JP2008068544A - Manufacturing process and apparatus of compound container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fold-back method of the sheath fastening nail of a compound container which can easily, securely and swiftly fold back the fastening nail 26 of the sheath 20 fastening a container main body 10, and a fold-back apparatus of the sheath fastening nail. <P>SOLUTION: The fold-back method and the fold-back apparatus of the sheath fastening nail of the compound container mutually fastening the container main body and the sheath by folding back the fastening nail 26 of the sheath 20 inside, inserting the container main body 10 into the sheath and engaging the top step of a fastening protrusion 14 formed on the peripheral face of the container main body with the fastening nail of the sheathing body comprises using a die configured by an inside die 46 telescopically fitted in the outside die 45, bending the fastening nail of the sheathing nail inside by a lower die and subsequently folding back the fastening nail by the upper die. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method and an apparatus for manufacturing a composite container in which a container body is inserted into an exterior body, and a locking claw of the exterior body is engaged with a peripheral wall of the container body to engage the container body and the exterior body.

  Some composite containers are configured by inserting the bottom of the container body from the upper opening of the exterior body and engaging the container body with the exterior body (for example, Patent Document 1).

The composite container disclosed in Patent Document 1 has an opening at the top, a circular shape at the top horizontal section, a square shape at the bottom horizontal section, and a claw piece folded inward at the opening edge. A box (exterior body), and a cup-shaped container (container body) formed with an annular recess extending in the circumferential direction on the outer surface of the side wall; the cup-shaped container is inserted from the upper opening of the exterior body; The cup-shaped container is locked to the exterior body by engaging with the outer casing.
Japanese Utility Model Publication No. 3-7322 (see FIGS. 1 and 3)

  In such a composite container, the exterior body may be formed of paperboard in order to decorate the outer surface of the container by printing. In this case, for example, the assembly worker must fold the plate body into a box shape and then fold it 180 degrees inward so that the claw pieces overlap the side wall. It is extremely complicated to carry out with accuracy and speed.

  The subject of this invention is providing the manufacturing method and apparatus of a composite container which can turn back the latching claw of an exterior body accurately and rapidly.

  In order to solve the above-described problems, a method for manufacturing a composite container according to the present invention includes a container body having an opening at an upper portion and a locking protrusion protruding outward at an outer peripheral portion, and an upward opening. When the outer packaging body is combined with the outer packaging body when the outer packaging body is combined with the outer packaging body made of a paper outer packaging body having a latching claw divided into a plurality along the circumferential direction on the upper edge, The claw is folded inward, the container main body is inserted into the exterior body from above, and the engagement claw is engaged with the locking projection, thereby locking the container body and the exterior body together. In this manufacturing method, in order to fold back the latching claw, a composite mold constituted by a cylindrical first mold and a second mold that is inserted into the first mold is used. The locking claw is folded inward with the mold, and then the locking claw is folded back with the second mold.

  According to the above manufacturing method, the exterior body locking claw is folded back by the metal mold composed of a plurality of parts, so that the operation is simple. The locking claw is bent inward by the first mold, and then the second metal mold. Since the latching claw is folded back by the mold, the latching claw of the exterior body can be folded back quickly and accurately.

  In a specific aspect or aspect of the present invention, in the method for manufacturing a composite container, the first and second molds are arranged coaxially and can change the relative position in the axial direction. By adjusting the timing of changing the position, the upper edge and the locking claw are sandwiched between the first and second molds. In this case, the latching claw can be folded back so as to be sandwiched between the first and second molds by moving the composite mold with respect to the exterior body and changing the relative position between the two.

  In another aspect of the present invention, when the locking claw is bent inward by the first mold, the upper portion of the side wall of the exterior body is expanded outward by the expanding means that moves together with the first mold. . In this case, for example, after the upper open portion of the rectangular exterior body is deformed into a smooth shape such as a circle by the expanding means, the folding work using the first mold or the like is performed. That is, the entire upper edge of the exterior body can be brought into contact with the inner peripheral surface of the first mold so as to have a smooth shape, and the locking claws can be bent more reliably.

  In still another aspect of the present invention, the container main body projects downward, and the exterior body has a substantially inverted truncated pyramid shape or an inverted truncated cone shape. In this case, the composite container is in the shape of a prism or cylinder at the lower part and circular at the upper part, so that composite containers of various shapes can be provided.

  In yet another aspect of the present invention, the container body is formed of a synthetic resin. In this case, various substances including food can be stored in the container body of any shape.

  An apparatus for manufacturing a composite container according to the present invention includes a container body having an opening at an upper portion and a locking protrusion protruding outward at an outer peripheral portion, and an upper edge in a circumferential direction. For a composite container having a paper outer body having a latching claw divided into a plurality along, when the outer body is combined with the outer side of the container body, the latching claw of the outer body is folded inside, and the container By inserting the main body into the exterior body from above and engaging the locking claw with the locking projection, the container body and the exterior body are locked together. In the manufacturing apparatus, the first mold and the second mold are respectively formed with respect to the composite mold constituted by the cylindrical first mold and the second mold fitted and inserted into the first mold. By moving, a mold driving device is provided that bends the locking claw inward with the first mold and then folds the locking claw with the second mold.

  According to the above manufacturing apparatus, the exterior body locking claw is folded back by a mold composed of a plurality of parts, so the operation is simple, and the locking claw is bent inward by the first mold driven by the mold driving device. Then, since the locking claw is folded back by the second mold driven by the mold driving device, the locking claw of the exterior body can be folded back quickly with high accuracy.

  In a specific aspect or aspect of the present invention, in the composite container manufacturing apparatus, the first mold is formed on a peripheral wall inner surface formed in a tapered shape that opens outward as it goes downward, and on an upper edge of the peripheral wall inner surface. And an inwardly extending flange, and a curved surface formed at a meeting portion between the inner surface of the peripheral wall and the flange. In this case, the locking claw can be bent without difficulty by moving the upper end of the locking claw along the peripheral wall inner surface, the curved surface, and the flange.

  In another aspect of the present invention, the expansion means is provided on the second mold and expands the upper side wall of the exterior body outward when the locking claw is folded inward by the first mold. Is further provided. In this case, for example, after the upper open portion of the rectangular exterior body is deformed into a smooth shape such as a circle by the expanding means, the folding operation using the first mold or the like is performed. Bending can be performed more reliably.

  In still another aspect of the present invention, the spreading means is fixed to the first mold, the side ends are opposed to the inner surface of the peripheral wall of the first mold at a plurality of locations, and the lower end is below the lower end of the peripheral wall. It includes an expanded piece that is extended and has an inclined surface formed toward the center on the lower peripheral surface. In this case, the expansion piece is provided in association with the first mold, and the upper open portion of the exterior body can be easily expanded.

  The present invention will be described below with reference to illustrated embodiments. 1 to 3 are an exploded perspective view, a developed view, and a side cross-sectional view showing the overall configuration of a composite container to which the present invention is applied.

  The composite container 100 is attached so as to close a substantially hemispherical container body 10 made of a synthetic resin molded body, a paperboard exterior body 20 combined with the outside of the container body, and an upper opening 11 of the container body. And a lid 30.

  The container body 10 is formed by, for example, vacuum molding, pressure molding, injection molding, or the like using a synthetic resin such as polyethylene or polypropylene, and includes a flange 13 that extends radially outward at the upper end of the peripheral wall 12. The flange 13 has a substantially L-shaped cross section, and an end edge extends downward. Then, locking protrusions 14 that are divided into eight in the circumferential direction are arranged along the circumferential direction on the upper outer surface of the peripheral wall 12. These locking projections 14 protrude outward so as to engage with locking claws 26 provided on the exterior body 20.

  The exterior body 20 is assembled by bending a paperboard base paper. As shown in FIG. 2, the base paper has four side plates 21, 22, 23, and 24. Further, bottom plate main portions 25a and 25a are connected to lower ends of the side plates 21 and 23 via bending lines a and a, respectively, and the bottom plate main portions 25a and 25a have oblique bending lines. Joining pieces 25b and 25b are connected to each other through b and b, respectively, and auxiliary plates 25c and 25c are connected to the lower ends of the side plates 22 and 24 through folding lines c and c, respectively. Further, a joining piece 21 a is connected to the side end of the side plate 21 via a folding line d.

  Moreover, in this exterior body 20, it is an upper end of each side plate 21,22,23,24, Comprising: As shown in FIG. 26 are formed. Further, in the folding line e, incisions 27 are formed in order to make it easier to fold each locking claw 26 toward the side plate sides 21, 22, 23, 24. The cuts 27 are not necessarily required depending on the material of the exterior body 20, but can be replaced with ruled lines or the like formed with dents, for example.

  And this exterior body 20 is assembled | attached in three dimensions by gluing joining piece 25b, 25b to the lower surface of each auxiliary | assistant board 25c, 25c, and also gluing joining piece 21a to the inner surface of the side plate 24, Each locking claw 26 is folded back to the inner surface of the side plates 21, 22, 23, 24.

  The lid body 30 is formed into an inverted dish shape by using vacuum, molding, injection molding, or the like using a synthetic resin such as polyethylene or polypropylene. On the outer peripheral edge of the top plate 31, an engaging portion 32 having a cross-section of an inverted L shape is formed.

  As shown in FIG. 3, the container body 10 is inserted into the exterior body 20 formed in this way. At this time, the locking claw 26 of the exterior body 20 is locked at the upper portion 14a of the locking projection 14 of the container body 10. Thereby, the container main body 10 is reliably fixed to the exterior body 20. Further, after the contents are stored in the container body 10, the lid 30 is put on the upper edge of the container body 10, and the engaging portion 32 of this lid is fitted to the flange 13 of the container body 10. At this time, the engaging portion 32 of the lid 30 is fitted to the flange 13 of the container body 10. That is, the lid 30 is detachably attached to the container body 10. In addition, by rotating the container main body 10 about the axis with respect to the outer casing 20, the locking claw 26 is released from the locking projection 14, and the container main body 10 is separated from the outer casing 20. it can.

  FIG. 4 conceptually shows an assembling apparatus 40 that continuously attaches the container body 10 and the exterior body 20 described above.

  The assembling apparatus 40 takes out one of the many exterior bodies 20 accommodated in addition to the chain conveyor 41 for conveying the members, and supplies the exterior body supply section A to the chain conveyor 41 and the chain conveyor 41. The locking claw folding part B that turns back the locking claw 26 of the exterior body 20 conveyed by the inside, and the container body mounting part for mounting the container body 10 above the exterior body 20 that is further conveyed by the chain conveyor 41 C.

  In order to position and hold the exterior body 20 on the chain conveyor 41, a long and short set of positioning blocks 41a and 41b are installed in a large number with appropriate intervals. And the V-shaped notch 41v is formed in the mutually opposing site | part of the longitudinal direction intermediate part of both positioning block 41a, 41b, and the lower corner | angular part of the exterior body 20 is formed between those notch 41v, 41b. , The exterior body 20 is placed there. Here, one positioning block 41a is fixed to two chains 41c and 41c provided on the inner side at both ends in the longitudinal direction, and moves in the GH direction as the sprocket 41e rotates. The other positioning block 41a is fixed to the two outer chains 41d and 41d at both ends in the longitudinal direction, and moves in the GH direction as the sprocket 41f rotates. These sprockets 41d and 41f are rotationally driven by a conveyor operating actuator 41k, and move the chains 41d and 41d at a necessary timing along the GH direction in the illustrated portion. As a result, the conveyor actuation actuator 41k moves a large number of blocks 41a and 41b, which hold the large number of exterior bodies 20 so as to sandwich each of the large number of exterior bodies 20, by a necessary amount in the GH direction at a necessary timing.

  In the chain conveyor 41 described above, the distance between the pair of positioning blocks 41a and 41b is set and adjusted by adjusting the rotational positions of the sprockets 41d and 41f, that is, the positions of the chains 41c and 41d. That is, by positioning the other block 41b moved by the outer set of chains 41d and 41d with respect to the one block 41a moved by the set of inner chains 41c and 41c, the positioning blocks 41a and 41b are both positioned. Can be adjusted. Therefore, without changing the positioning blocks 41a and 41b, the exterior body 20 of various sizes can be sequentially conveyed to an arbitrary position while being securely held by the chain conveyor 41 only by adjusting the positions of the chains 41c and 41d. Can do. Furthermore, when holding the exterior body 20 with the blocks 41a and 41b, the V-shaped cutout 41 is used to hold the pair of corners at the opposite corner of the exterior body 20, so that the exterior body 20 is securely held. Can be prevented, and deformation of the outer package 20 can be prevented.

  In the exterior body supply unit A, the exterior body 20 is folded into a rectangular plate shape as shown in FIG. 5, and these are held in an overlapped state as shown in FIG. The exterior body 20 in this state is a state in which the locking claw 26 is not folded back.

  The exterior body supply unit A includes an exterior body takeout mechanism 42 for taking out one of the exterior bodies 20 accommodated in a stacked manner. The exterior body take-out mechanism 42 includes a hollow rod 42b having a suction portion 42a at the tip, a pair of positioning blocks 41a provided on the chain conveyor 41 from the housing portion of the exterior body 20 through the rod 42b. The outer body taking-out actuator 42c is moved to a predetermined position above 41b, and a vacuum suction device 42d for sucking the air in the suction portion 42a through the hollow rod 42b.

  In addition, the exterior body supply unit A is expanded by the exterior body take-out mechanism 42, and the exterior body 20 taken out above the set of positioning blocks 41a and 41b provided in the chain conveyor 41 is expanded. In addition, an exterior body lowering mechanism 43 for lowering and mounting on the set of positioning blocks 41a and 41b is provided. The exterior body lowering mechanism 43 includes a pair of pressing pieces 43 a that press the exterior body 20 so as to sandwich the exterior body 20 from both ends of the folded exterior body 20, and the pressing pieces 43 a are in contact with the exterior body 20. A pressing piece horizontal movement actuator 43b that is moved in a detachable manner, a pressing piece lowering actuator 43c that lowers the pressing piece 43a to the positioning blocks 41a and 41b of the chain conveyor 41, and the like.

In the exterior body supply unit A, the exterior body take-out actuator 42c of the exterior body take-out mechanism 42 is operated to move the suction portion 42a to the exterior body 20 accommodated in a stacked manner, and the vacuum suction machine 42d. One of the exterior bodies 20 is sucked by the suction force, and then the exterior body take-out actuator 42 c is reversely operated to move the exterior body 20 between the pressing pieces 43 a and 43 a of the exterior body lowering mechanism 43.
Next, the pressing piece horizontal movement actuator 43b is actuated to move the pressing pieces 43a and 43a toward each other so as to clamp the folded exterior body 20, thereby expanding the exterior body 20. In the meantime, the exterior body 20 sucked by the suction force of the vacuum suction machine 42d is released. Further, the suction portion 42a is returned to the initial position by reversely operating the outer body take-out actuator 42c.
Next, the pressing piece lowering actuator 43c is actuated to lower the exterior body 20 sandwiched between the pressing pieces 43a and 43a onto a set of positioning blocks 41a and 41b provided on the chain conveyor 41. Are accommodated in the notches 41b and 41b formed in the positioning blocks 41a and 41a.
Next, the pressing piece horizontal movement actuator 43b is reversely operated to move the pressing pieces 43a and 43a in directions away from each other, thereby releasing the pressing pieces 43a and 43a from the exterior body 20, and the pressing piece lowering actuator 43c. The reverse operation is performed to return the pressing pieces 43a and 43a to the initial positions.

  The locking claw folding portion B includes a locking piece folding mechanism 44. This locking piece folding mechanism 44 is held by a lower outer mold 45, an upper inner mold 46, and a set of positioning blocks 41a and 41b provided on the chain conveyor 41. A die lowering actuator 44a that is lowered toward the opening of the exterior body 20 is formed. Here, the composite mold CM composed of the outer mold 45 and the inner mold 46 moves as a whole in the axial direction of the cylindrical outer mold 45. At this time, the coaxial direction of both the molds 46 and 47 is moved. The relative position is variable as will be described in detail below. Note that the composite mold CM can be exchanged according to the size of the exterior body 20 and the like.

  As shown in FIG. 6, the outer mold 45 has a cylindrical portion 47 having an inner diameter that surrounds the outer periphery of the exterior body 20, and a cross shape that crosses the inner surface of the cylindrical portion 47 in the diametrical direction. And an expanding piece 48 extending vertically downward. Here, the cylindrical portion 47 is a first mold for folding back the locking claw 26. Further, the spreading piece 48 is a spreading means for spreading the side plates 21, 22, 23, 24 of the exterior body 20 on the side of the latching claw 26, that is, the side wall upper part, outward.

  The cylindrical portion 47 has a tapered surface 47a that is an inner surface of a peripheral wall whose inner surface expands downward in the radial direction, and includes a flange 47b that extends inward at the upper end. A circular arc surface 47c is formed at the meeting portion between the upper end of the tapered surface 47a and the flange 47b. Further, with respect to the expanding piece 48, the side end faces the tapered surface 47a of the cylindrical portion 47 at four locations, the lower end extends below the lower end of the cylindrical portion 47, and extends downward toward the center toward the lower periphery. An inclined surface 48a that is inclined is formed.

  The inner mold 46 includes a cylindrical portion 49 that is inserted into the cylindrical portion 47 of the outer mold 45, and includes a flange 49a that extends outward at the upper end. The cylindrical portion 49 is formed with a notch 49 b that opens at the lower end and loosely fits into the expanding piece 48 of the outer mold 45. Here, the cylindrical portion 49 is a second die that is inserted into the cylindrical portion 47 that is the first die.

  As shown in FIG. 7, the outer mold 45 and the inner mold 46 allow the guide rod 50 planted on the upper surface of the outer mold 45 to pass through the hole 49 c formed in the flange 49 a of the inner mold 46. Thus, the mutual positioning (centering) is performed, and the compression coil spring 51 is fitted to the guide rod 50 between the outer mold 45 and the inner mold 46, whereby the outer mold 45 and the inner mold 46 are The distance between the two is maintained elastically. In this way, the inner mold 46 is slidably installed with respect to the outer mold 45.

In the locking claw folding mechanism B shown in FIG. 4, the outer die 45 and the upper die 46 are moved from the position shown in FIG. 8A by operating the die lowering actuator 44a as the die driving device. It is lowered to the position shown in FIG. Then, the tapered surface 47 a of the outer mold 45 abuts on the upper end of the locking claw 26 of the exterior body 20 and presses this upper end, so that the locking claw 26 is bent inward at the position of the cut 27.
Further, when the outer mold 45 and the inner mold 46 are lowered, as shown in FIG. 8C, the base portion of the locking claw 26 comes into contact with the curved surface 47c of the outer mold 45, and thereby the locking claw. 26 is bent inward by about 45 to 90 degrees with respect to the side walls 21, 22, 23 and 24. The outer mold 45 is stopped at that position by a stopper (not shown).
Further, when the die lowering actuator 44a is operated, only the inner die 46 is lowered, and as shown in FIG. 8 (d), the locking claw 26 is moved to the side walls 21 and 22 by the outer peripheral surface of the cylindrical portion 49. , 23 and 24 are bent approximately 180 degrees and are folded on the upper end portions of the side walls 21, 22, 23 and 24.
During the movement of the mold from FIG. 8 (a) to FIG. 8 (b), the expanding piece 48 comes into contact with the center in the width direction of the side walls 21, 22, 23, 24, and the upper portions of the side walls are removed. Expand towards. Thus, after the upper edge of the rectangular outer package 20 is bent outward and deformed into a circular shape, the folding work using the outer mold 45 or the like is performed. That is, since the entire upper edge of the outer package 20 can be made circular and brought into close contact with the curved surface 47c of the outer mold 45, the locking claw 26 can be bent more reliably.
Next, the mold lowering actuator 44a is reversely operated to return the molds 45 and 46 to the initial positions. At this time, the locking claw 26 is slightly restored and its lower end is separated from the side walls 21, 22, 23, 24, but is pushed by the peripheral wall 12 when the container body 10 is assembled, so that the locking projection 14 can be fixed. There will be no hindrance. In addition, in the lower end position shown in FIG. 8 (d), the height positions of both molds 45 and 46 substantially coincide with each other, but in the upper end position shown in FIG. 8 (a), the inner mold 46 is more outward. It is arranged at a position higher than 45.

  As shown in FIG. 4, the container body mounting portion C includes a container body supply mechanism 52 for supplying the container body 10 onto a set of positioning blocks 41a and 41b provided on the chain conveyor 41, and a set of these positioning blocks. And a container body pressing mechanism 53 that presses the container body 10 supplied onto 41a and 41b.

  The container body supply mechanism 52 includes a guide rail 54 that slidably supports the container body 10, an arm 55 a that moves the container body 10 on the guide rail, a conveyor 55 that moves the arm, and a container that operates the conveyor 55. The main body supply actuator 56 is used.

  The container main body pressing mechanism 53 includes a pressing member 57 inserted into the container main body 10 at the lower end, a pressing member pressing actuator 58 for moving the pressing member up and down, and the like.

  In this container main body mounting portion C, the container 55 is taken out one by one from a container main body storage portion (not shown) by operating the conveyor 55 by the container main body supply actuator 56 and thereby operating the arm 55a. The main body 10 is conveyed above a set of positioning blocks 41 a and 41 b provided on the chain conveyor 41.

  Next, the container body 10 is held on an extension from the end of the guide rail 54 by positioning means (not shown). Next, by operating the pressing member pressing actuator 58, the pressing member 57 is lowered, and the container body 10 is pressed by the exterior body 20 by the pressing member 57. Then, the container main body 10 is pushed into the exterior body 20, the locking projection 14 moves down by pushing the locking claw 26, and the locking claw 26 engages with the upper stage of the locking projection 14.

  The lid 30 is attached to the container body 10 at an appropriate time before or after the container body 10 is attached to the exterior body 20.

  Thus, the composite container in which the container main body 10 and the exterior body 20 are assembled is conveyed to the next process by the chain conveyor 41.

  As shown in FIG. 9, the actuators of the exterior body supply unit A, the locking claw folding unit B, and the container body mounting unit C are connected to a controller 60 and controlled by the controller according to the timing chart shown in FIG. Is done.

  That is, the conveyor actuation actuator 41c is intermittently actuated for a fixed time, and intermittently moves the positioning blocks 41a and 41b on the chains 41c and 41d. Then, during the period from when the positioning blocks 41a and 41b are moved, then stopped, and then started to move (1 cycle), the outer body take-out actuator 42c, the pressing piece horizontal moving actuator 43b, and the pressing piece lowering actuator 43c is sequentially operated, and the exterior body 20 is supplied onto a set of positioning blocks 41a and 41b provided on the chain conveyor 41. Further, while the positioning blocks 41 a and 41 b of the chain conveyor 41 are being moved, the container body supply actuator 56 is operated, and the container body 10 is located above the set of positioning blocks 41 a and 41 b provided on the chain conveyor 41. To be supplied. Further, while the chain conveyor 41 is stopped, the die lowering actuator 44a and the pressing member pressing actuator 58 are operated, and the locking claws 26 are turned back and the container body 56 is attached to the exterior body. The

  As mentioned above, although this invention was demonstrated according to embodiment, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

  For example, in the above-described embodiment, the container body 10 is projected in a hemispherical shape, but the container body 10 can be projected in a semi-elliptical sphere like a rugby ball cut in half. In the composite container 100 after assembly, the upper opening of the outer package 20 is also elliptical. Further, the container body 10 may be a cone or a truncated cone protruding downward.

  In addition, the exterior body 20 is formed in an inverted pyramid shape having a quadrangular cross section in the expanded state, but may be another polygonal inverted pyramid or a prism, and further, an inverted cone having a circular cross section. A conical shape including a base and a column can be used. When the exterior body 20 is a polygonal inverted truncated pyramid or prism, the cross-sectional shape of the container body 10 is also adapted to the cross-sectional shape of the exterior body 20. That is, in this case, the container body 10 is a pyramid projecting downward, a truncated pyramid, or the like.

  Further, the shape of the cylindrical portion 47 of the outer mold 45 can be changed according to the shape of the upper outer surface of the peripheral wall 12 provided in the container main body 10. For example, when the container main body 10 is a semi-elliptical sphere, the cylindrical portion 47. The inner shape of the is also made oval. At this time, the shape of the flange 47 b of the inner mold 46 is also adapted to the shape of the cylindrical portion 47.

  Moreover, the expansion piece 48 should just be able to expand especially the upper part of the exterior body 20 in a linear part, can be arrange | positioned in a suitable position in the relationship which avoided the interference with the cylindrical part 49, and employ | adopts various shapes. can do. Further, it is sufficient that the expanding piece 48 moves substantially in line with the outer mold 45, and it is necessary to provide a dimensional adjustment and an expansion / contraction mechanism corresponding to the shape of the outer package 20. Alternatively, it can be fixed to the inner mold 46 and can be operated independently from both molds 45, 46.

  Moreover, the structure of the assembly | attachment apparatus 40 shown in FIG. 4 is a mere example, The structure can be changed suitably for the exterior body supply part A, the latching claw folding | turning part B, the container main body mounting part C, etc. FIG. For example, in the container body mounting portion C, the guide rail 54, the arm 55a, the conveyor 55, and the like can be replaced with the chain conveyor 41.

1 is an exploded perspective view showing the overall configuration of a composite container to which the present invention is applied. It is an expanded view of the exterior body shown in FIG. It is sectional drawing of the state which assembled | attached the exterior body shown in FIG. 1, a container main body, and a cover body. It is the conceptual perspective view which showed the composite container assembly | attachment apparatus containing the folding | turning apparatus of the exterior body latching nail | claw of the composite container which concerns on this invention. It is the perspective view which showed the aspect of the exterior body used with the composite container assembly | attachment apparatus shown in FIG. It is the disassembled perspective view which showed the principal part of the folding | turning device of the exterior body latching nail | claw of the composite container which concerns on this invention. It is the perspective view which showed the state which assembled | attached the folding | turning apparatus of the exterior body latching claw shown in FIG. It is the operation | movement figure which showed the operation | movement procedure of the folding device of the exterior body latching claw shown in FIG. It is a control block diagram of each actuator of the composite container assembling apparatus shown in FIG. 10 is a time chart showing the operation timing of each actuator shown in FIG. 9.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Composite container, 10 ... Container main body, 11 ... Upper opening, 12 ... Perimeter wall, 13 ... Flange, 14 ... Locking protrusion, 14a ... Upper stage, 20 ... Exterior body, 21, 22, 23, 24 ... Side plate, 21a ... Joining piece, 25 ... Bottom, 25a ... Bottom plate main part, 25b ... Joining piece, 25c ... Auxiliary plate, 26 ... Locking claw, 27 ... Cutting, 30 ... Lid, 31 ... Top plate, 32 ... Engagement part 40 ... Assembly device, 41 ... Chain conveyor, 41a ... Positioning block, 41b ... Notch, 41c ... Actuator for conveyor operation, A ... Exterior body supply part, 42 ... Exterior body take-out mechanism, 42a ... Adsorption part, 42b ... Hollow rod, 42c ... Exterior body take-out actuator, 42d ... Vacuum suction machine, 43 ... Exterior body lowering mechanism, 43a ... Pressing piece, 43b ... Actuating element for horizontally moving the pressing piece , 43c: Actuator for lowering the pressing piece, B: Locking claw folding part, 44: Locking piece folding mechanism, 44a ... Actuator for lowering the mold, 45 ... Lower mold, 46 ... Upper mold, 47 ... Cylindrical 47a ... tapered surface, 47b ... flange, 47c ... arc surface, 48 ... expanded piece, 48a ... inclined surface, 49 ... inner cylinder, 49a ... flange, 49b ... notch, 49c ... hole, C ... container body Mounting part 50 ... Guide rod 51 ... Compression coil spring 52 ... Container body supply mechanism 53 ... Container body pressing mechanism 54 ... Guide rail 55 ... Conveyor 55a ... Arm 56 ... Container body supply actuator 57 ... Pressing member, 58 ... Actuator for pressing the pressing member, 60 ... Controller, CM ... Composite mold

Claims (9)

A container body having an opening at the top and a locking projection protruding outward on the outer periphery, and a locking claw that is open upward and divided into a plurality of pieces along the circumferential direction at the upper edge When the exterior body is combined with the exterior of the container body, the latching claw of the exterior body is folded back inside, and the container body is placed above the exterior body. The container body and the exterior body are locked together by engaging the locking claw with the locking protrusion,
In order to fold back the locking claw, a composite mold composed of a cylindrical first mold and a second mold inserted into the first mold is used,
A method of manufacturing a composite container, wherein the locking claw is bent inward by the first mold, and then the locking claw is folded back by the second mold.   The first and second molds are arranged coaxially and can change the relative position in the axial direction, and the first and second molds are adjusted by adjusting the timing of changing the relative position. The method for producing a composite container according to claim 1, wherein an upper edge of the extrapolated body and the locking claw are sandwiched between molds.   2. The upper side wall of the exterior body is expanded outward by an expanding means that moves together with the first mold when the locking claw is bent inward by the first mold. The folding method of the exterior body latching nail | claw of the composite container as described in any one of Claims 2-4.   4. The composite according to claim 1, wherein the container main body projects downward, and the exterior body has a substantially inverted truncated cone shape or an inverted truncated cone shape before being combined with the container body. 5. Container manufacturing method.   The said container main body is a manufacturing method of the composite container of Claim 4 currently formed with the synthetic resin. A container body having an opening at the top and a locking projection protruding outward on the outer periphery, and a locking claw that is open upward and divided into a plurality of pieces along the circumferential direction at the upper edge When the exterior body is combined with the exterior of the container body, the latching claw of the exterior body is folded back inside, and the container body is placed above the exterior body. The container main body and the exterior body are engaged with each other by engaging the locking claw with the locking protrusion,
A composite mold composed of a cylindrical first mold and a second mold to be inserted into the first mold;
By moving the first and second molds relative to the exterior body, the locking claws are bent inward by the first mold, and then the locking claws are folded by the second mold. An apparatus for manufacturing a composite container comprising a mold drive device for returning.   The first mold includes a peripheral wall inner surface formed in a tapered shape that opens outward as it goes downward, a flange formed on an upper edge of the peripheral wall inner surface and extending inward, and the peripheral wall inner surface and the flange. The apparatus for manufacturing a composite container according to claim 6, further comprising a curved surface formed at the meeting part.   And further comprising an expanding means that is provided on the second mold and expands the upper side wall of the exterior body outward when the locking claw is bent inward by the first mold. Item 8. The composite container manufacturing apparatus according to Item 7.   The expansion means is fixed to the first mold, has side ends opposed to the inner surface of the peripheral wall of the first mold at a plurality of locations, and has a lower end extending below the lower end of the peripheral wall, The manufacturing apparatus of the composite container of Claim 8 containing the expansion piece by which the inclined surface was formed toward the center in the surrounding surface.

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