We offer a wide range of Lappet Hooks. We are supplying Hard Chrome Plated and Nickle Plated Lappet Hooks. We can supply for LR G 5/1, LR- 6, LR- 9, Rieter, KTTM, Toyoda, DJ- 5, DJ- 50, RY- 5, Texmaco Zinser, etc Ring Frames from 1.5 mm hole to 5 mm hole size.
Mounted directly above each spindle is a lappet designed to lead the yarn centrally over the spindle axis as shown in the figure above.
- The lappet consists of a thread guide made of bent wire ‘o’, and a pivotable support arm ‘k’.
- The guide is adjustably mounted on the support arm to enable centering using the centering tool ‘S’, while the arm itself is secured to a lappet rail ‘r’which extends over the length of the machine.
- This rail, along with the lappets can be raised and lowered.
- During winding of a cop, the lappet rail performs the same sequence of movements as the ring rail, but with a shorter stroke, that is:
- Continual up and down movement during winding of the layers.
- Continual upward shift through a small distance in accordance with builder motion.
- As shown in figure, this movement guides ensures that differences in the balloon height caused by changes in the ring rail positions do not become too large.
- Otherwise, excessive tension variation in the yarn would produce corresponding negative effects on the ends down rates and the yarn characteristics.
- Thread guide must be centered from time to time using a setting device which is mounted temporarily on the spindle.
- Since the yarn path does not run through the middle of the guide, but on its inner edge, the point of the setting device must be directed towards the inner edge of the guide.
