Burr cleaning mechanism for processing junction box

Abstract

The utility model discloses a burr cleaning mechanism for junction box processing, which comprises a roller conveyor and a heat insulation box, an eddy current cooling module and a burr stripping module are respectively arranged in the heat insulation box, the burr stripping module is arranged at the downstream of the eddy current cooling module, the eddy current cooling module comprises a plurality of eddy current cooling pipes, and the eddy current cooling pipes are connected with the heat insulation box. A gas inlet of the vortex cooling pipe is connected with a compressed air source, a cold end outlet of the vortex cooling pipe is provided with an outer box airflow nozzle, the outer box airflow nozzle faces the surface of the roller conveyor, a hot end outlet of the vortex cooling pipe penetrates through the top wall of the heat preservation box and extends to the outside, and the burr stripping module comprises a plurality of brushes. A transmission shaft is fixed to the center of the top of the brush, the brush and the heat preservation box are rotationally connected through the transmission shaft and a bearing, in the burr cooling embrittlement link, efficient and uniform low-temperature cooling is achieved for the burr area of the junction box through the vortex cooling pipe, it is guaranteed that burrs are fully embrittled, and then the embrittled burrs are peeled off as much as possible through the brush.

Description

Technical Field

[0001] This utility model belongs to the field of plastic parts processing technology, specifically relating to a burr removal mechanism for junction box processing. Background Technology

[0002] In the production process of plastic junction boxes, after the injection molding stage, burrs are prone to appear at critical areas such as the parting line and gate. Residual burrs not only negatively impact the product's appearance but also significantly interfere with assembly precision in subsequent assembly stages, thus affecting the overall product performance. Currently, mainstream deburring processes in the industry encompass various technical approaches, including cryogenic deburring, vibratory grinding deburring, and chemical solvent deburring. Among these, cryogenic deburring technology holds a significant position due to its substantial advantages, including high efficiency, cleanliness, non-damage to the workpiece, environmental friendliness, and wide applicability. This technology primarily uses dry ice or liquid nitrogen as a cooling medium, utilizing an ultra-low temperature environment to rapidly embrittle the burrs, thereby achieving convenient removal.

[0003] However, in practical applications, cryogenic deburring technology requires a series of devices for dry ice preparation, storage, and high-pressure spraying, resulting in a complex overall equipment structure and high energy consumption. Furthermore, the cost of dry ice is substantial; calculations show that the cost of dry ice per unit is approximately 0.3 yuan. In addition, the CO2 released during dry ice sublimation exacerbates the greenhouse effect, posing potential environmental hazards. Based on these issues, this invention proposes a deburring mechanism for junction box processing, featuring a simple structure, low cost, and strong compatibility, providing a novel solution for deburring plastic junction boxes. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a burr removal mechanism for junction box processing, comprising a roller conveyor and an insulation box. The insulation box contains an eddy current cooling module and a burr removal module. The burr removal module is located downstream of the eddy current cooling module. The eddy current cooling module includes several eddy current cooling pipes. The gas inlet of each eddy current cooling pipe is connected to a compressed air source. An external airflow nozzle is installed at the cold end outlet of each eddy current cooling pipe, facing the surface of the roller conveyor. The hot end outlet of the eddy current cooling pipe extends through the top wall of the insulation box to the outside. The burr removal module includes several brushes. A drive shaft is fixed at the center of the top of each brush. The brushes and the insulation box are rotatably connected via the drive shaft and bearings.

[0005] As a preferred embodiment of this utility model, the number of vortex cooling tubes is ~, arranged linearly or in a matrix.

[0006] As a preferred technical solution of this utility model, the insulated box has inlets and outlets at both ends, and the roller conveyor passes through the inlets and outlets.

[0007] As a preferred embodiment of this utility model, the bottom of the insulation box has an inverted conical structure and a discharge port is provided at the bottom end, and a discharge valve is installed at the discharge port.

[0008] As a preferred technical solution of this utility model, a guide hopper is fixed inside the inverted conical bottom of the heat preservation box, and a leakage port is opened at the center of the bottom of the guide hopper.

[0009] As a preferred embodiment of this utility model, a drive motor is installed at the top of the drive shaft, and the output end of the drive motor is connected to one of the drive shafts and adjacent drive shafts via belt drive.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In the burr cooling and embrittlement stage, this utility model ensures that the junction box can smoothly and continuously enter the insulation box for burr cleaning through a roller conveyor. At the same time, the insulation box effectively maintains a relatively stable temperature and airflow environment, greatly avoiding interference from external factors; the vortex cooling pipe achieves efficient and uniform low-temperature cooling of the burr area of ​​the junction box, ensuring that the burrs are fully embrittled before the brush is used to carefully peel off the embrittled burrs, avoiding energy waste and high costs caused by excessive configuration, and significantly improving the cleaning effect within a reasonable energy consumption range.

[0012] (2) The bottom of the insulation box adopts an inverted cone structure and is equipped with a discharge port and discharge valve, which facilitates the collection and centralized treatment of waste material peeled off from the junction box surface during the burr cleaning process; the guide hopper is fixed inside the inverted cone bottom of the insulation box, and a discharge port is opened in the center of the bottom to guide the peeled burrs to fall accurately into the discharge port, while reducing the disturbance of the airflow inside the box to the waste material, improving the waste material collection efficiency, making the waste material treatment more efficient and environmentally friendly, and reducing the pollution to the production environment. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the insulated box in this utility model;

[0016] In the diagram: 1. Roller conveyor; 2. Insulation box; 3. Vortex cooling pipe; 4. Compressed air source; 5. Outer casing airflow nozzle; 6. Brush; 7. Drive shaft; 8. Inlet and outlet; 9. Discharge port; 10. Discharge valve; 11. Guide hopper; 12. Leakage port; 13. Drive motor. Detailed Implementation

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

[0018] Please see Figure 1-2 This utility model provides the following technical solution: a burr removal mechanism for junction box processing, including a roller conveyor 1 and an insulation box 2. The insulation box 2 is equipped with an eddy current cooling module and a burr removal module. The burr removal module is located downstream of the eddy current cooling module. The eddy current cooling module includes several eddy current cooling pipes 3. The gas inlet of the eddy current cooling pipe 3 is connected to a compressed air source 4. An outer airflow nozzle 5 is installed at the cold end outlet of the eddy current cooling pipe 3. The outer airflow nozzle 5 faces the surface of the roller conveyor 1. The hot end outlet of the eddy current cooling pipe 3 extends through the top wall of the insulation box 2 to the outside. The burr removal module includes several brushes 6. A drive shaft 7 is fixed at the top center of the brushes 6. The brushes 6 and the insulation box 2 are rotatably connected through the drive shaft 7 and bearings.

[0019] In order to achieve efficient and uniform low-temperature cooling of the burr area of ​​junction boxes of different specifications, and to ensure that the burrs are fully brittle, while taking into account the spatial layout and cost of the mechanism, in this embodiment, as a preferred technical solution of the present invention, the number of eddy current cooling tubes 3 is 3 to 6, arranged linearly or in a matrix.

[0020] In order to ensure that the junction box can smoothly and continuously enter the insulation box 2 for the burr cleaning process, while maintaining a relatively stable temperature and airflow environment inside the insulation box 2, avoiding interference from external factors, and realizing efficient automated production process connection, in this embodiment, as a preferred technical solution of this utility model, the insulation box 2 has inlet and outlet 8 at both ends, the roller conveyor 1 passes through the inlet and outlet 8, and the inlet and outlet 8 are also equipped with door curtains to keep the interior warm and prevent external airflow interference.

[0021] In order to facilitate the collection and centralized treatment of waste material peeled off from the junction box surface during the edge cleaning process, prevent the waste material from accumulating at the bottom of the insulation box 2 and affecting the normal operation of the equipment, and to achieve convenient discharge of waste material, in this embodiment, as a preferred technical solution of the present invention, the bottom of the insulation box 2 is inverted conical structure, and a discharge port 9 is opened at the bottom end, and a discharge valve 10 is installed at the discharge port 9.

[0022] In order to further optimize the waste collection path, guide the stripped burrs to fall accurately into the discharge port 9, reduce the scattering and residue of waste in the box, reduce the disturbance of the airflow in the box to the waste, and improve the waste collection efficiency, in this embodiment, as a preferred technical solution of the present invention, the bottom of the inverted cone-shaped insulated box 2 is fixed with a guide hopper 11, and a discharge port 12 is opened at the center of the bottom of the guide hopper 11.

[0023] In order to provide stable and efficient power output for the brush 6, realize the synchronous and high-speed rotation of multiple brushes 6, ensure the effective peeling of brittle burrs, and simplify the power transmission structure, reduce the difficulty and cost of equipment maintenance, in this embodiment, as a preferred technical solution of the present invention, a drive motor 13 is installed at the top of the drive shaft 7, and the output end of the drive motor 13 is connected to one of the drive shafts 7 and adjacent drive shafts 7 by belt drive.

[0024] In this embodiment, the vortex cooling tube 3 is a known technology that has been widely used in daily life. It is a cooling device that utilizes the principle of generating strong vortex flow between rotating blades to make the liquid and gas medium form strong convective heat transfer.

[0025] In summary, with the help of the above-described technical solution of this utility model,

[0026] First, the plastic junction boxes with rough edges are conveyed by roller conveyor 1. Roller conveyor 1 acts as the material transport carrier, smoothly and orderly feeding the junction boxes into the insulated box 2. Limiting structures are installed on both sides of roller conveyor 1, typically consisting of adjustable height and spacing baffles, which are arranged parallel to the length of roller conveyor 1. By precisely adjusting the spacing of the baffles on both sides, making the spacing slightly wider than the width of a single junction box, or by placing multiple baffles in the middle for support, multiple junction boxes can be conveyed simultaneously and orderly. This is a standard product structure, guiding the junction boxes to travel in a straight line on roller conveyor 1, preventing them from failing to enter the insulated box 2 due to positional deviation. It also prevents the junction box body from moving during subsequent rough edge removal. The insulated box 2 provides a relatively enclosed working environment for the entire cleaning process, facilitating centralized processing of rough edges and controlling factors such as temperature and airflow during the cleaning process.

[0027] Upon entering the insulation box 2, the junction box first undergoes processing by the eddy current cooling module. The eddy current cooling module consists of several eddy current cooling tubes 3 arranged linearly or in a matrix, typically numbering 3-6. The gas inlets of these eddy current cooling tubes 3 are connected to a compressed air source 4. The compressed air source 4 is generally generated by an air compressor, which compresses ambient air through a motor-driven piston or screw mechanism. The compressed air is stored in a storage tank to stabilize the pressure output and provide a continuous and stable high-pressure gas supply to the system. This high-pressure gas enters the eddy current cooling tubes 3, where its special structure creates a high-speed rotating airflow. This high-speed rotating airflow creates a separation effect within the eddy current cooling tubes 3, causing the cold and hot portions of the gas to move towards opposite ends of the tube. An external airflow nozzle 5 installed at the cold end outlet sprays the low-temperature airflow onto the junction box on the surface of the roller conveyor 1. This low-temperature airflow rapidly reduces the surface temperature of the junction box, especially the temperature of the rough edges. Due to the difference in material properties between the burrs and the junction box body, the burrs are more prone to embrittlement at low temperatures, creating favorable conditions for subsequent stripping. Meanwhile, the hot-end outlet of the vortex cooling pipe 3 extends through the top wall of the insulation box 2 to the outside, expelling the generated hot airflow outside the box and maintaining a stable low-temperature environment inside.

[0028] After being processed by the eddy current cooling module, the brittle burrs are transported to the burr removal module along with the junction box. The burr removal module mainly consists of a cleaning assembly containing several brushes 6. A drive shaft 7 is fixed to the center of the top of each brush 6 and is rotatably connected to the insulation box 2 via bearings. A drive motor 13 is mounted at the top of the drive shaft 7, and the output of the drive motor 13 is connected to one of the drive shafts 7. Adjacent drive shafts 7 are connected via belt drives. After the drive motor 13 starts, its output power is transmitted to each drive shaft 7 through the belt drive system, thereby driving the brushes 6 to rotate at high speed. The high-speed rotating brushes 6 contact the brittle burrs, using the friction of the brushes 6 to peel the burrs off the surface of the junction box.

[0029] Throughout the cleaning process, the inlet and outlet 8 at both ends of the insulated box 2 ensures the smooth entry and exit of the junction box, and the roller conveyor 1 runs through the inlet and outlet 8 to achieve continuous conveying. The bottom of the insulated box 2 has an inverted conical structure with a discharge port 9 at the bottom, and a discharge valve 10 is installed at the discharge port 9. Inside the inverted conical bottom, a guide hopper 11 is fixed, and a leakage port 12 is opened at the center of the bottom of the guide hopper 11. Under the action of gravity, the stripped burrs slide down the inverted conical structure at the bottom of the insulated box 2 to the surface of the guide hopper 11. Guided by the guide hopper 11, they fall from the leakage port 12 into the discharge port 9. The guide hopper 11 also prevents airflow from disturbing the waste at the bottom. When it is necessary to clean the burr waste, the discharge valve 10 is opened to discharge the waste into the insulated box 2, realizing convenient collection and treatment of waste.

[0030] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A burr removal mechanism for junction box processing, comprising a roller conveyor (1) and an insulation box (2), characterized in that: The insulation box (2) is equipped with a vortex cooling module and a burr removal module. The burr removal module is located downstream of the vortex cooling module. The vortex cooling module includes several vortex cooling pipes (3). The gas inlet of the vortex cooling pipe (3) is connected to a compressed air source (4). The cold end outlet of the vortex cooling pipe (3) is equipped with an outer box airflow nozzle (5). The outer box airflow nozzle (5) faces the surface of the roller conveyor (1). The hot end outlet of the vortex cooling pipe (3) extends through the top wall of the insulation box (2) to the outside. The burr removal module includes several brushes (6). The top center of the brushes (6) is fixed with a drive shaft (7). The brushes (6) and the insulation box (2) are rotatably connected through the drive shaft (7) and bearings.

2. The burr removal mechanism for junction box processing according to claim 1, characterized in that: The number of vortex cooling tubes (3) is 3 to 6, arranged linearly or in a matrix.

3. The burr removal mechanism for junction box processing according to claim 1, characterized in that: The insulated box (2) has inlets and outlets (8) at both ends, and the roller conveyor (1) passes through the inlets and outlets (8).

4. The burr removal mechanism for junction box processing according to claim 1, characterized in that: The bottom of the insulated box (2) is an inverted cone shape, and a discharge port (9) is provided at the bottom end. A discharge valve (10) is installed at the discharge port (9).

5. The burr removal mechanism for junction box processing according to claim 1, characterized in that: The insulated box (2) has a guide hopper (11) fixed inside the inverted cone-shaped bottom, and a discharge port (12) is opened at the center of the bottom of the guide hopper (11).

6. The burr removal mechanism for junction box processing according to claim 1, characterized in that: A drive motor (13) is installed at the top of the drive shaft (7). The output end of the drive motor (13) is connected to one of the drive shafts (7) and adjacent drive shafts (7) by belt drive.

Images