Single green body smoke leakage detection device for silicon carbide honeycomb ceramic carrier

Abstract

The utility model provides a smoke leakage detection device for a single green body of a silicon carbide honeycomb ceramic carrier, which can detect the smoke leakage condition of the single green body in advance, greatly reduce the reject ratio of finished products during detection and simultaneously reduce the reworking difficulty of subsequent procedures. An exhaust fume collecting hood is arranged at the upper end of the water mist generator; the green body clamping mechanism comprises a green body supporting plate, the green body supporting plate is arranged at the upper end of the exhaust fume collecting hood and provided with a plurality of fog penetrating areas corresponding to green bodies, the green bodies are arranged on the fog penetrating areas, the green body supporting plate is provided with a plurality of green body clamping air bags, and the green body clamping air bags clamp the green bodies to seal the peripheries of the green bodies. Water mist generated by the water mist generating mechanism can only pass through the mist penetrating area to penetrate through the green body from the lower end of the green body from bottom to top. The laser emitting mechanism comprises a laser generator, laser emitted by the laser generator can penetrate through water mist flowing through the green body, and the laser emitting mechanism is used for judging the smoke leakage condition of the green body according to the color depth of the laser.

Description

Technical Field

[0001] The utility model relates to the technical field of production and application of honeycomb ceramic carriers, in particular to a single green body smoke leakage detection device for silicon carbide honeycomb ceramic carriers. Background Art

[0002] Silicon carbide honeycomb ceramic substrates are porous ceramic materials with high specific surface area and porosity, making them suitable for carrying various catalysts, adsorbents, and other active substances. Honeycomb ceramic substrates are widely used in automotive exhaust purification, industrial waste gas treatment, and catalyst supports. To ensure that the filtration and adsorption performance of silicon carbide substrates meet the requirements of China VI emission standards, finished silicon carbide substrates are currently subject to smoke leakage testing. If smoke leakage is detected, the finished silicon carbide substrate must be reworked or even scrapped.

[0003] However, due to the limitations of material properties, silicon carbide honeycomb ceramic carriers are currently difficult to directly process into the configuration and size required by the engine after-treatment system, and need to be spliced ​​later. For example, the Chinese utility model with announcement number CN220635097U discloses an auxiliary splicing device for silicon carbide honeycomb ceramic carriers. The current conventional carrier is spliced ​​from 16 blanks. If the finished silicon carbide honeycomb ceramic carrier is directly inspected, once multiple blanks leak smoke or a single blank leaks smoke in multiple places, it will cause difficulties in rework, increase the scrap rate, and significantly increase production costs. Utility Model Content

[0004] In response to the above problems, the utility model provides a single green body smoke leakage detection device for silicon carbide honeycomb ceramic carriers, which can detect smoke leakage of single green bodies in advance, greatly reducing the failure rate during finished product inspection, and also reducing the difficulty of rework in subsequent processes.

[0005] The technical solution is as follows: a single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier, characterized by comprising:

[0006] A water mist generating mechanism, the water mist generating mechanism comprising a water mist generator, the upper end of the water mist generator being provided with a smoke collecting hood;

[0007] A blank clamping mechanism, the blank clamping mechanism comprising a blank support plate, the blank support plate being arranged at the upper end of the smoke hood, the blank support plate being provided with a plurality of mist-penetrating areas corresponding to the blank, the blank being placed on the mist-penetrating areas, the blank support plate being provided with a plurality of blank clamping airbags, the blank clamping airbags being able to clamp the blank and seal the blank on all sides, and the water mist generated by the water mist generating mechanism being able to pass through the blank from the lower end of the blank from bottom to top only through the mist-penetrating areas;

[0008] The laser emitting mechanism includes a laser generator. The laser emitted by the laser generator can pass through the water mist flowing through the blank, and is used to judge the smoke leakage of the blank according to the color depth of the laser.

