US3589164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for extruding double-ended metal extrusions
Assignee: Allied Products Corp
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Filing: 1969-03-11
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Granted: 1971-06-29
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Expires: 1989-03-11
Abstract
Abstract One end of a solid metal part is engaged with the end of a fixed extrusion punch, the sides of the part are encompassed by the cavity of a movable die, the other end of the part is engaged with the end of a movable punch which is also movable with respect to the movable die, and the movable die and the movable punch are moved toward the fixed punch for extruding the part in the cavity in the die to shape the sides of the part and for forwardly extruding the part over the fixed punch and rearwardly extruding the part over the movable punch to shape recesses in the ends of the part. The movable die and the movable punch are carried by the ram of a press and the fixed punch is carried by the bed of the press below the feed level of the press along which the part is fed. As the part is extruded, it and the movable die are moved below the feed level of the press, and when the extrusion of the part is completed, the part is raised to the feed level of the press. Parts to be extruded are supplied to the feed level of the press and fed therealong by feeding means to the aforesaid extruding apparatus, and after the parts are extruded, they are fed along the feed level of the press by the feeding means to a station where the web between the recesses therein is pierced. Thereafter, the feeding means feeds the extruded and pierced parts along the feed level of the press to a point of discharge from the press.
Inventors
- 👤 Orville J Constant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:01
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/03; B21C23/21; B21C33/00; B21K; B21K21/00; B21K21/08
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
309 words
An apparatus for use in a press for extruding a double-ended metal extrusion wherein the press has a bed, a ram and a part feed level between the bed and the ram, comprising, a fixed extrusion punch carried by the bed of the press below the part feed level thereof, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means including a retractable pad at the feed level of the press and having an opening therethrough for feeding a solid metal part along the feed level of the press to a position where the part is in alignment with the die cavity, where one end of the part is above the fixed punch and the other end of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die engages the retractable pad and encompasses the sides of the part to lower the pad and the part below the feed level of the press, the part is extruded in the cavity of the die to shape the sides of the part, and said one end of the part is forwardly extruded over the fixed punch and said other end of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of said other end of the part over the movable punch.
Claim 2
Independent Claim
309 words
An apparatus for use in a press for extruding a double-ended metal extrusion wherein the press has a bed, a ram and a part feed level between the bed and the ram, comprising, a fixed extrusion punch carried by the bed of the press below the part feed level thereof, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means including a retractable pad at the feed level of the press and having an opening therethrough for feeding a solid metal part along the feed level of the press to a position where the part is in alignment with the die cavity, where one end of the part is above the fixed punch and the other end of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die engages the retractable pad and encompasses the sides of the part to lower the pad and the part below the feed level of the press, the part is extruded in the cavity of the die to shape the sides of the part, and said one end of the part is forwardly extruded over the fixed punch and said other end of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of said other end of the part over the movable punch.
Claim 3
Independent Claim
399 words
An apparatus for use in a press for extruding a double-ended metal extrusion from a solid metal part having at one end a head portion of relatively large transverse dimension and at the other end a tail portion of relatively small transverse dimension, and wherein the press has a bed, a ram and a part feed level between the bed and the ram, comprising, a fixed extrusion punch carried by the bed of the press below the part feed level thereof, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, said die cavity having a lower cavity portion of relatively large transverse dimensions and an upper cavity portion of relatively small transverse dimensions, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means including a retractable pad having an opening therethrough for feeding said solid metal part with the head portion thereof downwardly along the feed level of the press to a positiOn where the part is in alignment with the die cavity, where the lower head portion of the part is above the fixed punch and the upper tail portion of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die engages the retractable pad and encompasses the part with the head portion of the part in the lower cavity portion and the tail portion of the part in the upper cavity portion of the die cavity to lower the pad and the part below the feed level of the press, the part is extruded in the cavity portions of the die cavity to shape the sides of the head portion and the tail portion of the part, and said head portion of the part is forwardly extruded over the fixed punch and said tail portion of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of the tail portion of the part over the movable punch.
Claim 4
Independent Claim
399 words
An apparatus for use in a press for extruding a double-ended metal extrusion from a solid metal part having at one end a head portion of relatively large transverse dimension and at the other end a tail portion of relatively small transverse dimension, and wherein the press has a bed, a ram and a part feed level between the bed and the ram, comprising, a fixed extrusion punch carried by the bed of the press below the part feed level thereof, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, said die cavity having a lower cavity portion of relatively large transverse dimensions and an upper cavity portion of relatively small transverse dimensions, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means including a retractable pad having an opening therethrough for feeding said solid metal part with the head portion thereof downwardly along the feed level of the press to a positiOn where the part is in alignment with the die cavity, where the lower head portion of the part is above the fixed punch and the upper tail portion of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die engages the retractable pad and encompasses the part with the head portion of the part in the lower cavity portion and the tail portion of the part in the upper cavity portion of the die cavity to lower the pad and the part below the feed level of the press, the part is extruded in the cavity portions of the die cavity to shape the sides of the head portion and the tail portion of the part, and said head portion of the part is forwardly extruded over the fixed punch and said tail portion of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of the tail portion of the part over the movable punch.
Claim 5
Dependent Claim
71 words
The apparatus as defined in claim 1 including a retractable stripper sleeve about the movable punch, and means carried by the ram for advancing the stripper sleeve to strip the extruded part from the movable punch and the cavity in the movable die as the movable punch and movable die are raised by the upward movement of the ram to deposit the extruded part at the feed level of the press.
Claim 6
Dependent Claim
71 words
The apparatus as defined in claim 2 including a retractable stripper sleeve about the movable punch, and means carried by the ram for advancing the stripper sleeve to strip the extruded part from the movable punch and the cavity in the movable die as the movable punch and movable die are raised by the upward movement of the ram to deposit the extruded part at the feed level of the press.
Claim 7
Dependent Claim
92 words
The apparatus as defined in claim 1 including an ejector sleeve about the stationary punch, which is adapted to extend through the opening in the retractable pad, and means operated in timed relation to the movement of the ram of the press to retract said sleeve to allow the part to be extruded to extend through the opening in the retractable pad into engagement with the fixed punch, and to advance said sleeve to eject the extruded part from the opening in the retractable pad to the feed level of the press.
Claim 8
Dependent Claim
92 words
The apparatus as defined in claim 2 including an ejector sleeve about the stationary punch which is adapted to extend through the opening in the retractable pad, and means operated in timed relation to the movement of the ram of the press to retract said sleeve to allow the part to be extruded to extend through the opening in the retractable pad into engagement with the fixed punch, and to advance said sleeve to eject the extruded part from the opening in the retractable pad to the feed level of the press.
Claim 9
Dependent Claim
92 words
The apparatus as defined in claim 3 including an ejector sleeve about the stationary punch which is adapted to extend through the opening in the retractable pad, and means operated in timed relation to the movement of the ram of the press to retract said sleeve to allow the part to be extruded to extend through the opening in the retractable pad into engagement with the fixed punch, and to advance said sleeve to eject the extruded part from the opening in the retractable pad to the feed level of the press.
Claim 10
Dependent Claim
92 words
The apparatus as defined in claim 4 including an ejector sleeve about the stationary punch which is adapted to extend through the opening in the retractable pad, and means operated in timed relation to the movement of the ram of the press to retract said sleeve to allow the part to be extruded to extend through the opening in the retractable pad into engagement with the fixed punch, and to advance said sleeve to eject the extruded part from the opening in the retractable pad to the feed level of the press.
Claim 11
Dependent Claim
34 words
The apparatus as defined in claim 1 wherein said lost motion pressure means includes a cylinder carried by the ram of the press anD a pressure-operated piston in the cylinder carrying the movable die.
Claim 12
Dependent Claim
34 words
The apparatus as defined in claim 2 wherein said lost motion pressure means includes a cylinder carried by the ram of the press and a pressure-operated piston in the cylinder carrying the movable die.
Claim 13
Dependent Claim
108 words
The apparatus as defined in claim 1 including a fixed button carried by the bed of the press below the part feed level thereof, a movable piercing punch fixedly carried by the ram of the press in longitudinal alignment with the fixed button, said feeding means feeding the extruded part along the feed level of the press to a position where the extruded part is in alignment with said fixed button and said movable piercing punch, the apparatus being such that as the ram is lowered the movable piercing punch cooperating with the fixed button pierces the web between the recesses in the ends of the extruded part.
Claim 14
Dependent Claim
108 words
The apparatus as defined in claim 2 including a fixed button carried by the bed of the press below the part feed level thereof, a movable piercing punch fixedly carried by the ram of the press in longitudinal alignment with the fixed button, said feeding means feeding the extruded part along the feed level of the press to a position where the extruded part is in alignment with said fixed button and said movable piercing punch, the apparatus being such that as the ram is lowered the movable piercing punch cooperating with the fixed button pierces the web between the recesses in the ends of the extruded part.
Claim 15
Dependent Claim
124 words
The apparatus as defined in claim 1 wherein said feeding means for feeding said metal part includes a chute for the part terminating below the feed level of the press, a cylinder-operated block carried by the bed of the press for elevating the part from the chute to the feed level of the press, and a movable punch head movably carried by the ram of the press in longitudinal alignment with cylinder-operated block for resiliently pinching the part as it is elevated by the block to the feed level of the press, said feeding means feeding the metal part along the feed level of the press to said position where the part is in alignment with said die cavity, fixed punch and movable punch.
Claim 16
Dependent Claim
124 words
The apparatus as defined in claim 2 wherein said feeding means for feeding said metal part includes a chute for the part terminating below the feed level of the press, a cylinder-operated block carried by the bed of the press for elevating the part from the chute to the feed level of the press, and a movable punch head movably carried by the ram of the press in longitudinal alignment with cylinder-operated block for resiliently pinching the part as it is elevated by the block to the feed level of the press, said feeding means feeding the metal part along the feed level of the press to said position where the part is in alignment with said die cavity, fixed punch and movable punch.
Claim 17
Dependent Claim
61 words
The apparatus as defined in claim 11 including a discharge mechanism having a discharge opening at the feed level of the press, said feeding means feeding the extruded and pierced part along the feed level of the press to a position where said part is in alignment with said discharge opening for discharging the extruded and pierced part from the apparatus.
Claim 18
Dependent Claim
61 words
The apparatus as defined in claim 12 including a discharge mechanism having a discharge opening at the feed level of the press, said feeding means feeding the extruded and pierced part along the feed level of the press to a position where said part is in alignment with said discharge opening for discharging the extruded and pierced part from the apparatus.
Claim 19
Independent Claim
255 words
An apparatus for use in a press for extruding a double-ended metal extrusion wherein the press has a bed and a ram, comprising, a fixed extrusion punch carried by the bed of the press, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and Having a die cavity in longitudinal alignment with said fixed and movable punches, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means for feeding a solid metal part to a position where the part is in alignment with the die cavity, where one end of the part is above the fixed punch and the other end of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die encompasses the sides of the part and lowers the part, the part is extruded in the cavity of the die to shape the sides of the part, and said one end of the part is forwardly extruded over the fixed punch and said other end of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of said other end of the part over the movable punch.
Claim 20
Independent Claim
255 words
An apparatus for use in a press for extruding a double-ended metal extrusion wherein the press has a bed and a ram, comprising, a fixed extrusion punch carried by the bed of the press, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and Having a die cavity in longitudinal alignment with said fixed and movable punches, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means for feeding a solid metal part to a position where the part is in alignment with the die cavity, where one end of the part is above the fixed punch and the other end of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die encompasses the sides of the part and lowers the part, the part is extruded in the cavity of the die to shape the sides of the part, and said one end of the part is forwardly extruded over the fixed punch and said other end of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of said other end of the part over the movable punch.
Claim 21
Independent Claim
353 words
An apparatus for use in a press for extruding a double-ended metal extrusion from a solid metal part having at one end a head portion of relatively large transverse dimension and at the other end a tail portion of relatively small transverse dimension, and wherein the press has a bed and a ram, comprising, a fixed extrusion punch carried by the bed of the press, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, said die cavity having a lower cavity portion of relatively large transverse dimensions and an upper cavity portion of relatively small transverse dimensions, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means for feeding said solid metal part with the head portion thereof downwardly to a position where the part is in alignment with the die cavity, where the lower head portion of the part is above the fixed punch and the upper tail portion of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die encompasses the part with the head portion of the part in the lower cavity portion and the tail portion of the part in the upper cavity portion of the die cavity and lowers the part, the part is extruded in the cavity portions of the die cavity to shape the sides of the head portion and the tail portion of the part, and said head portion of the part is forwardly extruded over the fixed punch and said tail portion of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of the tail portion of the part over the movable punch.
Claim 22
Independent Claim
353 words
An apparatus for use in a press for extruding a double-ended metal extrusion from a solid metal part having at one end a head portion of relatively large transverse dimension and at the other end a tail portion of relatively small transverse dimension, and wherein the press has a bed and a ram, comprising, a fixed extrusion punch carried by the bed of the press, a movable extrusion punch fixedly carried by the ram of the press in longitudinal alignment with the fixed punch, a movable die carried by the ram of the press and movable with respect to said ram and having a die cavity in longitudinal alignment with said fixed and movable punches, said die cavity having a lower cavity portion of relatively large transverse dimensions and an upper cavity portion of relatively small transverse dimensions, lost motion pressure means for normally maintaining the die in a downward position with respect to the movable punch, means for feeding said solid metal part with the head portion thereof downwardly to a position where the part is in alignment with the die cavity, where the lower head portion of the part is above the fixed punch and the upper tail portion of the part is below the movable punch, the apparatus being such that as the ram is lowered, the die encompasses the part with the head portion of the part in the lower cavity portion and the tail portion of the part in the upper cavity portion of the die cavity and lowers the part, the part is extruded in the cavity portions of the die cavity to shape the sides of the head portion and the tail portion of the part, and said head portion of the part is forwardly extruded over the fixed punch and said tail portion of the part is rearwardly extruded over the movable punch to shape recesses in the ends of the part, said lost motion pressure means permitting downward movement of the movable punch with respect to the die to provide the rearward extrusion of the tail portion of the part over the movable punch.
Claim 23
Dependent Claim
95 words
The apparatus as defined in claim 18 including a fixed button carried by the bed of the press, a movable piercing punch fixedly carried by the ram of the press in longitudinal alignment with the fixed button, and means for feeding the extruded part to a position where the extruded part is in alignment with said fixed button and said movable piercing punch, the apparatus being such that as the ram is lowered the movable piercing punch cooperating with the fixed button pierces the web between the recesses in the ends of the extruded part.
Claim 24
Dependent Claim
95 words
The apparatus as defined in claim 19 including a fixed button carried by the bed of the press, a movable piercing punch fixedly carried by the ram of the press in longitudinal alignment with the fixed button, and means for feeding the extruded part to a position where the extruded part is in alignment with said fixed button and said movable piercing punch, the apparatus being such that as the ram is lowered the movable piercing punch cooperating with the fixed button pierces the web between the recesses in the ends of the extruded part.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |