JPH0158108B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for removing cracks in a hank machine, which removes cracks directly by means of skein yarns without using a crack thread.

[Prior art and its problems]

Usually, skein rings for dyeing yarn are made as follows. First, a skein yarn bundle is made by winding a number of skein threads in a circular shape using a hank machine, and then this skein yarn bundle is passed through a skein yarn supplied from a separately installed skein removal device. Remove the cracks.

By the way, this type of crack removal method in the past has been carried out exclusively using crack yarn as described above. For example, the method for removing cracks shown in Japanese Patent Publication No. 51-23617 involves creating a plurality of thread loops in which each bundle is loosely wound so as to divide the skein thread bundle into a plurality of bundles. Gather each part of the ring in one place and connect them to each other. Also, special public service No. 55-34749
The crack removal method shown in the publication involves passing the cracked yarn supplied from a supply source in the skein width direction below the skein yarn to support the end of the skein yarn, and divides the skein yarn bundle into a plurality of pieces. Scoop up the middle part of the Hibiro yarn, pass the end of the Hibiro yarn through the scooped-up Hibiro yarn, and join the end yarns.

In this way, the reality is that most of the conventional crack removal is done using thread. For this reason, a separate gap yarn is required, and the process of removing the gap tends to become complicated.Also, a yarn feeding device, etc. is required for this purpose, which leads to an increase in the size of the hank machine as a whole. There is a problem that increases costs.

[Means for solving problems]

The purpose of the present invention is to provide a novel method for removing cracks that solves the problems that exist in the prior art, and is intended to remove cracks directly using skein yarn, and to achieve complete automation. be.

That is, the crack removal method according to the present invention is shown in FIG.
As shown in ~F, it has air suction ports 2o and 3o, and the suction ports 2o and 3o are provided with a bobbin thread pipe 2 and a thread transfer pipe 3 that move vertically and horizontally across the skein bundle P. The cracks are removed by controlling the movement and suction of these two pipes 2 and 3. First, the lower end thread L separated on one side of the skein bundle P that has been wound up is sucked by the bobbin thread pipe 2, and the upper end thread U
is moved to the other side across the outside of the skein bundle P containing the skein. Next, the suction port 3o of the thread transfer pipe 3 is moved from one side to the other side across the inside of the skein bundle P, so as to be positioned near the lower end thread L to be sucked into the bobbin thread pipe 2. . Then, the suction of air is switched from the bobbin thread pipe 2 to the thread transfer pipe 3, and the suction of the lower end yarn L is transferred to the thread transfer pipe 3, and the thread transfer pipe 3 is returned to one side and connected to a known thread tying device. Therefore, it is characterized in that the lower end thread L and the upper end thread U are tied together.

[Effect]

Next, the operation of the present invention will be explained.

According to the method of the present invention, crack removal is performed by the pair of suction pipes, the bobbin thread pipe 2 and the thread transfer pipe 3. For example, the pipes 2 and 3 can be moved up and down integrally, and the suction ports 2o and 3o can be moved left and right.

In removing the gaps, first, the lower end yarn L forming a part of the skein yarn bundle P is wound around the outer half of the skein yarn bundle P by the bobbin thread pipe 2. On the other hand, the lower end yarn L is further wound around the inner half of the skein yarn bundle P by the yarn transfer pipe 3. As a result, the lower end yarn L makes one revolution around the bundle of skein yarns P. Then, the lower end thread L that has gone around once is tied to the upper end thread U.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings. 1A to 1F are perspective views showing the crack removal method according to the present invention in order;
The figure is a plan view of a skein ring that has been finished removing cracks by the method of the present invention, Figure 3 is an explanatory diagram showing the movement path of the bobbin thread pipe, and Figure 4 is a diagram of the crack removing device used in the method of the present invention. FIG. 5 is a side view showing a part, and FIG. 5 is a front view of the same.

First, the outline of the crack removal device will be explained with reference to FIGS. 4 and 5. The skein bundle P is wound around the rotating skein frame 10, and has, for example, a hexagonal shape in side view as shown in FIG. In addition, a thread stopper 11 is arranged at a position slightly shifted to one side from the position where the skein thread is wound, and the lower end thread L is held by this thread stopper 11 at the beginning of winding, and is separated from the thread bundle P. be done.

The crack removing device R is disposed above the skein bundle P. The device R is equipped with a straight bobbin thread pipe 2 and a thread transfer pipe 3 bent in the middle. Ru. Each pipe has a suction port 2o, 3o at its lower end, and hooks 12, 13 for hooking a thread on the front side thereof. Suction port 2o, 3
o sucks air by negative pressure, especially each suction port 2
The suction of o and 3o can be selectively switched by a valve or the like.

On the other hand, 14 is an air cylinder for vertical driving, and can move each pipe 2, 3 vertically at the same time. This movement stroke becomes a predetermined stroke in the vertical direction for the skein located at the uppermost end.
Further, 15 is an air cylinder for driving a bobbin thread pipe, and the bobbin thread pipe 2 held in the holder 16 is driven via a link 17 and around a spindle 18, and the suction port 2o is connected to the air cylinder for driving the skein thread bundle. It is controlled to move left and right across the upper side of P. In FIG. 5, the bobbin thread pipe 2 shown by solid lines and imaginary lines shows the left and right positions when lowered, respectively. On the other hand, numeral 19 is an air cylinder for driving a yarn transfer pipe, and the yarn transfer pipe 3 held in a holder 21 is driven via a link 22 and around a support shaft 23, and the suction port 3o is used to drive the yarn bundle. It is controlled to move left and right across the lower side of P.
In FIG. 5, the thread passing pipes 3 indicated by solid lines and imaginary lines respectively indicate the left and right positions when lowered. In addition, the movement of each pipe in the left and right direction is carried out by the cylinder 15,
19, each is independently controlled.

Next, referring to FIG. 1, the above-mentioned crack removing device R
The crack removal method according to the present invention will be explained.

First, FIG. 1A shows the skein yarn bundle P in a state where the winding of the skein yarns has been completed. In this state, the bobbin thread pipe 2 and the thread transfer pipe 3 are raised and located on the other side of the skein bundle P in the figure. In addition, air suction is switched to the lower thread pipe 2 side.

Next, as shown in FIG. 1B, the lower thread pipe 2 descends, hooks the middle of the lower end thread L onto the hook 12 at the tip, and ascends. As a result of this rise, the lower end thread L comes off the cap 11 and is simultaneously sucked into the suction port 2o.

Then, as shown in FIG. 1C, the suction port 2o of the bobbin thread pipe 2 is moved across the top of the skein bundle P to the other side, and further lowered. The movement of the bobbin thread pipe 2 is shown in FIG. 3.

Thereafter, as shown in FIG. 1D, the suction port 3o of the yarn transfer pipe 3 is moved across the lower side of the skein bundle P to the other side. As a result, the suction port 3o is located near the lower end yarn L. In this state, if the suction is switched from the bobbin thread pipe 2 side to the thread transfer pipe 3, the suction of the lower end yarn L is shifted to the thread transfer pipe 3 side.

Next, as shown in FIG. 1E, when the yarn transfer pipe 3 is returned to its original position, that is, to the right side in the figure, the lower end yarn L goes around the skein yarn bundle P approximately once.

Then, as shown in Fig. 1F, the thread transfer pipe 3 is raised, the lower end thread L and the upper end thread U are brought together using a known thread tying device (knotter), and an arbitrary thread knot such as a single bow knot is performed. The result will be as shown in Figure 2, and the crack removal is complete.

In this way, the crack removing device R uses two pipes and moves the suction port by rotational drive, so the device can be constructed relatively easily and requires less installation space. As a result, complete automation through sequence control can be easily achieved.

Although the embodiments have been described in detail above, the present invention is not limited to these embodiments.
For example, the movement of the bobbin thread pipe and the thread passing pipe may be in a direction obtained by combining vertical and horizontal vectors, that is, in an oblique direction or in an arcuate direction. Other changes may be made in the structure, shape, arrangement, material, etc. of each pipe or other details without departing from the spirit of the present invention.

〔Effect of the invention〕

As described above, the method for removing cracks in a hank machine according to the present invention controls the movement and suction of the bobbin thread pipe and thread passing pipe, and also uses the skein thread to remove cracks. achieve great effect.

Since the wide yarn is not used at all, the wide yarn, its installation space, yarn feeding device, etc. are not required, and the effort for setting the wide yarn is also unnecessary. Therefore, it is possible to significantly reduce costs and downsize the entire hank machine.

Since the skein itself is used, the crack removal itself is simplified, and can be done by controlling the movement of a pair of pipes, resulting in further cost reductions, improved workability and productivity through easy complete automation. You can improve your skills.

[Brief explanation of drawings]

Figures 1 A to F: Perspective views showing step by step the crack removal method according to the present invention, Figure 2: A plan view of a skein ring after crack removal has been completed by the method of the present invention, Figure 3.
FIG. 4: A side view showing a part of the crack removal device used in the method of the present invention. FIG. 5: A front view of the same. In addition, in the drawing, 2: bobbin thread pipe, 3: thread passing pipe,
2o, 3o: Suction port, P: Skein yarn bundle, L: Lower end yarn,
U: Upper end thread.

Claims (1)

[Claims] 1. It has an air suction port, and is equipped with a bobbin thread pipe and a yarn passing pipe that move vertically and horizontally across the skein bundle, and carries the separated lower end yarn on one side of the skein bundle. Suction is carried out through the bobbin thread pipe, and the thread is moved to the other side by crossing the outside of the skein bundle including the top end thread, and the suction port of the thread passing pipe is moved from one side to the other side by passing the suction port across the inside of the skein bundle including the top end thread. By moving it to the side, it is positioned near the lower end yarn that is sucked into the bobbin thread pipe, and the suction of air is switched from the bobbin thread pipe to the thread passing pipe, and the suction of the lower end thread is transferred to the thread passing pipe. A method for removing cracks in a hank machine, which is characterized by returning the thread passing pipe to one side and tying the lower end thread and the upper end thread together.