JPH0730715Y2 - Strand twisting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a strand twisting device for manufacturing a fiber rope.

[Conventional technology and its technical problem]

A fiber rope is produced by subjecting a yarn to a predetermined twist and forming a strand, and then applying a twist while collecting a plurality of the strands. The lower twist and the upper twist often have different twist directions, and the twist of the strand inevitably comes out to some extent when the upper twist is applied. The strand twisting process is very important because the number of twists in the upper and lower strands and their balance greatly affect the strength of the fiber rope, the twisted shape, and the quality of the appearance. As a countermeasure against this, an adjusting device for applying additional twist to the closer may be provided, but this has the disadvantage that the mechanism becomes complicated and the efficiency decreases because the rotation speed of the closer decreases.

Therefore, in Japanese Utility Model Publication No. 50-46025, a rear-stage flyer that is directly connected to the front-stage flyer and rotates at a speed of a predetermined ratio is provided, and it is possible to perform additional lower-twisting on a strand of prescribed lower-twisting in the same strander. Strand twisting devices have been proposed.

By the way, the strands twisted by the strand twisting device are wound around the bobbin in the subsequent flyer. In this case, the strands need to be evenly wound by a traverser moving in the longitudinal direction of the bobbin. However, in the prior art strand twisting device, the bobbin installed in the rear flyer is directly connected to the shaft that operates independently of the rotation of the flyer, and the rotation of the drive shaft for driving the rear flyer is controlled by a series of transmission gears. Can be changed to a reciprocating motion of
The bobbin directly connected to the shaft was reciprocally moved in the longitudinal direction of the flyer.

Therefore, the speed of the reciprocating motion of the traverser is simply synchronized with the rotational speed of the fryer, and the traverser moves fast when the rotational speed of the fryer is fast, and the traversing motion also slows when the rotational speed of the fryer is low. As a result, when the flyer is spinning at a constant speed, that is,
When the strands are twisted at a constant speed, the movement of the traverser also becomes constant.

For this reason, if the strands are wound near the barrel of the bobbin and adjusted so that the strands are aligned, the strands will be wound at a rough pitch as they move away from the barrel,
On the contrary, if it is adjusted so that it is wound in a line at a position away from the body, the strands will compete with each other near the body and be wound into a dumpling.

As a result, the strands lose their shape, and in the next step, when the closer, especially the bobbin is installed in the vertical direction and twisted to form a fiber rope, it is not pulled out smoothly due to the poor alignment of the strands, resulting in uneven tension balance. Thus, for example, one strand is stretched and the other strands are loosened, and there is a problem that a fiber rope having a symmetrically neat and perfectly shaped specific strength and good strength utilization cannot be twisted.

[Means for Solving the Problems]

The present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to make this type of strand twist formation capable of neatly align-winding the additional twisted strands derived from the post-stage flyer. To provide a device.

In order to achieve the above object, the present invention has a front flyer for subjecting a plurality of yarns to prescribed twist and a rear flyer for subjecting a strand derived therefrom to additional twist in series,
In the one in which the take-up bobbin for winding the strands having the additional twist is supported on the rear flyer, and the bobbin support shaft is reciprocally moved in the trunk length direction by an external traverser mechanism. The rotation speed of the gear is adjusted by a continuously variable transmission, while a differential mechanism equipped with an actuating output shaft for transmitting power to the traverser mechanism is provided externally, and the main transmission fixed to the shaft of the rear flyer. The car is provided with a flyer rotary take-out wheel coaxially with it, and a bobbin rotary take-out wheel is coaxially provided with the brake car on the traverse hollow shaft fitted so as to be rotatable relative to the bobbin support shaft and slidable in the axial direction. The flyer rotary take-off wheel and the bobbin rotary take-out wheel are connected to each other so that the rotation is transmitted and received by the differential mechanism. The traverser mechanism is moved by the difference.

〔Example〕

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

FIG. 1 shows an embodiment of a strand twisting device according to the present invention, and FIG. 2 shows a power transmission system.

1 is a front stage flyer, 2 is a rear stage flyer, 3 is a traverser mechanism, and the front stage flyer 1 is a frame 00 with bearings 101, 10
1 is supported through, the rear flyer 2 is the front flyer 1
Is supported by bearings 102, 102 on the frame 100 adjacent to
The traverser mechanism 3 is provided behind the rear flyer 2.

The front flyer 1 connects the opposing front plate 1a and rear plate 1b to each other by a connecting member 1c.
The front shaft 1a is fixed to the hollow shaft portion of the front plate 1a with a gear wheel 21a 'meshing with the frame-side gear wheel 21b fixed to the outer periphery thereof. The hollow shaft portion has a plurality of yarns A passing through the upstream die 220. The lower twisted tube 1d through which the lower twisted tube 1d is rotatably inserted relative to the hollow shaft portion, and the speed change gear 21b ′ meshes with the speed change gear 21a coaxial with the speed change gear 21b on the outer periphery of the lower twist tube 1d.
Is fixed. A drawer capstan 22 that rotates together with the front plate 1a and rotates about the front plate 1a is attached to the front plate 1a, and the strand A'in which the lower twist is put in the lower twist tube 1d is wound and passed through a guide roller. The hollow shank of the rear plate 1b is guided to the rear flyer 2.

The rear flyer 2 also has a front plate 2a and a rear plate 2b integrated by a connecting member 2c, and a main transmission wheel 6 is fixed to the hollow shaft portion of the rear plate 2b. To the main motor 9. The front plate 2a has a hollow shaft portion from which the lower twisted strand A'is guided. Transmission wheels 50 and 51 are fixed to the hollow shaft portion of the front plate 2a and the rear shaft hollow shaft portion of the front flyer 1, respectively.
0, 51 are connected to the input shaft wheel 52 and the output shaft wheel 53 of the continuously variable transmission 5 provided at the lower portion of the frame 100 via endless transmission elements (chains or timing belts) 54, 55.

The continuously variable transmission 5 comprises, for example, a continuously variable transmission having a pulse motor 5a having a gear shift range of 3 to 1/3, and an electric circuit of the pulse motor 5a is required by a setter (not shown) according to the number of lower twists. The additional twisting rotation speed is input in advance, and as shown in FIG. 2, the continuously variable transmission 5 is driven according to the twisting speed detected by the rotation speed detector n ₂ of the front stage flyer rotation speed detector n ₁ and the rotation speed detector n ₂ of the rear stage flyer 2. The gear ratio is changed to adjust the output side rotation speed.

A pedestal 23 is fixed to the central portion of the front plate 2a of the rear flyer 2, and a front end of a bobbin supporting shaft 11 extending through the rear plate 2b is supported by the pedestal 23 in a removable manner. A winding bobbin 10 is fitted onto the bobbin supporting shaft 11 so as to be rotatable relative to the bobbin supporting shaft 11, and the winding bobbin 10 is fitted to the bobbin supporting shaft 11 at the front end of a traverse hollow shaft 14 extending through the rear plate 2b. It is fixed.

The traverse hollow shaft 14 is fitted so as to be rotatable relative to the bobbin supporting shaft 11 and slidable in the axial direction.
A brake wheel 12 for applying a tension necessary for winding the strand is attached to the outer periphery of 14 by a key so as to be relatively immovable only in the axial direction, and the shaft portion of the brake wheel 12 is supported by a frame by a bearing 103. There is. The brake vehicle 12 is optional, but is a belt type in the embodiment.

The traverse hollow shaft 14 behind the brake vehicle 12 is supported by a traverse arm 17 which also serves as a bearing.
A female screw cylinder 17a at the bottom of 17 is screwed onto a cross screw type traverse shaft 19 supported by bearings in parallel with the hollow shaft 14.

A transmission gear mechanism 37 is provided at the outer end of the traverse shaft 19, and an input shaft 36 of the transmission gear mechanism 37 is connected to the main input shaft 35 via a transmission element 36 '. A flyer rotary take-out wheel 7 such as a spcket or a pulley is fixed coaxially with the main transmission wheel 6, while a bobbin rotary take-out wheel 13 is fixed coaxially with the brake vehicle 12 and these flyer rotary take-out wheels are fixed. The rotation of the bobbin rotary take-out wheel 13 and the bobbin 7 is transmitted and received by a differential mechanism 18 installed at the bottom of the frame.

As shown in detail in FIG. 1a, the differential mechanism 18 includes two casings, each of which has a casing 31 rotatably supported by bearings and bevel gears 32a, 33a opposed to each other on the axis line in the casing. Shafts 32, 33 and bevel gears 32a, 33a mesh with, intermediate bevel gear 31a attached to the casing 31 with a support shaft 31b, bevel gears 32a, 33a and intermediate bevel gear 31a mesh with each other However, it is designed to rotate as a whole.

An input wheel 38 connected to the flyer rotary take-out wheel 7 and the endless transmission element 15 is fixed to the casing 31, while a bobbin rotary take-out wheel is provided to the left differential output shaft 33.
An input wheel 33b connected to the endless transmission element 16 with 13 is fixed. Further, an output wheel 32b is fixed to the differential output shaft 32 on the right side, and the output wheel 32b is fixed to the drive shaft 35.
It is tied with 4.

In the other drawings, 390 is a shaft stopper provided on the bearing 39 of the bobbin supporting shaft 11, which escapes to the side when the winding bobbin 11 is replaced and allows the bobbin supporting shaft 11 to move in the axial direction.

[Operation of Example]

 Next, the usage and operation of the device of the present invention will be described.

When the strands are twisted, the bobbin support shaft 11 is moved to the left by escaping the shaft stopper 390, and the bobbin support shaft 11 is fitted with the take-up bobbin 10 by pulling the bobbin support shaft 11 out of the mount 23 by an appropriate length. In this state, the front end of the traverse hollow shaft 14 is connected to the left end side of the winding bobbin 10 with a bolt or the like. Then, the bobbin supporting shaft 11 is moved forward to be supported by the mount 23.

When the main motor 9 is driven, the main transmission wheel 6 rotates via the V belt 8. The main transmission vehicle 6 is the rear plate of the rear flyer 2.
Since it is fixed to the shaft portion provided in 2b, the rear flyer 2 rotates around the horizontal axis while being supported by the bearings 102, 102, and the bobbin support shaft 11 also rotates via the bearing 39 at the rear end. The rotation of the rear flyer 2 is input to the continuously variable transmission 5 from the transmission wheel 50 fixed to the shaft portion of the front plate 2a via the endless transmission element 54 and the input shaft wheel 52. The output of the continuously variable transmission 5 is transmitted to the transmission wheel 51 of the front flyer 1 via the output shaft wheel 53 and the endless transmission element 55, whereby the transmission wheel 51 of the front flyer 1 is rotated at a predetermined decelerated speed. Rotate. The rotation of the front flyer is caused by the transmission gear 21a ′ of the front plate 1a.
→ Transmission gears 21a, 21b → Transmitted to the transmission gears 21b ', and the lower twisted tube 1d is rotated at a rotational speed different from that of the front flyer 1.

A plurality of yarns A are collected from the matcher ring into a die 220, passed from the die 220 through the lower twisted tube 1d and drawn out through the capstan 22, and in the meantime, the rotational speed of the lower twisted tube 1d and the front flyer 1 Transmission gear 21a ′,
With the pitch adjusted by 21a, 21b, 21b ', the lower twist is inserted with the specified number of twists. The twisted strand A'is introduced into the rear flyer 2 after passing through the hole in the rear plate 1b of the front flyer 1, but the number of twists is determined by the front flyer rotation speed detector n ₁ and the rear flyer rotation speed detector n _2. Is detected and the gear ratio signal corresponding to the proper added twist number signal is given from the pulse motor 5a to the continuously variable transmission 5 in accordance with the twist number,
The rear flyer 2 is automatically rotated at the optimum gear ratio, and the lower twisted strand A ′ becomes the additional twisted strand A and reaches the winding bobbin 10.

Since the traverse hollow shaft 14 fixing the take-up bobbin 10 is in contact with the bobbin support shaft 11, the traverse hollow shaft 14 also rotates with the rotation of the bobbin support shaft 11, but the traverse hollow shaft 14 is a brake vehicle. Since it has 12 and is appropriately braked by a belt or the like, the winding bobbin 10 also rotates at an appropriately slower rotation speed than the rear flyer 2, and the additional twisted strand A begins to be wound on the winding bobbin 10 in a tension state. .

The rotation of the main transmission wheel 6, that is, the rotation of the rear flyer 2 is performed by the input vehicle fixed to the casing 31 of the differential gear 18 from the bobbin rotary take-out wheel 7 fixed coaxially with the main transmission wheel 6.
38 is transmitted via the endless transmission element 15. In contrast,
The rotation of the traverse hollow shaft 14, that is, the rotation of the winding bobbin 10 is transmitted to the endless transmission element 16-the input wheel 33b-the differential output shaft 33-the bevel gear 33a.

On the other hand, in the casing 31, a bevel gear 32a for the traverse hollow shaft 14 is provided in an intermediate bevel gear 31a in a relationship facing the bevel gear 33b.
The output wheel 32b is provided on the differential output shaft 32 of the bevel gear 32a, the rotation of which is transmitted by the endless transmission element 34-.
It is adapted to be transmitted to the traverse shaft 19 via the transmission wheel 35a, the main input shaft 35, the transmission element 36 ', the input shaft 36, and the speed change gear mechanism 37.

Therefore, when the rear flyer 2 rotates as described above,
This rotation is transmitted to the input wheel 38 of the casing 31 of the differential gear 18, and the rotation of the winding bobbin 10 is transmitted to the bevel gear 33a of the differential output shaft 33 as described above.

Therefore, when there is no speed difference between the rear flyer 2 and the winding bobbin 10, the intermediate bevel gear 31a does not rotate itself,
The casing 31 and the support shaft are rotated together with the casing 31. Therefore, the other bevel gear 32a meshing with the intermediate bevel gear 31a is also rotated at a high speed, and the output wheel 3 of the differential output shaft 32 is rotated.
The rotation of 2b is transmitted to the traverse shaft 19 via the endless transmission element 34 or the speed change gear mechanism 37, and the traverse arm 7 screwed to the traverse shaft 19 via the female screw cylinder 17a moves,
The traverse hollow shaft 14 and thus the winding bobbin 10 moves in the axial direction at a high speed.

However, in the twisting device, the rotation of the rear flyer 2 is constant, for example, 600r at a rope pitch of 15 mm.
pm, the rotation of the winding bobbin 10 is slower than the rotation speed of the rear flyer 2 and corresponds to the circumferential length.
The winding start is, for example, 571 rpm, and the winding end is 591 rpm.
Therefore, it is preferable that the traverser moves so as to comply with these relationships.

Since the intermediate bevel gear 31a has a support shaft integrated with the casing 31, it rotates around the horizontal axis together with the casing 31, while the intermediate bevel gear 31b passes from the input wheel 33b through the differential output shaft 33 and the bevel gear 3a.
The rotation speed transmitted to 3a is always lower than that of the casing 31.
Therefore, the intermediate bevel gear 31a has the bevel gear 33a centered on the support shaft.
Will rotate while rolling on the side of the intermediate bevel gear
The difference in rotational speed between 31a and bevel gear 33a is transmitted to the output shaft 32 via the other bevel gear 32a, and the rotation is transmitted from the output wheel 32b to the traverse shaft 19 via the endless transmission element 34 or the speed change gear mechanism 37. To be

That is, for example, the output shaft 32 of the differential device 18 has a slow rotation speed of 29 rpm at the start of bobbin winding and 9 rpm at the end of winding. As a result, the number of revolutions of the traverse shaft 19 also changes to 6.85 rpm at the start of bobbin winding and 2.13 rpm at the end of winding, and the winding bobbin 10 is reciprocated at a speed slower toward the end of winding than at the start of winding.

The present invention does not reciprocate the traverser at a constant speed with a speed change gear, but introduces both rotations of the rear flyer 2 and the take-up bobbin 10 into the differential device 18 as described above, and catches the difference in rotation and gradually increases the difference. It moves the traverse slowly. Therefore, movement of the diameter of the strand can be transmitted to the traverser while the winding bobbin 10 makes only one rotation, and the additional twisted strand A is collected in the winding bobbin 10 in an orderly manner without a rough pitch or a competitive state. can do.

[Effect of device]

According to the present invention described above, the rotation speeds of the front flyer 1 and the rear flyer 2 are adjusted by the continuously variable transmission 5, while the operation output shaft 32 for transmitting power to the traverser mechanism 3 is externally provided. The main transmission wheel 6 fixed to the shaft part of the rear flyer 2 is provided with a flyer rotary take-out wheel 7 coaxially with the differential mechanism 18 provided with, and is rotatable relative to the bobbin supporting shaft 11 in the axial direction. The traverse hollow shaft 14 slidably fitted is provided with a bobbin rotary take-out wheel 13 coaxially with the brake wheel 12, and the flyer rotary take-out wheel 7 and the bobbin rotary take-out wheel 13 are rotated by the differential mechanism 18. Since the traverser mechanism 3 is moved by the difference between the rotation of the rear flyer 2 and the rotation of the take-up bobbin 10, the addition for coping with the twist-out when twisting the rope is performed. Not only can this be done with the same equipment, but the additive-twisted strands derived from the post-stage flyer can always be neatly aligned and wound from near the drum drum to away from the drum drum. It is possible to manufacture a fiber rope having a good shape, a specific strength and a high strength utilization rate by smoothly performing the tension without causing unevenness of tension, and further, for the additional twisting, the front flyer 1 and the rear flyer 2 Since the gear ratio can be automatically and continuously fine-tuned, the excellent effect that the fiber rope with extremely excellent specific strength and strength utilization factor can be produced in combination with the above effect is obtained.

[Brief description of drawings]

FIG. 1 is a longitudinal side view showing an embodiment of a strand twisting device according to the present invention, FIG. 1a is a partially enlarged view thereof, and FIG. 2 is an explanatory view showing its power transmission system. 1 ... Front stage flyer, 2 ... Rear stage flyer, 3 ... Traverser mechanism, 5 ... Continuously variable transmission, 6 ... Main transmission vehicle, 7 ...
… Flyer rotary take-off wheel, 11 …… bobbin support shaft, 13 …… bobbin rotary take-out wheel, 14 …… traverse hollow shaft, 18 …… differential device

Continuation of the front page (72) Inventor Tetsuro Toyokawa, 37, Shimohanoki, Mitani-cho, Gamagori-shi, Aichi (56) References

Claims (1)

[Scope of utility model registration request] 1. A front flyer 1 for subjecting a plurality of yarns A to prescribed twisting and a rear flyer 2 for subjecting a strand A ′ derived therefrom to additional twisting in series, and the latter flyer 2 is subjected to additional twisting. A winding bobbin 10 around which the formed strand A'is wound is supported, and the bobbin supporting shaft 11 is reciprocated in the trunk length direction by an external traverser mechanism 3. The front flyer 1 and the rear flyer 2 are The rotational speed of the transmission is adjusted by the continuously variable transmission 5, while the operation output shaft 32 for transmitting power to the traverser mechanism 3 is externally provided.
The main transmission wheel 6 fixed to the shaft portion of the rear flyer 2 is provided with a flyer rotary take-out wheel 7 coaxially with the differential mechanism 18 having The traverse hollow shaft 14 fitted so as to be slidable in the direction is provided with a bobbin rotary take-out wheel 13 coaxially with the brake wheel 12, and the flyer rotary take-out wheel 7 and the bobbin rotary take-out wheel 13 are rotated by the differential mechanism 18. A strand twisting device, characterized in that the traverser mechanism 3 is moved by a difference between the rotation of the rear flyer 2 and the rotation of the winding bobbin 10 so that the traverser mechanism 3 can be transferred.