JP2004203413A - Underlaying type label affixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underlaying type label affixing device capable of reliably affixing a label even to a commodity having a recessed lower side. <P>SOLUTION: This label affixing device comprises a label issuing machine 30 to issue a label L with an adherend of the label L directed upwardly, a label conveyor 1 which transfers the issued label L toward a space S along an inclined surface 10 diagonally in the upward direction and ejects the label into the space S, and an assistant roller 21 which is brought into contact with or brought close to a carrying belt 11 of the label conveyor 1, holds the label L carried by the label conveyor 1 and abutted on or brought into contact with a lower side of a commodity M between the label conveyor 1 and the carrying belt 11, and pushes the label L diagonally in the upward direction against a reaction force f when the label L is abutted on or brought into contact with the lower side of the commodity M by the holding force. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a bottom-attached label sticking apparatus that sticks a label from below on a lower surface of a product being transported.
[0002]
[Prior art]
It is known that a tray having a concave bottom has a brush for pressing the label against the bottom of the tray so that the label can be attached to the concave portion (for example, Patent Document 1). 1). On the other hand, as shown in FIG. 7, there is known a label issuing apparatus in which a fall prevention roller 201 is provided on the side of sending out a label L transport belt 100 (for example, see Patent Document 2).
[0003]
[Patent Document 1]
JP 2001-31035 A (Pages 3-4, FIG. 6)
[0004]
[Patent Document 2]
Japanese Utility Model Laid-Open No. 57-143109 (page 3-5, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the invention of Patent Document 1, when a label having a small rigidity or a label having a short length is applied, the label is bent, or the front end of the label does not reach the bottom of the tray, and the label is placed on the tray. It may not be possible to attach it.
On the other hand, since the fall prevention roller 201 of FIG. 7 described in Patent Literature 2 is disposed between the plurality of conveyor belts 100, it cannot exert any force for pinching the label L. However, it is easy to cause a problem that the paper cannot slide on the transport belt 100 and cannot be transported, or a label hitting a tray (not shown) is rebounded.
[0006]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a label sticking apparatus capable of sticking labels reliably even when the bottom surface of the tray is depressed.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the below-attached label attaching device of the present invention is provided on a lower surface of a product supported by a transport surface of a product conveyor for transporting the product, from a gap between the transport surface of the product conveyor. A label-attaching type label sticking apparatus for sticking a label, wherein the label issuing machine issues the label with the label sticking surface facing upward, and the issued label faces the gap along the inclined surface. A label conveyor that is transported diagonally upward and pops out into the gap, and a label that is in contact with or in proximity to the conveyor belt of the label conveyor, and that is conveyed by the label conveyor and is in contact with or in contact with the lower surface of the product. An auxiliary row that is sandwiched between the conveyor belt of the label conveyor and pushes the label obliquely upward against the reaction force when the label comes into contact with or comes into contact with the label due to the pinching force. Characterized by comprising and.
[0008]
In the present invention, the front end of the label jumps out from the upper end of the inclined surface of the label conveyor and contacts or contacts the lower surface of the product. At this time, the bending rigidity of the label itself causes a reaction force to push back the label, but the auxiliary roller holds the label against the reaction force while nipping the label between the label and the conveyor belt of the label conveyor. Since the label is pushed obliquely upward and the label is pushed out toward the lower surface of the product, the label is not pushed back.
[0009]
In a preferred embodiment of the present invention, the conveyor belt and the auxiliary roller of the label conveyor are rotated by a driving source. The label is forcibly pushed out by the driving force of the auxiliary roller, so that the label jumps out from the upper end of the inclined surface of the label conveyor. Therefore, even when a label having a small rigidity or a label having a short length is attached to a product or the like having a recessed lower surface such as a raised bottom tray, the label can reach the lower surface of the product. In addition, the label can be pressed strongly against the lower surface of the product by the driving force of the auxiliary roller.
[0010]
In a preferred embodiment of the present invention, the conveying speed of the product conveyor and the speed of the conveying belt of the label conveyor are set to be substantially equal, and the peripheral speed of the surface of the auxiliary roller is set to the conveying belt of the product conveyor and the label conveyor. Set a value equal to or slightly higher than the speed of In this manner, the label transport speed is substantially equal to or higher than the product transport speed, so that the force for pressing the label against the product is sufficiently exerted, so that the label can be easily attached to the lower surface of the product.
[0011]
Further, in the present invention, it is preferable to provide a roller different from the auxiliary roller between the plurality of transport belts. The additional roller may prevent the label from bending between the auxiliary rollers.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, in the present embodiment, a first conveyor 101 and a second conveyor 105 are provided as a product conveyor. The product M is transported from the first conveyor 101 to the second conveyor 105. A label issuing machine 30 is provided below the first conveyor 101.
