Sewing method, processor, and sewing machine

Abstract

The application relates to a sewing method of a sewing machine, a processor and the sewing machine, wherein the sewing method of the sewing machine comprises the following steps: S10, the sewing machine sews a to-be-sewn article; S20, a connector assembly connects a working thread segment of a first sewing thread and a main body part of the first sewing thread, and cuts the connected first sewing thread to a first predetermined length, so as to form a new working thread segment of the first sewing thread; and S30, steps S10 and S20 are repeated. 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 sewing of clothes.

Description

Technical Field

[0001] This application relates to the technical field of sewing machines, and more specifically, to a sewing method, processor, and sewing machine. 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 method, processor, and sewing machine 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 method for a sewing machine according to this application includes: S10 sewing an article to be sewn by the sewing machine; S20 connecting a connector assembly connecting a working segment of a first sewing thread and the main body of the first sewing thread, and cutting the connected first sewing thread to a first predetermined length to form a new working segment of the first sewing thread; S30 repeating steps S10 and S20.

[0007] Furthermore, in step S20, the working segment of the first sewing thread has a remaining second predetermined length, and the connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread.

[0008] Further, step S20 includes: S21 the sewing thread pulling structure pulls the end of the working segment of the first sewing thread to the connector assembly, and the sewing thread pulling structure pulls the main body of the first sewing thread to the connector assembly; S22 the connector assembly connects the working segment of the first sewing thread and the main body of the first sewing thread into a whole; S23 the thread cutting structure cuts the main body of the first sewing thread to form a new working segment of the first sewing thread.

[0009] Furthermore, in step S21, the sewing thread traction structure includes a first sewing thread traction structure and a second sewing thread traction structure. The first sewing thread traction structure tractions the working segment of the first sewing thread, and the second sewing thread traction structure tractions the main body of the first sewing thread.

[0010] Furthermore, prior to step S21, the method further includes: a connector drive structure driving the connector to move to the wiring position.

[0011] Furthermore, step S20 also includes collecting the wire ends generated by the connector assembly.

[0012] Furthermore, before step S10, the working segment of the first sewing thread needs to be installed in the second thread feeding part of the thread feeder, and the main body of the first sewing thread is set in the first preset position.

[0013] Furthermore, the fixed end of the working segment of the first sewing thread is clamped and fixed by the first thread clamp, and the connecting end of the main body of the first sewing thread is set in a second preset position by the thread tensioner, the thread guide and the second thread clamp.

[0014] Further, step S10 includes: S11 sewing is performed by the rotation of the thread feeder, the rotation of the thread hook, and the translational movement of the needle of the sewing machine body assembly.

[0015] Further, step S11 includes: S111 the sewing machine main body assembly drives the second sewing thread, and the first thread feeding part of the thread feeder hooks the second sewing thread; S112 the hooking part of the hooker hooks the working segment of the first sewing thread that cooperates with the second thread feeding part of the thread feeder, and the sewing machine main body assembly continues to drive the second sewing thread, so that the working segment of the first sewing thread and the second sewing thread cooperate to sew the item to be sewn.

[0016] Furthermore, when the needle of the sewing machine's main body moves downward to its lowest point and is lifted upward, the first thread feeder hooks the second thread. The needle continues to move upward, and when it reaches a distance of 1.5mm to 2mm from the lowest point of the needle's movement, the hooking part hooks the working segment of the first thread that cooperates with the second thread feeder, so that the first thread is located within the loop of the first thread. The thread feeder and hooking part continue to rotate, and the working segment of the first thread disengages from the first thread feeder. The needle continues to move upward and passes through the item to be sewn. Due to the restriction of the first thread, the second thread is located on both sides of the item to be sewn. The item to be sewn moves forward, and the needle moves downward through the item to be sewn and continues to move downward. When the needle moves to the lowest point and is lifted upward, the first thread feeder rotates to a position close to the needle and hooks the first thread. This process is repeated until the first thread has a remaining second predetermined length.

[0017] 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.

[0018] According to another aspect of this application, a sewing machine is also provided, comprising: a sewing machine body and a controller electrically connected to the sewing machine body, the controller including at least one processor and at least one memory, the memory storing a computer program, and when the computer program is executed by the processor, implementing the above-described sewing method.

[0019] By applying the technical solution of this application, when a sewing machine needs to connect threads while sewing an item, the connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread, thus preventing the appearance of thread ends during sewing. After the working segment of the first sewing thread is connected to the main body of the first sewing thread, the connected first sewing thread is cut to a first predetermined length to form a new working segment of the first sewing thread, which facilitates the sewing operation of the sewing machine. The technical solution of this application effectively solves the problem in the prior art where changing the sewing thread during sewing on a sewing machine's rotary hook results in unsightly sewn items. Attached Figure Description

[0020] 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.

[0021] 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.

[0022] Figure 1 A schematic flowchart of the sewing method of the sewing machine according to an embodiment of this application is shown;

[0023] Figure 2 It shows Figure 1 A flowchart illustrating steps S20 of the sewing method;

[0024] Figure 3 A schematic diagram of the overall structure of the sewing machine according to an embodiment of this application is shown;

[0025] Figure 4 It shows Figure 3 A partial structural diagram of a sewing machine;

[0026] Figure 5 It shows Figure 3 A schematic diagram of the hook-and-feed assembly of a sewing machine;

[0027] Figure 6 It shows Figure 5 A schematic diagram of the wire feeder of the hook-and-feed assembly;

[0028] Figure 7 It shows Figure 6 A partially enlarged schematic diagram of the wire feeder;

[0029] Figure 8 It shows Figure 3 A top view of the wire feeder;

[0030] Figure 9 It shows Figure 1 A schematic diagram of the hook mechanism of a sewing machine.

[0031] The above figures include the following reference numerals:

[0032] 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

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1 and Figure 2 As shown, a sewing method using a sewing machine according to this embodiment includes: S10, the sewing machine sewing an item to be sewn; S20, a connector assembly connecting a working segment of a first sewing thread and the main body of the first sewing thread, and cutting the connected first sewing thread to a first predetermined length to form a new working segment of the first sewing thread; S30, repeating steps S10 and S20.

[0037] By applying the technical solution of this application, when a sewing machine needs to connect threads while sewing an item, the connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread, thus preventing the appearance of thread ends during sewing. After the working segment of the first sewing thread is connected to the main body of the first sewing thread, the connected first sewing thread is cut to a first predetermined length to form a new working segment of the first sewing thread, which facilitates the sewing operation of the sewing machine. The technical solution of this application effectively solves the problem in the prior art where changing the sewing thread during sewing on a sewing machine's rotary hook results in unsightly sewn items.

[0038] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, in step S20, the working segment of the first sewing thread has a remaining second predetermined length, and the connector assembly connects the working segment of the first sewing thread and the main body of the first sewing thread. The remaining second predetermined length of the working segment of the first sewing thread facilitates the connection between the working segment and the main body of the first sewing thread.

[0039] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, step S20 includes: S21, the sewing thread pulling structure pulls the end of the working segment of the first sewing thread to the connector assembly, and the sewing thread pulling structure pulls the main body of the first sewing thread to the connector assembly; this makes the connector assembly more accurate when connecting the threads, and the connection effect is better. S22, the connector assembly connects the working segment of the first sewing thread and the main body of the first sewing thread into a whole; this makes the sewing of the item to be sewn without thread ends, which is more aesthetically pleasing. S23, the thread cutting structure cuts the main body of the first sewing thread to form a new working segment of the first sewing thread, which facilitates the operation of the working segment of the first sewing thread.

[0040] like Figures 1 to 4 As shown, in the technical solution of this embodiment, the sewing thread traction structure in step S21 includes a first sewing thread traction structure and a second sewing thread traction structure. The first sewing thread traction structure tractions the working segment of the first sewing thread, and the second sewing thread traction structure tractions the main body of the first sewing thread. The arrangement of the first and second sewing thread traction structures improves the sewing efficiency of the sewing machine. It should be noted that the traction directions of the first and second sewing thread traction structures are opposite. This arrangement corresponds to the connection between the working segment and the main body of the first sewing thread, facilitating the connection of the first sewing thread.

[0041] like Figure 4 As shown, in the technical solution of this embodiment, before step S21, the method further includes: the connector drive structure drives the connector to move to the wiring position. This improves the accuracy of wiring, that is, the connection position between the working segment of the first sewing thread and the main body of the first sewing thread is easy to control, so that the connector will not have the first sewing thread not in place when wiring. It should be noted that in the technical solution of this embodiment, the connector drive structure includes a connector drive motor, a screw and a slider. The connector drive motor is fixed on the base structure 210. The output end of the connector drive motor is connected to the screw through fasteners. The slider has internal threads and cooperates with the screw. The slider and the base structure 210 have mutually cooperating slide rails, so that rotation can be converted into the up and down movement of the slider. The connector is connected to the slider through fasteners.

[0042] In this embodiment (not shown in the figure), step S20 further includes collecting the thread ends generated by the connector assembly. This avoids thread accumulation due to prolonged working time, which could hinder equipment operation. The thread ends generated by the connector assembly can be collected by setting two negative pressure suction ports. Two negative pressure suction ports are located below the connector corresponding to the broken thread position. The negative pressure suction collects the thread ends, preventing them from falling randomly into the sewing machine and affecting its operation. The negative pressure suction is normally closed, but is activated when the connector is working.

[0043] like Figures 4 to 9 As shown, in the technical solution of this embodiment, before step S10, the working segment of the first sewing thread needs to be installed in the second thread feeding part of the thread feeder, and the main body of the first sewing thread is set in the first preset position. Installing the working segment of the first sewing thread in the second thread feeding part of the thread feeder allows the first and second sewing threads to be fed separately through different thread feeding parts, reducing the likelihood of interference. Furthermore, this also facilitates the hooking part in hooking the working segment of the first sewing thread.

[0044] like Figures 4 to 9 As shown, in this embodiment, the fixed end of the working segment of the first sewing thread is held and fixed by a first thread clamp, and the connecting end of the main body of the first sewing thread is positioned at a second preset position by a tensioner, a thread guide, and a second thread clamp. The first thread clamp holds and fixes the working segment of the first sewing thread for a relatively short time. For example, during the first stitch, the first end of the working segment of the first sewing thread is held by the first thread clamp, or the first end of the working segment of the first sewing thread is held by the first thread clamp for the first two or three stitches, and then the first thread clamp is released. It should be noted that the connecting end (second end) of the working segment of the first sewing thread is connected to the connecting end of the main body of the first sewing thread by a connector. The aforementioned connecting end is not an endpoint, but refers to a length. The clamping of the main body of the first sewing thread by the second thread clamp makes it easy to control the length of the main body of the first sewing thread.

[0045] like Figures 4 to 9 As shown, in the technical solution of this embodiment, step S10 includes: S11 sewing is performed by the rotation of the thread feeder, the rotation of the thread hook, and the translational movement of the needle of the sewing machine main body assembly. The above structure is compact, ingeniously designed, and easy to operate.

[0046] like Figures 4 to 9 As shown, in the technical solution of this embodiment, step S11 includes: S111 The sewing machine main body assembly drives the second sewing thread, and the first thread feeding part of the thread feeder hooks the second sewing thread. S112 The hooking part of the hooker hooks the working segment of the first sewing thread that cooperates with the second thread feeding part of the thread feeder, and the sewing machine main body assembly continues to drive the second sewing thread, so that the working segment of the first sewing thread and the second sewing thread cooperate to sew the item to be sewn. Through the above operation process, the continuous working cooperation of the working segment of the first sewing thread and the second sewing thread can be achieved.

[0047] like Figures 1 to 9As shown in the technical solution of this embodiment, when the needle of the sewing machine main body component moves downward to its lowest point and is lifted upward, the first thread feeder hooks the second sewing thread, which facilitates the first thread feeder hooking the second sewing thread. The needle continues to move upward, and when it reaches a distance of 1.5mm to 2mm from the lowest point of the needle's movement, the hooking part hooks the working segment of the first sewing thread that cooperates with the second thread feeder, so that the first sewing thread is located within the loop of the first sewing thread. This facilitates the hooking part hooking the working segment of the first sewing thread without interfering with the second sewing thread. It should be noted that at this time, the hooking part is located below the second sewing thread. The thread feeder and hook-up device continue to rotate, the working segment of the first thread disengages from the first thread feeder, and the needle continues to move upward and pass through the item to be sewn. Due to the constraint of the first thread, the second thread is located on both sides of the item to be sewn. The item to be sewn moves forward, and the needle moves downward through the item to be sewn, continuing to move downward. When the needle reaches its lowest point and is lifted upward, the first thread feeder rotates to a position close to the needle, and the first thread feeder hooks the first thread. This process is repeated until the first thread has a remaining second predetermined length.

[0048] like Figures 3 to 9 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 5 to 9As 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 6 and Figure 7 As shown, in the technical solution of 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 6 and Figure 7As 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 6 to 9 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 7 As shown, in this embodiment, the side of the first thread feeder 121 facing the thread feeder 11 is an arc or curved surface. The side of the first thread feeder 121 facing the thread feeder 11 applies force to the first sewing thread. The arc or curved 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 curved 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 7As 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 7 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 6 to 9 As 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 9As shown, the hook device in this embodiment can be: a hook device that cooperates with a thread feeder, the thread feeder being the aforementioned thread feeder, and the hook device including: a hook base 21 and a hook part 22. The first end of the hook part 22 is connected to the hook base 21. The hook part 22 can hook the working line segment of the first sewing thread on the second thread feeder 122 on the thread feeder 10, so that the first sewing thread disengages from the second thread feeder 122, and prepares for the continued cooperation between the second thread feeder 122 and the working line segment of the first 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 5 As shown, the hook-and-feed device (or hook-and-feed device assembly) of this embodiment 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 this embodiment, 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 5As 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 Figures 3 to 5 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 4As 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 4 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 4 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 4As shown, in the technical solution of this embodiment, the connector assembly 300 further includes a thread-cutting structure. The thread-cutting structure 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 tensioner, a thread guide, and a thread clamp. The tensioner, thread guide, and thread clamp are configured according to needs and actual conditions. Multiple thread clamps can be configured; for example, when pulling the two ends of the first sewing thread, the thread clamps are used to clamp and fix the first sewing thread.

[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; alternatively, 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] 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.

[0076] According to another aspect of this application, a sewing machine is also provided, comprising: a sewing machine body and a controller electrically connected to the sewing machine body, the controller including at least one processor and at least one memory, the memory storing a computer program, and when the computer program is executed by the processor, implementing the above-described sewing method.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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 method using a sewing machine, characterized in that, include: The S10 sewing machine sews the items to be sewn; The S20 connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread, and cuts the connected first sewing thread to a first predetermined length to form a new working segment of the first sewing thread. S30 Repeat steps S10 and S20; Step S10 includes: S11 Sewing is performed by the rotation of the thread feeder, the rotation of the thread hook, and the translational movement of the needle of the sewing machine main body assembly; Step S11 includes: The S111 sewing machine main body assembly drives the second sewing thread, and the first thread feeding part of the thread feeder hooks the second sewing thread; S112 The hooking part of the hooker hooks the working segment of the first sewing thread that cooperates with the second thread feeding part of the thread feeder. The main body assembly of the sewing machine continues to drive the second sewing thread, so that the working segment of the first sewing thread and the second sewing thread cooperate to sew the item to be sewn.

2. The sewing method of the sewing machine according to claim 1, characterized in that, In step S20, the working segment of the first sewing thread has a remaining second predetermined length, and the connector assembly connects the working segment of the first sewing thread to the main body of the first sewing thread.

3. The sewing method of the sewing machine according to claim 2, characterized in that, Step S20 includes: S21 The sewing thread traction structure pulls the end of the working segment of the first sewing thread to the connector assembly, and the sewing thread traction structure pulls the main body of the first sewing thread to the connector assembly. The connector assembly described in S22 connects the working segment of the first sewing thread and the main body of the first sewing thread into a whole; The S23 cutting structure cuts off the main body of the first sewing thread to form a new working segment of the first sewing thread.

4. The sewing method of the sewing machine according to claim 3, characterized in that, In step S21, the sewing thread traction structure includes a first sewing thread traction structure and a second sewing thread traction structure. The first sewing thread traction structure tractions the working segment of the first sewing thread, and the second sewing thread traction structure tractions the main body of the first sewing thread.

5. The sewing method of the sewing machine according to claim 3, characterized in that, Before step S21, the method further includes: the connector drive structure drives the connector to move to the wiring position.

6. The sewing method of the sewing machine according to claim 2, characterized in that, Step S20 also includes collecting the wire ends generated by the connector assembly.

7. The sewing method of the sewing machine according to claim 1, characterized in that, Before step S10, the working segment of the first sewing thread needs to be installed in the second thread feeding part of the thread feeder, and the main body of the first sewing thread is set in the first preset position.

8. The sewing method of the sewing machine according to claim 7, characterized in that, The fixed end of the working segment of the first sewing thread is held and fixed by the first thread clamp, and the connecting end of the main body of the first sewing thread is set at a second preset position by the thread tensioner, the thread guide and the second thread clamp.

9. The sewing method of the sewing machine according to claim 1, characterized in that, When the needle of the sewing machine's main body moves downward to its lowest point and is lifted upward, the first thread feeder hooks the second thread. The needle continues to move upward, and when it reaches a distance of 1.5mm to 2mm from the lowest point of its movement, the hooking part hooks the working segment of the first thread that cooperates with the second thread feeder, so that the first thread is located within the loop of the first thread. The thread feeder and the hooking part continue to rotate, and the working segment of the first thread disengages from the first thread feeder. The needle continues to move upward and passes through the item to be sewn. Due to the restriction of the first thread, the second thread is located on both sides of the item to be sewn. The item to be sewn moves forward, and the needle moves downward through the item to be sewn and continues to move downward. When the needle reaches its lowest point and is lifted upward, the first thread feeder rotates to a position close to the needle and hooks the first thread. This process is repeated until the first thread has a remaining second predetermined length.

10. A processor, characterized in that, The processor runs a program for representing the sewing method of the sewing machine according to any one of claims 1 to 9.

11. A sewing machine, characterized in that, include: A sewing machine body and a controller electrically connected to the sewing machine body, the controller including at least one processor and at least one memory, the memory storing a computer program, the computer program being executed by the processor to implement the sewing method of the sewing machine according to any one of claims 1 to 9.

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