33results about How to "Inhibition of tension changes" patented technology

The object of the present invention is to provide a timing belt capable of reinforcing the tensile rigidity of the belt, preventing local deflection of the core wire due to polygonal engagement by adjusting the flexibility on the outer peripheral side of the pitch wire, and improving the timing belt. resistance to flex fatigue. The timing belt (1) includes: an endless belt body (3); a plurality of teeth (2) formed at predetermined intervals along the inner peripheral surface of the belt body (3); The core wire (6); and the intermediate canvas (7) arranged on the outer peripheral side of the core wire (6) in the belt body (3), wherein the intermediate canvas (7) has stretchability along the circumferential direction.

To effectively restrict wire tension fluctuation generated on the wire supply side from a brake roller.

An overend unwind system for unwinding tacky elastomeric fiber threads such as uncoated spandex thread, capturing the ballooning affect of the thread as the thread leaves the spool, applying a first-stage tension control on the thread adjacent where the thread leaves the spool, feeding the unwound thread to a nip in a downstream process, and applying a final tension increment to the thread adjacent where the thread enters the downstream process. All thread guide surfaces encountered by the thread after leaving the spool, and while the thread is under designed operating tension, are moving surfaces, such that the tensioned thread thereby experiences a reduced level of drag as the thread traverses its path of travel from the spool to the downstream process.

A processing apparatus (10) applies a processing (Pn) to a continuous band-shaped work (1) by intermittently stopping the work (1) which is running along a predetermined running path (PL). In the processing apparatus, a variation in the tension of the work (1) which may be produced by the intermittent stoppage of the work (1) is effectively suppressed. A work conveying part (30) comprises an endless annular body (37a) wrapped around conveying rolls (31, 32), a first mobile body (34a), and a second mobile body (34b). A first drive roll (37e) circulatingly drives the endless annular body (37a) continuously at a predetermined speed so that the endless annular body (37a) performs the same running operation and accumulating operation as the work (1) in the area where the endless annular body (37a) is arranged along the running path. An intermittent feeding part (31b) intermittently stops the endless annular body (37a) when the work (1) is stopped.

Provided is a polarizing film free of the unevenness in hue. The polarizing film is obtained by treating a polyvinyl alcohol film in order of swelling, dyeing, boric acid treatment and rinse treatment, subjecting the film to uniaxial stretching in a boric acid treatment step and / or a step before the same and further maintaining the tension acting on the film respectively substantially constant in the respective steps after the stretching treatment, wherein the polyvinyl alcohol film is successively treated in order of the swelling treatment, the dyeing treatment, the boric acid treatment and the rinse treatment, the film is subjected to the uniaxial stretching in the boric acid treatment step and / or the step before the same and further tension control of the film is performed in the respective steps after the stretching treatment, so that the travel of the film is stabilized and the unevenness of the hue can be reduced.

The present invention stabilizes a yarn tension in a yarn winder in which a plurality of winding units are disposed, each of the winging units being provided with a yarn slack eliminating device. A transmitted force adjusting mechanism is provided to adjust a rotative driving force transmitted by a slack eliminating roller of a yarn slack eliminating device to an unwinding tension applying member. The transmitted force adjusting mechanism can be set so that when a load acting on the unwinding tension applying member increases above a predetermined value, the unwinding tension applying member rotates or rotatively moves independently of the slack eliminating roller. When winding tension is weak, the unwinding tension applying member rotates integrally with the slack eliminating roller to tense a yarn. When the winding tension exceeds a predetermined value, the unwinding tension applying member prevents the winding tension from becoming excessive to suppress a variation in tension. When the transmitted force adjusting mechanism is configured so as to vary the force transmitted to the unwinding tension applying member, it is easy to deal with spinning conditions.

The present invention provides an edge forming device of a loom, which is capable of increasing the speed of the loom. The edge forming device (1) forms a hemmed weave using the first edge yarns (16a, 16b) and the second edge yarns (16c), which includes means for displacing the path of the first edge yarns (16a, 16b) in the weaving direction. A side yarn path switching device (2) and a side yarn opening device (3) for displacing the path of the second side yarn (16c) in the up and down direction, the side yarn path switching device (2) has: a first side yarn (16a , 16b) the side yarn guiding member (5) of the pierced eyelet (4) and the drive device (8) for switching the position of the eyelet (4) between the left and right positions across the second side yarn (16c), the side yarn opening The device (3) includes a matching part (9) that displaces the path of the second side yarn (16c) in the up-down direction by cooperating with the second side yarn (16c) and displacing the second side yarn (16c). The two side yarns (16c) pass through the position on the side of the side yarn guide member (5) relative to the vertical direction relative to the eyelet (4) on the side of the first driving device (8) and through the front end of the side yarn guide member (5). Revolving on the revolving track at the position opposite to the first driving device (8).

An object of the present invention is to provide a transverse looper in which fluctuations in tension of a metal strip are suppressed. A transverse looper (6) in a continuous processing line for metal strips (2), which has: fixed rollers (7); a looper (17), which has coils for winding the metal strip together with the fixed rollers Roller (8), and the looper moves in order to change the distance between the fixed roller and the winding roller in the conveying direction of the metal strip, thereby changing the position of the metal strip in the transverse looper. the accumulation volume; and the main support roller car (26), which has backup rollers (9) supporting the metal strip erected between the fixed roller and the winding roller, and moves in the same direction as the looper car, The looper car and the main support roller car have independent looper winches (20), exit side winches (27), and entrance side winches (28), respectively, and can move independently.

