JPH0535706B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention provides a ceramic base for automatically painting a line pattern along the rim of a ceramic base such as a plate, a bowl, or a pot. This invention relates to a painting device.

Conventional techniques and problems to be solved by the invention Conventionally, the painting process of adding a line pattern along the rim of a ceramic base was done by placing the ceramic base on a rotary table, rotating it, and then holding it in the hand. This is done by applying paint to a brush and pressing it against the rim of the ceramic base.In particular, the brush is rotated around its axis so that the line pattern can be applied evenly over the entire circumference without any shading, and The method is to press the material while gradually pulling it towards you, but since it is done manually as mentioned above, there is a limit to improving work efficiency, and it is also difficult to press it against the rim of the ceramic base. Since the stroke of the brush differs slightly depending on the individual worker, there was a drawback that it was not possible to apply the same line pattern to all ceramic bases.

Means for Solving the Problems As a means for solving the above-mentioned problems, the ceramic base painting device of the present invention is provided between a rotary table on which a ceramic base is placed and rotates, and a paint tank storing paint. A bearing body that supports a rotating shaft that reciprocates within a certain angle range around a substantially horizontal axis that is substantially perpendicular to the direction connecting the rotating table and the paint tank, and that is integrally protruded from the rotating shaft. Attach the mounting shaft with a brush attached to the tip,
It is supported in a posture substantially orthogonal to the rotation axis, allowing free rotation around the axis and freedom of movement in the axial direction, and applying a rotational driving force to the rotation shaft and the mounting shaft, causing the shaft to rotate as the mounting shaft rotates. The structure is equipped with a drive mechanism that moves it in the direction.

Note that it is effective for the above-mentioned drive mechanism to have an endless power transmission belt twisted approximately 90 degrees and stretched around the rotating shaft and the mounting shaft.

Further, the rotating shaft is supported by a moving body that reciprocates in a direction parallel to the direction connecting the rotating table and the paint tank,
Preferably, the position of the stopper that defines the stop position of the movable body on the rotary table side gradually changes in the direction of movement of the movable body.

Furthermore, it is preferable that the rotating shaft is supported by a moving body that reciprocates in a direction parallel to the direction connecting the rotating table and the paint tank, and that the paint tank is provided with a paint cutting plate for squeezing the brush applied to the paint.

Effects and Effects of the Invention According to the present invention, when the rotating shaft is rotated in one direction, the brush is pushed into the paint tank and paint is applied, and when the rotating shaft is subsequently rotated in the opposite direction, the paint is applied. The attached brush swings so as to be pressed against the rim of the ceramic base rotating on the rotating table, and the mounting shaft of the brush rotates around the axis by a drive mechanism provided on the rotating shaft. The brush moves forward or backward in the axial direction, rotates around the axis, and is pressed against the rim of the ceramic base while moving either forward or backward in the axial direction, thereby causing the brush to move along the rim of the ceramic base. A single line pattern is painted, and as in the case of manual painting, the brush rotates around the axis and moves in the axial direction while being pressed against the rim of the ceramic base. Since it is possible to reliably paint a uniform line pattern with no shading all around the edge, and because it is done dynamically, work efficiency can be greatly improved, and all This has the effect of allowing the same line pattern to be applied to the ceramic base.

The drive mechanism for the mounting shaft is an endless power transmission belt twisted approximately 90 degrees between the rotating shaft and the mounting shaft, so that the mounting shaft can be rotated around the shaft even with an extremely simple structure. and can be moved in the axial direction.

In addition, the rotating shaft is supported by a moving body that reciprocates in a direction parallel to the direction connecting the rotating table and the paint tank.
If the position of the stopper that determines the stop position on the rotating table side of the moving body is gradually changed in the direction of movement of the moving body, the stopping position on the rotating table side of the rotary shaft will gradually move. The part of the brush that is pressed against the ceramic base gradually changes from the tip to the base, or vice versa, which avoids premature damage caused by constant pressure on only a certain part and wear. It is possible to significantly extend the service life.

In addition, the rotating shaft is supported by a moving body that reciprocates in a direction parallel to the direction connecting the rotating table and the paint tank.
If a paint cutting board is installed in the paint tank, the brush with paint will be squeezed by the paint cutting board when it comes out of the paint tank, and the excess paint will fall into the paint tank, and the brush will be removed. There is no risk of paint falling off while moving to the turntable, and the surrounding area can be kept clean.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In Fig. 1, two rotary tables 2 are installed at a fixed interval in front of a base 1, and rotate with ceramic bases a to be painted on them, and paint b is placed on the bases 1. Two stored paint tanks 3 are placed in pairs with each turntable 2, and the base 1
When the piston rod 8 of the air cylinder 7 advances or retreats, the mounting frame 5, which is supported by legs 6 at an upper position on one end side, is moved in a direction parallel to the direction that connects the rotating table 2 and the paint tank 3, which form a pair with each other. A movable body 11 that reciprocates along the guide 9 is attached to the movable body 11, and the stop position of the movable body 11 on the paint tank 3 side is set at a fixed position by hitting a fixed stopper 12. At the stop position on the side, the eccentric cam 13 serving as a stopper is
By rotating the rotary table 2 by a fixed angle by a pulse motor 14 every time the rotary table 2 is reciprocated, the rotary table 2 is gradually moved in a direction closer to the rotary table 2.

