JP2001348013A - Label carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label carrier capable of consistently carrying a label for a long time. SOLUTION: In this label carrier for carrying the label while holding the label 20 by a belt conveyor 40 and a guide plate 42, the guide plate 42 is curved along the carrying direction, and the guide plate 42 is abutted on a label carrying surface of the belt conveyor 40. Even when a round belt 50 is worn, the round belt 50 can consistently maintain a condition in contact with the guide plate 42, and consistently carry the label 20 for a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label transport device, and more particularly to a label transport device for transporting labels using a conveyor.

[0002]

2. Description of the Related Art Conventionally, when a label is transported in a vertical direction, the label is transported using a belt conveyor and a guide plate. That is, a guide plate is arranged in contact with the label conveying surface of the belt conveyor, and the label is conveyed while sandwiching the label between the guide plate and the belt conveyor.

[0003]

However, in the conventional label conveying apparatus, when the belt is worn out due to long-term use, a gap is generated between the belt conveyor and the guide plate to stably convey the label. There was a drawback that it would not be possible. In particular, a belt conveyor having a configuration using a round belt has a problem that frequent maintenance is required because the belt is easily worn.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a label transport apparatus capable of transporting labels stably for a long period of time.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a belt conveyor having a belt stretched between a pair of rollers, and a belt conveyor arranged opposite to a label conveying surface of the belt conveyor. In a label transport apparatus that supplies a label between a guide plate and transports the label while sandwiching the label between the belt conveyor and the guide plate, the guide plate is curved toward a label transport surface side of the belt conveyor along a transport direction. The label transport device is characterized in that the label transport surface is formed by pressing the label transport surface with the curved guide plate.

According to the present invention, in order to achieve the above object, the conveyor comprises a plurality of round belts stretched at a constant pitch between a pair of rollers. A label transport device is provided.

According to the present invention, since the guide plate is formed in a curved shape, even if the belt is worn, the belt is always in contact with the guide plate due to its elasticity. Thereby, the label can be stably transported for a long period of time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the label transport device according to the present invention will be described below in detail with reference to the accompanying drawings.

Here, an example in which the present invention is applied to a label pasting machine will be described. A label pasting machine is a device that, for example, is incorporated into a line to paste a label on a processed food container.
A label is affixed to the bottom of the packaged container.

FIG. 1 is an explanatory view schematically showing a label pasting machine. The label sticking machine 10 includes a sticking object transporting unit 14 that transfers the sticking object 12, a label supplying unit 18 that supplies the label continuum 16, a cutting unit 22 that cuts the label continuum 16 into a single label 20, and And a label sticking section 24 for sticking the cut label 20 to the article 12 to be stuck.

The adhered article transport section 14 is provided with a pre-stage conveyor 26.
And a rear-stage conveyor 28. The front-stage conveyor 26 and the rear-stage conveyor 28 are horizontally disposed at a predetermined interval, and run synchronously when driven by a motor (not shown).

The label supply unit 18 includes a supply shaft 30 that rotatably holds the label continuous body 16 wound in a roll shape.
And a label feeding device 32 that feeds the continuous label body 16 held by the feeding shaft 30 to the cutting section 22.

The label continuum 16 comprises a number of labels 20,
Are continuously formed in a belt shape, and are wound around a core and formed in a roll shape. Each label constituting the label continuum 16 is a label without a backing sheet, has a release agent layer on the front surface and a pressure-sensitive adhesive layer on the back surface, and is cut and used one by one.

FIGS. 2 and 3 show the label feeding device 3 respectively.
It is the perspective view and front view which show the structure of No. 2. As shown in the figure, the label feeding device 32 includes a platen roller 34 and a nip roller 36.

The platen roller 34 has four feeding rings 34B, 34 at predetermined intervals on the outer periphery of the center shaft 34A.
B,... Are fixed. A motor (not shown) is connected to the center shaft 34A, and the motor drives the platen roller 34 to rotate.

On the other hand, the nip roller 36 has a central shaft 36A.
A pressing ring 36B made of rubber is fitted on the outer periphery of. The pressing ring 36B is provided movably along the central axis 36A, and can be installed at an arbitrary position.

The platen roller 34 and the nip roller 3
6 are arranged in parallel with each other, and the platen roller 3
, The feed rings 34B, 34B,.
6 is in contact with the outer periphery of the central shaft 36A. Further, the pressing ring 36B is arranged at a substantially central position of the central axis 36A.

The label feeding device 3 configured as described above
2, when the label continuum 16 is supplied between the platen roller 34 and the nip roller 36, the label continuity 16
Is nipped between the platen roller 34 and the nip roller 36, pushed out by the rotating platen roller 34, and sequentially conveyed upward. At this time, the label continuous body 16 passes between the platen roller 34 and the nip roller 36 while being pressed at a substantially central portion by the pressing ring 36B. As a result, the continuous label body is conveyed in a state of being bent at a substantially central portion in a direction orthogonal to the conveying direction and curved. And label continuum 1
When the label 6 is transported in a curved state, a so-called stiffness is formed in the label continuous body 16, so that the label can be transported straight without drooping even after passing between the platen roller 34 and the nip roller 36. become.

The cutting section 22 is constituted by a pair of cutting blades 38,38. The pair of cutting blades 38, 38
Are provided so as to be able to move forward and backward by a moving mechanism (not shown). The label continuous body 16 is fed between the pair of cutting blades 38 and 38 so that the label continuous body 16 becomes a single label 20 and 20. , ... cut.

The label sticking section (label transport device) 24
As shown in FIGS. 4 and 5, it is constituted by a belt conveyor 40 and a guide plate 42.

The belt conveyor 40 has a pair of rollers 4
6 and 48, and a plurality of round belts 50, 50, ... wound around the rollers 46, 48.

A pair of rollers 46, 48 have grooves 46a, 48a formed at a constant pitch on the outer circumference thereof, and a round belt 50 is wound around the grooves 46a, 48a to form a belt conveyor 40. . Here, the pair of rollers 46, 48 are formed such that one roller 46 has a larger diameter than the other roller 48, and a motor (not shown) is connected to the large diameter roller 46. .
When this motor is driven, the rollers 4
6 rotates and the round belt 50 runs.

The round belt 50 is formed endlessly by an elastic body, and its surface is subjected to a release treatment by a release agent such as silicon. The label 20 is conveyed in a state in which its sticking surface (back surface) is in contact with the round belt 50.
Sticking is prevented.

The guide plate 42 is provided on the belt conveyor 4.
It is formed in a plate shape having substantially the same width as 0, and is curved at a predetermined curvature along the conveying direction of the belt conveyor 40. The guide plate 42 is provided with round belts 50, 5, 5
0,... Are pressed against the round belts 50, 50,.
Is given a predetermined tension.

The label sticking section 24 constructed as described above
, The label 2 is placed between the belt conveyor 40 and the guide plate 42 while the round belts 50, 50,.
If 0 is supplied, the label 20 becomes a round belt 50, 50,.
And the guide plate 42, and the belt conveyor 40 along with the running round belts 50, 50,.
And the guide plate 42 is transported upward.
Then, it is extruded from between the front-stage conveyor 26 and the rear-stage conveyor 28, and is adhered to the back surface of the adherend 12 transported on the conveyors 26 and 28.

Next, the operation of the label pasting machine 10 configured as described above will be described.

In the label applicator 10, the label continuous body 16 wound in a roll shape is sequentially fed out from a supply shaft 30 by a label feeding device 32 and fed to a cutting section 22, where the label unit is sequentially united. After cutting into two labels 20,
The label is attached to the back surface of the object 12 to be transported on the conveyors 26 and 28 in the label attaching section 24.

