JPH07101628A - Method of winding wire rod and its device - Google Patents

Abstract

PURPOSE:To easily materialize a coil product in bundle shape, which is easy of handling on user side and is stable in shape, while downsizing he facility. CONSTITUTION:A center guide 10 for winding, where a delivered wire rod 7 is wound, is attached capably of mounting and removal, to the head of a winding frame 9. A line receiving element 12, which has a plurality of receiving claws 14 for receiving a wound wire material coil 8 with the line receiving parts at the heads and lowering it intermittently at specified pitches, is attached to the winding frame 9. This device is equipped with a rotation drive means, which rotates the center guide 10 for winding at the winding speed synchronized with the delivering speed by rotating a turn table 13, the winding frame 9, the center guide 10 for winding, and the wire receiving element 12 around the vertical shaft, and an ascent and descent drive means, which lifts up and down the wire receiving element 12 and lowers a plurality of receiving claws 14 at specified pitches intermittently.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can form a wire rod having rigidity, for example, a wire rod as a material for manufacturing a spring, into a coil having a good shape without "habit" such as deformation. The present invention relates to a wire winding device.

[0002]

2. Description of the Related Art When processing a wire rod on the user side, for example, a wire rod as a material for manufacturing a spring, the wire rod coil formed in the winding process on the primary manufacturing side has a "habit",
As an example, if there is a state in which the strands of wire are protruding from the bundled coil and distorted, it will not be possible to manufacture a spring that meets the product specifications. Therefore, in the case of wire processing where extremely delicate is required. It is strongly desired to form a coil having a good shape on the primary manufacturing side. Conventionally, a winder of this type is commonly known as an IV (inverted) winder, and the basic structure is schematically shown in FIG.

[0003]

According to the winding method of the winding machine, the capstan 30 for pulling the wire rod is rotated to apply tension to the wire rod to wind the wire rod, and then the capstan 30 is wound. The drop wire is wound around a winding frame 29 which is erected under the. However, according to this method, the elevating type receiving pawls 34 attached to the guides 31 are continuously lowered until the required number of products is obtained while being wound around the capstan 30 for pulling the wire rods, and the inner frames are regulated by the guides 31. The formed wire is stored in a cylinder shape for the length of the strip, and when it becomes the length of the strip, it is dropped onto the winding frame 29 at the lower part of the guide. Therefore, in order to manufacture a wire coil with a long length, A long elevating type receiving claw 34 and a vertically long guide 31 for taking up the wire rod are required, and as a result, there is a disadvantage that the device becomes large. It should be noted that IV without the lifting type receiving claw 34
Although there is also a winding machine, the wire rod wound on the capstan 30 for pulling the wire rod falls freely on the winding frame 29, so that it is difficult to adjust the packing shape and it is impossible to manufacture a bundled coil product having a good shape. There is a drawback that. The present invention has been made to solve such a problem, and an object of the present invention is to provide a stable bundled coil product which is easy to handle on the user side while reducing the equipment size. The point is that it can be easily realized.

[0004]

The present invention has the following constitution in order to achieve the above object. That is, the present invention is a wire rod winding device that winds a wire rod having rigidity fed at a predetermined speed to form a bundle-shaped coil composed of a plurality of wire rod coil units, and is set up on a turntable. A winding frame that rotates around a vertical central axis, a winding center guide that is detachably or removably attached to the head of the winding frame, and around which the unwound wire is wound, and a base. A plurality of receiving members that are supported so as to be able to move up and down in the winding frame and are arranged around the vertical center axis, and that the wire receiving portion at the tip extends outside the winding center guide in the same horizontal plane. The wire catching element consisting of the claws, the turntable, the winding frame, the winding center guide and the wire catching element are integrally rotated around the vertical axis, and the winding center guide is synchronized with the unwinding speed. Rotate at Rotation driving means and lifting and lowering driving means for moving the wire receiving element up and down to intermittently lower the plurality of receiving claws at a predetermined pitch, wherein the winding center guide is larger than the winding frame. A winding part formed in a cylindrical body having a short winding length in the direction of the vertical central axis and on which the wire is wound loosely without applying tension, and between the winding part outer diameter and the winding frame outer diameter. A wire rod winding device, characterized in that it is formed into a cylindrical body having an outer diameter and comprises a guide portion coaxially integrally connected to a lower portion of the winding portion.

The present invention is also a guide member in which the guide portion has a stepwise or stepless decrease in outer diameter from the upper portion to the lower portion on the winding portion side, and the plurality of receiving members that move up and down. The wire winding device is also characterized in that it has a notch for guiding the claw.

[0006]

According to the present invention having the above-mentioned structure, by mounting the winding center guide having the winding portion having a diameter slightly smaller than the finished inner diameter of the wire coil which is the product, the feeding speed and the speed can be synchronized with this speed. Due to the relationship with the winding speed, the wire can be wound into a cylinder while controlling the inner frame so as not to come into close contact with the winding portion of the winding center guide. At the time when a predetermined amount of the wire rod is wound to form the cylindrical wire rod coil unit, the plurality of receiving pawls that are integrally rotating are intermittently moved down at a predetermined pitch. By this descending operation, the wire rod coil unit of the winding portion moves downward and becomes a bundle-shaped coil, which is received by the receiving claws and becomes stable. Although the winding of the wire rod is continuously performed, the wire rod coil unit that stabilizes immediately below the winding center guide acts as a receiving member for the wire rod coil unit to be formed next, so that the wire rod coil unit Winding is done smoothly.

The wire rod coil unit thus wound in a cylindrical shape descends by a length corresponding to the coil shaft length by the receiving claws that are intermittently lowered, so that the wire rod coil unit is slightly eccentric. It becomes a bundle of coils,
By repeating this operation in sequence, it is possible to stack the coils in a bundle and form a coil in a well-shaped bundle around the winding frame. At that time, since the guide portion formed in the tubular body having an outer diameter intermediate between the outer diameter of the winding portion and the outer diameter of the winding frame is coaxially and integrally connected to the lower portion of the winding portion, the wire rod is It corresponds to the difference in diameter and becomes a bundle,
The inner frame is wound around the guide part while being eccentrically formed by centrifugal force, and is smoothly and gently wound around the winding frame while maintaining the shape of this bundle. Therefore, when the wire coil is disengaged from the winding part as in the case where there is no guide part, the wire does not randomly wind around the winding frame due to centrifugal force and the winding shape is not deteriorated. It is possible to maintain a good winding shape while performing.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of a winding line in which an embodiment of the present invention is used, and FIGS. 2 and 3 are a plan view and a front sectional view of a main part of a winding device 2 shown in FIG. The illustrated winding line includes a wire rod feeding means 1 and a winding device 2. The wire rod feeding means 1 is provided in the wire feeding portion of a linear continuous wire drawing machine.
The wire rod feeding means 1 is composed of a base 3, a die box 4 for drawing wire rods and a wire rod feeding block 5 installed on the base 3, and the wire rod feeding block 5 is provided.
Is provided with a touch roller 6 operated by an air cylinder in pressure contact with the wire rod 7 which has passed through the die box 4 and wound around the wire rod feeding block 5 ten times,
The pressure is applied by the touch roller 6 so that the touch roller 6 feeds it toward the winding side at a predetermined speed. The wire rod feeding block 5 may be a rising block of the wire drawing machine.

On the other hand, the winding device 2 includes the turntable 1
3, a winding frame 9, a winding center guide 10,
It is composed of a wire receiving element 12, a rotation driving means, and a lifting driving means. The turntable 13 is rotated by a drive motor 23 via a gear 22.

At the center of the upper surface of the turntable 13, a winding frame 9 is erected coaxially with the turntable 13 and fixed. The winding frame 9 is made of, for example, a thick round steel rod,
4 along the virtual top with a bending process and a welding process
It is formed in a tubular frame body composed of a book pillar and a frame portion 9A having a cross-shaped head portion and a base portion 9B having a four-petal shape.

The winding center guide 10 integrally includes a winding portion 11A and a guide portion 11B, which are vertically connected to each other. The large-diameter short cylindrical portion is used as the winding portion 11A, and the small-diameter short cylindrical portion is used as the guide portion 11B. The winding center guide 10 is fixed to the inner wall of a large-diameter short cylinder.
It is removably and concentrically attached to the head portion of the cylindrical frame body of the winding frame 9 by a pair of fixing guides 17. The winding center guide 10 may be detachably attached, or may be openably and closably attached as shown in FIGS. 6 and 7A to 7C. The winding portion 11A of the winding center guide 10 is attached to the winding frame 9 as shown in FIG.
It is positioned at the same horizontal level as the wire rod feeding block 5. The guide portion 11B is provided with notches 28 for guiding the receiving claws 14 vertically extending so that the four receiving claws 14 described later can be smoothly moved up and down.

