Abstract: To execute a stable pressure control, in a control device for an injection molding machine, a filling/pressure-keeping determining unit determines whether the injection molding machine is performing a pressure keeping operation, an elastic constant identifier acquires, when the filling/pressure-keeping determining unit determines that the pressure keeping operation is in progress, a pressure detection value and a position detection value as operation information of a motor and identifies an elastic constant K based on the acquired pressure detection value and the position detection value, and a pressure-control control-parameter setting unit calculates a proportional gain Ka of a pressure controller such that a product of the proportional gain Ka of the pressure controller and the elastic constant K is smaller than a speed control bandwidth ?sc of a speed controller, and sets the calculated proportional gain Ka to the pressure controller.

Abstract: Systems and methods store information data in an information data frame, including retrieval keys, and store pertinent data specifying the information data in a pertinent data frame for each individual category specified by the retrieval keys. The systems and methods receive an updating file containing updating information data for updating information data subject to update. The systems and methods extract the information data subject to update from the information data frame and update the extracted information data with the updating information data contained in the received updating file. The systems and methods extract the pertinent data in a category specified by a retrieval key contained in the information data subject to update from the pertinent data frame and update the extracted pertinent data with the updating information data contained in the updating file.

Abstract: To execute a stable pressure control, in a control device for an injection molding machine, a filling/pressure-keeping determining unit determines whether the injection molding machine is performing a pressure keeping operation, an elastic constant identifier acquires, when the filling/pressure-keeping determining unit determines that the pressure keeping operation is in progress, a pressure detection value and a position detection value as operation information of a motor and identifies an elastic constant K based on the acquired pressure detection value and the position detection value, and a pressure-control control-parameter setting unit calculates a proportional gain Ka of a pressure controller such that a product of the proportional gain Ka of the pressure controller and the elastic constant K is smaller than a speed control bandwidth ?sc of a speed controller, and sets the calculated proportional gain Ka to the pressure controller.

Abstract: Systems and methods store data in records, each record comprising a plurality of fields. The systems and methods receive an update file that contains a stored field specifying structure that specifies a field that is to be updated in a particular record and that contains the updated data for the field that is to be updated. The systems and methods then write, for the particular record, the updated data that has been extracted from the update file into the field that has been specified by the stored field specifying structure of the update file.

Abstract: Systems and methods store information data in an information data frame, including retrieval keys, and store pertinent data specifying the information data in a pertinent data frame for each individual category specified by the retrieval keys. The systems and methods receive an updating file containing updating information data for updating information data subject to update. The systems and methods extract the information data subject to update from the information data frame and update the extracted information data with the updating information data contained in the received updating file. The systems and methods extract the pertinent data in a category specified by a retrieval key contained in the information data subject to update from the pertinent data frame and update the extracted pertinent data with the updating information data contained in the updating file.

Abstract: Systems and methods store data in records, each record comprising a plurality of fields. The systems and methods receive an update file that contains a stored field specifying structure that specifies a field that is to be updated in a particular record and that contains the updated data for the field that is to be updated. The systems and methods then write, for the particular record, the updated data that has been extracted from the update file into the field that has been specified by the stored field specifying structure of the update file.

Abstract: There are provided an injection molding machine 10 having a screw 7 that can be moved in a cylinder 5, a pressure commanding device for generating a pressure command value applied to the screw 7, a pressure sensor 12 for sensing a pressure applied to the screw 7, a pressure subtracter 22 for calculating a deviation value between the pressure command value of the pressure commanding device and a sensed value of the pressure sensor 12, a pressure amplifier 201 for amplifying the deviation value of the pressure subtracter 22 at a predetermined amplification factor and changing an amplification factor value based on a pressure value of the pressure sensor 12, and a servo motor 14 driven based on an output value of the pressure amplifier 201 to move the screw 7.