Abstract:
An applicator is disclosed for applying sealant to a moving substrate. The applicator includes a wheel having a periphery. A plurality of spaced apart footprints extends around the periphery of the wheel and each footprint has a sealant receiving feature. A reservoir is provided for containing a supply of sealant to be applied to the moving substrate. The wheel is rotatably mounted at least partially in the reservoir such that as the wheel rotates, each of the spaced apart footprints repeatedly moves through a supply of sealant in the reservoir to pick up a charge of sealant, around one side of the wheel toward the moving substrate, adjacent the moving substrate to transfer the sealant charge to the substrate, and around the other side of the wheel back toward the supply of sealant. At least one stop is formed on each of the footprints for inhibiting sealant picked up by the footprint from being urged rearwardly on the footprint by high speed rotation of the wheel. A backstop may be formed at a trailing end of each footprint and mid-stops may be formed between a leading end of each footprint and the trailing end.
Abstract:
A method and apparatus are described for controlling a coating head, which exerts a nip pressure to a fibrous web to be coated while the fibrous web is supported by a backing roll. An output signal of a sensor integrated within the backing roll is read, thus producing a measured indication of the nip pressure. A number of actuator control values are derived at least partly from said measured indication of the nip pressure. Said actuator control values are delivered as commands to a number of respective actuators that contribute to creating the nip pressure, to control an amount of a coating substance on the fibrous web in the coating head.
Abstract:
A roller cleaning assembly including: a main body support; and, a contact portion including an elongate cleaning surface for contacting an outside cylindrical surface of a roller, the contact portion being coupled to the main body support and moveable therefrom between a retracted position where the cleaning surface is remote from the roller and an engaged position where the cleaning surface is in contact with an outside cylindrical surface of the roller.
Abstract:
An edge banding machine includes a machine body unit having a mounting plate, a glue-applying unit, a glue-scratching unit and a transmission unit. The glue-applying unit includes a glue container mounted fixedly on the mounting plate, a supporting member disposed fixedly and directly above the glue container and a glue-applying roller rotatably extending into the glue container. The glue-scratching unit includes a rotating shaft disposed rotatably on the supporting member, a glue-scratching plate disposed fixedly on the rotating shaft and extending toward the glue-applying roller, an adjustment rod disposed adjustably on the cover, and a connecting member connected between the adjustment rod and the rotating shaft such that movement of the adjustment rod results in rotation of the rotating shaft.