Abstract: A drive motor has a shaft supported by a casing to be rotatable and movable in the axial direction over a predetermined stroke. A portion of the shaft is utilized in order to form a rotary motor section for rotating the shaft, and another portion of the shaft is utilized in order to form an electromagnetic plunger section for moving the shaft in the axial direction. The rotary motor section and the electromagnetic plunger section are integrally built in the casing. The drive motor is used in a drive apparatus for a pre-plasticization-type injection molding machine. The front end of the shaft is connected to the rear end of a screw disposed within a barrel of a plasticizing unit of molding machine. Through axial movement of the shaft, a resin passage of the barrel is opened and closed by a valve portion provided at the front end of the screw.

Abstract: An injection molding machine is equipped with an injection apparatus support mechanism comprising paired main tie-bars disposed to extend between a mold attachment plate and a back plate disposed to face each other; front and rear support plates connected to each other via paired auxiliary tie-bars and slidably supported by the main tie-bars; and an intermediate support block slidably supported by the main and auxiliary tie-bars. Since the mold attachment plate and the back plate are supported by the paired main tie-bars disposed symmetrically with respect to the screw, a sufficient level of mechanical strength (fixation strength) is secured for the mold attachment plate and the back plate. In addition, since the front support plate and the rear support plate are connected to each other by the paired auxiliary tie-bars disposed symmetrically with respect to the screw at positions different from those of the main tie-bars, the mechanical strength of these plates is secured.

Abstract: A plasticizing apparatus used for a pre-plasticization-type injection molding machine is equipped with a screw drive section which comprises a rotational drive section supported in an axially moveable manner and adapted to rotate the screw; and an advancement/retraction drive section including a servomotor and a ball-screw mechanism for converting rotational motion of the servomotor to linear motion in order to axially move the rotational drive section. By virtue of the above-described structure, the screw disposed within the barrel is rotated by the rotational drive section of the screw drive section, so that the molding material within the barrel is plasticized (melted) and is then supplied to the injection apparatus. Further, the rotational drive section (screw) is advanced and retracted by the advancement/retraction section of the screw drive section, so that the resin passage of the barrel is opened and closed in accordance with the position of the screw.

Abstract: A motor drive apparatus is provided in an injection molding machine in order to supply electrical energy to a motor. The motor drive apparatus includes an electricity accumulation unit for accumulating electrical energy; and an electricity accumulation circuit for accumulating in the electricity accumulation unit electrical energy regenerated from the motor during a deceleration period of the motor and for supplying the electrical energy accumulated in the electricity accumulation unit to the motor during an acceleration period of the motor.

Abstract: Disk removing device uses its disk pickup arm to remove or take out, from an injection mold unit, a disk having been molded by the mold unit. The disk removing device includes a rotary motor for rotating the disk pickup arm, and an arm support shaft which has the disk pickup arm at its distal end portion and which is rotated, together with the arm, by the rotary motor. The arm support shaft is coupled at its other end to a linear shaft of a linear motor so that the rotary and linear motors are coupled with each other in series via the arm support shaft. The disk removing device also includes a bearing member rotatable by the rotary motor, and the arm support shaft is supported by the bearing member for rotation and axial sliding movement relative to the bearing member. Such arrangements can effectively reduce the necessary number of component parts and overall size of the disk removing device, and thus the disk removing device can be installed snugly in a small space.

Abstract: In a motor-driven-type injection molding machine, large-sized motors (a motor for screw rotation, a motor for screw reciprocation, and a motor for mold clamping) are accommodated in an interior space of a machine base to be located substantially at the center of the machine base with respect to the transverse direction thereof; and each of rotation-transmitted portions provided in an injection apparatus and a mold clamping apparatus is drivingly connected to the corresponding motor via a rotation transmission mechanism comprising a rotation transmission belt. Since the large, heavy motors are accommodated within the interior space of the machine base to be located substantially at the center of the machine base with respect to the transverse direction thereof, the height of the overall center of gravity of the molding machine is lowered, weight balance is improved, and the degree of quietness is improved.

Abstract: A molding machine includes a drive unit which, in turn, includes comprises a rotary motor and a thrust generator. The rotary motor includes a shaft which is rotatable and axially movable. The shaft is connected to a movable body so as to rotate the movable body by the rotary motor and to reciprocate the movable body by the thrust generator. Thus, the drive unit is substantially composed of a single rotary motor which functions for rotating and reciprocating the movable body, such as a screw.

Abstract: A molding machine includes a drive unit for linearly moving a movable body, such as a movable platen of a clamping apparatus. The drive unit includes a linear motor. The linear motor includes a linear movement body having moving-side magnetic-pole portions and supported in an axially movable manner, and a stationary body having stationary-side magnetic-pole portions adapted to linearly move the linear movement body. The linear movement body is connected to the movable body (movable platen). The linear movement body has moving-side inclined surfaces on which part of the moving-side magnetic-pole portions are disposed. The stationary body has stationary-side inclined surfaces which face the moving-side inclined surfaces and on which part of the stationary-side magnetic-pole portions are disposed.

Abstract: An optical visualizing apparatus for use in a head mounted display unit contains a liquid crystal shutter designed to allow a viewer to see both an image display and scenery outside of the image display at the same time. The apparatus contains a screen placed in front of the viewer's eyes, an optical visualizing unit to display an image on the screen, a mounting unit for supporting the optical visualizing unit in front of the viewer's face, and a control unit that can either suspend transmission of the image and allow clear sighting through the screen without the image or, if desired, simultaneous display of the image and sighting of scenery outside of the image.

Abstract: A molding machine includes a drive unit for rotating and linearly moving a movable body. The drive unit includes a linear motor and a rotary motor. The linear motor includes a linear movement body having moving-side magnetic-pole portions and supported in an axially movable manner and a stationary body having stationary-side magnetic-pole portions adapted to linearly move the linear movement body. The linear movement body has moving-side inclined surfaces on which part of the moving-side magnetic-pole portions are disposed. The stationary body has stationary-side inclined surfaces which face the moving-side inclined surfaces and on which part of the stationary-side magnetic-pole portions are disposed. The rotary motor is incorporated into the linear movement body and is adapted to rotate an output shaft connected to the movable body.

Abstract: A new species of carboxypeptidase A.gamma. and a process for preparation thereof are disclosed. The new substance has an amino-terminal sequence with the primary structural formula of:Asn-Tyr-Ala-Thr-Tyr-His-Thr-Leu-Glu-Glu-Ile-Tyr-Asp-Phe-Met-Asp-Ile-Leu-Val -Ala-Glu-His-Pro-Gln-Leu-,and has the following physiocochemical and enzymochemical properties:(a) state: needle crystals,(b) molecular weight: 38,900 (according to gel permeation method),(c) constituent amino acids: As listed in Table 1,(d) metal contained: One Zn atom per molecule,(e) coefficient of sedimentation: 3.3,(f) isoelectric point: 4.3 (at an ionic strength of 0.3),(g) specific substrates: N.alpha.-carbobenzoxyglycyl-L-phenylalanine and casein,(h) Michaelis constant: 20 mM (N.alpha.-carbobenzoxyglycyl-L-phenylalanine as the substrate), and(i) optimum pH: 7 to 8.The new species of carboxypeptidase A.gamma. is extracted from porcine pancreas. The process for preparing the new species of carboxypeptidase A.gamma.