JP2002002636A - Method and apparatus for cutting box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for cutting a box wherein the box can be accurately and simply cut open without applying excessive resistance or without large deformation or the like and in addition a structure of the entire apparatus can be simplified, thereby reducing a cost. SOLUTION: In order to cut a periphery of the box W positioned on a carrying section 4, front and rear sides in a direction of carrying the box W are cut, and then right and left sides are cut, whereby a lid F is cut a box body. A cutting section 3 is provided so that it can be raised/lowered with respect to a positioning section. In addition, a support lever 31 is laterally provided on a lift frame 30 of the cutting section 3. A support 32 having a front cutter part 6a and a support 32a having a left cutter part 6c, a right cutter part 6d and a rear cutter part 6b are bridged. The front cutter part 6a is laterally moved to the support 32 to cut the front side of the box W, and the rear cutter part 6b is laterally moved to the support 32a to cut the rear side of the box W. Then the support 32a is moved forward to cut the left and right sides of the box W by the left cutter part 6c and the right cutter part 6d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cutting a box, which cuts a box in which articles are stored and packed into a lid and a box body.

[0002]

2. Description of the Related Art In general, a cubic cardboard box for storing various items such as vegetables, fruits and foods is provided with an inner lid which can be folded and opened to face the upper surface (upper lid) and the lower surface (bottom lid) of the box body. A lid is provided, and both outer lids stacked on the inner lids are closed in a package by closing the lids with appropriate stoppers such as adhesive tapes and fasteners. 2. Description of the Related Art Conventionally, an incision device for mounting such a box body on a transport unit and incising a lid portion with a cutter has been known, for example, of the type disclosed in Japanese Patent Application Laid-Open No. 63-11297.

[0003]

However, the incision device having the structure as disclosed in the above publication cuts the box conveyed by the conveying section at the corners on both sides with left and right cutters and then transfers the box to another conveying section. After changing the direction and changing the direction, the lid is cut open by cutting the corners on the other side with another pair of left and right cutters, so the structure of the device becomes complicated or large In addition, since both sides are simultaneously cut by a cutter while transporting the box, there is a problem that the resistance at the time of cutting easily accompanies the deformation of the box and makes it difficult to perform a precise and precise cutting.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the method for cutting a box according to the present invention is as follows. It is characterized in that the body W is cut at the front and rear sides in the transport direction, and then the left and right sides are cut, so that the lid F is incised in the box body.

[0005] Second, in cutting the left and right sides, the front and rear sides are cut in a state where the front and rear cutters cut the front side and the cutting is stopped in the middle. .

The third feature is that the box body W is positioned and supported on the transport section 4 by a stop guide 50 and a cutter K for cutting left and right sides.

[0007] Fourth, a box W in which an article is stored and the outer lid M is stacked on the inner lid N and the lid F is closed to form a package is placed on the transport unit 4 with the lid F facing down. Place it in the inverted state,
It is characterized in that an upwardly directed bottom side corner is cut with a cutter K.

Further, the box incising device according to the present invention comprises:
In addition, the incision portion 3 is provided so as to be able to move up and down with respect to the positioning portion 5 of the transporting portion 4, and a support rod 31 is provided horizontally on a lifting frame 30 of the incision portion 3, and a front cutter portion 6 a And a support 3 having a left cutter 6c, a right cutter 6d, and a rear cutter 6b.
2a is mounted so as to be movable in the cutting direction.
a is laterally moved to the support table 32 to cut the front side of the box W, and the rear cutter portion 6b is laterally moved to the support table 32a to cut the rear side of the box W. To the box body W with the left cutter part 6c and the right cutter part 6d.
The left and right sides are cut off.

Second, the left cutter section 6c and the right cutter section 6d are supported by the rear cutter section 6b supported by the support table 32a.
Are supported with a leading edge distance L, and the support table 32
It is characterized in that the rear side is cut while the left and right sides of the box body W are front-cut by the movement of a.

[0010]

An embodiment of the present invention will be described with reference to the drawings. First, a cutting device 1 according to the present invention will be described with reference to FIGS. The incision device 1 is configured to place a box W made of cardboard or the like in which the left and right outer lids M are superimposed on the front and rear inner lids N to form a packing unit 5 of a transport unit 4 to be described later.
After the front and rear side walls having the inner lid N are first cut, the left and right side walls having the outer lid M are cut, so that the entire side wall of the box body W is cut and the inner lid N and the outer side are cut off. The lid portion F having the lid M can be efficiently and easily cut off from the box main body so as to perform an incision operation.

The incision device 1 comprises a box body with guide shafts 20 suspended from front and rear and left and right sides of a body 2 framed in a vertical and horizontal frame, and an incision 3 described later is horizontally supported by the guide shafts 20. In addition to being provided so as to be able to move up and down in accordance with the height, a transport section 4 such as a roller type conveyor for transporting the box W is installed below the incision section 3, and the box W is placed outside the rear machine. It can be conveyed from the formed supply section to a discharge section formed outside the front side of the machine. A positioning unit 5 for positioning and fixing the box W in the cutting standby posture is provided in the middle of the transport unit 4 and below the cutting unit 3. Box W
In a state where the incision section 3 having the plurality of cutter sections 6 individually corresponding to the respective side walls is stopped at a predetermined incision position via the elevating mechanism 7, the cutter sections 6 are arranged along the respective side walls. The cutting operation is performed so that the lid F of the box W can be separated from the box body.

Each of the above-mentioned operating parts includes a control panel 10 provided below the transport body 4 and an operation panel 11 provided on the front of the machine body.
By operating the actuators such as the air cylinder and the motor arranged as shown in FIGS. 3 and 8 based on the set mode and timing and the position detection of the sensors described later, As shown in FIGS. 8 and 9, the upper and lower sides of the box body W placed and positioned in the cutting posture and positioned in the cutting posture, as shown in FIGS. Cutting is performed by the cutter K of the cutter section 6a, the rear cutter section 6b, the left cutter section 6c, and the right cutter section 6d), so that the entire circumference of the box W is cut efficiently and accurately.

The box W to be cut by the cutting device 1 in the illustrated example is a rectangular parallelepiped cardboard box in which various articles such as vegetables and foods are stored. A lid F comprising an inner lid N and an outer lid M is attached and closed using a fastener T such as a gum tape as a general lid closing means, but other cubic boxes are shown. It is a matter of course that the present invention can cope with a body. Further, the cardboard box (box W) as described above has an outer lid M and an inner lid N.
Is folded inward, a concave groove-shaped folded portion S tends to be formed on the inner surface of the base portion. However, the cutting form by the cutter K in the illustrated example is such that the upper portion of the side wall of the box W is retracted from the outside by a predetermined amount. The cutting edge having an angle is cut obliquely upward by a cutter K having an inclination angle.
It cuts at the position where it rushes into and faces.

Thus, when the entire periphery of the side wall of the box W is cut and the lid F is cut, the cut surface of the side wall is cut without fail by a clean slope with the inside height increased, and the closing member T is closed. Thus, the lid F, which is integrally closed, can be easily removed from the box body.
Further, the article located at the corner in the upper portion of the box W, the bag packaging the article, and the like are prevented from being cut by the cutting edge. Then, the cutting device 1 transfers the box W to the transport unit 4.
The upper side can be supplied in either the portrait or landscape orientation, but the side where the outer lid M and the inner lid N are both overlapped, that is, the front and rear sides are aligned so that the side wall having the inner lid N coincides with the transport direction. It is good to place and supply on the carrier 4 in this case, and in this case, deformation of the box body W due to cutting resistance when each cutter K is cut and moved in the lateral direction at the time of the cutting operation is properly prevented, This makes it possible to efficiently and satisfactorily perform high-precision cutting while simplifying the configuration of the entire apparatus.

Next, a detailed configuration of each of the above units will be described. First, as shown in FIGS. 1 to 3, the incision portion 3 is pivotally supported on each guide shaft 20 through a slide metal portion in a substantially horizontal posture, and is raised and lowered by the operation of the lifting mechanism 7.
Is formed in a rectangular shape which is long in the front-rear direction in plan view, and a support rod 31 is provided laterally on the left and right inside thereof, a support table 32 having front cutter parts 6a on the front and rear sides of both support rods 31, and a left cutter part 6c
A support table 32a having a right cutter section 6d and a rear cutter section 6b is axially slidably mounted in the axial direction (cutting direction). The means for movably mounting in the cutting direction is not limited to the above-mentioned means, but may be a slide rail support structure or the like. The back and forth movement of the support table 32 is performed by an air cylinder 33 provided on the front side of the body 2 and the back and forth movement of the support table 32a is controlled by the support table 32a.
Gear 35a of the slide motor 35 installed in the
Is engaged with a rack gear 35b extending substantially in parallel between the support rods 31 and 31 by performing forward and reverse rotation of the slide motor 35.

The front cutter portion 6a is reciprocally supported by a horizontal support rod 31a which is integrally provided horizontally below the support table 32 in a direction perpendicular to the transport direction. The operating block 36a of the operating rod 36 formed of a rodless cylinder or the like is connected to the cutting position by cutting and moving in the direction of the arrow from the standby position of the cutting operation shown in FIGS. 3 and 5 by the operation of the operating block 36a. I am trying to do it. The rear cutter portion 6b is reciprocally supported by a horizontal support rod 31a which is integrally provided below the support base 32a similarly to the above, and a rodless cylinder or the like provided along the same. 3 and FIG. 7 by this operation.
Can be cut and moved in the direction of the arrow from the standby posture shown in FIG.

The left cutter section 6c and the right cutter section 6
d denotes two widths which are respectively supported on both sides of a lateral support rod 31a provided laterally below the support base 32a so as to be able to reciprocate, and which are installed on the upper part of the support base 32a in directions opposite to each other. 3 and 6, the cutters K are simultaneously moved in the directions of the respective arrows from the standby posture shown in FIGS. After inserting, it is paused and then cut and moved again. That is, in this embodiment, the rear cutter portion 6 supported by the support base 32a is used.
b, the left cutter part 6c and the right cutter part 6d are supported with a front cutting distance L deviated by a predetermined amount toward the front side, and the left and right sides of the box W are moved by the movement of the support base 32a. The rear side is cut in a state where the side is front-cut. In addition, a plurality of rollers 32R that roll while pressing against the upper surface of the box W are provided on the lower surface of the support base 32a at substantially the center of the left and right cutter portions 6c and 6d, thereby causing resistance to cutting. Deformation such as box bulging is regulated.

In this embodiment, each cutter section 6 operated by each actuator in the above-described support structure operates in the following order and timing to apply an excessive force to the box W. The lid F can be efficiently and accurately incised without giving or deforming it. That is,
The incision unit 3 first moves the front cutter unit 6a rearward via the support base 32 with respect to the size of the box body W positioned by the positioning unit 5 on the transport unit 4 (dotted line in FIGS. 3 and 4). The cutter K is set to a standby position at a position (dotted line A in FIG. 9) having a predetermined cutting depth on the side of the box W,
At about the same time, the left cutter section 6c and the right cutter section 6d
With the both cutters K positioned at a predetermined cutting depth corresponding to the width of the box W by the operation of the width determining cylinder 37, the support table 32a is moved forward as shown in FIG. Then, both cutters K are inserted into the box W and made to protrude, and the rear cutter 6b is set to a cutting standby posture in which the rear cutter 6b is positioned at a predetermined cutting depth on the side of the box W similarly to the front cutter 6a.

In this way, as shown in FIG.
The front cutter 6a is moved in the incision direction to cut the front side or the front side of the side wall or the like of the front middle lid N base of the box W, and then, as shown in FIG. After moving and cutting the rear side of the base of the rear inner lid N, FIG.
By cutting the both sides of the box W by moving the left cutter 6c and the right cutter 6d forward as shown in (D), the incision of the lid F of the box W can be completed smoothly. Like that.

Next, the lifting mechanism 7 for raising and lowering the incision portion 3 having the above-described configuration will be described with reference to FIGS. The elevating mechanism 7 supports an elevating shaft 70 having sprockets 70 a at the left and right ends before and after the upper portion of the body 2. One end of a chain 71 wound around each sprocket 70 a is fixed to the elevating frame 30. And a weight 7 having the other end slidably provided below the guide shaft 20.
2, the weight of the incision 3 is reduced by the weight 7
2 so that the elevating shaft 70 is connected to the elevating motor 7.
3, the motor is driven so as to be capable of normal and reverse rotation. Thus, the up-and-down movement of the incision portion 3 can be smoothly performed even by the small up-and-down motor 73. When the incision section 3 descends from the standby position shown by the solid line in FIG. 1, the box W in the incision standby position, which is positioned and fixed by the positioning section 5 of the transport section 4, is moved to the height by the box detection sensor 75 shown in FIG. By detecting and stopping the lifting motor 73, the driving of each cutter unit 6 is stopped at a predetermined cutting height position.

Next, the transport unit 4 and the positioning unit 5 installed in the middle of the transport unit 4 will be described. As shown in FIGS. And a plurality of transfer rollers 41 driven by a not-shown conveyor motor are provided on the transfer frame 40 so as to be supplied to an incision position in the middle of the transfer unit 4. A positioning section 5 for positioning and fixing the transported box W is provided. The positioning unit 5 includes a stop guide 50 for positioning the stop position of the box W on the lower side in the transport direction, and a holding guide for positioning in the left-right direction by holding the lower side of the stopped box W from both sides. 51. A stop guide 52 is provided on the upstream side of the holding guide 51 in the transport direction to stop the transport of the box W supplied and transported to the next position in a standby state.

Each of the stop guides 50 and 52 in the illustrated example has a stop cylinder 53 attached and fixed to the transport frame 40.
Thus, it is supported on the transport path of the transport unit 4 so as to be able to move in and out based on a command from a box passing position detection sensor (not shown). Further, the holding guides 51, 51
In the state slidably supported by the front and rear support rods 55 traversing in a direction perpendicular to the direction, an operation rod 56 having a rack gear formed inward is provided in the middle thereof, and the rack gears of both operation rods 56 are opposed to each other. In this state, each pinion is engaged with a pinion gear 58 of the width determining motor 57. Thereby, when the width determining motor 57 is driven to rotate forward and reverse according to the width detection command,
The nipping guides 51, 51 are operated simultaneously, and the box body W is nipped and fixed from both sides at the center of the transport unit 4 by the nipping guides 51, 51 as shown in FIGS. In addition, the positioning of the box W can be performed simply and accurately. The width determining means as described above is not limited to this.

Next, the cutter section 6 used in the cutting device 1 configured as described above will be described. The cutter unit 6 has the configuration shown in FIGS. 10 to 14, and constitutes a front cutter unit 6 a and a rear cutter unit 6 b and a left cutter unit 6 c and a right cutter unit 6 d by substantially the same configuration. In each of these, the knife-shaped cutter K is attached and fixed in the above-described cutting posture in the direction of the incision movement, whereby each cutter K is moved along the upper side of each corresponding side wall of the box W and moved along the same. And make it possible to cut appropriately.

That is, the cutter section 6 is provided with the slide body 6.
0 is slidably fitted and supported on the support rod 31a,
Each slide body 60 is connected to the operation block 3 of the operation rod 36.
6a to be detachably engaged or the operating block 3
By connecting to 7a, it is possible to reciprocate in each axial direction. The slide body 60
Is attached and fixed bracket 61 downward on both sides,
A cutter portion main body having a downward U-shape is formed in a front view, and a bracket 61 on both sides is provided with a support shaft 62 in the same direction as the support rod 31a, and the support shaft 62 has a guide member 8, a cutter holder 9, and the like. The cutter support frame 63 is rotatably mounted and supported, and the guide member 8 side is urged downward about the support shaft 62 by a tension spring 65 provided on the cutter support frame 63 and the bracket 61. Thereby, the upper guide roller 80 of the guide member 8 is moved along the upper surface of the corner portion of the box W, and the cutting position by the cutter K can be continuously cut from the upper surface at a predetermined position. I have to.

In the illustrated example, the guide member 8 includes an upper guide roller 80 which is rolled along the upper surface (outer cover M) of the corner of the box W, and a corner portion which is orthogonally close to the upper guide roller 80. And a side guide roller 81 which is brought into rolling contact with the side surface (side wall), and is configured as shown in FIG. 10, FIG. 12, and FIG. That is, the cutter support frame 63
Is formed in a housing frame shape and has an upper guide roller 80 serving as a guide member 8 on its front surface, and has two slide shafts 66 in a direction substantially orthogonal to the support shaft 62 inside the housing frame.
, The cutter shaft 9 is slidably supported on the slide shaft 66, and the cutter holder 9 is urged forward (in a deep cutting direction) by a spring 67 provided on the cutter support frame 63. By moving the side guide roller 81 of the guide member 8 along the side surface of the corner of the box W, the cutting position by the cutter K is changed to a side surface cutting structure capable of continuously cutting a predetermined position from the side surface. ing.

