Geometric chain link jewelry chain forming machine

Abstract

The invention relates to a geometric chain link jewelry chain forming machine which comprises a main machine frame, and the main machine frame is sequentially provided with a bobbin piece, a first chain piece, a second chain piece, a third chain piece, a fourth chain piece, a fifth chain piece and a sixth chain piece along a machining production line, and the bobbin piece is rotationally assembled at the first end of the machine frame through a bobbin support; the first punch forming mechanism is used for punching the metal wires into sheet-shaped metal wires and punching the sheet-shaped metal wires to remove the core parts of the geometric chain links; the feeding mechanism is used for conveying sheet-shaped metal wires; the second punch forming mechanism is used for punching the outer edge part, corresponding to the geometric chain link, of the sheet-shaped metal wire so as to form the geometric chain link, and the geometric chain link is provided with an assembling opening; the assembling mechanism is used for assembling two adjacent geometric chain links through the assembling opening to form a continuous jewelry chain; the welding mechanism is used for welding the assembly openings so as to fix the adjacent geometric chain links; and the driving mechanism at least comprises a driving shaft, and the driving shaft drives the first punch forming mechanism, the feeding mechanism, the assembling mechanism and the welding mechanism, so that automatic machining of the machining production line is achieved.

Description

Technical Field

[0001] This invention relates to the field of jewelry processing equipment technology, specifically to a geometric link jewelry chain forming machine. Background Technology

[0002] Geometric chain jewelry, as an important category in the jewelry market, is composed of multiple flat chain links that are nested and connected to each other, giving it a unique visual appeal and wearing characteristics.

[0003] In traditional manufacturing processes, the entire production process relies entirely on manual operation: First, operators must manually roll the metal wire into sheet metal strips of uniform thickness; then, the sheet metal is processed multiple times using step-by-step stamping dies, first stamping to remove the hollow area inside the link to form the core outline, and then stamping the geometry of the outer edge of the link separately; after completing the forming of a single link, workers must manually align and fit the assembly openings of adjacent links one by one; finally, each assembly opening is locally welded using spot welding equipment to achieve permanent fixation.

[0004] The aforementioned traditional manual operation mode has significant drawbacks: a lack of continuity between processes necessitates frequent tool changes and workpiece adjustments, resulting in a slow overall production pace; high levels of manual intervention make it difficult to control the dimensional accuracy of chain links, easily leading to quality problems such as uneven assembly gaps or welding defects; simultaneously, the high-intensity repetitive labor increases operator fatigue, further impacting product consistency and yield. With the continuous increase in consumer demand for jewelry chains, traditional methods face severe challenges in terms of production capacity, cost control, and quality stability, failing to meet the urgent demands of modern manufacturing for efficient, precise, and automated production.

[0005] To address this, we propose a geometric link jewelry chain forming machine. Summary of the Invention

[0006] This application provides a geometric link jewelry chain forming machine, which has the advantages of high efficiency, precision and automated production, significantly improving production efficiency, dimensional accuracy and yield, while reducing manual labor intensity and operational complexity.

[0007] In a first aspect, this application provides a geometric link jewelry chain forming machine, including a main frame, on which the following components are sequentially arranged along the processing line: A spool assembly, which is rotatably mounted to the first end of the frame via a spool bracket, and on which a metal wire is wound; A first stamping forming mechanism is used to stamp the metal wire into a sheet metal wire and to stamp the sheet metal wire to remove the core of the geometric links; A feeding mechanism for conveying the sheet-like metal wire; The second stamping forming mechanism is used to stamp the outer edge portion of the geometric link corresponding to the sheet metal wire to form the geometric link, the geometric link having an assembly opening; An assembly mechanism for assembling two adjacent geometric links through the assembly opening to form a continuous jewelry chain; A welding mechanism for welding the assembly opening to secure adjacent geometric links of the jewelry chain; In addition, a driving mechanism includes at least one driving shaft, which is rotatably mounted on the main frame and directly drives the first stamping mechanism, feeding mechanism, assembly mechanism and welding mechanism to realize automatic processing of the processing line.

[0008] Optionally, the first stamping mechanism includes: The first body is fixed to the main frame; The first cam is axially fixed on the drive shaft; The first drive arm has at least two arms. The first drive arm is 7-shaped and its middle part is rotatably mounted on the first body. Its first end is movably connected to the upper end of the first lifting rod, and the first lifting rod is rotatably mounted on the first body. Its second end is rotatably mounted with a first roller that matches and abuts against the first cam. The first stamping moving die is installed at the bottom end of the first lifting rod located upstream of the processing production line, and its lower end is matched with a first stamping fixed die that cooperates with the first stamping moving die to stamp the metal wire into sheet metal wire. The first stamping fixed die is fixed on the main frame. A stamping wheel is rolled and mounted on the bottom end of the first lifting rod located downstream of the processing line, and a core-removing mold is provided below it for stamping the sheet metal wire to remove the core of the geometric link.

[0009] Optionally, the core extraction mold includes: The core-taking mold is fixed on the main frame; The moving core-taking die has its upper end abutting against the stamping wheel, and its lower end is connected to the fixed core-taking die through a number of first elastic elements; The movable positioning pins are arranged symmetrically on both sides of the core-taking moving die. The core-taking fixed die has symmetrical positioning slots on both sides to accommodate the movement of the movable positioning pins and to position the stamping stroke of the core-taking moving die.

[0010] Optionally, the second stamping mechanism includes: The second body is fixed to the main frame; The second cam is axially fixed on the drive shaft; The second drive arm is 7-shaped and its middle part is rotatably mounted on the first body. Its first end is movably connected to the upper end of the second lifting rod, and the second lifting rod is vertically movably mounted on the second body. Its second end is movably sleeved on the second cam to drive the stamping seat to move vertically. The second stamping moving die is fixed to the lower end of the second lifting rod, and its lower end is matched with a second stamping fixed die that works with the second stamping moving die to stamp and remove the outer edge portion of the geometric link corresponding to the sheet metal wire in order to form the geometric link. The second stamping fixed die is fixed on the main frame.

[0011] Optionally, the second stamping mechanism further includes: The stamping positioning head has an inclined surface at its upper end, and the side wall of the second stamping moving die has a slope surface that matches the inclined surface, so as to press the stamping positioning head against and fix the sheet metal wire when the second stamping moving die moves downward. The movable rod has one end fixed to the stamping positioning head, and its middle part is rotatably mounted on a movable seat. The movable rod has a cam counterweight for resetting and flipping corresponding to its rotatable mounting position. The movable seat is fixed on the second stamping die.

[0012] Optionally, the feeding mechanism includes: Two delivery rods are symmetrically arranged between the first stamping forming mechanism and the second stamping forming mechanism, and their middle parts are horizontally rotatably mounted on the main frame via a rotating shaft; There are two feeding seats, which are movably mounted on the first end of the delivery rod and have a feeding groove matching the sheet metal wire in the middle of their upper ends. Two dovetail blocks are fixed to one end of the feeding seat, and their other ends are slidably fitted into the dovetail grooves opened on the first or second stamping die to limit the movement of the feeding seat along the conveying direction of the sheet metal wire. The second elastic element is of several kinds, and one end of it is connected to the feeding seat, and the other end is connected to the first stamping die or the second stamping die to provide the elastic restoring force of the feeding seat. There are two trigger rods, which are respectively fixed vertically to the lower side of the second end of the delivery rod, and a second roller is rotatably mounted on the bottom end of each rod. The trigger wheel is axially fixed to the drive shaft, and its side wall has a wavy wall that matches and abuts against the second roller to drive the delivery rod to rotate horizontally.

[0013] Optionally, the assembly mechanism includes: A gripping head, which is fixed to the free end of a robotic arm and can rotate 90° under the drive of the robotic arm to grip the geometric link; An assembly housing is fixed to the main frame, and the robotic arm is movably assembled inside the assembly housing; The third cam is axially fixed on the drive shaft; The cantilever has its middle section rotatably mounted on the assembly housing, and its first end is movably mounted to the robotic arm. Its second end is connected to the first end of a third drive arm via a universal joint. The middle section of the third drive arm is rotatably mounted on the main frame via a rotating shaft, and the second end of the third drive arm is rotatably mounted with a third roller that matches and abuts against the third cam.

[0014] Optionally, the welding mechanism includes: The welding head is located at the first end of the welding machine body; A welding housing is fixed to the main frame, and the welding machine body is movably assembled inside the welding housing; The fourth cam is axially fixed to the drive shaft; The fourth drive arm has its middle part rotatably mounted on the welding housing, and its first end is movably mounted to the welding machine body. Its second end is rotatably mounted with a third roller that matches and abuts against the third cam.

[0015] Optionally, a frame is fixed to the lower end of the main frame, and the frame is provided with a control panel electrically connected to the drive mechanism, assembly mechanism and welding mechanism.

[0016] Optionally, the drive mechanism further includes: A transmission wheel, which is axially fixed to one end of the drive shaft; A drive wheel, which is connected to the drive wheel via a transmission belt; A drive motor, the output end of which is fixed to the drive wheel, and which is fixed to the frame via a motor mount.

[0017] Optionally, a tensioning wheel is provided between the spool and the first stamping mechanism, and the tensioning wheel is rotatably mounted on the spool support via a tensioning wheel bracket.

[0018] Compared with related technologies, the geometric link jewelry chain forming machine provided in this application has at least the following technical advantages: By sequentially arranging the wire spool, first stamping forming mechanism, feeding mechanism, second stamping forming mechanism, assembly mechanism, welding mechanism, and drive mechanism along the processing line on the main frame, continuous automated processing of metal wire from stamping forming to assembly and welding is achieved. It has the advantages of high efficiency, precision, and automated production, significantly improving production efficiency, dimensional accuracy, and yield, while reducing manual labor intensity and operational complexity.

[0019] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0020] Figure 1 This is one of the schematic diagrams of a geometric link jewelry chain forming machine according to an exemplary embodiment.

[0021] Figure 2 This is a second schematic diagram of a geometric link jewelry chain forming machine according to an exemplary embodiment.

[0022] Figure 3 This is the third schematic diagram of a geometric link jewelry chain forming machine according to an exemplary embodiment.

[0023] Figure 4 This is a schematic diagram of a first stamping mechanism structure according to an exemplary embodiment.

[0024] Figure 5 This is a schematic diagram of a feeding mechanism structure according to an exemplary embodiment.

[0025] Figure 6 This is a schematic diagram of a second stamping mechanism structure according to an exemplary embodiment.

[0026] Figure 7 This is one of the schematic diagrams of the combined structure of the assembly mechanism and the welding mechanism according to an exemplary embodiment.

[0027] Figure 8 This is a second schematic diagram of the combined structure of the assembly mechanism and the welding mechanism according to an exemplary embodiment. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0029] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0030] First Embodiment Please see Figures 1 to 4 As shown, this is the first embodiment of the present invention. It should be noted that the accompanying drawings and the related quantities and shapes mentioned in this embodiment are only used to specifically illustrate the implementation of the present invention so as to facilitate understanding of the content of the present invention, and are not intended to limit the scope of protection of the present invention.

[0031] This invention provides a geometric link jewelry chain forming machine. Figure 1 This is one of the schematic diagrams of a geometric link jewelry chain forming machine according to an exemplary embodiment. Figure 2 This is a second schematic diagram of a geometric link jewelry chain forming machine according to an exemplary embodiment. Figure 3 This is the third schematic diagram of a geometric link jewelry chain forming machine according to an exemplary embodiment. Figures 1-3 As shown, the geometric link jewelry chain forming machine includes a main frame 101. In this embodiment, the processing line refers to the entire continuous processing flow from the input of metal wire to the output of the finished jewelry chain, wherein each mechanism operates sequentially in a specific order. The main frame 101 is provided with the following components along the processing line: A spool 203 is rotatably mounted to the first end of the frame 101 via a spool bracket 201, and a metal wire is wound on it; in this embodiment, a tensioning wheel 202 is also provided between the spool 203 and the first stamping forming mechanism 30, and the tensioning wheel 202 is rotatably mounted on the spool bracket 201 via a tensioning wheel bracket. The first stamping forming mechanism 30 is used to stamp the metal wire into a sheet metal wire and to stamp the sheet metal wire to remove the core of the geometric links; Feeding mechanism 40, which is used to convey the sheet metal wire; The second stamping forming mechanism 50 is used to stamp the outer edge portion of the geometric link corresponding to the sheet metal wire to form the geometric link, the geometric link having an assembly opening; Assembly mechanism 70, which is used to assemble two adjacent geometric links through the assembly opening to form a continuous jewelry chain; Welding mechanism 60, which is used to weld the assembled opening to fix adjacent geometric links of the jewelry chain; In addition, a drive mechanism 80 includes at least a drive shaft 801, which is rotatably mounted on the main frame 101 and directly drives the first stamping mechanism 30, the feeding mechanism 40, the assembly mechanism 70 and the welding mechanism 60 to realize automatic processing of the processing line.

[0032] In the above embodiment, the technical solution integrates multiple functional modules to achieve continuous processing from raw materials to finished jewelry chains. The main frame 101 is the foundational support structure of the entire forming machine, used to fix and support all functional mechanisms. The wire spool 203 is used to wind and store metal wire, which is the raw material for manufacturing geometric link jewelry chains and has a certain degree of ductility and metal strength. The first stamping forming mechanism 30 is responsible for the preliminary processing of the metal wire, including stamping it into sheet metal wire and further stamping to remove the core of the geometric link. The feeding mechanism 40 is used to accurately transfer the sheet metal wire between different processing mechanisms. The second stamping forming mechanism 50 is responsible for fine stamping the sheet metal wire to form individual geometric links and to give it an assembly opening for assembly. The assembly opening is a pre-reserved gap on the geometric link for connecting with other geometric links during assembly. The assembly mechanism 70 is responsible for connecting two adjacent geometric links through their assembly openings, thereby gradually forming a continuous jewelry chain. The welding mechanism 60 is used to weld the assembly openings between the assembled geometric links to permanently fix adjacent links. The drive mechanism 80 is the power source for the entire equipment. It coordinates and synchronizes the actions of various processing mechanisms through the drive shaft 801 to realize the automated operation of the entire processing production line.

[0033] In summary, the geometric link jewelry chain forming machine proposed in this application integrates a wire tube 203, a first stamping and forming mechanism 30, a feeding mechanism 40, a second stamping and forming mechanism 50, an assembly mechanism 70, and a welding mechanism 60 sequentially along the processing line on the main frame 101. Multiple key mechanisms are directly driven synchronously by the drive shaft 801 in the drive mechanism 80, achieving fully automated and continuous processing from raw metal wire to finished jewelry chains. This integrated and automated design fundamentally solves the problems of lengthy and complex processes and low production efficiency in traditional manual processing, enabling efficient, stable, and large-scale production of geometric link jewelry chains, demonstrating significant technological advancements.

[0034] In one possible design, Figure 4This is a schematic diagram of a first stamping mechanism structure according to an exemplary embodiment. (Refer to...) Figures 1-4 The first stamping forming mechanism 30 includes: The first body 301 is fixed on the main frame 101; The first cam 306 is axially fixed to the drive shaft 801; The first drive arm 302 has at least two parts. The first drive arm 302 is 7-shaped and its middle part is rotatably mounted on the first body 301. Its first end is movably connected to the upper end of the first lifting rod 303, and the first lifting rod 303 is rotatably mounted on the first body 301 in a vertical direction. Its second end is rotatably mounted with a first roller 3061 that matches and abuts against the first cam 306. The first stamping moving die 304 is installed at the bottom end of the first lifting rod 303 located upstream of the processing production line, and its lower end is matched with a first stamping fixed die 305 that cooperates with the first stamping moving die 304 to stamp the metal wire into sheet metal wire. The first stamping fixed die 305 is fixed on the main frame 101. A stamping roller 307 is rolledly mounted on the bottom end of the first lifting rod 303 located downstream of the processing line, and a core-removing die 308 is provided below it for stamping the sheet metal wire to remove the core of the geometric link. The core-removing die 308 includes: Core-taking mold 3082 is fixed on the main frame 101; The moving core-taking mold 3081 has its upper end abutting against the stamping wheel 307, and its lower end is connected to the fixed core-taking mold 3082 through a plurality of first elastic elements; in this embodiment, the first elastic elements are compression springs or gas springs. The movable positioning pins 3083 are arranged symmetrically on both sides of the core-taking moving die 3081. The core-taking fixed die 3082 has symmetrical positioning grooves on both sides to accommodate the movable positioning pins 3083 and to position the stamping stroke of the core-taking moving die 3081.

[0035] In the above embodiment, the first stamping forming mechanism 30 achieves the stamping forming of the metal wire from a linear shape to a sheet shape, as well as the precise removal of the geometric link core. Specifically, the rotational motion of the drive shaft 801 of the drive mechanism 80 directly drives the first cam 306. The contour of the first cam 306 matches and abuts against the first roller 3061 on the first drive arm 302, converting the rotational motion into the swinging motion of the first drive arm 302. Since the first drive arm 302 is 7-shaped and its middle part is rotatably mounted on the first machine body 301, its first end is movably connected to the upper end of the first lifting rod 303, so that the first lifting rod 303 performs vertical reciprocating motion within the first machine body 301. Upstream of the processing line, the first stamping moving die 304 installed at the bottom end of the first lifting rod 303 cooperates with the first stamping fixed die 305 fixed on the main frame 101 to stamp the metal wire and form it into a sheet metal wire. Subsequently, downstream of the processing line, the stamping roller 307, also installed at the bottom of the first lifting rod 303, cooperates with the core-removing die 308 located below it during its descent to stamp the formed sheet metal wire, precisely removing the core of the geometric link. The entire process is uniformly driven by the drive shaft 801, ensuring a high degree of synchronization and coordination between the stamping and core-removing actions, thereby avoiding problems such as uncoordinated stamping actions and unstable core-removing accuracy that may occur in traditional processing. This direct mechanical linkage design simplifies the control system and improves the reliability of the mechanism and the smoothness of automated processing.

[0036] The upper end of the core-removing moving die 3081 is in close contact with the stamping roller 307. When the stamping roller 307 moves downward, it drives the core-removing moving die 3081 to move downward, directly and efficiently transmitting the stamping force to the sheet metal wire to complete the stamping removal of the core. During the downward stamping process of the core-removing moving die 3081, several movable positioning pins 3083 set on both sides slide vertically and vertically in the corresponding positioning grooves on the core-removing fixed die 3082. This strictly limits the range of motion of the movable positioning pins 3083, thereby precisely controlling the stamping stroke of the core-removing moving die 3081 and ensuring the consistency of the stamping depth each time. After stamping is completed, the first elastic element provides an upward restoring force after stamping, allowing the core-removing moving die 3081 to quickly and smoothly spring back to its initial position. At the same time, the first elastic element can also effectively buffer the impact force generated during stamping, reducing the vibration and wear of the die. Through this collaborative operation, the core removal die 308 can stably, efficiently and accurately remove the core of the geometric link in the first stamping forming mechanism 30.

[0037] In one possible design, Figure 6 This is a schematic diagram of a second stamping mechanism structure according to an exemplary embodiment. (Refer to...) Figures 1-3 and Figure 6 The second stamping forming mechanism 50 includes: The second body 501 is fixed on the main frame 101; The second cam 510 is axially fixed to the drive shaft 801; The second drive arm 502 is 7-shaped and its middle part is rotatably mounted on the first body 301. Its first end is movably connected to the upper end of a second lifting rod, and the second lifting rod is vertically movably mounted on the second body 501. Its second end is movably sleeved on the second cam 510 to drive the stamping seat 505 to move vertically. The second stamping moving die 505 is fixed to the lower end of the second lifting rod, and its lower end is matched with a second stamping fixed die 506 that cooperates with the second stamping moving die 505 to stamp and remove the outer edge portion of the geometric link corresponding to the sheet metal wire to form the geometric link. The second stamping fixed die 506 is fixed on the main frame 101.

[0038] In the above embodiment, the second stamping forming mechanism 50 utilizes the linkage mechanism of the drive shaft 801, the second cam 510, the second drive arm 502, and the second lifting rod to precisely convert the rotational motion of the drive shaft 801 into the vertical reciprocating motion of the second stamping moving die 505, ensuring the accuracy and controllability of the stamping action. The second body 501 provides stable support for the entire mechanism, and the vertical guidance of the second lifting rod ensures that the motion trajectory of the stamping moving die is free from deviation. This precise motion control enables the second stamping moving die 505 and the second stamping fixed die 506 to cooperate with high precision, thereby accurately stamping away the outer edge of the geometric link corresponding to the sheet metal wire, avoiding inaccurate forming of the outer edge of the geometric link or material positioning offset caused by unstable motion, and improving the production efficiency and product qualification rate of the entire jewelry chain.

[0039] Furthermore, during the stamping of sheet metal wires, there may be instances where the sheet metal wires are not effectively fixed, leading to displacement or inaccurate positioning during the stamping process, affecting the accuracy and consistency of geometric link forming. This application embodiment further proposes that the second stamping mechanism 50 also includes: The stamping positioning head 507 has an inclined surface at its upper end, and the side wall of the second stamping moving die 505 has a slope surface that matches the inclined surface, so as to press the stamping positioning head 507 to abut and fix the sheet metal wire when the second stamping moving die 505 moves downward. The movable rod 508 has one end fixed to the stamping positioning head 507, and its middle part is rotatably mounted on a movable seat 509. The movable rod 508 has a cam counterweight for resetting and flipping corresponding to its rotatable mounting position. The movable seat 509 is fixed on the second stamping die 506.

[0040] In the above embodiment, when the second stamping moving die 505 descends vertically under the drive of the drive mechanism 80, the ramp surface on its side wall contacts the inclined surface at the upper end of the stamping positioning head 507. Due to the interaction between the ramp surface and the inclined surface, the vertical movement of the second stamping moving die 505 is converted into a thrust on the stamping positioning head 507. Under the support and guidance of the movable rod 508, the stamping positioning head 507 flips and moves to abut against and clamp the sheet metal wire located on the second stamping fixed die 506, firmly fixing it in the stamping position. This precise clamping mechanism ensures that the sheet metal wire will not shift during the stamping operation of the second stamping forming mechanism 50, thereby ensuring the accuracy and consistency of the stamping of the outer edge of the geometric link. When the second stamping moving die 505 completes the stamping and begins to move upward, its ramp surface disengages from the inclined surface of the stamping positioning head 507, and the clamping force is released. At this point, the cam counterweight on the movable rod 508 uses its own gravity or a preset torque to automatically flip and reset the movable rod 508, causing the stamping positioning head 507 to spring back from the sheet metal wire, releasing the clamped sheet metal wire and making room for subsequent feeding and stamping operations. The entire process is automated and continuous, requiring no manual intervention, significantly improving production efficiency and automation level.

[0041] In one possible design, Figure 5 This is a schematic diagram illustrating the structure of a feeding mechanism according to an exemplary embodiment. (Refer to...) Figures 1-3 and Figure 5 The feeding mechanism 40 includes: Two delivery rods 401 are symmetrically arranged between the first stamping forming mechanism 30 and the second stamping forming mechanism 50, and their middle parts are horizontally rotatably mounted on the main frame 101 via a rotating shaft 4011; There are two feeding seats 402, which are movably mounted on the first end of the delivery rod 401 and have a feeding groove matching the sheet metal wire in the middle of their upper ends. Two dovetail blocks 406 are fixed to one end of the feeding seat 402, and their other ends are slidably fitted into the dovetail grooves opened on the first stamping die 305 or the second stamping die 506 to limit the movement of the feeding seat 402 along the conveying direction of the sheet metal wire. The second elastic element 403 is of several kinds, and one end of it is connected to the feed seat 402, and the other end is connected to the first stamping die 305 or the second stamping die 506 to provide the feed seat 402 with elastic restoring force; in this embodiment, the second elastic element 403 is a tension spring. There are two trigger rods 404, which are respectively fixed vertically to the lower side of the second end of the delivery rod 401, and a second roller 405 is rotatably mounted on the bottom end of each rod. The trigger wheel 406 is axially fixed to the drive shaft 801, and its side wall has a wave-shaped wall that matches and abuts against the second roller 405 to drive the delivery rod 401 to rotate horizontally.

[0042] In the above embodiment, when the drive shaft 801 of the drive mechanism 80 rotates, the trigger wheel 406, which is axially fixed thereon, also rotates. The side wall of the trigger wheel 406 has a wavy surface, which periodically matches and abuts against the second roller 405, which is horizontally rotatably mounted at the bottom of the trigger rod 404. The rotational motion of the trigger wheel 406 is converted into the horizontal rotation of the delivery rod 401 through the second roller 405 and the trigger rod 404. The middle part of the delivery rod 401 is horizontally rotatably mounted on the main frame 101 via a rotating shaft 4011, so it can swing around the rotating shaft 4011. During the swinging process of the delivery rod 401, the two feeding seats 402, which are movably mounted on its first end, also move accordingly. The upper middle part of the feeding seat 402 is provided with a feeding groove for matching sheet metal wires, which is used to precisely clamp and guide the sheet metal wires. To ensure the stability and positioning accuracy of the feeder 402 during movement, a dovetail block 406 is slidably fitted into a dovetail groove on the first stamping die 305 or the second stamping die 506. This dovetail fit effectively restricts the lateral displacement of the feeder 402 along the conveying direction of the sheet metal wire, ensuring the straightness and accuracy of the feeding. After the feeder 402 completes one feeding action, several second elastic elements 403 provide elastic restoring force, enabling the feeder 402 to automatically return to its initial position, preparing for the next feeding cycle. Through the above coordinated operation, the feeding mechanism 40 can accurately transmit the metal wire provided by the wire spool 203, after being processed into sheet metal wire by the first stamping forming mechanism 30, to the second stamping forming mechanism 50 for subsequent processing. The drive shaft 801 directly drives the feeding mechanism 40, ensuring precise synchronization between the feeding action and other mechanisms such as the first stamping forming mechanism 30, the assembly mechanism 70, and the welding mechanism 60. This solves the problems of feeding position deviation, inaccurate positioning, and lack of synchronization mechanism that may occur in traditional feeding processes, significantly improving the automation efficiency and processing continuity of the entire geometric link jewelry chain forming machine. It is understood that when the feeding seat 402 is conveying, both the first stamping forming mechanism 30 and the second stamping forming mechanism 50 are in a raised moving mold state. When the feeding seat 402 is reset, both the first stamping forming mechanism 30 and the second stamping forming mechanism 50 are in a moving and fixed mold closing state, fixing the metal wire to overcome the frictional force when the feeding seat 402 resets.

[0043] In one possible design, Figure 7 This is one of the schematic diagrams of the combined structure of the assembly mechanism and the welding mechanism according to an exemplary embodiment. Figure 8This is a second schematic diagram illustrating the combined structure of the assembly mechanism and the welding mechanism according to an exemplary embodiment. (Refer to...) Figures 7-8 The assembly mechanism 70 includes: A gripping head 701 is fixed to the free end of a robotic arm 703 and can rotate 90° under the drive of the robotic arm 702 to grip the geometric link. In this embodiment, the gripping head 701 is an actuating component for grasping and positioning the geometric link. It can take the form of a mechanical gripper, which is driven to open and close pneumatically or electrically to achieve stable gripping of the geometric link. The robotic arm 703 is a programmable, multi-degree-of-freedom automated actuator used to drive the gripping head 701 to grasp and rotate. The assembly housing 702 is fixed to the main frame 101, and the robotic arm 703 is movably assembled inside the assembly housing 702; The third cam 709 is axially fixed on the drive shaft 801; The cantilever 704 is rotatably mounted on the assembly housing 702, and its first end is movably mounted to the robotic arm 703. Its second end is connected to the first end of a third drive arm 706 via a universal joint 705. The middle part of the third drive arm 706 is rotatably mounted on the main frame 101 via a rotating shaft 707. The second end of the third drive arm 706 is rotatably mounted with a third roller 708 that matches and abuts against the third cam 709.

[0044] In the above embodiment, the rotation of the drive shaft 801 drives the third cam 709, which is axially fixed thereon, to rotate synchronously. The contour of the third cam 709 matches and abuts against the third roller 708. When the third cam 709 rotates, the third roller 708, driven by the cam contour, causes the third drive arm 706, on which the third roller 708 is rotatably mounted, to swing around the rotation axis 707. The swing of the third drive arm 706 is transmitted to the cantilever 704 through the universal joint 705. The middle part of the cantilever 704 is rotatably mounted on the assembly housing 702, and its first end is movably mounted to the robotic arm 703. Therefore, the movement of the cantilever 704 drives the robotic arm 703 to move within the assembly housing 702, thereby causing the gripper head 701, fixed to the free end of the robotic arm 703, to move precisely in space. When it moves to the first stamped geometric link, it grips the geometric link and, in conjunction with the robotic arm 703, rotates it 90° so that the thickness face of the geometric link aligns with the assembly opening of the second stamped geometric link for insertion into the assembly. Subsequently, the welding mechanism 60 intervenes in the welding process. During welding, the welding mechanism 60 positions the second geometric link, and the gripper head 701 releases the first geometric link and rotates 90° to reset. The first geometric link hangs down under the action of gravity. Then, the gripper head 701 removes the welded second geometric link and repeats the above assembly process. The entire assembly process is driven by the drive shaft 801, achieving automated synchronous operation with other mechanisms on the processing production line (such as the first stamping forming mechanism 30, the feeding mechanism 40, and the welding mechanism 60), ensuring the accuracy and stability of the assembly action.

[0045] In one possible design, continue to refer to Figures 7-8 The welding mechanism 60 includes: Welding head 601 is located at the first end of the welding machine body; The welding housing 602 is fixed to the main frame 101, and the welding machine body is movably assembled inside the welding housing 602; The fourth cam 604 is axially fixed to the drive shaft 801; The fourth drive arm 603 is rotatably mounted on the welding housing 602, and its first end is movably mounted to the welding machine body. Its second end is rotatably mounted with a third roller 708 that matches and abuts against the third cam 709.

[0046] In the above embodiment, the welding head 601 directly performs the welding operation, ensuring that the welding point is aligned with the assembly opening. The welding machine body is movably mounted within the welding housing 602, allowing it to move within the housing and adapt to different welding positions. The fourth cam 604 is axially fixed to the drive shaft 801 and directly driven by it, ensuring that the welding action is synchronized with other mechanisms on the production line. The fourth drive arm 603 is rotatably mounted on the welding housing 602 at its center, with its first end movably mounted to the welding machine body, converting the rotational motion of the cam into linear displacement of the welding machine body, precisely adjusting the position of the welding machine body and the welding timing.

[0047] Understandably, during the entire geometric link jewelry chain forming process, the drive shaft 801 of the drive mechanism 80 serves as the core power source, driving not only the first stamping and forming mechanism 30, the feeding mechanism 40, and the assembly mechanism 70, but also synchronously driving the welding mechanism 60. After the assembly mechanism 70 completes the assembly of adjacent geometric links, the fourth cam 604, axially fixed on the drive shaft 801, immediately drives the fourth drive arm 603 through its precisely designed contour. The fourth drive arm 603 converts the rotational motion of the cam into the precise reciprocating motion of the welding machine body, thereby driving the welding head 601 to accurately move to the assembly opening and perform the welding operation. This synchronous driving method, using the same drive shaft 801, ensures a high degree of coordination between the actions of the welding mechanism 60 and the assembly mechanism 70, as well as other parts of the entire processing line, avoiding problems such as inaccurate welding positions or unstable welding quality caused by timing deviations between different mechanisms.

[0048] In one possible design, continue to refer to Figures 1-8 The drive mechanism 80 further includes: The transmission wheel 802 is axially fixed to one end of the drive shaft 801; A drive wheel 803 is connected to the drive wheel 802 via a transmission belt; The drive motor 804 has its output end fixed to the drive wheel 803 and is fixed to the frame 10 by a motor mount.

[0049] In the above embodiment, the drive motor 804 is fixed to the frame 10 via a motor mount. The output shaft of the drive motor 804 is directly fixed to the drive wheel 803, and the transmission belt transmits the rotational motion and power of the drive wheel 803 to the transmission wheel 802. The transmission wheel 802 is axially fixed to one end of the drive shaft 801, directly transmitting the received power to the drive shaft 801. As the core transmission shaft of the entire equipment, the drive shaft 801 directly drives multiple key processing mechanisms such as the first stamping and forming mechanism 30, the feeding mechanism 40, the assembly mechanism 70, and the welding mechanism 60. Ultimately, the drive shaft 801 can coordinate the actions of each mechanism, realizing the automated operation of the processing production line. Through the above power transmission chain, the synchronization and coordination of each working mechanism of the entire geometric link jewelry chain forming machine are ensured, greatly improving processing efficiency.

[0050] Second Embodiment See Figure 1-3 As shown, this is the second embodiment of the present invention. It should be noted that this embodiment is based on the first embodiment described above, so the similarities between the two embodiments will not be repeated (e.g., mainframe 101). Furthermore, for ease of explanation and understanding, this embodiment will be described in conjunction with the accompanying drawings of the first embodiment described above. The quantities and shapes mentioned in the accompanying drawings are only used to specifically illustrate the implementation of the present invention so as to facilitate understanding of the content of the present invention, and are not intended to limit the scope of protection of the present invention.

[0051] like Figure 1-3 As shown, the second embodiment of the present invention discloses that a frame 10 is fixed at the lower end of the main frame 101, and a control panel 90 electrically connected to the drive mechanism 80, the assembly mechanism 70 and the welding mechanism 60 is provided on the frame 10.

[0052] In the above embodiment, the frame 10 serves as the basic support structure for the entire geometric link jewelry chain forming machine. Its function is to provide a stable installation platform for the equipment and bear the weight of the main frame 101 and all mechanisms on it. The control panel 90 is the core interface for human-machine interaction, used by the operator to monitor, set parameters, and input operating commands for the geometric link jewelry chain forming machine. The control panel 90 can be a traditional operating interface integrating physical buttons, indicator lights, and a display screen, or it can be a modern industrial touch screen (HMI) that provides a more intuitive and convenient operating experience through a graphical interface. Its main function is to receive operator commands and convert them into electrical signals to send to the corresponding actuators, while also receiving status feedback information from each mechanism and displaying it to the operator. The electrical connection can be a direct cable connection for transmitting switch or analog signals; or it can be a bus connection based on industrial communication protocols (such as Modbus, Profinet, EtherCAT, etc.) to achieve high-speed and reliable data exchange and command transmission. Through this connection, the control panel 90 can perform unified start-stop, speed adjustment, and mode switching operations on the drive mechanism 80, assembly mechanism 70, and welding mechanism 60, ensuring the coordination and consistency of the entire processing process.

[0053] Other undescribed structures are described in Example 1.

[0054] In summary, the geometric link jewelry chain forming machine provided in this embodiment of the invention, through the wire spool 203, the first stamping forming mechanism 30, the feeding mechanism 40, the second stamping forming mechanism 50, the assembly mechanism 70, the welding mechanism 60, and the drive mechanism 80 arranged sequentially along the processing line on the main frame 101, realizes continuous automated processing of metal wire from stamping forming to assembly and welding. It has the advantages of high efficiency, precision, and automated production, significantly improving production efficiency, dimensional accuracy and yield, while reducing manual labor intensity and operational complexity.

[0055] The above-disclosed content is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included in the scope of the patent application of the present invention.

Claims

1. A geometric link jewelry chain forming machine, comprising a main frame, characterized in that, The main frame is sequentially equipped with the following components along the processing line: A spool assembly, which is rotatably mounted to the first end of the frame via a spool bracket, and on which a metal wire is wound; A first stamping forming mechanism is used to stamp the metal wire into a sheet metal wire and to stamp the sheet metal wire to remove the core of the geometric links; A feeding mechanism for conveying the sheet-like metal wire; The second stamping forming mechanism is used to stamp the outer edge portion of the geometric link corresponding to the sheet metal wire to form the geometric link, the geometric link having an assembly opening; An assembly mechanism for assembling two adjacent geometric links through the assembly opening to form a continuous jewelry chain; A welding mechanism for welding the assembly openings of the assembled geometric links to secure adjacent geometric links of the jewelry chain. In addition, a driving mechanism includes at least one driving shaft, which is rotatably mounted on the main frame and directly drives the first stamping mechanism, feeding mechanism, assembly mechanism and welding mechanism to realize automatic processing of the processing line.

2. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, The first stamping forming mechanism includes: The first body is fixed to the main frame; The first cam is axially fixed on the drive shaft; The first drive arm has at least two arms. The first drive arm is 7-shaped and its middle part is rotatably mounted on the first body. Its first end is movably connected to the upper end of the first lifting rod, and the first lifting rod is rotatably mounted on the first body. Its second end is rotatably mounted with a first roller that matches and abuts against the first cam. The first stamping moving die is installed at the bottom end of the first lifting rod located upstream of the processing production line, and its lower end is matched with a first stamping fixed die that cooperates with the first stamping moving die to stamp the metal wire into sheet metal wire. The first stamping fixed die is fixed on the main frame. A stamping wheel is rolled and mounted on the bottom end of the first lifting rod located downstream of the processing line, and a core-removing die is provided below it for stamping the sheet metal wire to remove the core of the geometric link.

3. The geometric link jewelry chain forming machine as described in claim 2, characterized in that, The core extraction mold includes: The core-taking mold is fixed on the main frame; The moving core-taking die has its upper end abutting against the stamping wheel, and its lower end is connected to the fixed core-taking die through a number of first elastic elements; The movable positioning pins are arranged symmetrically on both sides of the core-taking moving die. The core-taking fixed die has symmetrical positioning slots on both sides to accommodate the movement of the movable positioning pins and to position the stamping stroke of the core-taking moving die.

4. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, The second stamping forming mechanism includes: The second body is fixed to the main frame; The second cam is axially fixed on the drive shaft; The second drive arm is 7-shaped and its middle part is rotatably mounted on the second body. Its first end is movably connected to the upper end of the second lifting rod, and the second lifting rod is vertically movably mounted on the second body. Its second end is movably sleeved on the second cam to drive the stamping seat to move vertically. The second stamping moving die is fixed to the lower end of the second lifting rod, and its lower end is matched with a second stamping fixed die that works with the second stamping moving die to stamp and remove the outer edge portion of the geometric link corresponding to the sheet metal wire to form the geometric link. The second stamping fixed die is fixed on the main frame.

5. The geometric link jewelry chain forming machine as described in claim 4, characterized in that, The second stamping forming mechanism also includes: The stamping positioning head has an inclined surface at its upper end, and the side wall of the second stamping moving die has a slope surface that matches the inclined surface, so as to press the stamping positioning head against and fix the sheet metal wire when the second stamping moving die moves downward. The movable rod has one end fixed to the stamping positioning head, and its middle part is rotatably mounted on a movable seat. The movable rod has a cam counterweight for resetting and flipping corresponding to its rotatable mounting position. The movable seat is fixed on the second stamping die.

6. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, The feeding mechanism includes: Two delivery rods are symmetrically arranged between the first stamping forming mechanism and the second stamping forming mechanism, and their middle parts are horizontally rotatably mounted on the main frame via a rotating shaft; There are two feeding seats, which are movably mounted on the first end of the delivery rod and have a feeding groove matching the sheet metal wire in the middle of their upper ends. Two dovetail blocks are fixed to one end of the feeding seat, and their other ends are slidably fitted into the dovetail grooves opened on the first or second stamping die to limit the movement of the feeding seat along the conveying direction of the sheet metal wire. The second elastic element is of several kinds, and one end of it is connected to the feeding seat, and the other end is connected to the first stamping die or the second stamping die to provide the elastic restoring force of the feeding seat. There are two trigger rods, which are respectively fixed vertically to the lower side of the second end of the delivery rod, and a second roller is rotatably mounted on the bottom end of each rod. The trigger wheel is axially fixed to the drive shaft, and its side wall has a wavy wall that matches and abuts against the second roller to drive the delivery rod to rotate horizontally.

7. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, The assembly mechanism includes: A gripping head, which is fixed to the free end of a robotic arm and can rotate 90° under the drive of the robotic arm to grip the geometric link; An assembly housing is fixed to the main frame, and the robotic arm is movably assembled inside the assembly housing; The third cam is axially fixed on the drive shaft; The cantilever has its middle section rotatably mounted on the assembly housing, and its first end is movably mounted to the robotic arm. Its second end is connected to the first end of the third drive arm via a universal joint. The middle section of the third drive arm is rotatably mounted on the main frame via a rotating shaft. The second end of the third drive arm is rotatably mounted with a third roller that matches and abuts against the third cam.

8. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, The welding mechanism includes: The welding head is located at the first end of the welding machine body; A welding housing is fixed to the main frame, and the welding machine body is movably assembled inside the welding housing; The fourth cam is axially fixed to the drive shaft; The fourth drive arm has its middle part rotatably mounted on the welding housing, and its first end is movably mounted to the welding machine body. Its second end is rotatably mounted with a third roller that matches and abuts against the third cam.

9. The geometric link jewelry chain forming machine as described in claim 1, characterized in that, A frame is fixed at the lower end of the main frame, and a control panel electrically connected to the drive mechanism, assembly mechanism and welding mechanism is provided on the frame.

10. The geometric link jewelry chain forming machine as described in claim 9, characterized in that, The drive mechanism also includes: A transmission wheel, which is axially fixed to one end of the drive shaft; A drive wheel, which is connected to the drive wheel via a transmission belt; A drive motor, the output end of which is fixed to the drive wheel, and which is fixed to the frame via a motor mount.

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