JP2019093619A - Packing device - Google Patents

Abstract

To reduce the generation of jamming in a drawing roller when a long cardboard blank wound in a roll form or stacked vertically by folding is drawn with the drawing roller and transported along a transportation route.SOLUTION: A packing device 100 comprises a transportation part 1 that transports a long cardboard blank LD, drawn from a long cardboard blank stack LDS constituted by folding a sheet of cardboard blank LD to be stacked vertically, along a transportation route 10 provided at a position higher than the top end of the long cardboard blank stack LDS, a pair of drawing rollers 2, 2 provided in the front of the transportation route 10, a segmentation part 3 that cuts the long cardboard blank LD transported through the transportation route 10 to segment a cardboard sheet D, a processing part 4 that performs at least one of marking and groove cutting in the cardboard sheet D transported through the transportation route 10, and a packing part 8 that packs a packing object P with the cardboard sheet D transported through the transportation route 10.SELECTED DRAWING: Figure 1

Description

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

  Conventionally, at the work site for packing materials to be packed in cardboard boxes, a large number of folded corrugated cardboard boxes are prepared in advance, and the worker unfolds and assembles them into a box, and inserts the material to be packed and cushioning material in it. , I had to repeat the work of performing the tape stop. Moreover, when the to-be-packaged goods from which a size and a shape differ mix together, two or more types of corrugated cardboard boxes of the folding state from which a size differs were prepared, and the worker selected the thing according to the size of to-be-packaged goods.

  A folded cardboard box is obtained by cutting out the developed shape of a cardboard of a desired size from a fixed rectangular cardboard sheet (blank sheet), processing it such as scoring and grooving, bonding with splices and stapler Manufactured by fixing. However, when it is desired to manufacture cardboard boxes of different sizes, if the expanded shape of various sized cardboard boxes is cut out from a fixed-shaped corrugated sheet, the waste of cutting out increases.

  Therefore, a long cardboard material is manufactured in advance and wound into a roll (in the case of a single-sided cardboard material) or folded into a bellows and stacked vertically (in the case of a double-faced cardboard material) Take out the corrugated sheet according to the size of the cardboard box by pulling out the end by the necessary length (length according to the developed shape of the cardboard box to be manufactured) when necessary, and from this cardboard box An apparatus for manufacturing has been proposed (for example, Patent Document 1).

International Publication No. 2014/119439

  In such an apparatus, a long corrugated cardboard material roll (long corrugated cardboard material roll / long corrugated cardboard material stack) in a wound or folded state is drawn by a pair of drawing rollers, and the drawn long corrugated cardboard material is specified. Transport along the transport path of Then, with respect to the long corrugated cardboard material transported on the transport path, cutting out (cut), corrugating or grooving, assembling into a box shape, packing in a box to be packaged, packing a single piece of corrugated cardboard sheet for one box, And so on.

  Since various processing units are provided on the conveyance path, the conveyance of the long cardboard material is temporarily stopped if a problem occurs in any of the processing units. However, if the conveyance speed is increased to increase the work efficiency, the acceleration at the time of stopping the long cardboard material becomes large, and jamming (paper jam) of the long cardboard material tends to occur on the entrance side of the pair of drawing rollers. There is.

  In addition, in the case of cutting, scoring, grooving, etc. in the transverse direction (direction orthogonal to the transport direction), the long cardboard material transported on the transport path is to perform these operations correctly. It is effective to stop the transportation of the long cardboard material. However, in this case, the conveyance of the long 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 or folded and stacked vertically is drawn by a drawing roller and conveyed along a conveyance path. In this case, it is an object of the present invention to provide a technology capable of reducing the occurrence of jamming at the drawing roller.

The packing device according to the present invention, which was made to solve the above-mentioned problems, is:
The long corrugated cardboard material drawn from a long corrugated cardboard material stack formed by folding a long corrugated cardboard material roll formed by winding one long corrugated cardboard material or one long corrugated cardboard material is stacked, A transport unit configured to transport along a transport path provided at a position higher than the upper end of the large corrugated cardboard material roll / long corrugated cardboard material stack;
A pair of drawing rollers provided at the front of the transport path;
A cutout section for cutting out the long cardboard material transported on the transport path by a predetermined length to cut out a cardboard sheet;
A processing unit that applies at least one of a ruled line and a ditch to the long corrugated cardboard material or the corrugated cardboard sheet transported on the transport path;
A packing unit for packing an object to be packed with the corrugated cardboard sheet conveyed on the conveyance path;
Equipped with

  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 through which the long corrugated cardboard material is transported is provided at a position higher than the upper end of the long corrugated cardboard roll / long corrugated cardboard stack, so the long corrugated cardboard roll / long corrugated cardboard stack Due to its own weight, tension always acts on the long cardboard material upstream of the pair of drawing rollers (long cardboard material roll / long cardboard material stack side). Therefore, when the conveyance of the long cardboard material by the conveyance unit is stopped, the occurrence of jamming of the long cardboard material on the inlet side of the pair of drawing rollers is suppressed, and the smooth conveyance of the long cardboard material is performed. It becomes possible. In addition, since chips generated in the processing section can be dropped to the same height position (level) as the long corrugated cardboard roll / long corrugated cardboard stack, the material (long corrugated cardboard roll / long) Processing of corrugated cardboard material stacks and waste (chips) can be performed at the same level, and the workability is improved. Further, by naturally dropping the package created by the packaging unit with a chute or the like, the package can be handled at the same level. Furthermore, at that time, by providing a plurality of chute paths, it becomes possible to distribute different kinds of packages.

  Either the cutout part or the processing part may be provided on the upstream side of the transport path. If the processing section is provided upstream of the cutout section, processing is performed prior to the cutout (that is, at least one of the ruled line application and the groove cutting is performed on the long corrugated cardboard material). Conversely, if the processing section is provided downstream of the cutout section, processing is performed after the cutout (that is, at least one of the application of a ruled line and the grooving is performed on the corrugated cardboard sheet).

Preferably, the packing device
An inclined belt conveyor for pulling the object to be packed to a height above the transport path;
An item-to-be-packaged supply unit that supplies the pulled-out packaged object 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 objects placed on the belt surface on the lower side of the inclined belt conveyor slide down across the belt surface and are aligned on one side in the width direction of the belt surface. That is, without placing special attention when placing the object to be packaged on the belt surface, the object to be packaged can be aligned on one side of the belt surface.

Preferably, the packing device
Size acquisition unit, which acquires the size of the item to be packed
Equipped with
The cutout section cuts the long cardboard material at a length corresponding to the size of the item to be packaged,
The processing unit performs at least one of a ruled line application and a groove cutting at a position defined based on the size of the object to be packaged,
The packing section places the object to be packed on the planar corrugated cardboard sheet, and the corrugated sheet is folded so as to conform to the shape of the object to be packaged.

