JP2001171635A - Bag unpacking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag unpacking apparatus which can execute automatically and efficiently a series of works for taking grains out of bag bodies and accumulating the taken-out grains at a specified place successively and is contributable greatly to improvement of work efficiency. SOLUTION: With the bag unpacking apparatus 10, a series of works for taking grains out of bag bodies and accumulating the grains at a specified place including such processes as catching of the bag bodies H having the grains housed therein stacked up on a pallet P at a catching part 18, delivering of the bag bodies H to a cutter part 44 and cutting the bag bodies with the grains being housed therein, sorting and separating the grains from cut-pieces of the bags and accumulating the grains taken out of the bag bodies at a specified place are executed automatically and efficiently in a successive order, and thereby work efficiency can be improved greatly.

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 worker. 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 in which a bag body containing grains therein is cut by a cutting unit while the grains are stored therein. In a bag-opening device for separating and sorting the later bag pieces and the grains therein and collecting them at predetermined locations, a plurality of sorting machines provided immediately below the cutting section and smaller than the bag pieces and larger than the grains. A sorting member that separates and sorts the bag piece and the grain that have fallen from the cutting portion by forming a hole, and a sorting member that is provided on the sorting member, moves on the sorting member, and moves on the sorting member to form the bag piece. And a discharge member for discharging the wastewater.

[0006] According to the bag opening apparatus of the first aspect, the bag body containing the grain therein is cut in a state where the grain is stored in the cutting section, and is provided immediately below the cutting section. The bag pieces cut by the sorting member and the grains inside are separated and sorted, and each is collected at a predetermined location. 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 sorting member is formed with a plurality of sorting holes smaller than the bag piece and larger than the grain, and the bag piece dropped from the cut portion does not pass through the sorting hole and is placed on the sorting member. On the other hand, the grain that has fallen from the cutting portion passes through the sorting hole and falls directly below the sorting member. This allows
The bag pieces and the grains can be easily separated and sorted, and the work of accumulating the grains can be facilitated.

Further, a discharging member is provided on the sorting member, and the discharging member moves on the sorting member and discharges the bag strip. Thereby, the accumulation | stacking operation | work of a bag piece can be facilitated.

[0009]

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 bags H each containing grains therein are sequentially stacked in a stacked state is placed as it is.

In the pallet placing portion 12, a plurality of (in this embodiment, six on one side and a total of 12 on both sides) bag detecting sensors 16 are provided on the 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 in accordance with the preset program as described above.

A moving position detection sensor 32 is attached to the gripping section 18 having the above-described configuration. 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.

Immediately below the lower end opening of the receiving hopper 36 of the delivery guide section 34, a cutter section 44 as a cutting section is provided. In the cutter unit 44, a plurality of (six in the present embodiment) rotating shafts are arranged along the apparatus width direction, and a plurality of (for example, six) rotating shafts are provided for each rotating shaft.
The disk blade is attached. The cutter portion 44 rotates the rotating shafts (disk blades) in opposite directions to each other, thereby rotating the rotating plate 3 of the delivery guide portion 34.
8, the bag body H guided and sent can be received, and the bag body H can be cut while the grain is stored.

A predetermined number (for example, two) of the rotary shafts (disc blades) of the cutter unit 44 located at the center of the rotary shaft (disc blade).
The rotating shaft is mounted higher (at a higher position) than the other rotating shafts, and is configured to disperse and reduce the impact when receiving the bag H from the rotating plate.

As shown in detail in FIG. 6, a sorting section 46 is disposed immediately below the cutter section 44. The sorting section 46 is provided with a sorting net 48 as a sorting member. The sorting net 48 is formed with a large number of sorting holes 48A, which are smaller than the bag pieces cut by the cutter unit 44 and larger than the inner grains, in a mesh shape. The strips and the grains inside can be separated and sorted. Therefore, the grain in the bag body H after being cut by the cutter unit 44 passes through the sorting hole 48A of the sorting net 48, falls down as it is, is collected through the collecting hopper 58, and is cut by the cutter unit 44. The bag pieces that have been removed do not pass through the sorting hole 48A and temporarily accumulate on the sorting net 48.

On the sorting net 48, a scraping bar 50 is provided as a discharging member. 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. As a result, the sorting net 48 cut by the cutter unit 44 is used.
The bag pieces collected on the upper side can be scraped out in the width direction of the apparatus, and can be 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 in 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, as shown in FIG.
Are arranged in an "A arrangement pattern" as shown in FIG. 7, and further arranged thereon and arranged in a "B arrangement pattern" as shown in FIG. 7B. 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. 7C, and further arranged in a “D arrangement pattern” as shown in FIG. 7D. 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 apparatus 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
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 a bag to be grasped. 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) is moved 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 disk blades while the grains are stored. In this case, the cutter unit 44
Number of rotary shafts (disc blades) located at the center
Since (for example, two) rotating shafts are mounted higher (at a higher position) than the other rotating shafts, the impact upon receiving the bag H dropped and fed from the rotating plate 38 is dispersed. Then, the cutting operation of the bag body H is performed smoothly.

Further, as shown in detail in FIG. 6, the cut bag H (bag pieces) and the grains inside fall into a sorting unit 46 provided immediately below the cutter unit 44. In the sorting unit 46, the cut bag pieces and the inner grains are separated and sorted by the sorting net 48, and the cut grains in the bag body H are sorted into the sorting holes 48 of the sorting net 48.
A (mesh), it falls downward as it is, and is accumulated through the accumulation hopper 58. On the other hand, the cut bag strips are temporarily not passed through the sorting hole 48A and are temporarily placed on the sorting net 48. Accumulate.

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 by the scraping bar 50 in the width direction of the apparatus. Is discharged to the outside through the discharge port 54.

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.

When all the bags up to the lowermost stage H have been processed in this way, 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 a state in which the grains are stored while being fed to the bag 44 and take out the grains from the bag body H, A series of grain taking-out operations of accumulating at a location can be performed sequentially and automatically and extremely efficiently, and the working efficiency is greatly improved.

Here, since the sorting net 48 is formed with a plurality of sorting holes 48A (mesh) smaller than the bag pieces and larger than the grain, the bag pieces dropped from the cutter portion 44 are separated from the sorting holes. Grains falling from the cutter unit 44 without passing through the sorting net 48 fall through the sorting holes 48A and fall directly below the sorting net 48 without passing through the sorting net 48. This makes it possible to easily separate and sort the bag pieces and the grains, and to facilitate the work of accumulating the grains.

Further, since the scraping bar 50 on the sorting net 48 moves on the sorting net 48 and discharges the bag pieces to the outside, the work of accumulating the bag pieces can be facilitated.

[0043]

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.

[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 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. 7A is a plan view showing an “A arrangement pattern” when the bags stacked on the pallet are “7 bags”, and FIG. 7B 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 part (cutting part) 46 Sorting part 48 Sorting net (sorting member) 48A Sorting hole 50 Scrape bar (discharge member) H Bag body P Pallet

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 21, 1999 (1999.12.
21)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

[Correction contents]

FIG. 7

Claims (1)

[Claims] 1. A bag body containing grains therein is cut in a cutting section while the grains are contained therein, and the cut bag pieces and the grains inside are cut and separated. In the bag unpacking device, each of which is collected at a predetermined location, the bag that is provided immediately below the cutting portion and that is dropped from the cutting portion by forming a plurality of sorting holes smaller than the bag strip and larger than the grain. A sorting member that separates and sorts the body piece and the grain; and a discharge member that is provided on the sorting member and moves on the sorting member to discharge the bag piece. Unpacking device.