JPS6233133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a label transport drum having a glue cleaning mechanism used when transporting a label that has been pasted to the next process.

When transporting a label that has already been glued, for example, a peelable label A (hereinafter referred to as a "tag label") that is adhered to a tape-shaped backing paper, the label A that has been peeled off from the backing paper B is transferred to the transport drum C as shown in FIG.
The label A is passed over a floor surface D formed at the bottom of the transfer drum C and transferred to the next process.

However, a small amount of glue adheres to the floor surface that the label A that has been pasted comes into contact with.

Recently, in order to correct the inclination of the label A, such as front rise and rear rise, many apparatuses are equipped with a label presser that presses down the upper edge of the label A to an accurate position while the label A is being transported.

Therefore, especially when passing through this label presser D, glue tends to adhere and the glue accumulates more and more.

As a result, the label attempting to pass over the floor adheres to the accumulated glue, impeding smooth passage of the label.

When labels adhere to each other, subsequent labels become jammed one after another, resulting in a large amount of labels being wasted, and there is a problem in that the operation of the apparatus must be interrupted until the floor has been cleaned.

The present invention was made to solve such problems, and it enables smooth label transport by removing glue that adheres to the floor surface during label transport.
An object of the present invention is to provide a label transport drum having a glue cleaning mechanism.

Next, an embodiment of the present invention will be described, but first, each part of the device will be described.

[B] Label Peeling Section As shown in FIG. 1, the label 1 is a tag label whose adhesive surface has already been coated with adhesive and can be easily peeled off from the tape-shaped mount 11.

This label 1 is wound up into a roll and mounted on a rotary table 2.

The free end of this tape-shaped label is connected between two pull-out rollers 3, and the tape is drawn out from the turntable 2 by rotation of the pull-out rollers 3. Turntable 2 and pull-out roller 3
A reversing guide 4 constituted by an acute-angled surface is arranged between them.

The reversing guide 4 is installed at a position where the tape-shaped mount 11 contacts the acute-angled surface of the reversing guide 4 and is reversed at an acute angle.

[B] Label Transfer Section The transfer drum 5 is placed close to the reversing guide 4.

The transfer drum 5 is a drum that attaches the already glued label 1 to a container 6 or the like approaching from the tangential direction of the transfer drum 5.

The transfer drum 5 is a rotating cylinder that rotates around a shaft 51 as shown in FIG.

The circumferential surface of the transfer drum 5 has protruding claws 52 divided into equal parts, and a large number of suction holes 53 are formed on the circumferential surface for suction.

Negative pressure may be generated in all the suction holes 53, but a negative pressure groove 54 is formed at the bottom of the transfer drum 5 that connects the reversing guide 4 to the star, and the passage passes above the negative pressure groove 54. Suction hole 5
The structure is configured so that negative pressure is generated only in No. 3.

On the other hand, the outer periphery of the transfer drum 5 is
A curved guide plate 7 extending in the rotation direction is arranged parallel to the circumferential surface of the rotor.

[C] Floor plate In addition, the floor plate at the bottom of the transfer drum 5 is not fixed, but is a donut-shaped rotating disk 8.
Consisting of:

The rotating disk 8 has a maximum diameter larger than the diameter of the transfer drum 5, and
The label is made to protrude from the circumferential surface of the label, and the protruding portion is used for sliding the label.

The rotating disk 8 is configured to rotate at a low speed in the same direction as the transfer drum 5 or in the opposite direction (in the case of FIG. 1, in the opposite direction of the transfer drum).

To impart rotation to the rotary disk 8, for example, a drive roller (not shown) is placed in contact with the periphery of the rotary disk 8, and the rotation force of this drive roller is configured to impart rotation to the rotary disk 8. do.

In short, it is sufficient that the label 1 itself can be moved while supporting the lower edge of the label 1 on the plate surface of the rotary disk 8.

[C] Cleaning Mechanism Since the glued label 1 comes into contact with and passes through the contact surface of the rotary disk 8 that supports the lower edge of the label 1, glue tends to adhere thereto.

Therefore, the cleaning device 81 is installed at a position immediately before the rotary disk 8 receives the label 1.

