CN1928181A

CN1928181A - Movement mechanism for yarn mouth on intarsia shuttle box

Info

Publication number: CN1928181A
Application number: CN 200610096387
Authority: CN
Inventors: 冯加林; 巫友群
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-22
Filing date: 2006-09-22
Publication date: 2007-03-14
Anticipated expiration: 2026-09-22
Also published as: CN100460579C

Abstract

The inventions relates to a yarn nozzle motion mechanism of intarsia shuttle box in flat knitting machine, comprising case, driving plate, limit swing block, fixed plate for yarn nozzle, outer cover plate and is characterized in that it contains cam, extension spring, buffer spring. Driving plate is slipped on the upper end of case outer and cam, limit swing block are articulated on the case outer under the driving plate from the top down orderly. Fixed plate for yarn nozzle is cut into limit swing block and two ends of extension spring are connected to fixed plate for yarn nozzle and limit swing block respectively. One end of two buffer spring is fixed to two sides of limit swing block and the other end is leaned against two sides of fixed plate for yarn nozzle in press. Driving plate is connected to cam, which is connected to limit swing block and fixed plate for yarn nozzle in driving style. Outer cover plate is connected to the outer of case. The merit is that it makes loom speed and weaving efficiency increase that small driving gap, stable operation, because the rotary of limit swing block is accomplished by pinion-and-rack contacting and cam moving.

Description

Movement mechanism for yarn mouth on the applique shuttle box

Technical field

The present invention relates to braiding flat-bed machine, more particularly, relate to the movement mechanism for yarn mouth on the applique shuttle box in the braiding flat-bed machine.

Background technology

In braiding flat-bed machine, applique shuttle box is according to setting formula control yarn mouth carries out controlling organization from accurate line feeding to the knitting needle of needle-bar diverse location.During line feeding, the fixed head that connects the yarn mouth rotates, and it is the next that the yarn mouth is in, and moves on the shuttle thick stick to the knitting needle line feeding of setting and with flat-knitting machine head.During not line feeding, then be locked on a certain position of shuttle thick stick.The locking or unclamp of applique shuttle box on the shuttle thick stick is by the control of the retaining mechanism on the shuttle box, the yarn mouth turns to the next to the knitting needle line feeding, still turn to that upper to stop line feeding be by the yarn mouth controlling organization on shuttle box control, on the inboard that retaining mechanism and movement mechanism for yarn mouth generally place the applique shuttle box casing respectively and the outside (relative operator's one side is the outside, otherwise is inboard).This case applicant has successively proposed the design of applique shuttle box several times, for example " applique shuttle box on a kind of flat braiding machine " application for a patent for invention (application number is 2006200698122) that proposes on March 6th, 2006, " applique shuttle box " application for a patent for invention (application number is 2006200710209) that proposes on April 7th, 2006, in the technical scheme of these applications for a patent for invention, stir spacing centering block by its lower end when all comprising the driver plate move left and right, make it around the mode of rotating with the casing pin joint.There is bigger drive gap inevitably in this kind of drive, thereby can produce impact in the process of stirring, so that vibration and noise occur during work, the speed of service of whole loom can not be improved, and can only move under two retaining speed during general operate as normal.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, designing does not a kind ofly have impact, friction and operates steadily and make the movement mechanism for yarn mouth that the whole loom speed of service is fast, braid efficiency high energy improves, and it is realized by following technical scheme:

Comprise casing, driver plate, spacing centering block, yarn mouth fixed head and balustrade deching, it is characterized in that also comprising cam, extension spring and buffer spring, driver plate slips the upper end in the casing outside, cam, spacing centering block is hinged on the casing outside of driver plate below from top to bottom successively, yarn mouth fixed head is plugged on the spacing centering block, the extension spring two ends connect yarn mouth fixed head and spacing centering block respectively, one end of two buffer springs is separately fixed at the both sides of spacing centering block, its other end is pressed against the both sides of yarn mouth fixed head respectively, the driver plate cam that is in transmission connection, cam is in transmission connection respectively to limit and draws centering block and yarn mouth fixed head, balustrade deching to be connected on the casing outside.

Chute on the described spacing centering block is that mid portion is narrow to the gradually wide skewed slot of direction of both ends, and its gradient α is: 0 °＜α≤10 °.

The driver plate cam that is in transmission connection is meant, cam is provided with the partial gear of centres hinged with it, be provided with and the corresponding tooth bar of described partial gear in the driver plate lower end, driver plate comes driving cam by the engagement of its upper rack and partial gear, and it is rotated around the pin joint with casing.

