63results about "Thread-break detectors" patented technology

The invention discloses an upper thread sewing starting processing device and a sewing machine, and relates to the technical field of sewing machines, a needle plate assembly of the upper thread sewing starting processing device is provided with a needle plate hole, a thread grabbing plate and a thread clamping plate are movably assembled on the needle plate assembly, a thread trimmer is fixedly assembled on the needle plate assembly, the thread grabbing plate is provided with a thread grabbing hole, and the thread clamping plate is provided with a thread clamping head. The driving assembly is connected with the wire grabbing plate and the wire clamping plate and used for controlling the wire grabbing plate and the wire clamping plate to move. Wherein the moving route of the wire grabbing plate is a first route, and the moving route of the wire clamping plate is a second route; when the thread grabbing plate is located at the head end of the first route, the upper thread penetrates through the needle plate hole and the thread grabbing hole, and when the thread grabbing plate moves to the tail end from the head end of the first route, the upper thread is clamped by the thread clamping head and then cut off by the thread trimmer; when the thread clamping plate is located at the tail end of the second line, the thread clamping head loosens the upper thread. According to the upper thread sewing starting processing device, the upper thread can be clamped, cut off and loosened in one-time movement in the sewing starting stage, the movement process is simplified, and the sewing quality is improved.

The utility model discloses a kind of clothing sewing machines with broken line detection function, comprising: equipment main body and auxiliary mechanism;Equipment main body includes sewing machine, mounting seat and sensor, the sensor is installed at mounting seat bottom, the sensor is installed to the outside of sewing machine by mounting seat;Auxiliary mechanism includes arc bottom plate, the position limiting baffle for limiting sewing thread and the adjusting push plate for adjusting the position of position limiting baffle, the utility model is by being provided with auxiliary mechanism, not only can be in sewing thread sewing process, the position of sewing thread is limited, avoid the position of sewing thread from deviating, while affecting sensor to sewing thread real-time monitoring result, on the other hand, the position of different size sewing thread can be limited when using, the limiting demand of different size sewing thread can be guaranteed by auxiliary mechanism, so as to carry out real-time monitoring to sewing thread.

The utility model discloses a thread locking mechanism, which relates to the technical field of intelligent quilting machines and comprises a thread locking mechanism fixing plate, an air pipe joint is arranged at the top of the thread locking mechanism fixing plate, a thread pressing cap component is arranged at the bottom of an inner cavity of the thread locking mechanism fixing plate, and the bottom of the air pipe joint penetrates through the thread locking mechanism fixing plate to be connected with the thread pressing cap component. The end, away from the wire locking mechanism fixing plate, of the air pipe connector can be connected with equipment such as an air pump, then the wire pressing action is controlled through air pressure, automatic control can be achieved, the wire pressing position is expanded, and therefore the wire pressing stability and efficiency are improved.

The utility model relates to sewing machine accessory field, concretely is a detachable sewing machine wire rack. The wire rack includes the bottom plate of jack plug, and the jack plug is inserted and is connected the vertical rod and is fixed through the second locating plate, fixed peg, the vertical rod is covered and sets up the horizontal plate of liftable, and the horizontal plate bottom installs a plurality of wire guide mechanism. Wire guide mechanism contains the wire hook of bending, its vertical section is inserted into the horizontal plate and is locked through the first knob, and the bending section and the horizontal plate between the reserved threading gap, the wire hook end is equipped with the limiting board, and realizes the automatic reset closed threading mouth through the mounting shaft, torsional spring. The bottom plate surface is equipped with the fixed sleeve, and the locating pin is fixed and is placed the disc and the locating rod. The structure makes the wire rack whole detachable accomodation, and the limiting board prevents the sewing thread from separating from the wire hook when the line breaks down, reduces the repeated threading operation.

Sewing machine (10) with a vertical shuttle (20) and a center shuttle presser (22) arranged on a front side of the vertical shuttle (20), the sewing machine (10) comprising: a presser frame (30) which is movably held between a press position in which the center shuttle presser (22) is pressed and a retract position which is separate from the press position; an optical upper thread detector (60) which is provided on the presser frame (30) and is configured to detect the passage of an upper thread using detection light which passes through passage areas formed in the center shuttle presser (22) and crosses a front side of a bobbin case (24) of the vertical shuttle (20);and a stitch exit detection processor (90) which is configured to determine, based on an amount of light received from the detection light by the upper thread detector (60), whether the passage of the upper thread is present.

The utility model relates to the technical field of sewing equipment, in particular to a high-toughness sewing thread polyester silk threading device which comprises a mounting plate, a thread guide assembly capable of shaking up and down along with intermittent tightness of a sewing thread is arranged on the front side of the top of the mounting plate, and a liquid collecting box is fixedly connected to the rear side of the top of the mounting plate. The top of the liquid collecting box is fixedly connected with a liquid storage box through a supporting rod, the bottom of the liquid storage box is fixedly connected with a wire sleeve, the top in the wire sleeve is communicated with the lower portion in the liquid storage box through a pipeline, a sponge is arranged in the wire sleeve, and a sewing thread penetrates through the center of the sponge for lubrication. By arranging the thread guide sleeve and the sponge structure, the polyester sewing thread can be continuously and uniformly lubricated, so that friction between the sewing thread and the thread guide wheel is reduced, the sewing effect is ensured, in addition, circulation of lubricating liquid is driven by the elasticity change of the sewing thread during working, an extra power source is not needed, and the production cost is reduced. Therefore, the system has good energy-saving and environment-friendly properties.

The utility model relates to the technical field of five-thread overedgers, and discloses a five-thread overedger with an adjustable tailstock, which comprises a mounting panel, a first adjusting component, a second adjusting component, a third adjusting component and a fourth adjusting component, and the first locking assembly is arranged on the outer side of the annular sleeve and used for increasing the dismounting speed of the pay-off assembly and the pay-off assembly. Height adjustment and angle adjustment are conducted on the thread stand through the first adjusting assembly and the second adjusting assembly according to actual conditions, so that a silk thread is driven to be in a tightened state all the time, the silk thread has a more suitable thread inlet angle, sewing work of an overedger body at different heights and different angles is facilitated, and the sewing efficiency is improved. The functionality of the overedger in a special scene and the practicability of the thread stand are expanded; and by arranging the first locking assembly and the second locking assembly, disassembly and assembly of the pay-off assembly, the wire outlet assembly and the wire guide assembly are facilitated, and quick disassembly and quick assembly between the wire frame assemblies are facilitated.

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.

The utility model relates to the technical field of thread stands, and discloses a sewing machine thread stand which comprises a fixed disc and a thread rod movably installed in the middle of the top of the fixed disc, a thread guide frame is arranged on the right side of the thread rod close to the top, and a placing frame is arranged below the bottom of the thread guide frame. A plurality of trays are fixedly installed at the top of the placing frame at equal intervals, a cavity is formed in the position, close to the top, of the wire rod, through mutual cooperation of the threaded rod, the threaded sleeve, the guide plate, the guide rod, the worm gear, the worm and the hand wheel, the height of the wire leading frame and the height of the placing frame can be flexibly adjusted according to actual needs, and the using effect is better; the working efficiency of the sewing machine is effectively improved, through mutual cooperation of the positioning groove, the disc and the positioning bolt, positioning of the thread rod after angle adjustment can be achieved, it is avoided that the thread rod rotates at will, use of the sewing machine is affected, and the working efficiency of sewing is further improved.

The invention discloses a single-needle-driven double-layer lap joint splicing device and a sewing method thereof, and belongs to the technical field of textile. The transmission module, the thread picking module and the thread guiding and hooking module are synchronously controlled through the driving module, so that the modules are highly coordinated, and the problems of mesh hooking, stitch disorder and the like caused by synchronous errors of a traditional multi-power source are solved; the staggered distribution design of the thread guiding curved needle and the fixed thread hooking needle is matched with the protruding structure of the needle point of the thread guiding curved needle to assist knocking-over, hooking and pulling damage to regular meshes of the metal mesh can be reduced, and the splicing strength can be guaranteed through the accurate coil sleeving action; and through combination of passive regulation and active regulation, the stability of the splicing quality is remarkably improved. The single-needle-driven double-layer lap joint splicing device is simple in structure, excellent in movement synergy and controllable in tension, and splicing precision, structural integrity and production efficiency are improved.

