JPH0634267Y2 - Label adsorption device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a label adsorption device for temporarily adsorbing a label in order to attach the label to an article.

[Prior Art] FIGS. 4 and 5 show a conventional label adsorption device.

The label adsorbing device is configured such that the label 30 after printing is released from the label mount 31 for an article that is a symmetrical object to be pasted, and is moved to the downward article direction in a state of being adsorbed to the contact adhering section 20 to attach the label. It is said.

Further, the contact sticking section 20 for sticking the label requires a label suction source.

FIG. 4 shows a label suction device, and an air ejector 21 is used as the suction source of the label shown in FIG.

A fan is used as the label adsorption source of the label adsorption device shown in FIG.
22 is used, and a duct 23 is connected to the contact sticking part.

[Problems to be Solved by the Invention] However, in the label adsorption device shown in FIG. 4, compressed air is required in the air ejector 21 portion, and the running cost increases.

In addition, the structure shown in FIG.
In addition to the required proof strength of 23, the duct distance during attachment was long and the suction response was poor.

Further, in each of the above devices, the contact sticking unit 20 has a moving mechanism.
Since it only moves up and down by 24, the label could be attached only to the surface portion that was completely parallel to the contact attaching portion 20 of the article.

The present invention has been made in view of the above problems, does not use compressed air, has a simple structure and can be manufactured at low cost, and even if the article is not perfectly parallel to the contact sticking portion of the label, It is an object of the present invention to provide a label adsorbing device which can be adhered and adhered, and which has high responsiveness and can be adsorbed and adhered at high speed.

[Means for Solving the Problems] In order to achieve the above object, the label sticking device of the present invention is
A label adsorbing device for adsorbing a printed label (30) by an adsorption source and moving it by a moving mechanism (2) to attach it to an article: a hole (3b) is provided on the adhesive attaching surface (3c), A label holding plate (3) which attracts and holds the label (30), is movable with respect to the holding table (1) provided at the tip of the moving mechanism (2), and is biased in a direction away from the holding table. A locking member (6) provided on the label holding plate (3) for engaging the holding base (1) and locking the label holding plate at a position separated from the holding base by a predetermined distance; A bellows (4), which comprises a body, one of which is fixed to the holding base (1) side and the other of which is fixed to the label holding plate (3) to restrict the rotation of the label holding plate and hold it in a tiltable manner; The locking member and the label holding plate (3) in the bellows (4) Provided, it is characterized in that it comprises a fan (5) as the adsorptive source for attracting the label holding plate label (30) (3).

In addition, the adhesive sticking surface (3c) of the label holding plate (3) is formed corresponding to the size of the label (30a), and the adhering sticking surface has a large number of holes for adsorbing the label (30a). (3
b) is formed, and for adsorbing the other small label (30b) at a position corresponding to the size of the other small label (30b) on the front side in the approach direction of the label of the label holding plate. A large-diameter hole portion (3bb) may be formed.

[Operation] To explain the operation of the above configuration, the label (30) is attracted and held by the suction force of the attraction source at the hole (3b) portion provided in the adhesive attaching surface (3c) of the label holding plate (3). To be done.

When the holding table (1) is moved toward the article by the movement of the moving mechanism (2), the label holding plate (3) is pressed against the article. When the holder (1) further moves toward the article, the bellows (4) and the spring (10) contract, and the label holding plate (3) resists the urging force between the holder and the article (1). Pressed to attach the label (30).

By providing the label holding plate (3) with the fan (5) as a suction source of the label (30), the response of the suction operation can be improved.

Further, by providing a large number of holes (3b) on the adhesive pasting surface (3c) of the label holding plate (3) and by providing a large diameter hole (3b) on the front side in the entry direction of the label (30). Even a small label (30b) can be surely adsorbed.

[Embodiment] FIG. 1 (a) is a side sectional view showing an embodiment of the label adsorption device of the present invention.

The holding base 1 is a hollow frame fixed to the lower end 2a of a vertical movement mechanism 2 as a moving mechanism, and openings 1a and 1b are opened at the central portions of the upper and lower surfaces of the holding base 1, respectively. . The label holding plate 3 is fixed to the holding table 1 by a bellows 4. One end 4a of the bellows 4 is fixed to the outer circumference of the opening 1a of the holding table 1, and the other end 4b is fixed to the outer circumference of the opening 3a of the label holding plate 3. The bellows 4 is made of an elastic material such as rubber,
It has a plurality of curved portions 4c formed in a bellows shape in a cylindrical shape, and is vertically expandable and contractible.

The fan 5 is fixed on the upper surface of the label holding plate 3 and inside the bellows 4 above the opening 3a of the label holding plate 3, and the upper end 5a of the fan 5 penetrates through the opening 1b of the holding base 1 to hold the holding base 1.
Located inside. Also, the diameter of the fan 5 is
The fan 5 has a diameter smaller than that of 1b, and this fan 5 forms an air passage for sucking from the lower label holding plate 3 and discharging it toward the upper holding table 1.

The upper part of the fan 5 is fixed to a locking member 6 having a diameter larger than that of the opening 1b. Label holding plate 3
Are locked to the holding table 1.

Further, magnets 7 a and 7 b are fixed via fixing members 8 at two symmetrical positions on the upper end 5 a of the fan 5. Further, a spring 10 is provided between the fixture 8 and the upper end inside the holding table 1.
The label holder 3 is positioned at a lower dead center below the holder 1 by a predetermined distance.

Reed switches 9a and 9b are provided inside the holding table 1 corresponding to the magnets 7a and 7b, respectively. The reed switches 9a and 9b are labeled when the magnets 7a and 7b are close to each other, that is, as shown in FIG. When the holding plate 3 is located at the bottom dead center with respect to the holding base 1, the magnetic field acts to turn it on, and the label holding plate 3 moves in the direction of the holding base 1 (at the time of label sticking described later) to generate magnets 7a, 7b. It is configured to turn off when is isolated above.

As will be described later, when the label holding plate 3 moves in the direction of the holding table 1, the rotation of the label holding plate 3 is only stopped by the bellows 4. Therefore, the rubber bellows 4 is parallel or inclined with respect to the holding table 1. It is possible to move as it is, and when tilting, only one of the reed switches, for example 9a, is OFF
Will be done. When only one of the reed switches 9a and 9b is turned off, this signal is input to an electric circuit (not shown), and it is configured to detect that labeling of an article described below is completed.

As shown in FIG. 1 (b), the adhesive sticking surface 3c on the lower surface of the label holding plate 3 is
As shown in FIG. 3, a plurality of holes 3b are formed, and the label 30 sent out from the label printing unit (not shown) in the holes 3b enters in the direction of arrow A, but the holes 3b on the front side in the direction of entry.
The b is formed to have a larger diameter than the other holes 3b. The attraction force of the fan 5 increases as the diameter of the hole 3bb increases. As a result, in the case of a small label 30b other than the normal label 30a,
The suction force was low because it was sucked by only a small number of holes, but in this embodiment, even with a small label 30b, the suction area can be increased by the large-diameter hole 3bb, and the suction force is increased. There is.

Next, the operation of the label suction device having the above configuration will be described.

Normally, the fan 5 is always operating.

The label 30 is peeled from the label mount and enters from the direction of arrow A. At this time, the surface of the label 30 is adsorbed by the hole 3b of the adhesive attachment surface 3c of the label holding plate 3.

Next, the vertical movement mechanism 2 moves downward with the article, and the adhesive attaching surface 3c of the label holding plate 3 is pressed against the article. And the second
As shown in the drawing, when the vertical movement mechanism 2 is located downward, the pressing force of the label holding plate 3 is increased by the spring 10, and the label on the back surface of the label 30 is pressed and stuck to the article.

At this time, the label holding plate 3 moves to the top dead center position in the direction of the moving table 1 depending on the pressing force of the spring 10, and the magnet 7
The a and 7b are disengaged upward from the positions of the reed switches 9a and 9b, the reed switches 9a and 9b are turned off, and the label sticking completion signal is output. As a result, the vertical movement mechanism 2 returns to the initial position. Further, when the vertical movement mechanism 2 is lifted, the label holding plate 3 is locked to the lower part of the inner surface of the holding member 1 of the holding member 1 by the restoring force of the spring 10 and moves to the bottom dead center position with respect to the holding table 1. The holding table 1 and the label holding plate 3 are raised at the same time.

When attaching a label to an article, the label holding plate 3 should always be attached by the bellows 4 in the same state without rotating in the horizontal direction with respect to the vertical movement mechanism 2 that fixes the holding plate 1 and the holding base 1. You can

Further, even when the sticking surface of the article is inclined as shown in FIG. 3, the label holding plate 3 is fixed to the label holding plate 3 by the bellows 4 which is an elastic body. Since the label 30 can be tilted, the label 30 can be attached to an article with the label holding plate 3 tilted.

Further, according to the above-described embodiment, the fan 5 is configured to be constantly rotating. However, when the sticking force between the label 30 and the article is weak due to, for example, water adhering to the article, it is temporarily Since the fan 5 continues to rotate even if the label 30 is attached to the article, the suction force causes the fan 5 to peel off from the article when rising after the application is completed, and the label 30 remains adsorbed on the adhesive attachment surface 3c. there is a possibility. Therefore, the fan 5 is temporarily stopped when the reed switches 9a and 9b are turned off, and when the vertical movement mechanism 2 is raised, the fan 5 is operated again by a detection means (not shown) so that the label 30 becomes an article. It can be reliably attached. Even if the fan 5 is frequently activated and stopped in this way, since the fan 5 is provided in a position close to the adhesive sticking surface 3c of the label holding plate 3, the suction force of the adhesive sticking surface 3c is the fan 5. Responsiveness to the actuation / stop of

In this embodiment, the spring 10 positions the label holding plate 3 with respect to the holding base 1 at the bottom dead center below the predetermined distance and increases the pressing force at the time of sticking the label. Remove the spring 10 with the configuration of
A mechanism that also serves the role of can be implemented in the same manner, and the same effect as the above-described embodiment can be obtained.

[Advantage of the Invention] Since the label suction device of the present invention has a structure in which the rotation of the label holding plate is restricted by the bellows and is held in a tiltable manner, the label is not attached obliquely to the article, and Even when the article is not horizontal with respect to the label holding plate, the label holding plate can be tilted to attach the label.

Since the fan is installed in the bellows in the label holding plate, it does not use compressed air, does not take up space for installing the fan, has a simple structure and can improve fan responsiveness. Can be done at high speed and can be manufactured at low cost.

In addition, the label holding plate is formed according to the size of the label, a plurality of holes can be formed to adsorb the label, and further,
Since a large-diameter hole is formed on the front side of the label in the entrance direction of the label to match the size of another small label,
Even a small label can be adsorbed with a large adsorption force.

[Brief description of drawings]

FIG. 1 (a) is a cross-sectional view showing a label adsorbing device of the present invention, FIG. 1 (b) is a view showing an adhesive sticking surface of the device, and FIGS. 2 and 3 are operations of the device. FIG. 4, FIG.
FIG. 5 and FIG. 5 are views showing a conventional label sticking device. 1 ... Holding stand, 2 ... Vertical movement mechanism, 3 ... Label attaching part, 3b ...
Hole, 3bb ... Large diameter hole, 4 ... Bellows, 5 ... Fan,
6 ... Locking member, 7a, 7b ... Magnet, 9a, 9b ... Reed switch, 10 ... Spring.

Claims (2)

[Scope of utility model registration request] 1. A label adsorption device for adsorbing a printed label (30) by an adsorption source and moving it by a moving mechanism (2) to attach it to an article: a hole (3b) on its adhesive attaching surface (3c). ) Is provided to adsorb and hold the label (30), and the label holding is urged in a direction away from the holding table (1) provided at the tip of the moving mechanism (2). A plate (3); a locking member (which is provided on the label holding plate (3), engages with the holding base (1), and locks the label holding plate at a position separated from the holding base by a predetermined distance. 6) and; a bellows made of an elastic body, one of which is fixed to the holding base (1) side and the other of which is fixed to the label holding plate (3) so as to restrict the rotation of the label holding plate and hold it in a tiltable manner. (4) and; the locking member and the label in the bellows (4) Provided between holding plates (3), the label (30) labels the adsorption device characterized by comprising a fan (5) as the adsorptive source adsorbed to the label holding plate (3). 2. An adhesive sticking surface (3) of the label holding plate (3).
c) is formed corresponding to the size of the label (30a), and a large number of holes (3b) for adsorbing the label (30a) are formed on the adhesive pasting surface, and the label holding plate of the label holding plate is formed. A large-diameter hole (3bb) for adsorbing the other small label (30b) is formed at a position corresponding to the size of the other small label (30b) on the front side in the approach direction of the label. Item 1. The label adsorption device according to item 1.