A winding deviation correction device for aluminum foil for aluminum electrolytic capacitors

By designing a coordinated aluminum foil deviation correction device, the deviation degree of aluminum foil is automatically adjusted to the deviation direction and movement distance, the problem of aluminum foil breaking due to excessive tension during the deviation correction process is solved, and normal winding of aluminum foil and efficient production of capacitors are achieved.

CN119786283AInactive Publication Date: 2025-04-08ANHUI YONGRONG ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202411693613.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-04-08
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing aluminum foil for aluminum electrolytic capacitors is prone to break due to excessive tension during the correction process, and it is impossible to ensure that the aluminum foil is adjusted to the normal conveying position after correction.

Method used

A winding and deviation correction device for aluminum foil for aluminum electrolytic capacitors is designed. Through the coordinated work of the deviation correction component and the conveying component, the deviation direction and movement distance are automatically adjusted by using the deviation degree of the aluminum foil to reduce the tension of the aluminum foil.

Benefits of technology

It effectively avoids the aluminum foil breaking due to excessive tension during the correction process, ensures that the aluminum foil can be wound normally, and improves the production efficiency and product quality of the capacitor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of aluminum electrolytic capacitors, and in particular to a winding deviation correction device for aluminum foil for aluminum electrolytic capacitors, comprising: a support platform; a deviation correction component, wherein the deviation correction component comprises a rotating plate driven to rotate at the upper end, and two rotating columns are symmetrically installed on the inner wall of the rotating plate, and the two rotating columns are connected with a transmission. The present invention connects a first conductive ring and a second energized ring or a second conductive ring and a first energized ring through an offset aluminum foil to energize, and the degree of offset determines the size of the combined flow of multiple deviation correction branches in the deviation correction circuit through the electromagnet, and the current of the appropriate size causes the electromagnet to generate a corresponding electromagnetic strength to drive the fixed barrel to rotate in a certain rotation direction, and the fixed barrel will drive the rotating plate to rotate, so the degree of offset of the aluminum foil is used to drive the rotating plate to rotate to the same degree, thereby generating a corresponding magnitude of deviation correction component force to perform appropriate deviation correction on the aluminum foil.
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Description

Technical Field

[0001] The invention relates to the technical field of aluminum electrolytic capacitors, and in particular to a winding deviation correction device for aluminum foil used in aluminum electrolytic capacitors. Background Art

[0002] Aluminum electrolytic capacitor is a common polar capacitor, which is mainly composed of aluminum foil anode, electrolyte and cathode. In the circuit, it allows charge to pass through the electrolyte to form a capacitive effect. This capacitor is suitable for electronic applications that require higher capacitance and relatively low cost, such as power supply filtering, coupling and decoupling.

[0003] After searching, publication number CN115763083A discloses an aluminum foil winding correction device for aluminum electrolytic capacitors, including a frame, two active rollers are installed on the frame at intervals on the left and right, and a plurality of conductive belt groups are embedded on the active rollers, each conductive belt group includes a first conductive belt and a second conductive belt, each first conductive belt is arranged at one end of the active roller in sequence along the axial direction, and each second conductive belt is arranged at the other end of the active roller in sequence along the axial direction. One side edge of the aluminum foil is placed between two adjacent first conductive belts, and the other side edge of the aluminum foil is placed between two adjacent second conductive belts; an indicator light is connected in series with the first conductive belt and the second conductive belt in the same group; a lifting mechanism is installed on the frame, and a clamping roller is rotatably installed on the lifting mechanism; a clamping mechanism is used to clamp the aluminum foil to reset; a controller, and the driving mechanism, the lifting mechanism, and the clamping mechanism are all electrically connected to the controller.

[0004] Aluminum foil is a relatively easy-to-break material, mainly because the characteristics of aluminum foil determine its brittleness and easy-to-tear characteristics. During the transmission of aluminum foil, improper tension control, material quality problems and environmental factors will cause the aluminum foil to deviate during transmission. When the aluminum foil is transmitted, the aluminum foil between the conveying end and the winding end must be in a relatively large and tight state of tension to prevent wrinkles. In the process of correcting the deviation of the aluminum foil in the above patent, the aluminum foil is directly corrected, and the degree of deviation of the aluminum foil is different each time. Even after the correction, it cannot be guaranteed that the aluminum foil can be adjusted to the normal conveying position. When the aluminum foil is in a relatively large and tight state of tension, it may cause the aluminum foil to break at a position where the deviation angle is too large due to uneven force, and it is also easy to cause the aluminum foil to break at the offset during the correction process, resulting in subsequent inability to wind normally. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a winding correction device for aluminum foil for aluminum electrolytic capacitors, which can effectively solve the problem that the aluminum foil in the tension and taut state is prone to breakage at the offset during the correction process of the aluminum foil in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a winding deviation correction device for aluminum foil for aluminum electrolytic capacitors, comprising: Support table; A deviation correction component, the deviation correction component comprises a rotating plate driven to rotate at the upper end of the support platform, two rotating columns are symmetrically installed on the inner wall of the rotating plate, the two rotating columns are connected with a transmission, and the two rotating columns are driven to rotate; A conveying assembly, the conveying assembly is used to support and convey the aluminum foil, and the aluminum foil is wound and pulled in the length direction of the support platform by the conveying assembly, the conveying assembly includes a second conveying roller, one end edge of the second conveying roller is embedded with a plurality of second energized rings, the other end edge of the second conveying roller is embedded with a plurality of first energized rings, the outer wall of the second conveying roller and the position close to the first energized ring is embedded with a first conductive ring, and the outer wall of the second conveying roller and the position close to the second energized ring is embedded with a second conductive ring; Control circuit; Wherein, the conveying component utilizes the deviation of the aluminum foil and the control circuit to automatically adjust the rotation direction of the deviation correction component and the moving distance of the conveying component during the process of conveying the aluminum foil.

[0007] Preferably, the correcting assembly includes a support plate fixedly mounted on one side of the support platform, the upper end surface of the support plate is fixedly mounted with a support column, the first rotating head is rotatably mounted at an upper position of the outer wall of the support column, the first rotating head is fixedly connected to the rotating plate at a side away from the support column, and a driving source for driving one of the rotating columns is installed on the rotating plate, and a mounting base is fixedly mounted at a central position of the upper end surface of the support platform, and a fixed barrel is rotatably mounted on the upper end of the mounting base, and a second rotating head is fixedly mounted on the upper end of the fixed barrel, a second connecting rod is fixedly mounted on the outer wall of the second rotating head and at a position away from the support column, a linkage rod is sleeved on the outer wall of the second connecting rod at a position away from the second rotating head, and the top of the linkage rod is rotatably connected to the rotating plate, an iron block is fixedly mounted at a position of the inner wall of the fixed barrel away from the support column, and an electromagnet is symmetrically fixedly mounted at a position on the upper end surface of the mounting base away from the iron block.

[0008] Preferably, pillars are symmetrically installed on the upper end surface of the support platform at a position away from the mounting base, a mounting block is sleeved on the outer wall of the second connecting rod at a position away from the linkage rod, and a second spring is fixedly installed on the side opposite to the pillar and the mounting block.

[0009] Preferably, the conveying assembly also includes a moving frame, the inner top linear array of the moving frame has a plurality of connecting columns, the connecting column is composed of a long shaft and a limit plate fixed up and down, the outer wall of the long shaft is slidably mounted with a connecting frame, a first spring is sleeved at the lower position of the outer wall of the long shaft, two ends of the first spring are respectively fixed to the limit plate and the connecting frame, a pair of clamping rollers are rotatably mounted on the inner bottom end of the connecting frame, and the first conveying roller is rotatably mounted at the lower position of the inner wall of the moving frame, two first support rods are symmetrically mounted on the side of the moving frame close to the rotating plate, the two first support rods are rotatably connected to the second conveying roller, the first connecting rod is fixedly mounted on the side of the moving frame away from the second conveying roller, the first connecting rod is fixedly mounted on the lower end surface of the moving frame away from the first connecting rod, and a feeding roller is rotatably mounted on the side of the first connecting block close to the second conductive ring, and the feeding roller is used to release the aluminum foil.

[0010] Preferably, it also includes a moving component, which includes a second support rod fixed on a side of the support platform away from the rotating plate, a baffle plate fixedly installed on the side of the second support rod away from the support platform, an electromagnetic push rod fixedly installed on the side of the baffle plate close to the support platform, a sliding box fixedly installed at a position of the upper end surface of the support platform away from the rotating plate, a side of the sliding box close to the baffle plate is connected to a gas storage barrel, a piston plate is airtightly slidably installed on the inner wall of the gas storage barrel, a fourth spring is fixedly installed on the inner wall of the piston plate opposite to the gas storage barrel, the telescopic end of the electromagnetic push rod passes through the gas storage barrel and is fixedly connected to the piston plate, a sliding plate is airtightly slidably installed on the inner wall of the sliding box, a moving tube is connected to the side of the sliding plate away from the gas storage barrel, a connector is sleeved at a position of the outer wall of the moving tube away from the sliding plate, a connecting plate is fixedly installed on the side of the connecting head close to the sliding plate, the upper end surface of the connecting plate is fixedly connected to the moving frame, a third spring is sleeved on the outer wall of the moving tube, and both ends of the third spring are respectively fixed to the sliding plate and the sliding box, and the inner diameter of the gas storage barrel is larger than the outer diameter of the moving tube.

[0011] Preferably, two ventilation joints are symmetrically installed on the upper end surface of the first support rod at a position away from the movable frame, the upper end surfaces of the two ventilation joints are connected to an air outlet plate, and the lower end surface of the air outlet plate is provided with a plurality of air outlet holes in a linear array, and the end of the movable tube away from the sliding plate is connected to a hose, and both ends of the hose are connected to connecting pipes, which pass through the first support rod and are connected to the ventilation joints.

[0012] Preferably, the control circuit includes: the second energized ring is connected in series with a first resistor to form a first deflection measuring branch, the first energized ring is connected in parallel with the first resistor to form a second deflection measuring branch, a third electromagnet, a first DC power supply, and a second conductive ring are connected in series after multiple first deflection measuring branches are connected in parallel and multiple second deflection measuring branches are connected in parallel, the aluminum foil in a biased state can contact the second conductive ring and at least one second energized ring to form a first deflection measuring circuit, and the aluminum foil in a biased state can contact the first conductive ring and at least one first energized ring to form a second deflection measuring circuit; The third electromagnet is magnetically coupled with a second connecting block, a fifth spring is fixed to a side of the third electromagnet facing the second connecting block, the second connecting block is connected to a conductive rod via a sliding rod, the sliding rod is slidably connected to a movable guide rail, and the movable guide rail is fixedly arranged; The control circuit also includes two groups of second resistors and electrical contacts connected in series to form a correction branch. After the two groups of correction branches are connected in parallel, they are both connected in series with the first electromagnetic push rod, the third DC power supply, and the electromagnet to form a correction circuit. The conductive rod can contact at least one electrical contact in each group, and the current directions in the two correction circuits are opposite.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: First, the first conductive ring and the second energized ring or the second conductive ring and the first energized ring are connected through the offset aluminum foil to conduct electricity, and the offset degree determines the size of the combined current of multiple correction branches in the correction circuit that flows through the electromagnet. The current of the appropriate magnitude causes the electromagnet to generate a corresponding electromagnetic strength to drive the fixed barrel to rotate in a certain rotation direction, and the fixed barrel drives the rotating plate to rotate. Therefore, the degree of aluminum foil offset drives the rotating plate to rotate to the same degree, thereby generating a corresponding magnitude of correction component force to perform appropriate correction on the aluminum foil; Secondly, the confluence caused by the different degrees of deviation of the aluminum foil is conveyed to the electromagnetic push rod to drive the mobile frame to move, shorten the distance between the first conveying roller and the winding end, and adjust the tension of the aluminum foil between the aluminum foil conveying end and the winding end to avoid the aluminum foil from breaking due to tension and the easy breakage of the aluminum foil when it is offset or corrected, which will affect the winding of the aluminum foil of the aluminum electrolytic capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the conveying assembly of the present invention; Figure 3 It is a schematic structural diagram of the second conveying roller of the present invention; Figure 4 It is a schematic diagram of the structure of the connecting frame of the present invention; Figure 5 It is a schematic diagram of the structure of the correction component of the present invention; Figure 6 It is a bottom view structural schematic diagram of the deviation correction component of the present invention; Figure 7 It is a schematic diagram of the internal structure of the fixed barrel of the present invention; Figure 8 It is a schematic diagram of the structure of the mobile component of the present invention; Fig. 9 It is a schematic diagram of the structure of the gas storage barrel of the present invention; Fig.10 It is a schematic diagram of the exploded structure of the gas storage barrel of the present invention; Fig.11 It is a schematic diagram of the control circuit structure of the present invention.

[0016] 1. Support table; 2. Conveying assembly; 201. Moving frame; 202. First conveying roller; 203. First supporting rod; 204. Second conveying roller; 205. First conductive ring; 206. Second conductive ring; 207. First energizing ring; 208. Second energizing ring; 209. Connecting column; 210. Connecting frame; 211. First spring; 212. Clamping roller; 213. First connecting rod; 214. First connecting block; 215. Discharging roller; 3. Correction assembly; 301. Support plate; 302. Support column; 303. First rotating head; 304. Rotating plate; 305. Rotating column; 306. Driving source; 307. Mounting base; 308. Fixed barrel; 309. Second rotating head; 310. Second connecting rod; 311. Linkage rod ; 312, mounting block; 313, support; 314, second spring; 315, iron block; 316, electromagnet; 4, moving assembly; 401, second support rod; 402, baffle; 403, electromagnetic push rod; 404, gas storage barrel; 405, sliding box; 406, piston plate; 407, sliding plate; 408, moving tube; 409, third spring; 410, connector; 411, connecting plate; 412, hose; 413, connecting tube; 414, ventilation connector; 415, air outlet plate; 416, fourth spring; 5, control circuit; 501, first resistor; 502, third electromagnet; 503, fifth spring; 504, second connecting block; 505, moving guide rail; 506, conductive rod; 507, electrical contact; 508, second resistor. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] Example: Refer to Figures 1 to 11 , a winding deviation correction device for aluminum foil for aluminum electrolytic capacitors, comprising: Support table 1; The deviation-correcting component 3 includes a rotating plate 304 driven to rotate at the upper end of the support platform 1, and two rotating columns 305 are symmetrically installed on the inner wall of the rotating plate 304. The two rotating columns 305 are connected with a transmission, and the two rotating columns 305 are driven to rotate; The conveying assembly 2 is used to support and convey the aluminum foil, and the aluminum foil is wound and pulled in the length direction of the support platform 1 by the conveying assembly 2. The conveying assembly 2 includes a second conveying roller 204, and a plurality of second power-carrying rings 208 are embedded in the edge of one end of the second conveying roller 204, and a plurality of first power-carrying rings 207 are embedded in the edge of the other end of the second conveying roller 204. A first conductive ring 205 is embedded in the outer wall of the second conveying roller 204 and close to the first power-carrying ring 207, and a second conductive ring 206 is embedded in the outer wall of the second conveying roller 204 and close to the second power-carrying ring 208; Control circuit 5; The conveying component 2 utilizes the deviation of the aluminum foil and the control circuit 5 to automatically adjust the rotation direction of the deviation correction component 3 and the moving distance of the conveying component 2 during the process of conveying the aluminum foil.

[0020] When adjusting the offset aluminum foil, the rotating plate 304 is driven to rotate, so that the two rotating columns 305 adjust the rotation angle to adjust the offset aluminum foil, thereby driving the aluminum foil to return to the original position and be transported.

[0021] Reference Figures 5 to 7The deviation correction component 3 includes a support plate 301 fixedly installed on one side of the support platform 1, a support column 302 is fixedly installed on the upper end surface of the support plate 301, a first rotating head 303 is rotatably installed at the upper position of the outer wall of the support column 302, and the first rotating head 303 is fixedly connected to the rotating plate 304 on the side away from the support column 302, and a driving source 306 for driving one of the rotating columns 305 is installed on the rotating plate 304, and a mounting base 307 is fixedly installed at the central position of the upper end surface of the support platform 1, and a fixed Barrel 308, a second rotating head 309 is fixedly installed on the upper end of the fixed barrel 308, a second connecting rod 310 is fixedly installed on the outer wall of the second rotating head 309 and at a position away from the support column 302, a linkage rod 311 is sleeved on the outer wall of the second connecting rod 310 away from the second rotating head 309, the top of the linkage rod 311 is rotatably connected to the rotating plate 304, an iron block 315 is fixedly installed on the inner wall of the fixed barrel 308 away from the support column 302, and an electromagnet 316 is symmetrically fixedly installed on the upper end surface of the mounting base 307 away from the iron block 315.

[0022] By setting the fixed barrel 308 , the rotating plate 304 is driven to rotate when the fixed barrel 308 is driven to rotate, so that the aluminum foil is corrected by the rotating plate 304 .

[0023] Reference Figure 6 A support column 313 is symmetrically installed at a position on the upper end surface of the support platform 1 away from the mounting base 307, and a mounting block 312 is sleeved on the outer wall of the second connecting rod 310 away from the linkage rod 311. A second spring 314 is fixedly installed on the side opposite to the support column 313 and the mounting block 312.

[0024] By setting the second spring 314 , after the rotation correction of the rotating plate 304 is completed, the second spring 314 can drive the rotating plate 304 to return to the normal position, so that the rotating column 305 can restore the normal conveying angle to convey the aluminum foil.

[0025] Reference Figures 2 to 4The conveying assembly 2 also includes a moving frame 201. The inner top linear array of the moving frame 201 has a plurality of connecting columns 209. The connecting column 209 is composed of a long shaft and a limit plate fixed up and down. A connecting frame 210 is slidably installed on the outer wall of the long shaft. A first spring 211 is sleeved at the lower position of the outer wall of the long shaft. The two ends of the first spring 211 are respectively fixed to the limit plate and the connecting frame 210. A clamping roller 212 is rotatably installed at the inner bottom end of the connecting frame 210. A first conveying roller 20 is rotatably installed at the lower position of the inner wall of the moving frame 201. 2. Two first support rods 203 are symmetrically installed on one side of the mobile frame 201 close to the rotating plate 304, and the two first support rods 203 are rotatably connected to the second conveying roller 204. A first connecting rod 213 is fixedly installed on the side of the mobile frame 201 away from the second conveying roller 204, and a first connecting block 214 is fixedly installed on the lower end surface of the first connecting rod 213 away from the mobile frame 201. A discharge roller 215 is rotatably installed on the side of the first connecting block 214 close to the second conductive ring 206, and the discharge roller 215 is used to release the aluminum foil.

[0026] By disposing the first conveying roller 202 and the second conveying roller 204 , the first conveying roller 202 and the second conveying roller 204 can support and move the aluminum foil when the aluminum foil is being conveyed.

[0027] Reference Figures 9 and 10 , also includes a moving component 4, the moving component 4 includes a second support rod 401 fixed on the side of the support platform 1 away from the rotating plate 304, a baffle 402 is fixedly installed on the side of the second support rod 401 away from the support platform 1, an electromagnetic push rod 403 is fixedly installed on the side of the baffle 402 close to the support platform 1, a sliding box 405 is fixedly installed at a position of the upper end surface of the support platform 1 away from the rotating plate 304, the side of the sliding box 405 close to the baffle 402 is connected to the gas storage barrel 404, a piston plate 406 is airtightly slidably installed on the inner wall of the gas storage barrel 404, a fourth spring 416 is fixedly installed on the inner wall of the piston plate 406 opposite to the gas storage barrel 404, and the extension and contraction of the electromagnetic push rod 403 The end passes through the gas storage barrel 404 and is fixedly connected to the piston plate 406. The inner wall of the sliding box 405 is airtightly slidably installed with a sliding plate 407. The side of the sliding plate 407 away from the gas storage barrel 404 is connected to a moving tube 408. A connecting head 410 is sleeved at a position of the outer wall of the moving tube 408 away from the sliding plate 407. A connecting plate 411 is fixedly installed on the side of the connecting head 410 close to the sliding plate 407. The upper end surface of the connecting plate 411 is fixedly connected to the moving frame 201. A third spring 409 is sleeved on the outer wall of the moving tube 408. The two ends of the third spring 409 are respectively fixed to the sliding plate 407 and the sliding box 405. The inner diameter of the gas storage barrel 404 is larger than the outer diameter of the moving tube 408.

[0028] By setting the electromagnetic push rod 403, the electromagnetic push rod 403 can drive the movable frame 201 to move when the aluminum foil deviates, so as to reduce the tension of the aluminum foil and avoid the aluminum foil from breaking.

[0029] Reference Fig.10 Two ventilation joints 414 are symmetrically installed at the position of the upper end surface of the first support rod 203 away from the movable frame 201, the upper end surfaces of the two ventilation joints 414 are connected to the air outlet plate 415, and the lower end surface of the air outlet plate 415 is provided with a plurality of air outlet holes in a linear array, and the end of the movable tube 408 away from the sliding plate 407 is connected to the hose 412, and the two ends of the hose 412 are connected to the connecting pipes 413, which pass through the first support rod 203 and are connected to the ventilation joints 414.

[0030] By setting the gas outlet plate 415 , when the electromagnetic push rod 403 drives the movable frame 201 to move, the extra gas generated can be sprayed to the surface of the aluminum foil through the gas outlet plate 415 to cool it down.

[0031] Reference Fig.11 The control circuit 5 includes: a second energized ring 208 is connected in series with a first resistor 501 to form a first deflection detection branch, a first energized ring 207 is connected in parallel with the first resistor 501 to form a second deflection detection branch, a plurality of first deflection detection branches connected in parallel and a plurality of second deflection detection branches connected in parallel are connected in series with a third electromagnet 502, a first DC power supply, and a second conductive ring 206, an aluminum foil in a biased state can contact the second conductive ring 206 and at least one second energized ring 208 to form a first deflection detection circuit, and an aluminum foil in a biased state can contact the first conductive ring 205 and at least one first energized ring 207 to form a second deflection detection circuit; The third electromagnet 502 is magnetically coupled with a second connecting block 504, a fifth spring 503 is fixed to one side of the third electromagnet 502 facing the second connecting block 504, the second connecting block 504 is connected to a conductive rod 506 via a sliding rod, the sliding rod is slidably connected to a movable guide rail 505, and the movable guide rail 505 is fixedly arranged; The control circuit 5 also includes two groups of second resistors 508 and electrical contacts 507 connected in series to form a correction branch. After the two groups of correction branches are connected in parallel, they are both connected in series with the first electromagnetic push rod 403, the third DC power supply, and the electromagnet 316 to form a correction circuit. The conductive rod 506 can contact at least one electric contact 507 in each group of electric contacts 507, and the current directions in the two correction circuits are opposite.

[0032] The working principle of the present invention is as follows: By placing the aluminum foil on the unwinding roller 215, the other end of the aluminum foil is wound and pulled for transmission, and the transmitted aluminum foil will contact the surfaces of the first conveying roller 202, the second conveying roller 204, and the rotating column 305, and the lower surface of the aluminum foil will contact the surface of the first conveying roller 202, and the upper surface of the aluminum foil will contact the clamping roller 212, and the aluminum foil will be transmitted between the first conveying roller 202 and the clamping roller 212. The different thickness of the raw material of the aluminum foil is one of the main reasons for the deviation of the aluminum foil. In order to avoid deflection to a certain extent, the clamping roller 212, the connecting column 209, the first spring 211, etc. are additionally provided. When the thicker portion of the aluminum foil is conveyed between the first conveying roller 202 and the clamping roller 212, the aluminum foil will squeeze the clamping roller 212. When the clamping roller 212 is squeezed and raised, it will drive the connecting frame 210 to slide and rise on the outer wall of the connecting column 209, and compress the first spring 211 at the same time. Compared with the complete conveying roller, the segmented structural design reduces the friction coefficient between the thicker portion of the aluminum foil and the first conveying roller 202 and the clamping roller 212 during conveyance, and to a certain extent avoids the thicker portion of the aluminum foil from being conveyed between the first conveying roller 202 and the clamping roller 212. When the thicker portion of the aluminum foil is conveyed between the first conveying roller 202 and the clamping roller 212, the larger lateral force is generated due to the larger friction coefficient at the thicker position, resulting in the overall deviation of the aluminum foil; Once the aluminum foil deviates during the conveying process on the surface of the second conveying roller 204, the side of the aluminum foil will contact the first conductive ring 205 and the second conductive ring 206. The first conductive ring 205 and the second conductive ring 206 are embedded on the outer wall of the second conveying roller 204. The second conveying roller 204 can be provided with multiple different models. The difference in the models of the second conveying roller 204 mainly lies in the difference in width between the first conductive ring 205 and the second conductive ring 206. The corresponding model of the second conveying roller 204 can be selected and replaced according to the width of the aluminum foil. When the aluminum foil is deflected during the transmission process, one side of the aluminum foil will contact the second conductive ring 206 or the first conductive ring 205, and the outer edge (the other side of the aluminum foil) will contact at least one first energized ring 207 or at least one second energized ring 208 (the number of contacts with the first energized ring 207 or the second energized ring 208 depends on the degree of deflection of the aluminum foil). During the deflection of the aluminum foil, the first deflection detection circuit or the second deflection detection circuit is turned on, and the third electromagnet 502 is connected to the deflection correction branch to be energized. The third electromagnet 502 generates a magnetic field by being energized ( The deflection degree of the confluent aluminum foil during deflection is proportional to the size of the confluent flow / the size of the magnetic field generated by the third electromagnet 502). The third electromagnet 502 magnetically attracts the second connecting block 504 to approach and compress the fifth spring 503. It should be noted that when one side of the aluminum foil is deflected and the first conductive ring 205 and the second power-on ring 208 are energized, the third electromagnet 502 will attract the second connecting block 504 downward, and when the other direction of the aluminum foil is deflected and the second conductive ring 206 and the first power-on ring 207 are energized, the third electromagnet 502 will attract The second connecting block 504 is upward. When the second connecting block 504 moves upward or downward, it will slide on the movable guide rail 505 through the sliding rod and drive the conductive rod 506 to move. When the conductive rod 506 moves upward or downward, it will contact the electrical contact 507, and the current of the correction branch will be transmitted to the correction circuit through the conductive rod 506 and the electrical contact 507. There are two correction circuits, one for each of the conductive rod 506 moving upward or downward. The two correction circuits are respectively connected to the electromagnetic push rod 403 and the electromagnet 316 (such as Fig.11 shown); It should be noted that there are multiple second power-on rings 208 and first power-on rings 207, and the offset aluminum foil realizes different contact areas with the second power-on rings 208 or the first power-on rings 207 through the offset angle. When contacting the second power-on ring 208 or the first power-on ring 207, the aluminum foil first contacts the first power-on ring that is closest to the second power-on ring 208 and the first power-on ring 207, and during the aluminum foil offset process, it will gradually contact the second power-on ring 208 or the first power-on ring 207 that is farther away. The degree of deflection is proportional to the number of the second power-on rings 208 or the first power-on rings 207 that are contacted. In this process, the aluminum foil contacts the power-on rings ( The more the second power-on ring 208 or the first power-on ring 207 is, the greater the combined current is (the greater the combined power is, the greater the angle of the aluminum foil deviation is), and the current can be transmitted to the third electromagnet through the wire, the greater the magnetic force of the third electromagnet is, the greater the distance of attracting the second connection block 504 to move, and the movement of the second connection block 504 can drive the conductive rod 506 to move, and the conductive rod 506 is driven by the second connection block 504 to contact the electrical contact 507, and the more the second connection block 504 contacts with the multiple set electrical contacts 507, the greater the combined current is, and the setting of the first resistor 501 and the second resistor 508 can effectively prevent power overload; After the electromagnet 316 inside the fixed barrel 308 is energized, the electromagnet 316 and the magnetic iron block 315 that generates an electromagnetic field will drive the fixed barrel 308 to rotate on the upper end surface of the mounting base 307. When the aluminum foil offsets and contacts the series circuit of the first conductive ring 205 and the second energized ring 208, the series circuit will energize the electromagnet 316 inside the fixed barrel 308. After being energized, the electromagnet 316 will attract the iron block 315 to approach and drive the fixed barrel 308 to rotate through the magnetic force generated. The rotation direction of the fixed barrel 308 is opposite to the offset direction of the aluminum foil. When the fixed barrel 308 rotates, it will drive the second rotating head 309 and the second connecting rod 310 to rotate. The second connecting rod 310 drives the rotating plate 304 to rotate through the linkage rod 311. When rotating, the rotating plate 304 is supported and rotated on the upper end surface of the support plate 301 through the first rotating head 303 and the support column 302, and is driven by the driving source 306 to transmit the aluminum foil with a belt transmission connection between the two rotating columns 305. Through the rotation angle of the fixed barrel 308 opposite to the offset aluminum foil, the rotating plate 304 is also driven to drive the rotating column 305 to rotate in the opposite direction, thereby driving the offset aluminum foil to return to the normal state. Similarly, when the aluminum foil is offset and contacts the first power-on ring 207, the rotating plate 304 is driven to rotate in the opposite direction of the first conductive ring 205 and the first power-on ring 207 to drive the aluminum foil to return to the normal state. It should be noted that the magnitude of the combined electric quantity is determined according to the degree of deviation of the aluminum foil, and the magnitude of the magnetic field generated by the different magnitudes of electric quantity and current transmitted to the electromagnet 316 or the second electromagnet is different. Therefore, the different magnitudes of the magnetic field generated by the electromagnet 316 or the second electromagnet drive the fixed barrel 308 to rotate at different amplitudes, and a dynamic balance is formed under the magnetic attraction and the spring tension. Therefore, the device can drive the rotating plate 304 to rotate at the same amplitude according to the deviation of the aluminum foil to correct the deviation of the aluminum foil; In summary, when the aluminum foil is deflected, the aluminum foil will be energized by connecting the second conductive ring 206 and the first energized ring 207 or the first conductive ring 205 and the second energized ring 208, and the energized current will be transmitted to the third electromagnet 502, so that the third electromagnet 502 generates an electromagnetic field to attract the second connecting block 504 to approach and compress the fifth spring 503 to make contact. The current transmitted in this process is a relatively small current. During the movement, the second connection block 504 will drive the conductive rod 506 to move and contact the electrical contact 507 to conduct electricity (in this process, a relatively large current is used. According to the above, a relatively large current is controlled by a relatively small current to be transmitted, so as to avoid the aluminum foil being used in series with an electrical component that requires a relatively large current, which may cause the aluminum foil to heat up or burn due to excessive current flowing through the aluminum foil). The second connection block 504 is moved to connect different deviation correction circuits according to the deviation direction of the aluminum foil. Different deviation correction circuits will drive the rotating plate 304 to rotate in different directions (according to the above content, the rotation direction of the rotating plate 304 is consistent with the deviation direction of the aluminum foil). The deviation degree of the aluminum foil will also cause the rotating plate 304 to rotate to different degrees, so as to correct the deviation of the aluminum foil. After the deviation-correcting aluminum foil is corrected, the circuit is disconnected when the aluminum foil no longer contacts the first power-on ring 207 or the second power-on ring 208, and the power supply to the electromagnet 316 is stopped. Then, the two second springs 314 are connected to the mounting block 312 to drive the rotating plate 304 to correct. According to the above, when the electromagnetic push rod 403 is energized, the two telescopic ends (such as Fig. 9As shown in the figure, two series circuits are respectively connected to each other for power-on (the magnitude of the input current to the electromagnetic push rod 403 can be determined by the degree of displacement of the aluminum foil when power is on). When one of the series circuits is powered on, the telescopic end will be driven to push the piston plate 406 to slide inside the gas storage barrel 404 to compress the fourth spring 416, and the air inside the gas storage barrel 404 will be pushed by the piston plate 406 to be transmitted to the inside of the sliding box 405. When the air is transmitted to the inside of the sliding box 405, it will be discharged from the inside of the moving tube 408. The inner diameter of the piston plate 406 is larger than the inner diameter of the moving tube 408. The air pushed into the gas storage barrel 404 will be discharged from the moving tube 408. The air forms an air volume difference, pushing the sliding plate 407, the moving tube 408 and the connecting head 410 to slide airtightly on the inner wall of the sliding box 405, and the connecting head 410 drives the moving frame 201 to move while being connected to the moving frame 201 during movement (in this process, the moving distance of the moving frame 201 pushed by the telescopic end is determined by inputting different amounts of electricity to the electromagnetic push rod 403, shortening the distance with the winding end, and reducing the tension of the aluminum foil), thus reducing the tension of the aluminum foil during the deviation of the aluminum foil, so that the aluminum foil gradually changes from a taut state to a relaxed state, so that the aluminum foil can be effectively prevented from breaking during the deviation of the aluminum foil and the above-mentioned deviation correction process; It should be noted that the series circuit connects the two telescopic ends of the electromagnetic push rod 403. No matter which of the series circuits is energized, the two telescopic ends of the electromagnetic push rod 403 will push the piston plate 406 to slide inside the gas storage barrel 404. When the series circuit stops supplying power, the compressed fourth spring 416 will drive the piston plate 406 to reset inside the gas storage barrel 404 with its own elastic force. When the air is discharged to the outside through the moving tube 408, it will be collected by the hose 412 and transmitted to the connecting tube 413, and the connecting tube 413 will transmit to the inside of the air outlet plate 415 through the connecting vent joint 414, and the air will be sprayed to the surface of the aluminum foil through the air outlet holes opened in the air outlet plate 415 to cool the aluminum foil. It should be noted that the aluminum foil will generate heat due to resistance when it is powered on, and the exhaust air is recycled and sprayed to the aluminum foil through the air outlet plate 415, which can effectively reduce the heat generated by the aluminum foil when it is powered on, avoid damage to the aluminum foil, and affect subsequent use.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A winding deviation correction device for aluminum foil for aluminum electrolytic capacitors, characterized in that: include: Support table (1); A deviation-correcting component (3), the deviation-correcting component (3) comprising a rotating plate (304) driven to rotate at the upper end of the support platform (1), two rotating columns (305) being symmetrically mounted on the inner wall of the rotating plate (304), the two rotating columns (305) being connected by a belt transmission, and the two rotating columns (305) being driven to rotate; A conveying assembly (2), the conveying assembly (2) being used to support and convey aluminum foil, and the aluminum foil is wound by the conveying assembly (2) and pulled in the length direction of the support platform (1), the conveying assembly (2) comprising a second conveying roller (204), a plurality of second power-carrying rings (208) being embedded in an edge of one end of the second conveying roller (204), a plurality of first power-carrying rings (207) being embedded in an edge of the other end of the second conveying roller (204), a first conductive ring (205) being embedded in an outer wall of the second conveying roller (204) at a position close to the first power-carrying ring (207), and a second conductive ring (206) being embedded in an outer wall of the second conveying roller (204) at a position close to the second power-carrying ring (208); Control circuit (5); The conveying component (2) automatically adjusts the rotation direction of the deviation-correcting component (3) and the moving distance of the conveying component (2) by utilizing the deviation of the aluminum foil and the control circuit (5) during the process of conveying the aluminum foil.

2. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitor according to claim 1, characterized in that: The deviation correction component (3) comprises a support plate (301) fixedly mounted on one side of the support platform (1); a support column (302) is fixedly mounted on the upper end surface of the support plate (301); a first rotating head (303) is rotatably mounted at an upper position of an outer wall of the support column (302); a side of the first rotating head (303) away from the support column (302) is fixedly connected to a rotating plate (304); a driving source (306) for driving one of the rotating columns (305) is mounted on the rotating plate (304); a mounting base (307) is fixedly mounted at a central position of the upper end surface of the support platform (1); a fixed barrel (307) is rotatably mounted on the upper end of the mounting base (307); (308), a second rotating head (309) is fixedly mounted on the upper end of the fixed barrel (308), a second connecting rod (310) is fixedly mounted on the outer wall of the second rotating head (309) at a position away from the support column (302), a linkage rod (311) is sleeved on the outer wall of the second connecting rod (310) at a position away from the second rotating head (309), the top end of the linkage rod (311) is rotatably connected to the rotating plate (304), an iron block (315) is fixedly mounted on the inner wall of the fixed barrel (308) at a position away from the support column (302), and an electromagnet (316) is symmetrically fixedly mounted on the upper end surface of the mounting base (307) at a position away from the iron block (315).

3. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitor according to claim 1, characterized in that: A support column (313) is symmetrically mounted on the upper end surface of the support platform (1) at a position away from the mounting base (307); a mounting block (312) is sleeved on the outer wall of the second connecting rod (310) at a position away from the linkage rod (311); and a second spring (314) is fixedly mounted on a side of the support column (313) opposite to the mounting block (312).

4. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitor according to claim 1, characterized in that: The conveying assembly (2) further comprises a moving frame (201), wherein a plurality of connecting columns (209) are provided in a linear array at the inner top end of the moving frame (201), wherein the connecting columns (209) are composed of a long shaft and a limit plate fixed up and down, wherein a connecting frame (210) is slidably mounted on the outer wall of the long shaft, wherein a first spring (211) is sleeved at a lower position of the outer wall of the long shaft, wherein the two ends of the first spring (211) are respectively fixed to the limit plate and the connecting frame (210), wherein a clamping roller (212) is rotatably mounted at the inner bottom end of the connecting frame (210), and a first conveying roller (202) is rotatably mounted at a lower position of the inner wall of the moving frame (201). ), two first support rods (203) are symmetrically mounted on one side of the mobile frame (201) close to the rotating plate (304), the two first support rods (203) are rotatably connected to the second conveying roller (204), a first connecting rod (213) is fixedly mounted on the side of the mobile frame (201) away from the second conveying roller (204), a first connecting block (214) is fixedly mounted on the lower end surface of the first connecting rod (213) away from the mobile frame (201), and a discharge roller (215) is rotatably mounted on the side of the first connecting block (214) close to the second conductive ring (206), the discharge roller (215) being used to release the aluminum foil.

5. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitor according to claim 1, characterized in that: The movable assembly (4) further comprises a second support rod (401) fixed to a side of the support platform (1) away from the rotating plate (304); a baffle (402) is fixedly mounted on the side of the second support rod (401) away from the support platform (1); an electromagnetic push rod (403) is fixedly mounted on the side of the baffle (402) close to the support platform (1); a sliding box (405) is fixedly mounted at a position of the upper end surface of the support platform (1) away from the rotating plate (304); a side of the sliding box (405) close to the baffle (402) is connected to a gas storage barrel (404); a piston plate (406) is airtightly slidably mounted on the inner wall of the gas storage barrel (404); a fourth spring (416) is fixedly mounted on the inner wall of the piston plate (406) on a side opposite to the gas storage barrel (404); and the extension and retraction of the electromagnetic push rod (403) is controlled by the piston plate (406). The end of the sliding box (405) passes through the gas storage barrel (404) and is fixedly connected to the piston plate (406); a sliding plate (407) is airtightly slidably mounted on the inner wall of the sliding box (405); a side of the sliding plate (407) away from the gas storage barrel (404) is connected to a moving tube (408); a connector (410) is sleeved at a position of the outer wall of the moving tube (408) away from the sliding plate (407); a connecting plate (411) is fixedly mounted on a side of the connecting head (410) close to the sliding plate (407); an upper end surface of the connecting plate (411) is fixedly connected to the moving frame (201); a third spring (409) is sleeved on the outer wall of the moving tube (408); two ends of the third spring (409) are respectively fixed to the sliding plate (407) and the sliding box (405); the inner diameter of the gas storage barrel (404) is larger than the outer diameter of the moving tube (408).

6. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitors according to claim 1, characterized in that: Two ventilation joints (414) are symmetrically installed at a position on the upper end surface of the first support rod (203) away from the movable frame (201), the upper end surfaces of the two ventilation joints (414) are connected to an air outlet plate (415), and the lower end surface of the air outlet plate (415) is provided with a plurality of air outlet holes in a linear array, and one end of the movable tube (408) away from the sliding plate (407) is connected to a hose (412), and both ends of the hose (412) are connected to connecting pipes (413), and the connecting pipes (413) pass through the first support rod (203) and are connected to the ventilation joints (414).

7. The winding deviation correction device of aluminum foil for aluminum electrolytic capacitors according to claim 1, characterized in that: The control circuit (5) comprises: the second energized ring (208) is connected in series with a first resistor (501) to form a first deflection detection branch; the first energized ring (207) is connected in parallel with the first resistor (501) to form a second deflection detection branch; after a plurality of first deflection detection branches are connected in parallel and after a plurality of second deflection detection branches are connected in parallel, they are all connected in series with a third electromagnet (502), a first DC power supply, and a second conductive ring (206); the aluminum foil in a biased state can contact the second conductive ring (206) and at least one second energized ring (208) to form a first deflection detection circuit; and the aluminum foil in a biased state can contact the first conductive ring (205) and at least one first energized ring (207) to form a second deflection detection circuit; The third electromagnet (502) is magnetically coupled with a second connecting block (504); a fifth spring (503) is fixed to a side of the third electromagnet (502) facing the second connecting block (504); the second connecting block (504) is connected to a conductive rod (506) via a sliding rod; the sliding rod is slidably connected to a movable guide rail (505), and the movable guide rail (505) is fixedly arranged; The control circuit (5) further comprises two groups of second resistors (508) and electrical contacts (507) connected in series to form a deviation correction branch circuit. The two groups of deviation correction branches are connected in parallel and are both connected in series with the first electromagnetic push rod (403), the third DC power supply, and the electromagnet (316) to form a deviation correction circuit. The conductive rod (506) can contact at least one electrical contact (507) in each group of electrical contacts (507). The current directions in the two deviation correction circuits are opposite.

Citation Information

Patent Citations

  • Aluminum foil winding deviation rectifying device for aluminum electrolytic capacitor

    CN115763083A