CN102634901B - Non-harness-cord positive needle selection mechanism - Google Patents
Non-harness-cord positive needle selection mechanism Download PDFInfo
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- CN102634901B CN102634901B CN 201210116368 CN201210116368A CN102634901B CN 102634901 B CN102634901 B CN 102634901B CN 201210116368 CN201210116368 CN 201210116368 CN 201210116368 A CN201210116368 A CN 201210116368A CN 102634901 B CN102634901 B CN 102634901B
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- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The invention discloses a non-harness-cord positive needle selection mechanism, which comprises a cam group and a piezoelectric ceramic slice, wherein the cam group is installed on a rack; the rack at the right side of the cam group is provided with an upper push rod and a lower push rod; the rack at the right side of the upper push rod is provided with a driven sliding block; the rack at the right side of the driven sliding block is respectively provided with a left mandril and a right mandril in parallel; the top of the driven sliding block is provided with an upper sliding block; the top of the upper sliding block is provided with the piezoelectric ceramic slice; the rack at the right side of the lower push rod is provided with a lateral sliding block; and the lateral sliding block is provided with an elastic sheet. According to the non-harness-cord positive needle selection mechanism, the size of a jacquard can be reduced. Because no return spring is arranged, the mechanism does not need to overcome the spring tension to do work, and therefore the power consumption of a machine is lowered.
Description
Technical field
The present invention relates to a kind of no harness cord active type selecting mechanism.
Background technology
At present, mainly contain the electronic jacquard machine professional production merchant of three great traditions abroad.They are respectively the history pottery Bills (STAUBLI) of France, the Bonus of Britain (BONAS), and (GROSSE) of Germany, they are also representing the advanced technology of hyundai electronics jacquard.Its selecting mechanism is basic identical, and the jacquard needle selecting mechanism with the history pottery Bill (STAUBLI) of France is that example illustrates its structure and operation principle below.
Its selecting mechanism unit by about the reciprocating branch of griffing of two alternatively up and down you can well imagine moving activity and collude to do and pump, the assembly pulley that the below that two activities are colluded is made up of two pulleys, collude the rope yarn that links to each other on the pulley of assembly pulley top with two activities, rope yarn on the pulley of assembly pulley below is fixed on the frame for one section, and the other end links to each other with the harness cord upper end.Two activities collude above be electromagnetic valve component, have two maintenances to collude on it, its lower end is colluded with two activities respectively and is interlocked, the upper end that keeps colluding can be held or decontrol by electromagnet.
During the electromagnet no power, colluded by two activities of griffing to drive and to move to the top and the time be held hook respectively, this moment, assembly pulley was in upper, thereby make warp thread be in the top shed position, when electromagnet is switched on, keep colluding the upper end and held, thereby its lower end relieving activity is colluded, assembly pulley will move to the next, and warp thread will correspondingly be returned to the lower shed position, and the return of warp thread is to be retracted by the return spring that is positioned at its below.
From the above mentioned as can be known, there is following shortcoming in such mechanism; One, because each member all is vertical layout in the mechanism, and mechanism links to each other with warp thread by harness cord, links to each other with return spring by heald below the warp thread, and this just makes that mechanism's longitudinal size is bigger.Two, the energy consumption aspect except the power input that driving is griffed to move, also has the energy consumption of drive magnet action, though single electromagnet energy consumption is very low, but general jacquard is the scale of several thousand pins easily, makes the energy consumption of drive magnet not allow to ignore, in addition, because the return of warp thread is retracted by return spring, so work as warp thread in forming top shed position process, mechanism has to overcome the pulling force acting of spring, and this has increased the power consumption of machine undoubtedly again.
Summary of the invention
The object of the present invention is to provide a kind of no harness cord active type selecting mechanism, owing to do not have harness cord, heald and return spring, mechanism of the present invention can reduce the size of jacquard, and owing to do not have return spring, mechanism need not overcome the spring tension acting, therefore reduced the power consumption of machine.
In order to achieve the above object, technical scheme of the present invention is:
A kind of no harness cord active type selecting mechanism comprises rack-mounted cam set and piezoelectric ceramic piece, and upper push-rod and lower push-rod are installed on the frame on cam set right side; On the frame on upper push-rod right side driven sliding block is installed, parallel left push rod and the right push rod of being equipped with respectively on the frame on driven sliding block right side; The top of described driven sliding block is equipped with top shoe, and the top of top shoe is equipped with piezoelectric ceramic piece; On the frame on described lower push-rod right side transverse slider is installed, flexure strip is installed on the transverse slider.
Described cam set comprises main cam and auxiliary cam, and the right side of described main cam is equipped with lower push-rod, and the right side of auxiliary cam is equipped with upper push-rod.
Described left push rod and right push rod end are equipped with the triangle jacking block, and the installation direction of 2 triangle jacking blocks is opposite.
Both sides respectively stud with a small cylinder on the described flexure strip.
Offer 1 groove on the described top shoe, described driven sliding block is provided with the projection that matches with groove.
Described top shoe is provided with the first fan-shaped flange; Described transverse slider is provided with the second fan-shaped flange that 2 inclined-planes with the first fan-shaped flange match and install.
Beneficial effect of the present invention is: no harness cord active type selecting mechanism of the present invention, utilize cam mechanism to drive a horizontal elastic panels upwards or be bent downwardly, and the aperture of the rigid rod lower end of warp thread by being connected in the flexure strip centre position, thereby realize going up or the under shed action of warp thread.Compare and before jacquard, because this mechanism is the active type needle selection, so saved devices such as harness cord and return spring, therefore reduced the size of jacquard greatly, and owing to do not have return spring, mechanism need not overcome the spring tension acting, therefore reduced the power consumption of machine, this is concerning today of energy scarcity, and meaning is particularly important.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A portion enlarged drawing of Fig. 1;
Fig. 4 is the enlarged diagram of top shoe of the present invention;
Fig. 5 is the enlarged diagram of driven sliding block of the present invention;
Transverse slider when Fig. 6 is transverse slider arrival of the present invention stroke end and the fundamental diagram of top shoe;
Fig. 7 is the fundamental diagram of off-position function midway time that the present invention realizes warp thread;
Fig. 8 is the fundamental diagram of the present invention when realizing the off-position function of warp thread.
The specific embodiment
Shown in Fig. 1,2,3,4,5, a kind of no harness cord active type selecting mechanism of present embodiment comprises rack-mounted cam set 1 and piezoelectric ceramic piece 2, and upper push-rod 3 and lower push-rod 4 are installed on the frame on cam set 1 right side; On the frame on upper push-rod 3 right sides driven sliding block 5 is installed, parallel left push rod 8 and the right push rod 9 of being equipped with respectively on the frame on driven sliding block 5 right sides; The top of described driven sliding block 5 is equipped with top shoe 10, and the top of top shoe 10 is equipped with piezoelectric ceramic piece 2; On the frame on described lower push-rod 4 right sides transverse slider 6 is installed, flexure strip 7 is installed on the transverse slider 6.Described cam set 1 comprises main cam 15 and auxiliary cam 16, and the right side of described main cam 15 is equipped with lower push-rod 4, and the right side of auxiliary cam 16 is equipped with upper push-rod 3.Described left push rod 8 and right push rod 9 ends are equipped with triangle jacking block 17, and the installation direction of 2 triangle jacking blocks 17 is opposite.(be the wedge angle of the triangle jacking block 17 installed of left push rod 8 ends up, triangle jacking block 17 wedge angles that install right push rod 9 ends down).And stud with the small cylinder 18 that matches with triangle jacking block 17 on the described flexure strip 7.Offer 1 groove 13 on the described top shoe 10, described driven sliding block 5 is provided with the projection 14 that matches with groove 13.Described top shoe 10 is provided with the first fan-shaped flange 11; Described transverse slider 6 is provided with the second fan-shaped flange 12 that 2 inclined-planes with the first fan-shaped flange 11 match and install.
Because when utilizing cam to drive flexure strip, because the bending direction of flexure strip has uncertainty, therefore, mechanism of the present invention is by increasing another one cam and corresponding member, and utilize controllable piezoelectric ceramic piece to realize control to the flexure strip bending direction realizing the control to warp thread then.The specific implementation process is: the swinging of piezoelectric ceramic piece 2 can drive top shoe 10 and swing, because the existence of the projection 14 in the groove 13 of top shoe 10 on the driven sliding block 5, can drive driven sliding block 5 swings, put when piezoelectric ceramic piece 2 left sides, drive top shoe 10 left side pendulum, thereby driven sliding block 5 is put on a left side also, the rotation of cam set 1 at this moment, just promote upper push-rod 3 and move ahead, promote driven sliding block 5 and move ahead and make its projection 14 break away from the groove 13 of top shoes 10, and then promote left push rod 8 and move ahead; Simultaneously main cam 15 just promotes lower push-rod 4 and moves ahead and drive flexure strip 7 and move ahead, because the effect of the triangle jacking block 17 on the left push rod 8, makes flexure strip 7 arches by promoting on the flexure strip 7 small cylinder 18; Cam set 1 is rotated further, and can make flexure strip 7 continue to be bent upwards, till the degree of crook that reaches regulation, thereby with the warp pull-up.The rotation of cam set 1 is rotated further then, and upper push-rod 3, lower push-rod 4 all retreat, and left push rod 8 is resetted, and the projection 14 on the driven sliding block 5 is returned again in the groove 13 of top shoe 10, and flexure strip 7 also is tending towards resetting.This moment, piezoelectric ceramic piece 2 can right be put, drive top shoe 10 right pendulum, thereby driven sliding block 5 is right pendulum also, the rotation of cam set 1 at this moment, making auxiliary cam 16 just promote upper push-rod 3 moves ahead, and promote the groove 13 that driven sliding block 5 moves ahead and makes its projection 14 disengaging top shoes 10, promote right push rod 9 simultaneously and move ahead; Simultaneously large eccentricity cam 15 just promotes lower push-rod 4 and moves ahead and drive flexure strip 7 and move ahead, because the effect of the triangle jacking block 17 on the right push rod 9, small cylinder 18 makes flexure strip 7 be pressed down on the flexure strip 7 by promoting; Thereby realize the reclinate trend of flexure strip 7.Cam set 1 is rotated further, and can make flexure strip 7 continue to be bent downwardly, and till the degree of crook that reaches regulation, this moment, warp was depressed.This mechanism also can realize the off-position function of warp thread, when arriving the degree of crook of regulation, when just said transverse slider arrives the stroke end, as shown in Figure 6, when a moment warp thread is identical with the position in a last moment instantly, the top shoe 1 that is driven by piezoelectric ceramic piece 2 moves to the position identical with previous moment again (if preceding once motion is top shoe 1 right pendulum when transverse slider 6 arrives the stroke end, continue right pendulum this moment), 2 second fan-shaped flanges 12 on the transverse slider 6 will not return in company with lower push-rod 8 under the stopping of the first fan-shaped flange 11 on the top shoe 1 as shown in Figure 7, and at this moment.Thereby the case of bending of flexure strip 7 is held, and the off-position state of warp thread is achieved, as shown in Figure 8.The novel no harness cord active type selecting mechanism of present embodiment, utilize cam mechanism to drive a horizontal elastic panels upwards or be bent downwardly, and the aperture of the rigid rod lower end of warp thread by being connected in the flexure strip centre position, thereby realize going up or the under shed action of warp thread.Compare and before jacquard, because this mechanism is the active type needle selection, so saved devices such as harness cord and return spring, therefore reduced the size of jacquard greatly, and owing to do not have return spring, mechanism need not overcome the spring tension acting, therefore reduced the power consumption of machine, this is concerning today of energy scarcity, and meaning is particularly important.
Claims (4)
1. a no harness cord active type selecting mechanism is characterized in that: comprise rack-mounted cam set (1) and piezoelectric ceramic piece (2), upper push-rod (3) and lower push-rod (4) are installed on the frame on cam set (1) right side; On the frame on upper push-rod (3) right side driven sliding block (5) is installed, parallel left push rod (8) and the right push rod (9) of being equipped with respectively on the frame on driven sliding block (5) right side; The top of described driven sliding block (5) is equipped with top shoe (10), and the top of top shoe (10) is equipped with piezoelectric ceramic piece (2); On the frame on described lower push-rod (4) right side transverse slider (6) is installed, flexure strip (7) is installed on the transverse slider (6); Described left push rod (8) and right push rod (9) end are equipped with triangle jacking block (17), and the installation direction of 2 triangle jacking blocks (17) is opposite; Stud with the small cylinder (18) that matches with triangle jacking block (17) on the described flexure strip (7).
2. no harness cord active type selecting mechanism according to claim 1, it is characterized in that: described cam set (1) comprises main cam (15) and auxiliary cam (16), and the right side of described main cam (15) is equipped with lower push-rod (4), and the right side of auxiliary cam (16) is equipped with upper push-rod (3).
3. no harness cord active type selecting mechanism according to claim 1, it is characterized in that: offer 1 groove (13) on the described top shoe (10), described driven sliding block (5) is provided with the projection (14) that matches with groove (13).
4. no harness cord active type selecting mechanism according to claim 1, it is characterized in that: described top shoe (10) is provided with the first fan-shaped flange (11); Described transverse slider (6) is provided with the second fan-shaped flange (12) that 2 inclined-planes with the first fan-shaped flange (11) match and install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210116368 CN102634901B (en) | 2012-04-19 | 2012-04-19 | Non-harness-cord positive needle selection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210116368 CN102634901B (en) | 2012-04-19 | 2012-04-19 | Non-harness-cord positive needle selection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102634901A CN102634901A (en) | 2012-08-15 |
| CN102634901B true CN102634901B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210116368 Expired - Fee Related CN102634901B (en) | 2012-04-19 | 2012-04-19 | Non-harness-cord positive needle selection mechanism |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538471A (en) * | 1940-04-20 | 1941-08-05 | Alfred Lucas | Improvements relating to jacquard mechanisms |
| DE9306377U1 (en) * | 1993-04-28 | 1993-06-17 | Schleicher, Oskar, 4050 Mönchengladbach | Needle selection device for jacquard machines |
| DE4429765A1 (en) * | 1993-10-19 | 1996-02-29 | Grosse Webereimaschinen Gmbh | Board drive device for jacquard machine |
| DE4335620A1 (en) * | 1993-10-19 | 1995-04-20 | Grosse Webereimaschinen Gmbh | Jacquard machine |
| CN1128308A (en) * | 1995-01-06 | 1996-08-07 | 阎云昌 | Electronic jacquard equipment and its technological process |
| DE19934447A1 (en) * | 1999-05-16 | 2000-11-23 | Piegeler Gerhard | Mechanism to move special warps at the shed of a Jacquard loom has healds moved by lifters with a fixed guide lock and an additional fixed guide in a robust structure with reduced height |
| DE10253992A1 (en) * | 2002-11-19 | 2004-06-03 | Gerhard Piegeler | Shed-forming mechanism without overhead harness for jacquard loom includes return springs at lower end of healds |
| DE102007014869A1 (en) * | 2007-03-26 | 2008-10-02 | Gerhard Piegeler | Shedding device i.e. weaving machine, for textile industry, has individual thread controllers, and direct and permanent connection enabled between healds and lower and upper selecting- and/or lifting elements |
| CN101929017A (en) * | 2010-08-06 | 2010-12-29 | 浙江理工大学 | Piezoelectric ceramic needle selecting machine |
| CN202576749U (en) * | 2012-04-19 | 2012-12-05 | 浙江理工大学 | No-harness-cord positive type needle selection mechanism |
-
2012
- 2012-04-19 CN CN 201210116368 patent/CN102634901B/en not_active Expired - Fee Related
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| CN102634901A (en) | 2012-08-15 |
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Granted publication date: 20130807 |