[0013]
The label issuing machine 30 has an unwind roller 31 and a take-up roller 32. For example, a printing paper _RL having a large number of labels on a mount is mounted on the unwinding roller 31. When the printing paper _RL is unwound from the unwind roller 31, predetermined printing is performed on the label L by the print head 34 on the platen roller 33 in FIG. Thereafter, the printing paper _RL is folded back by the peeling bar 35, the label L is peeled off from the mount R, the label L is issued, and the mount R is wound up by the winding roller 32 (FIG. 1). At this time, the label L is issued with the sticking surface (the surface to which the adhesive is attached) of the label L facing upward.
[0014]
As shown in FIG. 2, the label conveyor 1 is disposed between the first conveyor 101 and the second conveyor 105, that is, below the gap S between the conveying surfaces of both conveyors. The label conveyor 1 receives the label L issued from the label issuing machine 30, transfers the label L obliquely upward toward the gap S along the inclined surface 10 of the label conveyor 1, and transfers the label L to the gap S. It is something that jumps out. As shown in FIG. 5, the conveyor belt 11 of the label conveyor 1 is divided into a plurality of belts in the width direction X of the label conveyor 1, and the conveyor belts 11 are provided with a slight separation. Therefore, the suction force of the blower 2 acts on the label L on the inclined surface 10. The lower side of the label conveyor 1 faces the suction chamber 3 so that the suction force by the blower 2 works.
The blower 2 constantly sucks air while the conveyors 101 and 105 are being driven.
[0015]
This apparatus is provided with a first auxiliary roller 21 and a second auxiliary roller 22 (corresponding to another roller) shown in FIG. As shown in FIG. 2, the first and second auxiliary rollers 21 and 22 are provided at positions near the upper end 14 of the inclined surface 10 of the label conveyor 1 and on the side facing the inclined surface 10.
[0016]
Of these auxiliary rollers 21 and 22, the first auxiliary rollers 21 are provided by the same number as the transport belt 11 corresponding to the transport belt 11 divided into a plurality of belts. Each first auxiliary roller 21 contacts the surface (inclined surface 10) of the transport belt 11 or faces the surface (inclined surface 10) of the transport belt 11 at a distance smaller than the thickness of the label L. are doing. As a result, the first auxiliary roller 21 clamps the label L in a state of being conveyed or in contact with or in contact with the lower surface of the product M between the conveyer belt 11. That is, the first auxiliary roller 21 supplements the grip force of the label conveyor 1 due to the suction force of the blower 2 with the pinching force when the label L is attached to the product M.
[0017]
The label L generally has a small thickness of 1.0 mm or less. Therefore, as shown in FIGS. 1 and 2, the first auxiliary roller 21 is preferably provided in contact with the transport belt 11. 3 and 4 show a state in which a large gap is provided between the first auxiliary roller 21 and the transport belt 11 because the thickness of the label L is increased to facilitate the illustration of the label L. Is shown in FIG.
[0018]
On the other hand, as shown in FIG. 5, the second auxiliary roller 22 is provided between the plurality of divided conveyor belts 11, that is, between the respective conveyor belts 11. It is provided in parallel with the roller 21. The second auxiliary roller 22 prevents the label L from rising upward and curving by being in contact with the sticking surface of the label L conveyed by the label conveyor 1, and The label L is prevented from sticking to the rotation shaft 23 of the motor 22.
The auxiliary rollers 21 and 22 are preferably formed of a highly peelable member such as silicone rubber or Teflon (registered trademark) so that the label L does not easily adhere.
[0019]
The rotating shafts 19 and 23 of the transport belt 11 and the auxiliary rollers 21 and 22 in FIG. 2 are driven to rotate by a motor (drive source) 50. As shown in FIG. 4, the transport belt 11 is rotationally driven clockwise so as to transport the label L obliquely upward. Said first and second conveyors (product conveyor) 101 and 105 are driven at a predetermined conveying speed V _2, and the conveying speed V ₂ and the speed V ₁ of the said conveyor belt 11 is set to approximately equal ing. On the other hand, the auxiliary rollers 21 and 22 are driven to rotate in a direction opposite to the rotation direction of the transport belt 11, that is, counterclockwise. The peripheral speed V ₃ of the surfaces of the auxiliary rollers 21 and 22 is set to be equal to or slightly larger than the transport speed V ₂ of the product conveyors 101 and 105 and the speed V ₁ of the transport belt 11.
