JPH09304887A - Method and device for peeling off label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide method and device for peeling off a label capable of rapidly peeling the label off by eliminating positioning with a jig from the direction orthogonally intersecting with the label winding direction for peeling off the label wound around a surface of a vessel in beltlike by adhesive. SOLUTION: The label 4 is wound around a unit main body 3 to be stuck by the adhesive. The unit main body 3 rolling up the cut end 17a of the label 4 over is placed on a support base 42. A pair of control members 40, 41 projecting at an interval wider than the width of the label 4 and narrower than the width of the unit main body 3 in the width direction of the label 4 are arranged on the support base 42. A chuck 43 is moved so as to hold the cut end 17a and take out it from between the control members 40, 41. The label 4 is peeled off by rolling while drawing the unit main body 3 close to the control members 40, 41 by the movement of the chuck 43.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label peeling method and device for peeling off a label which is attached to a surface of an object to be recycled or reused by a pressure sensitive adhesive in a strip shape.

[0002]

2. Description of the Related Art As one packaging form of a plastic or glass container, an adhesive applied to the back surface of a label printed for decoration uses a pressure-sensitive adhesive applied to the center of the front surface of the container, one end of which is the other end. There is one that is rolled and attached so that it overlaps with. This requires less packaging material than a cardboard that is folded into a box shape to cover it, thereby reducing the packaging cost, and at the same time achieving a reduction in external dimensions, which requires less display space. Used containers are
From the effective use of resources and consideration for the environment, it is collected by a trader, and after peeling the label, it is crushed and reused as a raw material, or a new label is attached and recycled.

There is a method of using a chemical to remove the label from the container. Although this can surely remove the label from the container, the chemical must use a harmful solvent which damages the container. There wasn't. Therefore, there has been proposed a method of effectively peeling the label without using a harmful solvent. For example, in Japanese Patent Application Laid-Open No. 6-106150 and Japanese Patent Application No. 7-206927, a container is rotatably positioned with a jig in a direction orthogonal to the label winding direction, and the label is rotated while the container is rotated. The peeling is performed.

[0004]

In the above-mentioned one, the structure is such that the container is positioned by the jig in the direction orthogonal to the label winding direction and the label is peeled off. It was essential to position the tool with high precision. Therefore, there is a problem that it takes time to position the container.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and provides a label peeling method and device capable of peeling a label at high speed without requiring fine positioning of the container. The purpose is to do.

[0006]

In order to achieve the above object, the present invention provides a label peeling method for peeling off a label that is attached to a surface of an object to be recycled or reused by an adhesive in a strip shape. Turn up one end of the object from the surface of the object, restrict the movement of the object in one direction when grasping one end and pulling in one direction, and target the object around an arbitrary axis orthogonal to the one direction. An object is rotatably supported and a label is torn off while the object is rolled by a pulling force on one end.

The label is affixed around the surface of the object so that the front end and the rear end of the label overlap each other, and a cutting blade inserted between one side edge of the label and the surface of the object is attached to the other. The label is cut in the width direction by moving it toward the side edge, and one of the cut ends by this cutting is turned up from the surface of the object to obtain one end.

[0008] As a device for peeling off a label attached by winding a strip in a strip shape on the surface of an object to be recycled or reused, a support base on which the object with one end of the label turned up is placed, A pair of regulating members, which are wider than the width of the label on the support base and project at intervals narrower than the width of the object in the width direction of the label,
A label gripping unit that grips one end of the rolled-up label and moves so as to pull it out from between the pair of regulating members, and the label is rolled by moving the label gripping unit while pulling the object toward the regulating member. Is to be peeled off.

[0009]

Embodiments of the present invention will be described below. In FIGS. 6 and 7 showing a front perspective view and a bottom perspective view of the lens-fitted film unit, the lens-fitted film unit 2 is provided with a photographing mechanism and the film is incorporated in advance, and the unit main body 3 has an overall rectangular parallelepiped shape.
And a label 4 having a decorative print on its surface. The label 4 is wrapped around the central portion of the front surface of the unit main body 3 by an adhesive applied to the back surface thereof and attached.

The unit main body 3 has a cartridge chamber for accommodating a cartridge and a film chamber for accommodating the photographic film drawn from the cartridge in a roll form. As shown in FIG. 6, on the left side of the front surface of the unit main body 3, there is formed a projecting portion 7 that projects in accordance with a cartridge storage chamber for storing the cartridge. On the right side of the front surface of the unit main body 3, a strobe light emitting section 5 and a strobe charging start button 6 for starting the charging of the strobe are provided.

At the center of the front surface of the unit main body 3, there is provided a projecting portion 9 projecting corresponding to the portion where the shutter mechanism and the taking lens 8 are incorporated, and a finder window 10.
A shutter button 12 is provided integrally on the upper surface of the unit body 3 and a counter window 13 is opened. The finder window 10, the counter window 13 and the like are exposed to the outside through openings provided in each part of the exterior label 4.

In FIG. 8 showing a plan view of the front side of the label 4, the label 4 is formed in a band shape, and openings for exposing the raised portion 9, the finder window 10 and the like are provided in each portion. An overlapping margin 15 is provided at one end of the label 4, and a bottom cover 16 that covers the bottom surface of the unit body 3 is provided at the other end. When the label 4 is wrapped around the central portion of the front surface of the unit body 3 with the adhesive applied to the back surface, the bottom cover portion 16 is stuck on the stacking margin 15 at the bottom surface of the unit body 3.

A perforation 19 for peeling the label is formed at the boundary between the back cover portion 17 that covers the back surface of the unit main body 3 and the overlap margin 15. This perforation 19 is labeled 4
From one side end 4a of one side to the other side edge 4b,
It is extended in the width direction. Reference numeral 21 denotes a perforation that is broken when the lid 26 is opened at the time of removing the cartridge.

FIG. 7 is a bottom perspective view of the lens-fitted film unit, in which the label 4 is indicated by a chain double-dashed line. The bottom surface of the unit main body 2 is provided with lids 25 and 26 on both sides for closing the film chamber and the cartridge chamber in a light-tight manner. Since the lids 25 and 26 are partially covered with the label 4, they are prevented from being opened accidentally.

In order to surely insert a knife 36, which will be described later, between the unit body 3 and the label 4, the edge of the rear surface of the unit body 3 near the position where the perforations 19 of the label 4 intersect. The first concave portion 27 for peeling the label is formed at a portion of the label 4 that is partially exposed from one side edge 4a of the label 4. The first concave portion 27 has a cylindrical bottom surface 27a in a direction orthogonal to the side edge 4a.

A second recess 30 for peeling the label is formed at a position where the perforation 19 passes in the edge portion 28 between the back surface and the bottom surface of the unit main body 3. In the second recess 30,
Between the back surface and the bottom surface of the unit body 3, an inclined bottom surface 30a having a depth that gradually decreases in a direction orthogonal to the perforations 19 is formed.

A film unit 2 with such a lens
After the photographing is completed, all the exposed photographic films are rolled up and stored in the patrone, and are submitted to the developing laboratory as they are. In the developing station, the lid 26 is pry open, the cartridge is taken out, and the developed print processing is performed. The lens-fitted film unit 2 from which the photographic film has been removed is collected by the manufacturer, and the label 4 is peeled off from the unit main body 3 in the procedure described later. The unit main body 3 from which the label 4 has been peeled is disassembled into a plurality of parts, and after each inspection, a passed product is reused as a component as it is, and a rejected product is crushed and dissolved to be used as a raw material.

An embodiment related to peeling the label 4 from the unit body 3 will be described below. FIG. 4 shows an embodiment in which the label is cut in the width direction. A passage 35 is formed between the guide 33 and the guide 34 to convey the used lens-equipped film unit 2 in the arrow direction. A knife 36 is provided on the passage 35 for cutting the perforations 19 and exposing the second recess 30 during the transportation of the lens-fitted film unit 2.

The lens-fitted film unit 2 has a passage 35.
While being conveyed in the arrow direction, the tip end portion 36a of the knife 36 enters the first recess 27. The knife 36 is made of an elastic material such as spring steel or a saw blade, and is arranged with its tip portion 36a tilted downward. The deviation in the direction of travel is the guide 33, 34
The film unit with lens 2 is regulated by
Even if the positioning of the
It can be inserted into the recess 27. The fine positioning of the lens-fitted film unit 2 and the knife 36 is unnecessary, and the cutting speed is increased.

The tip portion 36a that has entered the first recess 27 moves along the bottom surface 27a and enters between the back surface of the unit body 3 and the back cover portion 17 that covers it. Knife 36
Is a perforation 19 while peeling off the rear cover 17.
The outer label 4 is cut along the line to expose the second concave portion 30. Since the knife 36 has a thin and wide fin blade shape, the back cover portion 17 is peeled off when the perforations 19 are cut. Therefore, not only the second concave portion 30 is reliably exposed, but also the rear cover portion 17 can be easily turned over later. The surface of the knife 36 is subjected to a fluorescing process to prevent a cutting error caused by sticking to the adhesive surface during cutting. Further, in order to further improve the slippage and prevent cutting mistakes reliably, the surface of the knife 36 may be subjected to a surface treatment such as Teflon finish or satin finish to further increase the non-stickiness. There is also a method of applying a material such as a surfactant that reduces slip resistance to the knife.

