61results about "Spool-pin assemblies" patented technology

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.

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 utility model relates to a thread stand structure on a sewing machine, which comprises a supporting column and a thread passing cross rod group arranged on the supporting column, the thread passing cross rod group comprises a bobbin cross rod and a thread guide cross rod, and the thread guide cross rod is provided with a first thread guide hole. Each of the bobbin cross rod and the wire cross rod comprises at least two first rod bodies, at least two second rod bodies and at least two third rod bodies, the first rod bodies and the second rod bodies are arranged in parallel, the third rod bodies are connected with the first rod bodies and the second rod bodies, mounting holes and open grooves are formed in the third rod bodies, the supporting columns are inserted into the mounting holes, and locking assemblies are arranged on the rod bodies. The locking assembly can adjust the clamping force of the rod bodies on the two sides of the open groove so that the transverse rod can tightly hold the supporting column or loosen the supporting column. 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 column are convenient and fast to disassemble and assemble, the bobbin transverse rods and the thread guiding transverse rods can be provided with a plurality of parallel rod bodies, and therefore the number of bobbins is increased, and the height of the supporting column does not need to be increased.

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 relates to the technical field of textile processing, and discloses a yarn carding device for hemming sewing processing, which comprises a workbench, a base is arranged on one side of the upper surface of the workbench, a first thread stand is arranged on the upper surface of the base, and second fixing rings are symmetrically arranged in the middle of the outer wall of the first thread stand. A sliding groove is formed in the second fixing ring, first rotating shafts are symmetrically and slidably connected into the sliding groove of the second fixing ring, second pawls are arranged on the outer walls of the first rotating shafts, second ratchet wheels are arranged at one ends of the second pawls, and the middle portions of the second ratchet wheels are fixedly arranged on the outer wall of the first coil holder. Flexible adjustment of related structures of the coil holder is achieved through cooperation of the second pawl and the second ratchet wheel and the coil holder. The angle of the yarn wheel frame can be changed according to actual requirements, so that the position of a bobbin placed on the tray can be correspondingly adjusted, and the phenomena of winding and knotting of yarns in the conveying process are effectively reduced. The problem that the coil holder cannot be adjusted is solved.

The utility model provides a lockstitch sewing machine for clothing processing, and belongs to the technical field of machinery. The problem that in the prior art, applicability is poor is solved. The lockstitch sewing machine for clothing processing comprises a base, a workbench, a threaded rod, a connecting frame, a thread passing frame and a positioning assembly, the workbench and the base vertically face each other, a threaded barrel is fixedly connected to the middle of the base, one end of the threaded rod is in threaded connection with the interior of the threaded barrel, and the other end of the threaded rod is rotationally connected to the lower portion of the workbench; a mounting cavity is formed in the workbench, a motor is fixedly connected into the mounting cavity, the output end of the motor is connected with a threaded rod, four guiding pieces are fixedly connected between the base and the workbench and arranged at the four corners of the base and the four corners of the workbench correspondingly, and a containing area is arranged on the left side of the workbench. The right side of the workbench is an operation area. The lockstitch sewing machine for clothing processing is high in applicability.

The utility model belongs to the technical field of industrial sewing machines, and particularly relates to an industrial sewing machine. The sewing machine body is arranged on the workbench and located on the other side of the workbench; the mounting frame is arranged on the workbench, and a limiting cylinder used for winding a sewing thread is arranged in the middle of the mounting frame; the placing structure is arranged at the top of the mounting frame and is used for sleeving and fixing the bobbin; wherein the placing structure comprises a sleeving assembly and a fastening assembly, and the fastening assembly is arranged to be capable of gradually expanding the sleeving assembly when the fastening assembly is gradually screwed. The placement structure has the beneficial effects that the sleeving assembly and the fastening assembly are combined, and the fastening assembly is designed to be capable of pushing the sleeving assembly to be gradually expanded in the gradual screwing process, so that the sleeving assembly is tightly attached to the inner wall of the bobbin. By means of the design, the installation process is simplified, stable installation of the bobbin can be achieved by directly screwing the fastening assembly, the installation efficiency is greatly improved, and operation steps are reduced.

