摘要:
An apparatus and method use closed loop control processes to automatically adjust a command signal used to change an operating state of a fluid dispensing gun. Proportional, integral and/or derivative control processes are used to determine an operating parameter comprising on time compensation, off time compensation and/or a fluid pressure compensation. An adjustment is made to the operating parameter if a number of consecutive measurements of an adhesive bead characteristic are outside of a predetermined tolerance range. A sensor for producing a feedback signal is used to communicate a measurable difference between an actual and a desired bead characteristic. The feedback signal applied in real time is used when determining the operating parameter, reducing substrate waste and increasing efficiency.
摘要:
A fluid dispensing system includes a dispensing pump that receives a flow of material and a dispense tip coupled to the dispensing pump. The dispense tip delivers the material to a substrate. The fluid dispensing system further includes a vacuum unit that draws a vacuum on the material in the fluid dispensing system.
摘要:
A method of dispensing a flowable conductive paste onto a greensheet from a dispensing apparatus comprising an orifice member having first and second surfaces and a bore therethrough between the surfaces, a pressurized chamber adjacent the orifice member first surface containing the paste, and a punch having a face movable through the orifice member bore. The method comprises positioning the punch outside the orifice member bore such that the punch face is spaced from the orifice member first surface, flowing a desired amount of paste onto the punch face, moving the paste on the punch face through the orifice member bore until the punch face extends beyond the orifice member second surface, and contacting the workpiece with the paste while still on the punch face to deposit the paste on the greensheet. The method then provides for retracting the punch until the punch face is substantially coplanar with the orifice member second surface, and then cleaning the punch face and coplanar orifice member second surface to remove any residual paste thereon.
摘要:
A system measures a location of a drop delivered by, for example, an ink-jet type applicator. An image of the drop is captured from two directions, resulting in two drop images. Only one image capturing apparatus is needed to capture the drop images. The location in three-dimensional space is determined by using the two images but only one image capturing device. The position or location information can then be used to calibrate a coating apparatus.
摘要:
A method of controlling edge definition of viscous material applied to an application area on a substrate comprises dispensing a row of droplets of the viscous material onto the application area with a dispensing apparatus. While moving relative to the substrate along a path proximate the row of droplets, the dispensing apparatus dispenses a fan spray pattern of the viscous material. At least some of the viscous material dispensed in the fan spray pattern impinges and mixes with the row of droplets to define an edge of the fan spray pattern.
摘要:
A pin (125) is moved down in a nozzle (121), the end of paste (101) protruded from the discharge opening (122) of the nozzle (121) to a target object (102) is brought into contact with the target object (102), and the pin (125) is moved away from the discharge opening (122) to divide the paste in contact with the target object.
摘要:
An apparatus and method use closed loop control processes to automatically adjust a command signal used to change an operating state of a fluid dispensing gun. Proportional, integral and/or derivative control processes are used to determine an operating parameter comprising on time compensation, off time compensation and/or a fluid pressure compensation. An adjustment is made to the operating parameter if a number of consecutive measurements of an adhesive bead characteristic are outside of a predetermined tolerance range. A sensor for producing a feedback signal is used to communicate a measurable difference between an actual and a desired bead characteristic. The feedback signal applied in real time is used when determining the operating parameter, reducing substrate waste and increasing efficiency.
摘要:
This invention relates to a device for jetting droplets of a particle filled viscous medium. The device has a nozzle, an eject mechanism connected to the nozzle, a medium feeding mechanism connected to the eject mechanism, a particle filled viscous medium container connected to the medium feeding mechanism, and a filter arranged between an outlet of the particle filled viscous medium container and the medium feeding mechanism.
摘要:
A system measures a location of a drop delivered by, for example, an ink-jet type applicator. An image of the drop is captured from two directions, resulting in two drop images. Only one image capturing apparatus is needed to capture the drop images. The location in three-dimensional space is determined by using the two images but only one image capturing device. The position or location information can then be used to calibrate a coating apparatus.
摘要:
A glue/adhesive delivery pin fixture (100) includes a top board (10), a support board (30), a bottom/output board (40), and a plurality of pins (50). The top board defines a gate (i.e., conduit) (14) and a plurality of glue runners (16) extending from one end of the gate. The support board has a plurality of through holes (36) defined therein. Each through hole communicates with a corresponding glue runner. The bottom board has a plurality of receiving holes (48), respectively corresponding to the through holes. A given pin is received in a respective through hole and includes a holding portion (52) on one end thereof. One side of the holding portion resists the support board, and the other side resists the bottom board. Each pin communicates with a corresponding through hole in the support board.