JP2002225827A - Bag unpacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag unpacking device which enhances operating efficiency by enabling sequential, automatic and efficient execution of a series of operations such that grain is taken out of a bag body and accumulated at a prescribed place. SOLUTION: In the bag unpacking device 10, the bag bodies H, which house the grain and are stacked on a pallet P, are caught by a catching part 18, fed to a cutter part 44 as they are, and cut under a state where the grain are housed in the bag bodies H. Small pieces of the bag body H and the grain inside the bag body H after cutting are separated and sorted for accumulation in a sorting part 46. Consequently, the series of operations, such that the grain is taken out of the bag body H and accumulated at the prescribed place, can be automatically and efficiently carried out in sequence in order to enhance the operating efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unpacking apparatus for taking out grains from a bag containing grains such as rice grains therein and collecting the grains at a predetermined location.

[0002]

2. Description of the Related Art Generally, when grains (for example, rice grains such as brown rice) are stored in a storage or carried in / out of a processing facility, the grains are of a predetermined size. It is housed in a predetermined grain weight in a paper grain bag,
Many cereal bags are sequentially stacked on a predetermined pallet, and in this state, each pallet is stored in a storage or transported between processing facilities. Furthermore, when performing subsequent processing, for example, when collectively storing in a storage tank or when processing rice milling or the like with a processing device, the grains contained in such a grain bag are taken out of the grain bag again, It is embedded in storage tanks and individual processing equipment.

Heretofore, conventionally, when the grain is taken out again from the grain bag transported to the storage tank or the processing apparatus as described above, the grain bags stacked on the pallet are further removed one by one by a human operator. In addition, these cereal bags were manually opened, and the cereal inside was taken out for each bag. That is, even if a large number of grain bags are transported to a storage tank or a processing device at a time by mechanical force (e.g., a hawklift), the subsequent work of taking out grains has to be performed manually for each bag.
A great deal of labor is required, the workability is extremely poor, and measures for this have been eagerly desired.

The present invention has been made in order to solve the above-mentioned problems, and automatically and automatically collects cereals from a bag containing grains such as rice grains at a predetermined location. It is an object of the present invention to provide a bag opening apparatus that can be implemented extremely efficiently and greatly improves workability.

[0005]

According to a first aspect of the present invention, there is provided a bag opening apparatus comprising a disk blade having a substantially disk shape and having a predetermined number of disk blades fixed on a rotating shaft. A plurality of shafts are arranged in a substantially parallel configuration, and a cutter unit configured to cut a bag body containing grains therein by rotating the disk blade shaft, and suspended between the disk blades of the disk blade shaft. The lower part is a weight part having a predetermined weight, and a hanging member that is prevented from rotating due to the rotation of the disk blade shaft, a bag piece cut by the cutter part and the grain are separated and sorted. And a sorting unit that respectively accumulates at a predetermined location.

[0006] In the bag opening apparatus according to the first aspect, the bag body containing the grain therein is cut by the cutter unit, and the cut bag piece and the internal grain are separated by the sorting unit. Sort and accumulate at predetermined locations. For this reason, a series of grain removal operations of taking out grains from the bag and accumulating them at predetermined locations can be performed sequentially and automatically and extremely efficiently, and the work efficiency is greatly improved.

Here, the cutter section is formed by disposing a plurality of disk blade shafts, which are substantially disk-shaped and have a predetermined number of disk blades having blades formed on the outer periphery thereof, fixed on a rotary shaft in a substantially parallel manner. Since it is configured, the bag body can be efficiently and finely cut by rotating the disk blade shaft. Therefore, the grain is less likely to be caught by the cut bag piece, and the bag piece and the grain can be reliably separated and sorted.

Further, since the lower part of the suspension member suspended between the disk blades of the disk blade shaft is a weight having a predetermined weight, the rotation of the suspension member accompanying the rotation of the disk blade shaft is hindered. You. For this reason, while the disk blade shaft rotates, the hanging member becomes difficult to rotate, and the bag piece is prevented from winding around the rotation shaft, whereby the bag piece gradually becomes multiplexed outside the rotation shaft. Can prevent the disk blade shaft from being unable to cut the bag body.

According to a second aspect of the present invention, in the bag opening apparatus according to the first aspect, the weight portions of the suspension members suspended on the adjacent disk blade shafts can contact each other. It is characterized by that.

In the bag opening apparatus according to the second aspect, since the weight portions of the suspension members suspended on the adjacent disk blade shafts can contact each other, the suspension members cannot rotate. Thus, the bag piece is prevented from being wrapped around the rotation shaft. Thus, it is possible to properly prevent the disk blade shaft from being unable to cut the bag due to the multiple bag pieces gradually being wound around the outside of the rotation shaft.

According to a third aspect of the present invention, in the bag opening apparatus according to the first or second aspect, the outer periphery has a circular shape and is provided integrally with the disk blade in a state in which the center thereof is aligned. A flange for fixing the disk blade to the rotating shaft, and eliminating a gap between the suspension member and the flange, and an upper outer periphery of the suspension member at an outer periphery of the flange. A step between the outer periphery of the upper portion of the suspension member and the outer periphery of the flange is eliminated by forming the outer periphery of the suspension member into a semicircular shape.

In the bag opening apparatus according to the third aspect, the gap between the flange provided integrally with the disk blade and the suspension member is eliminated, and the outer periphery of the upper portion of the suspension member extends along the periphery of the flange. The semicircular shape eliminates the step between the outer periphery of the upper portion of the suspension member and the outer periphery of the flange. For this reason,
The bag piece is prevented from being wound between the suspension member and the flange, and the bag piece is more preferably prevented from being wound around the rotation shaft. Thereby, it is possible to more effectively prevent the disk blade shaft from being unable to cut the bag body due to the multiple bag pieces gradually being wound around the outside of the rotation shaft.

[0013]

FIG. 1 is a perspective view schematically showing the entire structure of a bag opening apparatus 10 according to an embodiment of the present invention, and FIG. This is shown in the figure. FIG. 3 is a front view of the bag opening apparatus 10, and FIG. 4 is a plan view of the bag opening apparatus 10. Further, FIG. 5 shows the bag opening apparatus 10 in a rear view.

The unpacking device 10 is provided with a pallet mounting portion 12 on the front side thereof. The pallet placing unit 12 includes a table plate 14, which can be moved up and down by a hydraulic drive mechanism (not shown). On the table plate 14, a pallet P in which a plurality of paper bags H each containing a grain therein are sequentially stacked in a stacked state is placed as it is.

The pallet placing portion 12 is provided with a plurality of (in this embodiment, six on one side and a total of 12 on both sides) bag detecting sensors 16 on a side frame 12A. I have. These bag detection sensors 16 are infrared light sensors, and the topmost bag H among the bags H on the pallet P placed on the pallet placement unit 12.
Can be detected individually, and a detection signal can be output for the vertical movement control of the table plate 14 and the operation control of the gripper 18 described later. Thereby, the table plate 14 of the pallet mounting portion 12 can hold the uppermost bag H at a predetermined position, and can control the gripping order of the gripper 18 described later. It is. That is, a predetermined gripping pattern (gripping position) is programmed according to the arrangement pattern of the bags H on the pallet P, and the bag H located at the highest position is detected by the bag detection sensor 16 and described later. The gripper 18 is operated.

On the other hand, a grasping portion 18 is provided above the bag opening device 10, that is, above the pallet placing portion 12. The gripping portion 18 is provided with a left and right drive guide 20 along the left and right direction of the device, and a front and rear drive guide 22 along the front and rear direction of the device. The front and rear drive guides 22 are supported by the left and right drive guides 20, and the front and rear drive guides 22 can move along the left and right drive guides 20.

