JPH11105827A - Automatic bag filling machine for crop particles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic bag filling machine for crop particles or the like capable of performing a positive filling of measured powder particles such as crop particles. SOLUTION: A first valve and a second valve are installed at vacuum passages of a first group of sucking pads 41 (41a, 41b) and a second group of sucking pads 42 (42a, 42b) for sucking and opening a bag opening part by operating a bag opening mechanism 4 in respect to the bag supplied to a filling section by a bag taking-out mechanism. Sucking action of each of the first group and the second group of the sucking pads can be applied individually, the bag is opened under the sucking action of the first group 41 of the sucking pads and the second group 42 of the sucking pads, thereafter upon completion of holding of the bag with the bag holding mechanism 5, the second valve is turned off to terminate the sucking action of the first group 41 of the sucking pads, the other group 42 of the second sucking pads is operated such that the sucked state at the central part of the opening is maintained until completion of filling of crop particles by the first valve and in turn the crop particles are prevented from being fallen out of the bag when the crop particles are filled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bagging apparatus for automatically filling weighed powders such as grains into a bag whose mouth is opened and gripped.

[0002]

2. Description of the Related Art A filling machine equipped with a measuring device is arranged at the upper part of a frame, an auxiliary chute is provided at the lower part of the filling machine so as to be openable and closable, and bag opening means and gripping means are arranged in relation to the auxiliary chute. Then, the bags are taken out one by one from the bag loading portion loaded with a large number of bags and supplied to the filling portion of the granular material, and the bag is held in the filling portion and the bag is held in an open state, Various devices have been conventionally known as automatic bagging apparatuses for powders and granules in which bags are filled with powders and granules weighed by the method.

In a conventional automatic bag filling apparatus, a bag opening mechanism for opening a mouth of a bag at a filling portion of a granular material such as a grain,
A bag gripping mechanism that grips both ends of the mouth of the bag, and a pair of auxiliary chutes provided to be openable and closable below the input hopper to guide the weighed powders and granules into the opened bag, the filling unit includes: The supplied bag is grasped at both ends of the bag mouth by the bag grasping mechanism, the mouth of the bag is opened by the bag opening mechanism, and the mouth of the bag opened by the rotation of the pair of auxiliary chutes. The bag is further expanded, and thereafter, the bag is held in a suspended state without supporting the bottom thereof, so that the weighed powder is filled through the auxiliary chute. And the suction cup for opening of the bag opening mechanism,
After the mouth of the bag is opened by the suction action, when the pair of auxiliary chutes are rotated into the bag, the suction action of the suction cup for opening is stopped, and both ends of the bag mouth are held by the bag holding mechanism. In addition, the filling of the granular material is performed.

[0004]

Various bags are used for filling the granular material. For example, in a bag having a knot, a fold is formed along the knot near the mouth of the bag. It is attached, and there is also a thing that has a folded part at the bottom, because when filling such as grains using this kind of bag, the bag mouth has a tendency to be folded inward along the fold In the bag opening mechanism of the conventional automatic bag filling device,
It is difficult to reliably open the mouth of the bag, and when the auxiliary chute is rotated, a part of the auxiliary chute comes into contact with the upper edge of the opened bag mouth and presses that portion, and the grain is pressed. There has been a situation in which a gap is formed between the auxiliary chute serving as a guide for the grains and the opening of the bag and the grains and the like are spilled out of the bag.

Further, the bag is held in a suspended state, filled with grains, etc., so that the folded portion at the bottom can be sufficiently widened, and the bag is held at both ends by a gripper or the like of a bag holding mechanism. As the filling of the grains and the like progresses, the weight of the grains and the like filled in the bag is added, and as the weight of the bag increases, the central portion of the upper edge of the bag mouth portion is It will be pulled down by the weight, as a result, a gap is generated between the central portion of the upper edge of the bag mouth portion pulled down and the lower end of the auxiliary chute,
A situation in which grains and the like spilled out of the gap also occurred.

Further, when the bag bottom receiving plate is raised a predetermined time after the start of filling, and the bottom of the bag is supported so as to receive the weight of the bag filled with grains or the like, the bag mouth portion is also required. The center of the upper edge of the bag is easily deformed, and a gap is generated between the center of the upper edge of the bag mouth and the lower end of the auxiliary chute. Had happened.

However, in the conventional automatic bagging apparatus, means for properly preventing the above-mentioned situation is not adopted, and bagging is surely performed without spilling grains or the like during filling. There were many cases where it was not possible.

In view of the above, the present invention has been made in view of the problems of the conventional automatic bag filling apparatus, and is intended to reliably fill weighed grains and the like into a bag held by opening. It is an object of the present invention to provide an automatic bagging device for granules and the like.

[0009]

In order to achieve the above-mentioned object, an automatic bagging apparatus for grains and the like according to the present invention takes out a bag from a bag mounting table on which a plurality of bags are stacked and fills the bag with grains and the like. A bag removing mechanism disposed above the bag mounting table for supplying bags to the bag, and a bag opening mechanism for receiving the bags supplied by the bag removing mechanism in the filling section and opening the mouth of the bags. A bag gripping mechanism arranged in parallel with the bag opening mechanism for gripping both ends of the bag opened by the bag opening mechanism, and a charging hopper for filling grains and the like into the opened bag. And a pair of auxiliary chutes provided to be openable and closable below the input hopper, and an automatic bagging device for grain and the like, comprising a bag discharging mechanism for discharging a bag for which bagging of grain and the like has been completed. The bag opening mechanism is operated by a bag removing mechanism. At least two pairs of first suction cups provided so as to be able to move toward and away from each other by vacuum suction on both sides of the mouth of the bag to be supplied, and a portion closer to the mouth than the suction portion of the first suction cup. A second sucker provided so as to be capable of moving toward and away from each other by vacuum suction on both sides thereof, wherein the first sucker and the second sucker are separated from each other to open the mouth of the bag; In the vacuum path of the suction cup, a first valve for turning on and off the first suction cup and the second suction cup and a second valve for turning on and off only the first suction cup are provided. .

[0010] Further, the automatic bagging apparatus for grains and the like according to the present invention is characterized in that the bags are taken out of a bag rest for loading a plurality of bags and the bags are supplied to a filling section for grains and the like. , A bag opening mechanism for receiving a bag supplied by the bag extracting mechanism in the filling section and opening a mouth of the bag, and a bag opened by the bag opening mechanism. A bag gripping mechanism arranged in parallel with the bag opening mechanism for gripping both ends of the bag, a charging hopper for filling the opened bags with grains and the like, and a hopper provided below the charging hopper so as to be openable and closable. A pair of auxiliary chutes, and an automatic bagging device for grains and the like including a bag discharging mechanism for discharging bags whose bagging of kernels and the like has been completed, wherein the bag opening mechanism is a bag unloading mechanism. Vacuum one side of the mouth of the supplied bag At least two first fixed suction cups, and a second fixed suction cup that vacuum-adsorbs a portion closer to the mouth than the suction portion of the first fixed suction cup on one surface of the mouth of the bag; At least two parts are provided so as to be capable of moving toward and away from the second fixed suction cup and vacuum-suction the other parts corresponding to the suction parts of the first and second fixed suction cups near the mouth of the bag. A plurality of first movable suction cups and a second movable suction cup, and the opening of the mouth of the bag is opened by the separation movement of the first and second movable suction cups with respect to the first and second fixed suction cups. A first valve for turning on / off a first suction group consisting of the first fixed suction cup and the first movable suction cup and a second suction cup group consisting of the second fixed suction cup and the second movable suction cup in a vacuum path of the suction cup; , Turn on only the first suction cup group First off 2
A valve is provided.

[0011] In the automatic bagging apparatus for grains and the like according to the present invention, the first valve and the second valve of the vacuum path of the suction cup are supplied to the bag supplied to the filling section for the grains and the like by the bag removing mechanism. With the first suction cup group and the second suction cup
Activating the suction of the suction cup group to open the mouth of the bag, and after rotating the pair of auxiliary chutes into the opened mouth of the bag and gripping both ends of the bag by the bag gripping mechanism, It is preferable that the suction operation of the first sucker group is stopped by setting the second valve to an off state, and only the suction operation of the second sucker group is continued to perform filling of grains and the like.

Further, in the automatic bag filling apparatus for grains and the like according to the present invention, the bag holding mechanism includes both ends of the bag opening mechanism so as to hold both ends near the mouth of the bag opened by the bag opening mechanism. Two fixed grippers arranged side by side outwardly and corresponding to both ends near the mouth of the bag, and two fixed grippers provided so as to be able to move toward and away from the fixed gripper by cylinder means. A movable gripper, and the movable gripper is moved closer to the fixed gripper so as to grip both ends near the mouth of the bag. A pair of auxiliary chutes are opened and closed by a rotary cylinder. When opened and driven, the bag enters the mouth of the bag opened by the bag opening mechanism, expands the mouth of the bag, and guides the measured grains and the like together with the input hopper to fill the bag. Sure line The bag bottom receiving plate disposed below the filling portion is provided so as to be vertically movable by a bag bottom raising cylinder means. Is preferably configured to support.

[0013]

According to the automatic bag filling apparatus for grains and the like of the present invention, the bag opening mechanism is capable of vacuum-sucking both sides of the mouth of the bag supplied by the bag unloading mechanism so as to be able to move toward and away from each other. At least two pairs of the first suction cups provided, and a second suction cup which is provided so as to be capable of moving toward and away from each other by vacuum-suctioning both surfaces of a portion closer to the mouth than the suction portion of the first sucker. More specifically, at least two first vacuum suction units for vacuum-sucking one surface of the mouth of the bag supplied by the bag unloading mechanism.
A second vacuum suctioning part of the mouth of the fixed suction cup and the bag closer to the mouth than the suction part of the first fixed suction cup.
The first and second fixed suction cups and cylinder means
It is provided so that it can move toward and away from the fixed suction cup of
At least two first movable suction cups and second movable suction cups for vacuum-sucking the other surface parts corresponding to the suction parts of the first and second fixed suction cups near the mouth of the bag, respectively, And the opening of the mouth of the bag supplied by the separation movement of the first and second movable suction cups with respect to the second fixed suction cup, and the first fixed suction cup and the first suction cup are connected to the vacuum path of the suction cup. A first valve for turning on and off a first suction group consisting of a movable suction cup, a second suction group consisting of the second fixed suction cup and a second movable suction cup, and a second valve for turning on and off only the first suction cup group. Arranged, the first valve and the second valve of the vacuum path of the suction cup are turned on with respect to the bag supplied to the filling portion such as grains by the bag removal mechanism, and the first suction cup group and the second suction cup group are turned on. Activating suction to open the mouth of the bag, Then, after the pair of auxiliary chutes rotate to the opened mouth of the bag and grip both ends of the bag by the bag gripping mechanism, the second valve is turned off and the suction action of the first sucker group is performed. Is stopped, and only the suction action of the second sucker group is continued to perform filling of grains and the like, so that the first sucker group and the second sucker group form a fold near the mouth of the bag. Even if the bag is attached and has a tendency that either side of the front and back sides of the mouth of the bag is easily broken inside, the second sucker group reliably sucks the periphery of the fold and the upper part thereof. Can be prevented from being bent inward, and the bag can be reliably opened.

Further, in the conventional apparatus, after the filling of grains and the like is started, the bag bottom receiving plate is raised, the input grains and the like are dropped, and the bag is creased at the mouth portion. Although the grains may spill out of the bag, the suction action of the second suction cup group is continued from the start of the filling of the grains to the end of the filling, so that the bags are filled during the filling of the grains. Can be held by suction, and it is possible to reliably prevent the grains and the like from spilling out of the bag during the filling of the grains and the like.

Further, according to the present invention, the supply, opening and gripping of the bag can be reliably performed without using a complicated link mechanism. Is performed while the mouth of the bag opened by the second sucker group is sucked, and initially performed in a suspended state, and in the case of a bag having a folded portion at the bottom, the folded portion at the bottom is expanded. In addition, after the elapse of a predetermined time after the start of filling of grains and the like, the filling is performed while the bottom of the bag is supported by the bag bottom receiving plate. In addition, the central portion of the opening edge of the bag is not pulled down, so that it is possible to prevent a gap from being generated between the auxiliary chute and the bag, and the grain and the like are filled during the filling of the grain and the like. It can reliably prevent spills outside the bag. That.

