JPH0226803Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for attaching labels to the top or bottom of plastic containers such as lightweight plastic trays.

The conventional label pasting device, as shown in Fig. 3,
The peeling mount 102 to which the label 101 is temporarily attached is folded back at its tip, and the peeling plate 103 for peeling the label 101 from the peeling mount 102 is placed at a shallow angle to the object 104 to which the label 101 is attached. It was set up. However, the object 104
Glue the tip of the label 101 to the object 104
At the same time, the peeling mount 102 is also sequentially advanced to peel off the label 101 and extend it to the object 104. If the label 101 is not to be attached to the object 104, the adhesive 10 on the back side of the label 101 will be removed.
Due to the adhesive force of No. 5, an excessive force is applied in the opposite direction to the traveling direction, and in the case of a lightweight object 104, the progress of the object 104 may stop or become slower than a predetermined speed. There was an inconvenience.

Thus, the label 1 is placed at a predetermined position on the object 104.
01, the traveling speed of the peeling mount 102 and the traveling speed of the object 104 to be pasted are almost the same, and the label 101 is drawn out in accordance with the advancing speed of the object 104 to be pasted, or In order to prevent the kimono 104 from being pulled in the opposite direction, the adhesive force of the adhesive 105 is weakened to prevent the adhered object 104 from becoming stagnant.
However, if these conditions are not met and the speed is different or the adhesive strength is too strong, the above-mentioned drawbacks will be exposed.

As a result of various studies, the inventor of the present invention has found that the force required for peeling differs when the direction in which the label is peeled from the release sheet differs. In other words, the force required to pull the label in a direction perpendicular to the surface of the release sheet is extremely smaller than the force required to pull the label in the longitudinal direction of the release sheet and peel off the label. I found it.

The present invention was developed under these circumstances, and it is possible to apply a label to an accurate position on an object, regardless of the correlation between the speed of movement of the object and the speed of movement of the peelable mount. It is an object of the present invention to provide a labeling device that can efficiently affix a label to an object at a predetermined speed.

Hereinafter, the present invention will be explained in detail according to embodiments shown in the drawings.

Reference numeral 1 denotes an endless annular conveyor, on which an adherend A such as a lightweight plastic tray is placed and conveyed.

2 is a label to be attached to the object A, and an adhesive layer 3 formed by applying a pressure-sensitive adhesive or the like is formed on the back side of the label. A continuous body of labels 2 is formed by temporarily adhering to a rich release sheet 4.

Then, the label 2 temporarily attached to the release sheet 4 is removed from the release sheet 4 by the present label peeling device 5.
It is peeled off from the That is, the label 2 supported by the release sheet 4 is wound onto a rotatably fixed supply reel 6 in the present label peeling device 5, passes through a guide roller 7, and is then wound onto the front edge of the release plate 8, and then onto the front edge of the peeling plate 8. It is supplied to the take-up reel 9 and sent. In this way, while the release sheet 4 supporting the label 2 is being wound up from the supply reel 6 and moving, as shown in FIG. is suddenly changed, and since the release sheet 4 is highly flexible, it is bent at the front edge of the release plate 8, moves in the opposite direction, and is sequentially rolled up by the take-up reel 9, but the label 2 Since it is made of a relatively rigid material, it is formed so that it can be peeled off from the release sheet 4 and go straight as it is.

The peeling plate 8 for peeling off the label 2 from the release sheet 4 has an acute-angled tip as shown in FIG. 2, and the release sheet 4 is bent at the acute-angled tip 10. The surface in sliding contact with the back surface of the release sheet 4 to which the release sheet 4 is temporarily attached is composed of a preliminary release surface 12 forming an obtuse angle with the unreleased surface 11 and a release surface 13 forming an acute angle with the preliminary release surface 12.

That is, the leading edge of the label 2 that has been sent in sliding contact with the unpeeled surface 11 and in close contact with the release sheet 4 touches the release sheet 4 at the top 14 of the boundary between the unpeeled surface 11 and the preliminary peeled surface 12. The unpeeled surface 11 and the preliminary peeled surface 12 are formed continuously so that the surface is slightly bent and partially peeled off.

Then, label 2 whose tip has been slightly peeled off
The preliminary release surface 12 on which the back surface of the release sheet 9 to which has been temporarily attached is in sliding contact is
It is formed at a deep angle (approximately 75° to 90°) close to vertical.

Therefore, with respect to the traveling direction of the adhered object A, approximately
The label 2, which has advanced at an angle of 80 degrees, is bent at the tip 10 of the peeling plate 8, and is peeled off from the peeling sheet 4, which is traveling in the opposite direction.
The label 2 continues straight ahead, and its tip sticks to the surface of the object A, and as the object A advances, it is gradually peeled off from the release sheet 4, and the label 2 is bent and attached to the surface of the object A. It gets stuck.

At this time, the preliminary release surface 1 of the release plate 8 is
Since the angle between the label 2 and the traveling direction of the adhered object A is increased, the label 2 is pulled in the direction in which the force required for peeling is extremely small compared to the case where the label 2 is pulled in the traveling direction of the release sheet 4 and peeled off. will be done,
This makes it possible to eliminate various drawbacks of conventional products in which a large load is applied in the direction opposite to the progress of the object to be adhered when the label is peeled off.

Since the present invention is configured as described above, when attaching a label to an object, even if the object is lightweight, the object will not be pulled back toward the release sheet. There is no slipping on the conveyor belt. Furthermore, the advancing speed of the release sheet and the advancing speed of the object to be adhered are not the same, and different speeds can be selected, and the label can be adhered to a predetermined position.

Therefore, even if the traveling speed of the label continuum and the traveling speed of the object to be pasted deviate from the expected speed, or an unexpected situation occurs, the label can be pasted at the correct position. .

The present invention has extremely excellent effects as described above.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of the present invention. FIG. 2 is an illustrative diagram of its main parts. FIG. 3 is an explanatory diagram of a conventional example. DESCRIPTION OF SYMBOLS 1... Conveyance conveyor, 2... Label, 3... Adhesive layer, 4... Release sheet, 5... Label peeling device, 6... Supply reel, 7... Guide roller, 8
... Peeling plate, 9 ... Winding reel, 10
...Tip portion, 11...Unpeeled surface, 12...Preliminary peeled surface, 13...Peeled surface, 14...Top portion.

Claims (1)

[Scope of utility model registration request] A continuous body of labels, in which labels are temporarily attached to the main surface of a release sheet using an adhesive layer formed on the back surface thereof, is sequentially moved, and during this time, the movement path of the release sheet is suddenly changed by a release plate. In a label pasting device that peels off a label from a release sheet and affixes the peeled label to a moving object near the edge of the peeled label, the peeling plate is used to peel off the part of the label that has not been peeled off. An unpeeled surface in contact with the sheet, a preliminary peeled surface formed continuously on the unpeeled surface, and a peeled surface formed continuously on the preliminary peeled surface and in contact with the release sheet from which the label has been completely peeled off. The preliminary peeled surface makes an obtuse angle with the unpeeled surface, and the peeled surface makes an acute angle with the preliminary peeled surface, and the angle that the preliminary peeled surface makes with a line segment in the traveling direction of the adhered object becomes large. A labeling device characterized in that it is formed as follows.