Described cam drive connects spacing centering block and is meant, in spacing centering block upper end one groove is set, and cam places this groove, and the cam curved surface of cam by its both sides contacts closely with the side wall surface of described groove and be connected the spacing centering block of transmission, make its around with casing hinged center rotation.

Described cam drive connects yarn mouth fixed head and is meant, the outside and yarn mouth fixed head inner top side at spacing centering block are provided with chute and groove respectively, yarn mouth fixed head is plugged in the chute of spacing centering block, on the lateral surface of cam, connect two pins (II), this pin places the described groove of yarn mouth fixed head upper end, come transmission yarn mouth fixed head by the described groove cell wall of pin (II) conflict during cam rotation, it is moved up along chute relative limit centering block.

The cam that is in transmission connection of described driver plate also refers to; Pin (I) is set on the medial surface of cam, at the driver plate downside elongated slot is set, described pin (I) places described elongated slot, and driver plate makes it around rotating with the hinged center of casing by the relative slip driving cam of pin (I) and elongated slot.

The described casing outside is provided with chute, and the inboard of driver plate is provided with guiding projection, and described guiding projection places chute and slides along chute.

The invention has the beneficial effects as follows: the rotation of spacing centering block is to be realized by the engagement of rack-and-pinion and cam rotation, its drive gap is very little, there are not impact, friction, mechanism operates steadily, thereby can promote the speed of service of loom, may operate at third speed under the general work state, improved the horizontal volume efficient of loom.

Description of drawings

Fig. 1 of the present invention one concrete enforcement body three-dimensional structure schematic diagram.

Fig. 2 another concrete enforcement body three-dimensional structure schematic diagram of the present invention.

Fig. 3 is the structural representation when the yarn mouth runs on upper left in the mechanism shown in Figure 1.

Fig. 4 be in the mechanism shown in Figure 1 the yarn mouth run on when the next structural representation this.

Fig. 5 is the structural representation when the yarn mouth runs on upper right in the mechanism shown in Figure 1.

Fig. 6 is the structural representation when the yarn mouth runs on upper left in the mechanism shown in Figure 2.

Fig. 7 be in the mechanism shown in Figure 2 the yarn mouth run on when the next structural representation this.

Fig. 8 is the structural representation when the yarn mouth runs on upper right in the mechanism shown in Figure 2.

Among the figure, I, II pin, the 1st, extension spring, the 2nd, leaf spring, the 10th, driver plate, the 11st, guiding projection, the 12nd, tooth bar, the 13rd, stopper slot, the 14th, stopper slot, the 15th, elongated slot, the 20th, casing, the 21st, chute, the 22nd, stopper slot, the 23rd, spacing guide pad, the 30th, cam, the 31st, partial gear, the 40th, spacing centering block, the 41st, groove, the 42nd, chute, the 49th, yarn mouth, the 50th, yarn mouth fixed head, the 51st, groove, the 60th, limited block, 61 stage clips, the 70th, balustrade deching.

The specific embodiment

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

In the following embodiments, be the outside with A among Fig. 1, Fig. 2 to the formed perspective plane of projecting direction, B is inboard to the formed perspective plane of projecting direction.

Contrast Fig. 1, the slipping of driver plate 10 and casing 20 is to realize that by the driver plate 10 inboard guiding projections that are provided with 11 and the chute 21 of casing arranged outside guiding projection 11 places chute 21, and driver plate 10 is slided along chute 21.

Driver plate 10 slides into end positions and must limit in chute 21, be provided with stopper slot 14 (seeing also Fig. 5) in the inboard of driver plate 10, at the spacing guide pad 23 of the arranged outside of casing 20 for this reason.Spacing guide pad 23 places in the stopper slot 14, make driver plate 10 about the end the mobile qualification that is subjected to spacing guide pad 23.In addition, the position-limiting unit on casing 20 outsides symmetry both sides also plays position-limiting action to driver plate 10.This position-limiting unit places the stopper slot 22 on symmetrical both sides, the casing outside, form by limited block 60 and stage clip 61, stage clip 61 two ends are against the bottom of stopper slot 22 and the lower end of limited block respectively, thereby make limited block 60 conflicts in the stopper slot 13 of the lower end of driver plate 10.

