JP2751081B2 - Honeycomb structure manufacturing equipment - Google Patents

Description

The present invention relates to a carrier for supporting a catalyst of an exhaust gas purifying device exhausted from an internal heat engine of an automobile, a motorcycle or the like, and a boiler, a chemical, and the like. The present invention relates to a device for manufacturing a honeycomb structure used as a carrier for supporting a catalyst of a waste gas purifying device and a deodorizing device discharged from plant equipment and cookware.

(Prior Art) In general, a catalytic converter using a metal honeycomb structure as a catalyst carrier is disposed in an exhaust system of an automobile in order to purify exhaust gas. The structure of the metal honeycomb carrier used in this type of catalytic converter is formed by alternately stacking a corrugated metal plate and a flat plate, and winding these in a cylindrical multiple around the core material. I have.

Heretofore, in order to prevent the wound corrugated sheet from being separated from the flat plate, the corrugated plate and the flat plate are brazed or welded in a dotted shape or over the entire length.

However, a metal honeycomb structure in which a corrugated plate and a flat plate are joined by brazing has problems in that the joining strength is not sufficient and the production cost is increased.

Conventionally, as a method of welding while winding a corrugated plate and a flat plate, one electrode is brought into contact with the outer periphery of a flat plate or a corrugated plate wound around a winding shaft, and the other electrode is wound on a winding shaft or a flat plate feed roll. There is a method of connecting to a rotating shaft of a corrugated plate or a rotating shaft of a corrugated sheet feed gear and performing welding by using this pair of electrodes
63-56934). However, in this method, as the diameter of the honeycomb structure increases, welding becomes unstable, and when an electrode is provided on the winding shaft, welding occurs between the shaft and the honeycomb structure. It is difficult to remove it from the winding shaft, and if electrodes are provided on the rotating shaft of the feed roll or the feed gear, the distance between the electrodes becomes large and welding is not stable.

Further, a method of providing a pair of electrodes at regular intervals, pressing the electrodes on the outer periphery of the flat plate side and the corrugated plate side of the roll body, and welding the flat plate or the corrugated plate and the corrugated plate or the flat plate adjacent to the inside thereof. (See Japanese Utility Model Laid-Open No. 1-96276). However, in this method, an electrode provided in parallel from the surface of a certain plate is used to weld the other plate adjacent to the plate, but as a result of the current flowing on one plate surface, stable welding is performed. There was a drawback that it was difficult to perform.

Therefore, these welding methods have a problem in that the welding strength is insufficient and peeling is easy.

(Problems to be Solved by the Invention) The present invention has been made in order to solve the above problems, and an object of the present invention is to easily convert a corrugated plate and a flat plate,
Another object of the present invention is to provide an apparatus for manufacturing a metal honeycomb structure that can be securely joined.

(Means for Solving the Problems) The gist of the present invention is to provide a flat plate feed roll for transferring a metal flat plate to a take-up shaft side, and a metal corrugated sheet to be superposed on the flat plate and transferred to the take-up shaft side. Of a honeycomb structure for forming a honeycomb structure from a corrugated sheet feed gear, a winding shaft for winding these metal plates into a cylindrical shape, and a driving device for driving the metal plates and a corrugated plate In the apparatus, a first electrode abutting on an outer periphery of a flat plate wound around the winding shaft, and a first electrode abutting on an outer periphery of a corrugated sheet wound around the winding shaft, and electrically connected to the first electrode An electrode for welding a flat plate made of a second electrode and a corrugated plate, which are placed near the first electrode so as to form a counter electrode, and one of the metals of the welded flat plate and the corrugated plate A third electrode in contact with the outer periphery of the plate; A honeycomb structure having a fourth electrode which is in contact with a flat plate or a corrugated plate to be formed, and which is provided in close proximity to form a pair so as to be electrically opposed to the third electrode. Manufacturing equipment.

In the present invention, the electrode in contact with the flat plate is a circular rotating electrode to be used, housed in a case, provided with a spring for urging the flat plate toward the wound corrugated plate, and crimped the corrugated plate and the flat plate. It is preferable that the rotating electrode element
Further, the electrode in contact with the corrugated plate is a rotating electrode having the same shape as the corrugated plate feed gear, housed in a case, and provided with a spring for urging the corrugated plate toward the wound flat plate, It is preferable to use a rotating electrode element that presses against a corrugated plate.

Further, the electrodes are balanced by weights as shown in FIGS. 2 and 3 in order to keep the pressure constant as the diameter of the honeycomb changes.

In addition to the weight, the position of the electrode can be controlled by a combination of a cylinder, a spring, and the like.

(Operation) In the present invention, the first electrode is in contact with the outer periphery of a flat plate wound around the winding shaft, and the second electrode is in contact with the outer periphery of the corrugated sheet wound around the winding shaft. In addition, since the first electrode and the second electrode are arranged so as to be close to each other and electrically form a counter electrode, the first electrode and the second electrode are reliably connected to each other via the flat plate and the corrugated plate. As a result, the flat plate and the corrugated plate are welded.

Next, the third electrode is provided in contact with the outer periphery of one of the welded flat plate and the one metal plate of the corrugated plate.
The electrode is installed so as to electrically constitute a counter electrode in the vicinity of the third electrode, and is in contact with the flat plate or the corrugated plate wound around the welded flat plate and corrugated plate. On the welded flat plate and corrugated plate, one layer of metal plate is electrically welded, and thus wound sequentially, and the whole can be easily and reliably fixed.

Example Next, an example will be described more specifically.

FIG. 1 shows an embodiment of the apparatus for manufacturing a honeycomb structure according to the present invention.

In FIG. 1, reference numeral 21 denotes a structure formed by laminating a metal corrugated plate 23 and a flat plate 25 and winding these over and over.

Here, the flat plate 25 and the corrugated plate 23 are wound around a winding shaft 27 made of metal. On one side of the winding shaft 27, a flat plate feed roll 29 for transferring the flat plate 25 to the winding shaft 27 side is arranged. The flat plate feed roll 29 includes a roll 31 positioned above the flat plate 25 and a roll 32 positioned below the flat plate 25.

On the other side of the take-up shaft 27, a pair of corrugated plate feed gears 38 for transferring the corrugated plate 23 to the take-up shaft 27 side are arranged.

A pair of a first electrode 11 and a second electrode 12 and a pair of a third electrode 13 and a fourth electrode 14 are also provided on the outer periphery of the flat plate 25 and the corrugated plate 23 wound around the winding shaft 27. Are arranged in opposition. The paired electrodes are arranged close to each other so as to shorten the current path.

FIG. 2 shows an electrode in contact with a corrugated plate 23. This electrode is composed of a corrugated plate feed gear-shaped rotary electrode 24, a case 22 accommodating the corrugated plate feed gear-shaped rotator 24, and a case 22 inside the case 22. And a spring 20 for urging the gear-shaped rotary electrode element 24 toward the corrugated plate 23.

FIG. 3 shows an electrode in contact with the flat plate 25. The electrode is a circular rotating electrode 28, a case 29 for accommodating the circular rotating electrode 28, and a circular rotating electrode 28 accommodated in the case 29. And a spring 30 for urging toward the flat plate 25.

In the honeycomb structure manufacturing apparatus configured as described above, the first electrode 11 abuts on the outer periphery of the flat plate 25 wound around the winding shaft 27, and the second electrode 12 winds around the winding shaft 27. The first electrode 11 is electrically connected to the second electrode 12 via the flat plate 25 and the corrugated plate 23 because the first electrode 11 is disposed in contact with the outer periphery of the turned corrugated plate and close to the first electrode 11. .

A corrugated sheet wound around the winding shaft 27 around the third electrode 13
23, the fourth electrode 14 is in contact with the outer periphery of the flat plate 25 wound around the take-up shaft 27, and is arranged close to the third electrode 13, so that the third electrode 13 Is conducted to the fourth electrode 14 through the corrugated plate 23 and the flat plate 25.

The first electrode 11 and the second electrode 12 which are electrically paired, and the third electrode 13 and the fourth electrode 14 which are also electrically paired are connected to independent power sources.

Also, the reason why the paired electrodes are arranged close to each other is to keep the electric resistance of the current path small and keep it substantially constant. This is to avoid the problem that welding cannot be performed.

2 and 3, the electrodes are balanced by weights. As the honeycomb is wound, the diameter increases, but is balanced because the electrode follows the change in the diameter of the honeycomb, always contacts the honeycomb at an appropriate position and with a constant pressing force by the spring, and is welded Will be.

In the manufacturing price of the metal honeycomb carrier configured as described above, the corrugated plate 23 and the flat plate 25 are sequentially electrically welded, for example, at the core.

(Effects of the Invention) According to the present invention, the first electrode is in contact with the outer periphery of the flat plate (or corrugated plate) wound around the winding shaft, and the second electrode is wound around the winding shaft. Since it is arranged in contact with the outer periphery of the corrugated plate (or flat plate) and is arranged close to the first electrode, electric welding can be easily performed, and the flat plate is corrugated with the flat plate around the core outer periphery wound around the winding shaft. The plate can be easily and reliably fixed.

Similarly, the third electrode is in contact with the outer periphery of the magnetic (or flat) wound around the winding shaft, and the fourth electrode is in contact with the outer periphery of the flat (or flat) wound around the winding shaft, In addition, since it is arranged close to the third electrode, electric welding can be easily performed, and the corrugated and flat plate can be easily and reliably fixed from the corrugated plate side around the core wound around the winding shaft. it can.

Furthermore, the manufacturing apparatus of the honeycomb structure according to the present invention has the following effects.

Since the corrugated plate and the flat plate are welded and the outer metal plate of the welded body is welded, the fixing is easy and reliable.

It is fixed while forming the core, so that the working process can be omitted and it is economical.

Since the distance between the electrodes is arranged to be constant and short, welding is stable and the joining strength is constant.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an apparatus for manufacturing a honeycomb structure according to the present invention, and FIGS. 2 and 3 are explanatory views of electrodes used in this apparatus. 21 ... honeycomb structure, 23 ... corrugated plate, 25 ... flat plate, 11 ...
... a first electrode, 12 ... a second electrode, 13 ... a third electrode,
14 ... the fourth electrode, 27 ... the winding shaft,

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koichiro Kurata 4 Kosagi-cho, Kosai-cho, Koga-gun, Shiga Prefecture Inside the Omi Plant of Toa Co., Ltd. In the Omi Plant of TOA CORPORATION (56) References Japanese Utility Model Showa 63-56934 (JP, U)

Claims (3)

(57) [Claims] 1. A flat plate feed roll for transferring a metal flat plate to a take-up shaft side, a corrugated plate feed gear for stacking a metal corrugated plate on the flat plate and transferring the same to the take-up shaft side, A winding shaft for winding a plate into a cylindrical shape, and a honeycomb structure manufacturing apparatus for forming a honeycomb structure from a metal flat plate and a corrugated plate comprising a driving device for driving the winding shaft; A first electrode in contact with the outer periphery of the turned flat plate; and a first electrode in contact with the outer periphery of the corrugated plate wound on the winding shaft and electrically forming a counter electrode with the first electrode. And a third electrode contacting the outer periphery of one of the welded flat plate and the corrugated metal plate. An electrode, abutting on the flat plate or the corrugated plate wound around the welded flat plate and corrugated plate, and Apparatus for manufacturing a honeycomb structured body characterized by having a third electrode electrically fourth electrodes installed close to form a paired so as to form a counter electrode. 2. An electrode contacting a flat plate is a circular rotary electrode, and the circular rotary electrode is housed in a case, and the rotary electrode housed in the case is wound around the winding shaft. 2. The apparatus for manufacturing a honeycomb structure according to claim 1, further comprising a spring for urging the flat plate toward the corrugated plate. The electrode in contact with the corrugated sheet is a rotary electrode having the same shape as the corrugated sheet feed gear. The corrugated sheet feed gear-shaped rotary electrode is accommodated in a case and accommodated in the case. 2. The manufacturing structure of a honeycomb structure according to claim 1, further comprising a spring wound around the winding electrode of the corrugated plate feed gear and energizing the corrugated plate toward a flat plate. .