Sewing machine, sewing method and processor

Abstract

The application relates to a sewing machine, a sewing method and a processor, wherein the sewing machine comprises a sewing machine main assembly, the sewing machine main assembly comprises a machine base structure and a machine head structure, the machine head structure is arranged on the machine base structure, a thread hooking and feeding assembly is arranged on the sewing machine main assembly, and a thread connector assembly is arranged on the sewing machine main assembly. The technical scheme of the application effectively solves the problem that the rotating shuttle of the sewing machine in the prior art is not beautiful when the sewing thread is replaced during the sewing of clothes.

Description

Technical Field

[0001] This application relates to the technical field of sewing machines, and more specifically, to a sewing machine, sewing method, and processor. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on fabric, so that one or more layers of fabric are interwoven or sewn together.

[0003] A rotary hook sewing machine consists of a sewing head, rotary hook, needle bar, oscillating shuttle, thread take-up lever, and feeding mechanism. The sewing head includes the core components of the sewing machine, such as the rotary hook, needle bar, oscillating shuttle, and thread take-up lever. The rotary hook is a key component of the sewing machine. During operation, the rotary hook carries the bobbin thread, and the needle bar carries the top thread. The up-and-down movement of the needle bar passes through the fabric, allowing the top and bobbin threads to engage.

[0004] In some existing technologies, the bobbin thread is attached to the rotary hook. Due to the limitations of the rotary hook structure, not too much bobbin thread can be installed, and the operator cannot observe the usage of the bobbin thread. A new bobbin thread can only be installed after the old bobbin thread has been used up. This results in seam joints between the new and old bobbin thread, which leads to unsightly sewn fabric. Summary of the Invention

[0005] This application provides a sewing machine, sewing method, and processor to solve the problem in the prior art where changing the sewing thread when using the rotary hook of a sewing machine during garment sewing results in unsightly sewn items.

[0006] A sewing machine according to this application includes: a sewing machine main body assembly, the sewing machine main body assembly including a base structure and a head structure, the head structure being disposed on the base structure; a hook and feed assembly, the hook and feed assembly being disposed on the sewing machine main body assembly; and a connector assembly, the connector assembly being disposed on the sewing machine main body assembly.

[0007] Furthermore, the hook-and-feed assembly includes a wire feeder, which includes: a wire feeder base; and a wire feed structure connected to the wire feeder base. The wire feed structure has a first wire feed portion and a second wire feed portion, wherein the end of the first wire feed portion away from the wire feeder base is at a predetermined distance from the end of the second wire feed portion away from the wire feeder base.

[0008] Furthermore, the first end of the first wire feeding part is connected to the wire feeding base, the first end of the second wire feeding part is connected to the first wire feeding part, and the second wire feeding part is located on the side of the first wire feeding part away from the wire feeding base.

[0009] Furthermore, in the projection along the axial direction of the parallel wire feeder, both the first end of the second wire feeder and the second end of the second wire feeder are located between the first end of the first wire feeder and the second end of the first wire feeder.

[0010] Furthermore, the end of the first wire feeding portion away from the wire feeding base has a pointed tip, and the cross-sectional area of ​​the first wire feeding portion gradually increases from the end away from the wire feeding base to the end near the wire feeding base.

[0011] Furthermore, the side of the first wire feeding section facing the wire feeding base is an arc or an arc surface.

[0012] Furthermore, the end of the second wire feeding section away from the first wire feeding section has a pointed tip, and the cross-sectional area of ​​the second wire feeding section away from the first wire feeding section gradually increases from the end of the second wire feeding section away from the first wire feeding section to the end of the second wire feeding section near the first wire feeding section.

[0013] Furthermore, the side of the second wire feeding section facing the first wire feeding section is an arc or an arc surface, and / or the side of the first wire feeding section facing the second wire feeding section is an arc or an arc surface.

[0014] Furthermore, the wire feeder includes a mounting part and a connecting part, the mounting part is connected to the connecting part, the mounting part is connected to the drive shaft, and the wire feeding structure is disposed on the connecting part.

[0015] Furthermore, the hook and feed assembly also includes a hooker, which works in conjunction with the feeder. The hooker includes: a hook base; a hook section, with the first end of the hook section connected to the hook base.

[0016] Furthermore, in the direction from the second end of the hook section to the first end of the hook section, the cross-sectional area of ​​the hook section gradually increases at least partially.

[0017] Furthermore, the side of the hook section facing the hook seat is an arc surface or an arc, and the slope of the side of the hook section facing the hook seat gradually increases in the direction from the second end of the hook section to the first end of the hook section.

[0018] Furthermore, the hook-and-feed assembly also includes a drive shaft, with both the wire feeder and the hook mounted on the drive shaft; when there is only one drive shaft, the wire feeder is directly connected to the drive shaft, and the hook is connected to the drive shaft via a reverse gear, or the hook is directly connected to the drive shaft, and the wire feeder is connected to the drive shaft via a reverse gear; or

[0019] The drive shaft includes a first hook wire feeding drive shaft and a second hook wire feeding drive shaft. The wire feeder is connected to the first hook wire feeding drive shaft, and the hook is connected to the second hook wire feeding drive shaft.

[0020] Furthermore, the connector assembly includes a connector structure and a thread pulling structure, the thread pulling structure cooperating with both the first and second threads to pull the first and second threads to the connector structure.

[0021] Furthermore, the connector structure includes a connector driver, a connector transmission unit, and a connector. The connector driver is mounted on the main assembly of the sewing machine, the connector transmission unit is connected to the connector driver, and the connector is connected to the connector transmission unit.

[0022] Furthermore, the sewing thread traction structure includes a first traction drive unit, a second traction drive unit, a first traction unit, and a second traction unit. Both the first traction drive unit and the second traction drive unit are mounted on the main body assembly of the sewing machine. The first traction unit is connected to the first traction drive unit, and the second traction unit is connected to the second traction drive unit.

[0023] Furthermore, the connector assembly also includes a traction drive structure, which is mounted on the main sewing machine assembly. The output end of the sewing thread traction structure and the traction drive structure are connected to the sewing thread traction structure to drive the sewing thread traction structure to have a traction position close to the connector structure and a waiting position far away from the connector structure.

[0024] Furthermore, the connector assembly also includes a thread-cutting structure, which is disposed on the main body assembly of the sewing machine and has a cutting position that cooperates with the first sewing thread.

[0025] According to another aspect of this application, a sewing method using a sewing machine is also provided, wherein the sewing machine is the aforementioned sewing machine, and the sewing method includes the following steps:

[0026] S10 engages the working segment of the first sewing thread with the hook-and-feed assembly and engages the second sewing thread with the main body assembly of the sewing machine.

[0027] The S20 sewing machine main body assembly works in conjunction with the hook and feed assembly to sew the workpiece with the first and second sewing threads.

[0028] The S30 connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread.

[0029] S40 The sewing thread portion of the main body of the first sewing thread is pulled out, and the first sewing thread is cut to a predetermined length.

[0030] The S50 sewing machine's main body assembly and hook-and-feed assembly work together to allow the first and second sewing threads to continue sewing the workpiece.

[0031] According to another aspect of this application, a processor is also provided, which runs a program for representing the sewing method of the sewing machine described above.

[0032] By applying the technical solution of this application, the first and second sewing threads are sewn together using the cooperation of the sewing machine main body assembly and the thread feeding assembly. The first sewing thread is used to a predetermined length. The connector assembly connects the working segment of the first sewing thread and the main body of the first sewing thread into a whole, and then the first sewing thread is cut to the initial working length, thus ensuring that the first sewing thread remains continuous. The technical solution of this application effectively solves the problem in the prior art where changing the sewing thread during sewing in a sewing machine results in unsightly sewn items. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the overall structure of the sewing machine according to an embodiment of this application is shown;

[0036] Figure 2 It shows Figure 1 A partial structural diagram of a sewing machine;

[0037] Figure 3 It shows Figure 1 A schematic diagram of the hook-and-feed assembly of a sewing machine;

[0038] Figure 4 It shows Figure 3 A schematic diagram of the wire feeder of the hook-and-feed assembly;

[0039] Figure 5 It shows Figure 4 A partially enlarged schematic diagram of the wire feeder;

[0040] Figure 6 It shows Figure 1 A top view of the wire feeder;

[0041] Figure 7 A schematic diagram of the hook device according to an embodiment of this application is shown;

[0042] Figure 8 A flowchart illustrating the sewing method of this application is shown.

[0043] The above figures include the following reference numerals:

[0044] 100. Thread feeding assembly; 10. Thread feeder; 11. Thread feeder base; 111. Mounting part; 112. Connecting part; 12. Thread feeding structure; 121. First thread feeding part; 122. Second thread feeding part; 20. Thread hooker; 21. Thread hook base; 22. Thread hooking part; 30. Drive shaft; 200. Sewing machine main body assembly; 210. Machine base structure; 220. Machine head structure; 300. Connector assembly; 310. Connector structure; 311. Connector driver; 312. Connector transmission part; 313. Connector; 320. Sewing thread traction structure; 330. Traction drive structure. Detailed Implementation

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0047] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0048] like Figures 1 to 7 As shown, the sewing machine of this embodiment includes: a thread feed assembly 100, a sewing machine main body assembly 200, and a connector assembly 300. The sewing machine main body assembly 200 includes a base structure 210 and a head structure 220, with the head structure 220 mounted on the base structure 210. The thread feed assembly 100 is mounted on the sewing machine main body assembly 200. The connector assembly 300 is mounted on the sewing machine main body assembly 200.

[0049] By employing the technical solution of this embodiment, the first sewing thread and the second sewing thread are sewn together through the cooperation of the sewing machine main body assembly 200 and the thread feeding assembly 100. The first sewing thread is used to a predetermined length. The connector assembly 300 connects the working segment of the first sewing thread and the main body of the first sewing thread into a whole, and then the first sewing thread is cut to the initial working length, so that the first sewing thread is always in a continuous state. The technical solution of this embodiment effectively solves the problem in the prior art where changing the sewing thread when sewing clothes with a rotary hook of a sewing machine results in unsightly sewn items.

[0050] It should be noted that the hook and feed assembly 100 in this embodiment includes a thread feeder 10 and a hook 20. Through the cooperation of the thread feeder 10 and the hook 20, the first sewing thread is set in other positions, replacing the traditional sewing machine structure in which the bottom thread spool is set on the rotary hook. Such a structure can effectively control the discontinuity of the thread ends in the sewn items.

[0051] like Figures 4 to 7 As shown, the wire feeder 10 of this embodiment includes a wire feed base 11 and a wire feed structure 12. The wire feed structure 12 is connected to the wire feed base 11 and has a first wire feed portion 121 and a second wire feed portion 122. The end of the first wire feed portion 121 away from the wire feed base 11 is at a predetermined distance from the end of the second wire feed portion 122 away from the wire feed base 11.

[0052] Applying the technical solution of this embodiment, the first sewing thread cooperates with the first thread feeder 121, and the second sewing thread cooperates with the second thread feeder 122. The end of the first thread feeder 121 furthest from the thread feeder seat and the end of the second thread feeder 122 furthest from the thread feeder seat 11 are at a predetermined distance. This ensures that when the first thread feeder 121 cooperates with the first sewing thread, the second thread feeder 122 will not interfere; and when the second thread feeder 122 cooperates with the second sewing thread, the first thread feeder 121 will not interfere. This structure eliminates the need to install sewing thread on the thread feeder 10, ensuring that the sewing thread remains within a controllable range and preventing the sewn items from becoming defective due to uncontrollable sewing thread during the sewing process. The technical solution of this embodiment effectively solves the problem in the prior art where changing the sewing thread during sewing in a sewing machine leads to defective sewn items.

[0053] It should be noted that the wire feeder 10 in this embodiment needs to be used in conjunction with the hook 20. The specific structure and method of use of the hook 20 will be described in detail below.

[0054] like Figure 4 and Figure 5As shown, in this embodiment, the first end of the first thread feeding part 121 is connected to the thread feeding base 11, and the first end of the second thread feeding part 122 is connected to the first thread feeding part 121. The second thread feeding part 122 is located on the side of the first thread feeding part 121 away from the thread feeding base 11. This structure ensures that the distance between the first thread feeding part 121 and the second thread feeding part 122 is reasonably set, and the groove formed by the first thread feeding part 121 and the second thread feeding part 122 can provide good constraint for the sewing thread (the sewing thread refers to the first sewing thread and the second sewing thread), specifically the second sewing thread.

[0055] It should be noted that the first wire feeding section 121 and the second wire feeding section 122 have the same rotation direction, that is, the first wire feeding section 121 and the second wire feeding section 122 extend in the same direction.

[0056] like Figure 4 and Figure 5 As shown, in the technical solution of this embodiment, in the projection along the axial direction of the parallel thread feeder, the first end of the second thread feeder 122 and the second end of the second thread feeder 122 are both located between the first end of the first thread feeder 121 and the second end of the first thread feeder 121. This structure allows the second thread of the second thread feeder 122 to perform the next cycle of sewing work under the action of the hook threader 20 after the first sewing thread avoids it. It should be noted that in this application, the end of the first thread feeder 121 away from the thread feeder base 11 corresponds to the second end of the first thread feeder 121, and the end of the second thread feeder 122 away from the thread feeder base 11 corresponds to the second end of the second thread feeder 122.

[0057] like Figures 4 to 7 As shown, in this embodiment, the first thread feeder 121 has a pointed end away from the thread feeder base 11, and the cross-sectional area of ​​the first thread feeder 121 gradually increases from the end away from the thread feeder base 11 to the end near the thread feeder base 11. The second end of the first thread feeder 121 is also pointed, which facilitates its mating with the first sewing thread. The cross-sectional area of ​​the first thread feeder 121 gradually increases from the end away from the thread feeder base 11 to the end near the thread feeder base 11, which allows the first sewing thread sufficient space to pass through the second thread feeder 122 under the action of the first thread feeder 121. The second thread feeder 122 can then feed the second sewing thread to a suitable position to mate with the first sewing thread.

[0058] like Figure 5As shown, in this embodiment, the side of the first thread feeder 121 facing the thread feeder 11 is an arc or an arc surface. The side of the first thread feeder 121 facing the thread feeder 11 applies force to the first sewing thread. The arc or arc surface of this side ensures a gradual transition in the force and trajectory of the first thread feeder 121 on the first sewing thread, reducing the likelihood of abrupt changes in force and trajectory, resulting in a smoother first sewing thread. It should be noted that the side of the first thread feeder 121 facing the thread feeder 11 is a gradually changing arc or arc surface. From the second end to the first end of the first thread feeder 121, the slope of the side of the first thread feeder 121 facing the thread feeder 11 gradually increases (the slope may have some slight abrupt changes).

[0059] like Figure 5 As shown, in this embodiment, the second thread feeder 122 has a pointed end away from the first thread feeder 121, and the cross-sectional area of ​​the second thread feeder 122 gradually increases from the end away from the first thread feeder 121 to the end near the first thread feeder 121. The pointed end of the second thread feeder 122 facilitates its engagement with the second sewing thread, and as the second thread feeder 122 gradually increases in size, it also facilitates its engagement with the thread hook 20. In the direction from the second end to the first end of the second thread feeder 122, the slope of the second thread feeder 122 towards the first thread feeder 121 increases (the slope may have some slight abrupt changes).

[0060] It should be noted that the wire feeding structure 12 is plate-shaped. The first end of the plate-shaped wire feeding structure 12 is connected to the wire feeding base 11. The second end of the plate-shaped wire feeding structure 12 forms two tips, namely the tip of the first wire feeding part 121 and the tip of the second wire feeding part 122. There is a groove between the tip of the first wire feeding part 121 and the tip of the second wire feeding part 122.

[0061] like Figure 5 As shown, in this embodiment, the side of the second thread feeding section 122 facing the first thread feeding section 121 is an arc or an arc surface, and the side of the first thread feeding section 121 facing the second thread feeding section 122 is also an arc or an arc surface. This makes the operation of the second sewing thread smoother. In another embodiment, the side of the second thread feeding section 122 facing the first thread feeding section 121 is an arc or an arc surface.

[0062] like Figures 4 to 7As shown, in this embodiment, the wire feeder 11 includes a mounting portion 111 and a connecting portion 112. The mounting portion 111 is connected to the connecting portion 112 and to the drive shaft 30. The wire feed structure 12 is disposed on the connecting portion 112. The mounting portion 111 is connected to the drive shaft 30, making the arrangement of the connecting portion 112 more flexible and less likely to interfere with the arrangement of the wire feed structure 12. The connecting portion 112 is connected to the wire feed structure 12. It should be noted that the mounting portion 111, the connecting portion 112, and the wire feed structure 12 are an integral structure. In this embodiment, the mounting portion 111 is a cylindrical structure, and the drive shaft 30 extends into the central mounting hole of the mounting portion 111. The drive shaft 30 and the mounting portion 111 are connected by a set screw; alternatively, an interference fit connection can be used. The connecting portion 112 is a circular plate structure, with the mounting portion 111 and the wire feed structure 12 located on opposite sides of the connecting portion 112.

[0063] like Figure 7 As shown, this application also provides a thread hook. An embodiment of the thread hook can be: the thread hook cooperates with a thread feeder, the thread feeder being the aforementioned thread feeder, and the thread hook includes: a thread hook base 21 and a thread hook portion 22. The first end of the thread hook portion 22 is connected to the thread hook base 21. The thread hook portion 22 can hook the second sewing thread of the second thread feeder 122 on the thread feeder 10, causing the second sewing thread to detach from the second thread feeder 122, and preparing for the second thread feeder 122 to cooperate with the second sewing thread.

[0064] like Figure 7 As shown, in the technical solution of this embodiment, the cross-sectional area of ​​the hook-and-eye portion 22 gradually increases at least partially in the direction from the second end to the first end of the hook-and-eye portion 22. The second end of the hook-and-eye portion 22 is a pointed tip, which facilitates hooking the thread, that is, makes it more accurate when hooking the second sewing thread.

[0065] like Figure 7 As shown, in this embodiment, the side of the hook portion 22 facing the hook seat 21 is an arc surface or curve. From the second end to the first end of the hook portion 22, the slope of the side of the hook portion 22 facing the hook seat 21 gradually increases. The arc surface or curve of the side of the hook portion 22 facing the hook seat 21 makes the hooker 20 more smoothly engaged with the second sewing thread. The gradually increasing slope of the side of the hook portion 22 facing the hook seat 21 improves the movement of the second sewing thread. It should be noted that the gradually increasing slope of the side of the hook portion 22 facing the hook seat 21 constitutes the main body of the hook portion 22. To improve the hooking effect, the end of the second end of the hook portion 22 may have some abrupt changes.

[0066] like Figure 3As shown, this application also provides a hook-and-feed device (hook-and-feed assembly). The hook-and-feed device includes a thread feeder 10 and a hook 20. The thread feeder 10 is the thread feeder 10 described above. The hook 20 is the hook 20 described above. In the embodiments of this application, the thread is fed through the thread feeder 10, and the hook 20 cooperates with the thread feeder 10 to hook or feed the sewing thread on the thread feeder 10, so that the first sewing thread and the second sewing thread cooperate to sew. The hook-and-feed device replaces the existing rotary hook function, and there is no need to set a sewing thread spool on the hook-and-feed device, effectively avoiding the defective sewing products caused by the use up of sewing thread.

[0067] like Figure 3 As shown, in one embodiment of the hook-and-feed device, the drive shaft 30 includes a first drive shaft and a second drive shaft. The wire feeder 10 is connected to the first drive shaft, and the hook-and-feed device 20 is connected to the second drive shaft. In this embodiment, the wire feeder 10 and the hook-and-feed device 20 are arranged face-to-face (the wire feeding structure 12 and the hook-and-feed part 22 are adjacent). It should be noted that when the wire feeder 10 and the hook-and-feed device 20 have different drive shafts 30, and the wire feeder 10 and the hook-and-feed device 20 are arranged face-to-face, the rotation direction of the wire feeding structure 12 and the hook-and-feed part 22 can be the same or different, as long as the rotation direction of the first drive motor connected to the first drive shaft and the second drive motor connected to the second drive shaft is controlled. The first drive motor and the second drive motor can be reversible motors, or they can be motors that rotate in the same direction.

[0068] like Figure 2 and Figure 3 As shown, in this embodiment, the connector assembly 300 includes a connector structure 310 and a thread pulling structure 320. The thread pulling structure 320 cooperates with both the first and second sewing threads to pull them to the connector structure 310. The connector structure 310 connects the working first sewing thread and the first sewing thread on the spool side together. The thread pulling structure 320 is used to pull the working first sewing thread and the first sewing thread on the spool to the connector structure 310, which greatly improves the stability of the connection of the first sewing thread. It should be noted that the sewing machine in this embodiment also includes a tensioner, a thread guide, and a thread clamp. When the thread pulling structure 320 needs to pull the first sewing threads at both ends, the thread clamp needs to clamp and fix the first sewing thread on the spool side. It is also necessary to clamp and fix the working first sewing thread when necessary.

[0069] like Figure 2As shown, in this embodiment, the connector structure 310 includes a connector driver 311, a connector transmission part 312, and a connector 313. The connector driver 311 is mounted on the sewing machine main body assembly 200. The connector transmission part 312 is connected to the connector driver 311, and the connector 313 is connected to the connector transmission part 312. The connector driver 311 drives the connector 313 to move via the connector transmission part 312. When the connector 313 needs to connect wires, it moves to a suitable position. When it does not need to connect wires, it can move to a position where it does not interfere with other components. It should be noted that the connector driver 311 can be directly mounted on the sewing machine main body assembly 200 or connected to it via a connecting frame. In this embodiment, the connector driver 311 can be a drive motor. The connector transmission part 312 includes a screw and a translation block. The connector 313 is connected to the translation block, and the translation block and the machine base structure 210 have a mutually cooperating slide rail structure. In this embodiment, the screw is arranged vertically. As other drive structures, the wired driver 311 can be an electric actuator, a pneumatic cylinder, or a hydraulic cylinder.

[0070] like Figure 2 As shown, in this embodiment, the sewing thread traction structure 320 includes a first traction drive unit, a second traction drive unit, and a first traction unit and a second traction unit. Both the first and second traction drive units are mounted on the sewing machine main body assembly 200. The first traction unit is connected to the first traction drive unit, and the second traction unit is connected to the second traction drive unit. The two traction units significantly improve work efficiency. It should be noted that the first and second traction units can be electric push rods or traction hooks, with the grooves of the two traction hooks facing each other. The axes of the first and second traction drive units are horizontally aligned and parallel to each other. The aforementioned traction drive units can also be drive units of other structures, such as a motor screw structure or a cylinder structure.

[0071] like Figure 2 As shown, in this embodiment, the connector assembly 300 further includes a traction drive structure 330, which is mounted on the sewing machine main body assembly 200. The output end of the sewing thread traction structure 320 is connected to the output end of the traction drive structure 330, thereby driving the sewing thread traction structure 320 to have a traction position close to the connector structure 310 and a position to be traction away from the connector structure 310. The arrangement of the traction drive structure 330 further avoids interference with other components. The axis of the traction drive structure 330 is horizontally arranged and perpendicular to the axis of the first traction drive unit.

[0072] like Figure 2As shown, in the technical solution of this embodiment, the connector assembly 300 further includes a thread-cutting structure, which is disposed on the sewing machine main body assembly 200 and has a cutting position that cooperates with the first sewing thread. Each time the first sewing thread is connected through the connector 313, the thread-cutting structure cuts the first sewing thread to a predetermined length. It should be noted that the sewing machine of this application also includes a thread tensioner, a thread guide, and a thread clamp. The thread tensioner, thread guide, and thread clamp are set according to needs and actual conditions. Multiple thread clamps can be set, for example, when pulling the two ends of the first sewing thread, the first sewing thread is clamped and fixed by the thread clamp.

[0073] It should be noted that this embodiment also includes a second connector, which is used to connect to the first sewing thread of the next spindle when the first sewing thread of the entire spindle is used up. In this embodiment, the first sewing thread is the bottom thread, and the second sewing thread is the top thread.

[0074] A second embodiment of the hook-and-feed device (not shown in the figure) can be as follows: The hook-and-feed device further includes a drive shaft 30, and both the wire feeder 10 and the hook 20 are mounted on the drive shaft 30. When there is only one drive shaft 30, the wire feeder 10 is directly connected to the drive shaft 30, and the hook 20 is connected to the drive shaft 30 via a reverse gear; or the hook 20 is directly connected to the drive shaft 30, and the wire feeder 10 is connected to the drive shaft 30 via a reverse gear. In this embodiment, the wire feeder 10 and the hook 20 can be coupled using the same drive shaft 30. When they are on the same drive shaft 30, the rotation direction of the wire feeding structure 12 of the wire feeder 10 is opposite to the rotation direction of the hook portion 22 of the hook 20.

