CN103320946A - Movable reed mechanism for numerical control towel machine - Google Patents

Abstract

The invention relates to a reed mechanism of a numerically controlled towel machine, which comprises a numerically controlled arc groove drive mechanism, a fixed stroke reciprocating mechanism and a cam rotating reed mechanism, and the fixed stroke reciprocating mechanism drives the sley foot in the numerically controlled arc groove drive mechanism. Under constraints, different hair heights can be achieved through the cam rotating live reed mechanism. The sley foot reciprocating movement time is sufficient, and there is no need for frequent positive and negative rotations at high speeds in an instant, and no need to return to the origin for each weft. The installation position of the servo motor is relatively fixed to the loom wall , greatly prolonging the life of CNC motors, reducing user costs, improving stability and making it easier to promote.

Description

CNC towel machine live reed mechanism

technical field

The invention relates to a fluffing and reed mechanism of a towel machine, in particular to a numerical control reed mechanism of a towel machine whose fluffing height can be adjusted by numerical control.

Background technique

Most of the middle and low-end towel machines at home and abroad that do not separate the weft beating and weft insertion still adopt the method of bumping the nozzle and the mechanical cam method controlled by the electromagnet. The disadvantage is that there are many wearing parts and difficult to maintain, and only fixed types can be woven. The wool is high, and various wool shapes cannot be woven, and most of them adopt spring return and cannot meet the needs of users. There are also some raising mechanisms that use the towel machine numerical control living reed mechanism obtained by the inventor with the invention patent No. 2009102171314. The defects of the bumping method and the mechanical cam raising method are eliminated, and the hair height can be controlled digitally, and various hair types can be changed. However, since the servo motor is installed on the sley and reciprocates with the sley during use, the motor is affected. The shock and vibration have great impact, which may easily cause damage to the motor connection and the motor. In order to prevent the reed from touching the heald frame when the reed is farthest from the weaving fell during weaving, the CNC motor must be at this point of each weft. Angle turns the rotating shaft to the origin, the CNC motor controls the reed opening movement time is short, the instantaneous speed is high, the work is too frequent, and the frequent positive and negative rotation greatly affects the life of the servo motor and the life of the transmission parts, bringing a large amount of maintenance and cost to the user. The cost. There is also the invention patent 201210559088 that the inventor applied for first. The CNC rotating cam controls the fulcrum chute groove fluffing mechanism, which controls the rotation of the eccentric link through the CNC servo motor to control the angle of the chute and then controls the fulcrum of the primary and secondary links and the linkage. The angle between the rods is used to control the position of the frontmost point of the beat-up point of the overall sley, which can only be applied to the fluffing of towel machines where the weft insertion mechanism and the beat-up mechanism move separately.

Contents of the invention

Aiming at the deficiencies in the prior art, the invention provides a digitally controlled towel machine live reed mechanism with simple and compact structure, safe and stable use as a whole, and long service life.

The technical scheme adopted in the present invention is: the reed mechanism of the numerically controlled towel machine, including a numerically controlled arc groove drive mechanism, a fixed-stroke reciprocating mechanism and a cam rotating reed mechanism, characterized in that: the numerically controlled arc groove drive mechanism includes a numerically controlled electric Box, origin signal acquisition mechanism, numerical control motor, deceleration eccentric transmission mechanism, arc groove and arc groove rotation fulcrum, the origin signal acquisition mechanism includes a signal source linked with an arc groove or a deceleration eccentric transmission mechanism and a signal The origin signal sensor corresponding to the source, the circular arc groove is installed on the main wallboard of the loom through the circular arc groove rotation fulcrum, the numerical control electric box controls the numerical control motor through the deceleration eccentric transmission mechanism to control the circular arc groove so that the rotation fulcrum around the circular arc groove is at In the rotating state of the main wall panel of the loom, there is a groove on the arc groove;

The fixed-stroke reciprocating mechanism includes a rotary crank, a beat-up link, a sley foot, a sley foot support shaft, and a main wallboard of the loom; The rotating crank is articulated, and the other end is articulated with the sley foot. The sley foot fulcrum rotates and is set on the loom. The center of the circle is rotatably supported on the main wallboard of the loom;

