WO2001066944A1 - Metering pump - Google Patents
Metering pump Download PDFInfo
- Publication number
- WO2001066944A1 WO2001066944A1 PCT/CH2001/000134 CH0100134W WO0166944A1 WO 2001066944 A1 WO2001066944 A1 WO 2001066944A1 CH 0100134 W CH0100134 W CH 0100134W WO 0166944 A1 WO0166944 A1 WO 0166944A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cavity
- pump
- liquid
- adhesive
- lockable
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/06—Venting
Definitions
- the invention relates to a pump with a proportional-volumetric metering unit for precisely metering a given volume of a liquid in a range of less than about 1 ml
- Disc-shaped data carriers of the DVD type must have an extremely high level of flatness
- the data carriers are produced by gluing two discs, one disc usually serving as a support disc and the other disc serving as the actual data disc. In principle, however, the data carriers can also be glued together from two Data slices exist
- the gluing process is of outstanding importance in that no stresses may be introduced into the data carrier via the adhesive layer in addition to the selection of a suitable adhesive who, for example, must not shrink during curing, must ensure when applying the adhesive that the volume to be applied to a pane can be dosed very precisely, that there are no air pockets, including microbubbles, in the applied adhesive and that the adhesive is applied when the adhesive is applied the disc does not drop a drop too soon from the adhesive application capillary and no drop can escape as a throw-up
- a known supply device for lacquers and adhesives on disk-shaped data carriers or on the disks of a data carrier to be glued together has a valve which is controlled via the opening time.
- Such valve controls are dependent on the application pressure and on the viscosity of the lacquer or the adhesive because of the pressure losses in the supply line - As a result of temperature fluctuations, such a system must be readjusted from time to time in time-consuming manual work
- the invention is therefore based on the object of providing a pump of the type mentioned at the outset, with which a predetermined liquid volume can be required in a precisely metered manner.
- the pump is intended to apply a predetermined volume of paint or adhesive to the surface of a data carrier or one intended for the production of the data carrier Enable disc in a reproducible way
- the pump has a cavity for receiving the liquid and the cavity is delimited on one side by a surface which can be moved by means of a lifting device to change the cavity volume
- the pump has a lockable inlet valve between a liquid supply and the cavity , comprises a lockable outlet valve between the cavity and a liquid dispenser and a lockable vent valve between the cavity and the outside atmosphere
- the cavity can be freed of trapped air bubbles during operation with liquid. Simultaneously with this venting process, in which the cavity is bounded on one side If the surface starts moving from a starting position, the volume-proportional liquid demand that can only be reproduced linearly after a certain initial phase of the movement can be used. With the vent valve, the non-linear area observed at the beginning of the request process can be switched off in a simple manner by venting - The valve remains open until the liquid demand enters the linear range
- the cavity-side access to the vent valve is expediently connected to the highest point of the cavity
- a particularly compact and precisely working embodiment of the pump according to the invention has a proportional solenoid, the coil core of which is designed as a plunger at one end, the plunger abutting an actuating piston with which the surface delimiting the cavity on one side can be moved
- the area delimiting the cavity on one side is preferably a membrane that is clamped in fluid-tight on the edge
- the actuating piston can be automatically jerked by means of a return spring.
- PLC programmable controller
- a particular use of the pump according to the invention is in the precise, defined and reproducible application of a predetermined volume of a lacquer or an adhesive to a surface of a disk-shaped data carrier or a disk provided for producing the data carrier in order to produce a thin lacquer or adhesive film
- FIG. 1 shows a partially sectioned side view of a metering pump
- FIG. 2 shows the top view of the metering pump from FIG. 1,
- FIG. 3 shows a part of FIG. 1 in an enlarged view
- the plunger stroke is controlled by direct control of the proportional magnet 12 via electrical connections 16.
- this can additionally be carried out with a displacement sensor in
- the pusher 14 rests on an actuating piston 18. At its end, which is remote from the pusher 14, the actuating piston 18 is connected to a laterally clamped membrane 20.
- the membrane 22 delimits a cavity 22 on one side to accommodate a certain amount of adhesive
- the membrane 20 is moved by an axial movement of the actuating piston 18, and the volume of the cavity 22 - depending on the stroke of the plunger 14 - is increased or decreased depending on the direction of movement.
- the first line 24-24 ' is connected via an intermediate inlet valve 30 to a storage container for the adhesive, not shown in the drawing.
- the second line 26-26' is connected to the outside atmosphere via an intermediate vent valve 32.
- the third line 28-28 ' is connected via an intermediate outlet valve 34 to a dispensing line, not shown in the drawing, with a dispensing capillary for applying the adhesive to a half of the DVD.
- the lines 24 ', 26' leading away from the metering pump 10 consist, for example, of a PTFE hose and are connected to the valves 30, 32, 34 in a fluid-tight manner via screw nipples 36.
- the electrical connections of the electromagnetically actuated valves 30, 32, 34 are made via flange plugs 38.
