CN115229862B - An adjustable film slitting device with dust collection function for film capacitor production - Google Patents

Abstract

The invention discloses an adjustable film slitting device with a dust collection function for the production of film capacitors. It includes a base with a supporting function, a slitting knife, an upper conveyor roller, an adjustment mechanism and a dust collection box. The base passes through a lower end. The support feet are placed directly on the ground, the slitting knife is used to slit the metallized film, the upper conveying roller is set in the middle of the support frame, and the adjustment mechanism is used to limit the space between the installation column and the movable frame. position, the dust collecting box is connected through the middle of the upper end of the base. The adjustable film slitting device with dust collection function for the production of film capacitors facilitates the clamping and transportation of metallized films, improves the stability during the slitting process, and facilitates control of the number of slitting knives used, thereby enabling the The cutting size of the metallized film can be adjusted, and through the setting of the dust collection box, the collected dust debris and other waste materials can be transported and cleaned.

Description

An adjustable film slitting device with dust collection function for film capacitor production

Technical field

The invention relates to the technical field related to the production of film capacitors, specifically an adjustable film slitting device with a dust collection function for the production of film capacitors.

Background technique

Film capacitors refer to capacitors made by overlapping metal foils such as aluminum as electrodes and plastic films and then rolling them together. They use metallized thin plastic films as dielectrics. Capacitors are usually made by rolling rollers, and the metal During the actual production and processing of the metalized film, the metallized film on the roll needs to be slit, so it is necessary to use the corresponding slitting device for cutting;

However, the commonly used film slitting devices for film capacitor production still have the following shortcomings:

1. The existing film slitting device for film capacitor production has poor stability of the metallized film during the actual slitting process, which makes it inconvenient to clamp and transport the metallized film, affecting the actual slitting. Effect;

2. Most of the existing film slitting devices for the production of thin film capacitors directly slit the metallized film through a slitting knife. It is inconvenient to adjust the actual slitting size of the metallized film according to the actual slitting needs, and it is cumbersome to use. convenient;

3. The existing film slitting device for film capacitor production is inconvenient to collect and clean the dust, debris, scraps and other waste materials generated during slitting, resulting in a messy working environment.

Therefore, we propose an adjustable film slitting device with dust collection function for the production of film capacitors to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide an adjustable film slitting device with a dust collection function for the production of film capacitors, so as to solve the problem of unstable stability of the metallized film during the actual slitting process proposed by the above-mentioned background technology. Well, it is inconvenient to clamp and transport the metallized film, which affects the actual cutting effect. Most of the metallized films are cut directly through the slitting knife, and it is inconvenient to adjust the actual cutting size of the metallized film according to the actual cutting requirements. It is inconvenient to adjust and use. When slitting, it is inconvenient to collect and clean the dust, debris, scraps and other waste materials generated, resulting in a messy working environment.

In order to achieve the above object, the present invention provides the following technical solution: an adjustable film slitting device with a dust collection function for the production of film capacitors, including a base with a supporting function, and the base is directly placed on the ground through the supporting feet at the lower end. And the left and right sides of the upper end of the base are welded with vertical fixed brackets, and the upper left end of the fixed bracket is rotated with a sleeve, and the upper right end of the fixed bracket is equipped with a winding roller;

Slitting knife, the slitting knife is used to slit the metallized film, and the slitting knife is fixedly connected to the lower end of the "I"-shaped structure of the mounting column through bolts, and the mounting column is plugged into the lower end of the movable frame ;

Also includes:

The upper conveying roller is arranged in the middle of the support frame, and the upper conveying roller is rotationally connected to the lower end of the mounting frame, and the upper conveying roller moves up and down inside the support frame through the mounting frame, and the upper conveying roller is combined with the lower end of the mounting frame. The conveying roller is used to clamp and limit the slit metalized film;

Adjustment mechanism, the adjustment mechanism is used to limit the position between the installation column and the movable frame, and the adjustment mechanism is symmetrically arranged at the front and rear ends of the installation column;

Wherein, the adjustment mechanism includes a horizontal adjustment rod, a second spring sleeved on the outer surface of the adjustment rod, a limit block fixedly connected to the movable end of the second spring and in a "U" shape structure, Movable sleeve for connection and fixed bolt with limiting function;

A dust collection box is connected through the middle of the upper end of the base, and a dust-proof filter is installed at the bottom of the dust collection box. The dust collection box collects and transfers dust through an air suction device and a wind hood, and is dust-proof. The filter forms a disassembly structure inside the dust box through the limiting mechanism;

At the same time, the dust filter is fixedly connected to the middle part of the fixed plate.

Preferably, a lower conveyor roller is rotatably connected to the middle part of the support frame, and the lower conveyor roller is arranged below the upper conveyor roller, and the upper conveyor roller and the support frame are limited by a fixed block, and the fixed block and the movable column fixed connection between them.

Preferably, the movable column is slidingly connected to the front and rear ends of the mounting frame, and the mounting frame and the support frame are connected through slots, and a first spring is provided between the movable column and the mounting frame, and the movable column The fixed block is driven to engage with the corresponding position on the inside of the support frame.

Preferably, the middle part of the base is fixedly connected with an auxiliary frame, and the upper end of the auxiliary frame is equipped with an electric telescopic rod for driving, and the output end of the electric telescopic rod is fixedly connected with a movable frame with a frame-shaped structure, and the upper end of the movable frame is A vertical fixed rod is fixedly connected to the edge.

Preferably, the movable frame drives the upper end of the fixed rod and the auxiliary frame to slide, and the lower end of the movable frame is fixedly connected to the adjusting rod, and the adjusting rod is slidingly connected to the limit block;

Wherein, the limiting block and the mounting frame are connected through engagement.

Preferably, the mounting frame is fixedly connected to the upper and lower ends of the mounting column respectively, and the mounting columns are arranged at equal intervals at the lower end of the movable frame, and the mounting column drives the slitting knife to form a lifting structure at the lower end of the movable frame.

Preferably, the limit block and the movable sleeve are fixedly connected, and the movable sleeve is set on the outer surface of the adjusting rod, and the position between the movable sleeve and the adjusting rod is limited by a fixed bolt, and the fixed bolt and the adjusting rod and the fixed Both the bolt and the movable sleeve are threaded.

Preferably, the lower end of the dust collecting box is arranged in close contact with the air hood, and the wind hood is connected to the suction ends of the air suction devices installed on the left and right sides of the base through bellows, and the left and right sides of the upper end of the dust collecting box are Handles are fixedly connected to both sides, and limit mechanisms are provided on the left and right sides of the bottom of the dust box.

Preferably, the limiting mechanism includes an auxiliary plate hingedly connected to the lower end of the dust collecting box, a torsion spring disposed between the auxiliary plate and the dust collecting box, fixedly connected to the left and right sides of the upper end of the fixed plate and provided with an outer surface. Threaded connecting posts and connecting sleeves for fixing the limit.

Preferably, the auxiliary plate forms a flip structure at the lower end of the dust box, and the auxiliary plate and the connecting column are connected by a slot, and the connecting column and the connecting sleeve are connected by a thread, and the connecting column is connected by a thread. The sleeve is fitted and arranged on the upper surface of the auxiliary board;

Wherein, the auxiliary plate is used to compress and limit the fixed plate.

Compared with the existing technology, the beneficial effects of the present invention are: during actual use, the adjustable film slitting device with dust collection function for the production of film capacitors can cut the metallized film through the lower conveying roller and the upper conveying roller. Clamping and conveying improves the stability during the slitting process. Combined with the adjustment mechanism, the installation column is driven to adjust the height of the slitting knife, which facilitates control of the number of slitting knives used, thereby enabling the slitting size of the metallized film to be adjusted. Adjustment is made, and through the setting of the dust collection box, the collected dust debris and other waste materials can be transported and cleaned to prevent the working environment from being cluttered. Combined with the setting of the limit mechanism, it is easy to disassemble and clean the dust filter. The overall structure is simple. Very easy to use;

1. There is a support frame, a lower conveyor roller and an upper conveyor roller. The lower conveyor roller is rotatably connected to the middle part of the support frame. At the same time, there is an upper conveyor roller above the lower conveyor roller. The upper conveyor roller is rotatably connected to the lower end of the installation frame. The settings of the lower conveyor roller and the upper conveyor roller can clamp, convey and limit the slit metallized film, which improves the stability of slitting the metallized film, thereby improving the processing quality of the metallized film;

2. It is equipped with a movable frame, a mounting column and an adjustment mechanism. The mounting columns are set at equal intervals at the lower end of the movable frame. The slitting knife is driven up and down through the mounting column, and the height of the slitting knife can be adjusted to achieve the desired slitting performance. The number of knives used can be controlled, so that the cutting size of the metallized film can be adjusted. Combined with the setting of the adjustment mechanism, it is convenient to limit the position between the installation column and the movable frame, and the stability is good;

3. It is equipped with a dust collection box, dust-proof filter and limit mechanism. The air suction device sucks dust debris and other waste materials generated during the slitting process into the dust collection box for collection. The setting of the dust collection box facilitates the collection. The dust debris and other waste materials are transported and cleaned, and combined with the setting of the limit mechanism, it is convenient to disassemble and clean the dust filter and prevent the dust filter from being blocked.

Description of the drawings

Figure 1 is a schematic front view of the structure of the present invention;

Figure 2 is a schematic side structural view of the connection between the support frame, the lower conveyor roller, the upper conveyor roller and the mounting frame of the present invention;

Figure 3 is a schematic cross-sectional view of the connection between the support frame, the lower conveyor roller and the upper conveyor roller of the present invention;

Figure 4 is a schematic structural diagram of the front view of the connection between the upper conveyor roller, mounting bracket, movable column and fixed block according to the present invention;

Figure 5 is a schematic side structural view of the connection between the auxiliary frame, the movable frame and the slitting knife of the present invention;

Figure 6 is a schematic side structural view of the connection between the movable frame, the slitting knife and the mounting column of the present invention;

Figure 7 is an enlarged structural schematic diagram of position A in Figure 6 of the present invention;

Figure 8 is a schematic side view of the overall structure of the connection between the adjusting rod, the limit block and the movable sleeve according to the present invention;

Figure 9 is an enlarged structural schematic diagram of position B in Figure 1 of the present invention;

Figure 10 is a schematic cross-sectional view of the connection between the dust box, dust filter and fixed plate of the present invention;

Figure 11 is a schematic front structural view of the connection between the auxiliary plate, the torsion spring and the connecting column of the present invention.

In the picture: 1. Base; 2. Fixed bracket; 3. Sleeve; 4. Support frame; 5. Lower conveying roller; 6. Upper conveying roller; 7. Installation frame; 8. Movable column; 9. First spring; 10. Fixed block; 11. Auxiliary frame; 12. Electric telescopic rod; 13. Movable frame; 14. Fixed rod; 15. Slitting knife; 16. Installation column; 17. Installation frame; 18. Adjustment mechanism; 19. Adjustment Rod; 20. Second spring; 21. Limiting block; 22. Movable sleeve; 23. Fixing bolt; 24. Air suction device; 25. Wind cover; 26. Dust collection box; 27. Dust filter; 28. Fixed plate; 29. Limiting mechanism; 30. Auxiliary plate; 31. Torsion spring; 32. Connecting column; 33. Connecting sleeve; 34. Rewinding roller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-11. The present invention provides a technical solution: an adjustable film slitting device with dust collection function for the production of film capacitors, including a base 1, a fixed bracket 2, a sleeve 3, a support frame 4, and a bottom Conveying roller 5, upper conveying roller 6, mounting frame 7, movable column 8, first spring 9, fixed block 10, auxiliary frame 11, electric telescopic rod 12, movable frame 13, fixed rod 14, slitting knife 15, mounting column 16. Installation frame 17, adjustment mechanism 18, adjustment rod 19, second spring 20, limit block 21, movable sleeve 22, fixed bolt 23, air suction device 24, wind hood 25, dust box 26, dust filter 27. Fixed plate 28, limiting mechanism 29, auxiliary plate 30, torsion spring 31, connecting column 32, connecting sleeve 33 and winding roller 34.

When using the adjustable film slitting device with dust collection function for film capacitor production, the base 1 is directly placed on the ground through the supporting feet at the lower end as shown in Figures 1, 2, 3 and 4, and the upper end of the base 1 The left and right sides of the base are welded with vertical fixed brackets 2. The upper left end of the fixed bracket 2 is rotated with a sleeve 3. At the same time, the upper end of the base 1 is fixedly connected with a support frame 4, and the middle part of the support frame 4 is rotationally connected with a lower end. An upper conveyor roller 6 is provided above the conveyor roller 5 and the lower conveyor roller 5, and the upper conveyor roller 6 is rotatably connected to the lower end of the mounting frame 7. The mounting frame 7 and the support frame 4 are connected by a slot, and are installed at the same time. The position between the frame 7 and the support frame 4 is limited by the movable column 8 and the fixed block 10. By pressing the first spring 9, the movable column 8 and the mounting frame 7 slide, and the movable column 8 squeezes the first spring 9. Press, so that the first spring 9 undergoes elastic deformation, and the movable column 8 and the fixed block 10 are fixedly connected. The movable column 8 drives the fixed block 10 to separate from the inside of the support frame 4, and loosens the connection between the support frame 4 and the mounting frame 7. limit;

Then pull the mounting frame 7 upward to drive the upper conveyor roller 6 to move inside the support frame 4, and then insert the metallized film wrapped around the outer surface of the sleeve 3 between the lower conveyor roller 5 and the upper conveyor roller 6, and then The mounting frame 7 drives the upper conveying roller 6 to move downward, and the mounting frame 7 and the supporting frame 4 slide. When the upper conveying roller 6 and the lower conveying roller 5 clamp the metallized film, the movable column 8 is released. When the first spring 9 recovers its elastic deformation, it drives the movable column 8 and the mounting bracket 7 to slide, so that the fixed block 10 and the corresponding position on the inside of the supporting bracket 4 are engaged, and the mounting bracket 7 and the supporting bracket 4 are connected. The upper conveyor roller 6 is clamped by the upper conveyor roller 6 and the lower conveyor roller 5, which can limit the metallized film to a certain extent, so that the metallized film can be It is more stable during the slitting process, and the other end of the metallized film is wound on the winding roller 34. The winding roller 34 is rotated by an external driving device to wind up the metallized film after slitting;

After the metallized film is limited, according to the actual size requirements for metallized film cutting, as shown in Figure 5, Figure 6, Figure 7 and Figure 8, the middle part of the base 1 is fixedly connected with an auxiliary frame 11, and the auxiliary frame 11 An electric telescopic rod 12 for driving is installed on the upper end, and the output end of the electric telescopic rod 12 is fixedly connected to a movable frame 13 with a frame-shaped structure. A vertical fixed rod 14 is fixedly connected to the edge of the upper end of the movable frame 13. And the lower end of the movable frame 13 is provided with mounting columns 16 in an "I"-shaped structure at equal intervals. The mounting columns 16 are connected to the movable frame 13. The upper and lower ends of the mounting column 16 are fixedly connected to the mounting frames 17, and are divided into The cutter 15 is fixed to the lower end of the mounting column 16 through bolts. The position between the mounting column 16 and the movable frame 13 is limited by an adjusting mechanism 18. The adjusting mechanism 18 includes a horizontal adjusting rod 19 and is sleeved on the outer surface of the adjusting rod 19. The second spring 20, the limiting block 21 fixedly connected to the movable end of the second spring 20 and having a "U"-shaped structure, the movable sleeve 22 for connection and the fixing bolt 23 with a limiting function;

By sliding between the mounting column 16 and the movable frame 13, the slitting knife 15 is driven to rise and fall, so that the number of slitting knives 15 can be controlled by adjusting the height of the slitting knife 15, thereby facilitating the metallization film The cutting size is adjusted according to the actual cutting size requirements by rotating the fixed bolt 23. The fixed bolt 23 and the movable sleeve 22 and the fixed bolt 23 and the adjusting rod 19 are all threaded. The fixed bolt 23 and the movable sleeve 22 are all threaded. disengage, and then loosen the limit between the movable sleeve 22 and the adjustment rod 19. At this time, the second spring 20, which was originally in a compressed elastic deformation state, resumes its elastic deformation and pushes the limit block 21 and the adjustment rod 19 to slide. The limit block 21 drives the movable sleeve 22 and the adjusting rod 19 to slide, and the upper end of the limit block 21 is separated from the mounting frame 17 at the upper end of the mounting column 16, thereby loosening the connection between the mounting column 16 and the movable frame 13. limit;

Then pull upward the mounting column 16 at the upper end of the slitting knife 15 that is not in use. The mounting column 16 slides with the movable frame 13 to drive the slitting knife 15 to move upward. After pulling to the corresponding position, move closer to the slitting knife 15 Push the limit block 21 on one side, and the limit block 21 and the adjustment rod 19 slide. The limit block 21 squeezes the second spring 20, causing the second spring 20 to elastically deform. The lower end of the second spring 20 It is engaged in the installation frame 17 at the lower end of the installation column 16, and the installation column 16 and the movable frame 13 are fixed. Then the fixing bolt 23 is rotated, and the fixing bolt 23 is used to fix the position between the movable sleeve 22 and the adjusting rod 19. , and then it is convenient to control the number of slitting knives 15 to meet the requirements for adjusting the slitting size of the metallized film, and it is very convenient to use;

After the adjustment is completed, start the driving device that controls the winding roller 34 to drive the winding roller 34 to rotate at the upper right end of the sleeve 3. The winding roller 34 winds up the metallized film and passes through it during the winding and transmission process. The lower conveying roller 5 and the upper conveying roller 6 clamp the metallized film to make the conveying of the metallized film more stable. At the same time, the electric telescopic rod 12 is started, and the electric telescopic rod 12 drives the slitting knife 15 through the movable frame 13 and the installation column 16 Moving downward, the movable frame 13 drives the suction device 24 and the auxiliary frame 11 to slide, making the movement of the movable frame 13 more stable, allowing the slitting knife 15 to cut the metallized film, which is very convenient to use. At the same time, as shown in the figure 9. As shown in Figure 10 and Figure 11, start the air suction devices 24 installed on the left and right sides of the base 1. The air suction end of the air suction device 24 is connected to the air hood 25 through the bellows, and the air hood 25 is set to fit At the lower end of the dust collecting box 26, a dust filter 27 is provided at the bottom of the dust box 26. The dust filter 27 is fixedly connected to the middle part of the fixed plate 28. The air suction device 24 can remove dust and dust generated during the cutting process. Debris and other waste materials are sucked into the dust collection box 26 for collection to prevent pollution to the working environment and are highly practical;

In addition, after the cutting is completed, turn off the power, hold the handles on the left and right sides of the upper end of the dust collecting box 26 to take out the dust collecting box 26 from the base 1, so as to facilitate the transfer and cleaning of the dust and waste materials collected inside the dust collecting box 26, and After the cleaning is completed, the limiting mechanism 29 is symmetrically arranged on the left and right sides of the dust collecting box 26 through the setting of the limiting mechanism 29. The limiting mechanism 29 includes an auxiliary plate 30 hingedly connected to the lower end of the dust collecting box 26. The torsion spring 31 between the auxiliary plate 30 and the dust collecting box 26, the connecting posts 32 fixedly connected to the left and right sides of the upper end of the fixed plate 28 and provided with threads on the outer surface, and the connecting sleeve 33 for fixing the limit are connected by rotating threads. The connecting sleeve 33 on the outer surface of the connecting column 32 is separated from the connecting column 32, and the limit between the auxiliary plate 30 and the fixed plate 28 is released, and the auxiliary plate 30 and the connecting column 32 are connected in a slot. Pull the auxiliary plate 30, the auxiliary plate 30 and the dust collecting box 26 rotate, the torsion spring 31 undergoes elastic deformation, the auxiliary plate 30 is separated from the connecting column 32, the pressing limit of the fixed plate 28 is released, and the fixed plate 28 is The dust-proof filter 27 is driven to be taken out from the inside of the dust collecting box 26, which facilitates disassembly and cleaning of the dust-proof filter 27 and prevents the dust-proof filter 27 from clogging. The overall structural design is simple and is very convenient to use.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art. The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and drawings. , the specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional methods in the prior art. The connection method will not be described in detail here.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (3)

1. The utility model provides a film capacitor production is with adjustable membrane cutting device with dust absorption function, includes base (1) that has the supporting role, base (1) is directly arranged in ground through the supporting legs of lower extreme, and the left and right sides of base (1) upper end all welds fixed bolster (2) that are vertical state to sleeve (3) are installed in the upper left end rotation of fixed bolster (2), and wind-up roll (34) are installed in the upper right end of fixed bolster (2);

the slitting knife (15) is used for slitting the metallized film, the slitting knife (15) is fixedly connected to the lower end of the mounting column (16) in an I-shaped structure through bolts, and the mounting column (16) is inserted into the lower end of the movable frame (13);

characterized by further comprising:

the upper conveying roller (6) is arranged in the middle of the supporting frame (4), the upper conveying roller (6) is rotationally connected to the lower end of the mounting frame (7), the upper conveying roller (6) moves up and down in the supporting frame (4) through the mounting frame (7), and the upper conveying roller (6) is combined with the lower conveying roller (5) to clamp and limit the cut metallized film;

the adjusting mechanism (18) is used for limiting the space between the mounting column (16) and the movable frame (13), and the adjusting mechanism (18) is symmetrically arranged at the front end and the rear end of the mounting column (16);

the adjusting mechanism (18) comprises an adjusting rod (19) in a horizontal state, a second spring (20) sleeved on the outer surface of the adjusting rod (19), a limiting block (21) fixedly connected to the movable end of the second spring (20) and in a U-shaped structure, a movable sleeve (22) for connection and a fixed bolt (23) with a limiting function;

the dust collection box (26) is connected to the middle of the upper end of the base (1) in a penetrating mode, a dustproof filter screen (27) is arranged at the bottom of the dust collection box (26), dust is collected and transported by the dust collection box (26) through the air suction device (24) and the air hood (25), and the dustproof filter screen (27) forms a dismounting structure in the dust collection box (26) through the limiting mechanism (29);

meanwhile, the dustproof filter screen (27) is fixedly connected to the middle part of the fixing plate (28);

the middle part of the base (1) is fixedly connected with an auxiliary frame (11), the upper end of the auxiliary frame (11) is provided with an electric telescopic rod (12) for driving, the output end of the electric telescopic rod (12) is fixedly connected with a movable frame (13) in a frame-shaped structure, and the edge of the upper end of the movable frame (13) is fixedly connected with a fixed rod (14) in a vertical state;

the movable frame (13) drives the fixed rod (14) to slide with the upper end of the auxiliary frame (11), the lower end of the movable frame (13) is fixedly connected with the adjusting rod (19), and the adjusting rod (19) is in sliding connection with the limiting block (21);

the limiting block (21) is connected with the mounting frame (17) in a clamping manner;

the mounting frames (17) are respectively and fixedly connected to the upper end and the lower end of the mounting columns (16), the mounting columns (16) are arranged at equal intervals at the lower end of the movable frame (13), and the mounting columns (16) drive the dividing knife (15) to form a lifting structure at the lower end of the movable frame (13);

the limiting block (21) is fixedly connected with the movable sleeve (22), the movable sleeve (22) is sleeved on the outer surface of the adjusting rod (19), the movable sleeve (22) and the adjusting rod (19) are limited by the fixing bolt (23), and the fixing bolt (23) is in threaded connection with the adjusting rod (19) and the fixing bolt (23) and the movable sleeve (22);

the lower end of the dust collection box (26) is attached to the fan housing (25), the fan housing (25) is connected with air suction ends of air suction devices (24) arranged on the left side and the right side of the inside of the base (1) through corrugated pipes, handles are fixedly connected on the left side and the right side of the upper end of the dust collection box (26), and limiting mechanisms (29) are arranged on the left side and the right side of the bottom of the dust collection box (26);

the limiting mechanism (29) comprises an auxiliary plate (30) hinged at the lower end of the dust box (26), a torsion spring (31) arranged between the auxiliary plate (30) and the dust box (26), connecting columns (32) fixedly connected at the left side and the right side of the upper end of the fixed plate (28) and provided with threads on the outer surface, and a connecting sleeve (33) for fixing and limiting;

the auxiliary plate (30) forms a turnover structure at the lower end of the dust box (26), the auxiliary plate (30) is connected with the connecting column (32) in a clamping groove mode, the connecting column (32) is connected with the connecting sleeve (33) in a threaded mode, and the connecting sleeve (33) is attached to the upper surface of the auxiliary plate (30);

the auxiliary plate (30) is used for compressing and limiting the fixed plate (28).

2. The adjustable film slitting device with dust collection function for film capacitor production as set forth in claim 1, wherein: the middle part of support frame (4) rotates and is connected with lower conveying roller (5), and lower conveying roller (5) set up in the below of last conveying roller (6) to go up and carry out spacingly through fixed block (10) between conveying roller (6) and support frame (4), fixed block (10) and movable column (8) between fixed connection moreover.

3. The adjustable film slitting device for film capacitor production with dust collection function as set forth in claim 2, wherein: the movable column (8) is slidably connected to the front end and the rear end of the mounting frame (7), the mounting frame (7) is connected with the supporting frame (4) through a clamping groove, a first spring (9) is arranged between the movable column (8) and the mounting frame (7), and the movable column (8) drives the fixing block (10) to be connected with the corresponding position on the inner side of the supporting frame (4) in a clamping mode.