JPS605006Y2 - Automatic yarn guiding device for waxing device in spinning machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic thread guiding device for a waxing device in a spinning machine, and more specifically, the invention relates to an automatic thread guiding device for a waxing device in a spinning machine. This relates to a device that has been used.

The yarn produced by a spinning machine and wound onto a bobbin is finally passed through a loom, knitting machine, etc. to be made into woven or knitted fabrics.

However, especially during knitting, when the yarn comes into contact with knitting needles or guides that operate at high speeds, large frictional resistance occurs on the yarn, causing yarn breakage and fuzzing, which not only hinders the operation of the knitting machine but also causes knitting damage. becomes.

For this reason, conventional techniques have been used to coat thread with wax to give it smoothness when it is wound onto a bobbin.
Attempts have been made to eliminate the above-mentioned disadvantages in knitting machines.

By the way, when waxing the yarn when winding the yarn in a spinning machine, the requirements are that the waxing be applied to the yarn uniformly at all times, and that the unit price of the waxing device be low since it is installed on each spindle. However, it goes without saying that the waxing effect is caused by the attachment of paraffin molecules to the yarn, so naturally the amount of wax is reduced and deformed at the yarn contact area.

Therefore, the state of contact between the thread and the wax includes elements that become non-uniform over time.

As a means to solve this problem of non-uniformity of the contact state, an idea was proposed to make the wax annular and rotate it continuously.Moreover, incorporating an active rotation transmission means had the disadvantage of increasing the price. Devices have been implemented in various forms based on the extremely rational idea of making the thread contact and rotate the side surface of the ring wax by utilizing the running of the thread.

However, in conventional devices, the rotation of the wax is not smooth, and no matter how smooth the rotation support part of the wax is made,
A phenomenon was observed in which the wax repeatedly rotated intermittently.

When we looked into the cause of this, we discovered that the running thread creates streaks and grooves in some places in the wax, and the thread periodically gets stuck in these streaks and grooves, temporarily blocking the rotation of the wax and causing the thread to traverse. It turns out that this is because the wax separates from the streaks and grooves at the angle and rotates the wax again.

As a result of the unsmooth rotation of the wax, the contact between the thread and the wax naturally becomes uneven, and after long-term operation, the lines and grooves mentioned above become deeper and deeper, and the waxing action becomes uneven, resulting in the final In this case, the thread cannot be removed naturally from the groove.

Therefore, waxing is hardly performed after this point.

Recognizing that the cause of this inconvenience is that in conventional devices, the thread contacts only the wax surface, and the wax is rotated depending on this contact resistance, the inventor of the present invention has developed a system that requires rotating the wax. The idea was to satisfy the requirements of waxing and waxing by rotating it together with the wax while also sharing the work with an object separate from the wax.As a result, we created an annular wax that protrudes from the side of the wax and is integrated with the wax. A waxing member consisting of a solid cylindrical part is loosely fitted to a shaft between a thread pulling mechanism and a thread winding mechanism, and the wax side surface and An application was previously filed after obtaining a configuration in which the waxing member is arranged so that the curved surfaces of the cylindrical portion are in contact with each other.

On the other hand, during thread splicing, doffing, etc., the thread may temporarily leave the waxing position, or a new thread may run between the thread pull-out mechanism and the thread winding mechanism, but in any case, the thread is guided to the correct waxing position. It is necessary to do so.

The present invention provides a waxing device configured as described above, which is capable of automatically guiding the yarn to the waxing position.

As shown in FIG. 1, for example, the yarn spun by the spinning unit 1 is first hung on a guide 2, then passed through a yarn pull-out mechanism consisting of a pull-out roller 3 and a pressure roller 4 in contact with it, and then the yarn is drawn upward. In a spinning machine in which the yarn is passed through a path difference absorption guide 5 and a traverse guide 6, and is finally wound up by a yarn winding mechanism consisting of a winding drum 7 and a package 8 in contact with the yarn, the waxing device is a yarn pulling mechanism. It is installed between the thread winding mechanism and the thread winding mechanism.

In the illustrated example, an arm 10 elastically supported by a fixed shaft 9 extends downward, and the pressure roller 4 is supported at the tip thereof, so that the waxing device is attached to the arm 10.

That is, the bracket is fixed to the arm 10 with screws 12.
This bracket consists of a horizontal part and a vertical part, and the horizontal part has a thread regulating device 13 having a thread guide slope 131 and a thread regulating groove 132, and the vertical part has a shaft 14 for mounting the waxing member. The attachment forms part 15.

The waxing member to be attached to the shaft 14 consists of at least a hollow cylindrical portion 16 and an annular wax 17 integrated therewith.More specifically, as clearly shown in FIG. 16 is integrally formed with several wax rotation preventing protrusions 18 formed on its circumferential surface, a positioning plate portion 19 for wax 17, and a mounting portion 20 having an inner diameter larger than the diameter of shaft 14.

At this time, unlike the wax 17, the cylindrical portion 16 is preferably made of a material such as a resin product, which is resistant to wear even when it comes into contact with a solid object, ie, a thread, and which has a large frictional resistance with the thread.

Then, the annular wax 17 is inserted into the cylindrical portion 16 and is further pushed strongly into the rotation preventing protrusion 18 while the inner diameter is being scraped, until the dish portion 19 comes into contact with one side of the wax 17. than the cylindrical part 16
make it stand out.

Therefore, when the waxing member is integrated with the cylindrical portion 16 protruding from the side surface of the wax 17, the waxing member is attached to the shaft 1.
By inserting the mounting portion 20 into the mounting portion 4, the mounting portion 20 is mounted in a loosely fitted state.

At this time, it is advantageous for the shaft 14 to be in an inclined state, so in order to prevent the waxing member from falling, the shaft 14 is mounted
4 is equipped with a rubber stopper 21, and this stopper 21 has an outer diameter that allows it to enter into the cylindrical portion 16.

For installation, the desired angle of inclination of the shaft 14 can be obtained by turning the bracket around the screw 12.

During the operation of the spinning machine, the thread taken out from the grasping portion of the pull-out roller 3 and pressure roller 4 as a thread-drawing mechanism is pressed against the wax 17 as shown in FIG. In addition to contacting the side surface, the thread is regulated by the regulation groove 132 despite the traversing action as shown in FIG. 4, and reaches the thread winding mechanism above while always in contact with the circumferential surface of the cylindrical portion 16. As the thread runs, it rotates the cylindrical portion 16 and therefore also rotates the wax 17, so that the thread contacts uniformly in the circumferential direction on the side surface of the wax, and uniform waxing is performed.

Now, in a waxing device having such a configuration, when performing yarn splicing, for example, the spliced yarn in the spinning unit 1 is immediately brought under the influence of the yarn winding mechanism, goes directly to the mechanism, and is passed through the yarn drawing mechanism and waxing device. The match will be made afterwards.

Since the thread is conventionally automatically engaged with the thread pulling-out mechanism by various means, the device of the present invention utilizes this automatic thread-engaging means with the thread pulling-out mechanism. Further, automatic thread guidance to the waxing device is performed by paying attention to the presence of the thread regulating device 13, the traversing phenomenon of the thread, and the presence of thread tension.

As shown in FIG. 1, for example, as an automatic thread combination means for the thread pulling mechanism, a cutout 23 is provided at the intersection of the circumferential surface and the side surface of the pressure roller 4, and the thread is engaged with the cutout 23. By this means, the thread is transferred to the joint between the pressure roller 4 and the pull-out roller 3, and as shown in FIG. Since the threads come into contact with each other, there is a method for moving the thread to the joining point by tension, but an automatic thread guiding device will be described below with respect to an embodiment in which the means shown in FIG. 1 is adopted.

Immediately after the yarn splicing, the yarn goes directly from the spinning unit 1 to the yarn winding mechanism, which is located on one side of the pressure roller 4 and of course at position a, which does not hit the wax 17.

Next, the yarn moves from one side of the pressure roller 4 to the other side under the guidance of the traverse guide 6, and therefore the thread moves from one side of the pressure roller 4 to the other side.
The thread engages with the notch 23 of the cylindrical part 16 and is gripped at the joint point with the pull-out roller 3. At this time, the thread is inserted into the cylindrical part 16 so that it can overcome the circumferential surface of the cylindrical part 16 without hitting it. As is clear, the guide slope 131 of the thread regulator 13
It is necessary to project forward from the tip of the cylindrical portion 16 at the position where it intersects with the thread regulating groove 132.

As a result, the yarn engaged with the pull-out roller 3 is transferred to the cylindrical portion 16.
The robot moves along the guide slope 131 as shown at position b without hitting the target, and becomes in a tensioned state.

When the yarn further moves to the yarn regulating groove 132 due to the traverse action, the yarn slides into the groove 132 due to the tension and comes into contact with the tip of the cylindrical portion 16 as shown at position C.

That is, the position of the thread regulating groove 132 in the left-right direction is defined so as to overlap a part of the cylindrical portion 16.

In this state, the thread is regulated by the regulation groove 132 and is further traversed at a relatively large angle around the regulation groove 132, and because it is in contact with the tip of the cylindrical part 16, it is still under strong tension and tends to slip. position allows the thread to easily slide down to position d at the next moment.

In other words, the yarn in the regulating groove 132 is allowed to separate from the tip of the cylindrical portion 16 in a predetermined direction due to the traversing action,
Furthermore, the height position of the yarn regulating groove 132 is determined so that the yarn can come into contact with the curved surface of the cylindrical portion 16 during one reciprocation of the traversing action.

The waxing device to which the present invention is to be adopted is such that the traversing motion performed by the running yarn has a reciprocating amount system in the cylindrical portion 1.
6.Since it can contact the circumferential surface, the regulating groove 1
It is desirable that the position of 32 be as close to the center of the cylindrical portion 16 as possible, and this requirement should be met within the range in which the thread at position C can automatically move to position d by the traversing action.

The transition from position C to position d largely depends on the presence of thread tension, but in order to make this transition even easier, the tip of the cylindrical portion 16 is shaped like a truncated cone 16' as shown in FIG. You can also do this.

The thread thus guided to position d is in contact with the side surface of the wax 17 and is also in constant contact with the cylindrical portion 16, so that the wax 17 can be rotated smoothly 1 and a uniform waxing action can be achieved.

The embodiment shown in FIG. 2 is also substantially the same as the embodiment shown in FIG. 1, except that the means for securing the yarn to the pressure roller 4 is different.

As described above, the device of the present invention has the guide slope 13 of the thread regulating device 13.
1 and the position of the yarn regulating groove 132 are related to the cylindrical portion 16 protruding from the side surface of the wax.However, by utilizing the traversing action of the running yarn and the yarn tension, the yarn can be moved to the waxing position extremely smoothly. It can be automatically guided to.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing an embodiment of the device of the present invention, Fig. 2 is an overall side view showing another embodiment, Fig. 3 is a perspective view of the main part of the embodiment shown in Fig. 1, and Fig. 4 is a thread FIG. 5 is a plan view, and FIG. 6 is an exploded perspective view of the waxing member. (3... Pull-out roller, 4... Pressure roller,) Thread drawing mechanism, (7... Winding drum, 8... Package,) Thread winding Taking mechanism, (131...thread guide slope, 132...
・Thread regulating groove,) Thread regulating tool 13.14... Attaching to shaft, 16... Concave cylindrical part, 17... Annular wax.

Claims (1)

[Scope of utility model registration request] A waxing member consisting of an annular wax 17 and a cylindrical portion 16 that protrudes from the side surface of the wax and is integrated with the wax is attached to the shaft 14 in a loose fit between the thread pulling mechanism and the thread winding mechanism. In this waxing device, a thread regulating device 13 having a thread guiding slope 131 and a thread regulating groove 132 connected to the thread guiding slope 131 is installed between the waxing member and the thread pulling mechanism. At the intersecting position, the position in the front-rear direction is defined so that it protrudes beyond the tip of the cylindrical part 16, and the position in the left-right direction is defined so that the regulating groove 132, which is the starting point of the traversing of the thread, overlaps a part of the cylindrical part 16. Furthermore, the yarn in the regulating groove 132 is allowed to separate from the tip of the cylindrical portion 16 in a predetermined direction during the traversing action, and moreover, during one reciprocation of the traversing action, the yarn is allowed to move away from the cylindrical portion 16. An automatic yarn guiding device characterized in that the height position of the yarn regulating groove 132 is determined so that the yarn regulating groove 132 can come into contact with a peripheral surface.