KR930002050B1 - Winding apparatus and its method - Google Patents

Abstract

No content.

Description

Winding device and method

1 is a schematic perspective view in the state in which the chuck of the winding apparatus of the present invention is omitted;

2 is a left side view of the apparatus shown in FIG.

3 is a front view of the clamper portion,

4 is an enlarged cross-sectional view of the wire guide portion,

5 is a front sectional view showing another embodiment of the sleeve,

6 to 13 are explanatory views showing successively each step of the winding method,

14 is a sectional front view of the wire guide portion,

15 is a front view showing another embodiment of the wire guide portion,

16 is a perspective view showing a part of a conventional winding device,

17 is an enlarged front cross-sectional view of the guide nozzle of the apparatus shown in FIG.

18 is a side cross-sectional view showing an enlarged main part of the winding apparatus shown in FIG. 1;

* Explanation of symbols for main parts of the drawings

5: Wire guide part 10: Coil part

12: terminal 16: bobbin

30: guide nozzle 34: guide nozzle front end

40: wire 70: sleeve

72: sleeve hole 74: sleeve front end

80: clamper

The present invention relates to a winding device used in the winding process of the coil portion, such as a high frequency coil, and more particularly to a winding device having a wire guide nozzle and a method for performing the winding operation using the winding device.

Conventional automatic winding machines with guide nozzles have limitations in processing only wires that are at least about 50 to 60 micrometers in diameter.

On the other hand, the diameter of the wire to be processed tends to become thinner and thinner in order to cope with the high speed of the winding operation and to meet the characteristic requirements.

Recently, research has been made on the use of extremely thin and thin wires having a diameter of 20 to 40 µm. However, as described below with reference to the drawings, a conventional winding device having a guide nozzle system and a winding method using such a device include a winding using an extremely thin wire having a diameter of 40 μm or less for assembling a coil. There is a difficulty in carrying out the work.

An object of the present invention is to provide a winding device and a winding method capable of satisfactorily winding a wire having a diameter of 40 μm or less.

Another object of the present invention is to provide a winding apparatus and a winding method capable of forming an extremely thin and thin wire having a diameter of 40 μm or less by using a guide nozzle system.

Conventional techniques closely related to the present invention will first be described with reference to FIGS. 16 and 17, and embodiments of the present invention will be described with reference to FIGS. 1 to 15 and 18.

Referring to FIG. 16, there is shown a conventional winding device that includes a coil portion 10 supported by a chuck 20. The coil part 10 is provided with the some terminal 12, and these consist of the base 14 which protrudes outward, and the bobbin 16 fixed to the base 14. As shown in FIG.

In the step of winding the wire 40 to the bobbin 16 of the coil portion 10, in order to wind the end portion further to the terminal 12, the above-mentioned winding apparatus as shown in FIG. Was used.

As shown in more detail in FIG. 17, this conventional apparatus is provided with a guide nozzle 30 having a wire supply hole 32. As shown in FIG.

The inner and outer edges 36 and 38 of the front end 34 of the guide nozzle 30 are rounded so as not to damage the wire 40. Since the wire 40 should be easily guided to a shallow portion such as a portion between two terminals 12 of this kind of guide nozzle 30, an automatic winding device having a miniaturized coil portion is widely used.

Nevertheless, as shown in FIG. 16, when attempting to secure the end of the wire 40, the wire 40 moves sideways at high speed, especially during low speed movement. At the same time as it is pulled, the surface is rubbed intensively and the wire deforms due to the temporarily pulled state.

For this reason, in the case of using an extremely thin and thin wire having a small saddle strength, when the guide nozzle 30 is moved over a large distance, the wire breakage occurs at a portion where the front end of the guide nozzle 30 is bent at an acute angle. It causes problems that occur frequently. Therefore, it is impossible to apply an extremely thin wire having a diameter of 40 μm or less to this kind of conventional winding apparatus.

The present invention is designed to have a winding device and a winding method that satisfactorily forms a winding of an extremely thin and thin wire, and the advantage of the guide nozzle system facilitates guiding the wire to the remaining shallow portions.

1 to 13 and 18 show one embodiment of the present invention, in which parts corresponding to those shown in FIGS. 16 and 17 are given the same reference numerals in these figures, Will be explained in.

Referring to FIGS. 1 and 2, a winding including a base body 1 and a nozzle holder 50 installed on the base body 1 that are movable in the directions of arrows X, Y, and Z in FIG. The device is shown. The body of the air cylinder 2 and the plurality of guide nozzles 30 are provided in the nozzle holder 50. The sleeve 70 of the north water is fixed to the sleeve holder 60 provided to face the nozzle holder 50 so as to correspond to the guide nozzle 30, and the guide nozzles 30 are respectively formed in the holes of the sleeve 70. It is inserted.

The sleeve holder 60 is fixed to the piston 3 of the air cylinder 2 as shown in FIG.

The sleeve holder 60 is moved up and down by the piston 3, and the sleeve 70 fixed to the sleeve holder 60 also moves up and down at the same time.

Then, as shown in FIGS. 1 and 2, the guide nozzle 30 protrudes below the sleeve 70 when the sleeve holder 60 is in the raised position.

On the other hand, as shown in FIG. 18, when the sleeve holder 60 is in the lowered position, the front end (lower end) of the sleeve 70 is lowered below the guide nozzle 30. As shown in FIG. Since the wire guide portion constituting the guide nozzle 30 and the sleeve 70 is fixed to the base body 1, this is parallel to the base body 1, the nozzle holder 50, and the sleeve arcer 60. In FIG. 1, it may move in the direction of the arrow (X, Y, Z).

A plurality of chucks 20 (not shown in Fig. 1 are respectively supporting the coil portions 10 between them.) Moreover, the clamper 80 for supporting the wire 40 therebetween is spaced apart from the coil portions 10. It is located away.

Each clamper 80 is assembled so that it can be moved up and down, and as shown in FIG. 3, the tubular body 82 and the tubular body 82 are provided with sliding pressure elements 84. Since the pressure element 84 is always pressed downward against the tubular body 82 by a spring member (not shown), the clamper 80 is normally closed and the pressure element 84 is air cylinders (not shown). Open only when pushed or heard.

After the wire 40 drawn from the rail (not shown) is guided by the roller 4 and rotated, the hole 32 of the guide nozzle 30 as a result of the end being supported by the clamper 80. Passing through.

4 is an enlarged cross-sectional view of a set of wire guide portions composed of a generally assembled guide nozzle 30 and a sleeve 70. Each sleeve 70 has a hole 72 into which the guide nozzle 30 is inserted and has a substantially cylindrical shape in which the front end 74 is formed in a circular shape. The sleeve 70 moves along the longitudinal direction of the guide nozzles 30 with respect to the guide nozzle 30 in accordance with the movement of the sleeve holder 60 driven by the above-mentioned air cylinder 2.

As described above, the sleeve 70 movement width is the front end 74 of the sleeve from the position indicated by the solid line where the front end 74 of the sleeve retracts (raises) over the front end 34 of the guide nozzle 30. It is defined as the movable range of the front end 74 of the sleeve 70 to the position indicated by the dashed-dotted line which advances (falls) below the front end 34 of this nozzle 30.

The edges 76, 78 at the front end of the sleeve 70 are bent in the same way as the edges 36, 38 at the front end 34 of the guide nozzle.

In addition, the radius of curvature of each curved surface of the edges 76, 78 at the sleeve front end is greater than the radius of curvature of each curved surface of the edges 36, 38 of the guide nozzle.

In the above-mentioned embodiment, the sleeve is inclined at the lower end, while this inclination is not essential. Furthermore, at the front end of the sleeve 70, the edges 76, 78 approach a curved surface that is semicircular in cross section through a conventional curved surface in the above-mentioned embodiment, as shown in FIG. 5. 76 and 78, respectively, may be adopted in a shape such that the front end 74 in a flat form formed with a separate curvature.

The winding forming method using the winding device in the above-mentioned coil portion will be described.

As shown in FIG. 6, the coil portion 10 which is not yet wound is first conveyed to the chuck 20 by the clamper 80 to support the end portion 42 of the wire 40.

At this time, the wire guide portion 5 approaches the clamper 80 away from the chuck 20 along the base body 1. Moreover, the sleeve holder 60 is in the downward position and the front end 74 of the sleeve 70 protrudes below the guide nozzle 30.

Next, as shown in FIG. 7, the above-mentioned wire guide unit 5 moves to the coil portion 10 to raise the sleeve 70, and thus the front end 34 of the guide nozzle 30. It protrudes below the front end of the sleeve 70.

The wire guide portion 5 rotates around the terminal 12 to wind the wire 40 around the base of the predetermined terminal 12.

When the wire 40 finishes winding to the terminal 12, the clamper 80 is lowered as shown in FIG. Therefore, the wire 40 is tense so that the tip 42 is intensively bent and pulled by the thin terminal 12.

The wire 40 is therefore cut at the base of the terminal 12.

The unnecessary end 42 of the wire is removed by the opening of the clamper 80 in a blowing and similar manner.

As shown in FIG. 9, the chuck 20 rotates in turn to wind the wire 40 onto the bobbin 16. At this time, in order to wind the wire 40 in a line-aligned manner to the bobbin l6, the wire guide portion 5 is moved or slightly moved from the bobbin 16 simultaneously with the rotation of the chuck 20 in the left and right directions in the drawing. By fixing the wire guide portion 5 at a remote position, the wire 40 drawn out from the guide nozzle 30 is allowed to be naturally guided by the wire 40 in the bobbin 16.

When the winding to the bobbin 16 is finished, the wire 40 moves to the side of the second terminal located at the rear of the terminal already wound around the wire 40, so that the guide nozzle 30 protrudes, as shown in FIG. The guide nozzle 30 is rotated around the terminal so that the wire 40 is wound around the base.

After the winding of the coil portion 10 is finished in this manner, as shown in FIG. 11, the sleeve 70 is lowered second, so that the front end 74 of the sliver 70 is below the guide nozzle 30. The clamper 80 is opened so as to protrude into the ready state of the winding device.

As shown in FIG. 12, after the wire guide portion 5 actually rotates about 180 ° around the open clamper 80, the clamper 80 is closed.

Moreover, when the clamper 80 is lowered as shown in FIG. 13, the end portion 42 of the wire wound on the terminal 12 is tensioned and cut at the base of the terminal in the same manner as mentioned above. At this time, since the wire 40 is pulled by the distance obtained by the downward movement of the clamper 80 on the side of the wire guide portion 5, there is no possibility that the wire 40 is broken.

Therefore, the coil portion 10 where the winding is made is discharged from the chuck 20 to send the new coil portion 10 to the next step of conveying it to the chuck 20.

The winding device also returns to the position shown in FIG.

Thus, the winding process is continued by repeating the above operation.

As mentioned above, according to the winding method of the present invention, the momentum of the guide nozzle 30 is small, for example, as the wire winding on the bobbin or the terminal is performed with the guide nozzle protruding beyond the sleeve 70. As the movement between the coil portion and the clamper is performed with the front end of the sleeve 70 protruding beyond the guide nozzle 30, the movement of the guide nozzle 30 is large in scope and high speed.

In the above-described embodiment, the guide nozzle 30 and the sleeve 70 each have a curved surface formed at the corner of the front end and the radius of curvature of the curved surface at the corner of the guide nozzle 30 is the corner of the sleeve 70 Is greater than the curvature counterattack of the surface.

Accordingly, the wire drawn out from the wire guide unit 5 is bent in the lateral direction as shown in FIG. 14, and the bending angle of the wire 40 becomes smooth and the area in contact with the front end of the wire guide unit 5 is It grows too.

Therefore, the mold exerted on the bent portion 44 of the wire 40 is dispersed and relaxed.

It should be noted that the present invention is not necessarily a shape in which the radius of curvature of each curved surface at the corners 76, 78 of the sleeve 70 is larger than the radius of curvature of each curved surface of the corners 36, 38 of the guide nozzle 30. be worth.

For example, when the curvature radius of each curved surface of the guide nozzles 36 and 38 and the curved surface of each curved corner 76 and 78 are the same as each other, as shown in FIG. 15, the sleeve ( When 70) employs a device that slightly protrudes from the guide nozzle 30, the bending angle of the wire 40 becomes gentle, resulting in more difficult wire breaking than when the winding is performed singly with the guide nozzle 30 alone. Bring it.

According to the winding apparatus and the winding method of the present invention, since the wire is not likely to be bent at an acute angle at the front end of the wire guide portion when the wire is guided at high speed, excessive tension is prevented from being applied to the wire.

Therefore, the winding process in which the wire breaks less is performed even when using extremely thin and thin wire.

Furthermore, by installing a plurality of guide nozzles and sleeves in a pair of nozzle guides and oppositely arranged sleeve holders, it is possible to adopt a system for simultaneously winding a plurality of coil parts.

More advantages are as follows. The guide nozzle is thin or thin, so the tip is about 0.8 mm in diameter and requires precise processing.

Therefore, parts can be said to be expensive and easy to deform,

However, when employing the device of the present invention, such a guide nozzle is preferably protected by the fact that it is covered with a thick sleeve.

Claims (4)

In the winding device with a guide nozzle 30 having a hole 32 for supplying a wire 40, the winding device is composed of a wire guide part 5 in parallel with the guide nozzle 30 and the guide nozzle ( 30) a cylindrical sleeve 70 having an insertion hole 72 and having an annular portion at the front end, and at the first position behind the front end 34 of the guide nozzle 30 of the guide nozzle 30; And a member for movably supporting the front end 74 of the sleeve 70 to a second position forward of the front end 34, wherein the hole 32 for wire supply of the guide nozzle 30 is provided. When the wire 40 pulled through is forcibly bent from the front end of the wire guide portion 5 to the side, when the front end 74 of the sleeve 70 is in the second position, the bent wire ( The radius of the arc drawn by 40 is the sleeve 70. The winding device, characterized in that said front end (74) is further set to be larger than when in the first position. 2. A curved surface according to claim 1, wherein a curved surface is formed at the edges (36, 38, 76, 78) of each of the front ends (34, 74) of the sleeve (70) and the guide nozzle (30). The radius of curvature of the curved surface of the winding device characterized in that it is set larger than the radius of curvature of the curved surface of the guide nozzle (30). The method of claim 1, wherein a pair of nozzle holder 50 and the sleeve holder 60 is disposed opposite, the body and the plurality of guide nozzles 30 of the air cylinder (2) is the nozzle holder ( 50, the piston 3 of the air cylinder 2 and the plurality of sleeves 70 are installed in the holder 60, and the corresponding guide nozzles 30 are formed in the respective sleeves ( Winding device, characterized in that inserted in 70). In the method of winding the coil portion 10 having the bobbin 16 and the terminal 12 by using the winding device set forth in claim 1, the clampable portion of the wire 10 supported between the clamper portions ( 80 is provided at a position spaced apart from the coil portion 10, and the sleeve 70 in which the bobbin 16 and the wire 40 winding to the terminal 12 are supported at the first position. And the wire guide portion 5 movement between the coil portion 10 and the clamper 80 is performed at the front end 74 of the sleeve 70 supported at the second position. Winding method characterized in that performed by (74).

Images