A heat exchange device for heating liquid adhesive material to an application temperature suitable for an adhesive bonding application includes a body having an inlet configured to receive a flow of liquid adhesive material and an outlet configured to provide the liquid adhesive material to a dispensing device for the adhesive bonding application. A fluid passageway in the body connects the inlet and the outlet. The fluid passageway includes a thin slit section in the form of an elongated ring shape, having a length along a fluid flow direction between the inlet and the outlet, the thin slit section further having a first dimension and a second dimension transverse to the fluid flow direction. The first dimension and the length are substantially greater than the second dimension. The heat exchange device further includes a heating element for heating the liquid adhesive material flowing through the thin slit section.

A preform coating device is provided with: a conveyance part that conveys a preform; a dispenser that discharges a coating liquid toward the preform; a drier that is disposed along the conveyance route of the conveyance part so as to be separated from the dispenser, and that dries the coating liquid applied to the preform by irradiating, with infrared rays, the coating liquid applied to the preform; and a first air sending mechanism that sends air, toward the preform, for inhibiting the temperature of the preform from rising at the position where the preform is irradiated with infrared rays by the drier.

An apparatus for preparing a liquid material containing microbubbles includes a dispensing nozzle and a first positive displacement gas pump. The dispensing nozzles includes a material mixing channel, a rotary gas diffuser positioned in the material mixing channel, and a rotary mixer positioned in the material mixing channel downstream of the rotary gas diffuser. The rotary gas diffuser and the rotary mixer rotate about a common axis of rotation. The first positive displacement pump has a first gas outlet opening to the material mixing channel, which is directed at an outer circumference of the rotary gas diffuser.

An integral melter and pump assembly or system, and a method of making the same, is disclosed wherein the pump assembly comprises a melter housing having a melter container defined within the melter housing. A pump mounting plate is integrally mounted within a side wall portion of the melter container and an output dispensing supply pump is mounted directly upon an external surface portion of the pump mounting plate in a surface-to-surface manner such that heat generated internally within the melter container is effectively transferred by conduction from the melter container and through the pump mounting plate such that the temperature level of the output pump is elevated to, and maintained at, a predeterminedly desired level even when the pump, is not disposed in its output dispensing mode. In addition, since the output dispensing or material supply pump is disposed externally of the melter container and the melter housing, the output dispensing or material supply pump is easily and readily accessible in case maintenance becomes necessary. Optionally, an oil jacket or chamber can surround the melter container so as to more evenly or consistently provide heating of the melter container.

An apparatus for melting and dispensing thermoplastic material is provided that includes an un-heated hopper having an inlet for receiving particles of a thermoplastic material and an outlet for discharging the particles and a heated manifold including at least one cavity formed therein and having an inlet and an outlet the inlet communicating with the outlet of the hopper for receipt of the particles from the hopper. The hopper is disposed external of the heated manifold. The heated manifold is effective for melting the particles into molten thermoplastic material therein. The apparatus further includes a pump having an inlet in fluid communication with the cavity. An outlet of the pump is in fluid communication with an inlet of a dispenser and an outlet of the dispenser is effective for dispensing the molten thermoplastic material therethrough.

A seal agent coating device is disclosed, comprising: a storage cavity, a nozzle, a connecting duct and a power driven component, wherein: the nozzle comprises a nozzle cavity and a mouth, the mouth being located at the lower part of the nozzle cavity and matching with the shape of the seal agent coating area of the substrate; the connecting duct interconnects the storage cavity and the nozzle cavity; the power driven component can squeeze the seal agent in the storage cavity into the nozzle cavity via the connecting duct, thereby squeezing it out via the mouth.

An apparatus includes a hopper configured to receive a plurality of solder microspheres, and a moveable singulation device positioned proximate to and below the hopper. The moveable singulation device is configured to receive the plurality of solder microspheres from the hopper as the plurality of microspheres exit the hopper. The movable singulation device includes a plurality of holes, with each of the plurality of holes configured to receive a single solder microsphere of the plurality of solder micro spheres. The apparatus further includes a piezoelectric vibration device configured to provide ultrasonic vibrations to the singulation device, thereby preventing agglomeration of the plurality of solder microspheres in the hopper.

The invention relates to a dosing system (1) for a dosing material having a dosing device (5) with a housing (11), the housing (11) comprising a feed channel (80) for dosing material, a nozzle (40), a discharge element (31) and an actuator unit (10) coupled to the discharge element (31) and/or the nozzle (40). The dosing device (5) further comprises a dosing material reservoir (70) which is coupled to the housing (11) or integrated into the housing (11). The dosing system (1) has a plurality of temperature control devices (2, 2′, 2″) which are each assigned to different temperature zones (6, 6′, 6″) of the dosing system (1) in order to control the temperature zones (6, 6′, 6″) differently. At least one first temperature zone (6) is assigned to the dosing material reservoir (70) and at least one second temperature zone (6″) is assigned to the nozzle (40). Preferably, at least one of the temperature control devices (2, 2′, 2″), preferably at least the temperature control device (2) assigned to the dosing material reservoir (6), comprises a cooling device (3, 3′, 3″) having a cold source (93, 93′, 95, 99).

A extrusion process and apparatus for the deposition of precise, usually small amounts of extrudate (4) for adhesion to a substrate (1) comprising an extruder (2) positioned close to the substrate (1) and a jet of hot gas (6) directed onto the extrudate (1) between the extruder (2) and the substrate (1) in order to retain the adhesive properties between the extrudate (4) and the substrate (1).

Systems and methods that enable printing of conformal materials and other waterproof coating materials at high resolution. An initial printing of a material on edges of a component is performed at high resolution in a first printing step, and a subsequent printing of the material on remaining surfaces of the component is applied in a second printing step, with or without curing of the material printed on the edges between the two printing steps. The printing of the material may be performed by a laser-assisted deposition or using another dispensing system to achieve a high resolution printing of the material and a high printing speed.