DE3005278A1 - DEVICE FOR PRODUCING SANITARY CERAMIC PRODUCTS - Google Patents

Abstract

1. Apparatus for producing sanitary ceramic products, in particular wash basins, water closet basins, bidets, shelves, pedestals or the like, by means of moulds made of waterabsorbing material, preferably plaster of Paris, and each consisting of two mould parts (1, 2 ; 14, 15) which have a vertical spacing and which are laid adjacent to each other on a casting bench (4) and can be held together in a sealed manner in pairs, and can be connected for bottom filling purposes to a slip container by means of a casting material conduit (10) which can be shut off, characterized in that each mould part (1, 2 ; 14, 15) comprises below its hollow compartment (5) an approximately horizontally extending through opening (8 ; 8a) which is formed between the vertical end surfaces of the mould part and is connected to the hollow compartment (5) by a communication channel (11 ; 11a) and which when the moulds are pushed together becomes connected in a sealed manner both to the opening (8 ; 8a) in the other mould part (2, 1 ; 15, 14) pertaining to the respective mould, and also to the opening (8 ; 8a) in the adjoining mould part (2, 1 ; 15, 14) of the neighbouring mould, to form a casting material conduit.

Description

PATENT LAWYERS

DIPL.-ING. ALEX STENGER

Kaiser-Friedrich-Ring 70 DIPL.-ING. WOLFRAM WATZKE

D-4000 DÜSSELDORF 11 DIPL.-ING. H EINZ J. RING

Our time: 20 4 09 "b ' Date: February 12, 1989

"3'SRAMAG" Keramische Werke Aktiengesellschaft, Sandstrasse 17,

4030 Ratingen 1

Device for manufacturing sanitary ware products

The invention relates to a device for the manufacture of sanitary ware products, in particular wash basins, lavatory basins, Sink seats, shelves or the like. By means of XV as s he on taking em material, preferably plaster of paris, manufactured Forms that each consist of at least two forrate parts having a vertical separation, which are placed next to each other on a The casting bench is parked and can be held together in pairs to form a seal, and which can be connected to a slip container by means of a lockable pouring line for increasing filling.

Devices of the type described above are known. They include a pouring pipe installed in a fixed location below the pouring bench, which is connected to each mold via a detachable connecting hose, so that all molds can be used at the same time be filled with slip rising from the slip container via their connecting hose through the common pouring line can. As soon as the shards with the desired wall thickness have formed in the shapes, the excess slip will through

- 2 -

13ÖÖ34 / 0286

Telephone (0211) 57 2131 ■ Telex: 85 88429 Telegram address: Rheinpatent Postsdleckkonto Cologne (BLZ 370 100 50) 227610-503

BATH ORIGINAL

the connecting hoses are drained into the casting line. This excess slip becomes in turn the slip container fed to be processed at a later point in time to x ^ ground.

So that the casting line and the connecting hoses leading to a mold consisting of two mold parts can be used continuously, it is necessary to regularly clean at least these parts of the casting system from slurry residues. For this purpose, a flushing line is provided parallel to the pouring line. This flushing line has connecting pieces for all connecting hoses. After the excess slip has been removed, the connecting hoses are removed from the molds with their overhead ends and placed on the nozzle of the flushing line. In this way, all connection hoses and the pouring pipe can be rinsed with water taken from the water network. This water, contaminated with slurry residues, is fed to a sump. Before each casting process, the connecting hoses must then be removed from the flushing line and reattached to the molds.

This known type of casting device not only requires a considerable amount of work for the repositioning of the connecting hoses , but has a loss of slip due to the constant flushing of the connecting hoses and the pouring line Episode. However, this loss not only removes tons of material from its intended purpose, it also pollutes it large amounts of water that can only be discharged via a sewage treatment plant and thus represent a considerable environmental burden.

The invention is based on the object of the known device to be further developed in such a way that material losses and environmental pollution are avoided with less work and equipment will.

The solution to this problem by the invention is thereby characterized that each molded part below its hollow

-s-

in the room an approximately horizontal one and between the vertical ones Stiriif 1 "chen of the molded part continuously formed Has opening which is connected to the cavity of the mold via at least one connecting channel and which is pushed together Shapes both with the opening in the other molded part belonging to the respective shape and with the opening in the adjoining one Molded part of the adjacent mold is connected in a sealed manner as a pouring line.

With this proposal of the invention, the casting line, which is arranged below the casting bench in the known embodiment, is carried out replaces the opening formed in each molded part. This not only eliminates the need for the device according to the invention actual casting line, but also all connecting hoses, since these are replaced by at least one connecting channel per shape. Since two moldings are used to generate Form the cavity serving the sanitary ware, one connecting channel is sufficient for each shape around the one from the slip container slip entering the interconnected openings by gravity from below into the cavities of the Let shapes flow in. The excess slip is also drawn off after the shards have formed via the connecting channels and the openings connected to one another to form a casting line, so that in this respect no changes to the process are made the known state of the art.

Another major advantage of the training according to the invention consists in the fact that a flushing process is unnecessary. The one remaining in the openings of the molded parts and in the connecting channels Slurry solidifies because of its water-absorbing properties Material of the molded parts as well as the shards. After opening the molds and removing the shards, these residues of slurry can be removed can thus be removed from the molded parts in a simple manner. Since the solidified slip residues within the molded parts are not contaminated exposed, they can come back without difficulty

130034/0283

processed and fed to a new processing process. This way you won't just lose the expensive one Material, but also the need for a rinsing process, which on the one hand consumes a considerable amount of water and on the other hand pollutes the environment.

According to a further feature of the invention, each foremost molded part of the molds located on a casting bench a pipe socket protruding from the free end face for connection to a pouring line piece leading to the slip container on. In this way there is a simple connection of the molds containing the casting line to those for the slip container leading line possible.

According to the invention, each has at least two molded parts Form at least one air duct through which air is drawn into the draining air during the removal of the excess slip The cavity of the mold is pressed in order to avoid the creation of a negative pressure. Instead of individual air connections can, according to a further feature of the invention, the air ducts of all molded parts when the molds are pushed together Form continuous air line, so that the invention not only the casting line, but also the air line through accordingly Openings formed in the molded parts replaced those when pushed together Forms each form a continuous line.

If with the device according to the invention in any form simultaneously Several sanitary ware products are to be manufactured by placing at least two separate cavities are designed in any shape, is proposed with a development according to the invention that between the vertical end faces each molded part continuously formed opening to be arranged below and between the two cavities and with these to be connected by one connection channel each. This pouring line formed between the two cavities can when removing the excess slip after the formation of the

- 5 130034/0286

Shards can also be used for the drainage of the excess slip, if for each of each other separate cavities an air connection is provided through which air flows into the cavity during emptying.

In order to avoid separate air connections per cavity, each cavity can be used in a further development of the invention Outer side of the molded part inclined and connected at its deepest point to an outlet channel via a channel piece be, which runs parallel to the opening between the end faces of the molded part and when pushed together Form each a discharge line for the excess Forms slip. In this case, the line arranged continuously between the cavities is used as an air line, so that separate air connections are avoided. Through this There is also no need to clean the separate air connections, which in the known prior art requires additional work means. The further development according to the invention not only increases productivity, but also increases it at the same time the workload is simplified.

In the drawing are two embodiments of the invention Device shown, namely show:

Fig. 1 is a longitudinal section through a first embodiment of the device for producing wash basins, wherein. three two-part forms are shown;

FIG. 2 shows a section along the section line II-II in FIG. 1 when the mold is completely filled with slip;

5 shows a section corresponding to FIG. 2 after formation of the body while the excess slip flows out and

4 shows the sectional views according to FIGS. 2 and corresponding section through a second embodiment for the simultaneous production of two wash basins per shape.

130034 / 028S

■ -V-

The molds used in both exemplary embodiments for the manufacture of wash basins each consist of two porate parts 1 and 2 with a vertical separation, which are placed side by side in the longitudinal direction of a casting bench 3 and k so that they form cavities 5 in pairs corresponding to the shape of the product to be manufactured. While in the embodiment according to FIGS. 1 to 3 one wash basin is produced per mold, the molded parts according to FIG. 4, which are held together in a sealing manner, form two cavities 5j so that two wash basins are produced simultaneously per mold.

The omitted in Fig. 1 for the sake of clarity, However, in Figs. 2 and 3 shown casting bench 3 comprises a relative to the base 3a for the purpose of changing the inclination adjustable top 3b. At this top 3b are at illustrated embodiment three treads for rollers 6, which are arranged on the underside of a support plate 7. The molded parts 1 stand on this support plate 7 and 2, so that they can be moved particularly easily in the longitudinal direction of the casting bench 3.

Each molded part 1 or 2 has below its cavity 5 an approximately horizontal and between the vertical End faces of the molded part 1 and 2, respectively, have continuously formed opening 8, which when the molds are pushed together with the opening 8 in the other mold part 2 or 1 belonging to the respective mold as well as with the opening 8 in the adjoining one Molded part of the adjacent mold is connected in a sealed manner. This can be seen clearly from FIG. 1.

This illustration shows that the openings 8 formed below the respective cavity 5 form a continuous pouring line form, with the foremost molded part 1 of the molds located on the casting bench 3 one from the free Has the end face protruding pipe socket 9, through which the formed in the molded parts 1 and 2 through the openings 8 Casting line is connected to a pouring line piece 10 leading to the slip container, not shown. Each from the

130034/0286 - 7 -

two Pormteile 1 and 2 formed form has a connecting channel 11, through which the opening 8 is connected to the cavity 5.

Through the openings 8, which form the casting line when the molds are held together in a sealed manner, the pipe socket 9 and the casting line piece 10 pushes slip from the upstanding slip container into the cavities 5 of the molds, wherein this slip is introduced rising into the cavities 5 via the connecting channels 11. When filling the cavities 5 with slip, the air in the cavities 5 can escape through the vertical parting line, each between the two molded parts 1 and 2 is present. This vertical separation has one when the forms are pushed together Gap width so that air can indeed escape, but that the rising slip closes the joint, so that it flows out of the slip is avoided.

As soon as the fragment S indicated in Fig. 3 has formed, because the water-absorbing material of the two mold parts 1 and 2 causes the slip to solidify, the excess becomes Slurry withdrawn. In the exemplary embodiment according to FIGS. 1 to 3, this takes place through the openings 8 formed through line. For this purpose, this line is arranged below the cavity 5. So that a complete Drainage of the excess slip is ensured, the mold parts 1 and 2 are inclined according to FIGS. 2 and J3, namely by an inclination of the upper part J5b in relation to the underframe Ja of the casting bench 3

In order to ensure that the excess slip flows out completely and as quickly as possible, a small amount of water is used Air under pressure is introduced into the cavities 5 during the evacuation process. This can be done, for example, by individual Air connections are made, which lead the air from an air line laid parallel to the casting bench 3 into each individual mold. In the embodiment of FIGS. 1 and 2 are such

- 8 130034/0286

- ar-

individual air connections replaced by an air duct 12, which is formed parallel to the opening 8 in each molded part 1 and 2 and one when the molds are pushed together continuous air duct forms. In this embodiment, which can be seen in FIGS. 2 and 3, one is therefore also omitted additional air line, since this is replaced by the air channels 12 formed in the molded parts 1 and 2. Pro form one of these air ducts 12 is connected to the cavity 5 by a connecting line 13.

By the embodiment shown in FIGS There is therefore no need for one laid parallel to the casting bench 3 Pouring line as well as an air line running parallel to it, so that there is a reduction in the technical Expense for the casting system results. In addition to this structural simplification, however, there is still a considerable one Simplification of the process sequence and workload, because the rinsing of the pouring line and the connection of the air connections omitted. Which are in the openings 8 and possibly Air ducts 12 forming fragments can after opening the molds and removing the one that forms a wash basin Shard are removed from the molded parts 1 and 2. Since these solidified slurry residues within the openings 8 and possibly air ducts 12 are not exposed to pollution, they allow reprocessing without difficulty, so that they can be fed to a new process and a loss of the expensive material is avoided. At the same time, this results in a considerable simplification of the process sequence. About an education To avoid a shard in the connecting channels 11 and connecting lines 13, these can be made of plastic or metal existing pipe pieces are formed in which no broken pieces are due to the lack of water absorption forms.

In the embodiment shown in FIGS

- 9 -130034/0288

it is also possible to supply the slip through the line formed by the air channels 12 and the excess Slurry after formation of the body through the openings 8 line formed. The only line for the supply of compressed air, however, comes through the air ducts 12 formed leadership in question.

In the embodiment of FIG. 4, the includes by two Moldings 14 and 15 formed form two cavities 5 * with each of which a sink is created. This means that two wash basins are produced at the same time for each mold.

The cavities 5 are on the outside of the molded parts 14 and 15 inclined, so that the support plate 7a, which is in turn supported by rollers 6a on the casting bench 4, is oriented essentially horizontally can be.

The openings 8a formed continuously between the vertical end faces of each molded part 14 and 15, which the Form casting line are arranged below and between the two cavities 5 and with these cavities 5 through each connected to a connecting channel 11a, so that both cavities 5 can be filled with slurry at the same time. At its lowest point, each cavity 5 inclined towards the outside of the molded part 14 or 15 is via a channel piece 16 connected to an outlet channel I7. Each outlet channel I7 runs parallel to the opening 8a between the end faces of the respective molded part 14 or 15 and forms when pushed together Moldings 14 and I5 an outlet line for the excess slip.

In the embodiment shown in FIG. 4, the slip is thus supplied via a central pouring line, which is formed by the openings 8a. Pouring out the excess Schlickers happens through two discharge lines, which are formed by the outlet channels 17. The openings 8a also form the air line through which during the

- 10 130034/0286

- Kf-

Compressed air is supplied to discharge the excess slip can be. In the exemplary embodiment according to FIG. 4, however, it is also possible that the outlet channels 17 formed lines to be used as a pouring line.

- 11 130034/0286

- 13 -

List of reference numerals:

S. shards 1 Molded part 2 Molded part 3 Pouring bench 3a Underframe 3b Top 4th Pouring bench 5 cavity 6th role 6a role 7th Support plate 7a Support plate 8th opening 8a opening 9 Pipe socket 10 Casting line piece 11 Connection channel 11a Connection channel 12th Air duct 13th Connecting line 14th Molded part 15th Molded part 16 Duct piece 17th Outlet channel

130034/0286

Claims (4)

Patent claims: 1. Device for producing sanitary ware products, in particular wash basins, lavatory basins, wash basins, shelves, columns or the like., By means of forms made of water-absorbent material, preferably plaster, each consisting of at least two molded parts having a vertical separation, which are next to each other are parked in a pouring bench and can be held together in pairs to form a seal, and which can be connected to a slip container by means of a lockable pouring line for rising ßefilling, characterized in that each molded part (1, 2; 14, 15) below its cavity (5) has an approximately horizontally extending and has continuously formed opening (ui 8a) between the vertical end faces of the molded part, which is connected to the cavity (5) via a connecting channel (11; lla) and which, when the molds are pushed together, to the opening (8; 8a) to the respective mold belonging other molded part (2, 1; 15 * 14) as well as with the opening ng (8; 8a) in the adjoining molded part (2, 1; 15, 14) of the adjacent mold is connected in a sealed manner as a pouring line. 2. Device according to claim 1, characterized in that the foremost molded part (1; 14) of the molds located on a casting bench (s>; 4) has a pipe socket (9) protruding from the free end face for connection to a casting line piece leading to the slip container (10). 5. Apparatus according to claim 1 or 2, characterized in that that each mold consisting of at least two mold parts (1, 2; 14, I5) has at least one air duct. 4. Device according to claims 1 to 3, characterized in that that the air channels (12) of all mold parts (1, 2) form a continuous air line when the molds are pushed together. - 12 - 13ÖÖ34 / 0286 Device according to at least one of Claims 1 to 3 with at least two separate cavities in each mold for the simultaneous production of several products per shape, characterized in that the between the vertical end faces of each molded part (14, 15) continuously formed opening (8a) arranged below and between the two cavities (5) and with these through a connecting channel (lla) connected is. Device according to claim 5> characterized in that each cavity (5) to the outside of Forrnteils (14, 15) inclined and connected at its deepest point by a channel section (16) with an outlet channel (17), the respectively parallel to the opening ( 8a) runs between the end faces of the molded part (14, 15) and forms an outlet line for the excess slip when the molds are pushed together. - 13 13ÖÖ34 / 0286