Hole plugging jig for preparing particle catcher

Abstract

The utility model relates to the technical field of particle catcher preparation, in particular to a hole blocking jig for particle catcher preparation. The hole plugging jig comprises a supporting plate used for placing a filter element of the particle catcher, and a base plate. The supporting plate is provided with a bearing face used for making contact with the end face of the filtering element. And the bearing surface is vertical to a filtering channel in the filtering element. A plugging surface for contacting the end surface of the filtering element is arranged on the base plate. And a convex block is arranged on the plugging surface. And the convex block is embedded into the end part of the filtering channel to block the filtering channel. A filler area is arranged between every two adjacent convex blocks. And a filter channel of which the hole is to be blocked covers the interior of each filler area. And open pores for communicating with the filtering channels are formed in the filler area. According to the hole plugging jig for preparing the particle catcher, the hole plugging efficiency is improved, the probability of wrong hole plugging is reduced, the consistency of the hole plugging depth is improved, and then the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of particle catcher preparation, in particular to a hole plugging jig used for particle catcher preparation. Background Art

[0002] Particulate filters are primarily used to capture particulate matter in engine exhaust. During the operation of gasoline and diesel engines, incomplete combustion of the fuel produces a large number of tiny particles, such as soot, metal particles, sulfates, and polycyclic aromatic hydrocarbons. These particles, typically ranging in diameter from nanometers to micrometers, are trapped within the filter as exhaust passes through it, significantly reducing the amount of particulate matter released into the atmosphere.

[0003] For example, the diesel engine's particulate filter (DPF) is constructed primarily of recrystallized silicon carbide. Through its filtering mechanism, it effectively captures and reduces particulate matter in exhaust, minimizing environmental pollution and meeting emission standards. Recrystallized silicon carbide offers high hardness, strength, excellent thermal stability, and corrosion resistance. It also possesses excellent thermal shock resistance, high thermal conductivity, and a low coefficient of thermal expansion, enabling the DPF to operate for extended periods in complex environments characterized by high temperatures, corrosion, and vibration.

[0004] To ensure the filtration effectiveness of the particle trap, the main filter section typically uses a wall-flow filter channel design. This means that exhaust can only penetrate through the small holes in the wall of each channel, rather than passing directly through the channel. This means that when the air flows through the filter, it must pass through the channel wall, thereby filtering out particulate matter from the airflow.

[0005] To form the aforementioned filtration channel structure, a plugging operation is required at the end of the main filter section. Existing plugging solutions are primarily divided into manual and automatic methods. The manual plugging process involves applying tape to the end surface, manually drilling holes, scraping in slurry, drying with hot air, and then removing the tape. However, manual plugging suffers from low plugging efficiency, a high probability of incorrect plugging, and poor plugging depth consistency, significantly reducing production efficiency. Summary of the Invention

[0006] The purpose of the utility model is to provide a plugging jig for a particle catcher during the plugging operation, so as to improve the plugging efficiency, reduce the probability of wrong plugging, improve the consistency of the plugging depth, and thus improve production efficiency.

[0007] In order to achieve the above purpose, the present invention adopts the following scheme:

[0008] A hole plugging jig for preparing a particle trap, comprising a support plate for placing a filter element of the particle trap, and a backing plate;

[0009] The support plate is provided with a supporting surface for contacting the end surface of the filter element, and the supporting surface is perpendicular to the filter channel in the filter element;

[0010] The backing plate is provided with a blocking surface for contacting the end face of the filter element, and the blocking surface is provided with a protrusion. The protrusion is embedded in the end of the filter channel to block the filter channel. A filling area is provided between adjacent protrusions, and each filling area is covered with a filter channel to be blocked. The filling area is provided with an opening for connecting the filter channel.

[0011] Among them, the filter element refers to a component located inside the particle collector for directly intercepting and filtering particulate matter in the exhaust gas, and is commonly a ceramic filter element. The plugging jig used for the preparation of the particle collector utilizes the protrusions provided on the sealing surface of the pad to seal the filter channel. The protrusions are embedded in the end of the filter channel, which can effectively prevent the pad from slipping when filling the mud material, thereby ensuring the quality and sealing of the plugging. Each filling area only covers one filter channel to be plugged, and an opening for connecting the filter channel is provided on the filling area. The operator can perform operations such as filling mud through the opening, which optimizes the plugging process and improves the operability and efficiency of the plugging. It also helps to ensure the uniform distribution and filling effect of the plugging mud in the filter channel.

[0012] Preferably, vertical plates are provided on the sides of the pad, and the vertical plates are arranged along the edges of the pad, forming a placement cavity for accommodating mud materials on the top of the pad.

[0013] Preferably, a limiting step is provided on the supporting surface of the support plate.

[0014] Preferably, the sealing surface of the pad is provided with a first direction and a second direction perpendicular to each other, and multiple protrusions are arranged in a linear array along the first direction to form a sealing unit. Multiple sealing units are arranged along the second direction, and the protrusions in adjacent sealing units are staggered.

[0015] Preferably, the backing plate is a rubber plate, and the hardness of the rubber plate is 20A-40A.

[0016] Preferably, the resilience of the rubber sheet is 60%-70%.

[0017] Preferably, the height of the protrusion protruding from the sealing surface is 8mm-10mm.

[0018] The utility model provides a plugging jig for preparing a particle catcher, which has the following substantial features and progress compared with the prior art: the plugging jig for preparing a particle catcher is provided with a support plate and a pad structure, and uses the supporting surface on the support plate to place the filter element vertically, and uses the protrusions provided on the sealing surface of the pad to be embedded into the end of the filter channel, thereby optimizing the plugging operation steps, reducing the dependence on the plugging equipment, and effectively improving the plugging efficiency. Each filling area only covers one filter channel to be plugged, which can effectively avoid mistakenly plugging other positions that do not need to be plugged during the plugging process, greatly reducing the possibility of wrong plugging and improving the accuracy of plugging. The structural design of the jig ensures that during the plugging operation, the plugging conditions are relatively consistent each time through the settings of the protrusions and the filling area, which is beneficial to better ensure that the depth of the filter channel to be plugged by the plugging mud material can reach a relatively uniform standard during the operation, thereby improving the plugging efficiency, reducing the probability of wrong plugging, and improving the consistency of the plugging depth, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a reference diagram of the usage status of a pore blocking jig and a filter element for preparing a particle trap in an embodiment of the present utility model.

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of a backing plate of a hole plugging fixture used in the preparation of a particle collector.

[0021] Figure 3 It is a structural schematic diagram of a filter element in an embodiment of the present invention that has undergone a pore plugging operation using a pore plugging jig for preparing a particle trap.

[0022] Figure 4 yes Figure 3 Schematic diagram of the end face structure of the filter element.

[0023] Figure numerals: 1. filter element; 2. support plate; 3. pad; 4. supporting surface; 5. filter channel; 6. sealing surface; 7. protrusion; 8. filling area; 9. opening; 10. vertical plate; 11. placement cavity; 12. limiting step; 13. sealing mud material. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0025] like Figures 1-4 As shown, in an embodiment of the present invention, a plugging jig for preparing a particle catcher is proposed, which aims to improve the plugging efficiency, reduce the probability of wrong plugging, and improve the consistency of the plugging depth during the plugging operation of the particle catcher, thereby improving production efficiency.

[0026] The utility model proposes a hole-plugging jig for preparing a particle trap by providing a support plate and a pad structure. The support surface on the support plate is used to place the filter element vertically, and the protrusion provided on the sealing surface of the pad is embedded into the end of the filter channel. This optimizes the hole-plugging operation steps, reduces the dependence on the hole-plugging equipment, and effectively improves the efficiency of the hole-plugging. At the same time, each filling area only covers one filter channel to be plugged, and an opening for connecting the filter channel is provided on the filling area. The operator can perform operations such as filling mud through the opening, which optimizes the hole-plugging process, improves the operability and efficiency of the hole-plugging, and also helps to ensure the uniform distribution and filling effect of the plugging mud in the filter channel.

