Multifunctional sewing machine with multi-axis adjustment structure

Abstract

This invention relates to the field of sewing machine technology and discloses a multi-functional sewing machine with a multi-axis adjustment structure. The machine includes a worktable, an X-axis slide rail mounted on the top of the worktable, a Y-axis slide rail slidably connected within the X-axis slide rail, and a mounting frame slidably connected within the Y-axis slide rail. A cylinder is mounted on the top of the mounting frame, and a mounting frame is fixedly connected to the output end of the cylinder. A rotating shaft is rotatably connected within the mounting frame, a worm gear is fixedly connected to the outer wall of the rotating shaft, and a sewing head is fixedly connected to the bottom of the rotating shaft. A worm gear is meshed with the toothed end of the worm gear, and a connecting shaft is fixedly connected to the inner wall of the worm gear. A servo motor is mounted on one side of the mounting frame. The sewing head moves across its entire range through the linkage of the X-axis and Y-axis slide rails. Combined with the Z-axis adjustment of the cylinder and the worm gear transmission of the servo motor, the sewing head can be adjusted to any angle and posture, achieving multi-dimensional precise positioning and adapting to various sewing scenarios.

Description

Technical Field

[0001] This invention relates to the field of sewing machine technology, specifically to a multi-functional sewing machine with a multi-axis adjustment structure. Background Technology

[0002] A sewing machine is a specialized processing device that uses one or more sewing threads to form one or more stitches on a fabric, allowing one or more layers of fabric to interweave and sew together. It can reliably complete sewing operations on various products such as cotton, linen, silk, wool, synthetic fiber fabrics, as well as leather, plastics, and paper. It is widely used in many light industrial manufacturing fields such as garment processing, home textiles, and leather goods production. In actual production and processing, different fabrics, different sewing tracks, and processing requirements such as corner beveling place high demands on the processing position and sewing posture of the sewing machine head. Therefore, a multi-functional sewing machine with a multi-axis adjustment structure is needed.

[0003] Existing sewing machines mainly rely on the main shaft transmission mechanism inside the machine head to drive the needle to perform high-speed up and down reciprocating piercing motion. At the same time, the internal fabric feeding mechanism drives the fabric to move intermittently step by step. The needle and thread penetrate the fabric and work together with the rotary hook to form a lockstitch, thereby realizing the sewing and stitching operation of the fabric.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that the existing sewing machine head lacks an integrated adjustment structure that combines multi-axis displacement with circumferential angle adjustment. The sewing posture of the machine head cannot be adjusted autonomously, and when processing oblique seams and corner seams, it relies entirely on manual movement and rotation of the fabric. This results in poor positioning accuracy, easy occurrence of stitch deviation and fabric wrinkles, and difficulty in adapting to automated sewing processing of fabrics of different widths, leading to low production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-functional sewing machine with a multi-axis adjustment structure, solving the problem that existing sewing machine heads lack an integrated adjustment structure that combines multi-axis displacement with circumferential angle adjustment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional sewing machine with a multi-axis adjustment structure, comprising a worktable, an X-axis slide rail mounted on the top of the worktable, a Y-axis slide rail slidably connected within the X-axis slide rail, a mounting frame slidably connected within the Y-axis slide rail, a cylinder mounted on the top of the mounting frame, a mounting frame fixedly connected to the output end of the cylinder, a rotating shaft rotatably connected within the mounting frame, a worm gear fixedly connected to the outer wall of the rotating shaft, a machine head fixedly connected to the bottom of the rotating shaft, a worm gear meshing with the toothed end of the worm gear, a connecting shaft fixedly connected to the inner wall of the worm gear, a servo motor mounted on one side of the mounting frame, one end of the connecting shaft fixedly connected to the output end of the servo motor, a sewing needle and a presser foot respectively mounted on the output end of the machine head, and an auxiliary component for grinding the sewing needle mounted on one side of the presser foot.

