Mark hole tracking mechanism
Through the cooperation of edge detection components and servo devices, precise positioning of the radiation sensor is achieved, which solves the problem of inaccurate mark hole signals caused by fluctuations in the electrode material line and avoids the waste of electrode diaphragm materials.
Patent Information
- Application Number
- CN202422837069.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
During the battery processing, the fluctuation of the electrode material line causes the mark hole to change in space, resulting in inaccurate mark cut-off signal, which in turn leads to waste of electrode diaphragm material.
The edge detection part is used to detect the edge signal of the pole piece, and the servo device drives the beam sensor to move to accurately capture the mark hole to avoid misjudgment.
The accuracy of mark hole capture is improved, avoiding the waste of diaphragm material caused by inaccurate electrode cutting signals.
Smart Images
Figure CN223476623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tracking mechanism technology, and in particular to a mark hole tracking mechanism. Background Art
[0002] In the battery manufacturing process, in order to ensure the accuracy of electrode cutting, the electrode needs to be marked with a hole during the laser die-cutting stage. The signal is processed by a through-beam optical fiber and an optical fiber amplifier, and the mark hole sensing signal is fed back to the PLC. The PLC then issues a cutting signal to cut the electrode. Through the signal processing and feedback of the PLC, the automatic cutting operation of the electrode can be realized.
[0003] As batteries are processed, fluctuations in the electrode material lines cause spatial changes in the mark holes, leading to inaccurate mark cut-off signals. Furthermore, erroneous operations such as misidentifying the yellow adhesive bonding area on the electrode as a mark hole and cutting it off result in waste of materials like the electrode separator. Additionally, the high skill requirements for manual adjustment mean that errors can also lead to material waste. Therefore, a mechanism is needed to prevent such scrap.
[0004] Therefore, this application aims to address how to prevent inaccurate cut-off signals caused by spatial changes in the mark holes, thus avoiding waste of electrode diaphragm material, under conditions of material line fluctuations. Utility Model Content
[0005] The main purpose of this invention is to provide a mark hole tracking mechanism, which aims to avoid inaccurate cut-off signals caused by changes in the space of the mark hole, thus avoiding waste of electrode diaphragm material.
[0006] To achieve the above objectives, this utility model proposes a mark hole tracking mechanism, comprising:
[0007] An edge detection device detects the edge signal of the electrode and transmits the error value of the edge signal to the controller;
[0008] A through-beam sensor, disposed on the mark hole line of the electrode transmission, detects the mark hole signal of the electrode; and
[0009] A servo device, the output of which is fixed to the through-beam sensor, drives the through-beam sensor to move toward the mark hole of the electrode plate according to the error value received by the controller.
[0010] In the above scheme, after receiving the error signal, the controller can determine the specific value of the deviation of the electrode sheet during the roller conveying process, and then feed the controller back to the servo device. The servo device drives the through-beam sensor to move back and forth, so as to align the through-beam sensor with the mark hole of the electrode sheet, and avoid the through-beam sensor aligning with the yellow glue on the electrode sheet, which would cause misjudgment and result in inaccurate electrode sheet cutting.
[0011] Furthermore, the edge detection component includes a mounting bracket and an edge sensor disposed on the mounting bracket, the edge sensor being disposed on the side of the electrode located at the mark hole.
[0012] Furthermore, a screw is rotatably mounted on the mounting bracket, and a third slider is driven by the thread on the outer wall of the screw. The third slider is fixed to the edge sensor. Rotation of the screw causes the third slider to move back and forth, thereby adjusting the edge sensor's proximity to or distance from the electrode. A micrometer is also provided at one end of the screw for fine adjustment of the edge sensor's position.
[0013] Furthermore, the servo device includes a sliding assembly and a motor driving the sliding assembly. A bracket is mounted on the sliding portion of the sliding assembly, and one end of the bracket near the electrode is fixed to the through-beam sensor. A screw or lead screw is fixedly mounted on the output shaft of the motor, driving the sliding assembly to move back and forth, thereby realizing the reciprocating motion of the bracket and adjusting the position of the through-beam sensor at the electrode, thus adjusting the position between the through-beam sensor and the mark hole.
[0014] Furthermore, the bracket has an arc groove at one end near the electrode, and the through-beam sensor is installed in the arc groove. The through-beam sensor can be fine-tuned through the arc groove; this adjustment can be done manually to ensure the sensor's precise position.
[0015] Furthermore, the sliding assembly includes a first slide rail and a first slider, the motor drives the first slider to slide back and forth on the first slide rail, and the first slider is fixed to the bracket.
[0016] Furthermore, the sliding assembly includes a first slide rail, a first slider, a fixed rod, and a second slider. The motor drives the first slider to slide back and forth on the first slide rail. The second slider is fixed to the first slider and to the bracket.
[0017] Furthermore, the sliding assembly also includes a fixing rod, which slides relative to the second slider.
[0018] Furthermore, a fixing plate is installed on the same side of both the through-beam sensor and the edge detection element.
[0019] The above technical solution has the following advantages:
[0020] This invention uses an edge sensor to detect the deviation position of the electrode transmission and monitors the offset error in real time. After receiving the error, the controller transmits the error signal to the servo device, which drives the through-beam sensor to move back and forth. This effectively adjusts the relationship between the through-beam sensor and the mark hole position of the electrode, which can greatly improve the accuracy of the mark hole capture of the electrode and avoid fluctuations in the position of the electrode in space, which would cause inaccurate cut-off signal and waste of electrode membrane material. Attached Figure Description
[0021] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:
[0022] Figure 1 This is a first-view structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the second-view structure of the present invention;
[0024] Figure 3 This is a schematic diagram of the servo device of this utility model.
[0025] In the diagram: 1. Fixing plate; 2. Electrode; 3. Through-beam sensor; 4. Servo device; 401. Motor; 402. First slide rail; 403. First slider; 404. Fixing rod; 405. Second slider; 406. Bracket; 407. Arc groove; 5. Edge detection component; 501. Mounting bracket; 502. Screw; 503. Third slider; 504. Edge sensor. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.
[0027] like Figure 1 and Figure 2As shown, a mark hole tracking mechanism includes an edge detection component 5, a through-beam sensor 3, and a servo device 4. The edge detection component 5 detects the edge signal of the electrode 2 and transmits the error value of the detected edge signal to the controller. The through-beam sensor 3 is located on the mark hole line of the electrode 2 and detects the mark hole signal of the electrode 2. The output end of the servo device 4 is fixed to the through-beam sensor 3. The servo device 4 drives the through-beam sensor 3 to move toward the mark hole of the electrode 2 according to the error value received by the controller. The edge sensor 504 is used to detect the edge of the electrode 2. Its purpose is to detect the deviation error of the electrode 2. Specifically, an image sensor can be used to detect the specific edge error signal. After receiving the error signal, the controller can determine the specific value of the deviation of the electrode 2 during the roller conveying process. The controller feeds back to the servo device 4, which drives the through-beam sensor 3 to move back and forth, thereby aligning the through-beam sensor 3 with the mark hole of the electrode 2 and avoiding the through-beam sensor 3 aligning with the yellow glue on the electrode 2, which would cause misjudgment and result in inaccurate cutting of the electrode 2.
[0028] The controller can be a PLC. The PLC receives the edge signal from the edge detection element 5 through its input. The PLC processes and amplifies the signal, and outputs it to the servo device 4. The servo device 4 drives the through-beam sensor 3 to move to the corresponding deviation position. The edge sensor 504 detects the edge position of the electrode 2. The signal is then amplified and transmitted to the PLC. The PLC adjusts the position of the servo device 4 according to the threshold change. If the offset is greater than the set threshold, the PLC adjusts the position of the edge sensor 504 until the edge sensor 504 reaches the set position. The entire edge sensor 504 is under real-time monitoring and adjustment. If the offset is less than the set threshold, the servo device 4 stops adjusting and maintains a stable state, ensuring that the through-beam sensor 3 can approach the mark hole of the electrode 2.
[0029] like Figure 1 As shown, the edge detection component 5 includes a mounting bracket 501 and an edge sensor 504 disposed on the mounting bracket 501. The edge sensor 504 is disposed on the side of the electrode 2 located at the mark hole. The edge sensor 504 detects the position of one side of the electrode 2 to obtain the error value of the edge signal of the electrode 2. In this application, the edge sensor 504 is preferably placed on the side of the electrode 2 close to the mark hole, but it can also be placed on the opposite side of the electrode 2 and the mark hole.
[0030] like Figure 1As shown, a screw 502 is rotatably mounted on the mounting bracket 501. The screw 502 has a threaded drive on its outer wall to drive a third slider 503. The third slider 503 is fixed to the edge sensor 504. The rotation of the screw 502 can drive the third slider 503 to move back and forth, thereby adjusting the edge sensor 504 to move closer to or further away from the electrode 2. A micrometer is also provided at one end of the screw 502, which can finely adjust the position of the edge sensor 504.
[0031] like Figure 2 and Figure 3 As shown, the servo device 4 includes a sliding assembly and a motor 401 that drives the sliding assembly. The sliding part of the sliding assembly is equipped with a bracket 406. One end of the bracket 406 near the electrode 2 is fixed to the through-beam sensor 3. The output shaft of the motor 401 is fixedly equipped with a screw 502 or a lead screw. The screw 502 or lead screw drives the sliding assembly to move back and forth, thereby realizing the reciprocating motion of the bracket 406. The position of the through-beam sensor 3 at the electrode 2 can be adjusted, thereby adjusting the position between the through-beam sensor 3 and the mark hole.
[0032] To further improve the adjustment method of the through-beam sensor 3, the bracket 406 is also provided with an arc groove 407 at one end near the electrode 2. The through-beam sensor 3 is installed in the arc groove 407. The through-beam sensor 3 can be finely adjusted through the arc groove 407. This process can be adjusted manually to ensure the specific position of the through-beam sensor 3.
[0033] As an example of this application:
[0034] like Figure 2 and Figure 3 As shown, the sliding assembly includes a first slide rail 402 and a first slider 403. The motor 401 drives the first slider 403 to slide back and forth on the first slide rail 402. The first slider 403 is fixed to the bracket 406. The motor 401 drives the first slider 403 to press against the first slide rail 402 and move back and forth through the screw 502 or lead screw. The first slider 403 then drives the bracket 406 to move back and forth, thereby adjusting the position of the mark hole of the through-beam sensor 3 in the electrode 2, ensuring that the through-beam sensor 3 can accurately detect the position of the mark hole.
[0035] As an embodiment of this application:
[0036] like Figure 2 and Figure 3As shown, the sliding assembly includes a first slide rail 402, a first slider 403, a fixed rod 404, and a second slider 405. The motor 401 drives the first slider 403 to slide back and forth on the first slide rail 402. The second slider 405 is fixed to the first slider 403 and to the bracket 406. The motor 401 drives the first slider 403 to press against the first slide rail 402 and move back and forth through the screw 502 or lead screw. The first slider 403 then drives the second slider 405 to move back and forth. The second slider 405 drives the bracket 406 to move back and forth, thereby enabling the bracket 406 to move the through-beam sensor 3 closer to or further away from the mark hole of the electrode 2.
[0037] Based on Embodiment 2, to ensure the stability of the movement of the second slider 405, the sliding assembly also includes a fixed rod 404. The fixed rod 404 slides relative to the second slider 405, and the fixed rod 404 supports the second slider 405. At the same time, the first slider 403 is fixed to the fixed rod 404, thereby mounting the entire servo device 4 on the fixed rod 404. It should be noted that, in order to improve the smoothness of the movement of the fixed rod 404 and the second slider 405, the fixed rod 404 and the second slider 405 move through a slide rail.
[0038] like Figure 1 As shown, a fixing plate 1 is installed on the same side of both the through-beam sensor 3 and the edge detection component 5. The through-beam sensor 3 is indirectly installed on the fixing plate 1 through the connection of the servo device 4 and the fixing rod 404. The edge sensor 504 is indirectly installed on the fixing plate 1 through the mounting bracket 501 via the screw 502 and the third slider 503, thereby determining the positional relationship between the two.
[0039] Edge sensor 504 is susceptible to dust contamination in the environment, leading to errors in its sensing position. Therefore, a sensor cleaning device can be designed to clean the light-receiving and light-emitting sides of the edge sensor 504 through surface holes, achieving closed-loop logic and stable operation of the entire system and reducing manual adjustments. The related mechanism has a large adjustable range; by adjusting the edge sensor 504, it can adapt to different material widths. The mechanism is simple and stable, and can be adapted to different process requirements by modifying the acquisition frequency, adjusting the speed, and adjusting the servo movement range.
[0040] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A mark hole tracking mechanism, characterized in that, include: The edge detection unit (5) detects the edge signal of the electrode (2) and transmits the error value of the edge signal to the controller; A through-beam sensor (3) is provided on the mark hole line transmitted by the electrode (2) and detects the mark hole signal of the electrode (2); as well as The servo device (4) has its output end fixed to the through-beam sensor (3). The servo device (4) drives the through-beam sensor (3) to move toward the mark hole of the electrode (2) according to the error value received by the controller.
2. The mark hole tracking mechanism as described in claim 1, characterized in that, The edge detection component (5) includes a mounting bracket (501) and an edge sensor (504) disposed on the mounting bracket (501), wherein the edge sensor (504) is disposed on the side of the electrode (2) located at the mark hole.
3. The mark hole tracking mechanism as described in claim 2, characterized in that, The mounting bracket (501) is also rotatably provided with a screw (502), and the outer wall thread of the screw (502) drives a third slider (503), which is fixed to the edge sensor (504).
4. The mark hole tracking mechanism as described in claim 1, characterized in that, The servo device (4) includes a sliding assembly and a motor (401) that drives the sliding assembly. A bracket (406) is mounted on the sliding part of the sliding assembly. One end of the bracket (406) near the electrode (2) is fixed to the through-beam sensor (3).
5. The mark hole tracking mechanism as described in claim 4, characterized in that, The bracket (406) is also provided with an arc groove (407) at one end near the electrode (2), and the through-beam sensor (3) is installed in the arc groove (407).
6. The mark hole tracking mechanism as described in claim 4, characterized in that, The sliding assembly includes a first slide rail (402) and a first slider (403). The motor (401) drives the first slider (403) to slide back and forth on the first slide rail (402). The first slider (403) is fixed to the bracket (406).
7. The mark hole tracking mechanism as described in claim 4, characterized in that, The sliding assembly includes a first slide rail (402), a first slider (403), a fixed rod (404), and a second slider (405). The motor (401) drives the first slider (403) to slide back and forth on the first slide rail (402). The second slider (405) is fixed to the first slider (403) and to the bracket (406).
8. The mark hole tracking mechanism as described in claim 7, characterized in that, The sliding assembly further includes a fixed rod (404), which slides relative to the second slider (405).
9. The mark hole tracking mechanism as described in claim 1, characterized in that, A fixing plate (1) is installed on the same side of both the through-beam sensor (3) and the edge detection component (5).