Resin double-row feeding equipment and process

Abstract

The application provides a resin double-column feeding equipment and process, which is suitable for a double-injection system in chip plastic packaging. When in use, resin material is loaded into a storage bin, and three groups of vibrators are sequentially used to preliminarily arrange the resin material into two columns. After length and weight detection, qualified resin is arranged into two columns at a specified interval, and unqualified resin is automatically discarded. Finally, the resin is loaded into a resin clip and sent into a material taking manipulator. Compared with a traditional single-column resin feeding plastic packaging mode, the application can simultaneously feed resin in double columns, the work efficiency is doubled, and the cost of space and personnel is reduced by half. Meanwhile, through a symmetrical design of a jacking structure, the demand for continuous jacking feeding of two columns of resin can be met. The application can realize stable feeding of double-column resin and greatly improve the resin feeding efficiency.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a resin double-row feeding device and process. Background Technology

[0002] Chip packaging is an important step in the integrated circuit manufacturing process. Chip packaging refers to placing the chip on a metal sheet, usually using epoxy resin as the packaging material. In its normal state, it is a black cylindrical solid, but when heated to the packaging temperature, it becomes liquid. Under the action of injection pressure, it flows into the mold channel and covers the chip. After the resin cools and solidifies, a plastic layer is formed on the chip surface, protecting the chip from damage.

[0003] Currently, the mainstream chip packaging process uses single injection molding, and the matching resin feeding system can only provide single-row resin feeding. With the development of new technologies, dual injection molding technology has begun to emerge in the chip packaging field. Theoretically, dual injection molding technology can double the production efficiency and save a lot of labor and space costs. However, the existing single-row resin feeding system can no longer meet the needs of dual injection molding technology in terms of efficiency. That is, the resin feeding system has become one of the important factors affecting the development of dual injection molding technology. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a resin dual-row feeding device and process, which enables stable feeding of resin in dual rows, greatly improving the resin feeding efficiency.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: A resin double-row feeding device includes a vibration mechanism, a feeding component, a discharging component, and a discharge component installed between the feeding component and the discharging component, which arranges the resin into two spaced rows. The aligning mechanism includes an aligning assembly, which includes a left resin tray and a right resin tray spaced apart. The surfaces of the left and right resin trays have multiple first lifting openings along their length. Each first lifting opening has a through notch on its inner side and a first stop pin is installed on its outer side. The mechanism also includes a conveying assembly, which sequentially conveys the resin from the surface of the discharge assembly to the surface of the first lifting opening. The lifting mechanism includes a support assembly, and a lifting assembly and a driven assembly are slidably connected to the side wall of the support assembly. The driven assembly includes two rows of trays C, each containing multiple clip holes. The lifting assembly includes two rows of corresponding ejector pins. The two rows of ejector pins pass through the bottom and through the notch to lift the resin on the surface of the first lifting opening into the clip holes of the tray C to complete the feeding of the two rows of resin.

[0006] Preferably, the discharge assembly includes a disc track and a circular vibrator installed at the lower end of the disc track; the feeding assembly includes a feeding channel and an inclined vibrator installed at the bottom; the discharge assembly includes a linear track and a linear vibrator installed at the bottom of the linear track.

[0007] Preferably, the alignment assembly further includes a timing belt C and a translation motor for controlling the directional movement of the timing belt C. The left resin pallet and the right resin pallet are fixedly connected to the timing belt C through a connecting plate. After one transport operation of the transport assembly is completed, the left resin pallet and the right resin pallet are controlled by the timing belt C to move a unit distance in a predetermined direction.

[0008] Preferably, the first lifting opening and the ejector pin have circular cross-sections, the cross-sectional size of the first lifting opening is larger than the cross-sectional size of the ejector pin, and four first stop pins are provided. The four first stop pins are arranged circumferentially around the outer side of the first lifting opening, and the four first stop pins are symmetrically distributed on the left and right sides of the opening.

[0009] Preferably, the alignment mechanism further includes a length detection component installed at the end of the discharge assembly. The length detection component includes a pressing cylinder and a sensor A. The pressing cylinder extends to press down the resin, and the sensor A detects the length of the resin.

[0010] Preferably, the alignment mechanism further includes a weighing component installed between the length detection component and the alignment component. The weighing component includes a weighing tray and a weighing sensor, and the weight of the resin is detected by the weighing sensor.

[0011] Preferably, the conveying assembly includes four sets of spaced-apart left and right grippers, and also includes a clamping cylinder for controlling the clamping of the left and right grippers, and an electric cylinder module for controlling the synchronous linear movement of the four sets of left and right grippers.

[0012] Preferably, an elastic component is provided between the lifting component and the driven component. The elastic component includes a spring A that provides preload. A limit component is installed on the top of the driven component. After the driven component stops moving, the lifting component continues to move a predetermined distance toward the driven component to lift and feed the resin through the ejector pin.

[0013] Preferably, the driven component includes a U-shaped support plate C, the surface of which has a plurality of second lifting openings, the number and position of which are adapted to the first lifting openings.

[0014] A resin double-row feeding process includes the following steps: S1, arranging the resin into two spaced rows by a vibration mechanism; S2, sequentially transporting the resin on the surface of the discharge assembly to the surface of the first lifting opening by a transport assembly; S3, controlling the two rows of ejector pins to pass through the notch from the bottom and lift the resin on the surface of the first lifting opening into the clip hole of the tray C to complete the feeding of the two rows of resin.

[0015] The beneficial effects of this invention are as follows: This invention is applicable to dual-injection molding systems in chip encapsulation. During use, resin material is loaded into a storage hopper. Three sets of vibrators act sequentially to initially arrange the resin material into two rows. Qualified resin is then arranged into two rows at specified intervals and finally loaded into resin cartridges and fed into a robotic arm. Compared to traditional single-row resin loading encapsulation methods, this invention can simultaneously load two rows of resin, doubling work efficiency and halving site and personnel costs. Furthermore, the symmetrically designed lifting structure can meet the requirement of continuous lifting and loading of two rows of resin, further improving resin loading efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the resin feeding system in this invention.

[0017] Figure 2 This is a schematic diagram of the vibration mechanism in this invention.

[0018] Figure 3 This is a schematic diagram of the feeding assembly in this invention.

[0019] Figure 4 This is a schematic diagram of the material discharge assembly and the material output assembly in this invention.

[0020] Figure 5 This is a schematic diagram of the alignment mechanism in this invention.

[0021] Figure 6 This is a schematic diagram of the length detection component in this invention.

[0022] Figure 7 This is a schematic diagram of the transport component in this invention.

[0023] Figure 8 This is a schematic diagram of the weighing component in this invention.

[0024] Figure 9 This is a schematic diagram of the array components in this invention.

[0025] Figure 10 This is a partially enlarged schematic diagram of the array components in this invention.

[0026] Figure 11 This is a schematic diagram of the lifting mechanism in this invention.

[0027] Figure 12 This is a schematic diagram of the support component in this invention.

[0028] Figure 13 This is a schematic diagram of the lifting component in this invention.

[0029] Figure 14 For the present invention Figure 13 A magnified schematic diagram of the central part of the structure.

[0030] Figure 15 This is a schematic diagram of the lifting component structure of the present invention.

[0031] Figure 16 This is a schematic diagram of the driven component in this invention.

[0032] Figure 17 This is a schematic diagram of the lifting component and the driven component in the separated state in this invention.

[0033] Figure 18 This is a schematic diagram of the cross-state of the lifting component and the driven component in this invention.

[0034] In the picture: 1. Vibration mechanism; 11. Feeding assembly; 111. Storage silo; 112. Feeding channel; 113. Inclined vibrator; 12. Discharge assembly; 121. Disc track; 122. Circular vibrator; 123. Chassis support; 13. Discharge assembly; 131. Linear track; 132. Vertical vibrator; 2. Train alignment mechanism; 21. Length detection component; 210. Length detection bracket; 2101. Length detection block; 2102. Adjustment block A; 2103. Adjustment block B; 2104. Sensor mounting block C; 2105. Sensor mounting block D; 211. Sensor A; 212. Position detection bracket; 2121. Adjusting base plate; 2122. Fixed support plate; 2123. Fixed plate; 2124. Inclined baffle; 2125. Adjustment block C; 2126. Sensor mounting block A; 2127. Sensor mounting block B; 2128. Push plate; 2129. Push plate shaft; 2130. Push plate fixing block; 2131. Connecting plate H; 2132. Pad block; 2133. Adjustment plate E; 2134. Tilting cylinder; 213. Sensor B; 214. Fixed support plate; 215. Pressing cylinder; 216. Scrap box; 25. Base; 22. Handling components; 2201. Electric cylinder support plate A; 2202. Electric cylinder support plate B; 2203. Electric cylinder mounting plate; 2204. Electric cylinder module; 2205. Cable chain; 2206. Cable chain mounting plate; 2207. Cylinder connecting plate A; 2208. Cylinder connecting plate B; 2209. Lifting cylinder; 2210. Pneumatic gripper connecting plate A; 2211. Pneumatic gripper connecting plate B; 2212. Base plate mounting plate; 2213. Clamping cylinder; 2214. Left gripper; 2215. Right gripper; 23. Weighing assembly; 2301. Adjusting plate D; 2302. Support plate D; 2303. Base plate D; 2304. Sensor pad; 2305. Sensor mounting base; 2306. Weighing sensor; 2307. Weighing pallet; 2308. Lifting plate; 2309. Lifting stop pin; 2310. Lifting pin; 2311. Lifting cylinder; 216. Waste box; 24. Alignment assembly; 2401. Left resin support plate; 2402. Right resin support plate; 2403. First stop pin; 2404. Connecting plate E; 2405. Irregular block; 2406. Guide rail slider; 2407. Synchronous belt C; 2408. Pulley C; 2409. Motor mounting base; 2410. Translation motor; 2411. Right alignment base plate; 2412. Left alignment base plate; 2413. Support base plate; 2414. Connecting plate F; 2415. Connecting plate G; 2416. Sensor support plate; 2417. Dust collection plate; 3. Lifting mechanism; 31. Support assembly; 3101. Lifting base plate; 3102. Left side plate; 3103. Right side plate; 3104. Upper side plate; 3105. Lower side plate; 3106. Guide rail; 3107. Lifting positioning block A; 3108. Lifting positioning block B; 3109. Lifting bracket A; 3110. Lifting bracket B; 3111. Positioning plate; 3112. Material picking positioning block; 32. Lifting assembly; 3201. Lifting motor; 3202. Reducer; 3203. Motor mounting plate; 3204. Pulley A; 3205. Synchronous belt A; 3206. Pulley shaft; 3207. Bearing; 3208. Bearing support plate A; 3209. Bearing support plate B; 3210. Synchronous belt B; 3211. Pulley B; 3212. Gear plate; 3213. Slider A; 3214. Slider Connecting plate A; 3215, Adapter block A; 3216, Positioning pin; 3217, Equalizing bolt A; 3218, Rotating block; 3219, Guide wheel A; 3220, Guide wheel B; 3221, Pressure block; 3222, Guide block; 3223, Guide shaft; 3224, Spring A; 3225, Pallet support block A; 3226, Pallet support block B; 3227, Ejector pin mounting plate; 3228, Ejector pin; 33. Driven assembly; 3301. Slider B; 3302. Slider connecting plate B; 3303. Adapter block B; 3304. Pallet support block C; 3305. Pallet C; 3306. Second stop pin; 3307. Roller guide block; 3308. Tie rod; 3309. Equal height bolt B; 3310. Spring B; 3311. Limiter A; 3312. Limiter B; 4. Feeding frame. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] See attached document Figure 1 -Appendix Figure 18 A resin double-row feeding device includes a resin vibration mechanism 1, a resin alignment module 2, a resin lifting module 3, and a feeding frame 4. The resin vibration module includes the resin vibration mechanism 1, which includes a feeding component 11, a discharging component 12, and a discharge component 13. The feeding component includes a storage bin 111, two feeding channels 112, and two inclined vibrators 113. The discharging component includes two circular tracks 121, two circular vibrators 122, and a chassis support 123. The discharge component includes two linear tracks 131 and two linear vibrators 132.

[0037] The feeding assembly is located above the discharging and discharge assemblies. Resin is vibrated by an inclined vibrator from the storage hopper through the feeding channel, then falls into the disc track, and is then vibrated by a circular vibrator to arrange the resin horizontally and vertically. Finally, it enters the vertical vibrating track and is conveyed out by the vertical vibrator. The storage hopper has a large capacity to meet the needs of long-term use with a single filling. The dual-channel discharge method doubles the discharge efficiency and meets the needs of rapid resin feeding in dual injection molding.

[0038] See appendix Figure 5 As shown, the resin aligning module includes a resin aligning mechanism 2, which includes a length detection component 21, a conveying component 22, a weighing component 23, an aligning component 24, and a base 25. The length detection component is connected to the end of the discharge component 13 and is used to detect whether the length of the discharged resin is qualified. The conveying component conveys the qualified resin from the end of the discharge component to the weighing component. After the resin is weighed and qualified, it is then transported by the conveying component to the magazine of the aligning component. The aligning component can simultaneously output two columns and multiple rows of resin arranged neatly at a set interval.

[0039] The end of the conveying component is equipped with four sets of grippers. The two sets of grippers on the right grab two columns of resin from the end of the discharge component, while the two sets of grippers on the left grab two columns of resin from the weighing component. The conveying component drives the four sets of grippers to move horizontally from right to left at the same time. The two sets of grippers on the right place put the resin into the weighing component, while the two sets of grippers on the left place the resin into the whole column component. That is, the length detection and the weighing detection work at the same time. The cycle repeats until the magazine is filled with two columns of resin, making the mechanism fully functional, compact in structure and with a short cycle time.

[0040] See appendix Figure 11As shown, the resin lifting module includes a resin lifting mechanism 3, which includes a support component 31, a lifting component 32, and a driven component 33. The lifting component is located below the driven component, and each of them is connected to a slider. The two sliders share a guide rail 3106. The lifting component is driven to lift by a lifting motor 3201, and the driven component floats accordingly. The guide rail is vertically fixed to the support component. The resin lifting mechanism as a whole is vertically fixed above the aligning component 24, which can transport two rows of resin from bottom to top into the loading robot.

[0041] The different components of this mechanism adopt a staggered layout. When retrieving resin, the lifting component can pass through the entire row of components to remove the resin without interference. After removing the resin, the lifting component lifts the resin further upward, embedding it into the driven component, and then rises together with the driven component. This is to protect the driven component as the resin rises. After the driven component rises to its upper limit, the lifting component continues to lift a certain distance, and the resin passes through the driven component's magazine and enters the magazine of the retrieving robot, completing the resin loading. The advantage of the staggered layout is that the resin can be quickly transferred between different components, saving mechanical time and space.

[0042] In this embodiment, automatic resin feeding is achieved through a resin vibration module, a resin alignment module, and a resin lifting module. It can feed two rows of resin in a single operation, doubling production efficiency compared to traditional single-row multi-row resin feeding mechanisms, thus solving the problem of insufficient resin feeding efficiency in dual-injection molding technology. Simultaneously, the three modules are closely positioned with the feeding frame. The disordered resin material, after being processed from top to bottom in the vibration module, is horizontally output as two rows of single-row, upright, and orderly resin material to the alignment module. After horizontal alignment, the resin material further presents itself as two rows of multiple upright rows, the state required for press sealing. The alignment mechanism then horizontally feeds this resin material into the resin lifting module, and from there, via the lifting mechanism, it is vertically transported from bottom to top to the upper platform of the feeding frame, where it is picked up by a robotic arm. This layout fully utilizes space, allowing each module to cooperate closely while also operating independently in cycles, reducing the system failure rate.

[0043] See appendix Figure 5 Appendix Figure 6The length detection component 21 includes a length detection bracket 210, a sensor A 211, a position detection bracket 212, a sensor B 213, a fixed support plate 214, a pressing cylinder 215, and a waste box 216. The length detection component 21 is connected to the end of the discharge component 13. The sensor A 211 is connected to the length detection bracket 210 at a certain angle and its position can be finely adjusted along the X / Y / Z directions. The position detection bracket 212 is connected to the base 25. The sensor B 213 is connected to the position detection bracket 212 at a certain angle and its position can be finely adjusted along the X / Y / Z directions. The waste box 216 is placed above the base 25 and below the waste port of the position detection bracket. The fixed support plate 214 is connected to the upper end of the discharge component 13. The pressing cylinder 215 is connected to the fixed support plate 214.

[0044] After the first resin moves to the end of the discharge assembly, the pressing cylinder 215 extends downward to press down on the second resin, and the sensor A211 detects whether the length of the first resin is qualified.

[0045] See appendix Figure 6 The length detection bracket 210 includes a length detection block 2101, an adjustment block A 2102, an adjustment block B 2103, a sensor mounting block C 2104, and a sensor mounting block D 2105. Adjustment blocks A and B are movably connected to the two ends of the length detection block, and sensor mounting blocks C and D are movably connected to adjustment blocks A and B, respectively.

[0046] Sensor A consists of two pairs of light sensors. The length detection block, adjustment blocks A / B, and sensor mounting blocks C / D can adjust the position of sensor A along the Y, Z, and X axes respectively to accurately align with the light.

[0047] See appendix Figure 6 The positioning detection bracket 212 includes an adjusting base plate 2121, a fixed support plate 2122, a fixed support plate 2123, an inclined baffle 2124, an adjusting block C 2125, a sensor mounting block A 2126, a sensor mounting block B 2127, a push plate 2128, a push plate shaft 2129, a push plate fixing block 2130, a connecting plate H 2131, a pad 2132, an adjusting plate E 2133, and a tilting cylinder 2134. The adjusting base plate 2121 is movably connected to the base 25. The inclined baffle 2124, the fixed plate 2123, and the fixed support plate C 2125 are all connected to the base 25. Support plate 2122 and adjusting base plate 2121 are fixedly connected in sequence. Sensor mounting block A2126 and sensor mounting block B2127 are movably connected to adjusting block C2125. Adjusting block C2125 is movably connected to fixed plate 2123. Push plate 2128, push plate fixing block 2130 and push plate shaft 2129 are fixedly connected in sequence. Push plate shaft 2129 is movably connected to fixed plate 2123 and tilting cylinder 2134 through bearing and connecting plate H2131. Tilting cylinder 2134 is fixedly connected to fixed plate 2123 through pad 2132.

[0048] The position of sensor B213 can be adjusted in the X / Y / Z axes by adjusting the base plate 2121, adjusting block C2125, sensor mounting block A2126, and sensor mounting block B2127. The extension and retraction of the flip cylinder 2134 drives the push plate shaft 2129 and push plate 2128 to rotate. If the resin length is qualified, the push plate will remain in the upward position to prevent the resin from falling. If the test is unqualified, the push plate will flip down and the unqualified resin will fall into the waste box 216 due to the lack of obstruction.

[0049] See appendix Figure 8 The weighing assembly 23 includes an adjusting plate D2301, a support plate D2302, a base plate D2303, a sensor pad 2304, a sensor mounting base 2305, a weighing sensor 2306, a weighing pallet 2307, a lifting plate 2308, a lifting stop pin 2309, a lifting pin 2310, a lifting cylinder 2311, and a waste box 216. The adjusting plate D2301 is movably connected to the base 25, the support plate D2302 is fixedly connected to the adjusting plate D2301, and the base plate D2304... 03 is movably connected to the support plate D2302. The sensor pad 2304, sensor mounting base 2305 and lifting cylinder 2311 are fixed to the base plate D2303. The weighing pallet 2307, weighing sensor 2306 and sensor mounting base 2305 are fixed in sequence. The lifting pin 2310 and lifting stop pin 2309 are fixed to the lifting plate 2308. The lifting plate 2308 is fixed to the lifting cylinder 2311. The waste box 216 is placed between the base 25 and the base plate D2303.

[0050] The transport assembly 22 delivers two columns of resin that have passed the length inspection to the weighing tray 2307. The weighing sensor 2306 detects whether the resin weight is qualified. After weighing, the lifting cylinder 2311 lifts up and the lifting pin 2310 lifts the resin away from the weighing sensor 2306. The transport assembly clamps the resin and moves it horizontally. If the weight is qualified, it is transported to the whole column assembly 24. If the weight is not qualified, the transport assembly 22 discards the resin at a designated position in the middle of the journey. The resin falls into the waste box 216.

[0051] See appendix Figure 7The conveying assembly 22 includes an electric cylinder support plate A2201, an electric cylinder support plate B2202, an electric cylinder mounting plate 2203, an electric cylinder module 2204, a cable chain 2205, a cable chain mounting plate 2206, a cylinder connecting plate A2207, a cylinder connecting plate B2208, a lifting cylinder 2209, a gripper connecting plate A2210, a gripper connecting plate B2211, a base plate mounting plate 2212, a clamping cylinder 2213, a left gripper 2214, and a right gripper 2215. The electric cylinder support plate A2201 is fixedly connected to the base 25. The electric cylinder support plate A2201, electric cylinder support plate B2202, electric cylinder mounting plate 2203, and electric cylinder module 2204 are arranged according to... The cable chain 2205 is fixedly connected at one end to the electric cylinder mounting plate 2203, and at the other end to the cable chain mounting plate 2206, cylinder connecting plate A2207, cylinder connecting plate B2208, and lifting cylinder 2209 in sequence. The cylinder connecting plate A2207 is fixedly connected to the moving plate of the electric cylinder module 2204. The gripper connecting plate A2210 is movably connected to the lifting cylinder 2209. The gripper connecting plate B2211 and the base plate mounting plate 2212 are fixedly connected to the gripper connecting plate A2210. The clamping cylinder 2213 is fixedly connected to the gripper connecting plate B2211. The left gripper 2214 and the right gripper 2215 are movably connected to the clamping cylinder 2213.

[0052] The electric cylinder module 2204 reciprocates along the X-axis, clamping the resin from the end of the discharge assembly 13 via the clamping cylinder 2213, left gripper 2214, and right gripper 2215. The lifting cylinder 2209 rises, and the electric cylinder module moves the resin to the left and directly above the center of the weighing tray 2307. The lifting cylinder 2209 descends, and the clamping cylinder 2213, left gripper 2214, and right gripper 2215 open, allowing the resin to fall vertically into the weighing tray 2307. After weighing, the electric cylinder module 2204 repeats the previous action, transferring the resin from the weighing assembly to the magazine of the entire assembly 24.

[0053] See appendix Figure 9The alignment assembly 24 includes a left resin support plate 2401, a right resin support plate 2402, a first stop pin 2403, a connecting plate E2404, a shaped block 2405, a guide rail slider 2406, a synchronous belt C2407, a pulley C2408, a motor mounting base 2409, a translation motor 2410, a right alignment base plate 2411, a left alignment base plate 2412, a support base plate 2413, a connecting plate F2414, a connecting plate G2415, a sensor support plate 2416, and a dust collection plate 2417. The left resin support plate 2401... The right resin support plate 2402, the first stop pin 2403, the connecting plate E2404, and the irregular block 2405 are sequentially fixed. The irregular block 2405 is movably connected to the guide rail slider 2406. The guide rail slider 2406, the right alignment substrate 2411, the connecting plate F2414, the connecting plate G2415, and the left alignment substrate 2412 are sequentially fixed. The dust collection plate 2417 and the sensor support plate 2416 are both fixed to the connecting plate G2415. The support base plate 2413 is fixed between the left and right alignment substrates 2411 / 2412 and the base 25.

[0054] After the transport component 22 vertically places two rows of single-row resin into the left resin tray 2401 and the right resin tray 2402, the translation motor 2410 sequentially drives the pulley C2408, the synchronous belt C2407, the guide rail slider 2406, and the left and right resin trays, etc., to move forward one unit distance. This one unit distance is the distance between two adjacent rows of resin. This process is repeated until the two rows of multi-row cartridges on the resin trays are filled in sequence. Then, the translation motor 2410 drives the left and right resin trays, carrying the two rows of multi-row resin, to continue moving forward and horizontally to the position between the lifting component 32 and the driven component 33. Finally, the resin rises with the lifting mechanism 3 to the position where the robot arm picks up the material.

[0055] See appendix Figure 11 The resin lifting module includes a resin lifting mechanism 3, which includes a support component 31, a lifting component 32, and a driven component 33. The lifting component 32 is movably connected to the lower part of the driven component 33. The lifting component is connected to slider A3213, and the driven component is connected to slider B3301. The two sliders share a guide rail 3106. The lifting component is driven to lift by a lifting motor 3201, and the driven component floats accordingly. The guide rail 3106 is vertically fixed to the support component 31. The resin lifting mechanism 3 is vertically fixed above the aligning component 24, and can transport two rows of resin from bottom to top into the loading robot.

[0056] See appendix Figure 12The support assembly 31 includes a lifting base plate 3101, a left side plate 3102, a right side plate 3103, an upper side plate 3104, a lower side plate 3105, a guide rail 3106, a lifting positioning block A 3107, a lifting positioning block B 3108, a lifting bracket A 3109, a lifting bracket B 3110, a positioning plate 3111, and a material picking positioning block 3112. The left side plate 3102, the right side plate 3103, the upper side plate 3104, and the lower side plate 3105 are also included. 5. Guide rail 3106, lifting positioning block A3107, and lifting positioning block B3108 are all fixedly connected to the lifting base plate 3101. Lifting bracket A3109 and lifting bracket B3110 are fixedly connected to the upper platform of the feeding frame 4. Picking positioning block 3112, positioning plate 3111, and lifting bracket are fixedly connected in sequence. Lifting positioning block A3107 is fixedly connected to the upper platform of the feeding frame 4, and lifting positioning block B3108 is fixedly connected to the upper end face of the alignment assembly 24.

[0057] See appendix Figure 13 The lifting assembly 32 includes a lifting motor 3201, a reducer 3202, a motor mounting plate 3203, a pulley A3204, a synchronous belt A3205, a pulley shaft 3206, a bearing 3207, a bearing support plate A3208, a bearing support plate B3209, a synchronous belt B3210, a pulley B3211, a toothed plate 3212, a slider A3213, a slider connecting plate A3214, a transition block A3215, a limit pin 3216, an equalizing bolt A3217, a rotating block 3218, a guide wheel A3219, a guide wheel B3220, a pressure block 3221, a guide block 3222, a guide shaft 3223, a spring A3224, a pallet support block A3225, a pallet support block B3226, a pin mounting plate 3227, a pin 3228, and a light-blocking plate 3229.

[0058] The lifting motor 3201, reducer 3202, motor mounting plate 3203, and left alignment base plate 2412 are sequentially fixedly connected. The pulley A3204, synchronous belt A3205, pulley shaft 3206, bearing 3207, bearing support plate A3208, bearing support plate B3209, synchronous belt B3210, pulley B3211, toothed plate 3212, slider A3213, slider connecting plate A3214, adapter block A3215, and limit pin 3216 are sequentially fixedly connected. The slider A3213 is movably connected to the guide rail 3106. The equalizing bolt 317, pressure block 3221, and light-blocking plate 3229 are all fixedly connected to the slider connecting plate A3214. The rotating block 3218 is connected by the equal-height bolt A3217 and can rotate relative to the slider connecting plate A3214. The guide wheel B3220 is fixedly connected to the rotating block 3218. The guide shaft 3223 is fixedly connected to the pressure block 3221. The spring A3224 is placed between the guide block 3222 and the pressure block 3221. The guide shaft 3223 passes through the spring A3224 and enters the interior of the guide block 3222. The guide block 3222 is slidably connected to the pressure block 3221 and slidably connected to the guide wheel B3220. The ejector pin 3228, ejector pin mounting plate 3227, tray support block B3226, tray support block A3225, and adapter block A3215 are fixedly connected in sequence.

[0059] When the left / right resin pallets 2401 / 2402 are fully loaded with two rows of resin and move to the middle position between the lifting assembly 32 and the driven assembly 33, the lifting motor 3201 rotates forward. Through the transmission of components such as pulley A3204, synchronous belt A3205, pulley shaft 3206, synchronous belt B3210, pulley B3211, toothed plate 3212, and slider A3213, the slider A3213 and other components fixed to it move vertically upward, including the ejector pin 3228. The ejector pin 3228 moves vertically upward and passes through the left / right resin pallets 2401. The cartridge hole on / 2402 pushes the resin out of the cartridge and away from the left / right resin trays 2401 / 2402; at this time, the guide wheel A3219 gradually contacts the roller guide block 3307 in the driven assembly 33. Since the preload of the spring A3224 is large enough, it pushes up the guide block 3222, guide wheel B3220, rotating block 3218 and guide wheel A3219 in sequence, so that the lifting assembly pushes up the roller guide block 3307 in the driven assembly 33 through the guide wheel A3219, so that the driven assembly 33 moves vertically upward together with the lifting assembly 32.

[0060] During the vertical ascent of the lifting assembly and the driven assembly, the two rows of resin are always lifted by the ejector pins 3228, and the resin is placed in the clip holes of the tray C3305 in the driven assembly to prevent it from falling during the ascent. The lifting motor 3201 controls the resin to rise to a certain height and then stops rotating. After the material handling robot hovers at the position to pick up the resin, the lifting motor rotates forward again until the driven assembly rises to the upper limit and stops. Then, driven by the lifting motor, the lifting assembly overcomes the preload of the spring A3224, causing the guide wheel A3219 to continue moving upward relative to the roller guide block 3307 for a certain distance. At this time, the resin is lifted a second time by the ejector pins 3228, leaves the clip holes of the tray C3305, and enters the clips of the material handling robot, completing the orderly feeding of two rows of resin. Then, the lifting motor reverses and drives the lifting assembly to move downward to the origin position. The driven assembly moves downward to the origin position under its own weight, waiting for the arrival of the next batch of resin, and the cycle repeats.

[0061] See appendix Figure 14 The driven component 33 includes a slider B3301, a slider connecting plate B3302, a transition block B3303, a tray support block C3304, a tray C3305, a second stop pin 3306, a roller guide block 3307, a pull rod 3308, an equalizing bolt B3309, a spring B3310, a limiter A3311, and a limiter B3312. The slider B3301 is movably connected to the guide rail 3106. Connecting plate B3302, adapter block B3303, pallet support block C3304, pallet C3305, and second stop pin 3306 are sequentially fixedly connected. Pull rod 3308, roller guide block 3307, limiter A3311, and limiter B3312 are all fixedly connected to slider connecting plate B3302. Equal height bolt B3309 and spring B3310 are movably connected to pull rod 3308. Roller guide block 3307 is rollingly connected to guide wheel A.

[0062] The driven component itself has no power. It rises by contacting the roller guide block 3307 in the driven component 33 via the guide wheel A3219 of the lifting component. It descends mainly by its own weight. When it cannot descend smoothly by its own weight (e.g., due to an accident such as the slider B3301 getting stuck), after the lifting component moves down to a certain distance from the driven component, the slider connecting plate A3214 on the lifting component will contact the pull rod 3308 on the driven component, pulling the driven component down to the origin.

[0063] In this embodiment, a set of resin comprises fourteen cylindrical epoxy resin particles arranged in two rows and seven columns. This system can meet the feeding requirements of various resin specifications, covering common resin specifications in the molding industry: diameter range φ12-φ20mm, length range L20-L32mm, and length-to-diameter ratio 1.0-1.7. When changing to different specifications of resin, only a few interchangeable parts need to be replaced and the relevant system parameters adjusted. For example, adjusting the width components of the disc track and the linear vibration track can meet the conveying requirements of resins with different diameters, and adjusting the height component of the linear vibration component can meet the conveying requirements of resins with different lengths. The parts that are in direct contact with the resin can be replaced at the ends of the counterweight component, the alignment component, the lifting component, and the driven component.

[0064] The specific working process of this embodiment is as follows: When the resin vibration module is working, the inclined vibrator vibrates, driving the feeding channel to vibrate. The feeding channel is connected to the storage bin. After passing through the feeding channel from the storage bin, the resin falls into the disc track. The dust suction port at the middle of the feeding channel works, sucking away a large amount of resin dust. Then, the circular vibrator vibrates, arranging the resin in the disc track from a disordered state to a horizontal and upright state, and then conveying it to the straight vibration track. The straight vibrator drives the straight vibration track to vibrate, conveying the resin to the end of the straight vibration track for length detection. The length detection sensor in the alignment module works. When the length detection is unqualified, the flipping cylinder 2134 descends, driving the push plate 2128 to flip down. The resin with unqualified length will move forward and fall into the waste box 216 due to the lack of push plate obstruction. When the length detection is qualified, the push plate remains in the flipped state, acting as an obstruction for the resin. Then, the resin is clamped by the mechanical claw of the handling component and lifted. The lowering cylinder 2209 rises, the electric cylinder module 2204 moves to the left, and the lifting cylinder 2209 descends, causing the resin to fall into the weighing assembly to check if the weight is qualified. Then, the lifting cylinder 2209 rises, the electric cylinder module 2204 moves to the right, and the lifting cylinder 2209 descends. After weighing, the two sets of grippers on the left clamp the resin on the weighing assembly, and the two sets of grippers on the right clamp the resin that has passed the length test. The lifting cylinder 2209 rises, the electric cylinder module 2204 moves to the left, and the lifting cylinder 2209 descends. The resin that has passed the length test at the end of the linear vibration track is transported to the weighing assembly. The resin that has passed the weight test is simultaneously transported to the magazine of the entire assembly. This process is repeated cyclically. When the magazine of the entire assembly is full, the resin is moved into the lifting mechanism. The lifting assembly, in conjunction with the driven assembly, lifts the full set of resin material upwards and removes it until it is transported to the magazine of the picking robot.

[0065] This invention is applicable to dual-injection molding systems in chip encapsulation. During use, resin material is loaded into a storage hopper. Three sets of vibrators act sequentially to initially arrange the resin material into two rows. After length and weight checks, qualified resin is arranged into two rows at a specified interval, while unqualified resin is automatically discarded. Finally, the resin is loaded into a resin magazine and fed into a robotic arm. Compared to traditional single-row resin loading encapsulation methods, this invention allows for simultaneous dual-row resin loading, doubling work efficiency and halving site and personnel costs.

[0066] The present invention also provides a method for absorbing resin dust. The main body of the dust collection mechanism is located inside the other side of the feeding frame. The resin feeding system has a total of 6 dust collection ports, located in the middle of each of the two feeding channels 112, at the end of each of the two disc tracks 121, and at the end of the dust collection plate 2417. The effective absorption of a large amount of dust reduces the frequency of system failures and improves stability.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A resin double-row feeding device, characterized in that, include: The vibration mechanism includes a feeding assembly, a discharging assembly, and a discharge assembly installed between the feeding assembly and the discharging assembly, which arranges the resin into two spaced rows. The aligning mechanism includes an aligning assembly, which includes a left resin tray and a right resin tray spaced apart. The surfaces of the left and right resin trays have multiple first lifting openings along their length. Each first lifting opening has a through notch on its inner side and a first stop pin is installed on its outer side. The mechanism also includes a conveying assembly, which sequentially conveys the resin from the surface of the discharge assembly to the surface of the first lifting opening. The lifting mechanism includes a support assembly, and a lifting assembly and a driven assembly are slidably connected to the side wall of the support assembly. The driven assembly includes two rows of trays C, each containing multiple clip holes. The lifting assembly includes two rows of corresponding ejector pins. The two rows of ejector pins pass through the bottom and through the notch to lift the resin on the surface of the first lifting opening into the clip holes of the tray C to complete the feeding of the two rows of resin. The discharge assembly includes a disc track and a circular vibrator installed at the lower end of the disc track; the feeding assembly includes a feeding channel and an inclined vibrator installed at the bottom; the discharge assembly includes a linear track and a linear vibrator installed at the bottom of the linear track. The conveying assembly includes four sets of spaced left and right grippers, as well as a clamping cylinder for controlling the clamping of the left and right grippers and an electric cylinder module for controlling the synchronous linear movement of the four sets of left and right grippers. An elastic component is provided between the lifting component and the driven component. The elastic component includes a spring A that provides preload. A limit component is installed on the top of the driven component. After the driven component stops moving, the lifting component continues to move a predetermined distance toward the driven component to lift and feed the resin through the ejector pin. The lifting assembly and the aligning assembly adopt an interleaved layout. When taking resin material, the lifting assembly passes through the inside of the aligning assembly to take the resin material. After taking the resin material, the lifting assembly lifts the resin to rise further and embeds it into the driven assembly, and then rises together with the driven assembly.

2. The resin double-row feeding device according to claim 1, characterized in that, The assembly also includes a timing belt C and a translation motor that controls the directional movement of the timing belt C. The left and right resin pallets are fixedly connected to the timing belt C via connecting plates. After one transport operation by the transport assembly, the left and right resin pallets are moved a unit distance in a predetermined direction by the timing belt C.

3. The resin double-row feeding device according to claim 1, characterized in that, The first lifting opening and the ejector pin have circular cross-sections. The cross-sectional size of the first lifting opening is larger than that of the ejector pin. There are four first stop pins, which are arranged circumferentially around the outer side of the first lifting opening and symmetrically distributed on the left and right sides of the opening.

4. The resin double-row feeding device according to claim 1, characterized in that, The alignment mechanism also includes a length detection component installed at the end of the discharge assembly. The length detection component includes a pressing cylinder and a sensor A. The pressing cylinder extends to press down on the resin, and the sensor A detects the length of the resin.

5. The resin double-row feeding device according to claim 4, characterized in that, The alignment mechanism also includes a weighing component installed between the length detection component and the alignment component. The weighing component includes a weighing tray and a weighing sensor, and the weight of the resin is detected by the weighing sensor.

6. The resin double-row feeding device according to claim 1, characterized in that, The driven component includes a U-shaped support plate C, with multiple second lifting openings on the surface of the support plate C. The number and position of the second lifting openings are adapted to the first lifting openings.

7. A resin double-row feeding process, characterized in that, Using the resin dual-row feeding device according to any one of claims 1-6 includes the following steps: S1. The resin is arranged into two spaced columns by a vibration mechanism; S2. The resin on the surface of the discharge assembly is sequentially transported to the surface of the first lifting opening by the transport assembly; S3. Control the two rows of ejector pins to pass through the notch from the bottom and lift the resin on the surface of the first lifting opening into the clip hole of the tray C to complete the feeding of the two rows of resin.

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