JPH0597188A - Fluid constant charger - Google Patents

Abstract

PURPOSE:To adjust the intermittent driving time of a vessel transfer conveyor automatically but not manually and the opening or closing time of a charging valve. CONSTITUTION:Vessels C are transferred intermittently by a vessel transfer conveyor so that the vessels C stop in turn at the charging station S. A charging valve 12 is arranged at the upper part of the vessel transfer path in the charging station S. A duct 14 is jointed to the charging valve 12 to conduct the fluid by a pumping means. The flow rate of the fluid in the duct 14 is measured by a measuring means. The intermittent driving time of the vessel transfer conveyor 11 and the opening and closing time of the charging valve 12 are regulated by a controller so that a previously specified volume of fluid is charged from the charging valve 12 to the vessel C in accordance with the measured figures of the measuring means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to highly concentrated liquids such as beverages, pharmaceuticals, ice creams and gel compounds, highly viscous liquids,
The present invention relates to a filling device used to fill a container with a fluid such as a gas-containing liquid or a solid-containing liquid in fixed amounts.

[0002]

2. Description of the Related Art In general, a container transport conveyor for intermittently transporting containers so that the containers sequentially stop at a filling station, a filling valve disposed above a container transport path at a filling station, and a conduit to the filling valve. Filling devices are known which are provided with pumping means for pumping a fluid therethrough.

In the above filling device, the flow rate of the fluid in the conduit changes due to changes in environmental conditions such as temperature. When it is attempted to fill the container with a predetermined amount of fluid from the filling valve, the intermittent driving time of the container conveyor and the opening / closing time of the filling valve must be adjusted according to the change in the flow rate of the fluid in the conduit. It was done manually.

[0004]

As described above, manually adjusting the intermittent drive time and the opening / closing time of the filling valve of the container conveyor is not only inefficient, but also lacks in accuracy and filling. The quantity varied.

An object of the present invention is to provide a fluid metering and filling device capable of automatically adjusting the intermittent drive time of the container conveyor and the opening / closing time of the filling valve in response to changes in the flow rate of the fluid in the conduit. It is in.

[0006]

SUMMARY OF THE INVENTION A fluid metering and filling device according to the present invention comprises a container transporting conveyor for intermittently transporting containers so that the containers sequentially stop at a filling station, and a container transporting path at a filling station. A metering means for measuring the flow rate of the fluid in the conduit, and a metering means for measuring the flow rate of the fluid in the conduit, based on the measured value of the measuring means. The container is equipped with a control means for controlling the intermittent drive time of the container conveyor and the opening / closing time of the filling valve so that the container is filled with a predetermined amount of fluid from the filling valve. is there.

[0007]

In the fluid quantitative filling device according to the present invention, the measuring means for measuring the flow rate of the fluid in the conduit and the filling valve is filled from the filling valve to the container based on the measured value of the measuring means. As described above, since the control means for controlling the intermittent driving time of the container transport conveyor and the opening / closing time of the filling valve are provided, the flow rate of the fluid in the conduit is measured by the measurement means, and based on the measurement value of the measurement means. The control means controls the intermittent driving time of the container conveyor and the opening / closing time of the filling valve so that the container is filled with a predetermined amount of fluid from the filling valve.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> FIGS. 1 and 2 show an ice cream filling machine.

In this filling machine, a container transporting conveyor 11 for intermittently transporting the containers C so that the containers C are sequentially stopped at the filling station S, and a filling valve arranged above the container transporting path in the filling station S. 1, a conduit 14 having one end connected to the freezer 13 and the other end connected to the filling valve 12, and a bypass pipe 16 connected to the filling valve 12 in the vicinity thereof via a switching valve 15.

The container carrying conveyor 11 is a slat conveyor, and is composed of a large number of slat 22 with container holding holes, which are held by a chain hung on a sprocket 21 and hold a container C at its rim, and a sprocket. And a drive mechanism 23 for driving 21. The filling valve 12 includes a vertical cylindrical valve body 31, an elevating rod 33 having a plug 32 for opening and closing a lower end opening of the valve body 31 at a lower end, an opening / closing lever 34 having one end to which an upper end of the elevating rod 33 is connected, It has an operating rod 35 connected to the other end of the opening / closing lever 34.

In the freezer 13, the ice cream material, which is a compressive fluid containing bubbles, is adjusted and cooled to a level where the ice cream material has a viscosity almost equal to that of the soft cream. The cooled ice cream material is sent to the filling valve 12 through the conduit 14 by the pressure feeding means (not shown), and is filled into the container C fed from the filling valve 12 directly below the fixed amount by a fixed amount. Further, when starting the filling operation, until the temperature of the device such as the conduit 14 stabilizes, the ice cream material sent through the conduit 14 is not sent to the filling valve 12 and is bypassed by the bypass pipe 16 to the same temperature. The switching valve 15 is switched so as to be sent to the filling valve 12 for the first time after the stable state becomes stable.

From the freezer 13, the ice cream material is continuously fed into the conduit 14. When the filling valve 12 is closed, the ice cream material delivered into the conduit 14 has no place to go, but the compression of the ice cream material allows for continuous delivery from the freezer 13.

A mass flowmeter 41 is provided in the conduit 14 between the freezer 13 and the switching valve 15. The mass flow meter 41 is
An analog signal corresponding to the flow rate (mass) of the ice cream material flowing in the conduit 14 is output.

The details of the drive mechanism 23 are shown in FIG. The output signal of the flow meter 41 is input to the transmitter 42. The transmitter 42 converts the analog signal from the flow meter 41 into a high frequency signal and transmits it to the servo driver 43.
The servo driver 43 controls the rotation speed of the servo motor 44. The servo motor 44 drives the conveyor sprocket 21 via the speed reducer 45 and the index 46. At the same time, the reduction valve 45 drives the filling valve cam 47, and the filling valve cam 47 rotates 360 degrees, so that the filling valve 12 is opened and closed only once.

In the above, since the ice cream material is conveyed under pressure, there is no risk that the bubbles contained in the ice cream material will be destroyed.

Here, a specific example of filling the container C with 250 g of ice cream will be described.

If the manufacturing capacity of the filling machine is 6000 pieces / hour, the flow rate of the filling material is 250 g × 6000 pieces / hour / 60 min = 25000 g / min = 25 kg / min.

The servomotor 44 rotates 10 times to rotate the conveyor 11
Are driven one pitch, and one container is manufactured during this period. The filling valve 12 is opened by 210 degrees while the filling valve cam 47 rotates 360 degrees. Now,
The rotation speed of the motor required to manufacture a container of 6000 pieces / hour is 6000 pieces / hour / 60 min × 10 rotations = 1000 rpm.

120 times for one rotation of the servo motor 44.
If 00PLS is required, set the servomotor 44 to 100
To rotate at a speed of 0 rpm, 1000 rpm x 12000 PLS = 12000000 PLS
A PLS of / min is required.

The flow meter 41 is set so that the transmitter 42 outputs PLS of 10000 Hz at a flow rate of 60 Kg / min.

Then, at a flow rate of 25 Kg / min, 10000 HZ x (25 Kg / min ÷ 60 Kg / min) x 60 se
The PLS of c = 250,000 PLS / min is the transmitter 42
Is output from.

Therefore, the setting of the servo driver 43 may be set to 12000000PLS / 250,000PLS = 48, that is, the motor 44 rotates at 48 times the input.

During the filling operation, the flow rate from the freezer 13 is
fluctuate. It is considered that the reason is that when the air is mixed in the ice cream, the air cannot be uniformly stirred, and the mixed air becomes large and small bubbles, which changes the volume. Another cause is freezers
When the temperature of the ice cream in 13 changes, the volume of the ice cream may change.

The volume fluctuates due to the above reasons, and for example, the volume is 5
%, The flow rate decreases by 5%, assuming that the pressure of the freezer 13 is constant. Then, the number of PLS output from the flow meter 41 via the transmitter 42 is reduced by 5%, and the rotation speed of the motor 44 is reduced by 5%. As a result, the time for which the conveyor 11 is driven by one pitch and the time for which the filling valve 12 is opened are delayed by the decrease in the rotation speed of the motor 44, and the filling amount remains constant without change. Contrary to the above, when the volume is reduced, the rotation speed of the motor 44 is increased, and the time for which the conveyor 11 is driven by one pitch and the time for which the filling valve 12 is opened are increased. Absent.

Example 2 A filling machine shown in FIG. 3 is used to fill a non-compressible fluid such as jam or fruit sauce, which has a high viscosity but not a compressible fluid.
In this filling machine, instead of the filling valve 12, a three-way switching rotary type filling valve 51 is used, and when the filling is stopped, the fluid is returned to the fluid tank 53 by the return pipe 52. Further, the fluid tank 53 is provided with a pressure pump 54.

Similar to the first embodiment, a concrete example of the filling operation will be described. The container C is filled with 250 g of fluid. The manufacturing capacity of the filling machine is 6 as in the first embodiment.
It is 000 pieces / Hr.

In the second embodiment, the filling valve cam 47 has 36
During 0 degree rotation, the fill valve 51 is opened by 144 degrees, otherwise the fluid is returned to the tank 53.

Therefore, the flow rate of the packing is 250 g × 6000 pieces / Hr ÷ 60 min × (360 degrees ÷ 144 degrees) = 62500 g / min = 62.5 Kg / min The specifications of the flow meter 41 and the servo motor 44 are Same as Example 1.

Then, at a flow rate of 62.5 Kg / min, 10000 HZ × (62.5 Kg / min ÷ 60 Kg / min) × 6
PLS of 0 sec = 625,000 PLS / min is output from the transmitter 42.

Therefore, the setting of the servo driver 43 is set to 12000000PLS / 625000PLS = 19.2, that is, the motor 44 rotates at 19.2 times the input.

In the second embodiment, in order to prevent the liquid from dripping from the filling valve 51, an opening / closing means such as the plug 32 of the filling valve 12 of the first embodiment may be provided at the discharge port of the filling valve 51.

In each of the above embodiments, a mass flowmeter is used, but a volumetric flowmeter may be used instead.

[0034]

According to the present invention, the flow rate of the fluid in the conduit is measured by the measuring means, and the container conveyer conveys the predetermined amount of fluid from the filling valve into the container based on the measured value of the measuring means. Since the intermittent driving time and the opening / closing time of the filling valve are controlled by the control means, the intermittent driving time of the container conveyor and the opening / closing time of the filling valve can be automatically adjusted without the need for manual adjustment.

[Brief description of drawings]

FIG. 1 is an arrangement configuration diagram of a filling device according to the present invention.

FIG. 2 is a block diagram of a drive mechanism of the filling device.

FIG. 3 is an arrangement configuration diagram of another filling device according to the present invention.

[Explanation of symbols]

 11 Conveyor 12 Filling valve 14 Conduit 41 Flow meter 44 Servomotor C Container S Filling station

Claims (1)

[Claims] 1. A container transfer conveyor for intermittently transferring the containers C so that the containers C are sequentially stopped at the filling station S.
11, a filling valve 12 arranged above the container transport path at the filling station S, and a conduit to the filling valve 12.
In a fluid quantitative filling device provided with a pumping means for pumping fluid through 14, a measuring means for measuring the flow rate of the fluid in the conduit 14 and a filling valve 12 from the filling valve 12 to the container C in advance based on the measurement value of the measuring means. A fluid quantitative filling device, comprising: control means for controlling the intermittent drive time of the container transport conveyor 11 and the opening / closing time of the filling valve 12 so that a predetermined and predetermined amount of fluid is filled.