摘要:
A reciprocating apparatus comprises a reciprocating member, a drive mechanism, an input device, a work-switch position calculating unit configured to calculate a work-switch position for the drive mechanism, a direction-switch position calculating unit configured to calculate a direction-switch position, a remaining-distance calculating unit configured to calculate a remaining distance that is a difference between the direction-switch position calculated by the direction-switch position calculating unit and a direction-switch position input at the input device, a target direction-switch position calculating unit configured to add the remaining distance, to the direction-switch position calculated by the direction-switch position calculating unit, thereby to calculate a target direction-switch position, and a corrected position calculating unit configured to calculates a corrected work-switch position for the drive mechanism so that the drive mechanism may cause the reciprocating member to start moving in the opposite direction at the target direction-switch position calculated by the target direction-switch position calculating unit.
摘要:
A reciprocating apparatus comprises a reciprocating member, a drive mechanism, an input device, a work-switch position calculating unit configured to calculate a work-switch position for the drive mechanism, a direction-switch position calculating unit configured to calculate a direction-switch position, a remaining-distance calculating unit configured to calculate a remaining distance that is a difference between the direction-switch position calculated by the direction-switch position calculating unit and a direction-switch position input at the input device, a target direction-switch position calculating unit configured to add the remaining distance, to the direction-switch position calculated by the direction-switch position calculating unit, thereby to calculate a target direction-switch position, and a corrected position calculating unit configured to calculates a corrected work-switch position for the drive mechanism so that the drive mechanism may cause the reciprocating member to start moving in the opposite direction at the target direction-switch position calculated by the target direction-switch position calculating unit.
摘要:
A control system for injection molding machines comprises a memory means (16) for storing set values. Further, a signal input for the transmission of actual values to the control system is provided. A first control means (18) is used for the transmission of a control field with consideration to previous values. A second control means (20) is provided for the transmission of a correction value, in particular with consideration to a deviation of the actual value from the set value. A correlation means (22) serves to correlate the control field values with the correction value for outputting a control variable.
摘要:
An electro-mechanical drive apparatus uses a single variable speed motor, two one-way clutches, a hydraulic pump stack and a hydraulic accumulator to provide both hydraulic power for linear motion axes and rotation of a driven element of an electromechanical drive system in an injection molding machine. When engaged, the first one-way clutch couples the drive motor to the pump stack, while the second one-way clutch couples the motor to the driven element. During rotation of the drive motor in a forward direction, (a) the first one-way clutch engages, rotating the shaft of the hydraulic pump stack to power the machine's hydraulic systems and charge an accumulator; and (b) the second one-way clutch slips. When the drive motor is rotated in a reverse direction, (a) the second one-way clutch engages, rotating the driven element, and (b) the first one-way clutch slips.
摘要:
An electro-mechanical drive apparatus uses a single variable speed motor, two one-way clutches, and a hydraulic accumulator to provide both hydraulic power for the linear motion axes and rotation of the plasticizing screw in an injection molding machine. When engaged, the first one-way clutch couples the drive motor to the pump stack, while the second one-way clutch couples the motor to the feed screw. During rotation of the drive motor in a forward direction; (a) the first one-way clutch engages, rotating the shaft of the hydraulic pump stack to power the machines hydraulic systems and charge the accumulator; and (b) the second one-way clutch slips. When the drive motor is rotated in a reverse direction, (a) the second one-way clutch engages, rotating the feed screw, and (b) the first one-way clutch slips. Preferably, the drive apparatus is associated with a double shaft motor mounted adjacent separate drive couplings for the feed screw and hydraulic pump stack.