JP2001002039A - Single drum type heat-sensing paste activation labeler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a suction drum, and to provide a heat-sensing paste activation labeler ready for any label of various sizes by one suction drum by arranging a label sheet, a printer, a cut mark reader and a cutter on one plane, and providing closing rods for suction holes unnecessary to a label attachment drum. SOLUTION: Required items are printed by a printer 7 on a surface opposite to a pasting side of a heat-sensing label sheet 1 coiled in a roll, a cutting mark printed on the label sheet 1 is read by a reader 2, the label sheet is cut into individual label pieces by a cutter 4 arranged at the position where a tip of at least the cut label piece is brought into contact with a label suction hole 6 of an attachment drum 5 through a feed roll 3, and directly sucked to the suction hole 6 of the attachment drum 5. The label piece heated by a paste activation device 8 is attached to a work 10 by a pressing device 11. The attachment drum 5 is provided with closing rods to close unnecessary suction holes 6, and the distribution of the suction holes 6 can be adjusted to that suitable for the label piece.

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. Labels are available in various sizes depending on the purpose of use. When the label is adsorbed by the labeling drum, the suction hole needs to be covered with the label. Although the suction hole is formed from a group of holes in which several holes are arranged, if there is a suction hole that is not covered with the label, the pressure will not be reduced and the label cannot be sucked. For this reason, at present, a plurality of sticking drums provided with a group of suction holes corresponding to the dimensions of the label are prepared, and if the size of the label changes, the sticking drum of the labeler is replaced at present.

[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 having only a sticking drum without using a suction drum. Furthermore, it is troublesome to replace the sticking drum every time the label size changes, which not only reduces the label sticking efficiency, but also requires preparing multiple drums.
It was very inconvenient. The present invention provides a label suction drum that can be applied to labels of any size with one drum, and solves all of these problems.

[0004]

Means for Solving the Problems The present invention provides: "1.a. a printing machine for printing necessary items on the surface opposite to the glue surface of a label sheet, a feed roll provided in front of the printing machine, b) a label sheet cutter disposed at a position where at least the tip of the cut label piece provided next to the roll comes into contact with the suction hole of the sticking drum, and c. And place the label adsorption part
A sticking drum having one end opened to the top surface and the other end connected to the decompression device is installed, and the air passage and the suction hole are connected,
A label suction sticking drum comprising a closing rod which is removably inserted from an air passage opening on the top surface of the drum to close unnecessary suction holes; d. A heat-sensitive adhesive activating device disposed on the periphery of the sticking drum so as to face the drum surface; e. It consists of a pressing device that presses the sent adhered body provided next to the activation device to the bonding drum and applies a label by rotation of the drum,
Single drum type thermal glue activated labeler. 2. Item 1. The label sheet cutter according to item 1 or 2, wherein the label sheet cutter is a cutter including a backing plate disposed in the vicinity of a suction hole at a rear portion when viewed from the traveling direction of the attaching drum and a cutting blade corresponding to the corresponding plate. Single drum type thermal glue activated labeler. 3. Single-drum type heat-sensitive glue activation according to paragraph 1 or 2, wherein the label suction holes located on the drum are distributed on the peripheral surface of the drum and form a label adsorption section corresponding to a large label. Labeler. 4. 4. The single-drum type heat-sensitive adhesive activated labeler according to any one of items 1 to 3, wherein the closing rod is a closing rod having a length extending from a top surface of the drum to a suction hole in a lowermost layer. 5. The single-drum type heat-sensitive adhesive activated labeler according to any one of claims 1 to 4, wherein the closing rod is a closing rod having a head that is not inserted into the air passage opening. 6. Item 6. The single-drum type heat-sensitive adhesive activated labeler according to any one of Items 1 to 5, wherein an adjusting portion for adjusting a length inserted into the ventilation path is arranged in the closing rod. 7. The closing rod is a hollow rod having one end sealed and the other end opened, and ventilation holes communicating with the label suction holes are provided at a plurality of locations on the body wall, and the opening is communicated with the exhaust passage. The single-drum type heat-sensitive adhesive activated labeler according to any one of claims 1 to 6, which is a rod. 8. The single-drum type heat-sensitive adhesive activation labeler according to claim 7, wherein the closing rod is a closing rod that is inserted from the ventilation path opening on the top surface of the drum and rotated to communicate the ventilation hole with a desired label suction hole. 9. 9. The suction device according to any one of items 1 to 8, wherein the suction device connected to the suction hole of the sticking drum stops the suction at the stage of guiding the object to be stuck to the sticking drum by the pressing device and pressing the same. A single-drum type heat-sensitive adhesive activated labeler as described in 1 above. 10. 10. The method according to any one of items 1 to 9, wherein the heat-sensitive adhesive activating device is a far-infrared radiation heating device, and is a heating device that activates the adhesive surface of the heat-sensitive label by radiant heat of far-infrared radiation in a non-contact manner. , Single drum type heat sensitive glue activated labeler. 11. The heat-sensitive adhesive activating device is a near-infrared radiation heating device, and is a heating device that activates the adhesive surface of a heat-sensitive label by radiant heat of near-infrared light in a non-contact manner. , Single drum type heat sensitive glue activated labeler. 12. The pressing device according to any one of Items 1 to 11, wherein the pressing device is an arc-shaped pressing guide along the periphery of the bonding drum that guides and presses the adhered body fed to the bonding drum. , Single drum type heat sensitive glue activated 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 is a cutter having a cutting blade and a roll that contacts a rotary blade with a label sheet interposed therebetween. 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 label sticking drum of the labeler has a suction hole for adsorbing a label on a circumferential side surface. The suction holes are distributed in an area corresponding to the size of the label to be sucked, and each suction hole is connected to an air passage extending in the axial direction of the drum, and the air passage is connected to a pressure reducing device. The most common decompression device is a vacuum pump. The label supplied to the sticking drum is absorbed by covering the suction hole,
It passes through the heating activation zone by the rotation of the drum, and is pressed and adhered to the adherend.

In the sticking drum of the present invention, one end of the sticking drum is opened to the top surface of the drum, and the other end is provided with a ventilation path connected to a pressure reducing device. A closing rod is inserted into the ventilation path from the ventilation path opening, and unnecessary suction holes that do not suck the label among the suction holes connected to the ventilation path are closed to adjust the distribution of the suction holes to the label. By blocking unnecessary suction holes in this manner, a single labeling drum having suction holes distributed in a suction area corresponding to a label having the largest area can be used to stick a label of any size. be able to. In the present invention,
Unnecessary closing of the suction hole can be performed in a state where the sticking drum is arranged on the labeler, and thus there is no need to remove the drum. The closing rod is preferably provided with a head projecting outward from an air passage opening on the top surface for convenience of insertion and withdrawal, and preferably has a length reaching the lowermost suction hole. As the closing rod, a rod having a length corresponding to the distance between the top surface of the drum and each suction hole may be prepared in the number of the suction holes, and the rod having the length reaching the suction hole in the lowermost layer may be inserted into the length adjusting portion. May be provided and one type of closing rod may be used to make the adjustment. As an adjusting portion, an adjusting hole is provided in accordance with the distance between the suction hole and the top surface of the drum, and a stop pin is inserted into the hole to adjust the insertion length, thereby closing each suction hole with one rod. Alternatively, the ventilation path and the closing rod may be screwed together to adjust the insertion distance. For convenience of explanation, it has been described that an air passage opening for inserting a closing rod is provided on the top surface of the sticking drum. However, an air passage opening is provided on a surface opposite to the top surface of the sticking drum, and the closing rod is inserted from this surface. Alternatively, the closing rod may be inserted from both sides provided on both sides. The closing rod is inserted into the ventilation path from the opening of the ventilation path.However, when the sticking drum is operated, the force for extracting the closing rod does not act, so the diameter of the rod is made slightly smaller than the diameter of the opening of the ventilation path and the diameter of the ventilation path to reduce contact friction. By making it larger, it can be locked only by dropping. Of course, a fixing means such as an air passage opening and a screw may be used. Since the air passage opening is provided on the top surface of the drum in this manner, when the closing rod is inserted, the head of the closing rod does not protrude to the peripheral surface of the drum where the suction hole is disposed, so that there is an advantage that the label suction surface is not affected at all. is there. If the suction hole is closed by inserting the closing rod on the peripheral surface of the sticking drum, the peripheral surface of the drum becomes uneven, which not only adversely affects the pressure contact between the container and the label, but also causes the centrifugal force to act due to the rotation of the drum and the closing rod. However, there is a danger that it may come off from the suction hole, so that fixation is required, which is not preferable.

The heat-sensitive adhesive activating device disposed on the periphery 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 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 thermal glue activation device is a far infrared radiation heating device. The heating device provided opposite to the outer periphery of the attaching drum has at least 1 /
It is preferable to be provided so as to surround over 3 for the activation of the glue and the speed of labeling. 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. A far-infrared radiation heating device can also 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 sent 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.

The present invention does not make it indispensable to detect printing defects. Of course, such a detecting means can be arranged. However, there are very few malfunctions of the printing device, and there are fields in which printing defects are absolutely not allowed, such as medicine containers, and fields in which some unclear printing is allowed. In addition, since there is also a field in which a defect is removed when viewed in a box, the detection of a print defect is not indispensable because both fields of use are included. Although the heating effect is inferior, it does not remove near infrared heating.

[0012]

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. The label sheet is sent to the sticking drum by the feed roll 3. 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 sticking 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 sticking drum. The cutter 4 is formed by a rotary blade and a roll corresponding to the rotary blade. Reference numeral 5 denotes a sticking drum, and suction holes 6 for sucking labels are arranged on the peripheral edge of the sticking drums in such a manner that the suction holes 6 are distributed in an area covered by the labels. Reference numeral 22 denotes an exhaust passage provided in the sticking drum and connected to a suction hole, which is connected to a decompression pump. At a stage where the label is pressed against the container 10 by the pressing device 11 and is attached, suction is stopped. It is controlled so that the label can be easily attached. Reference numeral 8 denotes a glue activating device disposed opposite to the surface of the sticking drum. In this embodiment, a far-infrared radiating 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 roll 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.

FIG. 2 shows an embodiment in which a cutter comprising a backing plate 13 and a cutting blade 14 is provided on a sticking drum, and the other parts are the same as those in FIG. In this embodiment, a backing plate 13 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 14 hits the backing plate 13 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 15 denotes a suction drum. A label 17 cut to a predetermined size is held in a suction hole 16 of the drum by sucking a glue surface. 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. FIG. 4 shows a conventional sticking drum, in which suction holes 6 are distributed on the circumferential side surface of the sticking drum 5 according to the size of the label to form a suction portion. FIG. 5 is a cross-sectional view of the drum of FIG. 4, and 6 is a label suction hole, which is opened on the circumferential side of the drum,
It is connected to 2. The air passage is connected to a decompression device (not shown) of the drum, and the label 17 is sucked by the label suction hole. FIG. 6 shows a sticking drum for sucking and adsorbing a smaller label. The distribution of the suction holes 6 is smaller than that of the sticking drum of FIG. FIG. 7 is a cross-sectional view of FIG.
Is adsorbed. As described above, the conventional labeler prepares a plurality of sticking drums provided with suction holes having a distribution matching the size of the label, and replaces the sticking drum each time the label changes.

FIG. 8 shows an embodiment of the present invention. As is apparent from the sectional view of FIG.
It is connected to. One end of the air passage opens into the top surface of the drum, and the other end is connected to a pressure reducing device (not shown). FIG.
Numeral 21 is a wide suction portion formed by suction holes arranged in a wide distribution range corresponding to a large label. Reference numeral 20 denotes a narrow suction section in which suction holes are arranged in a narrow distribution range suitable for a small label to be suctioned in this embodiment. In the present embodiment, the closing rod 18 having a length equal to the distance between the top surface and the lower end of the leftmost suction hole is inserted into the four suction holes at the left end from the air passage opening on the top surface. Close. Next, of the suction holes in the second row from the left, the two suction holes from the top are inserted with the closing rod 18 having a length equal to the distance from the top surface to the lower portion of the second suction hole from the top, and the uppermost portion is connected to Close the second suction hole. The suction holes in the third and rightmost rows from the left are similarly closed. The closed state will be described with reference to FIG. The closing rod is inserted from the air passage opening on the top surface to the second suction hole from the top to close the suction holes, and the small labels 4 are sucked to the two remaining suction holes. In this way, by closing the suction hole of the sticking drum in FIG. 8 as necessary, it is possible to stick a variety of labels with one sticking drum.

FIG. 10 shows another embodiment in which the closing rod 18 is provided.
Has one end sealed and the other end opened as a hollow rod. Reference numeral 23 denotes a hollow portion of the rod, which communicates with the exhaust path of the drum through an opening. A plurality of ventilation holes 24 corresponding to the number of label suction holes are arranged in the body of the rod. Also, it is preferable that the ventilation holes are not linear in the axial direction but distributed on the peripheral surface of the rod because the range corresponding to the label size is widened. This rod is inserted into the ventilation path 12 from the ventilation opening of the sticking drum 5 as shown in FIG. 11, and the label suction hole 6 is closed. Then, the rod is rotated so that the required label suction hole 6 is closed. 2
4, the label suction holes 6 communicate with the exhaust path, and the labels are sucked by the label suction holes 16 connected to the suction holes.
When the closing rod of this embodiment is used, an unnecessary label suction hole can be sealed with a single rod corresponding to labels having different sizes.

[0017]

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.
The use of energy is reduced, the sticking speed is increased, and the label suction hole is adjusted by the closing rod, so that one sticking drum has an excellent effect of adapting to all labels.

[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 diagram of a conventional labeler.

FIG. 4 is an explanatory view of a sticking drum used for a conventional large label.

FIG. 5 is a cross-sectional view of the sticking drum of FIG.

FIG. 6 is an explanatory diagram of a sticking drum used for a conventional small label.

FIG. 7 is a sectional view of the sticking drum of FIG.

FIG. 8 is an explanatory diagram of a sticking drum used in the present invention.

9 is a sectional view of the sticking drum of FIG.

FIG. 10 is an explanatory view of another closing rod used in the present invention.

11 is an explanatory diagram of a label suction drum using the closing rod of FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Thermal label sheet wound in a roll 2 Cutting mark reader 3 Feed roll 4 Cutter 5 Adhering drum 6 Label suction hole 7 Printer 8 Thermal glue activation device 9 Conveyor 10 Adhered material 11 Pressing device 12 Air passage 13 Backing plate 14 Cutting blade 15 Suction drum 16 Suction hole of suction drum 17 Label 18 Closed rod 19 Closed rod head 20 Small label suction part 21 Large label suction part 22 Exhaust path 23 Hollow part of closed rod 24 Passage of closed rod wall Stoma

Claims (12)

[Claims] 1. A method comprising: a. A printing device for printing necessary items on the surface opposite to the adhesive surface of the label sheet, a feed roll provided in front of the printing device, b. A label sheet cutter disposed at a position where at least the tip of the cut label piece provided next to the roll contacts the suction hole of the sticking drum; c. A label suction unit formed by distributing label suction holes on the peripheral surface is provided, and an air passage is provided in which one end is opened to the top surface and the other end is connected to the decompression device, and the air passage is connected to the suction hole. A label suction / sticking drum comprising a sticking drum which has been inserted, and a closing rod which is removably inserted through an air passage opening on the top surface of the drum and closes unnecessary suction holes; d. A heat-sensitive adhesive activating device disposed on the periphery of the sticking drum so as to face the drum surface; e. A single-drum type heat-sensitive adhesive activation labeler, comprising a pressing device provided next to the activation device for pressing the fed object to be applied to an application drum and applying a label by rotation of the drum. 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 when viewed from the direction of movement of the sticking drum, and a cutting blade corresponding to the corresponding plate. 2. The single-drum type heat-sensitive adhesive activated labeler described in 2. 3. The single drum according to claim 1, wherein the label suction holes located on the drum are sticking drums distributed on the peripheral surface of the drum to form a label suction portion corresponding to a large label. Type heat sensitive paste activated labeler. 4. The single-drum type heat-sensitive adhesive activated labeler according to claim 1, wherein the closing rod is a closing rod having a length extending from a top surface of the drum to a suction hole of a lowermost layer. . 5. The closing rod according to claim 1, wherein the closing rod has a head that is not inserted into the air passage opening.
The single-drum type heat-sensitive glue-activated labeler described in the above item. 6. The single-drum type heat-sensitive adhesive activated labeler according to claim 1, wherein an adjusting portion for adjusting a length of the closing rod inserted into the ventilation path is arranged. 7. A closing rod is a hollow rod having one end sealed and the other end opened, and ventilation holes communicating with the label suction holes are provided at a plurality of positions on the body wall, and the opening is exhausted. The single-drum type heat-sensitive adhesive activation labeler according to any one of claims 1 to 6, wherein the labeler is a closed rod communicating with a road. 8. The single-drum type heat-sensitive adhesive according to claim 7, wherein the closing rod is a closing rod that is inserted from the ventilation path opening on the top surface of the drum and rotated to communicate the ventilation hole with a desired label suction hole. Activation labeler. 9. 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 and pressing the adherend by the pressing device to the sticking drum.
A single-drum type heat-sensitive glue-activated labeler according to any one of claims 1 to 8. 10. 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 the item. 11. 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 the item. 12. 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 for guiding the bonded object to the bonding drum and pressing the bonded object. A single-drum type heat-sensitive adhesive activated labeler as described in the item.