JPH1129103A - Automatic weighing and bagging equipment for grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the leakage of grain from a bag by the automatic opening of a grain tank shutter even when it is taking time to attach a bag to bag holding equipment provided on a weigher as to automatic weighing and bagging equipment for grain. SOLUTION: This automatic weighing and bagging equipment for grain, which is provided with a weigher 3 having bag holding equipment 2 at the bottom part of a grain tank 1 and which inputs grain from the grain tank 1 for bagging in an empty bag 4 hung by the bag holding equipment 2, is further provided with a bag hanging completion sensing means for detecting the completion of hanging on the bag holding equipment 2 the empty bag 4, and when the bag hanging completion sensing means detects the completion of hanging the bag, a shutter 7 provided at the fetching opening 6 of the grain tank 1 is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic weighing and bagging apparatus for taking out a predetermined weight of grains from a grain tank storing grains such as rice and wheat and packing the grains into bags.

[0002]

2. Description of the Related Art As an automatic weighing and bagging device for grain, there is, for example, a device described in Japanese Utility Model Publication No. 2-34173. In this configuration, a bag hanging device is provided on a weighing machine installed below the grain tank, and a shutter is provided at an outlet of the grain tank after the worker hangs an empty bag on the hanging device. Is opened and the grains are charged into the bag. When the weight of the cereal grains measured by the weighing instrument reaches a predetermined weight, the shutter is automatically closed and actuated to complete the bagging. In addition, Japanese Patent Laid-Open Publication No. Sho 62-188401 discloses a method in which when a blank bag is attached to a bag hanging device, a bag is detected by a sensor and a shutter of a grain tank is automatically opened after a predetermined time has elapsed. Te

[0003]

In the above-mentioned known construction, the work can be effectively performed if the shutter is automatically opened without manually opening the shutter after hanging the empty bag on the bag hanging device. . With this automatic opening of the shutter, if it takes time to hang the bag, the shutter will open freely and the grains will fall out of the bag.If the bag can be hung quickly, the shutter Opening operation is slow and the working capacity is reduced. Therefore, an object of the present invention is to make it possible to perform work efficiently according to the work ability of a worker.

[0004]

According to the present invention, a weighing machine 3 provided with a bag holding device 2 is provided below the grain tank 1 and the grain tank 1 is placed in an empty bag 4 suspended from the bag holding device 2. In the automatic cereal weighing and bagging apparatus for charging and bagging grains from the bag, bag hanging end detecting means 5 for detecting that the operation of hanging the empty bag 4 to the bag holding device 2 is provided, The shutter 7 provided at the take-out port 6 of the grain tank 1 is opened by the hanging end detecting means 5 detecting the hanging of the bag.

[0005]

According to the present invention, even if a person unfamiliar with the work of attaching the empty bag 4 to the bag holding device 2 takes time by correcting the bag posture, the bag hanging end detecting means 5 detects the bag hanging end. The shutter 7 is not opened until the grain is spilled out of the bag, and if the bag is quickly mounted on the bag holding device 2, the end of the bag hanging is detected early and the opening timing of the shutter 7 is detected. And work efficiency is improved.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. The vertically long machine frame 10 is a machine for cutting large-diameter grains out of the grains supplied to the hopper 11 by the vertical grain sorter.
Is stored in a grain tank 1 provided at the upper part of the container. An outlet 6 opening downward from the grain tank 1
Is provided with a shutter 7 for opening and closing the outlet 6, and an opening solenoid 12 for opening the shutter 7 and a closing solenoid 1 for closing and operating in two stages of a large opening and a small opening.
3 is provided so as to be linked to the detected weight of the measuring device 3. The measuring device 3 is provided below the outlet 6. On the measuring device 3, a mounting table 14 for mounting the bag holding device 2 is placed. At the left and right of the mounting base 14, cylindrical pillars 15 are erected,
The shaft pillar 16 is fitted to the cylindrical pillar 15, and the bag holding device 2 is elastically held at the upper end of the shaft pillar 16 via a spring 17.

[0007] As shown in FIG.
The holding piece 19 is formed in a curved shape toward the inside of the block 18 fitted on the outer surface of the block 6, and a pivoting portion 20 formed below and inside the block 18.
And a roll 22 pivotally supported by the tip of the holding arm 21 presses the holding piece 19 with a spring 2.
3 urges the holding arm 22 to rotate. Reference numeral 24 denotes a lever for rotating the holding arm 22 against the urging force. The empty bag 4 is held between the roll 22 and the holding piece 19. The operation of the opening solenoid 12 and the closing solenoid 13 is controlled by the weight data measured by the measuring device 3, and the operation of the opening solenoid 12 is controlled as shown in FIG. When the empty bag 4 is mounted on the bag holding mechanism 2 in step S1, the weight of the empty bag 4 is measured in step S2, and whether or not the measured weight is the weight of the empty bag 4 in step S3, for example, when the maximum gravity W2 is equal to the standard empty It is determined whether the minimum gravity W2 is about 30% of the standard empty bag 4 with twice the weight of the bag 4.

In step S4, it is determined whether or not the weight W of the weighed empty bag 4 has fallen within a predetermined time ± 0.1W. Weight W while the worker is touching the empty bag 4
Is largely changed, it can be determined that the attachment of the empty bag 4 has been completed by this weight determination. In step S5, an operation command is issued to the opening solenoid 12, and the shutter 7 is opened. In step S6, kernels are put in and weighed in step S7.
If it becomes 3, an operation command is issued to the closing solenoid 13 in step S9, and the shutter 7 closes through the small opening,
Bagging ends. Note that the bag hanging work completion detecting means may be provided with a push button switch instead of the above embodiment and pressed when the bag hanging work is completed.

[Brief description of the drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a partially enlarged front view of the embodiment of the present invention.

FIG. 3 is a flowchart of a shutter opening / closing timing according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grain tank 2 Bag holding device 3 Weighing device 4 Empty bag 5 Hanging completion detecting means 6 Take-out port 7 Shutter

Claims (2)

[Claims] 1. A weighing machine (3) having a bag holding device (2) provided at a lower portion of a grain tank (1), and grains are stored in an empty bag (4) suspended from the bag holding device (2). In the automatic cereal weighing and bagging device in which grains are put into the bag from the tank (1) and bagged, the hanging of the bag detecting that the operation of hanging the empty bag (4) to the bag holding device (2) is completed is finished. A sensing means (5) is provided, and a bag outlet (6) of the grain tank (1) is detected by the bag hanging end sensing means (5).
An automatic cereal weighing and bagging device, characterized in that the shutter (7) provided in the container is opened. 2. When the weight measured by the measuring device (3) becomes substantially the weight of the empty bag (4), it is detected that the empty bag (4) has been suspended from the bag holding device (2). 2. The automatic cereal weighing and bagging apparatus according to claim 1, wherein it is determined that the bag hanging operation is completed when the weight fluctuation falls within a predetermined range.