JPH05240687A - Instrument for weighting constant-amount of boiled rice - Google Patents

Abstract

PURPOSE:To obtain an instrument which can weigh a mass of boiled rice by unlimitedly bringing the mass to a set weight in such a state where the instrument corresponds to differences in density and weight caused by the vertical density variation or boiled state of boiled rice in a rice tub. CONSTITUTION:A thickness regulating device 3 and intermittently operating cutter 4 for continuously carried boiled rice 2 are provided immediately above the upper shifting section 1' of a boiled-rice carrying-out conveyor 1 and a weighing conveyor 5 the speed of which is faster than that of the conveyor 1 is provided at the front end section of the conveyor 1. An information processor 6 which compares the weighing value of the conveyor 5 with a set weight with a control means 9 which controls the rotating speed of the drive motor 8 of the conveyor 1 based on a signal 7 from the processor 6 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weighing device based on the weight of rice to be placed in a bento box, a bowl, or processed into rice balls, laver rolls and the like.

[0002]

2. Description of the Related Art Conventionally, since cooked rice grains are likely to stick to each other, the volume of the cooked rice was measured by pushing it into the square between the upper and lower shutters.

However, when the cooked rice is stored in a portable heat-retaining sack and transported to the factory, the density of the rice increases as it goes below the stalk, and the lower end opening shutter of the stalk is opened to push it down the stalk. It was found that when packed in, the volumes were measured identically, but with considerable differences in density or weight.

[0004]

DISCLOSURE OF THE INVENTION According to the present invention, a fixed amount of rice in a portable heat-retaining bin can be discharged downward by opening a lower end opening shutter, and high-speed weighing can be performed to a constant weight even if the rice in the bin has a different density. The purpose is to obtain a weighing device.

[0005]

In order to achieve the above object, the present invention provides a thickness regulating device for conveying continuous rice and an intermittent motion cutter for the continuous rice, which is provided directly above the upper transition part of the rice discharging conveyor. A weight measuring conveyor having a speed higher than that of the conveyor is arranged at the tip end of the conveyor, and an information processing device for comparing and calculating the measured value by the measuring conveyor and the set weight, and a speed control means for the carry-out conveyor by a signal from the device. The fixed-rate rice weighing device thickness regulating device provided is formed by two rice-feeding rollers. Instead of the speed control means of the constant-rate rice-measuring device rice unloading conveyor described above, a rotation speed control means of the rice-feeding roller is provided. In addition to the speed control means of the fixed quantity rice weighing device rice carry-out conveyor according to the second aspect of the present invention, which is provided with the rotation speed control means of the fixed quantity rice weighing device rice supply roller according to the second invention, In the first, second, third or fourth aspect of the invention, which is provided with intermittent operation time control means instead of the speed control means of the quantitative rice weighing device according to the first or second invention, which is provided with the intermittent operation time control means of the cutter. It is configured by the quantitative rice weighing device described in each of the inventions.

[0006]

In the present invention, the continuous feeding rice 2 is formed on the upper transition portion 1'of the rice discharging conveyor 1 to a substantially constant thickness by the thickness regulating device 3, and the continuous movement of the rice is performed by the cutter 4 directly above the upper transition portion 1 '. The rice 2 is divided into a certain length of rice lump 12 '.

The conveyor 1 is rotated at a constant speed by a drive motor 8, conveys the continuous rice 2 at a constant speed, and is cut by a cutter 4 at a constant time.
2'migrates to the weight measuring conveyor 5 and the next rice block 12 '
Is weighed before moving onto the weighing conveyor 5, and the weighing rice cake 12 ′ shifts to the next step.

The measured value of the above rice block 12 'is the information processing device 6
Is calculated and compared with the set weight, and the rotation speed control means 9 of the drive motor 8 is operated by the signal 7 to decrease the speed of the drive motor 8 when the measured value is larger than the set weight, and to increase it when the measured value is small. By doing 1
The 2'weight can be brought as close as possible to the set weight.

When the thickness regulating device 3 is formed by two rice feed rollers 3'and 3 ", the drive motor 8'of the rollers 3'and 3" is rotated by the rotation speed control means 9'as described above. It suffices to control the amount, or the rotation speed may be controlled together with the drive motor 8 of the rice carry-out conveyor 1.

Further, as shown in FIG. 2, the intermittent operation cutter 4 is operated by the intermittent operation time control means 10 "by a signal 7 ', and the operation interval of the cutter 4 is adjusted by controlling the intermittent time, or intermittent drive is performed. By adjusting the stop time of the motors 11 and 11 ', the weight of the rice cake 12' can be brought close to the set weight as much as possible.

