CN106192114A - Two passages asynchronous drawing-off Compact Spinning yarn feeding device, colour-spun yarns diyl color contamination chromatic effect regulation and control method and colour mixture section coloured yarn - Google Patents

Abstract

The present invention relates to a kind of two passage asynchronous drawing-off Compact Spinning yarn feeding device, colour-spun yarns diyl color contamination chromatic effect regulation and control method and colour mixture section coloured yarn, it is characterized in that: include the two asynchronous drafting systems of passage, two passage feed carriers and two passage apparatus for collecting；The described two asynchronous drafting systems of passage include combining rear roller, middle roller and front roller, and combination rear roller is made up of the first rear roller independently driven and the second rear roller；Described two passage apparatus for collecting include that two passages gather groove special pipe, gather groove special pipe surface at two passages and are provided with two passages and gather groove, and two passages gather groove and include that two are gathered groove, and two ends gathering groove are intersected in yarn joint.The twisting point position that crosses of two rove, by two passage rove are effectively gripped and gathered, is fixed, twist triangle zone form stable by the present invention.The present invention at the ratio of the distribution area of yarn outer layer, regulates and controls the color blending effects such as the form and aspect of melange yarn, lightness and saturation by each primary colours fiber of regulation and control with this.

Description

Two passages asynchronous drawing-off Compact Spinning yarn feeding device, colour-spun yarns diyl color contamination chromatic effect regulate and control Method and colour mixture section coloured yarn

Technical field

The present invention relates to a kind of two passage asynchronous drawing-off Compact Spinning yarn feeding device, colour-spun yarns diyl color contamination chromatic effect regulation and control method And colour mixture section coloured yarn.

Background technology

Colour-spun yarns is to be formed by the short fiber blending of different colours, and it can present nature, gay colours, and tone is soft With, warm, the fabric being made into has dim stereoeffect, thus is received by the market very much.The change of original liquid coloring in recent years Learn the production technology of fiber (such as colored fibres such as coloured viscose, colored terylene, color acrylic fibres), the staple in bulk of all kinds of natural fiber Staining technique reaches its maturity, and fine Industry Foundation has been established in the development for colour-spun yarns.Through the development of nearly more than ten years, lead in China Being initially formed the textile fabrics industrial chain centered by colour-spun yarns, upstream relates to original liquid coloring chemical fibre and the natural fibre that dyes Dimension, downstream relate to clothing, home textile textile.Colour-spun yarns has become important textile production side in wool spinning, cotton spinning field Formula, production scale has reached 10,000,000 ingots, will become the most important textile production mode.

The production of colour-spun yarns is typically taked to grab cotton colour mixture, drafting colour mixture, is grabbed and cotton spin with drafting dual-purpose colour mixture, the many components of spun yarn The techniques such as yarn colour mixture, doubling double twisting colour mixture, the color textile product appearance style of formation can be divided into the uniform colour-spun yarns of colour mixture, colour mixture not Uniform colour-spun yarns, the number of colours of colour-spun yarns can be divided into double-colored colour-spun yarns, polychrome colour-spun yarns, and colour-spun yarns mixed proportion can be divided into low Ratio colour-spun yarns (color fibre≤10%), middle ratio colour-spun yarns (10%≤color fibre≤40%), at high proportion colour-spun yarns (color fibre >=40%).Owing to, in existing colour-spun yarns production model, the mixing of different color fiber and spinning forming be not in same one procedure In carry out, be after heterochromatic fiber mixes formerly, yarn is formed in, thus cause the heterochromatic fiber mixed proportion in the yarn can not Arbitrarily regulation and control, also cannot be precisely controlled and realize color.Therefore in actual production, the color of colour-spun yarns (includes form and aspect, lightness, satisfies And degree) cannot arbitrarily regulate and control, the distribution of color also cannot arbitrarily regulate and control, this at theoretical and technical short-leg, causes color to spin The design of yarn color and flower pattern lacks means, and colour-spun yarns new product development is greatly limited.

For the problems referred to above, prior art Patent application: " the double-colored rove similarities and differences walk drawing-off and realize the side of mixture colour-spun yarns Method and device (CN201510142417.6) ", " the double-component similarities and differences walk two grades of drawing-offs and spin the method and device of many color bunchy yarns (CN201510140954.7) ", " colorful ring and the method and device of some point yarn are spinned based on two grades of drawing-offs of double-component (CN201510142418.0) ", " the double-component similarities and differences step two grades of drawing-off spinning apparatus (CN 201520180033.9) ", disclose By computer program control and servo-drive, on-line continuous the mix ratio of heterochromatic fiber can be changed so that it is formed along length of yarn Random distribution.

The color (form and aspect, lightness, saturation) of colour-spun yarns is to be formed after spatial juxtaposition mixes by the fiber of different colours Color, it depends on the area ratio shared by each color fibre that colour-spun yarns outer layer is distributed, by the blending ratio of color fibre, color fibre Distribution (yarn texture) and the twist thereof in the yarn determine.Traditional colour spinning technique can not arbitrarily regulate and control colour mixture ratio, therefore not Can arbitrarily regulate and control colour-spun yarns color blending effect.And in above-mentioned patent application, arbitrarily and immediately regulated and controled colour-spun yarns by asynchronous drawing-off Blending ratio, and then realize the arbitrarily change of colour-spun yarns mixed color and instant change.Owing to two rove are respectively through different Converge at front roller nip again after draft ratio drawing-off and twist, when the thickness generation change at random of two root hair bars and differ greatly Time, the twisting point that it crosses can move about along with the change of draft ratio, it is impossible to forms stable twist triangle zone.Thus, one Aspect causes the randomness that color fibre is distributed, and on the other hand causes yarn actual twist suddenly big or suddenly small and deviation theory value.Due to Color fibre and the randomness of twist change, cause color fibre in the uncontrollability of the yarn outer layer regularity of distribution.It is known that color spins In yarn the mixed model of fiber different colours meet color spatial juxtaposition mixing, color blending effect this depend on floating over yarn top layer The area ratio of each primary colours fiber and the distribution of the twist.Multichannel number colour-spun yarns produces random mobile due to twisting point, twisting Trigonum form is unstable, thus uncontrollable color fibre is in the regularity of distribution on colour-spun yarns top layer, therefore cannot realize mixed color Control accurate and mixing aberration control accurate, cause actual color blending effect with theory color blending effect there is larger difference.Example As, in scheme disclosed in patent application CN201510140954.7, CN201510142418.0, CN 201520180033.9, The twist triangle zone form that the yarn of two rove is formed at front roller nip after drawing-off can be because of two roving-drafting ratios Change and change, due to two root hair bars doubling twisting region occur fluctuation and cause yarn texture to change, cause color There are big ups and downs and deviates setting value in the area ratio of yarn surface each color fibre distribution, thus affects color blending effect (bag Include form and aspect, lightness, saturation) uniformity and stability.

Summary of the invention

It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of two passage asynchronous drawing-off boundling spins Device, by two passage rove are effectively gripped and gathered, during the asynchronous drawing-off change at random of two rove, it crosses and adds Twist with the fingers some position to fix, twist triangle zone form stable.

The present invention also provides for a kind of colour-spun yarns diyl color contamination chromatic effect regulation and control method, by regulating and controlling each primary colours fiber at yarn The ratio of the distribution area of outer layer, regulates and controls the color blending effects such as the form and aspect of melange yarn, lightness and saturation with this.

The present invention also provides for a kind of colour mixture section coloured yarn, the fiber of the different color being arranged in top layer mix through spatial juxtaposition Formed, by each primary colours fiber at the ratio of yarn outer layer distribution area, it is achieved colour mixtures such as the form and aspect of melange yarn, lightness and saturations Effect.

The technical scheme provided according to the present invention, described two passage asynchronous drawing-off Compact Spinning yarn feeding device, it is characterized in that: include The two asynchronous drafting systems of passage, two passage feed carriers and two passage apparatus for collecting；

The described two asynchronous drafting systems of passage include combining rear roller, middle roller and front roller, and combination rear roller is by independence The first rear roller driven and the second rear roller composition；

Described two passage apparatus for collecting are positioned at the outfan of front roller, gather groove special pipe including grid ring and two passages, Gather groove special pipe surface at two passages to be provided with two passages and gather groove, two passages gather groove include two arrange in angle gather Groove, two ends gathering groove are intersected in yarn joint.

In a detailed description of the invention, described two angles gathering groove are 7 °～9 °, and two width gathering groove are equal For 1.2mm～1.5mm, two width gathered between trough end are 2.4～3mm, two ends gathering groove be radius 1.5～ The circular arc of 2mm.

In a detailed description of the invention, described two passage feed carriers include two after horn mouth, two passage yarn guides And lever jack；After described two, horn mouth is arranged at the input of combination rear roller, has two permissions after two on horn mouth The hole that two primary colours rove pass through；Described two passage yarn guides are arranged between combination rear roller and middle roller, two passage yarn guides On there are two allow the passages that pass through of two primary colours rove；Described lever jack is arranged between middle roller and front roller, lever jack On there are two passages of left and right side.

In a detailed description of the invention, described middle roller is cased with drafting apron.

Described colour-spun yarns diyl color contamination chromatic effect regulation and control method, is characterized in that, use two passages asynchronous drawing-off boundling to spin Device regulates and controls, and comprises the following steps:

(1) drive the first rear roller and the second rear roller respectively with linear velocity V_ha、V_hbRotating, middle roller is with linear velocity V_zTurn Dynamic, front roller is with linear velocity V_qRotate；

(2) with in of the same colour section, the ratio V of the linear velocity of the first rear roller and the second rear roller is kept_ha/V_hbIt is worth constant, then Realize the first primary colours rove and draw ratio E of the second primary colours rove_a:E_bThe colour mixture of value and two primary colours colour-spun yarns compares k_a/k_bValue perseverance Fixed；

(3) the rove yarn that two draw ratios being exported by front roller are constant is intersected in twisting by two passage apparatus for collecting Point, forms stable twist triangle zone, and the colour-spun yarns obtained pitch h and helixangleθ in of the same colour section is constant；

(4) based on above-mentioned with pitch h in of the same colour section and helixangleθ constant in the case of, by adjust the first primary colours rove, The drawing-off ratio of the second primary colours rove, obtains the two primary colours colour-spun yarns with multiple color section, and each color section has corresponding colour mixture Ratio.

Further, in of the same colour section in pitch length h, the distribution length of the first primary colours rove is a=κ_a× h, the The distribution length of two primary colours rove is b=κ_b×h。

Further, the area ratio of the diyl color fibre on described two primary colours colour-spun yarns top layers is equal to two primary colours in colour-spun yarns The colour mixture ratio of fiber.

Described colour mixture section coloured yarn, is characterized in that: described section coloured yarn by the first primary colours fiber and the second primary colours fiber through drawing-off, Twisting forms multiple color sections；In same color section, the first primary colours fiber and pitch h of the second primary colours fiber and helixangleθ are constant.

Further, described first primary colours fiber and the second primary colours fiber are equal to first in the area ratio of section coloured yarn outer layer The colour mixture ratio of primary colours fiber and the second primary colours fiber.

The invention have the advantages that

(1) present invention is by effectively gripping two passage rove and gather, and the asynchronous drawing-off of two rove becomes at random During change, its twisting point position that crosses is fixed, twist triangle zone form stable.

(2) present invention is by each primary colours fiber of regulation and control at the ratio of the distribution area of yarn outer layer, regulates and controls melange yarn with this The color blending effects such as form and aspect, lightness and saturation.

(3) the colour mixture section coloured yarn obtained by the present invention, is mixed through spatial juxtaposition by the fiber of the different color being arranged in top layer Close and formed, by each primary colours fiber at the ratio of yarn outer layer distribution area, it is achieved the form and aspect of melange yarn, lightness and saturation etc. are mixed Chromatic effect.

Accompanying drawing explanation

Fig. 1 is the structural representation of two passage of the present invention asynchronous drawing-off Compact Spinning yarn feeding device.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the schematic diagram that described two passages gather groove.

The yarn cross section structural representation that Fig. 4 is formed by the spinning of two passages asynchronous drawing-off Compact Spinning yarn feeding device.

The outer circumference surface schematic diagram of the yarn that Fig. 5 is formed by the spinning of two passages asynchronous drawing-off Compact Spinning yarn feeding device.

Fig. 6 is the colour-spun yarns model of two primary colours juxtaposition colour mixtures based on two passages asynchronous drawing-off Compact Spinning yarn feeding device.

Fig. 7 is the dither pattern schematic diagram of section coloured yarn color section 1 in embodiment two.

Fig. 8 is the dither pattern schematic diagram of section coloured yarn color section 2 in embodiment two.

Fig. 9 is the dither pattern schematic diagram of section coloured yarn color section 3 in embodiment two.

Figure 10 is the dither pattern schematic diagram of section coloured yarn color section 4 in embodiment two.

Figure 11 is the dither pattern schematic diagram of section coloured yarn color section 5 in embodiment two.

Figure 12 is the dither pattern schematic diagram of section coloured yarn color section 6 in embodiment two.

Figure 13 is the dither pattern schematic diagram of section coloured yarn color section 7 in embodiment two.

Figure 14 is the dither pattern schematic diagram of section coloured yarn color section 8 in embodiment two.

Figure 15 is the dither pattern schematic diagram of section coloured yarn color section 9 in embodiment two.

Figure 16 is the dither pattern schematic diagram of section coloured yarn color section 10 in embodiment two.

Figure 17 is the dither pattern schematic diagram of section coloured yarn color section 11 in embodiment two.

A in Fig. 7～Figure 17₁、a₂、a₃、a₄、a₅、a₆、a₇、a₈、a₉、a₁₀、b₁、b₂、b₃、b₄、b₅、b₆、b₇、b₈、b₉、b₁₀Respectively Represent and the fibre length in twist pitch h is divided into ten equal portions.

Detailed description of the invention

Below in conjunction with concrete accompanying drawing, the invention will be further described.

Embodiment one:

As shown in Figure 1 and Figure 2, two passage of the present invention asynchronous drawing-off Compact Spinning yarn feeding device, including the two asynchronous drawing-offs of passage Device, two passage feed carriers and two passage apparatus for collecting；The described two asynchronous drafting systems of passage include combining rear roller, middle sieve Drawing 8 and front roller 10, combination rear roller is made up of the first rear roller 4 independently driven and the second rear roller 5, and middle roller 8 overlaps There is drafting apron 7；Described two passage feed carriers include two after horn mouth 3, two passage yarn guide 6 and lever jack 9；Described two After Yan, horn mouth 3 is arranged at the input of combination rear roller, has two and allow two primary colours rove to pass through after two on horn mouth 3 Hole；Described two passage yarn guides 6 are arranged between combination rear roller and middle roller 8, two passage yarn guides 6 have two and permits Permitted the passage that two primary colours rove pass through；Described lever jack 9 is arranged between middle roller 8 and front roller 10, and lever jack 9 has Two passages of left and right side.Two primary colours rove feed paths are: first primary colours rove the 1, second primary colours rove 2 is respectively by two loudspeakers The jaw of two independent first rear roller the 4, second rear rollers 5 driven of hole feeding of mouth 3 enters draw zone, then along two passages The left and right side passage of yarn guide 6, apron 7, the left and right side passage of lever jack 9, enter the jaw of front roller 10, completes left and right two The drawing-off of root rove.The effect of two passage feed carriers is that to ensure that two rove yarns are gripped by middle roller and front roller effective Property and the reliability of asynchronous drawing-off.

As shown in Figure 1 and Figure 2, described two passage apparatus for collecting are positioned at the outfan of front roller 10, including grid ring and two-way Road gathers groove special pipe 11, gathers groove special pipe 11 surface at two passages and is provided with two passages and gathers groove (as shown in Figure 3), two passages Gathering groove and include that two are gathered groove, two ends gathering groove are intersected in C point, and two angles gathering groove are 7 °～9 °, two Width a, b of gathering groove are 1.2mm～1.5mm, and two width gathered between trough end A, B are 2.4～3mm, Liang Tiaoji The end of poly-groove is the circular arc of radius 1.5～2mm；The effect that described two passages gather groove is control front roller 10 output two Rove yarn is intersected in C point union at a certain angle and is polymerized to a sliver, and C point is also the twisting point of ring ingot device simultaneously.Due to Gather the gripping control of groove and form balance with yarn spinning tension, no matter the whether dynamic random change of two rove bar line densities, The convergent point of two rove yarns and mutually hold the angle of twisting and will not change.

Below the principle of colour-spun yarns diyl color contamination chromatic effect regulation and control method is illustrated.

If the line density of first primary colours rove the 1, second primary colours rove 2 is respectively ρ_a、ρ_b, fiber dyed yarn density p_y, colour mixture ratio For k_a、k_b, the draw ratio of corresponding two rove is respectively E_a、E_b, twist N_Z, spindle rotating speed N_D, middle roller linear velocity V_Z, after two Roller linear velocity V_ha、V_hb。

1, draw ratio E_a、E_b:

$E_a=\frac{{\mathrm{\ρ}}_a}{{\mathrm{\κ}}_a\×{\mathrm{\ρ}}_y}=\frac{V_{ha}}{V_q}---\left(1\right);$

$E_b=\frac{{\mathrm{\ρ}}_b}{{\mathrm{\κ}}_b\×{\mathrm{\ρ}}_y}=\frac{V_{hb}}{V_q}---\left(2\right);$

2, roller speed before, during and after:

Front roller speed

First rear roller speed V_ha=V_q×Ε_a(4)；

Second rear roller speed V_hb=V_q×Ε_b(5)；

3, two rear roller asynchronous feeding two color rove regulation and control colour-spun yarns colour mixture ratios:

First primary colours rove the 1, second primary colours rove 2 is fed two independent drivings by two holes of eyes horn mouth 3 respectively First rear roller the 4, second rear roller 5 jaw enter draw zone, through middle roller and the drawing-off of front roller, then twist formation two The colour-spun yarns of primary colours colour mixture.First rear roller its speed of the 4, second rear roller 5 independently driven by servomotor is V_ha、V_hb, k_a、 k_bIt is respectively first primary colours rove the 1, the second primary colours rove 2 colour mixture ratio in colour-spun yarns, then:

${\mathrm{\κ}}_a=\frac{V_{ha}}{V_{ha}+V_{hb}}=\frac{E_a}{E_b+E_b}---\left(7\right);$

${\mathrm{\κ}}_b=\frac{V_{hb}}{V_{ha}+V_{hb}}=\frac{E_b}{E_b+E_b}---\left(8\right);$

κ_a+κ_b=1 (9)；

From formula (7), (8), (9), by changing the draw ratio to first primary colours rove the 1, second primary colours rove 2, The colour mixture ratio of diyl color contamination dyed yarn can be changed.

The regulation and control method of colour-spun yarns color blending effect is: the color blending effect of colour-spun yarns is by the difference being arranged in its surface fibre Color is mixed to form through spatial juxtaposition.By each primary colours fiber of regulation and control at the ratio of the distribution area of yarn outer layer, regulate and control with this The color blending effects such as the form and aspect of melange yarn, lightness and saturation.

As shown in Figure 4, the yarn cross section structural representation formed by the spinning of two passages asynchronous drawing-off Compact Spinning yarn feeding device, Wherein: S_α、S_βFor each component fiber occupied area in yarn cross section, then each component in yarn cross section occupied area it Ratio is equal to each component fiber blend ratio, it may be assumed that

$\frac{S_{\mathrm{\α}}}{S_{\mathrm{\β}}}=\frac{{\mathrm{\κ}}_a}{{\mathrm{\κ}}_b}---\left(10\right);$

Set again α be the first primary colours rove 1 the fan-shaped central angle of formation, the circle of is formationed sector that β is the second primary colours rove 2 Heart angle；The arc length that formation that a is the first primary colours rove 1 is fan-shaped, the arc length of is formationed sector that b is the second primary colours rove 2.In Fig. 3, Each sectorial area is:

$S_{\mathrm{\α}}=\frac{1}{2}*a*R---\left(11\right);$

$S_{\mathrm{\β}}=\frac{1}{2}*b*R---\left(12\right);$

Then the ratio of the arc length that diyl color fibre is distributed at yarn excircle is equal to each component fiber institute in yarn cross section Account for area ratio, be also equal to the blending ratio of diyl color fibre in colour-spun yarns, it may be assumed that

S_α:S_β=a:b=κ_a:κ_b (13)。

As it is shown in figure 5, be colour-spun yarns outer circumference surface schematic diagram.Assuming that two primary colours being distributed in colour-spun yarns face of cylinder outer layer are fine Dimension occupied area is respectively P_α、P_β.One twisting helix line pitch of spinning of filling in colors on a sketch is h, then:

$h=\frac{1}{N_Z}---\left(14\right);$

And h=a'+b'(15)；

If θ is twisting helix line helical angle, then:

$tan\mathrm{\θ}=\frac{a}{a^{\′}}=\frac{b}{b^{\′}}---\left(16\right);$

Can be obtained by formula (16):

$\frac{a}{b}=\frac{a^{\′}}{b^{\′}}---\left(17\right);$

Then can draw area ratio that diyl color fibre is distributed in yam surface equal to the distribution of diyl color fibre width it Ratio.

That is:

P_a:P_b=a':b'=a:b (18)；

Can be obtained by formula (13):

P_a:P_b=a:b=κ_a:κ_b (19)。

Formula (19) illustrates, gathers groove control by two passage feed carriers, the two asynchronous drafting systems of passage and two passages Path that each rove yarn moves longitudinally in asynchronous drawing-off, coaxial twisting process and the metastatic rule laterally converging twisting, Can ensure that the area ratio of colour-spun yarns top layer diyl color fibre is equal to the blending ratio of diyl color fibre in colour-spun yarns.

As shown in Figure 6, for the colour-spun yarns mould of two primary colours juxtaposition colour mixtures based on two passages asynchronous drawing-off Compact Spinning yarn feeding device Type, in twist pitch length h, the distribution length of color fibre A and color fibre B is as shown in table 1.

Color segment length in table 1. twist pitch

Color fibre A distribution length	A=κa×h
		Color fibre B distribution length	B=κb×h
Two primary colours A, B juxtaposition color blending effects	Depend on Pa:PbOr a:b

Therefore, when producing colour mixture section coloured yarn based on two passages asynchronous drawing-off Compact Spinning yarn feeding device, by regulation and control twisting pitch The area P of interior each color fibre distribution_a:P_bOr the size of length a:b value, it is possible to control colour mixture section coloured yarn and form different spaces Juxtaposition color blending effect, is shown in Table 2.

The colour-spun yarns color that table 2. diyl color contamination dyed yarn juxtaposition colour mixture realizes

In spinning process, if the twisting point that crosses of two rove yarns can move about along with the change of draft ratio, then Stable twist triangle zone cannot be formed, make pitch h and the helixangleθ change at random of twisting helix line, on the one hand can cause color The randomness of fiber distribution, on the other hand causes yarn actual twist suddenly big or suddenly small and deviation theory value, then: P_a:P_b≠a':b' ≠a:b≠κ_a:κ_b.Now, colour-spun yarns color blending effect and the blending ratio of each primary colours fiber are without direct correlation.

The present invention by carrying out guide and gathering control to the two of asynchronous drawing-off rove yarns, to keep twisting point fixing With stablizing of twist triangle zone, put before this, during spinning, use different color fibre distribution length, Ji Kegai at different periods Become the juxtaposition color blending effect of diyl color fibre mixed yarn, thus produce colour mixture section coloured yarn.

Embodiment two:

Select Xinjiang medium staple cotton or long-staple cotton, respectively two colors of dye, produce to rove by general comb or combing.By two The rove of individual color feeds the drawing-off-twisting-reel system of a spinning ingot simultaneously.Two passages asynchronous drawing-off Compact Spinning yarn feeding device Can carry out asymmetric asynchronous drawing-off according to two rove of color mixture comparison, two bundle yarns converge with gathering groove through accumulator again After Ju, twisting forms the colour mixture section coloured yarn than change.

If textured yarn density T_s=350tex, section coloured yarn line density T_y=25tex, twist N_z=760 twists/m, ingot speed N_D= 7600 revs/min, Yarn twisting spiralization cycle length h=1/N_z=1000/760=1.32mm, front roller shaping linear velocity V_q=10 M/min.Implement step as follows:

(1) two primary colours section coloured yarn colors section colour mixture when segment length design:

Section coloured yarn colors section colour mixture when section coloured yarn length is as shown in table 3.

Table 3. colour mixture when section coloured yarn length

The length of colors section when L is equal length in table 3, the shaping time of colors section front roller when t is equal length；L₁、L₂、 L₃、L₄、L₅、L₆、L₇、L₈、L₉、L₁₀、L₁₁The length of colors section, t when being respectively unequal length₁、t₂、t₃、t₄、t₅、t₆、t₇、t₈、t₉、 t₁₀、t₁₁The shaping time of correspondence colors section front roller when being respectively unequal length.

(2) each roving-drafting ratio:

If total stretch ratio is E, back area draft compares E₁, proparea drafting multiple E₂, the most each roving-drafting ratio is shown in Table 4.

Table 4. day part roving-drafting ratio

E in table 4_aFor the total stretch ratio of rove A, E_a1For the back area draft ratio of rove A, E_a2For the proparea draw ratio of rove A, E_bFor the total stretch ratio of rove B, E_b1For the back area draft ratio of rove B, E_b2Proparea draw ratio for rove B.

(3) distribution length of A, B color fibre in twist pitch:

A, B color fibre distribution length in table 5. day part twist pitch

(4) regulating effect of day part section coloured yarn spatial juxtaposition colour mixture:

1, color section 1:

As it is shown in fig. 7, when diyl color fibre is distributed in area ratio P of yarn outer layer_a:P_bDuring for 10:0, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Fig. 7 and is mixed to form the color blending effect of color section 1.

2, color section 2:

As shown in Figure 8, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 9:1, then A color, B color fibre Dimension carries out juxtaposition in yam surface according to the pattern shown in Fig. 8 and is mixed to form the color blending effect of color section 2.

3, color section 3:

As it is shown in figure 9, when diyl color fibre is distributed in area ratio P of yarn outer layer_a:P_bDuring for 8:2, then A color, B color fibre Dimension carries out juxtaposition in yam surface according to the pattern shown in Fig. 9 and is mixed to form the color blending effect of color section 3.

4, color section 4:

As shown in Figure 10, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 7:3, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 10 and is mixed to form the color blending effect of color section 4.

5, color section 5:

As shown in figure 11, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 6:4, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 11 and is mixed to form the color blending effect of color section 5.

6, color section 6:

As shown in figure 12, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 5:5, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 12 and is mixed to form the color blending effect of color section 6.

7, color section 7:

As shown in figure 13, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 4:6, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 13 and is mixed to form the color blending effect of color section 7.

8, color section 8:

As shown in figure 14, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 3:7, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 14 and is mixed to form the color blending effect of color section 8.

9, color section 9:

As shown in figure 15, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 2:8, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 15 and is mixed to form the color blending effect of color section 9.

10, color section 10:

As shown in figure 16, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 1:9, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 16 and is mixed to form the color blending effect of color section 10.

11, color section 11:

As shown in figure 17, it is distributed in area ratio P of yarn outer layer when diyl color fibre_a:P_bDuring for 0:10, then A color, B color Fiber carries out juxtaposition in yam surface according to the pattern shown in Figure 17 and is mixed to form the color blending effect of color section 11.

Claims (9)

1. a two passages asynchronous drawing-off Compact Spinning yarn feeding device, is characterized in that: include that the two asynchronous drafting systems of passage, two passages are led Yarn feeding device and two passage apparatus for collecting；

The described two asynchronous drafting systems of passage include combining rear roller, middle roller (8) and front roller (10), and combination rear roller is by solely Vertical the first rear roller (4) driven and the second rear roller (5) composition；

Described two passage apparatus for collecting are positioned at the outfan of front roller (10), gather groove special pipe including grid ring and two passages (11), gathering groove special pipe (11) surface at two passages and be provided with two passages and gather groove, two passages gather groove and include two in angle Arrange gathers groove, and two ends gathering groove are intersected in yarn joint (C).

Two passage the most as claimed in claim 1 asynchronous drawing-off Compact Spinning yarn feeding device, is characterized in that: described two folders gathering groove Angle is 7 °～9 °, and two width (a, b) gathering groove are 1.2mm～1.5mm, two width gathered between trough end (A, B) Degree is 2.4～3mm, and two ends gathering groove are the circular arc of radius 1.5～2mm.

Two passage the most as claimed in claim 1 asynchronous drawing-off Compact Spinning yarn feeding device, is characterized in that: described two passage feed carriers Including horn mouth (3), two passage yarn guides (6) and lever jack (9) after two；After described two, horn mouth (3) is arranged at combination The input of rear roller, has two holes allowing two primary colours rove to pass through on horn mouth (3) after two；Described two passage guides Device (6) is arranged between combination rear roller and middle roller (8), two passage yarn guides (6) has two and allows two primary colours rove The passage passed through；Described lever jack (9) is arranged between middle roller (8) and front roller (10), lever jack (9) has left and right Two, side passage.

Two passage the most as claimed in claim 1 asynchronous drawing-off Compact Spinning yarn feeding device, is characterized in that: on described middle roller (8) It is cased with drafting apron (7).

5. a colour-spun yarns diyl color contamination chromatic effect regulation and control method, is characterized in that, uses two passages asynchronous drawing-off boundling spinning dress Put, comprise the following steps:

(1) drive the first rear roller (4) and the second rear roller (5) respectively with linear velocity V_ha、V_hbRotating, middle roller (8) is with linear speed Degree V_zRotating, front roller (10) is with linear velocity V_qRotate；

(2) with in of the same colour section, the ratio V of the linear velocity of the first rear roller (4) and the second rear roller (5) is kept_ha/V_hbIt is worth constant, Then realize the first primary colours rove (1) and draw ratio E of the second primary colours rove (2)_a:E_bThe colour mixture of value and two primary colours colour-spun yarns compares k_a/ k_bIt is worth constant；

(3) the rove yarn that two draw ratios being exported by front roller (10) are constant is intersected in twisting by two passage apparatus for collecting Point, forms stable twist triangle zone, and the colour-spun yarns obtained pitch h and helixangleθ in of the same colour section is constant；

(4) based on above-mentioned with pitch h in of the same colour section and helixangleθ constant in the case of, by adjust the first primary colours rove (1), The drawing-off ratio of the second primary colours rove (2), obtains the two primary colours colour-spun yarns with multiple color section, and each color section has corresponding mixed Color ratio.

6. colour-spun yarns diyl color contamination chromatic effect regulation and control method as claimed in claim 5, is characterized in that: pitch in of the same colour section In length h, the distribution length of the first primary colours rove is a=κ_a× h, the distribution length of the second primary colours rove is b=κ_b×h。

7. colour-spun yarns diyl color contamination chromatic effect regulation and control method as claimed in claim 5, is characterized in that: described two primary colours colour-spun yarns The area ratio of the diyl color fibre on top layer is equal to the colour mixture ratio of diyl color fibre in colour-spun yarns.

8. the colour mixture section coloured yarn using claim 5 to obtain, is characterized in that: described section coloured yarn is by the first primary colours fiber and the second base Color fibre forms multiple color sections through drawing-off, twisting；In same color section, the first primary colours fiber and pitch h of the second primary colours fiber Constant with helixangleθ.

9. colour mixture section coloured yarn as claimed in claim 8, is characterized in that: described first primary colours fiber and the second primary colours fiber are in section The area ratio of color external layer of yarn is equal to the first primary colours fiber and the colour mixture ratio of the second primary colours fiber.