JP6534590B2 - Box-making device - Google Patents

Description

  The present invention relates to a box making apparatus for packaging boxes.

  Packaging boxes containing articles are often arranged in a stacked state during transportation and after being transported to a retailer. Patent Document 1 discloses a packaging box in which reinforcing pillars extending from the bottom wall to the top wall are provided at corner portions of the outer peripheral wall in order to improve the pressure resistance strength at the time of stacking. The reinforcing column of the packaging box is formed in a rectangular cylinder shape in a plan view by an end wall, an edge wall connected to the end wall, and an extension piece connected to the edge wall. Further, according to Patent Document 2, a substantially triangular cylindrical reinforcement is provided by an edge wall provided in a row with the end wall, a first inclined wall provided in a row with the edge wall, and a second inclined wall provided in a row with the first inclined wall. A packaging box forming a column is disclosed.

Japanese Utility Model Publication No. 4-49061 Design registration No. 1523129 gazette

  However, the packaging boxes of Patent Literatures 1 and 2 are not convenient because they need to be manually assembled by a worker at a product manufacturer. In particular, in the packaging box of Patent Document 2, the folding line between the end wall and the edge wall and the folding line between the fixed wall fixed to the end wall and the second inclined wall are located close to each other. On the other hand, since the repulsive force at the time of bending a reinforcement pillar is strong, assembling workability is bad.

  An object of the present invention is to provide a box-making apparatus capable of automatically box-making a packaging box provided with reinforcing columns at corner portions.

The present invention is erected at a bottom wall, an end wall erected at a first edge of the bottom wall, and a second edge of the bottom wall extending in a direction intersecting the first edge. A side wall, and an edge wall connected to the side wall side edge of the end wall via a first bending line, the edge wall being fixed to the inner side surface of the side wall, and extending along the first bending line A first inclined wall continuously provided on the edge wall side via a second bending line, and a third inclined line extending along the second bending line are continuously provided on the first inclined wall Connected to the second inclined wall via a second inclined wall that is being made and a fourth bending line that extends along the third bending line, and fixed to the inner surface of the end wall and a fixation wall, is formed into a cylindrical shape by at least one of the said first inclined wall and the second sloped wall edge wall and said end wall, said edge walls and said end Wherein said first sloped wall and the second sloped wall inclined with respect to one, a portion of the third folding line as the top inwardly reinforcement pillars formed by the packaging boxes are that protrudes out of the A box making apparatus, wherein the end wall and the edge wall are bent along the first fold line, and a temporary folding portion to which a fold along the first fold line is attached, and the edge wall The first inclined wall side is bent, and the end wall and the fixed wall which are overlapped by the bending are fixedly attached to each other by the reinforcing wall, and the end wall is fixed to the bottom wall. The overlapping side wall includes an end wall bending member to be bent, an edge wall bending member to bend the edge wall with respect to the end wall, and a side wall bending member to bend the side wall to the bottom wall. And a molded portion for fixing the edge wall to the box.

This box-making apparatus has a molding portion having an edge wall bending member for bending the reinforcing column temporarily assembled at the reinforcing column temporary assembly portion to the end wall by bending the edge wall to the end wall. Even if the repulsive force between the end wall and the reinforcing column is strong, they can be reliably held in a bent state. Therefore, by bending the side wall with the side wall bending member, the edge wall and the side wall of the reinforcing pillar are disposed at predetermined positions, and by fixing them, the packaging box provided with the reinforcing pillar at the corner can be automatically formed. Therefore, the convenience and the workability at the article manufacturer can be improved. In addition, since the temporary folding portion for attaching a fold along the first folding line is provided in front of the reinforcing column temporary assembling portion, the bendability at the time of bending the edge wall with respect to the end wall can be improved. Furthermore, since the step of folding is performed in a flat state in which the reinforcing pillars are not formed, it can be easily and reliably folded and folded.

  In the molding unit, the edge wall is bent with respect to the end wall along the first bending line by the edge wall bending member, so that the fixing wall is attached to the fixing wall along the fourth bending line. A first step of bending the second inclined wall and bending the entire reinforcing column with respect to the end wall, and holding the bent state of the reinforcing column by the edge wall bending member by the end wall bending member A second step of bending the end wall with respect to the bottom wall, and a third step of bending the side wall with respect to the bottom wall by the side wall bending member to secure the side wall to the edge wall; Are executed in order. Although the first to third steps are respectively performed in order, it is preferable that the execution start time is during execution of the previous step. And according to this aspect, even if the execution of the third step is started during the execution of the second step, there is no factor that inhibits the operation. Therefore, since the bending start time of the side wall by a side wall bending member can be advanced, productivity of a packaging box can be improved.

  The end wall bending member is rotatably disposed at a lower portion of the end wall, and the edge wall bending member rotates to the end wall bending member so as to be located at a lower portion of the edge wall. It is arranged as possible. According to this aspect, the end wall can be bent relative to the bottom wall, and the edge wall (reinforcing column) can be reliably held in the bent state relative to the end wall.

  Further, the side wall bending member is disposed so as to be movable upward at a lower portion of the side wall, and fixes the side wall by pressing the side wall against the edge wall. According to this aspect, the side wall and the edge wall can be securely fixed by bending the side wall with respect to the bottom wall.

  Further, in the temporary folding portion, the first inclined wall and the second inclined wall are bent along the third bending line, and a fold along the third bending line is further attached. According to this aspect, when forming the reinforcing post, the second inclined wall can be bent relative to the first inclined wall. Therefore, the top of the reinforcement column which is a portion of the third bending line can be made to project reliably, and a cylindrical reinforcement column can be formed.

  In the box-making apparatus of the present invention, since the molding portion having the edge wall bending member for bending the edge wall with respect to the end wall is provided, it is possible to automatically box the packaging box provided with the reinforcing columns at the corners. Therefore, the convenience and the workability at the article manufacturer can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows schematic structure of the box-making apparatus of this invention. The perspective view which shows the assembled packaging box. The top view of the packaging box of FIG. 2A. The top view which shows the blank of a packaging box. The perspective view which shows the state which sealed the packaging box. The perspective view which shows the assembly process of a packaging box. The perspective view which shows the other assembly process of a packaging box. The perspective view which shows the blank in a 1st operation state. The perspective view which shows the blank in a 2nd operation state. The front view which shows the temporary folding part of the box-making apparatus. The top view of FIG. 7A. The perspective view which shows the principal part of a temporary folding part. The front view which shows the 1st operation state of a temporary folding part. The front view which shows the 2nd operation state of a temporary folding part. The front view which shows the 3rd operation state of a temporary folding part. The front view which shows the reinforcement pillar temporary assembly part of a box making apparatus. The top view of FIG. 10A. The perspective view which shows the inclination wall bending member of a reinforcement pillar temporary assembly part. The front view which shows the 1st operation state of a reinforcement pillar temporary assembly part. The front view which shows the 2nd operation state of a reinforcement pillar temporary assembly part. The front view which shows the 3rd operation state of a reinforcement pillar temporary assembly part. The front view which shows the box making part of a box making apparatus. The side view of FIG. 13A. The top view of FIG. 13A. The front view which shows the 1st operation state of an end wall bending member. The front view which shows the 2nd operation state of an end wall bending member. The front view which shows the 3rd operation state of an end wall bending member. The front view which shows the 1st operation state of an edge wall bending member. The front view which shows the 2nd operation state of an edge wall bending member. The front view which shows the 1st operation state of a side wall bending member. The front view which shows the 2nd operation state of a side wall bending member. The front view which shows the 3rd operation state of a side wall bending member. The perspective view which shows the other packaging box which can be automatically boxed with a box-making apparatus. The top view which shows the blank of the packaging box of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a box-making apparatus 100 for a specific packaging box 10A according to an embodiment of the present invention. As shown in FIGS. 2A and 2B, the packaging box 10A includes a bottom wall 12, a pair of end walls 13 and 13 erected at both ends of the bottom wall 12, and a pair of side walls erected at both sides of the bottom wall 12. It has 15,15 and. In the packaging box 10A, a cylindrical reinforcing column 18 is provided inside the corner surrounded by the end walls 13, 13 and the side walls 15, 15. The packaging box 10A is formed by punching a cardboard sheet made of paper as a continuous blank 10B shown in FIG. 3 by a well-known carton punching device. The box making apparatus 100 automatically forms the blank 10B shown in FIG. 3 as a packaging box 10A shown in FIGS. 2A and 2B.

