JP2002160711A - Labeling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a labeling device which can stabilize sticking characteristics by enabling a label piece L to be reliably stuck on an article so as to prevent the uplift phenomenon of the label piece L even if the carrier speed of the article is enhanced or even if the dimensions of the article are not constant. SOLUTION: The labeling device, making it important to have at least two labeling members, is characteristically provided with the first labeling member 23, which is rotated so as to stick the label piece L on the article, the second labeling member 25, which is located slightly downstream with respect to the labeling member 23 and made protrusible to the side of the article with respect to the labeling member 23, a first labeling-member driving mechanism 24 for bringing the labeling member 23 into contact with/making it separated from the article, and a second labeling-member driving mechanism 25 for bringing the labeling member 25 into contact with/making it separated from the article.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label sticking apparatus, and more particularly to a label sticking apparatus for sticking labels (label pieces) to goods or other articles conveyed to a sticking position by a conveyor or the like. is there.

[0002]

2. Description of the Related Art A conventional label sticking apparatus will be outlined with reference to FIG. FIG. 5 is a schematic plan view of the label sticking apparatus 1. The label sticking apparatus 1 includes a housing frame 2, a label supply roll 3, a label peeling member 4 such as a turning pin or a peeling plate, and a label suction transfer belt. 5 and a suction box 6 thereof, a backing roll 7 and a label sticking roller 8. Cardboard, merchandise and other articles M are transported on the conveyor 9 and the article sensor 1
0 detects the transport position, is guided by a one-sided conveyor (not shown) along the guide plate 11 on the label attaching apparatus 1 side, and at the attaching position, the label piece L (label) is attached by the label applying roller 8. ) Is pasted. The central control circuit 12 is connected to the label suction transfer belt 5 and its suction box 6, the label supply roll 3, the mount winding roll 7, the label sticking roller 8, and the article sensor 10, and performs transmission and reception of signals and drive control. .

In the label sticking apparatus 1 having such a configuration, the number of the label sticking rollers 8 is one in the related art, and the conveying speed of the article M is in a normal range (30 meters / minute).
If this is the case, there is no problem even with one label sticking roller 8, but if necessary, a plurality of fixed label sticking rollers 13 may be provided along the transport direction at another site apart from the housing frame 2. Thereby, the sticking characteristics have been improved.

However, when the dimensions of the article M conveyed on the conveyor 9 are not constant or when the conveying conditions are not constant, the sticking accuracy of the label sticking roller 8 varies, and sticking failure occurs. There is a problem that sometimes. In particular, in the field of logistics sorting and the like, when increasing the conveying speed by the label applying roller 8 to improve the application processing capacity, the label applying roller 8 is repelled when the article M comes into contact with the label applying roller 8. In addition, there is a problem that the label piece L does not stick firmly and a floating phenomenon occurs, and it is difficult to stick the label piece L securely.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a label sticking apparatus capable of improving the label sticking accuracy.

Another object of the present invention is to provide a label sticking apparatus which can prevent a label piece from floating and stabilize sticking characteristics even when the article conveying speed is increased.

Another object of the present invention is to provide a label sticking apparatus capable of sticking a label piece reliably even if the size of the article is not constant.

Another object of the present invention is to provide a label sticking apparatus that can stably stick a label piece even when the conditions for sticking the label piece to an article are different.

[0009]

That is, the present invention focuses on the use of two or more label sticking rollers, and is a label sticking apparatus for sticking a label to a conveyed article. A first label application member, such as a first label application roller, which rotates so as to apply the label to the article; and a first label located slightly downstream of the first label application member. A second label sticking member, such as a second label sticking roller or a sticking brush, which can protrude from the sticking member toward the article, and a first label sticking member for bringing the first label sticking member into and out of contact with the article. Sticking member drive mechanism,
A second sticking member drive mechanism for bringing the second label sticking member into and out of contact with the article.

The first label sticking member can be driven to rotate at a rotational speed substantially equal to the conveying speed of the article.

The second label sticking member may be a freely rotatable label sticking roller.

The second label attaching member can be used as an attaching brush.

[0013] The first sticking member drive mechanism includes the first sticking member driving mechanism.
A first sticking member arm that rotatably supports the first label sticking member, and a first cylinder such as an air cylinder that swings the first label sticking member in the evacuation direction via the first sticking member arm. A cylinder, a first biasing member such as a tension spring that swings the first label attaching member in the attaching direction via the first attaching member arm, and a rotational drive of the first label attaching member. A drive motor.

