High speed sweater sewing machine
Patent Information
- Application Number
- CN202522499323.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-25
AI Technical Summary
[0002]缝盘机又称圆盘缝合机,俗称套口车,是使用缝线缝合羊毛衫套口的机器,借助缝盘机可以高效、快速完成羊毛衫的衣片缝合工作,比手工缝合的效率大大提高,现有的缝盘机多由机壳、传动调节模块、针盘、挑线缝合模块和驱动电机组成,传动调节模块设置于机壳的内部后侧,由内部的传动齿轮组、调节旋钮和调节手轮组成,针盘转动设置于机壳的内部前侧,针盘由盘体以及盘体边缘均匀分布的挂衣针组成,传动调节模块可以驱动针盘转动,挑线缝合模块设置于机壳的左侧,由缝合针和挑线勾以及内部传动杆构成,传动调节模块可以通过传动杆带动缝合针和挑线勾运动,动缝合针上下运动,保挑线钩与缝合针同步动作,从而缝合羊毛衫衣片,使用时,将衣片挂在针盘表面,调整传动调节模块上的蓝色旋钮设定缝合速度,然后校准缝合针与挑线钩的相对位置,启动驱动电机后,电机通过传动调节模块驱动挑线缝合模块,缝合针与挑线钩配合完成挑线、成圈动作,同时传动调节模块驱动针盘转动,针盘带动衣片进给,将两块衣片的线圈逐一套口缝合为整体,传统的缝盘机多通过后方的连接螺栓固定在外部架体的边缘处,下方缺乏固定支撑,整个缝盘机尤其是针盘凸出外部架体之外,工人上片时也会对针盘形成一个下压的力,导致针盘及整个缝盘机会向下倾斜,如果放任不管,缝盘机在运行时产生的振动、自身的自重以及工人上片的下压力会导致固定缝盘机的连接螺栓弯曲断裂,所以工人常使用多个毛线筒叠放在一起形成的毛线筒柱支在针盘下方,从而阻挡缝盘机的下沉,由于毛线筒柱多为柔性材质,如纸质或塑料,长时间支撑后,毛线筒柱会相互挤压从而变短,为了保证缝盘机的稳定,需要不时增加毛线筒,并不断调整毛线筒柱倾斜角度,从而更好的支撑缝盘机,十分不便,为此,我们提出一种羊毛衫高速缝盘机
[0011]与现有技术相比,本实用新型的有益效果是:本羊毛衫高速缝盘机,具有以下好处:
Smart Images

Figure CN224901691U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-speed sewing machine technology, specifically a high-speed sewing machine for wool sweaters. Background Technology
[0002] A circular sewing machine, also known as a disc sewing machine or a loop sewing machine, is a machine used to sew the loops of wool sweaters. It allows for efficient and rapid sewing of sweater panels, significantly improving efficiency compared to hand sewing. Most existing circular sewing machines consist of a housing, a transmission adjustment module, a needle plate, a thread take-up sewing module, and a drive motor. The transmission adjustment module is located inside the rear of the housing and consists of an internal transmission gear set, adjustment knobs, and an adjustment handwheel. The needle plate is located inside the front of the housing and consists of a disc body and evenly distributed hanging needles along its edge. The transmission adjustment module drives the needle plate to rotate. The thread take-up module is located on the left side of the machine housing and consists of a sewing needle, a thread take-up hook, and an internal transmission rod. The transmission adjustment module can drive the sewing needle and thread take-up hook to move through the transmission rod, moving the sewing needle up and down, and ensuring that the thread take-up hook and sewing needle move synchronously, thereby sewing the wool sweater pieces. In use, hang the garment piece on the surface of the needle plate, adjust the blue knob on the transmission adjustment module to set the sewing speed, then calibrate the relative position of the sewing needle and thread take-up hook, and after starting the drive motor, the motor drives the thread take-up hook through the transmission adjustment module. The sewing module uses a sewing needle and a take-up hook to take up the thread and form loops. Simultaneously, a transmission adjustment module drives the needle plate to rotate, which in turn feeds the garment pieces, stitching the loops of two pieces together. Traditional sewing machines are often fixed to the edge of the external frame with connecting bolts at the rear, lacking proper support below. The entire machine, especially the needle plate, protrudes beyond the frame. When workers load garment pieces, they exert a downward force on the needle plate, causing it and the entire sewing machine to tilt downwards. If left unattended, this can lead to vibrations during operation and further damage. The weight and downward pressure from the worker's workpiece can cause the connecting bolts of the sewing machine to bend and break. Therefore, workers often use multiple yarn spools stacked together to form a yarn spool column to support the sewing machine under the needle plate, thus preventing the sewing machine from sinking. Since the yarn spool columns are mostly made of flexible materials, such as paper or plastic, they will squeeze each other and shorten after a long period of support. In order to ensure the stability of the sewing machine, it is necessary to add yarn spools from time to time and constantly adjust the tilt angle of the yarn spool column to better support the sewing machine, which is very inconvenient. Therefore, we propose a high-speed wool sweater sewing machine. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-speed wool sweater sewing machine with a retractable mounting mechanism. When unfolded, it can provide stable support for the bottom of the sewing machine to prevent it from sinking. When retracted, it does not affect the movement and transportation of the sewing machine, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-speed wool sweater sewing machine, comprising a mounting base and a mounting mechanism; Mounting base: The upper front side is equipped with a sewing machine housing, and the upper rear side of the mounting base is equipped with a movable clamping plate. The mounting mechanism includes support rod one, support rod two, support rod three, a limiting block, a pin, and a connecting assembly. Support rod one is rotatably connected to the rear of the lower middle part of the inner side of the mounting base. Support rod two is rotatably connected to the lower inner side of support rod one. Support rod three is slidably connected to the front inner side of support rod two. The limiting block is located at the lower middle part of the sewing machine housing. The front end of the outer surface of support rod three is in contact with the inner wall of the limiting block. The pin is inserted into the inner side of the limiting block, and the middle part of the outer surface of the pin is inserted into the front end of the inner side of support rod three, providing retractable and stable support for the sewing machine. The connecting assembly is located at the lower end of the mounting base and has a retractable mounting mechanism. When unfolded, it can provide stable support for the sewing machine below, preventing the sewing machine from sinking. When retracted, it does not affect the movement and transportation of the sewing machine.
[0005] Furthermore, the connecting assembly includes a storage groove, a connecting rod, a limiting hole, and a limiting bolt. The storage groove is respectively opened on the left and right sides of the lower end of the mounting base. The connecting rod is rotatably connected to the rear side of the storage groove. The front end of the second support rod and the rear side of the third support rod are both opened with limiting holes. The limiting bolts are threaded to the front side of the connecting rod. The outer surface of the limiting bolt near the middle of the mounting base is threaded to the inner wall of the laterally adjacent limiting hole, which further enhances the support effect on the sewing machine.
[0006] Furthermore, the connecting assembly also includes a mounting plate, bolt hole one, connecting bolts, and bolt hole two. The mounting plate is respectively located in the middle of the left and right sides of the support rod one. Bolt hole one is opened in the middle of the interior of the mounting plate. Connecting bolts are inserted into the interior of bolt hole one. Bolt hole two is opened in the middle of the left and right sides of the lower end of the mounting base. Bolt hole two is installed in conjunction with the connecting bolts to provide a foundation for the storage and fixation of support rod one and connecting rod.
[0007] Furthermore, the installation mechanism also includes a fixing component, which includes a sliding groove, sliding columns, fixing bolts, and fixing nuts. The sliding groove is located in the middle of the interior of the mounting base, and the front end of the outer surface of the clamping plate is slidably connected to the inner wall of the sliding groove. The sliding columns are respectively located on the left and right sides inside the sliding groove, and the outer surfaces of the sliding columns are slidably connected to the front interior of the clamping plate. The fixing bolts are located on the left and right sides at the rear of the interior of the mounting base, and the middle of the outer surface of the fixing bolts penetrates the rear interior of the clamping plate and is slidably connected to the rear interior of the clamping plate. The fixing nuts are threaded to the middle of the outer surface of the fixing bolts, and the lower ends of the fixing nuts are fitted with the upper ends of the clamping plates, providing a foundation for the connection between the sewing machine and the external frame.
[0008] Furthermore, a transmission adjustment module is provided on the rear side of the sewing machine housing, and a rotatable needle plate is provided on the front side of the sewing machine housing. The transmission adjustment module is installed in conjunction with the needle plate. A thread take-up sewing module is provided on the left side of the sewing machine housing. The transmission adjustment module is installed in conjunction with the thread take-up sewing module, providing a basis for sewing wool sweater pieces.
[0009] Furthermore, it also includes a drive motor, which is located at the rear right side of the sewing machine housing. The input end of the drive motor is electrically connected to the output end of the microcontroller, and the left end of the output shaft of the drive motor is fixedly connected to the right end of the transmission adjustment module, thereby improving the driving effect for sewing wool sweater pieces.
[0010] Furthermore, it also includes a microcontroller, which is placed on the right side of the sewing machine housing, and the input terminal of the microcontroller is electrically connected to an external power supply.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-speed wool sweater sewing machine has the following advantages: The sewing machine is connected to the external frame via a mounting base. Through the connection between the sewing machine housing and the mounting base, and with the support of support rods one, two, three, and the connecting rod, a stable support structure consisting of three triangular structures can be formed between the external frame and the lower front side of the sewing machine. With the addition of clamps, fixing bolts, and fixing nuts, a stable support effect can be achieved for the sewing machine, preventing it from sinking and avoiding the frequent adjustments required by traditional yarn bobbin supports. At the same time, the entire mounting mechanism can be retracted into the mounting base when not in use, without affecting the movement and transportation of the sewing machine. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the sewing machine housing of this utility model; Figure 3 This is a schematic diagram of the installation mechanism of this utility model; Figure 4 This is a cross-sectional structural diagram of the installation mechanism of this utility model; Figure 5 This is a structural schematic diagram of the fixing component of this utility model.
[0013] In the diagram: 1 Mounting base, 2 Sewing machine housing, 3 Clamping plate, 4 Mounting mechanism, 41 Support rod one, 42 Support rod two, 43 Support rod three, 44 Limiting block, 45 Pin shaft, 46 Connecting assembly, 461 Storage groove, 462 Connecting rod, 463 Limiting hole, 464 Limiting bolt, 465 Mounting plate, 466 Bolt hole one, 467 Connecting bolt, 468 Bolt hole two, 47 Fixing assembly, 471 Slide groove, 472 Slide column, 473 Fixing bolt, 474 Fixing nut, 5 Needle disc, 6 Thread take-up sewing module, 7 Drive motor, 8 Microcontroller. Detailed Implementation
[0014] 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.
[0015] Please see Figure 1-5 This embodiment provides a technical solution: a high-speed wool sweater sewing machine, including a mounting base 1 and a mounting mechanism 4; Mounting base 1: A sewing machine housing 2 is located on its upper front side. A movable clamping plate 3 is located on the upper rear side of mounting base 1. A transmission adjustment module is located inside the rear side of the sewing machine housing 2. The transmission adjustment module consists of a transmission component and a speed control component commonly found inside sewing machines in the prior art. The transmission component and speed control component include a transmission gear set, an adjustment knob above the transmission gear set, and an adjustment handwheel on the right side of the transmission gear set. The transmission gear set consists of a worm gear, a worm, and multiple transmission gears. These multiple transmission gear sets mesh with each other. The right end of the worm is fixedly connected to the adjustment handwheel. Synchronous pulleys are located on the right end of the outer surface of the worm and the right end of the interior of the sewing machine housing 2. The two synchronous pulleys are connected by a synchronous belt drive. Rotating the adjustment knob and the adjustment handwheel can drive... The corresponding structural movement of the transmission gear set enables the adjustment of the speed and feed of the sewing machine. A rotatable needle disc 5 is located on the front side of the sewing machine housing 2. The needle disc 5 consists of a disc body and evenly distributed hanging needles along its edge. An internal gear ring is also located inside the needle disc 5. The transmission adjustment module is installed in conjunction with the needle disc 5. Multiple transmission gears in the transmission gear set inside the transmission adjustment module mesh with the internal gear ring. Different transmission gears can be engaged with the internal gear ring by rotating the adjustment knob and handwheel. When the worm gear drives the worm wheel to rotate, the reduction speed of multiple transmission gears causes the corresponding transmission gear to mesh with the internal gear ring, thus driving the needle disc 5 to rotate. A thread take-up and sewing module 6 is located on the left side of the sewing machine housing 2. The thread take-up and sewing module 6 is a sewing disc commonly used in existing technologies. The machine's internal components consist of a thread-taking assembly and a sewing assembly, including a sewing needle, a deflectable swing arm, a first transmission rod, a second transmission rod, a lever, and a thread-taking hook. The sewing needle is fixedly connected to the lower end of the swing arm, and the upper rear side of the swing arm's outer surface is rotatably connected to the left end of the first transmission rod. The thread-taking hook is fixedly connected to the right end of the lever, and the rear side of the lever is rotatably connected to the left end of the second transmission rod. Both the first and second transmission rods are rotatably connected to the upper end of a transmission gear set. A transmission adjustment module is installed in conjunction with the thread-taking and sewing module 6. When the transmission gear set in the transmission adjustment module is running, the first and second transmission rods rotate accordingly. The first transmission rod drives the swing arm and sewing needle to swing left and right, while the second transmission rod drives the lever and thread-taking hook to swing back and forth, thus realizing the movement of the thread-taking hook and sewing module. The periodic displacement of the sewing needle drives the thread through the wool sweater piece, thereby sewing the wool sweater piece and providing a basis for sewing the wool sweater piece. It also includes a drive motor 7, which is located at the rear right side of the sewing machine housing 2. The input end of the drive motor 7 is electrically connected to the output end of the microcontroller 8. The left end of the output shaft of the drive motor 7 is fixedly connected to the right end of the transmission adjustment module. The left end of the output shaft of the drive motor 7 is also fixedly connected to the right end of the synchronous pulley located at the rear inside the transmission adjustment module. The sewing machine housing 2, the transmission adjustment module, the needle plate 5, the thread take-up sewing module 6 and the drive motor 7 constitute a sewing machine commonly used in the prior art. It also includes a microcontroller 8, which is placed on the right side of the sewing machine housing 2. The input end of the microcontroller 8 is electrically connected to an external power supply. Mounting mechanism 4 includes support rod 1 41, support rod 2 42, support rod 3 43, limiting block 44, pin 45, and connecting assembly 46. Support rod 1 41 is rotatably connected to the rear of the lower middle part of the inner part of the mounting base 1. Support rod 2 42 is rotatably connected to the lower inner part of support rod 1 41. Support rod 3 43 is slidably connected to the front inner part of support rod 2 42. Limiting block 44 is located at the lower middle part of the sewing machine housing 2. The front end of the outer surface of support rod 3 43 is in contact with the inner wall of limiting block 44. Pin 45 is inserted into the interior of limiting block 44. The middle part of the outer surface of pin 45 is inserted into the front end of the interior of support rod 3 43, providing retractable and stable support for the sewing machine. Connecting assembly 46 is located at the lower end of the mounting base 1 and is equipped with retractable mounting mechanism 4. When unfolded, it can provide stable support for the sewing machine below, preventing the sewing machine from sinking. When retracted, it does not affect the movement and transportation of the sewing machine. The connecting assembly 46 includes a receiving groove 461, a connecting rod 462, a limiting hole 463, and a limiting bolt 464. The receiving groove 461 is respectively opened on the left and right sides of the lower end of the mounting base 1. The connecting rod 462 is rotatably connected to the rear side of the receiving groove 461. The front end of the second support rod 42 and the rear side of the third support rod 43 are both provided with limiting holes 463. The limiting bolts 464 are threaded to the front side of the connecting rod 462. The outer surface of the limiting bolts 464 near the middle of the mounting base 1 is threaded to the inner wall of the laterally adjacent limiting hole 463, further enhancing the support effect on the sewing machine. The connecting assembly 46 also includes a mounting plate 4. 