CN103556346A - Opening mechanism of jacquard machine - Google Patents
Opening mechanism of jacquard machine Download PDFInfo
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- CN103556346A CN103556346A CN201310525725.8A CN201310525725A CN103556346A CN 103556346 A CN103556346 A CN 103556346A CN 201310525725 A CN201310525725 A CN 201310525725A CN 103556346 A CN103556346 A CN 103556346A
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Abstract
The invention discloses an opening mechanism of a jacquard machine. The opening mechanism comprises a four-bar mechanism and a six-bar mechanism which are driven by a same main shaft, and a first crank and a second crank which are hinged on the main shaft, wherein the first crank and the second crank have the same lengths and a phase difference of 180 degrees; the first crank of the four-bar mechanism is used for driving an upper opening arm shaft through a first connecting bar and a third rocking bar; the second crank of the six-bar mechanism is used for driving a third oscillating bar through a second connecting bar; the third oscillating bar is used for driving a fourth rocking bar through a fourth oscillating bar and a third connecting bar; the fourth rocking bar is used for driving a lower opening arm shaft; the third oscillating bar is fixedly connected with the fourth oscillating bar; a loop is arranged on the upper opening arm shaft. A connecting bar of a first-stage bar piece of the six-bar mechanism is arranged to have the length the same as that of a connecting bar of the four-bar mechanism; the phase difference of output curves of the four-bar mechanism and the six-bar mechanism and the vibration of the jacquard mechanism are reduced through using a parallelogram second-stage bar piece, so that the working of the high-speed jacquard machine is facilitated.
Description
Technical field
The present invention relates to loom field, be specifically related to a kind of jacquard shedding mechanism.
Background technology
The transmission system of jacquard is that same root main shaft drives two cranks to rotate, and every crank drives two opening arm axles by connecting rod and rocking bar, and opening arm beam warp connecting rod drives with one page shedding plate.Two four bar shedding mechanisms are first order mechanisms that traditional jacquard drives from spindle, and effect is to drive opening arm axle to swing.Two opening arm axles are one high and one low, and therefore two connecting rods of four-bar mechanism are, the length of frame is different, and the curve of output of mechanism is also different.Two opening arm axles drive and pump with one page shedding plate from the left and right sides respectively, and the motion of the left and right sides must be in full accord, and two curves of output of two four-bar mechanisms have 12 ° of phase differences.
The motion that shedding mechanism completes is simple linear reciprocating motion, and low speed shedding mechanism has been realized reciprocating motion, and two four-bar mechanisms are used on the jacquard of 100-200 rev/min, do not adapt to high speed jacquard machine.The jacquard rotating speed 375-450 rev/min that joins now air-jet loom, jacquard speed is high, the damage of using two four bar shedding mechanisms but to bring impulsive force and parts, the shedding plate of high speed jacquard machine and griffe the unnecessary bending of generation, distortion and torsional oscillation.12 ° of phase differences become the vibration source of jacquard, become the root of various damage of components.
Shedding mechanism completes the alternately lifting of levels warp thread, the motion that shedding mechanism completes is simple linear reciprocating motion, low speed shedding mechanism is just realized reciprocating motion, the not stressed and vibration of method considering zero parts, more do not consider the dynamics of mechanical component, this method for designing can not meet the needs of high speed jacquard machine.Modern jacquard is high carrying at a high speed, and the operating frequency of machinery is higher than the resonant frequency of main parts size, and the design of high-speed mechanism does not produce unnecessary additional force as far as possible realizing the reciprocating while.Adopt two motions of two driving-chains to act on work rod member simultaneously, two motions keep synchronously very important, the parameter of two parallel institutions must be consistent, the making a concerted effort of two motions produces the reciprocating while on work rod member, and the force and moment that two driving-chains produce just can be cancelled out each other.Two minor structures drive workpiece simultaneously, and two minor structures must be non-interference, and inconsistent motion produces not easy motion, and dynamic force and dynamic force moment are all very large.
Summary of the invention
The object of the invention is to overcome the above problem that prior art exists, a kind of jacquard shedding mechanism is provided, with four-bar mechanism and six-bar mechanism, coordinate, the step that reaches left and right sides motion is basically identical.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of jacquard shedding mechanism, comprise the first crank and the second crank that are connected on main shaft, the first crank equates with the second crank length, 180 ° of phase differences, described the first crank drives under shed arm axle by first connecting rod, the first rocking bar successively, described the second crank drives upper shed arm axle by second connecting rod, the first fork, the second fork, third connecting rod and the second rocking bar successively, described the first fork is fixedly connected with the second fork, and kink is on described under shed arm axle;
Described first connecting rod and described second connecting rod are equal in length, and described the first rocking bar equates with the first oscillating bar length, and described the second fork and described the second rocking bar are equal in length, and described third connecting rod length equates with the distance between upper and lower opening arm axle.
Preferably, described the first fork and described the second fork are fixedly connected to form one first centering block.
Preferably, described first centering block one end offers two connecting rod connecting holes, and the other end offers opening arm axis hole, and the first centering block is actively socketed on described under shed arm axle by described opening arm axis hole.
Another kind of jacquard shedding mechanism, comprise the first crank and the second crank that are connected on main shaft, the first crank equates with the second crank length, 180 ° of phase differences, described the first crank drives upper shed arm axle by first connecting rod, the 3rd rocking bar successively, described the second crank drives under shed arm axle by second connecting rod, the 3rd fork, the 4th fork, third connecting rod and the 4th rocking bar successively, described the 3rd fork is fixedly connected with the 4th fork, and stiff end is movably connected on described upper shed arm axle;
Described first connecting rod and described second connecting rod are equal in length, and described the 3rd rocking bar equates with the 3rd oscillating bar length, and described the 4th fork and described the 4th rocking bar are equal in length, and described third connecting rod length equates with the distance between upper and lower opening arm axle.
Preferably, described the 3rd fork and described the 4th fork are fixedly connected to form one second centering block.
Preferably, described second centering block one end offers two connecting rod connecting holes, and the other end offers opening arm axis hole, and the second centering block is actively socketed on described upper shed arm axle by described opening arm axis hole.
The invention has the beneficial effects as follows:
1, the connecting rod two cranks being connected is made as equal length, reduces the phase difference of output, reduces the vibrations of shedding mechanism, is conducive to the work of high speed jacquard machine.
2, use two forks that are fixedly connected with, centering block kink, on opening arm axle, and connects second level rod member, to solve the high low head of opening arm axle.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, below with preferred embodiment of the present invention and coordinate accompanying drawing to be described in detail as follows.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is prior art shedding mechanism principle schematic;
Fig. 2 is prior art shedding mechanism take-off lever rate curve comparison diagram;
Fig. 3 is embodiment 1 shedding mechanism principle schematic;
Fig. 4 is centering block structure schematic diagram;
Fig. 5 is centering block cross-sectional view;
Fig. 6 is embodiment 1 shedding mechanism take-off lever rate curve comparison diagram;
Fig. 7 is embodiment 2 shedding mechanism principle schematic.
The specific embodiment
Shown in Fig. 1, be the jacquard shedding mechanism schematic diagram of prior art, shedding mechanism is two four bar shedding mechanisms.Main shaft drives the first crank AB and the second crank AE, and the first crank AB and the second crank AE drive respectively a set of four-bar mechanism, 180 ° of two first crank AB and the second crank AE phase differences.Two four bar shedding mechanisms be jacquard from the first order mechanism of spindle, effect is to drive shedding plate, two four-bar mechanisms drive respectively pumping of shedding plate from the left and right sides, so the motion of the left and right sides must be in full accord.
Shown in Fig. 2, from comparison curves, the flex point of two curves of output is inconsistent, and phase difference is over 12 °.CD bar angular speed is 0 o'clock, and FG bar angular speed is not 0.This is used on high speed jacquard machine is inappropriate, and shedding plate is asynchronous with two lateral movements of griffing, and causes twist and warping.
For overcoming above problem, the embodiment of the present invention is as follows:
Shown in Fig. 3, a kind of jacquard shedding mechanism, comprise the first crank AB and the second crank AE that are connected in principal axis A, the first crank AB and the second crank AE are equal in length, 180 ° of phase differences, described the first crank AB drives under shed arm axle D by first connecting rod BC, the first rocking bar CD successively, described the second crank AE drives upper shed arm axle G by second connecting rod EF, the first fork FD, the second fork DH, third connecting rod HI and the second rocking bar IG successively, described the first fork FD is fixedly connected with the second fork DH, and centering block kink is under shed arm axle D.
Described first connecting rod BC and described second connecting rod EF are equal in length, described the first rocking bar CD and the first fork FD are equal in length, described the second fork DH and described the second rocking bar IG are equal in length, and described third connecting rod HI length equates with the distance between upper and lower opening arm axle.
Shown in Fig. 4, Fig. 5, described the first fork FD and described the second fork DH are fixedly connected to form one first centering block FDH.Described first centering block FDH one end offers two connecting rod connecting holes 1, and the other end offers 100 FDH of opening arm axis hole 2, the and is actively socketed on described under shed arm axle D by described opening arm axis hole 2.