The invention provides an end yarn insertion device which clamps the end yarn to insert into the internal of knitted fabrics. End yarn insertion device (1) is set on a flat knitting machine for glove (2), with a guide track (23) and a base (31) sliding transitionally along the guide track (23). The base (31) is equipped with a movable object (32) shifting relatively relative to the base (31). Themovable object (32) is equipped with an end yarn hook (33) and an end yarn pressing foot (34). The end yarn hook (33) shifts between the capture position of capture yarn and the hook backoff positionof knitting needle backoff. The end yarn pressing foot (34) acts continuously with the end yarn hook (33), shifting on the clip position where it coordinates with the end yarn hook on the capture position to span support position supporting yarn captured by the end yarn hook and on the pressing foot backoff position where it yields with the knitting needle and the end yarn hook (33). A second driving mechanism (26) drives the end yarn hook (33) to shift between the capture position and the hook backoff position. The base (31) is equipped with a stopper (48). The stopper (48) jams and fixes the end yarn pressing foot(34) shifting from the pressing foot backoff position to the support position to prevent shifting, ensure that the end yarn pressing foot stands by on the stand-by position where the yarn of yarn feeding yields. And the end yarn pressing foot (34) is detached from the stopper (48) by shifting the movable object (32) relatively relative to the base(31).

A conveyance apparatus includes a conveyance roller, a conveyance motor, a back tension roller, a conveyance speed detector, a brake, and a controller. The controller is configured to: based on a conveyance speed of a web detected by the conveyance speed detector, control a value of a drive control parameter of the conveyance motor such that the conveyance speed of the web is equal to a target speed; and, based on an output torque of the conveyance motor corresponding to the value of the drive control parameter, adjust a braking force of the brake applied to the back tension roller which applies a tension to the web such that the tension of the web is equal to a target tension.

The invention provides an end yarn insertion device which clamps the end yarn to insert into the internal of knitted fabrics. End yarn insertion device (1) is set on a flat knitting machine for glove (2), with a guide track (23) and a base (31) sliding transitionally along the guide track (23). The base (31) is equipped with a movable object (32) shifting relatively relative to the base (31). Themovable object (32) is equipped with an end yarn hook (33) and an end yarn pressing foot (34). The end yarn hook (33) shifts between the capture position of capture yarn and the hook backoff positionof knitting needle backoff. The end yarn pressing foot (34) acts continuously with the end yarn hook (33), shifting on the clip position where it coordinates with the end yarn hook on the capture position to span support position supporting yarn captured by the end yarn hook and on the pressing foot backoff position where it yields with the knitting needle and the end yarn hook (33). A second driving mechanism (26) drives the end yarn hook (33) to shift between the capture position and the hook backoff position. The base (31) is equipped with a stopper (48). The stopper (48) jams and fixes the end yarn pressing foot(34) shifting from the pressing foot backoff position to the support position to prevent shifting, ensure that the end yarn pressing foot stands by on the stand-by position where the yarn of yarn feeding yields. And the end yarn pressing foot (34) is detached from the stopper (48) by shifting the movable object (32) relatively relative to the base(31).

The coating film transfer tool includes: a feeding core around which transfer tape is wound and that feeds a piece of transfer tape, the piece of transfer tape including a piece of base tape and a coating film that is provided on one surface of the piece of base tape; a transfer head that presses the coating film against a transfer target and transfers the coating film thereonto; a winding core that winds up the piece of base tape from which the coating film has been transferred; and an intermediate roller that rotates as the piece of transfer tape travels, in contact with a first surface of the piece of transfer tape fed from the feeding core, the first surface being a surface on which the coating film is not provided. A second surface of the intermediate roller is adhesive with respect to the first surface.

The invention provides a winding device, a tension device and a winding method. A winding device 100 which winds a wire 3 around a core 11 includes the core 11, which rotates axially and around which the wire 3 is wound; a roller 21 which rotates axially and feeds the wire 3, which is wound around the roller 21, to the core 11; and a tension device 15 which adjusts a tension of the wire 3 that issupplied to the core 11 from the roller 21. A winding shape and a winding diameter of the wire 3 wound around the roller 21 are substantially identical to a winding shape and a winding diameter of the wire 3 wound around the core 11.

The invention provides a compound cladding positive pole material of a lithium ion battery and a preparation method of the compound cladding positive pole material. The positive pole material comprises a positive pole material base body and a cladding layer, wherein the cladding layer comprises two parts: a metal oxide main body framework layer with a porous three-dimensional structure, a surface layer distributed on the main body framework layer and a rapid ion conductor layer located in a pore. The compound cladding layer produced by the method has a relatively large and controllable specific surface area, and the contact between the cladding layer and electrolyte can be effectively improved, and the rate performance of the material can be effectively improved; meanwhile, the compound cladding layer has good chemical stability, and a contact side reaction between the positive pole material base body and the electrolyte is inhibited; and meanwhile, the damages to the surface cladding layer of the material, caused by the deformation in a rolling process of a pole piece, and the tension change of the cladding layer in a circulating process are inhibited; and the degradation of the positive pole material in the circulating process can be effectively improved and the circulating stability of the battery is improved.