US3305894A - Treatment device for pliable masses - Google Patents

Treatment device for pliable masses Download PDF

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Publication number
US3305894A
US3305894A US410970A US41097064A US3305894A US 3305894 A US3305894 A US 3305894A US 410970 A US410970 A US 410970A US 41097064 A US41097064 A US 41097064A US 3305894 A US3305894 A US 3305894A
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US
United States
Prior art keywords
sections
worm
shaft
section
seated
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
US410970A
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English (en)
Inventor
Boden Helmut
Ocker Herbert
Pfaff Gerhard
Worz Wolfgang
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.)
Werner and Pfleiderer GmbH
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Werner and Pfleiderer GmbH
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Filing date
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Classifications

    • 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
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
    • 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
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • 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
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/246—Screw constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the present invention relates to a device including a rotary worm shaft or several coacting parallel worm shafts for continuously feeding, mixing, kneading, degassing and extruding or otherwise treating materials in a pliable state, particularly thermoplastic synthetic plastics such as polyamid or polyolefine and more yparticularly to devices of the general kind above referred to in which different worm sections each designed for a specific treatment operation, are lengthwise slidably mounted upon a common drive shaft secured against rotation in reference to the shaft.
  • Devices of the general kind above referred to may be adapted for different specific treatments of different masses by exchanging selected ones of the worm sections of the device by other worm sections which may have, for instance, another pitch to ⁇ vary the feeding capacity of the respective worm section, the kneading or mixing action, etc., of the device as required.
  • Exchange of selected worm sections is effected by pulling olf the worm section or sections to be exchanged from one end of the common drive shaft and then reassembling the sections after exchanging one or several sections.
  • a more specific object of the invention is to provide a novel and improved device of the general kind above referred to, the feeding section or any other selected worm section of which can be exchanged without requir ing a disassembly and reassembly of all the other worm sections of the device.
  • Another more specific object of the invention is to provide a novel and improved treatment device of the general kind above referred to which is so arranged that when one of the worm sections such as the feeding section is to be exchanged, all or at least several of the other worm sections may be withdrawn as a unit together with a 'common drive shaft section and also reinstalled as a unit.
  • the exemplified device comprises two Worm shafts disposed parallel to each other in coacting relationship in a housing 10.
  • Each worm shaft includes worm sections 10, 11, 12, 13, 14 and 10', 11', 12', 13', 14' seated on a common drive shaft 4 and 4 respectively.
  • the worm sections are lengthwise slidable on the shafts but secured against rotation in reference to the shafts, for instance by suitable and conventional key means 15 and 15'.
  • vWorm sections 10 and 10' constitute the feeding sec tion of the device disposed below a feed port or hopper 1; worm sections 11 and 11 constitute a mixing and kneading section which also has a plasticizing action; and worm sections 12 and 12 shown as having a much lower pitch than the mixing and kneading section retard the passage of the mass through the housing to obtain the required dwell time of the mass within the operational range of worm section b.
  • Worm sections 13 and 13' which have a steeper pitch than worm sections 12 and 12' convey the mass from the worm sections 12 and 12' to the extruding worm sections 14 and 14' at a very loW pressure.
  • a degassing port 2 communicates with worm sections 13 and 13 to remove any gases occluded in the mass.
  • the treated mass is pressed out through a discharge nozzle cap can 3 of suitable design. All the worm sections are axially locked on the drive shaft 4 and 4' respectively by any suitable means such as hexagonally headed screws Sand 5' respectively screwed into the respective end face of the shafts.
  • both shafts are divided in two shaft sections at the partition line x thus providing a long shaft section 4a and a short shaft section 4b.
  • the short shaft section seats worm sections 10 and 10' while all the other worm sections are seated on the long shaft section.
  • the two shaft sections are releasable secured to each other by suitable fastening means shown as a screw bolt 6 in the short shaft section screwable into a threaded bore in the adjacent end face of the long shaft section. Screw bolt 6 extends through the outside wall 10a of housing 10 and is locked in position by nuts 7 and 7' respectively, or by any other suitable locking means.
  • the housing is composed of sections 20 and 21 secured to each other ⁇ by conventional fastening means such as screws 22.
  • Housing section 20 is secured to wall 10a by conventional fastening means such as screws 23 and housing section 21 to nozzle cap 3 by conventional fastening means such as screws 24.
  • the fastening means between the two shaft sections 4a. and 4b of each worm shaft are released as previously described.