The cleaning device 81 uses a mechanical method such as scraping the contact surface of the rotary disk 8 with a brush or a sharp grinding blade, or wiping it with a sponge roller, a chemical method using chemicals, or using heat. A known method such as an electrical method can be used.

Next, a method for cleaning glue will be explained.

[B] Container Supply The containers 6 are fed from the star 9 from the belt conveyor, screw conveyor, etc. in the tangential direction of the transfer drum 5.
Then, it is held in the recess 91 of the star 9 and approaches the transfer drum 5.

[B] Label Supply The mount 11 between the pull-out rollers 3 starts to move as the pull-out rollers 3 are driven.

The label 1 on the mount 11 approaches the reversing guide 4 as the mount 11 moves, and while the mount 11 moves following the acute angle surface of the reversing guide 4, the label 1 cannot follow the deformation and the mount
Peel off sequentially starting from 1. The peeled label 1 continues to move while sliding on the floorboard with its lower edge supported by the rotary disk 8.

When the label 1 is pushed out and approaches the circumferential surface of the transfer drum 5, the leading end of the label 1 is attracted by negative pressure and moves together with the transfer drum 5.

At this time, since the rotary disk 8 is rotating at a low speed, the label 1 smoothly runs on the contact surface of the rotary disk 8 without being adversely affected by the movement of the label 1 being inhibited.

A claw 52 protruding from the circumferential surface of the transfer drum 5 catches up with the tail end of the label, and the label supply timing is corrected.

At the same time as the label 1 supply timing, the label 1 is
The inclination of will be corrected and it will approach Star 9.

[C] Pasting The label 1 corrected to the correct position and supplied at the proper timing is pasted by coming into contact with the container 6 approaching from the tangential direction of the transfer drum 5.

[d] Removal of glue When the label 1 passes over the contact surface of the rotary disk 8, a small amount of glue adheres to this plate surface.

Since the rotary disk 8 rotates independently of the transfer drum 5, the area to which the glue is attached moves and passes through the cleaning device 81.

When passing under the cleaning device 81, the glue adhering to the rotary disk 8 is cleanly removed, and the label 1 is sent back onto the trajectory along which the label 1 passes.

As a result, the contact surface of the rotary disk 8 located on the trajectory along which the label 1 passes remains free of glue at all times, and the label 1 runs smoothly.

Since the present invention is as explained above, the following effects can be expected.

<B> Since the floor plate on which the label is slid and transferred is configured as a rotating disk having a cleaning device, the glue attached to the contact surface of the rotating disk is removed.

Therefore, label clogging can be prevented and labels can be transported smoothly.

<B> It can be used for various drums as long as they are used to transport labels.

<C> The labels to be transported are not limited to tagged labels, but can also be glued labels, such as tape-shaped labels cut into short pieces, or labels stored in a label holder and supplied, depending on the application. Wide range.

<D> Since labels can be transferred smoothly, not only is the waste of labels that was previously achieved drastically reduced, but it also eliminates the need to stop the operation of the equipment each time a label that is stuck to glue is removed. This eliminates the need for efficient driving.

<E> Since the rotating disk is rotated to remove glue, it is not necessary to rotate it at high speed.

In other words, the accumulation of glue on the floor surface does not occur in such a large amount that it is visible to the naked eye, but rather it accumulates gradually over long periods of operation, so the cleaning action can be carried out slowly.

In contrast, labels are fed at a rate of several hundred sheets per minute.

Therefore, the rotation of the floor surface has no effect on the supply of labels.

[Brief explanation of the drawing]

FIG. 1: An explanatory diagram of the entire apparatus according to the present invention, FIG. 2: An explanatory diagram of a transfer drum, and FIG. 3: An explanatory diagram showing a conventional transfer method. 1: Label, 2: Turntable, 3: Pull-out roller, 4: Reversing guide, 5: Transfer drum, 7: Guide plate, 8: Rotating disk, 81: Cleaning device.

Claims (1)

[Claims] 1. In a drum for transporting labels with adhesive on one side, a rotary disk having a diameter larger than the diameter of the transport drum is located at the bottom of the transport drum, and the label slides on this rotary disk. A label transfer drum having a glue cleaning mechanism, the label transport drum having a glue cleaning mechanism, comprising: a rotatable floor surface, and a non-moving cleaning device disposed in contact with the surface of the rotary disk.