A sand blasting and polishing device for cast steel production
By designing an adjustable connection structure for the extension rod and connecting rod on the sandblasting head, combined with a damping ball head and a detachable design, the problem of inflexible fixing of the sandblasting head is solved, enabling flexible polishing treatment of different cast steel parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JIAYUEXING FINE FOUNDRY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-24
AI Technical Summary
Existing sandblasting and polishing equipment has an inflexible fixed sandblasting head when processing cast steel parts of different shapes or sizes, making it difficult to adapt to the diverse surface treatment needs of cast steel parts.
A sandblasting and polishing device for the production of cast steel parts was designed. The sandblasting head is connected to the end of the extension rod. Through the adjustable connection structure of the extension rod and the connecting rod, combined with the damping ball head and the detachable design, the position and angle of the sandblasting head can be flexibly adjusted, and it can be used handheld.
It enables flexible adjustment of the position and angle of the sandblasting head to adapt to the shape and size of different cast steel parts, improving the flexibility and applicability of sandblasting and polishing, and avoiding the situation where the sandblasting head gets stuck.
Smart Images
Figure CN224544255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandblasting and polishing technology, specifically to a sandblasting and polishing device for the production of cast steel parts. Background Technology
[0002] Cast steel parts are obtained by pouring molten steel into a mold and then cooling and solidifying it. Sandblasting and polishing equipment used in the production of cast steel parts is used to perform surface treatment on cast steel parts. Sandblasting and polishing is a commonly used surface treatment method. It uses high-speed jets of abrasive particles to impact the surface of the cast steel parts to remove surface defects such as oxide scale, rust, and burrs, while also improving the surface smoothness and roughness.
[0003] In existing technologies, when using equipment for sandblasting and polishing, the sandblasting head is typically fixed while the cast steel part is moved for polishing, or the sandblasting head is held in place for sandblasting and polishing. When polishing cast steel parts of different shapes or sizes, the sandblasting head cannot be flexibly fixed in different positions or held by hand, making it inconvenient to perform sandblasting and polishing on cast steel parts of different shapes or sizes. Therefore, we propose a sandblasting and polishing device for the production of cast steel parts. Utility Model Content
[0004] The purpose of this invention is to provide a sandblasting and polishing device for the production of cast steel parts. By connecting the sandblasting head to the end of an extension rod, and the extension rod being detachably connected to a protrusion at the end of a connecting rod, the position of the connecting cylinder and the connecting rod can be adjusted, and the extension length of the connecting rod can be adjusted. The position and extension distance of the sandblasting head can be adjusted according to the shape and size of the cast steel parts. The angle can be adjusted using a damping ball head, and it can also be detached for handheld use. This makes it more flexible and convenient for polishing different cast steel parts, and solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sandblasting and polishing device for producing cast steel parts, comprising an isolation box, a magnetic suction plate, and a connecting cylinder. The magnetic suction plate is magnetically attracted to the inner wall surface of the isolation box. The connecting cylinder is fixed to the surface of the magnetic suction plate. A connecting rod is slidably inserted inside the connecting cylinder. A locking bolt is screwed onto the surface of the end of the connecting cylinder, and the end of the locking bolt penetrates into the connecting cylinder and abuts against the surface of the connecting rod. A protrusion is fixed to the end of the connecting rod. A stud is provided on the surface of the protrusion. An extension rod is also provided on the side of the protrusion. The extension rod is connected to the end of the connecting rod by screwing the stud into the threaded groove on the surface of the extension rod. A fixing sleeve is connected to the end of the extension rod through a damping ball joint. A sandblasting head is locked inside the fixing sleeve. The sand inlet and air inlet of the sandblasting head are connected to the sand inlet pipe and air inlet pipe on the upper surface of the isolation box through hoses, respectively. A handle is also fixed to the side of the extension rod.
[0006] By adopting the above technical solution, the sandblasting head is placed at the end of the extension rod, which can lock the extension rod to change its position and extension distance. The angle can also be easily rotated and adjusted. In addition, the extension rod can be detached for easy hand use, making it convenient to place the sandblasting head in various positions or use it by hand. It can be more flexibly adapted to the polishing treatment of cast steel parts of different sizes and shapes.
[0007] Optionally, a rubber ball sleeve is fixedly fitted onto the outer ring of the damping ball head, and a rubber sleeve is fixedly fitted onto the connecting surface of the outer ring of the locking bolt, with the other end of the rubber sleeve abutting against the bottom surface of the nut of the locking bolt.
[0008] By adopting the above technical solution, during operation, sand is prevented from acting on the threads of the damping ball head or the outer ring of the locking bolt, thus affecting their fitting accuracy.
[0009] Optionally, an observation window is provided at the front end of the isolation box, and the observation window is located in the middle of the front end of the isolation box.
[0010] By adopting the above technical solution, the internal condition of the isolation box can be viewed through the observation window.
[0011] Optionally, the front end of the isolation box is fitted with a rotatable door via a hinge, and the door is locked by a latch lock.
[0012] By adopting the above technical solution, the box door can be opened for easy insertion and removal of cast steel parts.
[0013] Optionally, the surface of the door has two through openings, and a pressure ring is magnetically attached to the outer surface of the door around the openings.
[0014] By adopting the above technical solution, a pressure ring is used to lock the rubber glove that extends into the inside of the box door at the opening position for hand operation.
[0015] Optionally, a rubber pad is attached to the surface of the magnetic suction plate, and the magnetic suction plate is in contact with the inner surface of the isolation box through the anti-slip rubber pad.
[0016] By adopting the above technical solution, the magnetic plate has a better anti-slip effect when it is attached to the inner wall surface of the isolation box.
[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0018] 1. The technical solution of this application connects the sandblasting head to the end of the extension rod, and the extension rod is detachably connected to the protrusion at the end of the connecting rod. Since the positions of the connecting cylinder and the connecting rod can be adjusted, and the extension length of the connecting rod can be adjusted, the position and extension distance of the sandblasting head can be adjusted according to the shape and size of the cast steel parts. The angle can be adjusted using the damping ball head, and it can also be detached for hand use, making it more flexible and convenient for polishing different cast steel parts.
[0019] 2. The technical solution of this application sets a rubber ball sleeve on the outer ring of the damping ball head and sets the rubber sleeve on the outer ring of the threaded area of the locking bolt, so as to avoid the situation where sand material acts on the threads of the damping ball head or the locking bolt and causes jamming during use.
[0020] 3. The technical solution of this application uses magnetic attraction to attach the pressure ring to the surface of the box on the outer ring of the opening, which facilitates the pressing and locking of the end of the rubber glove and makes it easier to replace the rubber glove later. Attached Figure Description
[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0022] Figure 1 This is a schematic diagram of the overall structure of the sandblasting and polishing device for producing cast steel parts according to this utility model;
[0023] Figure 2 This is a schematic diagram of the internal structure of the isolation rubber part of the sandblasting and polishing device for producing cast steel parts according to this utility model.
[0024] Figure 3 This is a detailed structural diagram of the connecting cylinder end and extension rod area of the sandblasting and polishing device for producing cast steel parts according to this utility model.
[0025] In the diagram: 1. Isolation box; 11. Sand inlet pipe; 12. Air inlet pipe; 13. Observation window; 2. Magnetic suction plate; 21. Rubber pad; 3. Connecting cylinder; 31. Connecting rod; 311. Protrusion; 312. Stud; 32. Locking bolt; 321. Rubber sleeve; 33. Extension rod; 331. Threaded groove; 34. Damping ball head; 341. Rubber ball sleeve; 35. Fixing sleeve; 36. Sandblasting head; 37. Handle; 4. Box door; 41. Through hole; 42. Pressure ring. Detailed Implementation
[0026] Please see Figure 1-3This utility model provides a technical solution: a sandblasting and polishing device for the production of cast steel parts, including an isolation box 1. The isolation box 1 is used to isolate the sand material and prevent the sand material from splashing and spreading outward. A hopper for collecting sand material is set at the bottom of the isolation box 1, and a sand discharge pipe is set at the bottom of the hopper for discharging the collected sand material. A support net is horizontally fixed inside the isolation box 1 above the hopper for supporting the cast steel parts to be sandblasted. When in use, a bracket needs to be set to support the isolation box 1.
[0027] An observation window 13 is provided at the front end of the isolation box 1. The observation window 13 is located in the middle of the front end of the isolation box. It is used to observe the internal condition of the isolation box 1 during sandblasting. The front end of the isolation box 1 is equipped with a rotatable door 4 via a hinge. Both the isolation box 1 and the door 4 are made of iron. The door 4 is locked by a tongue lock. After the tongue lock is released, the door 4 can be opened to put the steel casting into the isolation box 1 or to take out the steel casting.
[0028] Two through openings 41 are made on the surface of the door 4. A pressure ring 42 is magnetically attached to the outer surface of the door 4 around the openings 41. The pressure ring 42 uses a fixed magnet embedded inside it to magnetically attach the door 4. When in use, the rubber glove is inserted into the isolation box 1 through the openings 41 and its end opening is pressed against the outer surface of the door 4 around the openings 41. Then the pressure ring 42 is magnetically attached to the surface of the door 4 and presses and locks the opening of the rubber glove. It is also convenient to remove the pressure ring 42 later to replace the worn rubber glove.
[0029] It is also equipped with a magnetic suction plate 2 and a connecting cylinder 3. The magnetic suction plate 2 has a magnet embedded and fixed inside, and a rubber pad 21 is attached and fixed to the surface of the magnetic suction plate 2, so that the magnetic suction plate 2 can be magnetically attracted and fixed to the inner surface of the isolation box 1 through the anti-slip contact of the rubber pad 21. The connecting cylinder 3 is fixed to the surface of the magnetic suction plate 2, and can be fixed in different positions inside the isolation box 1 as needed.
[0030] A connecting rod 31 is slidably inserted inside the connecting cylinder 3. A protrusion 311 is fixed at the end of the connecting rod 31, and a locking bolt 32 is screwed onto the surface of the end of the connecting cylinder 3. When the position of the connecting rod 31 is adjusted inside the connecting cylinder 3, the extension distance of the protrusion 311 at the end of the connecting rod 31 can be changed. Tightening the locking bolt 32 so that its end passes through the connecting cylinder 3 and abuts against the surface of the connecting rod 31 can lock the extension length of the connecting rod 31.
[0031] A stud 312 is provided on the surface of the protrusion 311, and an extension rod 33 is also provided on the side of the protrusion 311. A threaded groove 331 is provided on the side surface of the extension rod 33. The extension rod 33 is connected to the end of the connecting rod 31 by screwing the stud 312 into the threaded groove 331 on the surface of the extension rod 33. The end of the extension rod 33 is connected to a fixing sleeve 35 through a damping ball head 34. A sandblasting head 36 is locked inside the fixing sleeve 35. The sand inlet and air inlet of the sandblasting head 36 are connected to the sand inlet pipe 11 and air inlet pipe 12 on the upper surface of the isolation box 1 through hoses, respectively. In use, the position and extension distance of the sandblasting head 36 can be adjusted and changed along with the extension rod 33. The sandblasting head 36 can rotate around the damping ball head 34, thereby meeting the position fixation requirements for sandblasting of cast steel parts of different shapes and sizes, making it more flexible and convenient for polishing different cast steel parts.
[0032] A handle 37 is also fixed to the side of the extension rod 33. When using it, when the sandblasting stops, loosen the locking bolt 32 to release the locking of the connecting rod 31. Then, the connecting rod 31 can be rotated by the protrusion 311. Hold the handle 37 to restrict the rotation of the extension rod 33. The stud 312 in the surface of the protrusion 311 can be unscrewed from the threaded groove 331, so that the extension rod 33 can be directly removed. Afterwards, the sandblasting head 36 can be held by the handle 37 to perform sandblasting and polishing. When it is necessary to connect the extension rod 33 to the end of the protrusion 311 in the same way, before reconnecting, it is necessary to use a brush to clean the sand that may remain on the surface of the threaded groove 331 and the stud 312 to prevent sand from getting stuck between the threaded groove 331 and the stud 312.
[0033] A rubber ball sleeve 341 is fixedly fitted onto the outer ring of the damping ball head 34, and a rubber sleeve 321 is fixedly fitted onto the surface of the connecting cylinder 3 of the outer ring of the locking bolt 32. The other end of the rubber sleeve 321 abuts against the bottom surface of the nut of the locking bolt 32. This is to prevent sand from acting on the threads of the damping ball head 34 or the locking bolt 32 during use and causing them to get stuck. Since the stud 312 is completely screwed into the threaded groove 331 during use, sand will not enter between the two. After disassembly and use, the stud 312 and the threaded groove 331 will be cleaned with a brush, so sand prevention treatment is not required.
[0034] In use, a collection pipe is connected to the discharge port of the bottom collection hopper of the isolation box 1 to collect the sand during sandblasting. The sand inlet pipe 11 and the air inlet pipe 12 are connected to the sand supply pipe and the compressed air supply pipe, respectively. After removing the magnetic pressure ring 42, the rubber glove is inserted into the isolation box 1 through the opening 41, with its end opening pressed against the outer surface of the box door 4 around the opening 41. Then, the pressure ring 42 is magnetically attached to the surface of the box door 4 and presses tightly to lock the opening of the rubber glove. After releasing the latch lock on the box door 4, the box door 4 is opened, and the workpiece is placed above the support net inside the isolation box 1. Then close the chamber door 4 and lock it again with the tongue lock. Then, reach your hand into the isolation rubber sleeve 321, hold the workpiece and bring it close to the sandblasting head 36. The abrasive and compressed air enter the sandblasting head 36 through the abrasive inlet pipe 11 and the air inlet pipe 12, respectively. The abrasive is sprayed out from the sandblasting head 36 under the action of compressed air and acts on the surface of the workpiece for polishing. During the sandblasting process, you can hold the sandblasting head 36 and the fixing sleeve 35 at any time to adjust the angle of the sandblasting head 36. If you need to change the position of the sandblasting head 36 or its outward extension length, you need to stop the sandblasting operation and open the chamber door 4. Loosening the locking bolt 32 allows the connecting rod 31 to be pulled outward within the connecting cylinder 3, changing the outward extension length of the sandblasting head 36. Then, tightening the locking bolt 32 locks the connecting rod 31 in place. Holding the connecting cylinder 3 prevents the magnetic plate 2 from adhering to the inner wall of the insulating rubber, allowing it to be attached to other suitable positions on the inner wall of the insulating rubber, facilitating changes in the position of the sandblasting head 36. Alternatively, when handheld use is required, loosening the locking bolt 32 to release the locking of the connecting rod 31 when sandblasting is stopped allows the connecting rod 31 to rotate via the protrusion 311, while holding the handle 37 restricts the extension rod 3. 3. Rotating the screw 312 on the surface of the protrusion 311 allows it to be unscrewed from the threaded groove 331, thus allowing the extension rod 33 to be removed directly. Afterward, the sandblasting head 36 can be held by the handle 37 for sandblasting and polishing. When it is necessary to reconnect the extension rod 33 to the end of the protrusion 311 in the same way, the sand that may remain on the surface of the threaded groove 331 and the screw 312 should be cleaned with a brush first. Then, the same method should be used to screw the screw 312 into the threaded groove 331 to reconnect the extension rod 33 to the end of the protrusion 311. Finally, the locking bolt 32 should be tightened to lock the connecting rod 31.
Claims
1. A sandblasting and polishing device for producing cast steel parts, comprising an isolation box (1), a magnetic suction plate (2), and a connecting cylinder (3), characterized in that: The magnetic plate (2) is magnetically attached to the inner wall surface of the isolation box (1). The connecting cylinder (3) is fixed to the surface of the magnetic plate (2). A connecting rod (31) is slidably inserted inside the connecting cylinder (3). A locking bolt (32) is screwed onto the surface of the end of the connecting cylinder (3). The end of the locking bolt (32) penetrates into the connecting cylinder (3) and abuts against the surface of the connecting rod (31). The end of the connecting rod (31) is fixed with a protrusion (311), and a stud (312) is provided on the surface of the protrusion (311). An extension rod (33) is also provided on the side of the protrusion (311). The extension rod (33) is connected to the end of the connecting rod (31) by screwing the stud (312) into the threaded groove (331) on the surface of the extension rod (33). The end of the extension rod (33) is connected to a fixing sleeve (35) through a damping ball head (34). A sandblasting head (36) is locked inside the fixing sleeve (35). The sand inlet and air inlet of the sandblasting head (36) are connected to the sand inlet pipe (11) and air inlet pipe (12) on the upper surface of the isolation box (1) through a hose. A handle (37) is also fixed on the side of the extension rod (33).
2. The sandblasting and polishing device for producing cast steel parts according to claim 1, characterized in that: The outer ring of the damping ball head (34) is fitted with a rubber ball sleeve (341), and the outer ring of the locking bolt (32) is fitted with a rubber sleeve (321) on the surface of the connecting cylinder (3). The other end of the rubber sleeve (321) abuts against the bottom surface of the nut of the locking bolt (32).
3. The sandblasting and polishing device for producing cast steel parts according to claim 1, characterized in that: An observation window (13) is provided at the front end of the isolation box (1), and the observation window (13) is located in the middle of the front end of the isolation box.
4. The sandblasting and polishing device for producing cast steel parts according to claim 1, characterized in that: The front end of the isolation box (1) is fitted with a rotatable door (4) via a hinge, and the door (4) is locked by a tongue lock.
5. The sandblasting and polishing device for producing cast steel parts according to claim 4, characterized in that: The surface of the box door (4) has two through openings (41), and the outer surface of the box door (4) around the through openings (41) is magnetically attached to a pressure ring (42).
6. The sandblasting and polishing device for producing cast steel parts according to claim 1, characterized in that: The surface of the magnetic suction plate (2) is fixed with a rubber pad (21), and the magnetic suction plate (2) is anti-slip against the inner surface of the isolation box (1) through the rubber pad (21).