Thread stabilizing structure and sewing machine

Abstract

The utility model discloses a thread stabilizing structure and a sewing machine, and relates to the technical field of sewing machines. The thread stabilizing plate is arranged on the side face of the sewing machine body, and a thread guiding plate set is arranged on the side face of the thread stabilizing plate and used for guiding sewing threads; the thread stabilizing strip is arranged on the side face of the sewing machine body and arranged on one side of the thread stabilizing plate, and the thread stabilizing strip is used for spirally winding a sewing thread. According to the thread stabilizing structure, the technical problem that when an existing thread stabilizing device of the sewing machine is used, a sewing thread shakes greatly due to suspension in the conveying process, and consequently the thread breaking probability is increased is solved, the advancing track of the sewing thread is preliminarily limited through the thread stabilizing plate, shaking of the sewing thread is eliminated, and meanwhile the thread stabilizing strip is arranged below the thread stabilizing plate; the sewing thread is spirally wound on the outer side wall of the thread stabilizing strip in the advancing process and is stabilized on the surface of the thread stabilizing strip, shaking of the sewing thread is further eliminated, the probability of thread breaking is reduced, and the sewing quality of the sewing machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to a thread-stabilizing structure and a 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, allowing one or more layers of fabric to interweave or sew together. Currently, when forming lockstitch, the sewing machine's take-up lever moves up and down to let out and take in the thread. This back-and-forth movement of the take-up lever causes the thread to wobble and vibrate, which is transmitted along the thread to the needle, affecting the needle's stability. More noticeably, during machine operation, the wobbling thread can be punctured by the needle, causing it to break. Existing technology discloses a thread-stabilizing device for a sewing machine, comprising a left thread hook fixed to the sewing machine head or housing and located between the take-up lever and the needle. A left thread hook cover is fixed to the left thread hook, and the left thread hook cover has a mounting cavity containing a buffer stabilizer. A thread passage hole is formed between the buffer stabilizer and the inner wall of the left thread hook. The suture passes through the thread pass-through hole between the cushioning stabilizer and the inner wall of the left suture hook, eliminating suture wobbling and reducing the chance of suture breakage.

[0003] However, in actual use, the thread-stabilizing device of the aforementioned sewing machine still experiences significant vibration during the thread feeding process due to suspension, increasing the likelihood of thread breakage. Therefore, a thread-stabilizing structure and sewing machine designed to solve the above problems are proposed. Utility Model Content

[0004] The purpose of this invention is to provide a thread-stabilizing structure and a sewing machine, which solves the technical problem that when the thread stabilizing device of an existing sewing machine is in use, the thread will vibrate significantly due to being suspended in the air during the feeding process, which increases the probability of thread breakage.

[0005] To achieve the above objectives, this utility model provides a stabilizing structure, comprising:

[0006] Sewing machine body;

[0007] A thread stabilizer is provided on the side of the sewing machine body, and a guide plate assembly is provided on the side of the thread stabilizer for guiding the sewing thread.

[0008] A stabilizing line is disposed on one side of the stabilizing plate, and the stabilizing line is used to spirally wrap the stitch.

[0009] Preferably, the conductor plate assembly includes: a first conductor plate and a second conductor plate disposed on one side of the stabilizing plate, wherein the sides of the first conductor plate and the second conductor plate are each provided with a first thread hole for passing through the sewing thread.

[0010] Preferably, the two ends of the first thread hole are rounded.

[0011] Preferably, both the first guide plate and the second guide plate are provided with limiting slots on their sides, and the limiting slots are used to engage and connect the stabilizing line.

[0012] Preferably, the stabilizing line is cylindrical in shape.

[0013] Preferably, the thread stabilizer includes an integrally formed snap-fit ​​part and a guide part. The snap-fit ​​part is connected to the sewing machine body, and the guide part is located between the first guide plate and the second guide plate. The guide part is used for spirally winding the thread.

[0014] Preferably, the first end of the snap-fit ​​portion is fixedly connected to the sewing machine body, and the second end of the snap-fit ​​portion extends in a direction away from the sewing machine body.

[0015] Preferably, the two ends of the stabilizing plate are integrally provided with a bent portion, and the bent portion is provided with a second thread hole for the thread to pass through.

[0016] Preferably, the side of the sewing machine body is provided with a plurality of screw holes, and the side of the thread stabilizer plate is provided with a through hole, through which screws are threaded to the screw holes.

[0017] A sewing machine comprising the thread-stabilizing structure described in any of the preceding claims.

[0018] Compared with the aforementioned background technology, the thread stabilizing structure provided by this utility model has the following beneficial effects: the thread stabilizing plate initially limits the travel trajectory of the sewing thread, eliminating the shaking of the sewing thread and ensuring stable travel of the sewing thread during the conveying process. At the same time, a stabilizing line is set below the thread stabilizing plate. During the travel of the sewing thread, it spirally wraps around the outer wall of the stabilizing line, limiting the travel trajectory of the sewing thread during the conveying process and stabilizing it on the surface of the stabilizing line. The sewing thread no longer experiences large-scale shaking due to being suspended in the air during the conveying process, effectively reducing the probability of thread breakage and improving sewing performance and sewing quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is an assembly diagram of the stabilizing structure provided in an embodiment of the present utility model;

[0021] Figure 2 A three-dimensional structural diagram of the stabilizing plate provided in an embodiment of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the stable lines provided in the embodiment of this utility model.

[0023] Specifically, 1-sewing machine body; 2-thread stabilizer plate; 201-bending part; 202-second thread hole; 3-guide plate assembly; 301-first guide plate; 302-second guide plate; 303-first thread hole; 304-limiting slot; 4-stabilizing thread; 401-clamping part; 402-guide part; 5-sewing thread. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 and Figure 2 As shown, in order to achieve the above objectives, this utility model provides a thread stabilizing structure, including: a sewing machine body 1 and a thread stabilizing plate 2 and a thread stabilizing line 4 disposed on the sewing machine body 1. The overall thread stabilizing structure can be composed only of the thread stabilizing plate 2 and the thread stabilizing line 4, without the need for a complicated assembly process, and the manufacturing cost is low.

[0027] The thread stabilizer 2 is located on the side of the sewing machine body 1. A guide plate group 3 is provided on the side of the thread stabilizer 2. The guide plate group 3 is used to guide the sewing thread 5. Specifically, the left end of the thread stabilizer 2 serves as the entry end of the sewing thread 5, and the right end of the thread stabilizer 2 serves as the exit end of the sewing thread 5. When the sewing thread 5 passes through the thread stabilizer 2, the guide plate group 3 will limit the sewing thread 5 to a certain extent, so that it can travel roughly in the length direction of the thread stabilizer 2, initially limiting the travel trajectory of the sewing thread 5, eliminating the shaking of the sewing thread 5, and keeping the sewing thread 5 moving stably during the conveying process.

[0028] The stabilizing line 4 is located on the side of the sewing machine body 1 and on one side of the stabilizing plate 2. The length direction of the stabilizing line 4 is roughly consistent with the original travel trajectory of the sewing thread 5. The stabilizing line 4 is used to spirally wind the sewing thread 5. As the sewing thread 5 spirally winds around the outer wall of the stabilizing line 4 during its travel, it further limits the travel trajectory of the sewing thread 5 during the conveying process. This ensures that the sewing thread 5 remains stable on the surface of the stabilizing line 4 while traveling along its original trajectory. The sewing thread 5 no longer experiences significant shaking due to being suspended in the air during the conveying process, reducing the probability of thread breakage and improving the stability of the sewing thread 5.

[0029] In use, the thread stabilizer 2 is fixed to the side of the sewing machine body 1, and the thread stabilizer 4 is fixed to one side of the thread stabilizer 2 according to the travel trajectory of the thread 5. The thread 5, which is led out from the thread holder, first enters the thread stabilizer 2 from the left end. The thread 5 is wound clockwise or counterclockwise around the thread stabilizer 4, and the thread 5 travels from the left end to the right end of the thread stabilizer 4. The thread 5 does not touch each other at each length position. The combination of the thread stabilizer 2 and the thread stabilizer 4 further improves the stability of the thread 5, further eliminates the shaking of the thread 5, reduces the probability of thread breakage, and improves sewing performance and sewing quality.

[0030] In one embodiment of this utility model, the stabilizing plate 2 is C-shaped, which can provide a certain installation space for the stabilizing line 4 and facilitate the arrangement of the stabilizing line 4. The stabilizing line 4 is set at the concave position of the stabilizing plate 2 to ensure that the length direction of the stabilizing line 4 is as consistent as possible with the original stitch 5 travel trajectory.

[0031] The guide plate assembly 3 includes a first guide plate 301 and a second guide plate 302 disposed on one side of the thread stabilizer plate 2. Specifically, the first guide plate 301 and the second guide plate 302 are disposed on the side away from the sewing machine body 1, with the first guide plate 301 located at the left end of the thread stabilizer plate 2 and the second guide plate 302 located at the right end of the thread stabilizer plate 2. The sides of the first guide plate 301 and the second guide plate 302 are each provided with a first thread hole 303 for the sewing thread 5 to pass through. The original travel trajectory of the sewing thread 5 is from the first thread hole 303 on the first guide plate 301 to the first thread hole 303 on the second guide plate 302. Through the cooperation of the first guide plate 301 and the second guide plate 302, the travel trajectory of the sewing thread 5 is initially defined, and the shaking of the sewing thread 5 is eliminated.

[0032] It should be noted that both the first conductor plate 301 and the second conductor plate 302 are L-shaped. The bottom surfaces of the first conductor plate 301 and the second conductor plate 302 are connected to the side of the stabilizing plate 2 by welding. Alternatively, the first conductor plate 301 and the second conductor plate 302 can be connected to the side of the stabilizing plate 2 by riveting, or the first conductor plate 301 and the second conductor plate 302 can be directly integrated into the side of the stabilizing plate 2. There is no limitation on the connection method between the first conductor plate 301, the second conductor plate 302 and the stabilizing plate 2. The purpose is to ensure that the first conductor plate 301 and the second conductor plate 302 can be stably fixed on the stabilizing plate 2.

[0033] Preferably, rounded corners are provided at both ends of the first thread hole 303. The rounded corners can reduce the cutting force on the thread 5 at the end of the first thread hole 303, prevent the thread 5 from breaking due to excessive local stress, and protect the thread 5.

[0034] In one embodiment of this utility model, both the first guide plate 301 and the second guide plate 302 are provided with limiting grooves 304 on their sides. The limiting grooves 304 are used to engage and connect the stabilizing thread 4. Specifically, the opening of the limiting groove 304 faces downward, and the left end of the stabilizing thread 4 can be engaged into the limiting groove 304, thereby providing a certain fixing effect on the stabilizing thread 4 and preventing the sewing thread 5 from deviating from its original trajectory during travel, thus ensuring the stability of the sewing thread 5 during the conveying process.

[0035] Preferably, the stabilizing line 4 is cylindrical in shape. The cylindrical shape of the stabilizing line 4 can minimize the friction between the stitch 5 and the stabilizing line 4, allowing the stitch 5 wound around the stabilizing line 4 to travel more smoothly. Alternatively, a spiral guide strip (not shown in the figure) can be selected. The spiral guide strip protrudes evenly from the outer periphery of the stabilizing line 4, and the stitch 5 travels along the extension direction of the spiral guide strip on the stabilizing line 4, serving to guide the stitch 5.

[0036] Of course, a spiral guide groove (not shown in the figure) can also be selected. The spiral guide groove is set in the same way as the spiral guide strip. The spiral guide groove is evenly recessed on the outer side of the stabilizing line 4. The sewing line 5 travels along the extension direction of the spiral guide groove inside the spiral guide groove, which plays the role of guiding the sewing line 5.

[0037] like Figure 3 As shown, the thread stabilizer 4 includes an integrally formed snap-fit ​​part 401 and a guide part 402. The snap-fit ​​part 401 is connected to the sewing machine body 1, and the guide part 402 is located between the first guide plate 301 and the second guide plate 302. The guide part 402 is used for spirally winding the sewing thread 5. Specifically, the snap-fit ​​part 401 is set in a circular shape at the connection position with the sewing machine body 1. The sewing machine body 1 is connected by a screw through the thread of the circular ring, which can fix the snap-fit ​​part 401 to the sewing machine body 1.

[0038] Preferably, the stabilizing thread 4 is made of an elastic material. When the guide part 402 is moved up and down, the guide part 402 can spring back up and down and eventually return to its initial position. After the locking part 401 is fixed to the sewing machine body 1, the left end of the guide part 402 will push upward against the limiting groove 304, further ensuring that the guide part 402 will not easily come out of the limiting groove 304, improving the limiting and fixing effect on the overall stabilizing thread 4, and further ensuring the stability of the sewing thread 5 during the feeding process.

[0039] It should be noted that the left end of the locking part 401 is fixedly connected to the sewing machine body 1, the right end of the locking part 401 extends away from the sewing machine body 1, and the right end of the guide part 402 is integrally connected to the right end of the locking part 401, so as to ensure that the guide part 402 is set on the outside of the thread stabilizer plate 2, and the sewing thread 5 led out from the first thread hole 303 on the first guide plate 301 can move smoothly to the guide part 402, and the sewing thread 5 of the guide part 402 can move smoothly to the first thread hole 303 on the second guide plate 302, so as to ensure the smoothness of the sewing thread 5 during the feeding process.

[0040] In addition, the two ends of the stabilizing plate 2 are integrally provided with bent portions 201. The bent portions 201 are provided with second thread holes 202 for the thread 5 to pass through. The second thread holes 202 are used to assist in guiding the path of the thread 5. Similar to the structure of the first thread hole 303, the two ends of the second thread hole 202 are provided with rounded corners to reduce the cutting force on the thread 5 at the end position of the second thread hole 202, prevent the thread 5 from breaking due to excessive local stress, and play a role in protecting the thread 5.

[0041] In one embodiment of this utility model, a plurality of screw holes are provided on the side of the sewing machine body 1, and a through hole is provided on the side of the thread stabilizer plate 2. Screws pass through the through hole and are threadedly connected to the screw holes to fix the thread stabilizer plate 2 to the side of the sewing machine body 1. Depending on actual usage requirements, multiple sets of screw holes may be provided on the side of the sewing machine body 1. Each set of screw holes can stably connect to the thread stabilizer plate 2. The position of the thread stabilizer plate 2 on the sewing machine body 1 can be adjusted according to the position of the thread holder, the size and structure of the sewing machine body 1, and the thread entry point of the sewing thread 5 in the next process position. Simultaneously, the position and angle of the thread stabilizer line 4 can be adjusted to ensure that the overall thread stabilizer structure can flexibly adjust its structural state according to requirements, expanding its applicability.

[0042] The working principle of this utility model is as follows: The thread stabilizer plate 2 is fixed on the side of the sewing machine body 1. The thread stabilizer 4 is fixed on one side of the thread stabilizer plate 2 according to the travel trajectory of the sewing thread 5. The sewing thread 5 led out from the thread holder passes through the second thread hole 202 at the left end of the thread stabilizer plate 2 and enters the first thread hole 303 on the first guide plate 301. After passing through the first thread hole 303, the sewing thread 5 is further spirally wound on the thread stabilizer 4 in a clockwise direction. The sewing thread 5 travels from the left end of the guide part 402 to the right end of the guide part 402. Then, the sewing thread 5 travels from the right end of the guide part 402 to the first thread hole 303 on the second guide plate 302 in sequence. Finally, it is led out from the second thread hole 202 at the right end of the thread stabilizer plate 2 and enters the next process position.

[0043] In addition to the thread-stabilizing structure described above, this utility model also provides a sewing machine that includes the thread-stabilizing structure disclosed in the above embodiments. For the structure of other parts of the sewing machine, please refer to the prior art, which will not be repeated here.

[0044] In summary, by using the stabilizing plate 2 to initially limit the travel trajectory of the sewing thread 5 and eliminate the shaking of the sewing thread 5, and by setting a stabilizing line 4 below the stabilizing plate 2, the sewing thread 5 spirals around the outer wall of the stabilizing line 4 during its travel, stabilizing it on the surface of the stabilizing line 4, further eliminating the shaking of the sewing thread 5, effectively reducing the probability of thread breakage, and improving the sewing quality of the sewing machine.

[0045] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0046] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A linear stabilization structure, characterized in that, include: Sewing machine body; A thread stabilizer is provided on the side of the sewing machine body, and a guide plate assembly is provided on the side of the thread stabilizer for guiding the sewing thread. A stabilizing line is disposed on one side of the stabilizing plate, and the stabilizing line is used to spirally wrap the stitch.

2. The stabilizing structure according to claim 1, characterized in that, The guide plate assembly includes: a first guide plate and a second guide plate disposed on one side of the stabilizing plate, wherein the sides of the first guide plate and the second guide plate are provided with a first thread hole for passing through the sewing thread.

3. The stabilizing structure according to claim 2, characterized in that, The two ends of the first thread hole are rounded.

4. The stabilizing structure according to claim 2, characterized in that, Both the first guide plate and the second guide plate are provided with limit slots on their sides, which are used to engage and connect the stabilizing line.

5. A stabilizing structure according to claim 2, characterized in that, The stabilizing line is cylindrical in shape.

6. A stabilizing structure according to claim 5, characterized in that, The thread stabilizer includes an integrally formed snap-fit ​​part and a guide part. The snap-fit ​​part is connected to the sewing machine body, and the guide part is located between the first guide plate and the second guide plate. The guide part is used for spirally winding the thread.

7. A stabilizing structure according to claim 6, characterized in that, The first end of the snap-fit ​​part is fixedly connected to the sewing machine body, and the second end of the snap-fit ​​part extends in a direction away from the sewing machine body.

8. A stabilizing structure according to any one of claims 1-7, characterized in that, The two ends of the stabilizing plate are integrally provided with bent portions, and the bent portions are provided with second thread holes for the sewing thread to pass through.

9. A stabilizing structure according to claim 8, characterized in that, The sewing machine body has several screw holes on its side, and the thread stabilizer plate has a through hole on its side. Screws pass through the through hole and are threaded into the screw holes.

10. A sewing machine, characterized in that, The stabilizing structure includes any one of claims 1-9 above.

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