This movable body 11 is equipped with a horizontal movable arm 16 that protrudes in a direction perpendicular to the direction connecting the rotary table 2 and the paint tank 3. At the upper ends of mounting plates 17, 17 hanging from both ends of this movable arm 16, A horizontal drive shaft 18 is rotatably supported, and is rotated in a forward or reverse direction within a certain angle range via a drive belt 20 by the forward or reverse rotation of a reversible motor 19 attached to the upper surface of the moving arm 16. A fixed support shaft 21 is extended in parallel below the drive shaft 18, and the support shaft 21 is provided at positions corresponding to the rotating table 2 and the paint tank 3, which form a pair. , mounting cylinders 24 for mounting brushes 23 are rotatably supported, and each mounting cylinder 24 is drivingly connected to the drive shaft 18 described above. In addition, the above-mentioned movable arm 16
is a vertical guide 16a provided on the moving body 11.
It is moved up and down by the driving force of an air cylinder (not shown), and its vertical position can be adjusted according to the height of the ceramic base a to be decorated.

The mounting cylinder 24 to which the brush 23 is attached is attached to the second
As shown in detail in the figure, a flat groove 27 is formed on the outer periphery of the rotating cylinder 25 with a flange that fits freely in the support shaft 21.
and a pulley 26 formed with V grooves 28 spaced apart from each other.
and the support tube 29 are fitted with a spacer 30 in between and fixed together, and the pulley 26
flat groove 27, and above the flat groove 27, the drive shaft 1
A connecting belt 33 is connected between the pulley 32 fitted to the
The bearing body 35, which is formed by connecting two rings 36 spaced apart by a connecting plate 37, is located directly above the V-groove 28 of the pulley 26 of the mounting cylinder 24. is attached to the tip of an arm 38 protruding from the outer peripheral surface of the support tube 29 in a posture perpendicular to the axial direction of the mounting tube 24, and a mounting shaft with the brush 23 attached to the tip is attached to the bearing body 35. 40 is fitted so as to be freely rotatable around the shaft and slidably in the axial direction, and an endless power transmission belt 4 is fitted between the mounting shaft 40 and the V groove 28 of the pulley 26.
1 is twisted at 90 degrees, and when the mounting cylinder 24 rotates, the transmission belt 41
The mounting shaft 40 rotates around the shaft and moves forward and backward in the axial direction.

Further, on the upper surface of the paint tank 3 on the rotary table 2 side, the brush 23 with paint is squeezed to remove excess paint b.
A paint cutting board 43 is attached to remove the
This paint cutting board 43 has a two-stage staircase shape, with a drop hole 43a transparently provided on the upper surface of the first stage.

Next, the operation of this embodiment will be explained.

As the piston rod 8 of the air cylinder 7 moves back, the movable body 11 moves back toward the paint tank 3 and stops when it hits the fixed stopper 12.
As shown in the chain line in FIG. 1 and in FIG. When the piston rod 8 of the air cylinder 7 advances from this state, the movable body 11 and the movable arm 16 move toward the rotary table 2, and accordingly, the mounting cylinder 24 moves in the same direction, and at the same time, the reversible motor 19
is rotated in the forward direction, and the mounting cylinder 24 is rotated clockwise in FIG. 3 via the drive shaft 18 and the connecting belt 33.
Since a transmission belt 41 twisted by 90 degrees is hung between the V-groove 28 and the mounting shaft 40 of the brush 23, the mounting shaft 40 of the brush 23 rotates as the mounting cylinder 24 rotates.
rotates clockwise when viewed from the tip side of the brush 23 and moves backward in the axial direction.As a result, the brush 23 rotates clockwise when viewed from the tip side and moves backward in the axial direction. While doing so, the brush 23 swings clockwise around the support shaft 21 in the clockwise direction in FIG. The paint is squeezed at the corner of the first stage of the board 43, then squeezed at the corner of the second stage, and the excess paint b is dropped into the paint tank 3 from the front face of the corner of the first stage and the drop hole 43a. As shown in the figure, after the brush 23 takes a horizontal position, the mounting cylinder 24 further moves forward, and the movable body 11 moves toward the eccentric cam 13.
At the point where the movement is stopped, the mounting cylinder 24 is located slightly in front of the rotary table 2, as shown by the solid line in FIG. 1 and in FIG.
The brush 23 is inverted and swung until it assumes a diagonal position pointing slightly upwards before the brush 23 takes a horizontal position, and is placed on the rotary table 2 by a suction device 45 from a conveyor (not shown) installed on the other side of the rotary table 2. The brush 23 rotates around its axis and is pressed against the edge of the rotating ceramic base a while being pulled toward the user, thereby painting a line pattern in a line on the edge of the ceramic base a. Ru.

When the painting is completed, the piston rod 8 of the air cylinder 7 retreats, and the reversible motor 19
is reversed, and the brush 23 rotates counterclockwise when viewed from the tip side contrary to the above and moves forward in the axial direction, while swinging counterclockwise around the support shaft 21 in the counterclockwise direction in FIG. Then, the mounting cylinder 24 and the brush 23 retreat toward the paint tank 3 along the opposite path to the above, and the brush 23 plunges into the paint b as shown by the chain line in FIG. 1 and in FIG. Then, as mentioned above, brush 2
3 heads towards the turntable 2 side again, and during this time, the painted ceramic base a is returned to the conveyor and the next ceramic base a is placed on the turntable 2, and the pulse motor 14 drives the ceramic base a to the turntable 2 side. The eccentric cam 13, which is a stopper, rotates by a certain angle, and the stop position of the movable body 11 moves a little toward the rotating table 2, and the brush 23 is slightly advanced toward the rotating table 2 and touches the rim of the ceramic base a. It is pressed down and the painting is applied to a certain length part slightly closer to the base than the previous one.

In this way, in this embodiment, since the brush 23 is rotated around the axis and is pressed against the rim of the ceramic base a while being pulled toward the user, a uniform line pattern with no shading can be created over the entire circumference. Moreover, the moving body 11, that is,
Since the stopping position of the mounting cylinder 24 on the rotary table 2 side is gradually moved in the direction closer to the rotary table 2 for each painting, the ceramic base a of the brush 23 is moved.
The part that is pressed against the paint gradually changes from the tip to the base, which avoids premature damage caused by constant pressure and wear, greatly extending the service life of the paint. b
When the brush 23 with the brush 23 comes out of the paint tank 3, it is squeezed by the paint cutting plate 43, and the excess paint b is dropped into the paint tank 3. There is no risk of dripping, and the surrounding area is always kept clean.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention;
FIG. 2 is a partially enlarged perspective view, and FIG. 3 is an explanatory diagram of its operation. a...Ceramic base, b...paint, 2...turntable, 3...
Paint tank, 11... Moving body, 13... Eccentric cam, 14...
Pulse motor, 19... Reversible motor, 21... Support shaft, 23... Brush, 24... Mounting cylinder, 35... Bearing body,
40...Mounting shaft, 41...Transmission belt, 43...Paint cutting board.

Claims (1)

[Scope of Claims] 1. Between a rotary table on which a ceramic base is placed and rotates, and a paint tank in which paint is stored, there is a shaft around a substantially horizontal axis that is approximately perpendicular to the direction connecting the rotary table and the paint tank. A rotating shaft that reciprocates within a certain angular range is pivotally supported, and a mounting shaft with a brush attached to the tip is attached to a bearing body integrally protruding from the rotating shaft in a position substantially orthogonal to the rotating shaft. , a drive mechanism that supports the rotary shaft so as to be freely rotatable around the shaft and freely movable in the axial direction, and applies a rotational driving force to the rotary shaft and the mounting shaft to move the mounting shaft in the axial direction as the mounting shaft rotates; A device for painting ceramic substrates, which is characterized by being equipped with a. 2. The device for decorating ceramic substrates according to claim 1, wherein the drive mechanism is formed by an endless power transmission belt twisted approximately 90 degrees and stretched around the rotating shaft and the mounting shaft. . 3. The rotating shaft is supported by a movable body that reciprocates in a direction parallel to a direction connecting the rotary table and the paint tank, and a stopper that determines a stopping position of the movable body on the rotary table side is located at the position of the stopper. 2. The device for decorating ceramic substrates according to claim 1, wherein the decoration gradually changes in the direction of movement of the moving body. 4. The rotating shaft is supported by a moving body that reciprocates in a direction parallel to the direction connecting the rotary table and the paint tank, and the paint tank is provided with a paint cutting plate for squeezing the brush attached to the paint. An apparatus for decorating a ceramic base according to claim 1, characterized in that: