Thread feeder, thread hooking device and sewing machine

Abstract

The utility model relates to a thread feeding device, a thread hooking device and a sewing machine. The wire feeding structure is connected with the wire feeding seat, the wire feeding structure is provided with a first wire feeding part and a second wire feeding part, and a preset distance is formed between one end, far away from the wire feeding seat, of the first wire feeding part and one end, far away from the wire feeding seat, of the second wire feeding part. According to the technical scheme, the problem that in the prior art, when a rotating shuttle of a sewing machine is used for sewing clothes, sewing threads are replaced, and consequently sewn objects are not attractive is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of sewing machines, and in particular to a thread feeder, a thread hook and a sewing machine. Background Art

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

[0003] The rotary shuttle sewing machine consists of a machine head, a rotary shuttle, a needle bar, a shuttle, a thread take-up rod, and a feeding mechanism. The machine head includes the core components of the sewing machine, such as the rotary shuttle, the needle bar, the shuttle, and the thread take-up rod. The rotary shuttle is a key component of the sewing machine. When in use, the rotary shuttle is equipped with the bottom thread, and the needle bar is equipped with the upper thread. The needle bar moves up and down to pass through the fabric and make the upper thread and the bottom thread match.

[0004] In some prior art, the bobbin thread is installed on the rotary hook. Due to the limitation of the rotary hook structure, the bobbin thread cannot be installed too much, and the operator cannot observe the use of the bobbin thread. A new bobbin thread can be installed only after the use of the bobbin thread is completed. There will be a joint between the new bobbin thread and the old bobbin thread, which will make the sewing product unsightly. Utility Model Content

[0005] The present application provides a thread feeder, a thread hook and a sewing machine, so as to solve the problem in the prior art that when the rotary hook of the sewing machine is sewing clothes, the sewing thread is replaced, resulting in unsightly sewn goods.

[0006] A wire feeder provided according to the present application includes: a wire feeding seat; a wire feeding structure, which is connected to the wire feeding seat, and has a first wire feeding part and a second wire feeding part, and an end of the first wire feeding part away from the wire feeding seat is at a predetermined distance from an end of the second wire feeding part away from the wire feeding seat.

[0007] Furthermore, the first end of the first wire feeding part is connected to the wire feeding seat, 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 a side of the first wire feeding part away from the wire feeding seat.

[0008] Further, in a projection parallel to the axial direction of the wire feeder, the first end of the second wire feeding portion and the second end of the second wire feeding portion are both located between the first end of the first wire feeding portion and the second end of the first wire feeding portion.

[0009] Furthermore, the end of the first wire feeding portion away from the wire feeding seat has a pointed end, and the cross-sectional area of ​​the first wire feeding portion from the end away from the wire feeding seat to the end close to the wire feeding seat at least partially increases gradually.

[0010] Furthermore, a side of the first wire feeding portion facing the wire feeding seat is an arc line or an arc surface.

[0011] Furthermore, the end of the second wire feeding portion away from the first wire feeding portion has a pointed end, and the cross-sectional area of ​​the second wire feeding portion from the end away from the first wire feeding portion to the end close to the first wire feeding portion at least partially increases gradually.

[0012] Further, a side of the second wire feeding portion facing the first wire feeding portion is an arc or an arc surface, and / or a side of the first wire feeding portion facing the second wire feeding portion is an arc or an arc surface.

[0013] Furthermore, the wire feeding seat includes a mounting portion and a connecting portion, the mounting portion is connected to the connecting portion, the mounting portion is connected to the driving member, and the wire feeding structure is arranged on the connecting portion.

[0014] According to another aspect of the present application, a wire hook is provided, which cooperates with a wire feeder, and the wire feeder is the above-mentioned wire feeder. The wire hook comprises: a wire hook seat; a wire hook part, and a first end of the wire hook part is connected to the wire hook seat.

[0015] Further, in the direction from the second end of the line hooking portion to the first end of the line hooking portion, the cross-sectional area of ​​the line hooking portion at least partially increases gradually.

[0016] Furthermore, one side of the line hooking portion toward the line hooking seat is an arc surface or an arc line, and in the direction from the second end of the line hooking portion to the first end of the line hooking portion, the slope of the side of the line hooking portion toward the line hooking seat gradually increases.

[0017] According to another aspect of the present application, a sewing machine is also provided, which includes a sewing machine body and a thread feeder and a thread hook arranged on the sewing machine body, the thread feeder is the above-mentioned thread feeder, and the thread hook is the above-mentioned thread hook.

[0018] By applying the technical solution of the present application, the first sewing line cooperates with the first thread feeding part, and the second sewing line cooperates with the second thread feeding part. The end of the first thread feeding part away from the thread feeding seat has a predetermined distance from the end of the second thread feeding part away from the thread feeding seat, so that when the first thread feeding part cooperates with the first sewing line, the second thread feeding part will not interfere; when the second thread feeding part cooperates with the second sewing line, the first thread feeding part will not interfere. The above structure does not require the installation of sewing lines on the thread feeder, which can ensure that the sewing lines are within a controllable range and will not cause the problem of unqualified sewn items due to the uncontrollable sewing lines during the sewing process. The technical solution of the present application effectively solves the problem in the prior art that when the sewing machine shuttle is sewing clothes, the sewing items are not beautiful due to the replacement of the sewing lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A schematic front view of a wire feeder according to an embodiment of the present application is shown;

[0022] Figure 2 Shows Figure 1 A partial enlarged schematic diagram of the wire feeder;

[0023] Figure 3 Shows Figure 1 A schematic top view of a wire feeder;

[0024] Figure 4 A schematic structural diagram of a thread hooking device according to an embodiment of the present application is shown;

[0025] Figure 5 A schematic structural diagram of a wire feeder assembly according to an embodiment of the present application is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Wire feeder; 11. Wire feed seat; 111. Mounting portion; 112. Connecting portion; 12. Wire feeding structure; 121. First wire feeding portion; 122. Second wire feeding portion; 20. Wire hooker; 21. Wire hook seat; 22. Wire hook portion; 30. Driving member. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0031] like Figures 1 to 3 As shown, the wire feeder of this embodiment includes: a wire feeding seat 11 and a wire feeding structure 12. The wire feeding structure 12 is connected to the wire feeding seat 11, and the wire feeding structure 12 has a first wire feeding part 121 and a second wire feeding part 122, and an end of the first wire feeding part 121 away from the wire feeding seat 11 and an end of the second wire feeding part 122 away from the wire feeding seat 11 have a predetermined distance.

[0032] By applying the technical solution of this embodiment, the first sewing line cooperates with the first thread feeding part 121, and the second sewing line cooperates with the second thread feeding part 122. The end of the first thread feeding part 121 away from the thread feeding seat has a predetermined distance from the end of the second thread feeding part 122 away from the thread feeding seat 11, so that when the first thread feeding part 121 cooperates with the first sewing line, the second thread feeding part 122 will not interfere; when the second thread feeding part 122 cooperates with the second sewing line, the first thread feeding part 121 will not interfere. The above structure does not require the installation of sewing lines on the thread feeder 10, so that the sewing lines can be ensured to be within a controllable range, and will not cause the problem of unqualified sewn items due to the uncontrollable sewing lines during the sewing process. The technical solution of this embodiment effectively solves the problem of unsightly sewn items caused by replacing the sewing lines when sewing clothes in the prior art sewing machine shuttle.

[0033] It should be noted that the wire feeder 10 of the present embodiment needs to be used in conjunction with the wire hooker 20 , and the specific structure and the method of cooperation of the wire hooker 20 are described in detail below.

[0034] like Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the first end of the first wire feeding part 121 is connected to the wire feeding seat 11, the first end of the second wire feeding part 122 is connected to the first wire feeding part 121, and the second wire feeding part 122 is located on the side of the first wire feeding part 121 away from the wire feeding seat 11. Such a structure ensures that the distance between the first wire feeding part 121 and the second wire feeding part 122 is set reasonably on the one hand, and on the other hand, the groove formed by the first wire feeding part 121 and the second wire feeding part 122 can form a good constraint on the sewing line (the sewing line refers to the first sewing line and the second sewing line), specifically, the second sewing line.

[0035] It should be noted that the first wire feeding portion 121 and the second wire feeding portion 122 have the same rotation direction, that is, the first wire feeding portion 121 and the second wire feeding portion 122 have the same extending direction.

[0036] like Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, in the projection in the 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. Such a structure allows the first sewing line to be avoided and then the second sewing line of the second wire feeder 122 can be used to perform the next cycle of sewing under the action of the thread hook 20. It should be noted that in the present application, the end of the first wire feeder 121 away from the wire feeder seat 11 corresponds to the second end of the first wire feeder 121, and the end of the second wire feeder 122 away from the wire feeder seat 11 corresponds to the second end of the first wire feeder 121.

[0037] like Figures 1 to 3 As shown, in the technical solution of this embodiment, the end of the first wire feeding portion 121 away from the wire feeding seat 11 has a pointed tip, and the cross-sectional area of ​​the first wire feeding portion 121 from the end away from the wire feeding seat 11 to the end close to the wire feeding seat 11 at least partially gradually increases. The second end of the first wire feeding portion 121 is a pointed tip, and such a structure is easy to cooperate with the first sewing thread. The cross-sectional area of ​​the first wire feeding portion 121 from the end away from the wire feeding seat 11 to the end close to the wire feeding seat 11 at least partially gradually increases, and such a structure enables the first sewing thread to have enough space to pass through the second wire feeding portion 122 under the action of the first wire feeding portion 121, and the second wire feeding portion 122 can send the second sewing thread to a suitable position to cooperate with the first sewing thread.

[0038] like Figure 2As shown, in the technical solution of the present embodiment, the side of the first wire feeding portion 121 facing the wire feeding seat 11 is an arc or an arc surface. The first wire feeding portion 121 applies a force to the first sewing line on the side facing the wire feeding seat 11, and the side of the first wire feeding portion 121 facing the wire feeding seat 11 is an arc or an arc surface, so that the force and running trajectory of the first wire feeding portion 121 on the first sewing line are a gradual transition, and it is not easy to have a sudden change in the force and running trajectory, that is, the first sewing line is more stable. It should be noted that the side of the first wire feeding portion 121 facing the wire feeding seat 11 is a gradual arc or a gradual arc surface. In the direction from the second end of the first wire feeding portion 121 to the first end of the first wire feeding portion 121, the slope of the first wire feeding portion 121 on the side of the wire feeding seat 11 gradually increases (the above slope may have some slight mutations).

[0039] like Figure 2 As shown, in the technical solution of this embodiment, the second wire feeding portion 122 has a pointed end away from the first wire feeding portion 121, and the cross-sectional area of ​​the second wire feeding portion 122 from the end away from the first wire feeding portion 121 to the end close to the first wire feeding portion 121 gradually increases at least in part. The second wire feeding portion 122 has a pointed end away from the first wire feeding portion 121, and such a structure makes it easy for the second wire feeding portion 122 to cooperate with the second sewing thread, and then when the second sewing thread gradually increases in the second wire feeding portion 122, the second sewing thread is easy to cooperate with the thread hook 20. In the direction from the second end of the second wire feeding portion 122 to the first end of the second wire feeding portion 122, the slope of the second wire feeding portion 122 toward the side of the first wire feeding portion 121 increases (the above slope may have some slight mutations).

[0040] It should be noted that the wire feeding structure 12 is plate-shaped, and the first end of the plate-shaped wire feeding structure 12 is connected to the wire feeding seat 11, and 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, and there is a groove between the tip of the first wire feeding part 121 and the tip of the second wire feeding part 122.

[0041] like Figure 2 As shown, in the technical solution of this embodiment, the side of the second thread feeding part 122 facing the first thread feeding part 121 is an arc or an arc surface, and the side of the first thread feeding part 121 facing the second thread feeding part 122 is an arc or an arc surface. In this way, the operation of the second sewing line is more stable. As another embodiment, the side of the second thread feeding part 122 facing the first thread feeding part 121 is an arc or an arc surface.

[0042] like Figures 1 to 3As shown, in the technical solution of the present embodiment, the wire feeding seat 11 includes a mounting portion 111 and a connecting portion 112, the mounting portion 111 is connected to the connecting portion 112, the mounting portion 111 is connected to the driving member 30, and the wire feeding structure 12 is arranged on the connecting portion 112. The mounting portion 111 is connected to the driving member 30, so that the setting of the connecting portion 112 is more flexible and is not easy to interfere with the setting of the wire feeding structure 12. The connecting portion 112 is connected to the wire feeding structure 12. It should be noted that the mounting portion 111, the connecting portion 112 and the wire feeding structure 12 are an integral structure. In the present embodiment, the mounting portion 111 is a cylindrical structure, the driving member 30 extends into the middle mounting hole of the mounting portion 111, and the driving member 30 is connected to the mounting portion 111 by a top screw, and an interference connection can also be used as another connection method. The connecting portion 112 is a circular plate-shaped structure, and the mounting portion 111 and the wire feeding structure 12 are respectively located on both sides of the connecting portion 112.

[0043] like Figure 4 As shown, the present application also provides a thread hook. An embodiment of the thread hook may be: the thread hook cooperates with the thread feeder, the thread feeder is the above-mentioned thread feeder, and the thread hook includes: a thread hook seat 21 and a thread hook portion 22. The first end of the thread hook portion 22 is connected to the thread hook seat 21. The thread hook portion 22 can hook the second sewing thread of the second thread feeding portion 122 on the thread feeder 10, so that the second sewing thread is separated from the second thread feeding portion 122, and prepare for the second thread feeding portion 122 to cooperate with the second sewing thread.

[0044] like Figure 4 As shown, in the technical solution of this embodiment, the cross-sectional area of ​​the thread hooking portion 22 is at least partially gradually increased in the direction from the second end of the thread hooking portion 22 to the first end of the thread hooking portion 22. The second end of the thread hooking portion 22 is a pointed end, which is convenient for hooking the thread, that is, hooking the second sewing line, more accurately.

[0045] like Figure 4 As shown, in the technical solution of this embodiment, the side of the thread hooking portion 22 facing the thread hooking seat 21 is an arc surface or an arc line, and in the direction from the second end of the thread hooking portion 22 to the first end of the thread hooking portion 22, the slope of the thread hooking portion 22 on the side facing the thread hooking seat 21 gradually increases. The side of the thread hooking portion 22 facing the thread hooking seat 21 is an arc surface or an arc line, so that the thread hook 20 is relatively smooth when cooperating with the second sewing thread. The slope of the thread hooking portion 22 on the side facing the thread hooking seat 21 gradually increases, so that the movement effect of the second sewing thread is better. It should be noted that the above-mentioned slope of the thread hooking portion 22 on the side facing the thread hooking seat 21 gradually increases to the main part of the thread hooking portion 22. In order to achieve a better thread hooking effect, the end of the second end of the thread hooking portion 22 may have some mutations.

[0046] like Figure 5As shown, the present application also provides a hook thread feeder. The hook thread feeder includes: a thread feeder 10 and a thread hook 20. The thread feeder 10 is the above-mentioned thread feeder 10. The thread hook 20 is the above-mentioned thread hook 20. The embodiment of the present application feeds the thread through the thread feeder 10, and the thread hook 20 cooperates with the thread feeder 10 to hook the sewing thread on the thread feeder 10 or send it to the thread feeder 10, so that the first sewing thread and the second sewing thread are sewn together. The hook thread feeder replaces the existing rotary shuttle function, and there is no need to set a sewing thread spool on the hook thread feeder, which effectively avoids the unqualified sewing products caused by the use of the sewing thread.

[0047] like Figure 5 As shown, the first embodiment of the hook wire feeder can be: the driving member 30 includes a first driving member and a second driving member, the wire feeder 10 is connected to the first driving member, and the hook wire device 20 is connected to the second driving member. The wire feeder 10 and the hook wire device 20 of this embodiment are arranged face to face (the wire feeding structure 12 and the hook wire portion 22 are adjacent). It should be noted that when the wire feeder 10 and the hook wire device 20 are different driving members 30, when the wire feeder 10 and the hook wire device 20 are arranged face to face, the rotation direction of the wire feeding structure 12 and the hook wire portion 22 can also be the same or different, as long as the first drive motor connected to the first driving member and the second drive motor connected to the second driving member are controlled. The first drive motor and the second drive motor can be forward and reverse motors, or they can be motors that the first drive motor and the second drive motor rotate in the same direction. The driving member 30 of this embodiment is a drive shaft, the first drive member is a first drive shaft, and the second drive member is a second drive shaft.

[0048] Embodiment 2 of the hook wire feeder (not shown in the figure) can be: the hook wire feeder also includes a driving member 30, and the wire feeder 10 and the wire hooker 20 are both arranged on the driving member 30. When the driving member 30 is one, the wire feeder 10 is directly connected to the driving member 30, and the wire hooker 20 is connected to the driving member 30 through a reverse transmission member, or the wire hooker 20 is directly connected to the driving member 30, and the wire feeder 10 is connected to the driving member 30 through a reverse transmission member. This embodiment can make the wire feeder 10 and the wire hooker 20 cooperate with the same driving member 30. When it is the same driving member 30, the rotation direction of the wire feeding structure 12 of the wire feeder 10 is opposite to the rotation direction of the wire hooking part 22 of the wire hooker 20. The above-mentioned reverse transmission member is a reverse gear, which will not be repeated here.

[0049] The technical solution of the present application also provides a sewing machine, including: the sewing machine includes a sewing machine body and a hook feeder arranged on the sewing machine body, and the hook feeder is the above-mentioned hook feeder. In addition to having the function of the rotary hook in the prior art, the hook feeder of the sewing machine of the present application can also realize that the sewing thread shaft does not need to be arranged on the rotary hook, so that the sewing thread is easy to monitor and it is not easy to cause the sewing product to be unqualified due to the sudden use of the sewing thread.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wire feeder, characterized in that: include: Wire feeding seat (11); A wire feeding structure (12), the wire feeding structure (12) is connected to the wire feeding seat (11), the wire feeding structure (12) has a first wire feeding part (121) and a second wire feeding part (122), an end of the first wire feeding part (121) away from the wire feeding seat (11) and an end of the second wire feeding part (122) away from the wire feeding seat (11) have a predetermined distance.

2. The wire feeder according to claim 1, characterized in that: The first end of the first wire feeding portion (121) is connected to the wire feeding seat (11), the first end of the second wire feeding portion (122) is connected to the first wire feeding portion (121), and the second wire feeding portion (122) is located on a side of the first wire feeding portion (121) away from the wire feeding seat (11).

3. The wire feeder according to claim 2, characterized in that: In a projection parallel to the axial direction of the wire feeder, the first end of the second wire feeding portion (122) and the second end of the second wire feeding portion (122) are both located between the first end of the first wire feeding portion (121) and the second end of the first wire feeding portion (121).

4. The wire feeder according to claim 1, characterized in that: The end of the first wire feeding portion (121) away from the wire feeding seat (11) has a pointed end, and the cross-sectional area of ​​the first wire feeding portion (121) from the end away from the wire feeding seat (11) to the end close to the wire feeding seat (11) at least partially gradually increases.

5. The wire feeder according to claim 4, characterized in that: The side of the first wire feeding portion (121) facing the wire feeding seat (11) is an arc line or an arc surface.

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

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

8. The wire feeder according to any one of claims 1 to 7, characterized in that: The wire feeding seat (11) comprises a mounting portion (111) and a connecting portion (112), the mounting portion (111) being connected to the connecting portion (112), the mounting portion (111) being connected to a driving member (30), and the wire feeding structure (12) being arranged on the connecting portion (112).

9. A thread hook, characterized in that: The wire hook cooperates with the wire feeder, the wire feeder is the wire feeder according to any one of claims 1 to 8, and the wire hook comprises: Wire hook seat (21); A line hooking portion (22), wherein a first end of the line hooking portion (22) is connected to the line hooking seat (21).

10. The thread hook according to claim 9, characterized in that: In the direction from the second end of the hooking line portion (22) to the first end of the hooking line portion (22), the cross-sectional area of ​​the hooking line portion (22) at least partially increases gradually.

11. The thread hook according to claim 9, characterized in that: The side of the line hooking portion (22) facing the line hooking seat (21) is a curved surface or a curved line, and in the direction from the second end of the line hooking portion (22) to the first end of the line hooking portion (22), the slope of the side of the line hooking portion (22) facing the line hooking seat (21) gradually increases.

12. A sewing machine, characterized in that: include: The sewing machine includes a sewing machine body and a thread feeder and a thread hook arranged on the sewing machine body, the thread feeder is the thread feeder according to any one of claims 1 to 8, and the thread hook is the thread hook according to any one of claims 9 to 11.

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