JP3043995B2 - Automatic coating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic coating apparatus for coating small objects to be coated.

[0002]

2. Description of the Related Art In a conventional automatic coating apparatus, a discarding plate is placed on a conveyor, and an object to be coated is placed on the plate and transported to carry out coating. Alternatively, an object to be coated is placed directly on the conveyor and painted, and the paint adhered to the conveyor is washed away on the return of the conveyor.

[0003]

However, in the case of an apparatus using a discarded plate, the process of placing the discarded plate on a conveyor is a manual operation, and paint mist adheres to the discarded plate to affect the object to be coated. There is a problem of giving. In addition, when the object to be coated is directly placed on the conveyor to wash the paint adhered to the conveyor, the cost of the conveyor cleaning device is high, the installation space is large, and the cleaning process is required, thereby reducing productivity. was there. Also, the maintainability of the conveyor cleaning device was poor.

[0004] Accordingly, an object of the present invention is to provide an automatic coating apparatus which does not require a cleaning step and can improve productivity.

[0005]

According to the first aspect of the present invention, there is provided an automatic coating apparatus, wherein a rotating disk which is rotated around a horizontal axis by a driving source is disposed between a carry-in path and a carry-out path to support an object to be coated. A plurality of supports are attached to the turntable so as to be rotatable around a horizontal axis, and weights are provided on the supports, and the objects to be coated entering from the carry-in path are sequentially supported by the plurality of supports,
In the process of rotating and transferring around the axis of the turntable, the paint is applied to the object to be coated while maintaining the coating posture by the weight.
And spray painted from above, characterized in that sending to the output path. In this way, the object to be coated is sequentially supported by the plurality of supports rotating with the turntable, and in the process of rotating and transferring around the axis of the turntable, the paint is applied to the object with the coating posture maintained by the weight. Since spray painting from above ,
Paint mist does not adhere to the carry-in and carry-out paths. Therefore, the object to be coated is not stained with the paint mist, and the conventional washing process of the paint mist attached to the carry-in path and the carry-out path is not required, and the productivity is good.

After the spray coating, the object to be coated is dried while being supported by a support rotating around an axis, and then transferred to a carry-out path, whereby the paint applied to the object to be coated is transferred to the carry-out path. It is difficult to be transferred, a good coating film is formed, and the paint does not adhere to the carry-out path. In the automatic coating apparatus according to the second aspect , the turntable is arranged outside the framed frame.
Together with a plurality of supports in the frame,
A spray device for the object to be coated is movably mounted on the upper part of the frame.
I attached .

[0007] Thus, outside the framed frame
Place the turntable and put multiple supports in the frame
Spraying device on the top of the frame
Since the device is movably mounted , the paint mist does not adhere to the rotating path, the driving source for driving the rotating disk, and the like, as well as the carrying path and the carrying path.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic coating method according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of an automatic coating apparatus according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. Reference numerals 1 and 2 denote a carry-in path and a carry-out path, respectively, each of which is constituted by a belt conveyor, and convey the small article 3 to be coated. Between the carry-in path 1 and the carry-out path 2, a painting section A for painting the object 3 is set. In the coating section A, a rotating disk 4 that rotates around a horizontal rotating shaft 7 orthogonal to the conveying direction of the workpiece 3,
Are provided with a plurality of supports 5 which are mounted in a cantilevered state to support the object 3 and a spray device 6 which sprays the object 3 from above.

The rotary disk 4 is a disk as shown in FIG. 4 and has a shaft hole 8 in the center of which a rotary shaft 7 is inserted and fixed, and a plurality of mounting holes 9. is there. The rotating shaft 7 is rotatably supported by the gantry 10.
In this case, the gantry 10 is, as shown in FIGS.
It comprises a leg 11 provided with wheels (not shown) and a column 12 erected thereon. The column 12 has an insertion hole 12 a for the rotating shaft 7.

The rotation shaft 7 is fixed to the axis of the pinion 13, and as shown in FIGS.
Numeral 3 is rotatable at a predetermined angle by a rack 14 and a stopper 15 and is freely fixed. That is, the rack 14 and the pinion 13 are engaged with each other from the state in which the stopper 15 in FIG. 8A is released, and the rack 14 is slid as shown in FIG.
As shown in (c), the pinion 13 is locked by the stopper 15 and the rack 14 is returned to the origin. In this case, since ten mounting holes 9 are provided, the rack 14 is slid by 1/10 of the circumference of the pinion pitch so that the turntable 4 rotates 36 ° together with the pinion 13. The rack 14 and the stopper 15 are driven by drive sources 16 and 17, respectively (FIG. 1).

As shown in FIGS. 9 and 10, a support 5 is provided with a substrate 19 provided with a mounting hole 18 for mounting to the turntable 4, and two iron rods 2 having one end fixed to the substrate 19.
0 and 20. The intermediate portion of the iron bar 20 is bent upward, and receives the workpiece 3 at its tip end side. As shown in FIG. 2, the support 5 is disposed inside the turntable 4, and a corresponding weight 21 is disposed outside the turntable 4. This weight 21 is, as shown in FIG.
The mounting hole 22 is provided in substantially the same shape as 9. In the mounted state, one end of the shaft fitted into the mounting hole 9 of the turntable 4 is
And the other end is inserted and fixed in the mounting hole 22 of the weight 21.

The coating section A is framed by a frame 23 as shown in FIGS. 1 to 3, and a spray device 6 is provided above the frame. The spraying device 6 is a coating gun and is movably mounted in a direction orthogonal to the conveying direction. Further, only the support 5 is located in the frame 23, and the turntable 4, the column portion 12 of the gantry 10, the pinion 13, the rack 14, the driving sources 16 and 17, etc. are located outside the frame 23. Reference numeral 25 denotes a local discharge hood.

Next, the operation of the automatic coating apparatus will be described. As shown in FIG. 1, an object 3 to be coated that enters from a carry-in path 1 is sent to a coating section A, and is supported by a support 5. By rotating the turntable 4 at a predetermined angle by the pinion 13 and the rack 14 as described above, the workpiece 3 is sequentially supported by the support 5 rotating around the rotation shaft 7, and is rotated and transported around the rotation shaft 7. I do. In this process, the spray device 6 is moved forward and backward,
A paint is spray-coated on the article 3 to be coated. After the spray coating, the object 3 is dried while being supported by the support 5, and then sent out to the carry-out path 2. At this time, if the support 5 is configured to rotate, the article 3 to be coated can be reliably placed on the carry-out path 2.

As described above, according to this embodiment, in the process of sequentially supporting the object 3 on the support 5 and rotating and transporting the object 3 around the rotating shaft 7, the object 3 is Since the paint is applied by the spray device 6 aimed at, the paint mist does not adhere to the carry-in path 1 and the carry-out path 2. Accordingly, the object 3 is not stained with the paint mist, and the conventional process of cleaning the paint mist adhered to the carry-in path 1 and the carry-out path 2 becomes unnecessary, and the productivity is improved.

After the spray coating, the object 3 is dried while being supported by the support 5 and then transferred to the carry-out path 2, so that the paint applied to the object 3 is transferred to the carry-out path 2. Thus, a good coating film is formed, and the paint does not adhere to the carry-out path 2. Further, the object 3 is supported by the support 5 mounted in a cantilevered state on the turntable 4, and the object 3 is supported by the spraying device 6 directed toward the object 3 from above. Only the supporting member 5 can be arranged in the frame 23. For this reason, not only the carry-in path 1 and the carry-out path 2 but also the turntable 4 and the driving sources 16 and 17 for driving the turntable 4.
No paint mist adheres to the parts.

In this embodiment, the rotary shaft 7 of the rotary platen 4 is set in a direction perpendicular to the conveying direction. However, the present invention is not limited to this. For example, by inclining the rotary shaft 7 by 45 ° with respect to the transport direction, the carry-in path 1 and the carry-out path 2
Can be adapted to a configuration in which the direction is changed by 90 °. Further, the rotating shaft 7 can be set in the same direction as the transport direction. In this case, for example, the workpiece 3 is supported on the lowermost left support 5 from the carry-in path 1, and when the support 5 moves to the lowermost right side via the uppermost position, the carry-out path 2 is moved. It should be sent to. Further, the number of the supports 5 attached to the turntable 4 may be plural.

[0017]

According to the automatic coating apparatus of the present invention, the object to be coated is sequentially supported on a plurality of supports rotating together with the turntable, and the object to be coated is rotated and transferred around the axis of the turntable. upper paint while maintaining the painted posture by weight
Since spray painting from direction, paint mist introduction passage and delivery passage does not adhere. Therefore, the object to be coated is not stained with the paint mist, and the conventional process of cleaning the paint mist attached to the carry-in path and the carry-out path is not required, and the productivity is improved.

Further, after the spray coating, the object to be coated is dried while being supported on a support rotating around an axis, and then transferred to a carry-out path. It is difficult to be transferred, a good coating film is formed, and the paint does not adhere to the carry-out path. In claim 2, the framework
Place the turntable on the outside of the
A plurality of supports are positioned inside the
Since the spraying device for the coating material is movably mounted , the coating material mist does not adhere to the rotating disk, the driving source for driving the rotating disk, and the like, as well as the loading path and the discharging path.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic coating apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view of the turntable.

FIG. 5 is a front view of the gantry.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a side view of FIG.

FIG. 8 is an explanatory diagram for driving a rotating disk by a pinion and a rack.

FIG. 9 is a side view of the support.

FIG. 10 is a front view of a support.

FIG. 11 is a front view of a weight.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 carry-in path 2 carry-out path 3 object to be coated 4 turntable 5 support 6 spraying device 7 rotating shaft

Claims (2)

(57) [Claims] 1. A rotating disk, which rotates around a horizontal axis by a driving source, is disposed between a carry-in path and a carry-out path, and a plurality of supports capable of supporting an object to be coated are rotated around the horizontal axis on the rotary disk. Attaching movably and providing a weight on the support, the workpiece to be entered from the carry-in path is sequentially supported by the plurality of supports, and in the process of being rotationally transported around the axis of the turntable, On the other hand, an automatic coating apparatus characterized in that the coating material is spray-coated from above in a state where the coating posture is maintained by the weight and is sent out to the carry-out path. 2. A turntable is arranged outside a framed frame.
And place multiple supports in the frame,
Move the spray device toward the object to be coated on the upper part of the frame.
2. The automatic coating apparatus according to claim 1, wherein the automatic coating apparatus is mounted on the apparatus.