JP2010099289A - Molding mold for dentures or the like, molded article and molding method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mold a beautiful molded article without the need of finish polishing of the molded article such as dentures. <P>SOLUTION: Liquid glass 5 is put as a separating agent on the inner surface of molding molds 2 and 3 of plaster molds of the molded article 6 of the dentures or the like. The upper die and lower die of the molding molds 2 and 3 for which the liquid glass 5 is put on the inner surface as the separating agent are made to face each other, and the void part 7 is filled with a prescribed filler 8 for the dentures to mold the molded article 6 of the dentures or the like. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a mold, a molded article, and a molding method thereof for dentures in the field of artificial teeth and the like, as well as in the field of decorative articles and favorite articles.

  With the recent aging of the population, the number of denture wearers has increased, and injection molding, extrusion molding, and compression molding have been performed as methods for producing this denture. In these methods, a plaster mold molded in a predetermined tooth shape is placed in a flask, and a denture filler made of a predetermined synthetic resin material is injected, extruded, and molded.

  At that time, a separating agent is applied to the surface of the gypsum mold in advance to facilitate separation of the filler to be molded from the gypsum mold. Then, the denture is separated from the plaster mold by molding, and the surface of the denture is manually polished to finish.

  As a result of patent research, JP-A-10-287522 discloses a denture temporary denture base material and a denture manufacturing method for replacing a temporary denture base with a denture base material that can be used very easily for a long period of time. . However, although it is described that the material is given flexibility and a plastic material to facilitate separation from the gypsum mold, the denture is taken out after the material is hardened and polished according to a common method. .

Japanese Patent Application Laid-Open No. 7-184935 discloses that when a denture base is molded, an apparatus for automatically applying a separating agent to a gypsum model is used so that manual work can be performed automatically and efficiently. Yes. However, even with this separating agent application device, the denture base surface becomes smooth and glossy spots are eliminated, increasing the commercial value. However, since the separating agent is conventionally made of synthetic resin such as paraffin, The surface had to be polished manually to increase the value of the product.
Japanese Patent Laid-Open No. 10-287522 JP-A-7-184935

  In addition, plastic products rings, pendants, accessories such as accessories, practical products such as eyeglass frames and helmets, plastic models, and plastic goods, and plastic goods toys, etc. The surface for increasing the height was manually polished, which was time-consuming.

As described above, since the surface of the molded product is manually polished and finished by molding dentures or the like, it takes time for molding and variations in quality are likely to occur in polishing.
Therefore, there is no need to polish the finished product, and it has been a problem to form a uniform and beautiful product.

  The present invention has been made in view of the above points, and in order to solve the above problems, as a result of trial manufacture and research using various separating agents, it has been found that it is preferable to use liquid glass. A mold for dentures, etc., characterized in that the surface of a mold such as a plaster mold for dentures, organic products such as plastics, or a decorative product is coated with liquid glass as a separating agent In offer.

  Another object of the present invention is to provide a mold for dentures and the like in which liquid glass is coated as a separating agent on the inner surfaces of the upper mold and the lower mold.

  Furthermore, the molded product was molded using a plaster mold such as a denture whose inner surface was coated with liquid glass as a separating agent, and a mold such as a decorative product for organic products such as plastics or a favorite product. To provide a molded product for dentures and the like.

  Furthermore, a gypsum mold such as a denture whose inner surface is coated with liquid glass as a separating agent, and an upper mold and a lower mold of an organic product such as a decorative product or a favorite product such as plastics are opposed to each other. The object of the present invention is to provide a method for forming a denture or the like, which is characterized in that a predetermined product is formed by loading a predetermined filler into the cavity.

  Furthermore, there is provided a denture molding method characterized by molding a denture by applying liquid glass as a separating agent to the inner surface of the gypsum mold after the artificial tooth has been once positioned on the denture mold of the denture. It is in.

  Molded products for dentures and the like of the present invention are obtained by coating liquid glass as a separating agent on the surfaces of gypsum molds such as dentures, and molds such as decorative products and preferred products of organic products such as plastics. When a molded product is molded through this mold, the liquid glass of the separating agent is heat resistant and has a hard and dense surface, so even if a molded product such as a denture molded from the mold is taken out, The surface is glossy and clean, eliminating the need for polishing and finishing, eliminating the hassle and achieving a uniform finish.

  And by coating liquid glass as the separating agent on the inner surface which is the molding surface of the upper mold and lower mold of the mold, the surface and the back surface of the molded product such as dentures are glossy and clean as described above. This eliminates the need for polishing and finishing, and eliminates time and effort to achieve a uniform finish.

  In addition, by molding a molded product using a gypsum mold such as a denture whose inner surface is coated with liquid glass as a separating agent, or a mold such as a decorative product or a favorite product of organic products such as plastics, A molded product such as a denture that does not need to be polished and finished as described above can be obtained.

  Further, the cavity is formed by facing the upper and lower molds of a plaster mold such as a denture with an inner surface coated with a liquid glass as a separating agent, and decorative or preference products such as plastics and other organic products. A molded product such as a denture that does not need to be polished and finished as described above can be obtained by charging the part with a predetermined filler and molding the molded product.

  Furthermore, once the artificial tooth has been positioned in the denture plaster mold, the artificial tooth is removed by applying liquid glass as a separating agent to the inner surface of the plaster mold, and the artificial tooth is removed. Thus, a denture that does not need to be polished and finished can be obtained.

  Molds for dentures and the like of the present invention are coated with liquid glass as a separating agent on the surface of molds for plaster molds such as dentures, organic products such as plastics, decorative products, practical products and preference products. It is characterized by that.

  The molded products for dentures of the present invention include plaster molds such as dentures coated with liquid glass on the inner surface as a separating agent, and molds such as decorative products and favorite products of organic products such as plastics. It is characterized in that it is used to form a molded product.

  Furthermore, the molding method for dentures and the like of the present invention includes a gypsum mold such as a denture whose inner surface is coated with liquid glass as a separating agent, and a mold such as a decorative product for organic products such as plastics and a favorite product. The upper mold and the lower mold are opposed to each other, and a predetermined filler is charged into the cavity to mold a molded product.

  A mold 1 such as a plaster mold for dentures is formed by molding a predetermined tooth form as shown in FIG. 1 and manufacturing upper and lower plaster molds 2 and 3 according to a required procedure. A required artificial tooth 4 is attached to the mold 2 and a liquid glass 5 is thinly applied as a separating agent to the surface which is the inner surface of the molding surface excluding the artificial tooth 4 to form a denture molded product 6. ing.

  The liquid glass 5 is composed of silicon dioxide as a main component and is in a liquid state at room temperature. The liquid glass 5 is mixed with a reaction curing agent, an additive, and the like, and is cured at room temperature after a predetermined time has elapsed after application. It becomes ordinary glass, has heat resistance, is hard, has a dense surface, and excellent adhesion.

  When the liquid glass 5 is applied to the inner surfaces of the gypsum molds 2 and 3 as shown in FIG. 1, the viscosity can be several cP to 500 cP, but 100 to 500 cP, preferably 10 to 10 cP. About 200 cP is desirable because it can be applied uniformly to the required thickness. If the viscosity is lower than several cP, the coating film is too thin and not preferable, and if it is higher than 500 cP, the coating is too viscous and difficult to apply.

  As a method of applying the liquid glass 5, it can be performed with a brush or a brush as in the past, but it can be coated and applied using a hand spray or a spray can. If a hand spray or a spray can is used, Can be applied quickly and uniformly.

  At that time, the gypsum mold 2 is masked with a masking material such as an adhesive sheet cut into a predetermined shape on the bottom surface of the artificial tooth 4 and liquid glass is applied to the inner surfaces of the gypsum molds 2 and 3. 5 is preferably applied because it is easy to apply, and the artificial tooth 4 is once positioned in the gypsum mold 2 and then the artificial tooth 4 is removed and the liquid glass 5 is applied to the inner surfaces of the gypsum molds 2 and 3. Is preferable because it is easier to apply.

  In this way, the liquid glass 5 is applied to the inner surfaces of the gypsum molds 2 and 3 and the gypsum molds 2 and 3 are joined as shown in FIG. When the denture filler 8 is filled and hardened and taken out from the gypsum molds 2 and 3, the front and back surfaces of the denture molded product 6 molded as shown in FIG. 3 are glossy and clean. This eliminates the need for polishing and finishing, and eliminates time and effort to produce a uniform quality.

  In the above, denture molding was explained, but implants, prosthetic hands and artificial legs, artificial joints, artificial breasts, artificial eyes, plastics and silicone products rings and pendants, accessories and other decorative items, eyeglass frames and helmets and other practical products It is also possible to apply to preferred products such as plastic models and plastic toys if they are molded in the same manner, and the above-mentioned purpose of the present invention is also applicable to molds, wooden molds, and earth molds as molding molds. It is applicable based on the range of

  1 to 3 show the molding of a denture according to an embodiment of the present invention. A denture plaster mold 1 is formed by molding a predetermined tooth profile as shown in FIG. Gypsum molds 2 and 3 are manufactured, and a required artificial tooth 4 is attached to the mold 2 and a liquid glass 5 is thinly applied as a separating agent to the inner surface excluding the artificial tooth 4 to form a denture molded product 6 Is formed.

