366results about "Needle bars" patented technology

An automated system that can be used for prosthetic heart valve manufacturing or suturing procedures. The system can include a first automated fixture that includes an articulating arm and a target device holder. The system can also include one or more additional automated fixtures, which can be configured as one or more suturing arms that include another articulating arm and a needle holder. The first automated fixture can be configured to rotate a target device held by the holder to allow the one or more additional automated fixtures to perform operations such as form sutures on the target device without intervention of a human operator. The system can include a display system configured to display status information of a suturing procedure.

The invention provides a sewing machine and a sewing method thereof, and belongs to the technical field of sewing equipment. The problem that an existing sewing machine is insufficient in sewing quality is solved. The sewing machine comprises a base, a needle plate with a needle falling hole, a bottom shuttle located below the needle plate, a straight-rod-shaped transmission rod and a strip-shaped thread shifting rod, the transmission rod is located on the side portion of the bottom shuttle and movably connected to the base, the end, close to the bottom shuttle, of the transmission rod is fixedly connected with one end of the thread shifting rod, and the other end of the transmission rod is connected with a thread shifting driving assembly. Under the driving of the thread shifting driving assembly, the transmission rod can perform reciprocating motion in the axial direction and swing at the same time, so that the other end of the thread shifting rod performs circumferential circulating motion and can be located between the needle falling hole and the bottom shuttle. Reverse stitches can be avoided in the sewing process, the sewing machine has the advantage of being low in manufacturing cost, and the sewing quality is further improved.

A wear-resistant coating with a low friction coefficient of aluminum titanium nitride-tungsten disulfide (AlTiN—WS2) and a preparation method are provided. The preparation method includes: (1) performing a titanium ion cleaning on a preprocessed substrate by using a titanium ion arc target to obtain a cleaned substrate; (2) depositing a titanium transition coating on the cleaned substrate by using a multi-arc ion plating to obtain a deposited substrate; (3) depositing an aluminum titanium nitride (AlTiN) coating on the deposited substrate by using an AlTi alloy ion arc target to obtain an AlTiN coating substrate; and (4) depositing a titanium coating and a tungsten disulfide (WS2) coating by using a high power impulse magnetron sputtering (HiPIMS) to obtain the wear-resistant coating of AlTiN—WS2. The wear-resistant coating is prepared by pre-depositing the AlTiN solid coating using the multi-arc ion plating, and followed by depositing the WS2 solid lubrication coating using HiPIMS.

The utility model relates to the technical field of sewing machines, and discloses a presser foot lifting mechanism of a sewing machine, which comprises the sewing machine, a motor is fixedly connected on the side wall of the sewing machine, an output shaft of the motor extends into the sewing machine and is fixedly connected with a turntable, and a connecting rod is fixedly connected on the side wall of the turntable. The rod wall of the connecting rod is movably sleeved with a movable rod, a connecting cylinder is fixedly connected to the bottom of the movable rod, a damping pad is slidably arranged on the inner wall of the connecting cylinder, and a pressing rod is fixedly connected to the bottom of the damping pad. The output shaft of the motor rotates to drive the rotating disc to rotate, the rotating disc rotates to drive the connecting rod to move, the movable rod is movably connected with the connecting rod in a sleeved mode to move along with the rotating disc, the movable rod moves to drive the connecting cylinder, the pressing rod and the presser lifting foot to move along the rotating track of the rotating disc, sewing cloth is moved, automatic feeding is conducted, and sewing efficiency is improved.

The utility model relates to a multifunctional cloth sewing device, and belongs to the technical field of textile machinery, the multifunctional cloth sewing device comprises a sewing table top and a controller fixedly mounted on the sewing table top, and the sewing table top is provided with a sewing mechanism and a pressing mechanism; the sewing mechanism comprises a mounting frame fixedly connected to the sewing table top, a first air cylinder fixedly mounted on the upper side of the mounting frame, a pressing plate fixedly connected with an output shaft of the first air cylinder and a sewing frame arranged below the pressing plate. A plurality of mounting plates are inserted into the inner side of the suture frame, a suture needle is fixedly mounted on the lower side of each mounting plate, and an elastic assembly is arranged between each mounting plate and the suture frame. According to the multifunctional cloth sewing device, the matched sewing needles can be conveniently and rapidly switched according to the sewing requirement of cloth, the adaptability of the sewing device is improved, the sewing device can adapt to cloth of different materials or thicknesses, the sewing efficiency and quality are guaranteed, and the practicability of the device is improved.

The utility model discloses a needle mounting clamp which comprises a left clamp and a right clamp, and the left clamp comprises a first long handle and a first square head connected with the first long handle; the right clamp comprises a second long handle and a second square head connected with the second long handle; and a groove for placing the head part of the machine needle is formed in the matching surface of the second square head and the first square head. In the needle installing process, a plurality of needle heads are inserted into the clamp firstly, operation is safer and more reliable, meanwhile, ten needle heads are regarded as a group and placed into the needle clamp in groups, and the needle installing efficiency is improved.

The utility model discloses a carpet textile machine which comprises a machine frame and further comprises a yarn combing knife rest which is arranged on the machine frame, a combing plate is arranged on the yarn combing knife rest, the end portion of the yarn combing knife rest is connected with a center shaft, the center shaft is connected with an installation support, the installation support is installed on a fixing block, and the fixing block is fixed on the machine frame. The fixed support is arranged on one side of the fixed block, a movable frame is arranged on the fixed support in a sliding mode in the vertical direction, a first connecting shaft and a second connecting shaft are arranged on the movable frame in a penetrating mode, the first connecting shaft is connected with a first crochet hook plate, the second connecting shaft is connected with a second crochet hook plate, and the first crochet hook plate and the second crochet hook plate are located on the two sides of the yarn combing knife rest respectively; and a pushing assembly. The embossing machine is reasonable in structural design, and the first crochet hook plate and the second crochet hook plate can move up and down and translate in a reciprocating mode through the arrangement of the thread combing knife rest, the first crochet hook plate, the second crochet hook plate, the driving assembly and the pushing assembly, so that embossing sewing is achieved.

The utility model discloses an L-shaped sewing device, which belongs to the technical field of sewing and comprises a frame. The limiting block is arranged on the rack, and an arc-shaped groove is formed in the limiting block; the L-shaped needle group comprises a sliding shaft and an L-shaped needle, and the sliding shaft is in sliding connection with the arc-shaped groove; when the sliding shaft moves close to the fabric along the contour direction of the arc-shaped groove, the needle tip of the L-shaped needle gradually penetrates into the fabric; when the sliding shaft slides to the tail end of the arc-shaped groove, the needle point of the L-shaped needle is perpendicular to the plane of the fabric. The L-shaped needle is matched with the arc-shaped groove, so that the L-shaped needle can move on a curve path, and the L-shaped needle can penetrate through the thick fabric more smoothly and is suitable for the thick fabric.

The invention discloses zipper belt sewing equipment, and relates to the field of garment processing. A zipper belt sewing device comprises a rack, a sewing machine head, a cloth conveying device and a zipper tooth traction device. The machine frame is provided with a working table top, and the sewing machine head comprises a sewing needle. The cloth conveying device comprises a clamping plate used for bearing and tensioning cloth, and the clamping plate can move in the first direction and is used for conveying the cloth to the working table top. The chain tooth traction device is used for conveying chain teeth to the working table in the first direction; the cloth conveying device and the chain tooth traction device can conduct synchronous conveying. The problem that in the prior art, sheet-shaped or special-shaped cloth of different sizes cannot be conveyed can be solved.

An automated system that can be used for prosthetic heart valve manufacturing or suturing procedures. The system includes automated fixtures that maneuver a needle and a target device. The automated fixtures can be suturing arms, target device holders, needle transfer fixtures, and / or needle holders. The automated fixtures can rotate a target device held by the holder to allow one or more additional automated fixtures to perform operations such as form sutures on the target device without intervention of a human operator. The system can include a display system configured to display status information of a suturing procedure.

The invention relates to a sewing machine and a cloth pricking stroke adjusting device thereof. The cloth pricking stroke adjusting device comprises a driving mechanism, and an output shaft of the driving mechanism rotates to drive a presser foot lifting cam and an adjusting crank to rotate to a working position; the working positions comprise at least one adjusting position of the presser foot lifting cam and at least one adjusting position of the adjusting crank; the adjusting position of the presser foot lifting cam corresponds to the upper limit position and the lower limit position of the foot lifting module; the adjusting crank is hinged to the adjusting connecting rod, the adjusting position of the adjusting crank corresponds to the target angle of the adjusting crank, and the driving mechanism drives the adjusting crank to swing to the target angle, so that the position of the fixed end of the adjusting connecting rod changes along with the target angle of the adjusting crank. By adjusting the position target of the fixed end of the connecting rod, the target cloth puncturing stroke is correspondingly adjusted, the cloth puncturing stroke adjusting device is applied to the sewing machine, and the sewing machine with the cloth puncturing stroke adjusting function is obtained.

A needle bar holder for a sewing machine head, including: a revolver configured to hold a plurality of separate needle bars; a motor operably coupled to the revolver for rotating the revolver; and a means for ensuring alignment and stability of the revolver when one of the plurality of separate needle bars are selected for a sewing process.

The utility model relates to a double-shaft motor oil supply mechanism for a sewing machine and the sewing machine, and the double-shaft motor oil supply mechanism for the sewing machine comprises a double-shaft motor assembly which comprises a first output shaft and a second output shaft; the oil supply assembly is matched with the first output shaft; and the stitch length adjusting assembly is matched with the second output shaft. According to the technical scheme, the problem that in the prior art, lubricating oil conveying of a sewing machine is not stable is effectively solved.

The utility model discloses a pattern die fine adjustment structure of a multifunctional household sewing machine, which comprises a pattern die, a pattern die pawl correspondingly matched with the position of the pattern die is arranged on the pattern die, a baffle is arranged at the tail end of the pattern die pawl, and a pattern die pawl swing frame is arranged on one side of the baffle. A screw capable of driving the pattern mold pawl swing frame to adjust the left-right position is arranged on the pattern mold pawl swing frame, the screw is in threaded connection with the pattern mold pawl swing frame, the tail end of the screw makes contact with the baffle, an induction plate moving along with the pattern mold pawl swing frame is connected to the pattern mold pawl swing frame, and a needle rod assembly moving along with the induction plate is connected to the induction plate. The utility model has the beneficial effects that the position of the pattern die pawl swing frame can be quickly adjusted, the left-right position of the needle bar assembly which is correspondingly matched with the pattern die can be quickly adjusted, the quick fine adjustment effect is realized, the working efficiency can be improved, the precision of parts can be reduced, and the production cost is reduced.

The present invention provides a piercing mechanism and a sewing machine with a variable needle bar stroke. The piercing mechanism includes a needle bar eccentric, an adjuster, an adjusting connecting rod, an adjusting crank, an adjusting drive unit, a needle bar connecting rod, a needle bar connecting column, a needle bar, and a needle mounted at the lower end of the needle bar. The needle bar eccentric has an eccentric connecting shaft. The eccentric connecting shaft, one end of the adjusting connecting rod, and one end of the needle bar connecting rod are all hinged to the adjuster. The hinge points of the eccentric connecting shaft and the adjuster, the adjusting connecting rod and the adjuster, and the needle bar connecting rod and the adjuster are staggered. The other end of the adjusting connecting rod is hinged to the adjusting crank, and the other end of the needle bar connecting rod is hinged to the needle bar connecting column, which is fixed to the needle bar. When the adjusting drive unit acts on the adjusting crank, it drives the adjusting crank to rotate, changing the position angle of the adjuster. The present invention enables switching between different needle bar strokes in a single sewing machine, cost-effectively meeting the different needle bar stroke requirements for thin, medium, and thick fabrics.

The utility model belongs to the technical field of sewing machines. The problem that in the prior art, a single-needle and double-needle switching mechanism is poor in use reliability is solved. The needle bar clutch reset device of the double-needle sewing machine comprises a supporting frame and a locking and unlocking device, needle bars are arranged on the supporting frame in a penetrating mode, the locking and unlocking device is arranged on the supporting frame and used for locking or unlocking the needle bars, and clutch assemblies are arranged on the two needle bars in a sleeving mode at the same time. The clutch assembly comprises a clutch base, two unlocking levers arranged on the clutch base and used for unlocking the needle bars respectively and a locking rod used for locking the two needle bars at the same time, the main shaft is sleeved with an eccentric wheel, the eccentric wheel is connected with the clutch base through a swing rod, and the supporting frame is fixedly connected with a double-stroke air cylinder; an output shaft of the double-stroke air cylinder is horizontally arranged and connected with a trigger rod, the trigger push rod is provided with a protruding part arranged upwards, the protruding part is located below the unlocking lever and the locking rod, and the protruding part, the unlocking lever and the locking rod are located on the same vertical plane. The needle bar clutch reset device has the advantage that the use reliability of the needle bar clutch reset device can be improved.

The invention relates to a self-adaptive track sewing machine which comprises a rack, a clothes template, a sewing machine head and a sewing table. The costume template comprises an upper mold frame and a lower mold frame, and the upper mold frame realizes Z-axis lifting through a first lifting mechanism and realizes X-axis movement through a first reciprocating mechanism; x-axis movement of the lower die frame is achieved through the second reciprocating mechanism, and Y-axis movement of the sewing machine head is achieved through the third reciprocating mechanism. The upper mold frame and the lower mold frame are respectively provided with a first sliding groove structure, a second sliding groove structure and a slidable clamping plate piece, the position of the clamping plate piece is automatically adjusted by being matched with a detachable adjusting rod assembly, and the position of the clamping plate piece is locked by a first limiting mechanism and a second limiting mechanism (comprising bead screws and tooth structures). Z-axis lifting of the sewing table is achieved through the second lifting mechanism, adjustment interference is avoided, and clamping plate pieces are supported in an auxiliary mode. According to the scheme, needle moving track adjustment can be completed without detaching the template, efficiency and precision are improved, and one template has multiple purposes.

A sewing machine needle fixing and installing device belongs to the technical field of sewing machines and comprises a needle cylinder, a movable clamping piece and a machine needle, sliding grooves are symmetrically formed in the inner wall of the needle cylinder, the movable clamping piece is movably arranged on the sliding grooves, and the upper end of the machine needle is installed on the movable clamping piece; the movable clamping piece comprises a first fixing block, a second fixing block and a threaded rod, an inner screw hole is formed in the first fixing block, a counter bore is formed in the second fixing block, the counter bore and the inner screw hole are formed in the same axis, one end of the threaded rod is movably arranged in the counter bore, and the other end of the threaded rod penetrates through the counter bore and is arranged in the inner screw hole in a threaded connection mode. A first screw hole and a second screw hole are symmetrically formed in the outer wall of the needle cylinder, the first screw hole is close to the counter bore and movably connected with the counter bore, the second screw hole is close to the inner screw hole and movably connected with the inner screw hole, the first screw hole is in threaded connection with a fastener, and a mounting groove is formed between the first fixing block and the second fixing block. The machine needle can be conveniently installed in place and fastened, and the phenomena that the machine needle is not firmly installed and the machine needle is inclined are avoided.

Robotic sewing device comprising: a sewing head body; an upper arm attachable to the sewing head body and including a sewing needle aligned along a first axis; an engine; and a lower arm rotatably attachable to the sewing head body to be rotatable by the motor about a second axis defined transversely with respect to the first axis, the lower arm comprising: a needle plate; a butterfly gripper; a first drive train extendable through the forearm and configured to maintain a position of the throat plate during forearm rotation; and a second drive train extendable through the forearm and configured to drive the butterfly gripper during forearm rotation.

The invention provides a sewing machine which can restrain loosening of a retainer and improve position reproducibility. The sewing machine includes: a head that drives a needle bar that holds a sewing machine needle; a base part for holding the shuttle below the head part; a drive mechanism having an annular mounting portion provided on the outer periphery of the base portion, the drive mechanism moving the mounting portion in the axial direction of the base portion and in the circumferential direction around the axis; and a holder which is detachably mounted on the mounting part and holds the sewing object. The mounting part is provided with a V-shaped clamped part, and the V-shaped clamped part is provided with a pair of inclined surfaces which face each other in the circumferential direction. The holder has: an engagement part that engages between the pair of inclined surfaces; and an adjusting part for holding the clamping part in a manner that the position can be adjusted.

The utility model discloses a stitch length adjusting mechanism and a sewing machine, the stitch length adjusting mechanism comprises a base, an adjusting rod, a knob and a locking piece, the adjusting rod can rotate around the axis of the adjusting rod relative to the base; the adjusting rod is in sliding connection with the knob in the axial direction, and the knob and the adjusting rod can rotate synchronously; the locking piece is movably arranged on the base in the direction perpendicular to the axial direction of the adjusting rod, and the locking piece is provided with a locking position and an unlocking position; an unlocking structure is arranged between the knob and the locking piece, the knob is provided with a first position and a second position relative to the adjusting rod, and when the locking piece is located at the locking position, the knob is located at the first position; when the knob moves from the first position to the second position, the unlocking structure drives the locking piece to be far away from the adjusting rod and move to the unlocking position, and unlocking operation of the stitch length adjusting mechanism is simple.

The invention relates to the technical field of driving machine heads, and discloses a double-cam single-driving machine head which comprises a main shaft, the main shaft is rotationally connected to the inner side of a shell, a first rotating ring is fixedly connected to the outer wall of the main shaft, a sleeve shaft is fixedly connected to the rear end of the main shaft, and a second rotating ring is rotationally connected to the outer wall of the sleeve shaft; a pause ring is fixedly connected to the front end of the sleeve shaft, a ring groove is formed in the front side of the pause ring, a first rotating rod is rotationally connected to the inner side of the shell, a first connecting rod is fixedly connected to the outer wall of the first rotating rod, and a cylinder is rotationally connected to the other end of the first connecting rod. The main shaft rotates to drive the first rotating ring and the sleeve shaft to rotate synchronously, the second rotating ring drives the pause ring to rotate accordingly, the cylinder slides in the ring groove, and when the ring groove rotates to the top, the cylinder is pushed to drive the first connecting rod to swing upwards around the first rotating rod, so that the pause ring is decelerated, stable deceleration of equipment when the equipment runs to a preset position is achieved, and high-speed collision of components is avoided; and mechanical loss and operation noise are reduced.

The utility model provides a sewing device for a safety air bag, which relates to the technical field of safety air bag sewing and comprises a workbench, a transmission component is arranged on the workbench and comprises a turntable, a rotating frame is fixedly connected onto the turntable, a second rotating shaft is rotatably connected onto the rotating frame, and a second fixing block is fixedly connected onto the second rotating shaft. A first rotating shaft is fixedly connected to the second fixing block, a connecting block is rotatably connected to the end, away from the second fixing block, of the first rotating shaft, a pricking needle is fixedly connected to the bottom of the connecting block, a fixing frame is fixedly connected to the workbench, a transmission frame is slidably connected to the fixing frame on the workbench, and a compression part is fixedly connected to the bottom of the transmission frame; the counter-acting force of the material to the sewing needle is more stable, the sewing convenience is improved, and the problems that in the prior art, when a safety air bag with high strength is sewn, a pricking needle is likely to be broken, and sewing is not easy are solved.

The utility model provides a feeding upper pulling machine, including: casing, needle bar mechanism, presser foot mechanism and feeding mechanism, the inside of casing is provided with rotatable main shaft to drive needle bar mechanism to do reciprocating motion, the presser foot mechanism is provided with presser foot drive source and can independently rotate presser foot wheel, in addition, the feeding mechanism is installed in the casing, and the feeding mechanism is installed in the casing. The feeding device comprises a driving shaft, a feeding shaft, a feeding driving source, a feeding wheel and a steering assembly, the driving shaft is transversely connected to the feeding driving source, the feeding shaft is longitudinally installed on the machine shell, the feeding driving source drives the driving shaft to transversely rotate, and the steering assembly drives the feeding wheel to rotate. The steering assembly can convert transverse rotation into longitudinal rotation so as to drive the feeding shaft and the feeding wheel to synchronously and longitudinally rotate, so that the needle bar mechanism, the presser foot mechanism and the feeding mechanism can independently operate, and then an internal mechanism of a conventional upper pulling machine can be effectively replaced; therefore, the space configuration of the needle rod mechanism and the feeding mechanism in the machine shell can be improved.

The utility model discloses a sewing machine balancing device and a sewing machine. The sewing machine balancing device comprises a thread passing seat shaft; the thread take-up crank is sleeved on the thread passing seat shaft; the balance assembly is connected with the thread take-up crank, and a height difference exists between the mass center of the balance assembly and the axis of the thread take-up crank; when the needle bar assembly connected with the thread passing seat shaft moves to the highest point, the thread take-up crank swings along with the thread passing seat shaft and enables the balance assembly to swing to the lowest point; when the needle bar assembly moves to the lowest point, the thread take-up crank swings along with the thread passing seat shaft and enables the balance assembly to swing to the highest point. According to the sewing machine, the balancing assembly is connected to the thread take-up crank, the unbalanced vertical inertia force generated when the needle rod assembly moves is counteracted through the inertia force generated by the balancing assembly, vibration of the whole sewing machine is reduced through balancing of the inertia force, mainly vibrating, of the needle rod assembly, and the working reliability and stability of the sewing machine are improved.

A sewing machine includes a needle bar, a needle plate formed with a needle hole, a presser bar, a sewing machine motor, a presser motor, and a controller. The controller is configured to perform a first-stitch operation of, at start or restart of sewing, driving the sewing machine motor to move the needle bar from a lower needle position to an upper needle position, and then driving the presser motor to move the presser bar from a lowered position to a normal position. The controller is configured to perform a second-stitch operation of, based on a detection result of movement of a sewing workpiece placed on the needle plate, driving the sewing machine motor to move the needle bar in the upper-lower direction in a state where the presser bar is located at the normal position.

The utility model discloses a multi-head high-speed quilting machine which comprises a feeding mechanism, a thread stand, a connecting piece, a front standing table, a main machine, an X-direction moving mechanism, a cloth spreading mechanism and a rear standing table. The feeding mechanism is located at the foremost end of the equipment and connected with the X-direction moving mechanism through a connecting piece. The feeding mechanism is connected with the coil holder; the front standing table is located between the main machine and the wire frame. The X-direction moving mechanism is connected with the host; the cloth spreading mechanism is connected with the X-direction moving mechanism; the rear standing table is positioned behind the main machine; the quilting machine solves the problems of poor thick material sewing capacity and low sewing speed when multiple layers of materials are sewn in the quilting field, greatly improves the production efficiency, and is suitable for large-scale and industrial production requirements.

The present application proposes a split-type flat-bed sewing machine, which specifically relates to the technical field of flat-bed sewing machine manufacturing. The flat-bed sewing machine has a frame, a table, a thread-up mechanism and a thread-down mechanism, and is characterized in that the thread-up mechanism at least has a needle bar assembly, a presser foot lifting assembly and a thread-taking assembly, and the thread-down mechanism at least has a feed dog assembly, a rotary hook assembly and a thread-cutting assembly, and there is no mechanical transmission connection between the thread-up mechanism and the frame, and the thread-down mechanism has no mechanical transmission connected to the table. The present application proposes a split-type flat-bed sewing machine, which has an thread-up mechanism and a thread-down mechanism that each operate independently, and cleverly separates the thread-up mechanism and the thread-down mechanism in terms of mechanical transmission, cancels the traditional upper and lower linkage mechanical transmission structure, and realizes the oil-free operation of the flat-bed sewing machine mechanical transmission mechanism without lubrication, simplifies the mechanical structure, and greatly reduces the manufacturing cost of the sewing machine, and has a high promotion value.

The utility model discloses vertical sewing equipment with a fixed machine head, which comprises a machine base, a machine head frame and a vertical shuttle, a needle bar mechanism is arranged above the machine base, the machine head frame is arranged below the machine base and is opposite to the needle bar mechanism, and the machine head frame comprises a horizontally arranged main shaft and a first driving device connected with the main shaft; the machine head frame is provided with a pivoting seat, the pivoting seat is provided with a vertically-arranged driving shaft in a rotating mode, the driving shaft is connected with a main shaft, the main shaft can drive the driving shaft to rotate, the vertical shuttle and the driving shaft are arranged in parallel and are vertically arranged on the pivoting seat, the vertical shuttle is arranged in a pivoting mode, the driving shaft can drive the vertical shuttle to work, and a thread passing hole is formed in the middle of the vertical shuttle. And the needle rod can rotate between a position extending into the thread passing hole and a position far away from the thread passing hole. The main shaft which is horizontally arranged is matched with the driving shaft which is vertically arranged, so that the vertical shuttle which is vertically arranged is driven to rotate, a plurality of devices are driven by one structure, and the whole device is more compact.