Capacitor film coating machine

Abstract

The invention relates to the technical field of film plating machines, and discloses a capacitor film plating machine which comprises a film plating box and further comprises a target material, the target material is installed in the film plating box, and an ion source installed on the inner wall of the film plating box is arranged above the target material; the winding assembly is arranged in the coating box, and the winding assembly is used for winding the capacitor film; and the speed change assembly is arranged on the outer side of the coating box and used for adjusting the speed of the winding assembly for winding the thin film. The speed of the winding roller can be automatically adjusted according to the thickness of the capacitor thin film on the winding roller, it is guaranteed that the winding speed of the capacitor thin film is consistent all the time, the thickness of a coating film on the capacitor thin film can be monitored in real time, large-batch coating defective products are prevented from occurring during coating of the capacitor thin film, and the production efficiency of the capacitor thin film is improved. And the use effect of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coating machines, and in particular to a capacitor thin film coating machine. Background Art

[0002] Capacitor metallized film is an important capacitor material, commonly used in the manufacture of film capacitors. It is formed by uniformly coating a layer of metal film on non-conductive substrates such as polyester film and polypropylene film. The metallized film has good electrical and mechanical properties and can effectively improve the performance of the capacitor. When coating the coil, a vacuum coating machine is required. The main idea of ​​the vacuum coating machine is divided into two methods: evaporation and sputtering. Sputtering is to introduce argon gas at a certain pressure under vacuum conditions. The argon gas is ionized into argon ions under the action of a high voltage (300-800V) electric field. The argon ions are accelerated to bombard the target material, thereby sputtering the target material onto the workpiece surface to form a thin film.

[0003] Although the current capacitor film coating machine can coat capacitor films, it does not have the function of automatically adjusting the winding speed according to the thickness of the capacitor film when coating the capacitor film, causing the tension on the capacitor film to change during winding, reducing the coating effect of the capacitor film, and it also does not have the function of monitoring the thickness of the coating on the capacitor film during winding, which will cause a large number of defective capacitor films to appear during coating, reducing the use effect. Therefore, there is an urgent need to design a capacitor film coating machine. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a capacitor thin film coating machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A capacitor thin film coating machine includes a coating box, one side of which is open and hinged with a box door, and the top of the coating box is connected to an air pump and an inert gas pipe, and further includes: Target material, the target material is installed inside the coating box, and an ion source installed on the inner wall of the coating box is arranged above the target material; The winding assembly is arranged inside the coating box and is used to wind the capacitor film; The speed change assembly is arranged outside the coating box, and the speed change assembly is used to adjust the speed of the winding assembly to rewind the film; The detection component is arranged on both sides of the coating box. The detection component is also connected to the speed change component. The detection component has two functions. One is to adjust the winding speed according to the winding thickness, and the other is to judge whether the coating thickness of the capacitor film is uniform according to the winding thickness.

[0006] As a further technical solution of the present invention, the winding assembly includes: two round rollers, which are symmetrically installed inside the coating box, and the two round rollers are respectively installed with a winding roller and an unwinding roller. Two symmetrically arranged limiting rollers are also rotatably installed inside the coating box, and the capacitor film on the unwinding roller is wound around the two limiting rollers and then installed on the winding roller.

[0007] As a further technical solution of the present invention, the speed change assembly includes: a first conical column and a second conical column, the first conical column and the second conical column are both rotatably installed on the outside of the coating box, and a movable belt is sleeved on the surface of the first conical column and the second conical column, the end face of the second conical column is fixedly installed at the center of the end face of the circular roller corresponding to the winding roller through a connecting shaft, and a driving motor connected to the first conical column is installed on the outside of the coating box.

[0008] As a further technical solution of the present invention, a connecting plate is horizontally arranged on the outside of the coating box, and two through slots are opened on the connecting plate. The two vertical sides of the belt pass through the two through slots respectively. A limiting plate arranged perpendicular to the connecting plate is fixedly installed horizontally on the outside of the coating box, and the connecting plate is slidably sleeved on the surface of the limiting plate.

[0009] As a further technical solution of the present invention, the detection component includes: a protective shell, which is fixedly installed on the outside of the coating box, and an alarm is installed on the top of the protective shell. The alarm can have its own power supply, and a connecting plate is longitudinally arranged inside the protective shell, and a rack is horizontally fixedly installed on the side of the connecting plate.

[0010] As a further technical solution of the present invention, a transverse groove is opened on one side of the protective shell, and a movable plate is rotatably installed on the top of the connecting plate. The top of the movable plate passes through the transverse groove, and the top of the movable plate is rotatably installed on the top of the connecting plate.

[0011] As a further technical solution of the present invention, a U-shaped frame is provided inside the coating box, and a detection roller is rotatably installed between the two short sides of the U-shaped frame. Two symmetrically arranged first spring rods are horizontally installed on the side of the long side of the U-shaped frame, and the fixed ends of the two first spring rods are fixedly installed on the inside of the coating box. Two symmetrically arranged connecting columns are also fixed on the long side of the U-shaped frame, and the top ends of the two connecting columns pass through the side of the coating box and are fixedly installed on the side of the connecting plate.

[0012] As a further technical solution of the present invention, a horizontal plate is horizontally arranged inside the protective shell and is fixedly installed on the outside of the coating box, and a large gear and a small gear are rotatably installed on the side of the horizontal plate to engage with each other. The horizontal plate is used to limit the large gear and the small gear, and the large gear and the rack are engaged.

[0013] As a further technical solution of the present invention, a non-contact groove plate is provided on the end face of the pinion, and an L-shaped plate installed on the side of the horizontal plate is fixed on the surface of the groove plate, an annular copper sheet is fixedly installed on the inner wall of the groove of the groove plate, a notch ring is fixed on the inner side of the groove of the groove plate, a first arc-shaped copper sheet is fixedly installed on the surface of the notch ring, and hinge plates are hinged at both ends of the notch ring through double-sided elastic hinges, and a second arc-shaped copper sheet is installed on the outside of each hinge plate, and the annular copper sheet, the first arc-shaped copper sheet and the second arc-shaped copper sheet are all electrically connected to the alarm.

[0014] As a further technical solution of the present invention, a second spring rod is fixedly installed on the end face of the pinion, the fixed end and the telescopic end of the second spring rod are slidingly connected by a spline, the telescopic end of the second spring rod is fixed with a copper plate, and the copper plate is electrically connected to the alarm.

[0015] The beneficial effects of the present invention are: The present invention, through the arrangement of a winding assembly, a speed changing assembly and a detection assembly, can not only automatically adjust the speed of the winding roller according to the thickness of the capacitor film on the winding roller, thereby ensuring that the winding rate of the capacitor film is always consistent, but can also monitor the thickness of the coating on the capacitor film in real time, thereby avoiding the occurrence of a large number of defective coating products when the capacitor film is coated, thereby improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a capacitor thin film coating machine proposed by the present invention; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 This is a cross-sectional view of the protective shell of a capacitor thin film coating machine proposed by the present invention and a schematic diagram of the structure after the box door is removed; Figure 4 This is a schematic diagram of the internal structure of a coating box of a capacitor thin film coating machine proposed by the present invention; Figure 5 This is a schematic diagram of the structure of a capacitor thin film coating machine proposed by the present invention with the protective shell removed; Figure 6 for Figure 5 An enlarged schematic diagram of part B; Figure 7 A schematic diagram of a movable rod and a connecting plate and their connection structure of a capacitor thin film coating machine proposed by the present invention; Figure 8 This is a schematic structural diagram of a capacitor thin film coating machine proposed by the present invention after the pinion gear and the second spring rod are separated; Figure 9 for Figure 8 A magnified schematic diagram of part C; Figure 10This is a schematic diagram of a notch ring and its connection structure of a capacitor thin film coating machine proposed by the present invention.

[0017] In the figure: 1. Coating box; 2. Vacuum pump; 3. Inert gas pipe; 4. Protective shell; 5. Alarm; 6. Movable plate; 7. Connecting plate; 8. Drive motor; 9. First conical column; 10. Second conical column; 11. Belt; 12. Horizontal plate; 13. Limiting plate; 14. Round roller; 15. Limiting roller; 16. U-shaped frame; 17. First spring rod; 18. Connecting column; 19. Detection roller; 20. Connecting plate; 21. Rack; 22. Large gear; 23. Small gear; 24. Grooved plate; 25. Annular copper sheet; 26. Second spring rod; 27. Copper sheet; 28. Notched ring; 29. ​​First arc-shaped copper sheet; 30. Hinge plate; 31. Second arc-shaped copper sheet; 32. Target; 33. Ion source. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Please see the attached Figure 1 -Attached Figure 10 , a capacitor thin film coating machine, including a coating box 1, one side of the coating box 1 is open and hinged with a box door, and the top of the coating box 1 is also connected and installed with an exhaust pump 2 and an inert gas pipe 3, and also includes: a target material 32, a winding assembly, a speed change assembly and a detection assembly, the target material 32 is installed inside the coating box 1, and an ion source 33 installed on the inner wall of the coating box 1 is provided above the target material 32, the winding assembly is arranged inside the coating box 1, and the winding assembly is used to wind the capacitor film, the speed change assembly is arranged outside the coating box 1, and the speed change assembly is used to adjust the speed of the winding assembly winding the film, the detection assembly is arranged on both sides of the coating box 1, the detection assembly is also connected to the speed change assembly, and the detection assembly has two functions, one is to adjust the winding speed according to the winding thickness, and the other is to judge whether the coating thickness of the capacitor film is uniform according to the winding thickness; It can not only automatically adjust the speed of the winding roller according to the thickness of the capacitor film on the winding roller, ensuring that the winding rate of the capacitor film is always consistent, but also monitor the thickness of the coating on the capacitor film in real time, avoiding the occurrence of large quantities of defective coating products when the capacitor film is coated.

[0021] Please see the attached Figure 1 -Attached Figure 6 In a preferred embodiment, the winding assembly includes: a round roller 14, two round rollers 14, the two round rollers 14 are symmetrically mounted inside the coating box 1, and a winding roller and an unwinding roller are mounted on the two round rollers 14 respectively. Two symmetrically arranged limiting rollers 15 are also rotatably mounted inside the coating box 1, and the capacitor film on the unwinding roller is wound around the two limiting rollers 15 and then mounted on the winding roller; When it is necessary to coat the capacitor film, first place the unwinding roller and the unwinding roller on the corresponding round roller 14, then pass the capacitor film on the unwinding roller through the two limiting rollers 15 and connect it to the winding roller, then evacuate the inside of the coating box 11 through the vacuum pump, and then fill the inside of the coating box 1 through the inert gas pipe 3, and then generate glow discharge through the ion source 33, and the ions generated by the ion source 33 bombarding the target material 32 can coat the capacitor film.

[0022] Please see the attached Figure 2 -Attached Figure 10 In a preferred embodiment, the speed change assembly includes: a first conical column 9 and a second conical column 10, the first conical column 9 and the second conical column 10 are both rotatably mounted on the outside of the coating box 1, and a movable belt 11 is sleeved on the surface of the first conical column 9 and the second conical column 10, the end face of the second conical column 10 is fixedly mounted on the center of the end face of the round roller 14 corresponding to the winding roller through a connecting shaft, and a driving motor 8 connected to the first conical column 9 is installed on the outside of the coating box 1, a connecting plate 7 is horizontally arranged on the outside of the coating box 1, two through slots are provided on the connecting plate 7, and the two vertical sides of the belt 11 pass through the two through slots respectively, a limit plate 13 arranged perpendicular to the connecting plate 7 is fixedly mounted on the outside of the coating box 1, and the connecting plate 7 is slidably sleeved on the surface of the limit plate 13; The synchronous start-up drive motor 8 drives the first conical column 9 to rotate, and the rotation of the first conical column 9 drives the belt 11 to rotate. The rotation of the belt 11 drives the second conical column 10 to rotate. The rotation of the second conical column 10 drives the round roller 14 on which the winding roller is located to rotate. The rotation of the round roller 14 drives the winding roller on it to rotate. The rotation of the winding roller can rewind the plated capacitor film.

[0023] Please see the attached Figure 1 -Attached Figure 10In a preferred embodiment, the detection component includes: a protective shell 4, the protective shell 4 is fixedly mounted on the outside of the coating box 1, and an alarm 5 is installed on the top of the protective shell 4, the alarm 5 can have its own power supply, a connecting plate 20 is longitudinally arranged inside the protective shell 4, and a rack 21 is fixedly mounted on the side of the connecting plate 20 horizontally, a transverse groove is opened on one side of the protective shell 4, a movable plate 6 is rotatably mounted on the top of the connecting plate 20, the top of the movable plate 6 passes through the transverse groove, and the top of the movable plate 6 is rotatably mounted on the top of the connecting plate 7, a U-shaped frame 16 is provided inside the coating box 1, and a detection roller 19 is rotatably mounted between the two short sides of the U-shaped frame 16, two symmetrically arranged first spring rods 17 are horizontally mounted on the side of the long side of the U-shaped frame 16, and the fixed ends of the two first spring rods 17 are fixedly mounted on the inner side of the coating box 1, and two symmetrically arranged connecting columns 18 are also fixed on the long side of the U-shaped frame 16, and the tops of the two connecting columns 18 pass through the side of the coating box 1 and are fixedly mounted on the side of the connecting plate 20, and a fixed plate 6 is fixedly mounted on the coating box 1. The outer side of the box 1 is provided with a horizontal plate 12, and the side of the horizontal plate 12 is rotatably mounted with a large gear 22 and a small gear 23 that are meshed. The horizontal plate 12 is used to limit the large gear 22 and the small gear 23. The large gear 22 is meshed with the rack 21. The end face of the small gear 23 is provided with a non-contact groove plate 24, and the groove plate 24 is fixed with an L-shaped plate mounted on the side of the horizontal plate 12 through the surface. The inner wall of the groove of the groove plate 24 is fixed with an annular copper sheet 25. The inner side of the groove of the groove plate 24 is fixed with a notch ring 28. The surface of the notch ring 28 is fixed with a A first arc-shaped copper sheet 29 is provided, and hinge plates 30 are hinged at both ends of the notched ring 28 via double-sided elastic hinges. A second arc-shaped copper sheet 31 is installed on the outside of each hinge plate 30. The annular copper sheet 25, the first arc-shaped copper sheet 29, and the second arc-shaped copper sheet 31 are all electrically connected to the alarm 5. A second spring rod 26 is fixedly installed on the end surface of the pinion 23. The fixed end and the telescopic end of the second spring rod 26 are slidably connected via a spline. A copper plate 27 is fixed to the telescopic end of the second spring rod 26, and the copper plate 27 is electrically connected to the alarm 5. As the winding roller rotates, the thickness of the capacitor film wound on it will gradually increase. The capacitor film coated on the winding roller will exert a force on the detection roller 19, causing the detection roller 19 to move away from the winding roller. The movement of the detection roller 19 drives the connecting column 18 to move and causes the first spring rod 17 to generate elastic force. The movement of the connecting column 18 drives the connecting plate 20 to move. The movement of the connecting plate 20 drives the rack 21 and the movable plate 6 to move. The movement of the movable plate 6 drives the connecting plate 7 to move toward the coating box 1, and the movement of the connecting plate 7 drives the belt 11 to move. Due to the arrangement of the first conical column 9 and the second conical column 10, the belt 11 will change the speed of the second conical column 10 during the movement, and the thicker the capacitor film wound on the winding roller, the slower the speed of the winding roller. This ensures that the speed of the winding roller can be automatically adjusted according to the thickness of the capacitor film on the winding roller, ensuring that the winding rate of the capacitor film is always consistent, and there will be no sudden changes in speed. This improves the consistency of the tension when the capacitor film is wound, and further improves the uniformity and consistency of the capacitor film coating. The movement of the rack 21 drives the large gear 22 to rotate, and the rotation of the large gear 22 drives the small gear 23 to rotate faster, and the small gear 23 accelerates to rotate and drives the second spring rod 26 to rotate, and the rotation of the second spring rod 26 drives the copper plate 27 to rotate. At the beginning of rotation, the copper plate 27 will rotate nearly one circle inside the notched ring 28. Although centrifugal force will be generated in this process, the notched ring 28 will hinder the copper plate 27 from moving away from the center of the notched ring 28. Until the copper plate 27 rotates to the notch position of the notch ring 28, the centrifugal force generated by the copper plate 27 will cause the copper plate 27 to move through its notch in the direction away from the center of the notch ring 28 and pass over the two hinge plates 30. It should be noted that when the copper plate 27 passes over the two hinge plates 30, the hinge plates 30 will reset because the hinge plates 30 are connected by a two-way elastic hinge, and then the copper plate 27 will return to its original position. The plate 27 will be located between the annular copper sheet 25 and the first curved copper sheet 29. At this time, the thickness of the coating on the surface capacitor film is qualified. If the coating thickness on the capacitor film is too thick, the thickness change on the winding roller will suddenly increase, and the speed of the rack 21 will suddenly increase, further causing the rotation speed of the pinion 23 and the second spring rod 26 to suddenly accelerate, and the centrifugal force on the copper plate 27 will increase, and it will continue to move in the direction away from the center of the notched ring 28. When the copper plate 27 contacts the annular copper sheet 25, the alarm 5 will work to remind the staff that the capacitor film coating is abnormal. Conversely, if the coating thickness on the capacitor film is thin, the centrifugal force on the copper plate 27 will become smaller. When the copper plate 27 contacts the first curved copper sheet 29 or the second curved copper sheet 31, the alarm 5 will work to remind the staff that the capacitor film coating is abnormal or the coating is completed. In summary, the capacitor film can be coated, and when coating the capacitor film, not only can the speed of the winding roller be automatically adjusted according to the thickness of the capacitor film on the winding roller, thereby ensuring that the winding rate of the capacitor film is always consistent, but the thickness of the coating on the capacitor film can also be monitored in real time, thereby avoiding the occurrence of large quantities of defective coating products when coating the capacitor film, thereby improving the use effect of the equipment.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A capacitor thin film coating machine, comprising a coating box (1), characterized in that: Also includes: A target material (32), the target material (32) being installed inside the coating box (1), and an ion source (33) being installed on the inner wall of the coating box (1) being provided above the target material (32); A winding assembly, the winding assembly being arranged inside the coating box (1) and being used for winding the capacitor film; A speed change assembly, the speed change assembly being arranged outside the coating box (1), and the speed change assembly being used to adjust the speed at which the winding assembly rewinds the film; The detection component is arranged on both sides of the coating box (1) and the detection component is also connected to the speed change component. The detection component has two functions: one is to adjust the winding speed according to the winding thickness; the other is to judge whether the coating thickness of the capacitor film is uniform according to the winding thickness.

2. A capacitor thin film coating machine according to claim 1, characterized in that: The winding assembly comprises: a round roller (14), wherein there are two round rollers (14), and the two round rollers (14) are symmetrically mounted in rotation inside the coating box (1), and a winding roller and an unwinding roller are mounted on the two round rollers (14) respectively. Two symmetrically arranged limiting rollers (15) are also rotatably mounted inside the coating box (1).

3. A capacitor thin film coating machine according to claim 2, characterized in that: The speed change assembly includes: a first conical column (9) and a second conical column (10), the first conical column (9) and the second conical column (10) are both rotatably mounted on the outside of the coating box (1), and a movable belt (11) is sleeved on the surface of the first conical column (9) and the second conical column (10), and the end face of the second conical column (10) is fixedly mounted on the center of the end face of the round roller (14) corresponding to the winding roller through a connecting shaft.

4. A capacitor thin film coating machine according to claim 3, characterized in that: A connecting plate (7) is horizontally arranged on the outside of the coating box (1), and two through slots are provided on the connecting plate (7). The two vertical sides of the belt (11) pass through the two through slots respectively. A limiting plate (13) is fixedly installed horizontally on the outside of the coating box (1) and is arranged perpendicular to the connecting plate (7), and the connecting plate (7) is slidably sleeved on the surface of the limiting plate (13).

5. A capacitor thin film coating machine according to claim 4, characterized in that: The detection component comprises: a protective shell (4), the protective shell (4) is fixedly mounted on the outside of the coating box (1), and an alarm (5) is mounted on the top of the protective shell (4), a connecting plate (20) is longitudinally arranged inside the protective shell (4), and a rack (21) is fixedly mounted horizontally on the side of the connecting plate (20).

6. A capacitor thin film coating machine according to claim 5, characterized in that: A through transverse groove is provided on one side of the protective shell (4); a movable plate (6) is rotatably mounted on the top end of the connecting plate (20); the top end of the movable plate (6) passes through the transverse groove, and the top end of the movable plate (6) is rotatably mounted on the top end of the connecting plate (7).

7. A capacitor thin film coating machine according to claim 6, characterized in that: A U-shaped frame (16) is provided inside the coating box (1), and a detection roller (19) is rotatably installed between the two short sides of the U-shaped frame (16). Two symmetrically arranged first spring rods (17) are horizontally installed on the side of the long side of the U-shaped frame (16), and the fixed ends of the two first spring rods (17) are fixedly installed on the inner side of the coating box (1). Two symmetrically arranged connecting columns (18) are also fixed on the long side of the U-shaped frame (16), and the top ends of the two connecting columns (18) pass through the side of the coating box (1) and are fixedly installed on the side of the connecting plate (20).

8. The capacitor thin film coating machine according to claim 7, characterized in that: A horizontal plate (12) fixedly mounted on the outside of the coating box (1) is horizontally arranged inside the protective shell (4), and a large gear (22) and a small gear (23) are rotatably mounted on the side of the horizontal plate (12) in meshing arrangement, and the large gear (22) and the rack (21) are in meshing engagement.

9. The capacitor thin film coating machine according to claim 8, characterized in that: The end face of the pinion (23) is provided with a non-contact groove plate (24), and the groove plate (24) is fixed with an L-shaped plate installed on the side of the horizontal plate (12) through the surface, and an annular copper sheet (25) is fixedly installed on the inner wall of the groove of the groove plate (24), and a gap ring (28) is fixed on the inner side of the groove of the groove plate (24), and a first arc-shaped copper sheet (29) is fixedly installed on the surface of the gap ring (28), and both ends of the gap ring (28) are hinged with hinge plates (30) through double-sided elastic hinges, and a second arc-shaped copper sheet (31) is installed on the outer side of each hinge plate (30), and the annular copper sheet (25), the first arc-shaped copper sheet (29) and the second arc-shaped copper sheet (31) are all electrically connected to the alarm (5).

10. The capacitor thin film coating machine according to claim 9, characterized in that: A second spring rod (26) is fixedly mounted on the end surface of the pinion (23); the fixed end and the telescopic end of the second spring rod (26) are slidably connected via a spline; a copper plate (27) is fixed to the telescopic end of the second spring rod (26), and the copper plate (27) is electrically connected to the alarm (5).

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