JP2010195403A - Label sticking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label sticking apparatus that prevents a label from being stopped in the course of being moved along a sucking face. <P>SOLUTION: The label sticking apparatus 1 includes a sucking section 6 that sucks and holds a conveyed label L in order to stick the label L to an article, and a plurality of pressing members 2 that push out the label L held by the sucking section 6 and press it against the article. The sucking section 6 has the sucking face 61 and a deflecting face 64. The sucking face 61 sucks the label L, and the deflecting face 64 orients the label L toward a position below the sucking face by coming into contact with an end face of the label L before the label L is sucked by the sucking face 61. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a label attaching device for attaching a label to an article.

  2. Description of the Related Art Conventionally, as disclosed in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2003-165515), a label sticking apparatus sucks a label conveyed across a suction surface using negative pressure. ing.

  However, when the suction force of the suction surface exceeds the label conveyance force, the label may be sucked and stopped as soon as it enters the suction surface, and the label may not move to a predetermined position on the suction surface.

  The subject of this invention is providing the label sticking apparatus which prevents that a label stops in the middle of moving along a suction surface.

  The label sticking device according to the first aspect of the present invention is a sticking unit that holds a conveyed label by suction in order to stick a label to an article, and a plurality of pressing members that push the label held by the suction part and press it against the article. The adhering part has an adsorbing surface and a deflecting surface. The suction surface sucks the label. The deflecting surface contacts the end surface of the label before the label is attracted to the attracting surface, and directs the label below the attracting surface.

  In this label sticking device, before the label is attracted to the suction surface, the end surface of the label comes into contact with the deflection surface and moves downward from the suction surface to leave the suction surface. And the label is reliably sucked when the label reaches a predetermined position on the suction surface. As a result, the phenomenon that the label cannot move to a predetermined position on the suction surface is prevented.

  The label sticking device according to the second invention is the label sticking device according to the first invention, and the deflection surface is opposed to the end face of the conveyed label and is inclined with respect to the suction surface. In this label sticking device, since the deflection surface is an inclined surface, the label is surely directed below the suction surface. Further, molding is easy, and an increase in manufacturing cost is suppressed.

  The label sticking device according to the third invention is the label sticking device according to the first invention or the second invention, and further includes an air blowing section for blowing air onto the label. The air blowing direction of the air blowing unit is a direction in which the label that has moved below the suction surface is brought closer to the suction surface.

  In this label sticking device, the end face of the label comes into contact with the deflecting face and goes below the suction face, so that the label is once separated from the suction face and then sucked to the suction face. And since the air which blown off from the air blowing part assists the operation | movement, it is prevented that a label falls without being adsorbed | sucked to an adsorption | suction surface.

  A label sticking device according to a fourth aspect of the present invention is the label sticking device according to the third aspect of the present invention, wherein the air blowing part is disposed on the side facing the deflection surface across the label. In this label sticking apparatus, the air blowing direction is along the moving direction of the label, so that the label is reliably sucked to the suction surface without being warped in the reverse direction of the moving direction.

  A label sticking device according to a fifth aspect of the present invention is the label sticking device according to any one of the first to third aspects of the present invention, wherein the suction part penetrates the plurality of pressing members in a direction perpendicular to the suction surface. And it is movably supported. One of the plurality of pressing members has a suction mechanism for sucking the label from the end surface on the side in contact with the label.

  In this label sticking apparatus, when the label is sucked by one pressing member, it is suppressed that the suction force acting on the label exceeds the label transport force. As a result, the phenomenon that the label cannot move to a predetermined position on the suction surface is prevented.

  The label sticking device according to a sixth aspect of the present invention is the label sticking device according to the fifth aspect of the present invention, wherein the pressing member having a suction mechanism is located at substantially the center of the end surface on the deflection surface side of the suction surface. In this label sticking device, even if the length dimension in the label transport direction and the width dimension intersecting the transport direction are changed, the center of the end of the suction surface on the deflection surface side always faces the label. The label is absorbed.