The second sticking member driving mechanism includes the second sticking member driving mechanism.
A second sticking member arm supporting the label sticking member of
A second cylinder such as an air cylinder that swings the second label attaching member in the retreating direction via the second attaching member arm; and the second label attaching via the second attaching member arm. A second biasing member such as a tension spring that swings the member in the attaching direction.

The first label attaching member retracts the article to its retracted position immediately before the article is conveyed to the label attaching position, and moves the article to the attached position when the article is conveyed to the label attaching position. This can be positioned and driven to rotate.

The second label sticking member retracts the article to its retracted position immediately before the article is transported to the label sticking position, and moves the article to the sticking position when the article is transported to the label sticking position. This can be located.

The first label attaching member and the second label attaching member
As a material of the label sticking member, a soft material having cushioning property, for example, a sponge material or a brush material is desirable in order to secure the sticking property. Note that the first label attaching member and the second label attaching member generally have a roller-like shape. In particular, the second label attaching member is not only a roller-like member but also a hair-like member. A sticky brush with long legs can be used. Further, the diameter and the length of the first label attaching member and the second label attaching member may be either larger or the same size, and may be arbitrarily designed.

In the label sticking apparatus according to the present invention,
At least a first label attaching member and a second label attaching member are provided as the label attaching members, and the second label attaching member is disposed so as to be slightly downstream of the first label attaching member and protrude toward the article. Therefore, immediately after the attaching operation by the first label attaching member, the attaching operation by the second label attaching member is performed continuously or twice, so that the floating phenomenon of the label piece is prevented, The label piece can be securely attached to the article. That is, even if the conveying speed of the articles or various conditions for application are different, the application accuracy can be improved, and a stable application property can be secured.

In particular, when a sticking brush is used as the second label sticking member, the label can be pressed over a wide area so as to rub the surface of the label piece along the conveying direction of the article to be attached. Therefore, the sticking accuracy can be further improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a label sticking apparatus 20 according to a first embodiment of the present invention will be described with reference to FIGS. However, the same parts as those in FIG. 5 are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a perspective view of a main part of a bottom surface of the label sticking apparatus 20 as viewed from the label piece L side.
Is a perspective view of the main part seen from above the label sticking device 20,
The label sticking device 20 includes a thermal head 21 and a platen roller 22 for printing on the label piece L, and the label peeling member 4 for peeling the label piece L from the backing paper.
The label suction transfer belt 5 and the suction box 6, a first label sticking roller 23 (first label sticking member) and a first roller driving mechanism 24 thereof (first sticking member driving mechanism), It has a second label sticking roller 25 (second label sticking member) and its second roller driving mechanism 26 (second sticking member driving mechanism), and the central control circuit 12.

Printed and peeled label pieces L
Is transported by the label suction transport belt 5 to the first label applying roller 23 while being sucked at the suction port 27 of the suction box 6, and the first roller driving mechanism 24 and the second roller driving mechanism 26 Affixes the label piece L to the article M by swinging the first label applying roller 23 and the second label applying roller 25 in the direction of the article M, respectively. The first label sticking roller 23 is driven to rotate at a rotational speed substantially equal to the transport speed of the article M, and rotates so as to stick the label piece L to the article M. Note that FIG. 3 is a schematic plan view of a main part of the label sticking device 20. As shown, the second label sticking roller 25 can rotate freely and is slightly more than the first label sticking roller 23. It is located on the downstream side and can protrude toward the article M from the first label sticking roller 23.

As shown in FIG. 2, the first roller driving mechanism 24 includes a first roller arm 28 (first sticking member arm), a first cylinder 29, a first urging member 30, , A drive motor 31.

The first roller arm 28 is rotatable around a first arm rotation shaft 32, and the rotational driving force of the driving motor 31 is applied to the first timing belt 3.
The first roller arm 28 rotates the first label sticking roller 23 around the first roller rotation shaft 35 via the third roller 3 and the second timing belt 34. Drivable support.

The first cylinder 29 comprises an air cylinder or the like, and its piston pushes the end of the first roller arm 28 against the urging force of the first urging member 30. Thereby, the first label sticking roller 23 is swung in the retreating direction so as to be away from the transport path on the conveyor 9 of the article M via the first roller arm 28.

The first urging member 30 comprises a tension spring or the like. When the pressing force by the first cylinder 29 is released, the first urging member 30 is moved through the first roller arm 28 via the first roller 29. 23 is swung in its sticking direction toward the article M.

