JP2000203546A - Single drum type heat-sensitive paste activation labeler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stick a heat-sensitive label on an article to be stuck without using a suction drum arranged before a sticking drum by arranging a label sheet, a printing tool, a cut-mark reader and a cutter on a plane and arranging a paste activating device on the sticking drum. SOLUTION: On a heat-sensitive label sheet 1 wound into a roll-like shape so as to bring the paste face inside, after necessary items are printed on the surface by means of a printing tool 7, a printed cut mark is read by means of a reader and the read signal is outputted to a cutter 4 and the label sheet 1 is cut at an appropriate position. After a label is sucked by suction holes arranged on the peripheral edge of a sticking drum 5 through an evacuation pump and a suction exhaust path 12, suction is stopped at a sticking stage and the label is pressed on the container 10 by means of a pressing device 11. In addition, a paste-activating device 8 arranged by facing to the surface of the sticking drum 5 uses a far infrared radiation ceramic to emit far infrared rays by heating the ceramic by means of an induction heating coil.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a labeler for attaching a heat-sensitive label to an adherend.

[0002]

2. Description of the Related Art A conventional labeler for attaching a heat-sensitive label to a container or the like cuts the label into a predetermined size and then holds the adhesive surface by sucking the adhesive surface into a suction hole of a suction drum. Print the necessary items on the surface, then check the printing,
After removing the defective label, the printed surface is sucked into the suction hole of the sticking drum, and the glue surface and the printed surface are reversed and held.
The glue surface on the outside was activated and attached to a container or the like.
That is, in order to activate the glue surface, the sticking drum needs to be sucked and held with the glue surface outside. For this reason, since printing cannot be performed on the sticking drum, a suction drum for printing is required.

[0003]

Since a labeler using a conventional suction drum requires a suction drum, not only the device becomes large and the area of the device becomes large, but also the label sticking speed becomes slow and the suction drum becomes slow. Since it is necessary to precisely adjust the synchronization of the sticking drum and the attachment drum, an attached control device is required, and the operation becomes complicated, so that improvement is required. The present invention solves the conventional problem by providing a single drum labeler that uses only a sticking drum without using a suction drum.

[0004]

Means for Solving the Problems The present invention relates to: 1. a label sheet wound in a roll shape with the glue surface outside, and a label sheet pulled out from the roll on a surface opposite to the glue surface. A printer for printing necessary items, a feed roll provided in front of the printer, and a label disposed at a position where at least the tip of a cut label piece provided in front of the roll comes into contact with a suction hole of a sticking drum. One sticker having a sheet cutter and a plurality of suction holes for adsorbing the side opposite to the glue surface of the heat-sensitive activated label cut and sent to a predetermined size, and a suction device connected to each suction hole. A mounting drum, a heat-sensitive adhesive activating device disposed on the peripheral edge of the bonding drum so as to face the drum surface, and pressing the adhered body provided next to the activating device against the bonding drum. Press to attach label by rotating drum 1. A single-drum type heat-sensitive glue activation labeler, which is provided with a label placement can detection / discharge device provided at a position in the traveling direction from the pressing device 2. The label sheet cutter is moved in the traveling direction of the attachment drum. 2. The single-drum type heat-sensitive adhesive activation labeler according to item 1, which is a cutter including a backing plate disposed in the vicinity of a suction hole at a rear portion and a cutting blade corresponding to the corresponding plate. 3. The single-drum type heat-sensitive glue activation labeler according to paragraph 1 or 2, which is arranged in a distributed manner over the area to be covered 4. The heat-sensitive glue activation device is a far-infrared radiation heating device, and is non-contact. 4. The single-drum type heat-sensitive adhesive activated labeler according to any one of items 1 to 3, which is a heating device for activating the adhesive surface of the heat-sensitive label by radiant heat of far infrared rays. The single device according to any one of Items 1 to 3, wherein the activation device is a near-infrared radiation heating device, and the heating device activates the adhesive surface of the thermosensitive label by radiant heat of near-infrared light in a non-contact manner. 5. A drum-type heat-sensitive adhesive activation labeler 6. An arc-shaped pressing guide along the periphery of the sticking drum, which guides and pushes the adhered body fed by the pressing device to the sticking drum. Item 6. A single-drum type heat-sensitive adhesive activation labeler according to any one of Items 7. 7. A suction device connected to a suction hole of the application drum guides the adherend to the application drum by a pressing device and presses the same. 7. A single-drum type heat-sensitive adhesive activated labeler according to any one of Items 1 to 6, which is a suction device that stops suction at the stage of performing the printing operation 8. The printing device for sticking a defective printing label is a scrubber or a suction device. Discharge equipment In it, according to any one of no counts 1 to 7 wherein, the single drum-type thermal paste activation labeler. About.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention does not use a suction drum. Since the sticking drum must adsorb the opposite side of the glue surface to activate the glue, it is not possible to print necessary items on the side opposite to the glue surface of the label without the suction drum.
The present invention prints necessary items on the opposite side of the glue surface with a printing device and a cutter arranged on one plane before arriving at the sticking drum, is sent to the sticking drum side by a feed roll, and is close to the sticking drum Since the individual label pieces are cut by the cutter at the position or on the sticking drum, the suction drum is not required. The position of the cutter must be such that at least the front end of the label piece is in contact with the suction hole of the sticking drum when viewed from the feeding direction of the cut label. This is because if it is not at this position, the cut label piece will not be attracted to the sticking drum. A cutter provided at a position close to the sticking drum may be a cutter comprising a cutting blade and a cutter comprising a roller which sandwiches the label sheet and which comes into contact with the rotary blade. As the cutter installed on the sticking drum, a patch plate provided near the suction hole at the rear of the sticking drum, a cutter including a cutting blade, or the like is used. The necessary items are printed in this manner, and the label pieces cut individually are sucked and held by the suction holes of the sticking drum on the surface opposite to the glue surface. The suction holes of the sticking drum are connected to a reduced-pressure suction device that applies reduced pressure to apply suction force. The most common vacuum suction device is a vacuum pump.

