1. The first is the force value sensor of the tensile machine, because the quality of the sensor determines the accuracy and stability of the testing machine. The sensors of the current tensile force machine on the market generally use S-type sensors for small force values ​​and wheels for vigorous values. For a radial sensor, the resistance strain gauge is generally used inside the sensor. If the precision of the strain gauge is not high or the glue used to fix the strain gauge is not good for aging or the sensor material is not good, it will affect the accuracy and service life of the sensor. The imported sensor used is the American Quanquan Force Sensor, a world-renowned sensor manufacturer. The sensor used by the Hengyi Instrument Company has high accuracy, good linearity, and very stable performance. It will not change for decades.
2. The second is the ball screw that drives the movement of the sensor, because if the screw has a gap, the future test data will directly respond to the maximum deformation and elongation after break of the test. At present, some of the screw rods on the market are T-shaped ordinary screw rods. In this case, the gap is relatively large, and the friction force is relatively large. The service life is short, and the screw rods used are high-precision, gapless balls from Germany. The screw rod has a surface hardening hardness of HRC58-62 and a service life of up to several decades. And to ensure that the accuracy remains unchanged.
3. Once again, it is the transmission system of the rally machine. At present, some of the rally machine transmission systems on the market use reducers and some use ordinary belts. The main drawbacks of these two transmission methods: the former requires regular lubrication, and the latter It cannot be guaranteed that the synchronization of the transmission will affect the test results. Hengyi Instrument Company's tensioning machine transmission system adopts full arc synchronous belt for speed reduction, which ensures the synchronization accuracy of the transmission, high transmission accuracy, high efficiency, smooth transmission, low noise, and long maintenance life without maintenance.
4. Once again, the power source (motor) of the rally machine is also called a motor. At present, some rally machines on the market use ordinary three-phase motors or variable frequency motors. Such motors are controlled by analog signals. The control response is slow, the positioning is not accurate, and the general adjustment If the speed range is narrow, there will be no high speed if there is high speed, or no high speed if there is low speed, and the speed control is inaccurate. The motor used by the Rally Machine of Hengyi Instruments Co., Ltd. is a Japanese Panasonic full digital AC servo motor. Wide range of speed regulation,
Up to 0.001-1000MM / MIN, accurate control positioning, fast response, can be added to full speed in 0.01 seconds, the motor can ensure accurate full-scale speed control, and long service life, up to several decades, without maintenance.
5. Finally, the measurement and control system (that is, software and hardware) of the rally machine. Most of the measurement and control systems of the rally machine on the market are controlled by 8-bit microcontrollers. The sampling rate is low and the anti-interference ability is poor. The other is AD conversion. If the number of digits of the AD converter is low resolution. Then the measurement will not be accurate.
Nylon Zipper(Coil Zipper, Polyester Zipper)
Nylon zipper is a zipper, nylon monofilament is wound around the center line formed by heating stamper.
According to the material zipper, zipper into three categories: Metal Zipper, resin zipper, nylon zipper. Metal zipper teeth is made of copper or aluminum row by row of teeth out of the machine, using polyester resin zipper teeth are plastic rice by color and by dye injection molding machine out of the row, and nylon zipper teeth are made of nylon monofilament by heat press winding mold centerline thereof. Qikai accessories Tips compared to metal zipper, resin zipper, nylon zipper low cost, high yield, high penetration characteristics.
Quality Introduction
Nylon zipper can be divided by species:
1, closed-end zipper
2, open-end zipper (about interpolation)
3, two closed-end zipper (X or O)
4, double open end zipper (about interpolation)
Features introduced
1. nylon zipper can be used in all kinds of occasions, but generally prefer to use on sportswear, shoes, bedding, luggage, tents.
2. Common slider is painting, sometimes using electroplating.
3. nylon zipper material is mainly polyester, the cost is relatively low, the market is currently more like a zipper.
Installation method
â‘ First prepare nylon zipper and zipper fabric needs to be filled
â‘¡ will need to install a zipper 1.5 cm wide seams first basting again, and then ironing the seam allowances apart. If you do not need to crack the whole are installed on the zipper, then do not install this period seam zipper parts used needle from going fine point, and the start and end positions have to use down the needle holder;
â‘¢ nylon zipper face down and centered seam allowance, using a hand sewing needle and parts of it basting fixed;
â‘£ fabric will turn positive, to sew on a sewing machine fitted with a zipper unilateral presser foot, down the right side of the presser foot needle, start from the opening to the right of nylon zipper, 0.7 cm seam allowance on the fabric in a press Ming line;
⑤ When you have finished one side of the suture, the seam preparation when the other side, look at the bottom zipper bag iron location, if you can avoid it, you can turn 90 degrees, so that the needle across the top of the zipper to the other side began to suture . Jiangsu Qikai turning accessories recommendations should let the needle in the lowest position and then raise the presser foot, and then turn down the presser foot to continue sewing. When sewn to the top of the zipper teeth are not going to step on the electric motor, but turn the machine round, so the needle carefully over the nylon zipper teeth, to avoid needle;
â‘¥ If the package iron just at the turning position, then you will only press down the left foot needle, from the opening began to sew a bright line on the left. Qikai accessories Tips Note Crimping beginning and end do not forget to pin down. Finally, the suture removed sparse cloth on;
⑦ car for law skilled people who can not be basting, but for the novice, making the process more steps are still necessary, although to a little trouble, but it ensures satisfactory results.
Components Introduction
1. tape tape made of cotton yarn, chemical fiber or mixed fiber woven into a flexible belt for carrying chain zipper teeth and other components;
2. ribbed edge bead cloth belt used to carry the reinforcing part of metal or plastic fastener elements;
3. tendons rope rope rope middle finger ribbed by a multi-strand fiber composition;
4. refers to the element scoops metals, plastics and other materials were processed through a shaped teeth;
5. SMIC line filler cord is processed by multi-strand fiber cable made of nylon fastener chain for the production of rope;
6. The tooth chain chain refers to the teeth are arranged in a row;
7. The fastener stringer one side zipper chain chain teeth fixed in a cloth belt, said fastener stringer;
8. The chain belt on both sides of the zipper chain from engaging fastener stringer chain belt;
9. TDC top stop fixed to the fastener chain belt fastener chain pull timely limiting slider stopper slide fastener chain belt;
10. The next stop is fixed to the bottom stop tooth chain belt, limiting the slider when the slide fastener stringer chain teeth pulled, and so both sides of the fastener stringer can not be completely separated from the stopper;
11. The front and rear portions of the element does not take the lead tape, said the lead on Back & forth head tape zipper, the only side to take the lead before the next stop after the end of the lead;
12. The cannula (also called latches) pin separable fixed in the open end of the end of the zipper, for completely separate tubular member chain belt;
13. The outlet box retainer secured to the end of the zipper open end, entirely separate block member for chain belt;
14. The double open end stops at one kind of the cannula with two pin for the tubular member profile zipper on double open end;
15. Strengthening tape strengthened tape for enhanced intubation, sockets and tape bonding strength, improve the life of the fastener composite sheet;
16. The slider slider moving part and pull the chain engaging teeth;
17. The puller is a component of the pull-tab slider, which can be designed into a variety of geometric shapes and the slider body coupling or through middleware and the slider body coupling realize zipper closure;
18. The intermediate coupling member coupling the connecter of the slider body and the pull tab of the intermediate member;
*Related Products:two way separating zipper.
Nylon Zippers,Nylon Coil Zippers,Nylon Coil Zipper,Nylon Coil Zip,Nylon Zip
Shenzhen Yiyixing Zipper Manufacture Co.,Ltd , https://www.nicekeychain.com