JP2007325990A - Method for manufacturing honeycomb structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a honeycomb structure which is manufactured by superimposing a corrugated plate on a flat plate and winding the obtained superimposed material and the deformation of which is prevented by press-fitting the manufactured honeycomb structure in a vessel and holding the press-fitted honeycomb structure there satisfactorily. <P>SOLUTION: A belt 53 with dividers is rotated while being synchronized with the movement of the corrugated plate 9D and dividers 55, 57, 59, 61 arranged at predetermined intervals on the outer periphery of the belt 53 with dividers are made to get in the valley parts of the corrugated plate 9D successively in such a state that a portion being the edge of the corrugated plate 9D is fixed/held by an end holding tool 63. As a result, the corrugated plate 9D is stretched successively between any of dividers 55, 57, 59, 61 and the end holding tool 63 so that the pitch and height of a corrugated shape of the corrugated plate are made wider and lower stepwise and respectively and finally the edge of the corrugated plate 9D has an almost flat plate-like shape. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a honeycomb structure in which corrugated plates and flat plates are overlapped and wound into a spiral shape.

  For vehicles equipped with an internal combustion engine such as an automobile, an exhaust purification device for removing harmful components contained in exhaust gas is known which has a structure in which a honeycomb structure carrying a catalyst is accommodated in a container. (For example, see Patent Document 1 below).

As a honeycomb structure, for example, a metal carrier manufactured by overlapping and winding a metal corrugated plate and a flat plate is known. When a honeycomb structure made of this metal carrier is accommodated in a container, the honeycomb structure is known. Is performing normal press-fitting.
JP 2004-36398 A

  By the way, when the above corrugated sheet and flat plate are overlapped and wound, a step is formed in the circumferential direction by the wave height of the corrugated sheet at the winding end on the outer peripheral side of the honeycomb structure. When the body is press-fitted into the container, the metal honeycomb structure is locally deformed due to the step, and this deformation propagates to the center.

  The honeycomb structure deformed in this way is different from the original design shape, and when used as an exhaust purification device, the exhaust purification performance is deteriorated.

  On the other hand, Patent Document 1 described above describes that a buffer member is interposed between the honeycomb structure and the container, but the honeycomb structure here is made of ceramic and has a cross-section. It is substantially circular and does not have a step on the outer periphery as in the above-described honeycomb structure made of a metal carrier. Therefore, a buffer member having a constant thickness over the entire periphery is used.

  When such a constant thickness buffer member is applied to a metal carrier having a step on the outer peripheral portion, the buffer member cannot fully absorb the step portion, and the honeycomb structure made of the metal carrier is insufficiently held, As an exhaust purification device, the reliability is reduced.

  Here, it is conceivable to change the thickness of the buffer member according to the level difference, but in that case, an extra work such as positioning of the buffer member and the honeycomb structure is required, and workability is deteriorated. In addition, the number of parts is increased due to the use of the buffer member.

  Therefore, the present invention has an object to prevent deformation of the honeycomb structure while sufficiently holding the honeycomb structure manufactured by overlapping and winding the corrugated plate and the flat plate into the container. .

  The present invention provides a method for manufacturing a honeycomb structure in which corrugated plates and flat plates are overlapped and wound into a spiral shape, and the vicinity of a winding end portion on the outer peripheral side of the corrugated plate and the flat plate of the honeycomb structure, The most important thing is that the wave pitch of the corrugated sheet is increased toward the winding end and the wave height is decreased toward the winding end by pulling the corrugated sheet in the length direction corresponding to the winding direction. Features.

  According to the present invention, the wave pitch of the corrugated sheet is increased by pulling the corrugated sheet in the length direction corresponding to the winding direction of the corrugated sheet and the flat plate on the outer peripheral side of the honeycomb structure. Since the wave height is made smaller toward the winding end portion side, the step at the outer winding end portion becomes smaller in the honeycomb structure, and a honeycomb structure with a small step is formed on the outer periphery portion. Even if it is press-fitted into a container and its holding is sufficient, deformation of the honeycomb structure can be prevented, performance deterioration when used as an exhaust purification device can be prevented, and the honeycomb structure can be placed in the container. Since the buffer member for housing is unnecessary, it is possible to prevent an increase in the number of parts and a deterioration in assembling workability.

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

  FIG. 1 is a simplified overall configuration diagram showing an apparatus for manufacturing a honeycomb structure according to an embodiment of the present invention. The honeycomb structure manufacturing apparatus supplies a flat plate 3 from a flat plate supply stand 1 to a winding stand 5 as a winding unit, and at the same time, from a corrugated sheet material supply stand 7 installed on the opposite side of the flat plate supply stand 1. The sheet material 9 is supplied to the take-up stand 5 as a corrugated sheet 15 through a corrugated sheet forming machine 11 and a winding edge forming apparatus 13.

  The flat plate supply stand 1 is formed by winding a flat plate 3 as a coil material around a core portion 19 that is rotatably installed at the upper end of a leg portion 17, and a flat plate is formed by a pair of pinch rollers 21 having a drive mechanism (not shown). By feeding out, the core part 19 rotates in the direction of arrow A in the figure, and the coil material is supplied to the winding stand 5 via the guide roller 23.

  The corrugated material supply stand 7 is formed by winding a corrugated material 9 made of a flat plate similar to the flat plate 3 around a core portion 27 that is rotatably installed at the upper end of the leg portion 25 as a coil material. The coil material 27 is supplied to the corrugated sheet forming machine 11 by rotating it in the direction of arrow B in the figure by a drive mechanism (not shown).

  The winding stand 5 that winds up the flat plate 3 and the corrugated plate 15 is provided on the winding core portion 31 that is installed at the upper end portion of the leg portion 29 so as to be rotatable in the direction of arrow C in the drawing by a driving mechanism (not shown). The honeycomb structure 71 (to be described later) becomes a metal carrier in which the corrugated plates 15 and the flat plates 3 are alternately overlapped by winding the corrugated plates 15 from the lower side and winding the corrugated plates 15 from the upper side in a spiral shape. 11A) is manufactured.

  The corrugated sheet forming machine 11 forms the corrugated sheet material 9 made of a flat plate in order to the corrugated sheet 15 from the upstream side in the feeding direction of the corrugated sheet material 9, the forming roll unit 33, the pitch filling roll unit 35, The shaping roll unit 37 is sequentially installed.

  As shown in detail in FIG. 2, the forming roll unit 33 includes a pair of upper and lower forming rolls 33 a and 33 b that rotate synchronously, and the outer peripheral surfaces of these forming rolls 33 a and 33 b are illustrated in FIG. 3. As shown, a plurality of molded teeth 330a and 330b are formed. The corrugated sheet material 9 is supplied as shown in FIG. 3 by fitting the formed teeth 330a and 330b to each other at predetermined intervals and supplying the corrugated sheet material 9 between the rolls while being driven to rotate in the directions of arrows D and E in FIG. Is formed into a first corrugated sheet 9A as shown in FIG.

  The pitch filling roll unit 35 includes a pair of upper and lower pitch filling rolls 35a and 35b that rotate synchronously, and forming teeth 350a and 350b are formed on the outer peripheral surfaces of the pitch filling rolls 35a and 35b, respectively, as shown in FIG. is doing. The corrugated sheet 9A discharged from the upstream forming roll section 33 is temporarily dammed on the inlet side of the pitch filling roll section 35, thereby forming a second corrugated sheet 9B in which the corrugated sheet tops are pressed against each other. .

  In this second wave shape, each corrugated plate top is substantially semicircular. In this state, when the pitch filling rolls 35a and 35b are rotationally driven in the directions of arrows F and G in FIG. 2, the crests of the forming teeth 350a and 350b enter between the crests that are pressed, and the troughs are crests. The tops of the corrugated plates are separated from each other while holding down the entire surface. Accordingly, the corrugated plate tops are separated from each other on the exit side, and a corrugated sheet 9C having a third corrugated pitch wider than the second corrugated shape is obtained.

  Here, if the top of the corrugated sheet is moved while being partially pressed, the corrugated sheet 9B may be deformed. However, in the present embodiment, as shown in FIG. 4, the corrugated plate tops are separated from each other while pressing the corrugated plate tops over the entire surface, so that the deformation of the corrugated plate 9 </ b> B can be prevented.

  The shaping roll unit 37 includes a pair of upper and lower shaping rolls 37a and 37b that rotate synchronously in the directions of arrows H and I in FIG. 2, and the outer circumferential surfaces of these shaping rolls 37a and 37b are as shown in FIG. And forming teeth 370a and 370b, respectively. The crest portions of the forming teeth 370a and 370b enter between the top portions of the corrugated sheet 9C formed in the third corrugated shape and pull up the corrugated sheet 9C, so that the corrugated sheet pitch is widened.

  Here, in consideration of the elastic region of the corrugated sheet 9C, the corrugated sheet pitch is pulled up to be wider than the target value. The corrugated sheet 9D (corresponding to the corrugated sheet 15 in FIG. 1) discharged from the shaping roll unit 37 is formed into a final target corrugated shape by the expanded corrugated sheet pitch being contracted by elastic force, that is, springback. Is done.

  In addition, between the forming roll part 33 and the pitch filling roll part 35, and between the pitch filling roll part 35 and the shaping roll part 37, the thickness direction and the width direction of the corrugated plates 9A, 9B, 9C are skewed. While suppressing, the guide part which is not shown in figure for isolate | separating corrugated sheet 9A, 9B, 9C from the shaping | molding tooth formed in the roll of each part is arrange | positioned.

  Next, the winding end part forming machine 13 will be described. FIG. 6 is a front view showing the entire rolled-up end forming machine 13 in a simplified manner. The rolled-up end forming machine 13 includes a divider driving unit 39 and an end holding and cutting unit 41 installed on the upstream side thereof. And each.

  As shown in an enlarged view in FIG. 7, the divider drive unit 39 includes a divider-equipped belt 53 as a moving body that is wound around the drive roller 43 and the other four rollers 45, 47, 49, and 51 to rotate. The four dividers 55, 57, 59, 61 as the locking members are attached to the outer periphery of the belt 53 with divider.

  The dividers 55, 57, 59, 61 are constituted by plate-like members having a width dimension (width in a direction perpendicular to the paper surface in FIG. 7) substantially equal to the width dimension of the corrugated sheet material 9 (corrugated sheet 15). The tip is tapered so that it can be easily inserted into the valley of the corrugated plate 15. The dividers 55, 57, 59, 61 are attached at appropriate intervals in a region that is approximately half the total length of the belt with divider 53.

  As shown in FIG. 7, the belt with divider 53 is wound around the drive roller 43 and the other four rollers 45, 47, 49, 51 so as to have a substantially rectangular shape that is long in the moving direction of the corrugated plate 15 when viewed from the front. Yes. At this time, the driving roller 43 is installed on the upper right side in FIG. 7 and the other rollers 51 and 45 are installed on the lower right side and the upper left side, respectively, and two other rollers 47 and 49 are installed on the lower left side. Is installed.

  One of the two rollers 47, 49 in the lower left portion is located immediately below the upper left roller 45, and is located on the upper side farther from the corrugated plate 15 than the lower right roller 51. The other roller 49 out of the two rollers 47 and 49 is positioned in the vicinity of the roller 47 between the roller 47 and the lower right roller 51, and in the vertical direction in FIG. Are in the same position.

  The end holding and cutting unit 41 installed on the upstream side of the divider driving unit 39 is disposed close to the end holding tool 63 as a fixing unit for holding the corrugated sheet 9D and the downstream side of the end holding tool 63. Each cutting tool 65 is provided.

  The end holder 63 includes an upper convex member 67 and a lower concave member 69 in FIG. 6 with the corrugated sheet 9D interposed therebetween, and the convex member 67 and the concave member 69 move closer to each other. The corrugated sheet 9D is fixedly held by fitting. On the other hand, in the cutting tool 65, the cutting blade 70 moves closer to the corrugated plate 9D and cuts the corrugated plate 9D.

  Next, the operation will be described. As shown in FIG. 1, the flat plate 3 is supplied from the flat plate supply stand 1 to the take-up stand 5, and at the same time, the corrugated sheet material 9 is supplied from the corrugated material supply stand 7 through the corrugated plate forming machine 11 and the rolled-up end forming machine 13. By supplying the corrugated sheet 15 to the winding stand 5, the corrugated sheet 15 and the flat plate 9 are alternately overlapped and wound in a spiral shape to manufacture the honeycomb structure 71.

  At this time, the part where the winding amount of the flat plate 3 and the corrugated plate 15 (the corrugated plate 9D) at the winding stand 5 is set to a predetermined amount near the winding end, and a constant wave number is set to the end side. Is detected by a sensor (not shown), and when this detection is performed, the corrugated sheet forming operation by the corrugated sheet forming machine 11 is stopped. At this time, the supply of the corrugated sheet material 9 to the corrugated sheet forming machine 11 is stopped, but the supply of the flat plate 3 from the flat plate supply stand 1 and the winding work of the flat plate 3 and the corrugated sheet 15 at the winding stand 5 are performed. Will continue.

  In addition, the part which set the fixed wave number to the termination | terminus side further from the position where the winding amount of the flat plate 3 and the corrugated sheet 15 (corrugated sheet 9D) in the winding stand 5 became the prescribed amount near the winding termination point. The detecting operation can be performed by, for example, an encoder that measures the number of rotations of a roll shaft (not shown) coaxial with the forming roll 33a.

  After the corrugated sheet forming operation by the corrugated sheet forming machine 11 is stopped, the corrugated sheet 9D is held by the end holder 63 and the driving roller 43 of the divider driving unit 39 is driven as shown in FIG. Then, the divider-equipped belt 53 is rotated in the direction indicated by the arrow J so as to be synchronized with the movement of the corrugated plate 9D. At this time, the divider-equipped belt 53 before the start of rotational movement is such that all of the four dividers 55, 57, 59, 61 provided in almost half of the area are located away from the corrugated plate 9 </ b> D, and the rotational movement direction The stop position is set in advance so that the divider 55 located at the foremost part first enters the trough of the corrugated plate 9D.

  The timing of the operation of holding the corrugated plate 9D of the end holder 63 and the operation of the divider 55 entering the valley of the corrugated plate 9D is immediately after the end holder 63 holds the corrugated plate 9D. May enter the trough, and conversely, immediately after the divider 55 enters the trough, the end holder 63 may hold the corrugated sheet 9D, and may perform these operations simultaneously. .

  When the divider 55 moves with the movement of the corrugated plate 9D in a state where the divider 55 enters the trough of the corrugated plate 9D as shown in FIG. 8A, the corrugated plate 9D between the divider 55 and the end holder 63 is stretched. As a result, the wave pitch of the corrugated sheet increases. In the state where the wave pitch is expanded, as shown in FIG. 8B, the next divider 57 enters the valley portion of the corrugated plate 9D, so that the first pitch where the wave pitch is expanded between the dividers 55 and 57. An enlarged portion P is formed.

  From the state of FIG. 8 (b), when the corrugated plate 53D further moves and the divider-equipped belt 53 rotates, the corrugated plate 9D between the divider 57 and the end holder 63 is now stretched to corrugate the corrugated plate. The 9D wave pitch is further expanded. With this wave pitch further expanded, the next divider 59 enters the valley of the corrugated plate 9D as shown in FIG. 9A, so that the wave pitch between the dividers 57 and 59 is further expanded. A 2-pitch enlarged portion Q is formed. At this time, the divider 55 that first enters the valley of the corrugated sheet 9D has moved to a position away from the corrugated sheet 9D.

  From the state of FIG. 9 (a), when the corrugated plate 53D further moves and the divider-equipped belt 53 rotates, this time, the corrugated plate 9D between the divider 59 and the end holder 63 is stretched to corrugate the corrugated plate. The 9D wave pitch is further expanded. In a state where the wave pitch is further expanded, as shown in FIG. 9B, the next divider 61 enters the valley of the corrugated plate 9D, so that the wave pitch is further expanded between the dividers 59 and 61. A 3-pitch enlarged portion R is formed. At this time, the divider 57 has moved to a position away from the corrugated plate 9D.

  Since each of the dividers 55, 57, 59, 61 has a tapered shape with a tapered tip, the divider 55, 57, 59, 61 smoothly enters the valley without crushing the peak of the corrugated plate 9D.

  9B, when the corrugated plate 53D is further moved and the divider-equipped belt 53 is rotated, the divider 61 reaches the vicinity of the lower right roller 51 as shown in FIG. As shown in FIG. 10B, the plate 9D is stretched in a substantially flat plate shape. In this state, the cutting blade 70 descends to cut the flat corrugated plate 9D.

  After the cutting, the holding of the corrugated plate 9D by the end holder 63 is released, and in this state, the corrugated plate 9D is wound around the winding stand 5 together with the flat plate 3, and the flat plate 3 also coincides with the end of the corrugated plate 9D. As described above, by cutting with a cutting tool (not shown), the end portions of the flat plate 3 and the corrugated plate 9D formed into a flat plate shape are superposed on the winding stand 5.

  FIG. 11A is a cross-sectional view of the honeycomb structure 71 manufactured by winding in this way. Since the corrugated plate 15 (the corrugated plate 9D) has a flat plate shape, the corrugated plate 15 (the corrugated plate 9D) and the end portions of the flat plate 3 are overlapped with each other. The difference in level is hardly generated. In addition, since the height of the corrugated sheet 15 (corrugated sheet 9D) decreases stepwise along the circumferential direction from the rolled-up end 73, the outer shape of the honeycomb structure 71 as a whole is stepped along the circumferential direction. It becomes almost circular without any.

  On the other hand, as shown in FIG. 11 (b), when the corrugated sheet 150 is a honeycomb structure 710 having a corrugated shape with the same wave height over the entire length including the rolled-up end 730, the rolled-up end 730 Thus, a large step K corresponding to the wave height is generated.

  FIG. 12 shows the relationship between the wave pitch fp and the wave height fh at the same development length of the corrugated plate. By stretching the corrugated plate as described above, the wave pitch fp becomes (a), (b), It can be seen that the wave height fh increases in the order of (c), and accordingly the wave height fh decreases in the order of (a), (b), (c).

  As shown in FIG. 11 (a), the honeycomb structure 71 having a substantially round outer shape without a step at the rolled-up end 73 has a metal cylinder as shown in FIG. The corrugated sheet 15 and the flat plate 3 are diffusion-bonded by press-fitting into the container 75 and heated in a vacuum state, and the cylindrical container 75 is brazed and joined.

  Since the honeycomb structure 71 described above has almost no step at the outer peripheral portion, it can prevent local deformation when it is press-fitted into the cylindrical container 75, and the deformation propagates to the central portion. Such a phenomenon will not occur.

  The honeycomb structure 71 press-fitted and fixed to the cylindrical container 75 in this manner is fitted and fixed together with the cylindrical container 75 between the inlet diffuser 77 and the outlet diffuser 79 on the exhaust passage in the automobile as shown in FIG. Therefore, it is used as an exhaust purification device.

  When used as an exhaust emission control device, since the honeycomb structure 71 that prevents deformation is used, a reduction in exhaust purification performance can be prevented, and when the honeycomb structure 71 is held in the cylindrical container 75. Further, since the buffer member for absorbing the step is not necessary, it is possible to prevent an increase in the number of parts and a deterioration in assembling workability.

  As an example of the relationship between the wave height fh of the corrugated plate 9D and the wave pitch fp, before the wave pitch is enlarged, fh = 2 mm and fp = 1.6 mm, and the first pitch enlarged part shown in FIG. P is fh = 1.5 mm, fp = 3.1, and the second pitch expansion portion Q shown in FIG. 9A is fh = 1.0 mm, fp = 3.8 mm, and the second pitch shown in FIG. The 3-pitch enlarged portion R has fh = 0.5 mm and fp = 4.2 mm.

  By the way, in recent years, in order to improve the exhaust gas purification performance, a corrugated plate as shown in FIG. 15A is being used. The corrugated shape in FIG. 15A has a wave height fh higher than the wave pitch fp. It is also bigger. That is, fh / fp> 1. On the other hand, in the waveform of FIG. 15B, fh / fp <1, and the wave height fh is made smaller than the wave pitch fp.

  FIG. 16 shows a part of the honeycomb structure in which the wave height fh is larger than the wave pitch fp as described above, and the inside of the cell 81 surrounded by the corrugated plate 15 and the flat plate 3 is exhausted. The exhaust gas is purified by flowing.

  At this time, a wasteful catalyst that accumulates in the vicinity of the contact portion between the corrugated plate 15 and the flat plate 3 has a wave height fh larger than the wave pitch fp so that the rising portion of the corrugated plate 15 is substantially perpendicular to the flat plate 3. However, the wave height fh is made smaller than the wave pitch fp, and the rising portion of the corrugated plate 15 is made almost parallel to the flat plate 3. For this reason, the former honeycomb structure can effectively utilize the catalyst to improve the exhaust performance and reduce the cost.

  In particular, the relationship between the corrugated plate height fh and the corrugated plate pitch fp is expressed as fh / fp = 1. In the case of 5, the representative length (equivalent diameter) governing the heat transfer coefficient can be made smaller than the current corrugated sheet, the carrier is likely to be warmed, and the time until the catalyst activation at the engine start can be shortened. Therefore, the purification performance in the cold region can be improved.

  In this way, when the wave height fh is made larger than the wave pitch fp in order to improve the exhaust purification performance, the step 730 at the outer peripheral end of the honeycomb structure 710 in FIG. 11B becomes larger. It becomes more effective by eliminating the step so that the wave height of the corrugated plate 15 becomes lower toward the winding end portion 73 as in this embodiment.

1 is a simplified overall configuration diagram showing an apparatus for manufacturing a honeycomb structure according to an embodiment of the present invention. FIG. 2 is a front view showing details of a corrugated sheet forming machine in the honeycomb structure manufacturing apparatus of FIG. 1. It is a partial front view which shows the detail of the forming roll part in the corrugated sheet forming machine of FIG. It is a partial front view which shows the detail of the pitch filling roll part in the corrugated sheet forming machine of FIG. It is a partial front view which shows the detail of the shaping roll part in the corrugated sheet forming machine of FIG. It is a front view which shows the whole winding end part molding machine of FIG. It is the front view to which the divider drive part in the winding edge part molding machine of FIG. 6 was expanded. FIG. 7 is a diagram for explaining the operation of the winding end portion forming machine of FIG. 6, wherein (a) shows a state where the first divider enters the trough portion of the corrugated sheet while the corrugated sheet is held by the end holder; Shows a state in which the first divider expands into the trough portion of the corrugated plate to form the first pitch enlarged portion. FIG. 7 is an explanatory diagram of the operation of the hoisting end forming machine of FIG. 6, wherein (a) shows a state in which the next divider further enters the trough portion of the corrugated plate from the state of FIG. (B) shows a state in which the next divider further enters the trough portion of the corrugated plate to form the third pitch enlarged portion. FIG. 7 is a diagram for explaining the operation of the winding end portion forming machine in FIG. 6, where (a) shows a state in which the end portion of the corrugated sheet is stretched almost flat by the last divider, and (b) shows a cutting tool in the state of (a). The state which has cut | disconnected the corrugated sheet is shown. (A) is sectional drawing of the honeycomb structure manufactured with the manufacturing apparatus of FIG. 1, (b) is sectional drawing of the conventional honeycomb structure. It is explanatory drawing which shows the relationship between the wave pitch and wave height in the same expansion | deployment length of a corrugated sheet, and shows a mode that a wave pitch expands and a wave height becomes low in order of (a), (b), (c). FIG. 12 is an explanatory diagram showing a state in which the honeycomb structure of FIG. 11A is press-fitted into a metal cylindrical container. FIG. 3 is a cross-sectional view showing a state in which a honeycomb structure press-fitted into a cylindrical container is fitted and fixed between an inlet diffuser and an outlet diffuser on an exhaust passage in an automobile. It is explanatory drawing which shows the relationship between the wave height of a corrugated sheet, and a wave pitch, (a) makes wave height larger than wave pitch, (b) makes wave height smaller than wave pitch. FIG. 16 is a front view showing a part of a honeycomb structure using the corrugated sheet of FIG.

Explanation of symbols

3 Flat plate 5 Winding stand (winding part)
15 Corrugated sheet 53 Divider belt (moving body)
55, 57, 59, 61 Divider (locking member)
63 End holder (fixed part)
71 Honeycomb structure 73 Winding end of honeycomb structure fp Corrugated sheet pitch fh Corrugated sheet height

Claims (3)

  In the method for manufacturing a honeycomb structure in which the corrugated plate (15) and the flat plate (3) are overlapped and wound into a spiral shape, the corrugated plate (15) and the flat plate (3) of the honeycomb structured body (71). The wave pitch (fp) of the corrugated plate (15) is wound up by pulling the corrugated plate (15) in the length direction corresponding to the winding direction of the vicinity of the coiled end portion (73) on the outer peripheral side. (73) A method for manufacturing a honeycomb structured body, wherein the wave height (fh) is increased toward the winding end (73) side by increasing the side.   For the winding portion (5) for winding the corrugated plate (15) and the flat plate (3) in a spiral shape, the supply of the corrugated plate (15) is stopped and the vicinity of the portion that becomes the rolled-up end portion (73) is fixed. While fixing by (63), the winding operation of the winding part (5) is continuously performed, and at this time, the corrugated part of the corrugated sheet (15) is moved along the moving direction of the corrugated sheet (15). The locking member (55, 57, 59, 61) provided on the movable body (53) is inserted, and the locking member (55, 57, 59, 61) moves with the movement of the corrugated plate (15). Thus, the wave pitch (fp) of the corrugated plate (15) between the locking member (55, 57, 59, 61) and the fixed portion (63) is increased to reduce the wave height (fh). The method for manufacturing a honeycomb structured body according to claim 1.   A plurality of the locking members (55, 57, 59, 61) are provided at intervals along the moving direction of the movable body (53), and the locking members (55, 57, 59, 61) are By sequentially entering the troughs of the corrugated plate (15), the wave pitch (fp) of the corrugated plate (15) between the locking members (55, 57, 59, 61) and the fixed portion (63). ) In a stepwise manner and the wave height (fh) is lowered in a stepwise manner.

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