Crystallization conductivity testing device for continuous carbon film

Abstract

The utility model discloses a crystallization conduction testing device for a continuous carbon film. The crystallization conduction testing device is composed of a storage detection assembly and a testing assembly. When a test is executed, firstly, a carbon film part serving as a detected part is placed on the object placing detection assembly. The object placing detection assembly is provided with a plurality of contact points, and the contact points make contact with the carbon film piece in different directions, so that a plurality of current paths are formed on the detected piece. The test assembly is a multi-degree-of-freedom mechanism and has at least three linear degrees of freedom, and each linear degree of freedom finally drives one electrode. By controlling the stroke amount of the linear degrees of freedom, the electrode can be subjected to universal angle adjustment in any direction of the tested piece. When the electrodes directly face the test piece and discharge, the current flows through all the current paths from the electrodes, and at the moment, the object placing detection assembly records the total flow value of the current and the flowing time.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive material process testing, in particular to a crystallization conductive testing device for a continuous carbon film. Background Art

[0002] Fluoride cathode materials, especially bismuth fluoride, have attracted much attention for their high specific capacity and volume energy density. During the discharge process, the conversion reaction experienced by fluoride (such as the change of MeFn: nLi++MeFn+ne-→nLiF+Me0) can release a specific capacity of more than 200mAh / g, among which bismuth fluoride shows great application prospects due to its volume specific capacity of about 7170Wh / L.

[0003] However, there are still many challenges in the synthesis of bismuth fluoride and its electrochemical performance. Traditional synthesis methods, such as the reaction of hydrogen fluoride gas with metal oxides / hydroxides or fluorine gas with metal elements at high temperatures, are effective, but the process conditions are harsh, the equipment cost is high, and the energy consumption is high, resulting in expensive products. In contrast, the method of preparing bismuth fluoride by liquid phase reaction is mild, but the by-product content is high, and there is a risk of highly toxic hydrogen fluoride produced by the reaction of dilute nitric acid and ammonium fluoride, all of which limit its application in positive electrode materials.

[0004] In addition, bismuth fluoride as a positive electrode material for lithium-ion secondary batteries also faces the problem of low electronic conductivity. This will lead to an increase in polarization voltage during charging and discharging, which in turn affects the performance of the battery. Although some researchers have tried to improve conductivity by adding carbon black and mixing it with ball milling, granular carbon black is difficult to form a complete conductive link and cannot significantly improve electronic conductivity.

[0005] In response to the above problems, the latest technology has proposed a preparation strategy: drying treatment under low temperature and high vacuum conditions, fixing reactants such as bismuth nitrate in a continuous polyacrylamide body with pores and voids, and generating bismuth fluoride materials in situ through liquid phase reaction. The subsequent heat treatment process transforms the polyacrylamide as a whole into a continuous carbon film with crystalline pores and voids. This continuous carbon film not only maintains the pore and void characteristics of the material, but also has extremely high electrical conductivity, thereby greatly improving the electronic conductivity of the composite material.

[0006] However, bismuth fluoride will produce new phases of metallic bismuth and lithium fluoride during the discharge process. These small particles of new phases are unfavorable in the initial formation kinetics, which may have an adverse effect on the battery's charge and discharge capacity, discharge potential, and capacity retention. If only this new technology is used to prepare continuous carbon films without any detection and testing methods, it is difficult to ensure that defective products will not enter the market.

[0007] Therefore, a crystalline conductive testing device for continuous carbon film is proposed. Utility Model Content

[0008] In view of this, the embodiment of the utility model hopes to provide a crystalline conductivity test device for a continuous carbon film to solve or alleviate the technical problems existing in the prior art, that is, to test and judge the conductivity of the crystalline holes and void structures of the continuous carbon film, and to provide at least a beneficial option for this;

[0009] The technical solution of the embodiment of the utility model is implemented as follows: a crystalline conductive test device for a continuous carbon film, which consists of two major parts: a placement detection component and a test component. When performing the test, the carbon film part as the test piece is first placed on the placement detection component. The placement detection component is designed with multiple contact points, which are in contact with different orientations of the carbon film part, thereby forming several current paths on the test piece. The test component is a multi-degree-of-freedom mechanism, which has at least three linear degrees of freedom, and each linear degree of freedom ultimately drives an electrode. By controlling the stroke of these linear degrees of freedom, the electrode can be universally adjusted in any orientation of the test piece. When the electrode is facing the test piece and performing discharge, the current will flow from the electrode through all current paths. At this time, the placement detection component will record the total flow value of the current and the time it flows.

[0010] In one embodiment, the object detection component is a complex component that integrates multiple electronic components. Its core parts include a housing and multiple conductors installed in the housing, a current sensor, a timer, a wireless transceiver, and a battery. The detected part (i.e., the carbon film part) contacts the conductor during the test, thereby forming a current path with the input end of the current sensor. The current sensor is responsible for detecting the total current value passing through all conductors and passing this key data to the timer, which then records the maximum time interval for the current to flow through the conductor.

[0011] In order to achieve real-time data transmission and remote control, a wireless transceiver is also installed in the housing. The current sensor converts the detected electrical signal into a format suitable for wireless transmission and sends it to the external controller through the wireless transceiver. This wireless transmission method not only improves the flexibility of the test, but also reduces the interference and failure risks introduced by wired connections.

[0012] In order to ensure that the object detection component can work normally without external power supply, a battery is built into the housing. The battery provides a stable power supply for key components such as current sensors, timers and wireless transceivers, thereby ensuring the continuity and accuracy of the test.

[0013] In one embodiment, in the internal structure of the object detection component, all conductors are electrically connected through wires. These wires are carefully arranged to ensure that they can effectively transmit current signals and reduce signal loss and interference. In order to simplify the circuit structure and improve the signal quality, all the wires are finally combined into a bus. This bus serves as the main road for current transmission and stably transmits the current signal to the input end of the current sensor. The conductor is installed in the housing in the form of a ring array. This layout not only allows the conductors to be evenly distributed around the detected object, thereby more comprehensively detecting the current distribution, but also helps to reduce mutual interference between conductors and improve the accuracy of the detection results.

[0014] In one embodiment, the test assembly is a complex assembly, mainly composed of a first frame, a second frame, a linear actuator, an electrode and other components. The first frame is the base of the entire assembly, and its position is fixed. The second frame can be moved relative to the first frame to realize the discharge test of the electrode at different positions and angles. In order to realize the precise movement of the second frame, a plurality of linear actuators are evenly installed in the form of a ring array between the first frame and the second frame. These linear actuators can independently control their telescopic lengths to generate linear degrees of freedom. By combining the telescopic amounts of different linear actuators, the second frame can be accurately translated and rotated in three-dimensional space. The electrode is mounted on the second frame and moves with the movement of the second frame. When a discharge test is required, the electrode will move to a specified position under the drive of the linear actuator and contact the part to be tested (i.e., the carbon film part). At this time, the electrode will output current to the part to be tested to detect its conductive properties.

[0015] In one embodiment, in the test assembly, the linear actuator uses a servo cylinder, a high-precision, high-response speed transmission device. The servo cylinder drives the piston rod through its internal servo motor to perform precise telescopic movement, thereby realizing the linear freedom of the second frame relative to the first frame. In order to ensure that the servo cylinder can flexibly adapt to the relative movement between the first frame and the second frame, the cylinder body and the piston rod are universally articulated on the respective sides of the first frame and the second frame respectively through a universal joint coupling. This articulation method allows the servo cylinder to produce relative rotation in multiple directions, thereby ensuring that the electrode can approach the test piece at any angle.

[0016] In one embodiment, the rack is the basic support structure of the entire continuous carbon film crystal conductive test device, on which the first assembly line and the second assembly line, as well as linear modules a, b, c and d are installed. These components together constitute an efficient and automated test system. The first assembly line and the second assembly line are used to transport the object detection assembly and the tested object (carbon film) carried by it into and out of the detection area respectively. The first assembly line is responsible for introducing the carbon film to be tested into the test device, while the second assembly line is responsible for removing the carbon film that has not passed the test from the test device. Linear modules a, b, c and d are key components for realizing the automation function of the test device. Linear module a is installed on the rack and is used to adjust the overall height of the test assembly to meet the testing requirements of carbon films of different sizes. Linear module b is responsible for pushing the carbon film that has passed the test of the test assembly and the object detection assembly carried by it away to the detection area, and returning to the first assembly line through the discharge port for the next round of testing or subsequent processing. Linear module c is responsible for pushing the object detection assembly and the carbon film to be tested carried by it from the first assembly line into the detection area so that the test assembly can test it. Linear module d is used to push the carbon film that failed the test and the object detection assembly carried by it away from the detection area and enter the second assembly line through the waste port for waste disposal or rework.

