An apparatus and a method performing work free from variations among a plurality of work heads having individual differences. A working apparatus includes a number n (a natural number 2 or greater) of work heads, a stage retaining a work object, drive devices moving the stage and the work heads relative to each other in three directions, a work amount measurement device measuring a work amount of each work head, and a control device, wherein the first-direction drive device enables the number n of work heads to be independently moved in a first direction, and the second-direction drive device includes a second-direction main drive device moving the number n of work heads simultaneously in a second direction, and a second-direction auxiliary drive device moving n?1 work heads among the number n of work heads independently in the second direction. A working method is carried out using the working apparatus.

The disclosure relates to a piezo actuator device, preferably for controlling a dispensing of an application agent onto a component, including: at least one movable valve body for opening and closing at least one valve seat, at least one preferably pivotable actuating arm for actuating the at least one valve body, and a piezo actuator configured to move the at least one valve body to close and/or open the at least one valve seat.

The invention relates to a metering module (1, 1) for metering a metering medium, having a plurality of metering valves (4a, 4b), having a first valve actuator group (2), which has at least two valve actuators (3) arranged alongside one another in a row direction (QR, QR), which valve actuators (3) each comprise at least one metering head part (4) with an expulsion element (4a), and a second valve actuator group (5) with at least one valve actuator (3), preferably with a plurality of valve actuators (3) that are arranged alongside one another in a row direction (QR, QR), which at least one valve actuator (3) also comprises a metering head part (4) with an expulsion element (4a). Here, the metering head parts (4) of the first valve actuator group (2) and of the second valve actuator group (5) face one another. Furthermore, the metering module (1, 1) comprises a metering nozzle arrangement (4) having a plurality of metering nozzles (4b), wherein each metering head part (4) is assigned a metering nozzle (4b) of the metering nozzle arrangement (4) such that the metering nozzle (4b), with the expulsion element (4a) of the metering head part (4), forms in each case a metering valve (4a, 4b).

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 device (10) for applying a fluid to a moving substrate (36) includes a nozzle head (15a, 15b, 15c, 15d) with an inlet opening (26, 26c) and an outlet opening (29a, 29b, 29c, 29d). The device further includes a supply station (11) with a fastening surface (17) with a mouth region (20a) of a fluid duct. The nozzle head is arranged so as to be pivotable relative to the fastening surface about a pivot axis (38a). The inlet opening (26, 26c) and the mouth region (20a) of the fluid duct are arranged in alignment along the pivot axis (38a).

A retaining system for a solenoid assembly of a liquid adhesive dispensing system includes a quick-release mechanism configured to secure the solenoid assembly in place. The quick-release mechanism engages an air tube of the solenoid and thereby secures the entire solenoid assembly to a manifold. The quick-release mechanism can release the solenoid, facilitating easy removal of the entire solenoid assembly, by a simple turning, pushing, or pulling action on the quick-release mechanism. The released solenoid can then be removed and replaced, thereby minimizing downtime caused due to the replacement of a faulty solenoid.

An applicator for dispensing adhesive is disclosed. The applicator includes a manifold, at least one dispensing module coupled to the manifold, a supply channel configured to contain at least a portion of the adhesive, a recirculation channel configured to contain at least a portion of the adhesive, and a recirculation pump assembly connected to the manifold. The recirculation pump assembly includes an inlet in fluid communication with the recirculation channel, an outlet in fluid communication with the supply channel, a gear assembly, and a drive motor coupled to the gear assembly and operable to pump the adhesive, where the drive motor is configured to operate at an adjustable number of revolutions per minute (RPM). The recirculation pump assembly can be configured to move at least a portion of the adhesive from the recirculation channel to the supply channel, such that a first pressure of the adhesive in the recirculation channel is substantially equal to a second pressure of the adhesive in the supply channel.

Disclosed is an apparatus (10) for the application of a liquid to viscous medium (42) onto an application surface (53), comprising a port (14) for providing a connection between the apparatus (10) and a supply of said liquid to viscous medium (42) upstream of the apparatus (10), at least two volumetric delivery pumps (23) for metering volumes of said medium, said volumetric delivery pumps (23) being located downstream of said port (14), each volumetric delivery pump (23) being in fluid connection with an application valve (25) of the apparatus (10), located downstream of the volumetric delivery pump (23) for passing a metered volume of the medium (42) from the delivery pump (23) to said application valve (25). It is characteristic that the apparatus (10) comprises a flow meter (13) in fluid connection with said volumetric delivery pumps (23), which flow meter (13) is located upstream of said volumetric delivery pumps (23).

A system for applying a two-part adhesive to a substrate includes two separate trays for holding a 15 gallon capacity drum containing a two-part adhesive compound, where the trays are tiltable independent of each other, a prime mover for providing an output torque, a first pump connected to the prime mover for receiving the output torque, the first pump having an inlet and an outlet, a second pump connected to the prime mover for receiving the output torque, the second pump having an inlet and an outlet, a first compound in communication with the inlet of the first pump, a second compound in communication with the inlet of the second pump, a first accumulator in communication with the outlet of the first pump, a second accumulator in communication with the outlet of the second pump, a first manifold in communication with the outlet of the first pump, and a second manifold in communication with the outlet of the second pump. A plurality of applicators is included.

A robotic placement machine including a base operably connected to the Y axis actuator and the X axis actuator, a first Z axis actuator coupled to the first end of the base, the first Z axis actuator capable of moving up and down a first Z axis, a second Z axis actuator coupled to the second end of the base, the second Z axis actuator capable of moving up and down a second Z axis, and a pick and place plate operably connected to the first Z axis actuator and the second Z axis actuator, wherein the first Z axis actuator and the second Z axis actuator are each capable of moving independently of each other to tilt the pick and place plate is provided. Furthermore, a system comprising a first machine, second machine, and third machine to eliminate air bubbles when bonding two substrates is also provided. A method of optical bonding is further provided.