Rubber sole thermoforming machine

A rubber sole thermo-molding machine, comprising:

• a machine seat comprising a hydraulic actuator;
• a lower mold seat disposed on the hydraulic actuator, a lower mold disposed on the lower mold seat, the lower mold seat connected with a first horizontal movement mechanism, the first horizontal movement mechanism controlling the lower mold seat to horizontally move between a lower mold closing position located on a relatively backward side and a lower mold forward-moving position located on a relatively forward side;
• an upper mold seat disposed on the machine seat and arranged above the lower mold seat, a upper mold disposed on the upper mold seat, the upper mold seat connected with a turning mechanism disposed on the machine seat;
• the turning mechanism driving the upper mold seat to move between a normal position and a tilt position;
• when the upper mold seat is at the normal position, the lower mold seat, according to an operation of the hydraulic actuator, ascends or descends the lower mold to achieve a mold closing status or a mold opening status with the upper mold;
• a middle plate disposed between the lower mold seat and the upper mold seat and connected with a second horizontal movement mechanism, the middle plate horizontally moving between a middle plate backward-moving position, a middle plate closing position, and a middle plate forward-moving position;
• when the middle plate is at the middle plate closing position, with the upper mold seat being at the normal position and the lower mold seat being at the lower mold closing position, the middle plate is arranged in direct alignment between the upper mold seat and the lower mold seat;
• a middle frame comprising a position pin;
• a push mechanism disposed on the upper mold seat and having a fasten unit, the fasten unit comprising a plurality of beads, the fasten unit controlling the beads to be engaged with the position pin, such that the middle frame moves toward or away from the upper mold seat according to an operation of the push mechanism;
• the fasten unit also controls the beads to leave the position pin, so that the fasten unit is separated from the middle frame according to the operation of the push mechanism;
• and when the beads leave the position pin, with the first horizontal movement mechanism driving the lower mold seat to move to the lower mold forward-moving position, the middle frame is stacked on the middle plate, so as to move to the middle plate forward-moving position along with the lower mold seat;
• the position pin comprising a recess portion;
• the fasten unit comprising a seat body and a sleeve member;
• the seat body comprising a pin bore and the plurality of beads, and the beads being able to transversely move with respect to the pin bore;
• the sleeve member comprising a peripheral wall connected with a peripheral side of the seat body;
• the seat body being engaged with the corresponding position pin with the pin bore and drives the sleeve member to abut against the beads in the recess portion with the peripheral wall to be engaged with the position pin;
• the fasten unit driving the peripheral wall of the sleeve member to retreat from abutting against the beads in the recess portion to leave the position pin;
• wherein the push mechanism comprises a plurality of tube members;
• the tube members are able to longitudinally movably pass through the upper mold seat;
• each tube member comprises the fasten unit, and the fasten unit further comprises a control member and a movement rod;
• the control member is disposed on a top end of the tube member, and the movement rod movably passes through the corresponding tube member and is connected with the control member;
• the seat body is disposed on a bottom end of the corresponding tube member, and the sleeve member is connected with a bottom end of the corresponding movement rod;
• the movement rod is controlled to move in the corresponding tube member;
• the seat body longitudinally moves with the corresponding tube member to be engaged with the corresponding position pin through the pin bore, and axially moves with the movement rod to drive the sleeve member to abut against the beads in the recess portion with the peripheral wall, or axially moves with the movement rod to retreat the peripheral wall of the sleeve member from abutting against the beads in the recess portion.