Material belt product deviation rectifying mechanism

Abstract

The utility model relates to a material belt product deviation rectifying mechanism. Comprising a rubberizing module, a transmission module, an ultrasonic sensor used for detecting the position deviation of a material belt, an optical deviation corrector used for detecting the position deviation of a product, and a control unit capable of calculating the difference value between the ultrasonic sensor and the optical deviation corrector in real time according to feedback data of the ultrasonic sensor and the optical deviation corrector and controlling the transmission module to operate to compensate the difference value; the transmission module comprises a motor, a lead screw and a lead screw nut, the lead screw is perpendicular to the product conveying direction and parallel to the surface of a product, and the rubberizing module is fixedly installed on the lead screw nut; the ultrasonic wave sensor is positioned between two adjacent rollers of the rubberizing module; the optical deviation corrector is located on one side of the first rubberizing roller of the rubberizing module and located on the upstream of the first rubberizing roller in the product conveying direction. Deviation between the adhesive tape and a product is detected through the sensor, and deviation is compensated through the transmission module to achieve deviation correction.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole pieces, in particular to a material strip product deviation correction mechanism. Background Art

[0002] With the development of science and technology, lithium batteries have become a mainstream battery with a wide range of applications, covering energy storage, power, consumption, special and other aspects, providing strong impetus for the development of human society.

[0003] Lithium battery cells are made up of wound positive and negative electrodes and a separator. During the manufacturing process, adhesive tape is applied to the left and right edges of the coating on the positive and negative electrodes, as well as the back of the electrodes. This prevents damage to the ion exchange membrane at the junction of the positive and negative aluminum and copper foils, and prevents separator damage and short circuits. Existing techniques typically use manual labor with mechanical assistance to apply green adhesive tape to the electrodes. However, this method cannot precisely control the adhesive tape placement, resulting in a low yield rate. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is to provide a material strip product correction mechanism that can ensure the accuracy of the fitting between the material strip and the product.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a material strip product correction mechanism, which is characterized in that it includes a gluing module for sticking the material strip to the product, a transmission module, an ultrasonic sensor for detecting the position deviation of the material strip, an optical corrector for detecting the position deviation of the product, and a control unit that can calculate the difference between the ultrasonic sensor and the optical corrector in real time based on the data fed back by the two and control the operation of the transmission module to compensate for the difference; the gluing module includes a support plate, a reel, several rollers, a first gluing roller, a first heater and a second gluing roller, the support plate is vertically arranged and perpendicular to the product surface, the reel, several rollers, the first gluing roller , the first heater and the second glue roller are all installed on the support plate, and the first glue roller, the first heater and the second glue roller are arranged in sequence along the product transmission direction, and the several rollers are located between the unwinding disk and the first glue roller; the transmission module includes a motor, a screw and a screw nut, the screw is connected to the motor in a transmission manner, it is perpendicular to the product transmission direction and parallel to the product surface, the screw nut is installed on the screw, and the support plate is fixed on the screw nut; the ultrasonic sensor is located between two adjacent rollers; the optical deflection corrector is located on one side of the first glue roller and upstream of the first glue roller in the product transmission direction.

[0006] Furthermore, the arrangement direction of the rollers on both sides of the ultrasonic sensor is parallel to the product transmission direction.

[0007] Furthermore, the transmission module further includes a guide rail, the guide rail is parallel to the lead screw, and the support plate is slidably mounted on the guide rail.

[0008] Furthermore, the gluing module further includes a second heater, which is mounted on the support plate and located between the first gluing roller and the optical deflection corrector in the product transmission direction.

[0009] Furthermore, a heating tube is provided in the first glue-applying roller.

[0010] Compared with the existing technology, the utility model detects the deviation of the material strip through an ultrasonic sensor and detects the deviation of the product through an optical deflection corrector. The control unit automatically calculates the difference between the two in real time based on the data provided by the ultrasonic sensor and the optical deflection corrector, and then drives the gluing module to move through the transmission module to compensate for the difference, thereby realizing deviation correction and making the material strip accurately fit the specified position of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model.

[0013] Figure 2 yes Figure 1 A three-dimensional schematic diagram of another angle of the embodiment shown. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the embodiments of the present invention, all other embodiments obtained by those skilled in the art should fall within the scope of protection of the embodiments of the present invention.

[0015] See also Figure 1 and Figure 2 , is a preferred embodiment of the present invention. The material strip product correction mechanism is suitable for lithium battery electrode gluing, including a gluing module, a transmission module, an ultrasonic sensor 1, an optical corrector 2 and a control unit (not shown in the figure).

[0016] The gluing module is used to stick the material tape 100 (i.e., the tape) to the specified position of the product 200 (i.e., the electrode), and includes a support plate 3, a reel 4, a plurality of rollers 5, a first gluing roller 6, a first heater 7, and a second gluing roller 8. The support plate 3 is vertically arranged and perpendicular to the surface of the product 200. The reel 4, the plurality of rollers 5, the first gluing roller 6, the first heater 7, and the second gluing roller 8 are all installed on the support plate 3. The reel 4 is used to wind the material tape 100, and the first gluing roller 6, the first heater 7, and the second gluing roller 8 are moved along the transmission direction of the product 200 (e.g., Figure 1 Several rollers 5 are arranged in sequence (in the direction of the arrow). A plurality of rollers 5 are located between the unwinding reel 4 and the first gluing roller 6. The supply tape 100 is wound onto the first gluing roller 6. A first heater 7 is used to heat-melt the tape 100 so that it adheres to the product 200. It is located between the first gluing roller 6 and the second gluing roller 8 to heat the product 200 and the tape 100 located between the two rollers.

[0017] The transmission module is used to drive the gluing module to translate left and right in a direction perpendicular to the transmission direction of the product 200, and includes a motor 9, a screw (not shown in the figure) and a screw nut (not shown in the figure). The screw is connected to the motor 9 in a transmission manner, which is perpendicular to the transmission direction of the product 200 and parallel to the surface of the product 200. The screw nut is installed on the screw, and the support plate 3 is fixed on the screw nut. When the motor 9 drives the screw to rotate, the screw nut translates along the screw, thereby driving the gluing module to translate. In order to make the gluing module move more smoothly, in this embodiment, the transmission module also includes two guide rails 10, the guide rails 10 are parallel to the screw, and the support plate 3 is slidably mounted on the guide rails 10 through a slider.

[0018] The ultrasonic sensor 1 is used to detect the position deviation of the material strip 100 and feed it back to the control unit. It is located between two adjacent rollers 5. In this embodiment, the arrangement direction of the rollers 5 on both sides of the ultrasonic sensor 1 is parallel to the conveying direction of the product 200.

[0019] The optical deflection corrector 2 is used to detect the position deviation of the product 200 and feed it back to the control unit. It is located on one side of the first glue roller 6 and upstream of the first glue roller 6 in the transmission direction of the product 200.

[0020] The control unit can calculate the difference between the ultrasonic sensor 1 and the optical deflection corrector 2 in real time based on the data fed back from the two, and control the operation of the transmission module to compensate for the difference.

[0021] To ensure that the material strip 100 is more firmly attached to the product 200, in this embodiment, the gluing module further includes a second heater 11. The second heater 11 is mounted on the support plate 3 and is located between the first gluing roller 6 and the optical deflection corrector 2 in the direction of transmission of the product 200. The second heater 11 is used to preheat the product 200 before it enters the area of the first gluing roller 6. When the product 200 passes through the area of the second heater 11, the second heater 11 can heat the product 200 at room temperature to a temperature suitable for gluing. In this way, when the preheated product 200 moves to the first gluing roller 6, the material strip 100 can be attached to the product 200. After the subsequent secondary pressing by the second gluing roller 8, the bonding strength between the product 200 and the material strip 100 can be enhanced to prevent false adhesion.

[0022] In addition, considering that there is a section of the product 200 between the second heater 11 and the first glue roller 6 where the material tape 100 is not adhered, it will cool down after power failure. After power is turned on, the second heater 11 cannot heat this section, and the material tape 100 cannot be adhered to this section of the product 200. In this embodiment, a heating tube (not shown in the figure) is provided in the first glue roller 6. The first glue roller 6 can heat the material tape 100 at the same time when extruding the material tape 100, thereby better ensuring the bonding effect of the adhesive on the material tape 100.

[0023] During the process of attaching the material tape 100, the product 200 is heated by the second heater 11 to a temperature at which the material tape 100 can be adhered. The unwinding disk 4 rotates, and the material tape 100 passes through several rollers 5 and then merges with the product 200 at the first gluing roller 6. The first gluing roller 6 squeezes the material tape 100 to cover the specified position on the surface of the product 200 and heats the material tape 100. Then, the product 200 covered with the material tape 100 is heated by the first heater 7 so that the material tape 100 adheres to the product 200. After that, it is squeezed again by the second gluing roller 8 so that the material tape 100 is firmly attached to the product 200. In the above process, the deviation of the material strip 100 is detected by the ultrasonic sensor 1 and fed back to the control unit, and then the deviation of the product 200 is detected by the optical deflection corrector 2 and fed back to the control unit. The control unit automatically calculates the difference between the two in real time based on the data provided by the ultrasonic sensor 1 and the optical deflection corrector 2, and then drives the gluing module to move through the transmission module to compensate for the difference, thereby realizing deviation correction and making the material strip 100 accurately fit the specified position of the product 200.

[0024] The above embodiments are only preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be regarded as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A strip product correction mechanism, characterized in that: The invention comprises a gluing module for pasting the material strip onto the product, a transmission module, an ultrasonic sensor for detecting the position deviation of the material strip, an optical corrector for detecting the position deviation of the product, and a control unit that can calculate the difference between the two in real time based on the data fed back by the ultrasonic sensor and the optical corrector and control the operation of the transmission module to compensate for the difference; the gluing module comprises a support plate, a reel, several rollers, a first gluing roller, a first heater and a second gluing roller, the support plate is vertically arranged and perpendicular to the surface of the product, the reel, several rollers, the first gluing roller, the first heater and the second gluing roller are all installed on the support plate. The support plate is provided with a first glue-applying roller, a first heater and a second glue-applying roller arranged in sequence along the product transmission direction, and the plurality of rollers are located between the unwinding disk and the first glue-applying roller; the transmission module includes a motor, a screw and a screw nut, the screw is connected to the motor in a transmission manner, and is perpendicular to the product transmission direction and parallel to the product surface, the screw nut is installed on the screw, and the support plate is fixed on the screw nut; the ultrasonic sensor is located between two adjacent rollers; the optical deflection corrector is located on one side of the first glue-applying roller and is located upstream of the first glue-applying roller in the product transmission direction.

2. The strip product correction mechanism according to claim 1, characterized in that: The arrangement direction of the rollers on both sides of the ultrasonic sensor is parallel to the product transmission direction.

3. The strip product correction mechanism according to claim 1, characterized in that: The transmission module further includes a guide rail, which is parallel to the lead screw, and the support plate is slidably mounted on the guide rail.

4. The strip product correction mechanism according to claim 1, wherein: The gluing module further includes a second heater, which is mounted on the support plate and located between the first gluing roller and the optical deflection corrector in the product transmission direction.

5. The strip product deviation correction mechanism according to claim 1, characterized in that: The first glue-applying roller has a heating tube inside.

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