JP2005015021A - Labeling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve accuracy in labeling position. <P>SOLUTION: The labeling machine includes a suction body 12 having a suction surface 14 for sucking a label, and the label is blown by air to label an object body. The suction surface 14 is provided with a number of hole portions 19, and the hole portion is formed with a notched portion 20 made by notching at least part of the periphery of the hole portion 19. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a label sticking device, and more particularly, to a label sticking device that blows a label with air and sticks it to an adherend.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a label sticking device for sticking a label to an adherend conveyed by a conveying means such as a conveyor, there is a label sticking device that attaches a label by flying toward the adherend.
For example, after printing on the printing surface of a label with a label printer, the label sticking device is made to peel the label from the mount with a peeling plate, and temporarily hold the peeled label with an adsorbent disposed in the label sticking device. Yes.
At this time, the label is sucked and held on the printing surface of the label by the suction action of air from many holes formed on the suction surface of the suction body.
[0003]
When the adherend conveyed by a conveyor or the like reaches a predetermined label application position, the air is switched from suction to blowing, and the label adsorbed by the adsorbent is blown toward the adherend. Affixed to the adherend. (For example, Patent Document 1)
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-46723
[Problems to be solved by the invention]
However, when the label adsorbed by the adsorbent is blown toward the adherend, air is blown onto the label in a spot by blowing air from each hole of the adsorbent, so the label is unstable. There is also a problem that the label is not affixed to a predetermined affixing position of the adherend and the accuracy of the affixing position is low.
[0006]
In addition, when the label is attached to the adherend due to unstable flying, there is a problem that air enters the inside of the label, causing part of the label to stick incompletely or wrinkles. .
[0007]
The present invention has been considered in view of the above problems, and an object of the present invention is to provide a label sticking device that can improve the precision of a sticking position so as to stick a label to a predetermined sticking position of an adherend.
[0008]
Another object of the present invention is to provide a label applicator that prevents wrinkles from occurring by preventing air from entering the inside of the label and allowing the label to adhere completely.
[0009]
[Means for Solving the Problems]
Since the present invention focuses on the fact that the area to which air is blown is widened, an adsorbent having an adsorbing surface for adsorbing the label is provided, the fed label is held on the adsorbing surface, and the label is covered by air blowing. In the label affixing apparatus that flies toward an adherend and affixes the label to the adherend, a plurality of holes for blowing air to the label are formed on the suction surface, and at least a part of the periphery of the hole It is characterized in that a cutout portion is formed by cutting out the.
[0010]
In the label sticking apparatus, the plurality of holes are formed in a substantially circular shape, and a circular cutout is formed along a peripheral edge of the hole on the suction surface.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic configuration diagram of an entire label attaching apparatus provided with a label printer, FIG. 2 is a partially cutaway sectional view of an adsorbing body of the label attaching apparatus, and FIG. 3 is an adsorbing surface of the adsorbing body. FIG. 4 is a plan view showing a part of the label continuum.
[0012]
The label sticking device 5 includes a label printer 1 that feeds a label onto a suction surface 14 of the suction body 12 to be described later, and is disposed on the side of a transport means such as a conveyor 24 that transports the adherend 23.
A label continuum 25 loaded in the label printer 1 is temporarily attached to a strip-like mount 26 (hereinafter referred to as “mount” as appropriate) so that a plurality of labels 27. Each label 27 is coated with a pressure-sensitive adhesive on one surface, and the surface coated with the pressure-sensitive adhesive is temporarily attached to a surface on which a strip-like mount 26 is coated with a release agent such as silicone. (See Figure 4)
The other side of the label 27 has a printing surface and a heat-sensitive coloring layer that develops color when heated.
[0013]
The label printer 1 includes a paper supply unit 2, a printing unit 3, a peeling unit 4, and a mount winding unit 6.
The paper supply unit 2 is provided with a supply shaft 7 that rotatably holds a roll-shaped continuous label body 25, and is fed out toward the printing unit 3.
The printing unit 3 includes a thermal head 8 and a platen roller 9, and the thermal head 8 is provided so as to be able to contact with and separate from the platen roller 9.
Further, the platen roller 9 is provided so as to be driven in forward and reverse rotation by driving a stepping motor (not shown).
In addition, while the label continuous body 25 is nipped and transported by the thermal head 8 and the platen roller 9, the heat generation is performed by applying selective heat generation from a heating element (not shown) of the thermal head 8 to the printing surface of the label 27. The desired printing such as characters and barcodes can be performed.
