JP4171395B2 - Haze folding apparatus, goby folding method using the apparatus, and laying method of goby folded band - Google Patents

Description

  The present invention relates to a goby folding apparatus, a goat folding processing method using the apparatus, and a method for laying goby folded strips.

  When an exterior panel is laid on the surface of a structure having a convexly curved surface such as an oval or dome shape (shape like a bowl), the length of the outer peripheral surface varies depending on the height position. . Therefore, if a long exterior panel in the form of a strip-shaped material is laid in the vertical direction, the width of the exterior panel varies depending on the longitudinal portion, and the side edges are curved. It will be necessary to perform goby folding. Therefore, conventionally, exterior panels that are short in length (for example, about 2 m) so that the side edges can be regarded as actually straight and the width can be regarded as practically constant are arranged one by one. It was.

  In addition, a goby folding device or a goat fastening device having a goat folding mechanism section including a roller support base and a plurality of goby folding roller pairs attached to the roller support base in an aligned state is known (for example, Patent Documents). 1 and Patent Document 2).

  In particular, in Patent Document 1, another set of mounting bases that are mounted with a pair of goby folding rollers and that can be moved on the roof by a caster are provided so that the roof plate can be fastened along a curved roof. There is described a goat fastening device in which a goby folding roller pair is mounted and connected to another mounting base that can be moved on the roof by another caster so as to be relatively rotatable.

However, the goat fastening device described in Patent Document 1 is designed to move the caster along the curved roof surface while moving the casters along the curved roof surface so as to fasten the standing gouge joint projecting substantially perpendicularly from the roof surface. As described above, there is no teaching about the gob-folding of a band-shaped material or a long plate having curved side edges.
JP 2001-220870 A JP 2001-349017 A

  The present invention has been made in view of the above-described points. The object of the present invention is to remove both side edges of a strip-like workpiece (long plate-like material) having non-linear side edges. An object of the present invention is to provide a goby folding device that can be folded, a goby folding method using the device, and a method for laying goby folded strips.

In order to achieve the above object, the goby folding apparatus of the present invention has a first roller support base having a first positioning guide portion on the entry side for defining the position of the first side edge of the belt-like workpiece, A first goby folding mechanism having a plurality of first goby folding roller pairs arranged in an aligned state from the entrance side to the exit side of the strip work material on the first roller support; and A second roller support base having a second positioning guide for defining the position of the second side edge on the entrance side, and the second roller support in a state of facing the plurality of first goby folding roller pairs A second goby folding mechanism section having a plurality of second goby folding roller pairs attached to the table in an aligned state from the entry side to the exit side of the belt-like workpiece, and a plurality of first goze folding mechanism sections A flat surface defined by the alignment direction of the first roller pair and the extending direction of the rotation center axis of the rollers of the first roller pair. The pair of first folding roller pairs is swingable about a first axis extending in a direction intersecting with the first folding roller pair, and the first folding roller pair on the workpiece side is the first folding roller pair on the outlet side. A first swing support portion for supporting the first goby folding mechanism portion in a state where the swing biasing force is exerted on the first goby folding mechanism portion so as to be closer to the center in the width direction of the workpiece. , Extending in a direction intersecting a plane defined by the alignment direction of the plurality of second roller pairs of the second goby folding mechanism and the extending direction of the rotation center axis of the rollers of the second roller pair. The center of the workpiece in the width direction is swingable around the second axis and the pair of second folding rollers of the plurality of second folding rollers is closer to the workpiece than the pair of second folding rollers supporting a second goby folding mechanism in a state that had the swing biasing force to the second goby folding mechanism so as to approach the parts A second support portion, the first and second goby folding mechanism supporting as the first oscillating support and a second support portion to be closely spaced may be closely spaced to one another, which is configured to possess a base portion, first and second goby folding mechanism of the first and second first and second side edges positioned inserted goby folding of the strip-like workpiece between the positioning guide portion After the first and second side edges of the belt-like workpiece are bitten by the rotational drive of the roller pair, the further rotational drive of the goby folding roller pair is performed by the first and second gouge folding. The mechanism portion is moved close to and away according to the variation in the width between the first and second side edges of the belt-shaped workpiece, and the plurality of first and second gond folding mechanism portions by rotating so as to be parallel to a portion of the goby bitten into folding roller pair strip workpiece, Ru is configured such goby folding progresses.
In the following description in the specification, a part that does not satisfy the condition described in this paragraph is out of the scope of the invention described in the claims in terms of words.

  In the goby folding device of the present invention, “the first goby folding roller pair of the plurality of first goup folding roller pairs is closer to the center axis of the work piece than the gond folding roller pair on the outgoing side. Thus, the first swing support portion supports the first goby folding mechanism portion in a state where the swing biasing force is exerted on the goat folding mechanism portion, and “a plurality of first goby folding roller pairs are belt-shaped. The first roller support mounted in an aligned state from the entry side to the exit side of the workpiece has a first positioning guide on the entry side that defines the position of the first side edge of the strip-like workpiece. A second roller support base on which a plurality of second goby folding roller pairs are attached in an aligned state from the entrance side to the exit side of the strip-shaped workpiece, defines the position of the second side edge of the strip-shaped workpiece. Because it has two positioning guides on the entry side, it corresponds to the width of the part of the strip-shaped workpiece that is newly introduced into the goby folding device. Te first and spacing of the second goby folding roller pair of the inlet side can be changed. Accordingly, the first and second pair of goby folding rollers can be positioned at positions corresponding to the width of the band-shaped workpiece with respect to the band-shaped workpiece whose width varies due to having the non-linear side edges. .

  Further, in the goby folding device of the present invention, “the first swing support portion includes the first gobo folding mechanism portion including the first roller support base and a plurality of first goby folding roller pairs, A first axis extending in a direction intersecting a plane defined by the alignment direction of the plurality of first roller pairs and the extending direction of the rotation center axis of the rollers of the first roller pair The pair of first folding roller pairs that can swing around the workpiece is closer to the center of the workpiece in the width direction than the pair of folding rollers on the outlet side. So that the first side edge of the belt-shaped member is curved in a non-linear manner. The pair of goby folding rollers can be aligned parallel to the tangential direction of the first side edge where the goby folding process is in progress.

  Further, in the goby folding device of the present invention, “the second goby which is attached to the second roller support base in alignment with a plurality of second goat folding roller pairs facing the first goat folding roller pair”. Since the folding mechanism part is supported by the base part so as to be able to approach and separate from the first goby folding mechanism part, the distance between the plurality of first and second goby folding roller pairs can be changed. Even if the side edge of the belt-like workpiece to be folded is non-linear and the width between the opposite side edges of the belt-like workpiece fluctuates, the first and second pair of folding rollers according to the width The interval can be changed. Here, since the alignment direction of the plurality of first goby folding roller pairs can be changed according to the tangential direction of the corresponding side edges, the first and second goby folding roller pairs have the corresponding side edge goby folding. Both sides of a strip (long plate) that can be positioned so as to be parallel to the direction of the part to be processed (the direction of tangent extension in the part) and has a curved non-linear side edge Edges can be folded simultaneously.

  As described above, in the goby folding apparatus of the present invention, the relative directions and intervals of the first and second goby folding rollers can be changed as the goat folding process proceeds, so By simply rotating the goblet folding roller pair, goblet folding can be performed on both side edges of the strip-shaped workpiece whose side edges are curved and whose width varies.

  Here, the swinging biasing force may be exerted by the elastic force by providing an elastic means such as a spring between the first swinging support part and the first goby folding mechanism part, for example. However, typically, the swing of the first goby folding mechanism is caused to occur around the rotation center axis extending substantially in the horizontal direction, and the center of gravity of the first goby folding mechanism is set to the rotation center axis. The center of gravity position is set so that, among a plurality of goby folding roller pairs, the goat folding roller pair on the workpiece side is closer to the center axis of the work piece than the outgoing goat folding roller pair Keep it. Such a kind of eccentric center-of-gravity position setting is performed by using, for example, the mass or weight of the driving motors of the plurality of first goby folding roller pairs. For example, by providing the drive motor outside the rotation center axis of the goby folding mechanism, the lower part of the goat folding mechanism is positioned inside the rotation center axis. Can be biased.

  In the goby folding apparatus of the present invention, typically, the second support portion further includes an alignment direction of the plurality of second roller pairs of the second goze folding mechanism portion and the rollers of the second roller pair. The second folding mechanism is supported so as to be swingable about a second axis extending in a direction intersecting a plane defined by the extending direction of the rotation center axis.

  In this case, even if the plate-like body is non-linear at both side edges, only the plate-like body is fed substantially in the longitudinal direction, so This can be done by the goby folding mechanism.

  In the above description, the swing is typically a rotation around the rotation center axis, and is realized by a rotation shaft attached to one member and a bearing attached to the other member. However, if desired, a swing lacking the center of rotation may be used instead of the rotation. The translation is typically realized by two or more parallel guide rods and a bearing portion fitted to the guide rods so as to translate. However, other mechanisms may be used as long as they can be substantially close to and away from each other. In some cases, rotation with a large curvature radius may be performed.

  In addition, a compressive stress inward in the width direction is applied to the band-shaped workpiece with respect to the side edge in the width direction. A corrugate that extends in the width direction on the belt-like workpiece in order to avoid the bending of the belt-like workpiece when there is a possibility that the belt-like workpiece will be bent along the bent portion extending in the longitudinal direction. Is preferably formed in advance.

Looking at the present invention in terms of Methods, goby folding processing method of the present invention, in order to achieve the above object, the side edges of the strip-shaped workpiece having a curved side edge with goby folding device as described above (Typically, both side edges) are processed by gore folding.

  In this case, goby folding of the non-linear side edges of the strip-shaped workpiece constituting a hemispherical dome shape, spherical shape, oval shape, or ellipsoidal shape structure can be easily performed.

