JP2016055908A - Label attaching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase accuracy in attaching a label to an object.SOLUTION: A label attaching device includes: a bending mechanism 100; and an attaching head. The bending mechanism 100 bends the label L with two ends E separated apart from each other to form a bent part FL directing downward. The attaching head jets air downward to the label L to attach the label L to the object.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a label sticking device.

  Some products such as food distributed in the market are distributed on a tray and packaged in a film. Such a package is affixed with a label describing the product name, price, and the like. Labeling is automatically performed by a labeling device.

  Japanese Patent Application Laid-Open No. 2004-136931 discloses an example of a label sticking device. This label sticking apparatus sticks a label to an object by blowing air toward the label on which a paste is applied on the back surface and blowing the air toward the object to be pasted.

  While the label is blown toward the object, the label is affected by various factors such as air resistance, label shape, label material, and the like. For this reason, the movement of the label in the air tends to be unstable. In addition, depending on the shape, material, and surface condition of the object, the label may move along the surface of the object or be splashed off the surface of the object after first contacting the object. . As a result, problems such as the label sticking to an inappropriate position, the label tilting at an inappropriate angle, or the label failing to stick to the object may occur.

  An object of the present invention is to improve accuracy in attaching a label to an object.

  The label sticking device according to the first aspect of the present invention includes a bending mechanism and an air injector. The bending mechanism bends a label having two end portions that are spaced apart from each other to form a downward bending portion between the two end portions. The air ejector ejects air downward toward the label in order to attach the label to the object.

  According to this configuration, the label moving in the air from the air injector toward the object has the bent portion. As a result, it becomes easy to apply the label appropriately to the object.

  The label sticking device according to the second aspect of the present invention is the label sticking device according to the first aspect, wherein the lowest part of the bent portion is located at approximately the same distance from the two end portions.

  According to this configuration, the label is given a symmetrical shape. As a result, the movement of the label in the air tends to be stable.

  In the label sticking device according to the third aspect of the present invention, in the label sticking device according to the first aspect or the second aspect, the bent portion is a curved portion.

  According to this configuration, the label in which the shape of the bent portion is maintained is easily attached to the object, and the appearance of the label after being attached to the object is kept beautiful.

  In the label sticking device according to the fourth aspect of the present invention, in the label sticking device according to the first aspect or the second aspect, the bent portion is a single fold or a plurality of folds.

  According to this configuration, the shape of the bent portion is easily stabilized. In addition, when the label first contacts the object, the contact pressure that the label and the object receive from each other increases, and it is easy to obtain the initial adhesive adhesion. As a result, it becomes easier to reliably attach the label to the object.

  In the label sticking device according to the fifth aspect of the present invention, in the label sticking device according to the first or second aspect, the bent portion is a single or a plurality of raised portions.

  According to this configuration, the shape of the bent portion is likely to be more stable.

  The label sticking device according to a sixth aspect of the present invention is the label sticking device according to any of the first to fifth aspects, further comprising a printing mechanism and a transport mechanism. The printing mechanism prints on the label. The transport mechanism transports the label in the order of the bending mechanism, the printing mechanism, and then the air ejector.

  According to this configuration, the bending mechanism is disposed in front of the printing mechanism. As a result, a relatively wide space in front of the printing mechanism can be used to arrange the bending mechanism.

  The label sticking device according to a seventh aspect of the present invention is the label sticking device according to any of the first to fifth aspects, further comprising a printing mechanism and a transport mechanism. The printing mechanism prints on the label. The transport mechanism transports the label in the order of the printing mechanism, the bending mechanism, and then the air ejector.

  According to this configuration, the bending mechanism is disposed after the printing mechanism. As a result, since the label is not bent before printing, it is possible to suppress deterioration in printing quality.

  The label sticking apparatus according to an eighth aspect of the present invention is the label sticking apparatus according to the sixth aspect or the seventh aspect, wherein the lowest part of the bent portion extends in parallel with the label transport direction.

  According to this configuration, it is easy to simplify the structure of the bending mechanism.

  In the label sticking device according to the ninth aspect of the present invention, in the label sticking device according to the sixth aspect or the seventh aspect, the lowest part of the bent portion extends in a direction orthogonal to the conveyance direction of the label.

  According to this configuration, a bent portion extending in the width direction perpendicular to the transport direction can be formed even for a label having a short dimension in the transport direction. As a result, it is easy to ensure a large contact area when the label first contacts the object.

  According to the label sticking apparatus according to the first aspect of the present invention, it becomes easy to stick a label appropriately to an object.

  According to the label sticking device according to the second aspect of the present invention, the movement of the label in the air is likely to be stable.

  According to the label applicator according to the third to fifth aspects of the present invention, the shape of the bent part of the label is easily maintained.

  According to the label sticking device of the sixth aspect of the present invention, it is easy to secure a space for arranging the bending mechanism.

According to the label sticking device according to the seventh aspect of the present invention, it is possible to suppress a decrease in printing quality. According to the label sticking device according to the eighth aspect of the present invention, it is easy to simplify the structure of the bending mechanism.

  According to the label sticking device of the ninth aspect of the present invention, it is easy to ensure a large contact area when the label first contacts the object.

The figure which shows the one aspect | mode of the bending part of a label. The figure which shows the other one aspect | mode of the bending part of a label. The figure which shows the other one aspect | mode of the bending part of a label. The figure which shows the other one aspect | mode of the bending part of a label. The schematic side view of the label sticking apparatus which concerns on 1st Embodiment of this invention. The front view of the bending mechanism 100 of the label sticking apparatus which concerns on 1st Embodiment of this invention. The front view of the bending mechanism 100A of the label sticking apparatus which concerns on the modification 1A of 1st Embodiment of this invention. The front view of the bending mechanism 100B of the label sticking apparatus which concerns on the modification 1B of 1st Embodiment of this invention. The front view of the bending mechanism 100C of the label sticking apparatus which concerns on the modification 1C of 1st Embodiment of this invention. The top view of the gear 150C of the bending mechanism of the label sticking apparatus which concerns on the modification 1C of 1st Embodiment of this invention. The schematic side view of the label sticking apparatus which concerns on modification 1D of 1st Embodiment of this invention. The front view of the bending mechanism 100D of the label sticking apparatus which concerns on modification 1D of 1st Embodiment of this invention. The schematic side view of the label sticking apparatus which concerns on 2nd Embodiment of this invention. The side view of the bending mechanism 200 of the label sticking apparatus which concerns on 2nd Embodiment of this invention. The front view of the bending mechanism 200 of the label sticking apparatus which concerns on 2nd Embodiment of this invention. The side view of the bending mechanism 200A of the label sticking apparatus which concerns on the modification 2A of 2nd Embodiment of this invention. The front view of the bending mechanism 200A of the label sticking apparatus which concerns on the modification 2A of 2nd Embodiment of this invention. The schematic side view of the label sticking apparatus which concerns on the modification 2B of 2nd Embodiment of this invention. The side view of the bending mechanism 200B of the label sticking apparatus which concerns on the modification 2B of 2nd Embodiment of this invention. The front view of the bending mechanism 200B of the label sticking apparatus which concerns on the modification 2B of 2nd Embodiment of this invention. The side view of the bending mechanism 200C of the label sticking apparatus which concerns on the modification 2C of 2nd Embodiment of this invention. The front view of the bending mechanism 200C of the label sticking apparatus which concerns on the modification 2C of 2nd Embodiment of this invention. The schematic side view of the label sticking apparatus which concerns on 3rd Embodiment of this invention. The front view of the bending mechanism 300 of the label sticking apparatus which concerns on 3rd Embodiment of this invention. The side view of the roller 320 of the bending mechanism 300 of the label sticking apparatus which concerns on 3rd Embodiment of this invention. The front view of the bending mechanism 300A of the label sticking apparatus which concerns on the modification 3A of 3rd Embodiment of this invention. The side view of the roller 320A of the bending mechanism 300A of the label sticking apparatus which concerns on the modification 3A of 3rd Embodiment of this invention. The schematic side view of the label sticking apparatus which concerns on the modification 3B of 3rd Embodiment of this invention. The perspective view of the sticking head to which the bending mechanism 300B of the label sticking apparatus which concerns on the modification 3B of 3rd Embodiment of this invention was attached.

<Definition of terms>
This specification refers to a mechanism for bending the label. As used herein, the term “bend” includes various aspects as illustrated in FIGS. 1A-1D. FIG. 1A shows an aspect in which the bent portion FL of the label L is a curved portion. FIG. 1B shows a mode in which the bent portion FL of the label L is a single fold. FIG. 1C shows a mode in which the bent portion FL of the label L is a plurality of folds. The region between the plurality of folds is curved more gently than the folds. FIG. 1D shows an aspect in which the bent portion FL of the label L is a plurality of raised portions that protrude downward. These ridges do not extend in a specific direction, i.e. are point-like. The “bending” mode is not limited to these examples, and may include various other modes.

<First Embodiment>
(1) Overall Configuration FIG. 2 shows a label sticking device 10 according to the first embodiment of the present invention. The label sticking apparatus 10 includes a housing 20, a transport mechanism 30, a printing unit 40, a peeling mechanism 50, a sticking head 60, a placement unit 80, and a bending mechanism 100.

(2) Detailed configuration (2-1) Transport mechanism 30
The transport mechanism 30 is a mechanism that transports the label L in the transport direction X along the transport path FP. The conveyance path FP starts from the label roll 70 and reaches the sticking head 60 through the bending mechanism 100 and the printing unit 40 in order.

  The unpeeled tape 71 drawn out from the label roll 70 is obtained by pasting a large number of labels L on a tape-like mount 72. The back surface of the label L is a glue surface to which glue is applied, and is attached to the mount 72.

(2-2) Bending mechanism 100
The bending mechanism 100 bends the unpeeled tape 71 including the label L. As shown in FIG. 2, in the present embodiment, the bending mechanism 100 is provided at a location on the transport path FP before the printing unit 40.

  FIG. 3 shows the structure of the bending mechanism 100. The bending mechanism 100 includes a bending table 110 and a roller 120. The bending table 110 and the roller 120 are arranged so as to sandwich the label L. The bending table 110 has two inclined surfaces that form a predetermined angle. The roller 120 may be configured to press the label L toward the bending base 110 with a spring.

  By passing through the bending mechanism 100, a bent portion FL is formed between the two end portions E of the label L. The bent portion FL has a curved shape having a predetermined radius of curvature (see FIG. 1A). The valley V, which is the lowest part of the bent portion FL, is located at approximately the same distance or completely at the same distance from the two ends E, and extends in parallel with the transport direction X.

  By changing the shapes of the bending base 110 and the roller 120, the curvature radius of the curved shape of the bending portion FL can be changed variously. It is considered that the smaller the radius of curvature, the easier it is to maintain the shape of the bent portion FL. For example, a label L having a curvature radius of 3 mm is expected to maintain a curved shape more stably than a label L having a curvature radius of 5 mm or less.

  Returning to FIG. 2, the unpeeled tape 71 that has come out of the bending mechanism 100 becomes a flat shape due to restraining forces received from various rollers of the transport mechanism 30. However, the flat label L is in a so-called “skinned” state in which the bent shape can be restored again when released from the restraining force.

(2-3) Printing unit 40
The printing unit 40 prints information such as the price, weight, and expiration date of the product that is the object 90 to which the label L is attached on the label L.

(2-4) Peeling mechanism 50
The peeling mechanism 50 peels the label L from the non-peeling tape 71 and separates the label L and the mount 72, and is composed of, for example, a plate or shaft having an edge, or a small-diameter roller.

(2-5) Pasting head 60
The sticking head 60 can suck and hold the label L by sucking air. The sticking head 60 can also blow and stick the label L toward the object 90 by jetting air.

  The pasting head 60 is, for example, an air nozzle device connected to an electromagnetic valve connected to both a vacuum pump and an air source.

(2-6) Placement unit 80
The placement unit 80 is for placing an object 90 to which the label L is attached.

  The placement unit 80 is, for example, a location directly below the pasting head 60 in the belt conveyor. The belt conveyor may have a measuring unit that measures the weight of the object 90.

  Note that the object 90 may be various. For example, the object 90 is a food that is placed on a tray and packaged with a film.

(3) Basic operation The label sticking apparatus 10 first recognizes the object 90 sent to the placement unit 80, and acquires information such as the price, weight, and expiration date of the object 90.

  The transport mechanism 30 transports the unpeeled tape 71 drawn from the label roll 70 along the transport path FP. The unpeeled tape 71 including the label L is given a bent shape while passing through the bending mechanism 100, and is brought into a so-called “skinned” state. After exiting the bending mechanism 100, the unpeeled tape 71 is made into a flat shape by restraining forces received from various rollers of the transport mechanism 30 and the like. However, since the label L is in a “skinned” state, the bent shape can be recovered again when released from the restraint.

  Next, the unpeeled tape 71 is printed by the printing unit 40 with information such as the price, weight, and expiration date of the product that is the object 90. Thereafter, the peeling mechanism 50 separates the label L from the mount 72. The label L is sent to the sticking head 60.

  The sticking head 60 sucks the label L by sucking air and waits until the object 90 is placed on the placement unit 80. Thereafter, when the object 90 reaches the placement unit 80, the sticking head 60 blows off the label L toward the object 90 by ejecting air. As a result, the label L is attached to the object 90.

(4) Features (4-1)
According to this configuration, since the flat label L held by the sticking head 60 is in the “skinned” state, the label L is moving in the air from the sticking head 60 toward the object 90. In addition, the shape of the bent portion FL is recovered. As a result, the label L can be easily applied to the object 90 appropriately.

(4-2)
According to this configuration, the label L is given a symmetrical shape. As a result, the movement of the label L in the air tends to be stable.

(4-3)
According to this configuration, the bent portion FL of the label L is a curved portion (see FIG. 1A) having a predetermined radius of curvature. When the label L moving in the air comes into contact with the object 90, the curved portion first comes into contact with the object 90. Depending on the radius of curvature and other shapes of the curved portion forming the bent portion FL, when the bent portion FL first contacts the object 90, the contact pressure that the label L and the object 90 receive from each other increases, and the initial adhesion of the glue is increased. May improve. As a result, the label L is more easily attached to the object 90 more appropriately. Further, since the bent portion FL is a curved portion, the appearance of the label L after being attached to the object 90 is kept beautiful.

(4-4)
According to this configuration, the bending mechanism 100 is disposed in front of the printing unit 40. As a result, a relatively wide space in front of the printing unit 40 can be used for arranging the bending mechanism 100.

(4-5)
According to this configuration, the structure of the bending mechanism 100 is simple.

(5) Modifications Modifications of the first embodiment are shown below. It should be noted that a plurality of modified examples may be appropriately combined within a range that is consistent with each other.

(5-1) Modification 1A
FIG. 4 is a modification 1A of the first embodiment. In this modification, instead of the bending mechanism 100 of the first embodiment, a different bending mechanism 100A is used. The bending mechanism 100A includes a bending base 110A and a roller 120A. The bending base 110A and the roller 120A are arranged so as to sandwich the entire label L. The roller 120A may be configured to press the label L toward the bending base 110A by a spring.

  By passing through the bending mechanism 100A, a bent portion FL having a curved shape over the entire width sandwiched between the two end portions E of the label L is formed.

(5-2) Modification 1B
FIG. 5 is another modification 1B of the first embodiment. In this modification, instead of the bending mechanism 100 of the first embodiment, a different bending mechanism 100B is used. The bending mechanism 100B includes a sharp guide 130B and two rollers 140B. The sharp guide 130B has two inclined surfaces that form a sharp angle. The sharp guide 130B may be configured to press the label L toward the two rollers 140B by a spring. The label L is deformed to have a sharp angle according to the shape of the sharp guide 130B. In addition, the valley V, which is the lowest part in the bent portion FL, is formed as a fold by being sandwiched between the two rollers 140B.

  According to this configuration, since the valley portion V of the bent portion FL is a fold line (see FIG. 1B), the shape of the bent portion FL is more stable. In addition, when the label L comes into contact with the object 90, the fold of the label L first comes into contact with the object 90, so that the contact pressure that the label L and the object 90 receive from each other increases, and the initial adhesion of the glue Easy to get. As a result, the label L can be easily attached to the object 90 reliably.

(5-3) Modification 1C
6A and 6B show another modification 1C of the first embodiment. In this modification, instead of the bending mechanism 100 of the first embodiment, a different bending mechanism 100C is used. The bending mechanism 100C includes a sharp guide 130C and two gears 150C. The sharp guide 130C has two inclined surfaces that form a sharp angle. The two gears 150C are engaged with each other, and each gear 150C is provided with a pressing portion 140C. The pressing portion 140C protrudes to the vicinity of the circumference of the gear 150C only at a part of the circumference of the gear 150C. The two gears 150 </ b> C rotate in accordance with the conveyance speed of the unpeeled tape 71 including the label L.

  According to this configuration, the bent portion FL formed in the label L is a plurality of intermittent folds (see FIG. 1C). Since the contact pressure between the label L and the object 90 is increased at the place where the fold is formed, the label L can be easily attached to the object 90.

(5-4) Modification 1D
7 and 8 show another modification 1D of the first embodiment.

  As shown in FIG. 7, the bending mechanism 100 </ b> D of this modification is provided between the printing unit 40 and the pasting head 60, unlike the bending mechanism 100 (see FIG. 2) of the first embodiment. The bending mechanism 100D bends the label L that has already been separated from the mount 72 and has an adhesive surface exposed.

  FIG. 8 shows the structure of the bending mechanism 100D of this modification. The bending mechanism 100D includes a roller 150D that presses the label L from above, and two non-adhesive rollers 160D that do not adhere to the glue surface of the label L.

  According to this configuration, the bending mechanism 100D is disposed after the printing unit 40. As a result, since the label is not bent before printing, it is possible to suppress deterioration in printing quality.

Second Embodiment
(1) Overall Configuration FIG. 9 shows a label sticking device 10 according to the second embodiment of the present invention. The label sticking device 10 is common to the first embodiment in that it includes a housing 20, a transport mechanism 30, a printing unit 40, a peeling mechanism 50, a sticking head 60, and a placement unit 80. However, the label sticking device 10 according to the second embodiment has a bending mechanism 200 having a structure different from that of the bending mechanism 100 of the first embodiment.

(2) Bending mechanism 200
As shown in FIG. 9, the bending mechanism 200 is provided at a location on the transport path FP before the printing unit 40.

  10A and 10B show the structure of the bending mechanism 200. FIG. The bending mechanism 200 includes a pressing plate 210, two bending rollers 220, and a plurality of conveying rollers 230.

  When the label L is transported in the transport direction X, the pressing plate 210 moves up and down at a predetermined interval and pushes the label L between the two bending rollers 220.

  When passing through the bending mechanism 200, a bent portion FL is formed in the label L. The valley portion V, which is the lowest portion in the bent portion FL, is formed as a fold line (see FIG. 1B) and extends in the label width direction orthogonal to the transport direction X. Depending on the control sequence of the transport mechanism 30 and the pressing plate 210, the valley V, which is the lowest part of the bent portion FL, can be positioned at approximately the same distance or completely at the same distance from the two ends E.

(3) Features According to this configuration, the bent portion FL extending in the label width direction orthogonal to the transport direction X can be formed even for the label L having a short dimension in the transport direction X. As a result, when the label L first contacts the object 90, it is easy to ensure a large contact area. Furthermore, since the bent portion FL of the label L is a crease, the pressure that the label L and the object 90 receive from each other when the bent portion FL first contacts the object 90 increases, and it is easy to obtain the initial adhesive adhesion. .

(4) Modification Examples of the second embodiment are shown below. It should be noted that a plurality of modified examples may be appropriately combined within a range that is consistent with each other.

(4-1) Modification 2A
11A and 11B are a modification 2A of the second embodiment. In this modification, instead of the bending mechanism 200 of the second embodiment, a different bending mechanism 200A is used. The bending mechanism 200A includes a pressing plate 210A, four bending rollers 220A, and a plurality of conveying rollers 230. The four bending rollers 220A are arranged two by two apart from each other in the label width direction orthogonal to the transport direction X.

  According to this configuration, the bent portion FL formed in the label L is a plurality of intermittent folds (see FIG. 1C). Since the contact pressure between the label L and the object 90 is increased at the place where the fold is formed, the label L can be easily attached to the object 90.

(4-2) Modification 2B
12, 13A, and 13B are another modification 2B of the second embodiment.

  As shown in FIG. 12, the bending mechanism 200 </ b> B of this modification is provided between the printing unit 40 and the pasting head 60, unlike the bending mechanism 200 (see FIG. 9) of the second embodiment. The bending mechanism 200B bends the label L that has already been separated from the mount 72 and has an adhesive surface exposed.

  13A and 13B show the structure of the bending mechanism 200B. The bending mechanism 200B includes a pressing plate 210B and two non-adhesive rollers 220B for bending that do not adhere to the glue surface of the label L.

  When the label L is transported in the transport direction X, the pressing plate 210B moves up and down at predetermined intervals to push the label L between the two bending non-adhesive rollers 220B.

  When passing through the bending mechanism 200B, a bent portion FL is formed in the label L. The valley portion V, which is the lowest portion in the bent portion FL, is formed as a fold line (see FIG. 1B) and extends in the label width direction orthogonal to the transport direction X.

  According to this configuration, the bending mechanism 200 </ b> B is disposed after the printing unit 40. As a result, since the label is not bent before printing, it is possible to suppress deterioration in printing quality.

(4-3) Modification 2C
14A and 14B show another modification 2C of the second embodiment. In the present modification, a different bending mechanism 200C is used instead of the bending mechanism 200B of Modification 2B. The bending mechanism 200C includes a pressing plate 210C and four bending non-adhesive rollers 220C that do not adhere to the glue surface of the label L. The four bending non-adhesive rollers 220 </ b> C are spaced apart from each other in the label width direction orthogonal to the transport direction X.

  According to this configuration, the bent portion FL formed in the label L is a plurality of intermittent folds (see FIG. 1C). Since the contact pressure between the label L and the object 90 is increased at the place where the fold is formed, the label L can be easily attached to the object 90.

<Third Embodiment>
(1) Overall Configuration FIG. 15 shows a label sticking device 10 according to a third embodiment of the present invention. The label sticking device 10 is common to the first embodiment in that it includes a housing 20, a transport mechanism 30, a printing unit 40, a peeling mechanism 50, a sticking head 60, and a placement unit 80. However, the label sticking device 10 according to the third embodiment has a bending mechanism 300 having a structure different from that of the bending mechanism 100 of the first embodiment.

(2) Bending mechanism 300
As shown in FIG. 15, the bending mechanism 300 is provided at a location on the transport path FP before the printing unit 40.

  16A and 16B show the structure of the bending mechanism 300. FIG. The bending mechanism 300 includes a bending table 310 and a roller 320. The bending table 310 and the roller 320 are arranged so as to sandwich the label L. The bending table 310 has two inclined surfaces that form a predetermined angle. The roller 320 may be configured to press the label L toward the bending base 310 with a spring.

  FIG. 16B is a side view of the roller 320. Curved irregularities are formed on the outer edge of the roller 320.

(3) Features According to this configuration, the bent portion FL formed by the curved irregularities of the roller 320 is a plurality of raised portions (see FIG. 1D) aligned in a line at the center in the width direction of the label L. The bent portion FL having such a raised portion shape is easy to maintain the shape. The valley V, which is the lowest part of the bent portion FL, is located at approximately the same distance or completely at the same distance from the two ends E.

(4) Modification Examples of the third embodiment are shown below.

(4-1) Modification 3A
17A and 17B are a modification 3A of the third embodiment. In this modification, instead of the bending mechanism 300 of the third embodiment, a different bending mechanism 300A is used. The bending mechanism 300A includes a bending table 310A and a roller 320A. The arrangement of these members is the same as that of the bending mechanism 300 of the third embodiment.

