JP2564966Y2 - Rotary 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 a rotary coating apparatus in a coating line.

[0002]

2. Description of the Related Art When an object to be coated, for example, an automobile body, is to be painted, the body usually undergoes various steps such as a washing step, a painting step, and a drying step in a painting line while being conveyed by a carriage.

[0003] Recently, in a coating line, there is a type in which each process is performed while rotating a body in order to improve coating efficiency and coating quality. No. 511168.

As shown in FIG. 6, the rotary coating apparatus in this publication has a bogie 81 provided with rotary shafts 83 for supporting a body 82 rotatably in front and rear. And
As the carriage 81 runs on the rail 93, the vertical rotation shaft 86 rotates through a sprocket 85 meshing with the chain 84, and further, the rotation shaft 83 rotates through a bevel gear 87 and a clutch 88. This causes the body 82 to rotate.

[0005] In this rotary coating apparatus, for example, when the drying process is completed and the body 82 is moved by the loading and moving apparatus, the rotary shaft 83 is stopped in order to hold the body 82 in the upright position. A mechanism 89 is provided. As shown in FIG. 7, the stop mechanism 89 includes a cam 91 provided on the rotating shaft 83 and an operation rod 90 that moves up and down in contact with a movable floor 94 that moves up and down.

When the body 82 is held in the upright position by the stop mechanism 89, the movable floor 94 is raised while rotating the rotating shaft 83. Next, the operating rod 90 is raised by the rise of the movable floor 94, while the clutch 88
Is disconnected. Since the application of the rotational force to the body 82 is interrupted by the disconnection of the clutch 88, the body 8
2 rotates only by inertia. Next, the operating rod 9
8 comes into contact with the cam 91, and
As shown in FIG. 7, the body 82 is stopped in the upright position by fitting the roller 92 into the concave portion 91a of the cam 91.

[0007]

However, in the above-described conventional rotary coating apparatus, a roller 91 is pressed against one point on the outer periphery of a rotating body, and a mechanism for suddenly stopping and rotating the rotary body. Even if the 92 is inserted into the recess 91a, the braking force for stopping the rotation does not act sufficiently. Further, when the body 82 stops at an arbitrary rotation position, the roller 92 may not be inserted into the concave portion 91a, and there is a problem that it is difficult to set the body 82 to the upright position.

Further, depending on the position of the center of gravity of the body 82, even if the roller 92 is inserted into the recess 91a and stopped,
There is a problem that the fixing function is small and may become unstable.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a rotary coating apparatus capable of surely rotating an object to be coated to a predetermined posture position and holding the object in a stable state. Is to provide.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a rotary coating apparatus according to the present invention rotates an object to be coated around a substantially horizontal rotation axis while cutting a rotation drive path of the object to be coated. In the rotary coating device which can be in contact with the rotary coating device, a lever is provided which extends laterally from an axis in the rotation transmission path on the side of the workpiece to be coated or an extension of the shaft, and a lever for stopping the workpiece in a predetermined posture position. Formed at the tip of the
A pressing member for pressing a pin parallel to the axis via an elastic member is provided.

[0011]

According to the above construction, after the rotation drive path of the object rotating about the substantially horizontal rotation axis is cut, the shaft or the extension of the axis in the rotation transmission path on the object side is cut. A pin formed at the tip of the lever extending laterally from the line and parallel to the axis is pressed by the pressing member. As a result, the pin and the lever rotate, and the object to be coated rotates via the rotation transmission path. When the pin is located at the uppermost position, the object to be coated is supported in advance so as to be in an erect position, for example, so that the object to be coated can be set to a predetermined posture position such as an erect position. .

As described above, when the pin is rotated by the pressing member to rotate the object to be coated, the pin is rotated. Can be rotated to a predetermined posture position.

Further, once the pin is located at the uppermost position, the force to further rotate the pin is suppressed by the pressing member, so that the object to be coated can be stably held at the predetermined posture position.

Further, since the pressing member abuts on the pin via the elastic member, it is possible to reduce an impact when the pressing member abuts on the pin by the elastic force of the elastic member. Therefore, it is safe even if the pin is located at the bottom dead center.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In addition, the spin coating device of this embodiment is applied to coating of an automobile body,
It is provided to perform each process such as a washing process, a painting process, and a drying process in a painting line.

As shown in FIG. 2, the rotary coating apparatus of the present embodiment has a base 13, a front support 14 (left side as viewed in the drawing).
Front strut 1 of the trolley 1 composed of the rear strut 15
4 and a body 2 as an object to be coated on each upper portion of the rear support 15
Are provided. The arms 3 and 4 are fixed to rotatable rotation shafts 5 and 6 provided on the front support 14 and the rear support 15, respectively, so that the body 2 can rotate around the rotation shafts 5 and 6. Has become. Further, a rotational driving force is transmitted to the rear rotating shaft 6.

On the other hand, a bogie wheel 7, 7 and a connecting member wheel 8, 8, 8 are provided below the base 13 of the bogie 1, and as shown in FIG. Travels on the trolley road surfaces 9, 9 so that the trolley 1 can move in the front-rear direction. Also, connecting member wheels 8.8
8 is adapted to travel on the connecting member road surface 10 while supporting the connecting member 12.

