JPH024470B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a labeling device that affixes a label issued from a label printer to a product on a labeling conveyor.

BACKGROUND ART Conventionally, there have been labeling devices that automatically affix a label issued from a label printer to a product, that is, an object to which it is affixed. To give an example,
First, the label issued by the label printer is suctioned and held using negative pressure, and then, with the label placed on top of the product, airflow is applied from above and the label is affixed to the object using wind pressure. That's what I do.

Problems to be Solved by the Invention In this conventional method, the label is in a free state and flies in the air between the holder that holds the label and the surface of the object to which it is attached, making it difficult to attach the label. There is a problem of uncertainty. In addition, the location of the label is inaccurate,
Another problem is that it is difficult to apply the label in a flat state and the label is likely to wrinkle.

Means for solving the problem: A frame is provided that reciprocates in a substantially vertical position between the label issuing position and the label pasting position, and a fulcrum shaft for holding the roller is attached to this frame.
A rotating frame that rotates around the fulcrum shaft is attached to the frame, and an electromagnetic drive body and a label gripping roller connected to the electromagnetic drive body and moving toward and away from the lower outer periphery of the roller are attached to the frame. An actuating body that is always urged downward and protrudes downward from the frame is attached to the frame so as to be able to move vertically, and the actuating body and the rotating frame are arranged in a horizontally long position at a position offset from the fulcrum axis. The connection was made by an engagement hole and a pin that engages with the engagement hole.

Function At the label issuing position, the label issued horizontally is held between the roller and the label gripping roller in the same position, and at the label attaching position, the rotating frame rotates around the fulcrum shaft that holds the roller. , the label is attached to the object from one side edge, which stabilizes the attachment position and eliminates the risk of wrinkles.Furthermore, since the roller presses the top surface of the label, the label attachment condition is also stable. In particular, the rotation of the rotating frame is connected to the actuating body through a horizontally elongated engagement hole and a pin that engages with this engaging hole, so when the frame moves up and down, the actuating body is connected to the object to be affixed. This can be done simply by engaging and disengaging the

Embodiment 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. Additionally, a drive shaft 4 is provided between the label printer 1 and the label pasting conveyor 3.
A frame 5 is provided which rotatably holds the. This drive shaft 4 is connected to a motor 9 via a large-diameter pulley 6, a belt 7, and a small-diameter pulley 8. Further, a fixed pulley 10 is fixedly screwed to the frame 5. One end is fitted onto the drive shaft 4 while being prevented from rotating, and the other end is fitted with a support shaft 11.
An arm 12 is provided which is rotatably held. A rotary pulley 13 is fitted onto the support shaft 11 while being prevented from rotating, and a belt 14 is wound around the rotary pulley 13 and the fixed pulley 10. The arm 12 has a plurality of divided arms 15, 16 in the middle.
These divided arms 15 and 16 are telescopically connected by a connecting plate 17. Furthermore, an idler 18 is attached to these split arms 15, 16, and is elastically connected to the belt 14.

Therefore, a frame 19 is attached to one end of the support shaft 11.
are connected. That is, a block 21 is attached to the upper part of the frame 19 with a hollow cushioning rubber 20 interposed therebetween, and this block 21 is fitted onto the support shaft 11 while being prevented from rotating. A fulcrum shaft 22 is installed on both sides of the frame 19. This fulcrum shaft 22 also serves as a pivot point for the rotating frame 23, and also holds the roller 24 rotatably. In addition, the rotating frame 23
A solenoid 25, which is an electromagnetic drive unit, is attached to the solenoid 25 so that its vertical position can be adjusted freely.An arm 28, which is connected to a movable core 26 of the solenoid 25 and moves up and down around a pin 27, has a label attached to it via a spindle 29 on both sides. A roller 30 is held. A spring 31 is provided at the end of the arm 28 and the rotating frame 23 to urge the movable core 26 of the solenoid 25 in the return direction.
is installed. Further, the frame 19 holds a slide frame 32 which is an operating body and is movable up and down. On both sides of the slide frame 32, there are vertical guide holes 33 that fit into the fulcrum shaft 22 that protrudes from the outside of the frame 19, and guide pins 34 that also protrude from the outside of the frame 19.
A vertically long guide hole 35 that fits into the rotating frame 23 and a horizontally long engagement hole 37 that fits into the pin 36 protruding from the outside of the rotating frame 23 are formed. In FIG. 5, the rotation frame 23 is urged counterclockwise around the fulcrum shaft 22 by tensioning the spring 38 between the pin 36 on both sides and the slide frame 32, but the movement of the pin 36 is Movement of the rotation frame 23 is prevented by being pressed by the upper edge of the engagement hole 37. That is, the slide frame 32 is always urged downward by a strong spring 40, which is stronger than the spring 38, stretched between the pin 39 erected on both sides thereof and the fulcrum shaft 22. Furthermore, the slide frame 32
A permanent magnet 41 is held on one side, and a reed switch 42 is provided on the frame 19 to face the permanent magnet 41 when the slide frame 32 moves upward.

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 43 formed in the label printer 1 and the label pasting conveyor 3, as shown in FIG. . On the other hand, the object to be adhered 44 is weighed on the weighing conveyor 2, and a label 45 on which the weight value, price, etc. are printed is issued from the label issuing port 43 as shown in FIGS. 5 and 7. FIG. 7 shows a state in which the frame 19 has reached the label issuing port 43, and in the next step, the solenoid 25 is energized as shown in FIG. 8, and the label gripping roller 30 is connected to the roller 24 to grip the label 45. Then, the motor 9 rotates in one direction and the frame 19 moves onto the labeling conveyor 3 together with the arm 12. Since the fixed pulley 10 does not rotate during this movement, the belt 14
A rotational force is generated to rotate the rotary pulley 13 by a certain angle. Since the fixed pulley and the rotating pulley 13 have the same diameter, the frame 19 is maintained in a vertical position at any position within the rotation range of the arm 12. frame 1
During the lowering of the label 9, the label 45 is held by the roller 24 and the label holding roller 30, so that it does not fly up in the air.

