JPH05254596A - Filling valve for rotary type liquid filling machine - Google Patents

Abstract

PURPOSE:To improve the work efficiency by making it possible to perform the adjustment of a seasoning quantity for a filling liquid, which is done in response to the change of the type of the filling liquid or the size of a container, etc., simultaneously with the filling work, quickly and assuredly. CONSTITUTION:A vent tube 10 of each filling valve main body 1 is vertically moved by a vent cam 18 and vent lever 16, by setting and controlling the rotation of a rotary type liquid filling machine by providing a vent servo motor 16, which is controllable by a servo controller 42, for each filling valve main body 1; and by making it possible to vertically adjust the height position of a float valve which is provided at the lower end of the filling valve main body 1, the adjustment of a seasoning quantity for a filling liquid is automatically and quickly performed while performing the filling work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling valve of a rotary liquid filling machine for filling a container with a beverage.

[0002]

2. Description of the Related Art Recently, with the diversification of beverage types and their filling containers, it is the current situation that the flavor level in the container must be adjusted frequently. However, this flavor level should be adjusted automatically. Is proposed in Japanese Examined Patent Publication No. 62-54717.

[0003]

However, in the above method, one set of adjusters corresponds to the amount adjustment terminals of each filling valve, so that the filling level of many filling valves of the rotary filling machine can be changed. For this, adjustment must be performed while rotating the filling machine in advance prior to the filling work, and it is not swift in the adjustment operation when it is necessary to adjust with multiple liquid species and at high frequency. There is a problem that It is an object of the present invention to provide a filling valve for a rotary liquid filling machine, which aims to improve such defects and to quickly and surely adjust the content level to stabilize product quality and improve productivity. Is to

[0004]

In order to achieve the above object, the present invention transmits a vent cam for controlling the descending point of a float valve provided at the lower end of the vent tube and the rotational displacement of the vent cam to the vent tube. A lever mechanism,
An appropriate drive means for rotating the set rotation angle of the vent cam is installed for each filling valve body, and as the drive means, it is preferable to use a servomotor controlled by a servo controller. is there.

[0005]

[Operation] The rotation of the vent cam provided for each filling valve main body is controlled and set in advance in accordance with the type of the filling liquid, the size of the container, etc., and when the filling liquid is filled, the rotation of the vent cam and the lever mechanism are set. The vent tube is lowered through the flow tube to hold the flow valve at the lower end of the vent tube at a predetermined adjusting position to automatically control the amount of the filling liquid contained in the container.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.
The filling valve body 1 of the rotary liquid filling machine is composed of an upper case 3 attached to a rotating filling valve mounting base 2 and a lower case 4 fixed to the lower portion thereof.
A slide case 6 fitted with a seal member 5 for sealing the container to be filled is fitted on the outer peripheral part of the device by an elevating mechanism 7 so as to be vertically movable.

A vent tube 10 having a vent passage 8 at the center and a float valve 9 at the lower end for determining the intake level is provided at the center of the filling valve body 1, and the upper part of the vent tube 10 is provided. The vent engagement member 11 is fixed to the outside and the vent tube 10 is provided.
At the lower end of the valve stem 12 that is slidably fitted to the outside, a flow valve 13 that controls the filling of the filling liquid is provided, and in the middle, a piston 14 that is fitted in the upper case 3,
Further, valve engaging members 15 are provided at the upper ends, respectively.

A vent lever 16 is engaged with an upper portion of the vent engaging member 11, and the vent lever 16 is operated by a vent cam 18 controlled by a vent servomotor 17 installed for each filling valve body 1. The vent engaging member 11 is driven by the vent servomotor 17 through the vent cam 18 and the vent lever 17.
Is pressed downward against the vent spring 20 to lower the vent tube 10, and the valve engaging member 15
The valve lever 23 operated by the valve cam 22 controlled by the valve servo motor 21 installed for each filling valve body 1 is engaged with the valve stem 24 so that the valve stem 12 can be lowered against the valve spring 24. Has been done.

An upper end of the upper case 3 is sealed by a case cap 25 to form a differential chamber 26 between the upper case 3 and the piston 14, and the differential chamber 26 communicates with a chamber supply valve 27 and a chamber exhaust valve 28, respectively. A flow port 29 for introducing the filling liquid from the tangential direction is provided below the piston 14 of the upper case 3, and the filling liquid from the liquid storage tank 30 is distributed to the distributor 31 and the branch pipe 3.
It is configured so that it can be introduced into the main flow passage 33 of the filling valve body 1 via 2 and supplied to the flow valve 13 portion.

Further, in the lower case 4, a carbon dioxide gas supply passage 34 for supplying carbon dioxide gas to a container to be filled and a sniff passage 35 for releasing the pressure in the filled container to the atmosphere.
Are provided, the carbon dioxide gas supply passage 34 is connected to a carbon dioxide gas supply chamber 37 via a carbon dioxide gas supply valve 36, and the sniff passage 35 is a sniff valve 38.
Via the vent valve 40 so that the gas in the container being filled can be exhausted at the upper end of the vent passage 8 of the vent tube 10. It communicates with the pressurized gas phase portion 41 above the liquid storage tank 30.

However, the vent servomotor 17 is rotated by an angle corresponding to the number of forward rotation pulse signals or reverse rotation pulse signals from the servo controller 42, which has been selected and set according to the type of filling liquid, the size of the container, and the like. Also, the cam stroke of the vent cam 18 increases in proportion to the rotation angle of the vent servomotor 17 at the time of forward rotation, and the vent lever 16 causes the vent engaging member 11 to move to the vent spring 20.
The vent tube 10 is pushed downward against the above, and the vent tube 10 is pushed downward. If the vent servomotor 17 rotates in the reverse direction, the vent tube 10 returns to the old position, contrary to the above.

When the valve servomotor 21 also rotates in the normal direction, the cam stroke of the valve cam 22 decreases in proportion to the rotation angle, and the valve engagement is urged downward by the valve spring 24 via the valve lever 23. The member 15 can be pushed downward to lower the valve stem 12, and when it is rotated in the reverse direction, the valve stem 12 is returned to the old position, and the operation command during the filling process is the sequencer 43.
This sequencer 43 is performed by the chamber supply valve 27, the carbon dioxide gas supply valve 36, the sniff valve 38, the chamber exhaust valve 28, and the vent valve 40.
The operation command during the filling process is also performed.

Further, the gas pressures of the carbon dioxide gas supply chamber 37 and the pressurized gas phase portion 41 of the liquid storage tank 30 are set to the same pressure, and the pressure reducing valves 44.4 are used.
5, the liquid level in the liquid storage tank 30 is kept constant by controlling the discharge amount of the pump 46 by a signal from the liquid level control device, and the liquid level with respect to the filling valve body 1 flows by gravity. The necessary head pressure is secured.

Since the embodiment of the present invention is constructed as described above, the adjusting position of the float valve 9 and the flow valve 1 corresponding to the kind of the liquid to be filled or the size of the container.
The opening degree of 3 is stored in the servo controller 42 in advance as the number of pulses, and the slide case 6 is moved by the elevating mechanism 7 to the container A positioned on the container mounting table 47 which is rotated by the filling valve mounting base 2 during the filling operation. When the container A is closed by lowering the container A by the seal member 5, the sniff valve 38 and the carbon dioxide gas supply valve 36 are sequentially opened by the signal from the sequencer 43, and after the atmospheric air in the container A is exhausted, the sniff valve 38 is closed. After being pressurized with carbon dioxide, the carbon dioxide supply valve 36 is closed. Then, in response to a command from the sequencer 43, the vent servo motor 17 rotates the vent cam 18 by an angle corresponding to the preset number of pulses, the vent tube 10 is lowered via the vent lever 16, and the position of the float valve 9 is lowered in advance. Adjust to position.

Next, after the vent valve 40 is opened to make the pressurized gas phase portion 41 of the liquid storage tank 30 and the gas pressure in the container A the same, the differential chamber 2 which has been under atmospheric pressure until now.
6, the chamber supply valve 27 is opened to eliminate the pressure difference between the upper and lower portions of the piston 14.

Next, the valve servo motor 21 rotates the valve cam 22 in accordance with the preset number of pulses, and the valve lever 23 lowers the valve stem 12 via the valve engaging member 15 to open the flow valve 13 at a predetermined opening. The filling liquid flows down from the main flow passage 33 and the filling is started. Then, at the same time as the liquid surface water level in the container A gradually rises, the gas in the container A flows into the pressurized gas phase portion 41 of the liquid storage tank 30 from the vent passage 8 and is discharged to the outside from the exhaust valve 48. The water level of the filling liquid rises and the flow valve 9
And the vent passage 8 is closed, the replacement action of the filling liquid and the gas is stopped and the filling action is completed. Then, the valve servomotor 21 is reversely operated, the flow valve 13 is closed, and then the chamber supply valve 27 is closed and at the same time the chamber exhaust valve 28 is opened to release the gas pressure of the differential chamber 26 to the atmosphere to cause the upper and lower portions of the piston 14 to rise. A pressure difference is generated, and the flow valve 13 causes the main flow passage 3
3 is securely sealed, and the vent servomotor 17 is also reversely operated to pull the float valve 9 back into the valve stem 12, then the vent valve 40 is closed, and then the sniff valve 38 is opened to open the gas in the head space in the upper part of the container A. Is removed from the atmosphere and the container A and the seal member 5 are separated from each other to complete the filling operation. Reference numeral 49 in the drawing is a pressure sensor, which is a safety device for stopping the operation of the chamber supply valve 28 and preventing the flow valve 13 from opening when the counter pressure does not reach a predetermined pressure due to deformation of the container.

[0017]

According to the present invention, by controlling the rotation of the vent servomotor provided for each filling valve body,
By adjusting the height of the float valve at the bottom of the vent tube by adjusting the height of the float valve at the bottom of the vent tube through the vent cam and vent lever, it is possible to adjust the content of the container to be filled. It is possible to automatically and promptly and reliably adjust the amount of flavor to be changed while performing the filling work, to cope with diversification of beverage types and beverage cans, and to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a main part of the present invention.

FIG. 2 is a partially cutaway front view of the same main part.

FIG. 3 is a partially cutaway front view of the upper portion of the filling valve body of the present invention.

FIG. 4 is a partially cutaway front view of the lower portion of the filling valve body of the present invention.

[Explanation of symbols]

 1 Filling valve body 9 Float valve 10 Vent tube 16 Vent lever 17 Vent servo motor 18 Vent cam

Claims (2)

[Claims] 1. A vent cam for controlling a descent point of a float valve provided at a lower end of a vent tube, a lever mechanism for transmitting a rotational displacement of the vent cam to the vent tube, and a set rotation angle of the vent cam. A filling valve for a rotary liquid filling machine, wherein an appropriate driving means is installed for each filling valve body. 2. A filling valve for a rotary liquid filling machine according to claim 1, wherein the driving means is constituted by a servomotor controlled by a servo controller.