CN201738102U - Stitch driving device - Google Patents
Stitch driving device Download PDFInfo
- Publication number
- CN201738102U CN201738102U CN2010202553707U CN201020255370U CN201738102U CN 201738102 U CN201738102 U CN 201738102U CN 2010202553707 U CN2010202553707 U CN 2010202553707U CN 201020255370 U CN201020255370 U CN 201020255370U CN 201738102 U CN201738102 U CN 201738102U
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- CN
- China
- Prior art keywords
- motor
- chip
- wiring board
- geometric center
- stitch
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a stitch driving device comprising a motor. The tail part of a central spindle of the motor is provided with a groove in which a magnetic block is fixed. The stitch driving device also comprises a circuit board and a protection cover matched with the circuit board. The center of the circuit board is provided with a chip. The geometric center of the chip is vertically aligned with the geometric center of the magnetic block, and a 0.5-0.15 mm gap is kept between the chip and the magnetic block. Compared with the prior art, the utility model brings in the closed-loop control technology, thereby greatly improving the motor accuracy, ensuring the accurate positioning of a stitch cam and preventing the occurrence of needle breakage caused by the position deviation of the stitch cam.
Description
Technical field
The utility model belongs to the Knitting Machinery field, is specifically related to a kind of degree order drive unit.
Background technology
At present, adopt open-loop control technology substantially about the application of degree order drive unit in the homemade flat braiding machine.But, the degree order drive unit of employing open-loop control technology, motor just can be finished the work in moment after the head control panel whenever sent an instruction, then can not feed back to some extent as for operating result.Therefore, the operating result correctness of this motor then has no way of judging.
Along with the develop rapidly of homemade Computerized flat knitting machine, the function enhancing gradually about degree order triangle for example in the part small handpiece three-legged structure, the design of braiding track occurred selecting by the height of degree order triangle.Owing to turn over pin, connect pin, weave, hang the height difference of order elemental motion, this several position all needs degree order triangle is carried out accurately location.Therefore, in the course of the work, if continue to adopt the motor location of open-loop control technology, its operating result is can't be guaranteed.In case degree order angular position departs from institute when requiring the position, the striker phenomenon will be difficult to avoid.
The utility model content
The purpose of this utility model provides a kind of location and spends the order drive unit more accurately.
For this reason, the technical solution adopted in the utility model is as follows: degree order drive unit, comprise motor, and it is characterized in that: the axle core afterbody of described motor has groove, is fixed with magnetic patch in the groove; It also comprises wiring board, and the protecting cover that matches with this wiring board; The central authorities of described wiring board are provided with chip, and the geometric center of this chip is alignd with the geometric center of described magnetic patch is orthogonal, also leave the gap of 0.5～0.15mm between the two.
The edge of described wiring board also is provided with the external lead wire that is word order; Have recess on the sidewall of described protecting cover, match with described external lead wire.
Adopt technique scheme, the utility model is in use done the motion that rotates in a circumferential direction by the rotation drive magnetic patch of motor drive shaft core, spatially forms to be the magnetic field that sine curve distributes; Simultaneously, changes of magnetic field is carried out data sampling, data feedback, thereby reach accurate control motor by chip.
Compared with prior art, the utility model has been introduced Closed loop Control, has improved the accuracy of motor greatly, thereby can guarantee the accurate location to degree order triangle, has avoided because degree order angular position departs from the generation of the striker phenomenon of initiation.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model hall sensor distribution map.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Referring to accompanying drawing.This example comprises motor 1 and wiring board 8, and the protecting cover 9 that matches with this wiring board 8; Axle core 6 afterbodys of described motor 1 have groove 7, are fixed with magnetic patch 2 in the groove 7, and the design that this magnetic patch 2 adopts the N utmost point and S to make up is extremely side by side made by the NdFeB material, and its diameter is 6mm, the high 3mm of being; The central authorities of described wiring board 8 are provided with the chip 5 that inside has 4 hall sensors, and the geometric center of this chip 5 is alignd with the geometric center of described magnetic patch 2 is orthogonal, and error range is within R0.25mm; Simultaneously, also be provided with 3 limited blocks 4 between described wiring board 8 and the motor 1, make the gap of leaving 0.5～0.15mm between chip 5 and the magnetic patch 2.
The edge of described wiring board 8 also is provided with the external lead wire 3 that is word order; Have recess on the sidewall of described protecting cover 9, match with described external lead wire 3.
Present embodiment is because the position of magnetic pole of magnetic patch 2 makes N pole piece district opposite with the magnetic direction in S pole piece district, and the magnetic line of force of the N utmost point and the S utmost point forms the closed-loop path; When magnetic patch 2 is done when motion of rotating in a circumferential direction, spatially form to be the magnetic field that sine curve distributes, its intensity peak is 45～75mT, the intensity peak distribution radius is 1.1mm.
Simultaneously, be R1.1mm because magnetic patch 2 can produce the amplitude distribution in magnetic field, so 4 hall sensors that chip 5 inside have are arranged evenly also corresponding to the distribution of magnetic field intensity, promptly be positioned at four quadrantal points places of R1.1mm circle.Like this, chip is by four positions of hall sensor, the changes of magnetic field on its vertical direction of sampling.Y1-Y2 inductor behind over-sampling will be exported the sine vector, X1-X2 output cosine vector.
After the data acquisition of hall sensor, can draw the variable quantity of angular displacement through mathematical derivation:
Wherein, error ± 0.5 ° is based on magnetic field and sensor location error and leakage field or other factors and causes institute and cause.
Claims (2)
1. degree order drive unit comprises motor, it is characterized in that: the axle core afterbody of described motor has groove, is fixed with magnetic patch in the groove; It also comprises wiring board, and the protecting cover that matches with this wiring board; The central authorities of described wiring board are provided with chip, and the geometric center of this chip is alignd with the geometric center of described magnetic patch is orthogonal, also leave the gap of 0.5～0.15mm between the two.
2. degree order motor apparatus according to claim 1, it is characterized in that: the edge of described wiring board also is provided with the external lead wire that is word order; Have recess on the sidewall of described protecting cover, match with described external lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202553707U CN201738102U (en) | 2010-07-13 | 2010-07-13 | Stitch driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202553707U CN201738102U (en) | 2010-07-13 | 2010-07-13 | Stitch driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738102U true CN201738102U (en) | 2011-02-09 |
Family
ID=43553382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202553707U Expired - Fee Related CN201738102U (en) | 2010-07-13 | 2010-07-13 | Stitch driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926123A (en) * | 2012-11-30 | 2013-02-13 | 宁波慈星股份有限公司 | Density triangle closed-loop control device for circular knitting machine |
| CN104158450A (en) * | 2014-08-08 | 2014-11-19 | 浙江恒强科技股份有限公司 | Control system for stitch setting control on machine head of flat knitting machine |
-
2010
- 2010-07-13 CN CN2010202553707U patent/CN201738102U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926123A (en) * | 2012-11-30 | 2013-02-13 | 宁波慈星股份有限公司 | Density triangle closed-loop control device for circular knitting machine |
| CN104158450A (en) * | 2014-08-08 | 2014-11-19 | 浙江恒强科技股份有限公司 | Control system for stitch setting control on machine head of flat knitting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO CIXING CO., LTD. Free format text: FORMER NAME: NINGBO YUREN KNITTING MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 315300 Zhejiang city of Ningbo province Cixi City, Baisha Street East knitted textile city three building No. 6 Patentee after: Ningbo Cixing Co., Ltd. Address before: 315327, Zhejiang, Ningbo province Cixi City East Town Industrial Park Patentee before: Ningbo Yuren Knitting Machine Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |