Dry-method electrode powder traction extrusion film forming control method and system and storage medium

Abstract

The invention discloses a dry-method electrode powder traction extrusion film forming control method and system and a storage medium, and the method comprises the steps that an extruder main body is controlled to extrude powder from a first inlet to a first outlet, and the extruder main body comprises the first inlet and the first outlet; an extrusion die head is controlled to extrude the powder extruded out of the first outlet to obtain an initial membrane, and the extrusion die head comprises a second inlet, a second outlet and a uniform pressure cavity; and a rolling mechanism is controlled to conduct rolling forming on the initial membrane extruded out of the second outlet so that the target membrane can be obtained, and the target membrane comprises the standard membrane. According to the film forming device, the film which is flat in texture and uniform in surface density can be obtained, secondary treatment of the film is achieved through temperature control adjustment and interval rolling, the film forming efficiency of powder can be improved, and the film quality can be improved.

Description

Technical Field

[0001] The present invention relates to the field of battery processing technology, and more specifically, to a dry electrode powder traction extrusion film forming control method, system and storage medium. Background Art

[0002] The mainstream production methods of battery electrodes include wet process and dry process, but the wet process has problems such as energy waste, high cost and environmental pollution, while the dry process has the advantages of reducing cost, inhibiting stratification, no restrictions on electrode thickness, and compatibility with sulfide solid electrolytes. Powder extrusion film formation is the core process of the process. To ensure the electrochemical performance of the electrode, it is necessary to first ensure that the physical indicators of the electrode film meet the process requirements.

[0003] The common powder extrusion film forming process is to place the hopper above the double rollers, directly pile up the feed, and roll the powder into a film by rotating the rollers. However, since the stacking height of the powder is difficult to accurately control and the time and distance of the stacked powder contacting the hot roller surface are different, the density of the film is uneven at different places, resulting in poor quality of the film. Summary of the invention

[0004] The purpose of the present invention is to provide a dry electrode powder traction extrusion film forming control method, system and storage medium, which can obtain a membrane with a flat texture and uniform surface density, and use temperature control adjustment and spacing rolling to achieve secondary processing of the membrane, which can not only improve the film forming efficiency of the powder, but also improve the quality of the membrane.

[0005] The first aspect of the present invention provides a dry electrode powder traction extrusion film forming control method, comprising the following steps: Controlling the extruder body to extrude the powder from the first inlet to the first outlet, wherein the extruder body includes the first inlet and the first outlet; Controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; The rolling mechanism is controlled to roll-form the initial film sheet extruded from the second outlet to obtain the target film sheet, wherein the target film sheet includes a standard film sheet.

[0006] In this solution, the controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

[0007] In this solution, the step of stirring and extruding the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

[0008] In this solution, the controlling the extrusion die head to extrude the powder extruded from the first outlet to obtain an initial membrane sheet specifically includes: Detecting the sealing degree of the upper die, the lower die and the uniform pressure chamber, wherein when the sealing degree meets the preset requirements, the extrusion die head is obtained; When the powder moves in the pressure-equalizing chamber and is extruded therefrom, temperature control is performed based on temperature controllers disposed in the upper die and the lower die.

[0009] In this embodiment, the second inlet is connected to the first outlet, and the powder is extruded from the first outlet and enters the second inlet corresponding to the extrusion die, and is extruded through the second outlet to obtain the initial membrane, wherein the difference between the width of the uniform pressure chamber at the second inlet and the width of the uniform pressure chamber at the second outlet is less than a specified value.

[0010] In this solution, the control rolling mechanism rolls the initial film sheet extruded from the second outlet to obtain the target film sheet, specifically including: When it is detected that the powder enters the extrusion die head, the second rotating motor is started; The second rotary motor drives two rollers at a preset distance to roll-form the initial film to obtain the target film, wherein the distance between the two rollers is adjustable.

[0011] The second aspect of the present invention further provides a dry electrode powder traction extrusion film forming control system, comprising a memory and a processor, wherein the memory comprises a dry electrode powder traction extrusion film forming control method program, and when the dry electrode powder traction extrusion film forming control method program is executed by the processor, the following steps are implemented: Controlling the extruder body to extrude the powder from the first inlet to the first outlet, wherein the extruder body includes the first inlet and the first outlet; Controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; The rolling mechanism is controlled to roll-form the initial film sheet extruded from the second outlet to obtain the target film sheet, wherein the target film sheet includes a standard film sheet.

