A winding machine capable of realizing multi-stage online impregnation and a capacitor manufacturing method

Abstract

The present invention relates to the technical field of winding machines, and specifically to a winding machine and capacitor manufacturing method capable of realizing multi-stage online impregnation, including a machine platform; the machine platform is provided with a first impregnation mechanism, a second impregnation mechanism, a first winding disc, a second winding disc, a third winding disc, a fourth winding disc, a winding needle, and a driving mechanism for driving the winding needle to rotate; the first winding disc is provided with a cathode foil; the second winding disc is provided with an anode foil; the third winding disc is provided with a first electrolytic paper; the fourth winding disc is provided with a second electrolytic paper. After the element is manufactured, the present invention does not need to be completely immersed in an electrolyte, and can realize online impregnation to improve efficiency; and the guide needle has no electrolyte and does not need to be cleaned, which is very environmentally friendly; in addition, the electrolyte can quickly penetrate the entire surface of the aluminum foil to reduce the impedance of the product; thereby realizing rapid integration.

Description

Technical Field

[0001] The present invention relates to the technical field of winding machines, and in particular to a winding machine capable of realizing multi-stage online impregnation and a capacitor manufacturing method. Background Art

[0002] Any capacitor that uses a winding process and needs to be impregnated with electrolyte, especially the manufacture of liquid, solid or gel capacitors, needs to be impregnated with electrolyte. However, since impregnation requires pressure, usually alternating cycles of negative and positive pressures, and sometimes heating is required, some high-viscosity electrolytes are even very difficult to impregnate deep into the micropores of the electrode material, resulting in poor capacitor characteristics.

[0003] The wound element is made by winding aluminum foil and electrolytic paper of a certain width into a cylinder through winding tension and fixed with glue or tape. Then, the electrolyte must be infiltrated into the cylindrical element through positive and negative pressure circulation and heating. The pressure requirement is high and because the cylindrical elements are overlapped, it is difficult for the electrolyte to quickly penetrate into the center of the element, and it is even more difficult to penetrate into the deep micropores of the aluminum foil. The element is completely immersed in the electrolyte, causing the guide pin to adhere to the electrolyte. Therefore, after assembly, it must be cleaned to ensure the solderability of the guide pin on the substrate. Cleaning agents are required for cleaning. Since the components of the electrolyte are composed of organic solvents, inorganic or organic carboxylic acids and ammonium salts thereof, and various types of functional additives, even environmentally friendly cleaning agents will cause long-term damage to the environment or increase the processing pressure on related units. Summary of the invention

[0004] The object of the present invention is to provide a winding machine and a capacitor manufacturing method capable of realizing multi-stage online impregnation in view of the above-mentioned deficiencies in the prior art.

[0005] The object of the present invention is achieved through the following technical scheme: A winding machine capable of realizing multi-stage online impregnation, comprising a machine platform; the machine platform is provided with a first impregnation mechanism, a second impregnation mechanism, a first winding disc, a second winding disc, a third winding disc, a fourth winding disc, a winding needle and a driving mechanism for driving the winding needle to rotate; the first winding disc is provided with a cathode foil; the second winding disc is provided with an anode foil; the third winding disc is provided with a first electrolytic paper; the fourth winding disc is provided with a second electrolytic paper;

[0006] The first impregnation mechanism includes a first material tank, a first impregnation head and a second impregnation head; the first impregnation head and the second impregnation head are respectively connected to the first material tank;

[0007] The second impregnation mechanism includes a second material tank, a third impregnation head and a fourth impregnation head; the third impregnation head and the fourth impregnation head are respectively connected to the second material tank;

[0008] The cathode foil is wound on the winding needle after passing through the first impregnation head and the third impregnation head in sequence; the anode foil is wound on the winding needle after passing through the second impregnation head and the fourth impregnation head in sequence;

[0009] The first electrolytic paper is disposed on the front side of the cathode foil after passing through the first impregnation head and the third impregnation head; the second electrolytic paper is disposed on the back side of the cathode foil after passing through the first impregnation head and the third impregnation head.

[0010] The present invention is further configured such that the driving mechanism is a motor.

[0011] The present invention is further configured such that the first impregnation mechanism also includes a first transmission tube and a second transmission tube; the first impregnation head is connected to the first material tank through the first transmission tube; and the second impregnation head is connected to the first transmission tube through the second transmission tube.

[0012] The present invention is further configured such that the second impregnation mechanism also includes a third transmission tube and a fourth transmission tube; the fourth impregnation head is connected to the second material tank through the fourth transmission tube; and the third impregnation head is connected to the fourth transmission tube through the third transmission tube.

[0013] The present invention is further configured such that the first impregnation head, the second impregnation head, the third impregnation head and the fourth impregnation head are all conical nozzles.

[0014] The present invention is further configured such that the first impregnation head, the second impregnation head, the third impregnation head and the fourth impregnation head all include an upper nozzle and a lower nozzle; the output end of the upper nozzle and the output end of the lower nozzle are both used to contact the cathode foil and the anode foil.

[0015] The present invention is further configured that a heating mechanism is provided on the machine; the heating mechanism includes a heater, a first drying chamber provided between the first impregnation head and the third impregnation head, and a second drying chamber provided between the second impregnation head and the fourth impregnation head; the first drying chamber and the second drying chamber are respectively connected to the heater.

[0016] The present invention is further configured such that a fifth material reel is provided on the machine platform; a fixing tape is provided on the fifth material reel; and the fixing tape is used to connect the cathode foil and the anode foil.

[0017] A method for manufacturing a capacitor comprises the following steps:

[0018] A. Cutting cathode foil and anode foil;

[0019] B. Place the cut cathode foil and anode foil in a winding machine, which includes a machine platform. On the machine platform, there are a first impregnation mechanism, a second impregnation mechanism, a first coil reel, a second coil reel, a third coil reel, a fourth coil reel, a winding needle, and a driving mechanism for driving the winding needle to rotate. The cathode foil is placed on the first coil reel; the anode foil is placed on the second coil reel; the third coil reel is provided with a first electrolytic paper; the fourth coil reel is provided with a second electrolytic paper; the first impregnation mechanism includes a first material tank, a first impregnation head, and a second impregnation head; the first impregnation head and the second impregnation head are respectively connected to the first material tank; the second impregnation mechanism includes a second material tank, a third impregnation head, and a fourth impregnation head; the third impregnation head and the fourth impregnation head are respectively connected to the second material tank; there is a fifth coil reel on the machine platform; the fifth coil reel is provided with a fixing tape; the fixing tape is used to connect the cathode foil and the anode foil.

[0020] C. Put electrolyte into the first material tank and the second material tank respectively.

[0021] D. The cathode foil on the first coil reel and the anode foil on the second coil reel respectively pass through the first impregnation head and the second impregnation head for the first impregnation of the electrolyte.

[0022] F. The cathode foil and the anode foil respectively pass through the third impregnation head and the fourth impregnation head for the second impregnation of the electrolyte.

[0023] G. The anode foil after the second impregnation of the electrolyte is wound around the winding needle.

[0024] H. The first electrolytic paper and the second electrolytic paper are respectively placed on the front and back sides of the cathode foil after the second impregnation of the electrolyte.

[0025] I. The fixing tape is placed on the first electrolytic paper or the second electrolytic paper.

[0026] J. The cathode foil together with the first electrolytic paper, the second electrolytic paper, and the fixing tape is wound around the winding needle.

[0027] K. The winding needle winds the anode foil, the cathode foil, the first electrolytic paper, the second electrolytic paper, and the fixing tape into an element.

[0028] L. Assemble the element into a capacitor and conduct inspections.

[0029] The present invention is further configured that a heating mechanism is provided on the machine; the heating mechanism includes a heater, a first drying chamber provided between the first impregnation head and the third impregnation head, and a second drying chamber provided between the second impregnation head and the fourth impregnation head; the first drying chamber and the second drying chamber are respectively connected to the heater; and between step D and step F, step E is also included, in which the cathode foil and the anode foil after the first electrolyte impregnation are dried in the first drying chamber and the second drying chamber respectively.

[0030] The beneficial effects of the present invention are as follows: after the element is manufactured, it does not need to be immersed in the electrolyte, and online impregnation can be achieved to improve efficiency; and the guide needle has no electrolyte and does not need to be cleaned, which is very environmentally friendly; in addition, the electrolyte can be quickly penetrated into the entire surface of the aluminum foil to reduce the impedance of the product; thereby rapid integration can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the conical nozzle of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the upper nozzle and the lower nozzle of the present invention;

[0035] Figures 1 to 3 Description of reference numerals in the figures:

[0036] 1. Machine; 21. First material reel; 22. Second material reel; 23. Third material reel; 24. Fourth material reel; 25. Fifth material reel; 3. Reel needle; 41. Cathode foil; 42. Anode foil; 51. First electrolytic paper; 52. Second electrolytic paper; 53. Fixing tape; 61. First material tank; 62. Second material tank; 71. First impregnation head; 72. Second impregnation head; 73. Third impregnation head; 74. Fourth impregnation head; 75. Conical nozzle; 76. Upper nozzle; 77. Lower nozzle; 81. First transmission tube; 82. Second transmission tube; 83. Third transmission tube; 84. Fourth transmission tube; 91. First drying chamber; 92. Second drying chamber; 93. Heater. DETAILED DESCRIPTION

[0037] The present invention is further described in conjunction with the following examples.

[0038] Depend on Figures 1 to 3It can be seen that the winding machine capable of realizing multi-stage online impregnation described in this embodiment includes a machine table 1; the machine table 1 is provided with a first impregnation mechanism, a second impregnation mechanism, a first winding disc 21, a second winding disc 22, a third winding disc 23, a fourth winding disc 24, a winding needle 3 and a driving mechanism for driving the winding needle 3 to rotate; the first winding disc 21 is provided with a cathode foil 41; the second winding disc 22 is provided with an anode foil 42; the third winding disc 23 is provided with a first electrolytic paper 51; the fourth winding disc 24 is provided with a second electrolytic paper 52; wherein the driving mechanism is not drawn in the figure;

[0039] The first impregnation mechanism includes a first material tank 61, a first impregnation head 71 and a second impregnation head 72; the first impregnation head 71 and the second impregnation head 72 are respectively connected to the first material tank 61;

[0040] The second impregnation mechanism includes a second material tank 62, a third impregnation head 73 and a fourth impregnation head 74; the third impregnation head 73 and the fourth impregnation head 74 are respectively connected to the second material tank 62;

[0041] The cathode foil 41 passes through the first impregnation head 71 and the third impregnation head 73 in sequence and is then wound on the winding needle 3; the anode foil 42 passes through the second impregnation head 72 and the fourth impregnation head 74 in sequence and is then wound on the winding needle 3;

[0042] The first electrolytic paper 51 is disposed on the front side of the cathode foil 41 after passing through the first impregnation head 71 and the third impregnation head 73 ; the second electrolytic paper 52 is disposed on the back side of the cathode foil 41 after passing through the first impregnation head 71 and the third impregnation head 73 .

[0043] Specifically, the winding machine capable of realizing multi-stage online impregnation described in this embodiment first places different electrolytes in the first material tank 61 and the second material tank 62, respectively, and then the cathode foil 41 and the anode foil 42 pass through the first impregnation head 71 and the second impregnation head 72, respectively, to be impregnated with the electrolyte for the first time, and then the cathode foil 41 and the anode foil 42 pass through the third impregnation head 73 and the fourth impregnation head 74, respectively, to be impregnated with the electrolyte for the second time. After the second impregnation, the anode foil 42 is directly wound on the winding needle 3, and the first electrolyte is impregnated. After the paper 51 and the second electrolytic paper 52 are placed on the front and back sides of the cathode foil 41 respectively, the cathode foil 41 together with the first electrolytic paper 51 and the second electrolytic paper 52 are wound on the winding needle 3 and nailed with the anode foil 42 to complete the manufacture of the element; after the element is manufactured, it does not need to be immersed in the electrolyte, and online impregnation can be achieved to improve efficiency; and the guide needle has no electrolyte and does not need to be cleaned, which is very environmentally friendly; in addition, the electrolyte can quickly penetrate into the entire surface of the aluminum foil to reduce the impedance of the product; thereby, rapid integration can be achieved.

[0044] In the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the driving mechanism is a motor. The above arrangement facilitates driving the winding needle 3 to rotate.

[0045] In the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the first impregnation mechanism further includes a first transmission pipe 81 and a second transmission pipe 82; the first impregnation head 71 is connected to the first material tank 61 through the first transmission pipe 81; the second impregnation head 72 is connected to the first transmission pipe 81 through the second transmission pipe 82. The above arrangement can increase the conveying distance of the electrolyte.

[0046] In the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the second impregnation mechanism further includes a third transmission pipe 83 and a fourth transmission pipe 84; the fourth impregnation head 74 is connected to the second material tank 62 through the fourth transmission pipe 84; the third impregnation head 73 is connected to the fourth transmission pipe 84 through the third transmission pipe 83. The above arrangement can increase the conveying distance of the electrolyte.

[0047] like Figure 2 As shown, in the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the first impregnation head 71, the second impregnation head 72, the third impregnation head 73 and the fourth impregnation head 74 are all conical nozzles 75. By setting the conical nozzles 75, impregnation can be realized in a spraying manner.

[0048] like Figure 3 As shown, in the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the first impregnation head 71, the second impregnation head 72, the third impregnation head 73 and the fourth impregnation head 74 all include an upper nozzle 76 and a lower nozzle 77; the output end of the upper nozzle 76 and the output end of the lower nozzle 77 are both used to contact the cathode foil 41 and the anode foil 42. Through the above arrangement, impregnation can be realized in a coating manner.

[0049] In the winding machine capable of realizing multi-stage online impregnation described in this embodiment, a heating mechanism is provided on the machine platform 1; the heating mechanism includes a heater 93, a first drying chamber 91 provided between the first impregnation head 71 and the third impregnation head 73, and a second drying chamber 92 provided between the second impregnation head 72 and the fourth impregnation head 74; the first drying chamber 91 and the second drying chamber 92 are respectively connected to the heater 93. The heating mechanism can accelerate the drying of the cathode foil 41 and the anode foil 42.

[0050] In the winding machine capable of realizing multi-stage online impregnation described in this embodiment, the machine platform 1 is provided with a fifth winding tray 25; the fifth winding tray 25 is provided with a fixing tape 53; the fixing tape 53 is used to connect the cathode foil 41 and the anode foil 42. The above arrangement facilitates fixing the cathode foil 41 and the anode foil 42.

[0051] A capacitor manufacturing method according to this embodiment includes the following steps:

[0052] A. cutting the cathode foil 41 and the anode foil 42;

[0053] B. Place the cut cathode foil 41 and anode foil 42 in a winding machine, the winding machine comprising a machine table 1; the machine table 1 is provided with a first impregnation mechanism, a second impregnation mechanism, a first winding disc 21, a second winding disc 22, a third winding disc 23, a fourth winding disc 24, a winding needle 3 and a driving mechanism for driving the winding needle 3 to rotate; the cathode foil 41 is placed on the first winding disc 21; the anode foil 42 is placed on the second winding disc 22; the third winding disc 23 is provided with a first electrolytic paper 51; the fourth winding disc 24 is provided with a second electrolytic paper 52; the first impregnation mechanism includes The first material tank 61, the first impregnation head 71 and the second impregnation head 72 are connected to the first material tank 61 respectively; the second impregnation mechanism includes the second material tank 62, the third impregnation head 73 and the fourth impregnation head 74; the third impregnation head 73 and the fourth impregnation head 74 are connected to the second material tank 62 respectively; the machine 1 is provided with a heating mechanism; the machine 1 is provided with a fifth material reel 25; the fifth material reel 25 is provided with a fixing tape 53; the fixing tape 53 is used to connect the cathode foil 41 and the anode foil 42;

[0054] C. Add electrolyte into the first material tank 61 and the second material tank 62 respectively;

[0055] D. The cathode foil 41 on the first coiling tray 21 and the anode foil 42 on the second coiling tray 22 pass through the first impregnation head 71 and the second impregnation head 72 respectively to be impregnated with the electrolyte for the first time;

[0056] F. The cathode foil 41 and the anode foil 42 are respectively impregnated with the electrolyte through the third impregnation head 73 and the fourth impregnation head 74 for the second time;

[0057] G. The anode foil 42 after the second electrolyte impregnation is wound on the winding needle 3;

[0058] H. The first electrolytic paper 51 and the second electrolytic paper 52 are respectively placed on the front and back sides of the cathode foil 41 after the second electrolyte impregnation;

[0059] I. The fixing tape 53 is placed on the first electrolytic paper 51 or the second electrolytic paper 52;

[0060] J. The cathode foil 41, the first electrolytic paper 51, the second electrolytic paper 52 and the fixing tape 53 are wound on the winding needle 3;

[0061] K. The winding needle 3 winds the anode foil 42, the cathode foil 41, the first electrolytic paper 51, the second electrolytic paper 52 and the fixing tape 53 into an element. After the element is manufactured, it does not need to be immersed in the electrolyte, and online impregnation can be achieved to improve efficiency. In addition, the guide needle has no electrolyte and does not need to be cleaned, which is very environmentally friendly. In addition, the electrolyte can quickly penetrate into the entire surface of the aluminum foil to reduce the impedance of the product, thereby achieving rapid integration.

[0062] L. Assemble the elements into capacitors and test them.

[0063] In the capacitor manufacturing method described in this embodiment, the heating mechanism includes a heater 93, a first drying chamber 91 disposed between the first impregnation head 71 and the third impregnation head 73, and a second drying chamber 92 disposed between the second impregnation head 72 and the fourth impregnation head 74; the first drying chamber 91 and the second drying chamber 92 are respectively connected to the heater 93; and between step D and step F, there is also a step E, wherein the cathode foil 41 and the anode foil 42 after the first electrolyte impregnation are dried in the first drying chamber 91 and the second drying chamber 92 respectively. When a solid electrolyte is used, the cathode foil 41 and the anode foil 42 after the first electrolyte impregnation need to be dried in the first drying chamber 91 and the second drying chamber 92 respectively.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A winding machine capable of realizing multi-stage online impregnation, Features: The invention comprises a machine (1); the machine (1) is provided with a first impregnation mechanism, a second impregnation mechanism, a first coiling disc (21), a second coiling disc (22), a third coiling disc (23), a fourth coiling disc (24), a coiling needle (3), and a driving mechanism for driving the coiling needle (3) to rotate; the first coiling disc (21) is provided with a cathode foil (41); the second coiling disc (22) is provided with an anode foil (42); the third coiling disc (23) is provided with a first electrolytic paper (51); the fourth coiling disc (24) is provided with a second electrolytic paper (52); The first impregnation mechanism comprises a first material tank (61), a first impregnation head (71) and a second impregnation head (72); the first impregnation head (71) and the second impregnation head (72) are respectively connected to the first material tank (61); The second impregnation mechanism comprises a second material tank (62), a third impregnation head (73) and a fourth impregnation head (74); the third impregnation head (73) and the fourth impregnation head (74) are respectively connected to the second material tank (62); The cathode foil (41) passes through the first impregnation head (71) and the third impregnation head (73) in sequence and is then wound on the winding needle (3); the anode foil (42) passes through the second impregnation head (72) and the fourth impregnation head (74) in sequence and is then wound on the winding needle (3); The first electrolytic paper (51) is arranged on the front side of the cathode foil (41) after passing through the first impregnation head (71) and the third impregnation head (73); the second electrolytic paper (52) is arranged on the back side of the cathode foil (41) after passing through the first impregnation head (71) and the third impregnation head (73); The first impregnation mechanism further comprises a first transmission pipe (81) and a second transmission pipe (82); the first impregnation head (71) is connected to the first material tank (61) through the first transmission pipe (81); the second impregnation head (72) is connected to the first transmission pipe (81) through the second transmission pipe (82); The second impregnation mechanism further comprises a third transmission pipe (83) and a fourth transmission pipe (84); the fourth impregnation head (74) is connected to the second material tank (62) via the fourth transmission pipe (84); the third impregnation head (73) is connected to the fourth transmission pipe (84) via the third transmission pipe (83).

2. A winding machine capable of realizing multi-stage online impregnation according to claim 1, Features: The driving mechanism is a motor.

3. A winding machine capable of realizing multi-stage online impregnation according to claim 1, Features: The first impregnation head (71), the second impregnation head (72), the third impregnation head (73) and the fourth impregnation head (74) are all conical nozzles (75).

4. A winding machine capable of realizing multi-stage online impregnation according to claim 1, Features: The first impregnation head (71), the second impregnation head (72), the third impregnation head (73) and the fourth impregnation head (74) all include an upper spray pipe (76) and a lower spray pipe (77); the output ends of the upper spray pipe (76) and the lower spray pipe (77) are both used to contact the cathode foil (41) and the anode foil (42).

5. A winding machine capable of realizing multi-stage online impregnation according to claim 1, characterized in that: a heating mechanism is provided on the machine table (1); the heating mechanism includes a heater (93), a first drying chamber (91) provided between the first impregnation head (71) and the third impregnation head (73), and a second drying chamber (92) provided between the second impregnation head (72) and the fourth impregnation head (74); the first drying chamber (91) and the second drying chamber (92) are respectively connected to the heater (93).

6. A winding machine capable of realizing multi-stage online impregnation according to claim 1, characterized in that: a fifth winding reel (25) is provided on the machine table (1); a fixing tape (53) is provided on the fifth winding reel (25); the fixing tape (53) is used to connect the cathode foil (41) and the anode foil (42).

7. A method for manufacturing a capacitor, characterized in that: comprises the following steps: A. Cut the cathode foil (41) and the anode foil (42); B. Place the cut cathode foil (41) and anode foil (42) in a winding machine, and the winding machine includes a machine table (1); a first impregnation mechanism, a second impregnation mechanism, a first winding reel (21), a second winding reel (22), a third winding reel (23), a fourth winding reel (24), a winding needle (3) and a driving mechanism for driving the winding needle (3) to rotate are provided on the machine table (1); the cathode foil (41) is placed on the first winding reel (21); the anode foil (42) is placed on the second winding reel (22); the third winding reel (23) is provided with a first electrolytic paper (51); the fourth winding reel (24) is provided with a second electrolytic paper (52); the first impregnation mechanism includes a first material tank (61), a first impregnation head (71) and a second impregnation head (72); the first impregnation head (71) and the second impregnation head (72) are respectively communicated with the first material tank (61); the second impregnation mechanism includes a second material tank (62), a third impregnation head (73) and a fourth impregnation head (74); the third impregnation head (73) and the fourth impregnation head (74) are respectively communicated with the second material tank (62); a fifth winding reel (25) is provided on the machine table (1); a fixing tape (53) is provided on the fifth winding reel (25); the fixing tape (53) is used to connect the cathode foil (41) and the anode foil (42); C. Put electrolyte into the first material tank (61) and the second material tank (62) respectively; D. The cathode foil (41) on the first winding reel (21) and the anode foil (42) on the second winding reel (22) respectively pass through the first impregnation head (71) and the second impregnation head (72) to perform the first impregnation of the electrolyte. F. The cathode foil (41) and the anode foil (42) are respectively impregnated with the electrolyte through a third impregnation head (73) and a fourth impregnation head (74); G. The anode foil (42) after being impregnated with the electrolyte for the second time is wound on the winding needle (3); H, the first electrolytic paper (51) and the second electrolytic paper (52) are respectively placed on the front and back sides of the cathode foil (41) after being impregnated with the electrolyte for the second time; I. The fixing tape (53) is placed on the first electrolytic paper (51) or the second electrolytic paper (52); J. The cathode foil (41) together with the first electrolytic paper (51), the second electrolytic paper (52) and the fixing tape (53) are wound on the winding needle (3); K, a winding needle (3) winds the anode foil (42), the cathode foil (41), the first electrolytic paper (51), the second electrolytic paper (52) and the fixing tape (53) into a web; L. Assemble the elements into capacitors and test them.

8. A method for manufacturing a capacitor according to claim 7, Features: The machine (1) is provided with a heating mechanism; the heating mechanism comprises a heater (93), a first drying chamber (91) provided between the first impregnation head (71) and the third impregnation head (73), and a second drying chamber (92) provided between the second impregnation head (72) and the fourth impregnation head (74); the first drying chamber (91) and the second drying chamber (92) are respectively connected to the heater (93); A step E is also included between step D and step F, wherein the cathode foil (41) and the anode foil (42) after being impregnated with the electrolyte for the first time are dried in the first drying chamber (91) and the second drying chamber (92) respectively.

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