JPH05174Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Field of Application] The present invention relates to a titanium alloy denture coining base manufacturing apparatus for manufacturing a denture coining base having good compatibility with the human body at low cost and with high efficiency. [Conventional technology] In response to the increasing longevity of humankind, the transition to an era of high welfare, and improvements in medical technology, the development of dentures, artificial joints, artificial bones, hearts, etc. made from superior biological materials has been carried out. It is being said. Biomaterials (1) have an affinity with living tissues and strongly bond with bones and other tissues;
(2) It has no harmful effects on living organisms such as toxicity, irritation, carcinogenicity, and thrombogenicity. (3) It must have characteristics such as excellent corrosion resistance in vivo and no corrosion. It is even said that the denture market will rival the automobile industry in the future, and various developments are being attempted. Dentures are attached to the human body via a denture coining base that is fixed to the jawbone. FIG. 2A is an example of a coining bed for a denture, and FIG. 2B is a cross-sectional view taken along AA of FIG. Currently, such denture coining bases are
Most are manufactured by centrifugal casting using a Co-Cr alloy as a material. [Problems to be solved by the invention] However, the coining base for dentures produced by centrifugal casting of the Co-Cr alloy remains unsatisfied with its compatibility with the human body, and There were problems in that it was expensive and had low manufacturing efficiency. Titanium alloy has extremely good compatibility with the human body, preventing inflammation, hypersensitivity, allergies, etc.
It does not cause tissue rejection, does not cause blood to coagulate when it comes into contact with blood, and is even said to cause cells to regenerate and bones to grow on titanium alloy materials. . It is clear that if such a titanium alloy plate can be press-formed to produce a coining base for dentures, an extremely inexpensive coining base for dentures can be obtained. Because of the difficulty in manufacturing, no emphasis was placed on this method of manufacturing a coining base for dentures. [Means for Solving the Problems] The present invention makes it possible to press-form a titanium alloy plate into a coining base for dentures, and provides a means for solving the above-mentioned problems. a heating furnace for accommodating a container; and a pressing tool inserted into the heating furnace from above the heating furnace to press the lid of the molded container accommodated in the heating furnace onto the container body;
a transfer tool for moving the molded container in and out of the heating furnace, the molded container accommodates a tooth mold, and is provided with an inert gas feed pipe at the top and an exhaust pipe at the bottom; The heating furnace is equipped with a titanium alloy denture coining bed manufacturing device in which a blow pipe and an exhaust pipe are arranged, and the transfer tool places the molded container on a table that slides on a guide plate. A titanium alloy denture coining bed manufacturing apparatus comprising a pedestal provided on the pedestal, and a rotary wheel provided on the outside of the door of the heating furnace that can be raised and lowered to support the table; The gist of the present invention is the titanium alloy denture coining bed manufacturing device rotatably mounted on the top. A tooth impression here refers to an impression of the shape of a tooth using plaster or plastic material in a plastic state, which is then solidified into a porous object. Inert gas is argon,
Refers to gas such as helium. The present invention will be explained based on the drawings. FIG. 1 is a diagram showing an embodiment of the present invention, in which A is a cross-sectional view of the overall arrangement, B is a cross-sectional view of a molded container, C is a front view of a transfer tool, and FIG. D is a side view of FIG. This embodiment includes a molded container 1, a heating furnace 2 that accommodates the molded container, and a lid 11 of the molded container 1 that is inserted into the heating furnace 2 from above the heating furnace 2 to cover the container body. 12; and a transfer tool 4 that moves the molded container 1 into and out of the heating furnace 2. A plaster tooth mold 13 is housed therein, and an inert gas supply pipe 14 is provided at the top, an exhaust pipe 15 is provided at the bottom, and a blast pipe 21 and an exhaust pipe 22 are provided in the heating furnace 2. Ru. A heat-resistant O-ring 111 is inserted into a groove formed in the contact surface of the lid 11 of the molded container 1 with the container body 12. The pressing rod 31 of the pressing tool 2 is driven up and down by a cylinder 32, and a support stand 33 that supports the molded container 1 from the bottom of the heating furnace 2 as necessary.
will be provided. The transfer tool 4 places the molded container 1 on it,
It has a pedestal 43 provided on a table 42 on which guide plates 41, 41 slide, and rotating wheels 44, 44 provided on the outside of the door 23 of the heating furnace 2 and movable up and down to support the table 42. configured. The molded container 1 has a cylindrical bottom, and the pedestal 43 has a shape that rotatably supports the cylindrical bottom of the molded container 1. [Operation] In order to form a titanium alloy coining bed for dentures using the device of the present invention having the above-mentioned configuration, the titanium alloy plate 5 as a raw material is placed between the container body 11 and the lid 12 of the molded container 1. After positioning and placing it above the support stand 33 in the heating furnace 2, the cylinder 32 of the pressing tool 3 is driven to lower the pressing rod 31 and press the lid 12 of the molded container 1 onto the container body 11. ,
The molded container 1 is held airtight. After that, heating furnace 2
At the same time, the door 23 of the heating furnace 2 is closed, and the heat source (not shown) of the heating furnace 2 is started to raise the temperature. At the same time, high-pressure argon gas is introduced from the upper part of the molding container 1 through the inert gas feed pipe 14. , the bottom of the molding container 1 is evacuated by an exhaust pipe 15 connected to a vacuum pump (not shown). As a result, the titanium alloy plate 5 is gradually heated and softened, and at the same time, a pressing force from above by argon gas introduced from above the molding container 1 and a downward suction force of the titanium alloy plate 5 created in a vacuum are applied. As a result, it is gradually deformed downward, comes into close contact with the tooth pattern 13, and is molded into a shape that follows the tooth pattern 13. After the molding is completed, the heating furnace 2
The heat source of the air pipe 21 and the exhaust pipe 22 are
At the same time, the dampers (not shown) are opened, and cold air is sent into the heating furnace 2 from the air pipe 21 connected to the blower (not shown).
The molded container 1 is cooled by discharging the high temperature air inside through the exhaust pipe 22. Even during this cooling, argon gas is supplied into the molded container 1.

