Feeding mechanism for producing U-shaped buckles
By combining the lifting drive assembly, clamping drive assembly, and feeding drive assembly, the problem of uneven feeding in the production of U-shaped buckles is solved, achieving precise feeding and stable conveying of metal strips, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHENGMAO PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional feeding methods in U-shaped buckle production suffer from uneven feeding, difficulty in accurately controlling the feeding amount and height, leading to jamming and deformation of the metal strip, which affects production efficiency and product quality.
It adopts a lifting drive assembly, a clamping drive assembly, and a feeding drive assembly, combined with a PLC controller, to achieve precise feeding and flexible height adjustment of metal strips. The cooperation of positive and negative lead screws and conveying rollers ensures stable clamping and smooth conveying, and a V-shaped support plate provides support.
It enables precise feeding of metal strips, improves production efficiency and product quality, ensures the stability and adaptability of feeding, and avoids jamming and deformation.
Smart Images

Figure CN224254064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of U-shaped buckle production and processing equipment, specifically to a feeding mechanism for producing U-shaped buckles. Background Technology
[0002] U-shaped clips, as key components in mechanical connections, are typically formed by bending metal strips using a bending mechanism. During this bending process, a feeding mechanism is needed to feed the metal strips. The accuracy and stability of this feeding mechanism have a crucial impact on production efficiency and product quality. Traditional feeding methods often suffer from uneven feeding and difficulty in precisely controlling the feeding amount and height, leading to problems such as jamming and metal strip deformation during production, thus affecting efficiency and product quality. Therefore, a feeding mechanism capable of precise feeding control and adaptable to different production needs is required. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a feeding mechanism for producing U-shaped buckles, which can accurately feed the metal strips used to process U-shaped buckles, and can flexibly adjust the feeding height and clamping force, thereby improving production efficiency and product quality.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.
[0005] A feeding mechanism for producing U-shaped buckles includes a worktable. The bottom of the worktable is provided with a lifting drive assembly for driving the worktable up and down. The upper surface of the worktable is provided with a clamping drive assembly, and the clamping drive assembly is provided with a feeding drive assembly for feeding metal strips for producing U-shaped buckles. A support assembly for holding the metal strips is also provided on the worktable. The controlled ends of the lifting drive assembly, clamping drive assembly, and feeding drive assembly are connected to a PLC controller mounted on the worktable.
[0006] Preferably, the lifting drive assembly includes four synchronously moving lifting drive cylinders located at the four corners of the bottom of the workbench, and the controlled end of the lifting drive cylinder is connected to the output end of the PLC controller.
[0007] Preferably, the clamping drive assembly includes two positive and negative lead screws that are horizontally rotatably mounted on the worktable. The two positive and negative lead screws are spaced apart along the feeding direction and perpendicular to the feeding direction. One end of one positive and negative lead screw is connected to a clamping drive motor and is connected to the same side end of the other positive and negative lead screw through a clamping transmission component. The controlled end of the clamping drive motor is connected to the output end of the PLC controller.
[0008] Preferably, the feeding drive assembly includes two mounting frames respectively arranged along the conveying direction. The two mounting frames are arranged opposite each other and are respectively connected to the screw nuts arranged on the same side of two positive and negative screws. A plurality of conveying rollers are longitudinally driven on the mounting frames. The plurality of conveying rollers are spaced apart along the conveying direction and are connected to each other by a feeding transmission component. The feeding transmission component is connected to a feeding drive motor arranged on the mounting frames for driving the conveying rollers to rotate by driving the feeding transmission component to realize feeding. The controlled end of the feeding drive motor is connected to the output end of the PLC controller.
[0009] Preferably, the support assembly includes a plurality of support columns located between two mounting frames and spaced apart along the conveying direction, and the plurality of support columns are alternately arranged with the conveying roller; the top of the support column is provided with a support plate for supporting the metal strip, and the longitudinal section of the support plate is V-shaped.
[0010] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.
[0011] This invention, through its lifting drive component, allows for flexible adjustment of the worktable height, thereby adapting to different production needs and improving the adaptability of the feeding mechanism.
