Beverage bottling plant for filling bottles with a liquid beverage filling material having a filling machine with a filling control element

• US 20060266003A1
• Filed: 03/07/2006
• Published: 11/30/2006
• Est. Priority Date: 03/08/2005
• Status: Abandoned Application

• Current Assignee: KHS Maschinen- Und Anlagenbau AG (Salzgitter AG)
• Original Assignee: KHS Maschinen- Und Anlagenbau AG (Salzgitter AG)
• Inventors: Bestmann, Matthias, Topf, Roland
• Application Number:
  US11/370,217
• Publication Number:
  US 20060266003A1
• Time in Patent Office: Days
• US Class Current: 53/281
• CPC Class Codes: B67C 3/007 Applications of control, warning or safety devices in filling machinery flow-control B67C3/28
• CPC Class Codes: F15B 11/125 by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
• CPC Class Codes: F15B 15/1409 with two or more independently movable working pistons
• CPC Class Codes: F15B 15/24 for restricting the stroke

Abstract

A beverage bottling plant for filling bottles with a liquid beverage filling material having a filling machine with a filling control element. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Claims

1. In a beverage bottling plant, a filling machine being configured and disposed to fill bottles with a liquid beverage, said filling machine comprising:

a first conveyor arrangement being configured and disposed to convey bottles to be filled to said bottle filling machine;

a rotor;

a rotatable vertical machine column;

said rotor being connected to said vertical machine column to permit rotation of said rotor about said vertical machine column;

a plurality of bottle filling elements for filling bottles with liquid beverage material being disposed on the periphery of said rotor;

each of said plurality of bottle filling elements comprising a bottle carrier being configured and disposed to receive and hold beverage bottles to be filled;

each of said plurality of bottle filling elements being configured and disposed to dispense liquid beverage material into bottles to be filled;

at least one liquid reservoir being configured to hold a supply of liquid beverage material;

a liquid supply line being configured and disposed to connect said at least one liquid reservoir to said bottle filling machine to supply liquid beverage material to said bottle filling machine;

at least one sensor being configured to sense the amount of liquid beverage being dispensed into bottles disposed beneath said filling elements;

a second conveying arrangement being configured and disposed to move bottles out of said bottle filling machine;

a flow valve being disposed in said liquid supply line;

said flow valve comprising a housing;

said housing comprising an inlet portion and an outlet portion;

a liquid channel being disposed in said housing and being configured to permit the flow of liquid therethrough;

said flow valve comprising;

an opening and closing device being disposed at a juncture between said inlet portion and said outlet portion;

said opening and closing device being configured and disposed to be moved, to permit the fast flow of liquid from said inlet portion to said outlet portion during filling, to permit the slow flow of liquid from said inlet portion to said outlet portion during filling, and to block the flow of liquid through said flow valve upon a bottle being filled;

an actuator device being configured to actuate said opening and closing device, said actuator device comprising;

a piston rod being connected to and extending perpendicularly away from said opening and closing device, and comprising an enlarged upper segment;

a housing being configured and disposed to house said piston rod;

a first lower piston being disposed within said housing and about said piston rod;

a first lower cylinder compartment being disposed between said first lower piston and said housing;

a second upper piston being disposed within said housing and about said piston rod;

a second upper cylinder compartment being disposed between said second upper piston and said housing;

said first lower piston being disposed substantially closer to said opening and closing device than said second upper piston;

a compression spring being disposed between said first lower piston and said second upper piston;

said compression spring being configured and disposed to apply a bias force to said piston rod to hold said opening and closing device in a closed rest position to block the flow of liquid through said flow valve;

a first adjustable stroke limiter being disposed in the upper side of said housing above said second upper piston;

a second adjustable stroke limiter being disposed in the upper side of said housing above said piston rod, and being disposed substantially parallel to said first adjustable stroke limiter;

a motor driven adjustment drive being configured to individually adjust said first adjustable stroke limiter and said second adjustable stroke limiter to compensate for variances in the liquid being bottled, such as for temperature and thickness of the liquid;

a first control valve being disposed outside of said housing;

a second control valve being disposed outside of said housing;

said first control valve being configured to pressurize said second upper cylinder compartment upon receiving a signal from said at least one sensor, and to move said piston rod, said first lower piston, and said second upper piston upwardly in a short stroke motion toward said first adjustable stroke limiter;

said first adjustable stroke limiter being configured and disposed to come into contact with said second upper piston and to stop the upward short stroke motion of said piston rod;

said upward short stroke motion of said piston rod being configured to move said opening and closing device from its closed rest position against the bias of said compression spring, and into a partially opened position, permitting a slow fill of a bottle being disposed beneath said filling device;

said second control valve being configured to pressurize said first lower cylinder compartment upon receiving a signal from said at least one sensor, and to move said piston rod and said first lower piston upwardly in a long stroke motion toward said second adjustable stroke limiter;

said second adjustable stroke limiter being configured and disposed to come into contact with said enlarged upper segment of said piston rod and to stop the upward long stroke motion of said piston rod;

said upward long stroke motion of said piston rod being configured to move said opening and closing device from its partially opened position and into a fully opened position, permitting a fast fill of a bottle being disposed beneath said filling device; and

said first control valve and said second control valve being configured to be deactivated to move said piston rod and said opening and closing device, back into a closed rest position upon a bottle being filled.

2. The filling machine according to claim 1, wherein:

said adjustment drive is an electric motor, for example a stepper motor;

said adjustment drive of said first adjustable stroke limiter and said second adjustable stroke limiter has an incremental encoder;

said first adjustable stroke limiter and said second adjustable stroke limiter determine the limit position of said first lower piston and said second upper piston and/or said piston rod when said first lower cylinder compartment and said second upper cylinder compartment are pressurized;

said first adjustable stroke limiter and said second adjustable stroke limiter determine the limit position of said first lower piston and said second upper piston and/or said piston rod when said first lower cylinder compartment and said second upper cylinder compartment are depressurized;

said first adjustable stroke limiter and said second adjustable stroke limiter can be adjusted parallel to the axis of movement of said first lower piston and said second upper piston;

said first adjustable stroke limiter and said second adjustable stroke limiter are formed by a threaded pin that can be engaged in a threaded portion of the housing;

said first adjustable stroke limiter interacts with a surface of said second upper piston that faces away from the second upper cylinder compartment and is offset radially, for example, with respect to the axis of said second upper piston;

said first lower piston and said second upper piston are both disposed on said piston rod, and that said second upper piston is located on the piston rod so that during a movement out of a starting position into a stroke position, it drives said piston rod, i.e. it is in a driving connection with said piston rod, although it can be moved out of the stroke position into the starting position without being accompanied by said piston rod;

said first lower piston for said long stroke motion is in a fixed connection with said piston rod, and that said second upper piston acts in a drive connection on said piston rod only during said short stroke motion, and that said first adjustable stroke limiter interacts with said piston rod and said second adjustable stroke limiter interacts with the said second upper piston;

said first lower cylinder compartment and said second upper cylinder compartment can each be pressurized in a controlled manner by said first control valve and said second control valve with fluid under pressure, for example compressed air or hydraulic medium;

when there are two different stroke positions of said piston rod of said actuator device, the first stroke position corresponds to a first opening position of said flow valve, for example with a reduced opening cross section, and the second stroke position of the piston rod of the actuator device corresponds to a second opening position of said flow valve, for example with a larger opening cross section;

said first and second adjustable stroke limiters can be adjusted by means of a central machine control system, preferably individually, for example as a function of the machine parameters such as, for example, manufacturing tolerances, wear, aging and/or as a function of external parameters, such as, for example, product temperature, ambient temperature etc. and/or as a function of parameters or properties of the liquid being bottled, such as, for example, viscosity, foaming tendency etc.;

said filling machine comprises distributed control devices being configured to adjust said first and second adjustable stroke limiters;

said first and second adjustable stroke limiters can be adjusted by the central machine control system and/or by distributed control devices as a function of filling parameters that are measured automatically or on request during the filling process, such as for example flow speed, temperature and filling pressure, according to at least one program that is stored in the central control system and/or in said distributed control devices; and

said filling machine comprises a flow meter for the measurement of the quantity of liquid dispensed into a bottle and/or a weighing cell for the measurement of the increase in the weight of the respective bottle at each filling position during filling.

