High-precision coating device

Abstract

The utility model relates to the technical field of current collector coating, in particular to a high-precision coating device which comprises an unwinding roller, the unwinding roller conveys a base material to a winding machine through a transmission roller, the high-precision coating device further comprises a roller passing structure, the roller passing structure comprises a plurality of roller bodies close to one end of the unwinding roller, and a laser width gauge used for measuring the width of the base material is correspondingly installed on the roller passing structure; the coating roller is located at the end close to the winding machine, and a laser marking machine and a laser mark reading machine are sequentially installed between the roller passing structure and the coating roller; and the control unit is in signal connection with the laser width gauge, the laser marking machine, the laser mark reading machine and the coating roller. The size of the base material can be detected in real time, and the coating quality and the coating precision of the coating roller are improved.

Description

Technical Field

[0001] The present application relates to the technical field of current collector coating, and in particular to a high-precision coating device. Background Art

[0002] The existing coating equipment in the slurry coating industry is a gravure roller coating mechanism. The current method for controlling the coating width mainly uses ultrasonic correction to control the coating blank width, or a photoelectric correction device, or uses the measurement feedback of the size of the material area and the blank area after coating to feed back the photoelectric signal to the gravure micro-adjustment to achieve the control of the coating width and the blank size. For this reason, we propose a high-precision coating device to achieve a better coating width and blank size control method.

[0003] In the existing slurry coating industry, the coating width and margin size control are affected by the width of the incoming material, and it is impossible to achieve fine control according to the incoming material conditions; the coating width and margin size are adjusted by post-coating size feedback, which has a certain lag; ultrasonic correction, photoelectric correction and other devices are affected by the version of the incoming material substrate and have measurement errors; for the alignment of the AB surfaces of double-sided coating, the existing technology has poor control accuracy; the existing identification of coating margins and material areas uses color difference grayscale recognition, which is affected by the recognition ability; based on the above situation, we urgently need a high-precision coating device to solve this problem. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the present application provides a high-precision coating device.

[0005] The high-precision coating device provided in this application adopts the following technical solution:

[0006] A high-precision coating device comprises an unwinding roller, which transmits a substrate to a winding machine through a transmission roller, and also comprises a roller structure, which comprises a plurality of roller bodies near one end of the unwinding roller, and a laser width meter for measuring the width of the substrate is correspondingly installed on the roller structure; a coating roller, which is located at one end near the winding machine, wherein a laser marker and a laser mark reader are installed in sequence between the roller structure and the coating roller; and a control unit, which is connected to the laser width meter, the laser marker, the laser mark reader and the coating roller signal.

[0007] By adopting the above technical solution, the unwinding roller unwinds the substrate, and the width of the substrate is detected by a laser width meter when the substrate passes through the roller structure. The detected data is transmitted to the control unit, and the control unit transmits the information to the laser marking machine for positioning marking of coating. The laser marking reader reads the mark of the laser marking machine, and after reading the data, it is transmitted to the control unit. The control unit controls the coating roller to coat according to the marking data. After the coating process is completed, it can be rewound after the subsequent drying step.

[0008] Preferably, both ends of the coating roller are rotatably mounted on a slider, the slider is slidably mounted on a bracket, and an adjusting mechanism for adjusting the height of the slider is mounted on the bracket. The bracket is also provided with a scale line for indicating the height of the slider.

[0009] Preferably, the adjusting mechanism comprises a rack on the side of the slider and an adjusting gear driven by the rack, wherein the adjusting gear is sleeved on an adjusting rod, and the adjusting rod is horizontally distributed with the coating roller.

[0010] By adopting the above technical solution, the coating roller is adjusted according to the coating thickness required by the substrate. The operator drives the adjusting gear to rotate by turning the adjusting rod. The adjusting gear engages with the rack on the side of the slider for transmission, thereby adjusting the height of the entire coating roller. The coating roller is driven by an external driving mechanism.

[0011] Preferably, a CCD detection camera is also provided between the coating roller and the winder, and a lifting cylinder for controlling the lifting of the CCD detection camera is installed on the top of the CCD detection camera, and both the CCD detection camera and the lifting cylinder are connected to the control unit signal.

[0012] By adopting the above technical solution, the coated substrate is inspected by a CCD inspection camera, and the lifting cylinder on the top of the CCD inspection camera receives a signal from the control unit to adjust the height of the CCD inspection camera, so that the detection range of the CCD inspection camera can be adapted to the width of the substrate.

[0013] Preferably, the rollers in the roller structure are symmetrically distributed on the upper and lower surfaces of the substrate, and the laser width meter is arranged between the two groups of rollers.

[0014] By adopting the above technical solution, the rollers in the roller mechanism clamp and transmit the substrate from the upper and lower sides of the substrate, and the laser width meter can accurately measure the width of the substrate.

[0015] Preferably, a tension mechanism is also installed between the rollers, including a pressure monitoring roller and a fine-tuning mechanism for adjusting the pressure monitoring roller, wherein the fine-tuning mechanism is located on a side of the pressure monitoring roller away from the substrate.

[0016] Preferably, the fine-tuning mechanism includes a roller frame for installing the pressure monitoring roller and an adjusting screw on the roller frame, wherein the adjusting screw cooperates with the arched bracket on the roller frame for transmission, a thread sleeve adapted to the adjusting screw is installed on the arched bracket, and the adjusting screw is driven by a motor.

[0017] Preferably, the two ends of the roller frame are slidably mounted on the brackets on both sides.

[0018] By adopting the above technical solution, the tension mechanism installed between the roller bodies can monitor the tension of the substrate in real time through the pressure monitoring roller, and when the substrate mechanism changes, the motor in the fine-tuning mechanism is driven to control the lifting and lowering of the roller frame on which the pressure monitoring roller is installed, thereby adjusting the pressure between the pressure monitoring roller and the substrate, so that the substrate tensioning works normally.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. This application uses a laser width meter to monitor the width of the coated substrate in real time, mark the coating area size and the blank area positioning mark, and then use mark reading, automatic point-finding coating control, and data transmission to control the closed-loop adjustment of the plate roller;

[0021] 2. This application uses the unwinding end to measure the full width in real time, detect the incoming material width in real time, accurately control the impact of the incoming material width, realize the size control before coating, without hysteresis, and realize the fine control of the left and right blanks;

[0022] 3. This application uses laser precision measurement, which can be measured on the roller surface, is not affected by poor version, edge collapse and deformation, and improves alignment accuracy;

[0023] 4. The coating roller of the present application uses a CCD detection camera to detect the coating quality, and the height of the CCD detection camera is adjusted by receiving a signal from the control unit through the lifting cylinder on the top, so that the detection range of the CCD detection camera can be adapted to the width of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a high-precision coating device;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0026] Explanation of the reference numerals: 1. unwinding roller; 2. winding machine; 3. roller structure; 31. roller body; 32. laser width gauge; 4. coating roller; 41. slider; 5. laser marking machine; 6. laser label reader; 7. control unit; 8. adjustment mechanism; 81. rack; 82. adjustment gear; 83. adjustment rod; 9. bracket; 10. CCD detection camera; 101. lifting cylinder; 11. tension mechanism; 111. pressure monitoring roller; 12. fine-tuning mechanism; 121. roller frame; 122. adjustment screw; 123. arch bracket; 124. motor. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-2 This application is described in further detail.

[0028] The embodiment of the present application discloses a high-precision coating device.

[0029] Reference Figure 1 and Figure 2 A high-precision coating device includes an unwinding roller 1, which transmits the substrate to a winder 2 through a transmission roller, and also includes a roller structure 3, which includes a plurality of roller bodies 31 near one end of the unwinding roller 1, and a laser width meter 32 for measuring the width of the substrate is correspondingly installed on the roller structure 3; a coating roller 4, which is located at one end near the winder 2, wherein a laser marker 5 and a laser mark reader 6 are installed in sequence between the roller structure 3 and the coating roller 4; a control unit 7, which is connected to the laser width meter 32, the laser marker 5, the laser mark reader 6 and the coating roller 4 by signal. The unwinding roller 1 unwinds the substrate. When the substrate passes through the roller structure 3, the width of the substrate is detected by the laser width meter 32. The detected data is transmitted to the control unit 7. The control unit 7 transmits the information to the laser marking machine 5 for positioning marking of coating. The laser marking reader 6 reads the mark of the laser marking machine 5 and transmits the read data to the control unit 7. The control unit 7 controls the coating roller 4 to coat according to the marking data. After the coating process is completed, it can be rolled up after the subsequent drying step.

[0030] Reference Figure 1 , the two ends of the coating roller 4 are rotatably mounted on the slider 41, and the slider 41 is slidably mounted on the bracket 9, wherein the bracket 9 is located on both sides of the whole and is represented by a transparent frame in the figure, and an adjustment mechanism 8 for adjusting the height of the slider 41 is installed on the bracket 9, and a scale line for indicating the height of the slider 41 is also provided on the bracket 9. The adjustment mechanism 8 includes a rack 81 on the side of the slider 41 and an adjustment gear 82 that drives the rack 81, wherein the adjustment gear 82 is sleeved on the adjustment rod 83, and the adjustment rod 83 is horizontally distributed with the coating roller 4. The coating roller 4 is adjusted according to the coating thickness required by the substrate. The operator drives the adjustment gear 82 to rotate by rotating the adjustment rod 83, and the adjustment gear 82 is meshed with the rack 81 on the side of the slider 41 for transmission, thereby adjusting the height of the entire coating roller 4, and the coating roller 4 is driven by an external driving mechanism.

[0031] Reference Figure 1 A CCD detection camera 10 is also provided between the coating roller 4 and the winder 2, and a lifting cylinder 101 for controlling the lifting of the CCD detection camera 10 is installed on the top of the CCD detection camera 10, and both the CCD detection camera 10 and the lifting cylinder 101 are connected to the control unit 7 by signal. The coated substrate is detected by the CCD detection camera 10, and the lifting cylinder 101 on the top of the CCD detection camera 10 receives a signal from the control unit 7 to adjust the height of the CCD detection camera 10, so that the detection range of the CCD detection camera 10 can be adapted to the width of the substrate.

[0032] Reference Figure 1 The roller bodies 31 in the roller structure 3 are symmetrically distributed on the upper and lower surfaces of the substrate, and the laser width meter 32 is arranged between the two groups of roller bodies 31. The roller bodies 31 in the roller mechanism clamp and transmit the substrate from the upper and lower surfaces of the substrate, and the laser width meter 32 can accurately measure the width of the substrate.

[0033] Reference Figure 1 and Figure 2 A tension mechanism 11 is also installed between the roller bodies 31, including a pressure monitoring roller 111 and a fine adjustment mechanism 12 for adjusting the pressure monitoring roller 111, wherein the fine adjustment mechanism 12 is located on the side of the pressure monitoring roller 111 away from the substrate. The fine adjustment mechanism 12 includes a roller frame 121 for mounting the pressure monitoring roller 111 and an adjusting screw 122 on the roller frame 121, wherein the adjusting screw 122 cooperates with an arched bracket 123 on the roller frame 121 for transmission, and a thread sleeve adapted to the adjusting screw 122 is installed on the arched bracket 123, and the adjusting screw 122 is driven by a motor 124. The two ends of the roller frame 121 are slidably mounted on the brackets 9 on both sides. The tension mechanism 11 installed between the roller bodies 31 can monitor the tension of the substrate in real time through the pressure monitoring roller 111, and when the substrate mechanism changes, it is driven by the motor 124 in the fine-tuning mechanism 12 to control the lifting and lowering of the roller frame 121 on which the pressure monitoring roller 111 is installed, thereby adjusting the pressure between the pressure monitoring roller 111 and the substrate, so that the substrate tensioning works normally.

[0034] Working principle: The laser width meter 32 is installed in the area of ​​the roller structure 3 at the unwinding end, and the substrate width is detected in real time under the precise adjustment of the tension mechanism 11 on the substrate roller, and the data is recorded and given to the control unit 7; the control unit 7 issues control instructions based on the real-time width measurement data and the size requirements of the blank process setting, and the laser marking machine 5 performs positioning marking according to the issued instructions; the laser marking reader 6 reads the data of the mark of the previous marking machine in real time, and then transmits the read data to the control unit 7; the control unit 7 processes and issues the control instructions to the coating roller 4 control mechanism according to the marking data; the coating roller 4 control mechanism adjusts and controls the coating roller 4 according to the instructions issued by the control unit 7, so that the coating roller 4 performs coating operation along the marking position, realizes fixed-point coating, and after the coating is completed, the coating quality is detected in real time by the CCD camera.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision coating device, comprising an unwinding roller (1), wherein the unwinding roller (1) transmits a substrate to a winding machine (2) via a transmission roller, characterized in that: Also includes A roller structure (3), the roller structure (3) comprising a plurality of roller bodies (31) close to one end of the unwinding roller (1), and a laser width meter (32) for measuring the width of the substrate is correspondingly mounted on the roller structure (3); A coating roller (4), the coating roller (4) being located at one end close to the winder (2), wherein a laser marking machine (5) and a laser marking reader (6) are sequentially installed between the roller structure (3) and the coating roller (4); A control unit (7) is connected to the laser width meter (32), the laser marking machine (5), the laser marking reader (6) and the coating roller (4) by signals.

2. A high-precision coating device according to claim 1, characterized in that: The two ends of the coating roller (4) are rotatably mounted on a slider (41), the slider (41) is slidably mounted on a bracket (9), and an adjustment mechanism (8) for adjusting the height of the slider (41) is mounted on the bracket (9), and a scale line for indicating the height of the slider (41) is also provided on the bracket (9).

3. A high-precision coating device according to claim 2, characterized in that: The adjusting mechanism (8) comprises a rack (81) on the side of the slider (41) and an adjusting gear (82) which is driven by the rack (81), wherein the adjusting gear (82) is sleeved on an adjusting rod (83), and the adjusting rod (83) is horizontally distributed with the coating roller (4).

4. A high-precision coating device according to claim 1, characterized in that: A CCD detection camera (10) is also provided between the coating roller (4) and the winder (2), and a lifting cylinder (101) for controlling the lifting of the CCD detection camera (10) is installed on the top of the CCD detection camera (10), and both the CCD detection camera (10) and the lifting cylinder (101) are connected to the control unit (7) by signal.

5. A high-precision coating device according to claim 1, characterized in that: The roller bodies (31) in the roller structure (3) are symmetrically distributed on the upper and lower surfaces of the substrate, and the laser width meter (32) is arranged between the two groups of roller bodies (31).

6. A high-precision coating device according to claim 5, characterized in that: A tension mechanism (11) is also installed between the roller bodies (31), comprising a pressure monitoring roller (111) and a fine-tuning mechanism (12) for adjusting the pressure monitoring roller (111), wherein the fine-tuning mechanism (12) is located on a side of the pressure monitoring roller (111) away from the substrate.

7. A high-precision coating device according to claim 6, characterized in that: The fine adjustment mechanism (12) comprises a roller frame (121) for mounting a pressure monitoring roller (111) and an adjusting screw (122) on the roller frame (121), wherein the adjusting screw (122) cooperates with an arched bracket (123) on the roller frame (121) for transmission, a thread sleeve adapted to the adjusting screw (122) is mounted on the arched bracket (123), and the adjusting screw (122) is driven by a motor (124).

8. A high-precision coating device according to claim 7, characterized in that: The two ends of the roller frame (121) are slidably mounted on the brackets (9) on both sides.

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