JPH0144203Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a guide for a linear body in a buncher twisting machine, and particularly to an improvement of a flyer guide attached to a flyer rotating at high speed.

Conventionally, in a buncher twisting machine as shown in Fig. 1, a large number of linear body guides have been used.
Usually at least 10 guides are used, most of which are roller guides. However, the purpose of use of these guides differs depending on their mounting position.

For example, the purpose of using a guide is (1) to change the direction of movement of a linear object, (2) to give twist to multiple linear objects, (3) to prevent twisting of the linear objects, and (4) to change the direction of movement of a linear object. Positioning the body (5) Pulling the linear object (6) Paying out the linear object (7) Preventing the linear object from being strained (8) Preventing vibration (9) Adjusting the tension of the linear object These can be roughly classified into the following three types according to their functions.

(1) The function of guiding the linear object (2) The function of using the frictional force between the guide surface and the linear object (3) The function of transmitting force to the linear object Here, the flyer guide guides the linear object. The wire body rotates and passes around the cradle of the bunchier wire twisting machine.

In this flyer guide, the linear body is bent to the most extreme degree and is swung around at high speed, which results in the harshest conditions for the linear body.

That is, the flyer of a bunchier stranding machine has a diameter of about 500mm to 600mm, and usually has a diameter of 3000r.pm to
Since it rotates at a rotation speed of 5000r.pm, the linear body also draws a trajectory with a radius of approximately 250mm to 300mm, and the rotation speed is 3000r.pm.
It rotates at ~5000r.pm, and the linear body rotates at about 60m/
The wire is pulled at a speed of 100 m/min to 100 m/min, and the wire is twisted before and after the flyer, so the wire moves while rotating on the guide surface. The tension of the linear body in this part is approximately 10Kg.
Sometimes it becomes.

As mentioned above, the flyer guide of a buncher stranding machine is used under severe conditions, so it is necessary to use a conventional flyer guide, for example, a roller guide 2 with a bearing 1 inside as shown in Fig. 2A, or a The flyer guide 4 shown in FIG. 2B, in which the carbide tip 3 is provided in the pipe, has the following drawbacks.

That is, the roller guide 2 shown in A above
, the position where this is attached is diameter 500
mm to 600 mm, and since this fryer rotates at 3000r.pm to 5000r.pm, the grease in the bearing 1 of the roller guide 2 will scatter due to centrifugal force, resulting in poor roller rotation. , the twist of the strands becomes uneven,
There are drawbacks such as poor twisting. Also,
In the case of the flyer guide 4 shown in (b), each carbide tip 3 applies a squeezing action to the linear body, which tends to cause poor twisting and curling of the strands, and the work of passing the wire through the pipe is difficult. It has the disadvantage that it is difficult and the work is complicated.

The present invention was made in order to eliminate the above-mentioned drawbacks, and the guide surfaces of the linear bodies are arranged on the outer periphery of the flyer provided on both sides of the cradle of the bunchier wire twisting machine so that the guide surfaces face each other outward. The guide is a flyer guide formed in an arc shape with a groove on the outside.

An embodiment of the flyer guide of the present invention will be described below with reference to the drawings.

As shown in FIGS. 3A and 3B, the flyer guide 6 has a U-shaped cross section and is curved in an arc so that the U-shaped groove 5 is located on the outside. A mounting portion 7 is provided on the back side of the flyer guide 6 to be attached to a flyer of a bunchier wire twisting machine.

The shape of the groove 5 may be V-shaped as shown in FIG. 4A, or U-shaped as shown in FIG. In addition, it is usually appropriate for the circular arc to be 1/4 circle, but the circular arc is appropriately selected depending on the angle at which the flyer enters the guide inlet and the angle at which it exits from the guide outlet when guided by the linear flyer guide 6. It is something to do.

Furthermore, it is more effective to apply a treatment such as hard chrome plating, tuftride treatment, TiC coating, etc. to the surface of the groove 5 in order to reduce contact resistance with the linear body and improve wear resistance. Next, a bunchier stranding machine using the flyer guide of the present invention will be explained.

As shown in FIG. 1, reference numeral 8 denotes a base of a bunchier wire twisting machine, which supports a flyer 9 rotatably. In addition, 10 is a cradle and a flyer 9,
It is swingably suspended between 9. Furthermore, 11
12 is an over-twist device, 12 is a take-up capstan roller, 13 is a take-up reel, 14 is a collective voice, 15 is an end plate, and 16 is a turn roller, respectively.

In FIG. 1, the hard steel wire 17 passes through the head plate 15, is focused by the collective voice 14, and is guided to the main body of the bunchier stranding machine. The focused hard steel group is twisted by the rotation of the flyer 9 to become a stranded wire 18, but twisting is applied once before entering the main body of the stranding machine and then entering the cradle 10. Sometimes another twist is given. but,
In the case of hard steel wire, the second twist is returned to the entrance side of the wire twisting machine body through the turn roller 16 and the flyer guide 6, so that the second twist is applied from the beginning.

In this way, the twisted hard steel wire group becomes the twisted wire 18 and is guided to the bunchier twisting machine, passes through the turn roller 16 arranged at the axis of the flyer 9, and is formed into a concave part on the outer periphery of the flyer 9. It passes through the concave grooves 5, 5 of the flyer guides 6, 6 provided so that the groove 5 is located on the outside, and is further guided into the cradle 10 through the turn roller 16. Furthermore, an overtwist is applied by the overtwisting device 11, and the twist becomes uniform, so that the take-up reel 1
It is wound up in 3.

Here, if the rotational speed of the flyer 9 is 4000 rpm, the stranded wire 18 is given 8000 twists per minute. Also, the linear speed at this time is 80
m/min.

As mentioned above, since the second twist applied to the plurality of hard steel wires passes through the turn roller 16 and the flyer guide 6, untwisting occurs.
The linear body moves forward in the groove 5 of the flyer guide 6 while being twisted.

Since the fryer guide of the present invention has a circular arc shape with a concave groove, there is no effect of centrifugal force on the linear body generated as the fryer rotates, and there is no straining effect between the linear body and the flyer guide. Rather, the centrifugal force reduces the frictional resistance between the linear body and the flyer guide. Therefore, the untwisting of the stranded wire is performed extremely smoothly, and a stranded wire of good quality without twisting defects or loose twists can be obtained, which is a highly practical idea.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a bunchier stranding machine, Fig. 2 A and B are sectional views of conventional flyer guides, Fig. 3 is an embodiment of the flyer guide of the present invention, and A is a perspective view and Fig. 2 B is a cross-sectional view of a conventional flyer guide. is A-A sectional view, Fig. 4A,
B is a sectional view showing different embodiments of the flyer guide of the present invention. 1...Bearing, 2...Roller guide, 3
...Chip, 4,6...Flyer guide, 5...
Concave groove, 7... Mounting part, 8... Base of bunchier stranding machine, 9... Flyer, 10... Cradle,
11... Over twist device, 12... Take-up capstan roller, 13... Take-up reel,
14...Group voice, 15...Kagami board, 16...
...Turn roller, 17...Hard steel wire, 18...Twisted wire.

Claims (1)

[Scope of utility model registration request] In the flyer guide, which is placed on the outer periphery of the flyer placed on both sides of the cradle of a bunchier wire twisting machine, so that the guide surfaces of the linear bodies face each other outward, a 1/4 circle with a concave groove on the outside is used. A flyer guide for a bunchier wire twisting machine, which is formed into an arc shape and has surface treatments such as hard chrome plating, tuftride treatment, and TiC coating on the surface of the groove.