JPH08197516A - Horizontal potter's wheel for ceramic products - Google Patents

Abstract

PURPOSE: To draw a gold wire or the like on a ceramic product efficiently, accurately and beautifully by a method wherein a sitter is composed of a potter' s wheel plate (ROKURO PLATE) an outer surface of which an elastic component is fitted to, a centering plate equipped with an opening corresponding to a diameter of a bottom part of a ceramic product, and a presser ring. CONSTITUTION: After fitting a bottom part 19 of a ceramic product into an opening part of a centering plate 16 in a sitter, it is made to abut against an elastic component fitted onto an outer peripheral surface of a potter's wheel plate (ROKURO PLATE) 13. Then, a presser ring 18 is fitted to the elastic component 15, and the bottom part 19 is held by fixing to the potter's wheel plate 13. Thereafter, air is sucked with an air suction apparatus, and its degree of suction is controlled by adjusting with a vacuum adjusting valve. Besides, while a hollow rotary shaft is controlled by conforming to an operation speed, wire drawing operation is carried out with a paintbrush or the like impregnated with, for example, a platinum resinate solution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rokuro for wire drawing which is a pattern of ceramic products such as ceramics, hollows, and glass products, and more specifically, to efficiently draw wire on its surface such as cups and uprights. It relates to horizontal wire drawing rockers for ceramic products to perform well, accurately and beautifully.

[0002]

2. Description of the Related Art The manufacturing process of ceramics tableware and the like is roughly divided into two processes, that is, a manufacturing process of raw material and a painting process for decoration. Of these, there are various painting processes, such as those for the bottom of the glaze (painting), those for the inside of the glaze (sink-in painting), and those for the surface of the glaze (painting). As one of the drawing processes, there is a drawing process. In this drawing process, conventionally, a cup, a bowl, a clay bottle, a jug or the like whose outer surface has a curved or angular shape is placed on a horizontal turntable and horizontally rotated horizontally to perform the drawing. Is common.

FIG. 4 (a) is a schematic diagram for explaining a mode of a conventional horizontal rotation type drawing apparatus (locus), and FIG. 4 (b) shows a usage mode thereof. In FIG. 4A, 21 is a pedestal, 22 is a support shaft, and 23 is a rotary base, and the rotary base 23 is rotatably supported on the upper end of the support shaft. As shown in Fig. 4 (b), when using it,
For example, the cup 20 or the like is placed on the rotary table 23, and the rotary table 23 is rotated by one hand while the wire drawing work is performed by a paintbrush or the like by the other hand.

In this case, however, the drawing needs to be done with the paintbrush sideways, so that, for example, the replenishment of the pigment liquid may be insufficient, or the lines may be faint, resulting in uneven drawing, and the bowl and the cup. , Ceramic bottles and other ceramic products have relatively large dimensional errors during molding and firing, and there are various shapes and sizes, and the circumferential drawing distance and other factors change during drawing due to dimensional errors, etc. There were various drawbacks.

FIGS. 3 (a) to 3 (c) show a few examples of the same cup made of ceramics or the like, but differing only in the shape of the bottom. For example, from the upper edge and the edge thereof, It is necessary to apply a gold wire, a silver wire and other pattern lines L to a predetermined position such as a space of 1 mm downward with a paintbrush or the like to make the line width uniform and to prevent uneven shading (that is, It is necessary to make the interval from the upper edge part a predetermined width such as 1 mm, and make sure that there is no difference in width between the line width itself). It requires a high degree of skill to do so.

However, in the above-described horizontal rotation type drawing apparatus, not only the finishing speed is slow and inefficient, but also the rotation of the turntable 23 must be manually adjusted. In addition, since it requires a high degree of skill to accurately position the paintbrush on the region to be processed such as the cup 20 and to make the line width constant, it is necessary to work from the lateral direction or the obliquely upward direction. The operator's neck and shoulders, as well as the back muscles, are also burdened, causing neck pain, shoulder pain, back muscle pain, etc., which makes it difficult to continue working for a long time.

[0007] According to Japanese Utility Model Publication No. 61-38895, in this respect, when drawing with a paintbrush, it is necessary to align the tip of the brush each time the drawing is done, because the tip of the brush is divided and misaligned with one stroke. , Tedious and irrational. ",
It was pointed out that there are drawbacks such as "The line cannot be replenished because the pigment cannot be replenished and the line is not evenly drawn", and this problem is solved by installing a pigment supply device equipped with a sponge body at the tip. Although it is said that it has been solved, the form is still the same as that of the horizontal rotation type as described above, and it is mechanized by the pigment supply device, but regarding the drawing accuracy etc. by this Details are not clear.

As described above, in any case, the drawing process for the ceramic products is a process in which the ratio of manual work by workers is high, and particularly, the cup, pot, creamer,
The drawing process for ceramic products such as oval plates and other ceramic products that have curved or square surfaces on their surfaces basically depends on manual work, and is largely dependent on the skill level of the operator. This is a process in which productivity is difficult to increase.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of such problems and circumstances in the drawing process of gold wire and the like for pottery such as bowls and cups, hollow and other ceramic products. Yes, as a rocker for holding and working ceramic products at the time of drawing, this is a horizontal type, and its sitter (holding part including the centering part) is remarkably devised, so that it is especially useful for cups and pots. , Clear
Efficient manual drawing work for ceramic products such as ma
It is an object of the present invention to provide a new and useful line-quoting wheel for accurate and beautiful implementation.

[0010]

SUMMARY OF THE INVENTION The present invention comprises a rotatable hollow rotary shaft, one of the hollow rotary shafts being connected to and communicating with an air suction device via a rotary joint and a vacuum adjusting valve. In addition, a scissor for holding the bottom of the ceramic product is attached to the other side, and the center is provided with an opening corresponding to the diameter of the bottom part of the ceramic product, which is equipped with an elastic member on its outer surface. (EN) Provided is a horizontal drawing roller for a ceramic product, which comprises a plate and a pressing ring.

In this case, the elastic member can preferably be made of sponge or rubber, and the centering plate having different beach diameters depending on the diameter of the bottom (leg) of the ceramic product. It can be applied to various products with different leg diameters just by preparing and replacing them. Further, with respect to the freely rotatable hollow rotary shaft, the number of rotations thereof is appropriately set for each item, but at the time of its operation, the product to be treated may be attached or detached by stopping the rotation, and for example, By loosening the tension of the rotating belt and causing it to slip and stop, it is possible to attach or detach the product to be processed without stopping its rotation.

[0012] Actual fair 2-13460, actual fair 2
No. 13461, Jpn. Pat. Appln. No. 2-30416 and the like propose so-called rubber dowel type bowl holders, but none of these techniques intends to draw a gold wire as in the present invention. This is for printing a pattern on the outer surface of the bowl by bringing a printing plate or the like into contact therewith. Therefore, in the bowl holding in these techniques, since the inner concave wall surface of the bowl body is brought into contact with the rubber dowel-shaped holder, the edge of the bowl outer surface is located on the rotary shaft end side, for example, Although it cannot be immediately applied to the drawing of a portion such as L shown in FIG. 3, in the present invention, the bottom portion (leg portion) of the ceramic product is held and fixed, so that the drawn portion is a rotating shaft. It is located on the side opposite to and the edge of the outer surface such as a bowl can be drawn accurately and easily.

Further, the horizontal wire drawing rocker for ceramic products according to the present invention can be applied to various wire drawing from thin wire to wide border wire, and the centering can be easily carried out during the operation using the wire. Effective and excellent in that it is not necessary to turn the wheel by hand, continuous work operation is possible, replacement of the sitter is easy, high skill is not required for the work, and training is possible in a short period of time. In addition, it has advantages and features, and is also released from an unreasonable work posture, and is free from neck pain, shoulder pain, and back pain, and the work posture of the worker is improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Aspects and examples of the present invention will be described below in more detail with reference to the drawings, but it goes without saying that the present invention is not limited to these aspects and examples. 1 (a) is a plan view of one embodiment, FIG. 1 (b) is a cross-sectional view of a main portion thereof, and dimensions shown in FIG. 1 (b) are
It shows an example of a device scale.

In FIG. 1, 1 is a pair of support bases, 2 is a hollow rotary shaft, 3 is a pair of bearings, 4 is a pair of pulleys, and as shown, the hollow rotary shaft 2 is a support base 1. By bearing 3
It is rotatably supported by the pulley 4 and is rotated by the pulley 4. The hollow portion of the hollow rotary shaft 2 constitutes a ventilation passage. The rotation of the pulley-4 is performed by the driving force of a prime mover, for example, a motor 6 with a speed controller (transmission) 7, and 5 is a belt for transmission thereof. The rotation speed of the motor 6 is controlled by the speed controller 7, so that the rotation speed necessary for the wire drawing work can be provided. Reference numeral 8 is a switch for the motor 6, and 9 is a pipe for the cover of the hollow rotary shaft 2 or the like.

Further, 10 is a connecting pipe, and this connecting pipe 1
One of the joints 0 is connected to an air suction device (not shown) through a vacuum adjusting valve 11 and the other is connected to a rotary joint 12.
It communicates with the hollow rotary shaft 2 via 2. The rotary joint 12 is for sealing the hollow rotary shaft 2 that rotates during operation with the outside air, and a conventionally known one can be used. Further, 13 is a rocker plate, and as shown in the drawing, the rocker plate 13 is airtightly connected to the hollow rotary shaft 2, and a sitter for the object to be processed such as a cup is attached to the rocker plate 13.

2 (a) and 2 (b) show the outline of the sitter for the object to be processed according to the present invention. In FIG.
Reference numeral 14 denotes suction and suction holes, which correspond to the hollow portion of the hollow rotary shaft 2. As shown, the rocker plate 13 itself has
The elastic member 15 is attached to the outer surface thereof. This elastic member 15 seals against the outside air at the time of operation and softly holds the object to be processed such as a cup, and a pressing ring 18 described later.
For fitting and fixing. This elastic member 15
The material is not particularly limited as long as it can maintain the purpose of use, and may be made of rubber such as polyurethane, sponge or other appropriate material.

Reference numeral 16 is a centering plate, and 18 is a holding ring. During drawing work, ceramic products such as bowls and cups are attached and set by these members. First, the object to be treated (ceramic product) is placed in the opening of the centering plate 16.
After the bottom portion of the above is fitted, it is brought into contact with the elastic member 15, and then the pressing ring 18 is fitted and fixed. In this case, the mounting and setting can be sufficiently performed only by these respective members, but it is more easily mounted by sucking with the air suction device and adjusting and controlling the degree of suction with the adjusting valve 11. You can

The arrow (←) in FIG. 2 (a) shows the setting direction of these members, and FIG. 2 (b) shows the state when, for example, bowl mounting and setting are completed. Here, in FIG. 2 (b), 19 is the bottom of a ceramic product such as a bowl or cup.
It is fixed by the suction inside, the suction acting through the suction holes 14 and the sealing of the elastic member 15, and the elastic member 1
By 5 the ceramic product can be held softly at the bottom part thereof, so that it is possible to hold the ceramic product sufficiently without damaging the ceramic product until the wire drawing work after the set time and this work is completed and it is removed. is there.

Reference numeral 17 in the drawing denotes the beach diameter of the centering plate 16. The centering plate 16 needs to be adjusted according to the bottom diameter of each ceramic product (item) whose wire diameter 17 is to be drawn, but according to the present invention, among the above-mentioned members, the centering plate 16 is used. 16 can be applied to various ceramic products by only changing the beach diameter 17 depending on the bottom diameter of each item and replacing it (the other members can be used as they are) ). Further, although there are various bottoms such as bowls and cups as shown in FIGS. 3A to 3C, any of these shapes can be sufficiently held.

<< Usage Mode >> The horizontal drawing roller according to the present invention has a configuration roughly as described above. Hereinafter, the usage mode will be described with reference to the drawings (FIG. 1, FIG. 2, etc.). To do. As shown in the figure, the bottom portion 19 of the ceramic product 20 such as a cup is first fitted into the opening of the centering plate 16 and then brought into contact with the elastic member 15. Then, the pressing ring 18 is fitted and fixed.

Next, the air is sucked by the air suction device, and the degree of suction is adjusted and controlled by the vacuum adjusting valve 11, while the motor 6 is operated and the speed controller (transmission) 7 is operated. While controlling the rotation of the hollow rotary shaft 2 in accordance with the working speed (this adjustment control can be performed by a stepping type, etc.), the wire drawing work is performed, for example, by a paintbrush impregnated with a platinum resin. . After the completion of this work, the operation of the motor is stopped, and then the holding ring 18 is removed while holding the ceramic product 20 such as the cup, and at the same time, the centering plate 16 is removed. Since it is sufficient to remove it from the elastic member 15, it can be performed easily and easily.

