JP3206612B2 - Rotary filling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a rotary filling device.
More particularly, the present invention relates to an improvement of a gripper for holding a container on a bottle base.

[0002]

2. Description of the Related Art Conventionally, as a rotary filling device, a rotatable rotatable member, a plurality of bottle stands arranged in a circumferential direction of the rotatable member, on which containers can be placed and moved up and down, have been described. A gripper provided for each bottle in the rotating body and gripping a container on each bottle; and a gripper disposed at a position above each bottle in the rotating body, and provided on the bottle during rotation of the rotating body. A device provided with a filling valve for filling a filling liquid into a container is known (for example, Japanese Patent Publication No. 52-23308). In such a conventional apparatus, when the gripper grips the container, the center of the container is aligned with the center of the filling valve, whereby the lower end of the filling valve is placed in the container during rotation of the rotating body. The part can be inserted without any trouble and the filling liquid can be filled in the container.

[0003]

In such a conventional rotary filling apparatus, when the size of the container to be processed is changed, each gripper is replaced so as to be adapted to the size of the new container. And the replacement work is complicated. In addition, conventionally, there is also known a rotary filling device that includes a gripper that can be used for both large and small containers and that can match the center of a gripped container with the center of a filling valve. However, since the gripper of such a rotary filling device is configured to hold a position below the body of the container, the size of the container that can be shared by one gripper is limited, and therefore, versatility is increased. Was low.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention provides a rotatable rotatable member and a plurality of rotatable members arranged in a circumferential direction of the rotatable member so that a container can be placed and moved up and down. And the adjacent position for each bottle in the rotating body
To a plurality of grid <br/> path to grip the container on each bottle stand provided, are respectively arranged on the bottle base of the upper position in the rotating body, on the bottle table during the rotation of the rotating body In a rotary filling device having a filling valve for filling a filling liquid into a container, each gripper is configured to be openable and closable,
And a drive for opening and closing the arm.
Moving means, and each gripper described above is placed adjacent to them.
It is configured to be able to move up and down for each bottle base at the position,
All grippers are moved simultaneously to the adjacent bin
An elevating device for elevating is provided.

[0005]

According to such a configuration, all the grippers can be positioned at a required height with respect to the adjacent bottle base by the elevating device, so that the gripper can grip the neck of the container. By the way, in general, when the size of the container is changed, the amount of change in the diameter of the neck of the container is much smaller than the amount of change in the diameter of the body of the container. By gripping the neck, the range of containers that can be shared is increased. Moreover, even if the body of the container has a square or tapered shape, the neck of the container often has substantially the same shape, so that the container can be used for various types of containers without replacing the gripper. Can be. Therefore, the versatility of the rotary filling device can be improved as compared with the related art.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In FIGS. 1 and 2, reference numeral 1 denotes a rotary filling device for filling a container 2 with a predetermined amount of filling liquid. The rotary filling device 1 includes a rotating body 3 that is rotated in a clockwise direction. The rotating body 3 includes a lower rotating table 4 and a filling liquid tank 5 provided above the rotating table 4. Rotary table 4
Are provided at the circumferentially equidistant positions of the bottles 6 on which the container 2 is placed and moved up and down. Further, the bottom surface of the filling liquid tank 5 above the bottle stands 6 has a conventionally known configuration. A filling valve 7 is attached. A gripper 8 for gripping the container 2 on each bottle base 6 is disposed at a position adjacent to each bottle base 6, and the gripper 8 is used to hold each bottle 6.
The container 2 placed on top is gripped so that the center of the container 2 matches the center of the filling valve 7, and the container 2 is prevented from dropping from the bottle base 6. Each bottle base 6
A rotatable cam follower 12 is attached outside the lower end of the support shaft 11 slidably penetrating the rotary table 4. The cam follower 12 is mounted on a lifting cam 14 fixed to a frame 13. The elevating cam 14 surrounds the rotation center of the rotary table 4 and is continuous in the circumferential direction. The cam curve is set as follows. That is, in the movement section A of the turntable 4 from the position of the discharge starwheel 15 to the position of the supply starwheel 16 in the clockwise direction in FIG. 1, the bottle base 6 is set at the lowermost position. Further, in the next moving section B after the moving section A, the bottle base 6 gradually rises from the lowermost end to the rising end, and in the next moving section C, the bottle base 6 is moved while being located at the rising end. Is set to Then, in the moving section D after the moving section C,
Gradually descends from the rising end to the lowermost end, and then returns to the above-mentioned moving section A, so that the bottle base 6 is moved while the moving section A is located at the lowermost end.

Accordingly, when the empty containers 2 are conveyed to the position of the rotary filling device 1 by the conveyor 17, the containers 2 are sequentially placed on the bottle base 6 moving in the moving section A by the supply starwheel 16. Is to be placed. At this time, the container 2 on the bottle base 6 is gripped and centered by the gripper 8.
Thereafter, the container 2 on the bottle base 6 is moved from the lower end to the upper end by moving in the moving section B.
The nozzle 7a of the filling valve 7 is inserted into the upper end of the container 2, and the bottle packing of the filling valve 7 is pressed against the upper end of the container 2. As a result, the filling valve 7 is opened, and filling of the container 2 with the filling liquid is started. Then, in this state, while the container 2 on the bottle base 6 moves in the moving section C, the container 2 is filled with a predetermined amount of the filling liquid, and then when the container 2 moves to the moving section D, the container 2 Is lowered from the rising end to the falling end, so that the upper end of the container 2 is separated from the bottle packing of the filling valve 7. Therefore, the filling valve 7 is closed and the nozzle 7a is withdrawn from the container 2. Thereby, the filling of the filling liquid into the container 2 is completed.

Thereafter, when the container 2 is moved from the moving section D to the moving section A, the container 2 is released from the gripping state by the gripper 8 and is moved from the bottle base 6 to the conveyor 17 via the discharge star wheel 15. Is discharged. The filling liquid tank 5 of the present embodiment not only rotates integrally with the turntable 4 but also can move up and down with respect to the turntable 4, so that when the height of the container 2 is changed, The height position of the filling liquid tank 5 can be adjusted according to the height. Therefore, the filling liquid can be filled into the containers 2 having different heights by the filling valve 7 irrespective of the constant lifting stroke of the bottle base 6 by the lifting cam 14. The configuration in which the filling liquid tank 5 can be moved up and down with respect to the rotary table 4 is as follows.
For example, it is well known in Japanese Patent Publication No. 52-23308 (U.S. Pat. No. 4,024,896), and the detailed description is omitted here. As will be described in detail later, the filling liquid tank 5
A cleaning device 18 for cleaning the filling valves 7 is provided between the rotary table 4 and the rotary table 4.
Is provided with a washing cup 21 provided for each filling valve 7. Then, in a state where the cleaning liquid is stored in the filling liquid tank 5 after the above-described filling operation is completed, each cup 21 is pressed against the bottle opening packing of each filling valve 7 from below to open each filling valve 7. This allows the cleaning liquid in the filling liquid tank 5 to flow through each filling valve 7 to clean the inside thereof. And
The cleaning liquid flowing through each filling valve 7 is collected in a collecting tank (not shown) via each cup 21 and a drainage pipe 22 connected thereto.

In this embodiment, the gripper 8 is configured to be able to move up and down with respect to the bottle base 6 and is provided with an elevating device 23 for moving the gripper 8 up and down with respect to the bottle base 6. With such a configuration, the gripper 8 can grip the neck 2a of the container 2 on the gantry 6, so that the containers 2 having different sizes can also be used as the gripper 8. That is, as also shown in FIGS. 3 to 5, each gripper 8 is composed of a pair of arms 24A and 24B for gripping the neck 2a of the container 2 and a driving means 25 for opening and closing them. The driving means 25 is provided with a set of three support shafts 26, 27 and 28 which slidably penetrate the rotary table 4, and the arm 24 is provided on the upper end of two of the support shafts 27 and 28.
A and 24B are attached. Of the three sets of support shafts 26, 27, 28, two support shafts 26 on both sides,
The upper and lower ends of the support shaft 28 are fixed to the connection blocks 29 and 30, but the support shaft 27 at the center position is connected to the connection block 2.
It is rotatably attached to 9, 30. And
The set of three support shafts 26, 27, 28 can be integrally moved up and down along the cylindrical guide 4a of the turntable 4. Thereby, the pair of arms 2
4A and 24B can be raised and lowered with respect to the bottle base 6, and the arms 24A and 24B are provided with a lock mechanism 3 described later.
3 allows it to be fixed at a predetermined height position with respect to the bottle base 6. The set of three support shafts 26, 2
7, 28, the upper end of the support shaft 27 located at the center and the upper end of the support shaft 28 on the right side thereof penetrate the upper connecting block 29, and the gear 34 is fitted to the outer peripheral portion penetrated. And they are intermeshed with each other. The gear 34 of the support shaft 27 on the driving side is fixed to the support shaft 27, but the gear 34 of the support shaft 28 on the driven side is rotatable with respect to the support shaft 28. The bases of both arms 24A and 24B are fitted to the cylindrical portion formed on the upper surface. As a result, when the support shaft 27 is rotated in the forward and reverse directions, the arms 24A and 24B are opened and closed, so that the engagement recesses 24a formed inside the distal ends thereof are provided.
Thereby, the neck 2a of the container 2 can be gripped or the gripping state can be released.

Next, a description will be given of a driving means 25 for opening and closing the arms 24A and 24B and an elevating mechanism 35 for elevating them. A rotatable roller 36 is attached to the inner side surface of the lower connection block 30, and the roller 36 is rotatably mounted on a ring plate 37 mounted on the frame 13. When the connection between the bottle base 6 and the gripper 8 by the lock mechanism 33 is released, the gripper 8 descends due to its own weight, so that the roller 36 is placed on the ring plate 37. As shown in FIG. 7, a lower end of the support shaft 27 of each gripper 8 is provided with a lever 38 pointing outward in the radial direction.
Is fixed, and a cam follower 39 is rotatably attached to the upper surface of the distal end of the lever 38. A tension spring 41 is attached to the lever 38 and the bracket 40 fixed to the lower end of the support shaft 26. Therefore, the lever 38 is constantly urged in the counterclockwise direction, and when the cam follower 39 is not engaged with a cam 42 described later, the arms 24A and 24B are closed so that the container 2 can be gripped. I have. In this embodiment, as shown in FIG. 1, the arms 24A, 24A are provided on the upper surface of the ring plate 37 which is substantially in the same section as the moving section A of the turntable 4.
An arc-shaped cam 42 for opening B is fixed. Therefore, the cam follower 39 of each gripper 8 that moves in the moving section A with the rotation of the turntable 4
To rotate the lever 38 clockwise against the tension spring 41 to open the arms 24A and 24B. Accordingly, the arms 24A and 24B, which have gripped the neck 2a of the container 2 in the movement section D, release the grip state of the neck 2a of the container 2 immediately after moving from the movement section D to the movement section A. When the container 2 is placed on the bottle base 6 by the supply starwheel 16, the arms 24A and 24B with the neck 2a of the container opened are moved. Located between. Since the cam follower 39 at the position of the end of the movement section A is disengaged from the cam 42, the arm 24A, and 24B are closed, the arms 24A, 24B
The neck 2a of the container 2 is gripped by the engaging portion 24a. After that, the arm 24 is also used in the moving sections C and D.
The neck 2a of the container 2 is gripped by A and 24B .

Next, an elevating mechanism 35 for raising and lowering the gripper 8
Will be described. As shown in FIG.
The screw shaft 46 is rotatably supported by a pair of brackets 45 at three places in the circumferential direction on the frame 13 on which the mounting plate 7 is mounted, and these screw shafts 46 are screwed into female screw portions 37 a of the ring plate 37. They are pierced. Screw shaft 46
Is linked to a motor (not shown) via a pinion 47 attached to its lower end and a worm gear 48 meshing with the pinion 47. Therefore, when the connection between the gripper 8 and the bottle base 6 is released by the lock mechanism 33, when the motor is rotated in the normal or reverse direction, the ring plate 37 and all the grippers 8 placed on the ring plate 37 are simultaneously moved up and down. The height position of each gripper 8 with respect to the bottle base 6 can be changed. Next, explaining a locking mechanism 33 for connecting the bottle base 6 and the gripper 8 together, as shown in 5 Figures 3, locking mechanism 33 includes a bracket 49 fixed to the side of the bottle base 6 at one end ing. This bracket 49
A vertical through hole 49a is formed in the other end of the gripper 8, and the through hole 49a is slidably fitted to the support shaft 28 of the gripper 8. A horizontal through hole 49b is formed in the bracket 49, and the rotating shaft 50 is rotatably penetrated through the through hole 49b. At the inner end of the rotating shaft 50, a stopper 50a projecting in the radial direction is formed, and the stopper 50a is attached to the support shaft 28.
Is opposed to a flat surface 28a formed in the axial direction of the outer peripheral portion. On the other hand, a lever 51 directed in the radial direction is fixed to the outer end of the rotating shaft 50, and a cam follower 52 is rotatably attached to the end of the lever 51. As shown in FIG. 1, an opening / closing cam 5 that engages with the cam follower 52 is provided at the center between the two star wheels 15 and 16 in the movement trajectory when the cam follower 52 moves.
3 are provided. As shown in FIG.
Consists of a pair of upper and lower cam members 53a and 53b integrally connected at a predetermined interval, and their upper and lower opposing cam surfaces are on the side where the cam follower 52 enters (the right side in the drawing). The distance between them is increased by inclining. The opening / closing cam 53 is connected to an air cylinder (not shown) attached to the frame 13 vertically upward.
3 is located at the lower end shown by the imaginary line in FIG. On the other hand, when the air cylinder is operated, the opening / closing cam 53 is raised to the position of the rising end shown by the solid line, and is stopped at that position.

When the rotary table is rotated once while the opening / closing cam 53 is stopped at the rising end, each cam follower 52 is sequentially engaged with the cam surface of the opening / closing cam 53. After being rotated counterclockwise by a predetermined angle, the stopper 50 a provided at one end of the rotary shaft 50 is pressed against the flat surface 28 a of the support shaft 28. Thereby, each gripper 8 and each bottle base 6 are integrally connected. During the filling operation of the filling liquid into the container 2 by the filling valve 7, the opening / closing cam 53 is stopped at the rising end. Therefore, during the filling operation, each gripper 8 is moved up and down together with each bottle base 6 in a state of being integrally connected to each bottle base 6. On the other hand, when the connection between each gripper 8 and each bottle base 6 is released, when the rotary table 4 is rotated once while the opening / closing cam 53 is located at the lower end shown by the imaginary line, each cam follower 52 is opened and closed. Since the rotary shaft 50 is rotated clockwise by a predetermined angle by sequentially engaging the cam surfaces 53,
The stopper portion 50a provided at one end of the rotating shaft 50 is
8, and the connection between each gripper 8 and each bottle base 6 is released. Each gripper 8, which has been disconnected from each bottle base 6, descends to a position where the roller 36 is placed on the ring plate 7 by its own weight. Further, in this embodiment, as shown in FIG. 4, a screw hole 49c reaching the through hole 49b is formed in the bracket 49 of the lock mechanism 33 by screwing.
A screw 54 is screwed onto the screw c, and a compression spring 55 is mounted between the tip of the screw 54 and the rotating shaft 50. With this configuration, the flat surface 28 of the support shaft 28
When the stopper 50a is separated from the bottle holder 6 and the connection between the bottle base 6 and the gripper 8 is released, the rotation shaft 50 is prevented from rotating by the weight of the stopper part 50a, and each gripper 8 and each bottle holder 6 are prevented from rotating. Can be reliably maintained.

In this embodiment, the above-described lifting device 23 is provided by the lifting mechanism 35 for lifting and lowering the gripper 8 and the lock mechanism 33 for connecting the gripper 8 and the bottle base 6.
Is composed. According to the above-described configuration, when the height of the container 2 to be processed is changed, the gripper 8 is positioned at a predetermined height with respect to the bottle base 6 by the elevating device 23, and the container 2 on the bottle base 6 is held by the gripper 8. Can be gripped. That is, for example, when the container 2 to be processed by the rotary filling device 1 is changed to a container 2 having a height higher than that previously processed, the filling liquid tank 5 is raised with respect to the rotary table 4. Then, the filling valve 7 is positioned at a height suitable for the lifting stroke of the bottle base 6.
Next, the opening / closing cam 53 is positioned at the lower end shown by the imaginary line in FIG. 5, and the rotary table 4 is rotated once in this state.
Thereby, the connection state between the gripper 8 and the bottle base 6 is released. Thereafter, the motor (not shown) of the elevating mechanism 35 is driven to raise the ring plate 37 by a required amount, and the gripper 8 raised by the ring plate 37 moves the neck 2a of the container 2 changed by the arms 24A and 24B. The ring plate 37 is stopped at a height position where it can be gripped. Thus, the heights of all the grippers 8 can be changed at the same time. Next, in this state, the opening / closing cam 53 is positioned at the rising end shown by the solid line in FIG. 5, and the turntable 4 is rotated once in this state. Thereby, the gripper 8 and the bottle base 6 are integrally connected. Thereafter, the work of filling the filling liquid may be performed by rotating the turntable 4 in the same manner as described above. As described above, according to the present embodiment, even when the size of the container 2 is changed and the height of the container 2 is changed, the neck 2a of the container 2 can be gripped. The versatility of the device 1 can be improved. In general, when the size of the container 2 is changed, the container 2
Since the variation of the diameter of the neck 2a is much smaller, if the gripper 8 grips the neck 2a of the container 2 as in the present embodiment, the range that can be used for both becomes larger. Moreover, even if the shape of the body of the container 2 is square or tapered, the neck 2a of the container 2 often has substantially the same shape, so that various types of containers can be used without replacing the gripper 8. 2 can also be used, so that the versatility of the rotary filling device 1 can be further improved.

(Cleaning Apparatus) Next, the cleaning apparatus 18 will be described with reference to FIGS. 2, 8 and 9. A conventional cleaning apparatus is used for cleaning a cup 21.
And the drive mechanism 57 is provided at an inner position adjacent to each gripper 8 and the bottle base 6, whereas in the present embodiment, the cup 21 and the drive mechanism 57 are connected to the filling liquid tank 5.
The gripper 8 has a bottle base 6
The work space around is enlarged. In addition, the cleaning cup 21 is pressed against the filling valve 7 by utilizing the above-described structure in which the filling liquid tank 5 can be moved up and down. That is, the cleaning device 18 is provided with a ring plate 58 at a position above the turntable 4, and a plurality of cylindrical portions 58 a protrude from the bottom surface of the ring plate 58 at a plurality of positions in the circumferential direction. Shape part 58a
The guide hole 5 is used to connect the inner peripheral surface of the
8b. On the other hand, a stepped guide shaft 5 whose upper side is reduced in diameter at a plurality of positions in the circumferential direction is provided on the inner upper surface of the turntable 4.
9 and the small diameter portions 59a of these guide shafts 59 are provided.
Are slidably passed through the guide holes 58b of the ring plate 58. Further, as shown in an enlarged manner in FIG. 9, cylindrical portions 58c are formed at three positions in the circumferential direction of the ring plate 58 located on the inner side of the guide shaft 59. An engagement hole 58d is formed by the inner peripheral surface of the hole 58c and the through hole continuous therefrom. On the bottom surface of the filling liquid tank 5 facing these engagement holes 58d,
The stepped engagement shafts 60 whose diameters are reduced on the lower side are fixed, and the small diameter portions 60 a of these engagement shafts 60 are made to pass through the engagement holes 58 d of the ring plate 58. A small-diameter portion 60 penetrating through the engagement hole 58d and projecting from the cylindrical portion 58c.
a engagement hole 6 penetrating in the radial direction at a predetermined position in the axial direction of FIG.
0b, and as shown in FIG.
The ring plate 58 and the filling liquid tank 5 are integrally connected by inserting the stopper pin 61 into the engagement hole 60b in a state where the leading end of Oa penetrates the engagement hole 60b. The stopper pin 61 is connected to the piston of the air cylinder 62 so as to advance and retreat. When the stopper pin 61 is retracted from a forward end position shown in FIG. 9 to a retracted end position (not shown), the stopper pin 61 is engaged. Since it is extracted from the hole 60b,
At that time, the connection state between the ring plate 58 and the filling liquid tank 5 is released. In this embodiment, when pulling out the stopper pin 61 from the engagement hole 60b as described above,
As shown in FIG. 2, the cylindrical portion 58a of the ring plate 58
Is carried out in a state in which the filling liquid tank 5 is lowered until is mounted on the step portion 59b of the guide rod 59. In this embodiment, the ring plate 58 and the engagement shaft 6 are formed by the stopper pin 61 and the engagement hole 60b of the engagement shaft 60.
Although the connecting means for connecting or canceling the connected state is constituted, any connecting means may be used as long as the ring plate 58 and the engaging shaft 60 can be connected or the connected state can be released. .

As shown in FIG. 8, at the outer peripheral portion of the upper surface of the ring plate 58, support pins 63 are provided upright by the number of the filling valves 7, and each of the support pins 63 has a cylindrical member 6.
4 is rotatably fitted. Projections 64a and 64b are formed on the outer peripheral portion of each tubular member 64 so as to project in a radial direction at a predetermined angle with respect to each other.
The cup 21 is fixed to the tip of 4a. On the other hand, the lower protruding portion 64b located adjacent to the link mechanism 65
Are connected to each other. One of the cylindrical members 64 includes an air cylinder 66 provided on a ring plate 58.
Is linked. When the air cylinder 66 is advanced to the forward end position indicated by the solid line in FIG. 8, all the cups 21 are simultaneously moved to the advanced end position indicated by the solid line via the link mechanisms 65. In that position, all cups 21 are located immediately below the filling valve 7. On the other hand, when the air cylinder 66 is retracted, all the cups 2 are
1 retreats to the position of the retreat end shown by the imaginary line. In this position, all the cups 21 are located on the inner side of the center between the adjacent filling valves 7.

(Operation) In the cleaning device 18 configured as described above, the ring plate 58 is integrally connected to the filling liquid tank 5 during the filling operation of the filling liquid as shown in FIG. The cups 21 are located at the upper positions indicated by the lines, and each cup 21 is supported on the inward side of the center position of the adjacent filling valve 7. On the other hand, when the filling device 7 is cleaned by the cleaning device 18 after the filling operation is completed, the cleaning is performed in the following order. First, after the remaining filling liquid in the filling liquid tank 5 is discharged, the cleaning liquid is stored in the filling liquid tank 5.
Is stopped at a position where the cylindrical portion 58a abuts on the step portion 59a of the guide shaft 59 (a position indicated by a solid line in FIG. 2). And
In this state, the stopper pin 61 is retracted by the air cylinder 62, and the stopper pin 61 is pulled out from the engagement hole 60b of the engagement shaft 60. Thereafter, when the filling liquid tank 5 is raised to the position of the original rising end, the connection state between the ring plate 58 and the filling liquid tank 5 is released.
Supported by In this state, all the cups 21 are simultaneously advanced by the air cylinder 66 to the advanced end position shown by the solid line in FIG. As a result, all the cups 21 are located immediately below the filling valve 7. Next, when the filling liquid tank 5 is lowered again by a required amount from this state, the bottle port packing of the filling valve 7 and the cup 21 are pressed against each other, and the filling valve 7 is opened. Therefore, the cleaning liquid stored in the filling liquid tank 5 flows through the filling valves 7, and the respective filling valves 7 are cleaned. The cleaning liquid flowing through each filling valve 7 is supplied to a cup 21 and a drain pipe 22.
Through a collecting tank (not shown). Thereafter, the filling liquid tank 5 is raised again to the original position, so that the pressure contact state between the filling valve 7 and the cup 21 is released, and the filling valve 7 is closed.

Thereafter, when all the cups 21 are retracted to the retracted position by the air cylinder 66, the filling liquid tank 5 is disengaged from the engagement shaft 60 with the engagement holes 58 of the ring plate 58.
b until the air cylinder 6
2, the stopper pin 61 is advanced, and the stopper pin 61 is inserted into the engagement hole 60b. by this,
The ring plate 58 and the filling liquid tank 5 are integrally connected. Thereafter, when the filling liquid tank 5 is raised to the original position, the ring plate 58 (the cleaning device 18) integrated with the filling liquid tank 5 also returns to the position shown by the imaginary line in FIG. Thus, the cleaning operation of the filling valve 7 by the cleaning device 18 is completed. As described above, in the cleaning device 18 of the present embodiment, the cup 21 and the driving mechanism 57 thereof are disposed below the filling liquid tank 5 so as to be separated from the periphery of the gripper 8 and the bottle base 6. Therefore, for example, when the container 2 on the bottle 6 is damaged for some reason during the filling operation, the damaged container is placed on the bottle 6 and the rotary table 4.
The cleaning device 18 does not hinder the removal from above. Therefore, the cleaning work around the bottle base 6 becomes easier as compared with the related art in which the cup 21 and the driving mechanism 57 are provided around the gripper 8 and the bottle base 6.
In addition, in the present embodiment, when the cup 21 and the filling valve 7 are brought into pressure contact with each other, since the originally provided lifting / lowering mechanism of the filling liquid tank 5 is used, the cup 21 and the filling valve 7 are brought into pressure contact with each other. There is no need to provide a special lifting mechanism. In this embodiment, the filling valve 7 is opened by pressing the cup 21 against the filling valve 7. However, in the case of the filling valve 7 which can be opened and closed without being pressed against the cup 21, The filling valve 7 may be opened in a state where the cup 21 and the filling valve 7 are separated from each other, and the cleaning liquid falling from the filling valve 7 may be collected by the cup 21.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the lock mechanism 133 is improved and the mechanism for moving the bottle base 106 up and down is improved. That is, in the first embodiment, the cam follower 52 is engaged with the opening / closing cam 53 to connect the bottle base 6 and the gripper 8, whereas in the present embodiment, the lever provided at the end of the rotary shaft 152 is used. The rotation shaft 152 is rotated in the forward and reverse directions by interlocking the 151 with an air cylinder 171 mounted on the lower surface of the bottle base 106. Thus, by moving all the air cylinders 171 forward or backward at the same time, the bottle base 106 and the gripper 108 are moved.
Can be integrally connected or released. Therefore, compared to the first embodiment, both members 10
It is possible to reduce the time required for the connection or disconnection work of 6,108. In the present embodiment, the bottle base 106
Is connected to the upper end of the cylindrical member 172, and the cylindrical member 172 is slidably penetrated through the guide hole of the rotary table 104. A vertical shaft 173 provided on the rotating body 103 is slidably fitted to the inner peripheral portion of the cylindrical member 172 while maintaining airtightness. The vertical shaft 173 is provided with a through-hole penetrating in the axial direction to form an air passage 173a. The upper end of the air passage 173a is opened in the cylindrical member 172 and the lower end of the air passage 173a. Is a conventionally known switching valve 174 and the supply passage 1 provided in the rotating body 103.
It communicates with a supply source of compressed air (not shown) via 03a.

