JP2006021238A - Method and apparatus for manufacturing honeycomb core - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate manufacture of a honeycomb core with a plurality of hollow column-shaped cells having open ends on both sides, the open ends on one side being formed into curved surfaces. <P>SOLUTION: A plate base material 27 which is rolled in a roll shape is successively drawn out and cut into a curved line shape with a cutter 29, and the surface on one side of the plate base material 27 is coated with adhesives which are made to stick to an adhesive coating roller 35 as adhesives 33. The plate base material 27 after coated with the adhesives is changed from the horizontal state to a vertical state and cut into a predetermined size, and thus a plate 31 is obtained. A laminate 43 is made by laminating the plurality of cut plates 31 and pressurizing them and adjacent plates 31 are mutually joined and fixed by charging the laminate 43 into a heat treating furnace 45 while it is kept pressurized. After that, the honeycomb core is manufactured by separating unjoined fixed parts other than the joined fixed parts between mutual adjacent plates 31. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method and an apparatus for manufacturing a honeycomb core provided with a curved surface portion on an end face on at least one open end side of a plurality of hollow columnar cells having both ends opened.

  At present, both end surfaces of both open ends of the hollow columnar cells are flat, and a method for manufacturing a flat honeycomb core having a constant cell height dimension is based on a stretch type and a corrugated type depending on the material and thickness of the substrate. Although it can be divided into two types, most flat honeycomb cores are manufactured by the expansion method.

  As shown in FIG. 15 (a), the length-expansion type is obtained by cutting a strip-shaped plate base material 1 made of aluminum foil or paper wound in a roll shape into a predetermined size as shown in FIG. 15 (b). The rectangular plates 3 are prepared, and the adhesive 5 is applied to each of the plates 3. Then, a plurality of plates 3 are stacked on each other as shown in FIG. The laminated body 7 is formed.

  Here, with respect to the application of the adhesive 5, as shown in the side view of FIG. 16A, the application positions on the plates 3 adjacent to each other are shifted so as to be staggered, and in this state, each plate 3 is illustrated. The laminated body 7 of FIG. 15C is formed by overlapping and bonding as shown in 16 (b).

  Thereafter, the laminated body 7 is cut to a specified dimension H as shown in FIG. Subsequently, the single honeycomb core laminated body 9 is stretched by pulling from both sides in the stacking direction as shown in FIG. 16C, whereby a plurality of cells 11 are formed between adjacent plates. Then, as shown in FIG. 16 (d), by adjusting the shape of each cell 11, a flat honeycomb core 13 having a constant height H of the cell 11 as shown in FIG. 15 (e) is completed.

  On the other hand, the corrugated type is used when the plate base is thick or when a special material is used as the plate base. As shown in FIG. As shown in FIG. 17B, a corrugated roll base 15 made of aluminum foil or paper wound in a roll shape is sandwiched from both sides to form a corrugated plate-shaped portion 19. Then, the plate base material 1 on which the corrugated plate-shaped portion 19 is formed is cut into a predetermined length as shown in FIG.

  Then, a plurality of corrugated plate plates 21 are laminated as shown in FIG. 17D and bonded and fixed by an adhesive or the like to form a corrugated plate laminate 23. Then, the corrugated plate laminate 23 is formed as shown in FIG. As described above, the cell height dimension H is cut to obtain a flat honeycomb core 25.

By the way, with respect to a flat honeycomb core having a constant cell height dimension as described above, at least one open end side end surface of the cell is not a flat surface, but a honeycomb core having a curved shape, For example, there are those described in Patent Documents 1 to 3 below.
JP-A-6-7867 Japanese Patent Laid-Open No. 6-316012 Japanese Patent Laid-Open No. 9-19298

  By the way, what is described in Patent Documents 1 and 2 is subjected to another processing on the plate, such as forming protrusions on the plate itself constituting the honeycomb core, and those described in Patent Document 3 are hollow. The planar end face is cut into a curved shape with respect to a honeycomb core having a rectangular parallelepiped shape whose end faces on both opening end sides of the columnar cells are flat.

  Thus, in the conventional method for manufacturing a honeycomb core, the manufacturing work is complicated, such as performing another processing on the plate or cutting the honeycomb core, and improvement is desired. .

  Therefore, an object of the present invention is to facilitate the manufacture of a honeycomb core in which at least one open end side end surface of a plurality of hollow columnar cells has a curved shape.

