KR20020046376A - Flyer assembly of a coil winding machine - Google Patents

Abstract

PURPOSE: A flyer assembly of winding machine is provided to enable a flyer assembly to rotate at a high rate by setting up a coil guider longitudinally on an inner wall face of a flyer wheel. CONSTITUTION: A flyer assembly winds a coil(50) around a winding frame(5). A flyer wheel(20) has a profile of a shaft hole through which a fixing shaft unit passes, a flange unit which restricts the shaft hole, a cone unit, and a cylinder unit. A coil guider(30) has a coil guide groove installed longitudinally on one side of an inner wall face of the flyer wheel(20). A balancing bar(40) is adhered longitudinally to another side of the inner wall face of the flyer wheel(20) for being placed opposite to the coil guider(30).

Description

Plier assembly of winding machine {FLYER ASSEMBLY OF A COIL WINDING MACHINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plier assembly of a winding machine in which a coil supplied from the outside is wound on a winding mold in order to form a coil forming a stator such as an electric motor or a generator into a required winding body.

As shown in FIGS. 1A and 1B, the winding machine is rotatably provided with a turn table 3 on which a jig 2 is mounted on a front surface of the bed 1a provided in the main body 1. The main shaft 4 of the biaxial structure is supported on the upper side of the main body 1 so as to be eccentric with the center of the turn table 3. On the fixed shaft portion 4a (see FIG. 2) of the main shaft 4, a winding mold 5 having a predetermined winding end is mounted to be movable in the vertical direction, and the rotating shaft portion 4b of the main shaft 4 ( 2, a plier assembly 6 is wound around the winding mold 5. In addition, one side of the bed (1a) is provided with a gripper (7) for gripping the coil in order to position the coil in the winding mold (5) at the beginning of the coil winding by the pliers assembly (6), On the opposite side is provided a cutter 8 for cutting the coil upon completion of the coil winding by the pliers assembly 6.

As shown in FIG. 2, the pliers assembly 6 includes a plier wheel 11 mounted on the rotary shaft portion 4b of the main shaft 4 and a coil guider mounted on the plier wheel 11 so as to face each other. 12) and a balancing bar 13.

The pliers wheel 11 is formed in a disk shape, as shown in Figure 3a, a plurality of bolt fastening holes (11a) are formed in the upper central portion, the mounting holes (11b) (11c) facing each other It is formed. This pliers wheel 11 penetrates through the plurality of bolt fastening holes 11a formed in the upper center portion thereof, and is rotated by the plurality of bolts fastened to the rotating shaft portion 4b of the main shaft 4 by the rotating shaft portion 4b. ) Is mounted.

The coil guider 12 is fitted into one mounting hole 11b of the plier wheel 11 and is fastened and fixed by bolts. As shown in FIG. 3B, the coil guider 12 has a coil guide groove 12a penetrating downward from the upper side through the inside.

The balancing bar 13 is to maintain the balance of the pliers assembly, is fitted into the other mounting hole (11c) of the pliers wheel 11 is fastened by bolts. This balancing bar 13 is shown in FIG. 3C.

The general winding machine configured as described above has a coil 50 from the coil supply unit 9 (FIG. 1A) to the coil guide groove 12a of the coil guider 12 coupled to one side of the pliers wheel 11 through a predetermined path. Continuously supplied, at this time, the pliers wheel 11 is rotated at high speed so that the coil 50 supplied therefrom is sequentially wound to the winding end of the winding die 5. Such a winding machine can mold a winding body having 2 to 4 steps, which is transferred to a jig 2 mounted on the turn table 3 and then transferred to a next process site, for example a coil insert machine.

However, such a common winding machine, when the coil guider 12 of the pliers assembly 6, which winds the coil around the winding mold 5, is mounted on the disc shaped pliers wheel 11, only the upper end thereof is the pliers wheel 11 Since it is mounted in a state of being supported by being fitted to the mounting hole 11b, the support is weak and the coil guider 12 is deformed due to the centrifugal action during rotation of the pliers assembly, resulting in a winding failure.

The deformation caused by the centrifugal force of the coil guider 12 is more severe as the rotational speed of the pliers assembly increases. In some cases, the coil guider 12 and the balancing bar 13 may be damaged. . For this reason, the rotational speed of the pliers assembly cannot be increased above a certain rotational speed, and thus there is a limit to increasing the productivity.

In addition, as the diameter of the pliers wheel can not be increased for the same reason, the product produced is limited. That is, since the diameter of the plier wheel 11 which greatly affects the centrifugal force cannot be increased due to the deformation and breakage of the coil guider 12 due to the centrifugal force action, there is a problem that only a few products are produced.

The present invention has been made in view of the general problems of the conventional winding machine as described above, and the winding assembly does not deform the coil guider during the winding operation of the pliers assembly of the winding machine that can fundamentally prevent the winding failure caused by the deformation of the coil guider The purpose is to provide.

Another object of the present invention is to provide a pliers assembly of a winding machine that can improve the productivity of the coil guider even when the pliers assembly is rotated at high speed and its diameter is not only deformed, but also the winding bodies of various products can be formed. To provide.

1a and 1b is a front view and a side view showing a common winding machine,

Figure 2 is a detailed cross-sectional view showing the structure of a conventional pliers assembly,

3A, 3B and 3C are views showing a pliers wheel, a coil guider and a balancing bar, respectively, constituting a conventional pliers assembly,

Figure 4 is a detailed cross-sectional view corresponding to Figure 2 showing the pliers assembly of the winding machine according to an embodiment of the present invention,

5a and 5b is a front view and a bottom view showing the structure of the pliers wheel constituting the pliers assembly of the present invention,

Figure 6 is a front view showing a first guide pipe of the coil guider constituting the pliers assembly of the present invention,

7 is a front view showing a second guide pipe of the coil guider constituting the pliers assembly of the present invention, and

8A and 8B are front and side views showing the coil nozzles of the coil guiders constituting the pliers assembly of the present invention.

Explanation of symbols on the main parts of the drawings

4; spindle 4a; fixed shaft

4b; rotary shaft 5; winding frame

20; flywheel 21; shaft

22; flange portion 23; cone portion

24; cylinder 30; coil guider

31; first guide pipe 32; second guide pipe

33; coil nozzle 37; curved guide pipe

40; balancing bar 50; coil

Plier assembly of the winding machine according to the present invention for achieving the above object, a substantially cylindrical pliers wheel mounted to the rotating shaft portion of the winding machine main shaft, and a coil guide groove provided along the longitudinal direction on one side of the inner wall surface of the pliers wheel It has a coil guider having, and a balancing bar attached along the longitudinal direction to the other side of the inner wall surface of the plier wheel so as to be located on the opposite side of the coil guider.

According to a preferred embodiment of the present invention, the plier wheel has a shaft hole through which the fixed shaft portion of the winding machine main shaft penetrates in the upper center thereof, and a flange portion defining the shaft hole and a cone portion inclined downward at a predetermined angle from the flange portion. And a longitudinal shape having a profile of the cylindrical portion extending downward from the cone portion. One side of the flange portion of the plier wheel is provided with an escape groove for avoiding interference with the coil supplied to the flange portion. In addition, a plurality of bolt holes are formed in the flange portion of the plier wheel to which bolts for fastening the plier wheel to the rotating shaft of the main shaft are fastened. In addition, at least one hole is formed in the cylindrical portion of the plier wheel for reducing its weight.