3. In a bottling plant, a filling machine being configured and disposed to fill bottles with a liquid, said filling machine comprising:

a first conveyor arrangement being configured and disposed to convey bottles to be filled to said bottle filling machine;

a plurality of bottle filling stations for filling bottles with liquid;

each of said plurality of bottle filling stations comprising a bottle carrier being configured and disposed to receive and hold bottles to be filled;

each of said plurality of bottle filling stations being configured and disposed to dispense liquid into bottles to be filled;

at least one liquid supply conduit being configured and disposed to supply liquid to said plurality of filling stations;

a second conveying arrangement being configured and disposed to move bottles out of said bottle filling machine;

a flow valve being disposed in said at least one liquid supply conduit;

said flow valve comprising a housing;

said housing comprising an inlet portion and an outlet portion;

a liquid channel being disposed in said housing and being configured to permit the flow of liquid therethrough;

said flow valve comprising;

an opening and closing device being disposed at a juncture between said inlet portion and said outlet portion and being configured and disposed to be moveable, to permit the flow of liquid from said inlet portion to said outlet portion during filling, and to block the flow of liquid through said flow valve upon a bottle being filled;

an actuator device being configured to actuate said opening and closing device to open and close said opening and closing device;

at least two adjustable stroke limiters each being configured to limit the stroke of the opening and closing device to a determined stroke;

a first of said at least two adjustable stroke limiters being configured to provide a first flow rate to a bottle;

a second of said at least two adjustable stroke limiters being configured to provide a second flow rate to a bottle;

said first flow rate and said second flow rate being substantially different;

each of said adjustable stroke limiters having an adjustment drive being configured to adjust the stroke of said opening and closing device to optimize the flow of liquid into a bottle at a determined time during the filling cycle of a bottle; and

a stroke limit controller being configured to adjust the stroke of each stroke limiter to compensate for changing conditions of the liquid and thus to minimize the time of the filling of the bottle.

4. The filling machine according to claim 3, wherein:

said adjustment drive is an electric motor, for example a stepper motor; and

said adjustment drive of said at least two strike limiters has an incremental encoder.

5. The filling machine according to claim 4, wherein:

said actuator device comprises at least one piston;

said actuator device comprises at least one cylinder compartment being configured and disposed to be pressurized and depressurized;

said actuator device is a piston rod that interacts with said at least one piston; and

said at least two stroke limiters determines the limit position of said at least one piston and/or said actuator device when said at least one cylinder compartment is pressurized.

6. The filling machine according to claim 5, wherein:

said at least two stroke limiters determine the limit position of said at least one piston and/or of said actuator device when said at least one cylinder compartment is unpressurized; and

said at least two stroke limiters can be adjusted parallel to the axis of movement of said at least one piston.

7. The filling machine according to claim 6, wherein:

said actuator device comprises a housing;

said at least two stroke limiters are formed by a threaded pin that can be engaged in a threaded portion of said housing;

the first of said at least two stroke limiters interacts with a surface of said at least one piston that faces away from said at least one cylinder compartment and is offset radially, for example, with respect to the axis of said at least one piston; and

the second of said at least two stroke limiters interacts with one end of said actuator device or piston rod.

8. The filling machine according to claim 7, wherein:

said at least one piston and said actuator device that is effectively connected with said piston are biased by spring means in a starting position, preferably in the starting position that corresponds to said at least one cylinder compartment when it is unpressurized;

said actuator device comprises at least two pistons;

a first of said at least two pistons is located so that it can move axially on said piston rod, and that on said piston and/or on said piston rod, coupling and/or driver means are provided which, during the movement of the first of said at least two pistons in a first stroke direction, effect a non-positive connection between the first of said at least two pistons and said piston rod, and make possible a movement of the first of said at least two pistons without being accompanied by said piston rod in a second, opposite stroke direction; and

for a stepped movement of said actuator device or of said piston rod out of the starting position, in a first, e.g. smaller stroke into a first stroke position and in a second, e.g. longer stroke into a second stroke position, said at least two pistons are provided, with said at least one cylinder compartment that can be pressurized with fluid pressure, and that said at least one individually adjustable stroke limiter is provided for each of said at least two pistons.

9. The filling machine according to claim 8, wherein:

said at least two pistons are both provided on said piston rod, and that the first of said at least two pistons is located on said piston rod so that during a movement out of a starting position into a stroke position, it drives said piston rod, i.e. it is in a driving connection with said piston rod, although it can be moved out of the stroke position into the starting position without being accompanied by said piston rod;

the second of said at least two pistons for the longer stroke is in a fixed connection with said piston rod, that the first of said at least two pistons acts in a drive connection on said piston rod only during the shorter stroke, and that the second of said at least two adjustable stroke limiters interacts with said piston rod and the first of said at least two adjustable stroke limiters interacts with the first of said at least two pistons; and

said at least one cylinder compartment can be pressurized in a controlled manner by means of a corresponding control valve with fluid under pressure, for example compressed air or hydraulic medium.

