JPS5834332B2 - Butsutai Tokunibinyourabellano Labelchiyoufusouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that at least one glue plate supported on a rotatably driven support has a segment whose axis of rotation lies in particular in a cylindrically curved peeling plane. mounted eccentrically on the support between the center of curvature of the The present invention relates to a labeling device for a labeler for objects, in particular for bottles, which is slowed down.

In known labeling devices of this kind, the direction of rotation of the support is opposite to the direction of rotation of the gripping cylinder, and its circumferential speed is approximately the same.

Since gluing is carried out under these conditions by rolling the segment onto the gripping cylinder, the arc length of the gripping cylinder must be approximately the same as the arc length of the support attached to the segment. be.

When dividing the gripping cylinder into four parts, the support body is divided into 6 or 8 parts.
It's double.

In order to be able to process as long a label as possible, each glue bends the receiving surface of the segment more than the average trajectory of the support described by the surface of the segment.

This bending requires that, for rolling purposes, the gluing segments undergo a reciprocating rocking motion while the support is rotating.

In known labeling devices, the number of glue segments on the carrier must be several times larger than the number of divisions of the gripping cylinder, which is a disadvantage.

Furthermore, gluing also suffers from the reciprocating rocking motion of the segments.

The present invention allows the gluing to use a small number of segments, with the gluing to the support varying the arrangement of the segments, and the gluing to control the movement of the segments as desired, with efficiency similar to known labeling devices. The object of the present invention is to create a label pasting device that is similar to the above.

This problem is solved in the labeling apparatus of the above-mentioned type as follows.

The support and the gripping cylinder are rotated in the same direction, and gluing rotates the segment in the opposite direction.

In the present invention, in the transfer process between the gripping cylinder and the receiving surface of the gluing segment, the gluing segment support and the gripping cylinder do not need to rotate in opposite directions and at substantially the same circumferential speed; Rather, gluing is carried out in such a way that the direction of rotation of the support of the segment is opposite to the direction of rotation of the gripping cylinder,
The gluing process is based on the recognition that a complete transfer process can be carried out when the rotation of the gluing segment by the support of the segment is compensated for around a single axis by the rotation of the segment in the opposite direction. standing in

Furthermore, corresponding to the division of the gripping cylinder, large divisions are produced in the support of the gluing segment.

The gripping cylinder and gluing can change the division of the supports (more or less) by changing the rotation ratio between the segments of the supports.

The invention therefore allows fewer stuck segments than known devices with the same efficiency.

Furthermore, the motion conditions for high machine powers are desired, since the gluing segment does not constantly change its direction of rotation.

Next, the present invention will be described in detail with reference to the drawings showing embodiments.

The label pasting device of the labeler consists of a rotary support 1 for gluing segments, stations provided one behind the other around the support, namely a gluing roll 2, a label box 3 containing labels, and a gripper. It consists of cylinder 4.

The gripping cylinder 4 is connected to the support 1 of the gluing segment by means of a transmission gear 5, so that the gluing segment support 1 and the gripping cylinder 4 rotate at a constant ratio.

This rotation ratio can be changed by replacing the gear 5.

The rotation ratio is 1:4 in the first embodiment, 1:2 in the second embodiment, and 3:4 in the third embodiment.

The gluing segment support 1 is supported by equally distributed gluing segments 6.

Each glued segment 6 has a cylindrical bent receiving surface 7.
The radius of curvature of this receiving surface is smaller than the distance between the axis of the support 1 of the segment and the outer periphery of the gripping cylinder 4.

The axis of rotation of the gluing segment 6 is provided between its receiving surface 7 and its center of curvature, and in a symmetrical position with respect to the receiving surface 7, and this axis of rotation is supported by a bearing on the segment support 1 for gluing. ing.

A planetary gear 9 is fixed to the rotating shaft of the segment 6, and this planetary gear 9 meshes with the fixed sun gear 8.

Therefore, when the gluing segment support 1 is rotated clockwise, the gluing segment 6 rotates clockwise by the fixed sun gear 8 and rotates counterclockwise.

