WO2020116575A1

WO2020116575A1 - Label affixing head, and label affixing device

Info

Publication number: WO2020116575A1
Application number: PCT/JP2019/047674
Authority: WO
Inventors: マルカスフォスター; ロバートヴェッター; ピーターホラク; サンドログラフ
Original assignee: 株式会社フジシールインターナショナル; パゴ・アクチェンゲゼルシャフト
Priority date: 2018-12-07
Filing date: 2019-12-05
Publication date: 2020-06-11
Also published as: JP7368377B2; JPWO2020116575A1

Abstract

This label affixing head is provided with a base portion in which a first suction pathway and a first blow-off pathway (574) are provided, and a rotating body in which a plurality of suction-attachment holding portions (R) are provided, wherein: each suction-attachment holding portion (R) is provided with a suction-attachment holding surface (520b) parallel to an axis of rotation; the base portion has a first opposing surface opposing the rotating body; the rotating body has a second opposing surface opposing the base portion; a second suction pathway (541) connected to a suction port, and a second blow-off pathway (551) connected to a blow-off port are provided in each suction-attachment holding portion (R); and the configuration is such that, by rotating the rotating body while the second opposing surface maintains a state of opposing the first opposing surface, in each of the plurality of suction-attachment holding portions (R) the second suction pathway (541) is connected to the first suction pathway, and the second blow-off pathway (551) is connected to the first blow-off pathway (574).

Description

Label sticking head, label sticking device

The present invention relates to a label sticking head and a label sticking device.

A label sticking device is known that sequentially peels the single-wafer labels temporarily attached to a belt-shaped carrier sheet and sticks the peeled labels to an adherend. Such a labeling device is disclosed in U.S. Patent Application Publication No. 2003/01773034 (Patent Document 1).

In the label sticking device disclosed in Patent Document 1, a bellows wheel configured to be rotatable is provided as a label sticking head. By rotating the bellows wheel, the tip portions of the plurality of bellows bodies arranged side by side in the rotation direction sequentially pass through the position where the label is fed. The bellows body is configured to be capable of pressurizing and depressurizing, and at the position where the label is fed out, the label is sucked and held by depressurizing the bellows body. Therefore, at the position where the bellows body picks up the label, the bellows body contracts.

　The bellows body is pressurized at the position where the bellows wheel rotates 180 degrees from the position where the label is picked up. As a result, the bellows body expands, and air is blown out from the opening provided at the tip of the bellows body. As a result, the label adsorbed and held at the tip is attached to the fruits sequentially conveyed by the conveyor.

　The bellows body is equipped with a control element that controls the flow of air so that the label does not drop off from the tip of the bellows body while the bellows body is expanding. The control element controls the flow of air to delay the air within the bellows from reaching the opening.

U.S. Patent Application Publication No. 2003/0173034

However, the label sticking head disclosed in Patent Document 1 has a configuration in which a plurality of bellows bodies are expanded and contracted. For this reason, when there are individual differences among the bellows bodies and the postures and the like during extension vary, it becomes difficult to attach the label with high accuracy. In addition, when the label is repeatedly applied, it may be difficult to apply the label with high precision due to deterioration of the bellows body or the like. Furthermore, it takes a considerable amount of time to stretch the bellows body and blow out the air from the tip of the bellows body, which makes it difficult to attach the label at high speed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a label sticking head and a sticking device which can stick a label accurately at high speed.

The label sticking head based on the present invention is a head that sucks and holds a label that is sequentially fed out at a receiving position, conveys the sucked and held label to the sticking position, and sticks it to an adherend. The label sticking head is rotatable around a rotation axis with a base portion provided with a first suction path and a first blowing path, and a plurality of suction holding sections are provided along the rotation direction so as to surround the rotation axis. And a provided rotating body. Each of the plurality of suction holding portions is provided with a suction holding surface parallel to the rotation axis so that the outer shape of the rotating body when viewed along the rotation axis has a polygonal shape. The base portion has a first facing surface facing the rotating body. The rotating body has a second facing surface facing the base. The first suction path and the first outlet path open on the first facing surface. In each of the plurality of suction holding portions, one end side is opened at the second facing surface and the other end side is connected to a suction port provided on the suction holding surface, and a second suction path is provided, and one end side is the second suction path. A second outlet path is provided which is open on the opposing surface and the other end of which is connected to the outlet provided on the suction holding surface. By rotating the rotating body while maintaining the state in which the second facing surface faces the first facing surface, each of the plurality of suction holding portions is located in the first region of the rotating body in the rotation direction. In the arranged state, the second suction path is connected to the first suction path, and in the state arranged in the second region of the rotating body in the rotation direction, the second blowing path is the first It is configured to be connected to the blowout path. By providing the first region so as to include the receiving position and the sticking position, the suction holding surface allows the suction holding surface to move while each of the plurality of suction holding units moves from the receiving position to the sticking position. It is configured to be capable of sucking and holding a label. By providing the second region corresponding to the sticking position, when each of the plurality of suction holding portions is arranged at the sticking position, gas is blown out from the blowout port, so that the label is formed. The adsorption and holding of the label is released, and the label can be attached to the adherend.

In the label sticking head according to the present invention, the sucking and holding portion sucking and holding the label at the receiving position reaches the sticking position by the time the rotating body rotates 180 degrees from the receiving position. Is preferred.

In the label sticking head according to the present invention, the sucking and holding portion sucking and holding the label at the receiving position reaches the sticking position at a position where the rotating body is rotated 90 degrees from the receiving position. Good.

In the label sticking head according to the present invention, the rotating body may have an octagonal outer shape when viewed from the rotation axis direction.

In the label sticking head based on the present invention, the base may be a shaft extending in the first direction, and the rotating body may be provided with a through hole through which the shaft passes. Good. In this case, it is preferable that the rotating shaft of the rotating body and the shaft of the shaft are coaxial. Further, it is preferable that the first facing surface is located on an outer peripheral surface of the shaft, and the second facing surface is an inner peripheral surface of the rotating body that defines the through hole.

In the label sticking head, an end of the first suction path opposite to an end open to the first facing surface may open at one end of the shaft in the first direction, An end of the first blowout path that is opposite to the end that opens on the first facing surface may open on the other end side of the shaft in the first direction.

A label sticking apparatus based on the present invention includes the label sticking head, a conveyor that conveys a strip to which the label is releasably attached, a supply unit that supplies the strip to the conveyor, and the conveyer. A stripping section for stripping the label from the strip-shaped body conveyed by the above-mentioned method, feeding the stripped-off label to the label sticking head, a collecting section for collecting the strip-shaped body having the stripped label, and the first suction A suction source connected to the path and a pressure source connected to the first outlet path are provided.

According to the present invention, it is possible to provide a label sticking head and a label sticking device capable of sticking labels accurately at high speed.

It is a perspective view which shows the label sticking apparatus which concerns on embodiment. It is sectional drawing which shows the label sticking apparatus which concerns on embodiment. It is a perspective view which shows a mode that a label sticking head concerning an embodiment sticks a label. It is a perspective view which shows the label sticking head which concerns on embodiment. It is a schematic diagram for demonstrating the adsorption|suction state and sticking state which the label sticking head which concerns on embodiment has. FIG. 5 is a sectional view of the label sticking head taken along line VI-VI shown in FIG. 4. FIG. 7 is a sectional view of the label sticking head taken along the line VII-VII shown in FIG. 4. FIG. 8 is a cross-sectional view of the label sticking head taken along the line VIII-VIII shown in FIG. 4. FIG. 5 is a cross-sectional view of the label sticking head taken along line IX-IX shown in FIG. 4. FIG. 5 is a sectional view of the label sticking head taken along line XX shown in FIG. 4. FIG. 6 is a cross-sectional view of the label sticking head taken along line XI-XI shown in FIG. 4.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the embodiments described below, the same or common parts are designated by the same reference numerals in the drawings, and the description thereof will not be repeated.

(Labeling device)
FIG. 1 is a perspective view showing a label sticking apparatus according to an embodiment. FIG. 2 is a cross-sectional view showing the label sticking apparatus according to the embodiment. In addition, in FIG. 1, a supply roller 10 described later is omitted in the drawing. A label sticking apparatus 1 according to an embodiment will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the label sticking device 1 according to the embodiment is a device for sequentially sticking a label to a container 70 as an adherend that is sequentially transported along a transport line 60. The label sticking device 1 is arranged on one side of the transport line 60.

As shown in FIGS. 1 and 2, the label sticking apparatus 1 includes a supply roller 10 (see FIG. 2) as a supply unit, a transport unit 20, a peel plate 30 as a peeling unit, and a winding unit as a collecting unit. A roller 40 and a label sticking head 50 are provided.

The supply roller 10 is arranged on the lower side of the label sticking device 1. On the supply roller 10, a wound body (carrier sheet wound body) around which the carrier sheet 2 as a strip is wound is attached in a replaceable manner. A plurality of labels 3 are releasably attached to the carrier sheet 2. The plurality of labels 3 are, for example, those in which an adhesive layer is laminated on a synthetic resin film.

The supply roller 10 supplies the carrier sheet 2 with the label 3 attached to the transport unit 20. The supply roller 10 supplies the carrier sheet 2 along the transport path formed by the transport unit 20.

The transport unit 20 is provided so as to be able to transport the carrier sheet 2 supplied from the supply roller 10. The transport unit 20 includes a plurality of transport rollers 21, and a transport path along which the carrier sheet 2 is transported is formed by the plurality of transport rollers 21. The transport path is formed so that the carrier sheet 2 supplied from the supply roller 10 is reversed by the peel plate 30 and reaches the winding roller 40.

The peel plate 30 is provided so that the label 3 can be peeled off from the carrier sheet 2 conveyed by the conveying section 20, and the peeled label can be fed out to the label sticking head 50. The peel plate 30 has a plate shape. The carrier sheet 2 is wound around the peel plate 30 so that the carrier sheet 2 is inverted at the tip side of the peel plate 30 (the label sticking head 50 side). When the carrier sheet 2 is turned over at the tip of the peel plate 30, the label 3 is peeled off so that the label 3 is fed to the label sticking head 50 from the tip side.

The take-up roller 40 is arranged on the upper side of the label sticking device 1. The winding roller 40 is arranged above the supply roller 10. In this way, by disposing the winding roller 40 and the supply roller 10 vertically, the installation area of the label sticking device 1 can be reduced as compared with the case where the winding roller 40 and the supply roller 10 are arranged side by side. Can be made smaller.

The take-up roller 40 collects the carrier sheet 2 by winding the carrier sheet 2 with the label 3 peeled off.

The label sticking head 50 is arranged on the tip side of the peel plate 30. The label sticking head 50 holds the labels 3 successively fed from the peel plate 30 and sequentially sticks them to the transported container 70.

(Labeling operation of the labeling head)
FIG. 3 is a perspective view showing how the label sticking head according to the embodiment sticks labels. How the label sticking head 50 sticks the label 3 will be described with reference to FIG. 3.

As shown in FIG. 3, the label 3 has a first surface 3a and a second surface 3b which are in a front-back relationship with each other, and the second surface 3b is composed of an adhesive layer. The label 3 is fed so that the second surface 3b faces the side opposite to the rotating body 520 described later.

The label sticking head 50 includes a rotating body 520 rotatably provided around the rotation axis C. The rotating body 520 sucks and holds the fed label 3 at the receiving position P1. When the label 3 is suction-held, the first surface 3a, which is a non-adhesive surface, contacts the rotating body 520, and the second surface 3b having adhesiveness faces the outside.

The label 3 sucked and held by the rotating body 520 passes through the intermediate position P2 as the rotating body 520 rotates and reaches the sticking position P3. At the sticking position P3, gas is blown out from the rotating body 520. As a result, the suction holding of the label 3 is released, and the second surface 3b of the label 3 having adhesiveness is pressed against the container 70. As a result, the label 3 is attached to the container 70.

The container 70 is, for example, a plastic bottle, and has a body portion 71, a shoulder portion 72 continuously provided to the body portion 71, a mouth portion 73 continuously provided to the shoulder portion 72, and a detachable body portion 73. And a lid portion 74 that fits in. The label 3 is attached to the shoulder 72.

The rotation axis C of the rotating body 520 is substantially parallel to the transport direction of the container 70. Thereby, for example, the label 3 is fed from the rotating body 520 from the upper side to the lower side with respect to the container 70. As a result, the label 3 can be attached to the container 70 without being restricted by the transport direction of the container 70. As a result, the degree of freedom in installing the label sticking device 1 can be increased.

Generally, when the label 3 is fed in the direction parallel to the transport direction of the container 70 and attached to the container 70, the peel plate 30 is arranged so that the label 3 is fed in the direction parallel to the transport direction. In that case, the winding direction of the carrier sheet 2 attached to the supply roller 10 must be determined according to the transport direction of the container 70. That is, when the label sticking apparatus 1 is installed on the right side toward the downstream side in the transport direction of the container 70, the winding direction of the carrier sheet winding body is right-winding, and the label sticking apparatus 1 is the transport direction of the container 70. When installed on the left side toward the downstream side, the winding direction of the carrier sheet winding body must be left-handed.

In the present embodiment, as described above, since the label 3 is attached to the container 70 by making the rotation axis C of the rotating body 520 substantially parallel to the transport direction of the container 70, the installation location of the label sticking device 1 can be improved. Without limiting, the winding direction of the carrier sheet winding body can be unified into one type. This facilitates management of the wound carrier sheet.

(Schematic structure of label sticking head)
FIG. 4 is a perspective view showing the label sticking head according to the embodiment. The configuration of the label sticking head will be described with reference to FIG.

As shown in FIG. 4, the label sticking head 50 includes a shaft 510 as a base, a rotating body 520, and a rotating body drive unit 530.

The shaft 510 extends along the first direction. The first direction is, for example, parallel to the transport direction of the container 70. The shaft 510 is immovably fixed to a pair of support members 80 (see FIG. 1) provided at both ends in the first direction.

The shaft 510 includes a small diameter portion 511 and a large diameter portion 512 in the first direction. The small diameter portion 511 extends from the one end 510a side of the shaft 510 toward the other end 510b side, and has a tubular shape. The large diameter portion 512 is provided at a position near the other end 510b of the shaft 510 and has a tubular shape.

The rotating body drive unit 530 is provided so as to rotatably surround the shaft 510. The rotating body drive unit 530 is a drive source for rotating the rotating body 520. For example, a motor or the like can be used as the rotating body drive unit 530. The rotating body driving unit 530 is electrically connected to a control unit 94 (see FIG. 5) described later, and its operation is controlled by the control unit 94.

The rotating body 520 has a polygonal outer shape when viewed from the rotation axis C direction. That is, it is a columnar body having a polygonal bottom surface, and the rotation axis C direction is perpendicular to the bottom surface. Specifically, the rotating body 520 may have an outer shape with an octagonal outline or a regular octagonal outline when viewed from the rotation axis C direction. The rotating body 520 is rotatably provided around the rotation axis C.

The circular body 520 has a circular through hole 523 through which the shaft 510 penetrates. The large diameter portion 512 is inserted into the through hole 523. Accordingly, the rotating body 520 has the second facing surface 520c facing the shaft 510, and the shaft 510 has the first facing surface 510c facing the second facing surface 520c. The second facing surface 520c is an inner peripheral surface of the rotating body 520 that defines the through hole 523. The first facing surface 510c is located on the outer peripheral surface of the large diameter portion 512. The rotation axis C of the rotating body 520 and the axis of the shaft 510 are coaxial.

The rotary body 520 is provided with a plurality of suction holding units R along the rotation direction of the rotary body 520 so as to surround the rotation axis C. Each of the plurality of suction holding units R is provided with a suction holding surface 520b parallel to the rotation axis C so that the outer shape, which is the contour of the rotating body 520 when viewed from the rotation axis C direction, has a polygonal shape. ing.

Each of the plurality of suction holding surfaces 520b has a quadrangular shape and is arranged side by side in the rotation direction of the rotating body 520. In the embodiment, the rotating body 520 includes eight suction holding portions R and has eight suction holding surfaces 520b. The areas of the eight suction holding surfaces 520b are substantially equal.

The rotating body 520 includes a main body 521 and a plurality of block bodies 522. The main body 521 has a polygonal outer shape when viewed from the rotation axis C direction. Each of the plurality of block bodies 522 is fixed to each of the peripheral surfaces of the main body 521. An attachment hole is provided in the center of the block body 522, and the block body 522 is fixed to the main body 521 by inserting a fastening member such as a bolt into the attachment hole.

The block body 522 has a flat portion that faces the outer side in the radial direction of the rotating body 520. The suction holding surface 520b is configured by the flat surface portion. Further, the suction holding unit R is a partitioned region in which the main body 521 and the plurality of block bodies 522 are partitioned in the rotation direction of the rotating body 520 so that the suction holding surface 520b is included.

Each of the plurality of block bodies 522 is provided with a plurality of

outer paths

543 and 553 through which gas can pass. The outer path 543 communicates with a suction port 540 described later, and the outer path 553 communicates with a blowout port 550 described later.

Each of the plurality of suction holding surfaces 520b is provided with a plurality of suction ports 540 for sucking gas and a plurality of air outlets 550 for blowing gas. By sucking the gas from the suction port 540, the label 3 can be suction-held on the suction-holding surface 520b. The label 3 can be attached to the container 70 by blowing out the gas from the outlet 550 to blow the sucked and held label 3 toward the container 70.

As the rotating body 520 rotates around the rotation axis C, a suction state in which gas is sucked from the suction port 540 and the label 3 is sucked, and a sticking state in which gas is blown out from the air outlet 550 and the label 3 is stuck to the container 70. And are formed.

For example, when the rotation axis C is set substantially parallel to the horizontal direction and the label 3 is attached from the upper side of the transported container 70, the rotating body 520 has the label 3 from the upper side of the container 70 toward the container 70. Rotate around the rotation axis so that it descends. In the embodiment, the rotation axis C is substantially parallel to the horizontal direction, the feeding direction of the label 3 is substantially perpendicular to the rotation axis C when viewed from above, and the container 70 is parallel to the rotation axis C direction. Transported in various directions.

When the label 3 is attached from above the container 70, the container 70 may be conveyed in a direction intersecting the rotation axis C when viewed from above. Further, if the label 3 can be received at the upper part of the rotating body 520, the feeding direction of the label 3 may intersect the rotation axis C when viewed from above, or may be parallel to the rotation axis C direction. Good.

FIG. 5 is a schematic diagram for explaining a suction state and a sticking state of the label sticking head according to the embodiment. With reference to FIG. 5, the suction state and the sticking state of the label sticking head 50 according to the embodiment will be described.

FIG. 5 illustrates a state in which each of the three suction holding units R is located at a receiving position P1, an intermediate position P2, and a sticking position P3 described later. When the outer shape of the rotating body 520 is an octagonal shape, the intermediate position P2 is a position where the rotating body 520 is rotated about the rotation axis C by 45 degrees from the receiving position P1, and the attaching position P3 is the receiving position P1. Therefore, the rotating body 520 is in a position rotated by 90 degrees around the rotation axis C.

As shown in FIG. 5, the label sticking device 1 includes a first suction pump 91 and a second suction pump 92 as suction sources, a blowout pump 93 as a pressurizing source, and a control unit 94.

The first suction pump 91 is connected to an upstream first suction path 571, which will be described later, and generates a negative pressure in the upstream first suction path 571. The second suction pump 92 is connected to a downstream first suction passage 577, which will be described later, and generates a negative pressure in the downstream first suction passage 577. The blowout pump 93 is connected to a first blowout passage 574, which will be described later, and generates a positive pressure in the first blowout passage 574. The control unit 94 controls the operations of the first suction pump 91, the second suction pump 92, and the blowing pump 93.

A second suction path 541 and a second outlet path 551 are provided in each of the plurality of suction holding units R described above.

The second suction passage 541 is provided such that one end side thereof can be connected to the upstream first suction passage 571 or the downstream first suction passage 577. The other end of the second suction path 541 is connected to the suction port 540. The second outlet path 551 is provided such that one end side thereof can be connected to the first outlet path 574. The other end of the second outlet path 551 is connected to the outlet 550.

The upstream first suction passage 571, the downstream first suction passage 577, and the first outlet passage 574 are provided on the shaft 510 as described later. The upstream first suction path 571 and the downstream first suction path 577 correspond to the first suction path.

One end of the upstream first suction passage 571 is provided so as to be connectable to the second suction passage 541, and the other end of the upstream first suction passage 571 is connected to the first suction pump 91. One end side of the first outlet passage 574 is provided so as to be connectable to the second outlet passage 551, and the other end side of the first outlet passage 574 is connected to the outlet pump 93. One end of the downstream first suction passage 577 is provided so as to be connectable to the second suction passage 541, and the other end of the downstream first suction passage 577 is connected to the second suction pump 92.

By the rotation of the rotating body 520, the second suction path 541 provided in each of the plurality of suction holding units R is sequentially connected to the upstream first suction path 571. Specifically, at the receiving position P1, the second suction passage 541 is connected to the upstream first suction passage 571. Although FIG. 5 illustrates the connection state of each path at each of the receiving position P1, the intermediate position P2, and the sticking position P3, the second suction path 541 moves from the receiving position P1 to the intermediate position P2. During that time, the state of being connected to the upstream first suction path 571 is maintained.

