Adjustable speed hand office sander

Abstract

The utility model relates to adjustable speed polishing machine technical field discloses a kind of office dog shaping polishing machines of adjustable speed, including shell, rotating pipe and sleeve pipe, the inside installation of shell has heat dissipation component, the outside installation of sleeve pipe has dismounting component, the heat dissipation component includes fan, the inside fixed connection of shell has mounting plate, the inside fixed connection of mounting plate has refrigeration sheet, the outside fixed connection of shell has heat dissipation net, the rear end of shell is located in heat dissipation net. In the utility model, when long time operation, start refrigeration sheet and fan heat dissipation, refrigeration sheet cooling air, fan sends cold air into device, simultaneously, the hot gas generated by it is discharged through heat dissipation net, when replacing polishing head, pull handle to make spring contract, pin rod is separated from round groove, rotates rotating pipe sliding lug and can be disassembled, and it is convenient to replace different mesh.

Description

Technical Field

[0001] This utility model relates to the field of adjustable speed polishing machine technology, and in particular to an adjustable speed handmade figurine forming polishing machine. Background Technology

[0002] During the production of figurines, limitations in processes such as mold making, sculpting, or 3D printing often result in rough edges, uneven surfaces, and coarse textures. The sanding process not only eliminates these imperfections and improves surface smoothness but also highlights details and enhances paint adhesion, making it crucial for shaping the texture and artistic value of the figurine. Whether for mass production or custom creations, precise and efficient sanding equipment is key to ensuring the quality of the figurine.

[0003] Most of the figurine shaping and polishing machines on the market currently use a fixed-speed electric grinding head structure, which polishes through rotating sandpaper, grinding wheels and other consumables, and the speed can be switched according to polishing needs.

[0004] However, existing grinders generate a lot of heat when grinding at high speeds. Traditional heat dissipation methods rely solely on natural air cooling, which has low heat dissipation efficiency and cannot meet the needs of long-term continuous operation. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable speed handmade figurine forming and polishing machine, which aims to improve the problem of high heat generated by the equipment after long-term operation and the inability to achieve rapid heat dissipation in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable-speed handmade figurine forming and polishing machine includes a housing, a rotating tube, and a sleeve. A heat dissipation component is installed inside the housing, and a disassembly component is installed on the outside of the sleeve.

[0008] The heat dissipation assembly includes a fan, which is fixedly connected inside the housing. A mounting plate is fixedly connected inside the housing and located behind the fan. A cooling fin is fixedly connected inside the mounting plate. A heat dissipation mesh is fixedly connected to the outside of the housing and located at the rear end of the housing.

[0009] As a further description of the above technical solution:

[0010] The disassembly assembly includes a locking shell, which is fixedly connected to the outside of the sleeve. The locking shell has a groove inside, and the groove has a circular slot inside. Two protrusions are fixedly connected to the outside of the rotating tube and are slidably connected to the inside of the groove. A pin shell is fixedly connected to the outside of the locking shell, and a pin rod is slidably connected inside the pin shell. The pin rod and the circular slot are engaged with each other, and a spring is sleeved on the outside of the pin rod.

[0011] As a further description of the above technical solution:

[0012] A handle is fixedly connected to the end of the pin away from the locking housing. The handle is located on the outside of the pin housing. A blocking block is fixedly connected to the middle of the pin. The blocking block is fixedly connected to the outside of the spring.

[0013] As a further description of the above technical solution:

[0014] A grinding head is fixedly connected to the outside of the rotating tube, and the grinding head is located at the front end of the outer shell;

[0015] As a further description of the above technical solution:

[0016] A handle is fixedly connected to the outer side of the housing, and the handle is located in the rear half of the housing;

[0017] As a further description of the above technical solution:

[0018] A base is fixedly connected inside the outer shell, and screws are threaded inside the base. A pneumatic motor is installed on the top of the base, and an air inlet pipe and an air outlet pipe are fixedly connected to the top of the pneumatic motor.

[0019] As a further description of the above technical solution:

[0020] An installation box is fixedly connected to the outside of the outer shell, and a pressure regulating valve is installed on the outside of the air inlet pipe. Both the air inlet pipe and the air outlet pipe pass through the installation box.

[0021] As a further description of the above technical solution:

[0022] A knob is mounted on the top of the air pressure regulating valve, and the knob is located on the outside of the mounting box.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this invention, during prolonged operation, the cooling element and fan are activated for heat dissipation. The cooling element rapidly cools the air, and the fan delivers cool air into the device, achieving efficient cooling, protecting the internal structure, and extending service life. The hot air generated by the cooling element is exhausted through the heat dissipation mesh, ensuring normal heat dissipation by the fan and cooling element.

[0025] 2. In this utility model, when the grinding head needs to be replaced during the grinding process, pull the handle to retract the spring, disengage the pin from the round groove, rotate the rotating tube, and let the protrusion slide in the groove to remove the grinding head. The reverse operation can be used to quickly install the grinding head, making it convenient to change the grinding head of different grit according to the grinding needs. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model;

[0027] Figure 2 This is a cross-sectional view of the groove of an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model;

[0028] Figure 3 This is a cross-sectional view of the circular groove of an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model.

[0029] Figure 4 This is a cross-sectional view of the spring in an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the heat dissipation mesh of an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model.

[0031] Figure 6 This is an exploded view of the fan of an adjustable-speed handmade figurine molding and polishing machine proposed in this utility model.

[0032] Legend:

[0033] 1. Outer shell; 2. Pneumatic motor; 3. Sleeve; 4. Locking shell; 5. Groove; 6. Pin shell; 7. Rotary tube; 8. Protrusion; 9. Pin rod; 10. Handle; 11. Spring; 12. Barrier block; 13. Mounting box; 14. Knob; 15. Air pressure regulating valve; 16. Inlet pipe; 17. Outlet pipe; 18. Base; 19. Screw; 20. Fan; 21. Mounting plate; 22. Cooling element; 23. Heat dissipation mesh; 24. Handle; 25. Grinding head; 26. Circular groove. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 , Figure 5 and Figure 6 One embodiment of this utility model is an adjustable speed handmade figurine forming and polishing machine, which includes a shell 1, a rotating tube 7 and a sleeve 3. A heat dissipation component is installed inside the shell 1, and a disassembly component is installed on the outside of the sleeve 3.

[0036] The heat dissipation assembly includes a fan 20, which is fixedly connected to the core of the housing 1 by high-strength bolts. The fan 20 is fixedly connected to the inside of the housing 1, and a mounting plate 21 is fixedly connected inside the housing 1. The mounting plate 21 is welded to the inside of the housing 1 to provide a stable mounting base for the cooling chip 22. The mounting plate 21 is located behind the fan 20, and the cooling chip 22 is fixedly connected inside the mounting plate 21. The cooling chip 22 has high-efficiency cooling performance and can quickly achieve heat exchange. A heat dissipation mesh 23 is fixedly connected to the outside of the housing 1. The heat dissipation mesh 23 can effectively block dust from entering and ensure that hot air can be discharged smoothly. The heat dissipation mesh 23 is located at the rear end of the housing 1.

[0037] Reference Figures 1-4 The disassembly assembly includes a locking housing 4, which is fixedly connected to the outside of the sleeve 3. The locking housing 4 has an L-shaped groove 5 inside. To lock, insert the protrusion into the short groove and rotate it half a turn. The inner wall of the groove 5 is finely polished, resulting in a smooth and flat surface that effectively reduces friction. A circular groove 26 is also provided inside the groove 5, which fits snugly with the pin 9. To lock, the pin 9 is inserted into the circular groove 26; otherwise, it disengages. Two protrusions 8 are fixedly connected to the outside of the rotating tube 7. These protrusions 8 slide within the groove 5. Rotating the rotating tube 7 causes the protrusions 8 on the outside of the rotating tube 7 to slide within the groove 5. The outer side of the locking housing 4 is fixedly connected to the groove 5. A pin housing 6 is fixedly connected, and a pin rod 9 is slidably connected inside the pin housing 6. The pin rod 9 and the circular groove 26 are engaged with each other. A spring 11 is sleeved on the outside of the pin rod 9. The operator only needs to pull the handle 10, and the handle 10 will drive the pin rod 9 to move, causing the spring 11 to be compressed and contract, thereby causing the pin rod 9 to disengage from the circular groove 26. The end of the pin rod 9 away from the locking housing 4 is fixedly connected to the handle 10, which is comfortable to hold and non-slip. The handle 10 is located on the outside of the pin housing 6. A blocking block 12 is fixedly connected to the middle of the pin rod 9, which can effectively limit the compression stroke of the spring 11 and prevent the spring from popping out during operation. The blocking block 12 is fixedly connected to the outside of the spring 11.

[0038] Reference Figure 1 , Figure 5 and Figure 6A grinding head 25 is fixedly connected to the outside of the rotating tube 7. The grinding head 25 is located at the front end of the outer shell 1, and its grit is selected according to different grinding needs, enabling efficient completion of various fine grinding tasks. A handle 24 is fixedly connected to the outside of the outer shell 1. The handle 24 is located in the rear half of the outer shell 1, and its position design conforms to the ergonomic operating habits, making it convenient for operators to easily hold and operate the grinder. A base 18 is fixedly connected inside the outer shell 1, and a screw 19 is threaded inside the base 18. A pneumatic motor 2 is installed on the top of the base 18. The pneumatic motor 2 includes a cylinder to provide working space, a piston to transmit air pressure energy, a crankshaft to convert linear motion into rotary motion, an air distribution valve to control the gas flow direction, a reduction mechanism to adjust the output speed, an outer shell to protect internal components, and a muffler to reduce operating noise, etc., which are existing technologies and will not be described in detail hereafter. As the power core of the grinder, the pneumatic motor 2 adopts pneumatic technology and can provide stable and strong power output. An air inlet pipe 16 and an air outlet pipe 17 are fixedly connected to the top of the pneumatic motor 2, respectively. Both the air inlet pipe 16 and the air outlet pipe 17 are made of high-strength materials. Made of high-strength rubber material, it has good flexibility and sealing performance. A mounting box 13 is fixedly connected to the outside of the outer casing 1. The mounting box 13 has a reasonable pipeline layout inside, which can effectively protect the inlet pipe 16 and the outlet pipe 17 and ensure smooth airflow. A pressure regulating valve 15 is installed on the outside of the inlet pipe 16. The pressure regulating valve 15 includes a valve body providing a flow channel, a valve core controlling the gas flow, a spring providing adjustment force, a diaphragm sensing pressure changes, an adjustment knob setting the pressure value, a pressure gauge displaying the pressure, and a pipe connection to the air circuit. This is existing technology and will not be described in detail hereafter. The air pressure regulating valve 15 can precisely adjust the air pressure entering the pneumatic motor 2, thereby realizing flexible adjustment of the speed of the grinder. The air inlet pipe 16 and the air outlet pipe 17 both pass through the mounting box 13. A knob 14 is installed on the top of the air pressure regulating valve 15. The knob 14 is located on the outside of the mounting box 13. The operator can easily adjust the air pressure regulating valve 15 by rotating the knob 14, thereby precisely controlling the working speed of the grinder to meet the needs of different figurine forming and grinding.

[0039] Working principle: First, when working for a long time, heat dissipation is required. The cooling chip 22 and fan 20 are activated. The cooling chip 22 cools down quickly, which cools the air. At this time, the fan 20 draws in the cold air and quickly sprays the cold air into the device to achieve rapid cooling, protect the internal structure, and extend the service life. In addition, the other side of the cooling chip 22 generates hot air, which is discharged through the heat dissipation mesh. This enhances the heat dissipation function and ensures that the fan 20 and cooling chip 22 dissipate heat normally.

[0040] Secondly, since the grinding head 25 needs to be changed frequently during grinding, you only need to pull the handle 10 to retract the spring 11, which will allow the pin 9 to disengage from the groove 26. Then, by rotating the rotating tube 7, the protrusion 8 can be slid in the groove 5 and removed. Conversely, it can be quickly installed, making it convenient to change the grit according to different degrees.

[0041] Finally, it should be noted that the above description is only 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. An adjustable-speed handmade figurine molding and polishing machine, comprising a shell (1), a rotating tube (7), and a sleeve (3), characterized in that: A heat dissipation assembly is installed inside the outer casing (1), and a disassembly assembly is installed on the outer side of the sleeve (3); The heat dissipation assembly includes a fan (20), which is fixedly connected inside the housing (1). A mounting plate (21) is fixedly connected inside the housing (1). The mounting plate (21) is located behind the fan (20). A cooling fin (22) is fixedly connected inside the mounting plate (21). A heat dissipation mesh (23) is fixedly connected to the outside of the housing (1). The heat dissipation mesh (23) is located at the rear end of the housing (1).

2. The adjustable-speed handmade figurine molding and polishing machine according to claim 1, characterized in that: The disassembly assembly includes a locking shell (4), which is fixedly connected to the outside of the sleeve (3). The locking shell (4) has a groove (5) inside, and a circular groove (26) is formed inside the groove (5). Two protrusions (8) are fixedly connected to the outside of the rotating tube (7). The protrusions (8) are slidably connected inside the groove (5). A pin shell (6) is fixedly connected to the outside of the locking shell (4). A pin rod (9) is slidably connected inside the pin shell (6). The pin rod (9) and the circular groove (26) are engaged with each other. A spring (11) is sleeved on the outside of the pin rod (9).

3. The adjustable-speed handmade figurine molding and polishing machine according to claim 2, characterized in that: A handle (10) is fixedly connected to one end of the pin (9) away from the locking housing (4). The handle (10) is located on the outside of the pin housing (6). A blocking block (12) is fixedly connected to the middle of the pin (9). The blocking block (12) is fixedly connected to the outside of the spring (11).

4. The adjustable-speed handmade figurine molding and polishing machine according to claim 2, characterized in that: A grinding head (25) is fixedly connected to the outside of the rotating tube (7), and the grinding head (25) is located at the front end of the outer shell (1).

5. The adjustable-speed handmade figurine molding and polishing machine according to claim 1, characterized in that: A handle (24) is fixedly connected to the outside of the outer shell (1), and the handle (24) is located in the rear half of the outer shell (1).

6. The adjustable-speed handmade figurine molding and polishing machine according to claim 5, characterized in that: The housing (1) is fixedly connected to a base (18), and the base (18) is threaded with screws (19). A pneumatic motor (2) is installed on the top of the base (18), and an air inlet pipe (16) and an air outlet pipe (17) are fixedly connected to the top of the pneumatic motor (2).

7. The adjustable-speed handmade figurine molding and polishing machine according to claim 6, characterized in that: An installation box (13) is fixedly connected to the outer side of the outer shell (1), and a pressure regulating valve (15) is installed on the outer side of the air inlet pipe (16). Both the air inlet pipe (16) and the air outlet pipe (17) pass through the installation box (13).

8. The adjustable speed handmade figurine molding and polishing machine according to claim 7, characterized in that: A knob (14) is mounted on the top of the air pressure regulating valve (15), and the knob (14) is located on the outside of the mounting box (13).

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