IT1314267B1 - Drafting and condensing device for roving of textiles fibers before transformation into yarn, includes condensing unit positioned downstream of drafting unit for condensing roving before delivering to twist - Google Patents
Drafting and condensing device for roving of textiles fibers before transformation into yarn, includes condensing unit positioned downstream of drafting unit for condensing roving before delivering to twistInfo
- Publication number
- IT1314267B1 IT1314267B1 ITMI992550A IT1314267B1 IT 1314267 B1 IT1314267 B1 IT 1314267B1 IT MI992550 A ITMI992550 A IT MI992550A IT 1314267 B1 IT1314267 B1 IT 1314267B1
- Authority
- IT
- Italy
- Prior art keywords
- roving
- condensing
- drafting
- unit
- twist
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title abstract 2
- 239000004753 textile Substances 0.000 title 1
- 230000009466 transformation Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000000750 progressive effect Effects 0.000 abstract 1
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A drafting and condensing device comprises a drafting unit (2) which confers a predetermined draft on a roving (1) and a condensing unit (40) by effect of suction on the fibers of the roving through a movable filtering surface. The condensing unit is located downstream of the drafting unit for condensing the roving before it is delivered to the twist. A drafting and condensing device, comprises a drafting unit having pairs of rollers (30, 31) and a belt drafting unit. The belts (3, 4) are driven to impart with a given speed of rotation which confers a progressive and predetermined draft to a roving. The device has a condensing unit positioned downstream of the drafting unit for condensing the roving before it is delivered to the twist. The condensing unit has a pair of lower and upper facing members. The lower member has a fixed tubing (41) connected to a suction source and provided with a suction opening disposed along the path and in the direction the drafting roving motion with the drafting unit. On the surface of the fixed tubing is an interposed filtering element (43) constituted by a movable member. The movable member moves in the same direction as the moving drafted roving and slot (42). The upper member is a presser roller (45) for driving the movable filtering member and pressing the roving between the roller and the movable member. The roller has rotation drive to extract the roving.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999MI002550 IT1314267B1 (en) | 1999-12-06 | 1999-12-06 | Drafting and condensing device for roving of textiles fibers before transformation into yarn, includes condensing unit positioned downstream of drafting unit for condensing roving before delivering to twist |
EP00125487A EP1106719A1 (en) | 1999-11-26 | 2000-11-21 | Method and apparatus for drafting and condensing a roving, particularly in a ring spinning frame |
US09/716,458 US6332244B1 (en) | 1999-11-26 | 2000-11-21 | Method and apparatus for drafting and condensing a roving, particularly an a ring spinning frame |
CN00137376.5A CN1280466C (en) | 1999-11-26 | 2000-11-25 | Improved method and apparatus for drafting and rubbing roves in ring throstle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999MI002550 IT1314267B1 (en) | 1999-12-06 | 1999-12-06 | Drafting and condensing device for roving of textiles fibers before transformation into yarn, includes condensing unit positioned downstream of drafting unit for condensing roving before delivering to twist |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI992550A0 ITMI992550A0 (en) | 1999-12-06 |
ITMI992550A1 ITMI992550A1 (en) | 2001-06-06 |
IT1314267B1 true IT1314267B1 (en) | 2002-12-06 |
Family
ID=11384080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1999MI002550 IT1314267B1 (en) | 1999-11-26 | 1999-12-06 | Drafting and condensing device for roving of textiles fibers before transformation into yarn, includes condensing unit positioned downstream of drafting unit for condensing roving before delivering to twist |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1314267B1 (en) |
-
1999
- 1999-12-06 IT IT1999MI002550 patent/IT1314267B1/en active
Also Published As
Publication number | Publication date |
---|---|
ITMI992550A0 (en) | 1999-12-06 |
ITMI992550A1 (en) | 2001-06-06 |
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