GB1418621A - Injection moulding tool - Google Patents
Injection moulding toolInfo
- Publication number
- GB1418621A GB1418621A GB632274A GB632274A GB1418621A GB 1418621 A GB1418621 A GB 1418621A GB 632274 A GB632274 A GB 632274A GB 632274 A GB632274 A GB 632274A GB 1418621 A GB1418621 A GB 1418621A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slides
- core
- corner
- side core
- slide
- 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
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible cores
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1418621 Injection moulds KRAUSS-MAFFEI AG 12 Feb 1974 [20 Feb 1973] 06322/74 Heading B5A An injection mould for making rectangular hollow bodies having encircling projections or flanges, e.g. long narrow fluorescent light shades, comprisees a mould jacket 1 and a multipart mould core comprising a central part 10 with sloping sides on which are guided side core slides 11-14 and four corner slides 15-18 which are guided in a frame plate 7 so as to be displaceable diagonally towards the interior of the core. Each side core slide has a T-section groove 25 engaing a T-section strip 24 on the central core part 10. A spring 27 urges the slide towards the position shown in Fig. 3. Movement of the corner slides 15-18 to the Fig. 3 position may be effected by wedge surfaces 33 (Fig. 4) engaging chamfered ends 34 of guide pins 29 secured to the corner slides. The wedges 32 are secured to a plate 5 and the pins 29 slide in the plate 7. In a modification the corner slides may be moved hydraulically. In another embodiment (Figs. 5, 6, not shown) for making even narrower articles the side core slides 11, 12 are offset from one another. In a further embodiment (Figs. 7, 8, not shown) the other two side core slides 13, 14 are dispensed with, two of the corner slides 15, 17 being L-shaped.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732308359 DE2308359C3 (en) | 1973-02-20 | Injection molding tool for manufacturing rectangular hollow bodies with circumferential undercuts |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1418621A true GB1418621A (en) | 1975-12-24 |
Family
ID=5872528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB632274A Expired GB1418621A (en) | 1973-02-20 | 1974-02-12 | Injection moulding tool |
Country Status (4)
Country | Link |
---|---|
FR (1) | FR2218182B1 (en) |
GB (1) | GB1418621A (en) |
IT (1) | IT1008859B (en) |
SE (1) | SE403986B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120158A (en) * | 1982-05-07 | 1983-11-30 | Tooling Products | Mounting and guiding cores |
GB2249749A (en) * | 1990-11-13 | 1992-05-20 | Takata Corp | Moulding a module cover for an air bag device which has undercut portions in mounting edge portions thereof |
US11426910B2 (en) | 2013-04-22 | 2022-08-30 | Colop Stempelerzeugung Skopek Gesellschaft M.B.H & Co. Kg. | Inkpad holder and device and method for producing the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9308418D0 (en) * | 1993-04-23 | 1993-06-09 | Int Radiator Services Ltd | Moulding |
-
1974
- 1974-02-04 FR FR7403580A patent/FR2218182B1/fr not_active Expired
- 1974-02-12 GB GB632274A patent/GB1418621A/en not_active Expired
- 1974-02-19 IT IT4844074A patent/IT1008859B/en active
- 1974-02-19 SE SE7402182A patent/SE403986B/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120158A (en) * | 1982-05-07 | 1983-11-30 | Tooling Products | Mounting and guiding cores |
GB2249749A (en) * | 1990-11-13 | 1992-05-20 | Takata Corp | Moulding a module cover for an air bag device which has undercut portions in mounting edge portions thereof |
US5183615A (en) * | 1990-11-13 | 1993-02-02 | Takata Corporation | Molding method of air bag cover |
GB2249749B (en) * | 1990-11-13 | 1994-09-21 | Takata Corp | Molding method of air bag cover |
US11426910B2 (en) | 2013-04-22 | 2022-08-30 | Colop Stempelerzeugung Skopek Gesellschaft M.B.H & Co. Kg. | Inkpad holder and device and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
DE2308359B2 (en) | 1977-02-03 |
FR2218182A1 (en) | 1974-09-13 |
SE403986B (en) | 1978-09-18 |
FR2218182B1 (en) | 1977-09-16 |
IT1008859B (en) | 1976-11-30 |
DE2308359A1 (en) | 1974-09-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |