JPS6220096B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an unpacking device for tobacco raw materials compressed and packed into a cardboard box having flaps, and more specifically, a device for unwrapping tobacco raw materials compressed and packed into a cardboard box having flaps. This invention relates to an unwrapping device for compressed tobacco raw materials packed in boxes, which is equipped with means for automatically cutting a band wrapped around the box in order to stop the process.

(Prior art) Generally, harvested and dried leaf tobacco is packed in barrels, pressed, and then stored and aged.In recent years, in order to reduce costs such as transportation and material costs, barrels have been used as containers for pressing and packaging the leaf tobacco. Instead, cardboard boxes made of cardboard or the like are now being 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, making unpacking difficult. In particular, the work of manually cutting the bands that are usually wrapped around the box in four places in parallel in order to secure the folding flaps formed at the top and bottom of the box is quite troublesome and is a factor that increases unpacking costs. becomes.

Furthermore, when the unpacking is carried out manually, there is a problem in that the raw materials unpacked from the box break up into leaves, which poses a problem in carrying out the work after unpacking.

(Problems to be Solved by the Invention) The present invention has been made by focusing on the above-mentioned problems when unwrapping packed and pressed raw materials. It is an object of the present invention to provide an unwrapping device that can automatically unwrap raw materials without causing the raw materials to collapse.

(Means for Solving the Problems) The present invention will be described in detail below with reference to the accompanying drawings showing embodiments.

FIG. 1 shows an overall schematic side view of the apparatus of the present invention, and FIG. 2 shows a schematic plan view thereof. 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 band cutting means C installed below the unwrapping bed B, and a box cutting means C installed below the unwrapping bed B. It mainly consists of a box lifting means D installed above, 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. be done.

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 table 25, a transfer and positioning means is provided for placing and positioning the box on the table 25 and for transferring the unwrapped raw material to the carrying-out means F. That is, as shown in FIG. 3 is a side view of the unwrapping section including the unwrapping bed B, band cutting means C, and raw material receiving member E, FIG. 4 is a plan view of the same, and FIG. 5 is a front view of the unwrapping section. In addition, support shafts 9, 10, 11, and 12 are provided at the top and bottom of the front and rear sides of the pedestal 6, and
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 51 denotes an electric motor, which transmits power to the support shaft 9 through the sprocket wheel 13 by a drive chain 50, thereby moving the roller 24 forward and backward. A stand 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 45 of the roller 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 row 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 lie down against the spring 31 in the direction of movement of the roller 24.

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, in the table 25 of the unpacking bed B, as shown in FIG. 4, a groove-shaped opening 46 is formed in the width direction perpendicular to the direction in which the boxes are conveyed by the carry-in conveyor 4. Further, details of the band cutting means C are shown in FIGS. 10 and 11. That is, air cylinders 47 and 48 are attached to both end supports of the pedestal 6,
A cutting section holding member 49 is provided in this air cylinder so as to be movable up and down. A slide bar 52 is arranged in parallel to this holding member 49, and this slide bar 52
A moving member 54 having a knife mount 53 is provided so as to be movable in the horizontal direction by a cylinder (not shown) supported by a holding member 49.

The disc-shaped knife 60 is rotatably provided on the knife mount 53 on a shaft 59 provided in a direction perpendicular to the groove-shaped opening 46 . This knife 60 is the 11th knife.
As shown in the figure, a support shaft 55 is provided in the upper part of the knife mount 53 in a direction perpendicular to the groove-shaped opening 46, and one end is pivotally supported on the support shaft 55, and the other end 56 is attached by a spring 57. By providing a knife support member 58 that is biased, it is configured to be able to move up and down about 2 cm.

Further, on the side surface of the knife 60, as shown in FIG.
is provided. This guide plate 61 has a thickness of at least about 3 cm, and is formed to be about 1.6 mm smaller than the radius of the knife 60. This knife 60
The guide plate 61 is connected to the pulley 62 of the shaft 59 by an electric motor 63 placed on the moving member 54 via a belt 65 hooked on the pulley 64 of the electric motor.
Rotation is driven by transmitting power to.

Next, the box lifting means D is horizontally movably suspended from a rail 69 supported by a pedestal 68, as shown in FIG. 70 is a support member, and this support member 70 has an electric hoist 71.
An elevating member 72 is provided via the elevating member 72.
The holding plate 73 is suspended. 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. In addition, the raw material receiving member E is
As shown in FIGS. 3 to 5, the air cylinder 6 has a raw material receiving plate 66 fixed vertically to the pedestal 6.
It is formed by being attached to the upper end of the piston 6a, and is vertically movable with respect to an opening 67 provided at approximately the center of the table 25 on which the box of the unwrapping bed B is placed.

(Function) The function of the device having the above configuration will be explained below.

As shown in FIG. 13, the compressed tobacco raw material box 1 is placed on the carry-in conveyor 4 with the flap surface 2 to be opened facing downward and the direction in which the band is wound parallel to the transport direction. Next, the paper is sent 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, 3 are opened laterally from above the roller 24.
7 is closed above the roller 24 by air cylinders 34 and 35, and the side contact portions 38 and 39 of the stop members 42 and 43 provided on the positioning arms 36 and 37 allow the compressed tobacco raw material box 1 to be rotated in the lateral direction. Positioned.

Next, in FIG. 3, the roller 24 is driven by the electric motor 51 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 roller 24 is 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 66. In this case, when the pusher plate 30 in the upright state at the tip of the roller group 24 passes the lower surface of the box 1,
As shown in FIG. 9, it is pushed to the right in the figure against the biasing force of the spring 31. Next, as shown in FIG. 10, the air cylinders 47 and 48 are operated, the support member 49 is raised, and the disc-shaped knife 60, which is being rotated by the electric motor 63, is projected from the inside of the groove-shaped opening 46. Next, the moving member 54 is moved by an air cylinder (not shown) built into the supporting member 49.
The knife 60 on the knife stand 53 is moved from one end of the groove-shaped opening 46 to the other end through the knife stand 53, and
Cut the band wrapped around box 1 above. At this time, as shown in FIG. 11, the disc-shaped knife 60 is biased upward around the support shaft 55 by a spring 57, and can be moved up and down by about 2 cm, so that the box 1 is not deformed. Also, since a guide plate 61 is provided on the side of the disk-shaped knife 60 as shown in FIG. 12, the box 1 can be cut deeper than necessary at the same time as the band. This will prevent the moisture-proof paper inside from being cut. After cutting the band,
The knife 60 is moved to the stand 2 by the air cylinders 47 and 48.
5, and the positioning arm 36,
37 is opened by air cylinders 34 and 35.
Next, the lifting member 72 of the box lifting means D, which was waiting above the unpacking bed B, is extended with scissors, and the holding plate 73 is moved as shown in FIG.
is lowered to a position where it touches the top surface of box 1. Next, as shown in FIG. 14, 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 to remove the compressed tobacco raw material 3 inside the box. Due to its own weight, the raw material 3 is dropped and placed on the table 25 of the unpacking bed B.

In this case, in order to prevent the raw material from collapsing and scattering due to the falling of the raw material 3, as shown in FIG. stand 25
The raw material 3 is raised upward 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 and lowered gently, as shown in FIG. The raw material 3 can be placed on the table 25 in a specific manner. The empty box 1a with the raw material 3 unwrapped 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.

Incidentally, since the upper and lower surfaces of the compressed tobacco material placed on the table 25 of the unwrapping bed B mentioned above are covered with moisture-proof paper, this moisture-proof paper is removed manually. 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, The empty box 1a may be lifted and removed together with the empty box 1a, and automation may be achieved. 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 is done by pushing out the pusher plate 30 in an upright state by a spring 31 at 29. At this time, the moisture-proof paper 77 on the bottom surface of the raw material 3
In order to remove the raw material 3 without transferring it to the carrying out means F, a suction hole (not shown) is provided at approximately the center of the table 25 of the unwrapping bed B, and the pushing plate 30 sends out the raw material 3 to the carrying out conveyor 5. At the time of conveyance, the moisture-proof paper at the bottom may be adsorbed to the suction hole to prevent it from being sent onto the conveyor 5. Further, as a means for feeding the box 1 onto the table 25 of the unpacking bed B, instead of the roller 24 described in the above embodiment, a pushing means using a hydraulic cylinder or the like which is generally provided may be used. good.

(Effects of the Invention) Since the present invention is as explained in detail above,
When unwrapping tobacco raw materials from a box of packed compressed tobacco raw materials, the packing band can be automatically and easily reliably and at low cost by preventing miscuts or cutting too far into the inside of the box even when the box is slightly distorted. In addition to being able to cut the compressed tobacco raw material, there is an advantage that the compressed tobacco raw material can be automatically unwrapped without causing the raw material to crumble.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of an apparatus showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the unpacking section, Fig. 4 is a plan view of the same, and Fig. 5 is the same. Front view, No. 6
The figure is a partial explanatory view showing the roller support mechanism, Figure 7 is a front view of the pusher plate, Figures 8 and 9 are partial explanatory views showing how the pusher plate is attached, and Figure 10 is a partial explanatory view showing the band cutting means. Front view shown, Figures 11 and 12
The figure is a partial explanatory view of a disc-shaped knife, Figure 13 is a perspective view of a box with the bottom flap partially open, in which compressed tobacco raw materials are packed, and Figures 14 to 14 show the order of unwrapping the boxed compressed tobacco raw materials. figure. DESCRIPTION OF SYMBOLS 1... Compressed tobacco raw material box, 2... Flap, 3... Compressed tobacco raw material, 4... Carrying in conveyor, 5... Carrying out conveyor, 6... Frame, 7, 8... First rail, 25...
Base, 26, 27... Second rail, 30... Pusher plate, 36, 37... Positioning arm, 42, 43...
Stop member, 60... Disk-shaped knife, 66... Raw material receiving plate, 74... Holding arm.

Claims (1)

[Claims] 1. A means for carrying in compressed tobacco raw material boxes consisting of a conveyor; an unwrapping bed connected to the carrying means and having a groove-shaped opening in a direction perpendicular to the direction in which the boxes are carried;
A support member in which a movable member is horizontally movable on a holding member that is formed to be movable up and down with respect to a pedestal, one end of which is pivotally supported on a support shaft, and the other end of which is biased upward via a spring. band cutting means for the box, comprising a rotary knife supported by the box and provided with a guide plate, formed along the groove-shaped opening of the unwrapping bed; , a means for carrying out unwrapped tobacco raw materials, 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 device for unpacking compressed tobacco raw material in a box, which is equipped with a band cutting means.