JP2589091B2 - Labeling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention reverses a label-attached body transported in one direction, peels off the label on the belt-like body, and conveys the label by a conveyor. The present invention relates to a label sticking device that is stuck on the upper surface of a container.

(Prior Art) A conventional label applying apparatus of this type is configured such that a label-attached body O delivered from a delivery roll A is supported by a label support B as shown in FIG. 3 and FIG. , The label-attached body O is turned over at the tip of the label support B, the label on the label-attached body R is peeled off, and the container sent by the conveyor C disposed immediately below the container. The label was stuck on the upper surface of S.

The label-attached body O is a label feed motor D
The paper is sent from the delivery roll A in one direction (delivery direction) by a label delivery roller E that is driven to rotate in the above manner, and is taken up by a take-up roll F.

In order to drive the label feed motor D and the conveyor drive motor G for driving the conveyor C in synchronism, the angular motors are separately adjusted in the number of revolutions, whereby the label-attached strip O and the container on the conveyor are rotated. The feed speed was adjusted so as to be synchronized. In the figure, J
Is an amplifier for controlling the label feed motor D.

As shown in FIG. 4, a sensor H for label detection is arranged on the label support B at a position closer to the feed roll A side from the peeling position of the label R. The label R on the body O is detected just before the peeling position, and the label feed motor D is intermittently driven, and the conveyor driving motor G is intermittently driven to detect the label R on the upper surface of the container S on the conveyor C. The label R was stuck so that the center of the label R did not deviate from the center of the container.

(Problems to be Solved by the Invention) However, in the conventional labeling apparatus configured as described above, the feeding speed of the label-like band O and the container S
To adjust the transport speed of the
Feed motor D via conveyor and conveyor drive motor G
The adjustment of the rotation speed must be performed separately, and this adjustment is very troublesome.

Further, as described above, since the sensor H for detecting the label R is disposed at a position closer to the feed roll A side from the label peeling position and is located at a position separated from the label peeling position by a plurality of labels, this sensor H Even if the label R immediately below is detected, the gap h... Between each label R... From the label R immediately below the sensor H to the label R at the peeling position may not be uniform. There is a problem that an error occurs in the intermittent feeding by the intermittent synchronizing drive of the label feeding motor D and the conveyor driving motor G, so that the label R is stuck on the container S in a shifted state without success.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and is capable of performing synchronous rotation drive by controlling a drive motor of a conveyor that conveys containers and a label feed motor that feeds a label-attached body in a linked manner. It is a main object of the present invention to provide a labeling apparatus which is easy to perform, and can prevent the label from being shifted from the center of the container when the label is attached to the upper surface of the container.

(Means for Solving the Problems) In order to achieve the above object, the present invention is to reverse a label-attached belt transported in one direction, peel off a label on the belt, and transfer the label to a conveyor. In a labeling apparatus that is to be attached to the upper surface of the container to be conveyed, the label is disposed at a position where the label at the tip of the label-attached body is peeled off, and detects the label and the container immediately below the label feeding motor. A sensor for intermittently controlling the conveyor drive motor, an encoder for detecting the conveyor speed of the conveyor, and a detection signal from the encoder determine a transfer speed of a driving unit for transferring the label-attached body in the feeding direction. An amplifier that synchronizes with the conveyor speed is provided.

(Operation) According to the above configuration, the conveyor detects the transport speed of the conveyor by the encoder, the amplifier receives the detection signal, and the amplifier transfers the label-attached body in the sending direction by the amplifier. The speed is controlled so as to be synchronized with the conveying speed of the conveyor. Further, the label on the label-attached body is detected at the peeling position by the sensor, and a container on the conveyor is detected immediately below the label-on-contact body, and the container on the conveyor and the label-attached body are intermittently synchronized. Then, the label on the label-attached body is stuck on the upper surface of the container without causing a displacement of the label with respect to the center of the container.

(Example) Hereinafter, an example in which the labeling apparatus according to the present invention is shown in the drawings will be described.

In this apparatus, as shown in FIG. 1, a label support 2 is disposed below a delivery roll 1 for delivering a label-attached body O, and a label feed motor 3 is provided behind the label support 2.
A label feed roller 4 that is rotationally driven by a driving means is disposed, and a label winding roller 5 is disposed above the label feed roller 4.

