271results about "Cam shedding mechanism" patented technology

The heald shafts of a power loom are driven by electric D.C. or A.C. motors which have a external rotor or an armature connected to the respective heald shaft through two articulated couplings, for example snap locks, and a push-pull rod. The motors receive control signals from a computerized controller for reversing the motion direction of the external rotor or armature. The stators of the motors are rigidly mounted on a fixed axis secured to the loom frame.

An electrical rotating apparatus for controlling a harness cord associated with the shed of a weaving loom which includes an actuator including a rotor and a stator. The rotor is formed of at least two permanent magnets which are mounted within a tube so as to be spaced axially with respect to one another and wherein a plurality of stator elements are also provided offset axially relative to an axis of rotation of the rotor such that each of the plurality of rotors corresponds with a separate one of the plurality of stators. The polarities of one or the other of the permanent magnets or the stator elements are offset angularly relative to the axis of rotation.

A novel rod linkage for driving a heddle shaft includes at least one strap (16), which for damping oscillation has a sandwich structure (37) oriented in the longitudinal direction (L) of the strap assembly (16). The sandwich structure includes at least one rigid element (27), extending in the longitudinal direction, which is joined to one end (17) of the strap assembly (16); a second rigid element (31), likewise extending essentially in the longitudinal direction, which is joined to the other end (19); and a two-dimensional damping element (34), again extending in the longitudinal direction, disposed between the first two. The element (34) exclusively effects the mechanical connection of the two parts (16a, 16b) of the strap assembly (16). Preferably, no additional connecting elements, such as rivets, screws, or other rigid connections, between the rigid elements (27, 31) are provided. Preferably, the rigid elements (27, 31) are embodied as wedges pointing in opposite directions, which thus define a wave resistance that varies in opposite directions in the longitudinal direction. This wave resistance brings about an intentional coupling misadaptation with respect to the oscillation transmission. The element (34) disposed between them damps the oscillations additionally, so that the strap assembly (16) transmits driving motions like a filter and destroys or absorbs interfering oscillations.

The present invention provides a heald-frame height adjusting apparatus to make it possible to overcome the problems by providing a heald-frame height adjusting apparatus that easily adjusts the height of a heald frame and that reduces manufacturing costs of a shedding device, and that does not allow the shedding device to easily malfunction and that is suitable for high-speed vertical movement of the heald frame. A heald-frame height adjusting apparatus used in a shedding device including a drive transmission mechanism which is provided in accordance with each heald frame, which connects a reciprocating driving device and a heald frame with each other, and which is capable of changing a supporting height of the corresponding heald frame. The heald-frame height adjusting apparatus includes engaging means and raising-lowering means, the engaging means being engageable with and disengageable from the heald frame and being engaged with the heald frame when the height of the heald frame is adjusted before starting an operation of a loom, the raising-lowering means being placed at a securing portion of the loom and moving the engaging means vertically with respect to the securing portion.

A method of forming a stator for an electrical actuator of a type which may be used in weaving looms and weaving systems wherein a stack of armature plates having two-spaced sections are initially wrapped with an electrically conductive wire to create two coils afterwhich the stack is folded to sever severable bridge elements of the stack and to form an armature to include a tubular housing for a rotor.

The invention relates to a crank rocker type electronic jacquard machine and belongs to the technical field of textile machinery. The crank rocker type electronic jacquard machine comprises a machine frame, a power input mechanism and a heald lifting mechanism, wherein the power input mechanism is arranged on the machine frame and is in transmission connection with a main shaft of a loom in a use state; the heald lifting mechanism is also arranged on the machine frame. The crank rocker type electronic jacquard machine is characterized by further comprising a cam speed changing mechanism, wherein the cam speed changing mechanism corresponds to a position between the power input mechanism and the heald lifting mechanism and is in transmission connection with the power input mechanism and the heald lifting mechanism simultaneously. According to the crank rocker type electronic jacquard machine, the equipment investment is reduced; the grade of fabrics is improved, and the fabrics are embodied with an ideal economic added value; the whole-set cost of the crank rocker type electronic jacquard machine is controlled in a reasonable range, and routine check and maintenance are facilitated; the running effect of the jacquard machine is ensured.

The invention discloses a portable semi-automatic Kesi-weaving machine device. The portable semi-automatic Kesi-weaving machine device comprises a frame, a warp-conveying device, a wefting device and a coiling device. A motor opening device is arranged between the warp-conveying device and the coiling device. A pattern-reflecting plate is further installed between the motor opening device and the coiling device. The position, where the right side of the pattern-reflecting plate protrudes out of the frame, is provided with a pattern-reflecting plate hand wheel. A weft-beating device is arranged between the wefting device and the coiling device. The portable semi-automatic Kesi-weaving machine device has following advantages: the portable semi-automatic Kesi-weaving machine device is conveniently carried and favorably used for modern teaching; transfer from factorization to small-sized home-based design is achieved; a conventional mode of drawing on warp yarns is discarded so that a weaving mode is further realized; by adoption of the method of the pattern-reflecting plate, the effect of not deforming a finished product is achieved; and the opening device is flat during opening operation so that bright light rays are realized for facilitating selecting wefts.

The invention relates to a velveteen air jet loom. The velveteen air jet loom comprises a machine frame, a numerical control velveteen let-off mechanism, a velveteen shaft let-off mechanism, a bottom shaft let-off mechanism, a warp stop mechanism, an opening mechanism, a beating-up mechanism, an air jet weft insertion mechanism, a reeling mechanism, a batching mechanism and an electric control box. The velveteen shaft let-off mechanism lets pile warp off through the numerical control velveteen let-off mechanism, lets ground warp off through the bottom shaft let-off mechanism, the warp are conveyed into the air jet weft insertion mechanism from the opening mechanism through the warp stop mechanism, the air jet weft insertion mechanism is driven by the beating-up mechanism to complete weaving of double-layer velveteen, and then the double-layer velveteen is conveyed to a double-layer cutting mechanism, cut apart, and reeled through the reeling mechanism so as to be conveyed to the batching mechanism for collection.

A shaft connecting device (18) that comprises a thrust rod (8) and a lateral support (4) that fit into each other with minimal transverse play. In addition, the shaft connecting device (18) comprises a clamping device (16) with a stop means (60, 60′, 66) and a fixation means (30, 30′), the latter connecting the lateral support (4) and the thrust rod (8) exclusively on their respective upper ends to each other. Any opening, closing and adjusting of the connections between the thrust rod (8) and the lateral support (4) is possible in a particularly simple and convenient manner. The lateral support (4) and the thrust rod (8) support each other, thus resulting in a high dynamic load-bearing capacity. The overall design is simple, clear and cost-effective.

The invention relates to a device for modulating a first rotational motion of an input shaft (2) to a second, different from the first, rotational motion of an output shaft (3) in textile machines, comprising:

• • a fixed complementary cam (1) provided with at least two cam profiles (1a, 1b);
  • at least one cam follower (5), which is linked to the input and the output shafts (2, 3) and which is provided with at least two contact rollers (6a, 6b), each following a different cam profile (1a, 1b), because of which the said cam followers (5) are performing a rocking motion,

wherein the said cam profiles (1a, 1b) are internal cam profiles.

The invention provides a cam mechanism, a loom and a method for decoupling the cams in relation to the cam followers of a cam mechanism. The cam mechanism for forming a shed on the loom comprising swing levers for driving a heald frame, wherein the swing levers are pivoting fixed on a same shaft and disposed with followers moving according to the cam of the mechanism. The shaft acts a translational motion along the back direction of the followers from the radial of the cam relatively to the the support structure of the mechanism, to decouple the cam and the followers. Therefor, The mechanism comprises at least a post for guide the shaft to translate along the back direction, wherein the post is fixed relatively to the support structure of the mechanism and is contained in a bearer of the shaft, and the bearer extends in a transverse direction relatively to a direct axis of the shaft.

In order to make a small space requirement, a low energy requirement and therefore an increased weaving frequency possible in a shedding apparatus, a spring drive is proposed which is connected to magnetically acting holding means. The holding means are capable of holding the heddle frame in an upper shed position and in a lower shed position counter to the spring force. Furthermore, the heddle frame is connected to a linear motor. A heddle movement can be initiated by said linear motor. According to the invention, the spring drive is configured as a tension/compression spring which is designed in such a way that, during operation of the heddle frame at the resonant frequency of the spring drive the greater part of the kinetic energy can be obtained from the spring drive.

The invention discloses a water-jet loom in a cross weaving mode. The water-jet loom comprises a stander, wherein an opening mechanism, a weft guide mechanism, a warp conveying mechanism and a rolling mechanism are arranged on the stander; the opening mechanism comprises a heald frame, a heald frame driving part for driving the heald frame to move up and down, a leno heald steel reed arranged on the heald frame, and a leno heald steel reed driving part for driving the leno heald steel reed to move in a reciprocating manner; the heald frame driving part comprises an open plate, an open connection rod, a rocker rod, a heald lifting shaft and a driving assembly for driving the open plate; the upper rod head of the open connection rod is connected with the open plate, and the lower rod head is connected with one end of the rocker rod; the other end of the rocker rod sleeves the shaft end of the heald lifting shaft; the open plate is eccentrically connected with the open connection rod; an included angle between the open connection rod and the rocker rod is 120 degrees; the heald frame driving part comprises a chain wheel assembly, a gear assembly, a connection rod assembly and an adjustment block assembly for adjusting the travel of the leno heald steel reed. The water-jet loom runs steadily, is high in precision and can meet the demand for high-speed opening of the water-jet loom.

