JP6663367B2 - Rotary transfer device for labeling machine - Google Patents

Description

  The present invention relates to a rotary transfer device of a labeling machine, which can perform positioning with a single rotary transfer device for a plurality of types of containers having different bottom cross-sectional shapes and bottom structures.

Rotary labeling machines with a rotary conveyor are well known.
The rotary transport device includes a plurality of container holding devices capable of holding and releasing the upper and lower portions of the container.
The container holding device includes a mounting table that can rotate around a vertical rotation axis, and a holding tool that can be moved up and down above the mounting table, and holds the mounting table having the container bottom and the container head. The container can be held and released by the presser.
The container held by the container holding device is conveyed while rotating (revolving) around the vertical main rotation axis of the rotary conveyance device, and the starting end of one or more labels is affixed to a predetermined position on the container peripheral surface during the conveyance. After that, a label is wound around the peripheral surface of the container that has been forcibly rotated (rotated) (Patent Documents 1 and 2).
Recently, various containers have been proposed, such as a container having a flat or polygonal cross section at the bottom of the container or a container having a positioning recess formed at a position off the center of the bottom of the container.

In order to accurately apply a label to a specific position on the peripheral surface of this type of container, it is necessary to align the container being transported in a proper direction before labeling.
For example, in the case where a concave portion for positioning is formed on the bottom surface of a container having a circular cross-sectional shape at the bottom of the container, a direction restriction that can be fitted to the concave portion on the bottom surface of the container as a mounting table constituting the container holding device. Using a mounting table equipped with pins, only the container is forcibly rotated during transport, and the concave portion on the bottom surface of the container is fitted to the direction regulating pin to align the container in the proper direction.
Further, in the case of a container that does not have a concave portion for positioning on the bottom surface of the container and the cross-sectional shape of the container bottom is flat or polygonal, the mounting surface has a recess having substantially the same shape as the bottom of the container. The container is aligned in a regular direction by using a mounting table having a mounting hole and fitting the bottom of the container into the mounting hole of the mounting table during transportation.

JP-A-11-171150 JP 2006-528119 A

The conventional rotary transfer device has the following problems.
<1> Since the mounting table constituting the container holding device is manufactured as a dedicated device adapted to the container, it cannot cope with different types of containers having different cross-sectional shapes and bottom structures at the container bottom.
<2> As a method for supporting containers having different bottom cross-sectional shapes and bottom structures, a method of replacing the mounting table with a container corresponding to a different type of container is conceivable. However, designing a container holding device capable of supporting various types of containers. But technically difficult.
<3> Even if a mounting table that can support individual containers can be designed, even if only one mounting table is replaced, a large number of mounting bolts can be attached and detached, and many components can be disassembled and disassembled and assembled. And it takes a great deal of time and effort to replace all the mounting tables provided on the rotary transfer device.
<4> During the work of replacing the mounting table, not only the operation of the entire production line but also the label sticking line must be interrupted, and the waiting time until the production line is restarted becomes extremely long.
<5> In the case of a container having a circular cross-sectional shape at the bottom of the container and having a concave portion on the bottom surface, a dimensional difference is provided between the concave portion on the bottom surface of the container and the direction regulating pin for smooth fitting. As a result, a gap is formed between the recess and the direction regulating pin when fitted.
Due to this gap, the container being conveyed is perturbed and the direction regulation varies.
For example, when two labels are stuck at equal intervals on the front and rear surfaces of the body of a container with a concave portion, or when a label is stuck at a specific position on a flat body of a container, the direction regulation of the container varies. In the former case, the gap between the two labels becomes unequal, and in the latter case, there arises a problem that the labeling accuracy is lowered.
<6> In order to solve the above problem, if the dimensional difference between the recess on the bottom surface of the container and the direction regulating pin is reduced, it becomes difficult to fit the recess and the direction regulating pin, and the performance of the direction regulation of the container is reduced. Be impaired.

The present invention has been made in view of the above points, and an object of the present invention is to provide at least one of the following rotary transfer devices for a labeling machine.
<1> The rotary transfer device can be changed to a rotary transfer device corresponding to a plurality of types of containers having different bottom cross-sectional shapes and bottom structures simply by replacing a part of the mounting table without replacing the entire mounting table.
<2> The time required for changing all the mounting tables provided in the rotary transfer device can be significantly reduced by reducing the time and labor for replacing parts per mounting table.
<3> To significantly reduce the waiting time until restarting the production line.
<4> Labeling accuracy is significantly improved.

The present invention provides a mounting table for mounting a bottom portion of a container, which is rotatably disposed around a vertical rotation axis on a peripheral portion of a rotating plate that rotates in one direction about a vertical main rotation axis, Rotary transfer of a labeling machine capable of transferring a plurality of types of containers having different bottom cross-sectional shapes and bottom structures by means of a presser which is arranged rotatably and rotatably on the coaxial line of the mounting table and rotatably and presses the head of the container. An apparatus, wherein a fixed wrapping fixed belt is arranged to surround the plurality of mounting tables so as to circumscribe the side surfaces of the plurality of mounting tables, and the mounting table is pivotally supported by a lower rotating plate, and a servo is provided. A rotating shaft that is controlled to be rotated by a motor, a large-diameter shaft portion integrally formed on an upper portion of the rotary shaft, and a receiving hole formed in an upper shaft center; It receives a rotational force by circumscribing the wrapping fixed belt, and And a different diameter outer cylinder rotatable with, removably have been interposed between the peripheral surface of the enlarged diameter shaft portion and the different-diameter outer tube, different diameter outer tube and the integral is independent of the enlarged diameter shaft portion A rotating table, and a container accommodating opening formed in accordance with the cross-sectional shape of the bottom of the container so as to accommodate the bottom of the container, and having a different diameter so as to be able to rotate integrally with the outer cylinder having the different diameter. A holder ring detachably attached to an upper end of the outer cylinder, and an intermittent device having a slide-type pin attached to a part of the different-diameter outer cylinder and detachable from the enlarged-diameter shaft portion, The container is positioned by the mounting table for mounting the container on the mounting surface, and the holder ring that stores the bottom of the container in the container receiving port, and the revolving diameter around the main rotation axis is passed through the winding fixed belt. Rotational force is constantly applied to the outer cylinder, and the outer cylinder is expanded by sliding operation of the pin of the intermittent device. Between each other between the shaft portion and the different-diameter outer tube, and transmission of the rotational force by the servo motor, it can be switched and the transmission of the rotational force by the wrapping fixing belt.
In another embodiment of the present invention, the container is a container with a concave portion in which a positioning concave portion is formed at a position deviated from the center of the container bottom surface. The bottom of the recessed container is positioned by the protruding mounting table and the holder ring.
In another embodiment of the present invention, the holder ring is detachably attached to an upper end of the outer cylinder with a different diameter via a magnet.
In another embodiment of the present invention, the container is a container with a concave portion in which a positioning concave portion is formed at a position deviated from the center of the container bottom surface, and a pin provided with a direction regulating pin that can be fitted in the concave portion. The bottom of the container with the concave portion is positioned by the unit and the holder ring, and the pin unit is detachably accommodated in the accommodation hole of the enlarged diameter shaft portion.
In another embodiment of the present invention, the cross section at the bottom of the container with the concave portion has a circular shape.
In another embodiment of the present invention, the intermittent device is used to rotate the enlarged diameter shaft portion and the different diameter outer cylinder so that the holder ring integral with the different diameter outer cylinder can be rotated by utilizing the frictional resistance of the winding fixed belt. The connection between them is in the released state.
In another embodiment of the present invention, the container is a deformed container having no concave portion for positioning on the bottom surface, and the bottom cross-sectional shape of the container is non-circular, and the container ring is formed in a non-circular shape with a holder ring. The bottom of the deformable container is positioned by the placing table.
In another embodiment of the present invention, the sectional shape of the bottom of the deformable container has a flat shape or a polygonal shape.
In another embodiment of the present invention, when the container is a deformable container, the connection between the enlarged-diameter shaft portion and the different-diameter outer cylinder by the intermittent device so that rotation by the servomotor can be transmitted to the holder ring. It is in.

The present invention has the following effects.
<1> By simply replacing the mounting table and the holder ring, which are the components of the mounting table, without replacing the entire mounting table, it can be used for multiple types of containers with different bottom cross-sectional shapes and bottom structures. It can be modified to a corresponding rotary transport device.
<2> Since the time and labor required for replacing parts per mounting table can be reduced, the time required for modifying all the mounting tables provided in the rotary transfer device can be greatly reduced.
In particular, when the holder ring is attached to the different-diameter outer cylinder via a magnet, the holder ring can be attached and detached with one touch without using any tools.
<3> Since the work of modifying all the mounting tables can be shortened, the waiting time until the restart of the production line can be significantly reduced.
<4> In the case where the container is a container with a concave portion, even if a gap is formed between the concave portion on the bottom surface of the container and the direction regulating pin, it is possible to avoid the influence of the gap and eliminate the variation in the direction regulation of the container. The sticking accuracy is significantly improved.

Top view of a labeling machine equipped with a rotary transfer device It is explanatory drawing of the example of a several kind of container which can respond, (A) is a partial cross section of the bottom part of the container with a recessed part, (B) is a bottom view of the container with a recessed part, (C) is a bottom view of a deformed container. Sectional view of III-III in FIG. Exploded view of mounting table for container with recess Longitudinal sectional view of a mounting table for a container with a recess Enlarged sectional view of a mounting table for a container with a recess Enlarged view of the intermittent device FIGS. 7A and 7B are model diagrams of the direction regulating operation of the container with the concave portion, in which FIG. 7A is a model diagram before the direction of the container is regulated; FIG. Perspective view of mounting table for deformed container Longitudinal sectional view of the mounting table for the deformed container Partial plan view of a labeling machine for explaining a method of attaching a label to a deformable container

  Hereinafter, a labeling machine equipped with a rotary transfer device will be described with reference to the drawings.

<1> Outline of Labeling Machine The labeling machine illustrated in FIGS. 1 and 3 will be described. The labeling machine includes a rotary transport device 20 that revolves and transports the container 10 while rotating at least around a vertical main rotation shaft 21. A single or a plurality of sets of label supply means 30 are provided around the rotary transport device 20 and apply labels to the outer peripheral surface of the container 10.

A carry-in path 40 and a carry-out path 41 are provided around the rotary transfer device 20. The rotary transfer device 20 is moved from the carry-in path 40 through a carry-in star 42 and a fixed carry-in guide 43 provided at the end of the carry-in path 40. The container 10 is continuously supplied to the container and the labeling is completed from the rotary transport device 20 to the discharge path 41 through the discharge star 44 and the fixed discharge guide 45 provided at the start end of the discharge path 41. It is configured such that the containers 10 can be sequentially carried out.
The facing distance between the carry-in star 42 and the carry-in guide 43 and the facing distance between the carry-out star 44 and the carry-out guide 45 can be appropriately adjusted according to the size of the container 10.

<2> Container The rotary transport device 20 can apply a label corresponding to a plurality of types of containers 10 having different bottom sectional shapes and bottom structures. A plurality of types of containers 10 are illustrated in FIG.
The container 10 illustrated in FIGS. 2 (A) and 2 (B) has one or more concave portions 12 for positioning at a position deviated from the center of the bottom surface 11, and is a concave container 10 a having a circular bottom cross-sectional shape. is there.
The container 10 illustrated in FIG. 2 (C) is a deformable container 10b having no positioning concave portion on the bottom surface 11 and a non-circular bottom cross-sectional shape. The cross-sectional shape of the bottom of the deformable container 10b is not limited to a flat shape such as a substantially elliptical shape shown in the drawing, but may be a polygonal shape.
There is no particular limitation on the cross-sectional shape of the body of both containers 10a and 10b.

<3> Label Supply Means The label supply means 30 has a function of affixing the label supplied one by one to the outer peripheral surface of the container 10.
In this example, the label is pulled out together with the backing from a tag label roll in which the label is pasted on the tape-like backing in advance, and the backing is folded at an acute angle, and the label is peeled off and supplied. Here are some cases.

  The label supply means 30 may be a known single-sheet label supply means in which a large number of labels are accommodated in a holder, or a known technique in which a tape drawn from a roll tape is cut into a label size immediately before application and is applied through an application drum (not shown). Roll label supply means.

  Further, in this example, two sets of label supply means 30 are provided around the rotary transfer device 20 and labels are attached to two places on the outer peripheral surface of the container 10. However, the number of label supply means 30 provided is It is appropriately selected according to the number of labels to be attached.

<4> Rotary Transport Device Referring to FIGS. 1 and 3, the rotary transport device 20 rotates in one direction (counterclockwise in FIG. 1) in synchronization with each other about a vertical main rotation shaft 21. And a lower rotating plate 22 and an upper rotating plate 23.
A plurality of mounting tables 50 for mounting the bottom of the container 10 are mounted on the peripheral edge of the lower rotating plate 22 so as to be rotatable about a vertical rotation shaft 51.
A fixed wrapping fixed belt 25 that can be circumscribed on the outer peripheral surface of the plurality of mounting tables 50 is arranged between the plurality of mounting tables 50, and both ends of the wrapped fixed belt 25 are fixed to a stationary member.
A plurality of holding members 24 for holding the head of the container 10 are arranged on the peripheral portion of the upper rotating plate 23 so as to be able to move up and down and to rotate freely.

<5> Holding Tool The holding tool 24 located on the same line as the mounting table 50 rises when transferring the container 10, separates from the head of the container 10, descends when transporting the container 10, and lowers the head of the container 10. It can be moved up and down to hold it.
The lifting and lowering operation of the presser 24 can be performed by applying a known cam mechanism or the like.

<6> Mounting Table The mounting table 50 will be described with reference to FIGS.
The mounting table 50 has a plurality of types of containers 10 having different bottom cross-sectional shapes and bottom structures (the same as the container 10 a with the concave portion) by merely exchanging some of the components (the mounting table 60, the holder ring 70, and the pin unit 80). It is configured to correspond to the container 10b).

Referring to FIG. 5, the mounting table 50 is rotatably supported by the lower rotating plate 22 and is integrally formed on a rotating shaft 51 rotated by a servomotor M on the rotating shaft 51 and accommodated in the upper portion. A diameter-enlarging shaft portion 52 having a hole 52a formed therein, a cylindrical tube portion 65 that is externally mounted on the diameter-enlarging shaft portion 52 via a sliding bearing 58, and an externally arranged and disposed around the diameter-enlarging shaft portion 52, are wound around. A different-diameter outer cylinder 54 that is circumscribed to the fixed belt 25 and can rotate independently of the enlarged-diameter shaft section 52 by receiving a rotational force, and is attached to a part of the different-diameter outer cylinder 54 and An intermittent device 56 having a detachable slide-type pin, and a detachable interposition between the peripheral surface of the enlarged diameter shaft portion 52 and the outer peripheral surface of the different-diameter outer cylinder 54, which rotate integrally with the different-diameter outer cylinder 54. The apparatus includes a mounting table 60 and a holder ring 70 which is removably (exchangeably) mounted on an upper end of the outer cylinder 54 having a different diameter.
A sliding bearing 58 is interposed between the cylindrical portion 65 of the mounting table 60 and the different-diameter outer cylinder 54.

<6.1> Rotating shaft Each rotating shaft 51 is inserted into a support cylinder 55 erected on the lower rotating plate 22.
Each rotary shaft 51 is directly connected to a servomotor M as a drive mechanism, and can control the rotation at a precise rotation angle.

<6.2> Large-diameter shaft portion At the center of the upper portion of the large-diameter shaft portion 52, a receiving hole 52a having a polygonal, elliptical, or circular cross-sectional shape capable of storing the pin unit 80 is provided in a concave shape.
A pin hole 52c is formed vertically in the disc-shaped enlarged diameter portion 52b below the enlarged diameter shaft portion 52.

<6.3> Different-diameter outer cylinder The different-diameter outer cylinder 54 provided on the enlarged-diameter shaft portion 52 includes a small-diameter cylinder portion 54a positioned opposite to the rotating shaft 51 below the enlarged-diameter shaft portion 52, and a diameter-expanded. The large-diameter cylindrical portion 54b is located opposite to the side of the shaft portion 52, and the annular portion 54c connects between the two cylindrical portions 54a and 54b.
The different-diameter outer cylinder 54 is rotatably supported by the support cylinder 55 via a small-diameter cylindrical portion 54 a provided on the support cylinder 55.
On the outer peripheral surface of the large-diameter cylindrical portion 54b, an annular groove 54d that can circumscribe the winding fixed belt 25 is formed.

<6.4> Wrapping Fixed Belt The winding fixing belt 25 is provided so as to surround the plurality of mounting tables 50, and its belt surface contacts the annular groove 54 d on the outer peripheral surface of each of the different diameter outer cylinders 54. ing.

<6.5> Intermittent Device The intermittent device 56 transmits the torque transmitted by the servomotor M and the torque transmitted by the winding fixed belt 25 between the enlarged-diameter shaft 52 and the different-diameter outer cylinder 54. It is a device for switching.
Referring to FIG. 7, the interrupting device 56 that is mounted upward through the annular portion 54 c is a pin body that can be inserted into a pin hole 52 c formed in the enlarged diameter portion 52 b of the enlarged diameter shaft portion 52. There is provided a main body 56a screwed to the annular portion 54c, a button 56b extending below the main body 56a, and a pin 56c slidable upward of the main body 56a.
As the intermittent device 56, for example, a known knock-type index plunger or the like can be applied.
When the button 56b of the intermittent device 56 is pushed up, the pin 56c protrudes from above the main body 56a, and the protruding pin 56c is inserted into the pin hole 52c of the large-diameter shaft portion 52, so that the large-diameter shaft portion 52 and the different-diameter outer cylinder 54 Are connected to each other, so that the rotation of the rotary shaft 52 can be transmitted to the different-diameter outer cylinder 54.
When the button 56b of the intermittent device 56 is pulled down, the pin 56c is retracted into the main body 56a, so that the connection between the enlarged diameter shaft portion 52 and the different diameter outer cylinder 54 can be released.

<6.6> Rotation Mechanism of Different Diameter Outer Cylinder The different diameter outer cylinder 54 can be rotated by the following two rotation mechanisms.

<6.6.1> Rotation Mechanism of Different Diameter Outer Cylinder by Wrapping Fixed Belt One of the rotation mechanisms is a rotation fixed belt 25 wound around the annular groove 54d of the different diameter outer cylinder 54.
When the mounting table 50 revolves around the main rotating shaft 21, the frictional force generated between the winding fixed belt 25 and the different-diameter outer cylinder 54 of each mounting table 50 causes the different-diameter outer cylinder 54 and the different-diameter outer A rotational force is continuously applied to the mounting table 60 and the holder ring 70 connected to the cylinder 54.

<6.6.2> Rotating Mechanism of Different Diameter Outer Cylinder by Servo Motor Another rotating mechanism is a servo motor M through an intermittent device 56 attached to a part of the lower surface of the annular portion 54c of the different diameter outer cylinder 54. Is a rotation mechanism.
The rotational force of the enlarged diameter shaft portion 52 by the servo motor M can be transmitted to the holder ring 70 together with the different diameter outer cylinder 54 through the intermittent device 56.

<7> Mounting Table Explaining with reference to FIGS. 5 and 6, the mounting table 60 is a support member for supporting the bottom surface 11 of the container 10, and is provided around the enlarged diameter shaft portion 52 and the outer cylinder 54 of the different diameter. It has a tubular portion 65 interposed between the surfaces, and a table portion 61 integrally formed on the upper portion of the tubular portion 65.
The mounting table 60 can be attached to and detached from the enlarged diameter shaft portion 52 and the different diameter outer cylinder 54 with the holder ring 70 removed.

The cylindrical portion 65 interposed between the enlarged diameter shaft portion 52 and the different diameter outer cylinder 54 has a sliding bearing 66 attached to the inner peripheral surface thereof, and can rotate independently of the enlarged diameter shaft portion 52. .
The cylindrical portion 65 is configured to be slidable vertically with respect to the different-diameter outer cylinder 54 and to rotate integrally with the different-diameter outer cylinder 54.
In this example, the rotational force of the different diameter outer cylinder 54 is reduced by fitting a vertical groove 67 formed on the outer peripheral surface of the cylindrical portion 65 and a guide projection 54 e projecting from the inner peripheral surface of the different diameter outer cylinder 54. The receiving table 60 is rotatable.
A spring 59 is disposed between the annular spring receiving cylinder 58 disposed below the cylindrical portion 65 and the bottom surface of the cylindrical portion 65, and the mounting table 60 can move up and down along the enlarged diameter shaft portion 52. It is.

  In the present invention, the placement table 60 is selectively used as follows depending on the difference between the bottom cross-sectional shape and the bottom structure of the container 10.

<7.1> Mounting Table and Pin Unit for Container with Concave Portion When the container 10 is the container 10a with a concave portion (hereinafter, referred to as “container 10a”) shown in FIGS. The mounting table 60a and the pin unit 80 are used together.

[Placement table]
More specifically, referring to FIG. 6, the table portion 61 of the mounting table 60 a has a substantially crank-shaped vertical cross-sectional shape, and has an annular mounting surface on which the bottom of the container 10 can be mounted on the uppermost surface thereof. 62 are formed.
A circular exposure port 63 is formed at the center of the table 61.

[Pin unit]
The pin unit 80 includes a detachable unit main body 81 housed in the accommodating hole 52 a of the enlarged-diameter shaft portion 52, and one or more direction regulating pins 82 projecting upward at a position offset from the center of the upper surface of the unit main body 81. have.
The pin unit 80 can be fixed to or removed from the enlarged-diameter shaft 52 by attaching and detaching the fixing bolt 84.

The direction regulating pin 82 and the mounting surface 62 of the mounting table 60a are formed in a positional relationship that does not interfere with each other. Further, the formation position and the number of the direction control pins 82 are formed corresponding to the concave portions 12 of the container 10a.
The direction regulating pin 82 may be vertically erected by a spring 83 contracted inside the unit main body 81, or the direction regulating pin 82 may be vertically immovably erected.

<7.2> Mounting Table for Deformed Container When the container 10 is the deformed container 10b shown in FIG. 2C (hereinafter, “container 10b”), the mounting table 60b without the direction regulating pin is used. .
Referring to FIGS. 9 and 10, the mounting table 60b without the direction regulating pins has the entire mounting surface 62 formed as a flat surface, and has a shape capable of supporting the bottom of the container 10b. .

<8> Holder Ring The holder ring 70 is an annular member that functions to prevent the container 10 from dropping and to position the container bottom in cooperation with the mounting table 60, and can accommodate the bottom of the container 10 in the center thereof. A container accommodation opening 71 having a simple shape is formed.

<8.1> Attaching Means of Holder Ring The holder ring 70 can be attached to and detached from the upper end of the large-diameter cylindrical portion 54b of the different-diameter outer cylinder 54 via a plurality of magnets 57.
In order to center the holder ring 70 and the large-diameter cylindrical portion 54b, it is preferable to form uneven fitting elements on both surfaces of the holder ring 70 and the large-diameter cylindrical portion 54b.
The reason why the magnet 57 is used as the attaching / detaching means of the holder ring 70 is to exchange the holder ring 70 by one-touch operation, and the exchange time and labor can be greatly reduced as compared with the bolt means.
The magnet 57 is fixed to either the upper end surface of the large-diameter cylindrical portion 54b or the lower surface of the holder ring 70.
If the magnet 57 is fixed to the upper end surface of the large-diameter cylindrical portion 54b, the number of magnets 57 to be installed can be minimized even if there are a plurality of types of holder rings 70.