Then, the label-attached body O sent out by the rotation of the label feed roller 4 from the feed roll 1 is supported by the label support 2 via a plurality of guide rollers 6, 6 and fed forward, and the label The label R, which is turned over at the front end of the support 2 and is affixed to the surface, is peeled off and sent to the rear side, and is wound around the label winding roll 5 via the guide rollers 6 and 6 and the label feed roller 4. It is made to be taken.

On the other hand, a conveyor 8 conveyed by a drive of a drive motor 7 via a belt 7a is disposed immediately below the label support 2, and an encoder 10 is provided on a roller 9 on the opposite side of the conveyor 8 from the drive motor 7. The roller 11 is slid in contact with the conveyor 8 via the arm rod 16 by the spring 12 while being urged by the conveyor 8. The encoder 10 of the roller 11 is connected to an amplifier 13, and the amplifier 13 is further connected to the label feed motor 4. The transport speed of the conveyor 8 driven by the drive motor 7 is controlled by the roller 11. The detection signal is transmitted to the amplifier 13 through the encoder 10, and the rotational drive speed of the label feed motor 4, that is, the feed speed of the label-attached body O is controlled by the amplifier 13, and the signal is conveyed by the conveyor 8. The conveying speed of the container S on the conveyor 8 and the feeding speed of the label-attached body O are synchronized.

Also, as shown in FIG. 2, the inversion position of the label-attached body O at the leading end of the label support 2, that is, the label band O
A sensor for detecting the label R at the peeling position of the label R above
14 is provided, and a sensor 15 is also provided in the transport area of the container S immediately below. The sensor 14 for detecting the label R may be provided at a position for detecting the leading end of the label R at the peeling position, or may be provided at a position for detecting the rear end of the label R.

Then, the sensors 14 and 15 detect the label R on the label attached body O at the label peeling position and the container S immediately below the label R, respectively.
Then, the conveyor driving motor 7 is intermittently synchronized, and the label-attached body O and the container S on the conveyor 8 are synchronously transported and fed.

By doing so, the roller 11 is
By controlling the label feed motor 4 by the amplifier 13 based on the detection signal, the transport speed of the container on the conveyor 8 and the feed speed of the label-like body O are detected. Since the tuning is performed, it is not necessary to tune the motors 4 and 7 by separate operations, and the motors 4 and 7 can be tuned by the linked control, so that the control can be easily performed.

In addition, a sensor is provided at the label peeling position of the label attached belt O.
Since the label R is detected by 14, this label detection is reliably performed without deviation, the intermittent feeding of the container S and the label-attached body O is performed accurately in synchronization, and the label is moved from the center of the container S to the center. The label R can be stuck on the upper surface of the container S without shifting the center of S.

Although it is preferable to use a reflective photoelectric tube or a transmissive photoelectric tube as the sensor 14, the present invention is not limited to this, and other types of sensors may be used.

(Effects of the Invention) Since the present invention has the above-described configuration and functions, it detects the conveyor speed by the encoder, receives the detection signal by the amplifier, and uses the amplifier to detect the label. Since the transfer speed of the driving means for transferring the attached body in the feed-out direction is controlled so as to be synchronized with the conveying speed of the conveyor, the linked control is easy to perform, and furthermore, the label on the attached body with a sensor is easily controlled. And at the peeling position, the container on the conveyor can be detected immediately below it and the container on the conveyor and the label-like body can be intermittently synchronized and transported and fed. It is possible to exert an effect such that the label on the label-attached body can be attached without causing the label to be displaced from the center of the container.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of an embodiment of a labeling apparatus according to the present invention, FIG. 2 is a schematic enlarged side view of a main part thereof,
FIG. 3 is a schematic view showing a configuration of a conventional label applying apparatus, and FIG. 4 is a schematic enlarged side view of a label peeling portion. O: Labeled body, R: Label, S: Container, 3: Driving means (label feed motor), 8: Conveyor, 10: Encoder, 13: Amplifier, 14, 15: Sensor .

Claims (1)

(57) [Claims] 1. A label sticking apparatus for reversing a label-attached belt transported in one direction, peeling a label on the belt-like substrate, and affixing the label to an upper surface of a container conveyed by a conveyor. A sensor for detecting a label and a container immediately below the label and controlling a label feed motor and a conveyor drive motor intermittently and synchronously, the sensor being arranged at a position where the label at the tip of the label-attached body is peeled off; An encoder for detecting the transport speed of the conveyor, and an amplifier for synchronizing the transport speed of the driving means for transporting the label-attached body in the feed-out direction with the transport speed of the conveyor based on a detection signal of the encoder. Labeling device.