JPH0210014B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a labeling device.

Conventionally, there is a labeling device that sucks the label issued by a label printer using negative pressure and then uses wind pressure to affix the label to the object to be affixed. It has the disadvantage that the attachment operation is uncertain.

The present invention has been made in view of these points, and an object of the present invention is to provide a label pasting device that can reliably paste labels.

In this invention, an arm is provided at one end with a label affixing body that sucks the label by negative pressure, and the other end of this arm is connected to a drive shaft to rotate the arm in a substantially vertical plane to attach a label to the label affixing body. The label can be moved between the label issuing position and the label pasting position, and can be approached downward from above at both the label issuing position and the label pasting position, and the label sucked by negative pressure can be covered by the label pasting body. The label is pressed directly against the object to be applied to prevent the label from flying off, and a fixed ring is fixedly installed on the same axis as the drive shaft, and a rotary ring with the same diameter as the fixed ring is rotatable at the free end of the arm. , an endless band is wound around the fixed ring and the rotating ring, and the labeling body is fixedly connected to the rotating ring, so that the suction surface of the labeling body is fixed at all positions of the rotating movement of the arm. The non-adhesive side (top side) of the label in the label printing position facing downwards.
At the label application position, the label is pressed against the object to be affixed with the adhesive side facing downward, thereby ensuring that the label is affixed to the object. The arm can be moved between the label suction position and the label pasting position with a simple movement of reciprocating in one direction, thus simplifying the structure. Even if when adjusting the slack of the endless belt, the labeling body deviates from the rotating wheel and the horizontality of the lower surface is disturbed, the buffer member provided between the rotating wheel, the labeling body and the labeling body is bent. This allows the lower surface of the label affixing body to conform to the object to which it is affixed, thereby ensuring that the label can be affixed reliably.

An embodiment of the present invention will be described based on the drawings.
1 is a label printer, and in front of this label printer 1, a weighing conveyor 2 and a label pasting conveyor 3 are connected and arranged. Further, a frame 5 that rotatably supports a drive shaft 4 is provided between the label printer 1 and the label pasting conveyor 3. This drive shaft 4 consists of a large diameter pulley 6 and a belt 7.
and a motor 9 via a small diameter pulley 8. Further, a fixed pulley 10, which is a fixed ring, is fixedly screwed to the frame 5. An arm 12 has one end fitted to the drive shaft 4 while being prevented from rotating, and a support shaft 11 rotatably held at the other end.
is provided. A rotary pulley 13, which is a rotary ring, is fitted onto the support shaft 11 while being prevented from rotating, and a belt 14, which is an endless belt, is wound around the rotary pulley 13 and the fixed pulley 10. The arm 12 is divided into a plurality of split arms 15 and 16 in the middle, and the split arms 15 and 16 are connected to a connecting plate 17.
A plurality of screws 1 passed through horizontally long holes 18 formed in
9 are screwed onto the respective split arms 15 and 16. Furthermore, an idler 20 is attached to the split arms 15 and 16 and is pressed against the belt 14.

Next, the label issuing port 21 of the label printer 1 is provided with inactive rollers 22 made of Teflon or the like, and a solenoid 24 having a protrusion 23 that protrudes upward from between these rollers 22. A label attachment body 25 is fixed to the support shaft 11. This label affixed body 2
A suction surface 26 is formed on the lower surface of 5. This suction surface 26 is connected to a negative pressure generation source (not shown) via a flexible hose 27.

In such a configuration, by rotating the motor 9 forward and backward at a constant angle, the arm 12 is rotated back and forth between the label issuing port 21 and the label pasting conveyor 3, as shown in FIG. On the other hand, the adhered object 28
is weighed on the weighing conveyor 2, and a label 29 on which the weight value, price, etc. are printed is issued from the label issuing port 21 and transferred to the roller 2, as shown in FIG.
Supported by 2. The lower surface of the label 29 is an adhesive surface, but since the roller 22 is made of Teflon, it will not adhere. At the timing when the label sticking body 25 moves to the label issuing port 21, the conduit between the negative pressure generation source and the suction surface 26 is connected, and the solenoid 24 is energized as shown in FIG. Push up the label 29 further. Thereby, the label 29 is reliably attracted to the suction surface 26 of the label sticking body 25. Next, the motor 9 is rotated in one direction, and the arm 12 is rotated toward the labeling conveyor 3 through the process shown in FIG. 7, as shown in FIG. 8. At this time, since the fixed pulley 10 does not rotate, rotational force is generated on the belt 14 and the rotating pulley 1
Rotate 3 by a certain angle. The fixed pulley 10 and the rotating pulley 13 have the same diameter, so the label pasting body 25 maintains the same posture at any position within the rotation range of the arm 12, and in the label issuing position, the suction surface 26 is directly below. If the label 29 is in the label sticking position, hold the label 29 horizontally and lower the arm 12 to remove the label 29.
is pressed against the object to be affixed 28 conveyed onto the label affixing conveyor 3. Therefore, label 29
can be reliably attached to the object 28 without floating in the air. After pasting, the motor 9 reverses by a certain angle, and the arm 12 rotates toward the label issuing port 21 repeatedly.

