EP3248932A1 - Machine for filling containers with automatic refill system - Google Patents
Machine for filling containers with automatic refill system Download PDFInfo
- Publication number
- EP3248932A1 EP3248932A1 EP17165769.5A EP17165769A EP3248932A1 EP 3248932 A1 EP3248932 A1 EP 3248932A1 EP 17165769 A EP17165769 A EP 17165769A EP 3248932 A1 EP3248932 A1 EP 3248932A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- liquid
- valve
- receptacle
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/20—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups
- B67C3/202—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups by weighing
Definitions
- the present invention relates to a filling machine of the weight filling type, and more precisely to a system for refilling the filling liquid in the supplying tank of the machine.
- Filling machines typically comprise a carousel which moves a plurality of containers to be filled and a plurality of filling taps, placed on the vertical axis of the containers, adapted to dispense the filling liquid into the containers.
- the tank tends to empty, and the level to decrease, which would alter the filling speed. Therefore, the tank comprises a refill system, which is adjusted so as to maintain the level of liquid in the tank substantially constant at all times.
- a refill system is complex and requires the use of sophisticated detection means, such as level sensors and/or command and control units adapted to adjust the refilled liquid amount as a function of that dispensed by the machine.
- the invention relates to a weight filling machine comprising a filling unit and a unit for supplying a container-filling liquid to the filling unit, wherein the supply unit comprises a tank containing the filling liquid from which a dispensing duct departs, wherein the dispensing duct leads into an automatic refill device comprising a receptacle in turn connected to the filling unit by means of a supply line of the filling liquid, wherein the dispensing duct terminates inside the receptacle with an automatic valve, preferably a float valve, for closing-opening the dispensing duct, wherein the automatic valve determines and adjusts the level of filling liquid inside the receptacle.
- the supply unit comprises a tank containing the filling liquid from which a dispensing duct departs
- the dispensing duct leads into an automatic refill device comprising a receptacle in turn connected to the filling unit by means of a supply line of the filling liquid
- the dispensing duct terminates
- the filling machine indicated as a whole by numeral 1, comprises a filling unit 2 and a supply unit 3 of a liquid product for filling containers.
- the filling unit 2 comprises a rotating table 4 hinged on a shaft 5 moved by the motorization of the machine.
- the rotating table 4 comprises a plurality of plates 6 for supporting containers C.
- the containers C may be retained on the plates 6 in a conventional manner, for example by retaining them at the neck 7 by means of suitable pliers.
- the plurality of distribution lines 9 is connected to a distribution manifold 10 which distributes the product among the various filling valves 8.
- the constructional details of the distribution manifold 10 are known to those skilled in the art since such a manifold is used in conventional filling machines.
- the supply unit 3 comprises a tank 12 containing the filling liquid.
- the tank may be periodically filled by means of a loading line 13 which may be connected to a tank or storage silos, for example.
- Tank 12 comprises a dispensing duct 14, typically placed at the bottom to allow the outflow of the liquid by gravity.
- the dispensing duct 14 leads into an automatic refill device 15, in turn connected along with the supply line 11 of the filling liquid to the distribution manifold 10 of the filling unit 2.
- the automatic refill device 15 in particular the surface of the liquid inside such a device, is placed at a lower height with respect to the level at which the dispensing nozzles of the filling valves 8 are placed. As shown in Figure 1 , the filling liquid should thus overcome a geodetic difference in level h1 so that the dispensing of the liquid may take place. This feature allows to obtain a better control of the filling operation.
- the automatic refill device 15 is preferably placed on the floor.
- the automatic refilling device 15 comprises a receptacle 16, the supply line 11 of the filling unit 2 departing from the bottom thereof.
- Receptacle 16 may have a cylindrical shape, but other shapes, such as an ovoid shape or a spherical shape, are not excluded.
- the float valve 17 thus defines the level of liquid present in receptacle 16.
- Receptacle 16 then comprises a headspace 20 which remains free at all times from the filling liquid.
