A dual column resin alignment mechanism and method of use thereof

Abstract

The application discloses a double-row resin aligning mechanism and a use method thereof, relates to the technical field of integrated circuit advanced packaging equipment, and has the technical scheme as follows: the mechanism comprises symmetrically arranged left resin aligning components and right resin aligning components, the left resin aligning components and the right resin aligning components are of the same structure and alternately perform filling and conveying processes, the mechanism is characterized in that: through symmetrically arranging two groups of resin aligning components of the same structure to alternately rotate and work, one group fills and one group conveys, uninterrupted double-row resin aligning and conveying are realized, and the working efficiency is greatly improved; a double-stroke air cylinder group is configured to realize precise switching of three stations of left loading, right loading and feeding, a detachable double-row resin clamp is matched, double-row resin is compatible and is adapted to different specifications, and a blind area of process adaptation of a traditional device is solved; a lifting linkage cam power-free overturning mechanism is adopted, 90-degree posture conversion is automatically completed by means of lifting movement of the components, no additional power element is needed, and full-automatic precise control is realized by matching a servo motor and a position sensor.

Description

Technical Field

[0001] This invention relates to the field of advanced packaging equipment technology for integrated circuits, and more specifically, to a dual-row resin alignment mechanism. Background Technology

[0002] Epoxy resin, as the core packaging medium for integrated circuit molding, has the characteristics of being solid at room temperature and molten at high temperatures. This necessitates precise delivery to the injection molding station after being aligned and aligned to ensure the stability of the molding process and the yield of chip packaging. As the semiconductor industry continues to iterate towards advanced processes, the requirements for molding efficiency, process adaptability, and automation levels in high-end integrated circuits are increasing exponentially. Traditional resin alignment equipment has shown significant technical shortcomings and is unable to meet the core needs of advanced packaging production lines.

[0003] Existing resin aligning equipment generally adopts a single-row, single-pass conveying architecture, with only a single aligning station. Each operation can only complete the filling of one row of resin, resulting in low efficiency and becoming a key bottleneck restricting the capacity improvement of advanced packaging production lines. Furthermore, the traditional structure is rigid and functionally limited, making it incompatible with the dual-row resin cartridge feeding mode in new semiconductor molding processes. This creates a significant process adaptation blind spot, restricting its applicability and making it difficult to support the process upgrades and iterations of high-end chip packaging. In addition, existing equipment has low automation integration, relying heavily on manual assistance for station switching and posture adjustments. This leads to poor operational consistency and high labor costs, failing to meet the development trend of intelligent, intensive, and high-precision advanced packaging equipment.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a double-row resin alignment mechanism and its usage method. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a double-row resin alignment mechanism and its usage method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-row resin alignment mechanism, applied to integrated circuit molding process, comprising a symmetrically arranged left resin alignment assembly and a right resin alignment assembly, wherein the left resin alignment assembly and the right resin alignment assembly have the same structure and alternately complete the filling and conveying process, and each resin alignment assembly includes a base plate assembly, a resin alignment horizontal transfer assembly, a resin alignment transmission assembly, a resin alignment flipping feeding assembly, and a dual-row resin clamp;

[0007] The resin alignment and horizontal transfer assembly is equipped with a double-stroke cylinder group, which switches between the left loading station, right loading station and feeding station of the double-row resin clamp through the extension and retraction of the cylinders.

[0008] The resin alignment transmission assembly is used to drive the entire resin alignment assembly to move up and down in the vertical direction;

[0009] The resin alignment and flipping feeding assembly is mechanically linked with the lifting and lowering movement of the resin alignment transmission assembly, which drives the double-row resin clamps to automatically change from a horizontal filling posture to a vertical feeding posture, without the need to set up an independent power element to provide flipping power.

[0010] The left resin alignment assembly and the right resin alignment assembly form an alternating rotation operation structure to achieve seamless continuous alignment and conveying of the two rows of resin.

[0011] Preferably, the base plate assembly includes a base plate, an upper fixed plate, a lower fixed plate, a connecting rod, a limiting pin, a resin waste box, and a position sensor; the connecting rod connects the upper fixed plate and the lower fixed plate to form an integral rigid frame; the limiting pin is installed on the upper fixed plate to limit the upward extreme position of the assembly; the resin waste box is arranged between the left and right sets of assemblies to collect waste during the filling process; and the position sensor is installed at the upper and lower ends of the base plate to detect the lifting position of the assembly in real time.

[0012] Preferably, the resin alignment horizontal transfer assembly includes a push plate, guide rods, linear bearings, rollers, a resin clamp mounting plate, roller guide rods, roller mounting blocks, and limiting screws. The double-stroke cylinder group includes a stroke cylinder A and two sets of stroke cylinders B. Stroke cylinder A and the two sets of stroke cylinders B are all mounted on the base plate. The two sets of stroke cylinders B are symmetrically distributed on both sides of stroke cylinder A, and the piston rods of the three cylinders are connected to the same push plate. The guide rods cooperate with the linear bearings to guide and support the horizontal movement of the push plate. The rollers are fixed to the outside of the push plate by the roller mounting blocks. Roller guide rods are fixed on the push plate, guiding and limiting the rollers to prevent them from deviating during operation. The rollers connect the push plate and the spline shaft to achieve power transmission. The resin clamp mounting plate is fixed to the end of the spline shaft for mounting and fixing the double-row resin clamps. Limiting screws are symmetrically provided at both ends of the push plate to limit the horizontal movement limit of the push plate and achieve mechanical overtravel protection.

[0013] Preferably, the resin alignment transmission assembly includes a servo motor, a synchronous toothed belt, a vertical guide rod, a sliding bearing bracket, a bearing, and a motor mounting plate. The servo motor is fixedly mounted on the base plate via the motor mounting plate. The vertical guide rods are symmetrically arranged on both sides of the base plate. The sliding bearing bracket is slidably sleeved on the vertical guide rod via the bearing and is fixedly connected to the synchronous toothed belt. The servo motor drives the sliding bearing bracket and the entire resin alignment assembly to complete the lifting and lowering action along the vertical guide rod via the synchronous toothed belt.

[0014] Preferably, the resin alignment and flipping feeding assembly includes a rotary plate, a spline shaft, a cam, a cam plate, and a guide plate. The spline shaft is horizontally mounted on the base plate, enabling horizontal translation and rotation. The rotary plate is fixedly mounted on the inner end of the spline shaft, and the cam is fixed on the outer side of the rotary plate. The guide plate and the cam plate are fixed on the upper part of the base plate, forming a continuous cam motion trajectory. During the upward movement of the assembly, the cam slides along the guide plate and enters the arc trajectory of the cam plate. Constrained by the trajectory, the rotary plate and the spline shaft rotate synchronously by 90°, completing the conversion of the double-row resin clamp from a horizontal filling posture to a vertical feeding posture.

[0015] Preferably, the left resin aligning assembly and the right resin aligning assembly serve as backups for each other and operate alternately. When the left resin aligning assembly is in the lower filling station for resin filling, the right resin aligning assembly is in the upper conveying station. After the left resin aligning assembly is filled, it is conveyed upwards, and the right resin aligning assembly is simultaneously moved downwards to reset and enters the filling station. The two sets of assemblies operate alternately in a cycle without any gap between operations.

[0016] Preferably, the double-row resin clip has a detachable structure and is fixedly installed on the resin clip mounting plate by fasteners, allowing for quick replacement of clips of different specifications and adaptability to resin clips of different sizes.

[0017] Preferably, the position sensor is a photoelectric sensor that collects the lifting position signal of the component in real time and feeds it back to the control system, which then controls the timing coordination of the double-stroke cylinder group and the servo motor.

[0018] Preferably, the limiting pin is an adjustable high-strength component that can adapt to different stroke conditions; the resin waste box is a detachable open structure that facilitates waste collection, disassembly and cleaning, and daily maintenance.

[0019] The method of using the above-mentioned double-row resin alignment mechanism includes the following steps:

[0020] Step 1: Device initialization;

[0021] The control system starts and completes self-test, and the left and right resin alignment components automatically return to their positions; the double-stroke cylinder group remains in the fully retracted state, and the double-row resin clamps remain at the left loading station, ready for filling operation.

[0022] Step 2: Fill the left column with resin;

[0023] The control system issues a filling command and starts the external resin feeding mechanism to convey epoxy resin from bottom to top; the double-row resin clamps hold each resin piece neatly to complete the filling of the left row of resin; during the filling process, any fallen or defective resin automatically falls into the resin waste box for collection.

[0024] Step 3: Switch to the right loading station;

[0025] After the left column of resin is filled, the control system controls the stroke cylinder A to extend, driving the push plate to move horizontally; the push plate drives the spline shaft to move horizontally through the roller, and the double column of resin clamps are precisely switched to the right loading station;

[0026] Step 4: Resin filling on the right;

[0027] The external feeding mechanism continues to convey epoxy resin from bottom to top. The double-row resin clamps hold each resin in a regular manner, completing the filling of the right row of resin and realizing the synchronous alignment of the double-row resin.

[0028] Step 5: Switch to the loading station;

[0029] After the double-row resin filling is completed, the control system controls the stroke cylinder B to extend and push the push plate to continue moving horizontally; the push plate drives the spline shaft to move horizontally through the roller, and the double-row resin clamp switches to the feeding station;

[0030] Step Six: Upward transport of components;

[0031] The control system triggers the servo motor to operate, which drives the synchronous toothed belt closed-loop transmission, drives the sliding bearing bracket to move upward along the vertical guide rod, and drives the entire resin assembly to rise.

[0032] Step 7: Unpowered tilting;

[0033] During the upward movement of the component, the cam slides into the cam plate track along the guide plate. Constrained by the track, it drives the rotary plate and spline shaft to rotate 90° synchronously. The double-row resin clamp changes from a horizontal filling posture to a vertical feeding posture. The flipping does not require additional power.

[0034] Step 8: Loading and positioning;

[0035] After the component moves to the preset position, the position sensor triggers a signal, the servo motor stops, and the component stops precisely, waiting to be transported to the next process.

[0036] Step Nine: Alternate shift work;

[0037] When the left resin alignment assembly is conveyed upwards, the control system synchronously drives the right resin alignment assembly to descend and reset; when the left assembly completes the conveying, the right assembly accurately returns to the filling station and immediately repeats steps two to eight; the two sets of assemblies alternately cycle and rotate without gaps to realize continuous double-row resin alignment conveying.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. This invention achieves uninterrupted double-row resin conveying by symmetrically arranging two sets of identical resin assembly components that rotate alternately, with one set for filling and the other for conveying, significantly improving operational efficiency. It features a dual-stroke cylinder group for precise switching between left and right loading and feeding positions, and a detachable double-row resin clamp compatible with double-row resin cartridges and adaptable to different specifications, addressing the blind spots in process compatibility of traditional equipment. A lifting-linkage cam-based non-powered flipping mechanism automatically completes a 90° attitude change based on the component's lifting motion, requiring no additional power components. Combined with a servo motor and position sensor, it achieves fully automated and precise control, reducing manual intervention, improving operational consistency, and lowering labor costs. This aligns with the development needs of intelligent, integrated, and high-precision advanced packaging equipment, thus solving the problems in the background technology.

[0040] 2. In this invention, the base plate, upper and lower fixing plates and connecting rods form a rectangular rigid frame, which makes the whole machine strong in resistance to deformation and stable in operation; the adjustable limit pins provide reliable mechanical hard limit to prevent components from overtravel and collision, improve the safety of equipment operation and reduce the risk of accidents;

[0041] 3. The detachable resin clamp and resin waste box in this invention are easy to disassemble, replace and clean, reducing downtime for maintenance; the adjustable limit structure, together with the detachable resin clamp, can be adapted to resin clips of different specifications and sizes, making the equipment highly versatile, applicable to a wider range of working conditions, and reducing equipment modification costs.

[0042] 4. In this invention, horizontal transfer uses a guide rod and linear bearing, while lifting is guided by a servo motor, synchronous toothed belt and vertical guide rod. Roller transmission reduces frictional resistance, making both horizontal and vertical movement smooth and without jamming or deviation. Combined with real-time closed-loop control by photoelectric position sensors, the station switching and lifting / tilting actions are precisely synchronized, ensuring consistency in resin filling and conveying. Attached Figure Description

[0043] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0044] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 This is a schematic diagram of the specific structure of the single resin alignment component in this invention;

[0046] Figure 3 For the present invention Figure 1 Another perspective on the specific structure;

[0047] Figure 4 For the present invention Figure 1 Another angle of the specific structural diagram;

[0048] Figure 5 This is a front view of the single resin alignment assembly in this invention;

[0049] Figure 6 This is a side view of the single resin alignment assembly in this invention;

[0050] Figure 7 This is a top view of the single resin array assembly in this invention.

[0051] In the diagram: 1. Left resin assembly; 2. Right resin assembly; 3. Base plate assembly;

[0052] 31. Base plate; 32. Upper fixing plate; 33. Lower fixing plate; 34. Connecting rod; 35. Limiting pin; 36. Resin waste box; 37. Position sensor; 4. Horizontal transfer assembly; 41. Push plate; 42. Guide rod; 43. Linear bearing; 44. Roller; 45. Resin clamp mounting plate; 46. Roller guide rod; 47. Roller mounting block; 5. Resin alignment transmission assembly; 51. Servo motor; 52. Synchronous toothed belt; 53. Vertical guide rod; 54. Sliding bearing bracket; 55. Bearing; 56. Motor mounting plate; 6. Resin alignment flipping feeding assembly; 61. Rotary plate; 62. Splined shaft; 63. Cam; 64. Cam plate; 65. Guide plate; 7. Double row resin clamp; 8. Double stroke cylinder group; 81. Stroke cylinder A; 82. Stroke cylinder B. Detailed Implementation

[0053] like Figure 1-7 As shown, the present invention provides a double-row resin aligning mechanism, which mainly consists of a left resin aligning assembly 1 and a right resin aligning assembly 2 arranged symmetrically. The two sets of structures are completely identical and alternately complete the filling, lifting, flipping and conveying actions. Each set of components consists of a base plate assembly 3, a resin aligning horizontal transfer assembly 4, a resin aligning transmission assembly 5, a resin aligning flipping and feeding assembly 6 and a double-row resin clamp 7.

[0054] 1. Base plate assembly 3

[0055] The base plate assembly 3 serves as the load-bearing base and installation reference for the entire machine, providing rigid support, installation interfaces, limit protection, waste collection, and position detection functions to ensure the stability of the overall machine structure and reliable operation. The base plate assembly 3 includes a base plate 31, an upper fixing plate 32, a lower fixing plate 33, a connecting rod 34, a limit pin 35, a resin waste box 36, and a position sensor 37.

[0056] Base plate 31: Made of high-strength alloy sheet, it provides an installation reference surface for all components, ensuring the installation accuracy of the equipment and the rigidity of the overall structure.

[0057] Upper fixing plate 32 and lower fixing plate 33 are arranged in parallel to each other, forming the upper and lower support structure of the equipment.

[0058] Connecting rod 34: Multiple high-strength rods are used to connect the upper fixed plate 32 and the lower fixed plate 33 to form a rectangular rigid frame, which improves the overall structure's resistance to deformation and structural stability.

[0059] Limit pin 35: Installed at position 32 on the upper fixed plate, forming a mechanical hard limit structure to limit the upward extreme position of the component and prevent equipment from overtravel and collision. Limit pin 35 is an adjustable high-strength component. The high-strength material can withstand frequent impact loads from the equipment, is not easily deformed or worn, and can maintain a stable mechanical limit function for a long time. At the same time, the limit height can be flexibly adjusted according to different working conditions, different specifications of resin clips, and different stroke requirements, with a wide range of adaptability, convenient debugging and subsequent maintenance, and effectively reducing equipment modification costs.

[0060] Resin waste box 36: Located between the left and right sets of components, it adopts a detachable open-type structure. The open-type design has a large receiving range, which can effectively collect the resin materials that fall or are not qualified during the filling process, keeping the work area clean; the detachable structure allows operators to quickly disassemble and empty the waste and carry out daily cleaning and maintenance, reducing equipment downtime for maintenance.

[0061] Position sensor 37: Installed at the upper and lower ends of the base plate 31, it adopts a photoelectric detection structure, which can detect the lifting position of the component in real time and feed the signal back to the control system to realize station positioning, action timing control and upper and lower limit protection, and ensure the precise and synchronized action of each mechanism.

[0062] 2. Resin alignment horizontal transfer assembly 4

[0063] The resin alignment and horizontal transfer assembly 4 is used to realize the horizontal movement and station switching of the double-row resin clamps 7, and to complete the precise switching between the three stations of left loading, right loading, and material feeding, ensuring that the resin is neatly aligned and the filling is stable. The resin alignment and horizontal transfer assembly 4 includes a push plate 41, a guide rod 42, a linear bearing 43, a roller 44, and a resin clamp mounting plate 45; the double-stroke cylinder assembly 8 includes a stroke cylinder A81 and a stroke cylinder B82, both of which are fixed to the base plate 31, and the cylinder piston rods are connected to the same push plate 41.

[0064] Two stroke cylinders B82 are set up and symmetrically arranged on both sides of stroke cylinder A81. During operation, the two cylinders output force synchronously, effectively balancing the horizontal force on push plate 41, completely avoiding the problem of force deviation and jamming on one side, and greatly improving the accuracy of station switching and the stability of operation.

[0065] Push plate 41: This is a horizontally mounted plate structure that serves as the force-bearing carrier at the cylinder output end, driving the overall horizontal conveying mechanism to move synchronously. Limit screws are symmetrically mounted on both ends of push plate 41, which can match the equipment installation reference to achieve the horizontal movement limit, prevent the push plate from overtravel, and play a role in mechanical protection and precise limiting.

[0066] Guide rod 42 and linear bearing 43: The guide rod 42 passes through the interior of the linear bearing 43, and the bottom plate 31 and the push plate 41 are fixed at both ends respectively. The guide rod 42 guides and limits the horizontal movement of the push plate 41, ensuring that the movement process is smooth without jamming or deviation, and improving the positioning accuracy of the work station.

[0067] Roller 44: It is installed on the outside of the push plate 41 via roller mounting block 47. Roller guide rod 46 is fixed on the push plate 41. Roller guide rod 46 guides and limits the roller 44, ensuring that the roller 44 runs smoothly and does not deviate. The roller 44 is engaged with the annular groove at the end of the spline shaft 62, which converts the horizontal displacement of the push plate 41 into the horizontal translation of the spline shaft 62, realizing the power transmission of the mechanism.

[0068] Resin clamp mounting plate 45: Fixedly mounted on the outer end of spline shaft 62, used to support and mount double-row resin clamps 7.

[0069] Station switching logic: When the double-stroke cylinder group 8 is fully retracted, the double-row resin clamp 7 is in the left loading station and completes the filling of the left column of resin; when the stroke cylinder A81 extends alone, it switches to the right loading station and completes the filling of the right column of resin; when the stroke cylinder B82 extends alone, it switches to the feeding station and waits for the upward conveying operation.

[0070] 3. Resin alignment and transmission assembly 5

[0071] The resin alignment transmission assembly 5 is the vertical lifting power unit of the equipment, used to drive the entire resin alignment assembly to rise and fall smoothly, providing power support for material conveying and tilting movements. The resin alignment transmission assembly 5 includes a servo motor 51, a synchronous toothed belt 52, a vertical guide rod 53, a sliding bearing bracket 54, and a bearing 55.

[0072] Servo Motor 5: A high-precision servo motor is adopted and is fixedly installed on the base plate 31 at the preset installation position through the motor mounting plate 56. The installation and positioning are accurate and the structure is stable. It can withstand the vibration of equipment operation for a long time and is not easy to loosen. It provides controllable, adjustable speed and high-precision rotational power output for the equipment.

[0073] Synchronous toothed belt 52: It adopts a closed-loop transmission structure, connecting the output end of servo motor 51 and sliding bearing bracket 54, ensuring stable transmission without slippage and high positioning accuracy.

[0074] Vertical guide rod 53: Two parallel vertical rods are set and fixed on both sides of the base plate 31 to serve as guide references for the lifting and lowering of the component.

[0075] Sliding bearing bracket 54: It is slidably sleeved on the vertical guide rod 53 via bearing 55 and fixedly connected to the synchronous toothed belt 52. It can move up and down synchronously with the synchronous toothed belt 52, thereby driving the entire resin assembly to rise and fall smoothly.

[0076] Component operation mode: The servo motor 51 drives the synchronous toothed belt 52 in closed-loop transmission, which in turn drives the sliding bearing bracket 54 to move vertically up and down along the vertical guide rod 53, ultimately achieving the precise lifting and lowering action of the entire resin array component.

[0077] 4. Resin alignment and flipping feeding assembly 6

[0078] The resin alignment and flipping feeding assembly 6 is a lifting-linkage type non-powered flipping mechanism. It relies on the lifting motion of the assembly itself to achieve mechanical linkage and automatically complete the 90° tilting of the resin clamp without the need for additional motors, cylinders or other independent power components. The resin alignment and flipping feeding assembly 6 includes a rotary plate 61, a splined shaft 62, a cam 63, a cam plate 64, and a guide plate 65.

[0079] Spline shaft 62: It is horizontally mounted on the base plate 31 and can realize horizontal translation and rotational movement, serving as the central shaft for the resin clamp to flip its posture.

[0080] Rotary plate 61: It is fixedly installed at the inner end of the spline shaft 62 and can rotate synchronously with the spline shaft 62.

[0081] Cam 63: Fixed to the outside of rotary plate 61, and moves synchronously with rotary plate 61.

[0082] Guide plate 65 and cam plate 64 are both fixed to the upper part of the base plate 31. The two are spliced ​​together to form a continuous cam motion trajectory, in which guide plate 65 is a straight trajectory segment and cam plate 64 is a circular trajectory segment.

[0083] The flipping principle is as follows: During the upward and downward movement of the component, the cam 63 moves upward along the guide plate 65 in a straight line and then slides into the arc trajectory of the cam plate 64. Constrained by the trajectory, the rotary plate 61 is driven to rotate. The rotary plate 61 drives the spline shaft 62 to rotate synchronously by 90°, so that the double-row resin clamp 7 automatically changes from a horizontal filling posture to a vertical feeding posture. When the component moves downward and resets, each structure resets in reverse linkage to complete the posture restoration. The entire process relies on the lifting power to achieve unpowered flipping, which is simple in structure and reliable in operation.

[0084] 5. Double-row resin clip 7

[0085] The double-row resin clamp 7 is a resin-bearing and organizing component, used to neatly arrange and clamp double rows of cylindrical epoxy resin, ensuring orderly resin arrangement and stable conveying. The double-row resin clamp 7 features a detachable clamp structure made of high-strength, wear-resistant material, adaptable to the shape of cylindrical epoxy resin. The clamp body is fixed to the resin clamp mounting plate 45 with fasteners, allowing for easy assembly and disassembly. Different clamp body specifications can be quickly replaced, accommodating double-row resin clips of different sizes and arrangements, making the equipment highly versatile.

[0086] The present invention also provides a method for using the above-mentioned double-row resin alignment mechanism:

[0087] Step 1: Device initialization;

[0088] The control system starts and completes self-test. The left resin alignment assembly 1 and the right resin alignment assembly 2 automatically return to their positions. The double-stroke cylinder group 8 remains in the fully retracted state, and the double-row resin clamp 7 stays at the left loading station, ready for the filling operation.

[0089] Step 2: Fill the left column with resin;

[0090] The control system issues a filling command and starts the external resin feeding mechanism to convey epoxy resin from bottom to top; the double-row resin clamps 7 clamp each resin piece neatly to complete the filling of the left row of resin; during the filling process, any fallen or unqualified resin automatically falls into the resin waste box 36 for collection.

[0091] Step 3: Switch to the right loading station;

[0092] After the left column of resin is filled, the control system controls the stroke cylinder A81 to extend, driving the push plate 41 to move horizontally; the push plate 41 drives the spline shaft 62 to move horizontally through the roller 44, and the double column resin clamp 7 is precisely switched to the right loading station.

[0093] Step 4: Resin filling on the right;

[0094] The external feeding mechanism continues to convey epoxy resin from bottom to top. The double-row resin clamps 7 hold each resin in a regular manner, completing the filling of the right row of resin and realizing the synchronous alignment of the double-row resin.

[0095] Step 5: Switch to the loading station;

[0096] After the double-row resin is filled, the control system controls the stroke cylinder B82 to extend and push the push plate 41 to continue to move horizontally; the push plate 41 drives the spline shaft 62 to move horizontally through the roller 44, and the double-row resin clamp 7 switches to the loading station.

[0097] Step Six: Upward transport of components;

[0098] The control system triggers the servo motor 51 to run, which drives the synchronous toothed belt 52 in closed-loop transmission, drives the sliding bearing bracket 54 to move upward along the vertical guide rod 53, and drives the entire resin assembly to rise.

[0099] Step 7: Unpowered tilting;

[0100] During the upward movement of the component, the cam 63 slides into the trajectory of the cam plate 64 along the guide plate 65. Constrained by the trajectory, the rotary plate 61 and the spline shaft 62 rotate synchronously by 90°. The double-row resin clamp 7 changes from a horizontal filling posture to a vertical feeding posture. The flipping does not require additional power.

[0101] Step 8: Loading and positioning;

[0102] After the component moves to the preset position, the position sensor 37 triggers a signal, the servo motor 51 stops, the component stops precisely, and waits to be transported to the next process.

[0103] Step Nine: Alternate shift work;

[0104] When the left resin alignment assembly 1 is conveyed upwards, the control system synchronously drives the right resin alignment assembly 2 to descend and reset; when the left assembly completes the conveying, the right assembly accurately returns to the filling station and immediately repeats steps two to eight; the two sets of assemblies alternately cycle and rotate without gaps to realize the continuous alignment and conveying of double-row resin.

[0105] The present invention provides a double-row resin alignment mechanism and its method of use, which has the following advantages:

[0106] By symmetrically setting two sets of identical resin assembly modules that rotate alternately, one set is filled and the other is conveyed, achieving uninterrupted conveying of double-row resin and significantly improving work efficiency; a dual-stroke cylinder group 8 is configured to achieve precise switching between left and right loading and feeding three stations, and is equipped with a detachable double-row resin clamp 7, which is compatible with double-row resin cartridges and adapts to different specifications, solving the blind spots of traditional equipment process adaptation; a lifting linkage cam non-powered flipping mechanism is adopted, which automatically completes 90° posture conversion by relying on the lifting motion of the components, without the need for additional power components, and with the help of servo motor 51 and position sensor 37, fully automated precise control is achieved, reducing manual intervention, improving work consistency, and reducing labor costs, which meets the development needs of intelligent, intensive, and high-precision advanced packaging equipment and solves the problems in the background technology;

[0107] The base plate 31, upper fixing plate 32, lower fixing plate 33 and connecting rod 34 form a rectangular rigid frame, which has strong resistance to deformation and stable operation. The adjustable limit pin 35 provides reliable mechanical hard limit to prevent components from overtravel and collision, improve the safety of equipment operation and reduce accident risks.

[0108] The detachable double-row resin clip 7 and resin waste box 36 are easy to disassemble, replace, and clean, reducing downtime for maintenance. The adjustable limit structure limit pin 35, in conjunction with the detachable resin clip, can be adapted to resin clips of different specifications and sizes, making the equipment highly versatile, applicable to a wider range of working conditions, and reducing equipment modification costs.

[0109] The horizontal transfer uses a guide rod 42 and a linear bearing 43 for cooperation. The lifting is guided by a servo motor 51, a synchronous toothed belt 52 and a vertical guide rod 53. The roller 44 transmission reduces frictional resistance, making the horizontal and vertical movements smooth and without jamming or deviation. With the help of a photoelectric position sensor 37 for real-time closed-loop control, the station switching and lifting and flipping actions are precisely synchronized, ensuring the consistency of resin filling and conveying.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A dual-row resin alignment mechanism, applied in integrated circuit molding process, characterized in that, It includes a left resin alignment assembly (1) and a right resin alignment assembly (2) arranged symmetrically. The left resin alignment assembly (1) and the right resin alignment assembly (2) have the same structure and alternately complete the filling and conveying process. Each resin alignment assembly includes a base plate assembly (3), a resin alignment horizontal transfer assembly (4), a resin alignment transmission assembly (5), a resin alignment flipping and feeding assembly (6), and a double-row resin clamp (7). The resin alignment horizontal transfer assembly (4) is equipped with a double-stroke cylinder group (8), which switches the left loading station, right loading station and feeding station of the double-row resin clamp (7) through the cylinder extension and retraction action; The resin alignment transmission assembly (5) is used to drive the entire resin alignment assembly to move up and down in the vertical direction; The resin alignment and flipping feeding assembly (6) is mechanically linked with the lifting and lowering movement of the resin alignment transmission assembly (5), which drives the double-row resin clamp (7) to automatically change from a horizontal filling posture to a vertical feeding posture, without the need to set up an independent power element to provide flipping power. The left resin alignment assembly (1) and the right resin alignment assembly (2) form an alternating rotation operation structure to realize seamless continuous alignment and conveying of double-row resin.

2. The double-row resin alignment mechanism according to claim 1, characterized in that: The base plate assembly (3) includes a base plate (31), an upper fixing plate (32), a lower fixing plate (33), a connecting rod (34), a limiting pin (35), a resin waste box (36), and a position sensor (37). The connecting rod (34) connects the upper fixing plate (32) and the lower fixing plate (33) to form an integral rigid frame. The limiting pin (35) is installed on the upper fixing plate (32) to limit the upper limit position of the assembly. The resin waste box (36) is arranged between the left and right sets of assemblies to collect waste during the filling process. The position sensor (37) is installed at the upper and lower ends of the base plate (31) to detect the lifting position of the assembly in real time.

3. The double-row resin alignment mechanism according to claim 1, characterized in that: The resin alignment horizontal transfer assembly (4) includes a push plate (41), a guide rod (42), a linear bearing (43), a roller (44), a resin clamp mounting plate (45), a roller guide rod (46), a roller mounting block (47), and a limiting screw; the double-stroke cylinder group (8) includes a stroke cylinder A (81) and two sets of stroke cylinders B (82). The stroke cylinder A (81) and the two sets of stroke cylinders B (82) are all mounted on the base plate (31). The two sets of stroke cylinders B (82) are symmetrically distributed on both sides of the stroke cylinder A (81), and the piston rods of the three cylinders are connected to the same push plate (41). The guide rod (42) and the linear bearing (43) are connected to each other. The rollers (44) are fixed to the outside of the push plate (41) by roller mounting blocks (47). Roller guide rods (46) are fixed on the push plate (41). The roller guide rods (46) guide and limit the rollers (44) to prevent the rollers from deviating during operation. The rollers (44) connect the push plate (41) and the spline shaft (62) to realize power transmission. The resin clamp mounting plate (45) is fixed to the end of the spline shaft (62) and is used to install and fix the double-row resin clamps (7). The push plate (41) is symmetrically provided with limit screws at both ends to limit the horizontal movement limit position of the push plate and realize mechanical overtravel protection.

4. The double-row resin alignment mechanism according to claim 1, characterized in that: The resin alignment transmission assembly (5) includes a servo motor (51), a synchronous toothed belt (52), a vertical guide rod (53), a sliding bearing bracket (54), a bearing (55), and a motor mounting plate (56). The servo motor (51) is fixedly installed on the base plate (31) through the motor mounting plate (56). The vertical guide rod (53) is symmetrically arranged on both sides of the base plate (31). The sliding bearing bracket (54) is slidably sleeved on the vertical guide rod (53) through the bearing (55) and is fixedly connected to the synchronous toothed belt (52). The servo motor (51) is driven by the synchronous toothed belt (52) to drive the sliding bearing bracket (54) and the entire resin alignment assembly to complete the lifting and lowering action along the vertical guide rod (53).

5. The double-row resin alignment mechanism according to claim 1, characterized in that: The resin column flipping feeding assembly (6) includes a rotary plate (61), a spline shaft (62), a cam (63), a cam plate (64), and a guide plate (65). The spline shaft (62) is horizontally mounted on the base plate (31) and can realize horizontal translation and self-rotation. The rotary plate (61) is fixedly mounted on the inner end of the spline shaft (62). The cam (63) is fixed on the outer side of the rotary plate (61). The guide plate (65) and the cam plate (64) are fixed on the upper part of the base plate (31) and together form a continuous cam motion trajectory. During the upward movement of the assembly, the cam (63) slides along the guide plate (65) and enters the arc trajectory of the cam plate (64). Under the constraint of the trajectory, the rotary plate (61) and the spline shaft (62) rotate synchronously by 90°, completing the conversion of the double-row resin clamp (7) from a horizontal filling posture to a vertical feeding posture.

6. The double-row resin alignment mechanism according to claim 1, characterized in that: The left resin alignment assembly (1) and the right resin alignment assembly (2) serve as backups for each other and operate alternately. When the left resin alignment assembly (1) is located at the lower filling station for resin filling, the right resin alignment assembly (2) is located at the upper conveying station. After the left resin alignment assembly (1) is filled, it is conveyed upwards. The right resin alignment assembly (2) is synchronously moved downwards to reset and enters the filling station. The two sets of assemblies operate alternately in a cycle without any gap between operations.

7. The double-row resin alignment mechanism according to claim 1, characterized in that: The double-row resin clip (7) is a detachable structure and is fixedly installed on the resin clip mounting plate (45) by fasteners. Different specifications of clips can be quickly replaced to adapt to different sizes of resin clips.

8. The double-row resin alignment mechanism according to claim 2, characterized in that: The position sensor (37) is a photoelectric sensor that collects the lifting position signal of the component in real time and feeds it back to the control system. The control system then controls the timing coordination of the double-stroke cylinder group (8) and the servo motor (51).

9. A double-row resin alignment mechanism according to claim 2, characterized in that: The limiting pin (35) is an adjustable high-strength component that can be adapted to different stroke conditions; the resin waste box (36) is a detachable open structure that facilitates waste collection, disassembly and cleaning and daily maintenance.

10. A method of using the double-row resin alignment mechanism according to any one of claims 1-9, characterized in that: The steps include the following: Step 1: Device initialization; The control system starts and completes self-test. The left resin alignment assembly (1) and the right resin alignment assembly (2) automatically return to their positions. The double-stroke cylinder group (8) remains in a fully retracted state, and the double-row resin clamp (7) stays at the left loading station, ready for loading operation. Step 2: Fill the left column with resin; The control system issues a filling command and starts the external resin feeding mechanism to transport epoxy resin from bottom to top; the double-row resin clamps (7) clamp the epoxy resin one by one to complete the filling of the left column of resin; during the filling process, the fallen and unqualified resins automatically fall into the resin waste box (36) for collection. Step 3: Switch to the right loading station; After the left column of resin is filled, the control system controls the stroke cylinder A (81) to extend, driving the push plate (41) to move horizontally; the push plate (41) drives the spline shaft (62) to move horizontally through the roller (44), so that the double column resin clamp (7) is precisely switched to the right loading station. Step 4: Resin filling on the right; The external feeding mechanism continues to convey epoxy resin from bottom to top. The double-row resin clamps (7) hold the epoxy resin one by one in a regular manner, and complete the filling of the right row of resin to achieve synchronous alignment of the double-row resin. Step 5: Switch to the loading station; After the double-row resin is filled, the control system controls the stroke cylinder B (82) to extend and push the push plate (41) to continue to move horizontally; the push plate (41) drives the spline shaft (62) to move horizontally through the roller (44), so that the double-row resin clamp (7) switches to the loading station; Step Six: Upward transport of components; The control system triggers the servo motor (51) to run, which drives the synchronous toothed belt (52) to drive the sliding bearing bracket (54) to move upward along the vertical guide rod (53), thereby driving the entire resin assembly to rise. Step 7: Unpowered tilting; During the upward movement of the component, the cam (63) slides into the trajectory of the cam plate (64) along the guide plate (65), and the rotating plate (61) and spline shaft (62) rotate synchronously by 90° due to the constraint of the trajectory. The double-row resin clamp (7) changes from a horizontal filling posture to a vertical feeding posture. No additional power is required for the flipping process. Step 8: Loading and positioning; After the component moves up to the preset position, the position sensor (37) triggers a detection signal, the servo motor (51) stops running, the component stops precisely, and waits to be transported to the next process; Step Nine: Alternate shift work; When the left resin alignment assembly (1) is conveyed upward, the control system synchronously drives the right resin alignment assembly (2) to move downward and reset; when the left assembly completes the conveying, the right assembly accurately returns to the filling station and repeats steps two to eight; the two sets of assemblies alternately cycle and rotate without gaps to realize the continuous alignment and conveying of double-row resin.

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