JPS63294305A - Automatic bag filling apparatus - Google Patents

Abstract

PURPOSE:To shorten operation time and enhance operational efficiency by again effecting fork action of a discharge outlet once the same is unable to be inserted in a bag so as to change the bag conditions and the relative position between the bag and discharge outlet, thereby inserting the discharge outlet exactly in the bag upon reentry. CONSTITUTION:In the event that fork sensors S3 and S4 should not turn on even if a predetermined time has elapsed after the downward movement of a discharge outlet 33, fork shaft motors M2 and M3 are reversely rotated after the upward movement of the discharge outlet and an unhulled rice bag 2 is moved backward until fork sensors S1 and S2 are turned off. Furthermore, from this condition the fork shaft motors M2 and M3 are rotated forward to bring again the unhulled rice bag 2 down to a position below the discharge outlet 33. In doing so, the conditions of the unhulledcrice bag 2 and the relative positional relationship between the unhulled rice bag 2 and the discharge outlet 33 are changed. Such correction of the conditions of the unhulled rice bag 2 and the positional relationship between the unhulled rice bag 2 and the discharge outlet 33 enhance the possibility of the discharge outlet 33 being inserted in the bag upon the subsequent downward movement of the discharge outlet 33.

Description

DETAILED DESCRIPTION OF THE INVENTION (Al Industrial Field of Application) The present invention relates to an automatic bag filling device for discharging granules or powder into a bag from a discharge port and then closing the bag.

(b) Summary of the Invention In summary, the automatic bag filling device according to the present invention temporarily retreats the bag by the bag retracting means when the discharge outlet is not inserted into the bag that has been fed out so as to face the discharge outlet. after,
Pay out the bag again and insert the discharge port into the bag.
This is to prevent repeated malfunctions.

(C1 Conventional technology) In a device that automates the bagging operation of storing objects such as granules and powder in bags, the following steps are used: unwinding of the bag - lowering of the discharge port - opening of the shell - closing of the shell - The lifting-closing of the bags takes place continuously.In such automatic bagging machines,
The bag is fed out by the feeding section to a position facing the discharge port. A discharge port is inserted into the inside of the unrolled bag and the stored items are discharged into the bag.At this time, if the discharge port is not inserted into the bag securely, the stored items will fall outside and cause the bag to be packed. Work efficiency will decrease. Therefore, conventional automatic bag filling devices are equipped with a detection means for checking whether or not the discharge port [1] has been inserted correctly into the inside of the dispensed bag, and this detection means determines that the discharge port has not been inserted into the bag. When this happens, the discharge port is returned to its initial position and the operation of inserting the discharge port is repeated again. If the discharge port is not inserted into the bag even after this insertion operation is repeated a predetermined number of times, the bag is ejected and the next bag is sent out (d)
Problems to be Solved by the Invention However, in the above-mentioned conventional automatic bag filling apparatus, only the lowering operation of the discharge outlet is repeated for bags in which the discharge outlet has not been inserted. The condition of the bag and the relative positional relationship between the bag and the discharge port did not change. In addition, if the outlet is not inserted into the bag, the bag is often not in a normal condition, and even if you leave such an abnormal bag as it is and repeatedly insert the outlet, the outlet will not be inserted into the bag. It was not possible to insert the bag, and the bagging process was prolonged, but no effect was obtained. Furthermore, bags whose discharge ports are not inserted even after a predetermined number of repetitions are discharged without storing anything therein, resulting in a reduction in work efficiency.

The purpose of this invention is to change the state of the bag and the relative relationship between the bag and the discharge port by re-feeding the bag once the discharge port has not been inserted into the bag, and to re-adjust the discharge port. To provide an automatic bag filling device which allows a discharge port to be accurately inserted into a bag at the time of insertion, thereby reducing work time and improving work efficiency.

(Means for Solving Problem e1) The automatic bag filling device of the present invention includes a bag dispensing means for dispensing the bag below the discharging port, and a discharging port for lowering the discharging port after the bag is dispensed by the bag dispensing means. An automatic bag filling device comprising: a lowering means, a bag retracting means for raising the discharge port and retracting the bag when the discharge port lowered by the discharge port lowering means does not enter the bag; The present invention is characterized in that a discharge port re-lowering means is provided for activating the bag feeding means and the discharge port lowering means after the bag is retracted by the means.

