EP0029634B1 - Fluid dispensing piston pump - Google Patents

Fluid dispensing piston pump Download PDF

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Publication number
EP0029634B1
EP0029634B1 EP19800301060 EP80301060A EP0029634B1 EP 0029634 B1 EP0029634 B1 EP 0029634B1 EP 19800301060 EP19800301060 EP 19800301060 EP 80301060 A EP80301060 A EP 80301060A EP 0029634 B1 EP0029634 B1 EP 0029634B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
pump
fluid dispensing
fluid
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.)
Expired
Application number
EP19800301060
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0029634A1 (en
Inventor
Derek Vincent Mancini
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.)
Consumers Glass Co Ltd
Original Assignee
Consumers Glass 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 Consumers Glass Co Ltd filed Critical Consumers Glass Co Ltd
Publication of EP0029634A1 publication Critical patent/EP0029634A1/en
Application granted granted Critical
Publication of EP0029634B1 publication Critical patent/EP0029634B1/en
Expired 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
    • B67C3/001—Cleaning of filling devices
    • B67C3/002—Cleaning of filling devices using cups or dummies to be placed under the filling heads
    • 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
    • B67C3/206—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 using arrangements of cylinders and pistons
    • 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

Definitions

  • the present invention relates to dispensing and metering devices for fluid materials.
  • a fluid dispensing piston pump which is adapted to be sterilized in place without requiring disassembly of the apparatus.
  • a fluid dispensing piston pump comprising a cylinder having a closed end and an open end, a piston sealingly engaged with said cylinder during the dispensing stroke of the piston, an inlet check valve for admitting fluid to the cylinder, an outlet check valve for discharging fluid from said cylinder and actuating means extending from the piston and through the open end of the cylinder for displacing the piston within the cylinder, characterised in that the cylinder is enlarged towards the closed end thereof beyond the dispensing stroke of the piston, the inlet and outlet valves communicate with said enlarged portion of the cylinder, the actuating means comprises a piston stem extending freely through the cylinder and the open end thereof and sealing means is opera- tlvely associated with the stem for closing the open end of the cylinder when the piston is displaced beyond its dispensing stroke into the enlarged portion of the cylinder whereby high temperature steam or a cleaning fluid may be introduced through the inlet check valve to fill the cylinder when the piston is displaced beyond its dispensing
  • the enlarged portion of the cylinder may be closed by a nozzle member which houses the outlet check valve and closing means may be associated with the nozzle member for engaging the nozzle member during cleaning and sterilising of the pump.
  • the closing means may be a plate member adapted to sealingly engage the nozzle member.
  • a pumping unit 10 has been combined with a distribution nozzle 12 and product feed system 14.
  • the product is fed through the header 16 to the inlet check valve 18 and subsequently to the cylinder chamber 20.
  • the product that has been drawn into the cylinder chamber is discharged through outlet check valve 24 and subsequently through ports 26 and 28 to the filling position below.
  • Cylinder chamber 20 has been provided with an enlarged bottom portion 30 which allows the 0-ring 32 to break its seal with the cylinder wall when lowered into this enlarged portion.
  • the piston 22 during the pumping cycle reciprocates between the position shown in Figure 1 to a position near the upper extremity of the cylinder. During the pumping cycle the piston face 34 and 0-ring 32 do not enter the enlarged cylinder portion 30.
  • On the intake stroke of the pump product is drawn in through the inlet check valve 18, and the outlet check valve 24 remains sealed.
  • the inlet check valve is sealed due to the pressure build-up. within the cylinder chamber and the outlet check valve 24 opens due to the valve member 25 moving downward and opening the ports 27.
  • a steam plate 40 has been shown in Figure 1 in dashed lines and is only used when the pump and distribution system are to be cleaned.
  • the piston member 22 is lowered into the enlarged cylinder portion 30 such that the sealing block 42, which is secured to the piston stem 35, engages the upper portions of the cylinder and forms a seal therewith.
  • the steam plate is then secured to the lower portion of the distribution system and also forms a seal with this system.
  • the steam plate has been designed with an outlet valve for controlling the rate at which steam is discharged from the unit. Steam is introduced through the product feed system 14 and discharged through this control valve and thus the temperature within the complete unit is sufficient to provide sterilization of the working surfaces.
  • the pumping unit can also be sterilized by use of a sterilizing fluid, such as iodine, which is circulated through the pump following the same path as the steam.
  • a sterilizing fluid such as iodine
  • the normal procedure would include flushing the unit with a cleaning fluid, then circulate an acid solution such as vinegar, followed by the sterilizing solution. Often the sterilizing solution may be left to sit in the unit until the next start-up at which time the unit will be flushed.
