22 and a printer 27 for printing on a label 18 temporarily attached to the band-shaped backing sheet 20 supplied to the backing sheet transport path
And a release plate 24 for releasing the label 18 from the band-shaped backing sheet 20.
And the label 18 peeled off by the peeling plate 24
A sticking mechanism 14 for sticking to the object 12 being conveyed at
The light emitting sensor 26 includes a light emitting sensor 26 that detects the object 12 being conveyed by the conveyor 16, and a controller 80 that controls the operation of the sticking mechanism 14 based on a signal from the light emitting sensor 26. It should be noted that the controller 80 is the label sticking device 10.
Although it is provided separately from the main body, it may be provided integrally with the main body. The printer 27 prints necessary information such as a date, a price, and a bar code on the label 18.

Further, a band-shaped backing paper 20 is provided on the backing paper conveyance path.
And a take-up reel 30 that winds up the band-shaped backing sheet 20 from which the label 18 has been peeled off by the peeling plate 24. The exfoliation plate 24 has a tip 32 formed in a knife-edge shape, and the strip-shaped backing sheet 20 conveyed along the sheet conveyance path is moved to the end section 3.
By folding back at 2, the label 18 having greater rigidity than the band-shaped backing sheet 20 can be peeled off from the band-shaped backing sheet 20. An air outlet pipe 34 is provided near the lower side of the tip portion 32 to assist in peeling off the label 18.

Next, the details of the sticking mechanism 14, which is an improvement of the present invention, will be described with reference to FIGS.
As shown in FIG.
A suction plate 36 in which A is inclined at an angle of more than 10 degrees is provided on the conveyor side, and the suction surface of the suction plate 36 is located on substantially the same plane as the upper surface of the peeling plate 24. A base end portion 36B of the suction plate 36 is swingably supported via a support shaft 40 of a support arm 38 attached to the apparatus main body. 42 are attached. Further, the piston cylinder 42 is supported by the apparatus main body. Thus, the cylinder shaft 44 of the piston cylinder 42
Moves in the YY direction in the drawing, and
6 is AA around the support shaft 40.
It turns in the direction.

As shown in FIG. 3, the suction surface 36C of the suction plate 36 is formed in an inverted concave shape and the suction port 4 provided on the upper surface of the suction plate 36 from the suction surface 36C.
6, a suction path 48 is formed. A suction hose 50 is connected to the suction port 46 and is connected to an air control unit 52 shown in FIGS. 1 and 2, and the air control unit 52 is further connected to a vacuum pump (not shown). On the suction surface 36C side, a suction pad 56 is stuck so as to form a space 54 with the inverted concave shape.
6, a large number of small holes 58, 58... Thereby, when the vacuum pump is operated, the air control unit 52
The suction of the air is appropriately controlled, the non-adhesive surface of the label 18 is suction-held on the surface of the suction pad 56, and when the vacuum pump is stopped, the suction is released and the label 18 is separated from the surface of the suction pad 56. ing.

Further, as shown in FIG.
A pressing roller 60 made of a resilient member such as rubber is provided on the outer side near the front end, and both ends of a rotating shaft 62 of the pressing roller 60 are rotatably supported by the front ends of a pair of roller arms 64. ing. Further, the roller arm 64
Is rotatably supported by a roller support shaft 68 of a roller support member 66 provided on the upper surface of the suction plate 36. Further, one end of a shock absorber 72 is attached to the tip end side of the upper surface of the suction plate 36 at a center position of a rod 70 passed at right angles to the pair of roller arms 64,
The other end of the shock absorber 72 is
It is supported by a shock absorber holder 74 provided on the upper surface. Thereby, the piston cylinder 42
By the stretching operation, the impact force when the pressing roller 60 approaches and adheres to the adherend 12 is absorbed.