Cam 30, spacing centering block 40 are hinged on the casing outside of driver plate below from top to bottom successively, and yarn mouth fixed head 50 is plugged in the chute 42 on the spacing centering block.The both sides of spacing centering block 40 are equipped with buffer spring respectively, and this buffer spring is a leaf spring 2, and its end is fixed on the side of spacing centering block 40, and the other end is pressed against the both sides of yarn mouth fixed head 50.Chute 42 is narrower, the gradually wide skewed slots in two ends up and down of a mid portion, and its gradient α is: 0 °＜α≤10 °, this makes the yarn mouth fixed head 50 that is plugged on wherein can do more by a small margin rotation.Adopt the straight trough structure as chute 42, when yarn mouth fixed head 50 is flapped toward the endpoint location of both sides by the centre position, yarn mouth fixed head and the big inertia rotating torque that is connected yarn mouth formation thereon, can form spacing centering block pin joint N and impact, cause the wearing and tearing of this pin joint, thereby cause yarn mouth fixed head can to rock on both sides in intermediate position the time, the location is inaccurate.And chute 42 of the present invention is the grooves with very little gradient, make the yarn mouth on yarn mouth fixed head and its do the time spent being subjected to the inertia rotating torque, in chute 42, can do very small rotation (seeing also Fig. 3), and formation rotation potential energy, this rotation potential energy can be absorbed by the leaf spring 2 of chute 42 both sides, thereby reduces the stressed wearing and tearing at spacing centering block 40 pin joint N places.The two ends of extension spring 1 clasp joint respectively locate yarn mouth fixed head 50 on yarn mouth fixed head 50 and spacing centering block 40 on spacing centering block 40.

Transmission between driver plate 10 and the cam 30 can be designed to the engaged transmission of wheel and rack.Rabbet a partial gear 31 at the core of cam 30, the rotating shaft of this partial gear is hinged on the outside of casing 20, and cam 30 is rotated with this rotating shaft center.Be provided with and the corresponding tooth bar 12 of this partial gear in the driver plate lower end, during the driver plate move left and right, the engagement by tooth bar 12 and partial gear 31 comes driving cam 30, and its rotating shaft is rotated around the pin joint M with casing 20.

In spacing centering block 40 upper ends one groove 41 is set, cam 30 places this groove.30 liang of N-Side surfs of cam all the time with spacing centering block on the both sides cell wall of groove 41 contact closely and be connected, when cam 30 rotated, the sidewall by its cam curved surface pushing and pressing groove 41 made it around rotating with casing pin joint N thereby promote spacing centering block 40.

Connect two pin II at the outside of cam 30 close-fitting, the outside and yarn mouth fixed head inner top side at spacing centering block are provided with chute 42 and groove 51 respectively, yarn mouth fixed head is plugged in the chute 42 of spacing centering block, the two pin II that the cam outside connects place the groove 51 of yarn mouth fixed head inner top side, cam rotation, pin II rotates thereupon, when wherein a pin II touches the upside cell wall of groove 51, pushing and pressing yarn mouth fixed head makes it move up along chute 42 relative limit centering blocks 40.

Among the present invention, transmission between driver plate and the cam also can be designed to structure shown in Figure 2, on cam 30 medial surfaces, pin I is set, at the driver plate downside one elongated slot 15 is set, pin I places elongated slot 15, during driver plate 10 move left and right, come driving cam 30 with relative slip between elongated slot, make it around rotating with the hinged center of casing by pin I.

Mechanism of the present invention is not when starting working, the yarn mouth that yarn mouth fixed head 50 on it is connected is in upper, see also Fig. 3, at this moment, block tongue 100 moves down, moving down the moving driver plate 10 of the pusher that puts in place moves to left, the tooth bar 12 of driver plate 10 lower ends moves to left thereupon, by with the engagement of partial gear, partial gear 31 is rotated, thereby cam 30 is rotated, cam 30 contacts with groove 41 the close of both sides cell wall on the spacing pendulum fast 40 by the cam curved surface of its both sides, push against spacing centering block 40 around rotating with casing pin joint N, the yarn mouth turns to low level by a high position, sees also Fig. 4.At this moment, the yarn mouth begins corresponding knitting needle line feeding on needle-bar, and block tongue continued to promote driver plate 10 left lateral after line feeding finished.The same reason, tooth bar 12 drives partial gear 31 and rotates, and cam 30 rotates, and promotes spacing centering block 40 and rotates.At this moment, pin II on cam 30 outsides upwards rotates, the conflict upper side wall of groove 51 of yarn mouth fixed head 50 inboards, push against this sidewall, yarn mouth fixed head is moved up relatively along spacing centering block 40 upper hopper chutes 42, thereby the yarn mouth is slightly moved up a bit, see also Fig. 5, guarantee the upper height of yarn mouth.Pin II non-contravention is when groove 51 upper side walls, and the downward gradually return of yarn mouth fixed head turns to the next ending until yarn mouth fixed head 50 under the effect of extension spring 1.

