Fluid pump and cartridge

摘要

In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of the feed screw to enhance consistency in material flow through the cartridge. The feed screw is preferably driven by a closed-loop servo motor to achieve high-performance dispensing resolution. The assembly is preferably compatible with fixed-z and floating-z cartridges.

主权项

1. A fluid dispensing pump, comprising:
a pump housing having a cartridge cavity at a bottom portion of the pump housing; a removable cartridge assembly positioned in the cartridge cavity, the cartridge assembly including a fluid inlet, a fluid outlet, and a fluid delivery mechanism that delivers fluid from the fluid inlet to the fluid outlet, the fluid outlet having a fluid path that extends along a fluid path axis, wherein the pump housing has a side wall that is parallel to the fluid path axis; and an attachment mechanism removably coupled to the side wall of the pump housing, the attachment mechanism including a locking mechanism that releasably attaches the fluid dispensing pump to a pump dispensing frame, wherein the locking mechanism further includes a spring loaded lever and a lock pin capture that includes a clasp, wherein the locking mechanism is spaced apart from the fluid path axis, wherein the lock pin capture includes an axis of extension that extends in a direction that is perpendicular to the fluid path axis when the cartridge is attached to the side wall of the pump housing, and wherein the spring loaded lever engages the clasp in the lock pin capture to releasably attach a release bracket coupled to the side wall of the pump housing to a release bracket plate coupled to the pump dispensing frame.