[0012] This invention, through the clamping drive assembly and the cooperation of the positive and negative lead screws and the clamping transmission components, enables the feeding drive assembly to stably clamp the metal strip, ensuring that the metal strip will not shift during the feeding process.
[0013] This invention, through the combination of a feeding drive assembly, conveying rollers, and feeding transmission components, enables the smooth conveying of metal strips, thereby improving the accuracy and efficiency of feeding.
[0014] This invention provides support for metal strips through its support components, preventing them from sagging during feeding. At the same time, the V-shaped support plate reduces friction and further improves the stability of feeding. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the clamping drive assembly structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the feeding drive component of this utility model.
[0018] The components are: 1. worktable, 2. lifting drive assembly, 21. lifting drive cylinder, 3. clamping drive assembly, 31. positive and negative lead screws, 32. lead screw nut, 33. clamping transmission component, 34. clamping drive motor, 4. feeding drive assembly, 41. mounting frame, 42. conveying roller, 43. feeding transmission component, 44. feeding drive motor, 5. support assembly, 51. support column, 52. support plate. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0020] A feeding mechanism for producing U-shaped buckles, combined with Figure 1 As shown, the device includes a worktable 1, which serves as the basic support component of the entire feeding mechanism. A lifting drive assembly 2 is installed at the bottom of the worktable 1, which is used to drive the worktable 1 to rise and fall. A clamping drive assembly 3 is installed on the upper surface of the worktable 1, and a feeding drive assembly 4 is installed on the clamping drive assembly 3. The clamping drive assembly 3 is used to drive the feeding drive assembly 4 to clamp the metal strip used to produce U-shaped buckles, and the feeding drive assembly 4 is used to feed the metal strip. A support assembly 5 is also installed on the worktable 1, which is used to support the metal strip during the feeding process of the feeding drive assembly 4.
[0021] The lifting drive assembly 2 includes four lifting drive cylinders 21, which are located at the four corners of the bottom of the worktable 1 and move synchronously. The lifting drive assembly 2 drives the worktable 1 to rise and fall, thereby realizing the lifting and falling of the entire feeding mechanism, and thus realizing the adjustment of the feeding height to adapt to different production needs and ensure accurate feeding.
[0022] like Figure 2 As shown, the clamping drive assembly 3 includes two positive and negative lead screws 31, which are horizontally rotatably mounted on the worktable 1. The two lead screws 31 are spaced apart along the feeding direction and perpendicular to it. One end of one lead screw 31 is connected to a clamping drive motor 34, and is connected to the same-side end of the other lead screw 31 via a clamping transmission component 33. The clamping drive assembly 3 drives the two lead screws 31 to rotate synchronously through the clamping drive motor 34 and the clamping transmission component 33, thereby driving the feeding drive assembly 4 to clamp and release the metal strip, ensuring clamping force, maintaining the stability of the metal strip during feeding, and preventing damage to the metal strip.
[0023] The feeding drive assembly 4 includes two mounting frames 41, which are respectively arranged along the conveying direction and are positioned opposite each other, and are respectively connected to the screw nuts 32 arranged on the same side of the two positive and negative screws 31. Figure 3As shown, a plurality of conveying rollers 42 are longitudinally driven on the mounting frame 41. These conveying rollers 42 are spaced apart along the conveying direction and are connected to each other via a feeding transmission component 43. The feeding transmission component 43 is connected to a feeding drive motor 44, which is mounted on the mounting frame 41. When the clamping drive assembly 3 drives the two mounting frames 41 to move towards each other to ensure that the conveying rollers 42 on both sides clamp the metal strip, the feeding drive assembly 4 drives the conveying rollers 42 to rotate via the feeding drive motor 44 and the feeding transmission component 43. The rotation directions of the conveying rollers 42 on the two mounting frames 41 are opposite, thereby realizing the feeding of the metal strip. The cooperation between the feeding transmission component 43 and the feeding drive motor 44 ensures the smoothness and accuracy of the feeding.
[0024] The support assembly 5 includes several support columns 51, which are located between two mounting frames 41 and spaced apart along the conveying direction. These support columns 51 are alternately arranged with the conveying rollers 42, ensuring no interference with feeding. A support plate 52 is provided at the top of each support column 51. The support plate 52 supports the metal strip and has a V-shaped longitudinal section. The support assembly 5 provides support for the metal strip, preventing it from sagging during feeding. The V-shaped support plate 52 better conforms to the metal strip, reducing friction.
