CN104805583A - Prestress piezoelectric needle selector drive unit - Google Patents
Prestress piezoelectric needle selector drive unit Download PDFInfo
- Publication number
- CN104805583A CN104805583A CN201510273006.0A CN201510273006A CN104805583A CN 104805583 A CN104805583 A CN 104805583A CN 201510273006 A CN201510273006 A CN 201510273006A CN 104805583 A CN104805583 A CN 104805583A
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- CN
- China
- Prior art keywords
- spring
- bonding pad
- location hole
- piezoelectric
- boom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The invention relates to a prestress piezoelectric needle selector drive unit. The prestress piezoelectric needle selector drive unit comprises a piezoelectric vibrator, an open cylindrical pin, a tool bit hinge pin column, a substrate hinge pin column and a pre-tightening spring, the piezoelectric vibrator consists of an elastic base plate and a piezoelectric sheet material which is attached to the surface of the elastic base plate; the elastic substrate is a symmetric rectangular sheet structure with a rectangular through hole and comprises four areas, i.e. an upper cantilever, a lower cantilever, a front cantilever connecting area and a rear cantilever connecting area; spring positioning holes are respectively formed in the front cantilever connecting area and the rear cantilever connecting; the pre-tightening spring is a linear spring, and two ends of the pre-tightening spring are connected with two spring positioning holes; the tool bit hinge pin column is arranged on one end of the elastic base plate, the substrate hinge pin column is arranged on the other end of the elastic substrate, and the open cylindrical pin is arranged in the middle part of the elastic substrate. The prestress piezoelectric needle selector drive unit is widely applied to the field of a piezoelectric warp knitting machine. Compared with the traditional piezoelectric needle selector drive unit, the vibration amplitude is greater, and the output force is greater.
Description
Technical field
The invention belongs to piezoelectric ceramics warp knitting machine technical field, be specifically related to a kind of prestressing force piezoelectricity slide cam selector driver element.
Background technology
In machinery textile industry, slide cam selector is used to the key element implementing needle selection control, and its properity etc. all directly will affect accuracy and the reliability of needle selection control.Utilize inverse piezoelectric effect, slide cam selector can realize needle selecting function by carry-out bit in-migration.Piezoelectric vibrator in existing slide cam selector, be formed, the slide cam selector be made up of such piezoelectric vibrator by the bonding piezoelectric ceramics of the elastic base plate that a slice is common, displacement output ability is low, there will be pin not in place, go out the inadequate phenomenon of needle force degree, cause style sewing quality poor.
Summary of the invention
In order to solve current slide cam selector, to go out needle force degree inadequate, the problem that output displacement is less, propose a kind of prestressing force piezoelectricity slide cam selector driver element, this driver element adopts prestressed piezoelectric vibrator, under identical driving voltage its amplitude and power output larger, effectively can improve slide cam selector and go out needle force degree, output displacement is increased, the present invention compares existing slide cam selector driver element and has higher performance.
To achieve these goals, the present invention is by the following technical solutions:
A kind of prestressing force piezoelectricity of the present invention slide cam selector driver element, comprises piezoelectric vibrator, open circles pin, the hinged pin of cutter head and the hinged pin of pedestal, characterized by further comprising preloading spring, wherein: piezoelectric vibrator is made up of elastic base plate and piezoelectric sheet material; Described elastic base plate is the symmetrical rectangular flake structure with rectangular through-hole, comprises four regions, is respectively upper cantilever, lower cantalever, front boom bonding pad and back boom bonding pad; Described upper cantilever and lower cantalever measure-alike and be arranged symmetrically with about the substrate axis of symmetry; The length of described front boom bonding pad is greater than the length of back boom bonding pad; Described front boom bonding pad and back boom bonding pad are furnished with the first location hole of the spring and the second location hole of the spring respectively, and described first location hole of the spring and the second location hole of the spring are arranged in the side near rectangular through-hole and are positioned on the substrate axis of symmetry; The both sides that described piezoelectric sheet material is pasted onto upper cantilever and lower cantalever form described piezoelectric vibrator; Described preloading spring is linear springs, and one end is connected with the first location hole of the spring, and the other end is connected with the second location hole of the spring; The opening size of described open circles pin is identical with the cross sectional dimensions of front boom bonding pad, is arranged in the side of front boom bonding pad near the first location hole of the spring by consolidation; Described front boom bonding pad is furnished with the hinged pin of cutter head away from the side of the first location hole of the spring by interference fit or bonding mode; Described back boom bonding pad is furnished with the hinged pin of pedestal away from the side of the second location hole of the spring by interference fit or bonding mode.
During work, by open circles pin, piezoelectric vibrator and frame are assembled, open circles pin and frame form revolute pair, the hinged pin of cutter head is arranged in cutter head U-type groove, the hinged pin of pedestal is arranged in pedestal U-type groove, apply alternating voltage at the two poles of the earth of described piezoelectric sheet material, piezoelectric vibrator produces cyclic bending distortion under the acting in conjunction of prestressing force and piezo-electric effect, is swung by cutter head swivel pin cornice dynamic cutter head.Due to prestressed existence, power output and the output displacement of piezoelectric vibrator are obviously increased.
