JP5457718B2 - Box lid opening device - Google Patents

Description

  The present invention relates to a box lid opening device for opening a box lid in a pre-process for storing a product in the box. In particular, the present invention relates to a cardboard box lid opening device.

  Conventionally, paper boxes have been used for packing and transporting goods. In general, when a small amount of goods is stored, a paper box is used.

  For example, Patent Document 1 discloses a paper container side flap folding method and apparatus for folding a paper container side flap that is wider than a predetermined range in a transfer direction.

  In the side flap folding apparatus for paper containers disclosed in Patent Document 1, the conveyor installed substantially horizontally has an opening with a flap on at least the top surface side and is three-dimensionalized in a state where the opening is open. Supporting pieces for supporting the paper container so that the opening part faces one side are provided at predetermined intervals, and in the middle of the transfer direction of the conveyor, the opening part is in a state where it does not interfere with the paper container being transferred by the conveyor. Posture correction means is provided for displacing the side flaps formed on the rear side in the transfer direction and expanded (tilted) outward of the opening portion in the upright direction. A tucker that rotates in the transfer direction to tilt the side flaps displaced in the standing direction by the correcting means to the inside of the opening is provided.

  Patent Document 2 discloses a flap opening device for a cardboard box in a packaging machine. A flap opening device for a corrugated cardboard box in a packaging machine described in Patent Document 2 includes: a frame structure; a conveyor that travels horizontally below the frame structure; a first cylinder that is fixed to an upper central portion of the frame structure; A hanger head that is fixed to the cylinder rod of the cylinder and is thereby slid vertically up and down, and a hook that is fixed upward to the frame structure adjacent to the first cylinder and engaged with the hanger head at the tip. A second cylinder having a cylinder rod, a fixed plate suspended from a hanger head via a shaft, a slide base vertically slid along the shaft above the fixed plate, and fixed on the slide base A third cylinder that drives the slide base up and down with respect to the fixed plate, and a third cylinder that is indirectly joined to the fixed plate and the slide base. Two pairs of levers that can be opened and closed in the vertical or horizontal direction on the basis of the drive, and is fixed to the frame structure top and in which a fourth of the cylinder that slides flap hold-down bar in the vertical direction up and down.

  Patent Document 3 discloses a flap opening device for a cardboard box. In the flap opening device described in Patent Document 3, an endless chain conveyor constituting a part of the feeding path is sandwiched between flap opening positions of the machine frame provided along the feeding path of the cardboard box, and intermittently by the conveyor. A stopper for holding or releasing the corrugated cardboard box to be fed is provided, and a tacker base and a guide base that are lifted and lowered independently by a cylinder are provided on the machine frame, and two gears meshing with each other are provided on the tucker base. The upper ends are respectively fixed to the rotating shafts, and the upper ends are fixed to the rotating shafts of the two gears that mesh with the pair of front and rear inner flap tuckers that are opened and closed in the direction of the feeding path by the rotation of the gears, A pair of left and right outer flap tuckers that open and close in a direction perpendicular to the feed path by the lower end pressing portion by the rotation of the gears, Flap that connects the cylinders that reciprocate them to the car, pushes down the inner and outer flaps expanded by the two sets of flap tackers to the guide base, and folds them along the outer surface of the cardboard box A guide is installed vertically.

  Further, Patent Document 4 discloses a ball box opening / closing device. In the ball box opening and closing device described in Patent Document 4, the flap is raised vertically by four fingers (see Fig. 4), and the flap of the ball box is maintained in an upright state by a suction cup.

JP-A-11-278411 Japanese Utility Model Publication No. 57-202904 Japanese Utility Model Publication No. 56-024608 US Pat. No. 5,558,614

  However, in recent years, recycling activities are generally active in order to effectively use earth resources in recent years. Recycling needs are also demanded for the above paper containers and the like, and the paper containers, particularly cardboard boxes which are a kind of paper containers, are also required to be able to be recycled.

  In general, cardboard boxes are often used for packaging and transporting a large amount of goods. Corrugated cardboard boxes are effective in absorbing impacts and preventing dirt on packed products, and are used in many distribution channels.

  Thus, when recycling a paper container, for example, a cardboard box, it is necessary to open the lid of the box and re-insert the product, and a lid opening device that opens the lid of the box is required. Even if the techniques described in Patent Literature 1 to Patent Literature 4 are applied to a box at the time of recycling, the lid cannot be appropriately opened. For example, a box at the time of recycling has dirt and bending. Therefore, even if the techniques described in Patent Documents 1 to 4 are applied, there is a problem that the cover cannot be smoothly released due to deformation at a portion other than the intended crease portion due to the influence of bending or the like.

  Furthermore, in a new box, the crease is inside the box between each of the four pieces and the side wall, but there is no crease on the outside. There is also a problem that the cover is deformed and the lid cannot be smoothly released.

  Moreover, dirt may adhere to the surface of the cardboard box, and there are cases where it is not possible to properly adsorb even if only a suction device such as a suction cup is used. For this reason, at the time of recycling, the box opening operation is often performed manually, but the manual operation cannot stably supply the product to the automated product input device.

  An object of the present invention is to provide a box lid opening device that can reliably open a box lid.

  It is another object of the present invention to provide a box lid opening device that can reliably open a new cardboard box and a recycled cardboard box.

(1)
The box lid opening device according to the present invention is a box lid opening device for positioning each of the four pieces to be a box lid provided extending from each side wall of the box having a side wall on the outside of the box, A support member for supporting the vicinity of the crease inside the box from the outside of the side wall between each of the four pieces and the side wall, and moving each of the four pieces outward from at least the upright position of the box while locking each of the four pieces of the box And flap opening means. Further, the flap opening means includes four bar-shaped members each having a claw corresponding to each of the four pieces serving as a box lid, an opening driving unit for adjusting the opening of the four bar-shaped members, and an opening driving And a moving unit that moves the four bar-shaped members in the vertical vertical direction.

  In the box lid opening device according to the present invention, the support member supports the four folds inside the box between the four pieces and the side wall from the outside of the side wall, and the flap opening means locks the four pieces of the box. In the meantime, each of the four pieces is moved outward from at least the upright posture of the box (the posture standing up along the side wall of the box).

  In this case, the lid of the box can be reliably opened to the outside. Therefore, it is possible to reliably store the product or the like in the box in the subsequent process. Even if the box is recycled or new, the support member reliably supports the vicinity of the crease from the outside of the side wall. Can be folded outside.

Each of the four pieces of the box can be locked by the four rod-shaped members, and the four rod-shaped members are opened by the opening driving unit while the four rod-shaped members are moved vertically upward by the moving unit. By adjusting the degree, each of the four pieces of the box can be moved to the vertical posture from the inside of the box. Furthermore, each of the four pieces of the box can be reliably folded outward by moving the four rod-like members vertically downward by the support member and the moving portion.

( 2 )
The flap opening means further includes a control unit, and the control unit includes four rod-shaped members in a space formed between the four pieces in a state where each of the four pieces serving as a lid of the box is folded inside. When the moving unit is instructed to move vertically downward to be inserted, and the four bar members are inserted into the space by the moving unit, the opening degree of the four bar members is increased. The drive unit may be instructed to instruct the moving unit to move the four rod-shaped members vertically upward when the four rod-shaped members each lock the four pieces serving as the lid of the box.

  In this case, the control unit moves vertically downward so that the four rod-shaped members are inserted into the space formed between the four pieces in a state where the four pieces serving as the lid of the box are folded inward. When the four rod-shaped members are inserted into the space by the moving unit, the opening drive unit is instructed to increase the opening of the four rod-shaped members. When the four pieces serving as the lid of the box are locked by the bar-shaped members, the moving unit is instructed to move the four bar-shaped members vertically upward.

  As a result, even when each of the four pieces serving as the box lid is folded inside the box, for example, when the box lid is closed like a bowl, Can be in an upright position.

( 3 )
When the controller moves the four pieces of the lid of the box outward from the upright posture with the four rod-shaped members, the controller adjusts the opening of the four rod-shaped members further after opening the opening of the four rod-shaped members. The four rod-shaped members may be controlled to move vertically downward.

  In this case, when the control unit moves the four pieces of the lid of the box outward from the upright posture by the four rod-shaped members, the opening adjustment unit further opens the opening of the four rod-shaped members, Each of the four pieces of the box lid can be opened to the outside from the upright posture, and thereafter, the four pieces are further pushed in the vertically downward direction by the moving unit. It can be reliably folded outward.

( 4 )
When the control unit moves each of the four pieces of the box lid from the inside of the box to the outside via the upright posture by the four rod-like members, the opening degree adjustment unit further sets the opening degree of the four rod-like members. In addition to increasing the size, the moving unit may be controlled to move the four bar-shaped members vertically downward.

  In this case, when the control unit moves each of the four pieces of the box lid from the inside of the box to the outside via the upright posture by the four rod-like members, the opening adjustment unit further includes four rod-like members. Since the opening degree is increased and the four rod-shaped members are controlled to move vertically downward in the moving part, each of the four pieces serving as the lid of the box can be smoothly folded outward.

( 5 )
The four rod-shaped members may be provided with a sliding mechanism that smoothly holds the inner surface of each of the four pieces on the claw.

  In this case, since the claw of the four individual rod-shaped members is provided with a sliding mechanism, when the box is discharged to a subsequent process, the state in which each of the four pieces serving as the lid of the box is opened outward is maintained. be able to. That is, when the box is discharged to the subsequent process, it can be kept pressed by the sliding mechanism without damaging the inner surface of each of the four pieces of the box, and the state where each of the four pieces of the box is folded outward can be maintained. . Therefore, since a suction device or the like is not used, power consumption can be reduced, and silencing and cost reduction can be achieved. Here, the sliding mechanism may be a planar mechanism or a rotating body such as a roller.

( 6 )
The support member may press the vicinity of the four folds from the outside of the box.

  In this case, since the supporting member presses the vicinity of the folds of the four pieces from the outside of the box, the vicinity of the folds of the box is pressed inward and the four pieces of the lid of the box are easily bent. That is, it is possible to prevent a deformation state in which the box swells outward.

( 7 )
The support member may support the vicinity of the fold line in each vertical line direction of each of the four pieces locked by the four rod-shaped members.

  In this case, since the support member supports the vicinity of the fold line in each vertical line direction of each of the four pieces that are locked by the four rod-shaped members, each of the four blocks that are locked by the four rod-shaped members and applied with force. A fulcrum that can reliably support the force point of the piece can be formed.

( 8 )
The support member may be provided so as to be movable so as not to obstruct the carry-in direction in which the box is carried in from the previous process and the discharge direction in which the box is discharged to the subsequent process.

  In this case, the support member is provided so as to be movable so as not to obstruct the carry-in direction in which the box is carried in from the previous process and the discharge direction in which the box is discharged to the post-process, so that the box can be smoothly moved from the pre-process to the post-process. Can be sent to.

( 9 )
The support member is rotated while holding one end of at least one of the four supports that respectively support the vicinity of the crease of the side wall from the outside, and the horizontal direction of the box. And a rotating device that enables at least one of loading and discharging along.

  In this case, the four folds supporting the folds in the side wall from the outside can be securely held in the vicinity of the folds, and the rotating device that rotates while holding one end of at least one of the supports. It is possible to reliably carry in or discharge the box without obstructing at least one of the carrying in and the discharging of the box.

( 10 )
The support member has four supports that respectively support the vicinity of the crease of the box from four directions, and at least one of the four supports is horizontally moved to carry the box along the horizontal direction. And a telescopic device that enables at least one of discharge.

  In this case, the vicinity of the crease can be reliably held by the four supports that respectively support the vicinity of the crease on the side wall from the outside, and the box is carried in and out by the telescopic device that horizontally moves at least one of the supports. It is possible to reliably carry in or discharge the box without obstructing.

  According to the present invention, the lid of the box can be reliably opened to the outside. Therefore, it is possible to reliably store the product or the like in the box in the subsequent process. Even if the box is recycled or new, the support member reliably supports the vicinity of the fold from the outside of the side wall, so that each of the four pieces serving as the lid of the box can be easily attached to the outside of the box. Can be folded.

Schematic perspective view for explaining opening of a cardboard box Schematic perspective view for explaining opening of a cardboard box Schematic perspective view for explaining opening of a cardboard box Schematic external view showing an example of a cardboard box lid opening device according to the present embodiment Schematic block diagram showing an example of the structure of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic diagram for explaining the operation of the lid opening device Schematic perspective view showing another embodiment of the sliding mechanism shown in FIG. Schematic sectional view showing another example of the process of FIG. Schematic diagram showing another example of the support shown in FIGS. Schematic diagram showing another example of the support shown in FIGS. Schematic top view which shows the other example of arrangement | positioning of the support body with respect to the cardboard box shown in FIG. Schematic explanatory diagram for explaining the fold of the piece of the cardboard box

  Embodiments according to the present invention will be described below with reference to the drawings. In the present embodiment, a corrugated cardboard box will be described as an example of the box of the box lid opening device. Although the lid portion of the cardboard box will be described, the present invention is not limited to this, and the present invention can also be applied to a lid portion of a box made of other paper, a bottom portion of the box, and a bottom portion of the cardboard box.

