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9477 results about "Sewing machine" patented technology

Full-automatic material taking and material feeding sewing machine

The invention relates to a full-automatic material taking and material feeding sewing machine. The full-automatic material taking and material feeding sewing machine comprises a fabric taking device, a fabric position correction system, an air pump system and a sewing material pressing and feeding device, wherein a horizontal guide rail is arranged in the X direction above a machine frame; the entire fabric taking device can conduct movement in X direction along the horizontal guide rail and can further conduct movement in Z direction on the horizontal guide rail; a linear module in a Y direction is arranged at the lower part of the fabric taking device; a rotating and regulating mechanism is arranged at the lower part of the linear module in the Y direction; a sucking disc fixing plate is arranged at the lower part of the rotating and regulating mechanism; the fabric position correction system comprises a fabric position sensing device; the fabric position sensing device comprises at least three sensors and a driving system that monitors the position of the fabric and transmits the signals of the fabric position deviation to the fabric taking device; the driving system corrects the placing position of the fabric through adjusting the global movement of the fabric taking device in the X direction, the Y-direction movement of the linear module in the Y direction and the rotating angles of the rotating and regulating mechanism.
Owner:上海富山精密机械科技有限公司

Pneumatic full-automatic pocket patching machine

The invention discloses a pneumatic full-automatic pocket patching machine. The machine comprises a rack steel plate, a pneumatic automatic non-ironing and folding mechanism and the like, wherein the pneumatic automatic non-ironing and folding mechanism is arranged above the rear part of the rack steel plate; a pneumatic automatic feeding mechanism is transversely arranged in front of the pneumatic automatic non-ironing and folding mechanism; a coordinate pattern transmission mechanism is arranged on the left of the pneumatic automatic non-ironing and folding mechanism; a rotating shuttle type pattern sewing machine sewing head is arranged in front of the rack steel plate on the right and is transversely arranged; an air pressure adjusting mounting plate is arranged at the left rear end of the rack steel plate; solenoid valve mounting plates are arranged on the right of the air pressure adjusting mounting plate; a shield is arranged on the rear half part of the whole rack steel plate; stainless steel coamings are arranged below a stainless steel working table; a first starting switch and a second starting switch are arranged above one stainless steel coaming; a dust collector is arranged on the left of a rack; and an electrical appliance control box is arranged behind the rack and on the lower part of the rack steel plate. The machine has the effects of lowering the manufacturing cost and realizing automatic programs such as non-ironing programs and the like.
Owner:SHANGHAI GUIYI SEWING EQUIP MFG

Base thread monitoring device for sewing machine

The invention provides a base thread monitoring device for a sewing machine. The sewing machine comprises a base plate, a bobbin case and a bobbin core which is filled with base thread in a winding mode, wherein the bobbin core is completely contained in the bobbin case, a thread winding column of the bobbin core is provided with a light reflecting surface, a light transmitting hole is formed in the side wall of the bobbin case, a photoelectric sensor is installed on the base plate, the photoelectric sensor is arranged on the outer side of the bobbin case, and is arranged opposite to the light transmitting hole, and the photoelectric sensor is composed of a receiver and a emitter. When the base thread on the thread winding column is large in amount, the base thread can shield the light reflecting surface. When the base thread is almost used out, the light reflecting surface is gradually exposed, the light reflecting surface can receive a signal which is given out by the emitter and enters through the light transmitting hole, and can reflect the signal to the receiver, the receiver gives out a signal after receiving the signal to have control over the sewing machine, and achieves the objective that the sewing machine cannot carry out sewing of the next time after finishing the current sewing, and therefore the phenomenon that the quality of a sewing product is influenced by lack of the base thread can be avoided.
Owner:JACK SEWING MASCH CO LTD

Robot sewing system for three-dimensional composite material perform

The invention relates to a 3D composite material prefabrication piece robot sewing system, which comprises a robot, a single-face sewing machine, a structured light vision sensor and an image processing unit; the single-face sewing machine is connected with a shell of the structure light vision sensor and fixed at the tail end of an arm of the robot; the structured light vision sensor comprises a laser and a CCD video camera which are respectively fixed inside an shell of the structured light vision sensor, the included angle of a light axis centerline of the CCD video camera and a laser structure light surface of the laser is 30 to 60 degrees, which is perpendicular with the work-piece surface of a sewing material; the image processing unit comprises an image acquisition card, a PC machine and an image processing program library, the image processing program library comprises a sewing material type identification module, an image pre-processing module, an image post-processing module and a control capacity output module; the CCD video camera is connected with the image acquisition card through an video data line, the image acquisition card is arranged inside a main board slot of the PC machine, the PC machine is connected with the robot through a serial port.
Owner:TIANJIN POLYTECHNIC UNIV

Label sewing fully automatic socks packaging machine

ActiveCN103482108ARealize automatic delivery hookRealize automatic sewingPackagingArticle feedersSOCKSEngineering
The invention discloses a label sewing fully automatic socks packaging machine. The label sewing fully automatic socks packaging machine comprises a vibrating disk bracket, wherein the vibrating disk bracket is provided with a vibrating disk; a spiral material passage is arranged on the outer side of the vibrating disk; the lower end of the spiral material passage is connected with a hook mounting component; a socks feeding component is arranged in front of the hook mounting component; a vertical paper card bin component is arranged between the hook mounting component and the socks feeding component; a label sewing machine is arranged behind the socks feeding component; the hook mounting component and the socks feeding component are arranged on a same longitudinally arranged linear guide rail. The label sewing fully automatic socks packaging machine has the advantages that (1) the vibrating disk is arranged, so that automatic hook feeding can be realized, (2) the hook mounting component is arranged, so that automatic hook mounting can be realized, (3) the paper card bin component is arranged, so that automatic paper card feeding can be realized, (4) the socks feeding component is arranged, so that automatic socks feeding can be realized, and (5) the label sewing machine is arranged, so that automatic sewing can be realized.
Owner:佛山市南海大欣针织业有限公司

Feeding mechanism downward movement structure controlled by presser foot lifting mechanism and sewing machine

The invention provides a feeding mechanism downward movement structure controlled by a presser foot lifting mechanism and a sewing machine. The feeding mechanism downward movement structure includes a presser foot lifting wrench, an eccentric shaft rotatably installed in a machine housing, a dental articulator having a second swinging supporting point, and a feeding tooth installed at one end of the dental articulator; a sliding groove is formed in the dental articulator, the eccentric shaft has a shaft body part and a shaft eccentric part eccentrically arranged on the shaft body part, the presser foot lifting wrench is connected with the shaft body part of the eccentric shaft through a first transmission mechanism, and the shaft eccentric part of the eccentric shaft can be rotatably installed in the sliding groove of the dental articulator and cooperated with the sliding groove in a sliding mode; when a presser foot is lifted, the presser foot lifting wrench swings around a first swinging supporting point and swings around the second swinging supporting point through a first transmission mechanism and an eccentric shaft driven dental articulator, so that the end, provided with the feeding tooth, of the dental articulator moves downward to the upper surface of a needle plate, the effective height between the presser foot and the needle plate after the presser foot is lifted is ensured, and therefore a to-be-sewed material is easily delivered between the presser foot and the needle plate before sewing is started.
Owner:JACK SEWING MASCH CO LTD

Sewing machine for up-down differential feeding

The invention relates to a sewing machine for up-down differential feeding. The sewing machine comprises a secondary feeding adjusting mechanism, a feeding shaft and a feed lifting rock shaft, wherein the secondary feeding adjusting mechanism comprises a lower differential feeding adjusting crank and a first tooth frame seat which are fixed on the feeding shaft, a lower differential feeding crank which movably sleeves the feeding shaft and a lower differential transmission crank which movably sleeves the feed lifting rock shaft; the first tooth frame seat is connected with a feeding tooth; the lower differential feeding crank is connected with a lower differential feeding tooth; the lower differential feeding adjusting crank, a first lower differential feeding connecting rod, the lower differential transmission crank, a second lower differential feeding connecting rod and the lower differential feeding crank are hinged and linked in sequence; the hinging position between the lower differential feeding adjusting crank and the first lower differential feeding connecting rod is adjustable. The hinging position is adjusted so that a force arm relation between the lower differential feeding adjusting crank and the first lower differential feeding connecting rod is changed and a relation of swinging and transferring the feeding shaft to the feeding tooth and the lower differential feeding tooth is changed, namely the lower differential feeding adjustment is realized.
Owner:宁波新三合自动化有限公司

Device and method for detecting amount of bottom thread of sewing machine

The invention provides a device for detecting the amount of bottom thread of a sewing machine. The sewing machine comprises a bottom plate, a rotating shuttle and an electronic control module, wherein the rotating shuttle comprises a shuttle shell and a shuttle core; the shuttle core comprises a winding post and two flanges; at least one flange in the two flanges is provided with a first surface part and a second surface part on the outer surface; a light hole is formed on the outer wall of the shuttle shell; the first surface part or the second surface part is exposed outside from the light hole; the sewing machine also comprises a sensor fixed in the bottom plate; the sensor comprises a transmitter used for transmitting light, and a receiver used for receiving light; the receiver and the transmitter of the sensor just face to the first surface part or the second surface part exposed outside from the light hole, and the light reflection capabilities of the first surface part and the second surface part are different from each other; the sensor is connected with a signal processing module; the signal processing module is connected with the electronic control module. The device for detecting the amount of the bottom thread of the sewing machine is capable of timely detecting whether the bottom thread is used up or not in real time.
Owner:JACK SEWING MASCH CO LTD

Systems and methods for assembling components of a fabric-covered prosthetic heart valve

A system and method for assembling a prosthetic heart valve, including a procedure for tightly wrapping fabric around a heart valve support stent. The support stent typically includes alternating cusps and commissures that create a highly contoured undulating outflow edge. The system includes a mandrel for retaining tension without manual assistance in a tubular length of fabric wrapped over the support stent. The mandrel may include an inner clamping mechanism for holding the first end of the fabric tube, a pedestal tube on which the support stent rests and through which the fabric tube passes, and an outer clamping mechanism for holding the free end of the fabric tube. The inner and outer clamping mechanisms include discrete clamps spaced apart 120° from each other that pull the fabric only in the cusps of the support stent. The inner clamping mechanism, outer clamping mechanism, and pedestal are relatively axially movable. Once the fabric is retained over the support stent, the mandrel may be placed in a chuck of a sewing machine system for automatically forming the seam. A small shuttle with bobbin thread reciprocates within a channel inside of the support stent and cooperates with the sewing machine needle to form a lock-stitch in the fabric tube. The mechanization of the fabric covering procedure greatly enhances manufacturing throughput and reduces ergonomic strain on workers.
Owner:EDWARDS LIFESCIENCES CORP

Built-in type automatic pressure foot lifting mechanism of sewing machine

The invention discloses a built-in type automatic pressure foot lifting mechanism of a sewing machine. The built-in type automatic pressure foot lifting mechanism comprises a housing, a linear driver, a back lever, a front lever and a pull rod, wherein the housing comprises an upright column part; a cavity is formed in the upright column part; the linear driver is fixedly mounted in the cavity and comprises a drag rod which is capable of linearly moving in a reciprocating manner; a back pin hole of the back lever is hinged with one end part of the drag rod, a first front pin hole of the back lever is rotationally connected onto the housing through a pin shaft, and the distance from the back pin hole to the first front pin hole is greater than the distance from a second front pin hole to the first front pin hole; the front lever comprises three pin holes, the first pin hole is rotationally connected onto the housing through a pin shaft, and the second pin hole is hinged with a pressure foot lifting plate; and the back end of the pull rod is hinged with the second front pin hole of the back lever, and the front end of the pull rod is hinged with the third pin hole of the front lever. According to the built-in type automatic pressure foot lifting mechanism, the linear driver is arranged in the housing, so the structure of the whole mechanism is more compact, the appearance of the mechanism is more attractive, and vibration and noise produced when the automatic pressure foot lifting device works are also reduced.
Owner:JACK SEWING MASCH CO LTD

Bird nest removing device for sewing machine and using method thereof

The invention provides a bird nest removing device for a sewing machine and a using method thereof. The bird nest removing device comprises a pull hook, a thread clamping plate, a machine needle and a presser foot plate, wherein the pull hook, the thread clamping plate, the machine needle and the presser foot plate are located below a machine head. The drag hook is connected with the machine head through a rotating shaft, the machine needle is provided with a needle eye allowing threads to penetrate through, the presser foot plate is located on a needle plate, the presser foot plate is provided with a thread passing groove corresponding to the machine needle, the thread passing groove extends in the moving direction of a sewing material, and a thread cutter is arranged at the bottom of the thread passing groove. According to the bird nest removing device for the sewing machine and the using method thereof, an arc swing hook thread clamping device is used for clamping machine needle thread residues after thread trimming, the enough stable thread quantity is provided for starting sewing through thread clamping and loosening time coordination of two thread clamp holders in the seam starting process next time, seam starting upper threads can be tightened quickly under the condition that bottom threads do not exist, the clamped thread residues are cut off at the position close to the sewing material needle hole, the remaining thread residues are short, and the problem of bird nest thread residues is solved thoroughly.
Owner:JACK SEWING MASCH CO LTD

Translucent applique cutwork machine embroidery and method

InactiveUS20050211147A1Duplicates appearanceEnhanced and perfectly stitched appearanceEmbroidering machines apparatusSewing machineCivil engineering
Translucent applique cutwork embroidery designs can be performed by a sewing machine, preferably a computerized machine with digitized design embroidery patterns. The method employs a foundation fabric 11 and a removable stabilizer 12. Once a cutwork section 14 in an applique cutwork embroidery design is defined with a set of concentric underlay stitches 13 that bind said foundation fabric to removable stabilizer, said foundation fabric is removed from said cutwork section. An applique fabric 16 is then stitched in place over the cutwork section with another set of concentric underlay stitches 13 that are sewn in approximately the same location as the first set of concentric underlay stitches. Excess applique fabric 16 is cut away. The applique cutwork seam 18 joining applique fabric to foundation fabric is finished with zigzag stitches 17 that overcast all said concentric underlay stitches. Where appropriate, a machine embroidery design 19 is stitched on top of said applique fabric, cascading onto said foundation fabric. Said applique cutwork seam is concealed with satin stitches, or similar concealing stitches 20. The balance of the embroidery design is stitched onto said foundation fabric. When said removable stabilizer is removed, no further trimming of fabrics or threads is required.
Owner:WATERFIELD LAURA M
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