Sampling mechanism for copper foil lug material

Abstract

The utility model discloses a sampling mechanism for a copper foil lug material. The sampling mechanism comprises a mounting frame, the turntable is rotationally mounted on the mounting frame through a rotating shaft, and a handle is connected to the end of the rotating shaft and used for driving the turntable to rotate; the driving device is mounted on the turntable; the air swelling shaft is linked with the driving device; the lug winding roller is connected to the outer portion of the air swelling shaft in a sleeving mode and used for winding the lug in a matched mode; according to the ear material sampling device, when an ear material needs to be sampled, only the standby roller and the running ear material winding roller need to be switched, meanwhile, connection between the ear material and the ear material winding roller is cut off, the standby roller can replace the ear material winding roller to wind the ear material, and therefore the ear material winding roller can be replaced by the standby roller to wind the ear material. Compared with the prior art, the copper foil winding device has the advantages that the copper foil winding device is simple in structure and free of foil breakage risk, workers can take and use lug materials on the lug material winding roller to perform physical property testing, the lug materials are cut to perform testing instead of sampling testing from the middle position of the copper foil, waste of the copper foil can be reduced, and production cost of enterprises is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil production equipment, in particular to a sampling mechanism for copper foil ear materials. Background Art

[0002] With the continuous progress of technology, lithium-ion batteries have become an indispensable energy storage device in modern society and are widely used in many fields such as electric vehicles, smart phones, and laptop computers. As the negative electrode current collector material of lithium-ion batteries, the performance of lithium-ion copper foil plays a crucial role in the overall performance of the battery. However, since the additive content in lithium-ion copper foil cannot be accurately measured, traditional lithium-ion copper foil needs to continuously monitor the physical properties of the copper foil during the production adjustment process and adjust the physical properties of the copper foil according to the monitoring results. After stabilization, each batch is detected according to the copper foil unwind.

[0003] For the physical property detection of copper foil, the copper foil is sampled and cut into sample strips with fixed length and width for destructive testing. Since the current lithium-ion copper foil produced has a relatively thin specification, if the sample is directly cut in the middle of the winding roller, the sampling area cannot be covered by the copper foil wound later, which will lead to creases on the copper foil appearance and cause a large number of copper foil samples to be scrapped. In the prior art, the most common method is to first cut the ear material of the copper foil. The ear material is wound on an ear material winding roller (the ear material winding roller is driven by a motor to rotate). Manually stop the motor, separate the ear material from the ear material winding roller, and intercept a section of the required ear material to test the physical properties. During the whole process, the copper foil production is still in dynamic winding. When the motor cooperating with the winding of the ear material pauses, the ear material cut from the copper foil is not continuously wound by the ear material winding roller and is thus easily clamped into the copper foil winding roller. Due to the action of the winding tension, the wound copper foil is always in a straightened state. Once the ear material is clamped into it, there is a risk of copper foil breakage, which will have a greater impact on the production efficiency and bring unnecessary losses to the factory. Summary of the Utility Model

[0004] To solve the above problems, the utility model provides a sampling mechanism for copper foil ear materials.

[0005] The technical solution adopted by the utility model is as follows: A sampling mechanism for copper foil ear materials is installed on one side of a copper foil winding roller. The copper foil winding roller is used for winding continuously transported copper foil. A cutter for cutting the edge of the copper foil into ear materials is provided on the transport path of the copper foil. The sampling mechanism includes:

[0006] A mounting frame;

[0007] A turntable, rotatably installed on the mounting frame through a rotating shaft. The end of the rotating shaft is connected with a handle, and the handle is used to drive the turntable to rotate;

[0008] A driving device, installed on the turntable;

[0009] An air shaft, which is linked to the driving device;

[0010] An ear material winding roller, which is sleeved outside the air shaft and is used to cooperate with winding the ear material;

[0011] A spare roller, which is linked to the driving device, and an adhesive layer is provided outside the spare roller, and the spare roller and the air shaft are arranged at intervals.

[0012] The following also provides several optional ways, but it is not an additional limitation to the above overall solution, but only a further supplement or preference. On the premise of no technical or logical contradiction, each optional way can be combined with the above overall solution separately, and can also be combined between multiple optional ways.

[0013] Preferably, the driving device includes:

[0014] A driving motor, which is fixed on the turntable;

[0015] A transmission component, which is linked to the driving motor, and the transmission component is used to cooperate with driving the air shaft and the spare roller to rotate synchronously.

[0016] Preferably, the transmission component includes:

[0017] A driving wheel, which is linked to the driving motor;

[0018] A first driven wheel, which is fixed at one end of the air shaft;

[0019] A second driven wheel, which is fixed at one end of the spare roller;

[0020] A synchronous belt, which is installed between the driving wheel, the first driven wheel and the second driven wheel.

[0021] Preferably, the ends of the air shaft and the spare roller are respectively transferred on the turntable through bearings.

[0022] More preferably, the spare roller and the air shaft are respectively located on both sides of the axis of the turntable.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. When sampling ear material, firstly, stick an adhesive layer (tape) on the spare roller, then turn the handle to switch the position of the spare roller and the running ear material winding roller, and then use the cutter to disconnect the ear material and the ear material winding roller. At this time, the ear material will be wound on the spare roller through the tape, and the drive motor does not need to stop working, which is easy to operate. In addition, since the ear material will continue to be wound, it will not be rolled into the copper foil winding roller, and there will be no risk of foil breaking. The staff can take the ear material on the ear material winding roller for physical property testing;

[0025] 2. Testing by cutting the ear material instead of sampling from the middle of the copper foil can reduce the waste of copper foil and reduce the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a schematic plan view of an ear material winding roller for winding ear material in one embodiment of the present application;

[0028] Figure 2 It is a plan view schematically showing the position switching process of the ear material winding roller and the standby roller in one embodiment of the present application;

[0029] Figure 3 This is a plan view of the ear material winding roller and the standby roller after the positions are switched in one embodiment of the present application;

[0030] Figure 4 It is a schematic plan view of cutting and forming ear material on copper foil in one embodiment of the present application;

[0031] Figure 5 This is a schematic diagram of the placement of a cutter on a copper foil in one embodiment of the present application;

[0032] Figure 6 This is an assembly structure diagram of a driving motor and a transmission assembly in one embodiment of the present application;

[0033] Figure 7 This is a plan view of installing a drive motor and a transmission assembly on a turntable in one embodiment of the present application.

[0034] In the attached drawings, the markings are as follows: a - sampling mechanism, 1 - copper foil winding roll, 2 - copper foil, 3 - cutter, 4 - ear material, 5 - turntable, 6 - drive motor, 7 - transmission assembly, 71 - driving wheel, 72 - first driven wheel, 73 - second driven wheel, 74 - synchronous belt, 8 - handle, 9 - air shaft, 10 - spare roll, 101 - adhesive layer, 11 - ear material winding roll, 12 - mounting bracket.

[0035] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] Specific implementation scheme: Refer to Figures 1 - 7 , the present utility model is a sampling mechanism for copper foil ear material, which is installed on one side of the copper foil winding roll 1. The copper foil winding roll 1 is used for winding the continuously conveyed copper foil 2. A cutter 3 for cutting the edge of the copper foil 2 into ear material 4 is provided on the conveying path of the copper foil 2. The sampling mechanism a includes:

[0040] Mounting bracket 12;

[0041] Turntable 5, which is rotatably installed on the mounting bracket 12 through a rotating shaft. The end of the rotating shaft is connected with a handle 8, and the handle 8 is used to drive the turntable 5 to rotate;

[0042] A driving device, mounted on the turntable 5;

[0043] The air expansion shaft 9 is linked to the driving device;

[0044] The ear material winding roller 11 is sleeved on the outside of the air expansion shaft 9 and is used to cooperate with the ear material 4 to be wound;

[0045] The standby roller 10 is linked to the driving device, an adhesive layer 101 is arranged on the outside of the standby roller 10, and the standby roller 10 and the air expansion shaft 9 are arranged at intervals.

[0046] The physical properties of lithium batteries are regulated by additives. Since the content of lithium battery additives cannot be easily detected in the industry at present, the physical property verification of copper foil 2 is generally carried out at the beginning of startup.

[0047] See also Figure 4 and Figure 5 It can be seen that in this embodiment, a cutter 3 is placed near the edge of the copper foil 2. When the copper foil 2 is pulled and rolled on the copper foil winding roller 1, the edge of the copper foil 2 is cut by the cutter 3 to form ear material 4.

[0048] Then, see Figure 1 , the ear material 4 is pulled to the ear material winding roller 11 for winding. When sampling the ear material 4 is required, first, the staff needs to wrap the outer surface of the spare roller 10 with double-sided tape, and then the staff rotates the handle 8 by hand. Since the handle 8 is fixed on the rotating shaft of the turntable 5, it can drive the turntable 5 to rotate in the circumferential direction. Figure 2 At this time, the standby roller 10 has not yet contacted the ear material 4, and the ear material 4 is still rolled up on the ear material winding roller 11. Figure 3 At this time, the spare roller 10 contacts the ear material 4. At the same time, the cutter 3 is needed to disconnect the connection between the ear material 4 and the ear material winding roller 11. At this time, the ear material 4 is adhered to the spare roller 10 through the double-sided tape on the spare roller 10 for winding.