  In the label sticking device according to the present invention, the end surface of the label comes into contact with the deflecting surface and moves away from the suction surface before the label is sucked to the suction surface. Exceeding the transporting force is suppressed, and the label is reliably sucked when the label reaches a predetermined position on the suction surface. As a result, the phenomenon that the label cannot move to a predetermined position on the suction surface is prevented.

The side view of the label sticking apparatus which concerns on one Embodiment of this invention. The side view of a label sticking apparatus when the end surface of a label hits a deflection surface and changed the direction. The side view of a label sticking apparatus when a label approachs the downward direction of an adsorption surface. The side view of a label sticking apparatus when a label is hold | maintained on the adsorption | suction surface. The side view of a label sticking apparatus when a pushing member descend | falls. The side view of a label sticking apparatus when a label is pressed on articles | goods. The top view of the adsorption | suction part and cushion rubber seen from the adsorption surface side.

  Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

<Schematic configuration of label sticking device 1>
FIG. 1 is a side view of a label sticking device according to an embodiment of the present invention. In FIG. 1, the label sticking device 1 includes a pressing member 2, a holding unit 5, a suction unit 6, a label issuing unit 7, and an air blowing unit 8. The holding part 5 moves up and down by an air cylinder (not shown). The suction unit 6 holds the label L conveyed below the holding unit 5 on the suction surface 61. The pressing member 2 is movably supported in a guide hole 52 penetrating the holding portion 5 and is urged upward by a coil spring S. The air blowing unit 8 blows air toward the label L that has traveled below the adsorption unit 6. Details of each part will be described below.

(Pushing member 2)
The pressing member 2 is movably supported by a through hole 62 that penetrates the suction portion 6 in the vertical direction. The pushing member 2 protrudes below the suction surface 61, pushes down the label L sucked on the suction surface 61, and sticks the label L on the upper surface of the product G arranged to face the suction surface 61. The label sticking device 1 includes a plurality of pressing members 2, and the suction unit 6 has a plurality of through holes 62 corresponding to the number of the pressing members 2.

  The push member 2 is formed of a round bar made of stainless steel, and a cushion rubber 3 is attached to the lower end portion, and a stopper 22 is attached to the upper end portion. Since the stopper 22 and the holding plate 51 of the holding portion 5 are compressed with the coil spring S interposed therebetween, the stopper 22 receives an upward biasing force of the spring S.

  The cushion rubber 3 has a cylindrical fixed portion 31 and a truncated cone-shaped pressing portion 32. The fixing portion 31 is fitted to the lower end portion of the pressing member 2 to fix the cushion rubber 3. The lower surface of the pressing part 32 presses the label L from the suction part 6 and presses it against the product G.

  In addition, among the cushion rubbers 3 of the plurality of pressing members 2, the cushion rubber 3 (see FIG. 7) positioned at the center of the end portion on the entry side of the label L of the suction portion 6 has a pressing function. A suction port 3a is formed on the lower surface of the portion 32, and the suction port 3a communicates with a negative pressure source (not shown).

(Holding part 5)
The holding part 5 is lightly formed of an aluminum block material in order to suppress the weight load. The holding part 5 has a holding plate 51 that holds the spring S and a guide hole 52 into which the pushing member 2 is inserted. The stopper 22 of the pressing member 2 and the holding plate 51 of the holding portion 5 are compressed with the coil spring S interposed therebetween. The coil spring S is a stainless steel compression spring.

(Suction part 6)
The suction portion 6 has a suction surface 61, a through hole 62, a communication path 63, and a deflection surface 64. The through hole 62 penetrates the suction portion 6 in the vertical direction and is formed with a larger diameter than the pressing portion 32 of the cushion rubber 3 so that the cushion rubber 3 can pass through an appropriate gap.

  In addition, the suction portion 6 is formed with a communication path 63 that communicates with the upper and lower surfaces separately from the through hole 62. The opening on the lower surface side of the communication path 63 sucks the label L as the suction hole 63a. The opening on the upper surface side is connected to a negative pressure source as a suction hole 63b by a suction hose (not shown). However, the suction force is adjusted to such an extent that the label L is easily pulled away from the suction surface 61 by being pushed down by the pressing member 2.