65. Bolt hole 1 466, connecting bolt 467, and bolt hole 2 468 are respectively provided on the middle of the left and right sides of the support rod 1 41. Bolt hole 1 466 is opened in the middle of the interior of the mounting plate 465. Connecting bolt 467 is inserted into the interior of bolt hole 1 466. Bolt hole 2 468 is opened in the middle of the left and right sides of the lower end of the interior of the mounting base 1. Bolt hole 2 468 is installed in conjunction with connecting bolt 467. When the mounting plate 465 is retracted, the connecting bolt 467 passes through bolt hole 1 466 on the mounting plate 465 and is threaded to the corresponding bolt hole 2 468, providing a foundation for the storage and fixation of support rod 1 41 and connecting rod 462. The mounting mechanism 4 also includes a fixing component 47, which includes a sliding groove 471, a sliding column 472, a fixing bolt 473, and a fixing nut 474. The sliding groove 471 is located in the middle of the interior of the mounting base 1. The front end of the outer surface of the clamping plate 3 is slidably connected to the inner wall of the sliding groove 471. The sliding column 472 is respectively located on the left and right sides inside the sliding groove 471. The outer surface of the sliding column 472 is slidably connected to the front side of the interior of the clamping plate 3. The fixing bolt 473 is located on the left and right sides at the rear of the interior of the mounting base 1. Hexagonal slots are provided on the rear left and right sides at the lower end of the interior of the mounting base 1. The hexagonal heads of the fixing bolts 473 are inserted into the corresponding hexagonal slots. The middle part of the outer surface of the fixing bolts 473 penetrates the rear side of the interior of the clamping plate 3 and is slidably connected to the rear side of the interior of the clamping plate 3. The fixing nuts 474 are threaded to the middle part of the outer surface of the fixing bolts 473. The lower end of the fixing nuts 474 is attached to the upper end of the clamping plate 3, providing a foundation for the connection between the sewing machine and the external frame.
[0016] The working principle of the high-speed wool sweater sewing machine provided by this utility model is as follows: When installing the high-speed wool sweater sewing machine, the installation mechanism 4 is in a retracted state. The connecting rod 462 and the limiting bolt 464 are both located inside the corresponding storage groove 461. The third support rod 43 is located inside the second support rod 42, the second support rod 42 is located inside the first support rod 41, the first support rod 41 is located inside the mounting base 1, and the mounting plate 465 is also in a close fit with the lower end of the mounting base 1. At this time, the connecting bolt 467 passes through the bolt hole 466 on the mounting plate 465 and is threadedly connected to the corresponding bolt hole 468. The mounting plate 465 also provides a limiting effect on the connecting rod 462 and the limiting bolt 464 inside the storage groove 461, so that the connecting rod 462 and the limiting bolt 464 will not leave the storage groove. Inside the slot 461, the unfolding process is then carried out. At this time, the sewing machine and the mounting base 1 are in a separated state. Reverse the connecting bolt 467 so that the connecting bolt 467 is completely separated from the corresponding bolt hole 468. At this time, the mounting plate 465 and the support rod 41 lose their limiting effect. Rotate the support rod 41 downward by 90 degrees, and then rotate the support rod 42 forward. At the same time, pull the support rod 43 out from inside the support rod 42 until the limiting hole 463 inside the support rod 42 coincides with the limiting hole 463 inside the support rod 43. After the support rod 41 is rotated into place, the connecting rod 462 also loses its limiting effect. Rotate the connecting rod 462 so that the limiting bolt 464 is aligned with the limiting hole 463. Rotate the limiting bolt 464 forward so that the outer surface of the limiting bolt 464 is close to the mounting base 1. One side of the part is threadedly connected to the inner wall of the adjacent lateral limiting hole 463. At this time, the limiting bolt 464 passes through the connecting rod 462, the second support rod 42, and the third support rod 43 simultaneously through the threaded relationship with the connecting rod 462 and the limiting hole 463, forming a limiting effect on the three of them, so that the three are connected together. The third support rod 43 can no longer be retracted into the second support rod 42, the second support rod 42 can no longer be retracted into the first support rod 41, and similarly, the connecting rod 462 can no longer be retracted into the receiving groove 461. Then, the mounting base 1 is connected to the external frame. At this time, the fixing nut 474 is reversed first to separate the fixing nut 474 from the fixing bolt 473. The fixing bolt 473 is removed, and the clamping plate 3 is moved up so that the lower end of the clamping plate 3 is connected to the external frame. The distance between the upper rear sides of the mounting base 1 is greater than the thickness of the outer frame edge protrusion. The mounting base 1 is placed at a suitable position on the outer frame edge protrusion, so that the upper rear side of the mounting base 1 is in contact with the lower end of the outer frame edge protrusion. Simultaneously, the rear ends of the support rod 41 and the mounting plate 465 are in contact with the front end of the outer frame. The bolt hole 468 on the mounting plate 465 is longitudinally adjacent to the pre-drilled hole at the front end of the outer frame. Then, the clamping plate 3 is lowered so that its lower end is in contact with the upper end of the outer frame edge protrusion. The fixing bolt 473 is then inserted back into its original position, with the hexagonal head at the lower end of the fixing bolt 473 inserted into the corresponding hexagonal slot. The outer surface of the fixing bolt 473 passes sequentially through the inner rear side of the mounting base 1, the through hole on the outer frame edge protrusion, and the inner rear side of the clamping plate 3.Then, the fixing nut 474 is re-sleeved onto the outer surface of the fixing bolt 473. Rotating the fixing nut 474 causes the fixing bolt 473 to remain stationary due to the hexagonal groove, causing the fixing nut 474 to continuously move downwards until its lower end is tightly against the upper end of the clamping plate 3. At this point, the inner rear side of the mounting base 1 and the clamping plate 3 create a clamping effect on the edge protrusion of the external frame. Combined with the compression and limiting effect of the fixing bolt 473 and the fixing nut 474, the mounting base 1 is firmly connected to the external frame. To improve the stability of the mounting base 1, the previously removed connecting bolt 467 is reinserted into the bolt hole 468. Rotating the connecting bolt 467 causes its outer rear end to connect with the corresponding pre-drilled thread. At this point, the mounting base 1 is completely fixed, forming... Figure 3 In the current state, support rod 41, support rod 42, and connecting rod 462 form a stable triangular structure. At this point, pin 45 is pulled out from the front of support rod 43, and then the sewing machine housing 2 is connected to the mounting base 1 using external bolts. Simultaneously, as the sewing machine housing 2 is installed, the front end of support rod 43 fits against the inner wall of the lower limit block 44 of the sewing machine housing 2, providing support to the lower front of the sewing machine housing 2. The previously removed pin 45 is then inserted from the right side of the limit block 44, allowing pin 45 to pass through the interior of the limit block 44 and the front of support rod 43, thus connecting the sewing machine housing 2 and support rod 43 together. Figure 2 In this state, the sewing machine housing 2 and the mounting base 1 are connected together to form a whole. Together with the support rod 3 43 and the connecting rod 462, they form another triangular structure. At the same time, the whole formed by the sewing machine housing 2 and the mounting base 1, the whole formed by the support rod 2 42 and the support rod 3 43, and the support rod 1 41 form another triangular structure. The three triangular structures work together to provide stable support for the lower front side of the sewing machine.
[0017] It is worth noting that the microcontroller 8 disclosed in the above embodiments can be an STM32F031G4 microcontroller, and the drive motor 7 can be a 2BLD10-24GN-20S motor. The microcontroller 8 controls the operation of the drive motor 7 using methods commonly used in the prior art.
