Die casting apparatus

In apparatus for die casting shaped articles which includes

• a molten metal supply means provided with an outlet for feeding metal from said supply means to a mold,
• a mounting frame disposed adjacent said outlet said molten metal supply means being movable toward and away from said mounting frame,
• a ring member carried rotatably in said mounting frame for rotation about a fixed axis,
• a plurality of die members mounted on said frame for sliding movement radially of said fixed axis between open and closed positions, said die members being provided with complementary configured surfaces which define said mold when said members are closed corresponding to the shape of the article to be cast and
• means associated with said die members for sliding said die members between their open and closed positions, such means including camming blocks carried on said ring member and having camming surface thereon, and cam followers connected with said die members, said cam followers engaging said camming surfaces to effect sliding movement of said die members responsive to relative rotation between said mounting frame and said ring member,
• said ring member being provided with a plurality of openings therethrough, said openings extending in encircling courses about said ring member, said camming blocks being secured to said ring member with fasteners received in said openings, the positioning of said camming blocks on said ring member relative to the others being selectively changeable by receiving said fasteners in selected ones of said openings thereby to control the timing sequence with which said die members open and close during each oscillation of said ring member,
• the mold surfaces of said die members communicating with said molten metal supply means when said die members are in closed position and said molten metal supply means is moved toward side mounting frame to bring the outlet therefrom into engagement with said mold.

Apparatus for die casting shaped articles comprising:

• a molten metal supply means provided with an outlet for feeding metal from said supply means to a mold,
• a mounting frame disposed adjacent said outlet, said molten metal supply means being movable toward and away from said mounting frame,
• a ring member carried rotatably in said mounting frame for rotation about a fixed axis,
• a plurality of die members and a plurality of core members mounted on said frame for sliding movement radially of said fixed axis between open and closed positions, said die members and said core members being provided with complementary configured surfaces which define said mold when said members are closed corresponding to the shape of the article to be cast,
• means associated with said die members for sliding said die members between their open and closed positions, such means including camming blocks carried on said ring member and having camming surfaces thereon, and cam followers connected with said die members, said cam followers engaging said camming surfaces to effect sliding movement of said die members responsive to relative rotation between said mounting frame and said ring member,
• means associated with said core members for sliding said core members between their open and closed positions, the sliding means associated with at least one of said core members including a camming block carried on said ring member and having a camming surface thereon, and a cam follower connected with said one core member, said cam follower engaging said camming surface to effect sliding movement of said one core member responsive to relative rotation between said mounting frame and said ring member, and
• a second ring member fixed in said mounting frame radially inwardly relatively of said first-mentioned ring member, said second ring member being in edge-to-edge adjacency with said first ring member whereby it serves as a bearing on which said first ring member rotates,
• the mold surfaces of said die members and core members communicating with said molten metal supply means when said die members and core members are in closed position and said molten metal supply means is moved toward said mounting frame to bring the outlet therefrom into engagement with said mold.

Apparatus for die casting shaped articles comprising:

• a molten metal supply means provided with an outlet for feeding metal from said supply means to a mold,
• a mounting frame disposed adjacent said outlet, said molten metal supply means being movable toward and away from said mounting frame,
• a ring member carried rotatably in said mounting frame for rotation about a fixed axis,
• a plurality of die members and a plurality of core members mounted on said frame for sliding movement radially of said fixed axis between open and closed positions, said die members and said core members being provided with complementary configured surfaces which define said mold when said members are closed corresponding to the shape of the article to be cast,
• means associated with said die members for sliding said die members between their open and closed positions, such means including camming blocks carried on said ring member and having camming surfaces thereon, and cam followers connected with said die members, said cam followers engaging said camming surfaces to effect sliding movement of said die members responsive to relative rotation between said mounting frame and said ring member,
• means associated with said core members for sliding said core members between their open and closed positions, the sliding means associated with at least one of said core members including a camming block carried on said ring member and having a camming surface thereon, and a cam follower connected with said one core member, said cam follower engaging said camming surface to effect sliding movement of said one core member responsive to relative rotation between said mounting frame and said ring member, and
• a push block fixed to each die member and to said one core member, the respective cam followers being rotatably adjustably fixed to the push blocks,
• the mold surfaces of said die members and core members communicating with said molten metal supply means when said die members and core members are in closed position and said molten metal supply means is moved toward said mounting frame to bring the outlet therefrom into engagement with said mold.

Apparatus for die casting a slide fastener slider and chain length of plural links connected with said slider, said apparatus comprising:

• a molten metal supply means provided with an outlet for feeding metal from said supply means to a mold,
• a mounting frame disposed adjacent said outlet, said molten metal supply means being movable toward and away from said mounting frame,
• a ring member carried rotatably in said mounting frame for rotation about a fixed axis,
• four die members and a pair of core members mounted on said frame for sliding movement radially of said fixed axis between open and closed positions, the die members being circularly spaced from one another about said axis and the core members intervening opposed pairs of said die members, said die members and said core members being provided with complementary configured surfaces which define said mold when said members are closed corresponding to the shape of the article to be cast, the die and core members being configured such that one-half of each link in the chain and a first part of the sliders are formed by one pair of die members and the other half of each link and a second part of the slider are formed by the other pair of die members, a third remainder part of said slider being formed by said core members,
• means associated with said die members for sliding said die members between their open and closed positions, such means including camming blocks carried on said ring member and having camming surfaces thereon, and cam followers connected with said die members, said cam followers engaging said camming surfaces to effect sliding movement of said die members responsive to relative rotation between said mounting frame and said ring member, and
• means associated with said core members for sliding said core members between their open and closed positions, the sliding means associated with at least one of said core members including a camming block carried on said ring member and having a camming surface thereon, and a cam follower connected with said one core member, said cam follower engaging said camming surface to effect sliding movement of said one core member responsive to relative rotation between said mounting frame and said ring member,
• said ring member being provided with a plurality of openings therethrough, said openings extending in encircling courses about said ring member, said camming blocks being secured to said ring member with fasteners received in said openings, the positioning of said camming blocks on said ring member relative to the others being selectively changeable by receiving said fasteners in selected ones of said openings thereby to control the timing sequence with which said die members and any core members slid by oscillation of said ring member open and close during each oscillation of said ring member,
• the mold surfaces of said die members and core members communicating with said molten metal supply means when said die members and core members are in closed position and said molten metal supply means is moved toward said mounting frame to bring the outlet therefrom into engagement with said mold.

Apparatus for die casting shaped articles comprising:

• a molten metal supply means provided with an outlet for feeding metal from said supply means to a mold,
• a mounting frame disposed adjacent said outlet, said molten metal supply means being movable toward and away from said mounting frame,
• a ring member slidably rotatably carried in a circular track in said mounting frame for rotation about a fixed axis,
• said circular track being provided with lubrication application means including a lubricant supply channel outletting at the face of said track and a wicking member at said channel outlet and in contact with the face of said ring member which slides on said track face,
• a plurality of die members and a plurality of core members mounted on said frame for sliding movement radially of said fixed axis between open and closed positions, said die members and said core members being provided with complementary configured surfaces which define said mold when said members are closed corresponding to the shape of the article to be cast,
• means associated with said die members for sliding said die members between their open and closed positions, such means including cooperating structure carried on said ring member and on each of said die members to effect sliding movement of said die member responsive to relative rotation between said mounting frame and said ring member, and
• means associated with said core members for sliding said core members between their open and closed positions, the mold surfaces of said die members and core members communicating with said molten metal supply means when said die members and core members are in closed position and said molten metal supply means is moved toward said mounting frame to bring the outlet therefrom into engagement with said mold.