JPH0872031A - Slip casting method for sanitation fixture - Google Patents

Abstract

PURPOSE: To contrive to form a sanitation fixture having a few mold structure by a method wherein respective sectional formed bodies are slip-cast separately without employing split molds so as to integrally form the sanitation fixture by bonding both the demolded sectional formed bodies to each other in order to eliminate split mold members. CONSTITUTION: A body part formed body 10 is formed with a forming mold 11 for forming a body part consisting of a top mold 12 and a bottom mold 13. After the completion of forming, the body part formed body 10 firstly separates a bottom mold 13 therefrom and, under the state being held in a top mold 12, is transferred onto the demolding mating surface of a carrying truck and, after that, placed on a receiving plate 14. Apart from the forming work of the body part formed body 10, a rim part formed body 20 is formed with a forming mold 21 for forming a rim part consisting of a top mold 22 and a bottom mold 23. After that, the rim part formed body 20 separates a bottom mold 23 therefrom and, under the state being held by the top mold 22, is transferred onto a demolding carrying truck. Next, the rim part formed body is stripped from the top mold 22 onto a receiving plate 24. After that, the rim part formed body 20 is rotated by 90 degrees on a working line so as to coincide its posture with the posture of the body part formed body. After that, the body part formed body 10 and the rim part formed body 11 are made into an integral body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting method for sanitary ware such as stall urinals and washbasins.

[0002]

2. Description of the Related Art Stall Urinal A, which is one of sanitary ware
As shown in FIG. 6, the sleeve parts are provided on both left and right sides of the ball part c.
b, b, a back part e on the back part thereof, a drain part d on the lower part thereof, a mirror surface part a on the upper part thereof, and a bottom part f on the lower end of the drain part d. are doing.

Conventionally, when molding the above-mentioned stall urinal A, the mirror surface portion a and the sleeve portion of the stall urinal A are molded.
b, b, a ball part c, a first mold member 2 for molding the front part of the drainage part d, a second mold member 3 for molding a rear part e of the stall urinal A, and a stall urinal A Third mold member 4 forming floor surface part f, split mold member (core mold) 5,7,8 forming inner surface part of drainage part d, and split mold member forming drainage port part of drainage part d (Core type) 6 is combined with each other as shown in FIGS. 7 and 8 to form a casting mold 1, and sludge is cast into the casting mold 1 to form the green body molding 9 of the stall urinal A. It was molded.

[0004]

However, in the above-described molding method, a plurality of split mold members 5, 6, 7, 8 are formed for each molding cycle.
Need to be manually set on the first mold member 2 before the slurry casting, or after the molding, the split mold members 5, 6, 7, 8 must be released from the green body molded body 9 one by one. However, it takes time and the molding efficiency is poor.

Further, when the split mold members 5, 6, 7, 8 are automatically set or offset, the structure of the molding device becomes complicated and the cost becomes high.

Further, when the split mold members 5, 6, 7, 8 are set on the first mold member 2, the mold fitting surface is easily worn or damaged, and the life of the mold is short. In addition, during casting of sludge, the sludge enters the mold mating surface and burrs are generated on the green body molded body 9, causing the surface of the molded body 9 to be uneven, and in order to eliminate it, care is required in a later step. , The work load increases.

The present invention can solve the above-mentioned problems, that is, the split mold member can be eliminated and the sanitary ware can be molded with a small mold structure, and the device structure of the molding device can be simplified. It is an object of the present invention to provide a method for manufacturing a sanitary ware that can reduce the work of servicing the green body after demolding.

[0008]

According to the present invention, there is provided a sanitary ware green body formed body comprising a vertical plate-shaped portion and a horizontal bowl portion connected to one end of the vertical plate-shaped portion. It consists of a split molded body for molding and a split molded body for horizontal bowl part molding. Each split molded body is cast separately without using a split mold, and then the two split molded bodies that have been released from the mold are joined and integrated. The present invention relates to a cast molding method for sanitary ware characterized by molding.

According to the present invention, when the sanitary ware is a stall urinal, the body part forming the mirror surface part, the ball part, the sleeve part and the back part of the stall urinal and the lower part of the stall urinal are provided. A drainage part having a protruding shape and a rim part molded body forming the floor surface part are separately cast-molded, and thereafter,
The present invention relates to a cast molding method for sanitary ware, characterized in that a body molding and a rim molding are joined and integrated to form a green body molding.

According to the present invention, in the above-mentioned casting method for sanitary ware, the joint surfaces of the body forming body and the rim forming body are formed in the vicinity of the lower base end portion of the sleeve portion and the lower base end portion of the back surface portion. It is also characterized in that it is provided along the line connecting with the neighborhood.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the accompanying drawings (FIG. 1). In this example, the green body molded body 9 is the raw body molded body of the stall urinal A shown in FIG.

As is apparent from FIG. 1 (f), the green body molded body 9 has a body molded body 10 as a vertical plate-shaped molded body split molded body and a horizontal bowl shaped molded body split molded body 10. It is composed of a divided molded body with the rim molded body 20.

The body molding 10 has a molding surface capable of molding the mirror surface portion a, the ball portion c, the sleeve portion b and the rear surface portion e of the stall urinal A shown in FIG.

On the other hand, the rim portion molded body 20 has a molding surface capable of molding the drainage portion d and the floor surface portion f each having a shape projecting to the lower portion of the stall urinal A shown in FIG.

Further, as shown in FIG. 1 (f), the joint surface 30 between the body forming body 10 and the rim forming body 20 has a lower base end portion of the sleeve portion b and a lower base end portion of the rear surface portion e. It is provided along the line connecting the area and the vicinity.

According to the present invention, the body molding 10 and the rim molding 20 described above are first molded separately, and then the moldings 10 and 20 are integrated to produce the stall urinal A. The method is characterized by a method of molding the green body 9. Hereinafter, the molding method will be specifically described.

First, as shown in FIG. 1 (a), a body forming body 10 is formed by using a forming die 11 for forming a body which is composed of an upper die 12 and a lower die 13. After the completion of molding, the body molded body 10 first releases the lower mold 13, holds the body molded body 10 in the mold of the upper mold 12, and transfers it onto the demolding surface of the carrier. , Then the back plate
Place it on 14 (Fig. 1 (b)).

Separately from the above-mentioned forming work of the body forming body 10, as shown in FIG. 1 (c), a forming die 21 for forming a rim portion composed of an upper die 22 and a lower die 23 is used. The molded part 20 is molded. Thereafter, the lower die 23 is released, the rim portion molded body 20 is held by the upper die 22 and transferred onto a carrier truck for demolding, and then demolded on the receiving plate 24 (FIG. 1). (d)). After that, the rim molded body 20 is turned 90 degrees on the processing line to match the posture with the body molded body 10 and placed on the receiving plate 25 (FIG. 1).
(e)).

Thereafter, as shown in FIGS. 1 (f) and 1 (g), the rim molded body 20 is lifted, transferred and bonded onto the body molded body 10, and the body molded body 10 and the rim molded body are molded. The body 11 and the raw body molded body 9 of the stall urinal A are molded by integrating with the body 11.

As is apparent from the above molding method, the first characteristic of the molding method of the stall urinal A according to this embodiment is that the concave portion peculiar to the stall urinal A, which is conventionally formed by the split mold, is formed in the main body. So that it can be created with a mold,
The point is that the body molded body 10 and the rim portion molded body 20 are divided into two pieces. That is, as shown in FIG. 1, the green body molded body 9 is
A long U-shaped body 10 having a wall mounting surface and a rim body 20 having a floor mounting surface and forming a trap and a cleaning surface around the trap are separated by a joint surface 30. It will be divided and molded separately.

The second characteristic is the position of the above-mentioned joining surface 30. As shown in FIG. 1 (f), the joint surface 30 between the body molded body 10 and the rim molded body 20 is formed in the vicinity of the lower base end portion of the sleeve portion b and the lower base end portion of the back surface portion e. By providing along the connecting line, the green body molded body 9 can be molded with only two pieces without dividing it into accessory articles other than the rim portion and the body portion, and it is possible to reduce the accessory component bonding step in the subsequent step. . Moreover, the mold is the simplest split mold for both body and rim molding.
It becomes 11 and 21.

The third feature is that the body molding 10 and the rim molding 20 have the same demolding direction in the vertical direction, so that the postures of the moldings 10 and 20 in the casting process differ by 90 degrees. .
As shown in FIG. 1 (a), since the body part 10 has a long shape, in consideration of the shape retention and conveyance stability of the green body after demolding,
The green body is laid down and placed in the mold with the wall mounting surface horizontal, while the rim part molded body 20 has a trap part and a bottom-shaped recess, as shown in FIG. 1 (c). In order to be able to remove the mold in the vertical direction, the green body is placed inside the mold with the bottom face up.

Due to the above three characteristics, the molding equipment for manufacturing the stall urinal A is only a molding apparatus having a simple equipment structure of two divisions in the upper and lower parts, and automation is extremely easy.

That is, in the present embodiment, the green body molded body 2 is
Since it is divided into pieces, two molding machines, one for forming the body and one for forming the rim, are required, but the equipment structure can be simplified.
Since the split mold is used, the equipment cost of the molding equipment is equal to or less than that of the conventional 3-split mold, and there is no need for demolding, returning, positioning, and mold assembly equipment for the split mold after molding. It can realize strong equipment.

Further, the durability of the molding die is greatly improved, the die cost is reduced, and the split die mating surface is free from humming, so that the green base quality is improved and the finishing work amount can be reduced.

Further, since the molding process can be largely automated, the productivity of the stall urinal A can be dramatically improved.

2 and 3 show a washbasin B having a shape similar to that of the stall urinal A described above.

In the conventional molding process of the washbasin B, a large number of split molds have been required for molding the green body molding, but by performing the same steps as those shown in FIG. The body can be molded easily and inexpensively.

Also in this case, since the green body molded body is divided into two pieces, two molding machines are required. However, since a two-division mold that can simplify the equipment structure is used, the molding apparatus The equipment cost is equal to or less than that of the conventional three-division type, and there is no need for demolding, returning, positioning, and mold assembling equipment after molding, and it is possible to realize equipment that is inexpensive and resistant to breakdown.

Further, the durability of the molding die is greatly improved, the die cost is reduced, the split die mating surface is not hampered, the raw green material quality is improved, and the finishing work amount can be reduced.

Further, since the molding process can be largely automated, the productivity of the washbasin B can be dramatically improved.

FIG. 4 and FIG. 5 show a washbasin C which is not similar in shape to the stall urinal A described above, but which cannot be integrally formed in the prior art without using a split mold on the ball surface.

Also in the forming operation of the wash basin C, the green body formed body can be formed easily and inexpensively by performing the cast molding in the steps shown in FIG.

Also in this case, since the green body molded body is divided into two pieces, two molding machines are required. However, since a two-division mold that can simplify the equipment structure is used, the molding apparatus The equipment cost is equal to or less than that of the conventional three-division type, and there is no need for demolding, returning, positioning, and mold assembling equipment after molding, and it is possible to realize equipment that is inexpensive and resistant to breakdown.

In addition, the durability of the molding die is greatly improved, the die cost is reduced, the split die mating surface is free from humming, and the green base quality is improved, and the finishing work amount can be reduced.

Further, since the molding process can be largely automated, the productivity of the washbasin C can be dramatically improved.

The mold releasing direction of the green body molded body is not limited to the vertical direction, but may be the horizontal direction or the oblique direction depending on the shape.

[0038]

As described above, according to the present invention, the greenware molded body of the sanitary ware comprising the vertical plate-shaped portion and the horizontal bowl portion connected to one end of the vertical plate-shaped portion is formed into the vertical plate-shaped body. It consists of a split molded body for partial molding and a split molded body for horizontal bowl part molding, each split molded body is separately cast-molded without using a split mold, and then the two split molded bodies that have been demolded are joined together. It is supposed to be integrally molded.

By eliminating the split mold in this way, it becomes possible to mold sanitary ware such as stall urinals and washbasins with a small mold configuration, and the structure of the molding device can be simplified and manufactured at low cost. It is also possible to automate the molding device.

Further, since the split mold is not used, burrs do not occur on the green body, the load of polishing work on the product surface can be reduced, and the life of the mold can be extended.

Further, when the sanitary ware is a stall urinal or washbasin, the joints between the body molded body and the rim molded body are formed near the lower base end of the sleeve and near the lower base end of the back surface. By providing along the line connecting with, it is possible to facilitate automation of the above-described molding apparatus.

[Brief description of drawings] [Explanation of symbols]

FIG. 1 is a process explanatory diagram of a cast molding method for a sanitary ware according to the present invention when the sanitary ware is a stall urinal.

FIG. 2 is a front view when the sanitary ware that can be molded by the casting method according to the present invention is a washbasin.

3 is a cross-sectional view taken along the line I-I of FIG.

FIG. 4 is a front view when the sanitary ware that can be molded by the casting method according to the present invention is a washbasin.

5 is a cross-sectional view taken along the line II-II of FIG.

FIG. 6 is a perspective view of a stall urinal, which is one of sanitary ware.

FIG. 7 is an exploded perspective view of a molding die used in a conventional cast molding method for sanitary ware.

FIG. 8 is a sectional side view of the molding die.

[Explanation of symbols]

 A stall urinal B washbasin C washbasin 9 green body molded body 10 body molded body 20 rim molded body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Hiragashi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture Totoki Kikai Co., Ltd. (72) Inventor Kiyokazu Tajima 2 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka 1st-1st Totoki Equipment Co., Ltd.

Claims (3)

[Claims] 1. A sanitary ware green body formed body comprising a vertical plate-shaped portion and a horizontal bowl portion continuously provided at one end of the vertical plate-shaped portion,
It is composed of a vertical plate-shaped part molding split product and a horizontal bowl part molding split molding product, and each split molding product is separately cast-molded without using a split mold. A cast molding method for sanitary ware, which comprises joining and integrally molding. 2. The sanitary ware is a stall urinal (A), and the stall urinal (A) has a mirror surface portion (a), a ball portion (c) and a sleeve portion.
(b) and the body part (10) that constitutes the back part (e), and the drainage part that has a shape protruding to the bottom of the stall urinal (A)
(d) and the rim portion molded body (20) constituting the floor surface portion (f),
Body cast (10) that was cast separately and then demolded
A cast molding method for sanitary ware, characterized in that the green body molded body (9) is molded by joining the rim portion molded body (20) together. 3. The joint surface (30) between the body molded body (10) and the rim molded body (20) is formed in the vicinity of the lower base end of the sleeve (b) and the lower base end of the back surface (e). The casting method for sanitary ware according to claim 2, wherein the method is provided along a line connecting the vicinity of the portion.