Thread stand for attachment to a sewing machine, characterized by - an adapter for mounting on the device for attaching a bobbin, - the adapter is designed either as a separate component or as an integral part of the yarn stand, - vertical storage of a yarn reel, - a first thread guide for vertically pulling the sewing thread upwards, - as well as additional thread guides that guide the thread back to spool height, with the lowest thread guide being positioned lower than conventional thread stands in order to compensate for the height difference caused by the alternative mounting point.

The utility model relates to the technical field of sewing machines, in particular to a single-needle sewing machine feeding direction correcting device which comprises a garment processing table, a machine base is fixedly installed on the garment processing table, a single-needle sewing machine is installed on the machine base, and a feeding direction correcting mechanism is arranged on the outer side of the single-needle sewing machine. The feeding direction correcting mechanism comprises a mounting bottom plate, a bending side plate is mounted on the side edge of the mounting bottom plate in a threaded connection mode, a first guide wheel, a second guide wheel and a third guide wheel are sequentially mounted on the mounting bottom plate and the bending side plate, a mounting groove is formed in the upper side of the mounting bottom plate, a fixing column is fixedly mounted in the center of the inner side of the mounting groove, and a sliding groove is formed in the upper side of the fixing column. By means of the feeding direction correcting mechanism, when the single-needle sewing machine stops working, the stranding cylinder can immediately stop autorotation caused by inertia, looseness in a thread feeding line is prevented, the defect of thread winding is further avoided, and practicability of the single-needle sewing machine is improved.

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 invention relates to the technical field of shoe and clothing processing, in particular to a thread stand for shoe and clothing sewing equipment, which comprises a mounting frame, a bottom rod and a top rod, the inner end of the bottom rod and the inner end of the top rod are both fixed on the side wall of the mounting frame, the bottom rod and the top rod are both arranged along the horizontal direction and are parallel to each other, and a tray and a mounting cylinder are arranged on the bottom rod. The mounting cylinder penetrates through the bottom of the tray and can be matched with an inner hole of the bobbin, an ejection assembly which can penetrate through the cylinder wall of the mounting cylinder and abut against the inner wall of the bobbin is arranged in the mounting cylinder, a pulley for a sewing thread on the bobbin to bypass is rotationally arranged on the ejector rod, and a transmission assembly is arranged between the pulley and the ejection assembly. The ejection assembly can be driven by the transmission assembly to move towards the inner wall of the bobbin until the ejection assembly abuts against the inner wall of the bobbin. During sewing, along with continuous reduction of sewing threads, the pulley drives the ejection assembly to slowly move out of the mounting cylinder through the transmission assembly to abut against the inner wall of the bobbin, the bobbin is prevented from shaking, and the sewing routing stability is improved.

The utility model relates to the field of four-thread overlock machines, and discloses a cloth overlock width-adjustable four-thread overlock machine which comprises a base, the top of the base is fixedly connected with a four-thread overlock machine body, a sewing needle is arranged on the four-thread overlock machine body, a guide plate is movably arranged on the top of the base, and the guide plate is fixedly connected with the four-thread overlock machine body. A precise adjusting mechanism is arranged between the guide plate and the base, and a thread stand mechanism used for placing sewing threads is arranged at the top of the four-thread overlock machine body. The sewing machine has the following advantages and effects that the width of the overlock can be effectively and accurately adjusted through the accurate adjusting mechanism, diversified production requirements of garment factories can be met, the quality and attractiveness of garments are ensured, four sewing thread rolls can be conveniently limited and placed through the thread stand mechanism, it is ensured that sewing threads are smoothly provided, and the production efficiency is improved. The smoothness of four-thread overlock sewing is improved, and meanwhile, the sewing thread coil is convenient to disassemble, assemble and replace.

The utility model relates to the technical field of overedgers, in particular to a numerical control automatic thread trimming overedger which comprises an overedger body, a control panel, a sewing device, a shell, an electric push rod, a push block and a positioning plate, the control panel is arranged on one side of the upper portion of the overedger body, and the sewing device is installed on the bottom edge of the other side of the upper portion of the overedger body. A shell is arranged on the side wall face of the middle of the overedger body, an electric push rod is installed on one side of the upper portion in the overedger body, a push block is arranged on a driver of the electric push rod, and a positioning plate is arranged on one side of the push block. The push block is driven by the electric push rod to move downwards, the positioning plate is pressed on cloth, it is ensured that the position of the cloth is fixed, automatic positioning is achieved, and manual intervention is reduced; along with rotation of the rotating shaft, the protruding block slides and rotates along the guide rail of the guide rail plate, finally the blade is driven to cut a suture, automatic suture trimming is achieved, and complexity and inaccuracy of manual suture trimming are avoided.

The present invention discloses an auxiliary device for replacing a sewing machine spool for making school uniforms, which relates to the technical field of spool replacement. The auxiliary device for replacing a sewing machine spool includes a bottom plate. The upper surface of the bottom plate is fixedly installed with a housing. The outer surface of the housing is fixedly installed with a channel pipe. A plurality of spools are arranged inside the housing. The outer surface of the bottom plate is provided with a replacement mechanism for assisting in replacing the sewing machine spool. The inside of the housing is provided with an auxiliary mechanism for assisting in finding the thread end of the replaced spool. The replacement mechanism includes a control component for assisting in replacing the sewing machine spool and a moving component for controlling the control component to replace the spool. By the combined use of the moving component and the control component, timely replacement of the spool is achieved. When the thread on the spool is used up, timely replacement of a new spool can immediately resume the operation of the sewing machine, avoid production interruption, thereby improving production efficiency. It can also ensure sufficient and stable supply of the thread and maintain the coherence of the production process.

The utility model discloses a ton bag strap folding and sewing integrated device, and relates to the technical field of ton bag sewing, the folding and sewing integrated device comprises a support table, the bottom of the support table is provided with support legs, the front end and the rear end of one side of the upper surface of each support leg are provided with first moving seats, and the first moving seats are provided with second moving seats; a sewing table is arranged on one side of the first moving seat, second moving seats are arranged at the front end and the rear end of the upper surface of the sewing table, second moving grooves are formed in the front end faces of the second moving seats, moving frames are installed in the second moving grooves, and rotating plates are installed in the moving frames; according to the scheme, the folding and sewing integrated device solves the problems that in the prior art, most of folding and sewing integrated devices directly conduct overall folding and cannot conduct corner folding, manual folding is needed, and the sewing efficiency of the folding and sewing integrated device is affected.

The utility model provides a sewing machine casing, which comprises a main body and a support, the main body is fixed on the support, a placing groove is arranged on the support, a placing seat is rotatably connected in the placing groove, a support rod is fixedly connected on the placing seat, the placing seat and the support rod are coaxially arranged, and the main body is fixed on the support. A mounting hole is formed in the supporting rod in the axial direction of the supporting rod, a pressing rod is slidably connected into the mounting hole, sliding holes communicated with the mounting hole are formed in the side wall of the supporting rod, the multiple sliding holes are evenly distributed along the axis of the supporting rod, abutting rods are slidably connected into the sliding holes, rubber pads are fixedly connected to the abutting rods, and the rubber pads are fixedly connected to the supporting rod. The rubber pad abuts against the inner wall of the bobbin, the pressing rod moves in the direction away from the support, the abutting rod is made to move in the direction close to the bobbin through the elastic structure, and the purpose of replacing the bobbin conveniently is achieved.

The utility model relates to the technical field of carpet processing, in particular to a shaping device for carpet processing, which comprises a hand pressing plate and a connecting piece arranged on the hand pressing plate, and further comprises a lower shell, a coil assembly arranged on the connecting piece, a lead assembly arranged on the lower shell and a coil arranged on the lead assembly. The connecting piece is arranged on the hand pressing plate, the needle head is arranged on the hand pressing plate and fixedly connected with the hand pressing plate, the rivet is arranged on the hand pressing plate, the cloth pressing plate assembly is arranged on the connecting piece, the discharging plate is arranged in the lower shell, and the elastic assembly is arranged on the hand pressing plate. The carpet sewing machine can be used anytime and anywhere by a user, sewing can be completed only by pressing the hand pressing plate during use, operation is simple and easy to operate, the carpet sewing machine is provided with the rivet, the length of the needle head is adjusted according to carpets with different thicknesses, the carpet sewing machine is suitable for the carpets with different thicknesses, and the use range of the carpet sewing machine is greatly widened.

The utility model discloses a thread stand for a bar tacking machine, which comprises a base, the base is rotatably connected with a rotary table, and a tower-shaped thread coil is connected above the rotary table in a press fit manner; the rotary table comprises a first telescopic rod, the two sides of the first telescopic rod are rotationally and slidably connected with rotary pressing plates, clamping blocks are rotationally connected to the lower portions of the rotary pressing plates, the bottom of the first telescopic rod is fixedly connected with two guide plates, one guide plate is rotationally and slidably connected with a first connecting rod, and the end, away from the guide plate, of the first connecting rod is rotationally and slidably connected with a first elastic column; the annular bottom plate downwards presses the first elastic column, the first elastic column drives the first telescopic rod to move upwards, the rotary pressing plate is driven to clamp and press the inner ring, the inner ring is clamped and pressed through the rotary pressing plate, the inner ring is clamped and pressed through the rotary pressing plate, and the inner ring is clamped and pressed through the rotary pressing plate. The first telescopic rod drives the second connecting rod to drive the fixed rod to move outwards while moving upwards, and the second elastic column extends out and is clamped on the outer wall of the rotary table, so that the stability of the coil holder is improved.

The utility model relates to the field of carpet edge covering, in particular to an edge covering device for carpet processing. The technical problems that in the carpet edge covering process, most sewing devices of an existing edge covering device for carpet processing are arranged to be fixed, a carpet is placed through a large platform, the occupied area of the device is large, and the use convenience of the edge covering device for carpet processing is reduced are solved. According to the technical scheme, the edge covering device for carpet processing comprises a base assembly, a fixing assembly and a sewing assembly, a base body and a supporting table are arranged, so that a supporting frame is conveniently driven to move, the device adapts to carpets of different specifications, edge covering is conveniently conducted through a sewing machine body, and the problem that in the carpet edge covering process, the edge covering efficiency is high is solved. At present, most sewing devices of an existing edge covering device for carpet processing are arranged to be fixed, and a carpet is placed on a large platform, so that the occupied area of the device is large, and the use convenience of the edge covering device for carpet processing is reduced.

The utility model relates to the field of sewing machines, and discloses a folding thread spinning top support which comprises a first bottom plate, the top end of the left side of the first bottom plate is movably connected with a second bottom plate through a hinge, the bottom end of the right side of the first bottom plate is movably connected with a third bottom plate through a hinge, and the rear end of the first bottom plate is fixedly connected with a fixing pile. A plurality of groups of vertical columns are arranged; the supporting rod assembly comprises a plurality of groups of supporting rod bodies; and the wire guide assembly comprises a top cap and a triangular block, and a plurality of groups of wire passing hooks are fixedly mounted at the bottom end of the triangular block. The first bottom plate and the second bottom plate are arranged, and the first bottom plate and the third bottom plate are movably connected through the hinge, so that the whole support can be folded along the hinge shaft when not used, the size is greatly reduced, storage, transportation or carrying are convenient, the support is particularly suitable for family workbenches or moving scenes with limited space, operation is easy and convenient, and the practicability is high. The unfolding is fast.

The utility model discloses a thread stand structure for a bag sewing machine with backstitching and back stitching functions, and belongs to the technical field of bag sewing machines. Comprising a fixing table and a supporting rod, and the supporting rod is fixedly connected to the rear end of the upper side of the fixing table. The device has the advantages that the abutting plate is rotated to be vertically upward, the outer end of the sleeve rod is sleeved with the bobbin, then the sleeve rod is rotated to enable the outer side, located on the first threaded rod, of the sleeve rod to move downwards, meanwhile, the fixing ring moves downwards to push the abutting plate outwards, and after the abutting plate is rotated to the position where the upper end of the abutting plate abuts against the inner side of the bobbin, the pressing ring on the outer side of the sleeve rod is rotated; the thread guiding ring is arranged on the tray, so that the thread guiding ring is moved to the upper end of the bobbin, the bobbin on the tray is fixed between the tray and the pressing ring, then a part of the thread at the outer end of the bobbin is pulled out to penetrate through the thread guiding ring and then is connected into the bag sewing machine for use, and after the bobbin is fixed in the installation mode, the thread at the outer end of the bobbin can be pulled upwards; when the bobbin is subjected to upward dragging force, the bobbin is blocked by the pressing ring and cannot be separated from the upper end of the tray.

An exemplary embroidery accessory for a sewing machine includes a fixed support attached to the sewing machine and a rotating support rotatably attached to the fixed support. A drive mechanism rotates the rotating support relative to the fixed support, and a spool supported by the rotating support receives and dispenses a length of embroidery material. A removable guide is removably attached to the rotating support and includes a sewing guide with a needle aperture for receiving a needle of the sewing machine and at least one guide for guiding the length of embroidery material from the spool to the sewing guide.

The utility model relates to the technical field of buttonholing machines, and discloses a thread clamping device of a buttonholing machine, which comprises a machine body, a thread groove is fixedly connected in the machine body, a motor is fixedly mounted at the bottom of the thread groove, a winding roller is rotatably connected in the thread groove, the winding roller is fixedly connected to the output end of the motor, and the motor is fixedly connected with the thread groove. A wire is wound outside the winding roller, a tensioning frame is fixedly connected to the interior of the machine body, a tensioning roller is rotatably connected to the interior of the tensioning frame, a needle head is arranged at the bottom of the machine body, and a threading hole is formed in the needle head. The utility model has the following advantages and effects: water in the water tank is pumped into the pipeline by the water pump and then is sprayed out through the atomizing nozzle, the atomizing nozzle is arranged above the tensioning roller, and the spray generated by the atomizing nozzle is sprayed on the tensioning roller, so that the friction force between the wire and the tensioning roller can be reduced, and the service life of the wire is prolonged. And the phenomenon of breakage of the wiring is prevented.

The utility model relates to the technical field of sewing, and provides an automatic sewing machine with a thread pulling function, which comprises a sewing machine body, a processing table is arranged on the sewing machine body, a thread placing component is arranged on the processing table, and a clamping and fixing component is arranged on the processing table; the sewing thread placing assembly comprises a vertical frame, the upper end face of the machining table is arranged on the vertical frame, a self-rotating disc is arranged on the vertical frame, an extending frame is arranged on the side surface of the self-rotating disc, a thread disc is arranged at the top of the extending frame, a clamping frame is arranged on the upper end face of the self-rotating disc, a clamping disc is arranged at the top of the clamping frame, and a pressing rod is arranged at the bottom of the clamping disc. By means of the technical scheme, the problems that in the prior art, when a sewing machine is used, thread feeding needs to be conducted continuously, when the sewing speed is high, thread feeding of a thread shaft of the sewing machine is not stable in the thread feeding process of the thread shaft of the sewing machine, the twisting phenomenon is prone to occurring, and generally, the thread shaft is directly inserted and fixed through a vertical shaft, so that the thread shaft conducts autorotation; and the spool arranged in the way is easy to jump.

The utility model relates to the technical field of sewing machine equipment, and discloses an edge covering device of a sewing machine, which comprises a table, a sewing machine is fixedly connected outside a sewing machine seat, an edge covering device is arranged on one side outside a sewing groove, a motor is fixedly connected inside a motor box, and a cutting blade is arranged outside the motor box. The sewing machine has the following advantages and effects that a worker starts the sewing machine and the motor, the output end of the motor drives the cutting blade to rotate, the worker places cloth at the bottom of the sewing needle, the sewing machine drives the sewing needle to start sewing work on the cloth and an edge wrapping belt wrapping the edge of the cloth, and through sewing and threading of the sewing needle, the cloth and the edge wrapping belt can be cut off. When sewing and edge covering of cloth are about to be finished, a worker rotates a grip, a rotating cutting blade moves into a cutting groove, redundant edge covering belts are cut off, and the effect that the edge covering effect of the cloth is good is achieved through the operation.

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.

The invention belongs to the technical field of garment sewing overlock machines, and particularly discloses a household overlock machine which comprises a base plate, a limiting assembly, a thread feeding structure and a pressing assembly, a rack is fixed to the right side of the top end of the base plate, a cross beam is transversely erected above the rack, a machine head is installed at the lower left corner of the cross beam, and a pressing block is installed below the machine head; a hand wheel is installed on the right side of the rack, and a limiting assembly limiting rotation of the hand wheel is installed at the upper right corner of the base plate. According to the household overlock machine, a sleeve wound with a cotton thread is connected to a limiting rod in a sleeving mode, a thread body of the cotton thread penetrates through an insertion hole in a sliding block and then enters a machine needle of a machine head through a first rotating wheel, a second rotating wheel and a guide block for sewing, the sliding block is shifted left and right along a rail in advance according to the toughness of the thread, and then the sliding block is locked on a hole through a second bolt; therefore, tension for drawing the cotton thread is increased or reduced in advance, twisting and knotting of the cotton thread are prevented, the problem that the thread body lacks limiting is solved, and the device is worthy of application and popularization.

The utility model relates to the technical field of sewing machines, and particularly discloses a yarn roll fixing device and a template sewing machine, the yarn roll fixing device comprises an installation support and a fixing assembly, the fixing assembly comprises a base, a yarn shaft and a barrel, the barrel is obliquely arranged on the base upwards, and a yarn roll is closer to a rotating shaft of a machine head structure when placed on the yarn shaft. The centrifugal force borne by the yarn roll is reduced, the yarn roll faces the yarn tension device, and the rolled-out yarn can be used for sewing in time and is not prone to hooking other objects. The area of the cross section of the second port of the cylinder is smaller than that of the cross section of the first port, redundant yarn is difficult to slide out along the cylinder when the machine head structure rotates, the yarn shaft is consistent with the axis of the cylinder, and a yarn roll is difficult to shake in the cylinder. The utility model further provides the template sewing machine, the template sewing machine comprises the machine head structure and the yarn roll fixing device, when the machine head structure rotates, the yarn roll fixing device can fix the yarn roll, and the operation process of workers is not interfered by yarn.

The invention discloses sewing equipment, a pay-off device and method thereof and a product, and relates to the technical field of sewing equipment. The pay-off device comprises a bottom plate; two pay-off wheel assemblies; the two pay-off wheel assemblies are arranged on the bottom plate; the head ends of wefts wound by the two pay-off wheel assemblies are connected. Through the arrangement of the two pay-off wheel assemblies, only if the pay-off wheels in the two pay-off wheel assemblies are clamped, the weft may be snapped due to clamping of the pay-off wheels. Compared with the probability of clamping stagnation of a single pay-off wheel, the probability of clamping stagnation of the two pay-off wheels is relatively small. In other words, the probability that the wefts are snapped due to clamping stagnation of the pay-off wheel can be reduced, and the probability that the mechanical strength of the rock wool board is affected due to breakage of the wefts is also reduced.