JPH02258531A - Automatic bagging machine - Google Patents

Abstract

PURPOSE:To prevent a bag filled with grains from being discharged without closing a fastener by a method wherein when a bag filled with grain exists at the time of control operation, operation is started from closing of a bag opening. CONSTITUTION:Based on the respective information from an operation position detecting sensor S6, a bag detecting sensor S4 and a bag feeding detecting sensor S1, if an operating means is at the initial position at the time of control operation start, a detecting means 101 for detecting the existence of a bag filled with grains detects the existence of the bag at the grain filling position, operation is started from the closing of a bag opening. That is, after performing fastening for operating a closing means for closing a fastener, arm initial position setting is performed for restoring an engaging arm to the initial position so that an unclosed bag may not be discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a bag dispensing means for dispensing a grain storage bag equipped with a fastener for closing an opening to a grain filling position, and a method for filling the dispensing bag with grain. A filling means for closing a zipper of the bag, a closing means for closing a zipper of the bag, and a bag releasing means for releasing the bag, and one operating means for operating the filling means and the closing means is provided with The filling means is switched to a filling operation state by a normal operation, the filling means is switched to a filling stop state by a reverse operation toward the initial position, and the closing means is operated to close by a reverse operation toward a side away from the initial position. The bag unwinding means, the filling means, the closing means, and The present invention relates to an automatic bag filling device provided with a control means for controlling the operation of each of the bag discharging means.

[Conventional technology]

This type of automatic bagging device described above is configured to automatically pack grain into bags, close the zipper at the opening, and then release the bag, but due to malfunction etc.
It may stop in the operating state between the time when the bag is fed out and the time when the bag is completely discharged.

Therefore, conventionally, when the control means starts the control operation, the operating means is at the initial position, and the detection means for detecting the presence of a bag filled with grain at the grain filling position detects the presence of the bag. In the previous patent application, it was determined that the zipper of a bag filled with grain was blocked and the grain was waiting to be released, and the control operation was started from the bag release operation (as disclosed in the patent application previously proposed by the present applicant). (See No. 1981-8112).

[Problem to be solved by the invention]

However, since the operating means operates in the forward and reverse directions, when the operating means is operated in the reverse direction to close the fastener,
If the operating means stops operating near the initial position,
When the control is resumed, the operating means is at the initial position even though the fastener is not closed, and the detection means detects the presence of a bag filled with grain at the grain filling position. state.

As a result, there is a risk that the bag filled with grain may be released without the zipper being closed.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to prevent bags filled with grains from being released without the zipper being closed.

[Means to solve the problem]

The automatic bag filling device according to the present invention includes a bag feeding device that feeds out a grain storage bag equipped with a fastener for closing an opening to a grain filling position, a filling device that fills the fed bag with grain, and A closing means for closing the bag and a bag releasing means for releasing the bag are provided, and one operation means for operating the filling means and the closing means causes the filling means to perform the filling operation by normal operation from an initial position. the filling means is switched to a filling stop state by a reverse operation toward the initial position, and the closing means is operated to close by a reverse operation toward a side away from the initial position, and the bag is fed out. , controlling the operations of the bag feeding means, the filling means, the closing means, and the bag discharging means so that filling of the grain, closing of the bag opening, and discharging the bag are performed in this order. The system is equipped with a control means, the characteristics of which are as follows.

That is, when the control means starts the control operation, the operating means is at the initial position, and the detection means for detecting the presence of a bag filled with grain at the grain filling position detects the presence of the bag. Another feature of the present invention is that the operation is started when the bag opening is closed.

[For production]

In other words, if a bag filled with grain is present at the start of the control operation, by starting the operation with the bag opening closed, the bag filled with grain is released without the zipper being closed. We will make sure that this does not happen.

〔Effect of the invention〕

As a result, it has become possible to accurately prevent the bag filled with grains from being released without the zipper being closed.

〔Example〕 Embodiments of the present invention will be briefly described below with reference to the drawings.

As shown in FIG. 5, the automatic bagging device includes a bag unwinding means (A) for unwinding a grain storage bag (2) equipped with a zipper (1) that closes the opening to a grain filling position; A filling means (B) for filling the bag (2) with grain, and a closing means (C) for closing the zipper (1) of the bag (2).
, a bag discharging means (D) for discharging the bag (2), and one operating means (E) for operating the filling means (B) and the closing means (C), and a bag discharging means (
A), filling means (B), closing means (C) and bag releasing means (D) are each configured to operate in that order.

However, as will be described in detail later, the operation means (E) switches the filling means (B) to the filling operation state by normal operation from the initial position, and switches the filling means (B) to the filling operation state by reverse operation toward the initial position. ) is switched to the filling stop state, and the closing means (
C) (see Figure 4)
.

Next, the configuration of each means will be explained in detail based on FIGS. 5 to 8.

To explain the bag feeding means (A), a pair of left and right bag supporting rotating shafts (4) that support the bag (2) are mounted on a support frame (3) provided in a horizontal position. The electric motor (Ml) is attached in a cantilevered manner so that the left and right sides can be rotated forward, reversed and stopped freely, and on these rotating shafts (4), a pair of wheels are formed at both left and right ends near the opening of the bag (2). The support hole (5) is inserted through and supported.

A spiral groove (4A) that engages with the support hole (5) of the bag (2) is formed at the tip of the rotating shaft (4), and
A bag pusher (7), which is biased by a spring (6) to push out the bag (2) toward the distal end of the rotation shaft (4), is attached to the support frame. (3) and the inserted and supported bag (2).

That is, by driving the electric motor (Ml) in normal rotation while simultaneously supporting a plurality of bags (2) on the rotating shaft (4), the bags (2) supported on the leading edge side are It is configured such that the bag (2) that has been fed out can be returned to its original position by being sequentially fed out to the grain filling position and then driven in reverse.

Also, the bag (2) has its support hole (5) and the spiral groove (4).
In order to prevent it from being lifted upward due to abnormal fitting with A), the holding frame (8) that acts on the upper edge of the opening of the bag (2) is moved in the axial direction of the rotating shaft (4). The rotary shaft (4) is fixed in a cantilevered manner to the base end (4B) of the rotation shaft (4) so as to be positioned along the axis and above the rotary shaft (4).

The bag (2) is attached to the tip of the holding frame (8).
a bag feeding detection sensor (Sl) for detecting whether or not the bag is fed out to the grain filling position;
A slider raising tool (10) is attached to raise the slider (9) of 1) so as to scoop it up. The bag feeding detection sensor (S,) is configured in a non-contact manner using a proximity sensor, and the bag (2)
Detection is performed on the upper edge of the plate member (5A) forming the support hole (5).

To explain the grain filling means (B), a hopper (11) for supplying grain is provided above the grain filling position, and a grain discharge port (12) is provided below the hopper (11). A movable discharge port (13) that is driven to move up and down is provided between the discharge port (12) and the inside of the opening of the bag (2). Furthermore, this movable special exit (
13) will be described later.

A pressure-sensitive filling completion detection sensor (S2) that is inserted into the opening of the bag (2) and detects the completion of filling with grains is provided on the side surface of the movable discharge port (13) (eighth sensor).
(see figure).

A sliding first shutter (
14) and the lower horizontal axis of the first shutter (14) (
A pair of left and right second shutters (
15) are provided. Said second shutter (15)
The distal ends of the two are formed in the shape of forks that interlock with each other in the closed state.

Each of the second shutters (15) comes into contact with the inner surface of the bag (2) when the second shutter (15) is inserted into the opening of the bag (2). bag(
2) is provided with a bag opening detection sensor (S3) that detects whether the bag is opened or not.

Further, an electric motor (M2) is installed near the discharge port (12).
) is attached, and a chain case (17) housing a rotating chain (16) driven by A linking member (19) that acts on the drive member (18), an operating member (20) for opening and closing the first shutter (14), and a zipper (2) of the bag (2) that locks the slider (9). 1) are provided in an integrated state.

That is, the grain filling means (B) has the movable discharge port (
13), consisting of a rotating chain (16) driven by the electric motor (M2), the bell crank type vertical drive member (18) and a linking member (19) acting thereon, and The means (C) includes a rotating chain (1) driven by the electric motor (M2).
6), and locking the slider (9) to remove the bag (
A locking arm (21) that closes the fastener (1) of 2)
The rotating chain (16) and the locking arm (21) driven by the electric motor (M) are connected to the filling means (B) and the closing means (C). This corresponds to one operating means (E) for operating the .

