JPS61186533A - Suction twist spinning apparatus - Google Patents

Abstract

PURPOSE:To enable the effective utilization of an expensive porous roller, by providing a rotating porous roller at the outside of a suction pipe, and placing a pair of nonporous rollers rotating in the same direction close to the porous roller, thereby forming the frictional spinning regions in two parts. CONSTITUTION:A rotary roller (cylinder) 16 having a number of suction pores 16a is placed outside of the suction pipe 22, and a pair of nonporous rollers 18, 19 rotating in the same direction as the porous roller 16 are placed close to said roller 16. Suction slits 22a, 22b are placed close to the suction pipe 22. Opened short fibers are supplied to the wedge spaces R1, R2 formed by the porous roller 16 and the nonporous rollers 17, 18. The frictional spinning can be carried out at two parts on the expensive porous roller 16.

Description

DETAILED DESCRIPTION OF THE INVENTION Purpose of the Invention (Field of Industrial Application) The present invention is directed to the invention, in which spread fibers supplied from a fiber supply device are applied to the outer periphery of a pair of heating rollers that are arranged adjacent to each other and rotate in the same direction. This invention relates to an adsorption/heating spinning device in which the yarn is spun as a yarn by being subjected to a heating action while being adsorbed by a heating roller having an air-absorbing peripheral surface in a wedge-shaped space formed by a surface.

(Prior art) An example of this type of adsorption heating spinning device is
It is disclosed in Publication No. 05. In this conventional device, as shown in FIG. 8, a heating roller 1 having a large number of intake holes 1a on the circumferential surface and a heating roller 2 without holes are arranged adjacent to each other, and are fixed to the shafts of both rollers 1 and 2. timing pulley l
b, 2a are connected to drive pulleys 5a, 5b of the motor 5 via timing belts 3.4, respectively. That is, the double-jaw thermal rollers 1.2 are rotated in the same direction by one motor 5. Then, fibers opened by a fiber opening device (not shown) are sent from the fiber supply channel 6 toward a wedge-shaped space R on the side into which the circumferential surface of the heating roller 1 enters out of the wedge-shaped space formed between both rollers 1.2. It is supposed to be released.

A suction pipe 7 is disposed inside the heating roller 1, and its suction lower a is disposed on the wedge-shaped space R side. Therefore, the spread fibers supplied into the wedge-shaped space R are attracted onto the circumferential surface of the heating roller 1 corresponding to the suction lower a, and are heated by the rotation of both rollers 1 and 2 to form a fiber bundle S. The fiber bundle S is pulled out from within the stalk-shaped space R by a pair of pull-out rollers while being heated, and is wound into a thread into a package.

That is, in this conventional device, a pair of heating rollers 1
．． 2 and one fiber supply channel 6 constitute a spinning unit capable of spinning one yarn.

(Problems to be Solved by the Invention) In a spinning unit having such a configuration, the number of heating rollers 1 having intake holes 1a on the circumferential surface is one per one spinning unit.
However, extremely high manufacturing precision is required for the heating roller 1, which has a great influence on the quality of the spun yarn, and an increase in cost is unavoidable. Therefore, as long as the above-described configuration is adopted as the adsorption heating spinning device, the cost of the spinning unit per spun yarn is high, and it is difficult to reduce the cost.

Structure of the Invention (Means for Solving Problems) Therefore, in the present invention, two heating rollers each having a non-breathing peripheral surface are attached to the heating roller so as to sandwich the heating roller having a suctioning peripheral surface. The heating rollers are arranged adjacent to each other, and each of the heating rollers is rotated in the same direction, so that the side of the wedge-shaped space formed between the adjacent heating rollers is the side into which the suction peripheral surface enters as the heating rollers rotate. A spinning unit was constructed by providing two sets of fiber supply devices that respectively supplied spread fibers to two wedge-shaped spaces.

(Function) In other words, there are four wedge-shaped heating rollers between the heating roller with the suction peripheral surface and the 21Vi heating roller with the non-breathing peripheral surface disposed adjacent to both sides of the roller. A space is formed. These three heating rollers are rotated in the same direction, and the spread fibers are supplied from the fiber supply device into the two wedge-shaped spaces into which the suction peripheral surface enters among the four wedge-shaped spaces. The wedge-shaped spaces to which the spread fibers are supplied are located on opposite sides of the heating roller having an air-absorbing circumferential surface, and the spread fibers are fed onto the air-absorbing circumferential surface of the heating roller in both horizontal spaces. The fibers are adsorbed and heated by the rotation of the heating roller to form a fiber bundle.

