Laminated solenoid plunger for solenoid assembly
First Claim
1. A solenoid plunger plate, comprising:
- first and second laminated stacks, each stack having a plurality of alignment cavities, each alignment cavity configured for receiving an alignment mechanism there through, wherein laminations within each stack are abutting adjacent laminations;
a center block having a plurality of alignment cavities, each alignment cavity configured to receive an alignment mechanism, the center block disposed between the first and second laminated stacks;
a clamp having a plurality of alignment cavities and configured to receive the first and second laminated stacks and the center block therein; and
a plurality of alignment mechanisms, each alignment mechanism being inserted into a respective clamp alignment cavity, a corresponding first stack alignment cavity, a corresponding second stack alignment cavity and a corresponding center block alignment cavity and configured to tighten the clamp against the first and second laminated stacks and the center block, wherein the first and second laminated stacks, center block and clamp together are aligned to provide a substantially flat face portion of the solenoid plunger plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A solenoid plunger for use in solenoid driven multi-line embossing systems is constructed of magnetic steel laminations that are attached to a center block which is machined to mount a solenoid shaft and anti-rotate pins. The laminations are attached to the center block with screws and vacuum epoxy glued for a very high cycle life. The laminated steel construction dramatically reduces eddy currents, which allows the magnetic field to rise and fall much more quickly than a conventional steel plunger. It also increases the magnetic force in the solenoid. This reduction in solenoid plunger eddy currents and increase of magnetic force in the solenoid structure itself operates to increase embosser throughput. The laminated steel construction further reduces embosser solenoid heating which also contributes to improved embossing control.
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Citations
20 Claims
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1. A solenoid plunger plate, comprising:
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first and second laminated stacks, each stack having a plurality of alignment cavities, each alignment cavity configured for receiving an alignment mechanism there through, wherein laminations within each stack are abutting adjacent laminations; a center block having a plurality of alignment cavities, each alignment cavity configured to receive an alignment mechanism, the center block disposed between the first and second laminated stacks; a clamp having a plurality of alignment cavities and configured to receive the first and second laminated stacks and the center block therein; and a plurality of alignment mechanisms, each alignment mechanism being inserted into a respective clamp alignment cavity, a corresponding first stack alignment cavity, a corresponding second stack alignment cavity and a corresponding center block alignment cavity and configured to tighten the clamp against the first and second laminated stacks and the center block, wherein the first and second laminated stacks, center block and clamp together are aligned to provide a substantially flat face portion of the solenoid plunger plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A solenoid plunger plate, comprising:
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first and second laminated stacks, each stack having a plurality of alignment cavities, each alignment cavity configured for receiving an alignment mechanism there through, wherein laminations within each stack are abutting adjacent laminations; a center block having a plurality of alignment cavities, each alignment cavity configured to receive an alignment mechanism, the center block disposed between the first and second laminated stacks; and a plurality of alignment mechanisms, each alignment mechanism being inserted into a respective first stack alignment cavity, a corresponding second stack alignment cavity and a corresponding center block alignment cavity and configured to secure the first and second laminated stacks against the center block, wherein the first and second laminated stacks and the center block together are aligned to provide a substantially flat face portion of the solenoid plunger plate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of operating a solenoid plunger plate, the method comprising:
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a first step of providing first and second laminated stacks, each stack having a plurality of alignment cavities, each alignment cavity configured for receiving an alignment mechanism there through, wherein laminations within each stack are abutting adjacent laminations; a center block having a plurality of alignment cavities, each alignment cavity configured to receive an alignment mechanism, the center block disposed between the first and second laminated stacks; and a plurality of alignment mechanisms, each alignment mechanism being inserted into a respective first stack alignment cavity, a corresponding second stack alignment cavity and a corresponding center block alignment cavity and configured to secure the first and second laminated stacks against the center block, wherein the first and second laminated stacks and the center block together are aligned to provide a substantially flat face portion of the solenoid plunger plate; a second step of slidably attaching the solenoid plunger plate to a solenoid body assembly such that the substantially flat face portion of the solenoid plunger faces the solenoid body assembly to formulate a solenoid structure; and a third step of activating the solenoid structure to selectively cycle the solenoid plunger plate toward and away from the solenoid body assembly.
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Specification