GB877300A - Improvements in moulding presses - Google Patents

Improvements in moulding presses

Info

Publication number
GB877300A
GB877300A GB2512658A GB2512658A GB877300A GB 877300 A GB877300 A GB 877300A GB 2512658 A GB2512658 A GB 2512658A GB 2512658 A GB2512658 A GB 2512658A GB 877300 A GB877300 A GB 877300A
Authority
GB
United Kingdom
Prior art keywords
piston
ram
injection
hehl
lever
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
GB2512658A
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.)
EUGEN HEHL
Original Assignee
EUGEN HEHL
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 EUGEN HEHL filed Critical EUGEN HEHL
Priority to GB2512658A priority Critical patent/GB877300A/en
Publication of GB877300A publication Critical patent/GB877300A/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
    • B29C45/03—Injection moulding apparatus
    • 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
    • B29C45/20—Injection nozzles
    • B29C45/23—Feed stopping equipment
    • B29C45/231—Needle valve systems therefor

Landscapes

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

Abstract

877,300. Injection moulding. HEHL, A., HEHL, K., and HEHL, E., [trading as ARBURG FEINGERATEFABRIK O.H.G. HEHL & SOHNE]. Aug. 5, 1958, No. 25126/58. Class 87(2). An injection moulding machine comprises a mould 49 secured to a base plate 1 by a clamping device 50, a supporting column 2 whose height is adjustable by means of a nut 4, a supporting arm 5 for a pressing device including a ram 7 which is reciprocable by a hand lever 10, a piston 28 controllable by the ram for feeding the raw material, and a heated injection cylinder 16. The piston 28 is movable and adjustable in a feed duet 27 leading from a hopper 26 to a feed shoot 29. The lever 10 operates the ram 7 through a rack 8 and pinion 11. Downward movement of ram 7 brings a conical portion 13 into engagement with a U-shaped member 39 which is connected through an arm 38, shaft 37 and lever 35 with the piston 28. The extent of the ram movement thus controls the amount of material fed by the piston 28 and also the descent of two slide members 44, 45 in the shoot 29. The members 44, 45 are rigidly connected by a rod 43 and movable upwardly against spring bias by a lug 46 engaging the conical member 13. An electric heater 22 is clamped to the injection cylinder 16 which has a filling funnel 15. A screen 23 has an aperture 24 for a thermometer. Cooling water flows through passages 21. During injection the cylinder 16 moves towards the mould 49 against the bias of a spring 19. A transparent removable screen 48 is provided. The injection nozzle 55, Fig. 5, is normally closed by a valve 61 which opens against the pressure of a spring 58 under injection pressure. The valve 61 is carried by a piston 59 sliding in a cavity 57 in a torpedo member 56.
GB2512658A 1958-08-05 1958-08-05 Improvements in moulding presses Expired GB877300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2512658A GB877300A (en) 1958-08-05 1958-08-05 Improvements in moulding presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2512658A GB877300A (en) 1958-08-05 1958-08-05 Improvements in moulding presses

Publications (1)

Publication Number Publication Date
GB877300A true GB877300A (en) 1961-09-13

Family

ID=10222633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2512658A Expired GB877300A (en) 1958-08-05 1958-08-05 Improvements in moulding presses

Country Status (1)

Country Link
GB (1) GB877300A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574897A (en) * 1969-03-21 1971-04-13 Mattel Inc Injection-molding apparatus
WO2020249641A1 (en) * 2019-06-13 2020-12-17 Stoky Aurelien Machine for injecting thermoplastic material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574897A (en) * 1969-03-21 1971-04-13 Mattel Inc Injection-molding apparatus
WO2020249641A1 (en) * 2019-06-13 2020-12-17 Stoky Aurelien Machine for injecting thermoplastic material
FR3097154A1 (en) * 2019-06-13 2020-12-18 Aurélien Stoky Thermoplastic injection machine

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