10. The filling machine according to claim 9, wherein:

the starting position of said actuator device or of said piston rod corresponds to the closed position of said flow valve and the at least one stroke position of said actuator or of said piston rod corresponds to an open position of said flow valve;

there are two different stroke positions of said actuator device, wherein the first stroke position corresponds to a first opening position of said flow valve, for example with a reduced opening cross section, and the second stroke position of said actuator device corresponds to a second opening position of said flow valve, for example with a larger opening cross section.

11. The filling machine according to claim 10, wherein:

said at least two stroke limiters of the individual actuator devices can be adjusted by means of a central machine control system, preferably individually, for example as a function of the machine parameters such as, for example, manufacturing tolerances, wear, aging and/or as a function of external parameters, such as, for example, product temperature, ambient temperature etc. and/or as a function of parameters or properties of the liquid being bottled, such as, for example, viscosity, foaming tendency etc.;

said at least two stroke limiters can be adjusted by the central machine control system and/or by distributed control devices as a function of filling parameters that are measured automatically or on request during the filling process, such as for example flow speed, temperature and filling pressure, according to at least one program that is stored in the central control system and/or in the distributed control devices; and

each bottle filling station comprises a flow meter for the measurement of the quantity of liquid dispensed into a bottle and/or a weighing cell for the measurement of the increase in the weight of the corresponding bottle during filling.

12. A method of filling a bottle with a liquid in a bottle filling machine in a bottle filling plant, said bottle filling machine comprising:

a first conveyor arrangement being configured and disposed to convey bottles to be filled to said bottle filling machine;

a plurality of bottle filling stations for filling bottles with liquid;

each of said plurality of bottle filling stations comprising a bottle carrier being configured and disposed to receive and hold bottles to be filled;

each of said plurality of bottle filling stations being configured and disposed to dispense liquid into bottles to be filled;

at least one liquid supply conduit being configured and disposed to supply liquid to said plurality of filling stations;

a second conveying arrangement being configured and disposed to move bottles out of said bottle filling machine;

a flow valve being disposed in said at least one liquid supply conduit;

said flow valve comprising a housing;

said housing comprising an inlet portion and an outlet portion;

a liquid channel being disposed in said housing and being configured to permit the flow of liquid therethrough;

said flow valve comprising;

an opening and closing device being disposed at a juncture between said inlet portion and said outlet portion and being configured and disposed to be moveable, to permit the flow of liquid from said inlet portion to said outlet portion during filling, and to block the flow of liquid through said flow valve upon a bottle being filled;

an actuator device being configured to actuate said opening and closing device to open and close said opening and closing device;

at least two adjustable stroke limiters each being configured to limit the stroke of the opening and closing device to a determined stroke;

a first of said at least two adjustable stroke limiters being configured to provide a first flow rate to a bottle;

a second of said at least two adjustable stroke limiters being configured to provide a second flow rate to a bottle;

said first flow rate and said second flow rate being substantially different;

each of said adjustable stroke limiters having an adjustment drive being configured to adjust the stroke of said opening and closing device to optimize the flow of liquid into a bottle at a determined time during the filling cycle of a bottle; and

a stroke limit controller being configured to adjust the stroke of each stroke limiter to compensate for changing conditions of the liquid and thus to minimize the time of the filling of the bottle, said method comprising the steps of;

adjusting the first of said least two stroke limiters with said adjustment drive to a first position to compensate for variances in the liquid or for different characteristics of the liquid to be bottled during a bottling run;

activating the actuator device to move said opening and closing device upwardly toward the first of said at least two stroke limiters;

stopping the upward movement of said actuator device with the first of said at least two stroke limiters to permit a slow filling of a bottle;

adjusting the second of said least two stroke limiters with said adjustment drive to a second position to compensate for variances in the liquid or for different characteristics of the liquid to be bottled during a bottling run;

activating the actuator device to move said opening and closing device upwardly toward the second of said at least two stroke limiters;

stopping the upward movement of said actuator device with the second of said at least two stroke limiters to permit a fast filling of a bottle; and

deactivating said actuator device upon a bottle being filled to move said opening and closing device to its starting position to block the flow of liquid into a bottle.

