US3193202A - Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge - Google Patents

Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge Download PDF

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Publication number
US3193202A
US3193202A US236476A US23647662A US3193202A US 3193202 A US3193202 A US 3193202A US 236476 A US236476 A US 236476A US 23647662 A US23647662 A US 23647662A US 3193202 A US3193202 A US 3193202A
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US
United States
Prior art keywords
mixing
setting agent
liquid
resin
liquid resin
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 - Lifetime
Application number
US236476A
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English (en)
Inventor
Liggenstorfer Arnold
Beeler Bruno
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Individual
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Individual
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Publication date
Priority to NL284794D priority Critical patent/NL284794A/xx
Priority to CH907562A priority patent/CH395285A/de
Application filed by Individual filed Critical Individual
Priority to US236476A priority patent/US3193202A/en
Application granted granted Critical
Publication of US3193202A publication Critical patent/US3193202A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/404—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with feeding or valve actuating means, e.g. with cleaning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
    • B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/001—Control of flow ratio with discontinuous action
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines

Definitions

  • the invention relates to an apparatus and method for mixing and feeding a liquid impregnant mixture consisting of a resin and a resin setting agent to a point of single orifice discharge, especially suitable for impregnating the windings in the slots of armatures and stators.
  • the invention also relates to apparatus for performing the proposed method.
  • the apparatus proposed by the invention consists of a specially constructed device for feeding the two components, e.g., liquid resin and liquid setting agent, of the mixture each separately into its own metering mechanism comprising a cylinder and a piston reciprocable by a lever arm of variable length, this metering mechanism predetermining the given or overall quantity of both components which are separately pumped from the re spective sources in given proportions into the mixer chamber above the nozzle head to be mixed there-in and then immediately discharged through the nozzle.
  • this metering mechanism predetermining the given or overall quantity of both components which are separately pumped from the re spective sources in given proportions into the mixer chamber above the nozzle head to be mixed there-in and then immediately discharged through the nozzle.
  • the apparatus is provided with special means for withdrawing the plug of mixture left in the nozzle, in the event of an interruption of the discharging process, this means embodying an evacuation mechanism in the mixing head operative to prevent solidification of the plug inside the nozzle when the ordinarily continuous impregnation operation is temporarily stopped.
  • the novel apparatus for performing the liquid proportioning and liquid mixing method comprises two separate cylinders each cylinder containing a piston and piston rod, one connected with a storage vessel for the resin and the other with a storage vessel for the setting agent and each separately communicating through its associated tubing with a mixer chamber in combination with a single orifice discharge nozzle, said piston rods being each operatively attached to a lever arm at points located at an adjustable and preselectable distance from the fulcrum of this lever arm whereby both the separate and overall quantities of both components for mixing as well as the proportions which are delivered are controlled.
  • the lever arm is so articulated to the piston rod of the thus described doubleacting driving piston that the resulting proportioning mechanism permits constant flow to the mixing chamber.
  • the mixing chamber contains a rotating mixing blade operatively connected to a vacuum pump which provides the plug withdrawal operation above described.
  • FIG. 1 is a schematic representation of the metering and mixing means
  • FIG. 2 is the mixing nozzle shown in section.
  • FIG. 1 The principle of operation of the apparatus may be seen in connection with FIG. 1 particularly.
  • a storage vessel 1a liquid resin can be drawn into a cylinder 3a by means of a piston 4a.
  • the piston rod 5a is pivotally linked to a lever arm 6 which is fulcrumed at 7 and is reciprocated by a piston rod 8.
  • a feed pipe 9a is provided which connects cylinder 3a with the mixer head 10.
  • the setting agent in liquid form is drawn from a sep arate source, e.g. storage vessel 1b through a pipe 212 into a second cylinder 3b containing a piston 4b with a piston rod 5b which is likewise pivotably linked to the said lever arm 6, and there is provided a second feed pipe 91) connecting the second cylinder to the mixer head iii.
