GB618536A - Improvements in or relating to extrusion apparatus - Google Patents

Improvements in or relating to extrusion apparatus

Info

Publication number
GB618536A
GB618536A GB22728/46A GB2272846A GB618536A GB 618536 A GB618536 A GB 618536A GB 22728/46 A GB22728/46 A GB 22728/46A GB 2272846 A GB2272846 A GB 2272846A GB 618536 A GB618536 A GB 618536A
Authority
GB
United Kingdom
Prior art keywords
die
screw
mandrel
tubes
thread
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
Application number
GB22728/46A
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.)
BX Plastics Ltd
Original Assignee
BX Plastics Ltd
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 BX Plastics Ltd filed Critical BX Plastics Ltd
Priority to GB22728/46A priority Critical patent/GB618536A/en
Publication of GB618536A publication Critical patent/GB618536A/en
Expired legal-status Critical Current

Links

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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/131—Curved articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

618,536. Extrusion apparatus. B. X. PLASTICS, Ltd., and NICHOLAS, D. C. July 30, 1946, No. 22728. [Class 87 (ii)] In apparatus for the extrusion of screw-threaded tubes or coils of plastic material, rubber, or rubber like material, a feed screw 2 is attached to or made integral with a mandrel 12 protruding up to or beyond the extrusion orifice of a die 5, a helical thread being provided either on the internal surface of the die or on the mandrel. The die which, as shown, has a screw-threaded bore 9 is held in an annular mounting 4 by means of four adjusting screws 6 and a lock nut 7. The die can be adjusted to vary the width of the annular feed passage 14 whereby the amount of plastic fed to it is controlled. Roughening of the internal surface of the die 5 lessens slip of the plastic material as it passes through the screw-threaded bore 9 so that the resultant tube will have an external screw-thread on it. If the diameter of the mandrel is made approximately equal to the minimum diameter of the screw-thread a coil will be extruded. For the production of internally threaded tubes the mandrel 12 instead of the die is given a screw thread. Wire or other metal reinforcement to be embodied in or wound upon the tubes or coils may be fed forward through the stationary or rotary parts of the die, and the die member 5 may contain one or more extra conduits through which threads, strips or tubes, which are not rotated, may be extruded on to the coils etc. to produce decorative effects.
GB22728/46A 1946-07-30 1946-07-30 Improvements in or relating to extrusion apparatus Expired GB618536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22728/46A GB618536A (en) 1946-07-30 1946-07-30 Improvements in or relating to extrusion apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22728/46A GB618536A (en) 1946-07-30 1946-07-30 Improvements in or relating to extrusion apparatus

Publications (1)

Publication Number Publication Date
GB618536A true GB618536A (en) 1949-02-23

Family

ID=10184155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22728/46A Expired GB618536A (en) 1946-07-30 1946-07-30 Improvements in or relating to extrusion apparatus

Country Status (1)

Country Link
GB (1) GB618536A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801441A (en) * 1955-03-10 1957-08-06 Howard M Wadsworth Mechanism for producing internally threaded tubing
US2989778A (en) * 1955-02-11 1961-06-27 Frenkel Ag C D Means for making strengthened pipe from drawable material
US3153821A (en) * 1961-10-16 1964-10-27 Anaconda Wire & Cable Co Continuous casting apparatus for casting corrugated cylinders
US3289250A (en) * 1963-07-26 1966-12-06 Henry J Zernay Extruder
WO1981000823A1 (en) * 1979-09-28 1981-04-02 Soennichsen Roervalseverk Assembly for extruding pipe
US4306848A (en) * 1979-05-23 1981-12-22 Hpm Corporation Injection molding apparatus having low shear screw
WO1985001244A1 (en) * 1983-09-23 1985-03-28 A/S So^/Nnichsen Ro^/Rvalseverket Extruder assembly
EP0183153A1 (en) * 1984-11-23 1986-06-04 NATURIN-WERK Becker & Co. Method of producing an artificial, irregularly shaped collagen sausage casing and device for carrying out this method
CN111113848A (en) * 2019-12-24 2020-05-08 江苏恒源园艺用品有限公司 Rotary die device for metal-coated plastic horticultural tube
CN111486275A (en) * 2020-05-29 2020-08-04 沧州明珠塑料股份有限公司 Enhanced thermoplastic thermal insulation pipe, manufacturing method and coating machine head
CN111730871A (en) * 2020-07-05 2020-10-02 武汉市新洲三角塑料制品有限公司 Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989778A (en) * 1955-02-11 1961-06-27 Frenkel Ag C D Means for making strengthened pipe from drawable material
US2801441A (en) * 1955-03-10 1957-08-06 Howard M Wadsworth Mechanism for producing internally threaded tubing
US3153821A (en) * 1961-10-16 1964-10-27 Anaconda Wire & Cable Co Continuous casting apparatus for casting corrugated cylinders
US3289250A (en) * 1963-07-26 1966-12-06 Henry J Zernay Extruder
US4306848A (en) * 1979-05-23 1981-12-22 Hpm Corporation Injection molding apparatus having low shear screw
WO1981000823A1 (en) * 1979-09-28 1981-04-02 Soennichsen Roervalseverk Assembly for extruding pipe
WO1985001244A1 (en) * 1983-09-23 1985-03-28 A/S So^/Nnichsen Ro^/Rvalseverket Extruder assembly
EP0183153A1 (en) * 1984-11-23 1986-06-04 NATURIN-WERK Becker & Co. Method of producing an artificial, irregularly shaped collagen sausage casing and device for carrying out this method
CN111113848A (en) * 2019-12-24 2020-05-08 江苏恒源园艺用品有限公司 Rotary die device for metal-coated plastic horticultural tube
CN111486275A (en) * 2020-05-29 2020-08-04 沧州明珠塑料股份有限公司 Enhanced thermoplastic thermal insulation pipe, manufacturing method and coating machine head
CN111730871A (en) * 2020-07-05 2020-10-02 武汉市新洲三角塑料制品有限公司 Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

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