JP2010155650A - Apparatus for assembling cardboard box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for assembling a cardboard box which is capable of assembling a reusable corrugated cardboard box by means of a simple structure and capable of assembling the corrugated cardboard box at low cost. <P>SOLUTION: In the apparatus for assembling a cardboard box 100, an area AR1 of each of four top portion flaps 901, 902, 903, and 904 of a corrugated cardboard box 900 is locked by a locking member 300 having a coil spring 320, and an area AR3 of each of the four top portion flaps 901, 902, 903, and 904 of the corrugated cardboard box 900 is pushed down by a curved member 400. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cardboard box assembling apparatus used when assembling a box shape of a cardboard box.

  Conventionally, a cardboard box is used for packing and transporting goods. Corrugated cardboard boxes are effective in absorbing impacts and preventing dirt on packed products, and are used in many distribution channels.

  In recent years, recycling activities have been active for the effective use of global resources. Also in the corrugated cardboard box, four pieces at the end of the corrugated cardboard box are folded and transported in a bowl shape so that the cardboard box can be recycled. It is carried out by folding the four pieces at the end of the box in a bowl shape.

  Patent Document 1 discloses a cardboard box folding device.

  In the cardboard box folding device described in Patent Document 1, the cardboard box is transported to a predetermined position by a transport device that transports the cardboard box to a predetermined position, and the first small flap and the second large flap are simultaneously driven. Is done. The first small flap pushes the corner of one end of the piece that becomes the bottom of the cardboard box, and the second large flap pushes the corner of one end of the other piece that becomes the bottom of the cardboard box. By sucking the other corner of one piece and the other piece with a suction machine, a corrugated box-like shape is formed.

US Pat. No. 5,352,178

  However, the corrugated cardboard box folding apparatus described in Patent Document 1 is not suitable for corrugated cardboard formation at the time of recycling because one piece of the corrugated cardboard box is held by a vacuum suction device.

  Generally, when the cardboard box is recycled, since the cardboard box is once used and transported, dirt is attached to the surface of the cardboard box. Therefore, adsorbing the surface of the cardboard box with a vacuum suction device increases the burden on the vacuum suction device and increases the running cost.

  An object of the present invention is to provide a cardboard box assembling apparatus capable of assembling a cardboard box with a simple configuration and a low cost.

(1)
A corrugated cardboard box assembly apparatus according to the present invention is a corrugated cardboard box assembly apparatus in which four pieces at the upper and lower end portions of the cardboard box are overlapped with each other to form a bowl-shaped portion. A locking member that locks each one end of the cardboard box with an elastic member, and a flap plate member that pushes down each other end of each of the four upper and lower ends of the cardboard box. When the other end side of each of the four pieces starts to be pushed down, the one end side of the four pieces at the upper and lower end portions of the cardboard is held by the elastic force of the elastic member of the locking member, and the cardboard box 4 When the other end side of the piece is continuously pushed down and the elastic force of the elastic member of the locking member is exceeded, each one end side of the four pieces of cardboard is opened.

  In the cardboard box assembly apparatus according to the present invention, each one end side of the four pieces of the cardboard box is locked by the locking member having the elastic member, and each other end side of the four pieces of the cardboard box is pushed down by the flap plate member.

In this case, when the flap plate member starts to push down the other end sides of the four pieces of the cardboard box, the one end side of the four pieces of the cardboard box is held by the elastic force of the elastic member of the locking member, and the flap plate member When the other end side of the four pieces of the cardboard box is continuously pushed down and the elastic force of the elastic member of the locking member is exceeded, each one end side of the four pieces of the cardboard box is opened.
As a result, the four pieces of the cardboard box can be overlapped with each other without using a vacuum suction machine to form a bowl-shaped portion. As a result, even if dirt is adhered to the surface of the recycled cardboard box, each end of the four pieces of the cardboard box can be reliably held.

(2)
The locking member is preferably made of a leaf spring.

  In this case, since the locking member is made of a leaf spring, the running cost is reduced as compared with the case where a vacuum suction machine is used, and dirt is attached to the surface of the recycled cardboard box. However, it is possible to reliably hold the respective one end portions of the four pieces serving as the lid portion of the cardboard box.

(3)
It is preferable that the locking member includes a holding member that holds one end side of one piece serving as a lid portion of the cardboard box, and an elastic body that gives an elastic force to the holding member.

  In this case, since the locking member includes the holding member and the elastic body, when the elastic force of the elastic body is exceeded, the holding member opens each one end portion of the four pieces that become the lid portion of the cardboard box. As a result, the running cost is reduced as compared with the case where a vacuum suction machine is used, and even if the surface of the recycled cardboard box is contaminated, it becomes a cover part of the cardboard box. Each one end of the piece can be securely held.

