Abstract: Control apparatus for an injection molding machine having a sensor provided for the injection molding machine for producing a signal representing the quality of the molded product or a molding condition of the injection molding machine, a set value memory device in which a permissible range of the signal is set, a judging member for judging as to whether the signal lies in the permissible range, a production lot data memory device containing control data for the injection molding machine with respect to a lot now being produced, and a destination table showing a destination of the data corresponding to a result of judgment of the judging member, a controller for controlling the injection molding machine in accordance with the control data stored in the production lot memory device, and another memory device for storing a plurality of sets of the production lot data regarding various lots or production conditions, and a storing device for determining a destination of the production lot data based on the result

Abstract: An apparatus for displaying monitoring data of a continuously varying operation condition of a drive mechanism driven by an actuator, in which data of one operation cycle of the drive mechanism is detected preliminarily as reference data and displayed on a coordinate axis on a monitor to show deviation between the reference data and the detected data of each operation cycle. Allowable uppermost and lowermost limit data of the reference data are also calculated and displayed on the same coordinate axis of the displaying surface of the monitor.

Abstract: In an apparatus for indicating and controlling temperature at a plurality of positions, under the control of a function selecting device, set data stored in a data memory are transferred to a current memory and indicated in a plurality of indicators. A control device calculates control values based on the set values and sensed values, and delivers outputs for controlling the temperatures. When the function selecting device selects remote operation, the apparatus may be operated by a host computer and the like.

Abstract: In a vent type injection molding machine of the type comprising a heating cylinder, injection nozzle means having a vent port and connected to the front end of the heating cylinder and a reciprocatable screw for metering a predetermined quantity of resin to be injected, the injection nozzle means comprises a first injection nozzle connected to the heating cylinder, a second injection nozzle coaxial with the first injection nozzle, a spring for urging the second injection nozzle against a stationary metal mold and a housing surrounding the first and second injection nozzles. The vent port is provided through the housing at a point communicating with a space in the housing between the first and second injection nozzles.

Abstract: An apparatus for supervising an injection stroke of an injection machine of the type wherein injection parameters are detected at a number of points in a filling stroke, and detected parameters are sequentially sampled at a plurality of points over the entire filling stroke, the filling stroke is divided into a plurality of regions, and the injection parameters measured in respective divided regions are judged as to whether the parameters can produce satisfactory products or not. Such parameters are used as reference values and sequentially sampled parameters are subtracted by the reference values. The differences are accumulated for respective regions and when accumulated differences exceed predetermined permissible values an alarm signal is issued.

Abstract: An optical measurement device in which changes in the output wavelength of the light source do not affect the measurement accuracy. Values representing the output wavelength of the light source are stored in a signal processing device and used to correct the measurement result for errors otherwise induced by the changes in the wavelength of the light source output.

Abstract: A technique is disclosed for displaying monitoring data of a continuously varying operation condition of a drive mechanism driven by an actuator, in which data of one operation cycle of the drive mechanism is detected preliminarily as reference data and data for another operation cycle succeeding to the one operation cycle is detected. The last-detected data is then superposed on the reference data and displayed on a coordinate axis on a monitor to show deviation between the reference data and the detected data of each operation cycle. Allowable uppermost and lowermost limit data of the reference data are also calculated and displayed on the same coordinate axis of the displaying surface of the monitor.

Abstract: A method of monitoring data concerning injection pressure in an injection molding machine is disclosed in which a multipoint sampling technique is used to acquire and store injection pressure reference data in the form of a time varying data curve for a first injection molding cycle. The reference data is used to form upper allowance data which is stored in the form of a time varying data curve having a constant offset from the reference data curve. The upper allowance data is then compared with injection pressure data acquired using a multipoint sampling technique during a second injection molding cycle and an alarm is issued if the data acquired in the second injection molding cycle exceeds the upper allowance data.

Abstract: An injection apparatus of an injection molding machine includes a heating cylinder and a screw disposed in the heating cylinder, and the screw is axially moved and rotated in the heating cylinder for plasticizing the molten material by mechanisms or devices assembled in the injection apparatus, which is driven by electric drive means through driving power transmission means. The electric drive means comprises two servomotors and the power transmission means comprises two power transmission mechanisms operatively connected to the servomotors respectively so that one of the two servomotors drives a mechanism for axially moving the screw through one of the two power transmission mechanisms and the other of the two servomotors drives a mechanism for rotating the screw through the other of the two power transmission mechanisms, parallelly or concurrently.

