JPH0585325B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an apparatus for automatically attaching and detaching a slurry supply port to and from a mold for casting ceramic products such as sanitary ware.

(Prior art) The method for forming sanitary ware, such as a wash basin, is as follows:
Conventionally, a slurry casting method has been generally used. FIG. 7 shows the specific device. In the figure, reference numeral 100 indicates plaster molds that are successively arranged in close contact with each other, and each has a molding concave shape inside.

102 is a slurry supply pipe that extends in the direction in which the plaster molds 100 are lined up, and from which a number of branch hoses 10 are connected.
4 is extending.

In this molding device, the tip of the branch hose 104 was connected to an injection port formed downward at the bottom of each plaster mold 100, and the slurry of the slurry supply pipe 102 was formed inside these branch hoses 104 and each plaster mold 100. It is adapted to be fed into the respective molding recess through the passage. The slurry supplied and injected into the molding recess in this way is dehydrated and solidified at the portion in contact with the inner surface of the molding recess, and the remaining slurry is discharged from the plaster mold 100 through the branch hose 104 again and inside the molding recess. When the plaster mold is decomposed after drying by blowing air into it, a washbasin is obtained as a solidified molded slurry.

(Problem to be Solved by the Invention) In this molding apparatus, the tip of the branch hose 104 is molded into the plaster mold 104 for each molding cycle.
This requires a lot of effort and time, and this is a factor that hinders labor savings and improvements in production efficiency. It was becoming.

(Means for Solving the Problems) The device of the present invention has been devised to solve the above problems, and its gist is that each of the devices formed downward in a plurality of casting molds arranged in a A device that automatically attaches and detaches the tips of a plurality of branch pipes extending from a slurry supply pipe to and from an injection port,
(a) a plurality of spouting ports provided upward at the tips of the plurality of branch pipes; (b) holding the spouting ports in the arrangement direction of the mold at the same intervals as the arrangement spacing of the respective injection ports; (c) an elevating member that moves forward and backward in a direction substantially perpendicular to the up-and-down direction of the elevating member; a driving means for driving;
(e) It has a cam mechanism that is interposed between the elevating member and the retractable member and converts the reciprocating movement of the elevating member into the elevating movement of the elevating member. The purpose is to simultaneously connect or separate the respective injection ports of each mold.

(Operation and Effects of the Invention) As described above, in the device of the present invention, when the advancing/retracting member is moved forward and backward by the driving means such as a cylinder, the elevating member moves up and down, and the plurality of spouts held by the elevating member move up and down at the same time. Alternatively, it may be lowered and connected to or separated from the respective injection ports of each mold.

In other words, the work of attaching and removing the slurry supply port to the mold, which conventionally had to be done manually, is done mechanically and automatically, which reduces the amount of manpower required for this work. At the same time, it becomes possible to automate the process from supplying slurry to the mold to discharging the remaining slurry from the mold after a predetermined period of time, resulting in a dramatic improvement in production efficiency. .

Furthermore, in the device of the present invention, the elevating member is not directly driven up and down by the driving means, but is raised and lowered through the forward and backward movement of the advancing and retracting member. can be added to. Therefore, even if a cylinder or the like is used as the driving means, it is sufficient to use a small one, and the lifting stroke of the lifting member can be accurately controlled.

(Example) Next, an example of the present invention will be described in detail based on the drawings.

In FIG. 1, reference numeral 10 denotes plaster molds (molding molds) arranged in a row, each having a bottom plate 12 as shown in FIG.
4 is provided facing downward. Also, this bottom plate 12
Wheels 16 and 17 are provided on both sides of the frame, and these wheels 16 and 17 roll on rails 20 provided on a side frame 18.

Between these side frames 18, an elevating frame 22 whose main element is a square lumber with a rectangular cross section is arranged in the direction in which the plaster molds 10 are arranged. As shown in FIG. 1, a guide cylinder 23 is fixedly installed on this elevating frame 22, and this guide cylinder 23 is slidably fitted into a guide rod 21 whose position is fixed. It is designed to be guided up and down by the action of the guide rod 21.

This elevating frame 22 has pouring holes 24 arranged at the same pitch as each of the downwardly directed pouring holes 14 of the plaster mold 10.
is installed. These spouts 24 include
The tip of a branch hose 28 extending from the slurry supply pipe 26 is connected, and a convex tapered surface 29 is formed at the upper end of each spout 24, as shown in detail in FIG. This tapered surface 29 is adapted to tightly fit into a corresponding concave tapered surface 30 of the injection port 14.

As clearly shown in FIGS. 4 to 6, a cam plate 32 is provided on the lower surface side of the elevating frame 22 so as to hang down. Each of these cam plates 32 is formed with an inclined cam surface 34 extending in the same direction as the elevating frame 22.

On the other hand, below the elevating frame 22, as shown in FIG. The tip of the rod 44 of the cylinder 42 is fixed to the shaped body 36. Furthermore, a support roller 46 and a roller 48 as a cam follower are attached to the inner surface of each plate-like body 36 in this reciprocating frame 40 in two stages, upper and lower. At the same time, a roller 48 as a cam follower contacts and rolls on the cam surface 34 of the cam plate 32 as the reciprocating frame 40 moves forward and backward.

On the other hand, a shaft 52 is arranged on the opposite side of the reciprocating frame 40 from the cylinder 42, and this shaft 52 is rotatably supported by a support arm 54 and a bearing 56. A plurality of lid opening/closing arms 58 are fixed to this shaft 52 at positions corresponding to the spout 24, and as the lid opening/closing arms 58 rotate, a lid body 60 fixed to the upper end of the lid opening/closing arm 58 opens to the spout 24. The openings 24 are closed or opened. It should be noted that some of these lid opening/closing arms 58 have engaging arms 59.
are integrated. An elongated hole 62 is formed in this engagement arm 59, and a pin 64 fixed to the elevating frame 22 is inserted into the elongated hole 62, so that the shaft 52 rotates in conjunction with the elevating movement of the elevating frame 22. and this shaft 5
2, each lid opening/closing arm 58 is operated to open and close.

Next, the operation of the device of this example will be explained.

The plaster molds 10 arranged in a line are slowly conveyed on the rails 20, and stop advancing when the injection port 14 on the lower side reaches a predetermined position.
When the plaster mold 10 stops advancing, the cylinder 42 is actuated and the reciprocating frame 40 is moved forward. When the advancing/retracting frame 40 is moved forward, a roller 48 as a cam follower attached to its inner surface
contacts the inclined cam surface 34 of the cam plate 32, and lifts the cam plate 32 upward by the cam action. That is, the elevating frame 22 is raised, and as a result, the plurality of injection ports 24 held by the elevating frame 22 are simultaneously raised, and each plaster mold 10 is raised.
It fits closely into the downward facing inlet 14 of the. Note that the lid 60 that originally closed the openings of these spouts 24
The opening of the spout 24 is opened by rotating the lid opening/closing arm 58 clockwise in the figure as the elevating frame 22 rises. That is, when the spout 24 reaches the rising end, those openings are in an open state, and the spout 24 is fitted into the spout 14 and the branch hose 2
8 is connected to the injection port 14 of the plaster mold 10.

When the branch hoses 28 are connected to the respective injection ports 14 of the plaster mold 10 in this way, the slurry sent through the slurry supply pipe 26 is guided into the plaster mold 10 and remains there for a certain period of time. left alone. During this time, the portion of the injected slurry that comes into contact with the inner surface of the recess of the plaster mold 10 is dehydrated and solidified, and is molded into a shape corresponding to the inner surface of the recess.

After a certain period of time has elapsed, the remaining slurry is then discharged to the outside through the same branch hose 28 and slurry supply pipe 26, and at the same time, air is blown into the recesses of the plaster mold 10 to dry the molded body.

When these operations are completed, each plaster mold 10 is carried to the next process, and a new plaster mold 10 is carried to the slurry injection position, that is, the molding station, and the same operations as above are performed again. . These operations are performed one after another, and the slurry is continuously cast.

As described above, according to the device of this example, the slurry supply port can be mechanically and automatically attached to and removed from the injection port 14 of each plaster mold 1. This eliminates work that conventionally had to be done manually, resulting in the effect of further accelerating production speed.

Although the embodiments of the present invention have been described in detail above, the present invention can also be configured in other forms.

For example, in the above example, the cam plate is provided on the elevating member side, and the roller as a cam follower is provided on the advancing/retracting member side, but it is also possible to provide these on opposite sides, and it is also possible to provide these on the opposite sides. It is also possible to raise and lower the elevating member using a different type of cam mechanism.

Furthermore, it is possible to use other drive means, and the present invention can be constructed with various modifications based on the knowledge of those skilled in the art without departing from the spirit thereof.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of an automatic attachment/detachment device for a slurry supply port according to an embodiment of the present invention, FIG. 2 is a partially cutaway sectional view of the same device, and FIG. FIG. 4 is an enlarged sectional view of the main part showing the main part of the figure, and FIG. 4 is a perspective view of the main part of the apparatus. 5 and 6 are front views of the main parts of the device, respectively, and FIG. 7 is an explanatory diagram for explaining the conventional problems. 10: Plaster mold, 14: Inlet, 22: Lifting frame, 24: Outlet, 26: Slurry supply pipe, 28:
Branch hose, 32: cam plate, 34: cam surface, 4
0: forward/backward frame, 42: cylinder, 48: roller.

Claims (1)

[Scope of Claims] 1. A device that automatically attaches and detaches the tips of a plurality of branch pipes extending from a slurry supply pipe to each injection port formed downward in a plurality of cast molds arranged in an array. (a) a plurality of spout ports provided upward at the tips of the plurality of branch pipes; and (b) the spout ports are arranged in the arrangement direction of the mold and at the same interval as the arrangement spacing of each fill port. (c) an elevating member that moves back and forth in a direction substantially perpendicular to the elevating direction of the elevating member; (e) a driving means for driving the advancing/retracting member back and forth;
a cam mechanism that converts the forward/backward movement of the forward/backward member into the vertical movement of the vertical member, and simultaneously connects each spout to the respective injection port of each mold by the vertical movement of the vertical member. Alternatively, an automatic attachment/detachment device for a slurry supply port is characterized in that the slurry supply port is separated.