Field of the Invention

The present invention relates to mechanisms designed for opening and closing of moulds in high - pressure wall-hung toilet bowl machines used in sanitary ware manufacturing.

The invention specifically relates to a synchronous mechanism with a switching system that enables the opening and closing of each mould set to be performed independently, sequentially controlled and rigid manner in the high - pressure wall-hung toilet bowl machine.

Prior Art

The production of toilet bowl, which are considered as main sanitaryware products are manufactured in high - pressure casting machines. It is of critical importance that toilet bowls are manufactured in the said machines due to the relationship between the increasing demand for and the sale price of toilet bowls.

In the prior art, the working principle of mould opening systems, which play a significant role in highly efficient manufacturing of toilet bowls in high - pressure casting machines, typically based on sequential opening and closing of all moulds in variable numbers such as 8, 10 or 12, which are driven from a single source to move at the same time. During this operation, all products in the mould can cause manufacturing defects in the following processes due to the synchronous opening and closing operation and during the removal of products from the moulds by the operator. Furthermore, simultaneous opening and closing of all moulds lead to increased construction size of the casting machine and increased costs due to more material inputs.

Patent application no. EP2950985 appears in the literature as one example of the prior art. This patent application relates to a pressure casting apparatus and method. The said casting apparatus comprises a support and a casting cell, wherein the casting cell is attached to the support such that the casting cell can, in use, be swung, rotated, bent or tilted. The said casting apparatus does not contain a multiple number of moulds. Therefore, the said casting method yields a lower rate of production.

In conclusion, the drawbacks explained above and the shortcomings in existing solutions to the problems have necessitated improvement in the related technical field.

The Purpose of the Invention The present invention relates to a synchronous mechanism with a switching system which eliminates the disadvantages of the prior art while bringing new benefits to the technical field.

The primary objective of the invention is to provide a synchronous mechanism with a switching system that enables the opening and closing movement of each mould set to be performed independently, sequentially controlled and rigid manner in the high - pressure wall-hung toilet bowl machine.

Another objective of the invention is to eliminate the risk of error in toilet bowl manufacturing.

One other objective of the invention is to reduce toilet bowl manufacturing costs by way of easier manufacturing and mounting.

In order to achieve the objectives specified above, the invention relates to a synchronous mechanism with a switching system that enables the opening and closing movement of each mould set to be performed independently, sequentially controlled and rigid manner in the high- pressure wall-hung toilet bowl machine used in sanitary ware manufacturing, comprising: a carrier, which is attached to the side parts of the mould set that manufactures sanitaryware by way of casting and opens and closes the mould set; an upper mould carrier, which is located between the carriers; a switching system, which opens and closes in linear direction to move carriers in linear direction, comprising two long arms placed on top of one another in transverse fashion and attached in a way to ensure movement independent of the centre and short arms attached in a jointed manner to the ends of the long arms over the carriers and fixed to the carriers; a pneumatic cylinder, which is attached to the carriers and enables opening and closing of the switching system in linear direction based on the signals received from the PLC software; a stroke fixing pivot, which is located above the upper mould carrier to transfer the linear movement of the pneumatic cylinder to the switching system.

The below drawings and the detailed description referring to these drawings provide for a clearer understanding of the structural and characteristic properties and all benefits of the present invention; therefore the evaluation needs to take these drawings and the detailed description into account. Brief Description of the Drawings

Figure 1 shows a disassembled view of the synchronous mechanism according to the invention.

Figure 2 shows the synchronous mechanism according to the invention on top of the mould set.

Figure 3 shows the general view of the synchronous mechanism according to the invention on top of the mould set.

Detailed Description of the Invention

In order to facilitate a better understanding of the present invention, this detailed description demonstrates the preferred embodiments of the synchronous mechanism according to the invention in a non - limiting manner.

Figure 1 shows the disassembled view of the synchronous mechanism according to the invention. Accordingly, the synchronous mechanism, in the most general sense, comprises two carriers (10) attached to the side parts of the mould set that manufactures sanitaryware by way of casting; an upper mould carrier (20) located between the carriers (10); a switching system (30), which is located above the upper mould carrier (20), attached to both ends of the carriers (10) and opens and closes in linear direction; a pneumatic cylinder (40), which is attached to the carriers (10) and enables the switching system (30) to open and close in linear direction; a stroke fixing pivot (50), which is located above the upper mould carrier (20) to transfer the linear movement of the pneumatic cylinder (40) to the switching system (30).

As shown in Figure 2, the carrier (10) in the synchronous mechanism according to the invention is attached to the side parts of the mould set that manufactures sanitaryware by way of casting. The carriers (10) enables the mould set to open and close while moving. An upper mould carrier (20) is placed between the carriers (10) and a switching system (30) is fastened to the upper mould carrier (20).

The switching system (30) typically comprises two long arms (31 ) placed on top of one another in transverse fashion over the upper mould carrier (20) and attached in a way to ensure movement independent of the centre and short arms (32) attached in a jointed manner to the ends of the long arms (31 ) and fixed to the carriers (10).

The long arms (31 ) are placed on top of one another in transverse fashion over the upper mould carrier (20) and attached in a way to ensure movement independent of the centre. Short arms (32) are attached to both ends of the long arms (31 ) to ensure movement independent of one end, and a hub bush (36) is attached to the ends of the long arms (31 ) and short arms (32) to fasten the short arms (32) to the ends of the long arms (31 ) in a jointed manner by way of the hub bolt (34), hub washer (35) and hub mounting nut (37). The hub adjusting ring (38) placed above the hub bush (36) allows for adjustment of the freedom of movement of the short arms (32) at the ends of the long arms (31 ).

The hub bush (36) is attached in a combined manner to one end of the short arms (32), which are attached to the long arms (31 ) from the other end to ensure free movement, and the ends of the short arms (32) are attached to ensure free movement by way of the hub bolt (34), hub washer (35) and hub mounting nut (37). The hub adjusting ring (38) placed above the hub bush (36) allows for adjustment of the freedom of movement of the coupled ends of the short arms (32).

Coupled ends of the short arms (32) are fixed to the carriers (10) by way of the hub (39). This makes it possible to fix the switching system (30), which is connected to the upper mould carrier (20), to open and close in linear direction over both carriers (10). Opening and closing movement of the switching system (30) is driven by the pneumatic cylinder (40) which is located above the carriers (10) to ensure the switching system (30) opens and closes in linear direction. The linear movement of the pneumatic cylinder (40) is transferred to the switching system (30) by way of the stroke fixing pivot (50) located above the upper mould carrier (20).

The working principle of the synchronous mechanism according to the invention can be summarized as follows:

The pneumatic cylinder (40) performs the opening or closing movement in linear direction based on the signal received from the PLC software. The opening of closing movement of the pneumatic cylinder (40) is transferred to the switching system (30) located above the upper mould carrier (20) by way of the stroke fixing pivot (50). Correspondingly, long arms (31 ) and short arms (32) connected in a jointed manner in the switching system (30) open and close in linear direction and the mould set opens and closes by way of the linear movement of the carriers (10) attached to the mould parts. As shown in Figure 3, the number of synchronous mechanisms according to the invention can be increased or decreased depending on the number of multiple mould sets used.