(Details of packaging box)
First, the packaging box 10A automatically boxed by the box-making apparatus 100 will be described. As shown in FIGS. 2A and 2B, the bottom wall 12 is in the shape of a horizontally long square, and closes the bottom of the outer peripheral wall surrounded by the end walls 13, 13 and the side walls 15, 15. The end wall 13 has a substantially square shape, and is connected to the opposite end edge (first edge) of the bottom wall 12 via a fold line 14. The side wall 15 is a horizontally long rectangular shape, and is connected to another pair of opposite side edges (second edge) of the bottom wall 12 via a fold line 16.

  The overall height of the side wall 15 is less than the overall height of the end wall 13. A large opening is formed on the upper side of the side wall 15 on the side of the packaging box 10A. Referring to FIG. 3, the bottom wall 12 is centrally disposed, and the end walls 13 and 13 and the side walls 15 and 15 are arranged so as to protrude in four directions from the bottom wall 12. The folding lines 14 and 16 are general-purpose ruled lines (shown by alternate long and short dash lines in FIG. 3) formed by forming a crease so as to compress the thickness of the corrugated cardboard sheet. The fold line 16 extends to intersect the fold line 14 in the orthogonal direction.

  The reinforcing post 18 extends upward from the bottom wall 12 and protrudes upward from the upper end of the side wall 15. The reinforcing post 18 is connected to the end wall 13 and adhered (adhered) to the adjacently disposed side wall 15 with an adhesive so that the top (the portion of the third folding curve 24 described later) protrudes inward. It is generally formed in the shape of a triangular cylinder. Specifically, an edge wall 19 is connected to the end wall 13, a first inclined wall 21 is connected to the edge wall 19, and a second inclined wall 23 is connected to the first inclined wall 21. The fixed wall 25 is continuously provided on the second inclined wall 23.

  The edge wall 19, the first inclined wall 21, the second inclined wall 23, and the fixing wall 25 extend from the bottom wall 12, which is the lower end of the packaging box 10A, to the upper end of the end wall 13. Referring to FIG. 3, these are respectively elongated rectangular shapes, and are arranged in order from the end wall 13 along the direction in which the side wall 15 protrudes from the bottom wall 12. The reinforcing column 18 is generally configured of an edge wall 19, a first inclined wall 21 and a second inclined wall 23. Depending on the position where the fixing wall 25 is fixed to the end wall 13, a part of the end wall 13 may constitute a part of the reinforcing post 18.

  The edge wall 19 is connected to a side edge located on the side wall 15 side of the end wall 13 via a first fold line 20. The edge wall 19 is bent in a direction orthogonal to the end wall 13, disposed on the inner side surface of the side wall 15, and fixed to the side wall 15. The first fold line 20 extends orthogonal to the fold lines 14 and 16 of the edge of the bottom wall 12. Referring to FIG. 3, the first fold line 20 is a general ruled line and is formed to extend parallel to the fold line 16.

  The first inclined wall 21 is connected to the edge wall 19 via a second fold line 22. The first inclined wall 21 is bent so that the angle between the first inclined wall 21 and the edge wall 19 is less than 90 degrees. Thereby, the first inclined wall 21 extends obliquely toward the center of the end wall 13. Referring to FIG. 3, the second fold line 22 is a crease having a good foldability, and extends in parallel along the first fold line 20. The ruled line comprises a general-purpose ruled line and a cutting line spaced apart along the general-purpose ruled line.

  The second inclined wall 23 is connected to the first inclined wall 21 via the third fold line 24. The second inclined wall 23 is bent at a predetermined angle with respect to the first inclined wall 21 so as to extend obliquely toward the first bending line 20 at the boundary between the end wall 13 and the edge wall 19. Referring to FIG. 3, the third fold line 24 is a general ruled line and extends in parallel along the second fold line 22.

  The fixed wall 25 is connected to the second inclined wall 23 via the fourth fold line 26. The fixing wall 25 is disposed so as to overlap the end wall 13 so that the fourth bending line 26 is located on the first bending line 20 side, and is fixed to the inner surface of the end wall 13 by an adhesive. The fixed wall 25 is bent so that the angle between the fixed wall 25 and the second inclined wall 23 is less than 90 degrees. Referring to FIG. 3, the fourth fold line 26 consists of a lead and extends in parallel along the third fold line 24.

  When an article is housed inside the packaging box 10A and the opening at the top of the side wall 15 is closed, a separate lid member 30 is disposed as shown in FIG. Referring to FIG. 2A, in the packaging box 10A, a crosspiece wall 28 for attaching the lid member 30 to the upper end of the end wall 13 is continuously provided via a fold line 29. The fold line 29 is formed of perforation-like folds provided with a plurality of cutting lines at predetermined intervals. The lid member 30 includes a top wall 31 that closes the space between the crosspieces 28, 28 at both ends, and a pair of side walls 32, 32 that close the side walls 15, 15 of the packaging box 10A. The side walls 32 and 32 are connected to the edges on both sides of the top wall 31 via fold lines 33.

  Since the packaging box 10A is provided with the cylindrical reinforcing columns 18 at the four corners, it is strong in pressure resistance and will not be crushed even if stacked during transportation. Thus, damage to the internal articles can be suppressed. Further, when the article is sold at the store at the store where it was transported, the packaging box 10A can be stacked in a state where the cover member 30 is removed. In addition, since the packaging box 10A has a large opening above the side wall 15, the contained articles can be largely exposed.

