JP2001018932A - Depalletizer with unsealing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suck and hold an unsealed case by a suction device and move the case in the stabilized state without damaging an outer flap and an inner flap when a sealing tape stuck on an outer flap section of the case repeatedly used many times like a returnable container is to be cut. SOLUTION: A depalletizer is provided with a central cutting mechanism formed of a pair of guide rollers for pressing wall faces facing each other of a case set along the longitudinal direction of a sealing tape T1 crossing butting section of two outer flaps a2, a2 and a cutter for cutting the sealing tape T1 in the longitudinal direction and also a side section cutting mechanism formed of a cutter for cutting the sealing tape T2, crossing the side edge on the same side as the outer flaps a2, a2 and a body (a) section of the case, in the longitudinal direction and a roller for pressing the body (a) section. Also a suction device for sucking on one face of the body (a) section of the unsealed case is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of superposing two outer flaps on the outer side of two inner flaps, covering a sealing tape over the abutting portion of both outer flaps, and further comprising two outer flaps. The present invention relates to an apparatus for opening a rectangular box to which a sealing tape is stuck over a side edge on the same side of a flap and a body part of the box, and for taking out stored articles.

[0002]

2. Description of the Related Art As shown in FIG. 2 (a), two outer flaps a ₁ and a ₁ are provided on a bottom side and an upper side of a rectangular box A such as a cardboard box. superimposing flap a _2, a _2, a sealing tape T ₁ astride the abutting portion of both outer flaps a _2, a _2, also, the side of the two sheets of the same side of the outer flap a _2, a ₂ there are sealing method of attaching the sealing tape T ₂ straddling the torso part b of the edge portion and the box a. In opening the box A sealed by this method, the sealing tapes T ₁ , T ₂ , T ₂ adhered in an H shape are cut in the longitudinal direction, respectively, and two outer flaps a ₂ are cut. , A ₂ is fixed.

[0003] By the way, in and has been used many times as is returnable containers box A of this square-shaped, the inner flaps a ₁ and the outer flap a ₂ is fold line b part in the meantime (see Figure 2 (j)) often inner flaps a ₁ and the outer flap a ₂ when the box a in a square shape has become extremely bent easily collapses inside the cylinder a of rectangular shape, also ridgeline cylinder a portion of a corner of the box a c The part (see FIG. 2 (a)) is extremely easy to bend. Therefore, the operation of cutting the sealing tapes T ₁ , T ₂ , T ₂ is extremely troublesome as compared with the case of a new box. For example, the position of the two outer flaps a ₂ , a ₂ shifted from directly above the butted portion may be cut off, or the gap between the inner flap a ₁ and the outer flap a ₂ superposed on the outer flap a ₂ may be observed. it is impossible to act on the cutter over, often damage the inner flaps a ₁ and the outer flap a _2. Inner flap
When the damage the a ₁ and the outer flap a _2, because not made a use as returnable containers, this situation must be avoided.

In a box of this kind which is used many times like a returnable box, a sealing tape adhered in an H shape
When the box is opened by cutting T ₁ , T ₂ , T _2, and the articles stored therein are taken out, the sealing tapes T ₁ , T ₂
There are various problems in handling of boxes in each process, such as cutting, opening the outer flap after opening, transporting boxes that are easily bent by repeated use, and folding boxes. . In handling a box that has been used many times, such as a returnable box, a first object of the present invention is to avoid the above-mentioned situation that occurs during the cutting operation of the sealing tapes T ₁ and T ₂ , The second purpose is to automatically separate the opened box from the article and move it under a stable state, and the third purpose is to reliably start up the outer flap a ₂ after opening. The fourth object is to move the box while preventing the box which is extremely easily bent at the fold line b and the corner ridge c after opening, and the fifth object is to move the box. The goal is to ensure that the box is folded and flattened.

[0005]

In order to achieve the first object, according to the present invention, two outer flaps a ₂ , a ₂ are superimposed on the outer sides of two inner flaps a ₁ , a ₁ , and the two outer flaps a ₁ , a ₁ are overlapped. Outer flaps a ₂ , a ₂
The tape T ₁ for sealing astride the abutting portion of the, also sealing tape T straddling the two sheets of outer flap a _2, a side edge of the same side of a ₂ and a box of the body part a in _{those 2} by opening the box shape those who adhered take out stored articles B, opposite walls of the box along the longitudinal direction of the straddle sealing tape T ₁ in the abutting portion of the outer flap a _2, a ₂ And a pair of guide rollers 1, 1 for pressing the tape, and a sealing tape T _{1 at} an intermediate position between the guide rollers 1, 1 and capable of laterally moving following slight lateral movement of the guide rollers 1, _1. Cutter 2 that cuts in the longitudinal direction
And a sealing tape that straddles the side edge of the same side of the outer flaps a ₂ and a ₂ and the body a of the box.
A cutter 4 for cutting the T ₂ in the longitudinal direction, and that a side cutting mechanism consisting of the roller 5 for pressing the barrel part a.

[0006] Performing unsealing work with this Deparetaiza, when two sheets of outer flap a _2, a ₂ butt portion cutting of straddling sealing tape T _1, the pair of guide rollers 1,
1 opposing walls of the box along the longitudinal direction of the sealing tape T ₁ is pressed in, is defined lateral position in the box at the time of cutting,
Based on the position setting, the cutter 2 disposed at an intermediate position between the guide rollers 1 and 1 can cut the center line of the butted portion of the _two outer flaps a ₂ and a ₂ . Therefore,
When cutting the sealing tape T _1, it is possible to prevent damaging the outer flap a ₂ by mistake. Further, when the outer flap a _2, cleavage of the straddle sealing tape T ₂ to a side edge portion and a body a portion of the box of the same side of a _2, which cylinder a of the sealing tape T ₂ and extends over The inner flap a ₁ and the outer flap a _2, which are often pressed down by the roller 5, thereby dropping below the height of the fold line b, are pushed up, and the sealing tape T ₂ in a state where the posture is corrected. Can be caused to act on the cutter 4. Therefore, it is possible to prevent damage when cutting the sealing tape T _2, accidentally inner flaps a ₁ and the outer flap a _2.

On the other hand, in order to achieve the second object, according to the present invention, two outer flaps a ₂ and a ₂ are overlapped on the outer side of the two inner flaps a ₁ and a ₁ , and both outer flaps a ₁ and a ₂ are overlapped. _2, the abutting portion sealing tape T ₁ straddling the a _2, also straddling the two sheets of outer flap a _2, a side edge of the same side of a ₂ and a box of the body part a in that opening the box shape better to adhere the sealing tape T ₂ to take out the stored articles B, the outer flap a _2,
a pair of guide rollers for pressing the opposing walls of the box along the butt portion of a ₂ in the longitudinal direction of the straddle sealing tape T ₁ 1, 1
And a cutter 2, which is located at an intermediate position between the two guide rollers 1, 1 and can move laterally following the lateral movement of the guide rollers 1, ₁ and cuts the sealing tape T1 in the longitudinal direction. and cutting mechanism, and the outer flap a _2, a cutter 4 extending over sealing tape T ₂ to the side edge and a box of the body a portion of the same side of a ₂ to cut longitudinally, the barrel part a A side cut mechanism comprising a roller 5 for pressing, a receiving plate 8 for receiving stored articles B from the bottom side of the opened box, and a side of the receiving plate 8 And a suction device 10 which can move up and down while acting on one surface of the body a.

When an opening operation is performed using the depalletizer, the article B in the box opened after the opening operation described above is performed.
While receiving the sheet on the receiving plate 8, the suction device 10 suction-holds one surface of the body a portion of the box and temporarily lowers only the box. With this operation, the upper two inner flaps a ₁ and a ₁ are automatically started up with the article B supported by the receiving plate 8. Next, when the suction device 10 holding the body a of the box by suction is lifted, only the box covering the four circumferences of the stored article B can be extracted and separated from the article B,
It can be moved under stable conditions. The article B separated from the box is transported to another process by a transport device such as a conveyor.

In each of the above cases, the center cut mechanism is symmetrical to the bottom and upper sides of the box as shown in FIG. 3, and the side cut mechanism is the box cut as shown in FIG. if it symmetrically arranged on the bottom side and the upper on both sides, it is possible to perform the cutting of the sealing tape T ₂ and the cutting of the sealing tape T ₁ at each location.

By the way, in the case of each of the above, as part of the central cutting mechanism, a spring associated have been arranged in a direction perpendicular to the longitudinal direction of the sealing tape T ₁ to the two guide rollers 1,1 It is preferable to have 1e and 1e. When the spring 1e is provided to adjust the position of the pair of left and right guide rollers 1,1 at the spring 1e, cutters 2 on the two sheets of outer flap a _2, a ₂ of the butted portion of the center line
Can be reliably positioned. Therefore, when cutting the sealing tape T _1, the damaging of the outer flap a ₂ by mistake can be prevented completely.

Further, in each of the above cases, as a part of the side cutting mechanism, they act on the _two outer flaps a ₂ , a ₂ after cutting the sealing tape T ₁ and the sealing tape T _2. And a rising member 7 inserted into a gap between the _two outer flaps a ₂ and a ₂ and the inner flap a ₁ slightly expanded by the suction device 6. Is preferred. In this case, the two outer flaps a ₂ and a ₂ after the sealing tape T ₁ and the sealing tape T _{2 have been} cut by the suction device 6 are slightly lifted, and the _two flaps slightly expanded by the suction device 6 are removed. Outer flaps
It can be inserted to increase member 7 up in the gap between the inner flaps a ₁ and a _2, a _2. Therefore, it is possible to launch surely two sheets of outer flap a ₂ after opening in the start-up members 7. The suction device 6 may act on the _two outer flaps a ₂ , a ₂ at the same time, or the two outer flaps
It may be one that acts separately on each of a ₂ and a ₂ .

If the suction device 6 and the rising member 7 are arranged symmetrically on the bottom side and the upper side of the box A, respectively,
At each position, two outer flaps a ₂ , a ₂ can be raised. It is preferable that the leading end of the rising member 7 be tapered as shown in detail in FIG. Further, it is preferable that the rising member 7 has such a width as to simultaneously act on both of the _two outer flaps a ₂ and a ₂ , and it is most preferable that the rising member 7 has a shape as shown in FIG.

In order to achieve the fourth object of the present invention, according to the present invention, the vertical movement of the suction device 10
Acts on the surface of the body portion of the box extracted from the state covering the four circumferences of the storage article B, which is adjacent to the surface that is sucked and held by the suction device 10, and deforms the entire shape of this box into a flat rhombus. The operating member 11 is arranged. When the unsealing operation is performed using the depalletizer, the surface of the body a of the box adjacent to the surface that is sucked and held by the suction device 10 is pushed by the operating member 11 to deform the entire shape into a flat rhombus. Can be moved in this shape. As a result, the inner flap a ₁ and the outer flap a ₂ often bend from the fold line b when the box A is formed into a square shape and often falls inside the square body a when the box A is formed into a square shape. Also, it is possible to prevent the box that is extremely easily bent at the ridge line c of the corner from being bent.

In order to achieve the fifth object, according to the present invention, another suction device 12 is disposed so as to be movable in the horizontal direction corresponding to the suction device 10, and the suction device 12
The folding member 13 acting on the surface adjacent to the surface of the trunk portion of the box held by the above is disposed. This adsorption device 12
The suction device is moved to the side of a flat diamond-shaped box that is suction-held by the suction device 10 to hold the same surface by suction, and the suction device 12 is moved to the side of the flat diamond-shaped box to move the suction device. The flat diamond-shaped box that has been suction-held at 10 can be delivered to the suction device 12. And this adsorption device 12
By moving the box in the opposite direction, this box can be moved to the next process side, and by actuating the folding member 13 on the way, the flat rhombic box delivered to the suction device 12 is folded and flattened. Can be Note that the box folded flat can be moved to the next step by the suction device 12 as it is.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The most preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an exploded outline of all steps of the depalletizer according to the present invention. P ₁ in FIG. 1, superposed two sheets of outer flap a _2, a ₂ to outer of the two sheets of inner flaps a _1, a _1, astride the abutting portion of both outer flaps a _2, a ₂ the sealing tape T _1, was also attached a sealing tape T _2, T ₂ straddling the cylinder a part of the side edges and box a opposed to two of the outer flap a _2, a ₂ box a of rectangular shape, six in one step on a single pallet p placed on the conveyor C _1, which it is the position for supplying a three-stage stacked state. The plurality of boxes A supplied here are conveyors C ₁
Traveling by forward is on a pallet p, its pallet p in position P ₂ in the middle is rotated 90 degrees, only a plurality of boxes A are stacked on a pallet p at the next position P ₃ is taken out.

[0016] Then, each of them is a separate conveyor C _2.
It is allowed conveyed placed on, position P ₄ at astride sealing tape T ₁ in the abutting portion of the two sheets of outer flap a _2, a ₂
There is cut, also, two of the outer flap in position P ₅
The sealing tapes T ₂ , T ₂ straddling the opposite side edges of a ₂ , a ₂ and the body a of the box A are cut. Then position
Sealing tape T ₁ and sealing tape T _2, T ₂ of the bottom side and the upper box A after cutting two sheets of outer flap a _2, a ₂ by P ₆ is raised, respectively. Box A ₁ in which the bottom side and the upper of the two sheets of outer flap a _2, a ₂ was launched respectively is conveyed to the position P _7, once lowered only box A ₁ covering the periphery of the stored articles B. By this operation, the upper two inner flaps a ₁ and a _{1 of the} article B supported by the receiving plate 8 are positioned as shown in FIG.
Automatically launched as indicated by A ₂ in P _8. Then, increasing only the box A ₂ are sucked and held in such suction device, can be withdrawn only box A ₂ which covered the circumference of the article B, it is possible to move the box A _2. Incidentally, the article B that is allowed to separate from the box A ₂ separate step by the conveyor C ₃ (e.g., the article stacking unit) is conveyed to.

The box A ₂ withdrawn from a state of covering the four sides of the articles B are being raised to the position P _9, is deformed in a plane rhombic the overall shape of the box A ₂ at that position. This allows
It is possible to prevent the bending of the box A ₃ which is extremely bent easily by folding lines b portion and corners ridge c moieties. Then, the box A ₃ is made to move left planar rhombic, folded flat at position P _10, and is brought down horizontally as shown by A ₄ are stacked on different pallets p 'in position P ₁₁ machine It is taken out.

Through this series of steps, the boxes A sent one after another are opened, the contents are taken out one after another, and the boxes covering the surroundings are moved one after another in a form that is hard to bend. Folded flat on another pallet
Stacked on p 'and can be taken out of the machine. Pallet p became empty at position P ₃ are stacked one after another in positions P _0, it is returned to the front of the position P _1.
Moreover, the article B that came carried by conveyor C ₃ is taken out of the box, it is stacked to a further pallet p "in position P ₁₂ is fed to the next step. In the case shown in FIG. 1 Puts the sealed box A on the pallet p
Work and, the work of stacking the articles B after removal from the box to the pallet p ", the suction device is mounted side by side on the right beside the single head D d ₁ and chuck device to be extracted from the
are so as to separately performed and d _2. That is, the chuck device d ₂ in the suction device d ₁ and the front side on the other side of FIG. 1 with respect to one head D moves in the same way together with the head D. In this way, it is possible to apparatus for operating a suction device d ₁ and chuck device d ₂ is finished in one, to simplify the mechanism.

Next, the details of the process at position P ₄ will hereinafter be described in detail with mechanisms of that portion. (Steps and their parts position P ₄ mechanism, see Figure 3), the position P _4, the tape T ₁ is a straddle sealing the butt portion of the two sheets of outer flap a _2, a ₂ are cut longitudinally . The position P _4, a pair of guide rollers 1,1 which presses the opposing wall surfaces of the two sheets of outer flap a _2, a box along the butt portion of a ₂ in the longitudinal direction of the straddle sealing tape T ₁ A, A sealing tape T ₁ located at an intermediate position between the two guide rollers 1 and 1 and capable of laterally moving following slight lateral movement of the guide rollers 1 and _1.
And a cutter 2 that cuts the sheet in the longitudinal direction. More specifically, the upper and lower machine frames 1
a pair of left and right arms 1 extending downward and upward from a, 1a
Guide rollers 1 at the top and bottom at the inner tip of b, 1b
1 is attached. And both guide rollers 1, 1
The cutter 2 is attached so as to extend downward and upward from the transverse members 1c, 1c extending between the guide rollers 1, 1 as they come to an intermediate position between the guide rollers 1, 1. In two of the outer flap a _2, a ₂ butt portion cutting of straddling sealing tape T _1, the
The pair of guide rollers 1, ₁ presses the opposing wall surfaces of the box A along the longitudinal direction of the sealing tape T1, and determines the position of the box A in the left-right direction at the time of cutting. The center line of the butted portion of the _two outer flaps a ₂ and a ₂ can be cut by the cutter 2 disposed at an intermediate position between the rollers 1 and 1. In addition, the tape for sealing with this cutter 2
A state in which T ₁ is being cut longitudinally shown in FIG. 2 (b).

Press springs 1e, 1e are respectively disposed between the base ends of the pair of left and right arms 1b, 1b and members 1d, 1d located inside and protruding from the machine frame 1a. The spring 1e, to adjust the position of the pair of left and right guide rollers 1,1 at 1e, can be positioned reliably cutters 2 on the two sheets of outer flap a _2, a ₂ of the butted portion of the center line. Therefore, when cutting the sealing tape T _1, accidentally outer flap
it is possible to completely prevent damaging the a _2. As shown in FIG. 3, the box A has two outer flaps on the bottom side.
It is preferable to carry out this work by placing a ₂ and a ₂ on receiving plates 3 and 3 for receiving.

[0021] (process and their parts of the position P ₅ mechanism,
In Figure 4 reference) position P _5, the outer flap a _2, straddling sealing tape T ₂ to a cylinder a part of the side edges and box A of a _2, T ₂ is cut longitudinally. The position P _5, a cutter 4, 4 for cutting the sealing tape T _2, T ₂ in the longitudinal direction,
A side cut mechanism including a pair of rollers 5 and 5 for pressing the body a is provided. Cutters 4 and 4
In FIG. 4, there is a pair of left and right sides, which are provided symmetrically up and down. When cutting _two sealing tapes T ₂ , T ₂ straddling both side edges of the outer flaps a ₂ , a ₂ and the body a of the box A, a pair of rollers 5, 5 are used for sealing tapes. T ₂ , T ₂
Is pressed as shown in FIG. 4,
Whereby the inner flaps a ₁ and the outer flap a ₂ is often depressed than the height of the fold lines b is pushed, the cutter 4 toward the sealing tape T _2, T ₂ under a state where the posture is Tadashisa , 4 can act. Therefore, when cutting the sealing tapes T ₂ and T ₂ , the inner flaps a ₁
Damaging the or outer flap a ₂ can be prevented. FIG. 2C shows a state in which the sealing tapes T ₂ , T ₂ are cut in the longitudinal direction by the cutters 4, 4.

[0022] (process and their parts of the position P ₆ mechanism,
5, 6 reference) position P _6, sealing tape T ₁ and sealing tape T _2, T ₂ two sheets of outer flap a ₂ after the cut, a ₂
That is, the two outer flaps a ₂ , a ₂ after opening can be reliably raised. The position P _6, and two adsorbers 6,6 spreading them slightly by acting on the outer flap a _2, a ₂ of the two after opening, both adsorber 6,6
The two outer flaps a ₂ , a ₂ slightly expanded by this and the rising member 7 inserted into the gap between _one inner flap a ₁ are provided. More specifically, both adsorption devices 6, 6 can be moved up and down by a cylinder 6a, and one rising member 7 can be operated by a cylinder 7a in the direction of the arrow in FIG. It has become. 5 shows only the case on the bottom side of the box A, and also shows only the suction device 6 on the near side of FIG. 5 and omits the upper device. On the upper side, the same mechanism as that shown on the lower side in FIG. In operation at the bottom side of the box A, firstly, the cylinder 6a, 6a and is thereby the two sheets of outer flap a _2, a ₂ after opening in adsorber 6,6 retains adsorbed actuated, spread them slightly . Then, the one rising member 7 is moved in the direction of the arrow in FIG. 5 by operating the cylinder 7a. Then, one rising member 7 can be inserted into a gap between the _two outer flaps a ₂ and a ₂ slightly expanded by the suction devices 6 and 6 and the one inner flap a ₁ . Therefore, the two outer flaps a ₂ and a ₂ after opening can be reliably raised by the rising member 7. If the two suction devices 6, 6 and one rising member 7 are arranged symmetrically on the bottom side and the upper side of the box A, respectively, two outer flaps a ₂ , a ₂ are provided at each position. Can be launched. As shown in FIG. 6, the tip of the rising member 7 is preferably tapered. Further, it is preferable that the rising member 7 has such a width as to simultaneously act on both of the _two outer flaps a ₂ and a ₂ , and it is most preferable that the rising member 7 has a shape as shown in FIG. Although not shown, this operation is preferably performed while holding the body a of the box A from the outside. Note that the two outer flaps a ₂ ,
a state in which a ₂ is launched, respectively shown in Figure 2 (d).

[0023] (process and their parts of the position P ₇ mechanism,
Box A ₁ which outer flap a ₂ of the two bottom side and the upper, a ₂ was launched respectively in Figure 7 refer) position P ₆ is sent to the position P ₇ which is the next step. In the position P _7, 7
As shown in FIG. ₁ , a receiving plate 8 for supporting a portion of the article B stored in the box A ₁ that faces the bottom inner flaps a ₁ and a ₁ , and a lateral side thereof (FIG. 7, an auxiliary plate 9 for receiving a portion including the two inner flaps a ₁ , a ₁
9 should be received. The two auxiliary plates 9, 9 fall down with respect to the receiving plate 8. In the case shown in FIG. 7, the operation of the cylinder 9a causes the two auxiliary plates 9, 9 to fall downward about the respective shafts 8a, 8a on the receiving plate 8 side via the link mechanisms 9b, 9b. ing. When the two auxiliary plates 9 and 9 fall from the position of the solid line in FIG. 7 in the direction of the arrow, the two inner flaps a ₁ and a ₁ that have been supported by them are in a state of hanging down from the horizontal state. . FIG. 2E shows a state in which the two inner flaps a ₁ and a ₁ hang down.