  The deflection surface 64 is an inclined surface or a curved surface formed at the corner of the suction portion 6 facing the end surface of the label L conveyed horizontally. The end face of the label L abuts on the deflection face 64 and changes the traveling direction below the suction face 61.

(Label issuing department 7)
The label issuing unit 7 includes a label supply reel 71, a mount take-up reel 72, a label peeling roller 73, and a label printer 74. On the label supply reel 71, a strip-shaped label sheet having a label L attached to the mount B is wound. The mount take-up reel 72 takes up the mount B from which the label L has been removed. The label peeling roller turns the label paper traveling horizontally toward the mount take-up reel 72 at an acute angle, and peels the label L from the mount B. The label printer 74 prints information on the product G such as product name and expiration date on the surface of the label L. The label L is adhered by being applied to the product G with an adhesive applied to the back surface.

(Air blowing part 8)
The air blowing unit 8 is arranged so as to face the deflection surface 64 with the label L interposed therebetween, and has a nozzle 8a. The air blown out from the nozzle 8 a brings the label L moved below the suction surface 61 closer to the suction surface 61.

<Operation of labeling device 1>
Here, the operation of the label sticking apparatus 1 will be described. 2 shows the state of the label sticking device when the end face of the label hits the deflection surface and changes the direction, FIG. 3 shows the state of the label sticking device when the label enters below the suction surface, and FIG. 4 shows the label. Shows the state of the labeling device when is held on the suction surface. 1 to 4, the label sticking device 1 stands by in a state as shown in FIG. 1 when a printed label is supplied from the side of a label printer 74 disposed adjacently.

  Since the label L is supplied horizontally, the end surface of the label L hits the deflection surface 64 of the suction portion 6 as shown in FIG. When the label L enters below the suction surface 61, the label L is curved so as to be drawn toward the suction port 3 a of the cushion rubber 3 as shown in FIG. 3, and the end surface faces the suction surface 61. This is because the suction port 3a of the cushion rubber 3 sucks air, so that the vicinity of the suction port 3a has a negative pressure.

  However, since the label L is separated from the suction surface 61 when entering the lower side of the suction surface 61, the force for sucking the label L (hereinafter referred to as the suction force) is weak, and the force for the label L to become straight The label L is bent so that the adsorption force is balanced. Therefore, since the label L is not immediately sucked by the suction surface 61, it proceeds to a predetermined position without stopping.

  Furthermore, since the label sticking device 1 includes the air blowing unit 8, the air blown from the nozzle 8 a of the air blowing unit 8 causes the label L to approach the suction surface 61. Therefore, the label L approaches the suction surface 61 even if the suction force from the suction surface 61 is weak.

  When the label L further advances, it is completely sucked into the suction port 3a and the suction hole 63a of the cushion rubber 3, and is held horizontally on the suction surface 61 as shown in FIG. Even if the position when the label L is attracted to the suction surface 61 is not the predetermined position, the label L moves to the predetermined position by the transport force in the traveling direction of the label L. In the label sticking device 1, since only one of the plurality of pressing members 2 has a suction function, the suction force is suppressed, and a problem that the label L cannot move to a predetermined position is prevented.

  FIG. 5 shows the state of the label sticking device when the pressing member is lowered, and FIG. 6 shows the state of the label sticking device when the label is pressed against the article. As shown in FIG. 5, when the holding unit 5 moves downward by a distance X, the push member 2 descends in synchronization with the holding unit 5. The cushion rubber 3 attached to the lower end portion of the pressing member 2 protrudes downward from the suction surface 61 and pulls the label L away from the suction surface 61 and pushes it down. The label L moves downward while being kept in a horizontal state. Since the pressing portion 32 is pressed at a somewhat high speed, the label L does not leave the lower surface of the pressing portion 32 during the downward movement.

