Development Of Multi-spindle Fully Automatic Shaking Machin

For many years,the traditional twisting machine used in the textile industry,tying and unwinding the yarn has been manually operated,and the workman has high labor intensity and low production efficiency.And as labor costs are getting higher and higher,all textile mills urgently need fully automatic twisting machines.Some domestic units are studying related technologies for automatic twisting.Luyuan Xinsen Textile Factory has developed a single-spindle fully automatic skeining machine,which can realize multiple functions such as fully automatic skeining,threading and unwinding,but its single-spindle structure greatly limits the production efficiency.Other factories,such as Shanghai Qimian,Shanghai No.1Textile Machinery,Handan Textile Machinery Factory,Shanghai Textile Hardware No.2 Factory,Shanghai Electric No.3 Factory and other units cooperated and trial-produced A731 type small twisting machine,can only use twisted wire.It is impossible to tie the yarn ends and tails of the skein together,and it is still necessary to manually find the yarn ends and yarn tails in the skein to assist the skein.Foreign countries have done a lot of research on the quality of the skein of the fully automatic skeining machine,and little research has been done on the automation of the skeining machine.Representing the international advanced level of today’s spinning machine,the Sincro MR and MRF series spinning machine of Italian Developed Company can be applied to any kind of short fiber yarn and textured filament.It can be achieved by changing the angle and length to obtain a tapered edge.The taper required for the hank and the special requirements of mercerized cotton dyeing.However,actions such as twisting and unwinding still need to be done manually.In order to solve the problem of low efficiency of manual skeining and unwinding in the skeining process of the textile industry,a multi-spindle fully automatic skeining machine has been specially developed.The equipment mainly completes two tasks in the development: structural design and control design.In terms of structural design,it is developed in accordance with functional modules.The equipment mainly includes a yarn frame module,an automatic threading module,a yarn guide module,a skeining and threading module,a knotting module and a yarn unwinding module.In the yarn frame module,in order to increase the scope of application of the equipment,an adjustable winding roller yarn frame is designed to facilitate automatic adjustment of the diameter of the yarn frame and automatic yarn unwinding;in the automatic spinning-in module,a back shape is designed The tensioner uses negative pressure to suck the yarn by increasing the enveloping angle of the yarn to achieve the purpose of holding the yarn,while ensuring that the yarn is easy to be sucked away when the air is cut off.The design of the tensioner greatly facilitates the automatic spinning up.The structural design of the module;in the yarn guide module,the traditional crank slider mechanism is used to realize the reciprocating movement to ensure the mesh quality of the skein forming;the upper and lower mold clamping and negative pressure suction are innovatively used in the skeining and threading module The design of this structure breaks through the key problem that the existing skeining machine cannot automatically bind the thread;in the knotting module,the knotting hook uses negative pressure to suck the yarn to complete the automatic knotting action;in the unwinding module Use the synchronous belt to push the hank directly to complete the unwinding.Each module has undergone many experiments and improvements.The twisting and threading module alone has been iterated 6 times,and the other modules have also undergone more or less two iterations.After the functional test of each module meets the requirements,it is integrated into one equipment,and a prototype is processed by drawing to test the effect of the system.In terms of control design,first complete the selection of the electrical actuators and detection components of each module,and then determine the upper computer and the lower computer circuit board and the communication mode between the upper and lower computers.Then use keil software to write the programs of the lower computer and the upper computer,and finally complete the debugging in the prototype to ensure that the equipment runs automatically.