CN205741476U - A kind of prestressing force adjustable piezoelectric vibrator slide cam selector - Google Patents
A kind of prestressing force adjustable piezoelectric vibrator slide cam selector Download PDFInfo
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- CN205741476U CN205741476U CN201620688209.6U CN201620688209U CN205741476U CN 205741476 U CN205741476 U CN 205741476U CN 201620688209 U CN201620688209 U CN 201620688209U CN 205741476 U CN205741476 U CN 205741476U
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Abstract
This utility model relates to a kind of prestressing force adjustable piezoelectric vibrator slide cam selector, including: piezoelectric vibrator, cutter head connecting pin, middle circle pin, top dowel pin and pretension piezoelectric ceramics, wherein: described piezoelectric vibrator is made up of elastic base plate and piezoelectric ceramics；Described elastic base plate includes two side cantilevers, intermediate cantilever, cantilever bonding pad；Described intermediate cantilever is disposed with bent plate pretension arm；Described bent plate pretension arm is the thin-slab structure being converted into V-arrangement along its length, is made up of two rectangular surfaces mutually formed an angle；Described pretension piezoelectric ceramics is pasted onto in two rectangular surfaces of bent plate pretension arm, apply DC voltage and form predeformation to produce prestressing force, piezoelectric vibrator produces reciprocating motion under the effect of alternating voltage, slide cam selector output displacement realizes adjustable selectivity and goes out pin, realize style sewing, this utility model is widely used in piezoelectric ceramics tricot machine field, compared with conventional prestressing force piezoelectricity slide cam selector, has the advantages such as easily assembling, prestressing force is adjustable.
Description
Technical field
The invention belongs to piezoelectric ceramics tricot machine technical field, be specifically related to a kind of prestressing force adjustable piezoelectric vibrator needle selection
Device.
Background technology
In machinery textile industry, slide cam selector is used to implement the key element that needle selection controls, its properity etc. all incite somebody to action
Directly affect accuracy and reliability that needle selection controls.Conventional piezoelectric formula slide cam selector utilizes inverse piezoelectric effect to make piezoelectric element bend
To the shape remembered in advance to carry out needle selection, have fast response time, heating less, the little feature of power consumption, but it goes out needle force degree not
Enough, displacement output ability is low, easily causes style sewing quality poor.By using prestressing force piezoelectricity slide cam selector can increase amplitude and defeated
Exerting oneself and being effectively improved out needle force degree makes output displacement increase, but its technological difficulties are to need to be previously applied in the pre-assembly
Prestressing force, during practical set, Shi Hanzhang operation complexity, and operating process precision prescribed is high.
Summary of the invention
Little in order to solve current conventional piezoelectric slide cam selector output displacement, and the operation of prestressing force piezoelectricity slide cam selector Shi Hanzhang
Complexity, and the problem that course of processing required precision is high, it is proposed that a kind of prestressing force adjustable piezoelectric vibrator slide cam selector, this prestressing force
Elastic base plate in adjustable piezoelectric vibrator slide cam selector is disposed with bent plate pretension arm, by the pretension piezoelectric ceramics posting surface
Applying DC voltage and produce pretightning force, compared to conventional prestressing force piezoelectricity slide cam selector, Shi Hanzhang of the present invention is simple to operate,
And can have the advantages such as easy assembling, prestressing force is adjustable, output displacement is big, length in service life with on-demand Shi Hanzhang.
To achieve these goals, the present invention is by the following technical solutions:
One prestressing force of the present invention adjustable piezoelectric vibrator slide cam selector, including piezoelectric vibrator, cutter head connecting pin, intermediate cylindrical
Pin, top dowel pin and pretension piezoelectric ceramics, wherein:
Described piezoelectric vibrator is made up of elastic base plate and four piezoelectric ceramics；Described elastic base plate include two side cantilevers,
Intermediate cantilever and cantilever bonding pad；Said two side cantilever is arranged symmetrically with about intermediate cantilever；Said two side cantilever and centre
Cantilever homonymy one end is arranged on described top dowel pin；The upper and lower surface of said two side cantilever is respectively arranged sheet type structure
Piezoelectric ceramics；Described intermediate cantilever is disposed with bent plate pretension arm near one end of top dowel pin；Described bent plate pretension arm is
It is converted into the thin-slab structure of V-arrangement along its length, is made up of two rectangular surfaces mutually formed an angle, bent plate folding line and length direction
Vertically；It is pasted with pretension piezoelectric ceramics in two rectangular surfaces of described bent plate pretension arm, applies DC voltage and imitated by inverse piezoelectricity
Bent plate pretension arm should be made to bend, and then produce prestressing force；Said two side cantilever and intermediate cantilever are arranged in described cantilever
The same side of bonding pad；Described cutter head connecting pin is arranged in the opposite side of described cantilever bonding pad；Described middle circle pin is arranged
Near the side of two side cantilevers on described cantilever bonding pad.
During work, applying DC voltage to pretension piezoelectric ceramics, bent plate pretension arm stress occurs bending and deformation, in the middle of tension
Cantilever, now two side cantilevers of piezoelectric vibrator are applied in upper prestressing force by the pulling force of intermediate cantilever.Piezoelectric vibrator is executed
After adding alternating current drive signal, piezoelectric vibrator occurs cyclic bending to deform under the effect of alternating voltage, and piezoelectric vibrator drives needle selection
Device output displacement, it is achieved adjustable optionally go out pin, the mechanization completing pin runs, it is achieved the sewing of style.Quit work
After, pretension piezoelectric ceramics is stopped power supply, and bent plate pretension arm restores to the original state, and prestressing force disappears.With conventional prestressing force piezoelectricity slide cam selector
Comparing, the piezoelectric vibrator in the present invention uses pretension piezoelectric ceramics Shi Hanzhang, simple to operate, can on-demand applying in advance should
Power, has the advantages such as easy assembling, prestressing force is adjustable, output displacement is big, length in service life.
