JP6986938B2 - Packing equipment - Google Patents

Description

The present invention relates to a technique for cutting out a corrugated cardboard sheet of an appropriate length from a long corrugated cardboard material and packing the packaged object.

Conventionally, at a work site where packed items are packed with cardboard, a large number of folded cardboard boxes are prepared in advance, and a worker unfolds them and assembles them into a box, and puts the packed items and cushioning material inside. , The work of fixing the tape was repeated. In addition, when packed items of different sizes and shapes are mixed, a plurality of types of folded cardboard boxes of different sizes are prepared, and the worker selects the one according to the size of the packed items.

For a folded cardboard box, the unfolded shape of the corrugated cardboard of the desired size is cut out from a standard rectangular plate-shaped corrugated cardboard sheet (blank sheet), and after processing such as scoring and grooving, the joint margin is glued or stapled. Manufactured by fixing. However, when it is desired to manufacture corrugated cardboard boxes of different sizes, if the developed shapes of the corrugated cardboard boxes of various sizes are cut out from a standard corrugated cardboard sheet, the waste of cutting out becomes large.

Therefore, a long corrugated cardboard material is manufactured in advance and rolled into a roll shape (in the case of a single-sided corrugated cardboard material), or folded in a bellows shape and stacked vertically (in the case of a double-sided corrugated cardboard material). Then, pull out the end of the cardboard by the required length (the length according to the developed shape of the cardboard box you want to manufacture), cut out the cardboard sheet according to the size of the cardboard box, and then cut out the cardboard box. An apparatus for manufacturing has been proposed (for example, Patent Document 1).

International Publication No. 2014/11439

In such a device, a long corrugated cardboard material (long corrugated cardboard material roll / long corrugated cardboard material stack) in a wound or folded state is pulled out by a pair of drawer rollers, and the drawn long corrugated cardboard material is specified. It is transported along the transport path of. Then, for the long corrugated cardboard material transported through the transport path, one box of corrugated cardboard sheet is cut out, lined or grooved, assembled into a box shape, packed in a box, taped, and so on. A series of processes such as are performed.

Since various processing sections are provided on the transport path, if a problem occurs in any of the processing sections, the transport of the long corrugated cardboard material is temporarily stopped. However, if the transport speed is increased in order to improve work efficiency, the acceleration when the long corrugated cardboard material is stopped increases, and the long corrugated cardboard material tends to jam (paper jam) on the inlet side of the pair of drawer rollers. There is.

In addition, when cutting, scoring, grooving, etc. in the lateral direction (direction orthogonal to the transport direction) of the long corrugated cardboard material transported in the transport path, in order to perform these operations accurately. It is effective to stop the transportation of long corrugated cardboard material. However, in this case, the transportation of the long corrugated cardboard material is intermittently stopped, and the above-mentioned jam may occur frequently.

The present invention has been made in view of the above problems, and a long corrugated cardboard material wound in a roll shape or folded and stacked vertically is pulled out by a drawer roller and conveyed along a transport path. The purpose of this is to provide a technology that can reduce the occurrence of jam in the drawer roller.

The packing device according to the present invention made to solve the above problems is
A long corrugated board material roll made by winding one long corrugated cardboard material or a long corrugated cardboard material drawn from a long corrugated cardboard material stack made by folding one long corrugated cardboard material and stacking it up and down. A transport unit that transports along a transport path provided at a position higher than the upper end of the corrugated board material roll / long corrugated board material stack.
A pair of drawer rollers provided at the front of the transport path,
A cutting portion for cutting out a corrugated cardboard sheet by cutting the long corrugated cardboard material transported through the transport path to a predetermined length.
A processing portion that performs at least one of ruled line addition and grooving on the long corrugated board material or the corrugated cardboard sheet to be conveyed along the transport path.
A packing unit for packing the object to be packed with the corrugated cardboard sheet transported through the transport path, and a packing unit.
To prepare for.

Here, the upstream side in the transport direction in the transport path is referred to as the "front side".

According to this configuration, the transport path for transporting the long corrugated board material is provided at a position higher than the upper end of the long corrugated board material roll / long corrugated board material stack, so that the long corrugated board material roll / long corrugated board material stack is provided. Due to its own weight, tension is constantly applied to the long cardboard material on the upstream side (long corrugated cardboard material roll / long corrugated cardboard material stack side) of the pair of drawer rollers. Therefore, when the transport of the long cardboard material by the transport section is stopped, jamming of the long cardboard material is suppressed on the inlet side of the pair of drawer rollers, and the long cardboard material can be smoothly transported. It will be possible. In addition, since chips generated in the processed part can be dropped by its own weight to the same height position (level) as the long corrugated cardboard material roll / long corrugated cardboard material stack, the material (long corrugated cardboard material roll / length) can be dropped. The corrugated cardboard material stack) and waste (chips) can be processed at the same level, improving workability. Further, by naturally dropping the package created in the packaging section with a chute or the like, the package can be handled at the same level. Further, at that time, by providing a plurality of chute paths, it is possible to sort different types of packages.

Either the cut-out portion or the processed portion may be provided on the upstream side of the transport path. When the processed portion is provided on the upstream side of the cutout portion, the processing is performed before the cutting (that is, at least one of ruled line addition and grooving is performed on the long corrugated board material). On the contrary, when the processed portion is provided on the downstream side of the cutout portion, the processing is performed after the cutting (that is, at least one of ruled line addition and grooving is performed on the corrugated cardboard sheet).

Preferably, the packing device is
An inclined belt conveyor that raises the packaged object to a height higher than the transport path, and
The packaged material supply unit that supplies the pulled-up packaged material to the packaging unit,
Equipped with
At the lowest position of the inclined belt conveyor, one side in the width direction of the belt surface is lower than the other side.

According to this configuration, the packaged object placed on the belt surface under the inclined belt conveyor slides down across the belt surface and is aligned on one side in the width direction of the belt surface. That is, the packaged object can be aligned on one side of the belt surface without paying special attention when placing the packaged object on the belt surface.

Preferably, the packing device is
Size acquisition department, which acquires the size of the packaged item,
Equipped with
The cutout portion cuts the long corrugated cardboard material to a length corresponding to the size of the packaged object.
The processed portion performs at least one of ruled line addition and grooving at a position specified based on the size of the packaged object.
The packing portion places the packaged object on the flat corrugated cardboard sheet, and bends the corrugated cardboard sheet so as to wrap it according to the shape of the packaged object.

According to this configuration, since the corrugated cardboard sheet is cut out according to the size of the packaged object, there is no waste of cutting out. Further, since a ruled line or a groove is provided at a position in the surface of the corrugated cardboard sheet according to the size of the packaged object, when the packaged object is wrapped, there is almost no gap between the two. Therefore, the cushioning material for filling the gap becomes unnecessary (or less). Further, when the corrugated cardboard sheet is formed into a box shape in advance and the packaged object is packed therein, it is necessary to tape the corrugated cardboard sheet to maintain the box shape. Here, the flat corrugated cardboard sheet is formed into the shape of the packaged object. Since it is folded so as to wrap it together, such tape fixing is unnecessary.

Preferably, in the packing device,
The transport unit
A first transport unit that transports the long corrugated cardboard material drawn from the long corrugated cardboard material stack along a first transport path provided at a position higher than the upper end of the long corrugated cardboard material stack.
The long corrugated cardboard material drawn from the long corrugated cardboard material roll is provided at a position higher than the upper end of the long corrugated cardboard material roll, is orthogonal to the first transport path, and is the first transport at a predetermined confluence position. A second transport unit that transports along the second transport path that joins the route,
Equipped with
The pair of drawer rollers are provided on the front portion of the first transport path and the front portion of the second transport path, respectively.
The cutout portion and the processed portion are provided in the middle of the first transport path and in the middle of the second transport path, respectively.
The packing portion is provided at the confluence position.

According to this configuration, the long corrugated board material roll and the long corrugated board material drawn from the long corrugated board material stack can be selectively used to pack the packaged object. Typically, a double-sided corrugated board material is folded into a long corrugated board material stack, and a single-sided corrugated board material is rolled into a long corrugated board material roll. Therefore, for example, inexpensive single-sided corrugated cardboard is used for packing relatively lightweight and relatively small items to be packed, and high-strength double-sided cardboard is used for packing relatively heavy and relatively large items to be packed. By properly using the product, the cost required for packaging can be suppressed without impairing the protective function of the packaged object.

According to the present invention, the weight of the long corrugated cardboard material roll / long corrugated cardboard material stack constantly applies tension to the long cardboard material upstream of the pair of drawer rollers, so that the tension is constantly applied to the long cardboard material on the upstream side of the pair of drawer rollers. The occurrence of jam in long cardboard materials is suppressed.

The figure which shows typically the whole structure of the packing apparatus which concerns on 1st Embodiment. A view of the transport path from above. The figure which shows the structure of the inclined belt conveyor schematically. The figure for demonstrating the aspect which specifies the position of the line which should form the groove and the ruled line in the corrugated board sheet which consists of double-sided corrugated board. The figure for demonstrating the aspect of packing an object to be packed with a corrugated cardboard sheet made of double-sided corrugated cardboard. The figure which shows typically the whole structure of the packing apparatus which concerns on 2nd Embodiment. The figure which looked at the 1st transport path and the 2nd transport path from above. The figure which looked at the 1st transport path and the 2nd transport path from above. The figure for demonstrating the aspect which specifies the position of the line which should form the ruled line in the corrugated cardboard sheet made by single-sided corrugated board. The figure for demonstrating the aspect of packing an object to be packed with a corrugated cardboard sheet made of single-sided corrugated cardboard. The figure which shows the structure of the corrugated cardboard sheet which concerns on the modification. The figure which shows typically the whole structure of the packing apparatus which concerns on the modification. The figure which shows typically the whole structure of the packing apparatus which concerns on the modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It is needless to say that the present invention is not limited to the embodiments described below, and includes various aspects without departing from the spirit of the present invention.

<1. First Embodiment>
<1-1. Device configuration>
The configuration of the packing device according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram schematically showing the overall configuration of the packing device 100 according to the first embodiment. FIG. 2 is a view of the transport path 10 as viewed from above.

The packing device 100 is a device that cuts out a corrugated cardboard sheet D having an appropriate length from one long corrugated cardboard material LD and packs the packaged object P. In this embodiment, as the long corrugated cardboard material LD used for packing the packaged object P, one made of double-sided corrugated cardboard is used. The long corrugated cardboard material LD made of double-sided corrugated cardboard is a state (long corrugated cardboard material stack) LDS that is folded and stacked vertically, and is drawn out from the LDS and used.

The packing device 100 includes a transport unit 1, a pair of drawer rollers 2 and 2, a cutting unit 3, a processing unit 4, an inclined belt conveyor 5, a packaged object supply unit 6, a size acquisition unit 7, and packaging. A unit 8 is provided. Further, the packing device 100 includes a control unit 9 that controls each of these units. Each portion 1, 4, 6 to 8 except for a part of the inclined belt conveyor 5 is housed in a housing 102 supported at a predetermined height by a leg portion 101 erected on the floor surface.

<Transport unit 1>
The transport unit 1 transports the long corrugated cardboard material LD drawn from the long corrugated cardboard material stack LDS along the transport path 10. However, the transport path 10 is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS.

Specifically, the transport unit 1 is wound around a plurality of transport rollers 11 arranged in a row at a position higher than the upper end of the long corrugated cardboard material stack LDS and a group of transport rollers 11. It includes a belt 12 and a drive unit (not shown) that rotates a group of transport rollers 11 in synchronization with each other. Each transport roller 11 is supported in a horizontal posture with its axial direction orthogonal to the arrangement direction. Further, the length of each transport roller 11 in the axial direction and the width of the belt 12 are both slightly larger than the width of the long corrugated cardboard material LD.

In this configuration, when the drive unit rotates a group of transport rollers 11 in response to an instruction from the control unit 9, the long corrugated cardboard material LD (and the corrugated cardboard sheet D cut out from the corrugated cardboard sheet D) on the belt 12 rides on the belt 12. Will be transported. That is, in this configuration, the upper surface of the belt 12 forms the transport path 10.

Here, since the transport path 10 is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS, a space is created below the transport path 10. The space collects the installation location 103 of the long corrugated cardboard material stack LDS, which is the supply source of the long corrugated cardboard material LD, the installation location of the spare long corrugated cardboard material stack LDS, and the chips generated in the cutout portion 3 and the processing portion 4. It is used as an installation place for the chip accommodating portion 104 to be accommodated (or incinerated).

In the following description, the "front-back direction" is a direction along the transport path 10, "front" refers to the upstream side of the transport path 10, and "rear" refers to the downstream side of the transport path 10. Further, the "left-right direction" is a horizontal direction orthogonal to the "front-back direction". The "vertical direction" is the vertical direction.

<Pair of drawer rollers 2 and 2>
The pair of drawer rollers 2 and 2 are provided at the front portion of the transport path 10. An installation location 103 for installing the long corrugated cardboard material stack LDS is provided on the floor surface diagonally below and in front of the transport path 10, and the pair of drawer rollers 2 and 2 are the lengths installed at the installation location 103. It is placed higher than the upper end of the corrugated board material stack LDS and at the same position as or lower than the transport path 10.

Each drawer roller 2 is supported in a horizontal posture with its axial direction along the left-right direction. One drawer roller 2 is arranged diagonally above the front side of the other drawer roller 2 with a predetermined minute distance (a distance slightly smaller than the thickness of the long corrugated cardboard material LD) from the other drawer roller 2. Drawer. Further, the axial length of each transport roller 11 is slightly larger than the width of the long corrugated cardboard material LD. Further, a drive unit (not shown) is connected to the pair of drawer rollers 2 and 2 to rotate them in opposite directions and send out the long corrugated cardboard material LD to the rear side.

In this configuration, a pair of drawer rollers with the end of the long corrugated cardboard material LD drawn from the long corrugated cardboard material stack LDS installed at the installation location 103 sandwiched between the pair of drawer rollers 2 and 2. By rotating 2 and 2, the end portion of the long corrugated cardboard material LD is pulled out diagonally upward and backward, introduced into the transport path 10, and transported along the transport path 10. At the front end of the transport path 10, a pressing roller 21 is provided to hold the long corrugated cardboard material LD introduced here so as not to rise from the upper surface of the belt 12.

<Cutout part 3>
The cutting portion 3 is provided in the middle of the transport path 10, and cuts the long corrugated cardboard material LD transported through the transport path 10 to a predetermined length to cut out the corrugated cardboard sheet D.

Specifically, the cutting portion 3 includes a cutting blade 31 and an elevating mechanism 32 for raising and lowering the cutting blade 31. The cutting blade 31 is supported in a horizontal posture with its blade direction along the left-right direction. Further, the length of the cutting blade 31 in the blade direction is slightly larger than the width of the long corrugated cardboard material LD. The elevating mechanism 32 is electrically connected to the control unit 9, and elevates the cutting blade 31 in response to an instruction from the control unit 9.

As will be described later, the control unit 9 calculates the required size (front-back width) of the corrugated cardboard sheet D according to the size of the packaged object P acquired by the size acquisition unit 7. Then, the control unit 9 lowers the cutting blade 31 to the elevating mechanism 32 at the timing when the long corrugated cardboard material LD is pulled out by the calculated front-rear width, and cuts the long corrugated cardboard material LD. As a result, the corrugated cardboard sheet D corresponding to the size of the packaged object P is cut out. The cut out corrugated cardboard sheet D is transported to the downstream side of the transport path 10.

<Processing part 4>
The processing portion 4 is provided in the middle of the transport path 10 and behind (downstream side) the cutout portion 3, and at least one of ruled line addition and grooving is performed on the corrugated cardboard sheet D transported through the transport path 10.

Specifically, the processing unit 4 includes a cutting blade 41 and a drive mechanism 42 for moving the cutting blade 41 (specifically, a rotary drive mechanism for rotating the cutting blade 41 around a vertical axis, a cutting blade 41. It includes a horizontal drive mechanism for moving left and right, and an elevating drive mechanism for raising and lowering the cutting blade 41). The drive mechanism 42 is electrically connected to the control unit 9, and moves the cutting blade 41 in response to an instruction from the control unit 9.

The machined portion 4 further has a blade-shaped pressing blade 43 having a rounded tip (or having a flat tip) and a drive mechanism 44 (specifically, the pressing blade 43) for moving the pressing blade 43 vertically. It is configured to include a rotation drive mechanism that rotates around a vertical axis, a horizontal drive mechanism that moves the pressing blade 43 left and right, and an elevating drive mechanism that raises and lowers the pressing blade 43). The drive mechanism 44 is electrically connected to the control unit 9, and moves the pressing blade 43 in response to an instruction from the control unit 9.

As will be described later, the control unit 9 specifies the position of each line on the corrugated cardboard sheet D on which the groove (or / and the ruled line) should be formed, according to the size of the packaged object P acquired by the size acquisition unit 7. .. Then, the control unit 9 controls the drive mechanism 42 (specifically, the rotation drive mechanism) to match the extending direction of the cutting blade 41 with the angle of a predetermined line, and the drive mechanism 42 (specifically, the drive mechanism 42 (specifically). Controls the horizontal drive mechanism) to horizontally move the cutting blade 41 to a position corresponding to the line. Then, the drive mechanism 42 (specifically, the elevating drive mechanism) is controlled to lower the cutting blade 41 to form a groove at a position corresponding to the line. Similarly, the drive mechanism 44 (specifically, the rotary drive mechanism) is controlled to match the extending direction of the pressing blade 43 with the angle of a predetermined line, and the drive mechanism 44 (specifically, the horizontal drive mechanism) is used. ) Is controlled to horizontally move the pressing blade 43 to a position corresponding to the line. Then, the drive mechanism 44 (specifically, the elevating drive mechanism) is controlled to lower the pressing blade 43 to form a ruled line at a position corresponding to the line.

<Inclined belt conveyor 5>
The inclined belt conveyor 5 is a mechanism for pulling the packed object P to a height of 10 or more in the transport path. The configuration of the inclined belt conveyor 5 will be specifically described with reference to FIG. FIG. 3 is a diagram schematically showing the configuration of the inclined belt conveyor 5.

Specifically, the inclined belt conveyor 5 includes a plurality of conveyors 51, a belt 52 wound around a group of conveyors 51, and a drive unit (not shown) for synchronously rotating the group of conveyors 51. Consists of including. Here, a group of transport rollers 51 are arranged in a line in the front-rear direction with an interval along an oblique direction that increases toward the rear, and the height of the rearmost transport roller 51 is a long corrugated cardboard material stack LDS. It is considered to be higher than the upper end of.

Each transport roller 51 is supported in a posture in which its axial direction is along the left-right direction. Here, the transport rollers 51 other than the rearmost are supported in an oblique posture in which the left side is lower than the right side, and the angle of inclination (angle formed by the axial direction in the horizontal direction) θ is the transport roller 51 on the rear side. It is said to be as small as possible. Further, the rearmost transport roller 51 is supported in a horizontal posture.

In this configuration, when the drive unit rotates the group of transport rollers 51 in response to the instruction from the control unit 9, the packaged object P placed on the lower end of the belt 52 wound around the group of transport rollers 51 is generated. It is transported diagonally upward. Here, in the vicinity of the lower end, one side (here, the left side) in the width direction (left and right direction) of the upper surface (belt surface) of the belt 52 is lower than the other side (here, the right side). The belt surface is made of a relatively slippery material, and the packaged object P placed on the belt surface slides down so as to cross the belt surface from right to left and is aligned on the left side of the belt surface. .. Therefore, the worker or the like can align the packaged object P on one side (here, the left side) of the belt surface without paying special attention when placing the packaged object P on the belt surface. The inclined belt conveyor 5 is provided so that the end surface of the one side (the area to which the hatching is provided in FIG. 3) abuts on the wall or the like so that the packaged object P does not slide down from the one side of the belt 52. Has been done. Further, a plurality of ribs (protruding portions) 521 are formed on the belt 52 at intervals in the extending direction (front-back direction), and the packaged object P placed on the belt 52 is provided. It is designed so that it does not slide down.

<Package Supply Unit 6>
See FIG. 1 again. The packed material supply unit 6 conveys the packed material P pulled up by the inclined belt conveyor 5 along the packed material transport path 60 and supplies it to the packed material unit 8. However, the packaged object transport path 60 is provided at a position higher than the transport path 10.

Specifically, the packaged object supply unit 6 includes a plurality of transport rollers 61 arranged in a line in the front-rear direction at predetermined heights at intervals, and a belt 62 wound around a group of transport rollers 61. , A drive unit (not shown) for synchronously rotating a group of transport rollers 61. Each transport roller 61 is supported in a horizontal posture along its axial direction in the left-right direction.

In this configuration, when the drive unit rotates a group of transport rollers 61 in response to an instruction from the control unit 9, the packaged object P transferred onto the belt 62 is transported on the belt 62. That is, in this configuration, the upper surface of the belt 62 forms the packaged object transport path 60. Here, the transport roller 61 at the head of the packaged object supply unit 6 is provided adjacent to the transport roller 61 at the same height as the transport roller 51 at the end of the tilt belt conveyor 5, and is pulled up by the tilt belt conveyor 5. The packed object P is transferred onto the belt 62 as it is and transported to the rear.

An inclined plate (slide) 63 is provided on the rear side of the transport roller 61 at the rear end of the packaged object supply unit 6. The inclined plate 63 is a long flat plate-shaped member extending in the front-rear direction, and is arranged in a posture of inclining downward as it goes backward. The front end of the inclined plate 63 is arranged close to the rearmost conveying roller 61, so that the packaged object P conveyed on the belt 62 is directly transferred onto the inclined plate 63. .. On the other hand, the rear end of the inclined plate 63 is provided close to the packing portion 8 provided on the transport path 10, and the packed object P that has slid down the inclined plate 63 is supplied to the packing portion 8 as it is. ing.

Further, a delivery plate 64 is provided above the belt 62. The delivery plate 64 is a flat plate-shaped member whose upper end is rotatably supported by a rotation shaft extending to the left and right. When the delivery plate 64 is fixed in the upright posture (fixed state), the packaged object P on the belt 62 is caught by the delivery plate 64 and cannot move backward. Further, when the delivery plate 64 is set to be in a freely rotatable state (free state), this catching is released, and the packed object P is in a state of riding on the belt 12 and advancing backward. Switching between the fixed state and the free state is performed under the control of the control unit 9. That is, the state of the delivery plate 64 is switched at the timing instructed by the control unit 9, and the packaged object P is transmitted to the packing unit 8.

<Size acquisition unit 7>
The size acquisition unit 7 is arranged above the packaged object supply unit 6 and acquires the size of the packaged object P transported therein. Specifically, the size acquisition unit 7 includes, for example, a camera and an image processing unit realized by the control unit 9. In this configuration, the size of the packaged object P can be acquired by the camera taking an image of the packaged object P and the image processing unit analyzing the obtained imaging data. However, the configuration of the size acquisition unit 7 is not limited to this, and for example, the size of the packaged object P may be acquired by receiving an input of the size of the packaged object P from the user.

As will be described later, the control unit 9 calculates the size (front-back width) of the corrugated cardboard sheet D for packing the packaged object P according to the size of the packaged object P acquired by the size acquisition unit 7. Further, the position of the line on which the groove (or / and the ruled line) should be formed on the corrugated cardboard sheet D is specified.

<Packing section 8>
The packing unit 8 packs the packaged object P with the corrugated cardboard sheet D transported through the transport path 10. As described above, the packed material P is supplied to the packed material 8 from the packed material supply unit 6. The supplied packaged object P is placed on a flat corrugated cardboard sheet D transported on the transport path 10. When the packaged object P is placed, the packaging unit 8 bends the corrugated cardboard sheet D so as to wrap it according to the shape of the packaged object P. Specific aspects of the packaging will be described later.

<1-2. Mode of processing in control unit 9>
<I. Size of corrugated cardboard sheet D>
The control unit 9 calculates the size (front-back width) of the corrugated cardboard sheet D that packs the packaged object P according to the size of the packaged object P acquired by the size acquisition unit 7. A mode for calculating the front-rear width will be described with reference to FIG.

First, the control unit 9 defines a rectangular parallelepiped Pi inscribed by the packaged object P based on the size of the packaged object P acquired by the size acquisition unit 7, and has a length (front-rear width) X before and after the rectangular parallelepiped Pi. The left and right length (horizontal width) Y and the upper and lower length (vertical width) Z are calculated. Then, the control unit 9 specifies the front-rear width Dx of the corrugated cardboard sheet D based on the front-rear width X and the vertical width Z from the following equation (1).
Dx = (1/2 + 1 + 2/3) X + (1 + 1) Z ... Equation (1)

<Ii. Size of corrugated cardboard sheet D>
The control unit 9 determines the position of the line on which the groove (or / and the ruled line) should be formed in the corrugated cardboard sheet D for packing the packaged object P according to the size of the packaged object P acquired by the size acquisition unit 7. Identify. A mode for specifying the position of the line will be described with reference to FIG.

First, the control unit 9 sets a line extending to the left and right at a position forward by "(1/2) X" from the rear side of the corrugated cardboard sheet D as the first left and right line Ly1. Further, a line extending to the left and right at a position "Z" ahead of the first left and right line Ly1 is referred to as a second left and right line Ly2. Further, a line extending to the left and right at a position in front of the second left and right line Ly2 by "X" is referred to as a third left and right line Ly3. Further, a line extending to the left and right at a position "Z" ahead of the third left and right line Ly3 is referred to as a fourth left and right line Ly4.

Further, the control unit 9 is located on the right side by "(Dy-Y) / 2" from the left side of the corrugated cardboard sheet D, the line extending in the front-rear direction is the first front-rear line Lx1, and "((Dy-Y) / 2" from the right side of the corrugated cardboard sheet D. The line extending in the front-rear direction at the position on the left side of "Dy-Y) / 2" is referred to as the second front-rear line Lx2. However, "Dy" is a dimension of the left-right width of the long corrugated cardboard material LD, and is a predetermined fixed value.

Further, the control unit 9 starts from the intersection of the second left-right line Ly2 and the first front-rear line Lx1, and extends from there to the left front at an angle of 45 ° with the left-right direction as the first skew line Ls1. And. Further, the line extending forward to the right at an angle of 45 ° with the left-right direction from the intersection of the second left-right line Ly2 and the second front-rear line Lx2 is referred to as the second diagonal line Ls2. Further, the line extending to the left rear at an angle of 45 ° with the left-right direction from the intersection of the third left-right line Ly3 and the first front-rear line Lx1 is referred to as the third oblique line Ls3. Further, the line extending to the right rear at an angle of 45 ° with the left-right direction from the intersection of the third left-right line Ly3 and the second front-rear line Lx2 is referred to as the fourth skew line Ls4.

The control unit 9 uses the first front-rear line Lx1 and the second front-rear line Lx2 as lines to form a ruled line among the group of lines Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4 defined in the above embodiment. Further, among the first to fourth left and right lines Ly1 to Ly4, the line portion inside the front and rear lines Lx1 and Lx2 is the line on which the ruled line should be formed, and the outer line portion is the line on which the groove should be formed. .. Further, each diagonal line Ls1 to Ls4 is set as a line on which a groove should be formed.

<Iii. Packaging mode>
The control unit 9 controls the packing unit 8 and is covered with a corrugated cardboard sheet D having a ruled line or a groove formed at a position corresponding to each line Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4 defined in the above embodiment. Have the package P packed. The packaging mode will be described with reference to FIGS. 4 and 5.

First, the packaged object P is placed at a predetermined position on the corrugated cardboard sheet D. Specifically, the packaged object P is arranged in the area surrounded by the ruled lines of the first front-rear line Lx1, the second left-right line Ly2, the second front-rear line Lx2, and the third left-right line Ly3 (FIG. 4). .. The alignment of the packaged object P can be performed by using, for example, a robot hand.

Subsequently, the corrugated cardboard sheet D is bent upward along the ruled line of the third left and right line Ly3, and further bent backward along the ruled line of the fourth left and right line Ly4 (FIG. 5A). The corrugated cardboard sheet D can be bent by using, for example, a robot hand. After that, the corrugated cardboard sheet D is bent upward along the ruled line of the second left and right line Ly2, and further bent forward along the ruled line of the first left and right line Ly1 (FIG. 5B). As a result, the front end portion and the rear end portion of the corrugated cardboard sheet D are overlapped on the upper surface of the packaged object P. Since the first left and right line Ly1 is located at a position separated by "(1/2) X" from the rear side of the corrugated cardboard sheet D, the rear side of the corrugated cardboard sheet D is arranged at the center of the front and rear of the packaged object P at this time. Will be.

Subsequently, each flap portion F1 extending along the rear surface of the packed object P and each flap portion F2 extending along the front surface of the packed object P are formed along the left surface (or right surface) of the packed object P. And fold it. Further, each flap portion F3 extending along the upper surface of the packaged object P is bent along the left surface (or right surface) of the packaged object P (FIG. 5 (c)). After that, each flap portion F4 extending along the lower surface of the packaged object P is bent along the left surface (or right surface) of the packaged object P (FIG. 5 (d)).

Subsequently, the tape T is attached to the center of the front and rear of the packaged object P along the left and right sides (FIG. 5 (e)). The end portion of the tape T is attached to the flap portion F4 bent upward. Since the flap portion F4 has a trapezoidal shape whose width becomes narrower toward the tip, it can be sufficiently fixed with only one tape stopper at the center of the front and rear. Further, when the flap portion F4 has a rectangular shape, if only one place is fixed in the center of the front and rear, corner bends and the like may occur at both side portions protruding from the tape T, and the appearance may be deteriorated. The situation can be avoided. The tape T can be attached by using, for example, a robot hand. Further, before the tape T is attached, a cushioning material or the like may be filled in the gap between the packaged object P and the corrugated cardboard sheet D, if necessary.

By the above processing, the packed object P is in a state of being packed with the corrugated cardboard sheet D (packed object Q).

<1-3. Device operation>
The operation of the packing device 100 will be described with reference to FIGS. 1 to 5.

In the packing device 100, first, a worker installs a long corrugated cardboard material stack LDS at an installation location 103, and an end portion of the long corrugated cardboard material LD pulled out from the long corrugated cardboard material stack LDS is between a pair of drawer rollers 2 and 2. It is said that it is sandwiched between.

Upon receiving an instruction to start processing from the operator, the control unit 9 starts rotating the transfer roller 51 of the inclined belt conveyor 5 and the transfer roller 61 of the packaged material supply unit 6. In this state, when an operator or the like places the packed objects P one after another on the lower end of the belt 52 of the inclined belt conveyor 5, each packed object P is pulled up one after another diagonally upward on the belt 52. At the upper end of the belt 52, it is transferred onto the belt 62 of the packaged object supply unit 6 and conveyed rearward.

On the other hand, the size acquisition unit 7 acquires the size of each packaged object P that is conveyed one after another on the belt 62 of the packaged object transport unit 6. The control unit 9 should calculate the size (front-back width Dx) of the corrugated cardboard sheet D for packing the corrugated cardboard sheet P based on the acquired size, and further form grooves and ruled lines in the corrugated cardboard sheet D. The positions of the lines Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4 are specified.

On the other hand, the control unit 9 starts the transportation of the long corrugated cardboard material LD at the same time as the transportation of the packaged object P starts. That is, the pair of drawer rollers 2 and 2 and the group of transport rollers 11 of the transport unit 1 are started to rotate. As a result, the long corrugated cardboard material LD drawn out from the long corrugated cardboard material stack LDS is carried backward on the belt 12. Here, since the transport path 10 is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS, the weight of the long corrugated cardboard material stack LDS causes the upstream side (front side) of the pair of drawer rollers 2 and 2. Tension is always applied to the long cardboard material LD. Therefore, when the transport of the long cardboard material LD by the transport unit 1 is stopped, it is suppressed that the long cardboard material LD is jammed on the inlet side of the pair of drawer rollers 2 and 2, and the long cardboard material is prevented from jamming. Smooth transport of LD is possible.

Then, the control unit 9 controls the cutting unit 3 to cut out the corrugated cardboard sheet D having the front-rear width Dx calculated earlier from the long corrugated cardboard material LD. Further, the control unit 9 controls the processing unit 4 to form a groove or a ruled line in each of the previously specified lines Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4.

On the other hand, the control unit 9 controls the delivery plate 64 provided above the belt 62 of the packaged object transport unit 6 to pack the packaged object P at a predetermined timing (that is, the packaged object P is packed). At the timing when the corrugated cardboard sheet D is sent to the packing section 8), the corrugated cardboard sheet D is supplied to the packing section 8. As a result, in the packing unit 8, the packaged object P to be packed is placed on the corrugated cardboard sheet D.

When the packaged object P is placed on the corrugated cardboard sheet D, the packing unit 8 bends the corrugated cardboard sheet D so as to wrap it according to the shape of the packaged object P. As a result, the packed object P is in a state of being packed with corrugated cardboard (packed item Q).

The package Q obtained in the package 8 is conveyed further rearward on the belt 12, and is naturally dropped by a chute 105 provided at the rear end of the transfer path 10. It should be noted that a plurality of paths for the chute 105 may be provided to distribute different types of packaged items Q.

<2. 2nd Embodiment>
<2-1. Device configuration>
The configuration of the packing device according to the second embodiment will be described with reference to FIGS. 6 to 8. FIG. 6 is a diagram schematically showing the overall configuration of the packing device 200 according to the second embodiment. 7 and 8 are views of the first transport path 10a and the second transport path 10b as viewed from above. In the following description, the same elements as those described in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Similar to the packing device 100 according to the first embodiment, the packing device 200 is a device that cuts out a corrugated cardboard sheet D having an appropriate length from one long corrugated cardboard material LD and packs the packaged object P. In this embodiment, as the long corrugated cardboard material LD used for packing the packaged object P, one made of double-sided corrugated cardboard and one made of single-sided corrugated cardboard can be selected and used. As described above, the long corrugated cardboard material LD made of double-sided corrugated cardboard is in a state of being folded and stacked vertically (long corrugated cardboard material stack) LDS, and is drawn out from the LDS and used. Further, the long corrugated cardboard material LD made of single-sided corrugated cardboard is in a wound state (long corrugated cardboard material roll) LDR, and is drawn out from the LDR for use.

The packing device 200 includes two transport units (first transport unit 1a and second transport unit 1b) and two sets of drawer rollers (first drawer rollers 2a, 2a and second drawer rollers 2b, 2b). , Two cutout portions (first cutout portion 3a and second cutout portion 3b) and two processing portions (first processing portion 4a and second processing portion 4b) are provided. Further, the packing device 200 includes an inclined belt conveyor 5, a packed object supply section 6, a size acquisition section 7, and a packing section 8. Further, the packing device 200 includes a control unit 9 that controls each of these units. Further, each part 1a, 1b, 2a, 2b, 3a, 3b, 4a, 4b, 6 to 8 except a part of the inclined belt conveyor 5 is supported to a predetermined height by the leg portions 101 erected on the floor surface. It is housed in the housing 102.

<First transport unit 1a>
The first transport unit 1a transports the long corrugated cardboard material LD drawn from the long corrugated cardboard material stack LDS along the transport path (first transport path) 10a. However, the first transport path 10a is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS.

The specific configuration of the first transport unit 1a is the same as that of the transport unit 1 according to the first embodiment. That is, the first transport unit 1a synchronizes a plurality of transport rollers 11a arranged at a position higher than the upper end of the long corrugated cardboard material stack LDS, a belt 12a wound around them, and a group of transport rollers 11a. The upper surface of the belt 12a forms the first transport path 10a.

In the following description, the "front-back direction" is the direction along the first transport path 10a, the "front" refers to the upstream side of the first transport path 10a, and the "rear" refers to the downstream side of the first transport path 10a. Point to. Further, the "left-right direction" is a horizontal direction orthogonal to the "front-back direction". The "vertical direction" is the vertical direction.

<First drawer rollers 2a, 2a>
The pair of drawer rollers (first drawer rollers) 2a, 2a are provided in the front portion of the first transport path 10a. An installation place 103 for installing the long corrugated cardboard material stack LDS is provided on the floor surface diagonally lower and front of the first transport path 10a, and the pair of drawer rollers 2a and 2a are installed at the installation place 103. The end portion of the long corrugated cardboard material stack LDS is pulled out diagonally upward and backward and introduced into the first transport path 10a. The specific configuration of the pair of drawer rollers 2a and 2a is the same as that of the pair of drawer rollers 2 and 2 according to the first embodiment. Further, at the front end of the first transport path 10a, a pressing roller 21a for pressing the long corrugated cardboard material LD introduced therein so as not to rise from the upper surface of the belt 12a is provided.

<1st cutout portion 3a and 1st processing portion 4a>
The first cutting portion 3a and the first processing portion 4a are provided in the middle of the first transport path 10a. The specific configuration of the first cutout portion 3a and the first processed portion 4a is the same as that of the cutout portion 3 and the processed portion 4 according to the first embodiment.

<Second transport unit 1b>
The second transport unit 1b transports the long corrugated cardboard material LD drawn from the long corrugated cardboard material roll LDR along the transport path (second transport path) 10b. However, the second transport path 10b is provided at a position higher than the upper end of the long corrugated cardboard material roll LDR and at a height substantially equal to the first transport path 10a. Further, the second transport path 10b is provided orthogonal to the first transport path 10a (that is, extends to the left and right), and merges with the first transport path 10a at the arrangement position of the packing portion 8. That is, the packing unit 8 is provided at the confluence position of the first transport path 10a and the second transport path 10b. In the example of the figure, the second transport path 10b is arranged on the right side of the first transport path 10a, and in this case, the transport direction of the second transport path 10b is from the right side to the left side. That is, the upstream side of the second transport path 10b in the transport direction is on the right, and the downstream side is on the left.

The specific configuration of the second transport path 10b is the same as that of the transport unit 1 according to the first embodiment. That is, the second transport path 10b simultaneously rotates a plurality of transport rollers arranged at a position higher than the upper end of the long corrugated cardboard material roll LDR, a belt 12b wound around them, and a group of transport rollers. It is configured to include a driving unit (not shown) to be driven, and the upper surface of the belt 12b forms the second transport path 10b.

<Second drawer rollers 2b, 2b>
The pair of drawer rollers (second drawer rollers) 2b, 2b are provided on the right side of the second transport path 10b. A support portion 106 that rotatably supports the shaft portion of the long corrugated cardboard material roll LDR is provided on the floor surface on the diagonally lower right side of the second transport path 10b, and the pair of drawer rollers 2b and 2b are provided. The end portion of the long corrugated cardboard material roll LDR supported by the support portion 106 is pulled out diagonally upward and to the left and introduced into the second transport path 10b. The specific configuration of the pair of drawer rollers 2b, 2b is the same as that of the pair of drawer rollers 2, 2 according to the first embodiment. Further, at the right end of the second transport path 10b, a holding roller 21b is provided to hold the long corrugated cardboard material LD introduced here so as not to rise from the upper surface of the belt 12b.

<Second cutout portion 3b and second processing portion 4b>
The second cutout portion 3b and the second processing portion 4b are provided in the middle of the second transport path 10b. The specific configurations of the second cutout portion 3b and the second processed portion 4b are the same as those of the cutout portion 3 and the processed portion 4 according to the first embodiment.

<2-2. Mode of processing in control unit 9>
<I. Size of corrugated cardboard sheet D>
The control unit 9 calculates the size (front-back width) of the corrugated cardboard sheet D that packs the packaged object P according to the size of the packaged object P acquired by the size acquisition unit 7. However, when the corrugated cardboard sheet D for packing the object to be packed P is made of double-sided corrugated cardboard, the front-rear width Dx of the corrugated cardboard sheet D is calculated in the same manner as in the first embodiment. On the other hand, when the corrugated cardboard sheet D for packing the object to be packed P is made of single-sided corrugated cardboard, the size (left-right width) of the corrugated cardboard sheet D is calculated in the following embodiment. A mode for calculating the left-right width will be described with reference to FIG.

First, the control unit 9 defines a rectangular parallelepiped Pi inscribed by the packaged object P based on the size of the packaged object P acquired by the size acquisition unit 7, and has a length (front-rear width) X before and after the rectangular parallelepiped Pi. The left and right length (horizontal width) Y and the upper and lower length (vertical width) Z are calculated. Then, the control unit 9 specifies the left-right width Dy of the corrugated cardboard sheet D based on the left-right width Y and the up-down width Z from the following equation (2). However, in the formula (2), "t" is the thickness of the corrugated cardboard sheet D.
Dy = Y + 2 (Z-2t) ・ ・ ・ Equation (2)

<Ii. Size of corrugated cardboard sheet D>
The control unit 9 specifies the position of the line on which the ruled line should be formed in the corrugated cardboard sheet D for packing the packaged object P according to the size of the packaged object P acquired by the size acquisition unit 7. A mode for specifying the position of the line will be described with reference to FIG.

First, the control unit 9 sets a line extending to the left and right at a position rearward by "(1/2) X" from the front side of the corrugated cardboard sheet D as the first left and right line My1. Further, a line extending to the left and right at a position behind the first left and right line My1 by "Z" is referred to as a second left and right line My2. Further, a line extending to the left and right at a position behind the second left and right line My2 by "X" is referred to as a third left and right line My3. Further, a line extending to the left and right at a position behind the third left and right line My3 by "Z" is referred to as a fourth left and right line My4.

Further, the control unit 9 is located on the left side of the corrugated cardboard sheet D by "Z-2t", the line extending in the front-rear direction is the first front-rear line Mx1, and only "Z-2t" from the left side of the corrugated cardboard sheet D. At the position on the right side, the line extending back and forth is referred to as the second front and back line Mx2.

Further, the control unit 9 starts from each of the intersection of the first left and right line My1 and the first front and rear line Mx1 and the intersection of the third left and right line My3 and the first front and rear line Mx1 as a starting point, and is 45 ° to the left and right from there. Each line that forms an angle and extends forward to the right is referred to as a first skew line Ms1. Further, starting from each of the intersection of the first left and right line My1 and the second front and rear line Mx2 and the intersection of the third left and right line My3 and the second front and rear line Mx2, an angle of 45 ° with the left and right direction is formed from there. Each line extending to the left front is also referred to as the first skew line Ms1.

Further, starting from each of the intersection of the second left and right line My2 and the first front and rear line Mx1 and the intersection of the fourth left and right line My4 and the first front and rear line Mx1, an angle of 45 ° with the left and right direction is formed from there. Each line extending to the right rear is referred to as a second skew line Ms2. Further, starting from each of the intersection of the second left and right line My2 and the second front and rear line Mx2 and the intersection of the fourth left and right line My4 and the second front and rear line Mx2, an angle of 45 ° with the left and right direction is formed from there. Each line extending to the left rear is also referred to as a second skew line Ms2.

Further, starting from a point on the right side of the corrugated cardboard sheet D that is "X- (Z-2t)" behind the intersection of the fourth left and right lines My4, and forming an angle of 45 ° from that point in the left-right direction, the left rear The line extending to is referred to as the third skew line Ms3. In addition, starting from a point on the left side of the corrugated cardboard sheet D that is "X- (Z-2t)" behind the intersection of the fourth left and right lines My4, an angle of 45 ° with the left and right direction is formed from there to the right rear. The line extending to is also the third skew line Ms3.

The control unit 9 uses all of the group of lines My1 to My4, Mx1, Mx2, Ms1 to Ms3 defined in the above embodiment as lines to form a ruled line. That is, in this case, no groove is formed.

<Iii. Packaging mode>
The control unit 9 controls the packing unit 8 to be a corrugated cardboard sheet D formed at a position corresponding to each line My1 to My4, Mx1, Mx2, Ms1 to Ms3 defined in the above embodiment. Have P packed. The packaging mode will be described with reference to FIGS. 9 and 10.

First, the packaged object P is placed at a predetermined position on the corrugated cardboard sheet D. Specifically, the packaged object P is arranged in a region surrounded by the first front / rear line Mx1, the second left / right line My2, the second front / rear line Mx2, and the third left / right line My3 (FIG. 9). The alignment of the packaged object P can be performed by using, for example, a robot hand.

Subsequently, the corrugated cardboard sheet D is bent upward along the ruled line of the third left and right line My3, and further bent forward along the ruled line of the fourth left and right line My4 (FIG. 10A). The corrugated cardboard sheet D can be bent by using, for example, a robot hand. After that, the corrugated cardboard sheet D is bent upward along the ruled line of the second left and right line My2, and further bent backward along the ruled line of the first left and right line My1 (FIG. 10B). As a result, the front end portion and the rear end portion of the corrugated cardboard sheet D are overlapped on the upper surface of the packaged object P. Since the first left and right line My1 is located at a position separated by "(1/2) X" from the front side of the corrugated cardboard sheet D, the front side of the corrugated cardboard sheet D is arranged at the center of the front and rear of the packaged object P at this time. Will be.

Subsequently, the ruled lines of the diagonal lines Ms1, Ms2, and Ms3 are folded in a mountain shape, and each flap portion F1 extending along the front surface of the packed object P and extending along the rear surface of the packed object P are each extended. The flap portion F2 is bent along the left side (or right side) of the packaged object P (FIG. 10 (c)). However, in the state of FIG. 10B, the end point of the third diagonal line Ms3 is "X- (Z-2t)" ahead of the fourth left and right line My4 (that is, ahead of the first left and right line My1). It is located behind by "(Z-2t)") and coincides with the end point of the first skew line Ms1. That is, the ruled lines of the first skew line Ms1 and the ruled lines of the third skew line Ms3 formed on the front end portion and the rear end portion of the corrugated cardboard sheet D overlapped on the upper surface of the packed object P are in an overlapping state. It is folded in a mountain at a time.

Subsequently, each flap portion F3 extending along the upper surface of the packed object P is bent along the left side (or right side) of the packed object P, and then each extending along the lower surface of the packed object P. The flap portion F4 is bent along the left side (or right side) of the packaged object P (FIG. 10 (d)).

Subsequently, the tape T is attached to the center of the front and rear of the packaged object P along the left and right sides (FIG. 10 (e)). The end portion of the tape T is attached to the flap portion F4 bent upward. Since the flap portion F4 has a trapezoidal shape whose width becomes narrower toward the tip, it can be sufficiently fixed with only one tape stopper at the center of the front and rear. In addition, it is possible to avoid the possibility that corner bends or the like may occur at the portions on both sides protruding from the tape T and the appearance may be deteriorated. The tape T can be attached by using, for example, a robot hand. Further, before the tape T is attached, a cushioning material or the like may be filled in the gap between the packaged object P and the corrugated cardboard sheet D, if necessary.

By the above processing, the packed object P is in a state of being packed with the corrugated cardboard sheet D (packed object Q).

<2-3. Device operation>
The operation of the packing device 200 will be described with reference to FIGS. 6 to 10.

In the packing device 200, first, the operator installs a long corrugated cardboard material stack LDS at the installation location 103, and the end of the long corrugated cardboard material LD drawn from the long corrugated cardboard material stack LDS is a pair of drawer rollers (first drawer roller). )) It is in a state of being sandwiched between 2a and 2a. Further, the operator installs a long corrugated cardboard material roll LDR on the support portion 106, and the end portion of the long corrugated cardboard material LD drawn from the long corrugated cardboard material roll LDR is between a pair of drawer rollers (second drawer rollers) 2b and 2b. It is said that it is sandwiched between.

Upon receiving an instruction to start processing from the operator, the control unit 9 starts rotating the transfer roller 51 of the inclined belt conveyor 5 and the transfer roller 61 of the packaged material supply unit 6 as in the first embodiment. In this state, when an operator or the like places the packed objects P one after another on the lower end of the belt 52 of the inclined belt conveyor 5, each packed object P is pulled up one after another diagonally upward on the belt 52. At the upper end of the belt 52, it is transferred onto the belt 62 of the packaged object transport unit 6 and is conveyed rearward.

On the other hand, the size acquisition unit 7 acquires the size of each packaged object P that is conveyed one after another on the belt 62 of the packaged object transport unit 6. Based on the acquired size, the control unit 9 determines whether the packaged object P should be packed with double-sided corrugated cardboard or single-sided corrugated cardboard. For example, when the longest side of the rectangular parallelepiped Pi inscribed by the object to be packed P is smaller than a predetermined threshold value, it is determined that the package should be packed with single-sided corrugated cardboard, and in other cases, it is determined that the package should be packed with double-sided corrugated cardboard.

When it is determined that the packed object P should be packed with double-sided corrugated cardboard, the control unit 9 determines the size (front-back width Dx) of the corrugated cardboard sheet D for packing the packed object P in the embodiment described in the first embodiment. Along with the calculation, the positions of the lines Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4 on which the grooves and ruled lines should be formed on the corrugated cardboard sheet D are specified (see FIG. 4).

Further, in this case, the control unit 9 rotates the transport rollers 11a, which is a group of the first drawer rollers 2a and 2a and the first transport unit 1a. As a result, the long corrugated cardboard material LD (that is, the long corrugated cardboard material LD made of double-sided corrugated cardboard) drawn from the long corrugated cardboard material stack LDS is carried backward on the belt 12a (FIG. 7). Again, since the first transport path 10a is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS, a pair of drawers is drawn when the transport of the long cardboard material LD by the first transport portion 1a is stopped. Jam of the long cardboard material LD is suppressed on the inlet side of the rollers 2a and 2a, and the long cardboard material LD can be smoothly conveyed.

Then, the control unit 9 controls the first cutting unit 3a to cut out the corrugated cardboard sheet D having the front-rear width Dx calculated earlier from the long corrugated cardboard material LD. Further, the control unit 9 controls the first processing unit 4a to form a groove or a ruled line in each of the previously specified lines Ly1 to Ly4, Lx1, Lx2, Ls1 to Ls4.

On the other hand, when it is determined that the packed object P should be packed with single-sided corrugated cardboard, the control unit 9 calculates the size (left-right width Dy) of the corrugated cardboard sheet D for packing the packed object P in the above-described manner. , The positions of the lines My1 to My4, Mx1, Mx2, Ms1 to Ms3 on which the ruled lines should be formed on the corrugated cardboard sheet D are specified (FIG. 9).

Further, in this case, the control unit 9 rotates a group of transport rollers of the second drawer rollers 2b and 2b and the second transport unit 1b. As a result, the long corrugated cardboard material LD (that is, the long corrugated cardboard material LD made of single-sided corrugated cardboard) drawn from the long corrugated cardboard material roll LDR is conveyed to the left on the belt 12b (FIG. 8). Again, since the second transport path 10b is provided at a position higher than the upper end of the long corrugated cardboard material roll LDR, a pair of drawers is drawn when the transport of the long cardboard material LD by the second transport portion 1b is stopped. Jam of the long cardboard material LD is suppressed on the inlet side of the rollers 2b and 2b, and the long cardboard material LD can be smoothly conveyed.

Then, the control unit 9 controls the second cutting unit 3b to cut out the corrugated cardboard sheet D having the left-right width Dy calculated earlier from the long corrugated cardboard material LD. Further, the control unit 9 controls the second processing unit 4b to form a ruled line on each of the previously specified lines My1 to My4, Mx1, Mx2, Ms1 to Ms3.

By such processing, a corrugated cardboard sheet D made of double-sided corrugated cardboard transported through the first transport path 10a or a corrugated cardboard sheet D made of single-sided corrugated cardboard conveyed through the second transport path 10b is sequentially provided in the packing unit 8. Will be transported. The control unit 9 controls the delivery plate 64 provided above the belt 62 of the packaged object transport unit 6 to pack the packaged object P at a predetermined timing (that is, a corrugated cardboard sheet for packing the packaged object P). It is supplied to the packing unit 8 at the timing (timing when D is sent to the packing unit 8). As a result, in the packing unit 8, the packaged object P to be packed is placed on the corrugated cardboard sheet D.

When the packaged object P is placed on the corrugated cardboard sheet D, the packing unit 8 bends the corrugated cardboard sheet D so as to wrap it according to the shape of the packaged object P. When the corrugated cardboard sheet D is made of double-sided corrugated cardboard, the packaged object P is packed in the manner described in the first embodiment (see FIG. 5). On the other hand, when the corrugated cardboard sheet D is made of single-sided corrugated cardboard, the packaged object P is packed in the above-described manner (FIG. 10). As a result, the packed object P is in a state of being packed with corrugated cardboard (packed item Q).

The package Q obtained by the packing section 8 is transported to the rear on the belt 12a of the first transport section 1a, and is naturally dropped by a chute 105 provided at the rear end of the first transport path 10a. It should be noted that a plurality of paths for the chute 105 may be provided to distribute different types of packaged items Q.

<3. Other embodiments>
In the second processed portion 4b according to the second embodiment, a triangular region surrounded by the diagonal lines Ms1, Ms2, Ms3, the left and right lines My1 to My4, and the left side (or right side) of the corrugated cardboard sheet D (FIG. The area hatched in 11) may be crushed with a pressing tool or the like to make the thickness smaller than the other areas. Alternatively, a line portion surrounding the triangular region may be formed by a groove and the region may be cut off. According to each of these configurations, when the packaged object P is packed with the corrugated cardboard sheet D, the corrugated cardboard sheet D can be easily bent.

In the packing devices 100 and 200 according to each of the above embodiments, the long corrugated cardboard material stack LDS (or / and the long corrugated cardboard material roll LDR) is arranged on the floor surface, and the transport path 10 (first transport path 10a) is arranged. And the second transport path 10b) was provided at a position higher than the floor surface, but as in the packing device 300 shown in FIG. 12, the long corrugated cardboard material stack LDS (or / and the long corrugated cardboard material roll LDR). May be arranged at a position lower than the floor surface (for example, underground), and the transport path 10 (first transport path 10a and second transport path 10b) may be provided on the floor surface.

In the packing device 100 according to the first embodiment, as the long corrugated cardboard material LD used for packing the packed object P, one made of single-sided corrugated cardboard may be used. FIG. 13 schematically shows the overall configuration of the packing device 400 according to this modification. As shown here, in the packing device 400, a support portion 106 for supporting the long corrugated cardboard material roll LDR is provided instead of the installation place 103 for installing the long corrugated cardboard material stack LDS. ..

In the first embodiment, the processing section 4 is provided in the middle of the transport path 10 and behind the cutting section 3 (downstream side), but the machining section 4 is in the middle of the transport path 10 and the cutting section 3 is provided. It may be provided in front of (upstream side) of. In this case, the processing portion 4 performs at least one of ruled line addition and grooving on the long corrugated board material LD transported through the transport path 10, and then the cutout portion 3 cuts out the corrugated cardboard sheet D. Similarly, in the second embodiment, the first processed portion 4a (second processed portion 4b) is in the middle of the first transport path 10a (second transport path 10b), and the first cut-out portion 3a (second cut-out portion) is used. It may be provided on the upstream side of 3b).

In the second embodiment, the control unit 9 determines whether the packaged object P should be packed with double-sided corrugated cardboard or single-sided corrugated cardboard based on the size of the packaged object P acquired by the size acquisition unit 7. However, the determination may be made based on, for example, the size and weight of the packaged object P. That is, for example, the packaged object supply unit 6 is provided with a weight measuring unit for measuring the weight of the packaged object P, and the longest side of the rectangular parallelepiped Pi inscribed by the packaged object P is smaller than a predetermined threshold value. When the weight of the object to be packed P is smaller than a predetermined threshold value, it may be determined that the package should be packed in single-sided corrugated cardboard, and in other cases, it may be determined that the packaged object P should be packed in double-sided corrugated cardboard. Alternatively, the determination may be made, for example, by receiving an instruction from an operator.

100, 200, 300, 400 ... Packing device 1 ... Transport section 10 ... Transport path 11 ... Transport roller 12 ... Belt 1a ... First transport section 1b ... Second transport section 10a ... First transport path 11a ... Transport roller 12a ... Belt 10b ... 2nd transport path 12b ... Belt 2 ... Pull-out roller 2a ... 1st pull-out roller 2b ... 2nd pull-out roller 3 ... Cut-out part 3a ... 1st cut-out part 3b ... 2nd cut-out part 4 ... Processing part 4a ... 1st processing Part 4b ... Second processing part 5 ... Inclined belt conveyor 6 ... Packaged object supply part 7 ... Size acquisition part 8 ... Packing part 9 ... Control unit D ... Corrugated cardboard sheet LD ... Long corrugated cardboard material LDR ... Long corrugated cardboard material roll LDS ... Long corrugated cardboard material stack P ... Packaged item Q ... Packaged item T ... Tape

Claims (3)

A long corrugated board material roll made by winding one long corrugated cardboard material or a long corrugated cardboard material drawn from a long corrugated cardboard material stack made by folding one long corrugated cardboard material and stacking it up and down. A transport unit that transports along a transport path provided at a position higher than the upper end of the corrugated board material roll / long corrugated board material stack.
A pair of drawer rollers provided at the front of the transport path,
A cutting portion for cutting out a corrugated cardboard sheet by cutting the long corrugated cardboard material transported through the transport path to a predetermined length.
A processing portion that performs at least one of ruled line addition and grooving on the long corrugated board material or the corrugated cardboard sheet to be conveyed along the transport path.
A packing unit for packing the object to be packed with the corrugated cardboard sheet transported through the transport path, and a packing unit.
An inclined belt conveyor that raises the packaged object to a height higher than the transport path, and
The packaged material supply unit that supplies the pulled-up packaged material to the packaging unit,
Equipped with
At the lowest position of the inclined belt conveyor, one side in the width direction of the belt surface is lower than the other side, and at the highest position of the inclined belt conveyor, one side and the other side in the width direction of the belt surface are at the same height. be,
Packing equipment. The packing device according to claim 1.
Size acquisition department, which acquires the size of the packaged item,
Equipped with
The cutout portion cuts the long corrugated cardboard material to a length corresponding to the size of the packaged object.
The processed portion performs at least one of ruled line addition and grooving at a position specified based on the size of the packaged object.
The packing portion places the packaged object on the flat corrugated cardboard sheet, and bends the corrugated cardboard sheet so as to wrap it according to the shape of the packaged object.
Packing equipment. The packing device according to claim 1 or 2.
The transport unit
A first transport unit that transports the long corrugated cardboard material drawn from the long corrugated cardboard material stack along a first transport path provided at a position higher than the upper end of the long corrugated cardboard material stack.
The long corrugated cardboard material drawn from the long corrugated cardboard material roll is provided at a position higher than the upper end of the long corrugated cardboard material roll, is orthogonal to the first transport path, and is the first transport at a predetermined confluence position. A second transport unit that transports along the second transport path that joins the route,
Equipped with
The pair of drawer rollers are provided on the front portion of the first transport path and the front portion of the second transport path, respectively.
The cutout portion and the processed portion are provided in the middle of the first transport path and in the middle of the second transport path, respectively.
The packing portion is provided at the confluence position.
Packing equipment.

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