A sheet guiding and positioning mechanism

Abstract

The utility model relates to a kind of guiding sheet feeding positioning mechanism in positioning mechanism field, including transmission assembly and sheet feeding guide plate, transmission assembly is connected with sheet feeding guide plate by connecting piece, so that transmission assembly can drive sheet feeding guide plate to reciprocate, the both ends of sheet feeding guide plate are respectively equipped with sheet feeding end and sheet discharging end, the end of sheet feeding guide plate close to sheet discharging end is equipped with adjusting support, and mounting seat is connected with pairing on adjusting support, the side of mounting seat close to sheet discharging end is equipped with pole lug inductor for detecting pole lug, the utility model is equipped with pole lug inductor in the sheet discharging end of sheet feeding guide plate, realizes the position positioning detection of the pole lug of pole piece, to ensure the stability and consistency of battery clamping blanking, and by the cooperation design of adjusting support and mounting seat, pole lug inductor can be adjusted along sheet discharging end side, enhance the compatibility and adjustment flexibility to different size pole piece.

Description

Technical Field

[0001] This utility model relates to the field of positioning mechanisms, specifically to a guide and feeding positioning mechanism. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries, as core energy storage components, are increasingly widely used in consumer electronics, new energy vehicles, and energy storage systems. In lithium battery cell manufacturing processes, winding production has become the mainstream technology due to its high efficiency and low cost. Its core lies in precisely winding the positive and negative electrode sheets and the separator to form the cell using winding equipment. In this process, the guiding and positioning mechanism is a key component for achieving stable electrode sheet delivery and positioning, directly affecting the cell's energy density, safety, and production yield.

[0003] However, existing guide feeding and positioning mechanisms still have certain shortcomings. While these mechanisms can transport electrode sheets to the subsequent winding mechanism for winding, forming a battery cell, existing feeding and winding mechanisms typically lack detection of the tab position after winding. This makes it difficult to determine and locate the tab position of the battery cell, which hinders the subsequent positioning, clamping, and unloading of the wound battery cell by the unloading clamping mechanism, affecting the stability and consistency of the positioning and unloading of the wound battery cell. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned deficiencies by providing a guiding feeding and positioning mechanism. This mechanism solves the technical problem of how to locate and detect the electrode tabs conveyed by the guiding feeding and positioning mechanism, thereby cooperating with the subsequent unloading and clamping mechanism for precise clamping and unloading, and ensuring the stability and consistency of cell positioning and unloading.

[0005] The objective of this utility model is achieved through the following means:

[0006] A guide and positioning mechanism for feeding wafers includes a transmission assembly and a wafer feeding guide plate. The transmission assembly is connected to the wafer feeding guide plate via a connector, enabling the transmission assembly to drive the wafer feeding guide plate to reciprocate. The wafer feeding guide plate has a fixed stop bar on its side and an adjusting stop bar opposite to the stop bar, forming a wafer feeding channel between the fixed stop bar and the adjusting stop bar. The wafer feeding guide plate has a wafer inlet end and a wafer outlet end at its two ends, respectively. An adjusting bracket is provided at the end of the wafer feeding guide plate near the wafer outlet end, and a mounting base is paired and connected to the adjusting bracket. A tab sensor for detecting tabs is provided on the side of the mounting base near the wafer outlet end. The mounting base can drive the tab sensor to move along the adjusting bracket toward or away from the side of the wafer outlet end.

[0007] Furthermore, as described above, the bottom of the feeding guide plate is connected to a support assembly via a sliding member, allowing the feeding guide plate to reciprocate linearly along the sliding member under the drive of the transmission assembly.

[0008] By connecting the sliding component with the support assembly, the feeding guide plate can maintain a stable motion trajectory when it moves back and forth in a straight line under the drive of the transmission assembly. This avoids deviation in the electrode feeding position caused by movement offset, thus providing a basic positioning guarantee for the subsequent accurate detection of the electrode position by the electrode sensor.

[0009] Furthermore, as described above, the upper surface of the wafer feeding guide plate near the wafer exit end is provided with a vacuum adsorption hole, and the side of the wafer feeding guide plate is provided with a connecting valve that communicates with the vacuum adsorption hole.

[0010] The vacuum adsorption hole is connected to the external vacuum system through a connecting valve, which can generate an adsorption force on the surface of the electrode during the electrode conveying process. This effectively prevents the electrode from sliding or warping during movement, ensuring that the electrode always adheres to the upper surface of the feeding guide plate and maintains the correct posture, thereby improving the stability of the tab sensor in detecting the tab position.

[0011] Furthermore, as described above, the fixed stop bar is installed on the side of the feeding guide plate, the top of the fixed stop bar is higher than the upper surface of the feeding guide plate, the adjustable stop bar is installed on the feeding guide plate through the mounting hole, and the adjustable stop bar can move closer to or further away from the fixed stop bar.

[0012] The adjustable baffle forms a feeding channel with the fixed baffle by moving, and the distance between the two can be adjusted according to the width of the electrode to meet the feeding needs of electrodes of different specifications. At the same time, the design of the top of the fixed baffle being higher than the upper surface of the feeding guide plate can effectively limit the side of the electrode, prevent the electrode from shifting laterally during the feeding process, and ensure that the electrode tab position is always within the preset detection area.

[0013] Furthermore, as described above, one end of the adjusting bracket has a connecting part that connects to the fixed stop bar, and the other end of the adjusting bracket has an adjusting part. The adjusting part has a through adjusting groove that extends toward the feeding guide plate. The side of the mounting base has a sliding groove that matches the adjusting part, and the bottom wall of the sliding groove has a connecting hole, so that the adjusting part is connected to the connecting hole by passing through the adjusting groove with a fixing member.

[0014] The adjustment bracket engages with the sliding groove of the mounting base through the adjustment groove, and uses a fixing component to position and fix the connection hole and the adjustment groove. This allows the mounting base to flexibly adjust the position of the tab sensor to the side of the output end. This structure can adapt to the detection requirements of different tab lengths or tab positions, ensuring that the tab sensor is always aligned with the tab output position, thus improving the adaptability and accuracy of tab position detection.

[0015] Furthermore, as described above, one end of the mounting base extends toward the wafer exit end and forms a detection section. An electrode sensor is mounted on the detection section, so that the electrode sensor can be used to detect the wafer delivery electrode exiting from the wafer exit end along the wafer delivery channel.

[0016] The detection section extending from one end of the mounting base is directly close to the side of the output end, allowing the tab sensor to be close to the output position of the electrode. When the electrode is output from the output end along the feeding channel, the tab sensor can detect the tab immediately and feed the position signal back to the control system, providing a precise tab position positioning basis for the subsequent unloading and clamping mechanism, thereby ensuring the stability and consistency of the cell unloading and clamping.

[0017] Further, as described above, the transmission assembly includes a drive motor, a lead screw, and an adapter. The axial extension direction of the lead screw extends horizontally with the feeding guide plate. The lead screw is connected to the adapter via a nut, which can drive the adapter to reciprocate along the axial direction of the lead screw. The connecting component is composed of a linkage rod, one end of which is connected to the feeding guide plate, and the other end of which is connected to the adapter. The output shaft of the drive motor is connected to one end of the lead screw via a driving component.

[0018] The drive motor is connected to the adapter via a lead screw, which converts the rotary motion into the linear reciprocating motion of the feeding guide plate. The axial extension direction of the lead screw is consistent with the horizontal extension direction of the feeding guide plate, ensuring the accuracy and synchronization of the feeding guide plate movement, thereby ensuring the consistency between the electrode position detected by the electrode tab sensor and the subsequent feeding position.

[0019] The beneficial effects of this utility model are as follows: The feeding channel structure formed by the fixed baffle and the adjusting baffle can adapt to the feeding requirements of electrode sheets of different widths by adjusting the position of the adjusting baffle, ensuring that the electrode sheets maintain a stable linear motion trajectory during the feeding process and avoiding electrode tab positioning errors caused by electrode sheet offset. At the same time, by setting an electrode tab sensor at the feeding guide plate at the feeding end, the electrode tab position can be detected, solving the technical defect of lacking electrode tab position detection in the prior art. This provides accurate electrode tab position information for subsequent cell unloading and clamping, ensuring the stability and consistency of cell unloading and clamping. Furthermore, through the cooperative design of the adjusting bracket and the mounting base, the electrode tab sensor can be adjusted along the side of the feeding end, which can adapt to the electrode tab detection requirements of electrode sheets of different specifications and enhance the compatibility and adjustment flexibility of electrode sheets of different sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 This is a side view of this embodiment;

[0022] Figure 3 This is a perspective view of this embodiment;

[0023] Figure 4 for Figure 3 A magnified view of part A in the diagram;

[0024] Figure 5 This is a partial structural diagram of this embodiment;

[0025] Figure 6 for Figure 5 A magnified view of part B in the diagram;

[0026] The reference numerals in the figure are as follows:

[0027] 100-Transmission assembly, 101-Drive motor, 102-Lead screw, 103-Adapter, 104-Nut, 105-Linkage rod, 106-Drive component, 1061-Drive wheel, 1062-Rotating wheel, 1063-Belt;

[0028] 200-Wafer feed guide plate, 201-Wafer inlet end, 202-Wafer outlet end, 203-Vacuum adsorption hole;

[0029] 300 - Fixed stop bar; 400 - Adjustable stop bar; 401 - Mounting hole;

[0030] 500 - Adjustment bracket, 501 - Connecting part, 502 - Adjustment part, 503 - Adjustment groove;

[0031] 600-Mounting base, 601-Slide groove, 602-Connecting hole, 603-Detection section;

[0032] 700 - Electrode sensor; 800 - Slider; 900 - Support assembly;

[0033] 1-Winding mechanism, 2-Battery cell, 3-Electrical tab. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] In this embodiment, refer to Figures 1-6The present invention relates to a guide and feeding positioning mechanism, comprising a transmission assembly 100 and a feeding guide plate 200. The transmission assembly 100 is connected to the feeding guide plate 200 via a connector, enabling the transmission assembly 100 to drive the feeding guide plate 200 to reciprocate. A fixed stop bar 300 is provided on the side of the feeding guide plate 200, the top of which protrudes above the upper surface of the feeding guide plate 200. An adjusting stop bar 400 is provided on the upper surface of the feeding guide plate 200, opposite to the stop bar, so that the fixed stop bar 300 and the adjusting stop bar... A wafer feeding channel is formed between 400. The wafer feeding guide plate 200 has a wafer inlet end 201 and a wafer outlet end 202 at its two ends. An adjustment bracket 500 is provided at the end of the wafer feeding guide plate 200 near the wafer outlet end 202. A mounting base 600 is connected to the adjustment bracket 500. A tab sensor 700 for detecting tabs is provided on the side of the mounting base 600 near the wafer outlet end 202. The mounting base 600 can drive the tab sensor 700 to move along the adjustment bracket 500 toward or away from the side of the wafer outlet end 202.

[0038] Reference Figures 1-3 The bottom of the feeding guide plate 200 is connected to the support assembly 900 via the sliding member 800, so that the feeding guide plate 200 can move linearly back and forth along the sliding member 800 under the drive of the transmission assembly 100.

[0039] By connecting the sliding member 800 with the support component 900, the feeding guide plate 200 can maintain a stable motion trajectory when it moves back and forth in a straight line under the drive of the transmission component 100. This avoids deviation in the electrode conveying position due to movement offset, thus providing a basic positioning guarantee for the subsequent accurate detection of the electrode position by the electrode sensor 700.

[0040] Specifically, in this embodiment, the slider 800 consists of a slider and a slide rail. The slide rail is installed at the bottom of the feeding guide plate 200, and the slide rail and the slider are paired and slidably connected. The slider is connected to the support assembly 900.

[0041] Reference Figures 1-5 The upper surface of the feeding guide plate 200 near the output end 202 is provided with a vacuum adsorption hole 203, and the side of the feeding guide plate 200 is provided with a connecting valve that communicates with the vacuum adsorption hole 203.

[0042] The vacuum adsorption hole 203 is connected to the external vacuum system through the connecting valve, which can generate an adsorption force on the surface of the electrode during the electrode conveying process. This effectively prevents the electrode from sliding or warping during movement, ensuring that the electrode always adheres to the upper surface of the feeding guide plate 200 and maintains the correct posture, thereby improving the stability of the tab sensor 700 in detecting the tab position.

[0043] Reference Figure 5The fixed stop bar 300 is installed on the side of the feeding guide plate 200, and the top of the fixed stop bar 300 is higher than the upper surface of the feeding guide plate 200. The adjustable stop bar 400 is installed on the feeding guide plate 200 through the mounting hole 401, and the adjustable stop bar 400 can move closer to or further away from the fixed stop bar 300.

[0044] The adjustable baffle 400 forms a feeding channel with the fixed baffle 300 by moving, and the distance between the two can be adjusted according to the width of the electrode to meet the feeding requirements of electrodes of different specifications. At the same time, the design of the top of the fixed baffle 300 being higher than the upper surface of the feeding guide plate 200 can effectively limit the side of the electrode, prevent the electrode from shifting laterally during the feeding process, and ensure that the electrode tab position is always within the preset detection area.