[0016]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view schematically showing an automatic bagging apparatus for grains and the like according to the present invention, and FIG. 2 is a view showing an automatic bagging apparatus for grains and the like according to the present invention. FIG. 3 is a schematic front view of the automatic bag filling apparatus for grains and the like according to the present invention. FIG. 3 is a side view of a relevant part showing a relation between a bag removing mechanism, a bag opening mechanism, and a bag bottom receiving plate. It is.

1 to 3, on the upper part of a frame 1 provided on a base 1a, a granular material such as grains (hereinafter simply referred to as grains) supplied from a measuring tank (not shown). A receiving hopper 6 is provided, a bag opening mechanism 4 and a bag gripping mechanism 5 are provided below the charging hopper 6, and a bag mounting table 2 for loading bags is provided at a lower front part of the frame 1, and A bag unloading mechanism 3 is arranged above the bag mounting table 2. Further, on the side of the frame 1, there is provided a bag discharging mechanism 8 for discharging a bag filled with grains from the apparatus.

At the front of the frame 1, a bag mounting table 2 for mounting a plurality of bags 10 is attached to a base 1a, and a bag unloading mechanism 3 disposed above the bag mounting table 2 has a structure shown in FIGS. As shown in FIG. 3, the bags 10 are separated and taken out one by one from a plurality of bags 10 loaded on the bag mounting table 2, and the bag opening mechanism 4 and the bag gripper located at the filling portion of the grain or the like. Mechanism 5
The bag unloading mechanism 3 has at least two suction cups 31, 31 on a suction cup holder 32 attached to the tip of a piston rod 33a of a bag supply cylinder 33, and the suction cups 31, 31 Is a vacuum generator (not shown) through a hose (not shown) through the suction cup holder 32
Is communicated to. The bag supply cylinder 33 is attached to a cylinder holding plate 37 integrally fixed via a fixing member 36 to a rotation shaft 35 rotatably supported by a support bracket 3 a provided at the front portion of the frame 1. , The rotating shaft 35 is connected to a rotating motor (not shown) fixed to the same support bracket 3a.
Numeral 7 is rotated via a rotary shaft 35 by the operation of the rotary motor, and the bag supply cylinder 33 attached to the cylinder holding plate 37 is also moved from the position shown by the solid line in FIGS. To about 90)
It is configured to be able to rotate by degrees. In the bag removing mechanism 3, the operations of the bag supply cylinder 33, a rotary motor (not shown), and a vacuum system of the suction cup 31 are controlled by a control device (not shown), and the fixed position of the expansion / contraction movement of the bag supply cylinder 33 is detected. Detector Sw1, feeding cylinder 33
Detectors Sw2 and Sw3 for detecting the vertical position and the rotated position of the bag-supply cylinder 33, respectively, are provided in relation to the rotation motor that rotates (detectors Sw1 to Sw3 are schematically shown in FIG. 3). , And a suction cup 3 for adsorbing the bag
The vacuum path 1 is provided with a bag supply pressure switch Sw4 (not shown) which is turned on when the suction cup 31 is in the state of sucking a bag and detects the state, and these detectors and the like are controlled. They are connected to a device and their detection results are sent to the control device.

As shown in FIG. 3, when the piston rod 33a is extended by the operation of the bag-supply cylinder 33, the suction cup holder 32 provided at the tip of the piston rod 33a, as shown in FIG. The plurality of suction cups 31, 31 are lowered together. The suction cups 31, 31 abut against the uppermost bag 10 of the plurality of bags loaded on the bag platform 2, suck the uppermost bag 10 by a suction action, and then operate the bag supply cylinder 33. Piston rod 3
Due to the upward contraction of 3a, the suction cups 31, 31 rise in a state where the bag 10 is sucked, and the bag 10 is taken out of the bag mounting table 2. Then, the operation of the rotary motor rotates the cylinder holding plate 37 and the bag supply cylinder 33, and further, the suction cups 31, 31, and supplies the bag 10 to the bag opening mechanism 4 and the bag gripping mechanism 5 provided in the filling portion. .

The mounting member 40 constituting the filling portion of the grain is
As shown in FIGS. 1 to 3, the mounting member 40 has a substantially inverted U-shaped cross section with an open lower portion, and is attached to an upper frame member of the frame 1 via a mounting piece 40j.
As shown in FIG. 3 to FIG. 7, the upper wall portion 40a and the front and rear side wall portions 40b and 40c are formed, and the upper wall portion 40a passes the kernel through the central portion thereof as shown in FIG. A hole 40g to be formed is formed, and a charging hopper 6 and a pair of auxiliary chutes 63, 63 that open and close are disposed above the hole 40g (see FIGS. 2 and 6). The front and rear side walls 40
A bag opening mechanism 4 and a bag gripping mechanism 5 are provided side by side at b and 40c at substantially the same height.

As shown in FIGS. 2 to 4, the bag opening mechanism 4 has at least two first fixed suction cups 41a, and at least two first movable cups which can be moved toward and away from the first fixed suction cup. A first sucker group 41 composed of suckers 41b, 41b,
And a second sucker group 42 composed of second fixed suction cups 42a, 42a and second movable suction cups 42b, 42b which can be moved toward and away from the second fixed suction cup, and the first fixed suction cups 41a, 41a are provided.
The second fixed suction cups 42a and 42a are both held by a suction cup holder 43 fixed to the front side wall portion 40b of the mounting member 40, and protrude inside the mounting member 40. And the 1st fixed suction cups 41a and 41a are positioned so that it may correspond to the part near mouth part 11 of bag 10 supplied by bag unloading mechanism 3, and 2nd fixed suction cups 42a and 42a are 1st fixed suction cups 41a and 41a. The mouth 1 of the bag 10 is located above the first fixed suction cup 41a and between the first fixed suction cups 41a, 41a.
1 so as to correspond to a portion closer to 1. In addition, the first movable suction cups 41b, 41b and the second movable suction cup 4
2b, 42b move to the inside of the mounting member 40 through the window 40d formed in the rear side wall portion 40c of the mounting member 40, and move with respect to the first fixed suction cups 41a, 41a and the second fixed suction cups 42a, 42a. Each is configured to be movable so that it can abut. First movable suction cups 41b, 41
b and two opening cylinders 45, 45 for driving the second movable suction cups 42b, 42b back and forth (see FIGS. 2 and 3).
A connecting bar 46 is attached to each of the piston rods 45a, 45a which are disposed apart from each other on the upper wall portion 40a of the mounting member 40 and extend and contract in the front-rear direction. It is fixed to the upper part of the drive frame 47 having a U-shape. A first movable suction cup 41b, 41b and a second movable suction cup 42b are provided on the lower front surface of the drive frame 47.
A suction cup holder 48 holding the 42b is fixed, and a slide body 47a is attached to a lower rear surface of the drive frame 47. The slide body 47a is configured to move along two guide shafts 49 arranged on a guide base 49a provided at the lower end of the rear wall portion 40c of the mounting member 40, and the drive frame body 47 is provided. To guide the movement.

