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4501 results about "Sewing machine" patented technology

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

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

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

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

Cloth feeding mechanism for template sewing machine

The invention provides a cloth feeding mechanism for a template sewing machine, and belongs to the technical field of the sewing machine. According to the cloth feeding mechanism for the template sewing machine, the problems of high manufacture cost and narrow applicable range of the traditional cloth feeding mechanism for the template sewing machine are solved. The cloth feeding mechanism for the template sewing machine comprises a base, an X-direction driving motor, a Y-direction driving motor, a mounting seat and a sewing template used for fixing cloth, wherein the mounting seat is arranged on the base in a sliding mode; the sewing template is arranged on the mounting seat; an X-direction transmission mechanism capable of driving the mounting seat to move on the base is arranged between the X-direction driving motor and the mounting seat; a Y-direction transmission mechanism capable of driving the sewing template to move relative to the mounting seat is arranged between the Y-direction driving motor and the sewing template; under the driving of the Y-direction driving motor, the sewing template moves along the direction vertical to the movement direction of the mounting seat. The cloth feeding mechanism for the template sewing machine, which is disclosed by the invention, has the advantages of strong universality and low manufacture cost and can be used for sewing pieces of cloth of different sizes.
Owner:ZHEJIANG SHANGGONG GEM SEWING TECH CO LTD

Thread trimming and presser foot raising driving device of sewing machine

The invention provides a thread trimming and presser foot raising driving device of a sewing machine. The technical problems that thread trimming, thread loosening and presser foot raising are implemented by two existing thread trimming and presser foot raising driving devices, the cost is high, occupied space is large, noises are large, mounting time is long, and mounting is not facilitated are solved. The thread trimming and presser foot raising driving device of the sewing machine comprises a stepping motor, a shifting fork mechanism and a cam, wherein the shifting fork mechanism comprises a shifting rod, a fork rod, a sliding rod and at least two fixing rings; one end of the shifting rod and the cam are fixed on a spindle of the stepping motor; the other end of the shifting fork can extend in the fork rod and drives the fork rod to move; the fork rod is fixed on the sliding rod; the sliding rod is positioned in the two fixing rings and can slide in the fixing rings; and a movement trace of the cam and a free end of a presser foot raising connecting rod of the sewing machine are intersected. A lower thread trimming device and a thread slacking device are driven to perform thread trimming, thread clamping and thread slacking through the shifting fork mechanism, and presser foot raising is implemented through the cam.
Owner:STRONG H MACHINERY TECH

Sewing machine

The invention provides a sewing machine. The sewing machine comprises a main shaft, a material feeding mechanism, a presser foot lifting mechanism, a driving motor, a needle pitch adjusting power transmission mechanism and a presser foot lifting transmission mechanism, wherein the material feeding mechanism is provided with a material feeding swinging seat; the needle pitch adjusting power transmission mechanism enables power transmission to continuously exist between the driving motor and the material feeding swinging seat; a collision avoidance structure is arranged in the presser foot lifting transmission mechanism; a corner of an output shaft of the driving motor is provided with a needle pitch active adjusting area and a presser foot lifting area; when the output shaft of the drivingmotor operates within the needle pitch active adjusting area, the sewing machine is provided with effective needle pitch; the collision avoidance structure enables no power transmission to exist between the driving motor and a presser foot lifting mechanism; when the output shaft of the driving motor operates within the presser foot lifting area, the presser foot lifting transmission mechanism enables power transmission to exist between the driving motor and the presser foot lifting mechanism; and the absolute value of a needle pitch corresponding to an angle of the material feeding swinging seat is not larger than a maximum absolute value of the effective needle pitch. According to the sewing machine, timely response, suspended seam and very good needle pitch adjusting stability of the needle pitch adjusting mechanism are realized.
Owner:JACK SEWING MASCH CO LTD
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