Modularized quick-mounting structure of sealing assembly

Abstract

The utility model relates to the field of mechanical sealing and assembling, in particular to a sealing assembly modularization fast-assembling structure which comprises a sealing plate, pressing blocks are horizontally arranged on the periphery of the sealing plate in a sliding mode, wool felt is arranged on the periphery of any pressing block in a surrounding mode, an elastic space is formed between the wool felt and the pressing blocks, and abutting springs are arranged in the elastic space. One end of each abutting spring is matched with the corresponding pressing block in an abutting mode, the other end of each abutting spring is matched with the corresponding wool felt in an abutting mode, the sliding direction of the pressing blocks is consistent with the length direction of the abutting springs correspondingly abutting against the pressing blocks, and a pressing plate used for pushing the pressing blocks to horizontally slide is further arranged above the pressing blocks. The pressing blocks slidably arranged on the periphery of the sealing plate and the abutting springs in the elastic space are used in cooperation with the pressing plate capable of pushing the pressing blocks to slide, rapid installation can be achieved, the situation that the springs are manually extruded one by one is avoided, the installation efficiency is improved, meanwhile, the circumferential pressure of the felt can be more uniform, atmosphere leakage is reduced, and the service life of the felt is prolonged. And the pressure of all the springs does not need to be completely relieved during maintenance.

Description

Technical Field

[0001] This application relates to the field of mechanical seals and assembly, and in particular to a modular quick-assembly structure for a sealing component. Background Technology

[0002] In the development of selective laser melting (SLM) 3D printing equipment, atmosphere control in the build chamber plays a crucial role in ensuring print quality. With the widespread application of 3D printing technology in various fields, the requirements for print quality are increasingly stringent, and the atmosphere environment of the build chamber directly affects the performance and precision of the printed products. Good atmosphere control can reduce the introduction of impurities and minimize adverse phenomena such as oxidation, thereby improving the quality and stability of the printed products. Therefore, how to effectively achieve atmosphere isolation and protection between the build chamber environment and the lifting cylinder has become one of the key issues in this field.

[0003] Currently, most equipment on the market uses a method of spring-pressed felt around the base plate assembly to isolate the atmosphere between the molding chamber environment and the lifting cylinder. The specific installation process involves first placing the sealing plate inside the molding cylinder, then installing the felt and pressure plate, and finally pressing the springs in one by one to achieve the installation effect. This traditional installation method is widely used and has become a common technique in this field.

[0004] However, the existing installation method that relies on springs to compress the felt around the substrate assembly has many obvious drawbacks. First, the installation efficiency is very low, requiring manual compression of each spring, which takes a long time for each installation. Second, due to the manual operation, the circumferential pressure difference of the felt is large, which can easily lead to air leakage. Third, maintenance is very difficult, as disassembly requires the complete release of all spring pressure, which prolongs equipment downtime. In addition, there is a risk of spring popping out during the compression process, posing a certain safety hazard. Utility Model Content

[0005] To address the problems in the installation of wool felt in the prior art, this application provides a modular quick-installation structure for sealing components.

[0006] This application provides a modular quick-installation structure for a sealing component, which adopts the following technical solution:

[0007] A modular quick-install structure for a sealing component includes a sealing plate. Pressure blocks are horizontally slidably disposed around the sealing plate. Each pressure block is surrounded by a felt, forming an elastic space between the felt and the pressure block. A retaining spring is disposed within the elastic space, with one end of the retaining spring engaging with the pressure block and the other end engaging with the felt. The sliding direction of the pressure block is consistent with the length direction of the corresponding retaining spring. A pressure plate is also disposed above the pressure block for pushing it to slide.

[0008] By adopting the above technical solution, using the pressure blocks that slide around the sealing plate and the clamping springs in the elastic space, along with the pressure plate that can push the pressure blocks to slide, rapid installation can be achieved, avoiding the need to manually squeeze each spring one by one, thus improving installation efficiency. At the same time, it can make the circumferential pressure of the felt more uniform, reduce atmosphere leakage, and eliminate the need to completely release all spring pressure during maintenance, reducing equipment downtime and eliminating the safety hazard of spring popping out. It effectively achieves atmosphere isolation protection between the forming chamber environment and the lifting cylinder, improving the quality and stability of printed products.

[0009] Preferably, the pressure plate is provided with a first wedge-shaped abutment surface for pushing the pressure block to slide, and the pressure block is provided with a second wedge-shaped abutment surface, wherein the first wedge-shaped abutment surface and the second wedge-shaped abutment surface form a sliding fit.

[0010] By adopting the above technical solution, the first wedge-shaped contact surface of the pressure plate and the second wedge-shaped contact surface of the pressure block form a sliding fit, which can push the pressure block to slide, thereby compressing or extending the clamping spring. Compared with the traditional method of manually squeezing the spring one by one, it can improve the installation efficiency and avoid the problem of air leakage caused by the large circumferential pressure difference of the felt due to manual operation.

[0011] Preferably, the pressure plate is further provided with a clamping bolt, which passes through the pressure plate and is threadedly connected to the sealing plate.

[0012] By adopting the above technical solution, a pressure block is slidably set around the existing sealing plate, wool felt is placed around the pressure block and a clamping spring is set in the elastic space between the two, a pressure plate is set above the pressure block to push it to slide, and the pressure plate is slidably engaged with the second wedge-shaped abutment surface of the pressure block by the first wedge-shaped abutment surface of the pressure plate. The pressure plate is threaded through the pressure bolt and connected to the sealing plate by the thread. The pressure plate can be easily and steadily pushed to slide by the pressure block, avoiding manual squeezing of the springs one by one, improving installation efficiency, reducing installation time, and making the circumferential pressure of the felt more uniform, reducing air leakage. At the same time, during maintenance and disassembly, only the clamping bolt needs to be loosened, shortening equipment downtime and reducing safety hazards.

[0013] Preferably, the wool felt is rectangular, and the bent part of the wool felt is provided with a corner block that matches the bent part of the wool felt. One side of the corner block forms an abutting fit with the wool felt, and the other side forms an abutting fit with the clamping spring.

[0014] By adopting the above technical solution, the problems existing in the current installation method of relying on springs to compress the wool felt around the substrate assembly are solved. By using a sealing plate, a sliding pressure block, wool felt, a clamping spring, and a pressure plate, atmospheric isolation protection is achieved between the molding chamber environment and the lifting cylinder. The corner blocks that match the bends of the rectangular wool felt allow the wool felt to be better supported and compressed at the bends, enhancing the sealing performance at the bends, further preventing atmosphere leakage, and improving the sealing effect. At the same time, it also helps to improve the stability of the entire sealing structure after installation, thereby improving the quality and stability of the printed products.

[0015] Preferably, a pressure plate is provided between the clamping spring and the wool felt at the straight line, with one side of the pressure plate abutting the clamping spring and the other side abutting the wool felt.

[0016] By adopting the above technical solution, pressure blocks are slidably set around the sealing plate, and a clamping spring is set between the pressure blocks and the wool felt. A pressure plate is set at the straight line between the clamping spring and the wool felt, so that the pressure of the clamping spring can be evenly distributed on the wool felt. This can further reduce the circumferential pressure difference of the felt, reduce the risk of atmosphere leakage, and improve installation efficiency due to the setting of pressure blocks and pressure plates. It also avoids the risk of spring popping out during compression, improves safety, facilitates disassembly and maintenance, shortens equipment downtime, and effectively achieves atmosphere isolation protection between the forming chamber environment and the lifting cylinder, thereby improving the quality and stability of printed products.

[0017] Preferably, the sealing plate is provided with a sliding groove, and the bottom of the pressure block is provided with a slider, the slider and the sliding groove forming a sliding fit.

[0018] By adopting the above technical solution, the pressure block can slide stably and smoothly on the sealing plate, which is conducive to pushing the pressure block to accurately abut against the clamping spring, ensuring the accuracy of the wool felt installation position; it can also ensure that the force applied to each part is uniform, effectively reducing the circumferential pressure difference of the wool felt and preventing air leakage.

[0019] Preferably, a plurality of partition blocks are fixedly disposed on the sealing plate within the elastic space, and a plurality of clamping springs are provided, with the plurality of clamping springs and partition blocks being arranged alternately in sequence.

[0020] By adopting the above technical solution, multiple partition blocks can separate and position multiple clamping springs, ensuring that each clamping spring is in the right position, avoiding mutual interference or misalignment of the springs, so that the clamping springs can more stably abut against the pressure block and wool felt, ensuring uniform pressure distribution in the elastic space, improving the clamping effect on the wool felt, better realizing the atmosphere isolation protection between the molding chamber environment and the lifting cylinder, and at the same time helping to improve the accuracy and convenience of installation, further improving installation efficiency.

[0021] Preferably, both the pressure block and the pressure plate are provided with connection holes for other components to pass through.

[0022] By adopting the above technical solution, other components can pass through the connection holes of the pressure block and pressure plate, which facilitates the connection and cooperation of the modular quick-installation mechanism of the sealing component with other components, ensuring the normal operation and assembly of the entire system.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a structure where the pressure plate pushes the pressure block to slide, the manual squeezing of each spring is avoided, thus improving the installation efficiency of the sealing assembly;

[0025] 2. The pressure block slides under the push of the pressure plate and squeezes the wool felt by the clamping spring, which can reduce the circumferential pressure difference of the felt, prevent air leakage, and improve print quality;

[0026] 3. Facilitates the disassembly and maintenance of the sealing components, reduces equipment downtime, lowers production costs, and avoids the risk of spring compression and ejection, thus improving operational safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure within the elastic space in an embodiment of this application;

[0029] Figure 3 This is an exploded view of the overall structure in the embodiments of this application.

[0030] Reference numerals: 1. Sealing plate; 2. Pressure block; 3. Wool felt; 4. Pressing spring; 5. Pressure plate; 6. Elastic space; 7. Pressure plate; 8. Corner block; 9. Separator block; 10. Slider; 11. Sliding groove; 12. First wedge-shaped abutment surface; 13. Second wedge-shaped abutment surface; 14. Pressing bolt; 15. Connecting hole. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0032] This application discloses a modular quick-assembly structure for sealing components.

[0033] Reference Figure 1 and Figure 2 A modular quick-installation structure for a sealing component includes a sealing plate 1, a pressure block 2, a wool felt 3, a clamping spring 4, and a pressure plate 5. The sealing plate 1 serves to support and install other components. The pressure blocks 2 are horizontally slidably arranged around the sealing plate 1. The wool felt 3 is arranged around the outer side of the pressure blocks 2, and an elastic space 6 is formed between the wool felt 3 and the pressure blocks 2. The clamping spring 4 is arranged in the elastic space 6 and is used to push the wool felt 3 against the inner wall of the molding cylinder.

[0034] Reference Figure 1 and Figure 2 The wool felt 3 is shaped like a rectangle that matches the forming cylinder. The edges of the wool felt 3 rectangle are straight, and the bends of the wool felt 3 rectangle are rounded. The wool felt 3 corresponding to the pressure block 2 is also shaped like a rectangle and is divided into multiple segments. The sliding direction of the pressure block 2 corresponding to the edges of the wool felt 3 rectangle is perpendicular to the straight edges of the wool felt 3. The sliding direction of the pressure block 2 corresponding to the bends of the wool felt 3 rectangle is perpendicular to the tangent at the midpoint of the arc of the bend of the wool felt 3 rectangle.

[0035] Reference Figure 2 and Figure 3 Within the elastic space 6, pressure plates 7 are provided at the straight lines of the rectangular shape of the wool felt 3 to ensure uniform force on the wool felt 3. The pressure plates 7 and the wool felt 3 form an abutting fit. Within the elastic space 6, corner blocks 8 are provided at the bends of the rectangular shape of the wool felt 3, which match the bends of the rectangular shape of the wool felt 3. The corner blocks 8 and the bends of the wool felt 3 form an abutting fit.

[0036] Reference Figure 2 and Figure 3Multiple clamping springs 4 are arranged within the elastic space 6. Multiple partition blocks 9 are fixedly arranged on the sealing plate 1 within the elastic space 6. The clamping springs 4 and partition blocks 9 are arranged alternately, meaning that a clamping spring 4 and a partition block 9 are arranged between any two adjacent partition blocks 9. One end of the clamping spring 4 located at the straight section of the rectangular shape of the wool felt 3 abuts against the corresponding pressure block 2, and the other end abuts against the pressure plate 7. One end of the clamping spring 4 located at the bend of the rectangular shape of the wool felt 3 abuts against the corresponding pressure block 2, and the other end forms abutment with the corner block 8. The sliding direction of the pressure block 2 is consistent with the length direction of the corresponding clamping spring 4. The clamping springs 4 provide pressure to the wool felt 3, ensuring tight contact with surrounding components and achieving a seal. The pressure plate 7 disperses the pressure of the clamping springs 4, making the wool felt 3 more evenly stressed. Corner block 8 allows the wool felt 3 to receive better support and compression at the bend, enhancing the sealing at the bend, further preventing air leakage, and improving the sealing effect. It also helps to improve the stability of the entire sealing structure after installation, thereby improving the quality and stability of the printed products. The function of the separator block 9 is to position and separate the clamping spring 4 to prevent the springs from interfering with each other.

[0037] Reference Figure 2 and Figure 3 The bottom of the pressure block 2 is provided with a slider 10, and the sealing plate 1 is provided with a sliding groove 11. The shape of the sliding groove 11 matches the slider 10, and the slider 10 and the sliding groove 11 form a sliding fit.

[0038] Reference Figure 2 and Figure 3 A pressure plate 5 is positioned above the pressure block 2. The pressure plate 5 has a first wedge-shaped contact surface 12 for pushing the pressure block 2 to slide, and the pressure block 2 has a second wedge-shaped contact surface 13. The first wedge-shaped contact surface 12 and the second wedge-shaped contact surface 13 form a sliding fit. This wedge-shaped surface fit converts the vertical pressure of the pressure plate 5 into the horizontal sliding of the pressure block 2, thereby compressing the clamping spring 4. A clamping bolt 14 is also provided on the pressure plate 5, passing through the pressure plate 5 and threadedly connected to the sealing plate 1. By rotating the clamping bolt 14, the pressure of the pressure plate 5 on the pressure block 2 can be adjusted, thereby controlling the degree of compression of the clamping spring 4. Both the pressure block 2 and the pressure plate 5 have connection holes 15 for other components to pass through.

[0039] The implementation principle of this embodiment is as follows: During installation, the pressure block 2 is first installed on the sliding groove 11 of the sealing plate 1, and the wool felt 3 is placed around the pressure block 2. The clamping spring 4, the separator block 9, and the pressure plate 7 are then installed, and the corner block 8 is installed at the bend of the wool felt 3. Then, the pressure plate 5 is placed above the pressure block 2, so that the first wedge-shaped contact surface 12 and the second wedge-shaped contact surface 13 engage. By rotating the clamping bolt 14, the pressure plate 5 moves downward, and its first wedge-shaped contact surface 12 pushes the pressure block 2 to slide on the sealing plate 1, compressing the clamping spring 4, so that the wool felt 3 is in close contact with the forming cylinder, achieving a seal. This method avoids manually squeezing the springs one by one, improving installation efficiency, and also makes the circumferential pressure of the felt more uniform, reducing air leakage. During maintenance, simply loosen the clamping bolt 14, the pressure plate 5 moves upward, and the pressure block 2 resets under the action of the clamping spring 4, allowing for easy disassembly of the components, reducing equipment downtime and safety hazards.

[0040] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular quick-installation structure for a sealing assembly, characterized in that: The system includes a sealing plate (1), and pressure blocks (2) are horizontally slidably arranged around the sealing plate (1). Each pressure block (2) is surrounded by wool felt (3). An elastic space (6) is formed between the wool felt (3) and the pressure block (2). A clamping spring (4) is arranged in the elastic space (6). One end of the clamping spring (4) is in contact with the pressure block (2), and the other end is in contact with the wool felt (3). The sliding direction of the pressure block (2) is consistent with the length direction of the corresponding clamping spring (4). A pressure plate (5) is also arranged above the pressure block (2) for pushing the pressure block (2) to slide horizontally.

2. The modular quick-installation structure for a sealing assembly according to claim 1, characterized in that: The pressure plate (5) is provided with a first wedge-shaped contact surface (12) for pushing the pressure block (2) to slide, and the pressure block (2) is provided with a second wedge-shaped contact surface (13). The first wedge-shaped contact surface (12) and the second wedge-shaped contact surface (13) form a sliding fit.

3. The modular quick-installation structure for a sealing assembly according to claim 2, characterized in that: The pressure plate (5) is also provided with a clamping bolt (14), which passes through the pressure plate (5) and is threadedly connected to the sealing plate (1).

4. The modular quick-installation structure for a sealing assembly according to claim 1, characterized in that: The wool felt (3) is rectangular, and the bent part of the wool felt (3) is provided with a corner block (8) that matches the bent part of the wool felt (3). One side of the corner block (8) forms an abutting fit with the wool felt (3), and the other side forms an abutting fit with the clamping spring (4).

5. The modular quick-installation structure for a sealing assembly according to claim 4, characterized in that: A pressure plate (7) is also provided between the clamping spring (4) and the wool felt (3) at the straight line. One side of the pressure plate (7) abuts against the clamping spring (4), and the other side abuts against the wool felt (3).

6. The modular quick-installation structure for a sealing assembly according to claim 1, characterized in that: The sealing plate (1) is provided with a sliding groove (11), and the bottom of the pressure block (2) is provided with a slider (10), and the slider (10) and the sliding groove (11) form a sliding fit.

7. The modular quick-installation structure for a sealing assembly according to claim 5, characterized in that: Multiple partition blocks (9) are fixedly arranged on the sealing plate (1) within the elastic space (6), and multiple clamping springs (4) are provided. The multiple clamping springs (4) and partition blocks (9) are arranged alternately in sequence.

8. The modular quick-installation structure for a sealing assembly according to claim 1, characterized in that: Both the pressure block (2) and the pressure plate (5) are provided with connection holes (15) for other components to pass through.

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