JPH0431931B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for attaching a stretch label to the outer circumferential surface of a container.

[Conventional technology]

Conventionally, in order to attach a stretch label to the outer circumferential surface of a container such as a bottle, the inner diameter of the cylindrical stretch label is expanded to be slightly larger than the outer diameter of the container using a guide, and the container is stretched. After being inserted into the stretch label, the elastic return force of the stretch label is usually used to bring it into close contact with the container.

Figures 10 and 11 show an example of such a stretch label attachment device.

A ring-shaped hollow case a accommodates six guide plates b that can move toward the center through openings provided on its inner peripheral surface. The inner peripheral surface of each guide plate b is provided with upwardly facing claws c, and also near the outer periphery is provided with a hanging pin d.

e is an annular cam plate superimposed on the lower surface of the cam plate b, and six cam grooves f, which are cut at equal intervals in the circumferential direction and whose one end is inclined in the centripetal direction, are provided with the guide plate Pin d of b is slidably fitted.

When the cam plate e is rotated clockwise in FIG. 10, each guide plate b moves outward, and when the cam plate e is rotated in the opposite direction, each guide plate b moves in the centripetal direction.

Therefore, as shown by the imaginary line in Figure 11,
When the claw pieces c are moved inward and the stretch label g is fitted from the upper end of the claw piece c, and the claw pieces c are expanded, the diameter of the stretch label g is expanded, and its inner diameter is equal to that of the container. The diameter is larger than the outer diameter of h.

Next, insert the container h from below inside the claw c, and connect the upper end of the stretch label g and the container h.
It is held by a pair of left and right semicircular holders i.

When the container h is moved upward in this gripped state, the container h comes off from the claw piece c with the stretch label g still attached to the outer circumferential surface, and the stretch label g is moved by its own elastic restoring force. , the diameter is reduced and it comes into close contact with the container h.

[Problem that the invention seeks to solve]

In the method for attaching the stretch label described above, since the diameter of the stretch label g is increased by a large amount by the guide plate b, the stretch label g may be damaged or the printing ink may crack.

Furthermore, in the conventional stretch label mounting apparatus, a large force is required to expand the diameter of the stretch label, and the claws of the guide plate are likely to be damaged.

Furthermore, since a cam plate is used as the diameter expanding means, the diameter expanding operation takes time and the device becomes large.

[Means for solving problems]

The present invention aims to provide a method and apparatus for attaching a stretch label, which reduces the amount of diameter expansion of the stretch label, thereby reducing damage during attachment and improving the attachment speed. It is.

That is, the method for attaching a stretch label of the present invention involves inserting a cylindrical stretch label from below onto the outside of a plurality of flexible tongues in a guide device in which a plurality of flexible tongues are arranged in an annular manner. Holding the lower end of the label together with the tongue by a holding means, and inserting the container into the guide device from below, expand the stretch label along with the flexible tongue at the shoulder of the container. and the upper end of the container that has passed through the guide device is gripped by the gripping means together with the upper end of the stretch label, and then the stretch label is removed from the tongue by removing the container upward from the guide device. It is characterized in that it is attached to a container.

Furthermore, the stretch label attachment device according to the present invention includes a plurality of flexible tongues that face the direction of travel of the container and are inclined inward along the inner surface of the through hole provided in the substrate for allowing the container to pass through. A guide device arranged in an annular manner, a supply means for supplying the stretch label to the guide device, a holding means for holding the proximal end of the stretch label, and a container passing through the through hole to be attached to the stretch label. The container is characterized by comprising a gripping means for gripping the container together with the container, and a moving means for inserting the container into the through hole.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 9.

Reference numeral 1 denotes a soft drink container made of a synthetic resin material, which includes a body portion 1a having a cylindrical shape with a bottom, and a body portion 1a.
It consists of a small-diameter neck portion 1c connected to the upper end of the cap via a tapered portion 1b, and a cap 2 is placed over the opening at the upper end.

The upper half of the body portion 1a is a label attachment portion 1d with a slightly smaller diameter, and a shoulder portion 1 that slightly protrudes outward is provided at the boundary between the label attachment portion 1d and the tapered portion 1b.
e is formed.

The container 1 is placed on the upper surface of a suitable lifting means, for example a piston rod 3.

Reference numeral 4 denotes a horizontal base plate, in which a circular through hole 5 coaxial with the piston rod 3 is bored.

A guide device 7 consisting of six guide plates 6 arranged at equal intervals in the circumferential direction is provided on the inner peripheral edge of the through hole 5.

Each guide plate 6 has a single guide plate suspended from the substrate 4.
A horizontal shaft 8 passing through the pair of brackets 4a, 4a
An outward L-shaped mounting portion 6 whose intermediate portion is pivoted by
a, and a flexible tongue piece 6b made of soft synthetic resin, the lower end of which is fixed to the upper end of the mounting part 6a.

A horizontal hole 9 is bored in the inner circumferential surface 5a of the through hole 5 at a location facing the upper end of the vertical piece of the attachment portion 6a.

A compression coil spring 10 serving as a biasing means is housed in the horizontal hole 9 and biases the guide plate 6 inwardly of the circular hole 5 .

