US3574892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder compacting press
Assignee: Wolverine Pentronix Inc
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Filing: 1969-01-27
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Granted: 1971-04-13
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Expires: 1989-01-27
Abstract
Abstract A punch and die assembly and work station positioner for a powder-compacting press including a die plate and a tool capsule containing a punch or punches for reciprocation therein which is formed as a unit with the die plate and a multiple work station positioner assembly angularly movably positioned over the die plate, the die plate being provided with a plurality of substantially linearly arranged die cavities adapted to be filled with powdered material in a first position of the work station positioner and for receipt of similarly arranged punches to compress the powder between the punches and an anvil in a second position of the work station positioner, and to eject the compressed articles from the die cavities in a third position of the work station positioner for discharge through similar linearly arranged discharge apertures in the first position of the work station positioner.
Inventors
- 👤 Joseph E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:15
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
362 words
In an apparatus for making articles from powdered material, the improvement comprising: a die plate provided with a plurality of die cavities disposed in a predetermined array; a plurality of discharge apertures provided in said die plate and disposed in said predetermined array in an angularly offset position from said die cavities such that each of said discharge apertures corresponds to a similarly positioned die cavity in said array; multiple punch means disposed below said die plate, each extending within one of said die cavities for reciprocatory movement therein; an oscillating work station positioner disposed above said die plate for angular movement across said die plate around a vertical axis positioned remote from said die plate, said work station positioner being provided with multiple work stations adapted to be selectively positioned over said die cavities upon angular movement of said oscillating work station positioner; said work stations comprising: a fill station having a dispenser head adapted to be supplied with powdered material; a press station having an anvil; and an eject station having a pickup head, said press station being disposed between said fill station and said eject station so that in a first position of said oscillating work station positioner said fill station is disposed over all said die cavities to fill said cavities with powdered material; in a second position of said work station positioner said press station is positioned over all said die cavities to compress said powdered material into a compacted article by meAns of said reciprocable punches advancing against said anvil; and in a third position of said work station positioner said eject station is positioned over all said die cavities for ejection of said compacted articles from all said die cavities into said pickup head; the arrangement of said plurality of work stations in relation to said die cavities and discharge apertures being such that during operation of said apparatus when said work station positioner is in said first position to fill said die cavities with powdered material said compacted articles from a preceding work cycle are simultaneously released from said pickup head through each of said discharge apertures corresponding to each of said die cavities.
Claim 2
Dependent Claim
362 words
In an apparatus for making articles from powdered material, the improvement comprising: a die plate provided with a plurality of die cavities disposed in a predetermined array; a plurality of discharge apertures provided in said die plate and disposed in said predetermined array in an angularly offset position from said die cavities such that each of said discharge apertures corresponds to a similarly positioned die cavity in said array; multiple punch means disposed below said die plate, each extending within one of said die cavities for reciprocatory movement therein; an oscillating work station positioner disposed above said die plate for angular movement across said die plate around a vertical axis positioned remote from said die plate, said work station positioner being provided with multiple work stations adapted to be selectively positioned over said die cavities upon angular movement of said oscillating work station positioner; said work stations comprising: a fill station having a dispenser head adapted to be supplied with powdered material; a press station having an anvil; and an eject station having a pickup head, said press station being disposed between said fill station and said eject station so that in a first position of said oscillating work station positioner said fill station is disposed over all said die cavities to fill said cavities with powdered material; in a second position of said work station positioner said press station is positioned over all said die cavities to compress said powdered material into a compacted article by meAns of said reciprocable punches advancing against said anvil; and in a third position of said work station positioner said eject station is positioned over all said die cavities for ejection of said compacted articles from all said die cavities into said pickup head; the arrangement of said plurality of work stations in relation to said die cavities and discharge apertures being such that during operation of said apparatus when said work station positioner is in said first position to fill said die cavities with powdered material said compacted articles from a preceding work cycle are simultaneously released from said pickup head through each of said discharge apertures corresponding to each of said die cavities.
Claim 3
Dependent Claim
101 words
In the apparatus as defined in claim 1, in which said die cavities are arranged along a straight line, and in which said punch means comprises a punch holder having a punch-actuating rod, power means operably connected to said punch-actuating rod for reciprocation thereof, said punch holder being adapted to support a plurality of punches for reciprocation therewith, said plurality of punches for reciprocation therewith, said plurality of punches being arranged linearly in spaced relationship corresponding to said linearly arranged die cavities for extension of each of said plurality of punches into a corresponding cavity of said plurality of die cavities.
Claim 4
Dependent Claim
62 words
In the apparatus as defined in claim 2, said plurality of discharge apertures corresponding in number to said plurality of die cavities, the center of each of said discharge apertures being disposed on an arc of a circle extended from the center of its corresponding die cavity, the center of said circle being at the axis of said oscillating work station positioner.
Claim 5
Dependent Claim
43 words
In the apparatus as defined in claim 3, the center of said linearly aligned die cavities being on a common radius and the center of said discharge apertures being on a second common radius of a plurality of said arcs of a circle.
Claim 6
Dependent Claim
141 words
A punch and die assembly for a powder compacting press comprising: a die plate; a housing attached to one side of said die plate; a punch holder having an actuating rod reciprocably disposed within said housing, said punch holder comprising a head provided with at least one linear T-slot extending from an outer edge of said head across to another outer edge thereof; a plurality of punches disposed within said T-slot for retainment therein and for reciprocation with said punch holder; said die plate being provided with a first set of apertures corresponding in number to said plurality of punches, each of said punches extending into a corresponding one of said first set of apertures for reciprocation therein; and a second set of apertures within said die plate angularly offset from said first set of apertures in a radially aligned relationship.
Claim 7
Dependent Claim
141 words
A punch and die assembly for a powder compacting press comprising: a die plate; a housing attached to one side of said die plate; a punch holder having an actuating rod reciprocably disposed within said housing, said punch holder comprising a head provided with at least one linear T-slot extending from an outer edge of said head across to another outer edge thereof; a plurality of punches disposed within said T-slot for retainment therein and for reciprocation with said punch holder; said die plate being provided with a first set of apertures corresponding in number to said plurality of punches, each of said punches extending into a corresponding one of said first set of apertures for reciprocation therein; and a second set of apertures within said die plate angularly offset from said first set of apertures in a radially aligned relationship.
Claim 8
Dependent Claim
35 words
In the punch and die assembly as defined in claim 6, said T-slot, said plurality of punches and first set of apertures being disposed in linear alignment normal to the axis of said punch holder.
Claim 9
Dependent Claim
28 words
In the punch and die assembly as defined in claim 5, said first set of apertures comprising die cavities and said second set of apertures defining discharge apertures.
Claim 10
Dependent Claim
46 words
In the punch and die assembly as defined in claim 5, the provision of a plurality of core rods each of which extends slidably though each of said plurality of punches and through said head of said punch holder for stationary adjustable attachment to said housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |