Lock needle driving mechanism, embroidery machine head and embroidery machine

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 above the machine head; the needle locking action assembly is used for separating a needle rod driving block of the machine head from a needle rod corresponding to the needle rod driving block, and the needle locking action assembly is connected with the front face of the machine head; the lock needle transmission assembly is used for being in transmission connection with the lock needle driving source and the lock needle action assembly, and the lock needle transmission assembly comprises one or more connecting pieces located above a main shaft of the embroidery machine. The locking needle driving source can be mounted above the embroidery machine head or on the front side, so that the mounting distance between the 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.

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 above the head; a locking needle actuation assembly for separating a needle bar drive block of the head from a needle bar corresponding to the needle bar drive block, and the locking needle actuation assembly being connected to the front side of the head; and a locking needle transmission assembly for drivingly connecting the locking needle drive source and the locking needle actuation assembly, the locking needle transmission assembly including one or more connectors located above the main shaft of the embroidery machine.

[0005] In some embodiments, the needle locking actuation assembly includes: an actuating element for separating the needle bar drive block of the machine head from the needle bar corresponding to the needle bar drive block; and a mounting element including a first connecting portion for connecting the actuating element and a second connecting portion facing the front of the machine head, the second connecting portion being used to connect the machine head.

[0006] In some embodiments, the locking pin drive source is connected to the machine head via a drive source mounting component.

[0007] In some embodiments, the drive source mount includes a head connector facing the front of the head.

[0008] In some embodiments, the locking needle drive source is connected to the main beam of the embroidery machine via a drive source mounting component.

[0009] In some embodiments, the drive source mount includes a beam connection portion facing the front of the machine head.

[0010] In some embodiments, the actuator includes a rocker arm mounted on the first connecting portion and rotating about a fulcrum, and the distal end of the rocker arm is provided with a rolling element for contacting the needle bar drive block.

[0011] In some embodiments, the locking pin drive assembly further includes a first drive arm for connecting the drive shaft of the locking pin drive source and a second drive arm for driving the actuator, the second drive arm rotating about the fulcrum; and one or more of the connectors drively connecting the first drive arm and the second drive arm.

[0012] In some embodiments, the fulcrum is a rotating shaft rotatably mounted on the first connecting portion, and both the swing arm and the second drive arm are fixed to the rotating shaft.

[0013] In some embodiments, the fulcrum is a fulcrum shaft fixedly installed on the first connecting part, and the second drive arm is fixedly connected to the swing arm.

[0014] In some embodiments, the second drive arm and the swing arm are located on the same side of the first connection.

[0015] In some embodiments, the second drive arm and the swing arm are located on different sides of the first connecting portion.

[0016] In some embodiments, the locking pin drive mechanism further includes a reset member for resetting the actuator.

[0017] In some embodiments, the locking pin drive mechanism further includes a reset member for resetting the actuator, and the reset member acts on the first drive arm.

[0018] In some embodiments, the locking pin drive mechanism further includes a reset member for resetting the actuator, and the reset member acts on the actuator.

[0019] In some embodiments, the connector passes through the machine head from above, downward and forward through the interior of the machine head.

[0020] In some embodiments, the connector is located outside the head.

[0021] According to a second aspect of this disclosure, an embroidery machine head is provided, including the locking needle drive mechanism described in the first aspect above.

[0022] According to a third aspect of this disclosure, an embroidery machine is provided, including the embroidery head described in the second aspect above.

[0023] In some embodiments, the head-to-head distance between adjacent embroidery heads is less than 150 mm. Attached Figure Description

[0024] 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.

[0025] Figure 1 A perspective view showing the mounting location of the locking pin drive source in the relevant prior art.

[0026] Figure 2 A perspective view is shown relating to a locking pin drive mechanism according to an embodiment of the present disclosure.

[0027] Figure 3 A perspective view of a locking pin actuation assembly according to an embodiment of the present disclosure is shown.

[0028] Figure 4 A perspective view of a needle bar driver and a needle bar according to an embodiment of the present disclosure is shown.

[0029] Figure 5 A perspective view of the actuator and needle bar driver of the locking pin actuation assembly according to an embodiment of the present disclosure is shown.

[0030] Figure 6 A schematic diagram showing the connection between the mounting part of the locking pin actuation assembly and the machine head according to an embodiment of the present disclosure is shown.

[0031] Figure 7 A schematic diagram showing the connection between the drive source mounting component of the locking pin drive source according to an embodiment of the present disclosure and the machine head is shown.

[0032] Figure 8 A perspective view of a locking pin actuator according to an embodiment of the present disclosure is shown.

[0033] Figure 9 A perspective view of a locking pin drive assembly according to an embodiment of the present disclosure is shown.

[0034] Figure 10 A schematic diagram showing the connection between the locking pin drive assembly and the locking pin actuation assembly according to an embodiment of the present disclosure is provided.

[0035] Figure 11 A schematic diagram of the installation of the reset member according to an embodiment of the present disclosure is shown.

[0036] In the various figures, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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 20 ( Figure 1 (Only one is shown in the image) These embroidery heads are mounted side-by-side on the main beam 30 of the embroidery machine, allowing the spindles of these embroidery heads to rotate synchronously. The lock needle drive source 0110 of the lock needle structure of the embroidery head 20 is usually mounted on both sides of the embroidery head 20, thus limiting the minimum installation distance that can be achieved between two adjacent embroidery heads. This limits the high working efficiency that the embroidery machine can achieve and its advantages in handling small areas and creating intricate patterns.

[0040] To address this, this disclosure provides a locking needle drive mechanism that enables the locking needle drive source to be installed above the embroidery machine head. This reduces the installation distance between adjacent embroidery machine heads, improving the machine's efficiency and its advantages in small-area embroidery and fine 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.

[0041] Figure 2 A perspective view of a locking pin drive mechanism according to an embodiment of the present disclosure is shown, such as... Figure 2As shown, in one or more embodiments of this disclosure, the needle locking drive mechanism 100 includes a needle locking drive source 101 for providing needle locking drive force to the machine head 20, the needle locking drive source 101 being mounted above the machine head 20. The needle locking drive mechanism also includes a needle locking actuation assembly 102 for separating the needle bar drive block 211 of the machine head from the corresponding needle bar, and the needle locking actuation assembly 102 is connected to the front of the machine head 20. Furthermore, the needle locking drive mechanism includes a needle locking transmission assembly 103 for drivingly connecting the needle locking drive source 101 and the needle locking actuation assembly 102, the needle locking transmission assembly 103 including one or more connectors located above the main shaft (not shown) of the embroidery machine. Here, "front" of the machine head refers to the direction of the machine head for mounting or facing the needle bar frame, and "above" of the machine head refers to the direction away from the ground. In this way, the needle locking drive source is located above or on the front of the machine head, no longer occupying the mounting space on both sides of the machine head. Meanwhile, the locking pin actuation assembly is connected to the front of the machine head, and the installation and maintenance of the locking pin actuation assembly can be carried out mainly from the front of the machine head, thereby enabling a smaller machine head distance.

[0042] In one or more embodiments of this disclosure, the sewing head 20 is mounted on the main beam of the embroidery machine as a mechanism for performing sewing and embroidery functions. The main beam, serving as the main frame of the embroidery machine, is typically made of a strong and rigid material to support the sewing head and motion mechanism. The main shaft is mounted to the sewing head 20 through the main shaft mounting hole 203. The needle locking drive mechanism 100 can separate the needle bar driver 201 of the sewing head from its corresponding driven needle bar when the sewing head stops, thereby preventing the needle bar of the stopped sewing head from continuing its reciprocating motion while the main shaft is rotating. The needle locking drive source 101 can be any drive device that converts hydraulic, pneumatic, or electrical energy into the movement of the output shaft (i.e., the drive shaft). The needle locking drive source 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 locking drive source 101 can be a rotary motor that converts input electrical energy into rotation of the output shaft to provide the driving force for the needle locking.

[0043] Figure 3 A perspective view of a locking pin actuation assembly according to an embodiment of the present disclosure is shown. Figure 3 As shown, in one or more embodiments of this disclosure, the needle locking actuation assembly 102 includes an actuating member 121 for separating the needle bar drive block of the machine head from the needle bar correspondingly driven by the needle bar drive block, and a mounting member 122 for mounting the actuating member 121 on the machine head 20. In one or more embodiments of this disclosure, the mounting member may include a first connecting portion for connecting the actuating member and a second connecting portion facing the front of the machine head. Figure 4 A schematic diagram showing the connection between the locking pin actuation assembly mount and the machine head according to an embodiment of the present disclosure is provided.Figure 4 As shown, the front of the machine head 20 is provided with an actuator mounting portion 202 for connecting the mounting member 122. In one or more embodiments of this disclosure, the actuator mounting portion 202 can be a mounting hole or threaded hole facing the front of the machine head, and the second connecting portion 1222 can be a through hole facing the front of the machine head penetrating the mounting member 122. Bolts, screws, and other connecting members pass through the through hole and connect to the hole on the front of the machine head, thereby fixing the mounting member 122 to the machine head 20. The actuator mounting portion 202 can also be a mounting surface facing the front of the machine head, and the second connecting portion 1222 can be a connecting surface facing the mounting surface. The mounting surface and the connecting surface can be glued and fixed by means of adhesive, thereby fixing the mounting member 122 to the machine head 20. The actuator mounting portion 202 and the second connecting portion 1222 can also be two components connected together by welding or other operations on the front of the machine head. In this way, the installation and maintenance of the locking needle actuation component can be carried out from the front of the machine head, thereby achieving a frontal connection between the locking needle actuation component and the machine head. This allows for a smaller installation space between multiple machine heads on the embroidery machine, achieving a machine head distance of less than 150mm.

[0044] In one or more embodiments of this disclosure, the locking pin drive source can be installed to the machine head directly or indirectly. Direct installation can be achieved by bonding, welding, snap-fitting, or other methods to directly connect the locking pin drive source to the machine head. Indirect installation can be achieved by using one or more intermediate components to fix the locking pin drive source to the machine head. In one or more embodiments of this disclosure, the locking pin drive source 101 is indirectly connected to the machine head 20 via a drive source mounting component. Figure 5 A schematic diagram showing the connection between the drive source mounting member of the locking pin drive source according to an embodiment of the present disclosure and the machine head 20 is shown, as follows. Figure 5As shown, the top of the machine head 20 has a raised step, and a slot 204 for mounting the needle drive source 101 is formed on the step facing the front of the machine head. The needle drive source mounting component can be a mounting plate for connecting the needle drive source 101. The mounting plate has a through hole for the output shaft of the needle drive source 101 to pass through. A retaining plate (i.e., the machine head connecting part 111) protrudes downward on the mounting plate and engages with the slot 204. The retaining plate has a through hole for a connector to pass through facing the front of the machine head. The connector 112 passes through the through holes of the retaining plate and the slot, connecting the two. In one or more embodiments of this disclosure, the needle drive source can also be mounted to the main beam of the embroidery machine directly or indirectly. Similar to the case of mounting to the machine head, the needle drive source can be mounted to the main beam directly or indirectly. Direct mounting can be achieved by bonding, welding, snap-fitting, etc., to directly connect the needle drive source to the main beam. Indirect mounting can be achieved by fixing the needle drive source to the main beam through one or more intermediate parts. For example, the locking needle drive source can be indirectly mounted to the main beam of the embroidery machine via a drive source mounting component. It is understood that the drive source mounting component has a main beam connection portion facing the front of the machine head. In this way, the installation and maintenance of the locking needle drive source can also be performed primarily from the front of the machine head, allowing for a smaller installation space between multiple machine heads on the embroidery machine and achieving a shorter machine head installation distance.

[0045] Figure 6 A perspective view of a locking pin actuator according to an embodiment of the present disclosure is shown. Figure 6 As shown, in one or more embodiments of this disclosure, the actuating element 121 includes a rocker arm 1211 mounted on the first connecting portion 1221 and rotating about the fulcrum a. The distal end of the rocker arm 1211 is provided with a rolling element 1212 for contacting the needle bar drive block 211. In one or more embodiments of this disclosure, the rolling element 1212 may be a roller, bearing, etc. When the rocker arm 1211 swings, the rolling element 1212 acts on the needle bar drive block by rolling, sliding, or impact, thereby driving the needle bar drive block 211 to separate from the corresponding driven needle bar. In one or more embodiments of this disclosure, the rolling element 1212 may also be made of foam, rubber, nylon, or other cushioning materials to enhance the stability of the structure. Figure 7 A perspective view of the needle bar driver 211 and the needle bar 106 according to an embodiment of the present disclosure is shown. Figure 7As shown, in one or more embodiments of this disclosure, the needle bar drive block 211 is mounted on the needle bar driver 201 of the machine head and can rise and fall with the needle bar driver 201. The needle bar driver 201 cooperates with the needle bar 106 mounted on the needle bar frame of the machine head through the needle bar drive block 211, thereby driving the needle bar 106 to rise and fall synchronously. The needle bar drive block has two states: connected to the needle bar and disengaged from the needle bar. The machine head changes the state of the needle bar drive block through a locking actuation component, causing the needle bar drive block to switch from the connected state to the disengaged state. The needle bar driver can use linear drive, rotary drive, or a combination thereof to drive the needle bar. Depending on the driving method, the cooperation method between the needle bar drive block and the needle bar can also be different. For example, in one or more embodiments of this disclosure, the needle bar driver realizes the cooperation or disengagement of the needle bar drive block 211 and the needle bar 106 through the rotation of the needle bar drive block. When the needle bar driver is in cooperation with the needle bar, the needle bar driver can drive the needle bar to rise and fall synchronously. Figure 7 As shown, in one or more embodiments of this disclosure, a needle bar driver 201 is mounted on a needle bar guide 212 arranged parallel to the needle bar, and the needle bar driver 201 is capable of moving up and down along the needle bar guide 212. A needle bar drive block 211 is mounted on the needle bar driver 201, and the needle bar drive block 211 is rotatable on the needle bar driver 201. For example, the needle bar driver may include a frame that is capable of moving up and down on the needle bar guide 212 but cannot rotate. The frame is mounted on the needle bar guide 212 via a sleeve, the inner wall of the sleeve is in vertical engagement with the needle bar guide 212, and the outer wall of the sleeve is fixed to the frame. The needle bar drive block 211 is sleeved outside the sleeve and can rotate around the sleeve.

[0046] Figure 8 A perspective view of the actuator and needle bar driver of a locking pin actuation assembly according to an embodiment of the present disclosure is shown. Figure 8As shown, in one or more embodiments of this disclosure, the needle bar drive block 211 includes a locking needle engagement portion 2111. The locking needle engagement portion 2111 can be an elongated structure arranged along the length direction of the needle bar guide rod 212. When the swing arm 1211 of the actuating member 121 swings, the rolling member 1212 can act on the locking needle engagement portion 2111 through rolling, sliding, or impact, thereby generating a force to drive the needle bar drive block 211 to rotate. The needle bar drive block 211 engages with the needle bar 106 through a bayonet 2112. A fulcrum 161 is provided on the needle bar 106 protruding towards the needle bar guide rod 212. Normally, the bayonet 2112 of the needle bar drive block faces the direction of the needle bar 106 (i.e., the projection of the bayonet and the fulcrum in the plane perpendicular to the needle bar overlaps), so that the fulcrum 161 of the needle bar engages with the bayonet 2112, and the needle bar driver 201 can drive the needle bar 106 to move vertically through the needle bar drive block 211. When needle locking is required, the swing arm 1211 is driven by the needle locking drive source to swing to the needle locking engagement part 2111. The force on the needle locking engagement part 2111 causes the needle bar drive block 211 to rotate around the sleeve. The bayonet 2112 also deviates from the needle bar 106 as the needle bar drive block 211 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). Finally, the fulcrum 161 disengages from the bayonet 2112, thereby separating the needle bar drive block 211 from its corresponding needle bar 106. The needle bar driver will then be unable to drive the needle bar to move vertically. In this way, the driving force of the needle locking drive source 101 located above the machine head is transmitted to the needle locking action assembly 102 through the needle locking transmission assembly 103, driving the action element 121 of the needle locking action assembly to separate the needle bar drive block 211 from its corresponding needle bar 106, thus achieving needle locking.

[0047] Figure 9 A perspective view of a locking pin drive assembly 103 according to an embodiment of the present disclosure is shown. Figure 9As shown, in one or more embodiments of this disclosure, the pin drive assembly 103 may include a first drive arm 131 for connecting to the drive shaft of the pin drive source 101, a second drive arm 132 for transmitting the actuator 121, and one or more connectors 133 for transmitting the first drive arm 131 and the second drive arm 132. One end of the first drive arm 131 is connected to the drive shaft of the pin drive source 101, and the other end is connected to one or more connectors 133. The connectors are used to transmit the movement of the two drive arms, allowing the movement of the first drive arm 131 to be transmitted to the second drive arm 132, thereby enabling the pin drive source 101 to drive the pin actuator 210. The connectors may be rotatably driven shafts, belt-driven pulleys, oscillating linkages, etc. In one or more embodiments of this disclosure, a single linkage can be used to connect the first drive arm 131 and the second drive arm 132, simplifying the structure of the pin drive assembly. The first drive arm 131 can be a U-shaped connecting arm for easy transmission of rotational driving force. The end of the U-shaped connecting arm for connecting the drive shaft of the locking pin drive source 101 is provided with a bent metal strip or plastic rod, and both ends are provided with clamping pins or clamping bolts to clamp the output shaft of the locking pin drive source 101. The other end of the first drive arm 131 can be connected to the connecting rod through connecting pins or connecting bolts, thereby transmitting the rotational force of the drive shaft 111 to the connecting rod, causing the connecting rod to swing. The other end of the connecting rod can be connected to the second drive arm 132 through connecting pins or connecting bolts. The second drive arm 132 can be a U-shaped connecting arm for easy transmission of rotational driving force. The end of the U-shaped connecting arm for connecting the actuator 121 includes a bent metal strip or plastic rod, and both ends are provided with clamping pins or clamping bolts to clamp the locking pin actuator 121. The other arm of the second drive arm 132 is rotatably fixed, so that the second drive arm 132 can rotate around a fulcrum a under the drive of the locking pin drive source. In one or more embodiments of this disclosure, fulcrum a can be a rotating shaft rotatably mounted on the first connecting portion 1221. For example, fulcrum a can be a rotating shaft mounted on the first connecting portion via a bearing or bushing. The other end of the second drive arm can be fixed to the rotating shaft via a connecting pin or connecting bolt. The proximal end of the swing arm 1211 is fixed to the rotating shaft via a connecting pin or connecting bolt. The second drive arm 132, the swing arm 1211, and the rotating shaft can rotate synchronously. Therefore, the rotation of the lock pin drive source output shaft can drive the second drive arm to rotate via the first drive arm and the transmission component. The rotating shaft fixed to the second drive arm rotates synchronously with the rotation of the second drive arm, ultimately driving the swing arm fixed to the rotating shaft to swing. This structure simplifies the installation process of the lock pin drive mechanism. In one or more embodiments of this disclosure, fulcrum a can also be a fulcrum shaft fixedly mounted on the first connecting portion 1221. The other end of the second drive arm can be sleeved on the fulcrum shaft. Therefore, the rotation of the lock pin drive source output shaft can drive the second drive arm to rotate around the fulcrum shaft via the first drive arm and the transmission component.The swing arm 1211 is fixedly connected to the second drive arm 132 at a position away from the fulcrum axis, or the swing arm 1211 and the second drive arm 132 can be integrally formed. When the second drive arm 132 is driven to rotate about the fulcrum axis, the swing arm 1211 can swing along with the rotation of the second drive arm 132. This structure facilitates the individual replacement and maintenance of the fulcrum axis. In one or more embodiments of this disclosure, the second drive arm 132 and the swing arm 1211 can be disposed on the side of the first connecting portion 1221 facing the needle bar drive block, for example, both can be disposed on the side close to the internal space of the machine head. In one or more embodiments of this disclosure, the second drive arm 132 and the swing arm 1211 can also be disposed on different sides of the first connecting portion 1221, for example, the swing arm 1221 is connected to the side of the first connecting portion facing the needle bar drive block, and the second drive arm is located on the side of the first connecting portion away from the needle bar drive block.

[0048] In one or more embodiments of this disclosure, the locking pin drive mechanism may further include a reset member for resetting the actuating element, which resets the actuating element and holds it in its initial state. That is, when the locking pin drive source is activated or outputs driving force, the rocker arm of the locking pin actuating component swings out, acting on the pin bar drive block, causing the bayonet to deviate from the pin bar's fulcrum. When the locking pin drive source is deactivated or has no driving force output, the reset member can reset the rocker arm of the locking pin actuating component from its swing-out state and hold it in its initial state before swinging out. The reset member may be an elastic element such as a torsion spring or tension spring, or other deformable components. Figure 11 A schematic diagram showing the installation of a reset member according to an embodiment of the present disclosure is provided. Figure 11 As shown, in one or more embodiments of this disclosure, the reset member 105 may be a torsion spring acting on the first drive arm 131. The torsion spring is sleeved on the output shaft of the locking pin drive source, with one working end fixed and the other working end connected to the first drive arm 131. When the first drive arm swings, the torsion spring end connected to the first drive arm is stretched along with the swing of the first drive arm, and the torsion spring deforms. When the rotational torque of the locking pin drive source output shaft disappears, the torsion spring will drive the first drive arm 131 to reset and keep the rocker arm in its initial state. In one or more embodiments of this disclosure, the reset member 105 may also act on the actuator 121 of the locking pin actuation assembly in a similar manner.

[0049] In one or more embodiments of this disclosure, the connector can extend downwards and forwards through the interior of the machine head from the pin drive source above the machine head, connecting to the pin actuation assembly mounted on the front of the machine head. This mounting method protects the main transmission components within the machine head housing, enabling more stable operation. In another one or more embodiments of this disclosure, the connector can also extend downwards and forwards from the pin drive source above the machine head (outside the housing) connecting to the pin actuation assembly mounted on the front of the machine head. In one or more embodiments of this disclosure, a groove can be formed on the outer surface of the housing to accommodate the connector. In one or more embodiments of this disclosure, the connector can also connect the pin drive source and the pin actuation assembly overhead at a certain distance from the housing outside the machine head. This mounting method exposes the main transmission components outside the machine head housing, facilitating replacement and maintenance.

[0050] This disclosure also provides an embroidery machine head, which includes a housing and moving parts disposed within the housing. In one or more embodiments of this disclosure, the machine head further includes the locking needle drive mechanism 100 described in any of the above embodiments. By mounting the locking needle drive source above the embroidery machine head in this manner, a smaller installation distance is allowed on both sides of the embroidery machine head, improving the working efficiency of the embroidery machine and its advantages in small-area embroidery and the creation of intricate patterns.

[0051] This disclosure also provides an embroidery machine, including a main beam and a plurality of embroidery heads as described in any of the above embodiments mounted on the main beam, wherein the distance between adjacent embroidery heads is less than 150 mm.

[0052] 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 invention relates to a needle locking mechanism for embroidery machine, comprising: a needle locking driving source (101) for providing needle locking driving force to a needle head (20) of the embroidery machine, the needle locking driving source (101) being installed above the needle head (20); a needle locking action assembly (102) for separating a needle bar driving block (211) of the needle head (20) from a needle bar corresponding to the needle bar driving block, the needle locking action assembly (102) being connected to a front face of the needle head (20); and a needle locking transmission assembly (103) for transmission connection between the needle locking driving source (101) and the needle locking action assembly (102), the needle locking transmission assembly (103) comprising one or more connecting members above a main shaft of the embroidery machine.

2. A lock pin drive mechanism according to claim 1, wherein The needle locking action assembly (102) comprises: an action member (121) for separating the needle bar driving block (211) of the needle head from the needle bar corresponding to the needle bar driving block; and a mounting member (122) comprising a first connecting portion (1221) for connecting the action member and a second connecting portion (1222) facing the front face of the needle head (20), the second connecting portion being used for connecting the needle head.

3. A lock pin drive mechanism according to claim 2, wherein The needle locking driving source (101) is connected to the needle head (20) through a driving source mounting member.

4. A lock pin drive mechanism according to claim 3, wherein The driving source mounting member comprises a needle head connecting portion (111) facing the front face of the needle head and used for connecting the needle head.

5. A lock pin drive mechanism according to claim 2, wherein The needle locking driving source (101) is connected to a beam of the embroidery machine through the driving source mounting member.

6. A lock pin drive mechanism according to claim 5, wherein The driving source mounting member comprises a beam connecting portion facing the front face of the needle head and used for connecting the beam.

7. A lock pin drive mechanism according to claim 2 wherein, The action member (121) comprises a swing lever (1211) installed on the first connecting portion (1221) and rotating around a pivot point (a), and a rolling member (1212) is arranged at a distal end of the swing lever (1211) and used for contacting the needle bar driving block (211).

8. A lock pin drive mechanism according to claim 7, wherein The needle locking transmission assembly (103) further comprises a first driving arm (131) for connecting a driving shaft of the needle locking driving source (101) and a second driving arm (132) for transmission of the action member (121), the second driving arm rotating around the pivot point; and one or more connecting members (133) transmission connecting the first driving arm (131) and the second driving arm (132).

9. A lock pin drive mechanism according to claim 8, wherein, The pivot point (a) is a rotating shaft rotatably installed on the first connecting portion (1221), and the swing lever (1211) and the second driving arm (132) are fixed to the rotating shaft.

10. A lock pin drive mechanism according to claim 8, wherein The pivot point is a pivot shaft fixedly installed on the first connecting portion (1221), and the second driving arm (132) is fixedly connected to the swing lever (1211).

11. A lock pin drive mechanism according to claim 8, wherein The second driving arm (132) and the swing lever (1211) are located on the same side of the first connecting portion (1221).

12. A lock pin drive mechanism according to claim 8, wherein The second driving arm (132) and the swing lever (1211) are respectively located on different sides of the first connecting portion (1221).

13. A lock pin drive mechanism according to claim 2, wherein The needle locking driving mechanism further comprises a reset member (105) for resetting the action member (121).

14. A lock pin drive mechanism according to claim 8, wherein Further comprising a reset member (105) for resetting the action member (121), and the reset member acts on the first driving arm (131).

15. A lock pin drive mechanism according to claim 8, wherein Further comprising a reset member (105) for resetting the action member (121), and the reset member acts on the action member (121).

16. A lock pin drive mechanism according to claim 1 wherein, The connecting member (133) passes through the machine head (20) from top to bottom and forward inside the machine head.

17. A lock pin drive mechanism according to claim 1 wherein, The connecting member (133) is located outside the machine head.

18. An embroidery head (20) characterized by, An embroidery machine (10) comprising the lock needle driving mechanism (100) according to any one of claims 1-17.

19. An embroidery machine, characterized in that An embroidery machine head (20) according to claim 18.

20. A machine according to claim 19, characterised in that, The head distance adjacent to the embroidery machine head (20) is less than 150mm.

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