High-speed RFID circuit placement device
First Claim
1. A placement device comprising:
- at least one primary drum having at least one primary nozzle along a circumferential surface;
at least one secondary drum having at least one secondary nozzle along a circumferential surface;
at least one motor operatively coupled to at least one of the drums;
wherein peripheral speeds of the drums are substantially equal when an axis of one of the primary nozzles is aligned with an axis of one of the secondary nozzles,wherein the at least one secondary drum rotates at a variable rate that is a function of whether an axis of a secondary nozzle is aligned with an axis of a primary nozzle; and
wherein, in rotation, the secondary drum rotates at a minimum speed when the axis of the secondary nozzle is aligned with the axis of the primary nozzle.
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Accused Products
Abstract
A high-speed process includes removing chips or interposers from a carrier web having a first pitch and transferring the chips or interposers to electrical components, such as RFID antenna structures, on a moving web having a second pitch. According to one method, a transfer drum transfers chips or interposers to a moving web of electrical components by picking a chip when the transfer drum is stationary, and transferring the chip to the moving web when the transfer drum is rotating such that a tangential velocity of the transfer drum is substantially equal to the linear velocity of the moving web. According to another method, a primary drum removes chips or interposers from a carrier web having a first pitch, and transfers the chips or interposers to a variably rotating secondary drum which then places the chips or interposers onto an electrical component on a moving web having a second pitch.
189 Citations
13 Claims
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1. A placement device comprising:
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at least one primary drum having at least one primary nozzle along a circumferential surface; at least one secondary drum having at least one secondary nozzle along a circumferential surface; at least one motor operatively coupled to at least one of the drums; wherein peripheral speeds of the drums are substantially equal when an axis of one of the primary nozzles is aligned with an axis of one of the secondary nozzles, wherein the at least one secondary drum rotates at a variable rate that is a function of whether an axis of a secondary nozzle is aligned with an axis of a primary nozzle; and wherein, in rotation, the secondary drum rotates at a minimum speed when the axis of the secondary nozzle is aligned with the axis of the primary nozzle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A placement device comprising:
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at least one primary rotary placement device having at least one primary nozzle along a circumferential surface; at least one secondary rotary placement device having at least one secondary nozzle along a circumferential surface; at least one motor operatively coupled to at least one of the rotary placement devices; wherein peripheral speeds of the rotary placement devices are substantially equal when an axis of one of the primary nozzles is aligned with an axis of one of the secondary nozzles, wherein the at least one secondary rotary placement device rotates at a variable rate that is a function of whether an axis of a secondary nozzle is aligned with an axis of a primary nozzle; and wherein, in rotation, the secondary rotary placement device rotates at a minimum speed when the axis of the secondary nozzle is aligned with the axis of the primary nozzle.
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Specification