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GB670639A - An improved manufacture of moulded articles of rubber and other curable plastic materials - Google Patents

An improved manufacture of moulded articles of rubber and other curable plastic materials

Info

Publication number
GB670639A
GB670639A GB216849A GB216849A GB670639A GB 670639 A GB670639 A GB 670639A GB 216849 A GB216849 A GB 216849A GB 216849 A GB216849 A GB 216849A GB 670639 A GB670639 A GB 670639A
Authority
GB
United Kingdom
Prior art keywords
rubber
mould
article
pattern
plates
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
GB216849A
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.)
PERCIVAL WILLIAM CLEPHAN
St Helens Cable & Rubber Compa
Original Assignee
PERCIVAL WILLIAM CLEPHAN
St Helens Cable & Rubber Compa
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 PERCIVAL WILLIAM CLEPHAN, St Helens Cable & Rubber Compa filed Critical PERCIVAL WILLIAM CLEPHAN
Priority to GB216849A priority Critical patent/GB670639A/en
Publication of GB670639A publication Critical patent/GB670639A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • B29C33/405—Elastomers, e.g. rubber
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
    • B29C2043/3652—Elastic moulds or mould parts, e.g. cores or inserts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

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

Abstract

670,639. Moulding articles from rubber &c. ST. HELENS CABLE & RUBBER CO., Ltd., CLEPHAN, P. W., and ENSOR, A. J. Jan. 25, 1950 [Jan. 26, 1949], No. 2168/49. Class 87 (ii) A method of manufacturing an article of rubber or other curable plastic material comprises pressing round a rigid pattern of the article a body (or bodies) of unvulcanized rubber compound which at the end of the pressing is substantially completely enclosed within rigid boundaries, vulcanizing the rubber in the enclosure formed by said boundaries while still under pressure, opening the mould thus formed, removing the pattern and then using the mould, enclosed in the same or a similar rigid enclosure, to manufacture the article, the mould being closed under pressure to shape the article and maintained under pressure during the curing of the article. The rigid boundaries are prefer ably comprised by a steel cylinder 2 and the plates, 3, 6 of a press. The pattern 1 may be of metal or close-grained timber, and the rubber bodies 4, 5 may be cut from a sheet of the required thickness. The body 5, when positioned, projects above the top of the cylinder 2. To prevent the two parts of the mould from uniting during pressing and vulcanizing, the face 7 of the body 4 is treated with french chalk. Alternatively the mould parts may be allowed to unite and the mould subsequently opened by cutting it. Heat and pressure are applied to the plates 3, 6 and maintained long enough to vulcanize the rubber. After vulcanizing the plates are separated and the body 5 removed, being separated from the pattern, by stretching if necessary, which is then removed from the body 4. If the pattern has a fairly large flat surface a single slab of rubber may be used for the mould and one side of the pattern be in direct contact with one of the press plates. The required quantity of unvulcanized rubber compound is placed in the mould space formed as above, the mould closed and put in the press and the rubber vulcanized by pressure and heat to produce the moulded article; or a passage or passages may be formed in the rubber body and an injection moulding process used. Locating pins 8 should preferably be used. Materials other than natural rubber mentioned as being suitable for the mould are ebonite and synthetic rubber or rubber-like substances. Where necessary, precautions are taken to prevent adhesion between the moulded article and the mould; the inner surfaces mav for example be treated with French chalk before the mould is filled.
GB216849A 1949-01-26 1949-01-26 An improved manufacture of moulded articles of rubber and other curable plastic materials Expired GB670639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB216849A GB670639A (en) 1949-01-26 1949-01-26 An improved manufacture of moulded articles of rubber and other curable plastic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB216849A GB670639A (en) 1949-01-26 1949-01-26 An improved manufacture of moulded articles of rubber and other curable plastic materials

Publications (1)

Publication Number Publication Date
GB670639A true GB670639A (en) 1952-04-23

Family

ID=9734774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB216849A Expired GB670639A (en) 1949-01-26 1949-01-26 An improved manufacture of moulded articles of rubber and other curable plastic materials

Country Status (1)

Country Link
GB (1) GB670639A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266105A (en) * 1962-04-24 1966-08-16 Jewel Engineering Leicester Li Method of and press for the manufacture of drawn sheet goods
EP0856389A2 (en) * 1997-01-31 1998-08-05 Shonan Design Co., Ltd. Form for manufacturing resin mold and clamping jig for resin mold
EP1082199A1 (en) * 1998-07-15 2001-03-14 Biomet, Inc. Cement mold for a temporary implant
EP2298543A3 (en) * 2009-09-17 2016-09-07 FUJIFILM Corporation Master model of lens array and method of manufacturing the same
CN109940803A (en) * 2019-04-15 2019-06-28 昆山市铁鹰橡胶制品有限公司 Production method, vulcanizing press and the vulcanizing equipment of rubber bound edge air filter screen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266105A (en) * 1962-04-24 1966-08-16 Jewel Engineering Leicester Li Method of and press for the manufacture of drawn sheet goods
EP0856389A2 (en) * 1997-01-31 1998-08-05 Shonan Design Co., Ltd. Form for manufacturing resin mold and clamping jig for resin mold
EP0856389A3 (en) * 1997-01-31 1998-12-30 Shonan Design Co., Ltd. Form for manufacturing resin mold and clamping jig for resin mold
EP1082199A1 (en) * 1998-07-15 2001-03-14 Biomet, Inc. Cement mold for a temporary implant
EP1082199A4 (en) * 1998-07-15 2004-09-08 Biomet Inc Cement mold for a temporary implant
EP2298543A3 (en) * 2009-09-17 2016-09-07 FUJIFILM Corporation Master model of lens array and method of manufacturing the same
CN109940803A (en) * 2019-04-15 2019-06-28 昆山市铁鹰橡胶制品有限公司 Production method, vulcanizing press and the vulcanizing equipment of rubber bound edge air filter screen

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