JPS6220097B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an unwrapping device for tobacco raw materials compressed and packed into a cardboard box having a flap, and more specifically, a moisture-proof paper covering the tobacco raw materials. The present invention relates to an unwrapping device for packed compressed tobacco raw materials, which is equipped with means for automatically removing tobacco.

[Conventional technology]

Generally, the harvested and dried leaf tobacco is packed in barrels, pressed, and then stored and heated, but in recent years, in order to reduce costs such as transportation and material costs, cardboard containers have been used instead of barrels as the compressed packaging containers for the leaf tobacco. Corrugated cardboard boxes made by companies such as these are beginning to be widely used.

Conventionally, the leaf tobacco raw materials (hereinafter also simply referred to as raw materials) were unpacked manually from this boxed compressed tobacco raw materials box (hereinafter simply referred to as boxes).
Each box weighs about 200 kg, so unpacking it is not easy.

This box has fold-in flaps on the top and bottom, and a band is wrapped around it to secure the fold-in flaps. Moisture-proof paper is placed on the top, bottom, and sides of the inside of the box. The raw materials are stored inside in a compressed state.

Conventionally, when unpacking raw materials from this box,
Because the raw materials are extremely heavy, it is difficult to remove the moisture-proof paper located on the bottom surface of the raw materials unwrapped on the table, which poses a major problem when transporting the raw materials to the subsequent process. There was a problem in that the unwrapped raw materials would break into leaves, which would hinder the transport work after unwrapping.

[Problem that the invention seeks to solve]

The present invention was made by focusing on the above-mentioned problems when unpacking compressed raw materials packed in boxes.The present invention automatically removes the moisture-proof paper when unpacking the raw materials and automatically removes the raw materials without causing the raw materials to collapse. An object of the present invention is to provide an unwrapping device capable of unwrapping.

[Means for solving problems]

The present invention will be explained in detail below based on the accompanying drawings showing one embodiment.

FIG. 1 is a schematic side view showing the entire device of the present invention;
FIG. 2 shows a schematic plan view of the same. In the figure, the apparatus of the present invention includes a box carrying means A, an unwrapping bed B connected to the carrying means A, a moisture-proof paper removing means C installed below the unwrapping bed B, and an unwrapping bed B. A box lifting means D installed above B, a raw material receiving member E provided so as to be freely retractable from the unwrapping bed B, and a means F for carrying out unwrapped tobacco raw materials connected to the unwrapping bed B. Mainly composed of

In this configuration, the box carrying-in means A and the unwrapped tobacco raw material carrying-out means F are comprised of rotary roll conveyor groups 4 and 5 installed on a pedestal 6, respectively.

Moreover, the unwrapping bed B is placed on the stand 2 which is placed on the stand 6.
Consists of 5. Around this stand 25, there is provided a transfer and positioning means for placing and positioning the box on the stand 25 and for transferring the unwrapped raw material to the carrying-out means F. That is, FIG. 3 shows a side view of the unwrapping section including the unwrapping bed B, moisture-proof paper removing means C, and raw material receiving member E, FIG. 4 shows a plan view thereof, and FIG. 5 shows a front view thereof. As shown in FIG.
Sprocket wheels 13, 14, 15, 16 and 17 are provided on both sides of each support shaft 9, 10, 11, 12, respectively.
18, 19, and 20 are provided, and two rows of endless chains 21 and 22 are provided in parallel on the left and right sides of the frame 6 via these sprocket foils.

Further, as shown in FIGS. 6 and 7, first rails 7 and 8 are provided on the left and right sides of the pedestal 6 in parallel with each other, and chains 21 and 21 are mounted on the first rails 7 and 8.
22 is placed. Also, a pair of left and right endless chains 2
Between 1 and 22 are arcuate connecting members 26a and 27a, respectively.
A support rod 23 is provided through the support rod 23, and a roller 24 is rotatably provided with respect to the support rod 23. Further, on the left and right sides of the pedestal 6, second rails 26 and 27 are provided inside the first rails 7 and 8, and support arcuate connecting members 26a and 27a. roller 24
A plurality of boxes are arranged in series on the side of the carry-in conveyor 4 between the endless chains 21 and 22 over a distance that allows the boxes to be placed on the stand 25.

