JPH0127773Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an investment material incinerator for dental technology (hereinafter simply abbreviated as "incinerator") in which a tray provided inside a pine full is rotatable.

Conventionally, in a Matsufuru furnace type incinerator, a tray was provided inside the Matsufuru, and the investment material was placed on top of the tray and heated.

However, in conventional incinerators, the tray cannot be rotated, so long chopsticks must be used to remove the investment material that has been heated to a high temperature placed at the back of the tray, which is inconvenient to handle, and When the materials are placed side by side on the tray, if the investment material placed in the back row is to be taken out first, the investment material that is an obstruction in the front row must be taken out, and then the investment material in the back row must be taken out. However, it was necessary to carry out complicated and time-consuming work such as putting the buried material, which had been taken out and caused an obstruction, back in its original location. As described above, conventional incinerators require a lot of effort and are inefficient in removing buried materials. Moreover, since the door had to be opened to remove the molten metal, the temperature inside the Matsuful, which had been getting hot, dropped too much, which further worsened the efficiency of the work.

Thus, the present invention comprises a Matsufuru, a rotatable tray disposed inside the Matsufuru, and a door for opening and closing the furnace provided on the side wall of the Matsufuru, and the tray is rotatably located at the inner bottom of the Matsufuru. The incinerator for dental technology is characterized in that it is mounted on a rotating shaft that is arranged and rotated in a heat-insulated manner from the outside of the furnace. This is characterized in that a mechanism for rotating the tray is provided via a heat insulating device.

The present invention was devised to eliminate the drawbacks of those conventional devices, and will be explained below based on the drawings. In the figure, the attached drawing is a schematic cross-sectional view of the incinerator according to the present invention, and the Matsufuru-type incinerator itself is well known in the art, and its structure and function do not require any particular explanation. . A tray 2 provided at the inner bottom of the Matsufuru 1 is fixedly supported on a rotatable rotating shaft 3, and the rotating shaft 3 is made of an appropriate heat insulating material such as a heat insulating brick. 4 thermally partitions the outside of the furnace. A dial 5 with an angular scale is operatively connected to the rotating shaft 3 via a miter gear 6 and a heat insulator 4 . In this way, the tray 2, which rotates in conjunction with the dial 5, can freely rotate by rotating this dial. In the illustrated example, it is manually rotated by the required amount if necessary, but it is of course also possible to do this automatically. The tray 2 is designed to be removable from the rotating shaft 3 in order to facilitate cleaning of the inside of the matsufuru 1, and is designed so that it does not rotate freely after being positioned with respect to the rotating shaft 3.

The details of the insulation device 4, dial 5, and miter gear 6 are well known in the mechanical field, and the present invention is not limited to specific ones thereof. Therefore, the following is omitted.

As described above, according to the present invention, when you want to take out only the investment material 7 currently placed on the tray 2 that is deep inside the Matsuful 1, the dial 5 can be rotated by the required angle. By moving the tray 2 to a position where it is easy to take out the investment material, the removal does not require keeping the door 7 open for a long time.
It can be done very easily and in a short time. Also, during heating,
Even if you want to move the position of the investment material in order to make the heating uniform, just rotate the dial 5 by the required angle at any time and the tray 2 will also rotate accordingly, so there is no other way to make the heating uniform. This can be easily realized without requiring any special means.

Therefore, according to the present invention, the investment material heated to a high temperature can be easily handled, and the door 8 does not have to be opened frequently, so that the work can be carried out efficiently.

[Brief explanation of the drawing]

The attached drawing is a schematic cross-sectional view of an investment material incinerator for dental technology according to the present invention. 1... Matsufuru, 2... Tray, 3... Rotating shaft, 4... Insulating device, 5... Dial, 6... Miter gear, 7... Investment material, 8... Door.

Claims (1)

[Scope of utility model registration request] Matsufuru, a rotatable tray placed inside the Matsufuru, and a door for opening and closing the furnace provided on the side wall of the Matsufuru, the tray being rotatably placed at the inner bottom of the Matsufuru, and outside the furnace. An investment material incinerator for dental technology, characterized in that it is attached to a rotating shaft that is driven and rotated in a more adiabatic state.