Embroidery needle driving shaft structure

Abstract

The embodiment of the utility model relates to the technical field of computerized embroidery machines, in particular to an embroidery needle driving shaft structure which comprises a first embroidery needle driving shaft connected with all taping embroidery machine heads; the second embroidery needle driving shaft is connected with all the plain embroidery machine heads; the power device I is connected with the first embroidery needle driving shaft and is used for driving the first embroidery needle driving shaft to rotate; the power device II is connected with the second embroidery needle driving shaft and is used for driving the second embroidery needle driving shaft to rotate. According to the embroidery needle driving shaft structure provided by the embodiment of the specification, the taping embroidery machine head is driven by the first embroidery needle driving shaft, and the plain embroidery machine head is driven by the second embroidery needle driving shaft, so that when the taping embroidery machine head works, parts of the plain embroidery machine head cannot be abraded, and when the plain embroidery machine head works, the parts of the taping embroidery machine head cannot be abraded; therefore, under the same working time, the abrasion degree of machine head parts can be effectively reduced.

Description

TECHNICAL FIELD

[0001] One or more embodiments of the present specification relate to the technical field of computerized embroidery machines, and in particular to an embroidery needle driving shaft structure. BACKGROUND

[0002] A computerized embroidery machine is an automated device controlled by a computer, used for embroidering on cloth or other materials. It can automatically complete complex embroidery work according to pre-designed patterns and instructions. Compared with traditional hand embroidery, computerized embroidery machines can greatly improve production efficiency and ensure the consistency of patterns and the stability of quality for each product. With the continuous enrichment of embroidery products, consumers have increasingly high requirements for the types of embroidery products, and the market requires the combination of flat embroidery, ribbon embroidery, and rope embroidery processes in embroidery machines. Therefore, existing computerized embroidery machines usually set up both flat embroidery heads and disc ribbon embroidery heads (disc ribbon embroidery is a combination of rope embroidery and ribbon embroidery).

[0003] However, the existing computerized embroidery machine drives the flat embroidery head and the disc ribbon embroidery head by only one embroidery needle driving shaft. When the disc ribbon embroidery head is working, the embroidery needle driving shaft not only drives the embroidery needle of the disc ribbon embroidery head to move, but also drives some parts of the flat embroidery head to move, causing the parts of the flat embroidery head to wear out. Similarly, when the flat embroidery head is working, the embroidery needle driving shaft not only drives the embroidery needle of the flat embroidery head to move, but also drives some parts of the disc ribbon embroidery head to move, causing the parts of the disc ribbon embroidery head to wear out.

[0004] In summary, the existing embroidery needle driving shaft structure causes the parts of the head to wear out severely, which in turn shortens the service life of the head of the computerized embroidery machine. SUMMARY

[0005] To solve the above problems, one or more embodiments of the present specification describe an embroidery needle driving shaft structure.

[0006] An embroidery needle driving shaft structure comprises:

[0007] a first embroidery needle driving shaft connected with all disc ribbon embroidery heads;

[0008] a second embroidery needle driving shaft connected with all flat embroidery heads;

[0009] a power device one connected with the first embroidery needle driving shaft, used for driving the first embroidery needle driving shaft to rotate;

[0010] a power device two connected with the second embroidery needle driving shaft, used for driving the second embroidery needle driving shaft to rotate.

[0011] As a preferred, the power device one comprises:

[0012] a bearing one, the movable part of which is connected with the first embroidery needle driving shaft;

[0013] a pulley one A, the inner ring part of which is connected with the first embroidery needle driving shaft;

[0014] a driving motor one;

[0015] a pulley one B, the inner ring part of which is connected with the output shaft of the driving motor one;

[0016] a driving belt one, connecting the outer ring part of the pulley one A and the outer ring part of the pulley one B.

[0017] As a preference, the power device one further comprises:

[0018] a bearing mounting frame one, connecting the embroidery machine frame with the fixed part of the bearing one;

[0019] a motor mounting frame one, connecting the embroidery machine frame with the driving motor one;

[0020] The embroidery machine frame is further provided with a cavity one allowing the driving belt one to pass through.

[0021] As a preference, the power device two comprises:

[0022] a bearing two, the movable part of which is connected with the second embroidery needle driving shaft;

[0023] a pulley two A, the inner ring part of which is connected with the second embroidery needle driving shaft;

[0024] a driving motor two;

[0025] a pulley two B, the inner ring part of which is connected with the output shaft of the driving motor two;

[0026] a driving belt two, connecting the outer ring part of the pulley two A and the outer ring part of the pulley two B.

[0027] As a preference, the power device two further comprises:

[0028] a bearing mounting frame two, connecting the embroidery machine frame with the fixed part of the bearing two;

[0029] a motor mounting frame two, connecting the embroidery machine frame with the driving motor two;

[0030] The embroidery machine frame is further provided with a cavity two allowing the driving belt two to pass through.

[0031] As a preference, the flat embroidery machine head is provided with an avoiding space allowing the first embroidery needle driving shaft to pass through along the length direction of the driving shaft, and the avoiding space is surrounded by a supporting cover.

[0032] As a preference, the shell of the disc belt embroidery machine head is provided with a through hole allowing the second embroidery needle driving shaft to pass through.

[0033] As preferred, the embroidery needle driving shaft structure further comprises:

[0034] The first encoder is connected with the first embroidery needle driving shaft, and is used to acquire a first rotation angle value corresponding to a rotation position of the first embroidery needle driving shaft.

[0035] As preferred, the embroidery needle driving shaft structure further comprises:

[0036] The second encoder is connected with the second embroidery needle driving shaft, and is used to acquire a second rotation angle value corresponding to a rotation position of the second embroidery needle driving shaft.

[0037] As preferred, the first embroidery needle driving shaft is connected with a needle bar driving assembly of the disc band embroidery machine head; and the second embroidery needle driving shaft is connected with a needle bar driving assembly of the flat embroidery machine head.

[0038] Advantageous effects

[0039] The embroidery needle driving shaft structure provided by the embodiment of the present specification is used to drive the disc band embroidery machine head through the first embroidery needle driving shaft and drive the flat embroidery machine head through the second embroidery needle driving shaft, so that the parts of the flat embroidery machine head will not be abraded when the disc band embroidery machine head works, and the parts of the disc band embroidery machine head will not be abraded when the flat embroidery machine head works, thereby effectively reducing the abrasion degree of the parts of the machine head under the same working time, and further effectively prolonging the service life of the computer embroidery machine head.

[0040] Further or more detailed advantageous effects will be described in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0042] Figure 1 is a structure schematic diagram of a first view angle of a mixed machine head structure of a computer embroidery machine in an embodiment of the present specification;

[0043] Figure 2 is a structure schematic diagram of a second view angle of a mixed machine head structure of a computer embroidery machine in an embodiment of the present specification;

[0044] Figure 3 is a partial structure schematic diagram of a power device one in an embodiment of the present specification;

[0045] Figure 4 is another partial structure schematic diagram of a power device one in an embodiment of the present specification;

[0046] Figure 5 is a partial structural schematic diagram of a power device two in an embodiment of the present specification;

[0047] Figure 6 is another partial structural schematic diagram of the power device two in an embodiment of the present specification;

[0048] Figure 7 is a structural schematic diagram of an avoiding space in an embodiment of the present specification. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0050] In the following description, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The following description provides a plurality of embodiments of the present application, and different embodiments can be replaced or combined, so that the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, the present application should also be considered to include an embodiment including one or more of all other possible combinations of A, B, C, and D, although this embodiment can not be explicitly described in the following content.

[0051] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes can be made to the functions and arrangements of described elements without departing from the scope of the present application. Various examples can appropriately omit, replace, or add various processes or components. For example, the described methods can be performed in a different order from the described order, and various steps can be added, omitted, or combined. In addition, features described with respect to some examples can be combined into other examples.

[0052] Embodiment 1:

[0053] An embroidery needle driving shaft structure, as shown in Figure 1 and Figure 2 The embroidery needle driving shaft structure includes a first embroidery needle driving shaft 300 and a second embroidery needle driving shaft 400.

[0054] The first embroidery needle driving shaft 300 is connected to all disc band embroidery heads 100, and each disc band embroidery head 100 is provided below with a rotating shuttle assembly 500.

[0055] The second embroidery needle driving shaft 400 is connected to all flat embroidery heads 200, and each flat embroidery head 200 is also provided below with a rotating shuttle assembly 500.

[0056] The embroidery needle drive shaft structure also includes: power unit one and power unit two.

[0057] The power unit is connected to the first embroidery needle drive shaft 300 and is used to drive the first embroidery needle drive shaft 300 to rotate.

[0058] The second power unit is connected to the second embroidery needle drive shaft 400 and is used to drive the second embroidery needle drive shaft 400 to rotate.

[0059] This embodiment features two embroidery needle drive shafts: a first embroidery needle drive shaft 300 and a second embroidery needle drive shaft 400. When the ribbon embroidery machine head 100 is operating, only the first embroidery needle drive shaft 300 drives the embroidery needles of the ribbon embroidery machine head 100. At this time, the flat embroidery machine head 200 does not require any operation; that is, the operation of the ribbon embroidery machine head 100 does not cause any wear on any parts of the flat embroidery machine head 200. Similarly, when the flat embroidery machine head 200 is operating, only the second embroidery needle drive shaft 400 drives the embroidery needles of the flat embroidery machine head 200. At this time, the ribbon embroidery machine head 100 does not require any operation; that is, the operation of the flat embroidery machine head 200 does not cause any wear on any parts of the ribbon embroidery machine head 100.

[0060] Since the ribbon embroidery head 100 in this embodiment is driven by the first embroidery needle drive shaft 300, and the flat embroidery head 200 is driven by the second embroidery needle drive shaft 400, the ribbon embroidery head 100 will not cause wear to the parts of the flat embroidery head 200 when it is working, and the flat embroidery head 200 will not cause wear to the parts of the ribbon embroidery head 100 when it is working. Therefore, under the same working time, the wear of the head parts can be effectively reduced, thereby effectively extending the service life of the computer embroidery machine head.

[0061] Furthermore, such as Figure 3 and Figure 4 As shown, the power unit of this embodiment includes: bearing 310, pulley A320, drive motor, pulley B330 and drive belt.

[0062] The movable part of bearing 310 is connected to the first embroidery needle drive shaft 300. The fixed part of bearing 310 is connected to the embroidery machine frame 900 via bearing mounting bracket 340. Multiple bearings 310 can be installed on the first embroidery needle drive shaft 300 according to actual usage requirements. Bearings 310 provide support for the first embroidery needle drive shaft 300 and allow it to rotate.

[0063] The inner ring of pulley A320 is connected to the first embroidery needle drive shaft 300. Depending on the actual usage requirements, one, two, or more pulleys A320 can be installed on the first embroidery needle drive shaft 300.

[0064] The inner ring part of the belt pulley B330 is connected with the output shaft of the driving motor one. There are several belt pulleys A320, and there are several belt pulleys B330 correspondingly. There are several belt pulleys B330, and there are several driving motors one correspondingly. The driving motor one is connected with the embroidery machine rack 900 through the motor mounting rack one 350. The driving motor one is electrically connected with the controller, and the running state of the driving motor one can be controlled through the controller (for example, the driving motor one is controlled to start, or the driving motor one is controlled to stop, or the rotating speed of the driving motor one is adjusted, etc.).

[0065] The driving belt one connects the outer ring part of the belt pulley A320 and the outer ring part of the belt pulley B330. The embroidery machine rack 900 is also provided with a cavity one 910 allowing the driving belt one to pass through. The driving belt one, the belt pulley A320, the belt pulley B330 and the driving motor one cooperate to provide power for the rotation of the first embroidery needle driving shaft 300.

[0066] Working principle: the driving motor one drives the belt pulley B330 to rotate, the belt pulley B330 drives the driving belt one to rotate, the driving belt one drives the belt pulley A320 to rotate, and the belt pulley A320 drives the first embroidery needle driving shaft 300 to rotate. When there are multiple driving motors one, only the working frequency of the multiple driving motors one needs to be the same.

[0067] The power device one of the embodiment can provide sufficient driving force for the first embroidery needle driving shaft 300, so that the first embroidery needle driving shaft 300 can stably and smoothly rotate.

[0068] Further, as shown in Figure 5 and Figure 6 The power device two of the embodiment includes: a bearing two 410, a belt pulley two A420, a driving motor two, a belt pulley two B430 and a driving belt two.

[0069] The movable part of the bearing two 410 is connected with the second embroidery needle driving shaft 400. The fixed part of the bearing two 410 is connected with the embroidery machine rack 900 through the bearing mounting rack two 440. According to actual use requirements, multiple bearing two 410 can be arranged on the second embroidery needle driving shaft 400. The bearing two 410 supports the second embroidery needle driving shaft 400 and allows the second embroidery needle driving shaft 400 to rotate.

[0070] The inner ring part of the belt pulley two A420 is connected with the second embroidery needle driving shaft 400. According to actual use requirements, one or two or multiple belt pulley two A420 can be arranged on the second embroidery needle driving shaft 400.

[0071] The inner ring part of the belt wheel two B430 is connected with the output shaft of the driving motor two. There are several belt wheel two A420, and there are several belt wheel two B430 correspondingly. There are several belt wheel two B430, and there are several driving motors two correspondingly. The driving motor two is connected with the embroidery machine rack 900 through the motor mounting frame two 450. The driving motor two is electrically connected with the controller, and the running state of the driving motor two can be controlled through the controller (for example, the driving motor two is started, or the driving motor two is stopped, or the rotating speed of the driving motor two is adjusted, etc.).

[0072] The driving belt two connects the outer ring part of the belt wheel two A420 and the outer ring part of the belt wheel two B430. The embroidery machine rack 900 is also provided with a cavity two 920 allowing the driving belt two to pass through. The driving belt two, the belt wheel two A420, the belt wheel two B430 and the driving motor two cooperate to provide power for the rotation of the second embroidery needle driving shaft 400.

[0073] Working principle: the driving motor two drives the belt wheel two B430 to rotate, the belt wheel two B430 drives the driving belt two to rotate, the driving belt two drives the belt wheel two A420 to rotate, and the belt wheel two A420 drives the second embroidery needle driving shaft 400 to rotate. When there are multiple driving motors two, only the working frequency of the multiple driving motors two needs to be the same.

[0074] The power device two of the embodiment can provide sufficient driving force for the second embroidery needle driving shaft 400, so that the second embroidery needle driving shaft 400 can stably and smoothly rotate.

[0075] Further, as shown in Figure 7 The flat embroidery machine head 200 in the embodiment is provided with an avoiding space allowing the first embroidery needle driving shaft 300 to pass through along the length direction of the driving shaft, and the avoiding space is surrounded by a supporting cover 360. The supporting cover 360 is connected and fixed with the embroidery machine rack 900, and plays a role of shielding and protecting the first embroidery needle driving shaft 300.

[0076] Through the setting of the avoiding space, the first embroidery needle driving shaft 300 does not contact with the flat embroidery machine head 200, and when the first embroidery needle driving shaft 300 drives the disc belt embroidery machine head 100 to work, it will not cause any influence to the flat embroidery machine head 200, and will not cause abrasion to the parts of the flat embroidery machine head 200.

[0077] Further, the shell of the disc belt embroidery machine head 100 in the embodiment is provided with a perforation allowing the second embroidery needle driving shaft 400 to pass through. The diameter of the perforation is greater than the diameter of the second embroidery needle driving shaft 400.

[0078] Through the arrangement of the through hole, the second embroidery needle driving shaft 400 does not contact the disc-belt embroidery machine head 100, and when the second embroidery needle driving shaft 400 drives the flat embroidery machine head 200 to work, it does not affect the disc-belt embroidery machine head 100, and thus does not cause wear to the parts of the disc-belt embroidery machine head 100.

[0079] Further, the embroidery needle driving shaft structure further comprises: a first encoder and a second encoder.

[0080] The first encoder is connected with the first embroidery needle driving shaft 300, and the first encoder is used to obtain a first rotation angle value corresponding to a rotation position of the first embroidery needle driving shaft 300.

[0081] The first encoder is a prior art, and the first encoder is connected and fixed with the first embroidery needle driving shaft 300. No matter where the first embroidery needle driving shaft 300 rotates clockwise or counterclockwise, a corresponding first rotation angle value can be obtained through the first encoder. For example, when the first embroidery needle driving shaft 300 rotates clockwise to position D1 (assuming that a base point is arranged on the first embroidery needle driving shaft 300, and the base point is located directly above), a corresponding first rotation angle value d1 (assuming 0 degrees) can be obtained through the first encoder; when the first embroidery needle driving shaft 300 rotates clockwise to position D2 (assuming that the base point is located on the right side), a corresponding first rotation angle value d2 (assuming 90 degrees) can be obtained through the first encoder; when the first embroidery needle driving shaft 300 rotates clockwise to position D3 (assuming that the base point is located directly below), a corresponding first rotation angle value d3 (assuming 180 degrees) can be obtained through the first encoder.

[0082] And since the installation position of the first encoder and the first embroidery needle driving shaft 300 is fixed, even if another first encoder is replaced, as long as the first embroidery needle driving shaft 300 rotates clockwise to position D1 (i.e., the base point is located directly above), the first rotation angle value d1 obtained is still 0 degrees; the first embroidery needle driving shaft 300 rotates clockwise to position D2 (i.e., the base point is located on the right side), and the first rotation angle value d2 obtained is still 90 degrees; the first embroidery needle driving shaft 300 rotates clockwise to position D3 (i.e., the base point is located directly below), and the first rotation angle value d3 obtained is still 180 degrees.

[0083] In summary, the first embroidery needle driving shaft 300 rotates to any position, and the first encoder can obtain the first rotation angle value corresponding to the position. As long as the first embroidery needle driving shaft 300 rotates to the same position, the first rotation angle value obtained by the first encoder is the same. The first encoder is electrically connected with the controller, and the controller can determine the position of the first embroidery needle driving shaft 300 through the first rotation angle value obtained by the first encoder.

[0084] The second encoder is connected with the second embroidery needle driving shaft 400, and the second encoder is used to obtain the second rotation angle value corresponding to the rotation position of the second embroidery needle driving shaft 400.

[0085] Similarly, the second encoder itself is prior art, and the second encoder is connected and fixed with the second embroidery needle driving shaft 400. No matter the second embroidery needle driving shaft 400 rotates clockwise or counterclockwise to which position, the second encoder can obtain a corresponding second rotation angle value. For example, when the second embroidery needle driving shaft 400 rotates clockwise to position F1 (assuming that a base point is arranged on the second embroidery needle driving shaft 400, and the base point is located on the left side), a corresponding second rotation angle value f1 (assuming 0 degrees) can be obtained through the second encoder; when the second embroidery needle driving shaft 400 rotates clockwise to position F2 (assuming that the base point is located directly above), a corresponding second rotation angle value f2 (assuming 90 degrees) can be obtained through the second encoder; when the second embroidery needle driving shaft 400 rotates clockwise to position F3 (assuming that the base point is located on the right side), a corresponding second rotation angle value f3 (assuming 180 degrees) can be obtained through the second encoder.

[0086] And since the installation position of the second encoder and the second embroidery needle driving shaft 400 is fixed, even if another second encoder is replaced, as long as the second embroidery needle driving shaft 400 rotates clockwise to position F1 (i.e., the base point is located on the left side), the second rotation angle value f1 obtained is still 0 degrees; the second embroidery needle driving shaft 400 rotates clockwise to position F2 (i.e., the base point is located directly above), and the second rotation angle value f2 obtained is still 90 degrees; the second embroidery needle driving shaft 400 rotates clockwise to position F3 (i.e., the base point is located on the right side), and the second rotation angle value f3 obtained is still 180 degrees.

[0087] In summary, the second embroidery needle driving shaft 400 rotates to any position, and the second rotation angle value corresponding to the position can be obtained by the second encoder. As long as the second embroidery needle driving shaft 400 rotates to the same position, the second rotation angle value obtained by the second encoder is the same. The second encoder is electrically connected with the controller, and the second rotation angle value obtained by the second encoder can determine the position of the second embroidery needle driving shaft 400.