(f) Function In the automatic bag filling apparatus of the present invention, when the discharge port is not inserted into the bag fed out by the bag feeding means, the bag is once retreated by the bag retreating means. Thereafter, the bag is once again delivered below the discharge port by the bag delivery means, and the discharge port is lowered relative to the bag by the discharge port lowering means. At this time, the bag dispensing means has performed a two-change operation for the same bag, and the state of the bag and the relative positional relationship between the bag and the discharge port change compared to the previous time when the discharge port was lowered. Therefore, the insertion operation of the discharge port is performed under a different situation from the previous one.

fg) Embodiment FIG. 1 is a perspective view showing an automatic bagging device which is an embodiment of the present invention. 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.
Consisting of The discharge section 3 includes a hopper 31, a shutter 32, a discharge port 33, and a fork 34. The hopper 31 stores grains harvested by the threshing device. The shutter 32 selectively opens the space between the hopper 31 and the discharge port 33. Discharge port 3
3 is movable in the vertical direction and is inserted into the inside of the paddy bag 2.

A pair of forks 34 provided before and after the discharge port 33
are rotated forward and backward, respectively, prior to the lowering of the discharge port 33. 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 interior 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 sensor s3 and the rear fork sensor s4 come into contact with the inner surface of the paddy bag 2 and detect it. Therefore, it can be determined that the discharge port 33 has been inserted into the rice bag 2 when both the front fork sensor S3 and the rear fork sensor s4 are turned on.

The feeding unit 4 has feeding shafts 41, 42, feeding shaft motors M2, M3.
and feeding sensors Sl and S2. The delivery 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 delivery shafts 41 and 42 are open, and the eyelets 21 and 22 of the paddy bag 2 are fitted onto the front ends. Payout shaft 41.42 via eyelet 21, 22
The eyelet 21.22 of the paddy bag 2 located furthest forward on the back of the paddy bag 2 held by the paddy bag 2 engages with the spiral grooves 412, 42a formed in the feed-out shaft 41.42, and in this state, the feed-out shaft motor M2. When M3 rotates forward, the paddy bag 2 moves forward. Left and right feeding sensors Sl are located at the upper part near the front end of the feeding shaft 41, 42.

S2 is provided. The feeding sensors S1 and S2 detect the eyelets 21 and 22 of the paddy bag 2.

The operating section 5 includes a multi-chain 51 and a chain motor M1.
, an actuator 52, a discharge port elevating section 53, and a shirt opening/closing section 54. multi chain 5
1 is suspended on sprockets 55 and 56. Sprocket 55 is supplied with the rotational force of chain motor M1. The actuator 52 is fixed to a part of the multi-chain 51 and comes into contact with the discharge port elevating section 53 and the shaft opening/closing section 54 to operate them. Moreover, it engages with the hand 24 of the fastener 23 sewn to the opening of the rice bag 2 to close the fastener.

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

The CPU 31 is provided with the following information via the I10 interface 34.
Detection data from the right feed sensor S1, left feed sensor S2, front fork sensor S3, rear fork sensor S4, and paddy sensor S5 are input. A motor driver 65 is connected to the CPU 61 via an I10 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 rotation amount of the chain motor M1 is detected by the potentiometer 56, and the output voltage is detected by the A/D converter 6.
6 and is input to the CPU 61 as rotation angle data.

The CPU 61 controls the RO according to the detection data of each sensor Sl to S5 and the rotation angle data from the potentiometer 56.
Control data is output to the motor driver 65 according to a program written in advance in M62. The motor driver 65 operates the chain motor M according to this control data.
1. Drive the right feeding shaft motor M2 and the left feeding shaft motor M3. Furthermore, the memory area MAL 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.

After the power is turned on, the actuator 52 is located at the initial position P1 shown in FIG. From this state, the feeding shaft motor M2. M3 rotates forward (nl), and the paddy bag 2 is fed out.

When the feeding sensor Sl, 32 is turned on, the feeding shaft motor M2.
M3 stops (n2, n3). As a result, the rice bag 2 is delivered to a position facing the discharge port 33. Next, the chain motor M1 is rotated forward (n4). Due to the forward rotation of the chain motor M1, the actuator 52 moves in the direction of arrow A shown in FIG. 5, engages with the discharge port elevating portion 53, and lowers the discharge port 33. Fork sensor S3. When S4 is turned on, the chain motor M1 continues to rotate normally until the actuator 52 reaches the end position P2 in the direction of arrow A shown in the fifth rotation (n4 to n7).
．． n14). This time t1 is sufficient time for the discharge port 33 to descend to the lowest position. By moving the actuator 52 to the terminal position P2 as described above, the actuator 52 engages with the shutter opening/closing portion 54 and opens the shutter 32. As a result, grains are discharged from the hopper 31 into the rice bag 2 through the discharge port 33.

When the grains continue to be discharged and the paddy bag 2 is full, the discharge port 33
The paddy sensor S5 provided inside turns on (n8).

