Lock needle driving mechanism, embroidery machine head and embroidery machine

By installing a lock needle drive source at the rear of the embroidery machine and using a transmission component to transmit the driving force, the problem of the lock needle structure occupying space is solved, resulting in a smaller machine head installation distance and higher work efficiency, thus improving the ability to create fine patterns.

CN224063062UActive Publication Date: 2026-03-31浙江镨美科智能刺绣设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing embroidery machines, the drive source for the lock needle structure is usually installed outside the side plate of the embroidery head, which limits the minimum installation distance between machine heads and affects high efficiency and the production of fine patterns.

Method used

The locking needle drive source is installed in a rear-mounted manner, located below the main beam and behind the machine head of the embroidery machine. The driving force is transmitted to the locking needle action component through the locking needle transmission component, thereby achieving the separation of the needle bar and avoiding interference.

Benefits of technology

It improves the working efficiency of embroidery machines and their ability to embroider small areas, enhancing the production effect of intricate patterns.

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Abstract

The embodiment of the utility model generally relates to the field of embroidery machines, in particular to a lock needle driving mechanism, an embroidery machine head and an embroidery machine. The locking needle driving mechanism comprises a locking needle driving source used for providing locking needle driving force for a machine head of the embroidery machine, and the locking needle driving source is installed behind the machine head and located below a girder of the embroidery machine; the lock needle transmission part is used for being in transmission connection with the lock needle driving source and a lock needle action part of the machine head, so that the lock needle driving source can drive the lock needle action part to act through the lock needle transmission part, and a needle rod driving block of the machine head is separated from a needle rod corresponding to the needle rod driving block. The rear mounting mode of the lock needle driving source on the embroidery machine can be realized, so that the mounting distance between adjacent embroidery machine heads on the embroidery machine is smaller, the working efficiency of the embroidery machine is improved, and the advantages of the embroidery machine in the aspects of small-area embroidery and fine pattern manufacturing are achieved.
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Description

Technical Field

[0001] The embodiments disclosed herein generally relate to the field of embroidery machines, and more specifically to a needle locking drive mechanism, an embroidery machine head, and an embroidery machine. Background Technology

[0002] The drive source for the lock-needle mechanism of an embroidery machine is typically mounted outside the side plate of the embroidery head, limiting the minimum distance that can be achieved between machine heads arranged side-by-side. Additionally, some types of embroidery heads require pulleys mounted on the main shaft, further restricting the installation space for the lock-needle mechanism's drive source. Summary of the Invention

[0003] Embodiments of this disclosure provide a structure for a lock needle, an embroidery head, and an embroidery machine, designed to address one or more of the problems described above and other potential problems.

[0004] According to a first aspect of this disclosure, a locking needle drive mechanism is provided, comprising: a locking needle drive source for providing locking needle drive force to the head of an embroidery machine, the locking needle drive source being mounted behind the head and located below the main beam of the embroidery machine; and a locking needle transmission member for drivingly connecting the locking needle drive source and a locking needle actuating member of the head, such that the locking needle drive source can drive the locking needle actuating member to actuate through the locking needle transmission member, thereby separating the needle bar drive block of the head from the needle bar corresponding to the needle bar drive block.

[0005] In some embodiments, the locking pin drive includes a first drive arm for connecting to the drive shaft of the locking pin drive source; a second drive arm for connecting to the locking pin actuating element; and one or more connectors for drivingly connecting the first drive arm and the second drive arm.

[0006] In some embodiments, the connector includes a link disposed between the main beam and the hook rod of the embroidery machine.

[0007] In some embodiments, the link includes a curved section for avoiding the hook rod.

[0008] In some embodiments, the locking needle actuator includes: a locking needle swing arm for swinging to drive the needle bar drive block to rotate, thereby causing the needle bar drive block to separate from its corresponding needle bar; and a locking needle shaft, one end of which is connected to the locking needle swing arm and the other end of which is connected to the second drive arm.

[0009] In some embodiments, the locking pin actuating element further includes: a swing arm reset element, used to reset the locking pin swing arm and maintain it in its initial state.

[0010] In some embodiments, the machine head includes a side plate for mounting the locking pin actuating element; and the locking pin shaft is rotatably mounted in the side plate of the machine head such that the portion of the locking pin shaft on the inner side of the side plate is connected to the locking pin swing arm, and the portion on the outer side of the side plate is connected to the second drive arm.

[0011] In some embodiments, the side plate is provided with a pivot mounting hole, and the locking pin pivot is rotatably mounted in the pivot mounting hole via a bushing.

[0012] In some embodiments, the locking pin drive source is mounted on the main beam.

[0013] In some embodiments, the locking pin drive source is mounted on the machine head.

[0014] In some embodiments, the locking needle drive source is mounted on the side plate of the machine head, and the side plate is provided with clearance space for avoiding the hook rod of the embroidery machine.

[0015] According to a second aspect of this disclosure, an embroidery machine head is provided, the embroidery machine head including the locking needle drive mechanism described in the first aspect of this disclosure.

[0016] According to a third aspect of this disclosure, an embroidery machine is provided, the embroidery machine including the embroidery head described in the second aspect of this disclosure. Attached Figure Description

[0017] The above and other objects, features, and advantages of embodiments of the present disclosure will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated in the drawings by way of example and not limitation.

[0018] Figure 1 A perspective view showing the mounting location of the locking pin drive source in the relevant prior art.

[0019] Figure 2 A partial perspective view of an embroidery machine according to an embodiment of the present disclosure is shown.

[0020] Figure 3 A perspective view of the needle bar drive block and the needle bar according to an embodiment of the present disclosure is shown.

[0021] Figure 4 Show Figure 2 A magnified view of the area at position 120.

[0022] Figure 5 A schematic diagram showing the connection between the locking pin drive member, the locking pin drive source, and the locking pin actuator according to an embodiment of the present disclosure is provided.

[0023] Figure 6A schematic diagram of the structure of the crank section of a connecting rod according to an embodiment of the present disclosure is shown.

[0024] Figure 7 A perspective view of a locking pin actuator according to an embodiment of the present disclosure is shown.

[0025] Figure 8 A perspective view of a locking pin actuator and a pin bar driver according to an embodiment of the present disclosure is shown.

[0026] Figure 9 A schematic diagram of the installation of a locking pin drive mechanism according to an embodiment of the present disclosure is shown.

[0027] Figure 10 A schematic diagram of the mounting of the locking pin drive source in the machine head according to an embodiment of the present disclosure is shown.

[0028] In the various figures, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0029] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0030] The term "comprising" and its variations as used herein signify an open-ended inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". Terms such as "upper", "lower", "front", and "rear", indicating placement or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are used only for the purpose of describing the principles of this disclosure, and are not intended to indicate or imply that the elements referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting this disclosure.

[0031] As mentioned earlier, when the needle bar of a multi-head embroidery machine needs to stop, in order to prevent the needle bar of the stopping head from continuing to move up and down while the main shaft is rotating, causing interference and collision between the needle bar and the presser foot, the locking mechanism configured in the stopping head will be activated when the needle stops, so as to drive the needle bar driver to separate from the corresponding driven needle bar. Figure 1 As shown, in related technologies, multiple embroidery machine heads 10 ( Figure 1(Only one is shown in the image) The main shafts of these embroidery heads are mounted side by side via the main beam 20 of the embroidery machine, allowing them to rotate synchronously. The lock needle drive source 0110 of the lock needle structure of the embroidery head 10 is usually mounted on both sides of the embroidery head, thus limiting the minimum installation distance that can be achieved between two adjacent embroidery heads 10. This limits the high working efficiency that the embroidery machine can achieve and its advantages in handling small areas and creating intricate patterns.

[0032] To address this, this disclosure provides a locking needle drive mechanism that enables the locking needle drive source to be mounted rear-mounted on the embroidery machine. This reduces the installation distance between adjacent embroidery heads, improving the machine's efficiency and its advantages in small-area embroidery and intricate pattern creation. The principle of the locking needle drive mechanism according to this disclosure will be described in detail below with reference to the accompanying drawings.

[0033] Figure 2 A perspective view of an embroidery machine according to an embodiment of the present disclosure is shown. Figure 1 As shown, the embroidery machine 1 includes a main beam 20 serving as the main frame of the embroidery machine. The main beam 20 is typically made of a strong and rigid material and is used to support the machine head and motion mechanism. One or more machine heads 20 for performing sewing and embroidery functions are mounted on the main beam 20. To prevent the needle bar of the stopped machine head from continuing to move up and down reciprocating while the main shaft is rotating, the machine head 10 is equipped with a locking needle drive mechanism 100. The locking needle drive mechanism can separate the needle bar driver of the machine head from its corresponding driven needle bar when the machine head stops. In one or more embodiments of this disclosure, the locking needle drive mechanism 100 includes a locking needle drive source 110 for providing locking needle driving force to the machine head 10. The locking needle drive source 110 can be various drive devices that convert hydraulic, pneumatic, or electrical power into the movement of the output shaft (i.e., the drive shaft). The locking needle drive source 110 can be an AC or DC powered electric motor, such as a servo motor, stepper motor, torque motor, switched reluctance motor, brushless motor, etc. In one or more embodiments of this disclosure, the needle drive source 110 may be a rotary motor that converts input electrical energy into rotation of the output shaft to provide driving force for the needle. To achieve a smaller installation distance between the machine heads 10 on the embroidery machine 1, in one or more embodiments of this disclosure, the needle drive source 110 is installed behind the machine head 10 and below the main beam 20 of the embroidery machine. Here, "behind" the machine head refers to the direction in which the part of the machine head 10 is fixed to the main beam 20, and "below" the main beam 20 refers to the direction in which the main beam 20 of the embroidery machine 1 faces the ground. In this way, the needle drive source 110 no longer occupies the installation space on both sides of the machine head 10, thereby enabling a smaller installation distance between the machine heads.

[0034] In one or more embodiments of this disclosure, the pin locking drive structure 100 further includes a pin locking transmission member 120 for receiving the driving force output from the pin locking drive source 110. The pin locking transmission member 120 can transmit the driving force from the pin locking drive source 110 to the pin locking actuator 210 of the machine head, thereby driving the pin locking actuator 210 to separate the pin bar drive block of the machine head from the pin bar driven block correspondingly driven by the pin bar drive block. The pin bar drive block is mounted on the pin bar driver of the machine head and can rise and fall with the pin bar driver. The pin bar driver engages with the pin bar mounted on the pin bar frame of the machine head through the pin bar drive block, thereby driving the pin bar to rise and fall synchronously. The pin bar drive block on the pin bar driver has two states: connected to the pin bar and disengaged from the pin bar. The machine head changes the state of the pin bar drive block through the pin locking actuator, switching the pin bar drive block from the connected state to the disengaged state. The pin bar driver can use linear drive, rotary drive, or a combination thereof to drive the pin bar. Depending on the driving method, the engagement method between the pin bar drive block and the pin bar can also be different. For example, in one or more embodiments of this disclosure, the needle bar driver achieves engagement or disengagement between the needle bar driver block and the needle bar through the rotation of the needle bar driver block. When the needle bar driver is engaged with the needle bar, the needle bar driver can drive the needle bar to move up and down synchronously. Figure 3 A perspective view of a needle bar drive block and a needle bar according to an embodiment of the present disclosure is shown. Figure 3As shown, in one or more embodiments of this disclosure, a needle bar driver 310 is mounted on a needle bar guide 330 arranged parallel to the needle bar, and the needle bar driver 310 is capable of moving up and down along the needle bar guide 330. A needle bar drive block 312 is mounted on the needle bar driver 310, and the needle bar drive block 312 is rotatable on the needle bar driver 310. For example, the needle bar driver may include a frame that is capable of moving up and down on the needle bar guide 330 but cannot rotate. The frame is mounted on the needle bar guide 330 via a sleeve, the inner wall of the sleeve is in vertical engagement with the needle bar guide 330, and the outer wall of the sleeve is fixed to the frame. The needle bar drive block 312 is sleeved outside the sleeve and can rotate around the sleeve. The needle bar drive block 312 includes a locking needle engagement portion 3121, and the action of the locking needle transmission member 120 can act on the locking needle engagement portion 3121, thereby generating a force to drive the needle bar drive block 312 to rotate. The needle bar drive block 312 engages with the needle bar 320 via a bayonet 3122. A fulcrum 321 protrudes from the needle bar guide rod 311 on the needle bar 320. Normally, the bayonet 3122 of the needle bar drive block faces the needle bar 320 (i.e., the projections of the bayonet and the fulcrum in the plane perpendicular to the needle bar overlap), causing the fulcrum 321 of the needle bar to engage with the bayonet 3122. The needle bar driver 310 can then drive the needle bar 320 to move vertically via the needle bar connecting block 312. When needle locking is required, the needle locking actuator 210 actuates, and the needle locking mating part 3121 of the needle bar drive block 312 is subjected to force, causing the needle bar drive block 312 to rotate. The bayonet 3122 will deviate from the needle bar 320 as the needle bar connector rotates (that is, the projections of the bayonet and the fulcrum in the plane perpendicular to the needle bar are separated and do not overlap). The fulcrum 321 disengages from the bayonet 3122, and the needle bar driver will be unable to drive the needle bar to move vertically, thereby achieving the separation of the needle bar driver 310 and its corresponding needle bar 320. In this way, the driving force of the needle locking drive source 110 located behind the machine head and below the main beam drives the needle locking actuator 210 through the needle locking transmission component 120, driving the needle locking actuator to separate the needle bar driver and its corresponding needle bar, thus achieving needle locking.

[0035] Figure 4 Show Figure 2 A magnified view of a portion of the center-locking pin drive component at position 120. (See image.) Figure 4 As shown, the locking pin drive component 120 includes a first drive arm 121 for connecting to the locking pin drive source 110, a second drive arm 122 for connecting to the locking pin actuating component 210, and one or more connectors 123 that drive the first drive arm 121 and the second drive arm 122. Figure 5 A schematic diagram showing the connection between the locking pin drive member, the locking pin drive source, and the locking pin actuating member according to an embodiment of the present disclosure is provided. Figure 5As shown, one end of the first drive arm 121 is connected to the drive shaft 111, and the other end is connected to one or more connecting members 123. The connecting members are used to drive the two drive arms, allowing the movement of the first drive arm 121 to be transmitted to the second drive arm 122, thereby enabling the locking pin drive source 110 to drive the locking pin actuating member 210. The connecting member can be one or more of the following: a shaft capable of rotational drive, a belt-driven pulley, a swing-driven connecting rod, etc. In one or more embodiments of this disclosure, a connecting rod can be used to connect the first drive arm 121 and the second drive arm 122, simplifying the structure of the locking pin transmission component. The first drive arm 121 can be a U-shaped connecting arm for easy transmission of rotational driving force. The end of the U-shaped connecting arm connecting the drive shaft 111 is provided with a bent metal strip or plastic rod, and both ends have structures for clamping the output shaft 111 (e.g., clamping pins or clamping bolts). The other end of the first drive arm 121 can be connected to the connecting rod via a connecting pin or connecting bolt, thereby transmitting the rotational force of the drive shaft 111 to the connecting rod, causing the connecting rod to swing. The other part of the connecting rod can be connected to the second drive arm 122 by connecting pins or connecting bolts. The second drive arm 121 can adopt a U-shaped connecting arm to facilitate the transmission of rotational driving force. The arm end of the U-shaped connecting arm used to connect the locking pin actuator 120 includes a bent metal strip or plastic rod, with structures (such as clamping pins or clamping bolts) at both ends to clamp the locking pin actuator 120, which can drive the locking pin actuator to move.

[0036] A hook-and-pull rod is located below the main beam and behind the machine head of the embroidery machine. To transmit the driving force output from the locking needle drive source below and behind the machine head to the locking needle actuator in the machine head, the locking needle transmission component typically includes a connecting rod disposed between the main beam and the hook-and-pull rod. To prevent interference between the connecting rod and the hook-and-pull rod during swinging, in one or more embodiments of this disclosure, the connecting rod located between the main beam and the hook-and-pull rod further includes a curved section 1231 for avoiding the hook-and-pull rod of the embroidery machine. Figure 6 A schematic diagram of the crank section 1231 of the connecting rod according to an embodiment of the present disclosure is shown. Figure 6 As shown, the hook rod 30 extends along the arrangement direction on the main beam of the machine head 10. In order to avoid interference with the hook rod 30, the connecting rod includes one or more straight rod portions extending in a straight line and one or more curved rod portions 1231 that bend or twist once or multiple times in the extension direction, so that the movement trajectory of the connecting rod can avoid the hook rod 30 when swinging.

[0037] In one or more embodiments of this disclosure, the locking pin actuator 210 may include a locking pin pivot 211 and a locking pin swing arm 212. Figure 7 A perspective view 210 of a locking pin actuation element according to an embodiment of the present disclosure is shown. Figure 7As shown, a portion of the locking pin shaft 211 is used to connect to the second drive arm of the locking pin transmission component. For example, the second drive arm can clamp the locking pin shaft 211 through a U-shaped connecting arm to drive the locking pin shaft 211 to rotate. Another portion of the locking pin shaft 211 is used to connect to the locking pin swing arm 212. The rotation of the locking pin shaft can drive the locking pin swing arm 212 to swing. In one or more embodiments of this disclosure, the locking pin swing arm is connected to the locking pin shaft 211 through a U-shaped connecting arm 2122, and the portion of the locking pin swing arm away from the locking pin shaft is provided with an actuating element 2121. Figure 8 A perspective view of a locking pin actuator and a pin bar driver according to an embodiment of the present disclosure is shown. Figure 8 As shown, the locking needle engagement part 3121 can be an elongated structure arranged along the needle bar guide 330. The locking needle engagement part 3121 can cooperate with the actuating member 2121 in a sliding, rolling, or other manner to apply a force in the radial direction of the needle bar guide 330. In one or more embodiments of this disclosure, the actuating member 2121 can be a roller, slider, or other structure, so that when the locking needle swing arm 212 swings, it acts on the locking needle engagement part 3121 of the needle bar drive block through rolling, sliding, impact, or other means, thereby pushing the needle bar drive block 312 to rotate. The actuating member can also be made of foam, rubber, nylon, or other cushioning materials to enhance the stability of the structure. In one or more embodiments of this disclosure, the locking needle actuating member 210 further includes a swing arm reset member 213 for resetting the locking needle swing arm and maintaining it in the initial state. That is, when the locking needle drive source is started or the locking needle drive source outputs driving force, the locking needle swing arm 212 swings out and acts on the needle bar drive block, causing the bayonet 3122 to deviate from the fulcrum 321 of the needle bar. When the locking pin drive source is turned off or there is no driving force output from the locking pin drive source, the swing arm reset member 213 can reset the locking pin swing arm 212 from the swung-out state and maintain it in the initial state before swung out. In one or more embodiments of this disclosure, the swing arm reset member can be a torsion spring mounted on the locking pin shaft, with one active end of the torsion spring fixed and the other active end connected to the locking pin swing arm. When the locking pin swing arm swings, the torsion spring end connected to the locking pin swing arm is stretched along with the locking pin swing arm, and the torsion spring deforms. When the rotational torque of the shaft disappears, the torsion spring will drive the locking pin swing arm to reset and maintain the locking pin swing arm in the initial state.

[0038] Figure 9 A schematic diagram of the installation of a locking pin drive mechanism according to an embodiment of the present disclosure is shown. Figure 9As shown, in one or more embodiments of this disclosure, the machine head includes a side plate 410 for mounting a locking pin actuating element 210, and a locking pin shaft 211 of the locking pin actuating element is rotatably mounted in the side plate 410. A portion of the locking pin shaft 211 extends into the side plate 410 to connect to a locking pin swing arm 212; another portion of the locking pin shaft 211 extends out of the side plate 410 to connect to a second drive arm 122. In one or more embodiments of this disclosure, the side plate 410 may be provided with a shaft mounting hole (not shown in the figure), in which the locking pin shaft 211 is rotatably mounted via a bushing 2111, which provides better support for the locking pin shaft 211.

[0039] The locking pin drive source can be mounted on the main beam or on the machine head. In some embodiments of this disclosure, the locking pin drive source 110 is mounted on the machine head 10. Figure 10 A schematic diagram showing the mounting of a locking pin drive source in the machine head according to an embodiment of the present disclosure is provided. Figure 10 As shown, the side plate 410 of the machine head is composed of two parts: a rear side plate near the main beam 20 and a front side plate near the needle bar frame. This splicing method of the front and rear side plates facilitates machine head assembly and maintenance. The locking needle actuating component 210 is mounted on the front side plate, and the rear side plate extends towards the rear of the machine head 10 to below the main beam 20, forming a locking needle drive source mounting section for mounting the locking needle drive source 110. The locking needle drive source mounting section has a through hole through which the output shaft 111 of the locking needle drive source passes. The output shaft 111 passes through the through hole and connects to the locking needle transmission component 120 located outside the machine head side plate 410. The rear side plate has a hollow section in front of the locking needle mounting section, forming a clearance space a for accommodating the hook rod 30. In one or more embodiments of this disclosure, the hollow section can be a through hole on the rear side plate, and the space in the middle of the through hole can serve as a clearance space for accommodating the hook rod. The cutout can also be an opening on the lower side of the rear panel facing the hook-and-loop fastener. The hook-and-loop fastener can be accommodated in the opening, and the space in the middle of the opening forms a clearance space for the hook-and-loop fastener. This method makes the installation and maintenance of the locking pin drive source more convenient.

[0040] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A lock pin drive mechanism (100) characterized by, The lock needle driving mechanism (100) comprises: a lock needle driving source (110) for providing a lock needle driving force for a needle head (10) of an embroidery machine (1), the lock needle driving source (110) being installed at the back of the needle head (10) and below a beam (20) of the embroidery machine; and a lock needle transmission member (120) for drivingly connecting the lock needle driving source (110) and a lock needle action member (210) of the needle head, so that the lock needle driving source (110) can drive the lock needle action member (210) to act through the lock needle transmission member (120), and separate a needle bar driving block (312) of the needle head from a needle bar (320) corresponding to the needle bar driving block (312). The lock needle transmission member (120) comprises:

2. A lock pin drive mechanism (100) according to claim 1, characterized in that a first driving arm (121) for connecting a driving shaft (111) of the lock needle driving source; a second driving arm (122) for connecting the lock needle action member (210); and one or more connecting members (123) for drivingly connecting the first driving arm (121) and the second driving arm (122).

3. The lock needle driving mechanism (100) according to claim 2, wherein: the connecting members comprise a connecting rod arranged between the beam (20) and a thread hooking lever (30) of the embroidery machine. The connecting rod comprises a curved rod portion (1231) for avoiding the thread hooking lever (30).

4. A lock pin drive mechanism (100) according to claim 3, characterized in that: The lock needle action member (210) comprises:

5. A lock pin drive mechanism (100) according to claim 2, characterized in that a lock needle swing arm (212) for swinging to drive the needle bar driving block (312) to rotate, so as to separate the needle bar driving block from the needle bar (320) corresponding thereto; and a lock needle rotating shaft (211) connected at one end to the lock needle swing arm (212) and at the other end to the second driving arm. The lock needle action member (210) further comprises:

6. A lock pin drive mechanism (100) according to claim 5, characterized in that a swing arm resetting member (213) for resetting and keeping the lock needle swing arm (212) in an initial state.

7. The lock needle driving mechanism (100) according to claim 5, wherein: the needle head (10) comprises a side plate (410) for installing the lock needle action member; and the lock needle rotating shaft (211) is rotatably installed in the side plate (410) of the needle head, so that a portion of the lock needle rotating shaft (211) inside the side plate (410) is connected to the lock needle swing arm (212), and a portion of the lock needle rotating shaft (211) outside the side plate (410) is connected to the second driving arm (122).

8. The lock needle driving mechanism (100) according to claim 7, wherein: the side plate (410) is provided with a rotating shaft mounting hole, and the lock needle rotating shaft is rotatably installed in the rotating shaft mounting hole through a shaft sleeve (2111).

9. The lock needle driving mechanism (100) according to any one of claims 1-8, wherein: the lock needle driving source (110) is installed on the beam (20).

10. The lock needle driving mechanism (100) according to any one of claims 1-8, wherein: the lock needle driving source (110) is installed on the needle head (10). ​ 11. The lock needle driving mechanism (100) according to claim 10, characterized in that: the lock needle driving source (110) is mounted on a side plate (410) of the machine head (10), and the side plate (410) is provided with an avoiding space (b) for avoiding the thread hooking pull rod (30) of the embroidery machine.

12. An embroidery head (10) characterized by, The embroidery machine head (10) comprises the lock needle driving mechanism (100) according to any one of claims 1-11.

13. An embroidery machine (1) characterized in that, The embroidery machine head (10) comprises the lock needle driving mechanism (100) according to claim 12.