[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-speed wool sweater sewing machine, characterized in that: Includes a mounting base (1) and a mounting mechanism (4); Mounting base (1): The upper front side is provided with a sewing machine housing (2), and the upper rear side of the mounting base (1) is provided with a movable clamping plate (3). The mounting mechanism (4) includes a first support rod (41), a second support rod (42), a third support rod (43), a limiting block (44), a pin (45), and a connecting component (46). The first support rod (41) is rotatably connected to the rear of the lower middle part of the inner part of the mounting base (1). The second support rod (42) is rotatably connected to the lower inner part of the first support rod (41). The third support rod (43) is slidably connected to the front inner part of the second support rod (42). The limiting block (44) is located at the middle of the lower part of the sewing machine housing (2). The front end of the outer surface of the third support rod (43) is in contact with the inner wall of the limiting block (44). The pin (45) is inserted into the interior of the limiting block (44). The middle part of the outer surface of the pin (45) is inserted into the front end of the inner part of the third support rod (43). The connecting component (46) is located at the lower end of the mounting base (1).
2. The high-speed wool sweater sewing machine according to claim 1, characterized in that: It also includes a microcontroller (8), which is placed on the right side of the sewing machine housing (2), and the input terminal of the microcontroller (8) is electrically connected to an external power supply.
3. The high-speed wool sweater sewing machine according to claim 1, characterized in that: The connecting assembly (46) includes a storage groove (461), a connecting rod (462), a limiting hole (463), and a limiting bolt (464). The storage groove (461) is respectively opened on the left and right sides of the lower end of the mounting base (1). The connecting rod (462) is rotatably connected to the rear side of the storage groove (461). The front end of the second support rod (42) and the rear side of the third support rod (43) are both provided with limiting holes (463). The limiting bolt (464) is threaded to the front side of the connecting rod (462). The outer surface of the limiting bolt (464) near the middle of the mounting base (1) is threaded to the inner wall of the adjacent limiting hole (463).
4. The high-speed wool sweater sewing machine according to claim 1, characterized in that: The connecting assembly (46) also includes a mounting plate (465), bolt hole one (466), connecting bolt (467) and bolt hole two (468). The mounting plate (465) is respectively located in the middle of the left and right sides of the support rod one (41). Bolt hole one (466) is opened in the middle of the interior of the mounting plate (465). Connecting bolt (467) is inserted into the interior of bolt hole one (466). Bolt hole two (468) is respectively opened in the middle of the left and right sides of the lower end of the mounting base (1). Bolt hole two (468) is installed in conjunction with connecting bolt (467).
5. A high-speed wool sweater sewing machine according to claim 1, characterized in that: The installation mechanism (4) further includes a fixing component (47), which includes a sliding groove (471), a sliding column (472), a fixing bolt (473), and a fixing nut (474). The sliding groove (471) is located in the middle of the interior of the mounting base (1). The front end of the outer surface of the clamping plate (3) is slidably connected to the inner wall of the sliding groove (471). The sliding column (472) is located on the left and right sides inside the sliding groove (471). The outer surface of the sliding column (472) is slidably connected to the front side of the interior of the clamping plate (3). The fixing bolt (473) is located on the left and right sides behind the interior of the mounting base (1). The middle part of the outer surface of the fixing bolt (473) penetrates the rear side of the interior of the clamping plate (3) and is slidably connected to the rear side of the interior of the clamping plate (3). The fixing nut (474) is threadedly connected to the middle part of the outer surface of the fixing bolt (473). The lower end of the fixing nut (474) is attached to the upper end of the clamping plate (3).
6. A high-speed wool sweater sewing machine according to claim 2, characterized in that: The sewing machine housing (2) has a transmission adjustment module on the rear side inside and a rotatable needle plate (5) on the front side inside. The transmission adjustment module is installed in conjunction with the needle plate (5). The sewing machine housing (2) has a thread take-up sewing module (6) on the left side. The transmission adjustment module is installed in conjunction with the thread take-up sewing module (6).
7. A high-speed wool sweater sewing machine according to claim 6, characterized in that: It also includes a drive motor (7), which is located at the rear right side of the sewing machine housing (2). The input end of the drive motor (7) is electrically connected to the output end of the microcontroller (8), and the left end of the output shaft of the drive motor (7) is fixedly connected to the right end of the transmission adjustment module.