JP2900933B1 - Braiding device - Google Patents

Abstract

Abstract: When pulling out a wire from a drawing hole of a braiding device and spirally intersecting the outer peripheral surface of a flexible elongated body with a low tension and braiding the wire, the drawn wire loosens, and Improves breakage of wires and defective products due to loosening. The wire braiding device (10) has a center hole,
A fixedly disposed deck plate 14, a pair of first and second annular track grooves 16A and 16B that extend in the circumferential direction of the deck plate 14 while intersecting each other in the shape of figure 8, and the track grooves 16
A, a set of carriers 18A, 1 traveling along 16B
8B, and the carriers 18A, 18B
The wires 65A and 65B drawn out of the flexible elongated body 7
6 and spirally intersect with each other on the outer peripheral surface to form a winding braid. At this time, the wire drawing holes 66 of the carriers 18A and 18B are provided in a fixed state near the center of the deck plate 14 in a direction perpendicular to the carrier traveling direction with respect to the center of the carrier.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braiding device used for manufacturing a hose having a reinforcing layer.

[0002]

2. Description of the Related Art Conventionally, a hose having a reinforcing layer has been manufactured by braiding a wire such as a wire along the outer peripheral surface of a flexible long body. FIG. 6 shows an example of a braid device conventionally used for that purpose. In the figure, reference numeral 200 denotes a disc-shaped deck plate provided at a fixed position. The deck plate 200 has a first raceway groove 202 which forms an annular shape in the circumferential direction of the deck plate 200 as shown in FIG.
A and the second raceway groove 202B are formed so as to penetrate the deck plate 200 in the plate thickness direction. Here, each of the first raceway groove 202A and the second raceway groove 202B has a wavy shape, and intersects each other in a figure eight shape, and
Extending in the circumferential direction.

In FIG. 6A, reference numerals 204A and 204B
Is a first carrier and a second carrier that run along the first raceway groove 202A and the second raceway groove 202B, and each has a foot 206 at a lower portion. Each of the foots 206 is provided with a guide portion 208 whose plane shape is a ship shape (not shown).
Each of the first raceway groove 202A and the second raceway groove 202B is fitted into each of the first raceway groove 202B such that they cannot rotate relative to each other.
The traveling guidance is performed while the direction is regulated by 2B.

That is, a pair of carriers 204A and 204B
Moves around the center of the deck plate 200 (orbital motion) while crossing the deck plate 200 along the first orbit groove 202A and the second orbit groove 202B in the circumferential direction while being restricted in the direction. It is supposed to.

[0005] As shown in FIG.
Below 0, a plurality of disks 214 are continuously provided on the same circumference, specifically, on the same circumference around the center of the deck plate 200, with each rotation center positioned. Each disk 2
14, a plurality of U-shaped cutouts 216 are provided at 90 ° intervals in the circumferential direction as shown in FIG.
The downward engaging pin 218 of the foot 206 at A, 204B is engaged.

[0006] A gear 220 is connected to each of the disks 214 in a state of being integrally rotated at a lower side thereof.
Are synchronously rotated in opposite directions to each other. Along with the rotational movement of the disks 214, a pair of carriers 204A and 204B can be made to orbit around the center of the deck plate 200 in the directions opposite to each other on the first raceway groove 202A and the second raceway groove 202B. ing. In addition, the carrier 204
A and a plurality of sets of carriers 204B are provided.

In FIG. 1A, reference numeral 222 denotes an output shaft of a drive motor. A drive gear 224 is fixed on the output shaft 222, and the drive gear 224 is meshed with any of a plurality of gears 220. That is, the rotational driving force from the driving motor is transmitted to any one of the gears 220 via the driving gear 224, and the driving force is further transmitted to each disk 214 based on the meshing between the gears 220.

Each of the carriers 204A and 204B has a bobbin shaft (not shown). The bobbins 210A and 210B are rotatably fitted to the bobbin shaft, and wires (wires) 212A and 212A from the bobbins 210A and 210B are provided.
212B is drawn out through the drawing holes 226A and 226B (see FIG. 7).

These carriers 204A and 204B are 8
The first raceway groove 20 extending in the circumferential direction while intersecting in the shape of
By pulling out the wires 212A and 212B while reciprocating along the second track groove 202B and the second track groove 202B, the outer peripheral surface of the flexible elongated body relatively moving in the axial direction at the center of the deck plate 200. Wire 212A, 2
12B is spirally wound and braided.

Each time the carriers 204A, 204B pass through the intersection of the first raceway groove 202A and the second raceway groove 202B, their inner and outer positions (inner and outer positions with respect to the center of the deck plate 200) are reversed, whereby the wire 212A,
Braiding is performed while entangled with 212B.

FIG. 7 shows a set of carriers 204A and 204B.
The state of the orbital movement of each of the drawing holes 226A and 226
In the conventional braiding device, as shown in the figure, the drawing holes 226A, 226B advance with respect to the substantially central axis of the carriers 204A, 204B, more specifically, the axial position of the guide portion 208A. The wires 212A and 212B are drawn out from the draw-out holes 226A and 226B toward the flexible elongated body at the center of the deck plate 200 under a predetermined tension in a state where the wires 212A and 226B are positioned forward in the direction.

[0012]

However, in the above-mentioned conventional braiding apparatus, a relatively low tension (for example, 39.10 mm) is required.
When the wire is pulled out under a tension of 2N (40 kgf) to 0.49 (0.5 kgf) and wound and braided on the outer peripheral surface of the flexible long body, the drawn wire 212A,
There is a problem that the slack is easily generated in the wire 212B, and if such a slack is generated, the wires 212A and 212B are not braided well and may be cut without going, leading to a product defect.

[0013]

The invention of the present application has been made to solve such a problem. Thus, the wire braiding apparatus of the present invention comprises (a) a deck plate having a center hole and fixedly arranged, and (b) formed on the deck plate, each of which has a wavy shape and is 8 mm apart from each other. And a pair of first and second annular track grooves extending in the circumferential direction of the deck plate while intersecting in a V-shape, and (c) being relatively non-rotatably fitted into each of the first and second track grooves. A foot having a guide portion guided by the first and second track grooves while being guided while being restricted in its direction, has a bobbin shaft and a lead hole for a wire rod, and is rotatable about the bobbin shaft. A plurality of sets each including a first and a second pair of carriers that run relatively reversely along the first track groove and the second track groove while pulling a wire from the fitted bobbin through the drawing hole. Of the carrier,
(D) a drive device for driving the carriers to travel, and the wire drawn from each carrier as the carriers travel is inserted through the center hole of the deck plate in the axial direction of the deck plate. In a wire braiding device which spirally intersects the outer peripheral surface of a relatively long flexible body which is relatively moved and winds and braids the wire, a drawing hole in the carrier is provided with respect to an axial center position of the guiding portion. It is characterized by being provided in a fixed state at a position near the center of the deck plate in a direction perpendicular to the traveling direction.

[0014]

The present inventor examined the cause of wire loosening and the resulting wire breakage in the above-described conventional braiding apparatus.
The draw-out holes 226A, 226B are provided in a fixed state so as to be always located forward in the traveling direction with respect to the axial center position of the guide portion 208. Therefore, the rotational moment is applied to the carriers 204A, 204B based on the tension of the wires. Acts, and the tension itself of the wire fluctuates irregularly due to rattling inside the raceway groove of the guiding portion of the ship shape, and the carriers 204A and 204B themselves irregularly rotate slightly (rotational motion). Was found to be the cause.

More specifically, when the position of the extraction hole is irregularly changed in the forward and reverse rotation (rotation) directions with respect to the axial center position of the guiding portion, irregular slackness occurs in the wire extracted therefrom. Occurred and this was found to be the cause of the wire breakage.

Here, the braid device of the present invention has a drawer for a wire rod in a carrier provided fixedly near the center of the deck plate in a direction perpendicular to the advancing direction of the carrier with respect to the axial position of the guide portion. In the case of such a braiding device of the present invention, the action of the rotational moment on the carrier based on the tension of the wire equivalent wire, more specifically, the effect of the rotational moment on the drawing hole is suppressed as compared with the conventional braiding device, and as a result, the position of the drawing hole is improper It is prevented that the position is regularly changed in the rotation direction, and the occurrence of irregular slack in the wire wire drawn from the wire is suppressed. Therefore, according to the present invention, it is possible to prevent the occurrence of problems such as wire breakage due to the loosening of the wire,
It is possible to suppress or eliminate the occurrence of product defects caused by the loosening or cutting of the wire.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a braiding device of the present embodiment.
Reference numeral 2 denotes a pedestal in the braid device 10, and 14 denotes a disc-shaped deck plate having a central hole provided on the pedestal 12 at a fixed position. This deck plate 14 has a first raceway groove 16A (see FIG. 4) and a second raceway groove 16B
Are formed to penetrate the deck plate 14 in the plate thickness direction. Here, the first raceway groove 16A and the second raceway groove 16B
, Each have a wavy shape, and extend in the circumferential direction of the deck plate 14 while intersecting each other in a figure eight shape.

In FIG. 2, reference numerals 18A and 18B denote a first carrier and a second carrier which run along the first track groove 16A and the second track groove 16B, respectively.
It has 0. As shown in FIG. 3A, the foot 20 includes a plate-like slide base 22 that slides on the upper surface of the deck plate 14 and has a substantially square planar shape, and a guide portion 26 that projects downward from the center thereof. And deck board 1
4, a back plate 24 that vertically sandwiches the deck plate 14 with a predetermined clearance together with the slide base 22, and an engaging pin 28 that projects downward from the center of the back plate 24. have.

Here, as shown in FIG. 2B, the guiding portion 26 has a symmetrical boat shape in the front-rear direction and at right angles to the traveling direction, and includes the first carrier 18A and the second carrier 1A.
Each guide portion 8B in 8B is fitted into each of the first raceway groove 16A and the second raceway groove 16B so as to be relatively non-rotatable, and is guided while traveling while being restricted in direction by the raceway grooves 16A and 16B.

That is, a pair of carriers 18A and 18B are moved on the deck plate 14 along the first raceway groove 16A and the second raceway groove 16B extending in the circumferential direction while intersecting the figure 8 with each other while the direction is regulated. The orbital motion (orbital motion) around the center and opposite to each other. Deck board 14
Are provided with a plurality of sets of carriers 18A and 18B. On the other hand, the engagement pin 28 has a circular cross-sectional shape, and its axis coincides with the axis P of the guiding portion 26 having a boat shape.

As shown in FIGS. 2 and 4A,
A plurality of disks 30 are arranged below the deck plate 14 on the same circumference, specifically, on the same circumference around the center of the deck plate 14 in such a manner that each rotation center is positioned. As shown in FIG. 4 (A), U
A plurality of notch-shaped notches 32 are provided at 90 ° intervals, and the carriers 18A, 18
B, the engaging pins 28 of the foot 20 are engaged, and the rotational motion of the disk 30 causes each of the engaging pins 2 to move.
8, that is, the carriers 18A and 18B are fed in the rotation direction of the disk 30.

As shown in FIG. 2, a gear 34 is connected to the lower side of each disk 30 so as to rotate integrally with the disks 30. That is, a plurality of gears 34 are continuously provided on the same circumference passing through the center of rotation of each disk 30. In each of the plurality of gears 34, adjacent gears are meshed with each other, and for any of them,
As shown in FIG. 1, a drive gear 40 fixed on an output shaft 38 of the drive motor 36 is engaged with the drive gear 36, and the drive force of the drive motor 36 controls the drive gear 40 and the gears 34 corresponding to the respective disks 30. The rotation is transmitted to each of the plurality of disks 30 via the respective disks, and the disks 30 are rotated in synchronization with each other.

The plurality of disks 30 rotate adjacently to each other due to the engagement of the gears 34. As a result, the pair of carriers 18A and 18B orbit around the outer peripheral portion of the deck plate 14 in opposite directions along the first raceway groove 16A and the second raceway groove 16B, respectively. However, the arrangement of the two notches 32 of the same disk 30 is determined so that each of the pair of carriers 18A and 18B always engages. As is clear from the above description, in this example, the drive motor 36, the drive gear 40, and the gear 3
4, the disk 30 constitutes a driving device for driving the carriers 18A, 18B.

As shown in FIG.
A and 18B are provided with a bobbin shaft 42 which is perpendicular to the deck plate 14, and a bobbin 44 holding a wire is fitted to the bobbin shaft 42 in a state of being integrally rotated with a rotary plate 46. I have.

A plurality of engaging teeth 48 are formed at a predetermined pitch on the outer peripheral portion of the lower surface of the rotating plate 46.
Are designed to engage. An operation rod 54 extends upward from the rear end of the claw member 50, that is, the end opposite to the claw 52, and a block-shaped contact portion 56 is provided at an intermediate position of the operation rod 54 in the vertical direction. It is fixed so as to move up and down together with the rod 54.

A return spring 58 is fitted to the working rod 54, specifically, above the contact portion 56 of the working rod 54, and the return spring 58 constantly urges the working rod 54 downward. Have been. That is, the lever-type claw member 50 is urged in a direction in which the claw 52 at the distal end engages with the engagement teeth 48 on the lower surface of the rotating plate 46.

In the carriers 18A and 18B, the wires 65A and 65B drawn out from the bobbin 44 are fixed to a fixed roller 60 having a fixed position and a movable roller 6 which can move up and down.
2, passes through the inside of the drawer cylinder 64, and is drawn out from the drawer hole 66. Note that the drawer cylinder 64 is provided in a position fixed state by a bracket 68.

In FIG. 3A, reference numeral 70 denotes a tension rod, on which a sliding member 72 holding the movable roller 62 is externally slidable up and down. Here, the sliding member 72 is constantly urged downward by a tension spring 74 fitted to the tension rod 70, and the urging action of the tension spring 74 causes the wires 65 </ b> A and 65 </ b> B to be drawn out of the drawing holes 66. On the other hand, a certain tension is applied.

In this example, the carriers 18A and 18B operate as follows. That is, the wires 65A and 65B held by the bobbin 44 are fixed to the fixed roller 60 and the movable roller 62.
Through the drawing hole 66 of the drawing cylinder 64 and supplied to the flexible elongated body 76 (see FIG. 1). At this time, the sliding member 72 holding the movable roller 62 is connected to the wires 65A and 65A.
In accordance with the magnitude of the tension acting on 5B, the sliding motion is performed up and down along the tension rod 70.

When the tension is to be increased beyond a certain level, the sliding member 72 comes into contact with the contact portion 56 to lift the working rod 54 upward against the urging force of the return spring 58. Then, the claw 52 at the tip of the claw member 50
Are separated from the engaging teeth 48 of the rotating plate 46, where the rotation of the bobbin 44 is allowed, and the rotation of the bobbin 44 supplies the wires 65A and 65B held by this.

Then, the tension of the wires 65A and 65B is reduced, and the sliding member 72 is moved downward by the urging force of the tension spring 74, and at the same time, there is no upward pushing force on the contact portion 56. When the claw 52 at the tip of 50 comes into engagement with the engaging teeth 48 of the rotating plate 46 again by the urging force of the return spring 58, the rotation of the rotating plate 46, that is, the bobbin 44 is stopped, and the bobbin 4
The supply of new wires 65A and 65B from 4 is stopped. Hereinafter, while repeating the same operation, the carriers 18A,
18B continuously supplies the wires 65A and 65B to the flexible elongated body 76 while maintaining the tension at a substantially constant value.

As described above, the carriers 18A, 18B pull out the wires 65A, 65B under a predetermined tension, and intersect with the periphery of the deck plate 14 while intersecting in an eight-shape with the rotation of the disk 30. First track groove 1 extending in the direction
6A, the wire 6 circulates in opposite directions along the second raceway groove 16B, and passes through the center hole of the deck plate 14 and moves in the axial direction thereof along the outer peripheral surface of the flexible elongated body 76.
5A and 65B are spirally wound and braided. In this example, a low tension (for example, 39.2 N (40 kgf) to 0.49 (0 .0 N) is applied to the outer peripheral surface of the flexible elongated body 76 in a state where 5 to 7 stainless wires of 0.25 mmφ are aligned.
Braiding with a tension of 5 kgf). In FIG. 2, reference numeral 78 denotes a guide cylinder, and the flexible elongated body 76 is sent out in the axial direction through the inside thereof.

As shown in FIGS. 1A and 4,
Each time the carriers 18A, 18B pass through the intersection of the first raceway groove 16A and the second raceway groove 16B, their inner and outer positions (inner and outer positions with respect to the center of the deck plate 14) are reversed.
Thus, the wire 65A, 65B is wound around the outer peripheral surface of the flexible long body 76 while being entangled, and braiding is performed.

As shown in FIG. 5, in this embodiment, wires 65A, 65B on carriers 18A, 18B are used.
Is located closer to the center O of the deck plate 14 in the direction perpendicular to the advancing direction of the carriers 18A, 18B with respect to the center of the carriers 18A, 18B, specifically, with respect to the axis P of the guide portion 26. Are located in

Therefore, for the carriers 18A and 18B,
The rotational moment based on the tension of the wires 65A and 65B hardly acts, and therefore, the drawer hole 66 rotates irregularly in both the forward and reverse directions with the backlash of the guide portion 26 inside the raceway grooves 16A and 16B. , Which allows the wire 65
It is possible to solve the problem that the A and 65B are slackened, and the slackness and the resulting wire breakage cause a product defect.

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be applied to the case of braiding a wire other than the above-mentioned wire. It can be configured with various modifications.

[Brief description of the drawings]

FIG. 1 is a view showing a braiding device according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a main part of the braiding device of FIG. 1;

FIG. 3 is a diagram showing the configuration of the carrier in FIGS. 1 and 2 in detail.

FIG. 4 is a diagram showing a movement locus of a carrier in FIGS. 1 to 3 together with a track groove.

FIG. 5 is an explanatory view showing the operation of the device shown in FIGS. 1 to 3 together with the position of a drawing hole.

FIG. 6 is a diagram showing an example of a conventional braid device.

FIG. 7 is an explanatory view of a defect of the braid device of FIG. 6;

DESCRIPTION OF SYMBOLS 10 Braid device 14 Deck plate 16A First track groove 16B Second track groove 18A First carrier 18B Second carrier 20 Foot 26 Induction section 36 Drive motor 42 Bobbin shaft 44 Bobbin 65A, 65B Wire 66 Pull-out hole 76 Flexible long body

Claims (1)

(57) [Claims] 1. A deck plate having a center hole and fixedly arranged, and a deck plate formed in the deck plate, each of which has a wavy shape and intersects each other in a figure eight shape. (C) a first and a second pair of annular raceways extending in the circumferential direction of the deck plate and non-rotatably fitted into each of the first and second raceways; In addition to having a foot provided with a guiding portion guided while traveling while being regulated by the two raceway grooves, a bobbin shaft and a wire hole are provided, and a bobbin shaft is rotatably fitted to the bobbin shaft. (D) a plurality of sets of a first and second pair of carriers which relatively reversely travel along the first and second track grooves while pulling out the wire from the drawing hole; A driving device for driving and driving the carriers; and The wire drawn out from each carrier is spirally intersected with the outer peripheral surface of a flexible elongate body which is inserted into the center hole of the deck plate and relatively moves in the axial direction of the deck plate, and wound and braided. In the wire braiding device, a drawer hole in the carrier is provided in a fixed state at a position closer to the center of the deck plate in a direction perpendicular to the advancing direction of the carrier with respect to the axial position of the guide portion. Braiding equipment.