  The present invention includes a plurality of hollow columnar cells having both ends open, and a honeycomb core manufacturing method including a curved surface portion on at least one open end side of each cell. Cutting the edge portion corresponding to the curved surface portion of each plate into a curved shape, laminating the plurality of cut plates in the thickness direction, and adjoining at intermittent positions along the curved shape The most important feature is that the plates are joined and fixed, and the non-joined and fixed parts other than the joint and fixed parts are separated from each other between the adjacent plates to form the cells.

  According to the present invention, the edge portion corresponding to the cell opening side end surface of each of the plurality of plates constituting the honeycomb core is cut in advance into a curved shape corresponding to the curved surface shape portion of the honeycomb core end surface, After laminating and fixing plates in the plate thickness direction, a plurality of hollow columnar cells are formed by separating non-bonding fixing parts between adjacent plates, so that protrusions are formed on the plate itself, etc. Therefore, it is not necessary to perform any other processing or cutting the honeycomb core, and it is easy to manufacture a honeycomb core having a curved end surface on at least one open end side of a plurality of hollow columnar cells. be able to.

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

  FIG. 1 is a production process diagram showing a simplified method for producing a honeycomb core according to the first embodiment of the present invention. A belt-shaped plate base material 27 made of aluminum foil or paper formed in a roll shape is conveyed in a horizontal state in the direction indicated by an arrow A in FIG. 1, and is curved in a curved shape by a cutter 29 as a cutting means in the middle of the conveyance. Cut [cutting step].

  The cutting curve shape at this time is based on shape data corresponding to the curved surface shape of the honeycomb opening end surface of each of the plurality of plates 31 constituting the honeycomb core. Further, as the cutter 29, a laser beam, a water jet, a blade, or the like is used depending on the material or thickness of the plate base material 27, and this cutter 29 is a width of the plate base material 27 indicated by an arrow B in FIG. Move in the direction and cut continuously.

  Further, in the above-described cutting process, a predetermined position, for example, the center position of the length in the conveyance direction for each of the plates 31 is marked by making a notch 27a with a laser beam or the like. Note that marking may be performed with ink or the like instead of the notch 27a.

  On the front side of the cutter 29 in the substrate conveyance direction, the adhesive 33 is applied to the lower surface of the cut plate substrate 27 in FIG. 1 [adhesive application step]. In the adhesive application step, a plurality of grooves 35a extending in the axial direction are formed at equal intervals along the circumferential direction on the surface of the adhesive application roller 35 as an adhesive application means. In a state where a part on the lower side is immersed in an adhesive reservoir 39 made of a thermosetting resin filled in the adhesive tank 37, it is rotated in a direction indicated by an arrow C in FIG.

  As a result, the adhesive enters the groove 35a of the adhesive application roller 35. At this time, the adhesive that adheres to the surface of the adhesive application roller 35 other than the groove 35a is the adhesive on the front side in the rotational direction of the adhesive application roller 35. The rubber blade 41 is scraped off by the side of the application roller 35.

  Then, the adhesive in the groove 35a adheres to the lower surface in FIG. 1 of the plate base material 27 conveyed in synchronization with the rotation of the adhesive application roller 35 by the adhesive application roller 35 coming into contact therewith. The adhesive 33 adhering to the plate base material 27 is formed intermittently at regular intervals along the conveying direction of the plate base material 27, in other words, along the curved shape of the plate base material 27 cut by the cutter 39. Is done.

  On the front side in the substrate transport direction of the adhesive application roller 35, the linear edge 27c opposite to the edge 27b obtained by cutting the horizontal plate substrate 27 coated with the adhesive into a curved shape is the lower part. Stand upright so that Thereafter, the plate substrate 27 in the upright state is further transported forward and cut to a specified length in the transport direction to obtain the above-described plate 31 [dimension cutting step].

  The necessary number of plates 31 cut to the specified length in the dimension cutting step are sequentially stacked and pressed to obtain a laminate 43. When the plurality of plates 31 are overlapped, the notch 27a provided at the center of the length in the transport direction is used as a mark. Thus, by forming the laminated body 43 by superimposing a necessary number of the plates 31, a continuous three-dimensional curved surface shape is obtained by the edge portion 27 b cut into the curved shape of each plate 31.

