Sand blasting machine for automobile model casting machining
By designing a detachable multi-hole nozzle pipe and placement plate structure, the problem of the abrasive material being sprayed onto the nozzle or the inner wall of the sandblasting box was solved, realizing automated cleaning and resource conservation of the sandblasting machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YIXUN AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-19
AI Technical Summary
When using existing sandblasting machines to process automotive model castings, the abrasive material is easily sprayed onto the nozzle or the inner wall of the sandblasting box, resulting in frequent and inconvenient manual cleaning.
A sandblasting machine was designed, which adopts a detachable multi-hole nozzle pipe and a placement plate structure. By combining vertical and horizontal bars, the sandblasting and cleaning functions are separated. The multi-hole nozzle pipe is used to automatically wash the inner wall of the sandblasting box and the nozzle surface, and the sprayed material and water are collected in the collection frame.
It has enabled automated cleaning of sandblasting machines, reduced the frequency of manual cleaning, avoided resource waste, and improved efficiency.
Smart Images

Figure CN224255089U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automobile model casting processing, specifically a sandblasting machine for automobile model casting processing. Background Technology
[0002] Sandblasting is a mechanical surface treatment process. It uses the negative pressure created by the high-speed movement of airflow inside the spray gun to propel abrasive materials (such as copper ore sand, quartz sand, iron sand, sea sand, corundum, etc.) at high speed onto the surface of the workpiece. This causes changes in the appearance of the workpiece's outer surface. Due to the impact and cutting action of the abrasive on the workpiece surface, the workpiece surface achieves a certain degree of cleanliness and different roughness, which can improve the fatigue fracture resistance of parts, prevent fatigue failure, plastic deformation and brittle fracture, and increase fatigue life.
[0003] When sandblasting car model castings, the surface of the castings needs to be continuously sandblasted using a sandblasting machine. However, current sandblasting machines typically operate within a sandblasting chamber, and since nozzles are located on both sides of the car model casting, the abrasive material ejected from one nozzle can splash onto another nozzle or the inner wall of the sandblasting chamber. This necessitates frequent manual cleaning of the sandblasting chamber, which is inconvenient. Therefore, those skilled in the art have proposed a sandblasting machine for processing car model castings to solve the problems mentioned in the background. Utility Model Content
[0004] The purpose of this utility model is to provide a sandblasting machine for processing automobile model castings, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A sandblasting machine for processing automobile model castings includes a sandblasting box, a collection frame installed at the bottom of the sandblasting box, a slot at the bottom end of the sandblasting box, a door installed at the front end of the sandblasting box, a material box on one side of the sandblasting box, a material pump installed on the material box, one end of the material pump connected to one end of a material conveying pipe, a circular connecting plate installed on the inner wall of the sandblasting box, a plurality of nozzles evenly spaced on the inner wall of the circular connecting plate, the other end of the material conveying pipe connected to the circular connecting plate, a working box installed on the top of the sandblasting box, a rotating frame installed inside the working box, a vertical pipe vertically inserted into the middle of the rotating frame, a multi-hole nozzle pipe detachably installed at the bottom end of the vertical pipe, the top end of the vertical pipe extending outside the working box, a crossbar installed at the bottom of the inner cavity of the sandblasting box, and a placement plate detachably installed on the crossbar.
[0007] As a further embodiment of this utility model: a circular track plate is installed on the inner bottom surface of the work box, the bottom of the rotating frame is rotatably connected to the circular track plate, an annular gear ring is installed on the top outer wall of the rotating frame, a driving component is installed on the inner wall of the work box, and a drive gear is installed at the output end of the driving component, the drive gear meshing with the annular gear ring.
[0008] As a further embodiment of this utility model: the top of the circular track plate is provided with a circular groove, the inner bottom surface of the circular groove is provided with a ball bearing, the bottom outer wall of the rotating frame is connected to an annular support plate, and the bottom end of the annular support plate is slidably connected in the circular groove.
[0009] As a further embodiment of this utility model: the top and bottom of the rotating frame are provided with circular holes that cooperate with the vertical tube, the upper outer wall of the vertical tube is connected to a limiting plate, and the top of the multi-hole nozzle tube is installed at the bottom of the vertical tube by means of a threaded connection.
