One-step rotary forming of uniform expanded mesh

A technology of expanded metal and shaped plate, which is applied in the single-step manufacturing method and equipment field of expanded metal, and can solve the problems of corrugation of the plate, the lack of attention of the plate, and the inability to realize the grid design and grid composition, etc.
CN1642670AInactive Publication Date: 2005-07-20TBS美国公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TBS美国公司
Publication Date
2005-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

A single step method and apparatus for the production of expanded metal mesh from deformable metal strip such as lead or lead-alloy strip for use in lead-acid battery manufacture. The apparatus comprises a pair of opposed rolls (116, 118) each having a plurality of spaced discs (122, 124) having opposite side walls and circumferential, equally spaced, convexly shaped tool surfaces alternating with substantially flat surfaces, said discs having radial notches formed in the opposite sidewalls of alternate circumferential flat surfaces, whereby peripheral surfaces of opposing rolls are adapted to interact on deformable strip passing therebetween to concurrently slit and form convex wire segments and alternate nodes in said strip by intermeshing of said shaped tool surfaces. The method includes concurrently slitting and forming transverse rows of elongated, convexly-shaped wire segments deformed out of the plane of the strip with laterally adjacent wire segments extending from opposite sides of the plane of the strip, the lateral rows separated by alternately slit segments retained in the plane of the strip together defining nodes extending laterally across the strip.
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Description

technical field

[0001] The present invention relates to a method and apparatus for manufacturing expanded metal. More specifically, it relates to a single-step fabrication method and apparatus for the production of expanded metal for lead-acid batteries. Background technique

[0002] The prior art discloses rotary methods of manufacturing grids used in battery plate production. The method uses a sequential set of tools, with the strip being pre-machined and cut in the first step and the strip cut being completed in the second step. Sequential methods have inherent synchronization issues with steps, such as crimp to crimp, requiring specific alignment and following considerations.

[0003] The sequential approach uses different tools at different steps, with the result that the lead strip is not "handled symmetrically", with opposite sides of the strip not always facing the same pressures, forces, stretches, and the like, evenly and simultaneously. In a predominantly prior...

Claims

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