At this time, the chain motor M1 is reversed and the actuator 5
2 in the direction of arrow B shown in FIG. 5 (n9). At this time, the actuator 52 engages with the shutter opening/closing section 54 and the ejection opening/lowering section 53 to close the shutter 32 and raise the ejection opening 33. After this, the reverse rotation of the chain motor M1 continues, and the actuator 52 moves in the direction of arrow C shown in FIG. At this time, the actuator 52 engages with the hand 24 of the fastener 23 sewn to the opening of the rice bag 2, and moves together with the hand 24 to the terminal position P3 in the direction of arrow C shown in FIG. As a result, the fastener 23 is closed and the paddy bag 2 is closed. When the actuator 52 reaches the terminal position P3 (nlO), the chain motor M1 is rotated forward until the actuator 52 reaches the initial position P1 (n1) to n13). The above steps n1 to n13 are processing procedures in normal bagging work, and steps n1 to n13 are performed continuously unless a failure or inconvenience occurs. Further, the full and closed paddy bag 2 is discharged to the outside from the dispensing shafts 41 and 42 when the dispensing motors M2 and M3 are rotated in the normal direction in the next nl.

At n14, fork sensor S3. When the predetermined time t1 elapses without S4 being turned on, the actuator 52
chain motor M1 until it reaches the initial position P1.
(n15 to n17). As a result, the discharge port 3
3 rises and returns to the initial position. Next, the feeding sensor Sl,
The feeding shaft motor M2. until S2 is turned off. Reverse M3 (n18-n20). As a result, the paddy bag 2, which has been once fed out below the discharge port 33, is once retreated. After this, n
1 to n3, the paddy bag 2 is again fed out below the discharge port 33,
The chain motor M1 is rotated forward (n4) to lower the discharge port 33. In the above, n1 to n3 are the feeding shafts 41, 4
2. Feeding shaft motors M1, M3 and feeding sensors Sl, S
2 corresponds to the bag feeding means of the present invention, and n4. n5
．． n14 also corresponds to the discharge port lowering means, n, 15
~n20 also corresponds to the bag retraction means, n20→n1~
Similarly, n5 corresponds to the ejection port re-lowering means. As described above, according to this embodiment, even if the predetermined time t1 elapses after the discharge port 33 is lowered, the fork sensor S3. S4
is not turned on, after raising the discharge port, the feeding shaft motor M2. M3 is reversed and the paddy bag 2 is moved backward until the feeding sensors Sl and S2 are turned off. Furthermore, from this state, the feeding shaft motor M2. M3 is rotated in the normal direction to position the rice bag 2 below the discharge port 33 again. As a result, the state of the paddy bag 2 and the relative positional relationship between the paddy bag 2 and the discharge port 33 change. By correcting the condition of the paddy bag 2 and the positional relationship between the paddy bag 2 and the discharge port 33 in this way, the possibility that the discharge port 33 will be inserted into the bag when the discharge port 33 is lowered next time is increased. In addition, in this embodiment, the feeding sensor S1 that detects the paddy bag 2,
The feeding shaft motor M2. until S2 is turned off. Although M3 was reversed, the feeding shaft motor M2. M3 may be reversed for a certain period of time. In addition, in this embodiment, the discharge port 33 is connected to the paddy bag 2.
The discharge port re-lowering means is continuously enabled until the discharge port re-lowering means is inserted into the paddy bag 2. However, if the discharge port 33 is not inserted into the paddy bag 2 even after the discharge port re-lowering means is activated a predetermined number of times. Then, the bagging operation for that paddy bag 2 may be completed, and the next paddy bag 2 may be fed out.

(h) Effects of the Invention According to this invention, if the discharge port is not inserted into the bag when the discharge port is lowered, the bag is temporarily retreated by the bag retreating means, and the discharge port re-lowering means The feeding of the bag and the lowering of the discharge port are repeated again. In this manner, the bag is once retracted before the discharge section is lowered and then fed out again, so that the condition of the bag and the relative positional relationship between the bag and the discharge port change due to changes in the feeding condition.

Therefore, when the discharge port is lowered for the second time or later, there is a high possibility that the discharge port will be inserted into the bag, and it is possible to prevent an empty bag from being discharged. This makes it possible to reduce the time required for bagging work and improve work efficiency.

FIG. 3 is a block diagram of the control section of the automatic bagging device, and FIG. 4 is a flowchart showing the processing procedure of the control section of the automatic bagging device.
FIG. 5 is a schematic diagram showing the operation of the main parts of the automatic bagging device.

2-paddy bag, 33-discharge port, 41.42-feeding shaft, M2. M3-feeding shaft motor, Sl, S2-feeding sensor, S3. S4 fork sensor.

Claims (1)

[Claims] (1) In an automatic bag filling device comprising a bag dispensing means for dispensing the bag below the dispensing port, and a dispensing port lowering means for lowering the dispensing port after the bag is dispensed by the bag dispensing device, the dispensing port A bag retracting means for raising the discharge port and retracting the bag when the discharge port lowered by the lowering means does not enter the bag, and a bag dispensing means and a discharge port lowering means after the bag is retracted by the bag retracting means. An automatic bagging device comprising: a discharge port re-lowering means for activating the discharge port re-lowering means;