JP3239012B2 - How to unpack tobacco raw material case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tobacco raw material case for accommodating tobacco raw materials such as deboned leaves and for saving space and reducing costs in a storage area, and for extracting tobacco raw materials from the tobacco raw material case. The present invention relates to a method of unpacking a raw material case.

[0002]

2. Description of the Related Art Conventionally, in a tobacco raw material factory, deboned leaves, which are raw materials of tobacco, are packed in a warehouse and stored in a warehouse. However, since such a raw material is wooden and heavy, there is a problem in energy saving during transportation. Further, since the barrel has the shape of a barrel and the barrel itself has a large volume, there is a problem in that space is saved in consideration of the storage amount of the raw material.

[0003] Therefore, it is also practiced to pack and remove boning leaves in a cardboard box. However, since the boxed ones are stacked and stored for a long time, the cardboard box is required to have a certain strength. For this reason, for example, the body and the lid of the cardboard box were made to the same depth, but such cardboard boxes require a lot of corrugated paper to have strength despite being disposable. There was a problem in terms of cost.

[0004]

On the other hand, as shown in FIG. 14, for example, a box having a rectangular parallelepiped facing opening formed by bending a single cardboard and having a flap f around the opening. B and 2 to protect the deboned leaves from moisture
The tobacco raw material case 1 is made up of two sheets of moisture-proof paper S and two sheets of, for example, wooden plywood P, which close the opening of the box B, and the bone removal leaf T is squeezed into the box B as shown in FIG. The above-mentioned problem is solved if the moisture-proof paper S and the plywood P are arranged and packed in the opening of the box B. In FIG. 15, a part is crushed and shown.

That is, since the box B can be made of cardboard or the like, the case itself does not occupy a large volume. Further, since the plywood P is disposed at the opening, the width of the flap f can be reduced. The strength of the tobacco raw material case 1 can be maintained.

However, when handling such a tobacco raw material case, it is required to automate the case unpacking process, and a unpacking method suitable for this automation is required.

An object of the present invention is to provide an unpacking method suitable for automating and unpacking a tobacco material case for saving tobacco material, saving space in a storage place, maintaining strength of the case, and reducing costs. As an issue.

[0008]

According to the present invention, there is provided a method of unpacking a tobacco raw material case in which a tobacco raw material is filled in a rectangular cylindrical box forming a rectangular parallelepiped accommodating space. together arranged plate body into two openings of the box body, which is formed by shortening the folding length around opening their
A method for unpacking a tobacco material case in which four flaps are bent inward so as to hold the periphery of the plate body, wherein the opening is positioned in the up-down direction. Feeding and four flaps at the top opening of the supplied tobacco raw material case.
A step of inserting a flap raising lever into a gap between the flap and the plate from between the opposing flaps bent earlier to the plate side to raise the flap; and opening the upper part of the tobacco raw material case. Lowering and raising the suction means to suck and remove the plate body at the opening, folding the flap at the upper opening of the tobacco material case, and opening the upper portion of the tobacco material case Overturning the tobacco raw material case up and down,
The claw portion having an air introduction groove with spaced air introduction hole side through the upper part the box of the box body of the inverted tobacco material case, the upper portion of the box body and said tobacco material casing by the claw portion Holding and lifting the plate and extracting the tobacco raw material from the lower portion of the box by its own weight .

[0009]

According to the method for unpacking a tobacco raw material case of the present invention, a tobacco raw material is filled in a rectangular cylindrical box forming a rectangular parallelepiped accommodating space, and a plate is disposed at two openings of the box. its formed by shortening the folding length around opening
This is a method of unwrapping a tobacco raw material case in which four flaps are bent inward to hold the periphery of the plate.

The tobacco material case is supplied so that the opening is located in the vertical direction, and a gap between the flap and the plate is provided between the opposing flaps of the upper opening of the supplied tobacco material case. Insert the flap raising lever to raise the flap, lower and raise the suction means at the upper opening of the tobacco raw material case to suck and remove the plate at the opening, and flap the upper opening of the tobacco raw material case. Fold the tobacco raw material case up and down to cover the upper opening of the tobacco raw material case, and have an air introduction groove
That the claw portion penetrates into the upper side surface of the box body of inverted tobacco material casing a drilled air inlet holes into the box body Rutotomoni, holding the upper plate of the box body and the tobacco material case by the claw portion And lift and remove the tobacco raw material from its lower part by its own weight .

In the moisture-proof paper described with reference to FIG. 14, after the plate is removed by the suction means, the suction means is lowered to the upper opening of the tobacco raw material case in the same manner as the removal of the plate. And can be lifted and removed .

[0012]

FIG. 1 is a view showing a method of unpacking a tobacco material case according to an embodiment of the present invention. In this embodiment, the tobacco material case described with reference to FIGS. 14 and 15 is unpacked. . The dimensions of the cardboard frame B of the tobacco raw material case 10 (hereinafter simply referred to as “raw material case” in this embodiment) 10 in this embodiment are as shown in the following Table 1 and FIG.

[0013]

[Table 1]

In the raw material case 10, the band is opened in the previous step, and as shown in FIG. 1, the raw material case 10 with the band opened is supplied with one opening upward. next,
The flap raising lever 144c is inserted into the gap between the flap f and the plywood P from between the opposing flaps f of the opening at the upper part of the raw material case 10 to raise the flap f. After the suction mechanism 145 is lowered and raised in the opening to suck and remove the plywood P in the opening, the suction mechanism 145 is lowered and raised again to suck and remove the moisture-proof paper S in the opening as shown in FIG. Then, the top of the raw material case 10 is opened so that the bone removal leaves T are exposed.

Next, the flap f of the upper opening of the raw material case 10 is bent inward as described above, and the pallet 20 is applied to the upper portion of the raw material case 10 to cover the upper opening of the tobacco raw material case 10 as shown in FIG. The material case 10 is turned upside down together with the pallet 20 as shown in FIG.

Then, the claw portion 43a is pierced into the upper portion of the side of the raw material case 10 inverted on the pallet 20 to make an air introduction hole, and as shown in FIG.
Claw portion 4 penetrating the side surface of cardboard frame B of raw material case 10
By 3a, the corrugated cardboard frame B, the plywood P and the moisture-proof paper S on the upper part of the raw material case 10 are held and lifted, and the deboned leaves T are extracted from the lower part of the corrugated cardboard frame B.

In the above-described unpacking method, the plywood P and the moisture-proof paper S on one side are removed by opening the flap f at the opening, so that they can be reliably removed by the suction mechanism 145. In the step of turning the raw material case 10 upside down together with the pallet 20, a conventional reversing machine for turning the raw material upside down can be used.

Further, since an air introduction hole is formed in the side surface of the cardboard frame B by the claw 43a, the claw 43a allows the box B and the plywood P on the upper part of the raw material case 10 to be opened.
Is held and lifted, air enters the inside of the cardboard frame B from the air introduction hole, and at the same time, the boning leaves T fall out of the lower part of the cardboard frame B onto the pallet 20 by their own weight. Therefore, only the bone removal lobe T can be easily collected on the pallet 20.

FIG. 2 is a plan view of the unpacking step for carrying out the method for unpacking the tobacco raw material case according to the embodiment of the present invention. This unwrapping step removes plywood and moisture-proof paper from the top of the raw material case 10. A case opening device 1 for opening the top part, a reversing machine 2 for reversing the raw material case 10 from which the plywood and the moisture-proof paper have been removed, and a pallet feeder 3 for supplying a pallet 20 serving as a bottom plate of the raw material case which has been reversed upside down And a case removing device 4 for pulling up the corrugated cardboard frame of the raw material case 10 turned upside down, the remaining plywood, and the moisture-proof paper to take out the boning leaves on the pallet 20.

Further, the raw material case 10 is provided for the carry-in conveyor 10.
By 0, it is carried in with the opening up and down, and is supplied onto the elevating conveyor 200. In addition, the lifting conveyor 200
The raw material case 10 from which the plywood and the moisture-proof paper have been removed by the case opening device 1 is supplied to the reversing machine 2 by the lifting conveyor 200 and the connecting conveyor 300.

On the other hand, the pallet 20 is sent out onto the transfer conveyor 400 by the pallet feeder 3, and is supplied to the reversing machine 2 by the transfer conveyor 400 before the raw material case 10. Then, the pallet 20 inverted by the inverter 2
And the raw material case 10 are placed on the pallet 20.
Is transported from the reversing machine 2 to a position below the case removing device 4 by the transport conveyor 400 in a state where is placed.

FIG. 3 is a front view of the case opening device 1.
A column 12 is erected on a base 11 arranged beside the elevating conveyor 200, and a main arm 13 extending horizontally is attached to the column 12 so as to be able to move up and down. Is provided with an open suction device 14.

An auxiliary arm 15 which is substantially parallel to the main arm 13 is attached to the upper end of the column 12, and an open suction device 14 is provided at the tip of the auxiliary arm 15 to reduce the load on the main arm 13. The winch 16 is hung by a predetermined force.

The main arm 13 and the auxiliary arm 15
Is rotated in a range of about 90 degrees as shown by the arrow in FIG. 2, and the main arm 13 is moved up and down with respect to the column 12 while maintaining the horizontal state as shown by the arrow in FIG. . As a result, the open suction device 14 moves the lifting conveyor 200
The reciprocating movement is performed between the reciprocating unit and the collecting unit 500, and the unit is moved up and down above the elevating conveyor 200 and above the collecting unit 500.

FIG. 4 is a plan view of the open suction device 14, FIG. 5 is a front view, and FIG.
Is a base 141 attached to the tip of the main arm 13,
The flap holding substrate 14 provided on the base 141
2, and a vertical frame 143 erected in the center of the flap holding substrate 142 constitutes a frame of the main body.

Four slide shafts 142a are erected on the flap holding substrate 142. The flap holding substrate 142 and the vertical frame 143 are connected to the four bearings 1 of the base 141 through the slide shaft 142a through the spring 142b.
41a, and the upper end of the vertical frame 143 is hung by the winch 16 so that the base 141
Is mounted to be swingable.

On the left and right side surfaces of the vertical frame 143, a flap raising mechanism 144 is provided inside and a suction mechanism 145 is provided outside.

The flap raising mechanism 144 mounts a horizontal cylinder 144b on a drive shaft of a vertical cylinder 144a, and furthermore, a "C" at the lower part of the horizontal cylinder 144b.
A flap raising lever 144c, which is shaped like a letter and whose lower end extends horizontally, is attached to the drive shaft of a horizontal cylinder 144b. The horizontal cylinder 1
A flap bending plate 144d inclined downward and outward is attached to the drive shaft 44b.

The suction mechanism 145 is connected to the vertical cylinder 1
The bearing plate 145b is attached to the drive shaft 45a, and the bearing plate 1
A pair of suction pipes 145e are slidably supported on a bearing 145c of a 45b through a spring 145d, and a suction cup 145f is attached to the tip of the suction pipe 145e. The suction force is applied to the suction cup 145f by a suction device (not shown) via a suction pipe 145e.

FIG. 7 is a diagram for explaining the operation of the flap raising mechanism 144 and the suction mechanism 145. As shown in FIG. 7A, the flap raising mechanism 144
The horizontal cylinder 144b is moved up and down by driving 44a, and the horizontal cylinder 144b is driven to move the flap raising lever 144c and the flap bending plate 144d back and forth.

Further, as shown in FIG. 7B, the suction mechanism 1
45 drives the vertical cylinder 145a to lower the suction cup 145f and the suction pipe 145e by the elastic force of the spring 145d, thereby bringing the suction cup 145f into contact with the plywood P. When the suction cup 145f contacts the plywood P, the suction pipe 145e rises relatively to the bearing 145c against the elastic force of the spring 145d.

FIG. 8 is a view for explaining the flap raising operation and the plywood removing operation by the flap raising mechanism 144 and the suction mechanism 145. Although the flap raising mechanism 144, the suction mechanism 145, and the raw material case 10 are shown on only one side in the figure, the same operation is performed on the opposite side.

First, the raw material case 10 is moved up and down the conveyor 20.
When the open suction device 14 is stopped at a predetermined position, the open suction device 14 descends and stops at the predetermined position, and drives the vertical cylinder 144a and the vertical cylinder 145a to drive the flap raising lever 14.
4c and the suction cup 145f are lowered and brought into contact with the plywood P as shown in FIG.

Next, a suction force is applied to the suction cup 145f to suck the plywood P, and the horizontal cylinder 144b of the flap raising mechanism 144 is driven to move the flap raising lever 144c to the plywood P as shown in FIG. 8B. And is stopped between the flap f and the end of the flap raising lever 144c immediately before the base of the flap f.

Next, the vertical cylinders 144a and 145a are retracted, and as shown in FIG.
44c is first raised to raise the flap f at the tip of the flap raising lever 144c. At this time, the suction cup 14
5f is the suction tube 145 when it comes into contact with the plywood P.
e is retracted toward the bearing 145c by the amount corresponding to the spring 145.
It is in contact with the plywood P by the elastic force of d,
When the vertical cylinder 145a is retracted by a predetermined amount, the plywood P is sucked by the suction cup 145f and rises.

When the retraction of the vertical cylinders 144a and 145a is completed, the open suction device 14 is raised, and FIG.
Then, the plywood P is picked up from between the flaps f and removed from the raw material case 10. Then, the suction mechanism 14
When the plywood P is held at 5, the open suction device 14 is moved above the collection unit 500 by the rotation of the main arm 13, the suction force of the suction cup 145 g is released, and the plywood P is dropped and collected by the collection unit 500. .

Next, the open suction device 14 is moved up and down the conveyor 2
8, the moisture-proof paper S is removed from the raw material case 10 by the suction mechanism 145 by performing the same operation as described with reference to FIG. to recover.

As described above, when the plywood and the moisture-proof paper are removed from the raw material case by the suction mechanism 145, the flap raising lever 144c of the flap raising mechanism 144 is used.
As a result, the plywood and the moisture-proof paper can be reliably removed.

When the plywood and the moisture-proof paper are removed as described above, the open suction device 14 is returned to a position above the raw material case 10 on the elevating conveyor 200, and as shown in FIG. Close the top flap.

That is, the vertical cylinder 145a of the suction mechanism 145 is kept at the position of the return end , and
By driving the binder 144b, the flap bending plate 144d (
And move the flap raising lever 144c) inward,
The vertical cylinder 144a of the flap raising mechanism 144 is driven, and the flap f is bent inward by the flap bending plate 144d as shown in FIG.

Next, the open suction device 14 is lowered and the vertical cylinder 144a is retracted, and the flap f is completely bent inward by the flap holding substrate 142 as shown in FIG. 9B. Then, the open suction device 14 is raised and returned to the origin position.

Through the above steps, the plywood and the moisture-proof paper are removed from the top of the raw material case, and the flap of the top is bent, and the raw material case is sent to the reversing machine 2.

FIG. 10 is a diagram for explaining the structure and operation of the reversing machine 2. As shown in FIG. 10 (A), the reversing machine 2 includes a reversing drum 21 having openings on the side of the conveyer 300 and the side of the transfer conveyor 400, and the reversing drum 21 is rotated about a rotating shaft 21a. It rotates like the arrow of 10 (A).

An elevating conveyor 22 on which a pallet is placed is provided below the reversing drum 21. A stopper 22 is provided before and after the elevating conveyor 22 to hold the front and rear of the pallet.
a holding claw 22b that presses the upper side of the pallet at the time of reversing,
Are arranged.

A carry-in conveyor 23 for carrying the raw material case is provided above the reversing drum 21. A stopper 23a for holding the bottom front and rear of the raw material case at the time of reversing is provided in the middle of the carry-in conveyor 23. It is arranged.

With the above configuration, as shown in FIG. 10A, the pallet 20 supplied to the transfer conveyor 400 is taken into the reversing drum 21 by the transfer conveyor 400 and the elevating conveyor 22, and the pallet 20 is stopped by the stopper 22a. The pallet 20 is positioned and fixed by pressing the upper side surface of the pallet 20 with the pressing claw 22b.

When the pallet 20 is fixed to the reversing drum 21, the reversing drum 21 is rotated 90 degrees as shown in FIG. 10B, and the raw material case supplied to the conveyer 300 is conveyed by the conveyer 300 and the carry-in conveyer 23. Then, the raw material case 10 is positioned by the stopper 23a.

Next, as shown by a two-dot chain line in FIG. 10B, the pallet 20 is lowered by the elevating conveyor 22 and the top of the raw material case 10 is covered with the pallet 20. Rotate 90 degrees. And
23A, the pallet 20 and the inverted raw material case 10 are lowered by the elevating conveyor 22 as shown in FIG. 10C, the stopper 22a and the holding claw 22b are released, and Pallet 2
0 and the raw material case 10 are transferred to the case removing device 4 side.

FIG. 11 is a front view and a side view of the case removing device 4. The case removing device 4 hangs a disc-shaped elevating substrate 42 on a substrate 41 attached to the rail 5 so as to be able to move up and down freely, and moves the elevating substrate 42 to a winch 41 a on the substrate 41.
And a wire 41 laid over a pulley 42a on a lifting board 42
It is designed to be suspended by b.

On the lifting board 42, a pair of gripping devices 43, which are diametrically opposed to each other, are disposed, and the gripping device 43 is a claw extending from the lower surface of the outer circumference of the lifting board 42. The bottom of the raw material case (the upper end portion of the inverted raw material case) is held by 43a. In addition, as shown in FIG. 1, the pair of holding devices 43 are disposed facing each other in a direction parallel to the rail 5, and hold in the longitudinal direction of the bottom surface of the raw material case 10.

