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 twist

Info

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
Application number
Other languages
Italian (it)
Inventor
Attilio Camozzi
Original Assignee
Marzoli Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marzoli Spa filed Critical Marzoli Spa
Priority to IT1999MI002550 priority Critical patent/IT1314267B1/en
Publication of ITMI992550A0 publication Critical patent/ITMI992550A0/en
Priority to EP00125487A priority patent/EP1106719A1/en
Priority to US09/716,458 priority patent/US6332244B1/en
Priority to CN00137376.5A priority patent/CN1280466C/en
Publication of ITMI992550A1 publication Critical patent/ITMI992550A1/en
Application granted granted Critical
Publication of IT1314267B1 publication Critical patent/IT1314267B1/en

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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.
IT1999MI002550 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 IT1314267B1 (en)

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)

Also Published As

Publication number Publication date
ITMI992550A0 (en) 1999-12-06
ITMI992550A1 (en) 2001-06-06

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