GB1029394A - Worm machine - Google Patents

Worm machine

Info

Publication number
GB1029394A
GB1029394A GB24399/63A GB2439963A GB1029394A GB 1029394 A GB1029394 A GB 1029394A GB 24399/63 A GB24399/63 A GB 24399/63A GB 2439963 A GB2439963 A GB 2439963A GB 1029394 A GB1029394 A GB 1029394A
Authority
GB
United Kingdom
Prior art keywords
screw
thread
treatment chamber
degassing
wall
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
GB24399/63A
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.)
LILON ESTABLISHMENT
Original Assignee
LILON ESTABLISHMENT
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 LILON ESTABLISHMENT filed Critical LILON ESTABLISHMENT
Publication of GB1029394A publication Critical patent/GB1029394A/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
    • B29C48/76—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
    • 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
    • B29C48/03—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,029,394. Pug-mills. LILON ESTABLISHMENT. June 19, 1963 [June 20, 1962], No.24399/63. Heading B1C A pug-mill for thermoplastics has a degassing chamber 4 in which the screw section 5 of the rotor 11 has a thread the downstream flank of which makes a small angle, e.g. 15 degrees, with the screw axis while the upstream flank makes a much larger angle, e.g. a right-angle. Only a sector of the wall of the treatment chamber 4 is swept by the thread,see Fig. 3, and there is sufficient clearance between them to permit part of the material to pass over the thread. Part is also extended into the space 6 where it circulates and exposes an increased surface thus facilitating degassing. The wall of this part of the treatment chamber which co-operates with the screw may be made detachable and replaceable by one of different profile. The material is first kneaded by a screw 2 of conventional liapegoidal thread section and then passes through a diminishing annular gap between conical surfaces 1, 3; the gap may be adjusted by axial displacement of the rotor. A mill having a screw 5 with a pitch of 2 in., a thread depth of 0.12 in. and a periphenal speed of 12 f.p.s. will treat 330 1b. of polyamide per hour, the clearance between the screw 5 and the wall of the treatment chamber being 0.004 to 0.008 in. The treatment chamber 4 may, instead of degassing, be used for introducing gaseous, liquid or solid components to be mixed into the material.
GB24399/63A 1962-06-20 1963-06-19 Worm machine Expired GB1029394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH747062 1962-06-20

Publications (1)

Publication Number Publication Date
GB1029394A true GB1029394A (en) 1966-05-11

Family

ID=4325618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24399/63A Expired GB1029394A (en) 1962-06-20 1963-06-19 Worm machine

Country Status (4)

Country Link
BE (1) BE633898A (en)
DE (1) DE1208873B (en)
GB (1) GB1029394A (en)
NL (1) NL294343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616684A1 (en) * 2003-04-10 2006-01-18 The Japan Steel Works, Ltd. Screw-type kneading/extruding machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736058A (en) * 1956-02-28 Extrusion apparatus
DE1030011B (en) * 1953-08-29 1958-05-14 Dr Zareh Lorenian Seal for the annular gap around a cylindrical mandrel emerging from the bore of a screw in screw presses
DE1043205B (en) * 1957-02-27 1958-11-06 Buss Ag Auger
NL124077C (en) * 1959-04-10 1900-01-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616684A1 (en) * 2003-04-10 2006-01-18 The Japan Steel Works, Ltd. Screw-type kneading/extruding machine
EP1616684A4 (en) * 2003-04-10 2010-10-13 Japan Steel Works Ltd Screw-type kneading/extruding machine

Also Published As

Publication number Publication date
NL294343A (en) 1900-01-01
DE1208873B (en) 1966-01-13
BE633898A (en) 1900-01-01

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