A cutting knife for battery cell production

Abstract

This utility model discloses a cutting blade for battery cell production, comprising: a cutting blade body including a mounting bracket, a movable seat, a fixed seat, a guide rod, a blade auxiliary plate, an upper cutting blade, and a lower cutting blade; a drive cylinder is mounted on the upper end of the mounting bracket, and the output end of the drive cylinder is connected to the movable seat; the guide rod is located in the middle of the mounting bracket and the fixed seat; and an assembly assembly is set at the connection between the blade auxiliary plate and the upper and lower cutting blades. This invention solves the problem that traditional cutting blades often use a multi-bolt fixing structure, requiring operators to use special tools to symmetrically and alternately tighten multiple sets of bolts to install or remove the blade. Frequent bolt tightening operations lead to accelerated thread wear, reduced service life, and easy stripping of threads. Furthermore, uneven force on multiple bolts can easily cause micro-vibration of the cutting surface, affecting the consistency of electrode cut quality.

Description

Technical Field

[0001] This utility model relates to the field of battery cell production technology, and in particular to a cutting knife for battery cell production. Background Technology

[0002] In the manufacturing process of lithium-ion battery cells, the cutting blade is the core component of the electrode slitting process, and its replacement efficiency directly affects the production rhythm.

[0003] Traditional cutting blades often use a multi-bolt fixing structure, requiring operators to use special tools to symmetrically and alternately tighten multiple sets of bolts to install or remove the blade. This fixing method has certain shortcomings in practical applications: First, frequent bolt tightening operations accelerate thread wear, reduce service life, and easily cause stripping; second, uneven force on multiple bolts can easily cause micro-vibration of the cutting surface, affecting the consistency of electrode cut quality. Utility Model Content

[0004] This utility model provides a cutting blade for battery cell production, which solves the problem that traditional cutting blades mostly use a multi-bolt fixing structure, requiring operators to use special tools to symmetrically and alternately tighten multiple sets of bolts to complete the installation or removal of the blade. This fixing method has certain shortcomings in practical applications: First, frequent bolt tightening operations lead to accelerated thread wear, reducing service life, and are also prone to stripping; Second, uneven force on multiple bolts can easily cause micro-vibration of the cutting surface, affecting the consistency of electrode cut quality.

[0005] This utility model provides a cutting blade for battery cell production, comprising:

[0006] The main body of the cutting blade includes a mounting bracket, a movable seat, a fixed seat, a guide rod, a blade auxiliary plate, an upper cutting blade, and a lower cutting blade. A drive cylinder is mounted on the upper end of the mounting bracket, and the output end of the drive cylinder is connected to the movable seat. The guide rod is located in the middle of the mounting bracket and the fixed seat.

[0007] The assembly component, located at the connection between the blade auxiliary plate and the upper and lower cutting blades, includes a retaining sleeve with a fixing pin installed at one end. The bottom of the fixing pin has a positioning groove. The upper and lower cutting blades each have a moving hole in the middle. The movable seat, the fixed seat, and the blade auxiliary plate each have an auxiliary hole in the middle. A support plate is fixedly connected to one side of the movable seat and the fixed seat, and a sliding hole is provided in the middle of the support plate. A positioning plate is provided at the upper end of the support plate, and a sliding rod is connected to the bottom of the positioning plate. A linkage plate is provided at the bottom of the sliding rod.

[0008] In a cutting knife for battery cell production according to one embodiment of the present invention, the mounting bracket and the driving cylinder are connected by bolts, and the middle of the movable seat is provided with guide holes that are adapted to the guide rods.

[0009] In a cutting blade for battery cell production according to one embodiment of the present invention, the fixed base and the guide rod are fixedly connected, and there are two sets of blade auxiliary plates that are symmetrically distributed. The two sets of blade auxiliary plates are respectively connected to the movable base and the fixed base.

[0010] In a cutting knife for battery cell production according to one embodiment of the present invention, the sleeve and the fixing pin are an integral structure, the number of fixing pins is several groups and they are distributed in an array, and the fixing pins are cylindrical structures, and the ends of the several groups of fixing pins are all provided with rounded corners.

[0011] In a cutting blade for battery cell production according to one embodiment of the present invention, the positioning groove is a rectangular structure, and the fixing pin is adapted to both the moving hole and the auxiliary hole.

[0012] In a cutting blade for battery cell production according to one embodiment of the present invention, the number of support plates is two sets and they are symmetrically distributed. The two sets of support plates are fixedly connected to the movable seat and the fixed seat, respectively.

[0013] In a cutting blade for battery cell production according to one embodiment of the present invention, the auxiliary slide is a rectangular structure, and there are four sets of auxiliary slides that are symmetrically distributed. The auxiliary slides are located at the inner edges of the movable seat and the fixed seat.

[0014] In a cutting blade for battery cell production according to one embodiment of the present invention, an auxiliary slider adapted to the auxiliary slide groove is fixedly connected to the outer side of the positioning plate, and the number of auxiliary sliders is equal to the number of auxiliary slide grooves.

[0015] In a cutting knife for battery cell production according to one embodiment of the present invention, a rounded corner is provided on one side edge of the positioning plate, the sliding rod and the sliding hole are adapted to each other and the number of the two is equal, the linkage plate and the sliding rod are fixedly connected, the outer side of the sliding rod is wrapped with a support spring, and the two ends of the support spring are respectively connected to the positioning plate and the support plate.

[0016] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a cutting blade for battery cell production, which can solve the problem that traditional cutting blades mostly adopt a multi-bolt fixing structure, requiring operators to use special tools to symmetrically and alternately tighten multiple sets of bolts to complete the installation or removal of the blade; this fixing method has certain shortcomings in practical applications: First, frequent bolt tightening operations lead to accelerated thread wear, reducing service life, and are also prone to stripping; Second, uneven force on multiple bolts can easily cause micro-vibration of the cutting surface, affecting the consistency of electrode cutting quality.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a cutting blade for battery cell production according to an embodiment of this application;

[0020] Figure 2 yes Figure 1 A partial structural diagram of a cutting blade used in battery cell production;

[0021] Figure 3 yes Figure 1 A partial disassembly diagram of a cutting blade used in battery cell production;

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 yes Figure 3 Another perspective view;

[0024] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 yes Figure 1 A partial side sectional view of a cutting blade used in battery cell production. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figures 1 to 7As shown, this application provides a cutting blade for battery cell production, including: a cutting blade body 100, including a mounting bracket 10, a movable seat 30, a fixed seat 40, a guide rod 50, a blade auxiliary plate 60, an upper cutting blade 70, and a lower cutting blade 80. A drive cylinder 20 is mounted on the upper end of the mounting bracket 10, and the output end of the drive cylinder 20 is connected to the movable seat 30. The guide rod 50 is located in the middle of the mounting bracket 10 and the fixed seat 40; an assembly assembly 90 is disposed at the connection between the blade auxiliary plate 60 and the upper cutting blade 70 and the lower cutting blade 80, including a retainer 91. The sleeve 91 is fitted with a fixing pin 92 at one end, and a positioning groove 93 is provided at the bottom of the fixing pin 92. The upper cutting blade 70 and the lower cutting blade 80 are both provided with moving holes 94 in the middle. The movable seat 30, the fixed seat 40 and the blade auxiliary plate 60 are all provided with auxiliary holes 95 in the middle. The movable seat 30 and the fixed seat 40 are both fixedly connected to a support plate 96 on one side, and a sliding hole 97 is provided in the middle of the support plate 96. A positioning plate 99 is provided at the upper end of the support plate 96, and a sliding rod 911 is connected to the bottom of the positioning plate 99. A linkage plate 912 is provided at the bottom of the sliding rod 911.

[0030] After adopting the above technical solution, since the assembly component 90 is set at the connection between the blade auxiliary plate 60 and the upper cutting blade 70 and the lower cutting blade 80, during the installation or removal of the upper cutting blade 70 or the lower cutting blade 80, it is only necessary to manually remove the upper cutting blade 70 or the lower cutting blade 80 from one side of the blade auxiliary plate 60 through the assembly component 90. This solves the problem that traditional cutting blades mostly use a multi-bolt fixing structure, which requires operators to use special tools to symmetrically and alternately tighten multiple sets of bolts to complete the installation or removal of the blade. This fixing method has certain shortcomings in practical applications: First, frequent bolt tightening operations lead to accelerated thread wear, reduce service life, and are prone to stripping; second, uneven force on multiple bolts can easily cause micro-vibration of the cutting surface, affecting the consistency of electrode cutting quality.

[0031] It should be noted that during the disassembly of the upper cutting blade 70 or the lower cutting blade 80, the user only needs to pull the linkage plate 912, which causes the linkage plate 912 to drive several sets of sliding rods 911 to move downward along the inside of the sliding hole 97, and at the same time drive the support spring 913 to compress, causing the positioning plate 99 to disengage from the inside of the positioning groove 93, so that the positioning plate 99 drives the auxiliary slider 910 to slide along the inside of the auxiliary sliding groove 98, thereby releasing the positioning of the fixing pin 92. Then, the sleeve 91 is pulled along the outside of the lower cutting blade 80 or the upper cutting blade 70, so that the sleeve 91 drives the fixing pin 92 to disengage from the inside of the auxiliary hole 95 and the moving hole 94, so that the lower cutting blade 80 and the upper cutting blade 70 can be automatically disassembled. The structure is simple, time-saving and labor-saving.

[0032] Similarly, when installing the upper cutting blade 70 or the lower cutting blade 80, simply align the moving hole 94 in the middle of the lower cutting blade 80 or the upper cutting blade 70 with the auxiliary hole 95 in the middle of the blade auxiliary plate 60. Then, snap the sleeve 91 onto its outer side and insert the fixing pin 92 into the interior of the moving hole 94 and the auxiliary hole 95. Next, the fixing pin 92 contacts the positioning plate 99 and presses against the rounded corners of both, causing the positioning plate 99 to drive the auxiliary slider 910 to descend along the interior of the auxiliary slide groove 98, while the slide rod 911 moves along the slide hole. The internal descent of 97 compresses the support spring 913 until the sleeve 91 completely squeezes the upper cutting blade 70 or the lower cutting blade 80. At this point, there is no gap between the upper cutting blade 70 or the lower cutting blade 80 and the sleeve 91. The positioning groove 93 is aligned with the positioning plate 99. Under the elastic potential energy of the support spring 913, the positioning plate 99 is inserted into the positioning groove 93, thereby positioning several sets of fixing pins 92 and positioning the sleeve 91. This further installs and positions the upper cutting blade 70 or the lower cutting blade 80.

[0033] In an optional embodiment, the mounting bracket 10 and the drive cylinder 20 are connected by bolts. The movable seat 30 has a guide hole in the middle that matches the guide rod 50, which facilitates the sliding of the movable seat 30 along the outside of the guide rod 50 by the drive cylinder 20, thereby driving the upper cutting blade 70 to rise and fall, which facilitates the cutting of the battery cell electrode sheet.

[0034] In an optional embodiment, the fixed base 40 and the guide rod 50 are fixedly connected, and there are two sets of blade auxiliary plates 60 that are symmetrically distributed. The two sets of blade auxiliary plates 60 are connected to the movable base 30 and the fixed base 40 respectively, so as to facilitate the auxiliary connection of the upper cutting blade 70 or the lower cutting blade 80.

[0035] In one optional embodiment, the sleeve 91 and the fixing pin 92 are an integral structure. The number of fixing pins 92 is several groups and they are arranged in an array. The fixing pins 92 are cylindrical structures, and the ends of the several groups of fixing pins 92 are all provided with rounded corners. The upper cutting blade 70 or the lower cutting blade 80 can be connected through multiple groups of fixing pins 92 to ensure the stability of its installation.

[0036] In an optional embodiment, the positioning groove 93 has a rectangular structure, and the fixing pin 92 is adapted to both the moving hole 94 and the auxiliary hole 95. The positioning plate 99 can be connected to the positioning groove 93 to position the fixing pin 92, making it convenient to insert the fixing pin 92 along the inside of the moving hole 94 and the auxiliary hole 95, and ensuring that the positioning groove 93 at the bottom of the fixing pin 92 can be inserted and positioned by the positioning plate 99.

[0037] In one optional embodiment, there are two sets of support plates 96, which are symmetrically distributed. The two sets of support plates 96 are fixedly connected to the movable seat 30 and the fixed seat 40, respectively, which can facilitate the support of the positioning plate 99, the support spring 913 and the slide rod 911.

[0038] In one optional embodiment, the auxiliary slide 98 has a rectangular structure, and there are four sets of auxiliary slides 98 that are symmetrically distributed. The auxiliary slides 98 are located at the inner edge of the movable seat 30 and the fixed seat 40, which can facilitate the auxiliary slider 910 to slide along the inside of the auxiliary slide 98 during the lifting and lowering of the positioning plate 99, thereby achieving the effect of stabilizing the lifting and lowering of the positioning plate 99.

[0039] In an optional embodiment, the positioning plate 99 has a rounded corner on one side edge, the slide rod 911 is adapted to the slide hole 97 and the number of both is equal, the linkage plate 912 is fixedly connected to the slide rod 911, the slide rod 911 is wrapped with a support spring 913, and the two ends of the support spring 913 are connected to the positioning plate 99 and the support plate 96 respectively, so that the positioning plate 99 can be compressed and stored during the descent. When the positioning plate 99 is aligned with the positioning groove 93, it can be quickly inserted into the positioning groove 93 to position the fixing pin 92 and the sleeve 91, and further install and position the lower cutting blade 80 or the upper cutting blade 70.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cutting knife for production of an electric cell, characterized by comprising: include: The main body of the cutting blade includes a mounting bracket, a movable seat, a fixed seat, a guide rod, a blade auxiliary plate, an upper cutting blade, and a lower cutting blade. A drive cylinder is mounted on the upper end of the mounting bracket, and the output end of the drive cylinder is connected to the movable seat. The guide rod is located in the middle of the mounting bracket and the fixed seat. The assembly component, located at the connection between the blade auxiliary plate and the upper and lower cutting blades, includes a retaining sleeve and an auxiliary slide groove. A fixing pin is installed at one end of the retaining sleeve, and a positioning groove is provided at the bottom of the fixing pin. A moving hole is provided in the middle of both the upper and lower cutting blades. An auxiliary hole is provided in the middle of the movable seat, the fixed seat, and the blade auxiliary plate. A support plate is fixedly connected to one side of both the movable seat and the fixed seat, and a sliding hole is provided in the middle of the support plate. A positioning plate is provided at the upper end of the support plate, and a sliding rod is connected to the bottom of the positioning plate. A linkage plate is provided at the bottom of the sliding rod.

2. The cutting blade for battery cell production according to claim 1, characterized in that, The mounting bracket is connected to the drive cylinder by bolts, and the movable seat has a guide hole in the middle that matches the guide rod.

3. The cutting blade for battery cell production according to claim 1, characterized in that, The fixed seat and the guide rod are fixedly connected. There are two sets of blade auxiliary plates, which are symmetrically distributed. The two sets of blade auxiliary plates are respectively connected to the movable seat and the fixed seat.

4. The cutting blade for battery cell production according to claim 1, characterized in that, The sleeve and the fixing pin are an integral structure. The number of fixing pins is several groups and they are arranged in an array. The fixing pins are cylindrical and the ends of the several groups of fixing pins are rounded.

5. A cutting blade for battery cell production according to claim 1, characterized in that, The positioning groove has a rectangular structure, and the fixing pin is compatible with both the moving hole and the auxiliary hole.

6. A cutting blade for battery cell production according to claim 1, characterized in that, The number of support plates is two sets, which are symmetrically distributed, and the two sets of support plates are fixedly connected to the movable seat and the fixed seat, respectively.

7. A cutting blade for battery cell production according to claim 1, characterized in that, The auxiliary slide is a rectangular structure, and there are four sets of auxiliary slides symmetrically distributed. The auxiliary slides are located at the inner edges of the movable seat and the fixed seat.

8. A cutting blade for battery cell production according to claim 7, characterized in that, The outer side of the positioning plate is fixedly connected with an auxiliary slider that is adapted to the auxiliary slide groove, and the number of auxiliary sliders is equal to the number of auxiliary slide grooves.

9. A cutting blade for battery cell production according to claim 1, characterized in that, The positioning plate has a rounded corner on one side edge. The sliding rod and the sliding hole are matched and the number of the two is equal. The linkage plate and the sliding rod are fixedly connected. The outer side of the sliding rod is wrapped with a support spring, and the two ends of the support spring are connected to the positioning plate and the support plate respectively.

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