Pelletizer with high processing efficiency for PCB (Printed Circuit Board) processing

Abstract

The utility model discloses a pelletizer for PCB (printed circuit board) processing, which is high in processing efficiency and comprises a pelletizer, a feed port and an extrusion port, the feed port and the extrusion port are respectively positioned on the outer surfaces of two ends of the pelletizer, the outer surface of the extrusion port is fixedly connected with a filter cartridge, pelletized materials extruded by the pelletizer can enter the filter cartridge, and the pelletized materials enter the filter cartridge. Then the driving motor can enable the first spiral blade to stir and push the materials preliminarily entering the filter cartridge, when the materials pass through the filter screen plate, the materials can be extruded along with pushing force to penetrate through meshes of the filter screen plate, and dust and impurity particles can be blocked on one side face of the filter screen plate in the process; when the material passes through the filter screen plate and enters the position of the second spiral blade, the material is stirred and mixed again and is led out from the port of the filter cartridge, so that the impurity content of the material extruded by the granulator is reduced, and the product processing quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to a granulator for PCB board processing with high processing efficiency. Background Art

[0002] The PCB board environmental protection granulator is an advanced device specifically used to process PCB (printed circuit board) waste and convert it into reusable particles. This granulator has many remarkable advantages. Firstly, it plays an important role in environmental protection. By processing and reprocessing the waste PCB boards, it reduces the pollution and harm of electronic waste to the environment. Secondly, the working efficiency of the PCB board environmental protection granulator is relatively high, and it can quickly convert a large amount of PCB board waste into uniform particles, improving the speed and scale of resource recovery.

[0003] In the field of PCB board processing, during the process of converting PCB board waste and scraps into reusable particulate materials by the granulator, various impurities often inevitably exist in the extruded materials. The presence of these impurities has a significant negative impact on the subsequent processing quality. General metal impurities may cause wear and damage to the mold during subsequent injection molding or extrusion molding processes, shortening the service life of the mold. Impurities such as dust and fibers may form bubbles or uneven structures during the melting process, affecting the physical and electrical properties of the final product. Incompletely decomposed plastic components will reduce the purity and consistency of the particles, resulting in a decline in properties such as the mechanical strength and chemical corrosion resistance of the product.

[0004] Therefore, a granulator for PCB board processing with high processing efficiency is proposed. Summary of the Utility Model

[0005] In view of the above problems, the utility model provides a granulator for PCB board processing with high processing efficiency to solve the problems raised in the above background art.

[0006] The technical solution of the utility model is as follows:

[0007] A granulator for PCB board processing with high processing efficiency, including a granulator, a feed inlet, and an extrusion outlet. The feed inlet and the extrusion outlet are respectively located on the outer surfaces at both ends of the granulator. A filter cylinder is fixedly connected to the outer surface of the extrusion outlet. Two opposite filter mesh plates are arranged in the middle of the inner wall of the filter cylinder. A first spiral blade is arranged inside the filter cylinder near the extrusion outlet. A connecting shaft is fixedly connected to the surface of the first spiral blade. A second spiral blade is arranged inside the filter cylinder far from the extrusion outlet. A rotating shaft is fixedly connected to the surface of the second spiral blade. The rotating shaft passes through the center of the surface of the filter mesh plate and is connected to the surface of the connecting shaft. A bearing bracket is arranged on the top surface of the filter cylinder far from the extrusion outlet. Bolts are arranged on the surface of the bearing bracket. The bearing bracket is fixedly connected to the surface of the filter cylinder through the bolts. A first bevel gear is fixedly connected to the end of the rotating shaft far from the rotating shaft. A second bevel gear is meshed and connected to the top surface of the first bevel gear. A rotating bolt is fixedly connected to the top surface of the second bevel gear. A motor is arranged at the top end of the rotating bolt.

[0008] The working principle of the above technical solution is as follows:

[0009] Start the motor. The motor drives the second bevel gear to rotate. The rotation of the second bevel gear drives the first bevel gear meshed with it to rotate. The rotation of the first bevel gear causes the rotating shaft to rotate, thereby driving the connecting shaft to rotate, and further causing the first spiral blade and the second spiral blade to start rotating. The material processed by the granulator is extruded from the extrusion outlet and enters one end of the filter cylinder near the extrusion outlet. The rotation of the first spiral blade stirs and pushes the initially entering material. The material is filtered through the filter mesh plate under the action of the driving force, and then reaches the end of the filter cylinder far from the extrusion outlet, where it is stirred and mixed again by the second spiral blade.

[0010] In a further technical solution, two slots are opened on the top surface of the filter cylinder. An installation frame is inserted into the inner wall of the slot. An installation groove is opened on the surface of the installation frame. The filter mesh plate is fixed to the inner wall of the installation groove.

[0011] Through the above technical solution, when using the filter mesh plate, the installation frame can be inserted into the inner wall of the slot. After each use of the filter mesh plate, the installation frame can be taken out to clean the filter mesh plate, improving the long-term effectiveness of the use of the filtering structure.

[0012] In a further technical solution, the filter cartridge includes a stirring cylinder, a pushing cylinder, and a discharge port. The stirring cylinder is fixed to the port surface of the extrusion port. The pushing cylinder is fixed to one end of the stirring cylinder away from the extrusion port. The discharge port is located at the lower edge of the opening at one end of the pushing cylinder away from the stirring cylinder. The bearing bracket is fixed to the upper surface of the opening at one end of the pushing cylinder. The slot is opened on the top surface of the pushing cylinder. A bearing ring is fixedly connected to the center of the surface of the filter screen plate. A bayonet is opened at the center of the surfaces of the bearing ring and the connecting shaft. A clamping strip is fixedly connected to one end of the rotating shaft facing the filter screen plate. The rotating shaft passes through the bearing ring and is clamped to the surface of the connecting shaft.

[0013] Through the above technical solution, after the work of the material entering the stirring cylinder and being discharged from the discharge port of the pushing cylinder is completed, the end of the rotating shaft with the clamping strip can be pulled out from the bayonet, so that the first spiral blade and the second spiral blade in the stirring cylinder and the pushing cylinder cannot continue to be controlled to rotate, which is convenient for cleaning the filter cartridge.

[0014] In a further technical solution, the stirring cylinder is a conical shape with one end large and one end small. The pushing cylinder is fixedly connected to the large end of the stirring cylinder. The first spiral blade is arranged in a spiral shape with one end large and one end small on the surface of the connecting shaft.

[0015] Through the above technical solution, this structural setting can make the material extruded from the extrusion port be fully crushed and stirred.

[0016] In a further technical solution, a handle is fixedly connected to the top end of the installation frame.

[0017] Through the above technical solution, it is convenient to pull out the installation frame from the slot.

[0018] In a further technical solution, the pore diameters of the two filter screen plates are different. The pore diameter of the filter screen plate away from the stirring cylinder is smaller than that of the filter screen plate close to the stirring cylinder.

[0019] Through the above technical solution, the pore diameter of the filter screen plate close to the stirring cylinder is larger, which can initially filter out larger particle impurities and reduce the pressure of subsequent filtration. While the filter screen plate away from the stirring cylinder with a smaller pore diameter can further finely filter to ensure that the finally passed material has higher purity.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] The granulated material extruded by the granulator will enter the interior of the filter cylinder. Then, the driving motor can enable the first spiral blade to stir and push the material initially entering the filter cylinder. When the material passes through the filter mesh plate, it can be extruded through the mesh holes of the filter mesh plate with the driving force. During this process, dust and impurity particles can be blocked on one side of the filter mesh plate. When the material passes through the filter mesh plate and enters the position where the second spiral blade is located, it is stirred and mixed again and exported from the port of the filter cylinder. This method is beneficial to reducing the impurity content of the material extruded by the granulator and improving the product processing quality. Brief Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the present utility model;

[0023] Figure 2 is the assembly structural schematic diagram of the feed inlet and the filter cylinder of the present utility model;

[0024] Figure 3 is the partial sectional structural schematic diagram of the stirring cylinder and the pushing cylinder of the present utility model;

[0025] Figure 4 is the assembly structural schematic diagram of the installation frame and the pushing cylinder of the present utility model.

[0026] Description of the Reference Numerals:

[0027] 1. Granulator; 2. Feed inlet; 3. Extrusion port; 4. Filter cylinder; 41. Stirring cylinder; 42. Pushing cylinder; 43. Discharge port; 5. Filter mesh plate; 6. First spiral blade; 7. Connecting shaft; 8. Second spiral blade; 9. Rotating shaft; 10. Bearing bracket; 11. Bolt; 12. First bevel gear; 13. Rotating bolt; 14. Second bevel gear; 15. Motor; 16. Installation frame; 161. Slot; 17. Handle; 18. Installation groove; 19. Bearing ring; 20. Bayonet; 21. Card strip. Detailed Embodiments

[0028] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Embodiment:

[0032] Please refer to Figures 1-4 , a granulator for PCB board processing with high processing efficiency, including a granulator 1, a feed inlet 2, and an extrusion outlet 3. The feed inlet 2 and the extrusion outlet 3 are respectively located on the outer surfaces at both ends of the granulator 1. A filter cylinder 4 is fixedly connected to the outer surface of the extrusion outlet 3. Two opposite filter mesh plates 5 are arranged in the middle of the inner wall of the filter cylinder 4. A first spiral blade 6 is arranged inside one end of the filter cylinder 4 close to the extrusion outlet 3. A connecting shaft 7 is fixedly connected to the surface of the first spiral blade 6. A second spiral blade 8 is arranged inside the other end of the filter cylinder 4 far from the extrusion outlet 3. A rotating shaft 9 is fixedly connected to the surface of the second spiral blade 8. The rotating shaft 9 passes through the center of the surface of the filter mesh plate 5 and is connected to the surface of the connecting shaft 7. A bearing bracket 10 is arranged on the top surface of the end of the filter cylinder 4 far from the extrusion outlet 3. Bolts 11 are arranged on the surface of the bearing bracket 10. The bearing bracket 10 is fixedly connected to the surface of the filter cylinder 4 through the bolts 11. A first bevel gear 12 is fixedly connected to the end of the rotating shaft 9 far from the rotating shaft 9. A second bevel gear 14 is meshed and connected to the top surface of the first bevel gear 12. A rotating bolt 13 is fixedly connected to the top surface of the second bevel gear 14. A motor 15 is arranged at the top end of the rotating bolt 13.

[0033] The working principle of the above technical solution is as follows:

[0034] Start the motor 15. Drive the second bevel gear 14 to rotate through the motor 15. The rotation of the second bevel gear 14 drives the first bevel gear 12 meshed with it to rotate. The rotation of the first bevel gear 12 makes the rotating shaft 9 rotate, thereby driving the connecting shaft 7 to rotate, and further making the first spiral blade 6 and the second spiral blade 8 start to rotate. The material processed by the granulator 1 is extruded from the extrusion outlet 3 and enters one end of the filter cylinder 4 close to the extrusion outlet 3. The rotation of the first spiral blade 6 stirs and pushes the initially entered material. The material is filtered through the filter mesh plate 5 under the action of the driving force, and then reaches the other end of the filter cylinder 4 far from the extrusion outlet 3, and is stirred and mixed again by the second spiral blade 8.

[0035] Please refer to Figure 3 and Figure 4, two slots 161 are provided on the top surface of the filter cartridge 4, an installation frame 16 is inserted into the inner wall of the slot 161, an installation groove 18 is provided on the surface of the installation frame 16, and the filter mesh plate 5 is fixed to the inner wall of the installation groove 18.

[0036] When using the filter mesh plate 5, the installation frame 16 can be inserted into the inner wall of the slot 161. After each use of the filter mesh plate 5, the installation frame 16 can be taken out to clean the filter mesh plate 5, improving the long-term effectiveness of the filtration structure.

[0037] Please refer to Figure 2 and Figure 4 , the filter cartridge 4 includes a stirring cylinder 41, a pushing cylinder 42, and a discharge port 43. The stirring cylinder 41 is fixed to the port surface of the extrusion port 3, the pushing cylinder 42 is fixed to one end of the stirring cylinder 41 away from the extrusion port 3, the discharge port 43 is located at the lower edge of the opening at one end of the pushing cylinder 42 away from the stirring cylinder 41, the bearing bracket 10 is fixed to the upper surface of the opening at one end of the pushing cylinder 42, the slot 161 is provided on the top surface of the pushing cylinder 42, a bearing ring 19 is fixedly connected to the center of the surface of the filter mesh plate 5, a bayonet 20 is provided at the center of the surfaces of the bearing ring 19 and the connecting shaft 7, and a clamping bar 21 is fixedly connected to one end of the rotating shaft 9 facing the filter mesh plate 5. The rotating shaft 9 passes through the bearing ring 19 and is clamped to the surface of the connecting shaft 7.

[0038] After the work of the material entering the stirring cylinder 41 and being discharged from the discharge port 43 through the pushing cylinder 42 is completed, the end of the rotating shaft 9 with the clamping bar 21 can be pulled out from the bayonet 20, so that the first spiral blade 6 and the second spiral blade 8 in the stirring cylinder 41 and the pushing cylinder 42 can no longer be controlled to rotate, facilitating the cleaning of the filter cartridge 4.

[0039] Please refer to Figure 3 and Figure 4 , the stirring cylinder 41 is conical with one end large and one end small, the pushing cylinder 42 is fixedly connected to the large end of the stirring cylinder 41, and the first spiral blade 6 is arranged in a spiral shape with one end large and one end small on the surface of the connecting shaft 7.

[0040] This structural setting can fully crush and stir the material extruded from the extrusion port 3.

[0041] Please refer to Figure 3 and Figure 4 , a handle 17 is fixedly connected to the top end of the installation frame 16.

[0042] It is convenient to pull out the installation frame 16 from the slot 161.

[0043] Please refer to Figure 3 and Figure 4 , the pore diameters of the two filter mesh plates 5 are different, and the pore diameter of the filter mesh plate 5 far from the stirring cylinder 41 is smaller than that near the stirring cylinder 41.

[0044] The filter screen plate 5 near the mixing drum 41 has a larger aperture, which can initially filter out impurities with larger particles, reducing the pressure on subsequent filtration. The filter screen plate 5 far from the mixing drum 41 and with a smaller aperture can further perform fine filtration to ensure that the finally passed material has a higher purity.

[0045] During operation, the PCB board waste is put into the granulator 1 from the feed inlet 2. After being processed by the granulator 1, the material is extruded from the extrusion outlet 3. The extruded material enters the mixing drum 41 of the filter cylinder 4. The driving motor 15 drives the first spiral blade 6 to rotate, stirring and pushing the material initially entering the mixing drum 41. With the driving force, the material is extruded through the mesh holes of the filter screen plate 5, and the dust impurity particles are blocked on the surface of the filter screen plate 5 on the side near the mixing drum 41. The material passes through the filter screen plate 5 and enters the pushing cylinder 42, where it is stirred and mixed again under the action of the second spiral blade 8, and finally is led out from the discharge outlet 43. After use, the end of the rotating shaft 9 with the clamping strip 21 is pulled out from the bayonet 20 to clean the inside of the filter cylinder 4, and then the mounting frame 16 is pulled out from the slot 161 to clean the filter screen plate 5 to ensure the effect and efficiency of the next use.

[0046] The above-described embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A granulator for PCB board processing with high processing efficiency, comprising a granulator (1), a feed inlet (2), and an extrusion outlet (3). The feed inlet (2) and the extrusion outlet (3) are respectively located on the outer surfaces at both ends of the granulator (1), and it is characterized in that, The outer surface of the extrusion port (3) is fixedly connected with a filter cylinder (4). In the middle of the inner wall of the filter cylinder (4), there are two opposite filter mesh plates (5). Inside one end of the filter cylinder (4) close to the extrusion port (3), there is a first spiral blade (6). The surface of the first spiral blade (6) is fixedly connected with a connecting shaft (7). Inside the other end of the filter cylinder (4) far from the extrusion port (3), there is a second spiral blade (8). The surface of the second spiral blade (8) is fixedly connected with a rotating shaft (9). The rotating shaft (9) passes through the center of the surface of the filter mesh plate (5) and is connected to the surface of the connecting shaft (7). On the top surface of the end of the filter cylinder (4) far from the extrusion port (3), there is a bearing bracket (10). A bolt (11) is arranged on the surface of the bearing bracket (10). The bearing bracket (10) is fixedly connected to the surface of the filter cylinder (4) through the bolt (11). One end of the rotating shaft (9) far from the rotating shaft (9) is fixedly connected with a first bevel gear (12). The top surface of the first bevel gear (12) is meshed with a second bevel gear (14). The top surface of the second bevel gear (14) is fixedly connected with a rotating bolt (13). The top of the rotating bolt (13) is provided with a motor (15).

2. A granulator for PCB board processing with high processing efficiency according to claim 1, characterized in that, On the top surface of the filter cylinder (4), there are two slots (161). An installation frame (16) is inserted into the inner wall of the slots (161). An installation groove (18) is arranged on the surface of the installation frame (16). The filter mesh plate (5) is fixed on the inner wall of the installation groove (18).

3. A granulator for PCB board processing with high processing efficiency according to claim 2, characterized in that, The filter cylinder (4) includes a stirring cylinder (41), a pushing cylinder (42), and a discharge port (43). The stirring cylinder (41) is fixed on the port surface of the extrusion port (3). The pushing cylinder (42) is fixed at one end of the stirring cylinder (41) far from the extrusion port (3). The discharge port (43) is located at the lower edge of the opening at one end of the pushing cylinder (42) far from the stirring cylinder (41). The bearing bracket (10) is fixed on the upper surface of the opening at one end of the pushing cylinder (42). The slots (161) are arranged on the top surface of the pushing cylinder (42). The center of the surface of the filter mesh plate (5) is fixedly connected with a bearing ring (19). A bayonet (20) is arranged at the center of the surfaces of the bearing ring (19) and the connecting shaft (7). One end of the rotating shaft (9) facing the filter mesh plate (5) is fixedly connected with a clamping bar (21). The rotating shaft (9) passes through the bearing ring (19) and is clamped on the surface of the connecting shaft (7).

4. A granulator for PCB board processing with high processing efficiency according to claim 3, characterized in that, The stirring cylinder (41) is conical with one end large and one end small. The pushing cylinder (42) is fixedly connected to the large end of the stirring cylinder (41). The first spiral blade (6) is arranged in a spiral shape with one end large and one end small on the surface of the connecting shaft (7).

5. A granulator for PCB board processing with high processing efficiency according to claim 2, characterized in that, The top of the installation frame (16) is fixedly connected with a handle (17).

6. A granulator for PCB board processing with high processing efficiency according to claim 3, characterized in that, The pore diameters of the two filter mesh plates (5) are different. The pore diameter of the filter mesh plate (5) far from the stirring cylinder (41) is smaller than that of the filter mesh plate (5) close to the stirring cylinder (41).

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