Thread trapper assembly and sewing machine

Abstract

The utility model discloses a thread trapper assembly and a sewing machine, the thread trapper assembly comprises a fixed part used for being connected with a machine head shell, a rotating part used for being connected with the machine head shell and a thread tension balancer, the fixed part limits the rotating range of the rotating part, the thread tension balancer is connected with the rotating part, and the thread tension balancer can rotate; therefore, the thread tension balancer has the function of automatically adjusting the thread tension. The wire tension adjusting device has the effect of improving the adjusting range of the wire tension.

Description

Technical Field

[0001] The present application relates to the field of self - balancing wire tension, and in particular to a wire clamping device assembly and a sewing machine. Background Art

[0002] In some scenarios of wire usage, due to different requirements for wire materials, the consumption rate of the wire during use is different. In order to prevent the wire from being too loose or too tight and affecting the use effect of the wire, the requirements for wire winding and unwinding are relatively high. Poor control of wire tension will lead to unstable quality at the sewing line of the sewn product, and there will often be problems such as unstable thread taking - up, uneven stitch, fabric wrinkling, and thread breakage. Therefore, it is necessary to actively adjust the wire tension according to the needs of the feeding end. During the process of a sewing machine sewing fabric, as the sewing needle sews, the sewing thread needs to be tightened and loosened from time to time. Generally, when the needle enters, the sewing thread needs to be loosened, and when it is pulled out, it needs to be tightened. Moreover, the tension force needs to adapt to the sewing speed and the thickness of the fabric to ensure that there is no thread breakage and the quality of the sewn product can be guaranteed.

[0003] In the prior art, the wire tension of a sewing machine is automatically adjusted through pulleys and wire clamping devices, so that the wire tension can be flexibly adjusted according to high - speed and low - speed sewing, thick materials and thin materials during sewing. However, the adjustment range of the wire tension of the sewing machine is limited. Relying on pulleys to adjust the wire tension has a limited range, and it is relatively difficult to sew multi - layer fabrics.

[0004] In summary, in the prior art, the adjustment of the wire tension range is limited and cannot meet the usage requirements for a wide range of wire tensions. Therefore, there is room for further improvement. Utility Model Content

[0005] In view of this, the present application provides a wire clamping device assembly, which can make the wire tension have a wide adjustment range, thereby meeting the requirements for a wide range of wire tensions in use.

[0006] In order to improve the adjustment range of wire tension, the present application provides a wire clamping device assembly.

[0007] The wire clamping device assembly provided by the present application adopts the following technical solutions:

[0008] A wire clamping device assembly includes a fixing member for connecting with the head shell, a rotating member for connecting with the head shell, and a wire tension balancer, such that the fixing member restricts the rotation range of the rotating member. The wire tension balancer is connected to the rotating member, and the wire tension balancer itself can rotate, so that the wire tension balancer has the function of self - adjusting wire tension.

[0009] By adopting the above technical solution, since the housing of the thread tension balancer rotates according to the thread tension requirement to realize the self-adjustment mechanism for the tightness of the thread tension, for fabrics of general thickness, the thread tension balancer can meet the requirement for the variation range of the thread tension during the sewing process. However, for application scenarios such as multi-layer thick fabrics that have a greater requirement for the thread tension range, relying solely on the thread tension balancer is insufficient. By setting a rotating member, when the thread clamp assembly realizes the thread tension range, it not only has the minimum thread tension adjustment range of the thread tension balancer but also the sum of the maximum thread tension adjustment range of the thread tension balancer and the maximum value of the rotation range of the rotating member, thereby enabling the thread clamp assembly to have a larger thread tension adjustment range.

[0010] Preferably, it further includes a thread clamp, and the thread clamp is either connected to the rotating member or connected to the headstock housing.

[0011] By adopting the above technical solution, for the thread clamp, it can either be directly set on the headstock housing to adjust the tightness of the thread clamping or be coaxially arranged with the rotating member to fix the position to realize the thread clamping adjustment function. And for special requirements, the thread clamp can also rotate with the rotating member.

[0012] Preferably, the fixing member includes a cross plate for connecting to the headstock housing. The cross plate is perpendicular to the rotating member, and the cross plate is used to limit the rotation range of the rotating member.

[0013] By adopting the above technical solution, the cross plate limits the rotation range of the rotating member, thereby adjusting the thread tension adjustment range of the thread clamp assembly.

[0014] Preferably, the fixing member includes a vertical plate and a cross plate. The vertical plate is arranged parallel to the rotating member, and the cross plate is connected to the vertical plate such that the cross plate is perpendicular to the rotating member. At least a part of the rotating member is located between the vertical plate and the cross plate.

[0015] By adopting the above technical solution, multiple cross plates can be provided on the vertical plate, which is convenient for the installation of multiple cross plates. The cross plates limit the rotation range of the rotating member, thereby adjusting the thread tension adjustment range of the thread clamp assembly.

[0016] Preferably, a limit adjustment member is provided on the cross plate, and the limit adjustment member is used to adjust the rotation range of the rotating member.

[0017] By adopting the above technical solution, the limiter is located on the cross plate, such that the rotating member can not only be limited by the cross plate body but also by adjusting the connection relationship between the limit adjustment member and the cross plate, thereby adjusting the rotation range of the rotating member and further controlling the adjustment range of the thread tension.

[0018] Preferably, the horizontal plate includes a first horizontal plate and a second horizontal plate. The first horizontal plate is connected to the vertical plate, and the second horizontal plate is also connected to the vertical plate, such that both the first horizontal plate and the second horizontal plate are perpendicular to the rotating member, and at least a part of the rotating member is located between the first horizontal plate and the second horizontal plate. A limiting and adjusting member is provided on the horizontal plate, and the limiting and adjusting member includes a first limiting and adjusting member and a second limiting and adjusting member. The first limiting and adjusting member is connected to the first horizontal plate, and the second limiting and adjusting member is connected to the second horizontal plate.

[0019] By adopting the above technical solution, the rotating member is located between the first horizontal plate and the second horizontal plate of the fixing member, such that the first horizontal plate and the second horizontal plate on the fixing member perform bidirectional limiting on the rotating member, and the limiting regulator also adjusts the rotating range of the rotating plate for bidirectional rotation.

[0020] Preferably, the limiting and adjusting member is a screw, and the screw is connected to the horizontal plate, such that the user adjusts the limiting degree of the screw on the rotating member by adjusting the connection degree between the screw and the horizontal plate.

[0021] By adopting the above technical solution, by rotating the screw, the fixing member performs adjustable limiting on the rotating member through the limiting and adjusting member, and further enables the wire tension range of the wire to be adjustable.

[0022] Preferably, the vertical plate includes an upper vertical plate and a lower vertical plate. Long circular holes are formed on the upper vertical plate and the lower vertical plate, and the upper vertical plate and the lower vertical plate are connected through the long circular holes. The horizontal plate includes a first horizontal plate and a second horizontal plate. The first horizontal plate is connected to the upper vertical plate, and the second horizontal plate is also connected to the lower vertical plate, such that both the first horizontal plate and the second horizontal plate are perpendicular to the rotating member, and at least a part of the rotating member is located between the first horizontal plate and the second horizontal plate, such that the user adjusts the connection space and connection angle between the upper vertical plate and the lower vertical plate through the long circular holes to adjust the limiting degree of the horizontal plate on the rotating member.

[0023] By adopting the above technical solution, since the connection positions between the long circular holes can be widely changed, the user can adjust the distance and angle between the first horizontal plate and the second horizontal plate through the long circular holes, and further adjust the rotating range of the rotating member accordingly, so as to adjust the wire tension range of the wire clamping component.

[0024] Preferably, a limiting and adjusting member is provided on the horizontal plate, and the limiting and adjusting member includes a first limiting and adjusting member and a second limiting and adjusting member. The first limiting and adjusting member is connected to the first horizontal plate, and the second limiting and adjusting member is connected to the second horizontal plate.

[0025] By adopting the above technical solution, the thread clamping component can not only adjust the distance and angle between the first cross plate and the second cross plate through the oblong hole, but also further adjust the limitation of the rotation range of the rotating part through the first limit adjusting part and the second limit adjusting part.

[0026] In order to improve the adjustment range of the thread tension, the present application provides a sewing machine.

[0027] The sewing machine provided by the present application adopts the following technical solution:

[0028] It includes a machine head and the above-mentioned thread clamping component, and the machine head is connected to the thread clamping component.

[0029] By adopting the above technical solution, the thread clamping component not only enables the thread tension to have a self-adjusting function through the rotation of the thread tension balancer itself, but also increases the adjustment range of the thread tension through the rotation of the rotating part. Furthermore, the sewing machine equipped with the thread clamping component can also adjust the rotation range of the rotating part through the machine head, so that the sewing machine has a relatively wide thread tension adjustment range during the sewing process.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Since the housing of the thread tension balancer rotates according to the thread tension requirement to achieve the self-adjusting mechanism for the tightness of the thread tension, for fabrics of general thickness, the thread tension balancer can meet the requirement of the change range of the thread tension during the sewing process. However, for application scenarios with multiple layers of thick fabrics and a greater requirement for the thread tension range, relying solely on the thread tension balancer is insufficient. By setting the rotating part, when the thread clamping component realizes the thread tension range, it not only has the minimum thread tension adjustment range of the thread tension balancer, but also can have the sum of the maximum thread tension adjustment range of the thread tension balancer and the maximum value of the rotation range of the rotating part, thus enabling the thread clamping component to have a larger thread tension adjustment range;

[0032] 2. The rotating part is located between the first cross plate and the second cross plate of the fixing part, enabling the first cross plate and the second cross plate on the fixing part to perform two-way limiting on the rotating part, and the limit regulator also adjusts the rotation range of the two-way rotation of the rotating plate;

[0033] 3. Since the connection position between the oblong holes can be widely changed, the user can adjust the distance and angle between the first cross plate and the second cross plate through the oblong holes, thereby adjusting the rotation range of the rotating part and adjusting the thread tension range of the thread clamping component;

[0034] 4. The thread clamping component not only enables the thread tension to have a self - adjusting function through the rotation of the thread tension balancer itself, but also increases the adjustment range of the thread tension through the rotation of the rotating member. Furthermore, the sewing machine equipped with the thread clamping component can also adjust the rotation range of the rotating member through the machine head, so that the sewing machine has a relatively wide range of thread tension adjustment during the sewing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the thread clamping component in this embodiment;

[0036] Figure 2 It is a top view of the thread clamping component in this embodiment;

[0037] Figure 3 It is a schematic structural diagram of the machine head housing and the thread clamping component in this embodiment.

[0038] Reference numerals: 1. Fixed part; 2. Rotating part; 3. Thread clamp; 4. Thread tension balancer; 5. Vertical plate; 6. Horizontal plate; 7. Limit adjusting part; 8. First horizontal plate; 9. Second horizontal plate; 10. First limit adjusting part; 11. Second limit adjusting part; 12. Upper vertical plate; 13. Lower vertical plate; 14. Long circular hole; 15. Machine head housing; 16. Thread passing part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The following further Figures 1-3 describes the present application in detail.

[0040] Embodiment 1

[0041] The embodiment of the present application discloses a thread clamping component.

[0042] Referring to Figure 1 and Figure 2 , it includes a fixed part 1 for connecting with the machine head housing 15, a rotating part 2 for connecting with the machine head housing 15, and a thread tension balancer 4. A part of the rotating part 2 is located inside the fixed part 1, so that the fixed part 1 can limit the rotation range of the rotating part 2, and the thread tension balancer 4 is located on the rotating part 2.

[0043] The fixing member 1 includes a vertical plate 5 and a horizontal plate 6. The vertical plate 5 and the horizontal plate 6 are integrally formed. The horizontal plate 6 includes a first horizontal plate 8 and a second horizontal plate 9. One end of the vertical plate 5 is connected to the first horizontal plate 8, and the other end is connected to the second horizontal plate 9. And the vertical plate 5 is arranged parallel to the rotating member 2. The first horizontal plate 8 and the second horizontal plate 9 are both arranged perpendicular to the rotating member 2. Part of the rotating member 2 is located between the first horizontal plate 8 and the second horizontal plate 9. When the rotating member 2 rotates, the positive rotation direction or the negative rotation direction of the rotating member 2 is restricted by the first horizontal plate 8 or the second horizontal plate 9 (taking the counterclockwise rotation direction as the positive direction and the clockwise rotation direction as the negative direction). The fixing member 1 restricts the adjustable wire tension range of the wire clamping component by restricting the rotation range of the rotating member 2, so that the wire clamping component can not only increase the adjustment range of the wire tension on the basis of the self-adjustment of the wire tension by the wire tension balancer 4, but also further select the adjustment range of the wire tension by restricting the rotation range of the rotating member 2.

[0044] The rotating member 2 includes a plate member, a bearing and a rotating shaft. One end of the rotating shaft is connected to the machine head housing 15, and the other end is sleeved with a bearing. The bearing is inserted into the plate member, so that the plate member rotates smoothly on the rotating shaft through the bearing when a force is applied. The wire tension balancer 4 includes a balance shaft, a bearing, a wire clamping member and a wire clamping shell. One end of the balance shaft is inserted into the plate member, so that the balance shaft moves along with the movement of the plate member, and the other end is sleeved with a bearing. The wire clamping member is sleeved on the bearing, and a groove for clamping the wire is formed on the wire clamping member. The wire clamping shell is sleeved on the bearing, and the wire clamping member is located inside the wire clamping shell. And a shell groove for the wire to pass through is formed on one side of the wire clamping shell.

[0045] Further, in this embodiment, the vertical plate 5 can also be in other forms. For example, the vertical plate 5 includes an upper vertical plate 12 and a lower vertical plate 13. Long round holes 14 are formed on both the upper vertical plate 12 and the lower vertical plate 13. The upper vertical plate 12 is integrally formed with the first horizontal plate 8, and the lower vertical plate 13 is integrally formed with the second horizontal plate 9. The upper vertical plate 12 and the lower vertical plate 13 are connected by screws through the long round holes 14. The long round holes 14 enable the connection position between the upper vertical plate 12 and the lower vertical plate 13 to be adjusted. Furthermore, the distance between the first horizontal plate 8 on the upper vertical plate 12 and the second horizontal plate 9 on the lower vertical plate 13 can be adjusted and changed. And the screws and the long round holes 14 can also adjust the angle between the upper vertical plate 12 and the lower vertical plate 13, so as to adjust the adjustment range of the horizontal plate 6 on the rotating member 2.

[0046] Further, in this embodiment, a limit adjusting member 7 is provided on the horizontal plate 6. The limit adjusting member 7 can be a screw. The screw is threadedly connected to the horizontal plate 6, so that the screw can change its position on the horizontal plate 6. Furthermore, the screw replaces the horizontal plate 6 to perform rotational limit on the rotating member 2. By adjusting the connection tightness between the limit adjusting member 7 and the horizontal plate 6, the rotation range of the rotating member 2 is adjusted, and thus the adjustment range of the wire tension is adjusted.

[0047] Further, in this embodiment, the limit adjusting member 7 includes a first limit adjusting member 10 and a second limit adjusting member 11. The first limit adjusting member 10 is connected to the first cross plate 8, and the second limit adjusting member 11 is connected to the second cross plate 9.

[0048] Further, in this embodiment, there is no particular limitation on the form of the limit adjusting member 7. It is sufficient that those skilled in the art are familiar with the form that can realize the adjustment of the rotation range of the rotating member 2 through the setting of the limit adjusting member 7 on the cross plate 6. Those skilled in the art can replace the form of the limit adjusting member 7 according to the requirements of specific application situations; the limit adjusting member 7 can be in the form of a plug member, a sliding member, or other forms that can limit the rotation of the rotating member 2.

[0049] Further, in this embodiment, the fixing member 1 includes a cross plate 6 connected to the machine head housing 15, and the adjustment of the rotational limit of the rotating member 2 is achieved by directly connecting the cross plate 6 to the machine head housing 15.

[0050] Further, in this embodiment, there is no particular limitation on the number, angle, and position of the cross plate 6. It is sufficient that those skilled in the art are familiar with the form that can realize the limit of the rotation function of the rotating member 2 through the setting of the cross plate 6. Those skilled in the art can increase, decrease, or adjust the number, angle, and position of the cross plate 6 according to the requirements of specific application situations and the wire tension range.

[0051] Further, in this embodiment, there is no particular limitation on the form of the wire tension balancer 4. It is sufficient that those skilled in the art are familiar with the structure that can realize the wire tension adjustment function. Those skilled in the art can replace the wire tension balancer 4 according to the requirements of specific application situations.

[0052] Further, in this embodiment, the wire clamping device assembly further includes a wire clamping device 3. The wire clamping device 3 can be arranged on the machine head housing 15 or connected to the machine head housing 15 by being coaxially arranged with the rotating member 2. The wire clamping device 3 can also be arranged near the axis of the rotating member 2 to reduce the moving effect of the wire clamping device 3, thereby realizing the situation where the position of the wire clamping device 3 is fixed. The wire clamping device 3 includes a mounting shaft, a first wire clamping disc, a second wire clamping disc, and an adjusting cap. The mounting shaft is inserted into the inner wall of the bearing, so that the position of the wire clamping device 3 is fixed and will not rotate with the rotation of the plate member. A deep groove is formed at the part of the mounting shaft away from the bearing. Both the first wire clamping disc and the second wire clamping disc are sleeved on the bearing. A groove for clamping the wire is formed between the first wire clamping disc and the second wire clamping disc. The groove can be adjusted according to the tightness between the first wire clamping disc and the second wire clamping disc. A conical spring is also sleeved on the bearing. One end of the conical spring abuts against the first wire clamping disc, and the other end is inserted into the deep groove on the bearing. The adjusting cap is sleeved on the end of the bearing, so that the user can squeeze the conical spring by adjusting the position of the adjusting cap on the bearing, and then squeeze the first wire clamping disc and the second wire clamping disc through the conical spring, thereby adjusting the groove for clamping the wire.

[0053] In further embodiments of the present invention, there is no special limitation on the form of the thread clamp 3. Any thread clamping structure well-known to those skilled in the art that can achieve the thread clamping function and adjust the tightness of the clamped thread can be used. Those skilled in the art can replace the thread clamp 3 according to the specific application requirements.

[0054] Embodiment 2

[0055] An embodiment of the present application discloses a sewing machine.

[0056] Reference Figure 3 , including a machine head and a thread clamp assembly. The machine head includes a machine head housing 15. A thread passing member 16 for defining the sewing thread is provided on the machine head housing 15. The thread clamp assembly is connected to the machine head housing 15, so that the thread of the sewing machine also passes through the thread clamp assembly. The thread clamp 3 includes a fixing member 1, a rotating member 2 and a thread tension balancer 4. The rotating member 2 is connected to the machine head housing 15, so that the rotating member 2 can rotate on the machine head housing 15. The fixing member 1 is connected to the machine head housing 15, so that the fixing member 1 can limit the rotation range of the rotating member 2. The thread tension balancer 4 is located on the rotating member 2, so that the thread tension balancer 4 moves with the movement of the rotating member 2, thereby enabling the thread tension of the thread to have a relatively wide balance range.

[0057] The rotating member 2 includes a plate member, a bearing and a rotating shaft. One end of the rotating shaft is connected to the machine head housing 15, and the other end is sleeved with a bearing. The bearing is inserted into the plate member, so that the plate member rotates smoothly on the rotating shaft through the bearing after being stressed. The fixing member 1 includes a cross plate 6. The cross plate 6 is connected to the machine head housing 15, so that the cross plate 6 limits the rotation range of the rotating member 2. The thread tension balancer 4 is rotatably connected to the rotating member 2, so that the thread tension balancer 4 rotates with the rotation of the rotating member 2. Since the thread tension balancer 4 itself has the function of self-adjusting the thread tension, the self-adjusting range of the thread tension is further expanded through the rotating member 2.

[0058] The thread tension balancer 4 includes a balance shaft, a bearing, a thread clamping member and a thread clamping shell. One end of the balance shaft is inserted into the plate member, so that the balance shaft moves with the movement of the plate member. The other end is sleeved with a bearing. The thread clamping member is sleeved on the bearing. A groove for clamping the thread is provided on the thread clamping member. The thread clamping shell is sleeved on the bearing, and the thread clamping member is located inside the thread clamping shell. A shell groove for the thread to pass through is provided on one side of the thread clamping shell.

[0059] The machine head of the sewing machine in this embodiment is a conventional prior art, so it will not be described in detail here.

[0060] Further, in this embodiment, the fixing member 1 can also be in other forms. The fixing member 1 includes a vertical plate 5 and a horizontal plate 6. The vertical plate 5 and the horizontal plate 6 are integrally formed. The horizontal plate 6 includes a first horizontal plate 8 and a second horizontal plate 9. One end of the vertical plate 5 is connected to the first horizontal plate 8, and the other end is connected to the second horizontal plate 9. And the vertical plate 5 is arranged parallel to the rotating member 2, and the first horizontal plate 8 and the second horizontal plate 9 are both perpendicular to the rotating member 2. A part of the rotating member 2 is located between the first horizontal plate 8 and the second horizontal plate 9. When the rotating member 2 rotates, the positive rotation direction or the negative rotation direction of the rotating member 2 is restricted by the first horizontal plate 8 or the second horizontal plate 9 (taking the counterclockwise rotation direction as the positive direction and the clockwise rotation direction as the negative direction). The fixing member 1 restricts the adjustable wire tension range of the wire clamping component by restricting the rotation range of the rotating member 2, so that the wire clamping component can not only increase the adjustment range of the wire tension on the basis of the self-adjustment of the wire tension by the wire tension balancer 4, but also further select the adjustment range of the wire tension by restricting the rotation range of the rotating member 2.

[0061] Further, in this embodiment, the vertical plate 5 can also be in other forms. For example, the vertical plate 5 includes an upper vertical plate 12 and a lower vertical plate 13. Long circular holes 14 are formed on both the upper vertical plate 12 and the lower vertical plate 13. The upper vertical plate 12 is integrally formed with the first horizontal plate 8, and the lower vertical plate 13 is integrally formed with the second horizontal plate 9. The upper vertical plate 12 and the lower vertical plate 13 are connected by screws through the long circular holes 14. The long circular holes 14 enable the connection position between the upper vertical plate 12 and the lower vertical plate 13 to be adjusted. Furthermore, the distance between the first horizontal plate 8 on the upper vertical plate 12 and the second horizontal plate 9 on the lower vertical plate 13 can be adjusted and changed. And the screws and the long circular holes 14 can also adjust the angle between the upper vertical plate 12 and the lower vertical plate 13, so as to adjust the adjustment range of the horizontal plate 6 on the rotating member 2.

[0062] Further, in this embodiment, a limit adjusting member 7 is provided on the horizontal plate 6. The limit adjusting member 7 can be a screw. The screw is threadedly connected to the horizontal plate 6, so that the screw can change its position on the horizontal plate 6. Furthermore, the screw replaces the horizontal plate 6 to perform rotational limit on the rotating member 2. By adjusting the connection tightness between the limit adjusting member 7 and the horizontal plate 6, the rotation range of the rotating member 2 is adjusted, and thus the adjustment range of the wire tension is adjusted.

[0063] Further, in this embodiment, the wire clamping component further includes a wire clamp 3. The wire clamp 3 can be either arranged on the headstock housing 15 or connected to the headstock housing 15 by being coaxially arranged with the rotating member 2. The wire clamp 3 can also be arranged near the axis of the rotating member 2 to reduce the moving effect of the wire clamp 3, thereby realizing the situation where the position of the wire clamp 3 is fixed. The wire clamp 3 includes a mounting shaft, a first wire clamping disc, a second wire clamping disc, and an adjusting cap. The mounting shaft is inserted into the inner wall of the bearing, so that the position of the wire clamp 3 is fixed and will not rotate with the rotation of the plate member. A deep groove is formed at the part of the mounting shaft away from the bearing. Both the first wire clamping disc and the second wire clamping disc are sleeved on the bearing. A groove for wire clamping is formed between the first wire clamping disc and the second wire clamping disc. The groove can be adjusted according to the tightness between the first wire clamping disc and the second wire clamping disc. A conical spring is also sleeved on the bearing. One end of the conical spring abuts against the first wire clamping disc, and the other end is inserted into the deep groove on the bearing. The adjusting cap is sleeved on the end of the bearing, so that the user can squeeze the conical spring by adjusting the position of the adjusting cap on the bearing, and then squeeze the first wire clamping disc and the second wire clamping disc through the conical spring to adjust the groove for wire clamping.

[0064] Further, in this embodiment, there is no special limitation on the form of the wire clamp 3. Any wire clamping structure well-known to those skilled in the art that can achieve the wire clamping function and adjust the wire clamping tightness can be used. Those skilled in the art can replace the wire clamp 3 according to the specific application requirements.

[0065] Further, in this embodiment, there is no special limitation on the form of the limit adjusting member 7. Any form well-known to those skilled in the art that can realize the adjustment of the rotation range of the rotating member 2 through the arrangement of the limit adjusting member 7 on the cross plate 6 can be used. Those skilled in the art can replace the form of the limit adjusting member 7 according to the specific application requirements; the limit adjusting member 7 can be a plug member, a sliding member, or other forms that can limit the rotation of the rotating member 2.

[0066] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A wire clamp assembly, characterized in that: The invention comprises a fixing member (1) for connecting with a machine head housing (15), a rotating member (2) for connecting with the machine head housing (15), and a line tension balancer (4), so that the fixing member (1) limits the rotation range of the rotating member (2), the line tension balancer (4) is connected with the rotating member (2), and the line tension balancer (4) itself is rotatable, so that the line tension balancer (4) has the function of self-adjusting line tension.

2. The wire clamp assembly according to claim 1, characterized in that: It also comprises a wire clamp (3), and the wire clamp (3) is connected to either the rotating member (2) or the machine head housing (15).

3. The wire clamp assembly according to claim 1, characterized in that: The fixing member (1) comprises a transverse plate (6) for connecting with the machine head housing (15); the transverse plate (6) is arranged perpendicular to the rotating member (2); and the transverse plate (6) is used to limit the rotation range of the rotating member (2).

4. The wire clamp assembly according to claim 1, characterized in that: The fixing member (1) comprises a vertical plate (5) and a horizontal plate (6), wherein the vertical plate (5) is arranged parallel to the rotating member (2), and the horizontal plate (6) is connected to the vertical plate (5) so that the horizontal plate (6) is perpendicular to the rotating member (2), and the rotating member (2) is at least partially located between the vertical plate (5) and the horizontal plate (6).

5. The wire clamp assembly according to claim 3 or 4, characterized in that: The transverse plate (6) is provided with a limit adjustment member (7), and the limit adjustment member (7) is used to adjust the rotation range of the rotating member (2).

6. The wire clamp assembly according to claim 4, characterized in that: The transverse plate (6) comprises a first transverse plate (8) and a second transverse plate (9), the first transverse plate (8) is connected to the vertical plate (5), the second transverse plate (9) is also connected to the vertical plate (5), and the first transverse plate (8) and the second transverse plate (9) are both perpendicular to the rotating member (2), and the rotating member (2) is at least partially located between the first transverse plate (8) and the second transverse plate (9); a limit adjustment member (7) is provided on the transverse plate (6), and the limit adjustment member (7) comprises a first limit adjustment member (10) and a second limit adjustment member (11), the first limit adjustment member (10) is connected to the first transverse plate (8), and the second limit adjustment member (11) is connected to the second transverse plate (9).

7. The wire clamp assembly according to claim 5, characterized in that: The limit adjustment member (7) is a screw, and the screw is connected to the transverse plate (6), so that the user can adjust the limit degree of the screw on the rotating member (2) by adjusting the connection degree between the screw and the transverse plate (6).

8. The wire clamp assembly according to claim 4, characterized in that: The vertical plate (5) comprises an upper vertical plate (12) and a lower vertical plate (13), and oblong holes (14) are provided on the upper vertical plate (12) and the lower vertical plate (13), and the upper vertical plate (12) and the lower vertical plate (13) are connected through the oblong holes (14); the horizontal plate (6) comprises a first horizontal plate (8) and a second horizontal plate (9), and the first horizontal plate (8) is connected to the upper vertical plate (12), and the second horizontal plate (9) is also connected to the lower vertical plate (13), and the first horizontal plate (8) and the second horizontal plate (9) are both perpendicular to the rotating member (2), and the rotating member (2) is at least partially located between the first horizontal plate (8) and the second horizontal plate (9), so that a user can adjust the connection space and connection angle between the upper vertical plate (12) and the lower vertical plate (13) through the oblong holes (14) to adjust the degree of limitation of the horizontal plate (6) on the rotating member (2).

9. The wire clamp assembly according to claim 8, characterized in that: The transverse plate (6) is provided with a limit adjustment member (7), and the limit adjustment member (7) comprises a first limit adjustment member (10) and a second limit adjustment member (11), the first limit adjustment member (10) is connected to the first transverse plate (8), and the second limit adjustment member (11) is connected to the second transverse plate (9).

10. A sewing machine, characterized in that: It comprises a machine head and a wire clamp assembly as described in any one of claims 1 to 9, wherein the machine head is connected to the wire clamp assembly.

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