JPH03203602A - Slurry cast molding machine - Google Patents

Abstract

PURPOSE:To make a structure of a fork simple by taking up a mold by means of a press in the up and down direction provided on a machine frame and delivering thereby the mold. CONSTITUTION:An assembled mold 20 is mounted in a molding machine 1 by means of a fork. This mold 2 is elevated with a receiving stage 14 by forwarding cylinder units 10 and 10 and pinched by the receiving stage 14 upper press plate 11 for a top force. On the other hand, left and right side molds 22 and 23 are pinched by side cylinders 12 and 12. Then, a machine frame 3 is rotated by about 90 deg. in the clockwise direction and a slurry is fed from a slurry feeding and discharging tube 7 to slurry feeding and discharging paths 26 and 27. The slurry feeding and discharging path 26 feeds the slurry from a lower part of a cavity for a molding W1 and the slurry feeding and discharging path 27 feeds the slurry from a lower part of a cavity for a molding W2. The fed slurry is deposited as a layer on the molding face of the mold and excess water is discharged out of the mold through a porous layer. After a specified time passes, undeposited slurry is discharged out of the cavity through the slurry feeding and discharging tube 7 while compressed air is fed in each cavity from air tubes 15 and 15.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a slurry casting machine for molding by pouring slurry.

(Conventional technology) After molding, the entire mold is demolded and the molded product is kept in the mold.
In a molding line that moves to another station for mold assembly, the assembled mold is loaded into the molding machine,
In addition, in order to take out the mold after casting from the molding machine,
A fork with a lift mechanism is installed on the mold carrier, the fork lifts the mold, the fork enters the molding machine, the lift descends, and only the fork retreats, and the mold is transferred to the molding machine. was going on.

In addition, since the entire mold moves, slurry is supplied to the casting space of the mold during molding, and slurry is supplied and discharged corresponding to the slurry supply and discharge ports provided in the mold for discharging unattached slurry from the casting space. The tube was being attached and detached.

(This is a problem that the invention attempts to solve.However, due to the weight of the mold, rigidity was required for the fork of the mold conveyance truck, making the structure complicated.In addition, it was necessary to attach and detach the slurry supply and discharge pipe. However, a special attachment/detachment device was required, making the molding machine complicated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slurry casting machine that simplifies a mold transport vehicle for loading and unloading molds into a molding machine, and simplifies the mechanism of the molding machine. It is in.

(Means for Solving the Problems) In order to achieve the above-mentioned problems, the present invention includes a machine frame rotatably supported on a machine base via left and right shafts, and a vertical pressing means provided on the machine frame. Furthermore, the press means is provided with a slurry supply/discharge port.

(Function) After the mold is loaded into the molding machine with a fork, the mold is lifted from the fork and pressed using a vertical pressing means, and the slurry supply/discharge port of the mold is joined to the slurry supply/discharge port of the molding machine. .

(Example) Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a front view of a slurry casting machine according to the present invention.

Slime casting machine 1 (hereinafter simply referred to as "molding machine 1").

) has a machine frame 3 rotatably supported on a pair of machine stands 2, 2 that stand up from a foundation or a solid base. That is, the machine frame 3 has a square shape when viewed from the front, and a left shaft 4 and a right wheel 5 extend horizontally from the left and right sides as shown in the figure, and these left shafts and right wheels are connected to the plummer block 6 on the machine frame 2.2. It is inserted into .6.

The left shaft and the right wheel 4.5 are hollow shafts, and the left shaft 4 is provided with a slurry supply and discharge tube 7, and the right wheel 5 is provided with a hydraulic tube 8. In the figure, 7a and 8a are rotary joints.

Furthermore, the right wheel 5 is engaged with a hydraulic rotary ram 9.

This hydraulic rotating ram is a rotating means that arbitrarily rotates the right wheel 5 to the left or right using hydraulic pressure.

As a press means in the vertical direction, a cylinder unit 10° 10 is installed upward in the lower part of the machine frame 3, and the piston rods 10a and holders attached to the tips of the 10a are mounted on a stand 1.
It consists of 4. This receiver has slurry supply and discharge ports 16 and 1 on the stand 14.
7 is open and the tip of the slurry supply/drainage tube 7 is connected to it, and an air supply port (not shown) for supplying pressurized air to the casting space for discharging unattached slurry is also open. The tip of the air tube 15.15 is connected.

An upper mold holding plate 11 is fixedly installed in the upper part of the machine frame 3, and side cylinders 12 are provided on the sides as pressing means in the left and right direction.
12 is attached, and these piston rods 12a, 12
A presser plate 13° 13 is attached to the tip of a.

Note that the hydraulic tube 8 is connected to the cylinder 10°10.12
．． Connected to 12.

Mold 20 by the cylinders 10, 10, 12, 12
is pinched.

FIG. 2 is an exploded view of the mold, and the mold 20 consists of a lower mold 21, left and right molds 22, 23, and a molding convex, which are attached to a conveying plate 28 in order to obtain a molded body part W1 of a Western-style toilet bowl. The middle mold 24 and the upper mold 25 are combined to obtain a middle mold 24 with a portion 24a projecting downward and a rim molded body W2 of a Western-style toilet bowl.

Fig. 3 is a diagram showing a combination type, and Fig. 4 is a diagram showing A of Fig. 3.
-A sectional view. As shown in Fig. 4, the molded bodies Wl, W
Slurry supply/discharge passages 26, 27 communicating above the second cavity are formed in the mold and connected to slurry supply/discharge ports 29, 30 opened at the lower surface of the plate 28. This slurry supply/discharge port 29
, 30, during molding, the receiver is joined to slurry supply/discharge ports 16 and 17 opened in the table 14.

The mold 20 has a two-layer structure in which the outer layer of each cavity forming part is concrete and the inner layer is a porous layer.
A water guide passage is provided at the boundary between the inner and outer layers or within the inner layer.

The operation of the molding machine explained above will be described next.

The mold 20 assembled as shown in FIG. 3 is loaded into the molding machine 1 shown in FIG. 1 from the front with a fork (not shown). This mold 20 is moved by the cylinder unit 10.degree. 10 to raise the receiver together with the stand 14, and the receiver is vertically held between the stand 14 and the upper mold holding plate 11 above. Then move the forks back.

On the other hand, the left and right side types 22.23 have sight cylinders 12.12
It is held between the

Next, the hydraulic rotary ram 9 is started and the machine frame 3 is rotated approximately 90 degrees clockwise as viewed from the right side in FIG. 1 (arrow ■ in FIG. 5).
.

FIG. 5 shows the mold 20 rotated, and in this state, slurry is supplied from the slurry supply and discharge tube 7 to the slurry supply and discharge passages 26 and 27.

The slurry supply/discharge passage 26 injects slurry into the cavity from the lower part of the cavity for the molded body W1, and the slurry supply/discharge passage 27 injects slurry into the cavity from the lower part of the cavity for the molded body W2.

Injected: & Plasma causes the clay content to adhere to the molding surface, and excess water permeates through the porous layer and is discharged outside the mold.

After a predetermined period of time has elapsed, pressurized air is supplied from the air tubes 15 and 15 to each cavity, and the unattached slurry is removed through the slurry supply and discharge channels 26, 27 and the slurry supply and discharge ports 29, 30, 16, 17.
The slurry is discharged from the cavity through the slurry supply and discharge tube 7.

The hydraulic rotary ram 9 is reversely operated to return the machine frame 3 and mold 2.
0 in the direction of the arrow ■ in Figure 5.

When it returns to the position shown in Figure 1, cylinder 10°10.12
．． The holding force of 12 is removed, and the free mold 20 is taken out of the machine frame 3 with a fork and sent to the mold breaking process.

In this embodiment, the slurry supply and discharge tube 7 and the hydraulic tube 8 are passed through the left and right shafts 4.5 so that no torsional force is applied to the tubes 7.8, so that the machine frame 3 is moved from its initial position. It can be easily rotated to any angle, for example, 90° to 180°.

As a result, the mold can be tilted to a position where the slurry can be most easily supplied and discharged, thereby preventing air from being drawn into the cavity during supplying the slurry and ensuring that unattached slurry can be discharged. Furthermore, the design of the mold becomes easier without being restricted by the supply and discharge of slurry.

Note that the rotating means for the machine frame 3 is not limited to a hydraulic rotary ram, and may be, for example, a motor with a speed reducer, a cylinder with a lever, or the like.

(Effects of the Invention) As described above, in the present invention, the mold is lifted by the vertical press means provided on the machine frame and the mold receiver is transferred, so a lift mechanism is not required for the fork of the mold conveyance truck. The structure becomes simpler. In addition, since a slurry supply/discharge port is provided in the press means, the mold can be connected to the slurry supply/discharge port at the same time as the vertical pressing, eliminating the need for a dedicated attachment/detachment device and simplifying the structure of the molding machine. demonstrate.

[Brief explanation of drawings]

FIG. 1 is a front view of a slurry casting machine according to the present invention; Figure 2 is an exploded view of the mold. Figure 3 is a diagram showing a combination type; Figure 4 is a sectional view taken along line A-A in Figure 3; FIG. 5 is an explanatory diagram of the action. 1... Slippery casting machine 2... Machine frame 3... Machine frame 4...Left axis 5...Right wheel 9... Hydraulic rotary ram 20 as a rotating means... Mold 16.17...Sludge supply and discharge port 1st + E 5 Figure 5

Claims (2)

[Claims] (1) A machine that is rotatably supported on a machine base via left and right shafts in a molding line where the entire mold is moved to another station for demolding and mold assembly while retaining the molded product in the mold after molding. frame and
1. A slurry casting molding machine, comprising means for pressing a mold in the vertical direction provided in the machine frame. (2) The slurry casting machine according to claim 1, wherein the press means is provided with a slurry supply/discharge port.