A cam control transmission, not shown, accelerates or decelerates the rotation of the gluing segments to obtain a complete displacement of the receiving surface.

In gluing, when the segment support 1 is rotated clockwise, the grip cylinder 4 is also rotated clockwise via the transmission gear 5.

The labeling device constructed according to the present invention functions as follows.

For gluing, when the segment support 1 rotates clockwise,
During gluing, the segments 6 revolve in the same direction and rotate in opposite directions.

At this time, the receiving surface 7 of the segment 6 is first glued, the glue receiver for gluing the label to the bottle etc. is removed by the roll 2, and then the label on the front of the label box 3 is applied to the receiving surface with this glue. Further, the gripping cylinder 4 receives the label from the receiving surface 7 of the gluing segment 6 by means of known gripping fingers.

In this way, the label with adhesive on the outside is conveyed to a bottle etc. by rotation of the gripping cylinder 4. At the position where the bottle and the gripping cylinder 4 come into contact, the bottle is pressed against the gripping cylinder 4 and the label is attached. be done.

In this case, the gluing trajectory at each station of the receiving surface 7 of the segment 6, i.e. the gluing roll 2, label box 3 and gripping cylinder 4 position, is preferably such that the gluing trajectory at each station of the receiving surface 7 of the segment 6 is The label box 3 is attached so that the glue adheres to the effective range, and so that it moves tangentially to the label at the label box 3 position, and in contact with the gripping fingers of the gripping cylinder 4 at the gripping cylinder 4 position. The rotation of the gluing segment 6 is adjusted so that the speed increases to the maximum at the roll position, and the gluing speed decreases to the minimum at the roll 2 position.

This gluing adjustment of the acceleration of the rotation of the segment 6 is preferably carried out in a known manner by varying the number of teeth in each position of the fixed sun gear 8.

The gluing roll 2 is preferably driven once in the same direction of rotation as the gluing segment support 1.

In the embodiment of the present invention, if the rotation direction and rotation ratio are selected, even if the division interval of the gripping cylinder is made small, the interval between the gluing segments 6 provided on the support body 1 of the gluing segments can be increased. I can do it.

In the known device, the transfer is carried out by means of a support of the gluing segments and a gripping cylinder which roll against each other, the reciprocating oscillating movement of the gluing segments being only partially effective; On the other hand, in the labeling device according to the invention, the gluing is not based on the known transfer movement between the segment support and the gripping cylinder.

The reason is that the support of the gluing segment rotates in the same direction of rotation as the gripping cylinder.

In the present invention, the basis of the transfer process is opposite to the rotation direction of the gripping cylinder (the rotating gluing is a segment).

The gluing segment rotates and revolves due to the rotation of the support of the segment, so that it essentially rolls over the surface of the gripping cylinder 4, with its area occurring at an off-center position.

[Brief explanation of drawings]

Figures 1 to 3 are schematic plan views of the label pasting device of the labeler. Examples are shown in which three segments are provided. 1... Support body, 6... Segment for gluing, 7... Receiving surface, 4... Gripping cylinder.

Claims (1)

[Claims] 1. At least one gluing member supported on a rotatably driven support has a segment, the axis of rotation of which segment is aligned with the center of curvature of a receiving surface, in particular of a cylindrically curved receiving surface. provided on a support between the surface,
In a device for labeling objects, especially labelers for bottles, the speed of rotation is accelerated or decelerated in order to roll said receiving surface onto the surface of a rotating gripping cylinder, the gluing is carried out on segments 6 and 6. The planetary gear 9 that meshes with the fixed sun gear 8 is fixed, so that the gluing is done on the segment 6.
When the segment support 1 rotates, the segment 6 rotates in the opposite direction to the rotation direction of the segment support 1 and revolves in the same direction, and the grip cylinder 4 A label pasting device characterized in that the pasting is performed by the segment support 1 and the pasting is rotated in the same direction as the rotational direction of the segment support 1 via a transmission gear 5.