KR20190037809A - Apparatus for shutting a lid of pressure cooker in ramen vending machine - Google Patents

Abstract

The present invention relates to a pressure vessel sealing apparatus for a ramen vending machine which is an apparatus for sealing a pressure vessel installed in a ramen vending machine to cook ramen at high pressure. The pressure vessel sealing apparatus for a ramen vending machine comprises: a pressure vessel having a heater embedded in a floor to cook ramen; a pressure lid provided on an upper side of the pressure vessel and having an air hole for supplying hot water and compressed air and a steam discharge hole for discharging high-pressure steam formed thereon; and a motor screw jack driven by a driving motor to open and close the pressure vessel by ascending the pressure lid. The driving motor is a brake motor which can fix a rotation of a motor shaft when the pressure lid is closed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pressure vessel sealing apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pressure vessel sealing apparatus, and more particularly, to a pressure vessel sealing apparatus that includes a pressure vessel having a high pressure, The present invention relates to a pressure vessel sealing apparatus for a ramen vending machine capable of preventing leakage of pressure.

Generally, ramen is classified into a cup noodle which is prepared by pouring hot water into a ramen noodle which has already been cooked, a bag noodle which is prepared by adding soup into ramen noodles and boiling water, and adding various seasonings according to taste.

Among such ramen, if the cup noodle is prepared only hot water, it can be easily cooked and consumed in a short time in the outdoor, so that a vending machine capable of automatically selling cup noodles could be developed. In other words, in the case of cup noodles, it is possible to eat only boiling water before processing, so it can be eaten in 2 to 4 minutes by pouring hot water. It could be easily developed as a vending machine.

However, in such a cup, the automatic vending machine is a semi-automatic method in which the user must manually perform the process of injecting the hot water into the container, which is accompanied by inconvenience and inconvenience, and pouring hot water for taste or texture, There is a problem that can not be overcome much if you eat boiled bag. In other words, the cooking method of cup noodles has a disadvantage in that it is remarkably different from the ramen noodles in which the taste and texture of noodles are boiled and consumed in the way that they are eaten by hot water, unlike the case of a bag that is boiled for eating at home.

In recent years, a ramen vending machine capable of providing the same texture as instant noodles, which are automatically cooked and boiled, is being developed.

Korean Utility Model Registration No. 20-0307102 discloses that "a basket coupled by a support to a chain that is moved by the operation of a transfer motor allows the container to be supplied from a container delivery device while being linearly reciprocating, The rack is engaged with the rack by the rotation of the pinion connected to the elevating motor, and the lid is lowered while the rack is linearly moved, And the water and the soup are supplied to the inside of the container by an amount set by the water supply pipe and the soup supply pipe connected to the lid body, and the heater coupled to the lid body generates heat while being supplied with electric power, After boiling the soup and the water for a predetermined time, the lid is lifted up by the operation of the lift- The upper part of the container is opened and the transporting motor is operated again so that the container and the basket containing the surface can be transported in the direction of the outlet of the body so that the user can take out the automatically boiled ramen, Providing a vending machine ".

This has the problem that it is not possible to significantly reduce the time it takes to fully ramen under atmospheric pressure, although it is possible to boil the water with a heater attached to the lid that covers the container. In case of ramen, cooked at 100 ℃ for a certain time under atmospheric pressure. However, when the bag is boiled for more than 3 minutes, it begins to ripen from the surface of the noodles and slowly rises to the inside of the noodles, so that when the inside is fully cooked, the surface of the noodles starts to spread out.

According to Korean Patent Laid-Open Publication No. 10-2014-0126515, there is provided a ramie taking-out unit for taking out a container containing a ramie loaded in a ramie loading unit one by one, A ramp transfer unit for transferring the container containing the ramen taken out from the ramie taking-out unit to the cooking position, a soup supply unit for supplying the soup into the container in a state where the container containing the ramen is housed in the cooking position, A water supply unit for supplying a proper amount of water to the container containing the ram noodle, a cooking unit including a cooker for cooking the ram noodle into which the water and the soup are introduced, a take-out unit for taking out the user's cooked ram noodle, The apparatus state of the vending machine and the user selection contents by the input unit are displayed in the table A display unit that; and if the if constituted by a control unit which controls the operation or status of the unit, including all the mounting unit provides a vending machine "and has an open bar. This is not a cup noodle, but it offers automatic noodle boiling directly, and the customer has the advantage of choosing a recipe, but it still does not solve the problem that it takes a long time to cook and must be provided within a short time after the order required by the vending machine.

On the other hand, in Korean Patent Laid-open Patent Publication No. 10-2007-0097935 (Oct. 5, 2007), "Special Pressure Pot for Ramen" and Korean Patent No. 10-1325785 (Oct. 30, 2013) "Vacuumable Airtight Pot with Pressure- A structure capable of being cooked using a pressure vessel has been disclosed. However, since the pressure is basically supplied only by the steam pressure generated during cooking, the time required for boiling the ramen is not greatly reduced. This is because, when the pressure vessel is initially heated, the steam pressure is not formed, so it is cooked in a general cooking mode and it is possible to cook at a high pressure within a certain time. Therefore, the cooking time is difficult to shorten and the texture of cooked noodles is limited.

When the ram noodle is cooked using such a pressure vessel in which the high pressure is applied, the leakage of the pressure becomes a serious problem. Therefore, there is a need to develop a structure for sealing the pressure vessel and for releasing the pressure upon completion of cooking in order to prevent pressure leakage.

Korean Patent Laid-Open Publication No. 10-1999-025752 (April 6, 1999) Korea Registered Utility Model 20-0187332 (Apr. 17, 2000) "Ramen Feeding Device for Vending Machine" Korea Registered Utility Model 20-0307102 (Feb.28, 2003) "Ramen Vending Machine" Korean Patent Laid-Open No. 10-2014-0126515 (Oct. 31, 201) "Ramen Vending Machine and Control Method Thereof" Korean Patent Laid-open Publication No. 10-2007-0097935 (Oct. 5, 2007) " Korean Patent No. 10-1325785 (Oct. 30, 2013) "Vacuumable airtight pot with lid for easy pressure change"

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a pressure vessel of a ramen vending machine having a structure and mechanism capable of completely sealing a pressure vessel, Thereby providing a sealing device.

According to another aspect of the present invention, there is provided an apparatus for sealing a pressure vessel provided in a ramen vending machine and cooking a ramen at a high pressure, the apparatus comprising: Vessel; An air hole provided above the pressure vessel for supplying hot water and compressed air, and a steam discharge hole for discharging high-pressure steam; And an electric screw jack which is driven by a driving motor to open and close the pressure vessel by raising the pressure lid, wherein the driving motor can be a brake motor that can fix the rotation of the motor shaft when the pressure lid is closed .

The screw jack may include a screw bolt having a lower end coupled to the pressure cap and having a male screw thread formed on the outer circumferential surface thereof, a worm wheel screwed into the screw thread through the screw bolt at the center, a worm engaged with the worm wheel, And a driving motor for rotating the driving motor.

A plurality of the vapor discharge holes are formed, and the high-pressure steam can be gradually discharged while being opened step by step.

Further, a pushing member may be further provided on the lower surface of the pressure lid so as to press the ramp surface.

According to the present invention configured as described above, not only the locking function to prevent the pressure lid that is cooked at high pressure from being opened by the reaction force is performed by using the worm gear, but also the reverse rotation of the motor shaft is prevented by using the driving motor as the brake motor So that complete sealing of the pressure lid during the cooking time can be ensured.

1 is a diagram showing the overall structure of a ramen vending machine.
2 is a schematic view showing a structure of a pressure vessel sealing device of a ramen vending machine according to an embodiment of the present invention;
Fig. 3 is a plan view of the present invention shown in Fig.
Fig. 4 is a perspective view showing the electric screw jack of the present invention shown in Fig. 2
5 is a cross-sectional view of the pressure vessel and pressure lid of the present invention
6 is a plan view showing the structure of the pressure lid of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For a better understanding of the present invention, the description with reference to the drawings is not intended to limit the scope of the present invention. In the following description, a detailed description of related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

First, a pressure vessel sealing device of a ramen vending machine according to the present invention is installed inside a ramen vending machine and is capable of cooking a ramen surface in a pressure vessel in a short time. To understand this, the structure of a ramen vending machine is briefly described with reference to Fig. I will explain.

1 is a configuration diagram showing the overall structure of a ramen vending machine.

A ramp feeder 100 is provided at an upper portion of the ramp feeder 100 to push the ramp at the uppermost end to one side to supply the ramp feeder 100, A high pressure hot water supply device 300 installed on the ramp transfer device 200 for supplying hot water and high pressure air to the pressure vessel sealing device 400, The pressure vessel sealing device 400, the pressure vessel sealing device 400, and the pressure vessel sealing device 400 according to the present invention, which are installed on one side of the ramp supply device 100 and can transfer the ramp surface from the ramp transfer device, A ramen container dispenser 500 for supplying the container C to the lower side of the ramp container C and a ramen dispenser 600 for delivering and delivering the ram noodle cooked in the pressure container closure device 400 to the container C So Lure off, if the purchaser entered an order from outside the automatic rapid cooking Ramen in the works to be provided to the purchaser.

2 to 6 together with the understanding of the overall structure of the ram noodle machine described above, the pressure vessel sealing device of the ram noodle machine according to one embodiment of the present invention will be described. 2 is a plan view of the present invention shown in Fig. 2, Fig. 4 is a cross-sectional view of the electric motor according to the present invention shown in Fig. 2 Fig. 5 is a cross-sectional view of a pressure vessel and a pressure lid of the present invention, and Fig. 6 is a plan view showing a structure of a pressure lid of the present invention.

Referring to the drawings, the pressure vessel sealing apparatus according to the present invention may include a pressure vessel 410, a pressure lid 420, and an electric screw jack 430.

First, the pressure vessel 410 is configured to be cooked when heated by the heater 411 in a state where the ramp, hot water, and compressed air are supplied and accommodated.

The heater 411 may be embedded or embedded in the pressure vessel 410.

Therefore, it may be embedded in the side wall or bottom of the pressure vessel 410, but is preferably buried in the floor. The heater 411 may be an electric heating wire or a heating plate.

The pressure vessel 410 may be made of a light metal material that is resistant to high pressure and has high thermal conductivity, and aluminum can be used. It can also be coated with ceramics on the inner surface.

As shown in the figure, the pressure vessel 410 has a first inclined portion 412 formed on the inner circumferential surface of the inlet and a second inclined portion 413 formed on the lower side thereof. The first inclined portion 412, A step portion 414 is formed between the second inclined portions 413, so that the longitudinal section can be formed as a trapezoid.

Here, the first inclined portion 412 is in contact with the rim of the pressure lid 420 and may be inclined downward. The inclination angle of the first inclined portion 412 may be in a range of 45 ° to 85 °.

That is, when the angle is smaller than 45 degrees, the inclination of the first inclined portion 412 becomes too gentle, and even if the pressure lid is closed, a high pressure is applied to the inside of the container. If the angle is larger than 85 degrees, the inclination of the first inclined portion 412 becomes too sharp and almost vertical, so that the sealing effect is excellent but the pressure lid 420 is difficult to open.

The second inclined portion 413 extends downward from the first inclined portion 412 and is inclined. The inclination angle of the second inclined portion 413 may be in a range of 60 ° to 80 °.

That is, the amount of hot water to be cooked in one ramen is about 500 cc, and ramen is fully immersed in hot water and must be cooked to be cooked evenly.

When the inclination angle of the second inclined portion 413 is smaller than 60 °, the surface of the pressure vessel 410 is not fully immersed if the water level of a predetermined amount is lowered. When the inclination angle of the second inclined portion 413 is greater than 80 °, It is possible to take a ram noodle to be put in.

For reference, in the present invention, the optimal inclination angle of the first inclined portion 412 is 78 ° and the optimal inclination angle of the second inclined portion 413 is 72 ° as a result of various experiments and trial and error.