- the cavity 22 is always filled with adhesive and is essentially free of air pockets. Any fine air bubbles still present collect in the cavity 22 at its highest point 40, at which the vent valve 32 opens.
- the actuating piston 18 for the membrane 20 is in its initial position.
- the vent valve 32 is opened, so that any air inclusions accumulated at the highest point 40 of the cavity 22 are removed from the cavity 22 via the line 26-26 ′.
- the vent valve 32 is closed and the outlet valve 34 is opened. Through the further stroke.
- the outlet valve 34 is closed. Depending on the size of the cavity 22 and the amount of adhesive dispensed from the cavity 22 during each adhesive application cycle. the dispensing process described above is repeated a few times until the increasingly smaller cavity 22 has to be filled again with new adhesive.
- the cavity 22 can also be refilled after each adhesive application cycle.
- the inlet valve 30 is opened with the outlet valve 34 closed and the vent valve 32 also closed. In this position of the valves 30, 32, 34, glue is refilled into the cavity 22 from the storage container (not shown in the drawing) which is under slight positive pressure. This refilling process is supported by the automatic return of the actuating piston 18 via a return spring 42. After the cavity 22 is completely filled with glue again, the next dosing process can be initiated as mentioned above.
- the metering pump 10 and the valves 30, 32, 34 are controlled with high precision and practically in real time by means of a computer via a programmable logic controller (PLC).
- PLC programmable logic controller
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001565532A JP2003526049A (en) | 2000-03-10 | 2001-03-05 | Metering pump |
AU2001235302A AU2001235302A1 (en) | 2000-03-10 | 2001-03-05 | Metering pump |
EP01907300A EP1266139A1 (en) | 2000-03-10 | 2001-03-05 | Metering pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810203.0 | 2000-03-10 | ||
EP00810203A EP1132616A1 (en) | 2000-03-10 | 2000-03-10 | Dosing pump |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001066944A1 true WO2001066944A1 (en) | 2001-09-13 |
Family
ID=8174594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2001/000134 WO2001066944A1 (en) | 2000-03-10 | 2001-03-05 | Metering pump |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030113218A1 (en) |
EP (2) | EP1132616A1 (en) |
JP (1) | JP2003526049A (en) |
AU (1) | AU2001235302A1 (en) |
WO (1) | WO2001066944A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10162773A1 (en) * | 2001-12-20 | 2003-07-10 | Knf Flodos Ag Sursee | metering |
ATE373172T1 (en) * | 2002-10-09 | 2007-09-15 | Tacmina Corp | RECIPIENT PUMP AND NON-CHECK VALVE |
GB0320880D0 (en) * | 2003-09-05 | 2003-10-08 | Inergy Automotive Systems Res | Smart additive system (SAS) dosing pump |
DE202004007183U1 (en) * | 2004-05-05 | 2005-09-29 | Nordson Corporation, Westlake | Device for supplying fluid dispensing devices with a fluid |
DE102009021815B4 (en) * | 2009-05-18 | 2017-10-05 | Albonair Gmbh | feed pump |
DE202010015595U1 (en) * | 2010-11-02 | 2011-06-09 | Spreizer, Heinrich | Multiple filling of highly viscous materials |
CN104265608A (en) * | 2014-09-24 | 2015-01-07 | 滁州友林科技发展有限公司 | Efficient diaphragm pump device for sewage treatment |
CN104265609A (en) * | 2014-09-24 | 2015-01-07 | 滁州友林科技发展有限公司 | Diaphragm pump device with high-voltage inverter for sewage treatment |
JP2020051348A (en) * | 2018-09-27 | 2020-04-02 | 株式会社イワキ | Reciprocating pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2238062A1 (en) * | 1974-01-25 | 1975-02-14 | Poclain Sa | Multiple outlet piston pump - outlets are controlled electronically by programmer in desired sequence |
DE2803470A1 (en) * | 1978-01-27 | 1979-08-02 | Viktor Dulger | Dosing pump with lifting element actuated electromagnetically - has solenoid and pressure valve in ventilation channel to chamber and return |
US4236881A (en) * | 1978-05-03 | 1980-12-02 | Ecodyne Corporation | Liquid metering pump |
US4990066A (en) * | 1988-08-12 | 1991-02-05 | Hans Kern | Metering pump |
DE4219663A1 (en) * | 1992-06-16 | 1993-12-23 | Prominent Dosiertechnik Gmbh | Fluid controlled feed pump - has pump chamber with vol. enlarged on suction stroke and reduced on pressure stroke, having venting valve at upper end |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278406A (en) * | 1979-11-07 | 1981-07-14 | R. W. Beckett Corporation | Electromagnetic pump |
US4743169A (en) * | 1984-08-25 | 1988-05-10 | Aisin Seiki Kabushiki Kaisha | Diaphragm-type vacuum pump device |
US4874299A (en) * | 1987-04-08 | 1989-10-17 | Life Loc, Inc. | High precision pump |
FR2689014B1 (en) * | 1992-03-24 | 1994-06-03 | Aguettant Lab | MEDICAL LIQUID PERFUSION PUMP. |
DE4328559C5 (en) * | 1993-08-25 | 2004-11-25 | Knf-Neuberger Gmbh | Diaphragm pump with at least two membranes |
US6109886A (en) * | 1997-10-02 | 2000-08-29 | Wabco Gmbh | Compressed-air supply installation with reduced idling power |
DE19848217B4 (en) * | 1998-10-20 | 2013-06-27 | Wabco Gmbh | gas compressor |
US6257842B1 (en) * | 1999-11-17 | 2001-07-10 | Techno Takatsuki Co., Ltd. | Silencer and electromagnetic vibrating type pump employing the same |
-
2000
- 2000-03-10 EP EP00810203A patent/EP1132616A1/en not_active Withdrawn
-
2001
- 2001-03-05 EP EP01907300A patent/EP1266139A1/en not_active Withdrawn
- 2001-03-05 JP JP2001565532A patent/JP2003526049A/en not_active Withdrawn
- 2001-03-05 WO PCT/CH2001/000134 patent/WO2001066944A1/en not_active Application Discontinuation
- 2001-03-05 US US10/221,322 patent/US20030113218A1/en not_active Abandoned
- 2001-03-05 AU AU2001235302A patent/AU2001235302A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2238062A1 (en) * | 1974-01-25 | 1975-02-14 | Poclain Sa | Multiple outlet piston pump - outlets are controlled electronically by programmer in desired sequence |
DE2803470A1 (en) * | 1978-01-27 | 1979-08-02 | Viktor Dulger | Dosing pump with lifting element actuated electromagnetically - has solenoid and pressure valve in ventilation channel to chamber and return |
US4236881A (en) * | 1978-05-03 | 1980-12-02 | Ecodyne Corporation | Liquid metering pump |
US4990066A (en) * | 1988-08-12 | 1991-02-05 | Hans Kern | Metering pump |
DE4219663A1 (en) * | 1992-06-16 | 1993-12-23 | Prominent Dosiertechnik Gmbh | Fluid controlled feed pump - has pump chamber with vol. enlarged on suction stroke and reduced on pressure stroke, having venting valve at upper end |
Also Published As
Publication number | Publication date |
---|---|
AU2001235302A1 (en) | 2001-09-17 |
US20030113218A1 (en) | 2003-06-19 |
EP1266139A1 (en) | 2002-12-18 |
EP1132616A1 (en) | 2001-09-12 |
JP2003526049A (en) | 2003-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4092642C1 (en) | Improved constant viscous liq. delivery device | |
DE102013203599B4 (en) | Method for calibrating analogue controlled hydraulic valves and a brake system | |
EP1206967B1 (en) | System and method for taking up and/or dispensing liquid samples | |
WO2001066944A1 (en) | Metering pump | |
CH675216A5 (en) | ||
DE10046052A1 (en) | Supply of liquid precursors to semiconductor processing reactors | |
DE4218320A1 (en) | Method and device for testing a valve driven by a medium | |
DE2352029C2 (en) | Device for dispensing flowable plastic material | |
DE102007048651A1 (en) | Coating system for delivering flexible coating material on substrate, has control device actuated to supply chain of impulses to solenoid valve, needle valve closed for intervals between impulses, and coating material discharged from needle | |
DE10010208C2 (en) | Microdosing device for the defined delivery of small, closed liquid volumes | |
EP2400193A1 (en) | Device for regulating the flow of a fluid or gaseous medium | |
EP1653236A1 (en) | Method and apparatus for controlling a transfer of liquid with a pressure measurement | |
DE3016609C2 (en) | ||
DE19837434A1 (en) | Chemical analysis unit for quantitative analysis of e.g. biological fluid | |
EP1173279B1 (en) | Method and device for applying small quantities of liquid | |
EP0256161B1 (en) | Mixing valve | |
EP2317299A1 (en) | Method for leak testing a hand-held cylinder stroke pipette and leak testing equipment for the same | |
DE102019123200B4 (en) | DEVICE AND METHOD FOR SUPPLYING A LIQUID MEDIUM | |
DE102008016513A1 (en) | Device and method for exact dosing of liquids | |
WO2010031559A1 (en) | Microfluidic valve, microfluidic pump, microfluidic system, and a production method | |
EP1123155B1 (en) | Valve device | |
DE10149671A1 (en) | Method for controlling a piezo drive and piezo drive for performing the method | |
DE4229639C1 (en) | IC card manufacturing method - delivering volume of adhesive determined by variation of pressure and duration in which adhesive is supplied via tubule | |
DE10306751B4 (en) | Device for filling a medium | |
DE102017121426A1 (en) | Method for level detection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ CZ DE DE DK DK DM DZ EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 565532 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001907300 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10221322 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2001907300 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001907300 Country of ref document: EP |