Capacitor winding and paper-film cutting apparatus

Abstract

A capacitor winding and paper-film cutting apparatus, comprising: a winding transport assembly used for attaching an insulating paper to a film for transportation and winding around the periphery of a capacitor core, a longitudinal cutting assembly (2) used for cutting an excess part at an upper edge of the insulating paper being transported, and a transverse cutting assembly (3) used for cutting the insulating paper and the film after winding of the capacitor core is finished. The longitudinal cutting assembly is located at a front end of the transverse cutting assembly. The transverse cutting assembly comprises an octagonal second blade (308), to enable the cutting to be reliable and stable; an elastic coupling (304), to thereby reduce noise and vibration during operation; and a dual-bearing assembly (305) having seats, to ensure stable operation of a rotary cutter shaft. One end of the cutter shaft has a hexagonal nut sleeved thereon. The direction of rotation of the cutter shaft is opposite to the tightening direction of the hexagonal nut, so as to prevent the second blade from loosening. The longitudinal cutting assembly uses a slide table cylinder to extend a first blade (206) out to cut the insulating paper. After cutting is competed, the first blade is retracted into a first protective cover (205), so that work-related injuries and accidents such as cut fingers can be prevented when a worker cleans the machine or loads the insulating paper and the film.

Description

A capacitor wrapping paper film cutting device Technical Field

[0001] The invention belongs to the field of power capacitor processing equipment, and in particular relates to a capacitor wrapping paper film cutting device. Background Art

[0002] With the rapid development of ultra-high voltage (UHV) technology in China, capacitors are facing increasing demands for stronger insulation performance and longer service life. Power capacitors with higher high-voltage ratings are needed to meet market demand. Previously, the outer surface of the capacitor core was wrapped solely with insulating paper. This has been replaced with a combination of insulating paper and film, wrapping the outer surface of the capacitor core. The original circular cutting blade, driven by the linear motion of the rodless cylinder, naturally rolls horizontally, cutting the insulating paper. However, the addition of film during cutting can cause the paper film to bulge upward, especially at the start of the cut, preventing the film from being cut. Film that is not fully tensioned by the tension shaft can lead to higher failure rates, and even with a sharp straight blade, cutting performance is poor. Insulating paper is brittle and easy to cut, while film is thick and tough, making cutting reliability unreliable. This results in frequent film piercing, wasting operating time, and impacting production efficiency.

[0003] In addition, due to the large number of specifications of capacitors, the excess part of the upper edge of the insulating paper needs to be cut, and the cutter is always exposed. Workers are prone to safety problems when stringing the paper film and cleaning, which poses a major safety hazard. Moreover, when newly installed insulating paper rolls are rolled, manual intervention is required to start cutting the paper, and the work is relatively cumbersome.

[0004] Summary of the Invention

[0005] The technical purpose of the present invention is to provide a capacitor wrapping paper film cutting device to solve the technical problems mentioned in the background technology.

[0006] In order to solve the above problems, the technical solution of the present invention is:

[0007] A capacitor wrapping paper film cutting device, comprising:

[0008] Wrapping transfer assembly, longitudinal cutting assembly and transverse cutting assembly;

[0009] The wrapping transfer component is used to transfer and wrap the insulating paper and film around the capacitor core;

[0010] The longitudinal cutting assembly is provided on one side of the transfer portion of the wrapping transfer assembly and is used to cut the excess portion of the upper edge of the insulation paper being transferred;

[0011] The transverse cutting assembly is provided on one side of the transmission part and is used to cut the insulating paper and film after the capacitor core is wound;

[0012] Along the transmission direction of the insulating paper and the film, the longitudinal cutting assembly is located at the front end of the transverse cutting assembly.

[0013] Specifically, the longitudinal cutting assembly includes a mounting base, a first power unit, a blade mounting assembly, and a first blade;

[0014] The mounting base is a right-angle bracket, the first power unit is installed on the upper end surface of the mounting base, and the power end of the first power unit is connected to the blade mounting assembly; the first blade is installed in the blade mounting assembly, and the first blade follows the blade mounting assembly and extends to the wrapping transfer assembly under the push of the first power unit to cut the excess part of the upper edge of the insulating paper being transferred.

[0015] The first power unit is a double-rod cylinder, a slide is provided on the upper part of the double-rod cylinder, the sliding direction of the slide is perpendicular to the transmission direction, and the blade mounting assembly is fixed on the slide and moves with the movement of the slide;

[0016] The blade mounting assembly includes a blade seat and a pressure plate. The blade seat is fixed above the slide. The pressure plate is fixed above the blade seat. A groove is provided below the pressure plate and forms an accommodating space with the upper end surface of the blade seat. A first blade is fixed in the accommodating space.

[0017] The knife seat is provided with a plurality of screw holes, and the pressure plate is provided with a plurality of screw holes correspondingly. The first blade is connected with the knife seat and the pressure plate by bolts, and the length of the first blade is adjusted according to the position of the screw holes.

[0018] Further preferably, the longitudinal cutting assembly is further provided with a first protective cover, which is sleeved on the mounting base. In the working state, the first blade extends out of the first protective cover, and in the standby state, the first blade is located in the first protective cover.

[0019] Further preferably, a support assembly is further provided, and one side of the longitudinal cutting assembly is fixedly connected to the support assembly;

[0020] The support assembly includes an adjustment column, a ruler, a clamping plate and a ruler indicator strip;

[0021] The adjustment column is a rectangular square tube. A long slot is opened on one side of the adjustment column. A splint is opened in the long slot. The splint has an internal threaded hole. The mounting base is connected to the splint with bolts. The height of the mounting base can be adjusted by moving the splint.

[0022] The scale is arranged on the adjustment column, the scale indicator bar is installed on the first protective cover, and the scale indicator bar cooperates with the scale to mark the current height of the longitudinal cutting component.

[0023] Specifically, the transverse cutting assembly includes a second power unit, a connecting plate, a blade assembly and a knife groove column;

[0024] The second power unit is a rodless cylinder. One side of the connecting plate is connected to the rodless cylinder, and the blade assembly is fixed to the other side of the connecting plate. The knife groove column and the blade assembly are respectively arranged on both sides of the transmission part. The knife groove column is provided with a knife groove that matches the second blade in the blade assembly. The blade assembly cooperates with the knife groove column to cut the insulating paper and film after winding.

[0025] Among them, a sliding block is provided on the rodless cylinder, and the sliding block is controlled by the rodless cylinder to slide along the transmission direction, and the blade assembly moves synchronously with the sliding block.

[0026] Specifically, the blade assembly includes a motor and reduction box assembly, an elastic coupling, a seated double bearing assembly and a rotating blade shaft assembly;

[0027] The output shaft of the motor and reduction gearbox assembly is connected to one end of the elastic coupling, the other end of the elastic coupling is connected to the cutter shaft of the rotating cutter shaft assembly, and the double bearing assembly with a seat is sleeved on the cutter shaft and located between the elastic coupling and the rotating cutter shaft assembly;

[0028] The motor and reduction box assembly are used to output rotational power, the elastic coupling is used to adjust the operating accuracy, the double bearing assembly with a seat is used to prevent the knife shaft from jumping, and the rotating knife shaft assembly is used for cutting.

[0029] Further preferably, the transverse cutting assembly is also provided with a second protective cover and a third protective cover; the second protective cover is arranged on the outside of the rotating knife shaft assembly and is connected to the connecting plate, and a through slit is opened on the side of the second protective cover close to the transmission part, and the second blade extends to the outside through the through slit for cutting; the third protective cover is arranged on the outside of the motor and reducer assembly and the elastic coupling, and is connected to the connecting plate, for protecting the motor and reducer assembly and the elastic coupling.

[0030] The wrapping transfer assembly includes a transfer portion, a guide portion, and a pressing portion;

[0031] Along the transmission direction, the guide part is arranged at the front end of the longitudinal cutting component, and the pressing part is arranged between the longitudinal cutting component and the transverse cutting component; the guide part is used to achieve preliminary fitting of the insulating paper and the film, and the pressing part is used to achieve tight fitting of the insulating paper and the film.

[0032] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0033] The second blade of the present invention adopts an octagonal blade with a large arc on the straight side and a small arc at the intersection. The cutting edge is sharp and the arc surface is subjected to large force, which reduces the force on the straight side. When the blade rotates, the octagonal blade cuts the paper film intermittently in a dotted manner, and the cutting of the paper film is reliable and stable. The reduction gearbox can reduce the rotation speed and reduce the linear speed of the blade. An elastic coupling is provided to reduce operating noise and vibration. A double-bearing assembly with a seat is provided to ensure stable operation of the rotating cutter shaft. A flange gasket is installed on the cutter shaft to improve the operating accuracy of the second blade, reduce the amount of runout, and increase the service life of the bearing. A hexagonal nut is provided at one end of the cutter shaft with a fine thread and a small helix angle. The nut is not easy to loosen and the tightening torque is large, ensuring the stability of the blade operation. The rotation direction of the cutter shaft is opposite to the tightening direction of the hexagonal nut. The reverse force of the hexagonal nut tightens the hexagonal blade and prevents the blade from loosening. A double-rod slide cylinder extends the first blade to cut the insulating paper and retracts it into the protective cover after cutting. This prevents injuries such as finger cuts when cleaning the machine or inserting insulating paper and film. A scale indicator is provided on the adjustment column to provide a reference for adjusting the height of the longitudinal cutting assembly. The first blade is positioned in a groove on the pressure plate to prevent it from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those skilled in the art by reading the following detailed description of the preferred embodiment.The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0035] FIG1 is an overall structural diagram of a capacitor wrapping paper film cutting device according to the present invention;

[0036] FIG2 is a schematic structural diagram of a longitudinal cutting assembly according to the present invention;

[0037] FIG3 is a schematic diagram of the longitudinal cutting assembly of the present invention in operation and standby mode;

[0038] FIG4 is a three-view diagram of the transverse cutting assembly of the present invention;

[0039] FIG5 is a schematic diagram of the structure of the cutter shaft of the present invention;

[0040] FIG6 is a three-view diagram of a double bearing assembly with a seat according to the present invention.

[0041] Explanation of the reference numerals 101: guide part; 102: pressing part; 2: longitudinal cutting assembly; 201: mounting base; 202: double-rod cylinder; 203: knife seat; 204: pressure plate; 205: first protective cover; 206: first blade; 207: scale indicator strip; 208: adjustment column; 209: scale; 210: clamp; 3: transverse cutting assembly; 301: rodless cylinder; 302: connecting plate; 303: motor and reduction box assembly; 304: elastic coupling; 305: double bearing assembly with seat; 306: rotating knife shaft assembly; 307: flange gasket; 308: second blade; 309: round nut; 310: second protective cover; 311: third protective cover; 312: knife groove column. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0043] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. As used herein, "one" not only means "only one" but also "more than one."

[0044] The advantages and features of the present invention will become more apparent from the following description and claims.

[0045] Example

[0046] Referring to Figures 1 to 6, this embodiment of a capacitor wrapping paper film cutting device addresses issues such as difficulty in horizontally cutting paper films, low reliability, and high cutting failure rates. This embodiment can cut both thin films with sufficient toughness and insulating paper that is not fully tightened, significantly reducing cutting failures, reducing operation time, and meeting production output requirements. Furthermore, to address the safety concern of vertical cutting tools that can easily cause personal injury, this embodiment features a set of blades that extend during operation and retract afterward, ensuring safe production.

[0047] With reference to FIG1 , the entire embodiment will now be described, which includes: a wrapping transfer assembly, a longitudinal cutting assembly 2, and a transverse cutting assembly 3. The wrapping transfer assembly is the unloading shaft of the wrapping machine. The insulating paper and film are placed on the starting end of the unloading shaft of the wrapping machine. The insulating paper and film are rotated by the transmission roller. The wrapping transfer assembly realizes the synchronous transmission of the insulating paper and film, and is cut in turn by the longitudinal cutting assembly 2 and the transverse cutting assembly 3. Then, the insulating paper and film are transported to the capacitor core to be wound and wound around. A guide portion 101 and a pressing portion 102 are also provided during the transmission process of the wrapping transfer assembly. Along the transmission direction of the insulating paper and film, the insulating paper and film first pass through the guide portion 101. The guide portion 101 is two staggered guide wheels, and its function is to achieve preliminary bonding of the insulating paper and film. Then, the insulating paper and film pass through the longitudinal cutting assembly 2, which is provided on one side of the transfer portion, and is used to cut the excess portion of the upper edge of the insulating paper being transmitted. Next, the material enters the clamping section 102, which consists of two opposing clamping wheels that tightly fit the insulating paper and film, facilitating smooth cutting by the transverse cutting assembly 3. Furthermore, the transverse cutting assembly 3, also located on one side of the transfer section, cuts the insulating paper and film after the capacitor core is wound. Finally, the material is transferred to the capacitor core for winding.

[0048] Referring to Figures 2 and 3 , the longitudinal cutting assembly 2 of this embodiment will now be described. It comprises a mounting base 201, a first power unit, a blade mounting assembly, and a first blade 206. Mounting base 201 utilizes a rectangular bracket. The first power unit is mounted on the upper end surface of mounting base 201, and the blade mounting assembly is connected to the power end of the first power unit. First blade 206 is mounted within the blade mounting assembly. Driven by the first power unit, first blade 206 extends from the blade mounting assembly to the wrapping transfer assembly, where it cuts the excess portion of the insulation paper being transferred.

[0049] Specifically, the first power unit is a double-rod cylinder 202, and a slide is provided on the upper portion of the double-rod cylinder 202, wherein the slide slides in a direction perpendicular to the transmission direction. The blade mounting assembly is fixed on the slide and can move along with the slide.

[0050] The blade mounting assembly includes a knife seat 203 and a pressure plate 204. The knife seat 203 is a steel plate fixed above the slide. The pressure plate 204 is fixed above the knife seat 203. A groove is provided below the pressure plate 204, and a storage space is formed with the upper end face of the knife seat 203. The first blade 206 is fixed in the storage space. Therefore, the first blade 206 is actually placed on the upper end face of the knife seat 203. A plurality of screw holes are provided on the knife seat 203, and a plurality of screw holes are provided on the pressure plate 204 correspondingly. The first blade 206 is fixedly connected to the knife seat 203 and the pressure plate 204 respectively by screws, and the position of the screw hole is selected according to actual use needs to adjust the length of the first blade 206. The first blade 206 is made of a utility blade, which has a thin blade and a sharp edge, and is easy to cut insulating paper. The tail hole of the blade can be threaded with a screw for fixing.

[0051] Preferably, the longitudinal cutting assembly 2 is further provided with a first protective cover 205, which is mounted on the mounting base 201, similar to a scabbard. In operation, the first blade 206 extends out of the first protective cover 205 along with the slide of the cylinder. In standby mode, the first blade 206 retracts into the first protective cover 205. This prevents accidents such as finger cuts when cleaning the machine or inserting insulating paper or film.

[0052] Preferably, referring to Figures 2 and 3, this embodiment further includes a support assembly, to which one side of the mounting base 201 is fixedly connected. Specifically, the support assembly includes an adjustment column 208, a scale 209, a clamping plate 210, and a scale indicator strip 207. The adjustment column 208 is a rectangular square tube, erected on the ground. A slot is defined on one side of the adjustment column 208, which is connected to the mounting base 201. A clamping plate 210 is positioned within the slot, and the clamping plate 210 has two internally threaded holes. The mounting base 201 and the clamping plate 210 are fixedly connected by tightening screws. After loosening the screws, the clamping plate 210 and the mounting base 201 can be moved together to adjust the height of the mounting base 201. After adjustment, the screws are tightened again. A scale 209 is attached to the adjustment column 208, and a degree value is engraved on the scale 209. An indicator strip is mounted on the side of the first protective cover 205. The scale indicator strip 207 cooperates with the scale 209 to read the current height value of the longitudinal cutting assembly 2.

[0053] 4 , the transverse cutting assembly 3 of this embodiment will now be described, which includes a second power unit, a connecting plate 302 , a blade assembly and a slit column 312 .

[0054] The second power unit uses a rodless cylinder 301, which is a mechanical cylinder with a guide rail, which drives the connecting plate 302 and the blade assembly to achieve linear motion. The interior of the cylinder is a long piston structure, and the offset is small when loaded. The rodless cylinder 301 is provided with a sliding block, which is controlled by the rodless cylinder 301 to slide along the transmission direction. One side of the connecting plate 302 is connected to the sliding block of the rodless cylinder 301, and the blade assembly is fixed to the other side of the connecting plate 302. The blade assembly will move synchronously with the sliding block. The knife groove column 312 and the blade assembly are respectively arranged on both sides of the transmission part. The knife groove column 312 is provided with a knife groove that matches the second blade 308 in the blade assembly. Specifically, the knife groove column 312 adopts a rectangular square tube with a 3mm knife groove on the vertical surface. The second blade 308 extends about 3mm into it. The paper film is attached to the vertical surface. The second blade 308 extends into the knife groove column 312 and rotates to fully cut the paper film.

[0055] Specifically, the blade assembly is divided into a motor and reduction box assembly 303, an elastic coupling 304, a seat double bearing assembly 305 and a rotating cutter shaft assembly 306. The motor drives the reduction box, which in turn drives the seat double bearing assembly 305 and the second blade 308 to operate.

[0056] The motor and reduction gearbox assembly 303 consists of a motor, a reduction gearbox, and a bracket, and is used to output rotational power. The motor uses a 24V DC safe voltage, 30W, 421 rpm DC motor, and the reduction gearbox uses a planetary gearbox. The motor and reduction gearbox are integrated into a single unit, allowing for adjustable speed. The bracket is an angle iron bracket, one side of which is connected to the motor and reduction gearbox assembly 303 and the other side is fixed to the connecting plate 302. This allows the motor and reduction gearbox assembly 303 to move with the sliding block, preventing the risk of electric shock.

[0057] The output shaft of the motor and reduction box assembly 303 is connected to one end of the elastic coupling 304, and the other end of the elastic coupling 304 is connected to the knife shaft of the rotating knife shaft assembly 306. The elastic coupling 304 adopts a plum blossom elastic coupling 304, which can freely adjust the operation accuracy, has low noise, and is easy to maintain and disassemble.

[0058] The double-bearing seat assembly 305 is mounted on the blade shaft and located between the elastic coupling 304 and the rotating blade shaft assembly 306. It consists of a bearing, a bearing seat, and a spacer. The rotating blade shaft assembly 306 includes the blade shaft, a turnbuckle washer, a flange washer 307, a round nut 309, and a second blade 308. The blade shaft is assembled between the two bearings, with one end connected to the elastic coupling 304, the middle connected to the double-bearing seat assembly 305, and the other end connected to the flange step. The second blade 308, flange washer 307, and the turnbuckle washer are then installed in the blade shaft and tightened with the round nut 309. The round nut 309 is also used to adjust the radial clearance of the bearings. The turnbuckle washer locks the round nut 309 to prevent it from loosening and causing the blade shaft to jump. The spacer is connected between the double-bearing seat assembly 305 and the connecting plate 302. The second blade 308 is located on both sides of the outer edge surface of the flange gasket 307 and the flange step surface. The center hole of the second blade 308 is connected to the cutter shaft, which can ensure the verticality of the flange surface and the cutter shaft, improve the blade operation accuracy, and reduce the noise of high-speed operation.

[0059] Among them, the second blade 308 adopts an octagonal blade with a thickness of 1mm and a diameter of 70mm. It is an octagonal blade with sharp cutting edges and an octagonal arc transition. It has eight sharp arc surfaces, which can cut the paper film in a point-like manner. The cutting force is large and the paper film can be easily cut. The irregular arc cutting of the paper film at high speed is more stable and reliable. The running direction of the octagonal blade adopts the forward cutting direction to cut the paper film. The above-mentioned round nut 309 adopts a hexagonal nut with fine thread and small helix angle. The nut is not easy to loosen and the tightening torque is large; the spiral direction is left-handed (reverse thread). The nut and the rotating shaft run together. The reverse force of the nut tightens the flange and the second blade 308, preventing the nut from loosening.

[0060] Preferably, the transverse cutting assembly 3 is also provided with a second protective cover 310 and a third protective cover 311. The second protective cover 310 is mounted on the outside of the flange gasket 307, the octagonal blade and the hexagonal nut to prevent contact, prevent damage to the blade due to high-speed operation, and prevent personal injury caused by splashing debris. One side of the second protective cover 310 is connected to the connecting plate 302, and a through slit is provided on the side close to the transmission part, through which the second blade 308 extends to the outside for cutting. A guide bell mouth is provided in the paper film input direction to facilitate the introduction of the paper film. In addition, a hinged door is provided on the side end face in the paper film input direction to facilitate the replacement of the octagonal blade. The third protective cover 311 covers the outside of the motor and reducer assembly 303 and the elastic coupling 304, and is connected to the connecting plate 302. It is used to protect the motor and reducer assembly 303 and the elastic coupling 304 from damage by external forces and to prevent the coupling from rotating at high speed and injuring people.

[0061] The working process of this embodiment is now explained: the insulating paper and film are placed at the starting end of the discharge shaft of the wrapping machine, which is rotated by the transmission roller to drive the insulating paper and film to move in a straight line. The first blade 206 is extended from the first protective cover 205 by the double-rod cylinder 202 and inserted into the insulating paper. As the insulating paper moves in a straight line, the excess part on the insulating paper is cut, and the waste paper winding machine (not shown in the figure) rolls up the excess insulating paper. Subsequently, the paper film will enter the next process along the horn guide port of the second protective cover 310. It is necessary to manually place the paper film (insulating paper and film) on the surface of the core, and fix the paper film with water-soluble tape. The tension is set by the tension shaft controller. Under the guidance of the discharge shaft of the wrapping machine, the main shaft of the wrapping machine drives the core to rotate, and the paper film is wrapped around the core. After rotating a number of circles, it stops rotating. The motor of the transverse cutting component 3 automatically starts a few seconds in advance, and the octagonal blade runs smoothly. The clamping wheel compresses the paper film, and the rodless cylinder 301 rises slowly from bottom to top in a straight line. Under the high-speed operation of the octagonal blade, the paper film is cut from bottom to top. After the work is completed, the first blade 206 automatically retracts into the first protective cover 205.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A capacitor wrapping paper film cutting device, characterized in that: include: Wrapping transfer assembly, longitudinal cutting assembly and transverse cutting assembly; The wrapping and transferring assembly is used to transfer the insulating paper and the film and wrap them around the capacitor core; The longitudinal cutting assembly is arranged at one side of the transfer part of the wrapping transfer assembly, and is used to cut the excess part of the upper edge of the insulation paper being transferred; The transverse cutting assembly is arranged on one side of the transmission part, and is used to cut the insulating paper and the film after the capacitor core is wound; Along the transfer direction of the insulating paper and the film, the longitudinal cutting assembly is located at the front end of the transverse cutting assembly.

2. The capacitor wrapping paper film cutting device according to claim 1, characterized in that: The longitudinal cutting assembly includes a mounting base, a first power unit, a blade mounting assembly and a first blade; The mounting base is a right-angle bracket, the first power unit is mounted on the upper end surface of the mounting base, and the power end of the first power unit is connected to the blade mounting assembly; the first blade is mounted in the blade mounting assembly, and the first blade follows the blade mounting assembly and extends to the wrapping transfer assembly under the push of the first power unit, so as to cut the excess part of the upper edge of the insulating paper being transferred.

3. The capacitor wrapping paper film cutting device according to claim 2, characterized in that: The first power unit is a double-rod cylinder, a slide is provided on the upper part of the double-rod cylinder, the sliding direction of the slide is perpendicular to the transmission direction, the blade mounting assembly is fixed on the slide and moves with the movement of the slide; The blade mounting assembly includes a blade seat and a pressing plate, wherein the blade seat is fixed above the slide, and the pressing plate is fixed above the blade seat, a groove is provided below the pressing plate, and forms an accommodating space with the upper end surface of the blade seat, and the first blade is fixed in the accommodating space; The knife seat is provided with a plurality of screw holes, and the pressure plate is provided with a plurality of screw holes correspondingly. The first blade is connected to the knife seat and the pressure plate by bolts, and the length of the first blade is adjusted according to the position of the screw holes.

4. The capacitor wrapping paper film cutting device according to claim 2, characterized in that: The longitudinal cutting assembly is also provided with a first protective cover, which is sleeved on the mounting base. In the working state, the first blade extends out of the first protective cover, and in the standby state, the first blade is located in the first protective cover.

5. The capacitor wrapping paper film cutting device according to claim 4, characterized in that: A support assembly is also provided, and one side of the longitudinal cutting assembly is fixedly connected to the support assembly; The support assembly includes an adjustment column, a ruler, a clamping plate and a ruler indicator strip; The adjustment column is a rectangular square tube, one side of the adjustment column is provided with a long slot, the clamping plate is in the long slot, the clamping plate is provided with an internal threaded hole, the mounting base is bolted to the clamping plate, and the height of the mounting base can be adjusted by moving the clamping plate; The ruler is arranged on the adjusting column, the ruler indicator bar is installed on the first protective cover, and the ruler indicator bar cooperates with the ruler to mark the current height of the longitudinal cutting assembly.

6. The capacitor wrapping paper film cutting device according to claim 1, characterized in that: The transverse cutting assembly includes a second power unit, a connecting plate, a blade assembly and a knife groove column; The second power unit is a rodless cylinder, one side of the connecting plate is connected to the rodless cylinder, the blade assembly is fixed to the other side of the connecting plate, the knife groove column and the blade assembly are respectively arranged on both sides of the transmission part, the knife groove column is provided with a knife groove that matches the second blade in the blade assembly, and the blade assembly cooperates with the knife groove column to cut the insulating paper and film after winding.

7. The capacitor wrapping paper film cutting device according to claim 6, characterized in that: The rodless cylinder is provided with a sliding block, and the sliding block is controlled by the rodless cylinder to slide along the transmission direction, and the blade assembly moves synchronously with the sliding block.

8. The capacitor wrapping paper film cutting device according to claim 6, characterized in that: The blade assembly includes a motor and a reduction box assembly, an elastic coupling, a double bearing assembly with a seat and a rotating blade shaft assembly; The output shaft of the motor and reduction box assembly is connected to one end of the elastic coupling, the other end of the elastic coupling is connected to the knife shaft of the rotating knife shaft assembly, and the double bearing assembly with a seat is sleeved on the knife shaft and located between the elastic coupling and the rotating knife shaft assembly; The motor and reduction box assembly is used to output rotational power, the elastic coupling is used to adjust the operation accuracy, the double bearing assembly with seat is used to prevent the knife shaft from jumping, and the rotating knife shaft assembly is used for cutting.

9. The capacitor wrapping paper film cutting device according to claim 8, characterized in that: The transverse cutting assembly is also provided with a second protective cover and a third protective cover; the second protective cover is sleeved on the outside of the rotating knife shaft assembly and connected to the connecting plate, and a through slit is opened on the side of the second protective cover close to the transmission part, and the second blade extends to the outside through the through slit for cutting; the third protective cover is sleeved on the outside of the motor and reduction box assembly and the elastic coupling, and connected to the connecting plate, for protecting the motor and reduction box assembly and the elastic coupling.

10. The capacitor wrapping paper film cutting device according to claim 1, characterized in that: The wrapping transfer assembly comprises the transfer portion, the guide portion and the pressing portion; Along the transmission direction, the guide part is arranged at the front end of the longitudinal cutting component, and the clamping part is arranged between the longitudinal cutting component and the transverse cutting component; the guide part is used to achieve preliminary fitting of the insulating paper and the film, and the clamping part is used to achieve tight fitting of the insulating paper and the film.

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