In addition to this, the label 4 may be cut with a normal knife. Further, it may be blown by a light beam such as a laser or a light beam, a knife heated to a high temperature, a heating wire or the like. It is also possible to use a wider fin blade so that the back cover portion 17 is largely turned at the time of cutting, and the turning back by the turning up member 37 described later is omitted.

FIG. 5 is a perspective view showing an embodiment of a method of turning over the cut end of the label. A rod-shaped roll-up member 37 is inserted into the second recess 30 along the bottom surface 30a, the rear cover 17 is pushed from the back surface side by the tip end 37a of the roll-up member 37, and the cut is made by cutting the perforations 19 described above. The end 17a is turned up to the back side of the lens-fitted film unit 2.

The method of rolling up the cut end 17a is not limited to this. For example, a method of rolling up the cut end 17a by blowing compressed air from the back side, or a plate having the non-adhesive processing described above on its surface is used. A cut-up guide or roller may be pressed against the cut end 17a to form a curl. Further, the surface of the label 4 may be adsorbed by adsorption air or the like to be turned up.

FIG. 1 shows an embodiment of an apparatus for peeling a label whose cut end is turned up from a unit body. The device includes a pair of regulating members 40 and 41, a support base 42, and a chuck 43. The restriction members 40 and 41 are provided on the support base 42 so as to project at a width wider than the label 4 and narrower than the width of the unit body 3 in the width direction of the label 4. Chuck 4
3 grips the cut end 17a and controls the restriction members 40 and 41.
It moves in the direction of the arrow so as to pull it out from between. The movement of the chuck 43 causes the unit body 3 to be attracted to the regulating members 40 and 41. The unit main body 3 is restricted from moving together by the restricting members 40 and 41, and is rolled on the restricting members 40 and 41 by a pulling force so that the label 4 is peeled off.

When the unit body 3 rolls, the unit body 3
Since the regulation members 40, 41 rub against each other, the regulation members 40, 4
The surface on which the unit body 3 of No. 1 rubs is formed by a smooth low friction surface to weaken the friction between them. Therefore, the rolling of the unit body 3 can be performed smoothly at high speed,
At the same time, the unit body 3 is prevented from being scraped or scratched and the label 4 is prevented from being cut off.

In order to prevent twisting of the label 4 during peeling of the label 4, as shown in the figure, the regulating member 4 is used.
The guide rod 39 may be horizontally provided between 0 and 41. When the chuck 43 moves the cut end 17a passing through the guide rod 39, the label 4 is fed while being horizontally supported by the guide rod 39, so that twisting is prevented.

As shown in FIG. 3, the chuck 43 comprises an upper member 46 and a lower member 47. The tip ends of the upper member 46 and the lower member 47 are respectively provided with a convex portion 46a and a concave portion 47a for the convex portion 46a, and the cut end 17a is sandwiched between them, so that a sufficient retaining effect can be obtained. In addition, since the area where the label 4 sticks to the adhesive surface is small, it is easy to remove. The chuck 43 is at a position where the cut end 17a of the back cover portion 17 is gripped (see FIG.
(A)) and the position where the label 4 is completely peeled off (see FIG. 2).
Move horizontally between (e)).

The manner of peeling the label 4 from the unit body 3 will be described below. Film unit with lens 2
Place it on the support table 42, and use the chuck 43 to
2a is grasped between the regulating members 40 and 41 as shown in FIG. 2A, and the chuck 43 is moved in the arrow direction to move the label 4
Pull. Then, as shown in FIGS. 2B to 2D, the pulling force causes the unit body 3 to move to the restricting member 4.
0, 41, and the movement in the arrow direction is restricted by the restriction members 40, 41.
Rolls on the restricting members 40 and 41 to peel off the label 4 at high speed. As shown in FIG. 2E, when the label 4 is completely peeled off from the unit main body 3, the unit main body 3 falls on the support table 42 in an upward state. The pulling force of the cut end 17a in this case is 3 to 5 kgf.

As described above, since the label 4 can be peeled off by rolling while pulling the unit body 3 toward the regulating members 40 and 41, the unit body 3 can be wound in the winding direction of the label 4 using a jig or the like. Labeling can be done in a short time because positioning from the direction orthogonal to is unnecessary.

As another method of pulling the cut end 17a, instead of the chuck 43, a pair of nip rollers are arranged to nip the cut end 17a, and the cut end 17a is pulled by the rotation of the nip roller, or a belt having an adhesive surface. You may make it stick and peel off using a conveyor. Further, it may be pulled by the suction air of the suction tube, or the cut end 17a may be wound around the winding shaft and pulled by the rotation of the winding shaft.

