JPH0648938B2 - Automatic bagging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grain storage bag at a predetermined grain filling position below a grain storage hopper provided with a movable discharge port that is vertically insertable and removable with respect to a bag opening. And a movable delivery port is inserted into the opening of the delivered grain storage bag, and the front and rear side faces of the delivery bag are pressed against the inner surface of the wad by the insertion of the movable delivery port into the opening. A grain filling mechanism that performs grain filling work based on the bag detection results of the front and rear bag opening sensors, a bag discharging mechanism that discharges the filled bag with the opening fastener closed after filling, and a bag cradle that receives the bottom of the bag being filled. And a bag swing mechanism having a filling detection sensor for detecting that the weight received by the bag has reached a certain amount, and a vibrating mechanism for vibrating the bag being filled based on the detection result of the sensor, and the bag feeding device. Mechanism, grain filling mechanism, bag release mechanism, and a sequence controller for sequentially actuating the FukuroYurado mechanism, an automatic bagging system is provided.

[Conventional technology]

Conventionally, the sequence operation may stop when the main power supply is cut off or when the movable discharge port is lowered as shown in Fig. 7 when refueling, etc. Sequence operation was started (for example, Japanese Utility Model Application No. 61-188971).

[Problems to be solved by the invention]

When restarting the sequence operation with the movable discharge port lowered, if only one of the front and rear bag opening sensors detects a bag, the movable discharge port is inserted into the bag opening, and the shutter is released. It was supposed to start the sequence operation to open and open the grain.
As shown in the figure, even if the movable discharge port (5A) is in the lowered state and one bag opening sensor (24) is detecting the bag,
The movable discharge port (5A) may not be inserted into the bag (3), and the rear bag opening sensor may detect the succeeding bag that is next fed to the grain filling predetermined position. Therefore, when the grain is filled in this state, the grain is simply discharged onto the bag pedestal.

An object of the present invention is to provide a device which can prevent the grain from being discharged onto the bag cradle even when the sequence operation is restarted from the state where the movable discharge port is lowered.

[Means for solving problems]

The characteristic configuration according to the present invention is such that when the front and rear bag opening sensors (24), (24) both sense the bag (3), the subsequent sequence operation is continued, and the front and rear bag opening sensors (24), (24) ) Does not detect the bag (3) and the filling bag detection sensor
When (15) does not detect the bag (3), the movable discharge port (5A) is raised and the subsequent bag (3) is fed to the grain filling predetermined position, and the sequence operation is performed. If at least one of the sensors (24), (24) does not detect the bag (3) and the filling bag detection sensor (15) detects the filling bag (3), the movable discharge port ( 5A) is once raised and lowered again, and if the front and rear bag opening sensors (24), (24) both sense the bag (3), the subsequent sequence operation is performed, and (ii) the above At least one of the front and rear bag opening sensors (24), (24) is a bag (3)
If it is not detected, the movable discharge port (5A) is raised and the bag (3) at the grain filling predetermined position is once retracted, and the movable discharge port (5A) is lowered to the grain filling predetermined position again to move back and forth. If the bag opening sensors (24) and (24) both sense the bag (3), the sequence operation described below is performed, and (iii) the bag opening sensor (2
When at least one of (4) and (24) does not detect the bag (3), the movable discharge port (5A) is raised to move the fastener.
It is provided with a sequence control means for closing the (20) and discharging the filling bag (3), and its function and effect are as follows.

[Work]

(A) In the case of the characteristic configuration, it is assumed that the movable discharge port is inserted into the bag opening, and the shutter is opened to perform the sequence operation of filling the grain.

In the case of the characteristic configuration, assuming that the bag does not exist at the grain filling predetermined position, the movable discharge port is raised and the bag is newly fed to the grain filling predetermined position, and the sequence operation is performed from the beginning.

C) In the case of the characteristic configuration, the filling bag detection sensor detects the bag and confirms that the bag is present at the grain filling predetermined position, and at least one of the front and rear bag opening sensors, which should naturally detect the bag, is If the bag is not detected, it is considered that only the rear bag opening sensor is located inside the bag opening.
In this case, try inserting the movable discharge port downward again.
Here, if the front and rear bag opening sensors detect the bag, the subsequent sequence operation is continued, but if one bag opening sensor still does not detect the bag, the bag is stopped at the regular grain filling predetermined position. If not, the movable discharge port is raised, and the bag is once retracted and then fed again to the grain filling position.
Then, the movable discharge port is lowered, and if one of the bag opening sensors still does not detect the bag, the bag is assumed to be filled with a predetermined amount of grain and is released after the fastener is closed, and the sequence operation is first performed. Start from.

〔The invention's effect〕

With the help of bag detection sensor as well as bag opening sensor,
Depending on the case where at least one bag opening sensor does not detect the bag, by moving the movable discharge port up and down, it is possible to adopt the sequence operation mode that matches that situation, and after recovery, as in the past. Since the grain filling work is not started based on the bag detection result of the one bag opening sensor, the grain filling work can be performed more reliably.

〔Example〕

The automatic bagging device has a bag feeding mechanism (A), a grain filling mechanism (B),
The bag discharging mechanism (C) will be explained first, and the bag feeding mechanism (A) will be described in detail. As shown in FIG. 2 and FIG. 3, a pair of left and right bag-supporting rotary shafts (4), (4) are installed, and holes are formed at both left and right ends of these rotary shafts (4), (4). The grain storage bag (3) formed with the members (2) and (2) is inserted and supported through the hole forming members (2) and (2) to support the layers at the standby position. ) Is urged by the spring (6) so that the rotary shafts (4) and (4) are screwed into the threaded portions (4A) at the tips one by one. Grain storage bag fitted to the screw part (4A) by this spring biasing force
(3) is fed to the grain filling predetermined position by the synchronized operation of the motors (M) and (M) that drive both rotary shafts (4) and (4).

Next, the grain filling mechanism (B) will be described in detail. As shown in FIG. 1, a hopper (8) is provided above the grain filling predetermined position.
A grain discharge port (5) is provided at the bottom of the hopper (8), and a grain storage bag (3) is provided at the grain discharge port (5) in the opening (1) and at the discharge port.
A movable discharge port (5A) that moves up and down is provided across (5). The grain discharge port (5) is provided with a first slide-type shutter (7), and this shutter (7) is spring-biased in the closing direction (not shown) and A locking mechanism is provided to resist the open state. Further, below the first shutter (7) and at the lower end of the grain discharge port (5), a pair of left and right second shutters (10) swingably opened and closed around an axis (X) are pivotally supported. Shutter
The tips of (10) and (10) are formed into saw-tooth shapes that occlude each other in the closed state. A chain case (21) equipped with a rotating chain (19) is provided near the grain discharge port (5), and a movable discharge port (5A) is provided for the rotating chain (19).
The first member (16) acting on the bell crank type driving member (5a) for controlling the vertical movement of the first shutter (7), and the operating member (6) linked to the first shutter (7) to open the first shutter (7). Slider attached to the second member (17) acting on 7a) and the fastener (20) provided at the upper opening of the grain bag (3).
Locking arm (1) that locks (9) and closes the fastener (20).
8) and are integrated and attached. Then, with respect to the driving member (5a), the operating member (7a), the slider (9), the first member (16), the second member (17), and the locking arm (18) are controlled by the sequence control device (25). The chain (19) is rotationally controlled so as to operate according to the time chart, and the grain storage bag (3) fed to the grain filling predetermined position is filled.

The bag discharging mechanism (C) will be described. As shown in FIG. 1, a bag cradle (11) for receiving the bottom surface of the bag (3) being filled at the grain filling position is pivotally supported about the longitudinal axis (Y) of the fuselage, and On the back side of the bag cradle (11), a rotating arm (1
2) and a motor (13) for driving this rotating arm (12) are provided to form a bag swinging mechanism (D), and this bag receiving stand
Limit dog (14) biased toward the bag receiving surface of (11)
If the limit dog (14) detects the bag (3) being filled and withdraws below the bag receiving surface and the limit switch (15) as a filling bag detection sensor operates, the motor (13) Is operated for a set time to give vibration to the bag (3) being filled and improve the filling efficiency. When the filling is completed, the fastener (20) is closed, the rotating shafts (4), (4) are synchronized to release the full bag (3), and the succeeding bag (3) is delivered to the grain filling predetermined position. To be done.

There is a limit dog (2) on the front and rear second shutters (10), (10).
Sensors (24) and (24) consisting of 2) and limit switch (23) are provided respectively, and the second shutter (10) is inserted into the bag opening (1) at the same time when the movable discharge port (5A) descends. The sensors (24) are configured as front and rear bag opening sensors (24), (24) in which the front and rear side surfaces of the bag (3) press the inner surface of the bag.

Here, as shown in FIG. 7, the control when the sequence operation is temporarily stopped and restarted with the movable discharge port (5A) being lowered will be described with reference to the flows of FIGS. 5 and 6. .

When the front and rear opening sensors (24), (24) both sense the bag (3), the first shutter (7) is opened to fill the grain (return to the main flow in FIG. 5). .

When at least one (24) of the front and rear bag opening sensors (24), (24) does not detect the bag (3), the state of the filling bag detection sensor (15) is checked, and this sensor (15) ) Does not detect the bag, the movable discharge port (5A) is raised and the subsequent bag (3) is then fed out to the grain filling predetermined position to perform the sequence operation (return to the main flow in FIG. 5). ).

