A control method of a bird nest preventing wire striking device

Abstract

The application provides a control method of a bird nest preventing thread striking device, which is applied to a sewing machine; the sewing machine comprises the bird nest preventing thread striking device, a main shaft and a main thread holder, and a thread passes through the bird nest preventing thread striking device and then passes through the main thread holder to reach a subsequent component; the thread striking speed of the bird nest preventing thread striking device and the rotating speed of the main shaft are obtained, and the thread releasing end time of the main thread holder is set according to the thread striking speed of the bird nest preventing thread striking device and the rotating speed of the main shaft, so that the thread striking of the bird nest preventing thread striking device is completed and the thread releasing of the main thread holder is ended. The control system detects the thread striking speed of the thread striking driving component and the rotating speed of the main shaft, the control system sets the thread releasing time of the main thread holder according to the thread striking speed of the thread striking driving component and the rotating speed of the main shaft, when the thread striking of the thread striking driving component is ended, the thread releasing time of the main thread holder is reached, the thread releasing of the main thread holder is immediately ended, and the possibility of the thread pulling rod pulling the thread from the thread frame is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of sewing machine equipment control methods, and in particular to a control method for an anti-bird nest stitching device. Background Technology

[0002] When a computerized flatbed sewing machine starts sewing, a clump of bird's nest-shaped thread will appear on the reverse side of the fabric. Factories (mid-to-high-end customers) that have certain requirements for sewing quality require that the thread ends be cleaned up after sewing. This is especially true for clothing made of thin, elastic fabrics, where the thinner the fabric, the more sensitive it is to the bird's nest pattern.

[0003] Currently, most garment manufacturers rely on manual trimming, with some adding anti-bird nest devices for removal. However, manual thread removal suffers from numerous incomplete removals and is time-consuming, requiring multiple cleaning steps—from sewing machine operators to inspection teams and final stages—resulting in high production costs. Our company discloses an anti-bird nest stitching device and sewing machine, comprising: an auxiliary thread clamp; a stitching plate, the connecting end of which is connected to the auxiliary thread clamp, and the stitching end of the stitching plate can rotate relative to the auxiliary thread clamp; a stitching drive assembly, located on one side of the auxiliary thread clamp, and having an axially reciprocating stitching core shaft; and a connecting rod positioned between the stitching plate and the stitching drive assembly, one end of which is hinged to the stitching core shaft, and the other end hinged to the stitching plate, so that the axial movement of the stitching core shaft drives the stitching end of the stitching plate to swing.

[0004] The aforementioned anti-bird nest stitching device improves the problem of bird nests appearing during the initial stitching to some extent. However, while the speed of the stitching electromagnet remains constant under a constant output voltage, the sewing machine's rotation speed is variable, meaning the speed of the take-up lever's up-and-down movement varies. When the sewing machine is sewing at high speed, during the time the stitching electromagnet starts stitching and ends, the take-up lever has already completed the lowering and raising stages of thread release. The higher the sewing machine's rotation speed, the higher the take-up lever rises. Because the main thread clamp only releases the thread after the stitching electromagnet finishes stitching, the existing technology sets the main thread clamp's release time relatively late, almost close to the moment the take-up lever finishes taking the thread, to ensure the anti-bird nest device operates normally when the sewing machine is running at high speed. However, when sewing machines are sewing thick materials at low speeds, the thread-beating solenoid may have already completed the thread-beating action during the descent of the take-up lever. During most of the take-up time, the main thread clamp remains in a loose state, especially when the rotary hook passes through the maximum amount of dotted thread. The tension of the top thread is relatively large, and the clamping force of the thread clamping solenoid relying solely on the auxiliary thread clamp is insufficient. This will cause the thread to be pulled out from the thread frame when the take-up lever rises, resulting in a weakening of the anti-bird's nest effect. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a control method for an anti-bird nest stitching device, which solves the problem that the speed of the stitching electromagnet is constant in the prior art, but the speed of the sewing machine is unpredictable, which leads to a weakening of the anti-bird nest effect.

[0006] To achieve the above and other related objectives, the present invention provides a control method for an anti-bird nest stitching device, applied to a sewing machine; the sewing machine includes an anti-bird nest stitching device, a main shaft, and a main thread clamp; the top thread passes through the anti-bird nest stitching device and then through the main thread clamp to the subsequent components; the stitching speed of the anti-bird nest stitching device and the rotational speed of the main shaft are obtained, and the thread release end time of the main thread clamp is set according to the stitching speed of the anti-bird nest stitching device and the rotational speed of the main shaft, so that when the anti-bird nest stitching device completes stitching, the main thread clamp ends the thread release.

[0007] Preferably, the sewing machine further includes a sewing head, a needle, and a control system. The main shaft is rotatably mounted in the sewing head, and the needle is connected to the main shaft for transmission, and the needle reciprocates up and down. The anti-bird nest stitching device and the main thread clamp are both mounted on the sewing head. The top thread passes through the anti-bird nest stitching device and then through the main thread clamp to be threaded onto the needle. The control system is communicatively connected to the anti-bird nest stitching device, the drive source of the main shaft, and the drive source of the main thread clamp.

[0008] Preferably, the anti-bird nest wire-punching device includes an auxiliary wire clamp, a wire-punching plate, a wire-punching drive assembly, and a connecting rod. The connecting end of the wire-punching plate is connected to the auxiliary wire clamp, and the wire-punching end of the wire-punching plate can rotate relative to the auxiliary wire clamp. The wire-punching drive assembly is disposed on one side of the auxiliary wire clamp, and the wire-punching drive assembly has a wire-punching iron core shaft that can move axially back and forth. The connecting rod is disposed between the wire-punching plate and the wire-punching drive assembly. One end of the connecting rod is hinged to the wire-punching iron core shaft, and the other end is hinged to the wire-punching plate, so that the wire-punching end of the wire-punching plate can swing through the axial movement of the wire-punching iron core shaft.

[0009] Preferably, the auxiliary wire clamp includes a wire clamping electromagnet, wire clamping plates, wire clamping springs, adjusting nuts, and adjusting knobs. The wire clamping electromagnet includes a base, a wire clamping cover plate, and a wire clamping core shaft. The wire clamping cover plate is fixedly connected to one end of the base. The wire clamping core shaft is disposed inside the base, with one end extending axially and penetrating the wire clamping cover plate. The adjusting knob is threadedly connected to one end of the wire clamping core shaft. Two wire clamping plates are sleeved on the wire clamping core shaft, facing each other and axially movable. The wire clamping springs and adjusting nuts are disposed between the adjusting knob and the wire clamping plates, and the adjusting nut is threadedly connected to the wire clamping core shaft. The wire clamping electromagnet is electrically connected to the control system.

[0010] Preferably, a wire guide plate is provided between the wire clamping cover plate and the wire clamping piece, and the top end of the wire guide plate is sleeved and installed on the wire clamping cover plate.

[0011] Preferably, the wire guide plate has two first wire-passing holes, and the wire punch plate has a second wire-passing hole on the side away from the connecting rod, with the second wire-passing hole located between the two first wire-passing holes.

[0012] Preferably, the wire bonding drive assembly includes a wire bonding electromagnet, a return spring, and a retaining ring. The wire bonding electromagnet includes a housing and a wire bonding core shaft. The wire bonding core shaft is installed inside the housing, and one end of the wire bonding core shaft extends axially and is hinged to one end of a connecting rod after passing through the housing. The retaining ring is installed on the wire bonding core shaft, and the return spring is installed between the retaining ring and the housing. The wire bonding electromagnet is electrically connected to the control system.

[0013] Preferably, the machine head is also provided with an electronic thread clamp, and the thread passes sequentially between the two clamping plates of the auxiliary thread clamp, through the first threading hole on the thread guide plate, through the second threading hole on the thread punch plate, through the main thread clamp, and through the electronic thread clamp before being threaded onto the machine needle.

[0014] Preferably, the control method for the anti-bird nest wire-punching device includes the following steps:

[0015] S1: Pass the thread sequentially between the two clamping plates of the auxiliary thread clamp, through the first threading hole on the thread plate, through the second threading hole on the punching plate, through the main thread clamp, through the electronic thread clamp, and then onto the needle.

[0016] S2: Start the sewing machine and begin the first stitch. The electronic thread tensioner brings the top thread under the needle plate.

[0017] S2: After the second stitch after the start of the sewing, the take-up lever moves downward to form a loose top thread, the auxiliary thread clamping device attracts and clamps the top thread, the main thread clamping device loosens the thread, and then the thread-hitting drive assembly drives the thread-hitting plate to swing through the connecting rod;

[0018] S3: During the retraction process of the take-up lever, the main wire clamp ends the wire release, and the wire drive component and auxiliary wire clamp hold the take-up lever until the take-up lever finishes retracting the wire. The take-up lever will then pull back the excess wire at the needle.

[0019] S4: After maintaining a stitch length, the thread drive assembly is de-energized, the connecting rod resets, and the auxiliary thread clamp is released, allowing normal sewing to resume.

[0020] Preferably, the following steps are provided before step S1:

[0021] The control system detects the wire-laying speed of the wire-laying drive assembly and the rotational speed of the spindle; based on the rotational speed of the spindle and the wire-laying speed of the wire-laying drive assembly, it controls the wire-releasing time of the main wire clamp drive source.

[0022] In step S3, when the wire bonding drive component completes the wire bonding, it coincides with the wire release time of the main wire clamp drive source, and the main wire clamp ends the wire release.

[0023] As described above, the control method for the anti-bird nest wire-knocking device of the present invention has the following beneficial effects:

[0024] The present invention relates to a control method for an anti-bird nest wire-tapping device. The control system detects the wire-tapping speed of the wire-tapping drive assembly and the rotation speed of the spindle. The control system sets the wire-releasing time of the main wire clamp based on the wire-tapping speed of the wire-tapping drive assembly and the rotation speed of the spindle. When the wire-tapping drive assembly finishes tapping, the wire-releasing time of the main wire clamp is reached, and the main wire clamp immediately stops releasing the wire, reducing the possibility of the wire take-up lever pulling the wire off the wire frame. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the sewing machine involved in the present invention;

[0026] Figure 2 This is a schematic diagram showing the connection of the wire-knocking drive assembly and the auxiliary wire clamp in the control method of the anti-bird nest wire-knocking device of the present invention.

[0027] Figure 3 This is an exploded view of the wire-knocking drive assembly and auxiliary wire clamp in the control method of the anti-bird nest wire-knocking device involved in this invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Auxiliary wire clamp; 110. Wire clamping electromagnet; 111. Base; 112. Wire clamping cover plate; 113. Wire clamping iron core shaft; 120. Wire guide plate; 130. Wire clamping plate; 140. Wire clamping spring; 150. Adjusting nut; 160. Adjusting knob; 200. Wire striking plate; 300. Wire striking drive assembly; 311. Wire striking iron core shaft; 400. Connecting rod; 500. Machine head; 600. Electronic wire clamp; 700. Main wire clamp. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0031] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0032] like Figures 1-3 As shown, the present invention provides a control method for an anti-bird nest stitching device, applied to a sewing machine; the sewing machine includes an anti-bird nest stitching device, a main shaft, and a main thread clamp 700. The top thread passes through the anti-bird nest stitching device and then through the main thread clamp 700 to be threaded onto subsequent components; the stitching speed of the anti-bird nest stitching device and the rotational speed of the main shaft are obtained, and the thread release end time of the main thread clamp 700 is set according to the stitching speed of the anti-bird nest stitching device and the rotational speed of the main shaft, so that when the anti-bird nest stitching device finishes stitching, the main thread clamp ends the thread release.

[0033] The present invention relates to a control method for an anti-bird nest thread-laying device. The control system controls the start-up time of the drive source of the main thread clamp 700 based on the spindle rotation speed and the thread-laying speed of the anti-bird nest thread-laying device. When the anti-bird nest thread-laying device completes thread-laying, it coincides with the thread-releasing time of the main thread clamp 700. The control system then activates the drive source of the main thread clamp 700, and the main thread clamp 700 stops releasing the thread. At this time, the main thread clamp 700 and the auxiliary thread clamp 100 simultaneously clamp the top thread, preventing only the auxiliary thread clamp 100 from providing clamping force to the top thread when the thread take-up lever rises, thus preventing the thread take-up lever from pulling the top thread off the frame and weakening the anti-bird nest effect.

[0034] Preferred, such as Figures 1-3 As shown, the sewing machine also includes a sewing head 500, a needle, and a control system. The main shaft is rotatably mounted in the sewing head 500. The needle is connected to the main shaft and moves up and down reciprocally. The anti-bird nest stitching device and the main thread clamp 700 are both mounted on the sewing head 500. The top thread passes through the anti-bird nest stitching device and then through the main thread clamp 700 to be threaded onto the needle. The control system is communicatively connected to the anti-bird nest stitching device, the drive source of the main shaft, and the drive source of the main thread clamp 700.

[0035] Preferred, such as Figure 2 , Figure 3As shown, the anti-bird nest wire-punching device includes an auxiliary wire clamp 100, a wire-punching plate 200, a wire-punching drive assembly 300, and a connecting rod 400. The connecting end of the wire-punching plate 200 is connected to the auxiliary wire clamp 100, and the wire-punching end of the wire-punching plate 200 can rotate relative to the auxiliary wire clamp 100. The wire-punching drive assembly 300 is disposed on one side of the auxiliary wire clamp 100, and the wire-punching drive assembly 300 has a wire-punching iron core shaft 311 that can move axially back and forth. The connecting rod 400 is disposed between the wire-punching plate 200 and the wire-punching drive assembly 300. One end of the connecting rod 400 is hinged to the wire-punching iron core shaft 311, and the other end is hinged to the wire-punching plate 200, so that the wire-punching end of the wire-punching plate 200 can swing through the axial movement of the wire-punching iron core shaft 311.

[0036] Preferred, such as Figure 3 As shown, the auxiliary wire clamp 100 includes a wire clamping electromagnet 110, wire clamping plates 130, wire clamping springs 140, adjusting nuts 150, and adjusting knobs 160. The wire clamping electromagnet 110 includes a base 111, a wire clamping cover plate 112, and a wire clamping iron core shaft 113. The wire clamping cover plate 112 is fixedly connected to one end of the base 111. The wire clamping iron core shaft 113 is disposed inside the base 111, and one end of the wire clamping iron core shaft 113 extends axially and passes through the wire clamping cover plate 112. The adjusting knob 160 is threadedly connected to one end of the wire clamping iron core shaft 113. Two wire clamping plates 130 are sleeved on the wire clamping iron core shaft 113, facing each other and axially movable. The wire clamping spring 140 and the adjusting nut 150 are disposed between the adjusting knob 160 and the wire clamping plates 130, and the adjusting nut 150 is threadedly connected to the wire clamping iron core shaft 113. The wire clamping electromagnet 110 is electrically connected to the control system.

[0037] Preferred, such as Figure 3 As shown, a wire guide plate 120 is provided between the wire clamping cover plate 112 and the wire clamping piece 130, and the top end of the wire guide plate 120 is sleeved on the wire clamping cover plate 112.

[0038] Preferred, such as Figure 3 As shown, the wire guide plate 120 has two first wire-passing holes, and the wire-punching plate 200 has a second wire-passing hole on the side away from the connecting rod 400, located between the two first wire-passing holes. In this embodiment, the two first wire-passing holes are arranged in the same vertical direction, and the second wire-passing hole is located between the two first wire-passing holes. When the wire-punching plate 200 is not swinging, the face wire passes through the first wire-passing hole, the second wire-passing hole, and the first wire-passing hole from top to bottom in sequence; when the wire-punching plate 200 swings under the action of the wire-punching drive assembly 300, the second wire-passing hole swings with the wire-punching plate 200, thereby punching the face wire passing through the second wire-passing hole.

[0039] Preferred, such as Figure 3As shown, the wire bonding drive assembly 300 includes a wire bonding electromagnet, a return spring, and a retaining ring. The wire bonding electromagnet includes a housing and a wire bonding core shaft 311. The wire bonding core shaft 311 is installed inside the housing, and one end of the wire bonding core shaft 311 extends axially and is hinged to one end of the connecting rod 400 after passing through the housing. The retaining ring is installed on the wire bonding core shaft 311, and the return spring is installed between the retaining ring and the housing. The wire bonding electromagnet is electrically connected to the control system.

[0040] Preferred, such as Figures 1-3 As shown, the machine head 500 is also equipped with an electronic thread clamp 600. The thread passes through the two clamping plates 130 of the auxiliary thread clamp 100, the first thread hole on the thread guide plate 120, the second thread hole on the thread punch plate 200, the main thread clamp 700, and the electronic thread clamp 600 in sequence before being threaded onto the machine needle.

[0041] Furthermore, in this embodiment, the structures of the anti-bird nest stitching device, the auxiliary thread clamp 100, and the electronic thread clamp 600 are all existing technologies. For details, please refer to the anti-bird nest stitching device and sewing machine in application number "202422729720.3", which will not be repeated here.

[0042] The control method for the anti-bird nest wire-knocking device involved in this invention comprises the following steps:

[0043] S1: Debugging and Setting; The control system powers the wire-laying drive assembly 300, energizing the wire-laying electromagnet and generating a magnetic field within the housing. The wire-laying core shaft 311 moves axially within the housing under the influence of this magnetic field, which then drives the wire-laying plate 200 to swing via the connecting rod 400. During the swinging process of the wire-laying electromagnet driving the wire-laying plate 200, the wire-laying speed of the electromagnet is detected and saved. Simultaneously, the control system also detects the rotational speed of the spindle. Based on the wire-laying speed of the electromagnet and the rotational speed of the spindle, the control system sets the wire-releasing time of the main wire clamp 700.

[0044] S2: Start the sewing machine. The control system controls the main shaft to rotate. The main shaft drives the needle to move up and down. The first stitch is started. Under the action of the electronic thread clamp 600, the top thread is brought to the bottom of the needle plate.

[0045] S3: The second stitch after the start of the stitch, the take-up lever moves downward to form a loose top thread, the control system clamps the top thread through the auxiliary thread clamp 100, the main thread clamp 700 loosens the thread, and then the thread-hitting drive assembly 300 drives the thread-hitting plate 200 to swing through the connecting rod 400.

[0046] S4: During the retraction process of the take-up lever, the main thread clamp 700 ends the thread release, and the thread drive assembly 300 and the auxiliary thread clamp 100 hold the thread until the take-up lever finishes retracting the thread. The take-up lever will then pull back the excess thread at the needle.

[0047] S5: After maintaining a stitch length, the thread-feeding drive assembly 300 is de-energized. Under the action of the return spring, the connecting rod 400 and the thread-feeding iron core shaft 311 are reset, and the auxiliary thread clamp 100 is released, and normal sewing resumes.

[0048] Preferably, in step S1, the control system automatically sets the wire release time of the main wire clamp 700 based on the wire-attaching speed of the wire-attaching electromagnet and the rotational speed of the spindle. The wire-attaching speed of the wire-attaching electromagnet can be detected using existing technology (e.g., a high-speed camera). In this embodiment, the wire release time of the main wire clamp 700 is set based on the rotational angle of the spindle.

[0049] For example, when the spindle speed is 4000 rpm, the wire bonding is completed when the spindle rotates 320°, based on the wire bonding speed of the wire bonding electromagnet. Thus, the control system is set to release the wire at 70° when the spindle rotates 330°.

[0050] For example, when the spindle speed is 3000 rpm, the wire bonding is completed when the spindle rotates 280°, based on the wire bonding speed of the wire bonding electromagnet. Thus, the control system is set to release the wire at 70° when the spindle rotates 290°.

[0051] For example, when the spindle speed is 2000 rpm, the wire bonding is completed when the spindle rotates 230°, based on the wire bonding speed of the wire bonding electromagnet. Thus, the control system is set to release the wire at 70° when the spindle rotates 240°.

[0052] In summary, by using the coordinates of the above-mentioned rotational speeds, the angles and rotational speeds between adjacent coordinate points transition in a programmed manner. For example, when the spindle speed is 2500 rpm, the wire bonding is completed when the spindle rotates 255°. The control system is then set to release the wire at 70° when the spindle rotates 265°.

[0053] The control method of the anti-bird nest wire-tapping device of the present invention uses a camera to detect and provide feedback on the wire-tapping speed of the wire-tapping drive assembly 300. At the same time, the control system also detects the rotation speed of the spindle. The control system sets the wire-releasing time of the main wire clamp 700 according to the wire-tapping speed of the wire-tapping drive assembly 300 and the rotation speed of the spindle. When the wire-tapping drive assembly 300 finishes tapping, the main wire clamp 700 immediately stops releasing the wire, reducing the possibility of the wire take-up lever pulling the wire off the wire frame.

[0054] Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A control method for an anti-bird nest stitching device, applied to a sewing machine; the sewing machine includes an anti-bird nest stitching device, a main shaft, and a main thread clamp (700), wherein the top thread passes through the anti-bird nest stitching device and then through the main thread clamp (700) to be threaded onto subsequent components; characterized in that: The wire-laying speed of the anti-bird nest wire-laying device and the rotation speed of the spindle are obtained, and the wire-loosening end time of the main wire clamp (700) is set according to the wire-laying speed of the anti-bird nest wire-laying device and the rotation speed of the spindle, so that the main wire clamp (700) ends the wire loosening when the anti-bird nest wire-laying device finishes wire-laying.

2. The control method for the anti-bird nest wire-punching device according to claim 1, characterized in that: The sewing machine also includes a sewing head (500), a needle, and a control system. The main shaft is rotatably mounted in the sewing head (500). The needle is connected to the main shaft and moves up and down reciprocally. The anti-bird nest stitching device and the main thread clamp (700) are both mounted on the sewing head (500). The top thread passes through the anti-bird nest stitching device and then through the main thread clamp (700) onto the needle. The control system is communicatively connected to the anti-bird nest stitching device, the drive source of the main shaft, and the drive source of the main thread clamp (700).

3. The control method for the anti-bird nest wire-punching device according to claim 2, characterized in that: The anti-bird nest wire-punching device includes an auxiliary wire clamp (100), a wire-punching plate (200), a wire-punching drive assembly (300), and a connecting rod (400). The connecting end of the wire-punching plate (200) is connected to the auxiliary wire clamp (100), and the wire-punching end of the wire-punching plate (200) can rotate relative to the auxiliary wire clamp (100). The wire-punching drive assembly (300) is disposed on one side of the auxiliary wire clamp (100), and the wire-punching drive assembly (300) has a wire-punching iron core shaft (311) that can move axially back and forth. The connecting rod (400) is disposed between the wire-punching plate (200) and the wire-punching drive assembly (300). One end of the connecting rod (400) is hinged to the wire-punching iron core shaft (311), and the other end is hinged to the wire-punching plate (200), so that the wire-punching end of the wire-punching plate (200) can swing through the axial movement of the wire-punching iron core shaft (311).

4. The control method for the anti-bird nest wire-punching device according to claim 3, characterized in that: The auxiliary wire clamp (100) includes a wire clamping electromagnet (110), a wire clamping plate (130), a wire clamping spring (140), an adjusting nut (150), and an adjusting knob (160). The wire clamping electromagnet (110) includes a base (111), a wire clamping cover plate (112), and a wire clamping iron core shaft (113). The wire clamping cover plate (112) is fixedly connected to one end of the base (111). The wire clamping iron core shaft (113) is disposed inside the base (111), and one end of the wire clamping iron core shaft (113) extends axially. The wire clamping cover plate (112) extends through the wire clamping knob (160) and is threaded to one end of the wire clamping core shaft (113). The two wire clamping plates (130) are sleeved on the wire clamping core shaft (113) facing each other and axially movable. The wire clamping spring (140) and the adjusting nut (150) are located between the adjusting knob (160) and the wire clamping plate (130), and the adjusting nut (150) is threaded to the wire clamping core shaft (113). The wire clamping electromagnet (110) is electrically connected to the control system.

5. The control method for the anti-bird nest wire-punching device according to claim 4, characterized in that: A wire guide plate (120) is provided between the wire clamping cover plate (112) and the wire clamping piece (130), and the top end of the wire guide plate (120) is sleeved on the wire clamping cover plate (112).

6. The control method for the anti-bird nest wire-punching device according to claim 5, characterized in that: The wire guide plate (120) has two first wire holes, and the wire punch plate (200) has a second wire hole on the side away from the connecting rod (400), with the second wire hole located between the two first wire holes.

7. The control method for the anti-bird nest wire-punching device according to claim 2, characterized in that: The wire bonding drive assembly (300) includes a wire bonding electromagnet, a return spring, and a retaining ring. The wire bonding electromagnet includes a housing and a wire bonding core shaft (311). The wire bonding core shaft (311) is installed inside the housing, and one end of the wire bonding core shaft (311) extends axially and is hinged to one end of the connecting rod (400) after passing through the housing. The retaining ring is installed on the wire bonding core shaft (311), and the return spring is installed between the retaining ring and the housing. The wire bonding electromagnet is electrically connected to the control system.

8. The control method for the anti-bird nest wire-punching device according to claim 6, characterized in that: The machine head (500) is also equipped with an electronic wire clamp (600). The top thread passes through the two clamping plates (130) of the auxiliary wire clamp (100), the first threading hole on the thread guide plate (120), the second threading hole on the punch plate (200), the main wire clamp (700), and the electronic wire clamp (600) in sequence before being threaded onto the machine needle.

9. The control method for the anti-bird nest wire-punching device according to claim 8, characterized in that: The steps are as follows: S1: Pass the thread through the two clamping plates (130) of the auxiliary clamping device (100), the first threading hole on the thread guide plate (120), the second threading hole on the punching plate (200), the main clamping device (700), and the electronic clamping device (600) in sequence, and then thread it onto the needle. S2: Start the sewing machine and begin the first stitch. Under the action of the electronic thread tensioner (600), the top thread is brought to the bottom of the needle plate. S2: After the second stitch after the start of the sewing, the take-up lever moves downward to form a loose top thread, the auxiliary thread clamp (100) attracts and clamps the top thread, the main thread clamp (700) loosens the thread, and then the thread-hitting drive assembly (300) drives the thread-hitting plate (200) to swing through the connecting rod (400); S3: During the retraction process of the take-up lever, the main wire clamp (700) ends the wire release, and the wire drive assembly (300) and auxiliary wire clamp (100) hold the take-up lever until it finishes retracting the wire. The take-up lever will pull back the excess wire at the needle. S4: After maintaining a stitch length, the thread drive assembly (300) is de-energized, the connecting rod (400) is reset, and the auxiliary thread clamp (100) is released, and normal sewing resumes.

10. The control method for the anti-bird nest wire-punching device according to claim 9, characterized in that: The following steps are also set before step S1: The control system detects the wire-laying speed of the wire-laying drive assembly (300) and the rotational speed of the spindle; based on the rotational speed of the spindle and the wire-laying speed of the wire-laying drive assembly (300), it controls the wire release time of the main wire clamp (700) drive source. In step S3, when the wire bonding drive assembly (300) finishes bonding, it coincides with the wire release time of the main wire clamp (700) drive source, and the main wire clamp (700) ends the wire release.

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