CN102534920A - Single acting low impact high speed shedding mechanism of electronic jacquard machine, internally tangent driven by steel rope - Google Patents
Single acting low impact high speed shedding mechanism of electronic jacquard machine, internally tangent driven by steel rope Download PDFInfo
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- CN102534920A CN102534920A CN2011104531449A CN201110453144A CN102534920A CN 102534920 A CN102534920 A CN 102534920A CN 2011104531449 A CN2011104531449 A CN 2011104531449A CN 201110453144 A CN201110453144 A CN 201110453144A CN 102534920 A CN102534920 A CN 102534920A
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Abstract
The invention provides a single acting low impact high speed shedding mechanism of an electronic jacquard machine, internally tangent driven by a steel rope. The single acting low impact high speed shedding mechanism comprises a frame, a lower knife box and an upper assembly box. The frame is fixedly provided with a crank which is in circumferential rotary motion, and the frame is further provided with a front lifting wheel and a rear lifting wheel. The crank is connected with the front lifting wheel through a drive connecting rod. The front lifting wheel is connected with the rear lifting wheel through the steel rope. The lower knife box is connected with the front lifting wheel and the rear lifting wheel through a lower box connecting rod. The upper assembly box is connected with the front lifting wheel and rear lifting wheel through an upper box connecting rod. A guide rail is arranged between the lower knife box and the upper assembly box. The single acting low impact high speed shedding mechanism has the characteristics of stable operation and low noise and remarkably improves the reliability and service life of the electronic jacquard machine.
Description
Technical field
The present invention relates to a kind of single-lift electronic jacquard machine steel cable inscribe and drive the low impact high speed shedding mechanism.Belong to textile machine electronic jacquard machine technical field.
Background technology
Single-lift electronic jacquard machine be a kind of simple in structure, with low cost, weaving speed is not high (≤200 latitudes/minute), the main and matching used popular electronic jacquard machine of the great little Rapier looms of existing market storage.Design feature is the needle selection electromagnetic valve to be installed on transportable going up in the module case (abbreviation top box) go relatively with following girff (abbreviation nowel), constitutes the harness motion of jacquard, and the typical structure of single-lift electronic jacquard machine is as shown in Figure 1.Its operation principle is: the crank 1 ' of making circular motion with rotation speed n changes circular motion into through drive link 3 ' and gangbar 10 ' swing in the same way of preceding up-down rocking bar 4 ' and back up-down rocking bar 15 '; Change nowel 8 ' through slide block 6 ' into top box connecting rod 7 ' and by guide rail 5 ' again; The vertical motion up and down of top box 9 ', the i.e. harness motion of jacquard.When crank 1 ' was positioned at left end extreme position A point, top box 9 ' was nearest with nowel 8 ', is the comprehensive mean place in the harness motion, this moment all sheet hooks 12 ' all receive broaching tool 13 ' on push away the square hole that makes its upper end hook a little more than needle selection electromagnetic valve 11 '.If corresponding electromagnetic valve 11 ' energising; Then sheet hook 12 ' receive electromagnetic valve 11 ' suction and to the direction deflection of electromagnetic valve and form the space overlap of hook of square hole and the electromagnetic valve 11 ' of sheet hook 12 '; Along with the rotation of crank 1 ' and the decline of nowel 8 '; To be hung on by the sheet hook 12 ' that held on the hook of electromagnetic valve 11 ' and and move upward, form the top line of harness motion together with the harness cord 14 ' of correspondence with top box 9 '; Not selected all the other sheet hooks 12 ' will form the lower layer warp yarns of harness motion together with corresponding harness cord 14 ' is descended with nowel 8 ', and when crank 1 ' rotated to position B, rocking bar was rocked to another extreme position, obtained the maximum open of warp thread.Constantly change the arrangement regulation of upper and lower layer warp thread on request, can obtain the pattern fabric that needs.