(An example of hand assembling the packaging box)
When assembling the blank 10B shown in FIG. 3 as shown in FIGS. 2A and 2B, for example, as shown in FIG. 5A, the edge wall 19 and the first inclined wall 21 are mountain-folded along the second fold line 22. . Further, the first inclined wall 21 and the second inclined wall 23 are mountain-folded along the third fold line 24. Further, the second inclined wall 23 and the fixing wall 25 are valley-folded along the fourth fold line 26. Then, the fourth fold line 26 is positioned in the vicinity of the first fold line 20, and the fixed wall 25 and the end wall 13 are bonded with an adhesive. At the time of assembly of the reinforcing post 18, it is necessary to fix the fixing wall 25 to the end wall 13 by projecting the portion of the third bending curve 24 between the first inclined wall 21 and the second inclined wall 23. Therefore, the assembling workability is bad.

  Next, as shown in FIG. 5B, the end wall 13 and the edge wall 19 are mountain-folded along the first fold line 20. Thereby, the second inclined wall 23 and the fixing wall 25 are simultaneously valley-folded. The reinforcement column 18 holds the state of FIG. 5B bent inward with respect to the end wall 13 and bends the end wall 13 along the fold line 14 with respect to the bottom wall 12. Alternatively, after bending the end wall 13 with respect to the bottom wall 12, the reinforcing post 18 may be bent with respect to the end wall 13. At this time, the first fold line 20 between the end wall 13 and the edge wall 19 and the fourth fold line 26 between the fixed wall 25 fixed to the end wall 13 and the second inclined wall 23 are located close to each other. Therefore, the repulsive force in the state in which the reinforcing column 18 is bent with respect to the end wall 13 is strong.

  Finally, the side wall 15 is folded with respect to the bottom wall 12 while keeping the end wall 13 folded with respect to the bottom wall 12 and the reinforcing post 18 folded with respect to the end wall 13. Then, the side wall 15 and the edge wall 19 of the reinforcing pillar 18 are attached with an adhesive. Under the present circumstances, it is very difficult to hold | maintain the reinforcement pillar 18 with strong repulsive force with respect to the end wall 13 in the bend | folded state, and to hold | maintain the end wall 13 in the bend | folded state with respect to the bottom wall 12 very much. In this state, the side wall 15 is bent with respect to the bottom wall 12 and the manual assembly of attaching the side wall 15 to the edge wall 19 is extremely difficult. Therefore, in the present invention, the packaging box 10A can be automatically boxed by the box-making apparatus 100.

  In addition, although the end wall 13 and the side wall 15 mentioned and demonstrated the example which consists of flat form, it may be a curved or curved shape. In addition, although the packaging box 10A is formed by punching a paper-made cardboard sheet, it may be formed by punching a resin-made cardboard sheet. Moreover, it is not restricted to a corrugated-cardboard sheet, You may form with a single thick paper or a resin sheet.

(Details of box-making device)
The box-making apparatus 100 is a setup case that performs a sealing process of sealing the packaging box 10A by the lid member 30 after the box-making process of automatically boxing the packaging box 10A, and a storage process of storing articles in the packaging box 10A. Used. This setup caser includes a box-making apparatus 100, a storage device, and a sealing device. A conveyor such as a belt conveyor or a roller conveyor for conveying the packaging box 10A is disposed between the respective devices.

  The box-making apparatus 100 assembles the packaging box 10A shown in FIG. 2A and FIG. 2B by bending the predetermined part of the blank 10B shown in FIG. 3 and sticking the predetermined part with the adhesives 35A and 35B. The storage device stores an article such as a standing pouch containing a liquid in the interior of the packaging box 10A. The sealing device arranges the lid member 30 on the upper part of the packaging box 10A, and seals the packaging box 10A by adhering a predetermined portion with an adhesive. As the adhesives 35A and 35B, an adhesive of a vinyl acetate emulsion type or an adhesive (hot melt) made of a hot-melt resin is used.

(Whole structure of box-making device)
As shown in FIG. 1, the box-making apparatus 100 includes a sheet feeding unit 102 that supplies the stacked blanks 10B one by one, a temporary folding unit 105 that folds a predetermined portion of the blanks 10B, and the end wall 13. The reinforcement column temporary assembly part 140 which fixes the fixed wall 25 and which assembles the reinforcement pillar 18 temporarily, and the shaping | molding part 160 which assembles packaging box 10A are provided. Further, in the box-making apparatus 100, a first application portion 135 for applying the adhesive 35A to the end wall 13 of the blank 10B being transported is disposed between the temporary folding portion 105 and the reinforcing column temporary assembly portion 140, A second application portion 155 for applying the adhesive 35B to the edge wall 19 of the blank 10B being conveyed is disposed between the column temporary assembly portion 140 and the forming portion 160.

  The box-making apparatus 100 includes a frame (not shown) having an L-shape in plan view. In the frame, the sheet feeding unit 102 and the temporary folding portion 105 are disposed adjacent to each other in the Y direction, and the temporary folding portion 105, the reinforcing column temporary assembling portion 140, and the molding portion 160 are disposed adjacent to each other in the X direction. The blank 10B is disposed in the sheet feeding unit 102 such that the end walls 13, 13 protrude in the X direction, and the side walls 15, 15 protrude in the Y direction. Then, the blank 10B is transported in the X direction, the Y direction, or the Z direction while maintaining its posture. The conveying means of the blank 10B includes, for example, a guide rail and a suction member connected to a suction pump. The suction member holds the blank 10B by suction and the suction member is moved to move the blank toward the next step. In addition, if a conveyance means is a structure which can convey the blank 10B, maintaining the attitude | position of XY direction, various changes are possible.

(Details of the paper feed unit)
The sheet feeding unit 102 is provided with a lift that arranges a plurality of blanks 10B in layers and arranges the uppermost blanks 10B at a set sheet feeding position. Then, one blank 10B is taken upward (in the Z direction) by the transport means, and discharged (supplied) in the Y direction toward the temporary folding portion 105.

(Details of temporary folds)
As shown in FIGS. 6A and 6B, in the temporary folding portion 105, the edge wall 19 is bent with respect to the end wall 13 and the second inclined wall 23 is bent with respect to the first inclined wall 21 to form a blank 10B. Make a compromise along the first fold 20 and the third fold 24. Thereafter, the folded blank 10B is discharged toward the reinforcing column temporary assembly 140 in the X direction.

  As shown in FIGS. 7A to 8, the temporary folding portion 105 includes a fixed guide member 107 disposed below the edge wall 19 and a movable movable guide member 118 disposed along the first inclined wall 21. And a temporary bending member 122 for bending the first inclined wall 21 and the second inclined wall 23 along the third folding line 24. The temporary folding portion 105 also includes a suction unit 130 that holds the lower portion of the blank 10B and extracts the blank 10B downward from the fixed guide member 107.

  As shown most clearly in FIG. 8, the fixed guide member 107 has a generally L-shaped cross section, and includes a horizontally extending first flat plate portion 108 and a vertically extending second flat plate portion 109. . The first flat plate portion 108 extends from the lower portion of the edge wall 19 of the blank 10B to the lower portion of the fixing wall 25. The second flat plate portion 109 extends at a lower portion of the edge wall 19 along the first fold line 20 in a direction (downward in the Z direction) intersecting the blank 10B (the first flat plate portion 108). A curved plate portion 110 curved with a predetermined curvature is provided between the first flat plate portion 108 and the second flat plate portion 109.

  The fixed guide member 107 positioned on the front side in the transport direction Y from the sheet feeding unit 102 is provided with a stopper 112 for stopping the supplied blank 10B. Further, on the rear side in the transport direction Y, an adjustment member 114 for disposing the blank 10B at a fixed position is disposed. The adjusting member 114 includes a pressing member 115 and a driving member 116 such as a cylinder that drives the pressing member 115 back and forth. The pressing member 115 is advanced by the driving member 116 in a state in which the blanks 10B are disposed on the four fixed guide members 107. As a result, the blank 10B is moved on the fixed guide member 107 by the pressing member 115 and abutted against the stopper 112, whereby the blank 10B is disposed at a fixed position.

  The movable guide members 118 are arranged at four positions so as to be located above the end wall 13 of the blank 10B. The movable guide member 118 is located on the opposite side of the second flat plate portion 109 of the fixed guide member 107 along the first bending line 20, and disposed parallel to the second flat plate portion 109 at a predetermined interval. It is done. The movable guide member 118 has an elongated plate shape with one end located on the bottom wall 12 and the other end located on the crosspiece wall 28. The movable guide member 118 is movably disposed in the Z direction orthogonal to the blank 10B extending on the XY plane by a drive mechanism (not shown).

  The overall height of the movable guide member 118 is formed to be substantially the same as the distance between the first fold line 20 to the third fold line 24. The lower end of the movable guide member 118 is a first bent portion 119 that bends the edge wall 19 along the first bending line 20 with respect to the end wall 13. The first bent portion 119 is a horizontal surface extending in parallel along the end wall 13. The edge wall 19 is bent in the direction orthogonal to the end wall 13 by bending the edge wall 19 around the first bending portion 119. The upper end of the movable guide member 118 is a second bending portion 120 that bends the second inclined wall 23 along the third bending line 24 with respect to the first inclined wall 21. The second bent portion 120 is an inclined surface which inclines downward (in the moving direction of the movable guide member 118) from the outside which is the fixed guide member 107 side toward the inside. By bending the second inclined wall 23 around the second bending portion 120, the angle formed between the second inclined wall 23 and the first inclined wall 21 is bent to an acute angle of less than 90 degrees.

  The temporary folding member 122 is disposed in a space between the first flat plate portion 108 and the second flat plate portion 109 of the fixed guide member 107, and the second folding plate 122 is placed on the first inclined wall 21 with the movable guide member 118 as a center. The inclined wall 23 is bent. The temporary folding members 122 are disposed in a pair with respect to one rotation shaft 126. The temporary folding member 122 includes a base 123 and a protrusion 124 protruding from the tip of the base 123 toward the second inclined wall 23. The base 123 is non-rotatably fixed relative to the rotation shaft 126. The protrusion 124 protrudes inward from the base 123 toward the fixed guide member 107. As most clearly shown in FIG. 8, the curved plate portion 110 of the fixed guide member 107 is provided with an insertion hole 111 through which the protrusion 124 is inserted. The projecting portion 124 protrudes to the inside of the fixed guide member 107 through the insertion hole 111 to abut (press) the second inclined wall 23, and the second inclination centering on the second bending portion 120 of the movable guide member 118. The wall 23 is bent relative to the first inclined wall 21.

  As shown most clearly in FIG. 7A, the bracket 127 is relatively non-rotatably fixed to the rotating shaft 126. A rod 129 of a drive member 128 such as a cylinder is relatively rotatably attached to the end of the bracket 127. By driving the drive member 128 (forcing the rod 129), the rotary shaft 126 is normally rotated via the bracket 127, and the projection 124 of the temporary folding member 122 protrudes from the fixed guide member 107. By releasing the drive of the drive member 128 (retracting the rod 129), the rotary shaft 126 is reversely rotated via the bracket 127, and the projection 124 of the temporary folding member 122 is retracted into the fixed guide member 107.

  The adsorption unit 130 is disposed at the lower part of the bottom wall 12. The suction unit 130 includes suction members 131 (four in the figure) connected to a suction pump (not shown). These suction members 131 are arranged to be reciprocable (linearly moveable) in the Z direction between a holding position shown in FIG. 9A and a blank conveyance position shown in FIG. 9C by a drive member (not shown).

(Operation of temporary folding part)
When the blank 10B is disposed on the fixed guide member 107, the temporary folding portion 105 adjusts the position of the blank 10B by the adjustment member 114. Next, as shown in FIGS. 6A and 9A, the suction member 131 is moved to the holding position, and the movable guide member 118 is moved downward from the raised standby position. When the movable guide member 118 moves downward beyond the first flat plate portion 108 of the fixed guide member 107, the movable guide member 118 and the fixed guide member 107 make the edge wall 19 a first bending curve 20 with respect to the end wall 13. Is folded along the In addition, the whole of the blank 10 B including the bottom wall 12, the end wall 13, and the side wall 15 is moved downward by the pressing of the movable guide member 118.

  When the movable guide member 118 is lowered to the bent position at the lower end, the bottom wall 12 of the blank 10B is sucked and held by the suction member 131. In addition, the movable guide member 118 is located inside the edge wall 19 and the first inclined wall 21, and the second inclined wall 23 protrudes upward from the second bent portion 120 at the upper end. In this state, by rotating the temporary bending member 122 in the forward direction, the movable guide member 118 and the projecting portion 124 of the temporary bending member 122 cause the first inclined wall 21 to move relative to the first inclined wall 21 as shown in FIGS. 6B and 9B. The two inclined walls 23 are bent along the third fold line 24.

  Next, as shown in FIG. 9C, the temporary folding member 122 is reversely rotated to retract the protrusion 124 into the fixed guide member 107, and then the movable guide member 118 is raised to the standby position. As a result, the first inclined wall 21 and the second inclined wall 23 return to a substantially flat state by the spread by the movable guide member 118 and the stiffness (stiffness) of the corrugated cardboard sheet. Thereafter, the suction member 131 is lowered to the blank conveyance position, so that the blank 10B is pulled downward from between the fixed guide members 107 and 107. Thereby, the end wall 13 and the edge wall 19 of the blank 10B return to the flat state by the waist of the corrugated sheet.

  As a result, the blank 10B is folded along the first fold line 20 between the end wall 13 and the edge wall 19 and the third fold line between the first inclined wall 21 and the second inclined wall 23 A compromise is placed along 24. Although the suction member 131 for holding the blank 10B is raised simultaneously with the lowering of the movable guide member 118, it may be raised after the lowering of the movable guide member 118 or before the lowering of the movable guide member 118. You may raise it. Further, instead of the suction member 131, a dedicated holding mechanism for holding the lower surface of the blank 10B may be provided.

  As described above, since the temporary folding portion 105 of the present embodiment includes the temporary folding member 122 that folds the second inclined wall 23 with respect to the first inclined wall 21, the folding is performed along the third folding line 24. Can be attached. Further, the movable guide member 118 disposed along the first inclined wall 21 is provided. Moreover, the temporary folding member 122 is provided with a base portion 123 rotatably supported and a projecting portion 124 projecting toward the second inclined wall 23. Therefore, by pressing the second inclined wall 23 with the projecting portion 124, the second inclined wall 23 can be reliably bent with respect to the first inclined wall 21 with the movable guide member 118 as a center.

