Abstract: High production processing and high accuracy processing are selectively performed with a single press. To this end, there are provided a system and method for controlling a servo press 1 in which an eccentric rotation mechanism 20 is driven by a servo motor 21 and the rotating power of the eccentric rotation mechanism 20 is transmitted to a slide 3 through a toggle linkage 15, thereby vertically moving the slide 3. In the control system and method, the rotation of the servo motor 21 is controlled in response to a motor speed command rm calculated based on the deviation ? p of the position of the slide 3 and a positional gain G(?) preset according to a speed ratio of the slide 3.

Abstract: High production processing and high accuracy processing are selectively performed with a single press. To this end, there are provided a system and method for controlling a servo press 1 in which an eccentric rotation mechanism 20 is driven by a servo motor 21 and the rotating power of the eccentric rotation mechanism 20 is transmitted to a slide 3 through a toggle linkage 15, thereby vertically moving the slide 3. In the control system and method, the rotation of the servo motor 21 is controlled in response to a motor speed command rm calculated based on the deviation ? p of the position of the slide 3 and a positional gain G(?) preset according to a speed ratio of the slide 3.

Abstract: A coil component and a manufacturing method for producing the same permit a wire terminal to be bonded to an electrode with high reliability by implementing thermal compression bonding using a heater chip. The coil component comprises a bobbin around which a wire is wound, the wire having a solder layer on the outer peripheral surface of a core conductor and an insulating layer formed on the outer peripheral surface of the solder layer. The wire terminal is secured to the electrode provided on the bobbin by thermal compression bonding. A heated heater chip is applied to the terminal to break the insulating layer and to melt the solder layer at substantially the same time. Then, pressure is applied to the heater chip to provide intermetallic bonding between the core conductor and the electrode. Melted solder solidifies and covers the area around the core conductor, thereby securely bonding the wire terminal to the electrode.

Abstract: The present invention provides an operation apparatus for a press, of simple structure with lower cost.

Abstract: A coil component and a manufacturing method for producing the same permit a wire terminal to be bonded to an electrode with high reliability by implementing thermal compression bonding using a heater chip. The coil component comprises a bobbin around which a wire is wound, the wire having a solder layer on the outer peripheral surface of a core conductor and an insulating layer formed on the outer peripheral surface of the solder layer. The wire terminal is secured to the electrode provided on the bobbin by thermal compression bonding. A heated heater chip is applied to the terminal to break the insulating layer and to melt the solder layer at substantially the same time. Then, pressure is applied to the heater chip to provide intermetallic bonding between the core conductor and the electrode. Melted solder solidifies and covers the area around the core conductor, thereby securely bonding the wire terminal to the electrode.

Abstract: A press machine, whose set operating conditions, pressing state, etc., can be easily grasped and whose safety and operability in the pressing operation can be improved, has a console panel (26) provided with a crank angle display (70), a pressing state display (80), a sheet switch (106) for inputting control information into a control section, and a multi-display (102) capable of displaying a plurality of pieces of the control information at a time. The crank angle display (70) can be constituted of multiple light emitting sections (72) arranged into a circle, and successive ones (72a) of the light emitting sections (72) whose number corresponds to the crank angle can be turned on.

Abstract: The present invention is concerned with a technique for measuring the width (l) of a strip uncoiled from a coil material (3) to be fed to a press line, wherein linear displacement of both support shafts (4) on uncoiler mechanisms (1) adapted to support the coil material (3) from both sides using a mechanism including racks (8) and a pinion (5) is converted into rotational displacement so that an amount of actual linear displacement of both the support shafts (4) represented by (L.sub.1 +L.sub.2) is detected by detecting the rotational displacement of the pinion 5. The coil width is measured by subtracting the amount of linear displacement of the pinions (5) represented by (L.sub.1 +L.sub.2) from the distance (L) between both of support shafts which can be measured when both the support shafts (4) are displaced to predetermined positions where they are displaced to the rearmost ends.

Abstract: A chip coil which includes a bobbin, flange portions formed at opposite end portions of the bobbin, a wire wound around a barrel portion of the bobbin, and at least two counter-part blocks of magnetic particle-containing solid resin, disposed around the wound wire. The counter-part blocks of magnetic particle-containing solid resin are adapted to be fixed to each other into one combined unit.

Abstract: The disclosure is directed to an improved CR composite part provided with a discharge gap, in which discharge electrodes are provided on opposite surfaces of a substrate formed with a CR composite circuit, while an opening is provided between confronting forward ends of the discharge electrodes on the respective surfaces of the substrate, so that electrical discharge between both of the discharge electrodes is effected through the space for the opening so as to prevent adhesion of foreign matters between the discharge electrodes and also, to effectively obstruct formation of undesirable stray capacitance for stable discharging characteristics.