[0049] Here, regarding the winding of the ear material 4, it is equivalent to switching from the ear material winding roller 11 to the spare roller 10, and the ear material 4 is always kept wound up, so it will not be rolled into the copper foil winding roller 1, and there will be no risk of foil breaking.

[0050] As a preferred implementation of this embodiment, in this embodiment, the driving device includes:

[0051] A driving motor 6 is fixed on the turntable 5;

[0052] The transmission assembly 7 is linked to the driving motor 6, and the transmission assembly 7 is used to cooperate with the driving air expansion shaft 9 and the backup roller 10 to rotate synchronously.

[0053] Then, see Figure 6 andFigure 7 It can be seen that in this embodiment, the transmission assembly 7 includes:

[0054] A driving wheel 71, linked to the driving motor 6;

[0055] The first driven wheel 72 is fixed to one end of the air shaft 9;

[0056] The second driven wheel 73 is fixed to one end of the backup roller 10;

[0057] The synchronous belt 74 is installed between the driving wheel 71 , the first driven wheel 72 and the second driven wheel 73 .

[0058] In addition, in this embodiment, the ends of the air inflation shaft 9 and the backup roller 10 are both connected to the turntable 5 through bearings.

[0059] Note that since the ends of the air inflation shaft 9 and the backup roller 10 are connected to the turntable 5 through bearings, and the air inflation shaft 9 and the backup roller 10 are light in weight, under normal circumstances, the air inflation shaft 9 and the backup roller 10 can stably maintain their positions.

[0060] The working principle of the transmission assembly 7 is as follows: the driving motor 6 works to drive the driving wheel 71 to rotate. Since the driving wheel 71, the first driven wheel 72 and the second driven wheel 73 are all mounted on the synchronous belt 74, the first driven wheel 72 and the second driven wheel 73 are driven to rotate synchronously. Since the air shaft 9 and the backup roller 10 are respectively fixed on the first driven wheel 72 and the second driven wheel 73, the first driven wheel 72 and the second driven wheel 73 are driven to rotate synchronously.

[0061] Note that in this embodiment, the driving motor 6 is equivalent to driving the air shaft 9 and the backup roller 10 to rotate simultaneously. In other embodiments, the air shaft 9 and the backup roller 10 can also be driven by separate driving motors 6. In this case, there is no need to install the transmission assembly 7.

[0062] In this embodiment, when the ear material 4 needs to be rolled up, the air-expanding shaft 9 is inflated and closely abuts against the inner wall of the ear material rolling roller 11. Therefore, when the air-expanding shaft 9 is driven to rotate, the ear material rolling roller 11 can be driven to rotate at the same time.

[0063] When it is necessary to sample the ear material 4 wound on the ear material winding roller 11 to verify its physical properties (that is, Figure 3 In the state shown in the figure, the air inflation shaft 9 needs to be deflated, at which time the ear material winding roller 11 can be removed, and the ear material 4 wound on the ear material winding roller 11 can be taken out.

[0064] More specifically, the backup roller 10 and the inflation shaft 9 are respectively located on both sides of the axis of the turntable 5 .

[0065] The sampling mechanism of a copper foil tab material of the present utility model. The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A sampling mechanism for copper foil ear materials, installed on one side of a copper foil winding roll. The copper foil winding roll is used for winding continuously conveyed copper foil, and a cutter for cutting the edge of the copper foil into ear materials is provided on the conveying path of the copper foil. It is characterized in that, The sampling mechanism includes: A mounting frame; A turntable rotatably mounted on the mounting frame through a rotating shaft. A handle is connected to the end of the rotating shaft, and the handle is used to drive the turntable to rotate; A driving device is mounted on the turntable; An air shaft, linked to the driving device; An ear material winding roller sleeved outside the air shaft for cooperating to wind the ear material; A spare roller, linked to the driving device. A glue layer is provided outside the spare roller, and the spare roller and the air shaft are arranged at intervals.

2. The sampling mechanism for a copper foil tab material according to claim 1, characterized in that, The driving device includes: A driving motor fixed on the turntable; A transmission component linked to the driving motor, and the transmission component is used to cooperate to drive the air shaft and the spare roller to rotate synchronously.

3. The sampling mechanism for copper foil tab stock according to claim 2, characterized in that, The transmission component includes: A driving wheel linked to the driving motor; A first driven wheel fixed at one end of the air shaft; A second driven wheel fixed at one end of the spare roller; A synchronous belt installed between the driving wheel, the first driven wheel and the second driven wheel.

4. The sampling mechanism for copper foil ear materials according to claim 3, characterized in that, The ends of the air shaft and the spare roller are respectively transferred on the turntable through bearings.

5. A sampling mechanism for a copper foil tab stock according to any one of claims 1-4, characterized in that, The spare roller and the air shaft are respectively located on both sides of the axis of the turntable.

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