US20200063726A1 - Device for pumping viscous material - Google Patents

Device for pumping viscous material Download PDF

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Publication number
US20200063726A1
US20200063726A1 US16/462,631 US201716462631A US2020063726A1 US 20200063726 A1 US20200063726 A1 US 20200063726A1 US 201716462631 A US201716462631 A US 201716462631A US 2020063726 A1 US2020063726 A1 US 2020063726A1
Authority
US
United States
Prior art keywords
conveyor
piston
conveying
viscous material
container
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.)
Abandoned
Application number
US16/462,631
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English (en)
Inventor
Gerrit Enderle
Thomas Hausner
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.)
Atlas Copco IAS GmbH
Original Assignee
Atlas Copco IAS GmbH
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 Atlas Copco IAS GmbH filed Critical Atlas Copco IAS GmbH
Assigned to ATLAS COPCO IAS GMBH reassignment ATLAS COPCO IAS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENDERLE, Gerrit, HAUSNER, THOMAS
Publication of US20200063726A1 publication Critical patent/US20200063726A1/en
Abandoned legal-status Critical Current

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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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • B67D7/645—Barrel pumps
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • 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
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0202—Linear speed of the piston
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible

Definitions

  • the invention relates to an apparatus for conveying of viscous material according to the preamble of claim 1 as well as to a method for the conveying of viscous material, in which such an apparatus is used.
  • Apparatuses are known that are used for the conveying of, for example, adhesives, sealing compounds or insulating compounds from a container to a processing station. They find use in particular in the automotive industry, when viscous materials must be applied onto vehicle body parts.
  • Such apparatuses have a follower plate, which rests on the surface of the material present in the container and follows this surface when the material level descends.
  • a lifting device is then provided, which is used for lowering and raising of the follower plate.
  • the material is withdrawn from the container by means of a conveyor pump connected to a material outlet in the follower plate, wherein the follower plate is slaved to the material surface.
  • the follower plate additionally presses on the material surface so that, by virtue of this pressure, the material is pressed into the material outlet, while the follower plate bears sealingly on a circumferential container wall. If air bubbles are present in the container, however, this is not perceptible prior to the application of the material. But when material containing air bubbles is conveyed and applied onto a workpiece, this usually causes the applied material to be unable to develop its adhesive, sealing or insulating effect sufficiently. Oftentimes, the structural parts coated in such a way are then unfit for further processing and must be discarded as scrap.
  • An apparatus of the type mentioned in the introduction is known from DE 197 13 938 A1.
  • This conveyor apparatus for viscous material has a measuring sensor, which determines the speed of the piston rod of the pump that conveys the viscous material.
  • the measuring sensor is used to keep the speed of the conveyor piston connected to the piston rod constant by means of a control device.
  • a similar apparatus is known from DE 20 2013 009 164 U1.
  • This apparatus has a measured-value transmitter for control of the conveyor volume flow.
  • neither of the two apparatuses is suitable for detecting air bubbles in the material being conveyed.
  • the invention is based on the knowledge, discovered by the Applicant, that the speed of the conveyor piston during the conveying process may vary in a manner dependent on the material consistency.
  • the Applicant has found by experiments that the speed of the conveyor piston during the delivery stroke is constant at least within a tolerance range provided the material consistency remains constant. If the material being conveyed contains air bubbles, this leads to a significant change of the speed of the conveyor piston during the delivery stroke.
  • the speed of the conveyor piston during the delivery stroke be measured by means of a measuring device, so that a change of material consistency and especially the presence of air bubbles may be inferred from a change of the measured speed, so that appropriate measures may be initiated.
  • the measuring device has a control unit for control of the conveying of the viscous material in dependence on the measured speed of the conveyor piston.
  • the control unit evaluates the measured values of the measuring device and automatically initiates measures upon a deviation of the measured speed from a predetermined target speed.
  • a waste line is branched off from a conveying line for the viscous material, which line is connected to the conveyor pump and through which the material is being fed to the processing station, and that the conveying line may be blocked and the waste line released by means of the control unit.
