JP3848705B2 - Rotary container filling machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary container filling machine that fills a container with a filling liquid.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various rotary container filling machines that have a rotating machine portion that is rotatably supported on a base and that fills a placed container with a filling liquid are known. The rotary container filling machine shown in FIG. 3 is one of them.
[0003]
In the figure, 111 is a lower machine part, 115 is an upper machine part rotatably supported on the lower machine part, and 117 is an annular table fixed to the lower outer periphery of the upper machine part 115. , 118 is a container lifting means disposed on the table 117 at equal intervals in the circumferential direction, 120 is a cross beam of the upper machine part 115 whose height position with respect to the table 117 can be adjusted, and 119 is a push-up drive of the cross beam 120 121, 121 is a driving gear common to the push-up drive device 119, 122 is a liquid storage tank connected to the cross beam 120, and 123 is arranged at equal intervals in the liquid storage tank 122 as a pair with the container lifting means 118. A filling unit for filling the container with the liquid, 131 is a protruding part provided to protrude downward in the center part of the cross beam 120, 146 is a casing fixed to the upper part of the protruding part 131, 53 is a rotary distributor, 57 is Ke Through a plate having a central communication opening (not shown) on the single 146 is a stationary part of the rotary distributor 53 which is placed.
[0004]
A control unit (not shown) is accommodated in the projecting portion 131, and power is supplied to the drive device and the control unit for performing the filling operation via the rotary distributor 53.
112 is a front table for entering and discharging the container, 74 is an external control panel, 65 is a support pipe made up of a column 64 and an arm 63 and guiding control signal lines and the like from the external control panel 74 to the rotary distributor 53. , 58, 59, and 60 are inlet means such as a power line and a signal line to the drive unit and control unit of the upper machine part 115, 85 is a rotary central delivery valve device fixed to the cross beam 120, 86 The stationary parts 87, 88 and 89 of the central delivery valve device 85 are pipes for liquid, compressed gas and return gas connected to the stationary part 86, and 97 is a linear encoder fixed to the stationary part 86. The liquid is supplied to the liquid storage tank 22 via the central delivery valve device 85.
[0005]
The container transported by the front table 112 is placed on the rotating table 117, lifted from below by the container lifting means 118, sandwiched between the filling unit 123 and filled with the liquid while rotating, It goes down and sent to the next process.
[0006]
When starting filling or changing the type of filling liquid (mold change), a filling operation condition including setting data is sent from the external control panel 74 to the control unit in the projecting portion 131 via the rotary distributor 53 and controlled. The operating status required for the operation is sent from the control unit in the protrusion 131 to the external control panel 74.
[0007]
When it is necessary to change the vertical distance (height) between the table 117 and the liquid storage tank 122 at the time of mold change, the push-up drive device 119 is driven by the gear 121 and the cross beam integrated with the liquid storage tank 122 is obtained. 120 is raised or lowered to adjust the height.
For height adjustment, height information detected by the linear encoder 97 provided in the stationary portion 86 of the central delivery valve device 85 is sent to the control unit in the projecting portion 131, and the control unit sends this information and the external control panel 74. This is done by comparing the indicated values.
[0008]
[Problems to be solved by the invention]
However, in the conventional example, in the height adjustment of the liquid storage tank 122 performed at the time of changing the mold, the raising / lowering position of the cross beam 120 is installed in the stationary part 86 of the lower machine part 111 in the central part away from the push-up drive device 118. Since the linear encoder 97 performs measurement, an error factor due to the lower machine part 111 is added to the adjustment of the height between the liquid storage tank 122 and the table 117 provided in the upper machine part 115, There is a problem that accuracy is lowered.
[0009]
In addition, since the transmission of the information signal between the control panel 74 fixedly installed outside and the control unit installed and rotated on the upper machine part 115 is performed by the contact-type rotary distributor 53, the rotational contact by friction is performed. This is a cause of malfunction due to wear and noise of the parts.
[0010]
In view of the above-described circumstances, an object of the present invention is to provide a rotary container filling machine capable of adjusting the height of a liquid storage tank performed at the time of mold change with high accuracy.
[0011]
Another object of the present invention is to provide a rotary container filling machine that does not contact and exchange signals between the external control device and a rotating machine part that fills a container placed with a filling liquid. And
[0012]
In addition, another object of the present invention is a rotary type in which the number of signals between rotating machine parts for filling a container placed with an external control device and a filling liquid is reduced as much as possible, and the influence of noise between the two is reduced. It is to provide a container filling machine.
[0013]
In addition, another object of the present invention is to make the transmission and reception of signals between the external control device and the rotating machine portion that fills the container placed thereon non-contact and to reduce the number of signals between the two as much as possible. An object of the present invention is to provide a rotary container filling machine capable of reducing the influence of noise between the two and driving the rotary machine part with high accuracy.
[0015]
[Means for Solving the Problems]
The present invention described below includes a container placing means (container lifting means) 18 for placing a container, a filling unit 23 connected to a filling liquid storage tank 22 and filling the container with the filling liquid, and the filling unit 23. The rotating machine part (upper machine part) 15 is provided with a lifting / lowering means (push-up drive device) 19 that lifts and lowers, and a movement amount detection means (rotary encoder) 5 that detects the movement amount of the lifting / lowering means 19.
[0016]
That is, the rotary encoder 5 that engages with the drive screw shaft of the push-up drive device 19 that raises and lowers the liquid storage tank 22 with respect to the table 17 provided at the lower part of the upper mechanical portion 15 and counts the number of rotations of the screw shaft. The rotary machine sequencer unit 25 that is provided in the upper machine portion 15 and that processes the signal from the rotary encoder 5 is provided in the internal control device 2. Since the rotary encoder 5 measures the distance between the filling unit 23 provided in the machine part 15 and the container placing means (container lifting means) 18 for placing the container, an error factor due to the lower machine part 11 is eliminated. Accurate height adjustment can be performed.
[0017]
And the present invention is a rotary container filling machine having a rotating machine part that is rotatably supported by a base and fills a placed container with a filling liquid.
Container placing means for placing the container, a filling unit connected to the filling liquid storage tank and filling the container with the filling liquid, lifting means for raising and lowering the filling unit, and movement for detecting the amount of movement of the lifting means While providing the amount detection means and the internal control device for driving these in the rotating machine part,
The rotating machine portion includes an E / O converter that is electrically connected to the external control device provided and fixed outside the rotary container filling machine, and an O / E conversion that is electrically connected to the internal control device. An optical rotary joint formed so that an optical signal can be transmitted between the E / O converter and the O / E converter,
The external control device enables the liquid filling status to be monitored via the sequence unit, and
Wherein the start command from the external control device, in accordance with a program stored in the rotating machine part in providing internal control provided in the device rotator sequencer unit, control of the rotating machine part is made, in particular type If the height of the container is different at the time of replacement, the filling operation condition including the setting data is sent from the external control device via the optical rotary joint to the rotating body sequencer unit in the internal control device provided in the rotating machine part for storage. After that, according to the start command from the external control device, the height information is obtained while adjusting the height of the filling unit by driving the raising / lowering means for raising and lowering the filling unit according to the program stored in the rotating body sequencer unit. This information is sent to the rotating body sequencer unit, and this information is externally transmitted from the rotating body sequencer unit via the optical rotary joint. Is transmitted to the control device, as compared to the monitor while information sent an instruction value in the external control device, characterized by being configured to stop the height adjustment at these values match.
[0018]
This onset Ming, the driving operation of the rotating machine part (upper machine part) 15, an external control device 1 provided outside the rotating container filling machine 10, provided in the rotating machine part 15, the outer Control is performed by the internal control device 2 that exchanges signals with the control device 1. Specifically, according to the rotating body sequencer unit 25 provided in the internal control device 2 according to the program stored in the unit 25 and the data stored in the unit 25 from the external control device 1 in advance. The rotating machine portion 15 is controlled by a start command from the external control device 1.
[0019]
Therefore, the external control device 1 does not perform remote operation by itself except for changing or correcting the program stored in the unit 25 before issuing the start signal or before the liquid filling operation. The liquid filling operation is performed by the unit 25, and the liquid filling state can be monitored via the unit 25.
[0020]
Therefore, the rotary container filling machine in which the number of signals during operation between the external control device 1 and the rotating machine part 15 for filling the container placed thereon with the filling liquid is reduced as much as possible, and the influence of noise between them is reduced. Can be provided.
[0021]
The present onset Ming, the E / O converter 6a to the external control apparatus 1 and the electrical connections fixed, O / E converter 6b electrically connected to the internal control unit 2 which operates by the drive of the upper machine part 15 And an optical rotary joint 6 formed so that an optical signal can be transmitted between the E / O converter 6a and the O / E converter 6b. Transmission and reception of signals between the rotating machine parts (upper machine parts) 15 for filling the liquid can be made non-contact, and accuracy degradation due to the influence of noise can be prevented.
[0022]
The present onset Ming, a container placing means for placing the said container,
A filling unit connected to a filling liquid storage tank and filling the container with the filling liquid;
Elevating means for elevating and lowering the filling unit;
A moving amount detecting means for detecting the moving amount of the elevating means and sending information to the internal control device is provided in the rotating machine portion;
An E / O converter electrically connected to the fixed external control device, and an O / E converter electrically connected to the internal control device that is driven, the E / O converter and the O / E conversion The invention is configured to transmit information between the external control device and the internal control device via an optical rotary joint formed so that an optical signal can be transmitted between the devices .
[0023]
According to this structure, the concrete, the rotary body sequencer unit 25 provided in the internal control device 2, according to pre-program that is stored in the unit 25, the start command from the external controller 1 Thus, the rotating machine part 15 is controlled. Accordingly, the external control device 1 generates a start signal or does not allow the remote control by itself except for the change or correction of the program stored in the unit 25 before the liquid filling operation. A liquid filling operation is performed, and the liquid filling state can be monitored via the unit 25.
[0024]
Then, an optical signal is transmitted between the E / O converter 6a that is electrically connected to the fixed external control device 1 and the O / E converter 6b that is electrically connected to the internal control device 2 that is operated by driving the upper machine portion 15. Since the optical rotary joint 6 formed so as to be able to transmit is provided, the transmission and reception of signals between the external control device 1 and the rotating machine part (upper machine part) 15 for filling the placed container with the filling liquid is performed without contact. In addition, the number of signals between the external control device 1 and the rotating machine part 15 for filling the container placed on the container with the filling liquid can be reduced as much as possible to reduce the influence of noise between them. A machine can be provided.
[0025]
Furthermore, container placing means (container lifting means) 18 for placing the container, a filling unit 23 connected to the filling liquid storage tank 22 and filling the container with the filling liquid, and an elevating means for moving the filling unit 23 up and down. The (push-up drive device) 19 and the movement amount detection means (rotary encoder) 5 for detecting the movement amount of the elevating means 19 are provided in the rotating machine portion (upper machine portion) 15, so that filling performed at the time of mold change In the height adjustment of the unit 23, the rotary encoder 5 measures the distance between the filling unit 23 provided in the rotating machine portion 15 and the container placing means (container lifting means) 18 for placing the container. An error factor due to the lower machine portion 11 is added, and the height can be accurately adjusted without affecting the accuracy.
[0026]
Therefore, according to this configuration, the transmission and reception of signals between the external control device and the rotating machine part that fills the container placed with the filling liquid is made non-contact, and the number of signals between the two is reduced as much as possible. It is possible to provide a rotary container filling machine that can reduce the influence of the noise and can drive the rotary machine part with high accuracy.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified. It is just an example.
[0028]
A rotary container filling machine according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view of the container filling machine 10, and FIG. 2 is a schematic view showing a control system.
In FIG. 1, a container filling machine 10 is composed of a lower machine part 11 acting as a base, and an upper machine part 15 arranged so as to be rotatable above the lower machine part 11. 10 is controlled by the external control device 1 connected through the wiring pipe 3.
[0029]
A table 17 formed in a donut shape on the upper surface of the lower machine part 11 is rotatably arranged in the upper machine part 15, and a plurality of container positioning holes 17 a are formed in the table 17.
Immediately below the hole 17a, a container lifting means (placement means) 18 for placing the container 24 and lifting it to a predetermined height is disposed, and the container 24 is sent into the hole 17a of the table 17 by a mechanism not shown. When it comes, the container 24 is lifted up to a predetermined height by the container lifting means 18.
[0030]
The upper machine portion 15 is supported by a bearing (not shown) on a portion (not shown) that is rotatably arranged on the lower machine portion 11, and four drive screw shafts 4 are erected at 90 ° intervals. Yes. The screw shaft 4 is connected to a motor (not shown) and is arranged to be rotatable left and right by the rotation of the motor.
[0031]
On the other hand, the cross beam 20 is formed with a screw hole into which the drive screw shaft 4 is screwed. The cross beam 20 is screwed with the screw hole and the drive screw shaft 4. The height adjustment of the cross beam 20 is performed by rotating the drive screw shaft 4, and the drive screw shaft 4 and the motor constitute a push-up drive device 19.
Further, a rotary encoder 5 that detects the rotational speed by engaging with the drive screw shaft 4 is disposed in the cross beam 20, and the vertical movement distance is calculated by detecting the rotational speed. The height of the cross beam 20 with respect to the surface of the table 17 can be adjusted by rotating.
[0032]
A liquid storage tank 22 formed in a donut shape is provided in the cross beam 20, and a plurality of filling units 23 for filling the container 24 with liquid in the lower part of the liquid storage tank 22 have a spout downward. When the container 24 is filled with a liquid, the container 24 is lifted to a predetermined height by the container lifting means 18 so that the spout of the container 24 and the spout of the filling unit 23 are matched. It is configured.
[0033]
An internal control device 2 that controls the operation of the upper machine portion 15 and an optical rotary joint 6 provided on the upper portion of the internal control device 2 are arranged at the center of the cross beam 20, and the external control device 1 and the internal Information is exchanged between the control devices 2 through the wiring tube 3 and the optical rotary joint 6.
[0034]
As shown in FIG. 2, the external control device 1 includes a control sequencer unit 1a and a communication sequencer unit 1b, and a signal from the control sequencer unit 1a is converted into a communication signal by the communication sequencer unit 1b. The signal is sent to the optical rotary joint 6 and the signal from the optical rotary joint 6 is transmitted to the control sequencer unit 1a through the reverse path.
[0035]
The optical rotary joint 6 is for exchanging signals between the internal control device 2 provided in the upper mechanical part 15 that is rotationally driven and the external control device 1 that is stationary and fixed. The optical transmission unit composed of the E / O converter 6a and the optical transmission unit composed of the rotating O / E converter 6b are optically coupled via an optically configured joint mechanism.
[0036]
The optical rotary joint 6 is connected to the rotating body sequencer unit 25 in the internal control device 2.
The rotary sequencer unit 25 stores a program for controlling the driving of the upper machine portion 15, and one of the input terminal groups 25i is a sensor (not shown) that detects whether or not the transfer of the container 24 to the next process is completed. In addition to being connected, one of the output terminal groups 25o is connected to a motor (not shown), and the rotation of the upper machine portion 15 is controlled via the motor. Specifically, the upper machine portion 15 is started by a start signal from the external control device 1 and the stop signal from the external control device 1 or the filling of the liquid into the container 24 is completed, and the final container 24 is processed in the next process. The rotation of the upper machine part 15 stops when the transfer of the above is completed.
[0037]
One of the input terminal groups 25i of the rotating body sequencer unit 25 is connected to a sensor (not shown) that detects completion of liquid filling the container 24, and one of the output terminal groups 25o is connected to a plunger (not shown). The operation of the container lifting means (mounting means) 18 is controlled by placing the container 24 through the plunger, lifting the container 24 to a predetermined height, and lowering the liquid 24 after filling.
[0038]
One input terminal group 25i is connected to the rotary encoder 5, and one output terminal group 25o is connected to a motor (not shown) so that the drive screw shaft 4 can be rotated via the motor. Yes. Therefore, the height of the cross beam 20 with respect to the table 17 can be adjusted by rotating the drive screw shaft 4 when changing the mold.
[0039]
The amount of information exchanged between the rotating body sequencer unit 25 and the external control device 1 is not so large, and a communication protocol can be created in the unit 25. Therefore, a special communication unit is provided in the internal control device 2. Since it is not necessary, there are advantages that it is inexpensive and the program can be easily changed and modified.
[0040]
Next, the operation of the container filling machine configured as described above will be described.
When the container 24 is filled with the liquid, the filling operation conditions are sent from the external operating device 1 to the rotary sequencer unit 25 in the internal control device 2 and stored in advance.
The container 24 conveyed by a mechanism (not shown) is placed on the rotating table 17, and the bottom of the container 24 falls into the opening 17a and is positioned.
[0041]
Then, it is lifted by the container lifting means 18 from below, and is sandwiched between the filling unit 23, the outlet of the container 24 and the outlet of the filling unit 23 match, and the liquid is filled while rotating, It goes down and sent to the next process.
The information detected by the input terminal group 25i of the rotating body sequence unit 25 described above during these operations is transmitted to the external control device 1 via the optical rotary joint 6, and can be monitored and data can be stored.
[0042]
When the height of the container 24 is different at the time of mold change, the filling operation condition including the setting data is sent from the external control device 1 to the rotating body sequencer unit 25 in the internal control device 2 and stored.
Next, the drive screw shaft 4 is rotated by a start signal from the external control device 1, and height information detected by the rotary encoder 5 is sent to the rotary sequencer unit 25, and this information is transmitted from the rotary sequencer unit 25 to the optical rotary. The information transmitted to the external control device 1 via the joint 6 and sent while being monitored by the external control device 1 is compared with the indicated value, and the rotation of the drive screw shaft 4 is stopped when the two values match.
[0043]
As described above, since the start, stop, height setting, and the like of the raising / lowering of the cross beam 20 at the time of mold change is performed while monitoring in the external control device 1, it is safer than performing automatically on the upper machine portion 15. And can be done accurately.
[0044]
As described above in detail, in the present embodiment, the driving operation of the rotating machine part (upper machine part) is provided in the external control device provided outside the rotating container filling machine and the rotating machine part. It is configured to be controlled by an internal control device that exchanges signals with the external control device.
[0045]
More specifically, the rotating body sequencer unit 25 provided in the internal control device, in accordance with the data stored in the unit 25 from the external control device in advance and the stored program, from the external control device. Since the rotating machine part is controlled by a start command, the external control device issues a start signal or does not change or modify the program stored in the unit 25 before the liquid filling operation. The liquid filling operation is performed by the unit 25 without performing a remote operation by itself, and the liquid filling state can be monitored via the unit 25.
[0046]
Accordingly, a rotary container filling machine is provided in which the number of signals during operation between the external control device and the rotating machine portion that fills the container placed with the filling liquid is minimized, and the influence of noise between the two is reduced. can do.
[0047]
In addition, the present embodiment includes an E / O converter that is electrically connected to an external control device that is stationary and fixed, and an O / E converter that is electrically connected to an internal control device that operates by driving the upper machine part. Since the optical rotary joint 6 is formed so that an optical signal can be transmitted between the E / O converter and the O / E converter, the external control device and the container for mounting the filling liquid are rotated. The transmission and reception of signals between the machine parts (upper machine parts) can be made non-contact, and a reduction in accuracy due to the influence of noise can be prevented.
