JPH0367604A - Slurry cast molding apparatus - Google Patents

Abstract

PURPOSE:To lessen the idle time of facilities, and improve the operation rate, and thus, raising the productivity by arranging a plurality of molding facilities adjacent to a mold detaching facility, and carrying out the molding in parallel and in different phases, and then conducting the mold detaching in transporting the moldings step by step together with molding dies to the mold detaching facility by a transporting facility. CONSTITUTION:Each mold clamping of slurry cast molds 25, 28 is performed simultaneously wherein cavities are defined, and slurry is filled and pressurized in making a frame 18 inclined, and then the non-contact slurry is extruded after being molded. Following this, the frame 18 is returned to the original posture, and dies 41, 26 and 29 are separated one another. And, moldings W1, W2 carried by dies 39, 45 are transported to a mold detaching station A by carriages 31, 44. Since the molding processes are executed at different phases in each molding station B1, B2, the moldings are transported alternately. At the mold detaching station A, the receiving tables 16, 17 of conveyors 16, 17 are rais, and the moldings are separated from the dies 39, 45 and then mounted on the receiving tables 16a, 17a, further, transported to the next process by means of the conveyors 16, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a slurry casting apparatus used for manufacturing pottery and the like, and particularly to a slurry casting apparatus intended to improve productivity.

(Prior art) The slurry casting method is often used to manufacture pottery such as toilet bowls, in which peptized slurry made by suspending raw material clay in water is poured into a mold, and this slurry casting method is adopted. Various slurry casting apparatuses have been proposed in Japanese Patent Publication No. 64-3645 and other publications. For example, the slurry casting molding apparatus disclosed in Japanese Patent Publication No. 64-3645 aims to automate the molding and demolding, and uses a mold consisting of two split molds that can be divided into upper and lower parts. It is fixed to a base, and a lower split mold is supported on the base so as to be movable up and down, and the lower split mold is moved up and down to assemble and divide the mold. This slurry casting equipment has a molding equipment and a demolding equipment installed around the mold, and when the mold is assembled, the molding equipment performs molding processes such as pouring slurry, inking, draining, and removing slurry. (molding process), and a demolding process in which the mold is divided and the molded body is removed using demolding equipment.

(Problems to be Solved by the Invention) However, in the conventional casting molding apparatus described above, molding equipment and demolding equipment are arranged around the mold, and molding and demolding are performed at fixed positions. There was a problem in that the idle time of the equipment, especially the demolding equipment, was long and the production efficiency was low. That is, in the slurry casting apparatus as described above,
The time required for the molding process is longer than the time required for the demolding process (usually 2 to 4 times), making it impossible to operate the equipment efficiently.

This invention was made in view of the above circumstances, and an object of the present invention is to provide a slurry casting apparatus that can efficiently operate molding equipment and demolding equipment, and to improve productivity.

(Means for Achieving the Object) This invention provides molding equipment that injects slurry into a splittable mold, dehydrates the slurry in the mold, and molds a molded article in the mold; In a slurry casting molding apparatus, a plurality of molding equipments are arranged adjacent to the demolding equipment, and the molded products molded by these molding equipments are removed from the mold together with the molding mold. The gist is that a means of transporting it to the demolding equipment was provided.

(Function) According to the slurry casting molding apparatus according to the present invention, a plurality of molding equipments are arranged adjacent to the demolding equipment, and the molded bodies molded in parallel in each molding equipment are removed together with the molds by the transfer equipment. Since the mold can be sequentially transferred to mold equipment and demolded, the molding equipment and demolding equipment can be operated efficiently, and high production efficiency can be obtained.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

The drawing is a front view of a slurry casting device according to an embodiment of the present invention.

In the figure, 11 is a pedestal installed on the factory floor F. The pedestal 11 includes four pairs of supports 12a and 12b, each of which stands apart from each other in the direction perpendicular to the plane of the paper.

A pair of lower beams 13 are installed on the lower beams 12c and 12d, which extend parallel to each other and are spaced apart from each other in the direction perpendicular to the plane of the paper. A pair of upper pillars 14a and 14b are erected, and these upper pillars 14a.

A ceiling beam 15 is constructed on the upper end of the beam 14b. A demolding station A is set in the center of the pedestal 11 in the figure, and a conveyor 16,
A hang conveyor 17 and demolding equipment 51 such as side mold opening cylinders (not shown) are installed, and molding stations B, B2 are set on the left and right sides of the demolding station A, respectively. Molding equipment 52 such as the frame 18. ．． 522 is installed. In addition, molding station B1. B2 molding equipment 52, . 522 has the same left-right symmetrical configuration, and hereinafter, the same parts will be given the same reference numerals and the explanation will be omitted, and the molding station B1
+82 will be represented by the symbol B, and the molding equipment 52t + 522 will be represented by the symbol 52.

The conveyor 16 extends in a direction perpendicular to the plane of the paper on the floor F between the pillars 12b and 12c, and a plurality of receivers 16a that move in this direction are provided via a pantograph-type lifting mechanism 16b. Similarly, the hang conveyor 17 extends between the upper pillars 14a and 14b above the lower beam 13 in the direction perpendicular to the plane of the paper, and the plurality of moving receivers are connected to the elevating mechanism 17 by the horse chestnut 17a.
It is provided so that it can be moved up and down via b. The conveyor 16 and the hang conveyor 17 are raised at the demolding station A by engaging a bell crank or the like with a chestnut 16a, 17a, and a molded body W, W2 formed with a slurry mold, which will be described later, on the upper surface. Place and transport.

The frame 11 also includes upper columns 14a and 1 on the lower beam 13.
4b, a pair of lower fixed rails 19a are installed in parallel and spaced apart in the direction perpendicular to the page, and an upper fixed rail 20a is installed in parallel and spaced apart in the direction perpendicular to the page between the upper pillars 14a and 14b above the hang conveyor 17. has been done. Lower fixed rail 19
The upper fixed rail 20a is cut diagonally so that both ends can be continuous with the lower movable rail, which will be described later.Similarly, the upper fixed rail 20a is also cut diagonally so that both ends can be continuous with the upper movable rail, which will be described later.

The frame body 18 is supported by a pair of bearing blocks 21 on the lower beam 13 of the pedestal 11 so as to be rotatable about an axis perpendicular to the plane of the drawing. The frame 18 is formed by joining upper and lower horizontal panels 22 and 23 with a pair of vertical panels 24 (the negative one is not shown), and has a substantially rectangular cylindrical shape with open left and right sides in the figure. In this frame body 18, a bottom mold 26 of a first slurry mold 25, which will be described later, is fixed to the upper surface of a lower horizontal panel 23, and a vertical panel 24
A tilting cylinder 27 is installed at the bottom of the side edge of the demolding station A side.
are connected, and an upper moving rail 20b and a lower moving rail 19b are vertically fixed on the opposing inner surfaces of each vertical panel 24, respectively, and a second slurry is installed on the vertical panel 24 directly below the upper moving rail 20b. A lower mold holding member 30 that holds the lower mold 29 of the mold 28 in a vertically movable manner is fixed. The tilting cylinder 27 has an upper end of a cylinder body 27a connected to the right end of the ceiling beam 15, and a tip of a rod 27b protruding from the lower end of the cylinder body 27a swingably connected to the side edge of the vertical panel 24 described above. There is. The tilting cylinder 27 expands and contracts with hydraulic pressure supplied from a hydraulic circuit (not shown), and tilts the frame 18.

The upper moving rail 20b is cut diagonally so that the end on the demolding station A side can be continuous with the above-mentioned upper fixed rail 20a, and similarly, the lower moving rail 19b is cut diagonally so that the end on the demolding station A side is connected to the above-mentioned lower fixed rail 20a. It is cut diagonally so that it can be continuous with the fixed rail 19a. The upper moving rail 20b and the lower moving rail 19b are connected to the frame 18 by the tilting cylinder 27.
, and are connected to the upper fixed rail 20a and the lower fixed rail 19a, respectively.
disconnected.

Reference numeral 31 denotes a lower trolley for mold movement that is provided in each molding equipment 521, 522 and can run on the lower moving rail 19b and the lower fixed rail 19a. The lower truck 31 is connected to each lower rail 19.
It is equipped with four wheels 31a and a motor 31b with a reduction gear, which move on the surfaces a and 19b, and the motor 31b drives the wheels 31a to travel. Two guide posts 32 are fixedly installed on the lower truck 31 at a distance from each other in the left and right directions in the figure, and each guide post 32 has a hollow cylindrical guide bush 33 and a guide rod 34 that are slidable in the vertical direction. They are inserted concentrically. The lower ends of the guide bushes 33 are fixed to the cylinder support member 35 and protrude upward from the upper surface of the support member 35, and the lower ends of the guide rods 34 are connected to the upper mold holding member 36 of the first slurry mold 25. The guide rod 34 is fixed and protrudes upward, and is slidably inserted into the guide bush 33. The cylinder support member 35 is vertically movable relative to the lower truck 31 and the upper mold holding member 36, and the mold clamping cylinder 37 is vertically supported between the guide bushes 33. Mold clamping cylinder 3
7, a cylinder body 37a has its lower end fixed to the cylinder support member 35 and stands upwardly from the upper surface of the cylinder support member 35, and a rod 37b hangs down from the lower end of the cylinder body 37a so as to be extendable and retractable. The mold clamping cylinder 37 has a rod 37b whose tip end is connected to the upper mold holding member 36, and a second slurry mold 28 at the upper end of the cylinder body 37a.
A pressing portion 37c that can press the lower mold 29 upward is formed. Note that 38 is a stopper member fixed to the upper end of the guide bush 33.

The first slurry mold 25 is for molding the body of a Western-style toilet bowl, and can be divided into the bottom mold 26, the two side molds 39, and the upper mold 41 fixed to the lower surface of the upper mold holding member 36 described above. It consists of layers stacked one above the other. Two pairs of substantially U-shaped hook members 42 that hang downward from the upper surface of the upper mold 41 are fixed, and the side molds 39 are each provided with a protrusion 39a that can lock the lower end of the hook member 42. There is. The lower end of the hook member 42 engages with a protrusion 39a to lift each side mold 39 during upward movement of the upper mold, which will be described later. The second slurry mold 28 is for molding the rim of a Western-style toilet, and includes a lower mold 29 fixed to the upper surface of the lower mold holding member 30 and an upper mold 45 suspended from an upper cart 44. It is constructed by stacking layers that can be divided into upper and lower parts. These slurry molds 25, 28 are each mold 26, 39,
4129.45 has a structure in which a porous inner layer with water permeability and an outer layer made of concrete are laminated, and a large number of water conduction passages are provided at the boundary between the inner and outer layers or in the inner layer, and a cavity is defined in the inner layer and the inner layer surface is A molded body is formed by growing clay on the mold.

The upper truck 44 is self-propelled like the lower truck 31 described above, and is provided in each molding equipment 52, 1, 522, respectively. The upper truck 44 has four wheels 44a and a motor with a speed reducer (not shown), and drives the wheels 44a with the motor to travel on the lower truck 31 and each upper rail 20a, 20b. . This upper truck 44 has wheels 44a that are connected to the rail 20.
a, fits into a groove formed on the side surface of 20b in a removable manner,
It also moves upward when pressed upward by a mold clamping cylinder 37, which will be described later. The above-described upper truck 44, lower truck 31, and each rail 19a.

19b, 20a, and 20b constitute a transfer facility 53.

Next, the operation of this embodiment will be explained.

This slurry casting molding apparatus includes each molding station B1.
In B2, the following molding steps are carried out in parallel,
In addition, they are performed at different phases, that is, at different end times. In the molding process, first, the mold clamping cylinder 37 is extended to simultaneously clamp the molds 26, 39.41 of the first slurry mold 25 and the molds 29.45 of the second slurry mold 28. to define a cavity in each mold 25,28.

Next, with these molds 25.28 clamped by the mold clamping cylinder 37, the tilting cylinder 27 is moved MwJ to tilt the frame 18 together with each mold 25.28, and the slurry is deposited in the cavity of each mold 25.28. After that, the slurry in each cavity is pressurized using a pump or a pressure intensifier (not shown).

Therefore, in each of the molds 25 and 28, the moisture in the slurry is selectively discharged, and the clay content grows on the inner wall of the cavity, forming a body part molded body and a rim part molded body, respectively. After a predetermined period of time has elapsed, the unattached slurry in the cavity is discharged.

Next, the tilting cylinder 27 is extended to return the frame 18 to its original position, and the upper mold 41 and the bottom mold 26 of the first slurry mold 25 are moved.
, compressed air is injected into the water guide passage of the lower mold 29 of the second slurry mold 28, and at the same time, the mold clamping cylinder 37 is fibrillated. As a result, the first slurry mold 25 has an upper mold 41 and a bottom mold 2.
6 and the molded body are separated, and the upper mold 41 and the side mold 39 holding the molded body move upward as the mold clamping cylinder 37 fibrillates. Similarly, in the second slurry mold 28, the lower mold 29 and the molded body are separated, the lower mold 29 moves downward, and the molded body is held by the upper mold 45. Then, the lower truck 37 and the upper truck 41 travel together to the left side in the figure to the demolding station A, and the mold 3
The molded body Wl held by the mold 9 and the molded body W2 held by the mold 45 are transferred to the demolding station A. Here, as described above, each molding station B1. In B2, the molding process is performed in different phases, so demolding station A
The molded bodies molded at molding station B and the molded bodies molded at molding station B2 are alternately carried into the molding station B.

At demolding station A, a demolding process is performed as described below. First, the receiver of the conveyor 16 is the horse chestnut 16a.
Similarly, the receiver of the hang conveyor 17 raises the chestnut 17a until it comes into contact with the molded body in the upper mold 45 of the second slurry mold 28. It will rise until it touches you. After that, compressed air is injected into the water guide passage of the side mold 39 of the first slurry mold 25 to separate the side mold 39 and the molded body, and the side mold 39 is opened and the molded body is placed on the chestnut 16a. Place. Similarly, the upper mold 4 of the second slurry mold 28
Compressed air is injected into the water guide passage 5, the molded body is separated from the upper die 45, and the molded body is placed on the tray 17a. After this, these receivers are molded on the chestnut 16a, and the receivers are mounted on the chestnut 17a.
The upper molded bodies are conveyed to the next process by conveyors 16 and 17, respectively. After removing the molded body, the carriage 31.44 moves to the right in the figure and travels to the molding station B, where each of the molds 25, 28 is reassembled and repeatedly molded.

Here, as mentioned above, the time required for the demolding process at demolding station A is shorter than the time required for the molding process at each molding station Bl, B2, but demolding station A has two molding stations Bl, B2. Since the molded bodies held in the mold are carried in alternately from the mold removal station A.
The idle time of the demolding equipment 51 can be reduced, and the idle time of the molding equipment 52, 522 of each molding station B, B2 can also be reduced, and each equipment 51, 52 can be operated efficiently, improving productivity. I can figure it out.

In the above-mentioned embodiment, a slurry casting apparatus is illustrated in which two molding stations B1 and B2 are set for one demolding station A, but three or more molding stations are installed for one demolding station. It is also possible to set

(Effects of the Invention) As explained above, according to the slurry casting molding apparatus according to the present invention, a plurality of molding equipments are arranged adjacent to a demolding equipment, and these molding equipments are operated in parallel and at different phases. Molding is performed in the molding equipment, and the molded objects formed in the molds are sequentially transferred to the demolding equipment along with the molding equipment using the transport equipment for demolding, reducing the idle time of the equipment and improving the operating rate. and high productivity can be obtained.

[Brief explanation of drawings]

The drawing is a front view of a slurry casting apparatus according to an embodiment of the present invention. 11... Frame 16... Conveyor 17.
...Hang conveyor 18...Frame bodies 19a, 19b,
20a, 20b...Rail 25.28...Sliver mold (molding mold) 26...Bottom mold 27...Tilt cylinder 2
9...Lower die 31...Lower truck 37...
Three mold clamping cylinders...Side mold 41...Top mold
44...Upper truck 45...Upper mold 5
1...Mold removal equipment 521.522...Molding equipment 53...Transfer equipment A...Mold removal station B+, B2...Molding station

Claims (1)

[Scope of Claims] A slurry comprising molding equipment for injecting slurry into a splittable mold and molding a molded body into the mold, and demolding equipment for dividing the mold and taking out the molded body from the mold. The cast molding apparatus is characterized in that a plurality of molding equipment are arranged adjacent to the demolding equipment, and a transfer means is provided for transporting the molded body formed by the molding equipment together with the mold to the demolding equipment. Slime casting molding equipment.