JPS609132B2 - Double twisting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double twisting machine, and in particular, by improving the lower structure for controlling bulging, the power consumption for operation is greatly reduced, and the high speed of the spindle, etc. This is designed to solve various problems caused by rotation.

In conventionally known double yarn twisting machines, a yarn supplying body such as a cheese or burn is held on a stationary disk that is provided concentrically with the spindle and remains stationary at all times, and
A thread collection disc is formed integrally with the spindle below the stationary disc, and an inverted truncated conical rotating thread guiding disc is integrally formed above the thread collection disc. Note that the spindle is normally driven via a belt. That is, the yarn pulled out in the radial direction from the yarn guiding hole of the spindle exits to the outside of the circumferential surface of the yarn collecting disk and is wound around it, and then winds around the circumferential surface of the rotating yarn guiding disk in a spiral shape at an appropriate angle. The balloon then separates to form a balloon and is taken up by the upper guide.

However, in the above-mentioned structure, the rotating disk for guiding the yarn is very large and its inertial mass is also large, so its operation requires a large amount of power consumption.

In addition, because its surface area was large, when it rotated at high speed together with the spindle, there was a considerable loss of power due to air resistance on the surface. In addition, since the spindle, thread collection disc, and thread guiding rotating disc rotate together at high speed, their inertial mass as a rotating body is large, and the combined vibration becomes intense. It was necessary to make each part of the village strong. In addition, there was considerable wear and tear on each component due to wear. Furthermore, since the spindle is driven via a belt, the noise during operation is quite high, which poses a problem in terms of environmental hygiene in the workplace. This invention aims at a fundamental change in concept and completely eliminates the spindle, yarn collection disk, and rotating disk for yarn guidance that have been indispensable in conventional double-twisting machines.

Instead of supporting the stationary disk for supporting the yarn supplying body by the spindle, the magnetic repulsion force acting between the paired permanent magnets is used to hold the stationary disk (and the yarn supplying body) stationary in the air. It is designed to keep it floating. Then, the stationary disk was separated and a rotating shallow dish-shaped ring was installed so that it could rotate, and a rotor made of permanent magnets was fixed around this rotating ring. Both magnets form a kind of motor, and by exciting the motor, the rotary ring is rotated.The invention will be explained in more detail below with reference to embodiments shown in the accompanying drawings.

As described above, the present invention attempts to twist the yarn without using the conventionally used spindle.

That is, what is shown in the figure is an example applied to a double twisting machine for cheese, and the stationary body box has a cylindrical part 3 on its central upper surface, and this cylindrical part 3 is connected through a sleeve 5. The bobbin B of cheese C is supported by the clover layer. Furthermore, a thread guide 9 is rotatably provided at the inner lower end of the cylindrical portion 3 via a bearing 7. The disk portion 11' of the stationary body 1 has an inverted truncated cone shape rising from the center toward the outer periphery, and a recess 13 is formed on the bottom surface near the outer periphery, and a permanent magnet 15 is fixed in this recess 13. It is being played.

A permanent magnet 17 is fixed to the machine frame F so as to be spaced apart from and opposite to the permanent magnet 15 with an outward rising slope of the machine. These permanent magnets 15 and 17 are arranged so that a magnetic repulsive force acts between them, and this magnetic repulsive force holds the stationary body 1 (and the cheese C) in a suspended state above the frame F. ing. Also, permanent magnets 15, 17
Both are inclined outward in the shape of an inverted truncated cone, so
As described above, although the stationary body 1 is suspended in the air, it does not move at all in the direction perpendicular to its center, that is, in the horizontal direction. A Hikyu magnet 19 is fixed at a suitable position on the circumference of the stationary disk portion 11, and a permanent magnet 21 is fixed on the frame F in a spaced and opposite manner to this magnet.

These permanent magnets 19 and 21 are arranged so that a magnetic attraction force acts between them, and this magnetic attraction force keeps the stationary body 1 (and the cheese C) in a rotation-prevented state at all times. In order to prevent the stationary body 1 from shifting horizontally about its axis, the set of permanent magnets 19 and 21 that have been entrusted to the stationary body 1 must be
It is desirable to provide them at symmetrical positions with respect to the center of the ball. 0
The lower end of the cheese cover 23 is fixed to the periphery of the stationary disc portion 11, and a pin 25 is erected on the frame F substantially below the cheese cover 23, and a bearing 27 is mounted on the pin 25. has been done.

This bearing 27 extends 3 along the circumferential direction of the stationary body 1.
There are more than one of them, and the shallow dish-shaped rotary ring 29 is rotatably supported with respect to the stationary body 1. A rotor 31 made of a permanent magnet is fixed along the outer periphery of the rotating ring 29, and an electromagnet 33 is provided on the frame F at a distance from and facing the rotor 31. This electromagnet 33 is connected to an excitation circuit (not shown) and is electrically combined with the rotor 31 to constitute a kind of motor.

A guide eye 35 for pulling out the thread is provided on the upper surface of the rotating ring 29 near the periphery. In the above structure,
The thread Y guided from the tension adjustment mechanism (not shown) at the top of the bobbin through the center hole of the bobbin first reaches the thread guide 9.
It passes through the gap between the floating support permanent magnets 15 and 17 while rotating, and the cover 2 passes through the guide eye 35 of the rotating ring 29.
3. While going out and forming a balloon, it is taken up by a guide (not shown) provided above the cheese C.

During this period, the rotating ring 29 rotates at high speed due to the torque generated by the excitation of the electromagnet 33. As is clear from the above description, this invention eliminates the spindle, yarn collection disk, and rotating disk for yarn guidance with large inertial mass, which were considered essential elements in conventional dual-combustion yarn machines, and has an extremely high inertial mass. Since we are only rotating the small rotating ring,
Power consumption during operation can be significantly reduced.
Furthermore, since a very shallow dish-shaped rotating ring is used in place of the yarn guiding rotating disk with a large surface area, there is no loss of power consumption due to air resistance during high-speed rotation.

Furthermore, since the rotating part is only a lightweight rotating ring, there is less wear and tear on each part due to rotation, and since the rotating inertial mass itself is small, there is less vibration, so there is no problem with noise, and the structure of each part is as strong as the left. There is no need to do so.

Since the total number of parts is greatly reduced compared to conventional products, manufacturing costs are reduced accordingly, and parts management and maintenance management are also simplified. Furthermore, since the stationary body (and the cheese) is supported using the magnetic repulsion force of the permanent magnet, no special power is required for that purpose. In addition, in the above example, a bearing 7 is attached to the thread guide 9 to make it rotatable in order to avoid damage to the thread due to friction, but when used with abrasion-resistant thread such as nylon, the thread guide 9 may be made stationary. It may be fixed to the body cylindrical portion 3.

Furthermore, when installing the bearing 27 on the frame F using the pin 25, if the connecting axis of the bearing 27 and the mounting axis on the frame F are slightly eccentric, the gap between the bearing 27 and the rotating ring 29 will be reduced. can be adjusted freely and is convenient for assembly.

In the double twisting machine of the present invention, as a result of omitting the yarn collecting disk, there will be some fluctuations in the tension and shape of the balloon, but in most practical cases the fluctuations are negligible.

Even if the fluctuation cannot be ignored, it is possible to sufficiently regulate the fluctuation by using an appropriate compensator. Although the above explanation has been made regarding a double twisting machine for cheese, it goes without saying that the present invention can also be applied to a double twisting machine for burning by making some design changes.

[Brief explanation of drawings]

The attached drawing is a side sectional view showing an example of the yarn twisting machine of the present invention. 1... Stationary body, 9... Thread guide, B... Bobbin,
C... Cheese, F... Frame, Y... Thread, 11... Disc part, 15, 17, 19, 21... Permanent magnet, 23...
・Cover, 27...bearing, 29...rotating ring,
31... Rotor, 33... Electromagnet.

Claims (1)

[Claims] 1. A stationary body for placing and supporting a yarn supplying body has a central cylindrical portion and a disk portion integrated with the central cylindrical portion, and a yarn guide is provided at the lower end of the cylindrical portion of the stationary body. In addition, a first permanent magnet is provided in the circumferential direction of the disk portion, and a magnetic repulsion is provided between the first permanent magnet and the machine frame on the machine frame, facing away from the first permanent magnet. A second permanent magnet is arranged so as to generate a force, and the above-mentioned stationary body is held in a rotation-prevented state by an attached rotation-preventing element, and a small amount is placed on the machine frame around the bottom of the stationary body. A shallow dish-shaped rotary ring is rotatably held concentrically with the stationary body and surrounded by a distance from the stationary body by bearings provided at three locations. A guide eye is formed, and a rotor made of a permanent magnet is fixed on the outer periphery of the rotating ring. Electromagnets fixed on a frame surrounding this rotor are connected to an excitation circuit, and the above-mentioned A double twisting machine that is electrically combined with a rotor to form a kind of motor. 2. The double twisting machine according to claim 1, wherein the first and second permanent magnets both have an inclination rising from the center side to the peripheral edge side of the stationary body.