[0007] By adopting the above technical solution, the drive module inside the X-axis slide rail drives the Y-axis slide rail to make precise linear displacement along the X-axis of the worktable. At the same time, the drive component inside the Y-axis slide rail synchronously drives the mounting frame to complete the lateral feed along the Y-axis, driving the sewing head to complete the full-range planar movement. In conjunction with the cylinder drive, the mounting frame completes the Z-axis height adjustment. Then, the servo motor drives the worm gear transmission to drive the sewing head to complete the circumferential posture adjustment at any angle. The built-in drive mechanism of the sewing head drives the sewing needle to reciprocate at high speed and complete the sewing operation in conjunction with the presser foot feeding. This achieves multi-dimensional precise position and posture adjustment of the sewing needle and presser foot, improves the automation level and scene adaptability of the sewing machine, reduces the threshold of manual operation, improves sewing accuracy and production efficiency, and can adapt to various processing scenarios with different widths and sewing angles.

[0008] Preferably, the auxiliary component includes a support plate, both sides of which are fixedly connected to one side of the presser foot. A slide rod is slidably connected inside the support plate, and a mounting bracket is fixedly connected to one end of the slide rod. A rotating shaft is rotatably connected inside the mounting bracket, and a grinding roller is fixedly connected to the outer wall of the rotating shaft. The outer circular surface of the grinding roller is in contact with and abuts against the cutting outer wall of the sewing needle tip.

[0009] Preferably, a connecting plate is fixedly connected to the other end of the slide rod, and a spring is fixedly connected to the inner wall of the connecting plate. One end of the spring is fixedly connected to one side of the support plate, and the inner wall of the spring is sleeved on the outer wall of the slide rod.

[0010] Preferably, a support shaft is fixedly connected to the top of the mounting frame, and a thread spool is fixedly connected to the outer wall of the support shaft. The thread spool continuously rotates and unwinds around the support shaft as the sewing thread travels.

[0011] Preferably, a support frame is fixedly connected to one side of the mounting frame, a movable rod is slidably connected to the top of the support frame, a connecting frame is fixedly connected to one end of the movable rod, an auxiliary roller is rotatably connected inside the connecting frame, the outer wall of the auxiliary roller is fitted against the outer wall of the coil, and a second spring is fixedly connected to the opposite side of the support frame and the connecting frame, the inner wall of the second spring is sleeved on the outer wall of the movable rod.

[0012] Preferably, a fixing rod is fixedly connected to one side of the support frame, an electrode plate is installed on the outer wall of the fixing rod, a connecting block is fixedly connected to the other end of the movable rod, an electrode sheet is installed on the outer wall of the connecting block, the bottom of the electrode sheet is slidably connected to the inside of the electrode plate, and an indicator light is installed on one side of the connecting frame.

[0013] Preferably, a fixed plate is fixedly connected to the bottom of the workbench, an electric push rod is installed on the top of the fixed plate, a movable plate is fixedly connected to the output end of the electric push rod, and support rods are symmetrically fixedly connected to both ends of the movable plate. The outer wall of the support rod is slidably inserted through the top of the workbench, and a pressing plate is fixedly connected to the top of both ends of the support rod. The pressing plate is used to press down and fix the fabric to be sewn on the surface of the workbench.

[0014] Preferably, a control panel is fixedly connected to one side of the workbench, and the control panel is used to operate and control the electrical components inside the device.

[0015] Preferably, the electrode plate, electrode sheet, and indicator light are electrically connected to the control panel. The electrode plate and electrode sheet are electrically connected to the control panel via signal lines for signal transmission. The control panel is electrically connected to the indicator light to control the indicator light to light up and trigger an alarm after receiving the detection signal.

[0016] Preferably, the bottom of the pressing plate is provided with an elastic buffer layer, which provides flexible contact when the pressing plate presses the fabric on the worktable.

[0017] This invention provides a multi-functional sewing machine with a multi-axis adjustment structure. It has the following advantages: 1. This invention uses a drive module inside the X-axis slide rail to drive the Y-axis slide rail to make precise linear displacement along the X-axis of the worktable. At the same time, the drive component inside the Y-axis slide rail synchronously drives the mounting frame to complete lateral feed along the Y-axis, driving the sewing head to complete full-range planar movement. In conjunction with the cylinder-driven mounting frame, the height is adjusted in the Z-axis. Then, a servo motor drives a worm gear transmission to drive the sewing head to complete circumferential posture adjustment at any angle. The built-in drive mechanism in the sewing head drives the sewing needle to reciprocate at high speed to complete the sewing operation in conjunction with the presser foot feeding. This achieves multi-dimensional precise position and posture adjustment of the sewing needle and presser foot, improves the automation level and scene adaptability of the sewing machine, reduces the threshold of manual operation, improves sewing accuracy and production efficiency, and can be adapted to various processing scenarios with different widths and sewing angles.

[0018] 2. In this invention, the continuous pre-tension of spring one pushes the connecting plate, causing the slide rod to slide along the support plate towards the sewing needle side. This ensures that the grinding roller is always elastically attached to the outer wall of the sewing needle tip. During sewing, the reciprocating movement of the needle generates relative friction with the grinding roller, causing the grinding roller to rotate and complete uniform grinding. At the same time, spring one is used to compensate for the wear of the grinding roller itself in real time, ensuring that the contact pressure between the grinding roller and the sewing needle is stable throughout the process. This achieves the grinding operation of the sewing needle, continuously maintaining the sharpness of the sewing needle tip, avoiding fabric punctures, pilling, skipped stitches, and needle breakage caused by needle tip dulling, and effectively extending the overall service life of the sewing needle.

[0019] 3. In this invention, the movable rod moves synchronously with the shrinking outer diameter of the spool during the thread consumption process, causing the electrode plate to slide along the guide groove of the electrode plate to maintain continuous conductivity. The control panel receives the conductivity signal in real time to determine the remaining thread status. When the thread is about to be exhausted, the electrode plate completely separates from the conductive area of ​​the electrode plate, triggering a disconnection signal. After receiving the signal, the control panel immediately drives the indicator light to light up, triggering a remaining thread alarm. This achieves real-time dynamic monitoring of the remaining thread on the spool throughout the entire process, and issues an early warning before the thread is completely exhausted, avoiding sudden thread breakage and machine stoppage during sewing operations, and improving the stability of continuous sewing operations. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the worktable of the present invention; Figure 3 This is a schematic diagram of the overall structure of the mounting frame of the present invention; Figure 4 This is a partial structural diagram of the mounting frame of the present invention; Figure 5 This is a schematic diagram of the internal structure of the mounting frame of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the wire roll balance monitoring status change structure of the present invention.

[0021] The components include: 1. Worktable; 2. X-axis slide rail; 201. Y-axis slide rail; 202. Mounting frame; 203. Cylinder; 204. Mounting frame; 205. Rotating shaft; 206. Worm gear; 207. Machine head; 208. Worm; 209. Connecting shaft; 210. Servo motor; 211. Sewing needle; 212. Presser foot; 3. Support plate; 301. Slide rod; 302. Mounting frame; 303. Rotating shaft; 304. Grinding roller; 30 5. Connecting plate; 306. Spring 1; 4. Support shaft; 401. Wire coil; 5. Support frame; 501. Movable rod; 502. Connecting frame; 503. Auxiliary roller; 504. Spring 2; 6. Fixed rod; 601. Electrode plate; 602. Connecting block; 603. Electrode sheet; 604. Indicator light; 7. Fixed plate; 701. Electric push rod; 702. Movable plate; 703. Support rod; 704. Pressing plate; 8. Control panel. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 6 This invention provides a multi-functional sewing machine with a multi-axis adjustment structure, including a worktable 1. An X-axis slide rail 2 is mounted on the top of the worktable 1. A Y-axis slide rail 201 is slidably connected inside the X-axis slide rail 2. A mounting frame 202 is slidably connected inside the Y-axis slide rail 201. A cylinder 203 is mounted on the top of the mounting frame 202. A mounting frame 204 is fixedly connected to the output end of the cylinder 203. A rotating shaft 205 is rotatably connected inside the mounting frame 204. A worm gear 2 is fixedly connected to the outer wall of the rotating shaft 205. 06. The bottom of the rotating shaft 205 is fixedly connected to the machine head 207. The tooth end of the worm gear 206 is meshed with the worm 208. The inner wall of the worm 208 is fixedly connected to the connecting shaft 209. A servo motor 210 is installed on one side of the mounting frame 204. One end of the connecting shaft 209 is fixedly connected to the output end of the servo motor 210. A sewing needle 211 and a presser foot 212 are respectively installed at the output end of the machine head 207. An auxiliary component for grinding the sewing needle 211 is installed on one side of the presser foot 212.

[0024] Specifically, before operation, the operator can issue a running command to the machine through the control panel 8. After the fabric is pressed, the drive module inside the X-axis slide rail 2 receives the signal and drives the Y-axis slide rail 201 to make a precise linear displacement along the X direction of the worktable 1. At the same time, the drive component inside the Y-axis slide rail 201 synchronously drives the mounting frame 202 to complete the lateral feed along the Y-axis. The stroke parameters of the two sets of slide rails can be preset in the control panel 8 according to the width of the fabric to be processed, so that the machine head 207 can move in the entire area of ​​the worktable 1. At the same time, the cylinder 203 synchronously receives the control signal and drives the mounting frame 204 connected to the drive output end to complete the lifting action along the Z-axis, adjusting the vertical distance between the machine head 207 and the fabric to be sewn, so that the presser foot 212 presses the top of the fabric. After the servo motor 210 starts, it drives the connecting shaft 209 to rotate synchronously, thereby driving the worm gear 208 to mesh with the transmission worm wheel 206. The rotating shaft 205 rotates circumferentially at any angle within the mounting frame 204, ultimately driving the sewing head 207 to adjust its sewing angle. During sewing, the sewing head 207 has a built-in sewing drive mechanism. After adjustment, the sewing head 207 drives the sewing needle 211 to perform high-speed up-and-down reciprocating piercing motion, while simultaneously cooperating with the presser foot 212 to press and feed the fabric, thus achieving the sewing operation. This enables multi-dimensional and precise position and posture adjustment of the sewing needle 211 and presser foot 212, improving the automation level and scene adaptability of the sewing machine, reducing the threshold of manual operation, and improving sewing accuracy and production efficiency. It can adapt to various processing scenarios with different widths and sewing angles. Through auxiliary components, the sewing needle 211 is polished, continuously ensuring the sharpness of the needle tip and avoiding fabric piercing, fuzzing, skipped stitches, and needle breakage caused by blunt needle tip, thus extending the service life of the sewing needle 211.

[0025] Please see the appendix Figure 4 - Appendix Figure 6 The auxiliary components include a support plate 3, with both sides of the support plate 3 fixedly connected to one side of the presser foot 212. A slide rod 301 is slidably connected inside the support plate 3. A mounting bracket 302 is fixedly connected to one end of the slide rod 301. A rotating shaft 303 is rotatably connected inside the mounting bracket 302. A grinding roller 304 is fixedly connected to the outer wall of the rotating shaft 303. The outer circular surface of the grinding roller 304 fits against the cutting outer wall of the needle tip of the sewing needle 211. The other end of the slide rod 301 is fixedly connected to a connecting plate 305. A spring 306 is fixedly connected to the inner wall of the connecting plate 305. One end of the spring 306 is fixedly connected to one side of the support plate 3. The inner wall of the spring 306 is sleeved on the outer wall of the slide rod 301.

[0026] Specifically, under the pre-tightening force of spring 306, connecting plate 305 pushes slide rod 301 along support plate 3 towards sewing needle 211. Mounting bracket 302 connected to the end of slide rod 301 simultaneously drives rotating shaft 303 and grinding roller 304 to contact the outer wall of sewing needle tip 211. The outer surface of grinding roller 304 always maintains an elastic contact with the cutting surface of sewing needle tip 211. When sewing needle 211 performs multiple piercing operations, and the sewing head 207 drives sewing needle 211 to move back and forth slightly for sewing operations, it interacts with the contacted grinding roller 304. Compared to sliding friction, the grinding roller 304 drives the rotating shaft 303 to rotate on the mounting frame 302 due to friction, thereby uniformly grinding the outer wall of the needle tip of the sewing needle 211. During the grinding process, the spring 306 can compensate for the wear of the grinding roller 304 in real time, ensuring that the contact pressure between the grinding roller 304 and the sewing needle 211 remains stable. This achieves the grinding operation of the sewing needle 211, continuously ensuring the sharpness of the needle tip of the sewing needle 211, avoiding fabric punctures, pilling, skipped stitches, and needle breakage caused by needle tip dulling, and extending the service life of the sewing needle 211.

[0027] Please see the appendix Figure 3 Appendix Figure 4 Appendix Figure 7 A support shaft 4 is fixedly connected to the top of the mounting frame 202, and a thread roll 401 is fixedly connected to the outer wall of the support shaft 4. The thread roll 401 continuously rotates around the support shaft 4 to release thread as the sewing thread travels. A support frame 5 is fixedly connected to one side of the mounting frame 202. A movable rod 501 is slidably connected to the top of the support frame 5. A connecting frame 502 is fixedly connected to one end of the movable rod 501. An auxiliary roller 503 is rotatably connected inside the connecting frame 502. The outer wall of the auxiliary roller 503 is fitted against the outer wall of the coil 401. A second spring 504 is fixedly connected to the opposite side of the support frame 5 and the connecting frame 502. The inner wall of the second spring 504 is sleeved on the outer wall of the movable rod 501. A fixed rod 6 is fixedly connected to one side of the support frame 5. An electrode plate 601 is installed on the outer wall of the fixed rod 6. A connecting block 602 is fixedly connected to the other end of the movable rod 501. An electrode sheet 603 is installed on the outer wall of the connecting block 602. The bottom of the electrode sheet 603 is slidably connected to the inside of the electrode plate 601. An indicator light 604 is installed on one side of the connecting frame 502. Electrode plate 601, electrode sheet 603 and indicator light 604 are electrically connected to control panel 8. Electrode plate 601 and electrode sheet 603 are electrically connected to control panel 8 via signal lines for signal transmission. Control panel 8 is electrically connected to indicator light 604 to control indicator light 604 to light up and alarm after receiving detection signal.

[0028] Specifically, during the sewing process, the sewing thread, guided by the thread head 207, pulls the thread roll 401 to rotate continuously around the support shaft 4, releasing the thread. As the remaining thread on the thread roll 401 gradually decreases, the outer diameter of the thread roll 401 shrinks synchronously. Under the elastic thrust of the second spring 504, the connecting frame 502 pushes the movable rod 501 to slide continuously along the support frame 5 towards the center of the thread roll 401, keeping the auxiliary roller 503 in close contact with the outer surface of the thread roll 401. The auxiliary roller 503 rotates synchronously inside the connecting frame 502 as the thread roll 401 rotates, applying a constant preload to the outer surface of the thread roll 401 to prevent the thread roll 401 from becoming loose or skipping. As the remaining wire in the coil 401 is gradually consumed, the connecting block 602 moves synchronously toward the coil 401 along with the movable rod 501, causing the electrode plate 603 to slide continuously along the guide groove of the electrode plate 601. At this time, the electrode plate 603 always maintains contact and conduction with the electrode plate 601, continuously transmitting a conduction signal to the control panel 8. The control panel 8 determines that there is still remaining wire in the coil 401. When the thread in the spool 401 is about to be completely depleted, the outer diameter of the spool 401 shrinks to its minimum value, the auxiliary roller 503 moves to the center position of the spool 401, and drives the electrode plate 603 to slide completely out of the conductive area of ​​the electrode plate 601. The electrical signal between the electrode plate 603 and the electrode plate 601 is completely disconnected. After receiving the feedback of the signal disconnection, the control panel 8 immediately sends a lighting command to the indicator light 604 to trigger an alarm for insufficient thread, thereby realizing real-time monitoring of the remaining thread in the spool 401. The indicator light 604 is triggered in advance before the thread is exhausted, avoiding sudden thread breakage during the sewing operation and improving the stability of continuous sewing operations.

[0029] Please see the appendix Figure 1 Appendix Figure 2 A fixed plate 7 is fixedly connected to the bottom of the workbench 1. An electric push rod 701 is installed on the top of the fixed plate 7. A movable plate 702 is fixedly connected to the output end of the electric push rod 701. Support rods 703 are symmetrically fixedly connected to both ends of the movable plate 702. The outer wall of the support rod 703 is slidably installed through the top of the workbench 1. Pressing plates 704 are fixedly connected to the top of both ends of the support rods 703. The pressing plates 704 are used to press down and fix the fabric to be sewn on the surface of the workbench 1. The bottom of the pressing plate 704 is provided with an elastic buffer layer, which provides flexible contact when the pressing plate 704 presses the fabric on the worktable 1.

[0030] Specifically, the fabric to be sewn is first laid flat on the top working area of ​​the workbench 1. The electric push rod 701 receives the fixing command from the control panel 8. The output end of the electric push rod 701 drives the movable plate 702 to move downward in the vertical direction. The support rods 703, which are symmetrically fixed at both ends of the movable plate 702, slide downward along the workbench 1, driving the pressing plate 704 to move closer to the surface of the workbench 1. Finally, the elastic buffer layer at the bottom of the pressing plate 704 makes flexible contact with the surface of the fabric to be sewn, pressing and fixing both ends of the fabric to be sewn, thus preventing the fabric from shifting during the sewing process. When a single sewing operation is completed, the output end of the electric push rod 701 extends, driving the movable plate 702 to move upward, and simultaneously driving the support rods 703 to lift the pressing plate 704 upward, releasing the pressing and fixing of the current fabric. The operator can then adjust the position of the fabric to proceed with the next sewing operation. This process avoids wrinkles and shifts in the fabric during the sewing process, improves the fabric positioning accuracy of the sewing operation, and adapts to the sewing and fixing needs of various special fabrics such as thin and elastic fabrics.

[0031] Please see the appendix Figure 1 A control panel 8 is fixedly connected to one side of the workbench 1. The control panel 8 is used to control the operation of the electrical components inside the device.

[0032] Specifically, during operation, the operating parameters and action commands of the electrical components in the sewing machine are centrally issued and their status collected through the control panel 8. The operator presets the travel of the X-axis slide rail 2 and Y-axis slide rail 201 through the touch interface of the control panel 8, adjusts the lifting height of the cylinder 203 and the rotation angle of the servo motor 210, and simultaneously receives the remaining signal of the thread spool 401 transmitted by the electrode plate 601 and electrode sheet 603 in real time, and synchronously controls the lighting status of the indicator light 604. All operating data can be viewed in real time on the display interface of the control panel 8, realizing centralized operation and status monitoring of electrical components. The operation process is intuitive and simple, eliminating the need to debug individual components separately, thus reducing the difficulty of operating the equipment.

[0033] Work process: Before operation, the operator centrally controls the sewing machine through the control panel 8. First, the fabric to be sewn is laid flat on the top working area of ​​the workbench 1. The electric push rod 701 receives the control command and drives the movable plate 702 connected to the output end to move downward in the vertical direction. This causes the movable plate 702 and the support rod 703 to slide downward along the workbench 1, and simultaneously drives the pressing plate 704 to move downward, pressing and fixing the two ends of the fabric to be sewn. After the fabric is pressed, the drive module inside the X-axis slide rail 2 receives the signal and drives the Y-axis slide rail 201 to make a precise linear displacement along the X direction of the worktable 1. At the same time, the drive component inside the Y-axis slide rail 201 drives the mounting frame 202 to complete the lateral feed along the Y-axis. The two sets of slide rails move according to the preset stroke parameters, driving the machine head 207 to move to the corresponding work position in the work area. Then, the cylinder 203 drives the mounting frame 204 to rise and fall along the Z-axis, adjusting the vertical distance between the machine head 207 and the fabric, so that the presser foot 212 presses against the top of the fabric. The servo motor 210 starts and drives the connecting shaft 209 to rotate, driving the worm gear 208 to mesh with the transmission worm wheel 206. The worm wheel 206 drives the rotating shaft 205 to complete the circumferential rotation at any angle within the mounting frame 204, driving the machine head 207 to complete the sewing posture adjustment. During sewing, the machine head 207 drives the sewing needle 211 to pierce the fabric at high speed up and down. At the same time, under the pre-tightening force of the spring 306, the slide bar 301 drives the grinding roller 304 to always elastically fit the needle tip of the sewing needle 211, and completes the grinding of the needle tip as the needle tip moves back and forth. During the sewing process, the thread spool 401 rotates around the support shaft 4 to release the thread. The spring 2 504 pushes the auxiliary roller 503 to always be in contact with the outer wall of the thread spool 401. When the remaining amount of the thread spool 401 decreases, the movable rod 501 drives the electrode plate 603 to slide along the electrode plate 601. When the thread is exhausted, the electrode plate 603 disengages from the electrode plate 601, and the control panel 8 triggers the indicator light 604 to light up and alarm.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional sewing machine with a multi-axis adjustment structure, comprising a worktable (1), characterized in that: The workbench (1) is equipped with an X-axis slide rail (2) on its top. A Y-axis slide rail (201) is slidably connected inside the X-axis slide rail (2). A mounting frame (202) is slidably connected inside the Y-axis slide rail (201). A cylinder (203) is mounted on the top of the mounting frame (202). A mounting frame (204) is fixedly connected to the output end of the cylinder (203). A rotating shaft (205) is rotatably connected inside the mounting frame (204). A worm gear (206) is fixedly connected to the outer wall of the rotating shaft (205). The bottom of the rotating shaft (205) is fixedly connected to the bottom wall of the rotating shaft (205). A fixed connection is provided for the machine head (207), and the tooth end of the worm gear (206) is meshed with a worm (208). A connecting shaft (209) is fixedly connected to the inner wall of the worm (208). A servo motor (210) is installed on one side of the mounting frame (204), and one end of the connecting shaft (209) is fixedly connected to the output end of the servo motor (210). A sewing needle (211) and a presser foot (212) are respectively installed at the output end of the machine head (207). An auxiliary component for grinding the sewing needle (211) is installed on one side of the presser foot (212).

2. The multi-functional sewing machine with a multi-axis adjustment structure according to claim 1, characterized in that: The auxiliary component includes a support plate (3), both sides of which are fixedly connected to one side of the presser foot (212). A slide rod (301) is slidably connected inside the support plate (3). A mounting bracket (302) is fixedly connected to one end of the slide rod (301). A rotating shaft (303) is rotatably connected inside the mounting bracket (302). A grinding roller (304) is fixedly connected to the outer wall of the rotating shaft (303). The outer circular surface of the grinding roller (304) is in contact with and abuts against the cutting outer wall of the needle tip of the sewing needle (211).

3. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 2, characterized in that: The other end of the slide rod (301) is fixedly connected to a connecting plate (305), and a spring (306) is fixedly connected to the inner wall of the connecting plate (305). One end of the spring (306) is fixedly connected to one side of the support plate (3), and the inner wall of the spring (306) is sleeved on the outer wall of the slide rod (301).

4. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 1, characterized in that: The top of the mounting frame (202) is fixedly connected to a support shaft (4), and a thread roll (401) is fixedly connected to the outer wall of the support shaft (4). The thread roll (401) rotates and releases thread around the support shaft (4) as the sewing thread travels.

5. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 4, characterized in that: A support frame (5) is fixedly connected to one side of the mounting frame (202). A movable rod (501) is slidably connected to the top of the support frame (5). A connecting frame (502) is fixedly connected to one end of the movable rod (501). An auxiliary roller (503) is rotatably connected inside the connecting frame (502). The outer wall of the auxiliary roller (503) is attached to the outer wall of the coil (401). A second spring (504) is fixedly connected to the opposite side of the support frame (5) and the connecting frame (502). The inner wall of the second spring (504) is sleeved on the outer wall of the movable rod (501).

6. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 5, characterized in that: A fixed rod (6) is fixedly connected to one side of the support frame (5). An electrode plate (601) is installed on the outer wall of the fixed rod (6). A connecting block (602) is fixedly connected to the other end of the movable rod (501). An electrode sheet (603) is installed on the outer wall of the connecting block (602). The bottom of the electrode sheet (603) is slidably connected to the inside of the electrode plate (601). An indicator light (604) is installed on one side of the connecting frame (502).

7. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 1, characterized in that: A fixed plate (7) is fixedly connected to the bottom of the workbench (1). An electric push rod (701) is installed on the top of the fixed plate (7). A movable plate (702) is fixedly connected to the output end of the electric push rod (701). Support rods (703) are symmetrically fixedly connected to both ends of the movable plate (702). The outer wall of the support rod (703) is slidably connected through the top of the workbench (1). Pressing plates (704) are fixedly connected to the top of both ends of the support rod (703). The pressing plates (704) are used to press down and fix the fabric to be sewn on the surface of the workbench (1).

8. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 1, characterized in that: A control panel (8) is fixedly connected to one side of the workbench (1). The control panel (8) is used to control the operation of the electrical components inside the device.

9. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 6, characterized in that: The electrode plate (601), electrode sheet (603), and indicator light (604) are electrically connected to the control panel (8). The electrode plate (601) and electrode sheet (603) are electrically connected to the control panel (8) via signal lines for signal transmission. The control panel (8) is electrically connected to the indicator light (604) to control the indicator light (604) to light up and alarm after receiving the detection signal.

10. A multi-functional sewing machine with a multi-axis adjustment structure according to claim 7, characterized in that: The bottom of the pressing plate (704) is provided with an elastic buffer layer, which is used to provide flexible contact when the pressing plate (704) presses the fabric on the worktable (1).

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