EP 0421170 A3 19911023 - SPINNING MACHINES WITH DUAL-APRON DRAFTING ARRANGEMENT
Title (en)
SPINNING MACHINES WITH DUAL-APRON DRAFTING ARRANGEMENT
Publication
Application
Priority
DE 3933165 A 19891004
Abstract (en)
[origin: EP0421170A2] Each dual-apron drafting arrangement of a spinning machine has a basic frame (11), in which are arranged in succession and at a distance from one another at least three drive cylinders (12, 13, 14, 15) which extend in the longitudinal direction of the machine and are driven at a speed increasing in the direction of run of the roving and each of which is assigned an individual pair of pressure rollers (18, 19, 20, 21) which is arranged thereabove and which is fastened freely rotatably to a respective load arm (17), pivotable upwards about a pivot axle (16) extending in the longitudinal direction of the machine and arranged behind the drive cylinders (12, 13, 14, 15), as seen in the yarn running direction, and which has an axis of rotation which extends parallel to the drive cylinders (11, 12, 13, 14, 15) and between which and the associated drive cylinder (12, 13, 14, 15) the roving (22) is guided through in a clamped manner. Each load arm (17) is assigned its own pneumatic piston/cylinder arrangement (23) which is arranged in the basic frame (11) and which can exert a specific pressure force on the load arm (17) in the region, where the pair of pressure rollers (18, 19, 20, 21) are located, via a mechanical tension member (24) which can be arranged either non-positively or positively between the load arm (17) and the piston/cylinder arrangement (23). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
D01H 5/525 (2013.01)
Citation (search report)
- [A] GB 2205112 A 19881130 - KOSTROMSKOE SP K BJURO TEXTILN
- [A] DE 3325422 A1 19840119 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [AD] DE 1560289 A1 19710318 - SAUVAGE JOSE MICHEL JULIEN
- [A] EP 0062185 A1 19821013 - RIETER AG MASCHF [CH]
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0421170 A2 19910410; EP 0421170 A3 19911023; CZ 477390 A3 19930317; DE 3933165 A1 19910411; JP H03124821 A 19910528
DOCDB simple family (application)
EP 90117710 A 19900914; CS 477390 A 19901001; DE 3933165 A 19891004; JP 26326290 A 19901002