JPH0585401B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to an automatic bag filling device that discharges stored materials such as granules and powder into a bag from a discharge port and then closes the bag. Regarding control method.

(b) Summary of the Invention To summarize, the method for controlling the automatic bagging device according to the present invention can be summarized as follows: When the power is turned on and the shutter is left open and the operation is stopped, a predetermined amount of By executing each operation from the operation of waiting for the stored items to be stored in the bag, if the previous bagging operation was interrupted while the stored items were being discharged, the interrupted bagging operation can be resumed. This prevents the bag from being released when the bagging operation is resumed, and prevents the items stored in the bag from spilling outside. In addition, if the shutter has finished closing when the power is turned on, the discharge port will be raised once to prevent damage to the discharge port if it is lowered before starting work. This is what I did.

(c) Prior Art In order to simplify the bagging operation of stored objects such as granules and powders, there have conventionally been automatic bagging devices that automate the processing operations involved in the bagging operation. In this automatic bag filling device, the process is as follows: unwinding the bag → lowering the discharge port →
A plurality of processing operations are performed continuously, such as opening the shutter → waiting until the amount of stored items reaches a predetermined amount → closing the shutter → raising the discharge port → sealing the bag → discharging the bag. In this case, sequence control is generally performed in which after one processing operation is completed, the next processing operation is sequentially executed. Once the above processing operations have completed one cycle, the first processing operation is performed, and the bagging operation is performed continuously on a plurality of bags.

(d) Problems to be Solved by the Invention However, with conventional automatic bagging equipment, if the power is turned off while the work is interrupted at any point in a series of processing operations due to a failure of other equipment or the convenience of the operator. , the next time the power is turned on, the first processing operation will be executed. For this reason, for example, if the discharging operation of the stored object is interrupted with the discharge port lowered and the shutter open, the next time the power is turned on, the bag will close, the shutter will close, and the discharge port will rise. There were problems in that the next bag was fed out without being fed out, causing damage to the device, and the items packed in the bag before the discontinuation spilling outside due to the release of the bag.

The purpose of this invention is to check the operating state of the device at the start of bagging work, and if the previous work was interrupted while discharging the stored items, the current work is executed from the discharging operation, To provide a control method for an automatic bagging device that can prevent damage to the device and spillage of stored items by starting from the upward movement of the discharge port when the work is interrupted in any other state. .

(e) Means for Solving Problems The automatic bag filling device control method of the present invention includes the following steps: setting bags, lowering the discharge port, opening the shutter, waiting until the amount of stored items reaches a predetermined amount, and closing the shutter. , a control method for an automatic bagging device in which a discharge port is raised and a bag is discharged in this order, and a predetermined amount of stored material is discharged from a discharge port into a bag while a shutter is open, the power being turned on. It detects which of the above-mentioned operations has been completed when the power is turned on, and if the shutter opening operation has been completed when the power is turned on, the storage amount of the stored items is determined. Each of the above operations is executed sequentially from the standby operation until the amount is reached, and if the shutter closing operation has been completed when the power is turned on, each of the above operations from bag setting is executed after the discharge port raising operation is executed. It is characterized by sequentially executing the steps.

(f) Operation In the automatic bag filling device control method of the present invention, when the power is turned on, it is checked which operation was completed in the previous operation and the operation was stopped, and when the shutter opening operation is completed. If the previous operation was stopped at The items stored inside will not spill out.

On the other hand, if the previous operation was stopped with the shutter closing operation completed when the power was turned on, the discharge port raising operation is executed and then each operation is sequentially executed from the bag setting operation. Therefore, even if the discharge port has been manually lowered after the previous operation, the bag setting operation is executed after raising it, and the bags will not collide with the discharge port when setting the bags. .

(g) Embodiment FIG. 1 is a perspective view showing an automatic bagging device to which the control method of the present invention is applied. Moreover, FIG. 2 is a front view of the automatic bagging device.

An automatic bagging device 1 is mounted on a combine harvester, and stores grains harvested by a threshing device into a paddy bag 2.
The automatic bagging device 1 includes a discharge section 3, a feeding section 4, and an operating section 5. The discharge section 3 includes a hopper 31, a shutter 32, a discharge port 33, and a fork 34. The hopper 31 stores the grains harvested by the threshing device. The shutter 32 selectively opens the space between the hopper 31 and the discharge port 33. The discharge port 33 is vertically movable and inserted into the rice bag 2.

A pair of forks 34 provided before and after the discharge port 33 rotate forward and backward, respectively, before the discharge port 33 descends. At this time, the opening of the rice bag 2 is expanded in the front-rear direction. The discharge port 33 is inserted into the inside of the rice bag 2 through the opening expanded by the fork 34. Each fork 34 is equipped with a front fork sensor S and a rear fork sensor S4. The front fork S3 and the rear fork sensor S4 come into contact with the inner surface of the paddy bag 2 and detect it. Therefore, the front fork sensor S
3 and rear fork sensor S4 are both turned on, it can be determined that the discharge port 33 has been inserted into the rice bag 2.

The feeding section 4 has feeding shafts 41, 42 and a feeding shaft motor M.
2, M3 and feeding sensors S1, S2. The feeding shafts 41 and 42 have spiral grooves 41a and 42a formed on their circumferential surfaces, and are rotatably supported in a cantilever manner at the rear. Therefore, the front ends of the feeding shafts 41 and 42 are open,
Eyelets 21 and 22 of the rice bag 2 are fitted onto this front end. Feeding shafts 41, 4 through eyelets 21, 22
The eyelets 21 and 22 of the paddy bag 2 located furthest forward among the paddy bags 2 held by the paddy bags 2 are engaged with spiral grooves 41a and 42a formed in the feeding shafts 41 and 42, respectively. When the feed-out shaft motors M2 and M3 rotate normally in this state, the paddy bag 2 moves forward. Feeding shaft 41, 4
The left and right feeding sensors S are located at the top near the front end of 2.
1 and S2 are provided. This feeding sensor S
1, S2 detects the eyelets 21 and 22 of the paddy bag 2.

The actuating section 5 includes a multi-chain 51, a chain motor M1, an actuator 52, and a discharge port elevating section 5.
3 and a shutter opening/closing section 54. Multi-chain 51 has sprocket 55,5
It is hung at 6. The rotational force of the chain motor M1 is supplied to the sprocket 55. The actuator 52 is fixed to a part of the multi-chain 51, and contacts the discharge port elevating section 53 and the shutter opening/closing section 54 to operate them. In addition, the hand 2 of the fastener 23 sewn to the opening of the paddy bag 2
4 to close the fastener.

FIG. 3 is a block diagram of the control section of the automatic bagging apparatus.

The CPU 31 has a right feeding sensor S1, a left feeding sensor S2,
Detection data from the front fork sensor S3, the rear fork sensor S4, and the paddy sensor S5 are input.
A motor driver 65 is connected to the CPU 61 via an I/O interface 64, and a chain motor M1, a right feeding shaft motor M2, and a left feeding shaft motor M3 are connected to the motor driver 65. The amount of rotation of the chain motor M1 is detected by the potentiometer 56, and its output voltage is sent to the A/D converter 66 as rotation angle data.
It is input to the CPU 61. CPU61 is each sensor S
Detection data of 1 to S5 and potentiometer 5
According to the rotation angle data from 6, control data is output to the motor driver 65 according to a program written in advance in the ROM 62. The motor driver 65 drives the chain motor M1, the right feeding shaft motor M2, and the left feeding shaft motor M3 in accordance with this control data. Furthermore, the memory area MA1 of the RAM 63 is allocated to the timer T.

FIG. 4 is a flowchart showing the processing procedure of the control section of the automatic bagging device according to the embodiment of the present invention.

When the power is turned on, it is checked whether it is in automatic mode (n1), and if it is in automatic mode, the output data of the potentiometer 56 is read out (n2). Thereby, the position where the actuator 52 is stopped is detected. Actuator 5
2 is between the position P5 and the position P2 shown in FIG. 5, or the initial position P1 shown in the same figure.
(n3, n4).

When the actuator 52 is at the initial position P1, the feeding shaft motors M2 and M3 are rotated in the normal direction until the feeding sensors S1 and S2 detect the paddy bag 2 (n10 to n12). As a result, the rice bag 2 is fed out below the discharge port 33. From this state, the chain motor M1 is rotated forward (n13), and the actuator 52 moves in the direction of arrow A shown in FIG.
The actuator 52 moves in the direction of arrow A and engages with the ejection port elevating section 53, thereby lowering the ejection port 33. Fork sensors S3 and S4 within a predetermined time t1
When turned on (n14, n25), it is determined that the discharge port 33 has been properly inserted into the rice bag 2, and the chain motor M1 continues to rotate normally. As a result, the actuator 52 engages with the shutter opening/closing portion 54 and then reaches the terminal position P2 shown in FIG. 5 (n15).
By moving this actuator 52, the shutter 3
2 is opened, and grains are discharged from the hopper 31 into the rice bag 2 via the discharge port 33.