<8.2> Appropriate Use of Holder Ring As described above, in the present invention, the holder ring 70 is selectively used as follows depending on the difference in the bottom sectional shape and the bottom structure of the container 10.

  When the container 10 is the container 10a with a concave portion shown in FIGS. 2A and 2B, a holder ring 70a having a circular container housing opening 71 is used.

  In the case where the container 10 is the deformed container 10b shown in FIG. 2C, a holder ring 70b whose container receiving opening 71 has a shape corresponding to the bottom cross-sectional shape of the deformed container 10b is used.

[Labeling method]
Next, a method of attaching a label to the concave container 10a and the deformable container 10b will be individually described.

[I] Method of attaching label to container with concave portion

<1> Selection of mounting table and holder ring for container with concave portion When attaching a label to container 10a with a concave portion (hereinafter referred to as “container 10a”) shown in FIGS. An annular mounting table 60a, a holder ring 70a having a circular container housing opening 71, and a pin unit 80 with a direction regulating pin are used for the mounting table 50.
The mounting method will be described with reference to FIGS. 4 to 6. After the pin unit 80 is housed in the housing hole 52 a of the enlarged-diameter shaft 52 with the direction regulating pin 82 facing upward and fixed with the fixing bolt 84, The mounting table 60a is mounted on the upper part of the pin unit 80.
At this time, the cylindrical portion 65 of the mounting table 60a is interposed between the enlarged-diameter shaft portion 52 and the different-diameter outer cylinder 54.
Finally, a holder ring 70a is put on the upper end surface of the outer cylinder 54 of a different diameter and fixed via the magnet 57.

<2> Disconnecting Operation of Intermittent Device For the intermittent device 56 of each mounting table 50, the button 56 b shown in FIG. 7 is pulled down to release the connection between the enlarged-diameter shaft portion 52 and the outer cylinder 54 of different diameter. Keep it.
The connection is released in order to apply a rotational force to the different-diameter outer cylinder 54 by the winding fixed belt 25 while interrupting the rotation transmission to the different-diameter outer cylinder 54 by the servomotor M.

<3> Loading of Container In FIG. 1, the containers 10a are sequentially loaded into the mounting tables 50 of the rotary transport device 20 through the loading star 42.
When the presser 24 shown in FIG. 3 descends immediately after being carried in, the presser 24 holds the head of the container 10 a and the bottom of the container 10 a enters the container accommodating opening 71 of the mounting table 50.

<4> Direction Regulation of Container The regulation of the direction of the container 10a will be described in detail with reference to FIG.
FIG. 8 shows a model diagram of the direction regulating operation of the container 10a. FIG. 8A shows that the container 10a mounted on the mounting table 60a revolves while the pin unit 80 stops rotating. FIG. 7B shows a state in which the direction regulation has been completed.

<4.1> Forced rotation of the container As each mounting table 50 revolves, the outer diameter cylinders 54 of the mounting tables 50 circumscribing the winding fixed belt 25 receive the frictional force of the winding fixed belt 25. Forced to rotate.
With the rotation of the different-diameter outer cylinder 54, the mounting table 60a and the holder ring 70a rotate, and the container 10a mounted on the mounting table 60a rotates in one direction. At this time, the pin unit 80 integrated with the servomotor M is in a rotation stopped state.

<4.2> Stopping rotation of the container The concave portion 12 turns by the rotation of the container 10a, and the direction regulating pin 82 fits into the concave portion 12 when the concave portion 12 passes through the direction regulating pin 82.
Since the rotation of the pin unit 80 is stopped, the rotation of the container 10a is stopped when the recess 12 and the direction regulating pin 82 are fitted. While the rotation of the container 10a is stopped, a slip occurs between the winding fixed belt 25 and the different-diameter outer cylinder 54.
Even after the rotation of the container 10a is stopped, the rotational force is transmitted to the different-diameter outer cylinder 54 through the winding fixed belt 25, but the container 10a continues to revolve with the mounting table 50 without rotating.

<4.3> Variations in Direction Regulation In order to facilitate the fitting, there is a dimensional difference between the recess 12 and the direction regulating pin 82, and the gap between the recess 12 and the direction regulating pin 82 when fitted. It is known that there is a gap in the space. Conventionally, this gap has caused variation in the direction regulation of the container 10a.
As shown in FIG. 8 (B), in the present invention, even after the rotation of the container 10a is stopped, a rotational force is applied to the outer cylinder 54 of the different diameter through the winding fixed belt 25. Therefore, the direction regulating pin 82 is pressed against one side (rear side with respect to the traveling direction) of the recess 12, and an invariable gap G is formed between the direction regulating pin 82 and the recess 12.
As described above, even if a gap of various sizes is generated between the direction regulating pin 82 and the concave portion 12, the contact point P between the two members 12, 82 does not change, so that the direction regulation of the container 10a does not vary.

<5> Attachment of Label In response to the drive of the servo motor M, the rotation of the rotating shaft 51 is controlled so that the surface to be attached of the outer peripheral surface of the container 10a faces the label supply means 30.
When passing through the label supply means 30, a label is attached to a predetermined position on the outer peripheral surface of each container 10a with high accuracy.
When the label is applied, the rattling between the direction regulating pin 82 and the concave portion 12 is eliminated, so that the accuracy of applying the label is remarkably improved as compared with the related art.

When a plurality of label supply means 30 are provided around the rotary transfer device 20, the servomotor M accurately controls the rotation of the container 10a in accordance with the surface to be affixed with the label and is located at a plurality of positions on the container 10a. A label is attached.
While the label is being applied, a rotational force is applied to the different-diameter outer cylinder 54 through the winding fixed belt 25, but rotation by the servo motor M is prioritized. Causes slip.

<6> Unloading of Container The container 10a on which the label has been attached is unloaded to the unloading path 41 through the unloading star 44.

[II] Method of attaching label to deformed container

<1> Selection of Placement Table and Holder Ring for Deformed Container When applying a label to the deformed container 10b (hereinafter, “container 10b”) shown in FIG. The mounting table 60b without the regulating pin and the holder ring 70b in which the container accommodating opening 71 has a shape corresponding to the bottom cross-sectional shape of the deformable container 10b are used, and the pin unit 80 described above is not used.
After the mounting table 60b is interposed between the enlarged diameter shaft portion 52 and the different diameter outer cylinder 54, the holder ring 70b is put on the upper end surface of the different diameter outer cylinder 54 and fixed via the magnet 57.
To exchange the mounting table 60b for the container 10b and the holder ring 70b, simply remove the mounting ring 60a for the already mounted container 10a and then remove the mounting table 60a and the pin unit 80. Good.
Further, the setting operation of the mounting table 60b for the container 10b and the holder ring 70b can be performed very easily.

<2> Connection Operation of Intermittent Device In FIG. 10, the button 56 b of the intermittent device 56 provided on each mounting table 50 is pushed up to connect the enlarged-diameter shaft portion 52 and the different-diameter outer cylinder 54.
The reason why the enlarged diameter shaft portion 52 and the different diameter outer cylinder 54 are connected is to transmit the rotation by the servo motor M to the holder ring 70b through the different diameter outer cylinder 54.

<3> Adjustment of carry-in interval In FIG. 11, the space between the carry-in star 42 and the carry-in guide 43 is adjusted in advance so that the direction of the container 10b is oriented in a specific direction.

<4> Loading of Container In FIG. 11, the containers 10 b of which the direction is regulated through the loading star 42 are sequentially loaded into the mounting table 50 of the rotary transport device 20.
When the presser 24 shown in FIG. 3 is lowered immediately after being carried in, the presser 24 holds the head of the container 10b, and the bottom of the container 10b is stored in the container receiving opening 71 of the mounting table 50 for positioning. Is done.

<5> Attachment of Label In response to the drive of the servo motor M, the rotation of the rotating shaft 51 is controlled so that the surface to be attached of the outer peripheral surface of the container 10b faces the label supply unit 30.
While the container 10b is revolving, the rotation of the different-diameter outer cylinder 54 is controlled by the servomotor M, so that a slip occurs between the different-diameter outer cylinder 54 and the winding fixed belt 25. There is no adverse effect on the rotation control of the different diameter outer cylinder 54.

  As described above, the rotary transfer device 20 is different from the rotary transfer device 20 in that only a part of the mounting table 50 (the mounting table 60, the holder ring 70, and the pin unit 80) is replaced with a different one having a bottom sectional shape and a bottom structure. Labels can be applied to the types of containers 10 (containers 10a with concave portions and deformed containers 10b).