The cam rotating live reed mechanism includes a rotor, an active rotating tooth arm, a fulcrum, a passive rotating gear, a rotating shaft, a rotating eccentric cam, a hinged link, a reed opening lever, a reed opening lever fulcrum, a live sley and a steel reed, The active rotating tooth arm is provided with a rotor that rolls in the groove of the circular arc groove. The active rotating tooth arm is installed on the sley foot through the support shaft, and the rotating shaft is installed on the sley foot through the bearing rotation, and the rotating shaft is fixed on the The connection is provided with a passive rotating gear and more than one synchronously rotating eccentric cam. The active rotating gear arm is correspondingly meshed with the passive gear. The rotating eccentric cam is correspondingly connected to one end of the hinged link through the bearing, and the other end of the hinged link is articulated with one end of the reed opening lever. The reed opening lever is in a rotating state around the reed opening lever fulcrum arranged on the sley foot, and the other end of the reed opening lever is fixedly connected with the live sley, and the live sley is fixedly connected with a steel reed.

When the two ends of the beating-up link and the centers of the two hinge points of the rotary crank and the sley are on both sides of the rotation center of the rotary crank and form a line, the loom sley and the steel reed are the farthest from the loom fell, and this position is The position of the starting point of the fixed-stroke reciprocating mechanism, when the fixed-stroke reciprocating mechanism is at the starting position, the rotor in the groove is closest to the fulcrum center of the circular arc groove during the whole beating-up process.

The active rotating gear arm is controlled by the driven gear and the rotating shaft to rotate the center of the eccentric cam and the reed opening lever, the center of the hinge point of the connecting rod and the center of the rotating shaft are in line, and when the reed on the live sley in the beating-up direction is closest to the weaving fell is The starting position of the rotating eccentric cam, this position is the origin position of the cam rotating live reed mechanism, at this time the live sley and the reed are in the closed state; the active rotating gear arm rotor moves with the sley foot in the fixed stroke reciprocating mechanism to open The motion trajectory under the control of the groove at the weft front point determines the rotational movement range of the active rotating gear arm relative to the sley foot, thereby controlling the rotation angle of the rotating eccentric cam on the rotating shaft from the starting point, and then controlling the reed on the live sley. The amount of reed opening when weft.

When the fixed stroke reciprocating mechanism moves to the front end in the direction of the beating point, the cam rotation mechanism is at the origin position under the control of the rotor in the groove, and the origin signal acquisition mechanism feeds back to the numerical control electric box and controls the numerical control motor to stop. This position is the numerical control circle. The origin position of the arc groove drive mechanism, the CNC electric box controls the angle of motion of the CNC motor to control the rotation angle of the arc groove from the origin position, and then controls the movement of the reciprocating mechanism with a fixed stroke in the direction of the beating point through the rotor. The beating-up and reed-opening and reed-closing states of the live sley and the reed in the cam-rotating live-reed mechanism and the size of the reed-opening amount.

The numerical control motor, deceleration eccentric transmission mechanism, circular arc groove rotation fulcrum, rotating crank rotation fulcrum, and the center of the sley foot support shaft are relatively fixed on the loom wallboard. In the cam rotating live reed mechanism: the support shaft circle center, The center of the circle of the rotating shaft and the center of the fulcrum of the lever for opening the reed are relatively fixed on the sley foot.

In the present invention, the rotation of the numerical control motor is controlled by the numerical control electric box, and then the circular arc groove is controlled by the deceleration eccentric transmission mechanism to rotate around the circular arc groove on the wall panel of the loom. When the mouth moves, set the rotor motion track on the active rotating gear arm, and then control the rotation angle of the active rotating gear arm relative to the sley foot, and then further control the rotation angle of the driven rotating shaft of the driven gear, and finally through the synchronous rotation of the eccentric cam on the rotating shaft. The hinged link controls the rotation angle of the reed opening lever around the center of the fulcrum of the reed lever, causing the opening amount of the movable sley and reed fixedly connected at the other end of the reed opening lever when the loom is beating up. When the CNC arc groove drive mechanism is at the origin position, when the sley foot in the fixed-stroke reciprocating mechanism beats up weft, the arc of the rotor on the active rotating tooth arm in the cam rotating live reed mechanism moves under the action of the arc groove The line is on the circle with the center of the sley shaft as the circle, so the cam rotating reed mechanism is always at the origin position of the closed reed until the beating is completed; when the arc groove in the CNC arc groove driving mechanism rotates under the action of the CNC At a certain angle, when the sley foot in the fixed-stroke reciprocating mechanism returns to the starting point every time, the rotor coincides with the center of the circular arc groove rotation fulcrum, and the cam rotating live reed mechanism also returns or is at the original position. When the sley starts from the starting point When the position moves toward the weaving fell, the active rotating gear or the rotor on the gear arm drives the active rotating gear or the tooth arm to rotate a certain angle relative to the sley foot under the action of the arc groove, and then passes through the passive rotating gear, the rotating shaft, and the synchronous The eccentric cam, hinged link and reed opening lever control the beating-up and reed opening amount of the live sley and the reed, and then control the fluff height when the towel machine is weaving.

