Sand blasting mechanism and sand blasting system

Abstract

The sand blasting mechanism comprises a support, two sand blasting guns and a driving transmission assembly, the two sand blasting guns are arranged in a spaced mode in the first direction and are connected with the support in a swinging mode through two swinging shafts respectively, and the central axes of the two swinging shafts extend in the second direction and are parallel to each other. The driving transmission assembly is installed on the support and drives the two sand blasting guns to swing synchronously in the same direction, and the first direction is perpendicular to the second direction. The two sand blasting guns are arranged and have the respective swing axes, on one hand, the angles and the distances between the two sand blasting guns and the surface of a workpiece are completely the same at the same time, and synchronous work of the two sand blasting guns is truly achieved; and on the other hand, the two sand blasting guns rotate around the respective swinging axes instead of revolving around a swinging center, so that the space required by rotation of the two sand blasting guns around the respective swinging axes is smaller under the same swinging angle.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting technology, and in particular to a sandblasting mechanism and sandblasting system. Background Technology

[0002] A sandblasting gun uses a high-speed airflow generated by compressed air to propel abrasive particles out of a nozzle at high speed. When the abrasive particles impact the surface of an object, they generate impact and friction forces, thereby removing dirt, rust, old paint, and other impurities from the surface, or roughening the surface to improve coating adhesion. It can also be used to create specific textures on the surface for decorative purposes. Existing sandblasting mechanisms typically consist of a sandblasting gun, which has a limited working area, and its sandblasting efficiency needs further improvement. Utility Model Content

[0003] Therefore, this utility model provides a sandblasting mechanism and sandblasting system, in which two sandblasting guns can swing synchronously in the same direction, greatly increasing the working area and sandblasting efficiency.

[0004] To solve the aforementioned technical problem, this utility model provides a sandblasting mechanism, including a bracket, two sandblasting guns, and a drive transmission assembly. The two sandblasting guns are arranged at a distance along a first direction and are oscillatingly connected to the bracket via two swing shafts. The central axes of the two swing shafts extend along a second direction and are parallel to each other. The drive transmission assembly is mounted on the bracket and drives the two sandblasting guns to swing synchronously in the same direction. The first direction and the second direction are perpendicular to each other.

[0005] Preferably, the drive transmission assembly includes a rotary drive component, a turntable, two first connecting rods, and two second connecting rods. The rotary drive component is connected to the bracket, and the turntable is connected to the rotary drive component. A first hinge shaft is connected to the eccentric position of the turntable. One end of each of the two first connecting rods is hinged to the turntable via the first hinge shaft. The other ends of each of the two first connecting rods are connected to one end of each of the two second connecting rods via the two second hinge shafts. The other ends of each of the two second connecting rods are fixedly connected to the swing shaft. The two second connecting rods are parallel to each other.

[0006] The rotation center line of the turntable, the central axis of the first hinge shaft, the central axis of the second hinge shaft, and the central axis of the swing shaft are parallel to each other and all extend along the second direction.

[0007] Preferably, the rotary drive component is a geared motor.

[0008] Preferably, it also includes a dust collection hood, which is connected to the bracket, and the sandblasting nozzle of the sandblasting gun is located inside the dust collection hood.

[0009] This utility model also provides a sandblasting system, including a mobile trolley and the aforementioned sandblasting mechanism, wherein the bracket is connected to the mobile trolley.

[0010] Preferably, the support is a cantilever support, one end of which is connected to the mobile trolley, and the other end of which is suspended and connected to the sandblasting gun.

[0011] Preferably, the mobile trolley is a wall-climbing trolley.

[0012] Preferably, the first direction is the width direction of the moving trolley, and the second direction is the moving direction of the moving trolley.

[0013] Preferably, the sandblasting mechanism is located in front of the moving trolley in the direction of movement, and the bottom of the moving trolley is provided with a dust scraper.

[0014] Preferably, the bottom of the mobile trolley is provided with two dust scrapers respectively connected to the front and rear ends in its direction of movement.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages: The sandblasting mechanism and sandblasting system of this utility model, by setting two sandblasting guns, each with its own swing axis, on the one hand, at the same time, the angle and distance between the two sandblasting guns and the workpiece surface are exactly the same, truly realizing the synchronous operation of the two sandblasting guns; on the other hand, the two sandblasting guns rotate around their respective swing axes, rather than revolving around a swing center, and under the same swing angle, the space required for the two sandblasting guns to rotate around their respective swing axes is smaller. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the sandblasting mechanism disclosed in this utility model from one angle;

[0018] Figure 2 This is a schematic diagram of the sandblasting mechanism disclosed in this utility model from another angle.

[0019] Figure 3 This is a schematic diagram of the sandblasting system disclosed in this utility model.

[0020] Explanation of reference numerals in the accompanying drawings: 1. Sandblasting mechanism; 11. Support; 12. Sandblasting gun; 13. Swing shaft; 14. Rotary drive component; 15. Turntable; 16. First connecting rod; 17. Second connecting rod; 18. First hinge shaft; 19. Second hinge shaft; 110. Dust collection hood; 2. Moving trolley; 21. Dust scraper. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0022] Example 1: See Figure 1 and Figure 2 As shown, this utility model provides an embodiment of a sandblasting mechanism.

[0023] The sandblasting mechanism 1 includes a bracket 11, two sandblasting guns 12 and a drive transmission assembly. The two sandblasting guns 12 are arranged at a distance along a first direction and are oscillatingly connected to the bracket 11 via two swing shafts 13. The central axes of the two swing shafts 13 extend along a second direction and are parallel to each other. The drive transmission assembly is mounted on the bracket 11 and drives the two sandblasting guns 12 to swing synchronously and in the same direction. The first direction and the second direction are perpendicular to each other.

[0024] In the above text, the bracket 11 serves as the mounting foundation for the sandblasting mechanism 1, supporting and mounting the sandblasting gun 12 and the drive transmission assembly to ensure the stability of the sandblasting mechanism 1 during operation. The sandblasting gun 12 is the core actuator of the entire sandblasting mechanism 1, responsible for performing the specific sandblasting operation. The sandblasting gun 12 can spray sand particles onto the workpiece surface at a certain speed and angle to achieve cleaning, rust removal, and surface treatment. By setting two sandblasting guns 12, each with its own swing axis, on the one hand, the angle and distance between the two sandblasting guns 12 and the workpiece surface are exactly the same at any given time, truly achieving synchronous operation of the two sandblasting guns 12; on the other hand, the two sandblasting guns 12 rotate around their respective swing axes, rather than revolving around a single swing center. At the same swing angle, the space required for the two sandblasting guns 12 to rotate around their respective swing axes is smaller. The drive transmission assembly is used to drive the sandblasting gun 12 to swing, realizing the automated swing of the sandblasting gun 12.

[0025] In this embodiment, the drive transmission assembly includes a rotary drive 14, a turntable 15, two first connecting rods 16, and two second connecting rods 17. The rotary drive 14 is connected to the bracket 11, and the turntable 15 is connected to the rotary drive 14. A first hinge shaft 18 is provided at the eccentric position of the turntable 15. One end of each of the two first connecting rods 16 is hinged to the turntable 15 through the first hinge shaft 18. One end of each of the two second connecting rods 17 is hinged to the other end of each of the two first connecting rods 16 through the two second hinge shafts 19. The other ends of each of the two second connecting rods 17 are fixedly connected to the swing shaft 13. The two second connecting rods 17 are parallel to each other.

[0026] The rotation center line of the turntable 15, the central axis of the first hinge shaft 18, the central axis of the second hinge shaft 19, and the central axis of the swing shaft 13 are parallel to each other and all extend along the second direction.

[0027] The drive transmission assembly described above converts the rotational motion of the rotary drive 14 into the oscillating motion of the swing shaft 13. The rotary drive 14 serves as the power source for the entire drive transmission assembly, providing rotational power to the system. The turntable 15 converts its circular motion into the oscillation of the connecting rod via its eccentrically positioned first hinge shaft 18. When the rotary drive 14 is activated, the turntable 15 rotates around its rotation centerline. The first connecting rod 16, acting as an intermediate link in the transmission, transmits the motion of the turntable 15 to the second connecting rod 17. Because one end of the first connecting rod 16 is hinged to the eccentric position of the turntable 15, it undergoes complex planar motion, including oscillation and a certain degree of translation, as the turntable 15 rotates. The second connecting rod 17 transmits the motion of the first connecting rod 16 to the swing shaft 13, ultimately achieving the oscillation of the swing shaft 13. When the rotary drive 14 is activated, it drives the turntable 15 to perform circular motion around its rotation centerline. Because the first hinge shaft 18 is located at an eccentric position on the turntable 15, as the turntable 15 rotates, the first hinge shaft 18 will perform circular motion, thereby driving the two first connecting rods 16 to perform oscillating motion. The oscillation of the first connecting rods 16 is transmitted to the second connecting rod 17 through the second hinge shaft 19, causing the second connecting rod 17 to also perform oscillating motion. Since the other end of the second connecting rod 17 is fixedly connected to the oscillating shaft 13, the oscillation of the second connecting rod 17 will drive the oscillating shaft 13 to perform oscillating motion around its central axis, thus realizing the conversion from rotational motion to oscillating motion. The rotation center line of the turntable 15, the central axis of the first hinge shaft 18, the central axis of the second hinge shaft 19, and the central axis of the oscillating shaft 13 are parallel to each other and all extend along the second direction. This parallel relationship ensures the stability and accuracy of the entire transmission process.

[0028] In this embodiment, the rotary drive component 14 is a geared motor.

[0029] The swing speed of the sandblasting gun 12 should not be too fast. Therefore, by setting the rotary drive 14 as a geared motor, the swing speed of the sandblasting gun can be controlled within a suitable range.

[0030] Preferably, it also includes a dust collection hood 110, which is connected to the bracket 11, and the sandblasting nozzle of the sandblasting gun 12 is located inside the dust collection hood 110.

[0031] When the sandblasting mechanism 1 sprays abrasive onto the surface of the workpiece, the surface is polished, thus generating dust. A dust collection hood 110 is installed to collect dust, fumes, and other pollutants. By creating a negative pressure environment, airflow draws the dust, fumes, and other pollutants into the hood, which are then transported through connected pipes to subsequent purification equipment for treatment, thereby achieving the purpose of collecting and purifying pollutants. The opening of the dust collection hood 110 is preferably made of a flexible contact material to ensure a tight fit between the opening and the workpiece, preventing dust leakage outside the dust collection hood 110. In this embodiment, the dust collection hood 110 is a rectangular dust collection hood.

[0032] Example 2: See Figure 3 As shown, this utility model provides an embodiment of a sandblasting system.

[0033] The sandblasting system includes a mobile trolley 2 and the aforementioned sandblasting mechanism 1, with the aforementioned bracket 11 connected to the mobile trolley 2.

[0034] The mobile trolley 2 primarily serves as a load-bearing and movement mechanism in the sandblasting system. It carries the sandblasting mechanism 1 between different work areas, allowing sandblasting operations to be performed in various locations, thus increasing the flexibility and applicability of the sandblasting system. For example, in the sandblasting of large workpieces, the mobile trolley can accurately move the sandblasting mechanism to the area requiring sandblasting, improving work efficiency. The structure and load-bearing capacity of the mobile trolley 2 must meet the requirement of stably carrying the sandblasting mechanism 1. The mobile trolley 2 and the sandblasting mechanism 1 work in tandem within the sandblasting system. The mobile trolley 2 provides a platform for the sandblasting mechanism 1 to move, enabling it to reach different work positions; while the sandblasting mechanism 1 performs the sandblasting operation after the mobile trolley 2 reaches the designated position. Their coordinated work allows the sandblasting system to efficiently and flexibly complete various sandblasting tasks.

[0035] In this embodiment, the bracket 11 is a cantilever bracket. One end of the cantilever bracket is connected to the mobile trolley 2, and the other end of the cantilever bracket is suspended and connected to the sandblasting gun 12.

[0036] The sandblasting mechanism 1 generally performs sandblasting work in the front, back, left and right of the mobile trolley 2. Therefore, the bracket 11 is set as a cantilever bracket to facilitate the installation of the sandblasting mechanism 1.

[0037] In this embodiment, the aforementioned mobile vehicle 2 is a wall-climbing vehicle.

[0038] A wall-climbing trolley is a special robot that can climb vertical or inclined walls and carry various equipment to perform operations. It is generally magnetically or vacuum-adsorbed. In this embodiment, the wall-climbing trolley is magnetically adsorbed onto the workpiece and moves along it. The moving trolley 2 drives the sandblasting mechanism 1 to polish the surface of the vertical or downward-facing workpiece.

[0039] In this embodiment, the first direction is the width direction of the mobile trolley 2, and the second direction is the movement direction of the mobile trolley 2.

[0040] The sandblasting gun 12 swings to the left and right sides of the moving carriage 2, forming a Z-shaped grinding trajectory as the moving carriage 2 moves.

[0041] In this embodiment, the sandblasting mechanism 1 is located in front of the moving trolley 2 in the direction of movement, and the bottom of the moving trolley 2 is provided with a dust scraper 21.

[0042] As the mobile trolley 2 moves forward, the sandblasting mechanism 1 at the front treats the surface of the workpiece. Most of the dust generated during this process is collected by the dust collection hood 110. However, some dust adhering to the workpiece surface is difficult to remove by vacuum suction. At this point, the scraper blade 21 acts like a broom, sweeping away the dust from the workpiece surface. The scraper blade 21 is typically elongated, with a flat scraping edge that contacts the workpiece surface. In this embodiment, the scraper blade is made of rubber: rubber has good elasticity and wear resistance. When in contact with the surface being cleaned, the rubber scraper blade adheres well to the surface, effectively scraping away dust and debris.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A sandblasting mechanism, characterized in that, The device includes a bracket, two sandblasting guns, and a drive transmission assembly. The two sandblasting guns are arranged at a distance along a first direction and are oscillatingly connected to the bracket via two swing shafts. The central axes of the two swing shafts extend along a second direction and are parallel to each other. The drive transmission assembly is mounted on the bracket and drives the two sandblasting guns to swing synchronously in the same direction. The first direction and the second direction are perpendicular to each other.

2. The sandblasting mechanism according to claim 1, characterized in that, The drive transmission assembly includes a rotary drive component, a turntable, two first connecting rods, and two second connecting rods. The rotary drive component is connected to the bracket, and the turntable is connected to the rotary drive component. A first hinge shaft is connected to the eccentric position of the turntable. One end of each of the two first connecting rods is hinged to the turntable via the first hinge shaft. The other ends of each of the two first connecting rods are connected to one end of each of the two second connecting rods via the two second hinge shafts. The other ends of each of the two second connecting rods are fixedly connected to the swing shaft. The two second connecting rods are parallel to each other. The rotation center line of the turntable, the central axis of the first hinge shaft, the central axis of the second hinge shaft, and the central axis of the swing shaft are parallel to each other and all extend along the second direction.

3. The sandblasting mechanism according to claim 2, characterized in that, The rotary drive component is a geared motor.

4. The sandblasting mechanism according to claim 1, characterized in that, It also includes a dust collection hood, which is connected to the bracket, and the sandblasting nozzle of the sandblasting gun is located inside the dust collection hood.

5. A sandblasting system comprising a mobile trolley and a sandblasting mechanism as described in any one of claims 1 to 4, wherein the bracket is connected to the mobile trolley.

6. The sandblasting system according to claim 5, characterized in that, The support is a cantilever support, with one end connected to the mobile trolley and the other end suspended and connected to the sandblasting gun.

7. The sandblasting system according to claim 5, characterized in that, The mobile vehicle is a wall-climbing vehicle.

8. The sandblasting system according to claim 5, characterized in that, The first direction is the width direction of the moving trolley, and the second direction is the moving direction of the moving trolley.

9. The sandblasting system according to claim 5, characterized in that, The sandblasting mechanism is located in front of the moving trolley in the direction of movement, and the bottom of the moving trolley is equipped with a dust scraper.

10. The sandblasting system according to claim 9, characterized in that, The bottom of the mobile trolley is equipped with two dust scrapers that are respectively connected to the front and rear ends of its movement direction.

Images