Needle bar separating and resetting structure and sewing machine with same

Abstract

The utility model provides a needle bar separating and resetting structure and a sewing machine with the same, the needle bar separating and resetting structure comprises a driving component, the driving component comprises a driving motor, the driving motor is provided with an output shaft, the output shaft is provided with a transmission connecting rod, and the extension direction of the transmission connecting rod is perpendicular to the extension direction of the output shaft; the rotary motion of the output shaft is converted into reciprocating motion along a set direction; one end of the transmission part is connected with the end, away from the driving motor, of the transmission connecting rod, the other end of the transmission part is connected with a sliding block, and the sliding block can be used in cooperation with a double-needle rod of the double-needle sewing machine so as to drive one needle rod in the double-needle rod or the double-needle rod to do reciprocating motion at the same time under the driving of the driving part and the transmission part; the problem that in the prior art, a double-needle machine is difficult to separate in the working process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing technical field, specifically, a needle bar separation reset structure and sewing machine with it. BACKGROUND

[0002] In the sewing industry, double needle machine can complete double line stitch at the same time, and is widely used in the process of making delicate decorative seam, reinforcing thread, etc., which greatly improves the production efficiency and sewing quality. However, when facing complex patterns that need corner sewing, the limitations of traditional double needle machine are obvious, which becomes a major obstacle to work efficiency and sewing accuracy.

[0003] The traditional corner sewing operation needs the operator to manually adjust the needle bar position frequently during the sewing process, and the special separation wrench assembly is pulled to control the left and right sliding of the separation rod assembly, so as to realize single needle bar sewing and complete accurate corner sewing. However, this control method depending on manual intervention has the following obvious problems:

[0004] 1. Operation complexity and error-prone: manual operation of the separation wrench assembly not only requires the operator to have high skills and attention, but also increases the probability of errors due to human operation uncertainty during high-speed sewing, especially when dealing with dense corners or fine patterns, it is extremely difficult to accurately control the position of the needle bar.

[0005] 2. Low efficiency: before each corner sewing, the operator needs to stop sewing, manually adjust the needle bar separation, and then restart the sewing machine, which consumes a lot of valuable time and seriously limits the production efficiency of double needle machine when sewing complex patterns.

[0006] 3. Fluctuation of sewing quality: due to the inaccuracy of manual adjustment and the frequency of sewing interruption, the quality of the finally sewn corners is often difficult to meet the consistent high standard, which affects the overall appearance and durability of the product.

[0007] In summary, the manual separation control mechanism of the traditional double needle machine during corner sewing is not only complex and error-prone, but also reduces the sewing efficiency and challenges the stability of the sewing quality. SUMMARY

[0008] The main purpose of the utility model is to provide a needle bar separation reset structure and a sewing machine with it, to solve the problem of difficulty in separation of the double needle machine in the prior art during work.

[0009] In order to achieve the above purpose, according to one aspect of the utility model, a needle bar separation reset structure is provided, comprising:

[0010] A drive component includes a drive motor having an output shaft. A transmission connecting rod is provided on the output shaft. The transmission connecting rod extends in a direction perpendicular to the extension direction of the output shaft to convert the rotational motion of the output shaft into reciprocating motion along a set direction.

[0011] A transmission component, one end of the transmission component is connected to the end of the transmission connecting rod away from the drive motor, and the other end of the transmission component is connected to a slider. The slider can be used in conjunction with the double needle bar of the double needle sewing machine to drive one of the double needle bars or the double needle bars to perform reciprocating motion at the same time under the drive of the driving component and the transmission component.

[0012] Furthermore, the transmission connecting rod includes: a first connecting end, the first connecting end is provided with a connecting through hole, the output shaft can extend into the connecting through hole and be detachably connected to the connecting through hole;

[0013] The second connecting end is provided with a hinged through hole, and the hinged through hole is connected to one end of the transmission component.

[0014] Furthermore, the transmission connecting rod further includes: a transition section, the transition section having a first end and a second end, the first end being connected to the first connecting end, and the second end being connected to the second connecting end;

[0015] The width of the transition section, which is perpendicular to its extension direction, gradually decreases from the first end to the second end.

[0016] Furthermore, a fastening through hole is formed on an end of the first connecting end away from the second connecting end, and the fastening through hole extends from the first connecting end to the second connecting end;

[0017] The fastening component has a fastening end that can extend into the fastening through hole and abut against the outer surface of the output shaft.

[0018] Furthermore, the fastening through hole is provided with an internal thread, and the outer peripheral surface of the fastening component is provided with an external thread, and the internal thread is meshed with the external thread;

[0019] The fastening end is provided with an arc-shaped contact surface, and the curvature of the arc-shaped contact surface is adapted to the curvature of the output shaft.

[0020] Furthermore, the transmission component includes:

[0021] A pull rod, one end of which is hinged to one end of the transmission connecting rod;

[0022] The limiting frame has a limiting plate fixedly connected to the sewing head of the double-needle sewing machine, and a first guide plate and a second guide plate relatively arranged at both ends of the limiting plate. The pull rod passes through the first guide plate and the second guide plate in sequence, and is movably arranged relative to the first guide plate and the second guide plate.

[0023] Furthermore, the transmission component also includes:

[0024] The sliding frame is arranged in the limiting space formed by the limiting frame, and the sliding frame comprises a first sliding plate, one end of the first sliding plate is fixedly connected with the pull rod, and the other end of the first sliding plate is used for being connected with the sliding block.

[0025] Further, the sliding frame further comprises:

[0026] A second sliding plate is oppositely arranged with the first sliding plate.

[0027] A first connecting plate is arranged, and the extension direction of the first connecting plate is the extension direction of the pull rod, and the two ends of the first connecting plate are respectively provided with the first sliding plate and the second sliding plate.

[0028] Further, one end of the second sliding plate away from the first connecting plate is provided with a protruding sliding block.

[0029] The limiting plate is provided with a sliding groove, and the extension direction of the sliding groove is parallel to the extension direction of the pull rod.

[0030] The protruding sliding block can slide in the sliding groove.

[0031] Further, the transmission component further comprises:

[0032] A second connecting plate is arranged, and one end of the second connecting plate is connected with the first sliding plate.

[0033] A reset plate is arranged, one end of the reset plate is connected with one end of the second connecting plate away from the first sliding plate, and the other end of the reset plate away from the second connecting plate is connected with the sliding block.

[0034] The extension directions of the second connecting plate and the reset plate are both perpendicular to the extension directions of the sliding block and the first connecting plate.

[0035] According to another aspect of the utility model, a sewing machine is provided, and the sewing machine has the needle bar separation reset structure.

[0036] According to the technical scheme of the utility model, the driving motor is used as a driving source, the output shaft of the driving motor is connected with the transmission connecting rod perpendicularly, the accurate rotation of the driving motor can be converted into the reciprocating motion of the transmission connecting rod, and the movement of the sliding block can be precisely controlled. The design not only simplifies the needle bar separation process, but also realizes the efficient and accurate separation and reset of the single needle bar or the double needle bar through the accurate control of the driving motor, and the precision and speed of corner sewing and pattern sewing are remarkably improved.

[0037] Compared to traditional manual operation, this mechanism automatically controls the separation and reset of the needle bar through a drive motor, significantly simplifying the operation process, reducing operator workload, and minimizing human error. This improves the machine's automation level and production efficiency. Operators no longer need to frequently interrupt the sewing process for manual adjustments, enabling continuous sewing and improving work efficiency.

[0038] The drive motor not only drives the needle bar to separate and reposition, but also serves as a signal source, working in conjunction with the automatic control device to achieve intelligent stitch count control. Based on the complexity of the sewing pattern and the required stitch length, the automatic control device can adjust the drive motor's pulse frequency and direction in real time, intelligently selecting single or double needle operation to meet diverse sewing needs and enhance the sewing machine's intelligent operation capabilities.

