JPH10101039A - Box cutting equipment and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely cut a box such as a corrugated box by providing a tool rest capable of being displaced relative to a frame, and a copying tool which is supported by the tool rest and copies a cut face of the box to adjust the projection of a blade tip from the copying tool. SOLUTION: A box cutting device 11 is provided with an elevating/lowering table 22 relative to a frame 21, a tool rest 31 capable of vertically displaced relative to the elevating/lowering table 22, and a ski-shaped copying plate 33 to copy a cut face 1A of a box 1. When the box 1 is relatively moved to the cutting work area of the box cutting device 11, the tool rest 31 is vertically displaced relative to the elevating/lowering table 22 so that the copying plate 33 supported by the tool rest 31 is surely along the cut face 1A of the box 1, and the box 1 is cut by the blade tip projected from the copying plate 33. Even in the case where the box height is different due to the manufacturing error, deformation, etc., of the box 1, the blade tip of a blade 32 is cut to the prescribed cut depth of the box 1 by copying the copying plate 33 to the cut face 1A of the box 1, and the box 1 is completely cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box cutting apparatus and a method suitable for cutting a top surface or a side surface of a box such as a cardboard box in order to take out an article in the box with a distribution apparatus or the like.

[0002]

2. Description of the Related Art Hitherto, in a physical distribution device, a box cutting device for opening a box in a process of transporting a box such as a cardboard box discharged from a warehouse to a fluidized shelf or the like has been used. A conventional box cutting device cuts a box by adjusting a blade to a standard box cut level corresponding to a constant box height determined for each type of box, and moving the blade along a box cut surface. I have to do that.

[0003]

However, in the case of a box such as a cardboard box, even if it is of the same type, a box manufacturing error,
The box cut level does not always become the standard box cut level due to deformation during the transport process. For this reason, a box having a box cut level lower than the standard box cut level cannot be cut because the blade does not touch the box cut surface or the box cut surface thickness cannot be sufficiently cut.

In a box such as a cardboard box, it is necessary to sequentially cut all sides (four sides in the case of a rectangular box) on the top surface of the box. At this time, a box cutting device is arranged at each of a plurality of positions along the transport path of the box, and each side of the box is sequentially cut by each box cutting device. It is desired that the equipment be compactly installed.

An object of the present invention is to make it possible to completely cut a box such as a cardboard box.

Another object of the present invention is to reduce the size of box cutting equipment.

[0007]

According to a first aspect of the present invention, there is provided a box cutting apparatus for cutting a box with a blade.
A tool rest that can be displaced with respect to the gantry, a copying tool that is supported by the tool rest, and follows the cut surface of the box, and a cutting edge cut positioning device that adjusts the amount of protrusion of the cutting edge from the copying tool. It is.

According to a second aspect of the present invention, there is provided a box cutting device for cutting a box with a cutting tool, comprising: a lifting platform that can be raised and lowered with respect to a gantry; A copying tool supported by the tool rest and following the cut surface of the box; and a cutting edge cutting positioning device for adjusting the amount of protrusion of the cutting edge from the copying tool.

According to a third aspect of the present invention, in the second aspect of the present invention, when the tool post is supported by a lifting link by a swing link and the copying tool comes into contact with a cut surface of the box. The tool post is vertically displaced by the swing displacement of the swing link, so that the copying tool follows the cut surface of the box.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the cutting edge positioning device further includes a cutting edge positioning drive section supported by a tool post, and the copying tool is used to cut the cutting tool. It is displaced with respect to the table.

The present invention according to claim 5 provides the present invention according to claims 2 to 4
In the present invention described in any one of the above, further, there is provided an extra guide which is supported by the elevator and is in contact with a guide surface intersecting the cut surface of the box.

The present invention according to claim 6 provides the invention according to claims 1 to 5
In the present invention described in any one of the above, the blade is a tip saw.

The present invention according to claim 7 provides the invention according to claims 2 to 6
A box cutting method using the box cutting device according to any of the above, receiving data of the box cutting level and the box cutting surface thickness from the box cutting control device, so that the copying tool of the tool post is equal to or less than the box cutting level. In addition to positioning the lifting table, the amount of protrusion of the blade edge from the copying tool is set based on the box cut surface thickness, the box is moved relative to the cutting work area by the box cutting device, and the copying tool is placed on the cut surface of the box. The box is cut by a blade tip protruding from the copying tool while vertically displacing the tool rest with respect to the elevating table so as to follow.

According to an eighth aspect of the present invention, in addition to the seventh aspect of the present invention, data of the box guide surface thickness is received from the box cutting control device, and the amount of the protrusion of the cutting edge with respect to the protrusion guide is determined by the box guide. The box is cut with the surface thickness and the amount of protrusion of the cutting edge from the copying tool as the box cut surface thickness.

[0015] The present invention described in claim 9 is the invention according to claims 2 to 6.
A box cutting method using the box cutting device according to any of the above, wherein the top surface of the box is cut in the process of transporting the box, wherein both sides along the transport path of the box among the sides on the top surface of the box A cutting step of cutting a side located on one side of the box, and turning the box on the transport path, and along a transport path of the box, a side to be cut next among the sides on the top surface of the box along the transport path of the box A turning step of positioning the cutting step on the one side; repeating the cutting step and the turning step to sequentially cut an arbitrary side on the top surface of the box.

According to a tenth aspect of the present invention, in the present invention of the ninth aspect, further, after turning the box in the turning step, the box is brought into contact with a stopper to adjust the turning posture of the box. It was made.

An eleventh aspect of the present invention is a box cutting facility for carrying out the box cutting method according to the ninth aspect, wherein a plurality of boxes are provided on the one side along a box transport path. Cutting devices are sequentially arranged, and a box turning device is arranged between adjacent box cutting devices.

The present invention according to claim 12 provides the invention according to claim 11
In the present invention, the turning device may further include a posture regulating stopper for adjusting a turning posture of the turned box.

According to the present invention, the following effects are obtained. When the box is relatively moved with respect to the cutting work area by the box cutting device, the tool rest is displaced so that the copying tool supported by the tool rest always follows the cut surface of the box. Then, the tool of the tool rest cuts the box with the blade tip protruding from the copying tool. Therefore, even if the box height (box cut level) is different due to box manufacturing error, deformation, etc.,
It is assumed that the box can be completely cut by making the copying tool follow the cut surface of the box so that the cutting edge of the cutting tool enters the predetermined cutting depth of the box.

The tool rest can be vertically displaced with respect to the lifting platform, and the lifting platform can be raised and lowered with respect to the gantry. Therefore, by setting the lifting position of the lifting platform so that the copying tool supported by the tool post is positioned, for example, about 5 mm lower than the passage level (box cutting level) of the box cutting surface, the copying tool must be placed on the box. It can follow the cut surface. When the copying tool follows the box cut surface, the tool rest is displaced upward with respect to the lifting platform.

By adjusting the amount of protrusion of the cutting edge from the copying tool on the basis of the box cut surface thickness, the cutting edge positioning device can always position the cutting edge at a predetermined cutting depth of the box.

The extra guide supported by the lift is in contact with the guide surface intersecting the cut surface of the box.
The cutting edge of the blade can be positioned at a predetermined position inside the box from the box guide surface (side wall).

By cutting the box with the amount of protrusion of the blade edge relative to the protrusion guide as the box guide surface thickness and the amount of protrusion of the blade edge from the copying tool as the box cut surface thickness, the cut surface of the box and the guide surface are separated. Cutting can be performed at the position along the inner surface of the guide surface in the intersecting ridge. Thereby, an opening at the maximum interval in the box can be formed in the cut surface of the box from the inner surface of one of the opposing guide surfaces to the inner surface of the other guide surface.

When the blade is a saw blade, the blades alternately escape, so that when cutting the box, the force applied to the blade touches both sides of the blade, causing the box cut surface to vibrate minutely and roughen the cut surface. The blade is easy to escape, especially when cutting the ridge. In contrast,
When the blade is a tip saw, the blades are on the same line in the circumferential direction without alternately escaping, so the box cut surface does not vibrate, the cutting surface is good without roughening, and the ridge cuts the target position accurately be able to.

When sequentially cutting an arbitrary side on the top surface of the box, a cutting step of cutting a side located on one of the two sides along the transport path of the box among the sides on the top surface of the box. And, turning the box on the transport path, comprising a turning step of positioning the side to be cut next among the sides on the top surface of the box on the one side along the transport path of the box, The cutting step and the turning step are repeated. Therefore, the box cutting equipment can make the conveyor length short and compact.

For example, in a rectangular parallelepiped box, in order to cut the four sides on the top surface of the box, the order of right short side cut-left short side cut-90-degree direction change-left long side cut-right long side cut In the case of cutting with, as shown in FIG.
When cutting the left short side after cutting the right end side, the box crosses the conveyor width diagonally forward, so a smaller box requires a distance between adjacent box cutting devices. In the box cutting line, since the box cutting device is arranged in accordance with the smallest box, a long distance is required to cut all sides. In addition, as a result of the arrangement of the box cutting devices being staggered on both sides along the transport path, it is necessary to prepare a box cutting device that is completely different. On the other hand, in the present invention, by cutting in the order of right short side cut-90 degree direction change-right long side cut-90 degree direction change-right short side cut-90 degree direction change-right long side cut, Since the box is always cut to one side of the transport path, it is not necessary to cross the conveyor width diagonally as described above. Therefore, the conveyor length can be shortened and made compact (FIG. 14B). In addition, all the box cutting devices can be aligned on one side along the box transport path. Therefore, the box cutting equipment can be made compact without using a box cutting device which is different in its own right.

It should be noted that the box cutting device can cut only an arbitrary side of all sides of the box. You can prevent the blade of the cutter from being cut out. (A direction from the upper CPU determines which side is not cut.)

In the above, in the box turning process, the box is turned, and then the box is brought into contact with a stopper to adjust the turning position of the box.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a top cut line of a box in a first embodiment, FIG. 2 is a flowchart showing a cut flow of a top surface of a box, FIG. 3 is a front view showing a box cutting device, 4 is a side view showing a box cutting device, FIG. 5 is a schematic diagram showing a setting state of a copying plate in the box cutting device, FIG. 6 is a schematic diagram showing a box entering state in the box cutting device, and FIG. 7 is a box in the box cutting device. FIG. 8 is a side view of FIG. 7, FIG. 9 is a schematic view showing a box cut state,
FIG. 10 is a schematic diagram showing a blade, FIG. 11 is a schematic diagram showing a side cut state of the box, FIG. 12 is a schematic diagram showing a top cut line of the box in the second embodiment, and FIG. FIG. 14 is a schematic diagram showing the line length of the box cutting equipment.

(First Embodiment) (FIGS. 1 to 11) (Cut Top Cut Line) (FIGS. 1 and 2) The box top cut line 10 is an automatic warehouse as shown in FIGS. And a fluid shelf. When the number of corrugated cardboard boxes per pallet is empty in the storage frontage of the fluidized shelf, the pallet packing is removed from the automatic warehouse, and the upper pallet cardboard box is removed from the pallet packing by the single-sheet pick-up machine (FP). The box 1 is taken out, and the box 1 is transferred to the box top surface cut line 10. Each box 1 has a box top cut line 1
In the process of transporting 0, the four sides of the top surface are cut by the box cutting device 11 (11A to 11D), the canopy cut by the canopy removing device 12 is removed, and the swarf is removed by the blowing device 13, and the fluidized shelves are removed. Is supplied. The canopy is discharged to the canopy collection line 14.

In the box top cut line 10, a plurality of boxes 1 of the same type (same size) are cut successively (in units of one side). Therefore, the cardboard box replenishment CPU (box cut control device) sends the data of the type (the number per box, box height, box cut plane thickness (box cut plane cut) supplied to the box top cut line 10 next. Receiving depth), box guide surface thickness (interval from the box guide surface to the cutting position, allowance), and presence or absence of cutting), and setting of the box cutting device 11 (positioning of the copying plate 33) based on these data. From the scanning plate 33 to the cutting edge 32
The protrusion amount of A (cutting depth) and the protrusion amount of the cutting edge 32A from the protrusion guide 43 (the side surface of the box 1 and the guide surface 1B) are determined by the box 1
Complete before you arrive.

Therefore, the top surface cut flow by the box top surface cut line 10 is performed as follows. (1) The boxes 1 taken out one by one by a one-side take-out machine (FP) are separated one by one by the conveyance of the conveyor 10A.

(2) The transport attitude of the box 1 is made shorter by the transport attitude controller 15.

(3) The box 1 is moved to the right in the transport direction of the conveyor 10A, and the right side of the top surface (W
Cut).

(4) The box 1 is moved to the left in the conveying direction of the conveyor 10A, and the left side of the top surface (W
Cut).

(5) The transport attitude of the box 1 is aligned to the longitudinal direction by the transport attitude control device 16.

