JP2633719B2 - Label sticking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION (Industrial application field) The present invention relates to a device for attaching a label to the lower surface of a so-called raised bottom type adherend in which a part of a container such as a plastic tray is depressed. Things.

(Prior Art) As an apparatus for attaching a label to the lower surface of a plastic container or the like, there is an apparatus as shown in FIG.

In this conventional example, high-pressure air is blown from a nozzle 1 to control the attitude of a label 3 having a curl, etc. Is a label sticking apparatus for sticking a label 3 to a label.

(Problems to be Solved by the Invention) In this conventional label sticking apparatus, the label can be stuck on the bottom surface of the adherend by controlling the attitude of the label having curl or the like, but the bottom surface is upward. In the case of an up-bottom type adherend that is recessed in the label, the label is accurately guided to the bottom because the bottom of the adherend is located at a position where the leading end of the label is farther from the supply position of the label supply device. Therefore, the label cannot be stuck at the correct position.

Therefore, a main object of the present invention is to provide a label sticking apparatus capable of accurately sticking a label supplied from a label supply apparatus to a lower surface of an adherend.

(Means for Solving the Problems) According to the present invention, a gap is provided between a first transport conveyor for placing and transporting an adherend to which a label is to be attached, and a first transport conveyor; A second transport conveyor that is formed at substantially the same height as the first transport conveyor, and that mounts and transports the adherend sent from the first transport conveyor, and supplies a label to the adherend. A label attaching device including a label feeding device that is formed between the first transport conveyor and the second transport conveyor so as to reach a position higher than the upper surface of the transport conveyor from near the label supply portion of the label supply device. A guide body for guiding the label supplied from the label supply device to the bottom portion of the adherend, the guide body having a length reaching the bottom portion of the adherend from the vicinity of the label supply unit, and a label. Slide A label sticking device having a guide surface for guiding and having elasticity.

(Function) In the label sticking apparatus of the present invention, an elastic guide body is formed near or near the bottom surface of the adherend by the vicinity of the label supply portion of the label supply apparatus, and the label is formed of the guide body. Is guided to the sticking position by sliding on the surface.

(Effect of the Invention) According to the present invention, a guide body is formed from the vicinity of the label supply portion of the label supply device to the bottom surface of the adherend or to the vicinity thereof, and the label slides on the surface of the guide body. Since the guide is guided to the attaching position, the label can be accurately attached to the bottom surface of the adherend. In particular, according to the present invention, if the guide body is formed so as to reach the bottom surface of the so-called raised bottom type adherend whose lower surface is concave at the center or the like, the guide body has elasticity.
Even in the case of a raised bottom type adherend, the guide body presses the label toward the adherend, and the label can be accurately adhered to the bottom surface of the adherend.

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

(Embodiment) FIG. 1 is an illustrative view showing a main part of a label sticking apparatus according to one embodiment of the present invention.

FIG. 2 is a perspective view showing the upper part of the example shown in FIG.
FIG. 3 is an illustrative view showing the upper part of the example shown in FIG.

The label sticking apparatus 10 is provided with an endless annular first conveyor 12 on which an adherend A such as a plastic tray is placed and transported thereon, and a suitable interval between the first conveyor 12 and the first conveyor 12. And an endless annular second transport conveyor 14 for placing and transporting the adherend A sent from the first transport conveyor 12 adjacent thereto. First conveyor 12
The belt 16 wrapped around the endless ring is rotated by a driving belt wheel 18 and the second conveyor
A belt 20, which is also an endless ring and is stretched in parallel at a predetermined interval, is rotated by a driving belt wheel 22.

The second conveyor 14 is provided with the first conveyor 12.
To the extent that the adherend A sent from
At a distance from the first conveyor 12 and the first
Is formed at substantially the same height as the conveyor 12 of the first embodiment, and is formed so as to place and transport the adherend A sent from the first conveyor 12 provided substantially in a straight line. .

The first transport conveyor 12 and the second transport conveyor
A label supply device 24 for supplying a label is provided below the unit 14.

Label 100 supplied by this label supply device 24
As shown in FIG. 1, the release sheet 102 having high flexibility
Pressure-sensitive adhesive or the like applied to the back surface, that is, the release sheet 102 side, of the pressure-sensitive adhesive layer 104.
Side is temporarily attached to the release sheet 102, and the label 100
Is peeled off from the release sheet 102 by the label supply device 24 and supplied upward.

In the label supply device 24, a continuous body of the label 100 supported by the release sheet 102 is loaded on a supply reel (not shown) which is wound and rotatably fixed, and a guide roller (not shown) is provided. The label 10 is supplied between the thermal head 26 for printing on the label 100 and the platen roller 28, and is thermally colored by the thermal head 26.
0 is supplied to the leading edge of the release guide 30 along with the transfer of the release sheet 102, and only the release sheet 102 has the tension roller 3
2 and is supplied to a take-up reel (not shown).

In other words, the label supply device 24 adjusts the front edge of the acute-angled peeling guide 30 as shown in FIG. 1 while the release sheet 102 supporting the label 100 is unreeled from the supply reel and transitions. When passing, the path is suddenly changed, the release sheet 102 is bent at the leading edge of the release guide 30 because of its flexibility, and transitions in the opposite direction,
On the other hand, since the label 100 is made of a relatively rigid substance,
It is formed so as to be peeled off from the release sheet 102, to go straight as it is, and to protrude upward between the first conveyor 12 and the second conveyor 14.

It is formed above the leading end of the label 100 supplied from the label supply device 24, between the first transport conveyor 12 and the second transport conveyor 14, and at a position lower than the upper surface of both the transport conveyors 12 and 14. Auxiliary roller 34
Is formed.

On the second conveyor 14 side of the auxiliary roller 34, a guide body 38 for guiding the label 100 supplied in contact with the auxiliary roller 34 toward the lower part of the adherend A is formed.

The auxiliary roller 34 operates the label supply device 24 to operate the drive source (not shown) of the label supply device 24 that operates to transfer the release sheet 102 and cause only the label to protrude upward from the release guide 30. In synchronization with this, it is formed so as to rotate in the counterclockwise direction in FIG. 1, that is, in the feed direction of the label 100, at a speed slightly higher than the feed speed of the release sheet 102.

The auxiliary roller 34 comes into contact with the pressure-sensitive adhesive layer 104 of the label.
In order to prevent the roller from adhering to the auxiliary roller 34, a convex ridge 42 having a slightly larger diameter than the outer peripheral edge of the cylindrical roller body 40 and having a sharp angle at its tip is continuously formed around the roller body 40. It is formed.

On the other hand, the guide body 38 is formed of a resilient spring material, and is attached to the main body of the label sticking apparatus 10 so that the guide body 38 always comes into light contact with the tip of the ridge 42 of the auxiliary roller 34. In this embodiment, the guide body 38 projects slightly upward from the upper surface of the second transport conveyor 14 and is slightly inclined toward the transfer direction of the adherend A from a portion that comes into contact with the auxiliary roller 34. As it approaches the lower part of the adherend A, it is curled so as to follow the lower surface of the adherend A, and is formed in a substantially bow shape as a whole.

In this embodiment, several projections 42 of the auxiliary roller 34 are formed, and correspondingly, the same number of guides 38 are formed.

Since the auxiliary roller 34 comes into contact with the adhesive layer 104 of the label 100, the ridge 42 is formed. However, the adhesive may slightly adhere to the ridge 42 of the auxiliary roller 34. Therefore, in order to improve the releasability of the auxiliary roller 34, a release agent applying member
44 are formed.

The release agent applying member 44 is provided such that a sponge 46 containing a release agent such as silicon is in contact with the auxiliary roller 34 and also serves as a cleaning function of the auxiliary roller 34. As shown in FIG. 4, it is detachably formed so that the cleaning and supply of the release agent can be performed.

In this embodiment, a sponge 46 is attached to a support plate 48 and is slidably attached to a support member 49 formed on the main body.

The label sticking roller 50 is rotatable between the first conveyor 12 and the second conveyor 14 at a position slightly higher than the auxiliary roller 34 and at substantially the same height as the upper surface of the second conveyor 14. Is formed.

The label sticking roller 50 is formed so as to be able to contact the lower surface of the adherend A at its thickest portion. In this embodiment, when the guide body 38 contacts the lower surface of the adherend A. The guide body 38 is sunk to the same height as or slightly lower than the top surface of the label sticking roller 50 so that the body A to be stuck does not float upward.
Are formed in the same number as the number of the guide bodies 38.

The guide body 38 has an upper portion that is the second transport conveyor 14.
Is formed so as to protrude upward from the upper surface.
Therefore, even if the container A is a so-called raised bottom type container in which the lower surface of the adhered body A is concave at the center or the like and does not contact the highest position of the label attaching roller 50, the adhered body is covered by the guide body 38. The label 100 can be guided to the raised bottom portion of the bonded body A and can be bonded.

In the label sticking apparatus 10, since the auxiliary roller 34 and the label sticking roller 50 are provided between the first transport conveyor 12 and the second transport conveyor 14, the first transport conveyor 12 and the second Considering a case in which the adherend A is slightly shorter than the distance between the conveyors 14 and is shorter than the distance between the conveyors, even in such a case, the adherend A Transfer roller 54 so that it does not tilt
Are formed.

The transfer roller 54 is formed so as to be rotatable in the width direction of the first transport conveyor 12, and between the first transport conveyor 12 and the second transport conveyor 14, the label sticking roller 50 and the first transport conveyor 12 are provided. Are formed so that their upper surfaces are located at approximately the same height.

[Brief description of the drawings]

FIG. 1 is an illustrative view showing a main part of a label sticking apparatus according to one embodiment of the present invention. FIG. 2 is a perspective view showing the upper part of the example shown in FIG. 1, and FIG. 3 is an illustrative view showing the upper part of the example shown in FIG. FIG. 4 is an illustrative view showing a release agent applying member. FIG. 5 is an illustrative view showing a conventional example. In the figure, 10 is a label sticking device, 12 is a first conveyor, 14 is a second conveyor, 16 and 20 are belts,
18 and 22 are driving belt vehicles, 24 is a label supply device, 26 is a thermal head, 28 is a platen roller, 30 is a peeling guide, 32 is a tension roller, 34 is an auxiliary roller, 36
Is a guide member, 38 is a guide body, 40 is a roller body, 42 is a ridge, 44 is a release agent applying member, 46 is a sponge, 48 is a support plate,
49 is a support member, 50 is a label sticking roller, 52 is a circumferential groove, 54 is a transfer roller, 100 is a label, 102 is a release sheet, 104
Indicates an adhesive layer.

Claims (1)

(57) [Claims] 1. A first transport conveyor for placing and transporting an adherend on which a label is to be attached, and an interval between said first transport conveyor and said first transport conveyor. A second conveyor that is formed at substantially the same height, and that mounts and transports the adherend sent from the first conveyor, and a label supply device that supplies labels to the adherend. In the label sticking device including, between the first transport conveyor and the second transport conveyor, formed so as to reach a position higher than the upper surface of the transport conveyor from near the label supply portion of the label supply device, the label A guide body that guides the label supplied from the supply device to the bottom portion of the adherend is provided, and the guide body has a length reaching the bottom portion of the adherend from the vicinity of the label supply unit. Sliding contact Has a guide surface that guides to, and has a resilient, label sticking device.