[0020]
Since the transport belt 11 and the auxiliary rollers 21 and 22 are driven to rotate by the same drive source, the respective rotation directions and speed differences can be appropriately changed by a combination of gears. Therefore, the speed of the transport belt 11 and the auxiliary rollers 21 and 22 can be easily set.
[0021]
Next, the operation of the sticking apparatus will be described.
First, when the product M flows on the first conveyor 101 in FIG. 1, the label issuing machine 30 operates the print head 34 at a predetermined timing to start printing the label L. Thereafter, the label issuing machine 30 holds the rear end of the printed label L sandwiched between the platen roller 33 and the print head 34 as shown in FIG. The issuing machine 30 issues the label L.
[0022]
After the issuance of the label L, as shown in FIG. 2, the label L is transferred to the label conveyor 1, and further, the label L is sucked by the blower 2 and adheres to the inclined surface 10 along the inclined surface 10. It is transported diagonally upward.
[0023]
Thereafter, as shown in FIG. 3, the label L is conveyed to the upper part of the label conveyor 1, and the label L tries to jump out of the gap S (FIG. 2) along the inclined surface 10 soon. At the same time, the product M is transferred from the first conveyor 101 to the second conveyor 105. That is, the product M passes above the gap S. Therefore, the upper end of the label L contacts or contacts the lower surface of the product M. At this time, the label L is sandwiched between the first auxiliary roller 21 and the transport belt 11, and is forcibly pushed upward obliquely by the rotation of the first auxiliary roller 21. Therefore, the label L is bent against the reaction force f when the label L comes into contact with or comes into contact with the label L, and is attached to the lower surface of the product M in order from the upper end as shown in FIG.
[0024]
At this time, the label L is urged obliquely upward by the driving force of the first auxiliary roller 21. As a result, since the force for attaching the label L is increased, the lower surface of the product M is depressed and the label L can be applied even if the distance between the lower surface of the product M and the upper portion of the label conveyor 1 is large. Improve the nature. Further, the label L can be more reliably applied to the product M having a soft lower surface.
[0025]
Note that the pinching force applied to the label L between the first auxiliary roller 21 and the transport belt 11 can correct the curl of the label L and prevent the label L from rising up. Can be prevented from inadvertently sticking to devices such as the first conveyor 101.
[0026]
By the way, when the label L is sandwiched between the transport belt 11 and the first auxiliary roller 21, an external force other than a suction force is applied to the label L. There is a possibility that it may be curved so as to float up. Here, in the present embodiment, the second auxiliary roller 22 is provided between the first auxiliary rollers 21 in FIG. Since the second auxiliary roller 22 presses the label L from above, the label L can be prevented from bending. Therefore, the label L can be prevented from sticking to the surface of the rotating shaft 23, and the flat shape of the label L is maintained, so that the reliability of attaching the label L to the lower surface of the product M is further increased.
[0027]
In the above-described embodiment, a case has been described in which the present invention is applied to a bottom-attached label sticking apparatus that sticks a label L from a gap S between two product conveyors 101 and 105. However, in the present invention, as shown in FIG. 6A, in a commodity conveyor 101A having a conveyor belt 101r composed of a large number of ropes, even if a label L is applied from a gap S between the adjacent conveyor belts 101r. Good.
[0028]
The gap S on the conveying surface of the product conveyor may be formed between the belt 101b of the first and second conveyors 101 and 105 and the roller 105r as shown in FIG. 6 (c), it may be formed between the conveyor belts 101b and 105b of the conveyors 101 and 105.
In the above-described embodiment, an example is described in which a label roll in which labels are arranged on a mount is used. However, the present invention can be applied to a mount-less label without a mount.
[0029]
By the way, the label conveyor 1 and the rotating shaft 23 shown in FIG. 5 may be attached to one frame 24 to form a label transport unit, and the label transport unit may be detachably provided together with the unit. In this case, it is preferable that a positioning means is provided in the label transport unit, and the label transport unit is fixed without a tool by, for example, a toggle clamp or a patch lock. With such a configuration, when the label conveyor 1 is clogged with label waste or the like, the label transport unit can be easily attached and detached and cleaned without a tool, so that the cleanability is significantly improved.
[0030]
Further, the label issuing machine 30 of FIG. 1 may be provided so as to be slidable in a direction orthogonal to the transport direction of the label L or the product M. In this way, the position of the label issuing machine 30 can be changed to an arbitrary position in the width direction X (FIG. 5) of the label conveyor 1, so that the label sticking position can be adjusted according to the size of the label L or the width of the product M. Can be set arbitrarily. This increases the versatility of the device.
[0031]
As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will easily envisage various changes and modifications within the obvious scope upon reading this specification.
For example, instead of sucking the label from below, air may be blown from above the label.
Further, the label may be issued with the sticking surface directed obliquely upward instead of directly above.
Further, the auxiliary roller may be driven by a driving source different from the transport belt, and the auxiliary roller does not necessarily need to be driven by the driving source. Further, it is not necessary to provide the second auxiliary roller.
Further, the transport belt may be formed of a single net having a large number of holes.
Accordingly, such changes and modifications are to be construed as being within the scope of the invention as defined by the appended claims.
[0032]
【The invention's effect】
As described above, according to the present invention, the label abutting or in contact with the lower surface of the product is pushed up diagonally upward while the auxiliary roller is sandwiched between the auxiliary roller and the conveyor belt of the label conveyor. It is possible to prevent the label from rebounding when the label abuts or contacts the lower surface of the product. Further, the pinching force can correct the curl of the label or prevent the front end of the label from bowing. Therefore, since the label can be reliably brought into contact with the lower surface of the product, the certainty that the label can be attached is increased.
[0033]
In addition, if the auxiliary roller is driven to rotate by the drive source and is forcibly pushed up while holding the label, even a rigid label can be prevented from being bent between the upper end portion of the transport belt and the lower surface of the product. A label can be stuck, and a label with a short length can be stably stuck. Moreover, the pressing force for applying the label is increased by the driving force of the auxiliary roller, so that the reliability of applying the label is further increased.
[0034]
In addition, if the peripheral speed of the surface of the auxiliary roller is set to be equal to or slightly higher than the speed of the product conveyor and the conveyor belt, the label conveyance speed at the time of attaching the label to the lower surface of the product is the same as the product conveyance speed. Since it is more than the degree, the sticking error due to the speed difference between the label and the product is less likely to occur, and the certainty of the label sticking is increased.
[0035]
Furthermore, if another roller is provided not only at the position corresponding to the transport belt divided into a plurality of label conveyors but also between each transport belt, the label is curved between the auxiliary roller and the auxiliary roller. Can be prevented, so that the reliability of label attachment is further increased.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a lower sticking type label sticking apparatus of the present invention.
FIG. 2 is a schematic cross-sectional view showing the operation of the same device when issuing a label.
FIG. 3 is a schematic cross-sectional view showing the operation of the same device when the upper end of the label comes into contact with the lower surface of a product.
FIG. 4 is a schematic cross-sectional view showing the operation of the same device when attaching a label.
FIG. 5 is a plan view showing a conveyor belt, an auxiliary roller, and another roller of the label conveyor.
FIG. 6 is a plan view showing another embodiment.
FIG. 7 is a perspective view showing an issuing unit of a conventional label issuing device.
[Explanation of symbols]
1: label conveyor 10: inclined surface 11: conveyor belt 101: first conveyor (commercial conveyor)
101A: Conveyor for goods 105: Second conveyor (conveyor for goods)
21: First auxiliary roller 22: Second auxiliary roller (another roller)
30: Label issuing machine V ₁ : Conveyor belt speed V ₂ : Conveyor speed of product conveyor V ₃ : Peripheral speed of auxiliary roller surface L: Label M: Product S: Break

Claims (4)

A bottom-attached label sticking apparatus that sticks a label from a gap between the transport surfaces of the product conveyor to a lower surface of the product supported by a transport surface of the product conveyor for transporting the product,
A label issuing machine that issues a label with the sticking surface of the label facing upward,
A label conveyor for transferring the issued label obliquely upward toward the gap along the inclined surface and popping out the gap,
The label which is in contact with or in proximity to the conveyor belt of the label conveyor, and which is conveyed by the label conveyor and abuts on or is in contact with the lower surface of the product, is sandwiched between the conveyor belt of the label conveyor and the clamping force, A bottom-attached label sticking apparatus comprising: an auxiliary roller that pushes up the label obliquely upward against a reaction force when the label comes into contact with or comes into contact with the label. In claim 1,
A lower labeling device in which the transport belt and the auxiliary roller are rotationally driven by a driving source. In claim 2,
The product conveyor is driven at a predetermined transport speed, and the transport speed and the speed of the transport belt are set to approximately equal speeds,
A lower labeling device in which the peripheral speed of the surface of the auxiliary roller is set to be equal to or slightly larger than the speeds of the commodity conveyor and the conveyor belt. In any one of claims 1 to 3,
The conveyor belt of the label conveyor is divided into a plurality of belts in the width direction,
The auxiliary roller is provided corresponding to the transport belt divided into a plurality of the belts,
A bottom-attached label sticking apparatus further comprising another roller that is in parallel with the auxiliary roller and that comes into contact with the sticking surface of the label, between the plurality of divided conveyor belts.

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