Epoxy plastic packaging material raw material weighing anti-caking feeding device

Abstract

This utility model discloses an anti-caking feeding device for weighing epoxy molding compound raw materials, including a base plate with casters installed at the four corners of the bottom. A first bracket is installed on the top of the base plate, and a second bracket is installed on one side of the first bracket. A conveying and crushing component for conveying and crushing epoxy molding compound raw materials is fixedly installed on the top of the first bracket. A metering feeding component for feeding is provided on the second bracket, and the metering feeding component is located below the discharge end of the conveying and crushing component. This utility model features a conveying and crushing component that pushes the raw material through spiral blades and uses replaceable blades to cut the caking material at high speed, crushing the raw material into uniform small particles, adapting to diverse raw material states. This solves the problem that existing devices can only perform simple stirring and have poor caking treatment effects, reduces equipment downtime for cleaning, and ensures the continuity of epoxy molding compound raw material processing and production.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for processing epoxy molding compound raw materials, specifically an anti-caking feeding device for weighing epoxy molding compound raw materials. Background Technology

[0002] Epoxy molding compound is a thermosetting chemical material made from epoxy resin as the base resin, hardeners, and other components. This material is mostly used for plastic encapsulation of semiconductor devices. In practical applications, weighing and feeding devices are required for precise addition of the epoxy molding compound.

[0003] Existing feeding devices mostly only have a single feeding function or a simple stirring function, which cannot effectively handle agglomerated raw materials. When agglomerated raw materials enter the subsequent weighing stage, they not only block the feeding channel but also cause uneven distribution of the raw materials. At the same time, existing weighing structures mostly use weighing sensors for direct weighing, but when weighing raw materials for different batches and different usage requirements, the adjustment process is complicated, requiring frequent calibration of sensor parameters, which is cumbersome and inefficient, and cannot meet the needs of efficient and flexible production. Therefore, we need to propose an anti-agglomerating feeding device for weighing epoxy molding compound raw materials. Utility Model Content

[0004] The purpose of this invention is to provide an anti-caking feeding device for weighing epoxy molding compound raw materials, which has the advantages of effectively breaking up caking and optimizing weighing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-caking feeding device for weighing epoxy molding compound raw materials, comprising a base plate, universal wheels installed at the four corners of the bottom of the base plate, a first bracket installed on the top of the base plate, a second bracket installed on one side of the first bracket, and a conveying and crushing component for conveying and crushing epoxy molding compound raw materials. The second support is equipped with a metering and feeding component for feeding materials, and the metering and feeding component is located below the discharge end of the conveying and crushing component.

[0006] Preferably, the conveying and crushing assembly includes a conveying and crushing bin, a feed hopper is vertically installed on the top of the conveying and crushing bin near the feed end, and a discharge pipe is vertically connected to the end of the conveying and crushing bin away from the feed hopper.

[0007] Preferably, the conveying and crushing assembly further includes a rotating shaft and a first servo motor. The rotating shaft is installed inside the conveying and crushing chamber, and the first servo motor is installed outside the conveying and crushing chamber. One end of the rotating shaft extends rotatably to the outside of the conveying and crushing chamber and is keyed to the power output end of the first servo motor.

[0008] Preferably, the conveying and crushing assembly further includes spiral blades and crushing blades, which are sequentially sleeved on the outer surface of the rotating shaft along the axial direction of the rotating shaft, and the crushing blades are close to the discharge end of the conveying and crushing chamber.

[0009] Preferably, the metering and feeding assembly includes a first mounting frame, which is mounted on top of the second bracket and located directly below the discharge pipe. A connecting plate is provided inside the first mounting frame. The surface of the connecting plate has a through hole adapted to the discharge port of the discharge pipe, and the through hole is located directly below the discharge pipe. A material pipe baffle is fixedly connected to the side of the connecting plate near the conveying and crushing assembly. Limiting sliders are fixedly connected to both sides of the connecting plate and the material pipe baffle. A limiting groove adapted to the limiting slider is provided on the inner wall of the first mounting frame, and the limiting slider is slidably connected inside the limiting groove.

[0010] Preferably, the metering and feeding assembly further includes a metering tube, which is detachably connected to the bottom of the connecting plate and the inlet is adapted to the through hole of the connecting plate.

[0011] Preferably, the metering and feeding assembly further includes a connecting rod, which is fixedly connected to the side of the metering tube near the material tube baffle. The bottom of the connecting rod is hinged to a metering tube discharge baffle adapted to the metering tube via a pin. An electric cylinder is provided below the first mounting frame, and the working end of the electric cylinder is fixedly connected to the side of the connecting rod away from the metering tube. An L-shaped baffle is slidably provided on one side of the first mounting frame, and the bottom baffle end of the L-shaped baffle abuts against the lower surface of the metering tube discharge baffle.

[0012] Preferably, the metering and feeding assembly further includes a second mounting bracket, which is vertically disposed on the side of the L-shaped baffle away from the discharge pipe. A threaded rod is rotatably mounted inside the second mounting bracket, and a second servo motor is mounted outside the second mounting bracket. One end of the threaded rod extends rotatably to the outside of the second mounting bracket and is keyed to the power output end of the second servo motor. A moving block is threaded onto the surface of the threaded rod, and the moving block is fixedly connected to the side of the L-shaped baffle away from the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model incorporates a conveying and crushing component. This component uses spiral blades to push raw materials and replaceable blades to cut clumps at high speed, crushing the raw materials into uniform small particles, adapting to diverse raw material states. This solves the problems of existing devices that only perform simple stirring and have poor clump removal effects, reducing equipment downtime for cleaning and ensuring the continuity of epoxy molding compound raw material processing and production.

[0014] 2. This utility model, through the setting of a metering discharge component, the alignment of the metering tube with the through hole of the connecting plate, the sealing of the material tube baffle, and the L-shaped baffle to prevent leakage, has a multi-structure design. Compared with the traditional weighing sensors that require frequent calibration and are susceptible to vibration and dust, the metering tube achieves metering through a fixed physical volume. It can quickly adapt to production needs by simply replacing the metering tube with the corresponding volume according to different batches and different usage requirements. The structure is simpler and the failure rate is lower. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the conveying and crushing component of this utility model; Figure 3 This is a schematic diagram of the metering and feeding assembly of this utility model; Figure 4 This is a front view structural diagram of the metering and feeding assembly of this utility model; Figure 5 This is a schematic diagram showing the connection relationship between the L-shaped baffle and the moving block of this utility model; Figure 6 This is a schematic diagram showing the connection relationship between the limiting slider and the material tube baffle of this utility model.

[0016] In the diagram: 1. Base plate; 2. Casters; 3. First support; 4. Second support; 5. Conveying and crushing chamber; 6. Feed hopper; 7. Rotating shaft; 8. First servo motor; 9. Spiral blade; 10. Crushing blade; 11. Discharge pipe; 12. First mounting bracket; 13. Connecting plate; 14. Limiting slider; 15. Limiting groove; 16. Material pipe baffle; 17. Metering pipe; 18. L-shaped baffle; 19. Connecting rod; 20. Electric cylinder; 21. Metering pipe discharge baffle; 22. Second mounting bracket; 23. Threaded rod; 24. Second servo motor; 25. Moving block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6This utility model provides a technical solution: an anti-caking feeding device for weighing epoxy molding compound raw materials, including a base plate 1, universal wheels 2 installed at the four corners of the bottom of the base plate 1, a first bracket 3 installed on the top of the base plate 1, a second bracket 4 installed on one side of the first bracket 3, and a conveying and crushing assembly for conveying and crushing epoxy molding compound raw materials. The conveying and crushing assembly includes a conveying and crushing chamber 5, a feed hopper 6 vertically installed on the top of the conveying and crushing chamber 5 near the feed end, and a discharge pipe 11 vertically connected to the end of the conveying and crushing chamber 5 away from the feed hopper 6. The connection between the conveying and crushing chamber 5 and the discharge pipe 11 is a detachable insertion connection, and the bottoms of the first bracket 3 and the second bracket 4 are detachably connected to the top of the base plate 1 by bolts. The bolts can be released from locking the first bracket 3 by using a tool, and then the entire conveying and crushing assembly and the conveying and crushing chamber 5 can be moved horizontally for easy cleaning and maintenance. The inner diameter of the discharge pipe 11 is matched with the inlet of the metering feed assembly to ensure that the crushed raw material is accurately guided to the metering feed assembly below, and to reduce the residue of raw material at the junction of the discharge pipe 11 and the metering feed assembly.

[0019] The conveying and crushing assembly also includes a rotating shaft 7 and a first servo motor 8. By controlling the rotational speed of the first servo motor 8, the conveying speed of the raw materials is adjusted to match the metering rhythm of the subsequent metering and feeding assembly. The rotating shaft 7 is installed inside the conveying and crushing chamber 5, and the first servo motor 8 is installed outside the conveying and crushing chamber 5. One end of the rotating shaft 7 extends rotatably to the outside of the conveying and crushing chamber 5 and is keyed to the power output end of the first servo motor 8. A sealed bearing is provided at the connection between the rotating shaft 7 and the conveying and crushing chamber 5 to prevent raw material dust from entering the bearing and causing jamming.

[0020] Meanwhile, the conveying and crushing assembly also includes spiral blades 9 and crushing cutters 10. The spiral blades 9 and crushing cutters 10 are sequentially sleeved on the outer surface of the rotating shaft 7 along the axial direction of the rotating shaft 7, with the crushing cutters 10 close to the discharge end of the conveying and crushing chamber 5. The crushing cutters 10 are detachably installed on the outer surface of the rotating shaft 7, and different specifications of blades can be replaced according to the degree of raw material agglomeration. After the conveying and crushing chamber 5 is separated from the discharge pipe 11, the blades of the crushing cutters 10 can be easily replaced.

[0021] The blade of the crusher 10 faces the rotation direction of the spiral blade 9. When the rotating shaft 7 rotates at high speed, it cuts and impacts the agglomerated raw material pushed by the spiral blade 9, breaking the agglomerated material into discrete small particles, thus achieving the "anti-agglomeration" function.

[0022] Furthermore, the second support 4 is equipped with a metering feeding component for feeding materials, and the metering feeding component is located below the discharge end of the conveying and crushing component.

[0023] Furthermore, the metering and feeding assembly includes a first mounting frame 12, which is installed on top of the second support 4 and directly below the discharge pipe 11. A connecting plate 13 is provided inside the first mounting frame 12. The connecting plate 13 receives the raw material falling from the discharge pipe 11 and guides it to the metering pipe 17, while simultaneously driving the metering pipe 17 and the material pipe baffle 16 to move synchronously. The surface of the connecting plate 13 has a through hole adapted to the discharge port of the discharge pipe 11, and the through hole is located directly below the discharge pipe 11. The material pipe baffle 16 is fixedly connected to the side of the connecting plate 13 near the conveying and crushing assembly. The size of the material pipe baffle 16 is larger than the discharge port of the discharge pipe 11; when the connecting plate 13 moves it to below the discharge pipe 11, it can completely block the discharge pipe 11, preventing the raw material from continuously falling, achieving "metering interruption," and avoiding overfeeding.

[0024] Furthermore, limiting sliders 14 are fixedly connected to both sides of the connecting plate 13 and the material tube baffle 16. The inner wall of the first mounting bracket 12 is provided with a limiting groove 15 that matches the limiting slider 14, and the limiting slider 14 is slidably connected inside the limiting groove 15. By setting the limiting slider 14 and the limiting groove 15, the movement trajectory of the connecting plate 13 and the material tube baffle 16 can be limited, while providing stable support for the connecting plate 13 and the material tube baffle 16.

[0025] Based on this, the metering and feeding assembly also includes a metering tube 17, which is detachably connected to the bottom of the connecting plate 13 and whose inlet is adapted to the through hole of the connecting plate 13. The metering tube 17 serves as a quantitative container for raw materials, achieving weighing through a fixed volume. Different volumes of metering tubes 17 can be disassembled and replaced to adapt to different weighing requirements.

[0026] Furthermore, the metering and feeding assembly also includes a connecting rod 19. The connecting rod 19 receives the thrust of the electric cylinder 20 and drives the metering tube 17, connecting plate 13, material tube baffle 16, and metering tube discharge baffle 21 to move synchronously. At the same time, it provides a hinge fulcrum for the metering tube discharge baffle 21 through a pin. The connecting rod 19 is fixedly connected to the side of the metering tube 17 near the material tube baffle 16. The bottom of the connecting rod 19 is hinged to the metering tube discharge baffle 21, which is adapted to the metering tube 17, through a pin. The electric cylinder 20 is arranged below the first mounting bracket 12. The working end of the electric cylinder 20 is fixedly connected to the side of the connecting rod 19 away from the metering tube 17.

[0027] In addition, an L-shaped baffle 18 is slidably provided on one side of the first mounting bracket 12, with the bottom baffle end of the L-shaped baffle 18 abutting against the lower surface of the measuring tube discharge baffle 21. During the metering stage, the bottom baffle end of the L-shaped baffle 18 abuts against the lower surface of the measuring tube discharge baffle 21, supporting the measuring tube discharge baffle 21 to block the measuring tube 17. Limiting blocks are fixedly connected to both ends of the L-shaped baffle 18 near the connecting plate 13. The surface of the connecting plate 13 is provided with limiting grooves that are adapted to the limiting blocks. The limiting blocks are slidably connected inside the limiting grooves. By setting the limiting blocks and limiting grooves, the movement trajectory of the L-shaped baffle 18 can be limited, and the L-shaped baffle 18 can be stably supported.

[0028] Furthermore, the metering and feeding assembly also includes a second mounting bracket 22, which is vertically positioned on the side of the L-shaped baffle 18 away from the discharge pipe 11. A threaded rod 23 is rotatably mounted inside the second mounting bracket 22, and is horizontally rotatably mounted within it, with external threads on its surface. This threaded rod 23 is adapted to the internal threads of the moving block 25 and rotates under the drive of the second servo motor 24. The rotational motion is converted into linear motion through threaded transmission, thus moving the moving block 25. The second servo motor 24 is mounted externally on the second mounting bracket 22. One end of the threaded rod 23 extends rotatably to the outside of the second mounting bracket 22 and is keyed to the power output end of the second servo motor 24. The moving block 25 is threadedly fitted onto the surface of the threaded rod 23, and the moving block 25 is fixedly connected to the side of the L-shaped baffle 18 away from the connecting plate 13.

[0029] More notably, a limiting block is fixedly connected to the side of the movable block 25 near the inner wall of the second mounting bracket 22. The inner wall of the second mounting bracket 22 has a limiting groove adapted to the limiting block, and the limiting block is slidably connected inside the limiting groove. By setting the limiting block and the limiting groove, the movement trajectory of the movable block 25 can be limited, while providing stable support for the movable block 25. The movable block 25 can also drive the L-shaped baffle 18 to move up and down to accommodate different specifications of metering tubes 17.

[0030] In summary, when it is necessary to convey and weigh epoxy molding compound raw materials, the operator moves the device to the designated position and locks it using the casters 2, and then replaces the metering tube 17 with the corresponding capacity according to the weighing requirements; the electric cylinder 20 retracts, driving the metering tube 17 and the connecting plate 13 to move directly below the discharge pipe 11, with the through hole of the connecting plate 13 aligned with the discharge pipe 11; the second servo motor 24 drives the threaded rod 23 to rotate, and the moving block 25 drives the L-shaped baffle 18 to slide below the metering tube 17, supporting the metering tube discharge baffle 21 to block the metering tube 17; the raw materials are put into the feed hopper 6, completing the preparation.

[0031] At this time, the first servo motor 8 starts, driving the rotating shaft 7, the spiral blade 9, and the crushing knife 10 to rotate; the raw material enters the conveying and crushing chamber 5 through the feed hopper 6, the spiral blade 9 pushes the raw material towards the discharge end, and the crushing knife 10 crushes the lumps in the raw material; the crushed raw material falls through the discharge pipe 11 and falls into the metering pipe 17 through the through hole of the connecting plate 13.

[0032] After the metering tube 17 is full, the electric cylinder 20 extends, driving the metering tube 17 and the connecting plate 13 to move, and the material tube baffle 16 simultaneously blocks the discharge tube 11; at this time, the metering tube discharge baffle 21 loses the support of the L-shaped baffle 18, and the raw material in the metering tube 17 falls to the receiving device, completing one feeding cycle.

[0033] It should be noted that the servo motors, electric cylinders, etc. mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the servo motors, electric cylinders, etc. can be powered by built-in power supplies or by AC power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-caking feeding device for weighing epoxy molding compound raw materials, comprising a base plate (1), universal wheels (2) installed at the four bottom corners of the base plate (1), a first bracket (3) installed at the top of the base plate (1), and a second bracket (4) installed on one side of the first bracket (3), characterized in that: The top of the first bracket (3) is fixedly equipped with a conveying and crushing assembly for conveying and crushing epoxy molding compound raw materials; The second support (4) is provided with a metering feeding component for feeding materials, and the metering feeding component is located below the discharge end of the conveying and crushing component.

2. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 1, characterized in that: The conveying and crushing assembly includes a conveying and crushing chamber (5), a feed hopper (6) is vertically installed on the top of the conveying and crushing chamber (5) near the feed end, and a discharge pipe (11) is vertically connected to the end of the conveying and crushing chamber (5) away from the feed hopper (6).

3. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 2, characterized in that: The conveying and crushing assembly also includes a rotating shaft (7) and a first servo motor (8). The rotating shaft (7) is installed inside the conveying and crushing chamber (5), and the first servo motor (8) is installed outside the conveying and crushing chamber (5). One end of the rotating shaft (7) extends to the outside of the conveying and crushing chamber (5) and is keyed to the power output end of the first servo motor (8).

4. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 3, characterized in that: The conveying and crushing assembly also includes a spiral blade (9) and a crushing knife (10). The spiral blade (9) and the crushing knife (10) are sequentially sleeved on the outer surface of the rotating shaft (7) along the axial direction of the rotating shaft (7), and the crushing knife (10) is close to the discharge end of the conveying and crushing chamber (5).

5. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 2, characterized in that: The metering and feeding assembly includes a first mounting frame (12), which is mounted on top of the second bracket (4) and located directly below the discharge pipe (11). The first mounting frame (12) has a connecting plate (13) inside. The surface of the connecting plate (13) has a through hole that matches the discharge port of the discharge pipe (11) and the through hole is located directly below the discharge pipe (11). A material pipe baffle (16) is fixedly connected to the side of the connecting plate (13) near the conveying and crushing assembly. Limiting sliders (14) are fixedly connected to both sides of the connecting plate (13) and the material pipe baffle (16). A limiting groove (15) that matches the limiting slider (14) is opened on the inner wall of the first mounting frame (12). The limiting slider (14) is slidably connected inside the limiting groove (15).

6. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 5, characterized in that: The metering and feeding assembly also includes a metering tube (17), which is detachably connected to the bottom of the connecting plate (13) and the feed inlet is adapted to the through hole of the connecting plate (13).

7. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 6, characterized in that: The metering and feeding assembly also includes a connecting rod (19), which is fixedly connected to the side of the metering tube (17) near the material tube baffle (16). The bottom of the connecting rod (19) is hinged to a metering tube discharge baffle (21) that is compatible with the metering tube (17) by a pin. An electric cylinder (20) is provided below the first mounting frame (12). The working end of the electric cylinder (20) is fixedly connected to the side of the connecting rod (19) away from the metering tube (17). An L-shaped baffle (18) is slidably provided on one side of the first mounting frame (12). The bottom baffle end of the L-shaped baffle (18) abuts against the lower surface of the metering tube discharge baffle (21).

8. The anti-caking and feeding device for epoxy encapsulating material raw material weighing according to claim 7, characterized in that: The metering and feeding assembly also includes a second mounting bracket (22), which is vertically arranged on the side of the L-shaped baffle (18) away from the discharge pipe (11). A threaded rod (23) is rotatably installed inside the second mounting bracket (22), and a second servo motor (24) is installed on the outside of the second mounting bracket (22). One end of the threaded rod (23) extends rotatably to the outside of the second mounting bracket (22) and is keyed to the power output end of the second servo motor (24). A moving block (25) is threaded onto the surface of the threaded rod (23), and the moving block (25) is fixedly connected to the side of the L-shaped baffle (18) away from the connecting plate (13).

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