CN104695064B - A kind of lap feeding carding machine autoleveller method - Google Patents
A kind of lap feeding carding machine autoleveller method Download PDFInfo
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- CN104695064B CN104695064B CN201410331549.9A CN201410331549A CN104695064B CN 104695064 B CN104695064 B CN 104695064B CN 201410331549 A CN201410331549 A CN 201410331549A CN 104695064 B CN104695064 B CN 104695064B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/40—Feeding apparatus
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
Abstract
The invention provides a kind of lap feeding carding machine autoleveller method, including cotton layer thickness detection module, doffing speed measurement module, man machine interface interactive module and the Homogeneous assay method device being connected with above-mentioned module, it is characterized in that: present invention additionally comprises to cotton speed measuring module, the cotton layer length accumulation module of feeding, the cotton layer length vs's module of feeding, standard cotton layer thickness more new module.Its advantage: whole lap length is divided into m interval, wherein, each interval is divided into again the segmentation of j a length of Δ l, as a example by the n-th interval, the cotton layer average thickness that will detect in the n-th 1 intervalsStandard cotton layer thickness h as the n-th interval cotton layer Homogeneous assay methodbControl to cotton speed；By that analogy, the cotton layer average thickness that will detect in the n-th intervalStandard cotton layer thickness h as the (n+1)th interval cotton layer Homogeneous assay methodbControl, to cotton speed, the concrete condition that the present invention feeds according to lap, to periodically update standard cotton layer thickness, the final shaping weight unevenness ensureing lap feeding carding machine.
Description
Technical field
The present invention relates to a kind of neat and well spaced method, a kind of lap feeding carding machine autoleveller method.
Background technology
At present, carding machine evereven aspect density (the cotton layer fibre weight of unit cotton layer length) cotton to feeding
Detection be to realize by measuring the cotton layer thickness under certain process stage.Even device is detecting cotton layer
After surface density, regulate the feeding speed of cotton layer according to the surface density that cotton layer is current, thus in guarantor unit's time
The cotton layer fibre weight of feeding carding machine is constant, i.e. the shaping constant weight of carding machine.Namely meet following relationship.
ρ whv=c
Wherein ρ wh describes the surface density of the cotton layer of carding machine feeding, and ρ whv describes feeding comb in the unit interval
The cotton layer fibre weight of cotton machine, c represents that steady state value, ρ represent that, by the density compressing cotton layer, h represents by compressing cotton
The detection thickness of layer, w represents by the transverse width compressing cotton layer, carding machine board size determines, keeps
Constant, v represents by the feeding speed compressing cotton layer.
In Blowing carding or hopper feed carding machine, cotton layer loose, compaction rate is basically identical, in feeding
After pressurizeing to cotton feeding roller of carding machine position, the ρ of above-mentioned formula keeps constant, i.e. carding machine feeds cotton layer
Surface density with detect that cotton layer thickness exists linear relationship, i.e. have hv=c '.Thus the cotton layer thickness that detection obtains
Change can the surface density change of the direct reaction cotton layer of feeding, even device can be according to hv=hbvb=c ', regulation
By the feeding speed of the cotton layer of compression, when the cotton layer thickness of detection is less than hb, then increase v ＞ v to cotton speedb, instead
It, reduce v ＜ v to cotton speedb, it is ensured that in the unit interval, the cotton layer fibre weight of feeding carding machine is constant, i.e. combs
The shaping constant weight of cotton machine.
But, for the carding machine of lap feeding, due to production technology and the process of lap, although from lap
Quantitative (weight of unit length) that is extended down to outward lap inner core cotton layer is basically unchanged, but inevitably there is cotton
The cotton layer denser of volume inner core, the cotton layer of lap extension is more open, and difference is bigger.Compress before loose,
The cotton layer that compaction rate is uneven, after being fed into the pressurization of cotton feeding roller of carding machine position, the density p of cotton layer is also
There is larger difference.Thus, the cotton layer thickness change that detection obtains can not the face of the direct reaction cotton layer of feeding
Variable density, i.e. even device cannot learn the surface density compressing cotton layer of reality, thus, it is impossible to pass through
Hv=hbvb=c ', regulation compresses cotton layer feeding speed so that the cotton layer fiber of feeding carding machine in the unit interval
Measure constant.Therefore, for the carding machine of lap feeding, existing even device loses the basis of normal work.
If in the carding machine of lap feeding, ignoring the change of above-mentioned pressurized cotton layer density p, i.e. with same mark
Quasi-cotton layer thickness hb, utilize formula h v=hbvb=c ', interval velocity cotton to feeding is adjusted, then compare in feeding
During loose cotton layer, owing to compression cotton layer density p now is less, detection obtain by compressing cotton layer thickness
Relatively big, by hv=hbvb=c ', even device will control feed roll motor with the relatively low cotton layer of speed feeding, so,
The cotton sliver weight of carding machine output will be less；Otherwise, when feeding the cotton layer of denser, carding machine exports
Cotton sliver weight will be bigger.The most current even device is not used to the carding machine of lap feeding.
Summary of the invention
The present invention can feed the inherent shortcoming of carding machine for existing even device for lap, it is proposed that cotton
Volume feeding carding machine autoleveller method: according to the concrete condition of lap feeding, periodically update standard cotton layer
Thickness.When this neat and well spaced method is it can be avoided that lap feeding carding machine feeds loose cotton layer, cotton sliver is the lightest；Feeding
During closely knit cotton layer, the defect that cotton sliver is laid particular stress on so that the even device of the present invention can be in the comb and parallel cotton fibers prior to spinning of lap feeding
Machine is well used, it is ensured that the weight unevenness of lap feeding carding machine output sliver.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
A kind of lap feeding carding machine autoleveller method, surveys including cotton layer thickness detection module, doffing speed
Amount module, man machine interface interactive module, the Homogeneous assay method device being connected with above-mentioned module, present invention additionally comprises
Give cotton speed measuring module, feeding cotton layer length accumulation module, the cotton layer length vs's module of feeding, standard cotton thickness
Spend more new module.
Above-mentioned lap feeding carding machine autoleveller method, wherein, the cotton layer length accumulation module of feeding includes
Give cotton tachometer disc, to cotton motor, to cotton tachogenerator, actuating device and feed roll motor, to cotton tachometer disc
It is provided with two teeth, and is coaxially disposed with to cotton motor output shaft to cotton tachometer disc, pass through transmission to cotton motor
Device drive feed roll motor during the carding machine cotton layer of feeding, when the most each tooth is through testing the speed sensing to cotton
During device, send one to cotton pulse signal to Homogeneous assay method device to cotton tachogenerator.
Above-mentioned lap feeding carding machine autoleveller method, wherein, described logical with feed roll motor to cotton motor
Crossing actuating device to connect, often rotate half-turn to cotton motor, the cotton layer of Δ l length is fed carding machine by feed roll motor,
When Homogeneous assay method device often receive one to cotton pulse signal time, cotton layer length l of feeding then adds up a Δ l length
Degree, records current cotton layer thickness value hi simultaneously, when Homogeneous assay method device does not receives to cotton pulse signal, then
Return, again detect the cotton layer thickness in this interval；
Above-mentioned lap feeding carding machine autoleveller method, wherein, the cotton layer length vs's module of described feeding
Cotton layer length L of cotton for the feeding of this interval layer length l and setting is compared, divides in this, as next step program
Prop up the foundation selected, feed cotton layer length L of cotton layer length l >=setting if accumulative in interval, then pass through(1≤i≤j) calculates this interval internal cotton layer average thickness, and by calculated cotton
Layer average thicknessAssignment is to standard cotton layer thickness hb, then, by the cotton layer cumulative length of feeding in interval, each point
The cotton layer thickness value zero setting of segment record, and return, continue next interval cotton layer thickness of detection；If it is tired in interval
The cotton layer length l ＜ of meter feeding sets cotton layer length L, then return, again detect the cotton layer thickness in this interval.
Above-mentioned lap feeding carding machine autoleveller method, wherein, doffing speed measurement module mainly includes
Doffer, doffer's tachometer disc and doffer's tachogenerator；Doffer's tachometer disc is provided with several teeth, and doffer surveys
Speed dish is coaxially disposed with doffer's rotating shaft, during doffer's tachometer disc rotates with doffer's rotating shaft, wherein
Each tooth sends doffer's pulse letter through doffer's speed sensor, doffer's tachogenerator to Homogeneous assay method device
Number.
Above-mentioned lap feeding carding machine autoleveller method, wherein, cotton layer thickness detection module includes cotton layer
Thickness displacement transducer, feed plate and feed roll motor, grip between feed plate and feed roll motor and have the cotton of compression
Layer, described cotton layer thickness displacement transducer constantly detects the thickness of the cotton layer of compression, and the cotton layer that will detect
Thickness exports to Homogeneous assay method device with analog signals.
Above-mentioned lap feeding carding machine autoleveller method, wherein, Homogeneous assay method device passes through man machine interface institute
The parameter provided carries out computing respectively to doffer's pulse signal and analog signals, thus record doffing speed,
Speed v is followed in sliver exporting speed, cotton layer feedingbAnd cotton layer thickness.
Above-mentioned lap feeding carding machine autoleveller method, wherein, Homogeneous assay method device is according to working as of detecting
Front cotton layer thickness, utilizes standard cotton layer thickness hbWith formula h v=hbvb=c ' calculates to cotton speed.
A kind of lap feeding carding machine autoleveller method, this autoleveller method includes: by long for whole lap
Degree is divided into m interval, and wherein, each interval is divided into again the segmentation of j a length of Δ l, with the n-th interval is
Example, the cotton layer average thickness that will detect in the (n-1)th intervalAs the n-th interval cotton layer Homogeneous assay method
Standard cotton layer thickness hbControl to cotton speed；By that analogy, by average for the cotton layer that detects in the n-th interval
ThicknessStandard cotton layer thickness h as the (n+1)th interval cotton layer Homogeneous assay methodbControl to cotton speed, with this
Analogize, periodically update standard cotton layer thickness, described standard cotton layer thickness hbRefer to neat and well spaced fast to cotton to carding machine
When degree carries out autoleveller regulation, regulated quantity is zero, i.e. v=vbTime cotton layer thickness.
Beneficial effects of the present invention: the present invention is directed to existing even device and feed the intrinsic of carding machine for lap
Defect, it is proposed that lap feeding carding machine autoleveller method: according to the concrete condition of lap feeding, cycle
Property update standard cotton layer thickness.When this neat and well spaced method is it can be avoided that lap feeding carding machine feeds loose cotton layer,
Cotton sliver is the lightest；When feeding closely knit cotton layer, the defect that cotton sliver is laid particular stress on so that even device can feed at lap
Carding machine in well used, it is ensured that lap feeding carding machine output sliver weight unevenness.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, not structure
Become limitation of the present invention.
Fig. 1 is that a kind of lap of the present invention feeds the axial schematic diagram of lap in carding machine autoleveller method；
Fig. 2 is that a kind of lap of the present invention feeds whole lap cotton layer expansion point in carding machine autoleveller method
Interval neat and well spaced schematic diagram；
Fig. 3 be the present invention a kind of lap feeding carding machine autoleveller method in n-th interval in lap feed
Enter the accumulative schematic diagram with cotton layer thickness of length；
Fig. 4 be the present invention a kind of lap feeding carding machine autoleveller method in be embodied as steps flow chart
Figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explains the present invention, is not intended to limit the present invention.
A kind of lap feeding carding machine autoleveller method, surveys including cotton layer thickness detection module, doffing speed
Amount module, man machine interface interactive module, the Homogeneous assay method device being connected with above-mentioned module, present invention additionally comprises
Give cotton speed measuring module, feeding cotton layer length accumulation module, the cotton layer length vs's module of feeding, standard cotton thickness
Spend more new module；Doffing speed measurement module mainly includes doffer, doffer's tachometer disc and doffer's tachogenerator,
Doffer's tachometer disc is provided with several teeth, and doffer's tachometer disc is coaxially disposed with doffer's rotating shaft, when doffer tests the speed
During dish rotates with doffer's rotating shaft, the most each tooth is through doffer's speed sensor, and doffer tests the speed
Sensor sends doffer's pulse signal to Homogeneous assay method device；Cotton layer thickness detection module includes cotton layer thickness position
Displacement sensor, feed plate and feed roll motor, grip between feed plate and feed roll motor and have the cotton layer of compression, institute
State the thickness that cotton layer thickness displacement transducer constantly detects the cotton layer of compression, and by the cotton layer thickness that detects with
Analog signals output is to Homogeneous assay method device, and the parameter that Homogeneous assay method device is provided by man machine interface is the most right
Doffer's pulse signal and analog signals carry out computing, thus record doffing speed, sliver exporting speed, cotton layer are fed
Enter to follow speed vbAnd cotton layer thickness, the cotton layer length accumulation module of feeding include to cotton tachometer disc, to cotton motor,
Give cotton tachogenerator, actuating device and feed roll motor, be provided with two teeth to cotton tachometer disc, and survey to cotton
Speed dish is coaxially disposed with to cotton motor output shaft, drives feed roll motor to comb and parallel cotton fibers prior to spinning to cotton motor by actuating device
During the cotton layer of machine feeding, when the most each tooth is through giving cotton tachogenerator, give cotton tachogenerator to
Homogeneous assay method device transmission one, to cotton pulse signal, is connected by actuating device with feed roll motor to cotton motor, gives
Cotton motor often rotates half-turn, and the cotton layer of Δ l length is fed carding machine by feed roll motor, when Homogeneous assay method device often connects
Receive one to cotton pulse signal time, cotton layer length l of feeding then adds up a Δ l length, and record is current cotton simultaneously
Layer thickness value hi, when Homogeneous assay method device does not receives to cotton pulse signal, then returns, again detects local area
Interior cotton layer thickness；The cotton layer length vs's module of feeding is by cotton layer feeding length l and cotton layer length L of setting
Compare, in this, as the foundation of next step program branching selection: if cotton layer length l of accumulative feeding in interval
>=set cotton layer length L, then pass through(1≤i≤j) calculates this interval internal cotton layer and puts down
All thickness, and by calculated cotton layer average thicknessAssignment is to standard cotton layer thickness hb, then, by interval
Interior feeding cotton layer cumulative length l, the cotton layer thickness hi zero setting of each segmentation record, and return, continue to detect next
Cotton layer thickness in interval；If the cotton layer length l ＜ of accumulative feeding sets cotton layer length L in interval, then return,
Again detect the cotton layer thickness in this interval.
Comprising the following steps that (as shown in Figure 4) of a kind of lap of present invention feeding neat and well spaced method of carding machine:
(1), the analog signals that exported by the cotton layer displacement transducer of detection of Homogeneous assay method device, computing obtains
Go out current cotton layer thickness；
(2), Homogeneous assay method device is according to standard cotton layer thickness hb, the cotton layer thickness that detects, utilize formula
Hv=hbvb=c ', calculates to cotton speed, constant to ensure feeding cotton fiber amount, so that output cotton
Bar weight constant；
(3), when Homogeneous assay method device often receive one to cotton pulse signal time, cotton layer length l of feeding then adds up
One Δ l length, records current cotton layer thickness value hi simultaneously, when Homogeneous assay method device does not receives to cotton pulse letter
Number time, then be back to (1st) step continue detection cotton layer thickness.
