WO2012138027A1

WO2012138027A1 - Method for manufacturing ceramic inlet

Info

Publication number: WO2012138027A1
Application number: PCT/KR2011/008349
Authority: WO
Inventors: 이주연
Original assignee: Lee Ju Youn
Priority date: 2011-04-05
Filing date: 2011-11-03
Publication date: 2012-10-11
Also published as: KR101073078B1

Abstract

The present invention relates to a method for manufacturing a ceramic inlet and is characterized by comprising: a step for preparing a plaster frame, by preparing a plaster frame having an internal space corresponding to the external shape of the ceramic inlet which is in an up / down flipped-over state, and having a jaw portion protruding and extending from the upper portion of the floor of the internal space, and spaced apart by a length corresponding to the transverse thickness of the ceramic inlet from the side walls; a step for injecting plasticized clay, by injecting plasticized clay having sufficient viscosity to form a shape within the internal space of the plaster frame; a step for making an intermediate cast inlet, by making an intermediate cast inlet using a molding machine equipped with a head which simultaneously rotates and moves up-ward the injected plasticized clay within the plaster frame; a step for making drop, by dropping away the sides of the inlet from the floor portion of the plaster frame from the top of the jaw portion according to shrinkage in volume of the intermediate cast inlet as moisture contained therein is absorbed into the plaster frame; and a step for drying by drying the intermediate cast inlet which was dropped from the floor portion of the plaster frame in the step for making drop and separated from the plaster frame.

Description

Manufacturing method of porcelain inlet

The present invention relates to a method of manufacturing a porcelain inlet, and more particularly, is used in conjunction with the upper end of the porcelain body portion, the overall shape of the exact circle, the upper surface of the porcelain inlet portion that can maintain the horizontal level of the inlet section It relates to a manufacturing method.

In general, various containers are used to store alcohol, other beverages, and food. Among them, porcelain, porcelain containers, or porcelain bottles are not only used for appreciation, but also for the purpose of containing foods and drinks including alcoholic beverages, which are generally regarded as valuable because of their high-quality appearance and no harm to the human body. Is preferred.

The body of the porcelain used for this purpose is made in the shape of a circular opening. In order to use food, etc., it is generally necessary to seal the inside thereof. To this end, a method of injecting a cork stopper into the inlet part of a ceramic body or combining a stopper made of plastic is mainly used.

However, when the cork stopper is used, not only opening and closing is not easy, but repeatedly closing and opening the cork stopper may damage the cork stopper and may not be completely sealed. In addition, there is a disadvantage that damage to the luxury appearance of the porcelain body portion due to the cork stopper.

Therefore, it is preferable to use a stopper having a screw portion formed on the outer surface of the inlet portion, which is the upper end of the porcelain body portion, and having a screw portion screwed to the screw portion on the inner surface. In this case, the stopper may be a stopper made of plastic, but a stopper made of porcelain is preferably used.

On the other hand, the inlet portion formed on the upper end of the porcelain body portion, although the screw portion is provided on the outer surface, the inlet portion is currently manufactured, the shape of the inlet due to various reasons, such as problems in the manufacturing process itself or shrinkage caused by drying, etc. There is a problem that it does not form an exact circle, or in particular the upper surface does not form a flat horizontal plane.

If the upper portion of the inlet portion is not precisely rounded or not horizontal, a fatal problem occurs in that the inner space of the porcelain body portion is not sealed in coupling with the stopper.

The present invention, as presented to solve the above problems, is made of porcelain material and the threaded portion is formed on the outer surface thereof, to maintain a precise circular shape and the upper surface is to provide a method for manufacturing the inlet portion is secured horizontally There is this.

Method of producing an inlet portion of the present invention, the body portion is provided with a receiving space therein, coupled to the upper portion of the body portion is formed on the outer surface of the screw portion and the upper surface of the inlet side cross section is a flat porcelain inlet portion, A method of manufacturing the porcelain inlet part in a porcelain set comprising a porcelain stopper made of porcelain material formed on the inner side of the screw part which can be screwed onto the screw part of the inlet part, the outer shape having the porcelain inlet part upside down A plaster frame having an inner space corresponding to the lower surface of the inner space, the plaster frame having a bottom jaw protruding upward from the inner wall by a length corresponding to the transverse thickness of the porcelain inlet; step; A plastic clay input step of injecting a plastic clay having a moldable viscosity into the inner space of the plaster mold; An intermediate step inlet molding step of molding the clay located inside the plaster mold by a molding machine having a head which moves up and down simultaneously with rotation, and forming the intermediate step inlet; The intermediate stage inlet part, as the moisture contained in the inside is absorbed by the gypsum mold and shrinks the entire volume, the inlet-side cross-section is separated from the bottom surface of the gypsum mold and separated from the top of the bottom jaw portion step; And a drying step of separating the intermediate inlet portion from which the bottom surface of the gypsum mold is separated from the gypsum mold in the release molding step, and then drying the gypsum mold.

On the other hand, it is preferable that the bottom jaw protrudes from 0.5mm or more and 1.5mm or less from the bottom surface of the plaster mold.

The bottom jaw portion is preferably protruded 1 mm from the bottom surface of the plaster frame.

In addition, the bottom jaw portion is preferably a disk shape protruding from the bottom surface of the plaster frame to 0.5mm or more and 1.5mm or less.

On the other hand, the upper end of the body portion of the porcelain set, a step-shaped upper end step portion is formed, the lower end of the porcelain inlet portion, the inlet portion of the shape that meshes with the upper end of the body portion formed on the upper end of the body portion It is preferable that a lower stepped part is formed, and a stepped part formed to protrude so that the lower end stepped part of the inlet part is formed at the upper end side of the inner space of the plaster frame.

Moreover, it is preferable that the outer side surface of the said bottom jaw part inclines toward the center.

According to the method of manufacturing a porcelain inlet portion of the present invention, the inlet portion may have an accurate circle shape, and an effect of manufacturing a porcelain inlet, in which the flatness of the upper surface of the cross section of the inlet side, may be obtained.

1 is a schematic sectional view showing a porcelain inlet manufactured by a method of manufacturing a porcelain inlet according to an embodiment of the present invention, a body portion to which the porcelain inlet is coupled, and a porcelain stopper screwed to the porcelain inlet; drawing,

2 is a perspective view of FIG. 1,

3 is a view for explaining a method of manufacturing a porcelain inlet of one embodiment according to the present invention;

Figure 4 is a schematic cross-sectional view of a situation where the up and down direction of the porcelain inlet portion produced by the present invention is reversed,

5 is a view illustrating a state in which clay is placed on a plaster mold,

6 and 7 are diagrams for explaining the intermediate step inlet forming step and the leaving molding step of Figure 3, respectively.

1 and 2, a porcelain inlet 10 manufactured by the porcelain inlet manufacturing method of the present embodiment, a porcelain stopper 20 screwed to the porcelain inlet 10, and a porcelain inlet 10 Shown is a body portion 30 coupled thereto.

Prior to explaining the method of manufacturing the porcelain inlet of the present invention, the porcelain set will be briefly described for clarity. The porcelain inlet portion 10, the porcelain stopper 20 and the body portion 30 is referred to as a 'pottery set'. On the other hand, the porcelain body portion 30 is also referred to as 'pottery container'. The overall shape of the porcelain body portion 30 can be variously modified into a jar shape, a cylindrical shape, and the like.

The screw portion 22 is formed on the inner surface of the porcelain stopper 20. An inner inner surface of the porcelain stopper 20 is provided with an elastic member 25. The elastic member 25 is an elastic member such as silicone, and when the porcelain stopper 20 is fastened to the porcelain inlet 10, serves to increase the sealing property of the inner space of the body portion 30 and reduce damage to the mutually contacting surfaces. Do it.

The porcelain inlet portion 10 has a screw portion 12 which is screwed with the screw portion 22 of the porcelain stopper 20 on its outer surface. After the inlet 10 is manufactured separately, it is coupled to the upper end of the body portion 30 of various shapes. In the part where the inlet part 10 and the body part 30 are mutually couple | coupled, the inlet part step part 14 and the body part step part 34 are provided, respectively, and mutual coupling is easy.

The completed inlet portion 10 is coupled to the body portion 30 by a known method, for example, by applying a glaze to the top of the body portion and heating it to a high temperature.

On the other hand, it is important for the porcelain inlet portion 10 to form a circular shape as a whole, and to maintain the horizontality of the inlet end surface 11, which is the upper surface, for screwing the porcelain stopper 20. If the inlet portion 10 does not maintain a circular shape or does not have a horizontal shape, the porcelain stopper 20 may not be firmly screwed together, and the sealing of the internal space of the body portion 30 is inferior.

The porcelain inlet part manufacturing method of this invention is a method suitable for manufacturing the porcelain inlet part which is close to a circle, and the upper surface is horizontal.

Hereinafter, a method of manufacturing a ceramic inlet according to an embodiment of the present invention will be described in detail with reference to the drawings.

Porcelain inlet manufacturing method of the present embodiment, it comprises a gypsum mold preparation step, plastic clay injection step, intermediate step inlet molding step, leaving molding step and drying step.

The plaster mold preparation step (S1) is a step of preparing a plaster mold 50 having an inner space 51 corresponding to the outer shape of the ceramic inlet portion 10 to be turned upside down.

In Fig. 4, the porcelain inlet portion 10 to be manufactured is inverted in the up and down direction compared to the inlet portion 10 in the state shown in Fig. 1 coupled to the porcelain body portion 30 and placed in a normal use state. It is shown in schematic cross-sectional view. The inlet side end face 11 faces downward in FIG. 4.

The inner space 51 of the plaster mold 50 illustrated in FIG. 5 corresponds to the outer shape of the porcelain inlet portion 10 upside down in the direction as shown in FIG. 4. The side wall is provided with a screw forming portion 53 for forming the screw portion 12 formed on the side of the porcelain inlet portion (10).

On the other hand, the inner space 51 of the plaster mold 50 is the same shape as the porcelain inlet 10, but the volume is larger than the porcelain inlet 10 as a whole. Because plastic clay, which is a material for making porcelain inlets, is made larger than the final size in consideration of this, because the moisture inside the manufacturing process and drying process, and the volume is reduced. Usually, the clay used in the present invention is reduced in volume by about 12 to 15% through drying. Therefore, in consideration of this in the manufacturing step to determine the size of the plaster mold 50, the amount of clay and the size of the head 62 of the molding machine 60.

The plaster mold 50 has a bottom jaw portion 56 on its bottom surface 52. The bottom jaw 56 is spaced apart from the inner side wall provided with the threaded portion 53 by a length corresponding to the transverse thickness of the porcelain inlet portion 10 and protrudes upward.

In the case of the present embodiment, the bottom jaw portion 56 protrudes 1 mm upward from the bottom surface 52 of the plaster mold 50.

The height where the bottom jaw portion 56 protrudes upward is preferably in the range of 0.5 mm or more and 1.5 mm or less. If the protruding height of the bottom jaw is less than 0.5 mm, it is not preferable because the clay of the inlet portion detaches from the bottom jaw too early in the separation step S4 to be described later. It is not desirable that the clay may be released too late from the bottom jaw, or it may be impossible to leave.

On the other hand, the outer surface of the bottom jaw portion 56 is slightly inclined toward the center. The inclination degree is about 10 to 15 degrees with respect to the vertical line. If the outer surface of the bottom jaw portion 56 is inclined toward the center, in the separation molding step, the process of allowing the inlet side cross section to rise above the bottom jaw portion is easily made while the porcelain inlet portion contracts. Accordingly, the inner side surface of the inlet side end portion of the porcelain inlet portion to be manufactured is slightly inclined.

If the inlet-shaped clay is detached from the bottom jaw too early, the circular shape of the inlet is hard to come out, and if it is released too late, a defect such as cracking occurs. On the other hand, the proper protruding height of the bottom jaw 56 is somewhat different depending on the size of the inlet 10 to be manufactured, but considering the size of the porcelain inlet that is usually manufactured, 0.5mm ~ 1.5mm range is appropriate Among them, 1mm is most suitable.