As adopt mechanism shown in Figure 2, the move left and right of driver plate 10 is then come transmission by the pin I of cam 30 inboards, makes its rotation that is transformed into cam 30, and other structure in the mechanism is identical with structure shown in Figure 1, its motion state is seen Fig. 6～Fig. 8, and situation is identical to be repeated no more.

The drive gap of mechanism of the present invention is very little, moves very steadily, do not have to impact.Applique shuttle box friction on shuttle thick stick during work.Thereby under the general work state, loom can move third speed, has improved the operating efficiency of flat braiding machine greatly.

Claims

1, movement mechanism for yarn mouth on the applique shuttle box, comprise casing, driver plate, spacing centering block, yarn mouth fixed head and balustrade deching, it is characterized in that also comprising cam, extension spring and buffer spring, driver plate slips the upper end in the casing outside, cam, spacing centering block is hinged on the casing outside of driver plate below from top to bottom successively, yarn mouth fixed head is plugged in the chute on the spacing centering block, the extension spring two ends connect yarn mouth fixed head and spacing centering block respectively, one end of two buffer springs is separately fixed at the both sides of spacing centering block, its other end is pressed against the both sides of yarn mouth fixed head respectively, the driver plate cam that is in transmission connection, cam is in transmission connection respectively to limit and draws centering block and yarn mouth fixed head, balustrade deching to be connected on the casing outside.

2, the movement mechanism for yarn mouth on the applique shuttle box according to claim 1 is characterized in that the chute on the described spacing centering block is that mid portion is narrow to the gradually wide skewed slot of direction of both ends, and its gradient α is: 0 °＜α≤10 °.

3, the movement mechanism for yarn mouth on the applique shuttle box according to claim 2, it is characterized in that the described driver plate cam that is in transmission connection is meant, cam is provided with the partial gear of centres hinged with it, be provided with and the corresponding tooth bar of described partial gear in the driver plate lower end, driver plate comes driving cam by the engagement of its upper rack and partial gear, and it is rotated around the pin joint with casing.

4, the movement mechanism for yarn mouth on the applique shuttle box according to claim 3, it is characterized in that described cam drive connects spacing centering block and is meant, in spacing centering block upper end one groove is set, cam places this groove, the cam curved surface of cam by its both sides contacts closely with the side wall surface of described groove and is connected the spacing centering block of transmission, makes it around rotating with the hinged center of casing.

5, the movement mechanism for yarn mouth on the applique shuttle box according to claim 4, it is characterized in that described cam drive connects yarn mouth fixed head and is meant, the outside and yarn mouth fixed head inner top side at spacing centering block are provided with chute and groove respectively, yarn mouth fixed head is plugged in the chute of spacing centering block, on the lateral surface of cam, connect two pins (II), this pin places the described groove of yarn mouth fixed head upper end, come transmission yarn mouth fixed head by the described groove cell wall of pin (II) conflict during cam rotation, it is moved up along chute relative limit centering block.

6, the movement mechanism for yarn mouth on the applique shuttle box according to claim 2 is characterized in that the cam that is in transmission connection of described driver plate also refers to; Pin (I) is set on the medial surface of cam, at the driver plate downside elongated slot is set, described pin (I) places described elongated slot, and driver plate makes it around rotating with the hinged center of casing by the relative slip driving cam of pin (I) and elongated slot.

7, the movement mechanism for yarn mouth on the applique shuttle box according to claim 2 is characterized in that the described casing outside is provided with chute, and the inboard of driver plate is provided with guiding projection, and described guiding projection places chute and slides along chute.

8, the movement mechanism for yarn mouth on the applique shuttle box according to claim 2, it is characterized in that symmetrical both sides, the described casing outside are provided with position-limiting unit, place the stopper slot on box inside symmetry both sides, form by limited block and stage clip, stage clip compresses the lower end of limited block, and limited block is conflicted in the lower end of driver plate.