A dispensing unit for an adhesive or other viscous liquid includes one or more dispensing nozzles for delivery of the adhesive to a desired surface. The dispensing nozzles each include one or more dispensing ports that are in fluid communication with a nozzle body recess defined through a nozzle body of the dispensing nozzle. Adhesive that is supplied to the nozzle body recess may be thrown laterally from the dispensing nozzle via the dispensing ports. Each of the dispensing ports may be positioned between a pair of projections. The projections protect the dispensing port from breaking due to contact with the surface on which the adhesive is applied or contact with another exterior object.

A jetting dispensing module includes a module body with a fluid bore. A nozzle element is coupled to the module body. The nozzle element includes a fluid reservoir communicating with the fluid bore of the module body and a dispensing passage. A guide element includes a main guide bore and an internal fluid space in fluid communication with the fluid bore. A plunger is mounted for reciprocating movement within the module body. The plunger extends through the main guide bore and into the internal fluid space, and includes a distal end moveable between a fully retracted position spaced from the fluid reservoir and a fully extended position within the fluid reservoir but out of contact with the nozzle element.

A liquid injection device includes a nozzle, a moving element and a control valve. The nozzle has a channel, a bypass passage and a suck back passage. The channel penetrates through the nozzle for injecting a working fluid. The channel has a liquid outlet. The bypass passage has a first opening, a switch-on position and a switch-off position. The suck back passage has a second opening between the first opening and the liquid outlet. The first opening and the second opening communicate with the channel. The moving element is disposed in the bypass passage. The control valve is disposed on the nozzle and controls the moving element to switch between the switch-on position and the switch-off position to open or close the channel. A suck back pump sucks the working fluid remaining between the first opening and the liquid outlet when the moving element is located at the switch-off position.

A method (500) for removing glutinous substance (298) from applicator (100) comprises removing plunger (342) from applicator (100) before glutinous substance (298) has solidified; allowing glutinous substance (298) to solidify inside applicator (100); detaching side cover (110) from base portion (111) of first body portion (102) to expose first sealant plug (302); severing first sealant plug (302) from second sealant plug (304); severing first sealant plug (302) from third sealant plug (300); detaching tip portion (106) of applicator (100) from second body portion (104) to expose a portion of second sealant plug (304); extracting second sealant plug (304) from second body portion (104) by pulling portion of second sealant plug (304) in direction (320) along second body portion (104); separating first sealant plug (302) from base portion (111) of first body portion (102); and extracting third sealant plug (300) from end-effector interface (112) of first body portion (102).

A method (500) for removing glutinous substance (298) from applicator (100) comprises removing plunger (342) from applicator (100) before glutinous substance (298) has solidified; allowing glutinous substance (298) to solidify inside applicator (100); detaching side cover (110) from base portion (111) of first body portion (102) to expose first sealant plug (302); severing first sealant plug (302) from second sealant plug (304); severing first sealant plug (302) from third sealant plug (300); detaching tip portion (106) of applicator (100) from second body portion (104) to expose a portion of second sealant plug (304); extracting second sealant plug (304) from second body portion (104) by pulling portion of second sealant plug (304) in direction (320) along second body portion (104); separating first sealant plug (302) from base portion (111) of first body portion (102); and extracting third sealant plug (300) from end-effector interface (112) of first body portion (102).

One general aspect includes a liquid dispenser with a mount having a mount aperture. A liquid flow path assembly is removably secured to the mount and has an inlet configured to receive liquid, an outlet configured to dispense liquid and a passageway fluidly coupling the inlet to the outlet. A third aperture apart from the inlet and the outlet is fluidly coupled to the passageway and forming a valve guide. The liquid flow path assembly is disposed on the mount to align the third aperture with the mount aperture. An elongated valve has a valve stem guided by the valve guide and extends through the third aperture and the mount aperture. A latch assembly secures the liquid flow path assembly to the mount.

A dispensing unit (100) for controlling flow of a substance (101) comprises a nozzle (102) and a plug (110). The nozzle comprises an outlet (122) and a channel (104) that comprises a longitudinal symmetry axis (130), a sealing surface (106), and an alcove surface (108), contiguous with the sealing surface (106) and outwardly recessed relative to the sealing surface (106); and a plug (110). The plug (110) comprises a wall (112) that comprises an outer surface (114) and that also comprises a first aperture (116), fully penetrating the wall (112) through the outer surface (114) of the wall (112) of the plug (110). The outer surface (114) of the wall (112), comprising the first aperture (116), is complementary with the sealing surface (106) of the channel (104). The plug (110) is movable in the channel (104).

A dispensing unit (100) for controlling flow of a substance (101) is disclosed. The dispensing unit (100) comprises a nozzle (102) and a plug (110). The nozzle (102) comprises a channel (104) that comprises a first portion (102) and a second portion (192), communicatively coupled with the first portion (190). The first portion (102) of the channel (104) has a symmetry axis (130). The second portion (192) of the channel (104) comprises an outlet (122) that is offset relative to the symmetry axis (130) of the first portion (190) of the channel (104). The dispensing unit (100) further comprises a plug (110) that comprises a wall (112) and a first aperture (116), which penetrates the wall (112) through an outer surface (114) of the wall (112).

A heated hose for passage of a free-flowing medium, for example for the passage of a hot-melt adhesive. The heated hose has an angled attachment piece, wherein the attachment piece has a first limb and, angled with respect to the first limb, a second limb, wherein the attachment piece has a through-channel which runs through the limbs to allow the free-flowing medium to pass through the attachment piece, and wherein the attachment piece has a coupling connector for producing a fluidic connection between the heated hose and an external apparatus, by coupling the external apparatus along a coupling axis of the coupling connector.

An applicator for delivering a glutinous substance comprises a first body portion, a second body portion, a tip portion, an inner sleeve, and an actuator interface. The first body portion comprises a base portion, an end-effector interface extending from the base portion, and a side cover removably coupled to the base portion. A first cavity is formed in the first body portion when the side cover is removably coupled to the base portion. The second body portion is non-parallel to the first body portion, and a second cavity extends through the second body portion and intersects the first cavity. The tip portion is to be removably coupled to the second body portion and comprises a nozzle portion and a third cavity that communicatively couples with the second cavity. The inner sleeve is to be coaxially received inside the third cavity, and the actuator interface extends from the second body portion.