  • the piston will be in the cleaning position and the fluids will be circulated or supplied by another pump. If it is preferred to clean in place with a sterilizing solution, it may be necessary to enlarge the control valve on the steam plate, such that a higher flow rate is possible.
  • Means for recirculating cleaning fluid through the pump may be provided.
  • the intake piston stroke is shown in Figure 2 with the product being drawn in through the inlet check valve and into the cylinder chamber due to the upward movement of the piston, and with the subsequent pumping stroke of the piston, product is dispensed through the outlet ports 26 and 28 into containers stationed below.
  • the piston member stops before entering the enlarged cylinder portion 30 and therefore a certain amount of product remains in this enlarged cylinder portion.
  • This is somewhat of a problem during start up of the device, several cycles of the piston will prime the pump and assure all subsequent intake strokes of the piston cause product to fill the cylinder chamber.
  • the enlarged cylinder portion always has product in it and as such provides a buffer stock between the piston and the outlet valve.
  • FIG 4 it can be seen that a number of the pumping and dispensing units 10 have been placed above, and transversing a conveyor bed 100.
  • the device has been shown with a common steam cleaning plate 41 which is secured in the cleaning position by bolts 47.
  • This figure also shows the position of the control valve 49 which enables the user to vary the rate at which steam is discharged from the overall apparatus during the cleaning process.
  • each of the pumping units is designed to feed several filling stations and according to this embodiment the output of the pump is distributed to two filling nozzles which are aligned along the length of the conveyor and thus, each container is filled in two steps to reduce the fill rate without affecting the overall output rate of the machine.
  • This particular method provides accurate product fill quantities as any error between outlet ports in the pump should be constant and hence is corrected due to the same container being filled by both distribution ports.
  • one pumping unit and several distribution ports such that one pump may feed two or more lanes of the conveyor.
  • the pump feeds two lanes
  • some accuracy in the fill quantity may be lost, it may still be within. acceptable tolerances, and the resulting cost savings could justify such a system.
  • the cost savings is not only the initial cost of purchasing the pumping unit but also the cost to maintain the units.
  • the pumping unit is shown above the conveyor bed 100 with the spacing between the nozzles 102 and this bed being quite small. It can be appreciated that it is desirable to have this spacing fairly small as problems due to product splash tend to increase as the spacing becomes larger. Products splash is also a function of the speed of the product as it is filling the container and the fill rate has been decreased according to this invention by providing two filling stations.
  • the small spacing between the conveyor bed 100 and the nozzles 102 causes difficulties in securing the steam cleaning plate 41.
  • the components of the pumping system and the steam plate normally are made of stainless steel and can be of considerable weight which increases the difficulty in properly locating and securing the steam plate, to seal the unit for cleaning. This problem has been overcome due to the unique method in which the steam plate is secured and aligned as shown in Figure 4.
  • the operator need only place the steam plate on the conveyor roughly aligned with the pumping unit and then on the upper side of the pumping unit through bolts 47 engaging threaded apertures 51 start to lift the nozzle plate towards the nozzles 102.
  • bracket 43 contacts the aligning pins 45 and the surface 39 to assure proper location of the steam plate with the nozzles. Therefore, the operator can readily secure the steam plate by adjusting the bolts 47 which are accessible at the top of the pumping units with the steam plate adapted to self-align.
  • the nozzles used in the combined pumping units are each held in a common nozzle support member 63. This is a preferred feature to simplify the sealing of the nozzles with the steam plate by providing one integral planar surface for engaging the steam plate.
  • FIG. 7 is a cross-section taken along line 6-6 of Figure 4 and clearly indicates how the apertures 150 which journal bolts 47 are clearly accessible at the top of the pumping unit and can be adjusted by socket wrench for positioning and securing steam plate 41 for steam cleaning.
  • the present invention provides a unique compact system and allows the overall pumping unit to be cleaned in place while maintaining the high quality control standards required of the dairy industry. Furthermore, the pump has been combined with a nozzle arrangement such that the two components cooperate with one another to provide a very compact and simple system. Due to this simple design and cooperation of components, effective cleaning of the device in place is possible. Furthermore, the design allows piston face and particularly the 0-ring of the piston to be placed in flow path of the steam during the cleaning operation, thus assuring a more thorough and effective cleaning of these ports. This thorough cleaning is required as any bacteria remaining on the surfaces would quickly grow and contaminate the product being dispensed and hence reduce the shelf life of the products.

