JPWO2020174397A5

JPWO2020174397A5 -

Info

Publication number: JPWO2020174397A5
Application number: JP2021549592A
Authority: JP
Publication date: 2023-03-06

Claims

A dispensing system,
a dispensing head,
a barrel having one or more heating elements;
an inlet extending through the side of the barrel for receiving filament glue;
a spout at the distal end of the barrel for dispensing the filament adhesive in molten form;
a rotatable screw received within the barrel, the rotatable screw having at least one mixing element;
a dispensing head comprising
a filament adhesive configured to be received within the inlet of the dispensing head.

2. The dispensing system of Claim 1, wherein the at least one mixing element comprises a plurality of posts disposed on a rotatable shaft.

A dispensing system,
a dispensing head,
a barrel having one or more heating elements;
an inlet extending through the side of the barrel for receiving filament glue;
a spout at the distal end of the barrel for dispensing the filament adhesive in molten form;
a rotatable screw received within the barrel;
a dispensing head comprising
and a filament adhesive configured to be received within the inlet of the dispensing head, the filament adhesive comprising a core-sheath adhesive.

4. The dispensing system of Claim 3, wherein the core sheath adhesive has a sheath that is non-tacky at ambient temperature.

5. The inlet of any of claims 1-4 , wherein the inlet has an angled nip point partially defined by a forward sidewall surface of the inlet that extends at an acute angle to the longitudinal axis of the rotatable screw. 1. The dispensing system according to item 1.

6. The dispensing system of claim 5 , wherein said acute angle is between 13 degrees and 53 degrees.

The dispensing system of any one of claims 1-6 , wherein the inlet extends along a nominal screw length of the rotatable screw between 10% and 40%.

A dispensing system according to any preceding claim, wherein the rotatable screw further comprises a feed element adjacent the inlet, the feed element comprising a plurality of gripping lugs .

A dispensing system according to any preceding claim, wherein the rotatable screw has a length:diameter ratio of 8:1 to 20 :1.

The dispensing system of any one of claims 1-9 , further comprising a drive mechanism operably coupled to the rotatable screw.

11. Any one of claims 1-10 , further comprising a spool capable of continuously dispensing the filament adhesive while the filament adhesive is received within the inlet of the dispensing head. A dispensing system as described in .

12. The dispensing system of claim 11 , wherein said spool is connected to said dispensing head.

A dispensing system according to any preceding claim, further comprising a movable arm, the dispensing head being coupled to a distal end of the movable arm.