Here, the label continuous body 16 fed from the supply shaft 30 is guided between the platen roller 34 and the nip roller 36 via the guide roller 44, and is held between the platen roller 34 and the nip roller 36. , And is sequentially pushed out from the supply shaft 30 by being pushed out by the rotating platen roller 34. At this time, when the label continuous body 16 passes between the platen roller 34 and the nip roller 36, the center portion is pressed by the pressing ring 36B, and the label continuous body 16 is bent at a substantially central portion in a direction orthogonal to the conveying direction. Roller 34 and nip roller 3
6 and is fed out. When the label continuous body 16 is fed out in such a curved state, a so-called stiffness is formed in the label continuous body 16, and the platen roller 34 is formed.
Even after passing between the nip roller 36 and the nip roller 36, the paper can be transported straight without hanging down.

Then, the continuous label body 16 transported straight in this manner is provided with a pair of cutting blades 38 of the cutting section 22,
38, and is cut into a single label 20 by being sandwiched between the pair of cutting blades 38, 38.

The cut single label 20 is fed between the belt conveyor 40 of the label attaching section 24 and the guide plate 42, and is transported upward together with the traveling round belts 50, 50,. It is guided between the conveyor 26 and the subsequent conveyor 28. And it is stuck on the back surface of the to-be-sticked thing 12 which passes there.

Here, in the label attaching section 24 for attaching the label 20 to the article 12 to be attached, the guide plate 42 is formed to be curved along the conveying direction of the belt conveyor 40, and the round belts 50, 50,. Because it is pressed against and installed, even if the round belts 50, 50, ...
Are worn, the round belts 50, 50, ...
Can always maintain a contact state with the guide plate 42. Accordingly, the label 20 can be stably conveyed and stuck for a long period of time until the round belt 50 breaks.

As described above, in the label sticking machine 10 of the present embodiment, the contact state between the round belts 50, 50,... And the guide plate 42 can be maintained at all times, so that the label 20 can be stably transported for a long time.

In this embodiment, the belt conveyor 40 has a configuration in which thin round belts 50, 50,... Are wound at a constant pitch between a pair of rollers 46, 48. A belt-shaped belt formed between the rollers 46 and 48 may be used.

In the present embodiment, the case where the label 20 without the backing sheet is conveyed has been described as an example. However, the present invention is not limited to this, and the present invention can be applied to the case where the label with the backing sheet is conveyed. Can be.

Further, in the present embodiment, an example in which the present invention is applied to a label pasting machine has been described. However, the present invention can be applied to various apparatuses which need to convey labels.

[0036]

As described above, according to the present invention,
By bringing the curved guide plate into contact with the label conveying surface of the belt conveyor, the belt can always be kept in contact with the guide plate even when the belt is worn. Thereby, the label can be stably transported for a long period of time.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing a label pasting machine.

FIG. 2 is a perspective view illustrating a configuration of a label feeding device.

FIG. 3 is a front view showing the configuration of the label feeding device.

FIG. 4 is a side view showing a configuration of a label attaching section.

FIG. 5 is a front view showing a configuration of a belt conveyor.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Label sticking machine, 12 ... Sticking thing, 14 ... Sticking thing conveyance part, 16 ... Label continuous body, 18 ... Label supply part, 2
0: label, 22: cutting part, 24: label attaching part, 26
... front-stage conveyor, 28 ... rear-stage conveyor, 30 ... supply shaft,
32: label feeding device, 34: platen roller, 34A
... Central shaft, 34B ... Feed ring, 36 ... Nip roller,
36A: central axis, 36B: press ring, 38: cutting blade,
40: belt conveyor, 42: guide plate, 44:
Guide rollers, 46, 48 ... rollers, 46a, 48a ...
Groove, 50 ... round belt

Claims (2)

[Claims] 1. A label is supplied between a belt conveyor having a belt stretched between a pair of rollers and a guide plate arranged opposite to a label conveying surface of the belt conveyor. In a label transport apparatus that transports a label while sandwiching the label with a guide plate, the guide plate is formed to be curved toward a label transport surface side of the belt conveyor along a transport direction, and the label transport is performed by the curved guide plate. A label transport device characterized in that a surface is pressed and arranged. 2. The label transport apparatus according to claim 1, wherein the conveyor is configured by stretching a plurality of round belts at a constant pitch between a pair of rollers.