The heat-sensitive adhesive activating device disposed on the peripheral edge of the sticking drum and opposed to the drum surface in the present invention heats and activates the heat-sensitive adhesive, and is heated by a hot air or heated by a halogen lamp. Is used. For example, near infrared rays may be a heating device. However, heating with hot air has many problems, such as noise, exhausting a large amount of generated hot air, and low heating efficiency. On the other hand, heating a halogen lamp has a problem in that the heat absorption of paper in the near-infrared wavelength region generated by the halogen lamp is high. Is very low, being 1 to 40%, which is not suitable for a high-speed labeler. Since the base material of the label is paper, if the heat absorption rate is low, there is a problem that activation of the heat-sensitive adhesive requires a long time. The most preferred glue activation device is a far infrared radiation heating device. It is preferable from the viewpoint of the activation of the glue and the speed of label application that the heating device provided to face the outer periphery of the application drum is provided so as to surround at least １ ／ of the entire circumference of the outer periphery of the drum. As the far-infrared radiation heating device, a commercially available ceramic far-infrared heating device that emits heat rays from a heating element by converting the wavelength into far-infrared rays using a ceramic layer is used. Specifically, a thin metal strip is used as a heating element, a ceramic layer is provided on the surface of the heating element, and far-infrared rays are emitted by energizing.

[0007] A far-infrared radiation heating device can be arranged on the sticking drum. In this case, a ceramic layer is provided on the outer peripheral surface of the sticking drum, an induction heating coil is placed inside the drum, and far-infrared rays are radiated from the ceramic layer by energizing the drum to activate the heat-sensitive label paste. I do. Of course, both heating devices may be provided in parallel.

As ceramics that emit far-infrared rays,
For example, a far infrared heating system manufactured by NGK Insulators, Ltd. is used. The wavelength from the far-infrared radiation heating device is 2.
Far infrared rays of 5 μm to 25 μm are radiated, and the heat absorption rate of paper at this wavelength is about 80%, which is very suitable for heating paper-based objects such as labels, and heat-sensitive adhesive can be applied in a short time. This is because it can be activated. This is much better than the near-infrared paper having a heat absorption of about 1 to 40%.

The label in which the glue is activated advances to a position where the adherend is fed by the rotation of the sticking drum. The adhered object is pressed by an attaching drum by a pressing device and adheres the label while rotating. As the pressing device, a known device is used, but a simple device is preferably an arc-shaped pressing guide or a pressing roll along the sticking drum surface. Providing a device that detects a defective label and ejects the can with the defective label attached to the position in front of the pressing device in the traveling direction detects the defective label on or in front of the attaching drum. There is also a method of removing the defective cans by detecting and removing the defective cans after labeling, which is advantageous in that not only cans having defective printing conditions but also cans having defective bonding conditions can be removed.

[0010]

EXAMPLES The present invention will be described specifically with reference to examples.

FIG. 1 is an embodiment specifically showing a single drum type labeler of the present invention. Reference numeral 1 denotes a heat-sensitive label sheet wound in a roll shape with the adhesive surface inside. A reading mark for cutting at a certain size is printed on the label sheet. A printing device 7 prints necessary items on the surface of the label sheet. 3 is a feed roll. Reference numeral 2 denotes a reader for a cutting mark printed on the label sheet, which reads the mark and outputs a signal to the next cutter 4 to cut the label sheet. Although the cutter is shown in FIG. 1 at a position away from the attaching drum 5 for easy understanding, the cutter is actually provided at a position where the cut label is sucked into the suction hole 6 of the attaching drum. In this embodiment, a cutter including a cutting blade and a contact roll is used. 5
Reference numeral denotes a sticking drum, and suction holes for sucking the label are distributed around the periphery so as to be covered by the label. Reference numeral 12 denotes a suction exhaust path which is provided in the sticking drum and connected to the suction hole, and which is connected to a decompression pump. It is controlled so that it stops and discharges the defective label and attaches the label easily. Reference numeral 8 denotes a glue activating device disposed opposite to the surface of the sticking drum. In this embodiment, a far-infrared radiation ceramic manufactured by NGK Insulators, Ltd. is used. An activation device that emits far-infrared rays by heating ceramics is used. 9 is a conveyor which conveys the to-be-adhered object 10 to an adhering drum. Reference numeral 11 denotes a pressing device that presses an object to be bonded onto a bonding drum to apply a label. In this embodiment, a pressing guide is used, but a pressing roller or the like may be used. The object to be bonded 10 is rotated by the rotation of the application drum while being pressed by the application drum by the pressing device, and the label is wound around and applied. Reference numeral 13 denotes a printing defect label sticking can detection and elimination device. For example, a screver or a suction / discharge device is used. It is activated by a signal from the print inspector 16.

FIG. 2 shows an embodiment in which a cutter 4 comprising a backing plate 14 and a cutting blade 15 is provided on a sticking drum. In this embodiment, a backing plate 14 is provided near the label suction hole 6 at the rear as viewed from the direction of travel of the sticking drum. After the fed sheet is adhered by the suction hole, the cutting blade 15 hits the backing plate 14 and the rear end of the label sheet is cut.
This embodiment has an advantage that the cut label is always adsorbed to the sticking drum.

FIG. 3 shows a conventional labeler. Reference numeral 17 denotes a suction drum. A label 18 cut to a predetermined size is suction-adsorbed and held in a suction hole 19 of the drum. Printing is performed on a surface having no mark by a printing device (not shown), a printing inspection is performed to remove a defective label, and the printing surface is adsorbed onto the sticking drum 5 and fed. Thus, two drums are required.

[0014]

According to the present invention, a label sheet, a printing device, a cutting mark reader, and a cutter are arranged on one plane, and a defective label discharging device and a glue activating device are sequentially arranged on a sticking drum. The heat-sensitive label can be stuck to the object to be stuck without using the suction drum arranged in front of the sticking drum, which has been said to be used.
It has an excellent effect of reducing the energy used and increasing the sticking speed.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a labeler of the present invention.

FIG. 2 is an explanatory view showing another labeler embodiment of the present invention.

FIG. 3 is an explanatory view showing a conventional labeler.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Thermal label sheet wound in a roll 2 Cutting mark reader 3 Feed roll 4 Cutter 5 Sticking drum 6 Label suction hole 7 Printer 8 Thermal glue activation device 9 Conveyor 10 Adhered material 11 Pressing device 12 Suction exhaust path DESCRIPTION OF SYMBOLS 13 Printing defect label sticking can detection and discharge device 14 Backing plate 15 Cutting blade 16 Print inspection device 17 Suction drum 18 Cut label 19 Suction hole

Claims (8)

[Claims] 1. A label sheet wound in a roll with the glue surface outside, and a printing device for printing necessary items on a surface opposite to the glue surface of the label sheet drawn from the roll.
A feed roll provided in front of the printing device, a label sheet cutter disposed at a position where the leading end of at least the cut label piece provided in front of the roll comes into contact with the suction hole of the sticking drum, and a predetermined size. A sticking drum provided with a plurality of suction holes for adsorbing the side opposite to the glue surface of the cut and fed heat-activated label and having a suction device connected to each suction hole; A heat-sensitive glue activating device disposed on the periphery of the drum surface and facing the drum surface, and a label attached by pressing the pressing target body provided next to the activating device to the bonding drum and rotating the drum; A single-drum type heat-sensitive adhesive activation labeler, comprising: a pressing device that performs a pressing operation; 2. The label sheet cutter according to claim 1, wherein the cutter comprises a backing plate disposed in the vicinity of a suction hole at a rear portion of the labeling drum when viewed from the advancing direction of the sticking drum, and a cutting blade corresponding to the corresponding plate. The described single-drum type thermal glue activated labeler. 3. The labeling device according to claim 1, wherein the suction holes are arranged in a distributed manner over the area covered by the label. 4. The heat-sensitive glue activating device is a far-infrared radiation heating device, and is a heating device for activating a glue surface of a heat-sensitive label by radiant heat of far-infrared radiation in a non-contact manner.
A single-drum type heat-sensitive adhesive activated labeler as described in any one of the above. 5. The heat-sensitive glue activating device is a near-infrared radiation heating device, and is a heating device for activating a glue surface of a heat-sensitive label by radiant heat of near-infrared light in a non-contact manner.
A single-drum type heat-sensitive adhesive activated labeler as described in any one of the above. 6. The pressing device according to claim 1, wherein the pressing device is an arc-shaped pressing guide along a peripheral edge of the bonding drum, which guides the bonded object to the bonding drum and presses the bonded object. A single-drum type heat-sensitive adhesive activated labeler as described in the item. 7. The suction device, wherein the suction device connected to the suction hole of the sticking drum is a suction device that stops suction at the stage of guiding the object to be stuck to the sticking drum by the pressing device and pressing the same.
7. A single-drum type heat-sensitive adhesive activated labeler according to any one of items 6 to 6. 8. The single-drum type heat-sensitive adhesive activated labeler according to claim 1, wherein the defective printing label sticking can discharging device is a screver or a suction discharging device.