The numerical control motor of the present invention does not reciprocate with the sley foot, the movement time is sufficient, there is no need for high-speed instantaneous frequent forward and reverse rotation, and no need for each weft to return to the origin, and the installation position of the servo motor is relatively fixed with the loom wallboard, which greatly prolongs the life of the numerical control motor. It reduces user cost, improves stability and facilitates promotion.

Description of drawings

Fig. 1 is the structure schematic diagram of fixed-stroke reciprocating mechanism of the present invention;

Fig. 2 is the structure schematic diagram of numerical control arc groove driving mechanism of the present invention;

Fig. 3 is a structural schematic diagram of the cam rotary live reed mechanism of the present invention.

In the figure: rotary crank 1, beat-up link 2, sley foot 3, loom main wall panel 4, sley foot support shaft 5, numerical control motor 6, deceleration eccentric transmission mechanism 7, numerical control electric box 8, arc groove 9. Arc groove rotation fulcrum 10, slot 11, rotor 12, active rotation gear arm 13, fulcrum 14, passive rotation gear 15, rotation shaft 16, rotation eccentric cam 17, link 18, reed opening lever 19, reed opening Lever fulcrum 20, live sley 21, signal source 22, origin signal sensor 23, steel reed 24.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-3, the live reed mechanism of the CNC towel machine includes a rotary crank 1, a beat-up link 2, a sley foot 3, a sley foot support shaft 5, a numerical control motor 6, a deceleration eccentric transmission mechanism 7, and an arc groove 9 , arc groove rotation fulcrum 10, rotor 12, active rotation gear arm 13, fulcrum 14, passive rotation gear 15, rotation shaft 16, rotation eccentric cam 17, link 18, reed opening lever 19, reed opening lever fulcrum 20 , live sley 21, signal source 22, origin signal sensor 23 and digital control electric box 8. Rotary crank 1 is connected to power input on the main wall panel 4 of the loom, one end of the beating-up link 2 is hinged to the rotary crank 1, the other end is hinged to the sley foot 3, and the sley foot fulcrum 5 is rotatably arranged on the loom. The sley foot 3 and the sley foot support shaft 5 are fixedly connected in such a way that the rotary crank 1 is driven by the beating-up link 2 to rotate around the center of the sley foot support shaft 5 and supported on the main wallboard 4 of the loom; The arc groove rotation fulcrum 10 is installed on the main wallboard 4 of the loom, and the numerical control electric box 24 is connected to the numerical control motor 6 and the origin signal sensor 23 to control the numerical control motor 6 through the deceleration eccentric transmission mechanism 7 to control the rotation angle of the arc groove 9, so that the arc groove 9 It is in a state of rotating around the arc groove rotation fulcrum 10 on the main wallboard 4 of the loom. The signal source 22 is provided in linkage on the arc groove 9 or the deceleration eccentric transmission mechanism 7, and the corresponding signal source 22 is provided on the main wallboard 4 of the loom. The origin signal sensor 23, the origin signal sensor 23 is connected to the numerical control electric box 24, and the arc groove 9 is provided with an arc-shaped groove 11; the active rotating gear arm 13 is installed on the sley foot 3 through the rotation of the support shaft 14, and the rotating shaft 16 passes through the The bearing rotation is set on the sley foot 3, the rotating shaft 16 is fixedly connected with the passive rotating gear 15 and the synchronous rotating eccentric cam 17, the active rotating gear arm 13 is correspondingly meshed with the passive gear 15, and the synchronous rotating eccentric cam 17 is connected through the bearing respectively One end of the connecting rod 18 is articulated, the other end of the connecting rod 18 is movable and hinged with one end of the reed opening lever 19, the reed opening lever 19 is hinged to the reed opening lever pivot 20 connected to the sley foot 3, and the other end of the reed opening lever 19 is fixedly connected The live sley 21 is fixedly connected to the steel reed 24 on the live sley 21 .

Any synchronous beat-up of live reed and sley or relative rotational offset movement to produce different wool height beating-up by adopting the coincidence of the center of the groove with the above-mentioned similar structure with the center of the support shaft of the sley foot or offset limitation, is protected by the present invention. within the range.

