288results about "Needle bars" patented technology

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.

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.

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 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.

The present invention relates to a double-needle two-color pattern machine, including a workbench, a fixed frame, which is arranged above the workbench and fixed relatively to the workbench; a machine base, which is arranged on the fixed frame, and the first and second machine needles arranged vertically are installed on the machine base, and the machine base is arranged to rotate around its own axis so that the first machine needle or the second machine needle corresponds to the workstation; a clamping mechanism, which has two groups of clamping components respectively used to clamp or release the surface thread on the first machine needle and the surface thread on the second machine needle; a driving component, the power output end of which is connected to the clamping mechanism drive, so that the two groups of clamping components correspond to the workstation one by one; a hooking plate, which corresponds to the workstation and is arranged to be able to transport the surface thread at the workstation to the corresponding clamping component. The entire operation process is more convenient, fast, time-saving and labor-saving, and reduces costs.

The present application provides a sewing machine, which includes a frame, a feeding mechanism, a bobbin case, a first driving device, a sewing needle and a second driving device. The feeding mechanism is installed on the frame and is used for clamping the object to be sewn and moving it. The bobbin case is arranged below the feeding mechanism. The first driving device is connected to the bobbin case and can drive the bobbin case to perform a rotational motion. The sewing needle is arranged above the feeding mechanism. The second driving device is connected to the sewing needle and can drive the sewing needle to perform a lifting motion and also a swinging motion. During the process that the sewing needle pierces through the object to be sewn and then leaves the object to be sewn, the feeding mechanism clamps the object to be sewn and moves it at a uniform speed, and at the same time, the sewing needle swings along the feeding direction of the feeding mechanism, so that the sewing needle and the object to be sewn located on the feeding mechanism can move synchronously in the same direction. The present application mainly improves the sewing method and sewing quality of the existing sewing machine.

The utility model discloses a needle plate seat of textile equipment, which comprises a needle plate base and a needle seat, the needle seat is arranged at the top of the needle plate base, a placing groove is arranged at the top end of the needle plate base, a plurality of clamping strips are arranged at the bottom of the needle seat, a plurality of clamping holes are arranged on the inner surface of the placing groove, and convex plates are arranged on two sides of the needle plate base. A limiting strip is arranged on one side of each protruding plate, a trapezoidal plate is arranged on one side of each protruding plate, the clamping strips, the clamping holes, the protruding plates, the trapezoidal plates, a threaded rod and a powerful suction cup are arranged, the bottom of the needle base is embedded into the containing groove, one ends of the multiple clamping strips are sequentially embedded into the corresponding clamping holes, and the clamping strips and the clamping holes are connected in a clamped mode; and the height of the powerful suction cup is gradually reduced, the bottom surface of the powerful suction cup is gradually close to the placing surface, and after the powerful suction cup and the placing surface are adsorbed, the firmness of the bottom of the needle plate base is enhanced, and subsequent replacement of needles of different models is facilitated.

This application relates to a needle guard for a sewing machine shuttle, comprising a support portion and a needle guard portion mounted on the upper side of the support portion; the top of the needle guard portion has a needle guard surface for abutting the needle, and the needle guard portion has a guide surface connected to and inclinedly arranged along the lower edge of the needle guard surface. This application has the effect of reducing the risk of friction and contact between the needle and the tip of the shuttle.

A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needle, held by a needle bar and moving back and forth while holding an upper thread; a shuttle, configured to hold a bobbin around which a lower thread is wound and which is housed in a bobbin case, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle; a feeding mechanism, feeding the to-be-sewn article from the sewing position to a first direction; a needle drive portion, provided separately from a belt drive portion to synchronously move the sewing needle and the presser foot component in the first direction; and a control portion, which controls so that the needle drive portion and the belt drive portion operate independently.

The present application relates to the field of garment processing. Disclosed is a zipper tape sewing apparatus. The zipper tape sewing apparatus comprises a frame, a sewing head, a fabric conveying device and a zipper tooth pulling device, wherein the frame is provided with a worktable surface, and the sewing head comprises a sewing needle; the fabric conveying device comprises a clamping plate for carrying and tensioning fabric, and the clamping plate is movable in a first direction and is configured to convey the fabric to the worktable surface; the zipper tooth pulling device is configured to convey zipper teeth to the worktable surface in the first direction; and the fabric conveying device and the zipper tooth pulling device are capable of synchronous conveying.

The robot sewing assembly comprises a sewing head body, an upper arm, a motor and a lower arm. The upper arm is connectable to the sewing head body and includes a sewing needle oriented along a first axis. The lower arm is rotatably connected to the sewing head body so as to be rotatable about a second axis transversely defined by the motor relative to the first axis. The lower arm comprises a needle plate, a butterfly curved needle, a first transmission system and a second transmission system. The first transmission system may extend through the lower arm and is configured to maintain a position of the needle plate during rotation of the lower arm. The second transmission system may extend through the lower arm and is configured to drive the butterfly curved needle during rotation of the lower arm.

The technical scheme belongs to the technical field of template machines, and particularly relates to a needle rod device of a template machine, which comprises a rack, a needle rod, a needle head, a needle rod, a needle rod and a needle rod, the displacement mechanism is arranged on the machine frame, the displacement mechanism comprises a displacement driving part and a needle rod connector arranged at the output end of the displacement driving part, the front end of the needle rod connector is arranged outside the machine needle rod in a sleeving mode, and the displacement driving part drives the machine needle rod to move in a reciprocating mode in the needle inserting direction through the needle rod connector; the rotating mechanism is arranged on the machine frame, the rotating mechanism comprises a rotating driving part, the machine needle rod is arranged at the output end of the rotating driving part, and the rotating driving part is used for driving the machine needle rod to rotate with the axis of the machine needle rod as the center.