EP0007169A1 - Têtes de remplissage pour machines de conditionnement pour remplir des récipients d'une quantité de liquide et machines comportant lesdites têtes - Google Patents

Têtes de remplissage pour machines de conditionnement pour remplir des récipients d'une quantité de liquide et machines comportant lesdites têtes Download PDF

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Publication number
EP0007169A1
EP0007169A1 EP79301027A EP79301027A EP0007169A1 EP 0007169 A1 EP0007169 A1 EP 0007169A1 EP 79301027 A EP79301027 A EP 79301027A EP 79301027 A EP79301027 A EP 79301027A EP 0007169 A1 EP0007169 A1 EP 0007169A1
Authority
EP
European Patent Office
Prior art keywords
filling
liquid
discharge head
container
passages
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Withdrawn
Application number
EP79301027A
Other languages
German (de)
English (en)
Inventor
Douglas James Broadhurst Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cargo Fleet Chemical Co Ltd
Original Assignee
Cargo Fleet Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cargo Fleet Chemical Co Ltd filed Critical Cargo Fleet Chemical Co Ltd
Publication of EP0007169A1 publication Critical patent/EP0007169A1/fr
Withdrawn legal-status Critical Current

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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
    • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C3/2608—Filling-heads; Means for engaging filling-heads with bottle necks comprising anti-dripping means