The mechanical structure of single-lift electronic jacquard machine is compared with double-lift has only one group of broaching tool (nowel), and stroke has only 1/2 to 1/3 of Warp opening amount, so the moving member sliding velocity is low, simple in structure.In mechanism shown in Figure 1; For making nowel 8 ' and top box 9 ' when moving up and down, have less horizontal component and reducing active force to guideway; The pendulum angle of up-down rocking bar 4 ', back up-down rocking bar 15 ' application point D, E is in ° scope of relative trunnion axis ± 30 before choosing; This moment, the horizontal displacement of 2 of C, D had only 1/7-1/8 of its arm of force length (OD, OE), to up-down rocking bar 4 ' before solving, up-down rocking bar 15 ' in back is mayed I ask topic at the level string under the swing condition in the same way that good effect is arranged.But the operation practice shows; Under this design and arranging; This mechanism is very big in the needle selection impulsive force of combining at ordinary times; Noise is strong, this not only when impacting vibration and influence needle selection mechanism stability cause sporadic skips defective cloth, also cause the increase of mechanical breakdown and the decline of service life of a machine because of the existence of impulsive force makes mechanism have to bear extra dynamic loading.
No matter needle selection impacts single-lift or the double-lift electronic jacquard machine is all inevitable; Single-acting problem is particularly outstanding; Its reason mainly contains 2 points: the one, and single-lift jacquard has only one group of broaching tool; All sheet hooks 12 ' all load on the broaching tool 13 ' of nowel during needle selection, hung on electromagnetic valve 11 ' hook originally and upward then constitute the shock loading to nowel 8 ' with unexpected load mode with the sheet hook 12 ' of top box 9 ' motion, and double-lift makes load obtain shunting because of two groups of broaching tools are arranged; The 2nd, the top box 9 ' and the nowel 8 ' of single-lift jacquard form relative motion when needle selection; Impact velocity during its needle selection be the two speed vector with, under state shown in Figure 1, the application point C of preceding up-down rocking bar 4 ', back up-down rocking bar 15 ', D are in its hunting range of 60 °; To the decay of vertical speed seldom; Be the relative collision movement of accomplishing upper and lower case with fast state fully, and action time is very short, so impact shock is strong.Calculating be illustrated in loom 200 latitudes/minute weaving speed under, the relative velocity during upper and lower case needle selection is about 0.38 meter per second, impulsive force is about back 2.4 times of palm fibre hammer weight.
The content of invention
The object of the present invention is to provide a kind of single-lift electronic jacquard machine steel cable inscribe to drive the low impact high speed shedding mechanism, the present invention have operate steadily, noise is low, the characteristics that the reliability of machine and service life significantly improve.
For achieving the above object, technical scheme of the present invention is:
A kind of single-lift electronic jacquard machine steel cable inscribe drives the low impact high speed shedding mechanism, comprises frame, following girff and last module case; Be installed with on the described frame do the circumgyration campaign crank and frame on also be installed with before lifting wheel and back lifting wheel; Connect through drive link between described crank and the preceding lifting wheel; Connect through steel cable between preceding lifting wheel and the back lifting wheel; Described girff down links to each other with the back lifting wheel with preceding lifting wheel respectively through the nowel connecting rod, and last module case links to each other with the back lifting wheel with preceding lifting wheel through the top box connecting rod; Between following girff and the last module case guide rail is installed.
Lifting wheel drives through drive link and does oscillating motion before described, and back lifting wheel twines by the inscribe interleaved mode through one and the flexible steel cable that is fixed in self and preceding lifting wheel drives and realizes and the opposite swing of preceding lifting wheel rotation direction.
Described crosspoint with the lifting wheel before the connection of inscribe interleaved mode and the flexible steel cable of back lifting wheel is the space, and steel cable is not collided mutually.
On the lifting wheel, two free ends of steel cable were fixed with the adjusting bolt that is used for the steel cable tensioning before described middle part with the lifting wheel before the connection of inscribe interleaved mode and the flexible steel cable of back lifting wheel was fixed in pressing plate.
Lifting wheel all offers the guide groove that matches with cable diameter with the circumferential surface of back lifting wheel before described, and described preceding lifting wheel is arranged at its axial direction equidistant parallel respectively with the guide groove on the lifting wheel of back.
The angle of the driving action point D, E of lifting wheel and back lifting wheel its line DE and centre of gyration vertical line when combining flat needle selection is less than 25 ° before described, and the angle of while line DE and nowel connecting rod axis is less than 15 °.