By rotating the rotating body 520, the second suction paths 541 provided in the plurality of suction holding units R are sequentially connected to the downstream first suction path 577. In FIG. 5, the connection state at each of the receiving position P1, the intermediate position P2, and the sticking position P3 is shown, but the second suction path 541 is a position between the middle position P2 and the sticking position P3. Are sequentially connected to the downstream first suction path 577. At the pasting position P3, the second suction passage 541 is in a state of being connected to the downstream first suction passage 577. The state where the second suction path 541 is connected to the downstream first suction path 577 after the pasting position P3 is released.

By the rotation of the rotating body 520, the second blowing paths 551 provided in the plurality of suction holding units R are sequentially connected to the first blowing path 574. Specifically, at the sticking position P3, the second outlet path 551 is connected to the first outlet path 574. After passing the pasting position P3, the state in which the second outlet passage 551 is connected to the first outlet passage 574 is released. Then, by further rotating the rotating body 520, the released state is maintained until the receiving position P1 is reached. In this way, the rotating body 520 rotates between the receiving position P1 and the pasting position P3 via the intermediate position P2, thereby completing the pasting from the receipt of the label 3. As described above, since the rotating body 520 has an octagonal shape when viewed from the direction of the rotation axis C, the rotation angle from the receiving position P1 to the sticking position P3 is about 90 degrees. In this way, since the rotation angle of the rotating body 520 from receiving the label 3 to attaching the label 3 can be reduced, the label 3 can be attached more accurately.

(Detailed structure of label sticking head)
The detailed structure of the label sticking head 50 will be described with reference to FIGS. 6 to 10. First, the second suction path 541 and the upstream first suction path 571 will be described with reference to FIGS. 6 to 8.

FIG. 6 is a sectional view of the label sticking head taken along line VI-VI shown in FIG. FIG. 7 is a cross-sectional view of the label sticking head taken along the line VII-VII shown in FIG. FIG. 8 is a cross-sectional view of the label sticking head taken along the line VIII-VIII shown in FIG.

As shown in FIGS. 6 to 8, the upstream first suction passage 571 is provided on the shaft 510. The upstream side first suction path 571 is provided so that one end side thereof opens at the first facing surface 510c. One end (opening end) of the upstream first suction passage 571 is located upstream of the one end (opening end) of the downstream first suction passage 577 in the rotation direction of the rotating body 510.

The other end of the upstream first suction passage 571 opens at one end 510a of the shaft 510 in the axial direction (first direction) of the shaft 510. The other end of the upstream first suction passage 571 is connected to the above-described first suction pump 91 by a pipe or the like.

The upstream first suction path 571 has a first portion 572 and a second portion 573. The first portion 572 extends along the first direction. The second portion 573 is connected to the first portion 572 and opens at the first facing surface 510c. The second portion 573 extends along the radial direction of the shaft 510. The second portion 573 has a fan shape when viewed from the first direction and opens in a substantially arc shape. Specifically, it opens from the receiving position P1 to the intermediate position P2.

The second suction path 541 has an inner path 542 provided on the radially inner side of the rotating body 520 and two outer paths 543 provided on the outer side in the radial direction. The inner path 542 is provided in the main body 521. The two outer paths 543 are provided in the block body 522, and are arranged side by side in the rotation axis direction of the rotating body 520.

The inner path 542 has a first path 5421, a second path 5422, and a third path 5423. The first path 5421 is located on one side in the rotation axis direction, and the third path 5423 is located on the other side in the rotation axis C direction. The second path 5422 is located between the first path 5421 and the third path 5423 in the rotation axis direction, and connects the first path 5421 and the third path 5423.

The first path 5421 and the third path 5423 extend along the radial direction of the rotating body 520. One end side of the first path 5421 is open to the second facing surface 520c, and the other end side is connected to the outer path 543 arranged on one side in the rotation axis direction. One end of the third path 5423 is connected to the second path 5422, and the other end of the third path 5423 is connected to the outer path 543 arranged on the other side in the rotation axis direction.

In the state where the first path 5421 is connected to the second portion 573, the suction port 540 is connected via the first path 5421, the second path 5422, the third path 5423, and the two outer paths 543. It communicates with the upstream first suction path 571.

FIG. 9 is a sectional view of the label sticking head taken along line IX-IX shown in FIG. The downstream first suction path 577 will be described with reference to FIG. 9.

As shown in FIG. 9, the downstream first suction passage 577 is provided in the large diameter portion 512. The downstream first suction path 577 is provided so that one end side is open at the first facing surface 510c. The downstream first suction path 577 opens on the first facing surface 510c on the downstream side in the rotation direction, as compared with the upstream first suction path 571. The other end of the downstream first suction passage 577 is open to one end of the large diameter portion 512 in the axial direction of the shaft 510. The other end of the downstream side first suction passage 577 is connected to the above-mentioned second suction pump 92 by a pipe or the like.

As shown in FIGS. 9 and 7, the downstream first suction path 577 has a first portion 578 and a second portion 579. The first portion 575 extends along a direction parallel to the axial direction (first direction) of the shaft 510. The second portion 576 is connected to the first portion 578 and opens to the first facing surface 510c. The second portion 579 has a fan shape and opens in a substantially arc shape when viewed from the first direction. Specifically, when viewed from the first direction, the second portion 579 opens at a predetermined angle from the pasting position P3 to the upstream side and the downstream side in the rotation direction.

In the state where the first path 5421 is connected to the second portion 579, the suction port 540 is downstream via the first path 5421, the second path 5422, the third path 5423, and the two outer paths 543. It communicates with the side first suction path 577.

