Aluminum sheet heating, film pasting, bending and detecting integrated equipment and machining method

Abstract

The invention discloses aluminum sheet heating, film pasting, bending and detecting integrated equipment. Comprising an aluminum sheet feeding and discharging module, an aluminum sheet carrying mechanism, an automatic heating module, an automatic cutting and film pasting module, an automatic bending module, a high-voltage performance detection module, an AOI visual size detection module, an automatic code spraying module and an automatic discharging and NG removing module which are sequentially arranged along the aluminum sheet treatment technological process. The aluminum sheet carrying mechanism is used for conveying aluminum sheets between the jigs of the adjacent modules so as to achieve full-automatic continuous production. A plurality of originally dispersed procedures are integrated in one device, unmanned automatic production of the whole process from aluminum sheet feeding to qualified product sorting and discharging is achieved, and the material turnover time between manual intervention and the procedures is greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic production equipment, in particular to a full-automatic integrated device for heating, film pasting, bending, detecting and sorting of aluminum sheets. BACKGROUND

[0002] In some electronic or precision component manufacturing processes, PET protective film needs to be pasted on the surface of an aluminum sheet, and bending treatment is performed, and finally the finished product needs to be detected for electrical performance and size. Currently, this process is mainly completed by manual or semi-automatic equipment.

[0003] Manual operation is labor-intensive, low in production efficiency, and product consistency is difficult to guarantee, and is prone to problems such as film pasting bubbles, scratches, and irregular bending due to improper operation, resulting in a high rejection rate. Although the existing semi-automatic equipment can replace some manual work, each process (such as feeding, heating, film pasting, bending, detection, code spraying, and discharging) is often scattered and independent, and the connection between devices relies on manual transfer or simple mechanical transmission, resulting in low integration of the production line, large floor space, slow production rhythm, and difficulty in realizing quality data tracing and real-time monitoring throughout the process.

[0004] Therefore, it is urgent to develop a device that can integrate heating, film pasting, bending, detection, and sorting functions throughout the process, and realize efficient, stable, and automated continuous production. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the defects of high manual dependence, scattered processes, low production efficiency, and poor product consistency in the existing aluminum sheet film pasting and bending process, and to provide a heating, film pasting, and bending detection integrated device with high automation and a working method thereof.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: In a first aspect, the present application provides a heating, film pasting, and bending detection integrated device, comprising an aluminum sheet feeding and discharging module, an aluminum sheet handling mechanism, an automatic heating module, an automatic cutting and film pasting module, an automatic bending module, a high-voltage electrical performance detection module, an AOI visual size detection module, an automatic code spraying module, and an automatic discharging and NG rejection module, which are arranged in sequence along the aluminum sheet processing process. The aluminum sheet handling mechanism is used to convey the aluminum sheet between the jigs of adjacent modules to realize full-automatic continuous production.

[0007] The automatic heating module is used to heat the aluminum sheet to a specified temperature suitable for film pasting.

[0008] The automatic cutting and film pasting module is used to cut the PET film to a set length and accurately paste it on the surface of the heated aluminum sheet.

[0009] The automatic bending module is used for regular bending of the PET film edge on the aluminum sheet with the film.

[0010] The high-voltage electrical performance detection module is used for testing the electrical performance of the bent product, such as insulation, voltage resistance, or on-off resistance.

[0011] The AOI visual size detection module is used for optical detection of the appearance, film position, bending angle, and key size of the product.

[0012] The automatic code spraying module is used for spraying a unique traceability code (such as a serial number or batch number) on the surface of the qualified product.

[0013] The automatic unloading and NG rejection module is used for automatically moving the qualified product to the unloading area and separating and rejecting the unqualified product according to the detection result.

[0014] Preferably, the aluminum sheet conveying mechanism comprises: a clamping jaw for clamping the aluminum sheet; a jacking cylinder for driving vertical movement of the clamping jaw; a servo motion module connected with the clamping jaw and driving horizontal movement of the clamping jaw, wherein the servo motion module comprises a first servo motor, a ball screw driven by the first servo motor, and a first linear guide rail, the clamping jaw is installed on the first linear guide rail and connected with the ball screw, the first servo motor drives the ball screw to rotate, and then converts the linear motion of the ball screw nut, and the forward and reverse rotation of the first servo motor controls the forward and backward movement of the clamping jaw.

[0015] Preferably, the automatic heating module comprises a heating gun and a heating jig for carrying the aluminum sheet, and the heating gun is located on one side of the heating jig. The heating jig is a semi-closed chamber structure with an open upper end, and the heating jig is provided with a positioning and carrying position matched with the shape of the aluminum sheet product for carrying the aluminum sheet. After the aluminum sheet is conveyed and placed on the positioning and carrying position, the heating jig and the aluminum sheet form a relatively closed space to jointly constitute a heating chamber, so as to improve the heating efficiency and uniformity.

[0016] Preferably, the automatic cutting and film pasting module comprises a second servo motion module for pressing down the PET film and controlling the length of the pasted film, which is located on the film rack, and the second servo motion module comprises a second linear guide rail driven by a second servo motor. A cutting module for cutting the PET film, the PET cutting module comprises a mounting bracket on the second linear guide rail, a vertical linear guide rail driven by a motor is arranged on the side of the mounting bracket, a material placing shaft for placing the PET film roll, a guide roller, and a cutting knife driven by a cylinder are arranged on the vertical linear guide rail through a mounting plate. The pressing die mechanism for contacting and flattening the PET film on the surface of the aluminum sheet during the film pasting process is fixedly installed on the mounting plate by the support, and comprises a pressing head driven by the air cylinder for flattening the film on the surface of the aluminum sheet.

[0017] As preferred, the automatic bending module comprises a third servo motion module for pressing the fixed aluminum sheet, which is located on the bending rack; The film folding module is located below the third servo motion module and is driven by the third servo motion module; the film folding module comprises a roller and a driving cylinder for driving the roller to move to fold the PET film.

[0018] As preferred, the high-voltage electrical performance detection module comprises a driving rod driven by the air cylinder to move up and down, an electrical measurement jig carried by the support plate above the driving rod, and a pressing plate connected below the electrical measurement jig; when the air cylinder drives the driving rod to descend, the pressing plate is tightly pressed on the aluminum sheet entering the electrical measurement station.

[0019] As preferred, the AOI visual size detection module comprises an upper camera module for detecting the top size of the product and a lower camera module for detecting the bottom size of the product, the upper camera module and the lower camera module are fixed in position by the camera support, a detection jig driving mechanism for carrying the product and driving the product to move horizontally for shooting, the detection jig driving mechanism is located between the upper camera module and the lower camera module; the detection jig driving mechanism comprises a linear guide rail driven by a servo motor and a product carrying table located on the linear guide rail, the aluminum sheet is located above the product carrying table, the product carrying table slides along the linear guide rail, thereby driving the product to move, so as to facilitate the detection jig driving mechanism to shoot from multiple angles.

[0020] As preferred, the automatic code spraying module is arranged at the end of the movement path of the detection jig driving mechanism, for spraying traceability information on the visually detected qualified product.

[0021] As preferred, the automatic unloading and NG rejection module comprises an X-axis motion module, a Y-axis motion module, and a Z-axis motion air cylinder slidingly connected with the X-axis linear motion module, and a vacuum suction cup installed on the execution end of the Z-axis motion air cylinder, constituting a three-axis linkage taking and placing mechanism for automatically grabbing the product and sorting it to different areas according to the detection results.

[0022] In a second aspect, the present application provides a method for processing aluminum sheet by using the above-mentioned device, comprising the following sequentially executed steps: S1: heating step, moving the loaded aluminum sheet to the automatic heating module by the aluminum sheet conveying mechanism, and heating to the set temperature; S2: a film pasting step, the heated aluminum sheet is transferred to the automatic cutting and film pasting module, and automatic length delivery, pasting and cutting of the PET film are completed; S3: a bending step, the product after film pasting is transferred to the automatic bending module, and automatic bending is performed on the specific edge of the PET film; S4: an electrical performance detection step, the product after bending is transferred to the high-voltage electrical performance detection module, and electrical performance testing of preset items is performed; S5: a visual detection step, the product after electrical performance testing is transferred to the AOI visual size detection module, and automatic optical detection of appearance and size is performed; S6: a code spraying step, the product after visual detection is transferred to the automatic code spraying module, and traceability information is sprayed and printed; S7: a sorting and discharging step, the product state is judged through the automatic discharging and NG rejection module: if the product is qualified in S4 and S5, the product is transferred to a discharging area (such as a conveying belt); if the product is unqualified in any link of S4 or S5, the product is transferred to an NG recovery container.

[0023] The application has the following beneficial effects: the application seamlessly connects multiple processes originally scattered and dependent on manual operation through full-process integrated automatic layout and high-speed and high-precision conveying mechanisms, and the production cycle of a single product is shortened to about 8 seconds, the production capacity is improved by several times compared with the traditional mode, and the large-scale production demand is met; the sealed and uniform heating mode provides the best conditions for film pasting, servo-controlled film pasting and cutting ensure the flatness of the film material, and roller bending ensures the uniformity of the bending shape, thereby significantly reducing the probability of defects such as bubbles, scratches, wrinkles and bending defects; through online high-voltage electrical performance detection and up-down dual-station AOI visual size detection, double 100% online full-automatic inspection of the electrical performance and appearance size of the product is realized, the detection precision is high, and the result is objective; the automatic discharging and NG rejection module automatically sorts OK products and NG products to different areas according to the electrical testing and visual detection results, realizes accurate and efficient sorting at the production end, avoids confusion of qualified products and unqualified products, and ensures the qualified rate of the outgoing products. Through the optimized layout, the production cycle of a single product is shortened to about 8 seconds, the production capacity is improved by orders of magnitude compared with the manual or semi-automatic production line, the number of direct operating personnel is reduced, and the labor cost and management cost are reduced while the production capacity and quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic top view of the overall layout of the heating, film pasting and bending detection equipment described in the embodiments of the application. Figure 2 It is a structural schematic view of the aluminum sheet conveying mechanism in the embodiments of the application. Figure 3 It is a schematic view of a gripper in the aluminum sheet conveying mechanism. Figure 4 Structure diagram of automatic heating module in the embodiment of the present application; Figure 5 Structure diagram of automatic cutting and pasting film module in the embodiment of the present application; Figure 6 Structure diagram of automatic cutting and pasting film module in the embodiment of the present application; Figure 7 Structure diagram of automatic bending module in the embodiment of the present application; Figure 8 Structure diagram of automatic bending module in the embodiment of the present application; Figure 9 Structure diagram of automatic bending module in the embodiment of the present application; Figure 10 Structure diagram of high-voltage electrical performance detection module in the embodiment of the present application; Figure 11 Structure diagram of AOI visual size detection module in the embodiment of the present application; Figure 12 Arrangement diagram of automatic code spraying module in the embodiment of the present application; Figure 13 Structure diagram of automatic unloading and NG rejection module in the embodiment of the present application; Figure 14 Structure diagram of automatic unloading and NG rejection module in the embodiment of the present application; Figure 15 Structure diagram of automatic unloading and NG rejection module in the embodiment of the present application; Explanation of reference numerals in the drawing: 1, aluminum sheet conveying mechanism; 1-1, clamping jaw; 1-2, lifting cylinder; 1-3, first servo motion module; 1-3-1, first linear guide rail; 2, automatic heating module; 2-1, heating jig; 2-2, heating gun; 2-3, positioning carrier; 3, automatic cutting and pasting film module; 3-1, film pasting frame; 3-2, second servo motor; 3-3, first linear guide rail; 3-4, mounting bracket; 3-5, vertical linear guide rail; 3-6, mounting plate; 3-7, feeding shaft; 3-8, guide roller; 3-9, cutting knife; 3-10, connecting bracket; 3-11, pressing head; 3-12, first support top plate; 4, automatic bending module; 4-1, bending frame; 4-2, frame platform; 4-3, support plate; 4-4, third servo motor; 4-5, third linear guide rail; 4-6, first movable rod; 4-7, driving cylinder; 4-8, upper roller; 4-9, lower roller; 4-10, lower pressing plate; 4-11, second movable rod; 4-12, connecting seat; 5. High-voltage electrical performance testing module; 5-1. Drive rod; 5-2. Cylinder; 5-3. Support plate; 5-4. Pressure plate; 6. AOI visual size inspection module; 6-1. Upper camera module; 6-2. Lower camera module; 6-3. Camera support; 6-4. Fourth linear guide rail; 6-5. Product support platform; 7. Automatic inkjet printing module; 8. Automatic feeding and NG rejection module; 8-1. X-axis motion module; 8-2. Y-axis motion module; 8-3. Z-axis motion cylinder; 8-4. Connecting plate; 8-5. Vacuum suction cup; 9. Rack; 10. Electrical control cabinet; 11. Aluminum sheet; 12. NG material box; 13. Belt conveyor line; 14. PET film rolls; 15. Electrical measuring fixture. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0026] Example: like Figure 1 As shown, this embodiment provides an integrated heating film bending inspection device, including an aluminum sheet feeding module (not shown in the figure), an aluminum sheet handling mechanism 1, an automatic heating module 2, an automatic film cutting and applying module 3, an automatic bending module 4, a high-voltage electrical performance inspection module 5, an AOI visual size inspection module 6, an automatic coding module 7, and an automatic unloading and NG rejection module 8. The device has a linear layout, with each functional module arranged sequentially along a main production line. The device consists of a frame 9, an electrical control cabinet 10, a human-machine interface (HMI), and the aforementioned core functional modules. The core functional modules are mounted on the working platform of the frame, and the electrical control cabinet is located below the frame. A protective cover is provided on the working platform. The actions of each module are uniformly coordinated and controlled by a PLC (Programmable Logic Controller) or an industrial computer.

[0027] like Figure 2 , 3As shown, the aluminum sheet conveying mechanism 1: as the material flow center, across multiple stations, is the core of the realization of the automatic material flow. The aluminum sheet conveying mechanism includes a plurality of clamps 1-1, a lifting cylinder 1-2 for controlling the clamp, a first servo motion module 1-3 for driving the clamp 1-1 horizontal movement. The clamp 1-1 adopts pneumatic finger, which can stably clamp the aluminum sheet. The lifting cylinder 1-2 is installed on the servo motion module 1-3, which is responsible for driving the clamp 1-1 to lift to complete the feeding and discharging action. The servo motion module 1-3 includes a first servo motor, a ball screw driven by the first servo motor, and a first linear guide 1-3-1. The clamp 1-1 is installed on the first linear guide 1-3-1 and connected with the ball screw. The servo motor drives the ball screw to rotate, and then converts it into the linear motion of the ball screw nut. The forward and reverse rotation of the first servo motor controls the clamp to move forward and backward. The first servo motor drives the clamp module to move quickly and accurately in the horizontal direction, and the aluminum sheet is sequentially transferred from the feeding station to the jig of the subsequent machining / detection station.

[0028] The present application designs a special conveying mechanism, which realizes high-precision horizontal positioning by using a first servo motor to drive a ball screw, cooperates with pneumatic clamps and lifting cylinders for picking and placing, realizes high-speed, high-precision and non-damage material transmission, and the positioning accuracy can reach ±0.1mm, which ensures the consistency of product positioning between stations, lays a foundation for subsequent precision machining (such as film pasting, bending and detection), and has fast running speed and low noise. The problems of inaccurate positioning, easy scratching and unstable efficiency of manual handling or simple mechanical hand positioning in the prior art are solved.

[0029] As shown in Figure 4 The automatic heating module 2: for heating the aluminum sheet. It includes a heating jig 2-1 for carrying the aluminum sheet and a heating gun 2-2 located on one side of the heating jig 2-1. The heating gun 2-2 (such as a hot air gun) is fixedly installed on the side of the heating jig, and supplies hot air to the heating jig. The heating jig 5 is a semi-closed chamber structure with an open upper end. The heating jig 2-1 is designed with a positioning carrier 2-3 matching the shape of the aluminum sheet. After the aluminum sheet is placed in the positioning carrier 2-3 at the upper end of the heating jig, a relatively closed space is formed, thereby forming a closed heating chamber. When heating, the heating gun 2-2 blows hot air into the chamber, which quickly heats up, allowing the aluminum sheet to quickly and evenly heat up to a preset temperature (for example, 80-120℃), which is conducive to the adhesion of the PET film.

[0030] The application adopts a heating gun and a customized heating jig to form a relatively sealed heating chamber, realizes rapid, uniform and controllable heating, has high heat energy utilization rate, can accurately heat the aluminum sheet to a set temperature, has small temperature difference, provides the best bonding conditions for the PET film, considers reducing bubbles from the source, improves the film pasting yield, and solves the problems of uneven heating of the aluminum sheet, fast heat energy loss, and inaccurate temperature control in the prior art, which leads to inconsistent film adhesion or bubbles.

[0031] As shown in Figure 5 、 6 The automatic cutting and pasting film mechanism 3 is used for pasting a film on the heated aluminum sheet. The aluminum sheet conveying mechanism conveys the heated aluminum sheet to a film pasting station. The automatic cutting and pasting film mechanism includes a second servo motion module for pressing the PET film and controlling the film pasting length, which is located on the film pasting rack 3-1, and the servo motion module includes a second servo motor 3-2 and a first linear guide rail 3-3 driven by the second servo motor 3-2; a cutting module for cutting the PET film, the PET cutting module includes a mounting bracket 3-4 located on the second linear guide rail 3-3, a vertical linear guide rail 3-5 driven by the second servo motor 3-2 is arranged on the side of the mounting bracket 3-4, and a material placing shaft 3-7 for placing the PET film roll 14, a guide roller 3-8, and a cutting knife 3-9 driven by a pneumatic cylinder are arranged on the vertical linear guide rail 3-5 through a mounting plate 3-6. The PET film roll is mounted on the material placing shaft 3-7, the guide roller 3-8 is guided to the film pasting station, and the released PET film roll can also pass through a tension control mechanism to expand the PET film. The film pasting station includes a first support top plate 3-12 having a load bearing pressure of the aluminum sheet during the film pasting process, and when the aluminum sheet moves to the film pasting station, the support top plate is located below the aluminum sheet.

[0032] The vertical linear guide rail 3-5 is arranged on the vertical linear guide rail 3-5 through the mounting plate 3-6, and the vertical linear guide rail 3-5 is arranged on the vertical linear guide rail 3-5 through the mounting plate 3-6.

[0033] This invention integrates film application and cutting. A second servo module precisely controls the pressing and film feeding length, while a cylinder drives the cutting blade for instantaneous cutting. This achieves fixed-length, flat, and wrinkle-free automatic application of PET film, with high application accuracy and neat edges. The cutting action is clean and efficient, without burrs or streaks, ensuring consistent film size and improving product appearance. It solves the problems of wrinkles, misalignment, and uneven cutting caused by manual film application in existing technologies, as well as unstable film length control in semi-automatic equipment.

[0034] like Figures 7-9 As shown, the automatic bending mechanism 4: the film-coated product is transported to the bending station. This automatic bending mechanism includes a bending frame 4-1, a third servo motion module located on the bending frame 4-1, which presses down on the film-coated aluminum sheet fixed at the bending station to ensure the aluminum sheet's stable position for subsequent bending, and a film-folding module located below and driven by the third servo motion module. The third servo motion module includes a third linear guide 4-5 driven by a third servo motor 4-4. The third linear guide 4-5 is located on the frame platform 4-2 of the bending frame 4-1, and the third servo motor 4-4 is located on a support plate 4-3 below the frame platform 4-2. Several first movable rods 4-6 are provided on the support plate 4-3 to connect the support plate and the frame platform. The movement of the third servo module drives the first movable rods, thereby driving the film-folding module to move.

[0035] The film-folding module includes a drive cylinder 4-7 located below the support plate 4-3 and rollers driven by the drive cylinder 4-7. The drive cylinder 4-7 drives the rollers to bend the PET film covering the aluminum sheet. The rollers include an upper roller 4-8 and a lower roller 4-9, which are mounted below the drive cylinder 7-1 via a connecting seat 4-12. The upper roller 4-8 is located above the lower roller 4-9. The upper roller is a cylindrical roller with the same length as the aluminum sheet, used to bend the excess PET film that exceeds the width of both sides of the aluminum sheet downwards. The lower rollers are multiple small rollers used to flatly bend the bent PET film portion to the side of the aluminum sheet to form an edge.

[0036] A lower pressure plate 4-10 is connected below the support plate 4-3 via a second movable rod 4-11. The lower pressure plate is also driven by a servo motion module to perform downward and upward movements. The size of this lower pressure plate is the same as that of the aluminum sheet to ensure bending accuracy after film application. The rollers mentioned above are located on both sides of the lower pressure plate 4-10 to bend and tidy both sides of the aluminum sheet after film application.

[0037] The third servo motion module drives the lower pressing plate to move downward to stabilize the aluminum sheet in the bending station. Subsequently, the film folding module is started, and the cylinder drives the push roller to move forward, and the upper and lower rollers travel along the edge of the aluminum sheet. The push roller folds the PET film part protruding from the edge of the aluminum sheet to the side in a smooth and flat manner, forming a unified edge.

[0038] The present application combines servo pressing and roller bending. The servo module accurately presses the pressing plate to fix the product, and the cylinder drives the roller to complete the bending according to the set trajectory. The present application realizes high repeatability and consistency of PET film bending, and the bending angle and position can be programmed and kept stable. The bending edge is smooth and neat, which greatly reduces the bending failure rate and has very high production efficiency. The present application solves the problems of manual bending with different angles, uneven edges and low efficiency, and mechanical bending which easily damages the film or product.

[0039] As shown in Figure 10 The high-voltage electrical performance detection mechanism 5: after the product enters the electrical test station, the electrical test is performed. The high-voltage electrical performance detection mechanism includes a driving rod 5-1 driven by a cylinder 5-2 to move up and down, an electrical test fixture 15 carried by a support plate 5-3 above the driving rod 5-1, and a pressing plate 5-4 connected below the electrical test fixture 15. The cylinder 5-2 drives the driving rod 5-1 to descend, and the pressing plate 5-4 descends and tightly presses on the aluminum sheet entering the electrical test station. The electrical test station includes a second support top plate 5-5 with a bearing force to press the aluminum sheet during electrical testing. The product is pressed on the electrical test fixture 15 to ensure good contact between the electrical test probe and the product test point. Subsequently, the high-voltage tester (not shown) is powered on, and the insulation and voltage resistance tests are performed according to the preset program. The test results are transmitted to the control system.

[0040] The present application places the high-voltage electrical performance detection directly in the production line. Compared with the traditional sampling inspection or offline detection, which cannot achieve 100% coverage and may cause defective products to flow out, the present application can realize 100% online automatic electrical performance testing (such as insulation and voltage resistance). The test results are accurate and reliable, and the electrical performance of unqualified products can be intercepted in real time to prevent them from flowing into subsequent processes or customers, thereby improving the reliability of the products leaving the factory.

[0041] As shown in Figure 11 The AOI visual size detection module 6: the electrical test qualified product is sent to the visual station. The AOI visual size detection module includes an upper camera module 6-1 for detecting the size of the top of the product and a lower camera module 6-2 for detecting the size of the bottom of the product. The upper camera module 6-1 is located above the lower camera module 6-2 and is fixed in position by a camera support 6-3, which is fixedly installed on the working platform of the rack 10.

[0042] The detection jig driving mechanism is located between the upper camera module 6-1 and the lower camera module 6-2. The detection jig driving mechanism comprises a servo motor driven fourth linear guide rail 6-4 and a product carrying table 6-5 located on the fourth linear guide rail 6-4. The aluminum sheet is fed onto the product carrying table 6-5 and slides along the fourth linear guide rail 6-4, thereby moving the product. The upper camera module 12 (such as a high-resolution CCD camera combined with a lens and a light source) takes pictures from above to detect the position of the film, the bending angle, surface defects, etc.; the lower camera module 13 takes pictures from the bottom to detect the bottom features or dimensions. The image processing system analyzes the shooting results to determine whether the dimensions are within the tolerance range.

[0043] The upper and lower high-resolution cameras are combined with a movable jig to take multiple-angle pictures and measurements, achieving high-speed, high-precision, and objective full inspection of product appearance (scratches, dirt), key dimensions (length, width, height, film offset, bending angle), eliminating human eye misjudgment, and ensuring that product dimensions meet production requirements.

[0044] As shown in Figure 12 The automatic code spraying module 7: the qualified products are transferred to the code spraying station for visual inspection. The automatic code spraying module 7 is located at the end of the movement path of the detection jig driving mechanism. The automatic code spraying module (such as a small character code spraying machine) sprays two-dimensional code, bar code or character trace information at the specified position of the product according to the system instruction. Each qualified product is given a unique identity, combined with production data records, to establish a perfect quality traceability system.

[0045] As shown in Figures 13-15As shown, the automatic unloading and NG rejection module 8: for unloading of qualified products and rejection of unqualified products. The automatic unloading and NG rejection module 8 comprises: X-axis movement module 8-1, Y-axis movement module 8-2, Z-axis movement cylinder 8-3, X-axis movement module 8-1 is slidably installed on Y-axis movement module 8-2, Z-axis movement cylinder 8-3 is slidably installed on the upper side of Y-axis movement module 8-2. Specifically, the X-axis movement module 15 and the Y-axis movement module 16 are driven by servo motors, the X-axis movement module 8-1 controls the movement in the X direction, and the Y-axis movement module 8-2 controls the movement in the Y direction. The Z-axis movement cylinder 8-3 is installed on the Y-axis module slider, and the Z-axis movement cylinder 8-3 controls the movement in the Z direction, and the lower end is rotatably connected to a connecting plate 8-4, and a vacuum chuck 8-5 is installed through the connecting plate 8-4. Two vacuum chucks 8-5 are arranged on the connecting plate 8-4 to improve the holding force of the aluminum sheet. The automatic unloading and NG rejection module executes actions according to the judgment results of the control system on the products: for qualified products, move to the code spraying station to spray code, and suck the products to move to the belt conveying line 13 to put down; for unqualified products (NG), move to the NG bin 12 beside the equipment to discard.

[0046] The X-axis movement module, the Y-axis movement module, and the Z-axis movement cylinder constitute a three-axis linkage taking and placing mechanism, which is like a three-axis robot that can only sort. According to the electrical and visual detection results, OK products and NG products are automatically sorted into different areas, realizing accurate and efficient sorting at the end of production, avoiding confusion between qualified products and unqualified products, ensuring the qualified rate of outgoing products, and automatically collecting defective products for analysis. It solves the problems of low efficiency and easy errors in manual sorting, which may lead to mixing of materials.

[0047] After the equipment is started, the operator puts the aluminum sheet into the feeding mechanism (such as a feeding machine) for automatic feeding, and a discharging machine can also be used in the discharging link. The aluminum sheet fed is processed: S1: heating step, moving the fed aluminum sheet to the automatic heating module by the aluminum sheet conveying mechanism, heating to a set temperature; S2: film pasting step, moving the heated aluminum sheet to the automatic cutting and film pasting module to automatically complete the length delivery, pasting and cutting of the PET film; S3: bending step, moving the product after film pasting to the automatic bending module to automatically bend the specific edge of the PET film; S4: electrical performance detection step, moving the product after bending to the high-voltage electrical performance detection module for electrical performance test of preset items; S5: visual detection step, moving the product with qualified electrical performance test to the AOI visual size detection module for automatic optical detection of appearance and size; S6: code spraying step, moving the product qualified by visual inspection to the automatic code spraying module to spray trace information; S7: sorting and discharging step, judging the product state by the automatic discharging and NG rejection module: if the product is qualified in S4 and S5, it is moved to the discharging area (such as a conveying belt); if the product is unqualified in any step of S4 or S5, it is moved to the NG recovery container.

[0048] As described in the above embodiment, after feeding, the equipment automatically runs in a cycle, the carrying mechanism takes the material, heating, film pasting, bending, electrical testing, visual inspection, code spraying and sorting and discharging. During the whole process, the man-machine interface displays the production state, count, yield and alarm information in real time.

[0049] The production scheme has integrated automatic layout in the whole process: the processes of feeding, heating, film pasting, bending, electrical testing, visual inspection, code spraying and sorting are integrated in the same production line, connected by the carrying mechanism, seamless continuous production is realized, the waiting and carrying time between processes is eliminated, the single piece production cycle is compressed to about 8 seconds, the production efficiency is improved several times compared with manual or semi-automatic line, and the problems of dispersed production processes, manual transfer, low efficiency and slow cycle in the prior art are solved.

[0050] The present application has the advantages of full automation and intelligent production in the process of aluminum sheet film pasting and bending detection, and has significant advantages in efficiency, quality and cost control.

[0051] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An integrated device for detecting the bending and folding of aluminum sheet under heating film, characterized in that, It includes an aluminum sheet feeding module, an aluminum sheet handling mechanism, an automatic heating module, an automatic cutting and film application module, an automatic bending module, a high-voltage electrical performance testing module, an AOI visual size detection module, an automatic inkjet printing module, and an automatic unloading and NG rejection module, arranged sequentially along the aluminum sheet processing process. The aluminum sheet handling mechanism is used to transfer aluminum sheets between the fixtures of adjacent modules to achieve fully automated continuous production.

2. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The aluminum sheet handling mechanism includes: Several grippers used to hold aluminum sheets; A lifting cylinder that drives the gripper to move vertically; A first servo motion module connected to the gripper and driving the gripper to move horizontally; The servo motion module includes a first servo motor, a ball screw driven by the first servo motor, and a first linear guide rail. The gripper is mounted on the first linear guide rail and connected to the ball screw. The first servo motor drives the ball screw to rotate, which is then converted into linear motion of the ball screw nut. The forward and backward movement of the gripper is controlled by the forward and reverse rotation of the first servo motor.

3. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The automatic heating module includes: a heating gun and a heating fixture for supporting aluminum sheets, wherein the heating gun is located on one side of the heating fixture; The heating fixture is a semi-closed chamber structure with an open top. The upper end of the heating fixture is provided with a positioning position that matches the shape of the aluminum sheet. After the aluminum sheet is transported and placed on the positioning position, the heating fixture and the aluminum sheet together form a relatively closed heating chamber.

4. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The automatic film cutting and applicator module includes: A second servo motion module for pressing down the PET film and controlling the film application length is located on the film application frame. The second servo motion module includes a second linear guide driven by a second servo motor. A cutting module for cutting PET film, the PET cutting module includes a mounting bracket located on a second linear guide rail, a vertical linear guide rail driven by a second motor is provided on the side of the mounting bracket, and a feeding shaft for placing PET film rolls, a guide roller and a cutting blade driven by a cylinder are provided on the vertical linear guide rail via a mounting plate. A pressing mechanism for contacting and flattening the PET film on the surface of an aluminum sheet during film application is fixedly mounted on a mounting plate by a bracket. The pressing mechanism includes a pressing head driven by a cylinder for flattening the film on the surface of the aluminum sheet.

5. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The automatic bending module includes: The third servo motion module, used for pressing down and fixing the aluminum sheet, is located on the bending frame; The folding module is located below the third servo motion module and is driven by the third servo motion module; The third servo motion module includes a third linear guide rail driven by a third servo motor, which is located on the frame platform of the bending machine. The third servo motor is located on a support plate below the frame platform. Several first movable rods are provided on the support plate to connect the support plate and the frame platform. The movement of the third servo module drives the first movable rods to move, thereby driving the folding module to move. A lower pressure plate is connected to the support plate through a second movable rod. The film-folding module includes a drive cylinder located below the support plate and rollers driven by the drive cylinder. The drive cylinder drives the rollers to move to bend the PET film covering the aluminum sheet.

6. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 5, characterized in that, The rollers are arranged on both sides of the lower pressure plate; The roller includes an upper roller and a lower roller, which are mounted below the drive cylinder 7-1 via a connecting seat, with the upper roller located above the lower roller.

7. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The high-voltage electrical performance testing module includes: A drive rod that moves up and down is driven by a cylinder. An electrical testing fixture supported by a bracket plate is provided above the drive rod. A pressure plate is connected below the electrical testing fixture. When the cylinder drives the drive rod to descend, the pressure plate is pressed tightly onto the aluminum sheet that enters the electrical testing station.

8. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The AOI visual size detection module includes: An upper camera module used to detect the top dimensions of a product; A lower camera module used to detect the bottom dimensions of a product; The upper camera module and the lower camera module are fixed in their vertical positions by a camera support pillar; A detection fixture driving mechanism is used to carry the product and move the product horizontally to facilitate shooting. The detection fixture driving mechanism is located between the upper camera module and the lower camera module. The testing fixture driving mechanism includes a fourth linear guide rail driven by a fourth servo motor and a product carrier platform located on the fourth linear guide rail. The aluminum sheet is located on the product carrier platform and slides along the fourth linear guide rail, thereby driving the product to move.

9. The integrated equipment for detecting aluminum sheet heating and film bending according to claim 1, characterized in that, The automatic feeding and NG rejection module includes: X-axis motion module; The Y-axis motion module is slidably connected to the X-axis linear motion module; The Z-axis lifting cylinder is slidably mounted on the Y-axis linear motion module; A vacuum suction cup, installed at the actuator end of the Z-axis lifting cylinder, is used to pick up and transfer the product.

10. A processing method using an aluminum sheet heating and film-applying bending inspection device according to any one of claims 1-9, characterized in that, The steps are executed in the following order: S1: Heating, the aluminum sheet is transferred to the automatic heating module for heating by the aluminum sheet conveying mechanism; S2: Film application: The heated aluminum sheet is transferred to the automatic cutting and film application module to complete the automatic application and cutting of the PET film; S3: Bending, the film-coated product is transferred to the automatic bending module for automatic bending of the PET film; S4: Electrical performance test. The bent product is transferred to the high-voltage electrical performance test module for electrical performance testing of preset items. S5: Visual inspection, transferring products that have passed the electrical performance test to the AOI visual size inspection module for automatic optical inspection of appearance and size; S6: Inkjet printing. Products that pass the size inspection are transferred to the automatic inkjet printing module for printing traceability information. S7: Sorting and unloading. Based on the results of the electrical performance testing and visual inspection steps, qualified products are transferred to the unloading area and unqualified products are transferred to the NG recycling area through the automatic unloading and NG rejection module.

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