GB795422A - Molding press - Google Patents

Molding press

Info

Publication number
GB795422A
GB795422A GB19736/56A GB1973656A GB795422A GB 795422 A GB795422 A GB 795422A GB 19736/56 A GB19736/56 A GB 19736/56A GB 1973656 A GB1973656 A GB 1973656A GB 795422 A GB795422 A GB 795422A
Authority
GB
United Kingdom
Prior art keywords
head
platen
plate
press
die
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
GB19736/56A
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.)
Aetna Standard Engineering Co
Original Assignee
Aetna Standard 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
Priority to US524752A priority Critical patent/US2821747A/en
Application filed by Aetna Standard Engineering Co filed Critical Aetna Standard Engineering Co
Publication of GB795422A publication Critical patent/GB795422A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/041Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/049Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp

Abstract

795,422. Injection-moulding machines. AETNA-STANDARD ENGINEERING CO. June 26, 1956 [July 27, 1955], No. 19736/56. Class 87(2). A press comprises a lower platen 15 carried by a vertically-reciprocable hydraulic ram 12, a tilting head 23 carrying an upper platen 26, and a tilting intermediate press plate 67. The head and plate are tiltable so that parts carried thereby may be visible and accessible. Side clamps 50 releasably secure the head in closed position. The invention is illustrated in connection with a transfer moulding press in which a lower die 17 is mounted on platen 15, an upper die 68 is carried by the intermediate press plate 67, and pressing plungers 28 are carried by the head 23. When the press is closed by raising the ram 12, the plate 67 is lifted and the plungers 28 press rubber stock 93 through passages in die 68 into mould cavities formed in dies 17 and 68. The head 23 is mounted on brackets 24 supported by bearings on a stationary shaft 21 carried by uprights 20. The head 23 carries also a bracket 30 connected to a pin 31 at the end of a piston rod 32 reciprocable by hydraulic cylinder and piston 23. When rod 32 is pulled down, the head tilts. The intermediate press plate 67 is similarly mounted on the shaft 21, being tilted by means of hydraulic cylinder and piston mechanisms. The head and intermediate plate may be held in the tilted positions either by pressure in their hydraulic cylinders, or by latch members 38, 81 (the latter not shown). At the end of the moulding operation, the lower platen 15 and the ram 12 are pulled downwardly by hydraulic cylinder and piston mechanisms 62 acting on arms 61 attached to the platen 15, and the side clamps 50 are turned about their pivots 51, to release the head 23, by the engagement of cams 59 on the arms 61 with rollers 65 on the side clamps. (The clamps are closed for the moulding operation by the engagement of rollers 58 on brackets 60 on the arms 61 with cams 59 on the clamps.) Lowering of the platen 15 separates the die 68 from either the lower die 17 or from the die members 28 on the upper platen. In the first alternative, separation of the two dies results from the fact that the platen 15 can move down further than the plate 67, In the second alternative, fluid pressure cylinders 90 on the upper head 23 actuate piston rods 91 engaging the plate 67, to move the latter away from the upper platen.
GB19736/56A 1955-07-27 1956-06-26 Molding press Expired GB795422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US524752A US2821747A (en) 1955-07-27 1955-07-27 Molding press

Publications (1)

Publication Number Publication Date
GB795422A true GB795422A (en) 1958-05-21

Family

ID=24090536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19736/56A Expired GB795422A (en) 1955-07-27 1956-06-26 Molding press

Country Status (2)

Country Link
US (1) US2821747A (en)
GB (1) GB795422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013627A1 (en) * 1979-01-12 1980-07-23 Bipel Limited Improvements in and relating to compression moulding presses

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954597A (en) * 1957-05-28 1960-10-04 Marvin I Glass Molding toy
US3140513A (en) * 1961-07-19 1964-07-14 Wright Die spotting or like press
US3295167A (en) * 1963-04-22 1967-01-03 Weyerhaeuser Co Apparatus for pressing composite consolidated articles
US3348606A (en) * 1965-06-15 1967-10-24 Nat Acme Co Molding machine transfer mechanism
US3384928A (en) * 1966-02-18 1968-05-28 Siempelkamp Gmbh & Co Vulcanizing press
US7901201B2 (en) * 2005-07-25 2011-03-08 Kojima Press Industry Co., Ltd. Press-molding machine and press-molding method
US20070113950A1 (en) * 2005-11-22 2007-05-24 International Business Machines Corporation Method and apparatus for providing uniaxial load distribution for laminate layers of multilayer ceramic chip carriers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000406A (en) * 1933-08-02 1935-05-07 Nat Rubber Machinery Co Vulcanizer
US2389169A (en) * 1942-05-20 1945-11-20 French Oil Mill Machinery Hydraulic motor
FR956900A (en) * 1946-12-14 1950-02-09
US2680881A (en) * 1951-10-11 1954-06-15 Stanley G Mock Compression molding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013627A1 (en) * 1979-01-12 1980-07-23 Bipel Limited Improvements in and relating to compression moulding presses

Also Published As

Publication number Publication date
US2821747A (en) 1958-02-04

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