GB952877A - Worm or screw press - Google Patents

Worm or screw press

Info

Publication number
GB952877A
GB952877A GB23006/60A GB2300660A GB952877A GB 952877 A GB952877 A GB 952877A GB 23006/60 A GB23006/60 A GB 23006/60A GB 2300660 A GB2300660 A GB 2300660A GB 952877 A GB952877 A GB 952877A
Authority
GB
United Kingdom
Prior art keywords
worm
thread
housing
threads
conically
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
GB23006/60A
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.)
REGINALD HAGEN
Original Assignee
REGINALD HAGEN
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 REGINALD HAGEN filed Critical REGINALD HAGEN
Publication of GB952877A publication Critical patent/GB952877A/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel
    • 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
    • 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

Landscapes

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

Abstract

952,877. Continuous mixing appliances. R. HAGEN, [trading as KAUTEX-WERKE REINOLD HAGEN]. June 30, 1960 [Feb. 5, 1960], No. 23006/60. Heading B1C. [Also in Division B5] A worm or screw press for plasticizing and extruding plastic material, more especially thermoplastic synthetic plastics, comprises a housing having inlet and outlet openings and in which a worm is mounted for rotation about its longitudinal axis, the housing and the worm tapering conically over the whole or parts of their length and being displaceable backwards and forwards relatively to one another, for the purpose of regulating the throughput capacity of the press, and the worm, over its entire length or parts thereof, having opposite threads in addition to the normal threads acting in the intended conveying direction. The worm is tapered conically in the same direction as the housing, either in the conveying direction or in the opposite direction, and has the same conicity as the housing or else is tapered to a smaller degree. In the embodiment shown in Fig. 2, the housing 11 tapers conically from the inlet 18 to the outlet 21 except for the portion 25 immediately in front of the outlet 21 which is cylindrical. The worm 24 tapers in a similar manner and on its cylindrical portion has a thread 27 acting opposite to the conveying direction 20 in addition to a thread 26 acting in the conveying direction. Whereas the thread 26 is single-start on the conically-tapering portion of the worm 24, it is three-start on the cylindrical portion, as is thread 27, the two threads having the same pitch on this cylindrical portion. The thread 27 is milled in the core of the worm remaining after the thread 26 has been cut. The worm 24 is displaceable axially relative to the housing 11 to vary the gap between the two. The intersections of the oppositely-directed threads 26, 27 result in a number of continuous grooves extending longitudinally of the worm which promote an accelerated transport of the material while efficient kneading and mixing is simultaneously effected by the oppositely-directed threads.
GB23006/60A 1960-02-05 1960-06-30 Worm or screw press Expired GB952877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0039834 1960-02-05

Publications (1)

Publication Number Publication Date
GB952877A true GB952877A (en) 1964-03-18

Family

ID=7221845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23006/60A Expired GB952877A (en) 1960-02-05 1960-06-30 Worm or screw press

Country Status (4)

Country Link
BE (1) BE588461A (en)
FR (1) FR1253488A (en)
GB (1) GB952877A (en)
LU (1) LU38309A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318848A (en) * 1963-06-20 1967-05-09 Celanese Corp Melt hydrolysis of oxymethylene copolymers
BE681175A (en) * 1966-03-03 1966-10-31
IT1221893B (en) * 1986-05-30 1990-07-12 Giuseppe Gagliani CONTINUOUS INDUSTRIAL MIXING PROCEDURE THROUGH SPECIAL CONFORMATION OF THE EXTRUDER SCREW

Also Published As

Publication number Publication date
FR1253488A (en) 1961-02-10
BE588461A (en) 1960-07-01
LU38309A1 (en) 1900-01-01

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