JPH0577823A - Vessel-rotary position controller of vessel treatment machine - Google Patents

Abstract

PURPOSE:To realize various treatments of vessels such as label sticking or the like with a few processes, by controlling the rotation of a vessel receiving base by an electric means without use of a mechanical cam structure. CONSTITUTION:This controller is provided with motors 29a-29h causing vessel receiving base 22a-22h to rotate, a rotation start instruction means 37 transmitting a rotate signal when the vessel receive base reaches vessel treatment positions B2, B3, B4, rotation angle setters 41a-41c setting data according to the rotation angle of the vessel receiving base, and a controller 40 regulating the motors in accordance with the respective output of the rotation start instruction means and the setter. This controller 40 regulates the vessel receiving bases 22a-22h to rotate as much as the rotate angle according to the preset data in the setters 41a-41h by the revolution start signal from the rotation start instruction means 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container processing machine, such as a labeling machine, for rotating a container having a container pedestal on a rotary table and performing processing such as label sticking and label spraying on the container. More specifically, it relates to a container rotation position control device for a container processing machine.

[0002]

2. Description of the Related Art In this type of labeling machine, a container pedestal on a rotary table is rotated about a certain angle to label a container at a predetermined position. Conventionally,
The rotation position of the container pedestal is controlled by engaging a cam follower pivotally supported by an arm for rotating the container pedestal with a grooved cam fixed below the rotary table. The control of the rotation position is not uniform depending on the length of the label, the sticking position, or the shape of the container.
Therefore, when a plurality of types of labels are attached to a certain container by a single labeling machine, or when a certain label is attached to a plurality of types of containers, it is necessary to replace with a groove cam suitable for each mode. There is.

Since this cam replacement work is complicated, a labeling machine has been proposed in which a plurality of cam grooves are formed in the cam plate so that they can be used for different kinds of containers, and these cam grooves are switched and used. It is (Japanese Patent Publication No. 57-23
623). However, in the above labeling machine, there is a limit in the number of cam grooves that can be formed in the cam plate, and there is a problem that it cannot be used for various containers. To solve this point, a rotation mechanism that allows the cam plate to rotate relative to the base when the cam plate is released is provided between the base and the cam plate, and the cam plate can be separated and assembled. A cam device for a container processing machine constituted by a plurality of plate members is disclosed (Japanese Patent Publication No. 3-1.
1980).

[0004]

Although the above-mentioned cam device can be applied to all kinds of containers and has an advantage that the troublesome work of the cam replacement can be reduced, the man-hour required for the cam replacement is still small, and the cam plate is not required. As the number of types increases, there is a problem that inventory management is not easy.

An object of the present invention is to control various rotation amounts of a container cradle by an electric means without using a mechanical cam mechanism, thereby facilitating various container processing such as labeling with a small number of steps. Another object of the present invention is to provide a container rotation position control device for a container processing machine that can be realized.

[0006]

[Means for Solving the Problems] As shown in FIG.
Light indicates container pick-up position A and container processing position B₁, B₂，
B ₃, B_FourRotary table that circulates sequentially between the container and the container discharge position C
And a table provided on the rotary table 14 so as to be rotatable.
Container holder 22 and one container 11 at container collection position A
To the container holders 22a to 22h on the turntable 14.
Container supply means 23, 24 for supplying and container processing position B₁，
B₂, B₃, B_FourProcessing container 1 by 1
Processing by means 16, 17, 18, 19 and container discharge position C
The container 11 on the rotary table 14
and container discharging means 26 for discharging from a to 22h one by one.
It is an improvement of the container processing machine provided. Its characteristic structure is
As shown in FIGS. 1 and 4, the container holders 22a to 22h are
Motors 29a to 29h for rotating and container holder 22a
~ 22h is container processing position B₂, B₃, B_FourWhen it reaches
Rotation start command means 37 for sending a start signal, and a container cradle
22a to 22h self setting data according to the rotation angle
The rotation angle setting devices 41a to 41c, the rotation start command means 37, and
And the motor 29 based on the outputs of the setters 41a to 41c.
and a controller 40 for controlling a to 29h,
The controller 40 rotates from the rotation start command means 37.
The data set in the setters 41a to 41c by the start signal
The container holders 22a to 22h are rotated by the rotation angle corresponding to the
It is about controlling to turn.

[0007]

The container receiving means 22 is provided by the container supplying means 23 and 24.
When the containers 11 placed on a to 22h arrive at the predetermined positions Q, R, and S, the rotation start command means 37 issues a rotation start signal, and the controller 40 inputs the signals and simultaneously rotates the rotation angle setters 41a to 41c. to rotate a preset rotation angle amount corresponding container receiving table 22a to 22h, thereby the container processing position B _2, B _3, B ₄ one at a time container 11 is processed.

Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 2 and 3, in this example, the container processing machine is a labeling machine 10, and as shown in FIGS. 5 and 6, a large label 12 is placed at a high position on the front surface of the container 11.
Is attached, and a small label 13 smaller than the large label 12 is attached to a low position on the rear surface of the container 11. The labeling machine 10 includes a rotary table 14 that revolves around a fixed shaft 14a, two vacuum drums 16 and 18, and two sprinklers 17 and 19. Vacuum drum 16
Reference numerals 18 and 18 respectively suck the labels with glue by air suction holes (not shown) by negative pressure, and the spraying tools 17 and 19 respectively apply the labels stuck by the brush. A conveyor 21 for transferring the container 11 is provided near the turntable 14. The turntable 14 sequentially circulates the container take-up position A, the container processing positions B ₁ , B ₂ , B ₃ , B ₄ and the container discharge position C, around which eight container holders 22 a, in this example, are provided. 22b, 22c, 22d, 22
e, 22f, 22g and 22h are provided at equal intervals so as to be rotatable. A screw 23 and a supply star wheel 24 that rotates in synchronization with the screw 23 and supplies the containers 11 to the turntable 14 one by one are provided near the container take-up position A, and near the container discharge position C. Is provided with a discharge star wheel 26 for discharging the containers 11 one by one. 27 and 28 are star wheel guides. In this example, the large label 12 is stuck at the position B ₁ by the vacuum drum 16, the large label 12 stuck at the position B ₂ is stroked by the stroking tool 17, and the small label 13 is changed at the position B ₃ by changing the sticking position of the container. Is stuck by the vacuum drum 18, and the small label 13 is stroked by the stroking tool 19 at the position B ₄ .

As shown in FIGS. 1 to 4, stepping motors 29a, 29b, 29c, 29d, 29e, 29f, and 29f are provided below the eight container receiving bases 22a to 22h, respectively.
29g and 29h are provided, and a chuck 31 is provided above them. The chuck 31 is lowered by a cam mechanism (not shown) from the container take-up position A to immediately before the container discharge position C and holds the container 11 together with the pedestals 22a to 22h. The table 14 is provided on the lower surface of the rotary table 14.
A gear 33 that rotates integrally with is fixed via a boss 34. A gear 35 having the same diameter and the same number of teeth as the gear 33 meshes with the gear 33. An encoder 36 is attached to the shaft of the gear 35, and the gear 35 and the encoder 36 are rotatably supported by a bracket 38 fixed to a base 39. As a result, the encoder 36 becomes 1 when the rotary table 14 makes one rotation.
It is configured to rotate, for example, to output a code “1” at a rotation angle of 1 degree with respect to a predetermined reference position and to output a code “359” at a rotation angle of 359 degrees. The output of this encoder 36 is connected to an electronic cam circuit 37. This circuit 37 is provided with as many switching circuits as the number obtained by multiplying the number of container pedestals on the rotary table by the number of locations where the containers are rotated and processed. In this example, 24 switching circuits 37a-3
7x, and 3 switching circuits are assigned to each stepping motor. That is, the switching circuits 37a, 37b and 37c are connected to the container receiving base 22a (motor 29a), the switching circuits 37d, 37e and 37f are connected to the container receiving base 22b (motor 29b), and so on. Switching circuits 37v, 37w and 37x are assigned to 29h).
When the container pedestal 22a arrives at the positions indicated by the symbols Q, R, and S in FIG. 2, the switching circuits 37a, 37b, and 37c.
However, similarly, when the container pedestal 22b arrives, the switching circuits 37d, 37e and 37f are each turned on. Specifically, for example, when the codes "0" to "10" are input from the encoder 36, the switching circuit 37a
Is turned on, and when the codes "50" to "60" are input, the switching circuit 37b is turned on and the codes "100" to "11" are input.
When 0 "is input, the switching circuit 37c is turned on, when the codes" 45 "to" 55 "are input, the switching circuit 37d is turned on, and when the codes" 95 "to" 105 "are input, the switching circuit 37e is turned on. , Code "145"
The switching circuit 37f is set to be turned on when ~ 155 is input. Hereinafter, similarly, the timing at which the switching circuits 37g to 37x are turned on is set.

