Anode foil production device and method for aluminum electrolytic capacitor

Abstract

The invention relates to the technical field of aluminum electrolytic capacitors, in particular to an anode foil production device and method for an aluminum electrolytic capacitor. Comprising a foundation assembly, the foundation assembly comprises a base, a portal frame is installed on the top of the base, and a hollow conveying belt is installed in the base; a drying assembly is installed in the portal frame and comprises an upper drying bin fixedly connected into the portal frame, and an upper drying rod is arranged at the bottom of the upper drying bin. A lower drying bin is fixedly connected into the base and located in the middle of the hollowed-out conveying belt, and a lower drying opening is formed in the upper portion of the lower drying bin. Aiming at the defects in the prior art, the invention provides the anode foil production device and method for the aluminum electrolytic capacitor, which can effectively solve the problems of anode foil deformation and surface damage caused by overlarge airflow impact during drying and material performance change caused by local high temperature in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum electrolytic capacitor, in particular to an anode foil production device and method for aluminum electrolytic capacitor. BACKGROUND

[0002] In the production process of the anode foil for aluminum electrolytic capacitor, the anode foil as the core component of the capacitor directly determines the electrical performance and service life of the capacitor with its surface quality and structural integrity, and the drying process is a key link in the production of the anode foil, which is used to remove impurities such as electrolyte and moisture remaining on the surface of the anode foil, so as to ensure the smooth progress of the subsequent process and the stability of the product performance. In the prior art, the anode foil drying device usually adopts a single air box blowing structure, and the anode foil is conveyed by a conveying belt to complete the drying operation. Although some devices are provided with two groups of air boxes above and below, the air flow mode is usually continuous blowing, and the blowing parts are usually fixed structures, so that the air flow direction and blowing force cannot be flexibly adjusted. At the same time, the conveying belt is usually of solid structure, and the gas flow is blocked, resulting in insufficient penetration of the air flow, and the problem of uneven drying of the surface of the anode foil is prone to occur during the drying process. In order to ensure the drying effect, some devices increase the air flow pressure to improve the penetration, and then complete the drying process of the anode foil.

[0003] However, in the drying process of the anode foil as the core component of the capacitor, the combination of the fixed structure of the blowing part and the continuous blowing air flow mode is easy to cause excessive air flow impact, which directly causes the deformation of the anode foil or the scratches and damages on the surface of the anode foil, affecting the structural integrity and surface flatness of the anode foil. At the same time, the continuous air flow produces excessive pressure, and the high-temperature hot air acts on the local area of the anode foil for a long time, which is easy to change the material properties of the anode foil, reduce the conductivity and corrosion resistance of the anode foil, and then affect the assembly accuracy and use reliability of the subsequent aluminum electrolytic capacitor, which cannot adapt to the fine and high-quality production requirements of the anode foil, and restricts the improvement of the product performance of the aluminum electrolytic capacitor. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the present application provides an anode foil production device and method for aluminum electrolytic capacitor, which can effectively solve the problems of excessive air flow impact causing the deformation of the anode foil and the surface damage, and the change of the material properties caused by local high temperature in the drying process of the prior art.

[0005] To achieve the above-mentioned purposes, the present application is realized by the following technical solutions: The present application provides an anode foil production device for aluminum electrolytic capacitor, which comprises a base assembly, the base assembly comprises a base, a gantry is installed on the top of the base, and a hollow conveying belt is installed in the base, which is used to transport the anode foil. The gantry is internally provided with a drying assembly, which is used for drying the anode foil transported by the hollow conveying belt, and comprises an upper drying bin fixedly connected in the gantry, a side wall of the upper drying bin is provided with an upper connecting port, the upper connecting port is connected with an upper air blower, the upper air blower is mounted on the outer side wall of the gantry, and the bottom of the upper drying bin is provided with an upper drying rod. The base is fixedly connected with a lower drying bin, the lower drying bin is located in the middle of the hollow conveying belt, a lower drying port is formed above the lower drying bin, and a lower connecting port is formed in the side wall of the lower drying bin. The upper drying bin and the lower drying bin are internally provided with a plugging assembly, the plugging assembly is driven by an alternating assembly to realize alternating plugging, the plugging assembly comprises an upper plugging rod arranged in the upper drying bin and a lower plugging rod arranged in the lower drying bin, the upper plugging rod is used for plugging the upper connecting port, and the lower plugging rod is used for plugging the lower drying bin.

[0006] Preferably, the bottom of the upper drying rod is provided with an upper drying nozzle, and the upper drying rod is connected with the upper drying bin through a connecting hose.

[0007] Preferably, the side wall of the upper drying bin is provided with an upper sliding groove, the upper sliding groove is slidably connected with an upper plugging rod, one end of the upper plugging rod is provided with an upper connecting groove, the side wall of the lower drying bin is provided with a lower sliding groove, the lower sliding groove is slidably connected with a lower plugging rod, and one side of the lower plugging rod is provided with a lower connecting groove.

[0008] Preferably, the alternating assembly comprises a working groove formed in the side wall of the gantry, a fixed shaft is fixedly connected in the working groove, a swing rod is rotatably connected to the side wall of the fixed shaft, and an upper rotating groove and a lower rotating groove are formed at two ends of the swing rod.

[0009] Preferably, an upper hinged rod is rotatably connected in the upper rotating groove, the other end of the upper hinged rod is rotatably connected in the upper connecting groove, a lower hinged rod is rotatably connected in the lower rotating groove, and the other end of the lower hinged rod is rotatably connected in the lower connecting groove.

[0010] Preferably, the swing of the swing rod is driven by a driving assembly, the driving assembly comprises a driving motor mounted in the working groove, the output end of the driving motor is fixedly connected with a disc, the end face of the disc is fixedly connected with a defective tooth block, the side wall of the fixed shaft is fixedly connected with a first gear ring and a second gear ring, and the defective tooth block is meshedly connected with the first gear ring and the second gear ring.

[0011] Preferably, the working groove is provided with a swing assembly for controlling the swing of the upper drying rod, the swing assembly comprises a mounting groove opened in the bottom of the upper drying bin, the mounting groove is provided with the upper drying bin, a swing groove is opened in the side wall of the upper drying bin, a connecting rod is rotatably connected in the swing groove, the connecting rod is fixedly connected to the side wall of the upper drying rod, one end of the connecting rod is fixedly connected with a connecting shaft, one end of the connecting shaft is fixedly connected with a swing gear, the swing gear is meshed with a side wall gear ring, and the side wall gear ring is fixedly connected to the side wall of the disc.

[0012] The application provides a production method of an anode foil for an aluminum electrolytic capacitor, comprising: S1: confirming that the base, gantry and components are stably installed, the upper and lower air blowers, driving motor and other equipment are normally wired, and the hollow conveying belt runs smoothly without jamming; S2: the anode foil to be dried is evenly laid on the hollow conveying belt, the position is adjusted to ensure that it covers the drying area, and the edge is prevented from exceeding the conveying belt range to affect the drying effect; S3: the upper and lower air blowers are started, high-temperature hot air is introduced, and the air speed is adjusted, so that the hot air uniformly enters the upper and lower drying bins and the preheating drying area is preheated; S4: the driving motor is started, and a suitable frequency is set to drive the alternating assembly and the swing assembly to operate, so that the alternating plugging and the swing of the upper drying rod are cooperatively operated; S5: after the anode foil is conveyed by the hollow conveying belt to complete the drying process, the anode foil is taken out from the end of the conveying belt, the surface dryness and integrity are checked, and the anode foil is put into the subsequent process after being qualified.

[0013] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects: The device solves the problems of gas flow obstruction and uneven drying of the traditional solid conveying belt through the structure design of the hollow conveying belt cooperating with the upper and lower double drying bins. The hollow structure ensures smooth penetration of hot air, and the synchronous up-down air supply mode greatly improves the airflow penetration and heat exchange efficiency, avoids the influence of local residual moisture on the subsequent process, and realizes efficient drying without increasing the airflow pressure. The flexible connection design of the upper drying rod and the connecting hose can flexibly adapt to different specifications of the anode foil, the directional air supply of the upper drying nozzle reduces the heat loss, significantly improves the thermal efficiency and reduces the energy consumption compared with the traditional device, shortens the drying cycle while ensuring the product performance stability, and perfectly meets the fine production requirements of the anode foil.

