The yarn guide of adjusting yarn tensionTechnical field
Utility model relates to a kind of textile machine, particularly relates to and twists with the fingers the improvement of kind equipment first twist yarn guide.
Background technology
Twist with the fingers in equipment at yarn, threads is by first twist and close, retwist forms strand.To treat and the single yarn bobbin grafting of closing is arranged on just on twist spindles, yarn is drawn from bobbin, through the thread-carrier be positioned at above first twist spindles, enter guide roller again, threads also guides conveying downwards by guide roller after closing, and is twisted form strand and be wound in and be socketed on the strand bobbin of retwist spindle by retwist spindle.
First twist spindles drives single yarn bobbin High Rotation Speed under the driving of transmission tengential belt, yarn on bobbin is extracted out from bobbin and is exported from guide roller through thread-carrier under the traction of guide roller, spindle often revolves and turns around, and yarn just increases a turn, thus realizes the twisting to this single yarn.The track that yarn is formed in rotary course is referred to as air ring, the size of air ring and form reflect the Tensity size suffered by yarn, the quality of Tensity size in process of twisting thread suffered by each single yarn to strand has a great impact, under unsuitable yarn tension, balloon shape is not be exactly too greatly too little, more easily produce the distortion of air ring and cause the difference of balloon shape between each ingot, be easy to produce further tension difference between each single yarn of synthesis strand, thus form the yarn defect of strand, cause economic loss.
Tensity size suffered by yarn in other words air ring size and form is subject to yam count usually, ingot speed, the impact of the many factors such as the distance between thread-carrier to yarn spool-holder tube, in these factors, yam count and ingot speed determined by product requirement or capacity requirements usually, and thread-carrier is fixedly mounted on yarn guide, it is also fixedly installed on equipment to the distance between yarn spool-holder tube, cannot be regulated, thus air ring size and form need to increase other parts to realize in other words to want the Tensity size of change suffered by yarn, as limited excessive air ring by anti-ballooning ring to ensure the relatively stable etc. of balloon shape, but such effect is unsatisfactory.
Utility model content
For the above-mentioned technical problem existing for twisting apparatus prior art, technical problem to be solved in the utility model is to provide a kind of yarn guide of adjusting yarn tension, it can not only guide yarn, and regulating action can be played to air ring size or form, thus yarn is made to have suitable tension force.
In order to solve the problems of the technologies described above, the yarn guide of a kind of adjusting yarn tension of the present utility model, comprise thread-carrier, thread-carrier mounting rod, cross bar, yarn guide column, column bearing, thread-carrier is arranged on thread-carrier mounting rod, thread-carrier mounting rod is bearing on cross bar, cross bar is arranged on yarn guide column, described yarn guide column is tubular structure, at yarn guide column pore internal fixtion, nut is installed, this nut and screw rod spin, screw rod is connected with transmission device, and transmission device is bearing on column bearing.
In said structure, because described yarn guide column is tubular structure, at yarn guide column pore internal fixtion, nut is installed, this nut and screw rod spin, then yarn guide column can relative to screw rod upper and lower displacement under the effect of bolt and nut, and screw rod is connected with transmission device, transmission device is bearing on column bearing, then screw rod rotates under the driving of transmission device, nut is made to do axially-movable on screw rod, also yarn guide column is just made to drive whole yarn guide to change height and position, the thread-carrier height that yarn guide is installed changes thereupon, that is, distance between thread-carrier to yarn spool-holder tube creates change, therefore, when twist spindles drives the bobbin on it to rotate originally, the air ring that the yarn that bobbin is drawn is formed also just can change, by regulating the height of yarn guide, regulating action is played to air ring size or form, thus make yarn have suitable tension force.
A kind of preferred embodiment of the present utility model, described transmission device is worm couple, worm screw in worm couple is connected with power transmission shaft, worm gear in worm couple is connected with screw rod, described worm couple is installed in transmission case body, and worm couple is bearing on column bearing by transmission case body.Adopt this embodiment, worm shaft and worm-wheel shaft are mutually vertical, can so that the layout of transfer motion power, and worm couple transmission speed ratio is comparatively large, and motor direct-drive can be adopted to make yarn guide height up and down position reposefully; The greasy dirt that the lubricating oil that transmission case body can stop transmission device may cause yarn, maintains the clean of board, is convenient to equipment maintenance, extends the service life of associated components.
Another kind of preferred embodiment of the present utility model, described transmission device is helical tooth wheel set or taper gear pair, driving gear in helical tooth wheel set or taper gear pair is connected with power transmission shaft, driven gear in helical tooth wheel set or taper gear pair is connected with screw rod, described helical tooth wheel set or taper gear pair are installed in transmission case body, and helical tooth wheel set or taper gear pair are bearing on column bearing by transmission case body.Adopt this embodiment, with employing worm and gear as compared with transmission device, the manufacture of helical gear or bevel gear more for convenience.
Another preferred embodiment of the present utility model, described yarn guide column has two at least, and each yarn guide column is to there being a transmission device, and the power transmission shaft connecting each transmission device is connected with motor-driven.Adopt this embodiment, each yarn guide column is driven by same power transmission shaft, and the height of whole yarn guide is easy to adjust, consistent.
The further preferred embodiment of the utility model, be provided with two nuts at yarn guide column pore internal fixtion, two nuts are rotatably connected on same screw rod.Adopt this embodiment, yarn guide column is connected by two nuts with between screw rod, and ensure that the connection rigidity of yarn guide column, whole yarn guide is more firm.
Accompanying drawing explanation
Structure Figure and the yarn guide of specific embodiment to the utility model adjusting yarn tension are described in further detail below.
Fig. 1 is the schematic cross section of a kind of detailed description of the invention of yarn guide of the utility model adjusting yarn tension;
Longitudinal schematic diagram that Fig. 2 is structure shown in Fig. 1;
Fig. 3 is for being elevated the structure cut-away view of running part in structure shown in Fig. 1.
In figure: 1-thread-carrier, 2-cross bar, 3-thread-carrier mounting rod, 4-column bearing, 5-yarn guide column, 6-screw rod, 7-transmission case body, 8-power transmission shaft, 9-nut, 10-transmission device.
Detailed description of the invention
In the yarn guide of the adjusting yarn tension shown in Fig. 1 to Fig. 3, thread-carrier 1 is arranged on thread-carrier mounting rod 3 by the length corresponding with the spacing between each spindle to spacing distance, thread-carrier mounting rod 3 has many rows, corresponding with the spindle row below it respectively, outermost one arrange thread-carrier mounting rod 3 with and to close twizzle position corresponding, each thread-carrier mounting rod 3 is bearing on cross bar 2, cross bar 2 is arranged on yarn guide column 5, yarn guide column 5 has two at least, each thread-carrier mounting rod 3 two ends are shelved on the cross bar 2 that is arranged on two yarn guide columns 5, the concrete quantity of yarn guide column 5 is according to yarn and twist with the fingers the number of spindles of equipment and determine.
Yarn guide column 5 is tubular structure, be bolted in yarn guide column 5 pore and two nuts 9 are installed, separated by a distance and the same screw rod 6 of these two nuts 9 spins, screw rod 6 is connected with transmission device 10, transmission device 10 is worm couple, worm screw in worm couple is connected with power transmission shaft 8, worm gear in worm couple is connected with screw rod 6, normally worm gear is arranged on screw rod 6, worm couple is installed in transmission case body 7, certainly, transmission device 10 also can be helical gear pair or taper gear pair, driving gear in helical tooth wheel set or taper gear pair is connected with power transmission shaft 8, driven gear in helical tooth wheel set or taper gear pair is connected with screw rod 6, helical tooth wheel set or taper gear pair are arranged in transmission case body 7, the same effect that can reach drive screw 6 rotary motion, transmission device 10 is bearing on column bearing 4 by transmission case body 7.Transmission device 10 quantity is corresponding with yarn guide column 5 quantity, and power transmission shaft 8 is coaxially connected by shaft coupling with each transmission device 10, and is connected with motor-driven.
Below some detailed description of the invention of the utility model are only listed, but the utility model is not limited in this, more improvement and conversion can also be made, transmission device 10 as being connected with screw rod 6 also can also be synchronous toothed belt transmission device, synchronizing jugged belt wheel is arranged on screw rod 6, and the synchronizing jugged belt wheel corresponding to each yarn guide column 5 passes through motor unified driving by synchronous cog belt; Also a nut 9 can be bolted to connection in yarn guide column 5 hole.And so on, as long as improvement done within the scope of the utility model general principle and conversion, all should be considered as falling in protection domain of the present utility model.