JP2005253422A - Steam-kneading machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steam-kneading machine which can maintain the concentration of a fluid at a place near to a rotation shaft, simultaneously knead, cool or occlude a gas for preserving a food, and increase the content of air in a dough. <P>SOLUTION: This steam-kneading machine which comprises a stirring container 6 having a steam-kneading chamber 5 therein, a rotation shaft 7 rotated in a state projected in the steam-kneading chamber 5, and a stirring blade 8 attached to the surface of the rotation shaft and used for kneading a material charged in the steam-kneading chamber 5 is characterized by disposing one or more rotating fluid-supplying portions 17 each having a plurality of rotating fluid blowout holes 18 along the longitudinal direction of the rotation shaft 7, and preferably further having fixed fluid blowout holes 27 on the inner circumferential surface of the stirring container 6. Since the fluid is blown out from the rotation shaft toward the inner circumferential surface of the stirring container, the kneading, the cooling or the occlusion of the gas for preserving the food in the dough can be carried out, while the concentration of the fluid at a place near to the rotation shaft is kept at a high level. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a steaming machine for producing doughs such as rice cakes and dumplings, or livestock and fishery products.

  A conventional steaming machine has been proposed in which fluid is blown out from a fluid blowing hole of a stirring blade. FIG. 5 shows an example of such a conventional steaming machine. This steaming machine is provided with a stirring container 6 having a cylindrical steaming chamber 5 inside, with a charging cover 3 and a discharging cover 4 attached to a material charging port 1 and a dough discharging port 2, respectively. In the steaming machine, a rotating shaft 7 that rotates in a predetermined direction in a state of protruding into the steaming chamber 5 is provided, and a tip side portion of the rotating shaft 7 protruding into the steaming chamber 5 A stirring blade 8 is attached. A drive source 11 such as a motor is attached to the rear end side of the rotary shaft 7 via a chain 9 and sprockets 10a and 10b. In addition, rust preventive materials, such as stainless steel, are used as a raw material of the charging lid 3, the taking-out lid 4, the stirring container 6, the rotating shaft 7, and the stirring blade 8.

  A cylindrical cavity is formed inside the rotary shaft 7 and serves as a fluid supply path 12. The fluid supply path 12 communicates with a fluid introduction path 13 formed in the stirring blade 8. In the stirring blade 8, a plurality of fluid blowing holes 14, 14,... Are formed in the direction opposite to the rotation direction of the rotary shaft 7. The fluid supply path 12 communicates with a steam supply source, a cooling gas supply source, and a food storage gas supply source (not shown) via an on-off valve attached to each supply source, and steam, cooling gas, or food. A fluid such as a storage gas is selectively supplied. Thereby, the fluid supplied to the fluid supply path 12 is blown out into the steaming chamber 5 through the fluid introduction path 13 and the fluid blowing holes 14, 14.

  An example of a procedure for performing steaming using the steaming machine having the above-described configuration will be described below. First, a particulate material containing water is charged into the steaming chamber 5 from the material charging port 1. Next, after the closing lid 3 is closed and sealed, the drive source 11 is activated to rotate the rotating shaft 7 and the stirring blade 8 to mix the materials for a predetermined time. During this mixing, the steam supply source is activated to generate steam, the steam supply opening / closing valve is opened, and the steam passes through the fluid supply path 12, the fluid introduction path 13, and the fluid blowout holes 14, 14,. Supply into the kneading chamber 5. As a result, the material is steamed. At this time, since the fluid blowing holes 14, 14,... Are formed on the surface of the stirring blade 8 facing in the direction opposite to the rotation direction of the rotating shaft 7, there is little chance of directly adhering to the material. Clogging is difficult to occur.

After completion of the steaming, the steam supply source on-off valve is closed and the steam supply source is stopped. When it is desired to rapidly cool the dough immediately after the steaming, a cooling gas such as air from a cooling gas supply source passes through the fluid supply path 12, the fluid introduction path 13, and the fluid blowing holes 14, 14,. Supply the inside and cool the dough. In addition, when it is desired to store the dough for a long period of time, a food storage gas such as nitrogen is supplied into the steaming chamber 5 through the flow path instead of the cooling gas, and the food storage gas is occluded by the dough. .
Examples of this type of steamer include those shown below.
No. 7-25036

  However, the steaming machine in which the fluid is blown out from the fluid blowing holes 14, 14,... Of the stirring blade has the following drawbacks. The first drawback is that the fluid blown out from the fluid blowing holes 14, 14,... Collects on the inner peripheral surface 15 of the stirring vessel 6 because it receives centrifugal force due to the rotational motion of the stirring blade 8. Therefore, the concentration of the fluid in the vicinity of the rotating shaft 7 is reduced, and uneven steaming of the dough, uneven cooling, or uneven storage of the food storage gas occurs. A second drawback is that the fluid blowing holes 14, 14,... Are formed in the stirring blade 8 facing in the direction opposite to the rotation direction of the rotating shaft 7, so that the fluid cannot be directly sprayed on the material. Therefore, it is difficult to increase the air content of the dough. A third drawback is that the heat of steam passing through the fluid supply path 12 is transmitted to the functional members such as the bearings 16 and 16 by heat transfer. Therefore, the functional member may be fatigued by heat.

  The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a steaming machine that can solve the three drawbacks of the conventional steaming machine.

To solve this problem,
The invention according to claim 1 includes a stirring vessel having a steaming chamber therein, a rotating shaft that rotates in a state of protruding into the steaming chamber, and a material that is attached to the rotating shaft and is charged into the steaming chamber. A kneading machine equipped with kneading blades,
The steamer includes one or more rotating fluid supply units having a plurality of rotating fluid blowing holes along the longitudinal direction of the rotating shaft.

  The invention according to claim 2 is the steamer according to claim 1, wherein the rotating fluid supply part facing the direction opposite to the rotating direction of the rotating shaft has a rotating fluid blowout hole.

  The invention according to claim 3 is the steaming machine according to claim 1 or 2, wherein the rotating fluid supply part has rotating fluid outlets facing the longitudinal direction of the rotating shaft at both ends.

  According to a fourth aspect of the present invention, a fluid supply path is formed in the rotating shaft, and fluid is supplied from the fluid supply path to the rotating fluid supply section. It is a steaming machine.

  According to a fifth aspect of the present invention, a fluid supply pipe is provided in the take-out lid of the stirring container, and when the take-out cover is closed, an outlet at one end of the fluid supply pipe comes into contact with a fluid supply path formed in the rotating shaft. The steamer according to any one of claims 1 to 4, which is configured as described above.

  A sixth aspect of the present invention is the steamer according to any one of the first to fourth aspects, wherein a stationary fluid blowing hole is provided on the inner peripheral surface of the stirring vessel.

The invention according to claim 7 includes a stirring vessel having a steaming chamber therein, a rotating shaft that rotates in a state of protruding into the steaming chamber, and a material that is attached to the rotating shaft and is charged into the steaming chamber. A kneading machine equipped with kneading blades,
This is a steamer having a stationary fluid outlet on the inner peripheral surface of the stirring vessel.

  According to the steaming machine of claim 1, since the fluid is blown out from the rotating shaft toward the inner peripheral surface of the stirring vessel, food preservation by steaming, cooling or dough while keeping the fluid concentration near the rotating shaft high. Occlusion of the working gas can be performed.

  According to the steaming machine of claim 2, since the rotating fluid outlet is formed in the rotating fluid supply portion facing the direction opposite to the rotating direction of the rotating shaft, there is less chance of directly adhering to the material. Clogging due to the material can be prevented.

  According to the steamer according to claim 3, since the fluid blowing holes formed at both ends of the fluid supply part blow out the fluid along the longitudinal direction of the rotating shaft, the steaming unevenness of the dough located at both ends of the rotating shaft is performed. Uneven cooling or uneven storage of food storage gas can be prevented.

  According to the steaming machine of the fourth aspect, since the fluid supply path is formed in the rotating shaft, the fluid can be supplied to the rotating fluid supply unit without reducing the input capacity of the steaming chamber. Moreover, since the fluid flow path can be shortened, the condensation of the vapor in the flow path is reduced.

  According to the steaming machine of claim 5, the steam passes through the fluid supply pipe provided in the take-out lid, and is supplied into the steaming chamber through the fluid supply path in the rotating shaft protruding into the steaming chamber. Therefore, it is possible to prevent the heat of steam from being transmitted into the steamer.

  According to the steaming machine of claim 6, since the fluid is blown out from both the rotating shaft and the inner peripheral surface of the stirring vessel, the food is made by steaming, cooling or dough without causing unevenness in the material in a short time. Storage gas can be occluded.

  According to the steaming machine of claim 7, since the stationary fluid blowing hole formed on the inner peripheral surface of the stirring vessel blows out the fluid so as to face the material rotating in the steaming chamber by the stirring blade, While increasing the air content of the dough, steaming, cooling, or occlusion of food preservation gas by the dough can be performed.

  Hereinafter, an embodiment of the steaming machine of the present invention will be described in detail with reference to FIGS. 1 to 4, the same components as those in FIG. 5 shown as the conventional example are denoted by the same reference numerals, and the description thereof is omitted. In the following description, a fluid using steam is described.

  FIG. 1 shows an example of a steaming machine of the present invention. In the steaming machine of this example, the difference from the conventional steaming machine shown in FIG. 5 is that a plurality of rotating fluid blowing holes 18, 18,. The points where the rotary fluid supply parts 17 and 17 are installed, the point where the fluid supply pipe 20 is provided in the take-out lid 4, and the plurality of stationary fluid blowing holes 27, 27,. The point attached to the inner peripheral surface 15, and the stirring blade 8 has a solid structure, and there is no fluid introduction path 13 through which steam or the like flows, and fluid blowing holes 14, 14,. It is a point that is not formed.

  As shown in FIG. 2, two rotating fluid supply units 17 and 17 are attached to the rotating shaft 7 at positions facing each other. The rotary fluid supply parts 17 and 17 have a prismatic appearance extending in the longitudinal direction of the rotary shaft 7 and the inside thereof is hollow. Further, a plurality of rotating fluid blowing holes 18, 18,... Are formed in the rotating fluid supply sections 17, 17 along the longitudinal direction of the rotating shaft 7 in the direction opposite to the rotating direction of the rotating shaft 7. Further, rotating fluid blowout holes 18, 18,... Are formed at both ends of the rotating fluid supply units 17, 17 so as to face the longitudinal direction of the rotating shaft 7.

  On the other hand, the rotating shaft 7 is formed with a bottomed cylindrical cavity at the tip thereof to form a fluid supply path 19. The axial length of the fluid supply path 19 is 10% to 30% of the length of the portion of the rotary shaft 7 that protrudes from the tip surface of the rotary shaft 7 into the steaming chamber 5. Most of them are solid. In addition, one end of the fluid supply path 19 is open to the tip surface of the rotating shaft 7. The other end of the fluid supply path 19 is communicated with the internal space of the rotary fluid supply parts 17 and 17 through a hole formed in the rotary shaft 7, and steam is supplied from the fluid supply path 19 to the rotary fluid supply. It flows into the parts 17 and 17.

  As shown in FIGS. 3A and 3B, the take-out lid 4 has a double wall structure, and a fluid supply pipe 20 is provided therein. One end of the fluid supply pipe 20 opens at the outer edge of the take-out lid 4 and serves as a fluid inlet 23. The fluid inlet 21 is connected to a fluid supply source. The other end of the fluid supply pipe 20 is connected to a fluid discharge port 22 formed at the center of the inner wall of the take-out lid 4. A fluororesin packing 23 is attached to the fluid discharge port 22 to prevent vapor leakage.

  On the other hand, the tip of the rotating shaft 7 where the fluid supply path 19 is formed comes into contact with the fluororesin packing 23 when the take-out lid 4 is closed. As a result, the steam flowing in from the fluid introduction port 21 of the take-out lid 4 passes through the fluid supply pipe 20 in the take-out lid 4, flows into the fluid supply path 19 of the rotary shaft 7 through the fluid discharge port 22, and further rotates. It passes through the fluid supply parts 17 and 17 and is blown out into the steaming chamber 5 from the plurality of rotary fluid blowout holes 18, 18... Of the rotary fluid supply parts 17 and 17.

  As shown in FIGS. 4 (a) and 4 (b), two stationary fluid supply units 25, 25 made of welded cylindrical pipes are attached to the outer peripheral surface 24 of the stirring vessel 6. The installation positions of the stationary fluid supply units 25 and 25 are diagonally upward to the right when viewed from the dough outlet 2 side of the stirring container 6. In addition, fluid supply ports 26 and 26 are attached to the stationary fluid supply units 25 and 25 and connected to a fluid supply source. On the other hand, a plurality of stationary fluid blowing holes 27, 27,... Are formed in the vicinity of the stationary fluid supply portions 25, 25 on the inner peripheral surface 15 of the stirring container 6 along the longitudinal direction of the rotating shaft 7. Thereby, the steam flowing in from the fluid supply ports 26, 26 passes through the stationary fluid supply parts 25, 25 and is blown out into the steaming chamber 5 from the stationary fluid blowing holes 27, 27,.

  In addition, cleaning water supply valves 28 and 28 are connected to one end of the stationary fluid supply units 25 and 25, and cleaning water discharge valves 29 and 29 are connected to the other end. As a result, when the material is clogged in the stationary fluid supply units 25 and 25, wash water such as warm water is allowed to flow from the wash water supply valves 28 and 28, and the internal material is passed through the wash water discharge valves 29 and 29. Can be discharged to the outside.

  Rotating fluid supply units 17, 17, rotating fluid outlets 18, 18,..., Fluid supply path 19, fluid supply pipe 20, fluid introduction port 21, fluid discharge port 22, stationary fluid supply units 25, 25 described above. The fluid supply ports 26, 26 and the stationary fluid blowing holes 27, 27,... Can also be used for blowing and supplying cooling gas or food storage gas.

  An example of a procedure for performing steaming using the steaming machine according to the present invention will be described below. The operation until the start of steaming is the same as in the conventional example. In the steamer according to the present invention, the steam from the steam supply source is supplied to the fluid supply pipe 20 through the fluid introduction port 21 of the take-out lid 4, and the fluid discharge port 22, the fluid supply path 19, the rotating fluid supply unit. 17 and 17 and the rotating fluid blowing holes 18, 18,... Are blown out into the steaming chamber 5.

  As a result, since the heat of the steam is not transmitted to the steamer other than the take-out lid 4 and the steaming chamber 5, the functional members such as the bearings 16 and 16 in the steamer can be prevented from being fatigued by heat. On the other hand, since steam is blown out from the rotating shaft 7 toward the inner peripheral surface in the steaming chamber 5, steaming can be performed while keeping the steam concentration in the vicinity of the rotating shaft 7 high. Further, the steam can be directly blown to the material located at both ends of the rotating shaft 7 by the rotating fluid blowout holes 18, 18,... Formed at both ends of the rotating fluid supply unit 17. Further, since the rotating fluid blowing holes 18, 18,... Face in the direction opposite to the rotation direction of the rotating shaft 7, there is little opportunity to directly adhere to the material, and therefore clogging by the material is less likely to occur.

  On the other hand, the steam from the steam supply source flows into the stationary fluid supply parts 25, 25 through the fluid supply ports 26, 26 of the stirring container 6, and the stationary fluid blowing holes formed on the inner peripheral surface 15 of the stirring container 6. 27, 27, ... are blown out into the steaming chamber 5. The stationary fluid blowing holes 27, 27,... Blow out steam so as to oppose the material rotating in the steaming chamber 5 by the stirring blade 8, so that a large amount of steam can be included in the material. Therefore, the air content of the dough can be increased. Further, since the stationary fluid blowing holes 27, 27,... Are located above the center of the steaming chamber 5, clogging due to the falling of the material is unlikely to occur.

  The rotating fluid outlets 18, 18,... Formed in the rotating fluid supply portions 17, 17 of the rotating shaft 7 enable an increase in the vapor concentration in the vicinity of the rotating shaft 7, which is difficult in the conventional steaming machine. The material in the steaming chamber 5 has a drawback that it is difficult for steam to reach the inner peripheral surface 15 of the stirring vessel 6. However, since the stationary fluid blowing holes 27, 27,... Are formed on the inner peripheral surface 15 of the stirring vessel 6, steam can be blown out from both the rotating shaft 7 and the inner peripheral surface 15 of the stirring vessel 6. That is, it is possible to spray steam finely on the entire particulate material like a shower. Therefore, the mixing efficiency of the material and steam is increased, the cooking time is short, the economy is excellent, and stable and high-quality dough is produced without causing uneven steaming.

  After completion of the steaming, the steam supply source on-off valve is closed and the steam supply source is stopped. When it is desired to rapidly cool the dough immediately after the steaming, a cooling gas such as air from a cooling gas supply source is blown out from the rotating fluid blowing holes 18, 18,... And the stationary fluid blowing holes 27, 27,. As a result, the dough can be cooled in a short time without causing uneven cooling. In addition, the air content of the dough can be further increased. The doughs such as rice cakes and dumplings having a high air content are softer than conventional ones due to the air bubbles inside, and the softness is maintained for a long time, so that high quality products can be produced.

  When it is desired to store the dough for a long time after the completion of the kneading or cooling, food such as nitrogen from the gas storage source for food storage through the rotating fluid blowing holes 18, 18,... And the stationary fluid blowing holes 27, 27,. The storage gas can be stored in the dough by blowing out the storage gas. Thereby, the gas for food preservation | save is occluded by the whole dough, and storage for a long time is attained. Moreover, the air content of the dough can be further increased by occlusion of the food preserving gas.

  When cleaning is to be performed after using the steaming machine, the cleaning water supply valves 28 and 28 connected to one end of the stationary fluid supply units 25 and 25 are opened to flow cleaning water such as warm water, and the stationary fluid supply unit The material clogged in 25, 25 is discharged to the outside through the wash water discharge valves 29, 29. As another cleaning method, high-pressure steam is supplied from the fluid supply ports 26 and 26, and the material clogged in the stationary fluid supply units 25 and 25 is supplied to the cleaning water supply valves 28 and 28 and the cleaning water discharge valves 29 and 29. It may be discharged to the outside via. As a result, the steamer is kept clean and can be used continuously.

  In the above embodiment, the stirring blade 8 having the spiral portion and the crank portion is illustrated. However, the present invention is not limited to this, and for example, stirring in which two U-shaped portions having a stirring rod are combined. The present invention can also be applied to a blade or a stirring blade obtained by combining this U-shaped portion with the other shape described above. In the present invention, the stirring container 6 is installed horizontally. However, the present invention is not limited to this, and a steaming machine can be configured using a vertical inverted stirring container. Furthermore, in the present invention, the number of the rotating fluid supply units 17 and 17 provided on the rotating shaft 7 is not limited to two as described above, and may be four, six, etc. 7 can also be arranged radially on the outer peripheral surface. Further, the rotating fluid supply units 17 and 17 are not limited to a prismatic shape but may be a cylindrical shape. Furthermore, the blowing direction of the rotating fluid blowing holes 18, 18,... Formed in the rotating fluid supply units 17, 17 may face the rotating direction of the rotating shaft 7 in the positive direction.

It is a lineblock diagram showing an example of a steamer concerning an embodiment of the present invention. It is an appearance slope figure showing an example of a steaming room in a steaming machine concerning an embodiment of the present invention. (A) It is a front view which shows an example of the taking-out lid | cover in the steamer concerning embodiment of this invention. (B) It is a partial cross section figure of the taking-out lid shown to (a). (A) It is an external appearance slope view which shows an example of the stirring container in the steamer concerning embodiment of this invention. (B) It is AA arrow sectional drawing of the stirring container shown to (a). It is a block diagram which shows an example of the conventional steamer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Extraction lid 5 Steaming chamber 6 Stirrer container 7 Rotating shaft 8 Stirring blade 15 Inner peripheral surface 17 Rotating fluid supply part 18 Rotating fluid blowing hole 19 Fluid supply path 20 Fluid supply pipe 25 Stationary fluid supplying part 27 Stationary fluid blowing hole

Claims (7)

A steaming vessel comprising a stirring vessel having a steaming chamber therein, a rotating shaft that rotates in a state of protruding into the steaming chamber, and a stirring blade that is attached to the rotating shaft and kneads the material charged into the steaming chamber. A kneading machine,
A steamer comprising at least one rotating fluid supply section having a plurality of rotating fluid blowing holes along the longitudinal direction of the rotating shaft on the rotating shaft.   The steaming machine according to claim 1, wherein the rotating fluid supply part facing the direction opposite to the rotating direction of the rotating shaft has a rotating fluid blowing hole.   The steaming machine according to claim 1 or 2, wherein the rotating fluid supply part has rotating fluid blowing holes facing the longitudinal direction of the rotating shaft at both ends.   The steamer according to any one of claims 1 to 3, wherein a fluid supply path is formed in the rotating shaft, and fluid is supplied from the fluid supply path to the rotating fluid supply unit.   2. A fluid supply pipe is provided in the take-out lid of the agitation container, and an outlet at one end of the fluid supply pipe comes into contact with a fluid supply path formed in the rotating shaft when the take-out lid is closed. To 5. The steamer according to any one of 4 to 4.   The steamer according to any one of claims 1 to 5, further comprising a stationary fluid blowing hole on an inner peripheral surface of the stirring vessel. A steaming vessel comprising a stirring vessel having a steaming chamber therein, a rotating shaft that rotates in a state of protruding into the steaming chamber, and a stirring blade that is attached to the rotating shaft and kneads the material charged into the steaming chamber. A kneading machine,
A steamer having a stationary fluid outlet on the inner peripheral surface of the stirring vessel.

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