JP4034867B2 - Continuous liquid mixing equipment - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a continuous liquid addition and mixing apparatus for continuously producing a soboro-like noodle dough by mixing powder and liquid, for example, flour, other raw materials and water.
[0002]
[Prior art]
Among the processes for making noodles, a process for making noodle dough is an important process that affects the quality of noodles. This noodle dough forming process consists of a hydromixing process in which water and flour particles are mixed to form a uniform mixture (soboro-like dough), and a kneading process in which the soboro-like dough is kneaded. When non-uniform mixing is performed in the process, the subsequent kneading is insufficient, or aging (aging) for a long time (about 15 minutes to 1 hour) is required to homogenize this. .
[0003]
A continuous water mixer is known as a dedicated machine for the water mixing step. As shown in Japanese Patent Application Laid-Open No. 57-136925 or Japanese Patent Application Laid-Open No. 63-49238, this type of hydration mixer includes a rotating shaft extending through the casing and a plurality of shafts implanted in the rotating shaft. The stirring pin is provided, and a structure is employed in which the flour that is continuously and quantitatively supplied from the flour feeding device is hydrated while being impacted by the stirring pin.
[0004]
Further, in the continuous water mixer disclosed in JP-A-7-327577 by the same inventor as the present inventor, the rotating shaft, the cylindrical casing, and the water mixing space formed by the casing are directed to. A first inlet that is adjacent to the machine frame, among a plurality of stirring pins spirally arranged on the rotation shaft, and each stirring region formed by the rotation of the plurality of stirring pins. A water injection nozzle that sprays water in a sprayed manner toward the upstream portion of the mixing space including the stirring region formed by the stirring pin, and the plurality of stirring pins as a whole around the rotation shaft The relationship between the diameter (D) of the circle formed by the tip of the stirring pin by rotating evenly and the length dimension (L) in the axial direction of the hydration space is D ≧ L. And the direct D is configured to be 50cm or less.
[0005]
[Problems to be solved by the invention]
By the way, in the food industry, it is always necessary to consider cleanliness and hygiene, and noodle making is no exception. From this point of view, when looking at conventional hydration mixers, those disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 57-136925 or Japanese Patent Application Laid-Open No. 63-49238 are not always convenient for cleaning the inside. It was not time-consuming.
On the other hand, in the one disclosed in Japanese Patent Application Laid-Open No. 7-327577, the problem of simplicity of internal cleaning and hygiene is solved, but the dynamic balance of the rotating shaft with the stirring pin cannot be taken and mixing is performed. If the speed is increased above a certain level, vibration will occur. Therefore, in order to push this vibration, the continuous liquid adding and mixing apparatus has to be provided with a high load type bearing. Further, this continuous liquid addition and mixing apparatus has a problem that it is difficult to control the liquid addition mixing speed, that is, the residence time of the mixture.
[0006]
OBJECT OF THE INVENTION
The present invention has been made in view of the above-mentioned problems of the conventional hydration mixer, and while making the uniform solubilized dough continuously and rapidly while the overall dimensions are compact, An object of the present invention is to provide a continuous liquid addition and mixing device which can easily clean the inside with a simple structure.
Another object of the present invention is to provide a continuous liquid addition and mixing apparatus which can perform high-speed liquid addition and mixing processing and can control the liquid addition and mixing processing speed relatively easily.
[0007]
[Means for Solving the Problems]
The present invention provides a rotating shaft that is cantilevered and supported in a machine frame containing a rotary drive source, extends laterally from the machine frame, and rotates by receiving power from the rotary drive source.
A cylindrical casing having one end open, the other end closed, and an outlet opening downward at the other end, the open end of the casing facing the machine frame A casing which is detachably attached to the machine frame and forms a liquid mixture space surrounding the rotating shaft;
A powder inlet formed in the machine frame and opening toward the liquid mixture space formed by the casing;
A stirring pin provided on the rotating shaft and extending radially from the rotating shaft to the vicinity of the inner peripheral surface of the casing;
An inclined surface in which at least four stirring pins are disposed asymmetrically with respect to the axis in a plane including the axis and symmetrical with respect to a plane orthogonal to the axis, and are inclined in a spiral direction around the axis at the tip of the stirring pin And the diameter (d) of the bottom surface of the frustoconical portion at the tip of the stirring pin is p <d with respect to the pitch (p) between the stirring pins. It is a mixing device.
According to the present invention, in addition to achieving the object of the present invention, it is possible to effectively prevent the mixture from adhering to the inner wall surface of the casing. When the pitch (p) exceeds the diameter (d), the mixture tends to adhere to the inner wall surface of the casing.
[0008]
Embodiments of the present invention are as follows.
The inclined surface of the tip end portion of the stirring pin has a shape in which the bottom surface portion is chamfered so as to cut out a truncated cone portion having a tip end side and form a cylindrical surface at the most distal end portion. Such a configuration is easy to machine parts, low in production cost, robust, easy to clean and hygienic.
At least one end of the rotating shaft has a pair of scraping pins extending symmetrically from both sides of the rotating shaft and provided with intermittent scraping portions, and the scraping portions are complementary to both scraping pins. It is characterized by being formed. The pair of scraping pins are symmetrical with respect to the rotation due to the symmetrical shape, and the scraped portion is intermittent, so that the scraped raw material can escape and the scraping is performed efficiently. There is no scraping residue because the scraped portions are complementary.
[0009]
The distance between the side wall of the casing and the scraping pin is 0.3 to 8.0 mm. If this interval exceeds this, the residence time of the mixture is short and uniform continuous liquid addition mixing cannot be performed. Conversely, if the interval is smaller than this, the load on the rotating shaft increases, and the rotational drive source or casing Causes an overburdening problem.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 9 shows a part of the machine-made noodle system 1. The system 1 is attached to a flour feeder 2 that continuously and quantitatively supplies flour, for example, as flour, and an outlet of the flour feeder 2. Noodle dough that is continuously made by the kneading machine 4, and the kneading machine 4 that kneads the soboro-like dough supplied from the mixer 3 and kneads the noodle dough, etc. Then, after being discharged from the kneader 4, the conveyor 5 moves to a series of subsequent steps to make a noodle string as the final product.
[0011]
As shown in FIGS. 1 and 2, the powder feeding device 2 includes a tank 201 for storing flour, and a machine frame 202 positioned below the tank 201, and a drive unit 203 and the like are provided in the machine frame 202. Has been placed.
[0012]
The inside of the tank 201 is partitioned into an upper chamber 206 and a lower chamber 207 by an intermediate plate 205, and the chambers 206 and 207 are communicated with each other through an opening 208 formed in the intermediate plate 205. The tank 201 is provided with a shaft 210 that extends vertically through the intermediate plate 205 and the bottom plate 209, and the shaft 210 is rotationally driven around the axis line by a drive unit 203 linked to the lower end portion thereof. Two wings 212 and 213 are attached to the shaft 210 at intervals in the vertical direction, and the flour present in the upper chamber 206 is stirred by the upper wing 212, and the flour present in the lower chamber 207 is stirred by the lower wing 213. Is done.
[0013]
An outlet 215 that opens downward is formed in the bottom plate 209 of the tank 201. A screw-type discharge device 217 extending in the lateral direction is attached to the outlet 215, and the screw blades 218 of the discharge device 217 are rotationally driven by the drive unit 203, whereby the flour in the tank 201 is continuously and quantitatively discharged. It is discharged from 217a in the lateral direction. Since such a powder feeder 2 is conventionally known, further detailed description is omitted. In addition, the powder feeder which can be combined with the liquid mixer 3 described in detail below is not limited as long as it can continuously and quantitatively supply wheat flour to the water mixer 3, and thus the above-described powder feeder 2 is used. It is not limited to.
[0014]
The continuous liquid mixer 3 is attached to the powder feeder 2 so as to face the discharge port 217a of the discharge device 217. That is, the liquid mixer 3 has a casing 301 that can be attached to and detached from the powder feeding device 2 via a clamp joint with respect to a cylindrical portion 202 a that slightly protrudes from one side of the machine frame 202. That is, a joint terminal is formed at the tip of the cylindrical portion 202 a, and a joint terminal corresponding to the joint terminal is formed at the tip of the casing 301, and these joint terminals are coupled by the clamp band 300. The clamp joint having such a configuration is conventionally known, and the casing 301 can be removed by removing the clamp band 300.
[0015]
The casing 301 has a cylindrical shape with an inner diameter of 400 mm with one end side closed, and a liquid mixture space S for flour is formed by the casing 301 and the cylindrical portion 202a. And the nozzle 302 which discharges water in the shape of a spray toward the liquid addition mixing space S is installed in the cylindrical part 202a, and the water injected from this nozzle 302 is electromagnetically opened and closed by the valve V (see FIG. 2). The injection opening / closing control is performed. The on-off valve V is controlled by opening and closing the on-off valve V in synchronism with the operation of the powder feeder 2, more specifically, the start and stop of the supply of flour to the hydration mixer 3. The on-off valve V is preferably installed as close to the nozzle 302 as possible, thereby facilitating the supply of liquid, that is, water synchronized with the addition of flour. The adjustment of the liquid addition amount is performed by controlling the rotation speed of a pump (not shown) that supplies water toward the nozzle 302, and thereby the liquid addition amount of the flour is adjusted to a predetermined value. The water injection nozzle 302 may be arranged so as to inject water toward the upstream side of the first agitation pin 317a described later and located at the upstream end of the hydration mixing space S described later, or the second agitation. You may distribute in the position and direction which face the stirring area | region which the pin 317b forms.
[0016]
Here, there are 16 pins in this embodiment, and from the upstream side, the upstream scraping pin 315a, the first stirring pin 317a, the second stirring pin 317b, the third stirring pin 317c,. A pin 317j, an eleventh stirring pin 317k, a twelfth stirring pin 317l, and a downstream scraping pin 315b.
On the other hand, the casing 301 includes an outflow port 301a at the end opposite to the machine casing 202, and the outflow port 301a opens downward as shown in FIGS. In the casing 301, a rotation center shaft 303 extends laterally from the powder supply device 2 side, and the rotation center shaft 303 is located at the base end side in the machine frame 202 of the powder supply device 2, and is attached to the drive unit 203. It is linked. That is, as is clear from FIG. 1, the rotation center shaft 303 is supported in a cantilever manner in the machine casing 202 and linked to the drive unit 203. Note that reference numerals 219 a and 219 b in FIG. 1 indicate a pair of support members that support the central shaft 303.
[0017]
The free end of the central shaft 303 extends to a position close to the end wall 302b on the powder outlet 301a side of the casing 301. With reference to FIG. 3, the portion of the rotation center shaft 303 located in the casing 301 will be described. The center shaft 303 has a flange 306 at a portion adjacent to the machine casing 202, and is on the free end side than the flange 306. The small diameter shaft portion 303a is reduced in diameter.
[0018]
A pin 307 extending in the diameter direction is attached to the small diameter shaft portion 303a in the vicinity of the flange 306. On the other hand, an internal thread 308 extending in the axial direction is formed at the free end of the small-diameter shaft portion 303a, and the internal thread 308 opens at the end surface of the small-diameter shaft section 303a.
[0019]
The liquid mixer 3 has an outer cylinder 310 that is inserted into the central shaft 303, specifically, the small-diameter shaft portion 303a. The outer cylinder 310 includes a through hole 310a extending in the axial direction, and the through hole 310a has a diameter substantially the same as the outer diameter of the small diameter shaft portion 303a. The outer cylinder 310 is inserted from the distal end side of the small diameter shaft portion 303a, and a pair of non-rotating notches 311 corresponding to the pin 307 described above is formed at one end of the outer cylinder 310, that is, the insertion-side distal end ( In FIG. 3, only the cutout on one side is shown for reasons of drawing). On the other hand, at the other end of the outer cylinder 310, a seat 312 is formed at the other end opening of the through hole 310a.
[0020]
The outer cylinder 311 is attached to the small-diameter shaft portion 303a by first inserting the outer cylinder 310 into the small-diameter shaft 303a, engaging the notch 311 and the pin 307, and then fitting the washer 314 into the seat 312 from the outside. This is done by screwing the screw 318 into the female screw 308.
[0021]
As shown in the front view and the side view of FIG. 4, the stirring pin 317 has a cylindrical embedded portion 502 having a diameter of 19 mm and a length of 20 mm at one end, and a middle portion having a diameter of 16 mm and a length of 153 mm. The other end is chamfered so as to form a cylindrical surface 510 having a diameter of 24 mm and a height of 2 mm at the most distal end of the truncated cone-shaped portion 506 having a bottom surface on the tip side. An extruded portion 512 is formed. The embedded portion 502 is formed with a spiral groove on its cylindrical outer surface and screwed into the outer cylinder 310, or is welded to the outer cylinder 310 without forming a spiral groove.
As shown in the front view and the side view of FIG. 5, the scraping pin 315 has an embedded portion 520 that is the same as the stirring pin 317 at one end, and the other portion has a cross section of 17 mm at the bottom, 13 mm at the top, and 15 mm in height. A trapezoidal scraping portion 522 is formed. A notch 319 having a depth of about 1 mm is intermittently provided on the bottom surface 316 corresponding to the bottom of the cross section of the scraping pin 315 at an interval equal to the width thereof. The embedded portion 520 is formed with a spiral groove on the outer surface of the cylinder and screwed into the outer cylinder 310, or is welded to the outer cylinder 310 without forming a spiral groove.
[0022]
The scraping pin 315 and the stirring pin 317 are implanted in the outer cylinder 310 as shown in FIGS. That is, the arrangement order of the pins 315 and 317 is as follows. From the upstream side to the downstream side of the raw material flow, the upstream scraping pin 315a, the first stirring pin 317a, the second stirring pin 317b, the third stirring pin 317c,. The tenth stirring pin 317j, the eleventh stirring pin 317k, the twelfth stirring pin 317l, and the downstream scraping pin 315b.
The upstream-side scraping pin 315a and the downstream-side scraping pin 315b extend in the opposite directions from the same position on the axis, respectively, and the bottom surface in the cross section is inclined by 15 ° with respect to the side surface 540 of the casing 301. The scraping blade portion 542 to be formed is implanted in the outer cylinder 310 so as to be spaced from the side surface 540 by 0.8 mm. The notch portions 319 of the bottom surface 316 of the pair of scraping pins 315 extending in the opposite directions from the same position on the axis are complementary to each other (FIG. 8), that is, the notch portion 319 of one scraping pin 315a. A portion of the other scraping pin 315a corresponding to is a scraping portion 319.
[0023]
The stirring pin 317 is a plane including an axis in each group of the first stirring pin 317a to the fourth stirring pin 317d, the fifth stirring pin 317e to the eighth stirring pin 317h, and the ninth stirring pin 317i to the twelfth stirring pin 317l. Are arranged asymmetrically with respect to the axis and symmetrically with respect to a plane orthogonal to the axis, and the extruded portion 512 is implanted with an end inclined at 60 ° with respect to the side surface 540 of the casing 301.
The pitch (interval) between the scraping pin 315 and the stirring pin 317 is P1 = 17 mm from the upstream scraping pin 315a to the eighth stirring pin 317h, and P1 = 23mm from the ninth stirring pin 317i to the downstream scraping pin 315b. It is.
[0024]
In the above configuration, the rotation center shaft 303, that is, the outer cylinder 310 is rotated at a constant speed of 500 to 1000 revolutions per minute (rpm). When rotating at a higher speed than this, the amount of generated air accompanying the rotation of the stirring pin 317 increases, and the mixture of water and flour tends to adhere to the inner wall surface of the casing 301. On the contrary, if it is made lower than this, it becomes difficult to obtain a uniform liquid mixture. The flour supplied continuously and quantitatively from the powder feeder 2 and the water sprayed from the nozzle 302 are mixed while being atomized by the collision with the stirring pin 317, and the mixture of water and flour collides with the stirring pin 317. While being repeated, it is quickly carried to the downstream side by the push-out action of the push-out portion 512 and flows out from the outlet 301a. On the other hand, the scraping pins 315 scrape off the raw material adhering to the side surface 540 of the casing 301, and new raw materials are always added and mixed in the casing 301.
[0025]
When cleaning the liquid mixer 3, for example, at the start or end of work or when switching products, the casing 301 is first removed by removing the clamp band 300, and the outer cylinder 310 and the twelve stirring pins 317 are attached. It is performed with all of them exposed to the outside. In some cases, the outer cylinder 310 may be removed from the central shaft 303 and the outer cylinder 310 including the stirring pin 317 may be washed with water. When cleaning the mixer 3, the center shaft 303 is cantilevered, and the casing 301 and the outer cylinder 310 (including the stirring pin 317) are compact and lightweight. The outer cylinder 310 can be attached and detached. Moreover, even if it exists in the casing 301, since it opens large at one end side and the diameter and length dimension are compact, an internal cleaning is easy.
[0026]
【The invention's effect】
According to the present invention, while the overall dimensions are compact, a uniform and sober-like dough can be continuously and rapidly produced, and the inside can be easily cleaned with a simple structure. . According to the present invention, it is possible to perform high-speed liquid mixture processing and to control the liquid mixture processing speed relatively easily.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a continuous powder feeding apparatus with a liquid mixer according to an embodiment of the present invention.
FIG. 2 is a front view of the continuous powder feeding apparatus of FIG.
FIG. 3 is an exploded view showing a mounting structure of a rotating shaft, an outer cylinder, and a stirring pin according to an embodiment.
FIG. 4 is a front view and a side view of a stirring pin.
FIG. 5 is a front view and a side view of a scraping pin.
FIG. 6 is a front view of an outer cylinder to which a stirring pin and a scraping pin are attached.
FIG. 7 is a side view of an outer cylinder to which a stirring pin and a scraping pin are attached.
FIG. 8 is a side view of an outer cylinder and a scraping pin attached to the outer cylinder.
FIG. 9 is a partial layout diagram of a mechanical noodle system incorporating the continuous powder feeding device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS S Liquid mixture space 2 Powder supply apparatus 3 Continuous liquid mixer 202 Machine frame 203 Drive unit 217 Screw type discharge device 300 Clamp band 301 Casing 301a Outlet 302 formed in the casing 302 Water injection nozzle 303 Rotation center shaft 310 Outer cylinder 315 Scraping pin 317 Stirring pin 319 Notch 504 Stirring unit 506 Frustum trapezoidal part 512 Extruding part 522 Scraping part

Claims (4)

A rotating shaft that is cantilevered in a machine frame that accommodates a rotation drive source, extends laterally from the machine frame, and rotates by receiving power from the rotation drive source;
A cylindrical casing having one end open, the other end closed, and an outlet opening downward at the other end, the open end of the casing facing the machine frame A casing which is detachably attached to the machine frame and forms a liquid mixture space surrounding the rotating shaft;
A powder inlet formed in the machine frame and opening toward the liquid mixture space formed by the casing;
A stirring pin provided on the rotating shaft and extending radially from the rotating shaft to the vicinity of the inner peripheral surface of the casing;
An inclined surface in which at least four stirring pins are disposed asymmetrically with respect to the axis in a plane including the axis and symmetrical with respect to a plane orthogonal to the axis, and are inclined in a spiral direction around the axis at the tip of the stirring pin And the diameter (d) of the bottom surface of the frustoconical portion at the tip of the stirring pin is p <d with respect to the pitch (p) between the stirring pins. Mixing equipment.   The inclined surface of the tip portion of the stirring pin has a shape that is chamfered so as to form a cylindrical surface at the most distal end portion by cutting out a truncated cone portion having a bottom surface portion on the tip side. The continuous liquid addition mixing apparatus described in 1.   At least one end portion of the rotating shaft has a pair of scraping pins extending symmetrically from both sides of the rotating shaft and provided with intermittent scraping portions, and the scraping portions are complementary to both the scraping pins. The continuous liquid addition mixing device according to claim 1, wherein the continuous addition mixing device is formed.   The continuous liquid mixing device according to claim 3, wherein a distance between a side wall of the casing and the scraping pin is 0.3 to 8.0 mm.

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