CN219907843U - Winding device, vacuum coating system and battery manufacturing production line - Google Patents

Abstract

The utility model relates to a winding device, a vacuum coating system and a battery manufacturing production line, wherein a second winding assembly unwinds a coating substrate to be measured to a first winding assembly, and under the condition that rewinding of the coating substrate to be measured is realized, abnormal mark information of an abnormal position of the coating substrate to be measured can be detected through a mark detector and sent to a controller. The controller receives the abnormal mark information, so that the rewinding verification of the film-coated substrate to be tested can be realized. According to the scheme, the rewinding verification of the film-coated substrate to be tested is realized in a mode that the mark detector detects abnormal mark information, and the rewinding verification accuracy is higher than that of a manual verification mode.

Description

Winding device, vacuum coating system and battery manufacturing production line

Technical Field

The utility model relates to the technical field of process processing, in particular to a winding device, a vacuum coating system and a battery manufacturing production line.

Background

Vacuum coating refers to a method of forming a thin film by heating a metal or nonmetal material under high vacuum to evaporate and condense the material on the surface of a substrate. The vacuum coating film has the advantages of good compactness, high purity, uniform coating, good bonding strength between the film and the base material, firm film and the like because the film and the base material are widely selected, and is widely applied to processing technologies in various fields such as lithium batteries and the like.

However, in the related art, in the rewinding link, the coated substrate is often verified manually, and the accuracy of rewinding verification is low.

Disclosure of Invention

Based on this, it is necessary to provide a winding device, a vacuum coating system and a battery manufacturing line to improve accuracy of rewinding verification.

A winding device comprising: the device comprises a first winding assembly, a second winding assembly, a mark detector and a controller, wherein the controller is electrically connected with the mark detector, the first winding assembly is used for unreeling a to-be-measured coated substrate, and the to-be-measured coated substrate unreeled by the second winding assembly is reeled after unreeling is finished; the second winding assembly is used for winding the to-be-measured coated substrate unreeled by the first winding assembly and unreeling the to-be-measured coated substrate after winding is finished; the mark detector is used for detecting abnormal mark information of the film coating substrate to be detected in the process of winding the film coating substrate to be detected by the first winding assembly.

According to the winding device, the second winding assembly unwinds the to-be-measured coating substrate to the first winding assembly, and when the to-be-measured coating substrate is rewound, abnormal mark information of an abnormal position of the to-be-measured coating substrate can be detected through the mark detector and sent to the controller. The controller receives the abnormal mark information, so that the rewinding verification of the film-coated substrate to be tested can be realized. According to the scheme, the rewinding verification of the film-coated substrate to be tested is realized in a mode that the mark detector detects abnormal mark information, and the rewinding verification accuracy is higher than that of a manual verification mode.

In some embodiments, the anomaly marker information includes color information and the marker detector includes a marker color detector.

According to the technical scheme, the abnormal marking information comprises color information, namely, the abnormal position of the to-be-detected coating substrate is marked in a color marking mode, and the abnormal marking information can be obtained only by detecting the color information through the marking color detector in the rewinding verification process, so that the method has the advantages of being simple in detection mode and high in detection efficiency.

In some embodiments, the winding device further comprises a placement bracket on which the marker detector is mounted.

Above-mentioned scheme sets up at first winding subassembly department and places the support, further sets up mark detector in placing the support to place mark detector in one side of first winding subassembly and carry out mark detection, do not receive the unreeling influence of first winding subassembly, improve mark detector's detection reliability.

In some embodiments, the first winding assembly includes an unwind roller, and the mark detector is disposed along an axial direction of the unwind roller.

According to the scheme, the mark detector is arranged along the axial direction of the unreeling roller, so that different position points of the coating substrate to be detected are accurately identified, and the detection accuracy of the abnormal mark is improved.

In some embodiments, the winding device further comprises a flattening component, wherein the flattening component is arranged between the first winding component and the second winding component and is used for flattening the to-be-measured coated substrate.