Shedding mechanism is comprised of four-bar mechanism ABCD, six-bar mechanism AEFDHIG, principal axis A, under shed arm axle D and upper shed arm axle G.One high and one low two opening arm axles are set, utilize the dislocation of diaxon to realize the multiple traverse of jacquard.Four-bar mechanism ABCD and six-bar mechanism AEFDHIG are driven by same principal axis A, principal axis A drives the first crank AB and the second crank AE, the first crank AB drives four-bar mechanism ABCD, four-bar mechanism ABCD drives under shed arm axle D to swing, the second crank AE drives six-bar mechanism AEFDHIG, six-bar mechanism AEFDHIG drives upper shed arm axle G to swing, 180 ° of the first crank AB and the second crank AE phase differences.
Six-bar mechanism AEFDHIG is comprised of first order rod piece A EFD and second level rod member DHIG, and first order rod piece A EFD is crank and rocker mechanism, and second level rod member DHIG is double rocker mechanism.
The first order rod piece A EFD of six-bar mechanism AEFDHIG and second level rod member DHIG are by connecting in the middle of the first centering block FDH, and the first centering block FDH kink is under shed arm axle D.
Shown in Fig. 6, the rate curve comparison of two take-off lever the first rocking bar CD and the second rocking bar IG, from comparison curves, the flex point of two curves of output is very approaching, and phase difference is less than 0.1 °, the first rocking bar CD and the second rocking bar IG basic synchronization.
Shown in Fig. 7, a kind of jacquard shedding mechanism, comprise the first crank AB and the second crank AE that are connected in principal axis A, the first crank AB and the second crank AE are equal in length, 180 ° of phase differences, described the first crank AB drives upper shed arm axle G by first connecting rod BC, the 3rd rocking bar CG successively, described the second crank AE drives under shed arm axle D by second connecting rod EF, the 3rd fork FG, the 4th fork GH, third connecting rod HI and the 4th rocking bar ID successively, described the 3rd fork FG is fixedly connected with the 4th fork GH, and kink is on described upper shed arm axle G.
Described first connecting rod BC and described second connecting rod EF are equal in length, described the 3rd rocking bar CG and the 3rd fork FG are equal in length, described the 4th fork HG and described the 4th rocking bar ID are equal in length, and described third connecting rod HI length equates with the distance between upper and lower opening arm axle.
Described the 3rd fork FG and described the 4th fork GH are fixedly connected to form one second centering block FGH.Described second centering block FGH one end offers two connecting rod connecting holes 1, and the other end offers opening arm axis hole 2, the second centering block FGH and is actively socketed on described upper shed arm axle G by described opening arm axis hole 2.
Shedding mechanism is comprised of four-bar mechanism ABCG, six-bar mechanism AEFGHID, principal axis A, under shed arm axle D and upper shed arm axle G.The first crank AB drives four-bar mechanism ABCG, and four-bar mechanism ABCG drives upper shed arm axle G to swing; The second crank AE drives six-bar mechanism AEFGHID, and six-bar mechanism AEFGHID drives under shed arm axle D to swing, 180 ° of the first crank AB and the second crank AE phase differences.
The first order crank and rocker mechanism AEFG of six-bar mechanism AEFGHID and second level double rocker mechanism GHID are by connecting in the middle of the second centering block FGH, and the second centering block FGH kink is on upper shed arm axle G.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a jacquard shedding mechanism, comprises the first crank (AB) and the second crank (AE) that are connected on main shaft (A), and the first crank (AB) and the second crank (AE) are equal in length, 180 ° of phase differences, it is characterized in that:
Described the first crank (AB) drives under shed arm axle (D) by first connecting rod (BC), the first rocking bar (CD) successively,
Described the second crank (AE) drives upper shed arm axle (G) by second connecting rod (EF), the first fork (FD), the second fork (DH), third connecting rod (HI) and the second rocking bar (IG) successively, described the first fork (FD) is fixedly connected with the second fork (DH), and stiff end is movably connected on described under shed arm axle (D);
Described first connecting rod (BC) is equal in length with described second connecting rod (EF), described the first rocking bar (CD) is equal in length with the first fork (FD), described the second fork (DH) is equal in length with described the second rocking bar (IG), and described third connecting rod (HI) length equates with the distance between upper and lower opening arm axle.
2. jacquard shedding mechanism according to claim 1, is characterized in that: described the first fork (FD) is fixedly connected to form one first centering block (FDH) with described the second fork (DH).
3. jacquard shedding mechanism according to claim 2, it is characterized in that: described the first centering block (FDH) one end offers two connecting rod connecting holes (1), the other end offers opening arm axis hole (2), and the first centering block (FDH) is actively socketed on described under shed arm axle (D) by described opening arm axis hole (2).
