JUKI CORPORATION Patent applications |
Patent application number | Title | Published |
20130297056 | PRODUCTION SYSTEM AND DATA GENERATION METHOD - A production system which is centralizedly managed by a server so that electronic components fed from feeders are mounted on a board by each mounting apparatus, is configured so that the feeders are placed in predetermined placement regions of a feeder bank provided in the mounting apparatus, the server detects the placement regions where the feeders are placed, and manages the feeders and the placement regions in association with each other, and the mounting apparatus acquires management information from the server and automatically generates layout data indicating correspondence between the feeders and the placement regions. | 11-07-2013 |
20130008019 | ELECTRONIC COMPONENT MOUNTING APPARATUS - An electronic component mounting apparatus includes a head unit, component supply device, camera unit, and controller controlling the head unit and component supply device. The component supply device has a holder holding electronic component accommodating tapes, each having storage cells arranged in a row, the storage cells storing electronic components, and a feeder forwarding the electronic component accommodating tapes and moving the storage cells to a suction area where the electronic component can be suctioned by the nozzle. The camera unit is fixed to a head support, and captures an image of the suction area. The controller analyzes the image of the suction area obtained by the camera unit. When the controller determines that a portion of the electronic component accommodating tape in the suction area is a spliced portion based on a result of the analysis, the controller determines that the electronic component accommodating tape is changed. | 01-10-2013 |
20120233852 | ELECTRONIC COMPONENT MOUNTING APPARATUS - An electronic component mounting apparatus in which an electronic component may be checked to provide highly accurate and efficient electronic component mounting. The apparatus includes a camera unit fixed on a head support and images an electronic component absorbed or to be absorbed onto a nozzle. The camera unit contains a camera module including a camera obtaining an image, a first lighting section disposed adjacently on a side of the camera closer to the nozzle and emitting light toward an imaging region of the camera, a second lighting section disposed adjacently on a side of the camera farther from the nozzle and emitting light toward the imaging region of the camera, and a baffle; and a bracket fixed on the head support and supporting the camera, the first lighting section, the second lighting section and the baffle. | 09-20-2012 |
20100180434 | ELECTRONIC COMPONENT MOUNTING APPARATUS - Before a user starts the operation of an electronic component mounting apparatus, user's input representing as to whether the user is an operator, a programmer or a manager/maintenance person is accepted and further user level information representing degree of skill of the user as to the safety measures is accepted. The power supply of a mechanical portion operating a head portion is interrupted in accordance with the state of the apparatus including at least the user level information and the open/close state of a safety cover for covering the movable range of the head portion. | 07-22-2010 |
20100077950 | SEWING MACHINE - A sewing machine is provided. The sewing machine includes a needle, a feed dog which feeds a workpiece in a feeding direction, a stitching motor which vertically moves the needle, a needle swinging motor which swings the needle in a direction orthogonal to the feeding direction, a memory in which basic coordinate data of basic buttonhole stitches having a basic stitching width is stored, an input device from which a stitching width is input, and a control device which creates a modified coordinate data based on the basic coordinate data and the stitching width input from the input device, and controls the stitching motor and the needle swinging motor based on the modified coordinate data to form buttonhole stitches having the stitching width input from the input device. | 04-01-2010 |
20100071603 | THREADING DEVICE OF SEWING MACHINE - A threading device of a sewing machine is provided. The threading device includes a threading hook which moves forward to penetrate through an eye of a needle to capture a thread and which moves backward to insert the thread into the eye, a threading shaft which holds the threading hook at a lower end thereof, a threading movement input mechanism from which an operation for causing the threading hook to carry out a threading movement is input, an up-and-down member which moves, in accordance with the operation to the threading movement input mechanism, in up and down directions to rotate the threading shaft, a thread holding mechanism which holds the thread to be inserted into the needle, and a thread releasing mechanism which releases the thread that is held by the thread holding mechanism. The thread releasing mechanism releases the thread when the threading hook is moving backward. | 03-25-2010 |
20090288292 | SURFACE MOUNTING APPARATUS - A surface mounting apparatus includes a mounting head which is movable in X and Y directions and which mounts an electronic component on a positioned board, and a board recognizing camera is fixed to a base and which moves integrally with the mounting head. A correction jig includes a correction mark which is imaged by the board recognizing camera, and an imaging result is used to correct temporal change in an interior portion of the camera including an optical system, and is fixed to the base. | 11-26-2009 |
20090252400 | METHOD FOR MOUNTING ELECTRONIC COMPONENT - In order to recognize grid-like reference marks on a jig plate positioned in a mounting area by means of a substrate recognizing camera respectively, to obtain a positional shift amount of a mounting head with respect to XY coordinates on an apparatus of each of the reference marks, and to correct a mounting position, thereby carrying out a mounting operation, a jig component positioned and mounted sequentially on each of the reference marks formed on the jig plate by means of a nozzle head is recognized by the substrate recognizing camera, a shift amount of XY coordinates acquired by the camera recognition of the jig component from XY coordinates on the apparatus of the corresponding reference mark is obtained as corrected data on the nozzle head with respect to the reference mark, and a correction is carried out based on the corrected data when an electronic component is to be mounted on a substrate by means of the nozzle head. | 10-08-2009 |
20090211505 | THREAD CUTTING DEVICE OF SEWING MACHINE - A thread cutting device of a sewing machine is provided. The thread cutting device cuts a thread extending between a horizontal shuttle and a throat plate of the sewing machine. The thread cutting device includes a fixed blade, a first thread catcher, a second thread catcher, a driving assembly which moves the first and second thread catchers such that the first thread catcher catches the thread before the second thread catcher catches the thread and pulls the thread toward the fixed blade to cut the thread, and a guide member disposed between the first thread catcher and the driving assembly. The guide member guides the first thread catcher from an advanced position to a thread catching position to catch the thread, and further guides the first thread catcher from the thread catching position to a standby position to turn the first thread catcher toward the fixed blade. | 08-27-2009 |
20090165687 | THREADING TENSIONING DEVICE OF SEWING MACHINE - A thread tensioning device of a sewing machine for forming multiple types of stitches using a plurality of threads is provided. The thread tensioning device includes thread tensioners disposed to correspond to the threads, an adjusting mechanism coupled to the thread tensioners to select a stitch type and to simultaneously adjust the tensional force applied from each of the thread tensioners to the corresponding thread such that the tensional force is selected from reference tensional forces corresponding to the selected stitch type, fine adjustment mechanisms disposed to correspond to the thread tensioners and to be manually operable to finely adjust the tensional force applied from the corresponding thread tensioner to the corresponding thread, and a reset mechanism coupled to the fine adjustment mechanisms to resets at different timings and interlockingly with the adjusting mechanism an amount of the tensional force finely adjusted by each of the fine adjustment mechanisms. | 07-02-2009 |
20090071385 | THREAD CUTTING DEVICE OF SEWING MACHINE - A thread cutting device of a sewing machine cuts a thread below a throat plate through which a needle is inserted. The thread cutting device includes a first thread catcher operable to catch the thread, a second thread catcher operable to catch the thread caught by the first thread catcher, a fixed blade operable to cut the thread caught by the second thread catcher, a driving portion which drives the first thread catcher and the second thread catcher such that the second thread catcher catches the thread caught by the first thread catcher and guides the thread toward the fixed blade, an attaching member to which the fixed blade is fixed and into which the second thread catcher is slidably inserted from above over the fixed blade, and a cover which covers the second thread catcher from above to restrict an upward movement of the second thread catcher. | 03-19-2009 |
20090064914 | THREADING DEVICE OF SEWING MACHINE - A threading device of a sewing machine is provided. The threading device includes a threading hook which moves forward to enter an eye of a needle to catch a needle thread, and moves rearward with the needle thread being caught to insert the needle thread through the eye, a threading shaft which holds the threading hook, an operating member which is operated to move the threading shaft, a threading operation mechanism which transmits the movement of the threading shaft to the threading hook to move the threading hook back and forth, and a restricting device which makes the threading operation mechanism inoperable when the spreader mechanism is attached to the sewing machine main body, and makes the threading operation mechanism operable when the spreader mechanism is detached from the sewing machine main body. | 03-12-2009 |
20090056608 | SEWING MACHINE - A sewing machine is provided. The sewing machine includes a top covering shaft mechanism, a spreader mechanism detachably attached to the top covering shaft mechanism from below and operable to catch a covering thread and to interlace the covering thread with a needle thread inserted into a needle to form covering stitches, and an operating member having a hook portion and rotatably attached to either one of the top covering shaft mechanism and the spreader mechanism. The other of the top covering shaft mechanism and the spreader mechanism has a protrusion with which the hook portion is engageable. The operating member is rotatable between a position at which the hook portion engages with the protrusion to lock the spreader mechanism with respect to the top covering shaft mechanism and another position at which the spreader mechanism is detachable from the top covering shaft mechanism. | 03-05-2009 |
20090056607 | CLOTH PRESSING DEVICE OF SEWING MACHINE - A cloth pressing device of a sewing machine is provided. The cloth pressing device includes a presser bar, a presser foot rotatably coupled to a lower end portion of the presser bar, an elastic member having a base end portion which is supported by the presser bar and a tip end portion which is engageable with a tip side portion of the presser foot to downwardly bias the tip side portion of the presser foot, and an adjusting mechanism operable to move the tip end portion of the elastic member between a position at which the tip end portion of the elastic member engages with the tip side portion of the presser foot and another position at which the tip end portion of the elastic member does not engage with the tip side portion of the presser foot. | 03-05-2009 |
20090050038 | ZIGZAG SEWING MACHINE - A zigzag sewing machine is provided. The zigzag sewing machine includes a stitching motor which moves a needle, a feeding motor which moves a feed dog to feed a cloth, a needle swinging motor which swings the needle, a multistage-operating portion operable to adjust at least one of a feed amount of the cloth and a swing amount of the needle in a minimum adjustable unit, and a control section which controls the stitching motor, the feeding motor and the needle swinging motor to carry out a zigzag sewing in accordance with the at least one of the feed amount and the swing amount adjusted by the multistage-operating portion. The control section is configured to selectively assign a first value and a second to the minimum adjustable unit depending on whether the stitching motor is in operation or not. | 02-26-2009 |
20090025621 | SEWING MACHINE - A sewing machine includes a needle, a holding frame having a stitchable area within which the needle is operable to perform stitching, storing means for storing sewing data on various embroidery patterns, indicating means for indicating, within the stitchable area, positions on the workpiece that is held by the holding frame, stitching region setting means for setting a stitching region in accordance with the positions indicated by the indicating means, embroidery pattern creating means for creating, in accordance with a position and a size of the stitching region, and based on the sewing data, embroidery pattern data on an embroidery pattern having a size that is fittable within the stitching region, and control means for controlling the needle and the holding frame to form the embroidery pattern on the workpiece within the stitching region in accordance with the embroidery pattern data. | 01-29-2009 |
20090020056 | CLOTH PRESSER DEVICE OF SEWING MACHINE - A cloth presser device of a sewing machine is provided. The cloth presser device includes a presser bar, a presser foot rotatably supported by the presser bar at an intermediate portion of the presser foot in a cloth feeding direction, an auxiliary presser rotatably coupled to the presser foot on an upstream side, in the cloth feeding direction, of a point at which the presser bar supports the presser foot, the auxiliary presser having a cloth pressing portion which presses a cloth on a downstream side of a portion of the auxiliary presser coupled to the presser foot, and a front presser spring attached to the presser bar and downwardly biasing the cloth pressing portion. A point at which the front presser spring presses the auxiliary presser is on a downstream side of the portion of the auxiliary presser coupled to the presser foot. | 01-22-2009 |
20090013912 | THREADING DEVICE OF SEWING MACHINE - A threading device of a sewing machine having a plurality of needles is provided. The threading device is configured to insert a thread through an eye of any one of the needles. The threading device includes a threading hook which moves forward to enter the eye of one of the needles and moves backward to catch and insert the thread through the eye, a threading mechanism which moves the threading hook to insert the thread, a selecting portion operable to select, among the plurality of needles, a needle through which the thread is to be inserted, a positioning mechanism which moves the threading hook to a position corresponding to the needle selected by operating the selecting portion, and a selected needle indicating device which distinguishably indicates the needle with respect to which the threading hook has been positioned by operating the selecting portion. | 01-15-2009 |
20080282952 | THREADING DEVICE OF SEWING MACHINE - A threading device includes a threading shaft holding a threading hook, a threading operation inputting mechanism from which a back-and-forth movement is given to the threading hook, a first supporting mechanism movably supporting the threading shaft in an X-axis direction, a second supporting mechanism movably supporting the threading shaft in a Y-axis direction, and a positioning mechanism which, when a movement operating portion is operated, moves the threading shaft along a path corresponding to an arrangement of each of the needles. The positioning mechanism includes a first cam mechanism which moves the threading shaft in the X-axis direction, and a second cam mechanism which moves the threading shaft in the second direction. The threading shaft is sequentially moved to positions corresponding to the arrangement of each of the needles in the horizontal directions in accordance with the operation of the movement operating portion. | 11-20-2008 |
20080250995 | THREAD CUTTING DEVICE OF SEWING MACHINE - The thread cutting device of a sewing machine provides a first thread catching member having a first thread catching portion for catching a thread positioned between the horizontal shuttle and the needle hole and carrying out forward and backward movements below the throat plate while the first thread catching portion catches the thread, a second thread catching member having a second thread catching portion for catching the thread laid between the needle hole and the first thread catching portion and guiding the thread caught by the first thread catching member to a fixed blade and to cut the thread by the fixed blade | 10-16-2008 |
20080236466 | SEWING MACHINE - A sewing machine includes an upper looper formed with a thread hole, an upper looper shaft which oscillates the upper looper between an upper position and a lower position, switching means operable to switch a coupled state and a decoupled state between the upper looper and the upper looper shaft, moving means for moving the upper looper, which has been decoupled from the upper looper shaft by the switching means, to the lower position, a thread guiding pipe formed with a thread discharging port, and first operating means operable to decouple the upper looper and the upper looper shaft via the switching means, and to move the thread discharging port of the thread guiding pipe to a position at which the thread discharging port is aligned with the thread hole of the upper looper in the lower position. | 10-02-2008 |
20080223273 | SEWING MACHINE - A sewing machine includes an embroidery frame which holds a cloth marked with a reference line and a reference point, a display portion which displays a virtual reference line, a virtual reference point, and an embroidery pattern having a size larger than the embroidery frame, means for displaying a sewing region corresponding to the embroidery frame on the display portion such that a section of the embroidery pattern, the virtual reference line and the virtual reference point are displayed inside the sewing region, means for acquiring position information of the reference point and another point on the reference line, sewing data correcting means for correcting sewing data on the embroidery pattern by interrelating the position information with the virtual reference line and the virtual reference point, and means for sewing the section of the embroidery pattern in accordance with the sewing data corrected by the sewing data correcting means. | 09-18-2008 |
20080206497 | METHOD OF MANUFACTURING SLEEVE FOR FLUID-DYNAMIC BEARING AND SLEEVE MANUFACTURED BY THE METHOD - A sleeve for a fluid-dynamic bearing is manufactured by molding to obtain a molded part, degreasing the molded part to obtain a degreased part, and sintering the degreased part. The molding includes placing a resin core having protrusions on an outer circumference thereof for transferring and forming dynamic-pressure generating grooves on the sleeve into a mold having a cavity corresponding to a shape of the sleeve, and injecting a molding material prepared by mixing a binder and metal or ceramic powders. The degreasing includes preparatory degreasing the molded part to remove a portion of the binder, and further degreasing the molded part, from which the portion of the binder is removed, by heating the molded part in a sintering furnace to thermally decompose the residual portion of the binder and the core. The sintering includes further heating the degreased part to sinter the metal powders or the ceramic powders. | 08-28-2008 |
20080202400 | UPPER LOOPER DRIVING DEVICE OF SEWING MACHINE - An upper looper driving device of a sewing machine is provided. The device includes an upper looper driving shaft which is rotatable around an axis thereof, an upper looper holder having an upper end portion at which the upper looper is held, an upper looper swinging arm having one end portion supported by the upper looper driving shaft such that a position of the upper looper swinging arm is adjustable along an axial direction of the upper looper driving shaft and the other end portion to which the upper looper holder is rotatably coupled, and an upper looper guide slidably holding the upper looper holder. The upper looper guide is supported by a frame of the sewing machine such that a position of the upper looper guide is adjustable along a direction parallel to the axial direction of the upper looper driving shaft. | 08-28-2008 |