Coiled material tailing control device

Abstract

The utility model belongs to the technical field of lithium battery production, and discloses a coiled material tailing control device which comprises a winding module, an unwinding module and a controller, the winding module comprises a first material conveying roller, a winding drum and a marking machine, and an encoder is arranged at one end of the first material conveying roller; the marking machine is arranged towards the coiled material on the first material conveying roller so as to paste a label on the coiled material; the unwinding module comprises an unwinding reel, a reel changing device and a first detector, the first detector faces a coiled material on the unwinding reel and is used for detecting a label, and the controller is in communication connection with the encoder, the marking machine and the first detector. The first detector sends out the roll changing signal after detecting the label printed by the marking machine, the allowance of follow-up roll changing of the coiled material is accurately controlled, waste can be avoided, sudden downtime of the roll changing device can be avoided, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to a coil tail material control device. Background Technology

[0002] As the automation level of lithium battery production equipment increases, the requirements for automatic electrode rewinding are also becoming more stringent. In current battery manufacturing processes, electrode sections are all in roll form. An unwinding device continuously feeds the wound material to subsequent processing units. This unwinding device typically includes two unwinding drums, one carrying the working material and the other the spare material, achieving uninterrupted continuous feeding through alternating rewinding. However, current unwinding devices on the market typically use ultrasonic or photoelectric sensors to detect the roll diameter during the rewinding process, combined with algorithms to trigger automatic rewinding warnings. Manual judgment is then required for rewinding. Due to the accuracy errors of ultrasonic sensors and the vibration of the drum itself, precise control of the tail material is difficult. If the roll diameter is too large during rewinding, it will result in excessive tail material, easily leading to material waste and increased production costs. Conversely, if the roll diameter is too small, it will result in insufficient tail material, causing the rewinding device to suddenly malfunction and impacting production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a roll material tail material control device with simple structure, low maintenance cost, and the ability to accurately control the roll material tail material, avoid material waste and ensure production efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution: a roll material tail material control device, including a winding module, an unwinding module, and a controller. The winding module includes a first feed roller, a winding drum, and a marking machine. The first feed roller and the winding drum are arranged sequentially along the transmission direction of the wound roll material. An encoder is provided at one end of the first feed roller. The marking machine is positioned facing the roll material on the first feed roller to affix a label to the roll material. The unwinding module includes an unwinding drum, a roll changing device, and a first detector. The unwinding drum and the roll changing device are arranged sequentially along the transmission direction of the roll material. The first detector is positioned facing the roll material on the unwinding drum and is used to detect the label. The controller is communicatively connected to the encoder, the marking machine, the roll changing device, and the first detector.

[0005] Preferably, the winding module further includes a second detector located between the first feed roller and the winding drum and facing the roll material.

[0006] Preferably, the marking machine is located on one side of one end of the first feed roller to affix the label to the edge of the roll material, the first detector is located diagonally above the unwinding drum, and the first detector and the label are located on the same side of the roll material.

[0007] Preferably, the unwinding module further includes a bracket, the unwinding drum is rotatably mounted on the bracket, and the first detector is obliquely mounted on the bracket.

[0008] Preferably, the label is configured as a color mark different from the color of the roll material, and the first detector is configured as a color mark sensor.

[0009] Preferably, the color mark is polygonal or circular in shape.

[0010] Preferably, the label is configured as a barcode or a QR code, and the first detector is configured as a barcode scanner.

[0011] Preferably, a second feed roller is provided between the first feed roller and the winding drum, and the roll material is tensioned between the first feed roller and the second feed roller.

[0012] Preferably, there are multiple second transfer rollers, which are arranged sequentially along the transport direction of the roll material.

[0013] The beneficial effects of this invention are as follows: By setting up an encoder, a marking machine, and a controller, the user can preset the winding length of the roll material through the controller. The encoder can accurately detect the belt feed step length on the first feed roller. When the belt feed compensation reaches the preset winding length, the encoder feeds back the length signal to the controller. The controller controls the marking machine to accurately mark at the preset labeling position and distance based on the signal from the encoder, ensuring that the length of the roll material on the winding drum is consistent each time it is marked. By setting up a first detector, the first detector only sends a roll change signal after detecting the label applied by the marking machine. The controller accurately controls the length of the roll material unwound from the unwinding drum each time based on the roll change signal, thereby accurately controlling the allowance during subsequent roll changes. This avoids waste caused by excessive tail material and prevents sudden shutdown of the roll changer, improving production efficiency. In addition, the encoder, marking machine, and first detector have a simple structure and are easy to operate, which can effectively reduce the complexity of the device and reduce production costs. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the winding module of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the unwinding module of this utility model.

