摘要:
A yarn winder in which a fluctuation of winding tension is avoided and the winding characteristics are made uniform from the most inner to the most outer layer. Yarn is wound by a winder in which a spindle 2 having a positively driven pressure roller 5 is positively driven, the pressure roller 5 being positioned so that it is not in contact with a tube 100 immediately after the yarn setting operation. After a predetermined amount of yarn layer has been wound on the tube 100, the pressure roller 5 is moved so that it contacts the yarn layer on the tube 100. The surface speed of the pressure roller 5 is controlled to be higher than that of an empty tube until the yarn is switched to the empty tube, wherein the controlled speed is approximately the same as or lower than the surface speed of a fully loaded tube, and the surface speed of the pressure roller is controlled to be approximately the same as the surface speed of the empty tube after the yarn has been switched to the empty tube.
摘要:
To improve the success rate of yarn switching by reducing the variation of the winding tension during the yarn switching operation, a turret type yarn winder is provided, wherein the upper yarn switching mechanism 8 and the lower yarn switching mechanism 9 are provided at positions wherein, when the empty bobbin 50 held by the spindle 4 is displaced by the rotation of the turret member 2 toward the yarn 60 supported by the respective yarn path restriction guides of the yarn switching mechanisms 8, 9, the circumference of the empty bobbin 50 is brought into contact with the yarn 60 at a contacting angle, which angle increases as the turret member rotates, and wherein the dog portion 30 mounted to the turret member 2 causes the yarn searching guide 25 of the lower yarn switching mechanism 9 to rotate in synchronism with the rotation of the turret member 2, and the guide plate 31 for forming the anchor yarn winding is actuated to move the yarn 60 in the axial direction of the bobbin 50.
摘要:
To provide a traverse-motion mechanism capable of easing the threading operation by reducing the heights of the yarn-separating fulcrum and the godet roller disposed upstream of a yarn-traversing fulcrum, of reducing times required for the manufacturing and assembling operation by simplifying the structure due to the reduction of the overall machine height, of minimizing the rise of selvage and ribbon wind generated in a package, and of readily adjusting the position of yarn turning point. A traversing unit 6-1 disposed at one end of the traverse-motion mechanism is offset from a regular position toward another traversing unit 6-4 so that a straight line connecting the opposite traverse ends (A) and (B) in the traversing unit 6-1 with each other is not parallel to an axis of a touch roller 7. In the traversing unit 6-1, three blades 15-1 through 15-3 are fixed on a first rotor 13 and two blades 20-1 and 20-2 are fixed on a second rotor 18 at equiangular positions in a rotary plane thereof, while the rotary centers of the first and second rotors 13, 18 are defined so that a rotary angle of the respective rotor, through which the yarn is conveyed by one blade on the one rotor while being in contact with the yarn-guiding surface 23 until released therefrom, is about 60.degree. in the first rotor 13 and 90.degree. in the second rotor 18 and a rotational ratio of the first rotor 13 relative to the second rotor 18 is 2:3.
摘要:
A yarn winder in which a fluctuation of winding tension is avoided and the winding characteristics are made uniform from the most inner to the most outer layer. Yarn is wound by a winder in which a spindle 2 having a positively driven pressure roller 5 is positively driven, the pressure roller 5 being positioned so that it is not in contact with a tube 100 immediately after the yarn setting operation. After a predetermined amount of yarn layer has been wound on the tube 100, the pressure roller 5 is moved so that it contacts the yarn layer on the tube 100. The surface speed of the pressure roller 5 is controlled to be higher than that of an empty tube until the yarn is switched to the empty tube, wherein the controlled speed is approximately the same as or lower than the surface speed of a fully loaded tube, and the surface speed of the pressure roller is controlled to be approximately the same as the surface speed of the empty tube after the yarn has been switched to the empty tube.
摘要:
To reliably carry out the yarn-catching operation and formation of bunch-winding and tail-winding, while using a bobbin having no yarn-catching groove thereon, and obtain a package with a shorter yarn end extended from the bunch-winding part, upstream of a pressure roller 7, a yarn-holding guide 24 is provided for guiding a running yarn to a bunch-winding position; downstream of an empty bobbin 70, a yarn-searching guide 29 is provided for guiding the yarn to the yarn-catching part or a threading guide 33 and a yarn-winding guide 37 movable toward a concave space (A) formed by the pressure roller 7 and the empty bobbin 70 carried on a spindle 4 to guide the yarn 80 running to a full bobbin 70' or others to a yarn-catching part B formed between the abutting end walls of adjacent empty bobbins 70 carried on the spindle 4.
