O-shaped chain forming mechanism

By designing an O-chain forming mechanism and adopting an automated production method using bevel gears and racks, cylinders, and cutting blades, the problems of low efficiency and unstable quality of manual operation were solved, and efficient and stable O-chain production was achieved.

CN224333327UActive Publication Date: 2026-06-09JIANGXI SHARON IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI SHARON IND CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing O-chain forming process suffers from problems such as low efficiency of manual operation, unstable quality, high labor intensity, and high cost, and the existing technology cannot meet market demand.

Method used

An O-chain forming mechanism was designed, including forming, cutting and clamping mechanisms. It utilizes bevel gear and rack transmission, cylinder and cutting blade for automated production, realizing the forming, cutting and connecting of straight steel wires.

Benefits of technology

It improved production efficiency and quality, ensured the precision and consistency of molding, and reduced the intensity and cost of manual operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224333327U_ABST
    Figure CN224333327U_ABST
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Abstract

The utility model discloses a kind of O letter chain forming mechanisms, including forming mechanism, driving mechanism, cutting mechanism, clamping mechanism, rack, the forming mechanism, driving mechanism, cutting mechanism, clamping mechanism are all arranged on the rack, the driving mechanism is to drive the forming mechanism rotation, the forming mechanism is to be shaped into O letter circle with straight running steel wire, the cutting mechanism is to cut the O letter circle shaped by the forming mechanism into several O letter circles, the clamping mechanism is to connect several O letter circles into O letter chain.The utility model provides a kind of O letter chain forming mechanism, can realize the function of straight running steel wire automatic shaping, cutting, connection into O letter chain, improve production efficiency and quality, and transmission mode of bevel gear and rack is adopted, so that forming mechanism can realize stable, uniform, continuous rotation, guarantee the precision and consistency of shaping.
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Description

Technical Field

[0001] This utility model relates to the field of O-chain technology, specifically to an O-chain forming mechanism. Background Technology

[0002] The O-chain is a type of chain-making device, named for the fact that each small link resembles the letter O. O-chains are simple, stylish, sturdy, and can be paired with various pendants. They are also easy to repair and have high sales volume.

[0003] Currently, O-chains on the market are often formed manually. This involves first manually shaping straight steel wire into several O-rings, then assembling these O-rings to form the O-chain keychain. This method has the following drawbacks:

[0004] Manual operation is inefficient and slow, and cannot meet market demand.

[0005] Manual operation results in inconsistent quality and is prone to defects such as chain breakage, misalignment, and scratches.

[0006] Manual operations are physically demanding and can easily cause fatigue and injury to workers;

[0007] High manual operation costs increase production expenses. Utility Model Content

[0008] The purpose of this utility model is to solve the above-mentioned technical problems and thus provide an O-chain forming mechanism;

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0010] This utility model provides an O-chain forming mechanism.

[0011] The device includes a forming mechanism, a driving mechanism, a cutting mechanism, a clamping mechanism, and a frame. The forming mechanism, driving mechanism, cutting mechanism, and clamping mechanism are all mounted on the frame. The driving mechanism drives the forming mechanism to rotate. The forming mechanism forms straight steel wire into O-rings. The cutting mechanism cuts the O-rings formed by the forming mechanism into several O-rings. The clamping mechanism connects several O-rings into an O-chain.

[0012] Optionally, the driving mechanism includes an active mechanism and a driven mechanism. The active mechanism rotates to drive the driven mechanism to rotate. The active mechanism includes a motor, a transmission shaft, a first gear, and a second gear. The motor is mounted on the base frame, and the transmission shaft is connected to the output shaft of the motor. Both the first gear and the second gear are mounted on the transmission shaft. The driven mechanism includes a connecting shaft, a connecting rod, and a bevel gear. The bevel gear is mounted on the connecting shaft and meshes with the second gear. The connecting shaft is connected to one end of the rack via the connecting rod.

[0013] The forming mechanism includes a rack, a rotating shaft, a third gear, a forming plate, and a forming wheel. The third gear is mounted on the rotating shaft, and the rack is mounted below the third gear. The rack is meshed with the third gear. The forming plate is located on one side of the output end of the rotating shaft, and the forming wheel is located on the forming plate. The forming wheel is used to form a straight steel wire into an annular O-ring.

[0014] Optionally, the cutting mechanism includes a cutting blade, a fixing block, and a cylinder. The fixing block is mounted on the frame, and the cylinder is mounted on the side wall of the fixing block. The output shaft of the cylinder passes through the side wall of the fixing block and is connected to the cutting blade. The cylinder is used to drive the extension and retraction of the cutting blade, thereby cutting a single set of annular O-rings formed by the forming wheel.

[0015] Optionally, a fixed frame is provided on the frame, and a bearing is provided inside the fixed frame. The rotating shaft is mounted on the frame via the bearing, and the bearing is used for the rotation of the rotating shaft.

[0016] Optionally, the clamping mechanism grips several sets of annular O-rings one by one to form an O-chain. When the clamping mechanism grips the next set of annular O-rings, the opening of the annular O-ring on the clamping mechanism faces the next set of annular O-rings. During the gripping process, the opening of the annular O-ring on the clamping mechanism is fitted onto the side wall of the next set of annular O-rings. After the gripping is completed, the clamping mechanism rotates again, so that the opening of the second gripped annular O-ring faces the output end of the rotating shaft. This process is repeated to form the O-chain.

[0017] Optionally, a collection device is also included, which is disposed on the rack for collecting the O-chain.

[0018] Optionally, the surface of the collecting device is provided with a protective layer for protecting the O-chain from falling in.

[0019] Beneficial effects of this utility model

[0020] This invention provides an O-chain forming mechanism that can automatically form, cut, and connect straight steel wires into an O-chain, thereby improving production efficiency and quality.

[0021] This invention employs a bevel gear and rack transmission method, enabling the molding mechanism to achieve stable, uniform, and continuous rotation, thus ensuring the precision and consistency of the molding process.

[0022] This invention employs a cylinder and cutting blade for cutting, enabling the cutting process to be carried out quickly, accurately, and smoothly, thus avoiding the problem of wire breakage or deformation.

[0023] This utility model adopts a connection method of grippers and gripper driving device, which makes the connection process flexible, simple and reliable, and realizes the connection of O-rings of different specifications and quantities. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a partial enlarged view of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1-frame, 2-forming mechanism, 3-cutting mechanism, 4-clamping mechanism, 5-driving mechanism, 6-driven mechanism, 7-drive shaft, 8-first gear, 9-second gear, 10-connecting shaft, 11-connecting rod, 12-bevel gear, 13-rack, 14-rotating shaft, 15-third gear, 16-cutting blade, 17-fixed block, 18-cylinder, 19-fixed frame. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example

[0029] like Figures 1-2 As shown, this utility model provides an O-chain forming mechanism.

[0030] The system includes a forming mechanism 2, a driving mechanism, a cutting mechanism 3, a clamping mechanism 4, and a frame 1. The forming mechanism 2, the driving mechanism, the cutting mechanism 3, and the clamping mechanism 4 are all mounted on the frame 1. The driving mechanism is used to drive the forming mechanism 2 to rotate. The forming mechanism 2 is used to form straight steel wire into O-rings. The cutting mechanism 3 is used to cut the O-rings formed by the forming mechanism 2 into several O-rings. The clamping mechanism 4 is used to connect several O-rings into an O-chain.

[0031] The O-chain forming mechanism 2 of this utility model mainly includes forming mechanism 2, driving mechanism, cutting mechanism 3, clamping mechanism 4, frame 1 and other components. The structure and function of each component are described in detail below.

[0032] Forming Mechanism 2: Forming mechanism 2 is used to form straight steel wire into annular O-rings, and includes components such as a rotating shaft 14, a forming plate, and a forming wheel. The rotating shaft 14 is mounted on the frame 1 via bearings, which are used for the rotation of the rotating shaft 14. The forming plate is located on one side of the output end of the rotating shaft 14, and the forming wheel is located on the forming plate. The forming wheel is used to form straight steel wire into annular O-rings. The forming plate is also provided with guide grooves to guide the straight steel wire into the forming wheel.

[0033] Drive Mechanism: The drive mechanism drives the forming mechanism 2 to rotate, and includes components such as the driving mechanism 5 and the driven mechanism 6. The rotation of the driving mechanism 5 drives the driven mechanism 6 to rotate. The driving mechanism 5 includes components such as a motor, a transmission shaft 7, a first gear 8, and a second gear 9. The motor is mounted on the base frame, and the transmission shaft 7 is connected to the output shaft of the motor. Both the first gear 8 and the second gear 9 are mounted on the transmission shaft 7. The driven mechanism 6 includes components such as a connecting shaft 10, a connecting rod 11, a bevel gear 12, a rack 13, and a third gear 15. The bevel gear 12 is mounted on the connecting shaft 10 and meshes with the second gear 9. The connecting shaft 10 is connected to one end of the rack 13 via the connecting rod 11. The third gear 15 is mounted on the rotating shaft 14, and the rack 13 is positioned below the third gear 15, meshing with the third gear 15. When the motor starts, the transmission shaft 7 drives the first gear 8 and the second gear 9 to rotate. The second gear 9 drives the bevel gear 12 to rotate. The bevel gear 12 drives the rack 13 to reciprocate through the connecting rod 11. The rack 13 drives the third gear 15 to rotate. The third gear 15 drives the rotating shaft 14 and the forming plate to rotate.

[0034] Cutting Mechanism 3: The cutting mechanism 3 is used to cut the O-rings formed by the forming mechanism 2 into several O-rings. It includes components such as a cutting blade 16, a fixing block 17, and a cylinder 18. The fixing block 17 is mounted on the frame 1, and the cylinder 18 is mounted on the side wall of the fixing block 17. The output shaft of the cylinder 18 passes through the side wall of the fixing block 17 and is connected to the cutting blade 16. The cylinder 18 is used to drive the extension and retraction of the cutting blade 16, thereby cutting the single set of annular O-rings formed by the forming mechanism 2. When the cylinder 18 extends, the cutting blade 16 moves downward, cutting an opening on one side of the annular O-ring; when the cylinder 18 retracts, the cutting blade 16 moves upward, cutting an opening on the other side of the annular O-ring. This results in an O-ring with two openings.

[0035] Clamping Mechanism 4: Clamping mechanism 4 is used to connect several O-rings into an O-chain, and includes grippers, gripper supports, and gripper drive components. The gripper supports are mounted on the frame 1, and the gripper drive components are mounted on the gripper supports. The gripper drive components are used to drive the opening, closing, and rotation of the grippers. The grippers are located at the output end of the gripper drive components, and the grippers are used to grasp the O-rings. The clamping mechanism 4 grips several sets of O-rings one by one to form an O-chain. Its working principle is as follows: First, the clamping mechanism 4 grips the first set of O-rings, with its opening facing the output end of the rotating shaft 14. Then, the clamping mechanism 4 rotates 90 degrees, so that the opening of the first set of O-rings faces the next set. Next, the clamping mechanism 4 grips the second set of O-rings, with its opening facing the output end of the rotating shaft 14. Simultaneously, the opening of the first set of O-rings fits onto the side wall of the second set, thus connecting the two sets of O-rings. Finally, the clamping mechanism 4 rotates 90 degrees again, so that the opening of the second set of O-rings faces the next set. These steps are repeated until all the O-rings are gripped, thus forming an O-chain.

[0036] Collection device: The collection device is mounted on frame 1 and is used to collect O-chains. The surface of the collection device is provided with a protective layer to protect the O-chains from falling in. The collection device can be a box, a basket, a bag, or any object capable of holding the O-chains.

[0037] A fixed frame 19 is provided on the frame 1, and a bearing is provided inside the fixed frame 19. The rotating shaft 14 is mounted on the frame 1 via the bearing, and the bearing is used for the rotation of the rotating shaft 14.

[0038] The beneficial effects of this utility model are:

[0039] This invention provides an O-chain forming mechanism that can automatically form, cut, and connect straight steel wires into an O-chain, thereby improving production efficiency and quality.

[0040] This utility model adopts a transmission method of bevel gear 12 and rack 13, which enables the molding mechanism 2 to achieve stable, uniform and continuous rotation, ensuring the molding accuracy and consistency.

[0041] This utility model adopts a cutting method using a cylinder 18 and a cutting blade 16, which enables the cutting process to be carried out quickly, accurately, and smoothly, avoiding the problem of wire breakage or deformation.

[0042] This utility model adopts a connection method of grippers and gripper driving device, which makes the connection process flexible, simple and reliable, and realizes the connection of O-rings of different specifications and quantities.

[0043] This invention also includes a collection device and a protective layer, which enable the collection process to be carried out safely, conveniently, and neatly, protecting the integrity and aesthetics of the finished product.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An O-chain forming mechanism, characterized in that, The device includes a forming mechanism, a driving mechanism, a cutting mechanism, a clamping mechanism, and a frame. The forming mechanism, driving mechanism, cutting mechanism, and clamping mechanism are all mounted on the frame. The driving mechanism drives the forming mechanism to rotate. The forming mechanism forms straight steel wire into O-rings. The cutting mechanism cuts the O-rings formed by the forming mechanism into several O-rings. The clamping mechanism connects several O-rings into an O-chain.

2. The O-chain forming mechanism according to claim 1, characterized in that, The driving mechanism includes an active mechanism and a driven mechanism; The forming mechanism includes a rack, a rotating shaft, a third gear, a forming plate, and a forming wheel; The rotation of the active mechanism drives the rotation of the driven mechanism. The active mechanism includes a motor, a transmission shaft, a first gear, and a second gear. The motor is mounted on the frame, and the transmission shaft is connected to the output shaft of the motor. Both the first gear and the second gear are mounted on the transmission shaft. The driven mechanism includes a connecting shaft, a connecting rod, and a bevel gear. The bevel gear is mounted on the connecting shaft and meshes with the second gear. The connecting shaft is connected to one end of the rack via the connecting rod. The rotating shaft is provided with the third gear, and the rack is provided below the third gear. The rack is meshed with the third gear. The forming plate is provided on one side of the output end of the rotating shaft, and the forming wheel is provided on the forming plate. The forming wheel is used to form the straight steel wire into an annular O-ring.

3. The O-chain forming mechanism according to claim 2, characterized in that, The cutting mechanism includes a cutting blade, a fixing block, and a cylinder. The fixing block is mounted on the frame, and the cylinder is mounted on the side wall of the fixing block. The output shaft of the cylinder passes through the side wall of the fixing block and is connected to the cutting blade. The cylinder is used to drive the extension and retraction of the cutting blade, thereby cutting a single set of annular O-rings formed by the forming wheel.

4. The O-chain forming mechanism according to claim 2, characterized in that, A fixed frame is provided on the frame, and a bearing is provided inside the fixed frame. The rotating shaft is mounted on the frame via the bearing, and the bearing is used for the rotation of the rotating shaft.

5. The O-chain forming mechanism according to claim 2, characterized in that, The clamping mechanism grips several sets of annular O-rings one by one to form an O-chain. When the clamping mechanism grips the next set of annular O-rings, the opening of the annular O-ring on the clamping mechanism faces the next set of annular O-rings. During the gripping process, the opening of the annular O-ring on the clamping mechanism is fitted onto the side wall of the next set of annular O-rings. After the gripping is completed, the clamping mechanism rotates again, so that the opening of the second gripped annular O-ring faces the output end of the rotating shaft. This process is repeated to form the O-chain.

6. The O-chain forming mechanism according to claim 1, characterized in that, It also includes a collection device, which is mounted on the rack, for collecting the O-chain.

7. The O-chain forming mechanism according to claim 6, characterized in that, The surface of the collecting device is provided with a protective layer, which is used to protect the O-chain that falls in.