US4028039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of injection moulded products
Assignee: Wavin BV
•
Filing: 1975-01-08
•
Granted: 1977-06-07
•
Expires: 1995-01-08
Abstract
Abstract Method for automatically removing a synthetic resin article from the die of an injection moulding machine, whereby this article during the time that the die halves are in the open position, is removed and conveyed into a particular direction by a grab, whereupon a lateral transfer and supporting member discharges the article.
Inventors
- 👤 Warner Jan de Putter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:12
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A device for automatically removing a plastic article from the mould of an injection moulding machine having a pair of die halves, comprising a grab supported near the mould part of the machine for removing. and discharging a synthetic plastic article; means for moving said grab; said grab having a range covering the entire space formed by the open die halves; a lateral transfer and support member; means for moving said lateral transfer and support member; said transfer and support member having a range outside the operative area of the injection moulding machine for receiving said articles from the grab and discharging said articles beyond the machine; an actuating means comprising at least one moving part on the grab which sets the lateral transfer and support member into motion; the lateral transfer and support member comprising a laterally movable flat plate upon which the moulded articles are transferred externally of the machine; the range of said plate of the lateral transfer and support member intersecting the range of said grab to effect the article discharge; and means for increasing the moving speed of the grab when the die halves are partially open whereby the time between entirely open die halves and entirely closed die halves is minimized.
Claim 2
Independent Claim
207 words
A device for automatically removing a plastic article from the mould of an injection moulding machine having a pair of die halves, comprising a grab supported near the mould part of the machine for removing. and discharging a synthetic plastic article; means for moving said grab; said grab having a range covering the entire space formed by the open die halves; a lateral transfer and support member; means for moving said lateral transfer and support member; said transfer and support member having a range outside the operative area of the injection moulding machine for receiving said articles from the grab and discharging said articles beyond the machine; an actuating means comprising at least one moving part on the grab which sets the lateral transfer and support member into motion; the lateral transfer and support member comprising a laterally movable flat plate upon which the moulded articles are transferred externally of the machine; the range of said plate of the lateral transfer and support member intersecting the range of said grab to effect the article discharge; and means for increasing the moving speed of the grab when the die halves are partially open whereby the time between entirely open die halves and entirely closed die halves is minimized.
Claim 3
Dependent Claim
19 words
A device as claimed in claim 1 wherein said grab comprises at least two grab arms forming a tong.
Claim 4
Dependent Claim
15 words
A device as claimed in claim 1 wherein said grab arms consist of synthetic material.
References Cited (Backward Citations)
US2707572A
Cited
US2631746A
Cited
DE1275276B
Cited
US3702749A
Cited
US3454991A
Cited
SU1377427A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |