CN107574566A - A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force - Google Patents
A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force Download PDFInfo
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- CN107574566A CN107574566A CN201610513617.2A CN201610513617A CN107574566A CN 107574566 A CN107574566 A CN 107574566A CN 201610513617 A CN201610513617 A CN 201610513617A CN 107574566 A CN107574566 A CN 107574566A
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- syringe needle
- prestressing force
- pretension
- piezoelectric vibrator
- piezoelectric ceramics
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- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention relates to a kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force, including：Piezoelectric vibrator, guide syringe needle, pretension piezoelectric ceramics, wherein：The piezoelectric vibrator is made up of elastic base plate and piezoelectric ceramics, and the elastic base plate includes two side cantilevers, intermediate cantilever, pedestal bonding pad and syringe needle bonding pad；The piezoelectric ceramics is pasted onto the upper and lower surface of two side cantilevers；The intermediate cantilever is disposed with bent plate pretension arm, and the bent plate pretension arm is the thin-slab structure for being converted into V-arrangement along its length, including two rectangular surfaces by mutually forming an angle are formed；The pretension piezoelectric ceramics is pasted onto in two rectangular surfaces of bent plate pretension arm, applies DC voltage to produce prestressing force；The guide syringe needle is arranged in the syringe needle bonding pad end on elastic base plate.The present invention is widely used in piezoelectric ceramics tricot machine field, compared with conventional prestressing force piezoelectric vibrator Jacquard sley point, has the advantages that easily assembling, prestressing force is adjustable.
Description
Technical field
The invention belongs to piezoelectric ceramics tricot machine technical field, and in particular to a kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force.
Background technology
Jacquard sley point is used for jacquard warp, is the critical component for realizing jacquard weave function, the deflection of sley point is realized using inverse piezoelectric effect.Piezoelectric ceramic wafer by polarization can produce the deformation shunk and upheld plus voltage so that sley point offsets or offset to the right to the left.Have in existing Jacquard sley point using common rectangle piezoelectric vibrator, also have using prestressing force piezoelectric vibrator.Prestressing force piezoelectric vibrator has the advantages that service life is long, required voltage is low, output displacement is big and has obtained theoretical and experimental verification, but its technological difficulties is to need to be previously applied prestressing force in the pre-assembly, during practical set, apply stressing operations complexity, and operating process needs very high precision.
The content of the invention
It is small for the traditional Jacquard sley point piezoelectric vibrator output displacement of solution, and prestressing force Jacquard sley point applies stressing operations complexity, and process required precision it is high the problem of, propose a kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force, elastic base plate in the sley point is disposed with bent plate pretension arm, DC voltage is applied by the pretension piezoelectric ceramics posted to surface and produces pretightning force, compared to conventional prestressing force Jacquard sley point, it is simple that the present invention applies stressing operations, and prestressing force can be applied on demand, with easy assembling, prestressing force is adjustable, output displacement is big, the advantages that service life is long.
To achieve these goals, the present invention uses following technical scheme：
A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force of the present invention, including piezoelectric vibrator, guide syringe needle, pretension piezoelectric ceramics, wherein：
The piezoelectric vibrator is made up of elastic base plate and piezoelectric ceramics, and the elastic base plate includes two side cantilevers, intermediate cantilever, pedestal bonding pad and syringe needle bonding pad；Described two side cantilevers are arranged symmetrically on intermediate cantilever, and the piezoelectric ceramics is pasted onto the upper and lower surface of two side cantilevers；The intermediate cantilever is disposed with bent plate pretension arm close to one end of pedestal bonding pad, and the bent plate pretension arm is the thin-slab structure for being converted into V-arrangement along its length, is made up of two rectangular surfaces mutually to form an angle, bent plate folding line is vertical with length direction；The pretension piezoelectric ceramics is pasted onto in two rectangular surfaces of bent plate pretension arm, and apply DC voltage makes bent plate pretension arm bend by inverse piezoelectric effect, and then produces prestressing force；The guide syringe needle is arranged in the syringe needle bonding pad end on elastic base plate, for threading yarn.
The elastic base plate and guide syringe needle are two independent components, or are made of one a formula i.e. component；Parts are conveniently replaceable using two independent components, processing technology can be improved using a component.