  Further, since the movable guide member 118 also has a function of bending the edge wall 19 with respect to the end wall 13 and providing a fold along the first folding line 20, the number of parts of the temporary folding portion 105 is reduced, The entire box making apparatus 100 can be simplified. Moreover, since the step of folding along the first folding line 20 and the step of folding along the third folding line 24 can be performed successively, productivity can be improved. And since this temporary folding process is performed in the flat state which does not form the reinforcement pillar 18 in the blank 10B, the blank 10B can be easily and reliably bent and folded.

(Details of the first application unit)
The first application unit 135 includes a pair of application devices 136 and 136 arranged at predetermined intervals in the Y direction orthogonal to the transport direction X from the temporary folding unit 105 toward the reinforcing column temporary assembly unit 140. . By spraying the adhesive 35A from the coating device 136, bonding is performed so as to extend in the X direction in the vicinity of the first folding curve 20 (four places in total) which is a portion on which the fixing wall 25 of the end wall 13 is overlapped. The agent 35A is applied linearly. A guide for returning the temporarily folded end wall 13 and the edge wall 19, the first inclined wall 21 and the second inclined wall 23 to a flat state during conveyance between the first application portion 135 and the temporary folding portion 105. The members may be arranged.

(Details of reinforcement column temporary assembly)
As shown in FIG. 5A, in the reinforcing column temporary assembly portion 140, the fixing wall 25 is disposed on the end wall 13 by bending the first inclined wall 21 with respect to the edge wall 19. Then, the fixing wall 25 and the end wall 13 are pressure-welded and fixed by an adhesive 35A, whereby a triangular cylindrical reinforcing column 18 is formed. Thereafter, the blank 10B in which the reinforcing pillars 18 are formed is discharged in the X direction toward the forming portion 160.

  As shown in FIG. 10A to FIG. 11, the reinforcing column temporary assembly portion 140 is overlapped with the holding unit 142 for holding the blank 10B and the inclined wall bending member 146 for bending the first inclined wall 21 with respect to the edge wall 19 The end wall 13 and the fixing wall 25 are press-contacted and fixed to each other.

  As shown most clearly in FIG. 10A, the holding unit 142 is provided with a guide rail 143 for mounting the blank 10B and a suction member 144 for holding the blank 10B by suction. The guide rails 143 are arranged in a pair at intervals in the Y direction. The guide rail 143 is located below the bottom wall 12 and the end walls 13 and 13 and extends in the X direction. Referring to FIG. 12C, the guide rail 143 is disposed at the lower part of the fixing wall 25 overlapping the end wall 13. The suction members 144 are connected to a suction pump (not shown), and are arranged at four positions so as to be located at the lower part of the edge wall 19. The suction member 144 drives the inclined wall bending member 146 in a state in which the edge wall 19 is adsorbed, thereby preventing the part other than the tip side from the first inclined wall 21 to the fixing wall 25 from rising.

  The inclined wall bending member 146 is a flat plate extending from the lower portion of the second inclined wall 23 to the outer side beyond the fixing wall 25. As shown most clearly in FIG. 11, the inclined wall bending member 146 is provided with a pair of air vent holes 147, 147 in a square shape. Further, the inclined wall bending member 146 is provided with a chamfered portion 148 at a tip end slidingly in contact with the first inclined wall 21 and the second inclined wall 23 so as to have a substantially semicircular cross section. Referring to FIG. 10A, the chamfered portion 148 is located in the vicinity of the third fold line 24 below the second inclined wall 23 in the standby position before driving. Referring to FIG. 12C, the chamfered portion 148 is located on the second inclined wall 23 beyond the top (third bending line 24) of the reinforcing post 18 located on the edge wall 19 in the positioning position after driving. .

  The inclined wall bending member 146 is provided with a downwardly projecting connecting member 149. As shown most clearly in FIG. 10A, a pair of link members 151A, 151B are rotatably mounted on the connecting member 149. The other ends of the link members 151A and 151B are rotatably pivotally attached to the frame of the box-making apparatus 100. The lower link member 151B is connected to a drive member 152 such as a motor. The drive of the drive member 152 moves the inclined wall bending member 146 via the link member 151B and the connecting member 149. The inclined wall bending member 146 moves (rotates) upward in the Z direction, inward in the Y direction, and downward in the Z direction while maintaining the state of extending in the horizontal direction by the link member 151A.

  The pressure contact member 153 is disposed on the fixing wall 25 superimposed on the end wall 13 by the drive of the inclined wall bending member 146. The pressure contact member 153 is a flat plate of a predetermined thickness extending along the guide rail 143. The pressure contact member 153 is disposed movably in the Z direction by a drive member (not shown).

(Operation of reinforcement column temporary assembly)
The blank 10B is supplied to the reinforcing column temporary assembly portion 140 in the standby state shown in FIG. 10A. When the blank 10B is placed at a predetermined position by an adjustment mechanism (not shown), the suction member 144 sucks and holds the blank 10B. Next, the inclined wall bending member 146 is driven by the driving member 152. Then, the link members 151A and 151B rotate clockwise from the rotation angle position of approximately 8 o'clock in FIG. 10A.

  As shown in FIG. 12A, first, the inclined wall bending member 146 is moved upward through the link members 151A and 151B. In addition, when the rotational angle position of the link members 151A and 151B exceeds the rotational angle position at 9 o'clock in FIG. 12A, the inclined wall bending member 146 moves upward inward (right in the figure). Thereby, the first inclined wall 21 is bent with respect to the edge wall 19 by pressing the second inclined wall 23 upward in the blank 10B. In addition, the second inclined wall 23 is bent relative to the first inclined wall 21 along the folded third fold line 24.

  When the link members 151A and 151B rotate beyond the rotational angle position of 11 o'clock in FIG. 12A, the inclined wall bending member 146 increases the amount of inward movement. When the link members 151A and 151B rotate beyond the 12 o'clock rotation angle position shown in FIG. 12B, the link members 151A and 151B are moved inward and downward. In this state, the inclined wall bending member 146 presses the vicinity of the third bending curve 24 to which the second inclined wall 23 is folded. Further, the first inclined wall 21 of the blank 10B is bent in a direction substantially orthogonal to the edge wall 19. Therefore, in the blank 10B, since the repulsive force of the first inclined wall 21 against the edge wall 19 becomes stronger, the bending amount of the first inclined wall 21 with respect to the edge wall 19 makes the second inclined wall 23 with respect to the first inclined wall 21 The amount of bending of the

  Then, when the bending of the second inclined wall 23 with respect to the first inclined wall 21 is approximately 90 degrees, the fixed wall 25 is positioned on the end wall 13. In this state, the pressure contact member 153 is lowered from the standby position shown in FIG. 10A to the pressure contact position shown in FIG. 12C. Thereby, the fixed wall 25 of the blank 10B is broken with respect to the second inclined wall 23. Further, the fixing wall 25 and the end wall 13 are attached by the adhesive 35A by pressing the fixing wall 25 onto the end wall 13.

  Thereby, as shown to FIG. 5A, the triangular cylinder-shaped reinforcement pillar 18 is temporarily assembled. In the state shown in FIG. 12C, the sloped wall bending member 146 is positioned on the top (third folding line 24) of the reinforcement column 18 formed by the first sloped wall 21 and the second sloped wall 23 at the tip end. doing. By adjusting the height of the top with the sloped wall bending member 146, the amount of protrusion of the reinforcing post 18 can be adjusted, and the arrangement position of the fixing wall 25 with respect to the end wall 13 can be adjusted.

  When the reinforcing post 18 is formed in this manner, the pressure contact member 153 is raised and returned to the standby position, and the drive member 152 is reversed to rotate the inclined wall bending member 146 counterclockwise and returned to the standby position. Thereafter, the suction by the suction member 144 is released.

  Thus, in the box-making apparatus 100 of the present embodiment, the third fold line 24 between the first inclined wall 21 and the second inclined wall 23 of the reinforcing column 18 is made in front of the reinforcing column temporary assembly portion 140. Since the temporary folding part 105 which gives a fold along is provided, when forming the reinforcement pillar 18, the second inclined wall 23 can be bent with respect to the first inclined wall 21. Thus, the top of the reinforcing post 18 which is a portion of the third bending line 24 can be reliably projected.

(Details of the second application unit)
As shown in FIGS. 1 and 13C, the second application unit 155 includes a pair of application devices 156 and 156 arranged at predetermined intervals in the Y direction. By spraying the adhesive 35B from the coating device 156, the adhesive 35B is linearly applied in the vicinity of the first fold line 20 of the edge wall 19 so as to extend in the X direction. Specifically, as shown in FIG. 14B, the adhesive 35B is applied only to the portion where the side walls 15 of the edge wall 19 overlap (four places in total).

(Details of molding section)
As shown in FIG. 5B, in the molding portion 160, the reinforcing column 18 is bent with respect to the end wall 13 and the end wall 13 is bent with respect to the bottom wall 12, and then the bottom wall 12 is held while maintaining this state. Side wall 15 is bent. Thus, the side wall 15 is attached to the edge wall 19 coated with the adhesive 35B. Thus, the packaging box 10A shown in FIGS. 2A and 2B is assembled.

  As shown in FIGS. 13A to 13C, the molding unit 160 includes a positioning unit 162 that positions the blank 10B in a fixed position. Further, the molding portion 160 is an end wall bending member 168 that bends the end wall 13 with respect to the bottom wall 12 and an edge wall bending member that bends the entire reinforcing column 18 by bending the edge wall 19 with respect to the end wall 13 And a side wall bending member 181 for bending the side wall 15 with respect to the bottom wall 12. Among them, the edge wall bending member 177 is disposed at the end wall bending member 168.

  The positioning unit 162 includes a guide rail 163 on which the blank 10B is placed, and a pressing frame 164 that positions the bottom wall 12 of the blank 10B from above. Further, the positioning unit 162 is provided with a suction member (not shown) similar to the suction member 131 for suction-holding the bottom wall 12 of the blank 10B. The guide rails 163 are disposed below the bottom wall 12 and the end walls 13 and 13, and are disposed in a pair so as to extend in the X direction at intervals in the Y direction. The pressing frame 164 includes a first plate portion 165 that is in contact with the bottom wall 12 and a pair of second plate portions 166 and 166 protruding upward in the Z direction from both ends of the first plate portion 165. . The first plate portion 165 has an octagonal shape in plan view in which the corner portion corresponding to the triangular cylindrical reinforcing column 18 is chamfered. The pressing frame 164 is disposed movably in the Z direction by a drive member (not shown).

  The end wall bending member 168 includes a rotating frame 169 arranged to be located below the end wall 13 in the standby position before operation. The rotating frame 169 is rotatably disposed on the frame of the box-making apparatus 100 via the link mechanism 171 so as to be able to rotate upward and inward. The link mechanism 171 includes a pair of first link members 172 and 172 rotatably pivotally attached to the rotation frame 169 at one end side. Further, the link mechanism 171 includes a pair of second link members 173 and 173 rotatably pivotally attached to the first link members 172 and 172, respectively. The ends of the second link members 173 and 173 are rotatably pivotally attached to the frame. Further, one second link member 173 is connected to a driving member such as a motor (not shown). Further, on the rotating frame 169, a suction member 175 connected to a suction pump (not shown) is disposed. The tip (suction part) of the suction member 175 protrudes from the end of the rotating frame 169.

  The end wall bending member 168 is a bending in which the rotation frame 169 shown in FIG. 14C is rotated to a rotation angle position of about 12 o'clock from the standby position where the rotation frame 169 shown in FIG. It can rotate to the position. With the rotary frame 169 rotated to the rotational angle position of 9 o'clock as shown in FIG. 13B, the suction pump is driven to suction-hold the end wall 13 by the suction member 175. The end wall 13 can be bent relative to the bottom wall 12 by rotating the rotating frame 169 via the link mechanism 171 while holding the suction state by the suction member 175.

  As shown in FIGS. 13A to 13C, the edge bending member 177 is rotatably disposed on the rotating frame 169 of the end wall bending member 168 so as to be located at the lower part of the edge wall 19 (the reinforcing post 18). It is a flat plate. This edge wall bending member 177 is disposed on the rotating frame 169 so as to hold a portion exposed from the upper end of the side wall 15 of the edge wall 19 in FIG. 2A. A rod 179 of a drive member 178 such as a cylinder is relatively rotatably attached to the edge wall bending member 177. By driving the driving member 178 (advancing and retracting the rod 179), the edge wall bending member 177 is rotated in the horizontally extending rotational angle position as shown in FIG. 15A and in the vertical bending direction as shown in FIG. 15B. It is possible to rotate between the angular position and the bending position.

  As shown in FIG. 16A, the side wall bending member 181 is disposed in the vicinity of the bending line 16 at the lower portion of the side wall 15. The side wall bending member 181 is substantially L-shaped in cross section, and extends in the horizontal direction along the side wall 15 of the blank 10B in a direction perpendicular to the first plane plate portion 182 and the first plane plate portion 182. And a second flat plate portion 183 extending in the vertical direction. The total length of the second flat plate portion 183 is formed to be longer than the total height from the folding line 16 of the side wall 15 to the tip. A curved plate portion 184 curved at a predetermined curvature is provided between the first flat plate portion 182 and the second flat plate portion 183. The side wall bending member 181 is disposed movably in the Z direction by a driving member (not shown) via the elevating frame 186. Thereby, the side wall bending member 181 is movable between the lowered position shown in FIG. 16A and the raised position shown in FIG. 16B.

  The side wall bending member 181 has a function to fix the overlapped edge wall 19 and the side wall 15 by the adhesive 35 B by pressing the side wall 15 against the edge wall 19. The side wall bending member 181 is disposed with respect to the elevating frame 186 via a driving member 187 such as a cylinder. The drive member 187 moves the side wall bending member 181 between a non-pressure contact position located at a predetermined distance from the edge wall 19 and a pressure contact position generally in surface contact with the edge wall 19 via the side wall 15. It is possible.

(Operation of molding unit)
As shown in FIG. 14A, when the blank 10B is conveyed to the forming unit 160, the rotary frame 169 is moved to the receiving position inclined outward and downward via the link mechanism 171. Thus, in a state where the blank 10B is prevented from interfering with the end wall bending member 168, the blank 10B in which the reinforcing pillars 18 are temporarily assembled is transported as illustrated.

  When the blank 10B is placed at a fixed position by an adjustment mechanism (not shown), the pressing frame 164 is lowered to position the bottom wall 12 as shown in FIG. 15A. Further, the rotary frame 169 is rotated to be positioned in the horizontal direction via the link mechanism 171, and the end wall 13 is suctioned and held by the suction member 175.

  Next, as shown in FIG. 14B and FIG. 15B, by driving the drive member 178 and rotating the edge wall bending member 177, the reinforcing column bending step (first step) is performed. In the reinforcing column bending step, a fourth bending line located inside of the first bending line 20 by bending the edge wall 19 with respect to the end wall 13 along the first bending line 20 having a fold. The second inclined wall 23 is also folded along the fixed wall 25 with respect to the fixed wall 25. As a result, as shown in FIG. 5B, the entire triangular cylindrical reinforcing column 18 is bent with respect to the end wall 13. Further, the edge wall 19 constituting the reinforcing pillar 18 is bent so as to be bent in the direction orthogonal to the end wall 13. At this time, in the box-making apparatus 100 of the present embodiment, since the first fold line 20 between the end wall 13 and the edge wall 19 is folded at the temporary folding portion 105 of the previous step, The bendability of the reinforcement column 18 can be improved.

  Next, as shown in FIG. 14C, the end wall bending step (second step) is performed by rotating the end wall bending member 168 via the link mechanism 171. This end wall bending step is carried out while the bent state of the reinforcing post 18 with respect to the end wall 13 is held by the edge wall bending member 177. Thus, the end wall 13 is bent so as to be orthogonal to the bottom wall 12. Under the present circumstances, since the edge wall bending member 177 of this embodiment is rotatably arrange | positioned at the end wall bending member 168, it bends the end wall 13 with respect to the bottom wall 12, and also with respect to the end wall 13. The reinforcement column 18 can be reliably held in a bent state.

  Next, as shown in FIG. 16B, the side wall bending step (third step) is performed by raising the side wall bending member 181 via the elevating frame 186. In the side wall bending step, the side wall bending member 181 is first performed at a non-pressure contact position where a gap set with respect to the edge wall 19 is formed as illustrated. When the side wall 15 is bent upward with respect to the bottom wall 12 by the rising of the side wall bending member 181, as shown in FIG. 16C, the side wall bending member 181 is advanced by the driving member 187 and the side wall fixing step (fourth) Process). Thus, the side wall 15 is pressed against the edge wall 19, and the side wall 15 and the edge wall 19 are fixed by the adhesive 35B.

  Although the reinforcing column bending step which is the first step to the side wall bending step which is the third step are respectively performed in order, it is preferable that the execution start timing is during the execution of the previous step. And in this embodiment, in order to perform an end wall bending process (2nd process) after performing a reinforcement pillar bending process (1st process), a side wall bending process (D) is performed during execution of an end wall bending process. Starting the execution of the third step) does not inhibit the assembly operation. Therefore, since the bending start time of the side wall 15 by the side wall bending member 181 can be advanced, the productivity of the packaging box 10A can be improved.

  When the packaging box 10A is assembled by the molding unit 160, the side wall bending member 181 is retracted from the pressure contact position to the non-pressure contact position, and then the side wall bending member 181 is lowered from the raised position to the lowered position. Thereafter, after the edge bending member 177 is rotated from the bending position to the non-folding position, the end wall bending member 168 is moved from the bending position to the receiving position. Then, the assembled packaging box 10A is transported by the conveyor to the storage device of the next process.

  As described above, the molding portion 160 of the present embodiment bends the edge wall 19 with respect to the end wall 13 to fold the reinforcement column 18 temporarily assembled by the reinforcement column temporary assembly portion 140 with respect to the end wall 13. Since the bending member 177 is provided, even if the repulsive force between the end wall 13 and the reinforcing post 18 is strong, the bending state can be reliably maintained. Further, the end wall 13 can be reliably held in a bent state with respect to the bottom wall 12 by the end wall bending member 168. Then, the side wall 15 is bent by the side wall bending member 181 to arrange the edge wall 19 and the side wall 15 of the reinforcing pillar 18 at a predetermined position, and by fixing them, a packaging box including the reinforcing pillar 18 at the corner. Can make 10A automatically. Therefore, the convenience and the workability at the article manufacturer can be improved.

  In addition, the box making apparatus 100 of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the temporary folding portion 105, although one movable guide member 118 is used together and a fold is attached along the first fold line 20 and the third fold line 24, the fold is formed using different guide members. It may be attached. Further, in the molding section 160, the end wall bending step is performed after the reinforcing column bending step, but the reinforcing column bending step may be performed after the end wall bending step.

  In the above embodiment, the first inclined wall 21 is directly connected to the edge wall 19 via the second fold line 22, and the packaging box 10A in which the reinforcing pillars 18 are protruded inward from the edge wall 19 is manufactured. Although the automatic boxing was performed by the device 100, the boxing device 100 can also automatically box the blank 10B shown in FIG. 18 as the packaging box 10A shown in FIG.

  In the packaging box 10A shown in FIG. 17, the first inclined wall 21 is continuously provided to the edge wall 19 via the folded wall 40. Thereby, the reinforcing column 18 is formed in a triangular cylinder shape which protrudes inward from the end wall 13 by the first inclined wall 21, the second inclined wall 23 and the end wall 13. Referring to FIG. 18, the folded wall 40 is an elongated rectangular shape and is continuously provided to the edge wall 19 via a fold line 41 made of a lead. The first inclined wall 21 is connected to the folded wall 40 on the side of the edge wall 19 via a second fold line 22.

  In this packaging box 10A, the folded wall 40 side is flatly superimposed on the edge wall 19 side before the edge wall 19 is bent with respect to the end wall 13. That is, the end wall 13 and the edge wall 19 are located on the same plane. The folded wall 40, the first inclined wall 21, the second inclined wall 23, and the fixed wall 25 are located on the same plane. In this state, by bending the edge wall 19 with respect to the end wall 13, the first inclined wall 21 located inside is bent with respect to the folded wall 40. In addition, the first inclined wall 21 and the second inclined wall 23 bend along the third bending line 24, and the second inclined wall 23 and the fixing wall 25 bend along the fourth bending line 26. Thus, a triangular cylindrical reinforcing column 18 is formed.

  Similar to the packaging box 10A shown in FIG. 2A, the packaging box 10A is a border between the folded wall 40 and the first inclined wall 21 inside the first fold line 20 which is the border between the end wall 13 and the edge wall 19. Since the second fold line 22 is located, the repulsive force when the edge wall 19 is bent with respect to the end wall 13 becomes strong. Moreover, it is difficult to bend the first inclined wall 21 and the second inclined wall 23 along the third fold line 24 and to project the top portion which is the portion of the third fold line 24 inward.

  The packaging box 10A can be assembled by the box-making apparatus 100 substantially the same as the above embodiment. The temporary folding portion 105 is different in that the height of the movable guide member 118 is increased by the width of the folded wall 40. According to this aspect, the temporary fold portion 105 can be folded along the first fold line 20 and the third fold line 24. In the reinforcing column temporary assembly portion 140, the fixed wall 25 is folded in a state where the folded wall 40 (the first inclined wall 21 side) is bent with respect to the edge wall 19 and the folded wall 40 side is overlapped flatly on the edge wall 19 side. It is different in that it is fixed to the end wall 13 and temporarily assembled. The shaping | molding part 160 differs by the point which the reinforcement pillar 18 protrudes in a triangular cylinder shape by bending the edge wall 19 with respect to the end wall 13 by the edge wall bending member 177. As shown in FIG.

  Thus, the box-making apparatus 10 of the present invention not only assembles the blank 10B shown in FIG. 3 as the packaging box 10A shown in FIG. 2A but also assembles the blank 10B shown in FIG. 18 as the packaging box 10A shown in FIG. You can also. Then, since the temporary fold portion 105 has a fold along the first fold line 20 and the third fold line 24, the foldability can be improved, and the top portion of the reinforcing pillar 18 is reliably formed in the forming portion 160. It can be made to project towards. Further, in the molding portion 160, the edge wall 19 (entirely the reinforcing pillars 18) with respect to the end wall 13 can be held in a bent state by the edge wall bending member 177.

  Further, the present invention is characterized in the molding portion 160 for assembling the blank 10B in which the reinforcement columns 18 are formed in advance by the reinforcement column temporary assembly portions 140, and in particular, the other temporary folding portions 105 and the reinforcement column temporary assembly portions 140. The configuration can be changed as desired. Of course, the molding portion 160 includes an end wall bending member 168 that bends the end wall 13 with respect to the bottom wall 12, an edge wall bending member 177 that bends the reinforcing post 18 with respect to the end wall 13, and the bottom wall 12. If it is a structure provided with the side wall bending member 181 which bend | folds the side wall 15, it can be changed as desired about another structure including these specific structures.

DESCRIPTION OF SYMBOLS 10A ... Packaging box 10B ... Blank 12 ... Bottom wall 13 ... End wall 14 ... Folding curve (1st edge)
15: Side wall 16: Folded curve (second edge)
18 ... Reinforcement column 19 ... Edge wall 20 ... 1st curve 21 ... 1st angled wall 22 ... 2nd curve 23 ... 2nd angled wall 24 ... 3rd curve 25 ... Fixed wall 26 ... 4th curve 28 ... Crosspiece wall 29: Curved curve 30: Lid member 31: Top wall portion 32: Side wall portion 33: Folded curve 35A, 35B: Adhesive 40: Folded wall 41: Folded curve 100: Box making device 102: Paper feed unit 105: Provisional Folded portion 107: Fixed guide member 108: First flat plate portion 109: Second flat plate portion 110: Curved plate portion 111: Insertion hole 112: Stopper 114: Adjustment member 115: Pressing member 116: Drive member 118: Movable guide member 119: first bending portion 120: second bending portion 122: temporary bending member 123: base portion 124: projecting portion 126: rotation shaft 127: bracket 128: driving member 129: rod 130: suction unit 131: suction unit 131 Member 135: First application unit 136: Applicator 140: Reinforcing column temporary assembly 142: Holding unit 143: Guide rail 144: Suction member 146: Inclined wall bending member 147: Air removal hole 148: Contouring portion 149: Connection member 151A, 151B ... Link member 152 ... Drive member 153 ... Pressure contact member 155 ... Second application section 156 ... Application device 160 ... Molding section 162 ... Positioning unit 163 ... Guide rail 164 ... Push frame 165 ... First plate section 166 ... Second Plate portion 168: End wall bending member 169: Rotation frame 171: Link mechanism 172: First link member 173: Second link member 175: Suction member 177: Edge wall bending member 178: Drive member 179: Rod 181: Side wall Folding member 182: first flat plate portion 183: second flat plate portion 184: curved plate portion 186: lifting and lowering Beam 187 ... drive member

Claims (5)

Bottom wall,
An end wall standing at a first edge of the bottom wall;
A side wall erected at a second edge of the bottom wall extending in a direction intersecting the first edge;
An edge wall connected to the side wall side edge of the end wall via a first bending line and fixed to the inner side surface of the side wall;
A first inclined wall continuously provided on the edge wall side via a second bending line extending along the first bending line;
A second sloped wall connected to the first sloped wall via a third fold line extending along the second fold line;
And a fixing wall connected to the second inclined wall via a fourth bending line extending along the third bending line, and fixed to the inner surface of the end wall,
A tubular shape is formed by the first inclined wall, the second inclined wall, and at least one of the edge wall and the end wall, and the first against the one of the edge wall and the end wall sloped wall and the second sloped wall inclined, a portion of the third folding line a box manufacturing apparatus of the packaging box forming the reinforcement column that protrudes inwardly as the top,
A temporary fold that folds the end wall and the edge wall along the first fold line and applies a fold along the first fold line;
A reinforcement column temporary assembly portion for temporarily assembling the reinforcing column by bending the first inclined wall side with respect to the edge wall and fixing the end wall and the fixing wall overlapped by the bending,
An end wall bending member for bending the end wall with respect to the bottom wall, an edge wall bending member for bending the edge wall with respect to the end wall, and a side wall bending member for bending the side wall with respect to the bottom wall A box making apparatus, comprising: a molding portion for fixing the overlapped side wall and the edge wall. At the molding unit,
By bending the edge wall with respect to the end wall along the first bending line by the edge wall bending member, the second inclined wall can be formed with respect to the fixing wall along the fourth bending line. A first step of bending and bending the entire reinforcing column relative to the end wall;
A second step of bending the end wall with respect to the bottom wall by the end wall bending member while maintaining the bent state of the reinforcing post by the edge wall bending member;
The box-making apparatus according to claim 1, wherein a third step of bending the side wall with respect to the bottom wall and securing the side wall to the edge wall is sequentially performed by the side wall bending member. The end wall bending member is rotatably disposed at a lower portion of the end wall,
The box-making apparatus according to claim 1 or 2, wherein the edge wall bending member is rotatably disposed on the end wall bending member so as to be located at a lower portion of the edge wall.   4. The side wall bending member according to claim 1, wherein the side wall bending member is disposed so as to be movable upward at a lower portion of the side wall, and pressing the side wall against the edge wall fixes the side wall. Box-making apparatus as described in. Wherein in the temporary folding unit, folded along the said first inclined wall and the second sloped wall to the third folding lines, and further with the third Orikuse along the folding lines, wherein from claim 1 The box-making apparatus of any one of claim 4 .

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