External view showing an example of a cardboard box assembly apparatus according to the first embodiment Schematic diagram for explaining cardboard boxes Schematic diagram for explaining cardboard boxes Schematic diagram for explaining cardboard boxes Schematic diagram for explaining cardboard boxes The figure which shows the state which assumes the piece of the cardboard box for explanation The figure which shows the state which assumes the piece of the cardboard box for explanation Schematic external view for explaining the operation of the lid upright part Typical schematic for demonstrating an example of operation | movement of the latching | locking part of a latching | locking part Typical schematic for demonstrating an example of operation | movement of the latching | locking part of a latching | locking part Typical schematic for demonstrating an example of operation | movement of the latching | locking part of a latching | locking part Schematic sectional view for explaining the operation of the flat plate Schematic sectional view for explaining the operation of the flat plate Schematic sectional view for explaining the operation of the flat plate Schematic sectional view for explaining the operation of the flat plate Schematic sectional view for explaining the operation of the flat plate Schematic sectional view for explaining the operation of the flat plate Schematic schematic diagram for explaining an example of the operation of the leaf spring part Schematic schematic diagram for explaining an example of the operation of the leaf spring part Schematic schematic diagram for explaining an example of the operation of the leaf spring part

  Embodiments according to the present invention will be described below with reference to the drawings. In the present embodiment, the lid portion of the cardboard box will be described. However, the present invention is not limited to this and can be applied to the bottom portion of the cardboard box.

(First embodiment)
FIG. 1 is an external view showing an example of a cardboard box assembly apparatus 100 according to the first embodiment.

  As shown in FIG. 1, the cardboard box assembly apparatus 100 mainly includes a lid upright portion 200, a locking portion 300, and a bending portion 400. FIG. 1 shows a cardboard box 900.

As shown in FIG. 1, the lid upright portion 200 includes lid upright drive portions 201, 202, 203, 204 and lid upright bars 211, 212, 213, 214 corresponding to the four surfaces of the cardboard box 900.
The locking portion 300 includes locking portions 301, 302, 303, and 304 corresponding to the four surfaces of the cardboard box 900, respectively. Further, the bending portion 400 includes flat plates 401, 402, 403, 404 and flat plate driving members 411, 412, 413, 414 corresponding to the four surfaces of the cardboard box 900.

  Next, the bowl-shaped lid of the cardboard box 900 will be described with reference to FIGS. 2 to 5 are schematic diagrams for explaining the cardboard box 900. FIG.

  First, as shown in FIG. 2, the corrugated cardboard box 900 has four pieces 901, 902, 903, and 904 to be the lids opened to the outside of the cardboard box 900 and the bottom is assembled. The goods are packed inside the cardboard box 900 by a boxing device (not shown) that is conveyed and provided upstream.

  Subsequently, as shown in FIG. 3, the pieces 901, 902, 903, 904 of the cardboard box 900 start to fall down with each other by the cardboard box assembly apparatus 100 according to the present invention. Then, as shown in FIG. 4, a part of the piece 901 of the cardboard box 900 is overlaid on the piece 904, a part of the piece 902 is overlaid on the piece 901, and a part of the piece 903 is made up of the piece 902. Overlaid on top of each other, part of the piece 904 is overlaid on the piece 903. FIG. 5 is a plan view of the corrugated cardboard box 900 of FIG. 4 viewed from vertically above, and the lid portion of the corrugated cardboard box 900 shown in FIG. 5 is called a bowl-shaped lid.

  The pieces 901 and 903 have the same shape, and the pieces 902 and 904 have the same shape. Here, the pieces 901, 902, 903, and 904 will be described. 6 and 7 are diagrams illustrating a state in which a piece of the cardboard box 900 is assumed for explanation.

  As shown in FIG. 6, each of the pieces 901 and 903 has an area AR1 having a length of about 0 or more and less than (L1) / 3 with respect to the length L1 in the horizontal direction. Assume that an area having a length of 3 or more and less than 2 (L1) / 3 is a region AR2, and an area having a length of about 2 (L1) / 3 or more and L1 or less is a region AR3.

  Similarly, as shown in FIG. 7, the pieces 902 and 904 have an area AR1 having a length of about 0 or more and less than L2 / 3 with respect to the length L2 in the horizontal direction, and a length of about (L2). It is assumed that an area having a length of / 3 or more and less than 2 (L2) / 3 is a region AR2, and an area having a length of about 2 (L2) / 3 or more and L1 or less is a region AR3. These areas AR1, AR2 and AR3 indicate relative positions with respect to the respective pieces, and are used for explaining the cardboard box assembling apparatus 100 according to the present invention. Therefore, the cardboard box assembling apparatus according to the present invention forms the areas AR1, AR2, and AR3, but is not limited to this, and may include only the areas AR1 and AR3, and any other division method. The area may be defined by.

  Next, FIG. 8 is a schematic external view for explaining the operation of the lid upright portion 200.

  As shown in FIG. 8, the lid erection drive units 201, 202, 203, and 204 of the lid erection unit 200 rotate the lid erection rods 211, 212, 213, and 214 in the direction of the arrow R1. Accordingly, the state in which the lid upright bars 211, 212, 213, and 214 are opened to the outside of the pieces 901, 902, 903, and 904 shown in FIG. 2 is changed to the pieces 901, 902, 903, and 904 shown in FIG. Transition to the standing state.

  Next, the locking portion 300 will be described using FIGS. 9 to 11. In FIGS. 9 to 11, description will be given by taking the locking portion 301 of the locking portion 300 as an example. 9 to 11 are schematic schematic views for explaining an example of the operation of the locking portion 301 of the locking portion 300. FIG.

  As shown in FIG. 9, the locking portion 301 includes a holding portion 310, a winding spring 320, and a housing 330. A holding portion 310 having a triangular prism shape is pivotally supported by a shaft 311 inside the housing 330, and a winding spring 320 is provided between the holding portion 310 and the housing 330.

  Further, as shown in FIG. 9, the holding portion 310 holds the end portion of the area AR <b> 1 of the piece 901 of the cardboard box 900. Subsequently, as shown in FIG. 10, the area AR <b> 3 of the piece 901 starts to be pushed down inside the cardboard box 900 by the bending portion 400 described later. At the same time, the area AR3 of the piece 904 adjacent to the piece 901 starts to be pushed down in the direction of the arrow Y1.

  In this case, the holding part 310 is not rotated by the elastic force of the winding spring 320. Finally, as shown in FIG. 11, when the area AR3 of the piece 901 is further pushed by the bending portion 400 described later, a force is applied to the end of the area AR1 of the piece 901 and exceeds the elastic force of the winding spring 320. In this case, the holding unit 310 rotates about the shaft 311 in the direction of the arrow R2 with respect to the housing 330.

  Then, when the holding unit 310 rotates in the direction of the arrow R2, the area AR3 of the piece 904 is arranged below the area AR1 of the piece 901. Since this locking portion 300 is individually arranged not only on the piece 901 but also on the piece 902, piece 903, and piece 904, the region AR3 of the piece adjacent to the region AR1 is arranged below. It becomes.

  12 to 17 are schematic cross-sectional views for explaining the operation of the flat plate 400.

  First, as shown in FIG. 12, the flat plate driving member 411 is moved, and the flat plate 401 is brought into contact with the outside of the piece 901. Next, as shown in FIG. 13, the flat plate driving member 411 rotates, and the flat plate 401 rotates in the direction of the arrow R4. Thereby, the piece 901 starts to be pushed down inside the cardboard box 900. Next, as shown in FIG. 14, the flat plate driving member 411 is further rotated, and the flat plate 401 is rotated in the direction of the arrow R4. Thereby, the piece 901 is continuously pushed down inside the cardboard box 900.

  Next, as shown in FIG. 15, the piece 902 is tilted in the direction of the arrow Y1. In this case, the flat plate 401 is sandwiched between the piece 902 and the piece 901. Therefore, as shown in FIG. 16, the flat plate driving member 411 moves horizontally in the direction of the arrow Y3. Thereby, the flat plate 401 is extracted from between the piece 902 and the piece 901. Further, as shown in FIG. 17 instead of FIG. 16, the flat plate driving member 411 may rotate the flat plate 401 about the vertical axis. In this case, the flat plate 401 is extracted from between the piece 902 and the piece 901.

  As described above, the bowl-shaped lid can be reliably assembled by the pieces 901, 902, 903, and 904 of the cardboard box 900.

(Second Embodiment)
Next, a cardboard box assembly apparatus according to a second embodiment will be described. In the cardboard box assembly apparatus according to the second embodiment, a leaf spring portion 300 a is provided instead of the locking portion 300.

The leaf spring portion 300a will be described with reference to FIGS. In FIG. 18 to FIG. 20, the leaf spring portion 301 a of the leaf spring portion 300 a will be described as an example. 18 to 20 are schematic schematic views for explaining an example of the operation of the leaf spring portion 301a of the leaf spring portion 300a.

  As shown in FIG. 18, the leaf spring portion 301 a includes a leaf spring portion 340 and a housing 330. The leaf spring portion 340 is fixed to the housing 330, and the leaf spring portion 340 is provided to extend vertically downward.

  As shown in FIG. 18, the end of the region AR1 of the piece 901 of the cardboard box 900 is held by the tip of the leaf spring portion 340. Subsequently, as shown in FIG. 19, an area AR <b> 3 of the piece 901 starts to be pushed down inside the cardboard box 900 by a protruding bar member 450 and a protruding bar driving device 460 described later. At the same time, the area AR3 of the piece 904 adjacent to the piece 901 starts to be pushed down in the direction of the arrow Y1.

  In this case, the distal end side of the leaf spring portion 340 is pushed, and the leaf spring portion 340 starts to bend in the direction of the arrow R3 as a whole. Finally, as shown in FIG. 20, when the area AR3 of the piece 901 is further pushed by the protruding bar member 450 and the protruding bar driving device 460 described later, force is applied to the end of the area AR1 of the piece 901, The leaf spring portion 340 is curved in the direction of the arrow R3 as a whole, and the distal end portion of the leaf spring portion 340 opens the end portion of the region AR1 of the piece 901.

  Then, when the tip of the leaf spring portion 340 opens the end of the area AR1 of the piece 901, the area AR3 of the piece 904 is arranged below the area AR1 of the piece 901. Since the leaf spring portion 300a and the piece 901 as well as the piece 902, the piece 903, and the piece 904 are individually arranged, a piece area AR3 adjacent to the area AR1 is arranged on the lower side, respectively. Become.

  As described above, in the cardboard box assembly apparatus 100 according to the present embodiment, when the area AR3 of the pieces 901, 902, 903, and 904 of the cardboard box 900 starts to be pushed down by the bending portion 400, The four pieces of each area AR <b> 1 serving as a lid of the cardboard box 900 are held by the elastic force of the winding spring 320. When the curved portion 400 continues to push down the areas AR3 of the pieces 901, 902, 903, and 904 of the cardboard box 900 and the elastic force of the winding spring 320 of the lock portion 300 is exceeded, the lock portion 300 is Each of the four areas AR1 serving as a lid of 900 is opened. As a result, the lid portions of the corrugated cardboard box 900 can be overlapped with each other without using a vacuum suction machine to form a bowl-shaped lid. As a result, even if dirt is attached to the surface of the recycled cardboard box 900, each end of the pieces 901, 902, 903, and 904 of the cardboard box 900 can be reliably held.

  In the corrugated cardboard box assembly apparatus 100 according to the first embodiment, flat plate driving members 411, 412, 413, and 414 are provided on one end side of the flat plates 401, 402, 403, and 404 to become a lid portion of the cardboard box 900. One piece area AR3 can be pressed.

  In the present invention, the cardboard box 900 corresponds to the cardboard box, corresponds to the pieces 901, 902, and 903, the area AR1 corresponds to each one end side of the four pieces that become the lid of the cardboard box, and the area AR3 corresponds to the cardboard box. The locking portion 300 corresponds to the locking member, the winding spring 320 corresponds to the elastic member, the flat plate 400 corresponds to the flap plate member, and the flat plate 401. 402, 403, 404 and flat plate driving members 411, 412, 413, 414 correspond to flap plate members, the leaf spring portion 300a corresponds to a leaf spring portion, and the holding portion 310 corresponds to a holding member.

  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.

DESCRIPTION OF SYMBOLS 100 Cardboard box assembly apparatus 300 Locking part 300a Leaf spring part 310 Holding part 320 Winding spring 400 Bending part 401, 402, 403, 404 Flat plate 411, 412, 413, 414 Flat plate drive member 450 Projection rod member 460 Projection rod drive device 900 Cardboard boxes 901, 902, 903, 904 pieces AR1, AR2, AR3 area

Claims (3)

A corrugated cardboard box assembly device for forming a bowl-shaped portion by folding and folding each of the four pieces at the upper and lower ends of the cardboard box,
A locking member for locking each one end side of each of the four upper and lower ends of the cardboard box with an elastic member;
A flap plate member that pushes down each other end of each of the four upper and lower ends of the cardboard box,
When the flap plate member starts to push down the other end sides of the four upper and lower end portions of the cardboard box, one end of each of the four upper and lower end portions of the cardboard is caused by the elastic force of the elastic member of the locking member. Hold the side,
When the flap plate member continues to push down the other end side of the four pieces of the cardboard box and the elastic force of the elastic member of the locking member is exceeded, each one end side of the four pieces of the cardboard box is opened. Corrugated cardboard box assembly equipment.   The cardboard box assembly apparatus according to claim 1, wherein the locking member is made of a leaf spring. The locking member is
A holding member for holding one end side of one piece to be a lid of the cardboard box;
The cardboard box assembly apparatus according to claim 1, further comprising: an elastic body that applies an elastic force to the holding member.