[0039] By coordinating the slider and needle bar, this structure can flexibly adapt to different sewing needs. Whether it is fine corners that require single-needle sewing or straight lines sewn by two needle bars, it can achieve fast switching and precise control. This not only improves the sewing quality of the double-needle sewing machine, but also enhances its adaptability and flexibility in handling various sewing tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0041] Figure 1 A schematic diagram of the needle rod separation and reset structure of an embodiment of the present application is shown in a first viewing angle;

[0042] Figure 2 The embodiment of the present application is shown Figure 1 A magnified view of point A in FIG;

[0043] Figure 3 A schematic diagram showing a second perspective of the needle bar separation and reset structure of an embodiment of the present application;

[0044] Figure 4 Shows an embodiment of the present application Figure 3 Magnified view of point B in FIG.

[0045] The above drawings include the following reference numerals:

[0046] 1. Driving motor; 2. Output shaft; 3. Transmission connecting rod; 301. First connecting end; 302. Connecting through hole; 303. Second connecting end; 304. Hinge through hole; 305. Transition section; 306. Fastening through hole; 4. Slider; 5. Pull rod; 6. Limiting frame; 601. Limiting plate; 602. First guide plate; 603. Second guide plate; 604. Sliding groove; 7. Sliding frame; 701. First sliding plate; 702. Second sliding plate; 703. First connecting plate; 704. Protruding slider; 8. Second connecting plate. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] In the sewing industry, double-needle machines, capable of simultaneously producing two stitches, are widely used to create delicate decorative hems and reinforced seams, significantly improving production efficiency and sewing quality. However, when faced with complex patterns requiring corner sewing, the limitations of traditional double-needle machines become apparent, becoming a major obstacle to work efficiency and sewing precision.

[0049] Traditional corner sewing requires the operator to frequently manually adjust the needle bar position during the sewing process. This involves turning a special release lever assembly to control the left and right sliding of the release lever assembly, thereby achieving single-needle sewing and completing precise corner sewing. However, this manual control method has the following significant problems:

[0050] 1. Operational complexity and error-proneness: Manually operating the release wrench assembly not only requires the operator to have high skills and attention, but also the uncertainty of human operation during high-speed sewing greatly increases the probability of error. Especially when dealing with dense corners or fine patterns, it becomes extremely difficult to accurately control the position of the needle bar.

[0051] 2. Low efficiency: Before each corner sewing, the operator needs to stop sewing, manually adjust the needle bar separation, and then restart the sewing machine. This process consumes a lot of valuable time and seriously limits the production efficiency of the double-needle machine when sewing complex patterns.

[0052] 3. Fluctuation in sewing quality: Due to the inaccuracy of manual adjustment and the frequent interruptions of sewing, the quality of the final sewn corners is often difficult to reach a consistent high standard, affecting the overall appearance and durability of the product.

[0053] In summary, the manual separation control mechanism of traditional double-needle machines during corner sewing is not only complex and error-prone, reducing sewing efficiency, but also poses a challenge to the stability of sewing quality.

[0054] The main purpose of the utility model is to provide a needle bar separation and reset structure and a sewing machine having the same, so as to solve the problem of difficulty in separation of double-needle machines in the prior art during operation.

[0055] First, the present application provides a needle bar separation and reset structure, comprising: a driving component, the driving component including a driving motor 1, the driving motor 1 having an output shaft 2, a transmission connecting rod 3 being provided on the output shaft 2, and the extension direction of the transmission connecting rod 3 being perpendicular to the extension direction of the output shaft 2, so as to convert the rotational motion of the output shaft 2 into reciprocating motion along a set direction;

[0056] A transmission component, one end of the transmission component is connected to the end of the transmission connecting rod 3 away from the drive motor 1, and the other end of the transmission component is connected to a slider 4. The slider 4 can be used in conjunction with the double needle bar of the double needle sewing machine to drive one of the double needle bars or the double needle bars to perform reciprocating motion at the same time under the drive of the driving component and the transmission component.

[0057] Specifically, the present application provides a needle rod separation and reset structure, such as Figure 1 As shown, the needle bar separation and reset structure includes a driving motor 1, which has an output shaft 2. A transmission connecting rod 3 is provided on the output shaft 2, and the extension direction of the transmission connecting rod 3 is perpendicular to the extension direction of the output shaft 2. When the output shaft 2 is rotated by the driving motor 1, the transmission connecting rod 3 provided on the output shaft 2 will also rotate synchronously. Because the rotation angle of the output shaft 2 is limited, the transmission connecting rod 3 can reciprocate in the set direction. A transmission component is provided at the end of the transmission connecting rod 3 away from the output shaft 2, and a slider 4 is provided at the other end of the transmission component. The slider 4 belongs to the prior art and will not be described here. The slider 4 can be used in conjunction with the double needle bar of the double needle sewing machine. When the driving motor 1 starts working, the output shaft 2 will rotate under the action of the driving motor 1. At the same time, the transmission connecting rod 3 will also reciprocate in the set direction. Figure 1 In the embodiment, when the transmission connecting rod 3 reciprocates, the transmission component also reciprocates. In this process, the transmission component also drives the slider 4 to move at the same time. Because of the cooperation between the slider 4 and the double needle bar, it is possible to drive one of the double needle bars to operate, or drive the double needle bars to reciprocate at the same time.

[0058] Using a drive motor 1 as the driving source, its output shaft 2, through a vertical connection to a transmission connecting rod 3, can precisely convert the precise rotation of the drive motor 1 into the reciprocating motion of the transmission connecting rod 3, thereby precisely controlling the movement of the slider 4. This design not only simplifies the needle bar separation process, but also achieves efficient and precise separation and reset of single or double needle bars through the precise control of the drive motor 1, significantly improving the accuracy and speed of corner sewing and pattern sewing.

[0059] Compared with traditional manual operation, this structure automatically controls the separation and reset of the needle bar by driving the motor 1, greatly simplifying the operation process, reducing the operator's labor intensity, reducing human operating errors, and improving the automation level and production efficiency of the sewing machine. The operator does not need to frequently interrupt the sewing process for manual adjustments, which helps to achieve continuous sewing and improve work efficiency.

[0060] Drive motor 1 not only drives the needle bar to separate and reposition, but also acts as a signal source, working in conjunction with the automatic control device to achieve intelligent stitch count control. Based on the complexity of the sewing pattern and the required stitch length, the automatic control device can adjust the pulse frequency and direction of drive motor 1 in real time, intelligently selecting single or double needle operation to meet diverse sewing needs and enhance the sewing machine's intelligent operation capabilities.

[0061] By coordinating the slider 4 with the needle bar, this structure can flexibly adapt to different sewing needs, whether it is fine corner sewing with a single needle bar or straight sewing with two needle bars sewing synchronously, it can achieve fast switching and precise control. This not only improves the sewing quality of the double needle sewing machine, but also enhances its adaptability and flexibility in handling various sewing tasks.

[0062] Furthermore, the transmission connecting rod 3 includes: a first connecting end 301, a connecting through hole 302 is provided on the first connecting end 301, and the output shaft 2 can extend into the connecting through hole 302 and be detachably connected to the connecting through hole 302;

[0063] The second connecting end 303 is provided with a hinged through hole 304 , and the hinged through hole 304 is connected to one end of the transmission component.

[0064] Specifically, the structure of the transmission connecting rod 3 is as follows: Figure 2 As shown, it includes a first connecting end 301 directly connected to the output shaft 2, and a connecting through hole 302 is opened on the first connecting end 301. The extension direction of the connecting through hole 302 is consistent with the extension direction of the output shaft 2. One end of the output shaft 2 extends into the connecting through hole 302 and is connected to the connecting through hole 302. The first connecting end 301 and the output shaft 2 can be connected by a threaded connection or a welding connection. The transmission connecting rod 3 also includes a second connecting end 303. The second connecting end 303 is provided with a hinged through hole 304, and a hinge shaft is provided in the hinged through hole 304. The other end of the hinge shaft is rotatably provided in the transmission component to connect the second connecting end 303 with the transmission component through the hinge shaft.

[0065] Furthermore, the transmission connecting rod 3 further includes: a transition section 305, the transition section 305 having a first end and a second end, the first end being connected to the first connecting end 301, and the second end being connected to the second connecting end 303;

[0066] The width of the transition section 305 perpendicular to its extension direction gradually decreases from the first end to the second end.

[0067] Specifically, the transmission link 3 also includes a transition section 305, which has a first end and a second end, the first connecting end 301 is connected to the first end, and the second end is connected to the second connecting end 303. The transmission link 3 can be made as a whole or in parts. In addition, the transition section 305 gradually decreases in the direction from the first end to the second end along a shorts perpendicular to its extension direction. This design can reduce the weight of the transmission link 3 itself as much as possible while ensuring the connection strength between the first end and the first connecting end 301, and the second end and the second connecting end 303.

[0068] The designed first connecting end 301 connects to the output shaft 2 via the connecting hole 302, ensuring that the rotational force output by the drive motor 1 is transmitted to the transmission connecting rod 3 without delay or loss, thereby converting it into precise reciprocating motion in the set direction. This efficient force transmission and motion conversion mechanism is the key to achieving needle bar separation and reset, ensuring accurate and reliable operation.

[0069] The connection between the transmission connecting rod 3 and the output shaft 2 not only allows for quick assembly and disassembly and adjustment via threads, but also allows for enhanced structural stability through welding and other methods to adapt to different working environments and usage requirements. This diverse connection method not only improves the convenience of assembly and maintenance, but also ensures the stability and safety of the transmission connecting rod during high-speed operation.

[0070] Furthermore, a fastening through hole 306 is formed on one end of the first connecting end 301 away from the second connecting end 303 , and the fastening through hole 306 extends from the first connecting end 301 to the second connecting end 303 ;

[0071] The fastening component has a fastening end which can extend into the fastening through hole 306 and abut against the outer surface of the output shaft 2 .

[0072] Furthermore, the fastening through hole 306 has an internal thread, and the outer peripheral surface of the fastening component is provided with an external thread, and the internal thread is engaged with the external thread;

[0073] The fastening end is provided with an arc-shaped contact surface, and the curvature of the arc-shaped contact surface is adapted to the curvature of the output shaft 2 .

[0074] Specifically, a fastening through hole 306 is further provided on the first connecting end 301. Figure 2As shown, the extension direction of the fastening through hole 306 is consistent with the extension direction of the transmission connecting rod 3, and a fastening component is further used in cooperation with the fastening through hole 306. In this embodiment, the fastening component can be a fastening bolt. The fastening component can extend into the fastening through hole 306, and the fastening end of the fastening component can abut against the outer surface of the output shaft 2 to ensure that the transmission connecting rod 3 does not loosen or separate from the output shaft 2 during operation. The fastening end is further provided with an arc-shaped contact surface, the curvature of the arc-shaped contact surface faces the output shaft 2, and the curvature of the arc-shaped contact surface is consistent with the curvature of the output shaft 2, so as to increase the contact area between the arc-shaped contact surface and the output shaft 2.

[0075] The cooperation of the fastening through hole 306 added at the first connecting end 301 and the fastening component (such as a fastening bolt) ensures the firm connection between the transmission connecting rod 3 and the output shaft 2. The fastening end of the fastening bolt is designed with an arc-shaped contact surface consistent with the curvature of the output shaft 2, which increases the contact area, effectively disperses the stress at the connection, prevents loosening or separation of the connection part during long-term operation or impact, and significantly improves the safety and reliability of the equipment operation.

[0076] The close cooperation of the fastening component and the first connecting end 301 optimizes the force transmission path and reduces the loss of force during transmission. Under the drive of the driving motor 1, the rotary force of the output shaft 2 can be more directly and efficiently transmitted to the transmission connecting rod 3 through the support of the fastening component, thereby affecting the motion state of the needle bar and improving the force transmission efficiency and response speed of the overall system.

[0077] The precise layout of the fastening through hole 306 and the matching use of the fastening component provide a high-precision positioning point for the assembly of the transmission connecting rod 3, simplify the assembly process, and reduce the assembly error.

[0078] Further, the transmission component includes a pull rod 5, one end of the pull rod 5 being hingedly connected to one end of the transmission connecting rod 3.

[0079] A limiting frame 6 having a limiting plate 601 fixedly connected to the sewing head of the double-needle sewing machine, and a first guide plate 602 and a second guide plate 603 oppositely arranged at both ends of the limiting plate 601, the pull rod 5 sequentially passing through the first guide plate 602 and the second guide plate 603 and being movably arranged relative to the first guide plate 602 and the second guide plate 603.

[0080] Specifically, the transmission component includes a pull rod 5 hingedly connected to the transmission connecting rod 3, as shown in Figure 1 , Figure 3 As shown, the extension direction of the pull rod 5 is perpendicular to the extension direction of the transmission connecting rod 3, and further includes a limiting frame 6, the structure of the limiting frame 6 being as shown in Figure 4As shown, the limiting frame 6 includes a limiting plate 601, which is used to connect with the sewing head of the double-needle sewing machine to limit the pull rod 5 in Figure 1 The movement in the vertical direction ensures that the pull rod 5 can reciprocate in the set direction. The limit frame 6 also includes a first guide plate 602 and a second guide plate 603 provided at both ends of the limit plate 601. Active holes are respectively provided on the first guide plate 602 and the second guide plate 603. One end of the pull rod 5 is passed through the active hole of the first guide plate 602 and can pass through the active hole of the second guide plate 603 to reciprocate along the arrangement direction of the first guide plate 602 and the second guide plate 603.

[0081] The introduction of the limit frame 6 structure, particularly the combination of the limit plate 601 with the first and second guide plates 602 and 603, provides a stable guide path for the pull rod 5. The connection between the limit plate 601 and the sewing head restricts the vertical freedom of the pull rod 5, ensuring precise reciprocating motion along the set direction (i.e., along the alignment of the first and second guide plates 602 and 603). This design prevents the pull rod 5 from drifting or shaking during movement, improving control accuracy and motion stability.

[0082] Furthermore, the transmission component also includes: a sliding frame 7, which is arranged in the limiting space formed by the limiting frame 6, and the sliding frame 7 includes a first sliding plate 701, one end of the first sliding plate 701 is fixedly connected to the pull rod 5, and the other end of the first sliding plate 701 is used to connect with the slider 4.

[0083] Furthermore, the sliding frame 7 further includes: a second sliding plate 702 , the second sliding plate 702 being arranged opposite to the first sliding plate 701 ;

[0084] The first connecting plate 703 extends in the same direction as the pull rod 5 . A first sliding plate 701 and a second sliding plate 702 are respectively provided at both ends of the first connecting plate 703 .

[0085] Specifically, a limited space is formed between the first guide plate 602, the second guide plate 603 and the limiting plate 601, and the transmission component further includes a sliding frame 7 arranged in the limited space. Figure 4 As shown, the sliding frame 7 includes a first sliding plate 701 fixedly connected to the pull rod 5, and the other end of the first sliding plate 701 is used to connect with the slider 4 to drive the slider 4 to move. The sliding frame 7 also includes a second sliding plate 702 arranged opposite to the first sliding plate 701, and also includes a first connecting plate 703 connecting the first sliding plate 701 and the second sliding plate 702. During use, the sliding frame 7 as a whole will move with the movement of the pull rod 5 to drive the slider 4 to move together, thereby realizing the separation and resetting of the needle bar.

[0086] The design of the sliding frame 7 within the limited space avoids direct interference with other mechanical components, optimizes the structural layout, and improves the operating efficiency of the entire mechanical system. The rational design of the limited space ensures the freedom of movement of the sliding frame 7, reduces friction and resistance during movement, reduces wear, and extends the service life of the equipment.

