JPH02233211A - Automatically detaching device for slurry feed port - Google Patents

Abstract

PURPOSE:To omit manual working and to enhance production efficiency by transferring an advancing and retreating member back and forth and vertically moving an elevating member and simultaneously raising or lowering a plurality of discharging ports held thereto and connecting or separating these discharging ports to/from the respective introducing ports of the respective molding molds. CONSTITUTION:The aligned gypsum molds 10 are slowly carried on a rail 20 and advancement is stopped when the introducing ports 14 of the rear surface sides reach the prescribed positions. Then a cylinder 42 is actuated and an advancing and retreating frame 40 is moved forwards. A roller 48 fitted to the inner surface thereof is allowed to abut on the oblique cam face 34 of a cam plate 32 and this cam plate 32 is held upward. Thereby a plurality of introducing ports 24 held on an elevating frame 22 are simultaneously raised and closely stuck and engaged with the downward introducing ports 14 of the respective gypsum molds 10. Then slurry is introduced into the gypsum molds 10 through a slurry feed pipe 26 and the gypsum molds 10 are allowed to stand for a constant time. The parts in contact with the recessed inner faces of the gypsum molds 10 are dehydrated and solidified. The slurry is molded into the shapes corresponding to these recessed inner faces.

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) As a method for molding sanitary ware, such as washbasins, a slurry casting method has conventionally 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 have four molding locations inside.

A slurry supply pipe 102 extends in the direction in which the plaster molds 100 are lined up, from which a number of branch hoses 104 extend.

In this molding device, the tip of the branch hose 104 is connected to an injection port formed downward at the bottom of each plaster mold 100, and the slurry in the slurry supply pipe 102 is formed inside these branch hoses 104 and each plaster mold 1OO. It is designed to be supplied into each molding recess through a passageway formed in the molding cavity. 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) However, in this molding device, it is necessary to attach and detach the tip of the branch hose 104 to and from the plaster mold 100 for each molding cycle, and furthermore, this work has to be done manually by the operator. This work requires a lot of effort and time, and this is a factor that hinders labor saving and improvement of production efficiency.

(Means for Solving the Problem) The device of the present invention has been devised to solve the above problem, and its gist is to form a plurality of casting molds in an array, facing each other. 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, and (a) is provided at the tips of the plurality of branch pipes in two directions. ([+) The spouting spouts are held in the arrangement direction of the mold and at the same spacing as the arrangement spacing of each spouting spout, and the spouting spouts are integrated as it moves up and down. an elevating member that moves up and down; (c) an advancing and retracting member that moves forward and backward in a direction substantially perpendicular to the up and down direction of the elevating and descending member; (2) a drive means that drives the moving member forward and backward; and (e) these elevating and descending members and It has a cam mechanism that is interposed between the members and converts the forward and backward movement of the advancing and retracting member into the up-and-down movement of the elevating member, and the elevating and lowering movement of the elevating member simultaneously connects each spout to the respective injection port of each mold. The goal is to connect or separate them.

(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, thereby reducing the manpower required for this work. At the same time, it becomes possible to automate the work from supplying slurry to the mold to discharging the remaining slurry from the mold after a predetermined period of time has passed, resulting in the effect of dramatically improving 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, a small one is sufficient, and the lifting stroke of the lifting member can be accurately controlled.

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

In FIG. 1, 10 are plaster molds arranged in a row (
As shown in FIG. 2, the mold has a bottom plate 12, and a slurry injection port 14 is provided in the bottom plate 12 facing downward. Also, wheels 16.1 are mounted on both sides of this bottom plate 12.
7 are provided, and these wheels 1 6 '+ 1 7
is adapted to roll on a rail 20 provided on the 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 two plaster molds 10 are lined up. As shown in FIG. 1, a guide tube 23 is fixed to this lifting frame 22, and this guide tube 23 is slidably fitted into a guide rod 21 whose position is fixed. It is guided up and down by the action of the guide rod 2l.

Pour ports 24 are attached to the elevating frame 22 at the same pitch as each of the downwardly directed injection ports 14 of the plaster mold 10. The tip of a branch hose 28 extending from the slurry supply pipe 26 is connected to these spouts 24, and the second end of each spout 24 has a convex shape as shown in detail in FIG. A tapered surface 29 is formed such that the tapered surface 29 fits tightly 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. Rod 44 of cylinder 42 against body 36
The tip is fixed. 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, the roller 48 as a cam follower comes into contact with the cam surface 34 of the cam plate 32 and rolls on the same surface 34 as the reciprocating frame 40 moves back and forth. There is.

On the other hand, a shaft 52 is disposed on the side opposite to the cylinder 42 with respect to the reciprocating frame 40, 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 arms 58 is fixed. is adapted to close or open the opening of the spout 24. Note that some of these lid opening/closing arms 58 are integrally provided with a retaining arm 59. This engagement arm 59 has an elongated hole 62 formed therein, 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. The rotation of the shaft 52 causes each lid opening/closing arm 58 to be opened/closed.

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

The plaster molds 10 arranged in a line are slowly conveyed on the rails 20, and the progress is stopped when the injection port 14 on the lower side reaches a predetermined position.

When the plaster mold 10 stops advancing, the cylinder 42 operates,
The advancing/retracting frame 40 is moved forward. Advance/retreat frame 40
When the roller 48 is moved forward, a roller 48 as a cam follower attached to the inner surface thereof comes into contact with the inclined cam surface 34 of the cam plate 32, and the cam plate 32 is lifted 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 rise all at once, and are tightly fitted into the downward facing injection ports 14 of each plaster mold 10. In addition, initially these spout 2
The lid body 60 that had closed the opening of the lift frame 22
The opening of the pouring eye 24 is opened by the rotation of the lid opening/closing arm 58 in the clockwise direction in the figure as the lid opening/closing arm 58 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 inlet 14, and the branch hose 2
8 is connected to the injection port 14 of the plaster mold lO.

When the branch hose 28 is connected to each injection port 14 of the plaster mold 10 in this way, the slurry sent through the slurry supply pipe 26 is guided into the inside of 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, to the molding station, and the steps described in p}H-12 are carried out. Similar operations can be performed. These operations are performed one after another, and the slurry is continuously cast.

In this way, according to the device of the example, the slurry supply port can be mechanically and automatically attached to and removed from the injection port 14 of each plaster mold 10. 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 side of the elevating member and the roller as a cam follower is provided on the side of the advancing/retracting member, but it is also possible to provide these on opposite sides, and it is also possible to provide them on 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 the drawing]

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 cross-sectional view of the main part of the apparatus, 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 same 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 40. Advance/retreat frame 42. Cylinder 48 Roller 1l

Claims (1)

[Scope of Claim] 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 casting 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 intervals as the arrangement spacing of the respective fill ports. (c) an elevating member that moves back and forth in a direction substantially perpendicular to the elevating direction of the elevating member; A driving means for driving the member forward and backward, and (e) a cam mechanism interposed between the elevating and retracting members and converting the reciprocal movement of the elevating and retracting member into an elevating movement of the elevating and descending member, the elevating member 1. An automatic attachment/detachment device for a slurry supply port, characterized in that each pouring port is simultaneously connected to or separated from a respective injection port of each mold by vertical movement of the slurry supply port.