Aluminum electrolytic capacitor aluminum foil winding equipment

Abstract

The invention relates to aluminum foil winding equipment for an aluminum electrolytic capacitor, and belongs to the technical field of aluminum foil winding equipment. A vertical groove and a transverse groove which are communicated with each other are formed in a rack; the output winding roller is rotationally mounted on the rack; the chain plate conveying device is installed in the vertical groove and the transverse groove, and an output port is formed in the transverse groove. Release grooves are formed in the limiting rings, the limiting rings are distributed on the chain plate conveying device at intervals, and the release grooves are distributed in the first preset direction; the wind-up roller is rotationally installed in the limiting ring, a blocking column is arranged on the output port, the limiting ring rotates towards the output port after making contact with the blocking column, and the wind-up roller is output along the output port through the releasing groove; the two auxiliary rollers are rotationally arranged on the rack and located on the circumferential side of the transverse groove. The slitting assembly is installed on the rack and located between the two auxiliary rollers. The technical problems that in the prior art, after winding is finished, equipment stops transferring, and the production efficiency is too low are solved.

Description

Technical Field

[0001] This invention belongs to the field of capacitor processing technology, and specifically relates to an aluminum foil winding device for aluminum electrolytic capacitors. Background Technology

[0002] During the aluminum foil winding process, the aluminum foil needs to be wound onto a reel and kept tightly.

[0003] Patent CN208873618U discloses an aluminum foil winding device for aluminum electrolytic capacitors, including an electrical box, a base, a turntable, and a winding device. The electrical box is fixed on the left side of the base, the turntable is mounted on the base, and the winding device is mounted on the turntable. This invention, by providing a first screw hole and a second screw hole, allows operators to select the distance according to the required winding length, satisfying the needs of aluminum foil winding for different lengths and improving the winding efficiency of the aluminum foil winding device for aluminum electrolytic capacitors. By setting a spring, a contact post, and a stationary contact, when the contact post contacts the stationary contact, the electromagnetic coil is energized and attracts the switch, disconnecting the motor from the power supply. The motor operation is stopped in time according to the required winding length, further improving the winding efficiency of the aluminum foil.

[0004] The existing technology has at least the following problems in its use:

[0005] After winding is completed, the equipment will stop transferring, resulting in low production efficiency. Summary of the Invention

[0006] This invention provides an aluminum foil winding device for aluminum electrolytic capacitors, which solves the technical problem of low production efficiency in the prior art where the device stops transferring after winding.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0008] An aluminum foil winding device for aluminum electrolytic capacitors includes: a frame with interconnected vertical and horizontal slots; an output roller rotatably mounted on the frame; a chain conveyor installed within the vertical and horizontal slots, with an output port on the horizontal slot; a limiting ring with release slots, the limiting rings being spaced apart on the chain conveyor, the release slots being distributed along a first preset direction; a take-up roller rotatably mounted within the limiting rings, a stop post being provided on the output port, the limiting rings rotating toward the output port after contacting the stop post, the take-up roller being output along the output port via the release slots; two auxiliary rollers slidably mounted on the frame, located around the periphery of the horizontal slot; and a slitting assembly mounted on the frame, located between the two auxiliary rollers.

[0009] Furthermore, it also includes: a tension roller, wherein a groove is provided on the frame, the tension roller is rotatably installed in the groove, and the tension roller slides along the groove; a tension sensor, disposed on the tension roller, for detecting the tension value of the aluminum foil; an elastic support, installed in the groove, for driving the tension roller to slide along the groove; and a control unit, mounted on the frame, and communicatively connected to the tension sensor and the elastic support.

[0010] Furthermore, the chain conveyor includes: a first circulating chain, which is circulated and slidably disposed in the vertical groove; support rings, which are spaced apart on the first circulating chain, the support rings being used to engage workpieces, and the support rings driving the workpieces to move along the vertical groove; and a first driving member, which is mounted on the frame and is connected to the first circulating chain in a transmission manner.

[0011] Furthermore, the chain conveyor device includes: a second circulating chain, which is circulated and slidably disposed in the transverse groove, with limiting rings spaced apart on the second circulating chain; a second drive unit, which is mounted on the frame and is drive-connected to the second circulating chain; an encoder, which is mounted on the first drive unit and the second drive unit; and a control center, which is communicatively connected to the encoder and the control unit and is drive-connected to the two auxiliary rollers.

[0012] Furthermore, the position of the support ring and the limiting ring is controlled by the control center to transfer the workpiece from the support ring in the vertical groove to the limiting ring in the horizontal groove. The control center is used to control the auxiliary roller to continuously output the workpiece.

[0013] Furthermore, the slitting assembly includes: a slitting bracket with a slitting groove; a slitting blade slidably mounted in the slitting groove; and a sliding drive component, wherein the slitting blade is connected to the sliding drive component in a transmission connection, and the sliding drive component is communicatively connected to the control center.

[0014] Furthermore, the two auxiliary rollers are specifically a first auxiliary roller and a second auxiliary roller. The frame is provided with a first rotating groove, the first auxiliary roller is rotatably disposed in the first rotating groove, and the first auxiliary roller reciprocates along the first rotating groove; the frame is provided with a second rotating groove, the second auxiliary roller is rotatably disposed in the second rotating groove, and the second auxiliary roller reciprocates along the second rotating groove.

[0015] This invention provides an aluminum foil winding device for aluminum electrolytic capacitors, which has the following advantages:

[0016] By setting up L-shaped vertical and horizontal grooves, continuous output after winding is achieved, improving production efficiency; by setting up two auxiliary rollers and a slitting assembly, continuous slitting and winding are achieved. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of an aluminum foil winding device for aluminum electrolytic capacitors provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the installation structure of the first and second circulation chains of an aluminum foil winding device for an aluminum electrolytic capacitor provided in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Another structural view of the installation structure;

[0021] Figure 4 for Figure 2 Front view of the installation structure.

[0022] In the diagram: 10-Frame; 11-Vertical groove; 12-Horizontal groove; 21-Output roll; 321-Limit ring; 322-Release groove; 331-Take-up roll; 13-Stop post; 41-Tension roll; 311-First circulation chain; 312-Support ring; 323-Second circulation chain; 51-Slitting bracket; 52-Slitting groove; 53-Slitting knife; 14-First auxiliary roll; 15-Second auxiliary roll; 16-First rotating disk; 17-Second rotating disk. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to welding, bolting, or riveting; they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Example:

[0028] According to the appendix Figures 1 to 4 As shown, this embodiment provides an aluminum foil winding device for aluminum electrolytic capacitors, including: a frame 10, on which vertical grooves 11 and horizontal grooves 12 are provided that are interconnected; an output roller 21, rotatably mounted on the frame 10; a chain conveyor device, installed in the vertical grooves 11 and horizontal grooves 12, with an output port provided on the horizontal groove 12; a limiting ring 321, with a release groove 322, the limiting rings 321 being spaced apart on the chain conveyor device, the release grooves 322 being distributed along a first preset direction; a take-up roller 331, rotatably mounted in the limiting rings 321, with a stop post 13 provided on the output port, the limiting ring 321 rotating toward the output port after contacting the stop post 13, the take-up roller 331 being output along the output port via the release groove 322; two auxiliary rollers, rotatably mounted on the frame 10, located around the horizontal groove 12; and a slitting assembly, mounted on the frame 10, located between the two auxiliary rollers.

[0029] In this embodiment, a horizontal groove 12 is horizontally arranged at the top of the frame 10, and one end of the groove extends vertically downward to form a vertical groove 11. The internal spaces of the two grooves are interconnected, forming an L-shaped conveying channel. The output roller 21 is used to position the aluminum foil and input it into the winding system and guide it to the take-up roller 331 for winding. The chain plate conveying device is set in the vertical groove 11 and the horizontal groove 12. Its main body consists of a chain, chain plates, and a drive mechanism. The chain plates are fixed on the chain at equal intervals to form a continuous conveying carrier. A rectangular output port is opened near the end of the horizontal groove 12. Its size is slightly larger than the diameter of the take-up roller 331 to facilitate the smooth sliding out of the take-up roller 331. The limiting ring 321 is a circular ring component. The limit ring 321 is placed on the chain plate and is equipped with a counterweight ring. The first preset direction is the same as the distribution direction of the vertical groove 11. The counterweight structure keeps the release groove 322 in the same direction as the vertical groove 11. The stop post 13 abuts against the counterweight structure on the limit ring 321. As the chain plate conveying device drives, the limit ring 321 rotates around the counterweight structure, so that the opening direction of the release groove 322 is consistent with the chain plate conveying direction of the horizontal groove 12. Thus, the wound workpiece is output from the release groove 322. The horizontal groove 12 is equipped with a first rotating disk 16 and a second rotating disk 17, and is equipped with a linear feed mechanism and a chuck mechanism for contacting the winding roller 331 for winding.

[0030] Furthermore, such as Figures 1 to 4 As shown, it also includes: a tension roller 41, with a groove provided on the frame 10, the tension roller 41 being rotatably installed in the groove and sliding along the groove; a tension sensor, installed on the tension roller 41, used to detect the tension value of the aluminum foil; an elastic support, installed in the groove, used to drive the tension roller 41 to slide along the groove; and a control unit, installed on the frame 10, communicating with the tension sensor and the elastic support.

[0031] In this embodiment, U-shaped grooves are symmetrically arranged on both sides of the middle of the frame 10. The groove cross-section is dovetail-shaped to ensure the stability and anti-detachment performance of the tension roller 41 during sliding. The tension roller 41 is connected to the groove through two sets of linear bearings and can slide up and down along the vertical direction of the groove. The tension sensor adopts a strain gauge structure and is built into the rotating shaft of the tension roller 41. The detected tension data is transmitted to the control unit in real time through a wireless signal transmitter. The elastic support is a combination structure of compression spring and damper. The spring is sleeved on the guide shaft of the tension roller 41, and its two ends abut against the support seat at the bottom of the groove and the end plate of the tension roller 41, respectively, to provide basic tension force. The damper is connected in parallel with the spring to suppress the vibration of the tension roller 41. The control unit is an integrated PLC controller installed in the electrical box on the side of the frame 10. It receives the data from the tension sensor, compares it with the preset tension threshold, and then outputs a control signal to adjust the extension and retraction of the elastic support to achieve dynamic compensation of the aluminum foil tension.

[0032] Furthermore, such as Figures 1 to 4 As shown, the chain conveyor includes: a first circulating chain 311, which is circulated and slidably disposed in the vertical groove 11; support rings 312, which are spaced apart on the first circulating chain 311, the support rings 312 are used to clamp the workpiece, and the support rings 312 drive the workpiece to move along the vertical groove 11; and a first driving member, which is mounted on the frame 10 and is connected to the first circulating chain 311 in a transmission connection.

[0033] In this embodiment, parallel guide rails are installed on both sides of the vertical groove 11. The first circulating chain 311 is engaged with the guide rails through the sliders on the chain links to form a stable circulating motion structure. The support ring 312 is a C-shaped open ring component, which is welded to the outside of the chain at equal intervals. The ring opening faces the distribution direction of the horizontal groove 12. Its inner diameter is slightly larger than the outer diameter of the take-up roller 331, which can hold the bottom of the take-up roller 331 and prevent it from tipping over. The first driving component adopts a combination of a servo motor and a reducer. The motor output shaft is connected to the drive sprocket of the first circulating chain 311 through a synchronous belt pulley. The servo motor has a built-in encoder, which can accurately control the chain running speed and positioning. When it is necessary to replenish the take-up roller 331, the first driving component is started, driving the first circulating chain 311 to move along the vertical groove 11 toward the horizontal groove 12.

[0034] Furthermore, such as Figures 1 to 4 As shown, the chain conveyor includes: a second circulating chain 323, which is circulated and slidably disposed in the transverse groove 12, and limit rings 321 are spaced apart on the second circulating chain 323; a second drive unit, which is mounted on the frame 10 and is connected to the second circulating chain 323 in a transmission manner; an encoder, which is mounted on the first drive unit and the second drive unit; and a control center, which is connected in communication with the encoder and the control unit and is connected to the two auxiliary rollers in a transmission manner.

[0035] In this embodiment, a linear guide rail is laid at the bottom of the transverse groove 12. The second circulating chain 323 contacts the guide rail through rollers to achieve low-friction sliding. The limiting ring 321 rotates on the surface of the chain plate, forming a relay conveying structure with the support ring 312 of the first circulating chain 311. The second driving component also adopts a servo motor, which drives the second circulating chain 323 through a gear transmission mechanism. A high-precision absolute encoder is installed at the output shaft end to provide real-time feedback on the chain position information. The control center is an industrial-grade PC controller, installed in an independent control cabinet. It establishes communication with the control unit, the encoders of the first and second driving components, and the drive motors of the two auxiliary rollers via Ethernet. The control center coordinates the start and stop and speed matching of the first circulating chain 311 and the second circulating chain 323 according to parameters such as the winding station status and aluminum foil winding progress. At the same time, it controls the rotation angle and speed of the auxiliary rollers to ensure the continuity of the aluminum foil winding process.

[0036] Furthermore, such as Figures 1 to 4As shown, the position of the support ring 312 and the limiting ring 321 is controlled by the control center to transfer the workpiece from the support ring 312 on the vertical groove 11 to the limiting ring 321 on the horizontal groove 12. The control center is used to control the auxiliary roller to continuously output the workpiece.

[0037] In this embodiment, the control center starts the second circulating chain 323 in advance based on the position information fed back by the encoder, and adjusts its running speed to synchronize with the first circulating chain 311. At this time, the support ring 312 and the limiting ring 321 are misaligned and docked in the junction area. The take-up roller 331 relies on gravity and the inertia of the chain movement to smoothly slide from the support ring 312 into the limiting ring 321. During the aluminum foil winding process, the control center monitors the rotation angle of the two auxiliary rollers and the aluminum foil tension data in real time. When the main take-up roller 331 is close to full winding, the control center starts the auxiliary roller of the auxiliary take-up station in advance, and at the same time controls the slitting component to cut the aluminum foil. The aluminum foil is then guided to the new take-up roller 331 by the rotation of the auxiliary roller, realizing uninterrupted switching and ensuring continuous output of aluminum foil.

[0038] Furthermore, such as Figures 1 to 4 As shown, the slitting assembly includes: a slitting bracket 51 with a slitting groove 52; a slitting blade 53 slidably installed in the slitting groove 52; and a sliding drive component, wherein the slitting blade 53 is connected to the sliding drive component for transmission, and the sliding drive component is connected to the control center for communication.

[0039] In this embodiment, the slitting bracket 51 has a triangular structure and is fixedly installed on the crossbeam of the frame 10 between the two auxiliary rollers. A slitting groove 52 is provided at its top, and a linear guide rail is installed inside the groove. The slitting blade 53 is made of high-speed steel with a beveled blade head. It can slide rapidly horizontally by cooperating with the guide rail in the slitting groove 52 via a slider. The sliding drive is a linear motor. When the control center receives a roll-changing command, it pauses the winding process and simultaneously sends a pulse signal to the sliding drive, causing the linear motor to drive the slitting blade 53 to slit the aluminum foil.

[0040] Furthermore, such as Figures 1 to 4 As shown, the two auxiliary rollers are specifically a first auxiliary roller 14 and a second auxiliary roller 15. A first rotating groove is provided on the frame 10, and the first auxiliary roller 14 is rotatably disposed in the first rotating groove and reciprocates along the first rotating groove. A second rotating groove is provided on the frame 10, and the second auxiliary roller 15 is rotatably disposed in the second rotating groove and reciprocates along the second rotating groove.

[0041] In this embodiment, vertically distributed first and second rotating grooves are machined on both sides of the frame 10. Guide rails are installed in the grooves, and each auxiliary roller is equipped with an independent servo motor. The motor output shaft is connected to the rotating shaft through a coupling. During the normal winding stage, aluminum foil is wound in conjunction with the take-up roller 331. When it is necessary to switch the take-up station, the aluminum foil on the take-up station is placed near the slitting bracket 51 by the guide roller. The control center drives the servo motor of the corresponding auxiliary roller, so that the first auxiliary roller 14 and the second auxiliary roller 15 slide along the first rotating groove and the second rotating groove, guiding the aluminum foil to the slitting bracket 51. The first auxiliary roller 14 and the second auxiliary roller 15 position the aluminum foil on the slitting bracket 51. The slitting knife 53 performs slitting after the winding system is paused. Subsequently, the first auxiliary roller 14 slides and winds the aluminum foil on the first take-up station, and the second auxiliary roller 15 fixes the remaining aluminum foil on the second take-up station, thereby completing the winding and facilitating output from the output port.

[0042] In summary, by setting interconnected vertical grooves 11 and horizontal grooves 12 on the frame 10, and cooperating with the chain conveyor, limit ring 321, and stop column 13, the automatic cyclic conveying and output of the take-up roller 331 is realized; through the coordinated work of the tension roller 41, tension sensor, elastic support, and control unit, dynamic and precise compensation of aluminum foil tension is realized; through the control center's control of the support ring 312, limit ring 321, and auxiliary rollers, seamless handover of the take-up roller 331 and continuous operation of aluminum foil winding are realized; through the slitting bracket 51, slitting blade 53, and sliding drive, rapid and precise cutting of aluminum foil is realized during roll change; through the first auxiliary roller 14, the second auxiliary roller 15, and their rotating grooves, the aluminum foil is guided, positioned, and fixed between different winding stations, ensuring efficient completion of the winding work.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An aluminum foil winding device for aluminum electrolytic capacitors, characterized in that, include: A frame (10) is provided with vertical slots (11) and horizontal slots (12) that are interconnected. The output roller (21) is rotatably mounted on the frame (10); A chain conveyor is installed in the vertical groove (11) and the horizontal groove (12), and an output port is provided on the horizontal groove (12); The limiting ring (321) has a release groove (322). The limiting rings (321) are distributed at intervals on the chain conveyor device, and the release grooves (322) are distributed along a first preset direction. The take-up roller (331) is rotatably installed inside the limiting ring (321). A stop post (13) is provided on the output port. After the limiting ring (321) contacts the stop post (13), it rotates toward the output port. The take-up roller (331) is output along the output port via the release groove (322). Two auxiliary rollers are slidably mounted on the frame (10) and located around the transverse groove (12); The slitting assembly is mounted on the frame (10) and located between the two auxiliary rollers.

2. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 1, characterized in that, Also includes: The tension roller (41) is provided with a groove on the frame (10), the tension roller (41) is rotatably installed in the groove, and the tension roller (41) slides along the groove; A tension sensor is installed on the tension roller (41) to detect the tension value of the aluminum foil; An elastic support member is installed in the groove to drive the tension roller (41) to slide along the groove; The control unit is mounted on the frame (10) and is communicatively connected to the tension sensor and the elastic support.

3. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 2, characterized in that, The chain conveyor device includes: The first circulating chain (311) is circulated and slidably disposed within the vertical groove (11); Support rings (312) are spaced apart on the first circulating chain (311). The support rings (312) are used to snap the workpiece. The support rings (312) drive the workpiece to move along the vertical groove (11). The first drive unit is mounted on the frame (10) and is connected to the first circulating chain (311) via transmission.

4. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 3, characterized in that, The chain conveyor device includes: The second circulating chain (323) is circulated and slidably disposed in the transverse groove (12), and the limiting rings (321) are distributed at intervals on the second circulating chain (323); The second drive unit is mounted on the frame (10) and is connected to the second circulating chain (323) in a transmission manner; The encoder is mounted on the first and second drive components. The control center is communicatively connected to the encoder and the control unit, and is also connected to the two auxiliary roller drives.

5. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 4, characterized in that, The position of the support ring (312) and the limiting ring (321) is controlled by the control center to transfer the workpiece from the support ring (312) on the vertical groove (11) to the limiting ring (321) on the horizontal groove (12). The control center is used to control the auxiliary roller to continuously output the workpiece.

6. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 5, characterized in that, The slitting component includes: The slitting bracket (51) has a slitting groove (52); The slitting blade (53) is slidably installed in the slitting groove (52); The sliding drive is connected to the sliding blade (53) via a transmission connection, and the sliding drive is connected to the control center via a communication connection.

7. The aluminum foil winding equipment for aluminum electrolytic capacitors according to claim 6, characterized in that, The two auxiliary rollers are specifically a first auxiliary roller (14) and a second auxiliary roller (15). A first rotating groove is provided on the frame (10). The first auxiliary roller (14) is rotatably disposed in the first rotating groove and moves back and forth along the first rotating groove. A second rotating groove is provided on the frame (10). The second auxiliary roller (15) is rotatably disposed in the second rotating groove and moves back and forth along the second rotating groove.

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