[0012] In this solution, the controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

[0013] In this solution, the step of stirring and extruding the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

[0014] In this solution, the controlling the extrusion die head to extrude the powder extruded from the first outlet to obtain an initial membrane sheet specifically includes: Detecting the sealing degree of the upper die, the lower die and the uniform pressure chamber, wherein when the sealing degree meets the preset requirements, the extrusion die head is obtained; When the powder moves in the pressure-equalizing chamber and is extruded therefrom, temperature control is performed based on temperature controllers disposed in the upper die and the lower die.

[0015] In this embodiment, the second inlet is connected to the first outlet, and the powder is extruded from the first outlet and enters the second inlet corresponding to the extrusion die, and is extruded through the second outlet to obtain the initial membrane, wherein the difference between the width of the uniform pressure chamber at the second inlet and the width of the uniform pressure chamber at the second outlet is less than a specified value.

[0016] In this solution, the control rolling mechanism rolls the initial film sheet extruded from the second outlet to obtain the target film sheet, specifically including: When it is detected that the powder enters the extrusion die head, the second rotating motor is started; The second rotary motor drives two rollers at a preset distance to roll-form the initial film to obtain the target film, wherein the distance between the two rollers is adjustable.

[0017] The third aspect of the present invention provides a computer-readable storage medium, which includes a dry electrode powder traction extrusion film forming control method program for a machine. When the dry electrode powder traction extrusion film forming control method program is executed by a processor, the steps of a dry electrode powder traction extrusion film forming control method as described in any one of the above items are implemented.

[0018] The present invention discloses a dry electrode powder traction extrusion film forming control method, system and storage medium, which can obtain a film with a flat texture and uniform surface density, and use temperature control adjustment and spacing rolling to achieve secondary processing of the film, which can not only improve the film forming efficiency of the powder, but also improve the quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart showing a dry electrode powder traction extrusion film forming control method of the present invention is shown; Figure 2 A schematic structural diagram of a film-forming device corresponding to a dry electrode powder traction extrusion film-forming control method of the present invention is shown; Figure 3 A schematic diagram of the screw structure of a film-forming device corresponding to a dry electrode powder traction extrusion film-forming control method of the present invention is shown; Figure 4 A block diagram of a dry electrode powder traction extrusion film forming control system of the present invention is shown.

[0020] Description of reference numerals: 1. Extruder body; 110, cylinder; 111, accommodating chamber; 112. First entrance; 113. First exit; 120. Hopper; 130. Screw; 131. Powder feeding section; 132. Mixing and conveying section; 133, shearing and kneading section; 134, exhaust section; 135. Homogeneous extrusion section; 140. A first rotating electrical machine; 2. Extrusion die head 3. Roller 4. Thermostat 5. Pressure-equalizing chamber 6. Target diaphragm DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0023] Figure 1 A flow chart of a dry electrode powder traction extrusion film forming control method of the present application is shown.

[0024] like Figure 1 As shown, the present application discloses a dry electrode powder traction extrusion film forming control method, comprising the following steps: S102, controlling the extruder body to extrude the powder from a first inlet to a first outlet, wherein the extruder body includes the first inlet and the first outlet; S104, controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; S106, controlling a rolling mechanism to roll-form the initial film sheet extruded from the second outlet to obtain the target film sheet, wherein the target film sheet includes a standard film sheet.

[0025] It should be noted that, in this embodiment, reference Figure 2, showing a structural schematic diagram of a dry electrode powder traction extrusion film-forming device applied in the present method, wherein, after the powder (specifically dry electrode powder) enters the extruder body through the hopper, it will be extruded through the extrusion die head and rolled by the rolling mechanism to obtain the final target membrane. Specifically, the extruder body is first controlled to extrude the powder from the first inlet to the first outlet. Since the first outlet of the extruder body is connected to the second inlet of the extrusion die head, the extrusion die head is controlled to extrude the powder extruded from the first outlet to obtain an initial membrane, and then the rolling mechanism is controlled to roll-form the initial membrane extruded from the second outlet to obtain the target membrane, wherein the target membrane includes a standard membrane, wherein the specification of the standard membrane is a standard specification, which is specifically manifested as the standard spacing corresponding to the rollers in the rolling mechanism.

[0026] According to an embodiment of the present invention, controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

[0027] It should be noted that, in this embodiment, the powder needs to enter the extruder body through the hopper, and accordingly, the powder can be fed by the feeder. Therefore, the powder is controlled to enter the accommodating chamber in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body, and at the same time, the first rotating motor arranged in the barrel is started to rotate to drive the screw to rotate so as to stir the powder, wherein different segments are correspondingly arranged on the screw, so as to stir and extrude the powder by utilizing the different segments arranged on the screw to extrude the powder from the first outlet.

[0028] According to an embodiment of the present invention, the step of stirring and extruding the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

[0029] It should be noted that, in this embodiment, Figure 3 As shown, the number of screws can be adjusted as needed in actual application, wherein the number of screws in this embodiment is three, and the screws are formed by connecting a mixing element, a shearing element and / or a kneading element to a rod, and different combinations of the elements have different functional effects. They can be flexibly arranged and combined according to actual needs to meet different process recipes, and no sole limitation is made here. Specifically, the segments include a powder feeding segment, a mixing and conveying segment, a shearing and kneading segment, an exhaust segment and a homogenizing extrusion segment, wherein, when the screw rotates, the powder located at the powder feeding segment and the mixing and conveying segment is pushed to move toward the first outlet; when the screw rotates, the powder located at the shearing and kneading segment is sheared and kneaded to fiberization; when the screw rotates, the air between the powders located at the exhaust segment is discharged; when the screw rotates, the powder located at the homogenizing extrusion segment is uniformly extruded and extruded from the first outlet.

[0030] According to an embodiment of the present invention, controlling the extrusion die head to extrude the powder extruded from the first outlet to obtain an initial membrane sheet specifically includes: Detecting the sealing degree of the upper die, the lower die and the uniform pressure chamber, wherein when the sealing degree meets the preset requirements, the extrusion die head is obtained; When the powder moves in the pressure-equalizing chamber and is extruded therefrom, temperature control is performed based on temperature controllers disposed in the upper die and the lower die.

[0031] It should be noted that, in this embodiment, when the powder enters the extrusion die from the extruder body, the temperature of the uniform pressure chamber in the extrusion die can be adjusted to control the temperature and molding quality of the powder. Therefore, a temperature controller is provided to control the temperature. Since the extrusion die needs to be temperature controlled and ensure that the powder is extruded from the second outlet, the sealing degree of the extrusion die needs to be detected. Specifically, the extrusion die is composed of an upper die and a lower die. At the same time, the upper die and the lower die can be disassembled to facilitate the cleaning of the internal uniform pressure chamber. Therefore, when applied, First, the sealing degree of the upper mold, the lower mold and the equal pressure chamber is detected. When the sealing degree meets the preset requirements, the extrusion die head is obtained, indicating that the extrusion die head can be used at this time. When the powder moves in the equal pressure chamber and is extruded therefrom, the temperature is controlled based on the temperature controller arranged in the upper mold and the lower mold. The temperature controller can be selected as a heating wire or a temperature control flow channel, which can be set according to needs. The purpose is to control the temperature in the equal pressure chamber. The inner wall of the equal pressure chamber formed by the assembly of the upper mold and the lower mold has smooth transitions at various places.

[0032] According to an embodiment of the present invention, the second inlet (not shown) is connected to the first outlet, and the powder is extruded from the first outlet and enters the second inlet corresponding to the extrusion die, and is extruded through the second outlet (not shown) to obtain the initial membrane, wherein the difference between the width of the uniform pressure chamber at the second inlet and the width of the uniform pressure chamber at the second outlet is less than a specified value.

[0033] It should be noted that in this embodiment, in order to ensure uniform film formation of the initial diaphragm and avoid voids or tearing, the difference between the width of the second inlet and the width of the second outlet should not be too large, and the absolute value of the size difference between the two should not exceed 20%.

[0034] Furthermore, in specific applications, the central axis of the second inlet and the central axis of the second outlet can be in a straight line, or can be perpendicular, or form an obtuse angle, in order to help form a sufficient uniform pressure chamber to ensure that the powder can be squeezed to obtain an initial membrane.

[0035] According to an embodiment of the present invention, the controlling rolling mechanism rolls the initial film sheet extruded from the second outlet to obtain the target film sheet, specifically comprising: When it is detected that the powder enters the extrusion die head, the second rotating motor is started; The second rotary motor drives two rollers at a preset distance to roll-form the initial film to obtain the target film, wherein the distance between the two rollers is adjustable.

[0036] It should be noted that, in the above-mentioned embodiment, it is described that the first rotating motor can drive the screw to rotate, thereby driving the powder to move, and in this embodiment, after obtaining the initial diaphragm, when the initial diaphragm is extruded from the second outlet, it is necessary to use a roller to roll it into shape to obtain the corresponding target diaphragm, wherein the roller is driven by the second rotating motor (not shown), specifically, when it is detected that the powder enters the extrusion die, the second rotating motor is started, so as to ensure that the initial diaphragm is rolled and the power consumption can be reduced; further, based on the second rotating motor driving two rollers with a preset spacing to roll the initial diaphragm to obtain the target diaphragm, wherein the spacing between the two rollers is adjustable, and the rollers are arranged on both sides of the second outlet, and the initial diaphragm can be formed by rolling the rollers on both sides, and the specific specifications are determined based on the spacing between the rollers.

[0037] Figure 4 A block diagram of a dry electrode powder traction extrusion film forming control system of the present invention is shown.

[0038] like Figure 4 As shown, the present invention discloses a dry electrode powder traction extrusion film forming control system, comprising a memory and a processor, wherein the memory comprises a dry electrode powder traction extrusion film forming control method program, and when the dry electrode powder traction extrusion film forming control method program is executed by the processor, the following steps are implemented: Controlling the extruder body to extrude the powder from the first inlet to the first outlet, wherein the extruder body includes the first inlet and the first outlet; Controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; The rolling mechanism is controlled to roll-form the initial film sheet extruded from the second outlet to obtain the target film sheet, wherein the target film sheet includes a standard film sheet.

[0039] It should be noted that, in this embodiment, reference Figure 2, showing a structural schematic diagram of a dry electrode powder traction extrusion film-forming device applied in the present method, wherein, after the powder (specifically dry electrode powder) enters the extruder body through the hopper, it will be extruded through the extrusion die head and rolled by the rolling mechanism to obtain the final target membrane. Specifically, the extruder body is first controlled to extrude the powder from the first inlet to the first outlet. Since the first outlet of the extruder body is connected to the second inlet of the extrusion die head, the extrusion die head is controlled to extrude the powder extruded from the first outlet to obtain an initial membrane, and then the rolling mechanism is controlled to roll-form the initial membrane extruded from the second outlet to obtain the target membrane, wherein the target membrane includes a standard membrane, wherein the specification of the standard membrane is a standard specification, which is specifically manifested as the standard spacing corresponding to the rollers in the rolling mechanism.

[0040] According to an embodiment of the present invention, controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

[0041] It should be noted that, in this embodiment, the powder needs to enter the extruder body through the hopper, and accordingly, the powder can be fed by the feeder. Therefore, the powder is controlled to enter the accommodating chamber in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body, and at the same time, the first rotating motor arranged in the barrel is started to rotate to drive the screw to rotate so as to stir the powder, wherein different segments are correspondingly arranged on the screw, so as to stir and extrude the powder by utilizing the different segments arranged on the screw to extrude the powder from the first outlet.

[0042] According to an embodiment of the present invention, the step of stirring and extruding the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

[0043] It should be noted that, in this embodiment, Figure 3 As shown, the number of screws can be adjusted as needed in actual application, wherein the number of screws in this embodiment is three, and the screws are formed by connecting a mixing element, a shearing element and / or a kneading element to a rod, and different combinations of the elements have different functional effects. They can be flexibly arranged and combined according to actual needs to meet different process recipes, and no sole limitation is made here. Specifically, the segments include a powder feeding segment, a mixing and conveying segment, a shearing and kneading segment, an exhaust segment and a homogenizing extrusion segment, wherein, when the screw rotates, the powder located at the powder feeding segment and the mixing and conveying segment is pushed to move toward the first outlet; when the screw rotates, the powder located at the shearing and kneading segment is sheared and kneaded to fiberization; when the screw rotates, the air between the powders located at the exhaust segment is discharged; when the screw rotates, the powder located at the homogenizing extrusion segment is uniformly extruded and extruded from the first outlet.

[0044] According to an embodiment of the present invention, controlling the extrusion die head to extrude the powder extruded from the first outlet to obtain an initial membrane sheet specifically includes: Detecting the sealing degree of the upper die, the lower die and the uniform pressure chamber, wherein when the sealing degree meets the preset requirements, the extrusion die head is obtained; When the powder moves in the pressure-equalizing chamber and is extruded therefrom, temperature control is performed based on temperature controllers disposed in the upper die and the lower die.

[0045] It should be noted that, in this embodiment, when the powder enters the extrusion die from the extruder body, the temperature of the uniform pressure chamber in the extrusion die can be adjusted to control the temperature and molding quality of the powder. Therefore, a temperature controller is provided to control the temperature. Since the extrusion die needs to be temperature controlled and ensure that the powder is extruded from the second outlet, the sealing degree of the extrusion die needs to be detected. Specifically, the extrusion die is composed of an upper die and a lower die. At the same time, the upper die and the lower die can be disassembled to facilitate the cleaning of the internal uniform pressure chamber. Therefore, when applied, First, the sealing degree of the upper mold, the lower mold and the equal pressure chamber is detected. When the sealing degree meets the preset requirements, the extrusion die head is obtained, indicating that the extrusion die head can be used at this time. When the powder moves in the equal pressure chamber and is extruded therefrom, the temperature is controlled based on the temperature controller arranged in the upper mold and the lower mold. The temperature controller can be selected as a heating wire or a temperature control flow channel, which can be set according to needs. The purpose is to control the temperature in the equal pressure chamber. The inner wall of the equal pressure chamber formed by the assembly of the upper mold and the lower mold has smooth transitions at various places.

[0046] According to an embodiment of the present invention, the second inlet is connected to the first outlet, and the powder is extruded from the first outlet and enters the second inlet corresponding to the extrusion die, and is extruded through the second outlet to obtain the initial membrane, wherein the difference between the width of the uniform pressure chamber at the second inlet and the width of the uniform pressure chamber at the second outlet is less than a specified value.

[0047] It should be noted that in this embodiment, in order to ensure uniform film formation of the initial diaphragm and avoid voids or tearing, the difference between the width of the second inlet and the width of the second outlet should not be too large, and the absolute value of the size difference between the two should not exceed 20%.

[0048] Furthermore, in specific applications, the central axis of the second inlet and the central axis of the second outlet can be in a straight line, or can be perpendicular, or form an obtuse angle, in order to help form a sufficient uniform pressure chamber to ensure that the powder can be squeezed to obtain an initial membrane.

[0049] According to an embodiment of the present invention, the controlling rolling mechanism rolls the initial film sheet extruded from the second outlet to obtain the target film sheet, specifically comprising: When it is detected that the powder enters the extrusion die head, the second rotating motor is started; The second rotary motor drives two rollers at a preset distance to roll-form the initial film to obtain the target film, wherein the distance between the two rollers is adjustable.

[0050] It should be noted that, in the above-mentioned embodiment, it is described that the first rotating motor can drive the screw to rotate, thereby driving the powder to move, and in this embodiment, after obtaining the initial diaphragm, when the initial diaphragm is extruded from the second outlet, it is necessary to use a roller to roll it into shape to obtain the corresponding target diaphragm, wherein the roller is driven by the second rotating motor. Specifically, when it is detected that the powder enters the extrusion die, the second rotating motor is started, so as to ensure that the initial diaphragm is rolled and the power consumption can be reduced; further, based on the second rotating motor driving two rollers with a preset spacing to roll the initial diaphragm to obtain the target diaphragm, wherein the spacing between the two rollers is adjustable, and the rollers are arranged on both sides of the second outlet. The initial diaphragm can be formed by rolling the rollers on both sides, and the specific specifications are determined based on the spacing between the rollers.

[0051] The third aspect of the present invention provides a computer-readable storage medium, which includes a dry electrode powder traction extrusion film forming control method program. When the dry electrode powder traction extrusion film forming control method program is executed by a processor, the steps of a dry electrode powder traction extrusion film forming control method as described in any one of the above items are implemented.

[0052] The present invention discloses a dry electrode powder traction extrusion film forming control method, system and storage medium, which can obtain a film with a flat texture and uniform surface density, and use temperature control adjustment and spacing rolling to achieve secondary processing of the film, which can not only improve the film forming efficiency of the powder, but also improve the quality of the film.

[0053] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0054] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0055] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0056] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0057] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. A dry electrode powder traction extrusion film forming control method, characterized in that: The following steps are involved: Controlling the extruder body to extrude the powder from the first inlet to the first outlet, wherein the extruder body includes the first inlet and the first outlet; Controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; The rolling mechanism is controlled to roll-form the initial film sheet extruded from the second outlet to obtain a target film sheet, wherein the target film sheet includes a standard film sheet.

2. A dry electrode powder traction extrusion film forming control method according to claim 1, characterized in that: The controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

3. A dry electrode powder traction extrusion film forming control method according to claim 2, characterized in that: The stirring and extruding of the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

4. A dry electrode powder traction extrusion film forming control method according to claim 3, characterized in that: The controlling the extrusion die head to extrude the powder extruded from the first outlet to obtain an initial membrane sheet specifically comprises: Detecting the sealing degree of the upper die, the lower die and the uniform pressure chamber, wherein when the sealing degree meets the preset requirements, the extrusion die head is obtained; When the powder moves in the pressure-equalizing chamber and is extruded therefrom, temperature control is performed based on temperature controllers disposed in the upper die and the lower die.

5. A dry electrode powder traction extrusion film forming control method according to claim 4, characterized in that: The second inlet is connected to the first outlet, and the powder is extruded from the first outlet and enters the second inlet corresponding to the extrusion die, and is extruded through the second outlet to obtain the initial membrane, wherein the difference between the width of the equal pressure chamber at the second inlet and the width of the equal pressure chamber at the second outlet is less than a limited value.

6. A dry electrode powder traction extrusion film forming control method according to claim 5, characterized in that: The controlling rolling mechanism rolls the initial film sheet extruded from the second outlet to obtain the target film sheet, specifically comprising: When it is detected that the powder enters the extrusion die head, the second rotating motor is started; The second rotary motor drives two rollers at a preset distance to roll-form the initial film to obtain the target film, wherein the distance between the two rollers is adjustable.

7. A dry electrode powder traction extrusion film forming control system, characterized in that: The invention comprises a memory and a processor, wherein the memory comprises a dry electrode powder traction extrusion film forming control method program, and the dry electrode powder traction extrusion film forming control method program is executed by the processor to implement the following steps: Controlling the extruder body to extrude the powder from the first inlet to the first outlet, wherein the extruder body includes the first inlet and the first outlet; Controlling the extrusion die to extrude the powder extruded from the first outlet to obtain an initial membrane sheet, wherein the extrusion die comprises a second inlet, a second outlet and a uniform pressure chamber; The rolling mechanism is controlled to roll-form the initial film sheet extruded from the second outlet to obtain a target film sheet, wherein the target film sheet includes a standard film sheet.

8. A dry electrode powder traction extrusion film forming control system according to claim 7, characterized in that: The controlling the extruder body to extrude the powder from the first inlet to the first outlet specifically includes: Controlling the powder to enter the containing cavity in the barrel of the extruder body from the hopper connected to the first inlet of the extruder body; Starting a first rotating motor disposed in the barrel to rotate so as to drive the screw to rotate so as to stir the powder; The powder is stirred and extruded by using different sections arranged on the screw so as to extrude the powder from the first outlet.

9. A dry electrode powder traction extrusion film forming control system according to claim 8, characterized in that: The stirring and extruding of the powder by using different segments arranged on the screw to extrude the powder from the first outlet specifically includes: The sections include a powder feeding section, a mixing and conveying section, a shearing and kneading section, a venting section, and a homogenizing and extruding section, wherein: When the screw rotates, the powder located at the powder feeding section and the mixing and conveying section is pushed to move toward the first outlet; When the screw rotates, the powder located at the shearing and kneading section is sheared and kneaded until it becomes fiberized; When the screw rotates, the air between the powders located at the exhaust section is exhausted; When the screw rotates, the powder located at the homogeneous extrusion section is uniformly extruded and extruded from the first outlet.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a dry electrode powder traction extrusion film forming control method program. When the dry electrode powder traction extrusion film forming control method program is executed by a processor, the steps of a dry electrode powder traction extrusion film forming control method as described in any one of claims 1 to 6 are implemented.

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