An apparatus for applying viscous material to workpieces has at least two material outlets. A needle valve is assigned to each material outlet, the valve needle of which being able to close the respective material outlet on a valve seat. Each valve needle is assigned a cylinder, in the piston chamber of which a piston is movable by pressure applied by a fluid, and which cylinder has a piston rod for impingement on the respective valve needle, the piston rod being connected to the piston, being guided out of the piston chamber on an end face facing the valve seats and extending longitudinally. The cylinders are arranged one behind the other longitudinally and the piston rod of at least one of the cylinders is guided in a sealed manner through the piston chamber of at least one further cylinder arranged closer on the valve seats.

A system for depositing foodstuff material in the fluid state on a foodstuff product, the system including: a product conveying line; at least one foodstuff material dispensing unit including includes a plurality of rows of nozzles; and a dispensing control unit, in which the dispensing unit includes a valve device associated to each individual nozzle to control foodstuff material flow through the nozzle, the valve device including: an open/close member, a solenoid; and a magnetic element operatively connected to the open/close member and mobile between a first position in which it closes the respective nozzle, preventing dispensing of the foodstuff material therethrough, and a second position in which a passage is opened through the nozzle for dispensing the foodstuff material.

A process for producing foodstuff products provided with a respective decoration having a given configuration, the process including the steps of: making a plurality of foodstuff products each having a surface cavity and a profile in plan view that is predetermined to reproduce the given configuration of the respective decoration; advancing the foodstuff products on a conveying line in a direction of advance; via a camera, detecting, for each foodstuff product, the respective cavity; determining one or more data indicating a volume of the cavity of the foodstuff product; providing a fluid foodstuff material dispensing unit, including a plurality of rows of nozzles transverse to the direction of advance; dispensing an amount of fluid foodstuff material in the cavity of each foodstuff product substantially equal to the volume of the cavity.

A power storage device and an applicator is obtained that achieve an increase in capacity and an improvement in productivity, and that enable the thickness of a mixture layer to be inhibited from varying. A positive electrode mixture slurry is discharged into discharge regions of a belt-like positive electrode current collector that extend in a length direction of the positive electrode current collector from discharge nozzles corresponding to the respective discharge regions to form a positive electrode mixture layer on the positive electrode current collector. The discharge regions are arranged such that a part of each of the discharge regions overlaps a part of another of the discharge regions adjacent thereto when viewed in the length direction to form overlapping portions. The positive electrode mixture slurry is intermittently discharged to form an exposed portion on at least one of the discharge regions.

An application mechanism according to one embodiment of the present invention serves as an application mechanism that applies an application material onto a substrate using an application needle. The application mechanism according to one embodiment of the present invention includes: a holder base; a slide mechanism attached to an inside of the holder base; an application needle fixing member, to which the application needle is attached, the application needle fixing member being supported by the slide mechanism so as to be slidable in an extending direction of the application needle; and a position holding mechanism that holds a relative position of the application needle fixing member with respect to the slide mechanism.

An application apparatus includes: an application needle that applies, to a target, an application material having its viscosity changing under shear; a drive unit that moves the application needle up and down; and a controller that controls the drive unit to move the application needle such that shear is applied to the application material at a shear speed depending on a type of the application material and depending on a target application amount or a target application diameter.

Systems and methods for closed loop fluid velocity control for jetting are disclosed. A method includes dispensing a first volume of viscous fluid from a nozzle of a dispensing device according to a first value of an operating parameter that affects the exit velocity of the first volume. A characteristic of the first volume is measured using a sensor. The characteristic of the first volume is then compared to a range of values to determine whether the characteristic of the first volume is outside of the range. The value of the operating parameter is adjusted to a second value in response to determining that the characteristic of the first volume is outside the range. A second volume of viscous fluid is dispensed according to the second value of the operating parameter. The exit velocity of the second volume is different than the first volume.

A device configured to jet one or more droplets of a viscous medium may include a housing having an inner surface at least partially defining a jetting chamber configured to hold the viscous medium, and a flexible jetting nozzle. The flexible jetting nozzle may include a flexible conduit extending between an inlet orifice in an inner surface to an outlet orifice in an outer surface. The device may cause an increase of internal pressure of viscous medium in the jetting chamber to force one or more droplets of viscous medium through the flexible conduit and through the outlet orifice. The flexible jetting nozzle may include a flexible material. The flexible jetting nozzle may deform, to cause a cross-sectional area of the flexible conduit to dilate, in response to the increase of the internal pressure of the viscous medium in the jetting chamber.

A method includes receiving a model of the material dispenser and, at a first characterization period of a material bead dispensing operation, communicating, to the material dispenser, a first characterization flow rate input. The method also includes, at a second characterization period of the material bead dispensing operation, communicating, to the material dispenser, a second characterization flow rate input. The method also includes generating, using at least one sensor, three-dimensional data associated with a material bead corresponding to the material bead dispensing operation. The method also includes characterizing at least one parameter of the model of the material dispenser using at least the first characterization flow rate input, the second characterization flow rate input, and the three-dimensional data associated with the material bead.

A glue dispensing device includes a glue container, a first driver, an elastic member, a connecting plate, and a first limiting plate. The glue container includes a containing main body and a glue dispensing head. The glue dispensing head includes a first receiving groove and a dispensing opening. The containing main body includes a second receiving groove and a third receiving groove. The first driver is arranged in the glue container, and includes a piston, a driving portion, and a piston rod. The elastic member is arranged in the second receiving groove. The connecting plate is fixed in the first receiving groove and located at a side of the piston. A first through hole penetrates the connecting plate. The first limiting plate is movably received in the third receiving groove and fixedly sleeved on the piston rod. The elastic member abuts between the connecting plate and the first limiting plate.