Reference numeral 80a denotes an auxiliary guide roller (auxiliary guide section) provided adjacent to the upper guide roller 80 in the cutting direction, and the auxiliary guide roller 80a is moved by cutting from the standby position of the cutter section 6 so that the guide roller 80 is moved. Before riding on the upper surface (the outer lid M), the cutter supporting frame 63 can be made to ride on the upper surface in advance to bring the cutter support frame 63 into an appropriate cutting posture.
Thereby, the initial cutting position by the cutter K can be satisfactorily started before starting from the proper position without causing a copying delay caused by the upper guide roller 80 alone. It is.

The cutter holder 9 is provided with a knife-shaped cutter K at the center of the lower surface thereof with a mounting screw 90.
At the tip of a mounting arm 91 extending from the side of the mounting position of the cutter K, the upper guide roller 80 is paired with the upper guide roller 80. A side guide roller 81 as a side guide member 8 is rotatably supported along the side surface of the box W via a vertical axis 92. Further, the cutter unit 6 configured as described above includes the cutter K and the upper guide roller 8.
The relationship between 0 and the side guide rollers 81 is as follows.

That is, the cutter K has its cutting edge inclined at the above-mentioned appropriate cutting angle positioned so as to face the folded portion S of the box W in front of one bracket 61 side. At the position to be held, the central peripheral surfaces of the upper guide roller 80 and the side guide roller 81 are rolled into contact with the outer lid M (upper surface) and the side wall (side surface) of the box W as shown in FIGS. The height of the cutter K is set to be substantially the same as the height of the support shaft 62 while the cutting edge of the cutter K is positioned substantially in the middle of the orthogonal plane between the guide roller 80 and the side guide roller 81 (see FIG. 12), the center of rotation of the upper guide roller 80 and the side guide roller 81 are aligned substantially on the same line as the cutting edge, and coincide with a line substantially orthogonal to the direction in which the cutting edge moves.

Thus, when the cutter unit 6 moves in the cutting direction, the upper guide roller 80 rolls while pressing the outer lid M around the support shaft 62 by the spring 65 by the above-described upper surface copying and cutting structure. The cutter support frame 63 can be freely swung about the support shaft 62 by the operation of the upper guide roller 80 following the outer cover M, and the cutting position in the height direction of the cutter K can be kept constant. can do. Further, the cutter K has a feature that its cutting edge swings up and down near a substantially horizontal axis of the support shaft 62, so that a predetermined cutting can be satisfactorily performed without largely changing the upward cutting angle.

The side guide roller 81 rolls by pressing the side wall of the box W through the cutter holder 9 slidably supported by the spring 67 by the spring 67 by the above-described side surface scanning cutting structure. Therefore, the side guide roller 81 can slide the cutter holder 9 forward and backward on the slide shaft 66 according to the condition of the unevenness of the side wall, etc., so that the cutting position in the depth direction of the cutter K is constant and the cutter K It is characterized in that it can be cut satisfactorily without greatly changing the position of the cutting edge.

Accordingly, the upper guide roller 80 and the side guide roller 81 roll along the top and side shapes of the corners of the box W by the above three arrangements, and the cutter 6 in the cutting direction. Of the cutter K can be smoothly performed without a large resistance, and the cutting edge of the cutter K can be accurately moved along the shape of the corner portion, so that the lid portion F can be moved at a predetermined cutting position. There are advantages such as cutting to an appropriate cutting depth.

Next, a description will be given of a method of cutting a box by the cutting device 1 configured as described above, a mode of use, and the like. First, the cutting section 3 is raised, and the stop guide 52 is
When the box body W is supplied and placed on the transport section 4 of the lancing device 1 in a retracted state in which the cutter section 6 is in a standby state and the apparatus is operated, the box section W is transported by the transport section 4. The sheet is conveyed to the positioning section 5 by the operation of the roller 41, where it is stopped and fixed by the stop guide 50 and the holding guide 51.

Next, the cutout 3 is lowered to a predetermined cutting position of the lid F by the operation of the elevating motor 73 and the command of the box detection sensor 75 with respect to the box W positioned and fixed as described above. The cutter unit 6 which is stopped and operated by the above-described support structure and each actuator simply and accurately cuts the lid F by the cutting method of the present invention. In this embodiment, by operating each cutter unit 6 in the following order and timing, the box W
The lid F can be cut satisfactorily without giving excessive force to the box W or causing the accompanying deformation.

That is, as shown in FIG. 9A, the cutting of the box W is performed by first moving the front cutter 6a through the support table 32 from the standby state of the cutter 6 shown in FIGS. After the cutter K is moved to a cutting standby position on the front side where the cutter K is stopped at a predetermined cutting depth position on the front side of the box W, the front cutter 6a is moved along the support rod 31a in the cutting direction. After cutting the front side of the box W by the cutter K to complete the front side cutting step in which the inner lid N and the outer lid M overlap (overlapping lid side cutting), the front cutter section 6a is stopped and located on the left outer side separated from the box W.

Next, the left cutter unit 6c and the right cutter unit 6d waiting at the left and right outer sides of the box W at substantially the same time.
By operating the width determining cylinders 37, 37, as shown in FIG. 7B, both sides are moved to the predetermined cutting depth position and stopped in the cutting standby posture on both sides. While maintaining this posture, the support table 32a is moved forward, and the cutter K of the rear cutter portion 6b is cut to a predetermined cutting depth while cutting the front cutting distance L by the cutters K and K. After moving to the position, it is set to the cutting standby posture on the rear side. Then, as shown in FIG. 3C, the rear cutter 6b is cut and moved leftward along the support rod 31a to thereby move the inner cover N of the box W.
And the rear side cutting step in which the outer lid M overlaps,
The rear cutter portion 6b is stopped on the outer left side of the box W.

At this time, since the front side of the lid F of the box W has already been cut by the front cutter 6a, the rigidity of the box is lost and the box F is weakened and easily deformed. With the front base of the inner lid N being cut,
Although the outer lids M on both sides are going to be lifted and deformed in the lid opening direction, since the front cutting distance L of the left cutter part 6c and the right cutter part 6d has been cut, both upper sides of the rear part of the box body W have both sides. Since the cutters K, K are in a state of being supported by being stopped during cutting, the cuts of the cutter K can be stably supported while preventing deformation of this portion. Accordingly, when the cutter K of the rear cutter portion 6b moves from one side to the other side, the cutting of the rear side can be performed accurately and smoothly in a state where the cutting resistance prevents displacement and deformation of the box W. And so on.

After the front and rear cutters 6a and 6b perform the overlapping lid side cutting in the front side cutting step and the rear side cutting step, the slide motor 35 is driven. When the table 32a moves forward, the cutters K, K of the left cutter unit 6c and the right cutter unit 6d move from the middle of cutting, which has begun to cut in advance, as shown in FIG. Can be smoothly cut by cutting the base side wall over the entire length.

Therefore, in the cutting process of the both sides, since the front side and the rear side of the lid F of the box W are already cut by the front cutter 6a and the rear cutter 6b, Rigidity is lost and weakened, and it is likely to be accompanied by deformation. However, since the initial cutting for the pre-cut distance L has been performed in advance, cutting resistance may be greatly impacted when starting cutting again. In addition, it is possible to satisfactorily prevent the deviation of the cutting start position from occurring, and it is advantageous in that the non-overlapping lid-side cutting of the box W can be performed smoothly over the entire length.

At this time, the center of the lid F is
Even if the lid F is deformed upward, it is precisely prevented because it is pressed by 2R, so that the cutters K, K can cut precisely and neatly without cutting the side walls shallowly or wavy. Can be done. As described above, the box body W is cut by the front overlapping lid side in the front side cutting step by the front cutter unit 6a, and is cut by the rear overlapping lid side in the rear side cutting step by the rear cutter unit 6b. Left cutter part 6
c and the right cutter section 6d perform the cutting step and method of cutting the side of the non-overlapping lid side, so that the periphery of a cardboard box or the like in a packed form in which the inner lid N and the outer lid M are superimposed on each other. In addition, since both the side walls on the side of the outer lid M can be appropriately cut, the cover portion F of the box W can be cut easily in its entire circumference and easily cut.

Next, when the incising step of the lid F of the box body W as described above is completed, the incising section 3 raises each cutter section 6 in the cutting completed posture, and moves each cutter section 6 to the original cutting standby posture. At about the same time, the positioning unit 5 causes the stop guides 50 and 52 to retreat from the transport surface, and drives the transport unit 4 to discharge and transport the cut box W to the next position. The box W is conveyed to the positioning section 5, and the next box W is positioned and fixed again by the projection of the stop guide 50 and the holding operation of the holding guide 51, and the above-described incision process is repeated again. The work can be performed efficiently and continuously.

The incision device 1 for performing the incision work in this manner
Is provided with a cutter section 6 which is individually cut and operated in accordance with each side of the box W, so that cutting can be performed accurately while cutting resistance at the time of cutting operation is reduced as much as possible. And the box W is not significantly deformed at the time of each cutting, so that the entire circumference of the box W can be accurately incised without damaging the articles inside, and the operating rod can be cut. Since each cutting step is performed without simultaneously operating the actuators such as the cylinder 36 and the width determining cylinder 37 at once, it is possible to reduce the size of the compressor, hydraulic equipment or motors as much as possible without increasing the size. Thus, there is a feature that the configuration of the entire apparatus can be simplified and the cost can be reduced.

The box body W for which the cutting operation is completed as described above is provided with the cutter unit 6 shown in FIGS.
With the configuration described above, since the cutting edge of the cutter K is cut toward the folded portion S, there is an advantage that damage to the internal articles and their packaging can be favorably prevented. In addition, since the box W that has completed the incision work is in a state where the lid F whose entire circumference has been cut is placed on the box main body, the lid F can be easily removed. Can be easily taken out.

Further, in the illustrated example according to the present invention, the box W
Describes an example in which the lid F on the upper surface side is incised. However, according to the method and the apparatus for incising a box according to the present invention without limiting to this, the state in which the box W in which the articles are stored is inverted. May be placed on the transporting section 4 and the lid F serving as the bottom of the box W may be cut upward with the upper surface facing upward. In this case, for example, the box W When a bag containing sweets and other items is tightly packed inside the bag, the ears at the bottom of the bag are generally bent or crushed. When the box W is turned over, the ears at the bottom of the bag can be reliably separated from the inner surface of the lid F, so that the ears can enter the folded portion S or be located immediately adjacent to the corners. Since the contact can be prevented, the folded portion S or the The cutting edge of the cutter K to move near the like, securely prevented from contacting thereto during cutting, but never Sonsuru off the bag and article.

Further, according to the above-described cutting method, the article can be easily and surely separated from the lid F and the corner on the upper surface side in the box W, so that the cutter K is folded as shown in the illustrated example. For example, even if the cutter K is cut in a substantially horizontal state and the vicinity of the corner is desirably cut without being cut toward the portion S or inclined upward, it is possible to easily avoid damage to the article. Therefore, there are new advantages such that the cutting operation can be performed efficiently and easily, and the configuration of the apparatus can be simplified.

In any of the above-described cutting operations, the box W does not cut the entire periphery of the lid F, but leaves a part of the corner or a part of the side wall uncut. In this case, when the cut box W is transported or displayed as it is, the inside of the box W is protected while preventing the lid F from leaking. It can be performed well. Further, the method and the apparatus for cutting a box according to the present invention are not limited to cutting only the corner portion as described above, but may cut the middle part of the side wall of the box W. W is not limited to the one having the lid portion F that forms the inner lid N and the outer lid M as described above.

[0046]

According to the present invention, the following effects can be obtained by employing the above-described method for cutting a box. After cutting the front and rear sides of the box positioned in the transport unit, the left and right sides are cut, so it can be easily and accurately performed without giving excessive resistance to the box or causing major deformation. An incision can be made.

Further, by cutting the side of the box body forward with a cutter and stopping the cutting at an intermediate portion, the side body can be cut well while the box body is stably supported by the cutter.

Further, the box body is positioned and supported by the stop guide of the transport unit and the cutter for cutting the left and right sides, so that the box body can be fixed accurately.
Cutting by a cutter can be performed smoothly.

Further, the box containing the articles is placed on the transporting unit in an inverted state, and the corners are cut with the bottom of the boxes facing upward, so that the bottom and the articles are separated. The cutting by the cutter can be performed favorably and easily by separating them.

The present invention has the following effects by using the above-described box cutting device. A cutting section is provided in the positioning section of the transport section so as to be able to move up and down, and a support table having a front cutter section, a left cutter section, a right cutter section, and a rear cutter section are provided on the front and rear sides of a support rod provided laterally on the lifting frame. By mounting the supporting base in the cutting direction, cutting the front side of the box by moving the front cutter part laterally, cutting the rear side by moving the rear cutter part laterally, moving the supporting table to the front side By cutting the left and right sides of the left and right cutters, cutting is performed accurately while reducing the cutting resistance of each side during incision work. Satisfactorily without cutting. Further, since the cutter units are not simultaneously moved by cutting, the configuration of the entire apparatus can be simplified and the cost can be reduced.

Further, the left cutter part and the right cutter part are supported with a front cutting distance with respect to the rear cutter part supported by the support table, and the left and right sides of the box are front-cut by moving the support table. With the configuration in which the rear side is cut in the state, the rear side can be cut accurately and smoothly while preventing deformation while the box body is supported by the left and right cutters.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of an incision device according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a plan view showing a configuration of an incision portion.

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a front view showing a configuration of a front cutter unit.

FIG. 6 is a front view showing a configuration of a left cutter unit and a right cutter unit.

FIG. 7 is a front view showing a configuration of a rear cutter unit.

FIG. 8 is a perspective view showing a cutting operation of the cutting device.

9A and 9B show steps of a box cutting operation, and FIG. 9A is a cutting step diagram using a front cutter unit. (B) is a cutting start process diagram of a rear cutter part and a left cutter part and a right cutter part. (C) is a cutting process diagram by the rear cutter unit. (D) is a cutting process diagram by the left cutter unit and the right cutter unit.

FIG. 10 is a front view of a cutter unit.

FIG. 11 is a rear view of FIG. 10;

FIG. 12 is a side view of FIG. 10;

FIG. 13 is a bottom view of FIG. 10;

FIG. 14 is a sectional view taken along line AA of FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incision apparatus 2 Body 3 Incision part 4 Carrier 5 Positioning part 6 Cutter part 6a Front cutter part 6b Rear cutter part 6c Left cutter part 6d Right cutter part 7 Elevating mechanism 8 Guide member 9 Cutter holder 30 Elevating frame 31, 31a Supporting rod 32, 32a Support base 50 Stop guide K Cutter L Front cutting distance M Outer lid N Inner lid W Box

Claims (6)

[Claims] 1. A box (W) positioned in a transport section (4).
By cutting the box (W) at the front and rear sides in the transport direction and then cutting the left and right sides,
An incision method for a box body in which the lid (F) is incised in the box body. 2. The method according to claim 1, wherein the left and right sides are cut by front and rear cutters (K) from the front and rear sides and the cutting is stopped at an intermediate portion.
How to cut the box. 3. A box (W) on a transport section (4),
The method for cutting a box body according to claim 1 or 2, wherein the box body is positioned and supported by a stop guide (50) and a cutter (K) for cutting left and right sides. 4. A box (W) in which an article is accommodated, an outer lid (M) is overlapped with an inner lid (N), and a lid (F) is closed to form a package is placed on the transporter (4). 4. The method for cutting a box body according to claim 1, 2 or 3, wherein the apparatus is placed in a state where the lid (F) is turned upside down and the corner on the bottom side facing upward is cut with a cutter (K). . 5. An incision section (3) is provided to be able to move up and down with respect to a positioning section 5 of a transport section (4), and a support rod (31) is provided horizontally on a lifting frame (30) of the incision section (3). A support table (32) having a front cutter section (6a) on the front and rear sides of the support rod (31), and a support table having a left cutter section (6c), a right cutter section (6d), and a rear cutter section (6b). (32a) is mounted so as to be movable in the cutting direction, the front cutter (6a) is laterally moved on the support table (32) to cut the front side of the box (W), and the rear cutter (6).
b) is moved laterally to the support base (32a) to cut the rear side of the box (W), and the support base (32a) is moved forward to move the left cutter part (6c) and the right cutter part (6d). A box cutting device configured to cut the left and right sides of the box (W). 6. The left cutter part (6c) and the right cutter part (6d) are supported with a front cutting distance (L) with respect to the rear cutter part (6b) supported by the support base (32a). 6. The box cutting device according to claim 5, wherein the rear side is cut in a state where the left and right sides of the box (W) are front-cut by moving the support table (32a).