In the case of the present embodiment, the bottom jaw portion 56 is disc-shaped as a whole. The present invention is not limited thereto. That is, in another embodiment, the bottom jaw may have a shape such as a donut having a predetermined width.

The gypsum mold is gypsum in a completely dried state, and once used, can be dried and used again. One plaster mold can be used approximately 80 to 100 times.

Next, a clay input step (S2) of injecting the plastic clay into the inner space 51 of the plaster mold 50 is performed (see FIG. 5).

Plastic clay is generally used when making pottery containers, and has a viscosity that is easily deformed by external force. The amount of clay introduced is determined by taking into account the size of the final porcelain stopper and the volume that is reduced as it dries.

Next, the intermediate step inlet forming step S3 is performed.

Referring to FIG. 6, the intermediate step inlet forming step S3 is intermediate by a molding machine 60 including a head 62 that moves up and down simultaneously with rotation of the clay located inside the plaster mold 50. The step of forming the inlet 10. The forming machine 60 is usually called a roller machine.

In the case of this embodiment, the plaster mold 50 is also rotated while the head 62 is rotating. However, depending on the embodiment, only one of the plaster mold and the head may be rotated. The head 62 may be replaced with another head having a shape and size corresponding to the shape and size of the porcelain inlet. On the other hand, since the molding machine 60 is a machine normally used in the manufacture of ceramics in this field, the detailed configuration and operation thereof will be omitted.

Next, the separation molding step (S4) is performed.

The separation molding step S4 is a step in which the intermediate inlet 10 is separated from the bottom jaw 56 as shown in FIG. 7.

The intermediate stage inlet part 10 located inside the plaster mold 50 is absorbed by the dried plaster mold 50 contained therein and contracts the entire volume in all directions. At this time, if the shrinkage is made, but the inside diameter of the inlet should also be reduced, but actually caught on the bottom jaw 56, the diameter will not be reduced until a certain point.

* If water absorption continues, however, at some point, the inlet side end face 11 of the inlet part 10 falls from the bottom face 52 of the plaster mold 50 while the inner diameter is reduced, and the top of the bottom jaw part 56 is increased. Climbed up.

Before the entrance side end face 11 is separated from the bottom jaw portion 56, moisture is released from the inlet part 10 to the plaster mold 50 and the rigidity of the clay is secured, so that the entrance side end face 11 is bottomed. Even if it leaves from 52, the circular shape and the top view of the inlet side end surface 11 are maintained.

In fact, since moisture is quickly absorbed from the inlet 10 molded from clay into the plaster mold 50, the inlet 10 end face 11 of the inlet 10 from the bottom 52 in two to three minutes. Departures will occur.

Next, the drying step (S5) is performed.

The drying step (S5) is a step of drying after separating the intermediate inlet portion 10 from which the bottom portion 52 of the plaster mold 50 is separated from the plaster mold 50 in the separation molding step S4. .

In the drying step (S5), after removing the inlet portion 10 from the plaster mold 50, as shown in Figure 1, the inlet side end surface 11 is dried up to the top.

After the drying step (S5), the first firing step of firing at first by applying a high temperature. Thereafter, the step of coupling the inlet portion 10 that has undergone the primary firing step to the upper stepped portion 34 of the upper end of the body portion 30 is further performed.

On the other hand, in the present embodiment, the upper end portion of the porcelain body portion 30, a stepped body portion upper step portion 34 is formed, the lower end portion of the porcelain inlet portion 10, the upper end portion of the body portion 30 Inlet portion lower stepped portion 14, which is in shape to interlock with body portion upper stepped portion 34 formed in it, is formed.

As a result, a step forming portion 54 protruding from the side surface upper end portion of the inner space of the plaster mold 50 so as to form the lower step portion 14 of the entrance portion is provided.

After the lower step portion 14 of the inlet portion 10 is positioned on the upper step portion 34 of the body portion, the inlet portion 10 and the body portion 30 go through an oiling step of applying glaze together. After the oiling step, a second firing step of applying heat at a high temperature is performed to complete the manufacture of the porcelain inlet portion 10 and to be coupled to the body portion 30 at the same time.

However, the specific order or method of coupling the inlet portion 10 to the upper end of the body portion 30 can be changed according to the embodiment.

Hereinafter, the operation and effect on the method of manufacturing the ceramic inlet portion of the present embodiment.

According to the method of manufacturing the porcelain inlet portion having the above-described configuration, since the bottom jaw portion 56 is provided on the bottom surface 52 of the plaster mold 50, the inlet portion may have an accurate circle shape, 11) there is an advantage that the flatness of the upper surface can be secured.

The clay porcelain inlet formed after being filled in the plaster mold 50 is dehydrated by the plaster mold and shrinks even when shrinkage occurs, thereby being caught by the bottom jaw 56 of the plaster mold 50 to the bottom surface ( 52) can withstand without falling off. At this time, the rigidity of the porcelain inlet portion is secured to some extent, even after the inlet side end surface of the inlet portion is separated from the bottom surface 52, the inlet portion is well maintained, and the flat state can be maintained as it is.

In addition, in manufacturing the porcelain inlet portion, because the porcelain inlet portion is manufactured in the up and down direction inverted on the plaster frame 50, there is an advantage that the flatness of the inlet side cross section of the inlet portion can be maintained.

In addition, since the porcelain inlet is made separately and coupled to the body portion, if only the coupling portion that can be coupled to the upper end of the body portion, there is an advantage that can be coupled to any shape of the body portion.

Claims

A body portion having a receiving space therein, and coupled to the upper portion of the body portion and a screw portion formed on the outer surface thereof, the inlet side cross section, which is the upper surface thereof, may be screwed to the flat porcelain inlet portion and the screw portion of the inlet portion. As a method of manufacturing the porcelain inlet portion in a porcelain set composed of a porcelain stopper made of porcelain material formed on its inner side,

A bottom jaw having an inner space corresponding to an outer shape of a state in which the porcelain inlet part is turned upside down and protruding upward from the inner wall by a length corresponding to the transverse thickness of the porcelain inlet part; A plaster mold preparation step of preparing a plaster mold having a portion;

A plastic clay input step of injecting a plastic clay having a moldable viscosity into the inner space of the plaster mold;

An intermediate step inlet molding step of molding the clay located inside the plaster mold by a molding machine having a head which moves up and down simultaneously with rotation, and forming the intermediate step inlet;

The intermediate stage inlet part, as the moisture contained in the inside is absorbed by the gypsum mold and shrinks the entire volume, the inlet-side cross-section is separated from the bottom surface of the gypsum mold and separated from the top of the bottom jaw portion step; And

And a drying step of separating an intermediate step inlet part from which the bottom surface of the gypsum mold is separated from the gypsum mold in the release molding step, and then drying the gypsum mold.
The method of claim 1,

The bottom jaw portion, the porcelain inlet manufacturing method, characterized in that protruding from the bottom surface of the plaster frame to 0.5mm or more and 1.5mm or less.
The method of claim 2,

The bottom jaw portion, porcelain inlet portion manufacturing method, characterized in that formed by protruding 1mm from the bottom surface of the plaster frame.
The method of claim 2,

The bottom jaw portion, the porcelain inlet manufacturing method, characterized in that the disk shape protruding from the bottom surface of the plaster frame to 0.5mm or more and 1.5mm or less.
The method of claim 1,

On the upper end of the body portion of the ceramic set, a staircase-shaped upper end step portion is formed,

At the lower end of the porcelain inlet part, the lower part of the inlet part is formed to engage with the upper part of the body part formed on the upper part of the body part.

At the top of the side of the inner space of the plaster frame, a method for manufacturing a porcelain inlet, characterized in that the step forming portion protruding so that the bottom step of the inlet is formed.
The method of claim 1,

The outer surface of the bottom jaw portion is inclined toward the center, characterized in that the ceramic inlet portion manufacturing method.