JPH09124019A - Method and apparatus for peeling off of label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly peel off labels from a paper mount without using an auxiliary head by a method wherein a turning-up body is inclined at a certain degree of angle when the front end of a label that is turning round an acute angled edge is separated from the paper mount, and the paper mount is sucked with a suction head. SOLUTION: When a paper mount 2, unwound from a roll 1 and supplied round rollers 5, is turned round an acute angled part 11 of a turning-up body 10, a rigid label 3 is gradually peeled off from the paper mount 2, starting at its front end. When a part on the front end of the label 3 is separated, a mark on the paper mount 2 is detected with a sensor 12 and carriage of the paper mount 2 is stopped and at the same time, a suction head 15 connected to a vacuum pump 19 is lowered together with a pressing body 16 that is fixed integrally with the head. Then, a pressing body 16 pushes down a bent part 14 of the turning-up body 10, making the turning-up body 10 turn counterclockwise round a fulcrum 13. As the turning-up body becomes approximately horizontal, the suction head 15 is pressed against thereto and the label 3 is sucked. As the suction head 15 ascends slowly, separating from the turning-up body 10, the label 3 is gradually peeled off and completely separated from the paper mount 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for peeling a label from a mount in a labeling device for peeling a label stuck to a tape-shaped mount and sticking it to an article.

[0002]

2. Description of the Related Art In order to remove a label from a tape-shaped mount, a tape-shaped mount to which a label is attached is used as a tip, as described as a conventional example in FIG. 4 of JP-A-2-191135. The sharp edge is bent from one side of the folded body having a sharp edge and is run backwards, and the backing sheet is folded back at an acute angle, whereby the label peels from the backing sheet due to its rigidity, and a part of the rear end of the label is attached to the backing sheet. Therefore, when the cantilevered state, the traveling of the backing paper is stopped, the suction head connected to the negative pressure source is pressed against the label from above to adsorb it, and the movement of the suction head completely removes it from the backing paper. However, as described in the section of the problem to be solved by the invention of the publication, there is some error in the arrangement pitch of the labels attached to the mount, so when the traveling of the mount is stopped, If the sticking width is not constant and the sticking width is large, the suction force of the suction head becomes relatively smaller than the adhesive force to the mount, making it difficult to peel the label with the suction head. On the contrary, when the adhesive width of the label is small, the label may hang down and cannot be adsorbed by the adsorption head.

For this reason, in this publication, it is proposed to provide an auxiliary head for adsorbing a label protruding from an acute-angled edge from above with a suction head and at the same time pushing up the label from below to make pressure contact with the suction head. Such an auxiliary head requires extra space, and
In addition to increasing the cost, it is necessary to provide a buffer member such as a coil spring on the suction head in order to absorb the impact caused by the collision with the auxiliary head, which has a drawback that the structure becomes complicated.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus capable of reliably peeling a label from a mount without using the auxiliary head as described above. .

[0005]

Means, functions and effects for solving the problems.
The invention of the label peeling method, as a means for solving the above problems, causes a tape-shaped backing sheet having a label attached thereto to be folded and run from one surface of a folded body having an acute edge at its tip to turn the acute edge. When the sharp edge is folded back and a part of the tip of the label is peeled from the backing sheet, the traveling of the backing sheet is stopped, and the backing sheet is tilted at a certain angle in the traveling direction of the backing sheet to separate the backing sheet from the one surface of the backing sheet. ,
A suction head connected to a negative pressure source is brought closer to the one surface of the folded body to suck the label, the suction head is separated, the folded body is returned to the original position, and the traveling of the mount is restarted. In addition, when a part of the tip of the label with the sharp edge folded back is separated from the backing sheet, the traveling of the backing sheet is stopped and the folded body is separated from one surface of the folding body by tilting the folding body at a certain angle in the traveling direction of the backing sheet, Since the suction head is brought close to one side of the folding body to suck the backing sheet, most of the label is attached to the tensioned backing sheet on the folding body and pressed against the suction head, so that the label is mounted on the backing sheet. However, even if there is some misalignment, the entire surface is firmly adsorbed by the adsorption head,
Then, when the suction head is separated from the folded body, a part of the label has already been peeled from the mount, so that the label gradually peels from the peeled portion, and the whole label is peeled and transferred to the suction head.

As described above, since most of the label is pressed against the suction head, the label is strongly adsorbed, and the label is gradually separated from the already separated portion as the suction head is separated. Even if the force is small, the label can be surely peeled off from the mount and adsorbed at an appropriate position of the adsorption head.

Next, the invention of the label peeling apparatus according to claim 2 is a drive device for feeding a tape-shaped mount having a label attached thereto from a roll, and a sharp edge formed at the tip of the mount for running the mount along one surface. A folding body that peels the label from the backing sheet by bending and running back, and a sensor that detects the traveling of the backing sheet and outputs a signal to stop the driving device when a part of the label tip is peeled from the backing sheet, and the backing sheet. Is connected to a negative pressure source, and the mount is connected to the negative pressure source by engaging the folded body with one end of the folded body when the traveling of is stopped and tilting the mount at a certain angle in the traveling direction of the mount to separate the mount from the folded body. The invention of claim 1 can be reliably carried out, since it has a suction head that comes close to the backing sheet when it is separated from the folded body, sucks the label, and then separates from the folded body. Can.