[0010] As a further embodiment of this utility model: two insertion holes are symmetrically arranged at the top of the crossbar, and two vertical rods are symmetrically connected to the bottom of the placement plate, with the bottom ends of the two vertical rods respectively inserted into the two insertion holes.
[0011] This utility model has the following advantages: The sandblasting machine uses vertical and horizontal rods to detachably install the multi-hole nozzle pipe and the placement plate. When only the placement plate is installed, the car model casting can be placed on the placement plate for sandblasting. When only the multi-hole nozzle pipe is installed, it can cooperate with the vertical pipe to wash the inner wall of the sandblasting box and the surface of the nozzle, thus facilitating the cleaning of the inside of the sandblasting box. The spray material and water generated by sandblasting and washing can be collected through the collection frame to prevent resource waste and improve the usage effect. Attached Figure Description
[0012] Figure 1 This is a front view of the overall external structure of an embodiment of the present utility model.
[0013] Figure 2 This is a front view of the internal structure of the sandblasting box in the cleaning state in an embodiment of this utility model.
[0014] Figure 3 This is a front view of the internal structure of the sandblasting box in the sandblasting state in an embodiment of this utility model.
[0015] Figure 4 This is a schematic diagram of the structure of the circular track plate in an embodiment of this utility model.
[0016] Figure 5 For this Figure 2 Enlarged diagram of part A in the image.
[0017] In the diagram: 1. Collection frame; 2. Sandblasting box; 3. Box door; 4. Working box; 5. Material box; 6. Feed pump; 7. Feed pipe; 8. Drive component; 9. Drive gear; 10. Circular track plate; 11. Rotating frame; 12. Vertical pipe; 13. Limiting plate; 14. Multi-hole nozzle pipe; 15. Circular connecting plate; 16. Nozzle; 17. Groove; 18. Circular hole; 19. Circular groove; 20. Circular support plate; 21. Ball bearing; 22. Crossbar; 23. Insertion hole; 24. Placement plate; 25. Vertical bar; 26. Circular gear ring. Detailed Implementation
[0018] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.
[0022] Example 1: Please refer to Figures 1 to 4A sandblasting machine for processing automobile model castings includes a sandblasting box 2, a collection frame 1 installed at the bottom of the sandblasting box 2, a slot 17 provided at the bottom end of the sandblasting box 2, a box door 3 installed at the front end of the sandblasting box 2, a material box 5 provided on one side of the sandblasting box 2, a material pump 6 installed on the material box 5, one end of the material pump 6 being connected to one end of a material conveying pipe 7, and a circular connecting plate 15 installed on the inner wall of the sandblasting box 2, with a plurality of evenly spaced... The nozzle 16 is connected to the other end of the material conveying pipe 7, which is connected to the annular connecting plate 15. A working box 4 is installed on the top of the sandblasting box 2. A rotating frame 11 is installed inside the working box 4. A vertical pipe 12 is vertically inserted into the middle of the rotating frame 11. A multi-hole nozzle 16 pipe 14 is detachably installed at the bottom end of the vertical pipe 12. The top end of the vertical pipe 12 extends to the outside of the working box 4. A crossbar 22 is installed at the bottom of the inner cavity of the sandblasting box 2. A placement plate 24 is detachably installed on the crossbar 22.
[0023] Please see Figures 2 to 5 The inner bottom surface of the work box 4 is equipped with a circular track plate 10. The bottom of the rotating frame 11 is rotatably connected to the circular track plate 10. The top outer wall of the rotating frame 11 is equipped with an annular gear ring 26. The inner wall of the work box 4 is equipped with a driving component 8. The output end of the driving component 8 is equipped with a drive gear 9. The drive gear 9 meshes with the annular gear ring 26. The top of the circular track plate 10 is provided with an annular groove 19. The inner bottom surface of the annular groove 19 is provided with a ball bearing 21. The bottom outer wall of the rotating frame 11 is connected to an annular support plate 20. The bottom end of the annular support plate 20 is slidably connected in the annular groove 19.
