Wednesday, July 11, 2018

classification of loom

classification of loom  


Loom :   The device which is used to produce woven fabric is called loom,it is not a machine   


1)According to the lifting mechanism  
      a) Tappet loom
      b) Modern loom(cam)
    
     2.According to the shedding mechanism
      
     a)tappet shedding
    b) cam shedding 
     c) dobby shedding


   3) According with picking mechanism 
   
    a)shuttle b)rapier  c) airjet   d) multiphase    e)  projectile 



    4)  according to the dobby mechanism
   
     a)needle dobby 
      b) cam dobby


   5)according to the  spped
   
   a)low speed(upto 250) 
   b) modern speed (350-500 rpm)
    c) high speed.

   
   6)By naming of loom
    
   a)shuttle loom
   b)rapier loom
    c)airjet loom
   d)water jet loom 
   e)jacquard loom
   f)multiphase loom
   g) projectile loom


  
 7)In according with mounting 
  
   a) Harness mounting        b) Heald wire mounting 


8)shuttle device 
a) shuttle loom  b) shuttle less loom



9)Motion loom

* Primary motion
  a)  shedding   b) picking  c) beat up 

  * Secondary motion
   a)take up
                  i)positive   ii)negative 

   b) let-off
                i)positive    ii) negative 

   
   

   3) Tertiary motion
       a)warp stop motion
       b) weft stop motion 
      c)temple motion
      d)cramming motion(weft)
      e)center weft fork motion
     f)side weft fork motion 
     g)warp protector motion
     h)weft replenishment
     i)slow reed and fast reed motion .


    






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