<< Experimental example >> Five workers were used for the ceramic cup (outer diameter of the bottom part: 45 mmφ) having the shape shown in FIG. I actually carried out the gold drawing work. The scale and size of the wheel are configured with the dimensions shown in FIG. 1 (b) (unit of mm, the dimensions of the parts not shown in the dimensions correspond to the dimensions shown), and the centering plate The beach diameter 17 of the 16 openings was 45 mmφ according to the outer diameter of the bottom of the cup. Further, a sponge made of urethane resin was used as the elastic member 15, and the remaining members, that is, the hollow rotary shaft 2, the rotary plate 13, the centering plate 16, the pressing ring 18, etc. were made of steel materials.

Regarding the work efficiency in this experiment, one hour during the continuous work was divided for each worker, and the number of completed wire drawing works during this period was counted and measured. , 400 pieces / hour / person for the manual work using the wheel shown in FIG. 5, but 700 / hour / person for the case of using the above-mentioned wheel / locus according to the present invention. Seen as the work improvement rate, 75% (= 700−400 ÷ 400 × 100)
%), Which is equivalent to an increase in efficiency, and no workers experienced neck pain or shoulder pain during and after the work using the wire drawing wheel according to the present invention.

Further, there was no drawing defect in both the case of using the conventional wheel and the case of using the wheel of the present invention. However, when the finished product was visually observed in detail, no variation was found in the width and shade of the line in the product obtained by using the potter's wheel according to the present invention,
Also, there was no error in the drawing position (1 mm from the upper edge), but the product obtained by using the conventional rocker has some variations in the line width and the shading, and the drawing position is also small. However, some were different from the predetermined position.

[0026]

As described above, according to the wheel of the present invention, it is possible to draw a ceramic product efficiently, accurately and beautifully. In addition, centering is easy, you don't need to rotate the wheel by hand, you can work continuously, you can easily replace the sitter, you are released from an unreasonable work posture when working, neck pain, shoulder pain, back muscles It has no pain, does not require a high level of skill for work, and can be trained in a short period of time. Therefore, various excellent advantages and effects can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view showing one embodiment of a wire drawing wheel according to the present invention.

FIG. 2 is a diagram showing an outline of a sitter for an object to be processed in FIG.

FIG. 3 is a diagram showing a few examples of bottom structures for cups, for example.

FIG. 4 is a diagram showing an aspect of a conventional horizontal rotation type drawing wheel.

[Explanation of symbols]

 1 Support 2 Hollow rotary shaft 3 Bearing (pair) 4 Pulley (pair) 5 Belt 6 Oriental motor 7 Speed controller (gearbox) 8 Switch 9 Cover pipe 10 Connection pipe 11 Vacuum adjustment valve 12 Rotary joint 13 Roller plate 14 Suction / suction hole 15 Elastic member 16 Centering plate 17 Centering plate beach diameter 18 Holding ring 19 Cup 20 Cup bottom 21 Pedestal 22 Support shaft 23 Rotating table L Gold wire, etc.

Claims (4)

[Claims] 1. A rotatable hollow rotary shaft, one of the hollow rotary shafts being connected to and communicating with an air suction device via a rotary joint and a vacuum adjusting valve, and to the other. Is attached with a sitter for holding the bottom of the ceramic product, and the sitter is composed of a rocker plate having an elastic member attached to its outer surface, a centering plate having an opening corresponding to the bottom diameter of the ceramic product, and a holding ring. A horizontal wire drawing tool for ceramic products. 2. The horizontal wire drawing lock for a ceramic product according to claim 1, wherein the rotatable hollow rotary shaft has an adjustable rotational speed. 3. The horizontal wire drawing rocker for ceramic products according to claim 1, wherein the elastic member is sponge or rubber. 4. The ceramic product according to claim 1, 2 or 3, wherein the centering plate is replaceable with a centering plate having an opening having a beach diameter corresponding to the diameter of the bottom of each ceramic product. Horizontal wire drawing.