GB1249945A - Improvements in moulding thermosetting plastics materials - Google Patents
Improvements in moulding thermosetting plastics materialsInfo
- Publication number
- GB1249945A GB1249945A GB5097369A GB5097369A GB1249945A GB 1249945 A GB1249945 A GB 1249945A GB 5097369 A GB5097369 A GB 5097369A GB 5097369 A GB5097369 A GB 5097369A GB 1249945 A GB1249945 A GB 1249945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- matrix
- moulding
- article
- die
- recess
- 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
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
- 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
- B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles
-
- 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
- B29C33/485—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 cores or mandrels
-
- 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
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1,249,945. Compression moulding. K. J. MAWSON, and W. ASHCROFT. 31 July, 1970 [16 Oct., 1969], No. 50973/69. Heading B5A. Apparatus for moulding thermosetting plastics materials to form an article 14 having a bore from which an undercut recess extends into the article comprises a die 1, a punch 2, a laterally extensible matrix 3 having a recess-forming rib 4, and a matrix engaging member 9 detachably connected to a rod 10 movable axially of the die to retain the matrix in an extended condition during the moulding operation. The matrix comprises two pairs of segments 5, 5 and 6, 6 with converging sides 8 and providing a frustoconical cavity into which the frusto-conical member 9 is forced during the moulding. The punch has a recess 15 engaging the matrix sides. The moulded article is removed from the opened die by raising the rod whereby a shoulder 16 thereof lifts the article and matrix to allow the removal of the matrix segments.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5097369A GB1249945A (en) | 1969-10-16 | 1969-10-16 | Improvements in moulding thermosetting plastics materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5097369A GB1249945A (en) | 1969-10-16 | 1969-10-16 | Improvements in moulding thermosetting plastics materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1249945A true GB1249945A (en) | 1971-10-13 |
Family
ID=10458144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5097369A Expired GB1249945A (en) | 1969-10-16 | 1969-10-16 | Improvements in moulding thermosetting plastics materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1249945A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3515332A1 (en) * | 1985-04-27 | 1986-10-30 | Heinz Georg Hünibach Thun Baus | Thermoformed part, in particular shower tray |
US5456593A (en) * | 1992-10-06 | 1995-10-10 | Kleyn Die Engravers, Inc. | Molding apparatus for articles having internal undercuts |
EP0891850A1 (en) * | 1997-07-15 | 1999-01-20 | KSB Aktiengesellschaft | Method for producing a plastics hollow object |
WO2002060365A1 (en) * | 2001-02-01 | 2002-08-08 | Ab Kompositprodukter Vikmanshyttan | Method for producing a hearing protection cup, and tool used for its production |
-
1969
- 1969-10-16 GB GB5097369A patent/GB1249945A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3515332A1 (en) * | 1985-04-27 | 1986-10-30 | Heinz Georg Hünibach Thun Baus | Thermoformed part, in particular shower tray |
US5456593A (en) * | 1992-10-06 | 1995-10-10 | Kleyn Die Engravers, Inc. | Molding apparatus for articles having internal undercuts |
EP0891850A1 (en) * | 1997-07-15 | 1999-01-20 | KSB Aktiengesellschaft | Method for producing a plastics hollow object |
WO2002060365A1 (en) * | 2001-02-01 | 2002-08-08 | Ab Kompositprodukter Vikmanshyttan | Method for producing a hearing protection cup, and tool used for its production |
US6854466B2 (en) | 2001-02-01 | 2005-02-15 | Ab Kompositprodukter Vikmanshyttan | Method for producing a hearing protection cup, and tool used for its production |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1159013A (en) | Improvements in Moulding Apparatus. | |
GB1414291A (en) | Moulding deeply profiled articles | |
GB1267351A (en) | Improvements in plastics containers, methods of producing them and tooling apparatus therefor | |
GB923300A (en) | Improvements in and relating to machines for moulding soap, margarine and other plastic substances | |
GB1026668A (en) | Core punch and bottom stop therefor | |
GB994017A (en) | Dies, and method and apparatus for making them | |
GB1250051A (en) | Injection molding apparatus | |
GB1322224A (en) | Injection moulding apparatus | |
GB1249945A (en) | Improvements in moulding thermosetting plastics materials | |
GB1237122A (en) | Improvements in or relating to footwear | |
GB1320928A (en) | Moulds for parts of plastics material | |
GB983988A (en) | Machine and method for moulding heat-curable articles | |
GB1192873A (en) | Apparatus for Moulding Paste into a Case of a Tart or the like | |
GB1518109A (en) | Mould closing unit of an injection machine | |
GB1278876A (en) | Method of removing foam bodies from molds | |
GB946194A (en) | Injection unit for filling moulds of injection moulding machines | |
GB1090408A (en) | Improvements in or relating to apparatus for injection moulding | |
GB1136889A (en) | A device for extruding doughy material to form small sticks or small blocks | |
GB1098037A (en) | Improvements in and relating to moulding rubber articles | |
GB1178676A (en) | Improvements in or relating to Mould Assemblies | |
GB1342280A (en) | Injection moulding machines | |
JPS5610438A (en) | Forming mold | |
GB946775A (en) | Ejector device for dies | |
GB1084322A (en) | ||
GB1343935A (en) | Method and apparatus for orienting a rod or tube having a beveled end |