[0009] Furthermore, the blank support plate is installed on the detection table, and an installation groove support frame is provided on the blank support plate. The installation groove support frame surrounds the outside of the fog-permeable area, and an airbag installation groove is provided at the upper end of the installation groove support frame. The blank clamping airbag is installed in the airbag installation groove.

[0010] Furthermore, the airbag mounting groove includes a supporting base plate, and the upper end of the supporting base plate is provided with a matching airbag mounting upper plate and an airbag mounting lower plate. The supporting base plate and the airbag mounting upper plate and the airbag mounting lower plate are fixed together by bolts. The airbag mounting upper plate and the airbag mounting lower plate have airbag positioning cavities corresponding to the blank clamping airbag, and the airbag mounting upper plate and the airbag mounting lower plate are also provided with airbag pipeline avoidance grooves.

[0011] Furthermore, the blank clamping mechanism further includes a protective cover, and a window area is correspondingly provided on the protective cover.

[0012] Furthermore, the protective cover includes an outer frame and an inner frame, the outer frame is provided with a plurality of height adjustment holes, the inner frame is provided with fixing holes, and the outer frame and the inner frame are fixed together by bolts and nuts in conjunction with the height adjustment holes and the fixing holes.

[0013] Furthermore, the mounting slot support frame includes a support frame outer frame and a support frame inner frame, the protective cover outer frame is provided with a plurality of height adjustment holes, the support frame inner frame is provided with fixing holes, and the support frame outer frame and the support frame inner frame are fixed together by bolts and nuts in conjunction with the height adjustment holes and the fixing holes.

[0014] Furthermore, the laser emitting mechanism also includes a mounting bracket, and the laser generator is mounted on the mounting bracket.

[0015] Furthermore, the mounting bracket includes an adjustable base, the adjustable base is provided with a long hole, the adjustable base is fixed to the detection table by bolts, the mounting bracket is provided with a vertical adjustment slot, and also includes a second bracket, the second bracket is provided with an adjustment slot, the second bracket is fixed together with the mounting bracket by bolts and nuts and the vertical adjustment slot and the adjustment slot, and the laser generator is installed on the second bracket.

[0016] Furthermore, the blank clamping airbag is connected to a pneumatic device through an airbag pipeline, and the pneumatic device includes an air source and a reversing valve.

[0017] Furthermore, the detection table is installed on a stand, and the stand is also provided with a light shield.

[0018] The utility model has the following advantages:

[0019] The utility model discloses a single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier. The device performs smoke leakage detection at the single green body stage, replacing the detection of finished silicon carbide honeycomb ceramic carriers. This avoids the situation where smoke leakage problems are discovered only after subsequent assembly is completed. Single green bodies with smoke leakage problems can be screened out at an early stage, thereby reducing the overall product scrap rate, significantly reducing the cost losses caused by batch scrapping, reducing production costs and rework costs, and improving the economic benefits of the enterprise.

[0020] The single-piece smoke leakage detection device for a silicon carbide honeycomb ceramic carrier provided by the utility model is simple and intuitive to use. Water mist is generated by a water mist generating mechanism, and the body is clamped by a body clamping mechanism so that the water mist only passes through the single body from the inside of the body, thereby ensuring the reliability of the detection. The detection only requires observing the color change of the laser emitted by the laser emitting mechanism passing through the water mist to determine whether there is a smoke leakage phenomenon. The detection work can be completed without the need for professional and complex testing equipment and technicians, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of a single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier in an embodiment;

[0022] Figure 2 This is a front view of a single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier in an embodiment;

[0023] Figure 3 A top view of a single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier in an embodiment;

[0024] Figure 4 A three-dimensional diagram of a blank clamping mechanism in an embodiment viewed from a top down perspective;

[0025] Figure 5 A perspective view of a blank clamping mechanism in an embodiment viewed from a second perspective from bottom to top;

[0026] Figure 6 This is a schematic diagram of a separation airbag of a blank clamping mechanism after being installed on a plate in an embodiment;

