Capacitor lead aluminum wire stamping device

Abstract

The invention relates to a capacitor lead aluminum wire stamping device which comprises a base, a stamping box is fixedly installed at the top of the base, vertical sliding rails are symmetrically arranged on the two sides of the stamping box, two pairs of bearing seats are slidably connected to the vertical sliding rails correspondingly, and an extrusion roller is coaxially installed between each pair of bearing seats through a bearing. A first servo motor is fixedly installed at the top of the base, the output end of the first servo motor is in rigid connection with a center shaft of one extrusion roller through a coupler, two second servo motors are installed at the top of the stamping box body, the output ends of the second servo motors penetrate through the stamping box body and are connected with vertically-arranged threaded rods, and the threaded rods are in threaded fit with the corresponding bearing seats. A wire feeding mechanism is further arranged on the top of the base and used for continuously conveying aluminum wires to a stamping station between the two extrusion rollers. The problems that the punch forming precision and efficiency are insufficient, the wire feeding stability is poor, and the equipment integration degree is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor production equipment, and in particular to a stamping device for capacitor lead aluminum wire. Background Art

[0002] In the manufacture of aluminum electrolytic capacitors, the stamping and forming of lead aluminum wire is one of the core processes. When stamping the aluminum wire, it is necessary to manually adjust the die spacing, which is difficult to meet the processing requirements of different specifications of aluminum wire, and frequent die change leads to long downtime; the conventional wire feeding mechanism is prone to deviation of the stamping position due to slipping or offset of the aluminum wire, affecting the dimensional consistency of the leads; the stamping process is separated from subsequent processes such as cleaning and forming, and multiple devices need to be operated step by step, resulting in low production efficiency and large material flow loss; the oxide layer on the surface of the aluminum wire and the high-frequency friction during the stamping process are likely to damage the extrusion rollers and shorten the service life of the equipment. Summary of the Invention

[0003] Aiming at the above defects existing in the prior art, the present invention provides a stamping device for capacitor lead aluminum wire, which solves the problems of insufficient stamping accuracy and efficiency, poor wire feeding stability, and low equipment integration.

[0004] The object of the present invention is achieved through the following technical solutions. A stamping device for capacitor lead aluminum wire includes a base. A stamping box body is fixedly installed on the top of the base. Vertical sliding rails are symmetrically arranged on both sides of the stamping box body. Two pairs of bearing seats are respectively slidably connected to the vertical sliding rails. An extrusion roller is coaxially installed between each pair of bearing seats through bearings. A first servo motor is fixedly installed on the top of the base, and its output end is rigidly connected to the central axis of one of the extrusion rollers through a coupling. Two second servo motors are installed on the top of the stamping box body, and their output ends penetrate the stamping box body and are connected to vertically arranged threaded rods. The threaded rods are in threaded cooperation with the corresponding bearing seats. A wire feeding mechanism is also arranged on the top of the base for continuously conveying the aluminum wire to the stamping station between the two extrusion rollers.

[0005] Further, the wire feeding mechanism includes a side-mounted plate installed on the top of the base. A first gear A, a first gear B, a second gear A, and a second gear B are rotatably connected to one side of the side-mounted plate. The first gear A and the first gear B are meshed with each other. The second gear A and the second gear B are meshed with each other. A wire feeding wheel is installed on one side of the first gear A, the first gear B, the second gear A, and the second gear B. A third servo motor is installed on the other side of the side-mounted plate. The output end of the third servo motor penetrates the side-mounted plate and is connected to a third gear. The third gear is meshed with the first gear B and the second gear B. Aluminum wire feeding support blocks are arranged on one side of the side-mounted plate between the first gear A and the second gear A and on both sides thereof.

[0006] Furthermore, the rotational speeds and directions of the first servo motor, the second servo motor, and the third servo motor are synchronously controlled by a control unit.

[0007] Furthermore, the surface of the extrusion roller is coated with a tungsten carbide wear-resistant coating.

[0008] Furthermore, a ultrasonic cleaning machine, a forming machine, a dryer, and a material collecting machine are sequentially arranged on one side of the stamping box body.

[0009] In summary, compared with the prior art, the present invention has the following advantages:

[0010] 1. In the present invention, the distance between the two extrusion rollers is adjusted by driving a threaded rod with a second servo motor, so that different diameters of aluminum wires can be adapted without replacing the die, significantly improving the versatility of the equipment; the threaded fit between the threaded rod and the bearing block is combined with the self-locking function to ensure the stable position of the extrusion roller during the stamping process.

[0011] 2. In the present invention, the wire feeding mechanism adopts a gear set to drive the wire feeding wheel in a linkage manner, and a third servo motor is used to synchronously drive multiple groups of gears to achieve the non-slip and uniform feeding of the aluminum wire; the aluminum wire feeding support block is matched with the guiding channel to prevent the aluminum wire from shifting or shaking, ensuring the accurate stamping position.

[0012] 3. In the present invention, the stamping device, the ultrasonic cleaning machine, the forming machine, the dryer, and the material collecting machine are arranged in a straight line to realize the full-process automation of the lead processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is a schematic structural diagram of the present invention;

[0015] Figure 3 is a schematic structural diagram of the wire feeding mechanism of the present invention.

[0016] In the figure: 1 - base, 2 - stamping box body, 3 - bearing block, 4 - extrusion roller, 5 - first servo motor, 6 - second servo motor, 7 - threaded rod, 8 - wire feeding mechanism, 801 - side vertical mounting plate, 802 - first gear A, 803 - first gear B, 804 - second gear A, 805 - second gear B, 806 - wire feeding wheel, 807 - third servo motor, 808 - third gear, 809 - aluminum wire feeding support block. DETAILED DESCRIPTION OF THE INVENTION

[0017] The following are specific embodiments to further illustrate the technical solutions of the present invention in detail, but the present invention is not limited to these embodiments.

[0018] Combined with Figures 1 to 3As shown in the figure, a stamping device for capacitor lead aluminum wire includes a base 1. A stamping box body 2 is fixedly installed on the top of the base 1. Vertical slide rails are symmetrically arranged on both sides of the stamping box body 2. Two pairs of bearing seats 3 are respectively slidably connected to the vertical slide rails. A squeezing roller 4 is coaxially installed between each pair of bearing seats 3 through bearings. A first servo motor 5 is fixedly installed on the top of the base 1, and its output end is rigidly connected to the central shaft of one of the squeezing rollers 4 through a coupling. Two second servo motors 6 are installed on the top of the stamping box body 2, and their output ends penetrate the stamping box body 2 and are connected to vertically arranged threaded rods 7. The threaded rods 7 are in threaded cooperation with the corresponding bearing seats 3. A wire feeding mechanism 8 is also arranged on the top of the base 1, which is used to continuously feed the aluminum wire to the stamping station between the two squeezing rollers 4.

[0019] Combined with Figure 3 As shown in the figure, the wire feeding mechanism 8 includes a side-mounted plate 801 installed on the top of the base 1. A first gear A 802, a first gear B 803, a second gear A 804, and a second gear B 805 are rotatably connected to one side of the side-mounted plate 801. The first gear A 802 and the first gear B 803 are meshed with each other, and the second gear A 804 and the second gear B 805 are meshed with each other. A wire feeding wheel 806 is installed on one side of the first gear A 802, the first gear B 803, the second gear A 804, and the second gear B 805. A third servo motor 807 is installed on the other side of the side-mounted plate 801. The output end of the third servo motor 807 penetrates the side-mounted plate 801 and is connected to a third gear 808. The third gear 808 is meshed with the first gear B 803 and the second gear B 805. Aluminum wire feeding support blocks 809 are arranged on one side of the side-mounted plate 801 between the first gear A 802 and the second gear A 804 and on both sides thereof; after the aluminum wire coil is unwound by the feeding module, it enters the wire feeding mechanism 8; the third servo motor 807 drives the third gear 808, driving the first gear B 803 and the second gear B 805 to rotate synchronously, so that the wire feeding wheel 806 clamps the aluminum wire and advances at a uniform speed. The aluminum wire is accurately positioned to the stamping station between the two squeezing rollers 4 through the wire feeding support blocks 809, eliminating the risk of aluminum wire slipping caused by single-point driving and ensuring stable feeding of the aluminum wire.

[0020] Combined with Figure 1 As shown in the figure, the rotation speeds and rotation directions of the first servo motor 5, the second servo motor 6, and the third servo motor 807 are synchronously controlled by a control unit, synchronously controlling the wire feeding, stamping, and spacing adjustment actions, improving the consistency of the processing beat, reducing manual intervention, and reducing the risk of operation errors.

[0021] Combined with Figure 1 As shown in the figure, the surface of the squeezing roller 4 is coated with a tungsten carbide wear-resistant coating, and the tungsten carbide coating significantly improves the wear resistance of the squeezing roller 4 and extends its service life.

[0022] Combined with Figure 1As shown in the figure, an ultrasonic cleaning machine, a forming machine, a dryer, and a material collecting machine are sequentially arranged on one side of the stamping box body 2, integrating the stamping device with the subsequent process equipment to form a complete production line.

[0023] Working principle: After the aluminum wire coil is unwound by the unwinding module, it enters the wire feeding mechanism 8; the third servo motor 807 drives the third gear 808, driving the first gear B803 and the second gear B805 to rotate synchronously, so that the wire feeding wheel 806 clamps the aluminum wire and advances at a uniform speed. The aluminum wire is accurately positioned to the stamping station between the two extrusion rollers 4 through the wire feeding support block 809. The second servo motor 6 adjusts the screw rod 7 to rise according to the aluminum wire specification, driving the bearing seat 3 to move along the vertical slide rail, increasing the distance between the two extrusion rollers 4; the second servo motor 6 adjusts the screw rod 7 to descend, driving the bearing seat 3 to move along the vertical slide rail, reducing the distance between the two extrusion rollers 4; the first servo motor 5 drives the extrusion rollers 4 to rotate, applying radial pressure to the aluminum wire to complete stamping. Subsequently, the second servo motor 6 adjusts the screw rod 7 to rise again, enabling intermittent stamping of the aluminum wire. The semi-finished lead after stamping is conveyed to the next process by the conveying mechanism. The control unit receives the wire feeding speed, stamping force, and equipment status signals in real time, dynamically adjusting the rotation speed and direction of each servo motor; the stamped leads enter the ultrasonic cleaning machine in sequence to remove surface oil stains, are subjected to electrochemical oxidation by the forming machine to form a dense oxide film, and then pass through the dryer to remove residual moisture. Finally, the material collecting machine automatically stacks and packages them.

[0024] The embodiments of the present invention are not limited to those described in the above embodiments. Without departing from the spirit and scope of the present invention, those of ordinary skill in the art can make various changes and improvements in form and detail, and these are all considered to fall within the protection scope of the present invention.

Claims

1. A capacitor lead aluminum wire stamping device, including a base (1), characterized in that: A stamping box body (2) is fixedly installed on the top of the base (1). Vertical slide rails are symmetrically arranged on both sides of the stamping box body (2). Two pairs of bearing seats (3) are respectively slidably connected to the vertical slide rails. An extrusion roller (4) is coaxially installed between each pair of bearing seats (3) through bearings. A first servo motor (5) is fixedly installed on the top of the base (1), and its output end is rigidly connected to the central axis of one of the extrusion rollers (4) through a coupling. Two second servo motors (6) are installed on the top of the stamping box body (2), and their output ends penetrate through the stamping box body (2) and are connected to vertically arranged threaded rods (7). The threaded rods (7) are in threaded cooperation with the corresponding bearing seats (3). A wire feeding mechanism (8) is further arranged on the top of the base (1) for continuously feeding aluminum wire to the stamping station between the two extrusion rollers (4).

2. The aluminum wire stamping device for capacitor leads according to claim 1, characterized in that: The wire feeding mechanism (8) includes a side-mounted mounting plate (801) installed on the top of the base (1). A first gear A (802), a first gear B (803), a second gear A (804), and a second gear B (805) are rotatably connected to one side of the side-mounted mounting plate (801). The first gear A (802) and the first gear B (803) are meshed with each other. The second gear A (804) and the second gear B (805) are meshed with each other. A wire feeding wheel (806) is installed on one side of the first gear A (802), the first gear B (803), the second gear A (804), and the second gear B (805). A third servo motor (807) is installed on the other side of the side-mounted mounting plate (801). The output end of the third servo motor (807) penetrates through the side-mounted mounting plate (801) and is connected to a third gear (808). The third gear (808) is meshed with the first gear B (803) and the second gear B (805). Aluminum wire feeding support blocks (809) are arranged on one side of the side-mounted mounting plate (801) between the first gear A (802) and the second gear A (804) and on both sides thereof.

3. The aluminum wire stamping device for capacitor leads according to claim 2, characterized in that: The rotation speeds and rotation directions of the first servo motor (5), the second servo motor (6), and the third servo motor (807) are synchronously controlled by a control unit.

4. A capacitor lead aluminum wire stamping device according to claim 3, characterized in that: The surface of the extrusion roller (4) is plated with a tungsten carbide wear-resistant coating.

5. A capacitor lead aluminum wire stamping device according to claim 4, characterized in that: An ultrasonic cleaner, a forming machine, a dryer, and a material collector are sequentially arranged on one side of the stamping box body (2).

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