JPS5931712Y2 - Under clear roller of spinning machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an under clearer roller that is attached to a back bottom roller in a roller part of a spinning machine, mainly a spinning machine, and removes fluff, etc. that adheres to the roller.

By the way, the conventional under-clearer roller is made of a wooden rod with rasher cloth attached to the entire circumference.

In order to use these, both shaft ends of the roller are usually supported by spring plates attached to a roller stand, etc., so that they are elastically pressed against the bottom roller, or they are attracted to the bottom roller by a built-in magnet and rotated as a result. was.

However, since conventional under-clearer rollers are rod-shaped in all cases, the clarifier roller, which rotates in contact with the back bottom roller, has the same circumferential speed as the bottom roller, and therefore, the adhered fluff can be removed in a peeling-like manner. However, this is hardly done, and the fluff is mainly transferred from the bottom roller by the fuzz of the surface rasher cloth, which is passive, and the fluff removal is not complete and causes some rolling.

Therefore, the present invention improves the structure of the under-clearer roller so that the adhering fluff can be actively removed quickly and reliably, thereby eliminating the above-mentioned drawbacks.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of the present invention shown in the drawings will be described below.

As shown in FIGS. 1 and 2, a plurality of arcuate grooves 2 (four grooves in the drawing) having a diameter slightly larger than that of the back bottom roller are provided in the roller body 1 in the axial direction of the roller. The surface of the roller body 1 is formed by the arcuate convex portions 3 formed between the grooves 2, and the rasher cloth 4 is fitted and adhered to the entire circumferential surface of the roller body.

Furthermore, as shown in the figure, protrusions 5 are provided in the same phase near the edges of each arcuate convex portion 3 at the center in the length direction.

This under clearer roller a is attached to the lower part of the back bottom roller 6 as shown in FIG.

What is shown in FIG. 4 is a roller part of a spinning machine, and is an example of a three-wire system.

6, 7.8 are bottom rollers, 6', 7', and 8' are top rollers, and the under clearer roller a has its core shaft 9 elastically supported by a spring 11 attached to a roller stand 10 as before. It is supported and provided in pressure contact with the lower roller surfaces of the back bottom roller 6 and the middle bottom apron roller 7 at an intermediate position thereof.

Note that the under clearer roller a has a length of one staff, similar to the conventional roller.

On the other hand, as shown in FIG.
A claw 13 is provided in a protruding manner.

This pawl 13 is made of a spring plate as shown in the drawings, and its root portion is firmly fitted onto the neck 12 so that the pawl 13 protrudes, or is provided on the neck by other conventional means for attaching a projecting piece.

In this case, the claw 13 has a height such that its tip slightly protrudes from the fluted portion 6a.

As a result, the under clearer roller a attached to the hem roller portion of the back bottom 1 aligns the protrusion 5 of the arcuate convex portion 3 with the claw 13 on the neck 12 of the back bottom roller 6.
As the back bottom roller rotates, the pawl 13 engages with the protrusion 5.

By installing the under clearer roller as described above, fluff removal is performed as follows.

As shown in FIG. 4, the under clearer roller A is installed in contact with the back bottom roller 6 and the middle bottom apron roller 7, and is attached to this roller 6 mainly by pressure contact with the lower part of the back bottom roller 6 by the support spring 11. Driven rotation.

As shown in FIG. 2, as the back bottom roller 6 rotates, the claw 13 on the neck 12 engages with and pushes the projection 5 of the under clearer roller a.

As a result, the under clearer roller a rotates at the same circumferential speed while its arcuate convex portion 3 is in contact with the bottom roller 6, engaging the pawl 13 and the projection 5, as shown in FIG.

Then, the claw 13 and the protrusion 5 are disengaged, and the under clearer roller a is released from the support spring 11 as shown in FIG.
The under clearer roller a does not rotate until it is pushed up and its arcuate groove 2 comes into contact with the bottom roller, and then the claw 13 engages with the protrusion 5.

That is, the under clearer roller a has an arcuate groove 2 having a diameter slightly larger than that of the back bottom roller 6, and is in elastic contact with the circumferential surface of the bottom roller 6, while the surface rasher cloth 4 to touch the surface of the bottom roller 6.

In this way, the under clearer roller a rotates at the arcuate convex portion 3 and stops at the arcuate groove 2, thereby performing intermittent rotation.

That is, for example, in the case of an under clearer roller provided with four arcuate grooves as shown in the drawings, the under clearer roller rotates intermittently one rotation for every four rotations of the back bottom roller.

During the stoppage of this intermittent rotation, the under clearer roller a rubs the surface of the back bottom roller 6 with the rasher cloth 4, so that the lint etc. adhering to the roller surface can be removed from the roller surface as shown in FIG. 2B. stripped from.

That is, unlike the conventional continuous rotation at the same circumferential speed, the stripping action of the real roller a is performed by sliding in a stopped state, so that the fluff is peeled off as soon as it adheres to the roller.
It does not adhere to or wrap around the roller surface, and has no adverse effect on the quality of the yarn.

Furthermore, since this under-clearer roller is in light contact with the apron of the middle bottom apron roller, it is possible to remove fluff, etc. from the apron surface by intermittent rotation thereof.

Note that the rasher cloth to be attached to the roller is not limited to this, and may be a rubber plate with a finely roughened surface.

Next, the performance of this under-clearer roller was compared with that of a conventional clearer roller in terms of the winding rate of the back-bottom hem roller, and the results were as shown in the following table.

(Number of test weights: 204) As shown in the table above, in the conventional example, 30 days after regular cleaning, there was fly fluff adhesion to the extent that fluff was attached to the fluted parts corresponding to more than half of the weights.
In the case of the present invention, the adhering fluff was completely removed to the extent that winding of the fluff was prevented.

As explained above, the present invention forms arcuate grooves with a slightly larger diameter than the bottom roller in the axial direction of the circumferential surface, covers the entire circumferential surface with a rasher cloth, and also provides protrusions on the arcuate protrusions between the grooves. Since the above-mentioned protrusion is engaged with a pawl provided on the bottom roller shaft, the under clearer roller contacts the bottom roller during intermittent rotation and rotation stop due to engagement between the protrusion and the pawl of the back bottom roller. Since the surface contact of the arcuate grooves of the clearer roller produces a sliding action, the fluff adhering to the roller is immediately peeled off from the roller surface after adhesion, and does not wrap around the roller.

The contact and sliding action of this arcuate groove is actively carried out as a stripping action by the support spring's pressure contact with the bottom roller and surface contact, and the adhered fluff is reliably removed and the bottom roller is almost completely cleaned. done to.

Further, according to the present invention, since the under clearer roller is in light contact with the middle bottom apron roller, it is also possible to remove fluff adhering to the apron.

The present invention is easy to manufacture, and since there is no wrapping around the bottom roller during use, it is much more effective in terms of operation management than conventional rollers that require scraping of wrapped fluff.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view thereof;
Figures 2A and B are longitudinal side views showing the operating procedure, Figure 3 shows the central neck of the bottom roller with the claw attached, Figure A is a front view, Figure B is a sectional view, and Figure 4 is a cross-sectional view. FIG. 2 is a side view of the present roller attached to a three-wire roller part of a spinning machine. 2...Circular concave groove, 3...Circular convex portion,
4... Lasha cloth, 5... Protrusion, 13.
...Claw, a...Under clearer loaf.

Claims (1)

[Scope of utility model registration request] An arcuate groove with a diameter slightly larger than that of the bottom roller is formed in the axial direction of the circumferential surface, and the entire circumference is covered with rasp cloth, and a projection is provided on the arcuate convex portion between the grooves, and the projection is attached to the bottom roller shaft. An under clearer roller for a spinning machine, characterized in that it engages with a claw provided on the top.