WO2014094513A1 - Numerical control rotating cam control fulcrum chute fuzzing mechanism - Google Patents

Abstract

A numerical control rotating cam control fulcrum chute fuzzing mechanism consists of a numerical control fuzzing drive mechanism(3,4,5), a fixed stroke reciprocating mechanism(15,16) and a beating-up slay part(1,2) which is under limiting control by a beating-up drive link (11,13) through a numerical control fuzzing drive mechanism(3,4,5). An electric box(3) of the numerical control fuzzing drive mechanism(3,4,5) drives an eccentric rotating cam (6) through a numerical control motor(4) and a reducing mechanism(5) sequentially, and the eccentric rotating cam (6) carries out drive control on a chute seat with a chute(102) through a push-pull drive mechanism(10,101,9); one end of the beating-up drive link (11,13) is hinged with the fixed stroke reciprocating mechanism(15,16), and the other end of the beating-up drive link(11,13) is movably hinged to a slay sword(1), and the beating-up drive link(11,12) is provided with a sliding block or a rotor (14) which is limited in the chute(102) and slides or rolls along the direction of the chute(102). A conjugate cam group (15)or a crank (21) changes a linear stroke of the beating-up drive link(11,13) when the beating-up drive link(11,13) moves towards the slay sword(1) to a limiting point, so that the slay(2) is stabilized, and beating up can be adjusted to beat weft yarns at different positions of a fell; the mechanism is simple in structure, and is convenient to manufacture and use and can be adjusted to meet different fuzz height requirements at any time.

Description

 Numerical control rotary cam control fulcrum chute raising mechanism

 [0001] The present invention relates to a beating machine for beating and weaving of a towel loom, and more particularly to a vibrating mechanism for controlling a chute of a numerical control rotary cam that can weave different heights. Background technique

 [0002] The traditional toweling machine is divided into swaying and fluffing. The lifting of the bristles is controlled by the movable chest beam and the back beam, so that the woven mouth displacement is completed. The driving energy is high, the yarn friction is large, and the strength is strong. The requirements are high, and the front and rear are not easy to synchronize, and the production efficiency is low. The flicking is controlled by controlling the relative displacement of the steel boring point to control the height of each latitude to achieve fluffing. It has the advantages of small friction on the yarn and high production efficiency.

[0003] The applicant's previously applied patent number is 201020679593. 6 new type of numerical control swaying pilling conjugate cam beating mechanism, including conjugate cam group, pendulum shaft combination and other beating transmissions, except for two rotors on the pendulum shaft And a fixed-position positioning swing arm is arranged outside the first-stage linkage point of the beating unit and the one end of the adjustment link is spliced, and the adjustment link generates a fixed reciprocating pressing action with the beating arm, and then is decelerated by the numerical control motor. The machine, the eccentric cam and the eccentric link control the distance of the rotor on the other end of the adjustment link on the arc of the grooved swing arm from the pivot point of the grooved swing arm, thereby causing the grooved swing arm to generate different The pressure amplitude is controlled by the upper and lower positioning links of the non-rotating fulcrum end of the slotted swing arm to control the up and down lifting amplitude of the first and second transmission link suspension joints, thereby adjusting the angle between the first and second transmission links to control The closing and opening displacement of the weft knitting machine is driven by the numerical control eccentric cam mechanism, but its structure is complicated and complicated. The first and second level beating transmission link fulcrums are suspended, and the transmission control links are many, closed. Beat time It is difficult to find the right one. It is very difficult to install and match each other. The maintenance is also very difficult. The required space is also very large. It is unstable in actual use, easy to run with time, easy to produce gaps, difficult to produce, install and use. The cost of use is also high, and it is an unstable and immature structure. In addition, the patent publication number is CN1039454A, which uses a numerical control motor to control the worm to drive the worm gear teeth to control the chute associated with the worm gear teeth, and cooperates with the conjugate cam group to drive the hinge rod, the sley link and the pivot shaft. The driving sill is used to win the bristles. Although the gear and the worm drive simplify the driving structure, in actual use, the worm mounting direction is perpendicular to the conjugate camshaft mounting direction. When the worm drives the worm gear, the looms must be controlled by independent CNC motors on both sides. It is not easy to synchronize. Once the misalignment occurs, the deformation of the main squat can be difficult to repair, and the meshing of the teeth is not easy or beyond the stroke. The worm gear is sliding friction, easy to damage, and the material requirements are quite high, resulting in a squat The unstable amount of reciprocating motion is caused by inconsistent raising height, poor weaving precision, and cannot prevent mistakes, prevent mistakes, and prevent overtravel.