If at least one of the front and rear bag opening sensors (24), (24) does not detect the bag (3) and the filling bag detection sensor (15) detects the filling bag (3), first, , Movable outlet
(5A) is once raised and then lowered again. Therefore, if the front and rear bag opening sensors (24) and (24) both sense the bag (3), the subsequent sequence operation is performed (return to the main flow in FIG. 5). Still, if at least one of the front and rear bag opening sensors (24), (24) does not detect the bag (3), the movable discharge port (5A) is raised and the bag at the grain filling predetermined position is raised.
(3) is once retracted and again fed to the grain filling predetermined position, the movable discharge port (5A) is lowered, and front and rear bag opening sensors (24), (24)
Check the condition of. Here, the front and rear bag opening sensors (24), (24)
If the sensor detects the bag (3), the subsequent sequence operation is performed (return to the main flow in FIG. 5). Also here, if at least one of the front and rear bag opening sensors (24), (24) does not detect the bag (3), it is determined that the bag (3) is full and the movable discharge port (5A) is raised. To close the fastener (20) and release the filling bag (3).

[Another embodiment]

Both the bag opening sensor (24) and the filled bag detection sensor (15) may be pressure-sensitive sensor type and are not limited to limit switch type.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of the automatic bagging apparatus according to the present invention. Fig. 1 is a side view showing a filling state, Fig. 2 is an overall side view, Fig. 3 is an overall front view, and Fig. 4 is a control block diagram. FIG. 5 is a main flow diagram of sequence control, FIG. 6 is an interrupt flow diagram at restart, and FIG. 7 is a side view showing a state in which the storage bag is removed with the movable discharge port lowered. . (A) …… Bag feeding mechanism, (B) …… Grain filling mechanism, (C) ……
Bag discharging mechanism, (D) …… Sequence control device, (1) …… Bag opening, (3) …… Grain storage bag, (5A) …… Movable discharge port, (11)
…… Bag holder, (12) …… Vibration mechanism, (15) …… Filling bag detection sensor, (20) …… Fastener, (24) …… Bag opening sensor,
(25) …… Sequence control device.

Front page continuation (72) Inventor Takashi Iwakawa 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Factory (72) Inventor Mamoru Yasumatsu 64, Ishizukitamachi, Sakai City Osaka Prefecture

Claims (1)

[Claims] 1. A grain storage bag (3) is placed at a predetermined grain filling position below a grain storage hopper (8) provided with a movable discharge port (5A) that is vertically movable in and out of the bag opening (1). Feeding bag feeding mechanism (A) and opening (1) of the fed grain storage bag (3)
Insert the movable discharge port (5A) into the inside of the bag, and insert the movable discharge port (5A) into the opening so that the front and rear side faces of the feeding bag (3) press the inner face of the bag respectively.
4), a grain filling mechanism (B) that performs grain filling work based on the bag detection results of (24), and a bag discharging mechanism (C that discharges the filling bag with the opening (1) fastener (20) closed after filling (C) ) And the bag being filled
A bag receiving base (11) for receiving the bottom of (3) and a filling bag detection sensor for detecting that the weight of the receiving has reached a certain amount.
(15) and a bag swinging mechanism (D) equipped with a vibrating mechanism (12) for applying vibration to the bag (3) being filled based on the detection result of the sensor (15), and the bag feeding mechanism (A). ) A grain filling mechanism (B), a bag discharging mechanism (C), a sequence control device (25) for sequentially operating the bag swinging mechanism (D), and an automatic bag filling device provided with the movable discharge port ( When the sequence control that was stopped in the state that it was lowered so that (5A) was inserted into the bag opening (1) is restarted, the front and rear bag opening sensors (24), (24) are both ) Is detected, the subsequent sequence operation is continued, and at least one of the front and rear bag opening sensors (24), (24) does not detect the bag (3) and the filling bag detection sensor.
When (15) does not detect the bag (3), the movable discharge port (5A) is raised and the subsequent bag (3) is fed to the grain filling predetermined position, and the sequence operation is performed. If at least one of the sensors (24), (24) does not detect the bag (3) and the filling bag detection sensor (15) detects the filling bag (3), the movable discharge port ( 5A) is once raised and then lowered again, and if the front and rear bag opening sensors (24), (24) both sense the bag (3), the subsequent sequence operation is performed, and (ii) At least one of the front and rear bag opening sensors (24), (24) is the bag (3)
If it is not detected, the movable discharge port (5A) is raised and the bag (3) at the grain filling predetermined position is once retracted, and the movable discharge port (5A) is lowered to the grain filling predetermined position again to move back and forth. If the bag opening sensors (24) and (24) both sense the bag (3), the sequence operation described below is performed, and (iii) the bag opening sensor (2
When at least one of (4) and (24) does not detect the bag (3), the movable discharge port (5A) is raised to move the fastener.
An automatic bag filling device equipped with sequence control means for closing the (20) and discharging the filled bag (3).