摘要:
A mold having a cavity for shaping a three-dimensional object, which comprises a photocured resin of a photocurable resin composition comprising
(A) a liquid photocurable resin, and (B) at least one reinforcing agent selected from the group consisting of inorganic solid particles having an average particle diameter of 3 to 70 µm and a whisker having an average diameter of 0.3 to 1.0 µm, a length of 10 to 70 µm and an aspect ratio of 10 to 100 and optionally, in which the inner surface of the cavity is covered by a solid film having a thickness of 5 to 1000 µm.
摘要:
A yarn traverse apparatus which prevents adjacent blades from interfering with each other and breaking even if blades of any of traverse mechanisms are out of phase and which allows the traverse mechanisms to be installed and removed easily. The yarn traverse apparatus includes a plurality of traverse mechanisms arranged so as to be adjacent to one another with respect to a plurality of juxtaposed bobbins. Each traverse mechanism has a set of two shafts arranged upstream of a corresponding bobbin. The two shafts are orthogonal to a shaft of the corresponding bobbin and rotate in opposite directions. Each of the two rotating shafts has blades attached thereto, the blades serving to traverse a yarn. Each traverse mechanism is arranged to form two surfaces of rotation when the blades attached to the set of two rotating shafts rotate. The plurality of such traverse mechanisms are arranged so that loci of rotation of the blades belonging to adjacent sets partially intersect. When yarns are traversed by such yarn traverse apparatus, surfaces of rotation formed by the blades attached to the two shafts of rotation of each of the adjacent traverse mechanisms are uniformly as well as sufficiently inclined with respect to a surface formed by a yarn in a single direction as viewed in vertical directions, so that the surfaces of rotation formed by the blades belonging to the adjacent sets will not interfere with each other.
摘要:
A yarn winder, which is provided with good operability and which can be used for winding various kinds of yarns, is proposed by automatically setting the moving speed of a bobbin holder (8) so that it is suitable for increasing yarn package wound onto the winding bobbin holder. In the winder, while a contact roller (7) is pressed onto a bobbin (9) inserted onto a bobbin holder (8) or a yarn layer wound on the bobbin (9), a yarn (Y) is traversed by means of a traverse apparatus (6), and thus, the yarn is wound on the bobbin. The movement of the contact roller due to increase of the wound yarn is detected by a sensor (16), and the drive means is actuated based on signals detected by the sensor so as to move the bobbin holder in such a direction that it moves away from the contact roller. The drive means is a means which is actuated by signals from the sensor detecting the amount of the movement of the contact roller, and the winder is provided with speed varying means for varying the amount of the speed of the drive means and control means for stepwise or continuously increasing the speed of the drive means.
摘要:
A draw-texturing apparatus comprises a heating device (3) for heating a running yarn (Y) and a false twisting device (5) disposed downstream of the heating device (3) for imparting twists to the yarn (Y). The apparatus further comprises a twist stopping device (11), disposed in the heating device (3), for stopping the run back of the twists imparted by the false twisting device (5). In the apparatus, drawing point of the yarn (Y) is not adversely affected by false twisting torque or vibration of the yarn (Y), and a textured yarn being free from unevenness in dyeability and having a high quality can be obtained by the apparatus.
摘要:
A yarn winder, which is provided with good operability and which can be used for winding various kinds of yarns, is proposed by automatically setting the moving speed of a bobbin holder (8) so that it is suitable for increasing yarn package wound onto the winding bobbin holder. In the winder, while a contact roller (7) is pressed onto a bobbin (9) inserted onto a bobbin holder (8) or a yarn layer wound on the bobbin (9), a yarn (Y) is traversed by means of a traverse apparatus (6), and thus, the yarn is wound on the bobbin. The movement of the contact roller due to increase of the wound yarn is detected by a sensor (16), and the drive means is actuated based on signals detected by the sensor so as to move the bobbin holder in such a direction that it moves away from the contact roller. The drive means is a means which is actuated by signals from the sensor detecting the amount of the movement of the contact roller, and the winder is provided with speed varying means for varying the amount of the speed of the drive means and control means for stepwise or continuously increasing the speed of the drive means.
摘要:
In an automatic bobbin changing apparatus of a winding machine having a plurality of work stations disposed along the lengthwise direction of a machine frame, each winding portion of work station is provided with: a yarn treating device including a yarn sucking device (21), a yarn lifting guide (22), a yarn cutting device (24), a yarn gathering arm (61) and yarn threading arm (63); cradle turning device including a cradle (13) and a cradle turning motor (31); an empty bobbin donning device including an empty bobbin arm (51); and a package receiver (83), and disposed in the winding machine is a control member for operating the yarn treating device, the cradle turning device, the empty bobbin donning device and the package receiver (83) when at least one of packages at the winding portions becomes a state to be changed.
摘要:
An apparatus for heat treating a synthetic yarn comprises a heater body (11) for completely or partially encircling the synthetic yarn, which is being false twisted or being drawn and false twisted, in a condition non-contacting therewith, a heating member (12,22) disposed in the heater body for heating the heating wall of the heater body at a high temperature, and yarn guides (14,24) disposed in a yarn passage surrounded by the heating wall of the heater body (11). In a first embodiment, the heater body (11) and the heating member (12,22) are longitudinally divided into at least two. In a second embodiment, the yarn guides (14,24) are provided with yarn guide heating members (15) which are different from the heating member for heater body (11).
摘要:
An axial disturbance device used in a yarn take-up machine which includes a traversing yarn guide (44) for winding a yarn on a yarn package (41) supported on a cradle arm (42), and a cam member (82) rotatable about a fixed axis, the traverse width of the traversing yarn guide (44) being changed by the rotation of the cam member (82) about the fixed axis; comprising: an axial disturbance link (84) rotatably supported on the cam member (82) and having a cam surface (89); a cam-member tilting rod (85) connected at its one end to the cradle arm (42) of the yarn package (41) and at its the other end to the axial disturbance link (84); a cam-member stopping link (87) rotatably supported on a fixed shaft (86) and engageable with the cam member (82), the stopping link (87) being connected with the cam-member tilting rod (85); an axial disturbance bar (92) disposed and movable in parallel relationship to the cam member (82); and an axial disturbance cam (91) rotatably supported on the axial disturbance bar (92) and engaged with the cam surface (89) of the axial disturbance link (84).