SUMMARY OF THE INVENTION

 [0005] In order to overcome the complexity of the transmission mechanism of the driving mechanism of the numerical control swaying and raising in the prior art, the squatting amount of the stern is unstable, the weaving precision is poor, and the like, the invention provides a simple structure, convenient manufacturing, and squatting The latitude stability, the anti-error and anti-missing anti-overtravel function, the CNC rotary cam control fulcrum chute raising mechanism which can effectively ensure the raising and weaving precision.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

A numerical control rotary cam control fulcrum chute raising mechanism, comprising a numerical control raising mechanism, a fixed stroke reciprocating mechanism, a beating transmission link and a beating weft seat portion, and a fixed stroke reciprocating mechanism movable hinged beating transmission link through numerical control raising The driving mechanism limits driving the beating seat portion, wherein the numerical control raising mechanism comprises a numerical control motor, a speed reducing mechanism, an eccentric rotating mechanism, a push-pull transmission mechanism, a chute, an electric box, an origin signal convex and a signal sensor, and the electric device The box drives the eccentric rotating cam through the numerical control motor and the speed reducing mechanism in turn, and the eccentric rotating cam drives the sliding slot seat through the push-pull transmission mechanism, and the sliding slot seat is provided with a center line passing through the center of the sliding slot; the beating transmission connecting rod includes a The second-stage transmission link, one end of the first-stage transmission link is hinged and fixed to the reciprocating mechanism, the other end is connected to the end of the second-stage transmission link through the link contact, and the other end of the second-stage transmission link is hinged to the beating seat. a lever on the leg of the crucible or fixedly coupled to the leg of the crucible; the first and second link hinge points are provided with a slider or a rotor on the pivot point, and the slider or the rotor is located in the chute in the direction of the chute Sliding or scrolling status.

 [0007] Further, the fixed-stroke reciprocating mechanism includes a conjugate cam group and a swing arm, and one end of the first-stage transmission link is hingedly coupled to the swing arm, and the two rotors on the swing arm are respectively matched with the conjugate. The two cams of the cam group rotate the swing arm in a fixed stroke around the axis of the swing arm. When the center of the swing arm rotor on the same side as the first and second stage links is closest to the center of the conjugate cam group, the center of the fulcrum of the first and second stage links coincides with the center of rotation of the chute seat.

[0008] Further, the fixed stroke reciprocating mechanism scheme 2 is a crank rotating mechanism, and one end of the first-stage transmission link is spliced on the crank shaft and reciprocated with the crank cam shaft. And when the crank joint point is farthest from the foot of the squat seat, the fulcrum of the first and second stage links coincides with the center of rotation of the fulcrum chute seat.

 [0009] Further, the eccentric rotating camshaft of the numerically controlled raising drive mechanism or the shaft synchronously running thereon is provided with an origin signal convex, and the signal sensor corresponding to the origin signal convex is connected to the electric box, and whether the size of the cymbal and the cymbal are The electric box control numerical control motor is driven by the speed reduction mechanism to drive the rotating cam to be determined from a certain angle of rotation of the origin.

 [0010] Further, a pair of rotating cams can be provided on both sides of the loom to control the fulcrum chute raising mechanism, and the beating weir seat portion, the conjugate cam and the raising eccentric cam stroke are the same and the synchronous operation is performed through the shaft coupling. The weft opening control is controlled by a set of numerical control motor and reducer after the two sides of the raised eccentric cam synchronous shaft are connected.

 [001 1 ] Further, the push-pull transmission mechanism of the numerical control raising drive mechanism can be directly driven by a link, or can be combined with a gear-reversing motion transmission.

 [001 2] Specifically, the movement of the conjugate cam group is rotated by its axis, and the two cam pieces of the conjugate cam group respectively correspond to the upper rotor and the lower rotor of the swing arm, and the swing arm drives the first-stage transmission link to reciprocate in a fixed stroke. The moving state, or the crankshaft drives the first-stage transmission link to be in a fixed-stroke reciprocating state, and the numerical control motor drives the eccentric rotating cam to rotate eccentrically from the origin position by a certain angle, and the eccentric rotating cam drives the lower gear through the gear swing lever. The center of the circle rotates reciprocally within a certain angle, and the lower gear drives the upper gear to rotate around the center of the upper gear through the sliding groove of the center of the gear to reciprocate within a certain angle, and can also be directly pushed and pulled by the swing rod to rotate, when the fixed stroke reciprocating mechanism When the foot moves in the direction of the foot, the rotor or the slider of the first and second transmission link joints are restricted by the chute, and the angular displacement in the direction of the rotation of the chute in the chute changes the angle between the first and second transmission links. Shorten the displacement of the squatting foot, the overall transmission structure is simple, the parts are small, the manufacturing is convenient, and the eccentric rotating cam rotates eccentrically The stroke is fixed, it is impossible to damage the parts due to electrical or mechanical errors or excessive amounts, the beating of the seat is stable, and the weaving precision is high.