  • the long shaft sections 4a and the worm sections 11, 11'; 12, 12'; 13, 13'; and 14, 14' seated thereon can now be withdrawn from the short shaft sections 4b as a unit and also reinstalled as a unit after an exchange of sections 10, 10' by other worm sections which, for instance, may have a different pitch to change the feeding capacity of the feed section.
  • Withdrawal of the long shaft sections can also be effected after dismantling the housing at flanges 10b by loosening screws 22.
  • the concept of the invention is not limited to a division of the drive shafts within the range of feed section a but the drive shafts may also be divided within the range of any other worm sections and into more than two sections.
  • a device for continuously feeding and treating a mass in a pliable state by subjecting the mass successively to different treatment operations comprising a rotary worm shaft, said worm shaft including a rotary drive shaft divided into at least two shaft sections, and a plurality of worm sections, at least one worm section being -fully seated on one of said shaft sectionsaxially freely slidable thereon but secured against lrotation in reference thereto and several worm sections being seated on the other shaft section axially slidable thereon but secured against rotation in reference thereto, and fastening means between the adjacent ends of the shaft sections operable from the outside of said device for releasably securing the two shaft sections to each other and the worm sections thereon in fixed axial positions in reference to each other and the shaft sections whereby the two shaft sections and the worm sections seated thereon are separable by sliding the worm sections along the shaft sections upon releasing said fastening means for the purpose of replacing said one worm section seated on said one shaft section.
  • said fastening means comprise an engaging fastening element on one of said shaft sections and a receiving fastening element on the other shaft section, said engaging fastening element protruding from the outer end of the respective shaft section for tightening and loosening the engaging fastening element in the receiving fastening element from the outside of the device.
  • said fastening means comprise a screw bolt lengthwise extending through one shaft section ⁇ from the outer end thereof and screwable into a threaded bore in the end face of the other shaft section, and means on the outside of the device for tightening and loosening said screw bolt;
  • a device for continuously feeding and treating a mass in a pliable state lby subjecting the mass successively to different treatment operations comprising a rotary worm shaft, said worm shaft including a rotary drive shaft divided into a short shaft section and a longer shaft section, a Worm section seated on the short shaft section axially slidable but secured against rotation in reference thereto, several worm sections seated on the longer shaft section axially slidable but secured against rotation in reference thereto, and fastening means between the adjacent ends o-f the shaft sections operable from the outside of the device for releasably securing the two shaft sections to each other and the Worm sections thereon in xed axial positions whereby the longer shaft section with the several Worm sections supported thereon is separable from the short shaft section as a unit upon releasing said fastening means for exchanging said worm section seated on said short shaft section.
  • said fastening means comprise an engaging fastening member on said short shaft section and a receiving fastening member on said longer shaft section, said engaging fastening member protruding from the outer end of the short shaft section for tightening and loosening the engaging fastening member in the receiving fastening member.
  • said fastening means comprises a screw bolt lengthwise extending through the short shaft section from the outer end thereof and screwable into a threaded bore in the adjacent end face of the longer shaft section, and means on the outside of the device for tightening and loosening said screw bolt.
  • a device wherein said Worm section seated on the short shaft section is a feeding worm section, and the several worm sections on the longer shaft section are worm sections different one from another for subjecting the mass to be treated to different treatment operations.
  • a device comprising a housing, said worm shafts being rotatably supported in said housing, and said fastening means protruding from one side of the housing for operation of the fastening means.
  • each of said fastening means comprises an engaging fastening member on the respective short shaft section and a receiving fastening member on the respective longer shaft section, each of said engaging fastening members protruding from the outer end of the respective short shaft section and the housing for tightening and loosening the engaging fastening member in the respective receiving fastening member.
  • each of said fastening means comprises a screw bolt lengt-hwise extending through the respective short shaft section -K from the outer end thereof and screwable into a threaded bore in the adjacent end face of the respective longer shaft sectlon, and means on the outside of the device for tlghtening and loosening said screw bolts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US410970A 1963-11-27 1964-11-13 Treatment device for pliable masses Expired - Lifetime US3305894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW35723A DE1214386B (de) 1963-11-27 1963-11-27 Zwei- oder mehrwellige Schneckenmaschine

Publications (1)

Publication Number Publication Date
US3305894A true US3305894A (en) 1967-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
US410970A Expired - Lifetime US3305894A (en) 1963-11-27 1964-11-13 Treatment device for pliable masses

Country Status (6)

