An embroidery machine

Abstract

The invention discloses an embroidery machine, comprising a thread rack, a Y-axis driving device, an active driving device, a needle bar frame provided with a needle bar assembly, a presser foot assembly and a thread take-up rod assembly, a machine base, a thread clamp assembly, a shuttle box assembly, an X-axis driving device and an embroidery frame. The machine base is composed of a base and an L-shaped cantilever arranged on the base, the upper end rear part of the L-shaped cantilever is provided with a thread rack, the front end of the L-shaped cantilever is provided with a needle bar frame through a slideway, the front end of the L-shaped cantilever is provided with a color-changing driving mechanism for driving the needle bar frame, the upper end of the needle bar frame is provided with a thread clamp assembly connected with the thread rack, the machine base is provided with a Y-axis driving device and an active driving device for driving the needle bar assembly, the presser foot assembly and the thread take-up rod assembly, and the Y-axis driving device is provided with an X-axis driving device. Compared with the prior art, the embroidery machine can reduce vibration and noise, is easy to use, and improves stability and work efficiency.

Description

[Technical field]

[0001] The invention relates to an embroidery machine. [Background technology]

[0002] Embroidery machine, also known as computer embroidery machine, is the most advanced embroidery machine in contemporary times. It can make traditional hand embroidery be realized with high speed and high efficiency, and can also realize the requirements of "multi-level, multi-function, unity and perfection" that hand embroidery cannot achieve. It is an electromechanical product that embodies a variety of high-tech. As computer embroidery replaces hand embroidery, computer embroidery machine will also become the main machine type in the embroidery industry.

[0003] Nowadays, computer embroidery machines are no longer exclusive to factories. There are many small computer embroidery machines for home use on the market to meet people's needs for home embroidery. However, the existing small computer embroidery machines have large vibrations and noises when in use, which affects people's mood for home embroidery. In addition, they are inconvenient to use, have poor stability, and their work efficiency needs to be improved. [Summary of the invention]

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide an embroidery machine which can reduce vibration and noise, is easy to use, and improves stability and work efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides an embroidery machine, comprising a thread rack, a Y-axis driving device, an active driving device, a needle bar frame provided with a needle bar assembly, a presser foot assembly and a thread take-up rod assembly, a machine base, a thread clamp assembly, a shuttle box assembly, an X-axis driving device and an embroidery frame, wherein the machine base is composed of a base and an L-shaped cantilever arranged on the base, the upper rear end of the L-shaped cantilever is provided with a thread rack, the front end of the L-shaped cantilever is provided with a needle bar frame through a slide, the front end of the L-shaped cantilever is provided with a color-changing driving mechanism for driving the needle bar frame, the upper end of the needle bar frame is provided with a thread clamp assembly connected to the thread rack, the machine base is provided with a Y-axis driving device and an active driving device for driving the needle bar assembly, the presser foot assembly and the thread take-up rod assembly, the Y-axis driving device is provided with an X-axis driving device, the X-axis driving device is provided with an embroidery frame, the L-shaped cantilever is provided with a shuttle box assembly below the needle bar frame, the Y-axis driving device includes a driving mechanism and a sliding mechanism, the upper part of the L-shaped cantilever A front mounting seat and a rear mounting seat for suspending and installing the sliding mechanism are provided, and the driving mechanism drives the sliding mechanism to move, and the rear mounting seat includes two support bodies which are respectively integrally formed on the corresponding two sides of the rear end of the L-shaped cantilever, and the active driving device includes a head spindle, a plurality of bearing seats, a balancing block, a shuttle box shaft for driving the shuttle box assembly, a driving assembly, a thread take-up rod transmission assembly, a needle bar transmission assembly and a presser foot transmission assembly, and the head spindle is arranged on the L-shaped cantilever through the bearing seat, and a balancing block is provided on the head spindle, and the driving assembly drives the head spindle and the shuttle box shaft, and the head spindle drives the thread take-up rod transmission assembly, the needle bar transmission assembly and the presser foot transmission assembly, and the needle bar frame is provided with a center line passing device and an isolation mechanism, and the isolation mechanism includes an upper mounting plate located above the center line passing device and a lower mounting plate located below the center line passing device, and the upper mounting plate is provided with a plug-in sheet which is detachably fixedly connected and separates the upper and lower line passing areas of the center line passing device from the outside world.

[0006] Preferably, a shock-absorbing foot is provided at the bottom of the base, and the base consists of a main body and two support arms integrally formed on the front end of the main body, each of the support arms is provided with a table fixing device, and the table fixing device is provided with a table, and the table fixing device includes a seat body, a front connecting piece and a rear connecting piece, the front end of the seat body is detachably connected to the table through the front connecting piece, and the table plate is slidably and detachably connected to the rear end of the seat body through the rear connecting piece, the seat body is a rectangular tube, and the rear end of the seat body is formed with an inclined connecting portion, and the connecting portion is provided with a slidably and detachably connected to the rear connecting piece The rear connecting piece is a screw, the front end of the notch extends forward to the seat body, the front end of the notch is formed with an entrance portion matching the head of the screw, the width of the notch matches the screw rod of the screw, the front connecting piece is a star handle bolt, the front end of the seat body is provided with a connecting seat, the front end of the connecting seat is provided with an open groove matching the screw rod of the star handle bolt, the bottom of the table plate is provided with a support seat, the support seat is provided with two front and rear nuts matching the front connecting piece and the rear connecting piece respectively, and the bottom of the seat body is fixedly connected to the support arm through a fixed column.

[0007] Preferably, the wire rack comprises a wire rack, a plurality of hooks and a plurality of wire guide tubes, the wire rack is provided with a hook, a wire guide tube is provided between the wire rack and the wire clamp assembly, and also comprises a wire spool placement mechanism, the wire spool placement mechanism comprises a disk body and a plurality of wire spool fixing mechanisms arranged on the disk body, the wire rack comprises a wire cover and a plurality of supporting mechanisms, the wire cover is fixed on the disk body through the supporting mechanism, a hook is provided at the bottom of the wire cover, the wire spool fixing mechanism comprises a shaft body, a fixing seat and a plurality of hollow elastic cones, the shaft body is provided with a fixing seat, the fixing seat A hollow elastic cone is provided on the circumference of the wire cover, a plurality of fixing grooves matching the connecting heads of the wire tube are provided at the front end of the wire cover, a sealing cover for fixing the connecting heads of the wire tube in the fixing groove is provided on the wire cover, a needle number corresponding to the wire barrel fixing mechanism is provided on the bottom surface of the wire cover, a wire circuit corresponding to the wire tube is provided on the bottom surface of the wire cover, and the front end of each wire circuit corresponds to a needle number, and the supporting mechanism comprises a tube body and a telescopic rod provided in the tube body, and the tube body and the telescopic rod are fixedly connected together by a fastening screw provided on the tube body.

[0008] Preferably, the plug-in piece includes a block body and a plug-in slot body, the lower mounting plate is provided with a partition plate which corresponds one-to-one to the plug-in slot body and is inserted into the plug-in slot body, the upper end of the block body is provided with an elastic buckle, the lower front end of the block body is provided with a positioning hook, the upper front end of the block body is provided with a positioning body, the right side of the block body is provided with a wire passing groove, the upper mounting plate is provided with slot holes I, II and III which respectively cooperate with the elastic buckle, the positioning body and the positioning hook, the upper mounting plate is provided with slots which correspond one-to-one to and cooperate with the wire take-up rod, and side covers are provided at both ends of the upper mounting plate.

[0009] Preferably, the middle wire-passing device comprises a support body, a wire-passing spacer and a tension adjusting device, the support body is provided with a wire-passing spacer and a tension adjusting device located below the wire-passing spacer, the wire-passing spacer comprises wire-passing spacers arranged in sequence from front to back, the tension adjusting device comprises a wire-passing torsion spring and a wire-passing rod corresponding to the wire-passing spacers one by one, the free end of the wire-passing torsion spring is formed with a wire-passing hook, the wire-passing rod is located below the wire-passing hook, the tension adjusting device also comprises a connecting shaft, a plurality of torsion spring sleeves, a mounting sleeve and an adjusting mechanism, the connecting shaft can be rotatably arranged on the connecting ears at both ends of the support body, the fixing sleeve on the connecting shaft between the two connecting ears is provided with a mounting sleeve and a torsion spring sleeve located behind the mounting sleeve, each of the torsion spring sleeves is provided with a wire-passing torsion spring, one end of the wire-passing torsion spring is fixedly connected to the torsion spring sleeve, and the other free end extends out of the slot on the torsion spring sleeve, and the rear end of the connecting shaft is provided with a fixing sleeve fixedly connected to the connecting ear at the rear The adjusting device is characterized in that the adjusting device comprises a fixed gear sleeve, a movable gear sleeve, a spring, an adjusting handle and a limit sleeve, the rear end of the connecting shaft is sequentially sleeved with an adjusting handle, a limit sleeve, a spring and a movable gear sleeve from back to front, the front end of the movable gear sleeve is provided with a sleeve body located between the connecting shaft and the rear connecting ear, the sleeve body is sleeved with a fixed gear sleeve fixedly connected to the rear connecting ear, a gap is provided between the rear end of the movable gear sleeve and the limit sleeve, the rear end of the fixed gear sleeve is meshed with the front end of the movable gear sleeve, the movable gear sleeve and the mounting sleeve are provided with a wire passing rod, the wire passing rod and the movable gear sleeve are slidably connected to the screwing part of the adjusting handle is located outside the side cover, the adjusting handle and the limit sleeve are fixedly connected to the connecting shaft, the rear end of the adjusting handle is provided with a fixing hole cover, the wire passing barrier also includes a connecting seat integrally formed with all the wire passing barriers, and the free end of the wire passing barrier is provided with a plug-in portion inserted into the plug-in slot body.

[0010] Preferably, the driving assembly comprises a main motor, a synchronous pulley I arranged on the rotating shaft of the main motor, two synchronous pulleys II arranged on the shuttle box shaft, a synchronous pulley III and two synchronous transmission belts, a synchronous transmission belt is arranged on the synchronous pulley I and a synchronous pulley II, another synchronous transmission belt is arranged on the synchronous pulley III and another synchronous pulley II, the rear end of the head spindle is provided with two bearing seats and a synchronous pulley III, an optical coupling sensor sheet and an angle indicator ring are arranged between the two bearing seats and in sequence from front to back, the L-shaped cantilever is provided with an angle pointer matched with the angle indicator ring and an optical coupling sensor matched with the optical coupling sensor sheet, the front end of the head spindle is provided with a main driving cam, a bearing seat, a balancing block and a presser foot cam in sequence from front to back, and the presser foot transmission assembly comprises a presser foot assembly driving seat, a connecting rod I, a rotating shaft I, a connecting rod II and a connecting rod III, the rear end of the rotating shaft I is connected to the roller in the cam groove of the presser foot cam through the connecting rod I, the front end of the rotating shaft I is connected to one end of the connecting rod III through the connecting rod II, the other end of the connecting rod III is connected to the presser foot assembly driving seat, and the presser foot assembly driving seat is sleeved on two guide rods fixed in the front end of the L-shaped cantilever, the needle bar transmission assembly includes a connecting rod IV and a needle bar assembly driving seat, one end of the connecting rod IV is eccentrically connected to the front end of the main driving cam, and the other end is connected to the needle bar assembly driving seat slidably arranged on the two guide rods, the thread take-up lever transmission assembly includes a connecting rod V, a rotating shaft II, a swing arm and a roller, one end of the rotating shaft II is connected to the roller in the cam groove on the circumferential surface of the main driving cam through the connecting rod V, and the other end of the rotating shaft II is provided with a swing arm, and the swing arm is provided with a roller that matches the connecting groove of the thread take-up lever assembly.

[0011] Preferably, the presser foot assembly driving seat includes a transmission slider, two sliding sleeves, an input transmission rod and an output transmission body, the transmission slider is provided with two guide holes, the guide holes are each provided with a sliding sleeve, the sliding sleeve is each provided with a guide rod, the front end of the transmission slider is inserted with an input transmission rod fixedly connected to the transmission slider by a fixing screw, the rear end of the transmission slider is provided with an output transmission body, the front end of the input transmission rod is provided with a blind hole, the blind hole is provided with an oil-conducting wool felt, the circumferential surface of the input transmission rod is provided with a plurality of oil outlet holes connected with the blind holes, the output transmission body is provided with a buffer block, the central axes of the working ends of the input transmission rod and the buffer block are both located between the central axes of the two guide rods, and the input transmission rod is provided with a groove for tightening the input transmission rod with a fixing screw.

[0012] The rear end of the two guide rails is fixedly connected to the two support bodies, and the rear end of the two guide rails is integrally formed with the L-shaped cantilever, and the rear end of the two guide rails is fixedly connected to the two support bodies respectively. The driving mechanism comprises a motor, a driving pulley, a driven pulley, a synchronous belt, a guide wheel, a tensioning wheel and a motor seat. The driven pulley is arranged on the front mounting seat, and the motor and guide wheel are arranged in the lower part of the L-shaped cantilever through the motor seat. A driving pulley is provided on the rotating shaft of the motor, and a tensioning wheel located above the driving pulley is provided in the L-shaped cantilever. The driving pulley, the driven pulley, the guide wheel and the tensioning wheel are provided with a synchronous belt to make the synchronous belt L-shaped, and the synchronous belt is fixedly connected to the sliding seat, and an inspection hole is provided at the rear end of the L-shaped cantilever, and an inspection cover is provided on the inspection hole, and an adjustment bolt threadedly connected to the fork seat of the tensioning wheel is passed through the inspection cover.

[0013] Preferably, it also includes a spotlight fixed at the bottom of the front end of the L-shaped cantilever through a mounting seat, the irradiation point of the spotlight on the cloth corresponds to the center of the pinhole on the shuttle box assembly; it also includes a wire device arranged on the lower mounting plate and located below the partition, the wire mechanism includes a wire rod, a seat body and a fixed elastic buckle, the rear end of the wire rod is rotatably connected to the mounting seat body, the front end of the wire rod is detachable from the fixed connection with the fixed elastic buckle, a side cover is provided with an avoidance groove for avoiding the wire rod, the fixed elastic buckle includes a base, a groove and two elastic card bodies, the base is provided with a groove matching the front end of the wire rod, the base is provided with elastic card bodies on both sides of the groove for clamping the front end of the wire rod, the elastic card body includes a main body, an end of the main body close to the groove is formed with an inclined clamping portion, and the free end of the clamping portion is bent outward to form an inclined introduction portion.

[0014] Preferably, the color-changing drive mechanism comprises a color-changing motor, a color-changing cam, a plurality of color-changing rollers and a rotation sensor; a color-changing cam is provided on the rotating shaft of the color-changing motor; the needle bar frame is provided with color-changing rollers which are evenly spaced and matched with the threaded cam grooves of the color-changing cam; the rotation sensor is connected to the rotating shaft of the color-changing motor; the X-direction drive device comprises a mounting support, a slideway assembly, an X-direction drive motor with a driving synchronous pulley on the rotating shaft, an X-direction synchronous belt and a driven synchronous pulley; the mounting support is provided with an X-direction drive motor, a driven synchronous pulley and a slideway assembly located between the X-direction drive motor and the driven synchronous pulley; an embroidery frame fixing frame is provided on the slide seat of the slideway assembly; the driving synchronous pulley and the driven synchronous pulley are provided with an X-direction synchronous belt fixedly connected to the slide seat of the slideway assembly.

