Top sealing device of shot blasting chamber
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-11
AI Technical Summary
目前市面上抛丸机顶部密封主要是橡胶皮密封(易损坏、需要更换维护)，翻盖盖板密封(需要翻转、占用一定的空间)，或者直接没有密封处理，容易造成丸料的泄漏
[0023]1.滑动密封组件关闭时形成的迷宫阻挡区域，由两侧U形折弯件制作，采用高锰板材料，能在抛丸使用中不损坏，结构稳定、使用寿命长，基本上不用更换维护，不用像橡胶板一样易损坏，需要经常更换备件。
Smart Images
Figure CN224616085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting equipment technology, specifically to a top sealing device for a shot blasting chamber. Background Technology
[0002] With market development and the adoption of various new technologies in the foundry industry, product production efficiency is increasing, and product surface finish requirements are becoming more stringent, placing higher demands on equipment. In recent years, the development trend of foundry equipment has been towards full automation and maintenance-free operation, minimizing equipment operating costs. For shot blasting machines, reducing operating costs has become another competitive point in the market. Achieving full automation while ensuring reliable, maintenance-free operation further enhances product competitiveness. Currently, maintenance of shot blasting machines mainly involves equipment repair, handling shot leakage, and spare parts replacement. The top seals of current shot blasting machines are primarily rubber seals (easily damaged and requiring replacement and maintenance), flip-top seals (requiring flipping and occupying space), or no seal at all, easily leading to shot leakage. Therefore, there is a need to research and develop a relatively stable, low-maintenance or maintenance-free top sealing structure. Summary of the Invention
[0003] To address the aforementioned problems, the purpose of this utility model is to provide a shot blasting chamber top sealing device with a stable structure and long service life.
[0004] The top sealing device of the shot blasting chamber includes two drive assemblies and two sliding sealing assemblies. The two sliding sealing assemblies are located on both sides of the top of the shot blasting chamber, and one drive assembly is connected to one sliding sealing assembly.
[0005] Under the action of their respective drive components, the two sliding sealing components can form a separation or engagement movement. When they are separated, the top of the shot blasting chamber is in an open state, and when they are engaged, the shot blasting chamber is in a closed state.
[0006] The sliding seal assembly includes a sliding frame, a sliding plate, and a sealing component;
[0007] The sliding plate is fixedly connected to the rear end of the sliding frame, and the sealing component is fixedly installed at the front end of the sliding frame.
[0008] When the sealing components in the two sliding sealing assemblies come into contact, a labyrinthine multi-stage shot blasting barrier area is formed between them;
[0009] The driving component is located at the rear end of the sliding frame, connected to the sliding frame, and drives the sliding frame to move;
[0010] A guide wheel bearing assembly is provided on one side of the drive assembly to form a sliding support for the sliding of the sliding seal assembly;
[0011] The sealing component is a U-shaped bent piece made of high manganese plate material and is fixedly mounted on the sliding frame. The sealing component is arranged with its opening facing forward. The sealing components in the two sliding sealing assemblies are arranged vertically and staggered.
[0012] As a further embodiment: a wire brush is installed on the sliding frame above the sealing component, and when the two sliding sealing components are in the closed state, the wire brushes on the two sliding sealing components cover the space above the sealing components.
[0013] As a further embodiment: an outer baffle is vertically fixed at the rear end of the sliding frame. The outer baffle is located outside the shot blasting chamber. When the two sliding sealing components are engaged, the outer baffle is close to the outer wall of the shot blasting chamber.
[0014] As a further embodiment: a horizontally arranged top baffle is fixedly installed above the shot blasting chamber on the sliding frame, the height of the top baffle being higher than the edge of the top of the shot blasting chamber; an inner baffle is vertically fixedly installed at the lower center of the top baffle, the inner baffle extending towards the top of the shot blasting chamber; the distance between the inner baffle and the inner wall of the shot blasting chamber is greater than the moving distance of the sliding frame.
[0015] As a further embodiment: the guide wheel bearing assembly includes a pair of supports and four guide wheels, with rails mounted on each pair of supports;
[0016] The four guide wheels are located on both sides of the sliding plate, and they roll in pairs on a track.
[0017] The guide wheel is mounted on the upper surface of the sliding plate via a mounting block.
[0018] A pressure block is fixedly installed on the support, and a pressure roller is rotatably installed on the pressure block. The pressure roller and the upper surface of the sliding plate form a rolling fit.
[0019] As a further embodiment, a counterweight component is fixedly installed on the upper end of the sliding plate away from the sliding frame.
[0020] As a further embodiment: the sliding frame includes a 7-shaped mounting plate and a loading top plate; the lower end of the mounting plate is fixedly mounted on the loading top plate; the upper end of the mounting plate is for mounting the wire brush, the outer side of the mounting plate is for mounting the sealing component, and the inner side of the mounting plate is fixedly mounted to the sliding plate; an outer baffle is fixedly mounted on the outer side of the loading top plate; and a top baffle is fixedly mounted below the loading top plate.
[0021] By employing the above technical solution, this device has the functions of preventing shot leakage from the top of the shot blasting chamber and reducing maintenance. The drive assembly pushes the sliding sealing assembly to slide left and right in the horizontal direction at the top of the shot blasting chamber. When the sliding sealing assembly moves to the sides, it opens the top seal of the shot blasting chamber, allowing the shot blasting hook to enter the chamber and stop at a designated area. When the sliding sealing assembly moves to the center, it closes the top seal of the shot blasting chamber. When closed, a labyrinthine blocking area is formed between the sealing components on both sides, i.e., the U-shaped bends, which blocks the shot and prevents leakage. Shot splashed from the running gap between the slide plate and the chamber body slides into the chamber body's return channel and then flows back into the shot blasting chamber. The guide wheel bearing assembly provides sliding support for the sliding sealing assembly and prevents the sliding sealing assembly from shifting left and right.
[0022] The top sealing device has the following advantages:
[0023] 1. The labyrinthine blocking area formed when the sliding sealing assembly is closed is made of U-shaped bending parts on both sides and is made of high manganese plate material. It can withstand shot blasting without damage, has a stable structure, a long service life, and basically does not require replacement or maintenance. Unlike rubber plates, it is not easily damaged and does not require frequent replacement of spare parts.
[0024] 2. By forming a labyrinth between the U-shaped bends to create multiple shot blasting blocking areas, it is possible to effectively prevent shot leakage from the top of the shot blasting chamber.
[0025] This sealing device is used on hook shot blasting machines, primarily by casting manufacturers. This sealing structure prevents shot leakage, is simple and stable, reduces daily maintenance workload, and is truly maintenance-free, enabling unmanned operation. With the advancement of full automation and intelligence, this fully automated, maintenance-free mechanism will see widespread application. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0027] Figure 2 This is a top view of the structure of this utility model;
[0028] Figure 3 This is a side view of the present invention.
[0029] In the attached diagram, the markings represent the following:
[0030] 1. Drive cylinder, 2. Drive bracket, 3. Sliding frame, 4. Sliding plate, 5. U-shaped bending piece, 6. Opening, 7. Wire brush, 8. Outer baffle, 9. Top baffle, 10. Inner baffle, 11. Support, 12. Guide wheel, 13. Track, 14. Mounting block, 15. Pressure block, 16. Pressure roller, 17. Counterweight component, 18. L-shaped mounting plate, 19. Loading top plate, 20. Shot blasting chamber, 21. Limit switch. Detailed Implementation
[0031] 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. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0032] Please see Figure 1-3 As shown, the top sealing device of the shot blasting chamber is installed on the top of the shot blasting machine. It is used to seal the open top of the shot blasting chamber in a way that can be closed and opened. The workpiece to be shot blasted is sent into the shot blasting chamber 20 from the top of the shot blasting chamber by hoisting. Therefore, this sealing device is required to cover and seal the top of the shot blasting chamber.
[0033] This sealing device includes two drive components and two sliding sealing components. The two sliding sealing components are located on opposite sides of the top of the shot blasting chamber. Each drive component is connected to one sliding sealing component, and each drive component drives the movement of one sliding sealing component. Under the action of their respective drive components, the two sliding sealing components can move apart or together. When they are apart, the top of the shot blasting chamber is open; when they are together, the shot blasting chamber is closed. When the top of the shot blasting chamber is open, materials can be loaded and unloaded from the top of the shot blasting chamber. When the top of the shot blasting chamber is closed, the shot blasting process can be carried out. The two drive components can be understood as each drive component including one or more linear actuators such as drive cylinders 1 / hydraulic cylinders, which drive the reciprocating movement of the sliding sealing components on the top of the shot blasting chamber. The drive cylinder 1 is mounted on the top of the shot blasting machine via a drive bracket 2, and the drive end of the drive cylinder 1 is connected to the sliding sealing component, thereby enabling it to move.
[0034] The sliding sealing assembly includes a sliding frame 3, a sliding plate 4, and a sealing component. The sliding plate 4 is arranged horizontally and is fixedly connected to the rear end of the sliding frame 3. When the sliding plate 4 slides, it can drive the sliding frame 3 to move together. The sealing component is welded and fixedly installed at the front end of the sliding frame 3. When the sealing components in the two sliding sealing assemblies are engaged, a maze-like multi-stage shot blasting barrier area is formed between them to reduce the possibility of shot blasting material seeping out from the top of the shot blasting chamber 20.
[0035] The drive component is located at the rear end of the sliding frame 3 and is connected to the sliding frame 3. It drives the sliding frame 3 to move. When the two drive components drive their respective connected sliding frames 3 to move in opposite directions at the same time, the sealing components can cooperate with each other to form the above-mentioned multi-stage shot blocking area. The top of the shot blasting chamber forms a shielding seal. When the two drive components drive their respective connected sliding frames 3 to move in opposite directions at the same time, the sealing components separate and the top of the shot blasting chamber opens.
[0036] A guide wheel bearing assembly is provided on one side of the drive assembly to form a sliding support for the sliding of the sliding sealing assembly. The guide wheel bearing assembly can improve the stability of the sliding plate 4 during the movement process, thereby improving the docking stability of the sealing components.
[0037] In one embodiment, the sealing component is a U-shaped bent piece 5 made of high-manganese steel plate, fixedly mounted on the sliding frame 3, with its opening facing forward. The high-manganese steel plate material is less prone to damage during shot blasting, eliminating the need for replacement parts like rubber plates, thus achieving maintenance-free operation. The sealing components in the two sliding sealing assemblies are staggered vertically, with a portion of one U-shaped bent piece 5 inserted into the opening of another U-shaped bent piece 5, forming a labyrinthine multi-stage shot-blocking area. Alternatively, the sealing component can be designed with multiple consecutive W-shaped bends to further increase the number of shot-blocking stages and enhance shot-blocking capability. In a further design, the front end of the U-shaped bent piece 5 can reach the bottom of another U-shaped bent piece 5, forming a closed structure of multiple shot-blocking stages and further enhancing shot-blocking capability. The U-shaped bent piece has an opening 6 for the hook to rest during shot blasting.
[0038] In one embodiment, a wire brush 7 is mounted on the sliding frame 3 above the sealing component. When the two sliding sealing components are engaged, the wire brushes 7 on the two sliding sealing components cover the space above the sealing components. That is, multiple wire brushes 7 are mounted on the sliding frame 3 to cover the space above the sealing components for simple cleaning after shot blasting, while also providing a degree of sealing over the space above the sealing components. The wire brushes 7 on the two sliding frames 3 can be flush, and when the shot blasting chamber is closed, the tips of the wire brushes 7 make contact.
[0039] In one embodiment, an outer baffle 8 is vertically fixed at the rear end of the sliding frame 3. The outer baffle 8 is located outside the shot blasting chamber 20. When the two sliding sealing components are engaged, the outer baffle 8 is close to the outer wall of the shot blasting chamber 20. The outer baffle 8 can block the side of the top of the shot blasting chamber. When the outer baffle 8 moves into place toward the outer wall of the shot blasting chamber 20, the inner side of the outer baffle 8 can fit against the outer wall of the shot blasting chamber 20, or it can have a gap smaller than the diameter of the shot, thus effectively blocking the side of the top of the shot blasting chamber.
[0040] In one embodiment, a horizontally arranged top baffle 9 is fixedly installed above the shot blasting chamber 20 on the sliding frame 3. The height of the top baffle 9 is higher than the edge of the top of the shot blasting chamber to prevent the movement of the top baffle 9 from interfering with the top of the shot blasting chamber. An inner baffle 10 is vertically fixed at the lower center of the top baffle 9. The inner baffle 10 extends towards the top of the shot blasting chamber to prevent the shot material in the shot blasting chamber 20 from flying horizontally. The shot material at the top of the shot blasting chamber flows downward back into the shot blasting chamber 20 through the inner baffle 10. The distance between the inner baffle 10 and the inner wall of the shot blasting chamber 20 is greater than the moving distance of the sliding frame 3. That is, when the top of the shot blasting chamber is open, the inner baffle 10 does not contact the inner wall of the shot blasting chamber 20, maintaining a certain gap. When the top of the shot blasting chamber is closed, the inner baffle 10 and the shot material return channel (such as...) in the shot blasting chamber 20 are closed. Figure 3 (As indicated by the arrow in the image) On one side, it is used to create downward constraint on the shot. A small amount of shot splashes into the shot return channel through the gap below the top baffle 9 at the top of the shot blasting chamber, and can flow back into the shot blasting chamber 20, achieving complete leak-free operation.
[0041] In one embodiment, the guide wheel support assembly includes a pair of supports 11 and four guide wheels 12. Tracks 13 are respectively mounted on the supports 11, arranged along the moving direction of the sliding plate 4. The four guide wheels 12 are located on both sides of the sliding plate 4, and roll in pairs on one track 13. The guide wheels 12 are mounted on the upper surface of the sliding plate 4 via mounting blocks 14. Thus, the sliding plate 4 is moved and assembled above the two tracks 13 by the guide wheels 12 and mounting blocks 14. A pressure block 15 is fixedly provided on the supports 11, and a pressure wheel 16 is rotatably mounted on the pressure block 15, forming a rolling engagement with the upper surface of the sliding plate 4. The pressure block 15 and pressure wheel 16 provide a certain holding force to the upper surface of the sliding plate 4, enhancing the stability of the sliding plate 4 during movement.
[0042] In one embodiment, a counterweight component 17 is fixedly installed on the end of the sliding plate 4 away from the sliding frame 3. Specifically, it is a counterweight steel plate installed on the sliding plate 4. The counterweight component 17 is used to balance the center of the sliding plate 4, thereby enhancing the stability of the sliding plate 4 during movement.
[0043] In one embodiment, the sliding frame 3 includes a 7-shaped mounting plate 18 and a loading top plate 19. The lower end of the 7-shaped mounting plate 18 is welded and fixedly mounted on the loading top plate 19. The upper surface of the 7-shaped mounting plate 18 is used for mounting the wire brush 7, providing a stable mounting position for the wire brush 7. The outer side of the 7-shaped mounting plate 18 is used for mounting the U-shaped bending piece 5. The inner side of the 7-shaped mounting plate 18 is fixedly mounted to the sliding plate 4. Of course, the loading top plate 19 can also be fixedly mounted to the sliding plate 4. The outer baffle 8 is fixedly mounted on the outer side of the loading top plate 19. The top baffle 9 is fixedly mounted below the loading top plate 19. By setting the loading top plate 19, the 7-shaped mounting plate 18, the inner baffle 10, the outer baffle 8, and the top baffle 9 can be fixedly formed into a whole. The loading top plate 19 is not limited to a plate shape and can also be a profile structure. It should be noted that the fixing method involved in this application is not limited to welding and can also use common fixing connection methods such as bolts as needed.
[0044] In one embodiment, the travel of the sliding plate 4 can be limited by a limit switch 21 installed on the top of the shot blasting machine. That is, when the drive assembly moves the sliding plate 4 to the shot blasting chamber open / closed state, the position is fed back by the limit switch, and the pushing force on the sliding plate 4 is stopped.
[0045] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present utility model used to illustrate the technical solutions of the present utility model, and are not intended to limit them, much less limit the patent scope of the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model. In addition, the direct or indirect application of the technical solutions of the present utility model to other related technical fields is similarly included within the patent protection scope of the present utility model.
Claims
1. A top sealing device for a shot blasting chamber, comprising two driving assemblies and two sliding sealing assemblies, wherein the two sliding sealing assemblies are located on opposite sides of the top of the shot blasting chamber, and one driving assembly is correspondingly connected to one sliding sealing assembly, characterized in that, Under the action of their respective drive components, the two sliding sealing components can form a separation or engagement movement. When they are separated, the top of the shot blasting chamber is in an open state, and when they are engaged, the shot blasting chamber is in a closed state. The sliding sealing assembly includes a sliding frame, a sliding plate, and a sealing component; the sliding plate is fixedly connected to the rear end of the sliding frame, and the sealing component is fixedly disposed at the front end of the sliding frame. When the sealing components in the two sliding sealing assemblies come into contact, a labyrinthine multi-stage shot blasting barrier area is formed between them; The driving component is located at the rear end of the sliding frame, connected to the sliding frame, and drives the sliding frame to move; A guide wheel bearing assembly is provided on one side of the drive assembly to form a sliding support for the sliding of the sliding seal assembly; The sealing component is a U-shaped bent piece made of high manganese plate material and is fixedly mounted on the sliding frame. The sealing component is arranged with its opening facing forward. The sealing components in the two sliding sealing assemblies are arranged vertically and staggered.
2. The shot blasting chamber top sealing device according to claim 1, characterized in that A wire brush is installed on the sliding frame above the sealing component. When the two sliding sealing components are in the closed state, the wire brushes on the two sliding sealing components cover the space above the sealing components.
3. The shot blasting chamber top sealing device as claimed in claim 1, wherein, An outer baffle is vertically fixed at the rear end of the sliding frame. The outer baffle is located outside the shot blasting chamber. When the two sliding sealing components are engaged, the outer baffle is close to the outer wall of the shot blasting chamber.
4. The shot blasting chamber top sealing device as claimed in claim 1, wherein, A horizontally arranged top baffle is fixedly installed above the shot blasting chamber on the sliding frame. The height of the top baffle is higher than the edge of the top of the shot blasting chamber. An inner baffle is vertically fixed at the center of the bottom of the top baffle and extends towards the top of the shot blasting chamber. The distance between the inner baffle and the inner wall of the shot blasting chamber is greater than the moving distance of the sliding frame.
5. The shot blasting chamber top sealing device as claimed in claim 1, wherein, The guide wheel bearing assembly includes a pair of supports and four guide wheels, with rails mounted on each pair of supports; The four guide wheels are located on both sides of the sliding plate, and they roll in pairs on a track. The guide wheel is mounted on the upper surface of the sliding plate via a mounting block. A pressure block is fixedly installed on the support, and a pressure roller is rotatably installed on the pressure block. The pressure roller and the upper surface of the sliding plate form a rolling fit.
6. The shot blasting chamber top sealing device as claimed in claim 1, wherein, A counterweight component is fixedly installed on the upper end of the sliding plate away from the sliding frame.
7. The shot blasting chamber top sealing device as claimed in claim 3, wherein, The sliding frame includes a 7-shaped mounting plate and a loading top plate; the lower end of the mounting plate is fixedly mounted on the loading top plate; The upper end of the mounting plate is for installing the wire brush, the outer side of the mounting plate is for installing the sealing components, and the inner side of the mounting plate is fixedly installed with the sliding plate; the outer baffle is fixedly installed on the outer side of the loading top plate; the top baffle is fixedly installed below the loading top plate.