JP5981242B2 - Case assembly device - Google Patents

Description

  The present invention relates to an assembly device for an octagonal cylindrical case having a chamfered portion at four corners on the outer periphery.

  As a plastic bottle filled with beverages such as tea and juice, a chamfered portion is formed at the four corners of the outer periphery of the trunk, and a top wall having a cylindrical mouth portion at the center is inclined with a downward slope toward the outer periphery, What has been known is conventionally known.

  The above PET bottles are packaged and transported in a case made of corrugated cardboard with a plurality of PET bottles as one unit. Here, the PET bottle per unit is heavy, and since the cases are transported in a state where they are stacked in a plurality of stages, the compression of an octagonal cross section in which chamfered portions are formed at the four corners of the quadrangular body. A strong case may be used for packaging.

  In addition, the case with an octagonal cross section has high compressive strength and does not deform, so it is flexible like a standing pouch (self-supporting plastic bag) filled with liquid such as liquid detergent, shampoo, and body soap. It is also widely used for packaging products having

FIG. 14 shows a blank as a material for forming a case having an octagonal cross section. The blank S is four first cylinder panel P ₁ to fourth cylinder panel P ₄ and narrow five first chamfer forming a chamfer on the four corners of the body portion to form a square cylindrical body portion Panels CP _{1 to} 5 chamfered panels CP ₅ are successively provided on both sides in the width direction of each of the trunk panels via vertical crease lines 1, and the first trunk panel P ₁ and the third trunk panel P ₃ are connected to each other. At both ends of each length direction (direction perpendicular to the width direction), bottom and lid forming inner flaps F ₁ and F ₂ are connected via a horizontal fold line 2. Further, bottom and lid forming outer flaps F ₃ and F ₄ are connected to both ends of the second trunk panel P ₂ and the fourth trunk panel P ₄ via lateral crease lines 2.

Blank S as described above, as shown in FIG. 15, first cylinder panel P ₁ overlaps the second waist panel P _2, the fourth cylinder panel P ₄ is a folded overlap the third cylinder panel P ₃ once is a flat folded case K ₁ as shown in FIG. 15, open the case, and is formed into a tubular body portion by bonding of the first chamfered panel CP ₁ and the fifth chamfered panel CP ₅ overlapping each other Often assembled into an octagonal case.

  Patent Document 1 proposes a case assembling apparatus that assembles a cylindrical case having an octagonal body from a flat folded case once formed by another apparatus as shown in FIG.

Japanese Patent Laid-Open No. 10-16087

  By the way, in the case assembling apparatus described in Patent Document 1, an operation for expanding a flat folding case as shown in FIG. 15 manually and mounting the case on the case assembling apparatus for positioning, a pressing plate for the case assembling apparatus Thus, since the operation of expanding the case from the inside to form the barrel part into a cylinder and the operation of closing the bottom of the case are manually performed, it takes time, and the productivity is low, and there is a problem in safety.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a case assembling apparatus that can be easily and efficiently assembled from a flat folding case into an octagonal cylindrical case having an octagonal body.

In order to solve the above-mentioned problems, in the first invention, there are two pairs of opposing side walls, each pair of opposing pair of side walls is formed by one wife surface forming body panel, and the rest A quadrangular cylindrical case in which a pair of opposing side walls is formed by one side forming body panel and a pair of chamfered panels provided on both sides thereof is connected to the end of each body panel. A case assembly apparatus for assembling a bottomed octagonal cylindrical case from a state in which each of the bottom flaps is bent inward, and a case conveying apparatus for conveying the rectangular cylindrical case toward an assembly station; A guide plate for guiding the movement of the bottom flap when the rectangular cylindrical case is conveyed by the case conveying device, and a slide provided movably with respect to the rectangular cylindrical case which is conveyed to the assembly station and stopped. Material, a case forming device supported at the tip of the slide member, and a first forward stop at a stop position where the case forming device is inserted into the quadrangular cylindrical case and faces the side forming body panel A reciprocating device that moves the slide member forward in two stages to a second forward stop position that is a predetermined distance away from the first forward stop position, and the case forming device has a pressing plate, A pair of panel pressing devices that press each of the side surface forming drum panels outward by the pressing plate, and the chamfered panel is inclined by pressing the side surface forming drum panel by the panel pressing device, the inclination angle Position control device for holding each of the end face forming torso panels that move inwardly with the increase in the size at a position where the quadrangular cylindrical case is formed into an octagonal cylindrical case After the octagonal cylindrical case is molded, in a stopped state where the case molding apparatus is moved forward to the second forward stop position, the bottom flap is pressed outward, and the bottom flap overlaps in advance. Ri Na has a flap pressing apparatus for adhering the overlapping portions of the bottom flaps applied adhesive, the panel position regulating device has a regulating plate, the regulating plate is waiting position and Tsumamen forming cylinder panel Is adopted so as to be movable between a predetermined position that holds it at a position where it is molded into an octagonal cylindrical case .

  In the case assembling apparatus configured as described above, when the quadrangular cylindrical case is conveyed to the assembling station by the case conveying apparatus and stopped, the slide member advances by the operation of the reciprocating device. When the case forming device supported by the tip of the slide member enters the case and moves to the first forward stop position, the reciprocating device stops. After the stop, the pair of panel pressing devices are operated, and the pressing plate moves a certain amount in the outward direction. In addition, the pair of panel position regulating devices also operate.

  Due to the movement of the pair of panel pressing devices in the outward direction of the pressing plate, each of the pair of opposed side surface forming body panels is pressed by the pressing plate and translated in the outward direction. In addition, the chamfering panel continuously provided on both sides of the side surface forming body panel starts to be inclined due to the outward movement of the side surface forming body panel, and as the inclination angle increases, the remaining one pair of facing surface forming body panels is formed. Move inward.

  When each of the pair of opposed side surface forming torso panels is moved outward by a predetermined amount and stopped, the remaining one pair of facing surface forming torso panels is also stopped by the panel position regulating device. The case is formed into an octagonal cylindrical case.

  After forming the octagonal cylindrical case, the reciprocating device is operated to advance the case forming device to the second forward stop position. By the advance, the octagonal cylindrical case advances toward the guide plate while being held inside by the pair of panel pressing devices and the pair of panel position regulating devices. The bottom flap comes into contact with the guide plate by the advance of the octagonal cylindrical case, and when the bottom flap is closed by the contact, the flap pressing device is activated to sandwich the bottom flap with the guide plate. . At this time, since the adhesive is preliminarily applied to the overlap of the bottom flap, the overlap portion of the bottom flap is adhered to form an octagonal cylindrical case with a bottom.

In order to solve the above problems, in the second aspect of the invention, there are two pairs of opposed side walls, and each pair of opposed pair of side walls is formed by one wife surface forming body panel. The remaining one pair of opposing pair of side walls is connected to the end portion of each of the cylinder panels by a side panel forming cylinder panel and a pair of chamfered panels provided on both sides thereof. In a case assembling apparatus for assembling a bottomed octagonal cylindrical case from a state in which each of the provided bottom flaps is bent inward, case conveyance for conveying the rectangular cylindrical case toward an assembly station Apparatus, a guide plate for guiding the movement of the bottom flap when the rectangular cylindrical case is conveyed by the case conveying device, and a slidably provided with respect to the rectangular cylindrical case which is conveyed to the assembly station and stopped. A ride member, a case molding device supported by the tip of the slide member, and the slide member is moved forward to a position where the case molding device is inserted into the quadrangular cylindrical case and faces the side surface forming body panel. A pair of panel pressing devices, each of which has a pressing plate and presses each of the side surface forming body panels outwardly by the pressing plate, and the panel pressing device. The chamfered panel is inclined by the pressing of the side surface forming body panel, and each of the wife surface forming body panels moves inwardly with an increase in the inclination angle. it and a panel position regulating device for holding in the position to be molded into the case, the panel position regulating device has a regulating plate, the regulating plate is Dopa for standby position and Tsumamen formed Is movable between a defined position to hold the position to be molded Le to octagonal cylindrical case, pre-applied to the overlap of bottom flaps by pressing the bottom flap after molding of the octagonal cylindrical case adhesive than is the overlapping portion of the bottom flap adopts the constitution comprising a flap pressing apparatus for adhering at.

  In the second aspect of the invention, as in the first aspect of the invention, the case forming device is positioned in the rectangular cylindrical case that stops at the assembly station, and is directed outward of the pressing plates of the pair of panel pressing devices. With this movement, each of the pair of opposing side surface forming body panels is pressed to form the quadrangular cylindrical case into an octagonal cylindrical case.

  After forming the octagonal tubular case, the bottom flap is pressed by the operation of the flap pressing device, and the overlapping portion of the bottom flap is bonded with the adhesive previously applied to the overlapping of the bottom flap, so that the bottomed 8 A rectangular tube case is used.

  In the present invention, as described above, an octagonal cylindrical case having a barrel portion of which is octagonal and whose bottom opening is closed by a bottom flap can be easily and efficiently assembled, and is mechanically free from manpower. Therefore, it can be assembled safely.

The front view which shows embodiment of the case assembly apparatus based on this invention Plan view of FIG. Right side view of FIG. FIG. 2 is a cross-sectional view of the case forming apparatus shown in FIG. Longitudinal sectional view along line VV in FIG. (A) is sectional drawing which followed the VI-VI line of FIG. 4, (b) is sectional drawing which shows the operating state of the panel pressing apparatus shown to (a). (C) is sectional drawing along the VII-VII line of FIG. 4, (d) is sectional drawing which shows the operating state of the panel pressing apparatus and panel position control apparatus which are shown to (c). Cross-sectional view of flap pressing device activated Sectional view showing a corner molding machine Sectional drawing which shows other embodiment of the case assembly apparatus based on this invention Sectional drawing which shows the operation state of FIG. The perspective view which shows the quadrangular cylindrical case by which the trunk | drum was made into the quadrangle | tetragon. The perspective view of the octagonal cylindrical case which shape | molded the rectangular cylindrical case shown in FIG. 12, and the trunk | drum was made into the octagon. Development view showing blank as material for forming octagonal cylindrical case The perspective view which shows the flat folding case formed of the blank shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 12 is to Hirakibako a flat folded case K ₁ shown in FIG. 15 shows a state in which the body portion to form a square tubular casing K _2, which is a square tube shape. The square tubular case K ₂ has two pairs of opposed pair of side walls, a pair of respective side walls of the opposed pair, each one cylinder of the first cylinder panel P ₁ and the third cylinder panel P ₃ One side wall is formed of a panel, and the other pair of opposite side walls is formed of one body panel and a pair of chamfered panels provided on both sides in the width direction. 2 cylinder panel P ₂ and the second is continuously provided on both sides, formed by the third chamfer panel CP _2, CP _3, 4 the other side wall is that the fourth cylinder panel P ₄ and continuously provided on both sides , is formed by the fifth chamfer panel _CP 4, CP _5, the fifth chamfered panel CP ₅ are bonded by superposing the first chamfered panel CP _1.

Here, in the case assembly device automatically assembling a flat folded from the case K ₁ 4 square case is generally conveying the flat folded case in one direction, the suction pads provided on the conveying path One of the upper two torso panels is sucked, and the suction pad is rotated 90 ° around the outer edge of the other torso panel as a rotation axis to open a quadrangular box. by employing the case assembly devices known from the prior art, such as, to be easy to form the quadrangular cylindrical case K ₂ shown in FIG. 12 by Hirakibako a flat folded case K ₁ shown in FIG. 15 it can.

1 to 8, the barrel portion is formed in an octagon from the rectangular cylindrical case K ₂ shown in FIG. 12, and the first barrel panel P ₁ and the third barrel panel P ₃ are respectively provided at one end in the longitudinal direction. The inner side of the corresponding flap F ₃ connected to one end in the lengthwise direction of the flap F ₁ , the second trunk panel P _2, and the fourth trunk panel P ₄ , respectively, at the corresponding horizontal fold line 2. The case assembly apparatus which forms the octagonal cylindrical case with which bottom part opening was closed by bending to the side is shown.

As shown in FIGS. 1 to 3, the case assembling apparatus includes _two parallel roller tables 11 that support the second body panel P ₂ on the side wall, which is the lower surface of the rectangular cylindrical case K ₂ shown in FIG. The support table 12 connected to the discharge end of the roller table 11 and the rectangular cylindrical case K ₂ fed onto the supply end of the roller table 11 are connected to the supply end of the support table 12 along the roller table 11. It has a case transporter 13 that transports it upward.

Here, the square tubular case K _2, and the second cylinder panel P ₂ of a pair of opposing side walls located up and down in the fourth cylinder panel P ₄ are horizontal each state, the third cylinder panel P ₃ vertical state And the bottom forming inner flap F ₁ , and the second trunk panel P ₂ and the fourth trunk panel P, which are connected to the respective one ends of the first trunk panel P ₁ and the third trunk panel P _{3. 4} is in an incompletely closed state in which the bottom forming outer flaps F ₃ connected to the respective one end portions are closed halfway, and the other ends of the first body panel P ₁ and the third body panel P ₃ The lid forming inner flaps F ₂ provided continuously to the respective parts, and the lid forming outer flaps F ₄ provided respectively connected to the other ends of the second trunk panel P ₂ and the fourth trunk panel P ₄ , respectively, Roller in an open state extending straight from the corresponding torso panel It is adapted to be fed to the Buru 11.

Case feed device 13 consists of a chain conveyor,押爪13b is provided on the chain 13a, stopped by pressing the押爪13b is square tubular case K ₂ is fed onto the feed end of the support table 12 To do. The stop position is an assembly station 14.

On one side of the square tube-shaped transport path in case K _2, the vertical shape of the guide plate 15 is provided a bottom-forming outer flap F ₃ is slidably guided, also, on the other side of the transport path, open A flap guide 16 that slides and guides the end portions of the inner flap F ₂ and the outer flap F ₄ for forming the lid is provided below, and the guide plate 15 and the flap guide 16 are provided downstream along the support table 12. It extends for a long time.

The assembly station 14, the linear rails 17 of the two rows parallel to one side of the open end of the square tubular casing K ₂ stop at the assembly station 14 is fixedly provided. Linear rail 17 extends long from the rear end side to the square tubular case K _2, and the slide member 18 is provided so as to be parallel thereto between linear rails 17 of the two parallel strip.

  The slide member 18 is formed of a beam having a square cross section, and a plurality of slide blocks 19 provided on both sides of the rear end portion are slidable along each of the two linear rails 17.

The slide member 18 is a movable support on linear rails 17 toward the opening of the square tubular casing K ₂ to stop at the assembly station 14, the case forming device 20 is supported at its distal end .

The slide member 18 is reciprocated by the reciprocating device 30. The reciprocating device 30 is provided with a toothed pulley 32 that is rotationally driven by a motor 31 with a speed reducer below the slide member 18, and a toothed belt 33 that is hung on the lower outer periphery of the toothed pulley 32. Guided by a pair of front and rear fixed rollers 34a and 34b arranged on the upper side, one end is fixed to the front end of the slide member 18 and the other end is fixed to the rear end of the slide member 18. and, toward the sliding member 18 by the rotation in the direction indicated by the arrow in Figure 1 of the toothed pulley 32 to the square tubular casing K ₂ side is advanced to its front end portion, to its rear end portion by rotation in the opposite direction I try to retreat.

Here, the reciprocating device 30, opening from the standby position to casing forming apparatus 20 supported by the distal end portion of the slide member 18 is opposed to the opening of the square tubular case K ₂ to 4 square tubular case K in ₂ The position where the head moves forward and stops is defined as the first forward stop position, and the slide member 18 is moved forward in two stages from the first forward stop position to a second forward stop position separated by a predetermined distance. Yes.

As shown in FIGS. 4 to 7, the case forming device 20 includes a pair of panel pressing devices 21 provided to correspond to the second body panel P ₂ and the fourth body panel P ₄ , and the first body panel. a pair of panel position regulating device 22 provided to correspond to each of P ₁ and the third cylinder panel P _3, consisting of the flap pressing apparatus 23 provided to correspond to the flaps F ₁ for the bottom formed.

As shown in FIG. 6A, the panel pressing device 21 includes a cylinder 21a supported by the slide member 18 and a pair of pressing plates 21b reciprocated in the contact / separation direction by the cylinder 21a. width of 21b are equal to each width of the corresponding second cylinder panel P ₂ and the fourth cylinder panel P _4, the length dimension, corresponding second cylinder panel P ₂ and the fourth cylinder panel P Each of the lengths of ₄ is shorter. In square tubular case K _2, press plate 21b of one panel pressing device 21 disposed on the upper side, the fourth cylinder panel P ₄ is pressed upwardly (outwardly), are arranged on the lower side pressing plate 21b of the other panel pressing device 21 which are is adapted to press the second cylinder panel P ₂ downward (outward).

  In addition, each pressing plate 21b is inclined so that both end portions are along each chamfered panel after molding, and the width dimension of the surface in contact with each trunk panel is made equal to the width dimension of the trunk panel. However, instead of the inclined shape, the cross-sectional shape may be a rectangular shape in which the width dimension of the surface in contact with each trunk panel is equal to the width dimension of the trunk panel. Further, the width dimension of the surface of the pressing plate 21b on the side in contact with each trunk panel may be smaller than the width dimension of the trunk panel.

As shown in FIG. 7 (c), the panel position regulating device 22 includes a cylinder 22a which is supported by the slide member 18 in a direction away from each other to define a position from the standby position by the cylinder 22a in square tubular inside casing K ₂ forward movement is the result from a pair of regulating plates 22b, are provided corresponding to each of the first cylinder panel P ₁ and the third cylinder panel P ₃ in.

Defined position of the pair of regulating plates 22b is between the size first cylinder panel P ₁ of the inner surface and the third cylinder panel P ₃ of the inner surface of the octagonal cylindrical case K ₃ shown in Figure 13 between the respective surfaces It is a position that is equal to the dimension.

The width dimension and a length dimension of the regulation plate 22b is shorter dimension than the corresponding width dimension of the length dimension of the first cylinder panel P ₁ and the third cylinder panel P _3.

Here, the square tubular case K _2, each of the second cylinder panel P ₂ and the fourth cylinder panel P ₄ is outwardly by the pressing plate 21b of the pair of panel pressing device 21 to move in a direction away from each other When pressed toward each other, each side end of the pressing plate 21b is brought into contact with the vertical crease line 1 and the chamfered panels CP ₂ , CP ₃ and the fourth body panel are provided continuously on both sides of the second body panel P _2. The chamfered panels CP ₄ and CP ₅ continuously provided on both sides of the P ₄ are bent at the longitudinal crease line 1 so as to be inclined with respect to the corresponding trunk panels, and the first trunk panel P ₁ and the third trunk. each panel P ₃ is moved towards each other inwardly. During this movement, each chamfered panel is folded in an inclined manner along the other vertical crease line 1 on the side of the chamfered panels CP ₂ , CP ₃ , CP ₄ and the vertical crease line _{1 on} the side of the chamfered panel CP ₁ . The panel position restricting device 22 is a pair of restricting plates 22b that are moved forward from the standby position to the predetermined position by a cylinder 22a, and thereby the second body panel P _{2 of the} chamfered panels CP ₂ and CP _3. The movement of the first body panel P ₁ and the third body panel P ₃ that move inward as the inclination angle with respect to and the inclination angle of the chamfered panels CP ₄ and CP ₅ with respect to the fourth body panel increases, barrel of the rectangular tube-shaped case K ₂ is adapted to hold the condition to be shaped into an octagon.

As shown in FIGS. 4 and 8, the flap pressing device 23 includes a cylinder 23a supported by the slide member 18 and a clamping plate 23b that is moved forward by the cylinder 23a. The flap pressing apparatus 23, the forward movement of the holding plate 23b when stopped in the second forward stop position of the case forming apparatus 20, the transverse fold lines corresponding bottom forming the flaps F ₁ and the outer flap F _3, respectively It is bent at 2 and sandwiched between the guide plate 15.

Case assembly apparatus shown in the embodiment consists of the structure described above, by the case conveyor device 13 is square tubular case K _2, as shown in FIGS. 1 and 2, is stopped is conveyed to the assembly station 14, the reciprocating operated device 30 is actuated, the sliding member 18 is advanced toward the four corners tubular in case K _2, as shown in FIGS. 4 and 5, the case formed supported on the distal end portion of the slide member 18 device 20 enters through the opening into the case K _2.

As shown in FIGS. 4 and 5, when the first forward stop position until the slide member 18 to the case forming device 20 is disposed at the four corners tubular case K ₂ of stopped moves, reciprocating device 30 is stopped . The first forward stop position is a position at which the pressing plates 21b of the pair of panel pressing devices 21 of the case forming device 20 completely face the corresponding fourth barrel panel P ₄ and second barrel panel P ₂ . After the case forming device 20 is stopped, the cylinders 21a of the pair of panel pressing devices 21 are extended, and the pair of pressing plates 21b are moved by a certain amount in the outward direction away from each other. Also, the cylinder 22a of the pair of panel position regulating device 22 is also extended, a pair of regulating plates 22b is dimension between the respective surfaces of the first cylinder panel P ₁ of the octagonal cylindrical case K ₃ shown in FIG. 13 the inner surface And the third barrel panel P ₃ are moved to a specified position equal to the dimension between the inner surface of the third trunk panel P ₃ .

The movement in the outer direction of the pressing plate 21b of the pair of panel pressing device 21, the fourth cylinder panel P ₄ and the second cylinder panel P ₂ is pressed by the pressing plate 21b, a fourth cylinder panel P ₄ upward (outer while moving parallel to the orientation), the second waist panel P ₂ is moved parallel downward (outward).

Fourth by the movement of the body panel _{P 4} and the second cylinder panel _{P 2,} is provided continuously on both sides of the fourth cylinder panel _{P 4} chamfer panel _CP 4 provided continuously on both sides, CP ₅ and the second cylinder panel _{P 2} Each of the chamfered panels CP ₂ and CP ₃ is bent and inclined at the corresponding longitudinal crease line 1, and the inclination causes the first trunk panel P ₁ and the third trunk panel P ₃ to be inward, which is a direction in contact with each other. Move towards.

As each of the fourth cylinder panel P ₄ and the second cylinder panel P ₂ is moved by a constant amount outward, as shown in FIG. 7 (d), the first cylinder panel P ₁ and the third cylinder panel P ₃ is defined position in contact with the regulating plate 22b on the respective pair of pressing plates 21b can not be moved any more outward, the square tubular case K _2, the body portion is formed into an octagon, as shown in FIG. 13 , the octagonal tubular case _{K 3} is formed.

After molding of the octagonal tubular case K _3, reciprocating device 30 is actuated to advance the slide member 18 again. Octagonal tubular case K ₃ by its advanced is advanced toward the guide plate 15 in a state held by a pair of panel pressing device 21 and a pair of panel position regulating device 22, the case forming device 20 is a second forward stop When the predetermined distance is moved to the position, the reciprocating device 30 stops.

During forward movement of the casing forming apparatus 20, the respective surfaces of the pair of pressing plates 21b slide to the corresponding inner surface of the second cylinder panel P ₂ and the fourth cylinder panel P _4, each surface of the pair of regulating plates 22b are The first body panel P ₁ and the third body panel P ₃ slide on the corresponding inner surfaces.

Both the length of the pressure plate 21b and the regulating plate 22b is shorter than the length of the first cylinder panel P ₁ to fourth cylinder panel P _4, it protrudes out from the inner surface of these cylinders panel when the sliding Never

As shown in FIG. 5, by the advancement of the octagonal cylindrical case K ₃ , the pair of bottom forming outer flaps F ₃ abut against the guide plate 15 and are folded inward along the corresponding horizontal fold lines 2. When the outer flap F ₃ is previously folded the inner overlapping the flap F ₁ closes the opening of the octagonal barrel, holding plates 23b and the cylinder 23a of the flap pressing apparatus 23 is stopped in the second forward stop position is extended Move forward. As a result of the advance, the inner flap F ₁ and the outer flap F ₃ are sandwiched between the clamping plate 23b and the fixed guide plate 15 as shown in FIG. 8, and applied to the surface of the inner flap F ₁ in advance. By the adhesive, the inner flap F ₁ and the outer flap F ₃ are bonded together to form a closed bottom portion, thereby forming an octagonal cylindrical case K ₄ with a bottom.

After the formation of the bottomed octagonal tubular case _{K 4,} the cylinder 21a of the panel pressing device 21, the respective cylinders of the cylinder 23a of the cylinder 22a and the flap pressing apparatus 23 of the panel position regulating device 22 is contracted, the pressing plate 21b, each surface of the regulation plate 22b and sandwiching plate 23b is separated from the inner surface of the bottomed octagonal tubular case K _4, then, by the operation of the reciprocating device 30, the slide member 18 is retracted, back to the standby position.

In case assembly apparatus shown in the embodiment, in order to operate as described above, the body portion and octagonal, octagonal cylindrical cylinder bottom is formed by the joining of the outer flap F ₃ and the inner flaps F ₁ parts may easily efficiently the case K ₄ having, moreover, can be safely assembled.

In the embodiment, a square tubular case K _2, horizontally conveyed sideways in a state where the opening is a lateral, by moving the casing forming apparatus 20 in the horizontal direction rectangular tube from the opening portion case Although the body portion is formed in an octagonal shape within K ₂ , the rectangular cylindrical case K ₂ is transported in a vertically oriented state with the opening facing upward, and above the opening. The case forming apparatus 20 may be moved from the inside to the inside, and the body portion may be formed into an octagon.

In the embodiment, moving the regulating plate 22b of the panel position regulating device 22 is moved outwardly by the cylinder 22a, until the regulating position for regulating the stop position of the first cylinder panel P ₁ and the third cylinder panel P ₃ However, it may be a fixed arrangement located at the restriction position.

Further, it may be a case without a lid that does not have the inner flap F ₂ and the outer flap F ₄ .

In FIG. 9, a corner forming device 40 is provided obliquely below a chamfered panel CP ₃ that is formed in an inclined shape by the pressing plate 21 b of the panel pressing device 21 and the restricting plate 22 b of the panel position restricting device 22. In this corner forming apparatus 40, the molded plate 40b which is forward and backward by the cylinder 40a, and beveled panel CP ₃ after molding, is provided with a molded recess 40c for forming the two corner portions provided on both sides thereof.

The corner molding device 40 as described above, provided corresponding to each of the four chamfered panels, the molding condition of the body is octagonal cylindrical case K _4, chamfered panel CP molded plate 40b by extension of the cylinder 40a ₁ is moved toward the respective CP _5, by pressing the respective chamfered panel CP ₁ to CP _5, it is possible to improve the bending accuracy of the chamfered panel CP ₁ to CP _5, a higher dimensional precision An octagonal body can be formed.

In the embodiment shown in FIG. 1, opening the slide member 18 to the casing forming apparatus 20 is square tubular case K in ₂ from a standby position facing the opening of the square tubular case K ₂ by reciprocating device 30 The position that is further advanced and stopped is defined as the first forward stop position, and the slide member 18 is moved forward in two stages from the first forward stop position to a second forward stop position that is further forward by a predetermined distance. in the embodiment shown in FIG. 10, to the position where the case forming device 20 is disposed at the four corners tubular case K in ₂ is moved forward movement is stopped.

In the embodiment shown in FIG. 10, a window 25 is provided in the guide plate 15, and a flap pressing device 23 is provided at a position corresponding to the window 25, while the case forming device 20 includes an inner flap F ₁ . A holding plate 26 for preventing the body from falling is provided. Here, the window 25 is set to a position facing the forward stop position of the case forming apparatus 20 that is moved back and forth by the reciprocating device 30 shown in FIG.

  Since the other configuration is the same as that of the embodiment shown in FIG. 5, the same components are denoted by the same reference numerals and description thereof is omitted.

In the embodiment shown in FIG. 10, the pressing plates 21 b of the pair of panel pressing devices 21 are in a stopped state of the slide member 18 in which the case forming device 20 is positioned in the rectangular cylindrical case K ₂ that stops at the assembly station 14. The outwardly moving movement of each of the pair of second body panels P ₂ and P ₄ facing each other presses the rectangular cylindrical case K ₂ to form an octagonal cylindrical case as shown in FIG. It is molded to K _4.

After molding of the octagonal tubular case _{K 4,} by the operation of the flap pressing apparatus 23, to press the bottom flap _{F 3} in the holding plate 23b, the bottom flaps _F 1, _{F 3} by the holding plate 26 and its clamping plate 23b The overlapped portion of the bottom flaps F ₁ and F ₃ is bonded with an adhesive applied in advance to form an octagonal cylindrical case K ₄ with a bottom.

Also in the embodiment shown in FIG. 10, the octagonal cylindrical case K ₄ in which the trunk portion is octagonal and the bottom opening is closed by the bottom flaps F ₁ and F ₃ can be easily and efficiently assembled.

In FIG. 10, the flap pressing device 23 is provided at the front position in the forward stop position of the case forming device 20, but the flap pressing device 23 is provided instead of the holding plate 26 provided in the case forming device 20. after molding of the octagonal cylindrical case K ₄ shown in, by the operation of the flap pressing apparatus 23, to press the bottom flaps F ₁ of 8 square tubular case K _4, the octagonal tubular case K ₄ to the guide plate 15 The bottom flaps F ₁ and F ₃ may be pressed against the guide plate 15 to adhere the bottom flaps F ₁ and F ₃ .

P ₁ 1st body panel (body surface forming body panel)
P ₂ 2nd body panel (side surface forming body panel)
P3 _3rd body panel (body surface forming body panel)
P ₄ 4th trunk panel (side panel cylinder)
CP ₁ 1st chamfer panel CP ₂ 2nd chamfer panel CP ₃ 3rd chamfer panel CP ₄ 4th chamfer panel CP ₅ 5th chamfer panel F ₁ inner flap (bottom flap)
F ₃ outer flap (bottom flap)
13 Case conveying device 14 Assembly station 15 Guide plate 18 Slide member 20 Case forming device 21b Press plate 22 Panel position restricting device 22b Restricting plate 23 Flap pressing device 23b Nipping plate K ₂ Quadrangular cylindrical case K ₄ Octagonal cylindrical with bottom Case

Claims (2)

There are two pairs of opposing side walls, each pair of opposing pair of side walls is formed by one wife surface forming cylinder panel, and each of the remaining one pair of opposing pair of side walls is one side forming cylinder. A state in which each of the bottom flaps connected to the end of each of the trunk panels is bent inward in a rectangular cylindrical case formed by a panel and a pair of chamfered panels provided on both sides thereof In case assembling equipment for assembling from bottom to octagonal cylindrical case with bottom,
A case transporting device that transports the rectangular cylindrical case toward the assembly station, a guide plate that guides the movement of the bottom flap when the square cylindrical case is transported by the case transporting device, and the transported to the assembly station and stopped. A sliding member provided movably with respect to the rectangular cylindrical case, a case forming device supported at the tip of the sliding member, and the case forming device inserted into the rectangular cylindrical case. A reciprocating device that moves the slide member in two stages to a second forward stop position that is a predetermined distance away from the first forward stop position, with the stop position facing the side surface forming body panel as a first forward stop position; Consists of
The case forming device has a pressing plate, and a pair of panel pressing devices that press each of the side surface forming drum panels outwardly by the pressing plate, and the side surface forming drum panel by the panel pressing device. The chamfered panel is inclined by pressing, and each of the wife face forming torso panels that moves inward as the inclination angle increases is held at a position where the quadrangular cylindrical case is formed into an octagonal cylindrical case. After the octagonal cylindrical case is molded, the bottom flap is pressed outwardly in the stopped state where the case molding device is moved forward to the second forward stop position. Ri Na has a flap pressing apparatus for adhering the overlapping portions of the bottom flap in a pre-applied adhesive on the overlapping portion of the flap,
The panel position restricting device has a restricting plate, and the restricting plate is movable between a standby position and a specified position that holds the end face forming body panel at a position where it is molded into an octagonal cylindrical case. Tei Rukoto case assembly apparatus according to claim. There are two pairs of opposing side walls, each pair of opposing pair of side walls is formed by one wife surface forming cylinder panel, and each of the remaining one pair of opposing pair of side walls is one side forming cylinder. A state in which each of the bottom flaps connected to the end of each of the trunk panels is bent inward in a rectangular cylindrical case formed by a panel and a pair of chamfered panels provided on both sides thereof In case assembling equipment for assembling from bottom to octagonal cylindrical case with bottom,
A case transporting device that transports the rectangular cylindrical case toward the assembly station, a guide plate that guides the movement of the bottom flap when the square cylindrical case is transported by the case transporting device, and the transported to the assembly station and stopped. A sliding member provided movably with respect to the quadrangular cylindrical case, a case forming device supported by a tip portion of the sliding member, and the case forming device inserted into the quadrangular cylindrical case. It consists of a reciprocating device that moves the slide member forward to a position facing the side forming body panel,
The case forming device has a pressing plate, and a pair of panel pressing devices that press each of the side surface forming drum panels outwardly by the pressing plate, and the side surface forming drum panel by the panel pressing device. The chamfered panel is inclined by pressing, and each of the wife face forming torso panels that moves inward as the inclination angle increases is held at a position where the quadrangular cylindrical case is formed into an octagonal cylindrical case. it and a panel position regulating device which,
The panel position restricting device has a restricting plate, and the restricting plate is movable between a standby position and a specified position that holds the end face forming body panel at a position where it is molded into an octagonal cylindrical case. ,
A case assembly comprising a flap pressing device that presses the bottom flap after forming the octagonal cylindrical case and adheres the overlapping portion of the bottom flap with an adhesive previously applied to the overlapping overlap of the bottom flap. apparatus.

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