4. a jacquard shedding mechanism, comprises the first crank (AB) and the second crank (AE) that are connected on main shaft (A), and the first crank (AB) and the second crank (AE) are equal in length, 180 ° of phase differences, it is characterized in that:
Described the first crank (AB) drives upper shed arm axle (G) by first connecting rod (BC), the 3rd rocking bar (CG) successively,
Described the second crank (AE) drives under shed arm axle (D) by second connecting rod (EF), the 3rd fork (FG), the 4th fork (GH), third connecting rod (HI) and the 4th rocking bar (ID) successively, described the 3rd fork (FG) is fixedly connected with the 4th fork (GH), and stiff end is movably connected on described upper shed arm axle (G);
Described first connecting rod (BC) is equal in length with described second connecting rod (EF), described the 3rd rocking bar (CG) is equal in length with the 3rd fork (FG), described the 4th fork (HG) is equal in length with described the 4th rocking bar (ID), and described third connecting rod (HI) length equates with the distance between upper and lower opening arm axle.
5. jacquard shedding mechanism according to claim 4, is characterized in that: described the 3rd fork (FG) is fixedly connected to form one second centering block (FGH) with described the 4th fork (GH).
6. jacquard shedding mechanism according to claim 5, it is characterized in that: described the second centering block (FGH) one end offers two connecting rod connecting holes (1), the other end offers opening arm axis hole (2), and the second centering block (FGH) is actively socketed on described upper shed arm axle (G) by described opening arm axis hole (2).
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| CN201310525725.8A CN103556346B (en) | 2013-10-31 | 2013-10-31 | Opening mechanism of jacquard machine |
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| CN201310525725.8A CN103556346B (en) | 2013-10-31 | 2013-10-31 | Opening mechanism of jacquard machine |
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| CN103556346B CN103556346B (en) | 2015-01-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032438A (en) * | 2014-06-18 | 2014-09-10 | 吴江万工机电设备有限公司 | Design method of six-rod shedding mechanism with long pause angle at lowest position of shed |
| CN104088057A (en) * | 2014-07-15 | 2014-10-08 | 吴江万工机电设备有限公司 | Six-linkage shedding mechanism for driving six heald frames |
| CN105181365A (en) * | 2015-08-10 | 2015-12-23 | 吴江万工机电设备有限公司 | Test apparatus of influence of jacquard machine opening arm shaft rigidity on shedding knife and method thereof |
| CN107161841A (en) * | 2017-07-27 | 2017-09-15 | 中航沈飞民用飞机有限责任公司 | The lifting appliance overturn for rudder handling |
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| CN104032438A (en) * | 2014-06-18 | 2014-09-10 | 吴江万工机电设备有限公司 | Design method of six-rod shedding mechanism with long pause angle at lowest position of shed |
| CN104032438B (en) * | 2014-06-18 | 2016-05-04 | 吴江万工机电设备有限公司 | Shed open extreme lower position has the method for designing of six bar shedding mechanisms of long pause angle |
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| CN104088057B (en) * | 2014-07-15 | 2015-08-12 | 吴江万工机电设备有限公司 | The six-bar linkage shedding mechanism of a kind of driving six pages of heald frames |
| CN105181365A (en) * | 2015-08-10 | 2015-12-23 | 吴江万工机电设备有限公司 | Test apparatus of influence of jacquard machine opening arm shaft rigidity on shedding knife and method thereof |
| CN107161841A (en) * | 2017-07-27 | 2017-09-15 | 中航沈飞民用飞机有限责任公司 | The lifting appliance overturn for rudder handling |
| CN107161841B (en) * | 2017-07-27 | 2018-08-14 | 中航沈飞民用飞机有限责任公司 | Lifting appliance and its application method for rudder handling overturning |
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Effective date of registration: 20160725 Address after: 215223 Jiangsu Province, Wujiang District of Suzhou City Heng Shan Zhen Wan Ping Road Development Patentee after: WUJIANG WANGONG ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Address before: 215223 Jiangsu Province, Wujiang city Suzhou Wanping City Development Road No. 108 Patentee before: Jiangsu Wangong Technology Group Co.,Ltd. |
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Denomination of invention: Jacquard opening mechanism Effective date of registration: 20220510 Granted publication date: 20150107 Pledgee: Jiangsu Suzhou Rural Commercial Bank Co.,Ltd. Wanping sub branch Pledgor: WUJIANG WANGONG ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2022320010131 |
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Date of cancellation: 20230907 Granted publication date: 20150107 Pledgee: Jiangsu Suzhou Rural Commercial Bank Co.,Ltd. Wanping sub branch Pledgor: WUJIANG WANGONG ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Registration number: Y2022320010131 |