JP2013132815A - Case making method and case making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case making method and a case making apparatus capable of coping with a change in the size of a folded sheet.SOLUTION: The folded sheet has a plurality of panels 9 which form a square cylinder with both edges opened when opening the sheet; outer flaps continued to both edges of each of a pair of panels 9 which are opposed when opening the sheet among the plurality of panels 9; and inner flaps 10c, 10d continued to both edges of each of another pair of panels 9 which are opposed when opening the sheet, separately from the pair of panels 9. The pair of panels 9 opposed when opening, or the outer flaps or the inner flaps 10c, 10d are sucked by suction means 22 from both sides of a conveyance path 12 with the folding sheet held in the conveyance path 12, and the suction means 22 sucking the outer flaps or the like are moved in a direction of mutually approaching the suction means 22 in a conveyance direction of the conveyance path 12 while moving the respective suction means 22 in a width direction intersecting the conveyance direction according to the size of the folded sheet in such a manner that they are separated from each other, whereby the folded sheet is opened.

Description

  The present invention relates to a box making method and a box making apparatus for opening a folded sheet made of cardboard or the like.

  2. Description of the Related Art Conventionally, a box making apparatus is known in which folding sheets made of corrugated cardboard or the like that are pasted and folded flat are taken out from a magazine one by one, opened to form a box, and a box flap is folded. For example, in Patent Document 1 below, in order to pack a packaged product into a box that has been boxed from above and below, a folding sheet panel in an upright state is folded by suction means so that the opening of the box faces in the vertical direction. There is shown a box making apparatus that opens from both the left and right sides of the sheet.

JP 2004-224383 A

  However, in the box making apparatus disclosed in Patent Document 1, when the size of the box is changed, the position of the respective suction means is changed, the parts are replaced, etc., and the suction means is folded. Must correspond to the size of.

  An object of the present invention is to provide a box making method and a box making apparatus that can cope with a change in the size of a folding sheet.

  In the box making method according to the first aspect of the present invention, a plurality of panels (9) which are square tubes whose both ends are opened when the box is opened, and a pair of panels (9) which are opposed to each other when the box is opened. The outer flaps (10a, 10b) connected to the both end edges of each of (9) and the both end edges of another pair of panels (9) facing each other at the time of opening apart from the pair of panels (9) The folding sheet (2A) having the inner flaps (10c, 10d) continuously provided on the conveying path (12) is held by the conveying path (12), and the pair of the sheets is sucked by the suction means (22) from both sides of the conveying path (12). Each of the panel (9) or each of the outer flaps (10a, 10b) or the inner flap (10c, 10d) extending from one edge side is adsorbed, and the panel (9) or the outer flap (10a, 10b) is adsorbed. ) Or inner flap (10 , 10d) while moving the respective adsorbing means (22) adsorbed to each other in the width direction intersecting the conveying direction of the conveying path (12) according to the size of the folding sheet (2A), Each of the suction means (22) is moved in a direction in which both suction means (22) approach each other in the transport direction to open the folding sheet (2A).

  According to the first aspect of the present invention, the respective outer flaps (10a, 10b) or inner flaps (10c, 10), which are opposed to each other at the time of opening the suction means (22) which can be moved and adjusted in the transport direction and width direction of the transport path (12). 10d) or the panel (9) from both sides of the conveyance path (12), and the outer flaps (10a, 10b), the inner flaps (10c, 10d) or the panel (9) are adsorbed to each other. By moving the means (22) so as to be separated in the width direction of the conveyance path (12) in accordance with the size of the folding sheet (2A), the respective adsorption means (22) are moved closer to each other in the conveyance direction, thereby various types of folding. The sheet (2A) can be opened.

  In the box making method according to the second invention based on the first invention, after the folding sheet (2A) is opened, each sucking means (22) sucked in the conveying direction is moved in the conveying direction. It is moved in the same direction, and the folded sheet (2A) is moved and delivered without being deflected in the opened state.

  In the invention of claim 2, each suction means (22) for opening the folded sheet (2A) is moved in the transport direction without deflecting the opened folded sheet (2A) while being sucked. Since it is delivered, a guide structure such as a side guide that prevents deflection of the folded sheet (2A) when the folded sheet (2A) is conveyed can be omitted.

  In the box making method according to the invention of claim 3 premised on the invention of claim 1 or claim 2, after opening the folding sheet (2A), the folding part (26) extends to the one end edge side. Each of the inner flaps (10c, 10d) is folded in such a direction that the tips of the inner flaps (10c, 10d) approach each other, and the article to be packaged (7) through the folded inner flaps (10c, 10d). The suction means (22) that is sucked move the box (2B) opened in the transport direction in a state where the box is supported.

  In the invention of claim 3, the folded portion (26) smoothly folds the inner flap (10c, 10d) and supports the package (7) through the folded inner flap (10c, 10d). Since each adsorption | suction means (22) moves a box (2B) to a conveyance direction, the process up to sealing can be performed rapidly.

  In the box making method according to the invention of claim 4 premised on any one of the inventions of claims 1 to 3, the outer flaps (10a) in which the respective suction means (22) extend from the one end edge side. , 10b) and the outer flaps (10a, 10b) are separated from each other in the width direction from the pair of panels (9) connected to the outer flaps (10a, 10b). Each of the suction means (22) is moved in the width direction to open the folding sheet (2A) and open the outer flaps (10a, 10b), and face each other between the outer flaps (10a, 10b). The inner flaps (10c, 10d) are tilted by the folding portions (30, 31) so that the tips of the inner flaps (10c, 10d) approach each other.

  In the invention of claim 4, after opening each outer flap (10a, 10b) in the width direction, the inner flaps (10c, 10d) facing each other between the outer flaps (10a, 10b) are folded portions ( 30, 31) and the tips of the inner flaps (10c, 10d) are tilted toward each other. Therefore, when the inner flaps (10c, 10d) are tilted, the outer flaps (10a, 10b) and the inner flaps (10c, 10d) The inner flaps (10c, 10d) can be smoothly folded in such a manner that contact with the inner flap can be avoided.

  In the box making apparatus according to the invention of claim 5, a plurality of panels (9) which are square tubes whose both ends are opened when the box is opened, and a pair of panels which are opposed to each other when the box is opened. The outer flaps (10a, 10b) connected to the both end edges of each of (9) and the both end edges of another pair of panels (9) facing each other at the time of opening apart from the pair of panels (9) Holding means (11a) for holding the folding sheet (2A) having the inner flaps (10c, 10d) continuously provided on the conveying path (12), and the folding sheet held by the conveying path (12) Each of the pair of panels (9) in (2A), each of the outer flaps (10a, 10b) extending from one end edge side, or each of the inner flaps (10c, 10d) can be adsorbed and moved by each motor. Said transport path ( 2) The suction means (22) disposed on both sides of the transport path (12), and the suction path (12) on both sides of the transport path (12). Guide means (13) for moving and guiding in the width direction intersecting the transport direction and the guide means (13), the guide means (13) depending on the size of the folding sheet (2A). And each of the outer flaps (10a, 10b) or the inner flaps (10c, 10d) extending from one end edge side are guided so that the suction means (22) can suck them, and each suction means ( 22) is configured to be able to move the respective suction means (22) in a direction in which the suction means (22) approach each other in the transport direction while separating the suction means (22) in the width direction.

  In the invention of claim 5, since the position of each suction means (22) can be changed in the conveying direction or the width direction by the guide means (13), the folding sheet (2A) is opened by each suction means (22). be able to. Further, the position of each suction means (22) is changed in accordance with the position of the respective outer flap (10a, 10b), inner flap (10c, 10d) or panel (9) facing each other when opening, and the folding sheet is changed. It is possible to correspond to the change in size of (2A).

