JP2003334006A - Cooked-rice feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooked-rice feeder where the weight of cooked rice to be fed can be set with high precision. <P>SOLUTION: The cooked-rice feeder comprises a main measurement part 16 arranged below a main feeding part 5 where cooked rice is fed downward while being subjected to compression molding, and cutting/measuring cooked rice (a) coming down from a cooked-rice feeding path to obtain less amount of cooked rice a<SB>1</SB>than a preset amount, a measurement part 19 measuring the regular amount of cooked rice a<SB>1</SB>received from the main measurement part 16, and a supplementary measurement part 20 supplementarily putting cooked rice a<SB>3</SB>equivalent to the difference of the weight between the cooked rice set value and the regular weight on the regular cooked rice a<SB>1</SB>after cut/ measurement. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooked rice supply device for supplying a fixed amount of cooked rice to produce bento, rice balls and the like.

[0002]

2. Description of the Related Art A conventional constant-weight cooked rice feeding device feeds cooked rice downward while gradually compressing it by a feed roller and a compression roller that are vertically opposed to each other. Then, two sheets of the main weighing unit provided in the lower portion in the supply direction are cut by a pair of shutters to obtain a fixed amount of cooked rice smaller than the set amount.

A shortage of cooked rice found by weighing the above-mentioned fixed amount of cooked rice in the measuring unit in the next step is obtained in the auxiliary measuring unit in the next step. Then, a shortage of cooked rice is supplied onto the fixed quantity cooked rice on the cooked rice conveyer conveyor to obtain a set amount of cooked rice.

[0004]

However, in the above-mentioned conventional cooked rice constant amount supply device, the main weighing section cuts the cooked rice by simultaneously opening and closing the two shutters in the left-right direction. . With such a cut,
The cut surfaces become uneven, the quality is degraded, and the structure is complicated and large. Further, since the two cutters are moved simultaneously and in opposite directions, the drive mechanism is complicated.

In addition, since the small amount of cooked rice which is insufficient is cut and supplied also in the auxiliary weighing unit, when both are movable cutters, an operation error of both movable cutters is likely to occur, and a constant amount of constant weight is insufficient. It ’s difficult to get cooked rice,
Variation easily occurs. Therefore, because of the small amount of cooked rice originally,
A slight difference makes a big difference as a whole.

[0006]

[PROBLEMS] The present invention has been made in view of the above problems of the above-described prior art, and enables the main weighing section and the auxiliary weighing section to cut cooked rice at predetermined positions accurately and without unevenness. To provide a cooked rice supply device capable of consistently supplying a fixed quantity of cooked rice by obtaining a uniform quantity of fixed quantity of cooked rice and additional quantity of cooked rice by configuring the weighing unit to accurately measure the shortage of cooked rice. With the goal.

[0007]

In order to achieve the above-mentioned object, in claim 1, the cooked rice which is arranged below the main feeding section for feeding the cooked rice downward while compression-molding it is cut off from the cooked rice.・ A main weighing unit that obtains a fixed amount of cooked rice less than the set value of cooked rice, a measuring unit that measures the fixed amount of cooked rice received from the main measuring unit, a set value of cooked rice, and a fixed amount of cooked rice measured by the measuring unit Is a cooked rice feeding device comprising an auxiliary weighing unit for replenishing the cooked rice having a weight difference of 1 to a fixed amount of cooked rice on a conveyor, the main weighing unit being opposed to the center of the lower part of the pair of left and right lowermost feed rollers. The opening plate provided with a through hole is horizontally fixed and arranged, and the rice that hangs down from the through hole is slid with the lower surface of this opening plate while being cut with a cutter and pusher that is cut with the blade tip above the tip. Quantitative cooked rice Characterized in that with turbocharger over composed by arranging each reciprocally moving the rice feeding table to send to the next weighing unit.

According to the second aspect of the present invention, the cooked rice, which is arranged below the main feeding section for feeding the cooked rice downward while being compression-molded, cuts and measures the cooked rice hanging from the cooked rice supply path to obtain a fixed quantity cooked rice smaller than the set value of cooked rice. The main weighing unit, the weighing unit that measures the fixed amount of cooked rice received from the main weighing unit, the cooked rice having the weight difference between the cooked rice set value and the fixed amount of cooked rice measured by the measuring unit, and A cooked rice supply apparatus comprising: an auxiliary weighing unit for replenishing the cooked rice, wherein the weighing unit is disposed on the cooked rice placing table, a weighing device supporting the cooked rice placing table, and the cooked rice placing table, and along the rectangular locus. It is characterized in that it is provided with a stopper that is controlled to move and stops the fixed quantity cooked rice sent out from the main weighing unit at a predetermined position and pushes the fixed quantity cooked rice onto the conveyor.

According to a third aspect of the present invention, the cooked rice, which is arranged below the main feeding section that feeds the cooked rice downward while being compression-molded, cuts and measures the cooked rice hanging from the cooked rice supply path to obtain a fixed quantity cooked rice smaller than the cooked rice set value. The main weighing unit, the weighing unit that measures the fixed amount of cooked rice received from the main weighing unit, the cooked rice having the weight difference between the cooked rice set value and the fixed amount of cooked rice measured by the measuring unit, and And a supplementary weighing unit for supplementing the cooked rice, wherein the supplementary measuring unit includes a cutter arranged in a cooked rice supply path for supplying cooked rice on the fixed quantity cooked rice transferred from the main measuring unit. The cutter,
A fixed blade arranged so as to face each other in the cooked rice supply path and a swingably pivotally supported so as to come into contact with and away from the fixed blade, and cut the cooked rice by turning to the fixed blade side and at the same time the cooked rice supply path It is characterized by being formed by a substantially arcuate movable blade that cuts off.

[0010]

The cooked rice in the hopper is compressed and formed to a predetermined thickness by the main supply portion thereof and is conveyed downward, and hangs down from the through hole of the opening plate. When the tip of the drooped cooked rice comes into contact with the cooked rice feed table of the main weighing section, the cooked rice feed table and the cutter / pusher move forward. At this time, the cutter and pusher slid the lower surface of the opening plate to cut the drooped cooked rice at the lower surface of the through hole with the blade edge, and obtain a fixed quantity of cooked rice slightly smaller than the preset amount. Then, the cutter / pusher further advances and transfers the fixed amount of cooked rice onto the cooked rice placing table of the measuring section in the next step.

The above fixed amount of cooked rice is weighed together with the cooked rice placing table by a measuring device. Then, after the weighing, in the auxiliary weighing unit of the next step, the accurate remaining amount of the insufficient amount of cooked rice found by the weighing by the weighing unit is additionally supplied.

When the weighing unit is a weighing unit with a conveyor, the cooked rice feed stand is stopped from the beginning, and only the cutter / pusher moves forward to transfer the fixed quantity cooked rice onto the conveyor. The fixed amount of cooked rice is weighed by a weighing machine together with a conveyor and the like, and then transferred onto a conveyer conveyor arranged below the auxiliary weighing unit.

The cooked rice supplied from the bypass conveyor is
When it is supplied vertically downward by the auxiliary supply unit and a predetermined amount is supplied to the unraveling box, the movable blade swings to the fixed blade side and cuts the cooked rice, and at the same time shuts off the inlet section at the upper part of the unraveling box, A shortage of additional cooked rice with respect to the preset main weighing unit setting value can be obtained. Then, this cooked rice is replenished on the fixed quantity cooked rice on the conveyor through the opening at the lower part of the unraveling box.

That is, the target set value of cooked rice is 100
When g is set, first, both main measuring units are controlled in order to supply 90 g in the main measuring unit and 10 g difference between them in the next auxiliary measuring unit. However, if a measurement error occurs in the main measuring unit,
For example, when only 88g is supplied, the shortage of the measuring instrument is 2
g is measured and the signal is transmitted to the auxiliary weighing unit. Then, the auxiliary measuring unit immediately adjusts the auxiliary supply amount based on the signal, and supplies the accurate difference 12 g from the main measuring unit.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an entire front view of an embodiment of the cooked rice supply device according to the present invention, and FIG. 2 shows an enlarged cross-sectional view of the same embodiment as above, and FIGS. 3 (A), (B), ( FIGS. 4C and 4D are enlarged sectional views showing the cooked rice supply and cooked rice cutting states of the main supply unit and the main measuring unit in the same embodiment in the order of steps, and FIG. 4 shows the operation mechanism of the stopper in the measuring unit. FIG. 5 shows a front view.
Shows a plan view of the stopper operating mechanism, and FIG.
The front view which carried out the partial cross section of other embodiment of a measuring part is shown,
FIG. 7: shows the front view of an auxiliary supply part and an auxiliary metering part parallel cutter.

As shown in FIGS. 1 and 2, the cooked rice supply apparatus of this embodiment includes a base 1 and a lifter 2 attached to one side of the base 1 in the vertical direction. The base 1 is provided with a hopper 3, a loosening mechanism 4, a main supply unit 5 and an auxiliary supply unit 6.

The lifter 2 raises and lowers the bucket 7. The cooked rice a is put into the bucket 7, and the cooked rice a is raised and conveyed in this throwing state. Next, the bucket 7 rolls at the rising end of the lifter 2 so that the cooked rice a
Is dropped into the hopper 3 and thrown in, and the cooked rice a thus thrown collides and breaks the lump of cooked rice into pieces.

As shown in FIGS. 1 and 2, the unraveling mechanism 4 has a plurality of unraveling pawls 10, 10 ... On the other hand, they are juxtaposed so as to form multiple rows in an oblique direction, and each release claw 10,
10 are configured so as to make uniform contact with the cooked rice a. As a result, the cooked rice a is not entangled with the loosening claws 10, 10, ...

As shown in FIGS. 1 and 2, the main feeding portion 5 of the cooked rice a has a pair of left and right feed rollers 12 axially supported so as to face each other between the guide plate 11 and the transfer plate 11 '. , 13, 14 are provided. It is provided with a pair of feed rollers 12, 13, and 14. The distance between the pair of feed rollers 12, 13, 14 is gradually decreased from the upper side, which is the feeding direction of the cooked rice a, to the lower side, and the feed rollers 12, 13, 14 pass between the feed rollers 12, 13, 14 to make the cooked rice a. a is gradually compression-molded to a predetermined thickness and supplied downward.

When the transfer plate 11 'is in the position shown by the solid line in FIG. 2, the cooked rice a unraveled by the cooked rice disassembling mechanism 4 is
The main supply unit 5 and an auxiliary supply unit, which will be described later, are dispensed at the same time, but when the rice in the auxiliary supply unit is full, the transfer plate 11 'rotates to the position shown by the chain double-dashed line in FIG. The supply of cooked rice is stopped.

Below the lowermost feed roller 14,
The opening plates 15 each having a through hole 15a in the center are arranged so as to face each other at a horizontal position. The cooked rice a that has passed between the feed rollers 14 has a rectangular cross section and hangs down from the through hole 15a. Below the opening plate 15, a main weighing section 16 for cooked rice a is arranged.

As shown in FIGS. 1 and 2, the main weighing section 16 is horizontally reciprocally movable in the front-rear direction (horizontal direction in FIGS. 1 and 2) below the opening plate 15. It is composed of a cooked rice feed table 17 arranged and a cutter / pusher 18 mounted on the cooked rice feed table 17 so as to be reciprocally movable in the left-right direction and horizontally.

The cooked rice feed table 17 is formed in a substantially concave lateral cross section in the longitudinal direction (horizontal direction), and a cutter / pusher 18 is slidably fitted and placed in the concave portion. There is.

The cutter / pusher 18 has a cutting edge 18a at the upper end (upper right end in FIG. 2). As shown in FIG. 2, the cutting edge 18a is provided so as to project forward (to the right in FIG. 2), the upper surface thereof is formed into a horizontal plane, and the lower surface is inclined downward from the tip of the cutting edge 18a. It is so-called single-edged.

The cutter / pusher 18 cuts the cooked rice a hanging from the through hole 15a while oscillating the lower surface of the opening plate 15 from the retracted position shown in FIG.
As shown in (B), the fixed amount of cooked rice a ₁ that has been moved forward and cut together with the cooked rice feed table 17 is transferred to the cooked rice placing table 21 of the weighing unit 19, which will be described later, and thereafter, FIG. As shown in FIG. 5, the vehicle moves backward to a predetermined position and stops.

In the main weighing section 16 described above, the set amount of cooked rice is set.
(Target weight) less quantitative rice a ₁(For example, set amount
Cut and weigh cooked rice a to obtain 90% of This
The main weighing unit 16 is driven by a known AC servomotor.
It is performed by semi-closed loop control.
There is no denying Dan.

A measuring unit 19 is arranged downstream of the main measuring unit 16 (on the right side in FIGS. 1 and 2), and an auxiliary measuring unit 20 is arranged downstream of the measuring unit 19.
Are arranged.

The measuring unit 19 is shown in FIGS.
As shown in (A), (B), (C), and (D), the cooked rice placing table 21 horizontally fixed at the same height as the cooked rice feeding table 17 and the cooked rice placing table 21 are supported. And a measuring instrument 22. The cooked rice placing table 21 receives the fixed quantity cooked rice a ₁ from the cooked rice feeding stand 17. The scale 22 measures the fixed quantity cooked rice a ₁ received by the cooked rice placing table 21 together with the cooked rice placing table 21. Then, after weighing, the cooked rice auxiliary supply unit 6 acts to supply the insufficient amount of cooked rice, which is found by the weighing device 22 to measure, onto the fixed quantity cooked rice a ₁ .

Further, the measuring unit 19 is provided with a stopper 23. As shown in FIG. 4, when the stopper 23 receives the fixed amount of cooked rice a ₁ on the cooked rice placing table 21,
It is located on the most downstream side of the cooked rice placing table 21, and acts by the cutter and pusher 12 to stop the fixed quantity cooked rice a ₁ sent from the cooked rice feeding table 17. In this embodiment, the stopper 23 is controlled so as to move along a rectangular locus on the cooked rice placing table 21 as shown by the chain double-dashed line in FIG. 2, and as will be described later, the stopper 23 is a fixed quantity cooked rice. It acts so as to send out a ₁ .

Next, the operation mechanism 24 of the stopper 23 of this embodiment will be described. The operating mechanism 24 is
As shown in FIGS. 4 and 5, the frame 25, the winding transmission mechanisms 26, 26, and a drive source 27 such as a motor are provided.

The frame 25 includes a front plate 25a and a rear plate 25a.
b is fixed in parallel with a plurality of bolts / nuts 25c, 25c ...

The winding transmission mechanism 26, 26 includes a front plate 25a.
It is provided inside each of the back plate 25b and facing the front rectangular shape. Further, the both-winding transmission mechanisms 26, 26
Is one drive pulley 28 and three driven pulleys 2
It is formed by winding the endless belt 30 around 9, 29, 29, or, although not shown, one drive sprocket and
It is also possible to use one formed by winding an endless chain around three driven sub-rockets. A stopper 23 is vertically attached to the belt or chain with its upper end pivotally mounted, and is driven by a drive source 27 to both front and rear winding transmission mechanisms 26, 2.
By rotating 6 at the same speed in the direction indicated by the arrow b in FIG. 4, the stopper 23 moves from the position indicated by the solid line in FIG. 4 to the position indicated by the broken line. Alternatively, it is moved from the position shown by the broken line to the position shown by the solid line and stopped.

In FIG. 4, reference numerals 31 and 32 denote hooking pins for preventing the stopper 23 from swinging (rotating). The latch pins 31 and 32 are the cutter and pusher 18
When quantitative rice a ₁ is fed onto the rice mounting table 21 by, or by quantitative rice a ₁ cutter and pusher 18 on rice mounting table 21, when sending the auxiliary metering unit 20 below the next step, the cutter cum Pusher 2
It acts to hold the 3 in a vertical state without rotating.

In the second embodiment, as shown in FIG. 6, the weighing unit 19 winds the conveyor belt 35 around the drive roller 33 rotated by the drive source 27a and the driven roller 34. The measurement conveyor 36 is formed, and the measurement conveyor 36 is placed on the weighing device 22. The weighing unit 19 weighs the fixed quantity cooked rice a ₁ together with the measurement conveyor 36, and then subtracts the weight of the measurement conveyor 36 from the measured value to measure the weight of the fixed quantity cooked rice a ₁ .

The measuring unit 19 is constructed by combining a load cell and a measuring conveyor 36, and adopts a weight check system from the continuity of the machine.

On the downstream side of the weighing unit 19, an auxiliary feed unit 6 for cooked rice, an auxiliary weighing unit 20, and a conveyer 37 are arranged from the upper side to the lower side. As shown in FIGS. 2 and 7, the auxiliary supply unit 6 is linked and linked to the main supply unit 5 by the bypass conveyor 38.

As shown in FIGS. 2 and 7, the auxiliary supply unit 6 is provided below the scraping blade 39 and a rotatable scraping blade 39 disposed in the vicinity of the bypass conveyor 38. Plural supply rollers 40 and 41, and an unraveling box 42 provided below the supply rollers 40 and 41.
It has and. The scraping blade 39 is rotationally driven in the direction of the arrow in the drawing, and scrapes the cooked rice a conveyed by the bypass conveyor 38 between the supply rollers 40 and 41. The cooked cooked rice a becomes additional cooked rice a ₂ and is supplied by the supply roller 4
It is supplied downward by 0, 41.

As shown in FIG. 7, the unraveling box 42 is opened at the upper and lower ends, and the unraveling blade 43 is provided inside.
Is rotatably supported. The inlet 42a portion of the rice supply path Add rice a ₂ in construed box 42, the cutter consisting of a fixed blade 44 and the movable blade 44 is provided opposite. The fixed blade 44 extends toward the inlet 42 a side and is formed integrally with the unraveling box 42.

As shown in FIG. 7, the movable blade 45 is formed in a substantially arcuate shape that is bent upward, and its base side is connected to the swing link 46. The swing link 46 is reciprocally swung by a drive mechanism (not shown), and the swing causes the movable blade 45 to come into contact with and separate from the fixed blade 44, thereby opening and closing the inlet 42a of the cooked rice supply passage.

The auxiliary metering unit 20 has an additional supply amount set in advance together with the main metering unit 16, but the measured amount of the cooked rice a ₁ cut and cut by the main metering unit 16 is measured by the metering unit 19, If there is a difference from the target weight, it is converted into an electric signal and transmitted to the auxiliary weighing unit 20, and an accurate additional supply amount including this difference is measured as the target value of the auxiliary weighing unit 20. Such driving of the auxiliary measuring unit 20 is performed by AC
Servo motor is used for semi-closed loop control.

The control device installed in the control box 47 shown in FIG. 1 and FIG. 2 of each part described above uses a well-known PC (sequence) as the main controller, and the inverter control A
C Servo motor control etc.

[0042]

Since the present invention is configured as described above, according to claim 1, a fixed amount of cooked rice that is cut and weighed by the main weighing unit and this fixed amount of cooked rice are measured by the main weighing unit. The shortage that has been found out is cut and weighed by the auxiliary weighing unit, so that the cut surface with a small amount of shortage rice does not become uneven, so it is possible to consistently supply a set amount of rice without error and a structure Is easy and can be downsized,
The drive mechanism can also be simplified.

In the second aspect, the fixed amount of cooked rice can be accurately received at the predetermined position on the cooked rice placing table by the stopper, and the shortage of the fixed amount of cooked rice can be measured more accurately. Since the stopper is moved and held at the front end and the rear end of the cooked rice placing table, it can smoothly and surely receive and push out the fixed quantity cooked rice, and it is structurally simple and can be downsized, and It can be manufactured at low cost.

Further, in claim 3, a cutter is used, in which one is a fixed blade and the other is a movable blade having a substantially arc shape, and the cooked rice is cut by swinging and contacting the movable blade with respect to the fixed blade. Therefore, the cut surface of the cooked rice is formed in an arc shape, and the cooked rice can be accurately supplied with a constant weight without unevenness.

[Brief description of drawings]

FIG. 1 is an overall front view showing an embodiment of a cooked rice supply device according to the present invention.

FIG. 2 is an enlarged front view showing a moving unit in the same embodiment.

3A, 3B, 3C, and 3D are front views showing cutting, weighing, and transferring of cooked rice in the main weighing unit and the weighing unit in the order of steps in the same embodiment.

FIG. 4 is a front view showing a stopper operating mechanism of the weighing unit in the same embodiment.

FIG. 5 is a plan view showing the same stopper actuating mechanism.

FIG. 6 is a front view showing another embodiment of the weighing section in the above-mentioned cooked rice supplying apparatus with a partial cross section.

FIG. 7 is an enlarged front view of an auxiliary supply unit and an auxiliary weighing unit in the above-mentioned cooked rice supply device.

[Explanation of symbols]

5 Main Supply Section 6 Auxiliary Supply Section 14 Feed Roller 15 Opening Plate 15a Through Hole 16 Main Weighing Section 17 Cooked Rice Feeding Table 18 Cutter / Pusher 18a Blade Edge 19 Weighing Section 20 Auxiliary Measuring Section 21 Cooked Rice Placement Table 22 Weigher 23 Stopper 37 Transport Conveyor 44 Fixed blade 45 Movable blade a Cooked rice a ₁ Fixed quantity rice a ₂ Shortage cooked rice

Claims (3)

[Claims] 1. A main metering unit which is arranged below a main supply unit that supplies compressed rice while compressing and molding the cooked rice, and cuts and measures the cooked rice that hangs down from the cooked rice supply path to obtain a fixed amount of cooked rice that is less than a set value for the cooked rice. And a weighing unit for measuring the fixed amount of cooked rice received from the main measuring unit, and a cooked rice having a weight difference between the cooked rice set value and the fixed amount of cooked rice measured by the measuring unit is replenished on the fixed amount cooked rice on the conveyor. A cooked rice supply device comprising an auxiliary weighing unit, wherein the main weighing unit horizontally fixes and arranges an opening plate provided with a through hole so as to face the lower center of the pair of left and right lowermost feed rollers. , A cutter and pusher that cuts the cooked rice hanging from the through hole while oscillating the lower surface of this opening plate with the cutting edge at the upper end of the tip, and a cooked rice feed table that sends the cut quantitative cooked rice to the next weighing unit together with the pusher. Free movement back and forth A cooked rice supply device, characterized in that 2. A main metering unit which is disposed below a main supply unit that supplies compressed rice while compressing and molding the cooked rice, and obtains a fixed amount of cooked rice that is less than a set value of cooked rice by cutting and measuring the cooked rice that hangs from the cooked rice supply path. And a weighing unit for measuring the fixed amount of cooked rice received from the main measuring unit, and a cooked rice having a weight difference between the cooked rice set value and the fixed amount of cooked rice measured by the measuring unit is replenished on the fixed amount cooked rice on the conveyor. A cooked rice supply device comprising an auxiliary weighing unit, wherein the weighing unit is arranged on a cooked rice placing table, a weighing device supporting the cooked rice placing table, and an upper portion of the cooked rice placing table so as to move along a rectangular trajectory. A cooked rice supply device comprising: a controlled cooked rice fed from the main weighing unit, which is stopped at a predetermined position, and a stopper for pushing the cooked cooked rice onto a conveyor. 3. A main measuring unit which is arranged below a main supply unit that supplies compressed rice while compressing and molding the cooked rice, and cuts and measures the cooked rice that hangs down from the cooked rice supply path to obtain a fixed amount of cooked rice that is less than a set value of cooked rice. And a weighing unit for measuring the fixed amount of cooked rice received from the main measuring unit, and a cooked rice having a weight difference between the cooked rice set value and the fixed amount of cooked rice measured by the measuring unit is replenished on the fixed amount cooked rice on the conveyor. A cooked rice supply device comprising an auxiliary measuring unit, wherein the auxiliary measuring unit includes a cutter arranged in a cooked rice supply path for supplying cooked rice on the fixed quantity cooked rice transferred from the main measuring unit, The cutter is swingably supported so as to come into contact with and separate from the fixed blade arranged so as to face each other in the cooked rice supply path, and at the same time the cooked rice is cut by turning to the fixed blade side. A substantially arc shape that cuts off the cooked rice supply path A cooked rice supply device characterized by being formed by a movable blade.