GB708201A - Improvements in or relating to injection molding machines - Google Patents

Improvements in or relating to injection molding machines

Info

Publication number
GB708201A
GB708201A GB2034/52A GB203452A GB708201A GB 708201 A GB708201 A GB 708201A GB 2034/52 A GB2034/52 A GB 2034/52A GB 203452 A GB203452 A GB 203452A GB 708201 A GB708201 A GB 708201A
Authority
GB
United Kingdom
Prior art keywords
spreader
cylinder
nozzle
apertures
injection
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
GB2034/52A
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.)
Lester Engineering Co
Original Assignee
Lester Engineering Co
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 Lester Engineering Co filed Critical Lester Engineering Co
Publication of GB708201A publication Critical patent/GB708201A/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
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices

Landscapes

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

Abstract

708,201. Injection-moulding machines. LESTER ENGINEERING CO. Jan. 24, 1952 [April 10, 1951], No. 2034/52. Class 87 (2) The spreader 6 has two or more (as shown, two) peculiarly-shaped channels 12 through which the material passes on its way to the nozzle. Figs. 2 and 3 are sections on lines 2-2 and 3-3 of Fig. 1, and Fig. 4 shows the shape of the body of moulding material in the injection cylinder. Each channel 12 is a continuation of the annular space 17 between the spreader and the cylinder and is bounded at the top and bottom by cylindrical walls 14, 15 and at the sides by walls 16 which converge circumferentially (see Fig. 2) towards two apertures 18. From the apertures 18 the material emerges as two rods 45 which pass along channels 29 and coalesce in the nozzle chamber 35. The spreader has an integral collar 9 which is clamped by bolts 27 between the nozzle 26 and the cylinder 2. An electric heater 20 and a thermocouple 21 are accommodated within the spreader. Heating elements 37 ... 41 and an insulating jacket 42 are provided.
GB2034/52A 1951-04-10 1952-01-24 Improvements in or relating to injection molding machines Expired GB708201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US708201XA 1951-04-10 1951-04-10

Publications (1)

Publication Number Publication Date
GB708201A true GB708201A (en) 1954-04-28

Family

ID=22097573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2034/52A Expired GB708201A (en) 1951-04-10 1952-01-24 Improvements in or relating to injection molding machines

Country Status (1)

Country Link
GB (1) GB708201A (en)

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