Abstract: A moving magnetic pickup cartridge including: a vibratory system having; a stylus arm in a cantilever fashion, a stylus being provided at a free end of the stylus arm, and a permanent magnet being provided at a fixed end of the stylus arm, the magnet being magnetized in a direction of an axis of the stylus arm; a magnetoelectric converting system including; a stationary core having first, second and third yoke members magnetically coupled at their one pole ends to each other, the first and second yoke members having their other pole ends face respective lateral peripheral sides of the permanent magnet while the third yoke member has its other pole end facing an upper periphery of the magnet; and a coil system which includes at least two sets of coils, each set of which is wound around the first, second and third yoke members, one set of coils producing a sum of a horizontal signal and a vertical signal corresponding respectively to a horizontal component and a vertical component of the magnet vibration, the o

Abstract: An apparatus for monitoring data concerning injection pressure in an injection molding machine is disclosed in which a multipoint sampling technique is used to acquire and store injection pressure reference data in the form of a time varying data curve for a first injection molding cycle. The reference data is used to form upper allowance data which is stored in the form of a time varying data curve having a constant offset from the reference data curve. The upper allowance data is then compared with injection pressure data acquired using a multipoint sampling technique during a second injection molding cycle and an alarm is issued if the data acquired in the second injection molding cycle exceeds the upper allowance data.

Abstract: A valve nozzle device provided between a heating cylinder of an injection molding machine and at least one metal mold, includes at least one nozzle combined with at least one needle valve for injecting plastic resin melted in the heating cylinder into the metal mold. The device is further provided with a first passage connected with the heating cylinder, third passages each provided around the needle valve to be merged into the nozzle, and second passages interconnecting the first and the third passages. The second passage has a central axis extending in a plane other than a plane including a central axis of the needle valve, and is connected with the third passage in a positional relation such that the plastic resin in the second passage flows into the third passage from one side thereof followed by a helical path around the needle valve.

Abstract: In apparatus for controlling a plasticizing process of a resin of an in-line screw-type injection molding machine, a position of the screw is continuously detected in accordance with the movement thereof and a control function is determined on the basis of one of various factors, such as resin heating energy, shearing energy, injection pressure and filling speed, which determine a temperature distribution of a resin to be injected. The operating condition, particularly the number of revolutions and the back pressure of the screw, is controlled on the basis of the control function and the screw position so as to uniformalize the temperature distribution of the resin.

Abstract: In a method of and apparatus for controlling a plasticizing process of a resin of an in-line screw-type injection molding machine, a position of the screw is continuously detected in accordance with the movement thereof and a control function is determined by a back pressure of the screw which is compensated for by taking into consideration such as resin heating energy and shearing energy, which determine a temperature distribution of a resin to be injected. The operating condition, particularly the number of revolutions and the back pressure of the screw, is controlled on the basis of the screw position so as to make uniform the temperature distribution of the resin.

Abstract: Freeze-drying of an aqueous solution of human native gamma globulin having an anticomplementary activity of 20 (C'H50) or less in the presence of 0.06 to 0.26 part by weight of a neutral inorganic salt for 1 part by weight of the gamma globulin gives an immunoactive lyophilized native gamma globulin preparation which has undergone neither increase in anticomplementary activity nor deterioration in antibody activity during the freeze-drying and is safe for use in intravenous administration.

Abstract: Zinc plating process comprising adding water-soluble, amphoteric polysulfone compounds having the formula (A) as set forth below and, optionally, aromatic aldehydes to a zinc plating bath of an alkali zincate type and subjecting the resulting bath to electrodeposition conditions. The Amphoteric polysulfone compounds have the formula ##STR1## wherein: R.sub.1 and R.sub.2 each independently represents a straight or branched chain alkyl group having from 1 to 4 carbon atoms or a 2-hydroxyethyl group; a is in the range of 0.03 to 0.5; b is in the range of 0.3 to 0.77; c is in the range of 0.2 to 0.4, provided that c is not greater than b .times. 0.8; and n is in the range of 5 to 100.

Abstract: An article is zinc plated by electrodeposition in an alkaline zinc plating bath of ZnO and NaOH to which has been added, together with a small quantity of an aromatic aldehyde, a polyamine sulfone represented by the formula ##STR1## WHERE: EACH OF R.sub.1 and R.sub.2 is hydrogen, an allyl group, a straight-chain or branched-chain alkyl group having 1 to 16 carbon atoms, an aralkyl group, or a hydroxyalkyl group of the general formula HO--CH.sub.2).sub.m, where m is an integer of 1 to 6;X.sup.- is a halogen ion, HSO.sub.4.sup.-, HSO.sub.3.sup.-, HCOO.sup.-, or CH.sub.3 COO.sup.-; andn is an integer such that the number average molecular weight becomes 2,000 to 350,000.a and b are natural numbers having a relation such that a:b = 100; (10 to 100).