FIG. 10 is a sectional view of the label sticking head taken along the line XX shown in FIG. FIG. 11 is a cross-sectional view of the label sticking head taken along line XI-XI shown in FIG. The second outlet passage 551 and the first outlet passage 574 will be described with reference to FIGS. 10 and 11.

As shown in FIGS. 10 and 11, the first outlet path 574 is provided on the other end 510b side of the shaft 510. The first outlet path 574 is provided so that one end side thereof opens at the first facing surface 510c. The other end of the first outlet passage 574 opens to the other end 510b of the shaft 510 in the axial direction (first direction). The other end of the first outlet path 574 is connected to the above-mentioned outlet pump 93 by a pipe or the like.

The first outlet path 574 has a first portion 575 and a second portion 576. The first portion 575 extends along the first direction. The first portion 575 is provided so as to be aligned with the first portion 572 of the upstream first suction path 571 in the first direction. The second portion 576 is connected to the first portion 575 and faces the first facing surface 510c. The second portion 576 extends along the radial direction of the shaft 510. The second portion 576 has a fan shape and opens in a substantially arc shape when viewed from the first direction.

A pair of second outlet paths 551 are provided so as to be aligned in the rotation direction of the rotating body 520. Each of the pair of second outlet passages 551 has an inner passage 552 provided inside the rotating body 520 in the radial direction and an outer passage 553 provided outside in the radial direction. The two inner paths 552 are provided in the rotating body 520 and are arranged side by side in the rotation direction. The two outer paths 553 are provided in the block body 522, and are arranged side by side in the rotation direction.

The inner path 552 located on the upstream side in the rotation direction of the two inner paths 552 is connected to the outer path 553 located on the upstream side in the rotation direction of the two outer paths 553. The inner path 552 located downstream of the two inner paths 552 in the rotation direction is connected to the outer path 553 located downstream of the two outer paths 553 in the rotation direction.

When the two inner passages 552 are connected to the second portion 576, the outlet 550 communicates with the first outlet passage 574 via the two inner passages 552 and the two outer passages 553.

(Rotating operation of the rotating body 520 and attaching a label)
The rotation operation of the rotating body 520 and the label attachment will be described with reference to FIGS. 6 to 11.

As shown in FIGS. 6 to 9, by rotating the rotating body 520 while maintaining the state in which the second facing surface 520c faces the first facing surface 510c, each of the plurality of suction holding units R becomes a rotating body. The second suction passage 541 is connected to the upstream first suction passage 571 and/or the downstream first suction passage 577 in a state where the second suction passage 541 is arranged in the first region R1 (see FIG. 7) in the rotation direction of 520. The first region R1 is provided so as to include the receiving position P1 to the attaching position P3.

When the suction holding unit R is located in the first region R1, the suction holding surface 520b can hold the label 3 by suction.

Specifically, the second suction path 541 and the upstream first suction path 571 are connected at the receiving position P1. As a result, the second suction path 541 and the upstream first suction path 571 communicate with each other, and the gas is sucked in the direction of the arrow shown in FIG. As a result, the inside of the second suction path 541 and the upstream first suction path 571 becomes negative pressure, and the label 3 peeled from the peel plate 30 is suction-held on the suction-holding surface 520b of the rotating body 520.

As described above, since the second portion 573 opens in the arc shape in the upstream first suction path 571, the state in which the second suction path 541 and the upstream first suction path 571 are connected is from the receiving position P1. It is maintained up to the intermediate position P2.

Further, when the rotating body 520 rotates, the suction holding surface 520b holding the label 3 by suction moves from the intermediate position P2 to the sticking position P3. When the suction holding surface 520b moves from the intermediate position P2 to the sticking position P3, as shown in FIG. 7, the connection destination of the second suction path 541 is from the upstream first suction path 571 to the downstream first suction path 571. Switch to 577.

The distance between the end of the second portion 579 on the upstream side in the rotation direction and the opening end of the second portion 573 on the downstream side in the rotation direction is smaller than the inner diameter of the first path 5421. Therefore, even when the connection destination of the second suction path 541 is being switched, the first path 5421 extends over the upstream first suction path 571 and the downstream first suction path 577, and the label The state in which 3 is suction-held on the suction-holding surface 520b is maintained.

When the second suction path 541 is connected to the downstream first suction path 577, gas is sucked in the direction of the arrow shown in FIG. As a result, the inside of the second suction path 541 and the first suction path 577 on the downstream side becomes negative pressure, and the label 3 is suction-held on the suction-holding surface 520b of the rotating body 520. The label 3 is suction-held by the suction-holding surface 520b until the rotary body 520 rotates and the suction-holding unit 520 moves to the attaching position P3.

As shown in FIG. 10, by rotating the rotating body 520 while maintaining the state in which the second facing surface 520c faces the first facing surface 510c, each of the plurality of suction holding units R causes the rotating body 520 to rotate. The second outlet path 551 is connected to the first outlet path 574 in a state of being arranged in the second region R2 in the direction. The second region R2 is provided corresponding to the sticking position P3.

When the suction holding part R is arranged in the second region R2, that is, when the suction holding part R is arranged in the sticking position P3, gas can be blown out from the blowout port 550. As a result, the suction holding of the label 3 is released, and the label 3 can be attached to the container 70.

Specifically, when the suction holding unit R reaches the pasting position P3, as shown in FIG. 10, the pair of second outlet paths 551 are connected to the first outlet path 574. As a result, the pair of second outlet passages 551 and the first outlet passage 574 communicate with each other, and gas is blown out in the direction of the arrow shown in FIG. As a result, gas is blown out from the air outlet 550.

