JP2010048231A - Device for manufacturing metal catalyst carrier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for manufacturing metal catalyst carrier capable of housing a honeycomb element in the state of pressing it into an outer cylinder well and improved in durability thereof. <P>SOLUTION: A tapered surface (a second guide hole 19d) of a press-in guide 19 is provided with a projection 19e capable of forming a groove 2a, which is recessed inside in the periphery of a honeycomb element 2. A clearance groove 27 capable of avoiding a contact of a slide piece 24 with the projection 19e is provided in a position corresponding to the projection 19e in the periphery of the slide piece 24. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus for producing a metal catalyst carrier.

Conventionally, a technique described in Patent Document 1 is known as a metal catalyst carrier manufacturing apparatus.
In this publication, a press-fitting punch for press-fitting a honeycomb body into an outer cylinder while reducing the diameter by a tapered surface of a press-fitting guide has a fixed piece connected to a piston rod of a hydraulic cylinder, and the fixed piece to the outside. A plurality of slide pieces that are slidably connected, and an elastic member that is interposed between each slide piece and the fixed piece and constantly urges each slide piece outward (see Patent Document 1). .
JP 2001-341040 A

  However, in the conventional invention, when the honeycomb body is press-fitted into the outer cylinder, a part of the outer periphery of the honeycomb body may be greatly bent inward and buckled.

  The present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to provide a metal catalyst that can accommodate the honeycomb body in a state of being press-fitted into the outer cylinder in a good manner and at the same time improve the durability of the apparatus It is to provide an apparatus for manufacturing a carrier.

  In the first aspect of the present invention, the press-fitting punch for pressing the honeycomb body in the axial direction by the driving force of the driving means and reducing the diameter by the tapered surface of the press-fitting guide while being pressed into the outer cylinder is connected to the driving means. A metal catalyst carrier manufacturing apparatus comprising: a fixed piece; a slide piece coupled to the fixed piece so as to be slidable outward; and an elastic member that constantly biases the slide piece outward. The taper surface is provided with a protrusion capable of forming a groove recessed inwardly on the outer periphery of the honeycomb body, and the slide piece and the protrusion are brought into a non-contact state when the press-fitting punch is press-fitted.

  In the first aspect of the present invention, a protrusion capable of forming a groove recessed inwardly on the outer periphery of the honeycomb body is provided on the tapered surface of the press-fitting guide, and the slide piece and the protrusion are in a non-contact state when the press-fitting punch is press-fitted. .

  As a result, the honeycomb body can be accommodated in a state of being press-fitted well into the outer cylinder, and at the same time the durability of the apparatus can be improved.

  Embodiments of the present invention will be described below with reference to the drawings.

Example 1 will be described below.
1 is a side sectional view showing a metal catalyst carrier of Example 1, FIG. 2 is a sectional view taken along line A2-A2 of FIG. 1, FIG. 3 is a diagram for explaining the formation of a honeycomb body of Example 1, and FIG. 2 is a perspective view immediately after formation of a honeycomb body of Example 1. FIG.
5 is an overall view of the press-fitting device of Example 1, FIG. 6 is an exploded perspective view of the press-fitting punch of Example 1, FIG. 7 is the perspective view, FIG. 8 is the front view, and FIG. FIG. 10 is a cross-sectional view taken along line A10-A10 in FIG. 9, illustrating a state before the press-fitting punch is operated, and FIG. 11 is a diagram illustrating a state after the press-fitting punch is operated.
FIG. 12 is a plan view of the press-fitting guide of Example 1, FIG. 13 is a cross-sectional view taken along line A13-A13 of FIG. 12, and FIGS.

First, the overall configuration will be described.
As shown in FIGS. 1 and 2, the metal catalyst carrier 1 of Example 1 includes a columnar honeycomb body 2 and a cylindrical outer cylinder 3 in which the honeycomb body 2 is accommodated.

Next, a method for producing the metal catalyst carrier 1 will be described.
The manufacturing method of the metal catalyst carrier 1 is performed in the order of the honeycomb body forming step, the groove processing step, the press-fitting step, and the brazing step.
<Honeycomb body forming process>
In the honeycomb body forming step, the honeycomb body 2 is formed using a processing apparatus similar to that disclosed in JP-A-2006-239580.
That is, as shown in FIG. 3, the long and corrugated metal foil 4 formed of a roll gear or the like, and the starting end of the long and flat metal foil 5 (the small corrugated metal foil 5) are arranged on the outside. After being fixed to the winding shaft 6 in such a manner, the two metal foils 4 and 5 are wound in multiple layers in a stacked state to form a roll.
Thereafter, the end portions of both the metal foils 4 and 5 are fixed together with the brazing foil material 7 wound around the outer periphery of the honeycomb body 2 by spot welding or the like to form the desired honeycomb body 2 (see FIG. 4).
In Example 1, the brazing foil material 7 is provided at the longitudinal center position of the honeycomb body 2, but this is not restrictive.

<Grooving process and press-fitting process>
In the groove processing step and the press-fitting step, a plurality of grooves are formed on the outer periphery of the honeycomb body 2 and press-fitted into the outer cylinder 3.
Specifically, a press-fitting device 10 in which an additional change is added to the press-fitting device similar to the known Japanese Patent Application Laid-Open No. 11-197518 is used.

First, the press-fitting device 10 will be described in detail.
In FIG. 5, a tower block 12 erected on a horizontal base 11 has a rail 13 extending in the vertical direction, and a lift plate 14 is slidably engaged with the rail 13. Yes.

A piston rod 15 a of an air cylinder 15 attached to the tower block 12 is connected to the elevating plate 14, and the elevating plate 14 is moved up and down by the operation of the air cylinder 15.
The driving of the pneumatic cylinder 15 may be replaced by a hydraulic type or the like, but is not limited to this.
Further, a support bracket 16 is provided at the upper part of the elevating plate 14, while a support bracket 17 is provided at the lower part.
An air cylinder 18 is mounted on the support bracket 16 in the vertical direction, and a cylindrical press-fitting guide 19 is mounted on the support bracket 17 coaxially with the piston rod 18 a of the air cylinder 18.
The driving of the pneumatic cylinder 18 may be replaced with a hydraulic type or the like, but is not limited to this.

A press-fitting punch 20 is provided at the lower end of the piston rod 18a.
As shown in FIGS. 6 to 8, the press-fitting punch 20 includes a disc-shaped guide member 21 integrally fixed to the lower end of the piston rod 18 a and a punch body 22 attached to the guide member 21. ing.
The punch main body 22 is disposed in four directions around the rectangular fixing piece 23 arranged immediately below the center of the guide member 21, and is substantially fan-shaped in plan view and has the same thickness as the fixing piece 23. The slide piece 24 is constituted.
In addition, about the shape of the fixed piece 23, the number of installation of the slide piece 24, and the arrangement | positioning relationship with a fixed piece, it can set suitably.

On the upper surface of the fixed piece 23, a mounting stay 23 a that can be inserted into a mounting hole 21 a that is notched in the bottom surface of the guide member 21 is projected upward.
Then, after the mounting stay 23a is inserted into the mounting hole 21a, the mounting pin 18b (see FIGS. 7 and 8) inserted from the outer periphery of the piston rod 18a is engaged with the engaging hole 23b of the mounting stay 23a to fix the mounting stay 23a. The piece 23 is fixed to the guide member 21.
The fixing structure of the fixing piece 23 and the guide member 21 may employ a structure other than those described above, and may further integrally form both of them.

As shown in FIGS. 9 and 10, the fixed piece 23 and each slide piece 24 are coupled via a coupling cylinder 25.
In FIG. 10, the upper slide piece 24 and the coupling cylinder 25 in the drawing will be described with detailed reference numerals.
The coupling cylinder 25 includes a fixed shaft 25a fixed to the fixed piece 23, and a piston 25b connected to the fixed shaft 25a so as to be expandable and contractable in the axial direction.
Each slide piece 24 is formed with an insertion hole 24a for penetrating the piston 25b, and a recess 24b having a larger diameter than the insertion hole 24 is formed on the outer side thereof, and is provided in the piston 25b. Further, the cylindrical stopper 25c is arranged to prevent the slide piece 24 from falling off.

A recess 24c having a diameter larger than that of the insertion hole 24 is formed inside the insertion hole 24a of the slide piece 24, and the slide piece 24 extends along the coupling cylinder 25 between the recess 24c and the fixed piece 23. A coil spring 26 that constantly urges the spring outward is interposed.
The coil spring 26 only needs to be able to obtain a force that constantly urges the slide piece 24 to the outside, and can be replaced by a material using elasticity such as rubber, liquid, or gas.
Further, the coil spring 26 may be interposed between the piston 25b and the fixed shaft 25a so that the slide piece 24 is constantly urged outward. In this case, the assembling property of the coupling cylinder 25 can be improved.

Further, on the outer periphery of the slide piece 24, there are a plurality of escape grooves 27 recessed inward in a substantially trapezoidal shape in plan view inward (five in the first embodiment, five on the outer periphery of the punch body 22. 20 in total).
The shape of the escape groove 27 is not limited to a substantially trapezoidal shape in plan view, and the shape, arrangement, and number of formation can be set as appropriate.

Accordingly, as shown in FIGS. 10 and 11, each slide piece 24 is provided to be slidable along the longitudinal direction of the coupling cylinder 25 against the urging force of the coil spring 27 with respect to the fixed piece 23. .
At this time, the outer periphery of the punch main body 22 before and after the slide movement of each slide piece 24 is substantially circular.
When each slide piece 24 slides and the abutting portion 24d of each slide piece 24 and the corresponding side surface 23c of the fixed piece 23 and the abutting portion 24e of the slide piece 24 match each other, the punch body The outer periphery of 22 becomes the minimum diameter.

As shown in FIGS. 12 and 13, the inner periphery of the press-fitting guide 19 has a first guide hole 19 a having a tapered surface that gradually increases in diameter toward the lower end, and an upper end of the first guide hole 19 a. A perfect circle correction hole 19b is formed in a row.
Moreover, it has the annular step part 19c which stands up from the upper end of this correction hole 19b, and the taper surface which opens while gradually expanding the diameter as it goes to the other end of this jig | tool 19 from the inner periphery of this annular step part 19c. A second guide hole 19d is formed.

The second guide hole 19d is formed with a plurality of protrusions 19e protruding in a mountain shape toward the center of the press-fitting guide 19 (20 in the first embodiment are shown) at equal intervals in the circumferential direction.
In addition, the shape and the number of installation of the protrusion 19e can be set as appropriate, and may be formed in a gentle mountain shape, for example.

The inlet diameter at the lower end of the first guide hole 19 a is larger than the outer diameter of the outer cylinder 3, and the inner diameter of the correction hole 19 b is set equal to the outer diameter of the outer cylinder 3.
Also. The inlet diameter L1 at the upper end of the second guide hole 19d is set larger than the outer diameter of the honeycomb body 2 and the outer diameter of the maximum diameter of the punch body 22.
Furthermore, the outlet diameter L2 at the lower end of the second guide hole 19d is set to be smaller than the inner diameter of the outer cylinder 3 and equal to or slightly larger than the minimum diameter of the punch body 22.

As shown in FIG. 5, a work support block 28 arranged coaxially below the press-fitting guide 19 is fixed on the base 11, and the outer cylinder 3 is disposed at the upper end of the work support block 28. An annular projection 28a is formed to be fitted to the inner periphery of the lower end of the projection.
Further, a disk-like support 29 is coaxially disposed below the press-fitting punch 20.
A piston rod 30 a of an air cylinder 30 accommodated in the base 11 is connected to the lower portion of the support 29 so as to pass through the press-fitting guide 19 and the work support block 28. Thus, the support 29 is moved up and down.
The driving of the pneumatic cylinder 30 may be replaced with a hydraulic type, and is not limited to this.

Next, the operation of the press-fitting device 10 will be described.
In the press-fitting device 10 configured as described above, first, as shown in FIG. 14, the lifting plate 14 is stopped at the raised position by the contraction operation of the piston rod 15 a of the pneumatic cylinder 15.
In addition, the outer cylinder 3 is placed on the work support block 21 in a state where the support 29 is stopped at the same height as the projection 28 a by the contraction operation of the piston rod 30 a of the pneumatic cylinder 30.
At this time, the outer cylinder 3 is arranged coaxially with the press-fitting guide 19 by fitting the protrusion 28 a to the inner periphery of the lower end of the outer cylinder 3.

Next, as shown in FIG. 15, the lifting plate 14 is gradually lowered by the extension operation of the piston rod 15 a of the pneumatic cylinder 15.
At this time, the upper end portion of the outer cylinder 3 is fitted into the correction hole 19b through the first guide hole 19a of the press-fitting guide 19, whereby the distortion of the outer cylinder 3 can be corrected.
Thereafter, the elevating plate 14 is stopped when the upper end portion of the outer cylinder 3 comes into contact with the annular step portion 19c.

  Next, as shown in FIG. 16, the support 29 is disposed slightly above the upper end of the press-fitting guide 19 by the extension operation of the piston rod 30 a of the pneumatic cylinder 30, and then the honeycomb is formed on the support 29. The body 2 is placed.

  Thereafter, the press-fitting punch 20 is gradually lowered by the extension operation of the air-type cylinder 18, and when the lower surface of the press-fitting punch 20 comes into contact with the upper surface of the honeycomb body 2 as shown in FIG. After the support body 29 is lowered in synchronization with the press-fitting punch 20 by the contraction operation of the rod 30a, the support body 29 is returned to the original position by the contraction operation of the piston rod 30a of the pneumatic cylinder 30 (see FIG. 18).

On the other hand, as shown in FIGS. 18 and 19, the press-fitting punch 20 pushes the upper surface of the honeycomb body 2 downward and descends to a predetermined position, thereby reducing the diameter of the honeycomb body 2 by the second guide holes 19d and correcting holes 19b. It press-fits in the outer cylinder 3 waiting in the inside.
At this time, the fixed piece 23 and the slide piece 24 of the punch body 22 of the press-fitting punch 20 are lowered while pushing the honeycomb body 2 downward, and the outer periphery of the lower surface of each slide piece 24 slides into the second guide hole 19d. As shown in FIGS. 20 and 21, each slide piece 24 slides inward, and the outer circumference of the punch main body 22 is reduced in diameter as the honeycomb body 2 is reduced in diameter.
As a result, the entire upper surface of the honeycomb body 2 can be constantly pressed with a large area by the press-fitting punch 20, and the upper surface of the honeycomb body 2 can be locally prevented from buckling.

  Further, since the upper surface of each slide piece 24 is in contact with the lower surface of the guide member 21 and the upward displacement is restricted, there is no risk that each slide piece 24 will be tilted by the sliding resistance with the second guide hole 19d, It can be pushed downward in a state of being in good contact with the upper surface of the honeycomb body 2.

On the other hand, the outer periphery of the honeycomb body 2 (both of the brazing foil material 7) is pressurized radially inward by the protrusions 19e of the press-fitting guide 19 to form a plurality of grooves 2a (see FIG. 2).
At this time, the honeycomb body 2 is corrected to a perfect circle while being gradually reduced in diameter by the tapered surface of the second guide hole 19d, but the diameter reduction at that time can be progressed uniformly by the groove 2a.
Further, damage to the honeycomb body 2 can be avoided by the tapered surface of the second guide hole 19d, and at the same time, the service life of the press-fit guide 19 can be extended.

  As a result, the honeycomb body 2 can be uniformly reduced in diameter, and there is no possibility that stress is concentrated on a part of the outer periphery of the honeycomb body 2 to cause large buckling, and there is a large gap between the honeycomb body 2 and the outer cylinder 3. It can be prevented from occurring.

Further, due to the relationship of the outlet diameter at the lower end of the second guide hole 19 d <the inner diameter of the outer cylinder 3, the honeycomb body 2 is press-fitted in a state of being narrowed to be smaller than the inner diameter of the outer cylinder 3. Can be reduced.
Therefore, the honeycomb body 2 can be press-fitted into the outer cylinder 3 from the second guide hole 19d with a relatively small press-fitting load.
In addition, the entire outer peripheral surface of the honeycomb body 2 can be brought into close contact with the inner peripheral surface of the outer cylinder 3 by the restoring force of the groove 2 a after the press-fitting of the honeycomb body 2.

21 and 22, when the slide pieces 24 of the press-fitting punch 20 slide, in other words, when the press-fitting punch 20 is inserted, the contact between the protrusion 19e of the press-fitting guide 19 and the slide piece 24 is recessed. 27.
That is, the shape of the recess 27 is set to a shape that can avoid contact with the protrusion 19e.
Thereby, especially the wear of the protrusion 19e by the contact of the protrusion 19e and each slide piece 24 can be prevented, and durability of the press-fit apparatus 10 can be improved.

Here, it is also possible to form a protrusion from the outer periphery of each slide piece 24 to the outside so that each slide piece 24 and the protrusion 19e are in a non-contact state.
However, in Example 1, since the recessed part 27 recessed inwardly is formed in the outer periphery of each slide piece 24, the loss of the pressing area of the honeycomb body 2 can be minimized, and becomes more suitable.

The outer cylinder 3 in which the honeycomb body 2 is housed is moved to the work support block after the lifting plate 14 and the press-fitting punch 20 are returned to the original positions by the contraction operation of the piston rods 15a, 18a of the air cylinders 15, 18. 21 can be removed.
Further, the depth, number of formations, and arrangement of the grooves 2a (projections 19e) can be set as appropriate. These are the outer peripheral length before press-fitting of the honeycomb body 2 and the outer peripheral length after press-fitting (the inner peripheral length of the outer cylinder 3). Set to absorb the difference in circumference.
The depth of the groove 2a after press-fitting is preferably 1 to 2 times the wave height of the metal foil 4.

<Brazing process>
The metal catalyst carrier 1 formed in this way is conveyed to a heating furnace (not shown) and subjected to heat treatment, whereby the top of the wave of the metal foil 4 and the portion where the metal foil 5 is in contact are diffusion-bonded and the honeycomb A part of the outer periphery of the body 2 and the outer cylinder 3 are brazed and joined by melting the brazing foil material 7.
Thereafter, an exhaust gas purifying catalyst carrier layer made of noble metal, alumina or the like is formed on the surface of the cell penetrating in the axial direction formed by the gap between the metal foils 4 and 5 of the honeycomb body 2.

Next, the operation will be described.
The thus configured metal catalyst carrier 1 is interposed with both ends of the outer cylinder 3 being connected in communication with the internal combustion engine exhaust system of the automobile, and is one end of the outer cylinder 3 on the engine side exhaust upstream side. exhaust gas flowing into the outer cylinder 3 from passes through the cells of the honeycomb body 2, harmful components in the exhaust by the action of the catalyst (HC, CO, NOx, etc.) is harmless components _(CO 2, _{H 2} O, etc.) And is discharged from the other end on the exhaust downstream side.
At this time, the grooves 2a are uniformly formed between the outer tube 3 of the metal catalyst carrier 1 of Example 1 and the honeycomb body 2, and there is no large gap locally. There is no possibility that the air will pass unevenly, and the exhaust purification performance can be prevented from deteriorating.
In addition, since the honeycomb body 2 is not locally deformed, there is no possibility that thermal stress is concentrated on a specific portion of the honeycomb body 2 and the durability of the honeycomb body 2 can be prevented from being lowered.

  Finally, the effects of the first embodiment will be described together with (1) to (4) corresponding to claims 1 to 4.

  (1) The honeycomb body 2 is pressed in the axial direction by the driving force of the driving means (piston rod 18a of the air cylinder 18) and reduced in diameter by the tapered surface (second guide hole 19d) of the press-fitting guide 19 to the outer cylinder. A press-fitting punch 20 for press-fitting, a fixed piece 23 connected to the driving means (piston rod 18a of the pneumatic cylinder 18), a slide piece 24 coupled to the fixed piece 23 so as to be slidable outward; In the metal catalyst carrier 1 manufacturing apparatus (press-fit apparatus 10) having an elastic member (coil spring 26) that constantly urges the slide piece 24 outward, the taper surface (second guide hole 19d) of the press-fit guide 19 is provided. A protrusion 19e capable of forming an inwardly recessed groove 2a is provided on the outer periphery of the honeycomb body 2, and the slide piece 24 and the protrusion 19e are brought into a non-contact state when the press-fitting punch 20 is press-fitted. And the.

  Thereby, the honeycomb body 2 can be accommodated in a state of being press-fitted into the outer cylinder 3 well, and at the same time, the durability of the device (press-fitting device 10) can be improved.

  (2) An escape groove 27 that can avoid contact between the slide piece 24 and the protrusion 19e is provided at a position corresponding to the protrusion 19e on the outer periphery of the slide piece 24.

  Thereby, the pressing area of the honeycomb body 2 can be secured in as wide a range as possible, which is preferable.

  (3) A plurality of grooves 2 a are arranged at equal intervals on the outer periphery of the honeycomb body 2.

  Thereby, buckling of the honeycomb body 2 can be reliably prevented, and product reliability can be improved.

  (4) The honeycomb body 2 is press-fitted into the outer cylinder in a state where the honeycomb body 2 is narrowed to be smaller than the inner diameter of the outer cylinder 3 by the press-fitting guide 19.

Thereby, the press-fitting resistance in the initial press-fitting stage of the honeycomb body 2 can be lowered, the burden on the honeycomb body 2 can be reduced, and good press-fitting can be realized.
In addition, the adhesiveness with the outer cylinder 3 can be improved by the restoring force of the grooves 2a of the honeycomb body 2.

  (5) The brazing foil material 7 for brazing and joining to the outer cylinder 3 is provided on the outer periphery of the honeycomb body 2.

  Thereby, the groove | channel 2a can be formed in the brazing foil material 7 with the outer peripheral part of the honeycomb body 2, and the adhesiveness of the honeycomb body 2 and the outer cylinder 3 can be improved, and the brazing foil material 7 may peel off at the time of press-fitting into an outer cylinder. Can be eliminated.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.
For example, the brazing foil material 7 of the honeycomb body 2 can be omitted and the honeycomb body 2 and the outer cylinder 3 can be fixed by diffusion bonding.
A plurality of holes may be formed in both metal foils 4 and 5.
Further, the number of slide pieces installed and the slide direction can be set as appropriate.
Furthermore, the cross-sectional shape of the honeycomb body 2 is not limited to a circular shape, and may be an elliptical shape as shown in FIG. 22 or a non-circular shape such as a racetrack type as shown in FIG. In particular, since the buckling of the honeycomb body 2 tends to be large, the action and effect of the present invention can be particularly exerted, which is preferable.

1 is a side sectional view showing a metal catalyst carrier of Example 1. FIG. It is sectional drawing by the A2-A2 line of FIG. FIG. 3 is a diagram illustrating the formation of a honeycomb body of Example 1. 1 is a perspective view immediately after formation of a honeycomb body of Example 1. FIG. 1 is an overall view of a press-fitting device according to Embodiment 1. FIG. It is a disassembled perspective view of the press-fitting punch of Example 1. FIG. 3 is a perspective view of a press-fitting punch of Example 1. FIG. 3 is a front view of the press-fitting punch of Example 1. 2 is a side sectional view of the press-fitting punch of Example 1. FIG. It is sectional drawing by the A10-A10 line | wire of FIG. 9, and is a figure explaining the action | operation before a press-fit punch. FIG. 6 is a plan view of the press-fitting guide of FIG. 1 for explaining the operation of the press-fitting punch of the first embodiment. It is a top view of the press-fitting guide of Example 1. It is sectional drawing by the A13-A13 line | wire of FIG. 12 of Example 1. FIG. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. FIG. 3 is a diagram for explaining a method for producing a metal catalyst carrier of Example 1. It is sectional drawing explaining the metal catalyst carrier of another Example. It is sectional drawing explaining the metal catalyst carrier of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal catalyst carrier 2 Honeycomb body 2a Projection part 3 Outer cylinder 4, 5 Metal foil 6 Winding shaft 7 Brazing foil material 10 Press-fitting device 11 Base 12 Tower block 13 Rail 14 Lifting plate 15 Pneumatic cylinder 15a Piston rod 16 Support bracket 17 Support bracket 18 Pneumatic cylinder 18a Piston rod 18b Mounting pin 19 Press-in guide 19a First guide hole 19b Correction hole 19c Annular step 19d Second guide hole 19e Projection 20 Press-in punch 21 Guide member 21a Mounting hole 22 Punch body 23 Fixed piece 23a Mounting stay 23b Engagement hole 23c Side surface 24 Slide piece 24a Insertion hole 24b, 24c Recess 25 Coupling cylinder 25a Fixed shaft 25b Piston 25c Stopper 26 Coil spring 27 Escape groove 28 Work support block 28a Projection 29 Support body 30 Pneumatic cylinder 30 a Piston rod

Claims (6)

A press-fitting punch for press-fitting the honeycomb body into the outer cylinder while pressing the honeycomb body in the axial direction by the driving force of the driving means and reducing the diameter by the tapered surface of the press-fitting guide; A metal catalyst carrier manufacturing apparatus comprising: a slide piece slidably coupled to the outer side; and an elastic member that constantly biases the slide piece to the outside.
On the tapered surface of the press-fitting guide, provided with a protrusion capable of forming a groove recessed inward on the outer periphery of the honeycomb body,
An apparatus for manufacturing a metal catalyst carrier, wherein the slide piece and the protrusion are brought into a non-contact state when the press-fitting punch is press-fitted. In the apparatus for producing a metal catalyst carrier according to claim 1,
An apparatus for producing a metal catalyst carrier, wherein an escape groove capable of avoiding contact between the slide piece and the protrusion is provided at a position corresponding to the protrusion on the outer periphery of the slide piece. In the manufacturing apparatus of the metal catalyst carrier according to claim 1 or 2,
An apparatus for manufacturing a metal catalyst carrier, wherein a plurality of the grooves are arranged at equal intervals on the outer periphery of the honeycomb body. In the manufacturing apparatus of the metal catalyst carrier in any one of Claims 1-3,
An apparatus for manufacturing a metal catalyst carrier, wherein the honeycomb body is press-fitted into the outer cylinder in a state where the honeycomb body is squeezed smaller than the inner diameter of the outer cylinder by the press-fitting guide. In the manufacturing apparatus of the metal catalyst carrier according to any one of claims 1 to 4,
An apparatus for producing a metal catalyst carrier, wherein a brazing foil material for brazing and joining to an outer cylinder is provided on the outer periphery of the honeycomb body. In the apparatus for producing a metal catalyst carrier according to any one of claims 1 to 5,
An apparatus for producing a metal catalyst carrier, wherein the cross-sectional shape of the metal catalyst carrier is an elliptical shape or a non-circular shape.

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