JPH0561368B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Purpose of the Invention (Field of Industrial Application) This invention is directed to a method in which spread fibers supplied through a fiber supply channel are connected to a pair of twisting rollers arranged adjacent to each other and rotating in the same direction. The present invention relates to a twisting roller drive device in an attraction twisting spinning device in which the yarn is spun as yarn by being subjected to a twisting action while being attracted to at least one of the twisting rollers in a wedge-shaped space formed by the surface of the twisting roller.

(Prior Art) Various suction twist spinning devices of this type have been proposed in the past.
As in the device described in Japanese Patent Application Laid-open No. 57-193527, a pair of twisting rollers connects a pulley fixed to each twisting roller and a drive source such as a rotating shaft of a motor using separate belts. The twisting rollers are connected to rotate each twisting roller. However,
Connecting the pulleys of each twisting roller and the drive source using separate belts not only complicates the mechanism, but also makes it extremely difficult to drive multiple twisting rollers with one weight using a single drive source. On the other hand, Japanese Patent Application Laid-Open No. 56-96916 published on August 5, 1988 has the 6th
As shown in the figure, a porous roller 4 adsorbs fibers supplied from a fiber supply device 41 to a position corresponding to a suction port 42a of a suction pipe 42 disposed inside.
3 and a non-porous roller 44, which is disposed adjacent to the perforated roller 43 and rotates in the same direction as the perforated roller to twist the fiber bundle adsorbed and deposited on the surface of the perforated roller 43, is fitted into each roller. One drive belt 46 is wound between the attached pulley and the drive roller 45.
It is designed to be driven by Therefore, in this device, the twisting roller drive mechanism is simpler than in the previous device. However, in this device, the pulleys or rotating shafts of each twisting roller are located inside the drive belt 46, so the drive belt 46
That is, if the pulley is disposed on the yarn pulling-out side of the twisting roller, the drive belt 46 and the spun yarn will interfere with each other, so to avoid this, it is necessary to arrange the pulley on the side opposite to the yarn pulling-out side. However, since the suction pipe is installed on the side opposite to the yarn pull-out side, the diameter of the pulley attached to the perforated roller becomes large, which increases energy loss when rotating at high speed and also increases the running speed of the drive belt. The need arises and durability becomes a problem.

(Problems to be Solved by the Invention) In order to solve the problem of the complexity of the device caused by the conventional device in which each twisting roller is connected to a drive source by a separate belt, the present invention has been developed by using a driving pulley and a twisting roller. When the twisting roller is driven by winding one belt between the pulleys installed on the This solves problems such as decreased durability.

Structure of the Invention (Means for Solving the Problems) As a means for solving the above problems, in this invention, the spread fibers supplied through the fiber supply channel are arranged adjacently and in the same direction. In an adsorption-twisting spinning device in which yarn is spun by being subjected to a twisting action while being adsorbed to at least one of the twisting rollers in a wedge-shaped space formed by the surfaces of a pair of rotating twisting rollers, at least one An endless drive belt is disposed that goes around between two drive pulleys and a tension pulley, and the twisting roller is disposed outside the drive belt that runs between the drive pulley and the tension pulley. A rotating shaft having a smaller diameter than the twisting roller formed protruding from the end of the roller is brought into contact with the drive belt at a position opposite to the fiber supply side to the twisting roller, and is inserted and fixed into the twisting roller. A structure was adopted in which the suction pipe was extended to the side opposite to the rotating shaft of the twisting roller and connected to the suction source.

(Function) In the present invention, the rotating shaft of each twisting roller is brought into pressure contact with one endless drive belt, so that all the twisting rollers of a plurality of weights are driven to rotate in the same direction. The rotating shaft of each twisting roller contacts the drive belt on the outside, and since the fiber adsorption and accumulation position on the twisting roller, that is, the fiber supply side is located on the opposite side of the drive belt, when the yarn is drawn out, the yarn and the drive belt There is no interference between the two and it is easy to perform operations such as thread splicing. In addition, since the suction pipe is disposed on the opposite side to the rotating shaft of the twisting roller, the diameter of the rotating shaft of the twisting roller can be reduced, and the driving belt can be applied without increasing the running speed very high. The twisting roller can rotate at high speed, reducing energy loss and increasing the durability of the drive belt.

(Example) Next, an example in which this invention is embodied in a device in which all the twisting rollers are driven by one drive belt will be described with reference to FIGS. 1 to 4. Support stands 3 are fixed at regular intervals to a frame 2 extending along the longitudinal direction of the machine stand 1, and each support stand 3 has two support stands 3 positioned on a straight line parallel to the longitudinal direction of the machine stand. Fitting holes 4 and 5 are formed adjacent to each other. A cylindrical support tube 6 is fitted at its base end into one of the fitting holes 4, and a suction pipe 7, which also serves as a support tube, is fitted and fixed into the other fitting hole 5.
The suction pipe 7 has its base end connected to an air suction source (not shown), and has a narrow suction port 7a extending in the longitudinal direction adjacent to the support tube 6. Bearings 8 and 9 are fitted and fixed inside the support tube 6 and the suction pipe 7, and both bearings 8 and 9
Rotating shafts 10 and 11 are fitted and fixed to the respective parts. A non-perforated roller 12 as a twisting roller is fixed to the protruding end of one rotating shaft 10 at a base end attachment part 13 so as to be rotatable along the outer periphery of the support tube 6. A covering member 12a made of an elastic material such as polyurethane is adhered to the outer peripheral surface of the non-porous roller 12. Further, at the protruding end of the other rotary shaft 11, a perforated roller 14 as a twisting roller is attached to a base end attachment portion 15 so as to be rotatable along the outer periphery of the suction pipe 7.
It is fixed in.

A drive pulley 16 rotatably driven by a driving means such as a motor is disposed on one side of the machine base 1, and a tension pulley 17 is rotatably disposed on the other side. An endless drive belt 18 is disposed between the drive pulley 16 and the tension pulley 17, and the non-perforated roller 12 and the perforated roller 14 are connected to each other at the outer periphery of the drive belt 18.
It is wound around so that it is in contact with the mounting parts 13 and 15 of. Further, a drive belt 1 is installed between each of the support stands 3.
A guide pulley 19 is provided to press and urge the roller 8 toward the non-perforated roller 12 and the perforated roller 14.

A fiber supply device 2 has a fiber supply channel 20 on one side of the non-perforated roller 12 and the perforated roller 14, the tip of which is formed in a shape corresponding to the wedge-shaped space R formed by the outer surfaces of both rollers 12 and 14.
1 is disposed so as to be rotatable in a direction orthogonal to the longitudinal direction of the machine base 1 about a support shaft 22 that extends parallel to the machine base 1 with its tip facing the wedge-shaped space R. A fiber opening roller 23 is disposed on the upstream side of the fiber supply channel 20 so as to be able to rotate at high speed, and is supplied by the action of a grooved roller 24 and a presser 26 that is biased against the grooved roller 24 by a spring 25. The sliver 27 is opened and fed into the fiber supply channel 20.
Further, above the fiber supply device 21, there is a pull-out roller 2.
8 and a winding device 29 are provided.

Next, the operation of the apparatus configured as described above will be explained. The sliver 27 is fed to the opening roller 23 at a constant speed by the cooperative action of the presser 26 and the grooved roller 24, and the sliver 27 is opened by the opening roller 23.
into the fiber feed channel 20. The spread fibers fed into the fiber supply channel 20 fly to the exit portion 20a side of the fiber supply channel 20 on the suction airflow of the suction pipe 7, and are connected to the porous hole corresponding to the suction port 7a to the suction pipe 7. It is adsorbed and deposited on the outer surface of the roller 14. The fiber bundle S attracted to a predetermined position of the perforated roller 14 by the suction action of the suction pipe 7 is transferred to the perforated roller 14 and the non-perforated roller 12.
Due to the friction between the two rollers, the two rollers are rolled about a line parallel to the axial direction of the two rollers as the axis of rotation, and thereby twisted. The fiber bundle S twisted by both rollers 12 and 14 is pulled out as yarn Y by a pull-out roller 28, and wound up as a package P by a winding device 29.

The non-porous roller 12 and the perforated roller 14 constituting the twisting rollers of each weight are in contact with the drive belt 18 at their attachment parts 13 and 15, which are contact parts with the drive belt 18 on the outside of the drive belt 18. , a wedge-shaped space R for adsorbing and depositing the spread fibers supplied from the fiber supply device 21 on the surface of the perforated roller 14 and twisting the adsorbed and deposited fiber bundle S in cooperation with the non-porous roller 12; is on the opposite side to the drive belt 18, so there is no interference between the drive belt 18 and the thread Y when the thread Y is drawn out. Further, during yarn splicing work or maintenance work, the work can be easily performed by rotating the fiber supply device 21 upward. Furthermore, since the suction pipe 7 is disposed on the opposite side of the contact portion of the rollers 12 and 14 with the drive belt 18,
The diameter of the rotation shaft or pulley of each roller that comes into contact with the drive belt 18 can be made small, and both rollers 12 and 14 can be rotated at high speed without increasing the running speed of the drive belt 18 so much. The durability of the product also increases.

Note that the present invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG. Alternatively, contrary to the above embodiment, the non-porous roller 12, the perforated roller 14, and the fiber supply device 21 are provided below the support base 3, and the suction pipe 7 is provided above to draw out the yarn Y downward. Alternatively, instead of disposing the rollers 12 and 14 vertically, they may be disposed horizontally or at an arbitrary angle. Also, rotating shaft 1
0 and 11 are the base end attachment parts 1 of both rollers 12 and 14.
3 and 15 so as to come into contact with the drive belt 18 at the rotating shafts 10 and 11.

Effects of the Invention As detailed above, according to the present invention, multiple spindle twisting rollers can be rotated in the same direction with a simple structure, and interference between the yarn and the drive belt during spinning can be avoided. This makes it easier to handle during splicing operations or maintenance. moreover,
It is possible to reduce the diameter of the rotating shaft, which is the contact part of the twisting roller with the drive belt, which allows the twisting roller to rotate at high speed without increasing the running speed of the drive belt, reducing energy loss and reducing the belt speed. This has the excellent effect of increasing the durability of the product.

[Brief explanation of the drawing]

1 to 4 show an embodiment embodying the present invention, in which FIG. 1 is a schematic plan view showing the entire device, FIG. 2 is a plan view of the suction twist spinning device,
Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is a cross-sectional view of Figure 2.
5 is a schematic plan view showing a modified example, and FIG. 6 is a sectional view showing a conventional device. Suction pipe...7, Non-porous roller...12, Perforated roller...14, Drive pulley...16, Tension pulley...17, Drive belt...18, Fiber supply device...21, Spreading roller... 23. Wedge-shaped space...R, Thread...Y.

Claims (1)

[Scope of Claims] 1. Spread fibers supplied through a fiber supply channel are processed in at least one of said twisting rollers in a wedge-shaped space formed by the surfaces of a pair of twisting rollers arranged adjacently and rotating in the same direction. In an adsorption-twisting spinning device that spins a yarn by applying a twisting action while being adsorbed to a twisting roller, an endless drive belt is disposed to circulate between at least one drive pulley and a tension pulley, The twisting roller is disposed on the outside of the drive belt running between the drive pulley and the tension pulley, and a rotating shaft having a smaller diameter than the twisting roller that is formed protruding from the end of the twisting roller is connected to the twisting roller. A suction pipe is brought into contact with the drive belt at a position opposite to the fiber supply side to the twisting roller, and is inserted and fixed into the twisting roller. A twisting roller drive device in an adsorption twisting spinning device characterized by: 2. The twisting roller drive device in the suction twisting spinning device according to claim 1, wherein the contact portion is a pulley fitted to the rotating shaft of the twisting roller.