摘要:
The invention relates to a method and a device for winding nets (1) knitted out of fringes (2) and weft threads (3) over a winding width pre-determined in a winding region. According to said method, the fringes (2) of the knitted net are guided along spacers (5, 9, 14) in front of the winding region.
摘要:
A textile machine comprising a needle bar (6) carrying a plurality of needles (7), a guide bar (8) carrying a plurality of eye-pointed needles (9) and at least one carrier slide bar (10) carrying a plurality of threading tubes (11); the machine (1) further comprises a main shaft (12) for a synchronised movement of the bars (6, 7, 8) and manufacture of a textile product (5), a first feeding member (20) to feed at least one weft yarn (19) to said threading tubes (11), a second feeding member (40) to feed a plurality of warp yarns (18) to said eye-pointed needles (9) and a take-down member (60) to draw said textile product (5). The machine (1) is also provided with a control apparatus (80) comprising at least one first electromechanical actuator (30), operatively active on said first or second feeding members (20, 40) or on said take-down member (60) for movement of same and a controller (90) for regulation of at least said first actuator (30).
摘要:
Novel spatial warp knitted structures are knitted on a double needle bar Raschel machine or a spatial warp knitting machine formed by modifying a double needle bar Raschel machine. A basic spatial warp knitted structure including two warp knitted fabrics facing each other, uniting threads uniting the two warp knitted fabrics, and insert warp threads and/or insert weft threads inserted between and in parallel with the two warp knitted fabrics so as to intersect the uniting threads or to be interlaced with the initing threads. In pratical application, the basic spatial warp knitted structure is modified by properly interlacing the insert warp threads and/or the insert weft threads with the uniting threads and by forming the warp knitted fabrics in a specific warp knitted construction, into a spatial warp knitted band structure, a spatial warp knitted board structure having a hollow rectangular cross-section or a hollow segmental rectangular cross-section, a spatial warp knitted honeycomb structure, a spatial warp knitted honeycomb board structure, a spatial warp knitted skeleton structure comprising an assembly of cuboidal frames, or a spatial warp knitted structure having an I-shaped section, a Y-shaped section, or a T-shaped section.
摘要:
The invention addresses the problem of providing a warp knitted fabric manufacturing method capable of stably producing a warp knitted fabric wherein the longitudinal stretchability is 200%. To solve the problem, the invention is a warp knitted fabric manufacturing method that forms bands of a warp knitted structure with increased longitudinal stretchability by forming stitches with an elastic warp (2) while knitting in an elastic inserted yarn (3) in the warp direction and knitting in the weft (4) in the course direction, wherein: active feed means (30), which are obtained by placing a single follower roller (323) above two drive rollers (321, 322), are disposed on the respective paths of the warp (2) and the inserted yarn (3) to feed the warp (2) and the inserted yarn (3) to the warp knitting machine while increasing the respective elongation percentage. The active feed means (30) keep the respective feed rates of the warp (2) and the inserted yarn (3) constant while feeding same to the crochet warp knitting machine (40).
摘要:
Warp yarns (3) unwound from a supply unit (2) moves to reach a yarns-interlacing area (5), wherein a textile product (6) is formed. A dragging roller (8) advances the textile product (6) away from the yarns-interlacing area (5), keeping a selected target advancement speed Vtv. A braking action is achieved on the warp yarns (3) upstream of the dragging roller (8), to provide a supply traction force SF along the warp yarns (3). Monitoring of the supply traction force is achieved based on an instant value DT of a drag torque applied by the dragging roller (8). A target value SFtv of the supply traction force is kept during operation of the textile machine (1) by repeated control cycles, each comparing the instant value DT with a target value DTtv of the drag torque, corresponding to said target value SFtv of the supply traction force. The braking action is modulated to keep the supply traction force SF at the target value SFtv.