Dual-driving system and driving method of piezoelectric ceramic driving sheet for needle selector

A piezoelectric ceramic drive, piezoelectric ceramic sheet technology, applied in the field of needle selectors, can solve the problems of increased equipment cost, low textile efficiency, piezoelectric ceramic sheets not working, etc., to improve safety and service life, improve textile Efficiency and quality, the effect of increasing swing force

Inactive Publication Date: 2012-09-26
芮国林 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The driving system of the existing piezoelectric ceramic driving piece has the following disadvantages: in a certain period of time, only one of the piezoelectric ceramic driving pieces of the bimorph piezoelectric ceramic is displaced and driven due to the electric field applied to it. force, while the other piezoelectric ceramic piece is in a non-working state
This situation leads to the need to apply a large electric field to the working piezoelectric ceramic sheet to obtain the required displacement and driving force

Method used

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  • Dual-driving system and driving method of piezoelectric ceramic driving sheet for needle selector
  • Dual-driving system and driving method of piezoelectric ceramic driving sheet for needle selector
  • Dual-driving system and driving method of piezoelectric ceramic driving sheet for needle selector

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The B-203 piezoelectric ceramic sheet produced by Jiangsu Yilong New Energy Technology Development Co., Ltd. is used, with a thickness of 0.25mm. according to image 3 A positive voltage of 190V is applied to the piezoelectric ceramic sheet 210 and a negative voltage of 36V is applied to the piezoelectric ceramic sheet 220 . The force is measured by hanging a weight at the tip of the needle selection, and the maximum mass of the weight applied when the tip of the selection needle does not sink is 8.8 grams.

Embodiment 2

[0039] The B-203 piezoelectric ceramic sheet produced by Jiangsu Yilong New Energy Technology Development Co., Ltd. is used, with a thickness of 0.25mm. according to image 3 A positive voltage of 190V is applied to the piezoelectric ceramic sheet 210 and a negative voltage of 48V is applied to the piezoelectric ceramic sheet 220 . The force is measured by hanging a weight at the tip of the needle selection, and the maximum mass of the weight applied when the tip of the selection needle does not sink is 9.2 grams.

Embodiment 3

[0044] The B-203 piezoelectric ceramic sheet produced by Jiangsu Yilong New Energy Technology Development Co., Ltd. is used, with a thickness of 0.25mm. according to image 3 A positive voltage of 160V is applied to the piezoelectric ceramic sheet 210 and a negative voltage of 48V is applied to the piezoelectric ceramic sheet 220 . The force is measured by hanging a weight at the tip of the needle selection, and the maximum weight applied when the tip of the selection needle does not sink is 8.5g.

[0045] From the results measured in Example 3 and Comparative Example 1, it can be known that the needle selector piezoelectric ceramic drive plate dual drive system of the present invention can apply a lower forward voltage than the prior art, but it can also be applied by applying a reverse voltage. Similar or even greater swing dynamics are obtained. This result shows that the piezoelectric ceramic double drive system of the needle selector in the present invention can reduce ...

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Abstract

The invention relates to a dual-driving system of a piezoelectric ceramic driving sheet for a needle selector. The dual-driving system provided by the invention comprises dual-chip piezoelectric ceramic driving sheets, a base and power supplies. The dual-driving system is characterized in that the power supplies comprise a power supply for providing a positive electric field to one piezoelectric ceramic sheet within a same time period and a power supply for providing a negative electric field to another piezoelectric ceramic sheet, wherein the negative electric field is lower than a coercive electric field of the other piezoelectric ceramic sheet. The invention also provides a driving method of the piezoelectric ceramic driving sheet for the needle selector. The dual-driving system and the driving method thereof provided by the invention have the advantages that when the positive electric field is applied to one piezoelectric ceramic sheet for the piezoelectric ceramic driving sheet, the negative electric field is applied to the other piezoelectric ceramic sheet, so that not only can the swinging strength of the piezoelectric ceramic sheets be increased, but also the applied positive electric field can be lowered appropriately, thus improving and prolonging the safety and the service life of the piezoelectric ceramic sheet applied with the positive electric field.

Description

[0001] technical field [0002] The invention relates to a needle selector in the mechanical textile industry, in particular to a double-drive system and a driving method for a piezoelectric ceramic driving plate of the needle selector. Background technique [0003] As we all know, in the mechanical textile industry, according to the process requirements, the pattern can be sewed by controlling the operation mode of the needle. At present, the general practice is to use a needle selector, especially a piezoelectric ceramic needle selector to realize the automatic operation of the needle. The structure of an existing piezoelectric ceramic needle selector is as follows: figure 1 As shown (partial perspective view), the piezoelectric ceramic needle selector 1000 includes a plurality of piezoelectric ceramic driving pieces 100 , a conductive base 300 , and a needle selection head 500 installed at the front ends of the plurality of piezoelectric ceramic driving pieces 100 . The...

Claims

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Application Information

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IPC IPC(8): D04B15/66H01L41/09
Inventor 芮国林王毅君
Owner 芮国林
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