JP3047099U - "Microwave oven with hopper, hopper and heat sealer and / or mobile heating table and / or decompression device" - Google Patents

Abstract

(57) [Summary] [Problem] To obtain a microwave oven equipped with a device for quickly filling a perishable water-containing food composition such as okara into a packaging bag, sealing it as it is fresh, sterilizing with heat, dehydrating and cooling. [Constitution means] A hopper is provided on the outer shell side surface of the microwave oven,
The okara put into the hopper is filled and sealed in a packaging bag, and quickly heat-sterilized in a microwave oven and dehydrated and cooled.
A movable heating table is extended to the door of the microwave oven.
Okara in a 0 kg packaging bag can be easily taken in and out. Further, the heat energy imparted by heat sterilization is used as latent heat for dehydration. As a result, "Okara" which has been sterilized by heating, partially dehydrated, cooled and left as it is is provided and effectively used as a vacuum package of "Okara".

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a microwave oven, particularly for quickly filling and packing 5 to 10 kg of okara for business use in a packaging bag and then performing heat sterilization and dehydration / cooling treatment in the microwave with the packaging bag. In addition, the present invention relates to a device for facilitating the filling and sealing of the okara in a packaging bag, and for easily putting the heavy packaging bag into and out of a microwave oven.

[0002]

[Prior art]

 Okara, a by-product of tofu production, has a temperature of about 75 ° C. and a water content of 70-80% immediately after the separation of soy milk, and has high nutritional value. Is a suitable cultivation place, and is easily rotted. Alternatively, maggots or the like easily become a suitable hatching place for laying eggs such as flies. In the past, everything was effectively used for food, feed, etc., but recently, it has been hardly used for food due to changes in taste, and livestock farming has been isolated far away from the tofu production area. It is no longer used as feed. Although some are effectively used, most of them have been treated by burying decaying okara in the ground, dumping it into the ocean, burning it, etc. ing. In recent years, the disposal of okara has become a problem, and there has been a demand for effective use. Various processing apparatuses have been proposed, but all of them are apparatuses for medium to large-scale companies. For example, in the case of a screw-type continuous pressing device, the processing capacity per hour is as high as 500 to 1000 kg. On the other hand, small-scale (individual-scale) establishments that produce 30-70 kg of okara per day have no suitable treatment equipment, and the cost for disposal is increasing, and they are being pushed into trouble every day.

[0003] In view of the above facts, the inventor of the present invention has conducted various studies on a method of effectively using okara generated at a small-scale business facility without spoiling it. As a result, fresh okara immediately after generation has been quickly and airtightly packed. This led to the development of technology for filling and sealing the inside, and then heat-sterilizing it with microwaves. In this invention, to sterilize by heating in a microwave means heating in a so-called microwave oven. The results of examining conventional microwave ovens are as follows. Naturally, none of them had the functions required by the inventor. That is, there are various types of conventional microwave ovens. Among them, there is a microwave oven which is close to the intended use as shown in FIG. However, in conventional microwave ovens, both the volume and the heating capacity are small, so they cannot be actually used as they are, but this will be compared assuming that they have a capacity capacity equivalent to that of the present invention. When heating the microwave oven, first, the okara is filled and sealed in the packaging bag 2 shown in FIG. 2 outside the microwave oven 1, and then placed on the heating table 3, and the door 4 is closed and passed. It is heated by microwaves irradiated into the heating chamber from the magnetron outside the heating chamber. In order to fill 5 to 10 kg of okara into the packaging bag 2, the okara 6 is put into a separately prepared hopper 5 shown in FIG. 3, and the opening of the packaging bag 2 in contact with the lower portion 7 of the hopper 5 is opened. There was no other method than filling the packaging bag 2 from the part 8 and then heat-sealing the opening 8 with a separately prepared heat sealer 9 shown in FIG. 2 and 4, reference numeral 11 denotes a valve mechanism.

[0004] Each of these devices is a single unit, and the work is dispersed and performed separately, so that not only takes time, but also wastes a lot of space, equipment costs, cleaning, management, and the like. .

[0005] A heavy packaging bag 2 containing 5 to 10 kg of okara 6 must be placed on the heating table 3 of the microwave oven 1. Then, when the door 4 of the microwave oven 1 is closed and heating is completed, the door 4 must be opened to take out the packaging bag 2 from the heating table 3. Since the conventional microwave oven 1 has to be carried out in such a manner that a heavy packaging bag is brought into the heating chamber and a hand is taken out to take out the packaging bag, the packaging bag 2 is inserted into and removed from the microwave oven 1. If the heavy packaging bag 2 hits somewhere in the microwave oven 1 due to losing its weight, the packaging bag 2 will be torn. In addition, “Okara” usually has a high porosity like sponges and is bulky and unstable, so the biggest problem is that when you take out a heavy, hot packaging bag heated to 95-100 ° C, you may suffer burns or other problems. It is easy for accidents to occur.

[0006]

[Problems to be solved by the invention]

 The problem to be solved by the present invention is to provide a microwave oven which can quickly fill and seal a packaging bag, and easily heat sterilize it, since the produced fresh okara is extremely susceptible to spoilage. It is to be. Utilizing the high thermal energy of this high heat okara as latent heat of evaporation, the okara in the packaging bag is cooled and simultaneously dehydrated to reduce its weight.

[0007]

[Means for Solving the Problems]

 The idea is to attach a hopper directly or detachably to the side of the microwave oven case, to provide a heat sealer as needed, and to use a mobile heating table that can be extended and retracted outside the microwave oven case. It is characterized by the provision of a vacuum dehydrator and a decompression dehydrator, which is attached to a microwave oven, quickly fills the packaging immediately after it is produced, seals it with a heat sealer, and brings it into a heating chamber. By carrying out all the treatments described above, the purpose of sterilizing okara fresh, dehydrating and cooling it, and filling the packaging bags was achieved.

[0008]

[Embodiment of the invention]

 According to this invention, the hopper is attached to the side of the case of the microwave oven and the heat sealer is provided, which not only makes the device compact, but also fills the packaging bag with okara at the same position and heat seals the opening of the packaging bag. The work can be done continuously and can be quickly fed into the microwave by the mobile heating table. Since all equipment is concentrated on the side of the microwave oven case, it can be used in a small space, and okara is processed quickly, so that fresh okara is supplied in a packaging bag and heat sterilized . Then, Okara is provided that is dehydrated and cooled to make it lighter, and that the subsequent processes such as drying are easier and can be handled with energy saving.

[0009] The packaging bag used here is preferably a thermoplastic synthetic resin film that transmits microwaves and is heat-resistant and non-breathable. For example, in the case of a single layer, low-density polyethylene, polypropylene, polyamide, saturated polyester, etc. In the case of multiple layers, a low-density polyethylene film may be attached to these with an adhesive. Preferably, the packaging bag has a slit, a small hole or a valve mechanism. These are intended to eliminate the air, water vapor, etc. that expand when the okara is filled in a packaging bag and sealed and heated in a microwave oven, thereby preventing the packaging bag from bursting. Immediately after being removed from the microwave, the slit, small hole or valve mechanism is sealed with an adhesive tape or the like. The microwave used has an oscillating frequency of 2450 MHz, preferably 915 MHz, which has better transmission power. The hopper is publicly known and its shape and size are not limited. The hopper is detachably provided on both the left and right sides of the case side of the microwave oven. As the heat sealer, any of an electric heating system, a high frequency system, an ultrasonic system, and other publicly known heat sealers can be used. It is preferably detachable and preferably located at the outlet of the hopper, and like the hopper, can be detachably mounted on both the left and right sides of the outer shell side of the microwave oven.

[0010] The heating table may be fixed in a microwave oven, but it is preferable that the heating table be provided with a movable heating table that can be put in and out of a door that is opened so as to fall forward. Further, the door may be opened sideways and the movable heating table may be extended by a known slide structure like a drawer of a steel desk. A known pantograph-shaped extension frame is provided below the movable heating table. The mobile heating table may be fed out. A free caster is preferably provided below the heating table, but a combination of four feed casters and three rotating casters may be used. A microwave oven that can be rotated as needed is preferable.

The heating chamber of the microwave oven is hermetically sealed as required, and the pressure can be reduced outside the microwave oven by a pressure reducing device (vacuum pump) preferably provided in the case of the microwave oven. A well-known thing can be applied to the method of the closed door and the hinge. Although the apparatus for treating okara has been described above, the invention is not limited to this, and a perishable water-containing food composition can be applied. , Cooked rice, boiled food, etc. Furthermore, it goes without saying that those which are filled in a packaging bag using a hopper and subjected to heat treatment in a microwave oven and also those which are dehydrated under reduced pressure are included.

[0012]

Embodiment 1 An apparatus using a microwave oven suitable for a small-scale business establishment according to the present invention will be described with reference to the drawings. Hereinafter, the same components are denoted by the same reference numerals, and description thereof will be omitted. FIG. 5 shows the entirety of the present invention, in which the microwave oven 1 is mounted on a gantry 12. A hopper 5 is attached to the left side of the case of the microwave oven 1 so as to be fixed or detachable. The hopper 5 can be removed for cleaning. A heat sealer 9 is provided slightly below the hopper 5 and a packaging bag stand 13 is further below the heat sealer 9. The packaging bag stand 13 and the heat sealer 9 can also be detached. The packaging bag stand 13 is moved up and down to a position indicated by a dotted line 13 'as required. The packaging bag 2 indicated by the dotted line is placed on the packaging bag stand 13, and the opening 8 of the packaging bag 2 contacts the lower part 7 of the hopper 5, and the okara 6 passing through the hopper 5 is filled. Swelling. When the packaging bag 2 is filled with a predetermined amount of okara 6, the packaging bag stand 13 is lowered to a dotted line 13 ', and the opening 8 of the packaging bag 2 is removed from the hopper 5. Then, the opening 8 of the packaging bag 2 is heat-sealed 10 and sealed by the heat sealer 9 provided below the hopper 5. The heat sealer 9 is formed by ultrasonic waves and has a length of 300 mm with a 380 W one-side heater heating method. Heat sealing with a width of 2 mm is performed.

Next, the packaging bag 2 is placed on a movable heating table 3 ′ indicated by a dotted line provided on a door 4 which is opened so as to fall before the microwave oven 1 shown in FIG. The movable heating table 3 'is one in which the heating table 3 of the microwave oven 1 is moved up to above the door 4 and unreeled. A limit plate 14 is provided on the door 4 to limit the movement of the movable heating table 3 ′ and prevent the movable heating table 3 from falling from the door 4. As shown in FIG. 6, a swivel caster 15 is provided at the lower part of the movable heating table 3. Then, the caster 15 can be fitted into the circular groove 17 provided in the bottom plate 16 of the heating chamber and rotated at the same time when the center 19 is matched with the rotation shaft 18. Preferably, four casters 15 are provided to facilitate lateral movement, and it is preferable that a part of the circular groove 17 extends to the inner surface of the door 4 like a rail and serves as a guide. Further, if necessary, a handle 20 can be provided on the movable heating table 3 and pushed and pulled to make the four casters 15 always face the same direction. Then, the packaging bag 2 can be moved while being placed on the movable heating table 3 ′ and easily stored in the microwave oven 1. 21 is a deceleration motor and 22 is a ventilation hole. Then, the door 4 is closed, the microwave oven 1 is operated, and heat sterilization is performed. The movable heating table 3 is rotated on the circular groove 17 as necessary. At this time, the water vapor generated in the packaging bag 1 and the expanded air are discharged out of the slits, small holes or the valve mechanism 11 shown in FIG. When the predetermined processing is completed, the power is turned off by opening the door 4 and the movable heating table 3 'is fed out onto the door 4 (shown by the upper dotted line in FIGS. 5 and 6), and the packaging bag 2 is taken out. At this time, the surface temperature of the packaging bag 2 has risen to a maximum of 95 to 100 ° C., and there is a danger of being burned with bare hands. Furthermore, when the packaging bags are taken out and piled up in the corner of the room, they continue to radiate heat for a long time.

[0014]

Embodiment 2 In this embodiment, the microwave oven 1 is further provided with a dehydration cooling device. The exhaust port 23 in FIG. 5 is connected to a pressure reducing device, that is, a vacuum pump (not shown) provided outside the heating chamber. In this case, the heating chamber of the microwave oven 1 has a closed structure. A gasket 24 is provided around the door 4 and can be used as a vacuum container. As an example of the closed structure, a description will be given of a case where the hinge 26 of the elliptical hole 25 shown in FIG. 8 is used. When the door 4 is opened by the hinge 26 of the oval hole 25, the bottom plate 16 of the microwave oven 1 and the inner surface of the door 4 are at the same height, and when the door 4 is closed as indicated by a dotted line 27, the door 4 is lowered slightly. As a result, the entire gasket 24 comes into contact with the flange surface 28 of the microwave oven 1 to seal it. The heating table 3 can be moved laterally directly onto the door 4 by the movable heating table 3 ′ as in the first embodiment, and the casters 15 of the bottom plate 16 of the microwave oven 1 fit into the circular grooves 17. ing. FIG. 7 shows an example of the bottom of the microwave oven 1 having a closed structure. The bottom plate 16 is a thin plate of non-magnetic stainless steel SUS304 without holes such as a rotating shaft. A magnet A provided on the back of the heating table 3 is magnetically fitted by a rotating magnet B provided on both sides of the bottom plate 16 so that the movable heating table 3 is rotated by the deceleration motor 20. Has become. The heating table extended in FIG. 7 is indicated by a dotted line 3 '. The movable heating table 3 'on which the packaging bag 2 is placed on the door 4 is sent into the microwave oven 1 and the casters 15 are fitted into the circular grooves 17 and rotated, and are simultaneously heated by the magnetron.

At the time of discharging the water vapor or the like, the packaging bag is connected to a part of the microwave oven 1 by connecting a depressurizing device (vacuum pump) (not shown) through an exhaust port 23 to reduce the pressure inside the microwave oven 1. The okara in 2 is dewatered and cooled at the same time. When the okara at 95 ° C. is dehydrated under reduced pressure to 30 ° C., since the latent heat of evaporation of water is 540 cal / g, it is assumed that 10 kg of okara is treated, and theoretically (95−30) × 10 kg / 540 ≒ 1 kg. As much as 1 kg of water is dehydrated while being cooled to a safe temperature. This dehydration under reduced pressure is continued while energy is supplied in the microwave oven. And further (100-300 g) of water is dehydrated. In addition, the degree of vacuum of a suitable pressure reducing device at 30 ° C. is 31.82 (Toll). The following processing is the same as in the first embodiment.

[0016]

[Effect of the invention]

 According to this invention, various effects listed below can be obtained. (1) Since the hopper, heat sealer, decompression device and microwave oven are concentrated in one place, it can be used in a narrow place and the following processing can be performed quickly and without difficulty. "Raw Okara": → Insert hopper → Fill in bag → Heat seal → Process in microwave oven (heat sterilization / decompression / dehydration / cooling) → Remove: "Sterile dehydration Okara" in packaging bag (2) Fresh "Okara" remains fresh Vacuum packed for long-term storage without rot or contamination. (3) It is low in bulk and hard and easy to handle. (4) It can be effectively used as a resource for any purpose. (5) No burns due to being taken out after being cooled and dehydrated. (6) Easy cleaning of the hopper.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventionally known microwave oven.

FIG. 2 is a perspective view of a packaging bag.

FIG. 3 shows an embodiment in which “Okara” is filled using a known hopper.

FIG. 4 is a perspective view of a known heat sealer.
It is sectional drawing.

FIG. 5 is a perspective view showing an embodiment of the present invention.

FIG. 6 shows a door opened toward the user, a heating table,
It is sectional drawing which cut out the principal part which shows the relationship of a rotating shaft.

FIG. 7 is a cross-sectional view of a door opened toward the user, a heating table of a microwave oven that can be hermetically closed, and a main part showing a relationship between a rotation axis and a cutaway view.

FIG. 8 is an explanatory view showing an outline of an elliptical hole hinge that can be hermetically sealed, and is a partially longitudinal side view.

[Explanation of symbols]

 Reference Signs List A magnet B rotating magnet 1 microwave oven 2 packaging bag 3 heating table 3 'mobile heating table extended 4 door 5 hopper 6 "Okara" 7 lower part 8 opening 9 heat sealer 10 heat seal 11 valve mechanism 12 frame 13 packaging bag Stand 13 'Lowered packaging bag stand 14 Limit plate 15 Casters 16 Bottom plate 17 Circular groove 18 Rotation axis 19 Center 20 Handle 21 Reduction motor 22 Ventilation hole 23 Exhaust port 24 Gasket 25 Oval hole 26 Hinge 27 Door closed 28 Flange surface

Claims (4)

[Utility model registration claims] 1. A microwave oven in which a perishable water-containing food composition is filled in a packaging bag and then heated, wherein an opening of the packaging bag is placed below a hopper into which the perishable water-containing food composition is charged. A microwave oven equipped with a hopper, characterized in that the hopper that comes into contact is mounted on the side of the microwave oven case. 2. The microwave oven according to claim 1, further comprising a heat sealer for sealing an opening of a packaging bag filled with the perishable water-containing food composition, below a case side hopper of a microwave oven. Microwave oven with hopper and heat sealer as described 3. A microwave oven whose door can be opened so as to fall to the left or right or forward, wherein the door is opened and a packaging bag filled with a perishable water-containing food composition is placed. A microwave oven provided with a movable heating table so that the heating table can be extended and easily moved into and out of the heating chamber from outside the microwave oven. 4. A microwave oven in which a packaging bag is filled with an easily perishable water-containing food composition and then heated, the heating chamber of the microwave oven has a closed structure, an exhaust port is provided in the heating chamber, and the heating is performed. A microwave oven provided with a decompression device that communicates with an exhaust port outside the room