[0017] In one embodiment, linear modules a, b, c and d, as key actuator components in the automated testing device, all adopt a combination structure of an actuator electric cylinder and a push plate. The actuator electric cylinder is a transmission device that can convert electrical energy into linear motion. It drives the piston rod to perform telescopic motion through the internal motor, thereby driving the push plate to move linearly. In linear modules b, c and d, the push plate is directly used to push the object detection component. When the piston rod of the actuator electric cylinder is extended and retracted, the push plate will move accordingly, thereby realizing the pushing operation of the object detection component. This pushing method is both reliable and accurate, and can ensure the accurate position and stable movement of the object detection component during the test process. In linear module a, the first frame of the test component is fixedly installed on the push plate. This means that when the actuator electric cylinder drives the push plate to perform lifting and lowering motion, the entire test component will also rise and fall accordingly. This design allows the height of the test component to be flexibly adjusted to accommodate carbon films of different sizes and test requirements.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. High efficiency and automation: This device realizes the automated test of the conductive properties of continuous carbon films by introducing components such as racks, assembly line operations and linear modules. The entire process from carbon film input, positioning, testing to classification output is automatically completed by the device, which greatly improves the test efficiency and reduces manual operation costs and error rates.

[0020] 2. Flexibility and adaptability: The design of this device has certain flexibility and adaptability. For example, the height of the linear module is adjustable, which can adapt to carbon films of different sizes and test requirements; at the same time, the assembly line speed and test parameters in the device can also be adjusted according to actual needs. This design enables the device to adapt to different production environments and test requirements.

[0021] 3. Compact structure and convenient maintenance: The device adopts modular design, and the components are compact and reasonably arranged. This not only reduces the footprint of the device, but also facilitates maintenance and repair. At the same time, the main components of the device adopt standardized and universal design, which reduces the maintenance cost and difficulty.

[0022] 4. Improve product quality and production efficiency: By conducting comprehensive and accurate tests on the conductivity of continuous carbon films, this device can promptly detect and handle products with poor conductivity. This not only improves product quality, but also avoids waste of resources and customer complaints caused by unqualified products entering the market. At the same time, the automation and efficiency of the device also help improve production efficiency and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional schematic diagram from one perspective of the utility model;

[0025] Figure 2 It is a three-dimensional schematic diagram from another perspective of the utility model;

[0026] Figure 3 It is a three-dimensional schematic diagram from another perspective of the utility model;

[0027] Figure 4 It is a three-dimensional schematic diagram of the object detection component of the utility model from two different viewing angles;

[0028] Figure 5 It is a three-dimensional schematic diagram of four groups of linear modules of the same structure represented by the linear module 3a of the present invention, and a three-dimensional schematic diagram of the linear module 3a and the test assembly;

[0029] Figure 6 The following is a simplified diagram of the working principle of the object detection component of the present utility model.

[0030] Figure numerals: 1, frame; 101, waste port; 102, discharge port; 2, display screen; 3a, 3b, 3c, 3d, linear module; 301, actuator cylinder; 302, push plate; 4, placement detection component; 401, shell; 402, conductor; 403, current sensor; 404, wireless transceiver; 405, battery; 5, test component; 501, first frame; 502, second frame; 503, linear actuator; 504, electrode; 6, first assembly line; 7, second assembly line. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed below;

[0032] Example

[0033] See also Figure 1-6 The present specific embodiment provides a crystalline conductive test device of a continuous carbon film, comprising a placement detection component 4 and a test component 5; a carbon film component as a detected component is placed on the placement detection component 4, and the placement detection component 4 forms a plurality of current paths at different positions of the detected component; the test component 5 comprises at least three linear degrees of freedom, and the linear degrees of freedom drive an electrode 504; when each linear degree of freedom performs a different stroke amount, the electrode 504 is universally adjusted; the electrode 504 is directly opposite to the detection component; when the electrode 504 performs discharge, the current flows through all current paths, and the placement detection component 4 records the total flow value and the flow time of the current.

[0034] In this solution: when executing, the electrode 504 of the test component 5 can discharge, and the position and angle of the discharge can be performed at any position of the tested object. During the execution, the object detection component 4 records the change of the current and the flow time, and compares it with the preset theoretical design parameter value of the tested object. If it does not meet the theoretical parameter value, it is regarded as a waste, and vice versa. Through this mode, a test mode is formed.

[0035] In this solution: The working principle of the test device is based on the conductivity and continuity of the current. When the electrode 504 discharges, it generates a current field, which is conducted through the current path on the test piece (i.e., the carbon film piece). Since the conductivity of the test piece directly affects the conduction effect of the current, the conductivity of the test piece can be indirectly evaluated by measuring the total flow value and flow time of the current. In addition, since the test component 5 has multiple linear degrees of freedom and universal angle adjustment functions, it can simulate the current conduction conditions in various actual use scenarios, thereby improving the accuracy and reliability of the test.