【table】

[Effect of idea]

In this invention, the material titanium alloy plate is placed in a sealed molding container, and an inert gas is introduced above the titanium alloy plate, and a pressure is applied from above, and a vacuum is created below the titanium alloy plate. The titanium alloy plate as a material is gradually deformed downward by the downward suction force of Each part is heated and softened without being oxidized and is formed into a denture coining base by natural deformation. The denture coining base formed in this way has less variation in plate thickness, and
High precision can be obtained. In addition, the molded container was constructed so that the lid was inserted into the heating furnace and pressed against the container body by a pressing tool driven by a cylinder outside the heating furnace. The ring provides sufficient airtightness and is therefore extremely durable. Furthermore, the heating furnace is equipped with a blower pipe and an exhaust pipe, and is configured to forcibly cool the molded container after forming the titanium alloy plate into the denture coining base, resulting in extremely high production efficiency. can get.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the present invention, in which A is a cross-sectional view of the overall arrangement, B is a cross-sectional view of a molded container, C is a front view of a transfer tool, and FIG. D is a side view of FIG. 2B, and FIG. FIG. 2 is a diagram illustrating a coining base for a denture, in which A is a plan view and B is a sectional view taken along the line A-A. DESCRIPTION OF SYMBOLS 1... Molded container, 11... Lid, 111... Heat-resistant O-ring, 12... Container body, 121... Spacer, 13... Teeth mold, 14... Inert gas feed pipe,
15...Exhaust pipe, 2...Heating furnace, 21...Blow pipe, 22...Exhaust pipe, 23...Door, 3...Press tool, 31...Press rod, 32...Cylinder, 33...
...Support stand, 4...Transfer device, 41...Guide plate, 42
...Table, 43...Pedestal, 44...Rotating wheel.

Claims (1)

[Claims for Utility Model Registration] (1) A molded container, a heating furnace for accommodating the molded container, and the molded container inserted into the heating furnace from above and housed in the heating furnace. It consists of a pressing tool that presses the lid of the container against the container body, and a transfer tool that moves the molded container in and out of the heating furnace. A coining bed manufacturing apparatus for a titanium alloy denture, wherein a supply pipe is provided with an exhaust pipe at the bottom, and a blow pipe and an exhaust pipe are provided in the heating furnace. (2) The transfer device places the molded container on a pedestal provided on a table that slides on a guide plate, and a pedestal provided on the outside of the door of the heating furnace and capable of raising and lowering to support the table. 1. A coining bed manufacturing device for titanium alloy dentures as described in Paragraph 1 of the Utility Model Registration, which comprises a rotary wheel. (3) The apparatus for manufacturing a coining bed for a titanium alloy denture according to claim 1, wherein the molded container is rotatably provided on the base.