  In the box making apparatus according to the invention of claim 6 premised on the invention of claim 5, each guide means (13) includes a support body (19) for supporting the suction means (22), and the support body ( 19) is arranged to be movable in the width direction together with the support body (19) in the first guide body (18b, 20) for guiding the width direction in the width direction, and the first guide body (18b, 20). The first roller (24), the second guide body (17, 18a) for guiding the support body (19) in the transport direction, and the support body (19) by the second guide body (17, 18a). A plurality of second rollers (23a, 23b) arranged to be movable in the carrying direction and a plurality of rollers arranged to be rotatable in the front-rear direction in the carrying direction with respect to the second guide body (17, 18a). Rotating body (14, 15) and said support (19) or said adsorption means (22) Is connected to the first roller (24), the plurality of second rollers (23a, 23b), and the respective rotating bodies (14, 15) and wound around the rotating body (14, 15) in a substantially cross shape. Through which the motor (25) driven by the motor is provided, and the rotary body (14, 15) to the support body (19) by the rotation of the rotor (14, 15) by the motor ( The suction means (22) can be moved in the transport direction and the width direction by changing the length of 25).

  In invention of Claim 6, a support body (19) is moved via the rope body (25) which changes the length of the rope body (25) from each rotary body (14,15) to a support body (19). The guide means (13) capable of reducing the energy consumption of the motor and easily changing the position of the suction means (22) in the transport direction and the width direction.

  The present invention can provide a box making method and a box making apparatus that can cope with a change in the size of a folding sheet.

The schematic plan view which shows the whole box making apparatus. The schematic partial top view of the box making part which shows the state which has an adsorption | suction means in an initial position. (A) is a schematic top view of the box making part which shows the state which made the adsorption | suction means contact the outer flap, (b) is a schematic front view of the box making part which shows the state of the flap folding part in the timing of (a). (A) is a schematic plan view of the box making unit showing a state where the suction means has opened the folded sheet, and (b) is a state in which the rear end of the folded sheet is moved to the reference position after opening and the inner flap is inclined. The schematic front view of the box making part shown. (A) is a schematic plan view of the box making part showing a state in which the rear end of the folding sheet is moved to the reference position after opening, and (b) is an outline of the box making part showing a state in which the inner flap is folded by the folding body. Front view. (A)-(f) is a perspective view or side view which shows the box making process of a folding sheet | seat.

  In the box making apparatus shown in FIG. 1, the folding sheet 2 </ b> A (see FIG. 6A) accommodated in the magazine 1 is supplied to the box making unit 5 by the hand 4 of the robot 3. 2A is opened and a box 2B is formed as shown in FIGS. 6B, 6C, 6D, and 6E, and the object 7 to be packaged carried on the conveyor 6 is moved by the hand 4 of the robot 3. After being supplied to the box 2B, the box 2B supplied with the package 7 in the box making unit 5 is sealed in the sealing unit 35 as shown in FIG. Carry out to 8.

  The folding sheet 2A shown in FIG. 6 (a) is a sheet made of corrugated cardboard that is pasted and folded flat, and in the state where the folding sheet 2A is opened, there are four panels as shown in FIG. 6 (b). 9 (a left wall portion 9a and a right wall portion 9b that face each other, a front wall portion 9c and a rear wall portion 9d that face each other) form a square tube, and two outer flaps 10a, 10 b and the two inner flaps 10 c and 10 d are adjacent to each other in the circumferential direction of the panel 9 in a standing state so as to be positioned above and below the panel 9.

  The robot 3 is an articulated robot having a three-dimensional degree of freedom, and the hand 4 that can freely move within a predetermined movement range has a plurality of suction portions 11a (holding means) and the directions of the suction portions 11a. A plurality of suction portions 11b are arranged so as to be different from each other by 90 degrees. The suction part 11a and the suction part 11b are each configured to be able to adjust the spacing between the suction parts 11a and 11b according to the size of the folding sheet 2A and the size of the article 7 to be packaged. Within the predetermined operating range, the take-out part 1a of the magazine 1, the take-out part 6a of the conveyor 6 and the box making part 5 are arranged.

  As shown in FIGS. 1 and 2, the box-making unit 5 includes a conveyance path 12 extending toward the sealing unit 35, and guide portions 13 (guide means) disposed on both sides of the conveyance path 12. As shown in FIGS. 3 to 5, a flap folding portion 36 disposed immediately below the conveyance path 12 is provided.

Each guide portion 13 includes a guide rail 17 (second guide body), a slider 18, a support body 19, a belt 25 (cord body), pulleys 14 and 15, and the like.
Each guide rail 17 extends along the transport path 12 (in the box transport direction in the box making unit 5) and is supported by a main body frame (not shown), and pulleys 14 and 15 are provided near both ends of each guide rail 17. It is arranged. Each pulley 15 is supported by a main body frame (not shown) so that the pulley 15 can rotate horizontally via a servomotor 16 and the pulley 14 can rotate horizontally via a servomotor (not shown).

  Each slider 18 includes a slider body 18c, a first guide portion 18a (second guide body), a second guide portion 18b (first guide body), and four rollers 23a, 23b (second guide) provided on the slider body 18c. Roller), a slide shaft 20 (first guide body) supported by the second guide portion 18b so as to be slidable in the width direction intersecting the transport direction, and a roller 24 (on the one end side of the slide shaft 20). The first guide portion 18a is slidably engaged with the guide rail 17, so that it can move on the guide rail 17. A main body 21 of a support 19 is provided on the other end side of the slide shaft 20.

  In the main body 21, both end portions 25a and 25b of one belt 25 are fixed in the vicinity of the center, and an opening adsorbing portion 22a is disposed on both sides thereof. Each opening suction part 22a is configured as a suction means 22 so that an air pipe (not shown) is connected to suck the outer flaps 10a and 10b of the folded sheet 2A.

  One belt 25 meshes with the same pulleys 14 and 15 on the same horizontal plane and is wound around the four rollers 23a and 23b and the roller 24 in a substantially cross shape to be in a stretched state. For this reason, when the rotation direction and the rotation amount of each of the servo motors that rotationally drive the pulleys 14 and 15 are driven and controlled by a control means (not shown), the length from both the pulleys 14 and 15 to the end portions 25a and 25b of the belt 25. And the support 19 having the suction means 22 is moved as follows.

  First, when both pulleys 14 and 15 rotate in the forward direction RF, the support 19 moves to the pulley 15 side rearward in the transport direction, and when both pulleys 14 and 15 rotate in the reverse direction RB, the support 19 is It moves to the pulley 14 side forward in the transport direction. In these cases, if the rotation amounts of both pulleys 14 and 15 are the same, the support 19 moves only in the transport direction without moving in the width direction, and if there is a difference in the rotation amounts of the pulleys 14 and 15, The support 19 is not only in the conveying direction, but also the tension of the belt 25 inside the pulleys 14 and 15 where the roller 23a is placed and the tension of the belt 25 outside the pulleys 14 and 15 where the roller 23b is placed. Move to the smaller side. That is, the support 19 moves obliquely on the horizontal plane.

  Next, when the amount of rotation of the pulleys 14 and 15 is the same, the pulley 14 rotates in the forward rotation direction RF, and the pulley 15 rotates in the reverse rotation direction RB, the support 19 does not move in the transport direction, but in the width direction. When the pulley 14 moves to the inside (the roller 23a side), the pulleys 14 and 15 have the same rotation amount, the pulley 14 rotates in the reverse direction RB, and the pulley 15 rotates in the normal direction RF, the support 19 moves in the transport direction. However, if there is a difference in the amount of rotation of the pulleys 14 and 15, the support body 19 is not only in the width direction but also the end portions of the pulley 14 and the belt 25. It moves to the side where the tension is small in the transport direction so that the tension between 25a and the tension between pulley 15 and end 25b of belt 25 are balanced. That is, the support 19 moves obliquely on the horizontal plane.

  The flap folding portion 36 disposed immediately below the conveyance path 12 includes a folding body 26 (folding portion) that can move only in the vertical direction, a front folding member 30 that can move in the conveyance direction, and a rear folding member 31 (folding portion). ).

  As shown in FIGS. 2 to 5, the folding body 26 includes a mounting portion 26 a that is spaced apart from the conveyance center in the conveyance path 12 where the folding sheet 2 </ b> A is supplied by the same width direction as the support portion 26 b. Thus, the control means (not shown) moves up and down by operating the air cylinder 27 disposed below the support portion 26b.

  3 and 4, the folding body 26 is lower than the lower end edge of the folding sheet 2A supplied to the conveyance path 12 in the standby state in which the folding body 26 is lowered, and the folding body 26 as shown in FIG. In a state in which 26 is raised, the height of the upper surface of the mounting portion 26a comes into contact with the lower end green of the panel 9 of the folding sheet 2A, and is the same height as the upper surface of the transport bed 33 disposed forward in the transport direction. .

The front folding member 30 is supported by the air cylinder 29, and moves up and down when a control means (not shown) operates the air cylinder 29.
Further, since the air cylinder 29 is arranged to move on the guide rail 28a extending in the transport direction when the air cylinder 28 is operated, the front folding member 30 also moves in the front-rear direction. For this reason, the front folding member 30 rises from between the pair of mounting portions 26a, then moves rearward in the transport direction as shown in FIG. 4B, and comes into contact with the inner flaps 10c and 10d.

The rear folding member 31 moves before and after the reference position P in the transport direction as shown in FIG. 4B when a control means (not shown) operates the air cylinder 32.
Next, on the downstream side of the box making unit 5, a transport bed 33 and side belt conveyors 34 are arranged on both sides from the box making unit 5 to the sealing unit 35.

  The side belt conveyor 34 is configured such that the distance between the side belt conveyors 34 can be adjusted according to the size of the box 2B. A gap G is formed on both sides of the transport bed 33 in parallel with the transport direction so that the outer flaps 10a and 10b are transported in a state of protruding downward from the transport bed 33.

  Information is transmitted between the box making unit 5 configured as described above and the robot 3, the conveyor 6 and the like through various control means (not shown), and drive control in which various operation timings are adjusted is performed. Then, the package 7 is packed as follows.

  First, in the hand 4 of the robot 3 shown in FIG. 1, the front wall portion 9c and the left wall portion 9a, which are the panels 9 of the folding sheet 2A shown in FIG. Adsorb, take out one folded sheet 2A and transfer it to a sheet supply position defined on the conveyance center in the conveyance path 12 of the box making unit 5. At the supply position, the folded sheet 2A is a panel as shown in FIG. 9, the outer flaps 10a, 10b and the inner flaps 10c, 10d, which are the bottom side of the box 2B extending from one end side, are arranged in the front-rear direction in the conveying direction, and the rear end of the folding sheet 2A is at the reference position P. Hold upright to match.

  At this time, as shown in FIG. 2, the suction means 22 of the box making unit 5 are separated from the conveyance center in the conveyance path 12 by the same distance on both sides (left and right) in the width direction, and are also separated from the outer flaps 10a and 10b on the bottom side. It stands by at a position (initial position) where both sides are displaced forward and backward in the transport direction so as to face each other.

  The initial positions of the left and right suction means 22 and the movement amounts of the left and right suction means 22 to be described later in the transport direction and the width direction are set in advance to the sizes of the outer flaps 10a and 10b of the folding sheet 2A to be used. As a result, the servo motors are driven and controlled so that the left and right suction means 22 move to an appropriate position according to the folding sheet 2A to be used based on the setting information.

  When the folding sheet 2A is held at the supply position, the left and right suction means 22 waiting at the initial position as shown in FIG. 2 move to the conveyance path 12 side as shown in FIG. The left and right outer flaps 10a, 10b on the bottom side of the folding sheet 2A are adsorbed. At that time, the folding body 26, the front folding member 30, and the rear folding member 31 are in a standby state separated from the bottom side of the folding sheet 2A as shown in FIG. The suction part 11a of the hand 4 of the robot 3 releases the suction to the folded sheet 2A in accordance with the suction by the left and right suction means 22.

  Thereafter, as shown in FIG. 4A, the left and right suction means 22 are transported while being separated from each other by the same distance in the width direction from the transport center of the transport path 12 in a state where the outer flaps 10a and 10b are sucked. In the direction, the sheets are moved horizontally by a distance L in the directions approaching each other, and the folding sheet 2A is opened to form a box 2B having an open bottom and lid as shown in FIG. 6B.

  Next, while maintaining the distance relationship between the width direction and the transport direction in FIG. 4A of both the left and right suction means 22, each suction means 22 is horizontally moved upstream in the transport direction, and the transport direction of the opened box 2B Is stopped at the position where the rear end reaches the reference position P. Then, the left and right suction means 22 are slightly separated from each other in the width direction, and the left and right outer flaps 10a and 10b are slightly opened outward from the vertical state on the bottom side of the box 2B as shown in FIG. 6C. Make it go.

  Next, as shown in FIG. 4B, the front folding member 30 is lifted from the standby state and retracted to enter between the outer flaps 10a and 10b on the bottom side of the box 2B, and the front inner flap 10c is moved to the box. 2B, the rear folding member 31 is advanced from the standby state to enter between the outer flaps 10a and 10b on the bottom side of the box 2B, and the inner flap 10d on the rear side is tilted to the inside of the box 2B.

  In this state, as shown in FIG. 5 (b), the folding body 26 is lifted from the standby state to enter between the outer flaps 10a and 10b and brought into contact with the tip ends of the inclined inner flaps 10c and 10d. Then, the folding body 26 is further raised and the tips of the inner flaps 10c, 10d are tilted to approach each other, and the front and rear inner flaps 10c, 10d are folded horizontally on the bottom side of the box 2B. The front folding member 30 and the rear folding member 31 return to the standby state at the timing when the folding body 26 comes into contact with the inner flaps 10c and 10d, and the left and right suction means 22 are brought closer to each other in the width direction. The tips of the outer flaps 10a, 10b on the bottom side of the box 2B are directed in the vertical direction.

  Next, the adsorbing part 11b of the hand 4 of the robot 3 adsorbs three articles to be packaged 7 carried into the take-out part 6a side of the transport conveyor 6 at the same time, and supplies them from the opening on the lid side of the box 2B. In addition, the supply operation | work of the to-be-packaged item 7 with respect to one box 2B is repeated predetermined times. Each article 7 to be packaged supplied to the box 2B is supported on the placing portion 26a of the folding body 26 via the inner flaps 10c and 10d.

  When the supply work of the package 7 is completed, the suction means 22 is horizontally moved downstream in the transport direction while maintaining the distance relationship between the width direction and the transport direction of both the left and right suction means 22, and the box 2B is folded. 26 to the transfer bed 33 and further moved horizontally. Note that the rear end 33 a of the transfer bed 33 is inclined so that the box 2 </ b> B passes over the transfer bed 33 smoothly. Thereafter, the left wall portion 9a and the right wall portion 9b of the panel 9 of the box 2B are brought into contact with the left and right side belt conveyors 34, and the box 2B is sandwiched by the side belt conveyors 34 and conveyed downstream (forward) in the conveying direction. To do. At that time, the outer flaps 10a and 10b on the bottom side protrude downward from the transfer bed 33 through the gap G in FIG. Further, when the left and right suction means 22 pass the box 2B to the side belt conveyor 34, the movement toward the pulley 14 is interrupted and the suction to the left and right outer flaps 10a and 10b is released, and the initial position shown in FIG. Return to.

  Then, as shown in FIG. 6 (e), the inner flaps 10c and 10d on the lid side of the box 2B are folded inward at the sealing portion 35 while the box 2B is conveyed by the side belt conveyor 34, and then the lid side The outer flaps 10a and 10b are folded inward and overlapped with the inner flaps 10c and 10d, and a tape is applied as shown in FIG. 6 (f), and the outer flaps 10a and 10b on the bottom side of the box 2B are folded inward and the inner flaps are folded. 10p and 10d are overlapped and taped in the same manner and sealed. The sealed box 2B is transported by the discharge conveyor 8 and transferred by being held by the hand 4 of the robot 3.

This embodiment has the following effects.
(1) The respective suction means 22 that can be moved and adjusted in the transport direction and the width direction of the transport path 12 are brought into contact with the respective outer flaps 10a and 10b, and the respective suction means 22 are attracted to each other with the respective outer flaps 10a and 10b being sucked. The folding sheets 2A can be opened by making them approach in the conveying direction while being separated in the width direction of the conveying path 12 according to the size of the folding sheet 2A.

  (2) Since the folded folding sheet 2A is moved in the transported direction by the left and right unfolding suction portions 22a for unfolding the folding sheet 2A, the unfolded folded sheet 2A is transported. When doing so, it is possible to omit a guide structure such as a side guide for preventing the folding sheet 2A from being deflected.

  (3) The folding body 26 smoothly folds the inner flaps 10c and 10d, and each suction means 22 holds the box 2B in the conveying direction while supporting the article 7 to be packaged via the folded inner flaps 10c and 10d. Since it is moved, processing up to sealing can be performed quickly.

  (4) After opening the outer flaps 10a and 10b in the width direction, the inner flaps 10c and 10d facing each other between the outer flaps 10a and 10b are moved by the front folding member 30 and the rear folding member 31. Since the tips of the inner flaps 10c and 10d are tilted toward each other, when the inner flaps 10c and 10d are tilted, contact between the outer flaps 10a and 10b and the inner flaps 10c and 10d can be avoided. The inner flaps 10c and 10d can be smoothly folded.

  (5) Since the position of each suction means 22 can be changed in the conveying direction and the width direction by the guide portion 13, not only can the folding sheet 2A be opened by each suction means 22, but also the position of each suction means 22 Can be changed in accordance with the positions of the outer flaps 10a and 10b to cope with a change in the size of the folding sheet 2A.

  (6) As the guide portion 13, the support body 19 is changed via the belt 25 by changing the length of the belt 25 from each pulley 14, 15 to the support body 19 without moving the servo motors and the pulleys 14, 15. Since a mechanism that can move the motor is employed, the energy consumption of the motor and the like can be reduced, and the positions of the left and right suction means 22 can be easily changed in the transport direction and the width direction.

The present invention can be modified as appropriate in addition to the above-described embodiment without departing from the spirit of the present invention. For example, the following configuration can be employed.
The holding means may be configured to hold the folding sheet 2A with a roller or the like until the left and right suction means 22 suck the left and right outer flaps 10a and 10b on the bottom side of the folding sheet 2A. Good.

-After sealing one opening of the box 2B with a tape etc., you may make it supply each to-be-packaged object 7 from the other opening of the box 2B.
The folding sheet 2A may be opened by moving one of the left and right suction means 22 larger than the other suction means 22 in the transport direction or in the width direction.

  If the folding sheet 2A is a surface that faces when the folding sheet 2A is opened, the left and right suction means 22 suck the pair of opposing panels 9 or the pair of opposing inner flaps 10c and 10d, and thereby fold the folding sheet 2A. The folding sheet 2A may be opened by, for example, adsorbing the panel 9 and the outer flaps 10a and 10b connected to the panel 9 together by the left and right adsorbing means 22, respectively. You may leave it.

The folding body 26 that supports the package 7 via the inner flaps 10c and 10d may be configured to be separable, for example, before and after the transport direction.
The reference position P may be set at an arbitrary position, for example, by setting the reference position P forward in the conveyance direction and driving and controlling the front end of the folding sheet 2A to match the reference position P.

The reference position P may be changed when the size of the folding sheet 2A is changed.
The folding sheets 2A having different sizes may be accommodated in the plurality of magazines 1, and one of the folding sheets 2A may be taken out by switching the magazine 1.

  2A ... Folding sheet, 2B ... Box, 7 ... Package, 9 ... Panel, 10a, 10b ... Outer flap, 10c, 10d ... Inner flap, 11a ... Suction part, 12 ... Conveyance path, 13 ... Guide part (Guiding means) , 14, 15 ... pulley (rotary body), 16 ... servo motor, 17 ... guide rail (second guide body), 18 ... slider, 18a ... first guide part (second guide body), 18b ... second guide Part (first guide), 19 ... support, 20 ... slide shaft (first guide), 22 ... suction means, 23a, 23b ... second roller, 24 ... first roller, 25 ... belt (cord) , 26 ... folded body (folded part), 30 ... front side folded member (folded part), 31 ... rear side folded member (folded part).

Claims (6)

  A plurality of panels that are square tubes having both edges open at the time of opening, an outer flap that is connected to both ends of each of the pair of panels facing each other at the time of opening, and the pair of panels; Separately, the pair of folding panels having inner flaps connected to both end edges of another pair of panels facing each other at the time of opening the box are held by the conveyance path, and the pair of the sheets are attracted by suction means from both sides of the conveyance path. Each of the panels or one of the outer flaps extending from the edge side of each panel or each of the inner flaps is sucked, and each suction means sucked on the panel or the outer flap or the inner flap is selected according to the size of the folding sheet. Folding by moving the respective suction means in a direction in which the two suction means approach each other in the transport direction while moving them apart in the width direction crossing the transport direction of the transport path Seihako method characterized by Hirakihako the over bets.   After opening the folding sheet, each suction means that is sucked is moved in the same direction in the conveying direction, and the folding sheet is moved without being deflected in the opened state and delivered. The box making method according to claim 1.   After opening the folding sheet, the inner flaps with the folding portions extending toward the one end edge are folded in the direction in which the tips of the inner flaps approach each other, and the articles to be packaged are passed through the folded inner flaps. 3. The box making method according to claim 1, wherein each of the adsorbing means adsorbing each of the adsorbing units moves the box opened in the conveying direction while supporting the box.   The respective adsorbing means adsorbs each of the outer flaps extending from the one end edge side, and the outer flaps are spaced apart in the width direction from the pair of panels connected to the outer flaps. Each of the suction means is moved in the width direction to open the folding sheet and open the outer flap, and the inner flaps facing each other between the outer flaps are folded so that the front ends of the respective inner flaps are formed by the folding portions. The box making method according to any one of claims 1 to 3, wherein the box making method is inclined in a direction approaching each other. A plurality of panels that are square tubes having both edges open at the time of opening, an outer flap that is connected to both ends of each of the pair of panels facing each other at the time of opening, and the pair of panels; Separately, a holding means for holding a folding sheet having inner flaps connected to both end edges of another pair of panels facing each other at the time of opening in the conveyance path,
Both sides of the pair of panels in the folded sheet held in the transport path, or both sides of the transport path so as to attract each of the outer flaps or the inner flaps extending from one end edge side and move by each motor. Adsorbing means respectively disposed in
A guide unit disposed on both sides of the transport path and configured to move and guide each suction unit in a width direction intersecting the transport direction of the transport path and the transport direction by driving from the motor;
The guide means guides the suction means so that the suction means can suck each of the pair of panels or the outer flaps or the inner flaps extended from one edge side according to the size of the folding sheet, and A box making apparatus configured to move each suction means in a direction in which the suction means approach each other in the transport direction while separating the suction means in the width direction.   Each of the guide means is capable of moving in the width direction together with the support body in the first guide body, a support body for supporting the suction means, a first guide body for guiding the support body in the width direction, and the first guide body. A first roller disposed; a second guide for guiding the support in the transport direction; and a plurality of second rollers disposed in the second guide so as to be movable in the transport direction together with the support. Two rollers, a plurality of rotating bodies arranged so as to be rotatable in the front-rear direction with respect to the second guide body, and a first roller and a plurality of second rollers connected to the support body or the suction means And a cord that is wound around each of the rotating bodies in a substantially cross shape and is driven by the motor via the rotating body, and the rope from the rotating body to the support body by the rotation of the rotating body by the motor. Change the length of the body to move the suction means in the direction of conveyance and width Box manufacturing apparatus according to claim 5, characterized in that it has adapted to move into.