  FIG. 17B is a side view of the roller 320A. Square irregularities are formed on the outer edge of the roller 320A.

  According to this configuration, the bent portion FL formed by the rectangular unevenness of the roller 320A is a plurality of raised portions (see FIG. 1D), and each raised portion has a corner. The corner portion tends to increase the initial contact pressure between the label L and the object 90.

(4-2) Modification 3B
18 and 19 show another modification 3B of the third embodiment.

  As shown in FIG. 18, the bending mechanism 300 </ b> B of the present modification is provided on the sticking head 60, unlike the bending mechanism 300 (see FIG. 15) of the third embodiment. The bending mechanism 300B bends the label L that has already been separated from the mount 72 and the adhesive surface is exposed.

  FIG. 19 shows a pasting head 60 and a bending mechanism 300B according to this modification.

  The sticking head 60 includes a pipe 61, a chamber block 62, a nozzle selection plate 63, and a nozzle block 64. The pipe 61 is connected to an electromagnetic valve that switches between an air source and a vacuum pump. The chamber block 62 has a space for storing air supplied from an air source via the pipe 61. The nozzle block 64 is provided with a number of nozzles 65 for ejecting air. The nozzle selection plate 63 is a plate that masks unused ones of the many nozzles 65.

  When the pipe 61 is connected to the air source by the electromagnetic valve, the sticking head 60 injects air from the nozzle 65 and blows off the label L. On the other hand, when the pipe 61 is connected to the vacuum pump by the electromagnetic valve, the sticking head 60 sucks and holds the label L.

  The bending mechanism 300 </ b> B according to the present modification includes a plurality of protruding members 330 </ b> B provided on the surface of the nozzle block 64. When the sticking head 60 adsorbs the label L, the label L is strongly pressed against the projection material 330B, whereby a bent portion FL including a plurality of raised portions (see FIG. 1D) is formed on the label L.

  The protruding member 330B may be configured to protrude from the nozzle block 64 or be accommodated in the nozzle block 64 by an electric actuator or the like.

<Other modifications>
The label roll 70 may be made of a mountless label instead of the unpeeled tape 71 having the mount 72. In this case, the label sticking device 10 may have a mountless label cutting mechanism instead of the peeling mechanism 50.

  The present invention is widely applicable to labeling devices used in all fields. The present invention can also be applied to any device having a function of attaching a label to an object. For example, the present invention can be used for an automatic weighing pricer.

E End part FL Bent part L Label V Valley part X Conveyance direction FP Conveyance path 10 Label sticking device 20 Housing 30 Conveying mechanism 40 Printing unit 50 Peeling mechanism 60 Sticking head 70 Label roll 71 Unpeeling tape 72 Mount 80 Mounting part 90 Object 100, 100A, 100B, 100C, 100D, 200, 200A, 200B, 200C, 300, 300A, 300B Bending mechanism

JP 2004-136931 A

Claims (9)

A bending mechanism that bends a label having two end portions that are spaced apart from each other and forms a downward bending portion between the two end portions;
An air injector for injecting air downward toward the label in order to attach the label to an object;
A labeling device comprising: The lowest part in the bent portion is located at approximately the same distance from the two end portions,
The label sticking device according to claim 1. The bent portion is a curved portion.
The label sticking device according to claim 1 or 2. The bent portion is a single or a plurality of folds.
The label sticking device according to claim 1 or 2. The bent portion is a single or a plurality of raised portions,
The label sticking device according to claim 1 or 2. A printing mechanism for printing on the label;
A transport mechanism for transporting the label in the order of the bending mechanism, the printing mechanism, and the air ejector;
Further comprising
The label sticking apparatus in any one of Claims 1-5. A printing mechanism for printing on the label;
A transport mechanism that transports the label in the order of the printing mechanism, the bending mechanism, and the air ejector;
Further comprising
The label sticking apparatus in any one of Claims 1-5. The lowest part in the bent part extends in parallel with the transport direction of the label,
The label sticking device according to claim 6 or 7. The lowest part in the bent portion extends in a direction orthogonal to the transport direction of the label,
The label sticking device according to claim 6 or 7.

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