JP3049470B2 - Peripheral edge finishing device for ceramic body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral finishing device for a ceramic body such as a dish after molding. The ceramic body to be finished by the present invention is a ceramic body after molding and drying.

[0002]

2. Description of the Related Art As a conventional example of this kind, there is known a device described in Japanese Utility Model Laid-Open Publication No. 6-36803 filed by the present applicant.

In this conventional example, an endless band made of a sponge is provided rotatably in a relaxed state, and a heavyweight is slidably contacted with the endless band inside a position below the endless band. When the peripheral edge of the ceramic body comes into contact with the sliding contact portion of the endless band, when the diameter of the ceramic body is small, the endless band is curved inward lightly and contacts the periphery, and when the diameter is large, Finishing is performed while the contact portion of the endless belt is inwardly curved so as to be in contact therewith. The control for curving the contact portion of the endless band inward is performed by heavy weight.

Accordingly, the contact portion of the endless band basically moves in the front-rear direction in accordance with the shape of the unevenness of the periphery of the rotating ceramic body, so that the periphery of the body can be finished with a relatively simple device. There are advantages that can be made. However, since the endless belt moves only in the front-rear direction with respect to the rotating substrate, it does not accurately follow the contour of the substrate, so the finishing is still performed according to the contour of the substrate. There are drawbacks that cannot be made, and the imperfections of the finishing function have not been eliminated. In particular, it was not possible to expect a finish that was so accurate that the contour of the substrate became complicated.

[0005]

The problem to be solved is that the peripheral edge of the ceramic body cannot be accurately finished. Accordingly, an object of the present invention is to ensure the accuracy of finishing the peripheral edge of a ceramic body.

[0006]

The basic structure of the present invention is to provide a peripheral finishing device for a ceramic body provided with a rotatable elastic rough body, in addition to the rotatable elastic rough body.
A work table having fixing means for a ceramic body is provided, and a copying cam having a contour similar to the contour of the ceramic body at a predetermined distance from the work table. A pair of cam rollers are rotatably provided beside the copying cam and connected to the work table via a rotary shaft, and the copying cam is controlled to move along the cam roller. A porcelain base on the porcelain table, wherein the porcelain base is provided in a rotatable manner in a complex manner following the copying cam; and

In a peripheral finishing device for a ceramic body provided with a rotatable elastic rough body, a work tape provided with a ceramic body fixing means beside the rotatable elastic rough body.
A copying cam having a contour similar to the contour of the ceramic body is provided below the work table and connected to the work table via a rotating shaft. A first arm is provided, a rotating shaft is fitted on one side of the first arm, a driven shaft is inserted through the other side, and the first arm is rotated about the driven shaft. Freely provided, the first
A second arm is provided on the other side of the arm, the driven shaft described above is provided on one side of the second arm, and a drive shaft of a drive motor is provided on the other side. In addition, a second arm is provided rotatably about the drive shaft, and a pair of pulleys are provided on the first arm and the second arm, respectively, and these pair of pulleys are provided. Each time, a belt is hung, an air cylinder is connected to one end of a rotating shaft, and a pair of rotatable cam rollers is provided beside the copying cam. The copying cam is controlled to move along the cam roller. This is a peripheral finishing device for a ceramic body.

[0008]

The ceramic body is centered, the positioning is performed in a state where the copying cam is projected, and the ceramic body is fixed on the work table via fixing means. On the other hand, the elastic rough body is rotated. The air cylinder is operated together with the operation of the drive motor. Thus, the rotational force of the driving motor is transmitted through the pulleys and belts of the first arm and the second arm.
Transmitted to the rotating shaft supporting the table for scanning and the copying cam,
Rotate the work table or the copying cam.

At this time, the movement of the copying cam is controlled by coming into contact with the cam roller, and the rotation of the first arm and the second arm is controlled by the control of the air cylinder.
Acting on the work table, the ceramic body can be moved back and forth, left and right, etc. while rotating around the rotation axis, and the ceramic body can move complexly following the contour of the copying cam. While it is in contact with the rotating elastic rough body, the peripheral edge is finished. In addition, the ceramic body is a drive mode.
By intermittently performing the reverse rotation of the tabs, the finishing is performed from both directions and the finishing is performed accurately.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a schematic perspective view of a peripheral edge finishing device for a ceramic body of the present invention, and FIG. 2 is a plan view of the entire device. Two such devices are shown on the left and right. FIG. 3 is a plan view of a main part of the apparatus, and shows a lower part of a work table. FIG. 4 is a plan view of a main part of the device, showing the operation.

An embodiment of the present invention is for a ceramic body provided with a pair of rotatable sponges or the like, and a rotatable and rotatable compound movable body beside it. Work tape for supporting the substrate W
It comprises a bull 12, a copying cam 14, a first arm 16, a second arm 18, an air cylinder 20, a pair of cam rollers 22, a drive motor 24 and the like.

A pair of elastic rough surface members 10 and 10 made of sponge or sponge are provided on the rotating shaft 26 (see FIG. 3). As is known, these elastic rough bodies 10 are for finishing the peripheral edge of the ceramic body W fixed on the work table 12 (see FIG. 1).

A work table 12 beside the elastic rough bodies 10, 10 is mounted on a rotating shaft 28 so as to be able to rotate forward and backward. As will be described later in detail, the work table 12 carries a ceramic body W thereon, and is controlled to follow the movement of the copying cam 14. In order to fix the ceramic body W, a suction mechanism (not shown) is provided, and a configuration is adopted in which the ceramic body W can be securely fixed by negative pressure from the suction source.

The copying cam 14 is horizontally fixed below the rotating shaft 28. This copying cam 14
Is similar to the contour of the ceramic body W, as is apparent with reference to FIG. The rotating shaft 28 penetrates the copying cam 14 and is vertically provided downward.

Below the copying cam 14, a first arm 16 is provided.
Are arranged. More specifically, the first arm 16 is fitted on a rotating shaft 28 penetrating the copying cam 14,
It is supported horizontally below.

The rotating shaft 28 and the first arm 16 are in a loosely fitted state, and the first arm 16 is rotatable in the horizontal direction. A pulley 30a is mounted below the rotary shaft 28 that penetrates downward from the first arm 16.

A second arm 18 is disposed below the other side of the first arm 16 in a horizontal state.
A driven shaft 40 penetrates vertically on one side of the arm 18, and the driven shaft 40 located above the second arm 18 is a first shaft.
The arm 16 is penetrated.

Since the driven shaft 40 is loosely fitted to the second arm 18, the second arm 18 is rotatable about the driven shaft 40 in the horizontal direction. A pulley 30b is attached to the driven shaft 40 connecting the second arm 18 and the first arm 16, and the pulley 30b described above is attached to the driven shaft 40.
A belt 42 is mounted along with the reel 30a.

Further, another pulley 38a is attached to the driven shaft 40 located below the second arm 18. The drive shaft 36 of the drive motor 24 penetrates the other side of the second arm 18, and the drive shaft 36 and the second arm 18 are in a loose fit state. Are provided rotatably about the drive shaft 36 in the horizontal direction. A drive shaft 36 located between the drive motor 24 and the second arm 18
Is mounted with a pulley 38b, and a belt 44 is mounted on the pulley 38b together with the pulley 38a.

Therefore, the rotational force of the drive motor 24 is controlled by the drive shaft 36, the pulley 38a of the second arm 18,
38b, driven shaft 40 and pulley 30 of first arm 16
a, 30b can be transmitted to the rotating shaft 28,
The second arm 18 is rotatable horizontally with respect to the drive shaft 36, and the first arm 16 is rotatable with respect to the driven shaft 40. As a result, the rotary shaft 28 is in a horizontal plane. It is possible to move to any position above.

On the other hand, an air cylinder 20 is provided beside the copying cam 14 as a control mechanism for rotating the copying cam 14 in accordance with the contour of the ceramic body W while rotating it in the forward and reverse directions. Is provided.

The rod 46 of the air cylinder 20 is pivotally mounted near the lower end of a rotating shaft 28 vertically provided below the copying cam 14. The air cylinder 20 follows the cam roller 22 during the operation of the finishing device.
4 is provided so as to keep the contact.

Further, a pair of cam rollers 22 are rotatably provided beside the copying cam 14, and the copying cam 14 comes into contact with the cam roller 22 so that the workpiece is supported by a rotating shaft 28. The ceramic body W on the table 12 is configured to move compositely along the contour of the copying cam 14 under the action of the air pressure of the air cylinder 20.

Therefore, the air cylinder 20 and the cam low
The line 22 is an element constituting the copying control. When the finishing device is operating, the rod 46 of the air cylinder 20
Is in a contracted state. Therefore, since the copying cam 14 is constantly pulled toward the cam roller 22, the copying cam 14
Then, the air cylinder 20 can absorb a small amount of expansion and contraction of the rod 46 with respect to the displacement of the rotary shaft 28 due to the operation of the cam roller 22.

The cam roller 22 is preferably made of an elastic material such as rubber so that the copying cam 14 comes in contact with the copying control during the copying control, so as not to receive an impact resulting from the movement thereof.

Since this embodiment is configured as described above, its operation will be described below. The ceramic body W is placed on the work table 12, the ceramic body W is centered, and the ceramic body W is controlled in a state where the ceramic body W is projected on the copying cam 14.

