US2229422A - Spinning of highly viscous masses - Google Patents

Spinning of highly viscous masses Download PDF

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Publication number
US2229422A
US2229422A US292078A US29207839A US2229422A US 2229422 A US2229422 A US 2229422A US 292078 A US292078 A US 292078A US 29207839 A US29207839 A US 29207839A US 2229422 A US2229422 A US 2229422A
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US
United States
Prior art keywords
spinning
highly viscous
slot
chamber
mass
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
US292078A
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English (en)
Inventor
Schade Arthur
Weber Paul
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Application granted granted Critical
Publication of US2229422A publication Critical patent/US2229422A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Definitions

  • the present invention relates to a spinning device for the production of broad bands or foils from highly viscous pasty sp masses-
  • spinning devices are used in which the solution is extruded from a long spinning slot into a precipitating bath or upon a support.
  • the rate of extrusion through the middle portions of the slot will great- 5 ly exceed the rate at and'near its two ends.
  • the present invention consists in a spinning device for spinning highly viscous masses, especially solutions of cellulose in sulphuric acid which is free from the said drawbacks of the known spinning devices.
  • a constructional form of the new spinning device is shown in the drawing.
  • Fig. 1 shows a longitudinal section of the device and Fig. 2' a cross section along line 1-1 of Fig. 1.
  • the new spinning device contains a feed worm 1 in the spinning chamber for supplying the spinning mass to the spinning slot.
  • the axis of this worm should be parallel or substantially parallel to the length of the slot.
  • the mass being spun issues therefore at right angles to the axisof the 15 worm.
  • the worm should extend over the whole length of the slot and should be of such construction that at all parts of the slot the same mass of highly viscous spinning material is supplied per unit time and thus extruded uniformlyzo from the spinning slot.
  • a worm having in the axial direction a; continuously altering i.- e. decreasing or increasing feeding capacity.
  • a worm may be of conical shape or of decreasing pitch or may have a thread of decreasing cross section.
  • the drawing shows how such a -worm has to be arranged in the spinning chamber.
  • l is the spinning chamber of the spinning device which isoi conical shape
  • 2- are the sides of the spinning slot, which sides may be adjustable to vary the width of theslot
  • 4 is an inlet for charging the highly viscous spinning mass.
  • 3 is a conical feed worm the circumference of which touches the walls of the spinning chamber. The worm 3 is arranged in the spinning chamber in such manner that the feeding capacity constantly decreases from the end of the spinning chamber where the spinning mass is fed to the spinning chamber.
  • 5 is an opening by means of which it is possible if necessary to circulate by pumping the highly viscous mass during the spinning operation so as to obtain a constant mixing of the mass.
  • a spinning device for the production of foils comprising a spinning chamber provided with a spinning slot, means for feeding a spinning mass to the said spinning chamber and a 55 feed worm in the said spinning chamber having its axis substantially parallel to the longitudinal direction of the said spinning slot and extending over the whole length of the slot. said worm being constructed to supply the same quantity of a pasty spinning mass per unit time'to all parts of the said spinning slot.
  • a spinning device comprising a spinningchamber of circular cross section which is provided with a straight spinning slot extending over the length of the chamber, means for feeding a spinning mass to the one end of the said spinning chamber and a feed worm coaxial with and,
  • said feed worm having a feeding capacity continuously decreasing from the point where the spinning mass is fed to the spinning chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US292078A 1938-08-30 1939-08-26 Spinning of highly viscous masses Expired - Lifetime US2229422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2229422X 1938-08-30

Publications (1)

Publication Number Publication Date
US2229422A true US2229422A (en) 1941-01-21

Family

ID=7991302

Family Applications (1)

Application Number Title Priority Date Filing Date
US292078A Expired - Lifetime US2229422A (en) 1938-08-30 1939-08-26 Spinning of highly viscous masses

Country Status (3)

Country Link
US (1) US2229422A (en:Method)
BE (1) BE436163A (en:Method)
FR (1) FR859672A (en:Method)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437460A (en) * 1944-03-28 1948-03-09 Francisci Joseph De Alimentary paste extrusion apparatus
US2602187A (en) * 1946-03-11 1952-07-08 Nat Plastic Products Company Tape extrusion
DE1052673B (de) * 1957-08-29 1959-03-12 Hagedorn & Co Ag Osnabrueck A Breitschlitzduese zur Herstellung von Folien und Platten aus thermoplastischen Kunststoffen
US2978747A (en) * 1954-08-31 1961-04-11 Us Rubber Co Rubber shaping and vulcanizing apparatus
US3123859A (en) * 1961-03-27 1964-03-10 Barainsky
US4559104A (en) * 1983-09-16 1985-12-17 Kmw Aktiebolag Apparatus for discharging material
US5304331A (en) * 1992-07-23 1994-04-19 Minnesota Mining And Manufacturing Company Method and apparatus for extruding bingham plastic-type materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194125B (de) * 1957-08-29 1965-06-03 Hagedorn & Co Ag A Extruder-Breitschlitzduese zum Auspressen von Folien oder Platten aus Schmelzen von hochviskosen, thermoplastischen Kunststoff-massen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437460A (en) * 1944-03-28 1948-03-09 Francisci Joseph De Alimentary paste extrusion apparatus
US2602187A (en) * 1946-03-11 1952-07-08 Nat Plastic Products Company Tape extrusion
US2978747A (en) * 1954-08-31 1961-04-11 Us Rubber Co Rubber shaping and vulcanizing apparatus
DE1052673B (de) * 1957-08-29 1959-03-12 Hagedorn & Co Ag Osnabrueck A Breitschlitzduese zur Herstellung von Folien und Platten aus thermoplastischen Kunststoffen
US3123859A (en) * 1961-03-27 1964-03-10 Barainsky
US4559104A (en) * 1983-09-16 1985-12-17 Kmw Aktiebolag Apparatus for discharging material
US5304331A (en) * 1992-07-23 1994-04-19 Minnesota Mining And Manufacturing Company Method and apparatus for extruding bingham plastic-type materials

Also Published As

Publication number Publication date
BE436163A (en:Method) 1900-01-01
FR859672A (fr) 1940-12-24

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