According to a third aspect of the present invention, there is provided the label peeling device according to the second aspect, wherein the tilting device is integrated with the suction head. Therefore, the folding body is tilted and the suction head is pressed against the label. There is an effect that it can be surely synchronized and the structure is simple.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1 showing an outline of this embodiment, 1 is a label 3 on a tape-shaped backing sheet 2 at regular intervals in the feeding direction.
Which is a roll in which the adhesive tape is adhered to the reel a and is wound out from the reel a by the motor 6 constituting the drive device of the present invention and the nip rollers 7, 8 rotatably driven by the motor 6. When the label 3 is sent and taken up by the take-up reel 9, while being wound around the rollers 4 and 5 to fold back the sharp edge 11 of the folded body 10 described later, the label 3 is attracted and peeled off by the adsorption head 15 described later, and is adsorbed. Head 1
By the movement of 5, it is attached to a component conveyed on a line (not shown).

Next, the process of peeling the label 3 from the mount 2 will be described with reference to FIGS.

First, as shown in FIG. 2, the backing sheet 2 fed from the roll 1 turns the roller 5 and turns the sharp edge 11 of the folding body 10 held in a slanting downward inclination. The label 3 is folded back, and at that time, the label 3 having a higher rigidity than the mount 2 is gradually peeled from the mount 2 from the leading end and goes straight.

When a part of the tip of the label 3 is peeled from the mount 2, as shown in FIG. 1, the mark left after the label 3 of the mount 2 wound on the take-up reel 9 is peeled off is detected by the sensor. 12 optically detects and stops the motor 6 to stop the traveling of the mount 2, and the suction head 15 which is connected to the vacuum pump 19 which is a negative pressure source by the hose 18 to suck the article by the negative pressure. It descends together with the pressing body 16 which is the tilting device of the present invention integrally fixed by the arm 17.

Then, as shown in FIG. 3, the pressing body 16 pushes down the bent portion 14 formed at the rear end of the folding body 10,
The folded body 10 rotates counterclockwise around the fulcrum 13 to be in a substantially horizontal posture, and the mount 2 has the roller 5 and the folded body 10 in a substantially horizontal posture.
The label 3 is stretched between the acute-angled edges 11 and separated from the upper surface of the folding body 10, and the suction head 15 is pressed against the suction head 15 to suck the label 3.

At this time, most of the label 3 is attached to the mount 2, so that the label 3 is surely adsorbed by the adsorption head 15.

Then, as shown in FIG. 4, when the suction head 15 gradually rises together with the pressing body 16 and moves away from the folding body 10, the label 3 starts from the acute-angled edge 11 and is gradually peeled off from the mount paper 2, and finally, As shown in FIG. 5, the mount 2
The label 3 is completely peeled off and attached to an article on a line (not shown) by the movement of the suction head 15, and the label 3 is gradually peeled off from the partially peeled leading end, so that the suction head 15 exerts a large suction force. do not need.

When the pressing body 16 is separated from the bent portion 14, the folding body 10 is returned to its original position in which it is in contact with a stopper (not shown) by a spring (not shown).

[Brief description of the drawings]

FIG. 1 is a side view showing an outline of one embodiment of the present invention.

FIG. 2 is a side view showing a state in which the suction head approaches the label 3.

FIG. 3 is a side view showing a state where a suction head sucks a label.

FIG. 4 is a side view showing a state where the suction head is sucking the label 3 and peeling it from the mount 2.

FIG. 5 is a side view showing a state in which the suction head peels the label from the mount.

[Explanation of symbols]

 1: Roll 2: Mount 3: Label 6: Motor 10: Folding body 11: Sharp edge 12: Sensor 15: Suction head 16: Pressing body (tilting device) 19: Vacuum pump

Claims (3)

[Claims] 1. A tape-shaped backing sheet to which a label is attached is bent from one surface of a folded body having an acute edge at its tip to make it run in a folded manner, and the acute edge is folded to make a part of the tip of the label. Stops the traveling of the mount when separated from the mount, tilts the folded body at a certain angle in the traveling direction of the mount to separate the mount from the one surface of the folded body, and folds back the suction head connected to the negative pressure source. A label peeling method in which a label is adsorbed by approaching the one surface of the body, the adsorption head is separated, and the folded body is returned to the original posture to restart the traveling of the mount. 2. A drive device for feeding a tape-shaped backing sheet having a label attached thereto from a roll, and a backing sheet for running the backing sheet by running the backing sheet along one surface and turning an acute-angled edge formed at the leading end to turn back. A folded body to be peeled off, a sensor that outputs a signal to stop the driving device when a part of the label tip is peeled from the backing sheet by detecting the traveling of the backing sheet, and the folded body when the traveling of the backing sheet is stopped. A tilting device that engages with one end to tilt the mount at a certain angle in the traveling direction of the mount and separates the mount from the folded body, and is connected to a negative pressure source, and approaches the mount when the mount is separated from the folded body. A label peeling device comprising: a suction head that sucks a label and then separates from the folded body. 3. The label peeling device according to claim 2, wherein the tilting device is integrated with the suction head.