(One embodiment)
First, the lid opening of the box according to the present invention will be described with reference to the drawings. 1 to 3 are schematic perspective views for explaining the opening of the cardboard box 900. FIG.

  As shown in FIG. 1, the cardboard box 900 is formed of side walls 905, 906, 907, 908, a piece 901 is formed on the side wall 905, a piece 902 is formed on the side wall 906, and A piece 903 is formed on the side wall 908, and a piece 904 is formed on the side wall 908.

  The piece 901 is located inside the side wall 905 (the side of the region surrounded by the side walls 905 ˜, 908), the piece 902 is located inside the side wall 906, the piece 903 is located inside the side wall 907, and the piece 904 Is located inside the side wall 908.

  Thus, the cardboard box 900 shown in FIG. 1 is in a state where the lid is closed. Hereinafter, in the present embodiment, a state in which the pieces 901 to 904 are folded inward is referred to as a state in which the lid is closed or inward. 2 shows a state in which a piece 901, a piece 902, a piece 903, and a piece 904 are partially overlapped with each other in order. Similarly, the state of the cardboard box 900 in FIG. 2 is referred to as a state in which the lid is closed like a bowl.

  On the other hand, as shown in FIG. 3, the piece 901 of the cardboard box 900 is located outside the side wall 905 (on the side of the region not surrounded by the side walls 905 ˜, 908), and the piece 902 is located outside the side wall 906. , The piece 903 is located outside the side wall 907, and the piece 904 is located outside the side wall 908. Thus, the cardboard box 900 shown in FIG. 3 is in a state where the lid is opened. That is, the state of the cardboard box 900 in FIG. 3 is referred to as a state in which the lid is opened and a state in which it is located outside.

  As described above, the lid opening device for the cardboard box 900 according to the present embodiment changes from the state where the lid of the cardboard box 900 shown in FIG. 1 or 2 is closed to the state where the lid is opened as shown in FIG. It is a device to do.

  FIG. 4 is a schematic external view showing an example of the lid opening device 100 of the cardboard box 900 according to the present embodiment.

  As shown in FIG. 4, the lid opening device 100 mainly includes a support device 200, a claw driving device 500, and transport mechanisms 601 and 602.

  The support device 200 supports the side walls 905 to the side walls 908 in the vicinity of the folds between the side walls 905 to the side walls 908 and the pieces 901 to 904 of the cardboard box 900. The support device 200 includes supports 251, 252, 253, 254, a telescopic device 261 and a motor 262, the support 251 is attached to the telescopic device 261, and the support 252 is attached to the motor 262.

  The claw driving device 500 includes four rod-shaped members 501, 502, 503, and 504 including claw shapes at the tips, opening degree adjusting devices 505 of the rod-shaped members 501, 502, 503, and 504, and a moving device 506.

  As shown in FIG. 4, in the present embodiment, a cardboard box 900 is carried in the direction of arrow X from the previous step by a transport mechanism 601 composed of a number of rotating rollers, and the cardboard box 900 is transported by a transport mechanism 602 composed of a number of rotating rollers. The box 900 is discharged in the direction of arrow Y with respect to the subsequent process.

  Subsequently, FIG. 5 is a schematic block diagram illustrating an example of the structure of the lid opening device 100.

  In the lid opening device 100, the control unit 301, the recording unit 302, the vertical direction adjustment unit 305, the opening adjustment drive unit 306, the first transport drive unit 310, the second transport drive unit 320, the rotation support moving unit 330, and expansion / contraction A support moving part 331 is included.

  Based on the instructions recorded in the recording unit 302, the control unit 301 includes a vertical direction adjustment unit 305, an opening adjustment driving unit 306, a first conveyance driving unit 310, a second conveyance driving unit 320, and a rotation support body moving unit 330. And an instruction | indication is given to the expansion-contraction support body moving part 331.

  The vertical direction adjustment unit 305 drives the operation of the moving device 506 of the claw driving device 500 according to an instruction from the control unit 301, and the opening adjustment driving unit 306 is operated according to an instruction from the control unit 301. The operation of 505 is driven. The first transport driving unit 310 drives the rotation roller of the transport mechanism 601 according to an instruction from the control unit 301, and the second transport drive unit 320 drives the rotation roller of the transport mechanism 602 according to an instruction from the control unit 301.

  The rotation support body moving unit 330 drives the operation of the motor 262 according to an instruction from the control unit 301, and the expansion / contraction support body movement unit 331 drives the operation of the expansion / contraction device 261 according to an instruction from the control unit 301.

  Next, the operation of the lid opening device 100 will be described with reference to FIGS. 6 to 14 are schematic diagrams for explaining the operation of the lid opening device 100.

  As shown in FIG. 6, when the cardboard box 900 is carried into the transport mechanism 602 from the transport mechanism 601, the vicinity of the fold of the side wall 907 of the cardboard box 900 contacts the support 253, and the vicinity of the fold of the side wall 908 is the support 254. To touch. Here, the support body 253 and the support body 254 are in a fixed state.

  Further, the motor 262 rotates in the direction of the arrow P1, the support body 252 is brought into contact with the vicinity of the fold of the side wall 906, and the expansion / contraction device 261 expands and contracts the support body 251 in the direction of arrow -Y1, thereby 905 is in contact with the vicinity of the fold.

  That is, the lid opening device 100 is provided so that the cardboard box 900 can be loaded in the direction of arrow X in FIG. 4, and the support body 251 that obstructs the loading direction after the cardboard box 900 is loaded is provided in the cardboard box 900. The vicinity of the crease of the side wall 905 is supported.

  Further, as shown in the schematic diagram of the plane in FIG. 7, the side walls 905 to 908 of the cardboard box 900 are supported by the support members 251, 252, 253, and 254.

  Subsequently, as shown in FIG. 6, the four rod-like members 501, 502, 503, and 504 of the claw driving device 500 are moved in the direction of the arrow V1 (vertically downward) by the moving device 506 of the claw driving device 500. To be moved into a space formed by each end face of the piece 904.

  Next, as shown in FIG. 8, the opening of the four rod-shaped members 501, 502, 503, and 504 is opened by the opening adjusting device 505 of the claw driving device 500, and the four of the claw driving device 500 are moved by the moving device 506. Rod-shaped members 501, 502, 503, and 504 are moved in the direction of arrow -V1 (vertically upward). In this case, the claws of the four rod-shaped members 501, 502, 503, and 504 hook the pieces 901 to 904 of the cardboard box 900 so that the postures of the pieces 901 to 904 approach the vertical posture from the inside. Moved.

  Further, as shown in FIG. 9, the claws of the four rod-like members 501, 502, 503 and 504 hook the pieces 901 to 904 and the vicinity of the piece 904 of the cardboard box 900, and the pieces 901 to 904. Support bodies 251 to 254 are disposed on the extended line of the hook position. Details of this arrangement will be described.

  Specifically, as shown in FIG. 10, the corrugated cardboard box 900 is formed of the honeycomb structure HM, and thus is easily deformed along the vertical direction.

  For example, when the rod-shaped member 501 applies a force to the point P501 with respect to the piece 901, the end of the piece 901 is deformed as indicated by a broken line 901M. In this case, the side wall 905 of the cardboard box 900 is also deformed as indicated by a broken line 906M. If the side wall 905 and the piece 901 are deformed so as to swell like the broken line 905M and the broken line 901M, it is difficult to fold the piece 901 outward (outside the region surrounded by the side walls 905 to 908). .

  Therefore, in the cardboard box lid opening device 100 according to the present invention, a force is applied from the outside to the inside by the support body 251 to the point P905 in the side wall 905 in the vicinity of the fold between the piece 901 and the side wall 905. The force which deform | transforms outside by the body 251 is prevented.

  In addition, although said point P501 is described so that it may be located in the center part of the piece 901, it is not limited to this, What is necessary is just the position where the piece 901 can be bent. The relationship between the point P501 and the point P905 is best on a vertical line. However, the point P905 is provided in two places, and each point of an isosceles triangle having the point P501 as a vertex is configured. Good.

  Subsequently, as shown in FIG. 11, the four rod-shaped members 501, 502, 502, and the like are supported by the moving device 506 while supporting the inside of the pieces 901 to 904 by the four rod-shaped members 501, 502, 503, and 504. 503 and 504 are moved in the direction of the arrow V1 (vertically downward). Accordingly, the pieces 901 to 904 are deformed so as to be surely positioned outside the cardboard box 900.

  Next, as shown in FIG. 12 and FIG. 13, the four rod-like members 501, 502, 503, and 504 are moved to arrows − by the moving device 506 so that the pieces 901 to 904 are in a state along the horizontal plane. Slightly moved in the direction of V1 (vertically upward). Note that the opening of the four rod-shaped members 501, 502, 503, and 504 is increased by the opening adjustment device 505 without using the moving device 506 so that the pieces 901 to 904 are in a state along the horizontal plane. It may be.

  In this case, folding back is considered by folding the pieces 901 to 904 to a horizontal plane or more. As shown in FIG. 13, the support 252 is rotated in the direction of the arrow −P1 by the motor 262, and the cardboard box 900 is discharged in the direction of the arrow Y by the transport mechanism 602.

  In this case, as shown in FIG. 14, the sliding mechanism of the four rod-shaped members 501, 502, 503, and 504 is a piece so that the pieces 901 to 904 of the cardboard box 900 do not return to the vertical (standing) posture. 901, ..., the inside of the piece 904 is continuously pushed. For example, a sliding mechanism 502 a is provided in the vicinity of the claw portion of the rod-shaped member 502. This sliding mechanism 502a has a shape having a flat surface, and has an effect of sending the piece 902 and the piece 904 to a subsequent process in a state along the horizontal plane. Although not shown, the rod-like members 501, 503, and 504 are also provided with a similar sliding mechanism.

  Next, with reference to FIG. 15 to FIG. 20, the steps until the pieces 901 to 904 are positioned from the inside to the outside of the cardboard box 900 by the four rod-like members 501, 502, 503 and 504 will be described in detail. Do. 15 to 20, the state of the pieces 902 and 904 will be described, but the pieces 901 and 903 are also located from the inside to the outside of the cardboard box 900 in the same state.

  15 to 20 are schematic process diagrams showing a cross section of the cardboard box 900.

  First, as shown in FIG. 15, in a state where the lid of the cardboard box 900 is closed, the rod-like members 502 and 504 are moved in the direction of the arrow V1 in the space between the pieces 902 and 904. In this case, the support body 252 is disposed near the fold line between the side wall 906 and the piece 902 in the side wall 906, and the support body 254 is disposed near the fold line between the side wall 908 and the piece 904 in the side wall 908.

  Next, as shown in FIG. 16, the rod-like members 502 and 504 moved into the space between the piece 902 and the piece 904 are opened by the opening adjustment device 505 in the direction of the arrow R1.

  Then, as shown in FIG. 17, the bar-shaped members 502 and 504 are further opened in the direction of the arrow R1 by the opening degree adjusting device 505, and are moved in the direction of the arrow -V1 (vertically upward) by the moving device 506. Thereby, the pieces 902 and 904 start to stand up from the closed state.

  Subsequently, as shown in FIG. 18, the bar-shaped members 502 and 504 are further opened in the direction of the arrow R1 by the opening degree adjusting device 505, and are moved in the direction of the arrow −V1 (vertically upward) by the moving device 506. Accordingly, the pieces 902 and 904 are in a vertical state. In this case, the moving device 506 stops moving in the direction of arrow -V1 (vertically upward).

  Next, as shown in FIG. 19, the bar-shaped members 502 and 504 are further opened in the direction of the arrow R1 by the opening adjustment device 505, so that the pieces 902 and 904 start to be folded outward from the vertical (standing) state. In this case, the rod-like members 502 and 504 are moved in the direction of the arrow V1 (vertically downward) by the moving device 506, and the inner surfaces of the pieces 902 and 904 start to be pressed downward.

  Further, as shown in FIG. 19, since the support members 252 and 254 prevent the side walls 906 and 908 from being deformed, the pieces 902 and 904 can be easily bent so as to be positioned from the inside to the outside.

  Finally, as shown in FIG. 20, the opening degree adjusting device 505 stops the opening operation in the direction of arrow R1, and the rod members 502 and 504 are moved in the direction of arrow V1 (vertically downward) by the moving device 506. To do. Accordingly, the pieces 902 and 904 are in a horizontal state.

(Other examples)
Next, FIG. 21 is a schematic perspective view showing another example of the sliding mechanism 502a shown in FIG.

  As shown in FIG. 21, a sliding mechanism 502b made of a roller may be provided in the vicinity of the claw portions of the rod-like members 501,. Although not shown, a sliding mechanism made up of rollers is provided in the vicinity of the claw portions of the rod-like members 501, 503, and 504. In this case, without damaging the pieces 901 to 904, the pieces 901 to 904 can be maintained in a horizontal state, and the cardboard box 900 with the lid opened can be discharged to a subsequent process.

(Still another embodiment)
Next, FIG. 22 is a schematic cross-sectional view showing another example of the process of FIG.

  As shown in FIG. 22, even when the opening degree adjusting device 505 continues the opening operation in the direction of the arrow R1, the rod-shaped members 502 and 504 are moved in the direction of the arrow V1 (vertically downward) by the moving device 506. Good. In this case, since the end side (tip side) of the pieces 902 and 904 can be pushed vertically downward, the pieces 902 and 904 can be bent with a small force.

(Still other examples)
Next, FIGS. 23 and 24 are schematic views showing other examples of the supports 251 to 254 shown in FIGS.

  As shown in FIG. 23 and FIG. 24, the supports 251 to 254 may be a support 251a having a tapered shape or a support 252b having three protrusions. It may be a support body 253c having a protruding portion, or a support body 254d having an elliptical portion. The supports 251a, 252b, 253c, and 254d have different shapes. However, the present invention is not limited to this, and all the supports may have a tapered shape, and one support is provided. May be provided, all the supports may have an oval part, and all the supports may have any other protruding shape.

  In this case, as shown in FIG. 24, since the side walls 905,..., 908 of the cardboard box 900 are pressed inward, it becomes easy to position the pieces 901,. That is, the deformation of the side wall 905 shown in FIG. 10 (broken line 905M) can be positively prevented, the pieces 901 to 904 can be easily bent, and the cardboard box 900 can be securely held.

(Still other examples)
FIG. 25 is a schematic plan view showing another example of the arrangement of the supports 251, 252, 253, 254 with respect to the cardboard box 900 shown in FIG.

  As shown in FIG. 25, the supports 251, 252, 253, and 254 may be disposed without providing gaps with the side walls 905 to 908 of the cardboard box 900. In this case, deformation of the side walls 905 to 908 of the cardboard box 900 (for example, the broken line 905M in FIG. 10) can be positively prevented and the cardboard box 900 can be reliably held.

(Still other examples)
FIG. 26 is a schematic explanatory diagram for explaining a crease.

  As shown in FIG. 26, the piece 904 is in an upright posture in the cardboard box 900. In the new cardboard box 900, a fold line D 904 is provided on the inner side between the piece 904 and the side wall 908. Similar to the fold line D904, although not shown, a fold line D901 is provided inside the piece 901 and the side wall 905, a fold line D902 is provided inside the piece 902 and the side wall 906, and the piece 903 and the side wall 907. A fold line D903 is provided on the inner side.

  Therefore, it is easy to bend the piece 904 in the direction of arrow R3 (inside), but it is difficult to bend it in the direction of arrow R4 (outside). Therefore, in the present invention, by providing the support bodies 251 to 254 and the support body 254, the pieces 901 to 904 can be easily bent outward.

  Further, as shown in FIG. 26, instead of the claw driving device 500, the suction device VC01 may be provided on each of the pieces 901 to 904 and bent in the direction (outside) of the arrow R4. It may be provided on each of the pieces 901 to 904 and bent in the direction of arrow R4 (outside).

  In addition, as long as the structural space of the lid opening device 100 can be made large, the support members 251 to 254 may be moved from the vertically downward direction to the vertically upward direction. In this case, the extension device 261 is not used. Further, the support 251 can be vertically protruded from between the rotation rollers of the transport mechanism 602, and the motor 262 is disposed in a state rotated by 90 degrees, so that one end side of the support 252 (mostly You may comprise so that the edge part which moves may be rotated from a vertically downward direction to a horizontal direction.

  As described above, according to the lid opening device 100, the lid portions (pieces 901 to 904) of the cardboard box 900 can be reliably opened to the outside. Accordingly, in the subsequent process, the product or the like can be reliably stored in the cardboard box 900.

  Further, even if the cardboard box 900 is recycled or new, the supports 251 to 254 have the folds D904 between the side walls 905 and to the side walls 908 and the pieces 901 to 904. Since the vicinity is reliably supported from the outside of the side wall 905 of the cardboard box 900 and the outside of the side wall 908, each of the four pieces 901 to 904 serving as the lid of the cardboard box 900 can be easily folded to the outside of the cardboard box 900. it can.

  In the present invention, the corrugated cardboard box 900 corresponds to a box, the side walls 905, 906, 907, and 908 correspond to side walls, and the pieces 901, 902, 903, and 904 correspond to four pieces each serving as a lid. The outside from the region surrounded by 906, 907, and 908 corresponds to the inside to the outside of the box, the lid opening device 100 corresponds to the lid opening device, and the supports 251, 252, 253, and 254 correspond to the supporting members. The claw driving device 500, the suction device VC01, and the hooking device FUCK1 correspond to the flap opening means, the suction device VC01 corresponds to the suction device, and the four rod members 501, 502, 503, and 504 are the four rod members. The opening adjustment device 505 corresponds to the opening drive unit, the moving device 506 corresponds to the moving unit, the control unit 301 corresponds to the control unit, and the direction of the arrow R1 is the opening of the four rod-shaped members. Every time The sliding mechanism 502a, 502b corresponds to the sliding mechanism, the direction of the arrow X corresponds to the loading direction, the direction of the arrow Y corresponds to the discharging direction, the motor 262 corresponds to the rotating device, The expansion device 261 corresponds to the expansion device.

  A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

100 Lid opening device 100
200 Supporting devices 251, 252, 253, 254 Supporting body 261 Extending device 262 Motor 301 Control unit 302 Recording unit 500 Claw driving device 501, 502, 503, 504 Bar-shaped member 505 Opening adjusting device 506 Moving device 601, 602 Conveying mechanism 900 Cardboard boxes 901, 902, 903, 904 pieces 905, 906, 907, 908 side walls

Claims (10)

A box lid opening device for positioning four pieces each serving as a lid of a box provided extending from each side wall of a box having a side wall on the outside of the box,
A supporting member for supporting the vicinity of the fold line inside the box between the four pieces and the side wall from the outside of the side wall;
Flap opening means for moving each of the four pieces from the upright posture of the box to the outside while locking the four pieces of the box;
Only including,
The flap opening means includes
Four rod-shaped members each having a claw corresponding to each of the four pieces serving as a lid of the box;
An opening drive unit for adjusting the opening of the four rod-shaped members;
A moving unit for moving the opening driving unit and the four rod-shaped members in a vertical vertical direction;
A device for opening the lid of the box. The flap opening means further includes a control unit,
In the state in which each of the four pieces serving as the lid of the box is folded inward, the control unit is vertically downward so as to insert the four rod-like members into the space formed between the four pieces. Instruct the moving part to move,
When the four rod-shaped members are inserted into the space by the moving unit, the opening driving unit is instructed to increase the opening of the four rod-shaped members,
The moving unit is instructed to move the four bar-shaped members vertically upward when each of the four bar-shaped members is locked by the four bar-shaped members. Item 1. A box lid opening device according to Item 1 . When the control unit moves each of the four pieces of the lid of the box from the upright posture to the outside by the four rod-shaped members, the control unit further sets the opening of the four rod-shaped members to the opening adjustment unit. 3. The box lid opening device according to claim 2 , wherein after the opening, the moving unit is controlled to move the four rod-like members vertically downward. When the control unit moves the four pieces of the box from the inner side of the box to the outer side through an upright posture by the four bar-shaped members, the opening degree adjusting unit further includes the four bar-like members. The box lid opening device according to claim 2 , wherein the opening degree of the member is increased and the moving unit is controlled to move the four rod-like members vertically downward. The four rod-like members, of the box according to any one of claims 1 to 4, characterized in that it comprises a sliding mechanism for smoothly holding the inner surface of each four pieces to the pawl Lid opening device. The box cover opening device according to any one of claims 1 to 5 , wherein the support member presses the vicinity of each of the four folds from the outside of the side wall of the box. The support member according to any one of claims 1 to 6, characterized in that to support the vicinity of the fold of the vertical line direction of each four pieces to be engaged by the four rod members Box lid opening device. The said support member is provided so that a movement is possible so that the carrying-in direction in which the said box is carried in from the front process, and the discharge | emission direction in which the said box is discharged | emitted to a back process may not be inhibited. box lid opening device according to any one of 7. The support member is
Four supports for supporting the vicinity of the fold of the side wall from the outside,
A rotation device that rotates while holding one end of at least one of the four supports and enables the box to be carried in and out along the horizontal direction. The box lid opening device according to any one of claims 1 to 8 , wherein the device is a box lid opening device. The support member is
Four supports for supporting the vicinity of the fold of the side wall from the outside,
A telescopic device that horizontally moves at least one of the four supports and enables the box to be discharged at least one of loading and unloading along the horizontal direction. The box lid opening device according to any one of claims 1 to 9 .