Reference numeral 11 denotes a holding means for the stretch label 13, that is, a label clamp, which is composed of a pair of left and right arms 11a and 11b that are semicircular in plan view.

Reference numeral 12 denotes a means for gripping the container 1, that is, a bottle clamp, which is composed of a pair of left and right arms 12a and 12b that are semicircular in plan view.

Next, a procedure for attaching the stretch label 13, which is made of a soft synthetic resin film, such as a polypropylene film, with printing on the outer surface, to the label attachment portion 1d of the container 1 will be explained.

The cylindrical stretch label 13 is placed on the label conveying tool 14, brought above the through hole 5, and then dropped. As shown in FIG. It is held by covering the lower outer peripheral surface of the tongue piece 6a.

Then, the piston rod 3 is raised and the container 1
When the shoulder 1e reaches the inside of the tongue 6a, press the lower outer surface of the stretch label 13 with the arms 11a, 11b of the label clamp 11,
It is held between the outer surface of the tongue piece 6a (see FIG. 3).

As shown in FIG. 4, as the container 1 is raised, the shoulder portion 1e of the container 1 moves upward while spreading the stretch label 13 via the flexible tongue 6b.

When the shoulder portion 1e of the container 1 passes through the upper end of the tongue piece 6b and rises, the shoulder portion 1e rises while directly pushing and expanding the upper end portion of the stretch label 13.

The upper end of the label attachment part 1d and the stretch label 1
When the upper edges of 3 match, stretch label 13
, the arms 12a and 12b of the bottle clamp 12
Then, the label clamp 11 is gripped together with the container 1, and the arms 11a and 11b of the label clamp 11 are released (see FIG. 5).

When the bottle clamp 12 is raised as it is, the stretch label 13 gradually separates from the tongue piece 6b and is attached to the label attachment portion 1d.

The labeled container 1 is moved to another location, the piston rod 3 is lowered, and the next container 1 is prepared.

In the method for attaching a stretch label described above, the container is moved vertically, but the container may be moved horizontally or diagonally.

The number of tongue pieces on the guide plate in the guide device is 2.
Any number of sheets or more can be selected.

By providing through holes at equal intervals along the circumference of the rotatable substrate and arranging a guide device or the like in each through hole, the stretch label attachment device can be made continuous. .

The tongues of the guide plate may not be individually petal-shaped, but may have an integral structure with their proximal ends connected to each other.

〔Effect of the invention〕

According to the method for attaching a stretch label of the present invention, since the diameter of the stretch label is expanded through the flexible tongue piece, the stretch can be small. Therefore, damage to the stretch label or cracking of printing ink on the surface of the stretch label can be reduced, and the adhesion of the stretch label to the container can be improved.

Additionally, the process of attaching stretch labels is reduced.
Work efficiency is improved by increasing installation speed.

In the stretch label mounting device of the present invention, the structure of the guide device is simple, making it possible to downsize the device and reduce its cost.

[Brief explanation of drawings]

1 to 6 are longitudinal cross-sectional views showing different working stages of the stretch label attaching device in order to show each step in the stretch label attaching method of the present invention, and FIG. 7 is the same as in FIG. 3. 8 is a partially cutaway front view showing only one of the guide plates in FIG. 7, FIG. 9 is a longitudinal side view, and FIG. 10 is a conventional stretch label. FIG. 11 is a partially cutaway plan view of the mounting device.
It is also a vertical cross-sectional view. 1...Container, 1a...Body part, 1b...Tapered part, 1d
...Label attachment part, 1e...Shoulder part, 2...Cap, 3
... Piston rod (moving means), 4... Board, 5...
Through hole, 6... Guide plate, 6a... Mounting part, 6b... Tongue piece, 7... Guide device, 8... Shaft, 9... Horizontal hole, 10
...Compression coil spring (biasing means), 11...Label clamp 11a, 11b...Arm, 12...Bottle clamp (gripping means), 12a, 12b...Arm,
13...Stretch label, 14...Label conveyor.

[Claims]

1. A horizontal bar having a circular cross section with the same diameter over the entire length, a filament extending from the center of the horizontal bar, and a filament fixed to the end of the filament facing the horizontal bar. It is an assembly in which a plurality of H-shaped locking devices each having a head are assembled, and the whole is integrally molded from thermoplastic resin, and the adjacent head is attached to a substantial part on an extension line of the filament. They are connected at a single target point, and a parallel small gap is formed between the adjacent horizontal bars, and the small gap includes a thin plate-like connection extending from the center of the horizontal bars toward both ends of the horizontal bars. 1. A locking device assembly, characterized in that the connecting body has a strength that allows the horizontal bar portions to maintain their positions relative to each other.

Claims (1)

A supply means for supplying the label, a holding means for holding the proximal end of the stretch label, a gripping means for gripping the container that has passed through the through hole together with the stretch label, and a moving means for inserting the container into the through hole. A stretch label attachment device comprising: 3. The strainer according to claim 2, wherein the proximal end of the tongue is pivotally connected to the guide device, and the free end is also urged toward the center of the through hole by the urging means. Tsuchi label attachment device. 4. The stretch label attachment device according to claim 3, wherein the biasing means is a compression coil spring.