Sand blasting device for part manufacturing

By employing an electric cylinder-driven clamping plate and a multi-stage filter extraction assembly in the sandblasting device, the problems of unstable positioning and substandard dust emissions in traditional sandblasting devices have been solved, achieving both stability and environmental friendliness in parts sandblasting.

CN224144363UActive Publication Date: 2026-04-21CHANGZHOU HANWEI MACHINERY MANUFACTURING EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU HANWEI MACHINERY MANUFACTURING EQUIPMENT CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional sandblasting equipment lacks an effective positioning method, which makes the parts prone to displacement during the sandblasting process, affecting the uniformity and quality of sandblasting.

Method used

The device, driven by an electric cylinder, uses an electric cylinder and clamping plate installed in the support frame to achieve precise positioning of parts. Dust is removed by a multi-stage filter and a blower in the air extraction assembly, ensuring the stability and environmental friendliness of the sandblasting process.

Benefits of technology

It achieves stable positioning of parts of different sizes, ensuring the stability and quality of the sandblasting process, while purifying exhaust gas through multi-stage filtration to meet environmental emission standards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sand blasting device for manufacturing parts, which comprises a sand blasting cylinder, a positioning piece is mounted in the sand blasting cylinder, a sand blasting component is mounted on the upper surface of the sand blasting cylinder, an air exhaust component is mounted on the back surface of the sand blasting cylinder, the positioning piece comprises two support frames fixedly mounted on the outer surface of the sand blasting cylinder, and the air exhaust component is mounted on the support frames. And an electric cylinder is fixedly mounted on the inner wall of each supporting frame, and the output end of each electric cylinder penetrates through the sand blasting barrel and is fixedly connected with a clamping plate. According to the device, the electric cylinder in the positioning piece is installed in the supporting frame, the output end of the electric cylinder is connected with the clamping plates, the distance and the position between the two clamping plates can be flexibly adjusted by controlling stretching and retracting of the electric cylinder according to the size and the shape of a part, precise positioning of the part is achieved, and the purpose that parts of different sizes can be accurately positioned is achieved. And the positions of the clamping plates can be adjusted through the electric cylinders, so that the parts are kept stable in the sand blasting process, and the parts are prevented from shaking in the sand blasting process.
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Description

Technical Field

[0001] This utility model relates to the field of parts manufacturing, and in particular to a sandblasting device for parts manufacturing. Background Technology

[0002] In the processing of metal parts, sandblasting can be used for surface pretreatment to improve the flatness and roughness of the metal surface, facilitating subsequent bending, stamping and other processing techniques. At the same time, sandblasting can also be used to eliminate stress on the metal surface and improve the fatigue resistance of metal materials. It is a commonly used surface treatment process that can effectively remove impurities such as oxide scale, oil stains, and rust from the surface of parts, while roughening the surface to improve the adhesion of subsequent coatings, electroplating and other processes, thereby improving the overall performance and service life of the parts.

[0003] Traditional sandblasting equipment lacks an effective positioning method when sandblasting parts, and the parts are prone to displacement within the sandblasting barrel, resulting in uneven sandblasting. For example, for parts of different sizes, traditional equipment cannot ensure their stability during sandblasting, affecting the surface treatment quality of the parts. To address these issues, we propose a sandblasting device for parts manufacturing. Utility Model Content

[0004] The purpose of this invention is to provide a sandblasting device for manufacturing parts, 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 device for manufacturing parts includes a sandblasting cylinder, a positioning component installed inside the sandblasting cylinder, a sandblasting assembly installed on the upper surface of the sandblasting cylinder, and an air extraction assembly installed on the back of the sandblasting cylinder. The positioning component includes two support frames fixedly installed on the outer surface of the sandblasting cylinder. An electric cylinder is fixedly installed on the inner wall of each support frame. The output end of each electric cylinder passes through the sandblasting cylinder and is fixedly connected to a clamping plate.

[0007] The air extraction assembly includes a square cylinder fixedly embedded in the back of the sandblasting cylinder. A coarse filter screen, a filter element, and an exhaust fan are fixedly installed on the inner wall of the square cylinder. The exhaust fan is located behind the coarse filter screen and the filter element. A square cover door is hinged to the front of the sandblasting cylinder. A sealing strip is fixedly connected to the back of the square cover door. Two support strips are fixedly connected to the inner wall of the sandblasting cylinder.

[0008] In a further embodiment, an external filter screen is installed on the outer surface of the square cylinder, and a cover plate is installed on the upper surface of the square cylinder by screws.

[0009] In a further embodiment, the bottom surface of the sandblasting cylinder is fixedly connected to a feeding cylinder, the bottom end of the feeding cylinder is fixedly connected to a collecting frame, and the upper surface of the collecting frame and the bottom surface of the sandblasting cylinder are jointly and fixedly connected to two square plates.

[0010] In a further embodiment, the sandblasting assembly includes a sandblasting can and an air compressor fixedly installed on the upper surface of the sandblasting cylinder. The sandblasting cylinder has two guide cylinders inside, and multiple spray guns are installed on the outer surface of each guide cylinder. The outer surface of each guide cylinder is connected to the air outlet of the sandblasting can and the air compressor through a conduit.

[0011] In a further embodiment, a plurality of reinforcing rods are fixedly connected to the inner top wall of the sandblasting cylinder, and the bottom end of each reinforcing rod is fixedly connected to the outer surface of the guide cylinder.

[0012] In a further embodiment, a guide rail is fixedly connected to the inner top wall of the sandblasting cylinder, and two sliding support rods are slidably connected inside the guide rail, with the bottom end of each sliding support rod being fixedly connected to the outer surface of the clamping plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device is installed in the support frame by an electric cylinder in the positioning component. Its output end is connected to the clamping plate. By controlling the extension and retraction of the electric cylinder, the distance and position between the two clamping plates can be flexibly adjusted according to the size and shape of the parts, so as to achieve precise positioning of the parts. For parts of different sizes, the position of the clamping plates can be adjusted by the electric cylinder to keep the parts stable during sandblasting, avoid the parts shaking during sandblasting, and ensure the stability of sandblasting.

[0015] This device is fixedly embedded in the back of the sandblasting cylinder via a square cylinder in the air extraction assembly. Inside, a coarse filter, a filter element, and an exhaust fan are installed in sequence. When the exhaust fan is working, it can extract the air containing dust from the sandblasting cylinder. The air first passes through the coarse filter to remove larger dust particles, and then passes through the filter element to further filter out smaller particles. This achieves multi-stage purification of the exhaust gas, ensuring that the exhaust gas meets environmental protection standards by undergoing multi-stage dust removal treatment before being discharged. Attached Figure Description

[0016] Figure 1 A frontal three-dimensional schematic diagram of a sandblasting device for parts manufacturing;

[0017] Figure 2 A side sectional view of a sandblasting device for parts manufacturing;

[0018] Figure 3A top-section schematic diagram of a sandblasting device for parts manufacturing;

[0019] Figure 4 This is a schematic diagram of the air extraction component in a sandblasting device for parts manufacturing.

[0020] In the diagram: 1. Sandblasting barrel; 2. Positioning component; 201. Support frame; 202. Electric cylinder; 203. Clamping plate; 3. Sandblasting assembly; 301. Sandblasting can; 302. Air compressor; 303. Material guide cylinder; 304. Spray gun; 4. Exhaust assembly; 401. Square cylinder; 402. Cover plate; 403. Coarse filter screen; 404. Filter element; 405. Exhaust fan; 406. External filter screen; 5. Feeding cylinder; 6. Collection frame; 7. Square plate; 8. Square cover door; 9. Sealing strip; 10. Support strip; 11. Guide rail; 12. Sliding support rod; 13. Reinforcing rod. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 In this utility model, a sandblasting device for manufacturing parts includes a sandblasting cylinder 1, a positioning component 2 installed inside the sandblasting cylinder 1, a sandblasting assembly 3 installed on the upper surface of the sandblasting cylinder 1, and an air extraction assembly 4 installed on the back of the sandblasting cylinder 1. The positioning component 2 includes two support frames 201 fixedly installed on the outer surface of the sandblasting cylinder 1. An electric cylinder 202 is fixedly installed on the inner wall of each support frame 201. The output end of each electric cylinder 202 passes through the sandblasting cylinder 1 and is fixedly connected to a clamping plate 203. The clamping plate 203 is V-shaped to accommodate clamping more parts. By controlling the extension and retraction of the electric cylinder 202, the distance and position between the two clamping plates 203 can be flexibly adjusted according to the size and shape of the parts to achieve precise positioning of the parts. For example, for parts of different sizes, the position of the clamping plate 203 can be adjusted by the electric cylinder 202 to keep the parts stable during the sandblasting process.

[0025] The extraction assembly 4 includes a square cylinder 401 fixedly embedded in the back of the sandblasting cylinder 1. A coarse filter 403, a filter element 404, and an exhaust fan 405 are fixedly installed on the inner wall of the square cylinder 401. The exhaust fan 405 is located behind the coarse filter 403 and the filter element 404. A square cover 8 is hinged to the front of the sandblasting cylinder 1, and a sealing strip 9 is fixedly connected to the back of the square cover 8. Two support strips 10 are fixedly connected to the inner wall of the sandblasting cylinder 1. The square cover 8 is made of a high-strength transparent material, such as tempered glass or special glass, to facilitate observation of the sandblasting process. An external filter 406 is installed on the outer surface of the square cylinder 401, and a cover plate 402 is installed on the upper surface of the square cylinder 401 by screws. The filter element 404 can be a polyester fiber filter, a wood pulp fiber filter, or a membrane-coated polyester filter. Fiber filter elements, etc., are characterized by flame retardancy, oil and water resistance, and high-efficiency filtration. They are suitable for the dust removal needs of sandblasting machines. When the exhaust fan 405 is working, it draws out the air containing dust from the sandblasting cylinder 1. The air first passes through the coarse filter screen 403 to filter out larger dust particles, and then passes through the filter element 404 to further filter out fine particles, achieving multi-stage purification of the exhaust gas so that the exhaust gas meets environmental protection standards. The outer filter screen 406 installed on the outer surface of the square cylinder 401 can prevent external debris from entering the exhaust assembly 4 and protect the internal coarse filter screen 403, filter element 404 and exhaust fan 405. The cover plate 402 installed on the upper surface of the square cylinder 401 by screws can be easily opened when needed to clean and replace the internal filter components, ensuring the continuous and efficient operation of the exhaust assembly 4.

[0026] The bottom surface of the sandblasting cylinder 1 is fixedly connected to the feed cylinder 5, and the bottom end of the feed cylinder 5 is fixedly connected to the collection frame 6. The upper surface of the collection frame 6 and the bottom surface of the sandblasting cylinder 1 are jointly and fixedly connected to two square plates 7. The feed cylinder 5 and the collection frame 6 are used to collect sand particles and impurities that fall during the sandblasting process. The feed cylinder 5 is funnel-shaped. The square plates 7 enhance the stability of the connection between the feed cylinder 5, the sandblasting cylinder 1, and the collection frame 6, and facilitate the recycling and treatment of residual sandblasting materials. During the sandblasting process, sand particles and impurities fall from the feed cylinder 5 at the bottom of the sandblasting cylinder 1 into the collection frame 6, which facilitates the subsequent screening and reuse of sand particles. It also facilitates the cleaning of waste generated during the sandblasting process. The square plates 7 can ensure that the connection between the feed cylinder 5, the sandblasting cylinder 1, and the collection frame 6 is firm and prevent loosening and leakage during use.

[0027] The sandblasting assembly 3 includes a sandblasting canister 301 fixedly mounted on the upper surface of the sandblasting cylinder 1 and an air compressor 302. The sandblasting cylinder 1 has two guide cylinders 303 inside. Multiple spray guns 304 are mounted on the outer surface of each guide cylinder 303. The outer surface of each guide cylinder 303 is connected to the air outlet of the sandblasting canister 301 and the air compressor 302 via a conduit. A one-way valve is installed between the guide cylinders 303, the sandblasting canister 301, and the air compressor 302, allowing only air to pass through. The outer surface of the sandblasting canister 301 is equipped with an injection valve to facilitate the addition of sandblasting material. The sandblasting canister 301 in the sandblasting assembly 3 stores the sandblasting material, and the air compressor 302 provides power, delivering the sandblasting material and compressed air to the guide cylinders 303 via conduits. Multiple spray guns 304 on the guide cylinder 303 spray out sandblasting material to achieve efficient sandblasting of parts. When sandblasting large parts, the air compressor 302 sends compressed air into the sandblasting tank 301, so that the sandblasting material and compressed air are mixed and then enter the guide cylinder 303 through the conduit. Then, multiple spray guns 304 simultaneously sandblast the parts, which greatly improves the sandblasting efficiency and uniformity. Multiple reinforcing rods 13 are fixedly connected to the inner top wall of the sandblasting cylinder 1. The bottom end of each reinforcing rod 13 is fixedly connected to the outer surface of the guide cylinder 303. The reinforcing rods 13 enhance the stability of the guide cylinder 303 and prevent the guide cylinder 303 from shaking due to the impact of the sandblasting material and compressed air during the sandblasting process, thus ensuring the stability and consistency of the sandblasting effect.

[0028] The inner top wall of the sandblasting cylinder 1 is fixedly connected to a guide rail 11. Two sliding support rods 12 are slidably connected inside the guide rail 11. The bottom end of each sliding support rod 12 is fixedly connected to the outer surface of the clamping plate 203. The guide rail 11 and the sliding support rods 12 provide stable guidance for the movement of the clamping plate 203, ensuring the accuracy and stability of the positioning component 2 when positioning the parts. This helps to improve the quality of the sandblasting treatment of the parts. When positioning parts with complex shapes, the clamping plate 203 is moved by the electric cylinder 202. The sliding support rods 12 slide inside the guide rail 11, so that the clamping plate 203 can fit more accurately against the surface of the parts, achieving stable positioning of the parts. This ensures that the parts will not be displaced during the sandblasting process, thus guaranteeing the sandblasting quality.

[0029] The working principle of this utility model is as follows:

[0030] In use, connect the relevant power supply, place the parts to be sandblasted on the support bar 10, and then start the two electric cylinders 202 to push the clamping plate 203 to move, so that the two clamping plates 203 move closer to each other to clamp and position the parts from the side, ensuring the stability of subsequent sandblasting. Then close the square cover door 8, and use the operation of the sandblasting assembly 3, air compressor 302 and spray gun 304 to spray sand onto the surface of the clamped parts. The dust-laden gas generated during sandblasting can be drawn into the square cylinder 401 by the operation of the exhaust fan 405. After the coarse filter 403 filters out larger dust particles, the filter core 404 filters out smaller particles through multiple layers, achieving multi-stage purification of the exhaust gas. Finally, the treated gas is discharged under the operation of the exhaust fan 405.

[0031] All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional, known device such as a computer. Detailed descriptions of known functions and components are omitted in this disclosure. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available equipment. It will be apparent to those skilled in the art that this invention 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 invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] 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 device for manufacturing parts, characterized by: The device includes a sandblasting cylinder (1), a positioning component (2) is installed inside the sandblasting cylinder (1), a sandblasting assembly (3) is installed on the upper surface of the sandblasting cylinder (1), and an air extraction assembly (4) is installed on the back of the sandblasting cylinder (1). The positioning component (2) includes two support frames (201) fixedly installed on the outer surface of the sandblasting cylinder (1). An electric cylinder (202) is fixedly installed on the inner wall of each support frame (201). The output end of each electric cylinder (202) passes through the sandblasting cylinder (1) and is fixedly connected to a clamping plate (203). The extraction assembly (4) includes a square cylinder (401) fixedly embedded in the back of the sandblasting cylinder (1). The inner wall of the square cylinder (401) is fixedly installed with a coarse filter screen (403), a filter element (404) and an exhaust fan (405). The exhaust fan (405) is located behind the coarse filter screen (403) and the filter element (404). The front of the sandblasting cylinder (1) is hinged with a square cover door (8). The back of the square cover door (8) is fixedly connected with a sealing strip (9). The inner wall of the sandblasting cylinder (1) is fixedly connected with two support strips (10).

2. The sandblasting device for manufacturing a component according to claim 1, characterized in that: An external filter screen (406) is installed on the outer surface of the square cylinder (401), and a cover plate (402) is installed on the upper surface of the square cylinder (401) by screws.

3. The sandblasting device for manufacturing a component according to claim 1, characterized in that: The bottom surface of the sandblasting cylinder (1) is fixedly connected to the feeding cylinder (5), and the bottom end of the feeding cylinder (5) is fixedly connected to the collecting frame (6). The upper surface of the collecting frame (6) and the bottom surface of the sandblasting cylinder (1) are jointly connected to two square plates (7).

4. The sandblasting device for manufacturing a component according to claim 1, characterized in that: The sandblasting assembly (3) includes a sandblasting can (301) and an air compressor (302) fixedly installed on the upper surface of the sandblasting cylinder (1). The sandblasting cylinder (1) is provided with two guide cylinders (303). Each guide cylinder (303) has multiple spray guns (304) installed on its outer surface. The outer surface of each guide cylinder (303) is connected to the air outlet of the sandblasting can (301) and the air compressor (302) through a conduit.

5. The sandblasting device for manufacturing a component according to claim 1, characterized in that: The inner top wall of the sandblasting cylinder (1) is fixedly connected with a plurality of reinforcing rods (13), and the bottom end of each reinforcing rod (13) is fixedly connected to the outer surface of the guide cylinder (303).

6. The sandblasting device for manufacturing a component according to claim 1, characterized in that: The inner top wall of the sandblasting cylinder (1) is fixedly connected to a guide rail (11), and two sliding support rods (12) are slidably connected inside the guide rail (11). The bottom end of each sliding support rod (12) is fixedly connected to the outer surface of the clamping plate (203).