M Servo motor 10 Container 10a Container 10b with recessed portion Deformed container 11 Bottom surface of container 12 Container recessed portion 20 Rotary transfer device 21 Main rotating shaft 22 Lower rotating plate 23 Upper rotating plate 24 Holder 25 Wrap Fixed belt 30 Label supply means 40 Carry-in path 41 Carry-out path 42 Carry-in star 43 Carry-in guide 45 Carry-out Guide 50, mounting table 51, rotating shaft 52, enlarged diameter shaft portion 52a, accommodation hole 52a of enlarged diameter shaft portion, large diameter enlarged shaft portion Diameter 52c Pin hole 54 Different diameter outer cylinder 54a Small diameter cylinder 54b of different diameter outer cylinder Large diameter cylinder 54c of different diameter outer cylinder・The annular portion 54d of the outer cylinder of the diameter. The annular groove 55 of the outer cylinder of the different diameter. The support cylinder 56 .. The intermittent device 56a. The main body 56b of the intermittent device. Button 56c of intermittent device 57 Magnet 58 Spring receiving cylinder 59 Spring 60 Mounting table 61 The table portion 62 of the mounting table ... The mounting surface 63 of the mounting table ... The exposure port 65 of the mounting table ... The cylindrical portion 66 of the mounting table ... Sliding bearing Holder ring 70a Holder ring 70b for container with concave portion Holder ring 71 for deformed container Container container port 80 Pin unit 81 ..Unit body 82..Direction regulating pin 83..Spring 84..Fixing bolt

Claims (8)

A mounting table, which is rotatably arranged around a vertical rotation axis on a peripheral portion of a rotating plate that rotates in one direction about a vertical main rotation axis and mounts the bottom of the container; and A rotary transfer device of a labeling machine capable of transferring a plurality of types of containers having different bottom cross-sectional shapes and bottom structures by means of a holding member that is rotatably arranged on a coaxial line and that is rotatably disposed and presses the head of the container. ,
A fixed wrapping fixed belt is arranged surrounding the plurality of mounting tables so as to circumscribe the side surfaces of the plurality of mounting tables,
The mounting table is pivotally supported by the lower rotating plate, and a rotation shaft that is rotationally controlled by a servomotor,
A diameter-enlarged shaft portion integrally formed at an upper portion of the rotation shaft, and a housing hole formed at an upper shaft center;
A different-diameter outer cylinder that is disposed externally on the enlarged-diameter shaft portion and that can rotate independently of the enlarged-diameter shaft portion by receiving a rotational force while circumscribing the winding fixed belt,
A mounting table that is detachably interposed between the peripheral surface of the enlarged diameter shaft portion and the outer cylinder of the different diameter , and that rotates integrally with the different diameter outer cylinder independently of the enlarged diameter shaft portion ,
It has a container accommodating opening formed in accordance with the bottom cross-sectional shape of the container so as to be able to accommodate the bottom of the container, and is detachably attached to the upper end of the different-diameter outer cylinder so that it can rotate integrally with the different-diameter outer cylinder. A holder ring to be attached,
An intermittent device attached to a part of the different-diameter outer cylinder and having a slide-type pin that can be disengaged from the enlarged-diameter shaft portion,
The container is positioned by the mounting table for mounting the container on the mounting surface, and the holder ring that stores the bottom of the container in the container receiving port,
A rotating force is always applied to the different-diameter outer cylinder that revolves around the main rotation axis through the winding fixed belt,
The transmission of the rotational force by the servomotor and the transmission of the rotational force by the winding fixed belt can be switched between the enlarged-diameter shaft portion and the different-diameter outer cylinder by sliding the pin of the intermittent device. Features,
Rotary transfer device for labeling machines.   The rotary transfer device for a labeling machine according to claim 1, wherein the holder ring is detachably attached to an upper end of the outer cylinder of a different diameter via a magnet.   The container is a container with a concave portion in which a concave portion for positioning is formed at a position deviated from the center of the bottom surface of the container, and a pin unit provided with a direction regulating pin that can be fitted with the concave portion, and the holder ring, 3. The rotary transfer device for a labeling machine according to claim 1, wherein a bottom portion of the container with the concave portion is positioned, and the pin unit is detachably accommodated in an accommodation hole of the enlarged diameter shaft portion.   The rotary conveyance device for a labeling machine according to claim 3, wherein a bottom cross section of the container with the concave portion has a circular shape.   The connection between the enlarged-diameter shaft portion and the different-diameter outer cylinder by the intermittent device is released so that the rotational force can be continuously applied to the different-diameter outer cylinder using the frictional resistance of the winding fixed belt. The rotary transfer device for a labeling machine according to claim 3, wherein the rotary transfer device is provided.   The container is a deformed container having no positioning concave portion on the bottom surface, and a bottom cross-sectional shape of the container is non-circular, and the container receiving opening is deformed by a holder ring having a non-circular shape and the mounting table. The rotary conveying device of a labeling machine according to claim 1, wherein a bottom of the container is positioned.   The rotary conveying device of a labeling machine according to claim 6, wherein the cross-sectional shape of the bottom of the deformable container has a flat shape or a polygonal shape.   8. The labeling according to claim 6, wherein the intermittent device connects the enlarged diameter shaft portion and the different diameter outer cylinder so that rotation by the servomotor can be transmitted to the holder ring. Machine rotary transfer device.

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