摘要:
To provide a mold clamping apparatus that a new actuator is not necessary for a mold thickness adjustment and that the mold thickness adjustment can be performed at low cost. A mold clamping apparatus has a tie bar having a piston and a coupled groove, a cylinder for mold clamping that has the piston of the tie bar built in and that pressured driving liquid for generating mold clamping force is supplied, a half nut coupled with the tie bar releasably by meshing with the coupled groove, a position sensor detecting a position of a moving direction of the tie bar, a direction change valve changing a supply of the driving liquid between a first cylinder chamber and a second cylinder chamber, and a control apparatus positioning a position of the tie bar at a position that the half nut and the coupled groove are able to be meshed by controlling the direction change valve in response to the position of the tie bar detected by the position sensor.
摘要:
There is provided a release agent spray method and apparatus which, by utilizing the servo function of a servo motor-driven, electrically-powered die clamping apparatus capable of positioning a movable die plate at any position in die opening/closing directions, makes it possible to shorten the cycle time of a spraying process and to simplify the construction of the spray apparatus. The method for spraying a release agent in a die casting machine includes the steps of: installing a spray device having a spray head on a movable die plate or a fixed die plate such that the direction of movement of the spray head from a stand-by position to a position between a movable die and a fixed die is perpendicular to the direction of movement of the movable die; setting a spray position between the fixed die and the movable die based on a preset spray distance and the thicknesses of the fixed and movable dies, the spray position being such as to ensure the spray distance between the spray head and the die cavity surface of each of the fixed and movable dies; moving the movable die plate in the die closing direction and, at the same time, moving the spray head toward the spray position and positioning the spray head at the spray position; stopping the movement of the movable die plate when it has reached a position at which the distance between the spray head and the die cavity surface of the movable die and the distance between the spray head and the die cavity surface of the fixed die both become equal to the spray distance, thereby positioning the movable die plate at that position; spraying a release agent from the spray head onto the cavity surfaces of the movable die and the fixed die; and moving the movable die in the die opening direction and, at the same time, retreating the spray head to the stand-by position.
摘要:
A liquid crystal display device that can be fabricated more simply as compared with a conventional device and suitably used in a liquid crystal display television satisfying both high pixel transmittance and wide viewing angle display characteristics is provided. The liquid crystal display device includes a pair of substrates including at least one transparent substrate, a liquid crystal layer interposed between the pair of substrates, and a liquid crystal alignment layer interposed between the liquid crystal layer and at least any one of the pair of substrates. On the liquid crystal alignment layer, a plurality of closed regions having a liquid crystal alignment direction different from the surrounding liquid crystal alignment direction are arranged. In the liquid crystal display element, each of the closed regions has such a shape that the head and tail are distinguishable along the surrounding liquid crystal alignment direction.
摘要:
Target velocity data D14 specifying injection operation required for a injection cylinder unit is set in advance, the injection operation is performed actually, command data D17 given to the injection cylinder unit during the injection operation and detected velocity data D15 indicating the operation performed by the injection cylinder unit are recorded, correction value data D18 is calculated from a difference between the detected velocity data D15 and the target velocity data D14 to correct the command data D17 of the previous injection operation by using the correction value, auxiliary amplifier command data D19 is generated as the command data for the next injection operation, and the injection cylinder unit is operated by giving the generated auxiliary amplifier command data at the time of the next injection operation.
摘要:
A method of producing a three-dimensional structure contains the steps of: arranging a substrate close to a tip of a needle-shaped fluid-ejection body having a fine diameter supplied with a solution, ejecting a fluid droplet having an ultra-fine diameter toward a surface of the substrate by applying a voltage having a prescribed waveform to the needle-shaped fluid-ejection body, making the droplet fly and land on the substrate, and solidifying the droplet after the fluid droplet is landed on the substrate; further a three-dimensional structure has a fine diameter comprises droplets having an ultra-fine particle diameter, wherein the structure is grown by solidifying the droplets and stacking the solidified droplets.
摘要:
There is provided a mold clamping apparatus which has a space-saving apparatus construction and can easily carry out mold replacement. The mold clamping apparatus includes: a base; a fixed die plate, fixed on the base, for mounting a fixed mold thereto; a movable die plate, disposed opposite the fixed die plate and movably on the base, for mounting a movable mold thereto; a mold opening/closing means for moving the movable die plate closer to and away from the fixed die plate; a plurality of mold clamping cylinders provided in the fixed die plate; mold clamping pistons fit in the mold clamping cylinders; a plurality of tie bars, each detachably mountable at one end to each mold clamping piston and penetrating the movable die plate and extending; a coupling means for releasably coupling each tie bar to the movable die plate at a position as determined depending on the sum of the thickness of the fixed mold and the thickness of the movable mold; and a tie bar retreating means which, when the movable die plate is in a backward position to form a space for mold replacement operation, moves at least one of the plurality of tie bars, which obstructs the mold replacement operation, backward to a retreat position.
摘要:
An electrostatic attraction fluid jet device of the present invention is so arranged that a nozzle (4) is formed so as to correspond to a meniscus equivalent to a tip portion in the form of a taylor cone formed in a process of an electrostatic attraction of ink (2) as a conventional fluid. A diameter of an ink-ejecting hole (4b) of the nozzle (4) is set to be substantially the same as a diameter of the tip portion, which is about to be ejected, of the meniscus (14) of ink. Moreover, the diameter of the ink-ejecting hole (4b) of the nozzle (4) is set to be equal to or less than a droplet diameter of the ink (2) which has just been ejected. Therefore, it is possible to provide an electrostatic attraction fluid jet device which can realize a recording device which has high resolution, is safe and is highly versatile.
摘要:
A manufacturing method of a circuit substrate, in which an electronic circuit is formed on a surface of a base member by a solution jetting device. The manufacturing method comprises: jetting liquid drops of a solution which is supplied into a nozzle having a discharge port with an inner diameter of 0.1 μm to 100 μm and includes a plurality of fine particles to form an electronic circuit by melting and sticking to one another and a dispersant for dispersing the fine particles, from the discharge port toward the surface of the base member by applying a voltage of an arbitrary waveform to the solution to charge the solution; and exposing the jetted liquid drops received on the surface of the base member to light or heat to make the fine particles melt and stick to one another.
摘要:
A liquid jetting apparatus (50) to jet a droplet of a charged liquid solution onto a base material, having: a nozzle (51) in which an edge portion thereof is arranged to face the base material K having a receiving surface to receive the jetted droplet, and an inside diameter of the edge portion from which the droplet is jetted is not more than 30 [μm]; and a liquid solution supplying section (35) to supply the liquid solution into the nozzle (51), wherein a jetting electrode (58) of the jetting voltage applying section (35) is provided on a back end portion side of the nozzle, and an inside passage length of the nozzle is set to at least not less than ten times of the inside diameter.
摘要:
An image forming method of the present invention begins with a first image transfer step for thermally transferring a first toner image from a first image carrier to a second image carrier contacting it. Subsequently, in a second image transfer step, the first toner image carried on the second image carrier and a second toner image newly formed on the first image carrier are thermally transferred to opposite sides of a recording medium substantially at the same time. Higher image transfer temperature is assigned to the second image transfer step than to the first image transfer step.