A sand blasting machine for cleaning the surface of a rack

Abstract

This utility model relates to the field of rack cleaning technology, specifically to a sandblasting machine for cleaning impurities on rack surfaces. The equipment includes an outer tank and a coaxially arranged inner tank. Three rack rings are evenly distributed on the outer wall of the inner tank and connected to a sandblasting pipe. A motor drives a transmission gear via a drive shaft to mesh with a gear on the side of the rack rings, enabling horizontal movement of the rack rings. Simultaneously, a belt drives a rotating platform that carries the rack to rotate synchronously. The lower gear of the rack ring meshes with a rotating gear of the sandblasting pipe, driving the sandblasting pipe to rotate 360° around the inner tank, forming a composite sandblasting trajectory. Infrared sensors at the ends of the nozzle branches detect the rack surface in real time, triggering valve opening and closing via infrared receivers. The outer tank cover prevents splashing, and the sand inlet supports dynamic sand replenishment. This equipment, through the synergy of mechanical motion and intelligent sensing, is suitable for the efficient cleaning needs of complex industrial rack surfaces, especially for precision cleaning of uneven, hollow, and interwoven structures, meeting industrial-grade continuous operation standards.

Description

Technical Field

[0001] This utility model relates to the field of rack cleaning technology, and in particular to a sandblasting machine for cleaning impurities on the rack surface. Background Technology

[0002] As the core support structure of industrial equipment, the frame is easily contaminated with oil, rust, oxide scale and other impurities during manufacturing, transportation and installation, which affects its precision, stability and service life. Traditional cleaning methods such as manual grinding and chemical cleaning have problems such as inefficiency, low cost and high pollution. Sandblasting has become the mainstream cleaning method due to its high efficiency and environmental protection.

[0003] Existing sandblasting machines mostly use fixed nozzles or single-direction sandblasting modes, which are difficult to adapt to the complex shapes of uneven and hollowed-out surfaces on the machine frame. Some equipment achieves cleaning by increasing the number of nozzles or manually adjusting the angle, but this has drawbacks such as high energy consumption, serious sand waste, and low degree of automation.

[0004] Traditional sandblasting machines cannot accurately identify solid and hollow areas on the machine frame surface, resulting in continuous sandblasting and a large waste of abrasive material. Sandblasting in hollow areas is not only ineffective but may also damage the internal structure of the equipment. At the same time, fixing the nozzle requires frequent machine stops to adjust the angle, which affects production efficiency. Manual intervention increases operational risks and costs. In addition, traditional equipment lacks a dynamic sandblasting control mechanism and cannot optimize sandblasting parameters in real time according to the surface characteristics of the workpiece, resulting in inconsistent cleaning effects. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a sandblasting machine for cleaning impurities on the frame surface, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a sandblasting machine for cleaning impurities on the surface of a machine frame, including an outer tank and an inner tank coaxially arranged inside the outer tank. Three rack rings are evenly arranged horizontally on the outer wall of the inner tank, and three sandblasting pipes are arranged on the lower side of the rack rings. A conveying chamber is provided inside the outer tank. The outer end of the sandblasting pipe is rotatably connected to the inner wall of the conveying chamber. The inner side of the sandblasting pipe penetrates the side wall of the inner tank and extends into the inner tank. A sandblasting head is provided at the end of the sandblasting pipe. A motor is provided on the outer side of the inner tank. A drive shaft is provided at the output end of the motor. A drive gear corresponding to the rack rings is provided in the middle section of the drive shaft. A belt is provided at the lower end of the drive shaft. A rotating platform is provided at the center of the bottom surface of the inner tank. The rotating platform is connected to the belt.

[0008] Furthermore, the end of the sandblasting head is provided with a nozzle branch, the interior of which is connected to the sandblasting pipe, and a valve is provided at the end of each nozzle branch.

[0009] Furthermore, a side gear is provided on the outer side of the rack ring, and a lower gear is provided on the lower surface of the rack ring. The side gear meshes with the transmission gear, and a rotating gear is provided on the outer side of the sandblasting pipe located inside the inner tank. The lower gear meshes with the rotating gear.

[0010] Furthermore, an infrared receiver is installed on the inner wall of the inner tank, and the position of the infrared receiver corresponds to that of the infrared sensor.

[0011] Furthermore, an infrared sensor is installed on one side of the nozzle branch of the valve, and the infrared sensor is electrically connected to the valve.

[0012] Furthermore, the outer wall of the outer tank is provided with a sand inlet, which is connected to the conveying chamber, and an organic cover is provided at the upper opening of the outer tank.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with a collaborative detection system of infrared sensors and infrared receivers; by real-time identification of solid and hollow areas on the frame surface, it can intelligently control the start and stop of sandblasting, effectively reducing sand waste and lowering cleaning costs;

[0015] 2. This utility model is equipped with a linkage and rotation structure between the inner tank and the sandblasting pipe; it can achieve 360° sandblasting coverage without dead angles, eliminates the need for manual adjustment of the nozzle angle, improves cleaning efficiency by more than 30%, and avoids the production interruption problem of frequent machine stoppages for adjustment in traditional fixed nozzles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This utility model Figure 2 Schematic diagram of the structure at point B.

[0021] Figure 5 This is a schematic diagram of the upper cross-sectional structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the enlarged rack and pinion structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer tank; 11. Machine cover; 12. Sand inlet; 13. Conveying chamber; 14. Sandblasting pipe; 141. Rotary gear; 15. Inner tank; 2. Motor; 21. Drive shaft; 22. Drive gear; 23. Belt; 24. Rack ring; 241. Side gear; 242. Lower gear; 25. Sandblasting head; 251. Nozzle branch; 252. Infrared sensor; 253. Valve; 254. Infrared receiver; 26. Rotating platform. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a sandblasting machine for cleaning impurities on the surface of a frame. It includes an outer tank 1, an inner tank 15 coaxially arranged inside the outer tank 1, three rack rings 24 evenly arranged horizontally on the outer wall of the inner tank 15, three sandblasting pipes 14 arranged on the lower side of the rack rings 24, a conveying chamber 13 arranged inside the outer tank 1, the conveying chamber 13 is used to store sand and provide a stable sand conveying channel for sandblasting operations, the outer end of the sandblasting pipe 14 is rotatably connected to the inner wall of the conveying chamber 13, and the angle of the sandblasting pipe 14 can be flexibly adjusted to adapt to different sandblasting scenarios, the inner side of the sandblasting pipe 14 penetrates the side wall of the inner tank 15 and extends into the inner tank 15, and a sandblasting head 25 is arranged at the end of the sandblasting pipe 14.

[0028] The sandblasting head 25 directly performs sandblasting on the frame to be cleaned, which is placed on the rotating platform 26. A motor 2 is installed on the outside of the inner tank 15. A drive shaft 21 is installed at the output end of the motor 2. A drive gear 22 corresponding to the rack ring 24 is installed in the middle section of the drive shaft 21. The drive gear 22 is driven by the motor 2 to mesh with the rack ring 24, thereby driving the rack ring 24 to move. A belt 23 is installed at the lower end of the drive shaft 21. A rotating platform 26 is installed at the center of the bottom surface of the inner tank 15. The rotating platform 26 is used to support the frame to be cleaned. It is driven by the belt 23 to rotate, thereby driving the frame to rotate and completing all-round sandblasting cleaning in conjunction with the sandblasting head 25.

[0029] The end of the sandblasting head 25 is provided with a nozzle branch 251. The interior of the nozzle branch 251 is connected to the sandblasting pipe 14 to realize the stable transmission of sand from the sandblasting pipe 14 to the nozzle branch 251. Each nozzle branch 251 is provided with a valve 253. The valve 253 can control the opening and closing of the nozzle branch 251, flexibly open or close the sandblasting channel according to the sandblasting requirements, accurately control the start and stop of the sandblasting operation, and improve the precision control capability of the sandblasting process.

[0030] A side gear 241 is provided on the outer side of the rack ring 24, and a lower gear 242 is provided on the lower surface of the rack ring 24. The side gear 241 meshes with the transmission gear 22. The transmission shaft 21 driven by the motor 2 drives the transmission gear 22 to rotate, thereby transmitting power to the side gear 241. A rotating gear 141 is provided on the outer side of the sandblasting pipe 14 located outside the inner tank 15. The lower gear 242 meshes with the rotating gear 141. When the rack ring 24 moves, the lower gear 242 drives the rotating gear 141, thereby rotating the sandblasting pipe 14 to adjust the sandblasting angle.

[0031] Example 2

[0032] Reference Figure 1-4 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0033] An infrared receiver 254 is installed on the inner wall of the inner tank 15. The position of the infrared receiver 254 corresponds to the infrared sensor 252. The infrared sensor 252 is installed on the side of the nozzle branch 251 near the valve 253. It detects in real time whether there is a solid area of ​​the frame in front of the nozzle. The infrared receiver 254 receives the sensor signal and transmits it to the control system. When a hollow area is detected, the corresponding valve 253 is automatically closed to stop sandblasting, so as to achieve precise sandblasting control and avoid sand waste.

[0034] An infrared sensor 252 is installed on the nozzle branch 251 on one side of the valve 253. The infrared sensor 252 is installed on the side of the nozzle branch 251 close to the valve 253 and is electrically connected to the valve 253. By detecting in real time whether there is a solid area of ​​the frame in front of the nozzle, the signal is fed back to the control system to accurately control the opening and closing of the valve 253, realize the intelligent start and stop of the sandblasting operation, avoid the ineffective spraying of sand in the hollow area, effectively improve the sand utilization rate and reduce resource waste.

[0035] The outer wall of the outer tank 1 is provided with a sand inlet 12, which is connected to the conveying chamber 13, so as to facilitate the addition of sand into the conveying chamber 13 and realize the recycling of sand. The upper opening of the outer tank 1 is provided with a machine cover 11, which can seal the top opening of the outer tank 1 to prevent sand from splashing during the sandblasting process and reduce the entry of external dust.

[0036] The remaining structure is the same as that in Example 1.

[0037] The specific operating principle of this utility model is as follows:

[0038] After the equipment is started, the motor 2 drives the transmission gear 22 to rotate through the transmission shaft 21. The transmission gear 22 meshes with the side gear 241 on the outer side of the rack ring 24, driving the three rack rings 24 to move synchronously in the horizontal direction. At the same time, the belt 23 at the lower end of the transmission shaft 21 drives the rotating platform 26 to rotate at a constant speed through the transmission structure at the bottom of the rotating platform 26, causing the cleaning frame placed on it to rotate synchronously. The lower gear 242 on the lower surface of the rack ring 24 meshes with the rotating gear 141 on the outer side of the sandblasting pipe 14. When the rack ring 24 moves, the lower gear 242 drives the rotating gear 141, causing the sandblasting pipe 14 to make a circular motion around the outer wall of the inner tank 15. At the same time, its outer end rotates in the conveying chamber 13, realizing the composite motion of the 360° annular sandblasting trajectory of the sandblasting head 25 and the rotational motion of the frame, ensuring full coverage of complex surfaces.

[0039] Secondly, the infrared sensor 252 at the end of the nozzle branch 251 scans the surface of the frame in real time. When it detects a metal reflection signal, it transmits an electrical signal to the control system through the infrared receiver 254, triggering the corresponding valve 253 to open. The sand is then sprayed out at high speed from the conveying chamber 13 through the sandblasting pipe 14 and the nozzle branch 251. The impact force removes surface impurities. When the infrared sensor 252 detects no reflection signal in the hollowed-out area, the valve 253 immediately closes, stopping the sandblasting. The response time of this process is less than 0.1 seconds, achieving millimeter-level precision sandblasting control and avoiding the waste of sand in ineffective areas.

[0040] Finally, the sand after blasting falls back to the bottom of the outer tank 1 under gravity and is recycled through the conveying chamber 13. The cover 11 on the top of the outer tank 1 effectively prevents sand particles from splashing. The sand inlet 12 can dynamically replenish sand during equipment operation. After cleaning is completed, the motor 2 stops running, the transmission system resets, and the control system records the cleaning data. The entire process requires no manual intervention. Through the synergy of mechanical motion and intelligent sensing, the cleaning efficiency is improved by more than 40%, and the sand consumption is reduced by 35%, meeting the needs of industrial-grade continuous operation.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sandblasting machine for cleaning impurities on the surface of a machine frame, characterized in that: The system includes an outer tank (1), an inner tank (15) coaxially disposed inside the outer tank (1), three rack rings (24) evenly arranged horizontally on the outer wall of the inner tank (15), three sandblasting pipes (14) disposed on the lower side of the rack rings (24), a conveying chamber (13) disposed inside the outer tank (1), the outer end of the sandblasting pipes (14) being rotatably connected to the inner wall of the conveying chamber (13), and the inner side of the sandblasting pipes (14) penetrating the side wall of the inner tank (15) and extending into the interior of the inner tank (15). The end of the sandblasting pipe (14) is provided with a sandblasting head (25), the outer side of the inner tank (15) is provided with a motor (2), the output end of the motor (2) is provided with a drive shaft (21), the middle section of the drive shaft (21) is provided with a drive gear (22) corresponding to the rack ring (24), the lower end of the drive shaft (21) is provided with a belt (23), and the center of the bottom surface of the inner tank (15) is provided with a rotating platform (26), which is connected to the belt (23).

2. The sandblasting machine for cleaning impurities on the frame surface according to claim 1, characterized in that, The end of the blasting head (25) is provided with a nozzle branch (251), the interior of the nozzle branch (251) is connected to the blasting pipe (14), and a valve (253) is provided at the end of each nozzle branch (251).

3. A sandblasting machine for cleaning impurities on the surface of a machine frame according to claim 1, characterized in that, A side gear (241) is provided on the outer side of the rack ring (24), and a lower gear (242) is provided on the lower surface of the rack ring (24). The side gear (241) meshes with the transmission gear (22). A rotating gear (141) is provided on the outer side of the sandblasting pipe (14) located outside the inner tank (15). The lower gear (242) meshes with the rotating gear (141).

4. A sandblasting machine for cleaning impurities on the surface of a machine frame according to claim 2, characterized in that, An infrared receiver (254) is provided on the inner wall of the inner tank (15), and the position of the infrared receiver (254) corresponds to that of the infrared sensor (252).

5. A sandblasting machine for cleaning impurities on the surface of a machine frame according to claim 2, characterized in that, An infrared sensor (252) is provided on one side of the nozzle branch (251) of the valve (253), and the infrared sensor (252) is electrically connected to the valve (253).

6. A sandblasting machine for cleaning impurities on the surface of a machine frame according to claim 1, characterized in that, The outer wall of the outer tank (1) is provided with a sand inlet (12), which is connected to the conveying chamber (13). An organic cover (11) is provided at the upper opening of the outer tank (1).

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