JPH0523924B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a slurry casting device for sanitary ware, and more particularly to a slurry casting device for sanitary ware that allows easy attachment and removal of an upper mold and mold clamping.

[Prior Art] The slurry casting method, in which sanitary ware is formed by injecting slurry into a plaster mold and depositing it on the inner surface of the molding space of the plaster mold, has been widely used as a molding method for toilet bowls, wash basins, etc. There is.

The plaster mold for slurry casting consists of an upper mold, a lower mold,
It is divided into several types, such as a horizontal type, and by combining each type, a plaster mold with a molding space inside is constructed.

Conventionally, the upper mold of this plaster mold was attached to and removed from a lower mold (for example, a horizontal mold) by moving it up and down using a lifting device such as a chain block. In addition, after placing the upper mold on the lower mold such as a horizontal mold,
After the mold is clamped using a chuck device such as an air chuck and the mating surfaces of the molds are brought together in a watertight manner, slurry is injected into the plaster mold.

[Problems to be Solved by the Invention] In the conventional method described above, the work of raising and lowering the upper die is time-consuming. Furthermore, in addition to raising and lowering the upper mold, it was also necessary to perform a mold clamping operation, which required time and effort to open and close the mold. Furthermore, if the upper mold is attached and removed by simply moving up and down, there is a risk that foreign matter or debris adhering to the upper mold may fall onto the product and become mixed into the product.

[Means for Solving the Problems] The sanitary ware slurry casting apparatus of the present invention includes a plaster mold in which an upper mold is detachable from a lower mold, and an attachment/detachment device for the upper mold. The device is connected to a horizontal axis disposed on the side of the plaster mold, an arm that is rotatable around the horizontal axis and has the upper mold attached to the lower surface of the working side, and a drive side of the arm. A driving device for rotating the arm, which moves the upper mold to the opposite side of the lower mold across the horizontal axis, and when the upper mold is placed on the lower mold. and a drive device capable of pressing the upper mold downward and clamping the mold.

[Function] In the sanitary ware slurry casting device of the present invention, when the driving device is driven to rotate the working side of the arm toward the lower mold of the plaster mold, the device is attached to the working side of the arm. The upper mold that was previously used covers the lower mold.
Then, by urging the arm by the drive device, the upper mold is strongly pressed against the lower mold to perform mold clamping.

To open the mold, a drive is actuated to rotate the working side of the arm away from the lower mold. As a result, the upper mold is lifted upward and the mold is opened.

As described above, according to the sanitary ware slurry casting apparatus of the present invention, mold clamping and mold opening operations can be performed extremely quickly. In addition, when the upper mold is opened, the upper mold can be completely evacuated from above the product (lower mold), so foreign objects and debris attached to the upper mold can fall onto the product and get mixed into the product. Problems can be avoided. In addition, since there is no heavy object directly above the product finisher, safety can be ensured even in the event of an earthquake or other emergency.

[Example] Examples will be described below with reference to the drawings.

FIG. 1 is a plan view of an apparatus according to an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a right side view, and FIG. 4 is a sectional view taken along the line - in FIG.

Reference numeral 10 is a vertical column, and support member 12
It is erected on the machine base 14 via.
A horizontal shaft 16 is provided at the top of the column 10, and an arm 18 is installed so as to be rotatable about the axis of the horizontal shaft 16.
An upper mold mounting plate 22 is supported on the lower surface of the active side 18A of the arm 18 via connecting members 20 and 21, and an upper mold 24 is mounted on the lower surface of the plate 22. Reference numeral 26 indicates a bolt for connecting the upper die 24 to the plate 22;
The lower end of 6 is buried in the upper mold 24.

The upper mold 24 is configured to cover the upper end surfaces of the horizontal molds 28 and 30. As shown in FIG. 4, a lower mold 32 is fitted from below to the horizontal molds 28, 30, and the upper mold 24, the horizontal molds 28, 30, and the lower mold 32 constitute a plaster mold 34.

This plaster mold 34 is installed on a support plate 36, and the support plate 36 is installed on a trolley 38. The trolley 38 is able to run on rails 42 using wheels 40. The rail 42 is connected to the frame 4
4, and the frame 44 is installed on the machine base 14.

In order to rotate the arm 18 in the vertical direction,
On the drive side of the arm 18, a piston rod 46 of a hydraulic cylinder 46 is provided as a drive device for rotating the arm.
a are connected. The lower end of the hydraulic cylinder 46 is connected (pivotally supported) to the column 10 via a bracket 48. A support member 50 extends horizontally from the column 10.
A power unit 52 for operating the hydraulic cylinder 46 is installed on the hydraulic cylinder 46. (The hydraulic cylinder 46 and the power unit 52 are not shown in FIG. 3.) As shown in FIG.
The upper mold 24 of each plaster mold 34 is arranged to rotate, and a plurality of slurry casting devices are mounted on a horizontal shaft 1.
6 are coaxially arranged in parallel. The frame 44 extends in common to a plurality of slurry casting devices installed in parallel.
The rail 42 on the top 4 also extends so as to be common to a plurality of slurry casting devices. The plaster mold 34 includes an end member 54 installed on the side of the rightmost slurry casting device and an end member 54 installed on the side of the leftmost slurry casting device (not shown). ), and is sandwiched between these end members so that the horizontal molds 28 and 30 are brought into close contact with each other.

In the slurry casting device configured as described above, the working side 18A of the arm 18 is rotated downward to place the upper mold 24 over the horizontal molds 28 and 30, and the hydraulic cylinder 46 By biasing the working side of the arm 18 downward, the upper mold 2
4 is pressed onto the horizontal molds 28, 30 and brought into close contact. After the plaster mold 34 is constructed in this way,
A slurry is introduced into the plaster mold 34, and the slurry is deposited on the surface of the mold in the space within the plaster mold 34. After the inking is completed, excess slurry is removed, and then the piston rod 46a of the hydraulic cylinder 46 is moved back.
As a result, the active side of the arm 18 is rotated upward to the position shown by the two-dot chain line A in FIG. As a result, the upper mold 24 is separated from the horizontal molds 28 and 30.

Therefore, the cart 38 was moved and the horizontal type 28, 30
The inked molded product can be demolded by separating the parts. After demolding is completed, the horizontal mold 28,
30 are brought into close contact with each other, and the hydraulic cylinder 46 is operated to cover the upper mold 24 with the horizontal molds 28 and 30, thereby making it possible to perform slurry casting.

As is clear from the above description, according to the apparatus of this embodiment, by operating the hydraulic cylinder 46, the upper mold 24 can be placed over the horizontal molds 28, 30, or conversely can be separated from the horizontal molds 28, 30. Moreover, the upper mold 24 can be brought into close contact with the horizontal molds 28 and 30 by applying pressure using the hydraulic cylinder 46. Therefore, mold opening and mold clamping can be performed extremely easily.

Furthermore, in the device of the above embodiment, the arm 1
By sufficiently rotating the upper mold 8, the upper mold 24 can be completely retracted from above the horizontal molds 28 and 30 when the mold is opened. By doing this, for example, even if a part of the upper die 24 is missing, it will be removed from the horizontal die 28,
30 or the molding space therein. Similarly, the deposits on the upper mold 24 are also removed from the horizontal molds 28, 30.
It will not fall onto the top or into the molding space inside.

Although the hydraulic cylinder 46 is used as a drive device for the arm 18 in the above embodiment, other drive devices may be used in the present invention. Further, in the above embodiment, the upper molds 24 of the six plaster molds 34 are rotated synchronously, but the upper molds of any other number of plaster molds may be rotated.

[Effects] As described above, according to the slurry casting device of the present invention,
The mold opening and mold clamping can be performed extremely easily, and moreover, the mold opening and mold clamping can be performed using one drive device. Furthermore, with the apparatus of the present invention, it is also possible to completely retract the upper mold from above the lower mold when the mold is opened.

[Brief explanation of the drawing]

1 is a plan view of an apparatus according to an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a right side view, and FIG. 4 is a sectional view taken along the line - in FIG. 1. 10...Column, 14...Machine base, 16
...Horizontal axis, 18...Arm, 24...Upper mold, 3
4...Gypsum mold, 38...Dolly, 42...Rail,
46...Hydraulic cylinder.

Claims (1)

[Claims] 1. A plaster mold in which an upper mold is removably attached to a lower mold, and a device for attaching and detaching the upper mold, the device for attaching and detaching the upper mold being disposed on the side of the plaster mold. an arm rotatable about the horizontal axis and having the upper die attached to the lower surface of the working side; a drive device for rotating the arm connected to the drive side of the arm, The upper mold is moved to the opposite side of the lower mold across the horizontal axis, and when the upper mold is placed on the lower mold, the upper mold can be pressed downward to clamp the mold. A slurry casting device for sanitary ware, comprising a drive device.