[0036] Preferably, the electrode 504 model is InLab751;

[0037] In this solution, all electrical components of the device as a whole rely on AC power for energy supply; specifically, the electrical components of the device as a whole are conventionally electrically connected to the AC power output port through devices such as relays, transformers and button panels to meet the energy supply requirements of all electrical components of the device.

[0038] Specifically, a controller is also provided on the outside of the device, which is used to connect and control all electrical components of the device as a whole to be driven according to a pre-set program as a preset value and a driving mode; it should be pointed out that the above-mentioned driving mode corresponds to the corresponding start and stop time intervals, speed, power and other output parameters between the relevant electrical components mentioned below, that is, it meets the requirements of the relevant electrical components described below to drive the relevant mechanical devices to operate according to the functions described therein.

[0039] Preferably, the controller is a PLC controller, which completes the above control requirements through conventional PLC control modes such as ladder diagrams, sequential function diagrams, function block diagrams, instruction tables or structured texts; it should be pointed out that the output parameters such as the start and stop time intervals, speed, power, etc. of the electrical components or other power components driven by its programming are non-limiting; specifically, the relevant drive control is adjusted according to actual usage requirements.

[0040] Preferably, a display screen 2 for displaying the current and time of the tested piece is connected to the outside of the controller, and the staff can use this as a basis to determine whether the process indicators of the tested piece meet the theoretical design indicators.

[0041] Specifically: The crystalline conductive test device of the continuous carbon film is mainly used to evaluate the conductive properties of carbon film parts. When performing the test, it can simulate the current conduction conditions in various actual usage scenarios, and evaluate the conductive properties of the tested piece by measuring the total flow value and flow time of the current. In addition, the measurement results are compared with the preset theoretical design parameter values ​​of the tested piece to determine whether the tested piece meets the design requirements. Through this test mode, waste products with unqualified conductive properties can be effectively screened out, improving production efficiency and product quality. At the same time, the device can also provide strong data support for product research and development and process improvement.

[0042] In some specific embodiments of this application, please refer to Figure 4 , 6 The object placement detection component 4 includes a shell 401 and a plurality of conductors 402 installed in the shell 401. When the detected object contacts the conductor 402, a current path is formed with the input end of the current sensor 403 installed in the shell 401. The current sensor 403 is used to detect the total current value of all conductors 402, and the maximum time interval of the current flowing through the conductor 402 is known through the timer. At the same time, a wireless transceiver 404 is also installed in the shell 401, and the current sensor 403 sends the detected electrical signal to the external controller through the wireless transceiver 404. Among them, the current sensor 403, the timer and the wireless transceiver 404 are all powered by the battery 405 built into the shell 401.

[0043] In this solution: The working principle of this embodiment is based on the conductivity and measurement technology of current. When the detected object contacts the conductor 402, the current will flow from the detected object through the conductor 402 and reach the input end of the current sensor 403. The current sensor 403 detects the magnitude of the current flowing through the conductor based on the electromagnetic induction principle or the Hall effect and other measurement technologies, and transmits this signal to the timer and wireless transceiver 404. The timer records the time interval of the current flowing through the conductor, thereby obtaining information such as the duration and stability of the current.

[0044] The test process can be made more convenient and efficient by realizing remote transmission of data and reception of control signals through the wireless transceiver 404. The storage battery 405 provides stable power support for the entire system, ensuring normal test operation can be performed without external power supply.

[0045] Specifically: The object detection component 4 of this embodiment plays a key role in the crystallization conductivity test of the continuous carbon film. It can not only accurately measure the magnitude and duration of the current flowing through the detected object, but also send real-time data to an external controller via wireless transmission, thereby realizing remote monitoring and data analysis. This design not only improves the accuracy and reliability of the test, but also reduces the difficulty and cost of operation. In addition, the introduction of the battery 405 enables the component to work normally without an external power supply, further enhancing its practicality and flexibility. By combining this component with other parts such as the test component 5, a complete and efficient continuous carbon film crystallization conductivity test system can be constructed, providing strong support for research and application in related fields.

[0046] Preferably, the selection schemes of the current sensor 403 include but are not limited to the following:

[0047] (1) Magnetoelectric current sensor: models such as ACS712, LTS15-NP, etc.

[0048] (2) Impedance current sensor: models such as LEM LA, YHDC SCT, etc.

[0049] (3) Hall sensor: models such as ACS758, LEM HLSR, etc.

[0050] (4) Photoelectric current sensor: models such as OPHxxx series, etc.

[0051] (5) Electromagnetic current sensor: models such as the SCCT series.

[0052] Preferably, the controller is also provided with a similar wireless transceiver 404. The two wireless transceivers 404 are wirelessly connected via a conventional communication protocol.

[0053] Preferably, the wireless transceiver 404 is a TDD-COFDM ultra-small bidirectional wireless transceiver.

[0054] In some specific embodiments of this application, please refer to Figure 4 , 6 : All conductors 402 are electrically connected to wires, and all wires are gathered into a busbar and electrically connected to the input end of the current sensor 403. At the same time, the conductors 402 are evenly installed in the housing 401 in the form of a ring array.

[0055] In this scheme: The working principle of this embodiment is mainly based on the conductivity of current and the connection method of the circuit. By connecting the conductor 402 and the current sensor 403 through a wire, a complete current loop can be formed. When the detected part contacts the conductor 402, the current will flow from the detected part into the conductor 402 and be transmitted to the busbar through the wire. As the main channel for current transmission, the busbar has a low resistance and a high current carrying capacity, which can ensure the stable transmission of the current signal. The conductor 402 adopts a circular array layout, which allows each conductor to independently contact the detected part and detect its local current conditions. By summarizing and analyzing the current signals of all conductors, the overall current distribution and conductive properties of the detected part can be obtained.

[0056] Specifically: The object detection assembly 4 of this embodiment plays a vital role in the crystallization conductivity test of the continuous carbon film. It can accurately detect the current distribution of the detected object and stably transmit the current signal to the external device for analysis and processing through the busbar and current sensor. This design not only improves the accuracy and reliability of the test, but also provides strong support for subsequent data analysis and process improvement.

[0057] It is understandable that, combined with Figure 6 It can be known that Figure 4 The serial number 405 in the figure is actually the charging socket of the battery. The serial number 404 is actually the transmitting end of the wireless transceiver 404.

[0058] In some specific embodiments of this application, please refer to Figure 5 The test assembly 5 includes a first frame 501 and a second frame 502. The position of the first frame 501 is fixed. Linear actuators 503 for outputting linear degrees of freedom are evenly installed in the form of a ring array between the first frame 501 and the second frame 502. Electrodes 504 are installed on the second frame 502. When the linear actuators 503 are executed, linear degrees of freedom are generated. In this process, the electrodes 504 can be manually controlled to work, or a key time frame can be set based on the control time of each linear actuator 503 under the control of the PID controller, and the electrodes 504 can be automatically controlled to work in the form of a time frame.

[0059] In this solution: The working principle of this embodiment is mainly based on the principle of mechanical transmission and current discharge. Through the telescopic movement of the linear actuator 503, the position and posture of the second frame 502 and the electrode 504 can be accurately controlled. This mechanical transmission method has the advantages of high precision and fast response speed, and can meet the needs of continuous carbon film crystallization conductivity testing. During the discharge test, the electrode 504 will output a certain current to the test piece. The size and duration of this current can be adjusted according to the test requirements. By measuring the current response of the test piece at different positions and angles, its conductivity and uniformity can be evaluated.

[0060] Specifically: The test component 5 of this embodiment plays a vital role in the crystallization conductivity test of the continuous carbon film. It can accurately control the position and posture of the electrode 504 to simulate the current conduction conditions in various actual usage scenarios. At the same time, by measuring the current response of the test piece at different positions and angles, a more comprehensive and accurate test result can be obtained. In addition, the test component 5 also has the advantages of compact structure and convenient operation. By combining it with other parts such as the object detection component 4, a complete and efficient continuous carbon film crystallization conductivity test system can be constructed. This is of great significance for product research and development, quality control in the production process, and subsequent data analysis and process improvement.

[0061] Preferably, the conductor 402 is a bar supported by pure austenitic stainless steel, one end of which is used to contact the tested object, and the other end of which is electrically connected to a wire.

[0062] In some specific embodiments of this application, please refer to Figure 5 The linear actuator 503 is a servo electric cylinder, and the cylinder body and piston rod of the servo electric cylinder are universally hinged on the mutually opposite sides of the first frame 501 and the second frame 502 through a universal joint coupling.

[0063] In this solution: the working principle of the servo electric cylinder is based on the precise control technology of the servo motor and the principle of hydraulic transmission. By controlling the rotation angle and speed of the servo motor, the extension and retraction amount and movement speed of the piston rod can be accurately controlled. This transmission method has the advantages of fast response speed, high positioning accuracy, and strong load capacity. It is very suitable for precise control of electrode position and posture in continuous carbon film crystallization conductivity testing. The universal joint coupling is a mechanical device that can achieve multi-directional relative rotation. Through its internal spherical surface and needle roller structures, it allows the cylinder body and the piston rod to produce relative rotation in multiple directions, thereby ensuring that the servo electric cylinder can flexibly adapt to the relative movement between the first frame 501 and the second frame 502.

[0064] Specifically: The test assembly 5 of this embodiment realizes the precise movement and arbitrary angle adjustment of the electrode 504 in three-dimensional space by adopting high-precision transmission devices such as servo electric cylinders and universal joint couplings. This design not only improves the accuracy and reliability of the test, but also provides strong support for subsequent data analysis and process improvement. At the same time, the rapid response capability and high-precision positioning characteristics of the servo electric cylinder also make the testing process more efficient and convenient. Whether in the product development stage or in the production process, the test assembly 5 can provide accurate and reliable test data for the evaluation of the crystalline conductive properties of the continuous carbon film. This is of great significance for improving product quality and optimizing production processes.

[0065] In some specific embodiments of this application, please refer to Figures 1 to 3 : It also includes a frame 1, on which a first assembly line 6 and a second assembly line 7 are installed; linear modules 3a, 3b, 3c, and 3d are installed on the frame 1;

[0066] The linear module 3a is used to adjust the test assembly 5 as a whole for lifting and lowering;

[0067] The linear module 3b is used to push the tested object that has passed the test by the test component 5 and the object detection component 4 carried by it away to the detection area, and return it to the first assembly line 6 through the discharge port 102;

[0068] The linear module 3c is used to push the object detection assembly 4 and the tested object carried by it on the first assembly line 6 into the detection area;

[0069] The linear module 3 d is used to push the tested piece that has not passed the test and the object detection assembly 4 on which it is carried away to the detection area, and enter the second assembly line 7 through the waste port 101 .

[0070] The introduction of the rack 1, the first assembly line 6, the second assembly line 7 and the linear modules 3a, 3b, 3c, 3d constitutes a complete automated testing device for the object placement detection component 4 and the test component 5. During execution, the staff places the carbon film on the object placement detection component 4 at one end of the first assembly line 6, and lets the first assembly line 6 introduce it into the crystallization conductive test device of the continuous carbon film for testing; if the final result is a qualified product, the first assembly line 6 will flow out the carbon film, during which the staff will need to remove the object placement detection component 4 and re-place it at the first assembly line 6; if the final result is a defective product, the second assembly line 7 will flow out the carbon film and hand it over to the staff for processing, during which the staff will also need to remove the object placement detection component 4 and re-place it at the first assembly line 6.

[0071] In this solution: The working principle of this embodiment is based on the principle of mechanical automation and assembly line operation. Through the continuous delivery of the first assembly line 6 and the second assembly line 7, and the precise control of the linear modules 3a, 3b, 3c and 3d, the automatic testing and classification of the carbon film is realized. This design not only improves the testing efficiency, but also reduces the manual operation cost and error rate.

[0072] Specifically: The continuous carbon film crystal conductive test device of this embodiment realizes a complete and efficient automated testing system by introducing components such as a frame 1, a first assembly line 6, a second assembly line 7, and linear modules 3a, 3b, 3c, 3d. The system can automatically complete a series of operations such as the transportation, testing, classification and processing of the carbon film, greatly improving the test efficiency and product quality. At the same time, the system also has the advantages of compact structure and convenient operation. The staff only needs to place the carbon film on the object detection component 4 at one end of the first assembly line 6, and then start the test device. After the test is completed, qualified products and defective products will flow out through the first assembly line 6 and the second assembly line 7 respectively, and will be handed over to the staff for subsequent processing. This design not only reduces the work intensity of the staff, but also improves the production efficiency and product quality level.

[0073] Preferably, the first assembly line 6 can also be connected to the other assembly lines of the continuous carbon film production line, so that the device provided in this embodiment can actually be used as a process station and applied in the continuous carbon film production line.

[0074] Preferably, the start and stop time of the linear modules 3a, 3b, 3c, and 3d can be designed according to the design concept of a conventional assembly line, that is, position sensors connected to the controller are set at corresponding positions of the first assembly line 6 and the rack 1, and the controller determines the start and stop of each linear module 3a, 3b, 3c, and 3d based on the signal fed back by the position sensor.

