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GB1190004A - Improvements in or relating to Extruders and Injection Moulding Machines - Google Patents

Improvements in or relating to Extruders and Injection Moulding Machines

Info

Publication number
GB1190004A
GB1190004A GB30633/66A GB3063366A GB1190004A GB 1190004 A GB1190004 A GB 1190004A GB 30633/66 A GB30633/66 A GB 30633/66A GB 3063366 A GB3063366 A GB 3063366A GB 1190004 A GB1190004 A GB 1190004A
Authority
GB
United Kingdom
Prior art keywords
barrel
screw
injection moulding
grooves
extrusion
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
GB30633/66A
Inventor
Michael George Munns
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.)
Peco Machinery Ltd
Original Assignee
Peco Machinery 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 Peco Machinery Ltd filed Critical Peco Machinery Ltd
Priority to GB30633/66A priority Critical patent/GB1190004A/en
Publication of GB1190004A publication Critical patent/GB1190004A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • 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
    • B29C48/25—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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/62—Barrels or cylinders
    • 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
    • B29C48/06—Rod-shaped
    • 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

Landscapes

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

Abstract

1,190,004. Extrusion/ejection moulding machines. PECO MACHINERY Ltd. 13 June, 1967 [7 July, 1966], No. 30633/66. Heading B5A. In an extrusion or injection moulding machine a barrel is provided with two internal helical grooves of equal pitch which are 180 degrees out of phase, and a screw in the barrel which rotates about an axis radially offset from the longitudinal axis of the barrel, the screw having a helical thread with a pitch half that of the grooves. In operation, the screw thread contacts a part of each groove at one point in each pitch length of the grooves. As the screw rotates the points of contact gradually move along the barrel, moving one pitch length for each revolution of the screw. The screw 11 is driven by a universal joint 12 from a drive shaft 13. Barrel 10 is heated by electric heaters 22 and is fed with pellets of plastics material from a hopper 20. As shown, the barrel connects with an extrusion orifice 21. For injection moulding, the barrel communicates with a further cylinder containing a plunger which forces plastics material into a mould.
GB30633/66A 1966-07-07 1966-07-07 Improvements in or relating to Extruders and Injection Moulding Machines Expired GB1190004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30633/66A GB1190004A (en) 1966-07-07 1966-07-07 Improvements in or relating to Extruders and Injection Moulding Machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30633/66A GB1190004A (en) 1966-07-07 1966-07-07 Improvements in or relating to Extruders and Injection Moulding Machines

Publications (1)

Publication Number Publication Date
GB1190004A true GB1190004A (en) 1970-04-29

Family

ID=10310689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30633/66A Expired GB1190004A (en) 1966-07-07 1966-07-07 Improvements in or relating to Extruders and Injection Moulding Machines

Country Status (1)

Country Link
GB (1) GB1190004A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218034A (en) * 1988-05-04 1989-11-08 Atomic Energy Authority Uk An extrusion process and apparatus therefor
EP3144121A4 (en) * 2014-05-15 2017-12-20 South China University of Technology Plasticizing delivery method and device using eccentric rotor and having pulsed volume deformation
CN118386534A (en) * 2024-07-01 2024-07-26 福建满山红新材料科技有限公司 Degradable packaging bag film blowing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218034A (en) * 1988-05-04 1989-11-08 Atomic Energy Authority Uk An extrusion process and apparatus therefor
GB2218034B (en) * 1988-05-04 1992-08-19 Atomic Energy Authority Uk An extrusion process
EP3144121A4 (en) * 2014-05-15 2017-12-20 South China University of Technology Plasticizing delivery method and device using eccentric rotor and having pulsed volume deformation
CN118386534A (en) * 2024-07-01 2024-07-26 福建满山红新材料科技有限公司 Degradable packaging bag film blowing device

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees