CN103320947A - Novel numerical control movable reed mechanism for towel machine - Google Patents

Abstract

The invention relates to a novel numerical control movable reed mechanism for a towel machine. The novel numerical control movable reed mechanism comprises a numerical control arc groove driving mechanism, a fixed stroke reciprocating mechanism and a cam rotation movable reed mechanism. The fixed stroke reciprocating mechanism drives a lathe sword to fuzz of different heights through the cam rotation movable reed mechanism under the constraint of the numerical control arc groove driving mechanism, the reciprocating time of the lathe sword is sufficient, high-speed instantaneous frequent forward and reverse rotation is not needed, returning to the original point after each weft is not needed, a servo motor is fixed relative to a loom wallboard, the service life of a numerical control motor is greatly prolonged, using costs of users are reduced, the stability is improved, and popularization is facilitated.

Description

A New Reed Mechanism of Numerically Controlled Towel Machine

technical field

The invention relates to a fluffing and live reed mechanism of a towel machine, in particular to a new numerically controlled towel machine live reed mechanism 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 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 primary and secondary link fulcrums and link clamps. Controlling the position of the frontmost point of the beat-up point of the overall sley by using the angle can only be applied to high-speed towel machine fluffing in which the weft insertion mechanism and the weft beating mechanism move separately.

Contents of the invention

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

The technical solution adopted in the present invention is: a new type of digitally controlled towel machine reed mechanism, including a numerically controlled arc groove drive mechanism, a fixed-stroke reciprocating mechanism and a cam rotating reed mechanism, and its technical feature is that the numerically controlled arc groove drive mechanism It includes a numerical control electric box, an origin signal acquisition mechanism, a numerical control motor, a deceleration eccentric transmission mechanism, an arc groove and an arc groove rotation fulcrum, and the origin signal acquisition mechanism includes a signal source linked with an arc groove or a deceleration eccentric transmission mechanism And the origin signal sensor corresponding to the signal source, the circular arc groove is installed on the main wallboard of the loom through the rotating fulcrum of the circular arc groove, the numerical control electric box controls the numerical control motor through the deceleration eccentric transmission mechanism to control the circular arc groove to form a circular arc groove The rotating fulcrum rotates on the main wallboard of the loom. There is an arc-shaped chute on the arc groove. The center distance of the rotation fulcrum is a circular arc with a radius, and the center arc passes through the arc groove and the rotation fulcrum;

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 supporting shaft and a live sley, and the active rotating tooth The arm is rotatably installed on the sley foot through the fulcrum, and the rotating shaft is rotatably set on the sley foot through the bearing. The rotating shaft is fixedly connected with a passive rotating gear and a synchronously rotating eccentric cam. The rotating eccentric cam is connected to one end of the articulated link through the bearing respectively, and the other end of the articulated link is articulated with one end of the reed opening lever. The other end of the reed lever is fixedly connected to the live sley.

Further, the numerical control electric box controls the numerical control motor to control the arc groove to rotate around the fulcrum of the arc groove on the wall plate through the deceleration eccentric transmission mechanism until the center of the chute coincides with the center of the sley support shaft, the origin signal source triggers the origin The signal sensor 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 passes Control the movement track of the rotor when the active rotating gear arm moves from the origin of the fixed-stroke reciprocating mechanism to the beating position with the sley foot to drive the rotation angle of the active rotating gear arm relative to the sley foot, and then pass the passive rotation on the rotating shaft The gear and the rotating shaft drive the rotating eccentric cam to rotate and link the reed opening lever and the live sley mechanism to control the reed opening and closing states and the amount of reed opening when the towel loom is beating up.

Further, when the two ends of the beating-up link are respectively in line with the centers of the two hinge points of the rotary crank and the sley on both sides of the rotation center of the rotary crank and are in line, the reed of the loom is the farthest from the weaving fell, and this position is The position of the starting point of the reciprocating mechanism with a fixed stroke. At this time, the center of the rotor on the active rotating gear arm on the sley foot coincides with the center of the rotating fulcrum of the arc groove in the circular arc groove. In this state, the cam rotating live reed mechanism is also in its origin position.

Further, the active rotating gear arm rotates through the driven gear, the rotating shaft to control the rotation of the center of the eccentric cam and the reed opening lever, the center of the hinge point of the link and the center of the rotation axis are in line, and the live reed in the beating-up direction is closest to the cloth fell. The starting position of the eccentric cam, this position is the origin position of the cam rotating live reed mechanism, at this time the live sley is in the closed state; the active rotating gear arm rotor follows the beating motion of the sley foot in the reciprocating motion mechanism with a fixed stroke in a circular arc The motion track under the rolling control in the groove determines the range of rotation 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 position, and then controlling the rotation angle of the reed on the live sley when beating up Reed amount.

Still further, the positions of the numerical control motor, deceleration eccentric transmission mechanism, arc groove rotation fulcrum, rotation crank rotation fulcrum, and sley foot support shaft circle center are relatively fixed on the loom wallboard, and in the cam rotation live reed mechanism: The center of circle of the fulcrum, the center of the circle of the rotating shaft and the center of circle of the fulcrum of the lever for opening the reed are relatively fixed in position 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, chute 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, opening Reed lever fulcrum 20, live sley 21, signal source 22, origin signal sensor 23.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described

As shown in Fig. 1-3, a new type of reed mechanism of a 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, an arc Slot 9, arc groove rotation fulcrum 10, chute 11, rotor 12, active rotation gear arm 13, fulcrum 14, passive rotation gear 15, rotation shaft 16, rotation eccentric cam 17, linkage 18, reed opening lever 19, Reed opening lever fulcrum 20, live sley 21, signal source 22, origin signal sensor 23 and numerical 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. Origin signal sensor 23, origin signal sensor 23 connects numerical control electric box 24, is provided with the chute 11 of arc on the arc groove 9, and the arc of chute 11 is to be the center of circle with sley foot supporting shaft 5 circle centers, with sley The distance between the center of the foot support shaft 5 and the rotation fulcrum 10 of the arc groove is a circular arc with a radius; the active rotating gear arm 13 is rotated and installed on the sley foot 3 through the support shaft 14, and the rotating shaft 16 is installed on the sley foot 3 through bearing rotation Above, the rotating shaft 16 is fixedly connected with a passive rotating gear 15 and a synchronously rotating eccentric cam 17, the active rotating gear arm 13 is correspondingly meshed with the driven gear 15, and the synchronously rotating eccentric cam 17 is respectively connected to one end of the hinged link 18 via a bearing, The other end of the bar 18 is movably hinged with one end of the reed opening lever 19, and the reed opening lever 19 is hingedly connected to the reed opening lever fulcrum 20 connected on the sley foot 3, and the other end of the reed opening lever 19 is fixedly connected to the movable sley 21.

Any synchronous beat-up of live reed and sley or relative rotation and offset movement to produce different hair height beating-up is achieved by using the above-mentioned similar structure of the center of the chute to coincide with the center of the sley foot support shaft or offset limitation, all are protected by the present invention. within the range.

Claims (5)

1. new-type numerical control drop reed mechanism of towel machine, comprise numerical control circular arc groove driving mechanism, fixed journey system reciprocating mechanism and cam rotation drop reed mechanism, it is characterized in that: described numerical control circular arc groove driving mechanism comprises the numerical control electronic box, initial point signals collecting mechanism, numerical-control motor, the deceleration eccentric drive mechanism, arc groove and arc groove pivot point, described initial point signals collecting mechanism comprise with the arc groove interlock or with the signal source of deceleration eccentric drive mechanism interlock and the initial point signal transducer corresponding with signal source, described arc groove is installed on the loom main wall plate through the arc groove pivot point, numerical control electronic box control numerical-control motor is around arc groove pivot point rotation status on the loom main wall plate through deceleration eccentric drive mechanism control arc groove, arc groove is provided with the chute of arc, the center camber line of chute is take the slay fulcrum center of circle as the center of circle, take the circular arc of the slay fulcrum center of circle to arc groove pivot point centre-to-centre spacing as radius, described center camber line is through the arc groove pivot point;

Described fixed journey system reciprocator comprises rotary crank, the link rod that beats up, lay sword, lay sword fulcrum and loom main wall plate; Described rotary crank rotary setting is on the loom main wall plate, link rod one end hinging rotary crank beats up, the hinged lay sword of the other end, the rotation of lay sword fulcrum is located on the loom, and lay sword and lay sword fulcrum are fixedly connected and are by rotary crank and drive around lay sword fulcrum center of circle swivel bearing on the loom main wall plate through the link rod that beats up;

Described cam rotation drop reed mechanism comprises rotor, active rotation tooth arm, fulcrum, passive swing pinion, rotating shaft, the rotating eccentricity cam, hinged link rod, open the reed lever, open the reed lever fulcrum and the slay of living, active rotation tooth arm is provided with to slide and places the interior rotor of chute, active rotation tooth arm is installed on the lay sword through the fulcrum rotation, rotating shaft is located on the lay sword through the bearing rotation, be fixedly connected on the rotating shaft and be provided with passive swing pinion and synchronous rotary eccentric cam, the corresponding engagement of active rotation tooth arm driven gear, rotating eccentricity cam warp beam is honoured and should be connected to hinged link rod one end, the hinged link rod other end with open reed lever one end and be movably hinged, opening the reed lever, to be around the reed lever fulcrum of opening be located on the lay sword be center of circle rotation status, opens the reed lever other end slay alive that is fixedly connected.

2. described a kind of new-type numerical control drop reed mechanism of towel machine according to claim 1, it is characterized in that: described numerical control electronic box control numerical-control motor rotates to the camber line center of circle, chute center when overlapping with the slay fulcrum center of circle through deceleration eccentric drive mechanism control arc groove arc groove pivot point on the wallboard, initial point signal source triggering initial point signal transducer feeds back to the numerical control electronic box and controls numerical-control motor and stops, this position is the origin position of numerical control circular arc groove driving mechanism, the numerical control electronic box is by control numerical-control motor movement angle amount, the control arc groove is from the angle of origin position rotation, and then drive the angle that rotatablely moves of the relative lay sword of active rotation tooth arm by the movement locus of control rotor when active rotation tooth arm moves to stop position with the initial point of lay sword self-retaining stroke reciprocator, driving reed and closing the reed state and open the size of reed amount when driving by the passive swing pinion on the rotating shaft and rotating shaft that rotating eccentricity cam rotating gang is opened the reed lever and the slay mechanism controls terry cloth loom of living beats up again.

3. described a kind of new-type numerical control drop reed mechanism of towel machine according to claim 1, it is characterized in that: described beat up the link rod two ends respectively with two pin joint centers of circle of rotary crank and slay when rotary crank rotation center both sides and the being aligned, Loom reed from fell farthest, this position is the initial point position of fixed journey system reciprocator, the rotor center of circle that active rotation tooth arm is provided with on the lay sword at this moment overlaps with the arc groove pivot point center of circle in arc groove, and cam rotation drop reed mechanism also is in its origin position under this state.

4. described a kind of new-type numerical control drop reed mechanism of towel machine according to claim 1, it is characterized in that: described active rotation tooth arm is the start position of rotating eccentricity cam through driven gear, the rotating shaft control rotating eccentricity cam center of circle with when to open the reed lever nearest from fell with the link rod pin joint center of circle and rotating shaft center of circle being aligned and stop direction work reed, this position is the origin position of cam rotation drop reed mechanism, and the slay of living this moment is in the reed state that closes; Active rotation tooth arm rotor determines the amplitude that rotatablely moves of the relative lay sword of active rotation tooth arm with roll movement locus under the control of the beating motion of lay sword in the fixed journey system reciprocating mechanism in arc groove, thereby the anglec of rotation of rotating eccentricity cam from start position on the control rotating shaft, and then live the reed amount of opening when reed beats up on the slay of control.

5. described a kind of new-type numerical control drop reed mechanism of towel machine according to claim 1, it is characterized in that: described numerical-control motor, deceleration eccentric drive mechanism, arc groove pivot point, rotary crank pivot point, position on loom side, the lay sword fulcrum center of circle are relatively fixing, and in the described cam rotation drop reed mechanism: the fulcrum center of circle, the rotating shaft center of circle, position on lay sword, the center of circle of opening the reed lever fulcrum are relatively fixing.

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