In the bag opening mechanism 4, the opening cylinder 45, the first sucker group 41 and the second sucker group 42
The operation of the vacuum system and the like is controlled by the control device, and the first and second movable-side suction cups 41b and 42b are connected to the first and second fixed-side suction cups 41b in association with the operation of the opening cylinder 45.
Detectors Sw that detect the positions distant from each other, ie, the fixed positions, and the positions that contact the first and second fixed-side suction cups 41a, 42a, ie, the closing positions, respectively.
5 and Sw6 are provided (see FIG. 3).

A first fixed suction cup 41a and a movable suction cup 41b,
The second fixed suction cups 42a and the movable suction cups 42b communicate with the vacuum generator through hoses through the fixed and movable suction cup holders 43 and 48, respectively. So that the first fixed suction cup 4
All the suction cups of the first suction cup group 41 including the first suction cups 1a and the first movable suction cups 41b and the second suction cup group 42 including the second fixed suction cups 42a and the second movable suction cups 42b are turned on / off (ON-OF).
F) A first valve 101 to be turned on and a second valve 102 to turn on / off (ON-OFF) only the first sucker group 41 are provided, and the first sucker group 41 and the second sucker group 42 or An opening pressure switch Sw7 is provided so that the second suction cup group 42 is turned ON when the second sucker group 42 is normally sucking the bag (in the state where the second valve 102 is OFF) to detect the sucked state. These detectors and switches are connected to a control device, and the detection results are sent to the control device. In FIG. 9, reference numerals 103, 103 are filters provided in a vacuum path.

When the bag 10 is supplied by the bag removing mechanism 3, the opening cylinders 45, 45 actuate the piston rod 45.
a, 45a are contracted and the drive frame 47, which is guided and moved by the guide shaft 49, moves forward,
First movable suction cup 41b, 41b and second movable suction cup 42
b, 42b are the first fixed suction cups 41a, 41a and the second
It moves toward the fixed suction cups 42a, 42a, the first fixed suction cup 41a, the movable suction cup 41b, and the second fixed suction cup 4a.
2a and the movable suction cup 42b press the respective parts of the bag 10 from both sides. This state is detected by the detector Sw6. Then, the first valve 101 and the second valve 102 of the vacuum path are both turned ON to connect the first suction group 41 and the second suction group 42 to the vacuum generator 100, and the suction action causes the vicinity of the mouth 11 of the bag. Is adsorbed on the front side and the back side, respectively. Then, open cylinder 4
Due to the extension movement of the piston rods 45a, 45a by the operations of 5, 45, the first movable suction cups 41b, 41b and the second movable suction cups 42b, 42b,
42b moves rearward while adsorbing one side of the mouth portion 11 of the bag, that is, the first fixed sucker and the movable sucker, and the second sucker and the second sucker.
The fixed suction cup and the movable suction cup are separated from each other, and the mouth 11 of the bag 10 is opened. This state is detected by the detector Sw5.

In this embodiment, the first fixed suction cup 41a, the movable suction cup 41b, and the second fixed suction cup 4
By providing the 2a and the movable suction cup 42b, the bag 10 is creased in the vicinity of the mouth 11 of the bag 10 and has a tendency that either one of the front and back sides of the bag mouth 11 is easily bent inward. In addition, since the second sucker group 42 reliably sucks the periphery of the fold and the upper part thereof, the mouth 11 of the bag 10 can be prevented from being bent inward, and the bag can be reliably opened. . Further, a first valve 101 and a second valve 102 are provided in a vacuum path of the bag opening suction cup, and the first fixed suction cup 41a and the movable suction cup 41b, and the second fixed suction cup 42a and the movable suction cup 42b are individually provided. , The respective operation timings can be appropriately set. For example, from the start of opening of the bag to the bag holding operation by the bag holding mechanism 5, as described above, both the first valve 101 and the second valve 102 are turned on, and all the suction cups 41a, 41
b, 42a, and 42b are operated, and at the end of the bag gripping operation, only the second valve 102 is turned off, and the first valve 102 is turned off.
The suction action of the fixed suction cup 41a and the movable suction cup 41b is stopped. At this time, the first valve 101 is in the ON state,
The second fixed suction cup 42a and the movable suction cup 42b still maintain a state in which the vicinity of the mouth of the bag is sucked. Then, after the filling of the grains is started, before and after the bag bottom receiving plate 72 described later rises and the filling of the grains is completed, the first valve 101 is turned off, whereby the second fixed suction cup 42a and the movable suction cup 42a are turned off. 42
The suction action of b is stopped. With the above-described configuration, in the conventional apparatus, when filling the grains, the bag bottom receiving plate is raised, the input grains are dropped, and the bag is deformed due to the crease of the mouth of the bag. By the action, the grains during filling may spill outside the bag, but the suction action of the second fixed suction cup 42a and the movable suction cup 42b causes the bag bottom receiving plate to rise after the filling of the grains is started. By continuing until the filling is completed, it is possible to hold the central portion of the opened mouth portion of the bag during that time, and it is possible to prevent the spilling of the grain to the outside of the bag during the filling of the grain.