Landscapes

  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP19800301060 1979-11-26 1980-04-02 Fluid dispensing piston pump Expired EP0029634B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA340,642A CA1105773A (en) 1979-11-26 1979-11-26 Combination autoclave pump and nozzle
CA340642 1979-11-26

Publications (2)

Publication Number Publication Date
EP0029634A1 EP0029634A1 (en) 1981-06-03
EP0029634B1 true EP0029634B1 (en) 1984-03-21

Family

ID=4115693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800301060 Expired EP0029634B1 (en) 1979-11-26 1980-04-02 Fluid dispensing piston pump

Country Status (6)

Country Link
EP (1) EP0029634B1 (ja)
JP (1) JPS5696183A (ja)
AU (1) AU543118B2 (ja)
CA (1) CA1105773A (ja)
DE (1) DE3067090D1 (ja)
DK (1) DK152283C (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207155A (ja) * 1983-05-09 1984-11-24 ハウス食品工業株式会社 背圧獲得装置
JPS6170585U (ja) * 1984-10-15 1986-05-14
US4716921A (en) * 1986-04-14 1988-01-05 Ex-Cell-O Corporation Filler sterilization system
DE3623417A1 (de) * 1986-07-11 1988-02-04 Benz & Hilgers Gmbh Dosiervorrichtung zum dosieren und abfuellen von fluessigen oder pasteusen massen, insbesondere keimfrei zu haltenden nahrungsmitteln, wie milch, joghurt, pudding, desserts oder dergleichen in behaelter
IT208202Z2 (it) * 1986-10-01 1988-04-11 Capsulit Srl Siringa per il riempimento dosato di flaconi e simili.
DE3817418C1 (ja) * 1988-05-21 1989-08-10 Hassia Verpackungsmaschinen Gmbh, 6479 Ranstadt, De
CA2052394A1 (en) * 1990-10-03 1992-04-04 Patrick Howe Apparatus for filling containers with a liquid
JP4832945B2 (ja) 2006-04-14 2011-12-07 大日本スクリーン製造株式会社 シリンジポンプおよび基板処理装置
FR3010400A1 (fr) * 2013-09-06 2015-03-13 Sidel Participations Dispositif de remplissage de recipients par un produit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195781A (en) * 1962-10-22 1965-07-20 Ex Cell O Corp Liquid filling apparatus
SE304453B (ja) * 1965-04-14 1968-09-23 Berner Ch Ab
AU474535B2 (en) * 1970-05-28 1972-11-23 EDMUND FREDERICK SLEIGHTHOLM and PRODUCERS DAIRYING CO. LTD A measuring and dispensing device
DE2308689A1 (de) * 1973-02-22 1974-09-05 Breitner Abfuellanlagen Kg Mas Abfuelleinrichtung fuer fluessige medien
DE2821052C2 (de) * 1978-05-13 1986-08-21 Robert Bosch Gmbh, 7000 Stuttgart Dosier- und Abfüllvorrichtung für flüssige Medien

Also Published As

Publication number Publication date
AU543118B2 (en) 1985-04-04
DK152283C (da) 1988-07-11
DE3067090D1 (en) 1984-04-26
EP0029634A1 (en) 1981-06-03
AU6467280A (en) 1981-06-04
DK496980A (da) 1981-05-27
CA1105773A (en) 1981-07-28
JPS5696183A (en) 1981-08-04
DK152283B (da) 1988-02-15

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