CN1236032A - Feeder stop device on warp knitting machine - Google Patents
Feeder stop device on warp knitting machine Download PDFInfo
- Publication number
- CN1236032A CN1236032A CN99106703A CN99106703A CN1236032A CN 1236032 A CN1236032 A CN 1236032A CN 99106703 A CN99106703 A CN 99106703A CN 99106703 A CN99106703 A CN 99106703A CN 1236032 A CN1236032 A CN 1236032A
- Authority
- CN
- China
- Prior art keywords
- device described
- electrode
- executing agency
- voltage
- flexible transducer
- 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.)
- Granted
Links
- 238000009940 knitting Methods 0.000 title claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000010287 polarization Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
-
- 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
-
- 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
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/24—Thread guide bar assemblies
- D04B27/32—Thread guide bar assemblies with independently-movable thread guides controlled by Jacquard mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Knitting Of Fabric (AREA)
Abstract
The yarn guide (5)-positioning device for a warp-knitting machine is equipped with an operation part (1) that changes its shape under the effect of the quantity of electricity. A measurement probe (15) generates an actual positional value (Si) corresponding to an actual position. The program generator (18) generates desiring positions (A-C) as positioning target values (Ss ). The quantity of electricity is determined by a controlling circuit (20) and the actual positioning value (Si) is kept almost equal to the target positioning values (Ss). Thus, a stopper for positioning the yarn guide (5) can be perfectly or partially omitted.
Description
The present invention relates to make by executing agency on the warp knitting machine a kind of device of thread-carrier location.This executing agency changes its shape under an amount of electrons effect.
On this device (DE4226899C1), executing agency is a piezoceramic bending transducer, and its end is clamped on the sley bar, and the other end is supporting thread-carrier.This transducer can occupy two and be equivalent to the distance in knitting needle gap and the position of being determined by block.Because thread-carrier tension force because of yarn in a working cycles might be subjected to loading in the horizontal, so thread-carrier is abutted on the block with enough pretensions, normally applies a corresponding big tension force.
In the older undocumented application (DE19651053.8) of portion, a thread-carrier that is carried by a flexible transducer can be regulated on three positions, and these three position distances each other equal two knitting needle gaps.Be held against a principle on the block here.For that position between placed in the middle is provided with some middle blocks, can work selectively for this purpose.
Block produces wear problem.In addition, if should should control two above positions, structural manufacturing cost is very high.
Task of the present invention provides that a kind of device of addressing of beginning, with all or part of ditch problem relevant with block of determining.
According to the present invention, the solution of this task is: by a measuring cell, send a position actual value that accords with the thread-carrier physical location; By a program transmitter, preestablish desired position as specified value of position; And by the adjustment loop that can stipulate the electric weight size, position actual value keeps being approximately equal to specified value of position.
According to said structure, the block of thread-carrier location usefulness can all or part ofly be cancelled.Desired position is able to very accurate maintenance, because very strong stopping power makes thread-carrier be fixed in desired position, so the interference effect of yarn tension can be ignored or compensate by corresponding correction electric parameters.Because warp knitting machine the highest 40 tasks that proceed to each second circulate, and yarn tension changes in the phase in each working cycles, thereby must also also change the tension force of yarn in practicality simultaneously with this understanding by predefined new regulation value change electric weight.The device that the present invention proposes promptly is this situation, because the data in the adjustment loop are handled not to be actually with delaying carries out.
Particularly advantageous is that measuring cell is placed in the executing agency and exports a position actual value that conforms to its actual form.The distortion of executing agency offers some clarification on the physical location of thread-carrier.On the other hand, be the additional interference that is not subjected to measuring cell through compiling woven extent itself.
Executing agency is a piezoelectric bending transducer preferably, and electric weight then is a control voltage.This executing agency has proved in the application it is reliable.
Recommendablely be, flexible transducer should be designed to strip shape, and the one end is clamped, and the other end is supporting thread-carrier.This known flexible transducer can not use block to position.
In addition, it then is favourable that flexible transducer has a layered part, this layered part has one first reference electrode, one first piezoceramics layer, a control electrode, one second piezoceramics layer and one second reference electrode, wherein first reference electrode provides a high reference voltage, second reference electrode provides a low reference voltage, and control electrode then provides one to be in two control voltages between the reference voltage.Approach high or low voltage on control voltage and decide, flexible transducer is towards a side or opposite side distortion.If control voltage is in the centre of high and low reference voltage, the centre position that then produces a stable flexible transducer.
Meaningfully, most piezoceramics layers are the intermediate layers that are in electrode each other stackedly; And the electrode aspect, first and second reference electrodes replace, and settle a control electrode betwixt; Piezoceramics layer between the reference electrode is opposed polarization in couples.Therefore under the voltage conditions that limits, obtain the stable expanding that also is able to take higher yarn tension.
Particularly advantageous is that measuring cell is a resistance strain gage that is placed on the flexible transducer.These resistance strain gage great majority are to change its Ohmic resistance along with the form of flexible transducer according to the work of Wheatstone bridge principle.The thickness that it amplifies flexible transducer is difficult to aware.Therefore most flexible transducers still are compact arranged mutually.
A kind of simple solution is, resistance strain gage pastes on the flexible transducer, and the connection lead under it is printed on the flexible transducer.
In addition, suggestion is aggregated into a sections with many flexible transducers, it is fixed on the sley bar and supply is connected with setting with voltage value by a plug-in type binding.A kind of like this structure makes the installation of warp knitting machine and maintenance work very convenient, because whole sections can connect and unclamps the back and take off and replace with a new sections from sley bar by unclamping plug-in type.
Mode is preferably, and sections is also supporting the evaluation and the control module of the regulating loop that is used for this sections flexible transducer.Between measuring circuit element and evaluation and control module, draw a very short line segment, even it is easy to use to disturbing responsive measuring-signal.
The present invention will be described in more detail for preferred embodiment below with reference to accompanying drawings.Accompanying drawing is represented:
Fig. 1 is according to a kind of positioner of the present invention;
Fig. 2 piezoceramic bending transducer partial schematic diagram;
Fig. 3 merges into a plurality of positioners of a sections.
The executing agency 1 of the piezoelectric bending transducer form of a condition sheet shape, the one end is clamped on the fixture 2 on the sley bar, and the other end carries a needle stand 4 of being furnished with the thread-carrier 5 of eye needle guide form by a connector 3.This eye needle guide can occupy three position A, B and C.
There is a layered part 6 in executing agency, and this layered part has 9, one second piezoceramics layers 10 of 8, one control electrodes of 7, one first piezoceramics layers of one first reference electrode and one second reference electrode 11.First reference electrode 7 provides a height with reference to voltage U by a wiring 12
OProvide low reference voltage U through two reference electrodes 11 by a wiring
U, and control electrode 9 provides the control voltage U by a wiring 14
S
A measuring circuit element 15 of resistance strain gage form is by the work of Wheatstone bridge principle, is adhered on the layered part 6.By a lead 16 that can be printed on the layered part, with position actual value S
ISend to an evaluation and control module 17, pass through also general specified value of position S at that time of an input 19 by program transmitter 18
SFlow to this control module.Common this unit is realized that by a microprocessor it sends the control voltage U
SMode make position actual value be similar to specified value of position.Therefore loop 20 is adjusted in one of total generation, can adjust desired three position A, B and C that are equivalent between the knitting needle space between a pin respectively with it.For example high with reference to voltage U from one
O=60V and low reference voltage U
U=OV sets out, then the typical case of position A to control voltage value be 9V, that position B is 30V, that position C is 51V.Control voltage has gap with an adjacent reference voltage on position A and C, this gap approximately is that 15% reference voltage is poor.So it requires this gap, be in order when occurring regulating deviation, to reset.
Because thread-carrier 5 can remain on any desired position, so also can control the position more than three.
According to embodiment shown in Figure 2, corresponding component adopts the label among this Fig. 1 to improve 100 label.Basic difference is that there are a plurality of piezoceramics layers 108 in executing agency 101,108a, and 108b ... with 110,110a, 110b ..., and electrode is all between some ceramic layers.Every an electrode reference electrode 107 is arranged promptly, 107a ..., 111,111a ..., first and second reference electrodes replace here.A control electrode 109 is arranged respectively therebetween, 109a, 109b ...Arrow P 1 and P2 indicate the polarised direction of each piezoceramics layer respectively.All first electrodes all link to each other with wiring 112, and all second electrodes all link to each other with wiring 113, and all control electrodes all link to each other with wiring 114.Be very strong clamping force in such a way.
16 to 20 piezoceramics layers can be set in executing agency 101 especially, and every layer thickness is approximately 60 μ m.Because general control voltage gradient is 1000V, thereby a control voltage is approximately 60V.
This multilayer flexible transducer can be made like this, and this prints top electrode, and be laminated to each other as producing piezoceramics layer with dry ceramic material, carries out sintering then.
Fig. 3 shows a sections 22, and it is carrying the fixture 2 that is used for a plurality of executing agencies 1, and can be used as an overall fixed on the sley bar 23 of a warp knitting machine.The executing agency that on this sections, also is mounted with evaluation and control module 17 and is kept by sections 22.First reference electrode of all flexible transducers is to connect with wiring 12, and second reference electrode of all flexible transducers is to connect with wiring 13.24 of inserted sleeve comprises and is used for wiring 12 and 13 and the plug that is used for the input 19 of the evaluation of each executing agency 1 and control module.
Do not leaving under the basic conception situation of the present invention, the foregoing description can change from many aspects to some extent.For example two terminal locations can be determined with block, only one or more centre positions are determined by the present invention.The measuring circuit element that also can adopt other is as above-mentioned resistance strain gage.For example available such voltage is as measured value, and this voltage is that existing or additional piezoelectric layer is produced by one when being out of shape in executing agency.
Claims (10)
1. realize the device of thread-carrier location on the warp knitting machine with an executing agency, its executing agency changes its shape under the effect of an amount of electrons, it is characterized in that; It has a measuring circuit element (15), sends a position actual value (S who accords with the physical location of thread-carrier (5)
i); Executing agency also has a program transmitter (18), and transmitter preestablishes desired position as specified value of position (S
s), executing agency also has the adjustment loop (20) of an energy regulation electric weight size, and this loop makes position actual value (S
i) roughly keep being equal to specified value of position (S
s).
2. according to the device described in the claim 1, it is characterized in that: measuring circuit element (15) is placed in executing agency (1) and goes up and send a position actual value (S who accords with its true form
i).
3. according to the device described in claim 1 or 2, it is characterized in that: executing agency (1) is a piezoelectric bending transducer, and electric weight is a control voltage (U
S).
4. according to the device described in the claim 3, it is characterized in that: flexible transducer is designed to strip shape, and the one end is clamped, and the other end is carrying thread-carrier (5).
5. according to the device described in claim 3 or 4, it is characterized in that: flexible transducer has a layered part (6), this layered part has one first piezoceramics layer (8), one first reference electrode (7), a control electrode (9), one second piezoceramics layer (10) and one second reference electrode (11), wherein first reference electrode (7) provides a high reference voltage (U
O), second reference electrode (11; 111) provide a low reference voltage (U
U), and control electrode (9; 109) provide one to be in two control voltage (U between the reference voltage
S).
6. according to the device described in of claim 3 to 5, it is characterized in that; A plurality of piezoceramics layers (108,108a, 108b; 110,110a, 110b) between electrode, overlapped; Aspect electrode, first and second reference electrodes (107,107a, 111,111a) be alternately and settle therebetween respectively a control electrode (109,109a, 109b); Piezoceramics layer between the reference electrode (108,108a, 108b; 110,110a 110b) is opposed in couples polarization.
7. according to the device described in one of claim 3 to 6, it is characterized in that: measuring circuit element (15) is a resistance strain gage that is placed on the flexible transducer.
8. according to the device described in the claim 7, it is characterized in that: resistance strain gage pastes on the flexible transducer, and affiliated connection lead (16) is to be printed on the flexible transducer.
9. according to the device described in one of claim 1 to 8, it is characterized in that: a plurality of flexible transducers are aggregated into a sections (22), and it is fixed on a sley bar (23), and upward and by an inserted sleeve (24) part supply is connected with setting with voltage value.
