This invention relates to a tension buffer system for multi-wirepay-off system. The tension buffer system comprises guiding pulleys (4, 4a, 4b) adapted to guide wires (6, 6a, 6b) being paid off, and reversing pulleys (8). Each reversing pulley (8) is adapted to guide a wire (6, 6a, 6b) from the guiding pulley (4, 4a, 4b) and back to the guiding pulley (4, 4a, 4b), two reversing pulleys (8) are rotatably mounted on a first support (10), the first support (10) is pivoted around first support axis (12) lying between the two reversing pulleys (8) so that pivoting brings one of the two reversing pulleys (8) closer to the guiding pulley (4, 4a, 4b) while the other of the two reversing pulleys (8) more remote from said guiding pulley (4, 4a, 4b). This invention provides a mechanical device to balance the tension difference between multiple wires in the pay-off system to produce a steel cord with constant tension and satisfactory quality.

Systems for guiding line(s) including blocks through which the line(s) run. The blocks can include inner and outer guides with line running through both the inner and outer guides. The guides may include rollers, and an inner guide may be at least partially nested within an outer guide. The systems may be configured so that at least one of the blocks can move when the line moves and so that the first block and second block create tension in the line.

The invention discloses an apparatus for regulating winding tension as function of bobbin (2) diameter in a slit film tape or yarn (1) winder system carrying at least one automated winder. It comprises a dancing arm (3) equipped with a tension setting means or device (3B) which regulates the yarn tension. The inventive feature of the invention is that tension setting means (3B) is capable of changing resistance R of the dancing arm (3) as a function of the bobbin (2) diameter D during the winding process. The invention also provides a method for regulating winding tension as function of bobbin (2) diameter. The invention helps overcome a number of problems related to uniformness and consistency of package the fabric making industry is currently facing. It solves technical problem of winding bobbin throughout using same tension adjusted for dancing arm, resulting higher tension during unwinding at low bobbin sizes. It also helps reduce the necking or shrinkage of the fabric produced due to varying resultant winding tension.

The invention discloses an apparatus for regulating winding tension as function of bobbin (2) diameter in a slit film tape or yarn (1) winder system carrying at least one automated winder. It comprises a dancing arm (3) equipped with a tension setting means or device (3B) which regulates the yarn tension. The inventive feature of the invention is that tension setting means (3B) is capable of changing resistance R of the dancing arm (3) as a function of the bobbin (2) diameter D during the winding process. The invention also provides a method for regulating winding tension as function of bobbin (2) diameter. The invention helps overcome a number of problems related to uniformness and consistency of package the fabric making industry is currently facing. It solves technical problem of winding bobbin throughout using same tension adjusted for dancing arm, resulting higher tension during unwinding at low bobbin sizes. It also helps reduce the necking or shrinkage of the fabric produced due to varying resultant winding tension.

A system (10) for winding multiple elongated elements (12, 14) simultaneously under a substantially same tension on a single spool (16) comprises one pendulum arm (18) and one set of actuators (22) acting on the pendulum arm (18) and balancing with the sum of tensions of each elongated element (12, 14). The system (10) further comprises one or more balancing arms (26, 40): A first balancing arm (26) is attached to the pendulum arm (18), the other balancing arms (if any) are attached to the first balancing arm (26). Each balancing arm (26) is pivotable upon a balancing arm axis (28). A first set of one or more reversing pulleys (30) is positioned at one side of the first balancing arm axis (28) and a second set of one or more reversing pulleys (32) is positioned at the other side of said balancing arm axis (28). Each of the reversing pulleys (30, 32) guides an elongated element (12, 14) to be wound.

A system (10) for winding multiple elongated elements (12, 14) simultaneously under a substantially same tension on a single spool (16) comprises one pendulum arm (18) and one set of actuators (22) acting on the pendulum arm (18) and balancing with the sum of tensions of each elongated element (12, 14). The system (10) further comprises one or more balancing arms (26, 40): A first balancing arm (26) is attached to the pendulum arm (18), the other balancing arms (if any) are attached to the first balancing arm (26). Each balancing arm (26) is pivotable upon a balancing arm axis (28). A first set of one or more reversing pulleys (30) is positioned at one side of the first balancing arm axis (28) and a second set of one or more reversing pulleys (32) is positioned at the other side of said balancing arm axis (28). Each of the reversing pulleys (30, 32) guides an elongated element (12, 14) to be wound.

The present invention provides a wire electrode supply apparatus for suppressing wire electrode driving vibration for wire electrodes having a wide range of diameters and formed of various materials, thereby improving processed surface roughness. The wire electrode supply apparatus includes a back tension adjustment unit that adjusts a back tension of the wire electrode drawn from a source bobbin, a tension applying unit, and a constant pressure ejecting unit that ejects the wire electrode with constant pressure and rate after the transference via the tension applying unit and an electrical discharge machining unit. The tension applying unit includes a low tension applying unit that applies a tension to the wire electrode, and a high tension applying unit that can supply a higher tension. After the high tension applying unit supplies a tension, the low tension applying unit supplies a tension. Otherwise, only the low tension applying unit supplies a tension.

The present invention provides a wire electrode supply apparatus for suppressing wire electrode driving vibration for wire electrodes having a wide range of diameters and formed of various materials, thereby improving processed surface roughness. The wire electrode supply apparatus includes a back tension adjustment unit that adjusts a back tension of the wire electrode drawn from a source bobbin, a tension applying unit, and a constant pressure ejecting unit that ejects the wire electrode with constant pressure and rate after the transference via the tension applying unit and an electrical discharge machining unit. The tension applying unit includes a low tension applying unit that applies a tension to the wire electrode, and a high tension applying unit that can supply a higher tension. After the high tension applying unit supplies a tension, the low tension applying unit supplies a tension. Otherwise, only the low tension applying unit supplies a tension.

The present disclosure discloses a thread tension adjusting device comprising a body, a tension rod, an elastic element and an adjusting knob. A thread passing eye for inputting a thread is arranged below the body. A tension wheel and a thread passing wheel are rotatably arranged on the body. An adjusting knob is used for adjusting a rotational speed of the tension wheel. The elastic element has one end connected to the body and another end connected to the tension rod. The thread tension adjusting device may ensure stability of tensioning and transmitting of the thread by cooperation between the tension rod and the tension wheel, and improve precision for thread tension adjusting by the adjusting knob. In addition, the thread tension adjusting device may monitor thread breakage by the tension detector, and ensure operating stability and safety of the thread tension adjusting device.

A power paying-off cradle consisting of power paying-off component and framework. In the framework is a cavity with an upper opening; a wire tension balance mechanism is installed in the cavity; a displacement wheel is installed on the wire tension balance mechanism, and a position detector of the displacement wheel is installed on the inner side wall of the framework; a turning wheel is installed on the front top of the framework; a thread hole is installed in the front of the framework; wire on the paying-off spool enwinds the turning wheel and the displacement wheel successively and passes through the thread hole. The wire tension balance mechanism has damping effect on the displacement wheel. When the tension of the displacement wheel is greater than or less than the damping force, the displacement wheel moves in order to ensure consistency of the tension or the strain of wire.