JPH1161577A - Multiple twister - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the windage loss in the rotation of a rotary pot in a twister furnished with concentrically rotating inner and outer rotary pots. SOLUTION: An inner and an outer rotary pots 10, 20 are arranged in a manner to rotate in concentric state and the rotary driving force of the outer rotary pot 10 is transmitted to the inner rotary pot 20 with magnets (Q, q). A yarn guiding mechanism 50 stationarily held by the attractive force of magnets (N, n) is placed between the inner and outer rotary pots 10, 20 and a package cover 30 for holding a yarn feeding package P placed in the inner rotary pot 20 is held in stationary state by the attractive force of magnets (M, m). When the outer rotary pot 10 is rotated, the inner rotary pot 20 is rotated in the same direction at the same speed to apply quadruple twist to the yarn X. Since the inner and outer rotary pots 10, 20 are rotated in the same direction, the windage loss is decreased to improve the energy efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a multiple twisting machine provided with concentric rotating inner and outer rotating pots, and more particularly, to enable high-speed rotation of the rotating pot.

[0002]

2. Description of the Related Art The present inventors have developed a quadruple twisting machine using two rotating pots arranged concentrically inside and outside, and are now studying hard for practical use.

In this quadruple twisting machine, the inner and outer double rotating pots are configured to rotate concentrically in opposite directions to each other, and hold the yarn supply package housed in the inner rotating pot in a stationary state. It is designed so that the yarn can be twisted four times in one step.

[0004]

In the above-described quadruple twisting machine, since the inner and outer rotating pots are rotated in opposite directions, there is a problem that windage occurs between the two and the energy loss is large. . This is because the air near the surface of the rotating pot tends to flow around the rotating pot due to its viscosity, but the flow direction between the air near the inner rotating pot and the air near the outer rotating pot is different. Because it is opposite, friction occurs near the boundary between the two. As a result, the rotation resistance of the inner and outer rotating pots increases, and it is difficult to achieve high-speed rotation.

[0005]

SUMMARY OF THE INVENTION The present invention provides a twisting machine having inner and outer rotating pots that can rotate concentrically, and provides means for increasing the rotation speed of the pot. The rotation direction of the inner and outer rotating pots is the same.

In this case, the rotary drive mechanism of the rotary pot is
One of the inner and outer rotary pots is driven to rotate, and a mechanism for transmitting a rotary drive force from the one rotary pot to the other rotary pot is provided, and the rotary drive force transmitting mechanism is configured using a magnet. Can be.

[0007] Further, a yarn guiding mechanism that is held stationary can be provided between the inner rotating pot and the outer rotating pot.

[0008]

FIG. 1 shows an example of a multiple twisting machine (hereinafter simply referred to as "twisting machine") T according to the present invention. This twisting machine T is capable of quadruple twisting, and its structure and operation will be briefly described as follows.

The twisting machine T has a configuration in which an outer rotating pot 10, an inner rotating pot 20, and a package cover 30 are arranged concentrically in order from the outside. Is stored. A yarn introduction mechanism 50 is provided between the outer rotating pot 10 and the inner rotating pot 20. Outer rotating pot 10
Further, a hood H is provided on the outside.

Each of the inner and outer rotating pots 10, 20 and the package cover 30 are each a tubular shape with a lidless bottom. The materials of the rotating pots 10 and 20 are required to have strength enough to withstand high-speed rotation and abrasion resistance to withstand friction with the yarn, and be lightweight and non-magnetic. For this, a non-magnetic metal such as aluminum or stainless steel may be used, but a non-conductive material such as synthetic resin or ceramic is preferably used. This is to prevent generation of eddy current in the pot and prevent generation of heat or reverse torque even when the rotor is rotated at high speed in the magnetic field formed between the magnets M and m and N and n. is there. Considering workability, cost, etc., synthetic resin is considered more preferable. In particular, thermosetting phenolic resin, urea resin, polyester resin, etc. have good machinability and reduce the coefficient of friction with the thread. Therefore, there is an advantage that it is easy to apply a polishing treatment with a buff or the like to the surface to smooth the surface. Further, in order to further increase the strength, it is not hindered that the rotating pot is made of FRP by using a glass cloth or other cloth as a core material, or mixing glass fibers into a resin material.

At the center of the bottom of the outer rotary pot 10, there is provided a disk portion 11 in which a yarn guide path 12 is formed. Below the disk portion 11, a pulley portion 13 and a hollow spindle portion 14 are provided. The spindle portion 14 is rotatably supported via bearings by a bearing member 60 fixed to a frame F or the like with a nut 61. By applying a rotational driving force to the pulley portion 13 through a belt B, the outer rotary pot is provided. 10 rotates. Spindle unit 1
The compressed air is supplied to the ventilation path 15 in the lower end opening 62 of the bearing 60 from the inside of the 4, and the ventilation path 15 is formed so as to communicate with the yarn introduction path 12.

The inner rotating pot 20 is provided with a shaft portion 21 having a yarn guiding path 22 formed upright at the bottom center upper surface side, and a disk portion 23 provided at the bottom center lower surface side. The yarn guide path 22 extends from the shaft portion 21 to the disk portion 23.
Is formed so as to extend radially outwardly of the first. A magnet Q attached to the disk portion 11 of the outer rotary pot 10 is sandwiched between the disk portion 23 and a yarn introduction mechanism portion 50 described later.
Is provided.

A bobbin holder 31 for holding the bobbin 33 of the yarn supply package P is provided upright at the center of the package cover 30 provided in the inner rotary pot 20, and extends along the central axis of the bobbin holder 31. , A yarn guide path 32 is formed in the upper half, and a storage recess 34 is formed in the lower half. The package cover 30 is held by the shaft portion 21 of the inner rotating pot 20 inserted into the storage recess 34 so as to be rotatable relative to the inner rotating pot 20 via a bearing. A magnet m attracting the magnet M attached to the hood H is attached to the bottom outer peripheral side of the package cover 30, and the package cover 30 is normally held stationary by the attraction of these magnets M and m. A tensor cap 40 and a tension ring 41 are attached to the upper end of the bobbin holder 31 to apply an appropriate tension to the yarn X unwound from the yarn supply package P.
In the tensor cap 40, the bobbin holder 31 is provided.
A yarn guide path 42 communicating with the internal yarn guide path 32 is formed.

The yarn introduction mechanism 50 passes between the outer rotating pot 10 and the inner rotating pot 20 from the position of the guide A provided above the yarn supplying package P, and passes through the gap between the respective disk portions 11 and 23. Hollow pipe part 51 to the position
And a hollow shaft portion 52 interposed between the disk portions 11 and 23, and an arm portion 53 extending laterally from the shaft portion 52. The guide A is a pipe 51
And may be provided integrally. The shaft portion 52 is provided with the disk portions 11 of the inner and outer rotary pots 10 and 20 positioned vertically.
In the recesses 16 and 24 formed in the respective 23, the bearings are held by the bearings so as to be rotatable relative to the respective rotating pots 10 and 20. The hollow portion in the pipe portion 51 and the shaft portion 52 communicates with the yarn guide path 12 formed in the disk portion 11 of the outer rotating pot 10. At the tip of the arm 53, a magnet n attracting the magnet N attached to the hood H is attached, and the attraction of these magnets N, n causes the yarn introduction mechanism 5 to move.
0 is normally kept stationary. Since the magnetic field formed by the magnets Q and q moves as the inner and outer rotating pots 10 and 20 rotate at a high speed, the lines of magnetic force cross the pipe 51 and the arm 53. Therefore, the pipe portion 51 and the arm portion 5
3 is desirably formed of a non-conductive material.

In the twisting machine T of the present embodiment described above, the yarn introduction mechanism 50 is connected to the shaft 5 by the outer rotating pot 10.
2 and the shaft 52 of the yarn introduction mechanism 50
Holds the inner rotating pot 20, and the shaft portion 21 of the inner rotating pot 20 holds the package cover 30.
And the bobbin holder 31 of the package cover 30 holds the yarn supply package P. The yarn supply package P, the package cover 30, and the yarn introduction mechanism 50 are held stationary by the attraction of the magnets M, m and N, n, whereas the outer rotary pot 10 and the inner rotary pot 20 rotate. It is configured to rotate freely in the same direction at the same speed by the attraction of the magnets Q and q.

The yarn hooking operation of the twisting machine T according to the present embodiment is as follows. Thread X unwound from yarn supply package P
Is applied between the tensioner cap 40 and the tension ring 41 to give an appropriate tension, and then passes through the yarn introduction path 42 of the tensor cap 40 and the yarn introduction path 32 of the bobbin holder 31, and passes through the shaft in the inner rotary pot 20. After passing through the yarn guide path 22 of the section 21, the inner rotating pot 2
It rises along the inner surface of 0 and guides it to guide A. The yarn X, which has been inserted from the guide A through the pipe portion 51 and the shaft portion 52 of the yarn introduction mechanism 50, passes through the yarn introduction path 12 of the outer rotating pot 10 and travels along the inner surface of the outer rotating pot 10. After starting up, it is guided to the uppermost guide D and fed to a winder or the like.

The operation of inserting the yarn X from the pipe part 51 and the shaft part 52 of the yarn introduction mechanism part 50 to the yarn introduction path 12 of the disk part 11 in the outer rotary pot 10 is performed from the lower end of the bearing part 60 to the spindle part 14. This can be easily performed by blowing compressed air into the ventilation path 15.
The air passage 15 is connected to a portion of the yarn introduction path 12 of the disk portion 11 where the curved portion transitions from the curved portion to the radial portion so that the ejection direction is the outer peripheral direction of the disk portion 11. Therefore, a pressure difference is generated between the upstream side and the downstream side of the yarn introduction path 12 by blowing the compressed air from the ventilation path 15 into the yarn introduction path 12. As a result, the pipe section 5
1 and the inside of the shaft portion 52 become negative pressure, and the yarn introduction mechanism 50
Of air for threading can be generated in a path extending from the upper end of the disk section 11 to the end of the yarn introduction path 12 of the disk portion 11.

The supply of compressed air to the ventilation path 15 of the spindle unit 14 is normally stopped after the threading operation is completed and before the start of the twisting process. However, depending on the type of the yarn X and other conditions, the twisted yarn may be supplied. Supply air at an appropriate pressure during the process,
Not only does the friction generated when the yarn X pass through is reduced, but it does not prevent the air from being cooled to suppress the heat generation.

Since the twisting machine T in this embodiment is threaded as described above, when the outer rotary pot 10 is driven to rotate through the belt B, the inner rotary pot 20 is driven at the same speed by the attractive force between the magnets Q and q. Although the yarns are rotated in the same direction, the yarn supply package P and the yarn supply mechanism unit 50 are kept stationary, so that the yarn can be given a quadruple twist per rotation of the outer and inner rotary pots 10 and 20. .

Since the inner and outer rotary pots 10 and 20 rotate in the same direction at the same speed, the air between them flows in a certain direction, thereby reducing windage and noise.

The embodiment of the present invention, other than the above-mentioned ones, does not prevent any appropriate change depending on the situation.

[0022]

In the twisting machine according to the present invention, the inner and outer rotating pots are rotated in the same direction, so that windage loss is reduced and high-speed rotation is possible. In addition, since the load on the bearing or the like holding the rotating pot is reduced due to the reduction of the windage, the service life is prolonged. Furthermore, energy efficiency is improved and noise is reduced.

The rotary pot has a rotary drive mechanism for rotating one of the inner and outer rotary pots, and a mechanism for transmitting a rotary drive force from the one rotary pot to the other rotary pot is configured using a magnet. Thus, the transmission mechanism of the driving force can be simplified. In addition, since only one of the inner and outer rotating pots needs to be rotated, only one belt for transmitting the driving force is required. Further, a mechanism such as a bearing for rotatably holding the rotating pot is simplified.

In the case where a yarn introduction mechanism held in a stationary state is provided between the inner rotating pot and the outer rotating pot, a conventional twisting machine, that is, a quadruple twisting machine in which the rotating directions of the inner and outer pots are different. It is possible to omit the fryer used for guiding the yarn, which is indispensable to the above. Further, since the yarn introduction mechanism is not rotated, it is easy to keep the balance of the twisting machine stable.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an example of a multiple twisting machine according to the present invention.

[Explanation of symbols]

 T: Twisting machine B: Belt M, m: Magnet N, n: Magnet Q, q: Magnet P: Yarn supply package X: Yarn 10: Outer rotating pot 12: Yarn path 20: Inner rotating pot 22: Yarn path Reference Signs List 30 package cover 32 yarn guide path 42 yarn guide path 50 yarn guide mechanism

Claims (3)

[Claims] 1. A twisting machine comprising inner and outer rotating pots rotating concentrically, wherein the rotating direction of the inner and outer rotating pots is the same. 2. A mechanism for rotating and driving one of the inner and outer rotating pots and a mechanism for transmitting a rotating drive force from the one rotating pot to the other rotating pot, wherein the rotating drive force transmitting mechanism comprises: The multiple twisting machine according to claim 1, wherein the multiple twisting machine is configured using a magnet. 3. The multi-twisting machine according to claim 1, further comprising a yarn guiding mechanism that is held stationary between the inner rotating pot and the outer rotating pot.