The invention provides an upper thread anti-off sewing method of a sewing machine and the sewing machine. A thread passing notch and a first clamping part are arranged on a first thread trimmer of the sewing machine, a clamping assembly is further arranged, and the clamping assembly is provided with a second clamping part; comprising the following steps that before a first needle is sewed, a first thread trimmer stops at a working position A, and a thread passing notch is located under a machine needle; starting to sew a first needle, enabling a machine needle to move downwards, and driving an upper thread to pass through a thread passing notch and a sewing material; then the rotating shuttle hooks the upper thread, the machine needle ascends to the position above the first thread trimmer, and the upper thread is located in the thread passing notch; the first thread trimmer moves towards the clamping assembly to a working position B, the thread passing notch drives the upper thread in the thread passing notch to reach a second clamping part of the clamping assembly, the first clamping part and the second clamping part clamp the upper thread between the first clamping part and the second clamping part, and the first thread trimmer stops at the working position B; the machine needle completes follow-up sewing starting actions of a plurality of needles; when the first thread trimmer moves to the working position C, the first clamping part and the second clamping part loosen the upper thread.

This application relates to a thread breakage detection device, a sewing machine, and a thread breakage control method for sewing equipment. The thread breakage detection device includes: a detection component for detecting the thread breakage state and generating a breakage signal accordingly; a first drive component including a sewing machine spindle and a spindle motor connected in a transmission relationship, the spindle motor stopping upon receiving the breakage signal; and a second drive component including a fabric feeding mechanism driven by the sewing machine spindle and a needle pitch adjustment motor for changing the transmission relationship between the sewing machine spindle and the fabric feeding mechanism, the needle pitch adjustment motor changing the needle pitch accordingly based on the breakage signal. This application, by having the needle pitch adjustment motor change the needle pitch according to the breakage signal, ensures that the needle only penetrates the existing needle eye on the fabric, avoiding fabric damage and waste. It has advantages such as good adaptability, fast response, simple structure, and high production efficiency.

The invention relates to a guide structure of a double-needle machine applied to a garment fabric, relates to the technical field of garment processing equipment, and aims to reduce the problem of skew fabric threading. A guide structure of a double-needle machine applied to garment materials comprises a machine base used for bearing a machine body and a mounting base arranged on the machine base, and a fixing assembly used for fixing the relative position of the mounting base and the machine base is arranged on the mounting base; a rotating rod is rotationally arranged on the mounting seat, and a guide rod for guiding cloth routing is arranged at the end part, far away from the mounting seat, of the rotating rod; and an adjusting assembly for adjusting the steering angle of the rotating rod is arranged on the mounting seat. The method has the effect of improving the accuracy of the garment fabric routing processing position.

The utility model discloses a yarn guide frame of a bar tacking machine, which relates to the technical field of bar tacking machines and comprises a bottom plate, a powerful magnetic plate is inlaid at the bottom of the bottom plate, a plurality of screws are arranged on the upper side of the bottom plate at equal intervals, a bobbin placing disc is rotatably sleeved at the bottom of the bottom plate, and limiting conical blocks are sleeved on the screws in a threaded manner; the lower end of the vertical rod plate is connected with the right end of the upper side of the bottom plate, the vertical rod plate is slidably sleeved with a plate sleeve, a locking knob is embedded in the right side of the plate sleeve in a threaded mode, a wire guide plate is fixed to the left side of the plate sleeve, and mounting holes are formed in the positions, corresponding to the positions over the screws, of the wire guide plate; and a pair of wire guide wheels are movably nested in the mounting holes. According to the utility model, the installation is simple and convenient, the limiting conical block is arranged on the screw rod, and after the wire cylinder is sleeved on the screw rod, the limiting conical block is sleeved on the screw rod in a threaded manner, so that the wire cylinder is limited, and the wire cylinder is prevented from being separated from the screw rod under the pulling of a wire.

The invention relates to a thread stand structure on a sewing machine, the thread stand structure comprises a support column and a thread passing cross rod group, the thread passing cross rod group comprises a thread guide cross rod and a bobbin cross rod, the thread guide cross rod is arranged above the bobbin cross rod, a thread column detachably connected with the bobbin cross rod is arranged on the bobbin cross rod, and the thread guide cross rod is arranged on the support column. Mounting holes and open grooves communicated with the mounting holes are formed in the wire cross rod and the bobbin cross rod, the supporting columns are arranged in the mounting holes in a penetrating mode, locking assemblies are arranged on the wire cross rod and the bobbin cross rod, and the locking assemblies can adjust the clamping force of the cross rods on the two sides of the open grooves so that the wire passing cross rod sets can tightly hold the supporting columns or loosen the supporting columns. Therefore, the wire passing cross rod group and the supporting column can be assembled or disassembled. By the adoption of the technical scheme, according to the thread stand structure on the sewing machine, the thread passing transverse rod set and the supporting columns are convenient and fast to disassemble and assemble, meanwhile, the supporting columns are arranged in a segmented mode, storage and transportation are convenient, and space is saved.

The application discloses a kind of servo type swing yarn leading and overlock device and method, device includes servo type yarn leading platform, swing yarn leading mechanism, tension compensation yarn supply mechanism and continuous overlock mechanism, the swing yarn leading mechanism and tension compensation yarn supply mechanism are installed on the servo type yarn leading platform, follow the current opening movement of servo type yarn leading platform with fabric;Continuous overlock mechanism and servo type yarn leading platform are respectively opposite to be arranged in the both sides of fabric, follow the yarn leading position along the width direction movement of fabric.The yarn leading platform can follow the current opening movement of fabric, the swing yarn leading mechanism is introduced from the long and narrow optimal opening position, and continuous overlock is completed via the continuous overlock mechanism, the whole process is yarned by the tension compensation yarn supply mechanism and controls yarn tension constant.The application solves the forming problem of the yarn leading, overlock of the large width, large thickness, high density of fabric, improves the production efficiency of fabric and the consistency of forming.

The utility model provides a sewing machine right thread hook, a thread passing mechanism and a sewing machine, the right thread hook comprises a fixed part and a thread path extension part, and the thread path extension part is arranged on the fixed part; the upper thread is arranged in the thread channel extension part in a penetrating manner, and the position of the upper thread relative to the fixed part is variable, so that the upper thread is in a vertical state. According to the right thread hook of the sewing machine, the thread passing mechanism and the sewing machine, the thread containing range of the thread passing portion on the thread channel extension portion comprises the movement range of the thread clamping face of the large thread clamping device and the movement range of the thread passing hole of the take-up lever, when sewing work is carried out, an upper thread can swing on the thread passing portion, the upper thread is made to be located at the low-tension position all the time, the variation amplitude of tension is reduced, and the sewing efficiency is improved. The stress condition of the large thread trapper is improved, the upper thread stability is improved, and therefore the problems of thread throwing, thread breaking and the like are reduced.

The invention provides mop cloth spinning equipment, and belongs to the technical field of spinning equipment.The mop cloth spinning equipment comprises a rack, a thread feeding mechanism, a cloth feeding mechanism, a needle inserting mechanism, a needle pulling mechanism, a needle hooking mechanism, a discharging mechanism and a driving mechanism, a cloth pressing plate is arranged on the rack, a thread dividing through opening is formed in the cloth pressing plate, and the needle inserting mechanism comprises inserting needles moving up and down in a reciprocating mode; the pulling needle mechanism comprises a pulling needle which reciprocates left and right and is used for being matched with an inserting needle to enable the weaving thread to form a cloth wool top on the cloth, and the bearded needle mechanism comprises a bearded needle which reciprocates front and back and reciprocates left and right and is used for being matched with the inserting needle to enable the weaving thread penetrating through the cloth to form a sewing knot, so that the cloth wool top is fixed to the cloth. The driving mechanism is used for driving all the mechanisms to operate. According to the equipment, automatic sewing of the mop cloth can be achieved, and compared with manual sewing, the sewing efficiency is greatly improved, and meanwhile the sewing quality is guaranteed.

The present invention provides a surface thread holding mechanism and a sewing device, which take into account both preventing the surface thread end from being caught in the stitches during sewing and making the length of the surface thread end shorter than before. The surface thread holding mechanism (80) includes a fixed cutter (97), a first holding member (81), a second holding member (82), and a holding movable portion. The fixed cutter is fixed to the lower side of a needle plate (11), and the needle plate is formed with a needle hole (12) for the needle to pass through. The first holding member is provided on the lower surface of the needle plate. The second holding member is supported by a support portion (84) perpendicular to the needle plate so as to be rotatable, and cooperates with the first holding member to hold the surface thread end of the surface thread. The holding movable portion has a motor, and utilizes the power of the motor to move the second holding member in a horizontal direction. The holding movable portion can move the second holding member to a standby position (Q1), a holding position (Q2), and a surface thread cutting position (Q3). The surface thread cutting position is the position when the surface thread end is cut by the fixed cutter.

The utility model discloses a silk thread sewing machine head which comprises an adapter, a needle bar, a needle bar driving mechanism, a guide ring and a connecting rod swing assembly, the needle bar is arranged on the adapter in a penetrating mode, a machine needle is arranged at the bottom of the needle bar, and the needle bar driving mechanism is used for controlling the needle bar to move up and down. The guide ring is arranged on the adapter seat in a sleeving mode and can slide up and down, the connecting rod swing assembly is connected with the guide ring, a cycloid presser foot is arranged on the connecting rod swing assembly, and the connecting rod swing assembly can drive the cycloid presser foot to swing left and right on the machine needle when moving. According to the thread sewing machine head, the guide ring and the connecting rod swing assembly are ingeniously applied, the guide ring can achieve power transmission of swing driving and can also achieve the functions of turning, reversing and the like during thread swinging, the thread sewing machine head can achieve the rapid sewing effect that thread swinging and sewing are conducted at the same time, sewn threads are more uniform and firmer, and the sewing efficiency is improved. Cycloid can be performed according to a pattern set by the system.

This invention relates to the field of sewing machine technology, specifically to a sewing machine thread breakage detection, control, and emergency response system and its computer equipment. The system includes a thread breakage detection module comprising a photoelectric sensor, a tension sensor, a Hall effect speed sensor, and a visual recognition unit. It is used to collect and comprehensively identify the presence, tension changes, motion continuity, and morphology of the sewing thread in real time. This invention employs a multi-source detection architecture that deeply integrates photoelectric sensors, tension sensors, Hall effect speed sensors, and a visual recognition unit. Through contour detection algorithms, deep learning semantic segmentation technology, and a graded response mechanism for thread breakage and micro-damage, coupled with a multi-interface data storage and networking module, it solves problems such as high false alarm rates and delayed response in sewing machine thread breakage detection through multi-dimensional signal cross-validation, accurate identification of latent faults, differentiated emergency response, and full lifecycle data traceability. This improves the accuracy and reliability of thread breakage and fault detection in sewing machines.

A thread guiding mechanism of a sewing machine belongs to the technical field of thread guiding of sewing machines and comprises a seat body, a rotating shaft is rotatably arranged in the middle of the seat body in the vertical direction, the top end of the rotating shaft penetrates through the seat body upwards and is connected with a plurality of placing assemblies, and the rotating shaft rotates and is locked intermittently in the circumferential direction through a driving mechanism. According to the utility model, various coil specifications or types can be adapted for standby application at the same time, and the required vertical rods can be quickly switched to be placed at the use positions, so that the device can effectively play a role in the batch costume production process of frequently changing coils, the requirement of flexible switching of the coils can be fully met, and the production efficiency is improved. When the rotating seat finishes one rotation period, the mounting plate and the vertical rod which are positioned at the top end can be accurately changed into one group, the cooperative rotation of the group of parts, namely the mounting plate and the vertical rod, can be stably realized, and in addition, a guide plate and a guide hole are also arranged, so that a lead can be effectively and accurately guided to a specific processing position of the sewing machine.

To provide a sewing machine and a bobbin thread determination method capable of detecting bobbin thread breakage and bobbin thread entanglement failure with better accuracy than before, irrespective of sewing conditions.SOLUTION: A sewing machine includes a needle bar, a needle bar vertical movement mechanism, a shuttle, a shuttle mechanism, a tensile force detector, a rotation detector, and a bobbin thread determination part. The needle bar mounts a sewing needle in which a needle thread is inserted. The needle bar vertical movement mechanism moves the needle bar vertically. The shuttle rotatably stores a bobbin which is provided below the needle bar, and around which a bobbin thread is wound. The shuttle mechanism rotates the shuttle synchronously with the vertical movement of the needle bar, and forms seams by capturing the annular needle thread which is inserted in the sewing needle and entangling it with the bobbin thread. The tensile force detector detects the tensile force of the needle thread or the bobbin thread. The rotation detector detects presence / absence of the rotation of the bobbin. The bobbin thread determination part determines presence / absence of the bobbin thread with respect to the seams, based on whether or not the tensile force detected by the tensile force detector is larger than a threshold value and the detection result of the rotation detector (S3-S7, S11-S19).SELECTED DRAWING: Figure 9

The anti-winding device for the sewing machine head comprises a machine head body, an external plate is fixedly connected to the position, close to the center, of the front side of the machine head body, a fixing rod is fixedly connected to the front side of the external plate, a cylindrical roller is arranged on the outer side of the fixing rod in a sleeving and sliding mode, and the cylindrical roller is provided with a thread. A plurality of trapezoidal plates are arranged on the outer side of the cylindrical roller, and wire arranging grooves are formed in the outer sides of the trapezoidal plates. According to the anti-winding device for the sewing machine head, the external plate and the cylindrical roller fixedly connected with the external plate are arranged on the front side of the machine head body, and the trapezoidal plates and the wire arranging grooves are arranged on the outer side of the cylindrical roller, so that the movement path of a wire is effectively guided, and the wire can smoothly penetrate through the wire arranging grooves; according to the thread winding prevention device, the phenomena of drifting and knotting of threads in the sewing process are avoided, the thread management efficiency and stability are remarkably improved, the cylindrical roller and the trapezoidal plate are fixedly connected through the connecting strip, and a dynamically-adjusted thread winding prevention structure is formed.

The application provides a single-edge curved needle type three-dimensional composite material preform stitching head and a stitching method thereof, and belongs to the technical field of single-edge stitching. The stitching head comprises a rack, a lead mechanism, a hook mechanism, a synchronous transmission mechanism, a guide mechanism, a presser foot plate and a driving mechanism. The lead mechanism and the hook mechanism are both mounted on the inner side of the rack and are driven by a servo motor and a speed reducer to realize the reciprocating rotary motion of the lead needle and the hook needle on the fixed plane respectively. The synchronous transmission mechanism ensures the synchronous rotation of the cranks in the lead mechanism and the hook mechanism, and synchronous control can be realized by one servo motor. The guide mechanism guides the direction of the stitching line to ensure the stitching line tension and improve the efficiency of stitch formation. It can be seen that the application has compact structure and wide application range. The application can not only realize the stitching of the preform through the thickness, but also realize non-penetrating stitching and complete the laying and splicing to improve the production efficiency and the consistency of the product.

The invention discloses sewing equipment and a thread pulling device, method and product thereof, and relates to the technical field of sewing equipment. The wire pulling device comprises a support; the telescopic assembly is arranged on the bracket; the hooking assembly is arranged at the output end of the telescopic assembly; the hooking assembly has a hooking state and a releasing state; the clamping assembly is arranged at the output end of the telescopic assembly; the clamping assembly has a clamping state and a releasing state. The weft in the pay-off device can penetrate through the corresponding warp rings through the thread pulling device. In other words, each weft thread can only penetrate through one warp thread ring through the thread pulling device, all sewing structures on the sewn rock wool board are independent of one another, and even if a certain weft thread is broken, other sewing structures cannot be affected. After the wire drawing device is adopted to sew the rock wool board, any weft is broken, and the influence on the tensile strength of the rock wool board is less than 10%.

Provided are a thread tension adaptive method, a thread tension adaptive device and a coverstitch machine. The thread tension adaptive method comprises: when a needle starts to move from top to bottom, sewing threads slide on thread passage springs (2); when the needle continues to move downwards to pierce a fabric, the sewing threads disengage from the thread passage springs; during the process in which the needle continues to move downwards to the lowest point, the sewing threads slide on the thread passage springs; when the needle starts to move from bottom to top, the sewing threads slide on the thread passage springs; when the needle continues to move upwards, the sewing threads disengage from the thread passage springs; and when the needle continues to move upwards to return above the fabric, the sewing threads slide on the thread passage springs, thereby completing one stitching action. Compared with conventional thread take-up structures that pull sewing threads by means of needle bars, the present solution can accurately adjust the thread consumption required by the needle, thereby realizing adaptive thread tension adjustment.

This invention relates to a device, method, thread, and dedicated sewing machine for preparing metal sewing thread. A pure metal sewing thread, formed by twisting and annealing seven ultra-fine stainless steel monofilaments, is designed. This sewing thread is used in a dedicated sewing machine, enabling machine sewing. The metal sewing thread preparation device includes a complete sewing thread production system, effectively reducing thread breakage during production. The annealing process also improves the thread's flexibility. A proprietary metal sewing thread guide device is designed for the sewing machine, allowing it to coordinate with the up-and-down movement of the sewing machine, achieving automated sewing of the metal thread. This design not only optimizes the flexibility and strength of the metal sewing thread but also enables automated sewing of pure metal sewing thread on a sewing machine.

The utility model discloses a thread stabilizing structure and a sewing machine, and relates to the technical field of sewing machines. The thread stabilizing plate is arranged on the side face of the sewing machine body, and a thread guiding plate set is arranged on the side face of the thread stabilizing plate and used for guiding sewing threads; the thread stabilizing strip is arranged on the side face of the sewing machine body and arranged on one side of the thread stabilizing plate, and the thread stabilizing strip is used for spirally winding a sewing thread. According to the thread stabilizing structure, the technical problem that when an existing thread stabilizing device of the sewing machine is used, a sewing thread shakes greatly due to suspension in the conveying process, and consequently the thread breaking probability is increased is solved, the advancing track of the sewing thread is preliminarily limited through the thread stabilizing plate, shaking of the sewing thread is eliminated, and meanwhile the thread stabilizing strip is arranged below the thread stabilizing plate; the sewing thread is spirally wound on the outer side wall of the thread stabilizing strip in the advancing process and is stabilized on the surface of the thread stabilizing strip, shaking of the sewing thread is further eliminated, the probability of thread breaking is reduced, and the sewing quality of the sewing machine is improved.

The invention relates to a coil holder structure which comprises a main rod and a bobbin cross rod, the bobbin cross rod is installed on the main rod through an installation base, a plurality of coil columns are arranged on the bobbin cross rod in the length direction of the bobbin cross rod, the coil columns are detachably arranged on the bobbin cross rod, and the coil columns are arranged obliquely upwards relative to the main rod. The wire column and the mounting base are arranged on the two sides of the bobbin cross rod respectively, the mounting base and the bobbin cross rod are arranged in a split mode, the mounting base is detachably mounted on the main rod, a connecting piece is arranged on the side, facing the bobbin cross rod, of the mounting base, and an inserting groove is correspondingly formed in the bobbin cross rod. And the connecting piece is inserted into the inserting groove so as to realize the connection between the mounting seat and the bobbin cross rod. By the adoption of the technical scheme, according to the coil holder structure, the installation base and the bobbin cross rod are arranged in a split mode and are installed and fixed after being subjected to injection molding, machining is convenient, meanwhile, the installation base and the bobbin cross rod are convenient and fast to install, and firmness between the installation base and the bobbin cross rod is good.