JPS6014544Y2 - Painting jig device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coating jig device used for coating a hollow product by immersing it in a paint liquid tank.

When a hollow product is immersed in a paint solution tank and electrocoated to coat only the outer surface of the hollow product, conventional methods have been to cap the opening of the hollow object with a plug made of rubber, etc. After fitting and immersing it in a liquid bath, painting is performed, but there is a risk that the air remaining inside the object to be coated due to changes in processing temperature may cause the expansion waist plug to fall off due to the pressure. The work is troublesome and complicated because the plug is fitted at both ends with forceful pressure, and the removal of the stopper after painting is also troublesome because it is press-fitted, resulting in poor workability.

The present invention was made to improve the above-mentioned problems, and its purpose is to seal the lower end of a hollow object to be coated and support it with a hollow catch, and seal the other end and close it with a closing member. ,
and is supported by a support member by applying pressure in the direction of the catch with a spring,
The residual air inside the object to be coated, which is open downward, is immersed in the paint liquid, and the liquid level is set and maintained below the inner surface of the object, and only the outer surface of the object is coated during dip coating. To provide a painting jig device which can perform such painting reliably and with good workability, and can also perform the painting and drying processes continuously and easily without any trouble, and is highly practical in the painting process. It is on offer.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded longitudinal sectional side view of the device according to the present invention.
is equipped with an arm 2 that is suspended and supported by a hanger, etc., and the arm 2 has a box frame shape, a part of which is shown in the figure, and a part of the vertical frame 2a and the upper and lower horizontal frames 2by2c connected to the upper and lower ends of this. is illustrated.

A catch body 3 is fixed to the lower frame 2c, and the catch body 3 is attached to the lower frame 2C.
A flat, ring-shaped seat portion 3a facing upward, a cylindrical skirt portion 3b hanging downward from the circumference of the seat portion 3a, and a seat portion 3.
It has a cylindrical locking part 3c that stands up on the center part a, each part is integrally molded with conductive metal, the skirt part 3b is hollow and opens downward, and the locking part 3c is hollow and open downward. It is open upwards and consists of stepped members with large and small diameter cylinders.

The seat body 3 is located at the middle part of the skirt portion 3b in the height direction and is connected to the lower frame 2c.
It is fitted into a mounting hole 2d provided in the holder and fixed by welding or the like, and a current-carrying piece 4 is attached to the locking part 3c so as to protrude upward.

A pressing set spring 5 is attached to a portion of the upper frame 2b of the arm 2 located directly above the receiving seat 3. In the figure, the spring 5 is formed by joining plate springs vertically to form a pantograph shape, but it may be a coil spring or other arbitrary spring. It is preferable that the lower piece 5a, which is the free end of the spring 5, is flat and the side end is curved upward.

The object W to be painted (hereinafter referred to as the work) has a cylindrical shape, and in the example, a tube for power steering of a vehicle is shown. Equipped with a small diameter neck portion W3 at the lower end,
Below the neck part W3 is a flange part W having the same diameter as the main body W1,
The center portion of this is open as an extension of the neck portion W3, and the upper end is open as an extension of the main body W□.

In the above, a thick ring-shaped rubber gasket 6 is placed on the seat portion 3a of the receiving seat body 3 described above, and the gasket 6 is attached to the inner diameter portion 6a.
is fitted around the locking part 30, the upper half of the locking part 3c protrudes above the packing 6, the lower half of the inner diameter of the neck part W3 of the workpiece W is fitted into the upper half of the locking part 3C, and the flange part The lower surface of W contacts the upper surface of the packing 6 on the seat portion 3a, and the current-carrying piece 4 passes through the neck portion W and the inner diameter portion and contacts the inner diameter portion of the lower part of the main body.

A portion W5 protruding above the flange portion W2 of the upper part of the workpiece W
A similar ring-shaped packing 7 is fitted around the periphery, the bottom surface of the packing 7 is placed on the flange portion W2, and the inner diameter portion 7a is placed on the protruding portion W2.
The lid 8 has a flange portion 8b at its lower end, and the lower part of the inner diameter portion 8a is fitted to the upper end periphery of the protruding portion W5. Place the bottom surface on the top surface of packing 7.

With the upper end of the workpiece W closed in this way, the top part 8c of the lid body 8 is forcibly inserted into the lower surface of the lower piece 5a of the spring 5 described above, and the workpiece is placed between the seat body 3 of the jig device 1 and the spring 5. is set, the contact portion with the jig is sealed by the seal 7.6, and the work W is set in the receiving body 3 with the lower end open only facing downward.

This is shown in Figure 2.

In this set state, the jig device is immersed in the paint liquid tank via a hanger or the like, and the workpiece W in contact with the liquid and the current-carrying piece is maintained at a different polarity, and electrodeposition coating is performed.

By the way, air remains in the workpiece W whose upper end is closed, and the pressure of the residual air prevents the paint liquid from entering the workpiece W from the open lower surface of the skirt portion 3b of the seat body 3, and the liquid level decreases. The level does not rise, and the inner diameter portion of the workpiece W is not coated.

Even if you proceed directly to the drying process after painting, the lower end of the workpiece W is open, so even if the temperature inside the drying oven gets high, the stopper will not fly off like in the past, and both father and son will be able to keep the stopper closed. There is no need to remove the product, and continuous processing from painting to drying can be easily performed.

To remove it after drying, simply lift the work W against the spring 5, and it is easy to remove because only the upper half of the engaging protrusion 3C is fitted into the lower half of the neck W2. can be done.

In the above embodiments, there is only one jig, but in reality, a plurality of jigs are provided on multiple arms, and a plurality of workpieces are processed simultaneously at one time.

As is clear from the above, according to the present invention, it is possible to reliably paint only the outer surface of a hollow workpiece, and moreover, the painting and drying can be performed in accordance with changes in processing temperature, making it possible to perform consistent and continuous processing of painting and drying for this type of workpiece. It is easy to realize and is advantageous in terms of labor saving. It is also easy to set and remove workpieces, there are no accidents such as the stopper flying off due to changes in processing temperature, and it is possible to obtain a jig that is highly practical for painting. Furthermore, it has many advantages such as being simple in structure, inexpensive to manufacture, and capable of large-scale processing.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a vertical sectional side view in an exploded state, and FIG. 2 being a similar view in a set state. In the drawings, 1 is a jig, 2 is a support member, W is an object to be painted, 6,
7 is a sealing member, 3 is a seat, 5 is an elastic member, and 8 is a closing member.

Claims (1)

[Scope of utility model registration request] A hollow catch that is supported by a part of the support member and supports while sealing one end of the opening of the hollow workpiece, a member that seals and closes the other end of the opening of the workpiece, and the catch. A painting jig device comprising a support member and a pressure member supported by another portion of the support member that presses the closure member of the object to be coated which is fitted and supported thereon.