JPS6034687Y2 - Yarn wrapping prevention roll - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a roll for preventing yarn twisting.

When a tow consisting of many single fibers is transported on a roll, if a few broken single yarns are shipped in the tow, the broken single yarns will adhere to the roll surface and wind up on the roll, causing the tow to become damaged. As the yarn is transported, the broken single yarn becomes wrapped around the roll, and the broken single yarn spreads to other single yarns, rapidly increasing the amount of single yarn wrapped around the roll.As a result, fuzz occurs. This causes deterioration in the appearance of the tow, deterioration in quality (strength, etc.), and even breakage of the tow, which impedes good processability of the tow.

This phenomenon is particularly noticeable in the case of untwisted tow.

If the single yarn gets wrapped around the transfer roll, the conventional method
The only options available were to continue to flow until the transfer was completed and reject the product, or to remove the wound single fibers by scratching the roll surface with bare hands.

When these methods are used to prevent the single yarn from being wound around the roll, the yield decreases or the work becomes unstable, which poses problems both economically and in terms of work.

As a result of studying the above-mentioned problems, we have arrived at the present invention. By using the roll of the present invention, even if a broken single yarn wraps around the roll surface when a tow consisting of a large number of threads is transferred by the roll, This can greatly contribute to preventing the spread of single yarn breakage and lowering the product defect rate.

The yarn wrapping prevention roll of the present invention will be explained in more detail with reference to the drawings.

Figure 1 is a front view of the roll of the present invention, Figure 2 is a front view of the guide, Figure 3 is a partially enlarged view of the roll of the present invention, and Figure 4 is a view of the roll of the present invention when it is used. FIG.

Fig. 1 shows an example of a roll used in the present invention, and 1 shows a groove cut on the roll surface over the entire yarn running width, 2 shows an example of a yarn wrapping prevention guide that runs on this groove surface, 4 indicates tow.

The groove 1 cut into the roll surface can be cut at various angles to the roll surface, but as shown in FIG. By creating a continuous groove that returns to the origin, the yarn wrapping prevention guide can reciprocate the roll surface across the gold mine without stopping as the roll rotates, and is extremely efficient in preventing yarn breakage. It is possible to prevent the paper from getting stuck to the roll.

In addition, as shown in Figure 3, it is important to make the angle α of the groove with respect to the running yarn as wide as possible, in order to enhance the effect of preventing the yarn from winding up on the roll. This is a good thing.

In addition, if the width of the groove is too large, the yarn may damage the yarn as it runs, so it is preferable to make the groove as narrow as possible. It is preferable to have a width that does not impair surface running.

In addition, the return portion of the groove shown in Figure 1 must be placed as far outside the working width of the roll as possible to prevent the yarn running on the roll surface from falling into the groove. be.

The shape of the guide running in the groove of the roll is not particularly limited as long as it has the ability to cut the yarn wound around the roll.

By using the guided roll of the present invention, even if a single yarn breakage occurs when the yarn runs on the roll surface, this single yarn is prevented from winding up on the roll surface, and the single yarn breakage does not occur on the normal yarn. Spreading the word can be carried out efficiently and without much human effort.

[Brief explanation of drawings]

Figure 1 is a front view of the roll of the present invention, Figure 2 is a front view of the guide, Figure 3 is a partially enlarged view of the roll of the present invention, and Figure 4 is a side view of the roll of the present invention. It shows. 1...Groove, 2...Guide, 4...
...Tou.

Claims (1)

[Scope of utility model registration request] A yarn wrapping prevention groove 1 is cut on the surface, and the yarn wrapping prevention guide 2 is cut into the groove 1 on the surface other than the yarn contacting part of the roll.
This roll is equipped with a mechanism that allows it to be scanned along the lines.