JP4100683B2 - Continuous rice cooker - Google Patents

Description

  The present invention relates to a continuous rice cooker capable of appropriate continuous rice cooking.

Conventionally, for example, three types of induction heating coils, that is, a bottom side heating coil that heats the bottom and side portions of the rice cooker, a side heating coil that heats the side portions of the rice cooker, and a bottom surface that heats the bottom portion of the rice cooker There is known a high-frequency induction heating type continuous rice cooker having a structure including a heating coil and appropriately arranging these three types of induction heating coils on the outer periphery of a U-groove protective frame (see, for example, Patent Document 1). ).
JP 2003-111670 A

  However, in the configuration in which the rice cooking pot is heated with the induction heating coil as in the conventional high-frequency induction heating type continuous rice cooker, the pot portion near the induction heating coil is easily heated, but the pot portion far from the induction heating coil is heated. Because it is difficult, especially because the whole rice cooker, which is important in the later stages of rice cooking, is not surrounded and steamed at all, a problem occurs in the heating of the rice cooker, and appropriate continuous rice cooking work cannot be performed There is a fear.

  This invention is made | formed in view of such a point, and it aims at providing the continuous rice cooker which can perform an appropriate continuous rice cooking operation | work.

The continuous rice cooker according to claim 1 heats the rice cooker having a substantially rectangular parallelepiped shape while moving it intermittently in the transport direction, and a plurality of the rice cookers are disposed along the transport direction of the rice cooker, A substantially rectangular plate-shaped bottom side induction heating coil and a substantially rectangular plate-shaped side surface that are arranged along the conveying direction of the rice cooker and that face each other at a predetermined interval. It is a continuous rice cooker which arrange | positions an induction heating coil in substantially U shape, Comprising : The rice cooking heating part which is a 1st heating part of the high frequency induction heating type which heats a rice cooker, and the conveyance direction downstream of this rice cooking heating part And a steaming heating unit that is a resistance heating type second heating unit that heats the rice cooker, and the rice cooking heating unit has a length dimension in the conveyance direction that is substantially the same as a length dimension in the conveyance direction of the rice cooker. There are multiple side by side in the left-right direction orthogonal to the conveyance direction, and almost the entire bottom surface of the rice cooker The bottom surface induction heating coil that heats the bottom portion of the rice cooker and the length dimension in the transport direction are substantially the same as the length dimension in the transport direction of the rice cooker, and are arranged facing each other, It has a side induction heating coil that makes a pair that heats the side parts on both sides in the conveyance direction of the rice cooker, facing the part up to the height of the side parts on the both sides in the conveyance direction of the kettle. Separate inverters are connected to the left and right side induction heating coils and the bottom induction heating coils between the left and right side induction heating coils, and the heating power and side induction of these bottom induction heating coils are connected. The heating power of the heating coil can be adjusted individually. In the cooking direction of the rice cooker, the heating power of the induction heating coils for the bottom surface along the conveying direction of the rice cooker can be adjusted by changing the inverter output. The heating power of the induction heating coils for the side surfaces along the conveying direction of the rice cooker can be individually adjusted by changing the inverter output, and the steaming heating unit is a rectangular shape that is elongated in the conveying direction. The heater unit is supported by a plate-like heater support part and has a sheathed heater part, and the hot air by the heater unit is generated by the induction plate part protruding upward from both side ends along the longitudinal direction of the heater support part. It rises while being induced, and heats the bottom part of the rice cooker and the four side parts on the left and right sides .

According to the present invention, after heating by cooking the heating portion of the high-frequency induction heating, substantially the entire cooking pot by steaming heating portion of the resistive heating type since it heated so as to cover at hot air, it is appropriate continuous cooking operations.

  An embodiment of a continuous rice cooker of the present invention will be described with reference to the drawings.

  1 to 4, reference numeral 1 denotes a continuous rice cooker (continuous IH rice cooker with a heater). This continuous rice cooker 1 intermittently moves the rice cooker 2 in the substantially horizontal conveyance direction X by the conveyance unit 3. It is heated by the heating unit 4 while performing the continuous rice cooking operation.

  The rice cooker 2 has a substantially rectangular parallelepiped shape having a substantially rectangular top surface opening and has a bottom surface portion 6 having a substantially rectangular plate shape. A steeply sloped side surface portion 7 protrudes obliquely upward and outward from an outer peripheral end portion of the bottom surface portion 6, and an upper peripheral end portion of the side surface portion 7 serves as an upper surface opening edge portion 8. A handle portion 9 projects outward from both sides of the upper opening edge 8 in the conveying direction X. And the upper surface opening of the rice cooking pot 2 is closed so that opening and closing is possible with a lid (not shown) at the time of rice cooking.

  The continuous rice cooker 1 includes a machine frame 11 that is long and hollow in the conveying direction X. The machine frame 11 is formed with a heating chamber (kettle conveying path) 12, a kettle inlet 13 and a kettle outlet 14. The upper portion of the heating chamber 12 formed inside the machine casing 11 is covered with an openable / closable canopy 16 with a handle 15. A pot inlet 13 communicating with one end of the heating chamber 12 is always open at one end in the longitudinal direction of the machine frame 11, and a pot outlet 14 communicating with the other end of the heating chamber 12 is disposed at the other longitudinal end of the machine frame 11. Always open.

  In addition, the machine frame 11 is provided with a plurality of sprockets 22 that are rotatable based on power from a drive motor 21 that is a drive means. The sprocket 22 is wrapped around a chain 23 which is a transport endless body that moves the rice cooker 2 in a substantially horizontal transport direction X in a state where the rice cooker 2 is supported via the handle portions 9 on both sides. The drive motor 21, the sprocket 22, and the chain 23 constitute a chain conveyor type transport unit 3 that transports the rice cooker 2 in the transport direction X.

  On the other hand, the machine casing 11 has a coil support portion 31 which is long in the transport direction X and has a substantially U-shaped longitudinal section on the inside, and this coil support portion 31 is disposed only on the upstream side in the transport direction X. Yes. The coil support portion 31 includes a horizontal bottom plate portion 32 and side plate portions 33 protruding upward from both side end portions along the longitudinal direction of the bottom plate portion 32.

  Further, the machine frame 11 has a rectangular plate-like heater support portion 26 elongated in the transport direction X on the inner side, and the heater support portion 26 is disposed only on the downstream side in the transport direction X. From both side end portions along the longitudinal direction of the heater support portion 26, guide plate portions 27 for inducing hot air protrude upward.

  The coil support 31 on the upstream side in the transport direction X of the machine frame 11 has a high-frequency induction heating type, that is, a so-called IH type first heating unit for heating the rice cooker 2 moving in the heating chamber 12 in the transport direction X. The rice cooking heating part 36 is provided in a state facing the heating chamber 12.

  Further, the heater support 26 on the downstream side in the transport direction X of the machine frame 11 is located downstream in the transport direction X of the rice cooking heating unit 36 and heats the rice cooker 2 moving in the transport direction X in the heating chamber 12. A steaming heating part 37 which is a heater type (resistance heating type) second heating part is provided facing the heating chamber 12.

  An IH rice cooker heating unit 36 that is supported by the coil support 31 and is located upstream in the transport direction X and performs heat treatment up to the vicinity of boiling, and a downstream of the transport direction X that is supported by the heater support 26. The heating unit 4 is composed of a heater-type steaming heating unit 37 that is located in the vicinity of the boiling point and performs heat treatment in the vicinity of boiling.

  Here, a plurality of (for example, four, for example, four in the front-rear direction along the conveyance direction X) and the direction orthogonal to the conveyance direction X are used to heat the IH-type rice cooking heating unit 36 for heating the bottom surface portion 6 of the rice cooker 2. There are a plurality of, for example, two, a total of eight in the left-right direction, and a bottom coil 41 that is a substantially rectangular plate-shaped bottom induction heating coil.

  The bottom surface coils 41 are provided in a plurality of rows in the transport direction X on the upper surface side of the bottom plate portion 32 of the coil support portion 31 of the machine frame 11. And the coil 41 for bottom faces is horizontal in the bottom plate part 32 of the coil support part 31 so that it may oppose the bottom face part 6 of the rice cooker 2 currently moving in the conveyance direction X through the heating chamber 12 through a predetermined interval. It is supported by.

  In addition, the IH type rice cooking heating unit 36 is a pair (for example, four pairs on the left and right sides) that are disposed so as to face each other and heat the side surface portions 7 on both sides in the conveyance direction X of the rice cooker 2 (both left and right sides with respect to the conveyance direction X) , A side coil 42 which is a substantially rectangular plate-like side induction heating coil.

  Four side coils 42 arranged in the front-rear direction on the right side (lower side in FIG. 4), which is one side in the conveyance direction X, are the inner surfaces of the side plates 33 on the right side in the conveyance direction X of the coil support portion 31 of the machine frame 11. Are provided in a row in the transport direction X. The coil 42 on the right side in the conveyance direction X is coil-supported so as to face the side portion 7 on the right side in the conveyance direction X of the rice cooker 2 moving in the conveyance direction X in the heating chamber 12 with a predetermined interval. The side plate portion 33 on the right side in the conveyance direction X of the portion 31 is supported in an inclined manner.

  Similarly, the four side-surface coils 42 arranged in the front-rear direction on the left side (upper side in FIG. 4), which is the other side in the conveyance direction X, are arranged on the side plate portion 33 on the left side in the conveyance direction X of the coil support portion 31 of the machine frame 11. The inner surface is provided in a row with respect to the transport direction X. The coil 42 on the left side in the conveyance direction X is coil-supported so as to face the side part 7 on the left side in the conveyance direction X of the rice cooker 2 moving in the conveyance direction X in the heating chamber 12 with a predetermined interval. The side plate part 33 on the left side in the conveyance direction X of the part 31 is supported in an inclined manner.

  The bottom coil 41 is disposed so as to be positioned between the paired side coils 42 in a plan view. In other words, the bottom surface coils 41 arranged in the left-right direction are arranged so as to be positioned in a plan view between the side surface coils 42 that form a pair of left and right that have substantially the same position in the front-rear direction (position in the transport direction X).

  The outer dimension of the coil 41 for the bottom surface is arranged so that it can be opposed to substantially the entire bottom surface part 6 by arranging two in the width dimension orthogonal to the conveying direction X of the rice cooker 2, and the outer dimension of the coil 42 for the side surface is the rice cooking pot 2 In the height dimension, the side portion 7 can be opposed to the heated material contained in the rice cooker 2. The coils 41 and 42 are arranged in a state in which the long side direction coincides with the transport direction X. Furthermore, the length dimension of the conveyance direction X of the coils 41 and 42 is substantially the same as the length dimension of the single rice cooker 2 in the conveyance direction X.

  Further, the heating power of the bottom coil 41 and the heating power of the side coil 42 can be individually adjusted.

That is, as shown in FIG. 4, the first inverter 40 ₁ that supplies electric power to the two coils 41 is connected to the two bottom-surface coils 41 that are in the most upstream direction in the conveying direction X. the two sides coil 42, the second inverter 40 ₂ is connected to supply power to both coils 42. Further, a third inverter 40 ₃ for supplying electric power to both coils 41 is connected to the second bottom surface coil 41 from the most upstream in the conveying direction X, and the second two coils from the most upstream in the conveying direction X are connected. the side coil 42, the fourth inverter 40 ₄ is connected to supply power to both coils 42. Further, the conveying direction X from the most upstream of the third two bottom coils 41 are connected to the fifth inverter 40 ₅ for supplying power to both coils 41, the conveying direction X from the most upstream third two the side coil 42, the sixth inverter 40 ₆ is connected to supply power to both coils 42. Furthermore, the two bottom coils 41 4 th from the conveying direction X most upstream is the seventh inverter 40 ₇ supplies power to the coil 41 is connected to the conveying direction X from the most upstream fourth two the side coil 42, the eighth inverter 40 ₈ are connected for supplying power to both coils 42.

As described above, in the IH rice cooking heating section 36 on the upstream side in the conveyance direction X, separate inverters 40 ₁ , 40 are provided for the left and right side coils 42 and the bottom coil 41 between the left and right side coils 42. 40 _2, ..., 40 ₈ is connected, the inverter 40 _1, 40 _2, ..., 40 ₈ of the bottom coil by changing the inverter output heating power of the heating power and a side coil so that each can be adjusted individually It has become. That is, the heating power to the bottom surface portion 6 of the rice cooker 2 and the heating power to the side surface portions 7 on the left and right sides of the rice cooking pot 2 can be individually adjusted.

  Moreover, also in the conveyance direction X of the rice cooker 2, at each point (zone) where the rice cooker 2 moves intermittently, the heating power of the coil 41 for the bottom surface and the heating power of the coil 42 for the side surface are individual inverters. Each can be adjusted individually by connecting to. That is, the heating power of the plurality of bottom surface coils 41 along the conveying direction X of the rice cooker 2 can be individually adjusted, and the heating power of the plurality of side surface coils 42 along the conveying direction X of the rice cooking pot 2 is Each can be adjusted individually.

  On the other hand, the heater-type steaming heating unit 37 includes a plurality of (for example, four) heater units 50 that generate hot air in the heating chamber 12 and heat the rice cooker 2 so as to cover almost the entire rice cooker 2 with hot air.

  The plurality of heater units 50 are provided in a state of being aligned in the transport direction X on the upper surface side of the heater support portion 26 of the machine casing 11, and the heater units 50 are disposed adjacent to each other. The heater unit 50 is horizontally supported by the heater support portion 26 so as to face the bottom surface portion 6 of the rice cooker 2 moving in the conveyance direction X in the heating chamber 12 with a predetermined interval. . Each heater unit 50 includes a sheathed heater section that generates heat, a fan that causes hot air to flow upward, and the like.

On the other hand, the inverter 40 ₁ stove heating portion 36 of the IH type, 40 _2, ..., 40 _8, the inverters 40 _1, 40 _2, ..., 40 ₈ each inverter 40 outputs a control signal to the _1, 40 _2, ..., one control unit is a central control unit for controlling the 40 ₈ (control panel) 55 is connected. The control means 55 has a setting unit 56 that sets the inverter output of each of the inverters 40 ₁ , 40 ₂ ,..., 40 ₈ to a value corresponding to the type of rice cooking object (for example, white rice, chicken rice, gomoku rice). is doing. Each heater unit 50 is also connected to the control means 55, and each heater unit 50 is controlled by the control means 55.

Each inverter 40 _1, 40 _2, ..., 40 ₈ is accommodated in the inverter accommodating section 39 of the machine frame 11.

  Further, as shown in FIG. 5 (a), in the IH type rice cooking heating unit 36, the two bottom surface coils 41 having substantially the same position in the transport direction X are connected in series, and in the opposing portions adjacent to each other. The current flows in the same direction so that the heating power does not decrease. Two side coils 42 having substantially the same position in the transport direction X are also connected in series. However, since both side coils 42 are spaced apart from each other, the direction of current flow does not matter. Further, as is apparent from FIG. 5B, the four coils 41 and 42 whose positions in the transport direction X are substantially equal include the bottom surface portion 6 and the side surface portions 7 on both sides of the transport direction X with respect to one rice cooker 2. Are heated at the same time.

  Next, the operation of the continuous rice cooker 1 will be described.

  For example, when cooking white rice, rice cooker 2 filled with rice and water is supplied into heating chamber 12 from kettle inlet 13, and rice cooker 2 is moved intermittently in conveyance direction X by conveyance unit 3. Let

  The rice cooker 2 is heated by the bottom coil 41 and the side coil 42 of the IH type rice cooking heating unit 36 and subjected to rice cooking heating processing (heating processing up to the vicinity of boiling), and then the heater type steaming heating unit 37 It is heated by the heater unit 50 and is subjected to steaming heat treatment (heat treatment after boiling).

At this time, the control unit 55, setting unit 56 each inverter 40 ₁ a control signal corresponding to the set condition heating conditions for clogging white rice at 40 _2, ..., and output to 40 _8, the inverters 40 _1, 40 _2, ..., 40 _8, based on the control signal, and outputs an inverter output of the predetermined value, and supplies power to the corresponding coils 41 and 42. As a result, a high-frequency current (for example, a frequency of 20 kHz) flows intermittently through the bottom surface coil 41 and the side surface coil 42, and the magnetic field lines around the coils 41 and 42 are changed. An eddy current is generated in the side surface portion 7 and the bottom surface portion 6 and the left and right side surface portions 7 are heated.

  The control means 55 controls each heater unit 50 according to the heating conditions for white rice, and generates hot air near the second heating unit in the heating chamber 12. As a result, the hot air from the plurality of heater units 50 arranged in the transport direction X rises while being guided by the guide plate portion 27, and the surroundings of the whole rice cooker 2 are covered by the hot air, so that the entire rice cooker 2 is substantially the whole. That is, one bottom surface portion 6 and four side surface portions 7 on the left and right sides are heated at the same time.

  In addition, the rice cooker 2 after the steaming heat treatment by the heater unit 50 is discharged out of the heating chamber 12 from the pot outlet 14 and is transported to the next process.

  For example, when cooking rice with chicken rice, rice cooker 2 filled with rice, water, chicken, seasonings, and the like is supplied to heating chamber 12 from kettle inlet 13, and rice cooker 2 is conveyed to conveyance unit 3. Is moved intermittently in the transport direction X.

Then, as in the case of the white rice, the rice cooker 2 is cooked by the IH rice cooker heating unit 36 and then steamed by the heater steamer heating unit 37 to the next step. is conveyed, the control unit 55 for outputting a control signal corresponding to the heating condition for the condition, ie chicken rice set by the setting unit 56 each inverter 40 _1, 40 _2, ..., 40 _8, each inverter 40 _1, 40 _2, ..., 40 _8, so that the output of the inverter output of the predetermined value to the coil 41.

  In addition, for example, when cooking gomoku rice, rice cooker 2 filled with rice, water, seasonings, etc. is supplied into heating chamber 12 from kettle inlet 13, and rice cooker 2 is conveyed by conveyance unit 3. Move intermittently in direction X.

Then, as in the case of the white rice, the rice cooker 2 is subjected to a rice cooking heat treatment by heating the IH rice cooking heating section 36, and then steamed and heat treated by the heater steaming heating portion 37 to the next step. is conveyed, the control unit 55 for outputting a control signal corresponding to the heating condition for the condition, i.e. Gomoku rice set by the setting unit 56 each inverter 40 _1, 40 _2, ..., 40 _8, each The inverters 40 ₁ , 40 ₂ ,..., 40 ₈ output inverter outputs having predetermined values to the coils 41 and 42.

  Thus, according to the said continuous rice cooker 1, after heating by the IH type rice cooking heating part 36, the heater-type steaming heating part 37 can be heated so that substantially the whole rice cooking pot 2 may be covered with hot air, Can be cooked continuously. Therefore, the heating which wraps the whole rice cooking pot 2 is implement | achieved, the whole inside the cooking pot can be steamed simultaneously, and rice cooking objects, such as white rice, can be cooked plumply.

  Moreover, unlike the conventional IH type continuous rice cooker, for example, the heating power of the coil 41 for the bottom surface and the heating power of the side coil 42 of the IH type rice cooking heating unit 36 corresponding to the type of the rice cooking object, respectively. In addition to being able to adjust individually, the heating power of the plurality of bottom surface coils 41 aligned in the transport direction X can be individually adjusted, and the heating power of the plurality of side coil 42 aligned in the transport direction X can be individually adjusted More appropriate continuous rice cooking work can be performed, for example, not only white rice, but also chicken rice and gomoku rice can be cooked deliciously without burning.

Incidentally, continuous cooking device 1, the structure in which constantly open the kettle outlet 14 of the machine frame 11 is not limited, for example, by providing a door for opening and closing the hook outlet 14 on the peripheral portion of the kettle outlet 14 of the machine frame 11 Alternatively, the configuration may be such that hot air does not easily escape from the pot outlet 14 .

  Moreover, the continuous rice cooker 1 is good also as a space-saving structure which has arrange | positioned the rice cooking heating part (1st heating part) 36 in the lower stage, and arrange | positioned the steaming heating part (2nd heating part) 37 in the upper stage.

It is a side view which shows one Embodiment of the continuous rice cooker of this invention. It is a longitudinal cross-sectional view of a continuous rice cooker same as the above. It is a longitudinal cross-sectional view of a continuous rice cooker same as the above. It is a coil expanded view of the heating part of a continuous rice cooker same as the above. (A) And (b) is explanatory drawing of the coil of a rice cooking heating part.

Explanation of symbols

1 Continuous Rice Cooker 2 Rice Cooker 6 Bottom Part 7 Side Part
26 Heater support
27 Guide plate
36 Cooking rice heating part which is the first heating part
37 Steaming heating section as the second heating section
41 Bottom coil, which is an induction heating coil for the bottom
42 Side coil, induction heating coil for side
50 Heater unit X Transport direction

Claims (1)

A substantially rectangular plate that is heated while intermittently moving a rice cooker having a substantially rectangular parallelepiped shape in the conveyance direction, and that is arranged in plural along the conveyance direction of the rice cooker and faces the bottom portion of the rice cooker via a predetermined interval. A substantially rectangular plate-shaped induction heating coil for a bottom surface and a substantially rectangular plate-shaped induction heating coil for a side surface that are arranged along a conveying direction of the rice cooking pot and are opposed to each other at a predetermined interval. A continuous rice cooker to be arranged ,
A rice heating unit that is a high-frequency induction heating type first heating unit that heats the rice cooking pot;
It is located downstream in the conveying direction of this rice cooking heating part , and comprises a steaming heating part that is a resistance heating type second heating part for heating the rice cooker ,
Cooking rice heating part
The length dimension in the conveying direction is substantially the same as the length dimension in the conveying direction of the rice cooker, a plurality of juxtaposed in the left-right direction perpendicular to the conveying direction is opposed to substantially the entire bottom of the rice cooking pot, An induction heating coil for the bottom surface for heating the bottom surface part;
The height dimension in the conveying direction is substantially the same as the length dimension in the conveying direction of the rice cooker, and is disposed so as to be opposed to each other, and the height of the side material on both sides in the conveying direction of the rice cooker contains the material to be heated. With a side induction heating coil that forms a pair facing the part to the extent and heating the side parts on both sides of the rice cooker in the conveying direction,
Separate inverters are connected to the left and right side induction heating coils and the bottom induction heating coils between the left and right side induction heating coils, and the heating power of these bottom induction heating coils and the side induction heating are connected. The heating power of the coils can be adjusted individually,
In the conveying direction of the rice cooker, the heating power of the plurality of bottom induction heating coils along the conveying direction of the rice cooker can be individually adjusted by changing the inverter output, and a plurality of the heating powers along the conveying direction of the rice cooker The heating power of the side induction heating coil can be adjusted individually by changing the inverter output,
The steaming heating unit includes a heater unit having a sheathed heater unit supported by a rectangular plate-shaped heater support unit elongated in the transport direction,
The hot air from the heater unit rises while being guided by the guide plate portions protruding upward from the both side end portions along the longitudinal direction of the heater support portion, and the bottom surface portion of the rice cooker and the four side portions on the left and right sides A continuous rice cooker characterized by heating .

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