An intermittent valve device includes: an intermittent valve capable of switching between a first state in which a coating material is supplied to a die that applies the coating material onto a material to be coated and a second state in which the supply of the coating material is stopped; and a drive unit that switches the first state and the second state of the intermittent valve. The drive unit includes a cam that rotates in one direction with a circumferential surface of the cam connected to the intermittent valve. The cam includes, on the circumferential surface, a first shape part that places the intermittent valve in the first state, and a second shape part that places the intermittent valve in the second state.

Methods and apparatuses for applying coatings (9) on a moving web (3) are provided. A slot die (20) and a back-up roll (11) engage with each other. The back-up roll has a deformable inner layer (12) with a surface thereof covered by a deformable outer layer (14). The slot die and the flexible web at a contacting area are impressed into the back-up roll with an engagement depth D, which enables formation of a coating having a substantially uniform thickness.

An adhesive dispenser having a pump and a slotted nozzle assembly is disclosed. The pump includes a pump body assembly having a nozzle body defining a recess that extends into the body, and a fluid channel with an inlet to receive adhesive and an outlet open to the recess. The pump includes a valve member movably disposed in the fluid channel and configured to selectively block the adhesive from flowing to the outlet. The slotted nozzle assembly includes a baffle plate having a slot that extends through the plate and a cover plate attached to the plate. The slotted nozzle assembly is received in the recess of the nozzle body, such that an input channel extending from the outlet of the body to the slot is defined between the baffle plate and the nozzle body, and an output channel extending from the slot to a dispensing outlet is defined between the baffle plate and the cover plate.

An applicator system for applying a material to a substrate is disclosed, the applicator system having a nozzle assembly that includes a nozzle having a nozzle head. The nozzle assembly also includes a baffle plate including a cutout that extends through the baffle plate, where the baffle plate is received by the nozzle head such that the nozzle head and the baffle plate define a cavity. The nozzle assembly further includes a cover plate attached to the nozzle head such that the cover plate secures the baffle plate within the nozzle head, where an outlet passage is defined between the baffle plate and the cover plate, the outlet passage being fluidly connected to the cavity through the cutout of the baffle plate.

A coating extrusion head may include an extrusion head body and at least one pressure regulating assembly. The extrusion head body may be provided with a coating slot and an accommodating cavity which may be in communication with each other. The at least one pressure regulating assembly may be arranged in the accommodating cavity, and the pressure regulating assembly may be configured to be expandable in a first direction perpendicular to the coating slot.

Methods and apparatuses for applying coatings (9) on a moving web (3) are provided. A slot die (20) and a back-up roll (11) engage with each other. The back-up roll has a deformable inner layer (12) with a surface thereof covered by a deformable outer layer (14). The slot die and the flexible web at a contacting area are impressed into the back-up roll with an engagement depth D, which enables formation of a coating having a substantially uniform thickness.

Provided is a slot die with variable manifolds and a controlling method thereof. The slot die with the variable manifolds, which applies ink on a substrate to perform a coating process, includes: a first body having a length corresponding to a width of the substrate and having a cavity configured to accommodate the ink supplied from the outside; a second body having a length corresponding to the first body and having an discharge port, from which the ink is discharged, formed in one side thereof when the second body is coupled to the first body; a plurality of variable manifolds disposed in the cavity in a width direction of the substrate and installed so as to reciprocate in the cavity; and a plurality of manifold drivers disposed at one side of the first body and connected to the plurality of variable manifolds to allow the plurality of variable manifolds to reciprocate, respectively, wherein each of the plurality of variable manifolds is independently driven according to a state of the ink coated on the substrate and adjusts a partial discharge amount of the ink discharged from the discharge port by changing a partial volume of the cavity at an arrangement position thereof.

An intermittent valve includes: a valve main unit having: an inflow chamber, a supply chamber and a return chamber; a piston; a supply valve allowing a coating material to flow from the inflow chamber to the supply chamber when the piston is in a first position and blocking the flow when the piston is in a second position; and a return valve blocking the coating material from flowing from the inflow chamber to the return chamber when the piston is in the first position and allows the flow when the piston is in the second position. The valve diameter of the supply valve is 1.53 times or more the valve diameter of the return valve.

A slot die coating apparatus according to one embodiment of the present disclosure includes: a slot die containing a first die block and a second die block, and a sensor unit for measuring the flow rate of an electrode active material slurry which is discharged through a discharge port formed by the coupling of the first die block and the second die block, wherein the sensor unit is formed inside the first die block, and the sensor unit is connected to the discharge port via an energy dissipation part and an energy absorption part.

A method of producing a battery electrode includes dispensing a pasty coating material by a coating installation onto a surface of a moving substrate, wherein the coating installation includes a switchable slotted valve, a feed device that feeds the pasty coating material to the slotted valve, and a slotted nozzle that adjoins the slotted valve and dispenses the pasty coating material onto the surface to be coated therewith; the switchable slotted valve includes a valve bore incorporated into a valve basic body, oriented in a valve direction of extent and having an inner circumferential surface, a feed duct arranged in a region of the inner circumferential surface of the valve bore and opens into the valve bore, a nozzle duct arranged in the region of the inner circumferential surface, a valve sleeve arranged in the valve bore, and a control rod arranged in the valve bore.