公开(公告)号：US06212867B1

公开(公告)日：2001-04-10

申请号：US09308856

申请日：1999-05-26

Applicant: Hellmut Lorenz

Inventor： Hellmut Lorenz

IPC: D01H124

CPC classification number: D02G1/082

Abstract: The invention relates to a false twist device for a synthetic multifilament yarn for use in false twist texturing machines. The false twist device comprises at least three sets of disks that are each arranged on an axle for rotation in the same direction. The axles are arranged to form an equilateral polygon such that the disks overlap in the center of the polygon. To keep a yarn tension as low as possible at a high yarn speed, the circumferential surface of the disks is the zone of a sphere or a torus with a circumferential surface radius that has a magnitude of at least 35 times the diameter of the twisted yarn.

Abstract translation: 本发明涉及一种用于假捻机的合成复丝纱线的假捻装置。 假捻装置包括至少三组盘，每组盘布置在轴上以沿相同的方向旋转。 轴被布置成形成等边多边形，使得圆盘在多边形的中心重叠。 为了在高纱线速度下保持纱线张力尽可能低，圆盘的圆周表面是具有至少是捻纱的直径的35倍的圆周表面半径的球体或圆环面 。

公开(公告)号：US4387557A

公开(公告)日：1983-06-14

申请号：US272939

申请日：1981-06-12

Applicant: Hellmut Lorenz

Inventor： Hellmut Lorenz

IPC: D02G1/08

CPC classification number: D02G1/087

Abstract: A yarn false twisting apparatus and method is provided which permits ready conversion from S to Z twist, or vice versa. The apparatus comprises a pair of friction discs which are rotatably mounted on a common carrier plate, and the carrier plate is pivotally mounted to the frame of the apparatus such that the discs may be selectively rotated between first and second operative positions disposed 180 degrees from each other. The discs are rotated in a common rotational direction in each operative position, and the yarn is advanced through a twisting zone between the discs in a direction parallel to a line extending perpendicularly between the axes of rotation of the discs. Thus conversion from S to Z twist, or vice versa, may be effected by pivoting the carrier plate between the two operative positions, without changing the direction of rotation of the discs or the yarn path of travel.

Abstract translation: 提供了一种纱线假捻装置和方法，其允许从S到Z捻的准备转换，反之亦然。 该装置包括一对可旋转地安装在公共载板上的摩擦盘，并且承载板枢转地安装到装置的框架上，使得盘可以在从每个位置180度设置的第一和第二操作位置之间选择性地旋转 其他。 盘在每个操作位置沿共同的旋转方向旋转，并且纱线沿平行于在盘的旋转轴线之间垂直延伸的线的方向前进到盘之间的扭转区域。 因此，可以通过在两个操作位置之间枢转承载板而不改变盘的旋转方向或纱线的行进路径来实现从S到Z扭转的转换，反之亦然。

公开(公告)号：US4383405A

公开(公告)日：1983-05-17

申请号：US273081

申请日：1981-06-12

Applicant: Karl Bauer ,  Peter Dammann ,  Hermann Kubler ,  Hellmut Lorenz

Inventor： Karl Bauer ,  Peter Dammann ,  Hermann Kubler ,  Hellmut Lorenz

IPC: D02G1/08

CPC classification number: D02G1/087

Abstract: A yarn false twisting apparatus and method is disclosed which comprises a pair of friction discs, with one of the discs being thin and flexible, and a pressure applying member for biasing the flexible disc toward the other disc locally at the twisting zone. The discs and pressure applying member are mounted to permit selective movement whereby the ratio of twist to yarn speed may be varied, and to achieve a desired twist in the advancing yarn. The biasing force of the pressure applying member is also adjustable, to achieve an essentially slipless operation by assuring that the torque exerted by the discs exceeds the natural restoring torque of the yarn.

Abstract translation: 公开了一种纱线假捻设备和方法，其包括一对摩擦盘，其中一个盘是薄且柔性的，以及用于在扭转区域局部地将柔性盘朝向另一个盘偏置的压力施加构件。 安装盘和压力施加构件以允许选择性运动，由此扭转与纱线速度的比率可以变化，并且在前进的纱线中实现期望的扭转。 压力施加构件的偏置力也是可调节的，以通过确保由盘施加的扭矩超过纱线的自然恢复扭矩来实现基本上无滑动的操作。

公开(公告)号：US5146739A

公开(公告)日：1992-09-15

申请号：US645464

申请日：1991-01-24

Applicant: Hellmut Lorenz

Inventor： Hellmut Lorenz

IPC: G01N33/36 ,  D02G1/02

CPC classification number: D02G1/0266

Abstract: A yarn false twist texturing process and apparatus wherein the tension of the advancing yarn is monitored. The resulting signal is processed through a time filter to produce a time averaged signal, and the time averaged signal is compared with a set point signal to produce an adjusting signal which acts to control the false twisting unit so as to provide a substantially constant tension. The adjusting signal is also used to detect deficiencies of the false twisting process which disturb the uniformity of the texturing process.

