Adhesive dispenser

An adhesive dispenser for dispensing adhesive onto a substrate, the dispenser comprising:

• a valve body having an adhesive supply passage;
• a first plurality of distribution passages formed in said valve body, at least some of said first plurality of distribution passages communicating with said supply passage at first ends thereof, each of said first plurality of distribution passages opening onto a first surface of said valve body at second ends thereof;
• a valve block mounted for sliding movement along the first surface of said valve body, said valve block including a second plurality of distribution passages, said second plurality of distribution passages having first ends opening toward said valve body and second ends adapted to dispense the adhesive onto the substrate;
• an actuator assembly operative to move the valve block between a closed position and an open position, the open position being a position in which the first ends of the second plurality of distribution passages are aligned with, and are in fluid communication with, the second ends of the first plurality of distribution passages, and the closed position being a position in which the first ends of the second plurality of the distribution passages are not aligned with, and are not in fluid communication with, the second ends of the first plurality of distribution passages;
• and
• a dosing rod disposed at least partially within said adhesive supply passage;
• wherein
• said dosing rod is translatable within said supply passage and the number of said first plurality of distribution passages that communicate with said supply passage is determined by the position of said dosing rod within said passage.

An adhesive dispenser for dispensing adhesive onto a substrate, the dispenser comprising:

• a valve body having an adhesive supply passage;
• a first plurality of distribution passages formed in said valve body, at least some of said first plurality of distribution passages communicating with said supply passage at first ends thereof, each of said first plurality of distribution passages opening onto a first surface of said valve body at second ends thereof;
• a valve block mounted for sliding movement along the first surface of said valve body, said valve block including a second plurality of distribution passages, said second plurality of distribution passages having first ends opening toward said valve body and second ends adapted to dispense the adhesive onto the substrate;
• an actuator assembly operative to move the valve block between a closed position and an open position, the open position being a position in which the first ends of the second plurality of distribution passages are aligned with, and are in fluid communication with, the second ends of the first plurality of distribution passages, and the closed position being a position in which the first ends of the second plurality of the distribution passages are not aligned with, and are not in fluid communication with, the second ends of the first plurality of distribution passages;
• a first plurality of bores formed in said valve body;
• and
• a second plurality of bores formed in said valve block, said second plurality of bores being generally aligned with said first plurality of said bores;
• a plurality of mounting elements disposed in said first and second pluralities of said bores, said mounting elements being pivotal therein to accommodate sliding movement of said valve block relative to said valve body.

An adhesive dispenser for dispensing adhesive onto a substrate, the dispenser comprising:

• a valve body having an adhesive supply passage;
• a first plurality of distribution passages formed in said valve body, at least some of said first plurality of distribution passages communicating with said supply passage at first ends thereof, each of said first plurality of distribution passages opening onto a first surface of said valve body at second ends thereof;
• a valve block mounted for sliding movement along the first surface of said valve body, said valve block including a second plurality of distribution passages, said second plurality of distribution passages having first ends opening toward said valve body and second ends adapted to dispense the adhesive onto the substrate;
• an actuator assembly operative to move the valve block between a closed position and an open position, the open position being a position in which the first ends of the second plurality of distribution passages are aligned with, and are in fluid communication with, the second ends of the first plurality of distribution passages, and the closed position being a position in which the first ends of the second plurality of the distribution passages are not aligned with, and are not in fluid communication with, the second ends of the first plurality of distribution passages;
• and
• a plurality of rollers rotatably mounted on said valve body, said rollers being operatively effective for guiding the substrate as it moves relative to said dispenser.