23.12.2014 Views

m - HKU Libraries

m - HKU Libraries

m - HKU Libraries

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Job Title: Roving Tender<br />

IfWffl:<br />

Level of Skill:<br />

Operative<br />

^«SSS»Sk«^n2<br />

Job Description:<br />

Operating and cleaning roving<br />

frames, piecing ends keeping roving ^ . _ v _<br />

frame supplied with slivers and help- -gs&jb-R^m<br />

ing with doffing. Sweeping floor JM^^-Wj"<br />

under and near speed frames.<br />

Job Skill Standards: :<br />

I. Trade Theory: :<br />

1. Know the purpose of producing<br />

roving and the main purpose and<br />

o<br />

working principle of the doffing<br />

mechanism of the speed frame.<br />

2. Know the dangerous parts and<br />

safety devices on a speed frame.<br />

2. ftSffi$WR±feSfcSffiR^£SSH<br />

3. Know the names of the main<br />

parts of a speed frame.<br />

3.<br />

4. Be aware of the importance of 4.<br />

keeping a speed frame in a clean<br />

condition.<br />

5. Know the reasons for stretched 5.<br />

or slack rovings and the effect of<br />

such a fault on yarn quality.<br />

6. Be aware of the importance of 6. _ __<br />

removing two-fold, dirty and ir- jj&^illl^<br />

regular roving from a bobbin.<br />

7. Be aware of the importance of 7.<br />

good and clean piecings in sliver<br />

and roving.<br />

m 0<br />

8. Be aware of the importance of 8. °<br />

not allowing wrong slivers to be<br />

fed to the speed frame.<br />

9. Be aware of the importance of 9.<br />

making the standard number of<br />

turns around the presser on the<br />

flyer.<br />

^mBpo<br />

^J&^c<br />

10. Understand the future difficulties 10. __<br />

which may arise from having too ;@©cbit^±-yRfei^nitT <<br />

much waste sliver or roving in ^TO¥^Mi«<br />

the mixing.<br />

11. Be aware of the importance of 11.<br />

removing roller laps with the<br />

hook parallel to the roller<br />

surface.<br />

70

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!