Intelligent hot melt adhesive film coating and rolling compound system driven by machine vision

Abstract

The utility model relates to an intelligent hot melt adhesive film coating and rolling compound system driven by machine vision, which comprises a workbench for fixing a product, a machine vision system for automatically generating a motion trail code according to the characteristics of the surface of a to-be-coated area of the product, and a screw type extrusion coating device for accurately coating the surface of the product according to the motion trail, the rolling device is used for uniformly rolling the coated hot melt adhesive film, the cutting and trimming device is used for cutting and trimming flashes of the hot melt adhesive film, and the controller is used for controlling the screw type extruding and coating device, the rolling device and the cutting and trimming device to sequentially work according to a motion trail code. The high-polymer hot melt adhesive film coating machine has the advantages of high-precision automatic coating, stable and reliable adhesive film coating quality, convenient system maintenance and the like, and belongs to the field of high-polymer hot melt adhesive film coating machinery.

Description

Technical Field

[0001] This utility model relates to the field of polymer hot melt adhesive film coating machinery, specifically to a machine vision-driven intelligent hot melt adhesive film coating and roll forming composite system. Background Technology

[0002] With the increasing demands for production efficiency and product quality in modern industry, various bonding technologies have been widely used in manufacturing. Among them, hot melt adhesive film, as an important bonding material, has gradually replaced traditional bonding methods due to its unique advantages, becoming a commonly used bonding material in industries such as electronics, automobiles, packaging materials, footwear, and apparel.

[0003] Hot melt adhesive film is an adhesive film that can melt at high temperatures and solidify after cooling, and has excellent bonding performance. Compared with traditional adhesive materials, such as liquid glue and solvent-based glue, the advantages of hot melt adhesive film are mainly reflected in the following aspects: (1) Fast curing: Hot melt adhesive film has a very fast curing speed, usually only a few seconds or minutes to complete the bonding. In contrast, liquid glue takes longer to fully cure, which greatly improves production efficiency; (2) Solvent-free: Compared with traditional solvent-based glue, hot melt adhesive film does not require solvents during use, avoiding the pollution caused by solvent evaporation to the environment and reducing the release of harmful gases, which has a smaller impact on workers' health; (3) High temperature resistance and water resistance: Hot melt adhesive film has good high temperature resistance and water resistance, and can maintain stable bonding performance in high temperature and humid environments, which makes its application in fields such as automobile manufacturing, packaging and electronic products widely recognized; (4) Excellent surface adaptability: Hot melt adhesive film can achieve good adhesion on the surface of various materials, especially the bonding performance of materials such as plastics, metals and cardboard. Therefore, hot melt adhesive film has become an ideal alternative to traditional adhesives in industries such as packaging, medical, electronics, footwear, and apparel.

[0004] Despite the significant advantages of hot melt adhesive films in many fields, traditional hot melt adhesive film coating methods still have some shortcomings in practical applications, particularly in coating precision, uniformity, and automation control, limiting their application in high-precision production. For example, traditional hot melt adhesive film coating methods typically rely on manual operation or simple mechanized equipment. Manual coating suffers from uneven coating area and inconsistent adhesive layer thickness, and its low efficiency can easily lead to extended production cycles. Furthermore, manual coating is affected by environmental factors and operator experience, resulting in poor consistency in the final product quality. With traditional coating equipment, due to differences in adhesive film viscosity and flowability, it is often difficult to achieve uniform coating, causing fluctuations in film thickness. These fluctuations not only affect bond strength but may also lead to uneven product appearance, thus impacting market competitiveness. In addition, traditional coating equipment often lacks a precise control system, unable to dynamically adjust the coating path and film thickness according to the specific shape and size of the product. This results in significant raw material waste and high environmental requirements, limiting its application in some demanding industries (such as high-end electronics and medical devices). Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide an intelligent hot melt adhesive film coating and roll forming system driven by machine vision that is intelligent, high-precision and highly automated.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A machine vision-driven intelligent hot melt adhesive film coating and roll lamination system includes:

[0008] - A workbench for fixing products

[0009] - A machine vision system that automatically generates motion trajectory codes based on the characteristics of the surface of the area to be coated on the product.

[0010] - A screw-type extrusion coating device that precisely coats the product surface according to the motion trajectory.

[0011] - A rolling device for uniformly rolling coated hot melt adhesive film.

[0012] - A cutting and trimming device for cutting and trimming the burrs of hot melt adhesive film.

[0013] - A controller that controls the screw extrusion coating device, roller pressing device, and cutting and trimming device to work sequentially based on motion trajectory codes.

[0014] As an alternative, the worktable is equipped with vacuum suction cups for fixing the product.

[0015] As a preferred option, the vacuum suction cup is cubic in shape, with multiple suction cup holes on the upper surface.

[0016] As a preferred embodiment, the screw-type extrusion coating device, the roller pressing device, and the cutting and trimming device are all mounted on a multi-degree-of-freedom gantry or robotic arm, thereby moving above the vacuum suction cup via the gantry or robotic arm.

[0017] As a preferred embodiment, the screw extrusion coating device and the roller pressing device are mounted on one gantry or robotic arm, and the cutting and trimming device is mounted on another gantry or robotic arm.

[0018] As a preferred embodiment, the machine vision system includes an image acquisition module, an image processing module, and a communication and interface module connected in sequence, with the communication and interface module connected to the controller.

[0019] As a preferred embodiment, the roller pressing device includes at least one roller and a pressure regulating component for real-time dynamic adjustment of the roller pressing pressure; the pressure regulating component includes a pressure sensor for real-time measurement of the roller pressing pressure.

[0020] As a preferred embodiment, the cutting and trimming device includes an automatic cutting tool and a posture adjustment component; the posture adjustment component adjusts the cutting angle and depth of the automatic cutting tool.

[0021] As a preferred option, the automatic cutting tool is a laser.

[0022] As a preferred option, the machine vision-driven intelligent hot melt adhesive film coating and roll lamination system also includes a cloud data processing module connected to the controller.

[0023] The workflow for coating a product surface with a hot melt adhesive film according to this invention is as follows:

[0024] First, the product is secured using vacuum suction cups mounted on the worktable. Then, the machine vision system scans the product surface via an image acquisition module, acquiring real-time image data of the area to be coated. The image processing module analyzes the acquired images, identifying surface features and the area to be coated, and automatically generates a coating trajectory code. The controller receives the trajectory code from the machine vision system and precisely controls the screw-type extrusion coating device to accurately coat the hot melt adhesive film onto the designated area of ​​the product surface along a predetermined trajectory. Simultaneously, a roller pressing device follows, uniformly pressing the coated hot melt adhesive film to ensure a tight bond between the film and the product surface. Finally, once the adhesive film coating is complete, a cutting and trimming device automatically activates to precisely remove any excess adhesive film, ensuring a neat and aesthetically pleasing product appearance.

[0025] Throughout the coating process, the image processing module also monitors the coating surface quality in real time, automatically identifying areas with uneven or missing coating. If a defective area is detected, the controller will automatically adjust the coating path or initiate a compensation operation. In addition, the controller enables remote monitoring, parameter adjustment, and fault diagnosis of the system through a cloud-based data processing module.

[0026] The present invention has the following advantages over the prior art:

[0027] (1) High-precision automated coating. The system automatically generates precise coating trajectories through a machine vision system and drives a screw-type extrusion coating device. The system can achieve precise film coating on products of different shapes and sizes, which significantly improves the accuracy and consistency of coating and avoids the problem of uneven coating that is difficult to control with manual coating and traditional equipment.

[0028] (2) Stable and reliable coating quality. The system monitors the coating quality in real time through an integrated image processing module and can automatically identify areas of uneven or missing coating, providing timely feedback to the controller for adjustment or compensation. This intelligent quality control greatly improves the stability of the coating process and reduces quality problems caused by human error or equipment fluctuations.

[0029] (3) The adhesive film is aesthetically pleasing and has a uniform thickness. The roller pressing device can precisely adjust the roller pressing pressure according to the preset trajectory to ensure that the hot melt adhesive film is tightly bonded to the product surface and that the film thickness is uniform. In addition, the cutting and trimming device automatically starts after coating to precisely trim the flash, ensuring that the product has a neat shape and smooth edges.

[0030] (4) Convenient system maintenance. Through the cloud data processing module, the system can perform remote monitoring, parameter adjustment and fault diagnosis, which effectively improves the intelligent management level and maintenance convenience of the system.

[0031] (5) Vacuum suction cups are used to flexibly fix products of different sizes and shapes, thereby improving the versatility and adaptability of the system.

[0032] (6) The use of a laser can provide high-precision cutting during the trimming process, thereby ensuring the accurate trimming of burrs.

[0033] (7) The roller pressing device adopts a pressure regulating component to achieve precise control of the roller pressing pressure during the coating process, thereby ensuring the best bonding effect between the adhesive film and the product surface. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the machine vision-driven intelligent hot melt adhesive film coating and roll forming composite system of this utility model.

[0035] Figure 2This is a schematic diagram of the control section of the machine vision-driven intelligent hot melt adhesive film coating and roll forming system of this utility model.

[0036] The symbols in the above figures are explained as follows:

[0037] 1—Machine vision system; 1-1—Image acquisition module; 1-2—Image processing module; 1-3—Communication and interface module; 2—Screw extrusion coating device; 3—Roller pressing device; 3-1—Roller; 3-2—Pressure sensor; 4—Cutting and trimming device; 4-1—Laser; 5—Controller; 6—Workbench; 7—First robotic arm; 8—Second robotic arm; 9—Vacuum suction cup; 10—Product; 11—Cloud data processing module. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0039] like Figure 1 and Figure 2 As shown, a machine vision-driven intelligent hot melt adhesive film coating and roll forming system includes a machine vision system 1, a screw-type extrusion coating device 2, a roll forming device 3, a cutting and trimming device 4, a controller 5, and a worktable 6. The screw-type extrusion coating device 2, the roll forming device 3, and the cutting and trimming device 4 are located above the worktable 6. Furthermore, the screw-type extrusion coating device 2 and the roll forming device 3 are mounted on a first robotic arm 7, while the cutting and trimming device 4 is mounted on a second robotic arm 8. In addition, a vacuum suction cup 9 is provided on the worktable 6, and the product 10 is adsorbed and fixed onto the worktable 6 by the vacuum suction cup 9.

[0040] Specifically, the machine vision system 1 includes an image acquisition module 1-1, an image processing module 1-2, and a communication and interface module 1-3 connected in sequence. The communication and interface module 1-3 is connected to the controller 5. The image acquisition module 1-1 scans the surface of the product 10 to acquire real-time image data of the coating area. The image processing module 1-2 includes an image analysis algorithm that analyzes the acquired images, identifies the surface features of the area to be coated on the product 10, checks the coating quality, and automatically generates or adjusts and optimizes the coating trajectory code. The communication and interface module 1-3 communicates and transmits data with the controller 5. The controller 5 receives the trajectory code provided by the machine vision system 1, coordinates and controls the working status of the screw extrusion coating device 2, the roller pressing device 3, and the cutting and trimming device 4, and drives them to move along a predetermined trajectory.

[0041] The roller pressing device 3 includes a roller 3-1 and a pressure regulating component that can dynamically adjust the roller pressing pressure in real time. The pressure regulating component includes a pressure sensor 3-2 that measures the roller pressing pressure in real time to accurately control the roller pressing pressure during the coating process and ensure the best bonding effect between the adhesive film and the product surface.

[0042] The cutting and trimming device 4 includes an automatic cutting tool and an attitude adjustment component; the attitude adjustment component adjusts the cutting angle and depth of the automatic cutting tool. The automatic cutting tool is a laser 4-1, which can provide high-precision cutting during the trimming process, thereby ensuring the accurate trimming of the film flash and making the film on the product edge neat.

[0043] Guided by a machine vision system, the screw-type extrusion coating device precisely coats the surface of the product within a designated area fixed on the worktable according to an automatically generated motion trajectory. The roller pressing device then closely follows the trajectory to uniformly roll the hot melt adhesive film, ensuring a tight bond between the film and the product surface. After coating, the cutting and trimming device automatically cuts and trims the flash of the adhesive film, ensuring a neat and aesthetically pleasing product appearance. The controller coordinates the working sequence of each component and intelligently adjusts the parameters during coating, rolling, and trimming processes to ensure efficient and stable system operation.

[0044] The working principle of this utility model is briefly described as follows:

[0045] First, the product 10 is fixed in place by a vacuum suction cup 9 mounted on the worktable 6. Then, the machine vision system 1 scans the surface of the product 10 using the image acquisition module 1-1 to acquire real-time image data of the area to be coated. The image processing module 1-2 analyzes the acquired images, identifies the surface features of the area to be coated on the product 10, and automatically generates a coating trajectory code. The controller 5 receives the trajectory code provided by the machine vision system 1 and precisely controls the first robotic arm 7 to drive the screw-type extrusion coating device 2 to accurately coat the hot melt adhesive film onto the designated area of ​​the product 10 surface along a predetermined trajectory. Simultaneously, the roller pressing device 3 mounted on the first robotic arm 7 follows closely behind, uniformly rolling the coated hot melt adhesive film to ensure a tight bond between the film and the surface of the product 10. The roller pressing pressure is detected in real time by a pressure sensor, and the roller pressing pressure is controlled in real time by a pressure regulating component. Finally, after the adhesive film coating on the surface of the product 10 is completed, the cutting and trimming device 4 is activated, and the laser 4-1, driven by the second robotic arm 8, precisely removes the flash from the adhesive film to ensure a neat and aesthetically pleasing product appearance. The attitude of the laser 4-1 can be further adjusted by the attitude adjustment component to adjust the cutting angle and depth of the automatic cutting tool.

[0046] Throughout the coating process, image processing modules 1-2 also monitor the surface coating quality of product 10 in real time, automatically identifying areas with uneven or missing coating. If a defective area is detected, controller 5 will automatically adjust the coating path or initiate a compensation operation; in addition, controller 5 achieves remote monitoring, parameter adjustment, and fault diagnosis of the system through cloud data processing module 11.

[0047] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A machine vision-driven intelligent hot melt adhesive film coating and roll lamination system, characterized in that, include: - A workbench for fixing products - A machine vision system that automatically generates motion trajectory codes based on the characteristics of the surface of the area to be coated on the product. - A screw-type extrusion coating device that precisely coats the product surface according to the motion trajectory. - A rolling device for uniformly rolling coated hot melt adhesive film. - A cutting and trimming device for cutting and trimming the burrs of hot melt adhesive film. - A controller that controls the screw extrusion coating device, roller pressing device, and cutting and trimming device to work sequentially based on motion trajectory codes.

2. The machine vision-driven intelligent hot melt adhesive film coating and roll forming system according to claim 1, characterized in that: The worktable is equipped with vacuum suction cups for fixing products.

3. The machine vision-driven intelligent hot melt adhesive film coating and roll forming system according to claim 2, characterized in that: The vacuum suction cup is cubic in shape, with multiple suction cup holes on the upper surface.

4. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 2, characterized in that: The screw-type extrusion coating device, roller pressing device, and cutting and trimming device are all mounted on a multi-degree-of-freedom gantry or robotic arm, thereby moving above the vacuum suction cup via the gantry or robotic arm.

5. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 4, characterized in that: The screw extrusion coating unit and the roller pressing unit are mounted on one gantry or robotic arm, and the cutting and trimming unit is mounted on another gantry or robotic arm.

6. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 1, characterized in that: The machine vision system includes an image acquisition module, an image processing module, and a communication and interface module connected in sequence. The communication and interface module is connected to the controller.

7. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 1, characterized in that: The roller pressing device includes at least one roller and a pressure regulating component that dynamically adjusts the roller pressing pressure in real time; the pressure regulating component includes a pressure sensor that measures the roller pressing pressure in real time.

8. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 1, characterized in that: The cutting and trimming device includes an automatic cutting tool and a posture adjustment component; the posture adjustment component adjusts the cutting angle and depth of the automatic cutting tool.

9. The machine vision-driven intelligent hot melt adhesive film coating and roll lamination system according to claim 8, characterized in that: The automatic cutting tool is a laser.

10. The machine vision-driven intelligent hot melt adhesive film coating and roll forming system according to claim 1. Its features are: It also includes a cloud data processing module that connects to the controller.

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