JP3458289B2 - Electronic component element manufacturing method and device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an element manufacturing technique for a film capacitor element, an LC or CR composite part including the same, and an electronic part which can be formed in the same manner.

[0002]

BACKGROUND OF THE INVENTION As is well known, many electronic components have recently become
Various improvements have been made, including the adoption of new materials, and performance is improving day by day. Furthermore, higher performance and lower cost are desired.

Of course, the technical field of film capacitors is no exception, and a new manufacturing method is required to meet the above requirements.

By the way, when the elements of the film capacitor are viewed from the structure, there are a winding type and a laminated type, and the manufacturing methods are greatly different. That is, in the case of the winding type, the film and the pair of metal foils or the pair of metallized films are wound around a thin winding core one element at a time, whereas in the case of the laminated type, the pair of metallized films are formed into a large-diameter drum. The unit element is formed by winding it up and then cutting it into small pieces. However, in the case of forming each element, thin films and foils were wound around conventional cores or drums, whereas recently, new methods were developed and wide metalized films were used. There is also a method of winding a plurality of elements on one winding core at a time while cutting them into thin pieces, which has been very effective for improving mass productivity.

However, most of the capacitor elements using the metallized film need to be staggered as shown in FIG. 8 in order to form external electrodes. In order not to contact adjacent elements b,
There is a problem that j must be opened appropriately between the elements b and b.

Therefore, in order to deal with such a problem, as shown in Japanese Utility Model Laid-Open No. 56-15051, a part of a wide metallized film sent out from a supply section is fixed by a cutter with a constant width. Then, a large number of elements b were wound around one core a by opening j between the elements b and the elements b.

However, in this way, j between element b
To remove a portion of the metallized film to open the
In advance, a wide metalized film had to be prepared in anticipation of that portion, and the portion to be removed was wasted.

Therefore, a device as shown in FIGS. 9 and 10 has been considered as a device A for winding a large number of elements on a single winding core at the same time, without wasting the space, and by opening the elements. (Kaisho 59-14632).

This apparatus A separates a metalized film d fed from a film supply section c into a cutter e for cutting the metalized film d in the longitudinal direction and a metalized film d cut by the cutter e so as to leave a predetermined gap. And a vertical guide roller group f for The metallized film d cut by the cutter e to a predetermined width in the longitudinal direction is
The vertical guide roller group f causes the vehicle to stand once in a vertical state and run vertically. Each separated metallized film d'is then guided by vertical guide rollers g, h which are spaced wider than their respective width dimensions. Therefore, when returned to the original horizontal state, a gap is formed between the metallized films d ′, and a plurality of elements b can be wound around one winding core i at the same time.

When the element b is formed by such a method, the metallized film d has an advantage that it can be wound up without waste.

[0011]

However, the metallized film d is liable to wrinkle because the metallized film d is tilted sideways, returned to the original position and tilted by tilting the metallized film d 90 degrees left and right. In addition, since a sufficient space is required to prevent this, the size of the device tends to increase.

[0012]

SUMMARY OF THE INVENTION Therefore, the present invention has been made in view of the above problems, and provides an electronic component element manufacturing method and apparatus capable of reducing the size of the apparatus without wasting the element material. The purpose is to do.

[0013]

In order to achieve the above object, the present invention is to make a plurality of slits in the longitudinal direction on a strip-shaped element material such as a film or a sheet fed from an appropriate supply section, and then to cut the plurality of strips. The cut strip-shaped element material is separately engaged with the respective engaging members of the moving means having a plurality of strip-shaped body engaging elements having different inclination angles, and then the moved band-shaped element material is wound on the same winding core. .

[0014]

According to the method as described above, the strip-shaped element material having a constant width is first divided (slit) by the cutter. The divided strip-shaped element materials are hooked on the engaging elements such as round bar-shaped rollers having different inclination angles, so that when winding many elements at one time on one winding core, there is a suitable gap between the elements. You can open a gap. In addition, the degree of the gap between the elements increases in proportion to the size of the inclination angle of the engaging element and the deviation of the band-shaped element material. Therefore, an arbitrary gap can be obtained by changing the inclination angle.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> Here, the present invention is applied to a manufacturing technique of a film capacitor (hereinafter, simply referred to as a capacitor).

FIG. 1 schematically shows an element winding device B in a capacitor manufacturing system. This apparatus B is provided with a cutter 4 and a moving means 5 between a pair of film supply parts (rolls) 2 for feeding a wide metallized film 1 and a winding core 3 for winding these films 1 respectively. There is.

The metallized film 1 to be used is a plastic film made of PET, PPS or the like, on which a metal made of aluminum or zinc is vapor-deposited, and a cutter 4 is used.
The non-evaporated portion 9 is formed in advance in the portion to be slit.

In the film supply section 2, the reel 7 is engaged with the rotating shafts 6 provided at the left and right of the apparatus B or at the upper and lower positions as shown in FIG. A wide metalized film 1 as shown in FIG. 2 is wound around the reel 7.

As shown in FIG. 3, the winding core 3 has such a length that a plurality of elements 22 can be wound at the same time, that is, the required length and thickness according to the element width and the number of windings. Use one. In the case of a laminated type, a drum type or a flat type is used.

The cutter 4 is made of an extremely thin material such as steel or ceramic, and is used for the film supply section 2
And the moving means 5. Each blade of the cutter 4 is fixed on the setting roller 8 so that the metallized film 1 can be continuously cut vertically when the metallized film 1 passes over the roller 8.

In this case, as shown in FIG. 2, the cut portion 23 of the metallized film 1 is set in the non-deposition portion 9, but the present invention is not limited to this, and the metal deposition portion 24 close to the non-deposition portion 9 is used. It may be.

As shown in FIG. 1, the moving means 5 is provided for each film supply section 2 so that the non-vapor deposition section 9 of the film 1 is symmetrical. Each moving means 5 has a pair of upper and lower (two) round bar-shaped rollers 10 and 11 as a set, and the number of rollers corresponding to the number of divisions of the metallized film 1 can be adjusted so that the inclination angle can be changed. It is projected from the 12 side. In this case, as shown in FIG. 3, the rollers 10 and 11 for engaging the film near the substrate 12 are not inclined (the substrate 1
(Vertical to 2), and three sets are arranged in parallel so that the inclination angle increases sequentially in the horizontal direction with reference to this.

The difference in the inclination angle is proportional to the distance between the winding elements. That is, as shown in FIG. 4, the entanglement angle θ when the film 1 is hooked on the rollers 13 and 14 matches the inclination angle φ of the rollers. Using this, for example, when the second rollers 13 and 14 are tilted at 20 degrees and the third rollers 15 and 16 are tilted at 30 degrees and set, the metallized film 1 is wound due to the difference in angle. As shown in FIG. 3, a large number of elements 22 can be formed at once on the winding core 3 without contacting each other.

Note that, as shown in FIG. 5, each roller may be inclined in the vertical direction, and in this case as well, the same operational effect is obtained.

The element 22 formed in this manner can be a lead type or surface mount type film capacitor by performing metal spraying on the winding end surface to provide an external electrode or by further coating.

<Embodiment 2> In Embodiment 1, the metallized film 1 provided with a non-deposited portion (margin) in advance was used, but here, the metallized film having no non-deposited portion is used. The case will be described. Device B
Basically, as in the first embodiment, the cutter 4 and the moving means are provided between the pair of film supply portions 2 for feeding the metallized film 1 having a wide width and the winding core 3 for winding the metallized film 1. And 5 are provided.

Further, as shown in FIG. 6, a dismetering means 17 such as a laser device is provided between the cutter 4 and the film supplying section 2, and the metalizing film 1 on which the metal film 1 is running is divided. It is also possible to irradiate laser light or the like.

By such a dismetering means 17,
The metallized film 1 is divided by slitting a portion of the metallized film 1 where vapor-deposited metal has been removed or in the vicinity thereof with a cutter 4.

After that, as in the first embodiment,
A plurality of elements 22 can be simultaneously formed at intervals according to the inclination angle by passing through the rollers 10, 11 and the like of the moving means 5 for each film divided from a wide one to a narrow one.

<Embodiment 3> In each of the above embodiments, the apparatus B having a pair of film supply units 2 (two locations) has been described, but it is possible to use only one film supply unit (one side) 2 here. The case will be described.

The rollers of the moving means 5 in this case are, as shown in FIG. 7, a pair of rollers 18 (19), whose inclinations are reversed,
A set of 20 (21) is set and a plurality of sets are installed.

For such moving means 5, the cutter 4
When the metallized film 1 sent in parallel after being divided by is engaged with the rollers 18 (19), 20 (21) and the like, since the inclination is reversed, the adjacent films are displaced. Overlap. As a result, one film supply unit 2
Moreover, it is possible to wind a plurality of elements on one winding core 3 at the same time.

In each of the above-mentioned embodiments, the manufacturing method of the film capacitor and the apparatus therefor have been described. However, the present invention is not limited to the above-mentioned embodiments, and a noise filter and a noise filter capable of forming elements by the same method and device as the film capacitor. C
It can also be applied to element manufacturing technology for R or LC composite parts.

In the above embodiment, the metallized film winding technique is mainly used. However, the present invention is not limited to this, and a strip-shaped film may be used instead of the film and can be applied to various winding techniques. Various design changes are possible within the scope of the technical idea described in the claims.

[0036]

As described above, according to the present invention, originally, a wide band-shaped element material is provided with a plurality of engaging elements having different inclination angles after making a plurality of cuts in the vertical direction (longitudinal direction) by a cutter. Since the element material is engaged with each of the engaging elements of the moving means and wound on the same winding core, each divided element material is moved from the original position in proportion to the inclination angle of the engaging element. It shifts. For this reason, when the cuts are made, the element materials that are in contact with each other can pass through the respective engaging elements of the moving means, so that spaces can be provided at predetermined intervals.

Therefore, the gap between the elements wound on the winding core is not cut away from the portion corresponding to the elements, unlike the conventional one, so that the element material can be effectively used without waste. .

Further, unlike the conventional method, the element material fed from the supply section is not twisted by 90 degrees in the lateral direction. Therefore, the element material does not wrinkle, and at the same time, the space is small and the apparatus is small in size. It has the real benefit that it can be commercialized.

Furthermore, since the element materials that are arranged in parallel horizontally can be stacked one above the other, only one element material supply section is required,
It is extremely effective in simplifying the device.

[0040]

[Brief description of drawings]

FIG. 1 is a schematic view of an element winding device in a capacitor manufacturing system according to the present invention.

FIG. 2 is a plan view showing a slitting method of the metallized film.

FIG. 3 is a plan view of the element winding device.

FIG. 4 is a side view showing the principle of the moving means.

FIG. 5 is an enlarged side view showing the moving means.

FIG. 6 is a schematic view of an element winding device according to the second embodiment.

FIG. 7 is a side view of the moving means according to the third embodiment.

FIG. 8 is a cross-sectional view showing a state in which a large number of elements are simultaneously wound on a winding core.

FIG. 9 is a plan view showing a conventional winding device for a capacitor element.

FIG. 10 is a front view of the winding device.

[Explanation of symbols]

1 Metallized film 2 film supply section 3 winding core 4 cutter 5 means of transportation 6 rotation axes 7 reel 8 Cutter setting roller 9 Non-deposition part 10,11 Laura 12 substrates 13 to 16 rollers 17 Dimetary device 18-21 rollers 22 elements 23 cutting part 24 Metal deposition part

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01G 4/00-13/02

Claims (6)

(57) [Claims] 1. A strip-shaped element material such as a film or a sheet fed from an appropriate supply section is provided with a plurality of slits in the longitudinal direction by a cutter, and the strip-shaped element material cut into the plurality of strips is inclined at an inclination angle. Element manufacturing of an electronic component, characterized in that the belt-shaped element material is wound on the same winding core by separately engaging with the respective engaging elements of the moving means provided with a plurality of belt-shaped element engaging elements, which are different from each other. Method. 2. The strip-shaped element material is a film for a film capacitor, or a metal such as aluminum or zinc is vapor-deposited on one side or both sides of the film.
A method for manufacturing an element of the described electronic component. 3. A cutter for making a plurality of cuts in the longitudinal direction of a strip-shaped element material such as a film or a sheet fed from an appropriate supply section, and a moving means for shifting the position of the strip-shaped element material cut into the plurality of strips. And a winding means for winding the moved strip-shaped element material on the same winding core, wherein the moving means is provided with a plurality of strip-shaped body engaging elements having different inclination angles,
An element manufacturing apparatus for electronic parts, characterized in that a band-shaped element material cut for each of these engaging elements is engaged. 4. The belt-shaped body engaging elements are combined in pairs,
4. The device for manufacturing an element of an electronic component according to claim 3, wherein the device is provided according to the number of strips of the strip-shaped element material that are separated. 5. The belt-like body engaging element comprises a round bar-shaped roller capable of varying the inclination angle to a predetermined position in the horizontal direction or the vertical direction, respectively.
An element manufacturing apparatus of the electronic component described. 6. The device for manufacturing an element of an electronic component according to claim 3, wherein the belt-shaped body engaging member has a pair of rollers inclined in opposite directions.