  Further, in the method for laying the goby folded band material of the present invention, in order to achieve the above object, the goby folding apparatus as described above is arranged on the lower end side of the structure, and the gob folding process of the band shaped work material is performed by the goby folding apparatus. , The strip-shaped workpiece is sent out toward the top of the structure, and the band-shaped workpiece after the goat fold is attached to the structure.

  In this case, it becomes possible to lay the side edges (typically both side edges) of a strip-like workpiece (long plate-like material) such as a thin steel plate forming a large structure at the same time while carrying out goby folding.

  A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

  1 to 6 show a goby folding apparatus 1 according to a preferred embodiment of the present invention.

  The goby folding apparatus 1 is mounted on a floor or the ground, or placed on an arbitrary support structure and provided with a guide frame 11 and a guide means 11 of the foundation frame structure 10 in the A direction. A pair of carriages 20 and 30 supported so as to be capable of translational movement (more specifically, in directions A1 and A2), and supported by the carriages 20 and 30 so as to be rotatable around respective rotation center axes C1 and C2. And a goby folding mechanism 40, 70.

  The base frame structure portion 10 as a base portion is composed of a leg frame portion 12 that is placed on the floor, the ground or a support structure and stably supports the other part of the goby folding apparatus 1, and the leg frame portion 12. A pair of columnar frame portions 13 and 14 rising upward and a guide means 11 supported on the columnar frame portions 13 and 14 above the pair of columnar frame portions 13 and 14.

  FIG. 1B shows an example in which the columnar frames 13 and 14 stand up perpendicularly to the leg frame 12, but the columnar frame units 13 and 14 are structures such as a target tank ( In order to substantially follow the inclination of the average tangent of the envelope of the curved surface of the surface near the bottom of the structure 100) as shown by reference numerals 101 and 102 in FIGS. As shown in FIG. 14, the leg frame 12 may be inclined. In FIG. 14, a vertically rising state as shown in FIG. 1B is indicated by a broken line. More specifically, as can be seen from FIG. 3 and FIG. 14, in the goby folding device 1, the leg frame portions 13 and 14 are pivotable in the directions P <b> 1 and P <b> 2 around the connecting pivot shaft P at the lower end. 12 and fixed to the end portions 18a and 18b of the connecting / fixing piece 18 having a desired length corresponding to the inclination angle β of the support frame portions 13 and 14 with respect to the leg frame portion 12 by fixing pins Pk and Ps. The inclination angle β is changed using, for example, the connecting / fixing pieces 18 having different lengths between the receiving end portions 18a and 18b of the pins Pk and Ps. Of course, any other means may be used to define and change the angle β. In FIG. 14, the lower end of the support frame 13 is shown as if it protrudes downward from the lower surface of the leg frame 12. The structure will not hinder stable support. Further, the angle β of the support frame portions 13 and 14 with respect to the leg frame portion 12 may be fixed (fixed) or may be formed integrally instead of being variable (adjustable).

  The base frame structure 10 may have any shape and structure as long as other parts can be stably supported. For example, an arbitrary structure such as a tripod structure may be used so that the foundation frame structure 10 can be stably disposed on uneven ground. In the illustrated example, the guide means 11 is composed of two mutually parallel guide rods 15 and 16 fixed and supported by the columnar frame portions 13 and 14 at both ends. The guide bars 15 and 16 are typically round bars, but may be bars having a non-circular cross section such as square bars. The guide means 11 may be composed of three or more mutually parallel guide rods or a single rod having a non-circular cross section. As long as the guide means 11 can move the carriages 20 and 30 in the A direction, other means such as rails may be used instead of the guide rods. In addition, the guide means 11 typically extends substantially horizontally and linearly, but if desired, the carriage 20, 30 can be moved by its own weight by the carriage 20, 30 and the goby folding mechanism sections 40, 70. As indicated by imaginary lines 15 and 15 in FIG. 1, the carriages 20 and 30 are inclined so as to be positioned closer to the center in the A direction so that a biasing force in a direction approaching each other can be applied to the carriages 20 and 30. It may be.

  Although the carriage 20 will be described in detail below with respect to the carriage as the swing support portion, the carriages 20 and 30 and the goby folding mechanism units 40 and 70 (provided that the goby folding shape is mirror-symmetrical) are mirror images of each other. Since it has a symmetric structure, the detailed description of the relationship between the carriage 20 and the carriage 20 and the corresponding goby folding mechanism 40 is substantially the same as the carriage 30 and the carriage 30 and the goat folding mechanism corresponding thereto. The relationship with the unit 70 also applies.

  As shown in FIG. 4, the carriage 20 is fitted into a block-shaped carriage body 21 having guide shaft receiving holes 22 and 23 and a rotation shaft receiving hole 24, and the guide shaft receiving holes 22 and 23 of the carriage body 21. It has translational sliding bearing linings 25 and 26 that are attached, and rotational bearings 27 and 28 that are mounted in diameter-enlarged recesses 24 a and 24 b at both ends of the rotational shaft receiving hole 24.

  The carriage 20 is slidably fitted to the guide rods 15 and 16 at the bearing linings 25 and 26, and is supported by the frame structure 10 so as to be slidable in the A direction with respect to the basic frame structure 10.

  A pin or bolt 29 serving as a rotation shaft is fitted in the rotation shaft receiving hole 24 so as to be slidably rotatable at a central shaft portion 29b. The pin or bolt 29 is a tip portion 29a in the form of a male screw. Is screwed and fixed to the fixing plate 48 of the support frame 45 of the goby folding mechanism 40 (FIG. 3). Accordingly, the goby folding mechanism 40 is rotatable in the D direction (more specifically, in the directions D1 and D2) around the central axis C1 with respect to the carriage 20.

  Similarly, as can be seen from FIG. 3, the carriage 30 is slidably fitted to the guide rods 15 and 16 and supported by the frame structure 10 so as to be slidable in the A direction with respect to the basic frame structure 10. Has been. Further, a pin or bolt 39 serving as a rotation shaft is fitted to the bearing portion 37 of the rotation shaft receiving hole 34 so as to be slidably rotatable at the central shaft portion 39b. The pin or bolt 39 is in the form of a male screw. At the leading end 39a, the goby folding mechanism 70 is screwed and fixed to a fixing plate 78 on the upper portion of the support frame 75 of the goby folding mechanism 70. Specifically, it is rotatable in the directions E1 and E2.

  As long as the carriages 20 and 30 as swing support portions can move in the A direction with respect to the base frame structure portion 10 and can support the corresponding goby folding mechanism portions 40 and 70 so as to be rotatable in the D and E directions, Any other structure may be used.

  Regarding the goby folding mechanism section, the goat folding mechanism section 40 will be described in detail below. However, the goat folding mechanism sections 40 and 70 (when the goby folding shape is mirror-symmetric) have a mirror-symmetric structure. The description regarding the details of the goby folding mechanism 40 applies to the goby folding mechanism 70 as it is.

  The goby folding mechanism 40 includes a support frame 45 including a back side and front side support plates 41 and 42 and a plate connecting part 43 that connects the plates 41 and 42, and a group of power transmissions rotatably mounted on the back side support plate 41. It has a gear mechanism 50 and a goby folding roller mechanism 60 mounted on the output shaft portions 51 and 52 of the power transmission gear mechanism 50 on the front surface 46 of the front support portion rate 42. The plate connecting portion 43 connects the plates 41 and 42 on one side of the front side and the back side plates 41 and 42 and the plate 41 and 42 on the other side of the front side and the back side plates 41 and 42. And a fixing plate 48. The goby folding mechanism 40 further includes a drive motor 49 mounted on the back side (outside) of the back side (outside) support plate 41 in the vicinity of the upper end portion as seen in FIG. A drive side gear 53 of the power transmission gear mechanism 50 is mounted. Since the drive motor 49 is located outside the center axis C1 of the rotation (position shifted in the A2 direction), the support frame is considered even if the arrangement and weight of the power transmission gear mechanism 50 and the goby folding roller mechanism 60 are taken into consideration. 45 is rotated in the direction D1 around the central axis C1 due to the arrangement of the drive motor 49 and its own weight, and as shown in FIG. In the state inclined only, the goby folding mechanism 40 is stabilized. In FIG. 1, FIG. 3, and the like, the goby folding mechanism 40 is shown with the plate connecting part 43 and the power transmission gear mechanism 50 omitted for convenience of explanation.

  In this example, the drive motor 49 is mainly arranged and weighted so that the support frame 45 is inclined in the direction D1 by an angle α. However, for example, an elastic means such as a spring is used. Thus, a biasing force toward the inclined state may be applied to the support frame 45.

  An example of the power transmission gear mechanism 50 is shown in FIG. In the example shown in this figure, the power transmission gear mechanism 50 includes six pairs of drive gears 54a, 54b, 54c, 54d, 54e, and 54f (represented by reference numeral 54 when not distinguished from each other or generically). Intermediate gears 55a, 55b, 55c, 55d, and 55e that connect the drive gear pairs 54a, 54b, 54c, 54d, 54e, and 54f (represented by reference numeral 55 when not distinguished from each other or generically). The drive gear pair 54a includes a pair of gears 54a1 and 54a2 meshed with each other, and output shafts 51a and 52a extend from the respective gears 54a1 and 54a2. Similarly, the drive gear pair 54b includes a pair of gears 54b1 and 54b2 that mesh with each other and include output shafts 51b and 52b. The drive gear pair 54c meshes with each other and includes a pair of gears 54c1 that include output shafts 51c and 52c. , 54c2 and the drive gear pair 54d is a pair of gears 54d1 and 54d2 which are meshed with each other and provided with output shafts 51d and 52d. The drive gear pair 54e is a pair of gears which are meshed with each other and provided with output shafts 51e and 52e. The drive gear pair 54f is composed of a pair of gears 54f1 and 54f2 that mesh with each other and are provided with output shafts 51f and 52f.

  Therefore, when the motor 49 is driven to rotate, the drive side gear 53 is rotated in the direction F1, the rotation is transmitted to the gear 54f1 of the drive gear pair 54f, and the rotation of the gear 54f1 is transmitted to the gear 54f2 on the one hand. On the other hand, it is transmitted to the intermediate gear 55e. The rotation of the intermediate gear 55e is transmitted to the gear 54e1 of the drive gear pair 54e, and the rotation of the gear 54e1 is transmitted to the gear 54e2 and the intermediate gear 55d. Similarly, the rotation of the intermediate gear 55d is transmitted to the gear 54d1 of the drive gear pair 54d, and the rotation of the gear 54d1 is transmitted to the gear 54d2 and the intermediate gear 55c. The rotation of the intermediate gear 55c is transmitted to the gear 54c1 of the drive gear pair 54c, and the rotation of the gear 54c1 is transmitted to the gear 54c2 and the intermediate gear 55b. Further, the rotation of the intermediate gear 55b is transmitted to the gear 54b1 of the drive gear pair 54b, and the rotation of the gear 54b1 is transmitted to the gear 54b2 and the intermediate gear 55a. Further, the rotation of the intermediate gear 55a is transmitted to the gear 54a1 of the drive gear pair 54a, and the rotation of the gear 54a1 is transmitted to the gear 54a2. As a result, the left gear group 54a1, 54b1, 54c1, 54d1, 54e1, 54f1 and its rotation shafts 51a, 51b, 51c, 51d, 51e, 51f in FIG. 6 are rotated in the F2 direction, and the right gear group in FIG. 54a2, 54b2, 54c2, 54d2, 54e2, 54f2 and its rotation shafts 52a, 52b, 52c, 52d, 52e, 52f are rotated in the F1 direction. More specifically, in this example, the rotation shafts 51a, 51b, 51c, 51d, 51e, 51f, 52a, 52b, 52c, 52d, 52e, 52f are rotatably supported by the plates 41, 42 of the support frame 45, and Drive gear pairs 54a, 54b, 54c, 54d, 54e, 54f are mounted on the rotary shafts 52a, 52b, 52c, 52d, 52e, 52f. Note that the respective rotation shafts (not shown) to which the intermediate gears 55a, 55b, 55c, 55d, and 55e are integrally attached are also rotatably supported by the support frame 45. As long as the rotation shafts 51a, 51b, 51c, 51d, 51e, 51f can be rotated in the F2 direction and the rotation shafts 52a, 52b, 52c, 52d, 52e, 52f can be rotated in the F1 direction according to the rotation of the motor 49, The structure of the power transmission mechanism 50 may be different.

  On the inner surface of the support plate 42 on the front side (inner side), the belt-like folding roller mechanism 60 and the belt-like workpiece U (for example, a large plate 120 described later) are introduced into the sandpaper folding roller mechanism 60 in the G1 direction. A fixed ruler 56 is provided as a positioning guide for positioning the position of the side edge U1 of the workpiece U in the A direction and guiding the introduction in the G1 direction.

  The fixed ruler 56 includes a bottom plate portion 57 fixed to the surface of the support plate 42, a guide plate portion 58 rising at right angles from the bottom plate portion 57, and a passage V <b> 1 of the strip-shaped workpiece U between the guide plate portion 58. And an auxiliary guide plate portion 59 that defines the above. The bottom plate portion 57 has a surface 57a that can position the side edge U1 of the band-shaped workpiece U at a predetermined position with respect to the first-stage goby folding roller pair 63a of the goby folding roller mechanism 60 described below. It has a thickness corresponding to the structure or shape of the goby folding roller pair 63a. Further, the bottom plate portion 57 is a tapered inclined leading edge that enters the recess between the rollers 61a and 62a of the pair of goby folding rollers 63a so that the belt-like workpiece U can be positioned immediately before being introduced into the goby folding roller pair 63a. It has a portion 57b. Note that the belt-shaped workpiece U is typically corrugated (bent zigzag) along a folding line Uf extending along the width direction so that it is difficult to bend in the width direction (A direction). The guide passage or guide groove V1 has a width that allows passage of the belt-like workpiece U in a corrugated state (with a slight relaxation of the corrugated state if necessary). The passage V1 typically has a constant cross-section, but is divergent toward the inlet side so that the width or position in the A direction or both are large on the inlet side for ease of introduction. Also good.

  The goblet folding roller mechanism 60 includes a first-stage goby folding roller pair 63a composed of goby folding rollers 61a and 62a attached to the output shafts 51a and 52a, and goby foldings each attached to the output shafts 51b and 52b. A second-stage goby folding roller pair 63b composed of rollers 61b and 62b, and a third-stage gond folding roller pair 63c each composed of goby folding rollers 61c and 62c attached to output shafts 51c and 52c, respectively, are output. A fifth-stage goby folding roller pair 63d composed of goby folding rollers 61d, 62d attached to the shafts 51d, 52d, and a fifth-stage goup folding roller 61e, 62e each attached to the output shafts 51e, 52e. There are a pair of goby folding rollers 63e, and a sixth stage goby folding roller pair 63f consisting of goby folding rollers 61f, 62f attached to the output shafts 51f, 52f, respectively.

  The goby folding mechanism section 40 engages the side edge U3 of the workpiece member that enters the roller mechanism 60 of the mechanism section 40 in the G1 direction, and includes first to sixth hibe folding roller pairs 63a to 63f (generic name). When this is done, the side edges of the member to be processed are sequentially folded. Here, the side edge portion U3 refers to a portion including not only the side edge U1 coinciding with the end edge in the width direction Jw but also the vicinity of the side edge U1.

  The pair of goby folding rollers at each stage has a unique shape related to positioning irregularities (grooves or ridges) in the width direction Jw, in addition to a shape suitable for additional bending unique to each stage. As long as positioning in the width direction Jw can be performed, other means may be used in place of the unevenness (groove or protrusion). That is, as will be described in detail with reference to FIG. 9 and FIG. 10, the rollers 61a and 62a of the first-stage goby folding roller pair 63a include a narrow annular convex portion 61a3 and a complementary annular concave portion, respectively. Concavities and convexities (grooves or ridges) N4a are formed in the vicinity of the side edge of the large plate 120 as the strip-shaped workpiece U, which is 62a3 and located on the inner side in the width direction by a certain length from the side edge. On the other hand, the rollers 61b and 62b of the second-stage goby folding roller pair 63b have a narrow annular protrusion 61b5 and a complementary annular recess 62b5, respectively, and are formed on the large plate 120 as the strip-shaped workpiece U. The strip-shaped workpiece U to be subjected to the second-stage gouge folding process by the second-stage gouge-folding roller pair 63b when the irregularities (grooves or ridges) N4a just fit into the convex portions 61b5 and the concave portions 62b5. The large plate 120 can be accurately positioned with respect to the second-stage goby folding roller pair 63b in the width direction Jw. Similarly, the rollers 61c and 62c of the third-stage goby folding roller pair 63c also have a narrow annular convex portion 61c4 and a complementary annular concave portion 62c4, respectively, on the large plate 120 as the strip-shaped workpiece U. The band-like workpiece to be subjected to the third-stage gouge folding process by the third-stage gouge folding roller pair 63c when the formed irregularities (grooves or ridges) N4a just fit into the convex portions 61c4 and the concave portions 62c4. The large plate 120 as U is accurately positioned with respect to the third-stage goby folding roller pair 63c with respect to the width direction Jw, and the rollers 61d and 62d of the fourth-stage gogging folding roller pair 63d are also narrow annular rings, respectively. Concavities and convexities (grooves or ridges) N4a formed on the large plate 120 as the strip-shaped workpiece U having the convex portion 61d5 and the complementary annular concave portion 62d5 are formed in the convex portion 61d5 and the concave portion 62d5. The large plate 120 as the strip-shaped workpiece U to be subjected to the fourth stage goby folding process by the fourth stage goat folding roller pair 63d by fitting into the fourth stage goat folding roller pair 63d in the width direction Jw. The rollers 61e and 62e of the fifth-stage goby folding roller pair 63e are positioned accurately with respect to each other, and each has a narrow annular protrusion 61e6 and a complementary annular recess 62e6. The fifth-stage goby folding process should be performed by the fifth-stage goby folding roller pair 63e when the irregularities (grooves or ridges) N4a formed on the large plate 120 are just fitted into the convex parts 61e6 and the concave parts 62e6. The large plate 120 as the band-shaped workpiece U is accurately positioned with respect to the fifth-stage goby folding roller pair 63e in the width direction Jw, and the roller 61 of the sixth-stage gogging folding roller pair 63f. And 62f also have an annular convex portion 61f5 having a narrow width and an annular concave portion 62f5 having a complementary shape, and an unevenness (groove or ridge) N4a formed on the large plate 120 as the strip-shaped workpiece U is the convex portion. The large plate 120 as the band-shaped workpiece U to be subjected to the sixth stage gond folding process by the sixth stage goby folding roller pair 63f by just fitting into 61f5 and the recess 62f5 is the sixth stage with respect to the width direction Jw. Even if the width of the large plate 120 as the band-shaped workpiece U is accurately positioned with respect to the pair of goby folding rollers 63f, the correct goby folding can be performed regardless of the width.

  The goby folding mechanism 70 is configured in the same manner as the goat folding mechanism 40 except that it has a mirror-symmetrical shape with the goby folding mechanism 40. Therefore, each part of the goby folding mechanism part 70 is typically represented by a number obtained by adding “30” to the code of the corresponding part of the goby folding mechanism part 40.

  Next, an example of performing the goby folding process of the strip-like workpiece or the long plate U having the gently curved side edges using the goby folding apparatus 1 configured as described above will be described in detail.

  The long plate U to be subjected to the goby folding process is, for example, a large large structure 101 such as a sphere, a spheroid, or an egg shaped like the fluid storage tank shown in FIG. As shown in c), it is used as an exterior material or the like of a structure 100 having a curved surface such as a large dome-shaped structure 102 with a bowl lying down.

  When exterior decoration is performed, for example, a thin steel plate as shown in FIG. 8D with an interval in the width direction Jw corresponding to the circumferential direction J of the curved surface structure 100 such as the tank 101 or the dome 102. The hanging pedestal 110 made of metal is fixed to the egg-shaped or partially spherical wall surface with anchor bolts 117 or the like, and then the mounting wall portions 111 that are lifted of the two hanging pedestals 110 adjacent in the circumferential direction J or the width direction Jw, 112, the mounting plate-like portions 129 and 128 of the large plate 120 made of a wide and long thin steel plate that has been folded at both side edges 122 and 121 are attached by fixing means 118 such as a tex screw or a bolt. . In FIG. 8 (d), for the sake of clarity, it is shown as if there is a gap between the large plate 120 and the wall portions 111 and 112 of the suspension base 110. By 118, the large plate 120 and the wall portions 111 and 112 of the hanging pedestal 110 are actually brought into close contact with each other. 8D, only one of the hanging pedestals 110, 110,... Adjacent in the width direction is shown, and the wall portions 111, 112 of the hanging pedestal 110 have a width direction. The state to which the adjacent side edge parts 122 and 121 of the two goby folding large boards 120 and 120 adjacent to Jw were attached is shown. A decorative plate 150 made of a thin steel plate that is complementarily folded at both side edge portions 151 and 152 is formed on the adjacent side edge portions 122 and 121 of the large plates 120 and 120 adjacent to each other in the width direction. Engagement is performed for exterior cosmetics. As a result, for example, when a part of the structure 100 in the form of the dome 102 shown in FIG. 7C is enlarged, an exterior as shown in FIG. 7E is applied. Obviously, the hanging pedestal 110 is not visible from the outside in the state of being covered in this way.

  More specifically, the pedestal 110 is formed of, for example, a long plate having a constant width and folding lines M1a, M1b, M2a, M2b, M3a, M3b, M4a, M4b extending in the longitudinal direction as shown in FIG. Is bent into a substantially M shape along the bottom edge 113a, 110b and the bottom portions 113, 114 between the adjacent bent portions M1a, M1b, and is abutted and fixed on the curved surface of the structure 100. The groove bottom wall 115 between the bent portions M4a and M4b is fixed by an anchor bolt 117 protruding from the curved surface of the structure 100.

  When the large plate 120 is unfolded, the side edges 120a and 120b are smoothly curved and the width W gradually changes as shown in FIGS. 7B and 7C, for example. As shown in FIG. 8B, the side edges 121 and 122 including the side edges 120a and 120b are bent portions N1a, N1b, N2a, N2b, N3a, N3b, N4a, and N4b. Similarly, the bottom surface 123 between the bent portions N3a and N3b also has a smoothly curved shape so that the width gradually changes in the state of being bent and being folded. Thus, when the large board 120 is laid and constructed on the curved surface of the structure 100 such as the structures 101 and 102, the large board 120 covers the curved surface without overlapping each other, and the decorative board 150 covers the side edges of the goby folding. Or it is engaged by the side edge goby folds 121h and 122h, and the exterior makeup can be performed in cooperation with the decorative board 150. However, of the above-described bent portions, the bent portions N4a and N4b are not the engaging folding portions but the positioning concave-convex portions for forming the folding portions as described above. However, the protrusions N4a and N4b can serve as a locking part for screws and bolts 118 and a screwed portion when they are attached with screws and bolts 118 as shown in FIG. 8D. 7A and 7C, the curved bus bar represents the decorative board 150, and the area between the bus bars 150 and 150 represents the exposed area of each large board 120. In the state of being folded, the large plate 120 folds the short locking plate-like portions 124 and 125 that are skewed between the width direction edges 120a and 120b and the adjacent bent portions N1a and N1b. Between the bent portions N1a, N1b and the adjacent bent portions N2a, N2b substantially perpendicular to each other, long engagement guide plate portions 126, 127 are connected to the bent portions N2a, N2b, and the adjacent bent portions N3a, approximately 180 degrees. The front mounting plate-like portions 128 and 129 are disposed between the N3b and the rear mounting plate-like portions 131 and 132 are disposed between the bent portions N3a and N3b and the adjacent positioning uneven portions N4a and N4b. A central plate-like portion 130 is provided between the portions N4a and N4b. Here, the edge portion 121 includes plate-like portions 124, 126, 128, and 131, the edge portion 122 includes plate-like portions 125, 127, 129, and 132, and the bottom surface portion 123 includes a central plate-like portion. 130 and plate-like parts 131 and 132 are included. Of course, the goby folded shape may be other desired shape instead of the illustrated one, but in this specification, the goat folded shape as shown in the drawing will be described in more detail.

  Although the size and shape of the large plate 120 may vary depending on the size and shape of the target structure 100, for example, when the length is about 20 m, the width W is 20 cm at both ends in the longitudinal direction, and the maximum portion at the center in the longitudinal direction. Is about 80 cm. However, the minimum width may be smaller or larger, the maximum width may be larger or smaller, and the variation in width may be larger or smaller. In the case of a plate having a length and a width as illustrated and having a thickness of about 0.3 mm to 0.6 mm, the compression direction applied to both side edges 120a and 120b of the large plate 120 during the goby folding process In order to support the positioning force without bending, the corrugation is typically performed along the folding line 120f extending in a broken line in FIG. Processed (lightly zigzag folded).

  The decorative board 150 typically has a constant width and is engaged with the adjacent folded edge portions 122h and 121h of the adjacent large plates 120 and 120 at the folded edge portions 151 and 152 at both ends. In this example, as shown in FIG. 8A, the decorative board 150 has both side edges 151, 152 at bent portions Q1a, Q1b, Q2a, Q2b, Q3a, Q3b, Q4a, Q4b, Q5a, Q5b. It is bent. In the state where the goby folding process is performed, the top surface part 153 between the bent parts Q4a and Q4b has a certain width and is adjacent to the adjacent goby folded end parts 122h and 121h of the adjacent large plates 120 and 120 positioned at a certain interval. It is engaged with the goby folding parts 151 and 152 having complementary shapes on both side edges, so that the exterior makeup can be performed in cooperation with the large plate 120. In the state of being folded, the decorative plate 150 includes short locking plate-like portions 154 and 155 that are inclined between the width direction edges 150a and 150b and the adjacent bent portions Q1a and Q1b. Between the bent portions Q1a and Q1b and the bent portions Q2a and Q2b having a large radius of curvature adjacent to the bent portions Q1a and Q1b, the medium-length plate-like portions 156 and 157 are connected to the bent portions Q2a and Q2b and the poles adjacent thereto. Between the bent portions Q3a and Q3b and the substantially perpendicular bent portions Q4a and Q4b adjacent to the bent portions Q3a and Q3b, between the bent portions Q3a and Q3b of 180 degrees having a small radius of curvature. The plate-like portions 161 and 162 that have risen greatly between them and the center plate-like portion 153 between the bent portions Q4a and Q4b. Here, the edge portion 151 includes plate-like portions 154, 156, 158, and 161, the edge portion 152 includes plate-like portions 155, 157, 159, and 162, and the central plate-like portion 153 is bent. It consists of a top surface portion 153 including portions Q5a and Q5b.

At the time of assembly, the goby folded edge portions 121 h and 122 h of the large plate 120 are fitted into the goby folded edge portions 152 and 151 of the complementary shape of the decorative plate 150. That is, for example, between the protruding lower end 158a of the long plate-shaped portion 158 of the goby folded end portion 151 of the decorative plate 150 and the skewed plate-shaped portion 154, the bent portion of the gond folded end edge portion 122h of the large plate 120 The protruding lower end 158a of the long plate-like portion 158 is pushed down along the plate-like portion 127 of the large plate 120 so that N1b is fitted. As a result, the bent portion N1b and the skew plate-like portion 125 of the goby folding edge portion 122h of the large plate 120 are replaced with the plate-like portion 158 and the skew plate-like portion 154 of the gouge folding edge portion 151 of the decorative plate 150. And is fitted into the gap Qs1 between the plate-like portions 158 and 156 ((d) in FIG. 8). Once the short plate-like portion 125 at the edge 120b of the gore folded end portion 122h of the large plate 120 is once fitted in the gap Qs1, the edge 120b of the plate-like portion 125 is bent of the edge portion 151 of the decorative plate 150. Since it hits the portion Q1a from the inside, there is practically no possibility that the plate-like portion 125 will come off from the gap Qs1. Similarly, the goby folding edge 121h of the large plate 120 is fitted into the complementary goby folding end edge 152 of the decorative plate 150, and the decorative plate 150 is inserted into the large folding plate edge 151, 152 at the large plate 120. , 120 can be fitted to the adjacent edge portions 122, 121 so as not to be detached. This engagement can be achieved by simply aligning the corresponding edge portions 152 and 151 of the decorative sheet 150 that has been folded into the folded edge portions 121h and 122h of the large plate 120 and simply depressing the decorative board 150. Can be done.

  Of course, the goby folded shape may be other desired shape instead of the illustrated one, but in this specification, the goat folded shape as shown in the drawing will be described in more detail.

  The large plate 120 to be subjected to goby folding is prepared in advance, for example, in the form of a roll 120P that is corrugated and wound in a coil shape along the widthwise extending folding curve as described above. As can be seen from FIG. 1 and the like, the roll 120P is placed on, for example, a pair of rotatable parallel rollers 19 and 19 on the entrance side (downward) of the goby folding mechanisms 40 and 70, for example. Accordingly, when the large plate 120 is pulled out from the front edge 120c in the G1 direction or the L1 direction, the large plate roll 120P freely rotates on the roller pair 19, 19. Any other means may be used for supporting the large plate 120 as long as it can be reliably introduced into the goby folding mechanisms 40 and 70.

  When the large plate 120 is folded, the outlet side opposing pair of folding rollers 63f, 93f and 63e, 63e located near the rotation center axes C1, C2 of the pair of folding mechanisms 40, 70 are large plates. A1, A2 so as to be able to perform the cross-folding of the minimum width portion of the large plate 120 so as to be equal to or smaller than the minimum width of 120 (however, the reduction of the effective width with the progress of the cross-folding process is considered). Keep close to the direction. For example, in the case of the large plate 120 for the dome-shaped structure 102 (FIG. 7 (c)), the front edge 120c has the minimum width, and therefore the distance is equal to or less than the distance at which the front edge 120c can be folded. In this way, the opposing goby folding roller pairs 63f, 93f and 63e, 63e on the exit side in the vicinity of the rotation center axes C1, C2 are positioned in advance. However, for example, as indicated by imaginary lines 15 and 16 in FIG. 1, the guide rods 15 and 16 are inclined, and the goby folding roller pairs 63 and 93 of the goat folding mechanisms 40 and 70 are not in contact with each other. When there is a biasing force to bring the folding mechanisms 40 and 70 close to each other, or as shown in FIG. 13, an elastic means such as a tension spring H is provided on the rotating shafts 29 and 39 or in the vicinity thereof. When there is a biasing force to bring the goby folding mechanisms 40, 70 close to each other within a range where the goby folding roller pairs 63, 93 of the folding mechanisms 40, 70 are not in contact with each other, the position of the goby folding mechanisms 40, 70 Adjustment is not necessary.

  In the state where the goby folding mechanisms 40, 70 are at desired positions in the A direction, the side edges 121, 122 of the large plate 120 are moved from the front edge 120c side to the rulers or positioning guides 56, 86 of the goby folding mechanisms 40, 70. Are inserted into the guide passages or guide grooves V1, V2. The goby folding mechanisms 40 and 70 are rotatable in the D and E directions around the rotation axes C1 and C2 in the vicinity of their upper ends, and receive a biasing force in the D1 and E1 directions up to an angle α by the respective motors 49 and 79. Therefore, the portions of the bottom plates 57 and 87 at the bottoms of the grooves V1 and V2 of the positioning guide portions 56 and 86 are pressed against the side edges 120a and 120b of the large plate 120, and the gore folding mechanism is applied to the side edges 120a and 120b. Positioning 40 and 70 is completed. In addition, when the goby folding of both edges 121 and 122 is performed with the same shape and size except that they are mirrors of each other, when the large plate 120 is viewed in the A direction, What is necessary is just to arrange | position so that it may be located in the middle. A mark or the like is attached to the center position in the A direction of the base frame structure 10 so that the intermediate position in the width direction of the front edge 120c of the large plate 120 is aligned with the mark. A positioning assist mechanism may be provided for positioning the goby folding mechanisms 40, 70 so that the goby folding mechanisms 40, 70 are equally spaced with respect to the center position in the A direction. For example, this positioning assist mechanism has a parallelogram link mechanism having the same length on all four sides, with two vertices at diagonal positions attached to the rotation shafts 29 and 39 or their extensions, respectively, and the remaining two diagonal positions. The apex may be configured to be moved so as to be able to approach and separate along a guide extending along the center position in the A direction of the basic frame structure 10.

  In any case, the gore folding process of the large plate 120 is performed, for example, between the positioning guide portions 56 and 86 of the pair of goby folding mechanisms 40 and 70 of the goat folding device 1 shown in FIGS. The side edge portions 121 and 122 on the front edge side of the large plate 120 are inserted, and both side edge portions 121 and 122 of the large plate 120 are the first-stage goby folding rollers of the goby folding mechanisms 60 and 80 of the goby folding mechanisms 40 and 70. The drive motors 49 and 79 of the goby folding mechanisms 40 and 70 are rotationally driven so as to be bitten by the pairs 63a and 63a, and the goblet folding roller mechanisms 60 and 80 are respectively paired via the power transmission gear mechanisms 50 and 80. This is done by rotating the goby folding roller 63.

  The goby folding mechanisms 40, 70 are initially positioned so that the distance in the A direction between the mechanisms 40, 70 matches the width of the front edge 120c of the large plate 120, and once the end 120c is engaged. Is typically performed, free translation in the A direction (variation in the A direction interval) and free swinging in the D and E directions with a rotational biasing force applied in the D1 and E1 directions. Or rotation is allowed. That is, in the case of the large plate 120 shown in FIG. 7D, since the large plate 120 gradually increases in width from the front end portion 120c, the goby folding mechanism 40, 70 has a substantial longitudinal direction. In addition, D2 and E2 are parallel to the direction substantially coincident with the tangential direction of the side edges 120a and 120b of the large plate portions engaged with the roller mechanisms 60 and 80 of the goby folding mechanisms 40 and 70, respectively. Rotated in the direction. As the approach in the L1 direction of the large plate 120 that coincides with the G1 direction progresses and the biting portion of the large plate 120 shifts in the L2 direction, the tangential direction of the side edges 121a and 122a gradually becomes the G1 direction (L1 Direction), the rotation angle gradually decreases and gradually swings in the directions D1 and E1. In addition, since the length (namely, width | variety) between the edge 120a, 120b of the big board 120 becomes large as the biting part of the big board 120 shifts to the L2 direction, the goby folding mechanism 40, 70 is The distance between the guide shafts 15 and 16 is increased in the directions A2 and A1, respectively.

  That is, in the goby folding device 1, goze folding mechanisms 40, 70 each having goze folding roller mechanisms 60, 80 comprising a row of goby folding roller pairs 63 on the opposite surface are arranged around the rotation center axes C1, C2. A long plate-like member such as a large plate 120 having curved side edges 120a and 120b because it can be rotated in the E direction and can be approached and separated in the A1 and A2 directions along the guide shafts 15 and 16. Is moved into the L1 direction along the longitudinal direction thereof with respect to the goby folding mechanisms 40, 70 and the roller pair 63 of the goat folding mechanisms 40, 70 is only rotationally driven so that the belt-like workpiece or the long plate-like member 120 is sent in the L1 direction, and the side folding portions 121 and 122 of the strip-shaped workpiece 120 can be folded along the curved shapes of the side edge portions 120a and 120b.

  Next, the gore folding process of the large plate 120 will be described in more detail with reference to FIGS. 9 to 10 in addition to FIGS. 1, 2, and 7.

  In FIG. 9A, the goby folding process is performed by the first-stage goat folding roller pair 63a of the goat folding roller mechanism 60 of the goat folding mechanism 40. FIG. The two folding rollers 61a and 62a of the pair of folding rollers 63a are actually close to each other, but are shown in a separated state in this figure for the sake of easy viewing. In this first stage, the goby folding roller 61a has a large-diameter cylindrical surface 61a0, a small inwardly truncated conical surface 61a1, a long cylindrical surface 61a2, and a thin semicircle with a width for forming the widthwise positioning irregularities. A convex surface 61a3 and a short cylindrical surface 61a4 similar to the cylindrical surface 61a2, and the other folding roller 62a of the roller pair 63a is substantially complementary to the surfaces 61a0, 61a1, 61a2, 61a3, 61a4. It has shaped surfaces 62a0, 62a1, 62a2, 62a3, 62a4. Therefore, the position of the side edge 121a in the width direction is positioned by the positioning guide 56 and the side edge 121 sandwiched between the rollers 61a and 62a of the roller pair 63a is L1 between the rollers 61a and 62a of the roller pair 63a. As shown in FIG. 9A, a fourth bent portion N4a that functions as a widthwise positioning concavo-convex portion is formed in the second and subsequent stages while passing in the direction. In the first-stage machining state S1 in which the first-stage bending of the curved portion N1a is performed, the first-stage roller pair 63a is exited.

  It should be noted that the first-stage goby folding roller pair 93a of the goat-folding roller mechanism 90 of the goat-folding mechanism 70 is also the first-stage goby-folding roller pair 60 of the goat-folding roller mechanism 60 of the goat folding mechanism 40. The same folding process as that performed by 63a is performed, and the folding process of the other side edge 122 of the large plate 120 can be performed in the same manner.

  FIG. 9B shows the goby folding process by the gond folding roller pair 63b of the second stage of the goby folding roller mechanism 60. FIG. It is to be noted that the two folding rollers 61b and 62b of the pair of folding rollers 63b are actually close to each other in the same manner as in FIG. 9A. In the second stage, the goby folding roller 61b includes a large-diameter cylindrical surface 61b0, an annular end surface 61b1, a small-diameter cylindrical surface 61b2, an outward frustoconical surface 61b3, and a large-diameter cylindrical surface 61b4. A thin semicircular convex surface 61b5 that is just fitted into the positioning uneven portion N4a formed by the first-stage goby folding roller pair 63a and regulates the position in the width direction of the large plate 120 during the goby folding process, and a cylindrical shape A short cylindrical surface 61b6 similar to the surface 61b4, and the other goby folding roller 62b of the roller pair 63b is a surface substantially complementary to the surfaces 61b0, 61b1, 61b2, 61b3, 61b4, 61b5, 61b6 62b0, 62b1, 62b2, 62b3, 62b4, 62b5, 62b6. Therefore, the first stage processed state portion S1 of the side edge portion 121 sandwiched between the rollers 61b and 62b of the roller pair 63b has a narrow semicircular convex surface and concave surfaces 61b5 and 62b5 and the width of the positioning bent portion N4a. While passing in the L1 direction between the rollers 61b and 62b of the roller pair 63b with the directional position positioned, the second and third bent portions are deformed as shown in FIG. 9B. In the second stage machining state S2 in which the first stage bending of N2a and N3a is performed and the second stage bending of the first folding part N1a is performed, the second stage roller pair 63b is exited. The same applies to the other side edge portion 122.

  When the second stage goby folding process is performed on the first stage processed state portion S1 by the second stage gouge folding roller pair 63b, the first stage gouge folding is newly performed on the large plate 120. For the side edge portions 121 and 122 entering the roller pair 63a, the first stage goby folding is simultaneously performed in a state where the position of the side edges 121a and 122a in the width direction is positioned by the positioning guide portions 56 and 86. This is the same as described above. Therefore, at this stage, the inclination state of the support frames 45 and 75 is determined so that the longitudinal direction of the large plate 120 is substantially parallel to the tangential direction of the side edges 121a and 122a. The More specifically, the length of the plurality of goblet folding roller pairs 63a to 63f and 93a to 93f in the G1 direction is much shorter than the length of the large plate 120. The side edges 121a and 122a can be regarded as substantially straight lines within the range of the length in the G1 direction of the plurality of paired goby folding rollers 63a to 63f and 93a to 93f.

  (C) of FIG. 9 shows the goby folding process by the gouge folding roller pair 63c in the third stage of the goby folding roller mechanism 60. FIG. The fact that the peripheral surfaces of the two goby folding rollers 61c and 62c of the goat folding roller pair 63c are actually close to each other is the same as in FIGS. 9A and 9B. In the third stage, the goby folding roller 61c includes a small-diameter cylindrical surface 61c0, an inwardly-conical truncated cone-shaped surface 61c1, an outward-facing truncated cone-shaped surface 61c2, a large-diameter cylindrical surface 61c3, and a positioning uneven portion N4a. A narrow semicircular convex surface 61c4 that restricts the position in the width direction of the large plate 120 that is just being fitted into the goby folding process, and a short cylindrical surface 61c5 similar to the cylindrical surface 61c3, and a roller pair 63c The other goby folding roller 62c has surfaces 62c0, 62c2, 62c3, 62c4 and 62c5 which are substantially complementary to the surfaces 61c0, 61c2, 61c3, 61c4 and 61c5. A gap is formed between the surface 61c1 and the surface 62c0. Accordingly, the second stage processed state portion S2 of the side edge 121 sandwiched between the rollers 61c and 62c of the roller pair 63c is a narrow semicircular convex surface and the concave surfaces 61c4 and 62c4, and the width of the positioning bent portion N4a. While passing in the L1 direction between the rollers 61c and 62c of the roller pair 63c with the directional position positioned, the second and third bent portions are deformed as shown in FIG. 9C. In the third stage processing state S3 in which the second stage bending of N2a and N3a progresses and the third stage bending of the first folding part N1a is performed, the third stage roller pair 63c exits. At this stage, the support frames 45 and 75 are oriented substantially parallel to the average tangential direction of the side edge 121a of the large plate 120 between the roller pairs 63a to 63c. The same applies to the other side edge portion 122.

  (A) of FIG. 10 shows the goby folding process by the 4th stage goby folding roller pair 63d of the goby folding roller mechanism 60. FIG. The fact that the peripheral surfaces of the two goby folding rollers 61c and 62c of the goat folding roller pair 63c are actually close to each other is the same as in the case of FIGS. In the fourth stage, the goby folding roller 61d is fitted into the small-diameter cylindrical surface 61d0, the outward-facing annular end surface 61d3, the large-diameter cylindrical surface 61d4, and the positioning uneven portion N4a so A thin semicircular convex surface 61d5 that regulates the position in the width direction of the plate 120 and a short cylindrical surface 61d6 similar to the cylindrical surface 61d4, and the other goby folding roller 62d of the roller pair 63d is a surface 61d0. , 61d3, 61d4, 61d5, 61d6 and substantially complementary surfaces 62d0, 62d3, 62d4, 62d5, 62d6. A gap is formed between the surface 61d0 and the inward and outward frustoconical surfaces 62d1 and 62d2. Therefore, the third-stage processed state portion S3 of the side edge 121 sandwiched between the rollers 61d and 62d of the roller pair 63d is a narrow semicircular convex surface and the concave surfaces 61d5 and 62d5 and the width of the positioning bent portion N4a. While passing in the L1 direction between the rollers 61d and 62d of the roller pair 63d with the directional position positioned, the first and fourth bent portions are deformed as shown in FIG. 10 (a). In the fourth stage processing state S4 in which the second and third bent portions N2a and N3a are bent in the third stage while substantially maintaining the bent state of N1a and N4a, the fourth stage roller Exit from pair 63d. At this stage, the support frames 45 and 75 are oriented substantially parallel to the average tangential direction of the side edge 121a of the large plate 120 between the roller pairs 63a to 63d. The same applies to the other side edge portion 122.

  FIG. 10B shows a goby folding process by the gond folding roller pair 63e of the fifth stage of the goby folding roller mechanism 60. FIG. The fact that the peripheral surfaces of the two folding rollers 61e and 62e of the pair of folding rollers 63e are actually close to each other is shown in FIGS. 9 (a) to 9 (c) and FIG. 10 (a). Same as the case. In the fifth stage, the goby folding roller 61e includes a cylindrical surface 61e0, an inwardly truncated conical portion 61e1, an inwardly facing annular end surface 61e2, an outwardly facing frustoconical surface 61e3, and an outwardly facing annular end surface 61e4. , A cylindrical surface 61e5, a narrow semicircular convex surface 61e6 that just fits into the positioning uneven portion N4a and regulates the position in the width direction of the large plate 120 during the folding process, and a short cylinder similar to the cylindrical surface 61e5 And the other folding roller 62e of the roller pair 63e has surfaces 62e0, 62e6, 62e7 that are substantially complementary to the surfaces 61e0 and 61e5, 61e6, 61e7. There are gaps between the surfaces 61e1, 61e2, 61e3, 61e4 and the cylindrical surface 62e0. Accordingly, the fourth stage processed state portion S4 of the side edge 121 sandwiched between the rollers 61e and 62e of the roller pair 63e is a narrow semicircular convex surface and the concave surfaces 61e6 and 62e6 and the width of the positioning bent portion N4a. While passing in the L1 direction between the rollers 61e and 62e of the roller pair 63e in a state where the directional position is positioned, it is deformed as shown in FIG. 10B, and the first, second and fourth The fifth stage roller in the fifth stage machining state S5 in which the fourth stage bending of the third folded part N3a is performed while substantially maintaining the folded state of the folded parts N1a, N2a, N4a. Exit from pair 63e. At this stage, the support frames 45 and 75 are oriented substantially parallel to the average tangential direction of the side edge 121a of the large plate 120 between the roller pairs 63a to 63e. The same applies to the other side edge portion 122.

  (C) of FIG. 10 shows the goby folding process by the goby folding roller pair 63f in the sixth stage of the goby folding roller mechanism 60. FIG. The fact that the two folding rollers 61f and 62f of the pair of folding rollers 63f are actually close to each other is that (a) to (c) in FIG. 9 and (a) to (b) in FIG. ). In the sixth stage, the goby folding roller 61f includes a cylindrical surface 61f0, an inward annular end portion 61f1, a short inward truncated cone surface 61f2, an outward annular end surface 61f3, a cylindrical surface 61f4, A semicircular convex surface 61f5 having a narrow width that restricts the position in the width direction of the large plate 120 that is just fitted into the positioning uneven portion N4a and that is being folded, and a short cylindrical surface 61f6 that is similar to the cylindrical surface 61f4. The other folding roller 62f of the roller pair 63f has surfaces 62f0, 62f5, 62f6 that are substantially complementary to the surfaces 61f0 and 61f4, 61f5, 61f6. There are gaps between the surfaces 61f1, 61f2, 61f3 and the cylindrical surface 62f0. Accordingly, the fifth stage processed state portion S5 of the side edge 121 sandwiched between the rollers 61f and 62f of the roller pair 63f has a narrow semicircular convex surface and concave surfaces 61f5 and 62f5, and the width of the positioning bent portion N4a. While passing in the L1 direction between the rollers 61f and 62f of the roller pair 63f in a state where the directional position is positioned, as shown in FIG. 10C, the first, second and fourth are deformed. In the sixth stage working state S6 in which the fifth stage bending of the third bent part N3a is performed while substantially maintaining the bent state of the bent parts N1a, N2a, N4a, the sixth stage roller Exit from pair 63f. When this stage is reached, the support frames 45 and 75 are oriented substantially parallel to the average tangential direction of the side edge 121a of the large plate 120 between the roller pairs 63a to 63f. The same applies to the other side edge portion 122.

  Thereafter, the same applies until the rear edge of the large plate 120 enters the folding roller mechanism 63. That is, in this goby folding mechanism 40, since the side edge 121a of the part of the large plate 120 where the gond folding process is newly started is positioned with respect to the positioning guide portion 56, the gouge folding process of the large plate 120 is performed. Regardless of the width of the portion to be formed, the gore-folding process is performed by the first-stage goose-folding roller pair 63a on the portion located in the width direction inside from the side edge 121a by a predetermined length with respect to the side edge 121a. Can be broken. Further, in the goby folding mechanism 40, the first plate is positioned at a specific position on the inner side in the width direction by a predetermined length from the side edge 121a with reference to the side edge 121a regardless of the width of the portion of the large plate 120 to be subjected to gouge folding. The positioning unevenness portion N4a formed by the pair of goby folding rollers 63a defines the gond folding positions of the gond folding rollers 63b, 63c,. Regardless of the width of the portion to be processed, the second to sixth stages of folding processing can be performed on a portion located in the width direction from the side edge 121a by a predetermined length with respect to the side edge 121a. During the goby folding process, the extending direction of the first to sixth goby folding roller pairs 63a,..., 63f is such that the gond folding roller pair 63a, .., 63f are parallel to the average tangential direction of the portion of the side edge 121a corresponding to the portion being processed. As described above, in the length range during the processing, the side edge 121a can be considered to be substantially linear, so the first to sixth stages of the pair of folding rollers 63a,. 63f extends in the same direction as that of the side edge 121a of the region. Therefore, the extension of the first-sixth-stage goby folding roller pairs 63a,..., 63f according to the inclination state of the large plate 120 changing in the L2 direction as the large plate 120 moves in the L1 direction. The existing direction, that is, the extending direction of the support frame 45 gradually changes around the rotation shaft 29.

  What has been described above also applies to the goby folding of the side edge 122 by the goby folding mechanism 70. In particular, the goby folding mechanisms 40, 70 are mirrors of each other, and the shape of the large plate 120 is also mirrored with respect to the center line in the width direction extending in the longitudinal direction. 70 and the corresponding side edge portions 121 and 122 of the large plate 120 balance each other, and the large plate 120 is easily moved stably in the L1 direction.

  Instead of the large plate 120B having a width gradually increasing in the L2 direction as shown in FIG. 7D, the width gradually decreases in the L2 direction as shown in FIG. 7B. In the case of the part 120A having the part 120d to be folded, when the part 120d located in the L2 direction than the part 120e having the maximum width is folded, the goby folding mechanisms 40 and 70 need to be brought close to each other. . This proximity corresponds to the positioning irregularities N4a, N4b formed by the first-stage goby folding roller pairs 63a, 93a, and the second-stage gond folding roller pairs 63b, 93b,..., 63f, 93f. This is realized by displacing the support frames 45 and 75 in the A1 and A2 directions with respect to the large plate 120 that is being processed by folding so that the uneven portions 61b5, 62b5,. However, in the case where the thickness of the large plate 120 is relatively thin and the positioning force by the positioning irregularities N4a and N4b is not sufficient, if desired, the guide rods 15 and 16 as indicated by the imaginary lines in FIG. May be inclined toward the center in the A direction, or as shown in FIG. 13, a biasing force for bringing the goby folding mechanisms 40 and 70 close to each other by elastic means H such as a tension spring may be provided.

  In the same manner as in the case of the large board 120, the decorative board 150 is folded. When the decorative plate 150 is folded, the folding rollers 61a, 62a; 61b, 62b; 61c, 62c; 61d, shown in FIGS. 9 (a) to 9 (c) and FIG. 10 (a) to (c), Instead of the pair of goby folding rollers 63a, 63b, 63c, 63d, 63e, 63f composed of 62d; 61e, 62e; 61f, 62f, (a) to (c) in FIG. 11 and (a) to (c) in FIG. ) 261a, 262a; 261b, 262b; 261c, 262c; 261d, 262d; 261e, 262e; 261f, 262f, a pair of goby folding rollers 263a, 263b, 263c, 263d, 263e, 263f is used. It is the same except for the point. 11 and 12, the bending of the end edge 152 of the decorative board 150 to be engaged with the end edge 121 of the large plate 120 will be described, but the end edge 151 also has a mirror-symmetric shape. A similar fold is performed except for certain points.

  As shown in FIG. 11 (a), the goby folding roller 261a constituting the first stage goby folding roller pair 263a includes a large-diameter cylindrical portion 261a0, an inward annular end surface portion 261a1, and an inward large-diameter cone. It has a trapezoidal portion 261a2, a short small-diameter cylindrical portion 261a3, an outward truncated cone-shaped portion 261a4, an inward small-diameter truncated cone-shaped portion 261a5, and a long small-diameter cylindrical portion 261a6. It has surface portions 262a0, 262a1, 262a2, 262a3, 262a4, 262a5, 262a6 having a shape substantially complementary to 261a0-261a6. On the edge portion 152 of the decorative plate 150, first-stage bending of the first to third and fifth bent portions Q1b, Q2b, Q3b, Q5b is formed by the goby folding rollers 261a, 262a ( State Sk1).

  Further, as shown in FIG. 11B, the goby folding roller 261b that constitutes the second stage goat folding roller pair 263b includes a small-diameter cylindrical portion 261b0, an outward frustoconical portion 261b2, and an inward frustoconical shape. 261b4, a narrow semicircular concave surface 261b5, an inner outward frustoconical portion 261b6, an inner long inward frustoconical portion 261b7, a large-diameter cylindrical portion 261b8, and the other goby folding roller 262b , 261b2, 261b4 (however, the radially outer portion), 261b5, 261b6, 261b7, 261b8 and the surface portion 262b2 (however, most of the radially outer portion), 262b4, 262b5 , 262b6, 262b7, 262b8. There are gaps between the radially inner portion of the surface portion 262b2 and the outward annular end surface portion 262b3 and the radially outer portion of the surface portion 261b4. Therefore, the second stage bending of the second, third and fifth bent portions Q2b, Q3b, Q5b is formed on the edge portion 152 of the decorative plate 150 by the goby folding rollers 261b, 262b ( State Sk2).

  Further, as shown in FIG. 11C, the goby folding roller 261c constituting the third-stage goby folding roller pair 263c includes a large-diameter cylindrical portion 261c0, an inwardly truncated cone-shaped portion 261c1, and a narrow width. It has a semicircular concave surface 261c4, an outer outward frustoconical portion 261c5, a cylindrical portion 261c6, an inner long outward frustoconical portion 261c7, and the other goby folding roller 262c has surface portions 261c0, 261c1 (however, , 261c4, 261c5, 261c6, 261c7, and surface portions 262c0, 262c1, 262c4, 262c5, 262c6, 262c7 having a substantially complementary shape. There is a gap between the short outward frustoconical surface portion 262c2 and the outward annular end surface portion 262c3 and the radially inner portion of the surface portion 261c1. Therefore, the second and third bent portions of the first and second bent portions Q1b and Q2b are formed on the edge portion 152 of the decorative plate 150 by the goby folding rollers 261c and 262c (state Sk3). ).

  Further, as shown in FIG. 12 (a), the goby folding roller 261d constituting the fourth-stage goat folding roller pair 263d includes a cylindrical portion 261d0, an inward annular end surface portion 261d1, and an outward frustoconical portion. 261d2, an outwardly facing annular end surface portion 261d3, a short large-diameter cylindrical portion 261d4, an inside outwardly large-diameter truncated cone portion 261d5, and the other folding roller 262d has surface portions 261d1, 261d4, 261d5 and The surface portions 262d1, 262d4, and 262d5 have substantially complementary shapes. There is a gap between the outward frustoconical portion 261d2 and the outward annular end surface portion 261d3 and the inward frustoconical portion 262d2 of the goby folding roller 262c. Therefore, the third folding portion Q3b is bent at the edge 152 of the decorative plate 150 by the goby folding rollers 261d and 262d, and the first folding step of the fourth folding portion Q4b. Is bent (state Sk4).

  Also, as shown in FIG. 12B, the goby folding roller 261e constituting the fifth stage goat folding roller pair 263e includes a small-diameter cylindrical portion 261e0, an inwardly truncated cone portion 261e3, and an outwardly truncated cone. 261e4, an outer annular end surface portion 261e5, a short large-diameter cylindrical portion 261e6, an inside outward large-diameter truncated cone-shaped portion 261e7, and the other folding roller 262e has surface portions 261e0, 261e6. It has surface portions 262e2, 262e6, 262e7 having at least a part of a complementary shape so as to be substantially close to 261e7. There are gaps between most of the inwardly truncated truncated cone portion 262e3 and cylindrical portion 262e6 of the goby folding roller 262e and the corresponding surface portions 261e3, 261e4, 261e5 of the goby folding roller 261e. Accordingly, the edge 152 of the decorative plate 150 is bent at the fourth stage by the goby rollers 261e and 262e at the third bent part Q3b and at the second stage of the fourth bent part Q4b. Is bent (state Sk5).

  Further, as shown in FIG. 12 (c), the goby folding roller 261f constituting the sixth stage goat folding roller pair 263f includes a small-diameter cylindrical portion 261f0, an outward annular end surface portion 261f5, and a short cylindrical portion 261f6. , An outward large-diameter annular end surface portion 261f7, a large-diameter outward frustoconical portion 261f8, and the other folding roller 262f includes a circular outer edge portion 262f3 and an inward-conical truncated cone of the outward frustoconical portion 262f2. The portion 262f8 can be substantially close to part of the surface portion 261f0 and the surface portion 261f8. Further, there are gaps between the outward annular end surface portion 262f4 of the goby folding roller 262f, a part of the corresponding surface portion 261f0 of the goby folding roller 261f, and the surface portions 261f5, 261f6 and 261f7. Therefore, the end-stage portion 152 of the decorative plate 150 is bent at the final stage to the second to fourth bent portions Q2b, Q3b, Q4b by the goby folding rollers 261f, 262f, and the finishing plate 150 The goby folding process is completed (state Sk6).

  By simply pressing the goby folded decorative board 150 formed in this way against the goby folded part of the large board 120 at the gond folded part, the decorative board 150 and the gond folded part of the large board 120 are engaged. What can be described is as described in relation to FIG.

  In this example, since the decorative board 150 has a certain width and both side edges are linear, the goby folding mechanism 40, 70 rotates around the shafts 29, 39 like the goat folding device 1. Instead of being flexible, the goby folding mechanisms 40 and 70 may be mounted on the basic frame structure 10 in a parallel state. Further, instead of the goby folding mechanisms 40, 70 being movable in translation along the guide means 11, the goby folding mechanisms 40, 70 may be simply mounted and fixed to the basic frame structure 10 at regular intervals. Further, the guide positioning mechanisms 56 and 86 may be omitted.

  For example, when the large plate 120 is laid on the outer surface of the egg-shaped tank 101, as indicated by an imaginary line 1 in the lower part of FIG. With respect to the portion where the large plate 120 should be disposed, the goby folding device 1 is disposed near the lower end of the portion and the roll of the corrugated large plate 120 is disposed in front of the goby folding device 1, and the large plate 120 is removed from the roll. As shown in FIG. 1 and the like, the large plate 120 is fed into the goby folding device 1, and the goblet folded large plate 120 coming out of the gouge folding roller pair 63 f and 93 f on the upper end side of the goby folding device 1 is placed in the tank 101. The gouge folding process is performed by continuing to pull up upward along the outer periphery of the tank 101 using the yagras assembled on the outer periphery until the front edge 120c of the large plate 120 reaches the upper end of the tank 101. At the same time, it may make laying of the external surface of the tank 101 of the large plate 120. The same applies to the decorative board 150.

  In the above description, the goby folding has been described. However, it may be possible to perform goat fastening by stacking two or more plate-like portions and carrying out goby folding.

The goby folding apparatus of one preferable Example by this invention is shown, (a) is front explanatory drawing, (b) is IB-IB sectional explanatory drawing of (a). 1A and 1B show an operating state of the goby folding apparatus of FIG. 1, wherein FIG. 1A is a front explanatory view similar to FIG. 1A, and FIG. 1B is a cross-sectional explanatory view similar to FIG. 2 (a) IIB-IIB line cross section). The perspective exploded explanatory drawing of the goby folding apparatus of FIG. The caster as a rocking | fluctuation support part used with the goby folding apparatus of FIG. 1 is shown, (a) is the IVA-IVA sectional view explanatory drawing of (b), (b) is the IVB-IVB line of (a). Cross-sectional explanatory drawing. The perspective explanatory drawing of the goby folding mechanism of the goby folding apparatus of FIG. FIG. 6 is a perspective explanatory view of a drive unit of the goby folding mechanism of FIG. 5. FIG. 2 shows an example of the use of the goby folding band formed by the goby folding mechanism of FIG. 1. FIG. (B) is a developed view of a large plate applied to the exterior of the egg-shaped tank of (a), and (c) is a perspective view of a dome-shaped tank that is exterior-decorated with a goby folded band material. Explanatory drawing, (d) is a developed view of a large plate applied to the exterior of the dome-shaped tank of (c), and (e) is a perspective explanatory view showing an outline of exterior finishing of the dome-shaped tank of (c). 7A and 7C show the details of the exterior cosmetics of the egg-shaped tank of FIG. 7A and the dome-shaped tank of FIG. 7C, where FIG. Cross-sectional explanatory drawing of processed large board, (c) is cross-sectional explanatory drawing of a hanging pedestal, (d) is an exterior decorative board combining a hanging pedestal pedestal, a goby-folded large board and a goby-folded decorative board Cross-sectional explanatory drawing of a structure. It shows a part of the goby folding stage of the large plate, (a) is an explanatory view showing goby folding by a first stage goat folding roller pair, (b) is the second stage goby folding Explanatory drawing which showed the goby folding process by a roller pair, (c) is explanatory drawing which showed the goby folding process by a 3rd stage goby folding roller pair. It shows the remaining part of the goblet folding stage of the large plate, (a) is an explanatory diagram showing the goby folding process by the fourth stage goby folding roller pair, (b) is the fifth stage Explanatory drawing which showed the goby folding process by a goby folding roller pair, (c) is explanatory drawing which showed the goby folding process by the 6th stage goat folding roller pair. A part of the goby folding process of the decorative board that should have a goby fold to be engaged with the goby fold of the large board is shown. Explanatory drawing showing the processing, (b) is an explanatory diagram showing the goby folding process by the second stage goby folding roller pair, (c) shows the goby folding process by the third stage goby folding roller pair. Illustration. The remaining part of the goblet folding stage of the decorative board that should have the goby folds engaged with the goby folds of the large plate is shown, (a) by the fourth level goby folding roller pair Explanatory drawing showing the goby folding process, (b) an explanatory drawing showing the goby folding process with the fifth stage goby folding roller pair, (c) with the goat folding process with the 6th gond folding roller pair FIG. Front explanatory drawing similar to (a) of FIG. 1 about the modification of the goby folding apparatus of FIG. Side sectional explanatory drawing similar to FIG.1, (b) about the modification of the goby folding apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Goby folding apparatus 10 Base frame structure part 11 Guide means 15, 16 Guide rod 20, 30 Carriage (swinging support part)
25, 26 Translational sliding bearing 27, 28 Rotating bearing 29 Rotating shaft (pin)
40, 70 Goby folding mechanism 41, 42, 71, 72 Support plate 45, 75 Support frame 48, 78 Fixed plate 49, 79 Drive motor 50, 80 Power transmission gear mechanism 51a, 51b, 51c, 51d, 51e, 51f, 52a, 52b, 52c, 52d, 52e, 52f Output shaft 53 Drive gears 54a, 54b, 54c, 54d, 54e, 54f Drive gear pairs 55a, 55b, 55c, 55d, 55e Intermediate gears 56, 86 Fixed ruler (positioning guide) Part)
57 Bottom plate portion 60, 90 Goby folding roller mechanism 61a3 annular convex portion (positioning concave / convex portion forming portion)
61b5, 61c4, 61d5, 61f5 annular convex part (positioning copying part)
62a3 annular recess (positioning uneven part forming part)
62b5, 62c4, 62d5, 62f5 annular recess (positioning copying part)
63, 63a, 63b, 63c, 63d, 63e, 63f Haze folding roller pair 93, 93a, 93b, 93c, 93d, 93e, 93f Haze folding roller pair 100 Curved surface structure (tank)
DESCRIPTION OF SYMBOLS 101 Egg-shaped tank 102 Domed tank 110 Hanging pedestal 120 Large board 120a, 120b Side edge 120c Front edge 121, 122 Side edge part 121h, 122h Goby folding side edge 150 Decorative plate A, A1, A2 Translation direction C1, C1 Rotation center axis D, D1, D2, E, E1, E2 Rotation direction G1 Approach direction L, L1, L2 Length direction N1a, N1b, N2a, N2b, N3a, N3b, N4a, N4b Folded portion U Work material V1, V2 passage (groove)

Claims (7)

A first roller support base having a first positioning guide for defining the position of the first side edge of the belt-like workpiece on the entry side, and the belt-like workpiece from the entrance side on the first roller support stand A first goby folding mechanism comprising a plurality of first goby folding roller pairs attached in alignment to the exit side;
In a state of facing the second roller support base having the second positioning guide portion defining the position of the second side edge of the strip-shaped workpiece on the entry side, and the plurality of first goby folding roller pairs A second goby folding mechanism portion comprising a plurality of second goby folding roller pairs attached to the second roller support base in an aligned state from the entrance side to the exit side of the strip-shaped workpiece;
A first extending in a direction intersecting a plane defined by the alignment direction of the plurality of first roller pairs of the first goby folding mechanism and the extending direction of the rotation center axis of the rollers of the first roller pair. Of the plurality of first goblet folding roller pairs, the center side of the workpiece in the width direction of the workpiece is larger than the goblet folding roller pair on the exit side of the plurality of first goby folding roller pairs A first swing support part for supporting the first goby folding mechanism part in a state where a swing biasing force is exerted on the first goby folding mechanism part so as to be close to
A second extending in a direction intersecting a plane defined by the alignment direction of the plurality of second roller pairs of the second goby folding mechanism and the extending direction of the rotation center axis of the rollers of the second roller pair. The center of the workpiece in the width direction of the workpiece is larger than the pair of the second folding roller pair on the input side of the plurality of second folding roller pairs. A second support portion configured to support the second goby folding mechanism portion in a state in which a swing biasing force is exerted on the second goby folding mechanism portion so as to be close to the
First and second goby folding mechanism is closed and a base portion for supporting as the first oscillating support and a second support portion to be closely spaced may be closely spaced to each other,
The first and second side edges of the belt-like workpiece are positioned and inserted between the first and second positioning guide portions of the first and second goby folding mechanism portions, and the belt-like work is driven by the rotation of the goby folding roller pair. After the first and second side edges of the work material are bitten, further rotation driving of the pair of goby folding rollers causes the first and second goby folding mechanism parts to move to the belt-like work material. The first and second side folding edges of the first and second goby folding mechanisms are engaged with and separated from the first and second goby folding roller pairs. A goby folding apparatus configured to advance goby folding by rotating it so as to be parallel to the portion of the strip-shaped workpiece . The goby folding apparatus according to claim 1, wherein the first and second goby folding mechanisms are arranged such that the entry side is positioned below the exit side . Positioning / guidance of the entry side roller pair among the plurality of gond folding roller pairs of at least one of the first and second goby folding mechanism sections in the vicinity of the side edge of the workpiece. The remaining roller pairs of the plurality of goby folding roller pairs of the at least one goat folding mechanism are covered along the thin positioning / guide bends. The goby folding apparatus according to claim 1, further comprising a convex portion and a concave portion complementary to the positioning / guide folding portion for guiding the workpiece. 4. The biasing force is applied to the first and second goby folding mechanism parts in a direction in which the first and second goby folding mechanism parts are brought close to each other. 5. Goby folding device. A goby folding method for carrying out gouge folding of a side edge of a strip-shaped workpiece having a bent side edge using the goby folding device according to any one of claims 1 to 4. The goat folding device according to any one of claims 1 to 4 is arranged on the lower end side of the structure, and the goblet folding process is performed on the work piece by using the goby folding device, and the work piece in the band shape is constructed. A method of laying a goby folded band material that is sent out toward the upper part of the machine and attaches the gob folded band material to the structure. A gob-folding method according to claim 5 or a method for laying a gob-folded strip material according to claim 6, wherein the strip-shaped work material to be subjected to gouge-folding is corrugated in the width direction in advance.

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