FIG. 12A is a side view of the biting device 43, and FIG.
2 (B) is a bottom view, FIG. 13 (A) is a front view, and FIG. 13 (B) is a top view. The claw portion 43a is fixed to a horizontal plate 43c attached to a lower end of the vertical plate 43b.
Is suspended from the slide block 43d.

The slide block 43d is mounted on the lift board 42
Are slidably attached to two slide shafts 43e extending from the outer peripheral edge of the base plate, and a cut groove 42a through which a vertical plate 43b can pass is provided on the elevating substrate 42 at a portion between the two slide shafts 43e. Is formed. The upper end of the slide block 43d is connected to a drive shaft of a cylinder 43f attached to the lifting board 42.

By driving the cylinder 43f, the slide block 43d, the vertical plate 43b, the horizontal plate 43c, and the claw portion 43a reciprocate in the radial direction of the elevating substrate 42, as shown by a two-dot chain line in FIG. Like the lifting substrate 4
2 a comes into contact with the upper surface of the raw material case 10, and the claw 43 a pierces near the upper end of the raw material case 10. Further, the other holding device 43 also operates at the same time, and the vicinity of the upper end of the raw material case 10 is held by both the claw portions 43a.

Here, the distance between the claw portion 43a and the bottom surface of the lifting board 42 is determined by the height of the claw portion 43a when the bottom surface of the lifting board 42 contacts the upper end of the raw material case. It is set to be slightly lower than the upper end of the bone leaf. As a result, as shown in FIG.
When 3a pierces near the upper end of the raw material case 10,
Flap f at upper end (bottom) of material case 10 and claw portion 43
a, the plywood P and the moisture-proof paper S are sandwiched between them, and the plywood P and the moisture-proof paper S are held together with the cardboard frame B by the claws 43a.

Further, the claw portion 43a is formed with five triangular blades at the tip toward the center of the elevating substrate 42.
Thereby, the claw portion 43a is easily pierced into the cardboard frame B of the raw material case 10.

A parallel air introduction groove 43a-1 passing through the center of each triangular blade is formed on the back surface of the claw portion 43a, and when the claw portion 43a pierces the cardboard frame B,
The air introduction groove 43a-1 forms an air introduction hole between the claw portion 43a and the cardboard frame B.

With the above configuration, at the time of the case removing operation, first, the case removing device 4 stops the elevating substrate 42 at the rising end above the transfer conveyor 400 and stands by.
The material case 10 in the inverted state is transferred to the transfer conveyor 400.
Then, the lifting substrate 42 is lowered and placed on the raw material case 10. Then, as shown in FIG. 1, the side surfaces near the bottom (upper end) of the raw material case are held by the claw portions 43a of the pair of holding devices 43.

Next, the lifting board 42 is raised, so that the corrugated cardboard frame B and the plywood P as shown in FIG.
Then, the moisture-proof paper S is hung on the claw portion 43a and pulled up, and the bone removed leaves T filled in the cardboard frame B are extracted from the cardboard frame B by its own weight.

Then, the substrate 41 is moved along the rail 5 while holding the cardboard frame B, the plywood P and the moisture-proof paper S on the elevating substrate 42, and the elevating substrate 4 is moved to a predetermined collecting place.
The cardboard frame B, the plywood P, and the moisture-proof paper S are recovered by lowering the pair 2 to remove the pair of claws 43a.

As described above, since the raw material case 10 is formed in a rectangular shape, the bone removal leaves extracted from the raw material case 10 are formed into a rectangular mass, which is used when a tobacco leaf is assembled (friend). The division becomes easy. In addition, the storage space can be saved, and the packaging cost can be reduced. And
According to the unpacking method and unpacking apparatus of the embodiment, the unpacking of the raw material case as described above can be automated and easily performed.

In the above embodiment, since the air introducing hole is formed in the cardboard frame by the air introducing groove 43a-1 of the claw portion 43a, the air introducing hole is formed simultaneously with the gripping of the cardboard frame or the like. However, the air introduction hole may be formed by another method.

Further, in the above-described embodiment, the case where a wooden plywood is used as the plate of the tobacco raw material case has been described. However, the plate is not limited to wooden and may be a plastic plate or the like, and is particularly limited. is not. It is needless to say that the present invention can be applied even when moisture-proof paper is not required.

[0063]

As described above, according to the method for unpacking tobacco raw material cases of the present invention, the tobacco raw material is filled in a rectangular cylindrical box forming a rectangular parallelepiped accommodating space, and the two tobacco raw materials of the box are removed. Disassembling a tobacco raw material case in which a plate is arranged in an opening and four flaps formed by shortening the length of the opening around the opening are bent inward to hold the periphery of the plate. The tobacco raw material case is supplied such that the opening is located in the up-down direction, and the flap and the plate are formed between the opposed flaps of the upper opening of the supplied tobacco raw material case. Insert the flap raising lever into the gap to raise the flap, lower and raise the suction means at the upper opening of the tobacco raw material case to suck and remove the plate at the opening, and open the upper part of the tobacco raw material case of Folding the wrap, the tobacco material case upside down over the top of the opening of the tobacco material case, the box body through the upper side surface of the box of the tobacco material case that reversing the claw portion having an air introducing groove Rutotomoni spaced air inlet holes, lifting and holding the upper plate of the box body and the tobacco material case by the claw portion. Thus withdrawn by the weight of the tobacco material from the box lower part,
The tobacco raw material case can be easily automated to disassemble the tobacco raw material case, which can save space in the storage place of the tobacco raw material, maintain the strength of the case, and reduce the packing cost.

[Brief description of the drawings]

FIG. 1 is a diagram showing a method of unpacking a tobacco raw material case according to an embodiment of the present invention.

FIG. 2 is a plan view of an unpacking step in the embodiment of the present invention.

FIG. 3 is a front view of the case opening device according to the embodiment of the present invention.

FIG. 4 is a plan view of the open suction device according to the embodiment of the present invention.

FIG. 5 is a front view of the open suction device.

FIG. 6 is a side view of the open suction device.

FIG. 7 is a diagram illustrating the operation of a flap raising mechanism and a suction mechanism according to the embodiment of the present invention.

FIG. 8 is a diagram illustrating a flap raising operation and a plywood removing operation in the embodiment of the present invention.

FIG. 9 is a diagram illustrating an operation of closing a flap according to the embodiment of the present invention.

FIG. 10 is a diagram illustrating the structure and operation of a reversing machine according to an embodiment of the present invention.

FIG. 11 is a front view and a side view of the case removing device according to the embodiment of the present invention.

FIG. 12 is a side view and a bottom view of the biting device according to the embodiment of the present invention.

FIG. 13 is a front view and a top view of the biting device.

FIG. 14 is an exploded perspective view showing a tobacco raw material case in the embodiment of the present invention.

FIG. 15 is a partially broken perspective view showing a packed state of the tobacco raw material case in the embodiment of the present invention.

FIG. 16 is a diagram illustrating dimensions of a tobacco raw material case according to an embodiment of the present invention.

[Brief description of reference numerals]

DESCRIPTION OF SYMBOLS 1 ... Case opening device, 2 ... Reversing machine, 4 ... Case removal device, 142 ... Flap holding board, 144 ... Flap raising mechanism, 145 ... Suction mechanism 145, 144c ... Flap raising lever, 144e ... Flap bending plate, 43 ... Biting Holding device, 43a: claw portion, 43a-1: air introduction groove, 10
... tobacco raw material case, P ... plywood, S ... moisture-proof paper,
B: Corrugated cardboard frame, f: Flap.

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A24B 1/10

Claims (1)

(57) [Claims] 1. A tobacco raw material is filled in a rectangular cylindrical box forming a rectangular parallelepiped accommodating space, and a plate is disposed at two openings of the box, and a folded length is reduced around the opening. A method of unpacking a tobacco raw material case in which four flaps formed as described above are bent inward to hold the periphery of the plate body, wherein the opening is located in the up-down direction. Supplying the raw material case, and four openings at the top of the supplied tobacco raw material case
Raising the flap by inserting a flap raising lever into a gap between the flap and the plate body from between the opposing flaps bent forward to the plate body side of the flaps; Lowering and raising the suction means in the upper opening of the tobacco raw material case to suck and remove the plate body of the opening, and bending the flap of the upper opening of the tobacco raw material case; Flipping the tobacco raw material case up and down by covering the upper opening of the tobacco raw material case ; and penetrating a claw portion having an air introduction groove into the upper side of the box of the inverted tobacco raw material case . a step of extracting with drilling air inlet holes, lifting and holding the upper plate of the box body and said tobacco material casing by the claw portion, by its own weight to the tobacco material from the lower the box body, Unpacking method tobacco material casing, characterized in that it comprises.