Novel automatic thread locking sewing equipment

By using automated auxiliary sewing components, the problems of labor-intensive and inaccurate manual calibration are solved, achieving precise control and stable delivery, and improving the efficiency and adaptability of sewing equipment.

CN223936752UActive Publication Date: 2026-02-24BIJIE JINGWONG GARMENT CO LTD
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Patent Information

Application Number
CN202520421598.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-24
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing automatic sewing equipment requires manual calibration of materials, which is labor-intensive and lacks precision, resulting in inaccurate sewing and affecting sewing quality.

Method used

It adopts automated auxiliary sewing components, including sliding plates, rotating rods, clamping gears, stepper motors and servo motors, etc., and achieves precise control and coordination through a controller to automatically clamp and guide the movement of materials, adapting to sewing materials of different thicknesses and types.

Benefits of technology

It improves sewing precision and speed, reduces manual operation, enhances the versatility and flexibility of the equipment, and ensures stable clamping and smooth delivery of materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel automatic thread-locking sewing device, which relates to the technical field of sewing, and comprises a sewing operation table, one end of the sewing operation table is provided with a sewing end, one side of the sewing end is provided with an auxiliary sewing assembly used for auxiliary sewing, the auxiliary sewing assembly comprises a mounting frame, and the mounting frame is provided with a thread-locking device. A controller is mounted on one side of the mounting frame, a sliding plate is mounted on the inner wall of the mounting frame, a moving frame is arranged on the inner wall of the sliding plate, a rotating rod is mounted on the inner wall of the moving frame, a clamping gear is mounted at one end of the rotating rod, and a stepping motor is mounted on one side of the moving frame. According to the automatic auxiliary sewing assembly, materials can be automatically clamped and guided to move, and steps and time of manual operation are reduced. And the controller is electrically connected with the stepping motor and the servo motor, so that accurate control and coordinated operation are realized, and the sewing precision and speed are improved.
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Description

Technical Field

[0001] This utility model relates to the field of sewing technology, specifically a new type of automatic lock-thread sewing equipment. Background Technology

[0002] The working principle of automatic lockstitch sewing equipment is mainly based on a precise mechanical structure and control system. Through a preset program, the equipment can automatically complete a series of operations such as thread feeding, thread cutting, and locking.

[0003] Existing automatic sewing machines require manual alignment of the fabric or material to be sewn with the sewing machine's sewing area. However, manual alignment is labor-intensive, inaccurate, and the feeding speed is unstable, which can easily lead to inaccurate sewing and poor sewing quality. Utility Model Content

[0004] This utility model provides a new type of automatic lockstitch sewing equipment, which has the advantages of uniform feeding and auxiliary lockstitching. It solves the problem that existing automatic lockstitch sewing equipment requires manual alignment of the fabric or material to be sewn onto the lockstitching area of ​​the sewing equipment. However, manual calibration is labor-intensive and not very accurate. The unstable control of the feeding speed can easily lead to inaccurate lockstitching and poor material lockstitching.

[0005] To achieve uniform feeding and assist in thread locking, this utility model provides the following technical solution: A novel automatic thread locking sewing device includes a sewing operating table. One end of the sewing operating table is provided with a sewing end. One side of the sewing end is provided with an auxiliary sewing component for assisting sewing. The auxiliary sewing component includes a mounting frame. A controller is mounted on one side of the mounting frame. A sliding plate is mounted on the inner wall of the mounting frame. A moving frame is provided on the inner wall of the sliding plate. A rotating rod is mounted on the inner wall of the moving frame. A clamping gear is mounted on one end of the rotating rod. A stepper motor is mounted on one side of the moving frame. A transmission gear is mounted on the other end of the rotating rod. A toothed belt is provided on the outer surface of the transmission gear. An adjustment groove is opened on one side of the mounting frame. A moving block is mounted on the inner wall of the adjustment groove. A transmission component for adjusting the height of the auxiliary sewing component is mounted on one side surface of the moving frame.

[0006] As a preferred embodiment of this utility model, the transmission component includes a fixing block, which is mounted on one side surface of the movable frame. A threaded rod is installed on the inner wall of the fixing block, and a servo motor is installed on the top surface of the threaded rod.

[0007] In a preferred embodiment of this utility model, the bottom surface of the mounting frame is fixedly connected to the top surface of the middle part of the sewing worktable, and the sliding plate is symmetrically installed on the inner wall of the mounting frame, with the bottom surface of the sliding plate fixedly connected to the bottom surface of the inner wall of the mounting frame.

[0008] As a preferred embodiment of this utility model, the top surface of the sliding plate is fixedly connected to the top surface of the inner wall of the mounting frame, the outer surfaces of both ends of the movable frame are slidably connected to the inner wall of the sliding plate, and the rotating rods are in two sets, with each set consisting of four equidistant rotating rods slidably connected to the inner wall of the movable frame.

[0009] As a preferred technical solution of this utility model, one end of each of the rotating rods is fixedly connected to one side surface of a clamping gear, and another set of the rotating rods is arranged at the bottom and cooperates with the previous set. The outer surface of the lower set of rotating rods is movably and rotatably connected to the lower inner wall of the movable frame.

[0010] As a preferred embodiment of this utility model, one side surface of the stepper motor is fixedly connected to one side surface of the moving frame, the output end of the stepper motor is fixedly connected to one end of the rotating rod, the outer surfaces of the four transmission gears mesh with the inner wall of the toothed belt, and the outer surface of the moving block is slidably connected to the inner wall of the adjusting groove.

[0011] In a preferred embodiment of this utility model, one side of the fixed block is fixedly connected to one side of the movable frame, the inner wall of the fixed block is movably and rotatably connected to the outer surface of the threaded rod, the top surface of the threaded rod is fixedly connected to the output end of the servo motor, the bottom surface of the servo motor is fixedly connected to the top surface of the mounting frame, the outer surface of the threaded rod is movably and rotatably connected to the inner wall of the mounting frame, and the controller is electrically connected to the stepper motor and the servo motor.

[0012] Compared with the prior art, this utility model provides a novel automatic lock-thread sewing device, which has the following beneficial effects:

[0013] This new type of automatic lockstitch sewing equipment can automatically clamp and guide material movement through automated auxiliary sewing components, reducing manual operation steps and time. The electrical connection between the controller and stepper motors and servo motors enables precise control and coordinated operation, improving sewing accuracy and speed.

[0014] The transmission assembly allows for height adjustment of the auxiliary sewing components, accommodating different thicknesses and types of sewing materials, thus improving the equipment's versatility and flexibility. The design of the adjustment slot and moving block enables fine-tuning of the moving frame's position, ensuring the clamping gears accurately hold the material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the external structure of the auxiliary sewing component of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the auxiliary sewing component of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the mobile frame of this utility model;

[0019] Figure 5 This utility model provides Figure 4 Enlarged schematic diagram of part A in the middle.

[0020] In the diagram: 1. Sewing operating table; 2. Sewing end; 3. Auxiliary sewing component; 300. Mounting frame; 301. Controller; 302. Sliding plate; 303. Moving frame; 304. Rotating rod; 305. Clamping gear; 306. Stepper motor; 307. Transmission gear; 308. Toothed belt; 309. Moving block; 310. Adjustment groove; 4. Transmission component; 40. Fixing block; 41. Threaded rod; 42. Servo motor. Detailed Implementation

[0021] 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. Example 1

[0022] Please see Figures 1-2This utility model discloses a novel automatic sewing machine, including a sewing operating table 1. One end of the sewing operating table 1 is provided with a sewing end 2. One side of the sewing end 2 is provided with an auxiliary sewing component 3 for assisting sewing. The auxiliary sewing component 3 includes a mounting frame 300. A controller 301 is installed on one side of the mounting frame 300. A sliding plate 302 is installed on the inner wall of the mounting frame 300. A moving frame 303 is provided on the inner wall of the sliding plate 302. A rotating rod 304 is installed on the inner wall of the moving frame 303. A clamping gear 305 is installed at one end of the rotating rod 304. A stepper motor 306 is installed on one side of the moving frame 303. A transmission gear 307 is installed at the other end of the rotating rod 304. A toothed belt 308 is provided on the outer surface of the transmission gear 307. An adjustment groove 310 is opened on one side of the mounting frame 300. A moving block 309 is installed on the inner wall of the adjustment groove 310. A transmission component 4 for adjusting the height of the auxiliary sewing component 3 is installed on one side of the moving frame 303.

[0023] The transmission assembly 4 includes a fixing block 40, which is mounted on one side surface of the movable frame 303. A threaded rod 41 is mounted on the inner wall of the fixing block 40, and a servo motor 42 is mounted on the top surface of the threaded rod 41.

[0024] The bottom surface of the mounting frame 300 is fixedly connected to the top surface of the middle part of the sewing operating table 1. The sliding plate 302 is symmetrically installed on the inner wall of the mounting frame 300, and the bottom surface of the sliding plate 302 is fixedly connected to the bottom surface of the inner wall of the mounting frame 300.

[0025] Depending on the thickness and type of sewing material, the height of the auxiliary sewing assembly 3 is adjusted using the transmission assembly 4. The servo motor 42 starts upon receiving a command from the controller 301, and its output drives the threaded rod 41 to rotate. The rotation of the threaded rod 41, through the engagement of the thread with the inner wall of the fixed block 40, pushes the moving frame 303 and its internal components, such as the rotating rod 304 and clamping gear 305, to move up and down until a suitable height is reached. During the up-and-down movement of the moving frame 303, the sliding plate 302 ensures smooth sliding of the moving frame 303 in the vertical direction. Example 2

[0026] Based on the above embodiment 1, please refer to Figures 3-5 The top surface of the sliding plate 302 is fixedly connected to the top surface of the inner wall of the mounting frame 300. The outer surfaces of both ends of the movable frame 303 are slidably connected to the inner wall of the sliding plate 302. There are two sets of rotating rods 304. One set of rotating rods 304 consists of four equidistant sliding and rotating connections to the inner wall of the movable frame 303.

[0027] One end of each rotating rod 304 is fixedly connected to one side surface of a clamping gear 305. Another set of rotating rods 304 is located at the bottom and cooperates with the previous set. The outer surface of the lower set of rotating rods 304 is movably and rotatably connected to the lower inner wall of the movable frame 303.

[0028] One side surface of the stepper motor 306 is fixedly connected to one side surface of the moving frame 303. The output end of the stepper motor 306 is fixedly connected to one end of the rotating rod 304. The outer surfaces of the four transmission gears 307 mesh with the inner wall of the toothed belt 308. The outer surface of the moving block 309 is slidably connected to the inner wall of the adjusting groove 310.

[0029] One side of the fixed block 40 is fixedly connected to one side of the moving frame 303. The inner wall of the fixed block 40 is movably and rotatably connected to the outer surface of the threaded rod 41. The top surface of the threaded rod 41 is fixedly connected to the output end of the servo motor 42. The bottom surface of the servo motor 42 is fixedly connected to the top surface of the mounting frame 300. The outer surface of the threaded rod 41 is movably and rotatably connected to the inner wall of the mounting frame 300. The controller 301 is electrically connected to the stepper motor 306 and the servo motor 42.

[0030] The edge of the sewing material is aligned with the clamping area of ​​the clamping gear 305, ready for clamping. The controller 301 sends a command to the stepper motor 306, which starts and drives the rotating rod 304 to rotate. The rotation of the rotating rod 304 drives the clamping gear 305 to rotate, thereby clamping the edge of the sewing material. At this time, the upper set of clamping gears 305 and the lower set of clamping gears 305 cooperate to ensure stable clamping of the material. Material transport during sewing: The controller 301 controls the output speed and direction of the stepper motor 306. The stepper motor 306 drives the clamping gear 305 to rotate at a certain speed through the rotating rod 304, thereby guiding the sewing material to move along a predetermined path.

[0031] The working principle and usage process of this utility model are as follows: Place the material to be sewn flat on the sewing operating table 1, ensuring that one end of the material is aligned with the starting position of the sewing end 2. Press the start button on the controller 301, the device begins initialization, and the controller 301 enters standby mode, ready to receive operation commands.

[0032] Adjusting the height of the auxiliary sewing assembly: The height of the auxiliary sewing assembly 3 is adjusted using the transmission assembly 4 according to the thickness and type of the sewing material. The servo motor 42 starts upon receiving a command from the controller 301, and its output drives the threaded rod 41 to rotate. The rotation of the threaded rod 41, through the engagement of the thread with the inner wall of the fixed block 40, pushes the moving frame 303 and its internal rotating rod 304, clamping gear 305, and other components up and down until a suitable height is reached. During the up-and-down movement of the moving frame 303, the sliding plate 302 ensures smooth vertical sliding of the moving frame 303 while preventing it from swaying left and right.

[0033] Material clamping and conveying preparation: Align the edge of the sewing material with the clamping area of ​​the clamping gear 305, preparing for the clamping operation. The controller 301 sends a command to the stepper motor 306, which starts and drives the rotating rod 304 to rotate. The rotation of the rotating rod 304 drives the clamping gear 305 to rotate, thereby clamping the edge of the sewing material. At this time, the upper set of clamping gears 305 and the lower set of clamping gears 305 cooperate with each other to ensure stable clamping of the material.

[0034] Material delivery during sewing: Controller 301 controls the output speed and direction of stepper motor 306. Stepper motor 306 drives clamping gear 305 to rotate at a certain speed through rotating rod 304, thereby guiding sewing material to move along a predetermined path.

[0035] Meanwhile, the toothed belt 308, through the linkage between the transmission gear 307 and the rotating rod 304, ensures smooth material transport. The inner wall of the toothed belt 308 meshes tightly with the outer surfaces of the four transmission gears 307, forming a stable transmission system.

[0036] Sewing operation: As the material is clamped and smoothly fed, the sewing machine begins to work, sewing along the set sewing path. The controller 301 monitors the sewing progress and status in real time to ensure the smooth progress of the sewing process.

[0037] Sewing completion and material release: When the sewing reaches the predetermined length or is completed, the controller 301 stops the stepper motor 306 and the sewing machine. The stepper motor 306 reverses, driving the rotating rod 304 and the clamping gear 305 to rotate in the opposite direction, releasing the clamped sewing material.

Claims

1. A novel automatic lockstitch sewing device, comprising a sewing operating table (1), wherein a sewing end (2) is provided at one end of the sewing operating table (1), characterized in that: One side of the sewing end (2) is provided with an auxiliary sewing component (3) for assisting sewing. The auxiliary sewing component (3) includes a mounting frame (300), a controller (301) is mounted on one side of the mounting frame (300), a sliding plate (302) is mounted on the inner wall of the mounting frame (300), a moving frame (303) is provided on the inner wall of the sliding plate (302), a rotating rod (304) is mounted on the inner wall of the moving frame (303), a clamping gear (305) is mounted on one end of the rotating rod (304), a stepper motor (306) is mounted on one side of the moving frame (303), a transmission gear (307) is mounted on the other end of the rotating rod (304), a toothed belt (308) is provided on the outer surface of the transmission gear (307), an adjustment groove (310) is provided on one side of the mounting frame (300), a moving block (309) is mounted on the inner wall of the adjustment groove (310), and a transmission component (4) for adjusting the height of the auxiliary sewing component (3) is mounted on one side surface of the moving frame (303).

2. The novel automatic lockstitch sewing equipment according to claim 1, characterized in that: The transmission assembly (4) includes a fixed block (40), which is mounted on one side surface of the movable frame (303). A threaded rod (41) is mounted on the inner wall of the fixed block (40), and a servo motor (42) is mounted on the top surface of the threaded rod (41).

3. The novel automatic lockstitch sewing equipment according to claim 1, characterized in that: The bottom surface of the mounting frame (300) is fixedly connected to the top surface of the middle part of the sewing operation table (1). The sliding plate (302) is symmetrically installed on the inner wall of the mounting frame (300). The bottom surface of the sliding plate (302) is fixedly connected to the bottom surface of the inner wall of the mounting frame (300).

4. The novel automatic lockstitch sewing equipment according to claim 3, characterized in that: The top surface of the sliding plate (302) is fixedly connected to the top surface of the inner wall of the mounting frame (300). The outer surfaces of both ends of the movable frame (303) are slidably connected to the inner wall of the sliding plate (302). There are two sets of rotating rods (304). One set of rotating rods (304) consists of four equidistant sliding and rotating connections to the inner wall of the movable frame (303).

5. A novel automatic lockstitch sewing machine according to claim 4, characterized in that: One end of each of the rotating rods (304) is fixedly connected to one side surface of a clamping gear (305). Another set of the rotating rods (304) is located at the bottom and cooperates with the previous set. The outer surface of the lower set of rotating rods (304) is movably and rotatably connected to the lower inner wall of the movable frame (303).

6. A novel automatic lockstitch sewing machine according to claim 1, characterized in that: One side surface of the stepper motor (306) is fixedly connected to one side surface of the moving frame (303), the output end of the stepper motor (306) is fixedly connected to one end of the rotating rod (304), the outer surfaces of the four transmission gears (307) mesh with the inner wall of the toothed belt (308), and the outer surface of the moving block (309) is slidably connected to the inner wall of the adjusting groove (310).

7. A novel automatic lockstitch sewing machine according to claim 2, characterized in that: One side of the fixed block (40) is fixedly connected to one side surface of the movable frame (303). The inner wall of the fixed block (40) is movably and rotatably connected to the outer surface of the threaded rod (41). The top surface of the threaded rod (41) is fixedly connected to the output end of the servo motor (42). The bottom surface of the servo motor (42) is fixedly connected to the top surface of the mounting frame (300). The outer surface of the threaded rod (41) is movably and rotatably connected to the inner wall of the mounting frame (300). The controller (301) is electrically connected to the stepper motor (306) and the servo motor (42).