The drive motor 31 rotates the first label sticking roller 23 as described above when the first label sticking roller 23 comes into contact with the article M via the label piece L.

The second roller drive mechanism 26 has a second roller arm 36 (second sticking member arm), a second cylinder 37, and a second urging member 38.

The second roller arm 36 is rotatable about a second arm rotation shaft 39, and is capable of rotating the second label sticking roller 25 about a second roller rotation shaft 40. To support.

The second cylinder 37 is constituted by an air cylinder or the like, and the piston portion pushes the end of the second roller arm 36 so that the second label 37 is formed through the second roller arm 36. Sticking roller 25,
As in the case of the first label sticking roller 23, the roller is swung in the retracting direction.

The second biasing member 38 is formed by a tension spring or the like, and the second label applying roller 25 is connected to the second label applying roller 25 via the second roller arm 36 in the same manner as the first label applying roller 23. And swing in the sticking direction.

In the label sticking apparatus 20 having such a configuration, before the label piece L is stuck to the article M, the first label sticking roller 23 and the second label sticking roller 2 are attached.
5 is in a standby state shown in FIG. In this standby state, when the article sensor 10 detects the article M conveyed on the conveyor 9, the first cylinder 29 is driven by the drive signal from the central control circuit 12 immediately before the article M is conveyed to the label attaching position. By driving the first roller arm 28 against the urging force of the first urging member 30,
Is rotated counterclockwise in FIG. 2 around the first arm rotation shaft 32 to retract the first label sticking roller 23 to a retracted position where it does not collide with the article M. Work around. Second label applying roller 25
Similarly, immediately before the article M is transported to the label sticking position, the second urging member 38 is driven by driving the second cylinder 37 by the drive signal from the central control circuit 12.
The second roller arm 36 is rotated counterclockwise in FIG. 2 around the second arm rotation shaft 39 against the urging force of the second roller arm 36 at the same timing as the first label sticking roller 23. Retract it to the retracted position to avoid its damage, deformation or wear.

When the article M is conveyed to the label attaching position, the first cylinder 29 and the second cylinder 37 are both turned off, and the first roller arm 28 is turned off.
When the pressing force to the second roller arm 36 is released, the first roller arm 28 and the second roller arm 36 are moved by the urging force of the first urging member 30 and the second urging member 38. M (clockwise direction in FIG. 2) to rotate the first label sticking roller 2
Since the third and second label applying rollers 25 are swung so as to come into contact with the article M, the label pieces L that are peeled off at the application position can be attached to the article M. In particular, since the first label sticking roller 23 rotates on its own axis, it is possible to avoid the bending phenomenon of the label piece L, and since the second label sticking roller 25 rotates freely, it follows the label piece L that has already been temporarily stuck. Re-press.

Therefore, first, the label piece L is attached to the article M by the first label attaching roller 23 on the upstream side, and then the second label attaching roller 25 on the downstream side is immediately followed by the label piece L. Since L is pressed in the direction of the article M, even if the sticking operation by the first label sticking roller 23 cannot be performed, the sticking operation by the second label sticking roller 25 is possible, or the first label sticking is possible. Even if the sticking operation by the roller 23 is insufficient, the sticking operation by the second label sticking roller 25 can assist this, and even if the conveying speed of the article M by the conveyor 9 is increased, the label piece L Can be securely attached to the article M.

In the present invention, as the first label sticking member (first label sticking roller 23) and the second label sticking member (second label sticking roller 25), respectively, a roll-shaped sponge material or a roll-shaped brush is used. Although a roller member made of a material or the like can be used, a broom-shaped sticking brush can be particularly used as the second label sticking member. That is, FIG. 4 is a schematic plan view of a main part of a label sticking apparatus 50 according to a second embodiment of the present invention. In this label sticking apparatus 50, a sticking brush 51 is employed as a second label sticking member. are doing. Other structures are substantially the same as the labeling device 20 described above.

The sticking brush 51 is attached to a fixed end 52 for attachment at the tip of the second roller arm 36 (second sticking member arm) in a cantilever manner with a predetermined density of the brush. The free end side protrudes toward the article M by a predetermined length so that the label piece L can be patted with a predetermined flexibility or elastic force in a conveying path or a sticking direction of the article M, It is desirable to have long legs.

In the label sticking apparatus 50 having such a configuration, the label piece L can be securely stuck on the article M by the first label sticking roller 23 and the sticking brush 51 similarly to the label sticking apparatus 20 described above. Can be.
In particular, in the case where the article M is one in which various products are packed and stored in a cardboard box, for example, the outer surface of the article M may be uneven with some curvature. By doing so, it is possible to keep pressing the label piece L over a wider area in the transport direction of the article M, so that the sticking performance can be further improved.