[0014]
The peeling unit 4 is provided with a peeling plate 10 for turning the mount 26 at an acute angle, the label 27 printed by the printing unit 3 is turned at the tip of the peeling plate 10, and the rigidity of the label 27 is changed from the mount 26. The label 27 is peeled off.
The peeled label 27 is fed to the suction surface 14 of the suction body 12 of the label sticking device 5 to be described later, and the mount 26 turned at the tip of the release plate 10 is transferred to the mount take-up unit 6.
The mount take-up unit 6 has a take-up shaft 11 for taking up the mount 26 and rotationally drives the take-up shaft 11 by a stepping motor (not shown) or the like, whereby the label 27 is peeled off. The peeled backing sheet 26 is wound up.
[0015]
The label sticking device 5 is mainly provided with an adsorbing body 12 and a cylinder mechanism 17, and adsorbs the printed surface of the peeled label 27 to the adsorbing surface 14 of the adsorbing body 12 by sucking air.
The adsorbent 12 forms a hollow portion 13 in which the inside of the adsorbent 12 is hollow, and a pipe 15 is provided so as to communicate with the hollow portion 13. The pipe 15 is connected via an electromagnetic valve 16 to an air source E that sends or sucks compressed air to the hollow portion 13 of the adsorbent body 12.
[0016]
The cylinder mechanism 17 includes a rod 18 that moves the adsorbing body 12 toward the adherend 23 so as to freely advance and retract. The adsorbing body 12 is provided at the tip of the rod 18, and the adsorbing body 12 is moved forward and backward. Can move forward and backward in the direction of the adherend.
The cylinder mechanism 17 employs an air system and is connected by a hose (not shown) from the air source E, and the rod 15 is operated by the air through the hose so that the rod 15 can be moved forward and backward.
The moving distance by which the adsorbing body 12 moves back and forth may be arbitrary as long as the rear end of the label 27 to be peeled is a position that is slightly shifted from the front end of the peeling plate 10.
Further, the electromagnetic valve 16 is switched so as to send or suck air from the air source E to the adsorbent 12 via the pipe 15.
[0017]
In addition, a large number of holes 19 that communicate from the hollow portion 13 of the adsorbent 12 to the adsorption surface 14 are formed. The large number of holes 19 are configured so that the labels 27 peeled off by the peeling plate 10 can be sucked and sprayed, and each hole 19 has a circular cross section and a circular diameter D1. It is.
A circular notch 20 having a diameter longer than the diameter D <b> 1 of the hole 19 is formed on the suction surface 14 along the periphery of the hole 19. The circular cutout 20 is cut into a diameter D2 that is longer than the diameter D1 of the hole 19, and is cut into a substantially conical shape so as to incline toward the hollow portion.
In this embodiment, an example in which the notches 20 are formed in all the holes 19.. 19 will be described. However, the notches 20 are used to suck and blow the printing surface of the label 27. It is preferable to form only. In addition, in the quadrangular label, four or more appropriately notched portions 20 may be formed in the corner portion.
[0018]
In the embodiment of the present invention, since the diameter D1 of the hole 19 is 3 mm and the diameter D2 of the notch 20 is 5 mm, each hole 19 has a wide area to be sucked or sprayed on the printing surface of the label 27. Therefore, the label 27 can be blown very straight when the label 27 is directed toward the adherend 23 and sprayed.
In addition, when the length of the diameter D2 is lengthened, the notch portion 20 is widened, and the attracting force is reduced when the label 27 is attracted. Therefore, the preferable diameter D2 is 4 mm to 6 mm.
[0019]
The operation of the label sticking apparatus including the label printer configured as described above will be described.
The label continuum 25 fed from the supply shaft 7 is transferred to the printing unit 3 via the paper sensor 21 and the guide roller 22.
In the paper sensor 21, a transmission type sensor is arranged in the transfer path of the label continuum 25 so as to detect the transmission amount of the part 26 of the label continuum 25 and the part where the base 26 and the label 27 overlap. Yes, based on the detected transmission amount, control is performed by sending a signal to a control unit (not shown) so that the printing start reference position for printing on the label 27 and the leading end of the label 27 are stopped at the leading end position of the peeling plate 10. It is like that.
Note that a detection mark (not shown) may be printed on the opposite surface of the mount 26 on which the label 27 is temporarily attached, and a reflective sensor may be disposed as a paper sensor.
[0020]
The label continuum 25 transferred to the printing unit 3 performs desired printing on the label 27, the printed label 27 advances to the peeling unit 4, the mount 26 is turned by the peeling plate 10, and the label 27 moves forward. It is drawn out and held by suction on the suction surface 14 of the suction body 12.