[0016] In the diagram: 100, winding module; 110, first feed roller; 120, winding drum; 130, marking machine; 140, second detector; 150, second feed roller; 160, encoder; 200, unwinding module; 210, support; 220, unwinding drum; 230, first detector. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] Reference Figure 1 and Figure 2As shown, a roll material tail material control device according to an embodiment of this application includes a winding module 100, an unwinding module 200, and a controller. The winding module 100 includes a first transfer roller 110, a winding drum 120, and a marking machine 130. The first transfer roller 110 and the winding drum 120 are arranged sequentially along the transport direction of the wound roll material. Optionally, the roll material includes, but is not limited to, copper foil, aluminum foil, carbon-coated aluminum foil, coated positive and negative electrode sheets, etc., which will not be described in detail here. An encoder 160 is provided at one end of the first transfer roller 110, and the marking machine 130 is positioned facing the roll material on the first transfer roller 110 to affix a label to the roll material. In this embodiment, the roll material passes over the upper surface of the first transfer roller 110, and the marking machine 130 is correspondingly installed on the upper side of the first transfer roller 110. The unwinding module 200 includes a support 210, an unwinding drum 220, a roll changing device, and a first detector 230. The first detector 230 is mounted on and faces the roll material on the unwinding drum 220 and is used to detect labels. Optionally, the unwinding module 200 typically includes two unwinding drums 220. If the two unwinding drums 220 alternately switch between new and old material for unwinding, then the first detector 230 is installed on one side of each of the two unwinding drums 220, and the two first detectors 230 work alternately for detection. If the two unwinding drums 220 unwind material sequentially, then only the first detector 230 needs to be installed on the side of the unwinding drum 220 at the front end of the roll material transport direction. This is specifically noted to avoid misunderstanding. The controller is communicatively connected to the encoder 160, the marking machine 130, the roll changing device, and the first detector 230. In this embodiment, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the encoder 160, the marking machine 130, the roll changing device, and the first detector 230 to achieve their functions.

[0022] Understandably, by setting up the encoder 160, marking machine 130, and controller, the user can preset the winding length of the roll material through the controller. The encoder 160 can accurately detect the belt feed step length on the first feed roller 110. When the belt feed compensation reaches the preset winding length, the encoder 160 feeds back the length signal to the controller. The controller controls the marking machine 130 to accurately mark at the preset labeling position and distance based on the signal fed back by the encoder 160, ensuring that the length of the roll material on the winding drum 120 is consistent each time it is marked. By setting up the first detector 230, the first detector 230 only sends a roll change signal after detecting the label applied by the marking machine 130. The controller accurately controls the length of the roll material unwound by the unwinding drum 220 each time based on the roll change signal, thereby accurately controlling the allowance during subsequent roll changes. This can avoid waste caused by excessive tail material and prevent sudden shutdown of the roll changer, thus improving production efficiency. In addition, the encoder 160, marking machine 130 and first detector 230 have simple structures and are easy to operate, which can effectively reduce the complexity of the device and reduce production costs.

[0023] Furthermore, a second material transfer roller 150 is provided between the first material transfer roller 110 and the winding drum 120, and the roll material is tensioned between the first material transfer roller 110 and the second material transfer roller 150, that is, the first material transfer roller 110 and the second material transfer roller 150 respectively abut against both sides of the roll material.

[0024] By setting a second transfer roller 150, the first transfer roller 110 and the second transfer roller 150 work together to tension the roll material, which can ensure the surface tension of the roll material and prevent the roll material from wrinkling, causing the labeling position to shift and affecting the accuracy of subsequent inspection.

[0025] Furthermore, multiple second transfer rollers 150 are provided, and the multiple second transfer rollers 150 are arranged sequentially along the conveying direction of the roll material, while the first transfer roller 110 and the multiple second transfer rollers 150 are staggered in the vertical direction.

[0026] By setting multiple second feed rollers 150, the roll material can be kept flat and under tension during long-distance transmission. In addition, the user can adjust the distance 'a' between the first feed roller 110 and the take-up drum 120 according to the actual needs of the take-up module 100 and the overall distance of the equipment. The number of second feed rollers 150 between the first feed roller 110 and the take-up drum 120 can improve the practicality of the roll material tail control device.

[0027] Reference Figure 1As shown, it can be understood that the take-up module 100 also includes a second detector 140, which is located between the first feed roller 110 and the take-up drum 120 and is positioned toward the roll material. Optionally, the second detector 140 may be located above one of the second feed rollers 150, thereby utilizing the mounting bracket of the second feed roller 150 to mount the second detector 140, simplifying the structure and facilitating the loading and unloading of the second detector 140.

[0028] By setting a second detector 140, the second detector 140 can detect the label in advance before the roll material is wound to the winding roll 120, avoiding the labeling machine 130 from misapplying or missing labels, realizing error prevention in the labeling process, avoiding problems such as untimely roll change caused by the first detector 230 failing to detect the label, and ensuring the accuracy of the roll material tail material control device.

[0029] The label is affixed above the roll material, and the first detector 230 is positioned above the winding drum 120. Although the label can be detected, the distance between the first detector 230 and the label may affect the detection result of the first detector 230 when the roll material has a different diameter. For example, if the roll diameter is small, the first detector 230 may not be able to detect it, and if the roll diameter is too large, the first detector 230 may not be able to recognize it.

[0030] Reference Figure 1 and Figure 2 As shown, it can be understood that the marking machine 130 is located on one side of one end of the first feed roller 110 to affix the label to the edge of the roll material, the first detector 230 is located diagonally above the unwinding drum 220, and the first detector 230 and the label are located on the same side of the roll material.

[0031] The marking machine 130 is positioned on one side of the end of the first feed roller 110. When the marking machine 130 is working, it can affix a label to the blank edge area of ​​one side (left or right) of the roll material. Subsequently, the first detector 230 is installed on the upper side of the unwinding drum 220. The first detector 230 can accurately detect the label at the edge of the roll material within the conical area, showing the influence of different roll diameters on the recognition accuracy of the first detector, expanding the applicability of the roll material tail control device, further improving the practicality of the roll material tail control device, and ensuring the consistency and accuracy of the detection results of the first detector 230.

[0032] Reference Figure 2 As shown, the unwinding module 200 also includes a bracket 210, which is horizontally shaped like an I-beam. The unwinding drum 220 is rotatably mounted on the bracket 210, and the first detector 230 is obliquely mounted on the top of one side of the bracket 210.

[0033] The first detector 230 is integrated into the bracket 210 of the unwinding drum 220, eliminating the need for additional support and installation structures and improving the integration of the unwinding module 200.

[0034] Furthermore, the label is configured as a color mark different from the roll material color, and the first detector 230 is configured as a color mark sensor.

[0035] Configuring the label as a color mark has two advantages. First, the color mark color is different from the roll material color, which can ensure the distinction between the color mark and the roll material and facilitate the identification of the color mark sensor. Second, it can simplify the label structure and reduce the label manufacturing cost.

[0036] The color mark can be polygonal or circular in shape. For example, the shape of the color mark can be set as a rectangle, trapezoid, or triangle, etc., which will not be elaborated here.

[0037] Setting the color mark to a polygon or circle can further improve the distinction between the color mark and the roll material, making it easier for the color mark sensor to accurately identify it, and further improving the accuracy of the detection results of the first detector 230 and the second detector 140.

[0038] In other embodiments, the label is configured as a barcode or QR code, and the first detector 230 is configured as a barcode scanner.

[0039] By configuring the label as a barcode or QR code, users can write physical information about the roll material, such as material, length, and width, into the barcode or QR code. The scanner can then recognize the label and read the information from the barcode or QR code, making it easier for users to manage and use the roll material and improving the user experience.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A roll material tailings control device, characterized in that, include: The winding module (100) includes a first feed roller (110), a winding drum (120), and a marking machine (130). The first feed roller (110) and the winding drum (120) are arranged sequentially along the transmission direction of the winding roll. An encoder (160) is provided at one end of the first feed roller (110). The marking machine (130) is positioned facing the roll on the first feed roller (110) to affix a label to the roll. An unwinding module (200) includes an unwinding drum (220), a roll changing device, and a first detector (230). The unwinding drum (220) and the roll changing device are arranged sequentially along the transport direction of the roll material. The first detector (230) is positioned facing the roll material on the unwinding drum (220). The first detector (230) is used to detect the label. The controller is communicatively connected to the encoder (160), the marking machine (130), the roll changing device and the first detector (230).

2. The roll material tailings control device according to claim 1, characterized in that, The winding module (100) further includes a second detector (140), which is located between the first feed roller (110) and the winding drum (120) and is oriented toward the roll material.

3. The roll material tailings control device according to claim 1, characterized in that, The marking machine (130) is located on one side of one end of the first feed roller (110) to affix the label to the edge of the roll material. The first detector (230) is located diagonally above the unwinding drum (220), and the first detector (230) and the label are located on the same side of the roll material.

4. The roll material tailings control device according to claim 3, characterized in that, The unwinding module (200) also includes a bracket (210), the unwinding drum (220) is rotatably mounted on the bracket (210), and the first detector (230) is obliquely mounted on the bracket (210).

5. The roll material tailings control device according to any one of claims 1-4, characterized in that, The label is configured as a color mark different from the color of the roll material, and the first detector (230) is configured as a color mark sensor.

6. The roll material tailings control device according to claim 5, characterized in that, The color mark is polygonal or circular in shape.

7. The roll material tailings control device according to any one of claims 1-4, characterized in that, The label is configured as a barcode or a QR code, and the first detector (230) is configured as a barcode scanner.

8. The roll material tailings control device according to claim 1 or 2, characterized in that, A second feed roller (150) is provided between the first feed roller (110) and the winding drum (120), and the roll material is tensioned between the first feed roller (110) and the second feed roller (150).

9. The roll material tailings control device according to claim 8, characterized in that, Multiple second transfer rollers (150) are provided, and the multiple second transfer rollers (150) are arranged sequentially along the conveying direction of the roll material.

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