The bag holding mechanism 5 (see FIGS. 4 to 7)
Both ends of the mouth 11 of the bag 10 which are supplied by the bag unloading mechanism 3 and opened by the rotation of the auxiliary chutes 63, 63 described later are gripped by the bag opening mechanism 4 during the filling of the grains. Yes, two fixed grippers 5
1 and 51, and two movable grippers 52, 52 which can be moved toward and away from the fixed gripper.
Is fixed to a portion corresponding to both ends of the bag 10 outside the first fixed suction cups 41a, 41a in the front side wall portion 40b of the mounting member 40, and the other movable grippers 52, 52 are connected to the rear side wall portion of the mounting member 40. Attached to the piston rods 53a, 53a of the bag holding cylinders 53, 53 fixed to the rear surface of 40c, are provided so as to be able to approach and separate from the fixed grippers 51, 51. The piston rods 53a, 53a of the movable grippers 52, 52 are provided so as to be able to expand and contract through the holes 40e, 40e of the rear wall portion 40c.
Located inside. The operation of the bag holding cylinder 53 in the bag holding mechanism 5 is controlled by the control device,
In connection with the operation of the bag holding cylinder 53, the movable gripper 5
A detector Sw8 for detecting the position at which the gripper 2 presses the fixed gripper 51, that is, the gripping position, is provided (see FIG. 5), and this detector is connected to the control device, and the detection results are sent to the control device. . Also, fixed grippers 51,
51 and the movable grippers 52, 52 are provided with a hard elastic body such as urethane rubber provided with concave and convex grooves of a shape meshing with each other on the surface, and the lower portions of both grippers 51, 52 are provided with the bag 10 to be supplied. It has a shape cut obliquely so as to guide the invasion and open downward so as to easily and surely enter between the grippers (see FIG. 5).

Upper wall 4 of mounting member 40 having a substantially inverted U-shaped cross section
The input hopper 6 is mounted on the upper wall portion 40a so that the input port 61 of the input hopper 6 is positioned above the hole 40g provided in the center portion of the upper portion 40a.
It is supported by 62. A pair of auxiliary chutes 63, 63 which can be opened and closed are disposed below the input port 61 of the input hopper 6 (FIGS. 2 and 6). It is formed in a U-shaped cross section having both side walls, and is fixed to a rotation shaft 64 supported by front and rear shaft support plates fixed to an upper wall portion 40 a of the mounting member 40 having a substantially inverted U-shaped cross section, and is rotated. The shaft 64 is driven to rotate by a rotary cylinder 65 attached to a front shaft support plate. A pair of auxiliary chutes 6 configured as described above
3 and 63 are always in a state of closing the lower part of the charging port 61 of the charging hopper 6 (the position shown by the solid line in FIG. 6), and the first sucker group 41 and the second sucker group 42 are operated to When the mouth is opened, the rotating cylinders 65, 6
5 operates to rotate the pair of auxiliary chutes 63, 63, respectively. And a pair of auxiliary chutes 63, 63
The tip portion passes through a hole 40g provided in the upper wall portion 40a of the mounting member 40 and rotates until its bottom wall becomes parallel (the position shown by the broken line in FIG. 6, and the auxiliary chute 63 in FIG. 7). , 63). In this manner, the pair of auxiliary chutes 63, 63 rotate while entering the mouth of the opened bag 10 located below the tip of the side wall through the hole 40 g, and close the mouth of the bag 10. The opening is further expanded to secure the opening, and at the time of filling the grain, the grain is guided into the bag 10. In addition,
The operation of the rotary cylinders 65, 65 for rotating the pair of auxiliary chutes 63, 63 is controlled by the control device, and the auxiliary chutes 6
A detector Sw9 for detecting the open position of No. 3 is provided (see FIG. 6), and this detector is connected to the control device.

Further, a bag pressing mechanism 67 (see FIGS. 1 and 2) for hitting the side of the bag so as to securely store the grains when the bag is filled is arranged on the side of the frame 1, and The bag pressing mechanism is provided on a bag pressing mechanism support base 67a fixed to the base 1a and has a bag pressing cylinder 68 and a bag pressing plate 69 attached to its piston rod. During this operation, the cylinder piston mechanism is operated, and the side surface of the bag 10 is pressed and beaten several times by the bag tapping plate 69 to securely store the grains. In addition, the piston rod and the bag pressing and tapping plate 69 are formed so as to be movable through a discharge guide plate 82 of the discharge mechanism 8 and a hole 88 provided in the discharge frame 83, which will be described later.

2 and 3 below the grain filling section.
As shown in FIG. 5, a bag bottom receiving plate 72 having a rectangular shape in a top view is provided. The bag bottom receiving plate 72 is provided with a piston rod 71a of a bag bottom raising cylinder 71 attached to a support plate 73 fixed to the base 1a. It is attached to the upper end. A pair of guide rods 74 are provided on the lower surface of the bag bottom receiving plate 72 to be guided and guided by the through holes of the support plate 73, and guide the vertical movement of the bag bottom receiving plate 72. The bag bottom receiving plate 72 driven by the bag bottom raising cylinder 71 in the up and down direction is always located at a lowered position, and the bag 1 filled with grains is operated by the operation of the bag bottom raising cylinder 71.
It is configured to be able to move upward to support the bottom 12 of the zero.

As shown in FIGS. 3 and 8, the bag opening mechanism 4 and the bag gripping mechanism 5 disposed in the filling portion of the grain slightly separate the supplied bag 10 from the bag bottom receiving plate 72. In the state, the bag 10 is provided at a height at which the bag 10 is sucked, opened, and gripped, and the bag 10 gripped by the bag gripping mechanism 5 is held in a suspended state at the time of starting the filling of the grain, and the bottom 12 of the bag 10 is held.
When the bag bottom receiving plate 72 is lifted by the operation of the bag bottom raising cylinder 71, the folded portion of the bag 1 is filled with the grains.
The bottom portion 12 is received and supported by the bag bottom receiving plate 72. When the gripping of the bag gripping mechanism 5 is released at the end of the filling, the bag 10 is lowered together with the bag bottom receiving plate 72 while being supported by the bag bottom receiving plate 72 to prepare for the bag discharging step.

The bag opening mechanism 4 and the bag holding mechanism 5
1 and 2, a bag discharging mechanism 8 provided below the frame 1 has a discharging cylinder 8 on one side of the frame 1. As shown in FIG.
1, the discharge frame 83 fixed to the tip of the piston rod 81a is usually located on the other side (left side in FIG. 2) of the frame 1. The discharge guide plate 82 is attached to the discharge frame base 83 and is curved so as to conform to the side shape of the bag filled with grains.
The discharge frame 83 and the discharge guide plate 82 are provided so as to be movable along two guide shafts 85 and 86 arranged in front and rear and one guide shaft 87 arranged in the upper rear part. Further, holes 88 are formed in the discharge guide plate 82 and the discharge frame base 83 so that a bag pressing and striking plate 69 that taps the side portion of the bag 10 when filling the bag can relatively penetrate.

Next, the operation of the above-described embodiment and its control mode will be described with reference to the flowcharts shown in FIGS.

In response to a bag filling command from a control unit (not shown), the bag supply cylinder 33 of the bag unloading mechanism 3 is operated to extend its piston rod 33a downward. Sucker holder 32
And the suction cups 31 also descend (S1). The suction action is started by the operation of the vacuum system of the suction cup 31 (S3).
When the uppermost bag 10 comes in contact with the uppermost bag 10 of the loaded bags, the uppermost bag 10 is sucked. Here, when the bag supply pressure switch Sw4 is turned on by the detection of the bag supply pressure switch Sw4 (S4), the bag supply cylinder 33 contracts its piston rod 33a and moves the suction cup holder 32 and the plurality of suction cups 31 upward. (S6). The suction cup 31 is lifted while sucking the bag 10, and sucks and takes out one bag 10 from the bag mounting table 2. If the bag supply pressure switch Sw4 does not turn on within a predetermined time, the operation of the apparatus is stopped as a suction failure of the suction cup (S5).

After the suction cup 31 sucking the bag 10 is lifted and the fixed position detection switch Sw1 of the suction cylinder 33 is turned on (S7), a rotary motor (not shown) is operated (S7).
8) until the rotation position detector Sw3 is turned on,
5, the bag supply cylinder 33 is rotated backward by about 90 degrees as shown by a two-dot chain line in FIG. 3 (S9 to S9).
10). The rotation of the bag supply cylinder 33 causes the suction cup 3
The bag 10 adsorbed on the first and the first 31 has the mouth 11 facing upward and the first fixed suction cup 41a of the bag opening mechanism 4 and the first fixed suction cup 41a.
It is supplied between the movable suction cups 41b, between the second fixed suction cups 42a and the second movable suction cups 42b, and further between the fixed grippers 51 and the movable grippers 52 of the bag gripping mechanism 5. The bottom 12 of the bag 10 supplied at this time is the bag bottom receiving plate 7 of the frame 1.
It is held in a state of being suspended a little from 2.

The bag opening mechanism 4 contracts the piston rod 45a by the operation of the opening cylinder 45, and the first movable suction cup 41b and the first movable suction cup 41b are moved through the drive frame 47 which is guided and moved by the guide shaft 49. (2) The movable suction cup 42b is connected to the first fixed suction cup 41a and the second fixed suction cup 42a.
(S11). The first sucker group 41 and the second sucker group 42 are provided with the bag 10 supplied by the bag removing mechanism 3 and adsorbed on the sucker 31.
Is pressed from both sides, and the pressing is detected by the closing position detector Sw6 related to the opening cylinder 45 (S12), the first valve 10 in the vacuum path of the bag opening mechanism is opened.
With both the first and second valves 102 in the ON state,
The suction action of the first suction group 41 and the second suction group 42 is started, and both surfaces of the mouth 11 of the bag 10 are sucked (S
13). At the same time, the suction cup 31 of the bag removing mechanism 3 stops the suction (S14), and the bag removing mechanism 3 is returned to the standby position for bag removal by a rotating motor (not shown) (S15 to S17).

Thereafter, the first movable suction cup 41b and the second movable suction cup 42b are sucked on one surface of the mouth portion 11 of the bag 10 by the extension movement of the piston rod 45a due to the operation of the opening cylinder 45 (S18). It moves backward so as to be separated from the first fixed suction cup 41a and the second fixed suction cup 42a, and opens the mouth portion 11 of the bag 10. In this state, the extended fixed position of the piston rod 45a is detected by the fixed position detector Sw5 related to the opening cylinder 45 (S1).
9).

Next, the detection result (S19) of the fixed position detector Sw5 for detecting the opening of the bag mouth 11 and the opening pressure switch Sw7 in the vacuum path of the first and second suction cup groups 41 and 42 are turned on. On condition of the state (S20), the rotating cylinders 65 of the pair of auxiliary chutes 63 are operated (S22), and the pair of auxiliary chutes 63 are respectively rotated. The auxiliary chute 63 passes through the hole 40g provided in the upper wall portion 40a of the mounting member 40 at its tip end portion, and enters the opened mouth portion 11 of the bag 10 held thereunder. The auxiliary chute 63 rotates until the bottom walls of the auxiliary chute 63 become parallel to each other, that is, until the rotary opening position detector Sw9 related to the rotary cylinder 65 is turned on (S23). At this time, the side walls of the pair of auxiliary chutes 63 rotate while entering the mouth portion 11 of the bag 10, thereby expanding the mouth portion 11 of the bag 10 to secure the opening. Then, it is detected that the auxiliary chute 63 is completely rotated (S23), and the first of the bag opening mechanism is detected.
When a good detection result (S24) is obtained by the opening pressure switch Sw7 of the vacuum path of the second suction cup group 41, 42, the bag holding cylinder 53 of the bag holding mechanism 5 is operated (S26).

At this time, even in the bag 10 in which either one of the front and back sides of the mouth portion 11 of the bag 10 has a tendency to break inside the bag, the first and second suction cup groups 41, 4
2, the opening 11 can be sufficiently opened. However, by turning the pair of auxiliary chutes 63 into the opened bag opening 11, a part of the auxiliary chute 63 is opened. In this state, the upper edge of the opened mouth 11 comes into contact with and presses against the upper edge, and a gap is formed between the opened mouth of the bag and the auxiliary chute. Is started, a large amount of grains may spill out of the bag 10. Therefore, in this embodiment, in order to solve such a situation, the detection of the suction state by the opening pressure switch Sw7 in the vacuum path of the first and second suction cup groups 41 and 42 is performed by the pair of auxiliary chutes 63. This is performed before the start of rotation and after the end of rotation (S20 to S24). Therefore, in S20, not only when the opening pressure switch Sw7 of the vacuum path of the first and second suction cup groups is not turned ON, but also in S2.
In 3 to S24, when the rotation of the pair of auxiliary chutes 63 is completed, the opening pressure switch Sw of the vacuum path of the suction cup is set.
When the suction state by the suction port 7 is defective (the opening pressure switch Sw7 is in the OFF state), the opening of the bag mouth portion by the suction cup is made once, but thereafter, the above-described situation has occurred. It is assumed that the apparatus is configured to stop the subsequent operation of the apparatus (S2
1, S25).

By the operation of the bag gripping cylinder 53, the piston rod 53a is extended, and the movable gripper 52 is protruded in the direction of the fixed gripper 51 until the bag gripping operation position detector Sw8 is turned on. Both ends near 11 are gripped (S27). Thereafter, the second valve 102 in the vacuum path of the bag opening mechanism 4 is turned off to stop the suction of the first fixed suction cup 41a and the first movable suction cup 41b. The second fixed suction cup 42a and the second movable suction cup 42b are continuously in a suction state (S28). This state is illustrated in FIG.

Subsequently, the filling of the bags, which have been measured by the measuring device in advance, into the grains is started (S29 to S30). The grains in the measuring tank are filled into the bag 10 via the charging hopper 6 and the auxiliary chutes 63 by opening the discharge port of the measuring tank with the opening / closing cylinder. At the time of this filling, the bag 1 gripped by the bag gripping mechanism 5
8, as shown in FIG. 8, the bag 1 is slightly suspended from the bag bottom receiving plate 72 and is held in a suspended state.
Even if the bottom part 12 of 0 has a folded part, the folded part of the bottom part 12 is expanded by the fall of the grain. And
After a lapse of time that the folded portion of the bottom portion 12 of the bag 10 is sufficiently spread by the grains to be filled, the bag bottom raising cylinder 71 is operated to raise the bag bottom receiving plate 72, and thereafter,
The bag bottom receiving plate 72 receives and supports the bottom 12 of the bag 10 from below while the grains are being filled (S33 to S3).
4). When the grains are being filled, the bag pressing mechanism 67 disposed on the side surface of the bag gripped by the bag gripping mechanism 5 has a cylinder piston mechanism 68 when the grains are being filled. By the operation of 68a, the side surface of the bag 10 is pressed and beaten several times by the bag pressing plate 69, and the grains are securely and densely stored (S32).

When the filling is completed (S35), the first valve 101 in the vacuum path of the bag opening mechanism 4 is turned off, and the second
The suction of the fixed suction cup 42a and the second movable suction cup 42b is stopped (S36). As described above, after the filling of the grains is started, the suction operation of the second sucker group 42 of the bag opening mechanism 4 is continued until the bag bottom receiving plate is lifted and the filling is completed.
As shown in FIG. 2, the central portion of the mouth of the bag 10 can be held by suction during the filling, and the grain can be reliably prevented from spilling out of the bag during the filling of the grain. .

Then, the opening / closing cylinder of the measuring tank is closed (S37), and at the same time, the auxiliary chutes 63, 63 are rotated in the opposite direction to return (S38). The gripper 51 and 52 are separated from each other to release the grip of the bag 10 (S39), and the bag bottom receiving plate 72 is released.
Falls while supporting the bag 10 (S41). Thereafter, the bag 10 which has been lowered together with the bag bottom receiving plate 72 is pushed out to the side of the frame 1 by the movement of the discharge frame 83 and the discharge guide plate 82 by the operation of the discharge cylinder 81 (S42 to S43). Then, it can be transported to a suitable position by a subsequent conveyor or the like.

[0044]

The present invention is configured as described above. In the bag opening mechanism, the first sucker group consisting of the first fixed suction cup and the first movable suction cup and the second fixed suction cup and the second movable suction cup are used. By providing the second group of suction cups, even if the bag is creased in the vicinity of the mouth of the bag and has a tendency to break either one of the front and back surfaces of the mouth of the bag, the second Since the fixed and movable suction cups of the bag suck the periphery of the fold and the upper part thereof reliably, the mouth of the bag can be prevented from being bent inward, and the bag can be reliably opened. A first valve and a second valve are disposed in a vacuum path of the first suction group and the second suction group of the opening mechanism so that the first suction group and the second suction group can be individually operated. The timing of each operation. It can be set, and in the conventional device, after the filling of the grains is started, the action of raising the bag bottom receiving plate, dropping the input grains, and further deforming due to the fold of the mouth portion of the bag, etc. Although the grains during filling may have spilled out of the bag, by continuing the suction action of the second suction cup group after the filling of the grains is started, the bag bottom receiving plate is raised and the filling is completed. During the filling, the central portion of the bag mouth can be held by suction, and the spilling of the grains to the outside of the bag during the filling of the grains can be reliably prevented.

Further, after the bag supplied to the filling section by the bag removing mechanism is opened by the bag opening mechanism and the opening of the bag is surely expanded by the rotation of the pair of auxiliary chutes, the bag is opened by the bag gripping mechanism. In the first and second suction cup groups of the bag opening mechanism and the gripper of the bag holding mechanism, one of them is fixed to the mounting member of the frame, and the two ends of the bag are controlled to be gripped. Only the other is movable, and it is made to move toward and away from the suction cup or gripper fixed by expansion and contraction by the cylinder means provided on the mounting member, and the opening and gripping of the bag uses a complicated link mechanism or the like. Without using a simple mechanism, it can be controlled reliably.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing an automatic bagging apparatus for grains and the like according to the present invention.

FIG. 2 is a schematic front view showing the automatic bagging apparatus for grains and the like according to the present invention, omitting a bag placing table, a bag removing mechanism, and the like.

FIG. 3 is a main part side view showing a relation between a bag removing mechanism, a bag opening mechanism, and a bag bottom receiving plate in the automatic bag filling apparatus for grains and the like of the present invention.

4 is a partial cross-sectional view showing a relationship between a bag opening mechanism and a bag gripping mechanism in the automatic bag filling apparatus for grains or the like according to the present invention, taken along line AA in FIG. 3;

FIG. 5 is a sectional view taken along line BB in FIG. 4;
4 shows a bag gripping mechanism.

FIG. 6 is a schematic partial cutaway view showing a relationship between a charging hopper, a pair of auxiliary chutes, and a bag in the automatic bagging apparatus for grains and the like of the present invention.

FIG. 7 is a partial cross-sectional view corresponding to FIG. 4, showing a state in which the bag gripping mechanism grips both ends of the bag and the second sucker group of the bag opening mechanism is sucking the bag.

FIG. 8 is a schematic diagram showing a relation between a bag holding mechanism, a bag and a bag bottom receiving plate in the automatic bagging apparatus for grains and the like according to the present invention.

FIG. 9 is a diagram showing a schematic configuration of a vacuum path of a first sucker group and a second sucker group in a bag opening mechanism in the automatic bagging apparatus for grains and the like of the present invention.

FIG. 10 is a flowchart showing a control mode of the automatic bagging apparatus for grains and the like of the present invention.

FIG. 11 is a flowchart following the flowchart of FIG. 10 showing a control mode of the automatic bagging apparatus for grains and the like of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 frame 2 bag mount 3 bag unloading mechanism 4 bag opening mechanism 41 first sucker group 41a first fixed suction cup 41b first movable suction cup 42 second suction cup group 42a second fixed suction cup 42b second movable suction cup 45 open cylinder 5 bag grip Mechanism 51 Fixed gripper 52 Movable gripper 53 Bag gripping cylinder 6 Input hopper 63 Auxiliary chute 65 Rotating cylinder 71 Bag bottom raising cylinder 72 Bag bottom receiving plate 8 Bag discharging mechanism 10 Bag 40 Mounting member 40a Upper wall 40b Front wall 40c Rear wall 40g hole 67 bag pushing mechanism 100 vacuum generator 101 first valve 102 second valve

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seizou Kawashima 4290 Fujioka, Fujioka-cho, Shimotsuga-gun, Tochigi Prefecture Inside Tiger Kawashima Co., Ltd.

Claims (4)

[Claims] 1. A bag (2) for loading a plurality of bags, the bag is taken out of the bag carrier (2), and is disposed above the bag carrier (2) so as to supply the bags to a filling portion such as grains. A bag removing mechanism (3) and the bag removing mechanism (3) at the filling section
Opening mechanism (4) for receiving the bag supplied by the bag opening device and opening the mouth of the bag, and the bag opening mechanism (4) for gripping both ends of the bag opened by the bag opening mechanism (4). ) And a charging hopper (6) for filling the opened bags with grains and the like.
And a pair of auxiliary chutes (63) provided to be openable and closable below the input hopper (6), and a bag discharging mechanism (8) for discharging a bag in which bagging of kernels or the like has been completed. In the automatic bag filling apparatus for grains or the like, the bag opening mechanism (4) is provided so as to be capable of moving toward and away from each other by vacuum-suctioning both sides of a mouth portion of a bag supplied by a bag unloading mechanism (3). At least two pairs of the first suction cups (41a, 41b), and both surfaces of a portion closer to the mouth than the suction portion of the first suction cup are vacuum-adsorbed, and the first suction cups are provided so as to be able to move toward and away from each other. And two suction cups (42a, 42b). The first suction cup and the second suction cup are configured to open the mouth of the bag by moving away from each other, and the first suction cup ( 41a, 41b) and the second suction cup (42a, 42b) are turned on. An automatic bagging device for grains and the like, comprising a first valve (101) for turning off and a second valve (102) for turning on and off only the first suction cups (41a, 41b). 2. A bag is taken out from a bag carrier (2) for loading a plurality of bags, and is disposed above the bag carrier (2) to supply the bag to a filling portion for grains or the like. A bag removing mechanism (3) and the bag removing mechanism (3) at the filling section
Opening mechanism (4) for receiving the bag supplied by the bag opening device and opening the mouth of the bag, and the bag opening mechanism (4) for gripping both ends of the bag opened by the bag opening mechanism (4). ) And a charging hopper (6) for filling the opened bags with grains and the like.
And a pair of auxiliary chutes (63) provided to be openable and closable below the input hopper (6), and a bag discharging mechanism (8) for discharging a bag in which bagging of kernels or the like has been completed. In the automatic bag filling device for grains or the like, the bag opening mechanism (4) is configured to vacuum-adsorb at least one surface of a mouth portion of a bag supplied by a bag unloading mechanism (3).
A plurality of first fixed suction cups (41a), a second fixed suction cup (42a) for vacuum-sucking a portion closer to the mouth than a suction portion of the first fixed suction cup on one surface of the mouth of the bag, and cylinder means (45). , 45a) so as to be able to move toward and away from the first and second fixed suction cups (41a, 42a), and to the suction portions of the first and second fixed suction cups near the mouth of the bag. It has at least two first movable suction cups (41b) and second movable suction cups (42b) for vacuum-sucking the corresponding other surface portions, respectively, and is provided for the first and second fixed suction cups (41a, 42a). The first and second movable suction cups (41b, 42b) are configured to open the mouth of the bag by moving away from each other, and the vacuum path of the suction cup includes the first fixed suction cup and the first movable suction cup. 1 suction cup group (41) and the Fixed suction cup and the second first valve to turn on and off the second suction cup groups of movable sucker (42) (1
01) and a second bag (102) for automatically turning on and off only the first suction cup group (41). 3. A first valve (101) and a second valve (102) of a vacuum path of a suction cup are turned on for a bag supplied to a filling portion such as a grain by a bag extracting mechanism (3). First sucker group (41) and second sucker group (42)
Activate the suction to open the mouth of the bag, and
After rotating the pair of auxiliary chutes (63) into the opened mouth of the bag and holding both ends of the bag by the bag holding mechanism (5), the second valve (102) is turned off and the second valve (102) is turned off. The grain according to claim 1 or 2, wherein the suction action of the first suction cup group (41) is stopped and only the suction action of the second suction cup group (42) is continued to fill the grains and the like. Automatic bagging equipment for granules. 4. The bag holding mechanism (5) includes a bag opening mechanism (4).
The bag opening mechanism (4) is arranged outside both sides of the bag opening mechanism (4) in such a manner as to grip both ends near the mouth of the bag opened, and is disposed corresponding to both ends near the mouth of the bag. A fixed gripper (51), and two movable grippers (52) provided so as to be able to move toward and away from the fixed gripper (51) by cylinder means (53, 53a). A gripper (52) is connected to the fixed gripper (5).
1) It is configured to grip both ends near the mouth of the bag by moving toward and away from the bag, and a pair of auxiliary chutes (63) are provided with a rotating cylinder (65).
Is opened and closed, and when opened, the bag enters the mouth portion of the bag opened by the bag opening mechanism (4) to expand the mouth portion of the bag and feeds the measured grains and the like into the hopper (6). And a bag bottom receiving plate (7) disposed below the filling portion to guide the bag to fill the bag reliably.
(2) The bag bottom raising cylinder means (71, 71a) is provided so as to be movable up and down, and is configured to support the bottom of the bag at the rising position when filling grains or the like. 4. The automatic bagging apparatus for grains and the like according to any one of 1 to 3.