During work, apply DC voltage to pretension piezoelectric ceramics, bent plate pretension arm stress occurs bending and deformation, and tenses intermediate cantilever, and now the two of piezoelectric vibrator side cantilever is applied in upper prestressing force by the pulling force of intermediate cantilever.After applying alternating current drive signal on piezoelectric vibrator, cyclic bending deformation occurs in the presence of alternating voltage for piezoelectric vibrator, and piezoelectric vibrator drives the motion of guide syringe needle, realizes the skew of whole sley point syringe needle, and syringe needle drives yarn movement.After being stopped, pretension piezoelectric ceramics is stopped power supply, and bent plate pretension arm restores to the original state, and prestressing force disappears.Compared with conventional prestressing force Jacquard sley point, the piezoelectric vibrator in the present invention applies prestressing force using pretension piezoelectric ceramics, simple to operate, can apply prestressing force on demand, has the advantages that easily assembling, prestressing force is adjustable, output displacement is big, service life is long.
Brief description of the drawings
Fig. 1 is a kind of adjustable piezoelectric vibrator Jacquard sley point structural representation of prestressing force of the present invention.
Fig. 2 is elastic base plate structural representation of the present invention.
Fig. 3 is bent plate pretension arm and pretension piezoelectric ceramics installation relation schematic diagram of the present invention.
Fig. 4 is bent plate pretension arm stress bending schematic diagram of the present invention.
Embodiment
Reference picture 1, Fig. 2, Fig. 3 and Fig. 4, a kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force of the invention are made up of piezoelectric vibrator 1, guide syringe needle 2, pretension piezoelectric ceramics 3, wherein：
The piezoelectric vibrator 1 is made up of elastic base plate 11 and piezoelectric ceramics 12, and the elastic base plate 11 includes two side cantilevers 111, intermediate cantilever 112, pedestal bonding pad 113 and syringe needle bonding pad 114；Described two side cantilevers 111 are arranged symmetrically on intermediate cantilever 112, and the piezoelectric ceramics 12 is pasted onto the upper and lower surface of two side cantilevers 111；The intermediate cantilever 112 is disposed with bent plate pretension arm 1121 close to one end of pedestal bonding pad 113, the bent plate pretension arm 1121 is the thin-slab structure for being converted into V-arrangement along its length, it is made up of two rectangular surfaces mutually to form an angle, bent plate folding line is vertical with length direction；The pretension piezoelectric ceramics 3 is pasted onto in two rectangular surfaces of bent plate pre-pressing structure 1121；The guide syringe needle 2 is arranged in the end of syringe needle bonding pad 114 on elastic base plate 11.
The elastic base plate 11 and guide syringe needle 2 are two independent components, are combined through bonding.
During work, applying DC voltage to pretension piezoelectric ceramics 3 makes it produce flexural deformation, and piezoelectric vibrator 1 produces prestressing force, and cyclic bending deformation occurs in the presence of alternating voltage, drives syringe needle 4 to move, realizes the skew of whole sley point syringe needle.
Claims (2)
1. a kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force, including：Piezoelectric vibrator（1）, guide syringe needle（2）, it is characterised in that also including pretension piezoelectric ceramics（3）, wherein：The piezoelectric vibrator（1）By elastic base plate（11）And piezoelectric ceramics（12）Composition, the elastic base plate（11）Including two side cantilevers（111）, intermediate cantilever（112）, pedestal bonding pad（113）With syringe needle bonding pad（114）；Described two side cantilevers（111）On intermediate cantilever（112）It is arranged symmetrically, the piezoelectric ceramics（12）It is pasted onto two side cantilevers（111）Upper and lower surface；The intermediate cantilever（112）Close to pedestal bonding pad（113）One end be disposed with bent plate pretension arm（1121）, the bent plate pretension arm（1121）To be converted into the thin-slab structure of V-arrangement along its length, it is made up of two rectangular surfaces mutually to form an angle, bent plate folding line is vertical with length direction；The pretension piezoelectric ceramics（3）It is pasted onto bent plate pretension arm（1121）Two rectangular surfaces on；The guide syringe needle（2）It is arranged in elastic base plate（11）On syringe needle bonding pad（114）End.
