JP2001352923A - Method and machine for weighing and putting food in container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mass produce foods to be put uniformly in an target weight in containers c. SOLUTION: A food supply column 2 is arranged below the edge part of a food supply conveyor 1 and a part of a food dropped from the upper part of the food supply conveyor 2 is introduced into a storage part. The food in the food supply conveyor 2 is dropped and slid and a partial deficient amount of the object weighed value is measured by a volume. The volume measured food is dropped and supplied to a transportation conveyor 5 by opening a lower part opening and closing shutter 3" and the weight of the volume measured food is weighed by an electronic measure 4. The measured weight measures a partial shortage weight of the target weighed value and the measurement signal is computed by a controller 18. A deficient weight is calculated into a volume and the deficient volume is dropped on a transportation conveyor 6 by a supplying apparatus 8 attached to the storage part to supplement the deficiency of the measured weight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for measuring food such as rice.

[0002]

2. Description of the Related Art Conventionally, there has been developed an apparatus for weighing foods such as rice continuously or without interruption and mass-producing quantitative foods.
However, the apparent density of the food was not constant, so that the weighing accuracy was uneven in weight.

[0003] For this reason, means for measuring the weight by an electronic scale have been taken, but the density and the volume have been uneven and the appearance has been impaired.

[0004] It has been very difficult to make the unraveled rice to have a substantially constant apparent density and to weigh it at the same time.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mass-producing machine for obtaining weighed foods having substantially constant weight and volume.

[0006]

In order to achieve the above object, the present invention provides a food supply cylinder below a terminal end of a food supply conveyor, and introduces a part of food descending from an upper part of the supply cylinder into a storage section. Then, the food in the supply cylinder is slid downward, and a part of the target weighing value is weighed by volume, and the volume weighed food is dropped onto the carry-out conveyor by opening the lower opening / closing shutter, and is electronically weighed. The weight is weighed, and the weighed weight weighs a partial unsatisfactory weight of the target weighing value, the signal is calculated by the control device, the insufficient weight is converted into a volume, and the insufficient volume is stored in the storage unit. The first invention according to the first invention, wherein the intended weighing value of the food weighing method is 100% by weight and partially deficient is about 90% of the weighing weight in which the deficient weight is compensated by dropping to a carry-out conveyor by a provided compensation device. End of food supply conveyor for food weighing method A food supply cylinder is provided below, and a part of the food descending from the upper part of the supply cylinder is introduced into the storage part, and the food in the supply cylinder slides downward, and a partial shortage of the target measured value is reduced by volume. The weighed food is weighed and the weighed food is dropped and supplied onto the carry-out conveyor by opening the lower opening / closing shutter, and the weight is weighed by electronic weighing. A food weighing device capable of converting the shortage amount into a volume amount calculated by the device, and dropping the insufficient volume amount onto a carry-out conveyor by a refilling device provided in the storage section to compensate for the shortage of the weighed weight. The food weighing and laying machine according to the third aspect of the present invention, wherein the weighing value for the laying machine is 100% by weight, and the partially deficient amount is about 90%.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A food supply conveyor 1 such as rice is provided at the upper end of a machine box 14, and a forward / reverse spiral is mounted on a horizontal rotating shaft 12 'orthogonal to the rotating direction of the conveyor 1 on the end of the conveyor 1. Strip 12 "and spoke 1 connecting it to the shaft 12 '
2a, a plurality of (four) small horizontal shafts 13 'orthogonal to the terminal roller shaft of the conveyor 1 are arranged side by side below the terminal end, and small small shafts 13' are attached to each small horizontal shaft 13 '. Square blade 1
By providing 3 "at alternate positions, small-rotation
Is provided, and a large lump food (rice) is provided on the end of the conveyor 1.
Is solved, and the small-sized food product is further reduced under the terminal portion.

A long chute 15 is provided on one side of the small-rotation unraveling machine 13, a short chute 15 'is provided on the other side, and a supplementary small conveyor 10 is provided immediately below the short chute 15'.
Then, the starting end (right end) of the small conveyor 10 and the long shoot 15
A food supply cylinder 2 such as rice is provided immediately below the lower end of the container.

[0009] Immediately below the food supply cylinder 2, a volume measuring cell 3 having upper and lower alternate opening and closing shutters 3 'and 3 "is provided.
A small carry-out conveyor 5 supported by an electronic weighing scale (load cell) 4 is provided directly below the measure 3, and a carry-out conveyor 6 is provided following the conveyor 5.

Following the supplementary small conveyor 10, a second
Is provided with a storage section 7 at the end thereof, and the first and second supplementary small conveyors 10, 10 'are provided.
Thus, a part of the unraveled food (falling rice) that has descended from the small-rotating unraveling machine 13 can be introduced into the storage unit 7.

The first supplementary small conveyor 10 is rotatable in the normal and reverse directions. When the supply tube 2 becomes empty in the middle of the supply tube 2 according to the supply amount detection signal from the photoelectric tube sensor 16, an arrow a
To supply the descending food into the supply cylinder 2 and, when it is true, rotate in the direction opposite to the arrow a to introduce the descending food into the storage section 7. Conveyor 10 '
Also from the stopped state, the second photoelectric cell sensor 16 'detects the piled food on the second conveyor 10', and the arrow a
And the small agitator 17 also rotates to introduce the deposited food on the second supplementary small conveyor 10 ′ into the storage unit 7.

The weighed food such as rice which has entered the volume measuring cell 3 from the supply cylinder 2 is preliminarily measured for insufficient capacity by adjusting the height of the upper and lower shutters 3 'and 3 "of the cell 3, and the shutter 3',
By alternate opening and closing of 3 ", it falls on the small conveyer 5 below, and the insufficient weight (for example, about 90%) is measured by electronic weighing.

The measured insufficient weight (for example, about 90%) is dropped by the signal from the electronic scale 4 into the container c on the carry-out conveyor 6 by the filling device 8, and the upper surface of the food in the container c is removed. It can be compensated for in a fluffy state.

The compensating device 8 has two thread-wound rollers 8 ′, 8 ′ controlled by a control device 18 based on a signal from the electronic scale 4.
The shortage can be compensated from the storage unit 7 by rotating by the angle calculated in.

The front and rear facing plates 11, 11 (FIG. 3) of the food supply cylinder 2 are slidably adjusted in opposite or opposite directions (arrows b) by toggles 19, 19, respectively. The tips of the operating rods 21, 21 pivotally supported by the pivot 20 are pivotally attached 23, 23 to target positions of the forward / reverse rotating plate 22.
The front and rear plates 11, 11 can be controlled to approach and separate from each other by the forward / reverse rotation control of (2).

As shown in FIG. 3, the left and right opposing plates 9, 9 are slidably instructed on the inner surfaces of the arms 25, 25 approaching and moving away from each other through the coil strips 24, 24 between the front and rear opposing plates 11, 11.
The arms 25, 25 are slidably pressed in the lateral direction along the opposing surfaces of the front and rear opposing plates 11, 11 by the ridges 24, 24.

Left and right outer plates 9 ', 9' integrally connected to the left and right facing plates 9, 9 in a gate shape or the like are provided on the outer surfaces of the arms 25, 25.
And slide bearings 9 ″, 9 ″ are provided on the outer surface plates 9 ′, 9 ′.
Levers 26, 2 slidably supported in the front-rear direction via
6 is engaged with a bent groove 27 'of the cylindrical cam 27 by a pin 26', and the cylindrical cams 27, 27 are rotated in one direction by a rotating shaft 28, whereby the levers 26, 26 are moved to the left and right guide rods 29, 26. 4 and 5 is repeated along the left and right outer panels 9 ', 9' and the arm 2
The rice in the food supply cylinder 2 can be compressed to a uniform density by repeatedly oscillating the left and right plates 5, 25 and the left and right opposed plates 9, 9 in the left and right direction.

The left and right facing plates 9, 9 are cylindrical cams 27, 2
Female screw portions 31, 3 provided on portal frames 30, 30 supporting
1 is a forward / reverse male screw 3 formed at both ends of the left / right direction rod 32
4 'and 32', and as shown in FIG. 4, forward / reverse rotation by a forward / reverse motor via a worm gear 33 provided in the middle of the left-right direction rod 32 and a worm 33 'meshing with the worm gear 33'. Thus, the right and left opposing plates 9 can be controlled to approach or separate from each other in the left-right direction via the portal frames 30, 30, the cylindrical cams 27, 27 and the levers 26, 26.

As shown in FIGS. 6 and 7, the upper opening / closing shutters 3 ', 3' of the measuring chamber 3 are supported at fixed positions by upper support plates 33a, 33a fixed to the casing 14 at fixed positions. The lower opening / closing shutters 3b, 3b are, as shown in FIG. 7, lower supporting plates 33 provided at both ends of a lifting / lowering adjusting plate 36 provided on a screw 35 which is screwed into the vertical screw 34.
b, 33b, the female screw 35 can be rotated forward and backward to adjust the distance h between the upper and lower shutters 3 ', 3 "to control the capacity of the measuring tub 3.

As shown in FIGS. 1 and 2, the replenishing device 8 is provided with a spool-shaped mutual reversing roller 8 ',
8 'is connected through meshing gears 8 ", 8",
The rotation angle of the motor 37 is determined by the signal from the motor 8, and the insufficient volume of the food in the storage unit 7 can be supplied to the container c on the lower conveyor 6.

Accordingly, the food such as rice descending from the end of the food supply conveyor 1 is broken into large chunks by the forward, reverse, or high or low speed rotation of the rotary disintegrating machine 12, and is further dropped and rotated small. The food is further unraveled after passing through the unraveling machine 13, and the entire amount of the descending food enters the food supply cylinder 2 by the rotation of the first supplementary small conveyor 10 in the a direction. In this state, the upper opening / closing shutter 3 'is closed, the lower opening / closing shutter 3 "is open, and the measuring cell 3 is open downward.

When the food in the supply tube 2 reaches a certain height, the height is sensed by the photoelectric tube sensor 16 and the first and second supplementary small conveyors 10, 10 'are signaled by the control device 18 to give a signal. Automatically reverses and transports a part of the falling food in the direction opposite to the arrow a, and stores it in the storage unit 7.

In the meantime, the left and right opposed plates 9 of the food supply cylinder 2 vibrate close to and away from each other, so that the food inside is adjusted to a substantially uniform density and the apparent specific gravity is adjusted substantially uniformly.

In this state, as shown in FIGS. 6 and 8, the lower opening / closing shutter 3 ″ is closed, and the food of approximately uniform density in the supply tube 2 slides down to fill the measuring tub 3. The upper opening / closing shutter 3 'is closed and the target weighing value
The partial shortage (about 90%) of (100% by weight) is measured in volume by the basin 3.

In this state, when the upper surface of the food to be supplied falls below the photoelectric tube sensor 16, the supplementary small conveyor 10 rotates forward in the direction of the arrow a by the signal of the photoelectric tube sensor 16 to replenish the food descending in the supply tube 2. .

The food whose volume has been measured by the measuring chamber 3 is dropped and supplied into the container c on the small carry-out conveyor 5 by opening the lower opening / closing shutter 3 ", and the weight is measured by the electronic scale 4. The weight is measured. A partially unsatisfactory weight (for example, 88% by weight) of the weighed value (100% by weight) is weighed, and a signal thereof is calculated by the control device 18 to convert the weight% to a volume amount in a deficient amount, and the insufficient volume amount is calculated. The unloading conveyor 6 by the replenishing device 8
The container is dropped into the container c, and the above-mentioned insufficient volume is softly placed on the food in the container c, so that approximately 100% by weight of the food can be laid in the container c.

In the figure, reference numeral 38 denotes a food vat, 39
Numeral 40 denotes a rising and falling table of the bat 38, and numeral 40 denotes both side guide plates of the food supply conveyor 1.

[0028]

According to the present invention, as described above, the volume-weighed foods can be made to substantially match the target weights, respectively, and can be filled almost to the target weight by compensating for the lack of the measured weights. There is an effect to get.

The two steps of the weight weighing operation and the shortage compensation operation are automatically performed in the middle of the conveyer from the food supply conveyor of one apparatus, so that the above two steps can be simplified.

[Brief description of the drawings]

FIG. 1 is a front view of a food measuring and laying machine of the present invention.

FIG. 2 is a plan view taken along the line AA of FIG. 1;

FIG. 3 is a plan view of an adjustment mechanism for a front and rear facing plate of the food supply cylinder.

FIG. 4 is a plan view of a mechanism for adjusting and vibrating the left and right facing plates.

FIG. 5 is a combined plan view of FIGS. 3 and 4;

FIG. 6 is an enlarged front view of the measuring basin.

FIG. 7 is a front view of a lower opening shutter adjustment mechanism.

FIG. 8A is a front view of the upper opening / closing shutter opened. (B) The figure is a front view of the lower opening / closing shutter opened.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 food supply conveyor 2 food supply cylinder 3 ”lower opening / closing shutter 4 electronic metering 5, 6 carry-out conveyor 8 refilling device 18 controller

Claims (4)

[Claims] 1. A food supply cylinder is provided below an end of a food supply conveyor, a part of food descending from an upper part of the supply cylinder is introduced into a storage part, and food in the supply cylinder is slid downward. Partially deficient of the target weighing value is measured by volume, and the volume weighed food is dropped and supplied on the carry-out conveyor by opening the lower opening / closing shutter, and the weight is weighed by an electronic scale. The unsatisfactory weight is weighed, the signal is calculated by a control device to convert the deficient weight into a volume, and the deficient volume is dropped on a carry-out conveyor by a replenishing device provided in the storage unit, and the measured weight is reduced. Food weighing and sizing method to make up for the shortfall. 2. The food weighing method according to claim 1, wherein the target weighing value is 100% by weight, and the partially deficient amount is about 90% thereof. 3. A food supply cylinder is provided below the end of the food supply conveyor, and a part of the food descending from the upper part of the supply cylinder is introduced into the storage part, and the food in the supply cylinder slides downward. A partial deficiency of the target weighing value is weighed by volume, the volume weighed food is dropped and supplied onto the carry-out conveyor by opening the lower opening / closing shutter, and the weight is weighed by an electronic scale, and the weighed weight is part of the target weighing value. The unsatisfactory weight is weighed, and the signal is calculated by the control device to convert the deficient weight into a volume, and the insufficient volume is dropped on the carry-out conveyor by the replenishing device provided in the storage section to reduce the weighed weight. A food weighing and sizing machine that can compensate for the shortage. 4. The food weighing and laying machine according to claim 3, wherein the target weighing value is 100% by weight, and the partially deficient amount is about 90% thereof.