摘要:
A machining center in which the moment (M) exerted on a support base (21) and support table (28) during a machinIng operation is remarkably reduced. The machining apparatus includes a pair of guide rails (29,30) extending in the longitudinal direction (X) relative to the workpiece upon which the machining head (32,35) is slidably supported either directly or via a table. The rear one (30) of this pair of guide rails (29,30) is made higher than the other guide rail (29), thereby reducing the reaction forces exerted upon the upper surfaces of the guide rails (29,30), and hence the moment (M) exerted on the supporting base (21).
摘要:
An apparatus for passing a thread (WT) through a member (26) formed with an opening (28), comprising; a first member (116) formed with a passageway (120) passing therethrough movable in an axial direction, the first member (116) comprising upper and lower parts (116a,116b) which are movable toward and away from each other in a direction substantially perpendicular to the axial direction; a second member (118) formed with a passageway (128) passing therethrough, the second member (118) and the first member (116) being movable toward and away from each other in the axial direction; a unit for interposing the member (26) formed with the opening (28) between the first and second members (116,118); a unit for transferring the thread to the passageway (120) of the first member (116); a unit for passing the thread through the passageway (120) of the first member (116), the opening in the member and the passageway (128) of the second member (118) by vacuum suction; and a unit for taking out the thread passed through the opening of the member from the first member (116).
摘要:
@ An apparatus for monitoring abnormality in a yarn winding apparatus, which is characterized by a means for previously setting a basic value of a winding factor, a means for detecting a present value of winding factor, a means for comparing the present value of winding factor detected by the winding factor detecting means with the basic value set by the basic value previously setting means, and a means for emitting an alarm signal when the detected present value of winding factor exceeds more than a set range from the set basic value as a result of comparison in the comparing means.
摘要:
A geared motor comprising: an output shaft (14) rotatably received in a housing (11); a sun gear (17) securely supported on the output shaft (14) in the housing (11) and having a plurality of external teeth (21); a ring gear (22) housed in the housing (11) and having a plurality of internal teeth (23) meshed with the external teeth (21) of the sun gear (17), and the internal teeth (23) of the ring gear (22) having a pitch circle larger than that of the external teeth of the sun gear and being larger in number than the external teeth (21) of the sun gear (17); supporting means (24) for supporting the ring gear (22) in such manner that the center axis of the ring gear (22) is eccentrically revolvable with respect to the axis of rotation of the output shaft (14) and the ring gear (22) is prevented from being rotated about its center axis; and drive means (28) for generating electromagnetic forces one group of which has a plurality of force directions radially inwardly directed and the other group of which has a plurality of force directions radially outwardly directed, the different groups being circumferentially successively displaceable and driving the ring gear (22) to radially inwardly and outwardly move so that the output shaft (14) is driven to rotate about its axis of rotation.
摘要:
A spindle drive type winding apparatus wherein a spindle (1) onto which a bobbin for winding a yarn thereonto to form a yarn package is inserted is driven so that a predetermined winding factor is controlled in accordance with a predetermined program. The spindle drive type winding apparatus is provided with a control device which comprises:
a peripheral speed detector (9) for detecting the peripheral speed of the yam package and generating a peripheral speed signal; a control (11) for controlling the rotational speed of the spindle and generating a control signal; a circuit for calculating the wound amount of the yarn package (12) based on the peripheral speed signal emitted from the peripheral speed detector and the signal emitted from the control and for generating a radius signal; and a function generator (13) for emitting a programmed winding signal obtained in accordance with a pattern based on the radius signal emitted from the calculating circuit.
The winding factor may be a peripheral speed of the yam package, and in this case the peripheral speed is detected by means of the peripheral speed detector. The winding factor may be tension in wound yarn, and in this case the tension in yam is detected by means of a tension detector. The winding apparatus may be driven at a constant wind ratio or at a constant wind angle.
摘要:
A bobbin holder comprises a rotatable support device (1) and a holding device (5) mounted on the support device for holding a bobbin (15) inserted thereon. The bobbing holding device comprises: at least a pair of bobbin holding members (5) made of an elastomer. The bobbin holding member has a cylindrical portion (5b) and a coned disc portion (5a) extending from the cylindrical portion and having an outer surface engaging with the bobbin. The bobbin holding device further includes a cylindrical spacer (6) inserted onto the cylindrical portions (5b) of the pair of bobbin holding members; and a device for axially urges the coned disc portions of the bobbin holding members so as to expand the coned disc portions.
摘要:
A speed reducer with rotation detector (100) is provided with a rotation detector (110) comprising a code plate (111) having the positional information corresponding to the rotation, a detecting portion (112) for detecting the positional information of the code plate (111) to transform the positional information to an electric signal for output, and an electronic device (113) having the function of processing the electric signal. The rotation detector (110) can detect the output rotation of a first shaft (130) which is an output shaft at high resolving power and at high accuracy. Also, the speed reducer with rotation detector (100) is used with a motor (190) to enable the full-closed control of the motor (190) to be made at high resolving power and at high accuracy.