Epoxy molding compound screening device

Abstract

The utility model provides an epoxy molding compound screening and filtering device. Relates to the technical field of material screening. The epoxy molding compound screening and filtering device comprises a supporting base and a portal frame fixedly installed at the top of the supporting base, a screening and filtering frame is fixedly installed on one side of the portal frame, two side sliding plates are arranged in the screening and filtering frame, and the side sliding plates make contact with the inner wall of the screening and filtering frame. The same screening and filtering plate is fixedly mounted on the sides, close to each other, of the two side sliding plates, sliding connection arms are fixedly mounted on the sides, away from each other, of the two side sliding plates correspondingly, the sides, away from each other, of the two sliding connection arms extend out of the two sides of the screening and filtering frame correspondingly, and the two sliding connection arms are slidably connected with the two sides of the screening and filtering frame correspondingly; and tooth columns are fixedly mounted on the sides, away from each other, of the two sliding connection arms. The epoxy molding compound screening device provided by the utility model has the advantages of anti-blocking function, better dredging effect and higher dredging speed.

Description

Technical Field

[0001] This utility model relates to the field of material screening technology, and in particular to an epoxy molding compound screening device. Background Technology

[0002] Epoxy molding compound is a powdered molding compound made by using epoxy resin as the matrix resin, high-performance phenolic resin as the curing agent, adding silica powder and other fillers, and adding various additives. This type of plastic is generally in the form of solid granules. In the production process of epoxy molding compound, in order to screen epoxy molding compound of different particle sizes for classification purposes, it is screened by special screening equipment.

[0003] However, it has been found that in the use of common filtration equipment, the filter plates used for filtration are prone to having their filter holes blocked by the unevenly shaped epoxy molding compound after a long period of use. In the later stages, it is necessary to manually remove the blockage using a high-pressure blowing tool or manual vibration, which is a cumbersome process and inconvenient to use.

[0004] Therefore, it is necessary to provide a new epoxy molding compound screening device to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an epoxy molding compound filter device with anti-clogging function, good unblocking effect and fast unblocking speed.

[0006] To solve the above-mentioned technical problems, the epoxy molding compound screening device provided by this utility model includes: a support base and a gantry frame fixedly installed on its top. A screening frame is fixedly installed on one side of the gantry frame. Two side slides are provided inside the screening frame, and the side slides are in contact with the inner wall of the screening frame. A single screening plate is fixedly installed on the side of the two side slides that are close to each other. Sliding arms are fixedly installed on the side of the two side slides that are far apart from each other. The side of the two sliding arms that are far apart from each other extends to both sides of the screening frame, and the two sliding arms are slidably connected to both sides of the screening frame. Toothed columns are fixedly installed on the side of the two sliding arms that are far apart from each other. Back plates are fixedly installed on both outer walls of the screening frame. A linkage shaft is rotatably installed on both back plates. Each of the aforementioned linkage shafts is fixedly fitted with a toothed gear, and the two toothed gears are respectively adapted to the two toothed columns. A bearing bracket is fixedly installed on the top of the support base. A transverse push screw is rotatably installed inside the bearing bracket. A moving plate is threaded onto the transverse push screw. A first loading platform is fixedly installed on the top of the moving plate. The first loading platform passes through the gantry frame. A first receiving box is provided on the first loading platform. Two first telescopic cylinders are fixedly installed at the bottom of the first loading platform. The output shafts of the two first telescopic cylinders pass through the first loading platform and are slidably connected to it. The same connecting mother plate is fixedly installed on the output shafts of the two first telescopic cylinders. Multiple top plugs are fixedly installed on the top of the connecting mother plate. The multiple top plugs are adapted to the corresponding filter holes on the screen plate.

[0007] Preferably, support seats are fixedly installed on both outer walls of the filter frame, the tops of the two support seats are in contact with the two sliding arms respectively, and columns are fixedly installed on the tops of the two support seats respectively. The two columns pass through the two sliding arms and are slidably connected to the corresponding sliding arms. Shuttle openings are provided on both outer walls of the filter frame, the two sliding arms pass through the two shuttle openings respectively, and the two side slides are adapted to the two shuttle openings respectively.

[0008] Preferably, a first servo motor is fixedly installed on each of the two back plates, and the output shafts of the two first servo motors are respectively fixedly connected to one end of the two linkage shafts. A second servo motor is fixedly installed on one outer wall of the support bracket, and the output shaft of the second servo motor is fixedly connected to one end of the transverse push screw.

[0009] Preferably, a hopper is fixedly installed on the top of the filter frame, a first placement groove is provided on the top of the first platform, and the first receiving box is located in the first placement groove.

[0010] Preferably, the filter frame has an installation port on one side and a discharge port on the symmetrical side. A pusher plate is provided in the installation port, and a baffle plate is provided in the discharge port. A second telescopic cylinder is fixedly installed on the outer wall of one side of the filter frame. The output shaft of the second telescopic cylinder extends into the discharge port and is fixedly connected to the baffle plate. A rodless cylinder is fixedly installed on the outer wall of one side of the filter frame. A connecting rod is fixedly installed on the slider of the rodless cylinder. One end of the connecting rod extends into the installation port and is fixedly connected to the pusher plate.

[0011] Preferably, a guide inclined plate is fixedly installed on one side of the outer wall of the filter frame, and the top edge of the guide inclined plate is located below the discharge port. A second platform is fixedly installed on the top of the support base. A second placement groove is opened on the top of the second platform, and a second receiving box is provided in the second placement groove. The second receiving box is located below the guide inclined plate.

[0012] Preferably, two side baffles are fixedly installed on one outer wall of the filter frame, and the sides of the two side baffles that are close to each other are in contact with the guide inclined plate.

[0013] Compared with related technologies, the epoxy molding compound screening device provided by this utility model has the following beneficial effects:

[0014] This invention provides an epoxy molding compound screening device. Through the intermittent meshing of the toothed gears and toothed pillars, the screening plate can reciprocate upward and downward, thereby screening the epoxy molding compound accumulated on the screening plate. Furthermore, the top stopper rod, through the extension of the output shaft of the first telescopic cylinder, can push out blockages in the filter holes of the screening plate, achieving a quick and thorough unblocking effect and facilitating subsequent screening. In addition, when not in use, the top stopper rod remains inserted in the filter holes, providing a protective filling and preventing airborne dust and other particles from accumulating in the filter holes due to moisture and causing blockage. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the epoxy molding compound filtration device provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the connecting mother plate and the top plug rod in this utility model;

[0018] Figure 4 This is a cross-sectional view of the filter frame in this utility model.

[0019] Figure 5 This is a schematic diagram showing the opening of the mounting port and the discharge port in this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between the side sliding plate and the filter plate in this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the pusher plate and the connecting rod in this utility model;

[0022] Figure 8 This is a schematic diagram of the connection structure between the second telescopic cylinder and the baffle plate in this utility model;

[0023] The following are the labeling elements in the diagram: 1. Support base; 2. Gantry frame; 3. Screen frame; 4. Side slide plate; 5. Screen plate; 6. Support seat; 7. Sliding arm; 8. Toothed column; 9. Back plate; 10. Linkage shaft; 11. Toothed gear; 12. Bearing bracket; 13. Horizontal push screw; 14. Moving plate; 15. First loading platform; 16. First receiving box; 17. First telescopic cylinder; 18. Connecting mother plate; 19. Top stopper rod; 20. Mounting port; 21. Discharge port; 22. Pusher plate; 23. Baffle plate; 24. Second telescopic cylinder; 25. Rodless cylinder; 26. Connecting rod; 27. Second loading platform; 28. Second receiving box. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figure 1-8The epoxy molding compound screening device includes: a support base 1 and a gantry frame 2 fixedly installed on its top. A screening frame 3 is fixedly installed on one side of the gantry frame 2, and a hopper is fixedly installed on the top of the screening frame 3. Two side slides 4 are provided inside the screening frame 3, and the side slides 4 contact the inner wall of the screening frame 3. A single screening plate 5 is fixedly installed on the side of the two side slides 4 that are close to each other. Sliding arms 7 are fixedly installed on the side of the two side slides 4 that are far apart from each other. The two sliding arms 7 extend to the outer sides of the screening frame 3 on the far sides, and are slidably connected to the two sides of the screening frame 3. The filter frame 3 is fixedly equipped with toothed pillars 8, and back plates 9 are fixedly installed on both outer walls of the filter frame 3. A linkage shaft 10 is rotatably mounted on each of the two back plates 9, and a toothed gear 11 is fixedly fitted on each of the two linkage shafts 10. The two toothed gears 11 are respectively adapted to the two toothed pillars 8. In the initial state, the teeth above the notches in the two toothed gears 11 abut against the top teeth of the toothed pillars 8, thereby preventing the filter plate 5 from naturally rising and shaking. At the same time, it also provides a fixed condition for the top stopper 19 to rise and clear the filter, ensuring that the top stopper 19 can be completely inserted into the filter holes of the filter plate 5. In addition, a first servo motor is fixedly installed on each of the two back plates 9. The output shafts of the two first servo motors are fixedly connected to one end of the two linkage shafts 10, respectively, so as to drive the toothed gear 11 to rotate. A bearing bracket 12 is fixedly installed on the top of the support base 1, and a transverse push screw 13 is rotatably installed inside it. A second servo motor is fixedly installed on one side of the outer wall of the bearing bracket 12, and its output shaft is fixedly connected to one end of the transverse push screw 13. A movable plate 14 is threaded onto the transverse push screw 13. Two crossbeams are fixed inside the bearing bracket 12, and both crossbeams pass through the movable plate 14 and are slidably connected to it. A first platform 15 is fixedly installed on the top of the movable plate 14, and the first platform 15 passes through the gantry 2. A first placement slot is provided on the top of the first platform 15, and a first receiving box 16 is placed in the first placement slot. The first receiving box 16 is located directly below the screen frame 3 in the initial state, so that the epoxy molding compound that is screened can be contained. Two first telescopic cylinders 17 are fixedly installed at the bottom of the first platform 15. The output shafts of the two first telescopic cylinders 17 pass through the first platform 15 and are slidably connected to it. The same connecting mother plate 18 is fixedly installed on the output shafts of the two first telescopic cylinders 17. Multiple top plugs 19 are fixedly installed on the top of the connecting mother plate 18. The multiple top plugs 19 are all adapted to the corresponding filter holes on the screen plate 5.

[0026] In the above method, in order to ensure that the sliding arm 7 can only move in a straight line, support seats 6 are fixedly installed on both outer walls of the screen frame 3. The tops of the two support seats 6 are in contact with the two sliding arms 7 respectively. The tops of the two support seats 6 are fixedly installed with columns. The two columns pass through the two sliding arms 7 respectively and are slidably connected to the corresponding sliding arms 7. Shuttle openings are opened on both outer walls of the screen frame 3. The two sliding arms 7 pass through the two shuttle openings respectively, and the two side slide plates 4 are adapted to the two shuttle openings respectively.

[0027] In this method, in order to discharge the remaining epoxy molding compound on the filter plate 5 and the epoxy molding compound ejected by the top stopper 19, an installation port 20 is provided on one side of the filter frame 3, and a discharge port 21 is provided on the symmetrical side. A pusher plate 22 is provided in the installation port 20, and a baffle plate 23 is provided in the discharge port 21. A second telescopic cylinder 24 is fixedly installed on one side of the outer wall of the filter frame 3. Its output shaft extends into the discharge port 21 and is fixedly connected to the baffle plate 23. A rodless cylinder 25 is fixedly installed on one side of the outer wall of the filter frame 3. A connecting rod 26 is fixedly installed on the slider of the rodless cylinder 25. One end of the connecting rod 26 extends into the installation port 20 and is fixedly connected to the pusher plate 22. First, the baffle plate 23 is brought out by the second telescopic cylinder 24, and then the epoxy molding compound is pushed out by the rodless cylinder 25 and the pusher plate 22.

[0028] In addition, in order to collect the discharged material completely, a guide sloping plate is fixedly installed on one side of the outer wall of the screen frame 3. The top edge of the guide sloping plate is located below the discharge port 21. A second platform 27 is fixedly installed on the top of the support base 1. A second placement groove is opened on the top of the platform. A second receiving box 28 is provided in the second placement groove. The second receiving box 28 is located below the guide sloping plate. Furthermore, two side baffles are fixedly installed on one side of the outer wall of the screen frame 3. The side of the two side baffles that are close to each other are in contact with the guide sloping plate.

[0029] The working principle of the epoxy molding compound sieve filter device provided by this utility model is as follows:

[0030] Initially, the output shafts of the two second telescopic cylinders 24 are in the extended state.

[0031] When screening epoxy molding compound is required, a portion of the epoxy molding compound is first poured into the filter frame 3 through the hopper and falls onto the filter plate 5. Then, two first servo motors are activated, causing the two linkage shafts 10 to rotate clockwise and counterclockwise, respectively. The two linkage shafts 10 rotate outwards from each other. When the teeth of the two toothed gears 11 contact the teeth on the corresponding toothed pillars 8, they mesh, lifting the two toothed pillars 8, and subsequently the sliding arm 7 and the filter plate 5. This continues until the teeth on the toothed gears 11 separate from the teeth on the toothed pillars 8. Under gravity, the filter plate 5 falls freely, ultimately causing... The two sliding arms 7 fall heavily onto the support base 6, causing the epoxy molding compound accumulated on the filter plate 5 to vibrate. During the vibration, the epoxy molding compound smaller than the filter holes of the filter plate 5 will fall and enter the first receiving box 16. At this time, the first servo motor continues to run until the teeth of the toothed gear 11 mesh with the teeth on the toothed column 8 again, which will lift the filter plate 5 up again, and then let it fall freely. This process is repeated so that the filter plate 5 can rise and fall continuously, thus filtering the epoxy molding compound accumulated on the filter plate 5 until the filtering is completed. Then the toothed gear 11 is adjusted to the initial state and puts it in contact with the toothed column 8.

[0032] Subsequently, the second servo motor is started in the forward direction, and its output shaft drives the horizontal push screw 13 to rotate. The moving plate 14 on it moves the first platform 15 horizontally, eventually bringing the first receiving box 16 out from under the screen frame 3 and bringing the connecting mother plate 18 directly under the screen frame 3. Then, the output shafts of the two first telescopic cylinders 17 are activated to extend, bringing multiple top plug rods 19 into the corresponding filter holes on the screen plate 5, thereby clearing the filter holes containing blockages. After the rod 19 is inserted into the filter hole, its top end face is flush with the top end face of the filter plate 5. Then, the output shaft of the second telescopic cylinder 24 is retracted to bring the baffle plate 23 out of the discharge port 21. Then, the rodless cylinder 25 is activated. Under the linkage of the connecting rod 26, the pusher plate 22 pushes the epoxy molding plastic remaining on the filter plate 5 and the epoxy molding plastic ejected from the filter hole toward the discharge port 21. Finally, under the guidance of the guide plate, it falls into the second receiving box 28.

[0033] If the next batch of epoxy molding compound needs to be screened, the above steps can be reversed to bring each component back to its original position and continue screening. If screening is not required, this state can be maintained so that the top stopper 19 is continuously inserted into the filter holes of the filter plate 5, thus forming a filling protection to prevent foreign impurities from gradually filling the filter holes during long-term use.

[0034] Compared with related technologies, the epoxy molding compound screening device provided by this utility model has the following beneficial effects:

[0035] This utility model provides an epoxy molding compound screening device. Through the intermittent meshing between the toothed gear 11 and the toothed column 8, the screen plate 5 can form a reciprocating motion of rising and falling, thereby screening the epoxy molding compound accumulated on the screen plate 5. Furthermore, through the provided top stopper 19, the blockage in the filter hole of the screen plate 5 can be pushed out by the extension of the output shaft of the first telescopic cylinder 17, thereby quickly and thoroughly unblocking the filter and facilitating the next screening use. In addition, when not in use, the top stopper 19 can always be inserted into the filter hole, thereby forming a filling protection and preventing dust and floating particles in the air from staying in the filter hole of the screen plate 5 due to moisture and causing blockage.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An epoxy molding compound screening device, comprising a support base and a gantry frame fixedly mounted on top thereof, characterized in that, A filter frame is fixedly installed on one side of the gantry frame. Two side slides are provided inside the filter frame, and the side slides contact the inner wall of the filter frame. A single filter plate is fixedly installed on the side of the two side slides that are close to each other. Sliding arms are fixedly installed on the side of the two side slides that are far apart from each other. The far-away sides of the two sliding arms extend to the outer sides of the filter frame and are slidably connected to the two sides of the filter frame. Toothed posts are fixedly installed on the far-away sides of the two sliding arms. Back plates are fixedly installed on the outer walls of both sides of the filter frame. A linkage shaft is rotatably installed on each of the two back plates. A toothed gear is fixedly fitted on each of the two linkage shafts. Each of the two toothed columns is adapted to the support base. A bearing bracket is fixedly installed on the top of the support base. A transverse push screw is rotatably installed inside the bearing bracket. A moving plate is threaded on the transverse push screw. A first loading platform is fixedly installed on the top of the moving plate. The first loading platform passes through the gantry frame. A first receiving box is provided on the first loading platform. Two first telescopic cylinders are fixedly installed at the bottom of the first loading platform. The output shafts of the two first telescopic cylinders pass through the first loading platform and are slidably connected to it. The same connecting mother plate is fixedly installed on the output shafts of the two first telescopic cylinders. Multiple top plugs are fixedly installed on the top of the connecting mother plate. The multiple top plugs are adapted to the corresponding filter holes on the screen plate.

2. The epoxy molding compound screening device according to claim 1, characterized in that, Support seats are fixedly installed on both outer walls of the filter frame. The tops of the two support seats are in contact with the two sliding arms respectively. A column is fixedly installed on the top of the two support seats. The two columns pass through the two sliding arms and are slidably connected to the corresponding sliding arms. Shuttle openings are provided on both outer walls of the filter frame. The two sliding arms pass through the two shuttle openings respectively, and the two side slides are adapted to the two shuttle openings respectively.

3. The epoxy molding compound screening device according to claim 1, characterized in that, A first servo motor is fixedly installed on each of the two back plates. The output shafts of the two first servo motors are respectively fixedly connected to one end of the two linkage shafts. A second servo motor is fixedly installed on one outer wall of the support bracket. The output shaft of the second servo motor is fixedly connected to one end of the horizontal push screw.

4. The epoxy molding compound screening device according to claim 1, characterized in that, A hopper is fixedly installed on the top of the filter frame, and a first placement slot is provided on the top of the first platform, with the first receiving box located in the first placement slot.

5. The epoxy molding compound screening device according to claim 1, characterized in that, The filter frame has an installation port on one side and a discharge port on the symmetrical side. A pusher plate is provided in the installation port, and a baffle plate is provided in the discharge port. A second telescopic cylinder is fixedly installed on the outer wall of one side of the filter frame. The output shaft of the second telescopic cylinder extends into the discharge port and is fixedly connected to the baffle plate. A rodless cylinder is fixedly installed on the outer wall of one side of the filter frame. A connecting rod is fixedly installed on the slider of the rodless cylinder. One end of the connecting rod extends into the installation port and is fixedly connected to the pusher plate.

6. The epoxy molding compound screening device according to claim 5, characterized in that, A guide plate is fixedly installed on one side of the outer wall of the filter frame. The top edge of the guide plate is located below the discharge port. A second platform is fixedly installed on the top of the support base. A second placement groove is opened on the top of the second platform. A second receiving box is provided in the second placement groove. The second receiving box is located below the guide plate.

7. The epoxy molding compound screening device according to claim 6, characterized in that, Two side baffles are fixedly installed on one outer wall of the filter frame, and the sides of the two side baffles that are close to each other are in contact with the guide inclined plate.

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