CN115231021B - Film winding machine for thin film capacitor - Google Patents
Film winding machine for thin film capacitor Download PDFInfo
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- CN115231021B CN115231021B CN202210841578.4A CN202210841578A CN115231021B CN 115231021 B CN115231021 B CN 115231021B CN 202210841578 A CN202210841578 A CN 202210841578A CN 115231021 B CN115231021 B CN 115231021B
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- film
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- heating
- protective film
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/16—Feeding webs from rolls by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/26—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for marking or coding completed packages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application discloses film rolling machine for thin film capacitor includes: the film guiding device comprises two first film guiding rollers which are arranged at intervals along the set direction, and the two first film guiding rollers are used for guiding the protective film to move along the set direction; the film rolling device is arranged on the downstream side of the film guide assembly along the set direction; the heating device is arranged between the two first film guide rollers; the laser code spraying device is arranged between the two first film guiding rollers and is positioned on the downstream side of the heating device along the set direction. The utility model provides a film winding machine for film capacitor need not artifical labelling, avoids appearing the wrong problem of pasting and dropping of label, has improved film capacitor's production efficiency, can also be formed with the section of shrinking at the in-process of electric core coiling protection film, and utilizes the section of shrinking to provide accurate stopping dyestripping position for dyestripping personnel, avoids appearing the condition that the wrong number of turns of dyestripping personnel factor leads to tearing the partial protection film that has the label information with the spraying.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a film winding machine for a thin film capacitor.
Background
The film capacitor comprises a battery core, and metal spraying layers are formed at two ends of the battery core through metal spraying treatment. After the preparation of the battery cell is completed, the battery cell is generally required to be wound with a plurality of circles of PP protective films on the periphery of the battery cell through a film winding machine, and paper serial number labels are adhered to the outermost protective films manually. Meanwhile, based on the high-quality production requirement of the capacitor, the outermost circles of protective films on the battery core need to be removed before metal spraying treatment is carried out. Thus, the manual label sticking is needed twice, so that the preparation efficiency of the battery cell is low, and the problems of wrong label sticking and falling exist.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a film winder for thin film capacitors.
The application provides a film winding machine for film capacitor for at film capacitor's electric core periphery coiling has the protection film, include:
the film guiding device comprises two first film guiding rollers which are arranged at intervals along the set direction, and the two first film guiding rollers are used for guiding the protective film to move along the set direction;
the film rolling device is arranged on the downstream side of the film guiding device along the set direction;
the heating device is arranged between the two first film guide rollers and is used for heating the protective film so as to form a shrinking section on the protective film;
the laser code spraying device is arranged between the two first film guiding rollers and is positioned on the downstream side of the heating device along the set direction, and the laser code spraying device is used for forming label information on the surface of the protective film.
Further, still include two buffer memory subassemblies and two clamping components that are located between two first guide rolls, two buffer memory subassemblies and two clamping components are along setting for the orientation interval setting, and two clamping components are located between two buffer memory subassemblies, buffer memory subassembly is used for caching the protection film, clamping components have the clamping state that is used for the centre gripping protection film or release state of release protection film, heating device sets up between two clamping components, laser spouts a yard device and sets up between adjacent film winding device's buffer memory subassembly and first guide roll.
Further, the buffer assembly comprises two second film guiding rollers and a buffer roller, the two second film guiding rollers are arranged at intervals along the set direction, the buffer roller is located between the two second film guiding rollers, and the buffer roller is arranged in a suspending mode.
Further, the clamping assembly includes a first clamping roller and a second clamping roller, the first clamping roller being positioned above the second clamping roller, the first clamping roller being movably disposed relative to the second clamping roller to move the clamping assembly between the clamped condition and the released condition.
Further, the device also comprises a second driving motor and a first driving mechanism, an output shaft of the second driving motor is in transmission connection with the first clamping roller, and the first driving mechanism is in driving connection with an integral structure formed by the first clamping roller and the second driving motor so as to drive the integral structure to move.
Further, the clamping assemblies are all provided with clamping cavities for clamping the protective films, and the heating device comprises heating rollers which are higher than the clamping cavities.
Further, the height of the heating roller is adjustably set.
Further, the device also comprises a second driving mechanism which is used for being in driving connection with the heating roller so as to adjust the height of the heating roller.
The utility model provides a film winding machine for film capacitor, through being equipped with laser in the film guiding device and spouting sign indicating number device and heating device, heating device and laser spout sign indicating number device and set up along setting for the orientation interval, when coiling the protection film to the electric core, laser spouts sign indicating number device earlier to the surface spraying label information of protection film, heating device heats the protection film again so as to be formed with the shrink section on the protection film, utilize laser to spout sign indicating number device automatic spraying label information on the protection film on the one hand, need not artifical labeling, avoid appearing the wrong problem of pasting and dropping of label, the production efficiency of film capacitor has been improved, on the other hand can also be formed with the shrink section at the in-process of electric core coiling protection film, and utilize shrink section to provide accurate stopping the dyestripping position for dyestripping personnel, avoid appearing the circumstances that the wrong number of turns of personnel lead to tearing the part protection film that will spray with label information.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 is a schematic structural diagram of a film winding machine according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a clamping assembly according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
Referring to fig. 1, a film winding machine for a thin film capacitor is used for winding a plurality of circles of protective films 300 around the periphery of a battery cell, and protecting and dustproof functions of the battery cell are realized through the protective films 300. The existing film rolling machine comprises a frame 100, a mounting shaft 200 arranged on the frame 100, a film guiding device and a film rolling device, wherein the mounting shaft 200 is used for mounting a protective film 300 roll, the film guiding device comprises two first film guiding rollers 210 arranged at intervals along a set direction, the two first film guiding rollers 210 are both rotationally connected to the frame 100, the two first film guiding rollers 210 are used for guiding the protective film 300 to move along the set direction, and the film rolling device is arranged on the downstream side of the film guiding device along the set direction so as to roll the protective film 300 passing through the film guiding device around the periphery of an electric core. The mounting shaft 200 is located on the upstream side of the film guide in the set direction. The winding structure comprises a mounting frame and two clamping arms, wherein the mounting frame is mounted on the frame 100, the two clamping arms are arranged on the mounting frame in a rotating mode through a rotating shaft, and the two clamping arms are arranged oppositely to be used for clamping the battery cell. Two first driving motors are arranged on the mounting frame and are respectively connected with the two rotating shafts in a transmission manner so as to drive the two clamping arms to rotate.
The film rolling machine provided by the embodiment of the application is based on the existing film rolling machine, and is additionally provided with a heating device and a laser code spraying device 270. Specifically: the heating device is disposed between the two first film guiding rollers 210 and is used for heating the protective film 300 to form a shrink section on the protective film 300. The laser code spraying device 270 is disposed between the two first film guiding rollers 210 and disposed on the frame 100, and the laser code spraying device 270 is disposed on the downstream side of the heating device along the set direction, and the laser code spraying device 270 is configured to form label information on the surface of the protective film 300 by laser code spraying.
The protective film 300 in the protective film 300 roll may be divided into a plurality of film segments, each for winding around the outer circumference of one cell to wind the protective film 300 in a plurality of turns around the outer circumference of the cell. The surface of each membrane segment has first and second spaced apart set positions. When the film winding machine winds the protective film 300 on the periphery of the battery cell, the film segments sequentially pass through the first film guide roller 210 close to the mounting shaft 200, the heating device, the laser code spraying device 270 and the first film guide roller 210 close to the winding device, and finally are wound on the battery cell clamped by the winding device. By rotating the clamping arm, the film section is wound on the periphery of the battery cell. When the first set position of the protective film 300 passes through the heating device, the heating device heats the first set position to form a shrinking section; when the second set position of the protective film 300 passes through the laser code spraying device 270, the laser code spraying device 270 sprays the code on the second set position to form the label information. When the film tearing personnel tear the film, the film tearing personnel only need to tear the shrink section and tear the shrink section together.
In this embodiment, through configuration protection film 300 marking device, utilize laser to spout sign indicating number device 270 to spray coating label information on protection film 300 automatically, need not the manual labeling, avoid appearing the wrong problem of pasting and dropping of label, improved film capacitor's production efficiency, can also be formed with the shrink section at the in-process of electric core coiling protection film 300 simultaneously, and utilize the shrink section to provide accurate stop dyestripping position for dyestripping personnel, avoid appearing the condition that the personnel factor wrong number leads to tearing off the part protection film 300 that will spray-coat with label information.
It should be understood that, because the battery cell is black, and the label information sprayed by the laser spraying code is black based on the control of the cost, the label information is not easy to find in the film tearing process, and the situation that the label information is torn off due to excessive film tearing easily occurs.
The material of the protective film 300 may be, but not limited to, PP material, and has thermal shrinkage, which may shrink after being heated.
The laser code spraying device 270 is a conventional general device, and is not described herein. The label information includes, but is not limited to, information such as a numeric number and a product lot number. The laser code spraying device 270 may have an automatic counting function to spray corresponding number on the protective film 300 of each cell. The laser code spraying device 270 can spray codes on the protective film 300 in a moving state to improve film rolling efficiency.
The distance between the heating device and the laser spraying device 270 corresponds to the distance between the first setting position and the second setting position, and the distance can be set according to actual requirements. For example, the distance between the heating device and the laser code spraying device 270 is greater than or equal to half of the outer circumference of the battery cell and less than or equal to the outer circumference of the battery cell. By the arrangement, after the protective film 300 positioned on the periphery of the battery cell is torn from the outermost ring to the shrinkage section, the label information is obvious, so that the label information is easy to observe.
In some embodiments of the present application, the film rolling machine further includes two buffer components and two clamping components located between the two first film guiding rollers 210, the two buffer components and the two clamping components are all disposed on the frame 100, the two buffer components and the two clamping components are disposed at intervals along the set direction, the two clamping components are located between the two buffer components, the heating device is disposed between the two clamping components, and the laser code spraying device 270 is disposed between the buffer components adjacent to the film rolling device and the first film guiding rollers 210. Both buffer components are used for buffering the protective film 300, so that the protective film 300 has buffer margins at both buffer components, and both clamping components are used for clamping the protective film 300. The clamping assembly has a clamping state for clamping the protective film 300 or a releasing state for releasing the protective film 300 and is movable between the clamping state and the releasing state. By the arrangement, the first set position on the protective film 300 can be heated by the heating device in a fixed-position state to form the shrinkage section, and the two sides of the first set position can be subjected to larger pulling force when being heated, so that the shrinkage degree of the shrinkage section is relatively light, and the two sides of the first set position can be subjected to deformation blocking by the clamping assembly, so that the deformation influence of the shrinkage section on the protective film 300 is reduced.
In the process of winding the battery cell, the protective film 300 in the protective film 300 roll sequentially passes through the first film guide roller 210 close to the mounting shaft 200, the buffer component close to the mounting shaft 200, the two clamping components, the buffer component close to the film winding device and the first film guide roller 210 close to the film winding device, and finally is wound on the battery cell clamped by the winding device. The protective film 300 is wound around the battery cell by rotating the clamp arm. When the first setting position does not pass through the heating device, the two clamping assemblies do not clamp the protective film 300, and when the first setting position passes through the heating device, the two clamping assemblies clamp the protective film 300.
Wherein the clamping assembly includes a first clamping roller 240 and a second clamping roller 250 both rotatably provided to the frame 100, the first clamping roller 240 being located above the second clamping roller 250, a clamping cavity for clamping the protective film 300 being formed between the first clamping roller 240 and the second clamping roller 250, wherein at least one of the first clamping roller 240 and the second clamping roller 250 is movably provided such that the clamping assembly moves between a clamped state and a released state.
Referring to fig. 2, in some embodiments of the present application, when the first clamping roller 240 is movably disposed relative to the second clamping roller 250, the film rolling device further includes a second driving motor and a first driving mechanism, an output shaft of the second driving motor is connected to the first clamping roller 240, the second driving motor can drive the first clamping roller 240 to rotate positively and negatively, and an integral structure formed by the first driving mechanism, the first clamping roller 240 and the second driving motor is in driving connection to drive the integral structure to move so as to adjust a position state of the clamping assembly. The second clamping roller 250 is rotatably disposed on the frame 100.
The second driving motor may adjust the range of the shrink section in the protective film 300 by forward and reverse rotation.
The first driving mechanism may be a first cylinder 290 or the like. The first nip roller 240 includes a roller body 241 and roller neck portions 242 located on both sides of the roller body 241, one of the roller neck portions 242 being mounted with a first gear. The first clamping roller 240 is provided with a concave-shaped mounting shell 280, and the mounting shell 280 is of a split type structure and comprises two shells which are in threaded connection. The two roll neck portions 242 of the first grip roll 240 are respectively movably passed through the two protruding portions 281 of the mounting case 280. The second driving motor is installed in the installation housing 280, and a second gear is installed on a shaft of the second driving motor, and the first gear is engaged with the second gear. The first cylinder 290 is located above the mounting housing 280 and the drive shaft of the first cylinder 290 is drivingly connected to the top wall of the mounting housing 280.
Wherein the surfaces of the first grip roller 240 and/or the second grip roller 250 are sleeved with an elastic sleeve. The material of the elastic sleeve may be, but not limited to, rubber or the like.
In some embodiments of the present application, the marking device for the protective film 300 includes a timer and a processor, where the timer, the laser code spraying device 270 and the first driving motor are all connected to the processor, the processor can obtain a start signal when the first driving motor starts each time, and the processor controls the timer to start to count time and controls the first cylinder 290 to drive the clamping assembly to switch from the release state to the clamping state after each time the processor receives the start signal. The first preset time is calculated by subtracting the second time from the first time, and specifically: the first time is obtained by dividing the distance between the winding start end and the first set position in the film segment by the winding speed of the winding device, and the second time is the time required by the clamping assembly to be switched from the release state to the clamping state. The processor controls the timer to start timing after receiving the start signal each time and controls the laser code spraying device 270 to spray the code after timing to the second preset time. The second preset time is obtained by dividing the distance between the winding start end and the second set position in the film segment by the winding speed of the winding device. The film winding speed of the winding device is uniform.
In some embodiments of the present application, the first buffer assembly and the second buffer assembly each include two second film guiding rollers 220 and a buffer roller 230, the second film guiding rollers 220 are all rotatably disposed on the frame 100, the second film guiding rollers 220 are disposed at intervals along a set direction, the buffer roller 230 is disposed between two guide rollers, and the buffer roller 230 is suspended. So configured, the buffer roller 230 is supported by the protective film 300 so as to be in a suspended state, and the buffer amount of the protective film 300 at the buffer assembly is determined according to the height of the buffer roller 230.
In some embodiments of the present application, the clamping assembly has a clamping cavity for clamping the protective film 300, and the heating means includes a heating roller 260, the heating roller 260 being higher than the clamping cavity. The arrangement is such that the heating device indirectly heats the protective film 300, avoiding adhesion between the heating roller 260 and the protective film 300.
The height of the gap between the heating roller 260 and the protective film 300 may be reasonably set according to the heating temperature of the heating roller 260, and the heating temperature of the heating roller 260 is generally lower than 100 ℃. For example, the higher the temperature of the heating roller 260, the larger the gap height between the heating roller 260 and the protective film 300, and the lower the temperature of the heating roller 260, the smaller the gap height between the heating roller 260 and the protective film 300.
Wherein, the surface of the heating roller 260 is wound with an electric heating wire to heat the heating roller 260. One end of the heating roller 260 is provided with a heat insulating portion. The heat insulating portion may be made of, but not limited to, rubber or the like.
In some embodiments of the present application, the height of the heating roller 260 is adjustably positioned to move between a heating position and an evasive position, the evasive position being higher than the heating position. When the protective film 300 needs to be heat-treated, the heating roller 260 is located at the heating position, and when the protective film 300 does not need to be heat-treated, the heating roller 260 is located at the avoiding position.
The second driving mechanism is in driving connection with the heating roller 260 to adjust the height of the heating roller 260. The second driving mechanism may be a second cylinder or the like. The driving shaft of the second cylinder is fixedly connected with the heating roller 260.
It is to be understood that the above references to the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for convenience in describing the present invention and simplifying the description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "plurality" is three or more.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (8)
1. A film winding machine for a film capacitor, for winding a protective film around an outer periphery of a cell of the film capacitor, the protective film being divided into a plurality of film segments, each of the film segments being wound around an outer periphery of one of the cells so as to be wound around the outer periphery of the cell by a plurality of turns of the protective film, characterized in that a surface of each of the film segments has a first set position and a second set position at intervals, the film winding machine for the film capacitor comprising:
the film guiding device comprises two first film guiding rollers which are arranged at intervals along a set direction, and the two first film guiding rollers are used for guiding the protective film to move along the set direction;
a film winding device provided on a downstream side of the film guide device in the set direction;
the heating device is arranged between the two first film guide rollers and is used for heating the first set position when the first set position passes through the heating device so as to form a shrinkage section;
the laser code spraying device is arranged between the two first film guiding rollers and is positioned at the downstream side of the heating device in the set direction, and the laser code spraying device is used for spraying codes on the second set position when the second set position passes through the laser code spraying device so as to form label information;
the laser code spraying device sprays the label information on the surface of the protective film, the heating device heats the protective film to form the shrinkage section on the protective film, and the distance between the heating device and the laser code spraying device corresponds to the distance between the first setting position and the second setting position.
2. The film winding machine for a thin film capacitor according to claim 1, further comprising two buffer assemblies and two clamping assemblies located between the two first film guiding rollers, wherein the two buffer assemblies and the two clamping assemblies are arranged at intervals along the set direction, the two clamping assemblies are located between the two buffer assemblies, the buffer assemblies are used for buffering a protective film, the clamping assemblies have a clamping state for clamping the protective film or a releasing state for releasing the protective film, the heating device is arranged between the two clamping assemblies, and the laser code spraying device is arranged between the buffer assemblies adjacent to the film winding device and the first film guiding rollers.
3. The film winding machine for a thin film capacitor according to claim 2, wherein the buffer assembly comprises two second film guiding rollers and a buffer roller, the two second film guiding rollers are arranged at intervals along the set direction, the buffer roller is located between the two second film guiding rollers, and the buffer roller is arranged in a suspended manner.
4. The film roll machine for thin film capacitors as claimed in claim 2, wherein the nip assembly comprises a first nip roller and a second nip roller, the first nip roller being located above the second nip roller, the first nip roller being movably disposed with respect to the second nip roller to move the nip assembly between the nip state and the release state.
5. The film winding machine for thin film capacitors as claimed in claim 4, further comprising a second driving motor and a first driving mechanism, wherein an output shaft of the second driving motor is in transmission connection with the first clamping roller, and the first driving mechanism is in driving connection with an integral structure formed by the first clamping roller and the second driving motor so as to drive the integral structure to move.
6. The film winding machine for a thin film capacitor according to claim 2, wherein the holding members each have a holding chamber for holding the protective film, and the heating means includes a heating roller which is higher than the holding chamber.
7. The film winding machine for a thin film capacitor according to claim 6, wherein the height of the heating roller is adjustably set.
8. The film winding machine for a thin film capacitor according to claim 7, further comprising a second driving mechanism for driving connection with the heating roller to adjust the height of the heating roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841578.4A CN115231021B (en) | 2022-07-18 | 2022-07-18 | Film winding machine for thin film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210841578.4A CN115231021B (en) | 2022-07-18 | 2022-07-18 | Film winding machine for thin film capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115231021A CN115231021A (en) | 2022-10-25 |
| CN115231021B true CN115231021B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210841578.4A Active CN115231021B (en) | 2022-07-18 | 2022-07-18 | Film winding machine for thin film capacitor |
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| CN (1) | CN115231021B (en) |
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