[001 3] The invention adopts an electric box controlled numerical control motor to control an eccentric rotating cam to rotate a certain angle through a speed reducer, and then controls a hinge point movement track of the first and second transmission links through a chute through a conjugate cam group or a crank. The linear stroke of the first and second transmission links moving to the pole position is changed, thereby realizing stable and adjustable beating of the squat, and the weft yarn is hit at different positions of the woven mouth, and the structure is simple, and the manufacturing is convenient. It can realize the adjustment of different hair height requirements at any time, and has the advantages of stable weaving, high precision, error prevention, error prevention, anti-overtravel and so on. DRAWINGS

 1 is a schematic structural view of a first embodiment of the present invention;

 Figure 2 is a schematic view of the beating structure of Figure 1;

 FIG. 3 is a schematic structural view of Embodiment 2 of the present invention.

[001 5] In the figure: 筘 seat foot 1, 筘 seat 2, electric box 3, CNC motor 4, reducer 5, eccentric rotating cam 6, signal projection 7, signal sensor 8, gear swing 9, lower gear 10 Upper gear 101, chute 102, primary drive link 11, hinge point 17, articulated joint 12, secondary drive link 13, rotor or slider 14, conjugate cam set 15, swing arm 16, crank axle 21 , crank joint 171, rotor 18, rotor 19, fulcrum fulcrum 20. detailed description

 [001 6] The present invention will be further described below in conjunction with the drawings and embodiments.

 [001 7] In the first embodiment shown in FIG. 1, the numerical control rotary cam control fulcrum chute raising mechanism includes an electric box 3, a numerical control motor 4, a reducer 5, an eccentric rotating cam 6, a signal convex 7, a signal sensor 8, a gear pendulum The rod 9, the lower gear 10, the upper gear 101, the chute 102, the primary transmission link 11, the hinge joint 12, the secondary transmission link 13, the slider 14, the conjugate cam group 15, and the swing arm 16. The squat foot 1 swings with the fulcrum fulcrum 20 as a fulcrum. The fulcrum foot fulcrum 20, the conjugate cam group 15, the swing arm 16, the upper gear 101, the lower gear 102, and the eccentric rotating cam 6 are all mounted on the loom frame in the form of rolling bearings, and the center distance is relatively fixed. . The electric box 3 drives the eccentric rotating cam 6 through the numerical control motor 4 and the speed reducer 5 in sequence, and the eccentric rotating cam 6 is provided with a signal protrusion 7 , and the electric box 3 is connected with a signal sensor 8 corresponding to the signal convex, and the eccentric rotating cam 6 is arranged by the gear The rod 9 is articulated at a point of the non-gear center of the lower part of the lower gear 10, the upper tooth of the lower gear 10 meshes with the lower tooth of the upper gear 101, and the upper gear 101 is provided with a chute 102 extending through its center, the first gear One end of the rod 11 is movably hinged to the hinge point 17 on the swing arm 16. The two rotors of the swing arm 16 are correspondingly fitted on the two cam plates of the conjugate cam group 15 so that the swing arm is in a fixed stroke reciprocating state, and the first stage transmission link 11 The other end is connected to the 13-end of the articulated secondary transmission link via the link contact 12, and the other end of the secondary transmission link 13 is movably hinged to the squat 1 of the squat beating portion or to the lever fixedly coupled with the squat foot. The link contact 12 is provided with a rotor or a slider 14, and the rotor or the slider 14 is limited to be in the sliding groove 102 to roll or slide in the direction of the chute, and the rotor 18 on the side of the hinge point 17 of the swing arm 16 moves to a total distance. When the center of the yoke cam group 15 is closest, the center of the first and second link hinge joints 12 coincides with the center of the upper gear 101 in the chute.