Country Link
US (1) US3305894A (fr)
BE (1) BE655843A (fr)
CH (1) CH414135A (fr)
DE (1) DE1214386B (fr)
GB (1) GB1041479A (fr)
NL (2) NL6412041A (fr)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391232A (en) * 1964-08-12 1968-07-02 Du Pont Forming process regulation
US3565403A (en) * 1968-09-05 1971-02-23 Intercole Automation Inc Continuous mixer
US3643928A (en) * 1970-03-04 1972-02-22 Fantastic Fudge Inc Food mixing machine
US3744770A (en) * 1970-09-04 1973-07-10 Werner & Pfleiderer Screw extruder
US3764114A (en) * 1970-09-12 1973-10-09 Werner & Pfleiderer Process for continuously producing soap and device for carrying out the process
US4025058A (en) * 1975-08-14 1977-05-24 Dai Nippon Toryo Co., Ltd. Continuous extruder for thermosetting resins
US4100618A (en) * 1975-05-06 1978-07-11 Colgate-Palmolive Company Apparatus for high intensity shear refining of soap
US4167339A (en) * 1974-12-03 1979-09-11 Hermann Berstorff Maschinenbau Gmbh Screw comprising a plurality of hollow screw components juxtaposed in end-to-end relation
US4176967A (en) * 1977-06-15 1979-12-04 Hermann Berstorff Maschinenbau Gmbh Apparatus for the preparation of thermoplastic materials
US4527899A (en) * 1983-06-14 1985-07-09 Blach Josef A Processing shaft for machines for extruding, kneading, dispersing, mixing or homogenizing, in particular, plastics materials
US4600514A (en) * 1983-09-15 1986-07-15 Chem-Technics, Inc. Controlled gel time for solidification of multi-phased wastes
US4600311A (en) * 1984-03-08 1986-07-15 Clextral Material-processing screw machine
US4623469A (en) * 1983-09-15 1986-11-18 Chem-Technics, Inc. Method for rendering hazardous wastes less permeable and more resistant to leaching
US4820469A (en) * 1985-07-09 1989-04-11 Colortech Inc. Method and apparatus for producing thermoplastic and products produced therefrom
US4826323A (en) * 1988-05-23 1989-05-02 Apv Chemical Machinery Inc. Self-wiping continuous mixer with enlarged bore section
US5265955A (en) * 1991-04-15 1993-11-30 Pomini Farrel S.P.A. Machine for the extrusion of thermoplastic polymers and the like comprising an internal mixer
US5314245A (en) * 1992-02-28 1994-05-24 Blach Josef A Arrangement for mixing and kneading of materials with a screw shaft and at least one screw element connected with one another by wedges
US5573332A (en) * 1993-09-02 1996-11-12 Werner & Pfleiderer Gmbh Screw element for a screw-like extrusion machine
EP0822054A1 (fr) * 1996-08-02 1998-02-04 Techint Compagnia Tecnica Internazionale S.P.A. Procédé et appareil pour mélanger et extruder en continu des matériaux polymères avec prémélange sec desdits matériaux
US5797677A (en) * 1994-06-20 1998-08-25 Werner & Pfleiderer Gmbh Screw-type extruding machine having a screw element defining a groove with an expansion region at each end thereof
EP1033217A2 (fr) * 1999-03-02 2000-09-06 Kabushiki Kaisha Kobe Seiko Sho Rotor pour mélangeur et mélangeur l'utilisant
US20040213077A1 (en) * 2003-04-23 2004-10-28 Robert Dray Plastic screw
US20130059053A1 (en) * 2008-09-11 2013-03-07 LaVon Wenger Method and apparatus for producing fully cooked extrudates with significantly reduced specific mechanical energy inputs
US20130285279A1 (en) * 2012-04-27 2013-10-31 King Abdulaziz City For Science And Technology Integrated single and twin screw extruder
CN103722765A (zh) * 2013-12-26 2014-04-16 华南理工大学 木质纤维再生型材成型装置
EP2805805A1 (fr) * 2013-05-21 2014-11-26 Coperion GmbH Machine à vis sans fin à plusieurs arbres pour la préparation de matériaux, notamment de matériaux en matière synthétique
US20150016211A1 (en) * 2013-07-09 2015-01-15 Wenger Manufacturing, Inc. Steam/water static mixer injector for extrusion equipment
CN106474967A (zh) * 2015-08-28 2017-03-08 丰田自动车株式会社 捏合机和使用其的包含电极活性物质的电极体的制造方法
US11072104B2 (en) * 2014-10-27 2021-07-27 Shibaura Machine Co., Ltd. Screw for extruder comprising a passage crossing over between adjacent cylindrical bodies
US11110638B2 (en) * 2014-05-08 2021-09-07 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
US11220022B2 (en) 2014-04-24 2022-01-11 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
US11224991B2 (en) 2014-04-24 2022-01-18 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method
US11229889B2 (en) 2015-04-28 2022-01-25 Shibaura Machine Co., Ltd. Extruder screw with alternately-arranged conveyance portions and extruders and extrusion methods using the extruder screw
US11230033B2 (en) 2015-04-28 2022-01-25 Shibaura Machine Co., Ltd. Extruder screw including conveyance portions and paths within the conveyance portions, extruder, and extrusion method
US11400633B2 (en) * 2014-04-10 2022-08-02 Toshiba Kikai Kabushiki Kaisha Extruder screw passages, extruder and extrusion method
US11565440B2 (en) * 2014-05-08 2023-01-31 Shibaura Machine Co., Ltd. Kneading apparatus with first and second extruders
US11752682B2 (en) 2014-05-08 2023-09-12 Shibaura Machine Co., Ltd. Extruder screw having paths within the screw, extruder, and extrusion method

