Full-automatic paper cutting and casing equipment for metalized film capacitor and method thereof

Abstract

The application belongs to the technical field of capacitor manufacturing, and discloses a full-automatic paper cutting and casing equipment for metallized film capacitors and a method thereof, which comprises a paper supply cutting unit, a paper film forming unit, a casing conveying unit, a paper loading and casing unit and a finished product discharging unit, the paper supply cutting unit is used for automatically cutting paper film, the paper film forming unit is used for stamping the paper film into a three-dimensional paper film, the casing conveying unit comprises a rotating disc mechanism and a plurality of clamps, the paper loading and casing unit comprises a paper taking mechanism and a paper pressing mechanism and is used for pressing the three-dimensional paper film into the inside of a capacitor casing, and the finished product discharging unit is used for moving the capacitor casing with completed paper loading out of the rotating disc mechanism. The application integrates the whole process of paper cutting, stamping forming, paper loading and casing and discharging in an automatic equipment for the first time, replaces the traditional manual paper loading mode, and successfully solves the long-standing industry problem of lacking of automatic special equipment for capacitor casing paper loading.

Description

Technical Field

[0001] This invention relates to the field of capacitor manufacturing technology, and in particular to a fully automated paper cutting and casing equipment and method for metallized film capacitors. Background Technology

[0002] Metallized film capacitors are common electronic components that use organic plastic films as dielectrics and metallized films as electrodes, manufactured through winding or stacking. Among many film materials, polyester and polypropylene films are widely used due to their excellent electrical properties, such as the common CBB65 capacitor.

[0003] In the production process of metallized film capacitors such as CBB65 that use aluminum casings, after the cells undergo pre-processing such as hot pressing, gold spraying, energy sorting, and welding, they need to be encapsulated in an aluminum casing. Before this casing process, a crucial step is to place an insulating paper film inside the empty aluminum casing. This paper film serves as electrical insulation between the cell and the metal casing and is an important component to ensure the safe and stable operation of the capacitor.

[0004] Currently, in the capacitor manufacturing industry, the process of packing paper film into aluminum casings is generally done manually. That is, operators manually fold or punch the cut paper into specific shapes and then place it into the aluminum casing. Existing technology has the following main drawbacks: 1. Low production efficiency: Manual operation is slow and difficult to match the automated production rhythm of upstream and downstream processes, becoming a bottleneck restricting production capacity. At the same time, there are significant individual differences in manual operation, resulting in inconsistent paper loading tightness, positional accuracy, and paper forming effect, which directly affects the insulation performance and consistency of the product, leading to a high defect rate.

[0005] 2. Difficulty in automating the process: The manual paper loading process requires manual material handling and transfer between the front-end battery cell processing and the back-end casing pressing process. This not only increases labor costs but also easily leads to production interruptions and asynchronous production cycles, making it difficult to form a continuous and smooth automated production line.

[0006] 3. Lack of dedicated automated equipment: Although other aspects of capacitor production have gradually become automated, there has long been a lack of mature and reliable fully automated dedicated equipment on the market for the delicate and critical process of "paper filling into the casing." The level of automation in this process has seriously lagged behind the overall development of the industry, becoming a shortcoming that urgently needs to be addressed in building a fully automated production line. Summary of the Invention

[0007] In order to solve the technical problems existing in the prior art, the purpose of this invention is to provide a fully automatic paper cutting and casing equipment and method for metallized film capacitors, so as to realize the full automation of the capacitor paper loading process, thereby improving production efficiency and ensuring product quality.

[0008] To achieve this objective, the present invention adopts the following technical solution: On one hand, the present invention provides a fully automatic paper cutting and packaging device for metallized film capacitors, comprising: The paper feeding and cutting unit is used to store roll paper film and automatically cut it according to the preset length to form a single sheet of paper film. A paper film forming unit is located at the discharge end of the paper feeding and cutting unit and is used to press the cut single sheet of paper film into a three-dimensional paper film. The housing conveying unit includes an intermittently rotatable turntable mechanism, on which multiple clamps for fixing capacitor housings are evenly distributed along the circumference; The paper loading unit is located above the turntable mechanism and includes a paper picking mechanism and a paper pressing mechanism. The paper picking mechanism is used to pick up the formed three-dimensional paper film from the paper film forming unit and transfer it to the opening of the capacitor housing on the fixture. The paper pressing mechanism is used to press the three-dimensional paper film into the interior of the capacitor housing. The finished product discharge unit is located at the discharge station of the turntable mechanism and is used to remove the capacitor housings that have been filled with paper from the turntable mechanism.

[0009] As a preferred embodiment of a fully automatic paper cutting and casing device for metallized film capacitors, the paper feeding and cutting unit includes an unwinding frame, a paper feeding mechanism, a paper feeding adjustment mechanism, and a cutting mechanism; the unwinding frame is used to store roll paper film, the paper feeding mechanism is used to drive the paper film to move in order to control the paper feeding length; the paper feeding adjustment mechanism is located on the paper feeding side of the paper feeding mechanism and is used to adjust the paper feeding width; the cutting mechanism is located on the paper output side of the paper feeding mechanism and is used to cut the paper film.

[0010] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the paper feeding mechanism includes two paper feeding seats, at least one fixed paper roller, at least one movable paper roller, a paper feeding motor, and a lifting adjustment device. The movable paper roller and the fixed paper roller are both movably arranged between the two paper feeding seats and are distributed vertically. The paper feeding motor is drivenly connected to the fixed paper roller, and the lifting adjustment device is connected to the movable paper roller to drive the movable paper roller to move up and down to adjust the gap between the movable paper roller and the fixed paper roller. The paper feeding adjustment mechanism includes an adjustment seat, a first guide rail, two movable frames, a bidirectional threaded rod, and an adjustment handwheel. The first guide rail is mounted on the adjustment seat. The left and right ends of the bidirectional threaded rod are provided with threads of opposite directions. The two movable frames are slidably mounted on the first guide rail and threadedly connected to the two ends of the bidirectional threaded rod. The two movable frames are provided with slots for paper film to pass through at opposite positions. The adjustment handwheel is mounted on one end of the bidirectional threaded rod and is used to control the rotation of the bidirectional threaded rod. The cutting mechanism includes a cutting cylinder and a cutting blade. The output end of the cutting cylinder is connected to the cutting blade and is used to drive the cutting blade to move downward to cut the paper film.

[0011] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the paper film forming unit includes a stamping mechanism, a shaping mechanism, and a material supporting mechanism; the material supporting mechanism is used to place the paper film; the stamping mechanism is located above the material supporting mechanism and is used to press down and fix the paper film; the shaping mechanism is located on both sides of the material supporting mechanism and is used to lift the edge of the paper film during stamping, and to gather and press the edge of the paper film towards the stamping mechanism to form a three-dimensional paper film that fits against the inner wall of the capacitor casing.

[0012] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the stamping mechanism includes a first Z-axis moving module and a first stamping die. The first stamping die is installed at the output end of the first Z-axis moving module, and the first Z-axis moving module is used to drive the first stamping die to move up and down. The shaping mechanism includes two first shaping cylinders, two second shaping cylinders, and two shaping molds. The two first shaping cylinders are installed on both sides of the material support mechanism. The second shaping cylinders are horizontally installed on the output ends of the first shaping cylinders, and the shaping molds are installed on the output ends of the second shaping cylinders, and the shaping molds are arc-shaped. The material support mechanism includes a material support base, a material support cylinder, and a first spring. The upper surface of the material support base is a concave structure with a groove in the middle. The first spring is installed in the groove, and the material support cylinder is slidably installed in the groove and connected to the first spring. In the initial state, the upper end of the material support cylinder protrudes from the groove.

[0013] As a preferred embodiment of a fully automatic paper cutting and casing device for metallized film capacitors, the paper film forming unit has two units, which are located on both sides of the paper feeding and cutting unit. The paper feeding and cutting unit and the paper film forming unit also include a paper transfer unit, which is used to transfer the paper film cut on the paper feeding and cutting unit to each paper film forming unit; The paper transfer unit includes a first X-axis moving module, a first Y-axis moving module, a paper transfer cylinder, and at least two suction cups. The first Y-axis moving module is drivenly connected to the first X-axis moving module, the paper transfer cylinder is drivenly connected to the first Y-axis moving module, and the suction cups are installed at the output end of the paper transfer cylinder.

[0014] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the turntable mechanism includes a turntable motor, a reducer, and a turntable. The turntable motor is connected to the reducer, and the reducer is drivenly connected to the turntable. The paper-taking mechanism includes a second Z-axis moving module, a telescopic cylinder, a first finger cylinder, and a rotation adjustment device. The rotation adjustment device is installed at the output end of the second Z-axis moving module. The telescopic cylinder is rotatably connected to the rotation adjustment device. The first finger cylinder is installed at the output end of the telescopic cylinder, and pneumatic grippers are installed at both output ends of the first finger cylinder. The pneumatic grippers have an arc structure and are used to hold three-dimensional paper films. The paper pressing mechanism includes a third Z-axis moving module and a second stamping die. The third Z-axis moving module is connected to the second stamping die for driving the second stamping die to rise and fall, so as to press the three-dimensional paper film into the capacitor housing.

[0015] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the finished product discharge unit includes a casing transfer mechanism, a casing conveying mechanism, and a casing discharge mechanism; the casing transfer mechanism is located between the discharge station of the turntable mechanism and the casing conveying mechanism, and is used to clamp the capacitor casing and place it on the casing conveying mechanism; the casing discharge mechanism is located at the end of the casing conveying mechanism, and is used to remove the capacitor casing from the casing conveying mechanism.

[0016] As a preferred embodiment of a fully automatic paper cutting and casing equipment for metallized film capacitors, the casing transfer mechanism includes a second X-axis moving module, a second finger cylinder, and an electric push rod. The second X-axis moving module is connected to the electric push rod, and the electric push rod is connected to the second finger cylinder to drive the second finger cylinder to move up and down. The outer casing conveying mechanism includes two conveyor belts, several carriers, a limiting cylinder, a limiting rod, two shifting cylinders, and two fixing cylinders. The two conveyor belts are parallel and run in opposite directions to form a circulating conveying path. The carriers are mounted on the conveyor belts to carry the capacitor casings. The limiting cylinder is installed on one side of one of the conveyor belts. The limiting rod is hinged to the output end of the limiting cylinder via a transmission assembly. The limiting cylinder controls the limiting rod to extend into the conveying path of the conveyor belt to block the carrier from moving or to retract to one side of the conveyor belt to allow the carrier to pass smoothly. The two shifting cylinders are respectively installed at both ends of the conveyor belts. The output end of the shifting cylinder is equipped with a conveying frame for conveying the carrier to the adjacent conveyor belt. The two fixing cylinders are respectively installed on one side of the discharge end of the two conveyor belts to push the carrier against the side wall of the conveying frame to facilitate the placement of the capacitor casings. The outer casing ejection mechanism includes a second Y-axis moving module, at least one fourth Z-axis moving module, and a third finger cylinder. The fourth Z-axis moving module is connected to the second Y-axis moving module, and the third finger cylinder is connected to the fourth Z-axis moving module for gripping the capacitor casing.

[0017] On the other hand, the present invention provides a fully automated paper cutting and packaging method for metallized film capacitors, comprising the following steps: S1. Paper feeding and cutting: According to the preset paper film size, the control unit controls the paper feeding and cutting unit to feed the roll paper film to the set length and then automatically cut it to form a single paper film; S2, Paper transfer: The paper transfer unit moves to the cutting station of the paper supply and cutting unit and transfers the cut single paper film to the paper film forming unit; S3, Stamping: The paper film forming unit descends to press the paper film, and lifts the edge of the paper film and pulls it inward and presses it through the material support and side pushing action to form a three-dimensional paper film that matches the shape of the inner cavity of the capacitor shell; S4. Paper loading into the casing: The paper picking mechanism of the paper loading unit rotates to the paper film forming unit to pick up the formed three-dimensional paper film, and rotates to the capacitor casing above the corresponding station on the turntable mechanism; the paper pressing mechanism descends and presses the three-dimensional paper film into the capacitor casing from the opening of the capacitor casing, so that the paper film adheres to the inner wall of the capacitor casing. S5. Discharge: The turntable mechanism rotates to transport the capacitor housing with the paper loaded to the discharge station, where the finished product discharge unit removes it from the turntable mechanism and discharges it.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This invention integrates the entire process of paper cutting, stamping, paper loading and unloading into a set of automated equipment for the first time. By coordinating the action sequence of each mechanism through the control unit, it replaces the traditional manual paper loading operation mode and successfully solves the long-standing industry problem of lacking automated dedicated equipment for the paper loading process of capacitor shells.

[0019] (2) The present invention can precisely control the paper feeding length through the paper feeding mechanism to ensure that the size of each paper film is consistent and avoid the size deviation caused by manual cutting; through the coordinated action of the stamping mechanism and the shaping mechanism, the paper film is stamped into a three-dimensional shape that fits perfectly with the inner wall of the capacitor shell, avoiding the problems of wrinkles, damage or poor fit caused by manual folding; through the precise cooperation of the turntable mechanism, the paper picking mechanism and the paper pressing mechanism, the paper film is accurately pressed into the inside of the capacitor shell, eliminating the situation of skew or not being installed in place.

[0020] (3) The present invention is equipped with a dual-station paper film forming unit and a corresponding dual suction cup paper transfer unit, which can process two paper films at the same time and realize parallel stamping, which greatly improves the efficiency of paper film preparation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the fully automatic paper cutting and casing equipment for metallized film capacitors according to Embodiment 1 of the present invention.

[0023] Figure 2 This is a schematic diagram of the paper feeding and cutting unit described in Embodiment 1 of the present invention.

[0024] Figure 3 This is a schematic diagram of the paper feeding mechanism described in Embodiment 1 of the present invention.

[0025] Figure 4 This is a schematic diagram of the paper feeding adjustment mechanism described in Embodiment 1 of the present invention.

[0026] Figure 5 This is a schematic diagram of the cutting mechanism described in Embodiment 1 of the present invention.

[0027] Figure 6 This is a schematic diagram of the paper film forming unit according to Embodiment 1 of the present invention.

[0028] Figure 7 This is a schematic diagram of the material support mechanism described in Embodiment 1 of the present invention.

[0029] Figure 8 This is a schematic diagram of the stamping mechanism described in Embodiment 1 of the present invention.

[0030] Figure 9 This is a schematic diagram of the shaping mechanism described in Embodiment 1 of the present invention.

[0031] Figure 10 This is a schematic diagram of the paper transfer unit described in Embodiment 1 of the present invention.

[0032] Figure 11 This is a schematic diagram of the housing conveying unit according to Embodiment 1 of the present invention.

[0033] Figure 12 This is a schematic diagram of the turntable mechanism described in Embodiment 1 of the present invention.

[0034] Figure 13 This is a schematic diagram of the disassembled structure of the clamp described in Embodiment 1 of the present invention.

[0035] Figure 14 This is a schematic diagram of the paper-taking mechanism described in Embodiment 1 of the present invention.

[0036] Figure 15 This is a schematic diagram of the paper pressing mechanism described in Embodiment 1 of the present invention.

[0037] Figure 16 This is a schematic diagram of the finished product discharge unit according to Embodiment 1 of the present invention.

[0038] Figure 17 This is a schematic diagram of the shell-moving mechanism described in Embodiment 1 of the present invention.

[0039] Figure 18 This is a schematic diagram of the outer shell conveying mechanism according to Embodiment 1 of the present invention.

[0040] Figure 19 This is a schematic diagram of the outer shell discharge mechanism described in Embodiment 1 of the present invention.

[0041] Explanation of reference numerals in the attached figures: 1. Paper feeding and cutting unit; 11. Unwinding frame; 12. Paper feeding mechanism; 121. Paper feeding seat; 122. Fixed paper roller; 123. Movable paper roller; 124. Paper feeding motor; 125. Lifting block; 126. Lifting rod; 127. Lifting handwheel; 13. Paper feeding adjustment mechanism; 131. Adjustment seat; 132. First guide rail; 133. Moving frame; 134. Bidirectional threaded rod; 135. Adjusting handwheel; 136. Insertion port; 14. Cutting mechanism; 141. Cutting cylinder; 142. Cutting blade; 2. Paper film forming unit; 21. Stamping mechanism; 211. First Z-axis moving module; 212. First stamping die; 22. Shaping mechanism; 221. First shaping cylinder; 222. Second shaping cylinder; 223. Shaping die; 23. Material support mechanism; 231. Material support base; 232. Material support cylinder; 233. First spring; 3. Paper transfer unit; 31. First X-axis moving module; 32. First Y-axis moving module; 33. Paper transfer cylinder; 34. Suction cup; 4. Housing conveying unit; 41. Turntable mechanism; 411. Turntable motor; 412. Reducer; 413. Turntable; 42. Clamp; 421. Clamping seat; 422. Gear; 423. Rack; 424. Mechanical gripper; 425. Rotating shaft; 426. Clamping plate; 427. Movable wheel; 428. Reset rod; 429. Second spring; 43. Clamping cylinder; 5. Paper loading unit; 51. Paper picking mechanism; 511. Second Z-axis moving module; 512. Telescopic cylinder; 513. First finger cylinder; 514. Pneumatic gripper; 515. Paper picking motor; 516. Drive wheel; 517. Driven wheel; 518. Drive shaft; 52. Paper pressing mechanism; 521. Third Z-axis moving module; 522. Second stamping die; 6. Finished product discharge unit; 61. Shell transfer mechanism; 611. Second X-axis moving module; 612. Second finger cylinder; 613. Electric push rod; 62. Shell conveying mechanism; 621. Conveyor belt; 622. Carrier; 623. Limit cylinder; 624. Limit rod; 625. Transfer cylinder; 626. Fixing cylinder; 627. Transmission assembly; 628. Conveying frame; 629. Sensor; 63. Shell discharge mechanism; 631. Second Y-axis moving module; 632. Fourth Z-axis moving module; 633. Third finger cylinder; 7. Frame; 100. Paper film; 200. Capacitor casing. Detailed Implementation

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0044] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Example 1: like Figure 1 As shown, this embodiment provides a fully automatic paper cutting and casing device for metallized film capacitors. This device is used to automatically cut and stamp the insulating paper film 100 and then insert it into the capacitor casing 200.

[0047] The equipment includes a paper feeding and cutting unit 1, a paper film forming unit 2, a paper transfer unit 3, a housing conveying unit 4, a paper loading and housing unit 5, a finished product discharge unit 6, and a frame 7. The paper feeding and cutting unit 1, the paper film forming unit 2, the paper transfer unit 3, the housing conveying unit 4, the paper loading and housing unit 5, and the finished product discharge unit 6 are all installed within the frame 7. Preferably, there are two paper film forming units 2, symmetrically arranged on the left and right sides of the paper feeding and cutting unit 1; the paper transfer unit 3 is located between the paper feeding and cutting unit 1 and the paper film forming unit 2, and is used to transfer paper; the housing conveying unit 4, the paper loading and housing unit 5, and the finished product discharge unit 6 are arranged sequentially along the production line.

[0048] like Figure 2 As shown, the paper feeding and cutting unit 1 is used to store the roll of paper film 100 and automatically cut it according to the preset length to form a single sheet of paper film 100. Specifically, it includes: a roll unwinding frame 11, a paper feeding mechanism 12, a paper feeding adjustment mechanism 13, and a cutting mechanism 14.

[0049] The unwinding frame 11 is used to mount and release the roll of paper film 100. The paper feeding mechanism 12 is located on the paper output side of the unwinding frame 11 and is used to drive the paper film 100 forward and control the paper feeding length. (Reference) Figure 3 The paper feeding mechanism 12 includes two opposing paper feeding seats 121, at least one fixed paper roller 122, at least one movable paper roller 123, a paper feeding motor 124, and a lifting adjustment device. The fixed paper roller 122 and the movable paper roller 123 are rotatably mounted between the two paper feeding seats 121 and are arranged vertically in parallel. The paper film 100 passes through the gap between the fixed paper roller 122 and the movable paper roller 123. The paper feeding motor 124 is drively connected to the fixed paper roller 122 and is used to drive the fixed paper roller 122 to rotate and convey the paper film 100. The lifting adjustment device is connected to the movable paper roller 123 and is used to adjust the gap between the movable paper roller 123 and the fixed paper roller 122 to accommodate paper films 100 of different thicknesses.

[0050] It should be noted that, in order to further improve the stability of paper feeding, two fixed paper rollers 122 and two movable paper rollers 123 are preferably provided in this embodiment. The two fixed paper rollers 122 and the two movable paper rollers 123 are arranged one above the other in a corresponding manner to form a double-roller paper feeding structure, so as to form a stable paper feeding channel.

[0051] Preferably, the lifting adjustment device includes a lifting block 125, a lifting rod 126, and a lifting handwheel 127. The lifting block 125 is slidably mounted on both sides of the paper feed base 121, and the end of the movable paper roller 123 is rotatably connected to the lifting block 125. The lifting rod 126 is threadedly connected to the lifting block 125, and the lifting handwheel 127 is connected to the top of the lifting rod 126. By rotating the lifting handwheel 127, the operator can drive the lifting block 125 to move the movable paper roller 123 up and down, thereby precisely adjusting the paper pressing gap.

[0052] The paper feed adjustment mechanism 13 is located on the paper feed side of the paper feeding mechanism 12, that is, before the paper film 100 enters the paper feeding mechanism 12. It is used to adjust the paper feed width of the paper film 100 to ensure that the paper film 100 does not deviate during transport. (Reference) Figure 4The mechanism includes an adjusting base 131, a first guide rail 132, two movable frames 133, a bidirectional threaded rod 134, and an adjusting handwheel 135. The first guide rail 132 is horizontally mounted on the adjusting base 131. The bidirectional threaded rod 134 is parallel to the first guide rail 132, with threads of opposite directions at its left and right ends. The bottoms of the two movable frames 133 are slidably mounted on the first guide rail 132 and are threadedly connected to both ends of the bidirectional threaded rod 134. Each of the two movable frames 133 has an insertion port 136 on its opposite inner side for the paper film 100 to pass through. The adjusting handwheel 135 is mounted on one end of the bidirectional threaded rod 134. When the adjusting handwheel 135 is rotated, the bidirectional threaded rod 134 drives the two movable frames 133 to move in opposite directions along the first guide rail 132, thereby adjusting the distance between the two insertion ports 136 to accommodate paper films 100 of different sizes.

[0053] The cutting mechanism 14 is located on the paper output side of the paper feeding mechanism 12, that is, after the paper film 100 enters the paper feeding mechanism 12, and is used to cut the paper film 100 after it has been fed to a set length. (Reference) Figure 5 The cutting mechanism 14 includes a cutting cylinder 141 and a cutting blade 142. The piston rod output end of the cutting cylinder 141 is connected to the cutting blade 142 and is used to drive the cutting blade 142 to move downward to complete the cutting action.

[0054] like Figure 6 As shown, the paper film forming unit 2 is used to stamp the cut single sheet of flat paper film 100 into a three-dimensional paper film 100 that fits against the inner wall of the capacitor housing 200. The unit includes a stamping mechanism 21, a shaping mechanism 22, and a material support mechanism 23.

[0055] The material support mechanism 23 is used to support the paper film 100 to be processed before stamping. (Reference) Figure 7 The material support mechanism 23 includes a material support base 231, a material support cylinder 232, and a first spring 233. The upper surface of the material support base 231 is concave, and a vertical groove is formed in the middle of the concave structure. The first spring 233 is installed at the bottom of the groove, and the material support cylinder 232 is slidably installed in the groove and connected to the top of the first spring 233. In the initial state, the upper end of the material support cylinder 232 protrudes from the groove opening and is flush with the top surface of the material support seat 231 to facilitate receiving the paper film 100. When the stamping mechanism 21 presses the paper film 100 downward, the material support cylinder 232 will compress the first spring 233 and slide downward under the stamping action. After the paper film 100 is stamped and formed, the stamping mechanism 21 resets upward. At this time, the first spring 233 will drive the material support cylinder 232 to reset upward, thereby pushing the paper film 100 out of the concave structure of the material support seat 231, which can effectively prevent the paper film 100 from sticking to the material support seat 231 under the stamping action.

[0056] The stamping mechanism 21 is located directly above the material support mechanism 23 and is used to press down and fix the paper film 100. (Reference)Figure 8 The stamping mechanism 21 includes a first Z-axis moving module 211 and a first stamping die 212. The first stamping die 212 is installed at the output end of the first Z-axis moving module 211, and the first Z-axis moving module 211 can drive the first stamping die 212 to move up and down precisely. The shape of the first stamping die 212 matches the internal shape of the paper film 100 to be formed.

[0057] The shaping mechanism 22 is disposed on both sides of the material support mechanism 23, and is used to lift the edge of the paper film 100 during stamping, and to gather and press the edge of the paper film 100 towards the first stamping die 212. (Reference) Figure 9 The shaping mechanism 22 includes two first shaping cylinders 221, two second shaping cylinders 222, and two shaping dies 223. The two first shaping cylinders 221 are respectively installed on the left and right sides of the material support mechanism 23, with their piston rods vertically upwards. The second shaping cylinders 222 are horizontally installed at the piston rod output ends of the first shaping cylinders 221, with their piston rods horizontally facing the first stamping die 212. The shaping dies 223 are correspondingly installed at the piston rod output ends of the second shaping cylinders 222, and the working surface of the shaping die 223 is an arc structure matching the curvature of the inner wall of the capacitor housing 200.

[0058] During operation, the first stamping die 212 descends to press down the paper film 100 and push the material support cylinder 232 downward; then, the first shaping cylinders 221 on both sides rise synchronously to lift the left and right edges of the paper film 100 upward; next, the second shaping cylinder 222 pushes inward, driving the shaping die 223 to gather and press the edges of the paper film 100 toward the side of the first stamping die 212, so that the paper film 100 forms a three-dimensional cylindrical structure.

[0059] In this embodiment, the paper film forming unit 2 is preferably configured as two units, located on the left and right sides of the paper feeding and cutting unit 1, respectively, so as to realize parallel production of two workstations.

[0060] The paper transfer unit 3 is located between the paper feeding and cutting unit 1 and the two paper film forming units 2, and is used to transfer the paper film 100 cut on the paper feeding and cutting unit 1 to the two paper film forming units 2.

[0061] like Figure 10 As shown, the paper transfer unit 3 includes a first X-axis moving module 31, a first Y-axis moving module 32, a paper transfer cylinder 33, and at least two suction cups 34. The first X-axis moving module 31 is horizontally arranged along the paper output direction (i.e., the left-right direction) of the paper feeding and cutting unit 1. The first Y-axis moving module 32 is drivenly connected to the moving end of the first X-axis moving module 31 and can move in a direction perpendicular to the paper surface (i.e., the front-back direction). The paper transfer cylinder 33 is connected to the moving end of the first Y-axis moving module 32, and its piston rod is arranged vertically downward. The suction cups 34 are installed at the end of the piston rod of the paper transfer cylinder 33 and are used to adsorb paper.

[0062] It should be noted that, in order to achieve efficient matching and feeding with the dual paper film forming unit 2, the number of suction cups 34 in this embodiment is preferably four, wherein every two suction cups 34 form a group, so that the paper transfer unit 3 can pick up two paper films 100 at a time and transfer them to the left and right paper film forming units 2 respectively, realizing dual-station parallel stamping and forming, thereby greatly improving the paper feeding efficiency and ensuring the maximization of the overall machine production efficiency.

[0063] like Figure 11 As shown, the housing conveying unit 4 includes a turntable mechanism 41 and multiple clamps 42.

[0064] refer to Figure 12 The turntable mechanism 41 specifically includes a turntable motor 411, a reducer 412, and a turntable 413. The turntable motor 411 is connected to the input end of the reducer 412, and the output end of the reducer 412 is connected to the center of the turntable 413 for driving the turntable 413 to rotate intermittently. Multiple clamps 42 for fixing the capacitor housing 200 are evenly distributed along the circumference of the turntable 413.

[0065] refer to Figure 13 The clamp 42 specifically includes a clamp base 421, a gear 422, two racks 423, two mechanical grippers 424, a rotating shaft 425, a clamping plate 426, and a movable wheel 427. The clamp base 421 is fixedly mounted on the turntable 413. The gear 422 is rotatably disposed in the internal cavity of the clamp base 421. The two racks 423 are horizontally disposed on both sides of the gear 422 and mesh with the gear 422. One end of each rack 423 protrudes outside the clamp base 421. The mechanical grippers 424 are fixedly connected to the protruding ends of the racks 423. The two mechanical grippers 424 are located on the left and right sides of the clamp base 421 and are used to clamp or release the capacitor housing 200. Each mechanical gripper 424 is also connected to a reset rod 428. A second spring 429 is sleeved on the reset rod 428, and one end of the second spring 429 abuts against the inner wall of the clamp base 421. One end of the rotating shaft 425 is connected to the center of the gear 422, and the other end extends out of the clamp 421 and is fixedly connected to one end of the clamp 426. The other end of the clamp 426 is rotatably connected to the movable wheel 427.

[0066] Meanwhile, above the turntable mechanism 41, a fixed clamping cylinder 43 is installed at a position corresponding to each workstation. When the turntable 413 rotates a clamp 42 to the corresponding position of the clamping cylinder 43, the piston rod of the clamping cylinder 43 extends, pushing the movable wheel 427 to swing, thereby driving the clamping plate 426 and the rotating shaft 425 to rotate. The rotation of the rotating shaft 425 drives the gear 422 to rotate, and the gear 422 drives the two racks 423 to move in opposite directions, thereby overcoming the elastic force of the second spring 429 and causing the two mechanical grippers 424 to open. At this time, the capacitor housing 200 can be put in or taken out. After the clamping cylinder 43 returns to its original position, under the action of the second spring 429, the mechanical grippers 424 will automatically clamp the capacitor housing 200.

[0067] The paper loading unit 5 is used to load the formed three-dimensional paper film 100 into the capacitor housing 200 on the fixture 42. This unit includes a paper picking mechanism 51 and a paper pressing mechanism 52.

[0068] The paper-grabbing mechanism 51 is used to pick up the three-dimensional paper film 100 from the paper film forming unit 2 and transfer it to the opening of the capacitor housing 200 on the turntable 413. (Reference) Figure 14 The paper-feeding mechanism 51 includes a second Z-axis moving module 511, a telescopic cylinder 512, a first finger cylinder 513, and a rotation adjustment device. The second Z-axis moving module 511 is vertically mounted for overall lifting. The rotation adjustment device is mounted on the output end of the second Z-axis moving module 511 and includes a paper-feeding motor 515, a drive wheel 516, a driven wheel 517, and a drive shaft 518. The drive wheel 516 is mounted on the output shaft of the paper-feeding motor 515, and the driven wheel 517 is connected to the drive wheel 516 via a synchronous belt. One end of the drive shaft 518 is connected to the driven wheel 517. The telescopic cylinder 512 is horizontally positioned, with its tail connected to the other end of the drive shaft 518, allowing the telescopic cylinder 512 to swing horizontally under the drive of the paper-feeding motor 515. The first finger cylinder 513 is mounted on the piston rod end of the telescopic cylinder 512, and pneumatic grippers 514 are mounted on both output ends of the first finger cylinder 513.

[0069] It should be noted that the pneumatic gripper 514 has an arc structure that matches the outer periphery of the three-dimensional paper film 100 in order to increase the contact area and prevent damage to the paper film 100.

[0070] The paper pressing mechanism 52 is used to press the three-dimensional paper film 100, located above the housing opening, into the housing. (Reference) Figure 15 The paper pressing mechanism 52 includes a third Z-axis moving module 521 and a second pressing die 522. The third Z-axis moving module 521 is vertically mounted, and its output end is connected to the second pressing die 522 to drive the second pressing die 522 to move up and down precisely. The outer dimensions of the second pressing die 522 are slightly smaller than the inner diameter of the capacitor housing 200 to ensure that the paper film 100 can be pressed in smoothly.

[0071] like Figure 16 As shown, the finished product discharge unit 6 is located at the discharge station of the turntable mechanism 41 and is used to remove the capacitor housing 200 with completed paper loading from the turntable 413. This unit includes a housing transfer mechanism 61, a housing conveying mechanism 62, and a housing discharge mechanism 63.

[0072] The shell transfer mechanism 61 is located between the discharge station of the turntable mechanism 41 and the shell conveying mechanism 62. (Reference) Figure 17 The shell-shifting mechanism 61 includes a second X-axis moving module 611, a second finger cylinder 612, and an electric push rod 613. The second X-axis moving module 611 is horizontally positioned, the electric push rod 613 is vertically mounted on the moving end of the second X-axis moving module 611, and the second finger cylinder 612 is mounted on the piston rod end of the electric push rod 613. After the shell-shifting mechanism 61 picks up the finished shell from the turntable 413, it moves laterally to above the shell conveying mechanism 62 via the second X-axis moving module 611, and then the electric push rod 613 descends to place the shell onto the conveying mechanism.

[0073] refer to Figure 18 The outer casing conveying mechanism 62 includes two parallel conveyor belts 621, several carriers 622, a limiting cylinder 623, a limiting rod 624, two shifting cylinders 625, and two fixing cylinders 626. The two conveyor belts 621 run in opposite directions, forming a cyclic conveying path. The carriers 622 are mounted on the conveyor belts 621 and have positioning grooves for supporting the capacitor casing 200. The limiting cylinder 623 is installed on one side of one of the conveyor belts 621. The limiting rod 624 is hinged to the output end of the limiting cylinder 623 via a transmission assembly 627. The limiting cylinder 623 can drive the limiting rod 624 to extend into the conveying path of the conveyor belt 621 to block the movement of the carrier 622, or retract it to one side to allow the carrier 622 to pass. Two shifting cylinders 625 are respectively installed at the ends of the two conveyor belts 621, and their output ends are equipped with conveyor frames 628, which are used to push the carrier 622 from one conveyor belt 621 to the other conveyor belt 621 to achieve circulation. Two fixing cylinders 626 are respectively installed on one side of the discharge end of the two conveyor belts 621, which are used to push the carrier 622 against the side wall of the conveyor frame 628 to achieve positioning when placing or removing the capacitor housing 200.

[0074] It should be noted that the outer casing conveying mechanism 62 also includes a sensor 629. At least two sensors 629 are provided, which are respectively installed at the feeding station and the unloading station of the conveyor belt 621.

[0075] The sensor 629, installed at the unloading station, has its detection end facing the carrier 622 and is used to sense whether the capacitor housing 200 has been placed inside the carrier 622. When the sensor 629 detects that the capacitor housing 200 is in place, the control unit controls the limit cylinder 623 to release the carrier 622, allowing it to be transported downstream; if the capacitor housing 200 is not detected, the limit cylinder 623 drives the limit rod 624 to extend to block the passage of the subsequent carrier 622, waiting for the shell-shifting mechanism 61 to unload the material.

[0076] The sensor 629, installed at the unloading station, has its detection end facing the carrier 622. It is used to sense whether there is a capacitor housing 200 inside the carrier 622 when it arrives at the unloading station. When the capacitor housing 200 is detected to be in place, the control unit controls the fixing cylinder 626 to push out, pushing the carrier 622 to abut against the side wall of the conveyor frame 628 for positioning, so that the housing discharge mechanism 63 can accurately clamp the capacitor housing 200.

[0077] refer to Figure 19 The outer casing discharge mechanism 63 is located at the end of the outer casing conveying mechanism 62. The outer casing discharge mechanism 63 includes a second Y-axis moving module 631, at least one fourth Z-axis moving module 632, and a third finger cylinder 633. The second Y-axis moving module 631 is horizontally positioned, its direction perpendicular to the running direction of the conveyor belt 621. The fourth Z-axis moving module 632 is mounted on the moving end of the second Y-axis moving module 631, and the third finger cylinder 633 is mounted on the output end of the fourth Z-axis moving module 632. During operation, the third finger cylinder 633 descends to grip the outer casing at the end of the conveyor belt 621, then rises and moves laterally, transferring the finished product to the next workstation or material frame.

[0078] The fully automatic paper cutting and packaging equipment in this embodiment also includes a control unit (not shown in the figure). The control unit is electrically connected to the drive elements of the above-mentioned mechanisms and is used to coordinate and control the action sequence of each mechanism according to a preset program to achieve fully automated production.

[0079] Example 2: This embodiment provides a fully automated paper cutting and packaging method for metallized film capacitors, applied to the fully automated paper cutting and packaging equipment of Embodiment 1, and includes the following steps: S1. Paper Feeding and Cutting: According to the preset size of the paper film 100, the control unit controls the operation of the paper feeding and cutting unit 1. The paper feeding motor 124 drives the fixed paper roller 122 to rotate, pulling the roll of paper film 100 from the unwinding frame 11 and conveying it forward. When the paper film 100 passes the paper feeding adjustment mechanism 13, its width is limited by the insertion slots 136 of the two moving frames 133. When the paper feeding length reaches the set value, the paper feeding motor 124 stops, and the cutting cylinder 141 drives the cutting blade 142 to descend, cutting the paper film 100 to form a single piece of paper film 100.

[0080] S2. Paper Transfer: The paper transfer unit 3 is activated, and the first X-axis moving module 31 and the first Y-axis moving module 32 drive the suction cup 34 to move above the cutting station. The paper transfer cylinder 33 pushes the suction cup 34 down, adsorbs the cut single paper film 100, and then rises. Subsequently, the paper transfer unit 3 transfers the paper film 100 to the paper film forming unit 2. When there are two paper film forming units 2, the paper transfer unit 3 can adsorb two paper films 100 at a time and transfer them to the material support mechanism 23 of the left and right paper film forming units 2 respectively.

[0081] S3. Stamping Forming: The paper film forming unit 2 starts the stamping process. First, the first Z-axis moving module 211 drives the first stamping die 212 to descend, pressing down the paper film 100 on the material support cylinder 232, and pushing the material support cylinder 232 to compress the first spring 233 downward. Next, the first shaping cylinders 221 on both sides rise synchronously, lifting the left and right edges of the paper film 100 upward. Then, the second shaping cylinder 222 pushes inward, driving the shaping die 223 to gather and press the edges of the paper film 100 towards the side of the first stamping die 212, holding the pressure for a certain period of time to shape the paper film 100. Finally, the second shaping cylinder 222 and the first shaping cylinder 221 retract in sequence, the first Z-axis moving module 211 drives the first stamping die 212 to rise and reset, and under the elastic force of the material support cylinder 232, the formed three-dimensional paper film 100 is lifted upward, waiting to be picked up.

[0082] S4. Paper Loading: The turntable mechanism 41 rotates the capacitor housing 200 to be loaded with paper to the corresponding station. Simultaneously, the paper-picking mechanism 51 operates: the paper-picking motor 515 drives the telescopic cylinder 512 to rotate to the paper film forming unit 2. The second Z-axis moving module 511 adjusts the height, and the telescopic cylinder 512 extends, bringing the pneumatic gripper 514 close to the three-dimensional paper film 100. The first finger cylinder 513 drives the pneumatic gripper 514 to pick up the paper film 100. After picking up, the telescopic cylinder 512 retracts, and the paper-picking motor 515 reverses, rotating the paper film 100 to directly above the capacitor housing 200 on the turntable 413. During this process, the paper-picking mechanism 51 can be slightly raised to avoid interference. Subsequently, the paper-pressing mechanism 52 starts, and the third Z-axis moving module 521 drives the second stamping die 522 to descend, smoothly pressing the three-dimensional paper film 100 into the interior of the capacitor housing 200 from the opening, ensuring a tight fit between the paper film 100 and the inner wall of the housing. After completion, the paper pressing mechanism 52 rises and resets.

[0083] S5. Discharge: The turntable mechanism 41 continues to rotate, conveying the capacitor casing 200 with the paper loaded to the discharge station. At the discharge station, the clamping cylinder 43 extends to push the movable wheel 427, causing the mechanical grippers 424 of the clamp 42 to open. The second finger cylinder 612 of the casing transfer mechanism 61 grips the capacitor casing 200 and moves it laterally above the carrier 622 of the casing conveying mechanism 62 via the second X-axis moving module 611. The electric push rod 613 descends to place the capacitor casing 200 into the carrier 622. The carrier 622 moves forward on the conveyor belt 621, and after reaching the end, it is pushed by the transfer cylinder 625 to another conveyor belt 621, realizing cyclic conveying or flowing to the next process. Finally, the third finger cylinder 633 of the casing discharge mechanism 63 grips the finished casing and removes the finished product from the equipment through the cooperation of the second Y-axis moving module 631 and the fourth Z-axis moving module 632.

[0084] It should be stated that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to the present invention. However, such variations, as long as they do not depart from the spirit of the present invention, should be within the scope of protection of the present invention. Furthermore, some terminology used in this specification and claims is not limiting, but merely for ease of description.

Claims

1. A fully automatic paper cutting and casing device for metallized film capacitors, characterized in that, include: The paper feeding and cutting unit (1) is used to store the roll paper film (100) and automatically cut it according to the preset length to form a single sheet of paper film (100). Paper film forming unit (2) is located at the discharge end of the paper feeding and cutting unit (1) and is used to press the cut single paper film (100) into a three-dimensional paper film (100). The housing conveying unit (4) includes a turntable mechanism (41) that can rotate intermittently, and the turntable mechanism (41) has a plurality of clamps (42) evenly distributed along the circumference for fixing the capacitor housing (200). The paper loading unit (5) is located above the turntable mechanism (41) and includes a paper picking mechanism (51) and a paper pressing mechanism (52). The paper picking mechanism (51) is used to pick up the formed three-dimensional paper film (100) from the paper film forming unit (2) and transfer it to the opening of the capacitor housing (200) on the fixture (42). The paper pressing mechanism (52) is used to press the three-dimensional paper film (100) into the interior of the capacitor housing (200). The finished product discharge unit (6) is located at the discharge station of the turntable mechanism (41) and is used to remove the capacitor housing (200) after paper loading from the turntable mechanism (41).

2. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 1, characterized in that, The paper feeding and cutting unit (1) includes an unwinding frame (11), a paper feeding mechanism (12), a paper feeding adjustment mechanism (13), and a cutting mechanism (14). The unwinding frame (11) is used to store roll paper film (100), and the paper feeding mechanism (12) is used to drive the paper film (100) to move in order to control the paper feeding length. The paper feeding adjustment mechanism (13) is located on the paper feeding side of the paper feeding mechanism (12) and is used to adjust the paper feeding width of the paper film (100). The cutting mechanism (14) is located on the paper output side of the paper feeding mechanism (12) and is used to cut the paper film (100).

3. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 2, characterized in that: The paper feeding mechanism (12) includes two paper feeding seats (121), at least one fixed paper roller (122), at least one movable paper roller (123), a paper feeding motor (124), and a lifting adjustment device. The movable paper roller (123) and the fixed paper roller (122) are both movably arranged between the two paper feeding seats (121) and are distributed vertically. The paper feeding motor (124) is connected to the fixed paper roller (122) for transmission. The lifting adjustment device is connected to the movable paper roller (123) and is used to drive the movable paper roller (123) to move up and down to adjust the gap between the movable paper roller (123) and the fixed paper roller (122). The paper feeding adjustment mechanism (13) includes an adjustment seat (131), a first guide rail (132), two movable frames (133), a bidirectional threaded rod (134), and an adjustment handwheel (135). The first guide rail (132) is mounted on the adjustment seat (131). The left and right ends of the bidirectional threaded rod (134) are provided with threads of opposite directions. The two movable frames (133) are slidably mounted on the first guide rail (132) and threadedly connected to the two ends of the bidirectional threaded rod (134). The two movable frames (133) are provided with slots (136) for paper film (100) to pass through at opposite positions. The adjustment handwheel (135) is mounted on one end of the bidirectional threaded rod (134) and is used to control the rotation of the bidirectional threaded rod (134). The cutting mechanism (14) includes a cutting cylinder (141) and a cutting blade (142). The output end of the cutting cylinder (141) is connected to the cutting blade (142) to drive the cutting blade (142) to move downward to cut the paper film (100).

4. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 1, characterized in that, The paper film forming unit (2) includes a stamping mechanism (21), a shaping mechanism (22), and a material support mechanism (23); the material support mechanism (23) is used to place the paper film (100); the stamping mechanism (21) is located above the material support mechanism (23) and is used to press down and fix the paper film (100); the shaping mechanism (22) is located on both sides of the material support mechanism (23) and is used to lift the edge of the paper film (100) during stamping, and to gather and press the edge of the paper film (100) towards the stamping mechanism (21) to form a three-dimensional paper film (100) that fits against the inner wall of the capacitor housing (200).

5. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 4, characterized in that: The stamping mechanism (21) includes a first Z-axis moving module (211) and a first stamping die (212). The first stamping die (212) is installed at the output end of the first Z-axis moving module (211). The first Z-axis moving module (211) is used to drive the first stamping die (212) to move up and down. The shaping mechanism (22) includes two first shaping cylinders (221), two second shaping cylinders (222), and two shaping molds (223). The two first shaping cylinders (221) are installed on both sides of the material support mechanism (23). The second shaping cylinders (222) are horizontally installed on the output end of the first shaping cylinders (221) in a corresponding manner. The shaping molds (223) are installed on the output end of the second shaping cylinders (222) in a corresponding manner. The shaping molds (223) are arc-shaped structures. The material support mechanism (23) includes a material support base (231), a material support cylinder (232), and a first spring (233). The upper surface of the material support base (231) is a concave structure, and a groove is provided in the middle of the concave structure. The first spring (233) is installed in the groove, and the material support cylinder (232) is slidably installed in the groove and connected to the first spring (233). In the initial state, the upper end of the material support cylinder (232) protrudes from the groove.

6. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 1, characterized in that, The paper film forming unit (2) has two units, which are located on both sides of the paper feeding and cutting unit (1); The paper feeding and cutting unit (1) and the paper film forming unit (2) are further divided into a paper transfer unit (3), which is used to transfer the paper film (100) cut on the paper feeding and cutting unit (1) to each paper film forming unit (2). The paper transfer unit (3) includes a first X-axis moving module (31), a first Y-axis moving module (32), a paper transfer cylinder (33), and at least two suction cups (34). The first Y-axis moving module (32) is connected to the first X-axis moving module (31) in a driving connection. The paper transfer cylinder (33) is connected to the first Y-axis moving module (32) in a driving connection. The suction cups (34) are installed at the output end of the paper transfer cylinder (33).

7. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 1, characterized in that: The turntable mechanism (41) includes a turntable motor (411), a reducer (412), and a turntable (413). The turntable motor (411) is connected to the reducer (412), and the reducer (412) is connected to the turntable (413) in a transmission connection. The paper-taking mechanism (51) includes a second Z-axis moving module (511), a telescopic cylinder (512), a first finger cylinder (513), and a rotation adjustment device. The rotation adjustment device is installed at the output end of the second Z-axis moving module (511). The telescopic cylinder (512) is rotatably connected to the rotation adjustment device. The first finger cylinder (513) is installed at the output end of the telescopic cylinder (512), and pneumatic grippers (514) are installed at both output ends of the first finger cylinder (513). The pneumatic grippers (514) have an arc structure and are used to hold three-dimensional paper film (100). The paper pressing mechanism (52) includes a third Z-axis moving module (521) and a second stamping die (522). The third Z-axis moving module (521) is connected to the second stamping die (522) for driving the second stamping die (522) to lift and lower, so as to press the three-dimensional paper film (100) into the capacitor housing (200).

8. The fully automatic paper cutting and casing equipment for metallized film capacitors according to claim 1, characterized in that, The finished product discharge unit (6) includes a shell transfer mechanism (61), a shell conveying mechanism (62), and a shell discharge mechanism (63); the shell transfer mechanism (61) is located between the discharge station of the turntable mechanism (41) and the shell conveying mechanism (62), and is used to clamp the capacitor shell (200) and place it on the shell conveying mechanism (62); the shell discharge mechanism (63) is located at the end of the shell conveying mechanism (62), and is used to remove the capacitor shell (200) from the shell conveying mechanism (62).

9. The fully automatic paper cutting and packaging equipment for metallized film capacitors according to claim 8, characterized in that: The shell-moving mechanism (61) includes a second X-axis moving module (611), a second finger cylinder (612), and an electric push rod (613). The second X-axis moving module (611) is connected to the electric push rod (613) in a transmission connection. The electric push rod (613) is connected to the second finger cylinder (612) and is used to drive the second finger cylinder (612) to move up and down. The outer casing conveying mechanism (62) includes two conveyor belts (621), several carriers (622), a limiting cylinder (623), a limiting rod (624), two shifting cylinders (625), and two fixing cylinders (626). The two conveyor belts (621) are parallel and run in opposite directions to form a circular conveying path. The carriers (622) are mounted on the conveyor belts (621) and are used to carry the capacitor casing (200). The limiting cylinder (623) is installed on one side of one of the conveyor belts (621). The limiting rod (624) is hinged to the output end of the limiting cylinder (623) through a transmission assembly (627). The limiting cylinder (623) is used to... The limiting rod (624) is controlled to extend into the conveying path of the conveyor belt (621) to block the movement of the carrier (622) or retract to one side of the conveyor belt (621) to allow the carrier (622) to pass smoothly; two displacement cylinders (625) are respectively installed at both ends of the conveyor belt (621), and the output end of the displacement cylinder (625) is equipped with a conveying frame (628) for conveying the carrier (622) to the adjacent conveyor belt (621); two fixing cylinders (626) are respectively installed on one side of the discharge end of the two conveyor belts (621) for pushing the carrier (622) to abut against the side wall of the conveying frame (628) to facilitate the placement of the capacitor housing (200). The outer casing ejection mechanism (63) includes a second Y-axis moving module (631), at least one fourth Z-axis moving module (632), and a third finger cylinder (633). The fourth Z-axis moving module (632) is connected to the second Y-axis moving module (631), and the third finger cylinder (633) is connected to the fourth Z-axis moving module (632) for gripping the capacitor casing (200).

10. A fully automated paper cutting and casing method for metallized film capacitors, applied to the fully automated paper cutting and casing equipment according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Paper feeding and cutting: According to the preset paper film size, the control unit controls the paper feeding and cutting unit (1) to feed the roll paper film (100) to the set length and then automatically cut it to form a single paper film (100). S2, Paper transfer: The paper transfer unit (3) moves to the cutting station of the paper supply and cutting unit (1) and transfers the cut single paper film (100) to the paper film forming unit (2); S3, Stamping: The paper film forming unit (2) lowers and presses down on the paper film (100), and lifts up the edge of the paper film (100) and pulls it inward and presses it through the material support and side push operation to form a three-dimensional paper film (100) that matches the shape of the inner cavity of the capacitor shell (200). S4, Paper loading into the casing: The paper picking mechanism (51) of the paper loading unit (5) rotates to the paper film forming unit (2) to pick up the formed three-dimensional paper film (100) and rotates to the capacitor casing (200) above the corresponding station on the turntable mechanism (41); the paper pressing mechanism (52) descends and presses the three-dimensional paper film (100) into the capacitor casing (200) from the opening, so that the paper film (100) fits against the inner wall of the capacitor casing (200); S5. Discharge: The turntable mechanism (41) rotates to transport the capacitor housing (200) with the paper loaded to the discharge station, and the finished product discharge unit (6) removes it from the turntable mechanism (41) and discharges it.

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