Switching circuit 3 of electronic cam circuit 37
The outputs of 7a to 37x are connected to the input interface 40a of the controller 40 including a microcomputer together with the outputs of the three rotation angle setters 41a, 41b and 41c for setting the data according to the rotation angle of the container 11. Rotation angle setting unit 41a~41c consists DIP switches in this example, by setting the four-digit number, the rotation angle at the position B ₂ .about.B ₄ is determined. Specifically, when the value "1000" is set, the container pedestal makes one rotation, and when the value "500" is set, it makes a half rotation. The interface 40a is connected to the CPU 40b, and the memory 40c is connected to the CPU 40b. The memory 40c stores the data set by the setters 41a to 41c. The output of the CPU 40b is connected to the stepping motors 29a to 29h via the output interface 40d.

The operation of the labeling machine 10 having such a configuration will be described. In advance, the switching circuits 37a to 37x of the electronic cam circuit 37 are set to be turned on when the container pedestals 22a to 22h arrive at the positions indicated by the symbols Q to S, and the rotation angle setting devices 41a to 41c are switched to the switching circuits. The rotation angle of the container pedestal when 37a to 37x are turned on is set. The container 11 transferred by the conveyor 21 advances according to the path shown by the arrow in FIG. 3, and the interval is first adjusted by the screw 23,
It is guided by the supply star wheel 24 and the star wheel guide 27, and transferred to, for example, the container pedestal 22a of the rotary table 14 that rotates in synchronization. When transferred to the cradle 22a, the container 11 is gripped by the chuck 31 and the cradle 22a, and the large label 1 is transferred by the vacuum drum 16 rolling.
Revolves without rotating until 2 is attached to the container peripheral surface (end point of position B ₁ ).

[0012] Then the container receiving table 22a comes to the position shown by reference numeral Q (starting position B _2), the encoder 36 outputs the code "0", the switching circuit 37a is turned on. When this on signal is input, the controller 40 rotates the stepping motor 29a by the rotation angle stored in the memory 40c to rotate the container pedestal 22a. As a result, the attached large label 12 is brought into close contact with the container 11 at the position B ₂ by the spraying tool 17. Next, the container cradle 2
If 2a arrives at the position shown by reference numeral R (start position B _3), the encoder 36 outputs the code "50", the switching circuit 37b is turned on. Similarly, the controller 40 rotates the stepping motor 29a to rotate the container pedestal 22a.
Is rotated, and the position of the container 11 is changed so that the portion where the large label 12 is not attached faces the vacuum drum 18. Small label 13 by overwhelming vacuum drum 18
Is attached to the peripheral surface of the container. Continuing container 11 where the small label 13 is affixed to a position indicated by reference numeral S (start position B ₄₎ and arrives, the encoder 36 outputs the code "100",
The switching circuit 37c is turned on. Controller 4
Similarly, 0 rotates the stepping motor 29a to rotate the container receiving table 22a. As a result, the attached small label 13 is brought into close contact with the container 11 by the spraying tool 19 at the position B ₄ . Further, at position C, it is guided by the discharge star wheel 26 and the star wheel guide 28, and is transferred from the rotary table 14 to the conveyor 21. As a result, as shown in FIGS. 5 and 6, the large label 12 is attached to the container 11 at a high position on the front surface, and the small label 13 is attached to a low position on the rear surface.