Next, the operation of the label sticking apparatus 10 of the present invention configured as described above will be described with the label 18 on the cardboard box 12.
Will be described as an example of pasting. A band-shaped backing sheet 20 on which a plurality of labels 18 are temporarily attached at equal intervals is rewound from a supply reel 22 that winds and stores the band-shaped backing sheet 20, and is supplied to a backing sheet conveyance path. While the band-shaped backing sheet 20 to which the label 18 is temporarily attached is conveyed on the backing sheet conveyance path, the printing unit 27 prints necessary information such as a date on one label 18 which has reached the printing unit 27. Furthermore, the band-shaped backing sheet 20 to which the printed label 18 is temporarily attached is folded back at the leading end 32 of the peeling plate 24 provided in the backing sheet conveyance path, thereby forming the band-shaped backing sheet 2.
The label 18 temporarily attached to 0 is peeled off. In other words, when the band-shaped backing sheet 20 is folded, the label 18 having a higher rigidity than the band-shaped backing sheet 20 is hard to be turned back, and thus is peeled from the band-shaped backing sheet 20. At this time, air is supplied from the air blowing pipe 34 to the label 1.
8 is sprayed in the peeling direction to assist the peeling of the label 18. Then, the air from the air blowing pipe 34 stops just before the label 18 is completely peeled off. The band-shaped backing sheet 20 from which the label 18 has been peeled off is placed on the pass roller 8 from below the peeling plate 24.
After passing through 5, 90, it is taken up on the take-up reel 30.

Next, in synchronization with the peeling of the label 18, the vacuum pump is operated by the instruction from the controller 80, and the suction plate 36 of the sticking mechanism 14 is brought into the suction state.
The non-adhesive surfaces of the labels 18 are held by suction on the suction pad 56. One label 18 is made to stand by in the state of holding by suction. Next, a light emitting sensor 26 and a light receiving sensor 92 are provided along the conveyor 16. The light emitting sensor 26 and the light receiving sensor 92 are optical sensors,
A proximity sensor, a limit switch, and the like are used. The light emitting sensor 26 and the light receiving sensor 92 are connected to the controller 8.
Connected to 0. When a power supply (not shown) provided in the controller 80 is ON, visible light or infrared light is constantly emitted from the light emitting sensor 26 and the light receiving sensor 92 is emitted.
And a light receiving signal is input to the controller 80. Cardboard box 12 conveyed in the F direction on conveyor 16
Enters and interrupts the light emitted from the light-emitting sensor 26, the light does not reach the light-receiving sensor 92, and the light-receiving signal to the controller 80 stops. Based on the light receiving signal 0, the timer function of the controller 80 measures the timing with the speed at which the cardboard box 12 is conveyed to extend the cylinder shaft 44 of the piston cylinder 42. As a result, the suction plate 36 and the pressing roller 60 provided near the tip of the suction plate 36 rotate about the support shaft 40, and move from the state shown in FIG.
As shown in (B), the label 1 is located close to the cardboard box 12.
8 comes into contact with the surface of the cardboard box 12. In synchronization with this contact, the suction plate 36 is instructed by the instruction from the controller 80.
Is released. At this time, the pressing roller 60
The roller arm 64 rotates by contact with the roller box 12.
As shown in FIG.
No suction is released by a signal from a limit switch, etc.
You. Next, the pressing roller 60 presses the label 18 while being rotated in accordance with the movement of the cardboard box 12, and FIG.
As shown in (B), it is stuck on the upper surface of the cardboard box 12. Then, when the label 18 is pasted on the cardboard box 12, the cylinder rod 44 of the piston cylinder 42 is extended by the instruction of the controller 80 to return the pressing roller 60 and the suction plate 36 to the original positions.

By repeating the above operation, the labels 18 temporarily attached to the band-shaped backing sheet 20 can be sequentially attached to the cardboard box 12. According to the label sticking apparatus 10 of the present invention, the label 18 peeled from the band-shaped backing sheet 20 by the peeling plate 24 as described above is suction-held on the suction plate 36, and the cardboard box 12 is conveyed by the conveyor 16 to a predetermined position. Since it waits until it arrives, there is no need to feed out the label 18 peeled off the strip 20 in accordance with the moving speed of the conveyor 16 when attaching the label 18 to the surface of the cardboard box 12. Accordingly, even if the feeding speed of the label 18 to be peeled off from the belt-shaped sheet 20 unwound from the supply reel 22 and fed to the attaching mechanism 14 and the moving speed of the conveyor 16 are not the same speed, the cardboard box 12 Can be accurately attached to a predetermined position, and the label 18 attached to the surface of the cardboard box 12 can be prevented from wrinkling.

The main body of the labeling apparatus 10 and the tip 36A of the suction plate 36 are slightly inclined toward the conveyor 16 and mounted on a gantry, and a pressing roller 60 is provided near the outside of the tip 36A. . This allows the air outlet pipe 3
When the suction plate 36 rotates around the support shaft 40 and moves toward the conveyor 16 by a predetermined distance, only the pressing roller 60 moves through the label 18 without the contact of the suction roller 36 with the conveyed article. The suction plate 36 contacts the surface of the cardboard box 12 and the suction plate 36 does not contact the cardboard box 12.
6 is not damaged.

Further, it is preferable to provide the pressure roller 60 with a shock absorber 72, since the pressure roller 60 absorbs the force of the spring when the pressure roller 60 comes into contact with the cardboard box 12. As a result, the pressing roller 60 rotates while constantly abutting on the surface of the cardboard box 12 to attach the label 18 to the surface of the cardboard box 12, so that the label 18 can be attached more reliably. In particular, a label 18 whose length is as long as 50 mm or more is used.
, The effect of the shock absorber 72 becomes remarkable.

As described above, the label sticking apparatus 1 of the present invention
0 is a conveyor 16 for transporting objects to be stuck such as a cardboard box.
Has a sticking mechanism 14 that is hardly affected by the moving speed of the label 18, even if there is a difference between the feeding speed of the label 18 and the moving speed of the conveyor 16, the label 18 can be accurately and reliably placed at the predetermined position where the object is to be stuck. Can be pasted on. still,
In the present embodiment, an example is described in which a label is attached to a cardboard box, but the present invention is not limited to this. The timing at which the suction plate is moved to the conveyor side can be easily adjusted by the mounting position of the detection sensor provided on the conveyor and the timer mechanism of the controller.

[0024]

As described above, according to the label sticking apparatus of the present invention, the suction means for sucking and holding the peeled label is provided, and the object to be stuck is conveyed by the conveyor and waits until reaching the predetermined position. I did it. Thereby, even if the feeding speed of the label and the moving speed of the conveyor are not the same speed, the label can be accurately attached to the predetermined position of the object to be attached, and the label attached to the surface of the object to be attached can be attached to the label. Wrinkling can be prevented.

Further, the tip of the suction means is inclined toward the conveyor, and a pressing means is provided near the outside of the tip. Accordingly, the pressing means rotates while constantly abutting on the surface of the object to be adhered, and adheres the label to the surface of the object to be adhered, so that the label can be securely adhered. As described above, since the label sticking apparatus of the present invention has the sticking mechanism that is hardly affected by the moving speed of the conveyor that conveys the objects to be stuck, there is a difference between the label feeding speed and the conveyor moving speed. Even with this, the label can be accurately and reliably applied to the predetermined position of the object to be applied.

[Brief description of the drawings]

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

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

FIG. 3 is a detailed view of the suction plate of the present invention.

FIG. 4 is an explanatory view for explaining the operation of the label sticking apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Label sticking apparatus 12 ... Sticking object 14 ... Sticking mechanism 16 ... Conveyor 18 ... Label 20 ... Strip mount 22 ... Supply reel 24 ... Peeling member 26 ... Light emitting sensor 27 ... Printer 36 ... Suction plate 42 ... Piston cylinder Reference numeral 60: pressing roller 72: shock absorber 80: controller 92: light receiving sensor

──────────────────────────────────────────────────の Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65C 9/18 B65C 9/30-9/32 B65C 9/46

Claims (1)

(57) [Claims] A supply reel that winds and stores a band-shaped backing sheet on which labels are temporarily attached at equal intervals, and rewinds the band-shaped backing sheet and supplies the label backing sheet to a backing sheet conveyance path; A printing device that prints, a peeling member that peels the printed label from the band-shaped backing paper, a sticking mechanism that sticks the label peeled by the peeling member to an object being conveyed being transported by a separate conveyor, A detection sensor is provided along the conveyance path of the conveyor, and detects a pasted object conveyed by the conveyor, and includes a control unit that controls the printing device or the pasting mechanism based on a detection signal of the detection sensor. In the label sticking apparatus, the sticking mechanism is provided in the vicinity of the peeling member, the conveyor running direction side is inclined to the conveyor side, and the peeling member is peeled by the peeling member. And adsorption means and said object to be adhered was subjected to suction hold the label you wait for conveyed with the supported adsorption unit, wherein a rotatable, wherein provided on the inclined side tip of the suction means comprises a pressing means, and a driving means for approach and retraction movement towards the suction means and the pressing means to be attached material on the conveyor, based on a detection signal of the detection sensor, said suction means
And the pressing means toward the object to be stuck on the conveyor
When the pressing means comes into contact with the object to be stuck, the label
A label sticking device characterized in that the suction holding of the file is released .