US 10,500,604 B2 · Liquid adhesive dispensing system

Abstract

A dispenser for dispensing a liquid onto a substrate is disclosed. The dispenser includes a dispenser module including a nozzle body having an inlet, an outlet, a chamber for receiving a liquid, and a central valve body attached to the nozzle body. The central valve body defines a piston chamber. The dispenser module also includes a valve member having a piston portion disposed within the piston chamber of the central valve body and a needle portion extending form the piston portion into the chamber of the nozzle body. The dispenser also includes a heater block for heating the nozzle body, where the heater block defines a liquid passage for transporting liquid from the liquid supply to the dispenser. A first surface of the heater block directly contacts the nozzle body, and the entirety of the central valve body is spaced from the heater block. The dispenser also includes a stroke adjustment assembly comprising an adjustment rod configured to contact the valve member and a locking collar configured to alternate between an unlocked and a locked configuration.

Claims11

Dependent claims

A liquid dispenser module, comprising:

a housing including an inlet, an outlet, and a chamber in communication with the inlet and the outlet for receiving a liquid;
a valve member configured to be actuated from a first position to a second position so as to jet an amount of the liquid from the chamber through the outlet, wherein the first and second positions are separated by a stroke length;
and
a stroke adjustment assembly comprising:
an adjustment rod that includes external threads and is configured to contact the valve member;
and
a locking collar that includes internal threads and is configured to alternate between an unlocked and a locked configuration, wherein 1) when the locking collar is expanded into the unlocked configuration, the adjustment rod is movable relative to the locking collar to adjust the stroke length, and 2) when the locking collar is compressed into the locked configuration, the internal threads of the locking collar apply a locking force to the external threads of the adjustment rod so as to prevent the adjustment rod from moving relative to the locking collar.

4 more elements

Dependencies are inferred from the claim text.

Liquid adhesive dispensing system

Life of this patent

Liquid adhesive dispensing system

Life of this patent

Abstract

Claims11