JPS6317740B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a rotary guide type tube winding machine that winds a tube by winding a thread guide around the tube.

By attaching a yarn guide to an annular rotor (disc or flyer) that rotates around the tube, the yarn is rotated around the tube of the yarn guide, and the yarn from the yarn supply source is supplied to the tube through the yarn guide. Rotary guide type tube winders of the winding type are known. This type of tube winding machine does not wind the yarn by rotating the tube, but instead winds the yarn by rotating the yarn guide around the tube. One twist is applied to the yarn, and by this twisting, the winding tube is attached to the shuttle of the loom and the yarn is fed out from the tip of the tube and inserted into the weft. The purpose is to offset and eliminate the twist, thereby making it possible to insert the yarn without twisting. This type of tube winding machine can be used, for example, when winding flat yarn such as foil yarn into a tube and feeding it without twisting and inserting the weft, or when winding multiple yarns in a lined manner. This method is applied not only when inserting the weft without twisting, but also when twisting the yarn during weft insertion is a problem.

However, in this kind of conventional rotary guide type tube winding machine, the thread guide attached to the rotor and circulating around the pipe is designed to guide the thread in a twistable manner, so it does not hold the thread tightly. It was not intended to be held and forced to twist, but rather to guide the thread loosely, and for this reason, the thread was given one twist for each winding around the tube. could not necessarily be realized accurately, and it was impossible to avoid the occurrence of some degree of uneven twisting.Therefore, it was not possible to completely accurately realize that the yarn could be untwisted from the tube. Particularly when applied to tube winding of flat yarns such as foil yarns, where even the slightest twist is a problem during weft insertion, good results have not been obtained in terms of accuracy.

The present invention solves this problem, and it is possible to accurately provide one twist to the yarn for each turn of the yarn to the tube, and in particular, it is possible to weft a flat yarn such as a foil yarn without any twist. We provide a rotary guide type tube winding machine that can be applied to pipe winding to reliably achieve this purpose.The feature is that the thread guide that goes around the pipe can be used to slidably hold the thread. The yarn guide is constructed with a pair of guiding clamping members, and is configured to rotate once in the direction opposite to the direction of rotation while the yarn guide makes one rotation around the tube.

Embodiments of the present invention will be described below with reference to the drawings.

In the illustrated rotary guide type tube winding machine, a non-rotating spindle 2 is erected on a machine frame 1 forming a base.
A tube 3 is attached to the upper end of the spindle 2 so as to be held vertically. spindle 2
A pair of guide shafts 4 and 5 are provided on both sides of the machine frame 1 and a columnar frame 1' that is erected on the machine frame 1. It is installed between brackets 6 and 7 extending from the upper end. The pair of guide shafts 4 and 5 hold the rotor mechanism 20 so as to be vertically movable therealong. Further, a drive shaft 8 for rotationally driving the rotor mechanism 20 is installed vertically in parallel to the guide shafts 4 and 5 on the columnar frame 1'.

The machine frame 1 is provided with a traverse cam 9 for giving the spindle 2 vertical traverse motion in the axial direction with a constant stroke, and the traverse cam 9 and one of the pair of guides. A drive mechanism 10 is provided, which includes a motor 11 and a suitable rotational force transmission means 12 such as a gear mechanism, for rotating the rod 4 and the drive shaft 8 at predetermined appropriate speeds.

The rotor mechanism 20 includes a rotor 21 whose center is set on the axial center of the spindle 2 and therefore the tube 3, and a ring gear 23 arranged concentrically over the rotor 21 in an overlapping manner. Rotor 21
has a through hole 2 in the center through which a tube 3 can be inserted flexibly.
2, with teeth 21 on the outer periphery.
It is configured as a gear with a. Further, the ring gear 23 has teeth 23a visible on its outer periphery and teeth 23b on its inner periphery. The rotor 21 and ring gear 23 are surrounded by an annular holding frame 24, and are rotatably held by the holding frame 24 via bearings 25, 26 such as balls. A bearing 27 is interposed between the rotor 21 and the ring gear 23, so that the rotor 21 and the ring gear 23 can rotate independently.

Guide holes 28 and 29 are provided on both sides of the holding frame 24 and penetrate vertically in the axial direction.
A pair of guide shafts 4 and 5 described above at 8 and 29 are slidably inserted. Here, the guide shaft 4 on the side that is rotationally driven by the above-mentioned drive mechanism 10 of the pair is configured in the shape of a threaded rod with a screw-shaped notch 4a formed around the periphery, and the tip end is attached to the notch 4a. A lever-shaped pawl member 30 is attached to the holding frame 24 and is engaged and biased by a spring.
As the pawl member 30 is moved by the notch 4a due to the rotation of the guide shaft 4, the holding frame 24 and therefore the entire rotor mechanism 20 are moved from below to above along the guide shafts 4 and 5. It is adapted to be moved at a constant speed in the axial direction of the tube 3. Furthermore, by releasing the engagement of the pawl member 30 with the notch 4a, the holding frame 24, and thus the entire rotor mechanism 20, can be freely slid from above to below along the guide shafts 4 and 5. It's summery.

In the rotor 21 of the rotor mechanism 20, a hollow threading shaft 31, which passes through the rotor 21 vertically in the axial direction, is rotatable via a bearing at a predetermined portion offset at a predetermined radial distance from the center of the rotor 21. installed on. At the lower end side of the threading shaft 31 that protrudes downward from the rotor 21, there is a
Holding members 32a and 32b, which are made up of a pair of leaf spring members, are fixedly attached to the thread T passing through the threading shaft 31 so that the thread T is slidably held and guided from both sides. A thread guide 32 is configured to go around the tube 3 and guide the winding of the thread T. On the upper end side of the threading shaft 31 that protrudes upward from the rotor 21, there is a
A small gear 33 having teeth 33a on its outer circumference that mesh with teeth 23b on the inner circumference of the ring gear 23 is fixedly attached.

A cutout is provided in the side of the holding frame 24 facing the drive shaft 8, and in this cutout, a first drive gear having teeth 34a on the outer periphery that mesh with the teeth 21a on the outer periphery of the rotor 21 is provided. 34, and a second driving gear 35 having teeth 35a on its outer periphery that mesh with teeth 23a on the outer periphery of the ring gear 23. These first and second drive gears 34, 35 are
They are integrated with each other and attached to the drive shaft 8. Here, the first and second drive gears 34, 35
is attached to the drive shaft 8 by a pair of keys or the like so as to be able to slide freely along the drive shaft 8, and its lower surface is supported by a support member 36 consisting of a support roller or the like attached to the holding frame 24. .

Therefore, the first and second drive gears 34, 35 are
While being rotated integrally in the same direction by the rotation of the drive shaft 8, as the holding frame 24 moves upward along the guide shafts 4 and 5, the outer periphery of the rotor 21 is pushed by the support member 36. The teeth 21a and the ring gear 23 are moved integrally along the drive shaft 8 while maintaining their engagement with the teeth 23a on the outer periphery, and in this way, the rotor 21 and the ring gear 23 are held in the holding frame 24. While being moved in the axial direction of the tube 3, it is rotated around the tube 3 in the same direction. However, the rotor 21
Due to the rotation of the ring gear 23, the thread guide 32 is rotated around the tube 3 together with the threading shaft 31 and the gear 33, and at the same time, due to the rotation of the ring gear 23, the thread guide 32 meshes with the teeth 23b on the inner circumference of the ring gear 23. Gear 33 on shaft 31
is rotated, so that the thread guide 32 is rotated together with the threading shaft 31.

