According to one embodiment, a coating head includes a coating bar, nozzles, a first member, second members, third members, elastic members, and a position controller. The coating bar faces a coating member. The nozzles supply a liquid toward the coating bar. The first member includes first recesses. A portion of the nozzles is between the first recesses and the third members. The portion of the nozzles and the third members are fixed to the first member by the second members. The elastic members are located in at least first, second, or third positions. The first position is between the third members and the second members. The second position is between the portion of the first recesses and the nozzles. The third position is between the portion of the nozzles and the third members. The position controller controls a relative position between the coating bar and the nozzles.

An apparatus is disclosed for coating a surface that is movable relative to the apparatus with a layer of metallic particles or particles having a metal-like appearance and reflectivity, the particles adhering more strongly to the surface than to one another. The apparatus comprises at least one spray head for directly or indirectly applying to the surface a fluid stream within which the particles are suspended, a housing surrounding the spray head(s) and defining an interior plenum for confining the fluid stream, the housing having a rim adjacent the surface that is configured to prevent egress of particles from a sealing gap defined between the rim of the housing and the surface to be coated, and a suction source connected to the housing to extract from the plenum the sprayed fluid and particles suspended in the sprayed fluid. In operation, the suction source extracts substantially all particles that are not in direct contact with the surface, so as to leave only a substantially single particle layer adhering to the surface on exiting the apparatus.

A system may include: a coating form roller; a metering roller adjacent to the coating form roller; and a sealing chamber. The sealing chamber may include first and second blades that engage with the coating form roller and the metering roller, respectively.

A system for lacquer transfer is disclose having a device for lacquer transfer. The device includes a frame, a transfer roller with a circumferential lateral wall, and a slit nozzle for dispensing lacquer. The slit nozzle is connected to the frame. An outside contact surface of the lateral wall includes several depressions. The transfer roller is mounted rotatably to the frame. The slit nozzle is arranged contactless to or in direct contact with the outside contact surface of the lateral wall for dispensing lacquer into respective depressions in the lateral wall while the transfer roller is rotated. The transfer roller is configured to roll with the outside contact surface on a work surface of a work piece for transferring the lacquer from the depressions to the work surface.

Systems and methods in which dot-like portions of a material (e.g., a viscous material such as a solder paste) are printed or otherwise transferred onto an intermediate substrate at a first printing unit, the intermediate substrate having the dot-like portions of material printed thereon is transferred to a second printing unit, and the dot-like portions of material are transferred from the intermediate substrate to a final substrate at the second printing unit. Optionally, the first printing unit includes a coating system that creates a uniform layer of the material on a donor substrate, and the material is transferred in the individual dot-like portions from the donor substrate onto the intermediate substrate at the first printing unit. Each of the first and second printing units may employ a variety of printing or other transfer technologies. The system may also include material curing and imaging units to aid in the overall process.

A device is disclosed including a frame, a transfer roller with a circumferential lateral wall, a drive unit, a slit nozzle with a muzzle end for dispensing lacquer, and a deformation unit. The slit nozzle and the deformation unit are each connected to the frame, and an outside contact surface of the lateral wall includes several depressions, the transfer roller is mounted rotatably about an axis of rotation at the frame. The drive unit is configured to drive the transfer roller in a rotation direction of the transfer roller, such that the lateral wall continuously passes through a first angular range and the second angular range, each fixed to the frame. The deformation unit is arranged to elastically deform the lateral wall resulting in a respective first deformation section of the lateral wall passing through the first angular range and a respective second deformation section of the lateral wall passing through the second angular range.

Controlling application of adhesive on a substrate includes using a gas sensor, obtaining a first sensor signal. The first sensor signal indicates a partial pressure of a gas that arises from a constituent of the adhesive. Based at least in part on this partial pressure, the controller either controls an applicator's delivery of the adhesive to a substrate or causes an error signal indicative of the adhesive's unsuitability for adhesion.

A doctor blade, intended for a doctor blade chamber (6) for a flexography printing unit (1) equipped with a screened cylinder (4), presents in the form of a rectangular blade, with a functional longitudinal side (34) of which a longitudinal edge is capable of making contact with the screened cylinder (4), a longitudinal fastening side (33) and two lateral sides (36, 37). The doctor blade comprises at least one opening located towards the functional longitudinal side (34) and towards the first of the two lateral sides (36, 37).

A glue applying mechanism of an edge banding machine for applying glue to an oblique surface and a vertical surface of a workpiece includes a base including a glue tub, and a glue applying unit rotatably disposed on the glue tub and including a glue shaft and an obliquely glue applying member connected to the top end of the glue shaft and having a glue applying surface which is a tapered surface with a wide top and a narrow bottom. At least the partial top of the glue shaft and the glue applying surface are exposed outside the glue tub. The glue applying unit is rotatable to extract the glue in the glue tub to the outer surface of the glue shaft and the glue applying surface, enabling the glue to be applied to the oblique and vertical surfaces of the workpiece simultaneously by only one glue applying mechanism.

A device for lacquer transfer is disclosed having a frame, a nozzle with a dispensing end for dispensing lacquer, and a transfer roller with a circumferential lateral wall, a circumferential outer contact surface of the lateral wall comprises several depressions, wherein the nozzle and the transfer roller are arranged such that lacquer is dispensable from the dispensing end onto the outer contact surface and into the depressions, wherein the transfer roller is configured to roll with the outer contact surface on a work surface of a workpiece for transferring the lacquer from the outer contact surface and from the depressions to the work surface of the workpiece. A first hardening unit is formed as a UV-light unit configured for partially hardening the lacquer in a contactless way by emitting UV-light, the first hardening unit is arranged within an interior space defined by the transfer roller. The lateral wall of the transfer roller is transparent for UV-light, and the first hardening unit is arranged such that UV-light is emittable towards the work surface in a first operational area of the work surface to partially harden the lacquer in the first operational area.