When the actuator 52 reaches the terminal position P2, the chain motor M1 is reversed, and the actuator 5
2 is stopped at position P5 (n16 to n1
8). Even in this state, the shutter 32 remains open and grains are continuously discharged. When the inside of the paddy bag 2 is full of grains,
The paddy sensor S5 provided at the discharge port 33 is turned on (n19). At this time, the chain motor M1 is reversed until the actuator 52 reaches the terminal position P3 in the direction of arrow C shown in FIG. 5 (n20, n21).
During this time, the bag fastener 23 is closed. When the actuator 52 reaches the terminal position P3, the chain motor M1 is rotated forward until the actuator 52 reaches the initial position P1 (n22~
n24). By repeating steps n10 to n24 above, the paddy bags 2 supported on the feeding shafts 41 and 42 are fed out one after another, filled with grains, and then closed and released.

When the previous bagging operation was interrupted midway and the actuator 52 is located between positions P5 and P2, the chain motor M1 is rotated forward to move the actuator 52 to the terminal position P2 (n3 →n13→n15). By executing this process, if the shutter 32 is open when the power is turned on, that state is maintained and the grains are discharged from the discharge port 33 into the rice bag 2. On the other hand, if the previous bagging operation was interrupted when paddy bag 2 became full, n3 → n13 and then n19
Immediately, the paddy sensor S5 is turned on and the shutter 32 is closed.

Further, if the actuator 52 is not between positions P5 and P2 or not at the initial position P1, the chain motor M1 is rotated forward to move the actuator 52 to position P4 (n5, n6),
Next, the chain motor M1 is reversed to stop the actuator 52 at the initial position P1 (n7
~n9). By executing this process, the actuator 52 engages with the ejection port elevating means 53 from the direction of arrow B, and the ejection port 33 is raised. Therefore, if the operator had manually lowered the discharge port 33 after the previous bagging operation was completed, it is possible that the paddy bag 2 that was first fed out during the current bagging operation would collide with the discharge port 33. This prevents damage to the equipment.

In this embodiment, immediately after the power is turned on, it is determined whether or not the automatic mode is set (n1).
If the automatic mode is selected at this time, even if the manual switch is operated, the system will not shift to the manual mode. As a result, the processing order of the bagging operation being executed in the automatic mode is not disrupted, and the bagging operation can be performed accurately. Further, in this embodiment, when the actuator 52 is between the position P5 and the position P2, the work is always started from a standby operation until the amount of stored items reaches a predetermined amount. are positions P5 and P2
The work may be started from the above-mentioned standby operation only when the fork sensors S34 and/or either one of the fork sensors S34 and S4 detects the paddy bag. By controlling in this way,
It is possible to prevent grains from being discharged when the paddy bag related to the interrupted operation has already been manually removed and there is no paddy bag 2 below the discharge port.

(h) Effects of the Invention According to this invention, when the power is turned on and the shutter opening operation has been completed,
The execution of each operation starts from the standby operation until the stored amount of the stored items reaches a predetermined amount, so if the previous bagging operation is interrupted while the stored items are being discharged, the operation related to that operation The items to be stored can be continuously discharged into the bags during the current bagging operation. As a result, the bag involved in the interrupted bagging operation is not released when the bagging operation is resumed, and the items stored in the bag are not spilled outside, and the bagging operation can be carried out accurately. can be done.

In addition, if the shutter has finished closing when the power is turned on, the bagging operation will be performed after the discharge port is raised, so if the discharge port is lowered manually while the work is interrupted. When the bag is packed, there is no chance of this discharge port colliding with the bag that is fed out during the next bagging operation.
Damage to the device can be prevented.

[Brief explanation of drawings]

1 and 2 are an external perspective view and a schematic front sectional view, respectively, of an automatic bagging device to which the control method of the present invention is applied, FIG. 3 is a block diagram of the control section of the automatic bagging device, and FIG. The figure is a flowchart showing the processing procedure of the control section of the automatic bagging apparatus, and FIG. 5 is a schematic diagram showing the operation of the main parts of the automatic bagging apparatus. 1... automatic bagging device, 2... paddy bag, 32...
Shutter, 33...Discharge port.

Claims (1)

[Scope of Claims] 1. Each operation of bag setting, discharge port lowering, shutter opening, waiting until the amount of stored items reaches a predetermined amount, shutter closing, discharge port raising, and bag discharge are executed in this order. , in a method of controlling an automatic bagging device that discharges a predetermined amount of stored items from a discharge port into a bag while the shutter is open, which of the above-mentioned operations has been completed when the power is turned on. If the shutter opening operation is completed when the power is turned on, sequentially execute each of the above operations from a standby operation until the amount of stored items reaches a predetermined amount; A method for controlling an automatic bag filling device, characterized in that if the shutter closing operation has been completed when the power is turned on, each of the above-mentioned operations is sequentially executed from the bag set after the discharge port raising operation is executed. .