JP2007061275A - Continuous rice cooking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuous rice cooking apparatus for achieving stable continuous rice cooking and efficient heating of rice cooking pots. <P>SOLUTION: The continuous rice cooking apparatus has a conveying means for moving the rice cooking pots 2 through a heating chamber, and an infra-red ray burner for heating the rice cooking pots 2 in the heating chamber without taking open air into the heating chamber. The rice cooking pot 2 has a pot body 10 having a closed-bottom rectangular pillar shape, and flange parts 16 projected on an upper outer periphery of the pot body 10. The flange parts 16 comprise first flange parts 16a on the right and left of a conveying direction and formed longitudinal in the conveying direction for placing on the conveying means, and second flange parts 16b on the front and rear of the conveying direction and formed longitudinal orthogonally to the conveying direction. Recessed side openings 17 are formed in a lower face of the first flange part 16a so as to open toward the conveying direction. Notched center openings 18 are formed in approximate center parts in a longitudinal direction of the second flange parts 16b so as to open upward and downward. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a continuous rice cooking apparatus that can perform stable continuous rice cooking work and can efficiently heat a rice cooking pot.

Conventionally, for example, an elongate tunnel-shaped heating chamber, a chain conveyor type conveying means for moving a rice cooker having a handle protruding laterally on both sides in the conveying direction through the heating chamber in the conveying direction, and necessary for burning gas There is known a continuous rice cooker including a gas burner group that heats a rice cooker in a heating chamber while taking the outside air into the heating chamber (see, for example, Patent Document 1).
JP-A-9-140577

  However, in the conventional continuous rice cooker, secondary air must be taken in to burn the gas in the heating chamber, and the secondary air should not be taken up in order to maintain good gas combustion. Because the combustion heat in the heating chamber must be discharged sequentially so that it does not stay, an outside air inlet communicating with the outside is provided at the bottom of the heating chamber and a gap between adjacent rice cookers is opened at the top of the heating chamber If the taken-in secondary air enters more than necessary, the flame is shaken and the hot air in the heating chamber is cooled, and the combustion heat rises immediately and the hot air cannot be trapped in the heating chamber. There was a problem that the temperature in the heating chamber was stable and heat cooking could not be performed continuously. Moreover, since the heat generated by gas combustion passes through the surface of the rice cooker and then immediately rises from between adjacent rice cookers and is discharged out of the heating chamber, there is a problem that unevenness occurs in the heating of the rice cooker. There is.

  This invention is made | formed in view of such a point, and it aims at providing the continuous rice cooking apparatus which can heat the rice cooking pot in a heating chamber efficiently while being able to perform the stable continuous rice cooking operation | work.

  The continuous rice cooker according to claim 1, wherein the heating chamber has a tunnel-shaped heating chamber, a conveying means for moving a plurality of rice cookers adjacent to each other in the conveying direction through the heating chamber, and the heating chamber without introducing outside air. A heating unit for heating the rice cooker, and the rice cooker has a bottomed square tube-shaped pot main body part and a flange projecting on the outer periphery on the upper end side of the pot main body part, The section is formed in a first longitudinal portion that is longitudinal in the transportation direction and is placed on the transportation means, and a second longitudinal portion in front and rear of the longitudinal transportation direction in a direction orthogonal to the transportation direction. A concave side opening that opens toward the conveyance direction side is formed on the lower surface portion of each first flange portion, and in the substantially central portion in the longitudinal direction of each second flange portion, A notch-shaped central opening that opens upwards and downwards is formed, and in the heating chamber A plurality of rice cookers adjacent to each other move in the transport direction in a state in which the first rice cake portions are placed on the transport means and the second rice cake portions facing each other are in contact with each other. .

  The continuous rice cooker according to claim 2 is the continuous rice cooker according to claim 1, wherein the heating unit is an infrared burner.

  The continuous rice cooker according to claim 3 is the continuous rice cooker according to claim 2, wherein the infrared burner heats the first infrared burner part for heating the bottom part of the rice cooker and the bottom side corner part of the rice cooker. And 2 infrared burners.

  According to the invention which concerns on Claim 1, since the heating part which heats the rice cooking pot in a heating chamber without taking in outside air in a heating chamber is provided, the stabilization of the temperature in a heating chamber can be aimed at, Therefore, the stable continuous rice cooking In the heating chamber, after the hot air from the heating part has been trapped to some extent below the collar part, the side openings formed in the first collar part on the left and right in the transport direction and 2 Since it flows to the upper side of the buttock through the central opening formed in the cocoon part, it can be heated so as to wrap the whole rice cooker with hot air flowing upward, so the rice cooker in the heating chamber can be efficiently Can be heated.

  According to the invention which concerns on Claim 2, the rice cooking pot in a heating chamber can be heated appropriately with the infrared burner which is a heating part.

  According to the invention which concerns on Claim 3, the 1st infrared-burner part which heats the bottom face part of a rice cooker and the 2nd infrared burner part which heats the bottom face side corner part of a rice cooker make a rice cooker in a heating chamber more Heating can be performed more efficiently.

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

  In FIG. 1, reference numeral 1 denotes a continuous rice cooker. This continuous rice cooker 1 is heated by heating means 4 while continuously moving a plurality of rice cookers 2 adjacent to each other by a chain conveyor type conveying means 3. Is to do.

  As shown in FIGS. 5 to 7, the rice cooking pot 2 protrudes horizontally on the bottomed square tube-shaped pot main body 10 having an opening 6 formed on the upper surface and the outer periphery of the upper end of the pot main body 10. And a flange 16 provided.

  The hook body portion 10 has a bottom surface portion 7 having a substantially rectangular plate shape having a longitudinal direction in a direction orthogonal to the transport direction, and a bottom surface side corner portion having a curved surface and a substantially arc-shaped cross section at a peripheral end portion of the bottom surface portion 7. 8 is provided, and a steeply sloped side surface portion 9 protrudes obliquely upward outward from the upper end portion of the bottom surface side corner portion 8.

  Further, the substantially rectangular annular flange 16 that protrudes horizontally from the upper end side of the four side surface portions 9 of the hook body portion 10, for example, outward from the vicinity of the upper end portion, and is positioned over substantially the entire circumference of the side surface portion 9 is conveyed. It is composed of a first hook portion 16a on the left and right in the transport direction, which is long in the direction and placed on the transport means 3, and a second hook portion 16b on the front and rear in the longitudinal direction in the direction perpendicular to the transport direction. Yes. A plurality of (for example, two) concave side openings 17 opened toward the side in the transport direction are formed on the lower surface of each first flange portion 16a. A notch-shaped central opening 18 that opens upward and downward is formed at a substantially central portion in the longitudinal direction of each second flange portion 16b.

  In addition, the eaves part 16 protrudes in the vicinity of the upper end part of the side part 9 and is located above the heated object (rice, water, etc.) put in the rice cooker 2. In addition, the rice cooker 2 is of such a size that, when an appropriate heated object is placed in the rice cooker 2, a space of at least one third of the whole inside the cooker 2 can be formed on the upper side of the rice cooker 2. is there.

  Further, the openings of the side opening 17 and the central opening 18 are wide enough to discharge exhaust heat to such an extent that the heating means 4 used when cooking per cooker maintains the combustion state.

  In the heating chamber 13, the baking chamber 14, and the steaming chamber 15, the plurality of rice cookers 2 adjacent to each other in the transport direction have the opening 6 closed by the lid 12 and the lower surface portion of the first rice cake portion 16 a The direction of conveyance by the chain part 3a that is mounted on the chain part 3a on both the left and right sides of the conveying means 3 and is rotated by a driving part such as a motor (not shown) while the second flange parts 16b facing each other are in contact with each other. Move to. The chain portion 3a rotatably disposed on both the left and right sides in the heating chamber 13 is constituted by, for example, a roller chain including an inner link and an outer link, and at least in the heating chamber 13, the side opening 17 In other positions, the lower surface portion of the first rice bran portion 16a of the rice cooker 2 and the upper surface portion of the chain portion 3a are in contact with each other so that hot air does not escape sideways.

  On the other hand, the heating means 4 heats the rice cooker 2 moving in the heating chamber 13 without taking outside air (secondary air) into the tunnel-like heating chamber 13 extending in the horizontal direction. An infrared burner 21 is provided as a heating unit that is disposed at the bottom of the chamber 13 and has a simple structure that consumes less gas and that can uniformly heat a wide range.

  As shown in FIG. 2, the infrared burner 21 has a structure that does not require secondary air, and is disposed facing the bottom surface of the heating chamber 13. That is, for example, the infrared burner 21 is opposed to the first infrared burner portion 22 that heats the bottom surface portion 7 while facing the bottom surface portion 7 of the rice cooker 2, and the curved bottom surface side corner portions 8 on both the left and right sides of the rice cooker 2. The left and right second infrared burner portions 23 for heating the bottom side corner portion 8 are provided.

  Each of the infrared burners 22 and 23 is, for example, a plurality of juxtaposed along a horizontal conveying direction, and mainly includes a mixing tube 25 and a ceramic plate 27, and the like, and gas and air supplied from a gas supply pipe 26 Are mixed by the mixing tube 25, and the mixed gas is sent to the ceramic plate 27, and the mixed gas is burned on the surface of the ceramic plate 27. Note that the temperature in the heating chamber 13 can be adjusted by stopping the combustion of a part of the infrared burners 22 and 23 arranged in parallel along the conveying direction.

  Here, as apparent from FIG. 2, the tunnel-shaped heating chamber 13 includes a lower cover portion 31 that covers the lower side of the rice cooker 2 that is moving in the heating chamber 13, and a moving portion in the heating chamber 13. A partition is formed with an upper cover portion 32 covering the upper side of the rice cooker 2.

  The lower cover portion 31 is composed of a burner attached plate portion 33 having a longitudinal direction and a substantially U-shaped cross section having a longitudinal direction in the transport direction. The burner attached plate portion 33 includes the first infrared burner portion 22 and the second infrared burner portion 22. Infrared burner portions 23 are respectively attached. The burner mounting plate portion 33 includes a substantially horizontal bottom plate 34, an inclined plate 35 that protrudes obliquely upward from the left and right sides of the bottom plate 34, and a vertical side plate 36 that protrudes upward from the inclined plate 35. is doing.

  And in the lower cover part 31, the hot air of the infrared burner 21 is prevented from escaping by a plurality of adjacent rice cookers 2, but the combustion amount of the gas mixed with the air supplied to the infrared burner 21 is In order not to obstruct complete combustion by the infrared burner 21, the hot air is discharged from the side opening 17 in the first pot portion 16a of the rice cooker 2 and the central opening 18 in the second pot portion 16b to the upper cover portion 32 side. It can be done.

  The upper cover portion 32 has a longitudinal shape having a longitudinal direction in the transport direction, a hot air discharge port 38 formed vertically through the central portion in the width direction, and a heat insulating guide cover portion 39 filled with a heat insulating material (not shown) inside. It is composed of. In addition, the lower surface part of the heat insulation guide cover part 39 is formed in the inclined surface shape so that a hot air may flow toward the hot air discharge port 38 side of the center.

  The steaming chamber 15 and the heating chamber 13 are partitioned vertically by the heat insulating induction cover portion 39, and the lower heating chamber 13 and the upper steaming chamber 15 are communicated with each other through the hot air discharge port 38. That is, the heating chamber 13 is a hot air discharge port 38 at the center in the upper width direction for discharging hot air in the heating chamber 13 by the infrared burner 21 to the outside of the heating chamber 13, that is, into the upper steaming chamber 15, and an opening at one end in the longitudinal direction. It is formed in a tunnel shape opened only by a certain rice cooker inlet 40 and a communication port (that is, a pot carry-out port into the baking chamber) 41 which is an opening at the other end in the longitudinal direction.

  In the standby space (non-heating standby position) located near the rice cooker inlet 40, the burner attached plate portion 33 to which the infrared burner 21 is not attached is disposed as the lower cover portion 31 up to the vicinity of the rice cooker inlet 40, Further, a heat insulating guide cover 39 is disposed as the upper cover portion 32. And the outer wall surface part 43 where the rice cooker inlet 40 opened is configured to cover at least the vicinity of the rice cooker inlet 40 corresponding to the upper cover part 32 covering at least the upper side of the rice cooker 2 so that the rice cooker 2 can pass through. For this reason, at the time of continuous rice cooking work, substantially the entire rice cooker inlet 40 for putting the rice cooker 2 into the heating chamber 13 is closed by the non-heated rice cooker 2 located in the standby space, and the hot air in the heating chamber 13 is heated. The rice cooker entrance 40 does not easily escape from the heating chamber 13.

  As shown in FIG. 4, the baking chamber 14 that communicates with the tunnel-shaped heating chamber 13 includes a lower covering portion 51 that covers the lower side of the rice cooker 2 that is moving in the baking chamber 14, and baking A compartment is formed by an upper cover 52 that covers the upper side of the rice cooker 2 that is moving in the chamber 14.

  The lower cover portion 51 is constituted by a cover plate portion 53 made of, for example, iron having a longitudinal shape having a longitudinal direction in the transport direction and having a substantially U-shaped cross section, and hot air (outside air) is baked into the cover plate portion 53. A plurality of intakes 54 are formed for taking in. The cover plate portion 53 includes a horizontal bottom plate 55 and a vertical side plate 56 protruding upward from the left and right sides of the bottom plate 55.

  A baking infrared burner 57 for heating the cover plate 53 is disposed below the bottom plate 55 of the cover plate 53. The baking infrared burner 57 is mainly composed of the mixing tube 58 and the ceramic. It consists of a plate 60, etc., and the gas and air supplied from the gas supply pipe 59 are mixed by the mixing tube 58, and the mixed gas is sent to the ceramic plate 60, and the mixed gas is burned on the surface of the ceramic plate 60. It is supposed to be.

  On the other hand, the upper cover portion 52 is formed with a hot air discharge port 61 formed in a longitudinal shape having a longitudinal direction in the transport direction and penetrating vertically in the central portion in the width direction, like the upper cover portion 32 that defines the heating chamber 13. The heat insulating guide cover portion 62 is filled with a heat insulating material (not shown), and the lower surface portion of the heat insulating guide cover portion 62 is inclined so that hot air flows toward the hot air outlet 61 side of the center. Is formed. The steaming chamber 15 and the baking chamber 14 are partitioned vertically by the heat insulating induction cover portion 62, and the lower baking chamber 14 and the upper steaming chamber 15 are communicated with each other through a hot air discharge port 61.

  The steaming chamber 15 has a discharge port 65 at the top for discharging hot air in the steaming chamber 15 to the upper side of the continuous rice cooker 1 by driving the exhaust fan 64.

  Next, the operation and the like of the one embodiment will be described.

  In the plurality of rice cookers 2 into which a predetermined amount of rice and water has been introduced, the opening 6 of the pot body 10 is closed with a lid 12, and the lower surface of the first pot portion 16a is the chain portions 3a on the left and right sides of the conveying means 3. In the state where the second flange portions 16b that are placed on each other and are opposed to each other are in contact with each other, for example, tact movement is performed at a desired speed in the transport direction by the rotation of the chain portion 3a.

  In the heating chamber 13, the rice cooker 2 is heated by the infrared burner 21 including the first infrared burner unit 22 and the second infrared burner unit 23, and a “boil” process is performed on the rice in the rice cooker 2.

  At this time, unlike the conventional gas burner, since the outside air does not flow into the heating chamber 13, it does not affect the combustion state of the infrared burner 21, and the hot air in the heating chamber 13 is not cooled. The temperature is stable. In addition, in the heating chamber 13, since the plurality of rice cookers 2 move in the conveying direction in a state where the second rice cake portions 16b are in contact with each other, hot air stagnate below the second rice cake portions 16b. Heat is efficiently transmitted over the entire bottom surface and side surfaces of the rice cooker 2.

  Also, as shown in FIGS. 2 and 5, in the heating chamber 13, the hot air from the infrared burner 21 is provided in the bowl 16 of the rice cooker 2 after being trapped to some extent below the bowl 16. It is discharged upward through the side opening 17 and the central opening 18. As one passage, it flows to the upper side of the flange portion 16 through the side opening portion 17 formed in the first flange portion 16a on the left and right in the transport direction, and wraps around the lid 12. After that, the hot air flows from both sides along the lower surface portion of the heat insulating induction cover portion 39 through the space between the lower surface portion and the upper surface portion of the lid 12 toward the hot air discharge port 38 in the center portion, The hot air discharge port 38 is discharged into the steaming chamber 15. Further, the other passage passes through the central opening 18 formed in the second flange portion 16b before and after the conveying direction, and is directly discharged into the steaming chamber from the hot air outlet 38 positioned above. As described above, in the heating chamber 13, hot air is trapped below the bowl portion 16, and hot air can pass through the upper surface portion of the lid 12 above the bowl portion 16, and hot air that flows upward in the rice cooker 2 as a whole. Therefore, while maintaining the lid 12 at a desired temperature, it is possible to prevent uneven heating in the entire pot and efficiently perform the “cooking” process.

  In addition, in the heating chamber 13, the temperature of the surface vicinity of the part located in the side part 9 of the rice cooker 2 below the bowl part 16 is maintained at 500 degree | times or more (for example, temperature of 500 degree-590 degree | times). It has become.

  The hot air discharged from the side opening 17 is heated from the side portion of the lid 12 toward the center portion, and the hot air discharged from the center opening 18 is heated to the center portion of the lid 12. It has become.

  Furthermore, since the hot air discharged from the central opening 18 is located near the hot air discharge port 38 that leads to the outside of the heating chamber, the exhaust heat of the gas combustion is prevented so as not to hinder the gas combustion by the infrared burner 21. Is quickly discharged from the heating chamber 13.

  Next, in the baking chamber 14, the rice cooker 2 is heated by the heat from the cover plate portion 53 and the hot air taken in from the intake 54, and the “baking” process is performed on the rice in the rice cooker 2. Done.

  As shown in FIGS. 4 and 5, in the baking chamber 14, the hot air taken in from the intake 54 is trapped to some extent below the bowl 16, and is then applied to the bowl 16 of the rice cooker 2. It is discharged upward through the side opening 17 and the central opening 18 provided. As one passage, it flows to the upper side of the flange portion 16 through the side opening portion 17 formed in the first flange portion 16a on the left and right in the transport direction, and wraps around the lid 12. After that, the hot air flows from both sides along the lower surface portion of the heat insulating induction cover portion 62 through the space between the lower surface portion and the upper surface portion of the lid 12 toward the hot air outlet 61 side in the center portion, The hot air exhaust 61 is discharged into the steaming chamber 15. Further, as the other passage, it passes through the central opening 18 formed in the second flange portion 16b in the front and rear of the transport direction, and is directly discharged into the steaming chamber from the hot air outlet 38 positioned above. As described above, in the baking chamber 14 as well, in the heating chamber 13, hot air can be trapped below the brim part 16 and hot air can pass through the upper surface part of the lid 12 above the brim part 16. Since the entire kettle 2 can be heated so as to wrap with hot air that flows upward, the lid 12 can be maintained at a desired temperature, and uneven heating can be prevented throughout the kettle, enabling efficient "baking" processing. is there.

  After such a “baking” process, the “steaming” process is performed in the steaming chamber 15 with hot air from the hot air discharge ports 38 and 61, and the rice cooker 2 after the “steaming” process continues from the rice cooker outlet 71. It is carried out of the rice cooker 1.

  And according to the said continuous rice cooking apparatus 1, the conveying means 3 which moves the rice cooker 2 in the conveyance direction through the tunnel-shaped heating chamber 13, and the inside of the heating chamber 13 without taking in outside air in the tunnel-shaped heating chamber 13 Because it is configured to include an infrared burner 21 that heats the rice cooker 2, the temperature in the tunnel-shaped heating chamber 13 can be stabilized, and thus stable continuous rice cooking can be performed. In this case, hot air can be trapped below the bowl 16 and the whole rice cooker 2 can be heated so as to be wrapped with hot air flowing upward, so that the rice cooker 2 in the heating chamber 13 can be efficiently heated.

  Further, the hot air in the heating chamber 13 by the infrared burner 21 can be appropriately discharged into the steaming chamber 15 from the hot air discharge port 38 at the upper part of the heating chamber 13, and therefore, continuous rice cooking work can be performed efficiently.

  Further, during the continuous rice cooking operation, since substantially the entire rice cooker inlet 40 of the heating chamber 13 is closed by the rice cooker 2 located in the standby space, the hot air in the heating chamber 13 is transferred from the rice cooker inlet 40 to the outside of the heating chamber 13. Escape can be prevented, and continuous rice cooking can be performed more stably and efficiently.

  The continuous rice cooker 1 is not limited to the configuration in which the steaming chamber 15 is formed above the heating chamber 13. For example, a configuration in which the heating chamber is extended to make this extended portion a steaming chamber, or the steaming chamber itself is used. The structure etc. which do not have may be sufficient.

  In addition, for example, a heating chamber having a shape that does not have a baking chamber and a steaming chamber and is opened only at the hot air outlet at the center in the upper width direction, the rice cooker inlet at one end in the longitudinal direction, and the rice cooker outlet at the other end in the longitudinal direction. The structure which has may be sufficient.

  Furthermore, the heating unit that heats the rice cooker 2 that is moving in the heating chamber 13 without taking outside air into the heating chamber 13 may be other than the infrared burner as long as the heating unit is heated equivalent to the infrared burner.

It is side view sectional drawing which shows one Embodiment of the continuous rice cooking apparatus of this invention. It is front view sectional drawing of the heating chamber part of a continuous rice cooker same as the above. It is front view sectional drawing of the pot inlet part of a continuous rice cooker same as the above. It is front view sectional drawing of the baking chamber part of a continuous rice cooker same as the above. It is a side view which shows the rice cooking pot currently conveyed by the conveyance means of a continuous rice cooker same as the above. It is a top view which shows a rice cooker same as the above. It is a perspective view which shows a rice cooker same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Continuous rice cooker 2 Rice cooker 3 Conveying means 7 Bottom part 8 Bottom side corner
10 Hook body
13 Heating chamber
16 Buttocks
16a 1st part
16b 2nd part
17 Side opening
18 Central opening
21 Infrared burner as heating section
22 First infrared burner
23 Second infrared burner

Claims (3)

A tunnel-like heating chamber,
Conveying means for moving a plurality of rice cookers adjacent to each other in the conveying direction through the heating chamber;
A heating unit for heating the rice cooker in the heating chamber without taking outside air into the heating chamber,
The rice cooker has a bottomed rectangular tube-shaped pot main body part, and a flange protruding from the upper end side outer periphery of the pot main body part,
The flange part has a first hook part which is longitudinal in the transport direction and is placed on the transport means, and left and right first hook parts in the direction perpendicular to the transport direction. And consists of
On the lower surface portion of each of the first flange portions, a concave side opening that opens toward the conveyance direction side is formed,
A substantially central portion in the longitudinal direction of each second collar portion is formed with a notch-shaped central opening that opens upward and downward.
In the heating chamber, a plurality of rice cookers adjacent to each other move in the transport direction in a state where the first salmon portions are placed on the transport means and the second salmon portions facing each other are in contact with each other. A continuous rice cooker characterized by that. The continuous rice cooker according to claim 1, wherein the heating unit is an infrared burner. Infrared burner
A first infrared burner for heating the bottom of the rice cooker;
It has a 2nd infrared burner part which heats the bottom face side corner part of a rice cooker. The continuous rice cooker of Claim 2 characterized by the above-mentioned.

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