When the ceramic body W is fixed on the work table 12, the centering work and the copying cam 14 are performed.
The operation of setting the projector at the position projected on the screen is performed by a conventional means or an appropriate tool in this industrial field.

When the centering and positioning of the ceramic body W are completed, a negative pressure from a driving source is applied to the hermetically sealed portion between the ceramic body W and the work table 12 by a suction mechanism as a fixing means. Acts, and the ceramic body W becomes the work table 1.
2 fixed on.

When the ceramic body W is fixed on the work table 12, the elastic rough surfaces 10, 10 are rotated by the elastic rough surface driving motors 11, 11. Then
The rod 46 of the air cylinder 20 is contracted together with the operation of the drive motor 24 for rotating the work table 12, and the copying cam 14 is brought into contact with the cam roller 22. As a result, the ceramic body W comes into contact with the elastic rough body 10.

Thus, the rotational force of the drive motor 24 is the first
Arms 16 and pulleys 30a, 30 of the second arm 18
b, 38a, 38b and belts 42, 44
Rotating shaft 28 for supporting the table 12 for scanning and the copying cam 14
To rotate the work table 12 and the copying cam 14.

At this time, the copying cam 14 is
The movement of the rod 46 caused by the movement of the copying cam 14 is controlled by the compression and expansion of the air in the air cylinder 20 by the expansion and contraction of the rod 46 of the first cylinder. Arm 16 and the second arm
As a result, the ceramic body W is moved and displaced along the movement of the cam 14 while being rotated about the rotation shaft 28 while moving back and forth, left and right, and the like. The peripheral edge of the ceramic body W is finished.

After finishing the peripheral edge of the ceramic body W, the air cylinder 20 is operated to extend the rod 46, the work table 12 is returned to the original position, and the elastic rough surface body and the work table are returned. The drive motors 11 and 24 for the table are stopped.

In addition, the ceramic body is finished accurately in both directions by intermittently rotating the drive motor in the opposite direction.

[0034]

According to the present invention having the above-described configuration, the following operational effects can be obtained. The ceramic body on the work table is rotated by the action of the rotational force of the driving motor while being controlled by the copying cam, the cylinder mechanism, and the cam roller, so that the elastic rough body is made of the ceramic body. Abuts with a constant stress along the contour of the periphery of the rim, so that the finishing of the rim can be performed efficiently and accurately. Further, since the work table is controlled to move in the front, rear, left and right directions, it is possible to automate the finishing of a ceramic body having a polygonal shape, an elliptical shape, and a peripheral edge having a complicated contour.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a peripheral finishing apparatus for a ceramic body according to an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention, showing a plan view of the entire apparatus, in which two left and right apparatuses are shown.

FIG. 3 is a plan view of a main part of the embodiment of the present invention,
It shows the lower part of the work table.

FIG. 4 is a plan view of a main part of the embodiment of the present invention, showing the operation in an enlarged manner.

[Explanation of symbols]

 12 Work Table 14 Copying Cam 16 1st Arm 18 2nd Arm 20 Air Cylinder 22 Cam Roller 24 Drive Motor 28 Rotation Shaft 36 Drive Shaft 40 Follower Shaft 42 Belt 44 Belt

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B28B 11/18 B28B 1/02 B28B 11/22

Claims (2)

(57) [Claims] An apparatus for finishing a peripheral edge of a ceramic body provided with a rotatable elastic rough body, comprising: a work table having fixing means for the ceramic body beside the rotatable elastic rough body. Is provided,
A copying cam having a contour similar to the contour of the ceramic body at a predetermined interval from the work table is connected to the work table via a rotation shaft, and a pair of cams are provided beside the copy cam. The cam roller is rotatably provided, and the copying cam is controlled to move along the cam roller, so that the ceramic body on the work table follows the copying cam and can be rotated in a complex manner. A peripheral finishing device for a ceramic body, wherein the peripheral finishing device is provided. 2. A peripheral edge finishing apparatus for a ceramic body having a rotatable elastic rough body, wherein a work table having a ceramic body fixing means is provided beside the rotatable elastic rough body. A copying cam having a profile similar to that of the ceramic body is provided below the work table and connected to the work table via a rotating shaft, and a first cam is provided below the copy cam. An arm is provided, a rotary shaft is fitted on one side of the first arm, a driven shaft is inserted through the other side, and the first arm is rotatable about the driven shaft. A second arm is disposed on the other side of the first arm, the driven shaft is inserted through one side of the second arm, and a drive shaft of a drive motor is disposed on the other side. And a second arm is provided rotatably about the drive shaft. A pair of first and second arms are provided for each of the first and second arms. A belt is mounted on each of the pair of pulleys, an air cylinder is connected to one end of the rotating shaft, and a pair of rotatable cam rollers are provided beside the copying cam. Wherein the copying cam is controlled to move along a cam roller.