JPH07214157A - Device for winding honeycomb structural body - Google Patents

Abstract

PURPOSE:To simultaneously carry a flat foil and a waved foil and to shorten the time from a fitting to a winding processes by sticking the fed flat foil and waved foil while neatly arranging the end surfaces of both foils at the step of winding the flat foil and the waved foil. CONSTITUTION:At the step of neatly arranging the end surfaces of the flat foil 2 and the waved foil 3, disk electrodes 15 for electric resistant welding are descended and the electric current is conducted while holding the waved foil 3 and shifting backward, and the waved foil 3 and the flat foil 2 are welded in about 30mm to withdraw the electrodes to the upper front part. Further, a threader 12 releases clamps 14a, 14b and retreats. The flat foil 2 fixed with the waved foil 3 is shifted by advancing the clamped end surface arranging guide 4, and at the time of coming to the winding position, the flat foil 2 is clamped with clamps 16a, 16b. In this condition, a winding shaft 1 is advanced to interpose the flat foil. Successively, the clamps 16a, 16b and a clamp 10 in the end surface arranging guide release the flat foil and retreat. After completing the retreating, a motor for driving the winding shaft is rotated and a cylindrical metal honeycomb structural body is manufactured by simultaneously winding the flat foil 2 and the waved foil 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for a cylindrical honeycomb structure such as an automobile catalytic converter carrier.

[0002]

2. Description of the Related Art As a catalyst carrier for purifying automobile exhaust gas, a flat foil (called flat foil) of heat-resistant metal (such as stainless steel) and a corrugated foil (called corrugated foil) are laminated and wound. A metal carrier in which a honeycomb body formed by joining the contact portions of these flat-corrugated foils at appropriate times is housed and joined in a heat-resistant metal outer cylinder has already been put into practical use.

The honeycomb body which constitutes this kind of metal carrier is generally formed by stacking a stainless steel flat foil having a thickness of about 50 μm and a corrugated foil, and attaching the tips of both foils to a winding shaft to form a spiral flat foil. It is manufactured by winding it rigidly so that the contact portion with the corrugated foil is in close contact.

Conventionally, the above-mentioned cylindrical or hollow cylindrical metal honeycomb has been manufactured by a honeycomb structure winding device, but a dedicated machine has been used for each of them. That is, as a winding device for a cylindrical metal honeycomb, there is, for example, JP-A-2-241614. Also, as a winding device for a hollow cylindrical metal honeycomb, there is disclosed in Japanese Patent Laid-Open No.
No. -260445 is disclosed.

In any case, in the conventional winding device, in manufacturing the honeycomb body, the flat foil is first sandwiched between the winding shafts,
The wound core portion is formed. Then, the corrugated foil is sandwiched between the core and the flat foil, and the flat foil and the corrugated foil are simultaneously wound to form a honeycomb body. The formed honeycomb body is fixed at the winding end by spot welding and discharged.

[0006]

However, in the above-mentioned conventional apparatus, since the work of mounting the corrugated foil on the winding shaft is carried out step by step after the work of mounting the flat foil on the winding shaft, it takes a long working time and mass production. In doing so, high-speed processing was hindered.

The problem to be solved by the present invention is that, in the case of manufacturing such a hollow cylindrical metal honeycomb, the flat foil and the corrugated foil are fixed in advance by fixing the flat foil and the corrugated foil at a portion corresponding to the winding core portion. It is an object of the present invention to provide a winding device capable of continuously manufacturing a honeycomb structure with high efficiency for the purpose of shortening the time from the mounting to the winding step by simultaneously conveying the honeycomb structure.

[0008]

Means and Action for Solving the Problems The gist of the present invention is to wind a flat foil and a corrugated foil in a device for winding the flat foil and the corrugated foil in a cylindrical honeycomb shape by superposing them. In the previous step, it consisted of a threader for transporting flat foil and a threader for transporting corrugated foil, a guide for aligning the end faces of the sent flat foil and corrugated foil, and a mechanism for fixing the flat foil and corrugated foil. A characteristic device for winding a honeycomb structure.

Here, the guide for aligning the end faces of the flat foil and the corrugated foil is composed of a mechanism capable of reciprocating in the width direction of the foil, a mechanism capable of reciprocating in the front-rear direction, and a clamping mechanism for clamping the flat foil. . Further, the mechanism for fixing the corrugated foil and the flat foil comprises a mechanism capable of reciprocating up and down and back and forth, and a disc electrode or an electric resistance welding electrode such as spot welding.

According to the present invention, a flat foil is assembled by preliminarily fixing the corrugated foil tip to the flat foil at a position where a winding core having a length capable of forming one or more winding cores is secured to the flat foil by incorporating the flat foil into a winding shaft. The corrugated foil can be wound at the same time, and the step of attaching the corrugated foil to the core can be omitted from the preparatory step of winding and the processing time can be shortened.

In addition, the preliminary preparation step is an operation independent of the winding step, and the second winding preliminary step can be performed during the post-step operation such as fixing the honeycomb winding end and discharging, and the processing time is continuous. It can be shortened in the process.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings. Figure 1
The cylindrical metal honeycomb structure A according to the present invention (see FIG.
It is a bird's-eye view which shows the whole outline of the winding device used for manufacturing (shown in (b)). In the figure, reference numeral 1 denotes a winding shaft for alternately winding the flat foil 2 and the corrugated foil 3 which are stacked to form a cylindrical honeycomb structure A.

Reference numeral 4 is an end face alignment guide for aligning the left and right end faces of the flat foil and the corrugated foil. The end face alignment guides 4 are installed on both sides of the flat foil 2 and the corrugated foil 3 before being wound up, and one end thereof has a clamp piece 10 for clamping the flat foil and can be reciprocated back and forth by a cylinder (not shown). It has a mechanism.
The opposite side is provided with a mechanism that reciprocates in the width direction of the flat foil and the corrugated foil with the cylinder 5.

Reference numeral 6 denotes a flat foil cutting shear for cutting the flat foil 2 into a predetermined length, which is reciprocated by a cylinder (not shown). Reference numeral 7 is a flat foil threader for feeding the flat foil 2 sent from the flat foil supply unit through the transport roll 8 to the end face alignment guide 4, and has clamp pieces 9a, 9b for clamping the flat foil at the tip. It has a working cylinder (not shown) to move forward and backward.

Reference numeral 11 denotes a corrugated foil cutting shear for cutting the corrugated foil 3 into a predetermined length, which is reciprocated by a cylinder (not shown). Reference numeral 12 is a corrugated foil threader for supplying the corrugated foil 3 sent from the corrugated foil supply section through the transport roll 13 to the end face alignment guide 4, and clamp pieces 14a, 14b for clamping the corrugated foil at the tips. And the whole is moved forward and backward by an operating cylinder (not shown).

Reference numeral 15 is a disc electrode for electric resistance welding for fixing the flat foil and the corrugated foil provided above the position of the end face alignment guide 4. The disk electrode 15 reciprocates up and down and back and forth by a cylinder.

Next, a series of steps for manufacturing a cylindrical metal honeycomb structure using the illustrated apparatus will be described. The clamps 9a and 9b of the flat foil threader 7 clamp the flat foil 2, and the clamp 10 of the end face alignment guide 4 advances to a position where the flat foil 2 can be clamped. Here, after the clamp 10 clamps the flat foil 2, the clamps 9a and 9b are opened and the flat foil threader 7 retracts.

At this stage, the flat foil 2 can be slid by releasing the restraining force while the cylinder of the clamp 10 remains in the clamped position, and the cylinder 5 of the end face alignment guide 4 is reciprocally moved to the side opposite to the cylinder 5. Position the flat foil closely to the wall surface of. Then, the cylinder of the clamp 10 is again given a restraining force to securely clamp the flat foil 2.

Next, the clamp 14 of the corrugated foil threader 12 is used.
a, 14b clamps the corrugated foil 3 and advances the corrugated foil tip to a position where the flat foil 2 can secure a length capable of forming a core from the flat foil tip, and the clamping force of the clamps 14a, 14b is held at that position. solve. By this operation, since the corrugated foil 3 can be slid, the cylinder 5 of the end face alignment guide is reciprocally moved to closely position the corrugated foil on the wall surface opposite to the cylinder 5. After the positioning is completed, the clamps 14a and 14b restrain and fix the corrugated foil 3 again.

When the end faces of the flat foil and the corrugated foil are aligned, the disk electrode 15 for electric resistance welding descends, presses the corrugated foil 3 and moves backward to energize and weld the corrugated foil and the flat foil by about 30 mm. And retreat to the upper front. Further, the threader 12 retracts by opening the clamps 14a and 14b.

The flat foil 2 to which the corrugated foil 3 is fixed is moved by advancing the clamped end face alignment guide 4, and when it reaches the winding position, the flat foil is clamped by the clamps 16a and 16b. In this state, the winding shaft 1 advances to sandwich the flat foil. Then, the clamps 16a and 16b and the clamp 10 of the end face alignment guide open the flat foil and retract. After the retreat is completed, the winding shaft drive motor rotates to wind the flat foil and the corrugated foil at the same time to manufacture a cylindrical metal honeycomb structure.

Immediately before the winding of a predetermined length, the cutting shear 6
And 11 are operated to cut the flat foil 2 and the corrugated foil 3. Then, the remaining flat foil 2 and corrugated foil 3 are wound up, and the ends are fixed by spot welding with a spot welding torch (not shown). Next, after taking up the winding shaft 1 from the honeycomb structure, the structure is completed in the winding device and sent to the next step.

FIG. 2 shows the processing time when a cylindrical metal honeycomb body of a certain size is manufactured by the conventional winding device. In the figure, the vertical axis represents the rotation speed of the winding shaft,
The horizontal axis represents the elapsed time. Of the elapsed time, the process of supplying and winding the flat foil and the corrugated foil on the winding shaft is called a winding pre-process. Next, the step of rotating the winding shaft to wind the flat foil and the corrugated foil to form a honeycomb body is called a winding step. Finally, a step of cutting the flat foil and the corrugated foil, fixing the winding end by spot welding, removing the winding shaft, and then paying it out is called a post-treatment process.

In the conventional apparatus, it takes 32 seconds for the pre-process, 40 seconds for the winding process, and 35 seconds for the post-treatment process, and 1 process is required for all processes.
It took 07 seconds. However, in the device of the present invention, the pre-process is shortened to 16 seconds, the winding process is 40 seconds, and the post-treatment process is 35 seconds, which is the same as the pre-process for the next honeycomb body production during the post-treatment process. Since it can be carried out, the manufacturing time of one honeycomb body in the continuous manufacturing of the honeycomb body is shortened to 78 seconds. FIG. 3 shows the processing time when the device according to the present invention is used.

The shape and structure of each member used in the present invention or each drive mechanism is not limited to those shown in the drawings, and other shapes and structures may be used as long as they have the same function. Other known drive types can be substituted.

[0026]

As described above, according to the honeycomb structure winding device of the present invention, the winding work can be performed efficiently, and the productivity can be improved as compared with the conventional one.

[Brief description of drawings]

FIG. 1 is an overall schematic view showing an embodiment when the present invention is applied to a cylindrical honeycomb.

FIG. 2 shows a processing time when a cylindrical metal honeycomb body of a certain size is manufactured by a conventional winding device.

FIG. 3 shows the processing time when using the device according to the invention.

[Explanation of symbols]

1 Cylindrical Honeycomb Winding Shaft 2 Flat Foil 3 Corrugated Foil 4 End Face Alignment Guide 5 End Face Alignment Guide Driving Cylinder 6 Flat Foil Cutting Shear 7 Flat Foil Threader 8 Flat Foil Conveying Roll 9a, 9b Clamp Piece with Flat Foil Threader (9b) Is
It is on the opposite side of 9a across the flat foil. ) 10 clamp pieces with end face alignment guide 11 corrugated foil cutting shear 12 corrugated foil threader 13 corrugated foil transport rolls 14a, 14b clamp piece with corrugated foil threader (14
b is on the opposite side of 14a across the corrugated foil. ) 15 Disc electrodes for electric resistance welding 16a, 16b Winding shaft core guide mechanism

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication location B21D 47/00 C (72) Inventor Masao Yatsushiro 5-3 Tokai-cho, Tokai-shi, Aichi Prefecture Nippon Steel Stock company, Nagoya Works (72) Inventor, Hitoshi Ota 5-3 Tokai-cho, Tokai-shi, Aichi Nippon Steel Co., Ltd., Nagoya Works (72) Inventor, Tokuhiro Makino 1 Tsukiji-cho, Hachimansai-ku, Kitakyushu, Fukuoka No. 1 Takada Industry Co., Ltd.

Claims (3)

[Claims] 1. A device for winding a flat foil and a corrugated foil into a cylindrical honeycomb shape in a state where the flat foil and the corrugated foil are wound, and a threader for transporting the flat foil and a corrugated foil are transferred before the flat foil and the corrugated foil are wound. A device for winding a honeycomb structure, comprising: a threader, a guide for aligning the end faces of the sent flat foil and the corrugated foil, and a mechanism for fixing the flat foil and the corrugated foil together. 2. The guide for aligning the end faces of the flat foil and the corrugated foil comprises a mechanism capable of reciprocating in the width direction of the foil, a mechanism capable of reciprocating in the front-back direction, and a clamping mechanism for clamping the flat foil. The winding device according to Item 1. 3. The winding device according to claim 1, wherein the mechanism for fixing the flat foil and the corrugated foil comprises a mechanism capable of reciprocating up and down and back and forth, and an electric resistance welding electrode.