A sleeve shaft direct drive motor with a wire winder

Abstract

The utility model relates to sewing machine motor technical field, concretely, the utility model relates to a sleeve shaft direct drive motor with winder, including the shell, be equipped with the stator in the shell, be equipped with the rotor in the stator, the hollow rotating shaft is connected to the rotor, the hollow rotating shaft one end is connected with the rotating shaft of sewing machine body, the hollow rotating shaft other end is connected with the fixed needle inner core and hand wheel, be equipped with the hall board with being connected to the stator, be equipped with control element on the hall board, be equipped with magnet on the fixed needle inner core, the magnet is located control element one side, be connected with the winder on the shell, the winder includes the rotating wheel, the rotating wheel is in the winder work with hand wheel and the resistance is tight, this integral motor whole simple and stable structure, easy and fast installation, bearingless design, low cost, solved the problem that sewing machine modification direct drive motor does not have the winder, make it have the winding function and fixed needle function, effectively improved the efficiency of worker sewing.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine motor technology, specifically to a direct drive motor with a winding device. Background Technology

[0002] Currently, all industrial sewing machines require an electric motor to drive them. Older industrial sewing machines primarily used motors suspended under the sewing machine table, utilizing belt drive to rotate the machine and simultaneously power the thread winder. These under-mounted motors were mainly of two types: clutch motors and energy-saving under-mounted motors. Clutch motors have significant drawbacks: firstly, their speed is not adjustable, preventing workers from adjusting the sewing speed; secondly, they are noisy, creating an uncomfortable working environment; and thirdly, they run continuously, even while the worker is handling the fabric, consuming a lot of electricity. Energy-saving under-mounted motors, while offering adjustable speed, quiet operation, and energy efficiency, overcome many of the clutch motor's shortcomings. However, they still have several limitations: firstly, belt drive results in power loss; and secondly, belt slippage prevents needle-stopping functionality. Thirdly, they are expensive, requiring numerous accessories such as a mounting bracket, belt cover, bearings, and pulleys, increasing the overall cost of the motor.

[0003] The applicant discovered through a search that Chinese patent document application number 201710118840.1, published on June 20, 2017, discloses a sewing machine electronic control adjustment method, a stitch length adjustment mechanism, and a sewing machine. The sewing machine includes a stitch length knob mounted on the machine head and a sensor located on the side of the stitch length knob for sensing the rotational position of the knob. The sewing machine includes an electronic control system and a display. The electronic control system includes a display module for controlling the display and a control module for controlling the sewing machine's operation. In this stitch length adjustment mechanism and sewing machine, because a sensor is located on the side of the stitch length knob, the parameters in the electronic control module can automatically change according to the stitch length, and the stitch length adjustment is less likely to affect the normal operation of the sewing machine. However, this device also cannot solve the aforementioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a direct-drive motor with a winding mechanism and a needle stop function. Utility Model Content

[0005] The purpose of this invention is to provide a direct-drive motor with a winding mechanism and a needle stop function.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a direct-drive motor with a winding device, comprising a housing; a stator disposed in the housing; a rotor disposed in the stator; a hollow rotating shaft connected to the rotor; one end of the hollow rotating shaft connected to the rotating shaft of the sewing machine body; a fixed needle core and a handwheel connected to the other end of the hollow rotating shaft; a Hall plate disposed on the stator; a control element disposed on the Hall plate; a magnet disposed on the fixed needle core; the magnet being disposed on one side of the control element;

[0007] A winding device is connected to the outer casing; the winding device includes a rotating wheel; the rotating wheel abuts against the handwheel when the winding device is in operation.

[0008] The hollow rotating shaft includes multiple stepped shaft segments; the hollow rotating shaft includes a first shaft segment, a second shaft segment, a third shaft segment, and a fourth shaft segment; the rotor and the fixed needle inner core are both sleeved on the second shaft segment; the rotor abuts against the first shaft segment; a first radial screw is connected to the fixed needle inner core; the first radial screw abuts against the second shaft segment; the handwheel is sleeved on the third and fourth shaft segments; a second radial screw is connected to the handwheel; the second radial screw abuts against the fourth shaft segment.

[0009] The top of the outer casing is provided with a mounting sleeve; the mounting sleeve is provided with a limiting annular step; the winding device is provided on the limiting annular step; the winding device is provided with a winding device clamping screw; the mounting sleeve is provided with a mounting sleeve threaded hole; the winding device clamping screw is connected to the mounting sleeve threaded hole; the winding device clamping screw clamps the winding device in the mounting sleeve;

[0010] The top of the winder is provided with a lever mounting shaft and an adjustment through hole; a limiting baffle is provided on one side of the adjustment through hole; a rotating rod is provided in the adjustment through hole; one end of the rotating rod is connected to the winding disc; the other end of the rotating rod is connected to the rotating wheel; a lever is hinged on the lever mounting shaft; the lever is located on one side of the winding disc.

[0011] The handwheel has an annular boss on the side near the rotating wheel; the annular boss abuts against the rotating wheel.

[0012] The fixed needle core is clearance-fitted with the hollow rotating shaft; the fixed needle core is provided with a plurality of first radial threaded holes; the first radial screw is connected in the first radial threaded holes and abuts against the hollow rotating shaft; the magnet is fixedly connected to the fixed needle core and is disposed close to the edge of the fixed needle core.

[0013] The control element includes a fixed-needle Hall effect sensor; the fixed-needle Hall effect sensor is connected to the Hall effect plate; the fixed-needle Hall effect sensor cooperates with the magnet.

[0014] The stator includes a stator frame; the Hall plate is connected to the stator frame; the stator needle Hall is connected to the side of the Hall plate away from the stator frame; a commutation Hall is connected to the side of the Hall plate away from the stator needle Hall; the stator frame is provided with a Hall slot; the commutation Hall is inserted into the Hall slot.

[0015] The outer casing is provided with an annular boss; the stator abuts against the annular boss.

[0016] The outer casing has a keyway on its annular protrusion; the stator has a locating pin on its side wall; the locating pin is connected to the keyway; the outer casing has multiple threaded holes at its end; the stator has a stator fixing screw; the stator fixing screw is connected to the threaded hole in the outer casing; the stator fixing screw presses the stator into the outer casing; the outer casing has a cable outlet.

[0017] The outer shell is connected to a connecting plate; the connecting plate is provided with a convex stop; the outer shell is provided with a concave stop; the convex stop and the concave stop cooperate; the outer shell is connected to the connecting plate by screws.

[0018] The connecting plate is provided with a positioning groove and a positioning hole; the sewing machine body is provided with a positioning protrusion; the positioning protrusion is located in the positioning groove; the hollow rotating shaft is located in the positioning hole.

[0019] The rotating shaft is provided with a fixed plane; the first shaft section is provided with a plurality of rotating shaft threaded holes; a rotating shaft fixing screw is provided in the rotating shaft threaded hole; the rotating shaft fixing screw abuts against the fixed plane.

[0020] The outer casing is provided with multiple mounting posts; each mounting post is provided with a threaded hole; a wire clamp is connected to the threaded hole.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This direct-drive motor with a winding mechanism integrates the winding mechanism into the motor body, enabling the motor to perform wire winding. The winding wheel is located inside the motor and not exposed, resulting in a more aesthetically pleasing appearance. The internal needle core structure allows for needle stopping, and the radial magnet induction method effectively reduces the motor's thickness. The motor rotor is directly connected and fixed to the motor body via a shaft, eliminating the need for front and rear bearings, front and rear end covers, pulleys, belts, belt covers, and mounting brackets compared to existing hanging motors, thus reducing costs. The direct-drive structure provides higher transmission efficiency, simpler installation, lower resistance, structural stability, quieter operation, longer service life, and requires no maintenance.

[0023] 2. Specifically, first, center the connecting plate by using a stop or positioning protrusion to align the center of the sewing machine body's shaft with the center of the connecting plate, and then fix it to the sewing machine body with screws or adhesive.

[0024] 3. Specifically, the motor shaft is a hollow shaft, on which the rotor is fitted with an interference fit, preventing relative movement after fitting. The rear end of the hollow shaft is then fitted with a stator core, with a clearance fit between the hollow shaft and the stator core, secured to the hollow shaft with radial screws. The relative position of the stator core and the hollow shaft can be adjusted using these radial screws to regulate the needle stop position. This hollow shaft is fitted onto the sewing machine body's shaft and secured to the machine body's shaft with radial screws, forming an integrated structure. This ensures the hollow shaft, rotor, and sewing machine body's shaft are coaxial. The stator is fixed inside the outer casing with a locating pin, concentric with the end stop of the outer casing. The outer casing is then fixed to the connecting plate via the interlocking end stop and the connecting plate stop. Ensuring the coaxiality of the stator and shaft guarantees the concentricity of the stator and rotor, resulting in high overall motor concentricity, lower running resistance, quieter operation, smoother operation, and improved product stability.

[0025] 4. Specifically, the winding device is installed inside the mounting sleeve of the motor housing. The handwheel is fixed to the hollow rotating shaft by radial screws. By moving the lever on the winding device, it abuts against the annular boss on the handwheel. The rotation of the handwheel drives the winding device wheel to rotate, thus making the winding device work; thereby enabling the motor to perform the winding function.

[0026] 5. Specifically, the stator is equipped with a Hall plate. The signal is generated by the interaction between the magnet on the inner core of the needle and the Hall plate, thereby enabling the motor to perform the needle positioning function. Workers do not need to manually adjust the needle position, which can effectively improve the sewing efficiency of workers.

[0027] In summary, this direct-drive motor with a winding mechanism features a simple and stable overall structure, convenient and quick installation, low cost, high concentricity during installation, quieter operation without bearings, high transmission efficiency, and simultaneous functions of thread-knocking and needle-fixing, thereby improving sewing efficiency and extending the motor's service life. Attached Figure Description

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model installed on the machine body.

[0030] Figure 2 This is a schematic diagram of the connecting plate fixing structure of this utility model.

[0031] Figure 3 This is an exploded view of the present invention.

[0032] Figure 4 This is a schematic diagram of the winding device of this utility model when it is not in operation.

[0033] Figure 5 This is a schematic diagram of the winding mechanism of this utility model during operation.

[0034] Figure 6 This is a schematic diagram of the stator structure of this utility model.

[0035] Figure 7 This is an exploded view of the rotor of this utility model.

[0036] The markings in the above figures are all:

[0037] The diagram is marked as follows:

[0038] 1. Outer shell

[0039] 2. Stator, 201. Stator frame, 202. Hall effect slot, 203. Stator positioning slot.

[0040] 3. Rotor

[0041] 4. Hollow rotating shaft, 401. First shaft section, 402. Second shaft section, 403. Third shaft section, 404. Fourth shaft section.

[0042] 5. Sewing machine body, 501. Rotary shaft, 502. Fixed plane,

[0043] 6. Fixed needle inner core, 601. Magnet, 602. First radial threaded hole,

[0044] 7. Handwheel, 701, Annular boss,

[0045] 8. Hall effect sensor, 801. Fixed-position Hall effect sensor, 802. Commutation Hall effect sensor.

[0046] 9. Winder; 901. Rotary wheel; 902. Lever mounting shaft; 903. Limit baffle; 904. Rotating rod; 905. Winding reel; 906. Lever.

[0047] 10. Install the sleeve; 101. Limit the annular step; 102. Tighten the winding screw; 103. Install the sleeve threaded hole.

[0048] 11. Annular boss on the outer casing; 111. Keyway; 112. Locating pin; 113. Threaded hole on the outer casing; 114. Stator fixing screw; 115. Cable outlet.

[0049] 12. Connecting plate; 121. Raised stop; 122. Recessed stop; 123. Positioning groove; 124. Positioning hole.

[0050] 13. Positioning bump,

[0051] 14. Threaded hole for rotating shaft.

[0052] 15. Install the column; 151. Threaded hole in the column; 152. Wire clamp. Detailed Implementation

[0053] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0054] Figure 1 The direct-drive motor with a winding mechanism shown includes a housing 1; a stator 2 is housed in the housing 1; a rotor 3 is housed in the stator 2; a hollow shaft 4 is connected to the rotor 3; one end of the hollow shaft 4 is connected to the shaft 501 of the sewing machine body 5; the other end of the hollow shaft 4 is connected to a fixed needle core 6 and a handwheel 7; a Hall plate 8 is connected to the stator 2; a control element is provided on the Hall plate 8; a magnet 601 is provided on the fixed needle core 6; the magnet 601 is located on one side of the control element.

[0055] A winder 9 is connected to the outer casing 1; the winder 9 includes a rotating wheel 901; the rotating wheel 901 is pressed against the handwheel 7 when the winder 9 is working.

[0056] This motor requires no bearings, front and rear end covers, pulleys, or other accessories. Before leaving the factory, the positioning core 6 and rotor 3 are already assembled on the hollow shaft 4, and the stator 2 and winding device 9 are already assembled inside the outer casing 1. During installation, simply fix the connecting plate 12 to the sewing machine body 5, then install the hollow shaft 4 on the shaft 501, then install the outer casing 1 on the connecting plate 12, then install the winding device 9 on the outer casing 1, and finally attach the handwheel 7 to the hollow shaft 4 to complete the installation. The overall installation involves fewer parts, is convenient and quick to assemble, and has low cost. It also has the functions of needle setting and thread stitching. The bearingless motor has low operating noise, stable structure, long service life, and requires no maintenance.

[0057] like Figure 3 As shown, the hollow rotating shaft 4 includes multiple stepped shaft segments; the hollow rotating shaft 4 includes a first shaft segment 401, a second shaft segment 402, a third shaft segment 403, and a fourth shaft segment 404; the rotor 3 and the fixed needle inner core 6 are both sleeved on the second shaft segment 402; the rotor 3 abuts against the first shaft segment 401; a first radial screw is connected to the fixed needle inner core 6; the first radial screw abuts against the second shaft segment 402; the handwheel 7 is sleeved on the third shaft segment 403 and the fourth shaft segment 404; a second radial screw is connected to the handwheel 7; the second radial screw abuts against the fourth shaft segment 404.

[0058] The hollow shaft 4 is a stepped shaft; the hollow shaft 4 includes a first shaft section 401, a second shaft section 402, a third shaft section 403, and a fourth shaft section 404; the rotor 3 is sleeved on the second shaft section 402, and its bottom abuts against the first shaft section 401; the fixed needle core 6 is fixedly sleeved on the second shaft section 402 with a first radial screw; the handwheel 7 is fixedly sleeved on the fourth shaft section 404 with a second radial screw; when the winder 9 is working, the annular boss 701 on the handwheel 7 contacts the rotating wheel 901 of the winder 9, and the rotation of the handwheel 7 drives the rotating wheel 901 to rotate, thereby driving the winder 9 to work; when the winder 9 is not working, the annular boss 701 on the handwheel 7 separates from the rotating wheel 901 of the winder 9.

[0059] like Figure 4-5 As shown, the top of the outer casing 1 is provided with a mounting sleeve 10; the mounting sleeve 10 is provided with a limiting annular step 101; the winder 9 is provided on the limiting annular step 101; the winder 9 is provided with a winder clamping screw 102; the mounting sleeve 10 is provided with a mounting sleeve threaded hole 103; the winder clamping screw 102 is connected in the mounting sleeve threaded hole 103; the winder clamping screw 102 clamps the winder 9 in the mounting sleeve 10.

[0060] The top of the winder 9 is provided with a lever mounting shaft 902 and an adjustment through hole; a limit baffle 903 is provided on one side of the adjustment through hole; a rotating rod 904 is provided in the adjustment through hole; one end of the rotating rod 904 is connected to the winding disc 905; the other end of the rotating rod 904 is connected to the rotating wheel 901; a lever 906 is hinged on the lever mounting shaft 902; the lever 906 is located on one side of the winding disc 905.

[0061] The handwheel 7 has an annular boss 701 on the side near the rotating wheel 901; the annular boss 701 abuts against the rotating wheel 901.

[0062] The top of the winding device 9 is equipped with a lever 902. By moving the lever 902, the lever 902, through a mechanical linkage, causes the rotating wheel 901 to abut against the annular boss 701. The rotation of the annular boss 701 drives the rotating wheel 901 to rotate, which in turn drives the winding disc 901 to rotate and wind the wire. As the winding disc 901 is fully wound, the wire pushes away the lever 902, allowing the lever 902 to return to its original position. This causes the rotating wheel 901 to separate from the annular boss 701, and the winding disc 901 stops rotating. The winding device 9 is installed in the mounting sleeve 10. The limiting annular step 101 is an integral structure with the mounting sleeve 10, supporting the winding device 9. The mounting sleeve 10 has multiple mounting sleeve threaded holes 103 along the circumferential direction. Tighten the winding screw 102 onto the perforated hole 103 to press the winding device 9. The rotating wheel 901 of the winding device 9 is located inside the outer casing 1, making the motor more aesthetically pleasing and effectively protecting the winding device 9. The lever mounting shaft 902 is fixedly connected to the top of the winding device 9. The lever 906 is mounted on the lever mounting shaft 902 and can rotate. By moving the lever 906 of the winding device 9, the rotating wheel 901 can abut against the annular boss 701 of the handwheel 7. The rotation of the handwheel 7 drives the winding device 9 to rotate and wind the thread. This allows the motor to drive the sewing machine body 5 to work while also having the function of winding the bobbin thread. This increases the functionality of the motor. Compared with an independent electronic winding device, this device is more durable and has a lower cost due to its mechanical structure.

[0063] like Figure 6-7 As shown, the fixed needle inner core 6 is clearance-fitted with the hollow rotating shaft 4; the fixed needle inner core 6 is provided with a plurality of first radial threaded holes 602; the first radial screw is connected in the first radial threaded holes 602 and abuts against the hollow rotating shaft 4; the magnet 601 is fixedly connected to the fixed needle inner core 6, and the magnet 601 is set close to the edge of the fixed needle inner core 6.

[0064] The control element includes a fixed needle Hall 801; the fixed needle Hall 801 is connected to the Hall plate 8; the fixed needle Hall 801 cooperates with the magnet 601.

[0065] The stator 2 includes a stator frame 201; a Hall plate 8 is connected to the stator frame 201; a stator needle Hall 801 is connected to the side of the Hall plate 8 away from the stator frame 201; a commutation Hall 802 is connected to the side of the Hall plate 8 away from the stator needle Hall 801; a Hall slot 202 is provided on the stator frame 201; and the commutation Hall 802 is inserted into the Hall slot 202.

[0066] Hall plate 8 is fixed to stator frame 201. Stator needle Hall 801 is welded above Hall plate 8, and multiple commutation Hall 802s are welded below Hall plate 8 and inserted into Hall slots 202 of stator frame 201. Stator needle inner core 6 is sleeved on hollow rotating shaft 4, with a clearance fit between the inner core 6 and the hollow rotating shaft 4, allowing adjustment of the relative position of the inner core 6 and the hollow rotating shaft 4 to change the position of the stator needle. Multiple first radial threaded holes 602 are provided along the radial direction of the outer circumference of the inner core 6. A first radial screw is installed inside the perforation 602, and the fixed needle core 6 is sleeved on the hollow rotating shaft 4 through the first radial screw; a magnet 601 is provided on the fixed needle core 6; a Hall plate 8 is installed on the stator 2, and a fixed needle Hall 801 is provided on the Hall plate 8. The magnet 601 and the fixed needle Hall 801 interact to generate a signal, and then the motor controller controls the stop position of the motor, thereby realizing that the sewing machine needle stops at the desired position, which facilitates operations such as thread cutting and foot turning, thereby improving work efficiency.

[0067] The outer casing 1 is provided with an annular boss 11; the stator 2 abuts against the annular boss 11.

[0068] The outer casing has a keyway 111 on the annular boss 11; the stator 2 has a positioning pin 112 on its side wall; the positioning pin 112 is connected in the keyway 111; the outer casing 1 has multiple outer casing threaded holes 113 at its end; the stator 2 has a stator fixing screw 114; the stator fixing screw 114 is connected in the outer casing threaded hole 113; the stator fixing screw 114 presses the stator 2 into the outer casing 1; the outer casing 1 has a cable outlet 115.

[0069] The stator 2 has a stator positioning groove 203 on its side wall; a positioning pin 112 is located in the stator positioning groove 203; the stator 2 is provided with a positioning pin 112 that cooperates with the keyway 111 inside the housing 1; the stator 2 is positioned and sleeved inside the housing 1 by the positioning pin 112; one end of the stator 2 abuts against the annular boss 11 of the housing, and the end of the housing 1 is provided with a plurality of housing thread holes 113 along its circumference, and the stator fixing screws 114 are screwed into the housing thread holes 113 to press the stator 2 tight; because of the positioning pin 112, the relative movement between the stator 2 and the housing 1 can be prevented, and because the Hall plate 8 is installed on the stator 2, the position of the stator needle Hall 801 is also fixed; the motor wires are discharged from the outlet 115.

[0070] like Figure 2 As shown, the outer shell 1 is connected to the connecting plate 12; the connecting plate 12 is provided with a convex stop 121; the outer shell 1 is provided with a concave stop 122; the convex stop 121 and the concave stop 122 cooperate; the outer shell 1 is connected to the connecting plate 12 by screws.

[0071] The outer shell 1 has a recessed stop 122 at one end that cooperates with the convex stop 121 on the connecting plate 12. The stop is used to position the outer shell 1 and the connecting plate 12 to keep them centered. The outer shell 1 and the connecting plate 12 are then connected and fixed with screws.

[0072] The connecting plate 12 is provided with a positioning groove 123 and a positioning hole 124; the sewing machine body 5 is provided with a positioning protrusion 13; the positioning protrusion 13 is located in the positioning groove 123; the hollow rotating shaft 4 is located in the positioning hole 124.

[0073] The bottom of the connecting plate 12 is provided with a positioning groove 123 and a positioning hole 124. If the sewing machine body 5 is provided with a positioning protrusion 13, it will cooperate with the positioning groove 123 to make the center of the connecting plate 12 correspond to the center of the hollow shaft 4. If the sewing machine body 5 is not provided with a positioning protrusion 13, a hollow cylinder will be sleeved on the hollow shaft 4 and then sleeved in the positioning hole 124. The inner diameter of the hollow cylinder will cooperate with the hollow shaft 4, and the outer diameter will cooperate with the positioning hole 124 to make the center of the connecting plate 12 correspond to the center of the shaft 4. After the center of the connecting plate 12 is aligned, if the sewing machine body 5 has screw holes, the connecting plate 12 can be fixed with screws. If the sewing machine body 5 does not have screw holes, it can be fixed with fixing glue. Multiple fixing methods can increase the number of compatible models of the motor.

[0074] The rotating shaft 501 is provided with a fixed plane 502; the first shaft section 401 is provided with a plurality of rotating shaft threaded holes 14; the rotating shaft threaded holes 14 are provided with rotating shaft fixing screws; the rotating shaft fixing screws abut against the fixed plane 502.

[0075] The outer periphery of the first shaft section 401 is provided with a plurality of shaft threaded holes 14 along its radial direction; the shaft fixing screws are threaded into the shaft threaded holes 14; the shaft fixing screws are tightened, and the ends of the plurality of shaft fixing screws abut against the fixing plane 502 and the outer wall of the shaft 501, thereby realizing the fixed connection of the shaft 501 in the first shaft section 401, and the two can achieve synchronous rotation.

[0076] The outer casing 1 is provided with multiple mounting posts 15; the mounting posts 15 are provided with post threaded holes 151; a wire clamp 152 is connected in the post threaded holes 151.

[0077] The specific workflow of this utility model is as follows:

[0078] First, the rotor 3 is fitted onto one end of the hollow shaft 4, and then the stator core 6 is fitted onto the hollow shaft 4 from the other end. The stator 2 is positioned and installed inside the housing 1, and the winding device 9 is also installed inside the housing 1. After assembly, the motor consists of four parts: rotor assembly, stator assembly, connecting plate 12, and handwheel 7. The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A direct-drive motor with a winding mechanism, characterized in that: The machine includes a housing (1); a stator (2) is provided in the housing (1); a rotor (3) is provided in the stator (2); the rotor (3) is connected to a hollow shaft (4); one end of the hollow shaft (4) is connected to the shaft (501) of the sewing machine body (5); the other end of the hollow shaft (4) is connected to a fixed needle core (6) and a handwheel (7); a Hall plate (8) is provided on the stator (2); a control element is provided on the Hall plate (8); a magnet (601) is provided on the fixed needle core (6); the magnet (601) is located on one side of the control element. A winding device (9) is connected to the outer casing (1); the winding device (9) includes a rotating wheel (901); the rotating wheel (901) abuts against the handwheel (7) when the winding device (9) is working.

2. A direct-drive motor with a winding device according to claim 1, characterized in that: The hollow rotating shaft (4) includes multiple stepped shaft segments; the hollow rotating shaft (4) includes a first shaft segment (401), a second shaft segment (402), a third shaft segment (403), and a fourth shaft segment (404); the rotor (3) and the fixed needle inner core (6) are both sleeved on the second shaft segment (402); the rotor (3) abuts against the first shaft segment (401); a first radial screw is connected to the fixed needle inner core (6); the first radial screw abuts against the second shaft segment (402); the handwheel (7) is sleeved on the third shaft segment (403) and the fourth shaft segment (404); a second radial screw is connected to the handwheel (7); the second radial screw abuts against the fourth shaft segment (404).

