JP2006193185A - Box opening device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make the long side size of the body B of a box material A for opening larger than that of a conventional one even when the suction area along the long side of the body of the box material A is short as to a box opening suction device 14. <P>SOLUTION: This box opening device is provided with a hopper device 2 for pushing out a plurality of box materials A which are flatly folded and loaded in a standing condition and a pull out device 13 provided with an opening suction implement 14 which moves freely reciprocally for opening the materials A by sucking with the suction implement 14 the front one side Ba of the body part B of the frontmost box material A loaded on the hopper device 2. A suction implement 22 for folding is provided freely and reciprocally slidable. A folding device 15 is provided for folding a flap using the implement 22 moving frontward while a flap Da connected to the front one side Ba of the body B of the material A is sucked and for moving frontward the implement 22 in the flap folded condition with the implement 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a box opening device that opens a box material by pulling out the box material one by one from a standing box material group in which a plurality of standing box materials are aligned flatly.

Conventionally, as shown in FIGS. 7A and 7B, the box opening device 1 includes a hopper device 2 and a drawer device 3 (Patent Document 1). The hopper device 2 is configured to push out a plurality of box materials A, which are folded in a flat state and stowed up, one by one to the near side. The drawing device 3 includes an opening suction tool 4 that can be moved back and forth and an opening guide tool 5 at a predetermined position, and the right side (longitudinal side) Ba of the body portion B of the box material A in the foremost row loaded on the hopper device 2. The box material A is opened by causing the opening guide 5 to guide the front left side (short side) Bb of the body part B of the box material A while sucking it with the suction tool 4 and pulling it forward.
JP-A-6-64072

  By the way, the box material A has various things in which the longitudinal dimension L and the short dimension W of the trunk | drum B differ so that various packing capacity etc. can be coped with. The box opening device 1 includes a plurality of suction cups 4a and 4a in the suction tool 4 to cope with various types of box materials A having different sizes L and W of the body portion B, and each longitudinal dimension L of the box material A. Accordingly, the dimension F between the suction cups 4a and 4a is adjusted, and the right and left sides of the front right side (longitudinal side) Ba of the trunk B are sucked by the suction cups 4a and 4a and pulled out to the front. Adjustment of the dimension F between the suction cups 4a and 4a needs to be performed every time the dimension L of the box A to be handled changes.

  However, it is bothersome and forgotten to adjust the dimension F between the suction cups 4a and 4a every time the dimension L of the box material A to be handled changes. If this adjustment is forgotten and the dimension F between the suction cups 4a and 4a is kept short, it is applied to the box material A having a long dimension L on the right side (longitudinal side) Ba of the trunk B. When the right side of the front right side (longitudinal side) Ba is sucked and pulled out to the front side, as shown in FIG. 8, the middle of the front right side (longitudinal side) Ba is broken halfway and the box material A cannot be opened. Sometimes. On the contrary, when applied to the box material A with the short dimension L while the dimension F between the suction cups 4a and 4a is long, the illustration is omitted, but the front right side (longitudinal side) Ba and the front left side of the body part B are omitted. (Short side) The suction cups 4a, 4a may be adsorbed across Bb and the box material A may not be opened.

  In order to solve the above problem, the present invention provides a box body that can be opened even when the size of the suction region along the longitudinal side of the box body in the opening suction tool is short. An object of the present invention is to provide a box opening device capable of making the length of the longitudinal side longer than in the prior art.

Even if the size of the suction region along the longitudinal side of the box material in the suction tool for opening is short, the size of the longitudinal side of the box body that can be opened can be made longer than before. In order to achieve this, the means adopted by the present invention is characterized in that a hopper device that pushes out a plurality of boxes stacked in a flat and folded state, and a suction tool for opening are provided so as to be movable forward and backward. In a box opening device provided with a drawer device that opens the box material by drawing the front side of the body of the front row of box materials loaded in the device toward the front while sucking with the suction tool for opening, A folding suction tool is provided so as to be able to advance and retreat, and the flap is folded by a folding suction tool that swings forward while sucking the flap connected to the front side of the body of the front row of box members. Open the folding suction tool in the open state Further comprising a a fold device moves toward the front with suckers is Hirakibako apparatus according to claim.
In the present invention, the flap connected to one side of the front of the box of the front row of box members is folded forward while sucking with the folding suction tool of the folding device, so that the boundary between the trunk and the flap is obtained. The bending of the body part along the longitudinal direction of the formed bent part increases the rigidity of the body part and makes it difficult to bend. Temporarily, the suction region along the longitudinal side of the body part of the box material With a suction tool for opening with a short dimension, the bending stiffness together with the flap even if one side of the box body is sucked near one side and pulled out and a bending external force is applied to the one side One side of the front side of the trunk that has become larger can be pulled out toward the front side without breaking.

In order to make it compact, the means employed by the present invention according to claim 2 is the box opening device according to claim 1, wherein the folding suction tool is swingably attached to the drawer and integrated with each other. .
In the present invention, by integrating the drawer device and the bending suction tool, the advancing / retracting operation tools for advancing and retracting both can be combined into one.

In order to reliably open the box material, the means adopted by the present invention according to claim 3 is provided with a locking portion which is provided so as to be able to advance and retreat, and to the back side of the flap folded by the folding suction tool. 3. An opening according to claim 1 or 2, further comprising a locking device that advances the portion to prevent movement of the flap on the other side of the rear side of the box material in the middle of the opening, and retracts the locking portion after opening the box material. It is a box device.
In the present invention, when the front side of the body part of the box material is sucked with the opening suction tool and pulled out to the front side, the flap on the rear side located on the rear side of the front side of the body part of the box material Even if it tries to move to the near side, it is blocked by the locking part in the forward movement of the locking device.

  The box opening device according to the first aspect of the present invention is an opening suction tool in which the size of the suction region along the longitudinal side of the box portion of the box material is short. Even if the side is sucked and pulled to the front, it can be pulled forward without causing the one side of the box body to be folded halfway, so that the longitudinal side of the box body in the opening suction tool is aligned. Even if the size of the suction area is short, the size of the longitudinal side of the box body that can be opened can be made longer than before, and every time the size of the box material to be handled changes, The frequency of adjusting the dimensions can be reduced or no adjustment is required.

  According to the second aspect of the present invention, the box opening device according to the present invention can be made compact by bringing together the advancing / retreating operation tools for advancing and retreating the drawer device and the folding suction tool.

  In the box opening device according to the third aspect of the present invention, when the front side of the box part of the box member is sucked with the opening suction tool and pulled out to the front side, the flap on the other side of the box part is behind. Therefore, the box material can be surely opened to improve the operating efficiency of the apparatus.

  A box opening device according to the present invention (hereinafter referred to as “the present invention box opening device”) will be described based on the embodiment shown in FIGS. FIG. 1 shows a state before the box material A is opened, and FIG. 2 shows a state where the flap Da of the box material A is bent forward by the folding suction tool 22 during suction. 3 shows a state in which the box material A is being opened by the suction tool 14 for opening during suction, FIG. 4 shows a state in which the box material A is opened, and FIG. FIG. 6 shows a state in the middle of pulling the box material A further forward, and FIG. 6 shows a state in which the suction of the folding suction tool 22 is stopped by pulling the opened box material A to a predetermined front position. It is shown. As shown in FIG. 1, the present box opening device 10 according to the present embodiment includes a hopper device 2, a drawer device 13, and a bending device 15. The box material A is made of corrugated paper or the like.

  As in the prior art, the hopper device 2 is configured to push out a plurality of box materials A folded in a flat state and stood up one by one to the near side, and loaded in a standing state. The receiving unit 16 for receiving a plurality of box materials A, and each time the frontmost box material A is pulled out from the stacked box materials A, the remaining plurality of box materials A are equivalent to one sheet. An extrusion device 17 that pushes out to the near side by a size, and a locking tool 18 that locks the left and right side edges of the body portion B of the box material A in the front row to prevent the box material A from falling to the near side. ing. The locking tool 18 is such that when the front row of box material A is sucked by the drawing device 13 and forcibly pulled out to the near side, the locking between the body portion B of the box material A and the locking claws 18a and 18b is released. Dimensions and shape. The locking claws 18a and 18b may be able to adjust the locking dimension E with the body portion B of the box material A. On the other hand (the left side in this example), the locking claw 18a can be moved and adjusted in accordance with the change in the left and right dimensions of the box material A (the sum of the long dimension L and the short dimension W). In addition, although the illustration of the locking member 18 is omitted, the upper edge of the box material A in the foremost row may be locked to prevent the box material A from falling to the near side.

  The drawing device 13 includes an opening suction tool 14 that can be moved back and forth in the front-rear direction and an opening guide 5 at a predetermined position, and one side of the front side of the trunk portion B of the box material A in the front row loaded on the hopper device 2. (This example is the long side of the box opened on the right side) While sucking Ba with the suction tool 4 and pulling it out toward the front, the opening guide 5 is placed on the other side in front of the trunk portion B of the box material A (this example is The box material A is opened by guiding Bb (short side of the box opened on the left side) Bb. The opening guide 5 is joined to the locking tool 18 so that it can be moved and adjusted in accordance with changes in the left and right dimensions of the box material A (the sum of the long dimension L and the short dimension W). In addition, when providing the latching device 19 mentioned later, the opening guide 5 is also omissible.

  The suction tool 14 for opening of the drawer 13 is provided with a suction box 21 attached to an advancing / retracting operation tool 20 that moves back and forth in a front-rear direction (a direction toward and away from the box A) by an air cylinder (not shown). The box material A is sucked by a plurality of (four in this example) suction cups 28 opened to the rear side of the box 21, and the front side Ba of the body portion B of the sucked box material A is connected to the rear side surface 21 a of the suction box 21. The front one side Ba is held by the rear side surface 21a having a holding area wider than the total suction area of the plurality of suction cups 28. The suction tool for opening 14 can reliably hold the box material A over the entire rear side surface 21a, as compared with the case where suction is performed only by the suction cup 28. The opening suction tool 14 is provided with a control tool (not shown) for the suction cups 28 to repeat the suction state and the non-suction state. In the opening suction tool 14 of this example, the left-right width dimension K of the suction box 21 is set to about half of the maximum dimension on the front side of the body B of the box material A, and the left-right dimension K of the suction area is fixed. Is not adjusted. Note that the opening device 10 of the present invention can use the conventional suction tool 4 for opening (see FIG. 7) without using the suction tool 14 for opening of the present example. In this case, the suction tool 4 for opening is good to fix the dimension F between the suction cups 4a, 4a to about half of the maximum dimension of the front side Ba of the box part A.

  The folding device 15 includes a swingable folding suction tool 22 and a forward / backward operation tool 20 for moving the folding suction tool 22 back and forth in the front-rear direction. The flap Da is bent by the folding suction tool 22 that swings forward while sucking the flap Da connected to the front one side Ba of the front and the folding suction tool 22 together with the opening suction tool 14 in this folded state. It moves to the front. The bending suction tool 22 includes a swing plate 23 that is swingably supported, a swing operation tool 24 that includes an air cylinder that swings the swing plate 23, and one or two attached to the swing plate 23. A plurality of suction cups 25 and a control tool (not shown) for the suction cups 25 to repeat the suction state and the non-suction state are provided. In the folding device 15 of this example, a folding suction tool 22 is swingably attached to the lower surface side of the suction box 21 of the drawer device 13 so as to integrate both 14 and 15, and the opening suction tool 14 is advanced and retracted. The advancing / retreating operation tool 20 for advancing / retreating the both 14 and 15 is integrated into one by moving the advancing / retreating tool 15 to be advanced / retracted by the moving / retreating operation tool 20. The bending suction tool 15 may be configured to be advanced and retracted by an advance / retreat operation tool (not shown) separate from the advance / retreat operation tool 20 and interlocked with the advance / retreat movement of the opening suction tool 14.

  The box material A in the foremost row loaded on the hopper device 2 is folded to the front while sucking the flap Da connected to the one side Ba on the front side of the trunk B with the folding suction tool 15. The bending rigidity is increased with respect to the bending to bend the body portion Ba along the longitudinal direction (left and right direction) of the bent portion V (see FIGS. 2 and 3) formed at the boundary of the flap Da. The part Ba and the flap Da are difficult to bend. As a result, the front side Ba of the body part B having increased bending rigidity together with the flap Da is bent evenly even if a bending external force acts when it is sucked by the opening suction tool 14 and pulled out to the front. (Refer to FIG. 8).

  The present invention box opening device 10 according to the present embodiment includes a locking device 19 formed of an air cylinder or the like as shown in FIG. The locking device 19 is provided with a locking portion 19a so as to be able to advance and retract. The locking device 19 advances the locking portion 19a to the back side (rear side) of the flap Da folded by the folding suction tool 22, The flap Dc on the other rear side (the rear left side in this example) of the box material A is prevented from moving to the near side, and the locking portion 19a is retracted (see FIG. 7) after the box material A is opened, and is in a standby state. It is supposed to be. The locking device 19 is provided with a control tool (not shown) so as to advance and retract the locking portion 19a in conjunction with the operation of the opening suction tool 14 and the bending suction tool 22. As shown in FIG. 2, the timing of advancing the locking portion 19 a is after folding the flap Da forward with the folding suction tool 22 and with the opening suction tool 14 on the front side Ba on the front side of the trunk B. It is before pulling out. Further, as shown in FIG. 6, the timing of retracting the locking portion 19a is after the rear other side flap Dc of the opened box material A that is moved forward by the opening suction tool 14 gets over the locking portion 19a. is there. When the front side Ba of the body part B is pulled out to the front by the opening suction tool 14, the box material A is blocked by the forward locking part 19 a even if the rear side flap Dc is pulled out. The opening is performed reliably and smoothly. When the box opening device 10 of the present invention includes the locking device 19, the opening guide 5 can be omitted, and the entire device can be simplified.

  Next, operation | movement of this invention box opening apparatus 10 based on this Embodiment is demonstrated based on the procedure of opening operation of the box material A. FIG. First, as shown in FIG. 1, a plurality of box materials A that are folded up and flattened are stacked on the receiving portion 16 of the hopper device 2, and the box materials A in the front row are locked to the locking tools 18. At the same time, the box A in the last row can be pushed out by the extrusion device 17. Next, the drawer device 13 and the folding device 15 are moved toward the box material A by operating the advance / retreat operation tool 20, and the opening suction tool 14 of the drawer device 13 is stopped at a position where the box material A in the front row can be pulled out. At the same time, the folding suction tool 22 of the folding device 15 is stopped at a position where the flap Da of the box material A in the front row can be folded.

  Subsequently, as shown in FIG. 2, the swing plate 23 is swung forward by operating the swing operation tool 24 while the suction cups 25, 25 of the bending suction tool 22 of the folding device 15 are in the suction state. Then, the flap Da on the front side of the front row of box material A sucked by the suction cups 25, 25 is folded forward to form a bent portion V at the boundary between the body portion Ba and the flap Da of the box material A. . Further, the locking portion 19a of the locking device 19 is advanced, and the locking portion 19a enters the rear side (rear side) of the folded flap Da.

  Next, as shown in FIGS. 3 and 4, the suction cups 28, 28... Of the opening suction tool 14 of the drawer device 13 and the suction cups 25, 25 of the folding suction tool 22 of the folding device 15 are kept in the suction state. The drawer device 13 and the bending device 15 are moved toward the front side away from the box material A by the operation of the advance / retreat operation tool 20, and are sucked by the suction cups 28, 28. A flap on the front side of the body B of the front row of box material A held on the rear side surface 21a and a flap on the front side of the box material A sucked by suction cups 25, 25 of the bending suction tool 22. Each of Da is pulled out to the front side to open the box material A. Even when the front side Ba of the body portion B, which has increased bending rigidity with the folded flap Da, is in a state where the suction holding by the opening suction tool 14 is biased toward one side at the time of this drawer opening, It is pulled out to the front without making the middle break G (see FIG. 8). In the middle of the opening of the box material A, the flap Dc is brought into contact with the locking portion 19a of the locking device 19 where the advancement is stopped, the movement of the flap Dc to the near side is prevented, and the opening is performed reliably and smoothly. It will be.

  Finally, as shown in FIGS. 5 and 6, the box A in the open state is sucked by the suction cups 28, 28... Of the opening suction tool 14 of the drawing device 13 and the suction cup 25 of the folding suction tool 22 of the folding device 15. 25, the front side of the box material A is further moved forward, and after the flap Dc on the other side of the box material A has passed over the locking portion 19a, the advancement of the box material A is stopped. The suction cups 28, 28,. And the suction by the suction cups 25, 25 of the folding suction tool 22 is stopped, the box material A in the opened state is separated from the drawing device 13 and the folding device 15, and the opening operation is completed. The separated box material A in the opened state is conveyed to the next process for folding and sealing the flap. Since the separated box material A is maintained in a state where the outer flaps Da and Dc in the longitudinal direction are slightly bent outward, the inner flaps Db and Dd that are bent first in the next step are the outer flaps Da. , Dc can be bent smoothly without interfering with Dc.

  As shown in FIG. 3, the present invention box opening device 10 is an opening suction tool 14 having a short suction area along the longitudinal side (the left-right direction in this example) of the body B of the box material A. Even if one side of the front side Ba of the body part B of the material A is sucked and pulled out to the front side, the front side Ba of the body part B of the box material A can be pulled out forward without being folded, Even if the size of the suction region along the longitudinal side of the barrel B of the box material A in the opening suction tool 14 is short, the longitudinal dimension of the trunk B of the box A that can be opened is conventionally set. In comparison with the change in the size of the box material A to be handled, the frequency of adjusting the size between the suction cups 28 and 28 is less frequently or no adjustment is required. Further, the box opening device 10 of the present invention can make the entire device compact by combining the opening / retracting operation tool 20 for moving the opening suction tool 14 and the folding suction tool 22 together. Further, as shown in FIG. 4, when the box opening device 10 of the present invention sucks the front side Ba of the barrel B of the box material A with the suction tool 14 for opening and pulls it forward, the barrel B of the box A Since the flap Dc on the other rear side does not move forward, the box material A can be opened reliably and the operating efficiency of the apparatus can be improved.

In embodiment of this invention box opening apparatus, the state before opening a box material is shown, (A) is a perspective view which shows the whole box opening apparatus of this invention, (B) expanded the principal part. It is a right view. In the same embodiment, it shows a state in which the flap of the box material is folded to the front with the folding suction tool during suction, (A) is a perspective view showing the entire box opening device of the present invention, (B) FIG. In the same embodiment, it shows the state in the middle of opening the box material with the suction tool for opening during suction, (A) is a perspective view showing the entire box opening device of the present invention, (B) It is the right view which expanded the principal part. In the same embodiment, a state in which the box material is opened is shown, (A) is a perspective view showing the entire box opening device of the present invention, (B) is a right side view in which the main part is enlarged. In the embodiment, it is the right view which expanded the principal part of this invention box opening apparatus which shows the state in the middle of pulling out the opened box material further toward this side. In the same embodiment, the opened box material is pulled out to a predetermined front position, and is a right side view showing an enlarged main part of the present invention box opening device in a state where the suction of the folding suction tool is stopped. It is a perspective view which shows the whole conventional box opening apparatus, (A) shows just before opening a box material, (B) shows the state in the middle of opening a box material. It is a perspective view which shows the state which raise | generated the middle break with the conventional box opening apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Present invention box opening apparatus, 13 ... Drawer apparatus, 14 ... Opening suction tool, 15 ... Bending apparatus, 16 ... Loading part, 17 ... Extruding apparatus, 18 ... Locking tool, 18a ... Locking claw, 18b DESCRIPTION OF SYMBOLS ... Locking claw, 19 ... Locking device, 19a ... Locking part, 20 ... Advance / retreat operation tool, 21 ... Suction box, 21a ... Rear side surface, 22 ... Bending suction tool, 23 ... Swing plate, 24 ... Swing Moving operation tool, 25 ... suction cup, 28 ... suction cup, A ... box material, B ... trunk, Ba ... near one side (longitudinal side), Bb ... near the other side (short side), Da ... flap

Claims (3)

A hopper device that pushes out a plurality of boxes stacked in a flat and folded state, and a suction tool for opening are provided so as to be able to move forward and backward, and one side in front of the trunk of the front row of box materials loaded in the hopper device In a box opening device provided with a drawer device that opens the box material by sucking the side with the opening suction tool, a swingable folding suction tool is provided so as to be able to move forward and backward. The flap is folded with a folding suction tool that swings forward while sucking the flap connected to the front side of the box body, and the folding suction tool together with the suction tool for opening is folded in this folded state. A box opening device comprising a folding device that moves to the right. The box opening device according to claim 1, wherein the bending suction tool is swingably attached to the drawer device, and both are integrated. A locking portion is provided so as to be able to advance and retreat, and the locking portion is advanced to the back side of the flap folded by the folding suction tool to prevent the movement of the flap on the other rear side of the box material in the middle of the opening. The box opening device according to claim 1, further comprising a locking device that retracts the locking portion after the box material is opened.

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