  The liquid glass 5 may be obtained by diluting Terios Coat (manufactured by Nikko Co., Ltd.) twice with a stock solution or isopropyl alcohol and applying the brush to the inner surfaces of the molding surfaces 2 and 3 of the gypsum mold. it can. Hand sprays and spray cans can be used, and hand sprays and spray cans are preferred because they can be applied quickly and uniformly.

  In this way, the liquid glass 5 is applied to the inner surfaces of the gypsum molds 2 and 3 (twice if necessary), and the gypsum molds 2 and 3 are joined as shown in FIG. 7 is filled with a plastic material filler 8 of a predetermined denture, and when it is taken out from the gypsum molds 2 and 3 after curing, the front and back surfaces of the denture molded product 6 molded as shown in FIG. It is a clean and beautiful product that eliminates the need for polishing and finishing.

  Since the gypsum mold is hygroscopic, it is preferable to apply the liquid glass 5 as a stock solution, and the gypsum mold is preliminarily set to 20 to 50 ° C., preferably 30 to 40 ° C., more preferably 30 to 35 ° C. It is desirable to heat it in view of the working environment, the applied liquid glass 5 is easy to dry, and the working time can be shortened. Of course, the liquid glass 5 can be dried at the above temperature after coating.

  FIG. 4 shows another embodiment of the present invention, in which the artificial tooth 4 is once positioned in the mold 2 of the denture mold 1 for the denture, and then the artificial tooth 4 is removed, The liquid glass 5 is applied to the inner surface of 3 as a separating agent. By doing so, the liquid glass 5 can be easily applied to the inner surfaces of the gypsum molds 2 and 3, and the cavity portion 7 is filled with the predetermined plastic denture filler 8 as described above. The denture molded product 6 which is glossy on the front and back surfaces, is clean, and does not need to be polished and finished can be formed.

  FIG. 5 shows still another embodiment of the present invention. In the mold 2 of the denture plaster mold 1, masking of an adhesive sheet that is cut into a predetermined shape on the bottom surface of the artificial tooth 4 is shown. The liquid glass 5 is applied to the inner surfaces of the gypsum molds 2 and 3 by masking with a material 9. By doing so, the liquid glass 5 can be easily applied to the inner surfaces of the gypsum molds 2 and 3, and when the liquid glass 5 is cured, the masking material 9 is removed, and the cavity 7 is formed as described above. Is filled with a predetermined plastics denture filling material 8 to form a denture that is glossy and beautiful on the front and back surfaces and does not need to be polished and finished. Masking the bottom surface of the artificial tooth 4 with a masking material 9 is preferable because it is easy to apply.

  In addition, as a coating method of the liquid glass 5, automatic coating means such as an automatic coating apparatus or a painting robot can be used, and modified modes can be appropriately implemented based on the gist of the present invention.

Side sectional view of a gypsum mold of one embodiment of the present invention, Sectional drawing for explanation of molding material filling same as above, Front view of the molded denture molded as above Side sectional view of a molding die of a plaster mold of another example same as above, Side sectional drawing of the shaping | molding die of the plaster mold of other Example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mold for dentures 2, 3 ... Mold 4 ... Artificial tooth 5 ... Liquid glass 6 ... Molded article 7 ... Cavity 8 ... Filler

Claims (5)

Molding for dentures, etc., characterized in that liquid glass is coated as a separating agent on the surface of molds for plaster molds such as dentures, organic products such as plastics, decorative products, practical products, and products of interest. Type. The mold for dentures or the like according to claim 1, wherein liquid glass is coated as a separating agent on the inner surfaces of the upper mold and the lower mold. It is characterized in that the molded product is molded using a plaster mold such as a denture whose inner surface is coated with liquid glass as a separating agent, or a mold such as a decorative product or a favorite product of organic products such as plastics. Molded products for dentures. Gypsum molds such as dentures coated with liquid glass on the inner surface as a separating agent, and upper and lower molds of organic products such as plastics and other organic products such as ornaments and preference products face each other in the cavity. A molding method for dentures or the like, comprising charging a predetermined filler to mold a molded product. The denture shaping | molding method of Claim 4 which apply | coats liquid glass as a separating agent to the inner surface of the gypsum type | mold which removed the artificial tooth after positioning an artificial tooth once in the denture type | mold of a denture, and shape | molds a denture.

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