At this time, control is performed so that the leading end of the label 27 next to the printed label 27 stops at the leading end of the peeling plate 10.
Further, air suction (negative pressure) action is generated in each hole portion 19 so as to suck the printing surface of the label 27 on the suction surface 14.
The adsorbent 12 is configured such that the rod 18 advances toward the adherend 23 by a predetermined distance while the label 27 is adsorbed and held, so that the adsorbent 12 is slightly moved closer to the adherend 23. Move to.
[0021]
Next, when the adherend 23 is conveyed to the affixing position by the conveyor 24, an object detection sensor (not shown) detects the adherend 23 and sends this signal to a control unit (not shown).
Based on this signal, the solenoid valve 16 is switched, and the air sent to the adsorbent 23 is switched from suction (negative pressure) to blowing (positive pressure). As a result, the label 27 is blown very straight toward the adherend 23 (in the direction of arrow F), and the label 27 is attached to the attachment position on the upper surface of the adherend 23.
The object detection sensor is provided with a transmission sensor on the side edge of the conveyor, and sends a signal when the adherend 23 passes the object detection sensor.
[0022]
After the label held on the suction surface is blown toward the adherend, the rod returns to the position where the label is fed out, and the label located at the tip of the peeling plate is back-fed and controlled to return to the start of printing, The next print start data is waited for, and the above operation is repeated.
[0023]
When the label 27 is blown toward the adherend 23, air is sent out from each hole 19 through the pipe 15 and the hollow portion 13. The air sent from each hole 19 is blown onto the printing surface of the label 27 in a wide area through the notch 20.
Since each notch 20 has a diameter D2 longer than the diameter of each hole 19, air circulates through the notch 20, and the area where the air is blown onto the printing surface of the label 27 becomes wider and stable. You can fly straight.
Therefore, the label 27 can be attached to the attaching position of the label 27 of the adherend 23 with high accuracy and can be attached neatly.
[0024]
The notch portion described in the present embodiment has been described as a substantially conical shape that is notched in an inclined shape. It is only necessary to have a notch as a notch in a part of the periphery of the hole.
[0025]
Moreover, although the label sticking apparatus which sticks a label on the upper surface of a to-be-adhered body was demonstrated, it can apply also to the label sticking apparatus which sticks a label to the side surface or bottom face of an to-be-adhered body.
[0026]
Although the label sticking device of the present invention has been described as a label sticking device provided with a label printer, the label printer may be provided as necessary.
In addition, the label continuous body in which the label is temporarily attached to the mount has been described, but a strip-shaped label without a mount may be used. In this case, a cutting portion is provided instead of the peeling portion, and the cutting portion is provided as necessary. A feeding roller may be provided between the suction member and the suction member.
Furthermore, although the example provided with the cylinder mechanism which advances and retracts the adsorbent toward the adherend has been described, the cylinder mechanism may be provided as necessary.
[0027]
【The invention's effect】
As described above in detail, according to the present invention, the label can be skipped very stably and straightly, and the accuracy of the attaching position of the adherend can be improved.
In addition, air can be prevented from entering the inside of the label to prevent wrinkles and the label can be affixed neatly.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an entire label sticking apparatus including a label printer according to the present invention.
FIG. 2 is a cross-sectional view of the adhering body of the label sticking device, partly cut away.
FIG. 3 is an explanatory view from the adsorption surface of the adsorber.
FIG. 4 is a plan view showing a part of a label continuum.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Label printer 2 Paper supply part 3 Printing part 4 Separation part 5 Label sticking apparatus 6 Mount winding part 10 Separation plate 12 Adsorbent body 13 Hollow part 14 Adsorption surface 17 Cylinder mechanism 19 Hole part 20 Notch part 23 Adhering body 25 Label continuous Body 26 Band-shaped mount 27 Label D1 Diameter of hole D2 Diameter of notch

Claims (2)

An adsorbent having an adsorbing surface for adsorbing a label is provided, and the fed label is held on the adsorbing surface, and the label is attached to the adherend by blowing air toward the adherend by blowing air. In the labeling device to
A label affixing device, wherein a plurality of holes for blowing air to the label are formed on the suction surface, and a notch is formed by cutting out at least a part of the periphery of the hole. 2. The label sticking apparatus according to claim 1, wherein the plurality of hole portions are formed in a substantially circular shape, and a circular cutout portion is formed along a peripheral edge of the hole portion of the suction surface.

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