KR101302338B1 - The fixed quantity mixing equipment for making a prosthetic appliance - Google Patents

Abstract

PURPOSE: A fixed-quantity mixing device utilized for manufacturing a dental prosthesis is provided to easily adjust the mixture ratio when mixing powdered alginate or plaster with water and kneading the same. CONSTITUTION: A fixed-quantity mixing device utilized for manufacturing a dental prosthesis includes a powder supply device discharging materials composed of one or more powdered materials as much as a user sets; and a body (1) in which a water supply device discharging water as much as the user sets is embedded inside. The water and the powdered materials are mixed and discharged via one end of the body. A power supply amount selection button (13), a water supply amount selection button (14), a mixing unit operation button (15) are arranged on the front surface of the body. The powder supply device includes a power storage container on the inner upper part of the body; a hopper continuously formed on the lower part of the power storage container; a transferring pipe which is horizontally extended from the underside of the hopper; a supply screw which is mounted in the transferring pipe; and a step motor controlling the rotation of the supply screw. The water supply device is composed of a water storage tank; a cylindrical base with an inlet on the lateral lower part and a fixed shaft in which a rotary blade is mounted on a central shaft; and a cylindrical cover member which is fitted into the base and includes an outlet in the upper side. The powered materials and the water supplied from the powder supply device and the water supply device are mixed and discharged by the mixing unit in which a transferring screw is embedded.

Description

The fixed quantity mixing equipment for making a prosthetic appliance

The present invention relates to a quantitative mixing device used in the production of a dental prosthesis, which will be described in more detail, in which the alginate or the plaster for making the tooth model is used to mix with water in the form of a powder. The present invention relates to a quantitative mixing device used to produce a dental prosthesis, which is developed to solve the problem of relying on the manual work of the dental technician so that the correct amount can be automatically mixed.

In general, in the process of manufacturing various prosthetics in the dentist, in order to obtain a model of the tooth from the patient, the alginate is first attached to the tooth, and then hardened for a predetermined period of time (impression). Pour involves obtaining the final tooth model.

Such alginate and gypsum are provided in powder form before mixing with water, and when used, they are mixed with water, and the mixing ratio of alginate or gypsum powder and water is determined by the producing company, so that the dental technician provides each company each time. It is common to work after checking the manual.

In particular, when mixing alginate and gypsum powder with water, the ratio varies every time according to the purpose or purpose of use. For example, if you want to obtain an elaborate impression when taking impressions, you can mix more ratios of water to make it softer. In general, the first model (the first model during the prosthesis manufacturing process) uses pumice gypsum, and the final model (the model modified after comparison with the actual teeth of the patient after making the first, second, etc. model) is cemented carbide. Gypsum will be used, and the mixing ratio of water should be different in order to distinguish hard gypsum and cemented gypsum.

Therefore, in the above situation, the mixing of alginate or gypsum powder and water is made entirely by hand using measuring cups or spoons provided by the dental technician, and in this case, accurate mixing does not occur.

If it is not mixed correctly, it may be difficult to obtain accurate impressions, and the final model may be damaged.If some of the remaining alginate or gypsum powder is exposed to the outside, it may not be hardened depending on the surrounding environment. It is thrown away.

Korea Patent Registration No. 10-0135520-0000 (January 14, 1998) Republic of Korea Patent Publication No. 10-2001-0113563 (December 28, 2001) Korea Utility Model Registration No. 20-0385349-0000 (May 19, 2005)

The present invention was developed to solve the above problems, and developed a quantitative mixing device used in the production of a dental prosthesis to easily control the mixing ratio when kneading powdered alginate or gypsum with water It is in doing it.

In order to achieve the above object, the present invention is a powder supply device for discharging only the amount set by the user of the material consisting of one or more substances in the powder form, and a water supply device for discharging only the amount set by the user is built-in A quantitative mixing device having a body to mix and discharge water and powder to one end of the body;

A front surface of the body includes a powder supply amount selection button, a water supply amount selection button and a mixing unit operation button;

The powder supply apparatus includes a powder storage container at an inner upper portion of the body, a hopper continuously formed at a lower end thereof, a transfer pipe extending horizontally from a lower end of the hopper, and a supply screw mounted to the transfer tube, and the supply screw. It is composed of a step motor for adjusting the rotation of;

The water supply device is equipped with a water storage tank, and a space portion is formed therein, the inlet through which water is introduced at the lower end of one side is extended and a plurality of blade pieces are radially formed to be rotated in the space portion Cylindrical base having a shaft fixed to the central axis, and the upper cover is provided in the upper direction so that the water flowing from the inlet is discharged while sealing the space portion is formed in the cylindrical cover member so as to fit the base Consisting of;

The powder and water supplied from the powder supply device and the water supply device are mixed and discharged by the mixing unit in which the transfer screw is embedded.

In addition, the powder supply device and the water supply device is mounted on the inner upper portion of the body;

The mixing unit is a first mixing tube having a cylindrical tubular shape in which the powder and water supplied to one end is supplied and extends horizontally, and is mounted inside the first mixing tube while rotating while mixing the powder and water of one side. The first mixing screw comprising a first feed screw comprising a spiral first mixing blade to discharge to the side, and a cutting blade extending from the end of the first feed screw to rotate on the same axis to cut the mixture Wow;

A second mixing tube having a cylindrical tubular shape protruding outward from one end of one end of the first mixing tube to open the mixture cut by the cutting blade to one end, and the second 2, the second mixing blade having a pitch longer than the pitch of the first mixing blade and the end of the second mixing blade is integrally connected so that the cut mixture is rotated and mounted inside the mixing pipe, and the pitch gradually decreases. A second mixing part composed of a second conveying screw having a third mixing wing;

It is characterized by consisting of a motor for driving the first and second mixing unit.

As described above, the present invention discharges alginate or gypsum powder in a precisely set amount according to the needs of the user, and mixes the amount of water suitable for the dough so that the discharge is performed while reducing the time for the user, in particular, the technician to make the dough. You can mix and knead the required amount with a simple operation without the need to weigh with a spoon.

Figure 1 is a perspective view of an embodiment of the present invention.
2 is a cross-sectional view according to an embodiment of the present invention.
3 is a cross-sectional view showing a powder supply apparatus according to an embodiment of the present invention
4 is a sectional view showing a water supply apparatus according to an embodiment of the present invention
5 is a cross-sectional view showing a mixing unit according to another embodiment of the present invention.
6 is a use state diagram showing a mixing unit according to another embodiment of the present invention

Accordingly, the configuration of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

1 is a perspective view according to an embodiment of the present invention, Figure 2 is a cross-sectional view according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing a powder supply apparatus according to an embodiment of the present invention, Figure 4 As a cross-sectional view showing a water supply device according to an embodiment of the present invention, the powder supply device 11 for discharging only the amount set by the user of the material consisting of one or more substances in the powder form, and discharges only the amount of water set by the user In the quantitative mixing device having a body (1) in which a water supply device (12) to be built so as to mix and discharge water and powder to one end of the body (1);

On the front of the body (1) is provided with a powder supply amount selection button 13, a water supply amount selection button 14 and the mixing unit operation button 15;

The powder supply device 11 is a powder storage container 111 on the inner upper portion of the body 1, a hopper 112 continuously formed at the lower end thereof, and a transport extending horizontally formed at the lower end of the hopper 112. It consists of a supply screw 114 is mounted to the pipe 113 and the transfer pipe 113, and a step motor 115 for adjusting the rotation of the supply screw 114;

The water supply device 12 has a water storage tank 121, a space portion is formed therein, the inlet 122 is formed to extend the inlet 122 to the water inlet on one side lower end and a plurality of rotary blades are formed in a radial shape ( 123 is mounted and the cylindrical base 125, the shaft 124 is fixed to the central axis to be rotated in the space portion, and provided on the base 125 above the inlet 122 while sealing the space portion An outlet 126 is formed in an upward direction to discharge water introduced therefrom and is formed of a cylindrical cover member 127 to be fitted into the base 125;

The powder 5 and the water 6 supplied from the powder supply device 11 and the water supply device 12 are mixed and discharged by the mixing unit in which the transfer screw is embedded, and the quantitative mixing used for manufacturing the dental prosthesis. The device is shown.

The body 1 is provided with a powder supply device 11 for discharging only the amount set by the user of the material consisting of one or more substances in powder form, and a water supply device 12 for discharging only the amount set by the user. The quantitative mixing device provided to mix and discharge the water and powder to one end of the body (1) has been used a lot in the existing various fields.

The most common example is a large proportion of water, but in the case of a coffee vending machine, the coffee powder is mixed with a powdered coffee mix, and a predetermined amount of water and coffee are discharged to be mixed at a supply pressure.

In addition, a device for mixing and kneading water and powder for baking or plucking noodles can be said to be known, but there is a difference in kneading a large amount of dough at once.

The present application is provided with the powder supply device 11 and the water supply device 12 in such a quantitative mixing device, the powder supply amount selection button 13 and the water supply selection button 14 and the front of the body (1) and A mixing part operation button 15 to select a desired mixing ratio;

An embodiment is provided to effectively mix and knead the mixing unit under its inner side.

The powder supply device 11 is a powder storage container 111 on the inner upper portion of the body 1, a hopper 112 continuously formed at the lower end thereof, and a transport extending horizontally formed at the lower end of the hopper 112. It is composed of a supply screw 114 mounted on the pipe 113 and the transfer pipe 113, and a step motor 115 to adjust the rotation of the supply screw 114 according to the rotation of the supply screw 114. The amount of powder fed was set to be controlled.

At this time, the rotation of the feed screw 114 by the step motor 115 is to be rotated considerably slow so that the amount of powder (5) falling according to a certain rotation can be maintained in the correct amount.

In addition, the water supply device 12 is a water storage tank 121, and a space is formed therein, the inlet 122 is formed to extend the inlet 122 to the water flow in the lower end of one side and a plurality of blade pieces are formed in a radial shape A cylindrical base 125 in which a shaft 124 is fixed to a central axis so that the wing 123 is mounted and rotated in the space part, and the inlet opening is provided on the base 125 to seal the space part. An outlet 126 is upwardly formed to discharge water introduced from the 122 and is formed of a cylindrical cover member 127 to be fitted into the base 125.

At this time, in order to accurately detect the amount of water is installed in the water quantitative detection device in the line leading from the water storage tank 121 to the inlet 122, the rotation speed of the rotary blade 123 is rotated according to the amount of water to be supplied Allow the number to be controlled.

That is, when water is supplied at a constant pressure, assuming that the amount of water supplied is changed according to the rotation of the rotary blade 123, and 5 rotations for 10㏄ supply, the user of the water supply selection button 14 of the body (1) Press to set the supply amount is to be able to control the rotation of the rotary blade 123 by the magnetic force, that is magnetic or various other methods after calculating the amount of rotation of the rotary blade 123 in a separate control unit.

In other words, if the rotation is kept in a state that is normally suppressed by the magnet, the water is not supplied, but the magnetic force is changed so that the water introduced by the water pressure rotates the rotary blade 123 and detects this and rotates the magnetic force after a certain rotation. An embodiment is provided to operate in a way that the rotation of the blade 123 is stopped.

When the powder 5 and the water 6 are supplied in this way, the powder 5 and the water 6 are mixed with each other by the feeding screw, which is discharged to one side of the body 1.

5 is a cross-sectional view showing a mixing unit according to another embodiment of the present invention, Figure 6 is a state diagram showing a mixing unit according to another embodiment of the present invention, the mixing unit of the present application powder 5 and water supplied to one end (6) the first mixing tube 21 having a cylindrical tubular shape is supplied and horizontally extended, and the powder (5) and water (6) on one side while being mounted and rotated inside the first mixing tube 21 The first conveying screw 23 including the spiral first mixing blade 22 and the other end of the first conveying screw 23 so as to be discharged to the other side while mixing with each other. The 1st mixing part 2 comprised including the cutting blade 24 to cut | disconnect is provided.

Alginate or gypsum dough in the prosthetic manufacturing process is to knead only a small amount required for alginate or gypsum when mixing the initial powder (5) and water (6) is a method of rotating and kneading in a cylindrical device as in the prior art There was a problem that was difficult to use, and to solve this problem, the mixing and kneading is performed by using the method of the transfer screw. In the first mixing unit 2, the water is transferred by the path of the first mixing blade 22. (6) and powder (5) are mixed primarily.

However, even mixing can't be achieved with this mix, and some are very likely to have a lot of water and some are unmixed.

Therefore, the first kneaded mixture is finely cut by the cutting blades 24, and the first mixing unit 2 is prepared until the preparation step to easily mix the dough containing a lot and the dough that is not.

The finely divided mixture is preferably mixed to be stirred and mixed in a relatively spacious space, which means that one end of the first mixing tube 21 is opened so that the mixture cut by the cutting blade 24 is one end of the mixture. The second mixture pipe 31 having a cylindrical tubular shape projecting to the outside of the body 1, and the mixture cut while rotating while being mounted inside the second mixing pipe 31. A third mixing blade (31) having a pitch longer than the pitch of the first mixing blade (22) and the third mixing blade which is integrally connected at the end of the second mixing blade (32) but whose pitch is gradually reduced ( It consists of a second mixing section (3) consisting of a second transfer screw 34 having a 33).

At this time, since the pitch of the second mixing blade 32 is very large, stirring is performed in a wide space while moving, and thus a good mixing state is achieved. Then, in the third mixing blade 33, the pitch of the mixed mixture gradually decreases. By discharging under pressure, the primary kneading effect can be obtained.

The discharged mixture can be used after the craftsman kneads and forms several times by hand, which makes it easier for the dental technicians to make the mixing kneading process and to obtain the desired amount of the mixture more easily. will be.

1: Body
11: powder feeder
111: powder reservoir 112: hopper
113: transfer pipe 114: supply screw
115: step motor
12: water supply device
121: water storage tank 122: inlet
123: rotary blade 124: shaft
125: base 126: exit
127: cover member
13: powder supply selection button 14: water supply selection button
15: Mixer operation button
2: first mixing part
21: first mixing tube 22: first mixing wing
23: first feed screw 24: cutting blade
3: second mixing section
31: second mixing tube 32: second mixing wing
33: third mixing blade 34: second feed screw
4: motor
5: powder
6: water

Claims (2)

The body 1 is provided with a powder supply device 11 for discharging only the amount set by the user of the material consisting of one or more substances in powder form, and a water supply device 12 for discharging only the amount set by the user. In the quantitative mixing device for discharging by mixing water and powder to one end of the body (1);
On the front of the body (1) is provided with a powder supply amount selection button 13, a water supply amount selection button 14 and the mixing unit operation button 15;
The powder supply device 11 is a powder storage container 111 on the inner upper portion of the body 1, a hopper 112 continuously formed at the lower end thereof, and a transport extending horizontally formed at the lower end of the hopper 112. It consists of a supply screw 114 is mounted to the pipe 113 and the transfer pipe 113, and a step motor 115 to adjust the rotation of the supply screw 114;
The water supply device 12 has a water storage tank 121, a space portion is formed therein, the inlet 122 is formed to extend the inlet 122 to the water inlet on one side lower end and a plurality of rotary blades are formed in a radial shape ( 123 is mounted and the cylindrical base 125, the shaft 124 is fixed to the central axis to be rotated in the space portion, and provided on the base 125 above the inlet 122 while sealing the space portion An outlet 126 is formed in an upward direction to discharge water introduced therefrom and is formed of a cylindrical cover member 127 to be fitted into the base 125;
The powder 5 and the water 6 supplied from the powder supply device 11 and the water supply device 12 are mixed and discharged by the mixing unit in which the transfer screw is embedded, and the quantitative mixing used for manufacturing the dental prosthesis. Device. The powder supply device (11) and the water supply device (12) are mounted on the inner upper part of the body (1);
The mixing part is provided with a first mixing tube 21 having a cylindrical tubular shape in which the powder 5 and water 6 are supplied to the upper end of one end and extending horizontally, and inside the first mixing tube 21. And a first conveying screw 23 comprising a spiral first mixing blade 22 to discharge to the other side while mixing the powder 5 on one side and the water 6 while rotating, and the first conveying screw ( A first mixing section (2) comprising cutting blades (24) for extending and rotating on the same axis and cutting the mixture at the ends of 23);
One end lower end of the first mixing tube 21 is opened so that the mixture cut by the cutting blade 24 falls to one end and the other side has a cylindrical tubular shape projecting out of the body 1. A second mixing blade having a pitch longer than the pitch of the first mixing blade 22 so that the second mixing pipe 31 having an excitation and the mixture cut and rotated inside the second mixing pipe 31 are mixed. Second mixing portion 3 consisting of a second conveying screw 34 having a third mixing blade 33 is integrally connected at the end of the 32 and the second mixing blade 32, the pitch is gradually reduced Wow;
A fixed-quantity mixing device used for producing a dental prosthesis, characterized in that it comprises a motor (4) for driving the first and second mixing section (2, 3).

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