JPS588790Y2 - Spreading roller in open-end spinning machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fiber-spreading roller for an open-end spinning machine, and is designed to ensure that the fiber-spreading and transporting action of the spirally wound metallic wire can be fully exerted even at the ends of the roller. be.

As a type of open-end spinning machine, the fibers fed from the feeding mechanism are spread and transferred by the opening roller,
There are some devices that feed the opening roller into a heating mechanism, but the opening roller is usually one in which a metallic wire is spirally wound, and the metallic wire is caulked to the roller body using a caulking plate.

By the way, as shown in the figure, when caulking the metallic wire 3 consisting of the base 1 and the teeth 2 to the roller body, the caulking plate 4 presses the base shoulder 5 while caulking, and the wire is pressed against the caulking plate 4. For operational reasons, winding in which the roller body is rotated in a direction in which the teeth do not face each other has conventionally been carried out as shown in Figs. 5 and 6.
The base shoulder 5 is closer than the tooth 2 to the flange 6 which is on the opposite side to the spiral direction in the roller rotation direction, that is, the direction of the tooth action surface (one side constituting the working angle) 2' of the metallic wire 3. It is designed so that it can be wrapped so that it is located at

That is, a sufficient distance L1 is formed between the flange 6 and the tooth portion 2 so that the caulking plate 4 can fit therein.

However, due to the existence of this interval L1, the fiber group S that is subjected to the opening action as the opening roller I rotates is affected by the teeth of the metallic wire, as shown in FIGS. 3 and 4. The fiber group S
A part of it falls within the large distance L1.

For example, in the case of FIGS. 3 and 5, since the metallic wire 3 is wound with an inclination angle θ such that the helical direction in the direction of rotation of the working surface 2' is upward to the right, the fiber group S is directed downward. It is pushed down and subjected to fiber opening and transfer action at a location with an interval L1.

In the case of FIGS. 4 and 6, since the metallic wire 3 is wound around the spiral direction of the tooth working surface 2' at an inclination angle θ of downward to the right, the fiber group S is pushed upward. and is acted upon at a location with an interval L1.

Of course, with regard to the opening and transporting action, it is better if the teeth 2 act on the fibers more frequently, but as in the conventional method, there is a large gap L1 at the end of the roller where the fiber group S is biased. This means that the number of times the teeth 2 act on the fibers decreases accordingly, and the opening and transporting effects become uneven between the roller ends and the roller center, which is disadvantageous.

The present invention is designed to ensure that the spreading and transporting functions can be sufficiently exerted even at the end of the roller where the fibers are collected in the opening roller on which the metallic wire is crimped and wound. The metallic wire is wound around the flange on the side opposite to the spiral direction in the direction of orientation, so that the base shoulder is located further away than the tooth.

Now that the technology for caulking metallic wire has become more sophisticated, it is now possible to rotate the roller body in any direction regardless of the orientation of the wire teeth and use a caulking plate to perform caulking. The inventors of the present invention focused on this point, and by eliminating the space between the caulking plate and the metallic wire at the end of the roller where the fiber group is offset, the flange and the wire teeth are The direction in which the metallic wires are arranged is specified from the viewpoint of minimizing the distance between them.

To explain the embodiment shown in the drawings, in the case of FIG. 1, the metallic wire 3 is wound with an upward slope θ to the right in the direction of rotation, that is, in the direction of orientation of the tooth working surface 2'. Therefore, the fiber group S is pushed downward, but if the metallic wire 3 is oriented so that the base shoulder 5 is located further away from the toothed part 2 with respect to the lower flange 6, the flange 6 can be moved to the toothed part. Only a small distance L2 is formed between the two.

In other words, the caulking plate 4 presses the base shoulder 5 while tightening the wire 3.
In the case of FIG. 1, the caulking plate 4 moves relative to the roller body in the direction of arrow a from the top to the bottom, and even at the winding end position, the caulking plate 4 remains between the flange and the wire 3. There is no need to enter, and therefore the interval L2 can be made as small as possible.

When the opening roller 7 thus formed acts on the fiber group S, the fiber group S pushed down receives sufficient opening and transporting action from the teeth 2 that are close to the flange 6. , the same effect as in the center of the roller body is performed.

In the case of FIG. 2, the metallic wire 3 is wound so that the spiral direction in the direction of tooth action white 2' is downward to the right with an inclination θ, and therefore the fiber group S is pushed upward, but the upper flange 6 On the other hand, the base shoulder portion 5 is the tooth portion 2
If the direction of the metallic wire 3 is determined so that it is located further away from the flange 6 and the tooth portion 2, there is no need to provide an entry interval for the caulking plate 4 during wire caulking, and the small interval L2 It will be better if you just form .

In short, the wire teeth 2 can be brought closer to the flange 6, so when the opening roller 7 acts on the fiber group S, the fiber group gathered upward is moved by the wire 3 at the upper end of the roller. The fibers are fully opened and transported.

As described above, according to the opening roller of the present invention, even though the fiber group is biased due to the inclination of the spirally wound metallic wire, by simply taking care to specify the arrangement direction of the metallic wire, It is possible to perform the same opening and transferring action on the uneven fiber group as in the central part of the roller body, and the fibers sent to the heating section are uniform.
It can contribute to improving the quality of yarn spun on open-end spinning machines.

[Brief explanation of the drawing]

1 and 2 are longitudinal cross-sectional views of main parts showing two embodiments of the opening roller according to the present invention, and FIGS. 3 and 4 show the two winding directions of the metallic wire and the biasing direction of the fiber group. FIGS. 5 and 6 are front views for explaining the relationship between the two, and FIGS. 5 and 6 are longitudinal cross-sectional views of essential parts showing the arrangement of metallic wires in two winding directions in a conventional opening roller. 1... Base, 2... Teeth, 5...
・・Base shoulder part 3・・・・Metallic wire, 6・
...Flange, I...Opening roller, S...
...Fiber group, θ...Metallic wire inclined winding angle.

Claims (1)

[Scope of utility model registration request] Flanges 6.6 are formed at both upper and lower ends, and a metal wire 3 consisting of a base 1 and teeth 2 is helically caulked onto a plate 4.
In the opening roller 7, the base shoulder 5 is pressed against the main body by the flange 6 on the side opposite to the helical direction in the orientation direction of the teeth working surface of the wire 3. A fiber opening roller for an open-end spinning machine, characterized in that a metallic wire 3 is wound so that a portion 5 is located farther than a tooth portion 2.