A device for threading embroidery needles

Abstract

The application belongs to the technical field of threading devices, and discloses a threading device for embroidery needles, which comprises a shell, the shell has a threading side, the threading side is provided with a placing groove for placing the embroidery needle, and the shell is provided with a rotating shaft, the rotating shaft has a connecting end extending to the threading side from the shell, the connecting end is connected with a thread hooking component, the thread hooking component can rotate around the rotating shaft to pass through the placing groove, and the threading device further comprises a thread pushing assembly. The threading device adopts a threading mode with the same threading direction as the needle hole direction, when the embroidery needle is placed in the placing groove, the thread rope in the thread passing channel can be clamped into the thread groove and moved together with the thread pushing component through the movement of the thread pushing assembly, and when the thread pushing component drives the thread rope to pass through the needle hole of the embroidery needle, the thread rope passing through the needle hole of the embroidery needle can be hooked by the rotation of the thread hooking component, so that the front threading is realized, and the operation is more convenient.

Description

Technical Field

[0001] This invention belongs to the technical field of threading devices, specifically relating to a threading device for embroidery needles. Background Technology

[0002] When sewing machines are sewing items, the needle and thread often break, requiring manual threading of the thread through the needle hole. This can take a long time, so people usually use a threader to assist with threading. Threaders on the market are designed to thread a single needle (sewing needle or other sewing machine needle) from the side. However, the needle hole of a computerized embroidery machine faces forward, and the space behind it is also small, only a few millimeters, making it inconvenient to operate. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an embroidery needle threading device to solve the problem that it is inconvenient to operate when threading the needle from the side in existing embroidery needles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A needle threading device includes a housing with a threading side and a slot for placing the needle. The housing is also provided with a rotating shaft with a connecting end that extends out of the housing and to the threading side. The connecting end is connected to a hooking component, which can rotate around the axis of the rotating shaft to pass through the slot.

[0006] The housing is provided with a thread pushing assembly, which includes a thread pushing channel, a thread pushing component, and a driving component. The thread pushing channel is formed inside the housing and communicates with the placement slot. The thread pushing component has a thread pushing end that passes through the thread pushing channel and can move relative to the thread pushing channel. The size of the thread pushing end is smaller than or equal to the size of the embroidery needle's eye, and the thread pushing end has a thread groove. The driving component is connected to the thread pushing component so that the thread pushing end of the thread pushing component can pass through the thread pushing channel into the placement slot and through the eye of the embroidery needle.

[0007] The housing also forms a thread passage that passes through the thread pusher and forms a thread pusher station at their overlap. When the thread pusher passes the thread pusher station, the thread exposed at the thread pusher station is embedded in the thread groove of the thread pusher and passes through the needle hole of the embroidery needle along with the thread pusher, so that the thread is hooked by the hooking member that passes through the placement groove.

[0008] In a possible implementation, the hooking component includes a hooking blade connected to the connecting end, the hooking blade having a hooking portion, and the distance between the hooking portion and the rotating shaft is greater than or equal to the distance between the rotating shaft and the placement groove.

[0009] In a possible implementation, the housing is further provided with a vertically penetrating wire-holding groove, which is connected to the wire-passing channel, and the wire-holding groove forms a wire-holding inlet on one side of the housing.

[0010] In one possible implementation, the driving component includes a push block slidably connected to the housing. The push block has a connecting portion that extends into the housing and is connected to the push wire component, so as to drive the push wire component to move by means of the push block.

[0011] In a possible implementation, the wire pushing component includes a sliding base and a wire pushing blade, the wire pushing blade being connected to the sliding base and having the wire pushing end; the sliding base is slidably connected to the housing.

[0012] The push block is connected to the sliding seat through the connecting part.

[0013] In one possible implementation, the top of the housing is provided with a groove, the sliding seat is slidably connected in the groove, and a return spring is provided between the sliding seat and the groove.

[0014] The connecting part includes a movable limiting shaft connected to the pushing block. The sliding seat is provided with a limiting groove corresponding to the movable limiting shaft, and the movable limiting shaft has at least a limiting state. When the movable limiting shaft is in the limiting state, the movable limiting shaft extends into the limiting groove and forms a limiting relationship in the direction in which the sliding seat can move. The pushing block has a first movable distance relative to the housing, and the pushing block has a threading limit position and a starting position within the first movable distance. When the pushing block is within the first movable distance, the movable limiting shaft is in the limiting state.

[0015] In a possible implementation, the rotating shaft is movably connected to the housing to enable the rotating shaft to rotate and move axially, and a torsion spring is sleeved on the outside of the rotating shaft, with one end of the torsion spring fixedly connected to the rotating shaft and the other end of the torsion spring fixedly connected to the housing.

[0016] The rotating shaft is provided with a retaining shaft facing the pushing block, and the pushing block is provided with a linkage part, which forms a limiting relationship in the direction in which the pushing block can move;

[0017] The push block also has a second movable distance. The second movable distance and the first movable distance together constitute the distance that the push block can move in the housing. When the linkage part of the push block moves into the second movable distance, the push block drives the rotating shaft to move through the limiting cooperation between the linkage part and the locking shaft, so that the torsion spring can be stretched to generate a rotational action, and the hooking component connected to the rotating shaft can perform a rotating hooking action.

[0018] The movable limiting shaft also has a non-limited state. When the pushing block moves to the second movable distance, the movable limiting shaft is in a non-limited state and disengages from the limiting groove.

[0019] In a possible implementation, the linkage includes two mutually spaced first limiting blocks and second limiting blocks, with the first limiting block located in front of the second limiting block and the locking shaft located between the first limiting block and the second limiting block.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The embroidery needle threading device of the present invention adopts a threading method in which the threading direction is the same as the needle hole direction. When the embroidery needle is placed in the placement groove, the movement of the thread pushing component can cause the thread in the thread passage to be inserted into the thread groove and move together with the thread pushing component. After the thread pushing component drives the thread through the needle hole of the embroidery needle, the rotation of the hooking component can hook the thread that has passed through the vacuum of the embroidery needle, thereby realizing threading from the front and making the operation more convenient.

[0022] Furthermore, by using a hooking knife that rotates with the shaft as the hooking component, the rotational action can more accurately hook the rope passing through the wire hole and pull it a certain length, making it easier to pull the rope. In addition, the wire-holding groove set in the housing makes it easier for the rope to enter the wire passage, making it easier to hold the rope.

[0023] Meanwhile, the pusher component of the pusher assembly can move linearly by pushing the block, enabling the pusher component to push the wire and return to the starting position. Furthermore, the return spring allows the pusher component to automatically return to its starting position after the wire is threaded, so that the wire can be detached from the pusher end of the pusher component. This allows for better wire hooking and further improves the portability of operation.

[0024] Furthermore, the push block employs a one-button linkage mechanism that sequentially drives the wire pushing component and the rotating shaft to push and hook the wire respectively. Through the segmented connection between the push block and the wire pushing component, the push block can sequentially drive the wire pushing component and the rotating shaft as it moves to different positions. By driving the rotating shaft to move axially, the torsion spring can be stretched, and the stretched torsion spring can generate a certain angle of rotation. Through this force conversion, one-button drive for threading and hooking the wire can be achieved. The structural design is ingenious and reasonable, greatly improving the convenience of operation. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of an embodiment of this application;

[0026] Figure 2 This is a front view of an embodiment of this application;

[0027] Figure 3 Side view of an embodiment of this application

[0028] Figure 4 This is a bottom view of an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the push block and rotating shaft in a disassembled state according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the wire pusher blade according to an embodiment of this application;

[0031] Figure 7 This is a schematic diagram illustrating the usage of an embroidery needle in an embodiment of this application.

[0032] In the diagram: 1-Housing; 11-Placement slot; 12-Thread passage; 13-Thread inlet; 14-Thread slot; 15-Thread threading side; 2-Rotating shaft; 3-Thread pushing assembly; 31-Thread pushing knife; 311-Thread pushing end; 312-Thread groove; 313-Oval elongated hole; 32-Sliding seat; 33-Reset spring; 34-Thread pushing channel; 35-Slide groove; 36-Push block; 361-Modular limiting shaft; 362-First limiting block; 363-Second limiting block; 4-Thread hooking component; 41-Thread hooking knife; 42-Arc hook; 5-Fixing sleeve; 6-Torsion spring; 7-Thread; 8-Embroidery needle; 81-Needle hole; 9-Clipping shaft. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] Please refer to Figure 1-7 As shown, an embodiment of this application provides an embroidery needle threading device, including a housing 1. The housing 1 has a threading side 15, and the threading side 15 is provided with a placement groove 11 for placing an embroidery needle 8. The housing 1 is provided with a rotating shaft 2, and the rotating shaft 2 has a connecting end that extends out of the housing 1 and extends to the threading side 15. The connecting end is connected to a hooking component 4. The hooking component 4 can rotate around the axis of the rotating shaft 2 to pass through the placement groove 11.

[0036] The housing 1 houses each component and serves as the carrier of the device. It can be a single piece, a separate piece, or composed of multiple structural plates; there are no restrictions. One side of the housing 1 is designated as the threading side 15, but other sides can also be used. Considering the need for threading from the front and the limited width, the housing 1 can be made into a cuboid, with one end face serving as the threading side 15. A hooking component 4 is provided on the threading side 15. The hooking component 4 can rotate via a rotating shaft 2. The shaft 2 can be driven manually or by a motor or other components. The hooking component 4 has a certain length, allowing it to pass through the placement slot 11 and hook the thread during rotation.

[0037] To simultaneously achieve thread pushing, in the embodiments of this application, the housing 1 is provided with a thread pushing assembly 3. The thread pushing assembly 3 includes a thread pushing channel 34, a thread pushing component, and a driving component. The thread pushing channel 34 is formed inside the housing 1 and communicates with the placement groove 11. The thread pushing component has a thread pushing end 311 that passes through the thread pushing channel 34 and is movable relative to the thread pushing channel 34. The size of the thread pushing end 311 is smaller than or equal to the size of the needle hole 81 of the embroidery needle 8, and the thread pushing end 311 has a thread groove 312. The driving component is connected to the thread pushing component so that the thread pushing end 311 of the thread pushing component can pass through the thread pushing channel 34 into the placement groove 11 and pass through the needle hole 81 of the embroidery needle 8.

[0038] The thread-pushing channel 34 facilitates the linear movement of the thread-pushing end 311 of the thread-pushing component under the drive of the driving component, and allows the thread to pass through the needle hole 81 of the embroidery needle 8. The placement of the embroidery needle 8 requires alignment of the thread-pushing channel 34 with the needle hole 81. Since the embroidery needle 8 is fixed to the embroidery machine or sewing machine, the height of the housing 1 can be designed so that the height of the thread-pushing channel 34 is the same as the height of the needle hole 81 when placed on a flat surface, thus making alignment easier. Through the thread groove 312 of the thread-pushing end 311, the thread 7 on the movement path can be embedded or locked into the thread groove 312 when the thread-pushing component moves, and moves together with the thread-pushing component. This allows the thread 7 to be threaded as it passes through the needle hole 81 along with the thread-pushing end 311.

[0039] Based on this, the housing 1 also forms a thread-passing channel 12, which passes through the thread-pushing channel 34 and forms a thread-pushing station at the overlapping part of the two. When the thread-pushing end 311 passes through the thread-pushing station, the thread 7 exposed at the thread-passing station is embedded in the thread groove 312 of the thread-pushing component and passes through the needle hole 81 of the embroidery needle 8 along with the thread-pushing end 311, so that the thread 7 is hooked by the hooking component 4 passing through the placement groove 11. The thread-passing channel 12 facilitates the passage of the thread 7, and because the thread-passing channel 12 intersects with or is connected to the thread-pushing channel 34, the thread 7 in the thread-passing channel 12 can be partially exposed in the thread-pushing channel 34. In this way, when the thread-pushing component passes through the thread-pushing station formed by the overlap of the two channels, the thread-pushing component can make the thread 7 get stuck in the thread groove 312 so that it can move together with the thread-pushing component.

[0040] With the above technical solution, the threading direction is the same as the needle hole 81 direction. When the embroidery needle 8 is placed in the placement groove 11, the movement of the thread pushing component 3 can cause the thread 7 located in the thread passage 12 to be inserted into the thread groove 312 and move together with the thread pushing component. After the thread pushing component drives the thread 7 through the needle hole 81 of the embroidery needle 8, the thread hook component 4 can hook the thread 7 that has passed through the vacuum of the embroidery needle 8, thereby realizing threading from the front, making the operation more convenient.

[0041] In one embodiment, the hooking component 4 includes a hooking blade 41 connected to the connecting end. The hooking blade 41 has a hooking portion, and the distance between the hooking portion and the rotating shaft 2 is greater than or equal to the distance between the rotating shaft 2 and the placement groove 11.

[0042] In this way, the hooking part at the end of the hooking knife 41 can hook the line by passing through the placement groove 11 during rotation. Since the direction of hooking is basically perpendicular to the moving direction of the pushing part, after the pushing part brings the line 7 through the needle hole 81, it can hook at least one of the two strands of the same bent line 7. Then, by continuing to rotate, the line 7 can be pulled out to a longer length, which facilitates the line pulling operation. Specifically, the hooking part is formed in the arc-shaped hook 42 at the end of the hooking knife 41.

[0043] Furthermore, the housing 1 is also provided with a vertically penetrating wire-holding groove 14, which is connected to the wire-passing channel 12, and the wire-holding groove 14 forms a wire-holding inlet 13 on one side of the housing 1.

[0044] In this way, the thread 7 to be threaded can be inserted into the thread slot 14 through the thread inlet 13 on one side of the housing 1, and can enter the thread passage 12 through the thread slot 14 for threading, making the arrangement of the thread 7 more convenient and faster.

[0045] In an embodiment of this application, the driving component includes a push block 36 slidably connected to the housing 1. The push block 36 has a connecting portion that passes through the housing 1 and is connected to the push wire component, so as to drive the push wire component to move through the push block 36.

[0046] The wire pushing component of the wire pushing assembly 3 can move linearly by pushing the block 36, enabling it to push the wire and return to its starting position. The push block 36 is operated by the user, causing it to move the wire pushing component along with it. In practice, for better sliding, the push block 36 can be slidably installed on the corresponding side of the housing 1 by opening a slide rail or a through groove 35.

[0047] Furthermore, in a preferred embodiment of the wire pushing component, the wire pushing component includes a sliding seat 32 and a wire pushing blade 31, the wire pushing blade 31 being connected to the sliding seat 32 and having the wire pushing end 311; the sliding seat 32 being slidably connected to the housing 1; and the pushing block 36 being connected to the sliding seat 32 through the connecting portion.

[0048] In this way, the pusher blade 31 can move more stably via the sliding seat 32, and the sliding seat 32 is connected to the push block 36 through the connecting part, making the structural design more reasonable and the movement more stable. In the specific implementation process, the head of the pusher blade 31 can be provided with at least one oblong hole 313, and fasteners such as screws can be used to fix it to the sliding seat 32 through the oblong hole 313. This not only achieves fixation, but also facilitates adjustment of the relative position of the pusher blade 31 with respect to the sliding seat 32, so as to reach the target position more accurately.

[0049] To further facilitate the automatic reset of the component after threading, the top of the housing 1 is provided with a groove 35, the sliding seat 32 is slidably connected in the groove 35, and a reset spring 33 is provided between the sliding seat 32 and the groove 35; the connecting part includes a movable limiting shaft 361 connected to the pushing block 36, the sliding seat 32 is provided with a limiting groove (not shown in the figure) corresponding to the movable limiting shaft 361, and the movable limiting shaft 361 has at least a limiting state. When the movable limiting shaft 361 is in the limiting state, the movable limiting shaft 361 extends into the limiting groove and forms a limiting relationship in the direction in which the sliding seat 32 can move. The pushing block 36 has a first movable distance relative to the housing 1, and the pushing block 36 has a threading limit position and a starting position within the first movable distance. When the pushing block 36 is within the first movable distance, the movable limiting shaft 361 is in the limiting state. Since the push block 36 is slidably mounted, it can move within a first movable distance. Correspondingly, within this distance range, it has a threading limit position and a starting position. When the push block 36 moves to the threading limit position, the thread-pushing end 311 of the thread-pushing knife 31 pushes the thread 7 through the vacuum of the embroidery needle 8. The starting position refers to the initial position. The return spring 33 allows the thread-pushing component to automatically spring back after threading. In this design, the push block 36 can be reset together with the sliding seat 32 under the limiting cooperation of the movable limit shaft 361 and the limit groove.

[0050] Based on the pusher assembly 3, the rotating shaft 2, and the hook assembly 4, in order to achieve one-button linkage operation control via the push block 36, the rotating shaft 2 is movably connected to the housing 1 so that the rotating shaft 2 can rotate and move axially. A torsion spring 6 is sleeved on the outside of the rotating shaft 2, one end of the torsion spring 6 is fixedly connected to the rotating shaft 2, and the other end of the torsion spring 6 is fixedly connected to the housing 1. The rotating shaft 2 is provided with a retaining shaft 9 facing the push block 36, and the push block 36 is provided with a linkage part, which forms a limiting relationship in the direction in which the push block 36 can move. The push block 36 also has a second movable distance, and the second movable distance... The distance and the first movable distance together constitute the distance that the push block 36 can move in the housing 1. When the linkage part of the push block 36 moves into the second movable distance, the push block 36 drives the rotating shaft 2 to move through the limiting cooperation between the linkage part and the locking shaft 9, so that the torsion spring 6 can be stretched to generate a rotational action, and the hooking component 4 connected to the rotating shaft 2 can rotate and hook the line. The movable limiting shaft 361 also has a non-limited state. When the push block 36 moves into the second movable distance, the movable limiting shaft 361 is in a non-limited state and the movable limiting shaft 361 is disengaged from the limiting groove.

[0051] The rotating shaft 2 can rotate and move along its axis within a certain distance. In conjunction with the torsion spring 6 mounted on it, when the rotating shaft 2 is moved by the pushing component, the torsion spring 6 is stretched. The torsion spring 6 twists during stretching, and upon release, it causes the rotating shaft 2 to rotate at a certain angle. This rotation of the rotating shaft 2 hooks and pulls the thread 7 passing through the needle hole 81. The pushing block 36 can move a second movable distance beyond the first movable distance. The first segment primarily drives the thread-pushing component to move and allow the thread-pushing end 311 to pass through the needle hole 81. Further movement allows it to enter the second movable distance. The second segment primarily uses the linkage of the pushing block 36 to drive the locking pin 9 on the rotating shaft 2, enabling the rotating shaft 2 to move and thus stretching the torsion spring 6. Meanwhile, the movable limiting shaft 361 has two states: a limited state and a non-limited state. The two states can be achieved or switched by installing the movable limiting shaft 361 using a through-push block 36 movable mounting method. Specifically, pressing one end through the push block 36 causes the other end to engage in the limiting groove, and then pushing the push block 36 achieves the limited state. To switch to the non-limited state, pressing the movable limiting shaft 361 and continuing to push the push block 36 allows the movable limiting shaft 361 to slide out through the arc-shaped groove, thus switching to the non-use state. Alternatively, the movable limiting shaft 361 can also be an elastically extendable shaft structure, which, combined with the arc-shaped groove, can also achieve the switching between the two states. Secondly, the movable distance is greater than or equal to that of the rotating shaft 2, allowing the torsion spring 6 to stretch to a rotational distance, making the movement more efficient and the structural arrangement more compact.

[0052] In specific implementation, the linkage includes two mutually spaced first limiting blocks 362 and second limiting blocks 363. The first limiting block 362 is located in front of the second limiting block 363, and the retaining shaft 9 is located between the first limiting block 362 and the second limiting block 363. The second limiting block 363 is used to drive the retaining shaft 9 to move the rotating shaft 2, and the first limiting block 362 is used to drive the retaining shaft 9 to reset the rotating shaft 2.

[0053] In addition, in order to better restrict the torsion spring 6 on the rotating shaft 2, a fixing sleeve 5 can be provided on the outside of the torsion spring 6.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A needle threading device for embroidery, characterized in that: Includes a housing (1), the housing (1) has a threading side (15), the threading side (15) is provided with a placement groove (11) for placing embroidery needles (8), and the housing (1) is provided with a rotating shaft (2), the rotating shaft (2) has a connecting end that extends out of the housing (1) and extends to the threading side (15), the connecting end is connected to a hooking component (4), the hooking component (4) can rotate around the axis of the rotating shaft (2) to pass through the placement groove (11); The housing (1) is provided with a pusher assembly (3), which includes a pusher channel (34), a pusher component and a drive component. The pusher channel (34) is formed inside the housing (1) and communicates with the placement groove (11). The pusher component has a pusher end (311) that passes through the pusher channel (34) and can move relative to the pusher channel (34). The size of the pusher end (311) is smaller than or equal to the size of the needle hole (81) of the embroidery needle (8). The pusher end (311) has a thread groove (312). The drive component is connected to the pusher component so that the pusher end (311) of the pusher component can pass through the pusher channel (34) into the placement groove (11) and through the needle hole (81) of the embroidery needle (8). The housing (1) also forms a thread passage (12), which passes through the thread pusher (34) and forms a thread pusher station at the overlapping part of the two. When the thread pusher (311) passes through the thread pusher station, the thread (7) exposed at the thread pusher station is embedded in the thread groove (312) of the thread pusher and passes through the needle hole (81) of the embroidery needle (8) along with the thread pusher (311), so that the thread (7) is hooked by the hooking member (4) passing through the placement groove (11).

2. The embroidery needle threading device according to claim 1, characterized in that: The hooking component (4) includes a hooking knife (41) connected to the connecting end. The hooking knife (41) has a hooking part, and the distance between the hooking part and the rotating shaft (2) is greater than or equal to the distance between the rotating shaft (2) and the placement groove (11).

3. The embroidery needle threading device according to claim 1, characterized in that: The housing (1) is also provided with a wire-holding groove (14) that runs vertically through the housing (1). The wire-holding groove (14) is connected to the wire passage (12), and the wire-holding groove (14) forms a wire-holding inlet (13) on one side of the housing (1).

4. A needle threading device according to any one of claims 1-3, characterized in that: The driving component includes a push block (36) slidably connected to the housing (1). The push block (36) has a connecting part that passes through the housing (1) and is connected to the push wire component so as to drive the push wire component to move through the push block (36).

5. The embroidery needle threading device according to claim 4, characterized in that: The wire pushing component includes a sliding base (32) and a wire pushing blade (31). The wire pushing blade (31) is connected to the sliding base (32) and has the wire pushing end (311). The sliding base (32) is slidably connected to the housing (1). The push block (36) is connected to the sliding seat (32) through the connecting part.

6. The embroidery needle threading device according to claim 5, characterized in that: The top of the housing (1) is provided with a sliding groove (35), the sliding seat (32) is slidably connected in the sliding groove (35), and a return spring (33) is provided between the sliding seat (32) and the sliding groove (35); The connecting part includes a movable limiting shaft (361) connected to the push block (36). The sliding seat (32) is provided with a limiting groove corresponding to the movable limiting shaft (361). The movable limiting shaft (361) has at least a limiting state. When the movable limiting shaft (361) is in the limiting state, the movable limiting shaft (361) extends into the limiting groove and forms a limiting relationship in the direction in which the sliding seat (32) can move. The push block (36) has a first movable distance relative to the housing (1). The push block (36) has a threading limit position and a starting position within the first movable distance. When the push block (36) is within the first movable distance, the movable limiting shaft (361) is in the limiting state.

7. The embroidery needle threading device according to claim 6, characterized in that: The rotating shaft (2) is movably connected to the housing (1) so that the rotating shaft (2) can rotate and move along the axial direction. A torsion spring (6) is sleeved on the outside of the rotating shaft (2). One end of the torsion spring (6) is fixedly connected to the rotating shaft (2), and the other end of the torsion spring (6) is fixedly connected to the housing (1). The rotating shaft (2) is provided with a retaining shaft (9) facing the pushing block (36), and the pushing block (36) is provided with a linkage part, which forms a limiting relationship in the direction in which the pushing block (36) can move; The push block (36) also has a second movable distance. The second movable distance and the first movable distance together constitute the distance that the push block (36) can move in the housing (1). When the linkage part of the push block (36) moves into the second movable distance, the push block (36) drives the rotating shaft (2) to move through the limiting cooperation between the linkage part and the locking shaft (9), so that the torsion spring (6) can be stretched to generate a rotational action, and the hooking component (4) connected to the rotating shaft (2) can perform a rotating hooking action. The movable limiting shaft (361) also has a non-limited state. When the push block (36) moves to the second movable distance, the movable limiting shaft (361) is in a non-limited state and the movable limiting shaft (361) is disengaged from the limiting groove.

8. The embroidery needle threading device according to claim 7, characterized in that: The linkage includes two mutually spaced first limiting blocks (362) and second limiting blocks (363), the first limiting block (362) is located in front of the second limiting block (363), and the locking shaft (9) is located between the first limiting block (362) and the second limiting block (363).

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