KR101762533B1

KR101762533B1 - Flask for molding denture with check valve

Info

Publication number: KR101762533B1
Application number: KR1020160019988A
Authority: KR
Inventors: 남두석
Original assignee: (주) 디케이 문교
Priority date: 2016-02-19
Filing date: 2016-02-19
Publication date: 2017-07-27

Abstract

The present invention relates to a denture molding flask equipped with a check valve, wherein the left and right bodies 110 and 120 are combined by manufacturing a denture augment, and a resin injection port 104 through which the resin is injected, 120 are coupled to each other and are formed at a position spaced apart from the resin injection port 104 by a predetermined distance between the resin injection port 103 and the left and right bodies 110, A denture shape formed of wax is inserted into the hollow part 101 and a denture shape formed of wax is inserted into the hollow part 101. After the denture shape is inserted into the hollow part 101, A wax discharge port 106 through which the molten wax is discharged is formed on the bottom surface of the coupling portion of the left and right bodies 110 and 120 and a portion of the hollow space after the denture is melted is inserted through the resin injection port 104 Resin Ltd A flask for forming a tooth, provided with a check valve which is inserted and refilled,
A check valve 10 is coupled to the resin injection port 104 to prevent deformation of the product due to contraction of the resin and a drop in internal pressure.
Since the check valve is provided on the upper portion of the denture molding flask equipped with the check valve of the present invention, the denture auxiliary product is manufactured. The denture augmentation product is prevented from being deformed due to the shrinkage of the resin and the internal pressure drop during the resin inserting process and the thermal polymerization process, There is a remarkable effect of manufacturing this good dental prosthesis.

Description

[0001] Flask for molding denture with check valve [0002]

The present invention relates to a denture molding flask equipped with a check valve, and more particularly, to a denture molding flask equipped with a check valve, and more particularly to a flask having a check valve, And a check valve for preventing deformation of the flask.

In general, the flask is used to form a bone by adjusting the dentition, which is a toothed aid, to the teeth of the user. Normally, the denture moves the bone of the user's tooth using an impression material and casts the denture based on the bone.

In general, denture is a dental prosthesis that restores one or more natural teeth if they are missing.

In order to produce such a denture prosthesis, a wax denture is first made, and the functional and aesthetic properties are confirmed by visualizing it in the oral cavity of the patient. In the case where there is no problem, the remaining part except for the artificial teeth The process of manufacturing.

In this case, the wax denture is a kind of provisional denture made for the purpose of confirming the relation of esthetics, occlusion, pronunciation and the like in the oral cavity of the patient prior to completion of the preparation of the denture or the denture prosthesis as final local teeth. It is called "蠟義齒" because the artificial teeth are arranged on the base plate and the dentures are made of wax.

In order to prepare the lead teeth with the final dentures, firstly, the lead teeth are buried in a flask, the wax is softened by heating the flask in hot water while the flask is separated and the resin separator And the flask is reassembled.

Then, a sufficiently mixed resin of various colors in a dough state is injected into the flask, heat-polymerized sufficiently, the denture molded by the resin is taken out from the flask, and finishing and polishing are performed Dentures are made.

[0002] A conventional catalytic burner and a flask with the same (Patent Registration No. 10-0479199) are related to a catalytic combustion burner made of a porous material, and a lower portion thereof is provided with a core designed to transport a flammable liquid to the burner There is provided an annular peripheral zone with a catalyst surrounding a substantially axial cavity for receiving and a central zone without a catalyst forming a vaporizing zone thereabove. An upper portion of the burner has an open channel communicating an upper portion of the cavity with the outside air.

According to another prior art 'Denture molding flask' (Registration No. 10-0548957), the denture molding flask is inserted into a hollow portion formed by a fastening bolt to insert a molten material through the injection port, , Wherein the boss is provided with an injection pipe, an ejector, a pore, a guide, and a nut fitted to the fastening bolt; An injection tube, an ejector, a pore, a guide hole, and a bushing through which a fastening bolt is passed; A pressing portion which is composed of a pressing piece which is engaged with both ends of the spring and which can be received in a compressed state in the connecting pipe via the cap nut; And a fourth inserting member provided on the upper portion of the hollow portion of the lower portion, and a second inserting member provided on the inlet, a second inserting member provided on the connecting pipe, a third inserting member provided on the pressing portion, And a conduit portion that communicates with the conduit.

However, in the conventional product as described above, there is a problem that the manufacturing time is long and the working environment is unclear by dividing the flask during wax removal and resin inserting process during the process of manufacturing the dental assistant.

Further, when the divided flasks are fixed with the clamp after the resin is inserted, there is a problem in that the efficiency of the operation is low, for example, since the dental prosthesis is deformed, a numerical error is generated, and the dental prosthesis must be manufactured again.

Accordingly, the applicant of the present invention has solved the above problems and has been registered with the patent registration No. 10-1383037 for forming a denture molding flask. As described in the claims, the denture aids are manufactured by combining the left and right bodies, The resin injection port into which the resin is injected is formed in the upper joint portion to which the left and right bodies are coupled and the mast entrance for injecting the gypsum as a for-profit material is formed at a position spaced apart from the resin injection port by a predetermined distance, A denture shape of a wax material is inserted into the space portion, a dirt material is injected from the dirt entrance opening of the mall, a denture form formed of wax in the hollow portion, and a molten wax is discharged when the dirt material is inserted and then heated A wax discharge port is formed on the bottom surface of the engaging portion of the left and right bodies, and a wax discharge port is formed in the empty space portion after the denture phase is melted In the flask for biomedical molding that the resin has been filled with the injection material through said resin inlet, the resin injection port is coupled is semicircular and trapezoidal shape of the right body of the left body,

Shaped support protrusions are formed on the inner side surface of the right side body so that the hollow portion of the right side body is horseshoe shaped. In order to check the amount of the dwelling material injected through the property re-entrances into the left and right side bodies, Holes are formed in one of the left and right corners of the left and right sides of the left and right sides of the left and right main bodies, Wherein the flask is a dental floss.

However, in the prior art, in the process of thermally polymerizing the resin after the resin injection, in the process of shrinking the product or removing the nozzle after the injection of the product and sealing the cap with the cap, the resin inside the flask is deformed by contact with the outside, There was a downside to this.

Accordingly, the present invention has been devised to overcome the above-mentioned problems, and a check valve is provided on the upper part to prevent the deformation of the product due to the contraction of the resin and the internal pressure drop during resin insertion and thermal polymerization process And to provide a false-tooth forming flask equipped with a check valve of good quality.

The present invention relates to a denture molding flask equipped with a check valve, wherein the left and right bodies 110 and 120 are combined by manufacturing a denture augment, and a resin injection port 104 through which the resin is injected, 120 are coupled to each other and are formed at a position spaced apart from the resin injection port 104 by a predetermined distance between the resin injection port 103 and the left and right bodies 110, A denture shape formed of wax is inserted into the hollow part 101 and a denture shape formed of wax is inserted into the hollow part 101. After the denture shape is inserted into the hollow part 101, A wax discharge port 106 through which the molten wax is discharged is formed on the bottom surface of the coupling portion of the left and right bodies 110 and 120 and a portion of the hollow space after the denture is melted is inserted through the resin injection port 104 Resin Ltd A flask for forming a tooth, provided with a check valve which is inserted and refilled,

A check valve (10) is coupled to the resin inlet (104) to prevent deformation of the product due to shrinkage of the resin and a drop in internal pressure.

Therefore, the check valve is installed on the upper portion of the toothpaste flask equipped with the check valve of the present invention, so that the process of manufacturing the dental prosthesis can prevent the deformation of the resin due to the contraction of the resin and the internal pressure drop during the resin inserting process and the thermal polymerization process There is a remarkable effect of producing a dental prosthesis of good quality.

1 is a perspective view of a conventional denture molding flask
FIG. 2 is a perspective view showing the assembling of a conventional denture molding flask
Fig. 3 is a cross-sectional view of a conventional denture molding flask
4 is a plan view of a conventional denture molding flask
5 is a bottom photograph of a conventional denture molding flask
6 is a front view of a conventional denture molding flask
7 is a perspective view of a denture molding flask equipped with a check valve according to the present invention
8 is a photograph of a denture molding flask equipped with a check valve according to the present invention

The check valve 200 includes a body 210 having upper and lower holes 211 and 212 at upper and lower portions thereof, a cover 220 installed at an upper portion of the body 210 and having a hole formed at the center thereof, 210, and a ball 230 which moves up and down.

In addition, the body lower hole 212 is provided with support pieces 214 in a lattice shape so that the ball 230 is not separated through the lower hole 212 by the support piece 214.

The hole 220 of the cover 220 is formed to be smaller than the diameter of the ball 230 so that the ball 230 is not separated by the hole formed in the cover 220.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a conventional denture molding flask, Fig. 2 is an assembled view of a conventional denture molding flask, Fig. 3 is an inner cross-sectional view of a conventional denture molding flask, 6 is a front view of a conventional denture molding flask, Fig. 7 is a perspective view of a denture molding flask equipped with a check valve of the present invention, Fig. 8 is a perspective view of a check valve Is a photograph of a denture molding flask equipped with an injection molding machine.

In the present invention, the left and right main bodies 110 and 120 are coupled to each other by fabricating a dental prosthesis, and a resin injection port 104 through which the resin is injected is formed in the upper coupling portion where the left and right bodies 110 and 120 are coupled.

And an estate entrance 103 through which a gypsum as a commercial material is injected is formed at a position spaced apart from the resin injection port 104 by a predetermined distance.

A space portion is formed in the left and right bodies 110 and 120, and a dummy of a wax material is inserted into the space portion, and a for-sale material is injected from the property entrance 103.

A wax discharge port 106 through which the molten wax is discharged is formed on the bottom surface of the coupling part of the left and right bodies 110 and 120 when the denture shape formed of wax is formed in the hollow part 101 and the molten wax is discharged when the dwelling material is inserted and heated.

In addition, resin is injected through the resin injection port 104 to be filled in the hollow space after the denture phase is melted.

A technical feature of the present invention is that a check valve 10 is coupled to the resin injection port 104 to prevent deformation of the product due to shrinkage of the resin and decrease in internal pressure.

The check valve 200 includes a body 210 having upper and lower holes 211 and 212 at upper and lower portions thereof, a cover 220 provided at an upper portion of the body 210 and having a hole formed at the center thereof, And a ball 230 inserted in the inside and moving up and down.

The hole of the cover 220 is formed to be smaller than the diameter of the ball 230 so that the ball 230 is not released into the hole formed in the cover 220.

In addition, the body lower hole 212 is provided with support pieces 214 in a grid shape so that the ball 230 is not separated through the lower hole 212 by the support piece 214.

In addition, the diameter of the ball is smaller than the inner diameter of the body, so that the resin injected through the upper hole is not blocked by the ball but is introduced into the flask through the lower hole.

Therefore, when the resin is injected for the first time, the ball is positioned at the bottom by the injection pressure, the lower hole is formed larger than the ball, and the resin passes through the lattice type gap formed in the lower hole, Lt; / RTI >

When the resin is injected, the inside of the flask becomes temporarily sealed by the check valve installed in the flask.

That is, even if the volume of the resin injected into the flask is thermally polymerized and the volume is slightly contracted, the pressure inside the flask becomes higher because the resin is injected at a high pressure.

At this time, when resin injection is completed in a state where the pressure inside the flask is increased, the ball of the check valve rises from the lower hole to temporarily seal the inside of the flask.

Therefore, the resin inside the temporarily sealed flask is thermally polymerized by the pressure inside the flask, and the density becomes high.

Therefore, when the inside of the flask is sealed, the deformation of the product due to the contraction of the resin and the internal pressure drop is prevented by the check valve in the present invention.

At a certain pressure or higher, the ball rises to the upper hole and then stops, thereby blocking the upper hole, thereby achieving safety.

The check valve may be coupled to the flask resin inlet 104 by welding or interference fit.

Therefore, the check valve is installed in the upper part of the toothpick flask provided with the check valve of the present invention. In the process of manufacturing the dental prosthesis, the resin inside the flask is not brought into contact with the outside There is a remarkable effect of manufacturing a dental prosthesis having a good quality by preventing deformation.

On the other hand, the structure of the flask for denture molding used in the present invention will be described on the basis of the denture-molding flask of Registration No. 10-1383037 previously registered by the present applicant.

The denture molding flask of the present invention is formed on a top surface of the flask and includes a resin injection port into which a resin is injected, an artificial material inlet formed on an upper surface of the flask and into which a material for sale is injected, And a wax discharge port formed on a bottom surface of the flask for discharging the wax.

As shown in FIG. 1, the flask is formed in a rectangular box shape and is coupled to a pair of left and right sides. The flask is composed of a left body and a right body, Are joined and separated by fastening bolts and nuts.

That is, as shown in FIG. 3, four fastening holes are formed at positions corresponding to each other in the left body and the right body, and fastening bolts are inserted into the fastening holes, The nut is engaged with the fastening bolt, so that the left body and the right body are combined.

3, the right body is formed with a pair of coupling protrusions, and a coupling body is formed on the left body corresponding to the coupling protrusions. The coupling protrusions and the coupling groove are formed in the right body, So that the left body can be more firmly coupled.

Further, as shown in FIG. 3, the left body and the lower left side of the right body are formed with beakers, so that the lower edges are easily scraped, thereby facilitating the attachment and detachment of the left and right bodies.

In other words, when the left body and the right body are joined to each other in a mutually corresponding manner, the corner of the closure and the corner without clipping come into contact with each other, thereby facilitating the engagement and disengagement of the left and right bodies.

As shown in FIG. 3, the hollow portion of the right side body is formed with a support protrusion, so that the hollow portion of the right side body is formed into a horseshoe shape .

Further, the support protrusions can reduce the main injection of the investment material when the investment material is injected into the flask. In other words, the investment material is not injected into unnecessary positions by the support protrusions, thereby saving the investment material.

That is, a denture shape formed of wax is inserted into a horseshoe-shaped hollow portion formed on the right side body, and the right side body and the left side body are coupled by a fastening bolt and a nut.

On the other hand, the upper surface of the flask is provided with a merchandising inlet, a resin inlet, and a guide hole. The merchandise inlet, the resin inlet, and the guide hole are connected to the hollow portion of the flask.

That is, when the gypsum (investment material) is injected into the investment material insertion port, the gypsum is injected into the hollow portion of the flask. At this time, the operator looks at the guide hole formed on the top surface of the flask, .

A wax outlet is formed on the lower surface of the flask, and the wax inserted into the flask is discharged through the wax outlet.

When the flask is heated by a separate heating device, the solid wax melts and becomes a liquid, so that the liquid flows down in the downward direction.

That is, after the gypsum is inserted into the investment material insertion port and the gypsum is solidified, the flask is heated by a separate heating device, so that the solid wax inserted into the flask is melted and discharged through the wax discharge port And is discharged to the outside.

That is, the wax discharge port allows the liquid flowing downward to be discharged to the outside of the flask, and the wax discharge port is not required to divide the flask during the process of removing the wax.

After the wax is discharged to the outside of the flask, resin is injected into the resin injection port formed on the upper surface of the flask, and the resin is injected into the hollow portion of the flask through the resin injection port.

The process of forming the denture by the denture-shaping flask according to the present invention will now be described.

First, a denture shape formed of wax is inserted into a horseshoe-shaped groove formed in the right side body, and the right side body and the left side body are coupled by a fastening bolt and a nut.

Then, the gypsum is inserted into the investment material insertion port formed on the upper surface of the flask. At this time, the operator looks at the guide hole formed in the upper surface of the flask, so that the degree of the investment material inside the flask can be known.

After the gypsum is solidified, the flask is heated by a separate heating device, so that the solid wax inserted into the flask is melted and discharged to the outside of the flask through the wax outlet, and after the wax is discharged The resin is injected into the resin injection port formed on the top surface of the flask.

That is, the denture-molding flask of the present invention is capable of producing dentures having a small deviation of dentition from existing teeth by not dividing the flask during the wax removal and the process of inserting the resin.

The resin injection port 104, into which the resin is injected, is formed in the upper joint portion where the left and right bodies 110 and 120 are coupled, and the left and right bodies 110 and 120 are coupled to each other. A housing re-entry opening 103 into which a gypsum for sale is injected is formed at a position spaced apart from the resin injection opening 104 by a predetermined distance. A space portion is formed in the left and right bodies 110 and 120, A denture formed on the hollow portion 101 by wax, and a wax for discharging molten wax when the dwelling material is heated after the dwelling material is inserted, And a discharge port 106 is formed on the bottom surface of the engaging portion of the left and right bodies 110 and 120.

The resin injection port 104 is formed in a semicylindrical shape of the left body 110, and a resin injection hole 104 is formed in the semi- The trapezoidal shape of the right body 120 is'

Shaped support protrusions 121 are formed on the inner surface of the right side body 120. The hollow portion 101 of the right side body 120 is horseshoe shaped, As shown in FIGS. 3, 5 and 6, the left side body 110 is provided with a guide hole 105 in a semicircular shape so that the amount of the dumping material injected through the re-entry opening 103 can be checked. The right body 110 and the right body 120 do not have a fillet formed at the corners of the left body 110 and the

right body

120, 120 can easily be attached and detached.

100: Denture molding flask
101: hollow part 102: fastening hole
103: Property entrance 104: Resin inlet
105: guide hole 106: wax outlet
107: fitting groove 108: resin injection groove
110: left body 111: engaging groove
120: right body 121: support projection
122: engaging projection
200: check valve 210: body
211, 212: upper and lower holes
214:
220: Cover 230: Ball

Claims

A resin injection port 104 into which the resin is injected is formed in an upper joint part where the left and right bodies 110 and 120 are coupled to each other and a gypsum A dummy entry hole 103 is formed at a position spaced apart from the resin injection port 104 by a predetermined distance. A space portion is formed in the left and right bodies 110 and 120, and a wax- And a wax discharge port 106 through which the molten wax is discharged when the dwelling material is heated after the dwelling material is inserted into the hollow part 101. The wax discharge port 106, And a check valve is formed in the bottom surface of the coupling part of the left and right bodies 110 and 120 and the cavity is filled with the resin through the resin injection port 104 after the denture is melted, ,
A check valve 200 is coupled to the resin injection port 104 to prevent deformation of the product due to shrinkage of the resin and decrease in internal pressure.
The check valve 200 includes a body 210 having upper and lower holes 211 and 212 at upper and lower portions thereof, a cover 220 provided at an upper portion of the body 210 and having a hole formed at the center thereof, And a ball 230 inserted in the inside and moving up and down,
The support member 214 is provided in the lower body hole 212 in a grid shape so that the ball 230 is not separated from the lower hole 212 by the support piece 214,
The diameter of the ball 230 is smaller than the inner diameter of the body 210 so that the resin injected through the upper hole 211 is drawn into the flask through the lower hole 212 without being blocked by the ball 230 When the resin is injected for the first time, the ball 230 is positioned at the lower part by the injection pressure and the lower hole 212 is formed to be larger than the ball 230, The resin passes through the gap between the grid-shaped support pieces 214 formed, is drawn into the inside of the flask,
The inside of the flask is temporarily closed by the check valve installed in the flask while the resin is injected. Even if the volume of the resin injected into the flask is thermally polymerized and the volume is slightly contracted, the pressure inside the flask becomes high As a result,
At this time, when the injection of the resin is terminated while the pressure inside the flask is increased, the ball 230 of the check valve rises from the lower hole to temporarily seal the inside of the flask, The density is increased while being thermally polymerized by the pressure of < RTI ID = 0.0 >
When the inside of the flask is sealed, the product is prevented from being deformed due to the contraction of the resin and the internal pressure drop through the check valve. At a certain pressure or more, the ball 230 rises to the upper hole and then stops, So that a safety is ensured.

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