{
  "$type": "site.standard.document",
  "description": "A mold clamping mechanism of an injection molding machine employs a toggle type mold clamping mechanism for preventing degradation of parallelism between stationary and movable platens, which is caused due to clearance between a pin (P1) and a bushing (B). This is achieved by a simple construction…",
  "path": "/patents/1074953",
  "publishedAt": "2005-08-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29C45/661",
    "FANUC LTD [JP]"
  ],
  "textContent": "A mold clamping mechanism of an injection molding machine employs a toggle type mold clamping mechanism for preventing degradation of parallelism between stationary and movable platens, which is caused due to clearance between a pin (P1) and a bushing (B). This is achieved by a simple construction. A mold clamping force acting on the pin (P1) is transmitted through bushing (B) in which the pin (P1) is located, to a toggle link (L1) thereby moving the movable platen to perform mold clamping. A pre-pressure exerted in the same direction as the direction of a mold clamping force generated at the time of mold clamping is applied by a spring (10) or the like to move the pin (P1) toward the link (L1). Even when a mold opening force is exerted at the time of mold opening, the pre-pressure (c) provided by the spring (10) or the like keeps the position of the clearance ( delta ) between the pin (P1) and the bushing (B) unchanged. Since the link (L1) pulled by the spring (10) or the like is moved to follow the pin (P1), so that the pin (P1) is not moved alone by an amount of clearance ( delta ), parallelism between the stationary and movable platens is not degraded.",
  "title": "Mold clamping mechanism of injection molding machine"
}