JP2001246297A - Coating material applying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating material applying device which improves the spray coating quality without the crowding-out of a coating material from the coating material-applied face of an object to which the material is applied and minimizes the product dimensional failure, and further, upgrades the maintenability of an installation. SOLUTION: This coating material applying device is structured of a coating material tank 1 which has fluted protrusions 2a, 2b, 2c, 4 formed on its inside face and stores the coating material 11, squeezees 6a, 6b, with both ends fabricated like a chevron shape, into which the protrusions 2a, 2b, 2c and the protrusion 4 formed at a coating material transfer block 3 are fitted and which forms the coating material 11 on the protrusions 2a-2c, 4 to a specified shape and an element supply part 18 which presses a capacitor element 12 to the coating material 11 on the protrusion 4. Either of the protrusions 2a, 2b, 2c, 4 moves and the coating material 11 of a specified shape is formed on either of the move protrusions or the protrusion adjacent to such a moved protrusion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint applying apparatus for applying a paint to an outer surface of an electronic component or the like.

[0002]

2. Description of the Related Art A conventional paint application apparatus for electronic parts and the like is disclosed in, for example, Japanese Patent Publication No. 6-14506, and the main configuration and operation of the paint application apparatus are shown in FIGS.

That is, as shown in FIG. 10, a groove 3 having a predetermined width is provided inside a paint tank 31 for storing paint.
2, a scraping blade 3 having a scraping claw 33 arranged on the lower surface with a width corresponding to the width of the groove 32.
4 is scraped into the groove 32 and the claws 33 are inserted and moved forward to scrape the paint to form a paint layer having a uniform thickness.

[0004] Then, as shown in FIG. 11, a predetermined surface of the electronic component 36 is pressed against the paint layer, and a predetermined amount of paint 35 is applied.
Is applied to a predetermined surface of the electronic component 36.

[0005]

However, in the above-mentioned conventional coating device, the coating material 35 having a uniform thickness is continuous in the front-rear direction of the paint tank 31 and presses the electronic component 36. In this case, the paint 3 extends from the lower end of the electronic component 36
5 is applied, and the electronic components 36 coated with the paint 35 are laminated.
This has the problem of easily protruding, causing the coating quality of the electronic component 36 to deteriorate, and causing the product dimensions of the electronic component 36 to be defective.

Further, there has been another problem that the protruding paint 35 adheres to the apparatus and deteriorates the maintainability of the apparatus.

An object of the present invention is to solve the above-mentioned conventional problems by reducing the protrusion of paint from the paint-coated surface of an electronic component, improving coating quality, and reducing defective product dimensions of the electronic component. It is another object of the present invention to provide a paint coating device that improves facility maintenance.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a movable paint tank which stores a paint by providing a plurality of streak-like projections partially movable on an inner surface thereof, One or a plurality of movable squeegees which are disposed with one end fitted therein to form the paint on the protrusions into a predetermined shape, a paint supply unit for supplying the paint to the paint tank, and a coating surface of the object to be coated. A paint application apparatus comprising a movable element supply unit that presses the paint on the projections, wherein a part of the projections moves and forms a paint to be applied on each of the moved projections or on an adjacent projection. This makes it possible to apply a uniform amount of paint to the inside of the paint application surface of the electronic component, and to prevent the paint from protruding from the paint application surface.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that a plurality of streak-like projections, some of which are movable, are provided on the inner surface and a movable paint tank for storing paint is provided. One or a plurality of movable squeegees which are arranged to be fitted at one end and form the paint on the projections into a predetermined shape, a paint supply unit for supplying the paint to the paint tank, and a projection on the coating surface of the object to be coated. A paint supply device comprising a movable element supply unit for pressing the paint on the upper part, wherein a part of the protrusions rises to form a paint to be applied on each of the raised protrusions; Can supply paint to parts,
This has the effect that the paint can be applied to the inside of the paint application surface of the electronic component.

According to a second aspect of the present invention, there is provided the coating material according to the first aspect, wherein a part of the projection is lowered, and the coating material to be applied is formed on each of the projections adjacent to the lowered projection. A device, in addition to the function of claim 1,
Because the projection that supplies paint to the electronic components does not move up and down,
This has the effect of reducing the fluctuation of the paint on the projections.

According to a third aspect of the present invention, there is provided a vertically movable paint transfer block having one end provided with a plurality of projections which are orthogonal to the longitudinal direction of the projections and form a part of the projections at the same pitch. A paint application device according to claim 1, which has an effect that, in addition to the effect described in claim 1, the operation can be systematized and the size can be reduced.

According to a fourth aspect of the present invention, there is provided the paint application apparatus according to the first aspect, wherein a pair of squeegees are arranged in parallel, and a paint supply unit is disposed therebetween. The paint can be precisely formed into the final application shape by twice scraping. By storing the paint scraped by the squeegee between the pair of squeegees or by supplying the paint from the paint supply unit, the paint can be formed between the pair of squeegees. The paint is agitated,
This has the effect that the paint can be supplied onto the projections in a stable amount and state of application.

According to a fifth aspect of the present invention, there is provided the paint application device according to the first aspect, wherein both ends of the squeegee are bent in a rectangular shape.
This has the effect of preventing the paint from protruding from both ends of the squeegee and the paint from the paint tank.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking a solid electrolytic capacitor as an example of an electronic component.

FIG. 1 is a perspective view showing a main part of a paint application apparatus for electronic parts and the like in an embodiment of the present invention, FIG. 2 is a plan view of the paint tank, FIG. 3 is a sectional view, and FIG. FIG. 5 is a plan view of the paint transfer block, FIG. 5 is a front view of the paint transfer block, FIG. 6 is a front view showing the fitting of the paint tank and the squeegee, FIG.
9A to 9C are cross-sectional views showing the same coating state, and FIG.
FIG. 2 is a perspective view of a solid electrolytic capacitor.

As shown in FIG. 9, for example, as shown in FIG. 9, a solid electrolytic capacitor, which is an electronic component, has an insulating material as a constituent member on the inner side of the lower surface of a constituent element 22 of the solid electrolytic capacitor.
It is constituted by applying a paint 21 which is a conductor material, a dielectric material, a magnetic material or a mixture thereof, and laminating a predetermined number of constituent elements 22.

In FIG. 1, reference numeral 1 denotes a paint tank for storing the paint 11 having the same configuration as the paint 21, and has a bucket shape formed by punching out a rectangular parallelepiped made of a metal material or the like.
On the inner bottom surface, a plurality of rectangular cross sections, in this embodiment, two streak-like projections 2a, 2b, 2c are installed in parallel.

As shown in FIGS. 2 and 3, the protrusions 2a, 2b,
2c are individually separated, and the paint tank 1 is movable in the longitudinal direction of the projections 2a, 2b, 2c.

Reference numeral 3 denotes an angle-movable paint transfer block which is made of a metal material and is vertically movable. The shaft 5 for vertically moving is inserted at the upper end, and the projections 2a, 2b, 2 are provided at the lower end.
c, the groove 1 having the same cross-sectional shape as the groove 16 at right angles to the longitudinal direction.
6 can be inserted.

On the upper surface of the lower end of the paint transfer block 3,
As shown in FIGS. 4 and 5, a plurality of protrusions 4 are provided at the same pitch as the protrusions 2a, 2b, and 2c.
Part of the projection 2c is formed.

Opposite pairs of squeegees 6a and 6b are provided on the upper surface side of the paint tank 1. As shown in FIG.
Grooves 17a, 17b are provided in which a, 2b, 2c are fitted while holding a predetermined clearance.

As shown in FIG. 7, the squeegees 6a and 6
The left and right ends of the b are bent into a V-shape in cross section, and the plate 7 is bent so that the front end portions of the bending process face each other.
, And the upper end of each plate 7 is also attached to a bracket 8, which is vertically movable along a shaft 9 inserted through one end of the bracket 8.

Reference numeral 19 denotes a paint supply unit, which is constituted by a syringe 10 disposed between two sets of squeegees 6a and 6b, and is provided in the paint tank 1 so that the paint 11 in the paint tank 1 always has a predetermined amount. The paint 11 is supplied intermittently.

Reference numeral 18 denotes an element supply unit which is disposed above the projection 4 of the paint transfer block 3 and which holds the plurality of capacitor elements 12 which are the constituent elements 22 of the object to be coated. A suction head 13; a block 14 having the suction head 13 attached to one end;
The block 14 is vertically movable along the shaft 15.

Next, the paint application operation will be described. In FIG. 1, a predetermined amount of paint 11 is supplied to a paint tank 1 from a syringe 10, and the paint tank 1 moves in the direction of arrow A (the drive mechanism is not shown). While the paint tank 1 is moving, the squeegee 6
b is lowered (the driving mechanism is not shown), the groove 17b is fitted into the projection 2c, the squeegee 6a is raised (the driving mechanism is not shown), and the groove 17a is the projection 2c.
And the paint 11 moves on the protrusions 2a, 2b, 2c and the protrusion 4 by the side surface in the moving direction of the squeegee 6b and is applied to a predetermined thickness.

Next, the squeegee 6b rises, the squeegee 6a descends, and the groove 17a fits into the projection 2a,
7b is located above the projection 2a. Groove 17a
Is the final application shape of the paint 11, the paint tank 1 moves in the direction of arrow A, and the paint 11 is placed on the protrusions 2a, 2b, 2c and the protrusion 4 as shown in FIG. It is applied in a thick application shape.

The groove 17b has a larger shape than the groove 17a. The groove 17b allows the rough formation of the coating material 11 on the projections 2a, 2b, 2c and the projection 4, and the groove 17a allows the projections 2a, 2 to be formed.
The final finishing of the coating material 11 on the b, 2c and the projections 4 is performed. By applying and forming the coating material 11 in the above two steps, the accuracy of the applied amount of the coating material 11 is improved and stabilized.

Since both ends of the squeegees 6a and 6b are bent in a U-shape, when the paint 11 is scraped, the paint 11 is scraped by the projections 2a, 2b and 2c, and the paint tank 1 is scraped.
It prevents problems such as overflowing from

Now, with the movement of the paint tank 1, the paint transfer block 3 also moves while the lower end is fitted in the groove 16. The paint tank 1 moves in the direction of arrow A, and the paint 11
After being applied in a predetermined coating shape on the projections 4a, 2b, 2c and the projections 4, the paint transfer block 3 is raised as shown in FIG. The applied paint 11 is formed into a plurality of independent solids by the projections 4.

A plurality of suction heads 1 above the projections 4
3, the capacitor element 12 is held, and the block 14 to which the suction head 13 is attached is moved down along the shaft 15 (the driving mechanism is not shown). Paint 11 is applied to the lower surface of capacitor element 12. Note that the holding of the capacitor element 12 in the suction head 13 is performed by vacuum suction, but may be performed by a chuck.

Since the horizontal surface area of the projection 4 is smaller than the lower surface area of the capacitor element 12, the paint 11 is applied to the inside of the lower surface of the capacitor element 12, and the paint 11 is applied from the lower surface of the capacitor element 12. It does not protrude.

The amount of the paint 11 applied to the lower surface of the capacitor element 12 can be adjusted by the size of the groove 17a of the squeegee 6a and the size of the horizontal surface area of the projection 4 in the paint transfer block 3. The application position and the application area of the paint 11 to the paint transfer block 3 can be adjusted by the size of the horizontal surface area of the protrusion 4 in the paint transfer block 3, and the shape of the application of the protrusion 4 is triangular, quadrangular, polygonal, circular, and elliptical. Needless to say, the depth can be changed by providing a further depth.

As described above, an example of the operation in which the paint transfer block 3 moves up after the paint 11 is applied on the protrusions 2a, 2b, 2c and the protrusion 4 in a predetermined coating shape has been described. As shown in (1), the paint transfer block 3 is lowered to lower the protrusions 4, thereby forming the necessary individual paints 11 on the protrusions 2a and 2b, and the capacitor element 12 is lowered to a predetermined position on the lower surface thereof. Since the projections 2a and 2b do not move up and down according to the configuration method, there is little change in the shape of the paint 11 due to vibration or the like during up and down movement, and the paint 11 is applied to the lower surface of the capacitor element 12. The amount can be further stabilized.

[0034]

As described above, according to the paint applying apparatus of the present invention, paint can be supplied to each electronic component, and the paint can be applied to the inside of the lower surface of the electronic component. Eliminate protrusion and improve coating quality,
This has the advantageous effect of reducing product dimensional defects of electronic components and improving facility maintainability.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a main configuration of a paint application device according to an embodiment of the present invention.

FIG. 2 is a plan view of the paint tank.

FIG. 3 is a sectional view of the paint tank.

FIG. 4 is a plan view of the paint transfer block.

FIG. 5 is a front view of the paint transfer block.

FIG. 6 is a front view showing the fitting between the paint tank and the squeegee.

FIG. 7 is a plan view showing attachment of the squeegee.

FIG. 8A is a cross-sectional view illustrating a state of application of a paint on the protrusion. FIG. 8B is a cross-sectional view illustrating a state of application of the paint after the protrusion is raised. Sectional view

FIG. 9 is a perspective view of a solid electrolytic capacitor.

FIG. 10 is a perspective view showing a main part configuration of a conventional paint application device.

FIG. 11 is a main part configuration diagram showing the same operation.

[Explanation of symbols]

 Reference Signs List 1 paint tank 2a, 2b, 2c protrusion 3 paint transfer block 4 protrusion 5 shaft 6a, 6b squeegee 7 plate 8 bracket 9 shaft 10 syringe 11 paint 12 capacitor 12 capacitor element 13 suction head 14 block 15 shaft 16 groove 17a, 17b groove 18 element supply Unit 19 Paint supply unit 21 Paint 22 Constituent element

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Isao Kaneko, Inventor 1006, Kazuma Kadoma, Kazuma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Term (reference) 4F040 AA12 AB04 AC01 BA08 CA02 CA09 CA12 CA17 CA20 5E082 AA01 AB03 AB09 BC38 EE04 EE23 EE29 EE35 FG27 GG10 GG28 MM11 MM13 MM21 MM23

Claims (5)

[Claims] 1. A movable paint tank provided with a plurality of streak-like projections partially movable on an inner surface thereof for storing a paint, and a paint provided on one end of the projection so that the paint on the projection is fixed. One or a plurality of movable squeegees formed in the shape of, a paint supply unit for supplying the paint to the paint tank, and a movable element supply unit for pressing the application surface of the object to be applied to the paint on the protrusions, A paint application device having a configuration in which a part of the projection rises to form a paint to be applied on each raised projection. 2. The coating apparatus according to claim 1, wherein a part of the projection is lowered to form a coating material to be applied on each of the projections adjacent to the lowered projection. 3. The paint transfer block according to claim 1, further comprising a vertically movable paint transfer block having one end provided with a plurality of projections forming a part of the projections at a right angle to the longitudinal direction of the projections and at the same pitch. The coating device according to the above. 4. The paint application device according to claim 1, wherein a pair of squeegees are arranged in parallel, and a paint supply unit is arranged therebetween. 5. The coating apparatus according to claim 1, wherein both ends of the squeegee are bent in a rectangular shape.