[0088] Further, the first embroidery needle driving shaft 300 in the embodiment is connected with the needle bar driving assembly of the disc and belt embroidery machine head 100, and the second embroidery needle driving shaft 400 is connected with the needle bar driving assembly of the flat embroidery machine head 200. The needle bar driving assembly of the embodiment can be directly used in the prior art. The rotation of the first embroidery needle driving shaft 300 or the second embroidery needle driving shaft 400 can drive the needle bar driving assembly to move, and the movement of the needle bar driving assembly can drive the needle bar of the disc and belt embroidery machine head 100 or the flat embroidery machine head 200 to move up and down. The needle bar moves up and down once for each rotation of the first embroidery needle driving shaft 300 or the second embroidery needle driving shaft 400.

[0089] The above merely illustrates the exemplary embodiments of the present application, and cannot limit the scope of the present application.

Claims

1. An embroidery needle drive shaft structure, characterized by, The embroidery needle driving shaft structure comprises: a first embroidery needle driving shaft (300) connected with the whole disc and belt embroidery machine head (100); a second embroidery needle driving shaft (400) connected with the whole flat embroidery machine head (200); a power device one connected with the first embroidery needle driving shaft (300) and used for driving the first embroidery needle driving shaft (300) to rotate; a power device two connected with the second embroidery needle driving shaft (400) and used for driving the second embroidery needle driving shaft (400) to rotate.

2. The embroidery needle drive shaft structure according to claim 1, wherein The power device one comprises: a bearing one (310) with a movable part connected with the first embroidery needle driving shaft (300); a pulley one A (320) with an inner ring part connected with the first embroidery needle driving shaft (300); a driving motor one; a pulley one B (330) with an inner ring part connected with an output shaft of the driving motor one; a driving belt one connected with an outer ring part of the pulley one A (320) and an outer ring part of the pulley one B (330).

3. The embroidery needle drive shaft structure according to claim 2, wherein The power device one further comprises: a bearing mounting rack one (340) connecting the embroidery machine rack (900) with a fixed part of the bearing one (310); a motor mounting rack one (350) connecting the embroidery machine rack (900) with the driving motor one; The embroidery machine rack (900) is further provided with a cavity one (910) allowing the driving belt one to pass through.

4. The embroidery needle drive shaft structure according to claim 1, wherein The power device two comprises: a bearing two (410) with a movable part connected with the second embroidery needle driving shaft (400); a pulley two A (420) with an inner ring part connected with the second embroidery needle driving shaft (400); a driving motor two; a pulley two B (430) with an inner ring part connected with an output shaft of the driving motor two; a driving belt two connected with an outer ring part of the pulley two A (420) and an outer ring part of the pulley two B (430).

5. The embroidery needle drive shaft structure according to claim 4, wherein The power device two further comprises: a bearing mounting rack two (440) connecting the embroidery machine rack (900) with a fixed part of the bearing two (410); a motor mounting rack two (450) connecting the embroidery machine rack (900) with the driving motor two; The embroidery machine rack (900) is further provided with a cavity two (920) allowing the driving belt two to pass through.

6. The embroidery needle drive shaft structure according to claim 1, wherein The flat embroidery machine head (200) is provided with an avoiding space allowing the first embroidery needle driving shaft (300) to pass through along the length direction of the driving shaft, and the avoiding space is surrounded by a support cover (360).

7. The embroidery needle drive shaft structure according to claim 1, wherein The shell of the disc and belt embroidery machine head (100) is provided with a through hole allowing the second embroidery needle driving shaft (400) to pass through.

8. The embroidery needle drive shaft structure according to claim 1, wherein, The embroidery needle driving shaft structure further comprises: a first encoder connected with the first embroidery needle driving shaft (300), the first encoder being used for acquiring a first rotation angle value corresponding to a rotation position of the first embroidery needle driving shaft (300).

9. The embroidery needle drive shaft structure according to claim 1, wherein The embroidery needle driving shaft structure further comprises: a second encoder connected with the second embroidery needle driving shaft (400), the second encoder being used for acquiring a second rotation angle value corresponding to a rotation position of the second embroidery needle driving shaft (400).

10. The embroidery needle drive shaft structure according to claim 1, wherein, The first embroidery needle driving shaft (300) is connected with a needle bar driving assembly of the disc band embroidery machine head (100); the second embroidery needle driving shaft (400) is connected with a needle bar driving assembly of the flat embroidery machine head (200).

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