Abstract translation: 纱线假捻变形工艺和装置，其中监测前进纱线的张力。 通过时间滤波器处理所得到的信号以产生时间平均信号，并将时间平均信号与设定点信号进行比较，以产生用于控制假捻单元的调整信号，以提供基本恒定的张力。 调整信号也用于检测假捻过程的缺陷，这扰乱了纹理过程的均匀性。

公开(公告)号：US4408448A

公开(公告)日：1983-10-11

申请号：US273217

申请日：1981-06-12

Applicant: Karl Bauer ,  Peter Dammann ,  Hermann Kubler ,  Hellmut Lorenz

Inventor： Karl Bauer ,  Peter Dammann ,  Hermann Kubler ,  Hellmut Lorenz

IPC: D02G1/08 ,  D02G1/04 ,  D01H7/92

CPC classification number: D02G1/085

Abstract: A method and apparatus of false twisting a yarn is disclosed which utilizes a pair of endless belts mounted in crossing relation to define a twisting zone therebetween, and a pressure applying member for locally biasing at least one of the belts toward the other at the twisting zone. The yarn is advanced along a path of travel through the twisting zone, and the acute angle formed between each belt and the yarn path of travel is adjusted so as to generally correspond to the desired twist angle of the yarn in its twisted condition. Further, the speed of each belt is adjusted so as to optimize the yarn tension conditions both preceding and following the belts. To achieve an essentially slipless operation, the pressure exerted by the biasing means is adjustably controlled so that the torque exerted by the belts exceeds the natural restoring torque of the yarn.

Abstract translation: 公开了一种假捻加捻纱线的方法和装置，该方法和装置利用一对以交叉关系安装的环形皮带，以限定纱线之间的扭转区域;以及压力施加部件，用于在扭转区域中将至少一个皮带朝着另一个带局部偏置 。 纱线沿着通过扭转区域的行进路径前进，并且调整每个带和行进纱线之间形成的锐角，以便大致对应于处于扭曲状态的纱线的期望扭转角度。 此外，调整每个皮带的速度，以便优化在皮带之前和之后的纱线张力条件。 为了实现基本上无滑动的操作，可调节地控制由偏置装置施加的压力，使得由皮带施加的扭矩超过了纱线的自然恢复扭矩。

公开(公告)号：US4391091A

公开(公告)日：1983-07-05

申请号：US273196

申请日：1981-06-12

Applicant: Hellmut Lorenz

Inventor： Hellmut Lorenz

IPC: D02G1/08

CPC classification number: D02G1/087

Abstract: A yarn false twisting apparatus and method is provided which permits ready conversation from S to Z twist, or vice versa. The apparatus comprises a pair of friction discs which are rotatably mounted on a common carrier plate, and the discs are rotated in opposite directions by a drive system which includes a whorl mounted to each supporting shaft, and an endless drive belt having a run which engages opposite sides of the two whorls. The carrier plate is designed to permit the respective positions of the two discs to be reversed, and the direction of rotation of each disc to be reversed, to thereby convert from S to Z twist, or vice versa. In other embodiments, conversion between S and Z twist may be effected by the axial displacement of the two discs, or by the use of the two pressure applying members which define two separate twisting zones and which are alternately actuated.

Abstract translation: 提供了一种纱线假捻设备和方法，其允许从S到Z捻的准备对话，反之亦然。 该装置包括一对可旋转地安装在公共载板上的摩擦盘，并且盘通过包括安装到每个支撑轴上的螺旋的驱动系统以及具有接合的环形传动带的相反方向旋转 两轮的两边。 承载板被设计成允许两个盘的相应位置反转，并且每个盘的旋转方向被反转，从而从S转换成Z扭曲，反之亦然。 在其它实施例中，可以通过两个盘的轴向位移，或者通过使用限定两个分开的扭转区并交替致动的两个压力施加构件来实现S和Z之间的扭转转换。

公开(公告)号：US06430912B1

公开(公告)日：2002-08-13

申请号：US09771768

申请日：2001-01-29

Applicant: Friedhelm Lenz ,  Hellmut Lorenz

Inventor： Friedhelm Lenz ,  Hellmut Lorenz

IPC: D02G100

Abstract: A yarn false twist texturing apparatus having a plurality of side by side processing stations for texturing a plurality of thermoplastic yarns, wherein at each station a first feed system withdraws the yarn from a feed yarn package, and advances the yarn to a false twist zone composed of a heater and a cooling device, as well as a twisting unit. A second feed system withdraws the yarn from the false twist zone and advances it to a takeup device. The cooling device includes a cooling tube, with the yarn spiraling in contact with its outer surface. For an intensive cooling of the yarn according to the invention, the cooling tube is cooled from the inside with a coolant flow, which flows in a direction opposite to the direction of the advancing yarn.

