Slide making system

Abstract

The utility model discloses a flaking system which comprises a material belt input assembly, a tab cutting assembly and a pole piece cutting assembly, and the tab cutting assembly is distributed between the material belt input assembly and the pole piece cutting assembly. Wherein the material belt input assembly comprises a pole piece reel wound with a material belt, the pole lug cutting assembly is provided with a first laser used for cutting a pole lug, the pole piece cutting assembly is provided with a second laser used for cutting a pole piece, a first deviation rectifying assembly is arranged between the material belt input assembly and the pole lug cutting assembly, and a second deviation rectifying assembly is arranged between the material belt input assembly and the pole lug cutting assembly. And a second deviation rectifying assembly is arranged between the pole lug cutting assembly and the pole piece cutting assembly. According to the pole piece production system, the material belt input assembly, the pole lug cutting assembly and the pole piece cutting assembly are connected and used in a matched mode, pole piece production is achieved, the pole lugs are cut through the first laser device, the pole pieces are cut through the second laser device, and the pole piece production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a film making system. Background Art

[0002] With the strong support and promotion of the country, the new energy industry has developed rapidly and has become one of the country's pillar industries. As a key component of the new energy industry, lithium batteries have assumed most of the responsibilities of energy storage in the country's new energy strategy due to their advantages such as strong energy storage capacity, no memory, multiple charge and discharge times, and recyclability.

[0003] At present, the production methods of lithium batteries are mainly divided into two methods: winding and lamination. Compared with winding, the battery cells produced by lamination have higher energy density and better quality. The production process, as the key to the lamination production method, largely determines the production efficiency and product quality of laminated lithium batteries. At present, the hot composite lamination method used in the industry uses a low efficiency metal cutting knife for the production of the negative electrode segment, which leads to low overall efficiency of the equipment and the efficiency has reached the extreme. The tool life is short, maintenance operation is inconvenient, and the tool change time is long. There is room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a film making system, which is easy to maintain, has a long service life, saves tool change time, improves film making efficiency and product quality, has good system stability, and has low development cost.

[0005] According to the production system of the embodiment of the utility model, it includes: a material tape input component, a pole lug cutting component and a pole piece cutting component, wherein the pole lug cutting component is distributed between the material tape input component and the pole piece cutting component; wherein the material tape input component includes a pole piece reel wound with a material tape, the pole lug cutting component is provided with a first laser for cutting the pole lug, the pole piece cutting component is provided with a second laser for cutting the pole piece, a first deviation correction component is provided between the material tape input component and the pole lug cutting component, and a second deviation correction component is provided between the pole lug cutting component and the pole piece cutting component.

[0006] According to the production system of the embodiment of the utility model, the production of pole pieces is realized by setting up the connection and cooperation of the material belt input component, the pole ear cutting component and the pole piece cutting component, and the pole ear is cut by the first laser and the pole piece is cut by the second laser, which improves the production efficiency and product quality, saves the tool changing time, and has convenient system maintenance, long service life, good system stability and low development cost.

[0007] According to the film production system of some embodiments of the present invention, a first dust removal assembly is provided between the material belt input assembly and the first deviation correcting assembly, and a second dust removal assembly is provided between the tab cutting assembly and the second deviation correcting assembly.

[0008] According to the film-making system of some embodiments of the utility model, a first tension swing roller is provided between the material belt input component and the first dust removal component, and a second tension swing roller is provided between the second dust removal component and the second deviation correction component;

[0009] An iron removal and deionization air component is provided between the material belt input component and the first tension swing roller.

[0010] According to the film-making system of some embodiments of the utility model, a color mark sensor and a tab reinforcement structure are provided between the first tension swing roller and the first dust removal assembly;

[0011] A main driving roller group is provided between the tab cutting assembly and the second dust removal assembly. The main driving roller group includes an upper pressure roller and a lower driving roller. The material belt is passed between the upper pressure roller and the lower driving roller, and the lower driving roller is connected to a driving member.

[0012] According to the film making system of some embodiments of the present invention, a first camera is provided between the tab cutting assembly and the main driving roller group; and / or an intermediate belt platform is provided between the main driving roller group and the second dust removal assembly.

[0013] According to the film production system of some embodiments of the present invention, a first tension sensor roller is provided between the first deviation correcting assembly and the pole lug cutting assembly, and a second tension sensor roller is provided between the second deviation correcting assembly and the pole piece cutting assembly.

[0014] According to the film production system of some embodiments of the present invention, a cache roller is provided between the second deflection correcting assembly and the second tension sensor roller; a second camera is provided between the second deflection correcting assembly and the cache roller; and a third camera is provided between the second tension sensor roller and the pole piece cutting assembly.

[0015] According to the film production system of some embodiments of the present invention, the first correcting assembly and the second correcting assembly both include a correcting mechanism and a correcting sensor, the correcting mechanism is used to correct the material belt, and the correcting sensor is located downstream of the correcting mechanism and is used to detect the correction of the material belt.

[0016] According to the film making system of some embodiments of the present invention, the material tape input component includes an automatic tape splicing platform and two pole piece reels, the first deviation correction component is connected to the discharge side of the automatic tape splicing platform, the two pole piece reels are respectively wound with a group of the material tapes, and the two pole piece reels are selectively connected to the feed side of the automatic tape splicing platform.

[0017] According to the film making system of some embodiments of the utility model, an arc-shaped flattening roller, a feed deviation correction sensor and a feed splicing platform are provided in sequence between each of the pole piece reels and the automatic splicing platform, and the feed splicing platform is used to connect the material tape with the automatic splicing platform.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the process of the film-making system according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Production system 100,

[0023] Material strip input component 1, pole piece reel 11, material strip 12, pole ear cutting component 2, pole piece cutting component 3, first deviation correction component 4, deviation correction mechanism 41, deviation correction sensor 42, second deviation correction component 5, first dust removal component 6, second dust removal component 7, first tension swing roller 8, second tension swing roller 9, iron removal and deionization wind component 10, color mark sensor 13, pole ear reinforcement structure 14, main drive roller group 15, upper pressure roller 151, lower drive roller 152, first camera 16, middle connecting platform 17, first tension sensor roller 18, second tension sensor roller 19, cache roller 20, second camera 21, third camera 22, automatic connecting platform 23, arc flattening roller 24, feed deviation correction sensor 25, feed connecting platform 26, over roller 27, pressure roller 28, ultrasonic sensor and roll diameter measuring instrument 29. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference below Figure 1 Description According to the production system 100 of the embodiment of the utility model, by setting the material belt input component 1, the pole ear cutting component 2 and the pole piece cutting component 3, it is possible to realize the pole piece production process from the material belt 12 to the conveying-cutting of the pole ear-cutting of the pole piece, and a correction component is provided when cutting the pole ear and cutting the pole piece, thereby improving the production process efficiency and product quality. The whole system has a stable transportation process, convenient maintenance and a long service life.

[0028] like Figure 1 As shown, a film production system 100 according to an embodiment of the present invention includes: a material strip input component 1, a pole ear cutting component 2 and a pole piece cutting component 3.

[0029] The pole tab cutting assembly 2 is distributed between the material belt input assembly 1 and the pole piece cutting assembly 3, that is, in the production system 100, the material belt input assembly 1 is located at the front end, and the pole tab cutting assembly 2 is connected between the material belt input assembly 1 and the pole piece cutting assembly 3, that is, the production of the pole piece is transported in the form of a material belt 12, the pole tab cutting is performed in the pole tab cutting assembly 2, and the pole piece cutting is performed after the pole tab cutting to complete the production of the pole piece, and after the pole piece cutting is completed, the subsequent process begins.

[0030] Among them, the material tape input component 1 includes a pole piece reel 11 on which a material tape 12 is wound. Specifically, the material tape 12 is stored in the form of a material roll. The material tape input component 1 includes the pole piece reel 11, on which the material tape 12 is wound. The pole piece reel 11 rotates in the opposite direction of the winding of the material tape 12 to slowly open the material tape 12, thereby realizing the unfolding of the material tape 12.

[0031] The pole lug cutting assembly 2 is provided with a first laser for cutting the pole lug, and the pole piece cutting assembly 3 is provided with a second laser for cutting the pole piece. Specifically, the pole lug cutting assembly 2 is provided with a first laser, and the first laser is used to emit a cutting laser beam to the material strip 12 to cut out the pole lug, and the pole piece cutting assembly 3 is provided with a second laser, and the second laser is used to emit a cutting laser beam to the material strip 12 to achieve the cutting of the pole piece. The cutting laser beam runs according to the set cutting trajectory to achieve the pole lug cutting and the pole piece cutting, and the cutting speed is fast and the precision is high, which meets the efficiency and product quality of the pole piece production.

[0032] A first deflection correcting component 4 is provided between the material strip input component 1 and the pole lug cutting component 2, and a second deflection correcting component 5 is provided between the pole lug cutting component 2 and the pole piece cutting component 3, wherein the first deflection correcting component 4 and the second deflection correcting component 5 function to correct the deflected material strip 12. The first deflection correcting component 4 is provided at the front end of the pole lug cutting component 2 to ensure that the position of the material strip 12 is accurate before the pole lug cutting, thereby improving the quality of the pole lug cutting. The second deflection correcting component 5 is provided at the front end of the pole piece cutting component 3 to ensure that the position of the material strip 12 is accurate before the pole piece cutting, thereby improving the quality of the pole lug cutting, and reducing the pole piece scrap rate.

[0033] Therefore, by setting a laser to cut the pole ear and pole piece, the production efficiency of the pole piece is high, and the production capacity of the pole piece is increased from 120PPM on a single side to 200PPM. Compared with the general hardware die-cutting method, it saves tool change time, has high cutting efficiency and high cutting yield, and the first deviation correction component 4 and the second deviation correction component 5 are provided in the transportation process, thereby ensuring the quality of the cut product, and the production system 100 is more automated, and the operation process is safe and reliable.

[0034] According to the production system 100 of the embodiment of the utility model, the production of pole pieces is realized by setting the connection and cooperation of the material belt input component 1, the pole ear cutting component 2 and the pole piece cutting component 3, and the pole ear is cut by the first laser and the pole piece is cut by the second laser, which improves the production efficiency and product quality, saves the tool changing time, and has convenient system maintenance, long service life, good system stability and low development cost.

[0035] In some embodiments, a first dust removal component 6 is provided between the material strip input component 1 and the first deviation correcting component 4 , and a second dust removal component 7 is provided between the tab cutting component 2 and the second deviation correcting component 5 .

[0036] Specifically, a first dust removal component 6 is provided at the front end of the first deviation correction component 4. The first dust removal component 6 is used to remove dust from the material belt 12 delivered by the material belt input component 1, so that there is no dust or other foreign matter around the material belt 12, which is beneficial for the first deviation correction component 4 to adjust the position of the material belt 12, so as to ensure that the material belt 12 will not be deflected during the subsequent pole ear cutting, and improve the pole ear cutting quality. A second dust removal component 7 is provided at the front end of the second deviation correction component 5. The second dust removal component 7 is used to remove dust from the material belt 12 after the pole ear cutting, so that there is no dust or other foreign matter around the material belt 12, which is beneficial for the second deviation correction component 5 to adjust the position of the material belt 12, so as to ensure that the material belt 12 will not be deflected during the subsequent pole piece cutting, and improve the pole piece cutting quality. In addition, the first dust removal component 6 and the second dust removal component 7 need to be provided on both the front and back sides of the material belt 12, and the front and back sides of the material belt 12 are dusted to ensure that the dust removal effect of the material belt 12 is better.

[0037] Among them, the first dust removal component 6 and the second dust removal component 7 generally include a motor, a centrifugal fan, a dust filter and dust collection accessories. The motor drives the centrifugal fan to rotate to inhale dust, and then the dust and other impurities are filtered by the dust collection accessories and dust filters to store them. In this way, dust removal of the material belt 12 can be achieved.

[0038] In some embodiments, a first tension swing roller 8 is provided between the material belt input component 1 and the first dust removal component 6, and a second tension swing roller 9 is provided between the second dust removal component 7 and the second deviation correction component 5. Specifically, a first tension swing roller 8 is provided at the front end of the first dust removal component 6. The first tension swing roller 8 is used to adjust the tension of the material belt 12 conveyed by the material belt input component 1, so that the surface of the material belt 12 is smooth, the conveying quality of the material belt 12 is improved, and it is beneficial to subsequent dust removal, pole ear cutting and other operations. A second tension swing roller 9 is provided between the second deviation correction component 5 and the second dust removal component 7. The second tension swing roller 9 is used to adjust the tension of the material belt 12 after the second dust removal for the pole ear cutting, so that the surface of the material belt 12 is smooth, the conveying quality of the material belt 12 is improved, and it is beneficial to subsequent deviation correction, pole piece cutting and other operations of the material belt 12.

[0039] An iron removal and deionizing wind assembly 10 is provided between the material belt input assembly 1 and the first tension swing roller 8, so that the impurity iron on the surface of the material belt 12 can be removed and the static electricity of the material belt 12 can be removed to ensure the safety of subsequent work.

[0040] Among them, the material belt 12 can be de-ironized by a de-iron remover, and the de-iron remover can generate magnetic field attraction, which can adsorb and remove ferromagnetic impurities mixed in the material belt 12 to ensure the safe and normal operation of various equipment in the production system 100, and the deionized wind component mainly includes a fan and an electrostatic generator. The electrostatic generator ionizes the air to generate a large amount of positive and negative charges. The air is driven by the fan to form an airflow of positive and negative charges, which neutralizes the positive and negative charges on the surface of the material belt 12, achieves a deionization effect, avoids static electricity pollution and damage to subsequent equipment, and improves the safety of the production system 100.

[0041] Furthermore, the iron removal and deionization wind components 10 need to be provided on both the front and back sides of the material belt 12, and iron removal and static removal are performed on both the front and back sides of the material belt 12 to ensure that iron removal and static removal of the material belt 12 are more comprehensive.

[0042] In some embodiments, a color code sensor 13 and a pole ear reinforcement structure 14 are provided between the first tension swing roller 8 and the first dust removal assembly 6. Specifically, in the flow direction of the material strip 12, the color code sensor 13 is provided at the front end of the pole ear reinforcement structure 14, wherein the color code sensor 13 has the function of detecting the color of an object, and measures and compares the color of the position to be detected on the material strip 12. When the detected color is incorrect, the material strip 12 is a defective product and can be discarded.

[0043] When the material strip 12 is conveyed to the tab reinforcement structure 14, the tab is squeezed by the rigid material to deform it, forming the tab reinforcement structure 14. During the automated production process of lithium batteries, the tab may be folded due to the force, thereby causing the material strip 12 to be scrapped. Therefore, by providing the tab reinforcement structure 14, its structural stability can be enhanced to prevent the tab from being folded during the subsequent roller 27, thereby improving production efficiency.

[0044] Furthermore, the tab reinforcement structure 14 needs to be provided on both the front and back sides of the material strip 12 , so as to strengthen both the front and back sides of the material strip 12 and ensure the structural strength of the material strip 12 .

[0045] A main drive roller group 15 is provided between the pole lug cutting assembly 2 and the second dust removal assembly 7. The main drive roller group 15 includes an upper pressure roller 151 and a lower drive roller 152. The gap between the upper pressure roller 151 and the lower drive roller 152 is used to pass the material belt 12, and the lower drive roller 152 is connected to a driving member. Specifically, the main drive roller group 15 includes an upper pressure roller 151 and a lower drive roller 152. The upper pressure roller 151 and the lower drive roller 152 are spaced apart to form a gap for passing the material belt 12, wherein the main drive roller is connected to the driving member, and the driving member can be constructed as a driving motor. The driving motor drives the main drive roller to rotate to drive the material belt 12 to move to the next process, and the main drive roller group 15 is arranged behind the pole lug cutting assembly 2. After the pole lug cutting is completed, the material belt 12 is transported to the next workstation through the main drive roller group 15 to achieve smooth transportation of the material belt 12.

[0046] In some embodiments, a first camera 16 is provided between the tab cutting assembly 2 and the main driving roller group 15. The first camera 16 has a photo taking and scanning function and is used to detect the tab cutting. The first camera 16 is provided above the material strip 12. When the tab cutting is completed and conveyed to the first camera 16, the first camera 16 can detect the tab cutting situation by taking pictures or scanning. If the detection is qualified, the material strip 12 flows to the next station. If the detection is unqualified, it can be discarded. At the same time, the tab missing processing phenomenon can be detected to improve the quality of the material strip 12 flowing to the next station.

[0047] And / or, an intermediate conveying platform 17 is provided between the main driving roller group 15 and the second dust removal component 7, wherein the structural volume of the main driving roller group 15 is relatively small. According to the space requirement, an intermediate conveying platform 17 is provided between the main driving roller group 15 and the second dust removal component 7 for realizing the conveyance of the material belt 12 between the main driving roller group 15 and the second dust removal component 7, and the length of the intermediate conveying platform along the feeding direction is relatively long, so as to facilitate the smooth conveyance of the material belt 12.

[0048] In some embodiments, a first tension sensor roller 18 is provided between the first deviation correcting assembly 4 and the pole lug cutting assembly 2 , and a second tension sensor roller 19 is provided between the second deviation correcting assembly 5 and the pole piece cutting assembly 3 , for detecting the tension of the material strip 12 and adjusting the tension of the material strip 12 .

[0049] Specifically, the first tension sensor roller 18 is disposed between the first deviation correcting assembly 4 and the tab cutting assembly 2, wherein Figure 1 As shown, a passing roller 27 is provided between the first tension sensor roller 18 and the first deviation correction component 4, which is used to realize the transmission of the material strip 12, and a pressure roller 28 is provided between the first tension sensor roller 18 and the pole tab cutting component 2, which can make the material strip 12 entering the pole tab cutting component 2 smoother, and the contact surface between the first tension sensor roller 18 and the material strip 12 protrudes from the plane where the material strip 12 is located on the passing roller 27 and the pressure roller 28, which is used to enhance the tension of the material strip 12. Therefore, the tension of the material strip 12 during the transportation process is detected by the tension sensor, and then the tension swing roller is fed back for adjustment to ensure that the tension of the material strip 12 meets the requirements, thereby providing convenience for the pole tab cutting.

[0050] In some embodiments, a cache roller 20 is provided between the second deviation correction component 5 and the second tension sensor roller 19, wherein the front material strip 12 is in a non-stop state, and plays the role of caching the material strip 12 when the laser cutting component is fixedly cut. Specifically, the conveying line structure in the cache roller 20 is U-shaped, and a passing roller 27 is provided between the cache roller 20 and the second deviation correction component 5, and a passing roller 27 is provided between the cache roller 20 and the second tension sensor roller 19 to ensure that the material strip 12 is transmitted reliably, and the material strip 12 cache is increased through the U-shaped conveyor line, and the caching form of the cache roller 20 is not limited to that described in this embodiment, and can be cached according to the pole piece cutting station and cutting rhythm to ensure uninterrupted pole piece cutting.

[0051] A second camera 21 is provided between the second deviation correction component 5 and the cache roller 20, and a third camera 22 is provided between the second tension sensor roller 19 and the pole piece cutting component 3. The first camera 16 and the second camera 21 have photo taking and scanning functions, and are used to detect whether the material strip 12 is unqualified. The second camera 21 is constructed as a line scanning camera, and the second camera 21 is provided above the material strip 12. When the material strip 12 passes through the second camera 21, the second camera 21 scans it to improve the accuracy of the detection of the material strip 12, and the third camera 22 is provided on the front side of the pole piece cutting component 3. The third camera 22 takes pictures of the material strip 12 to detect surface problems of the material strip 12 and whether the position of the pole ear is correct, so as to improve the quality of the pole piece cutting.

[0052] In some embodiments, the first deflection correction component 4 and the second deflection correction component 5 both include a deflection correction mechanism 41 and a deflection correction sensor 42. The deflection correction mechanism 41 is used to correct the material belt 12. The deflection correction sensor 42 is located downstream of the deflection correction mechanism 41 and is used to detect the deflection of the material belt 12. The deflection correction mechanism 41 can be constructed as a cylinder connected to a push plate. The deflection of the material belt 12 is adjusted by pushing the material belt 12. When the material belt 12 is conveyed and passes through the first deflection correction component 4 and the second deflection correction component 5, the deflection correction sensor 42 detects that the material belt 12 has a deviation and will feed back a signal to the deflection correction mechanism 41. The deviation of the material belt 12 is adjusted by the deflection correction mechanism 41. The deflection correction sensor 42 is arranged downstream of the deflection correction mechanism 41. Through the adjustment of the deflection correction mechanism 41, the subsequently transmitted material belt 12 will not be deflected, so as to ensure the accuracy of the pole piece cutting and avoid the problem of tilted pole piece cutting in advance.

[0053] In some embodiments, the material tape input component 1 includes an automatic tape splicing platform 23 and two pole piece reels 11, the first correction component 4 is connected to the discharge side of the automatic tape splicing platform 23, the two pole piece reels 11 are respectively wound with a group of material tapes 12, and the two pole piece reels 11 are selectively connected to the feeding side of the automatic tape splicing platform 23.

[0054] Specifically, the material tape input component 1 mainly includes an automatic tape splicing platform 23 and two pole piece reels 11, wherein the first correction component 4 is connected to the discharge side of the automatic tape splicing platform 23, and the feed side of the automatic tape splicing platform 23 is selectively connected to the two pole piece reels 11 respectively, so that the material tape 12 on one of the pole piece reels 11 is used as a cache material tape 12, and the automatic tape splicing platform 23 is first connected to a group of material tapes 12. When the material tape 12 is used up, the automatic tape splicing platform 23 is connected to another group of material tapes 12, which can ensure the continuous input of the material tape 12, thereby not affecting the production capacity of the pole piece.

[0055] like Figure 1 As shown, an iron removal and deionization wind component 10, a first tension swing roller 8, a passing roller 27, a color mark sensor 13, a pole ear reinforcement structure 14 and a first dust removal component 6 are sequentially provided between the automatic splicing platform 23 and the first deviation correction component 4. In this way, after the material belt 12 passes through the automatic splicing platform 23, the material belt 12 is sequentially subjected to static electricity removal, tension adjustment, color mark detection, pole ear reinforcement structure 14 setting and dust removal, and then enters the first deviation correction component 4 to correct the deviation of the material belt 12. This series of processes can ensure the smooth operation of the material belt 12 and the quality requirements of the material belt 12, which is beneficial to the subsequent pole ear cutting and pole piece cutting.

[0056] In some embodiments, an arc-shaped flattening roller 24, a feed deviation correction sensor 25 and a feed splicing platform 26 are provided in sequence between each pole piece reel 11 and the automatic splicing platform 23. The feed splicing platform 26 is used to dock the material tape 12 with the automatic splicing platform 23.

[0057] Specifically, an arc-shaped flattening roller 24, a feed correction sensor 25, a feed splicing platform 26 and a passing roller 27 are provided in sequence between each pole piece reel 11 and the feeding side of the automatic splicing platform 23, wherein the feed splicing platform 26 conveys the material strip 12 smoothly and docks it with the feeding side of the automatic splicing platform 23. Thus, after the material strip 12 is rotated and unfolded by the pole piece reel 11, it passes through the arc-shaped flattening roller 24, the splicing platform and the passing roller 27 in sequence, and can be flattened and conveyed to the automatic splicing platform 23 in sequence, and the automatic splicing platform 23 conveys the material strip 12 to the subsequent process.

[0058] Among them, a material feeding correction sensor 25 is arranged on the rear side of the arc-shaped flattening roller 24, which can detect the unwinding deviation of the pole piece reel 11, and feed back the detection signal to the pole piece reel 11 for overall correction, and ultrasonic sensors and reel diameter measuring instruments 29 are respectively arranged on the outer sides of the two groups of material tapes 12, which can be used to measure the reel diameter of the material tape 12. When the material tape 12 is used up, a signal is sent to prompt the user to replace the material roll to ensure the efficiency of pole piece production.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A film making system, It is characterized in that include: A material strip input component, a pole tab cutting component and a pole piece cutting component, wherein the pole tab cutting component is distributed between the material strip input component and the pole piece cutting component; Among them, the material strip input component includes a pole piece reel with a material strip wound on it, the pole tab cutting component is provided with a first laser for cutting the pole tab, the pole piece cutting component is provided with a second laser for cutting the pole piece, a first correcting component is provided between the material strip input component and the pole tab cutting component, and a second correcting component is provided between the pole tab cutting component and the pole piece cutting component.

2. The film making system according to claim 1, It is characterized in that A first dust removal assembly is provided between the material strip input assembly and the first deviation correcting assembly, and a second dust removal assembly is provided between the tab cutting assembly and the second deviation correcting assembly.

3. The film making system according to claim 2, It is characterized in that A first tension swing roller is provided between the material belt input assembly and the first dust removal assembly, and a second tension swing roller is provided between the second dust removal assembly and the second deviation correction assembly; An iron removal and deionization air component is provided between the material belt input component and the first tension swing roller.

4. The film making system according to claim 3, It is characterized in that A color mark sensor and a tab reinforcement structure are provided between the first tension swing roller and the first dust removal assembly; A main driving roller group is provided between the tab cutting assembly and the second dust removal assembly. The main driving roller group includes an upper pressure roller and a lower driving roller. The material belt is passed between the upper pressure roller and the lower driving roller, and the lower driving roller is connected to a driving member.

5. The film making system according to claim 4, It is characterized in that A first camera is provided between the tab cutting assembly and the main driving roller assembly; And / or, an intermediate belt platform is provided between the main driving roller group and the second dust removal assembly.

6. The film making system according to claim 1, It is characterized in that A first tension sensor roller is provided between the first deviation correcting assembly and the pole lug cutting assembly, and a second tension sensor roller is provided between the second deviation correcting assembly and the pole piece cutting assembly.

7. The film making system according to claim 6, It is characterized in that A buffer roller is provided between the second deviation correcting assembly and the second tension sensor roller; A second camera is provided between the second deviation-correcting component and the buffer roller; A third camera is provided between the second tension sensor roller and the pole piece cutting assembly.

8. The film making system according to claim 1, It is characterized in that The first deflection-correcting component and the second deflection-correcting component both include a deflection-correcting mechanism and a deflection-correcting sensor. The deflection-correcting mechanism is used to correct the deflection of the material strip. The deflection-correcting sensor is located downstream of the deflection-correcting mechanism and is used to detect the deflection of the material strip.

9. The film making system according to claim 1, It is characterized in that The material tape input component includes an automatic tape splicing platform and two pole piece reels. The first deviation correction component is connected to the discharge side of the automatic tape splicing platform. The two pole piece reels are respectively wound with a group of the material tapes. The two pole piece reels are selectively connected to the feed side of the automatic tape splicing platform.

10. The film making system according to claim 9, It is characterized in that An arc-shaped flattening roller, a feed deviation correction sensor and a feed tape splicing platform are arranged in sequence between each of the pole piece reels and the automatic tape splicing platform. The feed tape splicing platform is used to connect the material tape with the automatic tape splicing platform.

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