[0024] Please see Figure 2 , Figure 3 The rotating frame 11 has circular holes 18 at both its top and bottom ends that mate with the vertical tube 12. The upper outer wall of the vertical tube 12 is connected to a limiting plate 13. The top end of the multi-hole nozzle 16 tube 14 is installed at the bottom end of the vertical tube 12 by a threaded connection. After the vertical tube 12 is inserted into the rotating frame 11, the limiting plate 13 is quickly installed on the top outer wall of the rotating frame 11 by bolts.
[0025] Example 2: See Figure 3 Based on Embodiment 1, the top of the crossbar 22 is symmetrically provided with two insertion holes 23, and the bottom of the placement plate 24 is symmetrically connected with two vertical rods 25, the bottom ends of the two vertical rods 25 being inserted into the two insertion holes 23 respectively.
[0026] Working principle: During sandblasting, open the chamber door 3, insert the bottom end of the vertical rod 25 into the insertion hole 23, and the placement plate 24 is installed. Place the car model casting on the placement plate 24, close the chamber door 3, and the abrasive material in the material box 5 is transported to the annular connecting plate 15 by the material pump 6. Then, the abrasive material is sprayed onto the car model casting through the nozzle 16 to achieve sandblasting treatment of the car model casting. When it is necessary to clean the sandblasting chamber 2, remove the placement plate 24 and insert the multi-hole nozzle 16 into the tube 14. The top is installed at the bottom of the vertical rod 25, and the external water supply pipe is inserted into the top of the vertical rod 25. The water supply pipe and the vertical pipe 12 can rotate relative to each other. Water is supplied to the vertical pipe 12 and the multi-hole nozzle 16 pipe 14 through the water supply pipe. The drive component 8 drives the drive gear 9 to rotate, which in turn drives the ring gear ring 26 and the rotating frame 11 to rotate, which in turn drives the multi-hole nozzle 16 pipe 14 to rotate to spray water to wash the inner wall of the sandblasting box 2 and the surface of the nozzle 16. The washing water flows into the collection frame 1 for collection.
[0027] All components of this utility model are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A sandblasting machine for processing automobile model castings, comprising a sandblasting box, characterized in that, A collection frame is installed at the bottom of the sandblasting box, and a slot is provided at the bottom end of the sandblasting box. A door is installed at the front end of the sandblasting box. A material box is provided on one side of the sandblasting box, and a material pump is installed on the material box. One end of the material pump is connected to one end of the material conveying pipe. A circular connecting plate is installed on the inner wall of the sandblasting box, and several nozzles are installed at equal intervals on the inner wall of the circular connecting plate. The other end of the material conveying pipe is connected to the circular connecting plate. A working box is installed on the top of the sandblasting box, and a rotating frame is installed inside the working box. A vertical pipe is vertically inserted into the middle of the rotating frame. A multi-hole nozzle pipe is detachably installed at the bottom end of the vertical pipe, and the top end of the vertical pipe extends outside the working box. A crossbar is installed at the bottom of the inner cavity of the sandblasting box, and a placement plate is detachably installed on the crossbar.
2. The sandblasting machine for processing automobile model castings according to claim 1, characterized in that, The inner bottom surface of the work box is equipped with a circular track plate, the bottom of the rotating frame is rotatably connected to the circular track plate, the top outer wall of the rotating frame is equipped with a ring gear, the inner wall of the work box is equipped with a driving component, the output end of the driving component is equipped with a drive gear, and the drive gear meshes with the ring gear.
3. A sandblasting machine for processing automobile model castings according to claim 2, characterized in that, The top of the circular track plate is provided with a circular groove, and the inner bottom surface of the circular groove is provided with ball bearings. The bottom outer wall of the rotating frame is connected to an annular support plate, and the bottom end of the annular support plate is slidably connected in the circular groove.
4. A sandblasting machine for processing automobile model castings according to claim 3, characterized in that, The rotating frame has circular holes at both the top and bottom for engaging with the vertical tube. A limit plate is connected to the upper outer wall of the vertical tube, and the top of the multi-hole nozzle tube is installed at the bottom of the vertical tube by a threaded connection.
5. A sandblasting machine for processing automobile model castings according to claim 1, characterized in that, The top of the crossbar has two symmetrically arranged insertion holes, and the bottom of the placement plate is symmetrically connected to two vertical rods, with the bottom ends of the two vertical rods inserted into the two insertion holes respectively.