A rotating sand-blast drum

By using the rotating mechanism of the rotating sand-spraying cylinder and the automated control system, the problems of uniform spraying and low efficiency of the sand-spraying machine have been solved, achieving uniform sand coverage on the workpiece surface and high-efficiency production.

CN224294640UActive Publication Date: 2026-05-29NINGBO BAIDA MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BAIDA MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-07-07
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing sandblasting machines have poor spray uniformity, making it difficult to achieve uniform sand coverage on the workpiece surface, and their production efficiency is low.

Method used

It adopts a rotating sand-spraying cylinder, which drives the sand to be evenly distributed and form "sand rain" through a rotating mechanism. It is equipped with an automated control system to realize multiple cycles of sand spraying and parameter adjustment.

Benefits of technology

It ensures uniform sand coverage on every part of the workpiece surface, improves production efficiency, reduces manual intervention, adapts to different workpiece requirements, and has a compact structure that facilitates installation and maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224294640U_ABST
    Figure CN224294640U_ABST
Patent Text Reader

Abstract

The utility model discloses a rotary sand shower cylinder, including support, rotating mechanism and rotary sand shower cylinder, the rotary sand shower cylinder drives rotation through rotating mechanism, the support upper portion is installed with the vibrating screen, and the support is located vibrating screen below and is installed with product suspension subassembly, and the support is located product suspension subassembly below and is installed with the material guide subassembly. The utility model discloses, and the sand shower of rotary sand shower cylinder is formed with " sand rain " through the rotating mechanism and is evenly distributed and falls to the vibrating screen with sand delivery, can evenly gently scatter on the workpiece surface, and the sand particle is not easy to break, and this kind of uniform sand shower mode can ensure that every part on the workpiece surface can get sufficient and consistent sand coverage, improves product quality.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sand-spraying cylinder technology, specifically a rotating sand-spraying cylinder. Background Technology

[0002] Traditional sand-washing machines use belt conveyors and buckets to circulate and lift sand. The sand falls from the top to the highest point. After the wax model is coated with adhesive, it is inserted into the sand and fine sand is applied to its surface to form a mold shell.

[0003] A drum sand-filtering machine, disclosed in publication number CN102744197B, is specifically used for investment casting and belongs to the field of casting equipment technology. It includes a frame, drum, hoppers, electrical cabinet, filter tank, vibrating motor, upper screen, vibrating support, lower screen, worm gear reducer, shaft, rollers, shaft support, and dust-collecting cyclone. Its key feature is that a vibrating support is fixed to the upper end of the frame, and a drum is rotatably mounted on the vibrating support. Multiple hoppers are provided on the inner surface of the drum. Two rollers are provided on each side of the drum, and the two rollers are fixed to a shaft. The shaft is mounted on two shaft supports via bearings, and one end of the shaft is connected to the worm gear reducer. An upper screen and a lower screen are provided inside the drum; the upper screen is fixed to the upper end of the vibrating support, and the lower screen is fixed to the lower end of the vibrating support. It can effectively separate slurry lumps and impurities.

[0004] While existing technologies can separate slurry blocks and impurities to a certain extent, the uniformity of spraying is relatively poor. Therefore, we propose a through-type sand spraying machine. Utility Model Content

[0005] The purpose of this invention is to provide a rotating sand-spraying cylinder to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotating sand-washing cylinder, comprising a support, a rotating mechanism, and a rotating sand-washing cylinder, wherein the rotating sand-washing cylinder is driven to rotate by the rotating mechanism, a vibrating screen is installed on the upper part of the support, a product suspension assembly is installed on the support below the vibrating screen, and a material guiding assembly is installed on the support below the product suspension assembly.

[0007] Preferably, the rotating sand-washing cylinder includes a cylinder body, in which multiple material support plates are installed at equal intervals, and a connecting plate is installed at one end of the cylinder body; the rotating mechanism includes a base, a support is installed at the rear of the base, and a fixing plate is installed at the top of the cylinder body via a bearing seat, and the fixing plate and the connecting plate are fixed by bolts.

[0008] Preferably, the outer side of the cylinder is provided with two annular guide rails; a first rotating shaft and a second rotating shaft are rotatably mounted at both ends of the base, the first rotating shaft is equipped with two drive wheels that cooperate with the guide rails, and the base is equipped with a drive assembly that drives the first rotating shaft to rotate; the second rotating shaft is equipped with two auxiliary wheels that cooperate with the guide rails.

[0009] Preferably, the product suspension assembly includes a crossbeam and a mounting bracket, wherein the mounting bracket is adjustablely mounted on the crossbeam.

[0010] Preferably, the vibrating screen includes a screen plate, a crossbar is installed at the top of the screen plate, and a second vibrating motor is installed on the crossbar.

[0011] Preferably, the material guiding assembly includes a material guiding plate and a first vibration motor, with the first vibration motor mounted at the bottom of the material guiding plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Uniform Sand Spraying: The rotating sand spraying cylinder conveys sand to a vibrating screen via a rotating mechanism, distributing it evenly and causing it to fall as "sand rain," which is evenly and gently sprinkled onto the workpiece surface. The sand particles are not easily broken, and this uniform sand spraying method ensures that every part of the workpiece surface receives sufficient and consistent sand coverage, improving product quality. Multiple-cycle sand spraying process: Sand spraying is continuously performed on the workpiece surface during the sand spraying process. This multiple-cycle sand spraying method further ensures the uniformity of the sand spraying, making the sand layer on the workpiece surface more uniform and dense.

[0014] 2. High Efficiency: The rotating structure of the rotary sandblasting cylinder can quickly lift and drop sand, greatly improving sandblasting efficiency. Compared with traditional sandblasting methods, the rotary sandblasting machine can complete the sandblasting of the same number of workpieces in a shorter time, thereby improving production efficiency. The rotary sandblasting cylinder is equipped with an automated control system. The control system can automate the sandblasting process, including automatic sand supply, automatic control of rotation speed and sandblasting time, etc. Automated operation not only improves production efficiency, but also reduces manual intervention, labor intensity, and human error.

[0015] 3. High adaptability: The rotation speed, sand spraying angle, and sand flow rate of the rotary sand spraying cylinder can be adjusted according to different workpieces and process requirements. This adjustability allows the rotary sand spraying machine to adapt to workpieces of various shapes, sizes, and materials, meeting diverse production needs. The design of the rotary sand spraying cylinder allows for easy integration and coordination with production lines. It can be automatically connected with other production equipment (such as casting equipment) to form a complete production line. This excellent compatibility improves the efficiency and coordination of the entire production system, reducing intermediate steps and time waste in the production process.

[0016] 4. Compact Structure: Rotary sandblasting cylinders typically employ a compact structural design. All components and devices are optimally laid out, resulting in a relatively small overall size. This compact design not only saves space but also facilitates installation, commissioning, and maintenance. Due to its small footprint, rotary sandblasting machines are particularly suitable for use in production environments with limited space. For example, in small factories or workshops where space resources are often scarce, rotary sandblasting machines can achieve efficient sandblasting operations within a confined space.

[0017] 5. Easy to operate: The operation of the rotating sand-spraying cylinder is relatively simple and easy to master. Operators can become proficient in operating the equipment and carrying out sand-spraying operations after simple training.

[0018] Simple and easy to use

[0019] 6. Simple maintenance: The structure is simple, practical, and not easily damaged, making maintenance convenient and economical. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a utility model Figure 1 Partial structural diagram;

[0023] Figure 3 This is a structural schematic diagram of the suspension assembly of the present invention;

[0024] Figure 4 This is a schematic diagram of the rotating mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the rotating sand-spraying cylinder of this utility model.

[0026] In the diagram: 1. Support frame; 2. Material guiding assembly; 3. Product suspension assembly; 4. Vibrating screen; 5. Rotating mechanism; 6. Rotating sand-washing cylinder; 21. Material guiding plate; 22. First vibrating motor; 31. Crossbeam; 32. Mounting frame; 41. Screen plate; 42. Crossbar; 43. Second vibrating motor; 51. Base; 52. First rotating shaft; 53. Drive wheel; 54. Drive assembly; 55. Support; 56. Bearing seat; 57. Fixing plate; 58. Second rotating shaft; 59. Auxiliary wheel; 61. Cylinder body; 62. Connecting plate; 63. Guide rail; 64. Material support plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0028] Please see Figure 1-5 In this embodiment of the utility model, a rotating sand-washing cylinder includes a support 1, a rotating mechanism 5, and a rotating sand-washing cylinder 6. The rotating sand-washing cylinder 6 is driven to rotate by the rotating mechanism 5. A vibrating screen 4 is installed on the upper part of the support 1. A product suspension assembly 3 is installed on the support 1 below the vibrating screen 4. A material guide assembly 2 is installed on the support 1 below the product suspension assembly 3.

[0029] The rotating sand-washing cylinder 6 includes a cylinder body 61, with multiple material support plates 64 evenly spaced inside the cylinder body 61. A connecting plate 62 is installed at one end of the cylinder body 61. The rotating mechanism 5 includes a base 51, with a support 55 installed at the rear of the base 51. A fixing plate 57 is installed at the top of the cylinder body 61 via a bearing seat 56. The fixing plate 57 is fixed to the connecting plate 62 by bolts. Two annular guide rails 63 are provided on the outer side of the cylinder body 61. A first rotating shaft 52 and a second rotating shaft 58 are rotatably mounted at both ends of the base 51. The first rotating shaft 52 is equipped with two drive wheels 53 that cooperate with the guide rails 63. The base 51 is equipped with a drive assembly 54 that drives the first rotating shaft 52 to rotate. The second rotating shaft 58 is equipped with two auxiliary wheels 59 that cooperate with the guide rails 63.

[0030] The rotary sand-spraying cylinder uses a rotating mechanism to transport sand to a vibrating screen, where it is evenly distributed and falls to form a "sand rain," gently and evenly sprinkling it onto the workpiece surface. The sand particles are not easily broken, and this uniform sand-spraying method ensures that every part of the workpiece surface receives sufficient and consistent sand coverage, improving product quality. The process involves multiple cycles of sand-spraying. During the sand-spraying process, the workpiece surface is continuously sand-sprayed. This multiple-cycle sand-spraying method further ensures the uniformity of the sand spray, making the sand layer on the workpiece surface more uniform and dense.

[0031] The rotating structure of the rotary sandblasting cylinder enables rapid lifting and lowering of sand, significantly improving sandblasting efficiency. Compared to traditional sandblasting methods, the rotary sandblasting machine can complete the sandblasting of the same number of workpieces in a shorter time, thereby increasing production efficiency. The rotary sandblasting cylinder is equipped with an automated control system. This system automates the sandblasting process, including automatic sand supply, automatic control of rotation speed, and sandblasting time. Automated operation not only improves production efficiency but also reduces manual intervention, lowering labor intensity and human error.

[0032] The rotation speed, sand spraying angle, and sand flow rate of the rotary sand spraying cylinder can be adjusted according to different workpieces and process requirements. This adjustability allows the rotary sand spraying machine to adapt to workpieces of various shapes, sizes, and materials, meeting diverse production needs. The design of the rotary sand spraying cylinder allows for easy integration and coordination with production lines. It can be automatically connected to other production equipment (such as casting equipment) to form a complete production line. This excellent compatibility improves the efficiency and coordination of the entire production system, reducing intermediate steps and time waste in the production process.

[0033] Rotary sandblasting cylinders typically employ a compact structural design. Their various components and devices are optimized for layout, resulting in a relatively small overall size. This compact design not only saves space but also facilitates installation, commissioning, and maintenance. Due to their small footprint, rotary sandblasting machines are particularly suitable for use in production environments with limited space. For example, in small factories or workshops where space resources are often scarce, rotary sandblasting machines can achieve efficient sandblasting operations within a confined space.

[0034] The product suspension assembly 3 includes a crossbeam 31 and a mounting bracket 32, with the mounting bracket 32 ​​being adjustablely mounted on the crossbeam 31.

[0035] The vibrating screen 4 includes a screen plate 41, a crossbar 42 is installed at the top of the screen plate 41, and a second vibrating motor 43 is installed on the crossbar 42.

[0036] The material guiding assembly 2 includes a material guiding plate 21 and a first vibration motor 22, with the first vibration motor 22 installed at the bottom of the material guiding plate 21.

[0037] The working principle of this invention is as follows: The rotating sand-spraying cylinder, through a rotating mechanism, transports sand to a vibrating screen for even distribution and drop, forming a "sand rain" that gently and evenly sprinkles it onto the workpiece surface. The sand particles are not easily broken, and this uniform sand-spraying method ensures that every part of the workpiece surface receives sufficient and consistent sand coverage, improving product quality. The process involves multiple cycles of sand spraying. During the sand-spraying process, the workpiece surface is continuously sprayed with sand. This multiple-cycle sand-spraying method further ensures the uniformity of the sand spraying, making the sand layer on the workpiece surface more uniform and dense. The rotating structure of the rotating sand-spraying cylinder can quickly lift and drop the sand, greatly improving the efficiency of sand spraying. Compared with traditional sand spraying methods, the rotating sand-spraying machine can complete the sand spraying of the same number of workpieces in a shorter time, thereby improving production efficiency. The rotating sand-spraying cylinder is equipped with an automated control system. The control system can automate the sand spraying process, including automatic sand supply, automatic control of rotation speed and sand spraying time, etc. Automated operation not only improves production efficiency but also reduces manual intervention, labor intensity, and human error.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A rotating sand-spraying cylinder, comprising a support (1), a rotating mechanism (5), and a rotating sand-spraying cylinder (6), characterized in that: The rotating sand-spraying cylinder (6) is driven to rotate by the rotating mechanism (5). A vibrating screen (4) is installed on the upper part of the support (1). A product suspension assembly (3) is installed on the support (1) below the vibrating screen (4). A material guide assembly (2) is installed on the support (1) below the product suspension assembly (3).

2. The rotating sand-spraying cylinder according to claim 1, characterized in that: The rotating sand-spraying cylinder (6) includes a cylinder body (61), and multiple material support plates (64) are installed at equal intervals inside the cylinder body (61). A connecting plate (62) is installed at one end of the cylinder body (61). The rotating mechanism (5) includes a base (51), and a support (55) is installed at the rear of the base (51). A fixing plate (57) is installed at the top of the support through a bearing seat (56). The fixing plate (57) and the connecting plate (62) are fixed by bolts.

3. A rotating sand-spraying cylinder according to claim 2, characterized in that: Two annular guide rails (63) are provided on the outer side of the cylinder (61); a first rotating shaft (52) and a second rotating shaft (58) are rotatably mounted on both ends of the base (51). The first rotating shaft (52) is equipped with two drive wheels (53) that cooperate with the guide rails (63). The base (51) is equipped with a drive assembly (54) that drives the first rotating shaft (52) to rotate; the second rotating shaft (58) is equipped with two auxiliary wheels (59) that cooperate with the guide rails (63).

4. A rotating sand-spraying cylinder according to claim 1, characterized in that: The product suspension assembly (3) includes a crossbeam (31) and a mounting bracket (32), the mounting bracket (32) being adjustablely mounted on the crossbeam (31).

5. A rotating sand-spraying cylinder according to claim 1, characterized in that: The vibrating screen (4) includes a screen plate (41), a crossbar (42) is installed at the top of the screen plate (41), and a second vibrating motor (43) is installed on the crossbar (42).

6. A rotating sand-washing cylinder according to claim 1, characterized in that: The material guiding assembly (2) includes a material guiding plate (21) and a first vibration motor (22), with the first vibration motor (22) installed at the bottom of the material guiding plate (21).