The front and rear drive guide 22 is provided with a gripper 24 and a driving pin 26. Grab claws 2
Numeral 4 is composed of a plurality of claws formed in a shape of a hand, and an air cylinder 28 is connected to the gripping claws 24. The operation of the air cylinder 28 causes the gripping claw 24 to rotate vertically. The driving pin 26 is composed of a plurality of thin pins protruding toward the front side of the apparatus, and an air cylinder 30 is similarly connected to the driving pin 26. The operation of the air cylinder 30 causes the driving pin 26 to move forward and backward. Furthermore, these gripping claws 24 and driving pins 26
Are integrally movable along the front and rear drive guide 22.

That is, the gripping claw 24 and the driving pin 26
Moves forward along the front and rear drive guide 22 to move forward to a position where the uppermost bag H among the bags H on the pallet P placed on the pallet placing portion 12 can be grasped. And can be moved backward to a delivery guide section 34 described later. In addition, the front and rear drive guides 22 are
, The gripping claws 24 and the driving pins 26 can move in the width direction of the apparatus corresponding to the uppermost bag H on the pallet P.
Further, the air cylinder 28 and the air cylinder 30 are operated in a state where the gripping claw 24 and the driving pin 26 are moved forward to a position where the bag H positioned at the uppermost position on the pallet P can be gripped. Pierces the bag H from above and the driving pin 26 pierces the bag H from behind, and the gripping claws 24 and the driving pins 26
The bag H can be grasped by the cooperation of.

The order in which the grasping claws 24 and the driving pins 26 grasp the bag H on the pallet P is performed according to the previously set program as described above.

A moving position detecting sensor 32 is attached to the gripper 18 having the above-described structure. The movement position detection sensor 32 includes a gripper 24 and a driving pin 26.
Is moved forward along the front and rear drive guide 22,
The uppermost bag H on the pallet P can be detected. Based on the detection signal of the movement position detection sensor 32, the gripper 24 and the driving pin 26 move forward along the front and rear drive guide 22. Is controlled. In the present embodiment, the movement position detection sensor 32
Detects the bag, the gripper 24 and the driving pin 2
The forward movement along the front / rear drive guide 22 is suddenly decelerated and stopped at a point, for example, 150 mm before the bag H.

The bag opening device 10 is provided with a delivery guide section 34 at the rear side. This delivery guide part 3
Reference numeral 4 denotes a funnel-shaped receiving hopper 36, which is provided corresponding to the end of the retreat-side movement path of the gripping section 18 described above. Further, a rotary plate 38 is attached to a front upper end corner of the receiving hopper 36.
The rotating plate 38 is rotatably mounted between a horizontal state and an inclined state following the side wall of the receiving hopper 36, and is further connected to an air cylinder 40. The operation of the air cylinder 40 causes the rotating plate 38 to rotate vertically from a horizontal state to an inclined state.

A release position detecting sensor 42 is attached to the delivery guide section 34. The release position detection sensor 42 detects that the bag H, which has been grasped and moved rearward, has reached the rotating plate 38 when the grasping claw 24 and the driving pin 26 move backward along the front and rear drive guide 22. The release position detection sensor 4
2, the air cylinder 28 and the air cylinder 30 are operated, the gripping of the bag H by the gripping claws 24 and the driving pins 26 is released, and the air cylinder 40 is operated after a predetermined timing. hand,
In this configuration, the rotating plate 38 is rotated from a horizontal state to an inclined state. Accordingly, the gripping of the bag H by the gripping claws 24 and the driving pins 26 is released, and the rotating plate 3 is released.
When the bag 8 is tilted, the bag H is directly fed downward while being guided by the rotating plate 38.

As shown in detail in FIGS. 6 and 7, a cutter 44 is provided immediately below the lower end opening of the receiving hopper 36 of the delivery guide 34. This cutter unit 44
The support cylinder 66 includes a pair of side walls 66A facing each other in the front-rear direction of the device and a pair of side walls 66B facing each other in the width direction of the device. I have. A pair of side walls 6 of the support cylinder 66
A plurality of (six in the present embodiment) disk blade shafts 60 are bridged between 6A, and the plurality of disk blade shafts 60 are arranged in parallel along the apparatus width direction. Each of the disk blade shafts 60 is provided with a rotary shaft 62 having a polygonal cross section (in the present embodiment, a hexagonal cross section), and a predetermined number of disk blades 64 (on the same axis) on the rotary shaft 62 (on the same axis). (For example, 6)
Is provided. Each of the disk blades 64 has a substantially disk shape, and a corrugated blade is formed on the outer periphery. Each disk blade 64 has a cylindrical flange 7 having a circular outer periphery on both sides.
The hollow portion of the flange 70 has a polygonal cross section corresponding to the rotation shaft 62 (in this embodiment, a regular hexagonal cross section), and the hollow portion of the flange 70 has the same shape. 62. Except for the flange 70 fitting portion of each rotary shaft 62, a cylindrical collar 68 whose outer periphery is formed in a circle smaller than the outer periphery of the flange 70 is provided in a state where the centers thereof coincide with each other. A polygonal cross section corresponding to the rotating shaft 62 (in the present embodiment, a regular hexagonal cross section) is fitted to the rotating shaft 62.
Thereby, the sliding of the flange 70 along the rotation shaft 62 is prevented, and the disk blade 64 is fixed to the rotation shaft 62, and the disk blade 64 can rotate integrally with the rotation shaft 62 together with the flange 70.

Adjacent disk blade shafts 60 are paired (in the present embodiment, there are three pairs of disk blade shafts 60), and each pair of disk blade shafts 60 has a direction opposite to each other (a pair of disk blade shafts 60). (The direction between the disk blade shafts 60). Thereby, the bag H guided and fed from the rotary plate 38 of the delivery guide unit 34 can be received, and the bag H can be cut thin and reliably while the grains are stored.

A predetermined number (for example, two) of the disk blade shafts 60 located at the center of the cutter unit 44 are mounted higher (at a higher position) than the other disk blade shafts 60.
It is configured so that the impact when receiving the bag H from the rotating plate 38 is dispersed and softened. Further, the interval between the disk blades 64 fixed to the same disk blade shaft 60 (on the same axis) is separated by a predetermined distance (the interval A in FIG. 6 is increased to some extent), and the adjacent disk blade shafts 60 are arranged. Are mutually overlapped and close to each other (the interval B in FIG. 6 is narrowed).

Furthermore, the disk blade 64 of each disk blade shaft 60
A suspending member 72 as a suspending member, which is shown in detail in FIG. 8, is provided between the flanges 70 and between the flange 70 and the side wall 66A between the disk blade 64 and the side wall 66A of the support cylinder 66. Each hanging tool 72 is elongated in the vertical direction. A circular through hole 74 is formed in the upper part of the suspending tool 72.
Is formed, the diameter of the through hole 74 is made larger than the outer diameter of the collar 68, and the hanging tool 72 is inserted into the collar 68 in the through hole 74, so that the hanging tool 72 is
Hanged at zero. The lower portion of the hanging tool 72 is a weight portion 72A having a predetermined weight, and thereby the rotation of the hanging tool 72 accompanying the rotation of the disk blade shaft 60 is hindered. In addition, the weight portions 72A of the suspenders 72 suspended on the adjacent disk blade shafts 60 can contact each other.

Further, the thickness of the hanging tool 72 is
The distance between the suspension 70 and the flange 70 and the side wall 66A is the same as that between the suspension 70 and the flange 70 and the side wall 66A. The outer periphery of the upper part of the suspending tool 72 is formed in a semicircular shape along the outer periphery of the flange 70, so that the suspending tool 7
The step between the outer periphery of the upper part of the second and the outer periphery of the flange 70 is eliminated.

