摘要:
A circular weaving machine (1, 1′) has warp-tape guide elements (2) which are arranged around a circular reed (4, 4′) in order to supply a multiplicity of warp tapes (3). Weaving-shed forming devices (5) group the fed warp tapes into two warp-tape groups (10, 11) and impart thereon mutually opposed alternating movements, with the result that a weaving shed (9) is opened and closed between the two warp-tape groups. A weaving shuttle (12) moves on an orbit in the opened weaving shed (9) and, in the process, introduces a weft tape from a weft-tape bobbin (13) carried thereby into the weaving shed (9), with the result that a fabric is formed. The fabric is drawn off through a weaving ring (15). The weaving shuttle (12) keeps the bobbin axis (13a) of the weft-tape bobbin (13) at an angular position which deviates by at most +/−15°, preferably at most +/−10°, from a normal to a surface (9a, 9a′) which contains the geometric connecting lines between the warp-tape guide elements (2) and the weaving ring (15).
摘要:
In a cylindrical jacket woven into twill A, the direction of a twill line A formed by a warp 2 woven continuously over a weft 3 is substantially aligned with the direction of the central axis of the cylindrical jacket.
摘要:
A cloth beam arrangement for tubular felts or cloths in a weaving machine brings about feed in the weaving machine of the overfelt and the underfelt. The arrangement comprises an upper first beam, an intermediate second beam and a lower third beam. The underfelt runs against the first and the third beam and the overfelt runs against the second beam. The arrangement comprises driving members for the beams. The weaving machine includes a sley which during weaving acts against a weaving edge which has been established. The driving members drive the beams in a way which prevents mutual longitudinal displacement movements between the overfelt and the underfelt. It is thus ensured during weaving that the overfelt and underfelt edges remain completely overlapping one another at the weaving edge.
摘要:
A circular loom for the manufacture of tubular fabrics having an annular frame with an upper annular plate and a lower annular plate, both having bearing bores for vertically moving healds (heddles) guiding the warp threads of the hose to be manufactured. Said healds are arranged on the periphery of said frame and are mounted on at least one continuous circular path such that they may be individually vertically displaced. For this purpose, the lower ends of the healds arranged in each circular path have cam following rollers running on a rotary driven cam-like control ring. More than one set of healds (with corresponding rotary driven control rings) along additional circular paths may be used.
摘要:
A circular loom includes an endless raceway assembly and a shuttle sliding along the raceway assembly. The raceway assembly includes an upper ring plate, a lower ring plate, and a rod mechanism interposed between the upper and lower ring plates. The rod mechanism includes a row of outer guide rod units interconnecting the upper and lower ring plates, and a row of inner guide rod units aligned respectively and radially with the outer guide rod units so as to define a confining space therebetween. Each of the inner guide rod units includes an upper inner rod section secured to the upper ring plate, and a lower inner rod section secured to the lower ring plate so as to define an accommodating space between the upper and lower inner rod sections. The shuttle includes a shuttle body, a horizontal guide plate extending outwardly from the shuttle body through the accommodating spaces of the inner guide rod units, a vertical guide plate secured to a radial outer end of the horizontal guide plate, and two sliding bodies connected respectively to upper and lower portions of the vertical guide plate. The sliding body has two vertical side walls slidable respectively on the inner and outer guide rod units. The upper ring plate has a removable portion which allows the shuttle to be put into the confining spaces.
摘要:
A spherical cloth weaving machine in which radially stretched warp yarn and circumferentially running weft yarns are woven into a desired spherical shape, the machine being constructed with a mechanism for moving the warp yarns alternately by shuttle chucks which hold required numbers of the warp yarns at their outer peripheral part. A mechanism is provided for hooking the circumferential weft yarn and beating the same toward the center of the warp yarns for compact weaving. A weft yarn rotating mechanism causes the weft yarn to pass through the warp yarns which are being moved by the warp yarn moving mechanism. A mechanism is provided for maintaining the woven cloth in a spherical shape.
摘要:
In a circular loom having a machine frame and a lower and an upper circular-ring-shaped running race arranged in the machine frame for guiding a shuttle, the running rollers of the same are fitted in between inclined guiding surfaces of the upper and lower running races.To keep low wear of the running rollers and to ensure smooth running of the shuttle,(a) the guiding surfaces are inwardly inclined, i.e. formed to diverge to the middle axis of the circular loom,(b) the shuttles are journaled with running rollers having frustoconical running surfaces on the guiding surfaces,(c) for each of the running rollers, the tip of the cone forming the frustoconical running surfaces are on the middle axis of the circular loom and(d) the tip of the cone forming the frustoconical running surface of a running roller coincides with the tip of the imaginarily extended pertaining frustoconical guiding surface.
摘要:
A shuttle for a circular loom comprises trunnions supporting and turning together with a winding core of a tape package. One of the trunnions carries a brake disc co-operating with a brake shoe carried by a pivoted lever which is connected to a rocker shaft by a spring. An arm on the shaft is spring-biassed to rest on the tape unwound from the package. If the tape slackens or breaks, the arm and hence the shaft turn to pivot the lever and thereby apply more pressure between the brake shoe and rotating brake disc.
摘要:
A circular weaving machine in which longitudinal threads are arranged in radial groups is provided with a shed mechanism for creating shed openings in the radial groups so that a wrap thread can be passed through the openings to produce a circular weave. The shed mechanism includes operating threads connected with the longitudinal threads and arranged in corresponding groups. The operating threads of each group extend outwardly from the longitudinal threads and thence downwardly, and suspended from the depending portions of the operating threads are gripping balls. A draw bar positioned below the gripping balls carries a pick-up assembly and indexing assembly for incrementally advancing the pick-up assembly. The pick-up assembly moves in the direction in which the group of balls is arranged, and as it does it either engages or disengages the gripping balls of the group, depending on the direction of movement. When a selected number of gripping balls are engaged or disengaged, a drive assembly lowers the draw bar and this pulls the operating threads connected with the engaged gripping balls downwardly. The displaced operating threads in turn draw the longitudinal threads to which they are connected outwardly to create a shed opening in the group of longitudinal threads.
摘要:
A thick-walled, three-dimensionally shaped fabric is produced on a circular weaving machine with the aid of a rotating filling yarn inserter. The filling yarn inserter is adaptable for placing a filling yarn in an annular shed formed by the machine by moving through a path circling the vertical axis of the fabric.