Here, the teeth 34a of the first drive gear 34
and the teeth 21a on the outer periphery of the rotor 21, and the teeth 35a of the second drive gear 35 and the ring gear 23.
The ring gear 23 has a different tooth number ratio from the outer peripheral teeth 23a of the ring gear 23 than the rotation speed of the rotor 21.
The rotation speed ratio is set to a low rotation speed. As a result, the rotation speed ratio, the teeth 33a of the gear 33 of the threading shaft 31 and the teeth 2 of the inner circumference of the ring gear 23 are determined.
3b, while the rotor 21 rotates once, the gear 33 of the threading shaft 31, and therefore the thread guide 32, rotates once in the opposite direction to the rotation direction of the rotor 21. . In other words, the rotor 21
While the thread guide 32 makes one revolution around the tube 3, the thread guide 32 rotates once in the direction opposite to the rotating direction of the revolution. A pair of clamping members 32a, 32b
The bearing frame 24 rotates around the tube 3 while maintaining the same orientation without changing its orientation relative to the holding frame 24.

In order to do this, if the ratio of the number of teeth between the teeth 33a of the gear 33 of the threading shaft 31 and the teeth 23b on the inner circumference of the ring gear 23 is n:m, then the rotor 21 and the ring gear 23 must be The rotation speed ratio is m:
It is sufficient to set it as m−n, and it is set like this.

To give an example, for example, the gear 3 of the threading shaft 31
3 teeth 33a and the teeth 23 on the inner circumference of the ring gear 23
When the ratio of the number of teeth with b is 1:5, the rotation speed ratio of the rotor 21 and the ring gear 23 should be 5:5-1, that is, 5:4. Based on this, the number of teeth in this case is For example, set the gear 33 of the threading shaft 31.
The number of teeth 33a on the inner periphery of the ring gear 23 is 60, the number of teeth 21a on the outer periphery of the rotor 21 is 70, and the number of teeth 23a on the outer periphery of the ring gear 23 is 75. , first drive gear 34
The number of teeth 34a is 35, and the second drive gear 35
For example, the number of teeth 35a is set to 30.

In this way, this tube winding machine passes the thread T from the thread supply source 40 provided at a predetermined position through the inside of the threading shaft 31 from above, and passes it through the pair of clamping members 32 of the thread guide 32.
A and 32b sandwich and guide the material and supply it to the outer periphery of the tube 3, thereby winding the tube.

Next, to explain its function, the tube 3 is attached to the spindle 2.
, and when winding the tube 3 by supplying the thread T through the thread guide 32 as described above,
Initially, the rotor mechanism 20 and the first and second drive gears 3 are arranged so that the thread guide 32 is located at the bottom of the tube 3.
4 and 35 are moved downward, and the drive mechanism 10 is operated in this state. Then, due to the rotation of the traverse cam 9, the spindle 2, and therefore the tube 3,
It can traverse up and down with a constant stroke in the axial direction without rotating. At the same time, due to the rotation of the first and second drive gears 34 and 35 due to the rotation of the drive shaft 8, the rotor 21, the ring gear 23, and the gear 33 of the threading shaft 31 are rotated in the predetermined relationship described above. Each time the thread guide 32 goes around the tube 3, it is rotated once in the opposite direction. At the same time, the entire rotor mechanism 20 moves upward along the guide shafts 4 and 5 due to the rotation of the guide shaft 4, and the first and second drive gears 3 follow this movement.
By the movement of the thread guides 4 and 35 along the drive shaft 8, the thread guide 32 is maintained in the above-mentioned rotation and rotation while the tube 3 is moved along the drive shaft 8.
is gradually moved in the axial direction from the bottom to the top. In this way, the thread T is twisted in a predetermined layer from the bottom of the tube 3 to the top (from the base side to the tip side) while being twisted once per turn with traversing. Winding is achieved.

However, in the lever tube winding machine, especially the thread guide 32 is
Rather than simply guiding the thread T loosely, the thread T is firmly held and guided by a pair of clamping members 32a and 32b, and the thread guide 32 is simply guided by the rotation of the rotor 21. Yotsute tube 3
By having a structure in which the yarn T is not only rotated around the tube 3 but also rotated once around the tube 3 by one rotation of the rotor 21, the yarn T is forcibly rotated once in the direction opposite to the rotation direction of the rotation. In this method, each time the tube 3 is wound, exactly one twist is forcibly applied to achieve tube winding. Therefore, when a winding tube is attached to the shuttle of a loom and the yarn is fed out from the tip of the tube to insert the weft, it is accurate to cancel and eliminate the twist that occurs in the yarn once per turn. This method enables the yarn to be completely untwisted and weft-inserted, and this can be achieved very effectively and accurately especially when a flat yarn such as a foil yarn is used as the yarn T. It is something.

In the figure, reference numeral 37 is an auxiliary thread guide that assists the thread guide 32 in guiding the thread T to the tube 3, and is provided as necessary. The auxiliary thread guide 37 is provided directly below the thread guide 32 and attached to the rotor 21, and rotates around the tube 3 along with the thread guide 32. As this auxiliary thread guide 37, various suitable configurations can be used, and in the illustrated example, a pair of rotatable left and right small flanges 38, 38 are used.
In between, a plurality of (for example, four) thin rods 39 arranged at appropriate intervals on the periphery are horizontally suspended, and the thread T from the thread guide 32 crosses the thin rods 39. The yarn T is guided by contact and supplied to the tube 3, and at this time, the twist imparted to the yarn T by the rotation of the yarn guide 32 is smoothly transferred toward the tube 3 by the thin rod 39.

Further, in the present invention, the pair of clamping members 32a and 32b in the thread guide 32 may have a mutually symmetrical shape or an asymmetrical shape, and a roller may be provided on either or both of them. In other words, the rollers may be used to clamp and guide the yarn, and in short, it is sufficient as long as the rollers can clamp and guide the yarn T in a slidable manner.

As is clear from the above description, according to the present invention, the thread guide that goes around the tube is configured with a pair of clamping members that slidably pinch and guide the thread, and the thread guide is moved around the tube. By rotating the thread once in the opposite direction to the circumferential direction during one rotation, the thread can be rotated once per turn, which was not so accurate with conventional rotary guide type tube winding machines of this type. It is possible to accurately realize tube winding in which the yarn is wound onto a tube by giving it a twist, and the yarn is paid out without twist by canceling out the one twist that occurs in the yarn when wefting the yarn from the winding tube and inserting the weft. It is possible to achieve weft insertion with complete accuracy, and in particular, it can achieve this with unprecedented accuracy as a tube winding machine for feeding and inserting flat yarns such as foil yarns in a completely untwisted state. It is something.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the entire tube winding machine, FIG. 2 is a partially cutaway plan view of the rotor mechanism, and FIG.
FIG. 4 is a perspective view of the thread guide section. 1... Machine frame, 2... Spindle, 3... Tube, 4, 5...
Guide shaft, 4a...notch, 8...drive shaft cam, 9...traverse cam, 10...drive mechanism, 20...rotor mechanism,
21...Rotor, 21a...Teeth on outer periphery, 22...Through hole, 23...Ring gear, 24...Holding frame, 28,
29... Guide hole, 30... Pawl member, 31... Threading shaft, 32... Thread guide, 32a, 32b... Clamping member,
33... Gear, 33a... Teeth, 34... First drive gear, 34a... Teeth, 35... Second drive gear, 35a
...Teeth, 36...Supporting member, 37...Auxiliary thread guide, 40
... Yarn supply source, T... Thread.

Claims (1)

[Scope of Claims] 1. A rotary guide type tube winding machine in which a yarn guide 32 is wound around a tube 3, and yarn T from a yarn supply source 40 is supplied to the tube 3 through the yarn guide 32 and wound. , the thread guide 32 is constituted by a pair of clamping members 32a and 32b that slidably clamp and guide the thread T, and the thread guide 32 is configured so that the thread guide 32 goes around the tube 3 once. A rotary guide type tube winding machine characterized by rotating once in the opposite direction to the circumferential direction during the rotation.