Abstract: A method of manufacturing a foamed foodstuff by inserting powdered and granular ingredients for a foodstuff into an extruder which is provided with two screws which mesh with each other and rotated at high speed in the same direction, mixing and heating the ingredients in a preheating zone, adding a predetermined quantity of a liquid to the mixed ingredients in a liquid-addition zone, kneading the moistened ingredients in a kneading zone, transforming the starch in the ingredients into alpha starch in an alpha formation zone, and then extruding the ingredients from the extruder.
Abstract: A method and an apparatus for controlling a radial depth of cut of a rotary cutting tool in a machine tool, in particular in a machining center is disclosed wherein an eccentric mechanism for controlling the radial depth of cut of the tip of the cutting tool is not contained in a main shaft as in a conventional machine tool. Instead, it is provided outside the main shaft, and the radial depth of cut of the tip of the cutter is controlled by a tool holder to be automatically changeably fit to the forward end of the main shaft such that a tool holding shaft mounted to the tool holder by means of an eccentric mechanism so as to have the eccentricity relative thereto be adjustable is adapted to be controlled through a depth of cut central shaft passed through the bore of a draw-bar, concentrically disposed within the bore of the main shaft, by means of a servo-motor through a differential gear mechanism and the eccentric mechanism.
Abstract: A flexible loader apparatus as used for supplying a workpiece to or removing a machined workpiece from a machine tool is provided which has a base (6) secured to a headstock (5) of the machine tool, slides (7,8) shiftable in a direction parallel to the axial line (9) of the main spindle of the headstock (5) guided by the guide member (10) of the base (6), a first servo-motor (16) to move the slides (7, 8), an arm (18) supported at its one end on the slides (7, 8) at their one ends so as to be rotatable about a second axial line (17) parallel to the axial line (9) of the main spindle, a second servo-motor (26) to rotate the arm (18), a wrist member (21) supported by the arm (18) at its free end so as to be rotatable about a third axial line (20) parallel to the axial line (9), a hand member (23) supported by the wrist member (21) so as to be rotatable about an axial line (22) orthogonal to the third axial line (20), fingers (25) mounted to the hand member (23) and adapted to be opened and closed by a fluid cyl
Abstract: A tool holder (10) for mounting a tool T to a carrier (11), base member (12) and a tool holding member (13) secured together to form the tool holder unit. Confronting surfaces (19,20) of the tool holder members are disposed in facial engagement about the periphery of a recess (21) receiving a resilient pad (22). The compressed pad provides an antivibration, antichattering effect in the use of the tool holder.
Abstract: In an automatic measuring apparatus and method for a numerically controlled machine tool, the dimension of a stylus secured to a cross slide and a desired dimension between two opposite points on a workpiece to be measured are inputted into an automatic measuring device in advance, the cross slide is moved under numerical control to bring the stylus into contact with the two points and to remove the stylus therefrom, and measurement of the amount of movement of the cross slide is started when the stylus leaves from one of the two points and the measurement is ended when the stylus leaves from the other point. The measurement value thus obtained, the dimension of the stylus and the desired dimension are subjected to addition and subtraction, thereby to automatically measure the actual dimension between the two points, and the difference between this actual dimension and the desired dimension.
Abstract: The temperature of the molten mixture within a multi-screw extruder is maintained in the range of from the melting point of the macromolecular material up to 20.degree. C above said melting point, by an extruder having at least 2 screws, said extruder being constructed such that the ratio (H/D) of the diameter (D) of the screws to the interlocking depth (H) of the screws is equal to or less than 0.1 and the flow of the mixture of inorganic additive and macromolecular material within the screws can be so controlled that the difference in residence time of more than 90% of said mixture is no more than .+-.10% relative to the prescribed residence time, whereby the dispersion of said inorganic additive is extremely improved.
Abstract: Moldings of cross-linked thermoplastic polymers are obtained by the method comprising: melting a cross-linkable thermoplastic polymer admixed with a cross-linking agent by applying a temperature and a pressure insufficient to cause a cross-linking reaction; passing the thus-melted molding material through a first orifice thereby to raise its temperature by a shearing action to an extent that will start a cross-linking reaction; passing the thus-treated melted molding material through a second orifice thereby further to raise its temperature to an extent that will effect a rapid cross-linking reaction of the molding material; and then introducing the thus-treated molding material into a pre-forming die to advance the cross-linking reaction of the molding material and then cooling the molding material by means of a liquid under an elevated pressure.
Abstract: A method of molding a synthetic resin which comprises: kneading a mixture obtained by dispersing a cross-linking agent in said synthetic resin, while melting said resin by applying such temperature and pressure as will not give rise to cross-linking reaction, introducing the thus kneaded mixture into plural reaction chambers to effect cross-linking therein by applying an appropriate temperature and high pressure, and extruding the thus cross-linked material continuously from said reaction chambers through a head die for molding purpose; and a molding apparatus relevant to said method.