[0011]

[Example] An upper transition portion 1'of a rice carry-out conveyor 1 is disposed directly below a rice supply port 13 provided in a machine frame, and two rices are provided on both sides of the supply port 13 in the space. Supply rollers 3 ', 3 "are provided, and the thickness regulating device 3 for the continuous rice 2 is supplied from the supply port 13 onto the conveyor 1 by being rotated in opposite directions by the drive motors 8', 11 '. Is.

A conveyor belt guide support plate 14 is provided on the lower surface of the upper transition portion 1'of the conveyor 1, an intermittent operation cutter 4 for the continuous rice 2 is provided, and it is intermittently moved up and down by a crank 4 '. There is. The crank 4 ′ rotates once by the one-rotation motor 15 and then stops, and the stop time can be controlled by the intermittent operation time control means 10 ″ (FIG. 2).

Constant speed and / or variable speed motors are used for the drive motors 8 and 8'of the rice carry-out conveyor 1 and / or the rollers 3'and 3 ". A high-speed weight weighing conveyor 5 is provided directly (FIG. 1) or via an intermediate speed conveyor 16 (FIG. 2), and the weight of the rice cake 12 ′ divided by the cutter 4 is measured by the weighing conveyor 5 for the next step. Can be transferred to.

The weight of the rice cake 12 'is set in advance by the setting device 17, the weight is measured by the load cell 5'through the weighing conveyor 5, and the digital electric signal is received by the information processing device 6 to obtain the set value. The rotation speed control means 9, 9 ′ and the intermittent operation time control means 10, 10 ′ or 10 ″ are operated by a comparison operation, and the signal 7 of these control means 9, 9 ′, 10, 10 ′ or 10 ″ is used. Any one or two or more of them are simultaneously operated to adjust the rotational speed of the drive motor 8 and / or the drive motor 8'of the rollers 3 ', 3 ", or intermittent drive motors 11, 11' or the cutter 4 described above. The weight of the rice cake 12 'can be brought as close as possible to the set weight by adjusting the operation interval of.

A portable heat retaining cabinet (not shown) may be placed on the supply port 13 or a fixed cabinet may be provided. Further, pulse control is used for the control means 9, 9 ', 10, 10', 10 ", or control is performed by a rotation angle encoder or the like. Reference numeral 18 in the drawing is a rice level detector. is there.

[0016]

Since the present invention is configured as described above, even if the density of the rice 12 in the pan provided at the upper portion of the rice supply port 13 changes in the vertical direction, the density depending on the cooking condition of the rice 12 again. Or, even if there is a change in unit weight, the rice cake 12 'can be weighed by weight, and the measured value of the rice cake 12' can be brought as close as possible to the set weight value, and the rice cake weight can be almost constant weight very quickly. It has a measurable effect.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a quantitative rice weighing device of the present invention.

FIG. 2 is an explanatory view of the above-mentioned device provided with an interval control means for an intermittent operation cutter.

[Explanation of symbols]

 1 Rice carry-out conveyor 1'Upper transition part 2 Conveying continuous rice 3 Thickness regulating device 4 Intermittent movement cutter 5 Weight weighing conveyor 6 Information processing device 7, 7'Signal 9, 9 'Rotation speed control means 3', 3 "Rice supply Roller 10, 10 ', 10 "intermittent operation time control means

Claims (6)

[Claims] 1. A thickness regulating device for conveying continuous rice and an intermittent motion cutter for the continuous rice are provided right above an upper transition portion of the rice discharging conveyor, and a weight weighing conveyor having a speed higher than that of the conveyor is provided at the tip of the conveyor. A quantitative food weighing device, which is provided with an information processing device for comparing and calculating the weight value set by the weighing conveyor and a set weight, and a speed control means for the carry-out conveyor based on a signal from the device. 2. The fixed quantity rice weighing device according to claim 1, wherein the thickness regulating device is formed by two rice supply rollers. 3. Instead of the speed control means of the rice carry-out conveyor,
The quantitative rice measuring device according to claim 2, further comprising a rotation speed control means for the rice supply roller. 4. The fixed quantity rice weighing device according to claim 2, further comprising rotation speed control means for the rice supply roller. 5. Instead of the speed control means of the rice carry-out conveyor,
The intermittent operation time control means for the cutter is provided.
The fixed quantity rice weighing device described in (1) or (2). 6. The quantitative food measuring device according to claim 1, wherein intermittent speed control means is provided instead of the speed control means.