Sewing equipment for loudspeaker

Abstract

The sewing equipment comprises a sewing machine body, the sewing machine body comprises a machine needle and a presser foot, the sewing equipment further comprises a U-shaped workbench and a thread adjusting mechanism, the U-shaped workbench is used for bearing and fixing a voice coil damper assembly of the loudspeaker, and the voice coil damper assembly comprises a voice coil, a damper and a brocade silk thread; the presser foot is used for pressing down and fixing the damper on the U-shaped workbench; the thread adjusting mechanism comprises a thread adjusting rod, and the thread adjusting rod is used for upwards lifting the first section of the brocade silk thread; the machine needle is used for connecting preset connecting points of the brocade silk threads to the damper in a sewing mode, and the first section of each brocade silk thread protrudes upwards by a radian after sewing is completed. According to the invention, the brocade silk threads of the voice coil can be sewed and connected to the damper, so that the routing problem of the brocade silk threads is solved; the length of the brocade silk threads can be controlled, and the radian consistency of the brocade silk threads is controlled.

Description

Technical Field

[0001] This application relates to the technical field of speaker manufacturing, and particularly to a sewing device for speakers. Background Art

[0002] Speakers are assembled in home TVs, multimedia home audio systems, outdoor speakers, cars, KTV venues, square broadcasts, computers, etc., and their function is to serve as the sound generating unit.

[0003] Currently, in the speaker industry, there is a process for connecting the voice coil wire, that is, the voice coil comes with a brocade wire that is directly welded to the terminal of the speaker. The advantage of this process is that it can not only meet the structural limitations of the speaker but also meet the space limitations between the speaker's spider / diaphragm, providing better performance requirements for the speaker. However, there is also a drawback. When the distance between the voice coil wire outlet and the terminal port is relatively far, the travel of the brocade wire is relatively long at this time. Under the state of high-power vibration, it is extremely easy for the brocade wire to hit the diaphragm or the spider, resulting in the wire hitting problem that cannot be completely cured in the speaker industry and is extremely troublesome. Utility Model Content

[0004] The main technical problem to be solved by this application is to provide a sewing device for speakers, which is used to sew and connect the brocade wire to the spider, thereby avoiding the wire hitting problem of the brocade wire.

[0005] A sewing device for speakers proposed by this application includes a sewing machine body. The sewing machine body includes a sewing needle and a presser foot. The sewing device further includes a U-shaped workbench and a wire adjusting mechanism, where:

[0006] The U-shaped workbench is used to carry and fix the voice coil and spider assembly of the speaker. The voice coil and spider assembly includes a voice coil, a spider, and a brocade wire;

[0007] The presser foot is used to press down and fix the spider on the U-shaped workbench, so that the brocade wire passes through the middle of the presser foot, so that the preset connection point of the brocade wire is located below the sewing needle;

[0008] The wire adjusting mechanism includes a wire adjusting rod located above the U-shaped workbench. The wire adjusting rod is used to lift the first section of the brocade wire upward. The first section refers to the part of the brocade wire between the preset connection point and the voice coil;

[0009] The sewing needle is used to sew and connect the preset connection point of the brocade wire to the spider. After sewing is completed, the first section of the brocade wire bulges upward in an arc.

[0010] In some alternative embodiments, the sewing device further includes: a laser locator disposed above the U-shaped workbench for emitting a positioning light spot onto the voice coil bobbin, and the positioning light spot is used to indicate the position where the sewing needle penetrates downward.

[0011] In some alternative embodiments, the sewing device further includes: a guiding mechanism disposed on the U-shaped workbench and behind the presser foot for defining the position of the brocade silk thread.

[0012] In some alternative embodiments, the U-shaped workbench has a U-shaped opening, and the voice coil can be embedded into the U-shaped opening.

[0013] In some alternative embodiments, the position of the thread adjusting rod is adjustable.

[0014] In some alternative embodiments, the thread adjusting mechanism further includes a connecting rod, and the thread adjusting rod is mounted on the connecting rod in a position-adjustable manner.

[0015] In some alternative embodiments, the thread adjusting mechanism further includes a cylinder, the cylinder is connected to the connecting rod, and the cylinder is used to drive the thread adjusting rod to move through the connecting rod, so that the thread adjusting rod extends above the U-shaped workbench or moves away from the U-shaped workbench.

[0016] In some alternative embodiments, the connecting rod includes a first connecting rod connected to the cylinder and a second connecting rod connected to the first connecting rod. Wherein, a transverse first long hole is formed in the first connecting rod, and the second connecting rod is connected to the first long hole through a bolt, so that the transverse phase position of the second connecting rod and the first connecting rod is adjustable; a vertical second long hole is formed in the second connecting rod, and the thread adjusting rod is connected to the second long hole through a bolt, so that the vertical relative position of the thread adjusting rod and the second connecting rod is adjustable.

[0017] In some alternative embodiments, the thread adjusting rod is parallel to the U-shaped workbench.

[0018] In some alternative embodiments, the thread adjusting rod is perpendicular to the brocade silk thread.

[0019] In some alternative embodiments, the diameter of the thread adjusting rod is larger than that of the brocade silk thread.

[0020] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0021] The present application proposes a sewing device for a loudspeaker, which can carry and fix a voice coil and elastic wave assembly by setting a U-shaped workbench, and cooperate with the machine needle and presser foot of the loudspeaker to sew the silk thread of the voice coil to the elastic wave, thereby solving the problem of the silk thread being tied. Furthermore, the sewing device can set a thread adjusting mechanism, and use a thread adjusting rod to lift a section of the silk thread upward to present a certain curvature, so as to control the length of the silk thread, control the curvature consistency of the silk thread, and prevent the occurrence of the problem of the silk thread being tied. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments and the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 is a schematic diagram of the longitudinal cross-sectional structure of a sewing device for a loudspeaker according to an embodiment of the present application;

[0024] Figure 2 is a partial stereoscopic diagram of a sewing device for a loudspeaker according to an embodiment of the present application;

[0025] Figure 3 is another partial stereoscopic view of the sewing device for the speaker according to the embodiment of the present application;

[0026] Figure 4 This is another partial stereoscopic view of the sewing equipment for the speaker according to the embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] In the description, claims and the above drawings of this application, the terms "first", "second", "third", etc. are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products or devices.

[0029] The following will be described in detail through specific embodiments respectively.

[0030] A sewing machine uses one or more sewing threads to form one or more stitch types on the sewing material, so as to interweave or stitch together one or more layers of sewing materials. A sewing machine is composed of components such as a machine head, a sewing bed, and a base, for example. A sewing machine can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, as well as products such as leather, plastic, and paper. The stitches sewn are neat, beautiful, flat and firm. The sewing speed is fast, and it is easy to use, and art forms such as hand embroidery and computer embroidery are derived therefrom.

[0031] In order to realize sewing and connecting the brocade silk thread to the damper in the assembly process of the speaker, an embodiment of this application proposes a sewing device for a speaker. This sewing device belongs to a type of sewing machine. Through improvement, it can be used for fixing the damper and the brocade silk thread stitches of important components of the speaker, and meet the sewing connection between the speaker damper and the brocade silk thread. The embodiment of this application can be used to break through the difficulty that the process of connecting the brocade silk thread to the damper in the speaker industry cannot be mass-produced, can realize the large-scale mass production of sewing and connecting the brocade silk thread to the damper, and can solve the problem of threading the brocade silk thread in the industry.

[0032] Reference Figures 1 to 4 , shows the sewing device for a speaker according to an embodiment of this application. As Figure 1 shown, the sewing device according to the embodiment of this application includes a sewing machine body and a retrofit accessory. The sewing machine body is a type of conventional sewing machine, and includes components such as a sewing needle 101 and a presser foot 102. In the embodiment of this application, the retrofit accessory includes a U-shaped workbench 201 and a thread adjusting mechanism 202.

[0033] Here, the U-shaped workbench 201 is used to carry and fix the voice coil damper assembly 300 of the speaker. The voice coil damper assembly 300 includes a voice coil 301, a damper 302, and a brocade silk thread 303 (see Figure 4) Exemplarily, the voice coil 301 includes a voice coil bobbin and a voice coil wire wound around the voice coil bobbin. The spider is annular, and the inner side of the spider 302 is bonded to the voice coil 301. The brocade silk thread 303 is a wire for transmitting an electrical signal. One section of the brocade silk thread 303 is connected to the voice coil wire, and the other end is a free end, which is subsequently used to be welded to the terminal of the speaker.

[0034] Here, the presser foot 102 is used to press down and fix the spider on the U-shaped workbench, so that the brocade silk thread 303 passes through the middle of the presser foot, so that the preset connection point of the brocade silk thread 303 is located below the sewing needle 101;

[0035] Here, the wire adjusting mechanism 202 includes a wire adjusting rod 2021 located above the U-shaped workbench 201. The wire adjusting rod 2021 is used to lift the first section of the brocade silk thread 303 upward. The first section refers to the part of the brocade silk thread 303 between the preset connection point and the voice coil; the sewing needle 101 is used to sew and connect the preset connection point of the brocade silk thread 303 to the spider. After sewing, the first section of the brocade silk thread 303 bulges upward in an arc.

[0036] In the embodiment of the present application, the U-shaped workbench 201 is mainly used to fix the voice coil spider assembly. The wire adjusting mechanism 202 is mainly used to ensure the consistency of the arc of the first section of the brocade silk thread when sewing the spider and the brocade silk thread 303. The presser foot 102 is mainly used to fix the spider to ensure that there is no movement during sewing. The sewing needle 101 is mainly used to drive the sewing thread to complete the sewing connection of the brocade silk thread 303 to the spider.

[0037] In some alternative embodiments, the sewing device further includes: a laser locator 203, which is arranged above the U-shaped workbench 201 and is used to emit a positioning light spot onto the spider. The positioning light spot is used to indicate the position where the sewing needle 101 penetrates. Exemplarily, the laser locator 203 can be an infrared laser locator, which is mainly used to fix the sewing position of the brocade silk thread 303.

[0038] In some alternative embodiments, the sewing device further includes: a guiding mechanism 204, which is arranged on the U-shaped workbench 201 and is located behind the presser foot 102, and is used to limit the position of the brocade silk thread 303.

[0039] In some alternative embodiments, the U-shaped workbench 201 has a U-shaped opening 2011, and the voice coil can be embedded in the U-shaped opening.

[0040] In some alternative embodiments, the position of the wire adjusting rod 2021 is adjustable.

[0041] In some alternative embodiments, the wire adjusting mechanism 202 further includes a connecting rod, and the wire adjusting rod 2021 is installed on the connecting rod in a position-adjustable manner.

[0042] In some alternative embodiments, the thread adjusting mechanism 202 further includes a cylinder 2022. The cylinder 2022 is connected to a connecting rod, and the cylinder 2022 is configured to drive the thread adjusting rod 2021 to move through the connecting rod, so that the thread adjusting rod 2021 extends above the U-shaped workbench 201 (see Figure 2 ) or away from the U-shaped workbench 201 (see Figure 3 ).

[0043] In some alternative embodiments, the connecting rod includes a first connecting rod 2023 connected to the cylinder 2022 and a second connecting rod 2024 connected to the first connecting rod 2023. Wherein, a transverse first long hole is formed in the first connecting rod 2023, and the second connecting rod 2024 is connected to the first long hole by bolts, so that the transverse phase positions of the second connecting rod 2024 and the first connecting rod 2021 are adjustable; a vertical second long hole is formed in the second connecting rod 2024, and the thread adjusting rod 2021 is connected to the second long hole by bolts, so that the vertical relative positions of the thread adjusting rod 2021 and the second connecting rod 2024 are adjustable.

[0044] In some alternative embodiments, the thread adjusting rod 2021 is parallel to the U-shaped workbench 201.

[0045] In some alternative embodiments, the thread adjusting rod 2021 is perpendicular to the brocade silk thread.

[0046] In some alternative embodiments, the thread adjusting mechanism may be a four-link cylinder thread adjusting jig.

[0047] In some alternative embodiments, the sewing machine body further includes the following components: a stitch pitch adjusting valve 104, a thread clamp 105, a sewing machine thread wheel 106, a motor 107, an adjusting key 108, a base 109, and a machine table 1010. Among them, the stitch pitch adjusting valve 104 is mainly used to adjust the distance between two holes of the sewing thread; the thread clamp 105 is mainly a metal clip for fixing the sewing thread, which can prevent the sewing thread from being brittle and breaking; the sewing machine thread wheel 106 is mainly used to place the sewing thread coil; the motor 107 is mainly an important component that provides power for the sewing machine, which drives the thread wheel and makes the needle part move up and down; the adjusting key 108 is mainly used to control the program adjustment and mode selection of the sewing machine; the base 109 is mainly the main part of the sewing machine, which bears the working load of the entire sewing machine; the machine table 1010 is mainly used to bear the weight of the entire sewing machine and keep it stable. It should be understood that the above descriptions of the components of the sewing machine body are only examples, and the structure and composition of the sewing machine body in this application are not limited.

[0048] The working principle of the sewing equipment in the embodiment of the present application is to achieve the function of sewing by using a mechanical device, a transmission device and a related control device, which work in coordination with each other, and use the needle and thread to interweave with each other to form continuous stitches on the fabric. Its operating steps may include: after power is turned on, the motor 107 drives the internal structure of the base 109 through the control of the adjustment key 108 to realize the needle 101 piercing up and down on the elastic wave to complete the sewing; optionally, the up and down movement of the presser foot 102 can be controlled by a foot pedal.

[0049] The sewing device of the embodiment of the present application can achieve the effect of sewing the silk thread of the voice coil to the elastic wave by adding a U-shaped workbench 201 and a thread adjusting mechanism 202 (a guide mechanism 204 and / or a laser locator 203 can also be added) to the sewing machine body, so as to solve the problem of silk thread binding that cannot be completely cured in the speaker industry, achieve the effect of curing the disease with one medicine, and greatly improve the straight-through rate of the product; and can meet the needs of voice coil elastic wave components of different sizes to improve versatility.

[0050] The sewing equipment of the embodiment of the present application can use the thread adjusting rod to lift a section of the silk thread upward to present a certain curvature, so as to control the length of the silk thread, control the curvature consistency of the silk thread, and prevent the occurrence of the silk thread thread jamming problem.

[0051] In the above, the technical solution of the present application is described in detail through specific embodiments. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0052] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. A person skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewing device for a speaker, comprising a sewing machine body, wherein the sewing machine body comprises a needle and a presser foot, wherein: The sewing equipment also includes a U-shaped workbench and a thread adjusting mechanism, wherein: The U-shaped workbench is used to carry and fix the voice coil and spring wave assembly of the loudspeaker, wherein the voice coil and spring wave assembly includes a voice coil, a spring wave and a silk thread; The presser foot is used to press the spring wave down and fix it on the U-shaped workbench, so that the brocade thread passes through the middle of the presser foot, so that the preset connection point of the brocade thread is located below the machine needle; The wire adjustment mechanism comprises a wire adjustment rod located above the U-shaped workbench, and the wire adjustment rod is used to lift the first section of the brocade wire upwards, wherein the first section refers to the portion between the preset connection point of the brocade wire and the voice coil; The machine needle is used to sew the preset connection point of the brocade thread to the elastic wave, and after sewing, the first section of the brocade thread bulges upward in an arc.

2. The sewing device for a speaker according to claim 1, characterized in that: The sewing equipment also includes: A laser locator is arranged above the U-shaped workbench and is used to emit a positioning light spot to the elastic wave, and the positioning light spot is used to indicate the position of the needle lowering.

3. The sewing device for a speaker according to claim 1, characterized in that: The sewing equipment also includes: The guide mechanism is arranged on the U-shaped workbench and located behind the presser foot, and is used to limit the position of the brocade thread.

4. The sewing device for a speaker according to claim 1, characterized in that: The U-shaped workbench has a U-shaped opening, and the voice coil can be embedded in the U-shaped opening.

5. The sewing device for a speaker according to claim 1, characterized in that: The position of the line adjusting rod is adjustable.

6. The sewing device for a speaker according to claim 5, characterized in that: The line adjusting mechanism further comprises a connecting rod, and the line adjusting rod is mounted on the connecting rod in a positionally adjustable manner.

7. The sewing device for a speaker according to claim 6, characterized in that: The line adjusting mechanism also includes a cylinder, which is connected to the connecting rod. The cylinder is used to drive the line adjusting rod to move through the connecting rod, so that the line adjusting rod extends above the U-shaped workbench or moves away from the U-shaped workbench.

8. The sewing device for a speaker according to claim 7, characterized in that: The connecting rod includes a first connecting rod connected to the cylinder and a second connecting rod connected to the first connecting rod, wherein a first transverse long hole is opened on the first connecting rod, and the second connecting rod is connected to the first long hole by bolts, so that the transverse phase position of the second connecting rod and the first connecting rod is adjustable; a second vertical long hole is opened on the second connecting rod, and the line adjusting rod is connected to the second long hole by bolts, so that the vertical relative position of the line adjusting rod and the second connecting rod is adjustable.

9. The sewing device for a speaker according to claim 1, characterized in that: The line adjusting rod is perpendicular to the brocade thread.

10. The sewing device for a speaker according to claim 1, characterized in that: The diameter of the wire adjusting rod is larger than that of the brocade wire.

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