A single-acting, full return clamp (10) holds first and second objects, such as mold portions, in a compressive clamping relationship. A body (12), for attachment to the first object, has a housing (22) with first and second end plates (16, 18). A shaft (26) moves axially in the body and rotates about an axis of the body. A shaft end (32) outside of the housing bears against the second object in a first condition and disengages from the second object in a second condition, where the shaft end is lifts away from the body, and rotates relative to the axis. A spring (40) in the housing applies compressive force on the shaft in the first condition. A piston (74), in the housing near the first end plate when the device is in the first condition, moves axially against the spring force to move the shaft while in the second condition.

A single-acting, full return clamp (10) holds first and second objects, such as mold portions, in a compressive clamping relationship. A body (12), for attachment to the first object, has a housing (22) with first and second end plates (16, 18). A shaft (26) moves axially in the body and rotates about an axis of the body. A shaft end (32) outside of the housing bears against the second object in a first condition and disengages from the second object in a second condition, where the shaft end is lifts away from the body, and rotates relative to the axis. A spring (40) in the housing applies compressive force on the shaft in the first condition. A piston (74), in the housing near the first end plate when the device is in the first condition, moves axially against the spring force to move the shaft while in the second condition.

A hydraulic tire vulcanizing machine includes a frame, a cross beam mechanism, a plurality of groups of pulling rods and a mold locking mechanism, and hydraulic oil cylinders. Each pulling rod includes an upper pulling rod unit and a disconnectable lower pulling rod unit. The upper pulling rod unit is fixedly connected to the upper cross beam, and the lower pulling rod unit is equipped through the lower cross beam and the corresponding hydraulic oil cylinder with the mold locking mechanisms being connected to the lower pulling rod units. Each mold locking mechanism includes a driving device, a swing link, a plurality of connectors and at least one ball pin boss in mutual connection. Detection devices are provided for upper and lower pulling rod units connecting position with each of the detection devices include an impactor and a limit switch. The impactor is arranged on the upper pulling rod unit.

A hydraulic tire vulcanizing machine includes a frame, a cross beam mechanism, a plurality of groups of pulling rods and a mold locking mechanism, and hydraulic oil cylinders. Each pulling rod includes an upper pulling rod unit and a disconnectable lower pulling rod unit. The upper pulling rod unit is fixedly connected to the upper cross beam, and the lower pulling rod unit is equipped through the lower cross beam and the corresponding hydraulic oil cylinder with the mold locking mechanisms being connected to the lower pulling rod units. Each mold locking mechanism includes a driving device, a swing link, a plurality of connectors and at least one ball pin boss in mutual connection. Detection devices are provided for upper and lower pulling rod units connecting position with each of the detection devices include an impactor and a limit switch. The impactor is arranged on the upper pulling rod unit.

A mold-clamping device includes a fixed mold plate including a fixed mold; a movable mold plate including a movable mold; a hydraulic cylinder allowing the movable mold plate to approach or be separated from the fixed mold plate; a hydraulic pressure supply source supplying a hydraulic fluid to the hydraulic cylinder; and a control unit performing driving control on the hydraulic pressure supply source. The control unit includes a flow rate decrease control unit for deceleration for decreasing a flow rate of the hydraulic fluid according to a deceleration gradient set in advance when a movement of the movable mold plate is decelerated according to the deceleration gradient, and a flow rate increase control unit for controlling the flow rate of the hydraulic fluid to increase when the flow rate of the hydraulic fluid is decreased according to the deceleration gradient by the flow rate decrease control unit.

A mold clamping device includes a base, a stationary platen fixed to the base and supporting a stationary mold, a movable platen movable on the base and supporting a movable mold, and a mold clamping mechanism for clamping the movable mold against the stationary mold. Tie bars extend from the stationary platen completely through both the movable platen and the mold clamping mechanism. A shaft supporting plate is fixed to the base and has openings through which the tie bars slidably extend for supporting the tie bars. The shaft supporting plate terminates at its lower end portion in two spaced-apart shoes that are fixed to the base. The bottom surface of each shoe has a larger area than the cross-sectional area of the shaft supporting plate situated vertically above the shoe.

A mold clamping device includes a base, a stationary platen fixed to the base and supporting a stationary mold, a movable platen movable on the base and supporting a movable mold, and a mold clamping mechanism for clamping the movable mold against the stationary mold. Tie bars extend from the stationary platen completely through both the movable platen and the mold clamping mechanism. A shaft supporting plate is fixed to the base and has openings through which the tie bars slidably extend for supporting the tie bars. The shaft supporting plate terminates at its lower end portion in two spaced-apart shoes that are fixed to the base. The bottom surface of each shoe has a larger area than the cross-sectional area of the shaft supporting plate situated vertically above the shoe.

There is provided a forming apparatus for constraining a composite charge and forming the composite charge into a highly contoured composite structure. The forming apparatus includes a first die and a second die between which the composite charge is formed. The first die has pairs of first die portions spaced apart to define a die cavity into which the composite charge is formed into a contoured hat section having a cap. The forming apparatus includes a constraining assembly having a constraining device positioned in the die cavity. The constraining device is designed to constrain a cap portion, and to apply an upward resistive force against the cap portion, and against a downward compressive force applied by the second die, to provide wrinkle prevention in the cap as the contoured hat section is formed. The constraining assembly has a retaining element to retain the constraining device.

A 3D-configured production structure of rubber products based on an intelligent manufacturing unit and a production method thereof. The structure includes a stereoscopic production warehouse used to store a mobile intelligent manufacturing unit and an ex-warehouse delivery system used to deliver the mobile intelligent manufacturing unit. The mobile intelligent manufacturing unit includes a unit functional assembly, a molding vulcanization apparatus, a blank feeder, a material-delivering apparatus, a product-collecting apparatus and a reclaimer. The molding vulcanization apparatus includes a upper heat plate, a upper mold, a lower mold, a lower heat plate and a support post. The upper mold and the lower mold are arranged on the inner sides of the upper heat plate and the lower heat plate, respectively. The upper heat plate is fixed on one end of the support post, and the lower heat plate is arranged through the support post.

A 3D-configured production structure of rubber products based on an intelligent manufacturing unit and a production method thereof. The structure includes a stereoscopic production warehouse used to store a mobile intelligent manufacturing unit and an ex-warehouse delivery system used to deliver the mobile intelligent manufacturing unit. The mobile intelligent manufacturing unit includes a unit functional assembly, a molding vulcanization apparatus, a blank feeder, a material-delivering apparatus, a product-collecting apparatus and a reclaimer. The molding vulcanization apparatus includes a upper heat plate, a upper mold, a lower mold, a lower heat plate and a support post. The upper mold and the lower mold are arranged on the inner sides of the upper heat plate and the lower heat plate, respectively. The upper heat plate is fixed on one end of the support post, and the lower heat plate is arranged through the support post.