[0075] It should be noted that the sewing machine in this application includes sewing machines, stitching machines, embroidery machines, and quilting machines, etc. A single sewing machine may include a needle and a set of hook-and-feed assemblies corresponding to the needle, or the sewing machine may include multiple needles and multiple sets of hook-and-feed assemblies that correspond one-to-one with the multiple needles.

[0076] like Figure 8 As shown, this application also provides a sewing method using a sewing machine, wherein the sewing machine is the aforementioned sewing machine. The sewing method includes the following steps: S10, engaging the working segment of a first sewing thread with the hook-and-feed assembly 100, and engaging the second sewing thread with the sewing machine main body assembly 200. S20, the sewing machine main body assembly 200 and the hook-and-feed assembly 100 work together to sew the workpiece. S30, the connector assembly 300 connects the working segment of the first sewing thread to the main body of the first sewing thread. S40, the sewing thread portion of the main body of the first sewing thread is pulled out, and the first sewing thread is cut to a predetermined length. S50, the sewing machine main body assembly 200 and the hook-and-feed assembly 100 work together to continue sewing the workpiece with the first and second sewing threads. The above structure ensures the continuity of the sewing thread, resulting in a more aesthetically pleasing sewn workpiece.

[0077] In the sewing method of this application, before the working segment of the first sewing thread is connected to the main body of the first sewing thread in step S30, the working segment and the main body of the first sewing thread are respectively pulled to the connector 313 by the sewing thread pulling structure 320. The above structure makes the connection of the two segments of the first sewing thread more reliable. The above actions of the sewing machine are automated by the automatic control system, which saves time and effort and is highly efficient.

[0078] In the sewing method of this application, the needle of the machine head structure 220 retracts to a predetermined distance, and the thread hook catches the first sewing thread on the second thread feed section 122. The above-described sewing method ensures that the thread hook will not accidentally catch the second sewing thread when catching the first sewing thread.

[0079] This application also provides a processor that runs a program for the sewing method of the above-described sewing machine. As one embodiment, the above-described sewing machine includes this processor.

[0080] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0081] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0082] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sewing machine, characterized in that, include: A sewing machine main body assembly (200) includes a base structure (210) and a head structure (220), wherein the head structure (220) is disposed on the base structure (210); A hook-and-feed assembly (100) is disposed on the sewing machine body assembly (200); A connector assembly (300) is disposed on the sewing machine body assembly (200); The hook-and-feed assembly (100) includes a wire feeder (10), the wire feeder (10) comprising: Wire feeder (11); The thread feeding structure (12) is connected to the thread feeding base (11). The thread feeding structure (12) has a first thread feeding part (121) and a second thread feeding part (122). The end of the first thread feeding part (121) away from the thread feeding base (11) and the end of the second thread feeding part (122) away from the thread feeding base (11) are at a predetermined distance. The groove formed by the first thread feeding part (121) and the second thread feeding part (122) constrains the sewing thread. The wire feeding assembly (100) further includes a wire hook (20), which cooperates with the wire feeder (10), and the wire hook (20) includes: Hook and thread holder (21); The hook part (22) has its first end connected to the hook seat (21); The hooking part (22) hooks the second sewing thread of the second thread feeding part (122) on the thread feeder (10); The connector assembly (300) includes a connector structure (310) and a thread pulling structure (320), the thread pulling structure (320) cooperating with both a first thread and a second thread to pull the first thread and the second thread to the connector structure (310). The connector structure (310) includes a connector driver (311), a connector transmission part (312), and a connector (313). The connector driver (311) is disposed on the sewing machine main body assembly (200). The connector transmission part (312) is connected to the connector driver (311), and the connector (313) is connected to the connector transmission part (312).

2. The sewing machine according to claim 1, characterized in that, The first end of the first wire feeding part (121) is connected to the wire feeding base (11), and the first end of the second wire feeding part (122) is connected to the first wire feeding part (121). The second wire feeding part (122) is located on the side of the first wire feeding part (121) away from the wire feeding base (11).

3. The sewing machine according to claim 2, characterized in that, Projected in a direction parallel to the axis of the wire feeder, the first end of the second wire feeder (122) and the second end of the second wire feeder (122) are both located between the first end of the first wire feeder (121) and the second end of the first wire feeder (121).

4. The sewing machine according to claim 1, characterized in that, The first wire feeding part (121) has a pointed end away from the wire feeding base (11), and the cross-sectional area of ​​the first wire feeding part (121) away from the wire feeding base (11) gradually increases at least partially to the end near the wire feeding base (11).

5. The sewing machine according to claim 4, characterized in that, The side of the first wire feeding part (121) facing the wire feeding base (11) is an arc or an arc surface.

6. The sewing machine according to claim 1, characterized in that, The second wire feeding part (122) has a pointed end away from the first wire feeding part (121), and the cross-sectional area of ​​the second wire feeding part (122) away from the first wire feeding part (121) gradually increases at least partially to the end near the first wire feeding part (121).

7. The sewing machine according to claim 6, characterized in that, The side of the second wire feeding part (122) facing the first wire feeding part (121) is an arc or an arc surface, and / or the side of the first wire feeding part (121) facing the second wire feeding part (122) is an arc or an arc surface.

8. The sewing machine according to claim 7, characterized in that, The wire feeder (11) includes a mounting part (111) and a connecting part (112). The mounting part (111) is connected to the connecting part (112), and the mounting part (111) is connected to the drive shaft (30). The wire feeding structure (12) is disposed on the connecting part (112).

9. The sewing machine according to claim 1, characterized in that, In the direction from the second end of the hook section (22) to the first end of the hook section (22), the cross-sectional area of ​​the hook section (22) gradually increases at least partially.

10. The sewing machine according to claim 1, characterized in that, The side of the hook section (22) facing the hook seat (21) is an arc surface or an arc. In the direction from the second end of the hook section (22) to the first end of the hook section (22), the slope of the side of the hook section (22) facing the hook seat (21) gradually increases.

11. The sewing machine according to claim 1, characterized in that, The hook and feed assembly (100) further includes a drive shaft (30), and the feeder (10) and the hook (20) are both mounted on the drive shaft (30); When there is only one drive shaft (30), the wire feeder (10) is directly connected to the drive shaft (30), and the hook (20) is connected to the drive shaft (30) through a reverse gear; or the hook (20) is directly connected to the drive shaft (30), and the wire feeder (10) is connected to the drive shaft (30) through a reverse gear; or The drive shaft (30) includes a first hook-feed drive shaft and a second hook-feed drive shaft. The wire feeder (10) is connected to the first hook-feed drive shaft, and the hook (20) is connected to the second hook-feed drive shaft.

12. The sewing machine according to claim 1, characterized in that, The sewing thread traction structure (320) includes a first traction drive unit, a second traction drive unit, a first traction unit, and a second traction unit. The first traction drive unit and the second traction drive unit are both disposed on the sewing machine main body assembly (200). The first traction unit is connected to the first traction drive unit, and the second traction unit is connected to the second traction drive unit.

13. The sewing machine according to claim 1, characterized in that, The connector assembly (300) further includes a traction drive structure (330), which is disposed on the sewing machine main body assembly (200). The sewing thread traction structure (320) and the output end of the traction drive structure (330) are connected to the sewing thread traction structure (320) to drive the sewing thread traction structure (320) to have a traction position close to the connector structure (310) and a position to be traction away from the connector structure (310).

14. The sewing machine according to claim 1, characterized in that, The connector assembly (300) further includes a cutting structure disposed on the sewing machine body assembly (200) and having a cutting position that cooperates with the first sewing thread.

15. A sewing method using a sewing machine, characterized in that, The sewing machine is any one of claims 1 to 14, and the sewing method includes the following steps: S10 engages the working segment of the first sewing thread with the hook-and-feed assembly (100) and engages the second sewing thread with the sewing machine body assembly (200); The S20 sewing machine main body assembly (200) works in conjunction with the hook and feed assembly (100) to sew the workpiece with the first and second sewing threads; The S30 connector assembly (300) connects the working segment of the first sewing thread to the main body of the first sewing thread; S40 The sewing thread portion of the main body of the first sewing thread is pulled out, and the first sewing thread is cut to a predetermined length. The S50 sewing machine main body assembly (200) and the hook-and-feed assembly (100) work together to allow the first and second sewing threads to continue sewing the workpiece.

16. A processor, characterized in that, The processor runs a program for representing the sewing method of the sewing machine of claim 15.

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