초록 ▼

An apparatus for ensuring that the flute tips of a corrugated web receive a certain amount of glue before having the second liner thereto. The apparatus includes a hollow air bar, formed by an outside wall and two end caps, which replaces the conventional rider roll in the corrugating machine. A sou

An apparatus for ensuring that the flute tips of a corrugated web receive a certain amount of glue before having the second liner thereto. The apparatus includes a hollow air bar, formed by an outside wall and two end caps, which replaces the conventional rider roll in the corrugating machine. A source of air, such as a pump, is connected to the air bar for supplying air to it. Air outlets on the side of the air bar facing the web allows the air to impact against the web and hold the web against the conventional applicator roll so that glue is applied properly to the flute tips of the web. Means are provided for directing the air escaping from the outlets more directly against the web, and for adjusting the effective length of the air bar to approximately match the width of the web being processed. This latter function is accomplished by placing air plugs within the air bar and moving the plugs to the proper position in the air bar such that the outlets outside the width of the web are cut off from the source of air, while those within the width of the web are supplied with air.

대표청구항 ▼

An apparatus for applying glue to the flute tips of the corrugated medium of a web, comprising: frame means for providing support to the various other parts, having a tank containing glue which tank has an open top; an applicator roll, journaled in said frame means and partially submerged in the glu

An apparatus for applying glue to the flute tips of the corrugated medium of a web, comprising: frame means for providing support to the various other parts, having a tank containing glue which tank has an open top; an applicator roll, journaled in said frame means and partially submerged in the glue in said tank, which roll turns at approximately the same speed as the web moves through the machine; an air bar, communicating with a source of air, disposed behind the web with respect to said applicator roll, and having outlets for allowing the air to escape from said air bar and impact on the web; and flexible gasket means attached to the surface of said air bar for directing the escaping air more directly against the web; such that the flute tips are forced against said applicator roll by the escaping air and a small amount of glue is applied to the flute tips.