[0015] The beneficial effects of the present invention are as follows: when the embroidery object is large and heavy, the table can provide support and placement for the embroidery frame or the embroidery object; the front end of the base body is detachably connected to the table through the front connecting piece, and the table is slidably detachably connected to the rear end of the base body through the rear connecting piece, and when disassembling and installing, only the front connecting piece needs to be loosened and tightened, so that disassembly and installation are convenient; the base body is a rectangular tube, and the rear end of the base body is formed with an inclined connecting part, and the connecting part is provided with a notch that is slidably detachably connected to the rear connecting piece, and the bottom of the table is provided with a support seat, and the support seat is provided with two front and rear nuts that respectively match the front connecting piece and the rear connecting piece, so that the production can be simple and the installation rigidity is good;

[0016] The embroidery thread is guided by the cooperation of the thread hook and the thread guide tube. The thread guide tube is only used between the thread cover and the thread clamp seat assembly of the embroidery machine, which reduces the length of the thread guide tube. When threading manually, the embroidery thread can be directly hung on the thread hook, so that the operation is convenient and the threading efficiency is high. The support mechanism can be retracted and adjusted to adjust the height of the thread cover so as to find the best thread height and reduce the packaging size. When threading manually, it is guided through the wire path to improve convenience and avoid mistakes. The required thread spool can be fixed on the spool fixing mechanism according to the needle number to improve accuracy.

[0017] By providing a front mounting seat and a rear mounting seat for suspending and installing the sliding mechanism on the upper part of the L-shaped cantilever, the space occupied by the lower part is reduced; the front ends of the two guide rails are fixed on the same component, and the rear ends of the two guide rails are fixed on the same component, which avoids the assembly error of the split mounting seat, ensures the parallelism and wheelbase accuracy of the guide rails, and reduces the running damping and wear; the synchronous belt is designed in an L shape, which effectively solves the problem of spatial interference; the front mounting seat and the rear mounting seat are integrated with the L-shaped cantilever, and the guide rail mounting holes on the front mounting seat and the rear mounting seat are formed at one time, which further improves the accuracy;

[0018] By providing two guide holes on the transmission slide block, each of which is provided with a sliding sleeve, and each of which is provided with a guide rod, the double guide holes can improve the service life, operation stability and reliability; the front end of the transmission slide block is inserted with an input transmission rod fixedly connected to the transmission slide block by a fixing screw, so that the processing of the transmission slide block and the input transmission rod is simpler, so that the processing accuracy and assembly accuracy of each part are higher; the central axis of the working end of the input transmission rod and the buffer block is located between the central axes of the two guide rods, so that the force of the presser foot transmission assembly is reasonable and the overturning moment is small;

[0019] The machine head spindle is placed on the L-shaped cantilever through several bearing seats. A balancing block is provided on the machine head spindle. According to the load and rotational inertia eccentricity distribution of the machine head spindle, bearing seats are arranged at multiple points for support to increase the support rigidity and rotational stability of the machine head spindle. A balancing block is added at a suitable position to balance the load and the rotational inertia eccentricity caused by the mass eccentric piece to achieve a dynamic balancing effect, so that the machine can still work stably at high speed without vibration. The cooperation of the angle indicator ring and the angle pointer is convenient for installation, maintenance and debugging.

[0020] A spotlight is fixed at the bottom of the front end of the L-shaped cantilever through a mounting seat. The irradiation point of the spotlight on the fabric corresponds to the pinhole on the shuttle box assembly, which can improve the accuracy of the embroidery starting position and has a simple structure. It does not increase the size of the machine's appearance and space, and external interference and impact are not likely to affect the accuracy of the spotlight. It has high stability and reliability.

[0021] The upper mounting plate is provided with a plug which is detachably fixedly connected and separates the upper and lower thread passing areas of the middle thread passing device from the outside world. Each embroidery thread is separated from the outside world by the plug, so as to prevent the influence of external factors on the embroidery thread and improve the safety and thread passing stability. The plug is detachably fixedly connected to the upper mounting plate and can be removed individually without affecting other embroidery threads. The independent plug design and the open design of the middle thread passing device can realize more convenient manual threading (Note: there is no need to remove the plug when threading, and the embroidery thread can slide between the partition and the plug-in slot body); the plug-in part and the partition are inserted into the plug-in slot body to ensure that the tension and relaxation of the embroidery thread will not be thrown out of the specified area during the embroidery process; the free end of the thread torsion spring is formed with a thread passing hook, and the traditional thread passing hole is eliminated through the cooperation of the thread passing barrier, the wire guide device and the thread passing rod, so that threading is simple and work efficiency is improved.

[0022] Compared with the existing technology, the invention can reduce vibration and noise, is easy to use, and improves stability and work efficiency.

[0023] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0024] Figure 1 It is a structural schematic diagram of an embroidery machine of the present invention;

[0025] Figure 2 It is a side view of an embroidery machine of the present invention;

[0026] Figure 3 It is a three-dimensional view of an embroidery machine of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure in which the active drive device is arranged on the machine base;

[0028] Figure 5 yes Figure 4 A magnified view of middle;

[0029] Figure 6 It is a schematic diagram of the structure of the fixed elastic buckle;

[0030] Figure 7 yes Figure 1 A magnified view of middle;

[0031] Figure 8 It is a partial structural schematic diagram of the active drive device;

[0032] Fig. 9 It is a partial structural schematic diagram of the active drive device;

[0033] Fig.10 It is a structural schematic diagram of the table plate fixing device;

[0034] Fig.11 It is a schematic diagram of the structure of the wire rack;

[0035] Fig.12 It is a three-dimensional schematic diagram of the wire rack;

[0036] Fig.13 yes Fig.12 A magnified view of middle;

[0037] Fig.14 It is a schematic diagram of the structure of the Y-axis driving device;

[0038] Fig.15 It is a top view of the Y-axis drive device;

[0039] Fig.16 yes Fig.15 Partial cross-sectional view of AA;

[0040] Fig.17 It is a structural schematic diagram of the driving seat of the presser foot assembly;

[0041] Fig.18 yes Fig.17 Sectional view of AA in the middle;

[0042] Fig.19 It is a schematic diagram of the structure in which the isolation mechanism and the middle thread passing device are arranged on the needle bar frame;

[0043] Fig. 20 yes Fig.19 Side view with some of the inserts removed;

[0044] Fig.21 yes Fig. 20 Cross-sectional view of CC;

[0045] Fig. 22 It is a schematic diagram of the structure of the isolation mechanism;

[0046] Fig.23 It is a schematic diagram of the structure of the insert;

[0047] Fig.24 It is a structural diagram of the over-the-wire torsion spring;

[0048] Fig.25 It is a structural schematic diagram of the center line device;

[0049] Fig.26 It is a partial cross-sectional view of the center line device;

[0050] Fig. 27 Schematic diagram of the structure of the wire mechanism.

[0051] In the figure: 1-table fixing device, 2-thread rack, 3-Y-direction driving device, 4-active driving device, 5-needle rod rack, 6-isolating mechanism, 7-base, 8-clamp assembly, 9-shuttle box assembly, 10-X-direction driving device, 11-embroidery frame, 12-L-shaped cantilever, 13-shock-absorbing foot, 14-support arm, 15-table, 16-slide, 17-color-changing driving mechanism, 18-connecting groove, 19-spotlight, 110-main body, 111-mounting seat, 101-seat body, 102-connecting part, 103-notch, 104-front connecting piece, 105-rear connecting piece, 106-fixed column, 107-entrance, 108-connecting seat, 109-opening groove, 1010-support seat, 1011-nut, 171 -color-changing motor, 172-color-changing cam, 173-color-changing roller, 174-rotation sensor, 21-thread spool placement mechanism, 22-thread cover, 23-hook, 24-wire tube, 25-support mechanism, 26-fixed slot, 27-cover, 28-needle number, 29-wire line, 211-disk, 212-thread spool fixing mechanism, 2121-axis, 2122-hollow elastic cone, 2123-fixed seat, 251-tube, 252-telescopic rod, 31-driving mechanism, 32-sliding mechanism, 33-front mounting seat, 34-rear mounting seat, 35-inspection hole, 36-inspection cover, 37-adjusting bolt, 341-support body, 321-guide rail, 322-sliding seat, 311-motor, 312 - driving pulley, 313- driven pulley, 314- synchronous belt, 315- guide wheel, 316- tension wheel, 317- motor seat, 41- head spindle, 42- bearing seat, 43- balance block, 44- drive shuttle box assembly, 45- drive assembly, 46- thread take-up rod transmission assembly, 47- needle bar transmission assembly, 48- presser foot transmission assembly, 49- main drive cam, 410- presser foot cam, 411- guide rod, 412- angle indicator ring, 413- angle pointer, 414- optical coupler sensor, 415- optical coupler sensor, 451- main motor, 452- synchronous pulley I, 453- synchronous pulley II, 454- synchronous pulley III, 455- synchronous transmission belt, 461- connecting rod V, 462- rotating shaft II, 463-swing arm, 464-roller, 471-connecting rod IV, 472-needle bar assembly drive seat, 480-presser foot assembly drive seat, 481-connecting rod I, 482-rotating shaft I, 483-connecting rod II, 484-connecting rod III, 4801-transmission slider, 4802-sliding sleeve, 4803-input transmission rod, 4804-output transmission body, 4805-groove, 4806-blind hole, 4807-oil guide wool felt, 4808-oil outlet hole, 4809-buffer block, 48010-fixing screw, 50-middle thread device, 60-embroidery thread, 61-upper mounting plate, 62-insert, 63-lower mounting plate, 64-partition, 65-notch, 66-side cover, 611-slot I,612-slot II, 613-slot III, 621-blocking body, 622-plug-in slot, 623-elastic buckle, 624-positioning hook, 625-positioning body, 626-wire slot, 51-support body, 52-wire barrier, 53-tension adjusting device, 531-wire torsion spring, 532-wire rod, 533-connecting shaft, 534-torsion spring sleeve, 535-fixed gear sleeve, 536-moving gear sleeve, 537-spring, 538-adjusting handle, 539-limiting sleeve, 5310-installing sleeve, 5311-slot, 5312-gap, 5313 - sleeve, 5314-fixed hole cover, 521-thread barrier, 522-connecting seat, 53110-thread hook, 1001-mounting support, 1002-slideway assembly, 1003-X-direction drive motor, 1004-X-direction synchronous belt, 1005-driven synchronous pulley, 1006-embroidery frame fixing frame, 500-wire guide mechanism, 501-wire rod, 502-seat body, 503-fixed elastic buckle, 5031-base, 5032-groove, 5033-elastic card body, 50331-body, 50332-clamping part, 50333-introduction part. [Specific implementation method]

[0052] See also Figures 1 to 27The present invention discloses an embroidery machine, comprising a thread rack 2, a Y-axis driving device 3, an active driving device 4, a needle bar frame 5 provided with a needle bar assembly, a presser foot assembly and a thread take-up rod assembly, a machine base, a thread clamp assembly 8, a shuttle box assembly 9, an X-axis driving device 10 and an embroidery frame 11. The machine base is composed of a base 7 and an L-shaped cantilever 12 arranged on the base 7. The thread rack 2 is arranged at the rear of the upper end of the L-shaped cantilever 12. The needle bar frame 5 is arranged at the front end of the L-shaped cantilever 12 through a slide 16. A color-changing driving mechanism 17 for driving the needle bar frame 5 is arranged at the front end of the L-shaped cantilever 12. The color-changing driving mechanism 17 comprises a color-changing motor 171, a color-changing cam 172, a plurality of color-changing rollers 173 and a rotation sensor 174. The rotating shaft of the color-changing motor 171 is provided with a The color-changing cam 172 is provided on the needle bar frame 5, and color-changing rollers 173 are arranged evenly at intervals and matched with the cam groove of the color-changing cam 172. The rotation sensor 174 is connected to the rotating shaft of the color-changing motor 171. The needle bar frame 5 is provided with color-changing rollers 173 arranged evenly at intervals and matched with the threaded cam groove of the color-changing cam 172. The upper end of the needle bar frame 5 is provided with a thread clamp assembly 8 connected to the thread frame 2. The machine base is provided with a Y-direction drive device 3 and an active drive device 4 for driving the needle bar assembly, the presser foot assembly and the thread take-up rod assembly. The Y-direction drive device 3 is provided with an X-direction drive device 10, and the X-direction drive device 10 is provided with an embroidery frame 11. The L-shaped cantilever 12 is provided with a shuttle box assembly below the needle bar frame 5. 9, the Y-axis driving device 3 includes a driving mechanism 31 and a sliding mechanism 32, the upper part of the L-shaped cantilever 12 is provided with a front mounting seat 33 and a rear mounting seat 34 for suspending and mounting the sliding mechanism 32, the driving mechanism 31 drives the sliding mechanism 32 to move, the rear mounting seat 34 includes two support bodies 341 respectively integrally formed on the two sides corresponding to the rear end of the L-shaped cantilever 12, the active driving device 4 includes a head spindle 41, a plurality of bearing seats 42, a balance block 43, a shuttle box shaft 44 for driving the shuttle box assembly 9, a driving assembly 45, a thread take-up rod transmission assembly 46, a needle bar transmission assembly 47 and a presser foot transmission assembly 48, the head spindle 41 is arranged on the L-shaped cantilever 12 through the bearing seat 42, and the head spindle 41 is provided with There is a balance block 43, the driving assembly 45 drives the machine head spindle 41 and the shuttle box shaft 44, the machine head spindle 41 drives the thread take-up rod transmission assembly 46, the needle bar transmission assembly 47 and the presser foot transmission assembly 48, the needle bar frame 5 is provided with a middle thread passing device 50 and an isolation mechanism 6, the isolation mechanism 6 includes an upper mounting plate 61 located above the middle thread passing device 50 and a lower mounting plate 63 located below the middle thread passing device 50, the upper mounting plate 61 is provided with a plug-in piece 62 which is detachably fixedly connected and separates the upper and lower thread passing areas of the middle thread passing device 50 from the outside, the plug-in piece 62 includes a blocking body 621 and a plug-in slot body 622, the lower mounting plate 63 is provided with a partition plate 64 which corresponds to the plug-in slot body 622 one by one and is inserted into the plug-in slot body 622,A spotlight 19 is fixedly arranged at the bottom of the front end of the L-shaped cantilever 12 through a mounting seat 111, and the irradiation point of the spotlight 19 on the cloth corresponds to the center of the pinhole on the shuttle box assembly 9. A shock-absorbing foot 13 is arranged at the bottom of the base 7. The base 7 consists of a main body 110 and two support arms 14 integrally formed on the front end of the main body 110, and a table fixing device 1 is arranged on each of the support arms 14. A table 15 is arranged on the table fixing device 1, and the table fixing device 1 includes a seat body 101, a front connecting piece 104 and a rear connecting piece 105. The front end of the seat body 101 is detachably connected to the table 15 through the front connecting piece 104, and the table 15 is slidably detachably connected to the rear end of the seat body 101 through the rear connecting piece 105. The body 101 is a rectangular tube, and the rear end of the seat body 101 is formed with an inclined connection portion 102, and the connection portion 102 is provided with a notch 103 that is slidably and detachably connected to the rear connection member 105, and the rear connection member 105 is a screw, and the front end of the notch 103 extends forward to the seat body 101, and the front end of the notch 103 is formed with an entrance portion 107 that matches the head of the screw, and the width of the notch 103 matches the screw rod of the screw, and the front connection member 104 is a star handle bolt, and the front end of the seat body 101 is provided with a connection seat 108, and the front end of the connection seat 108 is provided with an open groove 109 that matches the screw rod of the star handle bolt, and the bottom of the table 15 is provided with a support seat 1010, and the support seat 1010 is provided with two front and rear nuts 1011 respectively matching with the front connecting piece 104 and the rear connecting piece 105. The bottom of the seat body 101 is fixedly connected with the support arm 14 through the fixed column 106. The wire rack 2 includes a wire rack, a plurality of hooks 23 and a plurality of lead tubes 24. The wire rack is provided with a hook 23. A lead tube 24 is provided between the wire rack and the clamp assembly 8. It also includes a wire drum placing mechanism 21. The wire drum placing mechanism 21 includes a disk body 211 and a plurality of wire drum fixing mechanisms 212 arranged on the disk body 211. The wire rack includes a wire cover 22 and a plurality of support mechanisms 25. The wire cover 22 is fixedly arranged on the disk body 211 through the support mechanism 25. The bottom of the wire cover 22 is provided with a hook 23, the wire drum fixing mechanism 212 includes a shaft 2121, a fixing seat 2123 and a plurality of hollow elastic cones 2122, the shaft 2121 is provided with a fixing seat 2123, the circumference of the fixing seat 2123 is provided with a hollow elastic cone 2122, the front end of the wire cover 22 is provided with a plurality of fixing grooves 26 that match the connector of the lead tube 24, the wire cover 22 is provided with a cover 27 that fixes the connector of the lead tube 24 in the fixing groove 26, the bottom surface of the wire cover 22 is provided with needle numbers 28 corresponding to the wire drum fixing mechanism 212, the bottom surface of the wire cover 22 is provided with wire paths 29 corresponding to the lead tube 24, and the front end of each wire path 29 corresponds to a needle number 28,The support mechanism 25 includes a tube body 251 and a telescopic rod 252 arranged in the tube body 251, and the tube body 251 and the telescopic rod 252 are fixedly connected together by fastening screws arranged on the tube body 251. The upper end of the blocking body 621 is provided with an elastic buckle 623, and the lower front end of the blocking body 621 is provided with a positioning hook 624. The upper front end of the blocking body 621 is provided with a positioning body 625. The right side of the blocking body 621 is provided with a wire groove 626. The upper mounting plate 61 is provided with a slot I611, a slot II612 and a slot III613 respectively matching the elastic buckle 623, the positioning body 625 and the positioning hook 624. The upper mounting plate 61 is provided with a slot 65 corresponding to and matching the thread take-up rod. The upper mounting plate 61 Side covers 66 are provided at both ends of the middle wire-passing device 50, which includes a support body 51, a wire-passing baffle 52 and a tension adjusting device 53. The support body 51 is provided with a wire-passing baffle 52 and a tension adjusting device 53 located below the wire-passing baffle 52. The wire-passing baffle 52 includes wire-passing baffles 521 arranged in sequence from front to back. The tension adjusting device 53 includes a wire-passing torsion spring 531 and a wire-passing rod 532 corresponding to the wire-passing baffles 521. A wire-passing hook 53110 is formed at the free end of the wire-passing torsion spring 531. The wire-passing rod 532 is located below the wire-passing hook 53110. The tension adjusting device 53 also includes a connecting shaft 533, a plurality of torsion spring sleeves 534, a mounting sleeve 5310 and an adjusting mechanism. 3 is rotatably arranged on the connecting ears 511 at both ends of the support body 51, and a mounting sleeve 5310 and a torsion spring sleeve 534 located behind the mounting sleeve 5310 are fixedly sleeved on the connecting shaft 533 between the two connecting ears 511, and a through-line torsion spring 531 is arranged in each of the torsion spring sleeves 534, one end of the through-line torsion spring 531 is fixedly connected to the torsion spring sleeve 534, and the other free end extends out of the slot 5311 on the torsion spring sleeve 534, and the rear end of the connecting shaft 533 is provided with an adjustment mechanism fixedly connected to the rear connecting ears 511, and the adjustment mechanism includes a fixed gear sleeve 535, a movable gear sleeve 536, a spring 537, an adjustment handle 538 and a limit sleeve 539, and the rear end of the connecting shaft 533 is sleeved with the adjustment handle 538, the limit sleeve 539 in sequence from back to front. A positioning sleeve 539, a spring 537 and a movable gear sleeve 536, the front end of the movable gear sleeve 536 is provided with a sleeve body 5313 located between the connecting shaft 533 and the rear connecting ear 511, the sleeve body 5313 is sleeved with a fixed gear sleeve 535 fixedly connected to the rear connecting ear 511, a gap 5312 is provided between the rear end of the movable gear sleeve 536 and the limiting sleeve 539, the rear end of the fixed gear sleeve 535 is meshedly connected with the front end of the movable gear sleeve 536, the movable gear sleeve 536 and the mounting sleeve 5310 are provided with a wire rod 532, the wire rod 532 is slidably connected to the movable gear sleeve 536, the screwing portion of the adjusting handle 538 is located outside the side cover 66, the adjusting handle 538 and the limiting sleeve 539 are fixedly connected to the connecting shaft 533,A fixing hole cover 5314 is provided at the rear end of the adjustment handle 538, the line-passing barrier 52 also includes a connecting seat 522 integrally formed with all the line-passing barriers 521, and a plug-in portion 523 inserted into the plug-in slot 622 is provided at the free end of the line-passing barrier 521. The driving assembly 45 includes a main motor 451, a synchronous pulley I452 provided on the rotating shaft of the main motor 451, two synchronous pulleys II453 provided on the shuttle box shaft 44, a synchronous pulley III454 and two synchronous transmission belts 455, a synchronous transmission belt 455 is provided on the synchronous pulley I452 and a synchronous pulley II453, and another synchronous pulley III454 and another synchronous pulley II453 are provided with a synchronous transmission belt 455, the rear end of the machine head main shaft 41 is provided with two bearing seats 42 and a synchronous pulley III454, a photocoupler sensor sheet 414 and an angle indicator ring 412 located between the two bearing seats 42 and arranged in sequence from front to back, the L-shaped cantilever 12 is provided with an angle pointer 413 matched with the angle indicator ring 412 and a photocoupler sensor 415 matched with the photocoupler sensor sheet 414, the front end of the machine head main shaft 41 is provided with a main driving cam 49, a bearing seat 42, a balance block 43 and a presser foot cam 410 in sequence from front to back, the presser foot transmission assembly 48 includes a presser foot assembly driving seat 480, a connecting rod I481, a rotating shaft I482, a connecting rod II483 and a connecting rod III484, The rear end of the rotating shaft I482 is connected to the roller in the cam groove of the presser foot cam 410 through the connecting rod I481, and the front end of the rotating shaft I482 is connected to one end of the connecting rod III484 through the connecting rod II483, and the other end of the connecting rod III484 is connected to the presser foot assembly driving seat 480, and the presser foot assembly driving seat 480 is sleeved on two guide rods 411 fixedly arranged in the front end of the L-shaped cantilever 12, and the needle bar transmission assembly 47 includes a connecting rod IV471 and a needle bar assembly driving seat 472, one end of the connecting rod IV471 is eccentrically connected to the front end of the main driving cam 49, and the other end is connected to the needle bar assembly driving seat 472 which is slidably arranged on the two guide rods 411, and the thread taking-up rod The transmission assembly 46 includes a connecting rod V461, a rotating shaft II462, a swing arm 463 and a roller 464. One end of the rotating shaft II462 is connected to the roller in the cam groove on the circumferential surface of the main driving cam 49 through the connecting rod V461. The other end of the rotating shaft II462 is provided with a swing arm 463. The swing arm 463 is provided with a roller 464 that matches the connecting groove 18 of the thread take-up lever assembly. The presser foot assembly driving seat 480 includes a transmission slider 4801, two sliding sleeves 4802, an input transmission rod 4803 and an output transmission body 4804. The transmission slider 4801 is provided with two guide holes, each of which is provided with a sliding sleeve 4802, and each of which is penetrated by a guide rod 411.An input transmission rod 4803 fixedly connected to the transmission slider 4801 by a fixing screw 48010 is inserted into the front end of the transmission slider 4801, an output transmission body 4804 is provided at the rear end of the transmission slider 4801, a blind hole 4806 is provided at the front end of the input transmission rod 4803, an oil-conducting wool felt 4807 is provided in the blind hole 4806, a plurality of oil outlet holes 4808 connected to the blind hole 4806 are provided on the circumference of the input transmission rod 4803, a buffer block 4809 is provided on the output transmission body 4804, the central axes of the working ends of the input transmission rod 4803 and the buffer block 4809 are both located between the central axes of the two guide rods 411, and a fixing screw 4801 is provided on the input transmission rod 4803. 0 is tightened against the groove 4805 of the input transmission rod 4803, the sliding mechanism 32 includes two guide rails 321 and a sliding seat 322 slidably mounted on the two guide rails 321, the front ends of the two guide rails 321 are fixedly connected to the front mounting seat 33, the front mounting seat 33 is integrally formed with the L-shaped cantilever 12, the rear ends of the two guide rails 321 are respectively fixedly connected to the two support bodies 341, the driving mechanism 31 includes a motor 311, a driving pulley 312, a driven pulley 313, a synchronous belt 314, a guide wheel 315, a tensioning wheel 316 and a motor seat 317, the driven pulley 313 is arranged on the front mounting seat 33, the motor 311 and the guide wheel 315 are arranged in the lower part of the L-shaped cantilever 12 through the motor seat 317, the A driving pulley 312 is provided on the rotating shaft of the motor 311, and a tensioning wheel 316 is provided in the L-shaped cantilever 12, which is located above the driving pulley 312. A synchronous belt 314 is provided on the driving pulley 312, the driven pulley 313, the guide wheel 315 and the tensioning wheel 316, and the synchronous belt 314 is L-shaped. The synchronous belt 314 is fixedly connected to the sliding seat 322. An inspection hole 35 is provided at the rear end of the L-shaped cantilever 12, and an inspection cover 36 is provided on the inspection hole 35. An adjusting bolt 37 threadedly connected to the fork seat of the tensioning wheel 316 is passed through the inspection cover 36. The L-shaped cantilever 12 also includes a wire device 500 provided on the lower mounting plate 63 and located below the partition 64. The wire mechanism 500 includes a wire rod 501, a seat body 502 and a fixed elastic The buckle 503, the rear end of the conductor rod 501 is rotatably connected to the mounting seat body 502, the front end of the conductor rod 501 is detachable from the fixed elastic buckle 503, the side cover 66 is provided with an avoidance groove 67 for avoiding the conductor rod 501, the fixed elastic buckle 503 includes a base 5031, a groove 5032 and two elastic card bodies 5033, the base 5031 is provided with a groove 5032 that matches the front end of the conductor rod 501, the base 5031 is provided with elastic card bodies 5033 for clamping the front end of the conductor rod 501 on both sides of the groove 5032, the elastic card body 5033 includes a body 50331, and the body 50331 is formed with an inclined clamping portion 50332 at one end close to the groove 5032,The free end of the clamping portion 50332 is bent outward to form an inclined introduction portion 50333. The X-direction drive device 10 includes a mounting support 1001, a slideway assembly 1002, an X-direction drive motor 1003 with a driving synchronous pulley on the rotating shaft, an X-direction synchronous belt 1004 and a driven synchronous pulley 1005. The mounting support 1001 is provided with an X-direction drive motor 1003, a driven synchronous pulley 1005 and a slideway assembly 1002 located between the X-direction drive motor 1003 and the driven synchronous pulley 1005. The slide seat of the slideway assembly 1002 is provided with an embroidery frame 11. The driving synchronous pulley and the driven synchronous pulley 1005 are provided with an X-direction synchronous belt 1004 fixedly connected to the slide seat of the slideway assembly 1002.