- receptacle 16 comprises an opening 21 connected to a pipe 22 in flow communication with a source 23 of air or another gaseous fluid (e.g., an inert gas if the filling liquid is sensitive to oxygen) at a first predetermined pressure P1.
- a source 23 of air or another gaseous fluid e.g., an inert gas if the filling liquid is sensitive to oxygen
- the pressure P of the filling fluid exiting the dispensing duct 14 is higher than the first pressure P1 of the gas in the headspace 20, but lower than a second pressure P2 given by the sum of the first pressure P1 of the gas with Archimedes' thrust to which the float 19 is subjected.
- the pressure P of the fluid exiting the dispensing duct 14 is determined by pumping means 24 for loading the filling liquid in receptacle 16.
- valve means 25 are placed, typically a pressure limiter, connected to a recirculation duct 26 which reconnects to the dispensing duct 14 upstream of the pumping means 24.
- valve means 25 would divert the liquid flow into the recirculation duct 26.
- the filling machine according to the invention allows to achieve the intended objects.
- the automatic refill system of the invention does not require sophisticated electronic controls, such as level sensors and the like, thus obtaining the adjustment of the level in the refill device 15 in a totally mechanical manner.
- the machine of the invention is of simple design and easy maintenance.
Abstract
Description
- The present invention relates to a filling machine of the weight filling type, and more precisely to a system for refilling the filling liquid in the supplying tank of the machine.
- Filling machines typically comprise a carousel which moves a plurality of containers to be filled and a plurality of filling taps, placed on the vertical axis of the containers, adapted to dispense the filling liquid into the containers. The machine further comprises a high capacity tank containing the filling liquid, which is placed at a certain height above the manifold which distributes the liquid among the various taps, so that the liquid outflows from the taps with a dispensing speed which is given by the following formula:
- During the dispensing, the tank tends to empty, and the level to decrease, which would alter the filling speed. Therefore, the tank comprises a refill system, which is adjusted so as to maintain the level of liquid in the tank substantially constant at all times. However, such a refill system is complex and requires the use of sophisticated detection means, such as level sensors and/or command and control units adapted to adjust the refilled liquid amount as a function of that dispensed by the machine.
- Therefore, it is the object of the present invention to provide a filling machine which allows a simplified management of the tank refilling system with filling liquid.
- Such an object is achieved by a filling machine as set forth in the appended claims, the definitions of which form an integral part of the present description.
- In particular, the invention relates to a weight filling machine comprising a filling unit and a unit for supplying a container-filling liquid to the filling unit, wherein the supply unit comprises a tank containing the filling liquid from which a dispensing duct departs, wherein the dispensing duct leads into an automatic refill device comprising a receptacle in turn connected to the filling unit by means of a supply line of the filling liquid, wherein the dispensing duct terminates inside the receptacle with an automatic valve, preferably a float valve, for closing-opening the dispensing duct, wherein the automatic valve determines and adjusts the level of filling liquid inside the receptacle.
- Further features and advantages of the present invention will become more apparent from the description of some embodiments, given below by way of indicative and non-limiting example, with reference to the following figures:
-
Figure 1 shows a schematic block diagram view of the filling machine of the invention; -
Figures 2A and 2B depict schematic views of a detail of the machine inFigure 1 in two different operating conditions; -
Figure 3 shows a schematic block diagram view of the filling machine of the invention according to a different embodiment. - With reference to
Figure 1 , the filling machine according to the invention, indicated as a whole bynumeral 1, comprises afilling unit 2 and asupply unit 3 of a liquid product for filling containers. - The
filling unit 2 comprises a rotating table 4 hinged on ashaft 5 moved by the motorization of the machine. The rotating table 4 comprises a plurality ofplates 6 for supporting containers C. The containers C may be retained on theplates 6 in a conventional manner, for example by retaining them at theneck 7 by means of suitable pliers. - Above each
plate 6, afilling valve 8 is positioned, also of the conventional type, chosen according to the type of filling liquid (e.g. for foaming products, or for high density products, etc.). - Preferably, the
filling unit 2 is a weight filling unit, therefore it is equipped with suitable devices, of the conventional type, which allow this type of filling. In particular, theplates 6 or pliers 7 (if container C is suspended at the pliers 7) will be connected to a suitable loading cell which in turn will be operatively connected to a command and control unit (not shown) ofmachine 1 so as to stop the filling of each individual container C once the preset weight has been reached. - Each
filling valve 8 is connected to adistribution line 9 of product P. - The plurality of
distribution lines 9 is connected to adistribution manifold 10 which distributes the product among thevarious filling valves 8. The constructional details of thedistribution manifold 10 are known to those skilled in the art since such a manifold is used in conventional filling machines. - The
distribution manifold 10 is connected to thesupply unit 3 by means of asupply line 11. - The
supply unit 3 comprises atank 12 containing the filling liquid. The tank may be periodically filled by means of aloading line 13 which may be connected to a tank or storage silos, for example. -
Tank 12 comprises adispensing duct 14, typically placed at the bottom to allow the outflow of the liquid by gravity. Thedispensing duct 14 leads into anautomatic refill device 15, in turn connected along with thesupply line 11 of the filling liquid to thedistribution manifold 10 of thefilling unit 2. - The
automatic refill device 15, in particular the surface of the liquid inside such a device, is placed at a lower height with respect to the level at which the dispensing nozzles of thefilling valves 8 are placed. As shown inFigure 1 , the filling liquid should thus overcome a geodetic difference in level h1 so that the dispensing of the liquid may take place. This feature allows to obtain a better control of the filling operation. Theautomatic refill device 15 is preferably placed on the floor. - As shown in
Figures 2A and 2B , theautomatic refilling device 15 comprises areceptacle 16, thesupply line 11 of thefilling unit 2 departing from the bottom thereof. -
Receptacle 16 may have a cylindrical shape, but other shapes, such as an ovoid shape or a spherical shape, are not excluded. - The
upper surface 16a ofreceptacle 16 comprises an opening, positioned for example in a central position, in which the dispensingduct 14 originating fromtank 12 is inserted. The dispensingduct 14 then comprises anend portion 14a inside the receptacle, which terminates with an automatic valve, such as afloat valve 17 or a diaphragm valve. - In certain embodiments, the
float valve 17 comprises abell 18 with its cavity facing downwards forming the lower end of theend portion 14a of the dispensingduct 14. Inbell 18, afloat 19 is accommodated, for example a spherical float, free to move between a closing position and an opening position ofduct 14, respectively shown inFigures 2A and 2B . - The
float valve 17 thus defines the level of liquid present inreceptacle 16.Receptacle 16 then comprises aheadspace 20 which remains free at all times from the filling liquid. At such aheadspace 20,receptacle 16 comprises anopening 21 connected to apipe 22 in flow communication with asource 23 of air or another gaseous fluid (e.g., an inert gas if the filling liquid is sensitive to oxygen) at a first predetermined pressure P1. - The pressure to which the filling liquid exiting the dispensing
duct 14 is instead subjected and which therefore acts on thefloat valve 17 is instead dictated by height h according to the law:tank 12 from thefloat valve 17. - In the
automatic refill device 15 of the invention, the pressure P of the filling fluid exiting the dispensingduct 14 is higher than the first pressure P1 of the gas in theheadspace 20, but lower than a second pressure P2 given by the sum of the first pressure P1 of the gas with Archimedes' thrust to which thefloat 19 is subjected. The latter is equal to the weight force of float 19:float 19 and g is the gravity acceleration. - Furthermore, the pressure P1 of the gas in the headspace must be equal to or higher than the pressure Pa required to overcome the geodetic difference in level h1, according to the equation Pe= ρgh1.
- Thereby, in static conditions, i.e. in a period of standstill of the
filling machine 1, theautomatic refill device 15 is in the condition shown inFigure 2A : the pressure P2 resulting from the sum of Archimedes' thrust with the pressure P1 of the gaseous fluid keepsfloat 19 in the closing position. - When the machine is in the condition of use, i.e. during the step of filling the containers C, the level of the filling liquid in
receptacle 16 tends to decrease due to the liquid which is removed through thesupply line 11, and this causes the lowering offloat 19 to the opening position (Figure 2B ). Due to the pressure P of the input liquid being greater than the pressure P1 of the gaseous fluid, the filling liquid flows through the dispensingduct 14 and brings the level inside thereceptacle 16 back to the starting position.Float 19 thus closes the dispensingduct 14 and the raising of the level halts. Continuing the filling operation, the above-described operating conditions are alternately recreated, i.e. a continuous and rapid alternation of the condition inFigure 2A and that inFigure 2B . Thereby, an automatic refilling ofreceptacle 16 is thus obtained. - The fact that the volume of
receptacle 16 is sufficiently small so as to result in a greater sensitivity and speed of the response time of the automatic adjustment is advantageous. For example,receptacle 16 may have a volume of 3-7 liters. - In a different embodiment, shown in
Figure 3 , the pressure P of the fluid exiting the dispensingduct 14 is determined by pumping means 24 for loading the filling liquid inreceptacle 16. - Along the dispensing
duct 14, between such pumping means 24 and thereceptacle 16, valve means 25 are placed, typically a pressure limiter, connected to arecirculation duct 26 which reconnects to the dispensingduct 14 upstream of the pumping means 24. - In this embodiment, if the pressure P of the filling liquid exiting the dispensing
duct 14 should overcome the predetermined threshold, the valve means 25 would divert the liquid flow into therecirculation duct 26. - Therefore, the filling machine according to the invention allows to achieve the intended objects.
- Indeed, the automatic refill system of the invention does not require sophisticated electronic controls, such as level sensors and the like, thus obtaining the adjustment of the level in the
refill device 15 in a totally mechanical manner. - The machine of the invention is of simple design and easy maintenance.
- It is apparent that only some particular embodiments of the present invention have been described, to which those skilled in the art will be able to make all those modifications required for the adaptation thereof to particular applications, without thereby departing from the scope of protection of the present invention.
Claims (11)
- Weight filling machine (1) comprising a filling unit (2) and a unit (3) for supplying a liquid for the filling of containers (C) to the filling unit (2), wherein the supply unit (3) comprises a tank (12) containing the filling liquid from which a dispensing duct (14) departs, characterized in that the dispensing duct (14) introduces filling liquid in an automatic refill device (15) comprising a receptacle (16) in turn connected to the filling unit (2) by means of a supply line (11) of the filling fluid, wherein the dispensing duct (14) terminates inside the receptacle (16) with an automatic valve (17) for the closing-opening of the dispensing duct (14), wherein the automatic valve (17) determines and adjusts the level of filling liquid inside the receptacle (16).
- Weight filling machine (1) according to claim 1, wherein the automatic valve is a float valve (17).
- Weight filling machine (1) according to claim 1 or 2, wherein the filling unit comprises a plurality of filling valves (8) each comprising a dispensing nozzle and wherein the surface of the liquid inside the receptacle (16) is placed at a lower height with respect to the level at which the dispensing nozzles of the filling valves (8) are placed, such that the filling liquid must overcome a geodetic difference in level (h1).
- Weight filling machine (1) according to claim 2 or 3, wherein the float valve (17) comprises a bell (18) with cavity facing downwards constituting the lower end of the end portion (14a) of the dispensing duct (14), a float (19) being housed in the bell (18), such float is free to move between a closing position and an opening position of the dispensing duct (14).
- Weight filling machine (1) according to any one of claims from 1 to 4, wherein the receptacle (16) comprises a headspace (20) that remains free from filling liquid at all times, in which, at such headspace (20), the receptacle (16) comprises an opening (21) in flow communication with a source (23) of air or other gaseous fluid at a first predetermined pressure (P1).
- Weight filling machine (1) according to claim 5, wherein the filling liquid coming out of the dispensing duct (14) has a pressure (P) according to the law:
- Weight filling machine (1) according to any one of claims from 5 to 6, wherein the pressure (P1) of the gas in the headspace (20) is equal to or greater than the pressure (Pa) required to overcome the geodetic difference in level (h1), according to the equation Pe= ρgh1, wherein ρ is the density of the liquid, g is the gravity acceleration and h1 is said geodetic difference in level.
- Weight filling machine (1) according to any one of claims from 1 to 7, wherein the dispensing duct (14) is intercepted by pumping means (24) for loading the filling liquid in the receptacle (16), valve means (25) being placed between such pumping means (24) and the receptacle (16), such valve means (25) are connected with a recirculation duct (26) that reconnects to the dispensing duct (14) upstream of the pumping means (24).
- Weight filling machine (1) according to claim 8, wherein said valve means are a pressure limiter adjusted to the pressure (P) of the filling liquid at the float valve (17).
- Weight filling machine (1) according to any one of claims from 1 to 9, wherein the filling unit (2) comprises a rotating table (4) hinged on a shaft (5), wherein the rotating table (4) comprises a plurality of plates (6) for supporting the containers (C), a filling valve (8) being positioned above each plate (6), wherein each filling valve (8) is connected to a distribution manifold (10), in turn connected to said automatic refill device (15).
- Weight filling machine (1) according to any one of claims from 1 to 9, wherein the filling unit (2) comprises a rotating table (4) hinged on a shaft (5), wherein the rotating table (4) comprises a plurality of pliers (7) for supporting the containers (C) without plates, a filling valve (8) being positioned above each container (C), wherein each filling valve (8) is connected to a distribution manifold (10), in turn connected to said automatic refill device (15).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUA2016A003859A ITUA20163859A1 (en) | 2016-05-27 | 2016-05-27 | FILLING MACHINE OF CONTAINERS WITH AUTOMATIC TOPPING UP SYSTEM |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3248932A1 true EP3248932A1 (en) | 2017-11-29 |
Family
ID=57133267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17165769.5A Withdrawn EP3248932A1 (en) | 2016-05-27 | 2017-04-10 | Machine for filling containers with automatic refill system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3248932A1 (en) |
IT (1) | ITUA20163859A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114392635A (en) * | 2022-02-28 | 2022-04-26 | 稀美资源(广东)有限公司 | Tantalum ethoxide automatic constant-temperature collecting and subpackaging device |
IT202100030113A1 (en) * | 2021-11-29 | 2023-05-29 | Sidel Participations Sas | FILLING MACHINE TO FILL CONTAINERS WITH A VERSABLE PRODUCT |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1384538A (en) * | 1919-10-28 | 1921-07-12 | Fred W Muller | Bottle-filling apparatus |
FR1534009A (en) * | 1967-06-14 | 1968-07-26 | Ct De Rech S De Pont A Mousson | Device for dispensing a liquid by drawing off an inert atomosphere |
FR2637885A1 (en) * | 1988-10-14 | 1990-04-20 | Mapco | Machine for filling containers, such as bottles, by means of gravity |
-
2016
- 2016-05-27 IT ITUA2016A003859A patent/ITUA20163859A1/en unknown
-
2017
- 2017-04-10 EP EP17165769.5A patent/EP3248932A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1384538A (en) * | 1919-10-28 | 1921-07-12 | Fred W Muller | Bottle-filling apparatus |
FR1534009A (en) * | 1967-06-14 | 1968-07-26 | Ct De Rech S De Pont A Mousson | Device for dispensing a liquid by drawing off an inert atomosphere |
FR2637885A1 (en) * | 1988-10-14 | 1990-04-20 | Mapco | Machine for filling containers, such as bottles, by means of gravity |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT202100030113A1 (en) * | 2021-11-29 | 2023-05-29 | Sidel Participations Sas | FILLING MACHINE TO FILL CONTAINERS WITH A VERSABLE PRODUCT |
CN114392635A (en) * | 2022-02-28 | 2022-04-26 | 稀美资源(广东)有限公司 | Tantalum ethoxide automatic constant-temperature collecting and subpackaging device |
Also Published As
Publication number | Publication date |
---|---|
ITUA20163859A1 (en) | 2017-11-27 |
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