(6) The box 1 is moved to the left side in the conveying direction of the conveyor 10A, and the left side of the top surface (L
Cut).

(7) The box 1 is moved to the right in the transport direction of the conveyor 10A, and the right side (L) of the top surface is moved by the fourth box cutting device 11D.
Cut).

(8) A plurality of boxes 1 of which the four sides of the top are cut by the above (2) to (7) are grouped by the top chamfering group forming device 17 in one row in the transport direction.

(9) The can top removing device 12 collectively removes the cut top faces of the plurality of boxes 1 grouped in the above (8) and discharges them to the canopy recovery line 14.

(10) The chips from the box 1 from which the top surface has been removed are blown off and removed by the blowing device 13, and then the boxes 1 are supplied to the fluidized shelf.

Hereinafter, the box cutting device 11 will be described (11A to 11D are basically the same). (Box Cutting Apparatus 11) (FIGS. 3 and 4) The box cutting apparatus 11 has an elevating table 22 that can move up and down with respect to the gantry 21. The elevating table 22 can be moved up and down along a guide 23 provided on the gantry 21.
4 toothed belt 26 meshed with the toothed pulley 25
Up and down. The free end of the toothed belt 26 is connected to a lifting counterweight 27 that balances the lifting weight.

The box cutting device 11 has a tool rest 31 which is supported by the lift 22 and can be displaced up and down with respect to the lift 22. The tool post 31 includes an electric tool 32 driven by a motor. The box cutting device 11 has a ski plate-like copying plate 33 (copying tool) that is supported by the tool post 31 and follows the cut surface (top surface) 1A of the box 1. Specifically, the tool rest 31 has the left and right arms 34A, 34B supported by pins on the lifting platform 22 by swing links 35A, 35B to form a four-link mechanism, and the swing links 35A, 35B based on the action of gravity are provided. By the swing displacement, the copying plate 33 can be vertically displaced while being kept in a substantially horizontal posture. The tool post 31 can be vertically moved up to about 10 mm, for example, and the copying plate 33 can be moved by, for example, 5 mm from the cut level of the box 1 (the top level of the box 1).
It is used in a low position. Then, when the copying plate 33 of the tool rest 31 comes into contact with the cut surface 1A of the box 1 that moves relatively, the tool rest 31 moves the swing links 35A, 35B.
Due to the swing displacement, the copying plate 33 is vertically displaced while keeping the copying plate 33 in a substantially horizontal posture, so that the copying plate 33 follows the cut surface 1A of the box 1. The tool rest 31 abuts against a stopper 28 provided on the lift 22 and is stopped at the swinging lower end.

A swing counterweight 62 that balances the swing weight is connected to the tool rest 31 via a suspension wire 61. 63 is a pulley. The tool rest 31 has a dust cover 64 around the tool 32.

In the box cutting device 11, a pulse motor 36 for positioning the cutting edge is provided on the tool post 31, and a copying plate mounting link 38 is connected to the tool post 31 via a bending link 37A and a short link 37B. The link 37A can be driven. Copying plate mounting link 38
The above-described copying plate 33 is attached to the front side via a cushion material 39A on the front end side and via a fixing portion 39B on the rear end side. That is, the pulse motor 3 for positioning the cutting edge
6, the link 38 and the scanning plate 33 are vertically displaced with respect to the tool rest 31 while maintaining the substantially horizontal posture, and the tool 3
Amount of protrusion (cut depth) of the second blade edge 32A from the copying plate 33
Is adjustable.

The box cutting device 11 is provided with a pulse guide 41 for positioning a guide on the elevating table 22, and a free roller-shaped guide 43 is connected to the motor 41 via a long L-link 42A and a short L-link 42B. In addition, the link 42A and the link 42B are connected by the connection link 44. The extra guide 43 is in contact with a guide surface (side surface) 1B orthogonal to the cut surface 1A of the box 1 conveyed on the conveyor 10A, and the cutting edge 32A of the cutting tool 32 is moved to the guide surface 1B.
The surrender amount for is determined. That is, by driving the pulse guide 41 for positioning guide, the guide 43 moves out and retreats to the conveyor 10A while maintaining a substantially straight posture along the conveyance direction, and the cutting edge 32A protrudes from the guide 43. The amount can be adjusted. In the conveyor 10A, the conveyor rollers are skewed in the transport direction so as to press the box 1 against the transfer guide 43 at a box cutting operation position by the box cutting device 11.

Next, a box cutting procedure by the box cutting device 11 will be described (FIGS. 5 to 9). (1) From the cardboard box replenishment CPU (box cut controller)
Box cut level (standard box cut level based on the height of box 1), box cut surface thickness (top plate thickness which is cut surface 1A of box 1), box guide surface thickness (guide surface 1B of box 1) Side thickness) data.

(2) The elevator 22 is moved up and down so that the copying plate 33 of the tool rest 31 is at or below the box cut level (for example, 5 mm lower than the box cut level). At this time, the tool post 31 abuts against the stopper 28 of the lift base 22 and is at the swinging lower end (FIG. 5). Further, the projecting amount of the cutting edge 32A from the scanning plate 33 (depth of cut) d of, the edge cutting position pulse motor 36 is set in a box-cut surface thickness t ₁ (FIG. 9). Further, Projection amount w of the cutting edge 32A against the projection lengths guide 43, the allowance for projection guide positioning pulse motor 41 is set in a box guide surface thickness t ₂ (Figure 9).

(3) The box 1 is moved relative to the cutting work area by the box cutting device 11 to enter the box. Tool post 3
1 absorbs the impact caused by the entry of the box 1 by the flexibility of the copying plate 33 and the cushioning property of the cushion member 39A.
Gradually moves so as to follow the cut surface 1A of the box 1.
Thereby, the tool rest 31 is displaced upward while moving with respect to the elevating platform 22, and the copying plate 33 follows the cut surface 1A of the box 1 (FIG. 6).

(4) When the copying plate 33 follows the cut surface 1A of the box 1 and the box 1 reaches a position corresponding to the center of the blade 32, the box 1 is cut by the cutting edge 32A protruding from the copying plate 33 ( (FIG. 7).

The protrusion amount w of the cutting edge 32A is equal to the box guide surface thickness t _2.
And the cutting depth d of the cutting edge 32A is set to the box cut surface thickness t.
_Since it is set to ₁ , the cutting edge 32A is the cut surface 1A of the box 1.
A position along the inner surface of the guide surface 1B is cut within the ridge where the (top surface) and the guide surface 1B (side surface) intersect (FIG. 9). If there is a gap between the guide surface 1B of the box 1 and the stored articles, the margin w of the cutting edge 32A may be made larger.

Here, as shown in FIG. 8 (B), the copying plate 33 has a blade insertion slot 71, and the leading end and the rear end of the slot 71 are formed as joints 72A and 72B without holes. I have.
For this reason, when the copying plate 33 is placed on the cut surface 1A along the ridge of the box 1 and slidably contacts the cutting edge 32 of the box 1, the joints 72A and 72B of the copying plate 33 As a result of being supported by the guide surface 1B (side wall), the copying plate 33 does not sink into the box along with the cut surface 1A, and the entire length of the box 1 can be stably cut. If the copying plate 33 does not include the joints 72A and 72B, the copying plate 33 sinks into the box together with the cut surface 1A cut by the gravitational action of the tool rest 31, thereby impairing the progress of the cutting operation.

The blade 32 is preferably a tip saw as shown in FIGS. 10 (A) and 10 (B). At this time, blade 3
2 is a cutting edge 32 made of a chip at a cutting edge position of the base material 32B.
A is provided. In a chip saw, as shown in FIG. 10C, adjacent cutting edges 32A are arranged on the same line. On the other hand, in the saw blade, as shown in FIG. 10 (D), the adjacent cutting edges 32A alternately escape, thereby impairing the cutting properties of a cardboard box or the like.

Hereinafter, the operation of the present embodiment will be described. When the box 1 is relatively moved with respect to the cutting work area by the box cutting device 11, the tool rest 3 is moved so that the copying plate 33 supported by the tool rest 31 always follows the cut surface 1 A of the box 1.
1 is vertically displaced with respect to the elevating table 22. And the tool post 3
The first blade 32 cuts the box 1 with a blade edge protruding from the copying plate 33. Therefore, even when the box height (box cut level) is different due to a manufacturing error, deformation, or the like of the box 1, the copying plate 33 is made to follow the cut surface 1 </ b> A of the box 1, and the cutting edge of the cutting tool 32 is It is assumed that the box 1 can be completely cut so as to enter the predetermined cutting depth.

The tool rest 31 can be vertically displaced with respect to the lift base 22, and the lift base 22 can be moved up and down with respect to the gantry 21. Therefore, the copying plate 3 supported by the tool post 31
3 is positioned lower than the passage level of the box cut surface 1A (box cut level) by, for example, about 5 mm.
The copying plate 33 can always be made to follow the cut surface 1A of the box 1 by setting the vertical position of the box. When the copying plate 33 follows the box cut surface 1 </ b> A, the tool rest 31 is displaced upward with respect to the lifting platform 22.

Pulse motor 36 for cutting edge positioning
However, by adjusting the amount of protrusion of the cutting edge from the copying plate 33 based on the thickness of the box cut surface 1 </ b> A, the cutting edge can be always positioned at a predetermined cutting depth of the box 1.

A changeover guide 43 supported by the lift 22
However, since it comes into contact with the guide surface 1B intersecting the cut surface 1A of the box, the cutting edge of the blade 32 can be positioned at a predetermined position inside the box from the box guide surface 1B (side wall).

By cutting the box 1 with the amount of protrusion of the cutting edge relative to the protrusion guide 43 as the box guide surface thickness and the amount of protrusion of the cutting edge from the copying plate 33 as the box cut surface thickness, the cut surface 1A of the box 1 is cut. Can be cut at a position along the inner surface of the guide surface 1B in the ridge where the guide surface 1B intersects the guide surface 1B. Thereby, an opening at the maximum interval in the box extending from the inner surface of the opposing one guide surface 1B to the inner surface of the other guide surface 1B can be formed on the cut surface 1A of the box 1.

When the blade 32 is a saw blade, the blades alternately escape, so that when the box 1 is cut, the force applied to the blade touches both sides of the blade, and the box cut surface 1A vibrates minutely and the cutting surface The blade is easy to escape when the surface is rough, especially when cutting the ridge. On the other hand, when the blade 32 is a tip saw, the blades are on the same line in the circumferential direction without alternately escaping, so that the box cut surface 1A does not vibrate and the cut surface is good without roughening, and even on the ridge. You can cut the target position.

FIG. 11 shows that the box cutting device 11
This is an example of cutting the side surface of. In the box cutting device 11, the copying plate 33 is used to move the tool post 3 so as to follow the side surface of the box 1.
The spring force of the spring 81 is applied as the force for swinging 1. Further, the box 1 is moved to a predetermined cutting operation position on the conveyor 10A by a box width approaching circulation belt device 83 which is resiliently resilient by a spring 82.

(Second Embodiment) (FIGS. 12 to 14) The second embodiment is different from the first embodiment in that the box top surface cut line 100 is
Each time one side is cut, box 1 is turned 90 degrees and all four sides are cut.

As shown in FIG. 12, the box top surface cut line 100 is disposed between the fluidized shelf 101 and the horizontal rotating shelf 102, and the fluidized shelf 101 is
The box 1 taken out of the container is carried in. Each box 1 is provided with a box cutting equipment 10 during the transport process of the box top surface cut line 100.
After the four sides of the top surface are cut by the box-cutting device 11 (11A to 11D) that constitutes 4, it is supplied to the horizontal rotating shelf 102. The configuration of the box cutting device 11 is the same as that in the first embodiment.

The box cutting equipment 104 sequentially arranges four box cutting devices 11A to 11D on one side of both sides along the transport path of the box 1, and also controls the input side of the box cutting device 11A, Adjacent box cutting devices 11A and 1
Box turning devices 105A to 105D are arranged between 1B, 11B and 11C, and 11C and 11D, respectively. The box turning devices 105A to 105D can be constituted by, for example, a turn bar 107 that is backed up by a damper cylinder 106, and turns the box 1 against the turn bar 107 (FIG. 13).

As shown in FIG. 14, each of the box turning devices 105A to 105D includes a posture regulating stopper 108 for adjusting the turning posture of the turned box 1. Stopper 108
Protrudes above the conveyor 100A on the condition that a sensor (not shown) detects that the box 1 has entered each of the box turning devices 105A to 105D, dams the box 1, and regulates the attitude of the box 1. After a certain time, the conveyor 10
It is operated to be immersed below 0A.

Therefore, the top surface cut flow by the box top surface cut line 100 is performed as follows (FIG. 13). (1) The box 1 taken out of the fluidizing shelf 101 by the case picking device 103 is moved to one side (right side) of the left and right sides along the conveyance path by the conveyor 100A and conveyed.

(2) The box 1 is turned by the box turning device 105A arranged on the entry side of the first box cutting device 11A, the conveying posture of the box 1 is set short, and the right short side (W ₁ ) is positioned on the right side of the transport route. The turning posture of the box 1 is adjusted by the stopper 108.

(3) The right short side (W ₁ ) of the top surface of the box 1 is cut by the first box cutting device 11A.

(4) The box 1 is turned by the box turning device 105B arranged on the entry side of the second box cutting device 11B, the conveying posture of the box 1 is turned 90 degrees, and the box 1 is aligned to the longitudinal direction, and the right side of the top is The side (L ₁ ) is positioned on the right side of the transport path. Box 1
Is turned by the stopper 108.

(5) The right long side (L ₁ ) of the top surface of the box 1 is cut by the second box cutting device 11B.

(6) The box 1 is turned by the box turning device 105C disposed on the entry side of the third box cutting device 11C, the conveying posture of the box 1 is turned 90 degrees, and the boxes 1 are aligned short, and the right side of the top surface is set. The short side (W ₂ ) is positioned on the right side of the transport path. Box 1
Is turned by the stopper 108.

(7) The right short side (W ₂ ) of the top surface of the box 1 is cut by the third box cutting device 11C.

(8) The box 1 is turned by the box turning device 105D disposed on the entry side of the fourth box cutting device 11D, the conveying posture of the box 1 is turned 90 degrees, and the box 1 is aligned in the longitudinal direction, and the right side of the top is The side (L ₂ ) is positioned on the right side of the transport path. Box 1
Is turned by the stopper 108.

(9) The right long side (L ₂ ) of the top surface of the box 1 is cut by the fourth box cutting device 11D.

The box 1 of which the top surface is cut on all four sides by the above (1) to (9) is supplied to the horizontal rotating shelf 102. In the process of supplying the box 1 to the horizontal rotating shelf 102, if necessary, the cut top surface of the box 1 is removed by a top surface removing device, or the chips of the box 1 from which the top surface has been removed are blown. It can be blown off by the device.

Therefore, according to the present embodiment, the following operations are provided. When sequentially cutting all sides on the top surface of the box 1, a cutting step of cutting a side located on one side of both sides along the transport path of the box 1 among all sides on the top surface of the box 1 And the box 1 is turned on the transport path, and the next side to be cut out of all sides on the top surface of the box 1 is
And a turning step to be positioned on the one side along the transfer path, and the cutting step and the turning step are repeated. Therefore, the box cutting equipment 104
Conveyor length can be shortened and compact.

For example, in the box 1 having a rectangular parallelepiped shape, in order to cut four sides on the top surface of the box 1, a right short side is cut.
When cutting in the order of left short side cut-90-degree direction change-left long side cut-right long side cut, as shown in FIG. Box 1
Traverses the conveyor width diagonally forward, a smaller box 1 requires a distance between the adjacent box cutting devices 11A to 11D. In the box cutting line, the box cutting devices 11A to 11D are arranged in accordance with the smallest box 1, so that a long distance is required to cut all sides. In addition, as a result of the arrangement of the box cutting devices 11A to 11D being staggered on both sides along the transport path, it is necessary to prepare the selfish box cutting devices 11A to 11D. In contrast,
In the present invention, the box 1 is always cut by cutting in the order of right short side cut-90 degree direction change-right long side cut-90 degree direction change-right short side cut-90 degree direction change-right long side cut. Since the sheet is cut to one side of the transport path, it is not necessary to cross the conveyor width diagonally as described above. Therefore, the conveyor length can be shortened and made compact (FIG. 14B). Further, all the box cutting devices 11A to 11D can be aligned on one side along the transport path of the box 1. Therefore, the box cutting equipment 104 is a self-contained box cutting device 11A to 11A.
It is not necessary to use D, and it can be made compact.

In the above, after the box 1 is turned in the turning step of the box 1, the box 1 is brought into contact with the stopper 108 to adjust the turning posture of the box 1. Can be cut.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed without departing from the scope of the present invention. The present invention is also included in the present invention.

[0079]

As described above, according to the present invention, a box such as a cardboard box can be completely cut.

Further, according to the present invention, the box cutting equipment can be made compact.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a top surface cut line of a box.

FIG. 2 is a flowchart showing a top cut flow of a box.

FIG. 3 is a front view showing a box cutting device.

FIG. 4 is a side view showing a box cutting device.

FIG. 5 is a schematic diagram showing a setting state of a copying plate in the box cutting device.

FIG. 6 is a schematic diagram showing a box entering state in the box cutting device.

FIG. 7 is a schematic diagram showing a state in which a box is cut off from the top surface in the box cutting device.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a schematic diagram showing a box cut state.

FIG. 10 is a schematic view showing a blade.

FIG. 11 is a schematic diagram showing a side cut state of the box.

FIG. 12 is a schematic diagram illustrating a top surface cut line of a box in the second embodiment.

FIG. 13 is a schematic diagram showing a procedure for cutting the top surface of a box.

FIG. 14 is a schematic diagram showing a line length of the box cutting equipment.

[Explanation of symbols]

Reference Signs List 1 box 1A cutting surface 1B guide surface 11 box cutting device 21 gantry 22 elevating table 31 turret 32 cutting tool 32A cutting edge 33 copying plate (copying tool) 35A, 35B swing link 36 cutting edge cutting positioning pulse motor (cutting edge cutting positioning drive unit) ) 43 Departure guide 104 Box cutting equipment 105A to 105D Box turning device 108 Posture regulating stopper

Claims (12)

[Claims] 1. A box cutting device for cutting a box with a blade, comprising: a tool rest that can be displaced with respect to a gantry; a copying tool that is supported by the tool rest and follows a cut surface of the box; and a protruding amount of a cutting edge from the copying tool. A box cutting device comprising: a cutting edge positioning device for adjusting. 2. A box cutting apparatus for cutting a box with a blade, a lifting table that can be raised and lowered with respect to a gantry, a tool table that is supported by the lifting table, and that can be vertically displaced with respect to the lifting table, A box cutting device comprising: a copying tool that follows a cut surface of the cutting tool; and a cutting edge positioning device that adjusts an amount of protrusion of the cutting edge from the copying tool. 3. The tool post is supported by a lifting platform by a swing link, and when the copying tool comes into contact with a cut surface of a box, the tool rest is vertically displaced by the swing displacement of the swing link, and the copying is performed. The box cutting device according to claim 2, wherein the tool is made to follow the cut surface of the box. 4. The box-cutting device according to claim 2, wherein the blade-cut positioning device moves the copying tool with respect to the tool post by a blade-cut positioning drive unit supported by the tool post. 5. The box cutting device according to claim 2, further comprising an extra guide supported by the elevator and in contact with a guide surface intersecting the cut surface of the box. 6. The cutting tool according to claim 1, wherein the cutting tool is a tip saw.
5. The box cutting device according to any one of 5. 7. A box cutting method using the box cutting device according to any one of claims 2 to 6, further comprising receiving box cut level and box cut surface thickness data from the box cut control device, and copying the tool post. Position the lifting platform so that the tool is below the box cut level, and set the amount of protrusion of the cutting edge from the copying tool based on the box cut surface thickness, and move the box relative to the cutting work area by the box cutting device. A box cutting method characterized by cutting the box with a blade tip protruding from the copying tool while vertically displacing the tool post with respect to the lifting platform so that the copying tool follows the cut surface of the box. 8. Receiving data of the box guide surface thickness from the box cutting control device, and setting the amount of protrusion of the cutting edge with respect to the extension guide to the box guide surface thickness,
And the amount of protrusion of the cutting edge from the copying tool is taken as the box cut surface thickness,
The box cutting method according to claim 7, wherein the box is cut. 9. A box cutting method for cutting a top surface of a box using the box cutting device according to any one of claims 2 to 6, wherein the top surface of the box is cut in a process of transporting the box. A cutting step of cutting a side located on one side of both sides along the transport path of the box, and turning the box on the transport path and cutting the next of the sides on the top surface of the box Having a turning step of positioning a power side on the one side along the transport path of the box, repeating the cutting step and the turning step, and sequentially cutting any side on the top surface of the box A box cutting method characterized by the following. 10. The method according to claim 9, wherein after turning the box in the turning step, the box is brought into contact with a stopper to adjust the turning posture of the box.
The box cutting method described. 11. A box cutting facility for carrying out the box cutting method according to claim 9, wherein a plurality of box cutting devices are sequentially arranged on the one side along a box transport path, Box cutting equipment characterized in that a box turning device is arranged between adjacent box cutting devices. 12. The box cutting equipment according to claim 11, wherein the turning device includes a posture regulating stopper for adjusting a turning posture of the turned box.