In FIG. 6, (S6) is an operating position detection using a potentiometer that detects the operating position of the locking arm (21) constituting the operating means (E) based on the amount of rotation of the electric motor (λ12). It is a sensor for

To explain the operation of the locking arm (21) constituting the operating means (E), as shown in FIG. The normal operation starts from the initial position (a) where feeding to the grain filling position is completed, moves to the left in the drawing, passes the grain filling position (g), and moves to the left end in the drawing. After moving to the uppermost position (f) where passes through a closure trajectory set on a different trajectory to the lowest limit position (1) located below the upper limit position (0) on the drawing.
Move to the left on the drawing again. The lowest limit position (1
), it switches to normal operation and
It moves rightward in the drawing to the initial position (a) and then stops.

That is, from the initial position (a) to the uppermost position (f)
During normal operation, the movable discharge port (13) is inserted into the opening of the bag (2) fed out to the grain filling position (g), and the first shutter (14) and the second shutter ( 15) is opened to start grain filling, and during the reverse operation of moving from the uppermost position (f) to the initial position (a), both shutters (1, 4), (15)
is operated to close, and the movable discharge port (13) closes the bag (2).
The grain filling is completed when the grain is removed from the opening.

After grain filling is completed, the zipper (1) of the bag (2) filled with grain is removed during the reverse operation of moving from the initial position (a) to the lowest position (1) along the closing trajectory.
) is closed and returns to the initial position (a) by normal movement of its closing trajectory, completing the series of processes required to fill one bag (2) with grain and close the bag opening. I will do it.

After the zipper (1) of the bag (2) filled with grain is closed, the bag (2) is released by the bag release means (D).

However, the position of the locking arm (21) is determined based on information from the operation position detection sensor (S6). Further, although not described in detail, the detection information of the operation position detection sensor (S6) is repeatedly detected at a set time interval, and the information detected before and after the set time interval is used to determine the above-mentioned relationship. By determining the moving speed of the locking arm (21) and comparing it with a preset and stored appropriate moving speed, it is possible to determine whether or not the locking arm (21) is operating normally. . and,
If the moving speed deviates from the appropriate speed, it is determined that an operation error has occurred, and the fastener (1) is removed as described below.
), so that the operation at each stage, such as occlusion, can be automatically redone.

In FIG. 4, (b) indicates the bag opening detection sensor (
The bag is in a state where the locking arm (21) has moved to a position where it is detected whether or not insertion of the movable discharge port (13) into the opening of the bag (2) is completed based on the information in S3). The opening detection position (c) is an insertion error return position that is a reference position for returning the locking arm (13) to the initial position (a) when an insertion error of the movable discharge port (13) occurs. ,(d).

(e) shows the grain filling position (g) and the lowest position (
[) between the locking arm (21) and the locking arm (21) to the position where the first shutter (14) is to be opened and closed.
(h) is a shutter opening/closing detection position range for determining whether or not the first shutter (14) has moved, and (h) is a stop after shutter closing that stops the locking arm (21) after closing the first shutter (14). The position (i) is the movable discharge port (
In order to raise the movable discharge port (13) by half when the insertion error of 13) occurs, the insertion error return position (C)
(j) and (k) are the chuck closing detection position ranges for determining the completion of occlusion, which are set in front of the lowest limit position (1), and (m) are: When the number of failures in closing the fastener (1) is the first time, the return position when the locking arm (21) is returned to the first catch failure, (n) is the return position when the second catch failure occurs. Position (0) is a half-chuck position for returning the locking arm (21) to a position where it does not interfere with the movable discharge port (13) and the slider raising tool (10). Note that the operating state at each position will be explained later.

To explain the bag discharging means (D), as shown in FIG. As the bag is filled with grain and the zipper (1) is closed, the rotary shaft (4) is rotated in the forward direction to release the bag (2) filled with grain and to open the next empty bag. The bag is configured to be able to be paid out to the grain filling position.

Below the grain filling position, there is a bag holder (22) that receives and supports the bag (2) fed out to the grain filling position.
) is pivotably supported to be vertically swingable around a horizontal axis (X2) along the width direction of the bag (2).

The bag holder is placed on the underside of the stand (22).
2) is provided with a drive mechanism (23) for vertically swinging. This drive mechanism (23) includes a swinging electric motor (M3) and a small diameter arm (2) directly connected to the motor shaft.
3A) and a one-way clutch (
A large diameter arm (23B
). In other words, the rocking electric motor (M3)
As the small diameter arm (23A) rotates in the normal direction, the bag holder causes the base (22) to swing with a small amplitude;
In addition, as the swinging electric motor (M3) is driven in reverse, only the large diameter arm (23B) moves from the bag holder to the stand (
22) so that it can be oscillated with a large amplitude by acting on the lower surface of the holder.

During grain filling, in order to increase the filling efficiency, the swinging electric motor (M3) is driven in the forward direction to swing the bag holder and the table (22) with a small amplitude. 2), and when discharging the bags, the swinging electric motor (M3) is driven in reverse to move the bag holder to the stand (
22) will be switched to the release position.

The bag holder is located near the swinging fulcrum of the table (22), and the bag holder is operated by the weight of the bag (2) supported on the table (22) to fill the grain filling position with grain. A bag detection sensor (S
, ) are provided.

To explain further, a limit switch (24) is attached to the lower part of the stand (22) in the bag holder, which is located near the swing fulcrum, and a push tool (25) is used to press and operate the limit switch (24). However, the bag holder protrudes from the top surface of the stand (22), and as the weight of the bag (2) reaches a weight corresponding to a full bag, the bag holder is pressed and swung to the bottom surface of the stand (22). A limit switch (24) is provided to be pressed and operated (see FIG. 5).

The bag holder is located on the front side of the stand (22).
2) a discharge position in which the side deck (27) receives and receives the bag (2) released from the bag (2), and a storage position in which the bag holder is folded toward the stand (22) side. The bag holder is pivotably supported vertically around an axis (X3) parallel to the pivot axis (X2) of the stand (22) so that it can be switched between the two positions.

A turntable (26) is attached to the side deck (27), which is rotatably supported around a vertical axis (Y) while supporting the discharged bag (2).

The side deck (27) is equipped with a switch-type deck attitude detection sensor (S,) that detects whether the side deck (27) is in the released attitude or the retracted attitude.
is attached.

That is, although not described in detail, when the side deck (27) is stored, the bag (2) cannot be released, so the deck attitude detection sensor (S,
), when the side deck (27) is in the retracted position, the operation of the discharge means (D) can be regulated.

Next, a control means (100) for controlling the operation of each of the above-mentioned means.
The configuration of is explained below.

As shown in FIG. 1, each of the sensors (St to S6)
Based on the detection information of each electric motor (M, to M
3) A control device using a microcomputer (
28) is provided.

That is, by using the control device (28), the bag feeding means (A), the filling means (B), and the closing means (
C), and a control means (100) for controlling the operation of each of the bag discharging means (D), and the operation means (E) are in the initial position, and the bag filled with grain is in the grain filling position. Detection means (101) for detecting the presence of the detection means (101) is configured.

In the figure, (SW, ) is an operation mode changeover switch (SW2) for instructing the control device (28) to select the automatic mode for automatic operation or the manual mode for manual operation. ) is a manually operated bag release switch which activates said bag release means (D) when in manual mode;
(29) is an alarm buzzer that activates and gives an alarm in the event of a malfunction, etc.;
(30) is an alarm lamp that blinks when the alarm buzzer (29) is activated.

The operation of the control device (28) will be described in detail below.

First, the bag discharging process (M2) for activating the bag discharging means (D) will be explained based on the flowchart shown in FIG.

In addition, in the automatic mode, this bag release process (M2) is automatically started after executing the charging process for activating the closing means (C), as described later, and in the manual mode, the bag release process (M2) It is activated when the release switch (SW2) is pressed.

As the process is started, the left and right rotating shafts (4) are intermittently rotated by driving the left and right electric motors (Ml) for opening for a set time and then stopping for a set time. After rotating, the bag (4) supported by the rotating shaft (4) is waited until a set time (1.5 seconds) required for the bag (4) to be released has elapsed.

After that, the two rotating shafts (4) are continuously rotated in the normal direction, and then rotated in the normal direction intermittently until the sensor (Sl) for detecting the feeding of both bags is turned on and the next bag (2) is fed out to the grain filling position. switch to the sensor for detecting both bag feeding (Sl
) is turned off.

In other words, when the bag (2) at the grain filling position is discharged, the next empty bag (2) can be automatically fed out to the grain filling position.

After the bag feeding detection sensor (Sl) is turned OFF and the rotating shaft (4) is stopped, both the rotating shafts (4) are operated intermittently until both the bag feeding detection sensors (Sl) are turned ON again. The empty bag (2) is then reversed and returned to the grain filling position to complete the bag discharge process.

However, although not described in detail, for example, if there is no empty bag (2), even if both the rotating shafts (4) are rotated in the normal direction, the bag feedout detection sensor (Sl) is ONL.

Therefore, monitor the driving time of both rotating shafts (4), and if the bag feeding detection sensor (St) is not ONL even after the set time (5 seconds) has elapsed after the start of driving, , the drive of both the rotating shafts (4) is automatically stopped.

In other words, this bag discharging process (M2) is the bag discharging process (M2).
1), and after intermittently rotating both the left and right rotation shafts (4) in the normal direction, the rotation shaft (4)
A series of processes starting from the process of waiting until the set time (1.5 seconds) required for the bag (4) supported by the bag (4) to be released corresponds to the bag dispensing process (Ml).

Next, the operation of the control device (28) will be explained based on the flowchart shown in FIG.

When the power is turned on to the control device (28) and control operation starts, first, it is checked whether the control device (28) is in a checker mode to check whether the various means and various sensors are operating normally. After the determination, it is determined whether the mode is automatic mode based on the information of the operation mode changeover switch (SW, ).

If it is not the automatic mode, that is, if it is the manual mode, it is determined whether or not the bag release switch (SL) is turned on, and when the bag release switch (SL) is turned on, the bag release process (M2) described above is executed. will be executed. Bag release treatment (M
2), and the bag release switch (SW2
) is OFF, the process of checking the operation mode is repeated.

In the automatic mode, the locking arm (21) is
It is determined whether or not the operating position is at the initial position (a) (see FIG. 4).

When the locking arm (21) is at the initial position (a), it is determined whether the bag (2) filled with grain is at the grain filling position based on the information from the bag detection sensor (S,). Determine whether or not.

When the bag detection sensor (S4) is OFF and it is determined that the bag (2) is not at the grain filling position, the left and right rotation shafts are moved in order to release the lock on the bag pusher (7). Reverse (4) for the set time (0.5 seconds)
(Step RO).

However, with the start of normal rotation drive of the rotating shaft (4), the locking arm (21) starts normal operation from the initial position (a) to the uppermost position (f). .

Next, the left side of the rotating shaft (4) is caused to rotate forward intermittently for 2 seconds, and then the right side is caused to rotate forward intermittently to feed out the bag (2).

Thereafter, the bag feeding process (M 1 ) is executed, and after the both bag edge detection sensors (Sl) are turned on, the bag (2) is fed out to the position where they are turned on again (step R1).

After carrying out the bag feeding process (Ml), both rotating shafts (4) are reversed for 0.2 seconds to adjust the position of the bag (2) relative to the grain filling position (step R2).

After the bag (2) is fed out to the grain filling position, the process of inserting the movable discharge port (13) into the opening of the bag (2) is started, and the process is started based on the information of the operation position detection sensor (S6). When it is determined that the locking arm (21) has moved to the bag opening detection position (b) (see FIG. 4),
Both the left and right bag opening detection sensors (S3) are ON.
It is determined whether or not it has been done (step R3).

Both the left and right bag opening detection sensors (S3) are ON.
Accordingly, it is determined that the insertion of the discharge port is completed, and the first shutter (14) is opened to start grain filling (step R4).

After starting grain filling, it is determined based on the information of the operation position detection sensor (S6) that the locking arm (21) has reached the grain filling position (g), and the filling efficiency is determined. In order to increase the bag holder, the platform (22) starts to swing. However, the bag holder base (22) is designed so that after being continuously oscillated for 8.5 seconds, the oscillation is switched to intermittent oscillation.

Next, the bag detection sensor (S4) is turned off for 0.3 seconds or more.
N, it is determined whether the grain filling is completed or not, and as the grain filling is completed, the first shutter (14) is operated to close, and the bag holder continuously swings the table (22). While doing so, the movable discharge port (13) is intermittently raised and extracted from the opening of the bag (2). Incidentally, at this point, the locking arm (21) is reversely operated from the uppermost position (f) toward the initial position (a).

When grain filling is completed, the locking arm (
21) starts normal operation along the occluding trajectory,
A process for closing the fastener (1) is executed (step R5).

However, based on the information of the operation position detection sensor (S6), the locking arm (21) is at the initial position (a).
The chuck is completed properly based on whether the time to reach the lower limit position (1) and the chuck closed detection position range (Lk) set on this side is within the memorized set time. Determine whether or not it was done.

To explain, in the case of a chuck error, since the load on the locking arm (21) is light, the time required for the locking arm (21) to reach the chuck close detection position range (Lk) is memorized and set. The time may be shorter than the set time, or it may be significantly longer. Therefore, completion of the chuck is determined by checking the time until the locking arm (21) reaches the lowest position (1).

When the chuck is completed, the locking arm (21) is reversely operated to return to the initial position (a).

After returning the locking arm (21) to the initial position (a), it is determined whether or not the side deck (27) is in the retracted position based on information from the deck position detection sensor (S5). (Step R6).

When the deck attitude detection sensor (S5) is turned on and it is determined that the side deck (27) is in the retracted attitude, the deck attitude detection sensor (S,) is turned on.
The subsequent processing will be stopped and put on standby until the side deck (27) is switched to the ejection position after being turned FF.

When it is determined that the side deck (27) is in the discharging position, the bag discharging process described below is started. however,
The deck attitude detection sensor (S,) changes from ON to OFF.
When the state changes to F, the system waits for 2.5 seconds so that the bag discharging process does not start until the side deck (27) has been completely switched from the storage position to the discharge position.

In the bag release process, first, the same process as the bag release process (M2) in the manual mode is executed, and then the bag holder is placed on the stand based on whether the bag detection sensor (S) is ON or not. It is then determined whether there is a bag (2) in (22). However, if the bag detection sensor (S,) is ON, it is made to wait for 20 seconds until it is turned OFF.

Even after 20 seconds have passed, the bag detection sensor (S,) remains ON.
In this case, the bag holder stops swinging of the stand (22) and waits until the bag detection sensor (S4) is turned off.

When it is determined that the bag detection sensor (S,) is turned off, the bag holder swings the stand (22) for 5 seconds to release the bag (2), and then moves the bag holder to the both rotating shafts (4). ) to 0.2
The movable discharge port (13) is reversed for a second to adjust the position of the next bag (2) to the grain filling position, and the movable discharge port (13) is
) Discharge port insertion process (step R3)
By starting the process again, the grain filling process for the next empty bag will be started.

By the way, in each process explained above, if the operation of each part fails, the same process is automatically repeated up to twice.

First, the processing at the start of the control operation will be described.

When the locking arm (21) is not at the initial position (a,) at the start of the control operation, it is determined whether it is at the grain filling position (g).

When the bag is in the grain filling position (g), it is determined whether or not both of the bag opening detection sensors (S,) are ON, and if both are ON, the locking arm (21 )
is at the opening detection position (b) and returns to the process (step R4) of starting insertion of the movable discharge port (13), and if both are not ON, the bag detection sensor (S4) is It is determined whether it is ON or not.

The locking arm (21) is in the grain filling position (g).

, and both of the bag opening detection sensors (S3) are set to O.
N, and the bag detection sensor (S,) or ONL
If so, after the locking arm (21) is returned to the initial position (a), it is memorized that this is the first insertion error, and all chuck signals are set in case of an insertion error. Then, the process returns to the process (step R3) of starting insertion of the movable discharge port (13).

On the other hand, if the locking arm (21) is not at the initial position (a) and also not at the grain filling position (g), it is determined whether it is at the return position (n) at the time of the second chuck error. Determine whether

When the bag is at the second return position (n), it is determined whether or not the bag detection sensor (S,) is ON;
If it is not ON, the locking arm (21) is returned to the initial position (a), the locking arm (2I) is returned to the initial position (a), and the bag detection sensor (S
, ) is not ON, and when the control operation is started normally, the process of reversing both rotating shafts (4) for 0.5 seconds (step RO) is returned to, and the bag detection sensor (S, ) is ON. , the fastener (1
) is set to indicate that this is the first chuck error, and the bag receiver is configured to continuously swing the stand (22) to restart the chucking process (step R5).

