Environment-friendly pelletizer for PCB (Printed Circuit Board)

Abstract

The utility model discloses a PCB (printed circuit board) environment-friendly granulator, which comprises a base, a granulator, a feed inlet, a granule outlet and a cooling tank, the granulator is fixedly connected to the top surface of the base, the feed inlet and the granule outlet are respectively arranged on the outer surface of the granulator, the cooling tank is positioned on one side of the base, the top opening of the cooling tank is opposite to the granule outlet, and the top opening of the cooling tank is opposite to the granule outlet. A screen is arranged on the inner wall of the cooling tank, a top opening of the screen is opposite to the particle outlet, a connecting column is fixedly connected to one end of the screen, the cooling tank with the screen, the connecting column and a swing structure driven by a motor are arranged, and a circulating cooling water tank is arranged, so that PCB particles are efficiently cooled; the problem that the continuous cooling effect is affected by water temperature rise in an existing water cooling mode is solved, cooling liquid is evenly distributed through swinging of the screen, and heat exchange uniformity is improved; and the circulating cooling water tank continuously cools the cooling liquid, so that the heat absorption capacity of the cooling liquid is ensured, and the final performance and application of the cooling liquid are ensured.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to an environmentally friendly granulator for PCB boards. Background Art

[0002] PCB board environmentally friendly granulator is an advanced equipment specially used to process PCB (printed circuit board) waste and convert it into reusable particles. This granulator has many significant advantages. First of all, it plays an important role in environmental protection. By processing and reprocessing discarded PCB boards, it reduces the pollution and harm of electronic waste to the environment. Secondly, the working efficiency of PCB board environmentally friendly granulator is high. It can quickly convert a large amount of PCB board waste into uniform particles, which improves the speed and scale of resource recovery. In terms of performance, it usually has a high-precision crushing and screening system to ensure the stable quality of the produced particles to meet the requirements of subsequent reuse.

[0003] During the granulation process, the newly produced particles often have a high temperature, and high temperature may affect the physical properties of the particles. Continuous high temperature may cause changes in the crystallinity, hardness and other physical properties of the particles, thereby affecting their final performance and use. Existing cooling devices for environmentally friendly granulation of PCB boards are mostly used in water cooling. However, in the actual operation process, they are faced with the problem that the rising water temperature affects the continuous cooling effect. The initial cooling water temperature is room temperature, but after a period of continuous operation, the water temperature will increase significantly. As the water temperature rises, its heat absorption capacity gradually decreases. The cooling water that can quickly take away the heat of the particles will have a greatly reduced cooling efficiency after the temperature rises. The PCB board contains some harmful substances. If the cooling is not good and the particle temperature is too high, it may accelerate the volatilization of these harmful substances. The volatilized harmful substances enter the atmosphere and cause serious air pollution.

[0004] Therefore, an environmentally friendly PCB board granulator is proposed. Utility Model Content

[0005] In view of the above problems, the utility model provides an environmentally friendly granulator for PCB boards to solve the problems raised in the above background technology.

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

[0007] The PCB board environmental protection granulator includes a base, a granulator, a feed inlet, a granule outlet, and a cooling tank. The granulator is fixedly connected to the top surface of the base. The feed inlet and the granule outlet are respectively arranged on the outer surface of the granulator. The cooling tank is located on one side of the base, and the top opening of the cooling tank faces the granule outlet. A screen is arranged on the inner wall of the cooling tank, and the top opening of the screen faces the granule outlet. One end of the screen is fixedly connected with a connecting column. Symmetrically arranged bearing brackets are connected to the inner wall of the cooling tank. Convex shafts are fixedly connected to both the upper and lower ends of the connecting column, and the convex shafts are fixedly connected to the inner wall of the bearing brackets. The convex shaft at the bottom of the connecting column penetrates through the cooling tank and is connected with a first bevel gear. A second bevel gear is meshed and connected to the outer surface of the first bevel gear. A motor is arranged at the bottom on one side of the cooling tank, and the output end of the motor is fixedly connected with the second bevel gear. A circulating cooling water tank is fixedly connected to the side wall of the cooling tank away from the motor, and opposite connecting pipes are communicated between the circulating cooling water tank and the cooling tank.

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

[0009] First, the material to be processed is put into the granulator through the feed inlet. The granulator processes the material to form PCB board particles, which are discharged through the granule outlet. The discharged PCB board particles directly fall onto the top opening of the screen opposite to the granule outlet in the cooling tank. Then, the motor is started. The output end of the motor drives the second bevel gear to rotate. Since the second bevel gear is meshed with the first bevel gear, the first bevel gear is driven to rotate. The rotation of the first bevel gear causes the convex shaft at the bottom of the connecting column to rotate, thereby driving the connecting column and the screen to swing in the cooling tank. At the same time, the circulating cooling water tank continuously circulates and cools the coolant in the cooling tank through the connecting pipes. Under the swinging action of the screen, the coolant after each heat exchange can be evenly distributed inside the cooling tank, thereby improving the heat exchange uniformity and ensuring that the PCB board particles can be efficiently cooled, avoiding affecting the cooling work efficiency due to the rise of the water temperature.

[0010] In a further technical solution, the screen includes a first screening sleeve fixedly connected with the connecting column, and a second screening sleeve is inserted into the inner wall of the first screening sleeve.

[0011] Through the above technical solution, when the cooling is completed, the second screening sleeve can be directly pulled out from the first screening sleeve, and the PCB board particles are concentrated in the second screening sleeve, which is convenient for quickly and cleanly taking out the cooled particles, improving the discharging efficiency. In addition, when blockage occurs during use, only the second screening sleeve needs to be separately processed, without replacing the whole screen, reducing the maintenance cost.

[0012] In a further technical solution, connection blocks are fixedly connected to both sides at the end of the first screening sleeve away from the connecting column, and connection springs are fixedly connected between the connection blocks and the inner wall of the cooling tank.

[0013] Through the above technical solution, during the swinging process of the sieve mesh, the connecting spring can provide a certain tensile force and buffering force, making the swinging of the sieve mesh more stable, reducing shaking and irregular movements, which helps to improve the cooling uniformity. During the swinging process of the sieve mesh, it may collide with the inner wall of the cooling tank, and the connecting spring can absorb and buffer this impact.

[0014] In a further technical solution, the sieve mesh is fan-shaped, and the small end is located on the surface of the connecting column.

[0015] Through the above technical solution, the fan-shaped design can better adapt to the shape of the cooling tank, make full use of the space inside the cooling tank, increase the effective area of the sieve mesh in a limited space, and thus improve the cooling efficiency.

[0016] In a further technical solution, a support frame is fixedly connected to the surface of the motor, and the support frame is fixed on the surface of the cooling tank.

[0017] Through the above technical solution, a stable installation foundation is provided for the motor, effectively preventing the motor from shaking and displacing during operation.

[0018] In a further technical solution, a handle is fixedly connected to the inner wall of the top opening of the second screening sleeve.

[0019] Through the above technical solution, the operator can easily pull out the second screening sleeve from the first screening sleeve by holding the handle, improving the convenience of the discharging operation and saving manpower and time.

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

[0021] By providing a cooling tank with a sieve mesh, a connecting column, and a swinging structure driven by a motor, and equipping with a circulating cooling water tank, efficient cooling of PCB board particles is achieved, solving the problem that the rising water temperature in the previous water cooling method affects the continuous cooling effect. Among them, the swinging of the sieve mesh makes the coolant evenly distributed, improving the heat transfer uniformity; the circulating cooling water tank continuously cools the coolant, ensuring the heat absorption capacity of the coolant, and thus guaranteeing its final performance and use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 is the structural schematic diagram of the cooling tank of the present utility model;

[0024] Figure 3 is the partial sectional structural schematic diagram of the cooling tank of the present utility model;

[0025] Figure 4It is the utility model Figure 3 The enlarged structural schematic diagram of part A in it;

[0026] Figure 5 It is the assembly structural schematic diagram of the sieve mesh of the utility model.

[0027] Explanation of the reference numerals:

[0028] 1. Base; 2. Granulator; 3. Feed inlet; 4. Granule outlet; 5. Cooling tank; 6. Sieve mesh; 61. First screening sleeve; 62. Second screening sleeve; 63. Handle; 7. Connecting column; 8. Convex shaft; 9. Bearing bracket; 10. First bevel gear; 11. Second bevel gear; 12. Motor; 13. Support frame; 14. Connecting block; 15. Connecting spring; 16. Circulating cooling water tank; 17. Connecting pipe. Specific embodiments

[0029] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the following combines specific embodiments to further elaborate the utility model.

[0030] In the description of the 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 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 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.

[0031] In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific situations.

[0032] Embodiment:

[0033] Please refer to Figures 1-5, PCB board environmental protection granulator, including a base 1, a granulator 2, a feed inlet 3, a granule outlet 4, and a cooling tank 5. The granulator 2 is fixedly connected to the top surface of the base 1. The feed inlet 3 and the granule outlet 4 are respectively arranged on the outer surface of the granulator 2. The cooling tank 5 is located on one side of the base 1, and the top opening of the cooling tank 5 is opposite to the granule outlet 4. A screen 6 is arranged on the inner wall of the cooling tank 5, and the top opening of the screen 6 is opposite to the granule outlet 4. One end of the screen 6 is fixedly connected to a connecting column 7. Symmetrically arranged bearing brackets 9 are connected to the inner wall of the cooling tank 5. Convex shafts 8 are fixedly connected to both the upper and lower ends of the connecting column 7, and the convex shafts 8 are fixedly connected to the inner wall of the bearing brackets 9. The convex shaft 8 at the bottom of the connecting column 7 penetrates through the cooling tank 5 and is connected to a first bevel gear 10. A second bevel gear 11 is meshed with the outer surface of the first bevel gear 10. A motor 12 is arranged at the bottom on one side of the cooling tank 5, and the output end of the motor 12 is fixedly connected to the second bevel gear 11. A circulating cooling water tank 16 is fixedly connected to the side wall of the cooling tank 5 away from the motor 12. Oppositely arranged connecting pipes 17 are communicated between the circulating cooling water tank 16 and the cooling tank 5. By driving the motor 12, the screen 6 can be swung inside the cooling tank 5. At the same time, the circulating cooling water tank 16 continuously circulates and cools the coolant inside the cooling tank 5. Cooperating with the swinging screen 6, the coolant after each heat exchange can be made uniform inside the cooling tank 5, which can improve the heat exchange uniformity, maintain the working efficiency of cooling the PCB board particles, and avoid the influence of the rising water temperature on the cooling working efficiency.

[0034] The working principle of the above technical solution is as follows:

[0035] First, the material to be processed is put into the granulator 2 through the feed inlet 3. The granulator 2 processes the material to form PCB board particles, and discharges them through the granule outlet 4. The discharged PCB board particles directly fall onto the top opening of the screen 6 opposite to the granule outlet 4 inside the cooling tank 5. Then, the motor 12 is started. The output end of the motor 12 drives the second bevel gear 11 to rotate. Since the second bevel gear 11 is meshed with the first bevel gear 10, the first bevel gear 10 is driven to rotate. The rotation of the first bevel gear 10 causes the convex shaft 8 at the bottom of the connecting column 7 to rotate, thereby driving the connecting column 7 and the screen 6 to swing inside the cooling tank 5. At the same time, the circulating cooling water tank 16 continuously circulates and cools the coolant inside the cooling tank 5 through the connecting pipes 17. Under the swinging action of the screen 6, the coolant after each heat exchange can be evenly distributed inside the cooling tank 5, thereby improving the heat exchange uniformity, ensuring the efficient cooling of the PCB board particles, and avoiding the influence of the rising water temperature on the cooling working efficiency.

[0036] Please refer to Figure 3 and Figure 5 , the screen 6 includes a first screening sleeve 61 fixedly connected to the connecting column 7, and a second screening sleeve 62 is inserted into the inner wall of the first screening sleeve 61.

[0037] After the cooling is completed, the second screening sleeve 62 can be directly pulled out from the first screening sleeve 61. The PCB board particles are concentrated in the second screening sleeve 62, which facilitates the quick and clean extraction of the cooled particles, improving the discharging efficiency. In addition, if there is a blockage during use, only the second screening sleeve 62 needs to be treated separately, without replacing the screen mesh as a whole, reducing the maintenance cost.

[0038] Please refer to Figure 3 , on both sides of one end of the first screening sleeve 61 away from the connecting column 7, there are fixedly connected connecting blocks 14, and a connecting spring 15 is fixedly connected between the connecting block 14 and the inner wall of the cooling tank 5.

[0039] During the swinging process of the screen mesh 6, the connecting spring 15 can provide a certain pulling force and buffering force, making the swinging of the screen mesh more stable, reducing shaking and irregular movements, which helps to improve the uniformity of cooling. During the swinging process of the screen mesh, it may collide with the inner wall of the cooling tank 5, and the connecting spring 15 can absorb and buffer this impact.

[0040] Please refer to Figure 3 and Figure 5 , the screen mesh 6 is fan-shaped, and the small end is located on the surface of the connecting column 7.

[0041] The fan-shaped design can better adapt to the shape of the cooling tank 5, make full use of the space in the cooling tank, increase the effective area of the screen mesh in a limited space, and thus improve the cooling efficiency.

[0042] Please refer to Figure 3 and Figure 4 , on the surface of the motor 12, there is fixedly connected a support frame 13, and the support frame 13 is fixed on the surface of the cooling tank 5.

[0043] It provides a stable installation foundation for the motor 12, effectively preventing the motor from shaking and displacing during operation.

[0044] Please refer to Figure 1 and Figure 5 , on the inner wall of the top opening of the second screening sleeve 62, there is fixedly connected a handle 63.

[0045] The operator can easily pull out the second screening sleeve 62 from the first screening sleeve 61 by holding the handle 63, improving the convenience of the discharging operation and saving manpower and time.

[0046] During operation, when the PCB board particles are discharged from the particle outlet 4, they will directly fall into the top opening of the sieve mesh 6. At this time, the motor 12 is started, and the motor 12 drives the second bevel gear 11 to rotate. The first bevel gear 10 engaged therewith rotates accordingly, so that the convex shaft 8 rotates in the bearing bracket 9, driving the connecting column 7 to rotate. The rotation of the connecting column 7 causes the sieve mesh 6 to start swinging in the cooling tank 5. While the sieve mesh 6 is swinging, the circulating cooling water tank 16 continuously circulates and cools the coolant inside the cooling tank 5 through the connecting pipe 17. Due to the swinging of the sieve mesh 6, the coolant after heat exchange is evenly distributed inside the cooling tank 5 each time, improving the heat exchange uniformity. When the cooling work is completed, the second screening sleeve 62 is pulled out of the first screening sleeve 61 through the handle 63, which is convenient for taking out the PCB board particles. During the entire cooling process, the connecting spring 15 assists the stable swinging of the sieve mesh 6 through the connecting block 14, and the motor 12 is stably installed on the surface of the cooling tank 5 through the support frame 13.

[0047] The above-described embodiments merely represent the specific implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A PCB board environmentally friendly granulator, comprising a base (1), a granulator (2), a feed inlet (3), a granulation outlet (4), and a cooling trough (5), wherein the granulator (2) is fixedly connected to the top surface of the base (1), the feed inlet (3) and the granulation outlet (4) are respectively arranged on the outer surface of the granulator (2), the cooling trough (5) is located on one side of the base (1), and the top of the cooling trough (5) is opposite to the granulation outlet (4), characterized in that: The inner wall of the cooling groove (5) is provided with a screen (6), the top of the screen (6) is opposite to the particle outlet (4), one end of the screen (6) is fixedly connected to a connecting column (7), the inner wall of the cooling groove (5) is connected to a symmetrically arranged bearing frame (9), the upper and lower ends of the connecting column (7) are fixedly connected to a convex shaft (8), the convex shaft (8) is fixedly connected to the inner wall of the bearing frame (9), the convex shaft (8) at the bottom of the connecting column (7) penetrates the cooling groove (5) and is connected to A first bevel gear (10), the outer surface of the first bevel gear (10) is meshingly connected with a second bevel gear (11), a motor (12) is arranged at the bottom of one side of the cooling groove (5), the output end of the motor (12) is fixedly connected to the second bevel gear (11), a side wall of the cooling groove (5) away from the motor (12) is fixedly connected with a circulating cooling water tank (16), and a connecting pipe (17) arranged oppositely is connected between the circulating cooling water tank (16) and the cooling groove (5).

2. The environmentally friendly PCB board granulator according to claim 1, characterized in that: The screen (6) comprises a first screening sleeve (61) fixedly connected to a connecting column (7), and a second screening sleeve (62) is inserted into the inner wall of the first screening sleeve (61).

3. The environmentally friendly PCB board granulator according to claim 2, characterized in that: Connecting blocks (14) are fixedly connected to both sides of one end of the first screening sleeve (61) away from the connecting column (7), and a connecting spring (15) is fixedly connected between the connecting block (14) and the inner wall of the cooling groove (5).

4. The environmentally friendly PCB board granulator according to claim 1, characterized in that: The screen (6) is fan-shaped, and the small end is located on the surface of the connecting column (7).

5. The environmentally friendly PCB board granulator according to claim 1, characterized in that: A support frame (13) is fixedly connected to the surface of the motor (12), and the support frame (13) is fixed to the surface of the cooling tank (5).

6. The environmentally friendly PCB board granulator according to claim 2, characterized in that: A handle (63) is fixedly connected to the inner wall of the top opening of the second screening sleeve (62).

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