According to the technical scheme, the rolling device is further provided with the flattening assembly between the first rolling assembly and the second rolling assembly, and the to-be-measured film coating substrate in the winding and unwinding process can be flattened through the flattening assembly, so that the tension of the to-be-measured film coating substrate is uniform, and the film coating reliability is improved.

In some embodiments, the nip assembly includes a nip roller and a driver in driving connection with the nip roller, the driver being in electrical connection with the controller.

According to the scheme, the flattening roller is connected through the driver in a transmission way, flattening control of the film coating substrate to be tested is achieved by using the mode that the flattening roller is driven by the driver, and the film coating substrate to be tested has high flattening reliability.

In some embodiments, the flattening assembly further comprises a frequency converter electrically connected between the controller and the driver.

Above-mentioned scheme, the exhibition subassembly still includes the converter, can realize the frequency conversion operation control of exhibition flat roller through the converter, further improves the exhibition reliability of exhibition subassembly.

In some embodiments, the winding device further comprises an auxiliary roller assembly disposed between the second winding assembly and the first winding assembly.

According to the technical scheme, the auxiliary roller assembly is further arranged between the second winding assembly and the first winding assembly, the to-be-measured coating substrate in the winding and unwinding process can be further flattened through the auxiliary roller assembly, and the risk of wrinkling or breakage of the to-be-measured coating substrate is reduced.

The embodiment of the utility model also provides a vacuum coating system which comprises the vacuum coating assembly and the winding device.

The embodiment of the utility model also provides a battery manufacturing production line, which comprises the vacuum coating system.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic view of a winding apparatus according to some embodiments of the present utility model;

FIG. 2 is a schematic view of a winding device according to other embodiments of the present utility model;

FIG. 3 is a schematic view of a winding apparatus according to still other embodiments of the present utility model;

FIG. 4 is a schematic diagram of a flattening assembly in accordance with some embodiments of the present utility model;

FIG. 5 is a schematic view of a flattening assembly according to other embodiments of the present utility model;

fig. 6 is a schematic view of a winding device according to still other embodiments of the present utility model.

Reference numerals in the specific embodiments are as follows:

11-second winding assembly, 12-first winding assembly, 13-mark detector, 14-controller, 15-placement bracket, 16-flattening assembly, 161-flattening roller, 162-driver, 163-frequency converter, 17-auxiliary roller assembly, 171-main drum, 172-auxiliary roller.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present utility model, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

In the preparation process of the power battery, a film coating process is an important process for improving the performance and stability of the power battery, and has wide application in the power battery, for example, a negative electrode coating is prepared for the power battery by a vacuum film coating technology. The coating component of the vacuum coating system is often required to operate in cooperation with a winding system, the substrate to be coated is wound and unwound through the winding system, and the substrate to be coated is coated by the vacuum coating component in the winding and unwinding process, so that the coated substrate is obtained.

In the film coating process, if the film coating substrate has defects (such as substrate breakage, fold or film coating failure, etc.), the film coating substrate will be marked as abnormal, and in the subsequent rewinding process, verification of the film coating substrate needs to be realized by detecting the mark. The currently adopted verification methods are all that workers observe visually, and in the verification process, verification errors are easily caused by human misoperation, so that the defect of low accuracy of rewinding verification exists.

In order to alleviate the problem of low accuracy of rewinding verification when the coated substrate is subjected to rewinding verification, the technical scheme of the utility model is that the mark detector is arranged on one side of the first winding assembly, the mark detector is connected to the controller, abnormal mark information of the coated substrate in the unwinding process is detected in real time through the mark detector and is sent to the controller, automatic rewinding verification is realized, manual participation is not needed, the accuracy of rewinding verification can be improved, and manpower resources can be effectively saved.

The winding device provided by the embodiment of the utility model is applied to a vacuum coating system, and the vacuum coating system comprises a vacuum coating component and the winding device. The vacuum coating assembly is used for coating the substrate to be coated, the winding device is used for controlling winding of the coated substrate obtained by coating, the substrate to be coated is transmitted to the vacuum coating assembly for coating through the first winding assembly, and the coated substrate obtained after coating is wound and collected through the second winding assembly, so that the coating function is realized.

It can be appreciated that the winding device of the embodiment of the utility model not only can be used in the processing technology of the power battery to perform winding control on the coating substrate in the power battery, but also can be used in other processing technologies to perform coating on other types of substrates, such as processing technologies of optical films, building glass and the like, and is not particularly limited. In order to facilitate understanding of the technical solution of the present utility model, the following can be understood that the winding device is applied to the processing technology of the power-driven battery.

Referring to fig. 1, a winding device includes: the second winding assembly 11, the first winding assembly 12, the mark detector 13 and the controller 14, wherein the controller 14 is electrically connected with the mark detector 13, the first winding assembly 12 is used for unwinding the to-be-measured coated substrate, and winding the to-be-measured coated substrate unwound by the second winding assembly 11 after the unwinding is finished; the second winding assembly 11 is used for winding the to-be-measured coated substrate unwound by the first winding assembly 12, unwinding the to-be-measured coated substrate after winding is finished, and the mark detector 13 is used for detecting abnormal mark information of the to-be-measured coated substrate in the process of winding the to-be-measured coated substrate by the first winding assembly 12.

Specifically, the second winding assembly 11 is a motion assembly for winding and storing the to-be-measured coated substrate, and releasing the to-be-measured coated substrate in a winding state to re-wind, and may specifically be a winding assembly. The first winding assembly 12 is a motion assembly for unwinding the substrate to be coated, and winding again when the substrate to be coated after coating is released through the second winding assembly 11, and may be specifically an unwinding assembly. The mark detector 13 is a detecting device for detecting abnormal mark information of the coating substrate to be detected released by the first winding assembly 12. The to-be-measured coating substrate is the substrate which is already used for coating the vacuum coating component and waits for rewinding verification. The abnormal marking information is information obtained after the abnormal position points are marked when the coating substrate to be detected has an abnormal state.

After the vacuum coating system starts vacuum coating, the coating component matched with the winding device can carry out coating on the substrate to be coated, which is transmitted to the coating position, so as to obtain a coated substrate, and the coated substrate is further transmitted under the action of the winding device and finally wound up. In the process of coating the substrate to be coated, if the substrate to be coated has abnormal states (such as wrinkles, damages and the like) which can be identified by the vacuum coating component, the vacuum coating component marks the abnormal positions to obtain abnormal marking information.

After the whole substrate to be coated is coated to obtain a coated substrate, before the coated substrate is put into practical use, the coated substrate needs to be subjected to rewinding verification, and after the rewinding verification, the coated substrate with no abnormal mark can flow into subsequent processes for use. The coating substrate with the abnormal mark needs to be further processed to eliminate defects, and then is put into subsequent working procedures for use, or is directly discarded, and the coating substrate is specifically selected according to actual requirements.

In the rewinding process, the to-be-measured coated substrate needing to be subjected to rewinding verification is stored in the second winding assembly 11, after the second winding assembly 11 is unwound, the to-be-measured coated substrate is stretched and flattened, and is rewound at the first winding assembly 12, so that the rewinding is realized. At this time, the mark detector 13 provided on one side of the first winding assembly 12 detects in real time whether or not the wound coating film substrate has abnormal mark information. If the abnormal mark information is detected, the abnormal mark position information is transmitted to the controller 14, the controller 14 can consider that the to-be-measured coating substrate of the current roll has defects after receiving the abnormal mark position information, and if the controller 14 does not receive the abnormal mark position information in the whole rewinding process, the to-be-measured coating substrate of the current roll is considered to have no defects.

It should be noted that, in a more detailed embodiment, the controller 14 is further electrically connected to the second winding assembly 11 and the first winding assembly 12, and in a case where winding and unwinding operations are required, the controller 14 sends corresponding control instructions to the first winding assembly 12 and the second winding assembly 11, so that the second winding assembly 11 releases the to-be-coated substrate, and winds the to-be-coated substrate by the first winding assembly 12, so as to implement rewinding of the to-be-coated substrate.

It will be appreciated that the specific type of controller 14 is not exclusive, and in one embodiment, controller 14 may be an MCU (Microcontroller Unit, micro control unit), a PLC (Programmable Logic Controller, programmable logic controller 14), a single chip microcomputer, or the like, without limitation.

In the above winding device, the second winding assembly 11 unwinds the to-be-measured coated substrate to the first winding assembly 12, and when the to-be-measured coated substrate is rewound, the abnormal mark information of the abnormal position of the to-be-measured coated substrate can be detected by the mark detector 13 and sent to the controller 14. The controller 14 receives the abnormal mark information, so that the rewinding verification of the to-be-detected film coating substrate can be realized. According to the scheme, the rewinding verification of the film-coated substrate to be tested is realized by detecting the abnormal mark information through the mark detector 13, and the rewinding verification accuracy is higher than that of a manual verification mode.

Meanwhile, the winding device does not need human participation when carrying out rewinding verification, and can effectively save human resources.

In some embodiments, the anomaly marker information includes color information and the marker detector 13 includes a marker color detector.

Specifically, the color information is information representing a color class; the mark color detector is a device capable of identifying different mark colors. The type of the mark color detector is not unique, and may be a color sensor or the like, and is not particularly limited. According to the scheme of the embodiment, the abnormal position points of the film coating substrate to be detected are identified by adopting a color marking and identifying mode, and the controller 14 considers that the film coating substrate to be detected has defects after receiving the color information acquired and sent by the marking color detector.

It should be noted that the type of color information is not unique, and in a more detailed embodiment, the locations where defects exist can be marked with the same color when vacuum coating, and only the color is detected later, that is, the substrate to be coated is considered to have defects. For example, in one more detailed embodiment, the defect locations may be marked in a yellow-marked manner.

In other embodiments, different colors may be marked for different defect positions, or different colors may be marked for different defect types, so long as the color of the substrate to be coated can be distinguished from the color of the substrate to be coated. In the rewinding process, the mark color detector can identify the colors different from the colors of the coating substrate to be measured, and send corresponding abnormal mark information to the controller 14.

It will be appreciated that in other embodiments, the location points where the substrate to be coated has a defect may be marked by other methods, which is not limited in particular. For example, the abnormal position mark can be implemented by a labeling manner, the corresponding abnormal mark information includes label information, and the controller 14 can also implement rewinding verification of the to-be-tested coating substrate according to the received label information.

According to the technical scheme, the abnormal marking information comprises color information, namely, the abnormal position of the to-be-detected coating substrate is marked in a color marking mode, and the abnormal marking information can be obtained only by detecting the color information through the marking color detector in the rewinding verification process, so that the method has the advantages of being simple in detection mode and high in detection efficiency.

It will be appreciated that in one embodiment, the marker detector 13 may be attached directly to one side of the first winding assembly 12. In other embodiments, the mark detector 13 may be disposed on one side of the first winding assembly 12 and spaced apart from the first winding assembly 12. In more detail, taking the example of the arrangement of the mark detector 13 spaced from the first winding assembly 12, in some embodiments, referring to fig. 2, the winding device further includes a placement bracket 15 to which the mark detector 13 is mounted. The placement bracket 15 is a bracket for fixing the placement mark detector 13, and the type thereof is not exclusive, as long as the mark detector 13 can be disposed at a certain height on one side of the first winding assembly 12.

In more detail, in one embodiment, the placement frame 15 is a height-adjustable frame, and by this type of placement frame 15, the detection height of the mark detector 13 can be adjusted in combination with the actual situation, and the detection height of the mark detector 13 is more matched with the first winding assembly 12, so as to further improve the mark detection accuracy.

In the above-described configuration, the mark detector 13 is provided on the placement frame 15, so that the mark detector 13 is placed on one side of the first winding assembly 12 to perform mark detection, and the detection reliability of the mark detector 13 is improved without being affected by unreeling of the first winding assembly 12.

In some embodiments, the first winding assembly 12 includes an unwind roller with the mark detector 13 disposed along an axial direction of the unwind roller.

Specifically, the unreeling roller is a roller for releasing the deposited coated substrate, and in the technical scheme of this embodiment, the unreeling roller can further reel the coated substrate to be measured, which is stored by winding the second winding assembly 11, again, so as to realize the rewinding function. In the rewinding process, the to-be-measured coated substrate is flattened along the unreeling roller, and the mark detector 13 is arranged along the axial direction of the unreeling roller, so that the monitoring of all position points of the to-be-measured coated substrate is realized.

According to the scheme, the mark detector 13 is arranged along the axial direction of the unreeling roller, so that different position points of the film coating substrate to be detected are accurately identified, and the abnormal mark detection accuracy is improved.

Referring to fig. 3, in some embodiments, the winding apparatus further includes a flattening component 16, where the flattening component 16 is disposed between the first winding component 12 and the second winding component 11, and is used for flattening the coated substrate to be tested.

Specifically, the flattening component 16 is a component for flattening the film-coated substrate to be tested. In the winding and unwinding processes of the winding device, a substrate to be coated or coated with the film can be wrinkled due to unbalanced stress, and even can be broken when serious. To alleviate this phenomenon, a flattening component 16 is further disposed between the second winding component 11 and the first winding component 12, and when the substrate is conveyed to the flattening component 16 during the winding process, the substrate is flattened by the flattening component 16, so as to balance the tension of the substrate during the winding process, and reduce the risk of wrinkling and breaking.

According to the scheme, the rolling device is further provided with the flattening assembly 16 between the second rolling assembly 11 and the second rolling assembly 11, and the to-be-measured film-coated substrate in the winding and unwinding process can be flattened through the flattening assembly 16, so that the tension of the to-be-measured film-coated substrate is uniform, and the film-coated reliability is improved.

Referring to fig. 4 in combination, in some embodiments, nip assembly 16 includes nip roller 161 and a driver 162 drivingly connected to nip roller 161, driver 162 being electrically connected to controller 14.

Specifically, the nip roll 161, that is, the bending roll, and the nip roll 161 includes a high-quality thick-walled rubber hollow roll, a bending iron core, a holder, and a hand lever regulator, and has functions of adjusting tension, flattening a base material, and eliminating wrinkles and wrinkles of the base material. During operation of the flattening assembly 16, the driver 162 can feed back real-time operation parameters to the controller 14, and then the driver 162 receives adjustment control signals fed back by the controller 14 according to the operation parameters, so as to drive the flattening roller 161 to rotate, thereby realizing the flattening function.

According to the scheme, the flattening roller 161 is connected through the driver 162 in a transmission manner, and the flattening control of the film coating substrate to be tested is realized by using the mode that the driver 162 drives the flattening roller 161, so that the film coating substrate to be tested has higher flattening reliability.

In some embodiments, referring to FIG. 5, flattening assembly 16 further includes a frequency converter 163, frequency converter 163 being electrically connected between controller 14 and driver 162.

Specifically, in an actual use scenario, in order to further improve the flattening performance of the flattening roller 161, a frequency converter 163 is further provided between the controller 14 and the driver 162, and flattening control is realized by frequency conversion driving of the frequency converter 163. In this case, the controller 14 may be regarded as a master station, and the inverter 163 may be regarded as a slave station, so that the drive control of the flattening roller 161 is performed.

In the above scheme, the flattening assembly 16 further comprises the frequency converter 163, and the frequency conversion operation control of the flattening roller 161 can be realized through the frequency converter 163, so that the flattening reliability of the flattening assembly 16 is further improved.

It should be noted that the number of the nip rollers 161, the frequency converter 163 and the drivers 162 provided in the winding device is not unique, and that one or more nip rollers 161 may be provided in the winding device in accordance with actual demands, and each nip roller 161 is correspondingly driven by one driver 162, that is, the number of nip rollers 161 and the number of drivers 162 are the same. The driver 162 may be directly connected to the controller 14, or may be connected to the controller 14 through the frequency converters 163, that is, the number of frequency converters 163 in the flattening assembly 16 may be set to be the same as the number of the flattening rollers 161, or may be set to be less than the number of the flattening rollers 161, which is selected in accordance with actual requirements.

In more detail, in one embodiment, the winding device is provided with a plurality of flattening rollers 161, each flattening roller 161 is correspondingly connected with one driver 162, each driver 162 is correspondingly connected with one frequency converter 163, and each driver 162 and each frequency converter 163 are respectively connected to the controller 14. That is, in the embodiment, each of the flattening rollers 161 is driven by the frequency converter 163 and the driver 162.

According to the research, the current of the frequency converter 163 is changed continuously along with the continuous change of the winding diameter of the coating substrate in the actual operation process of the winding device, and the corresponding torque of the frequency converter 163 is also changed. Therefore, the corresponding relation between the current of the frequency converter 163 and the torque of the frequency converter 163 can be established through multiple experimental analysis and stored in the controller 14 for subsequent flattening control.

It will be appreciated that the correspondence between the current of the frequency converter 163 and the torque of the frequency converter 163 may be stored in the form of a database, a graph, a table, or the like, or may be stored in the form of a functional relationship by establishing a functional relationship between the current of the frequency converter 163 and the torque of the frequency converter 163 by means of linear fitting or the like, which is not particularly limited.

Taking a group of components consisting of a flattening roller 161, a driver 162 and a frequency converter 163 as an example, for the group of components, when flattening control is performed, firstly, the controller 14 receives the current fed back by the driver 162 or the frequency converter 163 and the current torque, and the controller 14 matches in the corresponding relation between the current of the frequency converter 163 and the torque of the frequency converter 163 according to the current, so as to obtain the actually required torque. The controller 14 then makes a difference according to the actual required torque and the current torque, compensates the torque difference in the frequency converter 163 through frequency conversion control, and finally outputs a corresponding control signal to the driver 162, and the driver 162 drives the flattening roller 161 to rotate, thereby realizing flattening compensation control.

It should be noted that the specific type of driver 162 is not exclusive, and in one embodiment, driver 162 includes a motor, and during actual flattening control, flattening roller 161 is driven to rotate by the motor receiving a control signal output from frequency converter 163.

It will be appreciated that the connection between the frequency converters 163 and the controller 14 is not exclusive, and the controller 14 and each frequency converter 163 may be connected by wired or wireless communication, so long as rapid information interaction between the two can be achieved. For example, in some embodiments, the frequency converter 163 and the controller 14 are communicatively coupled to a communication link system via ethernet-based control.

Specifically, the control and communication LINK system (Control Communication Link, CC-LINK) based on ethernet, i.e. CC-LINK IE, is an open field bus, which has a large data capacity, a multi-level selectable communication speed, and is a composite, open, and adaptable network system, and can adapt to different ranges from a higher management layer network to a lower sensor layer network. It will be appreciated that in alternative embodiments, the frequency converter 163 and the controller 14 may communicate in other ways, as may be selected in conjunction with actual demand.

According to the scheme, the frequency converter 163 and the controller 14 are in communication connection with the communication link system through control based on the Ethernet, so that ultra-high-speed and ultra-large-capacity field network communication can be realized, and the interaction efficiency between the frequency converter 163 and the controller 14 is improved.

In some embodiments, the second winding assembly 11 includes a wind-up roller and a wind-up drive that is connected to the controller 14 and the wind-up roller, respectively.

Specifically, the wind-up roller is a roller for winding up and storing the coated substrate. The winding driver is used for driving the winding roller to rotate so as to wind and store the coated substrate. The winding driver is connected with the controller 14, and under the control of the controller 14, the driver 162 drives the winding roller to rotate or stop rotating, so as to realize the winding function.

Above-mentioned scheme, second winding assembly 11 includes wind-up roll and rolling driver, through the mode of controller 14 control rolling driver, rolling driver drive wind-up roll motion, realizes rolling control, has higher rolling drive reliability.

In some embodiments, the first winding assembly 12 includes an unwind roller and an unwind driver that is connected to the controller 14 and the unwind roller, respectively.

Specifically, the unreeling roller is a roller for releasing the deposited coated substrate. The unreeling driver is a device for driving the unreeling roller to rotate so as to release the coated substrate for reeling (i.e. rewinding). The unreeling driver is connected with the controller 14, and under the control of the controller 14, the driver 162 drives the unreeling roller to rotate or stop rotating, so as to realize the unreeling function.

In the above scheme, the first winding assembly 12 includes the unwinding roller and the unwinding driver, and the unwinding driver is controlled by the controller 14 to drive the unwinding roller to move, so as to realize the unwinding control, and have higher unwinding driving reliability.

Referring to fig. 6 in combination, in some embodiments, the winding apparatus further includes an auxiliary roller assembly 17, and the auxiliary roller assembly 17 is disposed between the second winding assembly 11 and the first winding assembly 12.

Specifically, the auxiliary roller assembly 17 is an auxiliary winding and unwinding device, the auxiliary roller assembly 17 comprises an auxiliary roller 172, a main drum 171 and corresponding auxiliary drivers, the auxiliary drivers are connected to the controller 14, and the auxiliary roller 172 and the main drum 171 are driven to operate under the control of the controller 14, so that the winding and unwinding functions are realized.

It should be noted that the placement of the auxiliary roller 172 and the main drum 171 in the winding device is not exclusive, and in a more detailed embodiment, a first auxiliary roller, a second auxiliary roller, a third auxiliary roller, a second auxiliary roller, a first main drum, a third auxiliary roller, a fourth auxiliary roller, a fifth auxiliary roller, a sixth auxiliary roller, a second main drum, a seventh auxiliary roller, a fifth auxiliary roller, a sixth auxiliary roller, an eighth auxiliary roller, and a seventh auxiliary roller are sequentially disposed between the first winding assembly 12 and the second winding assembly 11.

According to the scheme, the auxiliary roller assembly 17 is further arranged between the second winding assembly 11 and the first winding assembly 12, and the to-be-measured coated substrate in the winding and unwinding process can be further flattened through the auxiliary roller assembly 17, so that the risk of wrinkling or breaking of the to-be-measured coated substrate is reduced.

In order to facilitate an understanding of the technical solution of the present utility model, the present utility model will be explained below with reference to more detailed examples.

In the coating stage, under the action of the controller 14, the first winding assembly 12 unwinds and transmits the substrate to be coated to the vacuum coating assembly for coating, and the substrate after coating is obtained and is wound and stored by the second winding assembly 11. In this process, controller 14 receives the inverter 163 current and the current torque of flattening assembly 16 in real time, and matches the inverter 163 current in a pre-stored correspondence between the inverter 163 current and the inverter 163 torque, resulting in the actual required torque. The controller 14 makes a difference according to the actual required torque and the current torque, compensates the torque difference in the frequency converter 163 through frequency conversion control, adjusts the motor operation of the flattening assembly 16 through a control signal output by the frequency converter 163, and relieves the phenomenon that the coating substrate is wrinkled or disconnected in the coating process. And in the coating process, if the defect of the coating substrate is detected, the defect position is marked in a yellow marking mode.

After coating, unreeling the second winding assembly 11 in the coating stage, reeling the first winding assembly 12, and releasing the coating substrate stored in the reeling for verification, namely, carrying out rewinding verification. In the rewinding process, in order to alleviate the phenomenon that the coated substrate is wrinkled or broken, the controller 14 needs to acquire the current and the current torque of the frequency converter 163 of the flattening assembly 16, and perform compensation adjustment in real time, which is not described in detail. In the rewinding process, the mark color detector arranged on one side of the first winding assembly 12 can detect whether the coating substrate has a mark yellow position in real time, and if so, the mark yellow color information is sent to the controller 14 to realize rewinding verification.

The embodiment of the utility model also provides a vacuum coating system which comprises the vacuum coating assembly and the winding device.

Specifically, the winding device is shown in the above embodiments and the drawings, and will not be described herein. The vacuum coating system is used for coating the substrate to be coated when the winding device winds and unwinds the substrate to be coated. In the vacuum coating system, the second winding assembly 11 unwinds the coating substrate to be tested to the first winding assembly 12, and when the rewinding of the coating substrate to be tested is realized, the abnormal mark information of the abnormal position of the coating substrate to be tested can be detected by the mark detector 13 and sent to the controller 14. The controller 14 receives the abnormal mark information, so that the rewinding verification of the to-be-detected film coating substrate can be realized. According to the scheme, the rewinding verification of the film-coated substrate to be tested is realized by detecting the abnormal mark information through the mark detector 13, and the rewinding verification accuracy is higher than that of a manual verification mode.

Further, the utility model also provides a battery manufacturing production line, which comprises the vacuum coating system.

Specifically, as shown in the above embodiment, the vacuum coating system realizes the vacuum coating process of the power battery through the battery manufacturing production line of the embodiment of the utility model. In this solution, the first winding assembly 12 unwinds the to-be-measured coated substrate to the second winding assembly 11, and when the to-be-measured coated substrate is rewound, the abnormal mark information of the abnormal position of the to-be-measured coated substrate can be detected by the mark detector 13 and sent to the controller 14. The controller 14 receives the abnormal mark information, so that the rewinding verification of the to-be-detected film coating substrate can be realized. The method for detecting the abnormal mark information by the mark detector 13 realizes the rewinding verification of the film-coated substrate to be detected, and has higher rewinding verification accuracy compared with the manual verification method.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A winding device, characterized by comprising:

the first winding assembly is used for unreeling the to-be-tested coated substrate, and reeling the to-be-tested coated substrate unreeled by the second winding assembly after unreeling is finished; the second winding assembly is used for winding the to-be-measured coated substrate unreeled by the first winding assembly and unreeling the to-be-measured coated substrate after winding is finished;

the mark detector is used for detecting abnormal mark information of the film-coated substrate to be detected in the process of winding the film-coated substrate to be detected by the first winding assembly; wherein the abnormal mark information includes color information, and the mark detector includes a mark color detector;

and the controller is electrically connected with the mark detector.

2. The winding device of claim 1, further comprising a placement bracket, the marker detector being mounted on the placement bracket.

3. The winding device of claim 1, wherein the first winding assembly includes an unwind roller, and the marking detector is disposed along an axial direction of the unwind roller.

4. A winding device according to any one of claims 1 to 3, further comprising a flattening assembly disposed between the first winding assembly and the second winding assembly for flattening the coated substrate to be measured.

5. The winding apparatus of claim 4, wherein the nip assembly comprises a nip roller and a driver in driving connection with the nip roller, the driver being in electrical connection with the controller.

6. The winding apparatus of claim 5, wherein the flattening assembly further comprises a frequency converter electrically connected between the controller and the driver.

7. The winding device according to claim 6, wherein the frequency converter and the controller are connected to a communication link system by an ethernet-based control.

8. A winding device according to any one of claims 1-3, further comprising an auxiliary roller assembly arranged between the second winding assembly and the first winding assembly.

9. A vacuum coating system comprising a vacuum coating assembly and a winding apparatus according to any one of claims 1 to 8.

10. A battery manufacturing line comprising the vacuum coating system of claim 9.