A sorting section 46 is disposed immediately below the cutter section 44. The sorting unit 46 is provided with a sorting net 48. The sorting net 48 includes the cutter unit 44
Thus, it is formed in a mesh shape smaller than the piece of the bag after cutting and larger than the grain inside, so that the piece of the bag after cutting and the inside grain can be separated and sorted. Therefore, the grains in the bag body H after being cut by the cutter unit 44 pass through the mesh of the sorting net 48, fall down as they are, are accumulated, and the bag pieces cut by the cutter unit 44 are This is a configuration that temporarily accumulates on the sorting net 48.

On the sorting net 48, a scraping bar 50 is provided. The scraping bar 50 is attached to a chain conveyor 52 arranged along the width direction of the apparatus. When the chain conveyor 52 is operated by a motor 56 connected to the chain conveyor 52, the scraping bar 50 is separated from the sorting net 48. It is configured to move on. Thereby, the bag pieces cut by the cutter unit 44 and collected on the sorting net 48 can be scraped out in the width direction of the apparatus and discharged to the outside through the discharge port 54.

Next, the operation of the present embodiment will be described.

In the bag opening apparatus 10 having the above structure, the bags H accommodating the grains are stacked in advance on the pallet P, and the pallet P on which the plurality of bags H are stacked is placed on the pallet by a forklift or the like. It is placed on the unit 12.

Here, the bags H stacked on the pallet P are, for example, in the case of "7 bags", as shown in FIG.
Are arranged in an "A arrangement pattern" as shown in FIG. 9, and further arranged thereon and arranged in a "B arrangement pattern" as shown in FIG. 9 (B). Thereafter, the "A arrangement pattern" and the "B arrangement pattern" They are sequentially and alternately repeated, and are usually stacked in seven to eight stages. For example, in the case of “5 bags”, they are arranged in a “C arrangement pattern” as shown in FIG. 9C, and further arranged in a “D arrangement pattern” as shown in FIG. 9D. Stacking, and then "C array pattern"
And the “D array pattern” are alternately and sequentially repeated, and are stacked up to a maximum of seven to eight stages as a whole.

A plurality of bags H stacked as described above
Is the table plate 1 of the pallet mounting portion 12 with the pallet P being stacked on the pallet P.
4.

Next, the unpacking device 10 is started. At this time, when the bag opening apparatus 10 is started, it is determined whether the bags H stacked on the pallet P are "7 bags" or "5 bags" as described above, and buttons are set. A button is set by selecting whether the arrangement pattern of the uppermost bag H is “A arrangement pattern” or “B arrangement pattern”, or “C arrangement pattern” or “D arrangement pattern”. Based on this setting operation, the order in which the bags are grabbed (in other words,
The gripping position is determined, and the subsequent operation is controlled.

When the apparatus is started by performing various setting operations as described above, the table plate 14 of the pallet placing section 12 is activated.
Rises, and when the topmost bag H reaches a predetermined position, the topmost bag H is detected by the bag detection sensor 16. Thereby, the table plate 14 is stopped, and the uppermost bag H on the pallet P is held at the predetermined gripping position. That is,
At this point, the three-dimensional (X-axis, Y-axis,
Of the gripping positions (in the Z-axis direction), the vertical gripping position (position in the Z-axis direction) is set.

Next, the gripper 18 is operated, and the bags H on the pallet P are sequentially gripped.

That is, the gripping claw 24 and the driving pin 26 move forward along the front / rear drive guide 22 toward one of the uppermost bags H on the pallet P, which is the target bag to be gripped. Further, when the movement position detecting sensor 32 detects the bag H, the forward movement of the grasping claw 24 and the driving pin 26 is rapidly decelerated, and the time before the bag H is moved by a predetermined distance (for example, 150 mm). Stopped at Further, when the gripping claw 24 and the driving pin 26 stop, the air cylinder 28 is simultaneously operated to rotate the gripping claw 24, and the gripping claw 24 is driven into the bag body H from above. At about the same time, the driving pin 26 is driven forward by the operation of the air cylinder 30, and the driving pin 26 is driven into the bag H from the rear side. As a result, the bag H is gripped by the claws 2
4 and the driving pin 26 are surely grasped.