[0025] Specifically, the clamping transmission component 33 and the feeding transmission component 43 are existing technologies and can be belts and pulleys, which will not be limited or described in detail here.
[0026] A PLC controller is installed on the workbench 1. The output of the PLC controller is connected to the controlled terminals of the lifting drive assembly 2, the clamping drive assembly 3, and the feeding drive assembly 4, respectively. Specifically, it is connected to the controlled terminals of the lifting drive cylinder 21, the clamping drive motor 34, and the feeding drive motor 44. The PLC controller enables automatic control of the entire mechanism.
[0027] In use, the metal strip is placed on the upper support plate 52 of the support assembly 5. The PLC controller controls the lifting drive assembly 2 to adjust the height of the worktable 1, positioning the metal strip in a suitable feeding position. Then, the clamping drive motor 34 is started, which drives the two positive and negative lead screws 31 to rotate through the clamping transmission component 33, thus clamping the metal strip with the feeding drive assembly 4. Next, the feeding drive motor 44 is started, which drives the conveying roller 42 to rotate through the feeding transmission component 43, conveying the metal strip to the subsequent processing steps in preparation for the production of U-shaped buckles. During the feeding process, the support assembly 5 provides support for the metal strip, ensuring smooth feeding.
Claims
1. A feeding mechanism for producing U-shaped buckles, comprising a worktable (1), characterized in that: The bottom of the workbench (1) is provided with a lifting drive assembly (2) for driving the workbench (1) to rise and fall; the upper surface of the workbench (1) is provided with a clamping drive assembly (3), and the clamping drive assembly (3) is provided with a feeding drive assembly (4) for feeding the metal strip material for producing U-shaped buckles; the workbench (1) is also provided with a support assembly (5) for holding the metal strip material; the controlled ends of the lifting drive assembly (2), clamping drive assembly (3) and feeding drive assembly (4) are connected to a PLC controller provided on the workbench (1).
2. The feeding mechanism for producing U-shaped buckles according to claim 1, characterized in that: The lifting drive assembly (2) includes four synchronously moving lifting drive cylinders (21) set at the four corners of the bottom of the workbench (1). The controlled end of the lifting drive cylinder (21) is connected to the output end of the PLC controller.
3. The feeding mechanism for producing U-shaped buckles according to claim 1, characterized in that: The clamping drive assembly (3) includes two positive and negative lead screws (31) that are horizontally rotatably mounted on the worktable (1). The two positive and negative lead screws (31) are spaced apart along the feeding direction and perpendicular to the feeding direction. One end of one positive and negative lead screw (31) is connected to a clamping drive motor (34) and is connected to the same side end of the other positive and negative lead screw (31) through a clamping transmission component (33). The controlled end of the clamping drive motor (34) is connected to the output end of the PLC controller.
4. The feeding mechanism for producing U-shaped buckles according to claim 3, characterized in that: The feeding drive assembly (4) includes two mounting frames (41) respectively arranged along the conveying direction. The two mounting frames (41) are arranged opposite each other and are respectively connected to the screw nuts (32) arranged on the same side of the two positive and negative screws (31). Several conveying rollers (42) are longitudinally driven on the mounting frame (41). The several conveying rollers (42) are spaced apart along the conveying direction, and the several conveying rollers (42) are connected to each other through a feeding transmission component (43). The feeding transmission component (43) is connected to a feeding drive motor (44) arranged on the mounting frame (41) for driving the conveying rollers (42) to rotate by driving the feeding transmission component (43) to realize feeding. The controlled end of the feeding drive motor (44) is connected to the output end of the PLC controller.
5. A feeding mechanism for producing U-shaped buckles according to claim 4, characterized in that: The support assembly (5) includes several support columns (51) located between two mounting frames (41) and spaced apart along the conveying direction, and several support columns (51) are alternately arranged with conveying rollers (42); the top of the support column (51) is provided with a support plate (52) for supporting metal strips, and the longitudinal section of the support plate (52) is V-shaped.