CN217507109U

CN217507109U - Coating device for producing metallized film of capacitor

Info

Publication number: CN217507109U
Application number: CN202122958142.7U
Authority: CN
Inventors: 胡忠胜; 华玲萍; 毛彬彬; 谢成; 余淼
Original assignee: Anhui Feida Electrical Technology Co ltd
Current assignee: Anhui Feida Electrical Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-09-27
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a film coating device for producing capacitor metallized films, which comprises a film coating chamber, wherein an evaporation generating device is arranged in the film coating chamber, a film material roller, a winding roller, a film coating guide roller and a plurality of guide rollers are rotatably arranged in the film coating chamber, a film coiled material is sleeved on the film material roller, and the film bypasses the film coating guide roller and the plurality of guide rollers and is connected with the winding roller; the film coating machine is characterized in that a driving chamber is arranged on one side of the film coating chamber, a first motor and a second motor are installed in the driving chamber, an output shaft of the first motor is connected with one end, located in the driving chamber, of the film material roller through a clutch, an output shaft of the second motor is connected with one end, located in the driving chamber, of the winding roller through a clutch, and the film material roller, the winding roller, the film coating guide roller and the guide rollers are connected through transmission of a transmission belt coiled material. The film coating device can replace the film through the transmission belt to play the roles of transmission and tension bearing, so that the film can not deform under tension, and the film coating effect of the film can be improved.

Description

Coating device for producing capacitor metallized film

Technical Field

The utility model relates to a condenser film production technical field especially relates to a coating film device of condenser metallized film production usefulness.

Background

The metallized film capacitor is made by vacuum vapor plating a thin metal layer on a plastic film as an electrode. Thus, the thickness of the electrode foil can be omitted, and the volume of the capacitor per unit capacity can be reduced, so that the thin film capacitor can be easily made into a small-sized capacitor with large capacity.

Examples of the film used for the metallized film capacitor include polyethylene, polypropylene, and polycarbonate. The capacitor of this type of metallized film has a so-called self-healing effect, that is, if a short circuit is caused by a weak electrical interface in a small part of the electrode, the electrode metal around the short circuit part will be melted and evaporated in a larger area due to the electrostatic energy or short circuit current carried by the capacitor at that time to recover the insulation, so that the capacitor recovers the capacitor again.

When a film of a metallized film capacitor is evaporated in the prior art, a film coiled material needs to be conveyed through a winding roller, the film is evaporated in a continuous conveying process, the film needs to be straightened in the process, but the tension of the film cannot be controlled by the existing equipment, so that the film is very easy to stretch and deform in the winding process, and the coating is easy to damage due to cooling or elastic shrinkage of the film after coating, thereby affecting the quality of the capacitor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the background technology, the utility model provides a coating device for producing metallized films of capacitors.

The utility model provides a coating device for producing capacitor metallized film, which comprises a coating chamber, a driving chamber and an evaporation generating device; the film coating chamber is internally and rotatably provided with a film material roller, a winding roller, a film coating guide roller and a plurality of guide rollers, the film material roller is sleeved with a film coiled material, and the film bypasses the film coating guide roller and the plurality of guide rollers and is connected with the winding roller;

the driving chamber is arranged on one side of the coating chamber, one ends of the film material roller, the winding roller, the coating guide roller and the guide rollers penetrate into the driving chamber from one side of the coating chamber, the parts of the film material roller, the winding roller, the coating guide roller and the guide rollers, which are positioned in the driving chamber, are in transmission connection through the transmission belt coiled material, the diameter and the number of winding turns of the film coiled material on the film material roller are the same as those of the transmission belt coiled material, and the diameter and the number of winding turns of the film coiled material on the winding roller are the same as those of the transmission belt coiled material; a first motor and a second motor are arranged in the driving chamber, an output shaft of the first motor is connected with one end of the film material roller, which is positioned in the driving chamber, through a clutch, and an output shaft of the second motor is connected with one end of the winding roller, which is positioned in the driving chamber, through a clutch;

in the coating film room was located to coating by vaporization generating device, coating by vaporization generating device included evaporating plate, heater and consumptive material feeding system, evaporating plate and heater connection, and consumptive material feeding system was used for injecting the coating film consumptive material to the evaporating plate, was equipped with the coating by vaporization mouth directly over coating by vaporization generating device's evaporating plate to the coating by vaporization mouth is located under the coating film deflector roll.

Preferably, the coating chamber is communicated with a vacuum-pumping system through a pumping pipeline.

Preferably, the clutch is an electromagnetic clutch.

Preferably, a feeding port is formed in one side wall of the coating chamber, a cabin door is installed at the feeding port in a matched mode, a first shaft seat and a second shaft seat are arranged on the inner side of the cabin door, when the cabin door is closed, the first shaft seat can be matched with one end of the film material roller, the second shaft seat can be matched with one end of the winding roller, and when the cabin door is opened, the first shaft seat is separated from the film material roller and the second shaft seat is separated from the winding roller.

Preferably, a guide rail is fixedly mounted on the inner side of the feeding port, the guide rail is axially parallel to the film material roller, a sliding block is slidably mounted on the guide rail, a hinged support is fixed on one edge of the inner side of the cabin door, the cabin door is hinged to the sliding block through the hinged support, and a door lock is mounted on the cabin door.

Preferably, the hatch door is also provided with a viewing window.

Preferably, the evaporation generating device further comprises a blocking cover, the blocking cover is slidably mounted at the evaporation opening, the blocking cover is connected with a pneumatic push rod, and the pneumatic push rod is used for driving the blocking cover to selectively close or open the evaporation opening.

Has the beneficial effects that:

the utility model discloses in, this coating device passes through film material roller, winding roll, coating film deflector roll and guide roll and carries the film, and the film carries out the coating by vaporization through coating by vaporization generating device, connects through the transmission of drive belt coiled material between on film material roller, winding roll, coating film deflector roll and the guide roll, and the drive belt is the same with the coiling mode of film. During operation, the diameter and the number of winding turns of the film coiled material are the same as those of the transmission belt coiled material, so that the winding speed of the film is the same as that of the transmission belt, at the moment, the film is straightened but not tensioned, the film can be replaced by the transmission belt to play the roles of transmission and tension bearing, the film cannot be tensioned and deformed, and the film coating effect of the film can be improved.

Drawings

FIG. 1 is a front view in cross section of a plating apparatus for producing a metallized film for capacitors proposed in the examples;

FIG. 2 is a side view cross-sectional view of a coating chamber;

FIG. 3 is a side view cross-sectional view of the drive chamber;

fig. 4 is a schematic view of the installation of the cabin door at the feeding port of the coating chamber.

Detailed Description

Referring to fig. 1-4, a coating apparatus for producing a metalized film of a capacitor according to an embodiment of the present invention includes a coating chamber 1, a driving chamber 2 and an evaporation generator 3. Film material roller 4, winding up roller 5, coating film deflector roll 6 and a plurality of guide roll 7 are installed to the rotation in coating film chamber 1, and the cover is equipped with 8 coiled materials of film on the film material roller 4, and film 8 is walked around coating film deflector roll 6 and a plurality of guide roll 7 and is connected with winding up roller 5. Specifically, the film 8 can refer to, but is not limited to, the winding mode in fig. 2, in this example, the number of the guide rollers 7 is two, the film material roller 4 is located below the winding roller 5, and the film 8 on the film material roller 4 bypasses the bottom of the coating guide roller 6 and is connected with the winding roller 5 upwards.

In coating film room 1 was located to coating by vaporization generating device 3, coating by vaporization generating device 3 included evaporating plate 301, heater 302 and consumptive material feeding system 303, and evaporating plate 301 is connected with heater 302, and consumptive material feeding system 303 is used for injecting the coating by vaporization consumptive material to evaporating plate 301, is equipped with coating by vaporization mouth 304 directly over evaporating plate 301 of coating by vaporization generating device 3 to coating by vaporization mouth 304 is located under coating by vaporization deflector roll 6.

When the device works, a film 8 passes through the bottom of the film coating guide roller 6, namely above the evaporation coating port 304, the film coating consumables on the evaporation plate 301 are heated by the heater 302 and then evaporated, and the film 8 is coated on the surface of the film, and when the film 8 is completely wound on the winding roller 5, one-time film coating processing is completed.

A driving chamber 2 of the film coating device is arranged on one side of a film coating chamber 1, one ends of a film material roller 4, a winding roller 5, a film coating guide roller 6 and a plurality of guide rollers 7 penetrate into the driving chamber 2 from one side of the film coating chamber 1, and the parts, located in the driving chamber 2, of the film material roller 4, the winding roller 5, the film coating guide roller 6 and the guide rollers 7 are in coiled material transmission connection through a transmission belt 9. The driving chamber 2 is internally provided with a first motor 10 and a second motor 11, an output shaft of the first motor 10 is connected with one end of the film material roller 4 in the driving chamber 2 through a clutch 12, an output shaft of the second motor 11 is connected with one end of the winding roller 5 in the driving chamber 2 through the clutch 12, and the clutch 12 preferably adopts an electromagnetic clutch 12 and can be connected with a controller for automatic control.

According to the coating device of the embodiment, during operation, the diameter and the number of the winding turns of the film 8 coiled material on the film material roller 4 are the same as those of the transmission belt 9 coiled material, the film 8 and the transmission belt 9 are wound in the same manner, and meanwhile, the film 8 is in a straightened state but not tensioned state, and the transmission belt 9 is in a tensioned state. At this moment, the first motor 10 is disconnected from the film material roller 4 through the clutch 12, and the second motor 11 is started to work, the second motor 11 drives the winding roller 5 to rotate the winding transmission belt 9 and the film 8, because the transmission belt 9 is tensioned, the transmission belt 9 can firstly bear transmission tension to drive the film material roller 4 to rotate, and because the winding degree of the film 8 and the transmission belt 9 is the same, the winding speed of the film 8 is always the same as that of the transmission belt 9 in the winding process, therefore, in the whole winding process, when the winding speed of the film 8 is the same as that of the transmission belt 9, the film 8 is straightened but not tensioned, the film 8 can not bear the transmission tension all the time, the transmission tension can be borne by the transmission belt 9, and therefore, the deformation of the film 8 can be prevented, the film plating effect can be improved, and the plating failure can be prevented.

After finishing one coating operation and before the next coating operation, the coating device can disconnect the second motor 11 from the winding roller 5 through the clutch 12, and start the first motor 10 to rewind the transmission belt 9 onto the film material roller 4.

In a further embodiment, in order to prevent air interference in coating, the coating chamber 1 is communicated with a vacuum pumping system through an air pumping pipeline 21, the vacuum pumping system generally comprises a vacuum pump, a roots pump and a connecting valve, and the interior of the coating chamber 1 can be vacuumized through the air pumping pipeline 21. In addition, inert protective gas such as argon can be supplied into the coating chamber 1 through a protective gas supply system.

Referring to fig. 4, in a further embodiment, a loading port 101 is provided on a side wall of the coating chamber 1, a hatch 13 is fittingly installed at the loading port 101, a first shaft seat 14 and a second shaft seat 15 are provided on an inner side of the hatch 13, the first shaft seat 14 is fittingly engaged with one end of the film material roll 4 and the second shaft seat 15 is fittingly engaged with one end of the winding roll 5 when the hatch 13 is closed, and the first shaft seat 14 is separated from the film material roll 4 and the second shaft seat 15 is separated from the winding roll 5 when the hatch 13 is opened.

According to the hatch door 13 of the embodiment, when the hatch door 13 is opened, the film 8 coiled material can be conveniently installed on the film material roller 4 and the winding roller 5, so that the feeding and discharging of the film 8 coiled material are facilitated.

The specific installation of the hatch 13 is as follows: a guide rail 16 is fixedly installed on the inner side of the feeding port 101, the guide rail 16 is axially parallel to the film material roller 4, a sliding block 17 is installed on the guide rail 16 in a sliding mode, a hinged support 18 is fixed on one edge of the inner side of the cabin door 13, the cabin door 13 is hinged to the sliding block 17 through the hinged support 18, and a door lock 19 is installed on the cabin door 13.

With the hatch door 13 installed in the above manner, when the hatch door 13 is opened, the door lock 19 needs to be opened first, the hatch door 13 is pulled outwards, the sliding block 17 slides outwards along the guide rail 16 in the process, after the sliding block slides for a certain distance, the first shaft seat 14 is separated from the film material roller 4, the second shaft seat 15 is separated from the winding roller 5, and at this time, the hinged support 18 also moves to the outer side of the feeding hole 101, and the hatch door 13 can be rotated outwards again, so that the hatch door 13 is completely opened. When the hatch 13 is closed, the hinged support 18 is located inside the feeding port 101, and the hatch 13 is tightly matched with the feeding port 101. The hatch door 13 installed by the method can facilitate loading and unloading, prevent the axle center deviation of the film material roller 4 and the winding roller 5 and ensure the installation precision.

In some embodiments, the door 13 is further provided with an observation window 20, and the observation window 20 is convenient for observing the working condition in the coating chamber 1.

In a further embodiment, the evaporation coating generation device 3 further includes a blocking cover 305, the blocking cover 305 is slidably mounted at the evaporation coating port 304, the blocking cover 305 is connected with a pneumatic push rod 306, the pneumatic push rod 306 is fixed on the outer housing of the evaporation coating generation device 3, and the pneumatic push rod 306 is used for driving the blocking cover 305 to selectively close or open the evaporation coating port 304. When the evaporation work is carried out, the blocking cover 305 can be controlled by the pneumatic push rod 306 to open the evaporation opening 304, and after the evaporation work is finished, the evaporation opening 304 can be closed, so that the evaporation can be stopped immediately, the effect of protecting the film 8 can be achieved, and the uneven thickness of the coating can be prevented.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A coating device for producing a metallized film of a capacitor is characterized by comprising a coating chamber (1), a driving chamber (2) and an evaporation generating device (3); a film material roller (4), a winding roller (5), a film coating guide roller (6) and a plurality of guide rollers (7) are rotatably arranged in the film coating chamber (1), a film (8) coiled material is sleeved on the film material roller (4), and the film (8) bypasses the film coating guide roller (6) and the guide rollers (7) and is connected with the winding roller (5);

the driving chamber (2) is arranged on one side of the coating chamber (1), one ends of the film material roller (4), the winding roller (5), the coating guide roller (6) and the guide rollers (7) penetrate into the driving chamber (2) from one side of the coating chamber (1), the parts, located in the driving chamber (2), of the film material roller (4), the winding roller (5), the coating guide roller (6) and the guide rollers (7) are in transmission connection with the coiled material of the driving belt (9), the diameter and the number of winding turns of the coiled material of the film (8) on the film material roller (4) are identical to those of the coiled material of the driving belt (9), and the diameter and the number of winding turns of the coiled material of the film (8) on the winding roller (5) are identical to those of the coiled material of the driving belt (9); a first motor (10) and a second motor (11) are installed in the driving chamber (2), an output shaft of the first motor (10) is connected with one end, located in the driving chamber (2), of the film material roller (4) through a clutch (12), and an output shaft of the second motor (11) is connected with one end, located in the driving chamber (2), of the winding roller (5) through the clutch (12);

in coating film room (1) was located in coating film generating device (3), coating film generating device (3) were including evaporating plate (301), heater (302) and consumptive material charging system (303), evaporating plate (301) are connected with heater (302), consumptive material charging system (303) are used for injecting the coating film consumptive material to evaporating plate (301), be equipped with directly over evaporating plate (301) of coating film generating device (3) coating film mouth (304), and coating film deflector roll (6) are located directly under in coating film mouth (304).

2. The coating device for producing a metallized film for capacitors as claimed in claim 1, characterized in that the coating chamber (1) is connected to a vacuum system via a suction line (21).

3. The plating apparatus for producing a metallized film for capacitors according to claim 1, characterized in that said clutch (12) is an electromagnetic clutch (12).

4. The coating device for producing the metallized film of the capacitor according to claim 1, characterized in that a feeding port (101) is provided on one side wall of the coating chamber (1), a hatch door (13) is fittingly installed at the feeding port (101), a first shaft seat (14) and a second shaft seat (15) are provided inside the hatch door (13), when the hatch door (13) is closed, the first shaft seat (14) can be fitted with one end of the film roll (4) and the second shaft seat (15) can be fitted with one end of the winding roll (5), when the hatch door (13) is opened, the first shaft seat (14) is separated from the film roll (4) and the second shaft seat (15) is separated from the winding roll (5).

5. The film coating device for producing the capacitor metallized film according to claim 4, characterized in that a guide rail (16) is fixedly installed on the inner side of the feeding port (101), the guide rail (16) is axially parallel to the film roll (4), a sliding block (17) is slidably installed on the guide rail (16), a hinged support (18) is fixed on one edge of the inner side of the cabin door (13), the cabin door (13) is hinged with the sliding block (17) through the hinged support (18), and a door lock (19) is installed on the cabin door (13).

6. The coating device for producing metallized film of capacitor according to claim 4, characterized in that the hatch (13) is further provided with an observation window (20).

7. The coating device for producing the metallized film of the capacitor according to claim 1, wherein the evaporation generating device (3) further comprises a blocking cover (305), the blocking cover (305) is slidably installed at the evaporation port (304), the blocking cover (305) is connected with a pneumatic push rod (306), and the pneumatic push rod (306) is used for driving the blocking cover (305) to selectively close or open the evaporation port (304).