A kind of coating roll height automatic adjusting device

Abstract

The utility model discloses a kind of automatic adjusting device of coating roller height, including including by conveyer box rack transmission device, and by roller shaft, roller body (roll sleeve), bearing system, drive connecting piece and cooling / heating system composition coating roller body, for the coating processing of glass, further include: the drive connecting piece of the one side of the coating roller body is equipped with the ball screw by screw rod, nut, ball and ball circulation system composition, coating roller body can be driven to lift, the drive connecting piece of the other side of the coating roller body is equipped with limit rod, the top of the mounting bracket is equipped with driving structure corresponding ball screw, the operation of driving ball screw.The utility model provides a kind of automatic adjusting device of coating roller height, with "servo drive+closed loop control+dynamic compensation algorithm" as core, break through the efficiency, precision, adaptability problem of coating roller height adjustment.

Description

Technical Field

[0001] This utility model relates to the field of glass processing technology, specifically to an automatic height adjustment device for coating rollers. Background Technology

[0002] In existing coating production lines, the height of the coating rollers needs to be adjusted manually, which is cumbersome and lacks precision, resulting in unstable coating thickness. For example, the adjustment of the coating roller height has the following technical defects:

[0003] Manual operation is inefficient: The height of the coating roller needs to be adjusted manually using a screw adjustment device (such as a worm gear mechanism) after the machine is stopped. Each adjustment takes 5-10 minutes, which leads to the interruption of production line continuity (overall efficiency loss of about 20%). Manual adjustment causes production line shutdown, resulting in a loss of about 300 pieces of production capacity per hour (based on a standard production line).

[0004] Insufficient adjustment precision: Manual adjustment relies on experience, and the height deviation can reach ±0.3mm, resulting in uneven coating thickness (deviation >8%), which affects the optical performance of the product (such as infrared blocking rate fluctuation of ±10%).

[0005] Poor equipment adaptability: Different thicknesses of glass (such as 2mm, 5mm, 10mm) require repeated adjustments. Traditional mechanical locking structures cannot respond quickly, and changeover time is as long as 30 minutes. It is impossible to achieve real-time dynamic adaptation of the coating roller height. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic height adjustment device for coating rollers, aiming to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An automatic height adjustment device for a coating roller includes a conveying device consisting of a conveyor belt and a frame, and a coating roller body consisting of a roller shaft, a roller body (roller sleeve), a bearing system, a drive connector, and a cooling / heating system, for coating processing of glass, and further includes:

[0009] One side of the coating roller body has a drive connector equipped with a ball screw consisting of a screw, nut, balls, and a ball circulation system, which can drive the coating roller body to move up and down. The other side of the coating roller body has a drive connector equipped with a limit rod. The top of the mounting frame is equipped with a drive structure corresponding to the ball screw, which drives the operation of the ball screw. One side of the mounting frame is equipped with an adjustment system consisting of a control module and a feedback module, which controls the operation of the drive structure and error correction.

[0010] Preferably, the output shaft of the drive structure is connected to the lead screw of the ball screw, one end of the ball screw is rotatably connected to the mounting frame, and the other end is rotatably connected to the machine frame. The lead of the ball screw is 5mm, matching the lifting stroke of the coating roller body of 0-50mm.

[0011] Preferably, the drive connectors on both sides of the coating roller body are fixed with connecting ears, and the connecting ears at the corresponding ball screw are rigidly connected to the nut of the ball screw through a flange, and the connection surface of the flange and the nut is nickel plated.

[0012] A sliding sleeve is fixed inside the connecting lug corresponding to the limiting rod, and the limiting rod passes through the inside of the sliding sleeve.

[0013] Preferably, the control module includes a core controller and a signal sensor. The signal sensor is connected to the core controller. After detecting the glass thickness, the signal sensor transmits the detection data to the core controller. The core controller calculates the target height of the coating roller body based on the thickness signal H and the preset coating gap G. The calculation formula is: Z = H + G + ΔC

[0014] ΔC is the compensation value, and the calculated data signal is output to the drive structure.

[0015] Preferably, the feedback module monitors the signal data of the control module and can provide real-time feedback on the position of the coating roller body for closed-loop control.

[0016] Preferably, the control module further includes multiple thickness preset modes, which can store parameters corresponding to different glass thicknesses, and an adaptive learning algorithm that optimizes the compensation value ΔC using historical data.

[0017] Preferably, the drive structure adopts a dual servo synchronous drive design, which can further eliminate the tilting error of the coating roller body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model provides an automatic height adjustment device for coating rollers, which, with "servo drive + closed-loop control + dynamic compensation algorithm" as its core, overcomes the challenges of efficiency, accuracy, and adaptability in coating roller height adjustment.

[0020] Efficiency dimension: Fully automated adjustment replaces manual labor, ensuring continuous operation of the production line;

[0021] Precision dimension: Through the Z=H+G+ΔC algorithm and a ±0.005mm level feedback module, precise control of the coating gap is achieved;

[0022] Intelligent dimension: Multiple thickness presets and adaptive learning algorithms give the device the ability to optimize autonomously.

[0023] Ultimately, this will achieve a synergistic leap in coating quality, production efficiency, and equipment lifespan, providing key technological support for high-end glass manufacturing (such as optical coating and photovoltaic glass). Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the mounting bracket of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the drive structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the overall structure of the limiting rod of this utility model.

[0028] In the diagram: 10, conveying device; 20, coating roller body; 21, connecting ear; 22, sliding sleeve; 30, mounting bracket; 40, ball screw; 50, limit rod; 60, drive structure; 70, adjustment system. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 and Figure 2 The embodiments proposed in this application include: an automatic height adjustment device for a coating roller, comprising a conveying device 10 and a coating roller body 20. The conveying device 10 is a frame equipped with a conveyor belt, which can be directly used as existing equipment. The glass to be coated is conveyed by the conveyor belt. The coating roller body 20 is an existing device consisting of a roller shaft, a roller body (roller sleeve), a bearing system, a drive connector and a cooling / heating system. The conveying device 10 is used for glass processing.

[0031] One side of the coating roller body 20 is equipped with a drive connector and a ball screw 40. The ball screw 40 can be an existing type and consists of a screw, nut, balls and a ball circulation system. The other side of the coating roller body 20 is equipped with a limit rod 50. The limit rod 50 limits the overall position of the coating roller body 20 to ensure that the ball screw 40 can drive the coating roller body 20 to adjust its height. A mounting frame 30 is installed at the upper end of the frame. A drive structure 60 is installed on the top of the mounting frame 30 corresponding to the ball screw 40 to drive the operation of the ball screw 40. An adjustment system 70 is installed on one side of the mounting frame 30. The adjustment system 70 includes a control module and a feedback module. The control module is connected to the drive structure 60 to drive the opening and closing of the drive structure 60. The feedback module is connected to the control module to provide feedback on the position of the coating roller.

[0032] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, one end of the ball screw 40 is rotatably connected to the mounting bracket 30, and the other end is rotatably connected to the frame. The drive structure 60 is a servo motor that matches the ball screw 40. A Panasonic MHMF series motor can be used, with a thrust of 3000N and a repeatability of ±0.01mm. The output shaft of the drive structure 60 is connected to the lead screw of the ball screw 40. Existing technology can be used for the connection. The lead of the ball screw 40 is 5mm, matching the lifting stroke of the coating roller body 20 (0-50mm). The coating roller body 20 has two sides... All drive connectors are externally fixed with connecting ears 21. The connecting ears 21 corresponding to the ball screw 40 are rigidly connected to the nut of the ball screw 40 through a flange. The flange is made of 7075 aluminum alloy (tensile strength ≥500MPa). The connecting surface is nickel-plated for corrosion protection. A sliding sleeve 22 is fixed inside the connecting ear 21 corresponding to the limit rod 50. The limit rod 50 passes through the inside of the sliding sleeve 22, but is not fixed to the sliding sleeve 22. It plays a role in limiting the lifting and lowering of the coating roller body 20, ensuring the stable lifting and lowering of the coating roller body 20.

[0033] The control module includes a core controller and signal sensors. The signal sensors are connected to the core controller, which is an existing PLC controller, such as a Siemens S7-1500 or an embedded microcontroller (STM32H743) with a built-in PID control algorithm. The signal sensors can be laser thickness gauges or displacement sensors to detect the thickness of the glass to be coated. The signal sensors transmit the detected data to the core controller. The control logic of the core controller is to calculate the target height Z of the coating roller body 20 according to the thickness signal H and the preset coating gap G, using the following formula: Z = H + G + ΔC, where ΔC is the compensation value (including thermal expansion coefficient, mechanical clearance, etc., default 0.05mm). After calculation by the control logic of the core controller, the signal is output. The signal output process is that the control module sends a pulse command to the drive structure 60, which starts the ball screw 40 to operate, thereby driving the coating roller body 20 to move up and down as a whole.

[0034] The feedback module is an absolute encoder, and the absolute encoder can be Heidenhain ERN1387. By monitoring the signal data of the control module, the control module can provide real-time feedback to the feedback module on the position of the coating roller body 20. In this way, the feedback module can perform closed-loop control: compare the encoder signal with the target position of the coating roller body 20, and dynamically correct the error with an accuracy of ±0.005mm.

[0035] The glass is conveyed by the conveyor device 10. After the glass enters the production line, the control module transmits the glass thickness data to the core controller in real time through the signal sensor. The target height is calculated, and the control module calculates the target position of the coating roller according to the formula Z=H+G+ΔC. The drive structure 60 is then activated to drive the ball screw 40 to adjust the height of the coating roller body 20 and move the coating roller body 20 to the target height. The entire process takes less than 2 seconds. At this time, the feedback module performs feedback calibration, and the absolute encoder monitors the position deviation in real time. If the deviation is greater than ±0.02mm, the PID algorithm of the control module is triggered for dynamic compensation.

[0036] Through the above-mentioned technical means, the height of the coating roller body 20 is automatically adjusted, reducing changeover time by 70%; the adjustment accuracy reaches ±0.1mm, as shown in the table below:

[0037]

[0038] In another embodiment, the following technical solutions can be replaced or added depending on the specific production and processing environment:

[0039] The drive structure 60 can be replaced with a stepper motor + planetary reducer: cost is reduced by 40%, but accuracy is slightly lower by ±0.1mm, suitable for slow production lines, or a linear motor: no mechanical transmission chain, response speed is increased by 50%, suitable for ultra-high speed production lines;

[0040] The control module can be further improved with expanded functions, such as adding multi-thickness preset modes: storing parameters corresponding to different glass thicknesses (such as 2mm / 5mm / 10mm), switching with one click, and an adaptive learning algorithm: optimizing the compensation value ΔC through historical data to reduce manual intervention.

[0041] Further optimization of the drive structure 60, dual servo synchronous drive: both sides of the coating roller body 20 adopt the drive structure 60 to drive the ball screw 40, eliminating the original limit rod 50 setting, so as to eliminate the tilting error caused by the force on one side of the coating roller body 20, or adopt an air-bearing guide rail: the coating roller body 20 is supported by air bearings, which can reduce frictional resistance by 90% and improve the sensitivity of adjustment.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic height adjustment device for a coating roller, comprising a conveying device (10) consisting of a conveyor belt and a frame, and a coating roller body (20) consisting of a roller shaft, a roller body, a bearing system, a drive connector, and a cooling / heating system, for coating processing of glass, characterized in that, Also includes: The coating roller body (20) has a drive connector on one side with a ball screw (40) consisting of a screw, nut, ball, and ball circulation system, which can drive the coating roller body (20) to rise and fall. The other drive connector of the coating roller body (20) has a limit rod (50). The upper end of the frame is equipped with a mounting frame (30). The top of the mounting frame (30) is equipped with a drive structure (60) corresponding to the ball screw (40) to drive the operation of the ball screw (40). The mounting frame (30) is equipped with an adjustment system (70) consisting of a control module and a feedback module on one side to control the operation of the drive structure (60) and error correction.

2. The automatic height adjustment device for a coating roller according to claim 1, characterized in that, The output shaft of the drive structure (60) is connected to the lead screw of the ball screw (40). One end of the ball screw (40) is rotatably connected to the mounting frame (30), and the other end is rotatably connected to the frame. The lead of the ball screw (40) is 5mm, matching the lifting stroke of the coating roller body (20) from 0 to 50mm.

3. The automatic height adjustment device for a coating roller according to claim 2, characterized in that, The two sides of the coating roller body (20) are fixed with connecting ears (21). The connecting ears (21) corresponding to the ball screw (40) are rigidly connected to the nut of the ball screw (40) through the flange. The connection surface of the flange and the nut is plated with nickel. A sliding sleeve (22) is fixed inside the connecting ear (21) corresponding to the limiting rod (50), and the limiting rod (50) passes through the inside of the sliding sleeve (22).

4. The automatic height adjustment device for a coating roller according to claim 1, characterized in that, The control module includes a core controller and a signal sensor. The signal sensor is connected to the core controller. After detecting the glass thickness, the signal sensor transmits the detection data to the core controller. The core controller calculates the target height of the coating roller body (20) based on the thickness signal H and the preset coating gap G. The calculation formula is: Z = H + G + ΔC Where ΔC is the compensation value, the calculated data signal is output to the drive structure (60).

5. The automatic height adjustment device for a coating roller according to claim 1, characterized in that, The feedback module monitors the signal data of the control module and can provide real-time feedback on the position of the coating roller body (20) to perform closed-loop control.

6. The automatic height adjustment device for a coating roller according to claim 1, characterized in that, The control module also includes multiple thickness preset modes, which can store parameters corresponding to different glass thicknesses, as well as an adaptive learning algorithm that optimizes the compensation value ΔC using historical data.

7. The automatic height adjustment device for a coating roller according to any one of claims 1, 2, or 3, characterized in that, The drive structure (60) adopts a dual servo synchronous drive design, which can further eliminate the tilting error of the coating roller body (20).

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