[0087] The stable linkage between the sliding frame 7 and the pull rod 5 and the slider 4 ensures the precise control of the separation and reset of the needle bar, reduces the stitch deviation, and improves the quality of the sewing pattern. At the same time, it reduces the downtime caused by uncoordinated movement and speeds up the sewing process, especially when dealing with continuous corners and complex patterns, thereby improving production efficiency, shortening the sewing cycle, and enhancing the production capacity and market competitiveness of the sewing machine.

[0088] Furthermore, a protruding slider 704 is provided at one end of the second sliding plate 702 that is relatively far away from the first connecting plate 703;

[0089] The limiting plate 601 is provided with a sliding groove 604, and the extending direction of the sliding groove 604 is parallel to the extending direction of the pull rod 5;

[0090] The protruding slider 704 can slide in the sliding groove 604 .

[0091] Furthermore, a protruding slider 704 is provided at one end of the second sliding plate 702 away from the first connecting plate 703, and a sliding groove 604 is provided at a position corresponding to the limiting plate 601 and the protruding slider 704. The protruding slider 704 can slide in the sliding groove 604 to ensure that the pull rod 5 can reciprocate in the set direction.

[0092] The coordinated design of the protruding slider 704 and the sliding groove 604 provides precise guidance for the movement of the pull rod 5, ensuring stable reciprocating motion in the set direction. This guiding mechanism greatly enhances the controllability and stability of the pull rod 5's movement, reducing deviation and shaking during movement, which is crucial for maintaining the precise separation and reset of the sewing machine needle bar.

[0093] The sliding movement of the protruding slider 704 within the sliding groove 604 optimizes the force transmission path, ensuring more direct and efficient force transmission from the drive motor 1 to the needle bar. This design reduces energy loss and response delay during force transmission, allowing the needle bar to quickly respond to motor commands, thereby improving the controllability and production efficiency of the sewing machine.

[0094] Furthermore, the transmission component further includes: a second connecting plate 8, one end of which is connected to the first sliding plate 701;

[0095] A reset plate, one end of which is connected to the end of the second connecting plate 8 away from the first sliding plate 701 , and the other end of which is away from the second connecting plate 8 is connected to the slider 4 ;

[0096] The extending directions of the second connecting plate 8 and the reset plate are both perpendicular to the extending directions of the slider 4 and the first connecting plate 703 .

[0097] Specifically, the transmission component further includes a second connecting plate 8 connected to the first sliding plate 701 , the other end of the second connecting plate 8 is connected to a reset plate, and the other end of the reset plate is connected to the slider 4 to drive the slider 4 to move.

[0098] Specifically, the second connecting plate 8, a key component of the transmission, connects the first sliding plate 701 and the reset plate, ensuring the precise transmission of the movement of the pull rod 5 to the slider 4. This design reduces energy loss and deviation during movement, making the separation and reset of the needle bar more stable and accurate, which is a significant advantage for processing high-precision sewing patterns.

[0099] The addition of the second connecting plate 8 optimizes the force transmission path from the pull rod 5 to the slider 4, making it more direct and efficient. This not only speeds up the response and reduces signal delay, but also ensures that the control instructions issued by the drive motor 1 can be quickly converted into precise movements of the needle bar, improving the overall control performance of the sewing machine.

[0100] The present application also provides a sewing machine having the above-mentioned needle bar separation and reset structure.

[0101] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0102] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0103] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0104] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0105] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A needle bar separation and reset structure, characterized in that: include: A driving component, the driving component comprising a driving motor (1), the driving motor (1) having an output shaft (2), a transmission connecting rod (3) being provided on the output shaft (2), the extension direction of the transmission connecting rod (3) being perpendicular to the extension direction of the output shaft (2), so as to convert the rotational motion of the output shaft (2) into reciprocating motion along a set direction; A transmission component, one end of which is connected to an end of the transmission connecting rod (3) away from the drive motor (1), and the other end of which is connected to a slider (4), wherein the slider (4) can be used in conjunction with a double needle bar of a double needle sewing machine to drive one of the double needle bars or the double needle bars to perform reciprocating motion simultaneously under the drive of the drive component and the transmission component.

2. The needle bar separation and reset structure according to claim 1, characterized in that: The transmission connecting rod (3) comprises: A first connecting end (301), wherein a connecting through hole (302) is provided on the first connecting end (301), and the output shaft (2) can extend into the connecting through hole (302) and be detachably connected to the connecting through hole (302); A second connecting end (303) is provided with a hinged through hole (304), and the hinged through hole (304) is connected to one end of the transmission component.

3. The needle bar separation and reset structure according to claim 2, characterized in that: The transmission connecting rod (3) further comprises: a transition section (305), the transition section (305) having a first end and a second end, the first end being connected to the first connecting end (301), and the second end being connected to the second connecting end (303); The width of the transition section (305) is gradually reduced in a direction perpendicular to its extension direction from the first end to the second end.

4. The needle bar separation and reset structure according to claim 2, characterized in that: A fastening through hole (306) is provided on an end of the first connecting end (301) away from the second connecting end (303), and the fastening through hole (306) extends in a direction from the first connecting end (301) to the second connecting end (303); A fastening component, wherein the fastening end of the fastening component can extend into the fastening through hole (306) and abut against the outer surface of the output shaft (2).

5. The needle bar separation and reset structure according to claim 4, characterized in that: The fastening through hole (306) has an internal thread, and the outer peripheral surface of the fastening component is provided with an external thread, and the internal thread is meshed with the external thread; The fastening end is provided with an arc-shaped contact surface, and the curvature of the arc-shaped contact surface is adapted to the curvature of the output shaft (2).

6. The needle bar separation and reset structure according to claim 1, characterized in that: The transmission components include: A pull rod (5), one end of which is hinged to one end of the transmission connecting rod (3); A limiting frame (6), wherein the limiting frame (6) has a limiting plate (601) fixedly connected to the sewing head of the double-needle sewing machine, and a first guide plate (602) and a second guide plate (603) relatively arranged at both ends of the limiting plate (601), and the pull rod (5) passes through the first guide plate (602) and the second guide plate (603) in sequence, and is movably arranged relative to the first guide plate (602) and the second guide plate (603).

7. The needle bar separation and reset structure according to claim 6, characterized in that: The transmission component also includes: A sliding frame (7), the sliding frame (7) is arranged in the limiting space formed by the limiting frame (6), the sliding frame (7) includes a first sliding plate (701), one end of the first sliding plate (701) is fixedly connected to the pull rod (5), and the other end of the first sliding plate (701) is used to connect with the slider (4).

8. The needle bar separation and reset structure according to claim 7, characterized in that: The sliding frame (7) further comprises: a second sliding plate (702), the second sliding plate (702) being arranged opposite to the first sliding plate (701); A first connecting plate (703), the extension direction of the first connecting plate (703) is the extension direction of the pull rod (5), and the first sliding plate (701) and the second sliding plate (702) are respectively provided at both ends of the first connecting plate (703).

9. The needle bar separation and reset structure according to claim 8, characterized in that: A protruding slider (704) is provided at one end of the second sliding plate (702) that is relatively far away from the first connecting plate (703); The limiting plate (601) is provided with a sliding groove (604), and the extending direction of the sliding groove (604) is parallel to the extending direction of the pull rod (5); Wherein, the protruding slider (704) can slide in the sliding groove (604).

10. The needle bar separation and reset structure according to claim 8, characterized in that: The transmission component also includes: a second connecting plate (8), one end of the second connecting plate (8) being connected to the first sliding plate (701); a reset plate, one end of the reset plate being connected to an end of the second connecting plate (8) away from the first sliding plate (701), and one end of the reset plate being away from the second connecting plate (8) being connected to the slider (4); The extension directions of the second connecting plate (8) and the reset plate are both perpendicular to the extension direction of the slider (4) and the extension direction of the first connecting plate (703).

11. A sewing machine, characterized in that: The sewing machine has the needle bar separation and reset structure according to any one of claims 1 to 10.

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