Then, as shown in FIG. 9, the slide frame 32
Since the frame 19 continues its downward movement even when it comes into contact with the object 44 to which it is attached, the slide frame 32 elastically begins to rise relative to the frame 19 as shown in FIG. In this process, the pin 36 is pushed up by the locking hole 37, and the rotation frame 23 is rotated counterclockwise about the roller 24.
The rotating frame 23 is assisted by the force of the spring 38 and rotates smoothly. By this operation, the label gripping roller 30 attached to the rotating frame 23 is moved to the fulcrum shaft 24 located at the center of the roller 24.
2, the label 45 is deviated from directly below the roller 24 to the side while the label 45 is being held between the roller 24 and the roller 24. As a result, the support point of the label 45 moves laterally, so that the label 45 is tilted downward from the horizontal position. Then, as the frame 19 moves downward, one side edge of the label 45 first comes into contact with the object 44 to which it is attached, and as the frame 19 continues to descend, it is affixed to the object 44 to which it is attached.

Then, as shown in FIG.
When the label 45 further descends, the roller 24 presses the label 45 against the object 44 to which it is attached, thereby firmly attaching the label 45. At this time, the slide frame 32 reaches its highest position relative to the frame 19, and the permanent magnet 41 switches the reed switch 42 to turn off the current to the solenoid 25. This results in
The label gripping roller 30 is retracted to the side of the roller 24.

In this way, the label pasting process is completed, and the motor 9 is reversed to move the arm 12 to the label issuing port 4.
Repeat the action of rotating it toward position 3. Due to this movement, the frame 19 separates from the object 44 to which it is attached, but with this movement, the slide frame 32
is returned downward relative to the frame 19 by the force of the spring 40, and the pin 36 is inserted into the engagement hole 37.
Push downward to rotate the rotating frame 23 clockwise. Therefore, the label gripping roller 30 returns to a position directly below the roller 24.

Note that the idler 20 prevents the belt 14 from loosening, but if the idler 18 cannot fully adjust the belt 14, the split arms 15 and 1
6 may be adjusted in position in the longitudinal direction. Furthermore, even if the frame 19 descends in a vertical position but is slightly bent with respect to the vertical line, or the upper surface of the object 44 to which it is attached is inclined as shown in FIG. fits well on the upper surface of the object 44 to which it is attached.

Effects of the Invention As described above, the present invention includes a frame that reciprocates between a label issuing position and a label pasting position in a substantially vertical posture, a fulcrum shaft for holding a roller is attached to this frame, and a fulcrum shaft for holding a roller is attached to the frame. a rotating frame that rotates about the fulcrum shaft is attached to the rotating frame, and an electromagnetic driving body and a label gripping roller that is connected to the electromagnetic driving body and moves toward and away from the lower outer periphery of the roller are attached to the rotating frame; an actuating body that is constantly biased downward and projects downward from the frame is attached to the frame so as to be vertically movable;
This actuating body and the rotating frame are connected to each other by a horizontally elongated engagement hole and a pin that engages with the engagement hole at a position offset from the fulcrum axis, so that at the label issuing position, Labels issued in a horizontal state are held in that position by the roller and the label gripping roller, and at the label pasting position, the rotating frame rotates around the fulcrum shaft that holds the rollers, so that the label can be removed from one side edge of the label. It is affixed to the object to be affixed, and as a result, the affixing position is stable and there is no risk of wrinkles.Furthermore, since the roller presses the top surface of the label, the label affixing state is also stable. Since the rotation of the frame is connected to the actuating body by a horizontally elongated engagement hole and a pin that engages with this engagement hole, the actuating body can be simply engaged and disengaged from the object to be affixed when the frame moves up and down. It has the effect of being able to perform.

[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 an enlarged side view showing the arm rotation mechanism, Figure 4 is an enlarged horizontal sectional view showing the arm rotation mechanism, and Figure 5 is an enlarged view of the main parts. FIG. 6 is an enlarged longitudinal sectional front view of the A-A line section in FIG. FIG. 12 is an enlarged side view showing the final step of the label pasting operation. 19... Frame, 22... Fulcrum shaft, 23...
Rotating frame, 24... Roller, 25... Electromagnetic driving body, 30... Label gripping roller, 32... Operating body, 36... Pin, 37... Engagement hole, 44... Object to be pasted, 45... …label.

Claims (1)

[Claims] 1. A frame is provided that reciprocates in a substantially vertical position between a label issuing position and a label pasting position,
A fulcrum shaft that holds the roller is attached to this frame, a rotating frame that rotates about the fulcrum shaft is attached to the frame, and an electromagnetic drive body is connected to the electromagnetic drive body and an electromagnetic drive body is connected to the rotation frame to support the roller. A label gripping roller that approaches and separates from the outer periphery of the lower side is attached, and an actuating body that is constantly biased downward and protrudes downward from the frame is attached to the frame so as to be movable up and down, and the actuating body and the rotating frame are connected to each other. A label pasting device, characterized in that the two are connected by a horizontally elongated engagement hole and a pin that engages with the engagement hole at a position offset from the fulcrum axis.