[0045] Reference Figure 5 and Figure 6 One end of the adjusting bracket 500 has a connecting part 501 that connects to the fixed stop bar 300, and the other end of the adjusting bracket 500 has an adjusting part 502. The adjusting part 502 has a through adjusting groove 503 that extends toward the feeding guide plate 200. The side of the mounting base 600 has a sliding groove 601 that matches the adjusting part 502, and the bottom wall of the sliding groove 601 has a connecting hole 602, so that the adjusting part 502 is connected to the connecting hole 602 by bolts passing through the adjusting groove 503.

[0046] The adjustment bracket 500 engages with the sliding groove 601 of the mounting base 600 via the adjustment groove 503, and uses a fixing component to position and fix the connection hole 602 with the adjustment groove 503. This allows the mounting base 600 to flexibly adjust the position of the tab sensor 700 toward the side of the output end 202. This structure can adapt to the detection requirements of different electrode lengths or tab positions, ensuring that the tab sensor 700 is always aligned with the tab output position, thus improving the adaptability and accuracy of tab position detection.

[0047] Specifically, in this embodiment, the adjustment bracket 500 is arranged in an "L" shape.

[0048] Reference Figure 6 One end of the mounting base 600 extends toward the wafer exit end 202 and forms a detection section 603. The tab sensor 700 is mounted on the detection section 603 so that the tab sensor 700 can be used to detect the wafer delivery tabs that are led out from the wafer exit end 202 along the wafer delivery channel.

[0049] The detection section 603, which extends from one end of the mounting base 600, is directly close to the side of the output end 202, allowing the tab sensor 700 to be close to the electrode output position. When the electrode is output from the output end 202 along the feeding channel, the tab sensor 700 can detect the tab immediately and feed the position signal back to the control system, providing a precise tab position positioning basis for the subsequent unloading and clamping mechanism, thereby ensuring the stability and consistency of the cell 2 unloading and clamping.

[0050] Optionally, in some embodiments, the outwardly extending end of the sheet output end 202 is provided with a guide roller for guiding the electrode sheet.

[0051] Reference Figure 2 The transmission assembly 100 includes a drive motor 101, a lead screw 102, and an adapter 103. The axial extension direction of the lead screw 102 extends horizontally with the feeding guide plate 200. The lead screw 102 is connected to the adapter 103 through a nut 104. The nut 104 can drive the adapter 103 to reciprocate along the axial direction of the lead screw 102. The connecting member is composed of a linkage rod 105. One end of the linkage rod 105 is connected to the feeding guide plate 200, and the other end of the linkage rod is connected to the adapter 103. The output shaft of the drive motor 101 is connected to one end of the lead screw 102 through a drive member 106.

[0052] The drive motor 101 is connected to the adapter 103 via the lead screw 102, which converts the rotary motion into the linear reciprocating motion of the feeding guide plate 200. The axial extension direction of the lead screw 102 is consistent with the horizontal extension direction of the feeding guide plate 200, ensuring the accuracy and synchronicity of the movement of the feeding guide plate 200, and ensuring the consistency between the electrode position detected by the electrode tab sensor 700 and the subsequent feeding position.

[0053] Specifically, in this embodiment, the driving component 106 consists of a driving wheel 1061, a rotating wheel 1062, and a belt 1063. The driving wheel 1061 is connected to the output shaft of the driving motor 101, the rotating wheel 1062 is connected to one end of the lead screw 102, and one end of the belt 1063 passes through the driving wheel 1061 and the rotating wheel 1062 in sequence, and is connected in a closed loop with the other end of the belt 1063, so that the rotation of the driving motor 101 can drive the lead screw 102 to rotate synchronously. Both the driving wheel 1061 and the rotating wheel 1062 are synchronous pulleys.

[0054] The working principle in this embodiment is as follows: when the winding needle is winding, the tabs on the electrode sheet will pass through the sensor. When the sensor reads the tab signal, it determines the position of the tab in the cell. When the cell is finally wound, the winding needle is removed and the cell is unloaded by the clamping mechanism. At this time, the cell can be unloaded by rotating the set angle according to the position of the tab before unloading to ensure the consistency of cell unloading.

[0055] The specific usage process in this embodiment is as follows:

[0056] The electrode tab positioning mechanism is installed on the lithium battery winding equipment. The electrode tabs are introduced from the infeed end 201 of the feeding guide plate 200 and transported along the feeding gap before being exited from the outlet end 202. The vacuum suction holes 203 can adsorb and position the electrode tabs within the feeding gap, ensuring the stability and reliability of the electrode tab transport. The position of the adjustable baffle 400 can be adjusted to accommodate electrode tabs of different widths, ensuring that the electrode tabs maintain a stable linear motion trajectory during transport and avoiding tab positioning errors caused by electrode tab offset. Simultaneously, an electrode tab sensor 700 is installed at the outlet end 202 of the feeding guide plate 200 to monitor the electrode tabs. The tab position detection is performed by the tab sensor 700. When the winding mechanism 1 winds the electrode and the separator and performs tail winding, the tab sensor 700 can locate the position of the tab 3 after the electrode is wound to form the cell 2. This provides accurate tab position information for the subsequent unloading and clamping of the cell 2, allowing the set angle to be rotated and adjusted for unloading. This ensures the stability and consistency of the unloading and clamping of the cell 2. Furthermore, through the cooperative design of the adjustment bracket 500 and the mounting base 600, the tab sensor 700 can be adjusted along the side of the sheet exit end 202. This adapts to the tab detection requirements of different specifications of electrode sheets, enhancing the compatibility and adjustment flexibility of electrode sheets of different sizes.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A guiding and positioning mechanism for sheet feeding, comprising a transmission assembly and a sheet feeding guide plate, wherein the transmission assembly is connected to the sheet feeding guide plate via a connecting member, enabling the transmission assembly to drive the sheet feeding guide plate to reciprocate, characterized in that: The wafer feeding guide plate has a wafer inlet end and a wafer outlet end at both ends. An adjustment bracket is provided at the end of the wafer feeding guide plate near the wafer outlet end. A mounting base is connected to the adjustment bracket. A tab sensor for detecting tabs is provided on the side of the mounting base near the wafer outlet end.

2. The guiding and positioning mechanism according to claim 1, characterized in that: The bottom of the feeding guide plate is connected to a support assembly via a sliding member, allowing the feeding guide plate to reciprocate linearly along the sliding member under the drive of the transmission assembly.

3. The guiding and positioning mechanism according to claim 1, characterized in that: The upper surface of the wafer feeding guide plate near the wafer exit end is provided with a vacuum adsorption hole, and the side of the wafer feeding guide plate is provided with a connecting valve that communicates with the vacuum adsorption hole.

4. The guiding and positioning mechanism according to claim 1, characterized in that: The side of the feeding guide plate is provided with a fixed stop bar, and the feeding guide plate is provided with an adjusting stop bar opposite to the stop bar, so that a feeding channel for feeding the film is formed between the fixed stop bar and the adjusting stop bar. The fixed stop bar is installed on the side of the feeding guide plate, and the top of the fixed stop bar is higher than the upper surface of the feeding guide plate. The adjusting stop bar is installed on the feeding guide plate through the mounting hole, and the adjusting stop bar can move closer to or further away from the fixed stop bar.

5. The guide and feeding positioning mechanism according to claim 4, characterized in that: One end of the adjusting bracket has a connecting part that connects to the fixed stop bar, and the other end of the adjusting bracket has an adjusting part. The adjusting part has a through adjusting groove that extends toward the feeding guide plate. The side of the mounting base has a sliding groove that matches the adjusting part, and the bottom wall of the sliding groove has a connecting hole, so that the adjusting part can be connected to the connecting hole by passing through the adjusting groove with a fixing member.

6. The guiding and positioning mechanism for feeding and positioning pieces according to claim 5, characterized in that: One end of the mounting base extends toward the wafer exit end and forms a detection section. The tab sensor is mounted on the detection section so that the tab sensor can be used to detect the wafer delivery tabs that are led out from the wafer exit end along the wafer delivery channel.

7. The guide and feeding positioning mechanism according to any one of claims 1-6, characterized in that: The transmission assembly includes a drive motor, a lead screw, and an adapter. The axial extension direction of the lead screw extends horizontally with the feeding guide plate. The lead screw is connected to the adapter via a nut. The nut can drive the adapter to reciprocate along the axial direction of the lead screw. The connecting component is composed of a linkage rod. One end of the linkage rod is connected to the feeding guide plate, and the other end of the linkage plate is connected to the adapter. The output shaft of the drive motor is connected to one end of the lead screw via a driving component.

8. A guide and feeding positioning mechanism according to any one of claims 1-6, characterized in that: The mounting base can move the tab sensor along the adjusting bracket toward or away from the side of the output end.

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