[001 8] FIG. 2 is a schematic view of the beating structure. The conjugate cam group 15 drives the swing arm 16 to rotate counterclockwise via the upper rotor 18, and the swing arm 16 drives the first-stage transmission link 11 to move toward the crucible foot. The motor 4 drives the eccentric rotating cam 6 to rotate, so that the gear swinging rod 9 drives the lower gear 10 to control the upper slot 101 to rotate clockwise 102, and when the hinged joint 12 moves in the sliding slot toward the squatting foot 1 to make one or two The cascading rod generates a certain angle, thereby controlling the squatting foot to hit the weft yarn to the left in different positions during the beating, realizing the raising and raising motion; the different rotation angle of the rotating cam 6 causes the upper gear 101 to slide the groove 102 Rotate different angles to control the angle between the first and second stage linkages.

[001 9] FIG. 3 shows a second embodiment of the numerical control rotary cam control fulcrum chute raising mechanism, wherein one end of the first stage transmission link 11 is connected to the crank shaft via the crank coupling point 171 to rotate with the crank shaft 21, one or two The lateral travel of the stage drive link is rotationally adjusted by the crankshaft 21, and the rest of the structure is the same as in the first embodiment.

Claims

1. A numerical control rotary cam control fulcrum chute raising mechanism, including a numerical control raising mechanism, a fixed stroke reciprocating mechanism, a beating transmission link and a beating weft seat portion, and a fixed stroke reciprocating mechanism movable hinged beating transmission link through a numerical control The raising drive mechanism limits the driving beater seat portion, wherein the numerical control raising mechanism comprises a numerical control motor, a speed reducing mechanism, an eccentric rotating mechanism, a push-pull transmission mechanism, a chute, an electric box, an origin signal convexity and a signal sensor, The electric box drives the eccentric rotating cam through the numerical control motor and the speed reducing mechanism in turn, and the eccentric rotating cam drives the sliding slot seat through the push-pull transmission mechanism, and the sliding slot seat is provided with a center line passing through the center of the sliding slot; the beating transmission connecting rod includes First and second-class transmission link, one end of the first-stage transmission link is hinged and fixed to the reciprocating mechanism, the other end is connected to the end of the second-stage transmission link through the link contact, and the other end of the second-stage transmission link is hinged to the beating seat. a part of the leg of the crucible or a lever that is fixedly coupled to the leg of the crucible; the first and second links are hinged to the pivot point A rotor or slider, the slider or rotor limit direction along the slide groove located in the chute as a sliding or rolling state.  2. The numerical control rotary cam control fulcrum chute raising mechanism according to claim 1, wherein the fixed-stroke reciprocating mechanism comprises a conjugate cam group and a swing arm, and one end of the first-stage transmission link is hingedly attached to the swing arm. The two rotors on the swing arm are respectively matched with the two cams of the conjugate cam group so that the swing arm rotates in a fixed stroke around the axis of the swing arm, and the swing arms of the first and second links are on the same side. When the center of the rotor is closest to the center of the conjugate cam group, the center of the fulcrum of the first and second stage links coincides with the center of rotation of the chute seat.  3. The numerical control rotary cam control fulcrum chute raising mechanism according to claim 1, wherein the fixed stroke reciprocating mechanism is a crank rotating mechanism, and one end of the first-stage transmission link is spliced to the crank shaft with the crank cam. The rotation of the shaft is in a reciprocating state. When the crank joint is farthest from the foot of the crucible, the pivot points of the first and second stages are coincident with the center of rotation of the fulcrum chute.  4. The numerical control rotary cam control fulcrum chute raising mechanism according to claim 1, wherein: the eccentric rotating cam shaft of the numerically controlled raising driving mechanism or the shaft synchronously running therewith is provided with an origin signal convex and an origin signal. The convex corresponding signal sensor is connected to the electric box so that the squat is opened and opened. The size of the cymbal is controlled by the electric box. The numerical control motor drives the rotating cam through the speed reduction mechanism to determine the state from the origin rotation angle.  5. The numerical control rotary cam control fulcrum chute raising mechanism according to claim 1, wherein: a rotating cam control fulcrum chute raising mechanism is arranged on both sides of the loom, and the beating squat portion is The yoke cam and the raising eccentric cam have the same stroke and the stern is in the synchronous operation control state by the shaft coupling, and the two sides of the eccentric rotating cam synchronous shaft are coupled and controlled by the numerical control motor and the speed reducer.  6. The numerical control rotary cam control fulcrum chute raising mechanism according to claim 1, wherein: the push-pull transmission mechanism of the numerical control raising drive mechanism is a link direct transmission mechanism, or a link-combined gear reversing motion transmission mechanism.