A kind of 2. adjustable piezoelectric vibrator Jacquard sley point of prestressing force according to claim 1, it is characterised in that：The elastic base plate（11）With guide syringe needle（2）For two independent components, or it is made of one a formula i.e. component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513617.2A CN107574566A (en) | 2016-07-04 | 2016-07-04 | A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513617.2A CN107574566A (en) | 2016-07-04 | 2016-07-04 | A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force |
Publications (1)
| Publication Number | Publication Date |
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| CN107574566A true CN107574566A (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610513617.2A Pending CN107574566A (en) | 2016-07-04 | 2016-07-04 | A kind of adjustable piezoelectric vibrator Jacquard sley point of prestressing force |
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Citations (10)
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|---|---|---|---|---|
| DE546280C (en) * | 1932-03-11 | Axel Brestlin | Clip-on folder for folders or the like with laterally open slots and double leg springs made of wire arranged in these | |
| US5849125A (en) * | 1997-02-07 | 1998-12-15 | Clark; Stephen E. | Method of manufacturing flextensional transducer using pre-curved piezoelectric ceramic layer |
| US5875654A (en) * | 1996-12-24 | 1999-03-02 | Karl Mayer Textilmachinenfabrik Gmbh | Arrangement for controlling the stroke of stroke elements in a warp knitting machine |
| US20100079039A1 (en) * | 2005-06-22 | 2010-04-01 | Siemens Aktiengesellschaft | Piezoelectric actuator with an improved stroke capability |
| US20130055889A1 (en) * | 2010-03-05 | 2013-03-07 | Markus Herz | Method for manufacturing a bending transducer, a micro pump and a micro valve, micro pump and micro valve |
| CN104805589A (en) * | 2015-05-26 | 2015-07-29 | 吉林大学 | Prestress jacquard guide needle |
| CN104805583A (en) * | 2015-05-26 | 2015-07-29 | 长春上缘科技发展有限公司 | Prestress piezoelectric needle selector drive unit |
| CN104805590A (en) * | 2015-05-26 | 2015-07-29 | 吉林大学 | Prestress piezoelectric vibrator jacquard guide needle |
| CN204690255U (en) * | 2015-05-26 | 2015-10-07 | 吉林大学 | A kind of prestressing force Jacquard sley point |
| CN205775137U (en) * | 2016-07-04 | 2016-12-07 | 长春上缘科技发展有限公司 | A kind of prestressing force adjustable piezoelectric vibrator Jacquard sley point |
-
2016
- 2016-07-04 CN CN201610513617.2A patent/CN107574566A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE546280C (en) * | 1932-03-11 | Axel Brestlin | Clip-on folder for folders or the like with laterally open slots and double leg springs made of wire arranged in these | |
| US5875654A (en) * | 1996-12-24 | 1999-03-02 | Karl Mayer Textilmachinenfabrik Gmbh | Arrangement for controlling the stroke of stroke elements in a warp knitting machine |
| US5849125A (en) * | 1997-02-07 | 1998-12-15 | Clark; Stephen E. | Method of manufacturing flextensional transducer using pre-curved piezoelectric ceramic layer |
| US20100079039A1 (en) * | 2005-06-22 | 2010-04-01 | Siemens Aktiengesellschaft | Piezoelectric actuator with an improved stroke capability |
| US20130055889A1 (en) * | 2010-03-05 | 2013-03-07 | Markus Herz | Method for manufacturing a bending transducer, a micro pump and a micro valve, micro pump and micro valve |
| CN104805589A (en) * | 2015-05-26 | 2015-07-29 | 吉林大学 | Prestress jacquard guide needle |
| CN104805583A (en) * | 2015-05-26 | 2015-07-29 | 长春上缘科技发展有限公司 | Prestress piezoelectric needle selector drive unit |
| CN104805590A (en) * | 2015-05-26 | 2015-07-29 | 吉林大学 | Prestress piezoelectric vibrator jacquard guide needle |
| CN204690255U (en) * | 2015-05-26 | 2015-10-07 | 吉林大学 | A kind of prestressing force Jacquard sley point |
| CN205775137U (en) * | 2016-07-04 | 2016-12-07 | 长春上缘科技发展有限公司 | A kind of prestressing force adjustable piezoelectric vibrator Jacquard sley point |
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Application publication date: 20180112 |
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