3. A direct-drive motor with a winding device according to claim 2, characterized in that: The top of the outer casing (1) is provided with a mounting sleeve (10); the mounting sleeve (10) is provided with a limiting annular step (101); the winder (9) is provided on the limiting annular step (101); the winder (9) is provided with a winder clamping screw (102); the mounting sleeve (10) is provided with a mounting sleeve threaded hole (103); the winder clamping screw (102) is connected in the mounting sleeve threaded hole (103); the winder clamping screw (102) clamps the winder (9) in the mounting sleeve (10); The top of the winder (9) is provided with a lever mounting shaft (902) and an adjustment through hole; a limiting baffle (903) is provided on one side of the adjustment through hole; a rotating rod (904) is provided in the adjustment through hole; one end of the rotating rod (904) is connected to a winding disc (905); the other end of the rotating rod (904) is connected to the rotating wheel (901); a lever (906) is hinged on the lever mounting shaft (902); the lever (906) is located on one side of the winding disc (905); The handwheel (7) has an annular boss (701) on the side near the rotating wheel (901); the annular boss (701) abuts against the rotating wheel (901).

4. A direct-drive motor with a winding device according to any one of claims 2-3, characterized in that: The fixed needle core (6) is clearance-fitted with the hollow rotating shaft (4); the fixed needle core (6) is provided with a plurality of first radial threaded holes (602); the first radial screw is connected in the first radial threaded holes (602) and abuts against the hollow rotating shaft (4); the magnet (601) is fixedly connected to the fixed needle core (6) and the magnet (601) is disposed close to the edge of the fixed needle core (6); The control element includes a fixed-needle Hall (801); the fixed-needle Hall (801) is connected to the Hall plate (8); the fixed-needle Hall (801) cooperates with the magnet (601).

5. A direct-drive motor with a winding device according to claim 4, characterized in that: The stator (2) includes a stator frame (201); the Hall plate (8) is connected to the stator frame (201); the stator needle Hall (801) is connected to the side of the Hall plate (8) away from the stator frame (201); a commutation Hall (802) is connected to the side of the Hall plate (8) away from the stator needle Hall (801); the stator frame (201) is provided with a Hall slot (202); the commutation Hall (802) is inserted into the Hall slot (202).

6. A direct-drive motor with a winding device according to claim 5, characterized in that: The outer casing (1) is provided with an annular boss (11); the stator (2) abuts against the annular boss (11); The outer casing has a keyway (111) on its annular boss (11); the stator (2) has a positioning pin (112) on its side wall; the positioning pin (112) is connected in the keyway (111); the outer casing (1) has a plurality of outer casing threaded holes (113) at its end; the stator (2) has a stator fixing screw (114); the stator fixing screw (114) is connected in the outer casing threaded hole (113); the stator fixing screw (114) presses the stator (2) into the outer casing (1); the outer casing (1) has a cable outlet (115).

7. A direct-drive motor with a winding device according to any one of claims 5-6, characterized in that: The outer shell (1) is connected to a connecting plate (12); the connecting plate (12) is provided with a convex stop (121); the outer shell (1) is provided with a concave stop (122); the convex stop (121) and the concave stop (122) cooperate; the outer shell (1) is connected to the connecting plate (12) by screws.

8. A direct-drive motor with a winding device according to claim 7, characterized in that: The connecting plate (12) is provided with a positioning groove (123) and a positioning hole (124); the sewing machine body (5) is provided with a positioning protrusion (13); the positioning protrusion (13) is located in the positioning groove (123); the hollow rotating shaft (4) is located in the positioning hole (124).

9. A direct-drive motor with a winding device according to claim 8, characterized in that: The rotating shaft (501) is provided with a fixed plane (502); the first shaft segment (401) is provided with a plurality of rotating shaft threaded holes (14); the rotating shaft threaded holes (14) are provided with rotating shaft fixing screws; the rotating shaft fixing screws abut against the fixed plane (502).

10. A direct-drive motor with a winding device according to claim 9, characterized in that: The outer casing (1) is provided with a plurality of mounting posts (15); the mounting posts (15) are provided with post thread holes (151); a wire clamp (152) is connected in the post thread holes (151).

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