Automatic tape splicing device for coating of pole piece

Abstract

The utility model provides an automatic tape splicing device for pole piece coating, and relates to the technical field of pole piece coating. The device comprises a shell, wherein the shell is provided with an accommodating cavity for accommodating a target pole piece; the belt connecting device comprises a first belt connecting device and a second belt connecting device, the first belt connecting device and the second belt connecting device are located in the containing cavity, the target pole piece is located between the first belt connecting device and the second belt connecting device, and at least one of the first belt connecting device and the second belt connecting device comprises a moving assembly and a driving assembly; the moving assembly is slidably arranged along the inner wall of the shell; and the moving assembly is connected with the heat sealing assembly, the moving assembly is provided with a working position for moving the heat sealing assembly to the breaking position of the target pole piece, and the heat sealing assembly conducts heat sealing on the breaking position. In this way, the target pole piece is connected by adjusting the position of the belt connecting device at the belt breaking position, and the connectivity of the pole piece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece coating, in particular to an automatic pole piece coating tape splicing device. Background Art

[0002] With the shortage of traditional energy and the rapid development of new energy vehicles in China, the development of new energy is inseparable from the development of lithium-ion batteries. At present, there are four major steps in the production process of lithium-ion batteries, namely pulping and coating, film making, assembly, and chemical composition. Among them, pulping and coating are the key steps that determine the quality of subsequent battery production. Among them, coating is the key process for making pole pieces. During the coating process, it is easy to cause tape breakage in the baking oven. The temperature in the baking oven is high, and the pole piece needs to be put back to the unwinding position, resulting in a decrease in the oven temperature. It takes time for the oven to reheat. This proposal adds an automatic tape splicing device to the oven device, which automatically splices the tape inside the oven, reduces the decrease in the yield of the coating process caused by tape breakage during coating, and improves coating production efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic tape splicing device for coating pole pieces, so as to solve the problem in the prior art that the coating tape of the pole pieces is broken, resulting in a decrease in the yield of the coating process.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, there is provided an automatic splicing device for coating an electrode, comprising: a shell, the shell having an accommodating cavity for accommodating a target electrode; a splicing device, the splicing device comprising a first splicing device and a second splicing device, the first splicing device and the second splicing device are located in the accommodating cavity, the target electrode is located between the first splicing device and the second splicing device, at least one of the first splicing device and the second splicing device comprises: a moving component, the moving component is slidably arranged along the inner wall of the shell; a heat sealing component, the moving component is connected to the heat sealing component, the moving component has a working position for moving the heat sealing component to the disconnected position of the target electrode, and the heat sealing component performs heat sealing at the disconnected position.

[0005] Furthermore, the heat sealing assembly includes: a lifting part, which is connected to the moving assembly and can be lifted and lowered along the height direction of the moving assembly; and a clamp part, which is arranged on the lifting part and is arranged toward the direction of the target pole piece.

[0006] Furthermore, the clamping part includes: at least two clamping rods, one end of at least two clamping rods is connected to the lifting part, and at least two clamping rods have a working position for clamping the target pole piece to be disconnected; at least two heating blocks, each heating block is arranged at the other end of each clamping rod to heat seal the disconnected position of the target pole piece.

[0007] Furthermore, the lifting part includes: a first lifting part, one end of which is connected to the moving component; a second lifting part, one end of which is connected to the moving component, the second lifting part is located above the first lifting part, the first lifting part and the second lifting part are arranged opposite to each other along the height direction of the moving component, and the first lifting part and the second lifting part are slidably arranged along the side wall of the moving component.

[0008] Furthermore, the heat sealing assembly also includes: a traction fixing part, which is arranged on the lifting part, the traction fixing part is arranged opposite to the clamp part, the traction fixing part is arranged in the direction of the target pole piece, and the traction fixing part is used to fix the target pole piece at the disconnected position.

[0009] Furthermore, the first lifting part includes: a first drag plate, the bottom of which is slidably connected to the moving component; a second drag plate, the second drag plate is connected to the top of the first drag plate at an angle, and at least two clamping rods of the clamping part are arranged on the second drag plate, which control the lifting and lowering of the first lifting part to drive at least two clamping rods to move to the target pole piece disconnection position.

[0010] Furthermore, the second lifting part includes: a third drag plate, the bottom of the third drag plate is slidably connected to the moving assembly, and the third drag plate is located above the first drag plate; a fourth drag plate, the fourth drag plate is arranged at an angle to the top of the third drag plate, and a traction fixing part is arranged on the fourth drag plate.

[0011] Furthermore, the traction fixing part includes: a plurality of traction rods, the plurality of traction rods are fixed on the fourth drag plate, and the plurality of traction rods are arranged along the width direction of the shell; and a plurality of fixing blocks, each fixing block is connected to each traction rod.

[0012] Furthermore, the moving assembly includes: a moving block, one end of which is slidably connected to the inner wall of the shell; a connecting plate, the other end of the moving block is connected to the connecting plate, and the connecting plate is slidably connected to the first drag plate and the third drag plate.

[0013] Furthermore, sliding rails are respectively arranged on the inner walls at the two opposite ends of the shell, one of the sliding rails is connected to the first belt connecting device, and the other sliding rail is connected to the second belt connecting device.

[0014] By applying the technical solution of the utility model, a first tape splicing device and a second tape splicing device are provided, and both the first tape splicing device and the second tape splicing device include a moving component and a heat sealing component. The moving component and the heat sealing component cooperate with each other to perform heat sealing splicing on the disconnected position of the target pole piece, that is, the position of the tape splicing device is adjusted at the broken position to splice the target pole piece, thereby ensuring the connectivity of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The schematic diagram of the structure of the automatic tape splicing device for coating the pole piece according to the utility model is shown;

[0017] Figure 2 A schematic structural diagram of a first tape splicing device of an automatic tape splicing device for coating a pole piece according to the utility model is shown;

[0018] Figure 3 The schematic structural diagram of the second tape splicing device of the automatic tape splicing device for coating pole pieces according to the utility model is shown.

[0019] The above drawings include the following reference numerals:

[0020] 1. Shell; 11. Sliding track;

[0021] 2. Target pole piece;

[0022] 3. The first belt connecting device;

[0023] 31. moving assembly; 311. moving block; 312. connecting plate;

[0024] 32, heat sealing assembly; 321, lifting part; 3211, first lifting part; 3212, second lifting part; 3213, first carriage; 3214, second carriage; 3215, third carriage; 3216, fourth carriage; 322, clamping part; 3221, clamping rod; 3222, heating block; 323, traction fixing part; 3231, traction rod; 3232, fixing block;

[0025] 4. The second belt connecting device. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0030] It should be noted that the coating device of the pole piece is a device used to coat the material on the surface of the pole piece. The device is usually composed of a coating roller, a coating trough, a conveyor belt and an adjustment device. During operation, the pole piece is placed on the conveyor belt, passes through the coating trough, and the coating roller evenly coats the coating on the surface of the pole piece. The adjustment device can adjust the coating thickness and speed to ensure the coating quality and consistency. This device is usually used to produce pole pieces in batteries, LCD displays and other electronic products.

[0031] The pole piece may break during the coating process. The breakage may be caused by the following reasons: 1. Poor material quality: The pole piece material may have quality problems, such as insufficient material strength or internal defects, which may cause it to break easily during the coating process. 2. Poor coating process: During the coating process, improper operation of the coating machine or excessive coating pressure may cause the pole piece to break. 3. Excessive temperature: Excessive temperature during the coating process may also cause the pole piece to break, because high temperature will make the pole piece material brittle and prone to breakage. 4. Equipment problem: There are problems with the coating equipment itself, such as damage or unevenness of the coating roller, which may cause the pole piece to break during the coating process.

[0032] Combination Figures 1 to 3 As shown, according to a specific embodiment of the utility model, an automatic tape-splicing device for coating pole pieces is provided.

[0033] Specifically, Figure 1 As shown, the automatic splicing device for coating the electrode piece comprises: a shell 1, the shell 1 has an accommodating cavity for accommodating the target electrode piece 2; a splicing device, the splicing device comprises a first splicing device 3 and a second splicing device 4, the first splicing device 3 and the second splicing device 4 are located in the accommodating cavity, the target electrode piece 2 is located between the first splicing device 3 and the second splicing device 4, at least one of the first splicing device 3 and the second splicing device 4 comprises: a moving component 31, the moving component 31 is slidably arranged along the inner wall of the shell 1; a heat sealing component 32, the moving component 31 is connected to the heat sealing component 32, the moving component 31 has a working position for moving the heat sealing component 32 to the disconnected position of the target electrode piece 2, and the heat sealing component performs heat sealing on the disconnected position.

[0034] In the present embodiment, a first connecting device and a second connecting device are provided, and both the first connecting device and the second connecting device include a moving component 31 and a heat sealing component 32. The moving component 31 and the heat sealing component 32 cooperate with each other to perform heat sealing connection on the disconnected position of the target pole piece 2, that is, the position of the connecting device is adjusted at the broken position to connect the target pole piece, thereby ensuring the connectivity of the pole piece.

[0035] Further, the heat sealing assembly 32 includes: a lifting part 321, which is connected to the moving assembly 31 and is arranged to be liftable along the height direction of the moving assembly 31; and a clamp part 322, which is arranged on the lifting part 321 and is arranged toward the target pole piece 2. Such an arrangement enables the lifting part 321 to drive the clamp part 322 to move to the disconnected position of the target pole piece 2, so as to perform heat sealing treatment on the disconnected position of the target pole piece 2 through the clamp part 322 to achieve tape splicing.

[0036] Furthermore, the clamping part 322 includes: at least two clamping rods 3221, one end of at least two clamping rods 3221 is connected to the lifting part 321, and at least two clamping rods 3221 have a working position for clamping the target pole piece 2 for disconnection; at least two heating blocks 3222, each heating block 3222 is arranged at the other end of each clamping rod 3221, so as to heat-seal the disconnected position of the target pole piece 2. Such a structure is simple, and the heating block 3222 on the clamping rod 3221 is close to the disconnected position of the target pole piece 2 through the clamping rod 3221. The temperature of the heating block 3222 is 150℃-200℃, and the connection can be performed at the pole ear position of the two pole pieces, which is similar to heat sealing, thereby ensuring the connectivity of the pole pieces.

[0037] Further, the lifting part 321 includes: a first lifting part 3211, one end of which is connected to the moving component 31; a second lifting part 3212, one end of which is connected to the moving component 31, and the second lifting part 3212 is located above the first lifting part 3211, the first lifting part 3211 and the second lifting part 3212 are arranged opposite to each other along the height direction of the moving component 31, and the first lifting part 3211 and the second lifting part 3212 are slidably arranged along the side wall of the moving component 31. Such an arrangement enables the lifting part 321 to drive the clamp part 322 to move its position. Specifically, the width of the first lifting part 3211 and the second lifting part 3212 is 40 cm to 50 cm.

[0038] Furthermore, the heat sealing assembly 32 also includes: a traction fixing part 323, which is arranged on the lifting part 321, the traction fixing part 323 is arranged opposite to the clamp part 322, the traction fixing part 323 is arranged in the direction of the target pole piece 2, and the traction fixing part 323 is used to fix the target pole piece 2 at the disconnected position.

[0039] Further, the first lifting part 3211 includes: a first carriage 3213, the bottom of which is slidably connected to the moving assembly 31; a second carriage 3214, the second carriage 3214 is connected to the top of the first carriage 3213 at an angle, and at least two clamping rods 3221 of the clamping part 322 are arranged on the second carriage 3214, and the first lifting part 3211 is controlled to be lifted and lowered to drive at least two clamping rods 3221 to move to the disconnection position of the target pole piece 2. The second lifting part 3212 includes: a third carriage 3215, the bottom of which is slidably connected to the moving assembly 31, and the third carriage 3215 is located above the first carriage 3213; and a fourth carriage 3216, the fourth carriage 3216 is arranged at an angle to the top of the third carriage 3215, and the fourth carriage 3216 is provided with a traction fixing part 323. This arrangement allows the clamping rod 3221 on the first lifting part 3211 and the traction fixing part 323 on the second lifting part 3212 to move positions simultaneously, so that when the traction fixing part fixes the disconnected position of the target pole piece, the heating block 3222 on the clamping rod 3221 performs heat sealing treatment on the disconnected position of the target pole piece.

[0040] Furthermore, the traction fixing part 323 includes: a plurality of traction rods 3231, which are fixed on the fourth drag plate 3216 and arranged along the width direction of the housing 1; and a plurality of fixing blocks 3232, each of which is connected to each traction rod 3231. Specifically, the traction rod 3231 is 20 cm long and made of ceramic.

[0041] Furthermore, the moving assembly 31 includes: a moving block 311, one end of which is slidably connected to the inner wall of the shell 1; a connecting plate 312, the other end of the moving block 311 is connected to the connecting plate 312, and the connecting plate 312 is slidably connected to the first drag plate 3213 and the third drag plate 3215.

[0042] Furthermore, sliding rails 11 are respectively arranged on the inner walls at opposite ends of the housing 1, one of the sliding rails 11 is connected to the first belt connecting device 3, and the other sliding rail 11 is connected to the second belt connecting device 4. This arrangement enables the belt connecting device to be freely adjusted in the left-right direction in the housing 1.

[0043] According to another aspect of the utility model, an oven is provided, which comprises an automatic coating and tape splicing device.

[0044] During the electrode coating production process, the electrode enters the oven from the electrode entrance. Sometimes, the tape may break inside the oven due to temperature difference or uneven force. When rewinding and unwinding or opening the oven for tape connection, it often wastes time. The temperature of the electrode is lowered at this time, and the temperature rises again when the electrode re-enters the oven during coating. The broken tape abnormality greatly reduces the production efficiency of the coating process.

[0045] The utility model can freely adjust the position in the oven. When the electrode is broken inside the oven, the heat sealing assembly 32 is moved to the position where the electrode is broken by the moving block 311. The operator unwinds the electrode on the coating machine head until it overlaps with the previous electrode, and then uses the heating block 3222 of the clamp part 322 through the lifting part 321 to connect the two sections of the electrode, thereby ensuring the connectivity of the electrode, and then transports the electrode to the electrode outlet through normal experiments.

[0046] The beneficial effects of the utility model are as follows: 1. It reduces the operation time of the electrode piece in the oven due to the broken tape. 2. It reduces the production energy consumption of the oven heating and cooling. 3. It eliminates the safety hazards caused by manual operation and improves the production efficiency of the battery coating process.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0049] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic tape splicing device for coating a pole piece, characterized in that: include: A housing (1), the housing (1) having a receiving cavity for receiving a target pole piece (2); A connecting device, the connecting device comprising a first connecting device (3) and a second connecting device (4), the first connecting device (3) and the second connecting device (4) are located in the accommodating cavity, the target pole piece (2) is located between the first connecting device (3) and the second connecting device (4), at least one of the first connecting device (3) and the second connecting device (4) comprises: A moving component (31), the moving component (31) being slidably arranged along the inner wall of the housing (1); A heat sealing component (32), wherein the moving component (31) is connected to the heat sealing component (32), and the moving component (31) has a working position for moving the heat sealing component (32) to a disconnected position of the target electrode (2), and the heat sealing component performs heat sealing on the disconnected position.

2. The automatic tape-splicing device for coating a pole piece according to claim 1, characterized in that: The heat sealing assembly (32) comprises: A lifting part (321), the lifting part (321) is connected to the moving component (31), and the lifting part (321) is arranged to be liftable along the height direction of the moving component (31); A clamping part (322), wherein the clamping part (322) is arranged on the lifting part (321), and the clamping part (322) is arranged in the direction of the target pole piece (2).

3. The automatic tape-splicing device for coating pole pieces according to claim 2, characterized in that: The clamp portion (322) comprises: at least two clamping rods (3221), one end of each of the at least two clamping rods (3221) being connected to the lifting portion (321), and at least two of the clamping rods (3221) having a working position for clamping the target pole piece (2) to be disconnected; At least two heating blocks (3222), each of the heating blocks (3222) is arranged at the other end of each of the clamping rods (3221) to heat-seal the disconnected position of the target pole piece (2).

4. The automatic tape-splicing device for coating pole pieces according to claim 3, characterized in that: The lifting part (321) comprises: A first lifting part (3211), one end of the first lifting part (3211) being connected to the moving component (31); A second lifting part (3212), one end of the second lifting part (3212) is connected to the moving component (31), the second lifting part (3212) is located above the first lifting part (3211), the first lifting part (3211) and the second lifting part (3212) are arranged opposite to each other along the height direction of the moving component (31), and the first lifting part (3211) and the second lifting part (3212) are slidably arranged along the side wall of the moving component (31).

5. The automatic tape-splicing device for coating pole pieces according to claim 4, characterized in that: The heat sealing assembly (32) further comprises: A traction fixing portion (323), wherein the traction fixing portion (323) is arranged on the lifting portion (321), the traction fixing portion (323) is arranged opposite to the clamp portion (322), the traction fixing portion (323) is arranged in the direction of the target pole piece (2), and the traction fixing portion (323) is used to fix the target pole piece (2) at a disconnected position.

6. The automatic tape-splicing device for coating pole pieces according to claim 5, characterized in that: The first lifting part (3211) comprises: A first drag plate (3213), the bottom of which is slidably connected to the moving assembly (31); The second carriage (3214) is connected to the top of the first carriage (3213) at an angle, and the at least two clamping rods (3221) of the clamping part (322) are arranged on the second carriage (3214), and the first lifting part (3211) is controlled to be lifted and lowered to drive the at least two clamping rods (3221) to move to the disconnection position of the target pole piece (2).

7. The automatic tape-splicing device for coating pole pieces according to claim 6, characterized in that: The second lifting part (3212) comprises: a third carriage (3215), the bottom of the third carriage (3215) being slidably connected to the moving assembly (31), and the third carriage (3215) being located above the first carriage (3213); A fourth carriage (3216), wherein the fourth carriage (3216) is arranged at an angle with the top of the third carriage (3215), and the traction fixing portion (323) is arranged on the fourth carriage (3216).

8. The automatic tape-splicing device for coating pole pieces according to claim 7, characterized in that: The traction fixing part (323) comprises: a plurality of traction rods (3231), wherein the plurality of traction rods (3231) are fixed on the fourth drag plate (3216), and the plurality of traction rods (3231) are arranged along the width direction of the shell (1); A plurality of fixing blocks (3232), each of the fixing blocks (3232) is connected to each of the traction rods (3231).

9. The automatic tape-splicing device for coating pole pieces according to claim 7, characterized in that: The moving component (31) comprises: A moving block (311), one end of the moving block (311) being slidably connected to the inner wall of the shell (1); A connecting plate (312), the other end of the moving block (311) is connected to the connecting plate (312), and the connecting plate (312) is slidably connected to the first drag plate (3213) and the third drag plate (3215).

10. The automatic tape-splicing device for coating pole pieces according to claim 1, characterized in that: Sliding rails (11) are respectively provided on the inner walls at the two opposite ends of the shell (1), one of the sliding rails (11) is connected to the first belt connecting device (3), and the other sliding rail (11) is connected to the second belt connecting device (4).

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