A step portion 414 is formed between the first inclined portion 412 and the second inclined portion 413 so that the pressure lid 420 is seated while being seated.

On the other hand, a cooking space 415 having a constant inner diameter can be formed on the lower side of the second inclined portion 413. The cross-sectional area of the cooking space 415 has a minimum area so that one ramen can be accommodated.

In addition, a predetermined amount of hot water to be cooked in the cooking space 415, that is, a portion of the ramp that is raised from the bottom of the pressure vessel 410 to the lower end of the second inclined portion 413 occupies the cooking space 415 It can be equal to the water level.

Next, the pressure lid 420 will be described.

The pressure lid 420 can be opened and closed while being lifted and lowered from the pressure vessel 410 to seal the pressure vessel 410 while being cooked at a high pressure.

An air hole 421 for supplying hot water and compressed air at the same time is formed on the upper surface of the pressure lid 420. The air hole 421 is connected to the high-pressure hot water supply device 300 installed in the ramp vending machine and is provided with a check valve (not shown) so that hot water and compressed air can be freely injected. The steam can be blocked from leaking.

A steam discharge hole 422 is formed on the upper surface of the pressure lid 420 to discharge high-pressure steam. The steam discharge hole 422 is a passage for discharging the high-pressure steam inside the pressure vessel to the outside when cooking is completed, if it is at a high pressure.

Therefore, the steam discharging hole 422 may be closed when cooking is performed if a separate on-off valve (not shown) is provided, and may be controlled to be opened for discharging steam upon completion of cooking.

At this time, one or more steam discharge holes 422 may be provided.

Namely, the vending machine of ramen can not be consumed much time to discharge the steam because it needs to cook the ramen within a short time. However, if the inner diameter of the steam discharge hole 422 is excessively increased to quickly discharge the steam in a short period of time, a large noise may be generated when the opening / closing valve is opened, and the cooked ramen inside the pressure vessel 410 may be scattered .

Accordingly, in the present invention, a plurality of the vapor discharge holes 422 may be opened to open the steam discharge holes 422 step by step.

For this purpose, three to four discharge holes, such as a first steam discharge hole 422a, a second steam discharge hole 422b, a third steam discharge hole 422, and a fourth steam discharge hole 422, , This problem is solved.

Further, an auxiliary vapor discharge hole 422 having a diameter larger than that of the steam discharge hole 422 may be additionally formed. That is, when the pressure inside the pressure vessel 410 is gradually decreased through the relatively small-diameter steam discharge hole 422 and the auxiliary vapor discharge hole 422 having a relatively large diameter is opened, the steam is rapidly discharged It is possible to obtain an effect of discharging.

The pressure lid 420 may further include a gauge mounting hole 424 through which a gauge for measuring a pressure inside the pressure vessel 410 can be installed.

The lower edge of the pressure lid 420 may have a shape corresponding to the inlet side of the pressure vessel 410.

That is, a sealing slope 425 is formed on the lower edge of the pressure lid 420 so as to be in close contact with the first slope 412, and the sealing slope 425 is provided with an O- The same sealing member 428 may be further provided.

At this time, the closed inclined portion 425 is also formed to correspond to the inclination angle of the first inclined portion 412.

The pressure lid 420 is made of a material which can withstand high pressure like the pressure vessel 410.

Preferably, a pushing member 426 is provided on the lower surface of the pressure lid 420 to press the ramp in the pressure vessel 410.

The pushing member 426 functions to press the ramen floating in the hot water so as to be immersed in the hot water.

The pushing member 426 may have a width and a cross-section so as to press the ramp surface, and may have a flat plate shape, but have a constant thickness. This is to ensure that the noodle is loosened while being cooked so that it does not come into contact with the pushing member 426.

Therefore, the pushing member 426 is not completely immersed in water when the ramn surface is pressed, but is partially locked.

The support member 427 can be used to fix the pushing member 426 to the pressure lid 420. [

Next, a description will be made of the electric screw jack 430 which drives the pressure lid 420 to move up and down and to seal the pressure vessel at a high pressure.

The electric screw jack 430 has a structure in which the pressure lid 420 is vertically moved up and down in a screw system so that the pressure vessel 410 can be closed or opened. More specifically, the screw 420 includes a screw bolt 431, 432, a worm 433, and a driving motor 434.

The screw bolt 431 has a long shaft shape and is formed with a male screw thread on its outer circumferential surface. The lower end of the screw bolt 431 is engaged with the upper portion of the pressure lid 420. The screw bolt 431 can be coupled to the screw bolt 431 by a bearing so that the screw bolt 431 can rotate freely irrespective of the pressure lid 420.

The worm wheel 432 has gear teeth formed on the outer circumferential surface thereof, a hole 432a formed at the center thereof, and is horizontally rotatable.

The screw bolt 431 is vertically inserted into the hole 432a of the worm wheel 432. The screw hole 432a is formed with an internal thread on the inner peripheral surface of the hole 432a of the worm hole 432a, .

Therefore, when the worm wheel 432 rotates, the screw bolt 431 moves vertically so as to be raised or lowered vertically.

A worm 433 is interlocked with one side of the worm wheel 432. That is, the worm wheel 432 and the worm 433 transmit power so that the power input shaft and the output shaft cross at right angles. Generally, worm gears have a large reduction ratio of 1:10 ~ 1:20.

At this time, the worm wheel 432 and the worm 433 may be mounted in a separate gear box 434 and driven.

However, even if the pressure vessel 410 is sealed with the pressure lid 420 by driving the electric screw jack 430, if a high pressure is applied to the pressure vessel 410, The load on it is too large and it can come to a head. This may cause the pressure lid 420 to be partly opened, the pressure may leak, or the driving force of the electric screw jack 430 may be increased, excessive power may be consumed or the driving motor may be damaged.

That is, even if the pressure lid 420 is completely closed by the rotation of the screw bolt 431, if the high pressure is applied to the pressure vessel 410, the pressure lid 420 receives a large reaction force in the direction of opening due to the pressure .

Accordingly, when the screw bolt 431 is pushed and receives a force in the direction of ascending, the worm wheel 432 rotates in the reverse direction, so that the pressure lid 420 is partly opened and there is a risk of leakage of pressure.

However, in the present invention, the use of the worm gear is in the reverse direction, that is, it is difficult to transmit the power from the worm wheel to the worm because the worm gear has the characteristic that the worm gear only transmits the power from the worm to the worm wheel. Therefore, even if the screw bolt 431 tries to move upward, it is difficult for the worm wheel 432 to rotate due to the worm 433, so that the screw bolt 431 can be locked to the upward movement of the screw bolt 431. As a result, the pressure lid 420 can be sealed by using a worm gear.

Even if the worm gear is used, there is a fear of pressure leakage due to reverse rotation if the reduction ratio is too small. Therefore, it is preferable that the reduction ratio is formed larger than 1: 5.

Meanwhile, the worm 433 is rotationally driven by a separate driving motor 434.

The worm 433 and the driving motor 434 are each provided with a pulley 435 and the pulleys 435 can be interlocked by a belt 436. [ Other power transmission means are of course possible.

Here, the driving motor 434 can be electronically controlled such that the driving stop is stopped when the pressure lid 420 is completely closed.

In particular, the driving motor 434 may be a brake motor having a built-in brake function.

It is necessary to stop the reverse rotation of the driving motor 434 in order to shut off the reaction force of the pressure lid 420 which is hermetically closed at high pressure and maintain the closed state even if the worm gear structure is used as described above.

Accordingly, by using the brake motor, the driving motor 434 can be stopped while cooking at a high pressure, and the motor shaft can be completely fixed to prevent reverse rotation.

Here, since the brake motor is a known technique, a detailed description thereof will be omitted.

Hereinafter, the operation of the present invention will be briefly described.

The ram noodle transferred by the ram noodle transfer device 200 is discharged into the pressure vessel 410 and the soup can be discharged by a separate sour supply device (not shown). Alternatively, the soup may be supplied with the hot water in a premixed state in the hot water.

Then, the electric screw jack 430 is driven so that the screw bolt 431 is lowered and the pressure lid 420 is closed.

Specifically, when the driving motor 434 rotates, the worm 433 rotates and rotates the worm wheel 432 interlocked at a constant reduction ratio.

When the worm wheel 432 rotates, the screw bolt 431 screwed down rotates and descends while the pressure lid 420 coupled to the lower end of the screw bolt 431 descends, .

When the pressure lid 420 is completely closed, a load is applied to the driving motor 434, and the driving of the driving motor 434 is stopped by sensing the load. At the same time, the brake is applied to the drive motor 434 to lock the rotation of the motor shaft.

Hot water and compressed air are supplied from the high-pressure hot water supply device 300 to the inside of the pressure vessel 410 through the air hole 421. The hot water is supplied in a predetermined amount so that one of the hot water can be cooked, and the compressed air is supplied by compressed air, so that the compressed air can be supplied at about 2 to 3 atmospheres.

At this time, even if a high pressure is applied to the pressure vessel 410, the motor shaft can not rotate in the reverse direction and is fixed, so that the pressure lid 420 can be kept completely closed during cooking without opening or gaps.

When the supply of hot water and compressed air is completed, the heater 411 of the pressure vessel 410 is heated to cook the ramen under a high pressure.

As described above, since the pressure inside the pressure vessel 410 is kept at a high level, water is boiled at a high temperature of 100 ° C or more. Therefore, more heat is applied at 100 ° C under atmospheric pressure, It can be cooked in the minute.

When cooking of the ramen is completed, the steam discharge hole 422 is opened, and the steam is gradually discharged by opening the valves in order from the first to the fourth.

When the steam is discharged, the brake of the driving motor 434 is released and the screw bolt 431 is rotated in the opposite direction to be driven to rotate reversely, so that the pressure lid 420 is opened.

Finally, the operation of the ramen delivery device 600 causes the pressure vessel 410 to be dispensed to the ramen container C which is cooked while being tilted and the soup is waiting on the lower side.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims.

400: Pressure vessel sealing device
410: pressure vessel 411: heater
412: first inclined portion 413: second inclined portion
414: stage jaw 415: cooking space
420: pressure lid 421: air hole
422: Vapor discharge hole 422a: First vapor discharge hole
422b: second vapor discharge hole 422c: third vapor discharge hole
422d: fourth steam discharge hole 423: auxiliary steam discharge hole
424: Gauge mounting hole 425: Seal slope part
426: pushing member 427: supporting member
430: Electric screw jack 431: Screw bolt
432: Worm wheel 433: Worm
434: drive motor 434: gear box
435: pulley 436: belt
100: Ramen feeding device 200: Ramen feeding device
300: high-pressure hot water supply device 500:
600: If the distribution device
R: Ramen C: Ramen container

Claims (4)

There is provided an apparatus for sealing a pressure vessel provided in a vending machine and cooking a ramen at a high pressure,
A pressure vessel for cooking a ramen with a heater embedded in the floor;
An air hole provided above the pressure vessel for supplying hot water and compressed air, and a steam discharge hole for discharging high-pressure steam; And
And an electric screw jack which is driven by a driving motor to raise and lower the pressure lid to open and close the pressure vessel,
Wherein the drive motor is a brake motor capable of fixing the rotation of the motor shaft when the pressure cap is closed. The method according to claim 1,
Wherein the electric screw jack comprises:
A screw bolt having a lower end coupled to the pressure cap and having a male screw thread formed on an outer circumferential surface thereof, a worm wheel screwed into the screw thread through the screw bolt at the center, a worm engaged with the worm wheel, and a drive motor rotating the worm And the pressure vessel is closed. The method according to claim 1,
Wherein a plurality of the steam discharge holes are formed, and the high-pressure steam is gradually discharged while gradually opening the steam discharge holes one by one. The method according to claim 1,
And a pushing member capable of pressing the ramp surface is further provided on the lower surface of the pressure lid.

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