(4) if adding up feeding cotton layer length L of cotton layer length l >=setting in interval, then pass through(1≤i≤j) calculates this interval internal cotton layer average thickness, and by calculated
Cotton layer average thicknessAssignment is to standard cotton layer thickness hb, then, by the cotton layer cumulative length l of feeding in interval,
The cotton layer thickness value hi zero setting of each segmentation record, and it is back to (1st) step, carry out the cotton thickness in next interval
Degree detection；If the cotton layer length l ＜ of accumulative feeding sets cotton layer length L in interval, then it is back to (1st) step and continues
Continuous this interval internal cotton layer thickness of detection；
(5), described standard cotton layer thickness hbRefer to neat and well spaced time carding machine is carried out autoleveller regulation to cotton speed,
Regulated quantity is zero, i.e. v=vbTime cotton layer thickness.
On the whole, whole lap length is divided into m interval by the present invention, and wherein, each interval is divided into again
The segmentation of j a length of Δ l, as a example by the n-th interval, by the thickest for the cotton layer detected in the (n-1)th interval
DegreeStandard cotton layer thickness h as the n-th interval cotton layer Homogeneous assay methodbControl to cotton speed；With this type of
Push away, the cotton layer average thickness that will detect in the n-th intervalAs the (n+1)th interval cotton layer Homogeneous assay method
Standard cotton layer thickness hbControlling to cotton speed, carding machine enters not only in implementation process cotton speed by the present invention
Row autoleveller regulates, and always according to the concrete condition of lap feeding, periodically updates standard cotton layer thickness, from
And loose in the range of avoiding whole lap, closely knit uneven cause pressurized cotton aspect Density Detection deviation lack
Falling into, when i.e. avoiding the loose cotton layer of carding machine feeding lap extension, cotton sliver is the lightest；Feeding lap inner core is closely knit
During cotton layer, the defect that cotton sliver is laid particular stress on, wherein, n is a variable, 1 ＜ n ＜ m；h(n-1)、h(n)、h(n+1)Deng equal
Point to same address date depositor；
For a person skilled in the art, the present invention is not limited solely to the details of above-described embodiment,
Without departing substantially under the basic feature of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should be using embodiment as exemplary, nonrestrictive, protection scope of the present invention
Limited by appended claims rather than described above, it is intended that by the equivalency in claim that falls
Implication and scope in all changes include in the present invention, should be by any accompanying drawing mark in claim
Note is considered as limiting involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but embodiment is not
The most only comprising an independent technical scheme, this narrating mode of description is only for clarity sake,
Those skilled in the art should be using description as an entirety, and the technical scheme in embodiment also can be through suitably
Combination, forms other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a lap feeding carding machine autoleveller method, including cotton layer thickness detection module, doffing speed
Measurement module, man machine interface interactive module, the Homogeneous assay method device being connected with above-mentioned module, its feature exists
In: present invention additionally comprises to cotton speed measuring module, the cotton layer length accumulation module of feeding, the cotton layer length pair of feeding
Ratio module, standard cotton layer thickness more new module；Described doffing speed measurement module mainly includes doffer, road
Husband's tachometer disc and doffer's tachogenerator；Doffer's tachometer disc is provided with several teeth, and doffer's tachometer disc with
Doffer's rotating shaft is coaxially disposed, during doffer's tachometer disc rotates with doffer's rotating shaft, the most each
Tooth sends doffer's pulse letter through doffer's tachogenerator, doffer's tachogenerator to Homogeneous assay method device
Number；
Described cotton layer thickness detection module includes cotton layer thickness displacement transducer, feed plate and feed roll motor, gives cotton
Gripping between plate and feed roll motor and have the cotton layer of compression, described cotton layer thickness displacement transducer constantly detects pressure
The thickness of tight cotton layer, and the cotton layer thickness detected is exported to Homogeneous assay method device with analog signals；
The parameter that described Homogeneous assay method device is provided by man machine interface is respectively to doffer's pulse signal and analog quantity
Signal carries out computing, thus record doffing speed, speed v is followed in sliver exporting speed, cotton layer feedingbWith cotton layer
Thickness h；
The described cotton layer length accumulation module of feeding include to cotton tachometer disc, to cotton motor, to cotton tachogenerator,
Actuating device and feed roll motor, be provided with two teeth to cotton tachometer disc, and give cotton tachometer disc and to cotton motor
Output shaft is coaxially disposed, and drives feed roll motor to the cotton layer mistake of carding machine feeding to cotton motor by actuating device
Cheng Zhong, when the most each tooth is through giving cotton tachogenerator, gives cotton tachogenerator to Homogeneous assay method device
Send one to cotton pulse signal；
Described it is connected by actuating device with feed roll motor to cotton motor, often rotates half-turn to cotton motor, give cotton sieve
Draw and the cotton layer of Δ l length fed carding machine, when Homogeneous assay method device often receive one to cotton pulse signal time,
Cotton layer length l of feeding then adds up a Δ l length, records current cotton layer thickness value h simultaneouslyi, work as Homogeneous assay method
When device does not receives to cotton pulse signal, then return, again detect the cotton layer thickness in this interval；
In whole lap length range, whole lap length being divided into m interval, wherein, each interval is again
It is divided into the segmentation of j a length of Δ l, as a example by the n-th interval, the cotton layer detected in the (n-1)th interval is put down
All thicknessStandard cotton layer thickness h as the n-th interval cotton layer Homogeneous assay methodbControl to cotton speed；
By that analogy, the cotton layer average thickness that will detect in the n-th intervalEven as the (n+1)th interval cotton layer
The standard cotton layer thickness h of whole controlbControl to cotton speed, described standard cotton layer thickness hbRefer to neat and well spaced to comb and parallel cotton fibers prior to spinning
When machine carries out autoleveller regulation to cotton speed, regulated quantity is zero, i.e. v=vbTime cotton layer thickness；
Described Homogeneous assay method device, according to the current cotton layer thickness h detected, utilizes standard cotton layer thickness hbAnd formula
Hv=hbvb=c ', calculates to cotton speed v, constant to ensure feeding cotton fiber amount, so that
Obtaining the constant of output sliver weight, wherein c ' represents feeding cotton fiber amount.
A kind of lap feeding carding machine autoleveller method the most according to claim 1, it is characterised in that:
Cotton layer length L of cotton layer feeding length l and setting is compared by the cotton layer length vs's module of described feeding,
In this, as the foundation of next step program branching selection, if l >=L, enter standard cotton layer thickness and update relevant
Program；If l is ＜ L, then return, again detect the cotton layer thickness in this interval.
A kind of lap feeding carding machine autoleveller method the most according to claim 1, it is characterised in that:
The standard cotton layer thickness h in described n-th intervalbThe computational methods of more new module are:
It is assigned to hb, described hiFor the cotton of i-th segmentation in interval
Layer thickness, Δ l is the cotton layer length of each segmentation, and j is interval interior segmentation sum.
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| CN108914212B (en) * | 2018-08-06 | 2019-10-25 | 李彬清 | A kind of hackling sett frame control device and control method |
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| 梳棉机自调匀整智能控制;李加文等;《青岛大学学报》;20050630;第20卷(第2期);第53-57页 * |
| 清棉机电子自调匀整装置;莫西等;《长岭杯纺织电子学术研讨论文集》;20020531;第274-279页 * |
| 用交流电机变频调速实现成卷机的自调匀整;丁学文等;《西北纺织工学院学报》;19970331;第31-35页 * |
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