WO2020085589A1

WO2020085589A1 - Cooking vessel and method for manufacturing same

Info

Publication number: WO2020085589A1
Application number: PCT/KR2019/003299
Authority: WO
Inventors: 안병석
Original assignee: 안병석
Priority date: 2018-10-22
Filing date: 2019-03-21
Publication date: 2020-04-30

Abstract

The present invention relates to a cooking vessel and a method for manufacturing same. The cooking vessel, which has a bottom part (1) and side walls (2) integrally formed, is characterized and configured with a plurality of protrusion portions (21) integrally formed on the side walls (2), the protrusion portions (21) having a recessed outer surface and a protruding inner surface so that the area of contact with the flames of a gas stove and the area of contact with the ingredients accommodated in the cooking vessel are increased, thus increasing the heat transfer effect to the ingredients. Therefore, the effects are realized in that: the area of contact with the ingredients is increased, and heat transfer efficiency is improved, enabling heating energy to be saved; the protrusion portions are inclined such that foreign matter that floats when the ingredients are boiled and made to flow in the vessel is guided to flow inward from the outside, thus making the removal of the floating matter convenient; when the ingredients are boiled, the protrusion parts protruding in an inclined manner on the inner surface prevent the vessel from boiling over; and the protrusion parts prevent noodle ingredients from sticking to the inner surface of the vessel.

Description

Cooking vessel and its manufacturing method

The present invention relates to a cooking vessel, in particular, to improve the heat transfer efficiency to the food in the container and to guide the floating foreign matter to be gathered in the center, thereby improving the removal of the floating matter by forming a plurality of inclined protrusions on the inner surface. It relates to a cooking vessel having a structure.

The present invention also relates to a method for manufacturing a cooking container for easily manufacturing a cooking container in which a plurality of inclined protrusions are formed on an inner surface.

In general, a cooking container for cooking food by flame heating, such as a rice cooker, a pot, a frying pan, etc., in which a fertile groove is accommodated is used as a necessity in the home.

The cooking vessel is formed of a base material such as aluminum, aluminum alloy or stainless steel, iron, and the like to form a container body.

In order to improve the heat transfer efficiency of the cooking vessel, Korean Patent Registration No. 10-0913118 (registration date August 13, 2009) forms and preheats a container body including a side surface and a bottom surface, b) of the bottom surface Forming a first metal layer by melting an alloy having a melting point of 300 to 600 ° C on the outer surface, c) heating the first metal layer, d) forming a magnetic layer by spraying a metal having magnetism on the first metal layer And e) cooking a container and a method of manufacturing the same, comprising spraying the same metal as the container body onto the magnetic layer to form a second metal layer.

However, in the above-described cooking vessel of the prior art, as the flame rises on the side from the bottom of the container, heat is transferred through the side of the cooking container and heats the food inside, thereby heating the side of the container to be a simple curved surface. There is a problem in that the flame rises on the side wall of the container and thus the heat transfer efficiency through the side wall is low, and the inner surface of the side wall of the container becomes a simple curved surface, and foods are stretched, and boiling water is easily overflowed through the top of the container.

The object of the present invention is to increase the heat transfer area by forming a plurality of protrusions on the inner surface of the cooking vessel to solve the above-described problems of the prior art, and by forming the protrusions inclined, when the food boils and flows, the float is brought to the center. It is to provide a cooking container of an improved structure to guide the gathering to facilitate removal of the floating material.

Another object of the present invention is to first place the steel plate on the lower mold to lower the upper mold to form the basic container so as to easily form the cooking vessel so that a plurality of protrusions are formed on the inner surface, and then the plurality of grooves on the side of the basic container. It is to provide a method for manufacturing a cooking vessel in which a plurality of protrusions are molded on the side by pressing the basic container to the side with a split mold having protrusions formed on the side while being sandwiched in the inner mold.

In order to achieve the above object, the cooking vessel according to the present invention, in the cooking vessel is formed integrally with the bottom portion and the side wall, the area where the fire of the gas range is in contact with the side wall is increased, the food contained in the cooking vessel It is configured to be characterized in that a plurality of protrusions having an inner surface protruding form are integrally formed while the outer surface is concave so as to increase the contact area with and improve the heat transfer effect to the cooked food.

It is preferable that the protrusions are formed to be inclined from the lower side to the upper side of the sidewall of the cooking vessel so that the convection phenomenon that flows upward while the cooking material boils and flows downward again is more smoothly generated.

In addition, in the cooking vessel manufacturing method according to the present invention, a steel plate is disposed as a cooking vessel material on the top of a lower mold in which a recess is formed concave by the depth of the cooking vessel, and an upper portion is formed with a protrusion having a shape corresponding to the groove in the lower mold. The step (S1) of manufacturing a basic container having a bottom and sidewalls by lowering a mold to form a steel plate as a basic shape of a cooking container,

It comprises a step (S2) of forming a plurality of protrusions protruding inward to the side wall (the inside of the basic container).

The step of forming the protrusion of the step (S2),

A state in which the base container is inserted into the upper mold having an inclined lower portion, which is projected downward in the inner shape of the basic container and spaced apart at regular intervals in the circumferential direction, and supports the bottom surface of the basic container as a support. In, it may be configured to include forming the protrusions to protrude inwardly to the sidewalls of the basic mold by moving a plurality of divided molds which are arranged circularly on the side and projecting inwardly on the inner side in the lateral direction.

Alternatively, the step of forming the protrusion of the step (S2),

With the contour of the inner shape of the basic container and spaced in the circumferential direction on the surface, a plurality of grooves are formed on the surface and the basic container is inserted and placed in the horizontally arranged inner mold,

While supporting the horizontally arranged bottom surface of the base container as a horizontally movable support part, while rotating the inner mold at a predetermined angle by a motor, at least one protrusion is formed on the bottom surface and one divided mold disposed on the upper side It may be configured to include a step of pressing the side walls of the base container against the inner mold by lowering the protrusions to protrude inward on the side walls.

As another modified example, the step of forming the protrusion of the step (S2),

A plurality of grooves spaced apart in the circumferential direction having an outline of the inner shape of the basic container are formed and the basic container is inserted and placed in the horizontally arranged inner mold, and then the horizontally arranged bottom surface of the basic container can be horizontally moved. In the state supported by the support part, while rotating the inner mold at a predetermined angle by the motor, advance the groove forming member horizontally arranged to be able to move forward and backward to press the side wall of the basic container disposed on the inner mold to press the side wall of the basic container. After forming the protrusions to protrude inwardly on the sidewalls, retreating, rotating the inner mold at a predetermined angle, and then advancing the groove forming member again to repeat the process of forming the protrusions protruding inwardly on the sidewalls of the base container. It may be configured to include the formation of the two protrusions on the side wall of the base container.

According to the present invention, by forming a plurality of protrusions on the inner surface of the cooking vessel, the surface area in contact with the food is increased to improve heat transfer efficiency, thereby saving heating energy, and by forming the protrusions inclined, the food boils in the container. It guides the foreign substances floating when flowing to flow from the outside to the inside to facilitate removal of the suspended matter, and when the boil is boiled, the container is not overflowed by the protrusions protruding obliquely to the inner surface, and the surface is cooked by the protrusions. There is an effect that water does not stick to the inner surface of the container.

In addition, in the cooking container manufacturing method according to the present invention, by pressing the basic container disposed on the inner mold with a plurality of divided molds with protrusions formed on the inner surface, a plurality of inclined protrusions projecting on the inner surface of the container and being inclined on the inner surface Since the formed cooking vessel can be easily manufactured, there is an effect of improving productivity.

1 is a perspective view of a cooking vessel according to the present invention in which inclined projections are formed inward.

FIG. 2 is a cross-sectional view of the cooking container of FIG. 1, showing that the liquid cooking material flows while boiling.

FIG. 3 is a plan view of the cooking container of FIG. 1 and shows that the food is cooked evenly without sticking by guiding the food to flow in the inclined direction of the protrusions by the inclined protrusions inside the cooking container. .

4 is a method of manufacturing a cooking vessel according to the present invention, in order to manufacture a basic container, a steel plate is placed on the lower mold and disposed thereon, and the upper mold descends into the groove portion of the lower container to bend the steel plate of the flat plate, thereby bending the basic container Section showing molding.

Figure 5 is a perspective view of a basic container molded by Figure 4;

FIG. 6 is a divided mold in which inclined protrusions are formed on an inner surface in a state in which the basic container of FIG. 5 is disposed on an inner fixed mold according to the first embodiment of the present invention. It shows the process of manufacturing the molded cooking vessel of the present invention.

7 is a state in which the basic container is fixed by placing the basic container on the fixed mold rotatably horizontally arranged according to the second embodiment of the present invention, and pressing the bottom of the basic container against the fixed mold with the floor fixing unit, It shows the process of manufacturing the cooking vessel by forming the inclined protrusions by pressing the outer surface of the basic container with the partial mold disposed on the upper side while rotating stepwise at a predetermined angle.

8 is a fixed mold placed in a state in which the basic container is fixed by placing the basic container on a fixed mold rotatably horizontally arranged according to the third embodiment of the present invention, and pressing the bottom of the basic container against the fixed mold with the floor fixing unit. It shows the process of manufacturing the cooking vessel by molding the inclined protrusion to protrude inward by pressing the outer surface of the basic container by moving the movable roller forward and backward while rotating stepwise at a predetermined angle.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

1 to 3, the cooking vessel according to the present invention, the bottom portion 1 and the side wall 2 are integrally formed, the side wall 2 has a concave outer surface while the inner surface protrudes a plurality of forms The protrusions 21 are formed integrally.

The protrusions 21 are formed to protrude inwardly on the side wall 2 of the cooking vessel, and preferably are formed to be inclined upward from the lower side of the protrusions 21, thereby corresponding to the protrusion 21 on the outer side surface of the cooking vessel. Thus, the grooves are formed, whereby the area where the fire of the gas range comes into contact is increased, and the contact area with the food contained in the cooking vessel is increased, thereby improving the heat transfer effect to the food so that the food boils quickly.

In addition, the projections 21 are projected obliquely from the inner surface of the cooking vessel, so that the cooked food flows upward along the inclined projections 21 while boiling with heat transfer from the inner surface of the cooking vessel, Since the convection flow flowing down again occurs more smoothly, the improved heat transfer effect and the convection phenomenon of the cooked food boil the cooked food faster than when the sidewall of the conventional cooking container is flat, thus reducing the energy required for cooking. You can save.

In addition, in the cooking container of the present invention, when the food boils, the flow of the food is prevented by the protruding portions 21 formed to protrude on the inner surface while flowing upward on the side walls, so that the food does not overflow.

In addition, when the noodles are boiled in the cooking vessel of the present invention, as described above, not only the food flows up and down, but also the food contacted with the protruding portions 21 on the inner surface of the cooking vessel, the diameter of the protruding portions 21 Since it rotates in the photo direction, the surface is cooked without sticking to the bottom and inner surface of the cooking vessel.

As described above, in the cooking vessel according to the present invention, while the cooked food boils and rotates by the protrusions formed obliquely on the inner surface along with the flow of up and down, the floats generated when the food boils are brought to the center. And thereby facilitates the removal of suspended solids.

The cooking vessel of the present invention described above firstly manufactures a basic container including a bottom portion 61 and a side wall 62 of a predetermined depth by a conventional method (step S1), and a protruding portion protruding inward to the side wall of the basic container They are produced by molding (step S2).

As shown in Figures 4 and 5, in step (S1), as a cooking vessel material, for example, a steel plate (4) on the top of the lower mold (3) is formed with grooves (31) concave by the depth of the cooking vessel, for example Placed, and lowering the upper mold 5 formed with a protrusion 51 having a shape corresponding to the groove 31 of the lower mold 3, the steel plate 4 as a basic shape of the cooking vessel as shown in FIG. Similarly, a base container 6 having a bottom portion 61 and a side wall 62 is manufactured.

Then, in step S2, a plurality of protrusions 63 are formed to protrude from the inner surface to the inner side wall 62 of the basic container 6.

In the first embodiment shown in FIG. 6, the forming step of the protruding part of the step S2 is the basic container 6 in the upper mold 8 having the lower part 7 protruding downward to the inner shape of the basic container 6. ) Is inserted, and the bottom surface of the basic container 6 is supported by the support part 9, and a plurality of circularly arranged sideways of the basic container, at least three divided molds 10 in the illustrated embodiment By moving in the direction, the side walls 62 of the basic mold 6 are pressed to form the protrusions 63 to protrude inward to the side walls 62.

To this end, the grooves 71 are formed on the side surface of the lower part 7 of the upper mold 8 to be inclined up and down to be spaced apart at regular intervals, and at the corresponding positions, of the divided molds 10 arranged on the side. On the inner surface, protrusions 11 projecting inward are formed.

In the state where the basic container 6 is disposed on the lower portion 7 of the upper mold 8, the plurality of divided molds 10 arranged on the side are shown by the hydraulic device shown in Fig. 6 only by the shaft portion 9 briefly. The basic container (6) disposed therebetween as the projections (11) of the divided mold (10) are inserted into the grooves (71) formed on the sides of the upper mold (8) and lower (7) by horizontally moving toward the upper mold (8). ) Protruding portion (63) protruding inward is formed on the side wall (62) to manufacture a cooking vessel according to the present invention. In addition, it is preferable that the divided molds 10 are supported so that the lower end is partially arranged on the bottom side of the basic container 6.

7 shows a second embodiment of step S2 according to the present invention, and in the second embodiment, has a contour of the inner shape of the basic container 6 and is spaced apart in the circumferential direction on the surface to form a plurality of grooves 71 ') The base container 6 is inserted and placed in the inner mold 8' where the surfaces are formed and placed horizontally, and the horizontally arranged bottom surface of the base container 6 is supported by a horizontally movable support portion 9 '. In one state, the inner mold 8 'is briefly shown in FIG. 8, but is rotated at a predetermined angle by, for example, a step motor, and is disposed on the upper side and at least one protrusion 11' is formed on the bottom surface. By lowering the divided mold 10 'of the pressing side wall 62 of the basic container 6 disposed on the inner mold 8', the protrusions 63 are formed to protrude inward on the side wall of the basic container 6 By doing so, according to the present invention, a plurality of protrusions protruding inward on the side walls are formed. To produce a cooking vessel. Although the support portion 9 'and the divided mold 10' are briefly illustrated in FIG. 8, they are configured to move by a hydraulic device, and since such a moving means can be constructed using a conventional technique, detailed description thereof will be omitted. do.

8 shows a third embodiment of step S2 according to the present invention, and in the third embodiment, the inner mold 8 'horizontally arranged has an outline of the inner shape of the base container 6 and is surfaced. A plurality of grooves 71 'spaced apart in the circumferential direction are formed, and the base container 6 is inserted and placed in the inner mold 8', and then the horizontally arranged bottom surface of the base container 6 is disposed. In the state supported by the horizontally movable support portion 9 ', the inner mold 8' is briefly shown in FIG. 9, but is rotated horizontally, for example, while rotating at a predetermined angle by a step motor. The formed groove forming member 10 "advances and presses the side walls 62 of the basic container 6 disposed on the inner mold 8 'to protrude inwardly to the side walls of the basic container 6 so that the protrusions 63 After molding and retreating, the inner mold 8 'is rotated at a predetermined angle, and the groove forming member 10 "is again turned on. By advancing and repeating the process of forming the protrusions 63 projecting inwardly on the side walls 62 of the basic container 6, a plurality of protrusions 63 are formed on the side walls of the basic container 6, the cooking vessel according to the present invention To manufacture. Although the support portion 9 'and the groove forming member 10 "are briefly illustrated in FIG. 9, they are configured to move back and forth by a hydraulic device, and these moving means can be configured using conventional techniques. The detailed description is omitted. The groove forming member 10 "is rotatably mounted at the tip of the pressing member 14" provided with the pressing roller 12 "so as to be able to move forward and backward, and is mounted on a hydraulic cylinder not shown in the drawing. It can be made possible by moving forward and backward.

As described above, according to the present invention, it is possible to easily manufacture a cooking vessel in which a plurality of inclined and protruding protrusions are formed on the side wall, thereby reducing mold manufacturing cost and improving productivity by automating the process, thereby producing the cooking vessel. You can save money.

The cooking vessel of the present invention was formed to form protrusions on the side wall to improve the heat transfer efficiency through the side wall, but employs a structure laminated with a material having good heat transfer characteristics, which is usually applied to improve the heat transfer efficiency on the bottom of the cooking vessel. It's easy to understand that you can.

The present invention can be applied to a cooking vessel with improved thermal efficiency by applying to a cooking vessel heated and cooked.

Claims

In the cooking vessel is formed integrally with the bottom portion (1) and the side wall (2),

On the side wall 2, the area where the fire of the gas range is increased is increased, and the contact surface with the food contained in the cooking vessel is increased, so that the outer surface is concave so that the heat transfer effect to the food is improved, and the inner surface protrudes. A cooking vessel characterized in that the plurality of protrusions 21 of the formed form are integrally formed.
According to claim 1,

The protrusions 21 are cooking vessels, characterized in that they are formed to be inclined from the lower side to the upper side in the side wall 2 of the cooking vessel so that convection flows downward while flowing upward while the food boils.
A steel plate 4 is disposed as a cooking container material on the upper end of the lower mold 3 in which the recesses 31 are formed to be concave by the depth of the cooking container, and protrusions having a shape corresponding to the recesses 31 of the lower mold 3 The step (S1) of lowering the upper mold (5) on which the 51 is formed and manufacturing the base plate (6) with the bottom portion (61) and side walls (62) as the basic shape of the cooking vessel (4),

Method of manufacturing a cooking vessel comprising the step (S2) of forming a plurality of protrusions (63) protruding inward to the side wall (62) of the basic container (6).
According to claim 3,

The step of forming the protrusion of the step (S2),

The basic container (6) in the upper mold (8) with a lower (7) formed inclined upward and downward to protrude downward in the inner shape of the basic container (6) and to form grooves (71) spaced apart at regular intervals in the circumferential direction Inserting, and in the state of supporting the bottom surface of the basic container (6) with a support portion (9), a plurality of divided molds (10) are formed circularly on the side and protruding portions (11) protruding inward on the inner surface A method of manufacturing a cooking vessel, characterized in that, by moving in the lateral direction, the side walls (62) of the basic mold (6) are pressed to protrude inwardly to the side walls (62).
According to claim 3,

The step of forming the protrusion of the step (S2),

The base container 6 is inserted into the inner mold 8 'having a contour of the inner shape of the base container 6 and spaced apart in the circumferential direction on the surface, where a plurality of grooves 71' are formed on the surface and placed horizontally. and,

While the horizontally arranged bottom surface of the basic container 6 is supported by a horizontally movable support portion 9 ', the inner mold 8' is rotated at a predetermined angle by a motor, and at least one protrusion 11 ') Is formed on the bottom surface and the one divided mold 10' disposed on the upper side is lowered to press the side wall 62 of the base container 6 against the inner mold 8 'and press the inner side to the side wall 62. Method for manufacturing a cooking vessel characterized in that the protrusions 63 are formed to protrude.
According to claim 3,

The step of forming the protrusion of the step (S2),

A plurality of concave grooves 71 'spaced in the circumferential direction on the surface having an outline of the inner shape of the base container 6 is formed and the base container 6 is inserted and placed in the inner mold 8' horizontally arranged. Next, in a state in which the horizontally arranged bottom surface of the basic container 6 is supported by a horizontally movable support portion 9 ', the inner mold 8' is rotated at a predetermined angle by a motor, and can be moved forward and backward. The projecting portion (10) of the horizontally arranged groove forming member (10 ") is pressed to press the side wall (62) of the basic container (6) disposed on the inner mold (8 ') to protrude inwardly on the side wall of the basic container (6) ( 63) are molded and then retracted, the inner mold 8 'is rotated at a predetermined angle, and then the groove forming member 10 "is further advanced to protrude inward to the side wall 62 of the base container 6 Repeating the process of forming the protrusions 63, characterized in that a plurality of protrusions 63 are formed on the side wall of the base container 6 The method for manufacturing a cooking vessel.