[0014] The alternating sealing and dynamic swinging of the device are cooperatively designed, further optimizing the drying effect and product quality. The alternating component drives the sealing rod to realize pulse air supply, replacing the traditional continuous blowing mode, greatly weakening the instantaneous impact force of the airflow, avoiding damage to the structural integrity of the anode foil; the reciprocating swinging of the upper drying rod forms a dynamic blowing trajectory, covering the entire anode foil, eliminating the long-term focus of high-temperature hot air in a local area, preventing changes in material properties, and ensuring the conductivity and corrosion resistance of the anode foil. The whole mechanical transmission structure is stable and reliable, and no additional power source is needed to realize action linkage. The alternating frequency and swinging amplitude can be flexibly controlled by adjusting the frequency of the driving motor, adapting to diversified production needs. Compared with the prior art, the device improves the drying efficiency and product pass rate, reduces the equipment manufacturing cost and maintenance difficulty, and provides core support for the performance upgrade of aluminum electrolytic capacitors. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the cross-sectional structure of the present application; Figure 3 is a schematic diagram of the Figure 2 is a schematic diagram of the enlarged structure at position A in the present application; Figure 4 is a schematic diagram of the Figure 2 is a schematic diagram of the enlarged structure at position B in the present application; Figure 5 is a schematic diagram of the Figure 2 is a schematic diagram of the enlarged structure at position C in the present application; Figure 6 is a schematic diagram of the cross-sectional structure at the connection between the disc and the swinging rod of the present application; Figure 7 is a schematic diagram of the structure at the connection between the disc and the swinging rod of the present application.

[0017] Fig. 1 is a schematic view of the base assembly; 11 is the base; 12 is the gantry; 13 is the hollow conveying belt; 2 is the drying assembly; 21 is the upper drying bin; 22 is the upper connecting port; 23 is the upper air blower; 24 is the upper drying rod; 25 is the upper drying nozzle; 26 is the connecting hose; 27 is the lower drying bin; 28 is the lower drying port; 29 is the lower connecting port; 210 is the lower air blower; 3 is the plugging assembly; 31 is the upper plugging rod; 32 is the upper chute; 33 is the upper connecting groove; 34 is the lower plugging rod; 35 is the lower chute; 36 is the lower connecting groove; 4 is the alternating assembly; 41 is the working groove; 42 is the fixed shaft; 43 is the swing rod; 44 is the upper rotating groove; 45 is the upper hinged rod; 46 is the lower rotating groove; 47 is the lower hinged rod; 5 is the driving assembly; 51 is the driving motor; 52 is the disc; 53 is the incomplete tooth block; 54 is the first tooth ring; 55 is the second tooth ring; 56 is the side wall tooth ring; 6 is the swing assembly; 61 is the mounting groove; 62 is the connecting rod; 63 is the swing groove; 64 is the connecting shaft; 65 is the swing gear. DETAILED DESCRIPTION

[0018] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] The present application will be further described below with reference to the embodiments.

[0020] Embodiment 1: Reference Figures 1 to 7 A device for producing anode foil for aluminum electrolytic capacitor, comprising a base assembly 1, the base assembly 1 comprises a base 11, the top of the base 11 is provided with a gantry 12, and a hollow conveying belt 13 is installed in the base 11, which is used for transporting anode foil; A drying assembly 2 is installed in the gantry 12, which is used for drying the anode foil transported by the hollow conveying belt 13, and the drying assembly 2 comprises an upper drying bin 21 fixedly connected in the gantry 12, the side wall of the upper drying bin 21 is provided with an upper connecting port 22, the upper connecting port 22 is connected with an upper air blower 23, the upper air blower 23 is installed on the outer side wall of the gantry 12, and the bottom of the upper drying bin 21 is provided with an upper drying rod 24; A lower drying bin 27 is fixedly connected in the base 11, the lower drying bin 27 is located in the middle of the hollow conveying belt 13, a lower drying opening 28 is formed above the lower drying bin 27, a lower connecting opening 29 is formed in the side wall of the lower drying bin 27, the lower connecting opening 29 is connected with a lower air blower 210, and the lower air blower 210 is installed on the outer side wall of the base 11. An upper drying nozzle 25 is installed at the bottom of the upper drying rod 24, and the upper drying rod 24 is connected with the upper drying bin 21 through a connecting hose 26.

[0021] Specifically, the drying assembly 2 takes the upper drying bin 21 in the gantry 12 and the lower drying bin 27 in the base 11 as the core working unit, and cooperates with the upper air blower 23, the lower air blower 210, and the upper drying rod 24 and the upper drying nozzle 25 to realize the drying operation. When the anode foil is conveyed to the drying area by the hollow conveying belt 13, the upper air blower 23 introduces high-temperature hot air into the upper drying bin 21 through the upper connecting opening 22, the hot air is transmitted to the upper drying rod 24 which can be flexibly adjusted through the connecting hose 26, and finally is directed by the upper drying nozzle 25 at the bottom to the upper surface of the anode foil; at the same time, the lower air blower 210 sends air to the lower drying bin 27 through the lower connecting opening 29, and the hot air directly acts on the lower surface of the anode foil through the lower drying opening 28. The hollow structure of the hollow conveying belt 13 eliminates the obstruction of gas flow, so that the hot air on the upper and lower sides can smoothly penetrate, greatly improving the airflow penetration and heat exchange efficiency, and ensuring that the upper and lower surfaces of the anode foil can be evenly blown, laying a foundation for efficient drying. In the whole process, the hot air acts on the anode foil through the precise guiding structure, realizing the rapid removal of the residual electrolyte and moisture on the surface.

[0022] Compared with the design of the existing technology that a single air bellow continuously blows and the blowing structure is fixed, the drying assembly 2 has significant technical advantages and perfectly meets the fine production requirements of the anode foil for aluminum electrolytic capacitors. First, the symmetrical layout of the upper and lower drying bins in combination with the hollow conveying belt 13 solves the problem of gas flow obstruction and uneven drying of the traditional solid conveying belt, avoids the influence of local residual moisture on the subsequent process, and guarantees the stability of product performance. Second, the upper drying rod 24 is flexibly connected with the upper drying bin 21 through the connecting hose 26, which can adapt to anode foils of different widths and thicknesses, and the directional design of the upper drying nozzle 25 reduces the diffusion loss of hot air, improves the thermal efficiency compared with traditional devices, reduces energy consumption, and shortens the drying period. Third, this assembly abandons the unreasonable design of the existing technology that increases airflow pressure to improve penetration, realizes gentle and efficient drying through structure optimization, and completely solves the problems of anode foil deformation, surface scratches, and damage caused by excessive airflow impact. At the same time, the uniform heat exchange mode avoids the influence of local high temperature on the anode foil material, effectively guarantees the assembly precision and service life of the aluminum electrolytic capacitor.

[0023] The upper drying bin 21 and the lower drying bin 27 are provided with a blocking assembly 3, which is driven by an alternating assembly 4 to realize alternating blocking, and the blocking assembly 3 comprises an upper blocking rod 31 arranged in the upper drying bin 21 and a lower blocking rod 34 arranged in the lower drying bin 27, the upper blocking rod 31 is used for blocking the upper connecting port 22, and the lower blocking rod 34 is used for blocking the lower drying bin 27.

[0024] The sidewall of the upper drying bin 21 is provided with an upper sliding groove 32, the upper blocking rod 31 is slidably connected in the upper sliding groove 32, one end of the upper blocking rod 31 is provided with an upper connecting groove 33, the sidewall of the lower drying bin 27 is provided with a lower sliding groove 35, the lower blocking rod 34 is slidably connected in the lower sliding groove 35, and the sidewall of the lower blocking rod 34 is provided with a lower connecting groove 36, and the upper connecting groove 33 and the lower connecting groove 36 are connected with the alternating assembly 4.

[0025] Specifically, the blocking assembly 3 is mainly composed of the upper blocking rod 31, the lower blocking rod 34 and a matching connecting structure, the upper blocking rod 31 is slidably assembled in the upper sliding groove 32 of the upper drying bin 21 and corresponds to the upper connecting port 22; the lower blocking rod 34 is slidably connected in the lower sliding groove 35 of the lower drying bin 27 and corresponds to the lower connecting port 29, and the two are connected with the alternating assembly 4. The upper connecting port 22 and the lower connecting port 29 are alternately opened and closed to form a circulating alternating air supply mode.

[0026] The alternating blocking realizes pulse air supply, completely discards the continuous collision mode, greatly reduces the air flow impact, avoids the damage of the anode foil structure from the root, guarantees the surface flatness and structural integrity. The problems of complex air flow adjustment and poor adaptability of the traditional device are solved. At the same time, the alternating air supply mode makes the hot air action more uniform, cooperates with the air permeability of the hollow conveying belt 13, avoids local high temperature accumulation, guarantees the conductivity and corrosion resistance of the anode foil, improves the subsequent capacitor assembly precision and service life. In addition, the sliding connecting structure of the assembly is stable, has small wear and low maintenance cost, and the alternating frequency can be flexibly controlled by adjusting the frequency of the driving motor 51, which adapts to the drying needs of anode foils of different specifications and meets the fine production requirements. Compared with the fixed blocking or non-blocking design of the prior art, the drying efficiency is guaranteed, and the product quality and production stability are significantly improved.

[0027] The alternating assembly 4 comprises a working groove 41 arranged in the sidewall of the gantry 12, a fixed shaft 42 fixedly connected in the working groove 41, and a swing rod 43 rotatably connected to the sidewall of the fixed shaft 42.

[0028] The upper rotating groove 44 is rotatably connected with an upper hinged rod 45, and the other end of the upper hinged rod 45 is rotatably connected in the upper connecting groove 33. The lower rotating groove 46 is rotatably connected with a lower hinged rod 47, and the other end of the lower hinged rod 47 is rotatably connected in the lower connecting groove 36.

[0029] The swinging of the swinging rod 43 is driven by a driving assembly 5, which comprises a driving motor 51 installed in the working groove 41. The output end of the driving motor 51 is fixedly connected with a disc 52, the end surface of the disc 52 is fixedly connected with a broken tooth block 53, the side wall of the fixed shaft 42 is fixedly connected with a first gear ring 54 and a second gear ring 55, and the broken tooth block 53 is respectively meshingly connected with the first gear ring 54 and the second gear ring 55.

[0030] Specifically, the alternating assembly 4 takes the fixed shaft 42 in the working groove 41 of the gantry 12 as the installation reference, and the swinging rod 43 is rotatably connected through the fixed shaft 42. The upper rotating groove 44 and the lower rotating groove 46 at both ends thereof are respectively hingedly connected with the upper hinged rod 45 and the lower hinged rod 47, and the other ends of the upper hinged rod 45 and the lower hinged rod 47 are correspondingly connected into the upper connecting groove 33 of the upper sealing rod 31 and the lower connecting groove 36 of the lower sealing rod 34, forming a complete transmission link. When the driving motor 51 in the driving assembly 5 drives the disc 52 to rotate, the broken tooth block 53 at the end surface of the disc 52 alternately meshes with the first gear ring 54 and the second gear ring 55 on the fixed shaft 42, thereby driving the swinging rod 43 to reciprocatingly swing around the fixed shaft 42. During the swinging of the swinging rod 43, the upper sealing rod 31 is pulled to slide along the upper sliding groove 32 and the lower sealing rod 34 is pushed to slide along the lower sliding groove 35 through the upper hinged rod 45 and the lower hinged rod 47 respectively, so as to realize the alternating opening and closing of the upper connecting port 22 and the lower connecting port 29. When the broken tooth block 53 meshes with the first gear ring 54, the swinging rod 43 drives the upper sealing rod 31 to seal the upper connecting port 22, and the lower sealing rod 34 is separated from the lower connecting port 29. When the broken tooth block 53 meshes with the second gear ring 55, the reverse action is performed, so that the hot air in the upper and lower drying chambers 27 is alternately blown in a pulse mode, and at the same time, the swinging of the upper drying rod 24 is linked through the swinging assembly 6, thereby completing the dynamic drying operation.

[0031] The prior art usually adopts fixed blowing or continuous blowing mode, which is easy to cause excessive air flow impact and local high temperature accumulation. The alternating plugging design realized by mechanical linkage solves the above problems. On the one hand, the alternating blowing mode replaces the continuous blowing, greatly reduces the instantaneous impact force of the air flow, effectively avoids the deformation of the anode foil caused by strong air flow, and the scratches or damage on the surface of the anode foil, and guarantees the structural integrity and surface flatness of the anode foil, which meets the fine production requirements of the core components of the capacitor. On the other hand, the alternating air supply cooperates with the air permeability of the hollow conveying belt 13, so that the hot air is more evenly distributed, and the local high temperature is avoided for a long time, so as to avoid the change of the material performance of the anode foil, guarantee the conductivity and corrosion resistance of the anode foil, and further improve the assembly precision and use reliability of the subsequent aluminum electrolytic capacitor. In addition, the assembly adopts a pure mechanical transmission structure, which has high transmission efficiency and strong stability, and the alternating frequency and pulse intensity can be flexibly controlled by adjusting the frequency of the driving motor 51, so as to adapt to the drying needs of anode foils of different specifications. Compared with the complex air flow adjusting system in the prior art, the structure is more simple and the maintenance cost is lower, and the drying efficiency and product qualification rate are improved, The working groove 41 is provided with a swing assembly 6 for controlling the swing of the upper drying rod 24. The swing assembly 6 includes a mounting groove 61 opened in the bottom of the upper drying bin 21, and the upper drying bin 21 is arranged in the mounting groove 61. A swing groove 63 is opened in the side wall of the upper drying bin 21, and a connecting rod 62 is rotatably connected in the swing groove 63. The connecting rod 62 is fixedly connected to the side wall of the upper drying rod 24. One end of the connecting rod 62 is fixedly connected with a connecting shaft 64, one end of the connecting shaft 64 is fixedly connected with a swing gear 65, the swing gear 65 is engaged with a side wall gear ring 56, and the side wall gear ring 56 is fixedly connected to the side wall of the disc 52.

[0032] Specifically, the swing assembly 6 is installed in the mounting groove 61 at the bottom of the upper drying bin 21, the upper drying rod 24 is rotationally connected with the swing groove 63 in the mounting groove 61 through the connecting rod 62, the connecting shaft 64 at one end of the connecting rod 62 is fixedly installed with the swing gear 65, and the swing gear 65 is engaged with the side wall gear ring 56 on the side wall of the disc 52 in the driving assembly 5. When the driving motor 51 is started to drive the disc 52 to rotate, the side wall gear ring 56 rotates synchronously with the disc 52, the swing gear 65 is driven to rotate through gear engagement transmission, and then the connecting shaft 64 and the connecting rod 62 are driven to reciprocatingly rotate around the axis of the swing groove 63, and finally the left and right swing of the upper drying rod 24 is realized. The upper drying rod 24 is flexibly connected with the upper drying bin 21 through the connecting hose 26, and the swing process does not affect the hot air delivery. In combination with the directional design of the upper drying nozzle 25, the high-temperature hot air forms a dynamic blowing track to cover the entire surface of the anode foil. The transmission structure relies on the synchronous operation of the disc 52 of the driving assembly 5, does not need an additional power source, realizes the coordinated linkage of the swing action and the alternating plugging action, and ensures the dynamic adjustment of the airflow direction and the blowing range during the drying process.

[0033] The existing drying blowing components are mostly fixed structures, and the hot air can only be directed to blow the fixed area, which is easy to cause the local over-drying or residual moisture of the anode foil, and the continuous focus of high temperature is easy to cause the change of material properties. The gear engagement drives the upper drying rod 24 to reciprocatingly swing, so that the hot air is blown in a dynamic scanning mode, which completely solves the problem of uneven drying caused by fixed blowing, greatly improves the surface drying consistency of the anode foil, and guarantees the machining precision of subsequent processes. At the same time, the dynamic blowing mode avoids the long-time focus of high-temperature hot air on the same area, effectively alleviates the local high-temperature accumulation, prevents the decrease of the conductivity and corrosion resistance of the anode foil, and meets the fine production requirements of the core components of the aluminum electrolytic capacitor. Compared with the design of the existing technology which needs to additionally add a driving device to realize the swing, the present assembly relies on the synchronous transmission of the side wall gear ring 56 of the disc 52, simplifies the structure layout, reduces the equipment manufacturing cost and maintenance difficulty, and has higher transmission efficiency and more stable operation. In addition, the swing amplitude can be flexibly controlled by adjusting the rotating speed of the driving motor 51, which adapts to the drying needs of anode foils of different specifications, widens the application range of the device, and further weakens the airflow impact force in cooperation with the pulse-type air supply of the alternating plugging, thereby avoiding the damage of the anode foil such as deformation and surface scratches from two dimensions, and significantly improving the product qualification rate and service life.

[0034] Embodiment 2: refer to Figures 1 to 7 A method for producing an anode foil for an aluminum electrolytic capacitor, comprising.

[0035] S1: confirming that the base 11, the gantry 12 and each component are stably installed, the upper air blower 23, the lower air blower 210 and the driving motor 51 are normally wired, and the hollow conveying belt 13 runs smoothly without jamming; S2: Lay the anode foil to be dried flat on the perforated conveyor belt 13, adjust its position to ensure that it covers the drying area, and avoid the edges from exceeding the range of the conveyor belt and affecting the drying effect; S3: Turn on the upper blower 23 and the lower blower 210 to introduce high-temperature hot air and adjust the wind speed so that the hot air enters the upper and lower drying chambers 27 evenly to preheat the drying area; S4: Turn on the drive motor 51, set an appropriate frequency, and drive the alternating component 4 and the swing component 6 to operate, so as to realize the coordinated operation of alternating blocking and swinging of the upper drying rod 24. S5: After the anode foil has been conveyed by the perforated conveyor belt 13 to complete the drying process, it is taken out from the end of the conveyor belt and its surface dryness and integrity are checked. If it passes the inspection, it will proceed to the next process.

[0036] Working principle: The anode foil is smoothly conveyed to the drying area by the perforated conveyor belt 13. The perforated structure of this conveyor belt breaks the obstruction of gas flow by the traditional solid conveyor belt, providing ample channels for hot air penetration and ensuring airflow penetration and heat exchange efficiency. The upper blower 23 continuously introduces high-temperature hot air into the upper drying chamber 21 through the upper connection port 22. The hot air is transmitted through the connecting hose 26 to the flexibly adjustable upper drying rod 24, and finally blown directionally onto the upper surface of the anode foil by the upper drying nozzle 25 at the bottom.

[0037] Meanwhile, the lower blower 210 sends air to the lower drying chamber 27 through the lower connection port 29. The hot air acts directly on the lower surface of the anode foil through the lower drying port 28. The combined action of the upper and lower hot air quickly removes the residual electrolyte and moisture on the surface of the anode foil, laying the foundation for subsequent processes.

[0038] After the drive motor 51 starts, it drives the disc 52 to rotate synchronously. The incomplete tooth block 53 on the end face of the disc 52 rotates accordingly, and alternately meshes with the first gear ring 54 and the second gear ring 55 on the side wall of the fixed shaft 42, thereby driving the swing rod 43 to swing back and forth around the fixed shaft 42.

[0039] When the swing rod 43 swings, the upper hinge rod 45 and the lower hinge rod 47 at both ends pull the upper sealing rod 31 to slide along the upper sliding groove 32 and push the lower sealing rod 34 to slide along the lower sliding groove 35, respectively, so that the upper connection port 22 and the lower connection port 29 open and close alternately, so that the hot air of the upper and lower drying chambers 27 is in a pulsed alternating blowing mode, completely abandoning the traditional continuous counter-current design, greatly reducing the instantaneous impact force of the airflow, and fundamentally preventing the anode foil from being deformed or scratched and damaged by the strong airflow.

[0040] During the rotation of the disc 52, the sidewall gear ring 56 of its sidewall rotates synchronously. Through the meshing transmission with the swing gear 65, it drives the connecting shaft 64 and the connecting rod 62 to reciprocate around the axis of the swing groove 63, thereby driving the upper drying rod 24 to swing left and right.

[0041] This dynamic oscillating design allows the hot air trajectory of the upper drying nozzle 25 to cover the entire surface of the anode foil, effectively expanding the blowing range and preventing high-temperature hot air from focusing on the same local area for a long time. This prevents excessively high local temperatures from altering the material properties of the anode foil, ensuring its conductivity and corrosion resistance. Operators can flexibly control the pulse intensity of the alternating blowing and the oscillation amplitude of the upper drying rod 24 by adjusting the frequency of the drive motor 51. This ensures that moisture and impurities on the anode foil surface are thoroughly removed to meet drying process requirements, while also precisely controlling the airflow impact intensity and hot air action mode to prevent structural damage or material deterioration of the anode foil, achieving the dual goals of efficient drying and high-quality production.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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. An apparatus for producing anode foil for aluminum electrolytic capacitors, characterized in that, Includes a base component (1), the base component (1) includes a base (11), a gantry frame (12) is mounted on the top of the base (11), and a perforated conveyor belt (13) is installed inside the base (11) for transporting anode foil; A drying assembly (2) is installed inside the gantry frame (12). The drying assembly (2) is used to dry the anode foil transported by the hollow conveyor belt (13). The drying assembly (2) includes an upper drying chamber (21) fixedly connected inside the gantry frame (12). An upper connection port (22) is provided on the side wall of the upper drying chamber (21). The upper connection port (22) is connected to an upper blower (23). The upper blower (23) is installed on the outer side wall of the gantry frame (12). An upper drying rod (24) is provided at the bottom of the upper drying chamber (21). The base (11) is fixedly connected to a lower drying chamber (27), which is located in the middle of the hollow conveyor belt (13). A lower drying port (28) is opened above the lower drying chamber (27), and a lower connection port (29) is opened on the side wall of the lower drying chamber (27). The lower connection port (29) is connected to a lower blower (210), which is installed on the outer side wall of the base (11). A sealing assembly (3) is installed in the upper drying chamber (21) and the lower drying chamber (27). The sealing assembly (3) is driven by the alternating assembly (4) to achieve alternating sealing. The sealing assembly (3) includes an upper sealing rod (31) in the upper drying chamber (21) and a lower sealing rod (34) in the lower drying chamber (27). The upper sealing rod (31) is used to seal the upper connection port (22), and the lower sealing rod (34) is used to seal the lower drying chamber (27).

2. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 1, characterized in that, The upper drying rod (24) is equipped with an upper drying nozzle (25) at its bottom, and the upper drying rod (24) is connected to the upper drying chamber (21) via a connecting hose (26).

3. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 1, characterized in that, The upper drying chamber (21) has an upper sliding groove (32) on its side wall, and an upper sealing rod (31) is slidably connected in the upper sliding groove (32). An upper connecting groove (33) is provided at one end of the upper sealing rod (31). The lower drying chamber (27) has a lower sliding groove (35) on its side wall, and a lower sealing rod (34) is slidably connected in the lower sliding groove (35). A lower connecting groove (36) is provided on one side of the lower sealing rod (34). The alternating component (4) is connected to the upper connecting groove (33) and the lower connecting groove (36).

4. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 3, characterized in that, The alternating component (4) includes a working groove (41) opened on the side wall of the gantry (12), a fixed shaft (42) is fixedly connected in the working groove (41), and a swing rod (43) is rotatably connected to the side wall of the fixed shaft (42). The two ends of the swing rod (43) are respectively provided with an upper rotating groove (44) and a lower rotating groove (46).

5. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 4, characterized in that, An upper hinge rod (45) is rotatably connected in the upper rotating groove (44), and the other end of the upper hinge rod (45) is rotatably connected in the upper connecting groove (33). A lower hinge rod (47) is rotatably connected in the lower rotating groove (46), and the other end of the lower hinge rod (47) is rotatably connected in the lower connecting groove (36).

6. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 4, characterized in that, The swing of the swing arm (43) is driven by the drive assembly (5), which includes a drive motor (51) installed in the working slot (41). The output end of the drive motor (51) is fixedly connected to a disk (52), and the end face of the disk (52) is fixedly connected to a broken tooth block (53). The side wall of the fixed shaft (42) is fixedly connected to a first gear ring (54) and a second gear ring (55). The broken tooth block (53) is meshed with the first gear ring (54) and the second gear ring (55) respectively.

7. The apparatus for producing anode foil for aluminum electrolytic capacitors according to claim 6, characterized in that, The working groove (41) is provided with a swing assembly (6), which is used to control the upper drying rod (24) to swing. The swing assembly (6) includes an installation groove (61) opened at the bottom of the upper drying chamber (21). The upper drying chamber (21) is provided in the installation groove (61). The side wall of the upper drying chamber (21) is provided with a swing groove (63). A connecting rod (62) is rotatably connected in the swing groove (63). The connecting rod (62) is fixedly connected to the side wall of the upper drying rod (24). One end of the connecting rod (62) is fixedly connected to a connecting shaft (64). One end of the connecting shaft (64) is fixedly connected to a swing gear (65). The swing gear (65) meshes with a side wall gear ring (56). The side wall gear ring (56) is fixedly connected to the side wall of the disc (52).

8. A method for producing anode foil for aluminum electrolytic capacitors, based on the apparatus for producing anode foil for aluminum electrolytic capacitors according to any one of claims 1-8, characterized in that, It also includes the following steps: S1: Confirm that the base (11), gantry (12) and all components are installed securely, the wiring of the upper blower (23), lower blower (210), drive motor (51) and other equipment is normal, and the hollow conveyor belt (13) runs smoothly without jamming. S2: Lay the anode foil to be dried flat on the perforated conveyor belt (13), adjust its position to ensure that it covers the drying area, and avoid the edges from exceeding the range of the conveyor belt and affecting the drying effect; S3: Turn on the upper blower (23) and the lower blower (210) to introduce high-temperature hot air and adjust the wind speed so that the hot air enters the upper and lower drying chambers (27) evenly and preheats the drying area; S4: Turn on the drive motor (51), set an appropriate frequency, drive the alternating component (4) and the swing component (6) to operate, and realize the coordinated operation of alternating sealing and swing of the upper drying rod (24); S5: After the anode foil has been conveyed by the perforated conveyor belt (13) to complete the drying process, it is taken out from the end of the conveyor belt and the surface dryness and integrity are checked. If it passes the inspection, it will proceed to the next process.

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