Abstract:
An adhesive dispensing system and method of dispensing liquid material are disclosed. The adhesive dispensing system includes an adhesive dispensing module receiving hot melt adhesive through the inlet at a low pressure and rapidly developing high pressure at an outlet to thereby jet the hot melt adhesive therefrom. The system also includes a pressure container containing a supply of hot melt adhesive and configured to melt or maintain a heated temperature of the hot melt adhesive. A low pressure liquid passageway communicates between the adhesive dispensing module and the pressure container. The system also includes a pressurized air source in fluid communication with the adhesive dispensing module to operate the adhesive dispensing module by moving a piston to generate high pressure at the outlet of a nozzle for jetting hot melt adhesive as a discrete volume toward a substrate.
Abstract:
A transfer pump for moving pellets of adhesive includes a pump housing with an adhesive inlet coupled to a supply hopper, an adhesive outlet coupled to an outlet hose, and an adhesive passage extending between the adhesive inlet and the adhesive outlet. A first air nozzle communicates with the adhesive passage adjacent the adhesive inlet and expels a first air jet that pushes pellets of adhesive through the adhesive passage. A second air nozzle communicates with the adhesive passage between the adhesive inlet and the adhesive outlet and expels a plurality of second air jets that draw pellets of adhesive through the adhesive passage by a vacuum force. The first and second air nozzles prevent clogging of pellets in the adhesive passage and enable movement of larger pellets than either air nozzle individually.
Abstract:
A viscous material warming device comprising a housing, where the housing is surrounded with an insulated wall; a lid atop the housing; an upper plate mounted within the housing, where the upper plate includes a plurality of upper receiving holes each to accept a material tube, and where the upper plate includes spacer holes; a lower plate mounted within the housing below the upper plate, where the lower plate includes a plurality of lower receiving holes each to accept a tip of the material tube, and where the lower plate includes spacer holes; at least three spacers positioned between the upper plate and the lower plate, where the spacers are positioned within the spacer holes of each the upper plate and the lower plate; and a heater positioned within the lower plate, where the heater includes a thermometer to maintain the housing at a constant temperature.
Abstract:
In one aspect, an adhesive dispensing system 30 includes a dispensing module 32 having an inlet and an outlet, a supply 35 of hot melt adhesive maintained at low pressure, and a low pressure liquid passageway 44 communicating between the supply 35 and the inlet of the dispensing module 32. Liquid material is received through the inlet at a low pressure, and the dispensing module 32 rapidly develops high pressure at the outlet 78 to jet the liquid material from the outlet 78. In another aspect, an apparatus for jetting liquid material includes a dispenser body 38 having a liquid chamber 40. A piston 54 is movably disposed within the liquid chamber 40, from a position wherein a piston tip 58 is spaced from a complimentary shaped recess 76, to a position wherein the piston tip 58 effectively seals off the recess 76, then to a position wherein the piston tip 58 is received within the recess 76 to displace a discrete volume of liquid material from the recess 76.
Abstract:
Web lifter and/or stabilizer and method of lifting and/or stabilizing a travelling web and for coating a web. The device creates a web hold down force via a negative pressure slot at its exit side, which draws the web down against the surface on the entry side. The device can be actuated to move the web relative to a slot die coater off the die lips and stop the application of slurry to the web, thereby creating uncoated regions on the web surface. The device can then be actuated to move the web back into contact with the coater to start the application of slurry to the web, thereby creating coated regions on the web surface. Web lifting can be accomplished by rotating the device in first and second directions to lift the web off of the slot die coater and return the web back into contact with the coater.
Abstract:
A method for dispensing epoxy comprising the step of degassing an epoxy. The method further comprises the step of associating the epoxy with an epoxy injector comprising a dispensing end. The method further comprises the step of a computer receiving data representative of a selected container to receive the epoxy. The method further comprises the step of a computer determining a dispensing rate and a dispensing amount, based on the received data. The method further comprises the step of a computer causing the epoxy injector to dispense the determined dispensing amount of epoxy, via the dispensing end, at the determined dispensing rate. The method further comprises the step of a computer causing a dispensing arm, supporting the dispensing end, to retract the dispensing end while the epoxy injector is dispensing the epoxy. The method further comprises the step of curing the dispensed epoxy.
Abstract:
A hot melt adhesive system includes a supply container for storing adhesive particulate, a transfer pump operatively connected to the supply container, a transfer hose operatively coupled to the transfer pump, and a blocking member. The blocking member is movable between a first position in which stored adhesive particulate and air are permitted to be withdrawn from the supply container into the transfer hose, and a second position in which the stored adhesive particulate is blocked from passing through the transfer hose while air is permitted to pass therethrough to flush the transfer hose of residual adhesive particulate.
Abstract:
Disclosed herein is a method of coating and curing, including conveying a substantially flat substrate to be coated with a conveyor system through a combination roll coating and curing facility, wherein the combination roll coating and curing facility comprises at least one roll coating facility and at least one curing facility, roll coating the substantially flat substrate with a continuous sol gel coating material with the at least one roll coating facility, and curing the sol gel coating material on the substantially flat substrate with an air knife of the at least one curing facility, wherein the air knife is adapted to direct a heated stream of air to cure the continuous sol gel coating material while an interior of the substantially flat substrate remains at a temperature substantially lower than a temperature of air from the air knife.
Abstract:
An application apparatus includes a nozzle device (20) injecting a damping material from a nozzle hole (20a) to a vehicle body, an articulated robot (21) moving the nozzle device (20) relative to the vehicle body, a supply section including a supply pump (22), and a supply passage (27), and continuously driving the supply pump (22) to continuously supply the damping material from the supply pump (22) to the supply passage (27) in a substantially uniform amount, a return passage (33) branched from the supply passage (27) and returning the damping material to the supply pump (22), and a gun (32) and a return valve (34) switching a supply destination of the damping material between the nozzle hole (20a) and the return passage (33) based on information on applying the damping material to the vehicle body.
Abstract:
An adhesive melter includes a melter support frame with a spring-loaded support and a manifold for receiving molten adhesive. The melter also includes a pump pack assembly having a rigid frame carrying a pump for directing flow of molten adhesive through the manifold, a motor, and a drive coupling operatively connecting the pump and motor. The pump pack assembly is collectively mounted as a unit on the melter support frame by positioning the rigid frame on the spring-loaded support, moving the pump into abutment with the manifold, and fastening the pump into fluid-tight engagement with the manifold, the support adjusting in position during fastening to assist with carrying the pump pack assembly as a cantilever load.