Automatic rubber coating machine for graphics card golden finger and working method

Abstract

The invention provides a graphics card golden finger automatic rubber coating machine and a working method, and belongs to the technical field of graphics card golden finger automatic rubber coating machines.The graphics card golden finger automatic rubber coating machine comprises a machining table, a conveying frame and two gummed paper feeding devices are fixedly installed on the upper side of the machining table, and fixing frames are fixedly installed on the two sides of the conveying frame; stable and high-precision automatic clamping and positioning are achieved, balanced and stable clamping force can be applied from the two sides of a golden finger, infinitesimal displacement or shaking of a display card in the rubber coating process is effectively prevented, a reliable positioning basis is provided for subsequent high-quality rubber coating operation, the adaptability and universality of equipment are enhanced, and the production efficiency is improved. The device can meet the rubber coating requirements of the golden fingers of the display cards of different models in a certain size range, reduces the frequency of equipment adjustment or jig replacement for specific products, and improves the universality and utilization rate of equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of automatic gold finger coating machine for graphics cards, specifically relating to an automatic gold finger coating machine for graphics cards and its working method. Background Technology

[0002] The gold fingers of a graphics card are a crucial component for the electrical connection between the graphics card and the motherboard slot. Their surface needs protection during transportation, storage, and assembly, typically by wrapping them with tape to prevent oxidation, scratches, or electrostatic damage. Currently, the tape application for the gold fingers mainly relies on manual operation or semi-automated equipment.

[0003] Manual tape application has obvious drawbacks such as low production efficiency, high labor intensity, and poor consistency. Furthermore, it is difficult to guarantee operational precision. Unstable operation can easily lead to uneven tape application, edge lifting, or air bubbles. In some cases, improper force may even cause physical damage to the delicate gold fingers.

[0004] While existing semi-automatic tape coating equipment has reduced the burden of manpower to some extent, it still generally suffers from the following technical bottlenecks: insufficient positioning accuracy, making it difficult to achieve high-precision, slip-free fixation, especially during the tape coating pressure process, which is prone to slight displacement, affecting the tape coating quality. In addition, it has poor adaptability, cannot be adapted to different models and sizes of graphics cards, and the universal clamps and pressure heads are difficult to adapt well, which can easily lead to uneven local pressure and incomplete tape wrapping.

[0005] Therefore, developing an automatic coating machine for graphics card gold fingers that can achieve precise positioning and adaptive clamping is of great significance for improving production efficiency, ensuring product quality, and reducing labor costs. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic coating machine and working method for graphics card gold fingers, aiming to solve the problems of insufficient positioning accuracy in the prior art, making it difficult to achieve high-precision and slip-free fixation, especially the small displacement that is prone to occur during the coating pressure process, affecting the coating quality. At the same time, the machine has poor adaptability and cannot be adapted to graphics cards of different models and sizes. Furthermore, the universal clamps and pressure heads are difficult to adapt well, which can easily lead to uneven local pressure and incomplete tape wrapping.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An automatic gold finger coating machine for graphics cards, comprising: A processing table is provided, with a conveyor frame and two adhesive paper feeding devices fixedly installed on its upper side. Fixed frames are fixedly installed on both sides of the conveyor frame. A first motor is fixedly installed on one side of one of the fixed frames, with its output end movably passing through one side of the fixed frame. A clamping platform is provided on the inner surface of the conveyor frame, and a rotating shaft movably passes through the inner surface of the clamping platform. A sliding groove and two limiting grooves are provided on the upper side of the clamping platform. Two limiting blocks are slidably installed on the inner surfaces of the two limiting grooves, and two clamping seats are fixedly installed on the upper sides of each of the two limiting blocks. Clamping pads are fixedly installed on the inner surfaces of multiple clamping seats. Two sets of clamping mechanisms are provided on the inner surface of the clamping platform. These two sets of clamping mechanisms clamp and fix the two sides of the gold fingers of the graphics card being transported.

[0008] As a preferred embodiment of the present invention, each clamping mechanism includes a rotating plate fixedly installed on the circumferential surface of the rotating shaft. Two arc-shaped plates are rotatably installed on one side of the rotating plate, and two connecting blocks are rotatably installed on one side of each of the two arc-shaped plates. The upper sides of the two connecting blocks and the lower sides of the two clamping seats are fixedly installed, and the outer surfaces of the two connecting blocks and the inner surfaces of the two sliding grooves are slidably installed.

[0009] In a preferred embodiment of the present invention, a second motor and a mounting frame are fixedly mounted on the inner surface of the processing table. The output end of the second motor movably penetrates the inner surface of the mounting frame. A lead screw is fixedly mounted on the output end of the second motor, and the upper side of the lead screw is rotatably mounted on the inner surface of the mounting frame.

[0010] In a preferred embodiment of the present invention, two first limiting rods are fixedly installed on the inner surface of the processing table. The upper sides of the two first limiting rods penetrate the inner surface of the mounting frame. A nut is threaded onto the circumferential surface of the lead screw, and the nut and the two first limiting rods are slidably installed together.

[0011] As a preferred embodiment of the present invention, connecting seats are fixedly installed on both sides of the clamping platform, one side of the connecting seat and one side of the nut are fixedly installed, and lifting seats are fixedly installed on the upper side of the two connecting seats, and lifting pads are fixedly installed on the upper side of the lifting seats.

[0012] As a preferred embodiment of the present invention, a support frame is fixedly installed on one side of another connecting seat. The inner surface of the support frame is provided with a threaded rod and two second limiting rods. A rotating disk is rotatably installed on the inner surface of the support frame. A threaded sleeve is fixedly installed on the upper side of the rotating disk. A bevel gear is fixedly installed on the upper side of the threaded sleeve and the circumferential surface of the rotating shaft, and the two bevel gears are meshed.

[0013] As a preferred embodiment of the present invention, two mounting seats are fixedly installed on the upper side of the processing table, and a telescopic rod is fixedly installed on the upper side of each of the two mounting seats. One side of each of the two telescopic rods movably passes through one side of the mounting seat and is fixedly installed with a fitting seat.

[0014] As a preferred embodiment of the present invention, it further includes two sets of pressing mechanisms. Each set of pressing mechanisms includes a sliding shell fixedly installed on the lower side of the fitting seat. The inner surface of the sliding shell is provided with a support shell and a support plate. The outer surface of the support shell is sleeved with a spring. The inner surface of the support shell is slidably installed with a support rod. The lower side of the support rod and the upper side of the support plate are fixedly installed. The lower side of the support plate is sequentially fixedly installed with a sliding rod, a fitting block, and a fitting pad.

[0015] In a preferred embodiment of the present invention, a transmission rod and a plurality of rotating rods are movably passed through the inner surface of the conveying frame. The transmission rod and two of the rotating rods are fixedly installed together. Sprockets and conveying rollers are fixedly installed on the circumferential surfaces of the plurality of rotating rods. Two chains are intermittently engaged on the outer surfaces of the plurality of sprockets.

[0016] An automatic adhesive coating method for graphics card gold fingers includes the following steps: S1. Loading and conveying: Start the equipment, prepare the tape with two tape feeding devices, place the graphics card to be coated on the conveyor line consisting of chain and conveyor rollers. Start the first motor, drive the chain to move through the transmission rod, rotating rod and sprocket, so as to smoothly transport the graphics card to the predetermined station above the clamping platform.

[0017] S2, Positioning and Lifting: Once the graphics card is in place, the second motor starts, driving the lead screw to rotate. This causes the nut, which is threaded to it, to move upward along the first limit rod. The nut then pushes the entire clamping platform upward through the connecting seat. The lifting pad on the lifting seat first contacts and lifts the graphics card, causing it to disengage from the conveyor rollers and completing the initial positioning.

[0018] S3. Clamping and fixing: During the upward movement of the clamping platform, the support frame fixed to one side rises synchronously. The threaded rod inside the support frame is displaced relative to the threaded sleeve, driving the rotating disk and the threaded sleeve to rotate. Through a pair of meshing bevel gears, this rotational motion is transmitted to the rotating shaft, causing the rotating plate on it to swing. In turn, through two arc plates, two connecting blocks are pushed to slide towards each other along the sliding groove. The connecting blocks drive the clamping seat and clamping pad above to move, firmly clamping the gold finger part of the graphics card from both sides, completing precise positioning and fixation.

[0019] S4. Overmolding and pressing: After the graphics card is securely clamped, the adhesive tape feeding device pulls the tape and covers the gold fingers. Then, the two sets of pressing mechanisms start working. The telescopic rod extends downward, pushing the bonding seat and the entire pressing assembly below it down. The support rod inside the sliding shell slides down along the support shell, so that the bonding block and bonding pad under the support plate contact the tape. Since the working surfaces of the bonding block and bonding pad are trapezoidal and angled, during the pressing process, this inclined structure can guide the tape to smoothly spread from the middle of the gold fingers to its two sides, effectively expelling air and avoiding the formation of air bubbles. The elastic material of the bonding pad combined with the inclined design can adapt to the steps or wedge-shaped contours that may exist on the gold fingers, ensuring that the tape is evenly pressed and firmly and flatly adhered.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. The graphics card is conveyed to the clamping platform via a conveyor system. A second motor drives a lead screw to rotate, which in turn lifts the clamping platform via a nut and connecting seat. The lifting pad supports and lifts the graphics card, removing it from the conveyor line. As the clamping platform rises, a pair of bevel gears are driven by a threaded rod and threaded sleeve within the support frame, which in turn drives a rotating shaft to rotate. The rotating plate on the rotating shaft drives the clamping seats on both sides to move in opposite directions via an arc plate and connecting block. The clamping pads securely clamp the graphics card's gold fingers from both sides, achieving stable and high-precision automated clamping and positioning. This provides a balanced and stable clamping force from both sides of the gold fingers, effectively preventing minor displacement or shaking of the graphics card during the encapsulation process. This provides a reliable positioning basis for subsequent high-quality encapsulation operations, enhancing the adaptability and versatility of the equipment. It can adapt to the encapsulation needs of different models of graphics cards within a certain size range, reducing the frequency of equipment adjustments or fixture replacements for specific products and improving the equipment's versatility and utilization.

[0021] 2. The first motor on the conveyor line consisting of a chain and conveyor rollers is started, and the chain is driven to move through the transmission rod, rotating rod and sprocket, so as to smoothly transport the graphics card to the predetermined work position above the clamping platform.

[0022] 3. The adhesive tape is pulled and covered above the gold fingers by the adhesive tape feeding device. Then, the telescopic rod is extended downward to push the bonding seat and the entire pressing assembly below it down. The support rod inside the sliding shell slides down along the support shell, so that the bonding block and bonding pad below the support plate contact the adhesive tape. Since the working surfaces of the bonding block and bonding pad are trapezoidal and angled, during the pressing process, this inclined structure can guide the adhesive tape to smoothly spread from the middle of the gold fingers to its two sides, effectively expelling air, avoiding the generation of air bubbles, and ensuring that the adhesive tape is evenly pressed and firmly and flatly bonded. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a first perspective sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of section A in the image; Figure 4 This is a second perspective sectional view of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of section B in the image; Figure 6 This is a third perspective sectional view of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of section C in the image; Figure 8 This is the fourth perspective sectional view of the present invention; Figure 9 For the present invention Figure 8 A magnified view of section D in the image.

[0024] In the diagram: 1. Processing table; 2. Adhesive paper feeding device; 3. Conveying frame; 4. Fixed frame; 5. First motor; 6. Transmission rod; 7. Mounting base; 8. Telescopic rod; 9. Adhesive seat; 10. Sprocket; 11. Chain; 12. Rotating rod; 13. Conveying roller; 14. Mounting frame; 15. Second motor; 16. Lead screw; 17. Nut; 18. First limit rod; 19. Clamping platform; 20. Rotating shaft; 21. Rotating plate; 22. Arc plate; 23. Sliding... 24. Groove; 25. Connecting block; 26. Clamping seat; 27. Clamping pad; 28. Limiting groove; 29. ​​Limiting block; 30. Connecting seat; 31. Lifting seat; 32. Lifting pad; 33. Threaded rod; 34. Support frame; 35. Rotating disk; 36. Threaded sleeve; 37. Bevel gear; 38. Second limiting rod; 39. Sliding shell; 40. Support shell; 41. Support plate; 42. Sliding rod; 43. Adhesive block; 44. Adhesive pad; 45. Spring. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example 1 Please see Figure 1-9 The present invention provides the following technical solutions: An automatic gold finger coating machine for graphics cards, comprising: A processing table 1 is provided. A conveyor frame 3 and two adhesive paper feeding devices 2 are fixedly installed on the upper side of the processing table 1. Fixed frames 4 are fixedly installed on both sides of the conveyor frame 3. A first motor 5 is fixedly installed on one side of one of the fixed frames 4, and its output end movably passes through one side of the fixed frame 4. A clamping platform 19 is provided on the inner surface of the conveyor frame 3. A rotating shaft 20 movably passes through the inner surface of the clamping platform 19. A sliding groove 23 and two limiting grooves 27 are provided on the upper side of the clamping platform 19. Two limiting blocks 28 are slidably installed on the inner surface of the two limiting grooves 27 respectively. Two clamping seats 25 are fixedly installed on the upper side of the two limiting blocks 28. Clamping pads 26 are fixedly installed on the inner surface of the multiple clamping seats 25. Two sets of clamping mechanisms are provided on the inner surface of the clamping platform 19. The two sets of clamping mechanisms clamp and fix the two sides of the gold fingers of the graphics card being transmitted.

[0029] In a specific embodiment of the present invention, the processing table 1 serves as the basic structure and support platform of the entire equipment, used to install and fix all other functional components. The conveying frame 3 constitutes the main frame of the graphics card conveying channel, and a conveying and positioning structure is installed inside. The adhesive tape feeding device 2 is used to store and clamp and convey adhesive tape or adhesive paper material for wrapping gold fingers to the adhesive coating station.

[0030] The fixed frame 4 supports the motor and other components of the drive conveying system. The first motor 5 serves as the power source, driving the transmission rod 6 of the conveying system to rotate, thereby driving the entire conveying chain to move. At the same time, the clamping platform 19 serves as the core workbench, on which a clamping mechanism is set to receive the conveyed graphics card and perform precise positioning and clamping.

[0031] The rotating shaft 20 extends horizontally through the clamping platform 19. Its rotational motion drives the clamping mechanism through the rotating plate 21 on it, achieving clamping and releasing. The sliding groove 23 provides precise sliding trajectory constraints for the movement of the connecting block 24, ensuring the directionality of the clamping movement. At the same time, the limiting groove 27 provides a movement track for the limiting block 28, restricting the degree of freedom of movement of the clamping seat 25 assembly and ensuring that it moves only in a predetermined direction. By embedding the limiting block 28 into the limiting groove 27, the movement trajectory of the clamping seat 25 is strictly limited, increasing clamping stability.

[0032] The fixed clamping base 25 is the component that directly performs the clamping action. It moves relative to or towards each other under the drive of the connecting block 24. At the same time, the clamping pad 26 is made of flexible or scratch-resistant material and directly contacts the non-conductive areas on both sides of the graphics card gold fingers, providing clamping force while preventing scratches on the product.

[0033] The fixed rotating plate 21 rotates together with the rotating shaft 20. Its swing is the driving force for the movement of the two arc plates 22. At the same time, one end of the arc plate 22 is hinged to the rotating plate 21, and the other end is hinged to the connecting block 24. The rotational motion of the rotating plate 21 is converted into the approximately linear motion of the connecting block 24. The connecting block 24 connects the arc plate 22 to the clamping seat 25, and the motion transmitted from the arc plate 22 is directly transmitted to the clamping seat 25, so that it moves along the sliding groove 23, thus completing the function of clamping and fixing the two sides of the graphics card gold fingers.

[0034] This device achieves stable and high-precision automated clamping and positioning, applying balanced and stable clamping force from both sides of the gold fingers. This effectively prevents minor displacement or shaking of the graphics card during the coating process, providing a reliable positioning foundation for subsequent high-quality coating operations. It enhances the adaptability and versatility of the equipment, enabling it to meet the coating needs of different models of graphics cards within a certain size range. This reduces the frequency of equipment adjustments or fixture replacements for specific products, improving the equipment's versatility and utilization. It should be noted that the specific type of adhesive paper feeding device 2 and the first motor 5 used shall be selected by those skilled in the art, and the adhesive paper feeding device 2 and the first motor 5 mentioned above are all existing technologies, which will not be elaborated upon in this solution.

[0035] Please refer to the details. Figure 3A second motor 15 and a mounting frame 14 are fixedly installed on the inner surface of the processing table 1. The output end of the second motor 15 movably passes through the inner surface of the mounting frame 14. A lead screw 16 is fixedly installed on the output end of the second motor 15, and the upper side of the lead screw 16 is rotatably installed on the inner surface of the mounting frame 14.

[0036] In this embodiment: the second motor 15 is used as a power source to drive the lead screw 16 to rotate, providing power for the vertical lifting of the clamping platform 19. At the same time, the mounting frame 14 is used to fix and support the upper end of the second motor 15 and the lead screw 16 of the lifting system. The lead screw 16 converts the rotational motion of the second motor 15 into the linear motion of the nut 17. It should be noted that the specific model of the second motor 15 used can be selected by those skilled in the art, and the above-mentioned second motor 15, etc., are all prior art, and this solution will not elaborate on them.

[0037] Please refer to the details. Figure 3 and Figure 9 Two first limiting rods 18 are fixedly installed on the inner surface of the processing table 1. The upper side of the two first limiting rods 18 penetrates the inner surface of the mounting frame 14. Nuts 17 are threaded on the circumferential surface of the lead screw 16. Nuts 17 and the two first limiting rods 18 are slidably installed between each other.

[0038] In this embodiment: the two first limiting rods 18 provide guidance for the up and down movement of the nut 17, preventing it from rotating with the lead screw 16, ensuring smooth lifting and precise path. At the same time, the nut 17 and the lead screw 16 are threaded together, converting the rotational movement of the lead screw 16 into its own linear up and down movement, and driving the clamping platform 19 to rise and fall through the connecting seat 29.

[0039] Please refer to the details. Figure 3 Both sides of the clamping platform 19 are fixedly installed with connecting seats 29. One side of one connecting seat 29 and one side of nut 17 are fixedly installed. Lifting seats 30 are fixedly installed on the upper side of the two connecting seats 29, and lifting pads 31 are fixedly installed on the upper side of the lifting seats 30.

[0040] In this embodiment: two connecting seats 29 are connected and fixed to the clamping platform 19, and are also connected to the nut 17 and the support frame 33 respectively, so as to transmit the lifting power to the clamping platform 19. The installed lifting seat 30 serves as the mounting base of the lifting pad 31. When the clamping platform 19 rises, the lifting pad 31 contacts and lifts the graphics card from below, so that it is separated from the conveyor roller 13, which facilitates clamping and coating operations.

[0041] Please refer to the details. Figure 3Another connecting seat 29 has a support frame 33 fixedly installed on one side. The inner surface of the support frame 33 is provided with a threaded rod 32 and two second limit rods 37. A rotating disk 34 is rotatably installed on the inner surface of the support frame 33. A threaded sleeve 35 is fixedly installed on the upper side of the rotating disk 34. A bevel gear 36 is fixedly installed on the upper side of the threaded sleeve 35 and the circumferential surface of the rotating shaft 20, and the two bevel gears 36 are meshed.

[0042] In this embodiment: the rotating disk 34, threaded sleeve 35 and other components are supported and fixed by the support frame 33. According to the cooperation between the threaded rod 32 and the threaded sleeve 35, when the support frame 33 slides up and down with the connecting seat 29, the rotating disk 34 drives the threaded sleeve 35 to rotate, and at the same time, the rotating disk 34 rotates on the surface of the support frame 33. According to the two bevel gears 36 meshing at a right angle of 90 degrees, the rotational motion generated by the rotating disk 34 driving the threaded sleeve 35 is used to transmit the rotational force to the rotating shaft 20, thereby driving the clamping mechanism to clamp or release.

[0043] Please refer to the details. Figure 4 Two mounting seats 7 are fixedly installed on the upper side of the processing table 1. Telescopic rods 8 are fixedly installed on the upper side of the two mounting seats 7. One side of each telescopic rod 8 moves through one side of the mounting seat 7 and is fixedly installed with a fitting seat 9.

[0044] In this embodiment: a fixed mounting base 7 is used to install the telescopic rod 8 that drives the pressing mechanism. The telescopic rod 8 drives the entire pressing mechanism and the fitting seat 9 to move vertically up and down. At the same time, the fitting seat 9 connects the telescopic rod 8 and the sliding shell 38, transmitting the power of the telescopic rod 8 to the pressing actuator. It should be noted that the specific type of telescopic rod 8 used can be selected by those skilled in the art, and the above-mentioned telescopic rod 8 and other related technologies are all prior art, which will not be elaborated in this solution.

[0045] Please refer to the details. Figure 5 It also includes two sets of pressing mechanisms. Each pressing mechanism includes a sliding shell 38 fixedly installed on the lower side of the bonding seat 9. The inner surface of the sliding shell 38 is provided with a support shell 39 and a support plate 41. The outer surface of the support shell 39 is fitted with a spring 45. The inner surface of the support shell 39 is slidably installed with a support rod 40. The lower side of the support rod 40 and the upper side of the support plate 41 are fixedly installed. The lower side of the support plate 41 is sequentially fixedly installed with a sliding rod 42, a bonding block 43 and a bonding pad 44.

[0046] In this embodiment: a fixed sliding shell 38 serves as the outer shell and guide component in the pressing mechanism, housing components such as a support shell 39. The support shell 39 provides vertical sliding guidance for the support rod 40. The support rod 40 suspends the support plate 41 and its components, allowing for a certain degree of vertical floating or buffering travel. The support plate 41 is the mounting plate for the pressing actuator. The sliding rod 42 slides inside the sliding shell 38, pushing the internally installed spring 45 under force to cause compression and length contraction. The installed bonding block 43 serves as the mounting base for the bonding pad 44, transmitting pressure to the bonding pad. 44, and the bottom surface of the bonding pad 44 are both designed with a trapezoidal bevel. This shape helps to guide the adhesive paper to gradually unfold and adhere from the middle to both sides of the gold fingers when pressing the adhesive paper, which can effectively reduce air bubble residue and make the edge of the adhesive paper wrap more smoothly and evenly. Since the bonding pad 44 is made of elastic or flexible material, it directly contacts the adhesive paper and the graphics card. During the pressing process, its function is to press the adhesive paper to firmly adhere it to the gold fingers. Its surface is trapezoidal bevel, which cooperates with the bevel surface of the bonding block 43 to better adapt to and wrap the wedge-shaped or stepped cross-sectional contour of the gold fingers. Its elasticity ensures uniform pressure in different angle areas and improves the bonding quality.

[0047] Please refer to the details. Figure 2 The inner surface of the conveying frame 3 is movably connected by a transmission rod 6 and multiple rotating rods 12. The transmission rod 6 and two of the rotating rods 12 are fixedly installed together. Sprockets 10 and conveying rollers 13 are fixedly installed on the circumferential surfaces of the multiple rotating rods 12. Two chains 11 are intermittently meshed on the outer surfaces of the multiple sprockets 10.

[0048] In this embodiment: the transmission rod 6 serves as the drive shaft, receiving power from the first motor 5 and transmitting the rotational motion to two connected rotating rods 12, thereby driving the conveying system. Simultaneously, the two rotating rods 12 serve as driven shafts, rotating under the drive of the transmission rod 6. Multiple sprockets 10 and multiple conveying rollers 13 mounted on them rotate accordingly. Based on the engagement of multiple sprockets 10 with the chain 11, the rotational motion of the rotating rods 12 is converted into the cyclic motion of the chain 11. The multiple conveying rollers 13 directly contact the bottom or side of the graphics card, generating friction based on rotation, thus pushing or carrying the graphics card to move smoothly along the set path.

[0049] The working principle and usage process of this invention are as follows: First, the conveying system delivers the graphics card to the clamping platform 19. The second motor 15 drives the lead screw 16 to rotate, which drives the clamping platform 19 to rise through the nut 17 and connecting seat 29. The lifting pad 31 receives and lifts the graphics card, allowing it to detach from the conveying line. Then, as the clamping platform 19 rises, the threaded rod 32 and threaded sleeve 35 in the support frame 33 drive a pair of bevel gears 36, which in turn drive the rotating shaft 20 to rotate. The rotating plate 21 on the rotating shaft 20 drives the clamping seats 25 on both sides to move towards each other through the arc plate 22 and connecting block 24. The clamping pad 26 securely clamps the gold fingers of the graphics card from both sides. Finally, the adhesive tape feeding device 2 covers the clamped gold fingers with adhesive tape. Subsequently, the telescopic rod 8 drives the pressing mechanism to press down. The bonding pad 44 contacts the adhesive tape with its trapezoidal oblique surface, guiding the adhesive tape to smoothly unfold and press from the middle of the gold fingers to both sides, effectively removing bubbles and ensuring a flat bonding.

Claims

1. An automatic gold finger coating machine for graphics cards, comprising: A processing table (1) is characterized in that a conveying frame (3) and two adhesive paper feeding devices (2) are fixedly installed on the upper side of the processing table (1), and fixed frames (4) are fixedly installed on both sides of the conveying frame (3). A first motor (5) is fixedly installed on one side of one of the fixed frames (4), and its output end movably passes through one side of the fixed frame (4). A clamping platform (19) is provided on the inner surface of the conveying frame (3), and a rotating shaft (20) movably passes through the inner surface of the clamping platform (19). The clamping platform (19) has a sliding groove (23) and two limiting grooves (27) on its upper side. Two limiting blocks (28) are slidably installed on the inner surfaces of the two limiting grooves (27). Two clamping seats (25) are fixedly installed on the upper side of the two limiting blocks (28). Clamping pads (26) are fixedly installed on the inner surfaces of the multiple clamping seats (25). Two sets of clamping mechanisms are provided on the inner surface of the clamping platform (19). The two sets of clamping mechanisms clamp and fix the two sides of the transmitted graphics card gold fingers.

2. The automatic coating machine for graphics card gold fingers according to claim 1, characterized in that: Each clamping mechanism includes a rotating plate (21) fixedly installed on the circumferential surface of the rotating shaft (20). Two arc-shaped plates (22) are rotatably installed on one side of the rotating plate (21). Two connecting blocks (24) are rotatably installed on one side of each of the two arc-shaped plates (22). The upper side of the two connecting blocks (24) and the lower side of the two clamping seats (25) are fixedly installed. The outer surface of the two connecting blocks (24) and the inner surface of the two sliding grooves (23) are slidably installed.

3. The automatic coating machine for graphics card gold fingers according to claim 2, characterized in that: The inner surface of the processing table (1) is fixedly mounted with a second motor (15) and a mounting frame (14). The output end of the second motor (15) moves through the inner surface of the mounting frame (14). The output end of the second motor (15) is fixedly mounted with a lead screw (16), and the upper side of the lead screw (16) is rotatably mounted on the inner surface of the mounting frame (14).

4. The automatic coating machine for graphics card gold fingers according to claim 3, characterized in that: Two first limiting rods (18) are fixedly installed on the inner surface of the processing table (1). The upper sides of the two first limiting rods (18) penetrate the inner surface of the mounting frame (14). Nuts (17) are threaded on the circumferential surface of the lead screw (16). The nuts (17) and the two first limiting rods (18) are slidably installed together.

5. An automatic coating machine for graphics card gold fingers according to claim 4, characterized in that: Both sides of the clamping platform (19) are fixedly installed with connecting seats (29), one side of the connecting seat (29) and one side of the nut (17) are fixedly installed, and the upper side of the two connecting seats (29) is fixedly installed with lifting seats (30), and the upper side of the lifting seats (30) is fixedly installed with lifting pads (31).

6. An automatic coating machine for graphics card gold fingers according to claim 5, characterized in that: Another connecting seat (29) is fixedly installed on one side of a support frame (33). The inner surface of the support frame (33) is provided with a threaded rod (32) and two second limiting rods (37). A rotating disk (34) is rotatably installed on the inner surface of the support frame (33). A threaded sleeve (35) is fixedly installed on the upper side of the rotating disk (34). A bevel gear (36) is fixedly installed on the upper side of the threaded sleeve (35) and on the circumferential surface of the rotating shaft (20), and the two bevel gears (36) are meshed.

7. An automatic coating machine for graphics card gold fingers according to claim 6, characterized in that: Two mounting seats (7) are fixedly installed on the upper side of the processing table (1). Telescopic rods (8) are fixedly installed on the upper side of the two mounting seats (7). One side of each telescopic rod (8) movably passes through one side of the mounting seat (7) and is fixedly installed with a fitting seat (9).

8. An automatic coating machine for graphics card gold fingers according to claim 7, characterized in that: It also includes two sets of pressing mechanisms. Each set of pressing mechanisms includes a sliding shell (38) fixedly installed on the lower side of the fitting seat (9). The inner surface of the sliding shell (38) is provided with a support shell (39) and a support plate (41). The outer surface of the support shell (39) is fitted with a spring (45). The inner surface of the support shell (39) is slidably installed with a support rod (40). The lower side of the support rod (40) and the upper side of the support plate (41) are fixedly installed. The lower side of the support plate (41) is sequentially fixedly installed with a sliding rod (42), a fitting block (43) and a fitting pad (44).

9. An automatic coating machine for graphics card gold fingers according to claim 8, characterized in that: The inner surface of the conveying frame (3) is movably connected by a transmission rod (6) and a plurality of rotating rods (12). The transmission rod (6) and two of the rotating rods (12) are fixedly installed together. The circumferential surfaces of the plurality of rotating rods (12) are all fixedly installed with sprockets (10) and conveying rollers (13). The outer surfaces of the plurality of sprockets (10) are intermittently engaged with two chains (11).

10. An automatic coating method for graphics card gold fingers, applied to the automatic coating machine for graphics card gold fingers as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Loading and conveying: Start the equipment, and the two tape feeding devices (2) prepare the tape. Place the graphics card to be coated on the conveyor line consisting of the chain (11) and the conveyor roller (13). Start the first motor (5) and drive the chain (11) through the transmission rod (6), the rotating rod (12) and the sprocket (10) to move, thereby smoothly conveying the graphics card to the predetermined station above the clamping platform (19). S2, Positioning and Lifting: After the graphics card is in place, the second motor (15) starts and drives the lead screw (16) to rotate, which drives the nut (17) that is threaded to it to move upward along the first limit rod (18). The nut (17) pushes the entire clamping platform (19) up through the connecting seat (29). The lifting pad (31) on the lifting seat (30) first contacts and lifts the graphics card, so that it is separated from the conveying roller (13) and completes the initial positioning. S3. Clamping and fixing: During the lifting process of the clamping platform (19), the support frame (33) fixed on one side of it rises synchronously. The threaded rod (32) in the support frame (33) is displaced relative to the threaded sleeve (35), driving the rotating disk (34) and the threaded sleeve (35) to rotate. Through a pair of meshing bevel gears (36), the rotational motion is transmitted to the rotating shaft (20) to drive the rotating plate (21) on it to swing. Then, through two arc plates (22), the two connecting blocks (24) are pushed to slide towards each other along the sliding groove (23). The connecting blocks (24) drive the clamping seat (25) and clamping pad (26) above to move, and firmly clamp the gold finger part of the graphics card from both sides to complete the precise positioning and fixation. S4. Overmolding and pressing: After the graphics card is firmly clamped, the tape feeding device (2) pulls the tape and covers the gold fingers. Then, the two sets of pressing mechanisms start to work. The telescopic rod (8) extends downward and pushes the bonding seat (9) and the entire pressing assembly below it to descend. The support rod (40) in the sliding shell (38) slides down along the support shell (39) so that the bonding block (43) and bonding pad (44) below the support plate (41) come into contact with the tape. Since the working surfaces of the bonding block (43) and the bonding pad (44) are trapezoidal and angled, the inclined structure can guide the tape to spread smoothly from the middle of the gold fingers to the two sides during the pressing process, effectively expelling air and avoiding the generation of air bubbles. The elastic material of the bonding pad (44) combined with the inclined design can adapt to the steps or wedge-shaped contours that may exist on the gold fingers, ensuring that the tape is evenly pressed and firmly and flatly bonded.

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