[0037]

As described above, according to the present invention, since the first label attaching member and the second label attaching member are provided, it is possible to stabilize the sticking of the label pieces to the article, and to convey the article conveying speed. It is also possible to respond to high speed.

[Brief description of the drawings]

FIG. 1 is a bottom perspective view of a main part of a label sticking apparatus 20 according to a first embodiment of the present invention, as viewed from a label piece L side.

FIG. 2 is a perspective view of a main part of the label attaching device 20 as viewed from above.

FIG. 3 is a schematic plan view of a main part of the label sticking apparatus 20;

FIG. 4 is a perspective view of a main part of a bottom surface of a label sticking apparatus 50 according to a second embodiment of the present invention, as viewed from a label piece L side.

FIG. 5 is a schematic plan view of a conventional label sticking apparatus 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Label sticking apparatus (conventional, FIG. 5) 2 Housing frame 3 Label supply roll 4 Label peeling member by a turning pin, a peeling plate, etc. 5 Label suction transfer belt 6 Suction box 7 Mount winding roll 8 Label sticking roller 9 Conveyor 10 Article sensor DESCRIPTION OF SYMBOLS 11 Guide plate 12 Central control circuit 13 Stationary label sticking roller 20 Label sticking apparatus (1st Embodiment, FIG. 1) 21 Thermal head 22 Platen roller 23 1st label sticking roller (1st label sticking member) 24 first roller drive mechanism (first sticking member drive mechanism, FIG. 2) 25 second label sticking roller (second label sticking member) 26 second roller drive mechanism (second sticking member drive mechanism, (Fig. 2) 27 Suction port of suction box 6 (Fig. 1) 28 First roller arm (No. 1 sticking member arm) 29 first cylinder (air cylinder) 30 first urging member (tension spring) 31 drive motor 32 first arm rotation axis 33 first timing belt 34 second timing belt 35 First roller rotation shaft 36 Second roller arm (second attaching member arm) 37 Second cylinder (air cylinder) 38 Second urging member (tension spring) 39 Second arm rotation shaft 40 2 roller rotating shaft 50 label sticking device (second embodiment, FIG. 4) 51 sticking brush (second label sticking member) 52 fixed end L for attachment L label piece (label) M cardboard, product or other article

Claims (8)

[Claims] 1. A label sticking apparatus for sticking a label on a conveyed article, comprising: a first rotating device which rotates so as to stick the label on the article.
A second label affixing member positioned slightly downstream of the first label affixing member and capable of protruding toward the article from the first label affixing member; and the first label A first attaching member driving mechanism for bringing the attaching member into and out of contact with the article; and a second attaching member driving mechanism for bringing the second label attaching member in and out of contact with the article. Label attaching device. 2. The label sticking apparatus according to claim 1, wherein the first label sticking member is driven to rotate at a rotational peripheral speed substantially equal to a conveying speed of the article. 3. The label sticking apparatus according to claim 1, wherein the second label sticking member is a freely rotatable label sticking roller. 4. The label sticking apparatus according to claim 1, wherein said second label sticking member is a sticking brush. 5. The first sticking member driving mechanism includes: a first sticking member arm that rotatably supports the first label sticking member; and the first sticking member arm via the first sticking member arm. A first cylinder that swings the label sticking member in the retracting direction, a first urging member that swings the first label sticking member in the sticking direction via the first sticking member arm, The label sticking apparatus according to claim 1, further comprising: a drive motor that rotationally drives the first label sticking member. 6. The second sticking member driving mechanism, wherein: a second sticking member arm supporting the second label sticking member; and the second label sticking member via the second sticking member arm. A second cylinder that swings the second label sticking member in the retreating direction, and a second biasing member that swings the second label sticking member in the sticking direction via the second sticking member arm. The label sticking apparatus according to claim 1, wherein 7. The first label affixing member retracts the article to its retreat position just before the article is transported to the label affixing position, and attaches the article when the article is transported to the label affixing position. 2. The label sticking apparatus according to claim 1, wherein the label sticking apparatus is rotated at a position. 8. The second label attaching member retracts the article to its retracted position immediately before the article is transported to the label attaching position, and attaches the article when the article is transported to the label attaching position. The label sticking apparatus according to claim 1, wherein the label sticking apparatus is located at a position.