JP2632484B2 - Production line for ceramic products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to paint a pattern that matches the shape of a flat ceramic product such as a tile or a tile having a non-circular outline such as an elliptical or polygonal shape or a flower-bunch shape. The present invention relates to a production line capable of automatically performing cutting and finishing, partially glazing, and accurately accommodating in a sheath.

[0002]

2. Description of the Related Art If the contour is a perfect circular plate body , it has no directionality, so there is no problem if the center is correctly positioned. However, the contour is not a perfect circle such as an ellipse, a polygonal shape, or a flower-shaped shape. in pan matrix of gender, and they happen to mad slight even orientation of the disc base material, for example Hanabuchi in painting of the shape of the dish, as shown in FIG. 6, thereby causing the painting defect caused by misalignment between the outer periphery and the picture . Therefore, when painting a dish that is not a perfect circle, a skilled person would set it on the holding seat, matching the position and direction of each one.

[0003]

It is not easy for even a skilled person to set the dish base in the correct direction.
Particularly in the case of a delicate flower-border shape, even a slight displacement can be fatal, so that careful work is required, and the actual situation is that it cannot keep up with the operating speed of an automated painting apparatus.

[0004]

According to the present invention, a holding seat is provided.
Of the washed plate material from the loading device through an endless circulation path
Production line for ceramic products to be sent
A down beforehand ideally leave the basic pattern of the outer peripheral edge shape of the plate base material which is set by the setting angle painting is then stored in a computer, the dishes green body which is set in the holding seat to painting device Before sending out, the outer peripheral shape pattern in the setting posture of the plate base is accurately read using a length measuring sensor, and the outer peripheral shape pattern and the basic pattern are compared and collated by a computer, and the setting angle between them is set. This is a production line for ceramic products that has a direction adjustment function that calculates the deviation, rotates the plate base by an angle corresponding to the deviation, and corrects the plate base at the minimum angle so that the plate base is oriented in the correct painting direction. In addition,
Dish base is a ceramic product whose outer peripheral shape is
Include files.

[0005]

[Action] be set in a state facing the wrong direction, it stores a relationship between the holding seat and the outer peripheral shape pattern dish green body was set in advance the position and direction correctly computer, from the pattern and dishes matrix comparing the read pattern, modified from rotating the amount corresponding to the detected displacement is the perfect dish accurate feed is promised minimum angle
You can paint with the orientation of the pattern exactly on the outer edge of the substrate
You .

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a ceramic product production line according to the present invention in a ceramic dish painting apparatus. Reference numeral 1 denotes an endless circulation path in which holding seats 2, 2,... Arranged at regular intervals are intermittently fed. In addition, in the circulation path 1, the plate material M sent on the supply conveyor 3 is provided.
Section A for transferring the sheet to the holding seat 2 by the transfer 4, a positioning section B for correcting the orientation of the plate base M set on the holding base 2, and a painting section C for performing pad printing on the surface of the plate base. And a carry-out section D for sending the painted substrate to a shedding mechanism (not shown), and the holding seat 2 is stopped at a predetermined position in each section.

The positioning section B has a holding seat 2
Is immediately above the stop position. The suction rotation mechanism 5 includes a motor 5a and a cylinder 5b, and is connected to a vacuum pump. The suction rotation mechanism 5 suctions the plate material M on the holding seat 2 with a suction disk 6 that can be moved up and down. Can be rotated. A length measuring sensor (laser micrometer) 7 is provided on a side portion of the suction rotating mechanism 5, and when the plate substrate M held by the suction rotating mechanism 5 is rotated, the plate substrate M is rotated. The outer peripheral shape pattern is read and the data is input to the computer 8. The position and angle of the length measuring sensor 7 can be adjusted in accordance with the size and outer peripheral shape of the plate body,
A pulse motor is used as the motor 5a.

In the painting section C, three pad printing mechanisms 9.9.9 are arranged next to each other, and these pad printing mechanisms 9 are interlocked with the intermittent drive of the circulation path 1,
Printing of different colors is sequentially performed on the fed plate material. Three or more pad printing mechanisms are not necessarily used, but two or one pad printing mechanism can be used, and printing of the same color can be performed by a plurality of printing apparatuses. The unloading section D is equipped with a transfer 10 for sending the painted substrate to the unloading conveyor.

According to the apparatus configured as described above, in the loading section A, first, the plate material M sent on the supply conveyor 3 is transferred by the transfer seat 4 to the holding seat 2.
Transfer to The plate body M set on the holding seat 2 is intermittently sent and reaches the positioning section B. In the positioning section B, the suction disk 6 of the suction rotation mechanism 5 moves down to suck the plate material M and move up. Subsequently, one rotation is performed while holding the plate body M at that position. At this time, the length measuring sensor 7 moves to the position for reading the outer peripheral shape of the plate body M,
The outer peripheral pattern of the plate body M is read and the data is transmitted to the computer 8. The received data is compared with the correct data, and the angle of the shift is flipped out. The suction turning mechanism 5 is turned by the angle corresponding to the shift to turn the plate body M in the normal direction. In this way, in the positioning section B, the direction alignment function is exhibited.

[0010] As an example of calculating the angle where displacement, basic data and a (Figure 4 a) the sampling data (b in FIG. 4) are overlapped as c in FIG. 4, each of the measurement points T ₁ , T ₂ , T _3, ... Both voltages V ₁ , V
_2, V ₃ · · and _{V'1, V'2,} then summing it calculates the difference _V'3 · ·. Next, a similar calculation is performed by shifting both data by one pitch, and a total of 1250 calculations are performed, such as shifting by one pitch, and the total value is the smallest (theoretically 0). Is found, and according to the calculation example under the condition of how many pitches are shifted, if the plate is rotated by an angle corresponding to the shifted pitch, the plate is set in the correct direction. Since the motor that rotates the plate is a pulse motor, if the pulse motor makes one rotation at 1250 pulses, the number of measurement points matches the number of measurement points, so control becomes simple, and it is possible to determine which direction is faster. Judge who can rotate at the minimum angle
It is also to select a. The plate base that has reached the predetermined position in this way is sent to the painting section after the correction of the direction, so that a stunning product in which the shape and the pattern 11 completely match as shown in FIG. 5 can be obtained. It is.

In the above-described embodiment, the plate is rotated with the plate being sucked up from the holding seat. However, the pattern is rotated by rotating the holding seat or by rotating the length measuring sensor along the outer periphery of the plate. It can be read, and not only the pattern of the entire circumference can be read, but also a rotation of at least one unit is sufficient if the pattern has the same pattern as the flower pattern. Further, since the length measuring sensor has a constant reading width, it is also effective for an elliptical or polygonal dish.
The printing mechanism of the painting equipment can be freely selected and combined such as pad, screen, transfer, stamp, etc.In addition to the painting process, it is applied to each manufacturing process of ceramic products, such as finishing process, stuffing process, polishing process, etc. Regardless of whether the number of measurement points is more or less than 1250, the rotation may be applied by means other than the motor. Further, the computer program that calculates the angle of deviation by comparing the data not only sums the voltage differences and makes a comparison, but also judges whether the differential value of each measurement point is positive or negative in the case of a repeated shape of the same pattern. However, the present invention is not limited to the examples, for example, comparisons.

The present invention is intended to read the outer peripheral shape of a workpiece by a length measuring sensor, and therefore cannot be applied to products in which the difference between the maximum diameter portion and the minimum diameter portion exceeds the reading width of the length measuring sensor. In such a case, a visual sensor (video sensor) may be used as a method of calculating the deviation of the setting angle by reading the outer peripheral shape.
If the pattern of the outer peripheral shape captured by the visual sensor is digitized, the deviation angle can be calculated from the numerical value by computer processing.

[0013]

According to the present invention, which is set in the holding seat
The plate material is passed through the painting device from the loading device through the endless circulation path.
In the production line of ceramic products sent to the shedding mechanism
Therefore , even if the orientation of the plate base set on the holding seat is incorrect, it is automatically corrected to the correct orientation and sent to the work section, and the pattern is correctly aligned with the outer edge of the plate base.
The painting is done, so the position where it was done manually by hand
Defective products caused by inaccuracy of alignment are reduced, and it is possible to meet a large demand.

[Brief description of the drawings]

FIG. 1 is a front view showing an apparatus for painting a ceramic dish.

FIG. 2 is a plan view showing a ceramic plate painting apparatus.

FIG. 3 is an operation explanatory view of a positioning section.

FIG. 4 is an explanatory diagram illustrating a processing example of a reading pattern.

FIG. 5 is an explanatory view of a dish on which an image is accurately painted.

FIG. 6 is an explanatory diagram of a plate in which a picture shift has occurred.

[Explanation of symbols]

A: Loading section, B: Positioning section, C
..Painting section, D..Unloading section, 1 ...
Circulation path, 2 ··· holding seat, 3 ··· supply conveyor, 4 ··· transfer, 5 ··· suction rotation mechanism, 6 ··· suction board, 7 ·
-Length measuring sensor, 8-Computer, 9-Pad printing mechanism, 10-Transfer, 11-Pattern.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication // C04B 41/80 C04B 41/80 Z

Claims (1)

(57) [Claims] An endless plate body set on a holding seat is endless.
From the loading device to the shedding mechanism via the painting device in the circuit
It is a production line for ceramic products to be sent out, ideally
The basic pattern of the outer peripheral shape of the plate base set at the setting angle at which the painting is performed is stored in the computer, and the measurement is performed before sending the plate base set on the holding seat to the painting apparatus . Using a length sensor, the outer peripheral shape pattern in the setting posture of the plate body is accurately read, and the outer peripheral shape pattern and the basic pattern are compared and collated with a computer to calculate a deviation of the setting angle between the two. , Only the angle corresponding to the deviation
With the orientation function that rotates the plate base and corrects it with the minimum angle so that the plate base is oriented in the correct painting direction ,
A production line for ceramic products that paints the picture with the orientation of the picture precisely aligned with the outer edge .