JPH07102889B2 - Rotary container transfer device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container mouth wrapping device for wrapping a thermoplastic thin film sheet in the mouth of a container such as a milk bottle, a filling machine, a capper, a labeler, and a washing bottle. TECHNICAL FIELD The present invention relates to a rotary transfer device for a container used for transferring the container in various device bodies that perform various work processes for the container such as a machine.

[0002]

2. Description of the Related Art Conventionally, in a rotary type transfer device for a container of this type, an appropriate lifting mechanism is orbited while revolving around a circle having a predetermined radius around the rotation axis of the main body of the device in relation to its working process. There is a case where a container is placed on a pedestal that moves up and down via the pedestal to be transferred (Japanese Patent Publication No. 50-11828). By the way, even in a rotary type transfer device in which a pedestal part of this kind moves up and down, the introduction of the container into the device is
It is carried out from the transport conveyor via the star wheel. Therefore, in order to perform the introduction smoothly, it is necessary to match the upper surface of the pedestal in the introduction area of the rotary type transfer device with the transport surface of the star wheel portion,
The upper surface of the pedestal portion is also generally formed in a flat shape. However, this was problematic in terms of supporting the bottom of the container. In addition, when it is attempted to support the bottom of the container correspondingly, the supporting structure becomes complicated. Further, in the case of further imparting the rotation motion to the pedestal that moves up and down as described above, the configuration related to the bottom support structure of the container and the drive mechanism for rotation has added to the problem.

[0003]

SUMMARY OF THE INVENTION The present invention has been made under the circumstances as described above. With a simple structure, the container can be smoothly introduced, and the bottom of the container is kept in the middle of the transfer in the apparatus. It is an object of the present invention to provide a supported rotary type transfer device, and further to provide a rotary type transfer device which can cope with a case where a rotation motion is given to the cradle with a simple configuration.

[0004]

The invention according to claim 1 is
Arranged on the rotation support plate attached to the rotation shaft of the device body,
A rotating frame body is rotatably attached to each of the tops of an appropriate number of lifting shafts that are raised and lowered through an appropriate lifting mechanism while revolving on a circle with a predetermined radius, and the rotation frame is rotated. A pedestal that supports the bottom of the container is fitted in the center of the frame so that it can slide only in the vertical direction, and the lowering of each of the lifting shafts is performed.
Through between the rotary support plate side to cradle the Te state odor
The upper surface of the pedestal is the height of the upper surface of the rotating frame.
The pedestal relative to the rotating frame to match
It is characterized in that a position restricting member for raising it is provided . According to a second aspect of the present invention, a friction belt having an appropriate length is stretched at a position where the outer peripheral surface of the rotary frame contacts, and contact friction between the outer peripheral surface of the rotary frame and the friction belt and the rotary frame thereof. The pedestal of the container is rotated through the rotation of the rotating frame body based on the revolution of the body.

[0005]

With the above technical means, the pedestal slides relatively downward by a predetermined gap formed between the rotary frame and the pedestal as the lifting shaft rises, and the pedestal is moved. Since the peripheral portion is formed by the rotary frame, the peripheral portion supports the bottom portion of the container and prevents the displacement. Also,
When the lifting shaft is in the lowered state,
The position regulating member is interposed between the rolling support plate side and the
Raise the base relative to the rotating frame
Face up with the top of the cradle and face the bottom of the container
Release the restraint (Claim 1). Further , as the rotating means of the rotating frame, only the friction belt is stretched at a position where it can come into contact with the outer peripheral surface of the rotating frame in a predetermined range to be rotated, so that the driving means for that can be omitted and the structure is simple. In addition, when a certain load is applied to the rotating frame side, it is possible to prevent slippage of the contact surfaces between the rotating frame body and destruction, and it is easy to inspect and clean the part. Item 2).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a mouth wrapping device for wrapping a sheet piece in the mouth of a container will be described below with reference to the drawings. FIG. 1 is a schematic plan view showing an overall layout of an embodiment of the present invention, which is a conveyor 1, an apparatus main body 2 for enclosing a sheet piece at the mouth of a container conveyed by the conveyor 1, and a container. The main elements are a ribbon hanging device 3, a sheet piece feeding device 4, and a ribbon feeding device 5, which hang a fastening ribbon on a sheet piece wrapped in the mouth. The container conveyed on the conveyer conveyor 1 is transferred to the apparatus main body 2 through the introduction path composed of the star wheel 7 and the guide 8 at predetermined intervals by the infeed screw 6 at a predetermined timing. In the device body 2,
In the delivery area A, the delivery of the sheet piece is received from the sheet piece supply device 4. In the sheet piece feeding device 4, the belt-shaped sheet 10 is fed from the feeding roll 9 by the feeding roller 12 and the pinch roller 13 at a prescribed speed while a predetermined tension is applied by the tension roller 11. When the belt-shaped sheet 10 is sucked and transferred on the cutting vertical rotary drum 14, it is cut into sheet pieces of a predetermined length by the sheet cutting means 15 using an appropriate cutter such as a heat cutter. This sheet piece is suction-held on the cylindrical outer peripheral surface of the vertical axis rotating drum 16 for delivery, and in the delivery area A, it is delivered to the arc-shaped suction-holding surface of the sheet piece suction-holding segment on the apparatus body 2 side. .
In this case, the vertical axis rotary drum 1 for cutting these
4. As the suction-holding means of the sheet piece in the vertical-axis rotating drum 16 for delivery and the sheet piece suction-holding segment on the apparatus main body 2 side, there is a means for vacuum suctioning through a through hole formed in the suction surface. Used and the delivery between them is
It is performed by performing on / off control of the vacuum state according to the delivery timing angle. In the figure, 17 indicates a supply roll for a spare.

In the work area B, the segment of the apparatus main body 2 is horizontally rotated while a sheet piece is sucked and held by a mechanism described later, and the mouth of the container is inserted into the opening formed in the segment. As a result, a work process of covering the mouth of the container with the sheet piece is performed. In the heating region C, the hot air supplied from the hot air supply means 18 is guided to the sheet piece portion covering the mouth of the container to cause the heat shrinkage. In the cooling region D, cold air from a cold air supply means described later is guided to the sheet piece portion to cool it. In this way, the container in which the sheet piece is covered in the mouth is discharged from the discharge area E, and is transferred to the ribbon hooking device 3 via the guide path including the star wheel 19 and the guide 20. As in the case of feeding the sheet pieces, the ribbon-hanging device 3 is fed with a belt-shaped ribbon 22 from a feed roll 21 while a predetermined tension is applied by a tension roller 23, and a feed roller 24 for feeding. And it is sent out at a predetermined speed by the pinch roller 25. The ribbon 22 is applied with hot melt by a hot melt supply means 26 on the way and then supplied to a known ribbon hanging device 3 to carry out a ribbon hanging operation on a sheet piece portion covered by the mouth portion of the container. Is done. The container for which the ribbon hanging operation has been completed is discharged onto the transport conveyor 1 through a discharge path formed by the star wheel 27 and the guide 28. In the figure, reference numeral 29 is a spare supply roll, and 30 is a heating means.

FIG. 2 is a vertical sectional view showing a main part of the apparatus main body 2, and FIG. 3 is a plan view of the same. In the figure, 31 is a fixed shaft, 32 is a rotary shaft, and 33 is a bearing portion thereof. A cam plate 34 is mounted on the fixed shaft 31, and a rotary plate 35 is mounted on the rotary shaft 32. An appropriate number of encapsulating heads 36 are arranged on the outer peripheral portion of the rotary plate 35. This encapsulation head 36
A pressing member 38, which is pressed downward by a spring 37, is slidably built in the inside of the, so that the lifting table 3
By pressing the upper surface of the mouth of the container 40 that moves up and down by 9, the sheet piece 41 is pressed and supported between the pressing member 38 and the upper surface of the mouth of the container 40. An annular sheet piece squeezing member 42 composed of a coil spring or the like is disposed below and inside thereof, and serves to squeeze the sheet piece 41 so as to cover the mouth of the container as the container 40 rises. .
Further, on the outer side of each encapsulating head 36, a segment 43 having an arc-shaped sheet piece suction holding surface is provided.
It is supported rotatably about a support shaft 45 via.
A connecting rod 46 is connected to the other end of the rotating arm 44 on one side of each segment 43, and the lower arm 47 and the rotating shaft 4 are connected.
It is configured to be rotated by a cam follower 50 that moves along the cam surface formed on the peripheral surface of the cam plate 34 via the 8 and the upper arm 49. In the figure, 51 is a return spring connected to the lower arm 47.
Further, a vacuum pipe 52 for adsorbing and holding a sheet piece is connected to each segment 43, and is connected to a vacuum means such as a vacuum pump (not shown) via a joining means 53 such as a rotary joint. In the figure, 54 is an opening for inserting the mouth of the container 40 formed in the center of each segment 43, and 55 is the hot air supply means 18 in the heating region C.
An opening for supplying hot air communicating with 56, 56 is the joining means 5
3 shows a cold air supply pipe connected to a cool air supply means such as a blower (not shown) through a pipe 3.

Next, the features of the present invention will be described in detail. 4 is a vertical cross-sectional view showing a support mechanism of the lifting platform 39, FIG. 5 is a vertical cross-sectional view showing a raised state of the lifting platform 39, and FIG. 6 shows a main part of the lifting platform 39. FIG. In the figure, 57 is an elevating shaft, which is supported by a bearing 59 provided on a rotation supporting plate 58 mounted on the rotating shaft 32 so as to be able to move up and down. A cam follower 60 is attached to the elevating shaft 57, and a cam plate fixed to a support body 63 fixed to a fixed table surface 62 or the like of the apparatus body 2 by the urging force of a return spring 61. It is configured to move up and down along the cam surface of 64. In the figure, 65 is the cam follower 60 at the tip.
The attached shaft portion is inserted into the vertical slit 66 formed in the bearing portion 59 to guide the elevating shaft 57 in the vertical direction. Further, as shown in FIG. 6, a rotary frame body 68 is rotatably mounted on the top of the elevating shaft 57 via rotary bearing means 67 such as a bearing. A recess is formed in the center of the upper portion of the rotary frame 68, and a pedestal 69 that supports the bottom of the container 40 is slidably fitted only in the vertical direction. In the figure, 70 is a position restricting member formed on <br/> lower surface of the cradle 69, the position regulating member 7
0 By slidably fitted into the fitting hole 71 formed in the rotating frame 68, configured Then simultaneously so as to slide only vertically the cradle 69 relative to the rotary frame 68
Then, the lower end of the position regulating member 70 penetrates through the fitting hole 71.
The tip of the lifting shaft 57 in the lowered state.
At a proper place on the upper surface of the bearing 59 such as the upper surface of the rotation support plate 58 side.
Contacted and positioned between the cradle 69 and the rotary support 58 side
By interposing the regulating member 70,
A predetermined gap S is formed between the pedestal 6 and the rotating frame 68.
So that the upper surface of 9 matches the height of the upper surface of the rotary frame 68.
Is configured. In the figure, 72 is a communication hole for ventilation, 73
Is a friction belt. As will be described below, the friction belt 73 is means for contacting the outer peripheral surface of the rotary frame body 68 and imparting a rotation motion to the rotary frame body 68.

FIG. 7 is a plan view of an essential part showing the arrangement state of the friction belt 73. In the figure, 74 is a friction belt 7.
3 is an end support portion that supports one end portion of 3. An arm 75 is fixed to the end support portion 74, and the friction belt 73 is held at a position where it can contact the outer peripheral surface of the rotary frame body 68 as shown in FIG. 6 via a guide roller 76 attached to the tip thereof. To do. In the figure, reference numeral 77 is an end portion support portion that supports the other end portion of the friction belt 73. The end support portion 77 supports the other end of the friction belt 73, and a rotation support plate 78 that is biased in the direction of the arrow in the drawing by a biasing means such as a spring is pivotally supported. As a result, a predetermined tension is applied to the friction belt 73. Further, an arm 79 is supported by the end support portion 77, and a friction belt 73 is supported by a guide roller 80 attached to the tip of the arm 79.
Hold the other end of the in place. In addition, this arm 7
9 is rotatably supported and is biased by a spring or the like in the direction of the arrow in the figure, and at the same time, it is maintained at a predetermined position during normal operation by stopper means (not shown). When the rotary frame 68 is removed at the time of inspecting or cleaning the portion, the friction belt 73 can be loosened by rotating the arm 79 against the biasing means such as the spring. , Very convenient.

In the working area B, however, when the container 40 is introduced into the apparatus main body 2 via the star wheel 7, the elevating shaft 57 is at the lower position and the pedestal 6 is provided.
As shown in FIG. 4, the upper surfaces of the rotating frame body 9 and the rotating frame body 68 coincide with each other, so that the introduction from the star wheel 7 can be carried out very smoothly. After that, the work step of covering the mouth of the container 40 with the sheet piece 41 is started, but in this case,
Since the elevating shaft 57 immediately rises, a predetermined gap S formed between the rotary frame body 68 and the pedestal 69 along with this rise.
Since the pedestal 69 slides relatively downwards by an amount corresponding to that shown in FIG.
As shown in FIG. 6A and FIG. 6B, the rotary frame 68 is provided around the pedestal 69.
To form a peripheral portion. As a result, the bottom of the container 40 is supported and displacement is prevented, so that subsequent operations can be performed under a more stable and favorable transfer state. Further, when moving to the heating region C and the cooling region D, the outer peripheral surface of the rotary frame body 68 comes into contact with the friction belt 73 as shown in FIG. 7, so that this contact friction and displacement due to the revolution of the rotary frame body 68 cause , Rotational movement is added. in this case,
Since a predetermined tension is applied to the friction belt 73 by the rotation support plate 78, an extremely good contact state can be obtained. The rotation movement of the rotary frame body 68 is caused by the position regulating member 7
Since it is also transmitted to the cradle 69 via 0, it is possible to uniformly heat or cool the container 40 while rotating it. In addition, the container 40 in which the elevating shaft 57 is in a lowered state
At the time of introduction and discharge, as described above, the pedestal
69 and a position regulating member 70 between the rotation support plate 58 side.
The cradle 69 with respect to the rotary frame 68 by a predetermined amount
The container 4 is lifted in a pair and the heights of the upper surfaces thereof are matched to each other.
Release the restraint on the bottom of 0. As described above ,
The container 40 that has completed the work process of the apparatus main body 2 is discharged from the discharge area E and transferred to the next process.

[0012]

According to the present invention, the following effects can be obtained based on the above constitution. (1) As the lifting shaft rises, the pedestal slides relatively downward with respect to the rotary frame, and a peripheral edge portion is formed by the rotary frame around the pedestal. Therefore, the bottom portion of the container is supported by this peripheral portion, and the deviation is prevented (Claim 1). (2) When the lifting shaft is in the lowered state, the pedestal
To the position regulating member interposed between the rotation support plate side and
Therefore, the pedestal rises relative to the rotating frame by a predetermined amount.
However, the upper surface of the pedestal matches the height of the upper surface of the rotating frame.
Can automatically release the restraint on the bottom of the container.
Yes (Claim 1) . (3) Sliding mechanism of the pedestal relative to the rotating frame
As for the pedestal in the lowered state of the lifting shaft,
To raise it a predetermined amount relative to the body,
The position is regulated so as to be interposed between the base and the side of the rotary support.
A member is provided and the pedestal is attached to the rotating frame.
It only needs to be fitted so that it can slide only in the vertical direction.
Is extremely simple (Claim 1) . ( 4 ) As the rotating means of the rotating frame, only the friction belt is stretched at a position where it can come into contact with the outer peripheral surface of the rotating frame in a predetermined range to be rotated. Therefore, the driving means for that can be omitted. Not only is it simpler, but when a certain load is applied to the rotating frame side, it is possible to prevent slippage at the contact surface between the two and to prevent destruction, and to easily inspect and clean that part. It has utility (claim 2).

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an overall layout of an exemplary embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the main parts of the apparatus main body in the embodiment.

FIG. 3 is a plan view showing a main part of the apparatus main body with a partial cross section.

FIG. 4 is a vertical cross-sectional view showing a support mechanism of a lifting platform.

FIG. 5 is a vertical cross-sectional view showing a lifted state of the lifting table.

FIG. 6 is a partially enlarged view showing a main part of the lifting table.

FIG. 7 is a plan view of relevant parts showing an arrangement state of a friction belt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conveyor, 2 ... Device main body, 3 ... Ribbon hanging device, 4 ... Sheet piece supply device, 5 ... Ribbon supply device, 10
... Strip-shaped sheet, 14 ... Vertical axis rotating drum for cutting, 15 ...
Cutting means, 16 ... Vertical axis rotating drum for delivery, 22 ... Strip ribbon, 31 ... Fixed axis, 32 ... Rotating axis, 34 ... Cam plate, 35 ... Rotating plate, 36 ... Encapsulating head, 39 ... Elevating table,
40 ... Container, 41 ... Sheet piece, 43 ... Segment for adsorbing and holding sheet piece, 44 ... Rotating arm, 50 ... Cam follower, 57 ... Elevating shaft, 58 ... Rotating support plate, 59 ... Bearing part, 60 ... Cam follower, 64 ... Cam plate, 65 ... Support shaft portion, 66 ... Vertical slit, 67 ... Rotation bearing means, 68 ...
Rotating frame, 69 ... Cradle, 70 ... Position regulating member, 73 ...
Friction belt, 74 ... End support portion, 76 ... Guide roller, 7
7 ... End support part, 78 ... Rotation support plate, 80 ... Guide roller

Claims (2)

[Claims] 1. A rotary support mounted on a rotary shaft of an apparatus main body.
At the top of each of a suitable number of lifting shafts, which are arranged on a plate and revolve around a circle of a predetermined radius and which are lifted and lowered through an appropriate lifting mechanism,
A rotary frame is rotatably attached to each of the elevating shafts, and a pedestal for supporting the bottom of the container is fitted in the center of the rotary frame so as to be slidable only in the vertical direction. It said rotary support and cradle the Te decreasing state odor of the elevator shaft
It is interposed between the plate side and the upper surface of the pedestal,
Rotate the pedestal to match the height of the upper surface of the body
A rotary transfer device for a container, characterized in that it is provided with a position regulating member that raises the container relatively . 2. A friction belt having an appropriate length is stretched at a position where the outer peripheral surface of the rotary frame comes into contact with each other, and contact friction between the outer peripheral surface of the rotary frame and the friction belt and revolution of the rotary frame. The rotary type transfer device for a container according to claim 1, wherein the pedestal of the container is rotated through rotation of the rotating frame based on the above.