Accompanying drawing explanation
Fig. 1 is one prestressing force of the present invention adjustable piezoelectric vibrator structure of needle selection device schematic diagram.
Fig. 2 is the side view of a kind of prestressing force of the present invention adjustable piezoelectric vibrator slide cam selector.
Fig. 3 is the present invention used elastic base plate structural representation.
Fig. 4 is the present invention used bent plate pretension arm and pretension piezoelectric ceramics installation relation schematic diagram.
Fig. 5 is that the present invention used bent plate pretension arm stress bends schematic diagram.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of prestressing force adjustable piezoelectric vibrator slide cam selector of the present invention is by piezoelectricity
Oscillator 1, cutter head connecting pin 2, middle circle pin 3, top dowel pin 4 and pretension piezoelectric ceramics 5 are constituted, wherein:
Described piezoelectric vibrator 1 is made up of elastic base plate 11 and four piezoelectric ceramics 12；Described elastic base plate 11 includes two
Side cantilever 111, intermediate cantilever 112 and cantilever bonding pad 113；Said two side cantilever 111 is about the symmetrical cloth of intermediate cantilever 112
Put；Said two side cantilever 111 and intermediate cantilever 112 homonymy one end are arranged on described top dowel pin 4；Said two side hangs
The upper and lower surface of arm 111 is respectively arranged the piezoelectric ceramics 12 of sheet type structure；Described intermediate cantilever 112 is near top dowel pin 4
One end be disposed with bent plate pretension arm 1121；Described bent plate pretension arm 1121 is the thin-slab structure being converted into V-arrangement along its length, by
Two rectangular surfaces mutually formed an angle are constituted, and bent plate folding line is vertical with length direction；Two of described bent plate pretension arm 1121
Pretension piezoelectric ceramics 5 it is pasted with in rectangular surfaces；Said two side cantilever 111 and intermediate cantilever 112 are arranged in described cantilever and connect
The same side in district 113；Described cutter head connecting pin 2 is arranged in the opposite side of described cantilever bonding pad 113；Described middle circle pin 3
It is arranged on described cantilever bonding pad 113 side near two side cantilevers 111.
During work, pretension piezoelectric ceramics 5 applying DC voltage and makes it produce flexural deformation, piezoelectric vibrator 1 produces pre-answering
, there is cyclic bending deformation in power under the effect of alternating voltage, band dynamic cutter head connecting pin 2 moves, it is achieved whole slide cam selector defeated
Go out displacement.
Claims (1)
1. a prestressing force adjustable piezoelectric vibrator slide cam selector, including: piezoelectric vibrator (1), cutter head connecting pin (2), intermediate cylindrical
Pin (3) and top dowel pin (4), it is characterised in that also include pretension piezoelectric ceramics (5), wherein: described piezoelectric vibrator (1) is by bullet
Property substrate (11) and four piezoelectric ceramics (12) composition；Described elastic base plate (11) includes two side cantilevers (111), intermediate cantilever
And cantilever bonding pad (113) (112)；Said two side cantilever (111) is arranged symmetrically with about intermediate cantilever (112)；Said two
Side cantilever (111) and intermediate cantilever (112) homonymy one end are arranged on described top dowel pin (4)；Said two side cantilever
(111) upper and lower surface is respectively arranged the piezoelectric ceramics (12) of sheet type structure；Described intermediate cantilever (112) positions near top
One end of pin (4) is disposed with bent plate pretension arm (1121)；Described bent plate pretension arm (1121) is for being converted into the thin of V-arrangement along its length
Plate structure, is made up of two rectangular surfaces mutually formed an angle, and bent plate folding line is vertical with length direction；Described bent plate pretension arm
(1121) pretension piezoelectric ceramics (5) it is pasted with in two rectangular surfaces；Said two side cantilever (111) and intermediate cantilever (112) cloth
Put the same side described cantilever bonding pad (113)；Described cutter head connecting pin (2) is arranged in described cantilever bonding pad (113)
Opposite side；Described middle circle pin (3) is arranged in the upper side near two side cantilevers (111) of described cantilever bonding pad (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688209.6U CN205741476U (en) | 2016-07-04 | 2016-07-04 | A kind of prestressing force adjustable piezoelectric vibrator slide cam selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688209.6U CN205741476U (en) | 2016-07-04 | 2016-07-04 | A kind of prestressing force adjustable piezoelectric vibrator slide cam selector |
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| Publication Number | Publication Date |
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| CN205741476U true CN205741476U (en) | 2016-11-30 |
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| CN201620688209.6U Active CN205741476U (en) | 2016-07-04 | 2016-07-04 | A kind of prestressing force adjustable piezoelectric vibrator slide cam selector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574565A (en) * | 2016-07-04 | 2018-01-12 | 长春上缘科技发展有限公司 | A kind of adjustable piezoelectric vibrator slide cam selector of prestressing force |
-
2016
- 2016-07-04 CN CN201620688209.6U patent/CN205741476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574565A (en) * | 2016-07-04 | 2018-01-12 | 长春上缘科技发展有限公司 | A kind of adjustable piezoelectric vibrator slide cam selector of prestressing force |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201028 Address after: Room a602-2, No.99, Keji 1st Street, No.18 building, innovation and entrepreneurship square, hi tech innovation city, Harbin City, Heilongjiang Province Patentee after: Zhongmian precision machinery (Harbin) Co., Ltd Address before: High tech Zone of Jilin province Changchun Kumho road 130000 No. 1357 Patentee before: CHANGCHUN SHANGYUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |