CN107938141A - The knitting-needle device and its control method of electromagnetic array driving - Google Patents
The knitting-needle device and its control method of electromagnetic array driving Download PDFInfo
- Publication number
- CN107938141A CN107938141A CN201711340386.0A CN201711340386A CN107938141A CN 107938141 A CN107938141 A CN 107938141A CN 201711340386 A CN201711340386 A CN 201711340386A CN 107938141 A CN107938141 A CN 107938141A
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- Prior art keywords
- needle
- knitting
- electromagnetic
- permanent magnet
- electromagnet
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/665—Driving-gear for programme or pattern devices
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
- D04B15/78—Electrical devices
Abstract
The invention discloses the knitting-needle device and its control method of a kind of driving of electromagnetic array, the bottom of needle guard is detachably connected with needle stand, permanent magnetism housing is installed in needle guard, permanent magnet is connected with upper permanent magnetism housing, electromagnet skeleton is installed in needle guard, immediately below upper permanent magnetism housing, even number electromagnetic wand is uniformly installed along the circumferential direction of electromagnet skeleton, the connection in series-parallel of even number electromagnetic wand combines composition electromagnet arrays；Lower permanent magnetism housing is installed in needle guard, immediately below electromagnet skeleton, lower permanent magnet is connected with lower permanent magnetism housing, needle body is installed in needle guard, the lower end of needle body sequentially pass through permanent magnetism housing, upper permanent magnet, electromagnet skeleton, lower permanent magnet center after be threadedly coupled with the center of lower permanent magnetism housing, needle body is threadedly coupled with the center of upper permanent magnetism housing.The problem of present invention solves the magnetic field of electromagnetic coil in the prior art or magnetic energy utilization rate is low, and the size of knitting equipment is big, and driving energy consumption is big.
Description
Technical field
The invention belongs to textile equipment technical field, is related to a kind of knitting-needle device and its controlling party of electromagnetic array driving
Method.
Background technology
At present, the electronic needle selecting device of knitting computer jacquard circular knitting machine mainly has electromagnetic type and piezoelectric type both at home and abroad, they
Needle selection is realized using component of machine such as triangular cam, pattern bit, needle jacks.Since knitting needle is next by the contact with triangular cam
Realize that braiding movement, knitting mechanism cause impact friction and lateral force there are triangular cam to knitting needle up and down.As knitting machine turns
Fast (in 15-20rpm or so as computer jacquard circular knitting machine, needle-selecting blade frequency is in 100Hz) is higher and higher, to knitting needle and
The performance requirement higher of triangular cam, when knitting needle and triangular cam intensity in itself, wearability are when having reached extreme degree, just
Limit further improving for rotating speed.According to statistics, at present both at home and abroad enterprise be mainly concentrate on knitting needle material wear ability,
Heat treatment process and knitting needle external form details Curve guide impeller etc., without carrying out any change to knitting needle driving principle and its structure
Become.
1 (application number of the prior art：201110098202.0 title：Magnetic suspension drives knitting needle method for selecting needle and device, public
Open day：On November 16th, 2011), disclosed magnetic suspension driving knitting needle needle selection installation cost is high, and (knitting needle structure is less than normal, therefore all
Part processing precision, manufacture require higher), it is complicated；Unicoil driving axial magnetic suspension mode, driving force are less than normal；Three
In level " inner ring, mesosphere and outer ring " structure, outer ring is not easy to replace with inner ring knitting needle；Top lacks limiting device, can not be in height
Specified station is rapidly reached in speed weaving, overall work frequency is relatively low.
2 (application number of the prior art：201510089570.7 title：A kind of electromagnetic drive knitting needle needle selection device, publication date：
On June 24th, 2015), although disclosed electromagnetic drive knitting needle needle selection device overcomes some shortcomings in the prior art 1, still
The electromagnetic coil manufacture difficulty of processing of sunk skeleton is big, when knitting needle structure size continues to reduce, sunk skeleton part
Several reductions are pounded in coil winding, can not provide enough electromagnetic driving forces；Although driven using double electromagnetic coils, compared with the prior art 1
Electromagnetic driving force is improved, but the magnetic field of electromagnetic coil or magnetic energy utilization rate are low, because the magnetic field of each electromagnetic coil only utilizes
The magnetic field of one end face, causes the structure size of the knitting equipment under suitable driving trip longer, pin moves direction of motion length
Including：Lower electromagnetic coil height, needle stroke space length, upper electromagnetic coil height and needle body upper end are oriented to stroke；Wherein
Needle body upper end, which is oriented to stroke, needs longer dimension just to can guarantee that guiding requires, and such a structure is unfavorable for knitting needle miniaturization.Single electricity
Magnetic coil is in order to provide enough driving forces, and size is larger (outside diameter 18mm, internal diameter 8mm, high 12mm) at present, driving energy consumption compared with
Greatly, fever is obvious, and energy consumption is higher.
The content of the invention
To solve the above problems, the present invention provides a kind of knitting-needle device of electromagnetic array driving, solve in the prior art
The problem of magnetic field of electromagnetic coil or magnetic energy utilization rate are low, and the size of knitting equipment is big, and driving energy consumption is big.
It is another object of the invention to provide a kind of control method of the knitting-needle device of electromagnetic array driving.
The technical solution adopted in the present invention is a kind of knitting-needle device of electromagnetic array driving, including needle guard, the bottom of needle guard
Portion is detachably connected with needle stand, and permanent magnetism housing is provided with needle guard, is connected with permanent magnet in upper permanent magnetism housing, in needle guard,
Electromagnet skeleton is installed, electromagnet skeleton is hollow circular cylinder, along electromagnet skeleton immediately below upper permanent magnetism housing
Circumferential to be uniformly provided with even number electromagnetic wand, even number electromagnetic wand combines composition electromagnet arrays；In needle guard, electromagnet skeleton
Underface is provided with lower permanent magnetism housing, and lower permanent magnet is provided with lower permanent magnetism housing, and upper permanent magnet, the magnetic pole of lower permanent magnet are
Distribution up and down, and upper permanent magnet is opposite with the magnetic direction of lower permanent magnet；Needle body is installed, the upper end of needle body is knitting needle in needle guard
Head, knitting needle head stretch out needle guard, and the lower end of needle body sequentially passes through permanent magnetism housing, upper permanent magnet, electromagnet skeleton, lower permanent magnet
Center behind center with lower permanent magnetism housing is threadedly coupled, and needle body is threadedly coupled with the center of upper permanent magnetism housing.
The present invention is further characterized in that further, the quantity of the electromagnetic wand is 4,6,8 or 12, mutually not
The coil series connection of the electromagnetic wand of adjacent half quantity, the coil series connection of the electromagnetic wand of the other half quantity, two parts series coil
It is connected after parallel connection with power supply.
Further, the outside diameter of the needle body is less than the internal diameter of electromagnet skeleton.
Further, the bottom of the needle guard is detachably connected by straight pin screw with needle stand, straight pin screw and pin
Backing-up screw is connected between set.
Further, the electromagnet skeleton is connected by fastening stud with needle guard.
Another technical solution of the present invention is a kind of control method of the knitting-needle device of electromagnetic array driving, tool
Body follows the steps below：The coil of the electromagnet arrays of knitting needle uses external digital duty cycle type of drive, and each piece is knitted
The coil of the electromagnet arrays of pin is controlled by an independent PWM ripples drive circuit, complete by adjusting output signal dutyfactor
Electromagnetic force into electromagnet arrays is adjusted；According to weaving, middle transition state is added, when knitting needle completes knocking over or lopping
Afterwards, the output of PWM ripples is adjusted to transition state, maintains flotation line action.
Further, the output power of the PWM ripples transition state is the 40% of fully loaded output power.
The invention has the advantages that compared with prior art, the present invention has the following advantages：
1st, twin coil driving device is replaced using electromagnet arrays, is improved in the case where driving trip is identical with driving force
Nearly 1 times of electromagnetic field utilization rate, reduces design size, and the height of knitting equipment reduces 30-40%.
2nd, electromagnetic array uses external digital duty cycle type of drive, using the PWM ripple driving methods after optimization, in knitting needle
After reaching Upper-lower Limit position, adjustment PWM ripples are exported to the 40% of fully loaded output, in the case where completing weaving requirement
Greatly reduce operating power consumption.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the embodiment of the present invention.
Fig. 2 is the structure diagram of electromagnet arrays in the embodiment of the present invention.
Fig. 3 is the knitting needle of the embodiment of the present invention in 250mA driving currents lower stress and displacement relation figure.
Fig. 4 is the electromagnetic wand distribution schematic diagram of electromagnet arrays in the embodiment of the present invention.
Fig. 5 is the coil catenation principle figure of electromagnetic wand in the embodiment of the present invention.
Fig. 6 is that the magnetic pole distribution of the upper permanent magnet, lower permanent magnet, electromagnet arrays of uplink process in the embodiment of the present invention is shown
It is intended to.
Fig. 7 is that the distribution of the upper permanent magnet, lower permanent magnet pole, electromagnet arrays of downlink process in the embodiment of the present invention is shown
It is intended to.
In figure, 1. needle stands, 2. needle guards, 3. needle bodies, permanent magnetism housing on 4., permanent magnet on 5., 6. electromagnet skeletons, 7. electromagnetism
Volume array, 8. fastening studs, 9. times permanent magnets, 10. times permanent magnetism housings, 11. straight pin screws, 12. backing-up screws, 13. electromagnetism
Rod.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.It should be appreciated that the embodiment
The present invention is merely to illustrate, rather than is limited the scope of the invention.In addition, it should also be understood that, reading of the invention describe
After content, those skilled in the art can make the present invention various changes or modification, and such equivalent forms equally fall within this Shen
The protection domain please limited.
The structure of the embodiment of the present invention, as shown in Figs. 1-2, the bottom of needle guard 2 are removable by straight pin screw 11 and needle stand 1
Unload connection, backing-up screw 12 be connected between straight pin screw 11 and needle guard 2, permanent magnetism housing 4 is installed in needle guard 2, on forever
Permanent magnet 5 is connected with magnet holder 4, the underface of interior, the upper permanent magnetism housing 4 of needle guard 2 is provided with electromagnet skeleton 6, electromagnet
Skeleton 6 is connected by fastening stud 8 with needle guard 2, and electromagnet skeleton 6 is hollow circular cylinder, along the circumferential direction of electromagnet skeleton 6
Even number electromagnetic wand 13 is uniformly installed, 13 connection in series-parallel of even number electromagnetic wand combines composition electromagnet arrays 7；Needle guard 2 is interior, electromagnetism
The underface of body skeleton 6 is provided with lower permanent magnetism housing 10, is connected with lower permanent magnet 9 in lower permanent magnetism housing 10, upper permanent magnet 5, under
The magnetic pole of permanent magnet 9 is distribution, and upper permanent magnet 5 is opposite with the magnetic direction of lower permanent magnet 9 up and down；It is provided with needle guard 2
Needle body 3, the upper end of needle body 3 is knitting needle head, and knitting needle head stretches out the upper end of needle guard 2, and the lower end of needle body 3 sequentially passes through permanent magnetism housing
4th, the center behind the center of upper permanent magnet 5, electromagnet skeleton 6, lower permanent magnet 9 with lower permanent magnetism housing 10 is threadedly coupled, needle body 3 with
The center of upper permanent magnetism housing 4 is threadedly coupled, for being connected upper permanent magnet 5, lower permanent magnet 9 with the needle body 3 of knitting needle and completing axis
To positioning, and the axial location of the internal thread of upper permanent magnetism housing 4 and the upper permanent magnet 5 of external screw thread adjustment of needle body 3 can be utilized, together
Reason also can adjust the axial location of lower permanent magnet 9；The outside diameter of needle body 3 is less than the internal diameter of electromagnet skeleton 6, and electromagnet skeleton 6 is used
In guiding needle body 3.Upper permanent magnetism housing 4 is fixedly connected with upper permanent magnet 5 using cementation method, lower permanent magnetism housing 10 and lower permanent magnet
9 are fixedly connected using cementation method.
Design runlength 15mm, knitting needle electromagnetic force is not less than 60CN in the range of stroke, specifically, electromagnet skeleton 6 is outer
Footpath 10mm, internal diameter 5mm, height 15mm, magnetic core outside diameter 1.8mm, the height 17mm of electromagnetic wand 13, the coil outer diameter of electromagnetic wand 13
2.5mm, internal diameter 1.8mm, height 15mm.
Multiple 13 connection in series-parallel of electromagnetic wand combine composition electromagnet arrays 7, and the quantity of electromagnetic wand 13 is 4,6,8 or 12
It is a, the coil series connection of the electromagnetic wand 13 of mutual non-conterminous half quantity, the coil series connection of the electromagnetic wand 13 of the other half quantity, two
It is connected after dividing series coil parallel connection with power supply；But the size that just present invention finally calculates, is limited by 6 inside and outside footpath of electromagnet skeleton
System, 4 or 6 electromagnetic wands can not provide the electromagnetic force of design requirement, and 12 and above electromagnetic wand size need to continue to zoom out,
Installation difficulty and technical costs can be increased on the basis of design requirement electromagnetic drive by reaching, therefore 8 electromagnetism are installed in embodiment
Rod 13；Due to adjusting electromagnetic driving force using PWM wave number word drive modes, but due to the impedance operator of electromagnetic coil, if
All series windings, then rear class coil electromagnetism driving force, which weakens, is unable to reach Expected Results；Coil is finally equivalent if all parallel connections
Resistance value is too small, also can not driven, therefore 8 electromagnetic wands 13 using connection in series-parallel combination by the way of meet driving force output will
Ask；As illustrated in figures 4-5, the quantity of electromagnetic wand 13 is 8, electromagnetic wand 13 counterclockwise number consecutively for I, D, II, A, III,
B, IV, C, No. I, No. II, No. III, No. IV electromagnetic wand 13 connect, No. A, No. B, No. C, D electromagnetic wands 13 connect, two parts series connection
It is connected after coils from parallel connection of coils with power supply.
The magnetic pole of upper permanent magnet 5 and lower permanent magnet 9 is distribution, and upper permanent magnet 5 and lower 9 position of magnetic pole of permanent magnet up and down
Conversely；Specifically as shown in fig. 6-7, the upper end of upper permanent magnet 5 is S poles, and the lower end of upper permanent magnet 5 is N poles, lower permanent magnet 9 it is upper
Hold as N poles, the lower end of lower permanent magnet 9 is S poles；Or the upper end of upper permanent magnet 5 is N poles, the lower end of upper permanent magnet 5 is S poles, under
The upper end of permanent magnet 9 is S poles, and the lower end of lower permanent magnet 9 is N poles；Change electromagnetism by varying current direction in electromagnet arrays 7
N poles, the S poles of body, and then drive needle body to be run about 3.
The prior art 2 in background technology is big using the electromagnetic coil manufacture difficulty of processing of sunk skeleton, when knitting needle is set
When standby size continues to reduce, several reductions are pounded in the coil winding of sunk skeleton part, can not provide enough electromagnetic driving forces；
If electromagnet outer diameter D=18mm, permanent magnet outside diameter d=12mm, skeleton sunk part can coiling size c=3mm, press
Line footpath 0.25mm, can pound around 12, then subtract the thickness of electromagnetic coil skeleton in itself, then skeleton sunk part can coiling pound number
It will continue to reduce.The present invention uses electromagnetic wand 13, and equivalent to one standardized element of electromagnetic wand 13 is convenient to design, is customized, installing,
The coil of each electromagnetic wand 13 pounds that number is consistent, size is consistent, and the coil of each electromagnetic wand 13 is fixed on pcb board by certain requirement
On, easy to line and installation, reduce manufacture and installation difficulty.
The effective magnetic field space of electromagnet A both ends of the surface driving permanent magnet is field A and field A ' domains；Electromagnet B both ends of the surface drive
The effective magnetic field space of permanent magnet is field B and field B ' domains, and the prior art 2 is driven using the field B of the field A ' and electromagnet B of electromagnet A
Dynamic permanent magnet knitting needle；The magnetic field of i.e. each electromagnetic coil only make use of the magnetic field of an end face, the magnetic field of electromagnetic coil or magnetic energy
Utilization rate is low, causes, in identical driving trip lower structure longer dimension, to be unfavorable for the miniaturization of knitting equipment；The present invention uses upper
Permanent magnet 5 and lower permanent magnet 9 driving needle body 3, utilize field A and the field A ' regions of electromagnet arrays 7, the magnetic field utilization rate of electromagnet
Double, can effective shortening structure size under identical driving trip；Due to there was only an electromagnet arrays 7, knitting equipment
Height reduce 30-40%.
2 single electromagnetic coil of the prior art is in order to provide enough driving forces, size larger (outside diameter 18mm, internal diameter at present
8mm, high 12mm), single coil internal resistance is 25 Europe, about 50 Europe of the total internal resistance of twin coil driven in series, the energy under the driving voltage of 12V
Meet driving force requirement, full load power consumption 12 × 12/50=2.88W ≈ 3W；Drive energy consumption larger, fever is obvious.The present invention adopts
It is driven with standard electromagnetic wand by the way of connection in series-parallel combination, about 12 Europe of internal resistance of each electromagnetic wand 13, in the drive of 7.5V
Meet the requirement of driving force, 7.5 × 7.5/24=2.34W of full load power consumption under dynamic voltage；(2.88- is reduced than the prior art 2
2.34/2.88=) 18.75% energy consumption.
This programme and the energy consumption ratio of technology 2 are：(3W-1.8W)/3W=60%, i.e., the present invention is compared with the prior art 2, work(
Consumption reduces by 40%.
The control method of the knitting-needle device of electromagnetic array driving of the present invention, specifically carries out according to the following steps：The electromagnetism of knitting needle
The coil of volume array 7 uses external digital duty cycle type of drive, and the coil of the electromagnet arrays 7 of each piece of knitting needle is by one
Independent PWM ripples drive circuit control, realizes the independent control of every piece of knitting needle, and the braiding for completing knitting needle by controlling continuous device processed is moved
Make；The electromagnetic force that electromagnet arrays 7 are completed by adjusting output signal dutyfactor is adjusted；The mistake of centre is added according to weaving
State is crossed, after knitting needle completes knocking over or lopping, the output of PWM ripples is adjusted to transition state, maintains flotation line action, PWM ripple mistakes
The output power for crossing state is the 40% of fully loaded output power.
The driving method of electromagnetic coil has digital quantity control method and Analog control method.The former uses fixed voltage,
Controlled using PWM mode, the adjusting of electromagnetic force is completed by adjusting signal dutyfactor；The latter is adjusted defeated using analog circuit
Enter the size of voltage or electric current to change electromagnetic force.The former governing response frequency is high, and the latter is limited by the response of AD adjusts frequency
It is complicated less than the former and circuit, be not suitable for the control requirement that up to a hundred pieces of knitting needles in field of the present invention are operated alone.
Electromagnet arrays 7 use external digital duty cycle type of drive, from Fig. 3 curve can be seen that needle body 3 it is upper,
At lower limit position, upper permanent magnet 5 or lower permanent magnet 9 and electromagnetic array 7 interval are reduced to 1mm, and electromagnetic force is anxious away from increase, this
When complete weaving require (60-120mN driving forces), equivalent driving current can be reduced, that is, turn down driving PWM duty cycle.
The present invention in non-lopping and knocking over state, is exported using flotation line mode and entirely knitted so as to reduce according to technological requirement
The energy consumption of pin.I.e. the prior art 2 is exported (positive, negative sense is fully loaded with) by two work(positions, and PWM outputs concentrate on positive maximum output with bearing
To maximum output；And the present invention is by the output of three work(positions (forward direction is fully loaded, negative sense is fully loaded with and flotation line output), according to technological requirement,
Transition output is added, the wherein lopping time accounts for 25%, and the flotation line time accounts for 50%, and the knocking over time accounts for 25%, can at most reduce list
The 50% of knitting needle energy consumption；At 3 Upper-lower Limit operating position of needle body, driver is according to the feedback signal of knitting needle position sensor
Carry out output adjusting, automatic adjustment driving PWM ripples to the 50% of maximum.
Full load power consumption 12 × 12/50=2.88W ≈ 3W of the prior art 2；Full load power consumption 7.5 × 7.5/24 of the present invention
=2.34W, so-called fully loaded power consumption are so that knitting needle works in highest order or lowest order, driving load when driving force is maximum；It is full
PWM ripples output valve is maximum under load condition, during using external digital duty cycle type of drive, according among weaving design
Transition state, after knitting needle completes knocking over (highest order) or lopping (lowest order), avoids the need for maintaining full load condition always, can incite somebody to action
The output of PWM ripples adjusts to the 40% of fully loaded output and flotation line can be maintained to act, therefore flotation line action output power=full-load power
× 40%, and can regard lopping output time as by the braid movement process that weaving is completed and account for 25%, knocking over output time accounts for
25%, flotation line output time accounts for 50%, therefore the knitting needle average energy consumption of the present invention is：Full-load power × 50%+ full-load powers ×
40% × 50%=full-load powers × 75%=2.34W × 75%=1.755W, about 1.8W, greatly reduces operating power consumption.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (7)
- A kind of 1. knitting-needle device of electromagnetic array driving, it is characterised in that including needle guard (2), the bottom of needle guard (2) and needle stand (1) it is detachably connected, permanent magnetism housing (4) is installed in needle guard (2), permanent magnet (5) is connected with upper permanent magnetism housing (4), Electromagnet skeleton (6) is installed in needle guard (2), immediately below upper permanent magnetism housing (4), electromagnet skeleton (6) is hollow annular Cylinder, is uniformly provided with even number electromagnetic wand (13), even number electromagnetic wand (13) combines composition along the circumferential direction of electromagnet skeleton (6) Electromagnet arrays (7)；Lower permanent magnetism housing (10), lower permanent magnetism housing are installed in needle guard (2), immediately below electromagnet skeleton (6) (10) lower permanent magnet (9) is provided with, upper permanent magnet (5), the magnetic pole of lower permanent magnet (9) are distribution, and upper permanent magnet up and down (5) it is opposite with the magnetic direction of lower permanent magnet (9)；Needle body (3) is installed in needle guard (2), the upper end of needle body (3) is knitting needle head, Knitting needle head stretches out needle guard (2), and the lower end of needle body (3) sequentially passes through permanent magnetism housing (4), upper permanent magnet (5), electromagnet skeleton (6), it is threadedly coupled behind the center of lower permanent magnet (9) with the center of lower permanent magnetism housing (10), needle body (3) and upper permanent magnetism housing (4) Center be threadedly coupled.
- A kind of 2. knitting-needle device of electromagnetic array driving according to claim 1, it is characterised in that the electromagnetic wand (13) Quantity be 4,6,8 or 12, the coil series connection of the electromagnetic wand (13) of mutual non-conterminous half quantity, the other half quantity Electromagnetic wand (13) coil series connection, be connected after two parts series coil parallel connection with power supply.
- 3. the knitting-needle device of a kind of electromagnetic array driving according to claim 1, it is characterised in that the needle body (3) Outside diameter is less than the internal diameter of electromagnet skeleton (6).
- 4. the knitting-needle device of a kind of electromagnetic array driving according to claim 1, it is characterised in that the needle guard (2) Bottom is detachably connected by straight pin screw (11) and needle stand (1), is connected between straight pin screw (11) and needle guard (2) anti- Loose screw (12).
- A kind of 5. knitting-needle device of electromagnetic array driving according to claim 1, it is characterised in that the electromagnet skeleton (6) it is connected by fastening stud (8) with needle guard (2).
- 6. such as a kind of control method of the knitting-needle device of electromagnetic array driving of claim 1-5 any one of them, its feature exists In specifically following the steps below：The coil of the electromagnet arrays (7) of knitting needle uses external digital duty cycle type of drive, The coil of the electromagnet arrays (7) of each piece of knitting needle is controlled by an independent PWM ripples drive circuit, by adjusting output letter The electromagnetic force that number duty cycle completes electromagnet arrays (7) is adjusted；According to weaving, the transition state of centre is added, works as knitting needle After completing knocking over or lopping, the output of PWM ripples is adjusted to transition state, maintains flotation line action.
- 7. the control method of the knitting-needle device of a kind of electromagnetic array driving according to claim 6, it is characterised in that described The output power of PWM ripple transition states is the 40% of fully loaded output power.
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| CN201711340386.0A CN107938141B (en) | 2017-12-14 | 2017-12-14 | The knitting-needle device and its control method of electromagnetic array driving |
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| CN110029440A (en) * | 2019-04-16 | 2019-07-19 | 江苏明朗星新能源科技发展有限公司 | It is able to achieve the latch needles control assembly individually controlled |
| CN110989395A (en) * | 2019-11-18 | 2020-04-10 | 武汉纺织大学 | Electromagnetic-permanent magnet coupling driving knitting needle magnetic field simulation system and simulation method |
| CN111691056A (en) * | 2020-05-15 | 2020-09-22 | 武汉纺织大学 | Electromagnetic array type driving device of knitting needle flat knitting machine and control method thereof |
| CN112410991A (en) * | 2020-12-07 | 2021-02-26 | 烟台缇绮羊绒制品有限公司 | Electromagnetic looping controller of cotton sock machine |
| CN112877890A (en) * | 2021-01-07 | 2021-06-01 | 武汉纺织大学 | Tubular magnetic suspension knitting needle device and driving method thereof |
| CN115125662A (en) * | 2022-08-02 | 2022-09-30 | 浙江恒强科技股份有限公司 | Matrix type driving needle selection method of glove knitting machine |
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