Here, when the gas is blown out from the air outlet 550, the suction from the downstream first suction path 577 is stopped. As a result, the suction state of the label 3 is released, and the label 3 is attached to the shoulder 72 of the container 70.

By rotating the rotating body 520 around the rotation axis C, the above-described operations from the suction of the label 3 to the sticking of the label 3 are sequentially performed on each suction holding surface 520b. As a result, the label 3 can be sequentially attached to the container 70 flowing through the transport line 60.

The timing of feeding the label 3, the timing of receiving the label at the receiving position P1, the timing of attaching the label 3 at the attaching position P3, etc., depend on the position of the container 70 flowing through the transport line 60 recognized by the sensor. Controlled by 94.

As described above, in the label sticking head 50 according to the embodiment, the rotating body 520 rotates while maintaining the state in which the second facing surface 520c faces the first facing surface 510c, and thus the plurality of suction holding units are provided. In a state where the second suction path 541 provided in each of the Rs is arranged in the first region R1, the second suction path 541 has the upstream first suction path 571 and/or the downstream first suction path 577. The second outlet path 551 is connected to the first outlet path 574 while being connected to the second area R2.

The label 3 is suction-held on the suction-holding surface while the second suction route 541 and the upstream first suction route 571 are connected. In the state where the second outlet passage 551 and the first outlet passage 574 are connected, the gas is blown out from the outlet 550, whereby the suction holding of the label 3 is released and the label 3 is attached to the container 70.

Here, the suction holding surface 520b of the rotating body 520 is parallel to the rotation axis C. Therefore, when the label 3 is suction-held on the suction-holding surface 520b, the posture of the label 3 can be stabilized. Further, one end of the second suction passage 541 connected to the suction port 540 and one end of the second outlet passage 551 connected to the outlet 550 are opened to the second facing surface 520c, respectively, and the upstream first suction passage 571 is formed. And one end of the first outlet passage 574 are opened to the first facing surface 510c. Therefore, by rotating the rotating body 520 while maintaining the state in which the second facing surface 520c faces the first facing surface 510c, the second suction path 541 and the upstream first suction path 571 or the downstream first A state in which the suction passage 577 is connected and a state in which the second blowout passage 551 and the first blowout passage 574 are connected can be sequentially formed.

By rotating the rotating body 520 at a high speed, the label 3 suction-held on the suction-holding surface 520b can be moved to the sticking position P3 at a high speed in a stable posture. Further, at the sticking position P3, the gas is blown directly from the blowout port 550 through the second blowout passage 551 and the first blowout passage 574. Therefore, the time for blowing out the gas can be shortened, and the label 3 suction-held on the suction-holding surface 520b that has reached the sticking position P3 can be accurately and quickly stuck to the transported container 70.

In this way, the label sticking head 50 according to the embodiment and the label sticking apparatus 1 including the same can stick labels at high speed and with high accuracy.

Further, the suction holding unit R that suction-holds the label 3 at the receiving position P1 reaches the sticking position P3 by the time the rotary body 520 rotates 180 degrees, thereby reducing the rotation angle of the rotary body 520 up to the sticking position P3. can do. Thereby, the transport time of the label 3 to the sticking position P3 can be shortened, and the accuracy of the rotation control for rotating the rotating body 520 to the sticking position P3 can be improved. As a result, the displacement of the label 3 at the sticking position P3 can be suppressed, and the label 3 can be stuck with higher accuracy.

In particular, the suction holding unit R that holds the label 3 by suction at the receiving position P1 reaches the sticking position P3 at the position where the rotator 520 is rotated by 90 degrees, so that the sticking position is obtained when the rotator 520 is rotated by 180 degrees. Compared with the case of reaching, the rotation angle of the rotator 520 up to the sticking position P3 can be reduced, and the rotation control thereof can be performed with high accuracy.

When the rotator 520 has an octagonal shape when viewed from the direction of the rotation axis C, the rotator 520 is rotated by 45 degrees so that the suction holding surface 520b is adjacent to the suction holding surface on the downstream side in the rotation direction. It can be moved to the position of 520b. As described above, when it is desired to make the suction holding unit R reach the attaching position P3 at the position where the rotating body 520 is rotated by 90 degrees from the receiving position P1, the rotation control can be easily performed.

As described above, by arranging the shaft 510 coaxially with the rotating body 520 so as to penetrate the rotating body 520, the rotation of the rotating body 520 can be stabilized.

Further, the other ends of the upstream first suction path 571 and the downstream first suction path 577 open to one end 510a of the shaft 510, and the other end of the first blowout path 574 opens to the other end 510b of the shaft 510. ing. Therefore, the negative pressure source (the first suction pump 91, the second suction pump 92) is connected to the upstream first suction path 571 and the downstream first suction path 577, and the pressure source (blowout pump 93) is provided. The connection with the first outlet path 574 can be performed without confusion.

In the above-described embodiment, the case where the label 3 is attached to the shoulder 72 of the container 70 has been described as an example, but the present invention is not limited to this, and may be attached to the body 71 of the container 70. It may be attached to the cap portion of the container 70. Moreover, although the case where the adherend to which the label 3 is attached is the container 70 such as a PET bottle has been described as an example, the present invention is not limited to this and can be appropriately changed.