In the above example, the case where there are four container processing positions has been described, but this position may be one or two or more other positions. In the above example, the electronic cam circuit that turns on and off based on the signal from the encoder is used as the rotation start command means, but the present invention is not limited to this. Further, although an example in which a label pasted with a vacuum drum is attached is shown, a pressure-sensitive label may be used. In this case, instead of rolling the vacuum drum into the container, the head of the tack labeler is brought into direct contact with the container. Further, although the container pedestal is rotated by the stepping motor, a servo motor may be used.

[0014]

As described above, according to the present invention, the rotation amount of the container pedestal is controlled by electrical means without using a mechanical cam mechanism for rotating the container. Various container treatments such as labeling can be easily realized.

[Brief description of drawings]

FIG. 1 is an electric circuit configuration diagram of a container rotation position control device according to an embodiment of the present invention.

FIG. 2 is a plan view of a main part of the container processing machine according to the embodiment of the present invention.

FIG. 3 is a plan view showing the whole.

FIG. 4 is a side view of the container processing machine.

FIG. 5 is a perspective view of a container to which a label is attached.

FIG. 6 is a plan view of the container.

[Explanation of symbols]

A container take-up position B _{1 to} B ₄ container processing position C container discharge position 10 labeling machine (container processing machine) 11 container 12, 13 label 14 rotary table 16, 18 vacuum drum (container processing means) 17, 19 sprinkler (Container processing means) 22a to 22h Container cradle 23 Screw (container supply means) 24 Supply star wheel (container supply means) 26 Discharge star wheel (container discharge means) 29a to 29h Stepping motor 37 Electronic cam circuit (rotation start command) Means) 40 controller 41a-41c rotation angle setting device

Claims (2)

[Claims] 1. Container pick-up position (A) and container processing position
_{(B 1, B 2, B} 3, B 4) and the container unloading position (C) and sequentially and circulating rotary table (14), the rotary table (14) capable of rotating provided container cradle (22 ), And container supply means (23, 24) for supplying the containers (11) one at a time to the container receiving position (A) to the container cradle (22a to 22h) on the rotary table (14), Container processing means (16, 17, 18, 19) for processing one container (11) at each container processing position (B ₁ , B ₂ , B ₃ , B ₄ ) and processing at the container discharge position (C) A container processing machine provided with container discharging means (26) for discharging the stored containers (11) one by one from the container receiving bases (22a to 22h) on the rotary table (14), the container receiving base (22a Motors (29a-29)
and h), the container cradle (22a to 22h) is the vessel processing position (B _2, B _3, B
₄ ), the rotation start command means (3
7), a rotation angle setting device (41a to 41c) for setting data according to the rotation angle of the container cradle (22a to 22h), the rotation start command means (37) and the setting device (41a to 41c) ) And a controller (40) for controlling the motors (29a to 29h) based on each output, the controller (40), the controller (40) by the rotation start signal from the rotation start command means (37). (41a ~ 41c) the container cradle (22a ~
22h) is controlled so as to rotate on its axis, and is a container rotation position control device for a container processing machine. 2. The container discharge position (A) to the container discharge position
A plurality of containers processing position until reaching the _{(C) (B 1, B} 2, B 3, B 4)
There is set, the plurality of containers processing position vessel processing means in response to (B ₁ .about.B ₄₎ (16 to 19), rotation start command means (37) and the rotation angle setting unit (41a to 41c) are respectively The container rotation position control device of the container processing machine according to claim 1.