Honeycomb core aramid paper automatic overlapping machine positioning method and system

Abstract

The invention discloses a positioning method and system for an automatic overlapping machine of honeycomb core aramid paper, the positioning system comprises a visual detection system, a visual position moving system, a position compensation mechanism and a control system, and the positioning system is characterized in that the visual detection system is arranged on the visual position moving system; the control system includes a recipe management system and can drive the visual position movement system and the position compensation mechanism. According to the method, image information of overlapped honeycomb core aramid paper is collected through the visual detection system, the image information of the overlapped honeycomb core aramid paper and a pre-stored reference pattern are compared through the control system, the position of the overlapped honeycomb core aramid paper is automatically adjusted, and high-precision overlapping is achieved. Position parameters are pre-stored in a formula management system of the control system, automatic position adjustment of the visual detection system is achieved when honeycomb core aramid paper of different specifications is replaced, the debugging time is saved, and the debugging material loss is reduced. Through the improvement, the production efficiency can be improved on a large scale, and the overlapping production of multi-specification and large-scale honeycomb core aramid paper is realized.

Description

Technical Field

[0001] This invention relates to the field of automatic stacking machines for honeycomb core aramid paper, specifically a positioning method and system for an automatic stacking machine for honeycomb core aramid paper. Background Technology

[0002] Traditional positioning methods for automatic laminating machines mainly include mechanical positioning and sensor positioning. The positioning accuracy of mechanical positioning relies heavily on machining precision and needs to be matched with the strip spacing; the positioning accuracy of sensor positioning is easily affected by installation location and equipment vibration or shaking, leading to signal instability or even signal loss. These positioning methods are only suitable for applications where lamination accuracy requirements are not high.

[0003] For applications requiring high precision, such as the lamination process of honeycomb aramid paper, where the regularity of the cell grid needs to be ensured, visual positioning methods are required. However, for honeycomb aramid paper of different specifications, visual positioning lamination requires acquiring and adjusting reference images and visual position parameters, which is time-consuming and requires repeated trial and error, resulting in poor adaptability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a positioning method and system for an automatic honeycomb core aramid paper stacking machine, which can effectively solve the problems of low accuracy and poor adaptability to different specifications of honeycomb core aramid paper in traditional positioning methods.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a positioning system for an automatic honeycomb core aramid paper stacking machine, comprising a vision detection system, a vision position movement system, a position compensation mechanism and a control system, characterized in that the vision detection system is set on the vision position movement system; the control system includes a formula management system and can drive the vision position movement system and the position compensation mechanism.

[0006] Preferably, the cameras of the visual inspection system are respectively positioned in the length and width directions of the stacked honeycomb aramid paper.

[0007] Preferably, the vision inspection system has two sets of cameras along the length of the stacked honeycomb aramid paper core, one set for detecting the positioning reference of the adhesive strip and the other set for detecting the deflection angle of the adhesive strip.

[0008] Preferably, the vision inspection system has two sets of cameras in the width direction of the stacked honeycomb aramid paper, one set for detecting the positioning reference of the pattern between the adhesive strips, and the other set for detecting the deflection angle of the pattern between the adhesive strips.

[0009] Preferably, the visual position movement system uses a servo motor module, which is mounted on a stacked frame and the mounting surface is precision machined.

[0010] Preferably, the visual position movement system includes lateral movement, longitudinal movement, and vertical lifting mechanisms.

[0011] Preferably, the visual position movement system includes a limit sensor and an origin sensor.

[0012] Preferably, the control system is equipped with an alarm system. When the positioning position or deflection angle of the adhesive strip or the pattern between the adhesive strips exceeds the range, an alarm will be triggered, and the product will be judged as unqualified and the stacking action will not be performed.

[0013] Preferably, the control system is equipped with manual and jog-driven modes for moving the visual position system.

[0014] Based on the above structure, the positioning method for automatic stacking of honeycomb core aramid paper includes the following steps: S1 pre-acquires the reference pattern information of the honeycomb core aramid paper to be stacked and stores the reference pattern information in the formula management system of the control system; During S2 superposition, the visual inspection system is used to acquire the image information of the superimposed target. After processing by the control system, the image information is compared with the reference pattern information and the deviation is calculated. When the S3 deviation value is within the allowable range, the control system drives the overlapping mechanism to directly overlap; when the deviation value exceeds the allowable range, the control system drives the position compensation mechanism to adjust the position of the overlapping target, and the vision detection system provides real-time feedback of the position signal until the deviation value is within the allowable range.

[0015] Preferably, in step S1, the position parameters of the vision system when stacking honeycomb core aramid paper of different specifications are stored in the formula management system of the control system; when stacking honeycomb core aramid paper of different specifications, the operator selects the corresponding formula number, and the control system automatically drives the vision position movement system to adjust the position of the vision detection system.

[0016] The beneficial effects of this invention are: by comparing the image information of the honeycomb aramid paper to be stacked with a pre-stored reference pattern, the position of the honeycomb aramid paper to be stacked is automatically adjusted, achieving high-precision stacking; by pre-storing position parameters in the formula management system, the position of the vision inspection system is automatically adjusted when changing honeycomb aramid paper of different specifications, saving debugging time and reducing debugging material consumption. Through the above improvements, production efficiency can be greatly improved, enabling the stacking production of honeycomb aramid paper of multiple specifications in large quantities. Attached Figure Description

[0017] Figure 1 This is a flowchart of the positioning method for the automatic stacking machine of honeycomb core aramid paper according to the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the positioning system for the automatic honeycomb core aramid paper stacking machine of the present invention.

[0019] Figure 3 This is the visual inspection system provided in the embodiments of the present invention.

[0020] Figure 4 This is the recipe management interface provided in this embodiment of the invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly.

[0022] like Figure 2 As shown, a positioning system for an automatic honeycomb core aramid paper stacking machine includes a vision detection system 4, a vision position movement system 1, a position compensation mechanism 2 (long-direction compensation mechanism 21, width-direction compensation mechanism 22), and a control system. The vision detection system 4 is mounted on the vision position movement system 1. The control system includes a formula management system and can drive the vision position movement system 1, the position compensation mechanism 2, and the stacking mechanism 3.

[0023] like Figure 3 As shown, the vision inspection system 4 uses an Omron complete vision system, including a camera controller 41, a camera 42, a lens 43, a light source 44, and camera cables 45. To ensure consistent environmental conditions in the vision inspection area, a strip light source 44 is used to cover the entire inspection area. The camera 42 is installed at a height of approximately 260mm from the target being inspected, and the light source 44 is installed at a height of approximately 60mm from the target being inspected. The field of view of the camera 42 is approximately 35mm*46mm.

[0024] Select defect-free standard-specification adhesive strips, ensure a stable on-site environment, and use a strip light source 44 to ensure uniform light coverage of the adhesive strip sampling area; adjust the position of camera 42 to ensure a clear and complete image, and then take and save the image. This image will serve as the reference pattern for the laminated honeycomb aramid paper core.

[0025] The visual inspection system 4 processes the reference image to accurately extract positioning feature data (the right-angle position of the edge of the adhesive strip or pattern, the deflection angle of the end face of the adhesive strip or pattern, etc., are used as key positioning features).

[0026] like Figure 4 As shown, the extracted positioning feature data and the position data of the vision inspection system 4 are both stored in the recipe management system, and the allowable range of position deviation is specified.

[0027] During the stacking process, the vision inspection system 4 extracts the features of the honeycomb core aramid paper being inspected through the camera 42, and then the control system compares it with the pre-stored reference image data and calculates the deviation. Then, based on the preset allowable deviation range, it confirms whether position compensation is needed, and determines whether to stack directly by combining the deviation value of the deflection angle, thus realizing the automatic recognition function.

[0028] Before comparison, the control system optimizes the image by removing noise and other impurities from the acquired image, improving image clarity, and correcting the image position to ensure that the comparison results are not affected by image quality.

[0029] During debugging, image sampling and calibration can be performed on defect-free adhesive strips of honeycomb core aramid paper of different specifications. The recognition area is determined by the edge of the adhesive strip. The entire pattern or the edge of the pattern within the recognition area can be identified. This can ignore the interference of irrelevant areas and improve the comparison efficiency and accuracy.

[0030] The servo motor module of the visual position movement system 1 uses a Siemens motor, and the movement positioning accuracy can reach ±0.01mm.

[0031] The above are merely preferred embodiments of the present invention. For those skilled in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A positioning system for an automatic honeycomb core aramid paper stacking machine, comprising a vision inspection system, a vision position movement system, a position compensation mechanism, and a control system, characterized in that, The visual detection system is mounted on the visual position movement system; the control system includes a formula management system and can drive the visual position movement system and the position compensation mechanism.

2. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 1, characterized in that, The cameras of the visual inspection system are respectively set in the length and width directions of the stacked honeycomb aramid paper.

3. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 2, characterized in that, The visual inspection system has two sets of cameras positioned along the length of the stacked honeycomb aramid paper core.

4. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 2, characterized in that, The visual inspection system has two sets of cameras set in the width direction of the stacked honeycomb aramid paper core.

5. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 1, characterized in that, The visual positioning and movement system uses a servo motor module, which is mounted on the stacking frame.

6. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 5, characterized in that, The visual position movement system includes lateral movement, longitudinal movement, and vertical lifting mechanisms.

7. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 5, characterized in that, The visual position movement system includes a limit sensor and an origin sensor.

8. The positioning system of the automatic honeycomb core aramid paper stacking machine according to claim 1, characterized in that, The control system is equipped with manual and jog-driven modes for moving the vision position.

9. The positioning method of the automatic stacking machine for honeycomb core aramid paper according to claims 1-8, characterized in that, Includes the following steps: S1 pre-acquires the reference pattern information of the honeycomb core aramid paper to be stacked and stores the reference pattern information in the formula management system of the control system; During S2 superposition, the visual inspection system is used to acquire the image information of the superimposed target. After processing by the control system, the image information is compared with the reference pattern information and the deviation is calculated. When the S3 deviation value is within the allowable range, the control system drives the overlapping mechanism to directly overlap; when the deviation value exceeds the allowable range, the control system drives the position compensation mechanism to adjust the position of the overlapping target, and the vision detection system provides real-time feedback of the position signal until the deviation value is within the allowable range.

10. The positioning method of the automatic honeycomb core aramid paper stacking machine according to claim 9, characterized in that, In step S1, the position parameters of the vision system when stacking honeycomb core aramid paper of different specifications are stored in the formula management system of the control system. When stacking honeycomb core aramid paper of different specifications, the operator selects the corresponding formula number, and the control system automatically drives the vision position movement system to adjust the position of the vision detection system.

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