摘要:
Methods of monitoring and controlling a molding process using a sensed change in strain provided by a strain gauge are provided. A target strain profile is created for a molding process of a molding apparatus. An upper and lower deviation limit from the target strain profile for the molding process is provided. If a sensed change in strain exceeds a deviation limit, an alarm is activated.
摘要:
A molding system capable of detecting an abnormality for each cavity when a plurality of molded articles is molded at a time by a mold having a plurality of cavities mounted on an injection molding machine is a molding system for detecting an abnormality of a cavity by inspecting a molded article molded by a mold having a plurality of cavities mounted on an injection molding machine. The molding system includes a molded article information acquiring unit for acquiring molded article information indicating a state of the molded article for each cavity over a plurality of molding cycles, and a cavity abnormality detecting unit for detecting an abnormal cavity by mutually comparing tendencies of the molded article information between cavities.
摘要:
The invention relates to a method for producing a fibre-reinforced thermoplastic component assembly and to a fibre-reinforced thermoplastic component assembly, comprising: a fibre-reinforced thermoplastic component, which has a first side and a second side, opposite from the first side, at least one additional element of a thermoplastic material, which is arranged on the first side of the fibre-reinforced thermoplastic component, and at least one testing element of a thermoplastic material, which is visibly arranged on the first or second side of the fibre-reinforced thermoplastic component and is designed for testing the connection of the additional element to the fibre-reinforced thermoplastic component.
摘要:
A failure alarm system adapted for monitoring an instrument includes a BUS transmitting data and control logics inside the failure alarm system, a recording device connected to the BUS for recording operating sounds of the instrument, a voice processing unit connected to the BUS for converting the operating sounds into voice eigenvector, a storage unit connected to the BUS for storing the voice eigenvector at the normal working state of the instrument as historical data and also storing the voice eigenvector at the abnormal working state of the instrument therein, a comparing unit connected to the BUS for comparing new voice eigenvector with the pervious voice eigenvector saved as the historical data to judge whether the instrument is at abnormal working state, and a warning unit connected to the BUS for warning the monitoring personnel when abnormal state is detected.
摘要:
A reference physical quantity and a current physical quantity are successively compared with each other in association with an elapsed time during which a moving part operates or an operating position of the moving part, and a deviation of the physical quantity is determined. An average of absolute values of the determined deviations of the physical quantities is calculated, and a threshold corresponding to the elapsed time during which the moving part operates or the operating position of the moving part is calculated such that the threshold increases as the calculated absolute value increases. Abnormality is detected if the calculated threshold is exceeded by the determined deviation of the physical quantity.
摘要:
A mold assembly includes a product cavity for producing an insert-molded product and a projection-forming cavity for, if an insert of the product is irregularly deformed or disposed in wrong orientation, forming a projection on the insert-molded product. The projection, if present on the product, blocks most of the light emitted from a light-emitting element. A photodetector detects the intensity of the received light and when the detected light intensity is less than a predetermined value due to the presence of the projection, the product is judged to be rejected. Visual inspection or optical sensors judge the product to be rejected if the product has a through-hole closed and to be acceptable if the through-hole of the product is open. This judgment does not require an X-ray inspection device or radiologists.
摘要:
An injection molding machine and a method for mold-adjusting are provided. The injection molding machine comprises a mold-adjusting mechanism mounted to one side of the fixed platen and being coaxial with the tie bars. Each of the mold-adjusting mechanisms is constructed the same comprising a support frame (11), a motor (12), a mold-adjusting driving wheel (13), a mold-adjusting driven wheel (14), a hydraulic cylinder for positioning (15), a sensor and a control system.
摘要:
Torques and resin pressures applied to a screw are detected during the forward movement of the screw and coefficients of correlation between the detected torques and resin pressures are calculated. When the check ring is open, the flight of the screw receives resin pressure, and the screw torque increases proportionally to the resin pressure due to resin backflow, so the coefficients of correlation between the screw torques and the resin pressures are higher than a reference value. When the check ring closes, the flight of the screw no longer receive resin pressure, so the screw torque decreases and the coefficients of correlation become lower than the reference value. The check ring is determined to be closed when the coefficients of correlation become lower than the reference value.
摘要:
Screw rotation speeds and screw rotating torques are measured at predetermined time intervals during metering and substituted into a previously-assumed function to determine a maximum screw rotating torque at each screw rotation speed. An allowable upper limit of screw rotating torque is set for each screw rotation speed on the basis of the determined maximum screw rotating torque. If a screw rotating torque exceeding the allowable upper limit is detected during metering after the allowable upper limit is set, the screw rotation is stopped or changed.
摘要:
An object is to make it possible to calculate and set a threshold used for determining whether a molded product is good or defective, for each molding shot, to thereby enable an operator of a molding machine to easily set the threshold, and to determine whether a molded product is good or defective, while using a proper threshold, to thereby maintain a proper percent defective and enable accurate determination for molded products. To achieve the above object, there are provided a numerical value detection section which detects a numerical value representing a molding condition of a molding machine; a relation-deriving section which derives a relation between threshold and percent defective on the basis of the detected numerical value; a threshold-setting section which sets, in accordance with the derived relation, a threshold corresponding to a previously set target value of the percent defective; and a determination section which determines whether a molded product is good or defective through comparison between the detected numerical value and the set threshold.