In FIG. 3, reference numeral 49 denotes an electric motor, which transmits power to the support shaft 9 through the sprocket wheel 13 by a drive chain 48, thereby moving the roller 24 forward and backward. A table 25 on which the compressed tobacco raw material box 1 is placed is provided on the pedestal 6 so as to be close to the lower side of the transfer surface of the rollers 24.

Further, as shown in FIGS. 7 to 9, a pusher plate 30 is attached to the support shaft 29 at the tip of the group of rollers 24.
is provided so as to be able to rise and fall freely via a support member 28 provided on a support shaft 29. This pusher plate 30 is always urged by a spring 31 provided on the support shaft 29 so as to maintain an upright state, and is configured to rise and fall against the spring 31 in the direction in which the roller 24 moves.

Further, the positioning means is as shown in FIG.
It is formed by pivoting positioning arms 36, 37 on both sides of the pedestal 6 to shafts 32, 33 so as to be openable and closable. These positioning arms 36 and 37 are
They are operated by air cylinders 34 and 35, respectively, which are fixed to the air cylinders 34 and 35. The upper ends of the positioning arms 36, 37 are provided with side abutting parts 38, 39 for abutting against the sides of the box for positioning, and rear abutting parts 40, 41 for abutting against the rear of the box for positioning. Stop members 42 and 43 are provided, respectively.

Next, the moisture-proof paper removing means C is constructed as follows. That is, as shown in FIG.
A notch 50 is provided on the side of the carry-in conveyor 4, preferably in the left-right direction intersecting the transport direction of the boxes, and a moisture-proof paper suction section 65 having a large number of suction holes 64 is provided adjacent to the notch 50. As shown in FIGS. 10 and 11, moisture-proof paper is attached to the lower part of the notch 50 so that the upper part of the outer peripheral surface is approximately at the same height as the stand 25 and perpendicular to the transport direction of the box. The drum 54 is connected to the support shaft 53 via a bearing 54a fixed to the frame 6 and a bearing 53a.
It is rotatably provided.

The moisture-proof paper suction drum 54 has a large number of suction holes 55 on its circumferential surface, and an inner cylinder 59 having an axial opening 62 in a portion facing the notch 50 is provided inside the drum. The inner cylinder 59 is supported at one end by a support shaft 60 having a hollow hole 61 inside.
0 is fixed to the pedestal 6 via a bearing 54b. The moisture-proof paper adsorption drum 54 has bearings 51, 5
2 on the outer periphery of the fixed inner cylinder 59. This drive is performed by an electric motor 57 via a sprocket 56 and a chain 58 provided at one end of the support shaft 53. Also, one end of the hollow support shaft 60 is connected to the pipe 6.
3, and further connected to a suction pump 67 via a control valve 66, as shown in FIG.

Further, in FIG. 4, the numerous suction holes 64 of the moisture-proof paper suction section 65 provided on the surface of the table 25 are also communicated with the suction pump 67 via the pipe 63 and the control valve 66, similarly to the suction drum 54.

Next, as shown in FIG. 1, the box lifting means D is provided so as to be suspended horizontally from a rail 69 supported by a pedestal 68.

Reference numeral 70 denotes a support member, and an elevating member 72 is provided on the supporting member 70 via an electric hoist 71, and a holding plate 73 is suspended from the elevating member 72.

Holding arms 74 are provided on both sides of the holding plate 73 so as to be openable and closable by air cylinders 76, and have claws 75 inside the free ends of the holding arms 74.

The raw material receiving member E is formed by attaching a raw material receiving plate 45 to the upper end of the piston of an air cylinder 46 vertically fixed to the pedestal 6, as shown in FIG. It is installed so as to be vertically movable with respect to an opening 44 provided at approximately the center of the table 25 on which it is placed.

[Effect]

The operation of the device having the above configuration will be explained below.