In the above-described embodiment, the rotating body 520 has been described by exemplifying the case of having an octagonal outer shape when viewed from the direction of the rotation axis C, but the present invention is not limited to this and may be a polygon other than an octagon. It may be. In this case, the number of suction holding surfaces 520b and the number of suction holding portions R included in the rotating body are appropriately set according to the number of polygonal sides.

In the above-described embodiment, the case where the single intermediate position P2 is provided between the receiving position P1 and the sticking position P3 has been described as an example, but the present invention is not limited to this, and the intermediate position P2 may not be provided. Good. That is, the position adjacent to the receiving position P1 on the downstream side in the rotation direction of the rotating body may be the pasting position P3. Further, a plurality of intermediate positions P2 may be provided as long as the pasting position P3 is arranged at a position where it is rotated 180 degrees from the receiving position P1.

Above, the embodiment invented this time is an example in all respects and is not restrictive. The scope of the present invention is defined by the claims, and includes meaning equivalent to the claims and all modifications within the scope.

1 labeling device, 2 carrier sheet, 3 label, 3a first surface, 3b second surface, 10 supply roller, 20 transfer unit, 21 transfer roller, 30 peel plate, 40 roller, 50 label application head, 60 transfer line, 70 container, 71 body part, 72 shoulder part, 73 mouth part, 74 lid part, 80 support member, 91 first suction pump, 92 second suction pump, 93 blowing pump, 94 control part, 510 shaft, 510a one end, 510b The other end 510c first facing surface, 511 small diameter portion, 512 large diameter portion, 520 rotating body, 520b suction holding surface, 520c second facing surface, 521 body portion, 522 block body, 523 through hole, 530 rotating body drive portion 540 suction port, 541 second suction route, 542 inner route, 543 outer route, 550 outlet, 551 second outlet route, 552 inner route, 553 outer route, 571 upstream first suction route, 572 first part, 573 2nd part, 574 1st blow-out route, 575 1st part, 576 2nd part, 577 downstream 1st suction route, 578 1st part, 579 2nd part, 5421 1st route, 5422 2nd route, 5423 Third path, C rotation axis, P1 receiving position, P2 intermediate position, P3 pasting position, R suction holding part, R1 first area, R2 second area.

Claims

A label sticking head, which sucks and holds by sequentially receiving labels at a receiving position, conveys the sucked and held label to a sticking position, and sticks it to an adherend,
A base provided with a first suction path and a first outlet path;
A rotating body that is rotatable about a rotation axis and that is provided with a plurality of suction holding portions along the rotation direction so as to surround the rotation axis,
Each of the plurality of suction holding portions is provided with a suction holding surface parallel to the rotation axis, so that the outer shape of the rotating body when viewed along the rotation axis becomes a polygonal shape.
The base portion has a first facing surface facing the rotating body,
The rotating body has a second facing surface facing the base portion,
The first suction path and the first blowout path open in the first facing surface,
In each of the plurality of suction holding portions, one end side is opened at the second facing surface and the other end side is connected to a suction port provided in the suction holding surface, and a second suction path is provided, and one end side is the second suction path. A second outlet path is provided, which is opened in the opposing surface and the other end side is connected to the outlet provided in the suction holding surface,
By rotating the rotating body while maintaining the state where the second facing surface faces the first facing surface, each of the plurality of suction holding units is located in the first region of the rotating body in the rotation direction. In the arranged state, the second suction path is connected to the first suction path, and in the state arranged in the second region of the rotating body in the rotation direction, the second blowing path is the first Is configured to be connected to an outlet path,
By providing the first region so as to include the receiving position and the sticking position, the suction holding surface allows the suction holding surface to move while each of the plurality of suction holding units moves from the receiving position to the sticking position. It is configured to be able to hold labels by suction,
By providing the second region corresponding to the sticking position, when each of the plurality of suction holding units is arranged at the sticking position, gas is blown out from the blowout port, thereby the label The label sticking head, wherein the suction holding of the label is released and the label can be stuck to the adherend.
The label sticking head according to claim 1, wherein the suction holding unit that holds the label by suction at the receiving position reaches the sticking position by the time the rotating body rotates 180 degrees from the receiving position.
The label sticking head according to claim 2, wherein the suction holding unit that holds the label by suction at the receiving position reaches the sticking position at a position where the rotating body is rotated 90 degrees from the receiving position.
The label sticking head according to any one of claims 1 to 3, wherein the rotating body has an octagonal outer shape when viewed from the rotation axis direction.
The base is a shaft extending in a first direction,
The rotating body is provided with a through hole through which the shaft passes,
The rotation axis of the rotating body and the axis of the shaft are coaxial,
The first facing surface is located on an outer peripheral surface of the shaft,
The label sticking head according to any one of claims 1 to 4, wherein the second facing surface is an inner peripheral surface of the rotating body that defines the through hole.
In the first suction path, an end opposite to the end opening in the first facing surface opens at one end of the shaft in the first direction,
The label sticking head according to claim 5, wherein an end of the first outlet path opposite to an end of the shaft facing the first facing surface opens at the other end of the shaft in the first direction.
A label sticking head according to any one of claims 1 to 6,
A transport unit that transports the strip on which the label is releasably attached,
A supply unit for supplying the belt-shaped body to the transfer unit,
A peeling unit that peels the label from the belt-shaped body that is transported by the transport unit, and feeds the peeled label to the label sticking head,
A collecting unit that collects the strip from which the label is peeled off,
A suction source connected to the first suction path;
A label sticking device comprising: a pressure source connected to the first blowing path.