A liquid knife cleaning apparatus and a liquid knife are provided. The liquid knife cleaning apparatus includes: a frame configured to be arranged on the liquid knife and be capable of reciprocating in an extending direction of the knife edge; a cleaning blade configured to extend into the knife edge of the liquid knife and be capable of reciprocating inside the knife edge under the driving of the frame to clean the knife edge, the cleaning blade being arranged on the frame; and a movable mechanism configured to control the frame to reciprocate on the liquid knife in the extending direction of the knife edge, the frame being connected to the movable mechanism.

A pressure detector is installed in close proximity to the nozzle of a 3D printer and detects a plugged nozzle by the sudden increase in the pressure of the extruded material. The printing process is paused until the nozzle is cleared manually or automatically. For manual cleaning a notification can be automatically sent to the user of the printer. The pressure sensor can be part of the nozzle housing and be designed to detect external forces as well, in order to serve as a bed levelling sensor.

An oxy-acetylene cutting torch tip cleaner includes an elongated body portion with at least one actuator and at least one associated housing bore for storing a cleaning pin. Each cleaning pin is coupled to an actuator movable from a first position with the cleaning pin contained in the housing bore to a second position with the cleaning pin extending from the housing bore, for abrading and cleaning the cutting torch tip. Each actuator, coupled to its cleaning pin with a slider, is biased to the first position and a lock engages each actuator in the second position such that when the lock is disengaged from the actuator at the second position with the cleaning tip extended from the body, the actuator automatically returns to the first position thereby retracting the cleaning pin back into the housing bore.

A manifold that allows for increased flow performance, at a reduced pressure, and a flow path that is easily maintained, and fluid dispensing systems that allow for the precise, controlled spacing of beads of multiple component adhesives, and other liquids, and allow for multiple beads to be dispensed onto a substrate simultaneously are disclosed. A control portion for a manifold that solves the disadvantages relating to sealing an open channel and a earner that provides a mechanism for applying an adhesive and/or a two-part adhesive caster are disclosed.

A nozzle auto-cleaning device and a nozzle auto-cleaning method are disclosed. The nozzle auto-cleaning device includes a base and a cleaning piece feeding unit disposed on the base, the base has a bearing surface on which the cleaning piece feeding unit is disposed, the cleaning piece feeding unit is configured to transport a cleaning piece installed inside the nozzle auto-cleaning device along a first direction intersected with the bearing surface so that a first portion of the cleaning piece is protruded in a direction away from the bearing surface and inserted into a nozzle, and the base is configured to move along at least one direction of the first direction, as well as a second direction and a third direction intersected in a plane of the bearing surface, so as to drive the first portion of the cleaning piece to move inside the nozzle.

An apparatus for unclogging a surgical-suction device (21) comprising a base (22) that defines at least one hole (26). A stylet (28) extends perpendicularly from the center of the base (22) along an axis (A) for receiving the surgical-suction device (21). The stylet (28) defines an exterior and an internal chamber (32) that communicates with the hole (26) in the base (22). The stylet (28) defines at least one aperture (40) in fluid communication between the chamber (32) and the exterior of the stylet (28) for communicating with the surgical-suction device (21). A valve (60) having an open position (FIG. 1) for allowing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28) and a closed position (FIG. 2) for preventing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28).

A sealant applying device and a working method thereof, and a sealant applying apparatus are disclosed. The sealant applying device includes a nozzle; the nozzle includes an air inlet portion and a sealant outflow portion, a switch plate is arranged below the sealant outflow portion, the switch plate includes a plate body configured to horizontally move between a first state and a second state, one end of the plate body is provided with a through hole, and a discharge portion is provided at a position corresponding to the through hole and on a side of the plate body facing away from the sealant outflow portion.

The invention generally relates to a surface treatment distribution apparatus and spray assembly apparatus method capable of applying a variety of surface treatments, for example mastic surface treatments, to a variety of highways, roadways and other asphalt surfaces of variable shapes and sizes. The invention generally includes a tank, pumps, operator station, control inputs, filter assemblies, spray bar and self cleaning spray tip assemblies. Each spray tip assembly includes a self cleaning functionality whereby the operator may remove any debris or clogging material from one or more spray tips with a pneumatically actuated plunger located in the spray tip assembly that acts to force the debris or blockage out of the spray tip. The plunger retracts after actuation and the spray tip assembly is then ready to resume spray operations as desired by the operator.

A nozzle cleaner device attached to a tip end of a nozzle used in arc welding is provided. The nozzle cleaner device is for removing spatter attached to a tip end of a nozzle of an electrode for arc welding, including a main body provided within an operation area of a robot arm which operates the electrode, the main body of the cleaner device includes a tub-shaped box body and a polishing part erected at a center part of the bottom surface of the box body; the polishing part is made of a material softer than a metal which constitutes the nozzle, and formed in a cylinder shape that can be inserted into the nozzle; and the nozzle onto which spatter is attached is carried to the main body of the cleaner device to remove the spatter by means of the polishing part inserted into the nozzle.

A nozzle auto-cleaning device and a nozzle auto-cleaning method are disclosed. The nozzle auto-cleaning device includes a base and a cleaning piece feeding unit disposed on the base, the base has a bearing surface on which the cleaning piece feeding unit is disposed, the cleaning piece feeding unit is configured to transport a cleaning piece installed inside the nozzle auto-cleaning device along a first direction intersected with the bearing surface so that a first portion of the cleaning piece is protruded in a direction away from the bearing surface and inserted into a nozzle, and the base is configured to move along at least one direction of the first direction, as well as a second direction and a third direction intersected in a plane of the bearing surface, so as to drive the first portion of the cleaning piece to move inside the nozzle.