Tension-adjusting gear in the spinning bobbin-winding machine
Technical field
The utility model relates to textile machine, the tension-adjusting gear in the bobbin-winding machine that particularly spins.
Background technology
The radical function of bobbin-winding machine be with some cops by certain uniform tension, remove after harmful in the part yarn shelter a little, be wound into certain-length, density is even, the cheese that conforms to quality requirements is for the operation use of weaving of road, back.Present domestic most textile mills use is still not improved 1332 serial bobbin-winding machines in decades, and problem is more in the use, does not catch up with the requirement of domestic and international textile industry development of the situation far away.Wherein one of problem is to make yarn be able to the tensioner that normal winding becomes cheese big defective is arranged, so can not wind the special quality cheese.The bobbin-winding machine working process of prior art illustrates that as shown in Figure 1 the yarn 2 of cop 1 is wound into cheese 5 by tensioner to groove drum 4.Yarn 2 moves laterally in the groove of groove drum 4.Groove drum drives bobbin 5 rotations after by power transmission and is wound into cheese.Tensioner 3 among the figure is by last tension pulley 31, and pressurization disk 32 reaches tension pulley 33 formations down, and yarn 2 levels are by between the upper and lower tension pulley.The rotation of tension pulley is driven by the forward movement of yarn and the friction force between the tension pulley, its shortcoming is: (1) is a kind of passive rotation, therefore tension pulley rotation speed self is uncontrollable, and the rotation speed is influential to yarn tension, causes tension force de-stabilising effect cheese winding quality.(2) break when a certain ingot yarn, when needing knotting or replace tubes yarn, because some groove drums are collective's transmissions, can not shut down, connect yarn behind the head when reeling work once more, the starting linear velocity improves quickly, makes tension force generation non-uniform phenomenon.(3) adjustment of tension force realizes that by the weight that replacing adds compressing tablet tension adjustment can't realize the pulsation-free step-less adjustment, also makes the tension force instability.(4) as shown in Figure 1, the level trend during yarn 2 process tensioners 3 has caused the yarn in the workflow a plurality of bending points to occur, also is the defectiveness structural arrangement that yarn quality is had considerable influence.
Summary of the invention
The utility model is at the deficiency of above-mentioned prior art, tension-adjusting gear in a kind of bobbin-winding machine that spins has been proposed, its adopts the tension pulley of initiatively transmission and can make yarn obtain the control apparatus of a stable dynamic tension when reeling, to improve yarn quality.Realize that the above-mentioned purpose technical scheme is: the tension-adjusting gear in the spinning bobbin-winding machine, include two tension pulleies that pass for yarn, it is characterized in that: in two tension pulleies, the active tension dish is by the direct driven rotary of motor, another is the pressurization tension pulley, is connected an axle head unshakable in one's determination with power supply bonded assembly coil, and a torsion spring that is wound on the tension link is set, one of torsion spring goes out end and is connected on the stalk, and another goes out end and is connected on the tension link.Two left and right settings of tension pulley, yarn vertically passes through from two tension pulleies, and to being wound into cheese, the trend of yarn is continuous arc line from cop.
Advantage of the present utility model and effect: (1) tension pulley is by motor-driven, and rotating speed adjustable changes with the parameter that adapts in the winding process.When (2) yarn normally moves, coil blackout, stalk discharges, and the pressurization tension pulley is drawn close closure to the active tension dish under the effect of torsion spring restoring force, yarn is evenly pressurizeed; When yarn occur broken end have knotting the back or changed cop after, coil electricity overcomes torsion spring power, adhesive unshakable in one's determination drives the tension pulley disengaging of pressurizeing, and yarn is entered between two tension pulleies smoothly, the coil release normal winding of cutting off the power supply immediately, winding quality is good.(3) tension adjustment can use tension link (manual regulation turn-knob) to change the size of torsion spring power, is uniformly applied to the pressurization tension pulley.(4) whole piece yarn trend is continuous camber line, and no bending point makes the unwinding yarn that is wound up on the bobbin steady, cheese inherent quality height.
Description of drawings
Fig. 1 is the scheme drawing of prior art winding bobbin yarn;
Fig. 2 is the scheme drawing of the utility model winding bobbin yarn;
The sterogram of Fig. 3 tension link and torsion spring.
The specific embodiment
Referring to 2,3, cop 1, groove drum 4, bobbin 5 are identical with the prior art structural arrangement, but tensioner adopts the active tension dish 311 and the 312 left and right settings of pressurization tension pulley that is driven by synchronous AC motor 8, and yarn 2 passes through between the two.Pressurization tension pulley 312 is connected the left end of energising magnetic coil 6 stalks 7.An end that is wound on the torsion spring 9 on 10 of the tension links is fixed on the axle 7, and the other end is connected on the tension link 10.Coil 6 and tension link 10 all are fixed on the housing 11, and motor is fixed on the carriage 12, and housing 11 is connected as a single entity with carriage 12.The line of centers of tension pulley overlaps with stalk line of centers and motor 8 centre of grations, and the force direction of torsion spring 9 is a horizontal direction.Motor 8 can be chosen the AC24-36V ac synchronous motor, 375 rev/mins of rotating speeds, and power is less than 5W.Coil power 24V, power inhale and put time 0.5-1 second less than 20W, by the work of sensor automatic guidance, and spring torsion 0-100g, the pressurization tension pulley is inhaled moving apart from 3-5mm.