JPH0995314A - Apparatus for automatically weighing and packing small agricultural product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow products to be put both in a large quantity and a small quantity to accelerate weighing by providing a rough charging damper and a fine charging damper at the exit of a small vibrating conveyer. SOLUTION: At an early stage of throwing in cherry tomatoes onto a small vibrating conveyer 1, the tomatoes are thrown from both a rough charging damper 3 and a fine charging damper 4 into a weighing hopper 6, while when the tomatoes to be weighed reach 80 to 90% of a predetermined quantity, an air cylinder 9 is activated by a signal from a load cell 7, thereby closing the rough charging damper 3. Remaining 10 to 20% of a predetermined quantity of tomatoes are thrown only from the fine charging damper 4. When the predetermined quantity is reached, an air cylinder 10 is activated, the fine damper 4 is closed and charges into the weighing hopper 6 is completed. Then a take-out port shutter 5 is opened by an air cylinder 11, and all tomatoes in the weighing hopper 6 are put into a pack 8 placed below. Thus the tomatoes can be easily and reliably packed efficiently in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for measuring the weight of small agricultural products by a predetermined amount and packing them.

[0002]

2. Description of the Related Art Conventionally, small agricultural products that have been harvested are individually packed in a scale and manually placed on a scale.
It is stored by increasing or decreasing to a predetermined amount.

[0003]

Conventionally, it takes time and labor to pack small agricultural products manually by hand, but the weighing is stable and efficient, easy and reliable in a short time. In addition, it is an object of the present invention to provide a mechanical device that can be automatically packed.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] A small vibration conveyor equipped with a coarse charging damper and a minute charging damper which are openably / closably driven by an actuator at the outlet of the small vibration conveyor, and below the outlet of the small vibration conveyor. A weighing hopper provided with a weighing means provided in the above and an outlet shutter which is openably and closably driven by an actuator, and a control device for controlling these are taken.

[0005]

[Function] By operating the automatic weighing and packing device configured as described above, the small agricultural products supplied to the small vibration conveyor move smoothly from the small vibration conveyor to the weighing hopper, and after the rough charging, a small amount of charging is performed. Is carried out, and after weighing a predetermined amount, it has the action of being put into the pack from the weighing hopper.

[0006]

EXAMPLES Examples of the present invention will be described with reference to the drawings, taking cherry tomatoes as an example of small agricultural products. FIG. 1 is a schematic diagram of an automatic weighing and packing device for small agricultural products. FIG. 2 is a cross-sectional view in which the small vibration conveyor 1 moves, the coarse charging damper 3 and the minute charging damper 4 are opened, and the cherry tomatoes 12 are charged into the weighing hopper 6. FIG. 3 is a cross-sectional view in which the small-sized vibrating conveyor 1 is stopped after a predetermined amount is charged into the weighing hopper 6, and the coarse charging damper 3 and the small amount charging damper 4 are closed. FIG. 4 is a cross-sectional view in which the outlet shutter 5 is opened and the weighed cherry tomatoes 12 are supplied to the pack 8.

According to the present invention, a weighing hopper 6 having a load cell 7 for weighing a predetermined amount of small agricultural products, a small vibrating conveyor 1 for loading the small agricultural products, and a coarse loading damper 3 and a minute amount for adjusting the loading speed thereof. A loading damper 4 is additionally provided, and an outlet shutter 5 that can be automatically taken out is provided at the outlet of the weighing hopper 6. These are electrically linked and are automatically controlled by the control device 13.

The cherry tomatoes 12 collected are supplied to the small vibration conveyor 1. Small vibration conveyor 1 is motor 2
Driven by, the cherry tomatoes 12 on the small vibration conveyor 1 are aligned and conveyed, and are carried out from the open coarse charging damper 3 and the small amount charging damper 4. The delivered cherry tomatoes 12 are put into the weighing hopper 6. In the weighing hopper 6, the tomatoes 12 on the weighing hopper 6 are weighed by a load cell 7 for weighing.

At the initial stage of charging, the cherry tomatoes 12 are charged into the weighing hopper 6 from both the rough charging damper 3 and the small amount charging damper 4, but the cherry tomatoes 12 weighed by the measuring hopper 6 have a predetermined amount of 8 to 8. When it reaches about 90%, the air cylinder 9 is actuated by the signal from the load cell 7 and the coarse charging damper 3 is closed. The remaining 10 to 20% of the predetermined amount of the cherry tomatoes 12 is fed only from the small amount feeding damper 4. When reaching a predetermined amount, the air cylinder 10 operates,
The small amount dumping damper 4 is closed, and the charging to the weighing hopper 6 is completed. At the same time, the motor 2 stops and the cherry tomato 1
2 is not carried out from the small vibration conveyor 1.

When the amount of cherry tomatoes 12 in the weighing hopper 6 reaches a predetermined amount, the air cylinder 11 opens the outlet shutter 5, and all the cherry tomatoes 12 in the weighing hopper 6 are put into the pack 8 installed below. . When the charging is completed, the outlet shutter 5 is closed again by the air cylinder 11, and the coarse charging damper 3 and the minute charging damper 4 are also opened by the respective air cylinders 9 and 10.

The motor 2 of the small vibration conveyor 1 is driven again, and the cherry tomatoes 12 in the small vibration conveyor 1 are conveyed in line. This is repeated automatically and 7 hours per hour
About 80 to 800 pieces are packed.

Although the mini tomatoes 12 are used in this embodiment, any other small agricultural products can be used as long as they can be aligned and conveyed by the small vibration conveyor 1.

[0013]

Since the present invention is configured as described above, it has the following effects.

[0014] By automatically performing the packing by the machine, which is conventionally performed manually by the operator, the labor of the operator can be reduced.

Further, it is inefficient to add the powder little by little from the initial stage of loading, and many packs cannot be packed in a short time. However, if the initial mass loading state is continued to the end, the weight of one pack will vary and it will not work. In view of this, in the present invention, by providing a coarse charging damper and a minute charging damper at the exit portion of the small vibration conveyor, it is possible to carry out both large and minute charging. Therefore, accurate measurement can be performed in a short time. Therefore, there is an effect of increasing efficiency.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an automatic weighing and packing apparatus for small agricultural products according to the present invention.

FIG. 2 is a sectional view of an embodiment of the present invention.

FIG. 3 is a sectional view of an embodiment of the present invention.

FIG. 4 is a sectional view of an embodiment of the present invention.

[Explanation of code] 1 ・ ・ ・ ・ Small vibration conveyor 2 ・ ・ ・ ・ Motor 3 ・ ・ ・ ・ Drainer for coarse loading 4 ・ ・ ・ ・ Damper for minute loading 5 ・ ・ ・ ・ Suction outlet shutter 6 ・ ・ ・ ・Weighing hopper 7 ・ ・ ・ ・ Load cell 8 ・ ・ ・ ・ Pack 9 ・ ・ ・ ・ Air cylinder (for coarse loading damper) 10 ・ ・ ・ ・ Air cylinder (for small loading damper) 11 ・ ・ ・ ・ Air cylinder ( For outlet shutter) 12 ・ ・ ・ ・ Cherry tomato 13 ・ ・ ・ ・ Control device 14 ・ ・ ・ ・ Leaf spring

Claims (1)

[Claims] 1. A small vibration conveyor provided with a coarse charging damper and a minute charging damper, which are openably and closably driven by an actuator, at the outlet of the small vibration conveyor, and provided below the outlet of the small vibration conveyor. An automatic weighing and packing apparatus for small agricultural products, comprising a weighing hopper having a take-out shutter which is opened and closed by a weighing means and an actuator, and a control device for controlling these.