Accompanying drawing explanation
Fig. 1 is a kind of prestressing force piezoelectricity of the present invention slide cam selector structure of driving unit schematic diagram.
Fig. 2 is elastic base plate structural representation of the present invention.
Fig. 3 is the schematic diagram of each part of the present invention and the relation of installation.
Detailed description of the invention
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of prestressing force piezoelectricity slide cam selector driver element of the present invention is made up of piezoelectric vibrator 1, open circles pin 2, the hinged pin of cutter head 3 and the hinged pin 4 of pedestal, characterized by further comprising preloading spring 5, wherein:
Piezoelectric vibrator 1 is made up of elastic base plate 11 and piezoelectric sheet material 12; Described elastic base plate 11 is the symmetrical rectangular flake structure with rectangular through-hole, comprises four regions, is respectively upper cantilever 111, lower cantalever 112, front boom bonding pad 113 and back boom bonding pad 114; Described upper cantilever 111 and lower cantalever 112 measure-alike and be arranged symmetrically with about the substrate axis of symmetry 115; The length of described front boom bonding pad 113 is greater than the length of back boom bonding pad 114; Described front boom bonding pad 113 and back boom bonding pad 114 are furnished with the first location hole of the spring 116 and the second location hole of the spring 117 respectively, and described first location hole of the spring 116 and the second location hole of the spring 117 are arranged in the side near rectangular through-hole and are positioned on the substrate axis of symmetry 115; The both sides that described piezoelectric sheet material 12 is pasted onto upper cantilever 111 and lower cantalever 112 form described piezoelectric vibrator 1; Described preloading spring 5 is linear springs, and one end is connected with the first location hole of the spring 116, and the other end is connected with the second location hole of the spring 117; The opening size of described open circles pin 2 is identical with the cross sectional dimensions of front boom bonding pad 113, is arranged in the side of front boom bonding pad 113 near the first location hole of the spring 116 by consolidation; Described front boom bonding pad 113 is furnished with the hinged pin 3 of cutter head away from the side of the first location hole of the spring 116; Described back boom bonding pad 114 is furnished with the hinged pin 4 of pedestal away from the side of the second location hole of the spring 117.
During work, piezoelectric vibrator 1 and frame are assembled by open circles pin 2, open circles pin 2 and frame form revolute pair, and the hinged pin 3 of cutter head is arranged in cutter head U-type groove, the hinged pin 4 of pedestal is arranged in pedestal U-type groove, applies alternating voltage at the two poles of the earth of described piezoelectric sheet material 12.
Claims (1)
1. a prestressing force piezoelectricity slide cam selector driver element, comprise: piezoelectric vibrator (1), open circles pin (2), the hinged pin of cutter head (3) and the hinged pin of pedestal (4), characterized by further comprising preloading spring (5), wherein: piezoelectric vibrator (1) is made up of elastic base plate (11) and piezoelectric sheet material (12); Described elastic base plate (11) is the symmetrical rectangular flake structure with rectangular through-hole, comprises four regions, is respectively upper cantilever (111), lower cantalever (112), front boom bonding pad (113) and back boom bonding pad (114); Described upper cantilever (111) and lower cantalever (112) measure-alike and be arranged symmetrically with about the substrate axis of symmetry (115); The length of described front boom bonding pad (113) is greater than the length of back boom bonding pad (114); Described front boom bonding pad (113) and back boom bonding pad (114) are furnished with the first location hole of the spring (116) and the second location hole of the spring (117) respectively, and described first location hole of the spring (116) and the second location hole of the spring (117) are arranged in the side near rectangular through-hole and are positioned on the substrate axis of symmetry (115); The both sides that described piezoelectric sheet material (12) is pasted onto upper cantilever (111) and lower cantalever (112) form described piezoelectric vibrator (1); Described preloading spring (5) is linear springs, and one end is connected with the first location hole of the spring (116), and the other end is connected with the second location hole of the spring (117); The opening size of described open circles pin (2) is identical with the cross sectional dimensions of front boom bonding pad (113), is arranged in the side of front boom bonding pad (113) near the first location hole of the spring (116) by consolidation; Described front boom bonding pad (113) is furnished with the hinged pin of cutter head (3) away from the side of the first location hole of the spring (116); Described back boom bonding pad (114) is furnished with the hinged pin of pedestal (4) away from the side of the second location hole of the spring (117).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273006.0A CN104805583A (en) | 2015-05-26 | 2015-05-26 | Prestress piezoelectric needle selector drive unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510273006.0A CN104805583A (en) | 2015-05-26 | 2015-05-26 | Prestress piezoelectric needle selector drive unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104805583A true CN104805583A (en) | 2015-07-29 |
Family
ID=53690762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510273006.0A Pending CN104805583A (en) | 2015-05-26 | 2015-05-26 | Prestress piezoelectric needle selector drive unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104805583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574566A (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 Jacquard sley point of prestressing force |
-
2015
- 2015-05-26 CN CN201510273006.0A patent/CN104805583A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574566A (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 Jacquard sley point of prestressing force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |