A molding machine includes; a fixed platen capable of having a fixed mold attached thereto; a moving platen capable of having a moving mold attached thereto; a mold clamping mechanism clamping the moving mold and the fixed mold with each other by moving the moving mold; a driving unit operating the mold clamping mechanism; and a control unit controlling the driving unit, wherein the control unit compensates an operation loss of the driving unit occurring from an operation start of the driving unit to an operation start of the moving mold to set the moving mold at a desired position.

A molding machine includes; a fixed platen capable of having a fixed mold attached thereto; a moving platen capable of having a moving mold attached thereto; a mold clamping mechanism clamping the moving mold and the fixed mold with each other by moving the moving mold; a driving unit operating the mold clamping mechanism; and a control unit controlling the driving unit, wherein the control unit compensates an operation loss of the driving unit occurring from an operation start of the driving unit to an operation start of the moving mold to set the moving mold at a desired position.

An apparatus for controlling the rate of flow of fluid mold material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold having a fluid delivery channel, an actuator interconnected to a valve pin having a tip end drivable between a first position, a second position upstream and a third position upstream of the second position, the actuator and the valve pin being translationally driven by a valve system adjustable between a start position, a plurality of intermediate drive rate positions and a high drive rate position, a pressure sensor and a controller, the pressure sensor sensing a metered pressure of a drive fluid, the controller instructing the valve system to drive valve pin continuously upstream and including instructions that instruct the valve system to move according to a predetermined profile of metered pressures from the start position to selected intermediate drive rate positions and subsequently to the high drive rate position.

An apparatus for controlling the rate of flow of fluid mold material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold having a fluid delivery channel, an actuator interconnected to a valve pin having a tip end drivable between a first position, a second position upstream and a third position upstream of the second position, the actuator and the valve pin being translationally driven by a valve system adjustable between a start position, a plurality of intermediate drive rate positions and a high drive rate position, a pressure sensor and a controller, the pressure sensor sensing a metered pressure of a drive fluid, the controller instructing the valve system to drive valve pin continuously upstream and including instructions that instruct the valve system to move according to a predetermined profile of metered pressures from the start position to selected intermediate drive rate positions and subsequently to the high drive rate position.

An open-face molding apparatus for use in open-face injection molding operations to more accurately control the thickness of coatings applied to workpiece surfaces of slightly varying contour profiles. A conformable tool face is carried by a rigid tool backing and a perimeter seal releasably seals the conformable tool face around its perimeter to the workpiece surface. The conformable tool face and perimeter seal define a mold cavity together with the workpiece surface. An array of actuators are connected between the rigid tool backing and the conformable tool face to provide a desired tool face contour and desired spacings between the conformable tool face and a workpiece surface by deflecting the conformable tool face relative to the rigid tool backing.

Injection molding apparatuses and methods wherein a valve pin is controllably driven upstream and downstream along an axis between a first closed position where the tip end of the valve pin obstructs the gate to prevent the injection fluid from flowing into the cavity, a full open position and one or more intermediate positions, wherein the valve pin is drivable to be disposed or held in a selected intermediate position for a selected period of time during the course of an injection cycle where the tip end of the valve pin restricts flow of injection fluid through the gate to the mold cavity.

A rotary-shaft type turntable positioning device of an injection molding machine includes a first encoder and a second encoder installed at a servomotor of a positioning device and a speed reducer respectively, so that after the injection molding machine finishes an injection molding, the servomotor is used to drive the driving shaft and link the output shaft to drive the driving wheel to rotate a rotary shaft, while rotating and positioning a turntable. During rotation, signals of the first encoder and the second encoder are sensed to adjust the position, so as to control the turntable to be rotated to a precise position.

A rotary-shaft type turntable positioning device of an injection molding machine includes a first encoder and a second encoder installed at a servomotor of a positioning device and a speed reducer respectively, so that after the injection molding machine finishes an injection molding, the servomotor is used to drive the driving shaft and link the output shaft to drive the driving wheel to rotate a rotary shaft, while rotating and positioning a turntable. During rotation, signals of the first encoder and the second encoder are sensed to adjust the position, so as to control the turntable to be rotated to a precise position.

Apparatus for checking a state of a machine part of a shaping machine, comprising an evaluation unit, at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, and at least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part, wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal.

Apparatus for checking a state of a machine part of a shaping machine, comprising an evaluation unit, at least one power loss sensor for ascertaining a power loss measurement signal which is representative of a power loss in and/or at the machine part, and at least one movement sensor for ascertaining a movement measurement signal which is representative of a movement of the machine part, wherein the evaluation unit is adapted to compute a damage indicator for the machine part from the power loss measurement signal and from the movement measurement signal.