Gripper weaving loom provided with a wear monitoring device of a gripper-opener (1), wherein said gripper-opener (1) causes the opening of gripping means (13) of a gripper (10) of the loom when said gripper (10) slides against a contact edge (3) of said gripper-opener (1) at the exit from the shed. The monitoring device includes at least one conductive wear sensor (4) embedded in the body of said gripper-opener (1), in the proximity of said contact edge (3), and an electric circuit (100) which causes the current to flow through said wear sensor (4), when said wear sensor (4) comes into contact with said gripper (10), following a complete wear of the contact edge (3) portion which covers said wear sensor (4).
09 - Scientific and electric apparatus and instruments
Goods & Services
Weaving looms; shuttleless looms; rapier looms, air jet
looms, projectile looms; mechanical and electro-mechanical
devices for weaving looms; weaving loom checking, cooling
and control devices [parts of weaving looms]; components,
spare parts and fittings for the above goods. Mechanical, optical, electrical, electromechanical,
electromagnetic, and electronic control devices for
monitoring, measuring, testing, signalling and executing
controls in weaving looms; wireless controllers to remotely
monitor and control the function and status of other
electrical, electronic, and mechanical devices or systems;
sensors, detectors, and monitoring instruments for weaving
looms; wear detecting systems for weaving looms components,
such as grippers, gripper straps, gripper drive wheels.
09 - Scientific and electric apparatus and instruments
Goods & Services
Weaving looms; shuttleless looms; rapier looms, air jet
looms, projectile looms; mechanical and electro-mechanical
devices for weaving looms; weaving loom checking, cooling
and control devices [parts of weaving looms]; components,
spare parts and fittings for the above goods. Mechanical, optical, electrical, electromechanical,
electromagnetic, and electronic control devices for
monitoring, measuring, testing, signalling and executing
controls in weaving looms; wireless controllers to remotely
monitor and control the function and status of other
electrical, electronic, and mechanical devices or systems;
sensors, detectors, and monitoring instruments for weaving
looms; wear detecting systems for weaving looms components,
such as grippers, gripper straps, gripper drive wheels.
4.
CONTROL METHOD OF A WEFT INSERTION SYSTEM OF A GRIPPER LOOM
Method for controlling the weft insertion system of a gripper loom wherein a carrying gripper and a drawing gripper are alternately driven, inside the shed formed between the warp threads, by a pair of toothed wheels (W) through corresponding flexible straps (B) bearing at one end said carrying gripper and said drawing gripper, respectively, wherein said straps (B) are meshed on said toothed wheels (W) by means of a series of slots longitudinally formed in the body of the straps (B), and they are kept adherent to a sector of said toothed wheels (W) by means of guide slides (S), said system operation being monitored by a central control unit (LCU) of the loom. The controlling method includes the steps of: a.continuously detecting the surface temperature of the straps (B) during the loom operation; b.calculating parameters which are representative of the loom operation on the basis of the surface temperature at rest (Ti) and of the surface temperature under friction (Tf) of the straps (B), of the difference between said temperatures (ΔΤ), and of their variations over time; c.comparing said parameters which are representative of the loom operation with respective predefined threshold values; and d.sending alert messages to the operator or command messages to the central control unit of the loom when the values of said two different group of parameters exceed said reference threshold values.
D03D 47/18 - Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick two weft inserters meeting at or near the middle of the shed and transferring the weft from one to the other
D03D 47/27 - Drive or guide mechanisms for weft inserting
Weaving looms; shuttleless looms; rapier looms, air jet
looms, projectile looms; mechanical and electro-mechanical
devices for weaving looms; heald frames for weaving looms;
components, spare parts and fittings for the above goods.
Weaving looms; shuttleless looms; rapier looms, air jet
looms, projectile looms; mechanical and electro-mechanical
devices for weaving looms; weaving loom checking and control
devices [parts of weaving looms]; components, spare parts
and fittings for the above goods.
Weaving looms; shuttleless looms; rapier looms, air jet
looms, projectile looms; mechanical and electro-mechanical
devices for weaving looms; weft thread handling devices;
weaving looms checking and control devices; components,
spare parts and fittings for the above goods.
(1) Mechanical and electromechanical devices being parts and attachments for weaving looms and weaving looms checking and control devices, namely, weft thread handling devices, weft-yarn selecting units, cam motion machines for weaving looms, dobbies, selvedge and false selvedge apparatus for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, flexible rapier straps, grippers for weaving looms and relevant wheels, straps and drives specially adapted to weaving machines, air nozzles Specially adapted to weaving machines, cutters for weaving machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions, structural components, spare component parts and component fittings for the above goods.
Power weaving looms; shuttleless automatic power weaving looms, namely, rapier weaving looms, air jet weaving looms, and projectile weaving looms; mechanical and electromechanical devices being parts and attachments for weaving looms, namely, weft thread handling devices, weft-yarn selecting units, cam motion machines for weaving looms, dobbies, selvedge and false selvedge apparatus for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, flexible rapier straps, grippers for weaving looms and relevant wheels, straps and drives specially adapted to weaving machines, air nozzles specially adapted to weaving machines, cutters for weaving machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions; structural components, spare component parts and component fittings for the above goods
(1) Mechanical and electromechanical devices being parts and attachments for weaving looms and weaving looms checking and control devices, namely, weft thread handling devices, weft-yarn selecting units, cam motion machines for weaving looms, dobbies, selvedge and false selvedge apparatus for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, flexible rapier straps, grippers for weaving looms and relevant wheels, straps and drives specially adapted to weaving machines, air nozzles Specially adapted to weaving machines, cutters for weaving machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions, and structural components, spare component parts and component fittings for the preceding goods.
Weaving looms; shuttleless automatic power weaving looms in the nature of rapier weaving looms, air jet weaving looms, projectile weaving looms; mechanical and electro-mechanical devices for weaving looms, namely, weft thread handling devices; weaving looms checking and control devices, namely, weft-yarn selecting units, cam motion machines for weaving looms, dobbies, selvedge and false selvedge apparatus for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, flexible rapier straps, grippers for weaving looms and relevant wheels, straps and drives, air nozzles, cutters for weaving machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions; structural components, spare parts and fittings for the above goods
14.
PROJECTILE LOOM HAVING A CONTINOUS PROJECTILE CIRCULATION, WITH IMPROVED PERFORMANCE
Weaving loom of the type in which the weft transport member into the shed, formed between the warp threads, consists of projectiles (P) in continuous circulation along a closed loop circulation circuit which comprises a rectilinear forward branch (A) positioned along the shed, a rectilinear return branch (R) and two, preferably semi-circular, connection branches or circulators (C) which join the forward and return branches at their opposite ends, and wherein said circulators (C) are provided with projectile (P) containment means apt to compensate the centrifugal force developed by the projectiles (P) along said circulators (C) and comprising a plurality of fixed magnets (4, 13) which are positioned in the vicinity of said circulators (C) and exert a centripetal attraction force on the projectiles (P) which move along said circulators (C).
D03D 47/24 - Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick by gripper or dummy shuttle
D03D 47/25 - Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick by gripper or dummy shuttle inserted from only one side of loom
D03D 47/27 - Drive or guide mechanisms for weft inserting
D03D 49/24 - Mechanisms for inserting shuttle in shed
D03D 49/44 - Mechanisms for inserting shuttle in shed whereby the shuttle is propelled by electric or magnetic means
15.
SYSTEM FOR QUICKLY COUPLING HEALD FRAMES TO THE RESPECTIVE ACTUATING TIE RODS IN A WEAVING LOOM
A system for quickly coupling heald frames (H) to the respective actuating tie rods (1) in a weaving loom, of the type in which said tie rods (1) are arranged in groups of adjacent tie rods which operate by lateral coupling, on a same connection area (3) of the heald frames (H) and in which each one of said tie rods (1) is provided with a semi-automatic push- coupling device (2) apt to be push-coupled to a respective heald frame connection (3). The system comprises one multiple lever support (5) apt to house all the active tie rods (la) of each one of said groups of tie rods in a pre-coupling position, in which pre-coupling position the coupling device (2a) of each active tie rod (1a) is laterally aligned to the respective heald frame connection (3) and is adjacent to the vertical insertion path of said heald frame (H) with a predetermined clearance (11). The multiple lever support (5) is apt to move said active tie rods (la) between: a. said pre-coupling position, and b. a coupling position, wherein the coupling devices (2) of all the active actuating tie rods (1) are engaged with the respective heald frame connections (3).
Control mechanism of the grippers in a shuttleless weaving loom, of the type comprising a slider (3) provided with reciprocating rectilinear movement, a variable-pitch worm screw (5) drawn by such slider (3) into a reciprocating rotary movement, a toothed gear (D) coaxial and integral with said variable-pitch worm screw (5), and perforated flexible straps (N) which engage on one end with the teeth of said gear and which control, with the opposite end, said grippers. The movement from said slider (3) to the variable-pitch worm screw (5) is transferred through a coupling comprising multiple pairs of opposite sliding blocks (P, 6), slidable on the opposite lateral surfaces of the threads of said variable-pitch worm screw (5), the sliding blocks (6) of each pair being integral to each other and with a common support pivoted idle on the slider (3) according to an axis (Z) orthogonal to the axis (H) of the variable-pitch worm screw (5).
09 - Scientific and electric apparatus and instruments
Goods & Services
Weaving looms; looms without shuttles; rapier looms, air jet
looms, projectile looms; mechanical devices, components,
spare parts and accessories for the aforesaid goods. Mechanical, optical, electrical, electromechanical,
electromagnetic and electronic control devices for
monitoring, measuring, testing, signalling and executing
controls liable to be used in weaving looms.
09 - Scientific and electric apparatus and instruments
Goods & Services
Weaving looms; weaving looms without shuttles; rapier weaving looms; air jet weaving looms; projectile weaving looms; mechanical devices, components, spare parts and accessories for the aforesaid goods, namely, structural parts and fittings for weaving looms, weft-yarn selecting units, cam motion machines for weaving looms, dobbies, selvedge and false selvedge apparatus for weaving looms, reeds, reed cleaning and brushing machines, healds, heald frames, flexible rapier tapes, grippers for weaving looms and relevant wheels, straps and drives, air nozzles, cutters for weaving machines, yarn feeders, weft feeders, yarn deflectors, warp stop motions, weft stop motions Mechanical, optical, electrical, electromechanical, electromagnetic and electronic control devices for monitoring, measuring, testing, signaling and executing controls used in weaving looms, namely, computer controls for the operation of weaving looms, electronic controllers for operating and controlling weaving looms, industrial automation controls for operating weaving looms
09 - Scientific and electric apparatus and instruments
Goods & Services
Weaving looms; Looms without shuttles; Rapier looms, air jet looms, projectile looms; Mechanical devices, components, spare parts and accessories for the aforesaid goods. Mechanical, optical, electrical, electromechanical, electromagnetic and electronic control devices for monitoring, measuring, testing, signalling and executing controls in weaving looms.
