FPC attaching apparatus and attaching method

Abstract

The application relates to the technical field of automation equipment, and relates to an FPC wrapping device and a wrapping method thereof, which comprise an FPC feeding module, a product feeding module, a wrapping module and a control system. The wrapping module comprises a taking module and an FPC positioning and assembling module, the FPC positioning and assembling module is provided with a plurality of groups of FPC overturning and placing mechanisms, and is configured with a multi-point controllable electromagnetic iron adsorption mechanism. When wrapping, the control system controls the electromagnetic iron mechanism to eliminate the adsorption force point by point along the linear direction, and synchronously controls the rotation of the product and the linear displacement compensation of the FPC positioning and assembling module, so that the FPC material is gradually attached to the circumferential side of the product through the linkage of the three parties. The application can realize the full-process automation of FPC wrapping, utilize the point-by-point release and dynamic compensation technology to ensure that the FPC is uniformly stressed, effectively avoid the pulling damage and creases, and significantly improve the production efficiency and product consistency.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and more specifically, to an FPC wrapping device and a wrapping method thereof. Background Technology

[0002] In the electronics manufacturing industry, especially in the production of camera modules, the attachment of flexible printed circuit boards (FPCs) is a critical process. Typically, long strips of flexible FPCs need to be precisely attached to the periphery of square or near-square camera modules to achieve circuit connections and signal transmission. Due to the high flexibility and elongated shape of FPCs, automated and precise positioning and attachment are highly challenging, and currently, the process relies mainly on manual operation. However, manual attachment has significant limitations. On the one hand, manual operation has low production efficiency, making it difficult to meet the high-paced demands of large-scale automated production. On the other hand, because FPCs are fragile and require high alignment precision, uneven force control or operational errors during attachment or alignment can easily cause physical damage to the FPC, leading to increased product defect rates and significantly increased production costs. In other words, due to the high flexibility and elongated shape of FPCs, it is difficult to ensure uniform force during manual attachment, easily causing tensile damage or creases. Furthermore, the limited alignment precision of manual attachment results in low production efficiency and poor product consistency. In addition, existing simple automation attempts often fail to achieve stable adsorption and point-by-point release of FPC during the encapsulation process, which can easily lead to wrinkling, displacement, or loose encapsulation during the encapsulation process. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides an FPC coating device and a coating method thereof. Through a high-precision mechanical linkage structure and a multi-point controllable adsorption and release mechanism, the entire process of FPC from feeding, positioning, flipping to coating is automated. While improving production efficiency, the multi-party linkage technology ensures the stability of the force during the FPC coating process, thereby reducing the product defect rate.

[0004] The present invention adopts the following solution:

[0005] An FPC encapsulation device, comprising: The FPC feeding module is configured to feed an FPC jig tray for carrying FPC material to a first buffer position; The product feeding module is configured to feed a product jig tray for carrying the product to be packaged to the second buffer position; The packaging module includes a material handling module and an FPC positioning and assembly module; wherein... The material handling module includes a first material handling module and a second material handling module. The first material handling module is configured to transfer the FPC material in the FPC fixture tray to the FPC positioning and assembly module. The second material handling module is configured to pick up the product in the product fixture tray and place it into the side space of the FPC positioning and assembly module, and drive the product to rotate in a controlled manner during the attachment execution phase. The FPC positioning and assembly module includes a linear motion module and several sets of FPC flipping and placement mechanisms arranged on the linear motion module. The FPC flipping and placement mechanism is provided with a multi-point controllable electromagnet adsorption mechanism, which is configured to adsorb different points of the FPC material distributed along its length. The FPC flipping and placement mechanism is connected to a rotation drive source to drive it to perform a 90-degree flipping action after adsorbing the FPC material, so that the coating surface of the FPC material faces the product. The control system is electrically connected to the FPC positioning and assembly module and the material handling module. When executing the wrapping procedure, the control system outputs control commands to cut off the current of the multi-point controllable electromagnet adsorption mechanism one by one along the extension direction of the FPC material to eliminate the magnetic adsorption force point by point, and simultaneously controls the second material handling module to drive the product to rotate and controls the linear motion module to drive the FPC positioning and assembly module to perform compensatory linear displacement towards the center of the product.

[0006] Furthermore, the FPC flipping and placement mechanism includes a support frame and an elongated rotating block mounted on the support frame via a rotating shaft; the support frame is equipped with a rotating cylinder serving as a rotation drive source, and the output end of the rotating cylinder is connected to the elongated rotating block; a contoured positioning groove for accommodating FPC material is formed on the surface of the elongated rotating block, and the bottom of the positioning groove is embedded with the multi-point controllable electromagnet adsorption mechanism, which includes multiple independently controlled electromagnetic coils; a detection sensor for confirming the material state is provided on the elongated rotating block; The bottom of the support frame is provided with a fine-tuning mechanism, which includes an angle adjustment platform and an XY axis adjustment platform. The XY axis adjustment platform is configured to adjust the physical position of the FPC flipping and placing mechanism in the horizontal and longitudinal dimensions. The angle adjustment platform is configured to adjust the deflection angle of the FPC flipping and placing mechanism in the horizontal plane, so as to adjust the position and angle of adjacent FPC flipping and placing mechanisms to adapt to the spacing and placement angle of adjacent FPC materials in different FPC fixture trays.

[0007] Furthermore, a limiting stud is horizontally installed on the support frame, and the end of the limiting stud extends into the rotation path of the elongated rotating block to limit the flipping stroke; the electrical circuits of the multi-point controllable electromagnet adsorption mechanism and the detection sensor are led outward through the wire hole.

[0008] Furthermore, the attachment module includes a first attachment module and a second attachment module symmetrically arranged; The packaging module includes a first packaging module and a second packaging module; the FPC feeding module includes two sets of FPC feeding synchronous belts symmetrically arranged in the areas of the first packaging module and the second packaging module; a common empty disc collection module is provided at the conveying end of the two sets of FPC feeding synchronous belts; a full material loading module and a corresponding FPC material unloading station are configured at the starting feeding end of each set of FPC feeding synchronous belts; The product feeding module includes a product conveyor module that runs through the first packaging module and the second packaging module; the first packaging module is configured to perform operations on products in a first preset area within the product fixture tray, and the second packaging module is configured to perform operations on products in a second preset area within the product fixture tray.

[0009] Furthermore, a support platform is provided on the FPC material handling station, and a fixture positioning top plate is provided on the support platform. The fixture positioning top plate is connected to a lifting slide cylinder for driving the fixture positioning top plate to rise and fall. A blocking cylinder and a positioning proximity switch are provided on the side of the support platform near the empty disc material collection module. The full-load loading module includes a first tray positioning frame disposed above the FPC feeding synchronous belt and a first tray support mechanism disposed on opposite sides of the first tray positioning frame. The first tray support mechanism is provided with a telescopic support block to support the FPC jig tray below. A first lifting mechanism is disposed below the first tray support mechanism. The first lifting mechanism is used to support the lowest FPC jig tray to lift it from the first tray positioning frame to the FPC feeding synchronous belt below. The empty tray collection module includes a second tray positioning frame disposed above the FPC feeding synchronous belt, and a retractable second tray support mechanism disposed on the second tray positioning frame; a second lifting mechanism is disposed below the second tray positioning frame to lift the empty FPC jig tray on the FPC feeding synchronous belt into the second tray positioning frame and support it by the second tray support mechanism.

[0010] Furthermore, the FPC positioning and assembly module is set directly above the FPC feeding synchronous belt via a gantry frame, and a vision inspection module is set above the FPC material picking station. The vision inspection module is configured to identify the center coordinates and deflection angle of the FPC material and feed the data back to the control system to drive the fine-tuning mechanism to perform automatic alignment.

[0011] Furthermore, the material handling module includes a dual-action sub-module and a first material handling module and a second material handling module disposed on the dual-action sub-module. The second material handling module is provided with a plurality of rotatable electric grippers for handling products, and the first material handling module is provided with a plurality of gripping modules for handling FPC materials. The gripping modules include a buffer mechanism and an electromagnet module connected to the buffer mechanism. The electromagnet module is used to adsorb FPC materials.

[0012] Furthermore, each of the FPC positioning and assembly modules includes four sets of the FPC flipping and placement mechanisms, and the electric gripper and the grasping module are respectively provided with four sets.

[0013] Furthermore, the elongated rotating block is provided with a wire-passing hole along the axial direction for connecting and exporting internal cables.

[0014] The present invention also provides an FPC encapsulation method, using any one of the FPC encapsulation devices described in the present invention, comprising the following steps: S1. Feeding and Fine-tuning Stage: The FPC feeding module transports the jig tray fully loaded with FPC material to the picking position, while the product feeding module transports the product jig tray to the work position. The vision inspection module performs photo scanning on the FPC jig tray at the FPC picking position, and the control system drives the XY axis adjustment table and angle adjustment table at the bottom of the FPC positioning and assembly module to perform displacement and rotation compensation. S2, FPC gripping and flipping stage: The first material grabbing module grabs the FPC material and places it in the FPC flipping and placing mechanism. The FPC material is locked by energizing the multi-point controllable electromagnet adsorption mechanism. Then, the long strip rotating block is driven to flip 90 degrees so that the coating surface of the FPC material faces the side wall of the product. S3, Product Alignment Stage: The second material handling module grabs the product to be processed and moves it to the side of the flipped FPC material, so that the starting surface of the product is spatially aligned with the starting end of the FPC material. S4, Linkage and Attachment Stage: The control system synchronously outputs three sets of motion commands. Command 1 controls the second material picking module to drive the product to rotate around the central axis. Command 2 controls the linear motion module to drive the FPC positioning and assembly module to perform linear compensation motion. Command 3 controls the multi-point controllable electromagnet adsorption mechanism to turn off the current of the electromagnetic coils one by one along the length of the FPC, so that the FPC material gradually adheres to the periphery of the product. S5. Reset and Cycling Stage: After the packaging is completed, the second material handling module puts the finished product back into the product fixture tray, and the FPC flipping and placement mechanism flips and resets in the opposite direction.

[0015] Beneficial effects: The FPC encapsulation device and encapsulation method provided by this invention have the following significant advantages compared with the prior art: Firstly, it achieves a high degree of automation and a leap in production efficiency. Through the symmetrical dual-station layout of the first and second packaging modules, coupled with a division of labor gripping mechanism, a single machine can process multiple products simultaneously, eliminating the efficiency bottleneck of manual operation and greatly improving the output per unit time of the camera module production line.

[0016] Secondly, it significantly improves the wrapping accuracy and provides effective protection for flexible materials. This invention's innovative "multi-point controllable electromagnet adsorption" combined with a three-pronged linkage technology of "point-by-point demagnetization, product rotation, and linear compensation" changes the traditional mechanical, rigid stretching wrapping mode. During the wrapping process, the FPC is in a controlled, gradual release state. The real-time compensation of the linear motion module eliminates tension fluctuations caused by the non-circular shape of the product, resulting in extremely uniform force on the FPC during wrapping. This effectively solves persistent quality problems such as wrinkling, bubbles, and tearing, significantly reducing the product defect rate.

[0017] Thirdly, it possesses strong compatibility and flexible production capabilities. By integrating a vision inspection module and a multi-axis fine-tuning mechanism (angle adjustment stage and XY axis adjustment stage), the device can identify and automatically compensate for material placement deviations in the fixture tray in real time. This automatic compensation mechanism enables the equipment to quickly adapt to FPC materials of different sizes and spacings, shortening the line changeover and debugging cycle.

[0018] Fourth, the mechanical structure is scientifically designed and highly stable in operation. The use of a dual-actuator linear motor module and a gantry frame structure ensures high dynamic response and positioning accuracy during material handling and transfer. The limiting stud design of the rotating block guarantees long-term repeatability of the flipping angle, while the wire-through hole structure fundamentally solves the problem of cable fatigue fracture under high-frequency flipping motions.

[0019] In summary, this invention, through its ingenious mechanical structure design and advanced synchronous control logic, provides the electronics manufacturing industry with a highly efficient, precise, and high-yield automated FPC packaging solution, possessing extremely high engineering application value and economic benefits. Attached Figure Description

[0020] Figure 1 This is an overall schematic diagram of an FPC encapsulation device after removing the outer shell according to an embodiment of the present invention; Figure 2 This is a schematic diagram of an FPC packaging device with the material handling module hidden, according to an embodiment of the present invention. Figure 3 This is a schematic diagram of an FPC positioning and assembly module of an FPC attachment device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of an FPC flipping and placing mechanism of an FPC encapsulation device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the material handling module of an FPC encapsulation device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the FPC material handling station of an FPC encapsulation device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the first lifting mechanism of an FPC encapsulation device according to an embodiment of the present invention; Figure 8 This is a schematic diagram of an FPC wrapping device according to an embodiment of the present invention after FPC material has been wrapped around the product; Figure 9 This is a schematic diagram of a product before it is coated with FPC material according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the FPC material before it is coated using an FPC coating device according to an embodiment of the present invention; Figure label: 1. FPC feeding module; 11. FPC feeding synchronous belt; 12. Full material loading module; 121. First material tray positioning frame; 122. First material tray support mechanism; 123. First lifting mechanism; 13. Empty tray material collection module; 131. Second material tray positioning frame; 132. Second material tray support mechanism; 133. Second lifting mechanism; 14. FPC material picking station; 141. Fixture positioning top plate; 142. Lifting slide cylinder; 143. Blocking cylinder; 144. Position proximity switch; 2. Product feeding module; 21. Product assembly line conveyor module; 3. Packaging module; 31. First packaging module; 32. Second packaging module; 4. Material handling module; 41. First material handling module; 42. Second material handling module; 43. Dual-actuator linear motor module; 44. Electric gripper; 45. Gripping assembly; 451. Buffer mechanism; 452. Electromagnetic adsorption head; 5. FPC positioning and assembly module; 51. Linear motion module; 52. FPC flipping and placement mechanism; 521. Support frame; 522. Long strip rotating block; 523. Rotary swing cylinder; 524. Positioning groove; 525. Multi-point controllable electromagnet adsorption mechanism; 526. Detection sensor; 527. Limiting stud; 528. Wire hole; 531. Angle adjustment table; 532. XY axis adjustment table; 54. Gantry support frame; 6. Visual inspection module. Detailed Implementation

[0021] Combination Figures 1 to 10 As shown in the figure, this embodiment provides an FPC wrapping device and method, mainly used to solve the automation problem of flexible circuit board wrapping in the camera module production process. To make the technical solution and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figure 1 and Figure 2 In this embodiment, the FPC encapsulation device adopts a modular and symmetrical design in its overall layout, mainly composed of core components such as the FPC feeding module 1, the product feeding module 2, the encapsulation module 3, and the vision inspection module 6. The FPC feeding module 1 is arranged on both sides of the equipment and is used to accurately transport the jig tray carrying the FPC material to the predetermined first buffer position. The product feeding module 2 adopts a through-type design, and its core is the product assembly line conveyor module 21. This module uses a belt or chain driven by a stepper motor to transport the product jig tray loaded with products to be encapsulated (such as camera housings) sequentially along a straight path to the working area of ​​the encapsulation module 3. The encapsulation module 3 is physically divided into a symmetrically arranged first encapsulation module 31 and a second encapsulation module 32. This dual-station configuration allows the equipment to process products in different areas of the product jig tray in parallel within the same time period. Specifically, the first package module 31 is responsible for grabbing and processing several products in the front row of the product fixture tray, while the second package module 32 is responsible for processing the products in the back row. This division of labor and cooperation mode directly increases production efficiency by nearly 100%.

[0023] On the supply side of FPC materials, combined with Figures 1 to 4As shown, the FPC feeding module 1 includes two sets of FPC feeding synchronous belts 11, symmetrically arranged within the first attachment module 31 and the second attachment module 32. A full-load loading module 12 is configured at the feeding end of each set of FPC feeding synchronous belts 11. This module includes a vertically erected first tray positioning frame 121. First tray support mechanisms 122 are installed on opposite sides of the frame. These mechanisms utilize cylinder-driven telescopic support blocks to stably support the entire stack of fully loaded FPC jig trays. A first lifting mechanism 123 is located directly below the first tray positioning frame 121. When the system issues a replenishment command, the first lifting mechanism 123 moves upward to lift the bottommost jig tray. At this time, the support blocks of the first tray support mechanism 122 retract, and the lifting mechanism then slowly descends, smoothly placing the bottommost jig tray onto the FPC feeding synchronous belt 11, thereby achieving fully automatic tray-by-tray unloading. When the FPC jig tray is conveyed to the FPC picking station 14, the lower lifting slide cylinder 142 extends, driving the jig positioning top plate 141 to lift upwards, raising the jig tray from the synchronous belt surface and locking it at the predetermined picking height. To prevent the jig tray from shifting position, a blocking cylinder 143 and a positioning proximity switch 144 are also provided on the side of the jig positioning top plate 141 near the empty tray collection module 13, ensuring that the picking action is performed in an absolutely stationary and accurately positioned state.

[0024] Combination Figure 1 and Figure 2 As shown, the empty tray collection module 13 includes a second tray positioning frame 131 disposed above the FPC feeding synchronous belt 11. A retractable second tray support mechanism 132 is provided on the second tray positioning frame 131. A second lifting mechanism 133 is disposed below the second tray positioning frame 131 to lift the empty FPC jig trays on the FPC feeding synchronous belt 11 into the second tray positioning frame 131, where they are supported by the second tray support mechanism 132. In other words, the operation of the empty tray collection module 13 is exactly the opposite of that of the full-load module 12; it is used to stack empty FPC jig trays, which can then be unloaded manually or by a robotic arm.

[0025] Reference Figure 3 and Figure 4The FPC positioning and assembly module 5 spans directly above the FPC feeding synchronous belt 11 via a gantry support frame 54. The FPC positioning and assembly module 5 includes a high-precision linear motion module 51, on which four sets of FPC flipping and placing mechanisms 52 are arranged in parallel on the gantry support frame 54 of the linear motion module 51's slider. Each set of FPC flipping and placing mechanisms 52 includes a support frame 521, the bottom of which integrates a fine-tuning mechanism. This fine-tuning mechanism is composed of an angle adjustment table 531 and an XY axis adjustment table 532 stacked together. In actual production, due to manufacturing tolerances of the jig disc or slight offsets of the material within the slot, the positions of the FPC materials are often not perfectly consistent. Using images captured by the vision inspection module 6, the control system calculates the coordinate deviation of each FPC material and drives the corresponding XY axis adjustment table 532 to perform longitudinal and transverse displacement compensation in the horizontal plane. Simultaneously, it drives the angle adjustment table 531 to perform rotational compensation, thereby ensuring that the centerline of the FPC flipping and placing mechanism 52 perfectly coincides with the actual axis of the FPC material. It should be noted that, in one embodiment, when the FPC fixture plate has high precision, the XY axis adjustment stage 532 and angle adjustment stage 531 mentioned here can also be adjusted manually, and only fine adjustments are needed at the beginning of each batch of fixture plate loading.

[0026] Combination Figure 4As shown, the FPC flipping and placement mechanism 52 has a long strip-shaped rotating block 522 mounted on the support frame 521 via a rotating shaft. It is driven by a side-mounted rotating cylinder 523 to perform a 90-degree flipping motion. Precise contouring positioning grooves 524 are machined on the surface of the long strip-shaped rotating block 522 for embedding and placing the FPC material. A multi-point controllable electromagnet adsorption mechanism 525 is evenly embedded along the length of the bottom of the positioning groove 524. This adsorption mechanism consists of multiple miniature electromagnetic coils, each connected to an independent output port of the control system, thereby achieving independent adsorption control of different sections of the FPC material. A detection sensor 526 is also embedded at the geometric center of the long strip-shaped rotating block 522 to monitor in real time whether the FPC material is in place or whether it falls off during the flipping process. To ensure absolute accuracy of the flipping motion, a limiting stud 527 is horizontally screwed into the support frame 521. This stud physically locks the stroke of the rotating block at the 90-degree position. Furthermore, considering the losses to electrical circuits caused by high-frequency rotation, the elongated rotating block 522 has a through-hole 528 along its axial direction. All electromagnet control wires and sensor signal wires are led out through this hole, effectively avoiding fatigue fracture caused by cable entanglement and ensuring the long-term operational stability of the equipment. It should be noted that since camera modules are often rectangular / irregularly shaped, the radius from the sidewall to the central axis changes continuously during rotation. Therefore, by synchronously controlling the product rotation and coordinating with the linear compensation displacement of the FPC positioning and assembly module, the normal bonding pressure between the FPC and the product surface can be kept stable during the wrapping and bonding process, where the product's cross-sectional radius changes with the rotation angle, without introducing complex force control.

[0027] In terms of the transfer system, the material handling module 4 uses a dual-moving linear motor module 43 as its power core. Two independently moving moving parts are configured on the long stator of this module, respectively supporting the first material handling module 41 and the second material handling module 42. The first material handling module 41 is equipped with four sets of gripping components 45 for picking up FPC materials. Each gripping component 45 includes a buffer mechanism 451 with flexible avoidance function and an electromagnet suction head 452 at its end. When the electromagnet suction head 452 descends and contacts the FPC material, the buffer mechanism 451 absorbs the impact force through an internal spring, preventing damage to the flexible FPC substrate. The second material handling module 42 is equipped with four sets of rotary electric grippers 44 driven by servo motors. These grippers are not only responsible for picking up camera module products from the product line conveyor module 21, but more importantly, during the attachment process, they are controlled to perform precise angular rotation, forming a dynamic linkage with the mechanism below.

[0028] A vision inspection system is installed above the FPC material handling station 14. The vision inspection system includes a light source and a camera module, which is used to detect and identify the position of the FPC material in the FPC fixture tray.

[0029] It should be noted that the product has magnetic components inside for adsorbing FPC material, or an adhesive material can be pre-coated on the outer periphery of the product for adhering FPC material.

[0030] Another embodiment of the present invention also provides an FPC packaging method, which, in conjunction with the above hardware structure, has the following specific operating principle and process flow: S1. Feeding and Visual Correction Stage: The FPC feeding synchronous belt 11 transports the jig tray fully loaded with FPC materials to the FPC unloading station 14. The lifting slide cylinder 142 drives the jig positioning top plate 141 to lift and fix it. At this time, the vision inspection module 6 located above takes pictures of the four FPC materials in the jig tray using an industrial camera. The image processing system identifies the center position and tilt angle of each FPC material and feeds the data back to the control system. The control system then instructs the XY axis adjustment table 532 and angle adjustment table 531 at the bottom of the FPC positioning assembly module 5 to perform compensation actions, so that the positioning slots 524 of the four sets of FPC flipping and placing mechanisms 52 are spatially aligned with the materials in the jig tray. At the same time, the product assembly line conveyor module 21 transports the jig tray of products to be processed to the packaging station. By combining the vision inspection module 6 with the fine-tuning component, automatic alignment compensation can be achieved without reducing the cycle time when there are manufacturing tolerances in the FPC fixture disk or slight material offset in the slot, so as to ensure the consistency of the bonding reference at the beginning of the wrapping.

[0031] S2, FPC Gripping and Vertical Flipping Stage: The first picking module 41 moves along the dual-actuator linear motor module 43 to above the FPC picking station 14. The gripping component 45 descends, and the electromagnet adsorption head 452 is energized to generate magnetic force to pick up the FPC material, which is then transferred and placed in the pre-aligned positioning slot 524. At this time, the multi-point controllable electromagnet adsorption mechanism 525 inside the FPC flipping and placing mechanism 52 is immediately energized, firmly locking the FPC material at the bottom of the slot. After confirming that the adsorption is complete, the rotary swing cylinder 523 is activated, driving the long strip rotating block 522 to flip upwards by ninety degrees. This action switches the FPC material from a horizontal state to a vertical standing state, with its coating surface facing the space where the product is about to enter.

[0032] S3, Product Precision Alignment Stage: The second material handling module 42 drives the electric gripper 44 to pick up four camera modules from the product fixture tray and move them to the side of the FPC positioning and assembly module 5. The control system uses precise coordinate calculations to ensure that the initial attachment sidewall of each product and the corresponding vertically erected FPC material start end achieve physical contact or a very small preset gap.

[0033] S4. Three-way linkage attachment stage: In this stage, the control system outputs three highly synchronized control commands. The first command controls the electric gripper 44 to slowly rotate the product around its own geometric central axis. The second command controls the linear motion module 51 to drive the entire FPC positioning and assembly module 5 to perform linear compensation displacement along the axis close to or away from the product. Since the camera module is usually rectangular or irregularly shaped, the radius from its sidewall to the central axis changes continuously during rotation. This compensation displacement of the linear motion module 51 ensures that the FPC material adheres to the product surface with constant pressure during rotation. The third command controls the multi-point controllable electromagnet adsorption mechanism 525. As the product rotates, the FPC material is gradually pulled towards the product surface. The control system cuts off the current of the electromagnetic coils one by one along the length direction according to the order of contact. This point-by-point demagnetization and release technology allows the FPC material to smoothly adhere to the outer periphery of the product in a completely controlled state, like peeling off tape, effectively preventing wrinkling caused by overall release or FPC tearing caused by hard pulling. It is important to note that the point-by-point demagnetization and release mentioned here refers to sequentially cutting off power along the length of the FPC from the beginning to the end, with the timing of power cut-off corresponding to the product's rotation angle / bonding position. This method allows for a smooth transition from adsorption constraint to adhesion constraint on the product surface during the wrapping process of the flexible strip FPC, avoiding transient impacts, rebounds, wrinkles, or positional slippage caused by releasing elastic energy when the entire constraint is released. Furthermore, in continuous wrapping and bonding, by organizing the timing of segmented release, unbonded sections can be pulled and bonded, while bonded sections remain constrained, preventing secondary displacement and wrinkle accumulation caused by reverse pulling of bonded sections.

[0034] S5. Material Discharge and Equipment Reset Stage: After the wrapping operation is successfully completed, the second material handling module 42 accurately places the wrapped finished product back into its original slot on the product fixture tray. The rotary swing cylinder 523 drives the elongated rotating block 522 to rotate 90 degrees in the opposite direction, returning it to the horizontal waiting position. When the material in the FPC fixture tray is emptied, the blocking cylinder retracts, and the empty tray is conveyed to the empty tray collection module 13 at the end. The second lifting mechanism 133 receives the empty tray below and pushes it upward into the second tray positioning frame 131, where it is stacked and collected by the second tray support mechanism 132, thus completing a complete production cycle.

[0035] This invention achieves a fully automated closed loop from bulk material trays to finished product output through this ingenious mechanical linkage and electromagnetic control logic. In particular, the combination of the fine-tuning mechanism and visual inspection gives the equipment extremely strong compatibility, enabling it to quickly adapt to camera modules of different sizes and specifications, providing a highly efficient and reliable solution for the field of precision electronic manufacturing.

[0036] It should be understood that the above are merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0037] The accompanying drawings used in the above embodiments only illustrate certain embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. An FPC encapsulation device, characterized in that, include: The FPC feeding module is configured to feed an FPC jig tray for carrying FPC material to a first buffer position; The product feeding module is configured to feed a product jig tray for carrying the product to be packaged to the second buffer position; The packaging module includes a material handling module and an FPC positioning and assembly module; wherein... The material handling module includes a first material handling module and a second material handling module. The first material handling module is configured to transfer the FPC material in the FPC fixture tray to the FPC positioning and assembly module. The second material handling module is configured to pick up the product in the product fixture tray and place it into the side space of the FPC positioning and assembly module, and drive the product to rotate in a controlled manner during the attachment execution phase. The FPC positioning and assembly module includes a linear motion module and several sets of FPC flipping and placement mechanisms arranged on the linear motion module. The FPC flipping and placement mechanism is provided with a multi-point controllable electromagnet adsorption mechanism, which is configured to adsorb different points of the FPC material distributed along its length. The FPC flipping and placement mechanism is connected to a rotation drive source to drive it to perform a 90-degree flipping action after adsorbing the FPC material, so that the coating surface of the FPC material faces the product. The control system is electrically connected to the FPC positioning and assembly module and the material handling module. When executing the wrapping procedure, the control system outputs control commands to cut off the current of the multi-point controllable electromagnet adsorption mechanism one by one along the extension direction of the FPC material to eliminate the magnetic adsorption force point by point, and simultaneously controls the second material handling module to drive the product to rotate and controls the linear motion module to drive the FPC positioning and assembly module to perform compensatory linear displacement towards the center of the product.

2. The FPC encapsulation device according to claim 1, characterized in that, The FPC flipping and placement mechanism includes a support frame and an elongated rotating block mounted on the support frame via a rotating shaft; the support frame is equipped with a rotating cylinder as a rotation drive source, and the output end of the rotating cylinder is connected to the elongated rotating block; a contoured positioning groove for accommodating FPC material is formed on the surface of the elongated rotating block, and a multi-point controllable electromagnet adsorption mechanism is embedded in the bottom of the positioning groove, the multi-point controllable electromagnet adsorption mechanism including multiple independently controlled electromagnetic coils; a detection sensor for confirming the material state is provided on the elongated rotating block; The bottom of the support frame is provided with a fine-tuning mechanism, which includes an angle adjustment platform and an XY axis adjustment platform. The XY axis adjustment platform is configured to adjust the physical position of the FPC flipping and placing mechanism in the horizontal and longitudinal dimensions. The angle adjustment platform is configured to adjust the deflection angle of the FPC flipping and placing mechanism in the horizontal plane, so as to adjust the position and angle of adjacent FPC flipping and placing mechanisms to adapt to the spacing and placement angle of adjacent FPC materials in different FPC fixture trays.

3. The FPC encapsulation device according to claim 2, characterized in that, A limiting stud is horizontally installed on the support frame, and the end of the limiting stud extends into the rotation path of the elongated rotating block to limit the flipping stroke; the electrical circuits of the multi-point controllable electromagnet adsorption mechanism and the detection sensor are led out through the wire hole.

4. The FPC encapsulation device according to claim 2, characterized in that, The attachment module includes a first attachment module and a second attachment module arranged symmetrically. The packaging module includes a first packaging module and a second packaging module; the FPC feeding module includes two sets of FPC feeding synchronous belts symmetrically arranged in the areas of the first packaging module and the second packaging module; a common empty disc collection module is provided at the conveying end of the two sets of FPC feeding synchronous belts; a full material loading module and a corresponding FPC material unloading station are configured at the starting feeding end of each set of FPC feeding synchronous belts; The product feeding module includes a product conveyor module that runs through the first packaging module and the second packaging module; the first packaging module is configured to perform operations on products in a first preset area within the product fixture tray, and the second packaging module is configured to perform operations on products in a second preset area within the product fixture tray.

5. The FPC encapsulation device according to claim 4, characterized in that, The FPC material handling station is equipped with a support platform, the support platform is equipped with a fixture positioning top plate, the fixture positioning top plate is connected to a lifting slide cylinder for driving the fixture positioning top plate to rise and fall, and a blocking cylinder and a positioning proximity switch are provided on the side of the support platform near the empty disc material collection module. The full-load loading module includes a first tray positioning frame disposed above the FPC feeding synchronous belt and a first tray support mechanism disposed on opposite sides of the first tray positioning frame. The first tray support mechanism is provided with a telescopic support block to support the FPC jig tray below. A first lifting mechanism is disposed below the first tray support mechanism. The first lifting mechanism is used to support the lowest FPC jig tray to lift it from the first tray positioning frame to the FPC feeding synchronous belt below. The empty tray collection module includes a second tray positioning frame disposed above the FPC feeding synchronous belt, and a retractable second tray support mechanism disposed on the second tray positioning frame; a second lifting mechanism is disposed below the second tray positioning frame to lift the empty FPC jig tray on the FPC feeding synchronous belt into the second tray positioning frame and support it by the second tray support mechanism.

6. The FPC encapsulation device according to claim 5, characterized in that, The FPC positioning and assembly module is set directly above the FPC feeding synchronous belt via a gantry frame, and a vision inspection module is set above the FPC material picking station. The vision inspection module is configured to identify the center coordinates and deflection angle of the FPC material and feed the data back to the control system to drive the fine-tuning mechanism to perform automatic alignment.

7. The FPC encapsulation device according to claim 6, characterized in that, The material handling module includes a dual-action sub-module and a first material handling module and a second material handling module disposed on the dual-action sub-module. The second material handling module is provided with several sets of rotatable electric grippers for picking up products. The first material handling module is provided with several gripping modules for picking up FPC materials. The gripping modules include a buffer mechanism and an electromagnet module connected to the buffer mechanism. The electromagnet module is used to adsorb FPC materials.

8. The FPC encapsulation device according to claim 7, characterized in that, Each of the FPC positioning and assembly modules includes four sets of FPC flipping and placement mechanisms, and the electric gripper and the gripping module are respectively provided with four sets.

9. The FPC encapsulation device according to claim 2, characterized in that, The elongated rotating block has a wire-passing hole along its axial direction for connecting and routing internal cables.

10. An FPC encapsulation method, characterized in that, The FPC encapsulation device according to any one of claims 1-9 includes the following steps: S1. Feeding and Fine-tuning Stage: The FPC feeding module transports the jig tray fully loaded with FPC material to the picking position, while the product feeding module transports the product jig tray to the work position. The vision inspection module performs photo scanning on the FPC jig tray at the FPC picking position, and the control system drives the XY axis adjustment table and angle adjustment table at the bottom of the FPC positioning and assembly module to perform displacement and rotation compensation. S2, FPC gripping and flipping stage: The first material grabbing module grabs the FPC material and places it in the FPC flipping and placing mechanism. The FPC material is locked by energizing the multi-point controllable electromagnet adsorption mechanism. Then, the long strip rotating block is driven to flip 90 degrees so that the coating surface of the FPC material faces the side wall of the product. S3, Product Alignment Stage: The second material handling module grabs the product to be processed and moves it to the side of the flipped FPC material, so that the starting surface of the product is spatially aligned with the starting end of the FPC material. S4, Linkage and Attachment Stage: The control system synchronously outputs three sets of motion commands. Command 1 controls the second material picking module to drive the product to rotate around the central axis. Command 2 controls the linear motion module to drive the FPC positioning and assembly module to perform linear compensation motion. Command 3 controls the multi-point controllable electromagnet adsorption mechanism to turn off the current of the electromagnetic coils one by one along the length of the FPC, so that the FPC material gradually adheres to the periphery of the product. S5. Reset and Cycling Stage: After the packaging is completed, the second material handling module puts the finished product back into the product fixture tray, and the FPC flipping and placement mechanism flips and resets in the opposite direction.

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