As shown in FIG. 2, a bogie conveyor 11 is provided inside the bogie road surfaces 9, 9 in a longitudinal direction by a drive motor (not shown). Connecting member 1 connected to 1
When the other end of the carriage 2 is locked, the carriage 1 moves forward with the movement of the carriage conveyor 11.

Next, a description will be given of a rotary drive path of the rotary coating apparatus according to the present embodiment.

As shown in FIG. 2, an upper bevel gear 16 is provided on the rotating shaft 6 of the rear support 15 of the carriage 1, and the rotation of the horizontal axis is changed to the rotation of the vertical axis by the upper bevel gear 16. . Also, the upper bevel gear 16
As shown in FIG. 4, a lower bevel gear 18 is provided at the lower end of the vertical drive shaft 17 provided at the lower end, and the rotation direction is changed by the lower bevel gear 18 to the rotation of the horizontal shaft again. On the rear side of the lower bevel gear 18 (right side in FIG. 4), a horizontal drive shaft 19 is provided as a shaft.
0 is provided. The clutch 20 is provided with a clutch lever 21.
By pressing down or lifting up, the rotational drive path can be connected and disconnected.

The clutch 20 has a sprocket 22
The sprocket 22 meshes with a chain (not shown) of a sub-conveyor 23 separately provided at a predetermined position. Since a driving force from a drive motor (not shown) is transmitted to the chain, the sprocket 22, the clutch 20, the horizontal drive shaft 19, the lower bevel gear 18, the vertical drive shaft 17, the upper bevel gear 16 The body 2 rotates through the rear rotation shaft 6 and the arm 4. The sub-conveyor 23 is mounted on the truck surface 9
Is provided at a position necessary for rotation of the body 2 in a drying step or the like, and as shown in FIG. 3, the drying step is completed and immediately before movement by a placing / moving device (not shown). , The sub-conveyor 23 is located behind the cart 1 (right side in the figure).

On the other hand, an upright posture holding mechanism 24 is provided on the front side of the bogie 1 as shown in FIG. As shown in FIG. 4, the upright posture holding mechanism 24 includes a front drive shaft 19a formed concentrically to the front side from a horizontal drive shaft 19 via a lower bevel gear 18, and a front drive shaft 1a.
Lever 25 and Lever 25 fixed to the front end of 9a
And a pressing device 28 provided at a position immediately before the stop on the front side of the bogie 1. The crank portion 27 includes a lever pin 26 as a pin provided at the tip of the bogie 1. The lever pin 26 is connected to the front drive shaft 19a.
It is parallel to.

The lever 25 and the lever pin 26
One rotation is equivalent to one rotation of the body 2, and when the lever pin 26 is located at the uppermost position, the body 2 is erected (the roof surface of the body 2 is at the uppermost position). Are supported by the arms 3 and 4.

The pressing device 28 is, as shown in FIG.
A pressing body 33 composed of a lower flat plate 29 and an upper flat plate 30 as a pressing member provided vertically and a spring 31 and 32 as an elastic member between these two flat plates 29 and 30.
And an air cylinder 34 attached to the center of the lower flat plate 29 of the pressing body 33 and moving the pressing body 33 up and down, and an air cylinder 34 provided to maintain the lower flat plate 29 horizontal when the pressing body 33 moves up and down. A pair of lifting guides 35.3
And 5. Note that the springs 31 and 32 can be formed of an elastic member such as rubber.

The operation for maintaining the body 2 in the upright posture position in the rotary coating apparatus having the above configuration will be described below.

First, as shown in FIG. 2, in a coating process and a drying process in a coating line, the truck 1 is moved forward (to the left in FIG. 2) by the truck conveyor 11 and the rotational driving force from the sub-conveyor 23 is used. The body 2 is painted and dried while rotating. By coating and drying the body 2 while rotating in this manner, the number of coating guns to be installed can be reduced, and the smoothness of the coating can be improved. When the drying process is completed, the carriage 1 is separated from the installation position of the sub-conveyor 23, and at this time, the mesh between the unillustrated chain of the sub-conveyor 23 and the sprocket 22 of the clutch 20 is released, so that the body 2 has inertia. By this, it rotates or swings around the rotation shafts 5 and 6.

Here, in the rotary coating apparatus of this embodiment, as shown in FIG. 1, the front drive shaft 19 provided on the extension line of the horizontal drive shaft 19 in the rotation transmission path on the body 2 side.
a formed at the tip of a lever 25 extending laterally from
A lever pin 26 parallel to the horizontal drive shaft 19 is provided.

Therefore, as shown in FIG. 5, when the pushing body 33 of the pushing device 28 is pushed up by the air cylinder 34, the lever pin 26 is pushed by the upper flat plate 30, and the lever pin 26 is pushed up. by this,
The lever pin 26 and the lever 25 rotate, and with this rotation, a rotation transmission path, that is, the front drive shaft 19 shown in FIG.
a, the body 2 rotates via the lower bevel gear 18, the vertical drive shaft 17, the upper bevel gear 16, the rear rotation shaft 6, and the arm 4. When the crank pin 26 is located at the uppermost position, the body 2 stands still in the upright position.
The time required for rotating the crank pin 26 from the lowermost position to the uppermost position is, for example, about 10 seconds. Further, even when the lever pin 26 is located at the bottom dead center, the carriage 1 is moving and a horizontal force is applied to the lever pin 26, so that the bottom pin can be immediately removed from the bottom dead center. I have.

Thereafter, the body 2 is moved to another place by the placing and moving device (not shown) in a state where the body 2 is stationary in the upright position.

The springs 31 and 32 of this embodiment use springs having the same elastic modulus. For example, by forming the springs 31 and 32 to have different elastic coefficients, the carriage 1 Even in a stationary state, when the lever pin 26 comes to the position of the bottom dead center, the upper flat plate 30 that is in contact with the lever pin 26 rises in an inclined state, so that a rotational force is applied to the lever pin 26, thereby causing the lever pin 26 to move. It is possible to rotate.

As described above, the spin coating apparatus of this embodiment is
By pressing the lever pin 26 with the upper flat plate 30, the lever pin 26 is rotated to rotate the body 2, so that the body 2 is rotated to the upright position regardless of the rotational position of the body 2. Can be moved.

Also, once the lever pin 26 is located at the uppermost position, the upper flat plate 30 suppresses the force of the lever pin 26 to rotate further.
Can be held in the upright posture position in a stable state.

Further, since the upper flat plate 30 abuts on the lever pin 26 via the springs 31 and 32, it is possible to reduce the impact when the upper flat plate 30 abuts on the lever pin 26 by the elastic force of the springs 31 and 32. It is safe to be located.

Further, the structure of the rotary coating apparatus does not become complicated because only a part of the rotary drive path is changed.

As a result, the object to be coated can be reliably rotated and moved to a predetermined posture position and held in a stable state.

[0036]

As described above, the rotary coating apparatus according to the present invention is provided with the lever extending laterally from the cut shaft or an extension of the shaft in the rotation transmission path on the workpiece side as described above. In this configuration, there is provided a pressing member formed at the end of the lever for pressing the pin parallel to the axis via an elastic member so as to stop the painted object at the predetermined posture position.

Thus, the pin is rotated by the pressing operation of the pin with the pressing member, and the object to be coated is rotated, so that the object to be coated can be moved regardless of the rotational position of the object. It can be rotated to a predetermined posture position.

Further, once the pin is located at the uppermost position, the force for further rotating the pin is suppressed by the pressing member, so that the object to be coated can be stably held at the predetermined posture position.

Further, since the pressing member abuts on the pin via the elastic member, it is possible to reduce the impact when the pressing member abuts on the elastic member by the elastic force of the elastic member. is there.

Therefore, there is an effect that the object to be coated can be surely rotated to a predetermined posture position and held in a stable state.

[Brief description of the drawings]

FIG. 1 is a side view showing a spin coating apparatus according to an embodiment of the present invention.

FIG. 2 is a front view showing the structure of the spin coating apparatus.

FIG. 3 is a plan view showing the structure of the spin coating apparatus.

FIG. 4 is an enlarged cross-sectional view of a main part, showing an enlarged structure of a pressing device and a crank portion of the rotary coating device.

FIG. 5 is an enlarged front view of an essential part showing a structure of a pressing device in the rotary coating device in an enlarged manner.

FIG. 6 shows a conventional example, and is a front view showing a structure of a spin coating apparatus.

FIG. 7 is a vertical sectional view of a main part showing a structure of a stop mechanism of the spin coating apparatus.

FIG. 8 is an enlarged view of a main part showing a cam provided on a rotary shaft in a stop mechanism of the rotary coating apparatus.

[Explanation of symbols]

 2 Body (object to be coated) 6 Rear rotating shaft 16 Upper bevel gear 17 Vertical drive shaft 18 Lower bevel gear 19 Horizontal drive shaft (shaft) 19a Front drive shaft 20 Clutch 22 Sprocket 23 Sub-conveyor 24 Upright posture holding mechanism 25 Lever 26 Lever pin 27 Crank part 28 Pressing device 30 Upper flat plate (pressing member) 31 Spring (elastic member) 32 Spring (elastic member) 33 Pressing body

Continuation of the front page (56) References JP-A-63-270570 (JP, A) JP-A-64-51168 (JP, A) JP-A-1-1599081 (JP, A) JP-A-5-49985 (JP) JP-A-5-38474 (JP, A) JP-A-63-90463 (JP, U) JP-A-63-173361 (JP, U) JP-A-2-115338 (JP, U) 3-128473 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotary coating apparatus for rotating an object to be coated around a substantially horizontal axis of rotation while disconnecting and connecting a rotary drive path of the object to be coated. A lever extending laterally from the axis of the shaft or an extension of the axis is provided, and a pin parallel to the axis formed at the tip of the lever is pressed via an elastic member to stop the object to be coated at a predetermined posture position. A rotating coating device, wherein a pressing member is provided.