[0048]
Moreover, this Embodiment is connected with the container mounting means (container lifting means) which mounts a container, a filling liquid storage tank, and fills a container with a filling liquid, and raises / lowers this filling unit. Since the raising / lowering means (push-up drive device) and the moving amount detecting means (rotary encoder) for detecting the moving amount of the raising / lowering means are provided in the rotating machine part (upper machine part), In the height adjustment, the distance between the filling unit provided in the rotating machine part and the container placing means (container lifting means) for placing the container is measured by the rotary encoder. Is eliminated, and an accurate height adjustment can be performed.
[0049]
Therefore, in the present embodiment, the transmission and reception of signals between the external control device and the rotating machine portion that fills the placed container with the filling liquid is made non-contact, and the number of signals between the two is minimized. It is possible to provide a rotary container filling machine that can reduce the influence of noise during the operation and drive the rotary machine part with high accuracy.
[0050]
【The invention's effect】
As described above, the present invention includes container placing means (container lifting means), a filling unit connected to the filling liquid storage tank and filling the container with the filling liquid, and an elevating means for raising and lowering the filling unit. Since the moving amount detecting means for detecting the moving amount of the elevating means is provided in the rotating machine part, the filling unit and the container provided in the rotating machine part are used for adjusting the height of the filling unit at the time of mold change. Since the distance to the mounting means is measured by the movement detection means provided in the rotating machine part, the error factor due to the lower machine part is eliminated, enabling highly accurate position control and accurate height adjustment. A rotary container filling machine can be provided that can be performed. In addition, according to the present invention, since information exchange between the fixed external control device and the rotating rotator control device is performed via the non-contact type optical transmission unit, the conventional contact type transmission system. Thus, it is possible to provide a rotary container filling machine that can eliminate the adverse effects due to wear and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view of a rotary container filling machine according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a control system.
FIG. 3 is a cross-sectional view of a main part of a conventional rotary container filling apparatus.
[Explanation of symbols]
1 External control device 2 Internal control device 4 Drive screw shaft 5 Rotary encoder 6 Optical rotary joint 10 Rotary container filling machine 11 Lower machine part (base)
15 Upper machine part (rotary machine part)
17 Table 18 Container lifting means (mounting means)
19 Push-up drive device 20 Cross girder 22 Liquid storage tank 23 Filling unit 25 Rotating body sequencer unit

Claims (2)

In a rotary container filling machine having a rotating machine part that is rotatably supported on a base and fills a placed container with a filling liquid,
Container placing means for placing the container, a filling unit connected to the filling liquid storage tank and filling the container with the filling liquid, lifting means for raising and lowering the filling unit, and movement for detecting the amount of movement of the lifting means While providing the amount detection means and the internal control device for driving these in the rotating machine part,
The rotating machine portion includes an E / O converter that is electrically connected to the external control device provided and fixed outside the rotary container filling machine, and an O / E conversion that is electrically connected to the internal control device. An optical rotary joint formed so that an optical signal can be transmitted between the E / O converter and the O / E converter,
Together before Kigaibu controller to be able to monitor the filling status of the liquid through the sequence unit,
If the container height is different at the time of mold change, the filling operation condition including the setting data is sent from the external control device via the optical rotary joint to the rotary body sequencer unit in the internal control device provided in the rotary machine part and stored. After that, according to the start command from the external control device, the height information is obtained while adjusting the height of the filling unit by driving the raising / lowering means for raising and lowering the filling unit according to the program stored in the rotating body sequencer unit. This information is sent to the rotating body sequencer unit, this information is transmitted from the rotating body sequencer unit to the external control device via the optical rotary joint, and the information sent while monitoring in the external control device is compared with the indicated value. A rotary container filling machine characterized in that the height adjustment is stopped at the coincidence . Height information of the filling unit obtained while the height adjustment is determined by the movement amount detecting means provided the distance between the filling unit and the container mounting means provided in the rotating machine part to rotate the machine parts The rotary container filling machine according to claim 1, wherein the information is information obtained in the above manner.

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