Efficient mixing sand blasting mechanism and mobile phone middle frame burr removing device

Abstract

The utility model belongs to the technical field of mobile phone processing equipment, and particularly relates to an efficient mixing sand blasting mechanism and a mobile phone middle frame burr removing device, which comprise an air inlet pipe, a sand inlet pipe and a mixing pipe, the sand inlet pipe is used for conveying nylon sand; the input end of the mixing pipe is connected with the output end of the gas inlet pipe; wherein the pipe diameter of the air inlet pipe is larger than that of the sand inlet pipe, a limiting assembly is arranged at the output end of the air inlet pipe, the sand inlet pipe is installed in the middle of the air inlet pipe through the limiting assembly, and the output direction of the sand inlet pipe and the output direction of the air inlet pipe are the same and both face the input end of the mixing pipe. The high-speed airflow wraps the nylon sand to jointly enter the mixing pipe, and the nylon sand moves from the middle position of the high-speed airflow, so that the nylon sand and the airflow are fully mixed, the content of the nylon sand in the high-speed gas output by the mixing pipe is effectively increased, and the sand blasting effect is further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mobile phone processing equipment, and in particular relates to a high-efficiency mixed sandblasting mechanism and a mobile phone mid-frame burr removal device. Background Technology

[0002] In mobile phone manufacturing, burrs refer to the rough edges and irregular protrusions on the edges of metal or other material frames after machining. Nylon sandblasting is a commonly used deburring process that effectively removes these imperfections, improving the product's appearance and feel. According to the latest information, nylon sandblasting machines can process precision plastic or metal parts such as mobile phone cases, removing burrs and flash, and due to the toughness and non-cutting properties of nylon sand, it will not damage the product during use.

[0003] In the prior art, the sandblasting pipe includes an air inlet pipe, a sand inlet pipe, and a mixing pipe. The output ends of the air inlet pipe and the sand inlet pipe are connected to the input end of the mixing pipe. The high-speed airflow input by the air inlet pipe carries the nylon sand output by the sand inlet pipe through the mixing pipe and is ejected quickly, thereby achieving a high-speed sandblasting effect.

[0004] However, in traditional systems, the air intake pipe and sand inlet pipe are symmetrically distributed on both sides of the input end of the mixing pipe. After the airflow and nylon sand are input into the mixing pipe, part of the airflow and nylon sand mix and move together, while the other part of the airflow and nylon sand near the edge of the mixing pipe continues to move along the inner wall of the mixing pipe. This results in low mixing efficiency between the airflow and nylon sand, which urgently needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency mixing sandblasting mechanism and a mobile phone frame burr removal device, which aims to solve the technical problem in the existing nylon sand blasting equipment where, after the airflow and nylon sand in the air inlet pipe and sand inlet pipe are input to both sides of the input end of the mixing pipe, part of the airflow and nylon sand mix and move together, while another part of the airflow and nylon sand near the edge of the mixing pipe continues to move along the inner wall of the mixing pipe, resulting in low mixing efficiency between the airflow and nylon sand.

[0006] To achieve the above objectives, this utility model provides a high-efficiency mixing sandblasting mechanism, including an air inlet pipe, a sand inlet pipe, and a mixing pipe. The air inlet pipe is used to transport high-speed airflow; the sand inlet pipe is used to transport nylon sand; the input end of the mixing pipe is connected to the output end of the air inlet pipe; wherein, the diameter of the air inlet pipe is larger than that of the sand inlet pipe, a limiting component is provided at the output end of the air inlet pipe, the sand inlet pipe is installed at the middle position of the air inlet pipe through the limiting component, and the output direction of the sand inlet pipe is the same as that of the air inlet pipe and both are set towards the input end of the mixing pipe.

[0007] Optionally, there is a gap between the inner wall of the air intake pipe and the outer wall of the sand inlet pipe.

[0008] Optionally, the limiting assembly includes an inner ring, an outer ring, and a connecting rod. The inner ring is sleeved and fixed on the outer wall of the sand inlet pipe, the outer ring is fixed on the inner wall of the air inlet pipe, and the two ends of the connecting rod are fixedly connected to the outer wall of the inner ring and the inner wall of the outer ring, respectively.

[0009] Optionally, the number of connecting rods is multiple sets, and air holes for airflow are provided between adjacent sets of connecting rods.

[0010] Optionally, the inner ring and the outer ring are thickened along the length of the air intake pipe, so that both the inner ring and the outer ring are sleeve-shaped structures.

[0011] Optionally, the output end of the intake pipe is provided with a conical structure, and the diameter of the output end of the intake pipe gradually decreases from the limiting component towards the mixing pipe.

[0012] Optionally, the inner wall of the output end of the air intake pipe is provided with a spiral groove for driving the airflow to move spirally in a preset direction.

[0013] Optionally, the input ends of the air intake pipe and the sand inlet pipe are both connected to the output pipe of a control unit, and the middle sections of the air intake pipe and the sand inlet pipe are fitted together.

[0014] Optionally, the mixing pipe includes an extended delivery pipe and a nozzle. The output end of the extended delivery pipe is connected to the output end of the air intake pipe. The nozzle is disposed at the output end of the extended delivery pipe and has a conical sleeve structure. The end of the nozzle away from the extended delivery pipe gradually narrows.

[0015] To achieve the above objectives, this utility model embodiment also provides a mobile phone frame burr removal device, including the above-mentioned high-efficiency mixed sandblasting mechanism.

[0016] The high-efficiency mixing sandblasting mechanism and mobile phone frame burr removal device provided in this utility model embodiment have at least one of the following technical effects: High-speed airflow moves along the pipe direction of the air inlet pipe. Simultaneously, the sand inlet pipe is filled with nylon sand. When the high-speed airflow enters the mixing pipe through the output end of the air inlet pipe, the high-speed airflow at the output end of the air inlet pipe covers the output end of the sand inlet pipe, creating a siphon effect on the nylon sand at the output end of the sand inlet pipe. The nylon sand in the sand inlet pipe is affected by suction and quickly moves into the mixing pipe under the influence of the high-speed airflow. Compared to existing nylon sand sandblasting equipment... In traditional blasting systems, after the airflow and nylon sand in the air inlet pipe and sand inlet pipe are input into the mixing pipe on both sides, a portion of the airflow and nylon sand mix and move together, while the other portion of the airflow and nylon sand near the edge of the mixing pipe continues to move along the inner wall of the mixing pipe. This results in a low mixing efficiency between the airflow and the nylon sand. The high-efficiency mixing sandblasting mechanism and mobile phone frame burr removal device provided in this embodiment of the invention use high-speed airflow to carry nylon sand into the mixing pipe. Since the nylon sand moves from the middle of the high-speed airflow, the nylon sand and airflow are fully mixed, effectively increasing the nylon sand content in the high-speed gas output from the mixing pipe, thereby improving the sandblasting effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the high-efficiency mixing sandblasting mechanism provided in the embodiment of this utility model.

[0019] Figure 2 for Figure 1 Another structural diagram of the high-efficiency hybrid sandblasting mechanism.

[0020] Figure 3 A cross-sectional view of the high-efficiency mixing sandblasting mechanism provided in an embodiment of this utility model.

[0021] Figure 4 A radial cross-sectional view of the intake pipe provided in an embodiment of this utility model.

[0022] Figure 5 A radial cross-sectional schematic diagram of the high-efficiency hybrid sandblasting mechanism provided in this embodiment of the utility model.

[0023] Figure 6 A schematic diagram of the control unit provided in an embodiment of this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 100—Inlet pipe; 200—Sand inlet pipe; 300—Mixing pipe

[0026] 400—Limiting component; 410—Inner ring; 420—Outer ring

[0027] 430—Connecting rod; 440—Air vent; 500—Control unit

[0028] 310—Extended delivery pipe; 320—Nozzle; 110—Spiral groove. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-6 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figures 1-6 As shown, a high-efficiency mixing sandblasting mechanism is provided, including an air inlet pipe 100, a sand inlet pipe 200, and a mixing pipe 300. The air inlet pipe 100 is used to transport high-speed airflow; the sand inlet pipe 200 is used to transport nylon sand; the input end of the mixing pipe 300 is connected to the output end of the air inlet pipe 100; wherein, the diameter of the air inlet pipe 100 is larger than that of the sand inlet pipe 200, the output end of the air inlet pipe 100 is provided with a limiting component 400, the sand inlet pipe 200 is installed in the middle position of the air inlet pipe 100 through the limiting component 400, and the output direction of the sand inlet pipe 200 is the same as that of the air inlet pipe 100 and both are set towards the input end of the mixing pipe 300.

[0034] Another embodiment of this utility model provides a mobile phone frame burr removal device, including the above-mentioned high-efficiency mixed sandblasting mechanism.

[0035] Specifically, the high-speed airflow moves along the duct direction of the inlet pipe 100. Simultaneously, the sand inlet pipe 200 is filled with nylon sand. When the high-speed airflow enters the mixing pipe 300 through the output end of the inlet pipe 100, the output end of the inlet pipe 100 covers the output end of the sand inlet pipe 200. The high-speed airflow at the output end of the inlet pipe 100 creates a siphon effect on the nylon sand at the output end of the sand inlet pipe 200. The nylon sand in the sand inlet pipe 200 is then subjected to suction and rapidly moved into the mixing pipe 300 by the high-speed airflow. Compared to existing nylon sand blasting equipment, where the airflow and nylon sand in the inlet pipe 100 and sand inlet pipe 200... After the airflow is input to both sides of the input end of the mixing tube 300, a portion of the airflow and nylon sand move together, while another portion of the airflow and nylon sand near the edge of the mixing tube 300 continues to move along the inner wall of the mixing tube 300, resulting in a low mixing efficiency between the airflow and the nylon sand. The high-efficiency mixing sandblasting mechanism and mobile phone frame burr removal device provided in this embodiment of the invention use high-speed airflow to carry nylon sand into the mixing tube 300. Since the nylon sand moves from the middle position of the high-speed airflow, the nylon sand and airflow are fully mixed, effectively increasing the nylon sand content in the high-speed gas output from the mixing tube 300, thereby improving the sandblasting effect.

[0036] like Figures 1-6 As shown, in another embodiment of this utility model, there is a gap between the inner wall of the air inlet pipe 100 and the outer wall of the sand inlet pipe 200. The gap structure facilitates the smooth movement of gas in the air inlet pipe 100 to the output end of the air inlet pipe 100, further ensuring that the high-speed gas can coat the nylon sand.

[0037] like Figures 1-6As shown, in another embodiment of this utility model, the limiting component 400 includes an inner ring 410, an outer ring 420, and a connecting rod 430. The inner ring 410 is sleeved and fixed on the outer side wall of the sand inlet pipe 200, and the outer ring 420 is fixedly disposed on the inner wall of the air inlet pipe 100. The two ends of the connecting rod 430 are respectively fixedly connected to the outer side wall of the inner ring 410 and the inner side wall of the outer ring 420. In this embodiment, the inner ring 410, the outer ring 420, and the connecting rod 430 are integrally molded from plastic material by injection molding. In other embodiments, the inner ring 410, the outer ring 420, and the connecting rod 430 are integrally molded from metal material by casting. The integral molding structure is beneficial to improving the structural strength of the limiting component 400.

[0038] like Figures 1-6 As shown, in another embodiment of this utility model, the number of connecting rods 430 is multiple sets, and air holes 440 for airflow are provided between adjacent sets of connecting rods 430. The air holes 440 formed by the spaced distribution of multiple sets of connecting rods 430 can guide turbulent airflow, allowing the airflow to move evenly to the output end of the air inlet pipe 100, thereby achieving the effect of stable coating of nylon sand.

[0039] like Figures 1-6 As shown, in another embodiment of this utility model, the inner ring 410 and the outer ring 420 are thickened along the length of the air intake pipe 100, so that both the inner ring 410 and the outer ring 420 are sleeve-shaped structures. The thickened inner ring 410 and outer ring 420 enhance the structural strength. At the same time, the sleeve-shaped structure design helps to further improve the gap maintenance effect between the air intake pipe 100 and the sand inlet pipe 200.

[0040] like Figures 1-6 As shown, in another embodiment of this utility model, the output end of the air inlet pipe 100 is provided with a conical structure, and the diameter of the output end of the air inlet pipe 100 gradually decreases from the limiting component 400 towards the mixing pipe 300. With the conical structure design of the output end, when the gas in the air inlet pipe 100 moves to its output end, the reduced diameter and space compression at the output end significantly increase the gas flow rate while maintaining the same total gas volume, thereby effectively improving gas delivery efficiency. Simultaneously, it also enhances the siphoning effect on the nylon sand in the sand inlet pipe 200.

[0041] like Figures 1-6 As shown, in another embodiment of this utility model, the inner wall of the output end of the air intake pipe 100 is provided with a spiral groove 110 for driving the airflow to move spirally in a preset direction. The spiral groove 110 structure can guide part of the gas to move along the extended spiral path, thereby achieving a speed-up effect and further improving the gas delivery efficiency of the air intake pipe 100.

[0042] like Figures 1-6 As shown, in another embodiment of this utility model, the input ends of both the air inlet pipe 100 and the sand inlet pipe 200 are connected to the output end of a control unit 500, and the middle sections of the air inlet pipe 100 and the sand inlet pipe 200 are fitted together. In this embodiment, the control unit 500 is a solenoid valve, and the use of a solenoid valve structure is beneficial for achieving precise control of the flow rate of nylon sand and gas.

[0043] like Figures 1-6 As shown, in another embodiment of this utility model, the mixing pipe 300 includes an extended conveying pipe 310 and a nozzle 320. The output end of the extended conveying pipe 310 is connected to the output end of the air inlet pipe 100. The nozzle 320 is disposed at the output end of the extended conveying pipe 310 and has a conical sleeve structure, with the end of the nozzle 320 gradually narrowing away from the extended conveying pipe 310. The conical sleeve structure of the nozzle 320 enables secondary acceleration of the nylon sand and gas mixture leaving the extended conveying pipe 310, further increasing the impact force of the nylon sand and gas mixture output by the sandblasting mechanism and improving the burr removal efficiency.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 high-efficiency hybrid sandblasting mechanism, characterized in that, include: Air intake pipe, which is used to deliver high-speed airflow; A sand inlet pipe, which is used to convey nylon sand; A mixing pipe, wherein the input end of the mixing pipe is connected to the output end of the intake pipe; The diameter of the air intake pipe is larger than that of the sand inlet pipe. The output end of the air intake pipe is provided with a limiting component. The sand inlet pipe is installed in the middle position of the air intake pipe through the limiting component. The output direction of the sand inlet pipe is the same as that of the air intake pipe and both are set towards the input end of the mixing pipe.

2. The high-efficiency mixed sandblasting mechanism according to claim 1, characterized in that: There is a gap between the inner wall of the air intake pipe and the outer wall of the sand inlet pipe.

3. The high-efficiency mixing sandblasting mechanism according to claim 2, characterized in that: The limiting assembly includes an inner ring, an outer ring, and a connecting rod. The inner ring is sleeved and fixed on the outer wall of the sand inlet pipe, and the outer ring is fixed on the inner wall of the air inlet pipe. The two ends of the connecting rod are fixedly connected to the outer wall of the inner ring and the inner wall of the outer ring, respectively.

4. The high-efficiency mixing sandblasting mechanism according to claim 3, characterized in that: The number of connecting rods is multiple sets, and air holes are provided between adjacent sets of connecting rods to allow airflow.

5. The high-efficiency mixing sandblasting mechanism according to claim 3, characterized in that: The inner ring and the outer ring are thickened along the length of the air intake pipe, so that both the inner ring and the outer ring are sleeve-shaped structures.

6. The high-efficiency mixing sandblasting mechanism according to claim 1, characterized in that: The output end of the air intake pipe is provided with a conical structure, and the diameter of the output end of the air intake pipe gradually decreases from the limiting component toward the mixing pipe.

7. The high-efficiency mixing sandblasting mechanism according to claim 6, characterized in that: The inner wall of the output end of the air intake pipe is provided with a spiral groove for driving the airflow to move spirally in a preset direction.

8. The high-efficiency hybrid sandblasting mechanism according to any one of claims 1 to 7, characterized in that: The input ends of the air intake pipe and the sand inlet pipe are both connected to the output pipe of a control unit, and the middle sections of the air intake pipe and the sand inlet pipe are fitted together.

9. A device for removing burrs from a mobile phone frame, characterized in that: Includes the high-efficiency mixed sandblasting mechanism as described in any one of claims 1 to 8.

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