CN103911697B - A kind of pair is fed for carding agencies - Google Patents
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- CN103911697B CN103911697B CN201410112051.3A CN201410112051A CN103911697B CN 103911697 B CN103911697 B CN 103911697B CN 201410112051 A CN201410112051 A CN 201410112051A CN 103911697 B CN103911697 B CN 103911697B
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Abstract
The present invention relates to a kind of pair and be fed for carding agencies, particularly relate to the double of a kind of spinning device and be fed for carding agencies, be made up of two separate feed units, two separate opening boxs and two passages.Its middle left and right feed unit symmetrically arrangement mode；Left and right opening box symmetrically arrangement mode, its topmost building block is the left and right combing roller being respectively provided in left and right carding cavity body；Left and right passage is connected with left and right opening box respectively.The present invention changes tradition spinning device and is fed for the feature of carding agencies, make rotor spinning from original single fiber bar feeding, combing become double-fibre bar feed, combing, and provide two single passages for ultimate fibre entrance revolving cup, thus the weakness in terms of overcoming Revolving cup spinning spinning mixed yarn and producing new type yarn, effectively expand the use field of Revolving cup spinning, enrich the kind of rotor yarn.
Description
Technical field
The invention belongs to spinning machine technical field, relate to a kind of pair and be fed for carding agencies, particularly relate to a kind of spinning device
Double being fed for carding agencies, a kind of two sets are fed for opening box and side by side and have the feeding of spinning device of two passages
To carding agencies.
Background technology
Along with the fast development of textile industry, improving constantly of automatization level, present various novel spinning mode.
Wherein, rotor spinning machine have that spinning speed is high, package capacity is big, spin ability is preferable due to it and can double spin excellent low raw material and
The feature of lower-grade feedstock, it has also become the spinning form that in Advanced Spinning Technologies, technology is the most ripe, application surface is the widest, economy is higher.
Put into large-scale industrial application so far from 20 century 70s, through the development of more than 40 years, Revolving cup spinning product from the coarse cloth at initial stage,
Vamp cloth, the tablecloth etc., develop into denim of today, slubbed fabric, poplin cloth and knitwear etc., and various non-cotton products are also long-pending
In the exploitation of polar region.
Rotor spinning belongs to open-end-spinning technology field.As far back as 1872, in the U.S., just someone applied for patent in open-end-spinning,
But due to a variety of causes, four or five afterwards during the decade, are at developing and experimental stage, hence without reaching industrialization always
The requirement produced.Along with first former Czechoslovakia produce First KS-200 type revolving cup in the world in the sixties in last century
Spinning machine model machine, the most constantly improves in several years afterwards, within 1967, manufactures out First performance more advanced, can
BD-200 type rotor spinning machine for industrialized production.Japan, Germany study and improve subsequently, the skill of rotor spinning
Art obtains the progress advanced by leaps and bounds, and occurs in that from air draft and air suction type rotor spinning machine.And along with the raising of automatization level, turn
Cup spinning also achieves automatization's joint, although result is repeatedly improved, and the overall structure of the critical component spinning organ of Revolving cup spinning
The most all the time without large change.The basic structure of existing spinning organ include housing, case, one be arranged on spinning machine main frame spinning machine
The rotating cup seat containing suction muffler on girder, a revolving cup being positioned in rotating cup seat and the combing roller being arranged on housing, it is fed for sieve
Draw, defeated fine passage between doffing tube and combing roller and revolving cup.Due to tradition spinning organ list set point comb, Revolving cup spinning is made to exist
Cotton spinning pure textile product aspect has bigger application, but is also adopted by Revolving cup spinning simultaneously and produces mixed yarn, short and thick slub, fancy yarn etc.
Bigger restriction and problem is had during new type yarn.Main reasons is that owing to different model combing roller is not to the scope of application of raw material
With, same opening box is difficult to there is different performance fiber good combing simultaneously, therefore, limits to a certain extent and turns
The multiformity of cup Spinning Varieties.Therefore the range of application of Revolving cup spinning is expanded, the kind of abundant rotor yarn, it is necessary to Revolving cup spinning
Critical component spinning organ improves, and particularly design is double is fed for carding agencies.
Summary of the invention
The invention provides a kind of pair and be fed for carding agencies, particularly provide the double of a kind of spinning device to be fed for carding machine, specifically
Ground says be a kind of two sets be fed for opening box arranged side by side and have two passages spinning device be fed for carding agencies.The present invention gram
Taken traditional spinning device is fed for carding agencies defect in structure and performance, it is provided that one have stronger practicality and
The spinning device of higher economic worth be fed for carding agencies.
The a kind of double of the present invention are fed for carding agencies, including one with parting the housing combed cavity, part comb cavity on the right side on the left side, on housing
It is provided with a left feed unit and that ribbon feeding is parted on the left side comb cavity and ribbon is sent into the right feed unit parting comb cavity on the right side；
Described left feed unit is positioned at described double left side being fed for carding agencies, is made up of left feed roller and left feeding board；The described right side is fed
It is positioned at described double right side being fed for carding agencies to device, is made up of right feed roller and right feeding board；Described left feed roller
Effect be left ribbon is pulled into described in part on the left side comb cavity in, the effect of described left feeding board be by described left ribbon guide
Enter described left feed roller；The effect of described right feed roller be right ribbon is pulled into described in part comb cavity on the right side, described
The effect of right feeding board is that described right ribbon is led into described right feed roller；
Described part comb cavity on the left side in be provided with one and left feed unit is sent into part the left ribbon of comb cavity on the left side and carry out combing can be by fiber
Bar is carded to the left combing roller of ultimate fibre state, described in part comb cavity on the right side in be provided with one and right feed unit is sent into part comb cavity on the right side
Right ribbon carries out combing and ribbon can be carded to the right combing roller of ultimate fibre state.
As above a kind of double being fed for carding agencies, what the left side of described housing offered a bar shaped parts comb cavity phase on the left side with described
The left impurity-exhausting cavity of connection, the effect of described left impurity-exhausting cavity is the chopped fiber described left combing roller combing gone out and the described left side of impurity discharge
Carding cavity body；What the right side opening of described housing was provided with a bar shaped parts the right impurity-exhausting cavity that comb cavity is connected, described right row on the right side with described
The effect in miscellaneous chamber is to part comb cavity on the right side described in the chopped fiber described right combing roller combing gone out and impurity discharge.
A kind of pair as above is fed for carding agencies, is connected with a defeated fine passage with described housing, opens on described defeated fine passage
Be connected with one with described part on the left side comb cavity be connected with a left passage, described left passage act as the single fiber that described left combing roller is carded to
Dimension enters revolving cup and provides passage；Described defeated fine passage is opened one and has been connected with a right passage with the described comb cavity that parts on the right side, described
The effect of right passage is that the single fiber being carded to for described right combing roller enters revolving cup offer passage.
As preferred technical scheme:
A kind of pair as above is fed for carding agencies, and described housing is provided with a described left feeding board of control and a described left side is fed for sieve
The left feeding board pressure control spring of the spacer drawn, described housing is provided with a described right feeding board of control and the described right side is fed for sieve
The right feeding board pressure control spring of the spacer drawn.
Feeding point comb as above a kind of double, described in part comb cavity and the described comb cavity that parts on the right side on the left side in same plane symmetric arrays,
Described left combing roller and described right combing roller are in same plane symmetric arrays.
A kind of pair as above is fed for carding agencies, and the profile of tooth of the pin cloth of described left combing roller and described right combing roller is respectively straight
The flat tooth of tooth, straight-tooth, arc back of the body tooth and shortwall tooth, convex back of the body tooth or mountain type tooth；Described left combing roller and described right combing roller
The ratio of the operating angle of pin cloth is 1:1～1.3；The ratio of the tooth depth of the pin cloth of described left combing roller and described right combing roller be 1:1～
1.3；The ratio of the tooth top area of the pin cloth of described left combing roller and described right combing roller is 1:1～1.2；Described left combing roller and institute
The ratio of the tooth density stating the pin cloth of right combing roller is 1:1～1.5.
A kind of pair as above is fed for carding agencies, and the tooth bar of described left combing roller and described right combing roller is in opposite direction, a described left side
Left combing roller and described right combing roller rotation direction are contrary.
A kind of pair as above is fed in carding agencies, the described the most tapered funnel-form of left and right passage, the so mesh of design
Be to increase the length of two passages, cluster air flow, be beneficial to single fiber stretching in described defeated fine passage, a described left side,
Right channel interior is all in absolute bright and clean state, without dirt and the existence of breach.
A kind of pair as above is fed for carding agencies, and described left and right passage is connected with described revolving cup by outlet, described
Left and right passage respectively by left and right enter fine mouth be connected with described left and right carding cavity body, a described left side enters fibre mouth and the described right side enters fibre
Mouth is opened in the back side of described defeated fine passage respectively, and it is 6cm that a described left side enters the distance of fine mouth and described defeated fine passage left side edge,
Upper edge distance is 4cm；It is 6cm that the described right side enters the distance of fine mouth and described defeated fine passage right side edge, upper edge distance
For 4cm；A described left side enters fine mouth and the described right side enters the fine the most rectangular shape of mouth.
A kind of double carding agencies, described left passage and right passages of being fed for as above can have two kinds of forms on described defeated fine passage,
A kind of it is described left passage and described right passage is first connected to a total passage, then shares a total outlet；Another kind of shape
Formula be described left passage and described right passage the most separate, the most described left passage is connected with described revolving cup by a left outlet
Logical, described right passage is connected with described revolving cup by a right outlet, and described left and right passage is not attached to；Described outlet is opened
Being located on navel, described navel is arranged on the front of described defeated fine passage, and is in the middle position of described defeated fine passage.
A kind of pair as above is fed for carding agencies, described left outlet and the phase para-position on described navel of described right outlet
The relation of putting is one of three kinds: a kind of be described left outlet with described right outlet on described navel towards contrary；A kind of
Described left outlet with described right outlet on described navel towards identical；One is described left outlet and the described right side
Outlet on described navel towards at an angle.
Beneficial effect
Compared with prior art, the present invention a kind of double is fed for carding agencies and has the advantage that
1 spinning organ double are fed for carding agencies and have two independent carding agencies, can select rational type according to the character of raw material
Number combing roller, good to the carding effect of raw material, damage little, therefore efficiently solve the technical barrier of Revolving cup spinning spinning mixed yarn,
And institute's yarn quality is high, and the rotor yarn with individual style can be produced.
2 spinning organs double are fed for carding agencies and have two independent feed units, the most quite add one mixing in doubling step,
The bar evenness of yarn can be effectively improved, reduce the quantity of harmful filoplume, improve the quality of yarn.And feeding speed can be improved,
And then improve and draw yarn speed, improve the efficiency of Revolving cup spinning.
3 spinning organs double are fed for carding agencies and can produce a certain proportion of mixed yarn and various flame, and spinned lines are dry
Uniformly, filoplume is few.Owing to being two one thread feedings, it is especially suitable for the production of low count yarn.
Double points of comb fed agencies of 4 spinning organs have two independent passages, and the length of left and right passage compares other spinning
Device length is long, is therefore more beneficial for stretching of fiber.
Accompanying drawing explanation
Fig. 1 is double in the present invention to be fed for carding agencies floor map
Fig. 2 is defeated fine channel plane structural representation in the present invention
Fig. 3 is defeated fine channel form one in the present invention
Fig. 4 is defeated fine channel form two in the present invention
Fig. 5 is that middle left and right outlet of the present invention is towards opposite planar structural representation
Fig. 6 is that middle left and right outlet of the present invention is towards same level structural representation
Fig. 7 is that middle left and right outlet of the present invention is towards planar structure schematic diagram at an angle
In figure 1 spinning organ housing 2 part on the left side comb cavity 3 part on the right side comb the left combing roller of cavity 45 right combing roller 6 left side be fed for
The left left feeding board pressure of the right impurity-exhausting cavity of impurity-exhausting cavity 11 12 of the right feed roller of the roller 78 right feeding board of left feeding board 9 10
Power control spring 13 right feeding board pressure control spring 14 left side enters fine mouth 15 right side and enters the fine right passage of the left passage of mouth 16 17
The defeated fine passage of 18 overall channel 19 total left outlet of outlet 20 21 right outlet 22 navel 23
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is expanded on further.Should be understood that these embodiments be merely to illustrate the present invention and
It is not used in restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, those skilled in the art
Can make various changes or modifications the present invention, these equivalent form of values fall within the model that the application appended claims is limited equally
Enclose.
The a kind of double of the present invention are fed for carding agencies, as shown in Figure 1: include one with parting comb cavity (2) on the left side, parting comb cavity on the right side
(3) housing (1), being provided with a left feed unit and that ribbon feeding parts on the left side comb cavity (2) on housing (1) will
Ribbon sends into the right feed unit parting comb cavity (3) on the right side；Left feed unit is positioned at the left side of housing (1), a left side be fed for sieve
Draw (6) and left feeding board (8) composition；Right feed unit is positioned at the right side of housing (1), by right feed roller (7) and the right side
Feeding board (9) forms；The effect of left feed roller (6) is to be pulled into left ribbon parting on the left side in comb cavity (2), and a left side is fed
It is that left ribbon is led into left feed roller (6) to the effect of plate (8)；The effect of right feed roller (7) is by right fibre
Dimension bar is pulled into parting comb cavity (3) on the right side, and the effect of right feeding board (9) is that right ribbon leads into right feed roller (7).
As shown in Figure 1: be provided with one in parting comb cavity (2) on the left side and left feed unit is sent into the left ribbon parting comb cavity (2) on the left side
Carry out combing and ribbon can be carded to the left combing roller (4) of ultimate fibre state, being provided with one in parting comb cavity (3) on the right side and the right side is fed
The right ribbon parting comb cavity (3) to device feeding on the right side carries out combing and ribbon can be carded to the right combing roller of ultimate fibre state
(5).
As shown in Figure 1: the left side of housing (1) open one with part the left impurity-exhausting cavity (10) of bar shaped that comb cavity (2) is connected on the left side,
Right side opening at housing (1) is connected with a right impurity-exhausting cavity (11) parting the bar shaped that comb cavity (3) is connected on the right side；Left and right impurity-exhausting cavity
Effect be that above-mentioned opening box combing impurity out and chopped fiber are discharged carding cavity body.
As depicted in figs. 1 and 2: be connected with a defeated fine passage (23) with housing (1), defeated fine passage (23) has been opened
One with part on the left side comb cavity (2) be connected with a left passage (16), left passage (16) act as what left combing roller (4) was carded to
Ultimate fibre enters revolving cup and provides passage；Defeated fine passage (23) opens one and has been connected with a right passage with parting comb cavity (3) on the right side
(17), the effect of right passage (17) is that the single fiber being carded to for right combing roller (5) enters revolving cup offer passage.
As shown in Figure 1: housing (1) is provided with the described left feeding board of a control (8) and the interval of described left feed roller (6)
Away from left feeding board pressure control spring (12), housing (1) is provided with the described right feeding board of control (9) and a right feed roller
(7) the right feeding board pressure control spring (13) of spacer.
As shown in Figure 1: part comb cavity (2) on the left side and described parting on the right side combs cavity (3) in same plane symmetric arrays, part comb on the left side
Roller (4) and described right combing roller (5) are in same plane symmetric arrays.
As shown in Figure 1: the ratio of the operating angle of the pin cloth of left combing roller (4) and described right combing roller (5) is 1:1～1.3；
The ratio of the tooth depth of the pin cloth of left combing roller (4) and right combing roller (5) is 1:1～1.3；Left combing roller (4) and right combing roller
(5) ratio of the tooth top area of pin cloth is 1:1～1.2；The tooth density of the pin cloth of left combing roller (4) and right combing roller (5)
Ratio be 1:1～1.5.The profile of tooth of left combing roller (4) and right combing roller (5) is in opposite direction, left combing roller (4) and parting on the right side
The rotation direction of comb roller (5) is contrary.
As shown in Figure 2, Figure 3 and Figure 4: left passage (16) and right passage (17) the most tapered funnel-form, its objective is
Extend the length of defeated fine passage (23), the air-flow in defeated fine passage (23) described in boundling, it is beneficial to single fiber described defeated
Stretching in fine passage (23)；Defeated fine passage (23) is internal all in absolute bright and clean state, without dirt and the existence of breach.
As shown in Figure 1: left and right passage respectively by left and right enter fine mouth be connected with described left and right carding cavity body；Such as Fig. 2 institute
Show: a left side enters fine mouth (14) and the right side enters fine mouth (15) and is opened in the back side of defeated fine passage (23) respectively, and a left side enters fine mouth (14)
Being 6cm with the distance of defeated fine passage (23) left side edge, upper edge distance is 4cm；The right side enters fine mouth (15) and leads to defeated fibre
The distance of road (23) right side edge is 6cm, and upper edge distance is 4cm；A left side enters fine mouth (14) and the right side enters fine mouth (15)
The most rectangular shape.
As shown in Figure 3 and Figure 4: left passage (16) is connected with revolving cup by outlet with described right passage (17), left,
The form of right passage is: as it is shown on figure 3, left passage (16) and right passage (17) are connected to an overall channel (18), shares
One total outlet (19)；Or as shown in Figure 4, left passage (16) and right passage (17) are the most separate, both described
Left passage (16) is connected with revolving cup by a left outlet (20), right passage (17) by a right outlet (21) with
Revolving cup is connected, and left and right passage does not connects；Total outlet (19) or left outlet (20) and right outlet (21) are all
Being opened on navel (22), navel (22) is arranged on the front of described defeated fine passage (23), and is in described defeated fibre
The middle position in passage (23) front.
As shown in Fig. 5, Fig. 6 and Fig. 7: left outlet (20) and right outlet (21) are in the upper phase para-position of navel (22)
The relation of putting is one of three kinds: one is as it is shown in figure 5, left outlet (20) and right outlet (21) are in navel (22)
On towards on the contrary；One is as shown in Figure 6, and left outlet (20) and right outlet (21) are on navel (22)
Towards identical；One be as it is shown in fig. 7, left outlet (20) and right outlet (21) on navel (22) towards
At an angle.
Claims (6)
1. one kind pair is fed for carding agencies, it is characterized in that: include that one combs cavity (2) with parting on the left side and parts the housing (1) of comb cavity (3) on the right side, housing (1) is provided with a left feed unit that ribbon feeding parts on the left side comb cavity (2) and ribbon feeding is parted on the right side the right feed unit combing cavity (3)；Described left feed unit is positioned at the left side of described housing (1), is made up of left feed roller (6) and left feeding board (8)；Described right feed unit is positioned at the right side of described housing (1), is made up of right feed roller (7) and right feeding board (9)；The effect of described left feed roller (6) be left ribbon is pulled into described in part on the left side in comb cavity (2), the effect of described left feeding board (8) is that described left ribbon leads into described left feed roller (6)；The effect of described right feed roller (7) be right ribbon is pulled into described in part on the right side comb cavity (3), the effect of described right feeding board (9) is that described right ribbon leads into described right feed roller (7)；
Described part comb cavity (2) on the left side in be provided with one and left feed unit is sent into part the left ribbon of comb cavity (2) on the left side and carry out combing and ribbon can be carded to the left combing roller (4) of ultimate fibre state, described in part comb cavity (3) on the right side in be provided with one and right feed unit is sent into part the right ribbon of comb cavity (3) on the right side and carry out combing and ribbon can be carded to the right combing roller (5) of ultimate fibre state；
The left side of described housing (1) is opened one and is parted, with described, the left impurity-exhausting cavity (10) of bar shaped that comb cavity (2) is connected on the left side, right side opening at described housing (1) is connected with one and parts, with described, the right impurity-exhausting cavity (11) of bar shaped that comb cavity (3) is connected on the right side, and the effect of described left and right impurity-exhausting cavity is that left and right carding cavity body combing impurity out and chopped fiber are discharged left and right carding cavity body；
It is connected with a defeated fine passage (23) with described housing (1), opening one on described defeated fine passage (23) and part, with described, the left passage (16) that comb cavity (2) is connected on the left side, the effect of described left passage (16) is that the ultimate fibre being carded to for described left combing roller (4) enters revolving cup offer passage；Opening one on described defeated fine passage (23) and part, with described, the right passage (17) that comb cavity (3) is connected on the right side, the effect of described right passage (17) is that the single fiber being carded to for described right combing roller (5) enters revolving cup offer passage；
Described left passage (16) and described right passage (17) the most tapered funnel-form, its objective is to extend the length of defeated fine passage (23), air-flow in defeated fine passage (23) described in boundling, is beneficial to single fiber stretching in described defeated fine passage (23)；Described defeated fine passage (23) is internal all in absolute bright and clean state, without dirt and the existence of breach；
Described left and right passage respectively by left and right enter fine mouth be connected with described left and right carding cavity body, a described left side enters fine mouth (14) and the described right side enters fine mouth (15) and is opened in the back side of described defeated fine passage (23) respectively, it is 6cm that a described left side enters the distance of fine mouth (14) and described defeated fine passage (23) left side edge, and upper edge distance is 4cm；It is 6cm that the described right side enters the distance of fine mouth (15) and described defeated fine passage (23) right side edge, and upper edge distance is 4cm；A described left side enters fine mouth (14) and the described right side enters fine mouth (15) the most rectangular shape；
Described left passage (16) is connected with revolving cup by outlet with described right passage (17), the form of described left and right passage is: described left passage (16) and described right passage (17) are connected to an overall channel (18), shares a total outlet (19)；Or, described left passage (16) and described right passage (17) are the most separate, the most described left passage (16) is connected with revolving cup by a left outlet (20), described right passage (17) is connected with revolving cup by a right outlet (21), and left and right passage does not connects；Total outlet (19) or left outlet (20) and right outlet (21) are all opened on navel (22), described navel (22) is arranged on the front of described defeated fine passage (23), and is in the middle position in described defeated fine passage (23) front.
One the most according to claim 1 is double is fed for carding agencies, it is characterized in that, described housing (1) is provided with the left feeding board pressure control spring (12) of the spacer of the described left feeding board of a control (8) and described left feed roller (6), and described housing (1) is provided with the right feeding board pressure control spring (13) of the spacer of the described right feeding board of a control (9) and described right feed roller (7).
The most according to claim 1 pair is fed for carding agencies, it is characterized in that, described parting comb cavity (2) on the left side and described parting on the right side combs cavity (3) in same plane symmetric arrays, described left combing roller (4) and described right combing roller (5) are in same plane symmetric arrays.
One the most according to claim 1 is double is fed for carding agencies, it is characterised in that the ratio of the operating angle of the pin cloth of described left combing roller (4) and described right combing roller (5) is 1:1～1.3；The ratio of the tooth depth of the pin cloth of described left combing roller (4) and described right combing roller (5) is 1:1～1.3；The ratio of the tooth top area of the pin cloth of described left combing roller (4) and described right combing roller (5) is 1:1～1.2；The ratio of the tooth density of the pin cloth of described left combing roller (4) and described right combing roller (5) is 1:1～1.5.
One the most according to claim 1 is double is fed for carding agencies, it is characterized in that, the profile of tooth of described left combing roller (4) and described right combing roller (5) is in opposite direction, and the rotation direction of described left combing roller (4) and described right combing roller (5) is contrary.
The most according to claim 1 pair is fed for carding agencies, it is characterized in that, described left outlet (20) and described right outlet (21) are one of three kinds at the upper relative position relation of described navel (22): one be described left outlet (20) with described right outlet (21) on described navel (22) towards contrary；One be described left outlet (20) with described right outlet (21) on described navel (22) towards identical；One be described left outlet (20) with described right outlet (21) on described navel (22) towards at an angle.
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| CN105040193B (en) * | 2015-08-21 | 2018-02-16 | 江南大学 | A kind of asynchronous input of double slivers and the revolving cup spinning method and device of three fractions comb |
| CN105040194B (en) * | 2015-08-21 | 2018-01-16 | 江南大学 | The asynchronous input of four slivers and the revolving cup spinning method and device of three fractions comb |
| CN113638100A (en) * | 2021-08-31 | 2021-11-12 | 浙江理工大学绍兴柯桥研究院有限公司 | Preparation method of segment-color slub yarn |
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| DE4227099C2 (en) * | 1992-08-17 | 1996-01-25 | Rieter Ingolstadt Spinnerei | Method and device for open-end spinning |
| DE102010044181A1 (en) * | 2010-11-19 | 2012-05-24 | Maschinenfabrik Rieter Ag | Fiber channel insert |
| CN202809070U (en) * | 2012-09-03 | 2013-03-20 | 山东德源纱厂有限公司 | Impurity discharging device of spinning device |
| CN103572420B (en) * | 2013-11-14 | 2015-10-21 | 浙江理工大学 | A kind of revolving cup composite yarn spinning apparatus |
| CN103572419B (en) * | 2013-11-14 | 2015-10-21 | 浙江理工大学 | A kind of staple fibre revolving cup composite yarn spinning method |
| CN203890551U (en) * | 2014-03-24 | 2014-10-22 | 东华大学 | Double-feeding carding mechanism |
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2014
- 2014-03-24 CN CN201410112051.3A patent/CN103911697B/en active Active
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