Serging unit of serging machine capable of being quickly disassembled and assembled

The modular design of the overlock machine's overlock unit, employing a radial assembly structure, solves the problem of disassembling the drive motor and reducer required in existing overlock units. This enables rapid assembly and disassembly, high-precision overlocking, and improves the equipment's service life and work efficiency.

CN224157687UActive Publication Date: 2026-04-24HEILONGJIANG JUNZE ECONOMIC & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG JUNZE ECONOMIC & TRADE CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing overlocking machine has an integral overlocking unit, which requires disassembling the drive motor and reducer for adjustment. This operation is complicated and time-consuming, affecting the overlocking accuracy and service life of the equipment.

Method used

The overlock machine unit adopts a modular design and uses a radial assembly structure, including a rectangular support plate, support column, drive gear and driven gear, to achieve quick assembly and disassembly, avoiding the need to disassemble the drive motor and reducer.

Benefits of technology

It improves the accuracy of the seam locking and extends the service life of the equipment, simplifies the layout adjustment of the seam locking unit, reduces spare parts costs, and enhances the overall structural rigidity and transmission stability.

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Abstract

The utility model provides an overlock unit of an overlock machine capable of being quickly disassembled and assembled, and belongs to the technical field of gabion box production equipment. The problems that when a traditional overlock unit is of an integrated structure and disassembled, a driving motor and a speed reducer need to be disassembled firstly, operation is complex and time-consuming, and the overlock precision of equipment is affected are solved. The device comprises a pair of rectangular supporting plates, a plurality of supporting columns, a driving gear and a driven gear, the driving gear is meshed with the driven gear, and the driving gear and the driven gear are both installed on the pair of rectangular supporting plates and can relatively rotate on the rectangular supporting plates; a first shaft hole is formed in the middle of the driving gear and is in key connection with an external output shaft, annular bosses are arranged on the two axial sides of the driving gear, and the driving gear is formed by splicing two semicircular gears. The driven gear is provided with a first similar-fan-shaped notch used for edge locking, and circular bosses are arranged on the two axial sides of the driven gear. The pair of rectangular supporting plates is of an assembled structure so that the output shaft and the supporting shaft can penetrate through the rectangular supporting plates. The device is mainly used for the gabion box overlock procedure.
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Description

Technical Field

[0001] This utility model belongs to the technical field of gabion production equipment, and in particular relates to a locking edge unit of a locking edge machine that can be quickly assembled and disassembled. Background Technology

[0002] Gabion mesh is a mesh box structure woven from high-strength metal wire and filled with natural stones or artificial materials. With its unique engineering characteristics and eco-friendly advantages, it is widely used in civil engineering, ecological governance and disaster prevention. Its application scenarios cover multiple industries such as water conservancy, transportation, environmental protection and landscape. At present, the annual usage of gabion mesh in my country is about 120 million square meters, and the market demand is huge.

[0003] Most existing overlocking machines use an integral overlocking unit structure, with multiple overlocking units strung together at equal intervals on a motor-driven drive shaft. When it is necessary to adjust the spacing and number of overlocking units to overlock mesh of different sizes, the drive motor and reducer need to be disassembled, and the overlocking units need to be axially inserted or removed from the end of the drive shaft. This operation is complex and time-consuming. Frequent disassembly of the drive shaft causes deviations in the coaxiality between the equipment, affecting the overlocking accuracy and service life of the equipment. Utility Model Content

[0004] In view of this, to solve the problem that traditional overlocking units are integral structures that need to be axially mounted on the drive shaft, and that adjusting the overlocking unit arrangement to overlock mesh of different sizes requires disassembling the drive motor and reducer, which is complex, time-consuming, and affects the overlocking accuracy and service life of the equipment. This utility model proposes an overlocking unit for an overlocking machine that can be quickly disassembled and assembled. The overlocking unit is modularly designed, with most components being assembled from parts. The overall structure can be disassembled and assembled radially from the drive shaft, eliminating the need to disassemble the drive motor and reducer during the adjustment of the overlocking unit layout.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fast-disassembly and fastening unit for a fastening machine, comprising a pair of rectangular support plates, multiple support columns, a drive gear and a driven gear, wherein the drive gear and the driven gear mesh with each other, the multiple support columns are located in the middle of the pair of rectangular support plates and are perpendicular to the surface of the rectangular support plates, the two ends of the multiple support columns are detachably connected to the pair of rectangular support plates, and the drive gear and the driven gear are both mounted on the pair of rectangular support plates and can rotate relative to each other on the rectangular support plates;

[0006] The drive gear has a shaft hole in the middle that is keyed to the external output shaft, and has annular bosses on both sides of the axial direction. The drive gear is composed of two semi-circular gears assembled together.

[0007] The driven gear has a fan-shaped notch for locking the edge, and circular bosses on both sides of the axial direction;

[0008] The pair of rectangular support plates are assembled to accommodate the passage of the output shaft and support shaft.

[0009] Furthermore, the rectangular support plate has a gear mounting hole one, a gear mounting hole two, two shaft holes two, and a fan-shaped notch two. The gear mounting hole one is located at the bottom of the rectangular support plate, the gear mounting hole two is located in the middle of the rectangular support plate and near the side edge of the rectangular support plate, and the two shaft holes two are located at the top of the rectangular support plate and are at the same horizontal height. The gear mounting hole one mates with an annular boss, the gear mounting hole two mates with a circular boss, the shaft holes two are used to connect with an external support shaft, and the fan-shaped notch two holds the rectangular support plate in place. The side edge of the plate is connected to the gear mounting hole 2. The rectangular support plate is an assembled structure composed of multiple plates. The rectangular support plate includes multiple assembly lines. The multiple assembly lines are arranged around the gear mounting hole 1, the gear mounting hole 2 and the two shaft holes 2, with one end connected to the gear mounting hole 1 or the gear mounting hole 2 or the shaft hole 2, and the other end extending to the edge of the rectangular support plate or the gear mounting hole 1 or the gear mounting hole 2 or the shaft hole 2. The area of ​​the decomposed circular hole area in the multiple plates does not exceed 50% of the area of ​​the corresponding complete circular hole.

[0010] Furthermore, the rectangular support plate comprises five types of plates.

[0011] Furthermore, the assembly line includes a quadrilateral outline formed by the centers of gear mounting hole one, gear mounting hole two, and two shaft holes two; a perpendicular line segment drawn from the center of gear mounting hole one to the bottom edge of the rectangular support plate; and perpendicular line segments drawn from the centers of the two shaft holes two to the sides of the adjacent rectangular support plates. Multiple connecting columns are strung between the plates on both sides of the splicing surface corresponding to the quadrilateral outline, and the connecting columns are perpendicular to the corresponding splicing surface. The plates on both sides of the perpendicular line segment are connected and fixed by strip plates.

[0012] Furthermore, it also includes a driven gear pressure plate, which is located on both sides of the driven gear along the axial direction and connected to a rectangular support plate. The driven gear pressure plate is provided with a fan-shaped notch.

[0013] Furthermore, the support column and the rectangular support plate, the strip plate and the plate, and the driven gear pressure plate and the rectangular support plate are all connected by bolts.

[0014] Furthermore, there are four support columns.

[0015] Furthermore, a bushing is provided inside the second shaft hole. The bushing is composed of two semi-cylinders assembled together, and the two ends are connected by a pair of snap rings (18).

[0016] An installation method for the aforementioned quick-assembly and disassembly locking unit of a locking machine includes the following steps;

[0017] S1. Assemble two semi-circular gears radially from the external output shaft to form a driving gear and connect it to the external output shaft via a key. Assemble various plates around the annular boss on one side of the driving gear and the external support shaft to form a rectangular support plate on one side. Clamp and fix the driving gear circumferentially to the external output shaft and connect the rectangular support plate to the external support shaft.

[0018] S2. The driven gear is installed horizontally into the gear mounting hole two of the assembled rectangular support plate and meshes with the driving gear.

[0019] S3. Connect one end of multiple support columns to the assembled rectangular support plate, and assemble multiple plates into another rectangular support plate around the annular boss and external support shaft on the other side of the drive gear.

[0020] S4. Connect the other end of the multiple support columns to the rectangular support plate assembled later to complete the overall installation of the locking unit.

[0021] A method for disassembling the aforementioned fast-disassembly and detachable overlock machine overlock unit includes the following steps;

[0022] T1. Disconnect multiple support columns from the rectangular support plate on the same side, and disassemble the rectangular support plate on that side into multiple sections and remove them.

[0023] T2. Disconnect multiple support columns from the remaining rectangular support plate on one side and remove them all;

[0024] T3. Remove the driven gear horizontally;

[0025] T4. Disassemble the remaining rectangular support plate into multiple sections and remove them. Also, remove the two semi-circular gears of the drive gear from the radial direction of the external output shaft to complete the overall disassembly of the locking unit.

[0026] Compared with the prior art, the advantages of the quick-assembly and disassembly locking unit of the locking machine described in this utility model are:

[0027] 1. The overall structure of this utility model is an assembly structure, which is assembled radially with the output shaft of the edge-locking machine. When it is necessary to adjust the number and spacing of the edge-locking units to edge gabion mesh of different specifications, there is no need to disassemble the drive motor and reducer, which ensures the coaxiality between the equipment and improves the edge-locking accuracy and equipment life.

[0028] 2. Compared with the traditional axial assembly structure, the radial assembly structure of this utility model is easier to assemble and disassemble, and can quickly complete the layout adjustment of the locking unit of the locking machine, thus improving work efficiency.

[0029] 3. The adjacent plates inside this utility model are connected by connecting columns, which improves the rigidity of the overall structure.

[0030] 4. This utility model is equipped with a driven gear pressure plate to ensure the transmission stability between gears. The driven gear pressure plate is fixed on different plates on the rectangular support plate, which also improves the rigidity of the overall structure.

[0031] 5. This utility model adopts a modular design, which reduces the cost of spare parts. Attached Figure Description

[0032] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0033] Figure 1 This is a structural schematic diagram of a quick-assembly and disassembly locking unit for a locking machine according to the present invention;

[0034] Figure 2 This is a cross-sectional view of a quick-assembly and disassembly overlock machine unit according to the present invention.

[0035] Figure 3 This is a schematic diagram of the structure of the drive gear described in this utility model;

[0036] Figure 4 This is a schematic diagram of the driven gear described in this utility model;

[0037] Figure 5 This is a front view of the rectangular support plate described in this utility model;

[0038] Figure 6 This is an exploded view of the rectangular support plate described in this utility model;

[0039] Figure 7 This is a schematic diagram of the driven gear pressure plate of the present invention;

[0040] Figure 8 This is an exploded view of the bushing described in this utility model;

[0041] Figure 9 This is an exploded view of a quick-assembly and disassembly lock seam unit of a lock seam machine according to the present invention.

[0042] Figure 10 A schematic diagram of the locking unit mounted on the output shaft and the support shaft;

[0043] In the diagram: 1-Rectangular support plate; 2-Support column; 3-Driving gear; 4-Driven gear;

[0044] 11-Gear mounting hole one; 12-Gear mounting hole two; 13-Shaft hole two; 14-Sector-shaped notch two; 15-Connecting post; 16-Strip plate; 17-Sector-shaped notch three; 18-Snap ring; 31-Shaft hole one; 32-Annular boss; 41-Sector-shaped notch one; 42-Circular boss; A-Output shaft; B-Support shaft. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0046] I. Detailed Implementation Method 1, see [link / reference] Figure 1-10 This embodiment describes a quick-assembly and disassembly overlock machine unit, comprising a pair of rectangular support plates 1, multiple support columns 2, a drive gear 3, and a driven gear 4. The drive gear 3 and the driven gear 4 mesh with each other. The multiple support columns 2 are located between the pair of rectangular support plates 1 and are perpendicular to the surface of the rectangular support plates 1. The two ends of the multiple support columns 2 are detachably connected to the pair of rectangular support plates 1. The support columns 2 connect and fix the pair of rectangular support plates 1, enhancing the overall structural rigidity. The drive gear 3 and the driven gear 4 are both mounted on the pair of rectangular support plates 1 and can rotate relative to each other on the rectangular support plates 1.

[0047] The drive gear 3 has a shaft hole 31 in the middle for key connection with the external output shaft, and annular bosses 32 on both sides of the axial direction. The drive gear 3 is composed of two semi-circular gears assembled together.

[0048] The driven gear 4 is provided with a fan-shaped notch 41 for locking the edge, and circular bosses 42 are provided on both sides of the axial direction.

[0049] The pair of rectangular support plates 1 form an assembly mechanism to accommodate the passage of the output shaft and the support shaft.

[0050] The rectangular support plate 1 has a gear mounting hole 11, a gear mounting hole 12, two shaft holes 13, and a fan-shaped notch 14. The gear mounting hole 11 is located at the lower part of the rectangular support plate 1, the gear mounting hole 12 is located in the middle of the rectangular support plate 1 and close to the side edge of the rectangular support plate 1, and the two shaft holes 13 are located at the upper part of the rectangular support plate 1 and are at the same horizontal height. The gear mounting hole 11 mates with the annular boss 32, the gear mounting hole 12 mates with the circular boss 42, the shaft holes 13 are used to connect with the external support shaft, and the fan-shaped notch 14 connects the side edge of the rectangular support plate 1 with the gear. The mounting hole 12 is connected. The rectangular support plate 1 is an assembly structure composed of multiple panels. The rectangular support plate 1 includes multiple assembly lines. These assembly lines are arranged around the gear mounting hole 11, the gear mounting hole 12, and the two shaft holes 13. One end of each assembly line is connected to the gear mounting hole 11, the gear mounting hole 12, or the shaft hole 13, and the other end extends to the edge of the rectangular support plate 1 or the gear mounting hole 11, the gear mounting hole 12, or the shaft hole 13. The area of ​​the circular hole area retained in the multiple panels does not exceed 50% of the complete area of ​​the corresponding circular hole, so as to ensure that the corresponding panels can be assembled radially on the corresponding shaft.

[0051] The rectangular support plate 1 comprises five types of plates.

[0052] See attached document Figure 10 The traditional edge-locking machine has a structure where multiple edge-locking units are mounted on one output shaft A and two support shafts B. Traditionally, these units are integral and need to be axially mounted onto the output shaft A and support shafts B. When adjusting the number and spacing of the edge-locking units to edge different sizes of gabion mesh, it is necessary to first disassemble the drive motor, reducer, and support device at the end of the output shaft A, exposing the ends of the output shaft A and support shafts B before axial disassembly of the edge-locking units. This invention features a modular design for the edge-locking units, employing a drive-free disassembly and assembly method. When adjusting the layout of the edge-locking units, quick disassembly and assembly are performed radially from the output shaft A and support shafts B, preserving the original positions of the drive motor and reducer, avoiding coaxiality deviations, and improving equipment lifespan. The modular design supports multiple size combinations, adapting to different mesh specifications and reducing spare parts costs. This invention can also adopt a double-layer, inlaid structure, with snap-fit ​​components for easy assembly and disassembly.

[0053] The assembly line includes a quadrilateral outline formed by the centers of gear mounting hole 11, gear mounting hole 12, and two shaft holes 13; a perpendicular line segment drawn from the center of gear mounting hole 11 to the bottom edge of the rectangular support plate 1; and perpendicular line segments drawn from the centers of the two shaft holes 13 to the sides of the adjacent rectangular support plate 1. Multiple connecting posts 15 are strung between the plates on both sides of the splicing surface corresponding to the quadrilateral outline. The connecting posts 15 are perpendicular to the corresponding splicing surface. The plates on both sides of the perpendicular line segments are connected and fixed by strip plates 16. This invention, with connecting posts 15, improves the assembly accuracy between adjacent plates while also increasing the rigidity of the overall structure.

[0054] It also includes a driven gear pressure plate, which is located on both sides of the driven gear 4 along the axial direction and connected to the rectangular support plate 1. The driven gear pressure plate has a fan-shaped notch 17. The driven gear pressure plate tightly presses the driving gear 3 and the driven gear 4 together, avoiding meshing deviation caused by vibration during transmission, ensuring no gaps on the meshing surface, and guaranteeing the accuracy of gear transmission.

[0055] The support column 2 is connected to the rectangular support plate 1, the strip plate 16 is connected to the plate, and the driven gear pressure plate is connected to the rectangular support plate 1 using bolts. The bolted connection can be disassembled and reused multiple times, is stable and reliable, and is easy to disassemble.

[0056] There are four support columns 2.

[0057] A bushing is provided inside the second shaft hole 13. The bushing is composed of two semi-cylinders assembled together, and the two ends are connected by a pair of retaining springs 18. By installing and fixing the bushing to the external support shaft, the position of the shaft can be precisely controlled, the assembly accuracy can be improved, and radial offset can be avoided.

[0058] An installation method for the aforementioned quick-assembly and disassembly locking unit of a locking machine includes the following steps;

[0059] S1. Assemble two semi-circular gears radially from the external output shaft to form a driving gear 3 and connect it to the external output shaft via a key. Assemble various plates around the annular boss 32 on one side of the driving gear 3 and the external support shaft to form a rectangular support plate 1 on one side. Clamp and fix the driving gear 3 circumferentially to the external output shaft and connect the rectangular support plate 1 to the external support shaft.

[0060] S2. The driven gear 4 is installed horizontally into the gear mounting hole 12 of the assembled rectangular support plate 1 and meshes with the driving gear 3.

[0061] S3. Connect one end of multiple support columns 2 to the assembled rectangular support plate 1, and assemble multiple plates to form another rectangular support plate 1 around the annular boss 32 on the other side of the drive gear 3 and the external support shaft.

[0062] S4. Connect the other end of the multiple support columns 2 to the rectangular support plate 1 assembled later to complete the overall installation of the locking unit.

[0063] A method for disassembling the aforementioned quick-release and detachable overlock machine overlock unit includes the following steps;

[0064] T1. Disconnect multiple support columns 2 from the rectangular support plate 1 on the same side, and disassemble the rectangular support plate 1 on that side into multiple panels and remove them.

[0065] T2. Disconnect the multiple support columns 2 from the remaining rectangular support plate 1 on one side, and remove them all;

[0066] T3, remove the driven gear 4 from the horizontal direction;

[0067] T4. Disassemble the remaining rectangular support plate 1 into multiple sections and remove them. Also, remove the two semi-circular gears of the drive gear 3 from the radial direction of the external output shaft to complete the overall disassembly of the locking unit.

[0068] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A quick-assembly and disassembly locking unit for a locking machine, characterized in that: It includes a pair of rectangular support plates (1), multiple support columns (2), a driving gear (3) and a driven gear (4). The driving gear (3) and the driven gear (4) mesh with each other. The multiple support columns (2) are located in the middle of the pair of rectangular support plates (1) and are perpendicular to the plate surface of the rectangular support plates (1). The two ends of the multiple support columns (2) are detachably connected to the pair of rectangular support plates (1). The driving gear (3) and the driven gear (4) are both mounted on the pair of rectangular support plates (1) and can rotate relative to each other on the rectangular support plates (1). The drive gear (3) has a shaft hole (31) in the middle for key connection with the external output shaft, and annular bosses (32) on both sides of the axial direction. The drive gear (3) is composed of two semi-circular gears assembled together. The driven gear (4) has a fan-shaped notch (41) for locking the edge, and circular bosses (42) are provided on both sides of the axial direction; The pair of rectangular support plates (1) are assembled to accommodate the passage of the output shaft and the support shaft.

2. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 1, characterized in that: The rectangular support plate (1) has a gear mounting hole 1 (11), a gear mounting hole 2 (12), two shaft holes 2 (13), and a fan-shaped notch 2 (14) on its surface. The gear mounting hole 1 (11) is located at the lower part of the rectangular support plate (1), the gear mounting hole 2 (12) is located at the middle part of the rectangular support plate (1) and close to the side edge of the rectangular support plate (1), and the two shaft holes 2 (13) are located at the upper part of the rectangular support plate (1) and are at the same horizontal height. The gear mounting hole 1 (11) cooperates with the annular boss (32), the gear mounting hole 2 (12) cooperates with the circular boss (42), and the shaft hole 2 (13) is used to connect with the external... The support shaft is connected, and the fan-shaped notch 2 (14) connects the side edge of the rectangular support plate (1) to the gear mounting hole 2 (12). The rectangular support plate (1) is an assembly structure composed of various panels. The rectangular support plate (1) includes multiple assembly lines. The multiple assembly lines are arranged around the gear mounting hole 1 (11), the gear mounting hole 2 (12) and two shaft holes 2 (13), and one end is connected to the gear mounting hole 1 (11) or the gear mounting hole 2 (12) or the shaft hole 2 (13). The other end extends to the edge of the rectangular support plate (1) or the gear mounting hole 1 (11) or the gear mounting hole 2 (12) or the shaft hole 2 (13).

3. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 2, characterized in that: The rectangular support plate (1) comprises five types of plates.

4. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 3, characterized in that: The assembly line includes a quadrilateral outline formed by the centers of gear mounting hole one (11), gear mounting hole two (12) and two shaft holes two (13), a perpendicular line segment drawn from the center of gear mounting hole one (11) to the bottom edge of the rectangular support plate (1), and perpendicular line segments drawn from the centers of the two shaft holes two (13) to the sides of the adjacent rectangular support plate (1). Multiple connecting columns (15) are strung between the plates on both sides of the splicing surface corresponding to the quadrilateral outline. The connecting columns (15) are perpendicular to the corresponding splicing surface. The plates on both sides of the perpendicular line segment are connected and fixed by strip plates (16).

5. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 1, characterized in that: It also includes a driven gear pressure plate, which is located on both sides of the driven gear (4) along the axial direction and connected to a rectangular support plate (1). The driven gear pressure plate is provided with a fan-shaped notch three (17).

6. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 1, characterized in that: The support column (2) and the rectangular support plate (1), the strip plate (16) and the plate, and the driven gear pressure plate and the rectangular support plate (1) are all connected by bolts.

7. The overlocking unit of an overlocking machine that can be quickly assembled and disassembled according to claim 1, characterized in that: There are four support columns (2).

8. A quick-assembly and disassembly locking unit for a locking machine according to claim 2, characterized in that: The shaft hole 2 (13) is provided with a bushing, which is composed of two semi-cylinders assembled together and connected at both ends by a pair of snap rings (18).