http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1253200-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21K21-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B21C23-03 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21K21-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B21C23-03 |
| filingDate | 1970-04-16^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-11-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1253200-A |
| abstract | 1,253.200. Extruding; piercing billets. VERSON ALLSTEEL PRESS CO. 16 April, 1970, No. 18126/70. Headings B3H and B3P. An apparatus for producing double ended metal extrusions -14, Fig. 6, comprises a fixed punch 71, Fig. 10, a movable die 98 and a movable punch 87 which are closed on a workpiece 11 to backward extrude it over the punch 87 and forward extrude it over the fixed punch 71 while it is confined by the die. The blank is sheared from steel bar stock, annealed, lubricated with oil and deformed into a part 11. The part is cleaned by steam or caustic soda, annealed, coated with zinc phosphate and immersed in soap. The parts are fed from a hopper down a shoot 52, Fig. 1, and lifted to be held between pneumatic plungers 65, (57), Fig. 8 (not shown). Reciprocating gripper fingers (40), Fig. 2 (not shown), move each part to the extrusion station 31. The part is supplied to the upper end of a sleeve 76, Fig. 10, on a plate 77 which is lowered so that the part 11 is received in an opening 75 and rests on the fixed punch 71. The part is enclosed by the die 98 when the ram 42 is lowered and forwardly extrudes over the fixed punch. The backward extrusion starts when hydraulic pressure in the space 92 behind the die is overcome. When the ram moves up the part is stripped from the punch 87 by a sleve 108 and from the fixed punch 71 by the sleeve 76. The extruded part is then transferred by the gripper fingers to a piercing station 32, Fig. 1. The piercing station has a bed block 114, Fig. 12, with a hollow button 117 to support the extruded part 14. The part is held in position by a stripper body 132 and pierced by a punch 130. The pierced out part is discharged down a shoot. The pierced parts are then transferred to a discharge station 33, Fig. 1, with an apertured block 140 through which the parts are dropped. The part may be a barrel for a car starter motor. |
| priorityDate | 1970-04-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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