The idler 20 prevents the belt 14 from loosening, but if the idler 20 cannot fully adjust the belt 14, the screw 19 can be loosened, the divided arms 15 and 16 may be slid in the longitudinal direction, and the screw 19 can be tightened. As shown in FIGS. 9 and 10, the support shaft 11
By fixing a buffer member 30 such as a cushion material or a coil spring to the bottom end of the buffer member 30 and fixing the label attaching body 25 to the lower end of this buffer member 30, the tension of the belt 14 changes and the direction of the label attaching body 25 is slightly deviated. Even if the upper surface of the object 28 to be affixed is inclined, the lower surface of the label affixing body 25 is well adapted to the object 28 to be affixed due to the bending action of the buffer member 30, so that the label 29 can be reliably affixed.

Further, the arm 12 can be moved between the label issuing position and the label sticking position by a simple movement of reciprocating in one direction, and the structure can be simplified.

Since this invention is configured as described above, the arm is rotated to move the label pasting body back and forth between the label issuing position and the label pasting position, and the label sticking body is moved upwardly at both the label issuing position and the label pasting position. It is possible to apply the label downward by pressing the vacuumed label against the object to be applied using negative pressure. The suction surface of the label affixing body can face straight down at all positions of operation. Therefore, at the label issuing position, the non-adhesive side of the label is suctioned to improve separation during label affixing, and at the label affixing position, the label The adhesive side of the arm can be pressed against the object to be affixed with the adhesive side facing downward, so that the label can be applied reliably. Furthermore, the arm can be moved back and forth between the label issuing position and the label applying position. Furthermore, when the slack of the endless band wound around the stationary ring and the rotating ring is adjusted by the idler provided on the arm, the label affixing body is deviated along with the rotating ring, and the bottom surface of the endless band is adjusted. Even if the levelness of the label becomes incorrect, by providing a buffer member between the rotating wheel and the label attachment object, the buffer member is bent and the bottom surface of the label attachment object conforms to the object to which the label is attached, allowing the label to be attached. This has the advantage of being able to reliably perform the following steps.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
The figure is a side view, Figure 2 is a plan view, Figure 3 is a partially enlarged side view showing the drive mechanism of the arm, Figure 4 is a partially enlarged plan view with a cross section, and Figure 5 is an enlarged plan view. Figures 8 to 8 are partially enlarged side views showing the operation from label suction to label pasting, and Figures 9 and 10 show a buffer member between the spindle and the label affixing body. It is a side view of a part which expanded and showed the provided state together with label pasting operation. 4... Drive shaft, 10... Fixed pulley (fixed wheel),
12... Arm, 13... Rotating pulley (rotating wheel),
14... Belt (endless belt), 20... Idler,
25...Label pasting body, 26...Suction surface, 28...
...Object to be pasted, 29...Label, 30...Buffer member.

Claims (1)

[Scope of Claims] 1. A drive shaft is provided at an intermediate position in the longitudinal and vertical directions between the label issuing position located above and the label sticking position located below the front of this label issuing position, and the drive shaft is provided with the above-mentioned An arm that reciprocates between the label issuing position and the label sticking position is attached, a fixed ring is fixedly provided on the frame supporting the drive shaft, and the fixed ring is attached to the free rotating end of the arm. A rotary ring having the same diameter is rotatably connected with its axis parallel to the drive shaft, an endless band is wound around the fixed ring and the rotating ring, and a label is applied to the axis of the rotating ring by negative pressure. 1. A label pasting device, characterized in that a label pasting body is fixedly connected to the label pasting body, which has a suction surface formed on a lower surface thereof and presses the label to an object to be pasted. 2. A drive shaft is provided at an intermediate position in the front-rear direction and vertical direction between the label issuing position located above and the label sticking position located at the front lower part of this label issuing position, and the drive shaft is connected to the label issuing position and the label attaching position. An arm that rotates back and forth between the adhesion position is attached, a fixed ring is fixedly provided on the frame supporting the drive shaft, and a rotary ring having the same diameter as the fixed ring is provided on the free rotation end side of the arm. are rotatably connected with an axis parallel to the drive shaft, an endless band is wound around the fixed ring and the rotating ring, and a suction surface for sucking the label by negative pressure is provided on the axis of the rotating ring. A label pasting device, characterized in that a label pasting body formed on a lower surface of the label pasting body for pressing the label against an object to be pasted is fixedly connected, and an idler for applying tension to the endless strip is attached to the arm.