The switching valve 174 has a valve body 1
By engaging with a switching lever (not shown) provided at a predetermined position on the movement locus of both ends of 74a, it is possible to move in the left-right direction of FIG.
4a, the air passage 173a communicates with the atmosphere through a discharge passage 103b formed in the rotating body 103 via a switching valve 174.
Reference numeral 06 is located at the lower end shown in FIG. On the other hand, when the valve element 174a is engaged with the switching lever and is moved to the left by a predetermined amount, the air passage 173a is connected to the switching valve 174 and the supply passage 10.
It communicates with the supply source of compressed air via 3a.
Therefore, at this time, the compressed air is supplied to the inside of the cylindrical member 172 via the air passage 173a, so that the bottle is connected to the upper end of the cylindrical member 172 and the pedestal is raised. In this embodiment, the cam follower 112 is provided on the outer peripheral portion below the cylindrical member 172, and the cam follower 11 is provided.
2, an elevating cam 114 that is continuous in the circumferential direction is provided above the second cam. Therefore, the bottle base 106 raised by the compressed air comes to a height position where the cam follower 112 is pressed against the lifting cam 114 from below. The cam curve of the lifting cam 114 in each of the moving sections A to D of the turntable 104 is set in the same manner as in the first embodiment. The other configuration is the same as that of the first embodiment.
The member numbers obtained by adding 00 are assigned. Such a second
According to this embodiment, the same operation and effect as those of the first embodiment can be obtained.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. 12. In the third embodiment, the lock mechanism 33 of the first embodiment is omitted. That is, in the present embodiment, the lock mechanism 33 is omitted, and the gripper 208 is moved up and down by the same lifting stroke in synchronization with the bottle base 206. For this purpose, an elevating cam 281 which is continuous in the circumferential direction is provided on the upper surface of the outer peripheral portion of the ring plate 237, and a roller 236 provided at the lower end of the gripper 208 is placed on the elevating cam 281.
The elevating cam 281 is used for the elevating cam 21 for the bottle base 206.
4 is set in accordance with the cam curve of FIG.
Even though 1 is located radially inward of the elevation cam 214 for the bottle base 206, the elevation stroke is adjusted to be the same in each moving section of the rotary table 204. In the third embodiment, since the lock mechanism 33 is omitted, the elevating device 223 is constituted only by the elevating mechanism 235 of the ring plate 237. Other configurations are the same as those of the first embodiment, and members corresponding to those of the first embodiment are given member numbers obtained by adding 200 to each member. According to this embodiment, the same operation and effect as those of the first embodiment can be obtained.

[0021]

As described above, according to the present invention, there is obtained an effect that the versatility of the rotary filling apparatus can be improved as compared with the conventional one.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of a main part taken along line II-II in FIG.

FIG. 3 is an enlarged plan view taken along an arrow III in FIG. 2;

FIG. 4 is a plan view showing the configuration of the member shown in FIG. 3;

FIG. 5 is a right side view of a main part of FIG. 2;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2;

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a plan view of a main part along a line VIII-VIII in FIG. 2;

FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8;

FIG. 10 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 11 is an enlarged sectional view of the member shown in FIG. 10;

FIG. 12 is a sectional view of a main part showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary filling device 3 Rotating body 6 Bottle base 7 Filling valve 8 Gripper 23 Lifting device 35 Lifting mechanism 33 Lock mechanism

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B67C 3/24

Claims (2)

(57) [Claims] 1. A rotating body provided rotatably, a plurality of bottle stands arranged in a circumferential direction of the rotating body and capable of mounting and lowering a container, and a plurality of bottle stands in the rotating body. Next to it
A plurality of grippers provided in contact with each other to grip a container on each of the bottles; and In the rotary filling device provided with a filling valve for filling the filling liquid into the container, each gripper is configured to be openable and closable and holds the container.
A pair of arms, and driving means for opening and closing the arms.
And each gripper described above is positioned adjacent to each of them.
It is configured to be able to move up and down with respect to the
Raise and lower the ripper all at once to the adjacent bin
Rotary filling device, characterized in that the lifting device is provided that. 2. The lifting device, wherein each gripper is located at an adjacent position.
2. The rotary filling device according to claim 1, further comprising an elevating mechanism for elevating and lowering the bin, and a lock mechanism for locking the elevating mechanism at a predetermined height position with respect to the bin.