  The laminated body 43 composed of the plurality of stacked plates 31 is put into a heat treatment furnace 45 while being pressurized, and the adjacent plates 31 are bonded and fixed together by the applied adhesive 33. It should be noted that the application position of the adhesive 33 on each plate 31 at the time of bonding and fixing is shifted so that the adjacent plates 31 are staggered in the same manner as shown in FIGS. 16 (a) and 16 (b). And

  After the plates 31 are bonded and fixed to each other, the laminated body 43 taken out from the heat treatment furnace 45 performs a stretching operation similar to the operation shown in FIG. By the stretching operation, the plates 31 adjacent to each other in the non-joining portion other than the joining portion by the adhesive 33 are separated from each other by the unillustrated separating means, and the cell 11 as shown in FIG. 16 (d) is formed. become. Then, the honeycomb core is completed by adjusting the shape of the cell. In the honeycomb core, the end surface on the cell opening end side on the side corresponding to the end edge portion 27b cut into the curved shape of each plate 31 is provided with a curved portion.

  A honeycomb core having an end face on one open end side of such a cell having a curved surface portion does not require separate processing such as forming a protruding portion on the plate itself or cutting the honeycomb core. Therefore, manufacturing is easy, continuous production can be performed, and mass production becomes possible.

  In addition, when manufacturing a dome-shaped honeycomb core 75 having a three-dimensional curved surface as shown in FIG. 2A, conventionally, as shown in FIG. 2B, a rectangular parallelepiped honeycomb in which all the honeycomb cores 75 are accommodated. The above-described three-dimensional curved honeycomb core 75 is formed by cutting from the core 77. The shapes of the cross sections 1 and 2 in this case are FIGS. 3A and 3B, respectively, and the hatched portions are the end members 79 and 81 that are removed by cutting.

  On the other hand, in the manufacturing method of the present invention, the length of the plate 31 (the length in the substrate transport direction in FIG. 1) is dimensionally cut according to the shape data corresponding to the curved surface shape created in advance. The shapes of the cross sections 1 and 2 in 2 (b) are shown in FIGS. 4 (a) and 4 (b), respectively, and the hatched portions are end members 83 and 85 that are removed by cutting. In this case, as compared with the conventional method shown in FIG. 3, the portions 87 and 89 surrounded by the broken line with respect to the cross section 1 and the portions 91 and 93 surrounded by the broken line with respect to the cross section 2 are the portions for improving the material yield. This can contribute to cost reduction.

  Next, a specific manufacturing apparatus in the method for manufacturing the honeycomb core shown in FIG. 1 will be described.

  FIG. 5 shows an operation of bringing the plate base material 27 after the adhesive application process of FIG. 1 from a horizontal state to an upright state. The plate base material 27 after application of the adhesive 33 is fed forward by a pair of horizontal feed rollers 47 not shown in FIG. 1, and a square pyramid base guide 49 is disposed in front of the horizontal feed rollers 47. . By moving the adhesive application surface of the plate base material 27 in contact with one inclined surface 49a at a position opposite to the base material conveyance direction of the base material guide 49, the curved edge portion 27b is at the top, The linear end edge portion 27c gradually rises so as to be the lower portion, and becomes an upright state.

  The plate base material 27 in the upright state is transported toward the above-described dimension cutting step while being in an upright state by a pair of upright feeding rollers 51 omitted in FIG. 1 disposed before the dimension cutting step. To do.

  The horizontal feed roller 47, the base material guide 49, and the upright feed roller 51 with which the application surface of the adhesive 33 comes into contact are made of materials that are difficult to adhere the adhesive 33 to.

  In the dimension cutting step, as shown in FIG. 6, a plate 31 having a specified dimension is obtained by using a cutter 53 that cuts the plate base material 27 from both sides, and this cutting position is determined as follows.

  A notch position sensor 55 is disposed in the vicinity of the front side of the cutter 53 in the substrate conveyance direction, and the notch position sensor 55 is positioned before and after the notch position sensor 55 in the substrate conveyance direction after detecting the notch 27a of the plate substrate 27. The pair of base material guiding mechanisms 57 clamps the plate base material 27 and moves forward to guide the plate base material 27.

  When the calculated values taking into account the distance between the position of the notch 27a or the cutter 53 and the notch position sensor 55, the guiding distance, and the like during the guiding of the plate base material 27 reaches the length of each initially specified plate 31. Then, the plate base material 27 is cut by the cutter 53 to obtain the plate 31.

  Here, for example, as shown in FIG. 7, when the edge portion on the lower side of the plate 310 in an upright state is also curved, and the recess 310 a is formed at the center in the width direction, Notches 310c are formed in the straight portions 310b at both ends in the width direction, and after detecting the notches 310c, the plate 310 is clamped and guided. In this case, when the notch position sensor 55 detects the notch 310c on the front side in the substrate transport direction, the plate 310 is clamped and fixed by the base material guiding mechanism 57, and then the notch 310c on the rear side in the transport direction is detected by the notch position sensor 55. To do.

  During the guidance of the plate base material 27, the calculated values taking into account the position of the two notches 310c, the distance between the cutter 53 and the notch position sensor 55, the guidance distance, and the like are the lengths of the initially specified plates 310. At this point, the plate base material 27 is cut by the cutter 53 to obtain the plate 310.

  The plate 31 after being cut by the cutter 53 is guided forward by a base material guiding mechanism 57 that moves along the first straight portion 59 a of the base material transport guide 59. The substrate conveyance guide 59 includes a second straight portion 59c that is bent 90 degrees in a curved shape on the left side in the traveling direction at the first bent portion 59b forward in the guiding direction, and extends linearly in front of the first bent portion 59b. As shown in FIG. 8A, an inclined surface 61 is formed in front of the second straight line portion 59c so that the front side (right side in FIG. 8) is the lower portion. Further, a positioning protrusion 63 into which the notch 27 a of the plate 31 enters is installed on the extension of the base material conveyance guide 59.

  A pressing plate 65 is installed on the inclined surface 61 in the vicinity of the right end in FIG. Further, the base material guiding mechanism 57 moves to the vicinity of the upper portion of the inclined surface 61 indicated by the solid line in FIG. 8B, and guides the plate 31 to the inclined surface 61. Although not shown in the figure, the plate 31 guided to the inclined surface 61 is up to the pressing plate 65 while maintaining an upright state by supporting both ends and an upper portion thereof in the width direction (direction orthogonal to the paper surface in FIG. 8). Move.

  The base material guiding mechanism 57 that has guided the plate 31 to the position of the solid line in FIG. 8B is lowered along the guide hole 67 formed downward on the inclined surface 61 as shown in FIG. 8C. Then, as shown in FIG. 6, the third straight portion 59d parallel to the first straight portion 59a, and the second bent portion 59e bent from the third straight portion 59d to the left in the traveling direction by 90 degrees in a curved shape. , Sequentially through a third straight line portion 59f parallel to the second straight line portion 59c, and returns to the position below the first straight line portion 59a. Further, the base material guiding mechanism 57 moves upward from the lower position and returns to the original position, that is, the front and rear position of the notch position sensor 55 in the base material transport direction.

  The pair of base material guiding mechanisms 57 that have returned to their original positions in this manner repeatedly guides the plate 31 described above after cutting the size of the plate base material 27, and stacks the necessary number of plates 31 on the inclined surface 61. To do. A plurality of substrate guiding mechanisms 57 are installed depending on the production speed. Thereafter, as shown in FIG. 9 (a), a pressing plate 69 is also arranged on the side opposite to the pressing plate 65 described above, and both pressing plates 65, 69 are pressed from both sides by a pressing device 71 to form a laminate. 43 is obtained.

  As shown in FIG. 9B, the laminate 43 pressed by the pressurizing device 71 is transferred to the heat treatment furnace 45 shown in FIG. 31 are joined and fixed together. Therefore, the heat treatment furnace 45 and the pressurizing device 71 constitute a joining and fixing means for joining and fixing the plates 31 to each other.

  In the first embodiment described above, the plate base material 27 is cut into a curved shape with one cutter 29 so that one open end face of the honeycomb core has a curved portion. Two members may be arranged in the width direction of the material 27, and both sides in the width direction of the plate base material 27 may be cut into a curved shape so that both opening end faces of the honeycomb core have curved portions.

  In addition, a plurality of roll-shaped plate base materials 27 are installed one above the other in FIG. 1, and a plurality of plate base materials 27 that are transported close to each other in a horizontal state are simultaneously cut by a cutter 29, thereby The honeycomb core can be manufactured. In this case, when the plate base material in the horizontal state is raised to the upright state, the plurality of plate base materials 27 that move close to each other in the horizontal state must be separated from each other to some extent.

  Furthermore, the width dimension of the plate base material 27 can be made larger than that in FIG. 1, and a plurality of cutters 29 can be arranged in the width direction of the plate base material 27 to simultaneously manufacture honeycomb cores having different shapes.

  FIG. 10 is a manufacturing process diagram showing a method for manufacturing a honeycomb core according to the second embodiment of the present invention. In this embodiment, as shown in FIG. 10 (a), a plurality of rectangular plate base materials 95 made of aluminum foil or paper are stacked, and the plurality of plate base materials 95 in the stacked state are shown in FIG. A plurality of plates 97 having substantially the same shape as the plate 31 in the illustrated first embodiment are cut by a cutter 99 as cutting means.

  At this time, the hatched portion in FIG. 10A is removed by the cutter 99, and the edge 97a opposite to the removed portion of the plate 97 located at both ends is a straight portion. The plurality of (here, six) plates 97 are staggered along the arrangement direction. Then, the straight portions 97a of the plates 97 facing each other and the protruding portions 97c of the edge portions 97b having a curved shape facing each other are connected to each other as shown in FIG. That is, in the example of FIG. 10, a plate continuum 101 is formed by integrating six plates 97 connected in the arrangement direction.

  Then, as shown in FIG. 10 (c), the plate continuum 101 is moved and conveyed between a pair of adhesive application rollers 103 and 104 as adhesive application means, and bonded to both surfaces of the plate continuum 101. Agent 105 is applied. The adhesive application rollers 103 and 104 here are different from the adhesive application roller 35 of FIG. 1 in that the adhesive is attached to a plurality of grooves 103a and 104a formed along the circumferential direction, so that FIG. The adhesive 105 can be applied to each plate 97 in the same positional relationship.

  Here, the groove 103a of the upper adhesive application roller 103 and the groove 104a of the lower adhesive application roller 104 are positioned so as to be staggered along the axial direction of each roller. As a result, the application position of the adhesive 105 to each plate 97 is adjacent to each other when the plates 97 are overlapped and bonded and fixed as described later, as shown in FIGS. 16 (a) and 16 (b). The plates 97 are shifted so as to be staggered.

  Subsequently, as shown in FIG. 11 (a), the folding edges 107 and 109 that can be moved up and down are arranged on both the upper and lower sides of the plate continuum 101, and the linear edge 97a of each plate 97 is curved at the bottom. The plate is folded upright so that the end edge portion 97b becomes the upper portion, and a plurality of plates 97 are overlapped.

  The pair of wires 107 and 109 move up and down while being supported by support rods 113 and 115 disposed on both sides in the width direction of the plate 97 orthogonal to the conveying direction of the plate continuum 101. Further, the lower wire 109 is positioned in front of the upper wire 107 in the transport direction, and the lower wire 109 pushes up the vicinity of the protruding portion 97c of the curved edge portion 97b of the plate 97 upward. When the plate 97 adjacent to this rises along with the start-up, the adjacent plate 97 is pressed downward by the upper wire 107 and moved in the transport direction to be folded. When the upper wire 107 moves in the transport direction, the lower wire 109 is retracted downward so as not to be eliminated by the plate 97.

  The plurality of folded plates 97 are pressed in the stacking direction by a pressing device (not shown) to form a stacked body 111 as shown in FIG. 11B, and in a state where the stacked body 111 is pressed, a heat treatment furnace It is carried into 117 and the plates 97 are joined and fixed together. The above-described press apparatus (not shown) and the heat treatment furnace 113 constitute a joining and fixing means for joining and fixing the adjacent plates 97 with the adhesive 105.

  The laminated body 111 in which the plates 97 are bonded and fixed by the adhesive 105 is subjected to a stretching operation in the same manner as that shown in FIG. By the stretching operation, the adjacent plates 97 in the non-joining part other than the joining part by the adhesive 105 are separated from each other by the unillustrated separating means, and the cell 11 as shown in FIG. 16D is formed. Become. Then, the honeycomb core is completed by adjusting the shape of the cell. In this honeycomb core, the end surface on the cell opening end side on the side corresponding to the end edge portion 97b cut into the curved shape of each plate 97 is provided with a curved portion.

  A honeycomb core having a curved surface portion on one open end side of such a cell may be subjected to another processing such as forming a protrusion on the plate itself, as in the first embodiment, On the other hand, since it is not necessary to perform cutting, manufacturing is easy, continuous production can be performed, and mass production becomes possible.

  The conventional method of cutting a honeycomb core into a curved surface shape depends on the cutting speed (processing time, attachment / detachment of the product to / from the processing apparatus, etc.), whereas this method is a process of assembling the plate continuum 101. Depends on speed. For this reason, the product shape (complex shape and honeycomb core with a large volume) which takes time for cutting is more effective.

  In a large product, since the entire circumference of the plate continuum 101 is long, the material cutting time by the cutter 99 is long. However, since the plate continuum 101 can be prepared, there is no direct influence on the production time. .

  FIG. 12 shows another example of the second embodiment, in which a plurality of plates 119 constituting the honeycomb core correspond to honeycomb cores each having a curved surface portion on both end face sides of the cell, Both edge portions 119a and 119b of each plate 119 are curved. And about one edge part 119a, it is set as the state which connected protrusion part 119c of adjacent plate 119, and the other edge part 119b connected protrusion part 119d of adjacent plate 119, respectively. A plate continuous body 121 in which five plates 119 are integrated is formed.

  As described above, even if both opening end faces of the honeycomb core have a curved surface shape, and even if the honeycomb core opening end face has a complicated three-dimensional curved surface shape, between the plates 119 adjacent to each other, along the curved surface. Since there is continuity, continuous production can be easily performed by making the plate 123 disassembled one by one as shown in FIG.

  Further, as shown in FIG. 14, in the case of a honeycomb core manufactured by laminating a plurality of plates 125 having concave portions 125a that enter the inside, the conventional cutting cannot be manufactured due to machine interference or the like. However, in the method according to the above-described second embodiment, the concave portion 125a can be easily manufactured because it can be cut with the cutter 99.

  According to the present invention, the belt-shaped plate base material is transported in the longitudinal direction, the plate base material is cut into the curved shape along the transport direction, and the plate base material cut into the curved shape is transported as the material. Since the plate is cut to a specified length in the direction, continuous production of a honeycomb core having a curved surface portion on at least one opening end surface can be easily performed.

  Since the bonding and fixing of the plates are performed using an adhesive, the bonding and fixing of the plates can be easily and reliably performed.

  In a honeycomb core manufacturing apparatus including a plurality of hollow columnar cells having both ends open, and a curved surface portion on an end surface on at least one open end of the cell, each of the plurality of plates constituting the honeycomb core A cutting means for cutting the edge corresponding to the curved surface shape portion into a curved shape, and a plurality of plates cut by the cutting means are stacked in the thickness direction, and adjacent at intermittent positions along the curved shape. A separation fixing unit that bonds and fixes plates to be bonded together and a non-bonding fixing site other than the bonding and fixing sites of a plurality of plates that are bonded and fixed by the bonding and fixing unit are separated between adjacent plates to form the cell. Each of the edge portions of the plurality of plates constituting the honeycomb core has a curved shape corresponding to the curved shape portion of the honeycomb core. After staking and fixing the plurality of cut plates to each other, cells can be formed by separating them from each other between adjacent plates, and other processing such as forming protrusions on the plates themselves, There is no need to cut the core, and it is possible to easily manufacture a honeycomb core in which at least one open end side end surface of a plurality of hollow columnar cells has a curved shape.

  Since it has the adhesive application means which applies an adhesive agent to the joint fixing part of the plates by the joint fixing means, the joint fixation between the plates can be performed easily and reliably.

  A plurality of plates stacked in the plate thickness direction are joined and fixed at joint portions intermittently provided in one direction, and non-joint fixing portions other than the joint fixing portions are separated from each other between adjacent plates to be hollow. In a method for manufacturing a honeycomb core, in which a plurality of columnar cells are formed and a curved surface portion is provided on an end face of at least one of the open ends of the cells, one of the cells is adjacent to each other of the stacked plates. The plate base is formed such that a state in which the end edges on the opening end side of each other and a state in which the end edges on the other opening end side are connected are alternately formed along the stacking direction of the plates. A plate continuous body is formed by cutting the material to connect the edge portions of the plurality of plates, and an adhesive is applied intermittently along the edge portion on the surface of the plate continuous body, Edge Folding the plurality of plates alternately with the connected portion as a boundary, laminating in the plate thickness direction and bonding and fixing adjacent plates with the adhesive, non-bonding fixing sites other than this bonding fixing site, Since the cells are formed by being separated from each other between adjacent plates, it is not necessary to perform another processing such as forming a protrusion on the plate itself, or to perform a cutting process on the honeycomb core. It is possible to easily and continuously manufacture a honeycomb core in which the end surface on the opening end side of at least one of the plurality of cells has a curved shape.

  A plurality of plates stacked in the plate thickness direction are joined and fixed at joint portions intermittently provided in one direction, and non-joint fixing portions other than the joint fixing portions are separated from each other between adjacent plates to be hollow. In a honeycomb core manufacturing apparatus in which a plurality of columnar cells are formed and a curved surface portion is provided on an end face of at least one of the open ends of the cells, one of the plurality of stacked plates is adjacent to each other. The plurality of the plurality of open end sides are connected to each other along the stacking direction of the plates, and the end edges on the other open end side are connected to each other. Cutting means for cutting the plate base material to form a plate continuum connecting the edges of the plate, and an adhesive is intermittently applied along the edge on the surface of the plate continuum. Contact Bonding and fixing means for bending the plurality of plates alternately at the boundary between the two edge portions, and laminating them in the plate thickness direction, and bonding and fixing adjacent plates with the adhesive And separation means for separating non-joined parts other than the joined parts joined and fixed by the joint fixing means between adjacent plates, respectively, so that the edge of the plate corresponding to the open end side of the cell The plate base material is cut so that the parts are connected to each other, and an adhesive is applied intermittently along the edge portion of the surface of the plate base material, with the edge portion as a boundary. The plates are alternately bent and stacked in the thickness direction, and adjacent plates are joined with the adhesive, and non-joined portions other than the joined portions are drawn between adjacent plates. Thus, there is no need to perform another process such as forming a protrusion on the plate itself or to perform a cutting process on the honeycomb core, and at the opening end side of at least one of the plurality of hollow columnar cells. The honeycomb core whose end face has a curved shape can be manufactured easily and continuously.

It is a manufacturing process figure which simplifies and shows the manufacturing method of the honeycomb core concerning the 1st Embodiment of the present invention. (A) is a perspective view showing a dome-shaped three-dimensional curved honeycomb core, and (b) is an explanatory diagram showing a rectangular parallelepiped honeycomb core required when manufacturing the honeycomb core (a) by the conventional method. is there. FIG. 3 is a cross-sectional view showing an end material portion for removing the rectangular parallelepiped honeycomb core of FIG. 2B by cutting. It is explanatory drawing which shows the end material part in the same part as FIG. 3 removed by the cutting | disconnection of the plate base material in 1st Embodiment. It is effect | action explanatory drawing which shows the operation | movement which makes the plate base material after the adhesive agent application process of FIG. 1 an upright state from a horizontal state. FIG. 6 is an operation explanatory diagram illustrating operations after FIG. 5. It is a cut explanatory drawing which shows the notch position in the case of providing a curve-shaped part in the center of the edge part of the lower part side of the plate made into the upright state. FIG. 7 is an operation explanatory diagram illustrating an operation of stacking a plurality of plates in the manufacturing method of FIG. 1. FIG. 9 is an operation explanatory diagram illustrating an operation of pressurizing and transporting a plurality of stacked plates in FIG. 8 to a heat treatment furnace. It is a manufacturing process figure which shows the manufacturing method of the honeycomb core concerning the 2nd Embodiment of this invention. It is a manufacturing process figure which shows the manufacturing method of the honeycomb core concerning the 2nd Embodiment of this invention. It is a top view of a plate continuum at the time of providing a curved-surface part in both opening end faces of a honeycomb core manufactured by a manufacturing method of a 2nd embodiment. FIG. 13 is an explanatory diagram illustrating a state where the plate continuum of FIG. 12 is separated for each sheet. It is a front view of the plate provided with the recessed part which enters into the inner side which can be manufactured with the manufacturing method of 2nd Embodiment. It is a conventional honeycomb manufacturing method process drawing. It is explanatory drawing which shows the expansion | deployment operation | work with respect to the laminated body which consists of several plates after the adhesive application position in the manufacturing method of FIG. 15, and the joining fixation by the apply | coated adhesive. It is a flowchart of another conventional honeycomb manufacturing method.

Explanation of symbols

11 cell 27 belt-like plate base material 29,99 cutter (cutting means)
31, 97 Plate 33, 105 Adhesive 35, 103, 104 Adhesive application roller (adhesive application means)
45,117 Heat treatment furnace (joint fixing means)
71 Pressurizing device (bonding fixing means)
95 Plate base material

Claims (7)

  In a method for manufacturing a honeycomb core comprising a plurality of hollow columnar cells having both ends open, and a curved surface portion on at least one open end side of the cell, each of the plurality of plates constituting the honeycomb core The edge corresponding to the curved surface portion is cut into a curved shape, the cut plates are stacked in the thickness direction, and the adjacent plates are joined at intermittent positions along the curved shape. A method for manufacturing a honeycomb core, wherein the cells are formed by fixing and separating non-bonding fixing parts other than the bonding fixing parts between adjacent plates.   A belt-shaped plate base material is transported in the longitudinal direction, the plate base material is cut into the curved shape along the transport direction, and the plate base material cut into the curved shape has a specified length in the transport direction. The method for manufacturing a honeycomb core according to claim 1, wherein the plate is cut to form the plate.   The method for manufacturing a honeycomb core according to claim 1 or 2, wherein the plates are bonded and fixed using an adhesive.   In a honeycomb core manufacturing apparatus including a plurality of hollow columnar cells having both ends open, and a curved surface portion on an end surface on at least one open end of the cell, each of the plurality of plates constituting the honeycomb core A cutting means for cutting the edge corresponding to the curved surface shape portion into a curved shape, and a plurality of plates cut by the cutting means are stacked in the thickness direction, and adjacent at intermittent positions along the curved shape. A separation fixing unit that bonds and fixes plates to be bonded together and a non-bonding fixing site other than the bonding and fixing sites of a plurality of plates that are bonded and fixed by the bonding and fixing unit are separated between adjacent plates to form the cell. And a means for manufacturing a honeycomb core.   The apparatus for manufacturing a honeycomb core according to claim 4, further comprising an adhesive application unit that applies an adhesive to a bonding and fixing portion between the plates by the bonding and fixing unit.   A plurality of plates stacked in the plate thickness direction are joined and fixed at joint portions intermittently provided in one direction, and non-joint fixing portions other than the joint fixing portions are separated from each other between adjacent plates to be hollow. In a method for manufacturing a honeycomb core, in which a plurality of columnar cells are formed and a curved surface portion is provided on an end face of at least one of the open ends of the cells, one of the cells is adjacent to each other of the stacked plates. The plate base is formed such that a state in which the end edges on the opening end side of each other and a state in which the end edges on the other opening end side are connected are alternately formed along the stacking direction of the plates. A plate continuous body is formed by cutting the material to connect the edge portions of the plurality of plates, and an adhesive is applied intermittently along the edge portion on the surface of the plate continuous body, Edge Folding the plurality of plates alternately with the connected portion as a boundary, laminating in the plate thickness direction and bonding and fixing adjacent plates with the adhesive, non-bonding fixing sites other than this bonding fixing site, A method for manufacturing a honeycomb core, wherein the cells are formed by being separated from each other between adjacent plates.   A plurality of plates stacked in the plate thickness direction are joined and fixed at joint portions intermittently provided in one direction, and non-joint fixing portions other than the joint fixing portions are separated from each other between adjacent plates to be hollow. In a honeycomb core manufacturing apparatus in which a plurality of columnar cells are formed and a curved surface portion is provided on an end surface of at least one opening end of the cell, one of the cells is adjacent to each other of the stacked plates. The plurality of the plurality of open ends are connected to each other along the stacking direction of the plates, and the plurality of open ends are connected to each other along the stacking direction of the plates. Cutting means for cutting the plate base material to form a plate continuum connecting the edges of the plate, and an adhesive is intermittently applied along the edge on the surface of the plate continuum. Contact Bonding and fixing means for bending the plurality of plates alternately at the boundary between the edges of the both ends, and laminating them in the plate thickness direction, and bonding and fixing adjacent plates with the adhesive And a honeycomb core manufacturing apparatus characterized by having separation means for separating non-joined parts other than the joined parts joined and fixed by the joining and fixing means between adjacent plates.

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