  • the waste line leads expediently to a waste container, in which the material found to be unprocessable may be diverted.
  • the measuring device expediently has a distance-measuring unit for time-independent measurement of the distance traveled by the conveyor piston.
  • the distance-measuring unit is preferably an absolute-value transmitter.
  • the conveyor piston is connected mechanically to the distance-measuring unit. This may take place in that the conveyor pump has a piston rod, which projects from the conveyor cylinder, is connected in fixed manner to the piston rod and is connected rigidly by way of connecting means to a movable element of the distance-measuring unit, and on which a drive unit also expediently acts. The movement of the conveyor piston is then transmitted directly to the movable element of the distance-measuring unit.
  • the control unit automatically changes over and blocks the waste line with simultaneous release of the conveying line.
  • a valve for example a 2/2-way valve, may be provided at the place at which the waste line branches off from the conveying line.
  • FIG. 1 shows a perspective view of a conveyor apparatus
  • FIG. 2 shows a front view of the conveyor apparatus according to FIG. 1 .
  • the apparatus 10 illustrated schematically in the drawing is used for the conveying of viscous material such as adhesive, sealing compound or insulating compound from a drum-like container, not illustrated in more detail.
  • the conveyor apparatus 10 has a follower plate 12 , which is designed to seal a container that is open on an upper side of the container.
  • the follower plate 12 additionally bears in annularly sealing manner on the inside face of a circumferential container wall extending to the upper side of the container.
  • the follower plate 12 bears on the material surface in the container.
  • a lifting device 14 It is mounted on a lifting device 14 , with which it may be lowered in a manner following the descending material level in the container as well as, after emptying of the container, be raised and removed therefrom.
  • a material outlet is disposed, which is not illustrated in more detail in the drawing, and on which a conveyor pump 16 connected in fixed manner to the follower plate 12 is attached in order to convey material from the container via the material outlet into a conveying line 18 leading to a processing station.
  • the conveyor pump 16 has a conveyor cylinder 20 mounted in fixed manner on the follower plate 12 as well as a conveyor piston—not illustrated in the drawing—which can be moved forward and back in the conveyor cylinder 20 , and the linear movement of which in the conveyor cylinder 20 sucks material through the material outlet into the conveyor cylinder 20 and forces the material from the conveyor cylinder 20 into the conveying line 18 .
  • the conveyor apparatus 10 additionally has a measuring device 24 , with which the speed of the conveyor piston during the delivery stroke may be measured.
  • the measuring device 24 has a distance-measuring unit in the form of an absolute-value transmitter 26 , the housing of which is mounted on the lifting device 14 .
  • a piston rod 28 connected in fixed manner to the conveyor piston is guided upwardly out of the conveyor cylinder 20 and by means of connecting rods 30 is connected rigidly to a movable element of the absolute-value transmitter 26 .
  • the distance-measuring device 24 additionally has a control unit 32 , which controls the conveying of the viscous material in dependence on the measured speed of the conveyor piston.
  • the control unit 32 recognizes when the measured speed of the conveyor piston lies outside a tolerance range by a predesignated target speed, which suggests that the consistency of the material being conveyed has changed so much that its suitability is in question. In this case, the control unit 32 operates a valve 34 , so that the material being conveyed is conveyed not to the processing station but instead into a waste line 36 , which is branched off from the conveying line 18 and leads to a waste container 38 . If the control unit 32 recognizes that the speed of the conveyor piston again lies within the tolerance range, it operates the valve 34 yet again and the viscous material is again conveyed via the conveying line 18 to the processing station.
  • the invention relates to an apparatus 10 for the conveying of viscous material from a container, with a conveyor pump 16 , which has a conveyor cylinder 20 and a conveyor piston that can be moved forward and back in the conveyor cylinder 20 .
  • a measuring device 24 is provided for measurement of the speed of the conveyor piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Reciprocating Pumps (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
US16/462,631 2017-01-05 2017-12-15 Device for pumping viscous material Abandoned US20200063726A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017000047.6 2017-01-05
DE102017000047.6A DE102017000047A1 (de) 2017-01-05 2017-01-05 Vorrichtung zum Fördern von viskosem Material
PCT/EP2017/083034 WO2018127383A1 (de) 2017-01-05 2017-12-15 Vorrichtung zum fördern von viskosem material

Publications (1)

Publication Number Publication Date
US20200063726A1 true US20200063726A1 (en) 2020-02-27

Family

ID=60765629

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/462,631 Abandoned US20200063726A1 (en) 2017-01-05 2017-12-15 Device for pumping viscous material

Country Status (6)

Country Link
US (1) US20200063726A1 (de)
EP (1) EP3565972B1 (de)
KR (1) KR20190101984A (de)
CN (1) CN110121594B (de)
DE (1) DE102017000047A1 (de)
WO (1) WO2018127383A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190322521A1 (en) * 2017-01-16 2019-10-24 Atlas Copco Ias Gmbh Device and method for conveying viscous material
US11034575B2 (en) 2016-09-05 2021-06-15 Atlas Copco Ias Gmbh Barrel pump having a follower plate with an adjustable sealing ring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020127440A1 (de) 2020-08-06 2022-02-10 Atlas Copco Ias Gmbh Vorrichtung zum Fördern von viskosem Material

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255088A (en) * 1979-06-14 1981-03-10 Valleylab, Inc. Liquid pumping system having means for detecting gas in the pump
US4679989A (en) * 1986-07-16 1987-07-14 Graco Inc. Pump shovel bulk unloader
DE9014625U1 (de) * 1990-10-22 1991-03-28 Reinhardt-Technik Gmbh & Co, 5883 Kierspe Vorrichtung zum Dosieren eines insbesondere hochviskosen Ein- und Mehrkomponentengemisches
US5252037A (en) * 1992-07-30 1993-10-12 Aseptic Technology Engineering Co. Piston valved vertical pump for particulate materials
DE4332125A1 (de) * 1993-09-22 1995-03-23 Wagner Wilhelm Wiwa Verfahren zum Mischen von Werkstoffkomponenten und Vorrichtung zur Durchführung des Verfahrens
JP3371687B2 (ja) * 1996-06-11 2003-01-27 株式会社スリーボンド 定量吐出方法
DE29902514U1 (de) * 1999-02-15 1999-09-30 Nordson Corp Westlake Vorrichtung zum Fördern von Fluiden, insbesondere viskosen Kleb- oder Dichtstoffen
JP4322282B2 (ja) * 2007-01-25 2009-08-26 中外炉工業株式会社 液体供給装置
CN103423139B (zh) * 2012-05-23 2016-04-27 中联重科股份有限公司 泵送机构及其控制方法以及混凝土泵送设备
DE202013009164U1 (de) * 2013-10-17 2013-11-15 Martin Wagner Fördereinrichtung mit Wegsensor sowie Mischeinrichtung umfassend eine Fördereinrichtung mit einem Wegsensor
US20160215927A1 (en) * 2013-11-18 2016-07-28 Richard Nelson Dual pump oil level system and method
US20160038957A1 (en) * 2014-08-06 2016-02-11 Illinois Tool Works Inc. Remote bulk feed system for a dispensing system and method of supplying viscous material to a dispensing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11034575B2 (en) 2016-09-05 2021-06-15 Atlas Copco Ias Gmbh Barrel pump having a follower plate with an adjustable sealing ring
US20190322521A1 (en) * 2017-01-16 2019-10-24 Atlas Copco Ias Gmbh Device and method for conveying viscous material
US10882734B2 (en) * 2017-01-16 2021-01-05 Atlas Copco Ias Gmbh Device and method for conveying viscous material

Also Published As

Publication number Publication date
EP3565972B1 (de) 2020-10-14
EP3565972A1 (de) 2019-11-13
KR20190101984A (ko) 2019-09-02
WO2018127383A1 (de) 2018-07-12
DE102017000047A1 (de) 2018-07-05
CN110121594B (zh) 2021-07-02
CN110121594A (zh) 2019-08-13

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