A swing-type sandblasting mechanism
By introducing an array of distributed sandblasting heads, a precisely driven oscillating drive assembly, and a stable feeding assembly into the sandblasting mechanism, the problems of small sandblasting coverage, unstable oscillation, and discontinuous feeding are solved, achieving large-area uniform sandblasting and flexible adaptation, thus improving the sandblasting efficiency and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HENGYAN ALUMINIUM CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing swing-type sandblasting mechanisms suffer from problems such as limited sandblasting coverage, unstable sandblasting head swing, discontinuous material supply, and poor installation adaptability.
It employs an array of distributed sandblasting heads, a precision-driven oscillating drive assembly, a stable sandblasting feed assembly, and a highly adaptable main frame, including high-precision ball bearings, pressure-resistant and wear-resistant flexible feed hoses, and a servo motor reducer, to achieve stable and precise oscillation of the sandblasting heads and continuous feed, thereby enhancing installation adaptability.
It improves the sandblasting coverage and uniformity, ensures the consistency and stability of sandblasting effect, adapts to the sandblasting needs of different workpieces, and extends the service life of the equipment.
Smart Images

Figure CN224488778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandblasting equipment technology, specifically to a swing-type sandblasting mechanism. Background Technology
[0002] In industries such as machinery manufacturing and hardware processing, sandblasting is a commonly used surface treatment process for workpieces. It can remove rust, oil, oxide layers, etc. from the workpiece surface and provide a suitable surface roughness for subsequent coating, electroplating and other processes.
[0003] The existing oscillating sandblasting mechanism still has the following problems when in use: the sandblasting coverage is limited, making it difficult to uniformly sandblast large workpieces; the stability and accuracy of the sandblasting head oscillation are poor, affecting the sandblasting effect; the continuity and stability of the sandblasting medium supply are insufficient, which easily leads to sandblasting interruption or unevenness; the overall installation adaptability of the mechanism is poor, making it difficult to flexibly adapt to different working scenarios and equipment. Utility Model Content
[0004] (a) Technical problems to be solved.
[0005] To address the shortcomings of existing technologies, this utility model provides a swing-type sandblasting mechanism, which includes an array of sandblasting heads, a precisely driven swing drive assembly, a stable sandblasting feed assembly, and a highly adaptable main frame. This solves the problems of uneven sandblasting coverage, unstable swing, discontinuous feed, and poor installation adaptability mentioned in the prior art.
[0006] (ii) Technical solution.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a swing-type sandblasting mechanism, comprising a main frame, a sandblasting component, a sandblasting feeding component, and a swing drive component. The main frame includes a bottom frame, a connecting frame, and a top frame. The main frame serves as an overall support structure, providing an installation foundation and stable support for each component. The sandblasting component is used to perform sandblasting operations, spraying sandblasting media onto the surface of the workpiece. The sandblasting feeding component is responsible for continuously supplying sandblasting media to the sandblasting component. The swing drive component drives the sandblasting component to swing, expanding the sandblasting coverage area.
[0008] The top frame of the main frame has three bearing supports arranged in an array at each end. Bearing assembly holes are provided between the two side walls of the bearing supports. The bearing supports and bearing assembly holes are used to install the rotating bearings of the sandblasting assembly, providing rotational support for the swing of the sandblasting head.
[0009] The sandblasting assembly includes three sandblasting heads arranged in an array between the bottom frame and the top frame. Each sandblasting head has a connecting shaft fixedly connected to its center at both ends. A rotating bearing is mounted on the outside of the connecting shaft and installed in a bearing mounting hole on its corresponding side. The bottom end of each sandblasting head has multiple sandblasting nozzles. The sandblasting head can swing relative to the main frame. The sandblasting nozzles are used for sandblasting operations. The three arrayed sandblasting heads, together with the multiple sandblasting nozzles, can cover a larger area, improving sandblasting efficiency and uniformity. The connecting shafts and rotating bearings ensure stable swinging of the sandblasting heads.
[0010] The sandblasting feed assembly includes a sandblasting feeder fixedly installed at the bottom of the top frame. The front end of the sandblasting feeder is provided with a feed connector. The sandblasting feeder is connected to three sandblasting heads through a feed hose to provide sandblasting medium to the sandblasting assembly. The feed connector is used to connect to an external sandblasting medium source. The sandblasting feeder delivers the medium to the sandblasting heads through the feed hose to ensure continuous and stable supply.
[0011] The swing drive assembly consists of pulleys, a reduction drive, and a transmission belt. The reduction drive is fixedly installed in the middle of one side of the top of the top frame. The pulleys are fixedly connected to one drive end of the reduction drive and one end of three connecting shafts on one side. The upper pulley and the three lower pulleys are respectively connected by a transmission belt to provide power transmission for the swing operation of the sandblasting assembly. The reduction drive outputs power, which is transmitted through the pulleys and the transmission belt to drive the sandblasting head to swing precisely, controlling the swing frequency and angle.
[0012] As a further improvement of this utility model: the bottom frame of the main frame is fixedly connected to the top frame through its top connecting frame, and the main frame is an integrated frame structure to ensure the overall strength and stability of the mechanism. The integrated frame is connected by welding or high-strength bolts, which can withstand the vibration and impact during sandblasting operations and ensure long-term stable operation.
[0013] As a further improvement of this utility model: the sandblasting head of the sandblasting component is long and narrow, and multiple sandblasting nozzles are evenly distributed along the length of the sandblasting head, which can realize large-area and uniform sandblasting operations. The long and narrow sandblasting head, combined with the evenly distributed sandblasting nozzles, can make the sandblasting medium cover the workpiece surface more evenly and improve the processing effect.
[0014] As a further improvement of this utility model: the feed hose of the swing drive assembly is made of pressure-resistant and wear-resistant flexible material, with one end connected to the outlet at the bottom of the sandblasting feeder and the other end connected to the inlet at the top of the sandblasting head. It can adapt to deformation when the sandblasting head swings, ensuring a stable supply of sandblasting media. The flexible feed hose can flexibly deform with the swing of the sandblasting head, avoiding obstruction of media supply due to deformation. At the same time, its pressure-resistant and wear-resistant properties extend its service life.
[0015] As a further improvement of this utility model: the reduction drive of the sandblasting feeding assembly is a servo motor equipped with a reducer. Through the cooperation of the transmission belt and pulley, the swing frequency and angle of the three sandblasting heads of the sandblasting assembly are precisely controlled. The servo motor with the reducer can achieve high-precision speed and angle control, making the swing of the sandblasting head more accurate and adaptable to the sandblasting requirements of different workpieces.
[0016] As a further improvement of this utility model: the rotating bearing adopts a high-precision ball bearing, which reduces the frictional resistance when the sandblasting head swings. The rolling friction of the balls in the high-precision ball bearing is small, which allows the sandblasting head to swing more smoothly and reduces energy loss and component wear.
[0017] As a further improvement of this utility model: a mounting base is fixedly connected to each of the front and rear sides of the bottom frame. An oblong hole is provided between the upper and lower side walls of the mounting base. The oblong hole can be used with bolts and other fasteners to adapt to the main frame installation work in different installation scenarios. The oblong hole provides a certain adjustment space for the installation position, which is convenient for docking and installation with different equipment or tooling, and improves the adaptability of the mechanism.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. In this utility model, by setting three sandblasting heads distributed in an array, and with multiple sandblasting nozzles evenly distributed on each sandblasting head, the sandblasting coverage area and uniformity are greatly improved, which can more efficiently perform surface treatment on large-area workpieces and solve the problem of insufficient sandblasting coverage in traditional mechanisms.
[0020] 2. In this utility model, a swing drive assembly consisting of a speed reduction drive, pulley and transmission belt is used in conjunction with a high-precision ball bearing to achieve stable and precise swing control of the sandblasting head. The swing frequency and angle can be flexibly adjusted to ensure the consistency and stability of the sandblasting effect and improve the unstable swing of the traditional mechanism.
[0021] 3. In this utility model, a pressure-resistant and wear-resistant flexible material feeding hose is used in conjunction with a sandblasting feeder. While ensuring a stable supply of sandblasting medium, it can adapt to deformation as the sandblasting head swings, avoiding interruption or obstruction of the supply, thus solving the problem of supply continuity and stability.
[0022] 4. In this utility model, the bottom frame of the main frame is provided with a mounting base with a waist-shaped hole, which provides flexible adjustment space for the installation of the mechanism, can adapt to the installation requirements of different working scenarios and equipment, and enhances the practicality and versatility of the mechanism. Attached Figure Description
[0023] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;
[0024] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;
[0025] Figure 3 This is a perspective view of the main frame of this utility model;
[0026] Figure 4 This is a perspective view of the sandblasting assembly, the swing drive assembly, and the sandblasting feeding assembly of this utility model.
[0027] In the diagram: 1. Main frame; 2. Sandblasting assembly; 3. Sandblasting feed assembly; 4. Swing drive assembly; 11. Bottom frame; 12. Connecting frame; 13. Top frame; 14. Bearing support; 15. Bearing assembly hole; 16. Mounting seat; 17. Waist-shaped hole; 21. Sandblasting head; 22. Connecting shaft; 23. Rotary bearing; 24. Sandblasting nozzle; 31. Sandblasting feeder; 32. Feed connector; 33. Feed hose; 41. Pulley; 42. Gear reducer; 43. Drive belt. Detailed Implementation
[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0029] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] Please see Figures 1-4In this embodiment of the utility model, a swing-type sandblasting mechanism includes a main frame 1, a sandblasting component 2, a sandblasting feeding component 3, and a swing drive component 4. The main frame 1 includes a bottom frame 11, a connecting frame 12, and a top frame 13. The main frame 1 serves as an overall support structure, providing an installation foundation and stable support for each component. The sandblasting component 2 is used to perform sandblasting operations, spraying sandblasting media onto the surface of the workpiece. The sandblasting feeding component 3 is responsible for continuously supplying sandblasting media to the sandblasting component 2. The swing drive component 4 drives the sandblasting component 2 to swing, expanding the sandblasting coverage area.
[0032] Three bearing supports 14 are installed in an array at each end of the top frame 13 of the main frame 1. Bearing assembly holes 15 are provided between the two side walls of the bearing supports 14. The bearing supports 14 and the bearing assembly holes 15 are used to install the rotating bearing 23 of the sandblasting assembly 2, providing rotational support for the swing of the sandblasting head 21.
[0033] The sandblasting assembly 2 includes three sandblasting heads 21 arranged in an array between the bottom frame 11 and the top frame 13. Each sandblasting head 21 has a connecting shaft 22 fixedly connected to the center of each end. A rotating bearing 23 is mounted on the outside of the connecting shaft 22 and installed in the bearing mounting hole 15 on the corresponding side. The bottom of the sandblasting head 21 is provided with multiple sandblasting nozzles 24. The sandblasting head 21 can swing relative to the main frame 1. The sandblasting nozzles 24 are used for sandblasting operations. The three arrayed sandblasting heads 21, together with the multiple sandblasting nozzles 24, can cover a larger area and improve sandblasting efficiency and uniformity. The connecting shaft 22 and the rotating bearing 23 ensure the stable swing of the sandblasting head 21.
[0034] The sandblasting feed assembly 3 includes a sandblasting feeder 31 fixedly installed at the bottom of the top frame 13. The front end of the sandblasting feeder 31 is provided with a feed connector 32. The sandblasting feeder 31 is connected to three sandblasting heads 21 through a feed hose 33 to provide sandblasting medium to the sandblasting assembly 2. The feed connector 32 is used to connect to an external sandblasting medium source. The sandblasting feeder 31 delivers the medium to the sandblasting head 21 through the feed hose 33 to ensure continuous and stable supply.
[0035] The swing drive assembly 4 consists of a pulley 41, a reduction drive 42, and a transmission belt 43. The reduction drive 42 is fixedly installed on the middle of one side of the top of the top frame 13. The pulley 41 is fixedly connected to one drive end of the reduction drive 42 and one end of one of the three connecting shafts 22 on one side. The upper pulley 41 and the three lower pulleys 41 are respectively connected by a transmission belt 43 to provide power transmission for the swing operation of the sandblasting assembly 2. The reduction drive 42 outputs power, which is transmitted through the pulley 41 and the transmission belt 43 to drive the sandblasting head 21 to swing precisely, controlling the swing frequency and angle.
[0036] The bottom frame 11 of the main frame 1 is fixedly connected to the top frame 13 through its top connecting frame 12. The main frame 1 is an integrated frame structure, which ensures the overall strength and stability of the mechanism. The integrated frame is connected by welding or high-strength bolts, which can withstand the vibration and impact during sandblasting operations and ensure long-term stable operation.
[0037] The sandblasting head 21 of the sandblasting assembly 2 is long and narrow, with multiple sandblasting nozzles 24 evenly distributed along the length of the sandblasting head 21, which can realize large-area and uniform sandblasting operations. The long and narrow sandblasting head 21, combined with the evenly distributed sandblasting nozzles 24, can make the sandblasting medium cover the workpiece surface more evenly and improve the processing effect.
[0038] The feed hose 33 of the swing drive assembly 3 is made of pressure-resistant and wear-resistant flexible material. One end is connected to the discharge port at the bottom of the sandblasting feeder 31, and the other end is connected to the feed port at the top of the sandblasting head 21. It can adapt to deformation when the sandblasting head 21 swings, ensuring a stable supply of sandblasting media. The flexible feed hose 33 can flexibly deform with the swing of the sandblasting head 21, avoiding the impact of media supply due to deformation obstruction. At the same time, its pressure-resistant and wear-resistant properties extend its service life.
[0039] The reduction drive 42 of the sandblasting feeding assembly 4 is a servo motor equipped with a reducer. Through the transmission belt 43 and pulley 41, it precisely controls the swing frequency and angle of the three sandblasting heads 21 of the sandblasting assembly 2. The servo motor with the reducer can achieve high-precision speed and angle control, making the swing of the sandblasting head 21 more accurate and adaptable to the sandblasting requirements of different workpieces.
[0040] The rotating bearing 23 adopts a high-precision ball bearing, which reduces the frictional resistance when the sandblasting head 21 swings. The rolling friction of the balls in the high-precision ball bearing is small, which allows the sandblasting head 21 to swing more smoothly, reducing energy loss and component wear.
[0041] Each end of the bottom frame 11 is fixedly connected to a mounting base 16 on both the front and rear sides. The mounting base 16 has a waist-shaped hole 17 between its upper and lower side walls. The waist-shaped hole 17 can be used with bolts and other fasteners to adapt to the installation of the main frame 1 in different installation scenarios. The waist-shaped hole 17 provides a certain amount of adjustment space for the installation position, which is convenient for docking with different equipment or tooling and improves the adaptability of the mechanism.
[0042] The working principle of this utility model is as follows: During installation, the mechanism is fixed in the working position by bolts through the waist-shaped hole 17 of the mounting base 16 on the bottom frame 11. The feed connector 32 is connected to an external sandblasting medium source. During operation, the reduction drive 42 is started, and the pulley 41 and the transmission belt 43 drive the three sandblasting heads 21 to swing around the connecting shaft 22 and the rotating bearing 23. The sandblasting feeder 31 delivers the sandblasting medium to the sandblasting head 21 through the feed hose 33, and it is sprayed out from the sandblasting nozzle 24 to sandblast the workpiece below. During the sandblasting process, the sandblasting head 21 swings continuously to expand the sandblasting range. The feed hose 33 adapts to the deformation of the swing to ensure stable feeding. When processing different workpieces, the swing frequency and angle of the sandblasting head 21 can be adjusted by controlling the reduction drive 42 to adapt to different sandblasting requirements.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A swing-type sandblasting mechanism, comprising a main frame (1), a sandblasting assembly (2), a swing drive assembly (3), and a sandblasting feeding assembly (4), wherein the main frame (1) comprises a bottom frame (11), a connecting frame (12), and a top frame (13). Its features are: The top frame (13) of the main frame (1) has three bearing supports (14) arranged in an array at both ends, and bearing assembly holes (15) are provided between the two side walls of the bearing supports (14). The sandblasting assembly (2) includes three sandblasting heads (21) arranged in an array between the bottom frame (11) and the top frame (13). Each of the two ends of the sandblasting head (21) is fixedly connected to a connecting shaft (22). A rotating bearing (23) is mounted on the outside of the connecting shaft (22). The rotating bearing (23) is installed in the bearing mounting hole (15) on its corresponding side. The bottom end of the sandblasting head (21) is provided with multiple sandblasting nozzles (24). The sandblasting feed assembly (4) includes a sandblasting feeder (31) fixedly installed at the bottom of the top frame (13). The front end of the sandblasting feeder (31) is provided with a feed connector (32). The sandblasting feeder (31) is connected to three sandblasting heads (21) through a feed hose (33). The swing drive assembly (3) consists of a pulley (41), a speed reducer (42), and a transmission belt (43). The speed reducer (42) is fixedly installed on the middle of one side of the top of the top frame (13). The pulley (41) is fixedly connected to one side of the drive end of the speed reducer (42) and one end of one side of the three connecting shafts (22). The upper pulley (41) and the three lower pulleys (41) are respectively connected by a transmission belt (43).
2. The oscillating sandblasting mechanism according to claim 1, characterized in that: The bottom frame (11) of the main frame (1) is fixedly connected to the top frame (13) through its top connecting frame (12).
3. The oscillating sandblasting mechanism according to claim 1, characterized in that: The sandblasting assembly (2) has a long strip-shaped sandblasting head (21) with multiple sandblasting nozzles (24) evenly distributed along the length of the sandblasting head (21).
4. The oscillating sandblasting mechanism according to claim 1, characterized in that: The feeding hose (33) of the swing drive assembly (3) is made of pressure-resistant and wear-resistant flexible material, and one end is connected to the discharge port at the bottom of the sandblasting feeder (31), and the other end is connected to the feed port at the top of the sandblasting head (21).
5. The oscillating sandblasting mechanism according to claim 1, characterized in that: The reduction drive (42) of the sandblasting feed assembly (4) is a servo motor equipped with a reducer.
6. The oscillating sandblasting mechanism according to claim 1, characterized in that: The rotating bearing (23) is a high-precision ball bearing.
7. The oscillating sandblasting mechanism according to claim 1, characterized in that: The bottom frame (11) has a mounting base (16) fixedly connected to each of its front and rear sides. The mounting base (16) has a waist-shaped hole (17) between its upper and lower side walls.