On the other hand, the wire receiving element 12 has a ball screw 18
While moving up and down, the receiving claw 14 attached to the tip of the wire receiving element 12 rotates together with the turntable 13. The rotation of the turntable 13 and the rotation of the ball screw 18 are independent from each other via a bearing, and the lifting and rotating motions of the receiving claw 14 can be individually and freely performed.

Next, a method of winding the wire rod 7 using the above embodiment will be described. The winding portion 11A of the winding center guide 10 has a diameter of 380 mm and an axial length of 250 mm.
The cylindrical body of was used. The wire rod 7 made of a steel wire for spring wire having a wire diameter of φ1.6 mm is fed out at a wire drawing speed of 200 m / min from the wire rod feeding block 5 to which the touch roller 6 is pressed. On the winding side, on the other hand, the four receiving claws 14 are held in a state of being raised to a position approaching the lower end of the winding portion 11 at the uppermost position, and the turntable 13 and the winding frame 9 are held.
Then, the winding center guide 10 and the four receiving claws 14 are integrally rotated. In that case, as described above, the speed is adjusted so that the peripheral speed of the winding portion 11A becomes the winding speed synchronized with the wire drawing speed. By doing so, the wire rod 7 whose end is wound around the winding portion 11A
Is loosely wound in tension and therefore
A cylindrical wire coil unit is wound on the circumferential surface of the winding portion 11A.

When the winding is performed for a fixed time or a fixed amount, the receiving claw 14 is lowered by a predetermined pitch. By this descent, the cylindrical wire rod coil unit is almost united and drops onto the lowered receiving claw 14, and at that time, falls around the winding frame 9 via the guide portion 11B as described above. Therefore, the coil is eccentric while being wound around the winding frame 9 while maintaining the shape of the bundle, so that the coil has a good winding shape. As is apparent from the time chart shown in FIG. 5, the receiving claw 14 is intermittently stopped and lowered, and descends at a predetermined pitch. Therefore, as shown in FIGS. 8 and 9. It is possible to form a bundle-shaped coil having a good shape in which a plurality of bundle-shaped wire coil units are overlapped in a pattern-lay shape around the winding frame 9.

In this case, to give concrete numbers, the wire diameter of the wire rod 7 is φ1.6 mm, the wire drawing speed is 200 m / min, the wire rod coil unit inner diameter is φ400 mm, and the winding speed is 200.
/0.4π ≈ 159r.pm, winding center guide 1
0 winding part 11 shape: diameter φ380 mm, axial length 25
Under the condition of 0 mm, it was possible to produce a good bundle-shaped coil in which the bundle-shaped coils were superposed in a pattern-ray shape.

FIG. 4 shows the winding center guide 10 in the winding device 2 according to each embodiment of the present invention. The form of the stepped cylindrical body in the embodiment described above (FIG. 4).
In addition to (a), the guide portion 11B is a tubular body with a plurality of steps, which sequentially becomes a small-diameter tubular portion downward, for example, FIG.
The guide portion 11B having a two-stage structure shown in (B) and the guide portion 11B having a structure as shown in FIG. 4C formed in a stepless tapered cylinder can be adopted. The above two examples are effective when used when there is a considerable difference in diameter between the winding portion 11A and the winding frame 9. The winding portion 11A and the guide portion 11B are, for example, in addition to the guide member shown in the above-described embodiment, a structure in which rods are arranged at regular intervals along the peripheral surface of the virtual cylinder (see FIG. )), Or a cracked tubular structure (see FIG. 4 (e)), etc., which does not necessarily have to be a cylindrical body, and which has other variations as long as it is a winding frame shape capable of winding a wire rod. Of course, it can be adopted.

[0017]

As described above, according to the present invention, in the winding portion of the winding center guide, after a predetermined number of cylindrical wire rod coil units are wound, the receiving claws of the wire receiving element are removed. Since a bundle of wire rod coil units is formed at a position directly below the winding section by lowering it by a predetermined pitch, and this operation is repeated in sequence, a bundle with a good shape without any whiskers or the like. It is possible to obtain the wire rod coil. In addition, since the winding portion winds without applying tension, even in the state of winding a large number of strips, the downward movement is surely performed and the winding shape is stable.

Further, since the bundle-shaped wire rod coil unit located immediately below the winding portion acts to receive the wire rod wound next, a wire rod coil unit having a stable winding shape can be obtained. Further, since the winding center guide has the winding portion and the guide portion having a diameter smaller than that of the winding center guide, when the wire rod cylindrically wound in the winding portion is housed in the winding frame by the lowering of the receiving pawl, the winding center guide becomes large. Rapid fluctuations such as eccentricity can be alleviated, and the coil can be stably wound even at high speed as a clean bundle-shaped coil that does not cause "whiskers".

Further, according to the present invention, the inner cap is regulated by omitting the take-up capstan, which is indispensable in the conventional IV type winder, and by adopting the wind-up center guide having a short axial length. This eliminates the need for a guide having a long axial length, and has an economical effect of further reducing the size and cost of the entire apparatus.

[Brief description of drawings]

FIG. 1 is a front view of a winding line according to an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the winding device 2 shown in FIG.

FIG. 3 is a front sectional view showing a main part of the winding device 2 shown in FIG.

FIG. 4 is a front view of the winding center guide 10 in the winding device according to each embodiment of the present invention.

5 is a time chart of the receiving claw 14 lowering operation pattern of the embodiment shown in FIG. 1. FIG.

FIG. 6 is a front view showing a main part of a winding device 2 according to another embodiment of the present invention.

7 is a perspective view sequentially showing opening / closing operations of the winding center guide 10 in the winding device 2 shown in FIG.

FIG. 8 is a three-dimensional schematic diagram showing a winding state of a bundle coil obtained by carrying out the method of the present invention.

FIG. 9 is a schematic plan view showing a winding state of a bundle coil obtained by carrying out the method of the present invention.

FIG. 10 is a schematic structural diagram of a conventional IV winder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wire feeding means 2 ... Winding device 7 ... Wire rod 8 ... Wire coil 9 ... Winding frame 10 ... Winding center guide 11A ... Winding part 11B ... Guide part 12 ... Wire receiving element 13 ... Turn table 14 ... Receiving claw 18 ... Elevating screw rod 19 ... Supporting cylinder 20 ... Motor 21 ... Speed reducer 18-21 ... Elevating / driving means 22 ... Gear 23 ... Motor 22, 23 ... Rotational driving means 24 ... Guide part 28 ... Notch.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Motonobu Ito 10-1 Nakahama-cho, Amagasaki City Shinko Steel Wire Industrial Co., Ltd.

Claims (2)

[Claims] 1. A wire rod winding device for winding a wire rod having a rigidity fed at a predetermined speed to form a bundle-shaped coil composed of a plurality of wire rod coil units, which is erected on a turntable. And a winding center that rotates around a vertical central axis, a winding center guide that is detachably or removably attached to the head of the winding frame, and around which the unwound wire is wound, and a base. A plurality of receiving claws that are supported so as to be able to move up and down in the frame and are arranged around the vertical central axis, and that the wire receiving portion at the tip extends over the winding center guide in the same horizontal plane. The wire catching element consisting of the turntable, the winding frame, the winding center guide and the wire catching element are integrally rotated around the vertical axis, and the winding center guide is wound at a winding speed synchronized with the feeding speed. Rotate The winding center guide has a diameter larger than that of the winding frame, and includes a rotation driving means and a lifting driving means for moving the wire receiving element up and down to intermittently lower the plurality of receiving claws at a predetermined pitch. And a winding portion formed into a tubular body having a short winding length in the vertical center axis direction and in which the wire rod is loosely wound without applying tension, and an outer middle portion between the winding portion outer diameter and the winding frame outer diameter. A winding device for a wire rod, comprising: a tubular member having a diameter, and a guide portion coaxially integrally connected to a lower portion of the winding portion. 2. The guide member is a guide member that reduces the outer diameter stepwise or steplessly from the upper part on the winding part side to the lower part, and guides the plurality of receiving claws that move up and down. The winding device for a wire according to claim 1, wherein the winding device has a notch for cutting.