  • a sep arate source e.g. storage vessel 1b
  • a pipe 212 e.g. storage vessel 1b
  • a second cylinder 3b containing a piston 4b with a piston rod 5b which is likewise pivotably linked to the said lever arm 6, and there is provided a second feed pipe 91) connecting the second cylinder to the mixer head iii.
  • the mixer head comprises a cylindrical body 11 provided with a connection 12 for feed pipe 9a which supplies the liquid resin and with a connection 13 for feed pipe 9b which supplies the liquid setting agent.
  • a further connection 14 leads to a vacuum pump 15.
  • the mixing head in its interior contains a mixing blade in which is driven by a motor 17 and which is shaped to sweep the entire inside cross section of the cylinder and thus to provide an intense mixing action and to keep the mixture constantly in motion.
  • the proportion of resin and setting agent in the mixture is a matter of great importance and may vary according to the nature of the materials used.
  • the desired proportion in the mixture may be varied by changing the point at attachment of the piston rods 5a and 5b to lever arm 6.
  • the total quantity delivered is determined by the angle of deflection oz of the lever arm 6.
  • the piston which reciprocates the lever arm by means of its piston rod 8 must be double-acting in order to draw the liquid resin as well as the liquid setting agent from their respective containers during the one stroke and thereafter to force resin and setting agent into the mixing head during the ensuing stroke. It will be understood that the several pipe lines and connections schematically shown in FIG. 1 must incorporate the necessary conventional valve means in order to carry out the double-acting pumping operation.
  • the mixture must not be permitted to remain inside the mixing head 10 for any substantial length of time, since otherwise, the resin would harden and solidify therein to completely block the mixing chamber.
  • metered quantities in the correct proportions of resin and hardening agent for forming the desired end use mixture are forced out of the cylinders 3a and 3b through pipes 9a and 9b and into the mixer.
  • the introduction of the components into the mixer ceases as soon as the lever arm 6 reaches dead center.
  • the components are mixed under agitation by rotating blade 16, and the mixture passes while being stirred in the form of a viscous liquid mass into the nozzle from which the viscous liquid mixture is then discharged. Since the mixer head has been fed with an exactly metered quantity, the entire contents should flow out to correspond with the said metered quantity.
  • the nozzle may be fitted with a slide valve
  • the mixer head maybe provided be obtained with normally solid resins capable of setting with the addition of hardening agents.
  • Apparatus for mixing and feeding a liquid impregnant mixture consisting of a resin in liquid form and a setting agent in liquid form, to a common point of single orifice discharge; a metering mechanism for measuring the delivery of the liquid resin, a separate metering mechanism for measuring the delivery of the liquid setting agent, each of the first and second metering mechanisms consisting of a cylinder containing a piston, a piston rod an open discharging nozzle located at the bottom of said mixer chamber for discharging the impregnant mixture; said open nozzle being formed as a conical section at the base, and the mixer blade having a bottom section which sweeps the cross-section of said conical base to force the resin mixture out of said nozzle by the rotating action of said blade.
  • said mixer chamber is provided with evacuation mechanism in the mixer head to prevent solidification of the resin and setting and a storage vessel having an outlet; a mixer chamber connected by means of associated tubing to the outlet of each of said storage vessels; a common lever arm fulcrumed at one end thereof to which is attached the free end of the piston rod for the liquid resin storage vessel and the free end of the piston rod for liquid setting agent storage tank; a double-action driving piston fitted with a cylinder and a driving piston rod, said driving piston rod being connected to said lever arm at a point between the attachment of the liquid resin storage vessel piston rod and the liquid setting agent storage vessel piston rod, these last two points of attachment being adjustably located at agent .as a plug inside the nozzle when flow is stopped.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US236476A 1962-04-28 1962-11-06 Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge Expired - Lifetime US3193202A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL284794D NL284794A (enrdf_load_stackoverflow) 1962-04-28
CH907562A CH395285A (de) 1962-04-28 1962-07-26 Verfahren und Vorrichtung zur Zuführung des Imprägniergemisches zu einer Träufelstelle
US236476A US3193202A (en) 1962-04-28 1962-11-06 Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE395285X 1962-04-28
US236476A US3193202A (en) 1962-04-28 1962-11-06 Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge

Publications (1)

Publication Number Publication Date
US3193202A true US3193202A (en) 1965-07-06

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US236476A Expired - Lifetime US3193202A (en) 1962-04-28 1962-11-06 Proportioning apparatus and method for mixing and feeding liquid resin impregnant with setting agent through single orifice discharge

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US (1) US3193202A (enrdf_load_stackoverflow)
CH (1) CH395285A (enrdf_load_stackoverflow)
NL (1) NL284794A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765605A (en) * 1972-11-30 1973-10-16 Gusmer Frederick Emil Apparatus for ejecting a mixture of liquids
FR2222387A1 (enrdf_load_stackoverflow) * 1973-03-19 1974-10-18 Du Pont
US4863276A (en) * 1986-05-13 1989-09-05 Total Foam Mixing device and method for its manufacture
US4951843A (en) * 1989-08-16 1990-08-28 Sealant Equipment & Engineering, Inc. Disposable mixing chamber liner and paddle for a dynamic mixing and dispensing gun

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002271A (en) * 1975-05-21 1977-01-11 The Willamette Valley Company Proportioning systems
US4366918A (en) * 1979-04-20 1983-01-04 Naka Seiki Company Limited Variable ratio metering, mixing and dispensing apparatus
DE3400280C1 (de) * 1984-01-05 1985-03-14 Reinhardt-Technik Gmbh & Co, 5883 Kierspe Dosier- und Mischvorrichtung fuer hochviskose Zweikomponenten-Materialien

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747932A (en) * 1952-12-31 1956-05-29 Victor F Volk Hose and methods of making the same
US2764565A (en) * 1951-12-24 1956-09-25 Bayer Ag Process and apparatus for the manufacture of polyurethane plastics
DE1015726B (de) * 1956-06-14 1957-09-12 Walther Fa Richard C Zusatzgeraet zur Mehrkomponenten-Spritzpistole
US2946488A (en) * 1957-12-26 1960-07-26 August L Kraft Metering and dispensing systems
US2958471A (en) * 1958-05-27 1960-11-01 Berndt W Zippel Spray gun to simultaneously spray two mediums from one nozzle
US2993648A (en) * 1959-01-05 1961-07-25 Phillips Petroleum Co Jet propelled spraying device
US3008808A (en) * 1958-07-21 1961-11-14 William C Hodges Coating applicator for dispensing chemically reactive materials
US3035775A (en) * 1958-06-09 1962-05-22 Ici Ltd Spray gun with mixing means
US3038750A (en) * 1960-11-28 1962-06-12 Polymer Eng Corp Spray gun
US3055596A (en) * 1960-09-13 1962-09-25 Sherwin Williams Co Apparatus for producing multicomponent surface coatings
US3057273A (en) * 1957-11-25 1962-10-09 Wald Ind Inc Apparatus for marking a surface
US3071293A (en) * 1959-05-15 1963-01-01 Baker Perkins Ltd Blending and dispensing of viscous substances
US3079090A (en) * 1959-04-27 1963-02-26 Herman W Decker Method and apparatus for applying liquids
US3083913A (en) * 1961-08-21 1963-04-02 Wald Ind Inc Apparatus for marking a surface

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764565A (en) * 1951-12-24 1956-09-25 Bayer Ag Process and apparatus for the manufacture of polyurethane plastics
US2747932A (en) * 1952-12-31 1956-05-29 Victor F Volk Hose and methods of making the same
DE1015726B (de) * 1956-06-14 1957-09-12 Walther Fa Richard C Zusatzgeraet zur Mehrkomponenten-Spritzpistole
US3057273A (en) * 1957-11-25 1962-10-09 Wald Ind Inc Apparatus for marking a surface
US2946488A (en) * 1957-12-26 1960-07-26 August L Kraft Metering and dispensing systems
US2958471A (en) * 1958-05-27 1960-11-01 Berndt W Zippel Spray gun to simultaneously spray two mediums from one nozzle
US3035775A (en) * 1958-06-09 1962-05-22 Ici Ltd Spray gun with mixing means
US3008808A (en) * 1958-07-21 1961-11-14 William C Hodges Coating applicator for dispensing chemically reactive materials
US2993648A (en) * 1959-01-05 1961-07-25 Phillips Petroleum Co Jet propelled spraying device
US3079090A (en) * 1959-04-27 1963-02-26 Herman W Decker Method and apparatus for applying liquids
US3071293A (en) * 1959-05-15 1963-01-01 Baker Perkins Ltd Blending and dispensing of viscous substances
US3055596A (en) * 1960-09-13 1962-09-25 Sherwin Williams Co Apparatus for producing multicomponent surface coatings
US3038750A (en) * 1960-11-28 1962-06-12 Polymer Eng Corp Spray gun
US3083913A (en) * 1961-08-21 1963-04-02 Wald Ind Inc Apparatus for marking a surface

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765605A (en) * 1972-11-30 1973-10-16 Gusmer Frederick Emil Apparatus for ejecting a mixture of liquids
FR2222387A1 (enrdf_load_stackoverflow) * 1973-03-19 1974-10-18 Du Pont
US4863276A (en) * 1986-05-13 1989-09-05 Total Foam Mixing device and method for its manufacture
US4951843A (en) * 1989-08-16 1990-08-28 Sealant Equipment & Engineering, Inc. Disposable mixing chamber liner and paddle for a dynamic mixing and dispensing gun
WO1991002593A1 (en) * 1989-08-16 1991-03-07 Sealant Equipment & Engineering, Inc. Disposable mixing chamber liner and paddle for a dynamic mixing and dispensing gun

Also Published As

Publication number Publication date
NL284794A (enrdf_load_stackoverflow)
CH395285A (de) 1965-07-15

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