As shown in FIG. 12, the compressed tobacco raw material box 1 is
With the flap surface 2 to be opened facing downward, the bag is fed by the carry-in conveyor 4 onto the upper surface of the roller 24 which has been positioned in advance to cover the upper surface of the table 25 of the unwrapping bed B of the pedestal 6. Next, in this state, as shown in FIG. 5, the positioning arms 36, 37 are opened laterally from above the roller 24.
is closed above the roller 24 by air cylinders 34, 35, and the side contact portions 3 of stop members 42, 43 provided on positioning arms 36, 37
8 and 39 position the box 1 in the lateral direction.

Next, in FIG. 3, the roller 24 is driven by the electric motor 49 in a direction opposite to the transport direction of the input conveyor 4. As shown in FIG. As a result, the front and back direction of the box 1 on the roller 24 is
It is positioned at 0,41. Thereafter, the rollers 24 are further driven to move below the pedestal 6, and after the box 1 is placed on the pedestal 25, it is stopped. In this state, the box 1 is positioned on the stand 25 so that its center coincides with the raw material receiving plate 45. In this case, when the pusher plate 30 in the upright state passes the lower surface of the box 1 at the tip of the roller group 24, the 9th
As shown in the figure, it is pushed to the right in the figure against the biasing force of the spring 31. After this, stand 25 of unpacking bed B
The band wrapped around the box 1 above is cut manually. Next, the lifting member 72 of the box lifting means D, which has been waiting above the unwrapping bed B, is extended by scissors, and the holding plate 73 is lowered to a position where it abuts the top surface of the box 1, as shown in FIG. Next, as shown in FIG. 13, the claws 75 of the holding arm 74 are bitten into the sides of the box 1 by the operation of the air cylinder 76, and the box 1 is gradually raised by the elevating member 72. Due to its own weight, the raw material 3 is unwrapped by the platform 2 of the bed B.
5 and place it on top.

In this case, in order to prevent the raw material from collapsing and scattering due to the falling of the raw material 3, the raw material receiving plate 45 of the raw material receiving member E is moved from the opening 44 of the table 25 by a cylinder 46, as shown in FIG. The table 25 is raised above to support the center part of the lower surface of the raw material 3, and then the flap 2 is opened by the weight of the raw material 3 as shown in FIG. 13, and is lowered gently. Finally, the raw material 3 can be placed on the table 25. Raw material 3
The unwrapped empty box 1a is removed by moving the box lifting means D to the side of the unwrapping bed B by the rail 69 while being held by the holding arm 74.

Note that, instead of cutting the band wrapped around the box 1 manually, as shown in FIG. The band cutting operation may be automated by providing a disk-shaped band cutting knife 78 that protrudes and moves along the upper surface of the table 25 and is fixed to the moving member 79.

Next, since the upper and lower surfaces of the compressed tobacco raw material placed on the table 25 of the unwrapping bed B are covered with moisture-proof paper, the moisture-proof paper on the upper surface is manually removed. Further, if necessary, the moisture-proof paper on the upper surface is held by penetrating the box material by the claw 75 of the holding arm of the box lifting means D or a special claw (not shown) provided on the box lifting means D, Empty box 1a
It may also be configured to be lifted and removed together with automation. Next, in order to transfer the raw material 3 unwrapped from the box 1 to the carrying-out means F, the rollers 24 are operated again to move them forward onto the table 25, and as shown in FIG. This can be done by pushing out the pusher plate 30 in the upright state by the spring 31 at step 29.

At this time, in order to remove the moisture-proof paper 47 on the lower surface of the raw material 3 without sending it to the next process, the control valve 6 which is interlocked with the suction pump 67 is operated while the roller 24 is moving forward again.
6 is opened to adsorb the moisture-proof paper 47 to the suction hole 64 of the moisture-proof paper suction unit 65, and the moisture-proof paper suction drum 5
4 also attracts the vicinity of the end of the moisture-proof paper 47. Next, after the compressed tobacco raw material 3 is sent out from the table 25, the control valve 66 is closed, and the moisture-proof paper suction drum 54 is rotated in the direction of the arrow A shown in FIG. 11 by the electric motor 57 shown in FIG. 10.
Transfer the moisture-proof paper from the notch 50 to the lower part of the stand 25,
Remove. The suction holes 55 provided on the circumferential surface of the moisture-proof paper suction drum 54 can only suck the opening 62 of the inner cylinder 59, so the moisture-proof paper can be sucked downward from the notch 50 without being wrapped around the moisture-proof paper suction drum 54. It falls and is removed.

The area of the moisture-proof paper suction part 65 is set smaller than the area of the lower moisture-proof paper of the box 1, but some boxes have moisture-proof paper bent in half, and in this case, Since the moisture-proof paper does not cover the entire surface of the moisture-proof paper adsorption section 65, the pusher plate 30 may be transferred together with the compressed tobacco raw material when it is pushed out to the carry-out conveyor 5 without being adsorbed and removed. In order to prevent this, it is preferable to divide the suction hole 64 of the moisture-proof paper suction section 65 into two or more sections, and connect each section to a separate suction pump via a control valve, or to It is preferable to provide frictional resistance in the raw material transfer direction so that the moisture-proof paper is not transferred. Further, as means for feeding the boxes 1 onto the table 25 of the unpacking bed B, instead of the rollers 24 described in this embodiment, pusher means such as a commonly used hydraulic cylinder may be used.

〔Effect of the invention〕

Since the present invention is constructed as described above in detail, when unwrapping tobacco raw materials from a boxed compressed tobacco raw material box, the moisture-proof paper located on the bottom surface of the box
This provides the advantage that the compressed tobacco raw material can be automatically and easily removed, and the compressed tobacco raw material can be automatically unwrapped without causing the raw material to disintegrate.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the unpacking section, Fig. 4 is a plan view thereof, and Fig. 5 is a front view thereof. , 6th
Figure 7 is a partial explanatory diagram showing the roller support mechanism, Figure 7 is an explanatory diagram showing how the pusher plate is attached, Figure 8 is a front view of the pusher plate, Figure 9 is an explanatory diagram of the action of the pusher plate, and Figure 10. , FIG. 11 is a detailed view of the suction drum, FIG. 12 is a perspective view of the box in which compressed tobacco raw materials are packed, with the bottom flap partially open, and FIG. 13 is a detailed view of the suction drum.
Figures 1 to 3 are diagrams showing the order of unwrapping boxed compressed tobacco raw materials. 1...Pressed tobacco raw material box, 2...Flap, 3
... Compressed tobacco raw material, 4 ... Carrying conveyor, 5 ...
...Export conveyor, 6... Frame, 7, 8... First rail, 24... Roller, 25... Stand, 26, 27
...Second rail, 30...Pushy board, 36,3
7... Positioning arm, 42, 43... Stop member, 45... Raw material receiving plate, 47... Bottom moisture-proof paper, 50... Notch, 54... Adsorption drum, 60
... Hollow support shaft, 62 ... Opening, 64 ... Suction hole, 65 ... Moisture-proof paper suction section, 74 ... Holding arm.

Claims (1)

[Claims] 1. A means for carrying in compressed tobacco raw material boxes consisting of a conveyor, and a suction section connected to the carrying means and having a cutout in a direction substantially perpendicular to the carrying direction of the box and a large number of suction holes adjacent to the cutout. and an outer periphery of a fixed inner cylinder, which has an opening in the axial direction facing the notch of the unwrapping bed, and a suction drum having suction holes on the circumferential surface facing the notch of the unwrapping bed. a moisture-proof paper removing means, which is rotatably provided in the suction drum, and a moisture-proof paper removing means formed by communicating the fixed inner cylinder of the suction drum and the suction portion of the unwrapping bed with a suction means; A means for carrying out compressed tobacco raw material, which comprises a box lifting means provided with a holding arm for the box, a raw material receiving member provided so as to be freely retractable from the unwrapping bed, and a conveyor connected to the unwrapping bed. What is claimed is: 1. A boxed compressed tobacco raw material unwrapping device equipped with a moisture-proof paper removing means.