[0075] It is understandable that the automatic control mode may not be selected, and a switch may be designed outside the linear modules 3a, 3b, 3c, 3d to implement the above-mentioned driving mode in a non-contact manner through a manual execution mode by a staff member.

[0076] In some specific embodiments of this application, please refer to Figures 1 to 3 5: The linear modules 3a, 3b, 3c, and 3d all include an actuator cylinder 301 and a push plate 302 fixed on the piston rod of the actuator cylinder 301. The push plates 302 of the linear modules 3b, 3c, and 3d are used to push the object detection component 4. The first frame 501 of the test component 5 is fixed on the push plate 302 of the linear module 3a.

[0077] In this solution: the working principle of this embodiment is mainly based on the linear transmission principle of the actuator electric cylinder 301. By controlling the rotation of the motor of the actuator electric cylinder 301, the extension length and speed of the piston rod can be accurately controlled, thereby realizing accurate control of the push plate 302. This transmission method has the advantages of simple structure, fast response speed, high positioning accuracy, etc., and is very suitable for accurate control of the object detection component 4 and the test component 5 in the automated testing device.

[0078] Specifically: The linear module design of this embodiment enables the continuous carbon film crystal conductive test device to reach a new level in automation and accuracy. By using the combination of the electric cylinder 301 and the push plate 302, efficient and precise control of the object detection component 4 and the test component 5 is achieved. This not only improves the test efficiency, but also ensures the accuracy and reliability of the test results. At the same time, the design also has the advantages of compact structure and easy maintenance. Each linear module can work independently or cooperate with each other to complete complex test tasks. This is of great significance for improving production efficiency and reducing operating costs.

[0079] It should be pointed out that, combined with Figure 3 From the content, we can know that the "push" mode of linear module 3D is actually a kind of "internal push", that is, toggle.

[0080] In summary, in view of the related problems in the conventional technology, this specific embodiment is based on the above-mentioned continuous carbon film crystalline conductivity test device, and adopts the following detection process to achieve a solution:

[0081] S1, preparation stage: the staff places the carbon film to be tested on the object detection assembly 4 at one end of the first assembly line 6, and then the first assembly line 6 introduces the object detection assembly 4 and the carbon film carried thereon into the testing device.

[0082] S2, testing phase: When the object detection component 4 and the carbon film it carries are transported to the detection area, the linear module 3c is responsible for accurately positioning them. The electrode 504 in the test component 5 moves above the carbon film under the precise control of the linear actuator 503 (servo cylinder) and contacts the carbon film. The electrode 504 outputs current to the carbon film to test its conductivity. During this process, the test component 5 will record data such as the current size and flow conditions.

[0083] S3, judgment stage: According to the test data recorded by the electrode 504, the device will analyze the conductivity of the carbon film. If the conductivity of the carbon film reaches the preset standard, it is judged as a qualified product; if the conductivity is lower than the preset standard, it is judged as a defective product. For qualified products, the linear module 3b will push it and the object detection component 4 it carries away to the detection area, and return to the first assembly line 6 through the discharge port 102 for the next round of testing or subsequent processing. For defective products, the linear module 3d will push it and the object detection component 4 it carries away to the detection area, and enter the second assembly line 7 through the waste port 101 for waste treatment or rework.

[0084] S4, subsequent processing: The staff collects qualified products and defective products at the exits of the first assembly line 6 and the second assembly line 7 respectively, and performs corresponding subsequent processing.

[0085] Throughout the entire process, the device uses precise mechanical control and current testing technology to achieve automated testing and judgment of the conductive properties of the crystalline holes and void structures of the continuous carbon film. This design not only improves test efficiency and accuracy, but also reduces manual operation costs and error rates, providing strong support for the production and quality control of continuous carbon films.

[0086] Furthermore, by determining the total flow value and flow time of the current at different detection positions of the continuous carbon film, the device can evaluate the conductivity of the carbon film and further infer the influence of its crystal pores and void structure on the conductivity. The principle is:

[0087] (1) Total flow value of current: The total flow value of current, that is, current intensity, is an important indicator for evaluating conductive properties. In the test of continuous carbon film, if the total flow value of current is low at a certain detection direction, this may mean that there are more crystal holes or void structures in the carbon film in that area, which causes the current to be hindered when passing through. Therefore, by comparing the total flow values ​​of current at different detection directions, we can roughly judge the differences in conductive properties of various regions of the carbon film, as well as the possible relationship between these differences and crystal holes and void structures.

[0088] (2) Time for current to flow: In addition to the total current flow value, the time for current to flow through the carbon film is also an important parameter for evaluating the conductive properties. Ideally, if the crystalline structure of the carbon film is uniform and continuous, the current should be able to pass through quickly and smoothly. However, if there are crystalline holes or void structures in the carbon film, the current may be hindered when passing through these areas, resulting in a longer flow time. Therefore, by measuring and analyzing the time for current to flow through the carbon film, the conductive properties of the carbon film and the influence of the crystalline holes and void structures on the conductive properties can be further inferred.

[0089] In summary, this device can comprehensively evaluate the conductivity of the continuous carbon film by comprehensively considering the total flow value and flow time of the current at different detection positions, and infer the specific impact of the crystal pores and void structure on the conductivity. This judgment principle provides strong support for the production and quality control of continuous carbon films, helps to timely discover and deal with products with poor conductivity, and improve production efficiency and product quality.

[0090] The above-mentioned embodiments only express the implementation methods of the relevant practical applications of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A crystalline conductivity test device for a continuous carbon film, characterized in that: It includes a placement detection component (4) and a test component (5); A carbon film member as a detected object is placed on the object placement detection component (4), and the object placement detection component (4) forms a plurality of current paths at different positions of the detected object; The test assembly (5) comprises at least three linear degrees of freedom, wherein the linear degrees of freedom drive an electrode (504); when each of the linear degrees of freedom performs a different stroke amount, the electrode (504) performs universal angle adjustment; The electrode (504) is facing the detection element; when the electrode (504) performs discharge, current flows through all the current paths, and the object placement detection component (4) records the total flow value and flow time of the current.

2. The crystalline conductivity testing device of the continuous carbon film according to claim 1, characterized in that: The object placement detection component (4) comprises a housing (401) and a plurality of conductors (402) installed in the housing (401); when the detected object contacts the conductors (402), the current path is formed with the input end of a current sensor (403) installed in the housing (401).

3. The crystalline conductivity testing device of the continuous carbon film according to claim 2, characterized in that: All the conductors (402) are electrically connected to wires, and all the wires are gathered into a bus bar and electrically connected to the input end of the current sensor (403).

4. The crystalline conductivity testing device of the continuous carbon film according to claim 2, characterized in that: The conductors (402) are evenly installed in the housing (401) in the form of an annular array.

5. The crystalline conductivity testing device of the continuous carbon film according to claim 1, characterized in that: The test assembly (5) comprises a first frame (501) and a second frame (502), the position of the first frame (501) is fixed, and linear actuators (503) for outputting the linear degree of freedom are evenly installed between the first frame (501) and the second frame (502) in the form of a ring array; The electrode (504) is mounted on the second frame (502); When the linear actuator (503) is executed, the linear degree of freedom is generated.

6. The crystalline conductivity testing device of the continuous carbon film according to claim 5, characterized in that: The linear actuator (503) is a servo electric cylinder, and the cylinder body and piston rod of the servo electric cylinder are universally hinged on respective surfaces of the first frame (501) and the second frame (502) that are opposite to each other through universal joint couplings.

7. The crystalline conductivity testing device of the continuous carbon film according to claim 1, characterized in that: It also comprises a frame (1), on which a first assembly line (6) and a second assembly line (7) are mounted; The frame (1) is provided with linear modules (3a, 3b, 3c, 3d); The linear module (3a) is used to adjust the overall lifting and lowering of the test component (5); The linear module (3b) is used to push the tested object that has passed the test by the test component (5) and the object placement detection component (4) on which it is carried away to the detection area, and return them to the first assembly line (6) through the discharge port (102); The linear module (3c) is used to push the object placement detection component (4) and the tested object carried thereon on the first assembly line (6) into the detection area; The linear module (3d) is used to push the tested object that has failed the test and the object placement detection assembly (4) on which it is carried away to the detection area, and enter the second assembly line (7) through the waste material port (101).

8. The crystalline conductivity testing device of the continuous carbon film according to claim 7, characterized in that: The linear modules (3a, 3b, 3c, 3d) each comprise an actuating electric cylinder (301) and a push plate (302) fixedly mounted on a piston rod of the actuating electric cylinder (301); the push plate (302) of the linear modules (3b, 3c, 3d) is used to push the object placement detection component (4); The test assembly (5) is fixedly mounted on the push plate (302) of the linear module (3a).

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