Description
It's of the main parts of a spinning frame used to twist the fibers into yarn and to wrap the yarn around the bobbin in such a way that the size of the mill is usually expressed by the number of spindles also known as spindles and spindles.
Product Introduction
One of the main parts of spinning machine is a combination of slender rotating shaft supported by two points.
There are spindles on the roving, spinning and winding machines.
The roving spindle is a circular steel rod with a groove at the top to support and drive the spindle fins to rotate together, an oil cup at the bottom tip to support the spindle, and a spindle sleeve as the upper bearing of the spindle in the middle.
The spindle is composed of spindle bar, spindle disk, supporting part (commonly known as spindle bladder), spindle hook, spindle foot, brake and so on.
The number and speed of spindles have a direct impact on the production capacity of the corresponding process. In particular, the number of spinning spindles is traditionally used to represent the scale and production capacity of the spinning mill.
The quality of spindle is closely related to yarn quality, power consumption, environmental noise and labor productivity.
The Development History
Spindle is by spinning specially evolved, as early as the neolithic period, people use spinning yarn, artificial spinning specially, yarn spinning and added came and winding system of the western han dynasty on the special rod with iron spinning specially, rod diameter on fine under thick later, used in the spinning wheel spindle by hand has become the prototype of the modern spindle, it is two to support thin rod in the early 19th century, ring spinning machine spindle, the upper and lower bearings with sliding bearing, is not closed due to can't storage dustproof, need to go, every day and easy to stain and yarn machine elements later to improve the bearing and the bottom of the ingot enclosed within the shell, the spindle speed is 6000 RPM only about as the spindle speed and increased volume loading capacity, spindle structure is in continuous improvement in the early 20th century, Germany began manufacturing roller bearing spindle: radial load bearing use roller bearing, bearing called under the bottom of the ingot, bear the weight of the spindle, the rigid connection, the rigidity of spindle, spindle speed is 8000 ~ 12000 RPM in the 50 s and developed into the bottom of the ingot for elastomeric bearing spindle, said after the flexible spindle, spindle improvements have focused on the supporting structure of the research of spindle.
In order to improve the speed the 70 s has reached more than 18000 RPM high speed knitting spindle speed after noise, power consumption increased and the parts wear, hence become the research topic due to spinning material and the diversity of the species, along with the development of technology, type of the spindle is increasing, such as when using the electric spindle spinning viscose filament, cotton wool or polyester filament came line machine adopts times came spindle, issues of design and color lines on a hollow spindle, and so on.
Structure
Roving spindle length is about 1 meter, the oil cup bolsters and spindle sleeve bearing, materials for high quality high carbon steel, after heat treatment processing, has high manufacturing precision and enough rigidity and hardness of the main body of spinning spindle is spindle and the spindle disk, a combination of these into axisymmetrical spindle blade made of bearing steel, first turning or hot rolled into thin rod blank, after heat treatment, grinding device in the middle of the spindle blade bearing retainer and bottom spindle tip to have higher manufacture precision surface hardness and wear resistance of the microstructure of ingot rod upside to supporting bobbin, have to be very straight tough and resilientWharve assumes the bell and drum shape tight set in the middle of the spindle blade, made of cast iron or free cutting steel, is the transmission of spindle, the spindle tape or dragon belt transmission, bearing in it, can prevent the dust fly into bearing spindle foot is a complete set of spindle bearing, and storage of spindle hook to block wharve, prevent the spindle blade wharve was taken away when pulling bobbin bolsters or severe channeling dynamic brake brake spindles and bobbin for joint operations, cotton big package of chemical fiber yarn and came all needs to use.
The Supporting Form
spindle can be generally divided into: the upper bearing and the bottom of the spindle are both rigidly supported;The upper bearing and the bottom of the ingot are elastic bearing;The upper bearing and the bottom of the ingot are rigidly connected and supported by an elastic element.Bearing as rigid support, on the bottom of the ingot is the most widely used such as elastic support is bearing on class 4 supporting form, together with the bearing pressure distribution in ingot foot, or bearing directly on the pressure distribution in the ingot foot and bottom of the ingot separate structure, namely the bottom of the ingot and bearing separation, on the bottom of the ingot in the central tube assembly, borrow the elastic element combination within the ingot foot;Have a plenty of connection type structure, namely the bearing and spindle bottom elastic elements are connected into a whole through the support form the bottom of the ingot can radial run-out, upper and lower bearing in the center of the high-speed spindle rotation can be adjustable, keep normal contact with the bottom of the ingot ingot tip in the periphery of the bottom of the ingot with vibration absorbing device: combination sleeve or vibration absorbing coil spring, together with the bottom of the ingot immersed in lubricating oil, using reservoir viscous damping effect of vibration absorption, make the spindle at high speed is very smooth.
Connection Modes
The connection modes of bobbin and spindle are generally divided into four types: Plastic or wood bobbin in spindle pole, the spindle blade on the cone friction drive rotary bobbin and ingot, and the taper and the diameter of rod with parts of the both, considering there is enough friction torque and the insertion of bobbin is easy to operate, on this form is suitable for cotton spinning spindle blade with aluminum casing, paper plastic or aluminum alloy thin-walled bobbin sets on the aluminum casing, driven by the elastic support of bobbin, this structure is suitable for wool spinning cotton or polyester long silk spinning and the band gap of a side of bobbin borrow the key on the set in the wharve tenon driven rotary pin form, suitable for wire came machine bobbin by side tenon driven rotary spindle plate, suitable for polyester long silk spinningThe fit gap between the bottom bore and the spindle plate must be appropriate. If it is too large, the bobbin will bounce on the spindle plate during vibration, which will increase the vibration and significantly increase the noise and bearing load.
Requirements Of Folding Spinning Process For Spindle
Smooth operation, small vibration in a wide speed range;
Wear resistance, long service life;
Low power consumption;
Low noise;
The key of carrying capacity is to reduce vibration and wear. Any spindle will inevitably suffer from severe vibration and wear during rotation, which will lead to bobbin jump, break of yarn or improper forming, and accelerate wear of machine parts, especially in high-speed rotation.
Vibration
When the spindle's working speed is close to the natural frequency of spindle's natural vibration, resonance phenomenon will occur and there will be a great amplitude. At this time, the spindle speed is called the critical spindle speed spindle rod is a continuous elastomer. Theoretically, there are infinite natural frequencies, which are related to the mass distribution and stiffness of spindle rod.Complete set of the spindle (including spindle wharve and supporting components) is a complicated vibration system, there are also many natural frequency, therefore how order critical speed of spindle roving frame work speed is far less than the first order critical speed of spindle, if the spindle and the spindle wing dynamic balance, with the increase of spindle speed, the vibration will increase significantly to improve the spindle speed must be improved spindle roving frame and the structure of the flyer, improve the manufacturing quality of spinning spindle speed between the first and second order critical speed, over again after critical speed accelerate, spindle vibration things instead of betterCompared to two kinds of vibration characteristic of the spindle, the spindle vibration of elastic supporting performance more superior spinning spindle longitudinal vibration and the transverse vibration during high speed rotary longitudinal vibration is refers to the spindle and jumped up and down to move the horizontal vibration of bobbin commonly known as the spindle head, early to feel the degree of hemp hand to test at the top of the spindle, is now widely used photoelectric vibration, directly show the transverse vibration amplitude at the top of the spindle is actually three composite vibration phenomenon: natural vibration;Forced vibration;The natural vibration of self-excited vibration is caused by instantaneous external force, such as the impact of spindle belt joint, etc. Its vibration range value depends on the initial conditions, and the vibration frequency is the natural frequency, which will gradually decline and disappear.Forced vibration refers to the vibration of the spindle when it is subjected to periodic external forces, such as eccentric or bending of rotating parts of spindle rod and bobbin, or dynamic deformation of the bobbin at high speed. In this case, the vibration frequency is equal to the working speed of the spindle, and the vibration range value depends on the value of mass eccentricity and working speed.Self-excited vibration is aroused by the system itself, such as due to the bottom of the ingot in contact with the spindle blade of abnormal friction, or due to internal friction of the spindle wharve etc material, etc., this once the vibration excitation, will continue to exist will not go away, its vibration frequency is roughly equivalent to the natural frequencies of the spindle, swing value depends on the state of the structure of the vibration system
Wear And Tear
Channeling move produces lateral contact sliding wear normal bearing retainer wear to lower accuracy, fit clearance increases, the oscillations if the bearing oil shortage, usually wear speed will be faster, so bearing retainer under certain load conditions, the spindle of wear depends on the spindle blade bearing spindle at the end of the material hardness, metallographic organization structure geometry precision and smooth finish.
Take Measures
In order to reduce the vibration of the high-speed spindle and wear, not only should pay attention to improve the quality of parts manufacturing, improve the method of heat treatment, etc., and studied the structure of the spindle, and carries on the optimization design of supporting elastic damping parameter, to control the critical speed, eliminate self-excited vibration to bear heavier load of the spindle, spindle tip geometry must be considered and the structure of the bottom of the ingot in addition, the merits of the bobbin had a great influence on the vibration of the spindle can be, especially after high-speed spindle is not only the effect of lubrication oil gear, and it is used to damping vibration free, and power consumption.
About Us
Our products cover cotton spindle series like D12, D32, ZD32, ZD41, ZD51 for cotton spinning spindles and D13, D14, D3213, ZD4314 for wool spinning as well as other spindles accessories, brands: JW, ZD and YD. ZD/YD51 series aluminum adapter type maximum speed is 22000 rpm.
In the meantime, we supply wool spinning spindle, chemical fiber spindle and twisting machine spindle. Also we can produce
The spindles as per customer's requirements.
| Model |
H |
LO |
L |
L1 |
| YD3201C-20.5 |
180 |
322.5 |
213.5 |
62.5 |
| YD3203C-20.5 |
205 |
353.5 |
244.5 |
62.5 |
Our Company Other Products:
Contact Us
Vicky Dong
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QINGDAO SEAVIN IMP. &EXP. CO., LTD.
ROOM 1906 BOHAI CENTER, 83 FUZHOU SOUTH ROAD, QINGDAO, CHINA
WhatsApp / Linkedin +8615588625939
Tex:+86 532 8091 5579
Fax: +86 532 8093 9299
http://seavin.en.made-in-china.com
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