Claims (5)

1. A novel digitally controlled towel machine live reed mechanism, comprising a numerically controlled arc groove drive mechanism, a fixed stroke reciprocating mechanism and a cam rotating reed mechanism, characterized in that: said numerically controlled arc groove drive mechanism includes a numerically controlled electric box, an origin Signal acquisition mechanism, numerical control motor, deceleration eccentric transmission mechanism, arc groove and arc groove rotation fulcrum, the origin signal acquisition mechanism includes a signal source linked with the arc groove or a deceleration eccentric transmission mechanism and corresponding to the signal source The origin signal sensor, the circular arc groove is installed on the main wallboard of the loom through the rotating fulcrum of the circular arc groove. In the rotating state of the wallboard, there is a groove on the arc groove; The fixed-stroke reciprocating mechanism includes a rotary crank, a beat-up link, a sley foot, a sley foot support shaft, and a main wallboard of the loom; The rotating crank is articulated, and the other end is articulated with the sley foot. The sley foot fulcrum rotates and is set on the loom. The center of the circle is rotatably supported on the main wallboard of the loom; The cam rotating live reed mechanism includes a rotor, an active rotating tooth arm, a fulcrum, a passive rotating gear, a rotating shaft, a rotating eccentric cam, a hinged link, a reed opening lever, a reed opening lever fulcrum, a live sley and a steel reed, The active rotating tooth arm is provided with a rotor that rolls in the groove of the circular arc groove. The active rotating tooth arm is installed on the sley foot through the support shaft, and the rotating shaft is installed on the sley foot through the bearing rotation, and the rotating shaft is fixed on the The connection is provided with a passive rotating gear and more than one synchronously rotating eccentric cam. The active rotating gear arm is correspondingly meshed with the passive gear. The rotating eccentric cam is correspondingly connected to one end of the hinged link through the bearing, and the other end of the hinged link is articulated with one end of the reed opening lever. The reed opening lever is in a rotating state around the reed opening lever fulcrum arranged on the sley foot, and the other end of the reed opening lever is fixedly connected with the live sley, and the live sley is fixedly connected with a steel reed. 2. The live reed mechanism of a digitally controlled towel machine according to claim 1, characterized in that: the two ends of the beating-up link and the centers of the two hinge points of the rotating crank and the sley respectively are on both sides of the rotating center of the rotating crank. In one line, the sley and reed of the loom are farthest away from the weaving mouth, and this position is the starting point of the fixed-stroke reciprocating mechanism. The arc groove pivot center is closest. 3. The live reed mechanism of a digitally controlled towel machine according to claim 2, characterized in that: the active rotating gear arm is controlled by the driven gear and the rotating shaft to rotate the center of the eccentric cam, the center of the hinge point of the reed opening lever and the connecting rod, and the rotating shaft When the center of the circle is in a line and the reed on the live sley in the beating-up direction is closest to the weaving fell, it is the starting point of the rotating eccentric cam, which is the origin of the cam rotating live reed mechanism. At this time, the live sley and the reed are in the closed reed position. state: the active rotating gear arm rotor moves with the fixed stroke reciprocating motion mechanism when the sley foot moves to the pre-beat-up point. Rotate the rotation angle of the eccentric cam from the starting position, and then control the reed opening amount when the reed on the live sley is beating up. 4. The live reed mechanism of a digitally controlled towel machine according to claim 3, characterized in that: when the fixed stroke reciprocating mechanism moves to the front end in the direction of the beating point, the cam rotation mechanism is at the origin position under the control of the rotor in the groove, The origin signal acquisition mechanism feeds back to the CNC electric box and controls the CNC motor to stop. This position is the origin position of the CNC arc groove drive mechanism. The CNC electric box controls the rotation angle of the arc groove from the origin position by controlling the movement angle of the CNC motor. And then through the rotor control, when the reciprocating mechanism with fixed stroke in the direction of the beating point moves to the front end, the beating open reed and closed reed state and the size of the reed opening amount of the live sley and the reed in the cam rotating reed mechanism. 5. The live reed mechanism of a digitally controlled towel machine according to claim 1, characterized in that: the numerically controlled motor, the deceleration eccentric transmission mechanism, the rotating fulcrum of the circular arc groove, the rotating fulcrum of the rotating crank, and the center of the sley foot support shaft of the loom The position on the wallboard is relatively fixed, and in the cam rotating live reed mechanism: the center of the fulcrum circle, the center of the circle of the rotating shaft, and the circle center of the fulcrum of the reed opening lever are relatively fixed on the sley foot.

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