Thereafter, the gripping portion 18 (grip claw 24 and driving pin 26) moves backward along the front and rear drive guide 22, and the bag H is gripped by the gripping claw 24 and driving pin 26. Delivery guide 3 as it is
It is carried to four. The bag body H is the delivery guide section 34
When the release position detection sensor 42 detects this, the air cylinder 28 and the air cylinder 30 are operated, and the gripping claw 24 and the driving pin 2 are moved.
The gripping of the bag H by 6 is released. Further, after a predetermined timing, the air cylinder 40 is operated, and the rotating plate 38 is rotated from the horizontal state to the inclined state. As a result, the bag H is dropped and fed downward while being guided by the rotating plate 38.

After the gripping of the bag H is released, the gripping claws 24 and the driving pins 26 further move back along the front and rear drive guides 22 to return to the initial position. After the bag H is dropped and fed, the rotating plate 38 rotates again from the inclined state to the horizontal state and returns to the initial position.

The bag H guided by the rotating plate 38 and fed downward reaches the cutter unit 44 which is already rotationally driven. In the cutter unit 44, the fed bag body H is cut by the plurality of disc blade shafts 60 while the grains are stored.

Further, the cut bag H (bag piece) and the grains inside fall into the sorting section 46 provided immediately below the cutter section 44. In the sorting unit 46, the cut pieces of the bag body and the grains therein are separated and sorted by the sorting net 48, and the grains in the bag body H after the cutting pass through the mesh of the sorting net 48. The bag pieces that have fallen down and are collected as they are, while being
8 temporarily accumulates.

Further, in the sorting section 46, the chain conveyor 52 has already been operated, and the cut bag pieces temporarily stored on the sorting net 48 are scraped out by the scraping bar 50 in the machine width direction. Are discharged from the discharge port 54 to the outside.

Thus, the unpacking process of the first bag H is completed. Thereafter, the same steps as described above are performed for the bags H,.
It is sequentially repeated in the order of.

When the second and subsequent bags H are to be gripped, the uppermost bag H of the bags H stacked on the pallet P has an arrangement pattern of "A arrangement". The operation of the gripping unit 18 is performed in accordance with a “bag gripping sequence (grip position)” which is set in advance based on whether the “pattern”, “B array pattern”, “C array pattern” or “D array pattern”. When the gripper 24 and the driving pin 26 move along the front and rear drive guides 22 and the front and rear drive guides 22 themselves move along the left and right drive guides 20, the gripper 24 and the driving pin 26 move on the pallet P. Is moved to the gripping position corresponding to the bag H of the second bag and thereafter. That is, grasping claw 2
4 and the driving pin 26 move in the horizontal direction, so that the three-dimensional (X-axis, Y-axis, and Z-axis) gripping positions of the bag body H (X-axis) , And the position in the Y-axis direction) are set, and the same steps as described above are sequentially repeated.

After all the uppermost bags H described above have been processed, the table plate 14 of the pallet placing portion 12 is raised again. When the next uppermost bag H reaches a predetermined position, the bag detection sensor 1
6, the table plate 14 is stopped. Thereafter, the same steps as described above are sequentially repeated.

In this way, when all the bags up to the lowermost stage H are processed, the table plate 14 of the pallet placing portion 12 descends and stops at the lowest position. The empty pallet P is removed from the table plate 14 by a forklift or the like, and a new pallet P on which bags H containing grains are stacked is placed instead.

As described above, in the bag opening apparatus 10 according to the present embodiment, the bags H containing the grains and stacked on the pallet P are grasped by the grasping portion 18 and the bag H is directly used as the cutter portion. In order to separate and accumulate the cut pieces of the bag body and the grains inside after cutting into the state in which the grains are accommodated by feeding to the bag 44, the grains are taken out of the bag body H to a predetermined location. Can be automatically and extremely efficiently performed sequentially and continuously, and the work efficiency is greatly improved.

Here, as shown in detail in FIGS. 6 and 7, the cutter portion 44 is provided with a disk blade 64 having a substantially disk shape and having a blade formed on the outer periphery on a rotating shaft 62 (on the same axis). Since a plurality of disk blade shafts 60 fixed and provided in a predetermined number are arranged substantially in parallel, the bag body H can be efficiently and finely cut by rotating the disk blade shafts 60.
Therefore, the grain is less likely to be caught by the cut bag piece, and the bag piece and the grain can be reliably separated and sorted.

Furthermore, since the adjacent disk blade shafts 60 are rotated in opposite directions, the bag body H is easily pinched between the disk blade shafts 60 by the rotational force of the adjacent disk blade shafts 60. Thereby, the bag body H can be reliably cut.

Further, since a predetermined number of disk blade shafts 60 disposed at the center of the cutter portion 44 are provided above the other disk blade shafts 60, the disk blade shaft 60 is supplied by the bag body H supplied to the cutter portion 44. The impact acting on the bag body H can be dispersed and relieved, the cutting operation of the bag body H can be performed smoothly, and the cutter portion 44 can be protected.

Further, since the intervals between the disk blades 64 fixed to the same disk blade shaft 60 (on the same axis) are separated by a predetermined distance (the interval A in FIG. 6 is widened to some extent), it is cut. The piece of the bag body after the cutting is
4 is prevented from being caught in the gap (between the gaps 4) and easily falls downward (on the sorting net 48). As a result, all of the cut pieces of the bag are cut off by the scraping bar 50 and the outlet 54
And the bag pieces can be easily and reliably accumulated.

Further, since the disk blades 64 of the adjacent disk blade shafts 60 overlap each other and are close to each other (the interval B in FIG. 6 is narrowed), the bag body H is made thinner. In addition to being able to be cut, it is possible to prevent the bag pieces after cutting from being connected in a strip shape. As a result, the bag pieces and the grains can be more reliably separated and sorted.

Here, the disk blade 64 of the disk blade shaft 60 is used.
The lower portion of the suspending tool 72 suspended between the space and the disk blade 64 and the side wall 66A of the support cylinder 66 is a weight portion 72A having a predetermined weight, so that the suspension accompanying the rotation of the disk blade shaft 60 is achieved. The rotation of the tool 72 is inhibited. For this reason, the disk blade shaft 60
While the hanging member 72 is hard to rotate while rotating, the bag piece is prevented from wrapping around the rotation shaft 62, whereby the bag piece is gradually wrapped around the rotation shaft 62 in multiple layers. This can prevent the disk blade shaft 60 from being unable to cut the bag H.

Further, since the weights 72A of the suspenders 72 suspended on the adjacent disk blade shafts 60 can be brought into contact with each other, the suspenders 72 cannot be rotated, and the bag pieces are removed. Wrapping around the outside of the rotating shaft 62 is favorably prevented. Thereby, it is possible to properly prevent the disk blade shaft 60 from being unable to cut the bag body H due to the bag pieces gradually being wrapped around the rotation shaft 62 in multiple layers.

Further, there is no gap between the flange 70 and the side wall 66A of the support cylinder 66, which are integral with the hanging member 72 and the disk blade 64. The semi-circular shape eliminates the step between the outer periphery of the upper part of the hanging member 72 and the outer periphery of the flange 70. For this reason, the hanging tool 72, the flange 70, and the side wall 6
6A is prevented from wrapping the bag piece, and the bag piece is better prevented from wrapping around the rotation shaft 62. Thereby, it is possible to more effectively prevent the disk blade shaft 60 from being unable to cut the bag body H due to the bag pieces gradually being wrapped around the rotation shaft 62 in multiple layers.

[0056]

As described above, the bag-opening apparatus according to the present invention performs the operation of taking out grains from the bags stacked on a pallet in which grains such as rice grains are stored, and accumulating the grains at a predetermined location. It can be performed automatically and extremely efficiently, and has an excellent effect that workability is greatly improved. Further, the bag member is prevented from being wound around the rotation axis of the disk blade shaft by the suspension member, so that it is possible to prevent the disk blade shaft from being unable to cut the bag body.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic overall configuration of a bag opening apparatus according to an embodiment of the present invention.

FIG. 2 is a left side view showing a schematic overall configuration of the bag opening apparatus according to the embodiment of the present invention.

FIG. 3 is a front view showing a schematic overall configuration of the bag opening apparatus according to the embodiment of the present invention.

FIG. 4 is a plan view showing a schematic overall configuration of the bag opening apparatus according to the embodiment of the present invention.

FIG. 5 is a rear view showing a schematic overall configuration of the bag opening apparatus according to the embodiment of the present invention.

FIG. 6 is a plan view showing a delivery guide section and a cutter section of the bag opening apparatus according to the embodiment of the present invention.

FIG. 7 is a rear view showing a delivery guide unit, a cutter unit, and a sorting unit of the bag opening apparatus according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a hanging tool of the bag opening apparatus according to the embodiment of the present invention.

FIG. 9A is a plan view showing an “A array pattern” when the bags stacked on the pallet are “7 bags”, and FIG. 9B is a plan view showing the “7 bags”. FIG. 9 is a plan view showing a “B array pattern” in the case of “”. (C) is a plan view showing a “C array pattern” when the bag is “5 bags”, and (D) is a “D array pattern” when the bag is “5 bags”. FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 bag release device 12 pallet placing portion 14 table plate 16 bag detection sensor 18 gripping portion 20 left and right drive guide 22 front and rear drive guide 24 gripping claw 26 driving pin 32 moving position detection sensor 34 delivery guide portion 38 rotating plate 42 release position Detection sensor 44 Cutter section 46 Sorting section 48 Sorting net 50 Scrape bar 60 Disk blade shaft 62 Rotation axis 64 Disk blade 70 Flange 72 Suspension device (suspension member) 72A Weight unit H Bag body P Pallet

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuichiro Mune 404 Oinomori, Tendo City, Yamagata Prefecture F-term in the Yamamoto Works 3E058 AA04 BA03 CA03 DA05 FA05 GA02 GA07

Claims (3)

[Claims] 1. A disk blade comprising a plurality of disk blade shafts having a substantially disk shape and having blades formed on the outer periphery fixedly provided on a rotary shaft by a predetermined number, and arranged substantially in parallel. A cutter unit for cutting a bag body containing grains therein by rotating a blade shaft, and a disk portion suspended between the disk blades of the disk blade shaft and a lower portion serving as a weight portion having a predetermined weight. A hanging member that inhibits rotation associated with the rotation of the blade shaft, and a sorting unit that separates and sorts the bag pieces and the grain after being cut by the cutter unit and accumulates them at predetermined locations. Unpacking device. 2. The weight members of the suspension member suspended from the adjacent disk blade shafts can contact each other,
The bag opening apparatus according to claim 1, wherein: 3. A flange for fixing the disk blade to the rotating shaft, the flange being provided integrally with the disk blade so that the center is coincident with the disk blade, and the suspension is provided. The gap between the member and the flange is eliminated, and the upper outer periphery of the suspension member is formed in a semicircular shape along the outer periphery of the flange, so that the upper periphery of the suspension member and the outer periphery of the flange are removed. 3. The bag opening device according to claim 1, wherein the step is eliminated.