Jig, device for manufacturing base material for supporting catalyst, and method for manufacturing base material for supporting catalyst

Abstract

Provided is a jig that is used when manufacturing a base material for supporting a catalyst by pressing a honeycomb body, in which a corrugated plate and a flat plate are wound together, to an outer cylinder. The jig comprises a cylindrical jig body which is disposed at an end of the outer cylinder or in the vicinity thereof when the honeycomb body is pressed into the outer cylinder, and which holds the honeycomb body in a state in which the outer diameter of the honeycomb body is smaller than the inner diameter of the outer cylinder. A plurality of grooves are formed on an inner circumferential surface of the jig body along a pressing direction in which the honeycomb body is pressed.

Description

Jig, catalyst-supporting substrate manufacturing device, and catalyst-supporting substrate manufacturing method

[0001] The present invention relates to a jig used when manufacturing a catalyst-supporting substrate by pressing (pressing) a honeycomb body formed by winding a corrugated sheet and a flat sheet together into an outer cylinder, a manufacturing device for a catalyst-supporting substrate, and a manufacturing method for a catalyst-supporting substrate.

[0002] For example, Japanese Patent Publication No. 2010-17605 discloses the use of a cylindrical jig for squeezing a honeycomb body into an outer tube while pressing it into the outer tube so that the outer diameter of the honeycomb body is smaller than the inner diameter of the outer tube.

[0003] When a cylindrical honeycomb body, which is made by winding a corrugated sheet and a flat sheet together, is pressed into an outer cylinder to manufacture a catalyst support substrate, if a cylindrical jig is used, a large frictional force (contact resistance) is applied between the inner peripheral surface of the jig and the outermost periphery of the honeycomb body. As a result, the corrugated sheet and the flat sheet at the end faces of the honeycomb body may become misaligned when the honeycomb body is pressed into the outer cylinder.

[0004] The present invention aims to provide a jig, a manufacturing apparatus for a catalyst-supporting substrate, and a manufacturing method for a catalyst-supporting substrate that can suppress misalignment between the corrugated plate and flat plate on the end face of a honeycomb body when the honeycomb body is pressed into an outer tube.

[0005] According to one aspect of the present invention, a jig used in manufacturing a catalyst support substrate by pressing a honeycomb body formed by winding a corrugated sheet and a flat sheet together onto an outer cylinder includes a cylindrical jig body that is placed at or near the end of the outer cylinder when pressing the honeycomb body into the outer cylinder, and that holds the honeycomb body in a state where the outer diameter of the honeycomb body is smaller than the inner diameter of the outer cylinder. A plurality of grooves are formed on the inner peripheral surface of the jig body along the pressing direction in which the honeycomb body is pressed.

[0006] According to the present invention, it is possible to provide a jig that can suppress misalignment between the corrugated plate and flat plate on the end face of a honeycomb body when the honeycomb body is pressed into an outer tube, a manufacturing apparatus for a catalyst-supporting substrate, and a manufacturing method for a catalyst-supporting substrate.

[0007] 4A , 4B, 4C, 4D, 4E, 4F, 4G, 4G, 4H ...

[0008] Fig. 1 shows a catalyst-supporting substrate 10 used as a metal catalyst carrier on which a metal catalyst for purifying exhaust gas is supported. The catalyst-supporting substrate 10 shown in Fig. 1 includes an outer cylinder 12 and a honeycomb body 14 having a generally cylindrical appearance and disposed within the outer cylinder 12.

[0009] The outer cylinder 12 is formed as a cylindrical body and is preferably formed from a metal material such as stainless steel.

[0010] 2A and 2B show the honeycomb body 14 and a portion of an apparatus 30 for manufacturing the honeycomb body 14. As shown in Figures 2A and 2B, the honeycomb body 14 is formed by winding together a corrugated sheet 22 and a flat sheet 24. The corrugated sheet 22 and the flat sheet 24 are preferably formed from a metal foil material such as stainless steel.

[0011] The example shown in FIG. 2A is an example in which the outermost periphery is a corrugated plate 22, and the example shown in FIG. 2B is an example in which the outermost periphery is a flat plate 24.

[0012] 2A or 2B, the manufacturing apparatus 30 for the honeycomb body 14 has a pair of rollers 34a, 34b that rotate around axes parallel to each other and are disposed on a base 32. The pair of rollers 34a, 34b are adjacent to each other so as to support the underside of the honeycomb body 14 during manufacturing.

[0013] The manufacturing apparatus 30 for the honeycomb body 14 has a pair of rotating shafts 36a, 36b arranged coaxially above a pair of rollers 34a, 34b. The pair of rotating shafts 36a, 36b can move toward and away from each other and can rotate in the same direction. The manufacturing apparatus 30 for the honeycomb body 14 has the pair of rotating shafts 36a, 36b brought close to each other to sandwich the ends of the corrugated sheet 22 or the flat sheet 24, and rotates the pair of rotating shafts 36a, 36b in the same direction to form the honeycomb body 14 shown in FIG. 2A or 2B in which the corrugated sheet 22 and the flat sheet 24 are stacked on top of each other.

[0014] The manufacturing apparatus 30 for the honeycomb body 14 has a pressing member 38 above a pair of rotation shafts 36a, 36b that prevents the corrugated sheet 22 and flat sheet 24 of the honeycomb body 14 from shifting in position. The pressing member 38 and rollers 34a, 34b apply a load to the honeycomb body 14, thereby preventing the honeycomb body 14 from loosening.

[0015] When the manufacturing apparatus 30 for the honeycomb body 14 starts to manufacture the honeycomb body 14, the distance between the pair of rollers 34a, 34b and the pair of rotating shafts 36a, 36b and the distance between the pressing member 38 and the pair of rotating shafts 36a, 36b is minimum. Then, as the diameter of the honeycomb body 14 increases, the distance between the pair of rollers 34a, 34b and the pressing member 38 and the pair of rotating shafts 36a, 36b increases.

[0016] In addition, the manufacturing apparatus 30 for the honeycomb body 14 adjusts the diameter of the honeycomb body 14 to a predetermined diameter by adjusting the positional relationship between the rotating shafts 36a, 36b and the pair of rollers 34a, 34b, and the positional relationship between the rotating shafts 36a, 36b and the pressing member 38.

[0017] The honeycomb body 14 is held at a predetermined diameter by the pair of rollers 34a, 34b and the pressing member 38. In this state, the manufacturing device 30 for the honeycomb body 14 separates the pair of rotating shafts 36a, 36b from each other, thereby removing the pair of rotating shafts 36a, 36b from the honeycomb body 14.

[0018] FIG. 3 shows a schematic diagram of a manufacturing apparatus 50 for the catalyst-supporting substrate 10 according to this embodiment.

[0019] As shown in Figure 3, the manufacturing apparatus 50 for the catalyst-supporting substrate 10 includes a jig 52 used when manufacturing the catalyst-supporting substrate 10 by pressing (pressing) the honeycomb body 14, which is formed by winding together a corrugated plate 22 and a flat plate 24, into an outer tube 12; a holding device 54 for holding the honeycomb body 14; a first transfer device 56 for transferring the honeycomb body 14 held by the holding device 54 inside the jig 52; a second transfer device 58 for transferring an integrated member in which the honeycomb body 14 has been temporarily inserted into the jig 52 toward the outer tube 12; a pressing device 60 for pressing the honeycomb body 14 temporarily inserted into the jig 52 into the outer tube 12 through the jig 52; and a support 62 for supporting the outer tube 12 so that the central axis of the outer tube 12 is aligned or approximately aligned in the vertical direction.

[0020] The manufacturing apparatus 30 for the honeycomb body 14 described above is used as a part of the manufacturing apparatus 50 for the catalyst-supporting substrate 10 .

[0021] Fig. 4A shows a cross-sectional view including the central axis of the jig 52. Fig. 4B shows a top view of the jig 52 as seen from the direction indicated by reference numeral 4B in Fig. 4A. Fig. 4C shows an enlarged view of the position indicated by reference numeral 4C in Fig. 4B.

[0022] 4A, the jig 52 has a cylindrical jig body 72. That is, the jig body 72 is formed to have a cylindrical body.

[0023] The jig main body 72 comprises a cylindrical body 82 that forms a cylindrical space inside, a temporary holding portion 84 that protrudes from one open end 82a of the cylindrical body 82 and holds the end 14a of the honeycomb body 14 in a temporarily inserted state, and a protruding portion 86 that protrudes from the other open end 82b of the cylindrical body 82 and has an abutment portion 86a against which the end 12a of the outer tube 12 (the inlet end of the honeycomb body 14) abuts.

[0024] The inner diameter of the cylindrical body 82 is slightly smaller than the inner diameter of the outer cylinder 12 of the catalyst-supporting substrate 10. The outer diameter of the cylindrical body 82 is larger than the outer diameter of the outer cylinder 12 of the catalyst-supporting substrate 10. In addition, the inner diameter of the cylindrical body 82 is slightly smaller than the outer diameter of the honeycomb body 14 manufactured by the manufacturing apparatus 30 for the honeycomb body 14.

[0025] The temporary holding portion 84 has an inner circumferential surface whose inner diameter increases as it moves away from the inner diameter of one open end 82a of the cylindrical body 82 along the axial direction of the cylindrical body 82. The inner circumferential surface of the temporary holding portion 84 is preferably formed as a surface that is convex toward the inside. The inner circumferential surface of the temporary holding portion 84 is formed to have, for example, a radius of approximately 30. The inner circumferential surface of the temporary holding portion 84 may be formed to widen in a generally tapered manner from the one open end 82a of the cylindrical body 82 toward one end 72a of the jig main body 72 (the inlet end 72a of the honeycomb body 14).

[0026] The maximum outer diameter of the temporary holding portion 84 is located at one end 72a of the jig body 72 and is larger than the outer diameter of the honeycomb body 14 manufactured by the manufacturing apparatus 30. The minimum outer diameter of the temporary holding portion 84 is located at one open end 82a of the cylindrical body 82 and is slightly smaller than the outer diameter of the honeycomb body 14 manufactured by the manufacturing apparatus 30. Therefore, the inner peripheral surface of the temporary holding portion 84 can temporarily hold the end portion 14a of the honeycomb body 14 manufactured by the manufacturing apparatus 30.

[0027] The combined length of the temporary holding portion 84 and the cylindrical body 82 is smaller than the distance between the end faces 14 a 1 and 14 b 1 of the honeycomb body 14 .

[0028] The outer diameter of the temporary holding portion 84 is preferably the same as or approximately the same as the outer diameter of the cylindrical body 82, for example.

[0029] The abutting portion 86a of the protrusion 86 forms a step with respect to the inner circumferential surface of the cylindrical body 82 at the other open end 82b of the cylindrical body 82. The inner diameter of the cylindrical body 82 at the other open end 82b of the cylindrical body 82 is smaller than the inner diameter of the outer cylinder 12.

[0030] The inner diameter of the inner peripheral surface of the protrusion 86 is slightly larger than the outer diameter of the outer cylinder 12. Therefore, one end 12a of the outer cylinder 12 abuts against the abutment portion 86a of the protrusion 86.

[0031] The length of the protrusion 86, i.e., the distance between the contact portion 86a of the protrusion 86 and the other end (the outlet end of the honeycomb body 14) 72b of the jig body 72, is shorter than the length of the outer cylinder 12. The length of the protrusion 86 is, for example, about 18 mm.

[0032] For example, the length of the jig 52 is about 75 mm, the length of the cylindrical body 82 is about 54 mm, and the length of the temporary holding portion 84 may be, for example, about 5 mm.

[0033] As an example, the inner diameter of the cylindrical body 82 is approximately 50 mm. The inner diameter of the temporary holding portion 84 on the side opposite the cylindrical body 82 is approximately 54 mm. The inner diameter of the protruding portion 86 on the side opposite the cylindrical body 82 is approximately 54 mm, and the inner diameter of the protruding portion 86 on the side opposite the cylindrical body 82 is approximately 56 mm.

[0034] The outer diameter of the jig 52 is, for example, about 65 mm.

[0035] The outer peripheral surface of the jig body 72 is used as a portion that holds the end 14a of the honeycomb body 14 when it is temporarily inserted into the jig 52, and also as a portion that holds the jig 52 when it is moved toward the outer cylinder 12. For positioning purposes when held, the outer diameter of the protrusion 86 is preferably formed to be smaller than the outer diameter of the cylindrical body 82, for example. Note that the outer diameter of the protrusion 86 may be the same as or approximately the same as the outer diameter of the cylindrical body 82, for example.

[0036] A plurality of grooves 90 are formed on the inner peripheral surface of the cylindrical body 82 and the inner peripheral surface of the temporary holding portion 84 along the pressing direction in which the honeycomb body 14 is pressed. The grooves 90 on the inner peripheral surface of the cylindrical body 82 and the inner peripheral surface of the temporary holding portion 84 are continuous.

[0037] It is preferable that each groove 90 extends straight along the central axis of the jig body 72. It is also preferable that the circumferential pitch of each groove 90 is constant. As an example, the width W of each groove 90 can be 0.25 mm, and the depth (height) D of each groove 90 can be 0.15 mm. The angle between each groove 90 depends on the diameter of the cylindrical body 82 and temporary holding portion 84 of the jig body 72 relative to the honeycomb body 14.

[0038] 5 , assuming that the width W of each circumferentially adjacent groove 90 is constant, when the inner diameter of the cylindrical body 82 of the jig main body 72 is 42 mm, the angle between the grooves 90 is 3.0°, when the inner diameter is 45 mm, the angle between the grooves 90 is 3.0°, and when the inner diameter is 53.5 mm, the angle between the grooves 90 is 2.5°. The multiple grooves 90 reduce the area of ​​the inner circumferential surface of the cylindrical body 82 of the jig main body 72 by, for example, approximately 21% compared to when there are no grooves 90.

[0039] 6 , for example, when using a honeycomb body 14 whose outermost periphery is a corrugated sheet 22, it is preferable that the circumferential pitch P0 of the grooves 90 of the jig body 72 be the same as or smaller than the pitch P1 of the corrugated sheet 22. In other words, it is preferable that the number of grooves 90 be the same as or greater than the number of peak portions 22a on the outermost periphery of the corrugated sheet 22. Therefore, the grooves 90 can reduce the possibility that the peak portions 22a on the outermost periphery of the corrugated sheet 22 will come into contact with the inner circumferential surface of the cylindrical body 82.

[0040] The grooves 90 shown in Fig. 4C and Fig. 6 are formed by wire electric discharge machining, for example. The grooves 90 have a generally rectangular shape, but may also have a generally V-shape as shown in Fig. 7A or a generally U-shape (semicircular) as shown in Fig. 7B.

[0041] The holding device 54 shown in Fig. 3 is formed as, for example, a substantially C-shaped hand that holds the outer peripheral surface of the honeycomb body 14. That is, the holding device 54 includes an actuator that moves the hand. By adjusting the opening amount of the hand of the holding device 54, the outer peripheral surface of the honeycomb body 14 can be held or released.

[0042] The first transfer device 56 is capable of moving the holding device 54. The first transfer device 56 includes an actuator that moves the holding device 54. The first transfer device 56 is capable of moving between a position where the holding device 54 holds the honeycomb body 14 manufactured by the manufacturing apparatus 30 for the honeycomb body 14, and a position where one end 14 a of the honeycomb body 14 held by the holding device 54 is temporarily held by the temporary holding portion 84 of the jig 52.

[0043] The second transfer device 58 includes an actuator that moves the jig 52. The second transfer device 58 is capable of moving the jig 52, with the honeycomb body 14 held in the temporary holding portion 84, so as to fit the jig 52 into the outer cylinder 12. In other words, the second transfer device 58 is capable of moving the jig 52 between a position where the honeycomb body 14 is held in the temporary holding portion 84 of the jig 52 and a position where the abutting portion 86a of the protrusion 86 is abutted against the end portion 12a of the outer cylinder 12.

[0044] The pressing device 60 has a pressing part 60a and includes an actuator that moves the pressing part 60a. The pressing device 60 has the pressing part 60a that can press an end face 14b1 of the honeycomb body 14, including an end 14b opposite to the one end 14a held by the temporary holding part 84 of the jig 52, toward the outer cylinder 12, with the abutting part 86a of the protruding part 86 of the jig 52 abutting against the end 12a of the outer cylinder 12. It is preferable that the pressing surface 60b of the pressing part 60a of the pressing device 60 be formed as a flat surface having a circular outer shape.

[0045] The diameter of the pressing surface 60b of the pressing portion 60a of the pressing device 60 is smaller than the inner diameter of the cylindrical body 82 of the jig 52 and also smaller than the diameter of the end face 14b1 of the other end 14b of the honeycomb body 14. On the other hand, in order to prevent misalignment of the corrugated sheet 22 and the flat sheet 24 at the end face 14b1 of the other end 14b of the honeycomb body 14, it is preferable that the diameter of the pressing surface 60b be as large as possible.

[0046] As shown in FIG. 8, the holding device 54 , the first transfer device 56 , the second transfer device 58 and the pressing device 60 of the manufacturing apparatus 50 for the catalyst-supporting substrate 10 are controlled by a control unit 64 .

[0047] The control unit 64 is, for example, a computer. The control unit 64 includes a processor or integrated circuit (control circuit) including a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or the like, and a storage medium such as a memory. The control unit 64 may include one or more processors or integrated circuits. The control unit 64 executes programs stored in a storage medium or the like to perform processing on the holding device 54, the first transfer device 56, the second transfer device 58, and the pressing device 60.

[0048] An example of manufacturing a honeycomb body 14 manufactured by the manufacturing apparatus 30 for the honeycomb body 14 using the manufacturing apparatus 50 for the catalyst support substrate 10 will be described with reference to Fig. 3. Here, as an example, the outermost periphery of the honeycomb body 14 is assumed to be a corrugated plate 22 as shown in Fig. 2A.

[0049] First, as shown in Fig. 3(A), the holding device 54 of the manufacturing apparatus 50 for the catalyst-supporting substrate 10 grips the outer peripheral surface of the honeycomb body 14 manufactured by the manufacturing apparatus 30 for the honeycomb body 14. In this state, one end 14a of the honeycomb body 14 is inserted into the temporary holding portion 84 of the jig 52. Therefore, as shown in Fig. 3(B), one end 14a of the honeycomb body 14 is temporarily held by the jig 52. Then, the holding device 54 of the manufacturing apparatus 50 for the catalyst-supporting substrate 10 releases the honeycomb body 14. At this time, because the end 14a of the honeycomb body 14 is temporarily held by the temporary holding portion 84 of the jig 52, the outer diameter of the honeycomb body 14 does not change.

[0050] As shown in FIG. 3(C), the manufacturing apparatus 50 for the catalyst-supporting substrate 10 moves the jig 52 toward one end 12a of the outer casing 12, with the other end 12b of the outer casing 12 supported by the support 62. That is, the manufacturing apparatus 50 for the catalyst-supporting substrate 10 moves the honeycomb body 14, which is temporarily held in the temporary holding portion 84, together with the jig 52, so that one end 12a of the outer casing 12 of the catalyst-supporting substrate 10 abuts against the abutting portion 86a of the protrusion 86 on the outlet end 72b side of the jig body 72. At this time, the jig 52 is guided so that the central axis of the jig 52 coincides with the central axis of the outer casing 12, which is previously supported by the support 62. Then, the central axes of the outer casing 12 on the support 62, the jig 52, and the honeycomb body 14 all coincide.

[0051] In this state, as shown in Fig. 3(D), the manufacturing apparatus 50 for the catalyst-supporting substrate 10 presses the end face 14b1 of the other end 14b of the honeycomb body 14, which is opposite to the one end 14a held by the temporary holding portion 84 of the jig 52, with the pressing surface 60b of the pressing portion 60a of the pressing device 60. As shown in Fig. 3(E), the manufacturing apparatus 50 for the catalyst-supporting substrate 10 causes the pressing surface 60b of the pressing portion 60a of the pressing device 60 to pass through the inside of the temporary holding portion 84 of the jig body 72 and the inside of the cylindrical body 82, and reach the other open end 82b of the cylindrical body 82 of the jig body 72. As a result, the honeycomb body 14 is inserted into the inner circumferential surface of the outer cylinder 12. 3(F), the manufacturing apparatus 50 for the catalyst-supporting substrate 10 removes the pressing surface 60b of the pressing portion 60a of the pressing device 60 from the jig main body 72 by passing it through the inside of the cylindrical body 82 of the jig main body 72 and the inside of the temporary holding portion 84. Thereafter, the manufacturing apparatus 50 for the catalyst-supporting substrate 10 operates the second transfer device 58 to move the jig 52 to the position shown in FIG.

[0052] After the catalyst-carrying substrate 10 is manufactured, the inner peripheral surface of the outer cylinder 12 and the honeycomb body 14 are coated with a metal catalyst for purifying exhaust gases.

[0053] 3(C) to 3(E) have been described as examples in which the cylindrical jig body 72 is disposed at the end of the outer cylinder 12 when pressing the honeycomb body 14 into the outer cylinder 12. It is also preferable that the cylindrical jig body 72 be disposed near the end of the outer cylinder 12 when pressing the honeycomb body 14 into the outer cylinder 12.

[0054] When the honeycomb body 14 is placed inside the outer tube 12 through the inside of the temporary holding portion 84 and the inside of the cylindrical body 82, the jig 52 has a plurality of grooves 90 continuously formed on the inner peripheral surface of the temporary holding portion 84 and the inner peripheral surface of the cylindrical body 82, which reduces the contact area between the inner peripheral surface of the temporary holding portion 84 and the inner peripheral surface of the cylindrical body 82 and the outermost corrugated sheet 22 of the honeycomb body 14 compared to when the grooves 90 are not present. For example, as shown in FIG. 6 , although the peaks 22 a of the outermost corrugated sheet 22 of the honeycomb body 14 are partially crushed (depressed), the grooves 90 reduce the contact area between the peaks 22 a of the corrugated sheet 22 and the inner peripheral surface of the temporary holding portion 84 and the inner peripheral surface of the cylindrical body 82 of the jig 52 compared to when the grooves 90 are not present. Therefore, the static friction force between the inner peripheral surface of the temporary holding portion 84 and the inner peripheral surface of the cylindrical body 82 of the jig 52 and the outermost corrugated sheet 22 of the honeycomb body 14 is smaller due to the presence of the grooves 90 compared to when the grooves 90 are not present. In addition, the dynamic friction force between the inner surface of the temporary holding portion 84 of the jig 52 and the inner surface of the cylindrical body 82 and the corrugated sheet 22 at the outermost periphery of the honeycomb body 14 is smaller due to the presence of the grooves 90 than when the grooves 90 are not present.

[0055] Therefore, according to this embodiment, when the honeycomb body 14 is pressed into the outer cylinder 12 through the jig 52 by the pressing device 60, it is possible to suppress misalignment between the corrugated sheet 22 and the flat sheet 24 on the end face of the honeycomb body 14. Therefore, according to this embodiment, it is possible to provide the jig 52, the manufacturing apparatus 50 for the catalyst support substrate 10, and the manufacturing method for the catalyst support substrate 10, which are capable of suppressing misalignment between the corrugated sheet 22 and the flat sheet 24 on the end face of the honeycomb body 14 when the honeycomb body 14 is pressed into the outer cylinder 12.

[0056] The defective rate before using the jig 52 of the manufacturing apparatus 50 for manufacturing a catalyst-supporting substrate 10 according to this embodiment was 1.05%. That is, the defective rate when a catalyst-supporting substrate 10 was manufactured using a jig without a groove 90 was 1.05%. In contrast, the defective rate after using the jig 52 of the manufacturing apparatus 50 for manufacturing a catalyst-supporting substrate 10 according to this embodiment was 0.56%. Therefore, it can be said that by using the jig 52 according to this embodiment, the defective rate of the catalyst-supporting substrate 10 manufactured by the manufacturing apparatus 50 for manufacturing a catalyst-supporting substrate 10 could be significantly reduced.

[0057] 6, when a honeycomb body 14 having a corrugated sheet 22 at its outermost periphery is used, the circumferential pitch P0 of the grooves 90 on the jig body 72 is illustrated as being the same as the pitch P1 of the corrugated sheet 22. If the circumferential pitch P0 of the grooves 90 on the jig body 72 is smaller than the pitch P1 of the corrugated sheet 22, the grooves 90 can further reduce the possibility that the peak portions 22a on the outermost periphery of the corrugated sheet 22 will come into contact with the inner circumferential surface of the cylindrical body 82.

[0058] 2A has been described as an example of manufacturing the catalyst support substrate 10 by pressing the honeycomb body 14, which has a corrugated plate 22 arranged on its outer periphery, onto the outer cylinder 12. Similarly, when manufacturing the catalyst support substrate 10 by pressing the honeycomb body 14, which has a flat plate 24 arranged on its outer periphery, onto the outer cylinder 12 as shown in FIG. 2B, the grooves 90 reduce friction between the outer peripheral surface of the flat plate 24 of the honeycomb body 14 and the inner peripheral surface of the cylindrical body 82.

[0059] Therefore, according to this embodiment, it is possible to provide a jig 52 that can suppress misalignment between the corrugated plate 22 and the flat plate 24 on the end face of the honeycomb body 14 when the honeycomb body 14 is pressed into the outer tube 12, a manufacturing apparatus 50 for the catalyst-supporting substrate 10, and a manufacturing method for the catalyst-supporting substrate 10.

[0060] The present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the spirit of the invention. Furthermore, the embodiments may be implemented in appropriate combinations, in which case the combined effects can be obtained. Furthermore, the above-described embodiments include various inventions, and various inventions can be extracted by combining selected elements from the disclosed elements. For example, if the problem can be solved and the desired effect can be obtained even if some elements are deleted from all elements shown in the embodiments, the configuration from which these elements are deleted can be extracted as an invention.

Claims

1. A jig used when manufacturing a catalyst-supporting substrate by pressing a honeycomb body, which is made by winding a corrugated sheet and a flat sheet together, onto an outer cylinder, the jig comprising a cylindrical jig body that is placed at or near the end of the outer cylinder when pressing the honeycomb body into the outer cylinder, and that holds the honeycomb body in a state where the outer diameter of the honeycomb body is smaller than the inner diameter of the outer cylinder, and a plurality of grooves are formed on the inner surface of the jig body along the pressing direction in which the honeycomb body is pressed.

2. A jig used when manufacturing a catalyst-supporting substrate by winding a corrugated sheet and a flat sheet together and pressing a honeycomb body whose outermost periphery is the corrugated sheet onto an outer cylinder, the jig comprising a cylindrical jig body that is placed at or near the end of the outer cylinder when pressing the honeycomb body into the outer cylinder, and that holds the honeycomb body in a state where the outer diameter of the honeycomb body is smaller than the inner diameter of the outer cylinder, the jig having a plurality of grooves formed on the inner surface of the jig body along the pressing direction in which the honeycomb body is pressed, and the circumferential pitch of the grooves around the jig body is the same as or smaller than the pitch of the corrugated sheet.

3. A manufacturing device for a catalyst-carrying substrate, comprising: a jig as defined in claim 1 or claim 2; a transfer device for transferring the honeycomb body to the inside of the jig; and a pressing device for pressing the honeycomb body in the jig body into the outer cylinder while the central axis of the jig body of the jig and the central axis of the outer cylinder are aligned or approximately aligned.

4. A method for manufacturing a catalyst-supporting substrate by pressing a honeycomb body formed by winding a corrugated sheet and a flat sheet together onto an outer tube, the method comprising: transferring the honeycomb body to the inside of a cylindrical jig body having a plurality of grooves formed on the inner surface of the jig body along the pressing direction in which the honeycomb body is pressed, and holding the honeycomb body in a state in which the outer diameter of the honeycomb body is smaller than the inner diameter of the outer tube; and pressing the honeycomb body in the jig body toward the inside of the outer tube while abutting the abutting portion on the outlet end side of the jig body of the jig against the inlet end of the outer tube and aligning or nearly aligning the central axis of the jig body of the jig with the central axis of the outer tube.

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