[0024] (mechanism steps and their parts position P _8, P _9, see FIGS. 8, 9) under this state, adsorb it by acting like suction device to the body a portion of the box and join A ₁ holding, pulling once only box a ₁ covering the four sides of the stored articles B.
Then, the upper two inner flaps a ₁ and a _{1 of the} article B supported by the receiving plate 8 are automatically raised at the position P ₈ in FIG. 1 as indicated by A ₂ . FIG. 2 (f) shows a state in which the upper two inner flaps a ₁ and a ₁ are set up by the stored articles B.

[0025] Then, increasing only the box A ₁ and suction-held by such suction device, it covered the four sides of the article B box
Can be withdrawn only A _2, it is possible to move the box A ₂ freely. Incidentally, only the box A ₂ is withdrawn, showing a separated state of the article B in FIG. 2 (g). The articles B that is allowed to separate from the box A ₂ as shown in FIG. 1, a separate step by the conveyor C ₃ (e.g., the article stacking unit) is conveyed to.

[0026] Thus, or decrease the box A ₁ covering the four sides of the stored articles B, and raises utilizes suction device 10 which acts on the trunk a portion of the box A ₁ A vertically movable Is the best. For example, as shown on the left side of FIG.
The lifting device 10b, which can be moved up and down along the columns of the tower 10a, is provided with the suction device 10, and the lifting device 10b is connected to the belt 10d that travels in the vertical direction by driving the motor 10c. 10 can be moved up and down. The suction device 10 shown in FIG.
0b, 10b in a pair in total four have provided twofold respectively, cylinder a of one box A ₁ in this set of adsorber 10, 10
Four portions on the same surface of the portion can be simultaneously suction-held. This set of suction devices 10, 10 is designated by the reference numeral in FIG.
The cylinder shown in 10e, or in contact with the box A ₁ to be held by suction, and away therefrom.

The vertical movement of the suction devices 10, 10 allows the stored articles B to be placed on the pair of upper and lower elevating tables 10b, 10b.
Of acting on the face adjacent to the face which is sucked and held by the suction device 10, 10 of the torso portion of the box A ₂ withdrawn from a state of covering the four circumferential plane rhombic the overall shape of the box A ₂ An actuating member 11 for deforming the member is disposed. For example, as shown in FIG. 9, the operating member 11 is attached to the tip of a rod of a cylinder 11a, and the cylinder 11a is
It is good to hold with 10b, the arm 11b which can be rotated planarly with respect to 10b. When the arm 11b is rotated from the state shown by the solid line in FIG. 9 as shown by the chain line in FIG. 9, the operating member 11 also comes to the position shown by the chain line in FIG. In this moment, actuating the cylinder 11a, the actuating member 11 can be actuated in the arrow direction in FIG. 9, thereby the entire shape of the box A ₂ was square-shaped can be deformed to a flat rhombic. Thereby, the fold line b
The inner flap a ₁ and the outer flap a ₂ often bend from the fold line b, and the corner ridge c. It is possible to prevent a box that is extremely easily bent at a portion from being bent.
In the case shown in FIG. 9, another suction device 10 'is attached to the arm 11b.
The other body a portion of the rectangular box A ₁ that is suction-held by the suction device 10, that is, the portion adjacent to the surface that is suction-held by the suction device 10, The suction device 10 'simultaneously holds the suction. Then, it has become the actuating member 11 from this state to be actuated in the arrow direction in FIG. 9, thereby the entire shape of the box A ₂ was square-shaped can be deformed to a flat rhombic. Incidentally, showing the state in which the box A ₃ was deformed in the plane rhombic in FIG 2 (h).

[0028] (mechanism steps and their parts position P _10, 8, 10 see) box A ₃ which is deformed in a planar rhombic at position P ₉ is another position, which is the next step (position
Is moved to the P _10). For this purpose, as shown in FIG. 8, another suction device 12 is arranged so as to be movable in the horizontal direction in correspondence with the suction device 10. The suction device 12 have been arranged on the side of the tower 10a in the position P ₉ as shown in FIG. 10, in which can be moved in against the tower 10a in the left-right direction in FIG. 8. For example, the suction device 12 is arranged on a base 12a which can be slid in the left-right direction of FIG. May be slid in the left-right direction. When the base 12a slides to the left in FIG.
The adsorbed and held the box A ₃ planes rhombus being sucked and held by the suction device 10, 10 in the suction device 12, 12 in the P ₉ can be delivery to the suction device 12. When returning the base 12a in the down position, it is possible to move the box A _3, which is retained by suction by the suction device 12, 12 to the position P _10. If like adsorber 12 also adsorption device 10 shown in FIG. 8, a four in one set, it attracts and holds the cylinder a part of one of the box A ₃ In this set of adsorber 12, 12 Can be. In addition, this set of suction devices 12 and 12
The cylinder shown in 12d, or in contact with the box A ₃ to be held by suction, and away therefrom.

As shown in FIG. 8 and FIG. 10, the folding member 13 is placed on the base 12a so as to come to the side of the set of suction devices 10 and 10 and is planar with respect to the base 12a. It is arranged to be able to rotate. The folding member 13 acts on a surface adjacent to the surface of the box A ₃ of the box A ₃ held by the set of suction devices 12, 12 which is held by the suction devices 12, 12. The folding member 13 by operating as shown by the arrow from the position indicated by the solid line in FIG. 10, it can be flattened by automatically folding the box A ₃ planes rhombic that passed to the adsorption device 12, 12 . FIG. 2 (i) shows a flat folded state.

[0030] (steps and their parts position P ₁₁ mechanism, see FIG. 8) box A ₄ folded into a flat by the folding member 13 by a pair of suction devices 12, 12 held by suction in a vertical direction I have. Then, this beat the can lay down as shown by A ₅ in FIG. 1 in a horizontal state can be stacked on pallets p 'in this state. And a pallet
It can be taken out of the machine with p '. In order to perform this operation automatically, the standing base 12a may be tilted horizontally. For example, as shown in FIG. 8, if the base of the base 12a is rotated about a shaft 12e, the standing base 12a falls down horizontally, so that the base 12a is provided with the base 12a. a set of boxes a ₄ flat which is retained by suction by the suction device 12, 12 are capable of laying as indicated by a ₅ in FIG.

[0031]

Doing unsealing work with Deparetaiza of claim 1, wherein, according to the present invention, or damage the outer flap a ₂ by mistake when cutting the sealing tape T _1, by mistake when cutting the sealing tape T ₂ there is an advantage that it is possible to prevent damaging the inner flaps a ₁ and the outer flap a _2.

When the opening operation is performed using the depalletizer according to the second aspect, in addition to the above-mentioned advantages, in addition to the above-mentioned advantages, only the box covering the four circumferences of the storage article B in the opened box is efficiently extracted. There is an advantage that it can be separated from the article B and can be moved under a stable state.

[0033] When performing the opening operations using Deparetaiza of claim 3, there is an advantage that it is possible to completely prevent damaging the outer flap a ₂ by mistake when cutting the sealing tape T _1.

[0034] When using Deparetaiza according to claim 4 has the advantage that it is possible to launch reliably outer flap a ₂ after opening.

When the depalletizer according to the fifth aspect is used, it is very easy to bend at the fold line b after opening and when the box A is formed into a square shape, it often falls into the inside of the square body a. bent and from the inner flaps a ₁ and fold lines b of the outer flap a _2, ridge corners c
There is an advantage that the box can be moved while preventing the box which is extremely easily bent at a portion from being bent.

In the case where the depalletizer according to the sixth aspect is used, the flat diamond-shaped box can be automatically folded and flattened in a stable state in which the box a portion of the box is sucked and held. There is an advantage that it can be moved to the next step.

[Brief description of the drawings]

FIG. 1 is an exploded view illustrating an outline of all steps of a depalletizer according to the present invention.

FIG. 2 is an exploded view illustrating a step of opening a box sealed with a sealing tape.

FIG. 3 is a schematic view showing a center cutting mechanism for cutting a sealing tape straddling a butt portion of two outer flaps.

FIG. 4 is a schematic view showing a side cut mechanism for cutting a sealing tape which straddles both opposing side edges of two outer flaps and a box body.

FIG. 5 is a schematic view showing an example of a rising mechanism of the outer flap after opening.

FIG. 6 is a bottom view of the start-up mechanism shown in FIG. 5, together with a box to be processed.

FIG. 7 is a schematic diagram showing a state in which the box after the outer flap is raised is supported by the receiving plate.

FIG. 8 shows a mechanism for vertically moving a box after opening, a mechanism for deforming the box into a flat rhombus, a mechanism for removing a box deformed into a flat rhombus, a mechanism for folding the box flat, and a flat folding. FIG. 4 is a schematic elevational view showing a mechanism for folding a closed box horizontally.

FIG. 9 is a schematic plan view showing only a mechanism for deforming the box into a flat rhombus in the mechanism shown in FIG. 8;

10 is a schematic plan view showing a mechanism for taking out a box deformed into a flat rhombus and a mechanism for folding the box flat out of the mechanisms shown in FIG. 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Guide roller, 1e ... Spring, 2 ... Cutter, 4 ... Cutter, 5 ... Roller, 6 ... Suction device, 7 ... Starting member, 10
... adsorber, 11 ... actuating member 12 ... suction device, 13 ... folding member, A, A ₁ to A ₅ ... box, a ... cylinder, a ₁ ... inner flap, a ₂
... outer flaps, b ... folding lines moiety, c ... ridge portion of the corner, T _1, T ₂ ... sealing tape, B ... article, p, p '... palette.

Claims (6)

[Claims] 1. A superposing two sheets of inner flaps a _1, two sheets of outer flap on the outside of a ₁ a _2, a _2, a sealing astride the abutting portion of both outer flaps a _2, a ₂ the tape T _1, also, the two sheets of outer flap a _2, a ₂ box a of rectangular shape was attached to sealing tape T ₂ straddling the side edges and the body a portion of the box on the same side in those taking out stored articles B and opened, the outer flap a _2, a pair of guide rollers 1 for pressing the opposing walls of the box along the longitudinal direction of the straddle sealing tape T ₁ in the abutting portion of a _2, 1, a cutter 2 for cutting the sealing tape T1 in the longitudinal direction, which is located at an intermediate position between the two guide rollers 1, 1 and which can move laterally following a slight lateral movement of the guide rollers 1, ₁
And a sealing tape that straddles the side edge of the same side of the outer flaps a ₂ and a ₂ and the body a of the box.
A cutter 4 for cutting the T ₂ in the longitudinal direction, Deparetaiza having a opening mechanism, characterized in that a side cutting mechanism consisting of the roller 5 for pressing the barrel part a. 2. A superimposing two sheets of inner flaps a _1, two sheets of outer flap on the outside of a ₁ a _2, a _2, a sealing astride the abutting portion of both outer flaps a _2, a ₂ the tape T _1, also a box of the two sheets of outer flap a _2, who was stuck a sealing tape T ₂ straddling the side edges and the body a portion of the box on the same side of a _2-shaped In the one in which the storage article B is taken out by opening, the outer flap
a ₂ , a pair of guide rollers 1 pressing the opposing wall surfaces of the box along the longitudinal direction of the sealing tape T ₁ straddling the butted portion of a ₂ .
1 and a cutter 2 that is located at an intermediate position between the two guide rollers 1 and 1 and that can move laterally following the lateral movement of the two guide rollers 1 and ₁ and that cuts the sealing tape T1 in the longitudinal direction. a central cutting mechanism, and the outer flap a _2, a cutter 4 extending over sealing tape T ₂ to the side edge and a box of the body a portion of the same side of a ₂ to cut longitudinally, the barrel part a And a receiving plate 8 for receiving stored articles B from the bottom side of the opened box, and a box on the side of the receiving plate 8. A depalletizer having an opening mechanism, comprising: a suction device 10 that can move in a vertical direction while acting on one surface of a body a portion of the body. The method according to claim 3 the central cutting mechanism, the spring 1e associated with the two guide rollers 1,1 have been arranged in a direction perpendicular to the longitudinal direction of the sealing tape T _1, and characterized in that it comprises 1e A depalletizer provided with the opening mechanism according to claim 1. 4. A suction device 6 which acts on the _two outer flaps a ₂ , a ₂ after cutting the sealing tape T ₁ and the sealing tape T ₂ to slightly spread them, the side cutting mechanism comprising: The two outer flaps a ₂ , slightly expanded by the suction device 6,
Deparetaiza with the opening mechanism according to claim 1 or 2, characterized in that it comprises a launch member 7 to be inserted into the gap between the inner flaps a ₁ and a _2. 5. A surface adjacent to a surface that is sucked and held by the suction device 10 in a body portion of a box extracted from a state covering the four circumferences of the storage article B by the vertical movement of the suction device 10. 3. An actuating member (11) which acts on the box and transforms the entire shape of the box into a flat rhombus is arranged.
A depalletizer provided with the opening mechanism described in the above. 6. Another suction device 12 is disposed movably in the horizontal direction corresponding to the suction device 10, and the suction device 12
The depalletizer provided with an opening mechanism according to claim 2, wherein a folding member (13) acting on a surface adjacent to the surface of the body portion of the box held by (12) is arranged.