[0027] like Figure 1 As shown, a pore plugging jig for preparing a particle trap includes a support plate 2 for placing a filter element 1 of the particle trap, and a backing plate 3. Support plate 2 is provided with a supporting surface 4 for contacting the end face of filter element 1. Support surface 4 is perpendicular to filter channel 5 in filter element 1.

[0028] like Figure 1 Combine Figure 2 As shown, the backing plate 3 is provided with a blocking surface 6 for contacting the end face of the filter element 1. A bump 7 is provided on the blocking surface 6. The bump 7 is embedded in the end of the filter channel 5 to block the filter channel 5. For example, the height of the bump 7 protruding from the blocking surface 6 is 8mm-10mm. A packing area 8 is provided between adjacent bumps 7. Each packing area 8 is covered with a filter channel 5 to be blocked. The packing area 8 is provided with an opening 9 for connecting the filter channel 5.

[0029] Filter element 1 is a component located within the particle trap that directly intercepts and filters particulate matter from the exhaust gas. It is typically a ceramic filter element 1. For example, filter element 1 may be a recrystallized silicon carbide ceramic filter element 1, which exhibits excellent high-temperature performance, mechanical strength, and strong chemical resistance. Filter element 1 typically has a honeycomb structure with multiple parallel filter channels 5 extending axially along the filter element 1, providing a flow path for the exhaust gas.

[0030] This hole-plugging jig for preparing a particle trap utilizes bumps 7 provided on the sealing surface 6 of the backing plate 3 to plug the filter channel 5. The bumps 7 are embedded in the ends of the filter channel 5, effectively preventing the backing plate 3 from slipping when filling the filter material, thereby ensuring the quality and sealing of the plugging. Each filling area 8 only covers one filter channel 5 to be plugged, and an opening 9 for connecting the filter channel 5 is provided in the filling area 8. The operator can perform operations such as filling the filter material through the opening 9, which optimizes the plugging process, improves the operability and efficiency of the plugging, and also helps to ensure the uniform distribution and filling effect of the plugging material in the filter channel 5.

[0031] like Figure 1 As shown, vertical plates 10 are provided on the sides of the base plate 3. The vertical plates 10 are arranged along the edges of the base plate 3, and a placement cavity 11 for accommodating clay is formed on the top of the base plate 3. In this way, the placement cavity 11 formed by the vertical plates 10 provides a dedicated storage space for clay, and the operator can roughly judge the amount of clay to be used based on the volume of the placement cavity 11.

[0032] The placement of the cavity 11 facilitates more precise control of the amount of clay used. In plugging operations, the appropriate amount of clay is crucial to ensuring the quality of the plugging. It prevents overflow due to excessive clay, while also preventing incomplete plugging due to insufficient clay. This helps improve the success rate and quality of plugging.

[0033] like Figure 1 As shown, a limiting step 12 is provided on the supporting surface 4 of the support plate 2. The limiting step 12 provides a clear positioning reference for the placement of the filter element 1 of the particle collector on the support plate 2. The filter element 1 can accurately cooperate with the limiting step 12, thereby ensuring its position accuracy on the support plate 2. Moreover, during the plugging operation, the limiting effect of the limiting step 12 on the filter element 1 makes the entire operation process more stable. Even when subjected to a certain external force (such as slight shaking caused by the operator when filling mud or adjusting the jig), the filter element 1 can be firmly in the correct position. This is conducive to reducing the plugging deviation that may be caused by the shaking of the filter element 1, and improving the plugging quality.

[0034] like Figure 2 As shown, the sealing surface 6 of the backing plate 3 is provided with a first direction and a second direction perpendicular to each other. Figure 2 In the figure, the direction indicated by the arrow pointing to the right is the first direction, and the direction indicated by the arrow pointing downward is the second direction. Multiple protrusions 7 are arranged in a linear array along the first direction to form a blocking unit. Multiple blocking units are arranged along the second direction, and the protrusions 7 in adjacent blocking units are staggered.

[0035] The linear array and staggered design of the bumps 7 enhance the regularity and recognizability of the blocking of the filter channels 5. This regular pattern allows operators to more easily ensure that each bump 7 precisely engages the corresponding filter channel 5 during the blocking operation, reducing the possibility of incorrect blocking due to visual errors or operator errors. This regular arrangement also facilitates quality inspection and control during the production process, enabling the timely detection of any abnormal blocking conditions.

[0036] According to some preferred embodiments of the present invention, backing plate 3 is a rubber sheet with a hardness of 20A-40A. This configuration allows the rubber sheet, with a hardness of 20A-40A, to better conform to the surface of the particle trap's filter element 1. When the protrusion 7 is inserted into the filter channel 5 to seal it, the elasticity of the rubber sheet effectively fills any slight gaps between the protrusion 7 and the filter element 1, creating a tighter seal.

[0037] For example, the rebound rate of rubber sheet is 60%-70%. The rebound rate refers to the percentage of the rubber material's ability to return to its original shape after being compressed and deformed to a certain extent.

[0038] When a hole plugging jig for preparing a particle trap proposed in the embodiment of the present invention is used, Figure 3 Combine Figure 4 As shown, the operator uses the protrusion 7 to first block the filter channel 5 that does not need to be filled with mud at the end of the filter element 1, then weighs a certain amount of mud and places it in the placement cavity 11, and finally presses the mud into the filter channel 5 of the filter element 1, as shown in FIG. Figure 3 As shown, the blocking mud 13 blocks the holes of the filter element 1 at the end of the filter channel 5, thereby improving the blocking efficiency, reducing the probability of wrong blocking, and improving the consistency of the blocking depth, thereby improving production efficiency.

[0039] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation methods. For those skilled in the art, any technical solution formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hole plugging jig for preparing a particle trap, characterized in that: It comprises a support plate (2) for placing a filter element (1) of a particle trap, and a backing plate (3); The support plate (2) is provided with a supporting surface (4) for contacting the end surface of the filter element (1), and the supporting surface (4) is perpendicular to the filter channel (5) in the filter element (1); The backing plate (3) is provided with a blocking surface (6) for contacting the end surface of the filter element (1), and a protrusion (7) is provided on the blocking surface (6). The protrusion (7) is embedded in the end of the filter channel (5) to form a block for the filter channel (5). A filling area (8) is provided between adjacent protrusions (7), and each filling area (8) is covered with a filter channel (5) to be blocked. The filling area (8) is provided with an opening (9) for communicating with the filter channel (5).

2. The hole plugging jig for preparing a particle trap according to claim 1, characterized in that: A vertical plate (10) is provided on the side of the pad (3), and the vertical plate (10) is arranged along the edge of the pad (3), and a placement cavity (11) for accommodating mud is formed on the top of the pad (3).

3. The hole plugging jig for preparing a particle trap according to claim 1, characterized in that: A limiting step (12) is provided on the supporting surface (4) of the support plate (2).

4. The hole plugging jig for preparing a particle trap according to claim 1, characterized in that: A first direction and a second direction perpendicular to each other are provided on the sealing surface (6) of the pad (3); a plurality of protrusions (7) are arranged in a linear array along the first direction to form a sealing unit; a plurality of sealing units are arranged along the second direction; the protrusions (7) in adjacent sealing units are staggered.

5. The hole plugging jig for preparing a particle trap according to claim 1, characterized in that: The pad (3) is a rubber plate, and the hardness of the rubber plate is 20A-40A.

6. The hole plugging jig for preparing a particle trap according to claim 5, characterized in that: The resilience of the rubber sheet is 60%-70%.

7. The hole plugging jig for preparing a particle trap according to claim 1, characterized in that: The height of the protrusion (7) protruding from the sealing surface (6) is 8 mm to 10 mm.

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