  When the holding portion 5 stops in the state shown in FIG. 5, the pushing member 2 is only supported by the holding portion 5 by the coil spring S and has a member that prevents downward movement. Therefore, as shown in FIG. 6, it is lowered by a distance Y against the urging force of the coil spring S by its own inertial force. The label L is lowered until it comes into contact with the product G. Thereby, the label L is stuck on the upper surface of the product G.

<Characteristics of the labeling device 1>
(1)
In the label sticking device 1, before the label L is attracted to the suction surface 61, the end surface of the label L comes into contact with the deflecting surface 64 and moves downward from the suction surface 61 to leave the suction surface 61. Since the adsorption force acting on the label L is suppressed from exceeding the conveyance force of the label L, the label L is reliably adsorbed when it reaches a predetermined position on the adsorption surface 61.

(2)
In the label sticking device 1, since the deflection surface 64 is an inclined surface that is inclined with respect to the suction surface 61, the label surely goes below the suction surface. In addition, molding is easy and an increase in manufacturing cost is suppressed.

(3)
In the label sticking device 1, the end face of the label L comes into contact with the deflecting surface 64 and goes below the suction surface 61. Therefore, the label L is once separated from the suction surface 61 and then sucked to the suction surface 61. And since the air which blown off from the air spraying part 8 assists the operation | movement, it is prevented that the label L falls without being adsorb | sucked by the adsorption | suction surface 61. FIG.

(4)
In the label sticking device 1, the air blowing portion 8 is disposed on the side facing the deflection surface across the label L, and since the air blowing direction is along the moving direction of the label L, the label L is opposite to the moving direction. Without being warped in the direction, it is reliably adsorbed on the adsorption surface.

(5)
In the label sticking device 1, the suction portion 6 supports the plurality of pressing members 2 so as to be movable in a direction perpendicular to the suction surface 61. Only one of the plurality of pushing members 2 has a suction port 3a for adsorbing the label L from the end surface on the side in contact with the label L. As a result, it is suppressed that the suction force acting on the label L exceeds the transport force of the label L, and the phenomenon that the label L cannot move to a predetermined position on the suction surface is suppressed.

(6)
In the label sticking device 1, the pressing member 2 having the suction port 3 a is located substantially at the center of the end of the suction surface 61 on the deflection surface 64 side. Even if the length dimension of the label L in the transport direction and the width dimension intersecting the transport direction are changed, the substantially center of the end of the suction surface 61 on the deflection surface 64 side always faces the label L. L is adsorbed.

  As described above, the present invention is useful for an apparatus that conveys and holds a thin plate member along an adsorption surface.

DESCRIPTION OF SYMBOLS 1 Label sticking apparatus 2 Push member 3a Inlet 3a
6 adsorption part 61 adsorption surface 64 deflection surface 8 air blowing part

JP 2003-165515 A

Claims (6)

In order to attach a label to an article, a label affixing unit comprising an adsorption part that holds the conveyed label by adsorption, and a plurality of pressing members that push out the label held by the adsorption part and press the label against the article A device,
The adsorption part is
An adsorption surface for adsorbing the label;
A deflecting surface that contacts the end surface of the label before the label is attracted to the attracting surface, and directs the label below the attracting surface;
have,
Labeling device. The deflection surface is opposed to the end surface of the label being conveyed and is inclined with respect to the suction surface.
The label sticking device according to claim 1. An air blowing part for blowing air to the label;
The air blowing direction of the air blowing unit is a direction in which the label moved below the suction surface is brought closer to the suction surface.
The label sticking device according to claim 1 or 2. The air blowing portion is disposed on the side facing the deflection surface across the label,
The label sticking device according to claim 3. The suction portion supports a plurality of the pressing members so as to be movable in a direction perpendicular to the suction surface,
One of the plurality of pressing members has a suction mechanism for sucking the label from an end surface on the side in contact with the label.
The label sticking apparatus of any one of Claims 1-3. The pushing member having the suction mechanism is located substantially at the center of the end of the suction surface on the deflection surface side,
The label sticking device according to claim 5.

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