JPH0699853B2 - 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 Adsorbed fibers are adsorbed on the surface of a ventilation roller (31) having air permeability by pulling out the adsorbed fiber from the ventilation roller (31) while rotating the ventilation roller (31) in this state. It is known, for example, from JP-A-52-12338 (FIGS. 5 to 7) to spin fibers while twisting them. 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. -183421 (8th
FIG. 9, FIG. 9).

Further, in Japanese Patent Laid-Open No. 54-160831 (FIGS. 10 to 12), as shown in FIG. 10, the fibers opened by the opening roller are the air generated by the injector in the fiber supply passage. Two hyperboloids that rotate in the same direction due to the flow and have many ventilation holes (a part of the hyperbola is the generatrix and 360
° It is a rotating body that can be rotated and is sent toward the minimum gap formed between the sheave drums of the hyperboloid body (hereinafter referred to as the hyperboloid body) and is inside the drum provided near the closest position of both hyperboloid body sheave drums. Although the fibers are attached to the surface of the drum by the exhaust device 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. 11, instead of the sheave drum shown in FIG. 10, one side is a cylindrical drum having many air holes, and the other side is a hyperboloid body having many air holes adapted to the adjacent cylindrical drum. It is a thing. 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 sent into the fiber supply duct (34), but the fibers are separated by the centrifugal force generated by the rotation of the opening roller, and the fibers are adsorbed on the surface of the ventilation roller (31) by the intake flow inside the porous roller. The ventilation roller (3
The ducts (3)
4) and the gap between the ventilation roller (31) surface, suction pipe (3
Air enters through the gap between 6) and the ventilation roller (31), requires a large amount of sucked air, and has a low fiber adsorption force.

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. The frictional force with and weakens the twisting efficiency, air easily enters through the gap between the duct (34) and the roller, and the adsorbing force to the perforated roller (33) is weak.

Furthermore, in the case of JP-A-54-160831, since the combination of a hyperboloidal body sheave drum and a hyperboloidal body sheave drum or a cylindrical drum and a hyperboloidal body sheave drum, the joint between both drums and the fiber supply duct becomes a curve, and a gap is created. It is difficult to make the size small, the amount of air invading through the gap increases, and the exhaust amount of the exhaust device must be increased in order to obtain the required air amount. Therefore, it is necessary to further increase the power for driving the compressor in the suction source.

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, the fibers are discharged from the fiber supply duct and adsorbed on at least one perforated roller constituting the twisting roller, and the fibers are rolled toward the wedge-shaped space by the rotation of the rollers. As seen from the axial direction of the perforated roller, the direction of the vent holes of the perforated roller is set so that the outer wall surface side is ahead of the phase of the inner wall surface side in the rotational direction and is obliquely opened.

When viewed from the direction orthogonal to the axis of the fiber opening roller, the angle α formed by the extension line of the central axis of the fiber path 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 It was made to intersect with the forming line at an acute angle.

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 separated by the centrifugal force due to the rotation of the opening roller, and the fibers are drawn by the suction airflow by the suction pipe inside the porous roller. It is guided to the supply duct and reaches the fiber outlet. A suction pipe is provided inside the porous roller forming at least one of the twisting rollers, and the suction pipe is provided with an elongated hole substantially parallel to the generatrix of the porous roller. The elongated hole faces the fiber discharge port and the suction port. Are provided, the fibers flying to the surface of the porous roller are adsorbed by the porous roller.

Then, 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, receives the frictional force of both rollers, gives the rolling force to the yarn at the initial stage of formation, forms the yarn while promoting the twisting, and transfers it to the winding roller. It is wound up as a thread.

In the cross-sectional view perpendicular to the axis of the fiber opening roller, that is, in the state of FIG. 1, the fiber passage center axis formed by connecting the outer periphery of the fiber opening roller and the center of the nozzle of the fiber discharge port, and the wedge shape formed by the perforated roller and the non-perforated roller By setting the intersection angle α with the yarn forming line of the space to be an acute angle, the spread fiber that has left the spread roller is
It is adsorbed on the surface of the porous roller by the intake air flow from the suction port of the suction pipe.

In order to improve the adsorption of fibers to the perforated roller and enhance the twisting efficiency, it is possible to direct the fiber outlet in the wedge-shaped space in the direction of the perforated roller, and the ventilation holes of the perforated roller are As seen from the axial direction of the perforated roller, the outer wall surface side of the perforated roller that is attracted is made to be slanted ahead of the inner wall surface side in the direction of rotation, so even if a small amount of air is taken in, the fibers can be reliably delivered to the perforated roller. Adsorb to.
In this way, the fibers adsorbed on the perforated roller are entangled with the yarn ends on the yarn forming line and rolled to be twisted as yarns, whereby strong yarn formation is performed.

EXAMPLE An explanation will be given based on FIG. 1 to FIG. 4 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 adapted to rotate in the same direction by being pressed against the drive belt (14) at the base end mounting portions (11) and (13).

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 sent to the fiber passage (16) are sent to the fiber supply duct (15), the fibers are discharged from the fiber discharge port of the fiber supply duct (15), and adhered 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
Although it has a rectangular cross section upstream of the opening roller (19),
The fiber outlet of the downstream fiber supply duct (15) is a long hole along the generatrix of the perforated roller (12) and the long hole (5a) of the suction pipe (5) inside the perforated roller (12). It is almost in the same position.

At this time, an angle α at which the center line of the fiber duct (15) and the direction in which the yarn Y is pulled out, 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.

On the other hand, the fiber discharge port of the fiber supply duct (15) on the extension line of the fiber passageway (16) is made as close to the porous roller (12) as possible, and the wall surface thereof is the porous roller (12) and the non-perforated roller (10). ) Near the outer circumference of the fiber supply duct (1
5) The inflow of air from the outside was suppressed, and the long hole of the fiber discharge port was made to face the long hole forming the suction port (5a) of the suction pipe (5) inside the porous roller (12).

Then, the fibers are adsorbed on the surface of the porous roller (12) by the air flow sucked from the suction port (5a). Perforated roller (1
2) seen from the axial direction, the ventilation holes (12
In step a), the outer wall surface precedes the inner wall surface phase in the direction of rotation and is opened diagonally.

The present invention has such a structure, and its operation will be described below. That is, the sliver (23) is a grooved roller (20).
When the sliver (23) is supplied to the opening roller (19) at a constant speed by the cooperation of the presser (22) and the presser (22), the supplied sliver (23) is opened by the opening roller (19) and the fiber passage ( The fibers are fed into the fiber feed duct (15) and discharged from the fiber discharge port of the fiber supply duct (15) and adsorbed on the surface of the perforated roller (12).

The crossing angle α between the center line of the fiber passage and the yarn forming line Y _L is an acute angle (according to the experiment, a favorable yarn strength was obtained when α = 10 ° to 45 °). The stretched fibers are less likely to be bent at the time of attracting the surface of the roller (12), and the suction port (5a) of the suction pipe (5) and the fiber discharge port of the fiber supply duct (15) are porous in the roller longitudinal direction. It is located at almost the same position with the roller (12) interposed, and the suction force at the suction port (5a) is the same as the fiber supply duct (15).
It effectively acts as a source of air flow that draws out more opened fibers. At this time, the air flowed through the air holes (12a) formed in the perforated roller (12) with almost no resistance to the traveling direction of the fibers, and the intake pressure at the intake source could be reduced.

Then, the fiber bundle adsorbed on the surface of the porous roller (12) is brought into contact with the surface of the non-perforated roller (10), and the fiber bundle adsorbed by the rotation of both rollers in the same direction is twisted by a frictional force.

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 has the above-described constitutional action, and since the angle α of the fiber passage connecting the outer periphery of the fiber-spreading roller and the yarn forming portion intersects the yarn forming line at an acute angle, the suction action of the suction pipe causes The fibers deposited on the surface of the roller have little bending.

Further, 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, and the suction port of the porous roller is seen from the axial direction of the porous roller. Since the outer wall surface is ahead of the inner wall surface in the rotational direction, the inflow of air into the fiber supply duct is smooth, the ventilation efficiency is good, and the power consumed by the suction pipe is also reduced. You can do it. In addition, the fibers can be uniformly adsorbed and deposited on the surface of the porous roller, and the suction energy of 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. Further, FIGS. 5 to 12 show examples of the prior art,
5 and 6 are 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. 7 is a view of the fibers in the case of FIG. 8 and 9 are cross-sectional views of a case where a part of the supply duct is deformed and a friction roller is provided, the fibers are sucked in the direction of the axis of the twisting roller to align the fed fibers. FIG. 3 is a side view and a cross-sectional view of a twisting roller portion of a technique for pulling out fibers attached to the twisting roller. Further, FIGS. 10 to 12 show the main part of the spinning method using the hyperboloid body sheave drum, and FIG.
A front view when using a pair of hyperboloid sheave drums,
FIG. 11 is a front view of a combination of a hyperboloid roller and a cylindrical porous roller, and FIG. 12 is a cross-sectional view showing a part of the roller. 4: Support cylinder, 14: Driving belt 5: Suction pipe, 15: Fiber supply duct 5a: Suction port, 16: Fiber passage 10: Non-perforated roller, 18: Fiber supply device 12: Perforated roller, 19: Fiber opening roller 12a : Ventilation hole, 20: Grooved roller 22: Presser, 24: Pull-out roller 23: Sliver, 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 an adsorption twisting and spinning device that is subjected to a twisting action in a twisted state and spun out as a yarn, the fiber is discharged from a fiber supply duct to be adsorbed by at least one of the perforated rollers constituting the twisting roller, and the fiber is The perforated roller is rolled toward the wedge-shaped space by rotation, and the direction of the perforated roller vent hole is slanted ahead of the rotational direction by the phase of the inner wall surface side on the outer wall side when viewed from the axial direction of the perforated roller. Adsorption twisting and spinning device.