JPS6139219B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a label applicator for attaching labels to containers such as bottles, and particularly to a label applicator for attaching long labels.

A rotating table for transporting containers, a container mounting table rotatably disposed on the rotating table, and a label attached to the container on the container mounting table facing the periphery of the rotating table. Conventionally, a labeling device is known which has a labeling mechanism that applies a label to the container and uses the rotation of the container to apply a label to the container. However, when pasting long labels using such conventional labeling equipment, it is difficult to apply the required accurate label because the unstable label attached to the container tends to tilt due to its own weight. I felt a sense of regret that it was difficult to understand how he was dressed.

SUMMARY OF THE INVENTION The present invention has been made with the object of providing a label pasting device which eliminates the drawbacks of the conventional ones and can reliably paste even long labels at accurate positions.

In order to achieve the above object, the present invention includes a rotary table for transporting containers, a container mounting table rotatably disposed on the rotary table,
A label affixing mechanism faces the periphery of the rotary table and affixes a glued label to the container on the container mounting table, and the label is affixed to the container by utilizing the rotation of the container. The labeling device is mounted on the rotary table so as to face the container on the container mounting table so as to be able to move toward and away from the container, and has a label attached to the container on the front surface at a position of contact with the container. A guide including a horizontal plate portion that guides and holds an edge and a sliding contact portion that slides into contact with the surface of the label, and the guide is advanced to a contact position where it contacts the container over a predetermined rotation area of the rotary table. a means for driving the guide towards and away from the guide provided on the rotary table for retracting the guide to a separate position away from the container in the remaining rotation region; and an end of a label attached to the guide for rotating the container relative to the guide at the contact position. The present invention is characterized by comprising a means for rotating the container mounting table provided on the rotary table, the edge of which is guided by the horizontal plate part and brought into close contact with the container by the sliding contact part.

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows the overall configuration of the present invention,
A container feeding mechanism 3 and a container discharging mechanism 4 are disposed on one side of a rotary table 2 that rotates around a vertical axis 1 and conveys containers B. As shown in FIG. Among these, the container supply mechanism 3 includes a pair of parallel belts 5A and 5B that sandwich and convey the container B, and these belts 5.
A timing screw 6 is located downstream of A and 5B and synchronizes the container B with the rotation of the rotary table 2.
and a star foil 7 for supplying the container B from the screw 6 onto the rotary table 2.
On the other hand, the container discharging mechanism 4 includes a star foil 8 that takes out the container B from the rotary table 2, and a parallel belt 9 that transports the container B from the star foil 8 while rubbing and completely pasting the label L on the container B. and a sponge 10. In addition,
A Y-shaped guide 11 is disposed between the star foils 7 and 8 and forms a guide portion for the container B conveyed by the star foils 7 and 8.
The shape guide 11 includes a pair of arcuate guide surfaces 12A and 12B that extend along each of the star foils 7 and 8.

Thus, the container B is fed onto the rotary table 2 by the star foil 7;
A plurality of container mounting tables (not shown) each of which can rotate on its own axis are arranged at intervals in the circumferential direction, and the container B is placed on this container at the same supply timing. It is designed to be placed on the table. Further, on the vertical shaft 1, a plurality of guides 13, 13, .
The rods 14 protrude radially through the rotary table 2, and each rod 14 is slidable in the radial direction of the rotary table 2. Furthermore, a fixed disk 1 is provided coaxially with the vertical axis 1.
An endless cam groove 16 is formed in this fixed disk 15, and a cam follower 17 connected to each rod 14 is fitted into this cam groove 16. That is, as shown in FIG. 4, the fixed disk 15 is connected to the outer frame (not shown) via the fixed shaft 30.
On the other hand, the rod 14 is supported by the rotary table 2 and an auxiliary plate 31 attached thereto. When the distance between the cam groove 16 and the fixed shaft 30 changes, the rod 14 moves to the cam follower 1.
7 is guided by the vertical wall 16a of the cam groove 16 and moves in the left-right direction in FIG. Therefore, as the guide 13 rotates, it is regulated by the cam follower 17 fitted in the cam groove 16 and moves toward and away from the container B, which is rotating synchronously.

The guide 13, as shown in detail in FIG.
It has a pair of upper and lower horizontal plate portions 18A, 18B, and has a U-shaped cross section, and both horizontal plate portions 18A, 18B extend sufficiently laterally and contact the upper and lower edges of the label 1 to temporarily attach to the container B. It is designed to guide both ends of the attached label L. The horizontal plate portions 18A and 18B of the guide 13 have arch-shaped recesses 19A and 18B in which the container B engages, corresponding to each other in the upper and lower positions.
19B is formed. In addition, this recess 19
A sliding contact portion, for example, a brush 20, is tightly installed in the guide 13 at the center where A and 19B are formed.
It is curved like A and 19B.

By the way, a label pasting mechanism 2 is provided on the periphery of the rotary table 2 near the star foil 7 on the supply side.
1 is provided. This labeling mechanism 21
A suction head 23 that suctions labels L one by one in a label holder 22 that stores a large number of labels L in a stacked manner, and a suction head 28 that sucks labels L from the suction head 28.
A drum 24 that uses vacuum pressure to receive and convey the labels and deliver them to the container B, and a pair of glue rollers 25A and 25B that apply glue to the back side of the label L on this drum 24.
are arranged on the table 26.

Having the above-described configuration, this labeling device operates as follows. That is, container B is
After being conveyed by the parallel belts 5A and 5B of the container supply mechanism 3 and timed by the timing screw 6, the containers are placed on a container mounting table (not shown) on the rotary table 2 by the star foil 7. . Then, as the rotary table 2 rotates, the container B revolves counterclockwise, but the guide 13 is separated from the container B due to the regulation of the cam groove 16 and the cam follower 17 until the label L is delivered to the container B. There is.

Then, when the central part of the long label L whose entire back surface is coated with glue is attached to the container B by the label attaching mechanism 21, the container B to which this label L is attached is attached.
rotates 90 degrees counterclockwise to the state shown in Figure 3A. From here, it further rotates 90 degrees counterclockwise to reach the state shown in Figure 3B, but at this time, the cam groove 13, which is regulated by the cam groove 16 and the cam follower 17, rapidly approaches the container B and becomes long. label L
Hold the guide so that both ends are not tilted. Then, when the container B rotates 180 degrees counterclockwise from the state shown in FIG. 3B, the brush 2 in the guide 13
0 is in sliding contact with label L and half of label L is attached to container B.
(Figure 3C). Next, this time container B
is rotated clockwise and the remaining half of the label L is attached to the container B. At this time, the brush 20
In order to prevent the end portion of the guide 13 from slidingly contacting the label L and peeling off the label L, the guide 13 is slightly separated from the container B using the cam groove 16 as shown in FIG. 3D. Then, when the container B rotates so that the end of the label L does not come into contact with the brush 20, the guide 13 is brought close to the container B again, and the brush 20 is brought into sliding contact with the label L, as shown in FIG. 3E. .
Thereafter, the container B is rotated clockwise by 270 degrees, and the remaining portion of the label L is pasted onto the container B using the brush 20, as shown in FIG. 3F. The container B with the label L affixed in this way is taken out from the rotary table 2 by the star foil 8, and when passing between the belt 9 and the sponge 10, the sponge 10 furthermore completely labels the container to avoid wrinkles, etc. L is attached and transported to a predetermined storage position.

According to this embodiment, the long label L attached to the container B is attached to the horizontal plate portion 1 of the guide 13 accompanying the container B, as is clear from FIG.
Not only does it not become slanted as it is guided by the guides 8A and 18B, but also the brush 20 in the guide 13 slides into place, allowing it to be adhered well without wrinkles.

In the embodiment described above, the guide 13 had a pair of upper and lower horizontal plate portions 18A, 18B, but it is also possible to have only one horizontal plate portion 18B. Further, the brush 20 may not be provided within the guide 13, but may be fixedly provided at another position on the guide.

As described above, according to the present invention, even if the label attached to the container is a long label, the edge of the label is guided and held by the horizontal plate portion of the guide that is advanced and comes into contact with the container. In this state, the label can be attached tightly to the container without being distorted due to the cooperation between the rotation of the container and the sliding part of the guide. There are benefits to be gained.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the labeling device according to the present invention, Fig. 2 is an enlarged perspective view of the guide shown in Fig. 1, and Fig. 3 is a label using the guide. FIG. 4 is a longitudinal sectional view showing the state in which the rod is supported by a rotary table. 2: rotary table, 3: container supply mechanism, 4: container discharge mechanism, 13: guide, 16: cam mechanism, 1
7: Cam follower, 18A, 18B: horizontal plate part,
20: brush, 21: labeling mechanism, B: container, L: label.

Claims (1)

[Claims] 1. A rotary table for transporting containers, a container mounting table rotatably disposed on the rotary table, and a label facing the periphery of the rotary table and pasted to the container on the container mounting table. A labeling device having an attached labeling mechanism and configured to affix a label to a container by utilizing the rotation of the container, which is capable of freely approaching and separating from the container on the container mounting table. It is mounted on the rotary table and has a horizontal plate part that guides and holds the edge of the label attached to the container at a contact position with the container, and a sliding contact part that makes sliding contact with the surface of the label. a guide, and the guide provided on the rotary table for advancing the guide to a contact position where it contacts the container over a predetermined rotation region of the rotary table and retracting the guide to a spaced position away from the container in the remaining rotation region. and a rotary table that rotates the container relative to the guide at the contact position and brings the container into close contact with the container by the sliding contact portion while guiding the edge of the label attached to the container by the horizontal plate portion. and means for rotating the container mounting table provided therein.