The invention has the beneficial effects as follows: a kind of single-lift electronic jacquard machine steel cable inscribe of the present invention drive the low impact high speed shedding mechanism combine flat needle selection instantaneous on the relative velocity of module case and following girff be about 0.25 meter per second; And accomplish the time lengthening that impacts; Impulsive force drops to back about 1.4 times of palm fibre hammer weight, and buffering effect is remarkable.Secondly needle selection loading moment has only the about 1/4 of old structure, therefore moves briskly, steady, and noise reduces more than 5 decibels, and stress condition is greatly improved once more, and fault rate descends significantly, and the reliability and the service life of machine significantly improve.
Description of drawings
Fig. 1 is the structural representation of single-lift electronic jacquard machine;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing a nearly step being done in enforcement of the present invention describes in detail.
Embodiment 1
As shown in Figure 2, a kind of single-lift electronic jacquard machine steel cable inscribe of present embodiment drives the low impact high speed shedding mechanism, comprises frame 2, following girff 9 and last module case 10; Be installed with on the described frame 2 do the circumgyration campaign crank 1 and frame 2 on also be installed with before lifting wheel 4 and back lifting wheel 16; Connect through drive link 3 between described crank 1 and the preceding lifting wheel 4; Connect through steel cable 11 between preceding lifting wheel 4 and the back lifting wheel 16; Described girff 9 down links to each other with back lifting wheel 16 with preceding lifting wheel 4 respectively through nowel connecting rod 7, and last module case 10 links to each other with back lifting wheel 16 with preceding lifting wheel 4 through top box connecting rod 8; Between following girff 9 and the last module case 10 guide rail 6 is installed.Lifting wheel 4 drives through drive link 3 and does oscillating motion before described, and back lifting wheel 16 twines by the inscribe interleaved mode through one and the flexible steel cable 11 that is fixed in self and preceding lifting wheel 4 drives and realizes and the opposite swing of preceding lifting wheel 4 rotation directions.Described crosspoint with the lifting wheel 4 before the connection of inscribe interleaved mode and the flexible steel cable 11 of back lifting wheel 16 is the space, and steel cable is not collided mutually.On the lifting wheel 4, two free ends of steel cable 11 were fixed with the adjusting bolt 17 that is used for steel cable 11 tensionings before described middle part with the lifting wheel 4 before the connection of inscribe interleaved mode and the flexible steel cable 11 of back lifting wheel 16 was fixed in pressing plate 5.Lifting wheel 4 all offers the guide groove (not shown) that matches with steel cable 11 diameters with the circumferential surface of back lifting wheel 16 before described, and described preceding lifting wheel 4 is arranged at its axial direction equidistant parallel respectively with the guide groove on the lifting wheel 16 of back.The angle of the driving action point D of lifting wheel 4 and back lifting wheel 16 before described, E its line DE and centre of gyration vertical line when combining flat needle selection is less than 25 °, and the angle of while line DE and nowel connecting rod 7 axis is less than 15 °.
The difference of present embodiment mechanism and Fig. 1 structure is: change the translation up-down rocking bar among Fig. 1 (preceding up-down rocking bar 4 ', back up-down rocking bar 15 ') into guide groove preceding lifting wheel 4 and back lifting wheel 16; By preceding lifting wheel of steel cable 11 inscribe crossed linkage 4 and back lifting wheel 16, through nowel connecting rod 7 and top box connecting rod 8 and to convert preceding lifting wheel 4 and the swing of lifting wheel 16 afterwards to module case 10 and following girff 9 vertical mobile by the guide effect of guide rail 6 be the harness motion of jacquard.Present embodiment mechanism major advantage is following:
1, the needle selection impulsive force declines to a great extent.Under the flat needle selection condition of palm fibre shown in Figure 2; In the lift action point D of preceding lifting wheel 4 and back lifting wheel 16, E becomes 15 °-20 ° with the vertical axis of the centre of gyration the scope; At this moment; 40% of not enough its tangential velocity of the vertical component of D, E two spot speed has realized to the decay of girff 9 and last module case 10 speed of related movements down, again because O thus
2Angle between E and the nowel connecting rod 7 (EG) is very little, so this mechanism has bigger attenuation to the rate of climb of playing girff 9.Equally 200 latitudes/minute weaving condition under, new mechanism is combined the instantaneous relative velocity of going up module case 10 and play girff 9 of flat needle selection and is about 0.25 meter per second, and accomplishes the time lengthening that impacts, impulsive force drops to back brown about 1.4 times of hammering weight into shape, buffering effect is remarkable.
2, the needle selection loading moment of preceding lifting wheel 4 and back lifting wheel 16 is to descend by a larger margin.Because the application point D of lifting wheel 4 and back lifting wheel 16, E be near the small angle range that turns round the center of gravity vertical line (≤20 °) before needle selection when collision, thus D, 2 of E receive from the load of last module case 10 and following girff 9 to centre of gyration O
1,O
2The arm of force of point reduces, and by 60 millimeters of dropping to Fig. 2 mechanism of 138 millimeters of Fig. 1 mechanism, descends more than one times.Descend after 45% the factor combining impulsive force, the needle selection loading moment of new construction has only the about 1/4 of old structure, so the new mechanism operation is brisk, steady, and noise reduces more than 5 decibels, and stress condition is greatly improved, and fault rate descends significantly.
3, go up module case 10 and the stressed complete equipilibrium of following girff 9 levels, can ignore the active force of guide rail 6.Though the horizontal velocity component of the application point C of lifting wheel 4 and back lifting wheel 16, D is very big before combining when putting down needle selection; Near its tangential velocity; But because two lifting wheels (preceding lifting wheel 4 and back lifting wheel 16) have been adopted inscribe crossed linkage mode; Make the application point C, the horizontal velocity component of D of two lifting wheels (preceding lifting wheel 4 and back lifting wheel 16) of backswing cancel out each other; Last module case 10 is approximately zero in theory with the horizontal resultant that following girff 9 finally receives, and not only go up module case 10 and operate steadily with following girff 9, and 6 life-spans of guide rail becomes several times to improve.
4, steel cable 11 transmissions do not have gap, fricton-tight, noiseless.Interlock steel cable 11 is fixed on the lifting wheel through pressing plate 5, in transmission process, is nonslipping pure rolling between steel cable 11 and the lifting wheel (preceding lifting wheel 4 and back lifting wheel 16), and it is minimum therefore to wear and tear; All the time be in tensioning state because steel cable 11 receives the pretension effect of regulating bolt 17 again, the no gap of commutate, do not have impact, this be this mechanism can be steadily, the another factor moved of low noise.
Claims (6)
1. a single-lift electronic jacquard machine steel cable inscribe drives the low impact high speed shedding mechanism, comprises frame (2), following girff (9) and last module case (10); It is characterized in that: be installed with on the described frame (2) do the circumgyration campaign crank (1) and frame (2) on also be installed with preceding lifting wheel (4) and back lifting wheel (16); Connect through drive link (3) between described crank (1) and the preceding lifting wheel (4); Connect through steel cable (11) between preceding lifting wheel (4) and the back lifting wheel (16); Described girff (9) down links to each other with back lifting wheel (16) with preceding lifting wheel (4) respectively through nowel connecting rod (7), and last module case (10) links to each other with back lifting wheel (16) with preceding lifting wheel (4) through top box connecting rod (8); Between following girff (9) and the last module case (10) guide rail (6) is installed.
2. single-lift electronic jacquard machine steel cable inscribe as claimed in claim 1 drives the low impact high speed shedding mechanism; It is characterized in that: lifting wheel (4) drives through drive link (3) and does oscillating motion before described, and back lifting wheel (16) twines and is fixed in the steel cable (11) that self reaches preceding lifting wheel (4) by the inscribe interleaved mode through one and drives and realize and the opposite swing of preceding lifting wheel (4) rotation direction.
3. single-lift electronic jacquard machine steel cable inscribe as claimed in claim 2 drives the low impact high speed shedding mechanism; It is characterized in that: described crosspoint with the steel cable (11) of lifting wheel (4) and back lifting wheel (16) before the connection of inscribe interleaved mode is the space, and steel cable is not collided mutually.
4. single-lift electronic jacquard machine steel cable inscribe as claimed in claim 3 drives the low impact high speed shedding mechanism; It is characterized in that: described middle part with the steel cable (11) of lifting wheel (4) and back lifting wheel (16) before the connection of inscribe interleaved mode is fixed on the preceding lifting wheel (4) with pressing plate (5), and two free ends of steel cable (11) are fixed with the adjusting bolt (17) that is used for steel cable (11) tensioning.
5. drive the low impact high speed shedding mechanism like claim 1 or 2 or 3 or 4 described single-lift electronic jacquard machine steel cable inscribes; It is characterized in that: the circumferential surface of lifting wheel (4) and back lifting wheel (16) all offers the guide groove that matches with steel cable (11) diameter before described, and the guide groove on described preceding lifting wheel (4) and the back lifting wheel (16) is arranged at its axial direction equidistant parallel respectively.
6. single-lift electronic jacquard machine steel cable inscribe as claimed in claim 5 drives the low impact high speed shedding mechanism; It is characterized in that: the angle of the driving action point of lifting wheel (4) and back lifting wheel (16) its line and centre of gyration vertical line when combine putting down needle selection is less than 25 ° before described, and the angle of its line of while and nowel connecting rod (7) axis is less than 15 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104531449A CN102534920A (en) | 2011-12-30 | 2011-12-30 | Single acting low impact high speed shedding mechanism of electronic jacquard machine, internally tangent driven by steel rope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104531449A CN102534920A (en) | 2011-12-30 | 2011-12-30 | Single acting low impact high speed shedding mechanism of electronic jacquard machine, internally tangent driven by steel rope |
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| CN102534920A true CN102534920A (en) | 2012-07-04 |
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| CN2011104531449A Pending CN102534920A (en) | 2011-12-30 | 2011-12-30 | Single acting low impact high speed shedding mechanism of electronic jacquard machine, internally tangent driven by steel rope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307148A (en) * | 2021-07-06 | 2021-08-27 | 河南华研起重机有限公司 | Hydraulic bidirectional automatic windproof iron wedge |
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|---|---|---|---|---|
| EP0409139A1 (en) * | 1989-07-17 | 1991-01-23 | N.V. Michel Van de Wiele | System for driving the knife-holder of double-lift jacquards of open-shed type, and jacquards provided with such driving-system |
| CN2379486Y (en) * | 1999-06-11 | 2000-05-24 | 江苏长方集团有限公司技术开发部 | Needle-lifting device of jacquard |
| CN101423995A (en) * | 2008-12-18 | 2009-05-06 | 宁波川一纺织设备有限公司 | Crank double-lift high speed electronic jacquard |
| CN201301382Y (en) * | 2008-08-18 | 2009-09-02 | 杭州恒天纺织科技有限公司 | Transmission system for electronic jacquard machine |
| CN202415818U (en) * | 2011-12-30 | 2012-09-05 | 浙江羊山纺织机械有限公司 | Steel-rope internally-tangent driven low-impact high-speed opening mechanism for single-acting electronic jacquard machine |
-
2011
- 2011-12-30 CN CN2011104531449A patent/CN102534920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0409139A1 (en) * | 1989-07-17 | 1991-01-23 | N.V. Michel Van de Wiele | System for driving the knife-holder of double-lift jacquards of open-shed type, and jacquards provided with such driving-system |
| CN2379486Y (en) * | 1999-06-11 | 2000-05-24 | 江苏长方集团有限公司技术开发部 | Needle-lifting device of jacquard |
| CN201301382Y (en) * | 2008-08-18 | 2009-09-02 | 杭州恒天纺织科技有限公司 | Transmission system for electronic jacquard machine |
| CN101423995A (en) * | 2008-12-18 | 2009-05-06 | 宁波川一纺织设备有限公司 | Crank double-lift high speed electronic jacquard |
| CN202415818U (en) * | 2011-12-30 | 2012-09-05 | 浙江羊山纺织机械有限公司 | Steel-rope internally-tangent driven low-impact high-speed opening mechanism for single-acting electronic jacquard machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307148A (en) * | 2021-07-06 | 2021-08-27 | 河南华研起重机有限公司 | Hydraulic bidirectional automatic windproof iron wedge |
| CN113307148B (en) * | 2021-07-06 | 2023-08-25 | 河南华研起重机有限公司 | Hydraulic bidirectional automatic windproof iron wedge |
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Application publication date: 20120704 |