Both fiber bundles are pulled out from within their respective wedge-shaped spaces by a pair of pull-out rollers while being subjected to a combustion action, and wound into threads into respective packages. Therefore, with a spinning unit having such a configuration, it is possible to produce two spun yarns for one heating roller equipped with an air-absorbing peripheral surface, which reduces the cost of the spinning unit per spun yarn. is possible.

(Example) Hereinafter, an example embodying the present invention will be described based on FIGS. 1 to 6.

As shown in Fig. 1, a pair of left and right machine frames 11 make up the machine base.
, 12, a beam 13 is installed on the lower side, and a pair of support brackets 14, 15 are installed on the upper surface of the beam 13.
3 is erected and fixed along the longitudinal direction. On the front side of one support bracket 14 are three heating rollers 16 and 17.
．． 18 and two sets of fiber supply devices 19 and 20 are disposed, and a similar heating roller and fiber supply device are also disposed on the other support bracket 15 side. Therefore, in the following, only one support bracket 14 side will be described in detail.

A suction pipe 22 connected to a suction device 21 shown in FIG. 2 is passed through and supported in the horizontal direction at the center of the support bracket 14, and as shown in FIG.
On the front side of the suction pipe 22, elongated slit-like suction ports 22a and 22b are formed in the vertical direction on opposite sides of the peripheral wall of the suction pipe 22.

A cylindrical bearing 23 is fitted and fixed at the tip of the suction pipe 22, and a shaft 47 is rotatably supported by the bearing 23 so as to project forward. A hollow heating roller 16 having a large number of air intake holes 16a is fitted and fixed to the tip of the coaxial shaft 47 via its mounting cylinder portion 16b.
The outer periphery of 6 is close to the outer periphery of the suction pipe 22 to form the suction port 22a.

22b.

Bearings 24 and 25 similar to the bearing 23 are mounted on the support bracket 14 above and below the suction pipe 22.
Both bearings 24 and 25 have shafts 26 and 26.
．． 27 is rotatably supported so as to protrude toward the front side of the support bracket 14. A hollow heating roller 17 is fitted and fixed to the tip of the upper shaft 26 via its mounting tube 17a, and a covering member made of an elastic material such as polyurethane is fixed to the outer peripheral surface of the roller. There is. The non-breathable outer circumferential surface of the roller 17 is arranged so as to be close to the breathable circumferential surface of the heating roller 16 with a very small distance in the vicinity of the suction port 22a. Further, a hollow heating roller 18 similar to the heating roller 17 is fitted and fixed to the tip of the lower shaft 27 via its mounting cylinder portion 18a, and a similar hollow heating roller 18 as the covering member 28 is attached to the outer circumferential surface of the heating roller 18. A covering member 29 is fixedly attached. The non-suction peripheral surface of the roller 18 is arranged so as to be close to the suction peripheral surface of the heating roller 16 with a slight spacing in the vicinity of the suction port 22b.

As shown in Fig. 4.6, a pair of ring-shaped brackets 30 and 31 are fastened to the suction pipe 22 between the support bracket 14 and the heating roller 16, and both brackets
Support arms 30a and 31a protrude from the side surfaces of 30 and 31 in the common tangential direction of the heating rollers 16 and 17, and 16 and 18. In this embodiment, as shown in FIG. 6, a support arm 30a is provided to protrude to the right between heating rollers 16 and 17, and the other support arm 31a is provided to protrude to the left between heating rollers 16 and 18. Both support brackets 30, 31 are installed. Both arms 30a.

31a is a guide hole 30b which is long in the tangential direction.

31b is formed, and support shafts 32 and 33 are respectively fitted and engaged in the axial direction of the heating roller 16 into both guide holes 30b and 31b. And support arms 30a, 31
guide hole 30b from the tip of a.

Adjustment screws 34 and 35 screwed in direction 31b and support shaft 32
．． The support shafts 32 and 33 are urged toward the common tangential direction of the heating rollers 16 and 17, and 16 and 18 by pressing springs 36 and 37 interposed between them. Support shaft 3
2. At the tip of 3, there is an intermediate roller 3 whose circumferential surface is covered with rubber.
B, 39 are rotatably supported, and one intermediate roller 38 is pressed against the heating roller 16 by the action of the pressing spring 36.
17, the other intermediate roller 39 is pressed against the outer circumferential surfaces of the base ends of both rollers 16 and 17, and the other intermediate roller 39 is pressed against the pressing spring 3.
7, the left side of the heating d-roller 16.1B is pressed against the outer peripheral surfaces of the proximal ends of both rollers 16.1B.

As shown in FIG. 1, a drive pulley 42 is operatively connected to a drive motor 40 via a belt 41 on the right machine frame 12 side, and a tension pulley 43 supported on the left machine frame 11 side is connected to a drive belt. 44 is hung,
As shown in FIGS. 3 and 4, the drive belt 44 is pressed against the mounting cylindrical portion 17a of the uppermost heating roller 17. As shown in FIGS. The drive belt 44 is run in the direction of arrow P in FIG. 3, and the combustion roller 17 is rotated in the direction of arrow Q.

Note that 50 shown in FIG. 1 is a guide pulley for guiding the drive belt 44.

As shown in FIGS. 1 and 3, on both sides of the heating rollers 16, 17 and 18, two sets of fiber supply devices 19 and 20 are disposed in the front surface of the support bracket 14, inverted vertically with respect to each other. Both fiber supply devices 19 and 20 are devices that introduce the sliver 46 drawn out from the sliver can 45 disposed below them through introduction portions 19a and 20a, spread it, and discharge it from fiber supply ducts 19b and 20b. The internal structure of the re-device is the same. As shown in FIGS. 3 and 5, one fiber supply duct) 19b is connected to one of the intermediate rollers 3
The wedge-shaped tip of the duct 19b extends into a wedge-shaped space R1 formed by the outer peripheral surfaces of the adjacent heating rollers 17 and 16. Further, the other fiber supply duct) 20b is disposed in front of the other intermediate roller 39, and the wedge-shaped tip of the fiber supply duct) 20b is located in the wedge-shaped space R2 formed by the outer peripheral surface of the adjacent heating roller 16.18Φ. It is extended inwards. Then, the spread fibers opened in both fiber supply devices 19 and 20 are transferred to the fiber supply device 19 and 20.
- fiber supply channels 19c, 20 in 19b, 20b;
Each wedge-shaped space RL via c.

It is designed to be released into R2.

The spinning units with such a configuration are arranged in exactly the same way on the back side of FIG. 1, and as shown in FIG. 2, the suction pipes 22 forming each spinning unit are connected to the same suction device 21. is connected to.

Now, as the machine is operated, the drive belt 44 runs in the direction of arrow P in FIG. 3, and the upper heating roller 17 is rotated in the direction of arrow Q. The rotation of the roller 17 is transmitted to the middle heating roller 16 via the intermediate roller 38, and further transmitted to the lower heating roller 18 via the intermediate roller 39, and the middle and lower heating rollers 16 and 18 are used to heat the upper heating roller. It is rotated in the same direction as the rotation direction of the roller 17. Therefore, in both of the wedge-shaped spaces R1 and R2, the suction peripheral surface of the heating roller 16 enters into the wedge-shaped spaces R1 and R2, and the non-suction peripheral surfaces of the upper and lower heating rollers 17 and 18 enter the wedge-shaped spaces R1 and R2.
It becomes a shape that separates from.

Fiber supply channel 1 to such wedge-shaped spaces RL and R2
The spread fibers released from 9c and 20c are sent to the suction pipe 22.
The air is attracted onto the outer peripheral surface of the heating roller 16 corresponding to both the suction ports 22a, 22b by the air flow sucked into the suction ports 22a, 22b.

The fiber bundle 31. is formed by suction on the outer peripheral surface of the heating roller 16 due to the suction action of the suction pipe 22 and the frictional action of the heating rollers 16, 17, 18 which rotate in the same direction adjacent to each other. S2
is pulled out along the axis of the heating roller 16, 17° 18 by a pair of pull-out rollers 51 and 52 shown in FIGS. 1 and 2 toward the yarn guide 53 shown in FIG. Upper thread guide 54 and pull-out roller 51 shown in Figure 1
, 52 and become yarns Yl and Y2, which are then passed to the winding roller 5.
5 into a package 56.

That is, two yarns Yl and Y2 are spun from a spinning unit consisting of one heating roller 16 with a suction peripheral surface and two burning rollers with a non-breathing peripheral surface. This improves the yarn production efficiency of the heating roller 16, which inevitably requires high-precision processing because it has a large effect on yarn quality and is therefore expensive, and reduces the number of spinning units per spun yarn. Prices are significantly reduced.

In addition, in this embodiment, since the heating rollers of all the spinning units in one example of the machine are rotated by one drive belt 44 stretched in the longitudinal direction of the machine, the rotational speed of the heating roller between each spinning unit may vary. becomes uniform, and fluctuations in the number of twists between spinning units are suppressed.

Also, when the yarn breaks, the fiber supply channels 19c, 2Q
The spread fibers supplied from c are deposited on the surface of the heating roller in the wedge-shaped spaces R1 and R2, but this deposited fiber mass can be removed by suction from the tip side of the heating roller.
In this embodiment, the heating roller is arranged horizontally and the tip of the heating roller is placed on the front side, so this suction removal operation is easy.

Note that the fibers attached to the surface of the burning roller 16 move between the wedge-shaped spaces R1 and R2, and the amount of fibers in the fiber bundles Sl and 52 in the wedge-shaped spaces R1 and R2 fluctuates, resulting in uneven yarn thickness. However, in this embodiment, the wedge-shaped space R1 of the heating roller 16 having an air-absorbing peripheral surface may
If a roller wrapped with rubber or felt is brought into contact with the surface between , R2, or a rubber plate is applied, the transfer of fibers between the wedge spaces R1 and R2 can be prevented, and the yarn quality as described above can be improved. The decline is avoidable.

Of course, the present invention is not limited to the above-mentioned embodiment. For example, as shown in FIG. 7, the inside of the suction pipe 22 may be divided into two parts corresponding to the suction ports 22a and 22b. The suction air flow in the wedge-shaped spaces R1°R2 is further stabilized, and yarn quality is improved.

Further, in the embodiment described above, the drive belt 44 is pressed against the mounting cylinder portion 17a of the upper heating roller 17, and the heating roller 1
6.17.18 are driven by friction drive using intermediate rollers 3B and 39 from the upper stage to the middle stage to the lower stage, so there may be a slight difference in the rotational speed of the upper and lower heating rollers 17° and 18. However, the mounting cylinder part 1 of the middle heating roller 16
If the driving belt 44 is pressed against the heating roller 16 and driven by the heating roller 16, the rotational speed of the upper and lower heating rollers 17 and 18 will remain the same even if the rotational speed of the upper and lower heating rollers 17 and 18 decreases due to frictional drive. Therefore, the yarn Yl spun from both wedge-shaped cavities aR1 and R2
, Y2, there is no difference in the number of twists, and the yarn quality is constant.

Furthermore, in the present invention, it is also possible to arrange the heating rollers 16, 17, 18 in a horizontally lying state and parallel to each other in the longitudinal direction of the machine stand, or to arrange the heating rollers in a vertical state.

Effects of the Invention As detailed above, in the present invention, two heating rollers having non-breathing peripheral surfaces are disposed on opposite sides of the heating roller having a suctioning peripheral surface, so that the heating roller having a suctioning peripheral surface Two wedge-shaped spaces, which serve as yarn forming sections, are formed on the circumferential surface of one heating roller having a This has the excellent effect of reducing the cost of the unit.

[Brief explanation of the drawing]

1 to 6 show an embodiment embodying the present invention.
The figure is a front view showing an example of a machine, FIG. 2 is a side sectional view, FIG. 3 is a front view showing one spinning unit, and FIG. 4 is an enlarged sectional view taken along line A-A in FIG. 3. Figure 5 is B-B of Figure 4.
6 is a sectional view taken along the line C--C of FIG. 4, FIG. 7 is a longitudinal sectional view showing a separate version of the present invention, and FIG. 8 is a longitudinal sectional view showing a conventional device.

Claims (1)

[Claims] 1. Two heating rollers each having a non-breathing peripheral surface are disposed adjacent to the heating roller so as to sandwich a heating roller having a suctioning peripheral surface, and each of the heating rollers is rotated in the same direction. , two sets of fiber supplies that respectively supply spread fibers to two wedge-shaped spaces formed between adjacent heating rollers, into which the suction peripheral surface enters as the heating roller rotates; Adsorption heating spinning device equipped with a device.