JPH05139429A - Label sticking device - Google Patents

Abstract

PURPOSE:To draw a label to a specified position on a suction belt, and paste the label accurately at a specified location on an object-to-be-pasted regardless of the self-weight, etc., of the label by pinching a label which is peeled from a release support paper, between the suction belt and a pinching roller. CONSTITUTION:For a label pasting device 10, a label continuous body 2 is led from a holding reel 34 of a label feeding unit 30 to a releasing tool 42, and the release support paper 3 is cut back, and the label continuous body 2 is wound up by a winding up reel 46. Also, a label 4 is cut back from the release support paper 3, and is fed to a label transfer unit 50. In addition, the label 4 is pinched by respective suction belts 66 (a-c) and respective pinching rollers, which are not shown in the sketch, and after the label 4 is transferred to a supporting arm 60, the label 4 is drawn by respective suction belts 66. In the meantime, an object-to-be-pasted 1 is transferred to a location under the label transfer unit 50 by a conveyor 20. Then, the label 4 drawn by respective suction belts 66 is pasted on the upper surface of the object-to-be-pasted 1, and at the same time, the pasted label 4 is pressed from the top by a pressing roller 64.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking device, and more particularly to a label sticking device having a suction belt for sucking a label peeled from a peeling mount and transferring the label to the adherend.

[0002]

2. Description of the Related Art A conventional label sticking apparatus and a label printing sticking apparatus are disclosed in Japanese Patent Publication No. 52-37919 and Japanese Patent Laid-Open No. 59-115231. In the former device, the peeled label is blown off to the suction belt side by the jetted gas and is sucked by the suction belt. Also,
In the latter device, the peeled label is directly adsorbed by the adsorption belt.

[0003]

However, the Japanese Patent Publication Sho 52
In the label sticking device disclosed in Japanese Patent No. 37919,
Depending on the strength and direction of the ejected gas, the label may not be blown to a predetermined position and may not be adsorbed to a predetermined position of the suction belt. In addition, JP-A-59-11523
Even in the label printing / pasting apparatus disclosed in No. 1, the label may hang down due to the weight of the label or the like, and the label may not be attracted to a predetermined position of the attraction belt. If the label is not attracted to the predetermined position of the suction belt in this way, the label cannot be accurately attached to the predetermined position of the adherend.

Therefore, a main object of the present invention is to provide a label sticking device capable of sucking a label at a predetermined position of a suction belt.

[0005]

According to the present invention, there is provided a peeling means for peeling a label, which has an adhesive layer formed on its back surface and is temporarily attached to a peeling mount, from the peeling mount, and a label peeled by this peeling means. Labeling including a suction belt for sucking the surface of the label and transferring the label to the adherend side, and a holding roller for holding the label peeled by the peeling means in cooperation with the suction belt. It is a device.

[0006]

The label is peeled off from the peeling mount by the peeling means. The surface of the peeled label is adsorbed by the adsorption belt. Further, the label is held between the suction belt and the holding roller. Then, the label is transferred to the adherend side by the suction belt.

[0007]

According to the present invention, since the peeled label is sandwiched between the suction belt and the sandwiching roller, the label can be attracted to a predetermined position of the suction belt regardless of the weight of the label. .. Therefore, the label can be accurately attached to a predetermined position of the adherend regardless of its own weight or the like.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the detailed description of the embodiments below with reference to the drawings.

[0009]

FIG. 1 is an illustrative view showing one embodiment of the present invention. The label sticking apparatus 10 includes a conveyor 20 as a carrying means for carrying the pasting object 1 in one direction (rightward in the state shown in FIG. 1) at a constant speed.

A label supply unit 30 is provided above the conveyor 20. The label supply unit 30 includes a base 32.

A holding reel 34 is attached to the top of the base 32. The holding reel 34 is used for the label continuum 2
To hold the roll in a roll shape. In this embodiment, the label continuum 2 includes a strip-shaped release liner 3 having a release agent layer formed on one main surface thereof, and the release agent layer of the release liner 3 is spaced apart in its longitudinal direction. Multiple labels 4,
4, ... Are temporarily attached by the adhesive layers 5, 5 ,.
Further, on the surface of the label 4, a thermosensitive color developing agent layer is formed in which the heated portion develops color.

Below the holding reel 34, the base 32 is provided with three guide rollers 36a, 36b and 36c. These guide rollers 36a to 36c are
It is for guiding the label continuum 2.

A label detector 38 is provided on the base 32 below these guide rollers. The label detector 38 is for detecting the presence or absence of the label 4 in the label continuum 2.

Further, a printing machine 40 is provided on the base 32 on the downstream side of the label detector 38 when viewed in the conveying direction of the adherend 1. The printing machine 40 has two thermal heads 40a and 40b. These thermal heads 40a and 40b are for causing the thermosensitive color developing agent layer on the surface of the label 4 to develop color as an indication of characters, bar codes, or the like.

Further, the base 32 is provided with a peeling device 42 having a triangular cross-section as a peeling means on the downstream side of the printing machine 40 as viewed in the transport direction of the adherend 1. This peeler 42 is
The peeling mount 3 of the label continuum 2 is rapidly folded back to peel off the label 4 from the peeling mount 3.

Further, on the base 32, the peeling device 42, the printing machine 40 and the label detector 3 are viewed in the conveying direction of the adherend 1.
Three guide rollers 44a, 44b and 44c are provided on the upstream side of 8. These guide rollers 44a-
44 c is for guiding the release liner 3 of the label continuum 2.

A take-up reel 46 is provided on the base 32 above the guide rollers 44a to 44c. The take-up reel 46 is for taking up the release liner 3 of the label continuum 2 and is connected to a motor (not shown) for rotating it.

On the other hand, above the conveyor 20, a label transfer section 50 is provided on the downstream side of the label supply section 30 in the transport direction of the adherend 1. The label transfer unit 50 includes a base 52 fixedly provided on the base material 32 of the label supply unit 30.

A drive roller 54 is provided on the base 52 on the downstream side of the peeling device 42 of the label supply section 30 as viewed in the conveying direction of the adherend 1. The drive roller 54 is used by the peeling device 4
It is placed above the label 4 peeled off in 2. The drive roller 54 is connected to a motor 58 via a belt 56, as shown in FIGS. 2 and 3. Therefore, the drive roller 54 can be rotated by the motor 58. In this embodiment, the drive roller 54 is rotated counterclockwise in the state shown in FIG.

Further, one end of a support arm 60 is rotatably supported by the shaft of the drive roller 54. The support arm 60 is hung on the base 52 by a spring 62 so that the other end thereof does not come into contact with the conveyor 20, as shown particularly in FIGS. 1 and 2.

At the other end of the support arm 60, the pressing roller 6
4 is rotatably mounted. And the drive roller 5
4 and the pressing roller 64 include three suction belts 66.
a, 66b and 66c are spaced apart as shown in FIG. Therefore, when the drive roller 54 is rotated, the pressure roller 6 is moved together with the suction belts 66a to 66c.
4 can be rotated. These suction belts 66a-6
The speed at which 6c is rotated can be freely set by the motor 58, but is set at a speed suitable for sticking the label 4 on the adherend 1 conveyed by the conveyor 20. This speed is preferably the same as the speed at which the adherend 1 is conveyed or a speed slightly lower than that speed.

A suction fan 68 is provided on the upper surface of the support arm 60 on the other end side, as shown in FIGS. The suction fan 68 is for generating a suction force between the suction belts 66a to 66c from the center to the other end of the support arm 60.

Further, a first support member 70 is attached to the lower surface of the support arm 60 on one end side. in this case,
The first support member 70 is fixed to the support arm 60 with, for example, screws 71, as shown in FIG.

A second support member 72 is provided on the first support member 70. In this case, the first support member 70
And between the second support member 72 and FIG.
, Four springs 74 are arranged at intervals in a two-row, two-column arrangement, for example. Then, the pins 76 are respectively inserted into the second support member 72, the spring 74, and the first support member 70, and ring-shaped washers 78 are fitted to the lower ends of the pins 76, respectively. Therefore, the second support member 72 is supported from below by the four springs 74 with respect to the first support member 70.

The second support member 72 has five nipping rollers 80a, 80b, 80, as shown in FIG.
c, 80d and 80e are rotatably supported. In this case, the nipping rollers 80a-80e
Are arranged at intervals in the rotation direction of the suction belts 66a to 66c and opposite to the suction belts 66a to 66c. In particular, the nip roller 80a is the driving roller 54a.
Are arranged to face each other.

As shown in FIG. 3, each of the sandwiching rollers 80a-80e has a plurality of tapered projections 82 on its side surface. These protrusions 82 are formed so as to be spaced apart in the axial direction of the nipping rollers 80a to 80e and to circulate the side surfaces of the nipping rollers 80a to 80e. Therefore, these nipping rollers 80a-80e
Is the suction belts 66a to 66a only at the tip of the protrusion 82.
Contact 6c.

Next, the operation or operation of the label sticking apparatus 10 will be described. First, the label continuum 2 is held by the holding reel 34 of the label supply unit 30. The label continuum 2 is guided to the peeler 42 side via the guide rollers 36a to 36c, the label detector 38, and the printer 40. The peeling mount 3 of the label continuum 2 is the peeling device 42.
It turns back sharply. Then, the folded backing mount 3 is wound by the take-up reel 46 via the guide rollers 44a to 44c.

By winding the peeling mount 3 of the label continuum 2 with the take-up reel 46, the label 4 of the label continuum 2 is detected by the label detector 38 and then the printing machine 40.
Be led to. In the printing machine 40, the two thermal heads 4
With 0a and 40b, the thermosensitive color developing agent layer on the surface of the label 4 is colored as an indication such as a character or a bar code.

Then, the peeling mount 3 of the label continuum 2 is suddenly folded back by the peeling device 42, whereby the label 4
Are peeled from the peeling mount 3. Peeled label 4
Are supplied to the label transfer unit 50 side.

