Tool set for powder compacting press

{
  "publication_number": "US3822974A",
  "country": "US",
  "kind": "A",
  "title": "Tool set for powder compacting press",
  "abstract": "A tool set for use in conjunction with a die plate having at least one die cavity in it and at least one lower punch mounted for movement into the die cavity to compact a powder material and produce a finished article. The tool set includes both punch and core rod, with the punch movable into the die cavity during the press operation. The core rod is fixed with reference to the die cavity and extends into the cavity to provide an aperture in the finished article. The core rod and its special resilient type mounting facilitate sliding movement of the punch relative to the core rod.",
  "claims": [
    "1. A tool set for use in conjunction with a press, said tool set comprising a die plate having at least one die cavity, a pair of spaced guide posts fixed to said die plate and normal to one surface thereof, a punch support slidably mounted on said posts and cyclically movable toward and away from said die cavity by a ram of said press, at least one punch mounted on said punch support, said punch having its longitudinal axis aligned with the longitudinal axis of said die cavity and a like peripheral sizing to said die cavity, said punch further having a longitudinal bore therethrough, a core rod having an enlarged mounting head portion and a reduced end portion slidably projecting through said punch bore and having a length sufficient to extend through the entire length of said die cavity, a core rod support means fixed to said guide posts, said core rod support means consisting of a pair of spaced apart substantially parallel support plates and one of said plates having an aperture for passage therethrough of the reduced end portion of said core rod with the enlarged mounting head portion of said core rod disposed between said mounting plates, a pad of resilient material disposed between the end of the mounting head portion of said core rod and the other of said mounting plates for permitting a limited deflection of said core rod during sliding movement of said core rod through said punch bore during assembly and operation of the tool set and clamping means for drawing said mounting plates toward each other for holding therebetween the enlarged mounting head portion of said core rod.",
    "2. The tool set of claim 1 wherein said pad of resilient material is a separate resilient pad of substantially the same diameter as said enlarged head portion of said core rod.",
    "3. The tool set of claim 1 wherein said pad of resilient material is a coating of resilient material applied to the surface of said other of said mounting plates.",
    "4. The tool set of claim 1 wherein said punch support comprises a pair of spaced apart substantially parallel support plates, one of said plates having an aperture for passage therethrough of the reduced end portion of said core rod and the other of said plates having an aperture for passage therethrough of said punch, said punch having an enlarged mounting head portion disposed between said mounting plates, a pad of resilient mateRial disposed between the end of said punch enlarged head portion and the first of said plates, and clamping means for drawing said plates toward each other for holding therebetween the enlarged mounting head portion of said punch.",
    "5. The tool set of claim 4 wherein a plurality of die cavities are included in said die plate and a like plurality of punches and core rods are included in said tool set, said die cavities, punches and core rods being disposed in a predetermined array."
  ],
  "cpc": [
    "B30B 11/04"
  ],
  "ipc": [
    "B30B 11/04"
  ],
  "assignees": [
    "Wolverine Pentronix Inc"
  ],
  "inventors": [
    "Santis R De",
    "Troyer G De"
  ],
  "filing_date": "1972-08-23",
  "publication_date": "1974-07-09",
  "grant_date": "1974-07-09",
  "priority_date": "1972-08-23",
  "application_number": "US-28296572-A",
  "family_id": "23083896",
  "cited_by_count": 9
}