The invention discloses a suspender opening mechanism and a plastic woven fabric water-jet loom with the suspender opening mechanism. The suspender opening mechanism comprises a transmission shaft, a cam, a rotor, a rotor shaft, a rotor arm lever, a swinging shaft, a connection rod mechanism, a shedding beam and a guiding plate, wherein one end of the transmission shaft is connected with a power device or a power transmission assembly, and the other end of the transmission shaft is connected with the cam; the rotor is mounted on the rotor shaft and is tightly pressed on the outer edge of the cam; the rotor shaft is connected with one end of the rotor arm lever and the other end of the rotor arm lever is fixedly arranged on the swinging shaft; the connection rod mechanism is used for driving the shedding beam to do reciprocating motion up and down; a shedding plate group is arranged at the lower part of one end of the shedding beam or one shedding plate group is arranged at the lower part of each of the two ends of the shedding beam; each shedding plate group at least comprises two shedding plates; and a suspender threading hole is formed in the lower end of each shedding plate. The water-jet loom disclosed by the invention can be used for weaving a woven fabric, and also can be used for weaving a suspender into the woven fabric, so that the procedures are saved and the production efficiency is improved.

The invention discloses a flat opening mechanism with a moving pair; the flat opening mechanism comprises a connecting rod mechanism with the moving pair as well as a pushing rod and swinging rod mechanism, wherein the pushing rod and swinging rod mechanism comprises a pull rod; two ends of the pull rod are respectively hinged with a first swinging rod and a second swinging rod; the first swinging rod and the second swinging rod are respectively hinged with a third swinging rod and a fourth swinging rod; the third swinging rod and the fourth swinging rod are respectively hinged with a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod are both hinged with a heald frame; and the pushing rod and swinging rod mechanism is connected with the connecting rod mechanism with the moving pair by the pull rod. According to the invention, in order to adapt to high rotation speed of 900-1000 rpm of the traditional air jet loom, the flat opening mechanism with the moving pair is designed from an angle of high speed of the loom; a cam opening mechanism is replaced with the connecting rod mechanism with the moving pair, so that the damages of other parts of the air jet loom are avoided when vibration sources such as a cam and a cam rotor are eliminated.

The invention relates to a Jacquard machine, comprising at least two knife grids (5, 6) moving up and down in opposition on either side of the Jacquard machine, the Jacquard machine comprising a single-sided drive (1) for driving at least one driving lever (2,3) which is provided for driving the motion of the knife grids (5, 6) on either side of the Jacquard machine, and one traversing rocking shaft (24) being provided to transmit the motion of the said driving lever (2 and 3 respectively) to the knife grids (5, 6) of one of the sides of the Jacquard machine.

The present invention discloses a ribbon loom transmission apparatus, which is provided with a base table group, wherein the outer edge position of the base table group is provided with a worm wheel box transmission group, a cam group and a cutter closing rocker arm group are arranged inside the base table group, and the worm rod of the worm wheel box transmission group is engaged with the worm wheel of the cam group so as to drive a cam sheet to bear against the cutter closing rocker arm group to drive a heald frame. According to the present invention, by engaging the eight-tooth molding worm rod with the worm wheel, the rotation speed of the cam shaft can match the improving of the rotation speed of the main shaft, such that the number of the interweaving action of the ribbon loom heald frame is increased so as to improve the ribbon productivity; and the cam sheet has the four-phase profile curve, such that the cam sheet operation jerky degree can be reduced so as to reduce the wear on the cam sheet, and the cam sheet jitter situation can be improved so as to further prolong the service lives of the heald frame group and the accessories.

The invention discloses a cam opening device suitable for various door widths, relates to textile equipment, and aims to solve the problem that cloth with different doors cannot be weaved. The cam opening device suitable for various door widths comprises a horizontal beam, a driving system, a driven system and a connecting rod, wherein the driving system comprises a box body, a cam group, a pendulum disc, a driving blade and an alternating current motor; the driven system comprises a movable base, a driven main shaft and a driven blade, wherein the movable base is provided with a lug, and thehorizontal beam is sequentially provided with a first notch, a second notch and a third notch which are clamped and matched with the lug in the length direction; the connecting rod comprises a left section and a right section, and a length adjusting piece is arranged between the left section and the right section. According to the cam opening device suitable for various door widths, the distance between the driving system and the driven system is adjusted, and the length of the connecting rod is correspondingly adjusted, so that the technical effect of adapting to different doors is achieved.