In the label supply section 50, the drive roller 54, the suction belts 66a to 66c, and the pressing roller 64 are rotated by the motor 58. In this case, the nip roller 80
Since a to 80e are in contact with the suction belts 66a to 66c, the nipping rollers 80a to 80e also rotate.

The label 4 supplied from the label supply unit 30 has the suction belts 66a to 66c and the nipping roller 8.
It is sandwiched between 0a to 80e and transferred from one end of the support arm 60 to the center. In this case, the adhesive layer 5 of the label 4
Makes point contact or line contact only with the tapered protrusions 82 on the side surfaces of the nip rollers 80a-80e. Therefore, the label 4 is not adhered to the holding rollers 80a to 80e and does not shift from the suction rollers 66a to 66c.

The label 4 is separated from the nip rollers 80a-80e at the center of the support arm 60, but is sucked onto the suction belts 66a-66c by the suction force generated between the suction belts 66a-66c by the suction fan 68. To be done. Then, the label 4 is transferred to the other end of the support arm 60 while being sucked by the suction belts 66a to 66c.

On the other hand, the adherend 1 is transferred below the label transfer section 50 by the conveyor 20. Therefore, the label 4 attached to the adsorption belts 66a to 66c is attached to the upper surface of the article to be attached 1. In this case, the label 4 is pressed from above by the pressing roller 64 of the label supply unit 50.

In this label sticking apparatus 10, the peeling mount 3
The label 4 peeled off from the suction belt 66a to 66c
And the holding rollers 80a to 80e, the suction belts 66a to 80e do not hang down due to their own weight.
It is adsorbed to a predetermined position of 66c. Therefore, in this label sticking device 10, the label 4 can be stuck accurately to a predetermined position of the adherend 1.

Further, in this label sticking apparatus 10, since the other end of the support arm 60 swings up and down, that is, the suction belts 66a to 66c swing up and down on the pressing roller 64 side, the heights are different. The label 4 can be attached to an adherend or an adherend whose top surface is not flat.

In the above-mentioned embodiment, a printing machine having a thermal head is used to give an indication on the surface of the label 4, but a printing machine having a relief plate is used instead of such a printing machine. Good. In this case, the thermosensitive color developing agent layer may not be formed on the surface of the label 4.

When the label 4 is to be displayed on the surface thereof, the label, that is, the label continuum may be temporarily stopped so that the display does not collapse.

Further, in the above embodiment, the conveyor speed and the suction belt rotation speed are set to be constant, but the conveyor speed is made variable and the suction belt rotation speed is controlled by the conveyor speed. Good.
In this case, the speed of the conveyor can be determined from the number of pulses generated by the encoder and the time elapsed between the encoders, for example, by providing an encoder that generates a number of pulses corresponding to the distance that the adherend is conveyed by the conveyor. it can.

Further, in the above-mentioned embodiment, the three suction belts are arranged at intervals and the suction force is generated between the suction belts. However, one wide suction belt has a plurality of holes. May be formed to generate suction force in those holes.

Further, in order to generate the suction force on the suction belt, the suction fan is used in the above-mentioned embodiments, but a negative pressure source such as a vacuum pump may be used instead of the suction fan.

Further, in the above-mentioned embodiment, the first support member 7
0, the support arm 60 is fixed by a screw 71, but instead of fixing it by a screw, one end of a substantially S-shaped operation member 84 is rotatable on the side portion of the support arm 60 as shown in FIG. A C-shaped fitting ring 86 is rotatably attached to the center of the operating member 84, and a hook 88 is formed on the side portion of the first supporting member 70 so that the operating member 84 can be fitted in a raised state. The first support member 70 may be fixed to the support arm 60 by fitting the wheel 86 into the hook 88 and then tilting the operation member 84. Thus, the first support member 70
If the first support member 70 is fixed to the support arm 60, the first support member 70 can be easily removed from the support arm 60 only by raising the operating member 84, and, for example, the holding rollers 80a to 80e can be easily maintained and inspected.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a front view solution diagram showing a main part of the embodiment shown in FIG.

3 is a side view solution diagram showing a main part of the embodiment shown in FIG. 1. FIG.

FIG. 4 is an essential part schematic view showing a modified example of the fixing structure of the support arm and the first support member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adhered material 2 Label continuum 3 Peeling mount 4 Label 5 Adhesive layer 10 Label sticking device 20 Conveyor 42 Peeler 54 Drive roller 60 Support arm 62 Spring 64 Pressing roller 66a, 66b, 66c Adsorption belt 68 Suction fan 80a, 80b , 80c, 80d, 80e nip roller 82 protrusion

Claims (1)

[Claims] 1. A peeling means for peeling a label, which has an adhesive layer formed on the back surface thereof and is temporarily attached to a peeling mount, from the peeling mount, and the label peeled by the peeling means by adsorbing the surface of the label. A label sticking apparatus including a suction belt for transferring the label to the adherend side, and a holding roller for holding the label peeled by the peeling means in cooperation with the suction belt.