If it is not at the second return position (n), determine whether the bag detection sensor (S,) is ON or not;
If it is not ON, after returning the locking arm (21) to the initial position (a), rotate both the rotation shafts (4) by 0.5
When the bag detection sensor (S4) is ON, the bag holder causes the stand (22) to swing continuously.

After the bag holder continuously swings the stand (22), depending on the position of the locking arm (21),
After correcting the arm position, the process returns to the chucking process (step R5).

To explain, the locking arm (21) is in the vicinity of the shutter open position, that is, from the state (g-2) in which it is located about 2 seconds before the grain filling position (g), to the shutter If the movable discharge port (13
) is raised intermittently and stopped for 4 seconds at the discharge quarter raised position (i) set between the stopped position (11) and the initial position (a), and then the chucking process (step R5).

The locking arm (21) is in the intermittent rising section of the movable discharge port (13), that is, the stop position after the shutter is closed (
h) to a state (i+2) reaching the lower side after about 2 seconds from the ejection quarter raised position (i), start the process of intermittently raising the movable ejection port (13); The lower side (i) of the discharge quarter raised position (i)
+2), the process starts with stopping for 4 seconds at the discharge quarter raised position (i), and the locking arm (21) is positioned on the lower side (i+) of the discharge quarter raised position (i).
2) and the initial position (a), the system immediately returns to the chucking process (step R5).

Next, at the start of the control operation, the locking arm (21) is in the initial position (a), and the bag detection sensor (
The recovery process when S4) is turned on and it is determined that the bag (2) filled with grain is at the grain filling position will be described.

First, in order to determine whether it is an unreleased bag (2) or an unfilled bag (2) that has failed to feed out, it is determined whether both the left and right bag feeding detection sensors (Sl) are at 0FFt. Determine whether

Both of the bag feeding detection sensors (Sl) are OFF.
If so, it is determined that the bag feeding has failed, and after executing the bag discharging process (M2), the bag holder is placed on the stand (2).
2) for 10 seconds to detect the bag detection sensor (S,
) is OFF, the bag feeding process (Ml
), the process returns to the process (step R2) of reversing both rotating shafts (4) for 0.5 seconds.

Both of the bag feeding detection sensors (Sl) are OFF.
If not, it is determined that there is a bag (2) that has not been released due to failure in bag release, and a chucking process is performed to close the zipper (1) and the locking arm (21) is moved to the initial position (a). ) after executing the initial position setting process to return to
The process is started from the process (step R6) of determining whether the side deck (22) is in the retracted position or the ejected position.

To explain further, since the locking arm (21) is configured to operate in the forward and reverse directions with respect to its initial position (a), if the control operation is stopped at the start of the chucking process, When the control operation is restarted, the locking arm (21) is located at the initial position (a), the bag detection sensor (S4) is turned on, and the bag (2) filled with grain is placed in the grain-filled position. position, and both of the bag feeding detection sensors (Sl) are not OFF, the zipper (1) of the bag (2) filled with grains is closed.
) may be released in an unoccluded state, so in that case, start the closing process again to prevent the unoccluded bag (2) from being released. This is what we are doing.

At the start of the control operation, if the operating means (E) is at the initial position and it is detected that there is a bag filled with grains at the grain filling position, the operation means (E) will be described in detail later. Closing means (C) for closing the fastener (1)
After the chucking process for activating the locking arm (21) is executed, the arm initial position setting process for returning the locking arm (21) to the initial position (a) is executed.

That is, based on the information of the operation position detection sensor (S6), the bag detection sensor (S4), and the bag delivery detection sensor (Sl), the operation means (E) is at the initial position. , and a series of steps to determine whether or not a bag filled with grain exists at the grain filling position. The processing corresponds to the detection means (101) for detecting that the operating means (E) is at the initial position and a bag filled with grain is present at the grain filling position at the start of the control operation. become.

When the operating means (E) is at the initial position at the start of the control operation and it is detected that there is a bag filled with grain at the grain filling position, the chucking process and the arm initial position are detected. By performing the setting process, the control means (100) is configured such that, at the start of the control operation, the operating means (E) is at the initial position and a bag filled with grain is present at the grain filling position. If the detection means (lot) detects the presence of a bag, the system is configured to start the operation from closing the bag opening.

Next, the locking arm (21) is moved to the bag opening detection position (
In b), the left and right bag opening detection sensors (S3)
Processing to determine whether both are turned on (step R3
), the process will be described when both are not turned on, that is, when insertion of the movable discharge port (13) fails.

If the insertion of the movable discharge port (13) fails, based on the information of the operation position detection sensor (S6),
The locking arm (21) moves the locking arm (21) from the insertion misreturn position (C) set between the opening detection position (b) and the grain filling position (g) to the initial position ( After returning to step a), it is determined whether or not the insertion is the second time.

If the insertion failure is not the second time, both rotating shafts (4)
After intermittent reverse rotation for 1.5 seconds, the rotation is switched to intermittent forward rotation to return to the process (step R1) in which the bag dispensing process (Ml) is executed in the normal state.

If the insertion failure is the second time, it is determined whether or not it is the second bag in a row, and if it is not the second bag in a row, all the chucks are removed based on the information of the operation position detection sensor (S6). Whether there is a signal, that is, the locking arm (21)
is within the chuck closed detection position range (Lk), and if there are all chuck signals, the process returns to the chucking process (step R5), and if there are no chuck signals, the process returns to the chucking process (step R5). , return to the initial position (a,) by passing through a half-chuck position (0) set between the initial position (a) and the chuck close detection position range (Lk), and perform the bag release process. After executing (M2), the both rotating shafts (after executing the bag feeding process (Ml)
4) is returned to the process of reversing the rotation for 0.2 seconds (step R2).

If the insertion failure is the second bag in a row, the alarm buzzer will sound.
(29) is activated, the alarm lamp (30) is blinked, the bag receiver stops the swinging of the stand (22), and the entire process is completed.

Next, a recovery process when a chuck error occurs in the chucking process (step R5) will be explained.

When a chuck error occurs, it is determined whether or not this is the second time, and if it is the second time, the locking arm (21) is moved between the half-chuck position (o) and the initial position. The alarm buzzer (
29) is activated, the alarm lamp (30) is made to blink, the bag receiver stops the swinging of the stand (22), and the entire process is completed.

If the chuck error is not the second time, the locking arm (21) is moved to the stop position at the first chuck error, which is set between the stop position (n) at the time of the chuck error and the initial position (a). position (m), and then rotate both rotational axes (
After 4) is intermittently rotated forward, the chucking process (step R5) is executed again.

[Another example]

In the above embodiment, the operating position of the locking arm (21), that is, one operating means (E) for operating the filling means (B) and the closing means (C), is determined based on its moving speed. In this case, the operation position detection sensor (S6) is configured to be able to output a signal corresponding to the absolute position of the locking arm (21), and the position is directly determined based on the detected information. It may be possible to
The specific configurations of various sensors and means can be changed in various ways.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the automatic bagging device according to the present invention, FIG. 1 is a block diagram of the control configuration, FIGS. 2 and 3 are flowcharts of the control operation, and FIG. 4 is an explanation of the movement path of the operating means. 5 is a schematic perspective view of the automatic bag filling device, FIG. 6 is a side view thereof, FIG. 7 is a plan view thereof, and FIG. 8 is a front view thereof. (A)... Bag feeding means, (B)...
・Filling means, (C)...Closing means, (D)...
,...Bag release means, (E)...Operating means,
(1)...Zipper (2)...Bag,
(100)... Control means, (101)...
...Detection means.

Claims (1)

[Claims] A bag feeding means (2) for feeding out a grain storage bag (2) equipped with a fastener (1) for closing an opening to a grain filling position;
A), a filling means (B) for filling the unrolled bag (2) with grain, a closing means (C) for closing the zipper (1) of the bag (2), and releasing the bag (2). each of bag discharging means (D) is provided, one operating means (E) for operating said filling means (B) and said closing means (C),
The filling means (B) is switched to a filling action state by normal operation from the initial position, and the filling means (B) is switched to a filling stop state by reverse action toward the initial position, and the filling means (B) is moved away from the initial position. It is provided so that the closing means (C) is operated to close by reverse operation, and the bag (
2) feeding, filling with grain, closing the bag opening, and
The bag dispensing means (A), the filling means (B), and the closing means (
C) and a control means (100) for controlling the respective operations of the bag and the discharging means (D), wherein the control means (100) is configured to: When the operating means (E) is at the initial position and the detecting means (101) detecting the presence of a bag filled with grain at the grain filling position, the bag opening is An automatic bagging device configured to be activated upon occlusion of the bag.