According to a preferred embodiment of the present invention, the coil guider includes: a first guide pipe fixed to an inner wall surface of a conical portion of a plier wheel, a second guide pipe fixed to an inner wall surface of a cylindrical portion of a plier wheel, and a second guide pipe; It consists of a coil nozzle with nozzle holes fixed together and located at the same height as the end of the second guide pipe. The coil guider may further include a curved guide pipe that is fixed and installed to be positioned at a curved portion of the plier wheel between the first guide pipe and the second guide pipe.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a detailed cross-sectional view corresponding to FIG. 2 showing a plier assembly of a winding machine according to an embodiment of the present invention. FIGS. 5A and 5B are front and bottom views showing the structure of a plier wheel constituting the pliers assembly of the present invention. 6 is a front view showing a first guide pipe of the coil guider constituting the pliers assembly of the present invention, FIG. 7 is a front view showing a second guide pipe of the coil guider constituting the plier assembly of the present invention, and 8A and 8B are front and side views showing the coil nozzles of the coil guiders constituting the pliers assembly of the present invention.

As shown in FIG. 4, the pliers assembly of the winding machine according to the embodiment of the present invention includes a substantially cylindrical pliers wheel 20 mounted on the fixed shaft portion 4a of the winding machine main shaft 4, and the pliers wheel ( Coil guider 30 is installed along one longitudinal side of the inner wall surface of 20), and is installed along the longitudinal direction on the other side of the inner wall surface of the pliers wheel 20 so as to be located opposite to the coil guider 30. A balancing bar 40 is provided.

As shown in FIGS. 5A and 5B, the pliers wheel 20 has a shaft hole 21 through which the fixed shaft portion 4a of the main shaft 4 penetrates, and defines the shaft hole 21. It is formed in a longitudinal shape having a profile of the flange portion 22, the cone portion 23 inclined downward from the flange portion 22 and the cylindrical portion 24 extending downward from the cone portion 23. .

The flange portion 22 is formed with a plurality of bolt holes 22a for fastening bolts for mounting the pliers wheel 20 to the rotary shaft portion 4b of the winding machine main shaft 4. As a result, the pliers wheel 20 is detachably coupled to the rotary shaft portion 4b of the main shaft 4 by a plurality of bolts, as shown in FIG. 4. In addition, an escape groove 22b is formed at one side of the flange portion 22 to avoid interference between the flange portion 22 and the supplied coil 50. In addition, at least one hole 24a for reducing the weight is formed in the cylindrical portion 24 of the plier wheel 20. Although the size and shape of this hole 24a are not necessarily limited, as shown in FIG. 5, the shape of a rectangular long hole is preferable, and it is preferable to form about four along the outer peripheral surface of the cylindrical part 24a. The cone 23 and the cylinder 24 are provided with several fixing holes 23c and 24c for fixing the coil guider 30 and the balancing bar 40 which will be described later.

The coil guider 30 has a first guide pipe 31, a second guide pipe 32 and a coil nozzle 33 in the shape as shown in FIGS. 6, 7, 8A and 8B.

The first guide pipe 31 is installed on the inner wall surface of the cone 23 of the pliers wheel 20, the coil guide groove 31a is formed through. As shown in FIG. 4, the first guide pipe 31 is fixed to the inner wall surface of the cone 23 by a bracket 34 fastened through the fixing hole 23c of the cone 23. .

The second guide pipe 32 is installed on the inner wall of the cylindrical portion 24 of the plier wheel 20 in the same line as the first guide pipe 31, and the coil guide groove 32a penetrates therein. Formed. As shown in FIG. 4, the second guide pipe 32 is fixed to the inner wall surface of the cylindrical portion 24 by a bracket 35 fastened through the fixing hole 24c of the cylindrical portion 24. . The lower end of the second guide pipe 32 is coupled with a guide portion 32b having one side curved to facilitate coil supply.

The coil nozzle 33 guides the coil 50 supplied through the second guide pipe 32 to the winding die 5 at the same height as the end of the second guide pipe 32. It has a nozzle hole 33a located. As shown in FIG. 4, the coil nozzle 33 is fixed to and installed on the lower side of the cylindrical portion 24 of the plier wheel 20 together with the second guide pipe 32 by a separate bracket 36. do.

Meanwhile, the coil guider 30 may further include a curved guide pipe 37 positioned at a curved portion of the pliers wheel 20 between the first guide pipe 31 and the second guide pipe 32.

Finally, the balancing bar 40 is to maintain the equilibrium during rotation of the plier wheel 20, as shown in Figure 4, the inner wall surface of the cylindrical portion 24 of the plier wheel 20, more specifically Furnace is installed on the opposite side of the coil guider (30). It is fixedly installed along the longitudinal direction on the inner wall surface of the cylindrical part 24 by several set screws etc. fastened through the fixing hole 24c of the cylindrical part 24.

The pliers assembly of the winding machine according to the present invention configured as described above, as shown in Figure 4, through the plurality of bolt holes 22a formed in the flange portion 22 of the pliers wheel 20, the rotating shaft portion of the main shaft (4) It is attached to the rotating shaft part 4b by the bolt fastened to 4b. The coil 50 supplied from the external coil supply unit may include a first guide pipe 31, a curved guide pipe 37, a second guide pipe 32, and the first guide pipe 31 installed along the longitudinal direction of the inner wall of the plier wheel 20. The coil nozzle 33 is finally supplied to the winding die 5, and the coil is wound on the winding end of the winding die 5 by rotating the pliers assembly at a high speed to form a winding die of a desired shape.

At this time, the coil guider 30 and the balancing bar 40 are subjected to the centrifugal force by the rotational action of the plier assembly, but the coil guider 30 and the balancing bar 40 are formed on the inner wall surface of the longitudinal plier wheel 20. Since the whole surface is provided in the state supported, the coil guider 30 and the balancing bar 40 do not deform | transform or break by centrifugal force like conventionally.

According to the present invention as described above, since the coil guider is installed on the inner wall surface of the plier wheel formed in a substantially cylindrical shape with its entire surface supported, the coil guider is driven by centrifugal force even at high speed rotation or its diameter is large. No deformation or damage occurs.

Therefore, the rotation speed of the pliers assembly can be made faster, so that the productivity can be improved, and since the diameter forming range of the pliers assembly can be widened, the winding bodies of various products can be formed.

On the other hand, while the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the above-described embodiment, the field to which the invention belongs without departing from the spirit of the invention claimed in the claims below. Of course, anyone skilled in the art can make various modifications, as well as such modifications are within the scope of the claims.

Claims (7)

As a coil mounted on the rotating shaft of the winding machine main shaft supplied from the outside to the winding mold mounted on the fixed shaft of the winding machine main shaft, A shaft hole is formed in the upper center, the shaft hole penetrating the fixed shaft portion, and having a flange portion defining the shaft hole, a cone portion inclined downwardly at a predetermined angle from the flange portion, and a profile of the cylinder portion extending downward from the cone portion. Pliers wheel; A coil guider having a coil guide groove installed in one side of an inner wall surface of the plier wheel along a longitudinal direction thereof; And And a balancing bar attached to the inner wall surface of the plier wheel along the longitudinal direction thereof on the other side so as to be located on the opposite side of the coil guider. The method of claim 1, One side of the flange portion of the plier wheel pliers assembly of the winding machine, characterized in that the escape groove is formed to avoid interference with the coil supplied to the flange portion. The method of claim 1, The flange portion of the plier wheel pliers assembly of the winding machine, characterized in that a plurality of bolt holes are formed to fasten the bolt for fixing the pliers wheel to the rotating shaft of the main shaft. The method of claim 1, At least one hole is formed in the cylindrical portion of the plier wheel to reduce its weight. The method of claim 4, wherein 4. The pliers assembly of the winding machine, characterized in that the four holes are arranged and formed at predetermined intervals in the cylindrical portion of the pliers wheel. The method of claim 1, The coil guider may include a first guide pipe fixed to the inner wall of the cone by a bracket; A second guide pipe fixed to the inner wall of the cylindrical portion with a bracket; And And a coil nozzle fixed to the second guide pipe, the coil nozzle having a nozzle hole located at the same height as the end of the second guide pipe. The method of claim 6, The pliers assembly of the winding machine, characterized in that it further comprises a curved guide pipe which is fixed and installed to be located in the curved portion of the pliers wheel between the first guide pipe and the second guide pipe.