[0053] Working process of the present invention:

[0054] During operation of the embroidery machine of the present invention, after the head of the screw is placed in the inlet portion 107, the table 15 is pushed backward until the head of the screw contacts the connecting portion 102, and a certain backward thrust is maintained. At this time, the screw rod of the star handle bolt is located in the opening groove 109, and then the star handle screw is tightened to firmly fix the table 15 on the base body 101. When disassembling, it is only necessary to loosen the star handle screw and pull the table 15 forward until the screw reaches the inlet portion 107, and then the table 15 can be lifted out.

[0055] The thread spool is mounted on the corresponding thread spool fixing mechanism 212 according to the needle number, and then the embroidery thread unwound on the thread spool is hung on the corresponding hook 23 and passed through the corresponding thread guide tube 24, and then through the thread clamp assembly 8, and then passes through the right side of the thread barrier 521, the thread hook 53110, the left side of the thread barrier 521, the thread take-up rod, the left side of the thread barrier 521, the outer side of the thread rod 532, the inner side of the guide rod 501 and the lower thread assembly, and finally reaches the embroidery needle.

[0056] The extension length of the telescopic rod 252 can be adjusted by loosening the fastening screw, thereby achieving height adjustment of the wire cover 22 .

[0057] When adjusting the tension, turn the adjustment handle 538 clockwise or counterclockwise. The adjustment handle 538 drives the torsion spring sleeve 534, the mounting sleeve 5310 and the movable gear sleeve 536 to rotate through the connecting shaft 533. The mounting sleeve 5310 and the movable gear sleeve 536 drive the wire-passing rod 532 to move. The movable gear sleeve 536 and the fixed gear sleeve 535 jump one or several teeth to cooperate. The torsion spring sleeve 534 drives the wire-passing torsion spring 531 to rotate clockwise or counterclockwise to achieve tension adjustment.

[0058] The main motor 451 drives the head spindle 41 and the shuttle box shaft 44 to rotate through the cooperation of the synchronous pulley and the synchronous transmission belt, the head spindle 41 drives the main driving cam 49 and the presser foot cam 410 to rotate, the presser foot cam 410 drives the connecting rod I481 to swing back and forth, the connecting rod I481 drives the connecting rod II483 to swing through the rotating shaft I482, the connecting rod II483 drives the presser foot assembly driving seat 480 to move up and down through the connecting rod III484, and the presser foot assembly driving seat 480 drives the presser foot assembly to work; the main driving cam 49 drives the needle bar assembly driving seat 472 to move up and down through the connecting rod IV471, and the needle bar assembly driving seat 472 drives the needle bar assembly to work; the main driving cam 49 drives the connecting rod V461 to swing back and forth, the connecting rod V461 drives the swing arm 463 to swing through the rotating shaft II462, and the swing arm 463 drives the thread take-up rod assembly to work through the roller 464.

[0059] The color-changing motor 171 drives the color-changing cam 172 to rotate, and the color-changing cam 172 drives the needle bar frame 5 to move through the color-changing roller 173 to achieve color change.

[0060] When threading manually, first turn the wire rod 501 90 degrees, and after threading is completed, turn the wire rod 501 again to fix the front end of the wire rod 501 in the groove 5032. At this time, the embroidery thread is naturally located on the inner side of the wire rod 501, which improves convenience.

[0061] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. An embroidery machine, characterized in that: The embroidery machine comprises a thread stand (2), a Y-axis driving device (3), an active driving device (4), a needle bar frame (5) provided with a needle bar assembly, a presser foot assembly and a thread take-up bar assembly, a machine base, a thread clamp assembly (8), a shuttle box assembly (9), an X-axis driving device (10) and an embroidery frame (11), wherein the machine base is composed of a base (7) and an L-shaped cantilever (12) arranged on the base (7), the thread stand (2) is arranged at the rear of the upper end of the L-shaped cantilever (12), the needle bar frame (5) is arranged at the front end of the L-shaped cantilever (12) through a slideway (16), the color changing driving mechanism (17) for driving the needle bar frame (5) is arranged at the front end of the L-shaped cantilever (12), the thread clamp assembly (8) connected to the thread stand (2) is arranged at the upper end of the needle bar frame (5), and the machine base is provided with a thread clamp assembly (8) connected to the thread stand (2). A Y-direction drive device (3) and an active drive device (4) for driving a needle bar assembly, a presser foot assembly and a thread take-up rod assembly are provided. The Y-direction drive device (3) is provided with an X-direction drive device (10). The X-direction drive device (10) is provided with an embroidery frame (11). A shuttle box assembly (9) is provided on the L-shaped cantilever (12) below the needle bar frame (5). The Y-direction drive device (3) comprises a drive mechanism (31) and a sliding mechanism (32). A front mounting seat (33) and a rear mounting seat (34) for suspending and mounting the sliding mechanism (32) are provided on the upper part of the L-shaped cantilever (12). The drive mechanism (31) drives the sliding mechanism (32) to move. The rear mounting seat (34) comprises two mounting seats which are respectively integrally formed on the L-shaped cantilever. The rear end of the machine head (41) corresponds to the support bodies (341) on both sides thereof, the active driving device (4) comprising a machine head spindle (41), a plurality of bearing seats (42), a balancing block (43), a shuttle box shaft (44) driving the shuttle box assembly (9), a driving assembly (45), a thread take-up lever transmission assembly (46), a needle bar transmission assembly (47) and a presser foot transmission assembly (48), the machine head spindle (41) being arranged on the L-shaped cantilever (12) through the bearing seat (42), a balancing block (43) being arranged on the machine head spindle (41), the driving assembly (45) driving the machine head spindle (41) and the shuttle box shaft (44), the machine head spindle (41) driving the thread take-up lever transmission assembly (46), the needle bar transmission assembly (47) and the presser foot transmission assembly (48) 48), the needle bar frame (5) is provided with a middle thread passing device (50) and an isolation mechanism (6), the isolation mechanism (6) comprises an upper mounting plate (61) located above the middle thread passing device (50) and a lower mounting plate (63) located below the middle thread passing device (50), the upper mounting plate (61) is provided with an insert (62) which is detachably fixedly connected and isolates the upper and lower thread passing areas of the middle thread passing device (50) from the outside, the bottom of the base (7) is provided with a shock-absorbing foot (13), the base (7) is composed of a body (110) and two support arms (14) integrally formed on the front end of the body (110), the support arms (14) are each provided with a table fixing device (1), and the table fixing device (1) is provided with a table (15),The table top fixing device (1) comprises a base body (101), a front connecting piece (104) and a rear connecting piece (105); the front end of the base body (101) is detachably connected to the table top (15) via the front connecting piece (104); the table top (15) is slidably detachably connected to the rear end of the base body (101) via the rear connecting piece (105); the base body (101) is a rectangular tube; the rear end of the base body (101) is formed with an inclined connecting portion (102); the connecting portion (102) is provided with a notch (103) slidably detachably connected to the rear connecting piece (105); the rear connecting piece (105) is a screw; the front end of the notch (103) extends forward to the base body (101); the notch (103) is ) is formed at the front end with an entrance portion (107) that matches the head of the screw, the width of the notch (103) matches the screw rod of the screw, the front connecting piece (104) is a star handle bolt, the front end of the seat body (101) is provided with a connecting seat (108), the front end of the connecting seat (108) is provided with an opening groove (109) that matches the screw rod of the star handle bolt, the bottom of the table plate (15) is provided with a support seat (1010), and the support seat (1010) is provided with two front and rear nuts (1011) that match the front connecting piece (104) and the rear connecting piece (105) respectively, the bottom of the seat body (101) is fixedly connected to the support arm (14) through a fixing column (106), and the wire rack (2) includes The invention comprises a wire passing frame, a plurality of hooks (23) and a plurality of wire guide tubes (24), wherein the wire passing frame is provided with a hook (23), a wire guide tube (24) is provided between the wire passing frame and a wire clamp assembly (8), and a wire spool placement mechanism (21), wherein the wire spool placement mechanism (21) comprises a disk body (211) and a plurality of wire spool fixing mechanisms (212) arranged on the disk body (211), wherein the wire passing frame comprises a wire passing cover (22) and a plurality of supporting mechanisms (25), wherein the wire passing cover (22) is fixed on the disk body (211) via the supporting mechanisms (25), a hook (23) is provided at the bottom of the wire passing cover (22), and the wire spool fixing mechanism (212) comprises a shaft body (2121), a fixing seat (2123) and a plurality of hollow elastic cones. The shaft (2122) is provided with a fixing seat (2123) on the shaft (2121), and a hollow elastic cone (2122) is provided on the circumference of the fixing seat (2123). The front end of the wire cover (22) is provided with a plurality of fixing grooves (26) matched with the connector of the lead tube (24), and the wire cover (22) is provided with a cover (27) for fixing the connector of the lead tube (24) in the fixing groove (26). The bottom surface of the wire cover (22) is provided with needle numbers (28) corresponding to the wire barrel fixing mechanism (212). The bottom surface of the wire cover (22) is provided with wire paths (29) corresponding to the lead tube (24), and the front end of each wire path (29) corresponds to a needle number (28).The support mechanism (25) comprises a tube body (251) and a telescopic rod (252) disposed in the tube body (251); the tube body (251) and the telescopic rod (252) are fixedly connected together by means of a fastening screw disposed on the tube body (251); the insert (62) comprises a stopper (621) and a plug-in slot (622); a partition (64) corresponding to the plug-in slot (622) and inserted into the plug-in slot (622) is disposed on the lower mounting plate (63); an elastic buckle (623) is disposed at the upper end of the stopper (621); A positioning hook (624) is provided at the lower front end, a positioning body (625) is provided at the upper front end of the blocking body (621), a thread passing groove (626) is provided on the right side of the blocking body (621), a slot I (611), a slot II (612) and a slot III (613) are provided on the upper mounting plate (61) respectively matching with the elastic buckle (623), the positioning body (625) and the positioning hook (624), a slot (65) corresponding to and matching with the thread take-up rod is provided on the upper mounting plate (61), and side covers (66) are provided at both ends of the upper mounting plate (61).

2. An embroidery machine according to claim 1, characterized in that: The central wire passing device (50) comprises a support body (51), a wire passing barrier (52) and a tension adjusting device (53); the support body (51) is provided with a wire passing barrier (52) and a tension adjusting device (53) located below the wire passing barrier (52); the wire passing barrier (52) comprises wire passing barriers (521) arranged in sequence from front to back; the tension adjusting device (53) comprises a wire passing torsion spring (531) and a wire passing rod (532) corresponding to the wire passing barriers (521) in a one-to-one manner; a wire passing hook (53110) is formed at a free end of the wire passing torsion spring (531); the wire passing rod (532) is located below the wire passing hook (53110); the tension adjusting device (53) further comprises a connecting shaft (533 ), a plurality of torsion spring sleeves (534), a mounting sleeve (5310) and an adjustment mechanism, wherein the connecting shaft (533) is rotatably arranged on the connecting ears (511) at both ends of the support body (51), a mounting sleeve (5310) and a torsion spring sleeve (534) located behind the mounting sleeve (5310) are provided on the connecting shaft (533) between the two connecting ears (511), each torsion spring sleeve (534) is provided with a through-line torsion spring (531), one end of the through-line torsion spring (531) is fixedly connected to the torsion spring sleeve (534), and the other free end extends out of a slot (5311) on the torsion spring sleeve (534), a rear end of the connecting shaft (533) is provided with an adjustment mechanism fixedly connected to the rear connecting ear (511), and the adjustment mechanism The mechanism comprises a fixed gear sleeve (535), a movable gear sleeve (536), a spring (537), an adjustment handle (538) and a limit sleeve (539); the rear end of the connecting shaft (533) is sleeved with the adjustment handle (538), the limit sleeve (539), the spring (537) and the movable gear sleeve (536) in sequence from the back to the front; the front end of the movable gear sleeve (536) is provided with a sleeve body (5313) located between the connecting shaft (533) and the rear connecting ear (511); the sleeve body (5313) is sleeved with a fixed gear sleeve (535) fixedly connected to the rear connecting ear (511); a gap (5312) is provided between the rear end of the movable gear sleeve (536) and the limit sleeve (539); the rear end of the fixed gear sleeve (535) is provided with a gap (5312) between the rear end of the movable gear sleeve (536) and the limit sleeve (539); The end is meshedly connected with the front end of the movable gear sleeve (536); the movable gear sleeve (536) and the mounting sleeve (5310) are provided with a wire rod (532); the wire rod (532) and the movable gear sleeve (536) are slidably connected; the screwing portion of the adjustment handle (538) is located outside the side cover (66); the adjustment handle (538) and the limit sleeve (539) are fixedly connected to the connecting shaft (533); the rear end of the adjustment handle (538) is provided with a fixing hole cover (5314); the wire-passing baffle (52) further comprises a connecting seat (522) integrally formed with all the wire-passing baffles (521); and the free end of the wire-passing baffle (521) is provided with a plug-in portion (523) inserted into the plug-in slot (622).

3. An embroidery machine as claimed in claim 1, characterized in that: The driving assembly (45) comprises a main motor (451), a synchronous pulley I (452) arranged on a rotating shaft of the main motor (451), two synchronous pulleys II (453) arranged on a shuttle box shaft (44), a synchronous pulley III (454) and two synchronous transmission belts (455), wherein the synchronous pulley I (452) and one synchronous pulley II (453) are provided with a synchronous transmission belt (455), and the synchronous pulley III (454) and another synchronous pulley II (453) are provided with another synchronous transmission belt (455), and the rear end of the machine head spindle (41) is provided with two bearing seats (42) and a bearing seat (42) located between the two bearing seats (42) and A synchronous pulley III (454), an optical coupling sensor sheet (414) and an angle indicator ring (412) are sequentially arranged from front to back; an angle pointer (413) matched with the angle indicator ring (412) and an optical coupling sensor (415) matched with the optical coupling sensor sheet (414) are arranged on the L-shaped cantilever (12); a main driving cam (49), a bearing seat (42), a balancing block (43) and a presser foot cam (410) are sequentially arranged from front to back on the front end of the machine head spindle (41); the presser foot transmission assembly (48) comprises a presser foot assembly driving seat (480), a connecting rod I (481), a rotating shaft I (482), a connecting rod II (483) and a connecting rod II (484). The connecting rod III (484) is connected to the roller in the cam groove of the presser foot cam (410) through the connecting rod I (481), the front end of the rotating shaft I (482) is connected to one end of the connecting rod III (484) through the connecting rod II (483), the other end of the connecting rod III (484) is connected to the presser foot assembly drive seat (480), and the presser foot assembly drive seat (480) is sleeved on two guide rods (411) fixedly arranged in the front end of the L-shaped cantilever (12). The needle bar transmission assembly (47) includes a connecting rod IV (471) and a needle bar assembly drive seat (472). The connecting rod IV (47 1), one end of which is eccentrically connected to the front end of the main driving cam (49), and the other end of which is connected to a needle bar assembly driving seat (472) slidably arranged on two guide rods (411). The thread take-up lever transmission assembly (46) comprises a connecting rod V (461), a rotating shaft II (462), a swing arm (463) and a roller (464). One end of the rotating shaft II (462) is connected to a roller in a cam groove on the peripheral surface of the main driving cam (49) through the connecting rod V (461). The other end of the rotating shaft II (462) is provided with a swing arm (463), and the swing arm (463) is provided with a roller (464) that matches the connecting groove (18) of the thread take-up lever assembly.

4. An embroidery machine as claimed in claim 3, characterized in that: The presser foot assembly driving seat (480) comprises a transmission slider (4801), two sliding sleeves (4802), an input transmission rod (4803) and an output transmission body (4804); the transmission slider (4801) is provided with two guide holes, each of the guide holes is provided with a sliding sleeve (4802), each of the sliding sleeves (4802) is penetrated with a guide rod (411), the front end of the transmission slider (4801) is inserted with an input transmission rod (4803) fixedly connected to the transmission slider (4801) by a fixing screw (48010), the rear end of the transmission slider (4801) is provided with an output transmission body (4804), and the input transmission A blind hole (4806) is provided at the front end of the rod (4803), an oil-conducting wool felt (4807) is provided in the blind hole (4806), a plurality of oil outlet holes (4808) connected to the blind hole (4806) are provided on the circumference of the input transmission rod (4803), a buffer block (4809) is provided on the output transmission body (4804), the central axes of the working ends of the input transmission rod (4803) and the buffer block (4809) are both located between the central axes of the two guide rods (411), and a groove (4805) is provided on the input transmission rod (4803) for tightening the input transmission rod (4803) with a fixing screw (48010).

5. An embroidery machine as claimed in claim 1, characterized in that: The sliding mechanism (32) comprises two guide rails (321) and a sliding seat (322) slidably mounted on the two guide rails (321); the front ends of the two guide rails (321) are fixedly connected to the front mounting seat (33); the front mounting seat (33) and the L-shaped cantilever (12) are integrally formed together; the rear ends of the two guide rails (321) are respectively fixedly connected to two support bodies (341); the driving mechanism (31) comprises a motor (311), a driving pulley (312), a driven pulley (313), a synchronous belt (314), a guide wheel (315), a tension wheel (316) and a motor seat (317); the driven pulley (313) is arranged on the front mounting seat (33); the motor (311) and the guide wheel (315) are electrically connected to each other. A machine base (317) is arranged in the lower part of the L-shaped cantilever (12); a driving pulley (312) is arranged on the rotating shaft of the motor (311); a tensioning wheel (316) is arranged above the driving pulley (312) in the L-shaped cantilever (12); a synchronous belt (314) is arranged on the driving pulley (312), the driven pulley (313), the guide wheel (315) and the tensioning wheel (316); the synchronous belt (314) is L-shaped; the synchronous belt (314) is fixedly connected to the sliding seat (322); an inspection hole (35) is arranged at the rear end of the L-shaped cantilever (12); an inspection cover (36) is arranged on the inspection hole (35); and an adjusting bolt (37) threadedly connected to the fork seat of the tensioning wheel (316) is passed through the inspection cover (36).

6. An embroidery machine as claimed in claim 1, characterized in that: The utility model also includes a spotlight (19) fixedly arranged at the bottom of the front end of the L-shaped cantilever (12) through a mounting seat (111), wherein the irradiation point of the spotlight (19) on the fabric corresponds to the center of the pinhole on the shuttle box assembly (9); and a wire guide mechanism (500) arranged on the lower mounting plate (63) and located below the partition plate (64), wherein the wire guide mechanism (500) includes a wire guide rod (501), a seat body (502) and a fixed elastic buckle (503), wherein the rear end of the wire guide rod (501) is rotatably connected to the mounting seat body (502), the front end of the wire guide rod (501) is detachably connected to the fixed elastic buckle (503), and a side cover (66) is provided with an avoidance groove (66) for avoiding the wire guide rod (501). 7), the fixed elastic buckle (503) comprises a base (5031), a groove (5032) and two elastic card bodies (5033), the base (5031) is provided with a groove (5032) matching with the front end of the conductor rod (501), the base (5031) is provided with elastic card bodies (5033) for clamping the front end of the conductor rod (501) on both sides of the groove (5032), the elastic card body (5033) comprises a body (50331), an end of the body (50331) close to the groove (5032) is formed with an inclined clamping portion (50332), and the free end of the clamping portion (50332) is bent outward to form an inclined introduction portion (50333).

7. An embroidery machine according to any one of claims 1 to 6, characterized in that: The color-changing drive mechanism (17) comprises a color-changing motor (171), a color-changing cam (172), a plurality of color-changing rollers (173) and a rotation sensor (174); the color-changing cam (172) is provided on the rotating shaft of the color-changing motor (171); the needle bar frame (5) is provided with color-changing rollers (173) which are evenly spaced and matched with the threaded cam groove of the color-changing cam (172); the rotation sensor (174) is connected to the rotating shaft of the color-changing motor (171); the X-direction drive device (10) comprises a mounting support (1001), a slideway assembly (1002), an active synchronous motor (173) provided on the rotating shaft; An X-direction driving motor (1003), an X-direction synchronous belt (1004) and a driven synchronous belt pulley (1005) of a step pulley are provided on the mounting support (1001), the X-direction driving motor (1003), the driven synchronous belt pulley (1005) and a slideway assembly (1002) located between the X-direction driving motor (1003) and the driven synchronous belt pulley (1005), the slide seat of the slideway assembly (1002) is provided with an embroidery frame fixing frame (1006), and the driving synchronous belt pulley and the driven synchronous belt pulley (1005) are provided with an X-direction synchronous belt (1004) fixedly connected to the slide seat of the slideway assembly (1002).

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