[0027] Figure 7 A perspective view of another single-piece smoke leakage detection device of a silicon carbide honeycomb ceramic carrier with a protective cover in an embodiment;

[0028] Figure 8 is a three-dimensional diagram of the laser emitting mechanism in the embodiment;

[0029] Figure 9 It is a three-dimensional diagram of another single-piece smoke leakage detection device of a silicon carbide honeycomb ceramic carrier with a light shield in the embodiment. DETAILED DESCRIPTION

[0030] As described in the background, smoke leakage is a common problem encountered during the production of silicon carbide honeycomb ceramic substrates. Traditionally, detection is performed throughout the finished substrate stage. This is not only inefficient, but once a defect is discovered, it often requires extensive rework or scrapping, significantly increasing production costs. In light of these shortcomings, this application proposes a single-body smoke leakage detection device for silicon carbide honeycomb ceramic substrates, enabling smoke leakage detection at the single-body stage.

[0031] See Figures 1 to 6 In the embodiment, the single green body smoke leakage detection device of the silicon carbide honeycomb ceramic carrier includes:

[0032] The water mist generating mechanism 100 includes a water mist generator 101 , and a smoke collecting hood 102 is provided at the upper end of the water mist generator 101 ;

[0033] The blank clamping mechanism 200 includes a blank support plate 201, which is arranged at the upper end of the smoke hood 102. The blank support plate 201 is provided with a plurality of mist-penetrating areas 202 corresponding to the blank, and the blank 1 is placed on the mist-penetrating areas 202. In the embodiment, the mist-penetrating areas are made of a mesh plate. In other embodiments, a perforated plate, a filter screen, a screen, etc. can be used. A plurality of blank clamping airbags 203 are provided on the blank support plate 201. The blank clamping airbags 203 can be square or annular, as long as they can surround the blank 1. The blank clamping airbags 203 clamp the blank 1 to close the four sides of the blank 1. The water mist generated by the water mist generating mechanism 100 can only pass through the mist-penetrating areas 202 and pass through the blank 1 from the lower end of the blank 1 from bottom to top;

[0034] The laser emitting mechanism 300 includes a laser generator 301. The laser emitted by the laser generator 301 can pass through the water mist flowing through the blank 1 and is used to judge the smoke leakage of the blank 1 according to the depth of the laser color.

[0035] Water mist is a suspension of numerous tiny water droplets. These particles strongly scatter light. When light passes through the mist, it scatters, spreading it in all directions. Different wavelengths of light scatter differently in the mist, with shorter wavelengths being more strongly scattered and longer wavelengths being less so. Because lasers are highly directional and bright, when a laser beam passes through water mist, its narrow beam and concentrated energy allow the scattered light to maintain a certain brightness and directionality. This creates a relatively bright and visible optical path within the mist. Excessive smoke leakage in blanks will result in more mist passing through them. Therefore, the intensity of the laser light can be used to determine the extent of the leakage: darker colors indicate smoke leakage, while lighter colors indicate no leakage.

[0036] The single-piece smoke leakage detection device for the silicon carbide honeycomb ceramic carrier in the embodiment effectively improves product quality and reduces production costs by introducing an earlier detection point in the production process; through the combination of the laser emission mechanism and the water mist generation mechanism, it provides operators with an intuitive and simple way to observe and judge the smoke leakage of the body. This design improves detection efficiency and reduces dependence on the operator's professional skills, realizing a batch of single-piece smoke leakage detection devices. Potential smoke leakage problems can be accurately identified in the early stages of honeycomb ceramic carrier production, which helps to promptly eliminate defective products and prevent them from entering the subsequent production process, thereby improving the quality of the final product. By performing smoke leakage detection in the early stages of production, the additional costs caused by rework and scrap can be greatly reduced.

[0037] In one embodiment of the present invention, a blank support plate 201 is installed on a detection table 204, and a mounting groove support frame 205 is provided on the blank support plate 201. The mounting groove support frame 205 surrounds the outer side of the fog-permeable area 202, and an airbag mounting groove 206 is provided on the upper end of the mounting groove support frame 205. The blank clamping airbag 203 is installed in the airbag mounting groove 206. The mounting groove support frame 205 and the airbag mounting groove 206 are sealed on all sides and at the upper end of the fog-permeable area, which can further prevent fog leakage, so that the fog will not leak from areas outside the fog-permeable area 202. The blank clamping airbag 203 is inflated, clamped and sealed around the blank, so that the fog flows on the inner wall of the blank.

[0038] In the embodiment, the airbag mounting groove includes a supporting base plate 206C, and the upper end of the supporting base plate 206C is provided with a matching airbag mounting upper plate 206A and an airbag mounting lower plate 206B. The supporting base plate 206C, the airbag mounting upper plate 206A and the airbag mounting lower plate 206C are fixed together by bolts. The airbag mounting upper plate 206A and the airbag mounting lower plate 206B have an airbag positioning cavity 207 corresponding to the blank clamping airbag. The airbag mounting upper plate 206A and the airbag mounting lower plate 206B are also provided with an airbag pipeline avoidance groove 208. The setting of the airbag mounting groove can also prevent the airbag from aging and cracking and injuring people.

[0039] See Figure 7 In one embodiment, the blank clamping mechanism further includes a protective cover 209, and a corresponding window area is provided on the protective cover 209 to expose the blank clamping airbag and the blank. The setting of the protective cover 209 protects the operator from possible airbag rupture and the equipment itself from damage by adding a protective cover around the blank clamping mechanism, thereby improving the safety and stability of the entire device.

[0040] In one embodiment, the protective cover includes a protective cover outer frame 209A and a protective cover inner frame 209B. The protective cover outer frame 209A is provided with several height adjustment holes 209C, and the protective cover inner frame 209B is provided with fixing holes. The protective cover outer frame and the protective cover inner frame are fixed together by bolts, nuts, height adjustment holes and fixing holes. The setting of the protective cover outer frame 209A and the protective cover inner frame 209B can flexibly adjust the height of the protective cover to meet the protection requirements of different models and heights of blanks.

[0041] In one embodiment, the mounting slot support frame 205 includes a support frame outer frame 205A and a support frame inner frame 205B. The protective cover outer frame 205A is provided with several height adjustment holes 205C, and the support frame inner frame is provided with fixing holes. The support frame outer frame and the support frame inner frame are fixed together by bolts, nuts, height adjustment holes and fixing holes, and the detection height can be flexibly adjusted to meet the detection requirements of different models and heights of blanks.

[0042] See Figure 8In one embodiment, the laser emitting mechanism 300 further includes a mounting bracket 302, which includes an adjustable base 303, which is provided with a long hole 304, and is fixed to the detection table 204 by bolts. The mounting bracket 302 is provided with a vertical adjustment slot 305, and further includes a second bracket 306, which is provided with an adjustment slot 307. The second bracket 306 is fixed to the mounting bracket 302 by bolts and nuts in conjunction with the vertical adjustment slot 305 and the adjustment slot 307. The laser generator 101 is installed on the second bracket 306. Through the setting of the mounting bracket, the position and height of the laser emitter can also be adjusted accordingly, which can meet the detection requirements of blanks of different models and heights.

[0043] In the embodiment, the laser emitting mechanism 100, the mounting slot support frame 205 and the protective cover 209 all have height adjustment functions, which can adapt to the requirements of blank detection at different heights, so that the same set of equipment can be applied to multiple models of products, thereby improving the versatility and utilization of the equipment.

[0044] In one embodiment, the blank-clamping airbag is connected to a pneumatic device via an airbag pipeline 212. The pneumatic device includes an air source and a reversing valve 210. When inflation is required, the reversing valve switches to the inflation channel, connecting the air source to the blank-clamping airbag. Compressed air enters the blank-clamping airbag, causing it to expand and encircle the blank. When deflation is required, the reversing valve switches to the deflation channel, connecting the blank-clamping airbag to the atmosphere or an exhaust system, allowing the gas within the blank-clamping airbag to be discharged. In some embodiments, the deflation channel can be omitted. The air source can be cut off by controlling the reversing valve, and deflation can be achieved by utilizing the elasticity of the blank-clamping airbag itself or an external exhaust device. After deflation, the blank can be removed.

[0045] See Figure 9 In one embodiment, the detection table 204 is installed on a stand 211, and the stand 211 is further provided with a light shield 213. The setting of the light shield 213 can further facilitate the observation of water mist.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier, characterized in that: include: A water mist generating mechanism, the water mist generating mechanism comprising a water mist generator, the upper end of the water mist generator being provided with a smoke collecting hood; A blank clamping mechanism, the blank clamping mechanism comprising a blank support plate, the blank support plate being arranged at the upper end of the smoke hood, the blank support plate being provided with a plurality of mist-penetrating areas corresponding to the blank, the blank being placed on the mist-penetrating areas, the blank support plate being provided with a plurality of blank clamping airbags, the blank clamping airbags being able to clamp the blank and seal the blank on all sides, and the water mist generated by the water mist generating mechanism being able to pass through the blank from the lower end of the blank from bottom to top only through the mist-penetrating areas; The laser emitting mechanism includes a laser generator. The laser emitted by the laser generator can pass through the water mist flowing through the blank, and is used to judge the smoke leakage of the blank according to the color depth of the laser.

2. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 1, characterized in that: The blank support plate is installed on the detection table, and an installation groove support frame is provided on the blank support plate. The installation groove support frame surrounds the outside of the fog-permeable area, and an airbag installation groove is provided at the upper end of the installation groove support frame. The blank clamping airbag is installed in the airbag installation groove.

3. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 2, characterized in that: The airbag mounting groove includes a supporting base plate, and the upper end of the supporting base plate is provided with a matching airbag mounting upper plate and an airbag mounting lower plate. The supporting base plate and the airbag mounting upper plate and the airbag mounting lower plate are fixed together by bolts. The airbag mounting upper plate and the airbag mounting lower plate have airbag positioning cavities corresponding to the blank clamping airbag, and the airbag mounting upper plate and the airbag mounting lower plate are also provided with airbag pipeline avoidance grooves.

4. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 2, characterized in that: The blank clamping mechanism further comprises a protective cover, and a window area is correspondingly provided on the protective cover.

5. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 4, characterized in that: The protective cover includes an outer frame and an inner frame. The outer frame is provided with a plurality of height adjustment holes, and the inner frame is provided with fixing holes. The outer frame and the inner frame are fixed together by bolts and nuts in cooperation with the height adjustment holes and the fixing holes.

6. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 4, characterized in that: The mounting slot support frame includes a support frame outer frame and a support frame inner frame. The protective cover outer frame is provided with a plurality of height adjustment holes, and the support frame inner frame is provided with fixing holes. The support frame outer frame and the support frame inner frame are fixed together by bolts and nuts in cooperation with the height adjustment holes and the fixing holes.

7. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 1, characterized in that: The laser emitting mechanism further comprises a mounting bracket, and the laser generator is mounted on the mounting bracket.

8. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 7, characterized in that: The mounting bracket includes an adjustable base, which is provided with a long hole. The adjustable base is fixed to the detection table by bolts. The mounting bracket is provided with a vertical adjustment slot. The mounting bracket also includes a second bracket, which is provided with an adjustment slot. The second bracket is fixed to the mounting bracket by bolts and nuts in conjunction with the vertical adjustment slot and the adjustment slot. The laser generator is installed on the second bracket.

9. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic substrate according to claim 1, characterized in that: The blank clamping airbag is connected to a pneumatic device through an airbag pipeline, and the pneumatic device includes an air source and a reversing valve.

10. The single green body smoke leakage detection device for a silicon carbide honeycomb ceramic carrier according to claim 2, characterized in that: The detection table is installed on a stand, and the stand is also provided with a light shield.

Images