CN215160011U

CN215160011U - Rewinding equipment

Info

Publication number: CN215160011U
Application number: CN202120581362.XU
Authority: CN
Inventors: 张卫龙; 张五堂; 周中心; 熊亮
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-14
Anticipated expiration: 2031-03-22

Abstract

The embodiment of the utility model provides a rewinding equipment relates to lithium cell technical field. Rewinding equipment includes that first material of rolling up material subassembly, second material roll subassembly, tension roll and determine module, and tension roll and determine module set up and roll up between the material subassembly at first material roll subassembly and second, and first material roll subassembly is used for unreeling or rolling pole piece, and the material subassembly is used for the rolling or unreels the pole piece to the second, and the tension roll is used for adjusting pole piece tension, and determine module is used for detecting the qualification rate of pole piece. The embodiment of the utility model provides a rewinding equipment carries out the rewinding to the pole piece when breaking down in the electrode production process, avoids carrying out the rewinding with the rewinding function of equipment self, has improved the production efficiency of electrode.

Description

Rewinding equipment

Technical Field

The utility model relates to a lithium cell technical field particularly, relates to a rewinding equipment.

Background

In the production process of the lithium battery electrode, due to the reasons of poor pole piece, failure of process control, irregular winding and the like, the winding needs to be rewound many times, mainly in the coating and rolling processes. However, in the prior art, an independent rewinding device is not provided, and most rewinding is performed through the rewinding function of the device, so that production can be influenced, and bad phenomena such as tape breakage can be caused in the rewinding process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rewinding equipment, it can carry out the rewinding to the scroll in electrode production process, has improved the production efficiency of electrode.

The embodiment of the utility model is realized like this:

an embodiment of the utility model provides a rewinding equipment, rewinding equipment includes: the coil assembly is rolled up to first material, second material, tension roller and determine module, the tension roller reaches determine module sets up first material is rolled up the subassembly and is rolled up between the subassembly to the second, first material is rolled up the subassembly and is used for unreeling or rolling pole piece, the second material is rolled up the subassembly and is used for the rolling or unreel the pole piece, the tension roller is used for adjusting pole piece tension, determine module is used for detecting the qualification rate of pole piece.

The utility model discloses in the optional embodiment, the detection subassembly includes first light source, second light source and detection piece, first light source reaches the second light source interval sets up and forms the inspection channel, the inspection channel is used for supplying the pole piece passes, the detection piece with first light source or the second light source is connected, first light source reaches the second light source is used for providing the light source, the detection piece is used for gathering the image information of pole piece, with pass through the image information detects the qualification rate of pole piece.

In an alternative embodiment of the present invention, the detecting assembly further includes a reflector, and the reflector is disposed below the pole piece.

The utility model discloses in the optional embodiment, rewinding equipment still includes two components of rectifying, one of them the component of rectifying is close to first material of rolling up the setting of subassembly, another the component of rectifying is close to the setting of second material of rolling up the subassembly, the component of rectifying is used for detecting the position of pole piece.

In the optional embodiment of the present invention, the rewinding device further comprises two press belt assemblies, wherein one of the press belt assemblies is close to the first material roll assembly, and the other press belt assembly is close to the second material roll assembly.

The utility model discloses in the optional embodiment, press the area subassembly to include clamp area portion and splicing portion, the clamp area portion reaches splicing portion sets up respectively the both sides of pole piece, the clamp area portion can be to being close to splicing portion's direction motion under the broken circumstances in area appears in the pole piece, will the pole piece is fixed on the splicing portion.

In the optional embodiment of the present invention, the rewinding device further comprises a heating element, the heating element is close to the second material roll assembly, and the heating element is used for drying the pole piece.

In the optional embodiment of the present invention, the rewinding device further comprises a wrinkle removing roller, the wrinkle removing roller is disposed on the heating member away from one side of the second material roll assembly, and the wrinkle removing roller is used for flattening the pole piece.

In an optional embodiment of the present invention, the rewinding device further includes a dust removing member, the dust removing member is disposed on a side of the heating member away from the second material roll assembly, and the dust removing member is used for removing impurities on the pole piece before heating.

The utility model discloses in the optional embodiment, rewinding equipment still includes the transition roller, the transition roller sets up detection component with between the tension roller, be used for adjusting the height of pole piece.

The embodiment of the utility model provides a beneficial effect is: rewinding equipment includes that first material of rolling up material subassembly, second material roll subassembly, tension roll and determine module, and tension roll and determine module set up and roll up between the material subassembly at first material roll subassembly and second, and first material roll subassembly is used for unreeling or rolling pole piece, and the material subassembly is used for the rolling or unreels the pole piece to the second, and the tension roll is used for adjusting pole piece tension, and determine module is used for detecting the qualification rate of pole piece.

The embodiment of the utility model provides an in, the mould is rolled up the setting and is rolled up the material on the material subassembly at first material of rolling up or second, and in the in-process of processing is carried out the pole piece, and the material subassembly is rolled up as unwinding mechanism to the pole piece to first material, unreels the pole piece, rolls up the material subassembly by the second after tension roll and determine module and carries out the rolling, if need carry out the rewinding to the mould, and first material of rolling up the material subassembly then is as winding mechanism rolling pole piece, and determine module can detect the pole piece simultaneously, can discern the bad of pole piece. The embodiment of the utility model provides a rewinding equipment carries out the rewinding to the pole piece when breaking down in the electrode production process, avoids carrying out the rewinding with the rewinding function of equipment self, has improved the production efficiency of electrode.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of rewinding equipment provided by an embodiment of the present invention.

Fig. 2 is a block diagram of the deviation rectifying assembly of the rewinding device provided by the embodiment of the present invention.

The icon is 100-rewinding equipment; 110-a first roll assembly; 120-a second roll assembly; 130-a tension roller; 140-a detection component; 142-a first light source; 144-a second light source; 146-a detection member; 148-a mirror; 150-a deviation rectifying component; 152-a deviation-correcting sensor; 154-a controller; 156-a driver; 160-a belt press assembly; 162-a crimp section; 164-a lacing portion; 172-a heating element; 174-wrinkle-removing roller; 176-a dust removal member; 178-transition rolls.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the embodiment provides a rewinding device 100, and the rewinding device 100 provided in the embodiment can rewind the rolls in the electrode production process, so as to improve the electrode production efficiency.

In the production process of the lithium battery electrode, due to the reasons of poor pole piece, failure of process control, irregular winding and the like, the winding needs to be rewound many times, mainly in the coating and rolling processes. However, in the prior art, there is no single rewinding device 100, and most rewinding is performed through the rewinding function of the device itself, which may affect production, and may cause undesirable phenomena such as tape breakage during rewinding. The rewinding device 100 provided by the embodiment can improve the above problem, and the rewinding device 100 provided by the embodiment can rewind the roll in the electrode production process, so that the electrode production efficiency is improved.

In the present embodiment, the rewinding device 100 comprises 100: the first material roll assembly 110, the second material roll assembly 120, the tension roll 130 and the detection assembly 140 are arranged between the first material roll assembly 110 and the second material roll assembly 120, the first material roll assembly 110 is used for unwinding or winding a pole piece, the second material roll assembly 120 is used for winding or unwinding the pole piece, the tension roll 130 is used for adjusting the tension of the pole piece, and the detection assembly 140 is used for detecting the qualified rate of the pole piece.

In this embodiment, the die roll is disposed on the first material roll assembly 110 or the second material roll assembly 120, and in the process of processing the pole piece, the first material roll assembly 110 is used as an unwinding mechanism to unwind the pole piece, and the second material roll assembly 120 winds the pole piece after passing through the tension roller 130 and the detection assembly 140, and if the die roll needs to be rewound, the first material roll assembly 110 is used as a winding mechanism to wind the pole piece, and meanwhile, the detection assembly 140 can detect the pole piece, so that the defect of the pole piece can be identified.

The rewinding device 100 provided in this embodiment can rewind the electrode sheet when the electrode production process fails, so as to avoid rewinding with the rewinding function of the device itself, and improve the production efficiency of the electrode.

In this embodiment, the detecting assembly 140 includes a first light source 142, a second light source 144 and a detecting element 146, the first light source 142 and the second light source 144 are disposed at an interval to form a detecting channel, the detecting channel is used for the pole piece to pass through, the detecting element 146 is connected to the first light source 142 or the second light source 144, the first light source 142 and the second light source 144 are used for providing light sources, and the detecting element 146 is used for collecting image information of the pole piece to detect the qualified rate of the pole piece through the image information.

In this embodiment, it can be considered that the first light source 142 is disposed above the pole piece, the second light source 144 is disposed below the pole piece, when the pole piece passes through the detection channel, the first light source 142 and the second light source 144 provide light sources for the detection element 146 to collect image information of the pole piece, and whether the pole piece is qualified is determined by analyzing the image information.

The judgment mode is that the image information can be compared with a preset image, and the pole piece can be considered to be unqualified when the gray value difference between the image information and the preset image exceeds a certain numerical value range.

It will be readily appreciated that the first light source 142 may be disposed above the pole piece and the second light source 144 may be disposed below the pole piece. It is also possible that the first light source 142 is arranged below the pole piece and the second light source 144 is arranged above the pole piece.

In this embodiment, the detection assembly 140 further includes a mirror 148, the mirror 148 being disposed below the pole piece.

The operator can directly observe the surface condition of the upper surface of the pole piece, the lower surface is not good to directly observe, the reflector 148 can reflect the lower surface of the pole piece, and the operator can observe the condition of the lower surface of the pole piece through the reflector 148.

In this embodiment, the rewinding device 100 further comprises two deviation rectifying assemblies 150, wherein one deviation rectifying assembly 150 is disposed adjacent to the first roll assembly 110, the other deviation rectifying assembly 150 is disposed adjacent to the second roll assembly 120, and the deviation rectifying assembly 150 is used for detecting the position of the pole piece.

The two deviation rectifying assemblies 150 are respectively arranged close to the first material rolling assembly 110 and the second material rolling assembly 120, and are used for detecting whether the pole piece deviates in the electrode processing process, and timely rectifying deviation if the pole piece deviates, so that the defect caused by the deviation of the pole piece is prevented.

Referring to fig. 2, in the present embodiment, the deviation rectifying assembly 150 includes a deviation rectifying sensor 152, a controller 154, and a driver 156, the driver 156 is electrically connected to the controller 154, the deviation rectifying sensor 152 is electrically connected to the controller 154, the driver 156 is connected to the pole piece, the deviation rectifying sensor 152 is disposed at the pole piece for detecting an actual distance between the pole piece and the deviation rectifying sensor 152, the controller 154 can calculate an offset of the pole piece according to the actual distance and a preset distance, and the driver 156 is controlled to operate according to the offset to drive the pole piece to a preset position. The driver 156 may be a servo motor, and the controller 154 calculates the pulse amount according to the offset, so as to control the pole piece to return to the preset position.

In this embodiment, the rewinding device 100 further comprises two belt press assemblies 160, one belt press assembly 160 being disposed adjacent to the first roll assembly 110 and the other belt press assembly 160 being disposed adjacent to the second roll assembly 120.

In this embodiment, if the pole piece is broken, the belt pressing assembly 160 can fix the pole piece to prevent the pole piece from breaking and affecting other stations.

Referring to fig. 1, in the present embodiment, the tape pressing assembly 160 includes a tape pressing portion 162 and a tape splicing portion 164, the tape pressing portion 162 and the tape splicing portion 164 are respectively disposed at two sides of the pole piece, the tape pressing portion 162 can move toward the tape splicing portion 164, and the pole piece is fixed on the tape splicing portion 164 when the tape breaking occurs to the pole piece.

In the present embodiment, the tape connecting portion 164 is disposed in the direction of the pole piece, and during normal operation, the pole piece passes through the gap between the tape pressing portion 162 and the tape connecting portion 164, and if the pole piece is broken, the tape pressing portion 162 moves toward the tape connecting portion 164, thereby compressing the pole piece.

The belt pressing assembly 160 is disposed near the first material rolling assembly 110, and the deviation rectifying assembly 150 is disposed on a side of the belt pressing assembly 160 away from the first material rolling assembly. Similarly, another belt pressing assembly 160 is disposed near the second roll assembly 120, and another deviation rectifying assembly 150 is disposed on a side of the belt pressing assembly 160 away from the second roll assembly 120.

In this embodiment, rewinding device 100 further includes a heating element 172, heating element 172 is disposed adjacent to second reel assembly 120, and heating element 172 is configured to dry the pole pieces. The heating member 172 is disposed between the tension roller 130 and the deflection correcting member 150 adjacent to the second roll assembly 120.

In this embodiment, the rewinding device 100 further comprises a wrinkle-removing roller 174, the wrinkle-removing roller 174 is disposed on the side of the heating member 172 away from the second roll assembly 120, and the wrinkle-removing roller 174 is used for flattening the pole pieces. The wrinkle-removing roller 174 is disposed between the heating member 172 and the tension roller 130.

In this embodiment, the rewinding device 100 further comprises a dusting member 176, the dusting member 176 being disposed on the side of the heating member 172 remote from the second roll assembly 120, the dusting member 176 being used to remove contaminants from the pole pieces prior to heating. The dust removing member 176 is provided between the wrinkle smoothing roller 174 and the tension roller 130.

In this embodiment, the rewinding apparatus 100 further comprises a transition roller 178, the transition roller 178 being disposed between the detection assembly 140 and the tension roller 130 for adjusting the height of the pole piece. The transition roller 178 is disposed between the detection assembly 140 and the deviation rectification assembly 150 adjacent to the first roll assembly 110.

In summary, in the rewinding device 100 provided in this embodiment, in the embodiment, the die roll is disposed on the first material roll assembly 110 or the second material roll assembly 120, during the process of processing the pole piece, the first material roll assembly 110 serves as an unwinding mechanism to unwind the pole piece, and the pole piece is wound by the second material roll assembly 120 after passing through the tension roller 130 and the detection assembly 140, if the pole piece needs to be rewound, the first material roll assembly 110 serves as a winding mechanism to wind the pole piece, and the detection assembly 140 can detect the pole piece, so that the defect of the pole piece can be identified.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rewinding apparatus, characterized in that it comprises: the coil assembly is rolled up to first material, second material, tension roller and determine module, the tension roller reaches determine module sets up first material is rolled up the subassembly and is rolled up between the subassembly to the second, first material is rolled up the subassembly and is used for unreeling or rolling pole piece, the second material is rolled up the subassembly and is used for the rolling or unreel the pole piece, the tension roller is used for adjusting pole piece tension, determine module is used for detecting the qualification rate of pole piece.

2. The rewinding device as claimed in claim 1, wherein the detecting assembly includes a first light source, a second light source and a detecting element, the first light source and the second light source are arranged at intervals to form a detecting channel, the detecting channel is used for the pole piece to pass through, the detecting element is connected with the first light source or the second light source, the first light source and the second light source are used for providing light sources, and the detecting element is used for collecting image information of the pole piece so as to detect the qualification rate of the pole piece through the image information.

3. The rewinding apparatus as claimed in claim 2, characterized in that said detection assembly further comprises a mirror disposed below said pole piece.

4. A rewinding apparatus according to claim 1, further comprising two deviation rectifying assemblies, one of said deviation rectifying assemblies being arranged adjacent to said first reel assembly and the other of said deviation rectifying assemblies being arranged adjacent to said second reel assembly, said deviation rectifying assemblies being adapted to detect the position of a pole piece.

5. A rewinding apparatus according to claim 1, characterized in that it further comprises two press belt assemblies, one of which is arranged adjacent to said first reel assembly and the other of which is arranged adjacent to said second reel assembly.

6. A rewinding apparatus according to claim 5, characterized in that said belt assembly comprises a belt pressing portion and a belt splicing portion, said belt pressing portion and said belt splicing portion being arranged on either side of said pole piece, respectively, said belt pressing portion being movable in a direction towards said belt splicing portion to fix said pole piece on said belt splicing portion in case of breakage of said pole piece.

7. A rewinding device according to claim 1, further comprising a heating element arranged close to said second reel assembly for drying said pole pieces.

8. A rewinding device according to claim 7, further comprising a wrinkle-removing roller arranged on the side of the heating element remote from the second reel assembly, for flattening the pole pieces.

9. A rewinding apparatus according to claim 7, characterized in that it further comprises a dusting member arranged on the side of said heating member remote from said second reel assembly, for removing impurities from said pole pieces before heating.

10. The rewinding apparatus as claimed in claim 1, further comprising a transition roller disposed between the detection assembly and the tension roller for adjusting the height of the pole pieces.