Epoxy molding material screening device

Abstract

The utility model relates to the technical field of epoxy molding compound screening technology, and disclose an epoxy molding compound sieve filter device, including the shell, the inside of shell is provided with the sieve filter component for sieving, the sieve filter device includes the sieve cylinder of setting in the shell inside, the bottom plate is provided below the shell, is provided with the bearing assembly between the shell and bottom plate. This kind of epoxy molding compound sieve filter device, by setting up driving motor can drive sieve cylinder to rotate and then carry out sieve filter operation to the material in the sieve cylinder, opens the arc -shaped door after sieve filter is completed and will waste material discharge, closes arc -shaped door and continues to drive sieve cylinder to rotate through water injection pipe water injection after, completes the cleaning of the material in the sieve cylinder, then through the air pipe can be hot air into to the inside of shell, and then cooperate the rotation of sieve cylinder and carry out drying to the material in the sieve cylinder, realize the process of sieve filter-cleaning-drying, improve the recovery efficiency and recovery quality.

Description

Technical Field

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

[0002] Epoxy molding compound is a material used in semiconductor chip packaging technology. It is a powdered molding compound made by mixing epoxy resin as the matrix resin, high-performance phenolic resin as the curing agent, silicon micro powder and other fillers, and various additives. In order to improve the utilization rate of epoxy molding compound, waste epoxy molding compound is recycled and can be used as a filler to blend with thermoplastic plastics to prepare composite materials.

[0003] An existing patent (publication number: CN216658560U) discloses an epoxy molding compound screening device, including a main body box, a screening mechanism, and a pretreatment mechanism. The screening mechanism includes a connecting cylinder, a rotating cylinder, a motor, a rotating rod, a first bevel gear, a support rod, a mounting rod, a connecting rod, a connecting ball, and a transmission disc. The connecting cylinder is inclinedly arranged on the right side wall of the inner cavity of the main body box. One end of the rotating cylinder is rotatably connected to the inner cavity of the connecting cylinder through a bearing. The motor is installed on the left side wall of the inner cavity of the main body box. The rotating rod is fixedly connected to the output end of the motor. The support rod is fixedly connected to the end of the rotating cylinder away from the connecting cylinder. The first bevel gear is installed on the rotating rod, and the support rod is also equipped with a first bevel gear, and the two sets of first bevel gears mesh with each other.

[0004] Although the aforementioned patent uses a rotating drum to filter epoxy molding compound powder, and the connecting ball periodically impacts the filter screen during rotation, making the screen less prone to clogging and improving the filtration effect, it lacks a cleaning process for the epoxy molding compound. The recovered epoxy molding compound has dust and impurities on its surface, and simple filtration is insufficient to completely remove the dust. The material must be removed and placed in a cleaning device for additional cleaning, which affects the overall recycling efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an epoxy molding compound screening device that has the advantage of cleaning materials after screening, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an epoxy molding compound screening device, comprising a housing, wherein a screening assembly for screening is disposed inside the housing, the screening device includes a screen cylinder disposed inside the housing, a bottom plate is disposed below the housing, a supporting assembly is disposed between the housing and the bottom plate, a water inlet pipe for water intake is provided at the top of the housing, a feed pipe for material intake is installed on the right side of the housing, and a fan-shaped chamber door and an arc-shaped chamber door are hinged to the left side of the housing.

[0007] Furthermore, the inner wall of the outer shell is provided with multiple sets of support seats, and the inner side of the support seats is rotatably connected to a bearing wheel. The screen cylinder is disposed between the bearing wheels, and the bearing wheels are in contact with the screen cylinder.

[0008] The above solution uses load-bearing wheels to support the screen cylinder and maintain its stability.

[0009] Furthermore, the feed pipe extends through the screen cylinder, and the feed pipe is coaxial with the axis of the screen cylinder.

[0010] The above solution ensures stable feeding through the feed pipe while the screen cylinder rotates.

[0011] Furthermore, a toothed ring is fixed to the right end of the screen cylinder, a drive motor is installed on the right side of the outer casing, and a gear is fixed to the output end of the drive motor, the gear meshing with the toothed ring.

[0012] The above scheme allows the drive motor to rotate the gears, which in turn rotate the gear ring and thus the screen cylinder.

[0013] Furthermore, the load-bearing assembly includes a base fixed to the upper surface of the base plate, the outer shell is hinged to the base, and the load-bearing assembly also includes a hydraulic cylinder, one end of which is hinged to the base plate and the other end of which is hinged to the outer shell.

[0014] The above solution allows the right end of the outer casing to be raised and lowered via a hydraulic cylinder. Combined with the hinge between the left end of the outer casing and the base, the right end of the outer casing is stably lifted.

[0015] Furthermore, the left end of the screen cylinder is sealed to the outer shell by a sealing sleeve, the fan-shaped chamber door is connected to the screen cylinder, and the arc-shaped chamber door is connected to the annular area between the screen cylinder and the outer shell.

[0016] With the above scheme, the material inside the screen cylinder can be discharged by opening the fan-shaped door, and the material in the annular area between the screen cylinder and the outer shell can be discharged by opening the arc-shaped door.

[0017] Furthermore, the upper surface of the base plate is provided with a support seat corresponding to the outer shell, an air inlet pipe is installed on the side of the outer shell, a solenoid valve is installed at the end of the air inlet pipe, and the air inlet pipe is connected to the output end of an external hot air blower.

[0018] The above solution allows hot air to be introduced into the interior of the outer shell through the air inlet pipe, which, in conjunction with the rotation of the screen cylinder, dries the material inside the screen cylinder.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] This epoxy molding compound screening device uses a drive motor to rotate the screen cylinder, thereby screening the material inside. After screening, the arc-shaped door is opened to discharge the waste material. After closing the arc-shaped door, water is injected through the inlet pipe, and the drive motor continues to rotate the screen cylinder to clean the material inside. After cleaning, the arc-shaped door is opened to discharge the wastewater. After closing the arc-shaped door, an external hot air fan is started, and hot air is introduced into the interior of the casing through the air inlet pipe. This, combined with the rotation of the screen cylinder, dries the material inside, realizing a screening-cleaning-drying process, which improves recycling efficiency and recycling quality. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present application;

[0022] Figure 2 This is a sectional view of the overall sieve cylinder of this application.

[0023] Figure 3 This is a sectional view of the overall casing of this application from a side view;

[0024] Figure 4 This is a side view of the overall fan-shaped door of this application.

[0025] In the picture:

[0026] 1. Outer shell;

[0027] 2. Screening assembly; 201. Screen cylinder; 202. Support base; 203. Bearing wheel; 204. Gear ring; 205. Drive motor; 206. Gear;

[0028] 3. Base plate;

[0029] 4. Load-bearing components; 401. Base; 402. Hydraulic cylinder; 403. Load-bearing seat;

[0030] 5. Water inlet pipe; 6. Feed inlet pipe; 7. Fan-shaped bin door; 8. Arc-shaped bin door; 9. Air inlet pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 An epoxy molding compound screening device in this embodiment includes a housing 1, a screening assembly 2 for screening is provided inside the housing 1, the screening device includes a screen cylinder 201 disposed inside the housing 1, a bottom plate 3 is disposed below the housing 1, a bearing assembly 4 is disposed between the housing 1 and the bottom plate 3, a water inlet pipe 5 for water inlet is provided at the top of the housing 1, a feed pipe 6 for material inlet is installed on the right side of the housing 1, and a fan-shaped chamber door 7 and an arc-shaped chamber door 8 are hinged to the left side of the housing 1.

[0033] Please see Figure 2 , Figure 3 and Figure 4 The inner wall of the outer shell 1 is provided with multiple sets of support seats 202. The inner side of the support seat 202 is rotatably connected with a bearing wheel 203. The screen cylinder 201 is disposed between the bearing wheels 203. The bearing wheels 203 are in contact with the screen cylinder 201. The bearing wheels 203 can support the screen cylinder 201 and maintain the stability of the screen cylinder 201. The feed pipe 6 passes through the screen cylinder 201 and is coaxial with the axis of the screen cylinder 201, so that the feed pipe 6 can stably feed material during the rotation of the screen cylinder 201.

[0034] Please see Figure 2 , Figure 3 and Figure 4 A gear ring 204 is fixed to the right end of the screen cylinder 201. A drive motor 205 is installed on the right side of the outer shell 1. A gear 206 is fixed to the output end of the drive motor 205. The gear 206 meshes with the gear ring 204. The drive motor 205 can drive the gear 206 to rotate, which in turn drives the gear ring 204 to rotate, thereby driving the screen cylinder 201 to rotate. The bearing assembly 4 includes a base 401 fixed to the upper surface of the base plate 3. The outer shell 1 is hinged to the base 401. The bearing assembly 4 also includes a hydraulic cylinder 402. One end of the hydraulic cylinder 402 is hinged to the base plate 3, and the other end of the hydraulic cylinder 402 is hinged to the outer shell 1. The hydraulic cylinder 402 can drive the right end of the outer shell 1 to rise and fall. With the hinge between the left end of the outer shell 1 and the base 401, the right end of the outer shell 1 is stably lifted.

[0035] Please see Figure 2 , Figure 3 and Figure 4The left end of the screen cylinder 201 is sealed to the outer shell 1 by a sealing sleeve. The fan-shaped door 7 is connected to the screen cylinder 201, and the arc-shaped door 8 is connected to the annular area between the screen cylinder 201 and the outer shell 1. By opening the fan-shaped door 7, the material inside the screen cylinder 201 can be discharged. By opening the arc-shaped door 8, the material in the annular area between the screen cylinder 201 and the outer shell 1 can be discharged. The upper surface of the bottom plate 3 is provided with a bearing seat 403 corresponding to the outer shell 1. An air inlet pipe 9 is installed on the side of the outer shell 1. A solenoid valve is installed at the end of the air inlet pipe 9. The air inlet pipe 9 is connected to the output end of an external hot air blower. Hot air can be introduced into the interior of the outer shell 1 through the air inlet pipe 9, thereby drying the material inside the screen cylinder 201 in conjunction with the rotation of the screen cylinder 201.

[0036] In this embodiment, an epoxy molding compound screening device is provided. A drive motor 205 drives the screen cylinder 201 to rotate, thereby screening the material inside the screen cylinder 201. After screening, the arc-shaped chamber door 8 is opened to discharge the waste material. After closing the arc-shaped chamber door 8, water is injected through the water inlet pipe 5, and the drive motor 205 continues to drive the screen cylinder 201 to rotate, completing the cleaning of the material inside the screen cylinder 201. After cleaning, the arc-shaped chamber door 8 is opened to discharge the wastewater. After closing the arc-shaped chamber door 8, the external hot air fan is started. Hot air is introduced into the interior of the outer shell 1 through the air inlet pipe 9, thereby drying the material inside the screen cylinder 201 in conjunction with the rotation of the screen cylinder 201. This realizes the screening-cleaning-drying process, improving the recycling efficiency and recycling quality.

[0037] It should be noted that before the drying operation, the arc-shaped chamber door 8 should be opened to discharge the wastewater. At this time, the drive motor 205 should continue to be turned on so that the screen cylinder 201 rotates to centrifuge and dehydrate the material inside the screen cylinder 201.

[0038] The working principle of the above embodiment is as follows: the material is fed into the screen cylinder 201 through the feed pipe 6, and the drive motor 205 drives the gear 206 to rotate, which in turn drives the gear ring 204 to rotate. The rotation of the gear ring 204 drives the screen cylinder 201 to rotate. The rotation of the screen cylinder 201 completes the screening operation of the material. After screening, the arc-shaped chamber door 8 is opened to discharge the waste material. The arc-shaped chamber door 8 is closed, and water is injected through the water inlet pipe 5. The drive motor 205 continues to drive the screen cylinder 201 to rotate, completing the cleaning of the material inside the screen cylinder 201. After cleaning, the arc-shaped chamber door 8 is opened to discharge the wastewater.

[0039] At this time, the screen cylinder 201 rotates to centrifuge and dehydrate the material inside the screen cylinder 201. The arc-shaped chamber door 8 is closed and the external hot air fan is started. Hot air can be introduced into the interior of the outer shell 1 through the air inlet pipe 9, which, together with the rotation of the screen cylinder 201, dries the material inside the screen cylinder 201, realizing the process of screening-washing-drying, and improving the recycling efficiency and recycling quality.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An epoxy molding compound screening device comprising a housing (1), characterized in that: The inside of the shell (1) is provided with a screening assembly (2) for screening, the screening device comprises a screen cylinder (201) arranged in the inside of the shell (1), the lower part of the shell (1) is provided with a bottom plate (3), a bearing assembly (4) is arranged between the shell (1) and the bottom plate (3), the top end of the shell (1) is provided with a water inlet pipe (5) for water inlet, the right side of the shell (1) is provided with a feeding pipe (6) for feeding, and the left side of the shell (1) is hingedly provided with a fan-shaped door (7) and an arc-shaped door (8).

2. An epoxy molding compound screening device according to claim 1, characterized in that: The inner wall of the shell (1) is provided with a plurality of support seats (202), the inner side of the support seat (202) is rotatably connected with a bearing wheel (203), and the screen cylinder (201) is arranged between the bearing wheels (203) and in contact with the screen cylinder (201).

3. An epoxy molding compound screening device as claimed in claim 1, wherein: The feeding pipe (6) penetrates the screen cylinder (201), and the feeding pipe (6) is coaxial with the axis of the screen cylinder (201).

4. The epoxy molding compound screening device of claim 1, wherein: The right end of the screen cylinder (201) is fixedly provided with a tooth ring (204), the right side of the shell (1) is provided with a driving motor (205), the output end of the driving motor (205) is fixedly provided with a gear (206), and the gear (206) is engaged with the tooth ring (204).

5. The epoxy molding compound screening device of claim 1, wherein: The bearing assembly (4) comprises a base (401) fixedly arranged on the upper surface of the bottom plate (3), the shell (1) is hingedly connected with the base (401), and the bearing assembly (4) further comprises a hydraulic cylinder (402), one end of the hydraulic cylinder (402) is hingedly connected with the bottom plate (3), and the other end of the hydraulic cylinder (402) is hingedly connected with the shell (1).

6. An epoxy molding compound screening device as claimed in claim 1, wherein: The left end of the screen cylinder (201) is sealed with the shell (1) through a sealing sleeve, the fan-shaped door (7) is communicated with the screen cylinder (201), and the arc-shaped door (8) is communicated with the annular area between the screen cylinder (201) and the shell (1).

7. The epoxy molding compound screening device of claim 1, wherein: The upper surface of the bottom plate (3) is provided with a bearing seat (403) corresponding to the shell (1), the side of the shell (1) is provided with an air inlet pipe (9), the end of the air inlet pipe (9) is provided with an electromagnetic valve, and the air inlet pipe (9) is communicated with the output end of the hot air blower outside.

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