Definitions

  • residual liquid should remain by capillary action in the passages after each charging operation, but if the passage diameter is too large, this will not happen or will happen only in some of the passages with the result that the amount of liquid in any container may lie within significantly wide tolerances, which means irregular filling from container to container, which in turn means that a filler usually has to overfill, resulting in either loss of profits or eventual loading of the price to the consumer.
  • a filling machine may have as many as 100 filling assemblies, and that in a brewery it may be filling cans with beer 24 hours a day, it will be appreciated that the loss or consumer charge loading which can result from overfilling can be quite considerable.
  • filling assemblies of liquid filling machines should operate to control more accurately the quantity of liquid discharged into each container at each operation of the or each filling assembly and the present invention aims at providing a filling assembly with this objective in view.
  • a filling assembly for a filling machine adapted to fill containers with liquid through the filling assembly, said assembly comprising a discharge head which is adapted to engage, fit over or otherwise co-operate with the mouth or open top of each container to be filled, said discharge head defining a plurality of discharge passages through which the liquid is discharged in being charged into the container, and communicating with a liquid chamber jointly defined by the discharge head and a discharge head guide, said discharge head being slidable relative to the guide, the assembly being adapted so that in use it is located above the open mouth or open top of a container to be filled, the discharge head and container are moved together so that the container mouth engages the discharge head which is displaced upwards relative to the guide, and after filling by charging the liquid through the chamber and the said passages, the container and head move apart which causes downward movement of the discharge head relative to the guide, which creates a partial vacuum effect in said chamber and thereby residual liquid in said passages is held in the passages or is drawn into the said chamber by
  • the discharge head has a collar provided with a groove sealingly to receive the open can top, and a vent passage to allow venting of air as the can is being filled, and the said discharge passages are arranged so that the liquid issues therefrom to impinge on the can wall at a suitable angle having regard to the liquid being charged into the can.
  • the discharge head may have a collar having a recess into which the bottle neck fits so that the shoulder of the bottle bears upon a sealing ring of the collar, the discharge head further including a poppet member having the discharge passages in the lower end thereof leading from a bore therein, said bore communicating at the top end with said chamber, and the member being slidably located in the collar, which latter has a vent for the venting of air from the bottle when it is being filled with liquid.
  • the said poppet member is preferably spring loaded to a position in which the said discharge passages are blocked . by the bore of the collar in which the poppet member slides, but is displaceable downwards by the guide when the discharge head is displaced upwards.
  • the guide preferably has a bore through which liquid is passed in being delivered to the discharge passages, flow through said bore normally being blocked by a one-way valve which opens by virtue of the pressure in the liquid being delivered to the discharge passages.
  • the air for supplying the said blast may be derived from a source which is also used for driving a main piston of the assembly which serves for the pumping of the quantity of liquid to be delivered to the or each container.
  • the filling assembly may also comprise conventional valving mechanism for controlling the flow of the liquid to the said chamber in charges in sequence with the operation at the filling assembly.
  • assemblies in a filling machine embodying assemblies according to the invention, these may be mounted so as to travel in an endless path, and in travelling in that path, each assembly and a container to be filled are brought into register, and move in register round the endless path; they are brought together; the container is filled through the assembly: the assembly and container are separated; the container is removed from the endless path and the assembly is subsequently brought into register with another container in relation to which the above cycle is repeated. All assemblies of the machine operate similarly.
  • the filling assembly shown in sectional elevation in Figure 1 is for use in filling open top cans or wide mouth bottles and is mounted on a machine table 10 which in use rotates about a vertical axis.
  • the table 10 is provided with a plurality of the said heads at radially arranged and equally spaced locations, and the description of the assembly shown therefore suffices for each of the other assemblies of the machine.
  • a cylindrical body 12 Fixed to the top of the table 10 is a cylindrical body 12 having a cylinder bore 14 in which is slidably located a valve displacement piston 16.
  • a valve body 18 Mounted on top of the body 12 is a valve body 18 of cylindrical form and having a bore 20 in which is slidably located a valuespindle or sleeve 22 which is adapted to be moved up the down to a limited extent by the piston 16.
  • body 18 On top of body 18 is provided a cylinder sleeve .25 which is slidably located a main charging piston 26. wiedt. 24 is closed by a cap 28 and rigidifying rods 30 conret the cap 28 with the body 12.
  • the body 12, heav 18, sleeve 24, cap 28 and rods 30 are the parts of the head which de not move up and down in use and are firmly connected to the table 10.
  • a piston rod 26A of piston 26 projects slidably through the cap 28 and is provided with an adjustable stop membey 32 whose position can be adjusted axially of the rod 26A in order to limit the extent of movement of piston 26 and thereby to limit the volume of liquid which is charged through the filling assembly into a container at any particular operation.
  • a cylindrical guide body 34 on which is slidably mounted a discharge head comprising sleeve 36 which is slidable on the guide body 34, a collar 38 connecied to the sleeve 36 so as to be movable therewith, and hree guid rods 40 which are fast with the collar 38 and slidably locate in body 12 and also in bores in rods 30 as shown.
  • the assembly is also associated with a corl valva 47. controlling the supply of air under pressure to the top side of piston 26 through passage 44 in cap 28 on the one hand, and to the respective sides of piston 16 through passages 46 in body 12 and 48 in body 18 on the other hand.
  • the assembly is provided with a plurality of O-ring seals which are illustrated in the drawing in conventional manner.
  • Inlet passage 50 in body 22 is for the supply of the charging liquid, which is under pressure, to the filling head and eventually to the container to be filled.
  • the filling assembly is shown in the position in which it engages the open mouth of a metal can 52, and the filling of the can has been completed in that the piston 26 is in the downwards position and the stop 32 sits on a limiting shoulder 54. Immediately prior to reaching the position shown, the piston 26 was moved from a position adjacent the cap 28 to the position shown by supply of air under pressure through the passage 44.
  • liquid to the underside of piston 26 is discharged through the bore 20 in body 18, through the top interior passage 56 in the valve spindle 22, through the radial passages 58 in the valve spinde 22 and round a blocking ring 60 of the valve spindle 22 by virtue of the position of the spindle 22 in relation to the enlarged groove 62 in the bore 20, then through the radial ports 64 at the top of the lower portion of the spindle 22, through the central bore 68 of the lower portion of spindle 22, and out through the bottom of spindle 22 and into radial passages 70 in the body 34, and then into chamber 72 which is defined between the collar unit and the guide body 34, and from the chamber 72, the liquid issues under pressure into the container 52 throu q h the passaqes 74 in the collar 38 and lying so as to define a conical surface.
  • passages 74 there are twelve passages 74, and it will be seen that they lead the a V-shaped groove 76 on the underside of the collar 38, which groove 76 is matched to the diameter of the container 52 to be filled so that the container top edge will lie the base of the said groove 76.
  • the inclination of the passages 74 ensures that the issuing liquid meets the container inner wall at the correct angle.
  • the effective volume of chamber 72 is increased, and a partial vacuum effect is created therein.
  • uncontrolled dripping or spilling of the residual liquid into the container 52 is avoided.
  • the sequence of operation of the valve 42 is such that air under pressure supplied through valve 42 is directed to a blasing passage 84 in the collar 38 and a blast of air is applied to the chamber 72 and out through the passages 74, whereby all residual liquid in the chamber and passages is blown into the container 52, and in fact forms part of the contents thereof.
  • valve stem 22 is next moved upwards in the body 18 by the application of air under pressure through passage 46 to the underside of piston 16, and the sleeve 22 moves upwards forcing liquid in the cylinder 18 above the sleeve 22 back into cylinder 24 and initiating the return movement of piston 26.
  • This movement continues until the radial passages 58 register with the inlet 50 for the liquid, but the passages 64 are blocked from such inlet 50 by the ring 60 and its associated O-ring.
  • the filling assembly as described and as shown in Figure 1 has shown itself in practice to be extremely accurate, and the design of the assembly at the discharge head region also presents an additional advantage that the collar 38 can be replaced by another collar of a different size to suit different sized containers and indeed the filling head can be modified by removal of the collar 38 to adapt it for the filling of narrow necked containers such as bottles.
  • Figure 2 shows the operative part of the assembly shown in Figure 1 modified to adapt it for the filling of bottles B as shown in Figure 2.
  • FIG. 2 shows the bottom end of the filling assembly.
  • the figure shows the table 10, the guide rods 40, the valve spindle or sleeve 22, the sleeve 36 and the spring 82 which correspond to these components shown in Figure 1. All of the components shown above the table 10 in Figure 1 are also present in the Figure 2 arrangement, but have been omitted in the interests of clarity.
  • the discharge head is further modified to adapt the filling assembly for the filling of bottles B, which have a tapered shoulder as shown located under the neck through which the containers are filled.
  • the discharge head is provided with a collar 100 which is secured to the rods 40 and is provided with a central bore 102 of stepped configuration. That is to say, the bore has a relatively large diameter section 102A, an intermediate narrow diameter section 102B and a lower large diameter section 102C.
  • the section 1020 leads to a seat 104 of frusto-conical form which as shown engages the tapered shoulder of the bottle B during the filling operation.
  • the section 102C in fact forms a recess for receiving the mouth of the filled bottle, and there is provided a vent passage 106 through which air may be vented when the passage B is being filled with liquid.
  • a guide and sealing sleeve 108 in which is slidably located a poppet valve member 110.
  • the stem of the valve member 110 has a bore 112 and at the bottom end a plurality of discharge passages 114 arranged at an angle to axis of the bore 112, such that the liquid issuing from the passage 114 impinges smoothly on the inside of the tapered portion of the bottle B as shown by the arrows.
  • the head 116 of the valve member 110 is provided with radial passages 118 leading from the bore 112, and the bore 112 also opens through the top of the head l16.
  • a control casing 120 having radial apertures 122 and a poppet control valve 124 therein.
  • the valve 124 is urged by a spring 126 to seat against the lower end of the spindle 22 to seal the bore 68 of the spindle 22 when there is no delivery of liquid from the piston 26.
  • the filling assembly described may have the majority of its components fabricated in plastics material if desired.
EP79301027A 1978-05-31 1979-05-31 Têtes de remplissage pour machines de conditionnement pour remplir des récipients d'une quantité de liquide et machines comportant lesdites têtes Withdrawn EP0007169A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2481378 1978-05-31
GB2481378 1978-05-31

Publications (1)

Publication Number Publication Date
EP0007169A1 true EP0007169A1 (fr) 1980-01-23

Family

ID=10217645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79301027A Withdrawn EP0007169A1 (fr) 1978-05-31 1979-05-31 Têtes de remplissage pour machines de conditionnement pour remplir des récipients d'une quantité de liquide et machines comportant lesdites têtes

Country Status (1)

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EP (1) EP0007169A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665682A1 (fr) * 1990-08-13 1992-02-14 Colgate Palmolive Co Buse anti-goutte et procede de remplissage de poches souples.
CN115402576A (zh) * 2022-10-11 2022-11-29 浙江博力建材科技有限公司 一种液体水泥助磨剂灌装设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680768A (en) * 1949-10-28 1952-10-08 Santiago Domenech Oriol Liquid filling apparatus for bottles and the like operating by suction
US2721021A (en) * 1951-10-18 1955-10-18 Crown Cork & Seal Co Filling head
US2954806A (en) * 1957-03-21 1960-10-04 Fmc Corp Filling mechanism with valve means
US3527267A (en) * 1967-10-17 1970-09-08 Colgate Palmolive Co Automatic container filling apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680768A (en) * 1949-10-28 1952-10-08 Santiago Domenech Oriol Liquid filling apparatus for bottles and the like operating by suction
US2721021A (en) * 1951-10-18 1955-10-18 Crown Cork & Seal Co Filling head
US2954806A (en) * 1957-03-21 1960-10-04 Fmc Corp Filling mechanism with valve means
US3527267A (en) * 1967-10-17 1970-09-08 Colgate Palmolive Co Automatic container filling apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665682A1 (fr) * 1990-08-13 1992-02-14 Colgate Palmolive Co Buse anti-goutte et procede de remplissage de poches souples.
TR27996A (tr) * 1990-08-13 1995-11-13 Colgate Palmolive Co Paket doldurma yöntemi ve tertibati.
CN115402576A (zh) * 2022-10-11 2022-11-29 浙江博力建材科技有限公司 一种液体水泥助磨剂灌装设备

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19820405

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Inventor name: SMITH, DOUGLAS JAMES BROADHURST