JP2001314319A - Cooked rice loosening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooked rice loosening device capable of sufficiently loosening cooked rice released from a rice cooker on a cooked rice carrying conveyor by a hoisting, lowering and inverting mechanism in order to extend the cooked rice in such a manner as to form a layer having the same thickness. SOLUTION: In the cooked rice loosening device, the cooked rice R boiled completely by the rice cooker 4 is lifted and inverted together with the rice cooker 4 up to a regular height by the hoisting, lowering and inverting mechanism 3 so as to be released from the rice cooker 4, transferred to the side of the carry-in end part of the cooked rice carrying conveyor 7, and loosened by loosening impellers 8 and 9 during conveyance by the conveyor 7. The cooked rice loosening device is provided with a hopper 5 for receiving the cooked rice R released from the rice cooker 4 by the mechanism 3 and a quantitative loosening delivery machine 6, mounted on the outlet side of the hopper 5, for quantitatively delivering the cooked rice R released from hopper 5 to the side of the carry-in end part of the conveyor 7 while loosening the cooked rice R.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for unraveling cooked rice cooked by an automatic rice cooker or the like prior to cooling to a predetermined temperature.

[0002]

2. Description of the Related Art In a conventional rice disintegrating apparatus, cooked rice cooked in a kettle is lifted and inverted to a certain height by a lifting / reversing mechanism, thereby releasing the cooked rice in the kettle and carrying the cooked rice conveyer as it is. The rice is dropped and transferred onto the end, and the cooked rice is loosened with a rotating loosening impeller while being conveyed by the conveyor.

[0003]

In the conventional loosening device, the cooked rice discharged from the kettle by the elevating and reversing mechanism is dropped on the cooked rice conveyor as it is, and the cooked rice dropped on the conveyor is formed into a mountain shape on the conveyor. Because of the raised state, the loosening action of the loosening impeller on the conveyor cannot be effectively exerted on cooked rice, and loosening unevenness often occurs. In particular, in the case of cooked cooked rice in which ingredients are mixed with rice and cooked at the same time, when cooked, since ingredients lighter than rice are gathered at the top of the kettle, drop this on the conveyor and transfer it Even when loosened with a loosening impeller, the cooked rice and the ingredients are not sufficiently mixed, and many cooked rice lumps and ingredients are produced. If the cooked rice is transferred to the next cooling step without being sufficiently unraveled, the whole cooked rice is not uniformly cooled, resulting in uneven temperature.

[0004] In view of the above problems, an object of the present invention is to provide a cooked rice disintegrating apparatus which can sufficiently disintegrate cooked rice discharged from a kettle onto a cooked rice conveyer by a reversing mechanism.

[0005]

The invention according to claim 1 is
The cooked rice R cooked in the kettle 4 is lifted up to a certain height by the elevating and reversing mechanism 3 and inverted, thereby releasing the cooked rice R from the kettle 4 and transferring the cooked rice R to the loading end side of the cooked rice conveyor 7. In the apparatus for unraveling cooked rice R with the unraveling impeller during the transportation by the conveyor 7, there is provided a cooked rice receiving hopper 5 for receiving the cooked rice discharged from the kettle 4 by the lifting / lowering reversing mechanism 3 in an impact. At the exit side of the rice cooker 5, there is provided a quantitative loosening sending device 6 for uniformly feeding the cooked rice R discharged from the hopper 5 to the carry-in end side of the cooked rice conveying conveyor 7.

According to a second aspect of the present invention, there is provided the rice loosening apparatus according to the first aspect, wherein the fixed-rate loosening dispenser 6 includes pin-shaped blades 20b and 21b attached to rotary support shafts 20a and 21a extending in a direction crossing the rice transport conveyor 7. A pair of radially protruding impellers 20, 21 are arranged such that the respective pin-shaped blades 20b, 21b of the both impellers 20, 21 are interposed between the pin-shaped blades of each other. It is characterized in that the cars 20, 21 are rotated in opposite directions.

A third aspect of the present invention is the rice disintegrating apparatus according to the first or second aspect, wherein the loosening impeller on the rice transport conveyor 7 has a plurality of rotating shafts 38 extending in a direction crossing the rice transport conveyor 7. The plate-like blades 39 are arranged in a row in the axial direction of the rotation support shaft 38 in a state where the plate surface of each blade 39 is inclined at a certain angle α with respect to the axis O of the rotation support shaft 38 so as to form a plurality of rows in the circumferential direction. The plurality of plate-like blades 39 in each row arranged in the axial direction are inclined in the same direction, and the blades 39 in the rows adjacent to each other in the circumferential direction are inclined reversely to each other. It is characterized by the following.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing a cooked rice disintegrating apparatus and a cooked rice cooling apparatus according to the present invention, FIG. 2 is a plan view of these apparatuses, and FIG. In these figures, 1 is a cooked rice disintegrating device according to the present invention, and 2 is a well-known cooked rice cooling device. Numeral 3 denotes a lifting and reversing mechanism for raising and reversing the pot 4 to a certain height in the rice disintegrating apparatus 1, reference numeral 5 denotes a funnel-shaped rice receiving hopper for receiving the rice R discharged from the pot 4 by the lifting and reversing mechanism 3, and 6; This is a fixed-rate loosening sending machine that discharges fixedly the cooked rice R discharged from the hopper 5 to the carry-in end side of the cooked rice transport conveyor 7. Reference numerals 8 and 9 denote loosening impellers provided on the rice-carrying conveyor 7.

As shown in FIGS. 1 and 2, the lifting / reversing mechanism 3 includes a rotating shaft 12 mounted on an upper portion and a lower portion of a machine frame 11.
a and 12b at both ends.
a, 13b, 13b are attached, and chains 14, 14 are attached to these two sprockets 13a, 13a, 13b, 13b.
And a pair of forks 15, 15 on both sides are fixed to both chains 14, 14 via the bracket 10, and the rotating shaft 1
2b is rotated forward and reverse by a motor (not shown) to move the chains 14, 14 in a certain section (the shuttle receiving position P1).
And between the rice dumping position P2) and reciprocate. At the shuttle receiving position P1, both end flanges 4a, 4a of the shuttle 4 are sandwiched between forks 15, 15, and the forks 15, 15 are rotated by the forward rotation of the motor. Ascending / descending route a from the receiving position P1
Is moved to the cooked rice discharging position P2 at the end of the reversing path b, and the cooked rice R in the pot 4 is discharged at the cooked rice discharging position P2.

The pot 4 constitutes a part of an automatic rice cooker (not shown). As shown schematically in FIGS. 1 and 2, a pot-shaped pot main body 4a and an opening surface of the pot main body 4a are provided. Along with flanges 4a, 4a protruding from both ends thereof. When the cooked rice is cooked by the cooker, the cooker 4 containing the cooked rice is removed from the cooker main body, and the cooker 4 is moved to a standby position Po by a carry-in conveyor (for example, a roller conveyor) 16 as shown in FIG. 2, for example. The conveyor 1 is carried in at this standby position Po.
After the cylinder 7 has been lifted above the carry-in conveyor 16 by the cylinder 18, the shuttle 4 is sent to the shuttle receiving position P <b> 1 by the feed conveyor 17. The kettle 4 sent to the kettle receiving position P1 is transported by the elevating and reversing mechanism 3 to the cooked rice discharging position P2, and after the rice R in the kettle 4 is discharged into the hopper 5, the returned kettle 4 is returned to the cooker receiving position P1. After being returned from the position P1 to the standby position Po by the infeed conveyor 17, it is unloaded to a predetermined location by the unloading conveyor (for example, a roller conveyor) 19.

The rice receiving hopper 5 is provided with
The rice cooker 4 is installed at a position adjacent to and below the cooked rice discharge position P2 where the pot 4 is inverted, and is shown in FIGS. 3 and 4B.
As can be seen from the figure, the front side plate 5a inclined forward, the rear side plate 5b inclined backward, and the left and right end plates 5c, 5c are formed in a funnel shape.

A fixed-rate unraveling machine 6 provided at the lower end exit side of the hopper 5 is located above the carry-in end of the rice-carrying conveyor 7 and has a rotary support shaft 20a extending in a direction crossing the rice-carrying conveyor 7. 21a is a pin-shaped blade 20
b, 21b radially projecting, a pair of impellers 20,
21 are connected to the respective pin-shaped blades 20b, 2 of the two impellers 20, 21.
1b are interposed between the pin-shaped blades of each other,
That is, the pin-shaped blade 20b of one impeller 20 enters between the pin-shaped blades 21b, 21b of the other impeller 21, and the pin-shaped blade 21b of the other impeller 21 is connected to the other impeller 2
One of the rotary shafts 21a is disposed so as to enter between the pin-like blades 20b.
And by connecting both rotating shafts 20a, 21a by gears 23, 24, the two impellers 2
Numerals 0 and 21 are driven to rotate in opposite directions so as to send the cooked rice R discharged from the hopper 5 onto the cooked rice conveyor 7 as shown in FIG.

As can be seen from FIGS. 3 and 4A, the fixed-rate unraveling machine 6 includes front and rear wall plates 25, 26.
The front and rear wall plates 25, 26 and one of the side wall plates 27 are connected to the front and rear side plates 5a, 5b and one end plate 5c of the rice receiving hopper 5, respectively. The side wall plate 28 of the hinge 3
At 0, one end is pivotally connected and can be opened and closed.
Rotation support shafts 20a, 21a of both impellers 20, 21 are mounted on left and right side wall plates 27, 28.

As shown in FIG. 3, the rice-carrying conveyor 7 has an endless conveyor belt 33 such as a mesh belt which can be passed between a pair of front and rear pulleys 31 and 32. As shown in FIG. 5A, a number of support rollers 40 are disposed along the lower surface of the upper belt portion 33a, and the pulley 31 on the front side is
(See FIG. 2), and the upper belt portion 33a is
It is configured to run in the direction of the arrow. In FIG. 3, reference numeral 34 denotes a scraper which slides on the belt 33 at the discharge end of the rice transport conveyor 7 to drop the rice R onto the carry-in end of the rice transport conveyor 35 of the rice cooler 2 (see FIG. 1).

Among the loosening impellers 8 and 9 provided on the rice-carrying conveyor 7, the impeller 8 is a first impeller disposed near the carry-in end of the conveyor 7, and the impeller 9 is a first impeller. The second impeller is located on the front side of the one impeller 8 in the conveyor conveyance direction, and two second impellers are disposed in front and behind. The first impeller 8
As shown in FIGS. 2 and 3, a pin-shaped blade 37 is radially protruded from a rotating support shaft 36 extending in a direction crossing the rice-carrying conveyor 7. It is driven by a motor 38 in the direction of the arrow in FIG.

Each of the second impellers 9 is formed by projecting plate-like blades 39 radially on a rotation support shaft 38 extending in a direction crossing the rice-carrying conveyor 7. The shaft is mounted on the 29 side, and is rotationally driven in the direction of the arrow in FIG. The blade 39 of the second impeller 9
As can be seen from FIGS. 5A to 5D, the width w1 of the base end is about the diameter of the rotating shaft 38, and the width w2 of the tip is wider than that. Is formed. In the second impeller 9, a large number of such blade-shaped blades 39 are inclined at a predetermined angle α (for example, about 15 °) with respect to the axis O of the rotating shaft 38. In the state, 1 at regular intervals in the axial direction of the rotation support shaft 38.
A plurality of (for example, five) blades 39 in each row arranged in the axial direction of the rotary support shaft 38 are arranged in a row so as to project in the circumferential direction so as to form four rows at 90 ° intervals. The blades 39 in the rows adjacent to each other in the circumferential direction are inclined in opposite directions.

FIG. 5D is a developed view showing the trajectory when the second impeller 9 rotates on the traveling rice transport conveyor 7 during traveling. As can be seen from FIG.
The number of blades 39 arranged so as to form four rows in the circumferential direction in a single row in the axial direction of FIG. 8 is such that the five blades 39 in the first row shown in FIG. The five blades 39 in the second row shown in FIG.
Are inclined rightward with respect to the conveyor conveyance direction H.
The fifth row of blades 39 in the third row is inclined leftward as in the first row, and the fifth row of blades 39 in the fourth row is facing leftward as in the second row. It is inclined. 5A is a sectional view taken along line XX of FIG. 3, FIG. 5B is a transverse sectional view of the second impeller 9, and FIG. 5C is a partial perspective view of the second impeller 9. It is.

The operation of the rice disintegrating apparatus 1 having the above-described configuration will be described, for example, in the case of cooked cooked rice in which ingredients are mixed with rice and cooked simultaneously. First, when the cooked rice R is cooked by the automatic rice cooker, the pot 4 containing the cooked rice R is removed from the rice cooker main body, and the pot 4 is removed.
Is sent from the standby position Po to the shuttle receiving position P1 as shown in FIG. In this cooked cooked rice R, since the ingredients are lighter than the rice, most of the ingredients are gathered on the surface layer of the cooked rice.

At the shuttle receiving position P 1, the shuttle 4 has its both end flanges 4 a, 4 a connected to the fork 1
5 and 15, the lifting / lowering reversing mechanism 3
As a result, the rice R in the pot 4 is discharged to the rice receiving hopper 5 at the rice discharge position P2.

The large chunk of cooked rice R discharged from the cooker 4 to the cooked rice receiving hopper 5 at the cooked rice discharge position P2 is, as shown in FIG. 3, received by the front side plate 5a in the hopper 5 with impact. The cooked rice R is discharged to the lower side of the hopper 5 while sliding down the front side plate 5a while losing the shape of the lump, and is sent between the pair of impellers 20 and 21 of the fixed-rate unraveling sending machine 6. A pair of impellers 20, 2
While being disentangled by 1, the fixed amount is sent out to the carry-in end side of the rice-carrying conveyor 7 below. As a result, the cooked cooked rice R is transferred to the cooked rice conveyor 7 at a stage before the transfer.
The rice and ingredients will be stirred.

As described above, a large chunk of cooked rice R
Is shockedly received in the hopper 5 and is discharged from the hopper 5 while losing the shape of the lump, and is then loosened by the constant-rate loosening sending device 6 to reach the loading end side of the rice-carrying conveyor 7. Since the rice rice R is sent out and transferred onto the rice rice conveyor 7, the rice rice R is not formed into a large lump that has been discharged from the kettle 4 as in the conventional apparatus, and as shown in FIG. Although it is in the (uneven) state, it is conveyed in a series of layers on the conveyor belt 33 of the rice-carrying conveyor 7 from the carry-in end to the carry-out end.

Thus, while the cooked rice R is being conveyed by the cooked rice conveyor 7, it is subjected to the loosening action of the first loosening impeller 8 and two front and rear second impellers 9, as shown in FIG. As shown, it is extended to a layered body Ro having a uniform thickness and being thin and can be sent to the cooked rice cooling device 2 from the discharge end of the conveyor 7.

In this case, the first impeller 8 is
Each of the pin-shaped blades 37 is formed on the conveyor belt 33 of the rice-carrying conveyor 7 by rotating the rotation support shaft 36 as shown in FIG. The rice rice R, which is uneven in the longitudinal direction of the conveyor, is loosened while scraping it off in the longitudinal direction of the conveyor,
The unevenness of the cooked rice R is leveled.

Further, by the loosening action of the second impeller 9, the cooked rice R, which has an irregular shape particularly in the width direction of the conveyor, is flattened and the whole is smoothed. The loosening action of the second impeller 9 will be described with reference to FIGS. 3 and 5D. With the rotation of the rotation support shaft 38, the first row of blades 39 shown in FIG. When the group of blades 39 inclined leftward with respect to the conveyor conveyance direction H scrapes the rice R on the conveyor belt 33, the leftwardly inclined blades 39 scrape off the rice (rice) with the left side. Show 2
When the row of blades 39, that is, the blades 39 that are inclined rightward with respect to the conveyor conveyance direction H, scrape the rice R, the rightwardly inclined blades 39 scrape the shari to the right, and in FIG. In the third row of blades 39 shown in the drawing, the shuri is scraped to the left by the left-sloping blades 39, and in the fourth row of blades 39 shown in the same figure, the shari is scraped to the left by the right-sloping blades 39. . Thus, the rice rice R on the conveyor belt 33 is flattened mainly in the width direction of the conveyor of the rice R while the rice rice R is alternately scraped off in the left and right directions with respect to the conveyor conveyance direction. Since the second impeller 9 is appropriately provided before and after in the conveyor conveyance direction, the above-described loosening action can be sufficiently performed.

By the loosening action of the first impeller 8 and the loosening action of the second impeller 9, the cooked rice R being conveyed by the cooked rice conveyer 7 has an overall thickness as shown in FIG. And a thin and permeable layered body Ro. In addition, in the case of cooked cooked rice R, the ingredients are thoroughly mixed and stirred with the shari and are uniformly dispersed in the shari.

As shown schematically in FIGS. 1 and 2, the cooked rice cooling device 2 has a cooked rice transfer conveyor 35 provided in a tunnel-shaped cooling cylinder 43, and a cooling air supply duct 44 having an outlet formed at a ceiling portion of the cooling cylinder 43. And open the rice conveyor 3
5 is provided with an unraveling impeller 45. When the cooked rice R carried out from the cooked rice conveyor 7 of the cooked rice unraveling device 1 is transferred by a scraper onto the cooked rice transfer conveyor 35 in the cooling cylinder 43, The cooked rice R on the conveyor 35
It is loosened again by the loosening impeller 45 and transported in the cooling cylinder 43, and is cooled to a predetermined cooling temperature by the cool air blown from the outlet of the cool air supply duct 44 during the transfer.

The cooked rice R sufficiently unraveled by the cooked rice unraveling device 1 is carried into the cooked rice cooling device 2 and passes through the cooling cylinder 43 of the cooked rice cooling device 2 so that the cooked rice R is brought to a predetermined temperature. It is cooled uniformly and no uneven temperature occurs. In FIGS. 1 and 2, 4
Reference numeral 6 denotes a wind collection chamber provided below the cooked rice transfer conveyor 35, which is connected to an exhaust fan 48 through an exhaust duct 47. Therefore, the air that has passed through the cooked rice R on the conveyor 35 is collected into the air collecting chamber 46 by the suction force of the exhaust fan 48 and is discharged from the exhaust duct 47 to the outside.

[0028]

According to the first aspect of the present invention, cooked rice discharged from the kettle by the elevating and reversing mechanism is not dropped directly on the cooked rice conveying conveyor as in the conventional apparatus, but is cooked by the cooked rice receiving hopper. After being received once, it is quantitatively sent out to the loading end side of the rice transport conveyor while being loosened by the quantitative release machine, so the cooked rice transferred and transferred onto the rice transport conveyor does not become large chunks, but is uneven Is formed in a series of layers, and is transported on the rice-carrying conveyor from the carry-in end to the carry-out end side, and is loosened by the loosening impeller during the transfer by the conveyor. It is stretched in a thin layer. Therefore, by sending such a thin layer of cooked rice to the subsequent cooling device, the cooked rice is cooled uniformly as a whole and does not have uneven temperature. Particularly, in the case of cooked cooked rice in which rice and ingredients are cooked at the same time, the rice and ingredients can be sufficiently mixed and stirred, so that it is very effective.

According to a second aspect of the present invention, the fixed-rate loosening dispenser comprises a pair of impellers having pin-shaped blades radially protruding from a rotating shaft extending in a direction crossing the rice-carrying conveyor. Are arranged so that the pin-shaped blades of both impellers are interposed between the pin-shaped blades of each other, and the two impellers are rotated in opposite directions to each other. A large amount of cooked rice discharged downward can be effectively dispensed to the loading end side of the cooked rice transport conveyor below, while being effectively loosened in a finely crushed state.

According to the third aspect of the present invention, the loosening impeller on the rice transport conveyor comprises a plurality of plate-like blades mounted on a rotating shaft extending in a direction transverse to the rice transport conveyor. Are arranged in a row in the axial direction of the rotary support shaft so as to form a plurality of rows in the circumferential direction in a state where the plate surfaces are inclined at a fixed angle with respect to the axis of the rotary support shaft, and are arranged in the axial direction. The plurality of plate-shaped blades in each row are inclined in the same direction, and the blades in the rows adjacent in the circumferential direction are inclined in the opposite direction to each other. , The rice on the rice transporting conveyor is effectively loosened while alternately scraping the rice in the left and right directions with respect to the conveyor transporting direction, so that the unevenness of the rice is evenly leveled and the thickness is uniform. It can be stretched into a thin, breathable layer.

[Brief description of the drawings]

FIG. 1 is a side view showing a cooked rice loosening device and a cooked rice cooling device according to the present invention.

FIG. 2 is a plan view of the cooked rice loosening device and the cooked rice cooling device.

FIG. 3 is an enlarged vertical cross-sectional view of the cooked rice unraveling device.

FIG. 4A is a side view showing a part of the cooked rice unraveling apparatus, and FIG. 4B is a plan view thereof.

5 (A) shows a second impeller, and FIG.
-X-ray enlarged sectional view, (B) is a transverse sectional view showing the second impeller, (C) is a partial perspective view showing the second impeller, (D).
FIG. 4 is a development view showing a trajectory when the second impeller rotates on the traveling rice-carrying conveyor while traveling.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 cooked rice unraveling device 2 cooked rice cooling device 3 elevating and reversing mechanism 4 rice cooker 5 cooked rice receiving hopper 6 fixed quantity unraveling machine 7 cooked rice conveying conveyor 8 first impeller 9 second impeller 20, 21 impeller 37 First impeller pin shape Blade 39 Plate-shaped blade of second impeller

Claims (3)

[Claims] The cooked rice cooked in the kettle is lifted up to a certain height by a raising / lowering reversing mechanism and inverted, whereby the cooked rice is released from the kettle and transferred to the loading end side of the cooked rice conveyor. In a cooked rice disintegrating device in which the cooked rice is disintegrated by a disintegrating impeller during transportation by a conveyor, a cooked rice receiving hopper is provided for receiving the cooked rice discharged from the kettle by a vertically reversing mechanism. A rice disintegrating device provided with a quantitative disintegration sending device that dispenses quantitatively the rice discharged from the hopper to the loading end side of the rice-conveying conveyor. 2. A fixed-rate loosening dispenser includes a pair of impellers each having a pin-shaped blade radially protruding from a rotating support shaft extending in a direction crossing a rice-carrying conveyor, and each of the pin-shaped blades of both impellers. 2. The rice disintegrating apparatus according to claim 1, wherein the two impellers are disposed so as to be interposed between the pin-shaped blades of the other party, and the two impellers are rotated in opposite directions. 3. An unraveling impeller on a rice-carrying conveyor has a plurality of plate-like blades on a rotating shaft extending in a direction transverse to the rice-carrying conveyor, and the plate surface of each blade is fixed to the axis of the rotating shaft. A plurality of plate-like blades arranged in the axial direction are arranged in a line in the axial direction of the rotation support shaft so as to form a plurality of rows in the circumferential direction. The rice disintegrating device according to claim 1 or 2, wherein the blades are inclined and the blades in rows adjacent to each other in the circumferential direction are inclined in opposite directions.