Automatic winding device for voice coil production
By designing an automatic winding device, which utilizes a winding mechanism composed of a double-rod electric pusher cylinder and an arc plate, the production of voice coils is automated and unloaded without damage. This solves the problems of low efficiency and unstable forming of traditional winding devices, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional voice coil production winding devices are inefficient, inconsistent, and produce unstable quality. They require manual intervention, which leads to longer production cycles and makes the coils prone to damage.
Design an automatic winding device that includes a wire feeding, shearing and discharge mechanism. The winding mechanism consists of a double-rod electric pusher cylinder, an arc plate and a circular arc strip. It achieves automated winding and shaping through precise control and non-contact unloading, and achieves non-destructive discharge by combining an air blowing pipe.
It improves the quality and consistency of winding forming, ensures the geometric accuracy and electrical performance of the voice coil, reduces manual intervention, lowers production costs, and improves production efficiency and yield.
Smart Images
Figure CN121842604A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of voice coil manufacturing technology, specifically to an automatic winding device for voice coil manufacturing. Background Technology
[0002] In voice coil production, winding is a critical process. Traditional winding devices typically rely on manual operation or semi-automated equipment, resulting in low efficiency, poor consistency, and high labor intensity. Existing winding equipment often requires manual intervention for material removal and resetting after winding, extending the production cycle and easily causing coil deformation or damage due to improper operation. Furthermore, traditional devices lack effective support and release mechanisms during the winding and shaping stage, leading to unstable coil forming quality and affecting voice coil performance. Therefore, there is an urgent need for a device that can achieve fully automated winding, cutting, and unloading to improve production efficiency, ensure product quality, and reduce labor costs. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides an automatic winding device for voice coil production, which solves the aforementioned problems.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an automatic winding device for voice coil production, comprising a processing table and a rotating ring rotatably connected above the processing table. The surface of the processing table is respectively provided with a wire feeding mechanism, a shearing mechanism and a discharge conveyor belt. The surface of the rotating ring is rotatably connected with a plurality of connecting rods driven by a motor, and the ends of the plurality of connecting rods are all fixedly connected to a winding mechanism. The winding mechanism includes a double-rod electric push cylinder fixed to the end of a connecting rod. Both ends of the piston rod of the double-rod electric push cylinder are fixedly connected to arc-shaped plates. Two fixed rods are fixedly connected to both sides of the double-rod electric push cylinder. A sliding rod is slidably connected to the inner cavity of each fixed rod. An arc-shaped strip is fixedly connected to one end of each sliding rod. Return springs are fixedly connected to both sides of the double-rod electric push cylinder, with the other end of each return spring fixedly connected to one end of the arc-shaped strip. Limit rods are fixedly connected to both sides of the two piston rods of the double-rod electric push cylinder. A positioning rod, coinciding with the movement trajectory of the limit rod, is fixedly connected to the surface of the sliding rod. During use, copper wire is fed by the wire feeding mechanism and wound onto the arc-shaped plates and arc-shaped strips on the surface of the winding mechanism at the end of the connecting rod. The connecting rod rotates, causing the winding mechanism to rotate and perform the winding process. After winding, the wire is conveyed to the shear. The cutting mechanism cuts the copper wires on both sides and then conveys them above the discharge conveyor belt. At this time, the double-rod electric pusher cylinder, powered by the conductive slip ring, starts, driving the two arc plates to move towards the center and retract. The arc plates move downwards and lose the pressure on the sides of the arc strip. Then, when the double-rod electric pusher cylinder moves, it drives the limit rod to move towards the center, squeezing the positioning rod on the sliding rod and applying an inclined thrust to the positioning rod. This pushes the sliding rod to drive the arc strip towards the center and squeezes the reset spring. At this time, both the arc strip and the arc plate retract. The coil, which was originally stretched open, loses its internal circumferential support. At this time, air is blown through the air pipe and blown towards the discharge conveyor belt to complete the discharge. Then, the double-rod electric pusher cylinder pushes the arc plate to reset. At this time, the reset spring pushes the arc strip to reset, and when the sliding rod extends to its limit, it forms a ring with the two arc plates to shape the coil.
[0005] As a further aspect of the present invention: when the reset spring is relaxed and the double-rod electric push cylinder extends to a set distance, the two left and right arc strips and the two upper and lower arc plates form a circle for shaping the coil.
[0006] As a further aspect of the present invention, the curved plate has inclined surfaces that slope towards the center on both sides.
[0007] As a further aspect of the present invention: both sides of the arc strip are provided with tangential surfaces that are inclined to both sides and tangent to the inclined plane.
[0008] As a further aspect of the present invention: an air blowing pipe located at the center of the rotating ring is fixedly connected to the surface of the processing table, and the air blowing pipe is directed toward the winding mechanism located above the discharge conveyor belt.
[0009] Compared with the prior art, the present invention has the following advantages: High-quality and consistent winding: The core components of the winding mechanism, namely two arc-shaped plates and two circular arc strips, can stably combine to form a precisely sized and regularly shaped circular support surface under the precise control of a return spring and a double-rod electric push cylinder. This structure provides uniform and reliable circumferential support for the winding of copper wire, effectively avoiding problems such as ellipticity, deformation, or uneven tension that may occur in traditional winding. This ensures the geometric accuracy and electrical performance consistency of each voice coil product, significantly improving the yield rate.
[0010] The unloading process is smooth and damage-free: This device features a cleverly designed non-contact unloading mechanism. After winding is complete, the dual-rod electric pusher cylinders actuate, causing the arc-shaped plate and circular strip to contract synchronously towards the center, instantly removing the internal support of the wound coil. At this moment, the airflow from the air blower gently and smoothly blows the coil onto the discharge conveyor belt. The entire unloading process requires no robotic gripping or ejector pins, completely avoiding scratches, stretching, or plastic deformation that rigid contact might cause to the fragile coil, perfectly protecting the quality of the finished product.
[0011] The mechanism operates reliably and resets precisely: the reset process of the winding mechanism is ingeniously designed and reliably stable. The double-rod electric pusher cylinder, while pushing the arc plate to reset, provides a forced and precise guiding reset force to the sliding rod and the arc strip through the inclined surfaces of the limit rod and positioning rod. This force, combined with the relaxation force of the reset spring, ensures that the arc strip always returns accurately to the preset position, perfectly re-forming a circle with the two arc plates. This design eliminates the risk of inaccurate reset due to spring fatigue or jamming, guaranteeing the long-term stability and service life of the equipment.
[0012] Compact structure and high space utilization: By circumferentially arranging multiple winding mechanisms on a rotating ring, multiple production steps (such as feeding, winding, shearing, and unloading) can be cyclically performed at a single workstation. This layout greatly compresses the equipment structure, reduces the floor space, and achieves a high degree of overlap in production cycles, enabling the equipment to produce more products per unit time, maximizing both space utilization and overall equipment efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a side view of the winding state structure of the winding mechanism of the present invention; Figure 3 This is a schematic diagram of the retracted state of the winding mechanism of the present invention.
[0014] In the diagram: 1. Processing table; 2. Rotating ring; 3. Connecting rod; 4. Winding mechanism; 5. Air blowing pipe; 6. Wire feeding mechanism; 7. Shearing mechanism; 8. Discharge conveyor belt; 41. Double-rod electric pusher cylinder; 42. Arc plate; 43. Circular arc strip; 44. Return spring; 45. Fixed rod; 46. Sliding rod; 47. Positioning rod; 48. Limiting rod. Detailed Implementation
[0015] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.
[0016] Please see Figure 1-3 The present invention provides a technical solution: an automatic winding device for voice coil production, including a processing table 1 and a rotating ring 2 rotatably connected above the processing table 1. The surface of the processing table 1 is respectively provided with a wire feeding mechanism 6, a shearing mechanism 7 and a discharge conveyor belt 8. The surface of the rotating ring 2 is rotatably connected with a plurality of connecting rods 3 driven by a motor, and the ends of the plurality of connecting rods 3 are all fixedly connected with a winding mechanism 4. The winding mechanism 4 includes a double-rod electric push cylinder 41 fixed to the end of the connecting rod 3. Both ends of the piston rod of the double-rod electric push cylinder 41 are fixedly connected to arc-shaped plates 42. Two fixed rods 45 are fixedly connected to both sides of the double-rod electric push cylinder 41. A sliding rod 46 is slidably connected to the inner cavity of the fixed rod 45. An arc strip 43 is fixedly connected to one end of the sliding rod 46. Return springs 44 are fixedly connected to both sides of the double-rod electric push cylinder 41. The other end of the return spring 44 is fixedly connected to one end of the arc strip 43. Limit rods 48 are fixedly connected to both sides of the two piston rods of the double-rod electric push cylinder 41. A positioning rod 47, whose movement trajectory coincides with that of the limit rod 48, is fixedly connected to the surface of the sliding rod 46. During use, the copper wire is fed by the wire feeding mechanism 6 and wound onto the arc-shaped plates 42 and arc strips 43 on the surface of the winding mechanism 4 at the end of the connecting rod 3. At this time, the connecting rod 3 rotates, causing the winding mechanism 4 to rotate, and the wire is wound. After winding, the wire is conveyed to the shearing mechanism to cut the two... The copper wire on the side is cut and then conveyed to the top of the discharge conveyor belt 8. At this time, the double-rod electric pusher cylinder 41, which is powered by the conductive slip ring, starts and drives the two arc plates 42 to move towards the middle and retract. The arc plates 42 move downward and lose the squeezing of the side of the arc strip 43. Then, when the double-rod electric pusher cylinder 41 moves, it drives the limit rod 48 to move towards the middle and squeezes the positioning rod 47 on the sliding rod 46. An inclined pushing force is applied to the positioning rod 47, which pushes the sliding rod 46 to drive the arc strip 43 to squeeze the return spring 44 towards the middle. At this time, the arc strip 43 and the arc plate 42 are retracted. The coil that was originally stretched out loses the internal circumferential support force. At this time, air is blown through the air pipe 5 and blown towards the discharge conveyor belt 8 to complete the discharge. Then, the double-rod electric pusher cylinder 41 pushes the arc plate 42 to reset. At this time, the return spring 44 pushes the arc strip 43 to reset. When the sliding rod 46 extends to its limit, it forms a ring with the two arc plates 42 to shape the coil.
[0017] When the reset spring 44 relaxes and the double-rod electric push cylinder 41 extends to the set distance, the two left and right arc strips 43 and the two upper and lower arc plates 42 form a circle for shaping the coil.
[0018] Both sides of the curved plate 42 are provided with inclined surfaces that slope towards the center.
[0019] Both sides of the arc strip 43 have cut surfaces that are inclined to both sides and tangent to the inclined plane.
[0020] An air blowing pipe 5 located at the center of the rotating ring 2 is fixedly connected to the surface of the processing table 1. The air blowing pipe 5 faces the winding mechanism 4 located above the discharge conveyor belt 8.
[0021] The working principle of this invention is as follows: First, the copper wire is fed to the winding mechanism through the wire feeding mechanism. The winding mechanism consists of a double-rod electric pusher cylinder, an arc plate, and an arc strip. In the initial state, the reset spring is in a relaxed state, and the piston rod of the double-rod electric pusher cylinder extends, so that the arc plate and the arc strip together form a complete circular structure for supporting and shaping the coil. Subsequently, the connecting rod rotates under the drive of the motor, which drives the winding mechanism to rotate, so that the copper wire is evenly wound on the surface of the arc plate and the arc strip, completing the winding process.
[0022] After winding is completed, the rotating ring moves the winding mechanism to the position of the shearing mechanism, which cuts off both ends of the copper wire. Then, the winding mechanism continues to move above the discharge conveyor belt. At this time, the double-rod electric pusher cylinder starts, and its piston rod retracts towards the middle, driving the two arc-shaped plates to move inward. After the arc-shaped plates retract, they lose their squeezing effect on the sides of the arc strip. At the same time, when the double-rod electric pusher cylinder moves, the limiting rod on its surface moves with the piston rod, squeezing the positioning rod on the sliding rod. Since the movement trajectories of the limiting rod and the positioning rod coincide, the limiting rod applies an inclined thrust to the positioning rod, pushing the sliding rod towards the middle, causing the arc strip to compress the reset spring and retract inward. At this point, both the arc-shaped plate and the arc strip have retracted, and the coil loses its internal support force.
[0023] Finally, the air blower blows air towards the winding mechanism, blowing the coil onto the discharge conveyor belt, completing the discharge. After discharge, the double-rod electric pusher cylinder restarts, pushing the arc plate to reset. Simultaneously, the reset spring relaxes, pushing the arc strip to reset. When the sliding rod extends to its limit, the arc strip and the arc plate re-form a complete circular structure, preparing for the next winding. The entire process is continuous and automated, achieving efficient and stable voice coil production.
[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. An automatic winding device for voice coil production, comprising a processing table (1) and a rotating ring (2) rotatably connected above the processing table (1), wherein the surface of the processing table (1) is respectively provided with a wire feeding mechanism (6), a shearing mechanism (7) and a discharge conveyor belt (8), characterized in that: The surface of the rotating ring (2) is rotatably connected to a plurality of connecting rods (3) driven by a motor, and the ends of the plurality of connecting rods (3) are all fixedly connected to a winding mechanism (4). The winding mechanism (4) includes a double-rod electric push cylinder (41) fixed to the end of the connecting rod (3). Both ends of the piston rod of the double-rod electric push cylinder (41) are fixedly connected to arc plates (42). Both sides of the double-rod electric push cylinder (41) are fixedly connected to two fixed rods (45). The inner cavity of the fixed rod (45) is slidably connected to a sliding rod (46). One end of the sliding rod (46) is fixedly connected to an arc strip (43). Both sides of the double-rod electric push cylinder (41) are fixedly connected to a return spring (44). The other end of the return spring (44) is fixedly connected to one end of the arc strip (43). Both sides of the two piston rods of the double-rod electric push cylinder (41) are fixedly connected to a limit rod (48). The surface of the sliding rod (46) is fixedly connected to a positioning rod (47) that coincides with the movement trajectory of the limit rod (48).
2. The automatic winding device for voice coil production according to claim 1, characterized in that: When the reset spring (44) relaxes and the double-rod electric push cylinder (41) extends to a set distance, the two left and right arc strips (43) and the two upper and lower arc plates (42) form a circle for shaping the coil.
3. The automatic winding device for voice coil production according to claim 1, characterized in that: Both sides of the arc-shaped plate (42) are provided with inclined surfaces that slope towards the center.
4. The automatic winding device for voice coil production according to claim 1, characterized in that: Both sides of the arc strip (43) are provided with tangent surfaces that are inclined to both sides and tangent to the inclined plane.
5. An automatic winding device for voice coil production according to claim 1, characterized in that: The surface of the processing table (1) is fixedly connected to an air blowing pipe (5) located at the center of the rotating ring (2), and the air blowing pipe (5) is directed toward the winding mechanism (4) located above the discharge conveyor belt (8).