The device of the present invention is not limited to the one for removing the label 4 attached to the unit body 3. It is possible to satisfactorily peel off a container such as a bottle or a plastic bottle made of plastic or glass or the like which is a target of recycling or reuse, as well as a container having a round tubular shape or having corners or irregularities in each part. The label attached to the film cartridge whose outer case is made of plastic can also be peeled off.

The restricting members 40 and 41 are not limited to the low friction surface, but may be the high friction surface. The high-friction surface is crushed after peeling the label without causing any problem even if it is scratched or scraped by strong friction with a container such as a round tubular bottle or a PET bottle that has little rotational friction, or with the restricting members 40 and 41. It is most suitable for peeling a label from a container in the form of being reused.

When the label is peeled off from a container such as a bottle or a PET bottle, a pretreatment may be carried out. As a pretreatment, the label may be heated with a heater or the like, or the label may be dipped in hot water, an alkaline aqueous solution or the like to reduce the adhesive strength. Further, if the label has a characteristic that the adhesive force is reduced with respect to ultraviolet rays, low temperature or high temperature, the characteristic may be utilized to irradiate ultraviolet rays or to apply cold air or hot air. Such pretreatment facilitates label peeling and makes it difficult to cut the label even if it is pulled at a high speed. Therefore, the pulling speed can be increased to shorten the time required for each treatment.

[0034]

As described above, according to the method of the present invention,
As a method of peeling off the label that is wrapped around the surface of the object to be recycled or reused with an adhesive, peel off one end of the label, grasp one end and pull in one direction. Sometimes the object is restricted from moving in one direction, and the object is rotatably supported around an arbitrary axis orthogonal to the one direction, and the object is rolled by a pulling force on one end. Since the label is peeled off while the label is peeled off, the label can be peeled off at high speed, and the positioning of the object is not necessary, so that the processing time can be shortened.

Further, according to the apparatus of the present invention, when the label which is wound around the surface of the object to be recycled or reused by the adhesive is wound and attached, is peeled off,
A support base on which an object with one end of the label turned up is placed, and a pair of a pair of protrusions on the support base that are wider than the width of the label and are narrower than the width of the object in the width direction of the label. It is equipped with a regulation member and a label grasping means for grasping one end of the rolled-up label and moving it so as to pull it out from between the pair of regulation members. The movement of the label grasping means causes the object to roll while attracting the object to the regulation member. Since the label is peeled off, it is possible to peel off a label attached to an object with rounded corners or dents at high speed without using chemicals, etc. it can. Further, since it is unnecessary to position the object, the peeling time can be shortened accordingly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a label peeling device.

FIG. 2 is a side surface plan view showing how a label is peeled off.

FIG. 3 is an enlarged view of a chuck.

FIG. 4 is a perspective view showing an embodiment in which a label is cut at perforations.

FIG. 5 is a perspective view of an essential part showing an embodiment in which a cut end of a label is raised.

FIG. 6 is a front perspective view of a lens-fitted film unit.

FIG. 7 is a bottom side perspective view of the lens-fitted film unit.

FIG. 8 is a plan view of the label as seen from the front side.

[Explanation of symbols]

 2 film unit with lens 3 unit body 4 label 4a, 4b side edge 17a cut end 19 perforation 27 first recess 30 second recess 40, 41 regulating member 42 support base 43 chuck

Claims (3)

[Claims] 1. A method of peeling off a label attached to a surface of an object to be recycled or reused by wrapping it in a strip shape with an adhesive, wherein one end of the label is turned up from the surface of the object,
When the one end is grasped and pulled in one direction, the movement of the object in the one direction is regulated, and the object is rotatably supported around an arbitrary axis orthogonal to the one direction. The label peeling method, wherein the label is peeled off while rolling the object by the pulling force applied to the one end. 2. The label is attached such that the front end and the rear end of the label overlap each other around the surface of the object, and a cutting blade inserted between one side edge of the label and the surface of the object is used. 2. The label peeling according to claim 1, wherein the label is moved toward the other side edge to cut the label in the width direction, and one of the cut ends by this cutting is turned up from the surface of the object to obtain the one end. Method. 3. A method of peeling off a label attached to a surface of an object to be recycled or reused by wrapping it in a strip shape with an adhesive, and a support stand on which the object with one end of the label turned up is placed. , A pair of restriction members that are wider than the width of the label on the support base and that are protruded at a narrower interval than the width of the object in the width direction of the label, and grip the one end of the flipped label, A label gripping unit that moves so as to pull out from between the pair of restriction members, and the label is peeled off by rolling the object while pulling the target object toward the restriction member by the movement of the label gripping unit. Label peeling device.