JPH018498Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for attaching a label containing the manufacturer's name, date of manufacture, etc. to the bottom surface of a plastic container such as a plastic tray.

The present invention consists of a transport conveyor on which objects to be pasted, such as plastic containers to which labels are to be pasted, are placed and transported; A pasting conveyor for placing and conveying the pasted body is provided, and between the conveying conveyor and the pasting conveyor, the label is peeled off from a release sheet to which the label is temporarily attached, and only the label is pasted. A label peeling device is installed that protrudes from the tip of the label, and high-pressure air is blown from a nozzle to affix the label with the adhesive layer side of the peeled label facing the main surface of the object to be affixed. , and is configured to accompany the object to be adhered and the conveyor for conveying the adhesive.

The main purpose of this invention is to control the posture of labels with curls by blowing high-pressure air so that the adhesive layer side of the peeled label faces toward the object at the top, and It is an object of the present invention to provide a label sticking device that can stick a label to the bottom surface of a sticking body, and can stick a large amount of labels accurately to the bottom surface of a plastic container, etc. without causing any misalignment. It is something to do.

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

FIG. 1 is a side view of the main parts of a label pasting device which is an embodiment of the present invention, and FIG. 2 is a plan view thereof.

Reference numeral 1 designates an endless annular conveyor, on which an object to be adhered A such as a plastic tray is placed and conveyed.

2 is a driving belt vehicle that rotates the conveyor 1.

Reference numeral 3 denotes a bonding conveyor 3 adjacent to the conveyor 1 at an appropriate interval, and the bonding conveyor 3 has an endless ring shape and is stretched in parallel to a driving belt vehicle 4 at a predetermined interval. There is.
The adhering conveyor 3 is spaced apart from the conveyor 1 to the extent that the adhered object A sent from the conveyor 1 does not fall, and is approximately the same as the conveyor 1. The conveyor 1 is formed to have a large height, and is used to place and convey the adherends A sent from the conveyor 1 provided in a straight line, and a belt 5 is stretched over the conveyor 1.

6 is a label peeling device provided between the transport conveyor 1 and the adhesion transport conveyor 3. As shown in FIG. 1, the label 101 is supported in a releasable manner by a highly flexible release sheet 102, and has an adhesive layer 103 formed by applying a pressure-sensitive adhesive or the like to the back surface, that is, the side of the release sheet 102. A release sheet 102 is temporarily attached to the side, and the label 101 is peeled off from the release sheet 102 by the label peeling device 6. That is, release sheet 1
02 is wound around a rotatably fixed supply reel (not shown) in the present label peeling device 6, and is wound around a guide roller 7.
The film is then fed to the front edge of the peeling guide 8 and then to a take-up reel (not shown). In this way, the release sheet 102 supporting the label 101
While being wound up from the supply reel and moving, as shown in FIG. 1, the path of the release sheet 102 suddenly changes as it passes the front edge of the acute-angled release guide 8, and the release sheet 102 becomes flexible. Because of this, it is bent at the front edge of the peeling guide 8 and moves in the opposite direction.
The label 101 is sequentially rolled up by the take-up reel, but since the label 101 is made of a relatively rigid material, it is peeled off from the release sheet 102 and continues straight.
It is formed so as to protrude from the tip of the adhesive conveyor 3.

As the adhesive conveyor 3 rotates, the label 102 moves upward together with the adhesive conveyor 3 with its adhesive layer 103 side facing upward, but between the conveyor 1 and the adhesive conveyor 3. High pressure air is blown from the nozzle 9 provided in the
The label 101 is attached to the belt 5 of the conveyor 3.
Press it to bring it into close contact with the belt 5.

That is, the nozzle 9 is provided at a position lower than the upper surface of the sticking conveyor 3 and higher than the position where the release sheet 102 of the label peeling device 6 changes its path, so that the adhesive layer 103 side of the peeled label 101 is It blows high-pressure air toward the adherend A side located at the top, and is blown by high-pressure air sent to the nozzle 9 through a conduit by an air compressor or high-pressure air source (not shown). The label 101 is brought into close contact with the belt 5.

As a result, the adhesive of the label 101 that is pressed by the adhesive conveyor 3 and attached to the lower surface of the object A to be adhered which is transferred by the conveyor 1 and then placed on the adhesive conveyor 3 and transferred. The adhesive layer 103 side is in contact with the adhesive layer 1 at the appropriate position on the adherend A.
The label 101 is attached to the 03 side.

Note that the conduit 10 for introducing air from an air compressor or high-pressure air source to the nozzle 9 may be introduced from the side as shown in FIG. 1, or may be introduced from the side as shown in FIG. It may also be guided toward the adhesive conveyor 3' through the gap between them.

In addition, the belt 5 is charged with a machine that generates electric charge by friction or electrostatic induction using an easily charged object as the belt 5, and the belt 5 is charged with static electricity.
The label 101 may be adsorbed onto the belt 5.

The present invention is configured as described above, and the label is supplied from the label peeling device installed between the conveyor and the adhesive conveyor to the tip of the adhesive conveyor, and is applied to the belt surface of the adhesive conveyor. Since the structure is such that the label is attached to the bottom surface of the object to be affixed in close contact with each other, the label is taken out while the object to be affixed is sequentially transported by a conveyor, and the bottom surface of the object to be affixed is affixed. Labels can be attached to. As a result, the work of applying labels to the bottom of the object to be applied becomes extremely efficient, and the label can be applied to the bottom of the plastic tray, etc., during the delivery process of the plastic tray containing the product, making it extremely efficient. It's convenient. Furthermore, the label can be accurately pasted without causing any misalignment of the label pasting position.

The present invention has excellent effects as described above.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of a label sticking device according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a plan view of a modified example. 1, 1'... conveyor, 2... driving belt vehicle, 3, 3'... adhesive conveyor, 4
...Driving belt vehicle, 5, 11... Belt, 6... Label peeling device, 7... Guide roller, 8... Peeling guide, 9... Nozzle, 10...
conduit.

Claims (1)

[Scope of Claim for Utility Model Registration] A transport conveyor on which an object to be pasted with a label is placed and conveyed, and a connection between the transport conveyor and the object to such an extent that the object to be applied that is sent from the transport conveyor does not fall. a pasting conveyor, which is spaced apart from each other and is formed at approximately the same height as the conveyor, and on which the object to be adhered sent from the conveyor is placed and conveyed; and the conveyor and the pasting conveyor. Between the conveyor and the conveyor, the path of the release sheet on which the label is temporarily attached is moved in the opposite direction, and only the label is moved straight, and the label is peeled off from the release sheet and projected onto the object to be adhered. A label peeling device is provided at a position lower than the top surface of the sticking conveyor and higher than a position where the release sheet changes its path in the label peeling device, and the adhesive layer side of the peeled label is placed on the upper surface of the label peeling device. The label includes a nozzle that blows high-pressure air toward the object to which it is attached, and is configured to bring the peeled-off label into close contact with the main surface of the object to be adhered to, so that it travels along with the object to be affixed and the adhesion conveyor. A label pasting device characterized by: