JPS6024463Y2 - Painting mask device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a painting mask device with an improved means for pressing an object to be painted against a painting mask jig.

Normally, when partially painting an object such as a resin product,
2. Description of the Related Art It is known that a painting mask device is used as a means for mechanically covering in advance the portions of an object to be painted that are not to be painted.

Such a painting mask device has a basic configuration in which a pedestal on which an object to be painted is set is driven upward by a cylinder to press the object to be painted against a painting mask jig.

However, in conventional painting mask devices, one or two cylinders are installed perpendicularly to the pedestal, so the pedestal is supported by one cylinder per cylinder, making it difficult to cure the painting mask. It becomes extremely difficult to obtain a uniform pressing force of the pedestal against the tool using the cylinder.

That is, depending on the shape of the object to be painted or the position of the masked portion of the object, the points of force applied to the pedestal are not evenly distributed.

As a result, a gap is created between the object to be coated set on the pedestal and the painting mask jig, and during painting, paint is blown through the gap, which not only makes it difficult to finish the painting parting line neatly. This is a major factor in the frequent occurrence of paint defects, such as painting on unnecessary areas.

Furthermore, the painting mask device equipped with the cylinder in a vertical position as described above has the disadvantage that the overall height of the device is inevitably increased, resulting in an increase in size of the entire device.

This idea was devised in view of the above circumstances, and its main purpose is to ensure that uniform pressing force is applied to the entire pedestal of the object to be coated, so that the parts of the object to be coated that are not to be painted are securely covered. To provide a highly reliable painting mask device which can cover the entire surface of the body.

Another object of this invention is to provide a painting mask device having a structure that allows the entire device to be made compact.

A preferred embodiment of this invention will be described below with reference to the drawings.

Reference numeral 1 denotes a main body of the apparatus formed in the shape of a casing, which is rotatably held on a base 2 via a support shaft 3.

The apparatus main body 1 has a coating mask jig 4 mounted and fixed on its upper part, and is provided with a pedestal 6 inside which can be moved up and down while removably holding an object 5 to be coated.

The pedestal 6 has bilaterally symmetrical link mechanisms 7 and 8 interposed between it and the bottom wall of the device body 1, and a cylinder 9 that connects these link mechanisms and is always parallel to the pedestal 6. It is supported by

That is, in the illustrated example, each link mechanism 7, 8 is an upper link whose base end is pivotally supported by link bearings 10, 11 on both sides of the lower surface of the pedestal 6. a, 8a and the link bearing 10.11
Lower links 7b and 8b connect the free ends of the upper links 7a and 8a to link bearings 12 and 13 that are located directly below and integrally protrude from the bottom wall side of the device main body 1, and the lower links. The upper link and the lower link are configured to expand and contract in the vertical direction.

The upper ends of the upright links 7c and 8c are connected by a cylinder 9.

Therefore, the cylinder 9 is always held parallel to the pedestal 6.

In addition, the pedestal 6 has pinions (not shown) for lifting/lowering guides on both sides, and these pinions are engaged with vertical racks (not shown) provided on both sides of the main body 1 of the device so that it can be raised and lowered smoothly at all times. .

Next, the operation of the painting mask device having the above configuration will be explained.

When the cylinder 9 is shortened from the state where the pedestal 6 is in the lowered position shown in the figure, each of the link mechanisms 7° 8 extends upward equally, so the pedestal 6 rises and the object to be coated held on it is lifted. 5 is finally pressed against the painting mask jig 4.

At this time, the object to be painted 5 is placed in the coating mask jig 4 because the pedestal 6 receives the pressing force from the cylinder 9 at multiple locations per cylinder base (in the illustrated example, two locations at the link bearings 10 and 11). It adheres evenly.

Therefore, there is no gap between the object to be painted and the painting mask jig, and there is no risk that the paint during painting will be blown into parts of the object that do not need to be painted.

On the other hand, when coating the object to be coated which is uniformly pressed against the coating mask jig as described above, the apparatus main body 1 can be rotated freely, so that the coating work can be carried out smoothly and efficiently.

When the painting is completed, when the cylinder 9 is extended, the pedestal 6 is lowered via the link mechanisms 7 and 8, and the coated product can be removed from the pedestal at the lowering stop position.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist, for example, including a plurality of cylinders, or the cylinders being of a double rod type.

As described above, in this invention, the pedestal is driven up and down by a cylinder parallel to the pedestal of the object to be coated via link mechanisms on both ends of the cylinder, so the pedestal is driven and the object to be coated is coated. The pressing force of the cylinder when bringing the pedestal into pressure contact with the mask jig can be applied uniformly over the entire pedestal.

As a result, the unpainted parts of the object to be painted are firmly attached to the painting mask jig without any gaps, and there is no risk of paint being blown between the two during painting, resulting in a clean finish on the painting parting line and the prevention of painting defects. This has the great advantage of being completely preventable.

Furthermore, the painting mask device of this invention has the advantage that the entire device can be made more compact because the cylinder is installed parallel to the pedestal as described above.

[Brief explanation of the drawing]

The drawing is a front view of a painting mask device according to a preferred embodiment of the invention. 1... Apparatus body, 4... Painting mask jig, 5... Object to be painted, 6... pedestal,
7, 8...Link mechanism, 9...Cylinder.

Claims (3)

[Scope of utility model registration request] (1) A painting mask device that mechanically presses the object to be painted against a painting mask jig, which includes a device body that holds the painting mask jig, and a device that is attached to the main body so as to be able to move up and down to the object to be painted. a pedestal for removably holding the cradle; a symmetrical link mechanism provided across the pedestal and the bottom wall of the device main body; and a cylinder that maintains a parallel state. (2) The painting mask device according to claim 1, wherein the device main body is rotatably supported. (3) The coating device according to claim 1 or 2 of the utility model registration claim, characterized in that the main body of the device includes a plurality of cylinders, and the ends of the cylinders are connected to individual link mechanisms. mask device.