公开(公告)号：US06301870B1

公开(公告)日：2001-10-16

申请号：US09284739

申请日：1999-08-19

Applicant: Heino Bünger ,  Hellmut Lorenz

Inventor： Heino Bünger ,  Hellmut Lorenz

IPC: D01H792

CPC classification number: D02J1/08 ,  D02G1/0266

Abstract: A false twist texturing machine for the texturing of synthetic threads in one handling position at a time, in which a heating device and a false twist unit are disposed within a false twist zone. In an after-treatment zone are disposed a second heating device and a counter-twist apparatus. In this case a residual twist left in the thread from the false twist unit is removed by the counter-twist apparatus. The counter-twist apparatus is for this disposed in one plane with the second heating device, so that the thread is run substantially in a straight thread path.

Abstract translation: 一种用于在一个处理位置中的合成线的纹理的假捻变形机，其中加热装置和假捻单元布置在假捻区域内。 在后处理区域中设置有第二加热装置和逆捻装置。 在这种情况下，通过逆捻装置去除来自假捻单元的线中残留的扭曲。 逆捻装置用于与第二加热装置设置在一个平面中，使得螺纹基本上在直线路径中运行。

公开(公告)号：US5794429A

公开(公告)日：1998-08-18

申请号：US651521

申请日：1996-05-22

Applicant: Detlev Overstrass ,  Hellmut Lorenz

Inventor： Detlev Overstrass ,  Hellmut Lorenz

IPC: D02G1/08 ,  D01H1/24 ,  D01H7/46

CPC classification number: D02G1/082

Abstract: A yarn false twisting apparatus which comprises a drive motor and a yarn false twist assembly, both mounted on a base frame. The yarn false twist assembly comprises a plurality of spindles mounting friction disks which are rotated in the same direction by the motor, and the assembly is releasably mounted to the base frame so it can be separated from the base frame by withdrawing the assembly in an axial direction. The drive motor has a drive pulley, and at least one of the spindles has a belt pulley, which can be interconnected via a drive belt. The drive belt is arranged in a drawer-like housing, which is displaceable in the operating plane of the drive belt. At its free end, the belt pulley mounts a cone, which ensures that the drive belt slides onto the belt pulley when mounting the false twist assembly to the base frame.

Abstract translation: 一种纱线假捻设备，其包括安装在基架上的驱动马达和纱线假捻组件。 纱线假捻组件包括多个主轴，安装摩擦盘，其通过马达沿相同的方向旋转，并且组件可释放地安装到基座上，使得其可以与基座分离，通过以轴向方式抽出组件 方向。 驱动马达具有驱动滑轮，并且至少一个主轴具有皮带轮，该皮带轮可以经由传动皮带互连。 驱动带布置在抽屉式壳体中，该壳体可在驱动带的操作平面中移动。 在其自由端，皮带轮安装锥体，这确保当将假捻组件安装到基架上时，传动带滑动到皮带轮上。

公开(公告)号：US4051655A

公开(公告)日：1977-10-04

申请号：US709319

申请日：1976-07-28

Applicant: Hellmut Lorenz ,  Heino Bunger

Inventor： Hellmut Lorenz ,  Heino Bunger

IPC: D02G1/08 ,  D02G1/04 ,  D01H7/92

CPC classification number: D02G1/082

Abstract: In combination with a friction false twist assembly including yarn supply means to feed a synthetic filamentary polymer yarn to a friction false twisting device and yarn take-up means to collect a false twist texturized yarn from the twisting device, preferably with means to heat-set the false twisted yarn being fed to the twisting device, this invention provides an improved friction false twist element comprising an axially elongated rotational body having a sleeve hub with a plurality of disc-shaped flanges formed integrally thereon at axially spaced positions, the integral hub and flanges being made of a molded, durable and rigid plastics material, e.g. a thermosetting resin, each flange carrying a circular yarn contacting ring as a rim fastened thereto and providing a wear-resistant, roughened outer circumferential surface ideally suited to the friction twisting of the yarn. In a preferred form, the twist element is made up of a thin metallic layer onto which a wear-resistant surface layer is applied. By including a metallic powder filler in the plastic rotational body, sufficient thermal conductivity can be maintained to transfer heat away from the yarn contacting surface.