  According to this configuration, since the corrugated cardboard sheet is cut out in accordance with the size of the item to be packed, there is no waste of cutting out. Moreover, since a crease or a groove is provided at a position according to the size of the object to be packed in the surface of the cardboard sheet, when the object to be packaged is wrapped by this, a gap is hardly generated between the both. Therefore, no cushioning material is required (or reduced) to fill the gap. Furthermore, in the case where a cardboard sheet is packed in advance into a box shape, it is necessary to use a tape or the like for maintaining the box shape, but here, a flat cardboard sheet is formed into the shape of the package. Since it is put together and it bends to wrap this, such a tape stop becomes unnecessary.

Preferably, in the packing device,
The transport unit
A first transport unit configured to transport the long cardboard material drawn from the long cardboard material stack along a first transport path provided at a position higher than the upper end of the long cardboard material stack;
The long corrugated cardboard material drawn out from the long corrugated cardboard material roll is provided at a position higher than the upper end of the long corrugated cardboard material roll, and is orthogonal to the first conveying path and at the predetermined joining position. A second transport unit that transports along a second transport path joining the path;
Equipped with
The pair of drawing rollers are respectively provided at the front of the first conveyance path and at the front of the second conveyance path.
The cutout unit and the processing unit are respectively provided in the middle of the first conveyance path and in the middle of the second conveyance path.
The packing unit is provided at the joining position.

  According to this configuration, the to-be-packaged item can be packed by selectively using the long cardboard material which is respectively drawn out from the long cardboard material roll and the long cardboard material stack. Typically, it is a double-sided corrugated cardboard material that is folded into a long corrugated cardboard material stack, and a single-faced corrugated cardboard material that is wound into a long corrugated cardboard material roll. Therefore, for example, an inexpensive single-faced cardboard is used to pack relatively light weight, relatively small packages, and a high-strength double-sided cardboard is used to package relatively heavy, relatively large packages. By properly using the method, it is possible to reduce the cost required for packaging without impairing the protective function of the item to be packed.

  According to the invention, since the long cardboard material upstream of the pair of drawing rollers is always tensioned by the weight of the long cardboard material roll / the long cardboard material stack, the entrance side of the pair of drawing rollers can be used. It is suppressed that a jam of a long cardboard material arises.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows typically the whole structure of the packing apparatus which concerns on 1st Embodiment. The figure which looked at the conveyance way from upper direction. The figure which shows the structure of an inclination belt conveyor typically. The figure for demonstrating the aspect which pinpoints the position of the line which should form a groove | channel and a crease in the corrugated-cardboard sheet | seat which consists of a double-sided corrugated-cardboard. The figure for demonstrating the aspect which packs a to-be-packaged item in the corrugated-cardboard sheet | seat which consists of a double-sided corrugated board. The figure which shows typically the whole structure of the packing apparatus which concerns on 2nd Embodiment. The figure which looked at the 1st conveyance way and the 2nd conveyance way from the upper part. The figure which looked at the 1st conveyance way and the 2nd conveyance way from the upper part. The figure for demonstrating the aspect which pinpoints the position of the line which should form the ruled line in the corrugated-cardboard sheet | seat which consists of single-sided corrugated-cardboards. The figure for demonstrating the aspect which packs a to-be-packaged item in the corrugated-cardboard sheet | seat which consists of single-sided corrugated-cardboard. The figure which shows the structure of the corrugated-cardboard sheet which concerns on a modification. The figure which shows typically the whole structure of the packing apparatus which concerns on a modification. The figure which shows typically the whole structure of the packing apparatus which concerns on a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, and it goes without saying that various aspects are included without departing from the scope of the present invention.

<1. First embodiment>
<1-1. Device configuration>
The structure of the packing apparatus which concerns on 1st Embodiment is demonstrated, referring FIG. 1, FIG. FIG. 1: is a figure which shows typically the whole structure of the packing apparatus 100 which concerns on 1st Embodiment. FIG. 2 is a view of the conveyance path 10 as viewed from above.

  The packing apparatus 100 is an apparatus for packing a to-be-packaged article P by cutting out a corrugated sheet D having an appropriate length from a single long corrugated board material LD. In this embodiment, as the long corrugated cardboard material LD used for packing the to-be-packaged article P, one made of double-sided corrugated cardboard is used. The long cardboard material LD made of double-faced cardboard is folded and stacked up and down (long cardboard material stack) LDS, and it is pulled out from it for use.

  The packing apparatus 100 includes the transport unit 1, the pair of drawing rollers 2 and 2, the cutout unit 3, the processing unit 4, the inclined belt conveyor 5, the packaged object supply unit 6, the size acquisition unit 7, and packing. And 8 are provided. Moreover, the packing apparatus 100 is provided with the control part 9 which controls these each part. The portions 1 to 4 and 6 to 8 except a part of the inclined belt conveyor 5 are accommodated in a housing 102 supported at a predetermined height by leg portions 101 provided upright on the floor surface.

<Transport unit 1>
The transport unit 1 transports the long cardboard material LD drawn from the long 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 cardboard material stack LDS.

  Specifically, the transport unit 1 is wound around a group of transport rollers 11 and a group of transport rollers 11 arranged in a line at intervals higher than the upper end of the long cardboard material stack LDS. A belt 12 and a drive unit (not shown) for synchronously rotating a group of transport rollers 11 are included. Each conveyance roller 11 is supported in a horizontal posture, with its axial direction orthogonal to the arrangement direction. The axial length of each transport roller 11 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 the group of conveyance rollers 11 in accordance with an instruction from the control unit 9, the long cardboard material LD on the belt 12 (and the cardboard sheet D cut out therefrom) rides on the belt 12. It is 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 cardboard material stack LDS, a space is generated below it. The space is where the installation location 103 of the long cardboard material stack LDS, which is a supply source of the long cardboard material LD, the installation location of the spare long cardboard material stack LDS, and chips generated in the cutout part 3 and the processing part 4 Is used as an installation place of the chip storage unit 104 to be stored (or incinerated).

  In the following description, “front-rear 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. Also, the “left-right direction” is a horizontal direction orthogonal to the “front-rear direction”. Also, the "vertical direction" is the vertical direction.

<A pair of drawer rollers 2, 2>
The pair of drawing rollers 2 and 2 are provided at the front of the conveyance path 10. An installation place 103 for installing the long corrugated cardboard material stack LDS is provided on the floor surface at the lower front of the conveyance path 10, and the pair of drawing rollers 2 and 2 are set at the installation place 103. It is disposed at a position higher than the upper end of the corrugated cardboard material stack LDS and equal to 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 draw-out roller 2 is disposed obliquely above the front side of the other draw-out roller 2 with a predetermined minute gap (slightly smaller than the thickness of the long corrugated cardboard material LD) from the other draw-out roller 2 Ru. Further, the axial length of each conveyance roller 11 is slightly larger than the width of the long corrugated cardboard material LD. Furthermore, a driving unit (not shown) is connected to the pair of drawing rollers 2 and 2 for rotating them in opposite directions to deliver the long cardboard material LD to the rear side.

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

<Cut-out part 3>
The cutout unit 3 is provided in the middle of the transport path 10, and cuts out the corrugated cardboard sheet D by cutting the long corrugated cardboard material LD transported in the transport path 10 at a predetermined length.

  Specifically, the cutout unit 3 includes a cutting blade 31 and an elevating mechanism 32 for moving the cutting blade 31 up and down. The cutting blade 31 is supported in a horizontal posture, with the blade direction in 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 cardboard material LD. The lifting mechanism 32 is electrically connected to the control unit 9, and lifts and lowers the cutting blade 31 in accordance with an instruction from the control unit 9.

  As described later, the control unit 9 calculates the necessary size (front and rear width) of the corrugated paperboard sheet D in accordance with the size of the packaged object P acquired by the size acquiring unit 7. Then, the control unit 9 causes the lifting mechanism 32 to lower the cutting blade 31 at the timing when the long cardboard material LD is pulled out by the calculated front-rear width, and causes the long cardboard material LD to be cut. Thereby, the corrugated-cardboard sheet D according to the size of the to-be-packaged goods P is cut out. The cut cardboard sheet D is transported to the downstream side of the transport path 10.

<Processing part 4>
The processing unit 4 is provided in the middle of the transport path 10 and is provided at the rear (downstream side) of the cutout portion 3 and performs at least one of ruled line application and groove cutting on the corrugated cardboard sheet D transported in the transport path 10.

  Specifically, the processing unit 4 has a cutting blade 41, a driving mechanism 42 for moving the cutting blade 41 (specifically, a rotational driving mechanism for rotating the cutting blade 41 around a vertical axis, and the cutting blade 41). It is comprised including the horizontal drive mechanism which moves to left and right, and the raising / lowering drive mechanism which raises / lowers the cutting blade 41. As shown in FIG. The drive mechanism 42 is electrically connected to the control unit 9, and moves the cutting blade 41 in accordance with an instruction from the control unit 9.

  The processing unit 4 further includes a pressing blade 43 having a rounded tip (or having a flat surface area at the tip) and a drive mechanism 44 for moving the pressing blade 43 (specifically, the pressing blade 43 is vertical And a horizontal drive mechanism for moving the pressing blade 43 to the left and right, and an elevation driving mechanism for moving the pressing blade 43 up and down. The drive mechanism 44 is electrically connected to the control unit 9, and moves the pressing blade 43 in accordance with an instruction from the control unit 9.

  As described later, the control unit 9 specifies the position of each line in the corrugated cardboard sheet D in which the groove (or / and the ruled line) is to be formed, according to the size of the packaged object P acquired by the size acquiring unit 7 . Then, the control unit 9 controls the drive mechanism 42 (specifically, the rotational drive mechanism) to make the extending direction of the cutting blade 41 coincide with the angle of a predetermined line, and 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, by controlling the drive mechanism 42 (specifically, the elevation drive mechanism), the cutting blade 41 is lowered to form a groove at a position corresponding to the line. Similarly, the drive mechanism 44 (specifically, the rotational drive mechanism) is controlled to match the extension direction of the pressing blade 43 with the angle of a predetermined line, and the drive mechanism 44 (specifically, the horizontal drive mechanism). ) To horizontally move the pressing blade 43 to a position corresponding to the line. Then, by controlling the drive mechanism 44 (specifically, the elevation drive mechanism), the pressing blade 43 is lowered to form a ruled line at a position corresponding to the line.

<Inclination belt conveyor 5>
The inclined belt conveyor 5 is a mechanism for pulling up the objects to be packaged P to the height of the transport path 10 or more. The configuration of the inclined belt conveyor 5 will be specifically described with reference to FIG. FIG. 3 is a view schematically showing the configuration of the inclined belt conveyor 5.

  Specifically, the inclined belt conveyor 5 includes a plurality of transport rollers 51, a belt 52 wound around a group of transport rollers 51, and a drive unit (not shown) for synchronously rotating the group of transport rollers 51. It is comprised including. Here, the group of transport rollers 51 are arranged in a line in the back and forth along the diagonal direction which becomes higher as going backward, and the height of the transport roller 51 of the rear end is a long corrugated cardboard material stack LDS It is positioned higher than the top of the.

  Each conveyance roller 51 is supported in a posture in which the axial direction thereof extends in the left-right direction. Here, the conveyance rollers 51 other than the tail end are supported in an oblique posture in which the left side is lower than the right side, and the inclination angle (the angle that the axial direction makes with the horizontal direction) θ is the conveyance roller 51 on the rear side. It is supposed to be small. Further, the last conveyance roller 51 is supported in a horizontal posture.

  In this configuration, when the drive unit rotates the group of conveyance rollers 51 in accordance with an instruction from the control unit 9, the packaged object P placed on the lower end of the belt 52 wound around the group of conveyance rollers 51 is It is transported obliquely upward. Here, in the vicinity of the lower end, one side (left side here) in the width direction (left and right direction) of the upper surface (belt surface) of the belt 52 is lower than the other side (right side here). The belt surface is formed of a relatively slippery material, and the object P placed on the belt surface slides down so as to cross the belt surface from right to left and is aligned with the left side of the belt surface . Therefore, the worker etc. can align the to-be-packaged object P on one side (here, the left side) of the belt surface without paying special attention when placing the to-be-packaged item P on the belt surface. The inclined belt conveyor 5 is provided such that the end surface on one side (the area to which hatching is given in FIG. 3) abuts on a wall or the like so that the object P does not slide down from the one side of the belt 52. It is done. Further, the belt 52 is provided with a plurality of ribs (protrusions) 521 at intervals in the extending direction (front-rear direction), and the package P placed on the belt 52 is It does not slide down downwards.

<Packaged item supply unit 6>
Refer back to FIG. The to-be-packaged item supply unit 6 conveys the to-be-packaged item P pulled up by the inclined belt conveyor 5 along the to-be-packaged item transport path 60 and supplies it to the packing unit 8. However, the to-be-packaged article conveyance path 60 is provided at a position higher than the conveyance path 10.

  More specifically, the item-to-be-packaged supply unit 6 includes a plurality of transport rollers 61 arranged in a line in front and back with a predetermined height at intervals, and a belt 62 wound around a group of transport rollers 61. And a drive unit (not shown) for synchronously rotating a group of conveyance rollers 61. Each conveyance roller 61 is supported in a horizontal posture, with its axial direction along the left-right direction.

  In this configuration, when the drive unit rotates the group of conveyance rollers 61 according to an instruction from the control unit 9, the object P transferred on the belt 62 is conveyed on the belt 62. That is, in this configuration, the upper surface of the belt 62 forms the object transport path 60. Here, the leading conveyance roller 61 of the item-to-be-packaged supply unit 6 is provided at the same height as the conveyance roller 51 at the tail end of the inclined belt conveyor 5 and is pulled up by the inclined belt conveyor 5. The to-be-packaged object P is transferred on the belt 62 as it is and conveyed backward.

  On the rear side of the last conveying roller 61 of the item-to-be-packaged supply unit 6, a sloped plate (slide) 63 is provided. The inclined plate 63 is a long flat plate-like member extending in the front-rear direction, and is disposed in a posture inclined downward as going to the rear. The front end of the inclined plate 63 is disposed in proximity to the rearmost conveying roller 61, and the object P conveyed on the belt 62 is transferred onto the inclined plate 63 as it is. . On the other hand, the rear end of the inclined plate 63 is provided in the vicinity of the packing portion 8 provided on the conveyance path 10, and the object P which slides down the inclined plate 63 is supplied to the packing portion 8 as it is. ing.

  In addition, a delivery plate 64 is provided above the belt 62. The delivery plate 64 is a flat plate-like member whose upper end is pivotally supported by a pivot shaft extending leftward and rightward. When the delivery plate 64 is fixed in the standing posture (fixed state), the object P on the belt 62 is caught by the delivery plate 64 and can not be advanced backward. Further, when the delivery plate 64 is in a freely rotatable state (free state), the hooking is released, and the packaged object P is put on the belt 12 to be advanced rearward. The 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 object P is delivered to the packing unit 8.

<Size acquisition unit 7>
The size acquiring unit 7 is disposed above the package supplying unit 6 and acquires the size of the package P to be transported. Specifically, the size acquisition unit 7 is configured to include, for example, a camera and an image processing unit realized in the control unit 9. In this configuration, the size of the object P can be acquired by the camera imaging the object P and the image processing unit analyzing the acquired imaging data. However, the configuration of the size acquiring unit 7 is not limited to this. For example, the size of the object P may be acquired by receiving an input of the size of the object P from the user.

  As described later, the control unit 9 calculates the size (longitudinal width) of the cardboard sheet D for packing the object P according to the size of the object P acquired by the size acquiring unit 7. Moreover, the position of the line which should form the groove | channel (or / and a crease | fold) in this corrugated-cardboard sheet D is specified.

<Packing unit 8>
The packing part 8 packs the to-be-packaged goods P with the corrugated-cardboard sheet | seat D conveyed by the conveyance path 10. FIG. As described above, the packaged product P is supplied to the packaging unit 8 from the packaged product supply unit 6. The supplied packaged goods P are placed on a flat corrugated cardboard sheet D transported on the transport path 10. When the object to be packaged P is placed, the packaging unit 8 bends the corrugated cardboard sheet D so as to wrap it in accordance with the shape of the object to be packaged P. Specific aspects of the package will be described later.

<1-2. Aspect of processing in control unit 9>
<I. Cardboard sheet D size>
The control unit 9 calculates the size (longitudinal width) of the cardboard sheet D for packing the object P according to the size of the object P acquired by the size acquiring unit 7. The aspect of calculating the front and rear width will be described with reference to FIG.

First, the control unit 9 defines a rectangular parallelepiped Pi inscribed in the item to be packaged P based on the size of the item to be packaged P acquired by the size acquiring unit 7, and the front and rear lengths (longitudinal width) X thereof The left and right length (left and right width) Y and the upper and lower length (upper and lower width) Z are respectively 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 top-bottom width Z according to the following equation (1).
Dx = (1/2 + 1 + 2/3) X + (1 + 1) Z formula (1)

<Ii. Cardboard sheet D size>
The control unit 9 determines the position of the line on which the groove (or / and the ruled line) is to be formed in the cardboard sheet D for packing the package P according to the size of the package P acquired by the size acquiring unit 7. Identify. The manner of identifying the position of the line will be described with continued reference to FIG.

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

  Further, the control unit 9 sets a line extending back and forth as a first front and rear line Lx1 at a position to the right of “Dy-Y) / 2” from the left side of the corrugated sheet D, and At a position to the left by Dy−Y) / 2 ′ ′, a line extending in the front-rear direction is referred to as a second front-rear line Lx2. However, "Dy" is a dimension of the horizontal width of the long corrugated cardboard material LD, and is a predetermined fixed value.

  Furthermore, the control unit 9 starts from the intersection point of the second left and right line Ly2 and the first front and rear line Lx1 from the first oblique line Ls1 extending from the left front direction at an angle of 45 ° to the left front direction. I assume. Further, starting from an intersection point of the second left and right line Ly2 and the second front and rear line Lx2, a line extending to the right front at an angle of 45 ° with respect to the left and right direction is set as a second oblique line Ls2. Further, starting from an intersection point of the third left and right line Ly3 and the first front and rear line Lx1, a line extending leftward and backward at an angle of 45 ° to the left and right direction is set as a third oblique line Ls3. Further, starting from an intersection point of the third left and right line Ly3 and the second front and rear line Lx2, a line extending rearward at an angle of 45 ° to the left and right direction from there is taken as a fourth oblique line Ls4.

  The control unit 9 sets the first front and rear lines Lx1 and the second front and rear lines Lx2 among the groups of lines Ly1 to Ly4, Lx1, Lx2 and Ls1 to Ls4 defined in the above-described manner as lines to form a ruled line. Further, among the first to fourth left and right lines Ly1 to Ly4, a line portion inside the front and rear lines Lx1 and Lx2 is a line on which a ruled line is to be formed, and an outside line portion is a line on which a groove is to be formed. . Further, each of the oblique feeding lines Ls1 to Ls4 is a line to form a groove.

Iii. Aspect of packing>
The control unit 9 controls the packing unit 8 to receive the cardboard sheet D in which the ruled lines or the grooves are formed at the positions corresponding to the lines Ly1 to Ly4, Lx1, Lx2 and Ls1 to Ls4 defined in the above-described mode. Pack the package P. The aspect of the package will be described with reference to FIGS. 4 and 5.

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

  Subsequently, the cardboard sheet D is bent upward at the ruled line of the third left and right line Ly3, and further bent backward at the ruled line of the fourth left and right line Ly4 (FIG. 5A). The corrugated sheet D can be bent using, for example, a robot hand. Thereafter, the cardboard sheet D is bent upward at the ruled line of the second left and right line Ly2, and further bent forward at the ruled line of the first left and right line Ly1 (FIG. 5 (b)). 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 object to be packed P. Since the first left and right lines Ly1 are at a position separated by “(1/2) X” from the rear side of the cardboard sheet D, the rear side of the cardboard sheet D is disposed at the front and rear center of the object P at this time. It will be

  Subsequently, each flap portion F1 extending along the rear surface of the object to be packed P and each flap portion F2 extending along the front surface of the object to be packaged P are arranged along the left surface (or right surface) of the object P to be packaged. And bend. Furthermore, each flap part F3 extended along the upper surface of the to-be-packaged goods P is bend | folded along the left surface (or right surface) of the to-be-packaged goods P (FIG.5 (c)). Then, each flap part F4 extended along the lower surface of the to-be-packaged goods P is bend | folded along the left surface (or right surface) of the to-be-packaged goods P (FIG.5 (d)).

  Subsequently, a tape T is attached to the front and rear center of the object to be packaged P along the left and right (FIG. 5 (e)). The end of the tape T is stuck to the flap portion F4 bent upward. Since the flap portion F4 has a trapezoidal shape in which the width decreases toward the tip, the flap portion F4 is sufficiently fixed by only one tape stop at the center in the back and forth direction. When the flap portion F4 has a rectangular shape, corner fixing or the like may occur at the both sides of the tape T when fixed at only one front-rear center, and the appearance may be deteriorated. The situation can also be avoided. The tape T can be attached using, for example, a robot hand. Moreover, you may pack a buffer material etc. in the clearance gap between the to-be-packaged goods P and the corrugated-cardboard sheet D before sticking the tape T as needed.

  By the above processing, the packaged product P is packaged in the corrugated cardboard sheet D (package Q).

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

  In the packing apparatus 100, first, the long corrugated cardboard material stack LDS is installed at the installation location 103 by the operator, and the end of the long corrugated cardboard material LD drawn therefrom is between the pair of drawing rollers 2 and 2. It is in a state of being caught in

  When an instruction to start processing is received from the worker, the control unit 9 starts rotating the transport roller 51 of the inclined belt conveyor 5 and the transport roller 61 of the item-to-be-packaged supply unit 6. In this state, when the workers etc. place objects P to be packed on the lower end of the belt 52 of the inclined belt conveyor 5 one after another, the objects P to be packed are pulled up one after another obliquely on the belt 52, The upper end of the belt 52 is transferred onto the belt 62 of the item-to-be-packaged supply unit 6 and conveyed backward.

  On the other hand, the size acquiring unit 7 acquires the sizes of the objects to be packed P conveyed one after another on the belt 62 of the object conveying unit 6. The control unit 9 should calculate the size (longitudinal width Dx) of the corrugated cardboard sheet D for packing the package P based on the acquired size, and further form grooves and creases in the corrugated cardboard sheet D. The positions of the lines Ly1 to Ly4, Lx1, Lx2, and Ls1 to Ls4 are specified.

  On the other hand, the control part 9 starts conveyance of the long cardboard material LD with the start of conveyance of the object P to be packed. That is, the pair of drawing rollers 2 and 2 and the group of conveyance rollers 11 of the conveyance section 1 are started to rotate. As a result, the long cardboard material LD pulled out from the long cardboard material stack LDS is carried on the belt 12 and conveyed backward. 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 self-weight of the long corrugated cardboard material stack LDS allows the upstream side (front side) of the pair of drawing rollers 2 and 2 Tension always applies to the long cardboard material LD. Therefore, when the conveyance of the long cardboard material LD by the conveyance unit 1 is stopped, the occurrence of jamming of the long cardboard material LD on the inlet side of the pair of drawing rollers 2 and 2 is suppressed, and the long cardboard material is Smooth transportation of LD is possible.

  Then, the control unit 9 controls the cutout unit 3 to cut out the corrugated cardboard sheet D having the calculated front and rear width Dx from the long corrugated cardboard material LD. Further, the control unit 9 controls the processing unit 4 to form grooves or ruled lines in the lines Ly1 to Ly4, Lx1, Lx2, and Ls1 to Ls4 specified above.

  On the other hand, the control unit 9 controls the delivery plate 64 provided above the belt 62 of the to-be-packaged item transport unit 6 to pack the to-be-packaged item P at a predetermined timing (that is, to package the to-be-packaged item P At the timing when the corrugated cardboard sheet D is sent to the packing unit 8). Thereby, in the packing part 8, it will be in the state by which the to-be-packaged goods P which should be packed by this are mounted on the corrugated-cardboard sheet | seat D. FIG.

  When the to-be-packaged object P is placed on the corrugated cardboard sheet D, the packing unit 8 bends the corrugated cardboard sheet D so as to fit the to-be-packaged article P and wrap it. As a result, the item to be packaged P is packaged in a cardboard (package Q).

  The package Q obtained by the packing unit 8 is further transported backward on the belt 12 and is naturally dropped by a chute 105 provided at the rear end of the transport path 10. It should be noted that a plurality of routes of the chute 105 may be provided to distribute different kinds of packaged goods Q.

<2. Second embodiment>
<2-1. Device configuration>
The structure of the packing apparatus which concerns on 2nd Embodiment is demonstrated, referring FIGS. 6-8. FIG. 6: is a figure which shows typically the whole structure of the packing apparatus 200 which concerns on 2nd Embodiment. 7 and 8 are views of the first conveyance path 10a and the second conveyance path 10b as viewed from above. In the following description, the same elements as the elements described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The packing apparatus 200 is an apparatus which cuts out the corrugated sheet D of appropriate length from one long corrugated-cardboard raw material LD, and packages the to-be-packaged goods P similarly to the packing apparatus 100 which concerns on 1st Embodiment. In this embodiment, as the long cardboard material LD used for packing the articles to be packaged P, one made of double-sided cardboard and one made of single-sided cardboard can be selected and used. As described above, the long cardboard material LD made of double-faced cardboard is folded and stacked up and down (long cardboard material stack) LDS, and is pulled out and used from there. In addition, the long cardboard material LD made of single-faced cardboard is taken as a wound state (long cardboard material roll) LDR, and is pulled out and used from there.

  The packing apparatus 200 includes two conveyance units (a first conveyance unit 1a and a second conveyance unit 1b), and a pair of two drawing rollers (first drawing rollers 2a and 2a and second drawing rollers 2b and 2b). And two cut-out portions (a first cut-out portion 3a and a second cut-out portion 3b) and two processed portions (a first processed portion 4a and a second processed portion 4b). In addition, the packing apparatus 200 includes the inclined belt conveyor 5, the item-to-be-packaged supply unit 6, the size acquisition unit 7, and the packing unit 8. Moreover, the packing apparatus 200 is provided with the control part 9 which controls these each part. Further, the portions 1a, 1b, 2a, 2b, 3a, 3b, 4a, 4b, 6 to 8 except for a part of the inclined belt conveyor 5 are supported at a predetermined height by the legs 101 provided upright on the floor surface It is accommodated in the housing | casing 102 which was carried out.

<First Transport Unit 1a>
The first transport unit 1a transports the long cardboard material LD drawn from the long 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 cardboard material stack LDS.

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

  In the following description, the “front-rear direction” is a direction along the first conveyance path 10 a, “front” indicates the upstream side of the first conveyance path 10 a, and “rear” indicates the downstream side of the first conveyance path 10 a Point to. Also, the “left-right direction” is a horizontal direction orthogonal to the “front-rear direction”. Also, the "vertical direction" is the vertical direction.

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

<First cutout part 3a and first processing part 4a>
The first cutout part 3a and the first processing part 4a are provided in the middle of the first conveyance path 10a. The specific configurations of the first cutout 3a and the first processing unit 4a are the same as those of the cutout 3 and the processing unit 4 according to the first embodiment.

<Second Transport Unit 1b>
The second transport unit 1b transports the long cardboard material LD drawn from the long cardboard material roll LDR along the transport path (second transport path) 10b. However, the second conveyance path 10 b 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 that of the first conveyance path 10 a. Furthermore, the second conveyance path 10 b is provided orthogonal to the first conveyance path 10 a (that is, extending to the left and right), and merges with the first conveyance path 10 a at the arrangement position of the packing portion 8. That is, the packing unit 8 is provided at the joining position of the first conveyance path 10a and the second conveyance path 10b. In the illustrated example, the second conveyance path 10b is disposed on the right side of the first conveyance path 10a. In this case, the conveyance direction of the second conveyance path 10b is from the right side to the left side. That is, the upstream side of the second conveyance path 10b in the conveyance direction is the right, and the downstream side is the left.

  The specific configuration of the second conveyance path 10 b is the same as that of the conveyance unit 1 according to the first embodiment. That is, the second transport path 10b rotates the plurality of transport rollers arranged at a position higher than the upper end of the long cardboard material material roll LDR, the belt 12b wound around them, and a group of transport rollers in synchronization with each other. The upper surface of the belt 12b forms a second conveyance path 10b.

<Second Drawer Roller 2b, 2b>
The pair of drawing rollers (second drawing rollers) 2b and 2b are provided on the right side of the second conveyance path 10b. A support 106 for rotatably supporting the shaft of the long cardboard material material roll LDR is provided on the floor surface of the second conveyance path 10b in the diagonally lower right, and the pair of drawing rollers 2b and 2b The end portion of the long cardboard material material roll LDR supported by the support portion 106 is drawn diagonally upward and leftward and introduced into the second conveyance path 10b. The specific configuration of the pair of drawing rollers 2b and 2b is the same as that of the pair of drawing rollers 2 and 2 according to the first embodiment. Further, at the right end of the second conveyance path 10b, a pressing roller 21b is provided to press the long cardboard material LD introduced here so as not to float from the upper surface of the belt 12b.

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

2-2. Aspect of processing in control unit 9>
<I. Cardboard sheet D size>
The control unit 9 calculates the size (longitudinal width) of the cardboard sheet D for packing the object P according to the size of the object P acquired by the size acquiring unit 7. However, in the case where the corrugated cardboard sheet D for packing the object to be packed P is made of double-sided corrugated cardboard, the longitudinal width Dx of the corrugated cardboard sheet D is calculated in the same manner as in the first embodiment. On the other hand, in the case where the corrugated cardboard sheet D for packing the object to be packed P is a single-sided corrugated cardboard, the size (left and right width) of the corrugated cardboard sheet D is calculated in the following manner. The aspect of calculating the left and right width will be described with reference to FIG.

First, the control unit 9 defines a rectangular parallelepiped Pi inscribed in the item to be packaged P based on the size of the item to be packaged P acquired by the size acquiring unit 7, and the front and rear lengths (longitudinal width) X thereof The left and right length (left and right width) Y and the upper and lower length (upper and lower width) Z are respectively calculated. And control part 9 specifies right-and-left width Dy of corrugated-cardboard sheet D based on right-and-left width Y and up-and-down width Z from a following formula (2). However, in Formula (2), "t" is the thickness of the cardboard sheet D.
Dy = Y + 2 (Z-2t) · Formula (2)

<Ii. Cardboard sheet D size>
The control unit 9 specifies the position of the line on which the ruled line is to be formed in the corrugated cardboard sheet D for packing the item to be packed P in accordance with the size of the item to be packed P acquired by the size acquiring unit 7. The manner of identifying the position of the line will be described with continued reference to FIG.

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

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

  Furthermore, the control unit 9 starts at each of the intersections of the first left and right lines My1 and the first front and rear lines Mx1 and the intersections of the third left and right lines My3 and the first front and rear lines Mx1. Each line extending to the right front at an angle is referred to as a first oblique line Ms1. With the intersections of the first left and right lines My1 and the second front and rear lines Mx2 and the intersections of the third left and right lines My3 and the second front and rear lines Mx2 as a starting point, form an angle of 45 ° with the left and right directions Each line extending to the left front is also referred to as a first oblique line Ms1.

  With the intersection of the second right and left 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 as the starting point, form an angle of 45 ° with the left and right direction Each line extending to the right rear is taken as a second oblique line Ms2. Starting from each of the intersections of the second right and left 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, form an angle of 45 ° with the left and right direction Each line extending left backward is also referred to as a second oblique line Ms2.

  Furthermore, on the right side of the cardboard sheet D, starting from a point behind "X- (Z-2t)" from the intersection point of the fourth left and right line My4, the left rear forms an angle of 45 ° with the left direction The line extending in the direction is referred to as a third oblique line Ms3. In the left side of the cardboard sheet D, starting from a point behind "X-(Z-2t)" from the point of intersection of the fourth right and left line My4, the left back forms right angle with the right and left direction The line extending in the direction is also the third oblique line Ms3.

  The control unit 9 sets all of the group of lines My1 to My4, Mx1, Mx2 and Ms1 to Ms3 defined in the above-described manner as lines to form a ruled line. That is, in this case, the groove is not formed.

Iii. Aspect of packing>
The control unit 9 controls the packing unit 8 to be packaged by the corrugated cardboard sheet D formed at the position corresponding to each of the lines My1 to My4, Mx1, Mx2 and Ms1 to Ms3 defined in the above aspect Pack P. The aspect of the package will be described with reference to FIGS. 9 and 10.

  First, the object to be packaged P is disposed at a predetermined position on the cardboard sheet D. Specifically, the object to be packaged P is disposed in the area surrounded by the first front and rear line Mx1, the second left and right line My2, the second front and rear line Mx2, and the third left and right line My3 (FIG. 9). Position alignment of the to-be-packaged thing P can be performed, for example using a robot hand.

  Subsequently, the cardboard sheet D is bent upward at the ruled line of the third left and right line My3, and is further bent forward at the ruled line of the fourth left and right line My4 (FIG. 10A). The corrugated sheet D can be bent using, for example, a robot hand. Thereafter, the cardboard sheet D is bent upward at the ruled lines of the second left and right line My2, and further bent backward at the ruled lines of the first left and right line My1 (FIG. 10 (b)). 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 object to be packed P. Since the first left and right lines My1 are spaced apart from the front side of the cardboard sheet D by (1/2) X, the front side of the cardboard sheet D is disposed at the front and back center of the object P at this time. It will be

  Subsequently, the creases of the oblique lines Ms1, Ms2 and Ms3 are mountain-folded, and each flap portion F1 extending along the front surface of the packaged object P and each extending along the rear surface of the package object P The flap part F2 is bend | folded along the left surface (or right surface) of the to-be-packaged goods P (FIG.10 (c)). However, in the state of FIG. 10 (b), the end point of the third oblique line Ms 3 is forward by “X− (Z−2t)” than the fourth left and right line My 4 (that is, more than the first left and right line My 1, It is in “(Z−2t)” (rearward) and coincides with the end point of the first oblique line Ms1. That is, the ruled line of the first oblique line Ms1 and the ruled line of the third oblique 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 object to be packed P overlap. Are folded in one go.

  Then, each flap part F3 extended along the upper surface of the to-be-packaged goods P is bent along the left surface (or right surface) of the to-be-packaged goods P, Then, each extended along the undersurface of the to-be-packaged goods P The flap part F4 is bend | folded along the left surface (or right surface) of the to-be-packaged goods P (FIG.10 (d)).

  Subsequently, a tape T is attached to the front and rear center of the object to be packed P along the left and right (FIG. 10 (e)). The end of the tape T is stuck to the flap portion F4 bent upward. Since the flap portion F4 has a trapezoidal shape in which the width decreases toward the tip, the flap portion F4 is sufficiently fixed by only one tape stop at the center in the back and forth direction. In addition, it is also possible to avoid the possibility of the appearance being deteriorated due to corner bending or the like occurring on both sides of the tape T. The tape T can be attached using, for example, a robot hand. Moreover, you may pack a buffer material etc. in the clearance gap between the to-be-packaged goods P and the corrugated-cardboard sheet D before sticking the tape T as needed.

  By the above processing, the packaged product P is packaged in the corrugated cardboard sheet D (package Q).

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

  In the packing apparatus 200, first, the long corrugated cardboard material stack LDS is installed at the installation location 103 by the operator, and the end of the long corrugated cardboard material LD drawn therefrom is the pair of drawing rollers (first drawing roller )) 2a, it is in a state of being sandwiched between 2a. Further, the long corrugated cardboard material roll LDR is installed on the support portion 106 by the worker, and the end of the long corrugated cardboard material LD pulled out therefrom is between the pair of drawing rollers (second drawing rollers) 2b and 2b. It is in a state of being caught in

  When an instruction to start processing is received from the worker, the control unit 9 starts rotation of the transport roller 51 of the inclined belt conveyor 5 and the transport roller 61 of the item-to-be-packaged supply unit 6 as in the first embodiment. In this state, when the workers etc. place objects P to be packed on the lower end of the belt 52 of the inclined belt conveyor 5 one after another, the objects P to be packed are pulled up one after another obliquely on the belt 52, The upper end of the belt 52 is transferred onto the belt 62 of the item conveying unit 6 and conveyed rearward.

  On the other hand, the size acquiring unit 7 acquires the sizes of the objects to be packed P conveyed one after another on the belt 62 of the object conveying unit 6. The control unit 9 determines, based on the acquired size, whether to package the object P in a double-sided cardboard or a single-sided cardboard. For example, if the longest side of the rectangular parallelepiped Pi to which the object P is inscribed is smaller than the predetermined threshold value, it is determined that packaging should be performed with a single-sided cardboard, and it is determined that packaging should be performed with a double-sided cardboard otherwise.

  When it is determined that the object P to be packed should be packed in a double-faced cardboard, the control unit 9 sets the size (longitudinal width Dx) of the cardboard sheet D for packing the object P in the manner described in the first embodiment. While calculating it, the position of each line Ly1-Ly4, Lx1, Lx2, Ls1-Ls4 which should form the groove | channel and crease in this corrugated-cardboard sheet D is specified (refer FIG. 4).

  Further, in this case, the control unit 9 rotates the group of conveyance rollers 11 a of the first drawing rollers 2 a and 2 a and the first conveyance unit 1 a. As a result, the long cardboard material LD (that is, the long cardboard material LD made of double-sided cardboard) pulled out from the long cardboard material stack LDS is carried on the belt 12a and conveyed backward (FIG. 7). Also here, since the first conveyance path 10a is provided at a position higher than the upper end of the long corrugated cardboard material stack LDS, when the conveyance of the long cardboard material LD by the first conveyance unit 1a is stopped, a pair of drawers The occurrence of jamming of the long cardboard material LD on the inlet side of the rollers 2a, 2a is suppressed, and the smooth transportation of the long cardboard material LD becomes possible.

  And control part 9 controls the 1st logging section 3a, and cuts out corrugated paper sheet D of front and back width Dx calculated previously from long cardboard material LD. Further, the control unit 9 controls the first processing unit 4a to form grooves or ruled lines in the lines Ly1 to Ly4, Lx1, Lx2, and Ls1 to Ls4 specified above.

  On the other hand, when it is determined that the to-be-packaged object P should be packed in the single-faced cardboard, the control unit 9 calculates the size (horizontal width Dy) of the cardboard sheet D for packing the to-be-packaged P in the above-described manner. The positions of the lines My1 to My4, Mx1, Mx2 and Ms1 to Ms3 for forming the ruled lines in the cardboard sheet D are specified (FIG. 9).

  Further, in this case, the control unit 9 rotates the group of conveyance rollers of the second drawing rollers 2b and 2b and the second conveyance unit 1b. As a result, the long cardboard material LD (that is, the long cardboard material LD made of single-sided cardboard) pulled out from the long cardboard material roll LDR is conveyed on the belt 12b to the left (FIG. 8). Also here, since the second conveyance path 10b is provided at a position higher than the upper end of the long corrugated cardboard material roll LDR, when the conveyance of the long cardboard material LD by the second conveyance unit 1b is stopped, a pair of drawers The occurrence of jamming of the long cardboard material LD on the inlet side of the rollers 2b, 2b is suppressed, and the smooth transportation of the long cardboard material LD becomes possible.

  Then, the control unit 9 controls the second cutout unit 3 b to cut out the corrugated cardboard sheet D having the calculated width width Dy 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 lines My1 to My4, Mx1, Mx2 and Ms1 to Ms3 specified above.

  As a result of such processing, the packing section 8 is provided with a corrugated cardboard sheet D made of double-faced corrugated cardboard carried on the first conveyance path 10a or a corrugated cardboard sheet D made of single-sided corrugated cardboard carried on the second conveyance path 10b one after another. Will be transported. The control unit 9 controls the delivery plate 64 provided above the belt 62 of the to-be-packaged item conveyance unit 6 to set the to-be-packaged item P at a predetermined timing (that is, a corrugated sheet for packing the to-be-packaged item P). At the timing when D is sent to the packing unit 8, the packing unit 8 is supplied. Thereby, in the packing part 8, it will be in the state by which the to-be-packaged goods P which should be packed by this are mounted on the corrugated-cardboard sheet | seat D. FIG.

  When the to-be-packaged object P is placed on the corrugated cardboard sheet D, the packing unit 8 bends the corrugated cardboard sheet D so as to fit the to-be-packaged article P and wrap it. When the corrugated cardboard sheet D is made of double-faced corrugated cardboard, the object to be packaged P is packaged in the manner described in the first embodiment (see FIG. 5). On the other hand, in the case where the corrugated cardboard sheet D is made of single-sided corrugated cardboard, the article to be packed P is packaged in the manner described above (FIG. 10). As a result, the item to be packaged P is packaged in a cardboard (package Q).

  The package Q obtained by the packing unit 8 is carried on the belt 12a of the first conveyance unit 1a and conveyed backward, and is dropped naturally by a chute 105 provided at the rear end of the first conveyance path 10a. It should be noted that a plurality of routes of the chute 105 may be provided to distribute different kinds of packaged goods Q.

<3. Other Embodiments>
In the second processing unit 4b according to the second embodiment, a triangular area surrounded by the oblique lines Ms1, Ms2, and Ms3, the left and right lines My1 to My4, and the left side (or the right side) of the cardboard sheet D (see FIG. The area hatched at 11) may be crushed using a pressing tool or the like to make the thickness smaller than the other areas. Alternatively, a line portion surrounding the triangular area may be formed by a groove to cut out the area. According to each of these structures, when packing the to-be-packaged goods P with the corrugated-cardboard sheet | seat D, it becomes easy to bend the corrugated-cardboard sheet | seat D. FIG.

  In the packing apparatus 100, 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 disposed on the floor surface, and the conveyance path 10 (first conveyance path 10a) And the second conveyance path 10b) is provided at a position higher than the floor surface, but as in the packing apparatus 300 shown in FIG. 12, the long corrugated cardboard material stack LDS (or / and the long corrugated cardboard material roll LDR) The transfer path 10 (the first transfer path 10a and the second transfer path 10b) may be provided on the floor surface at a position (for example, underground) lower than the floor surface.

  In the packing apparatus 100 according to the first embodiment, as the long corrugated cardboard material LD used for packing the to-be-packaged goods P, one made of single-faced corrugated cardboard may be used. The whole structure of the packing apparatus 400 which concerns on this modification is typically shown by FIG. As shown here, in the packing apparatus 400, in place of the installation place 103 for installing the long cardboard material stack LDS, the support part 106 for supporting the long cardboard material roll LDR is provided. .

  In the first embodiment, the processing unit 4 is provided in the middle of the conveyance path 10 and at the rear (downstream side) of the cutout 3. However, the processing unit 4 is in the middle of the conveyance path 10 and the cutout 3 It may be provided in front of (upstream side of). In this case, the processing unit 4 performs at least one of the ruled line application and the grooving on the long corrugated cardboard material LD transported in the transport path 10, and then the cutout unit 3 cuts out the corrugated cardboard sheet D. Similarly, in the second embodiment, the first processing unit 4a (the second processing unit 4b) is in the middle of the first transport path 10a (the second transport path 10b) and the first cutout portion 3a (the second cutout portion) It may be provided upstream of 3b).

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

100, 200, 300, 400 ... packing apparatus 1 ... conveyance unit 10 ... conveyance path 11 ... conveyance roller 12 ... belt 1 a ... first conveyance section 1 b ... second conveyance section 10 a ... first conveyance path 11 a ... conveyance roller 12 a ... belt DESCRIPTION OF SYMBOLS 10b ... 2nd conveyance path 12b ... Belt 2 ... Drawer roller 2a ... 1st drawer roller 2b ... 2nd drawer roller 3 ... Cutting part 3a ... 1st cutting part 3b ... 2nd cutting part 4 ... Processing part 4a ... 1st process 4b: second processing unit 5: inclined belt conveyor 6: packed material supply unit 7: size acquisition unit 8: packing unit 9: control unit D: corrugated sheet LD: long cardboard material LDR: long cardboard material roll LDS ... Long-length cardboard material stack P ... packed goods Q ... packed goods T ... tapes

Claims (4)

The long corrugated cardboard material drawn from a long corrugated cardboard material stack formed by folding a long corrugated cardboard material roll formed by winding one long corrugated cardboard material or one long corrugated cardboard material is stacked, A transport unit configured to transport along a transport path provided at a position higher than the upper end of the large corrugated cardboard material roll / long corrugated cardboard material stack;
A pair of drawing rollers provided at the front of the transport path;
A cutout section for cutting out the long cardboard material transported on the transport path by a predetermined length to cut out a cardboard sheet;
A processing unit that applies at least one of a ruled line and a ditch to the long corrugated cardboard material or the corrugated cardboard sheet transported on the transport path;
A packing unit for packing an object to be packed with the corrugated cardboard sheet conveyed on the conveyance path;
A packaging device comprising: It is the packing apparatus of Claim 1, Comprising:
An inclined belt conveyor for pulling the object to be packed to a height above the transport path;
An item-to-be-packaged supply unit that supplies the pulled-out packaged object 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,
Packing equipment. It is a packing apparatus of Claim 1 or 2, Comprising:
Size acquisition unit, which acquires the size of the item to be packed
Equipped with
The cutout section cuts the long cardboard material at a length corresponding to the size of the item to be packaged,
The processing unit performs at least one of a ruled line application and a groove cutting at a position defined based on the size of the object to be packaged,
The packing section places the item to be packed on the flat corrugated cardboard sheet, and folds the corrugated sheet so that it conforms to the shape of the item to be packed.
Packing equipment. It is a packing apparatus in any one of Claim 1 to 3, Comprising:
The transport unit
A first transport unit configured to transport the long cardboard material drawn from the long cardboard material stack along a first transport path provided at a position higher than the upper end of the long cardboard material stack;
The long corrugated cardboard material drawn out from the long corrugated cardboard material roll is provided at a position higher than the upper end of the long corrugated cardboard material roll, and is orthogonal to the first conveying path and at the predetermined joining position. A second transport unit that transports along a second transport path joining the path;
Equipped with
The pair of drawing rollers are respectively provided at the front of the first conveyance path and at the front of the second conveyance path.
The cutout unit and the processing unit are respectively provided in the middle of the first conveyance path and in the middle of the second conveyance path.
The packing unit is provided at the merging position.
Packing equipment.

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