10. according to the device described in the claim 9, it is characterized in that: sections (22) also carries the evaluation and the control module (17) of the regulating loop (20) of the flexible transducer that is used for this sections.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19821845A DE19821845C2 (en) | 1998-05-15 | 1998-05-15 | Device on warp knitting machines for positioning a thread guide |
| DE19821845.1 | 1998-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236032A true CN1236032A (en) | 1999-11-24 |
| CN1101489C CN1101489C (en) | 2003-02-12 |
Family
ID=7867890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99106703A Expired - Fee Related CN1101489C (en) | 1998-05-15 | 1999-05-14 | Feeder stop device on warp knitting machine |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP3010048B2 (en) |
| KR (1) | KR100292575B1 (en) |
| CN (1) | CN1101489C (en) |
| CH (1) | CH693826A5 (en) |
| DE (1) | DE19821845C2 (en) |
| FR (1) | FR2778675B1 (en) |
| IT (1) | IT1308489B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920146B (en) * | 2005-08-23 | 2010-06-23 | 昆山攀特电陶科技有限公司 | Carding structure of needle selecting equipment |
| CN101457443B (en) * | 2008-09-27 | 2011-10-05 | 常州市润源经编机械有限公司 | warp knitting machine comb guide |
| CN102587025A (en) * | 2012-03-15 | 2012-07-18 | 东华大学 | Piezoelectric swing yarn guide needle device for double-needle-bed tricot machine |
| CN102587026A (en) * | 2012-03-15 | 2012-07-18 | 东华大学 | Electromagnetic swing yarn guide needle device used for double-needle-bed warp knitting machine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497869B1 (en) * | 2002-12-12 | 2005-06-29 | 이창호 | The automatic controlled yarn guide of knitting machine |
| IT1391728B1 (en) * | 2008-11-26 | 2012-01-27 | Santoni & C Spa | PIEZOELECTRIC ACTUATOR FOR LEAD GUIDES JACQUARD OF TEXTILE MACHINES |
| CN112877896B (en) * | 2020-12-31 | 2022-10-25 | 福建宏宇电子科技有限公司 | Jacquard device and warp knitting machine |
| CN113718421B (en) * | 2021-08-17 | 2022-12-20 | 福建杰嘉科技有限公司 | Piezoelectric ceramic wireless jacquard guide bar and warp knitting machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3734072A1 (en) * | 1987-10-08 | 1989-04-27 | Liba Maschf | CHAINING MACHINE WITH ADJUSTABLE STEPPING MOTORS |
| DE4226899C1 (en) * | 1992-08-14 | 1994-01-13 | Mayer Textilmaschf | Warp knitting machine with jacquard control |
| DE4414876C2 (en) | 1994-04-28 | 1996-05-30 | Mayer Textilmaschf | Process for producing a warp knitted fabric, warp knitting machine for carrying out this process and warp knitted fabric |
| DE4418714C1 (en) * | 1994-05-28 | 1995-06-22 | Mayer Textilmaschf | Warp knitting machine guide bar with piezoelectric needle deflectors |
| DE4442555C2 (en) | 1994-11-30 | 1997-03-13 | Mayer Textilmaschf | Warp knitting machine |
| DE69608369T2 (en) * | 1995-01-19 | 2001-02-01 | Nippon Mayer Co., Ltd. | PATTERN DEVICE FOR CHAIN KNITTING MACHINES AND METHOD THEREFOR |
| GB9605059D0 (en) * | 1996-03-09 | 1996-05-08 | Palmer Raymond L | Drive system |
| DE19651053C1 (en) * | 1996-12-09 | 1998-06-10 | Mayer Textilmaschf | Warp knitting machine with jacquard bar |
-
1998
- 1998-05-15 DE DE19821845A patent/DE19821845C2/en not_active Expired - Fee Related
-
1999
- 1999-04-08 KR KR1019990012270A patent/KR100292575B1/en not_active Expired - Fee Related
- 1999-05-12 FR FR9906086A patent/FR2778675B1/en not_active Expired - Fee Related
- 1999-05-13 JP JP11132300A patent/JP3010048B2/en not_active Expired - Fee Related
- 1999-05-14 CN CN99106703A patent/CN1101489C/en not_active Expired - Fee Related
- 1999-05-14 IT IT1999TO000400A patent/IT1308489B1/en active
- 1999-05-14 CH CH00917/99A patent/CH693826A5/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1920146B (en) * | 2005-08-23 | 2010-06-23 | 昆山攀特电陶科技有限公司 | Carding structure of needle selecting equipment |
| CN101457443B (en) * | 2008-09-27 | 2011-10-05 | 常州市润源经编机械有限公司 | warp knitting machine comb guide |
| CN102587025A (en) * | 2012-03-15 | 2012-07-18 | 东华大学 | Piezoelectric swing yarn guide needle device for double-needle-bed tricot machine |
| CN102587026A (en) * | 2012-03-15 | 2012-07-18 | 东华大学 | Electromagnetic swing yarn guide needle device used for double-needle-bed warp knitting machine |
| CN102587026B (en) * | 2012-03-15 | 2013-12-11 | 东华大学 | Electromagnetic swing yarn guide needle device used for double-needle-bed warp knitting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19821845A1 (en) | 1999-11-18 |
| CH693826A5 (en) | 2004-02-27 |
| KR19990087895A (en) | 1999-12-27 |
| JP3010048B2 (en) | 2000-02-14 |
| CN1101489C (en) | 2003-02-12 |
| ITTO990400A1 (en) | 2000-11-14 |
| KR100292575B1 (en) | 2001-06-15 |
| JPH11335950A (en) | 1999-12-07 |
| FR2778675A1 (en) | 1999-11-19 |
| DE19821845C2 (en) | 2000-05-04 |
| FR2778675B1 (en) | 2001-07-27 |
| ITTO990400A0 (en) | 1999-05-14 |
| IT1308489B1 (en) | 2001-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030212 Termination date: 20100514 |