13. The method of filling a bottle according to claim 12, wherein:

said adjustment drive is an electric motor, for example a stepper motor; and

said adjustment drive of said at least two strike limiters has an incremental encoder.

14. The method of filling a bottle according to claim 13, wherein:

said actuator device comprises at least one piston;

said actuator device comprises at least one cylinder compartment being configured and disposed to be pressurized and depressurized;

said actuator device is a piston rod that interacts with said at least one piston; and

said at least two stroke limiters determines the limit position of said at least one piston and/or said actuator device when said at least one cylinder compartment is pressurized.

15. The method of filling a bottle according to claim 14, wherein:

said at least two stroke limiters determine the limit position of said at least one piston and/or of said actuator device when said at least one cylinder compartment is unpressurized; and

said at least two stroke limiters can be adjusted parallel to the axis of movement of said at least one piston.

16. The method of filling a bottle according to claim 15, wherein:

said actuator device comprises a housing;

said at least two stroke limiters are formed by a threaded pin that can be engaged in a threaded portion of said housing;

the first of said at least two stroke limiters interacts with a surface of said at least one piston that faces away from said at least one cylinder compartment and is offset radially, for example, with respect to the axis of said at least one piston; and

the second of said at least two stroke limiters interacts with one end of said actuator device or piston rod.

17. The method of filling a bottle according to claim 16, wherein:

said at least one piston and said actuator device that is effectively connected with said piston are biased by spring means in a starting position, preferably in the starting position that corresponds to said at least one cylinder compartment when it is unpressurized;

said actuator device comprises at least two pistons;

a first of said at least two pistons is located so that it can move axially on said piston rod, and that on said piston and/or on said piston rod, coupling and/or driver means are provided which, during the movement of the first of said at least two pistons in a first stroke direction, effect a non-positive connection between the first of said at least two pistons and said piston rod, and make possible a movement of the first of said at least two pistons without being accompanied by said piston rod in a second, opposite stroke direction; and

for a stepped movement of said actuator device or of said piston rod out of the starting position, in a first, e.g. smaller stroke into a first stroke position and in a second, e.g. longer stroke into a second stroke position, said at least two pistons are provided, with said at least one cylinder compartment that can be pressurized with fluid pressure, and that said at least one individually adjustable stroke limiter is provided for each of said at least two pistons.

18. The method of filling a bottle according to claim 17, wherein:

said at least two pistons are both provided on said piston rod, and that the first of said at least two pistons is located on said piston rod so that during a movement out of a starting position into a stroke position, it drives said piston rod, i.e. it is in a driving connection with said piston rod, although it can be moved out of the stroke position into the starting position without being accompanied by said piston rod;

the second of said at least two pistons for the longer stroke is in a fixed connection with said piston rod, that the first of said at least two pistons acts in a drive connection on said piston rod only during the shorter stroke, and that the second of said at least two adjustable stroke limiters interacts with said piston rod and the first of said at least two adjustable stroke limiters interacts with the first of said at least two pistons; and

said at least one cylinder compartment can be pressurized in a controlled manner by means of a corresponding control valve with fluid under pressure, for example compressed air or hydraulic medium.

19. The method of filling a bottle according to claim 18, wherein:

the starting position of said actuator device or of said piston rod corresponds to the closed position of said flow valve and the at least one stroke position of said actuator or of said piston rod corresponds to an open position of said flow valve;

there are two different stroke positions of said actuator device, wherein the first stroke position corresponds to a first opening position of said flow valve, for example with a reduced opening cross section, and the second stroke position of said actuator device corresponds to a second opening position of said flow valve, for example with a larger opening cross section.

20. The method of filling a bottle according to claim 19, wherein:

said at least two stroke limiters of the individual actuator devices can be adjusted by means of a central machine control system, preferably individually, for example as a function of the machine parameters such as, for example, manufacturing tolerances, wear, aging and/or as a function of external parameters, such as, for example, product temperature, ambient temperature etc. and/or as a function of parameters or properties of the liquid being bottled, such as, for example, viscosity, foaming tendency etc.;

said at least two stroke limiters can be adjusted by the central machine control system and/or by distributed control devices as a function of filling parameters that are measured automatically or on request during the filling process, such as for example flow speed, temperature and filling pressure, according to at least one program that is stored in the central control system and/or in the distributed control devices; and

each bottle filling station comprises a flow meter for the measurement of the quantity of liquid dispensed into a bottle and/or a weighing cell for the measurement of the increase in the weight of the corresponding bottle during filling.