摘要:
A yarn winder in which a fluctuation of winding tension is avoided and the winding characteristics are made uniform from the most inner to the most outer layer. Yarn is wound by a winder in which a spindle 2 having a positively driven pressure roller 5 is positively driven, the pressure roller 5 being positioned so that it is not in contact with a tube 100 immediately after the yarn setting operation. After a predetermined amount of yarn layer has been wound on the tube 100, the pressure roller 5 is moved so that it contacts the predetermined amount of yarn layer has been wound on the tube 100, the pressure roller 5 is moved so that it contacts the yarn layer on the tube 100. The surface speed of the pressure roller 5 is controlled to be higher than that of an empty tube until the yarn is switched to the empty tube, wherein the controlled speed is approximately the same as or lower than the surface speed of a fully loaded tube, and the surface speed of the pressure roller is controlled to be approximately the same as the surface speed of the empty tube after the yarn has been switched to the empty tube.
摘要:
A utility vehicle comprises a driver seat; a passenger seat positioned such that the passenger seat and the driver seat are arranged side by side in a rightward and leftward direction; a console box provided between the driver seat and the passenger seat; a shift lever operated by a driver to perform a shifting operation; and a grab member provided in the vicinity of the passenger seat and secured to the vehicle body frame; wherein the shift lever is provided between the driver seat and the passenger seat and is positioned closer to the driver seat than a center of the console box in the rightward and leftward direction; and the grab member is provided between the driver seat and the passenger seat and is positioned closer to the passenger seat than the center of the console box in the rightward and leftward direction.
摘要:
A biodegradable wrap film simultaneously provided with cutting suitability, wrapping suitability, and heat resistance, in addition to biodegradability provided in lactic acid resin, is provided. The biodegradable wrap film contains a lactic acid resin composition as the main component and having a value of storage modulus at 40° C. in the range of 100 MPa to 3 GPa as measured at a frequency of 10 Hz and a distortion of 0.1% by the dynamic viscoelasticity testing method from Method A of JIS K-7198, a value of storage modulus at 100° C. in the range of 30 MPa to 500 MPa, and a peak value of loss tangent (tan δ) in the range of 0.1 to 0.8, was developed. This film displays excellent microwave oven suitability, in addition to resiliency and softness, and stretching and tensile strength suited for application in wrap film for household use.
摘要翻译:还提供除了在乳酸树脂中提供的生物降解性之外,还具有切割适合性,包装适用性和耐热性的生物降解性保鲜膜。 生物降解性保鲜膜含有乳酸树脂组合物作为主要成分,并且在10Hz的频率下测定的在40℃的储能模量值为100MPa〜3GPa,变形为0.1%的变形为 JIS K-7198的方法A的动态粘弹性试验方法,100℃下的储能模量值在30MPa〜500MPa的范围内,损耗角正切值(tanδ)为0.1 至0.8,被开发。 该膜除弹性和柔软性外,还具有优异的微波炉适用性,以及适用于家用包装膜的拉伸和拉伸强度。
摘要:
[Problem] To provide a heat-shrinkable laminate film, a molded product and a container, having excellent fracture resistance, rigidity, transparency after addition for regeneration, and in particular excellent shrink finishing quality. [Means for solving] A heat-shrinkable laminate film is drawn in at least one axial direction including at least three layers having an intermediate layer and front and back layers on respective sides of the intermediate layer. The intermediate layer is constituted by a layer composed mainly of at least one polystyrene-based resin. The front and back layers are constituted by layers composed mainly of at least one polyester-based resin. The front and back layers have a thickness ratio of 75% or less based on the total thickness of the film. The polystyrene-based resin is preferably a block copolymer. Further, preferably the heat-shrinkable laminate film has a birefringence index (Δn) of 1.0×10−3 or more and 80.0×10−3 or less. A molded product and a container is obtained by using the heat-shrinkable laminate film.
摘要:
The present invention is directed to a catamenial tampon which includes a primary absorbent member and a withdrawal cord having a withdrawal portion and an attachment portion. The attachment portion is joined to the primary absorbent member. The withdrawal cord includes a composite yarn, which includes a continuous string, and a secondary absorbent member joined to a part of the continuous string. The continuous string is woven according to a predetermined weaving manner after being provisionally twisted, thereby forming the attachment portion and the withdrawal portion.