US3734666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Part removal apparatus
Assignee: Individual
•
Filing: 1971-04-21
•
Granted: 1973-05-22
•
Expires: 1991-04-21
Abstract
Abstract Part removal apparatus for removing and discharging in an oriented position parts formed on machines having reciprocating platens, such as plastic molding machines, for example. Relative movement between the platens of the machine is employed to mechanically drive a part holding element between the separating platens to position a part receiving holder in adjacent position to a freshly formed part which is retained on one of the machine platens. The part is transferred to the holder by the application of vacuum to the holder which then sucks the part into the holder and retains the part on the holder temporarily. The holder is mechanically driven by closing movement of the platens to retract clear of the platens and to thus carry the part into operative alignment with a discharge chute. As the holder arrives in operative alignment with the discharge chute, a pressure source is connected to the holder and to the chute, the application of pressure to the holder blowing the part clear of the holder into the discharge chute, while the application of pressure to the discharge chute blows the freshly received part from the discharge chute into a stationary chute located to be in alignment with the discharge chute at this particular moment.
Inventors
- 👤 P Guest
- 👤 R Kontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:20
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0003; B29C37/0007; B29C45/00; B29C45/17; B29C45/40; B29C45/42; B29C45/4208
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
285 words
Part removal apparatus for removing and discharging formed parts from a machine having a frame, pair of platens mounted on said frame for movement relative to each other, and means for moving said platens relative to each other between an open and a closed part forming position, the formed part being retained upon one of said platens upon opening of the platens; said apparatus comprising a carriage mounted upon said one of said platens, a part discharge chute fixedly mounted on said carriage, a part holder mounted on said carriage for movement between a part discharge position adjacent said chute and a part pick up position adjacent that portion of said one of said platens upon which the part is retained on opening of said platens, means coupled between said carriage and the other of said platens for driving said part holder to said pick up position upon opening of said platens and for driving said part holder to said discharge position upon closing of said platens, a part receiving chute located to be operatively aligned with said part discharge chute when said platens are closed, a pressure source, a vacuum source, first control means operable when said part holder is adjacent said pick up position for operatively connecting said vacuum source to said holder to cause said holder to grip and retain a part upon said holder, second control means operable upon the arrival of said holder at said discharge position for operatively connecting said pressure source to said holder to blow a part from said holder into said discharge chute, and pneumatic means for transferring a part from said discharge chute to said receiving chute while the platens are in their closed position.
Claim 2
Dependent Claim
285 words
Part removal apparatus for removing and discharging formed parts from a machine having a frame, pair of platens mounted on said frame for movement relative to each other, and means for moving said platens relative to each other between an open and a closed part forming position, the formed part being retained upon one of said platens upon opening of the platens; said apparatus comprising a carriage mounted upon said one of said platens, a part discharge chute fixedly mounted on said carriage, a part holder mounted on said carriage for movement between a part discharge position adjacent said chute and a part pick up position adjacent that portion of said one of said platens upon which the part is retained on opening of said platens, means coupled between said carriage and the other of said platens for driving said part holder to said pick up position upon opening of said platens and for driving said part holder to said discharge position upon closing of said platens, a part receiving chute located to be operatively aligned with said part discharge chute when said platens are closed, a pressure source, a vacuum source, first control means operable when said part holder is adjacent said pick up position for operatively connecting said vacuum source to said holder to cause said holder to grip and retain a part upon said holder, second control means operable upon the arrival of said holder at said discharge position for operatively connecting said pressure source to said holder to blow a part from said holder into said discharge chute, and pneumatic means for transferring a part from said discharge chute to said receiving chute while the platens are in their closed position.
Claim 3
Dependent Claim
45 words
Apparatus as defined in claim 1 wherein said receiving chute is mounted at a stationary location, said one of said platens and said carriage being movable to a position where said discharge chute is aligned with said receiving chute only when said platens are closed.
Claim 4
Dependent Claim
37 words
Apparatus as defined in claim 1 wherein the other of said platens is fixed to said frame, and means for selectively locking said carriage to said frame or to said one of said platens for movement therewith.
Claim 5
Dependent Claim
239 words
Part removal apparatus for removing and discharging formed parts from a machine having a frame, a first platen fixed to said frame, a second platen mounted on said frame for movement toward and away from said first platen between an open position and a closed part forming position, the formed part being retained on said second platen upon movement of said second platen to said open position; said apparatus comprising a part receiving chute mounted upon said frame, a part discharge chute mounted on said second platen for movement therewith to be located in an inoperative position out of alignment with said receiving chute when said platens are open and in an operative part transfer position in alignment with said receiving chute when said platens are closed, a part holder mounted on said second platen for movement between a part receiving position adjacent a formed part retained on said second platen and a part discharge position in alignment with said discharge chute, drive means coupled between said frame and said part holder to locate said part holder in said receiving position when said platens are open and in said discharge position when said platens are closed, first means operable when said platens are open to transfer the retained part from second platen to said holder, and second means operable when said platens are closed to transfer the part from said holder to said receiving chute via said discharge chute.
Claim 6
Dependent Claim
239 words
Part removal apparatus for removing and discharging formed parts from a machine having a frame, a first platen fixed to said frame, a second platen mounted on said frame for movement toward and away from said first platen between an open position and a closed part forming position, the formed part being retained on said second platen upon movement of said second platen to said open position; said apparatus comprising a part receiving chute mounted upon said frame, a part discharge chute mounted on said second platen for movement therewith to be located in an inoperative position out of alignment with said receiving chute when said platens are open and in an operative part transfer position in alignment with said receiving chute when said platens are closed, a part holder mounted on said second platen for movement between a part receiving position adjacent a formed part retained on said second platen and a part discharge position in alignment with said discharge chute, drive means coupled between said frame and said part holder to locate said part holder in said receiving position when said platens are open and in said discharge position when said platens are closed, first means operable when said platens are open to transfer the retained part from second platen to said holder, and second means operable when said platens are closed to transfer the part from said holder to said receiving chute via said discharge chute.
Claim 7
Dependent Claim
61 words
Part removal apparatus as defined in claim 4 wherein said first means comprises means for applying a vacuum to said holder, and said second means comprises means for supplying air under pressure to said holder to blow said part into said discharge chute and for supplying air under pressure to said dischArge chute to blow said part into said receiving chute.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |