Aluminum electrolytic capacitor coil binding machine

Abstract

The invention discloses an aluminum electrolytic capacitor coil binding machine which comprises a production line and a guide pin burr treatment device, and the guide pin burr treatment device comprises a positioning assembly and a polishing assembly. The positioning assembly is arranged above the production line and is used for fixing the pretreated guide pin and the aluminum foil at the position; a containing groove is formed in the production line, a polishing assembly is arranged in the containing groove, the polishing assembly comprises a lifting base, a conversion base, softening heads and polishing heads, the softening heads and the polishing heads are symmetrically arranged on the conversion base, the conversion base is arranged on the lifting base, and at least one set of softening heads and at least one set of polishing heads are arranged; the pretreated guide pin is conveyed to the position of the burr treatment device, the positioning assembly is used for fixing, the lifting assembly drives the conversion base to rise, the rotating base firstly drives the softening head to be aligned with riveting flowers of the guide pin for softening treatment, and then the polishing head is driven to be aligned with the riveting flowers of the guide pin for polishing treatment. And softening and polishing are alternately carried out, so that burrs on the riveting patterns of the guide pin can be greatly reduced, and the possibility that the burrs pierce electrolytic paper is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor production, in particular to a coiling machine for aluminum electrolytic capacitors. Background Art

[0002] Aluminum electrolytic capacitors are core components in electronic circuits. The core wrapping process is crucial to their reliability during production. The core wrapping is made by layering and winding electrolytic paper with cathode and anode aluminum foils. The electrodes are connected via guide pins. During the core wrapping process, the guide pins are riveted to form a rivet structure to secure the aluminum foil. The rivet structure created by the riveting process on the aluminum tongues of the guide pins can form microscopic burrs. During the winding process, these burrs can easily rub against the electrolytic paper and even pierce it, causing the capacitor to short-circuit and fail.

[0003] In some existing production processes, the rivets on the guide pin's aluminum tongue are wound toward the inside of the core package, resulting in a large contact angle between the rivet surface and the electrolytic paper. Winding at this angle can cause burrs on the rivet surface to be pressed vertically into the electrolytic paper surface due to the winding tension, significantly increasing the risk of burrs piercing the electrolytic paper. Existing techniques reduce the risk of burrs piercing the electrolytic paper by covering the rivets on the guide pin's aluminum tongue with a layer of backing paper.

[0004] However, covering the rivet with a layer of backing paper can result in a thicker aluminum tongue at the guide pin, causing a larger protrusion in the core package, which is detrimental to the package and capacitor stability. Therefore, the problem of burrs on the rivet piercing the electrolytic paper remains the main cause of capacitor short-circuit failure. Summary of the Invention

[0005] The object of the present invention is to provide an aluminum electrolytic capacitor coiling machine to solve the problem that burrs are generated on the guide pin rivets during the guide pin riveting process, which may cause the burrs to pierce the electrolytic paper and cause the capacitor to short-circuit.

[0006] To achieve this object, the present invention adopts the following technical solutions: An aluminum electrolytic capacitor coiling machine includes a production line and a guide needle burr processing device integrated on the production line, wherein the guide needle burr processing device includes: A positioning assembly is provided above the production line and is used to fix the pre-treated guide needle and the aluminum foil therein; A polishing assembly is provided with a receiving tank on the production line, and the polishing assembly is placed in the receiving tank. The polishing assembly includes a lifting seat, a conversion seat, and a softening head and a polishing head symmetrically arranged on the conversion seat. The conversion seat is arranged on the lifting seat, and at least one set of the softening head and the polishing head is provided; Among them, when the pretreated guide needle is transported to the position of the guide needle burr processing device, the positioning component fixes the pretreated guide needle and the aluminum foil there, and the lifting seat drives the conversion seat to rise. The conversion seat first drives the softening head to align with the rivet of the guide needle, and after softening treatment, the conversion seat drives the polishing head to align with the rivet of the guide needle for polishing treatment.

[0007] Optionally, the softening head is used to spray a softener, and a vibration motor is provided inside the polishing head to make the polishing head generate low-frequency vibration. Optionally, the positioning component includes: A driving member, arranged above the production line; A mounting seat connected to a driving end of the driving member, wherein the driving member is used to drive the mounting seat to move toward or away from the production line; A positioning groove is provided at the bottom of the mounting seat, wherein a clamping groove is provided on one side of the positioning groove and a protective pad is provided on the other side; When the positioning assembly positions the pretreatment guide needle, the clamping groove is adapted to a side of the pretreatment guide needle away from the rivet.

[0008] Optionally, an annular groove with a stepped cross-section is provided on one side of the end surface of the polishing head, and the polishing assembly further comprises: a buffer ring, disposed in the annular groove, and capable of shrinking toward the inside of the annular groove; The buffer spring is arranged in the annular groove and located between the bottom of the annular groove and the buffer ring.

[0009] Optionally, an arc-shaped groove is provided at the center of the end surface of the polishing head.

[0010] Optionally, the polishing assembly further includes: The positioning pin is arranged at the center of the bottom of the arc-shaped groove. When the polishing head is docked with the pre-treatment guide pin rivet, the positioning pin is used to be inserted into the hole in the center of the pre-treatment guide pin rivet.

[0011] Optionally, the guide needle burr processing device further includes: A mounting shell is placed in the accommodating groove, the top of the mounting shell is open, and the polishing assembly is arranged in the mounting shell; A sealing plate is arranged in the top opening of the installation shell, and a through hole is opened on the sealing plate for the softening head or the polishing head to rise out.

[0012] Optionally, the polishing assembly further includes a cleaning nozzle, which is connected to the mounting shell and is used to spray compressed gas toward the polishing head.

[0013] Optionally, the guide needle burr processing device further includes a coating component, which is arranged on the production line and is used to apply an insulating coating to the rivets of the polished guide needle.

[0014] Optionally, the aluminum electrolytic capacitor coiling machine further includes a punching assembly and a flattening assembly which are arranged on the production line and located at the front end of the guide needle burr processing device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a coiling machine for aluminum electrolytic capacitors. The guide pin burr processing device includes a positioning assembly and a polishing assembly. When the pre-treated guide pin is transported to the position of the guide pin burr processing device along the production line, the positioning assembly is used to fix the pre-treated guide pin and the aluminum foil there, ensuring that the polishing position is correct. At the same time, it ensures the stability of the connection between the guide pin and the aluminum foil during the polishing process to avoid the displacement caused by polishing. The polishing assembly performs polishing, and the lifting seat first drives the conversion seat to rise. Then, by rotating the conversion seat, the softening head and the polishing head are aligned with the guide pin rivet in turn. The rivet is first softened and then polished, realizing alternating softening and polishing, which can greatly reduce the burrs on the guide pin rivet, thereby improving the surface finish of the guide pin rivet, effectively avoiding the possibility of burrs piercing the electrolytic paper, and improving the overall performance and reliability of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0018] Figure 1 The present invention provides a schematic structural diagram of an aluminum electrolytic capacitor coiling machine.

[0019] Figure 2 The present invention provides a structural schematic diagram of a production line in an aluminum electrolytic capacitor coiling machine according to an embodiment of the present invention.

[0020] Figure 3A partial structural cross-sectional view of an aluminum electrolytic capacitor coiling machine provided in an embodiment of the present invention.

[0021] Figure 4 A structural cross-sectional view of a polishing assembly in an aluminum electrolytic capacitor coiling machine provided by an embodiment of the present invention.

[0022] Figure 5 A structural cross-sectional view of a polishing head in an aluminum electrolytic capacitor coiling machine provided by an embodiment of the present invention.

[0023] Illustrations: 1. Production line; 11. Accommodating groove; 2. Punching assembly; 3. Flattening assembly; 4. Positioning assembly; 41. Driving member; 42. Mounting seat; 43. Positioning groove; 44. Card slot; 45. Protective pad; 5. Polishing assembly; 51. Lifting seat; 52. Conversion seat; 53. Softening head; 54. Polishing head; 541. Ring groove; 542. Buffer ring; 543. Buffer spring; 544. Arc groove; 55. Positioning needle; 56. Cleaning nozzle; 6. Mounting shell; 7. Closing plate; 8. Coating assembly; 9. Winding assembly; 91. First winding shaft; 92. Second winding shaft; 93. Third winding shaft; 94. Winding groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions 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 embodiments described below are only 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 making creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0026] An embodiment of the present invention provides an aluminum electrolytic capacitor coiling machine, comprising a production line and a guide pin burr treatment device, the guide pin burr treatment device being integrated into the production line and comprising a positioning assembly and a polishing assembly. The positioning assembly is disposed above the production line and is used to secure the pre-treated guide pin and the aluminum foil therein; a receiving slot is disposed on the production line, and the polishing assembly is disposed in the receiving slot. The polishing assembly comprises a lifting seat, a conversion seat, and a softening head and a polishing head symmetrically disposed on the conversion seat, the conversion seat being disposed on the lifting seat, and at least one set of softening heads and polishing heads being disposed; when the pre-treated guide pin is transported to the position of the burr treatment device, the positioning assembly secures the pre-treated guide pin and the aluminum foil therein, the lifting assembly drives the conversion seat to rise, the rotating seat first drives the softening head to align with the rivet of the guide pin, and after softening treatment, the rotating seat then drives the polishing head to align with the rivet of the guide pin, and polishing treatment is performed.

[0027] By integrating the guide pin burr processing device on the production line, when the guide pin is transported to the position of the guide pin burr processing device, the positioning component accurately fixes the guide pin and the aluminum foil, the lifting seat drives the conversion seat to rise, and the conversion seat drives the softening head to rotate and align with the guide pin rivet flower, and softens the rivet flower. Then the rotating seat drives the polishing head to rotate and align with the guide pin rivet flower for polishing. This can reduce the burrs on the guide pin rivet flower, effectively avoid the possibility of burrs piercing the electrolytic paper, and help improve the quality of the capacitor.

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, an embodiment of the present invention provides an aluminum electrolytic capacitor coiling machine, comprising a production line 1 and a guide pin burr treatment device, the guide pin burr treatment device being integrated into the production line 1, and the guide pin burr treatment device comprising a positioning assembly 4 and a polishing assembly 5. The positioning assembly 4 is disposed above the production line 1 and is used to secure the pre-treated guide pin and the aluminum foil therein; a receiving tank 11 is disposed on the production line 1, and the polishing assembly 5 is disposed in the receiving tank 11. The polishing assembly 5 comprises a lifting seat 51, a conversion seat 52, and a softening head 53 and a polishing head 54 symmetrically disposed on the conversion seat 52. The conversion seat 52 is disposed on the lifting seat 51, and at least one set of softening head 53 and polishing head 54 is provided; when the pre-treated guide pin is transported to the position of the burr treatment device, the positioning assembly 4 secures the pre-treated guide pin and the aluminum foil therein, the lifting assembly drives the conversion seat 52 to rise, the rotating seat first drives the softening head 53 to align with the rivet of the guide pin, and after softening treatment, the rotating seat then drives the polishing head 54 to align with the rivet of the guide pin, and polishing treatment is performed.

[0030] Specifically, the guide pin burr processing device uses an aluminum electrolytic capacitor coiling machine. On the coiling machine production line 1, the guide pin is first fixedly connected to the aluminum foil through a riveting process, and a rivet is formed at the connection. The burr processing device is located in the latter part of the riveting process, and the burr processing device is used to process the burrs on the rivet.

[0031] The guide pin burr removal device includes a positioning assembly 4 and a polishing assembly 5. The positioning assembly 4 is located above the production line 1 and is used to fix the pre-treated guide pin and the aluminum foil therein to ensure the correct polishing position. At the same time, it ensures the stability of the connection between the guide pin and the aluminum foil during the polishing process to avoid the impact of displacement caused by polishing.

[0032] A receiving tank 11 is provided on the production line 1, and the polishing assembly 5 is disposed in the receiving tank 11. When not in polishing operation, the polishing assembly 5 is in the receiving tank 11 to prevent the polishing assembly 5 from blocking the normal conveying of the guide needle and the aluminum foil. The polishing assembly 5 includes a lifting seat 51, a conversion seat 52, and a softening head 53 and a polishing head 54 symmetrically disposed on the conversion seat 52. The conversion seat 52 is disposed on the lifting seat 51, and at least one set of softening head 53 and polishing head 54 is provided. For example, the lifting seat 51 can be raised and lowered by a motor or a telescopic cylinder to ensure that the softening head 53 and the polishing head 54 can be precisely aligned. The conversion seat 52 is rotatably connected to the lifting seat 51. The conversion seat 52 has two mounting surfaces symmetrical along the axis of the conversion seat 52, and the softening head 53 and the polishing head 54 are respectively fixed to the mounting surfaces. By rotating the conversion seat 52, the softening head 53 and the polishing head 54 are aligned with the guide pin rivet in turn, and softening and polishing are performed alternately. This can greatly reduce the burrs on the guide pin rivet, thereby improving the surface finish of the guide pin rivet, effectively avoiding the possibility of burrs piercing the electrolytic paper, and improving the overall performance and reliability of the capacitor.

[0033] It should be noted that multiple softening heads 53 and polishing heads 54 are spaced apart. The number of softening heads 53 and polishing heads 54 is the same, and the number of holes punched on the guide pin during the riveting process is the same. Furthermore, the spacing between adjacent softening heads 53 and polishing heads 54 is the same, and both are the same as the spacing of the holes punched during the riveting process. Before production, the number and spacing of the holes punched on the guide pin are determined, and the positions of the softening heads 53 and polishing heads 54 are adjusted to ensure that each rivet is precisely aligned.

[0034] Furthermore, the softening head 53 is used to spray a softening agent onto the rivet, softening its surface burrs and facilitating subsequent polishing. The polishing head 54 is internally equipped with a vibration motor, which drives the polishing head 54 to generate low-frequency vibrations, effectively removing the softened burrs. The softening agent should be selected based on the characteristics of the rivet material to ensure the optimal softening effect. The frequency and amplitude of the vibration motor can also be adjusted based on the specific material of the rivet. Of course, the polishing method of the polishing head 54 can also be achieved through rotational or reciprocating motion. This is not specifically limited by the present invention, and those skilled in the art can flexibly select according to actual needs to meet the requirements of different production lines 1.

[0035] like Figure 3 As shown, in this embodiment of the present invention, positioning assembly 4 includes a driver 41, a mounting base 42, and a positioning slot 43. Driver 41 is positioned above production line 1; mounting base 42 is connected to the driving end of driver 41, which drives mounting base 42 toward or away from production line 1. A positioning slot 43 is defined at the bottom of mounting base 42. A retaining groove 44 is provided on one side of positioning slot 43, and a protective pad 45 is provided on the other side. When positioning assembly 4 positions the pretreatment guide pin, retaining groove 44 engages with the side of the pretreatment guide pin away from the rivet.

[0036] Specifically, the driving member 41 is connected to the aluminum electrolytic capacitor production line 1. The driving member 41 can be a cylinder. The cylinder can be extended and retracted to drive the mounting seat 42 to move up and down. When burring is being processed, the driving member 41 drives the mounting seat 42 to descend and fix the guide pin. A positioning groove 43 is provided on the bottom surface of the mounting seat 42 facing the production line 1. The positioning groove 43 is used to accommodate the pre-processing guide pin. While positioning, it can also press the aluminum foil so that the guide pin and the aluminum foil are tightly combined to ensure that no displacement occurs during the burr processing and cause damage to the aluminum foil. A card slot 44 is provided on one side of the positioning slot. The cross-section of the card slot 44 can be semicircular and is used to fit tightly with the side of the pre-processing guide pin away from the rivet. A protective pad 45 is provided on the other side of the positioning slot 4. The protective pad 45 can be made of soft rubber material. It can not only effectively cushion the impact force when the guide pin contacts the positioning slot 43, but also fix the guide pin and aluminum foil at the rivet, effectively avoiding damage to the aluminum foil during the processing.

[0037] like Figure 4 、 Figure 5 As shown, in this embodiment of the present invention, a stepped annular groove 541 is formed on one side of the end surface of the polishing head 54. The polishing assembly 5 also includes a buffer ring 542 and a buffer spring 543. The buffer ring 542 is disposed in the annular groove 541 and is capable of retracting into the annular groove 541. The buffer spring 543 is disposed in the annular groove 541 and is located between the bottom of the annular groove 541 and the buffer ring 542.

[0038] During polishing, as the polishing head 54 contacts the pre-treatment guide pin rivet, the buffer ring 542 first contacts the aluminum foil. The protective pad 45 positions the aluminum foil above the aluminum foil. The buffer ring 542 and the protective pad 45 form abutment with the aluminum foil, effectively preventing direct damage to the aluminum foil from the polishing head 54. Simultaneously, the buffer spring 543 provides elastic support when the polishing head 54 vibrates, allowing the buffer ring 542 to adaptively adjust according to the vibration frequency and force, preventing vibration from directly affecting the aluminum foil surface and ensuring uniform polishing without damaging the foil.

[0039] Furthermore, a curved groove 544 is defined at the center of the end face of the polishing head 54. This groove 544 accommodates the rivet portion of the pre-processed guide pin. During polishing, the rivet portion fits neatly into the groove, facilitating fine grinding of the rivet and improving the polishing effect. Furthermore, the groove 544 cooperates with the buffer ring 542 and the protective pad 45 to protect the aluminum foil from damage during the polishing process.

[0040] Furthermore, the polishing assembly 5 also includes a positioning pin 55. The positioning pin 55 is provided at the center position of the bottom of the arc-shaped groove 544. When the polishing head 54 is docked with the pre-treatment guide pin rivet, the positioning pin 55 is used to be inserted into the hole in the center of the pre-treatment guide pin rivet. Specifically, in the riveting process, the guide pin is punched and then flattened to form a rivet. After flattening, a small hole will be left in the center of the rivet. During the polishing process, when the polishing head 54 is docked with the rivet, the positioning pin 55 is inserted into the small hole in the center of the rivet to ensure that the polishing head 54 is precisely aligned with the rivet, avoid displacement during the polishing process, and help improve the polishing accuracy. At the same time, the positioning pin 55 can also clean the burrs in the small hole to further improve the polishing effect.

[0041] In one embodiment of the present invention, the guide pin deburring device further includes a mounting housing 6 and a sealing plate 7. The mounting housing 6 is placed in the receiving groove 11, the top of the mounting housing 6 is open, and the polishing assembly 5 is disposed in the mounting housing 6; the sealing plate 7 is disposed in the open top of the mounting housing 6, and has a through hole for the softening head 53 or the polishing head 54 to rise out of.

[0042] Specifically, the mounting housing 6 is movably connected to the accommodating slot 11, allowing for adjustment of the position of the polishing assembly 5, allowing for flexible adjustments based on different guide pin sizes and rivet patterns. Furthermore, the mounting housing 6 can be disassembled to remove the polishing assembly 5, facilitating cleaning and maintenance of the interior of the mounting housing 6. The sealing plate 7 is secured to the mounting housing 6 via bolts, with the softening head 53 and polishing head 54 extending through the through-holes. The sealing plate 7 effectively prevents dust from entering the mounting housing 6 and provides additional support for the aluminum foil, ensuring it remains flat during the polishing process.

[0043] For example, the installation position of the installation shell 6 in the receiving groove 11 can be adjusted to accommodate guide pins and rivets of different sizes.

[0044] like Figure 4 As shown, in another embodiment of the present invention, the polishing assembly 5 further includes a cleaning nozzle 56 connected to the mounting housing 6 and configured to spray compressed gas toward the polishing head 54. During the polishing process, after the polishing head 54 completes the polishing process, the conversion base 52 rotates and resets, after which the cleaning nozzle 56 activates and sprays compressed gas, rapidly removing dust and residue from the polishing head 54 and the rivet surface, ensuring that the polishing effect is not affected. Furthermore, an electrostatic adsorption device may be provided on the inner wall of the mounting housing 6 to effectively absorb fine dust generated during the polishing process.

[0045] In this embodiment of the present invention, the guide pin burr treatment device further includes a coating assembly 8, which is positioned on production line 1 and is used to apply an insulating coating to the polished guide pin rivets. Exemplarily, coating assembly 8 may include a coating head and a mounting seat. A mounting slot 43 is defined on production line 1, and coating assembly 8 is mounted within mounting slot 43. Coating assembly 8 is located at the rear end of polishing assembly 5 and can be movably mounted on production line 1 via a housing structure, facilitating replacement of the coating agent. Applying an insulating coating to the rivets further enhances the treatment effect on the guide pin rivets.

[0046] In an embodiment of the present invention, the aluminum electrolytic capacitor coiling machine further includes a punching assembly 2 and a flattening assembly 3, which are disposed on a production line 1 and located at the front end of the guide pin burr removal device. The punching assembly 2 is used to punch guide pin holes in the guide pins and the aluminum foil, while the flattening assembly 3 flattens the punched guide pins and forms rivets to securely secure the guide pins to the aluminum foil.

[0047] For example, during the production of aluminum electrolytic capacitors, two sets of aluminum electrolytic capacitor coiling machines can be used to work in parallel to process the anode aluminum foil and the cathode aluminum foil respectively.

[0048] Further, such as Figure 2As shown, the aluminum electrolytic capacitor winding machine may further include a winding assembly 9, which includes a cathode winding section, an anode winding section, and a winding groove 94. The cathode winding section includes a first winding shaft 91 and a second winding shaft 92, and the anode winding section includes a third winding shaft 93. The cathode aluminum foil passes through the first winding shaft 91 and the second winding shaft 92 and enters the winding groove 94, while the anode aluminum foil passes through the third winding shaft 93 and enters the winding groove 94. Both are wound into the capacitor core within the winding groove 94. By adjusting the direction in which the cathode aluminum foil and the anode aluminum foil enter the winding groove 94, so that the guide pin rivets on the cathode aluminum foil and the anode aluminum foil are wound toward the outside of the capacitor core, the rotation angle of the guide pin rivets during the winding process can be reduced, thereby reducing the wear of the rivets on the electrolytic paper and further reducing the possibility of burrs on the rivets piercing the electrolytic paper. At the same time, by controlling the angle and tension of the cathode aluminum foil and the anode aluminum foil entering the winding groove 94, the contact angle between the riveted surface and the electrolytic paper can be reduced while ensuring the tightness of the capacitor core, further reducing the risk of burrs damaging the electrolytic paper.

[0049] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aluminum electrolytic capacitor coiling machine, characterized in that: It includes a production line and a guide needle burr processing device integrated on the production line, and the guide needle burr processing device includes: A positioning assembly (4) is provided above the production line (1) and is used to fix the pre-treated guide needle and the aluminum foil therein; A polishing assembly (5) is provided with a receiving tank (11) on the production line (1), the polishing assembly (5) is placed in the receiving tank (11), the polishing assembly (5) comprises a lifting seat (51), a conversion seat (52), and a softening head (53) and a polishing head (54) symmetrically arranged on the conversion seat (52), the conversion seat (52) being arranged on the lifting seat (51), and at least one set of the softening head (53) and the polishing head (54) being provided; When the pre-treated guide needle is transported to the position of the guide needle burr treatment device, the positioning component (4) fixes the pre-treated guide needle and the aluminum foil there, and the lifting seat (51) drives the conversion seat (52) to rise. The conversion seat (52) first drives the softening head (53) to align with the rivet of the guide needle, and after the softening treatment, the conversion seat (52) drives the polishing head (54) to align with the rivet of the guide needle and perform the polishing treatment.

2. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: The softening head (53) is used for spraying a softening agent, and a vibration motor is provided inside the polishing head (54) so ​​as to enable the polishing head (54) to generate low-frequency vibration.

3. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: The positioning component (4) comprises: A driving member (41) is arranged above the production line (1); A mounting seat (42) is connected to a driving end of the driving member (41), and the driving member (41) is used to drive the mounting seat (42) to move toward or away from the production line (1); A positioning groove (43) is provided at the bottom of the mounting seat (42), wherein a clamping groove (44) is provided on one side of the positioning groove (43) and a protective pad (45) is provided on the other side; When the positioning assembly (4) positions the pretreatment guide needle, the clamping groove (44) is adapted to the side of the pretreatment guide needle away from the rivet.

4. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: An annular groove (541) with a stepped cross-section is provided on one side of the end surface of the polishing head (54), and the polishing assembly (5) further comprises: a buffer ring (542) disposed in the annular groove (541), wherein the buffer ring (542) is capable of shrinking toward the inside of the annular groove (541); The buffer spring (543) is disposed in the annular groove (541) and is located between the bottom of the annular groove (541) and the buffer ring (542).

5. The aluminum electrolytic capacitor coiling machine according to claim 4, characterized in that: An arc-shaped groove (544) is provided at the center of the end surface of the polishing head (54).

6. The aluminum electrolytic capacitor coiling machine according to claim 5, characterized in that: The polishing assembly (5) further comprises: A positioning needle (55) is provided at the center of the bottom of the arc-shaped groove (544); when the polishing head (54) is docked with the pre-treatment guide needle rivet, the positioning needle (55) is used to be inserted into the hole at the center of the pre-treatment guide needle rivet.

7. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: The guide needle burr processing device also includes: A mounting shell (6) is placed in the accommodating groove (11), the top of the mounting shell (6) is open, and the polishing assembly (5) is arranged in the mounting shell (6); A sealing plate (7) is arranged in the top opening of the mounting shell (6), and a through hole is provided on the sealing plate (7) for the softening head (53) or the polishing head (54) to be lifted out.

8. The aluminum electrolytic capacitor coiling machine according to claim 7, characterized in that: The polishing assembly (5) further comprises a cleaning nozzle (56), which is connected to the mounting shell (6) and is used for spraying compressed gas toward the polishing head (54).

9. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: The guide needle burr processing device further comprises a coating component (8), which is arranged on the production line (1) and is used to apply an insulating coating to the rivets of the polished guide needle.

10. The aluminum electrolytic capacitor coiling machine according to claim 1, characterized in that: The aluminum electrolytic capacitor coiling machine further comprises a punching assembly (2) and a flattening assembly (3) which are arranged on the production line (1) and located at the front end of the guide needle burr processing device.

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