JPS638862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for corrugating a metal mesh used in a cushion, etc. that elastically holds a monolith catalyst of a catalytic converter for purifying automobile exhaust gas in a case. In particular, it relates to a device for applying diagonal corrugation.

To continuously apply diagonal corrugation to a long cylindrical metal mesh, there is a method in which the radially flattened metal mesh is passed between helical gear-shaped corrugation rollers that rotate while meshing with each other. However, since a thrust force is applied when the mesh is passed through the corrugating roller, there is a problem in that the metal mesh is pushed toward one end of the corrugating roller, resulting in uneven finished width.

SUMMARY OF THE INVENTION An object of the present invention is to provide a corrugating device for metal mesh that solves these problems and allows the mesh to be finished to a constant width.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In the figure, 2 and 2 are metal mesh a, which will be described later.
A pair of upper and lower corrugated rollers are pivotally supported on a frame 1 at an oblique angle with respect to the conveying direction of the rollers. They are interlocked with each other with a slightly larger backlash, one of which is driven at a constant speed by a motor (not shown), and the other is driven by this. The rear part of the corrugated roller pair 2, 2 in the conveying direction of the metal mesh a is made of an elastic material such as rubber, and has a groove 31 in the center.
A pair of upper and lower tension imparting rollers 3, 3 are disposed around the frame 1 and are pivoted on the frame 1 so as to be perpendicular to the direction of transport of the metal mesh a, and the mutual spacing can be adjusted. It is designed to be driven at a peripheral speed lower than that of the corrugated roller 2 by a motor (not shown). Further, behind the tension applying rollers 3, 3 in the direction of transport of the metal mesh a, a pair of upper and lower support rollers 4, 4 made of steel and having a groove 41 circumferentially provided in the center are arranged at right angles to the direction of transport of the metal mesh a. None, and they are pivotally supported by the frame 1 so that the mutual spacing can be adjusted.

Reference numeral 5 denotes a guide plate which is used by being inserted into a cylindrical metal mesh a, and as shown in detail in FIG.
is fixed at a right angle, and a block 53 is fixed at a right angle in front of the block 53. A pair of upper and lower wheels 54, 54 are pivotally supported on the front surface of both ends of the block 53.
The upper and lower surfaces of 3 are connected to the blade plate 52 by slopes 55, 55.
is connected to both the top and bottom of the At the front of the block 53, there are beveled edges 57, 5 that extend forward on both rear sides.
The wide center plate 56 formed with the number 7 is the through plate 51.
Disks 58, 58 are fixed to both sides of the front end thereof, with parts of the plate protruding outwardly, and furthermore, to the front end of the through plate 51 in front of the center plate 56, disks 58, 58 are fixed to both sides of the front end. Beveled edges 60, 60 that spread forward
is formed, and a tip plate 59, which is slightly narrower than the center plate 56 and has a recess 61 formed in the center of the front edge at an oblique angle with respect to the passage plate 51, is oriented laterally at a small angle with respect to the passage plate 51. The block 53 and the center plate 56 and between the center plate 56 and the tip plate 59 are provided with a through plate 51, respectively.
The portions of the disks 58, 58 on both sides of the front end of the central plate 56 and the front end of the tip plate 59 form widened portions 64, 65, respectively.

Next, the operation of this embodiment will be explained. First, the opening at the tip of the metal mesh a knitted into an elongated cylindrical shape using thin stainless steel wire is stretched laterally, the guide plate 5 is inserted, and the pair of tensioning rollers 3, 3, the pair of supporting rollers 4, 4, and the front and rear narrow width portions 63, 62 are aligned with the grooves 3 of the tensioning roller pair 3, 3 and the support roller pair 4, 4, respectively.
1, 41 and each roller pair 3, 3 and 4,
4, the tension applying roller pair 3,
3 presses the metal mesh a from both upper and lower sides, and the pair of support rollers 4, 4 sandwich the metal mesh a and make them correspond to each other at small intervals. Here, as shown in FIGS. 1 and 2, when the pair of rolling wheels 54, 54 on both sides, which are pivotally supported by the block 53 of the guide plate 5, are pressed against the rear surface of the pair of supporting rollers 4, 4 through the metal mesh a. , center plate 5
The front edge of the tip plate 59 faces the immediate rear surface of the tension applying roller pair 3, 3, and the front edge of the tip plate 59 faces the immediate rear surface of the corrugated roller pair 2, 2. Then, the tip of the metal mesh a is attached to a pair of corrugated rollers 2, 2.
When started, the metal mesh a is stretched laterally by the wing piece 52 at the rear end of the guide plate 5 and passes around the block 53, and the upper and lower surfaces meet the left and right roller pairs 54, 54. The center plate 56 passes between the pair of support rollers 4, 4 and is widened by the widening portion 64 at the tip of the center plate 56, and immediately thereafter is held between the pair of tensioning rollers 3, 3 to prevent width reduction, and the pair of tensioning rollers 3 . attached roller pair 2,
2 while bending the conveying direction, plastic deformation occurs between the engagement of the concave and convex portions of the upper and lower teeth of the pair of corrugating rollers, and corrugation b having a continuous approximately triangular cross section is applied. In the above, the guide plate 5 is given a forward moving force by the frictional force with the metal mesh a that is transferred forward, and the rolling wheels 54, 54 on both sides of the block 53 are moved through the metal mesh a. The support roller pair 4, 4 is touched and the front and rear narrow width parts 63, 6
2 is fitted into the grooves 31, 41 of the tension applying roller pair 3, 3 and the support roller pair 4, 4,
It is held in a fixed position without moving back and forth or laterally. Further, since the metal mesh a is knitted, it has the property of shrinking in the radial direction, but there is a slope 5 behind the block 53 of the guide plate 5.
5, 55 are formed, and beveled edges 57, 57, 60, 60 are formed on both rear sides of the center plate 56 and the tip plate 59.
is formed, and furthermore, disks 58, 58 are fixed to both sides of the widened portion 64 of the center plate 56.
The metal mesh a passes smoothly around the guide plate 5, is accurately determined in width and position by the widened portion 65 of the tip plate 59, and is subjected to thrust force when passing through the pair of corrugated rolls 2, 2. However, the corrugation b can be applied while maintaining the correct width without causing any lateral deviation.

In the above embodiment, the gap between the pair of support rollers 4, 4 may be increased, and the narrow portion 62 on the rear side of the guide plate 5 and the groove 41 of the pair of support rollers 4, 4 that fit therein may be omitted. In this case, the position of the guide plate 5 is determined by the engagement between the pair of rolling wheels 54, 54 on both sides of the block 53 and the pair of support rollers 4, 4, and the narrow part 63 on the front side.
This can be achieved by fitting the grooves 31 of the pair of tensioning rollers 3, 3.

As specifically explained in the examples above,
The metal mesh corrugating device of the present invention flattens a metal mesh knitted in a long cylindrical shape in the radial direction,
In a metal mesh corrugating device for applying corrugation in an oblique direction by passing the metal mesh between a pair of helical gear-shaped corrugating rollers that rotate while meshing with each other, the metal mesh of the pair of corrugating rollers is A pair of tension applying rollers that pinch and press the metal mesh and rotate at a lower circumferential speed than the pair of corrugated rollers, and a pair of corresponding support rollers on both sides of the metal mesh are sequentially arranged at the rear in the mesh transport direction. At the same time, a guide plate inserted into the metal mesh is provided, and the guide plate has separate widened portions facing the rear surfaces of the pair of corrugated rollers and the rear surfaces of the pair of tensioning rollers, respectively, and The gist includes a narrow portion that is inserted into a groove provided around the pair of tension applying rollers, and an engaging member that engages with the rear surface of the pair of support rollers via the metal mesh. The guide plate is formed by the engagement between the rear surface of the support roller pair and the engagement member (the roller pair 54, 54 in the above embodiment) and the fit between the groove formed in the tensioning roller pair and the narrow portion. 5 is held at a fixed position, and its widened portion faces the rear surface of the tensioning roller pair and the rear surface of the corrugating roller pair. Even when a thrust force is applied when passing through the pair of corrugating rollers, side slipping does not occur, and accurate corrugation can be achieved.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is an enlarged perspective view of the guide plate, and FIG. 4 is a corrugated FIG. 2 is a perspective view of a metal mesh provided with 2: Corrugated roller, 3: Tension imparting roller,
31: groove, 4: support roller, 5: guide plate, 54:
Rolling wheel (engaging member), 6: narrow part, 64, 65: widened part, a: metal mesh, b: corrugated.

Claims (1)

[Claims] 1. A metal mesh knitted into a long cylindrical shape is flattened in the radial direction, and the metal mesh is passed between a pair of helical gear-shaped corrugating rollers that rotate while meshing with each other to apply diagonal corrugation. In the metal mesh corrugating device, a pair of tensioning rollers that clamp the metal mesh and rotate at a peripheral speed lower than that of the pair of corrugating rollers are provided behind the pair of corrugating rollers in the metal mesh transporting direction; A pair of corresponding support rollers are sequentially arranged on both sides of the metal mesh, and a guide plate inserted into the metal mesh is provided, and the guide plate connects the rear surface of the pair of corrugated rollers and the pair of corrugated rollers. separate widened portions facing the rear surfaces of the tension applying rollers; narrow portions inserted into grooves provided around the pair of tension applying rollers; 1. A corrugating device for metal mesh, characterized in that it has an engaging member that engages with the metal mesh.