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US3575382A (en) * 1967-01-12 1971-04-20 Baker Perkins Inc Multipurpose continuous mixing and/or kneading apparatus
US3719350A (en) * 1971-03-22 1973-03-06 Baker Perkins Inc Self-cleaning venting section for continuous mixers
DE3630248C2 (de) * 1986-09-02 1995-10-12 Berlin Bio Heizstoffwerk Verfahren zur Herstellung eines festen Brennstoffs
DE102016219823B3 (de) * 2016-10-12 2018-01-04 Coperion Gmbh Schneckenmaschine-Getriebe-Anordnung und Verfahren zur Wartung von Schneckenwellen einer derartigen Schneckenmaschine-Getriebe-Anordnung

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US2200997A (en) * 1937-01-29 1940-05-14 Vernon E Royle Extruding machine
US2541151A (en) * 1947-07-09 1951-02-13 Joseph Brandt & Bro Inc Narrow strip material adapted for making hat bodies
US2607077A (en) * 1951-06-28 1952-08-19 Dow Chemical Co Mixing torpedo for plastics extruders
US2662243A (en) * 1950-07-07 1953-12-15 Farrel Birmingham Co Inc Blending and/or warming extrusion device for plastics or the like
US2732587A (en) * 1956-01-31 greene
US2813302A (en) * 1954-10-20 1957-11-19 Gen Tire & Rubber Co Method of and apparatus for homogenizing plastic or plasticizable materials
US3174185A (en) * 1961-05-01 1965-03-23 Metal Box Co Ltd Extrusion of molten thermoplastic material

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Publication number Priority date Publication date Assignee Title
US2732587A (en) * 1956-01-31 greene
US2200997A (en) * 1937-01-29 1940-05-14 Vernon E Royle Extruding machine
US2541151A (en) * 1947-07-09 1951-02-13 Joseph Brandt & Bro Inc Narrow strip material adapted for making hat bodies
US2662243A (en) * 1950-07-07 1953-12-15 Farrel Birmingham Co Inc Blending and/or warming extrusion device for plastics or the like
US2607077A (en) * 1951-06-28 1952-08-19 Dow Chemical Co Mixing torpedo for plastics extruders
US2813302A (en) * 1954-10-20 1957-11-19 Gen Tire & Rubber Co Method of and apparatus for homogenizing plastic or plasticizable materials
US3174185A (en) * 1961-05-01 1965-03-23 Metal Box Co Ltd Extrusion of molten thermoplastic material

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391232A (en) * 1964-08-12 1968-07-02 Du Pont Forming process regulation
US3565403A (en) * 1968-09-05 1971-02-23 Intercole Automation Inc Continuous mixer
US3643928A (en) * 1970-03-04 1972-02-22 Fantastic Fudge Inc Food mixing machine
US3744770A (en) * 1970-09-04 1973-07-10 Werner & Pfleiderer Screw extruder
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BE655843A (fr) 1965-03-16
CH414135A (de) 1966-05-31
NL6412041A (fr) 1965-05-28
GB1041479A (en) 1966-09-07
NL131340C (fr) 1900-01-01
DE1214386B (de) 1966-04-14

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