JPH0699852B2 - Adsorption twisting spinning device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multi-passage roller for adsorbing fibers opened in an adsorption twisting / spinning apparatus onto a surface of a multi-passage roller and twisting the fibers with a non-perforated roller. It concerns pores.

2. Description of the Related Art By spreading adsorbed fibers on the surface of a ventilation roller (31) having air permeability, and by pulling out the adsorbed fiber in the axial direction from the ventilation roller (31) while rotating the ventilation roller (31). It is known, for example, from Japanese Patent Application Laid-Open No. 52-12338 (FIGS. 14 to 16) to twist the adsorbent fiber while twisting it. Further, there are two rotating bodies, one rotating body (33) rotates in a direction to enter the closest clearance, and the other rotating body (32) rotates in a direction to exit, and a wedge-shaped space along the roller axis line. A method for twisting fibers supplied into Q to produce a yarn, and a fiber supply duct (34) for supplying fibers to a wedge-shaped space Q drops onto a yarn on which some fibers are being formed directly. In addition, the fiber discharge port (35) is biased toward the porous roller (33) side so that many fibers are directed toward the porous roller side in the wedge-shaped space. It is known from -183421 (Figs. 12 and 13).

Further, in Japanese Patent Laid-Open No. 54-160831 (FIGS. 17 to 19), as shown in FIG. 17, the fibers opened by the opening roller are caused by the air flow generated in the fiber supply passage. Exhaust device inside the drum that rotates in the same direction and is directed towards the smallest gap formed between two hyperbolic sheave drums with many vents, near the closest position of both hyperbolic sheave drums. Although the fibers are attached to the surface of the drum and twisted as a yarn, the fibers are twisted around the core yarn drawn out from the supply bobbin by the transport mechanism to form a yarn. In FIG. 18, instead of the sheave drum shown in FIG. 17, a cylindrical drum having many ventilation holes on one side and a hyperbolic body having many ventilation holes adapted to the adjacent cylindrical drum on the other side. Is. Fibers that have spread and flew on the drum surface are attached to the drum surface by an exhaust device provided near the closest position of the combined rotary body, and twisted as a thread.

Problems to be Solved by the Invention In such a conventional technique, for example, Japanese Patent Application Laid-Open No. 52-1233
In 8, the air is not fed into the fiber supply duct (34), but the fibers are separated by the centrifugal force due to the rotation of the opening roller, and the ventilation roller (3
1) Fibers are adsorbed on the surface, but air is admitted through the gap between the duct (34) for adsorbing the fibers and the surface of the ventilation roller (31) and between the suction pipe (36) and the ventilation roller (31). Enter, and require a large amount of suction air, and the fiber adsorption efficiency is poor.

Further, in Japanese Patent Laid-Open No. 57-183421, a suction device is provided separately from the perforated roller (33) to direct the fibers from the fiber supply duct in the longitudinal direction of the roller. And the twisting efficiency is reduced, and air easily enters through the gap between the duct (34) and the roller, so that the adsorbing effect on the perforated roller (33) is poor.

Further, in the case of JP-A-54-160831, since the hyperbolic sheave drum or the cylindrical drum is rotating at high speed, the ventilation from the ventilation hole of the drum to the exhaust device inside the drum is poor, and in order to obtain the required ventilation amount. The air pressure in the exhaust system must be reduced. Further, as a method for that purpose, it is necessary to increase the suction force at the intake source, and there is a tendency to further increase the power consumption.

Means for Solving the Problems In the present invention, the opened fibers are aligned in the same direction and fed to the twisting section for stretching, and the fibers focused on the twisting section are strongly adsorbed to the surface of the perforated roller, resulting in large friction. By twisting with a force, the suction efficiency of the suction pipe in the porous roller is increased, the twisting efficiency is improved, and a uniform and strong yarn with a uniform fiber direction is manufactured. Under the condition that the vent diameter and the opening rate are the same,
The purpose is to improve the air permeability during rotation of the perforated roller and reduce the power consumption of the intake source required for suction.

In order to achieve this object, in the present invention, a nozzle is provided in the fiber passage of the fiber supply device, and compressed air is jetted from the outer periphery of the nozzle to adsorb the fiber from the fiber supply duct to one porous roller of the twisting roller. In addition, when the direction of the vent holes of the perforated roller is viewed from the axial direction of the perforated roller, the inner wall surface side of the perforated roller is opened ahead of the phase of the outer wall surface side in the rotational direction.

When viewed in the direction perpendicular to the axis of the fiber opening roller, the angle α formed by the extension line of the central axis of the fiber passage connecting the outer periphery of the fiber opening roller and the thread forming portion and the thread forming line of the wedge-shaped space formed by both rollers is A nozzle is provided in a part of the fiber passage so that it intersects the yarn forming line at an acute angle, and the fiber passes through the nozzle along with the air flow, and the nozzle outer peripheral portion is compressed along the longitudinal direction of the fiber supply duct inner wall surface. I tried to blow out the air.

Further, in this device, the suction port of the suction pipe inside the porous roller and the fiber discharge port of the fiber supply duct should face each other at substantially the same position in the longitudinal direction of the porous roller with the ventilation hole of the porous roller interposed therebetween. I chose

Action Since the present invention has such a configuration, the fibers opened by the opening roller are guided to the fiber supply duct through the nozzle, and here, by the ejection of compressed air from the outer peripheral portion of the nozzle. It passes through the fiber passage formed by the fiber supply duct and reaches the fiber outlet. At this time, a long hole is bored in the suction pipe inside the multi-hole roller which is one of the twisting rollers, and the long hole is provided substantially parallel to the generatrix of the multi-hole roller, and is provided so as to face the fiber discharge port. The fibers flying in the stretched state onto the surface of the porous roller are attached without being bent. At the same time, the suction action of the elongated holes provided substantially parallel to this also changes the suction action in a state substantially parallel to the generatrix and the fibers are received on the surface of the perforated roller.

Here, the fibers on the surface of the porous roller and attached near the end of the yarn drawn to the yarn drawing roller side are entangled with the end of the yarn wound on the yarn drawing roller side, and further at the initial stage of this yarn formation. The fiber bundle in the state is rolled by the perforated roller and the non-perforated roller, and receives the frictional force of both rollers,
A rolling force is applied to the yarn at the initial stage of formation, the yarn is formed while promoting twisting, and the yarn is wound around the winding roller as a yarn.

A cross-sectional view perpendicular to the axis of the opening roller, that is, the fiber passage center axis formed by connecting the outer periphery of the opening roller and the center of the nozzle when viewed in FIG. 1, and the thread forming line of the wedge-shaped space formed by the perforated roller and the non-perforated roller. By setting the intersection angle α with the opening angle to an acute angle, the spread fibers that have left the spread roller are compressed along the longitudinal direction of the inner wall surface of the fiber supply duct from the outer peripheral portion of the nozzle provided in a part of the fiber passage. The yarn is stretched by air and twisted on the end of the yarn adsorbed without being bent on the surface of the porous roller to be drawn out as a yarn.

Further, as shown in FIG. 2, when viewed from the side of the yarn drawer,
That is, when viewed from the axial direction of the perforated roller and the non-perforated roller forming the twisting roller, the fibers opened are fed into the wedge-shaped space formed by the surfaces of the perforated roller and the non-perforated roller, where the yarn drawing roller side The yarn end that is drawn out is entangled, and a frictional force is applied between the peripheral surface of the perforated roller and the peripheral surface of the non-perforated roller, and twisting is performed to form a yarn.

In order to improve the adsorption of fibers to the perforated roller and enhance the twisting efficiency, it becomes possible to direct the fiber outlet in the wedge-shaped space toward the perforated roller side, and the ventilation holes of the perforated roller are When viewed from the axial direction of the perforated roller, the inner wall surface side of the perforated roller precedes the outer wall surface side in the rotational direction when viewed from the axial direction of the perforated roller. Make sure the fiber is adsorbed to the roller. In this way, the fibers adsorbed on the perforated roller are entangled with the yarn end on the drawn yarn forming line and rolled to be twisted as a yarn, whereby strong yarn formation is performed.

EXAMPLE An explanation will be given based on FIG. 1 to FIG. 11 in which the present invention is carried out.
In FIG. 3, (1) is a support base, and two fitting holes (2) and (3) are formed adjacent to each other in the support base (1), and one fitting hole (2) is a cylinder. -Shaped support tube (4) is attached to its proximal end. Further, a cylindrical suction pipe (5) which also functions as a support cylinder is inserted and fixed in the other fitting hole (3). The suction pipe (5) has its proximal end connected to an intake source (not shown), and has a narrow suction port (5a) extending along the longitudinal direction at a position adjacent to the support cylinder (4). Has been formed. A bearing (6) is attached to the support cylinder (4) and a rotating shaft (8) is fitted therein. The suction pipe (5) has a small inner diameter at its tip, and a housing (7a) for accommodating the bearing (7) is fitted to the small diameter portion, and the bearing (7) has a rotating shaft (9). ) Is fitted.

A non-perforated roller (10) as a twisting roller is rotatably fixed to the protruding end of the one rotating shaft (8) at a base end mounting portion (11) along the outer circumference of the support cylinder (4). ing. The non-perforated roller (10) has an outer peripheral surface to which a covering member (10a) made of an elastic material such as polyurethane is adhered. Further, a perforated roller (12) as a twisting roller is fixed to the protruding end of the other rotary shaft (9) along the outer circumference of the suction pipe (5) at a base end mounting portion (13). The non-perforated roller (10) and the perforated roller (12) are rotated in the same direction by pressing the base end mounting portions (11) (13) against the drive belt (14).

On one side of the non-perforated roller (10) and the perforated roller (12), a fiber supply having a tip portion formed in a shape corresponding to a wedge-shaped space Q in which both rollers (10) and (12) are formed close to each other. A fiber supply device (18) having a duct (15) is arranged so as to face the wedge-shaped space Q. An opening roller (19) is arranged on the upstream side of the fiber supply duct (15) so that it can rotate at high speed, and a grooved roller (20) and a spring (21) are provided.
The sliver (23) supplied by the action of the presser (22) that is pressed and biased by the grooved roller (20) is opened and fed into the fiber passageway (16). The fibers fed into the fiber passage (16) enter the inside of the nozzle (17) attached to the intermediate portion of the fiber passage (16).

By ejecting compressed air from the outer circumference of the nozzle (17) along the longitudinal direction of the inner wall surface of the fiber supply duct (15),
The fibers coming out of the nozzle (17) are drawn out and fed into the fiber supply duct (15). The fibers are discharged from the fiber discharge port of the fiber supply duct (15) and attached to the surface of the perforated roller (12).

In this case, the cross-sectional shape of the fiber passage (16) through which the fibers flow is
The upstream section close to the opening roller (19) has a rectangular cross section, the ejection section of the nozzle (17) has a circular section, and the downstream fiber supply duct (15) has a fiber outlet along the generatrix of the perforated roller (12). It is a long hole and is located at almost the same position as the long hole (5a) of the suction pipe (5) inside the multi-hole roller (12).

At this time, an angle α at which the central axis of the fiber passageway (16) and the direction in which the yarn Y is drawn, that is, the yarn forming line Y _L intersect is set to an acute angle, and the yarn drawing roller (2
4) and the winding device (25) are arranged.

The fiber outlet of the fiber supply duct (15) on the extension of the central axis of the fiber passage (16) should be as close as possible to the perforated roller, and the wall surface of the fiber supply duct (15) should be free from the perforated roller (12). The air is prevented from entering from the outside of the fiber supply duct (15) by approaching the outer periphery of the perforated roller (10), and the long hole of the fiber outlet is provided in the suction pipe (5) inside the perforated roller (12). It becomes necessary to face the elongated hole forming the suction port (5a).

Then, the air is sucked from the suction port (5a), and the fibers are adsorbed to the outer periphery of the porous roller (12). At this time, the ventilation holes (of the porous roller (12) when the porous roller (12) is viewed from the axial direction ( In the case of 12a), the inner wall surface side precedes the outer wall surface phase in the direction of rotation so that the inner wall surface can be slanted.

Although the present invention has such a structure, the sliver (23) is fed to the opening roller (19) at a constant speed by the cooperation of the grooved roller (20) and the presser (22). The supplied sliver (23) is opened by the opening roller (19) and fed into the fiber passageway (16). Fiber passages (16)
The fibers fed into the fiber enter the inside of the nozzle (17) attached to the middle part of the fiber passage (16), and extend from the outer periphery of the nozzle (17) along the longitudinal direction of the inner wall surface of the fiber supply duct (15). By ejecting the compressed air, the fibers emitted from the inside of the nozzle (17) are drawn out and fed into the fiber supply duct (15).

The fibers are stretched as they are drawn from the interior of the nozzle (17) by compressed air. The stretched fibers are discharged from the fiber discharge port of the fiber supply duct (15) and adsorbed on the surface of the porous roller (12).

The crossing angle α between the axis ZZ of the fiber passage [substantially coincident with the center line of the nozzle (17)] and the yarn forming line Y _L is an acute angle (according to the experiment, preferable yarn is α = 10 ° to 45 °). When the fiber is pulled out from the nozzle (17) in the fiber passageway (16), the stretched fiber is not bent and the surface of the perforated roller (12) has a predetermined strength. It is attracted to the position.

Here, the suction port (5a) of the suction pipe (5) and the fiber discharge port of the fiber supply duct (15) are substantially at the same position with the porous roller (12) interposed in the roller longitudinal direction. 12) Adhesion of fibers to the perforated roller (12) is accurately performed without bending the fibers adsorbed on the surface. When the perforated roller (12) is viewed from the axial direction, the vent hole (12a) of the perforated roller (12) is formed obliquely on the inner wall surface side ahead of the outer wall surface side phase. Air resistance in 12a) can be reduced. Therefore, the intake pressure at the intake source can be reduced. Then, the fibers that are evenly adsorbed in parallel with the predetermined position of the porous roller (12) are compressed by the suction action of the suction pipe (5) and the nozzle (17) on the outer periphery of the fiber passage (16). The air is strongly adsorbed to the surface of the perforated roller (12), and the fed and attached fibers are entangled with the fibers of the yarn end being formed on the surface of the perforated roller (12) to form a yarn.

The fibers in the initial stage of thread formation thus entwined with the thread are adsorbed on the surface of the perforated roller (12), contact the surface of the non-perforated roller (10), and form the thread Y by rotating both rollers in the same direction. A twisting frictional force is imparted.

Thus, the yarn being formed by the frictional force of both rollers is rolled and twisted around a line parallel to the axial direction of both rollers as the rotation axis, and is drawn out as the yarn Y by the draw-out roller (24) and wound up. The yarn package P is wound by the device (25).

EFFECTS OF THE INVENTION The present invention is configured as described above, ejects compressed air from the outer periphery of the nozzle, and surrounds and sends fibers in a ring shape, so that the fibers are less likely to touch the wall surface of the fiber supply duct, and
Since the angle α of the fiber passage connecting the outer circumference of the fiber-spreading roller and the yarn forming portion intersects the yarn forming line at an acute angle, the fibers accumulated on the surface of the perforated roller due to the suction action of the suction pipe do not bend and are even. Therefore, a uniform and strong yarn can be manufactured.

Further, since the suction port of the suction pipe inside the porous roller and the fiber discharge port of the fiber supply duct are located at substantially the same position in the longitudinal direction of the porous roller, the flying direction of the fiber and the suction port inside the porous roller are also improved. Since the direction of the air holes of the perforated roller that guides the air flow to the perforated roller is inclined and formed in the same direction, it is possible to reduce the air resistance in the air holes of the perforated roller, which improves the airflow efficiency and suction. It is also possible to reduce the power consumption of the intake source that creates an air flow in the pipe. In addition, the fibers can be uniformly adsorbed and deposited on the surface of the porous roller, and the suction energy from the suction pipe can be effectively used without waste.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention.
FIG. 1 is a front view of the main part of the device of the present invention, and FIG. 2 is a plan view thereof. Further, FIG. 3 is a cross-sectional view taken along the line S-S of FIG. 2, showing a porous roller and a non-perforated roller in an axial cross section. Further, FIG. 4 is a cross-sectional view taken along the line RR of FIG. 3, and is a transverse cross-sectional view of the perforated roller and the non-perforated roller. Also,
FIGS. 5 to 11 are cross-sectional views of the fiber passage. The U-U section in FIG. 1 is shown in FIG. 5, and the V-V section is shown in FIG.
Fig. 7, W ₁ -W ₁ cross section in Fig. 7, W ₂ -W ₂ in Fig. 8, W _3-
The W ₃ cross section is shown in FIG. 9, and the view taken along the line XX, which is the fiber outlet, is shown in FIG.
FIG. 10 and FIG. 11 show the axial ZZ section of the fiber passage. Further, FIGS. 12 to 19 show examples of the prior art,
12 and 13 are side views of a technique in which fibers are sucked in the direction of the axis of the twisting roller to align the fed fibers, and the fibers attached to the twisting roller are pulled out. Fig. 14-Fig.
Fig. 15 is a side view and a cross-sectional view of a technique in which fibers are directly fed to a ventilation roller in a direction parallel to the yarn drawing direction, and Fig. 16 is a part of the fiber supply duct in the case of Fig. 15. FIG. 7 is a transverse cross-sectional view when the friction roller is deformed and a friction roller is provided. Further, FIGS. 17 to 19 show an essential part of a spinning method using a hyperbolic sheave drum, and FIG.
A front view when using a pair of hyperbolic sheave drums,
FIG. 18 is a front view of a combination of a hyperbolic perforated roller and a cylindrical perforated roller, and FIG. 19 is a cross-sectional view showing a part of the roller. 4: Support cylinder, 15: Fiber supply duct 5: Suction pipe, 16: Fiber passage 5a: Suction port, 17: Nozzle 10: Non-perforated roller, 18: Fiber supply device 12: Perforated roller, 19: Opening roller 12a: Vents, 20: Grooved roller 14: Drive belt, 22: Presser 23: Sliver 24: Pull-out roller 25: Winding roller P: Winding package Y: Thread Y _L : Thread forming wire

Claims (1)

[Claims] 1. Fibers opened by a spreading roller are adsorbed to the twisting roller in a wedge-shaped space formed by outer peripheral surfaces of a pair of twisting rollers arranged adjacent to each other and rotating in the same direction. In the adsorption twisting and spinning device, which is subjected to a twisting action and spun out as yarn, the fibers are discharged from the fiber supply duct and adsorbed on the perforated roller that constitutes the twisted roller, and the direction of the vent holes in this perforated roller Is viewed from the axial direction of the perforated roller, and the inner wall surface side is opened ahead of the outer wall surface side in the rotational direction by the phase of the outer wall surface side.