A high-resilience wave-tooth composite gasket production device and process

By designing a high-resilience corrugated composite gasket production device, automated chip removal is achieved using lifting drive components and scraper assemblies, solving the problems of downtime cleaning and chip splashing in existing technologies, and improving production efficiency and safety.

CN122210470APending Publication Date: 2026-06-16LUOYANG BAIGONG IND SEAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LUOYANG BAIGONG IND SEAL CO LTD
Filing Date
2026-05-20
Publication Date
2026-06-16

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Abstract

The present application relates to the technical field of turning equipment, and particularly relates to a high-rebound wave tooth composite gasket production device and process, which comprises a machine body and a turning assembly, and a cutter is externally provided with a cleaning protection assembly. The cleaning protection assembly comprises an outer sleeve and an inner sleeve which are concentrically arranged, and the inner sleeve is slidably arranged. A plurality of scrapers are rotatably arranged at the bottom of the inner sleeve, and an elastic reset member and a gear are arranged on the scraper. When the inner sleeve moves upward, the gear drives the scraper to deflect inward and be attached to the cutter, clamps the wound scraps and moves upward, so that the scraps are stripped from the machining position. When the inner sleeve moves downward to the bottom end, the scraper resets and outwardly presents a horn-shaped arch to guard around the cutter. The device can realize continuous cleaning without stopping the machine, removes the scraps before accumulation, effectively detects the tool release phenomenon caused by lag, and guarantees the machining precision of the gasket. Meanwhile, the horn-shaped profile formed by the scraper cooperates with the outer sleeve to form a physical protection cover, effectively intercepts the splashing of the scraps, and improves the workshop working environment.
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Description

Technical Field

[0001] This invention relates to the field of turning equipment technology, and in particular to a high-resilience corrugated composite gasket production device and process. Background Technology

[0002] Corrugated composite gaskets are high-performance sealing elements widely used in harsh operating conditions. Their main structure typically consists of a metal skeleton and a flexible graphite composite layer covering its surface. The upper and lower surfaces of the metal skeleton are machined with concentric circular "corrugated" grooves. Under flange preload, the corrugated tooth peaks generate extremely high linear sealing pressure, giving the gasket excellent compression resilience and effectively compensating for minor deformations and vibrations of the flange surface.

[0003] In the prior art, Chinese patent application number CN117047477A discloses a corrugated composite gasket production device and process. The corrugated composite gasket production device detects an increase in the cutting resistance of the cutting tool, causing the cutting tool to move upward. This triggers the controller to control the lifting drive to drive the cutting tool upward, so that the cutting tool no longer contacts the corrugated composite gasket. After the machine stops, the metal wrapping on the cutting tool is manually cleaned, thereby extending the service life of the cutting tool.

[0004] However, the aforementioned corrugated composite gasket production equipment requires production to be interrupted and the machine to be stopped during use, and relies on manual cleaning, lacking an effective automated real-time chip removal mechanism; in addition, the equipment relies on chip accumulation detection, which has "detection and response lag". When the system or manual detects the abnormality, the tool deflection phenomenon has often already occurred; furthermore, cutting chips will inevitably be generated during the turning process.

[0005] Based on the above-mentioned technical problems, the present invention proposes a production device for high-resilience corrugated composite gaskets. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-resilience corrugated composite gasket production device to solve the above-mentioned technical problems.

[0007] The present invention is achieved through the following technical solution: a high-resilience corrugated composite gasket production device, including a machine body, a cutting fluid return tank and a cutting fluid circulation device provided on the machine body, and also including a support component, a gasket drive component and a turning component, wherein the turning component is installed on the machine body through a feeding device, and the turning component includes a cutting tool and a cleaning and protection component provided outside the cutting tool.

[0008] The cleaning and protection assembly includes an outer protective cylinder and an inner cylinder arranged concentrically with the cutter. The inner cylinder is slidably installed between the outer protective cylinder and the cutter. A lifting drive is connected above the inner cylinder to control the reciprocating movement of the inner cylinder relative to the cutter. Multiple scrapers are rotatably mounted at the bottom of the inner cylinder. The scrapers are evenly distributed around the circumference of the inner cylinder. An elastic reset element is installed between the scraper and the inner cylinder. A gear is provided between the scraper and the inner wall of the outer casing. When the inner cylinder moves upward, the gear drives the scraper to overcome the force of the elastic reset element and deflect inward synchronously. The scraper then adheres to the surface of the tool, clamps the debris, and moves upward. When the inner cylinder moves downward to the bottom, the scraper deflects outward and resets under the action of the elastic reset element, so that the outer contour of the scraper forms a trumpet shape and surrounds the tool.

[0009] Furthermore, the support assembly includes a bracket and a plurality of support wheels rotatably mounted on the bracket and the machine body. The support wheels are horizontally mounted and their planar angles are adjustable. The axis of the support wheel points to the center of the shim. The support wheels on the machine body are mounted on both sides of the turning assembly.

[0010] Furthermore, the shim drive assembly is symmetrically arranged in two sets on the machine body relative to the turning assembly. Each set of shim drive assemblies includes a drive wheel located on the inner side of the shim and a driven wheel located on the outer side of the shim on the machine body. The drive wheel is rotatably mounted on the machine body, the shaft is connected to an external drive, and the drive wheels on both sides rotate synchronously; The driven wheel's rotation shaft is slidably mounted on the machine body, making the distance between the driven wheel and the drive wheel adjustable.

[0011] Furthermore, the turning assembly includes a tool holder box fixedly connected to the feed device, and a tool holder fixedly connected to the tool holder box, on which a cutting tool is fixedly mounted; The side wall of the tool holder box is provided with an adjustment groove that extends longitudinally and passes through the tool holder box. A bolt is slidably installed in the adjustment groove. The outer sleeve is installed inside the tool holder box and is concentrically fitted on the outside of the tool. An internally recessed threaded hole for fixing is also provided on the side wall of the outer sleeve corresponding to the adjustment groove.

[0012] Furthermore, the bottom of the inner cylinder is threadedly connected to an annular cleaning head. The bottom circumference of the cleaning head is evenly provided with multiple mounting grooves. The scraper is rotatably mounted in the mounting groove via a mounting shaft. The top wall and bottom wall of the mounting groove are set at a fixed angle to limit the rotation range of the scraper.

[0013] Furthermore, the elastic reset member drives the scraper to deflect outward and abut against the bottom wall of the mounting groove.

[0014] Furthermore, the guide transmission structure includes a gear fixedly connected to the end of the mounting shaft and an annular rubber sleeve disposed on the inner wall of the outer casing. The gear abuts against the rubber sleeve and is in an interference fit with the rubber sleeve.

[0015] Furthermore, the rubber sleeve covers the stroke area of ​​the scraper moving upward, and the height of the rubber sleeve is greater than the driving length required for the scraper to deflect to fit the surface of the tool. When the inner cylinder moves downward to the bottom, the gear and the rubber sleeve disengage.

[0016] Furthermore, the scraper is made of an elastic sheet capable of elastic deformation, and a cleaning block made of rubber is fixed on the inner side of the scraper facing the blade, with the cleaning block protruding from the bottom end of the scraper.

[0017] Furthermore, the present invention also discloses a manufacturing process for a high-resilience corrugated composite gasket, comprising the following steps: Step 1: Skeleton preparation. Select a solid stainless steel substrate of 304 or 316 with appropriate thickness as needed. Use the high-resilience corrugated composite gasket production device to machine continuous concentric circular grooves on the substrate and control the groove depth. Step 2: Apply adhesive layer. Degrease the gasket skeleton behind the groove, then apply high-temperature resistant adhesive to its surface and let it stand until semi-dry. Step 3: Select graphite layer and match composite thickness. Select a flexible graphite strip with a density of 1.0 g / cm³, and set the single-sided thickness of the graphite layer required for the composite according to the groove depth. Step 4: Curing and pressing. The flexible graphite is aligned and attached to the surface of the skeleton and placed in a constant pressure press. Protective hot pressing and bonding are performed at a temperature of 150°C and a pressure not exceeding 15MPa.

[0018] The beneficial effects of this invention are as follows: The high-resilience corrugated composite gasket production device of this invention includes a machine body, on which a cutting fluid return tank and a cutting fluid circulation device are provided. It also includes a support assembly, a gasket drive assembly, and a turning assembly. The turning assembly is mounted on the machine body via a feeding device and includes a cutting tool and a cleaning and protection assembly located outside the cutting tool. Addressing the "detection and response lag" defect of existing equipment, this invention eliminates the need for production interruption by using a lifting drive component to move the inner cylinder upwards. The gear drives the scraper to overcome elastic force and synchronously deflect inwards, precisely adhering to the cutting tool surface. The scraper "clamps" the entangled chips upwards, peeling them away from the machining area, thus actively preventing chip removal before the chips are compressed, thereby avoiding tool deflection. When the inner cylinder moves downwards to the bottom of the machining area, the scraper automatically deflects outwards and resets, its outer contour forming a "trumpet shape" around the cutting tool. This, combined with the outer protective cylinder, forms a physical protective shield, intercepting metal chips generated during turning and effectively preventing chip splashing and pollution of the workshop environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device; Figure 2This is a schematic diagram of the cross-sectional structure of the turning assembly; Figure 3 A schematic diagram of the protective component structure is provided for cleaning. Figure 4 A schematic diagram of the cross-sectional structure of the cleaning protective components; Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 6 for Figure 4 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the scraper structure.

[0020] In the diagram: 1. Machine body; 11. Return tank; 12. Gasket; 2. Tool holder box; 21. Tool holder; 22. Tool; 3. Bracket; 31. Support wheel; 32. Drive wheel; 33. Driven wheel; 4. Inner cylinder; 41. Outer sleeve; 42. Rubber sleeve; 43. Bolt; 44. Adjustment groove; 5. Scraper; 51. Mounting shaft; 52. Cleaning block; 6. Cleaning head; 61. Mounting groove; 62. Gear. Detailed Implementation

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 like Figure 1-7 As shown, this invention discloses a high-resilience corrugated composite gasket production apparatus, including a machine body 1, a support assembly, and a turning assembly. The turning assembly is mounted on the machine body 1 via a stroke control device, which includes a transverse feed device and a longitudinal feed device. A cutting fluid return tank 11 is provided on the machine body 1 below the turning assembly. A cutting fluid circulation device is installed in the return tank 11, and the cutting fluid circulation device includes a circulation pump and a supply pipe, with the outlet of the supply pipe facing the cutting tool.

[0024] The support assembly includes a bracket 3, on which support wheels 31 for supporting the gaskets are mounted. The support wheels 31 on the body 1 are mounted on both sides of the return tank 11, and are horizontally mounted. The support wheels 31 are rotatably mounted on the body 1 or bracket 3 via a vertical pivot, allowing for adjustable planar angles. All support wheels 31 point towards the center of the gasket. Gasket drive assemblies are symmetrically mounted on both sides of the return tank 11. Each gasket drive assembly includes a drive wheel 32 located inside the gasket and a driven wheel 33 located outside the gasket. Both the drive wheel 32 and the driven wheel 33 are rotatably mounted on the body 1. Both the drive wheel 32 and the driven wheel 33 are circumferentially grooved track wheels, and flexible anti-scratch washers are installed on the inner walls of the grooves. The two drive wheels 32 on both sides of the return tank 11 rotate synchronously. The distance between the driven wheel 33 and the drive wheel 32 is adjustable. In use, the drive wheel 32 and the driven wheel 33 clamp the shim 12 to keep the shim 12 of the turning part in a horizontal state.

[0025] The turning assembly includes a tool holder 2, a tool post 21, a cutting tool 22, and a cleaning and protective assembly installed around the cutting tool 22 to prevent chip entanglement and splashing. The tool holder 2 is fixedly connected to the feed device, the tool post 21 is fixedly connected to the tool holder 2, and the cutting tool 22 is fixedly mounted on the tool post 21. The cleaning and protective assembly includes an outer protective sleeve 41 concentrically mounted with the cutting tool 22. The outer protective sleeve 41 has an internally countersunk threaded hole on its side wall, and an adjustment groove 44 is formed on the side wall of the tool holder 2. A bolt 43 is installed in the adjustment groove 44, and the outer protective sleeve 41 is fixedly connected to the tool holder 2 through the engagement of the threaded hole and the bolt 43.

[0026] An inner cylinder 4 is slidably installed between the outer casing 41 and the cutting tool 22. The inner cylinder 4 and the outer casing 41 are concentrically arranged, with a gap between them. An electric push rod is installed at the top of the inner cylinder 4 to control the reciprocating movement of the inner cylinder 4 relative to the cutting tool 22. The control end of the electric push rod is equipped with a timing control device to control the electric push rod to reciprocate at regular intervals. A cleaning head 6 is provided at the bottom of the inner cylinder 4. The cleaning head 6 is annular and is fixedly connected to the inner cylinder 4 by threads. A scraper 5 is installed at the bottom of the cleaning head 6. Multiple scraper 5s are evenly distributed along the circumference of the cleaning head 6. The outer contour of the scraper 5 can cover the entire machining area, effectively preventing machining debris from splashing outwards. There are clearance gaps between adjacent scraper 5s, and the cutting fluid outlet pipe is located between the clearance gaps, so as not to affect the lubrication and cooling effect during the machining process.

[0027] like Figure 4 , Figure 6As shown, the scraper blade 5 is rotatably connected to the cleaning head 6 via the mounting shaft 51. The scraper blade 5 is installed in the mounting groove 61 on the cleaning head 6. The angle between the top and bottom walls of the mounting groove 61 is fixed at 120 degrees, restricting the scraper blade 5 to rotate within a certain range. An elastic reset element is installed between the scraper blade 5 and the cleaning head 6. The elastic reset element can be a coil spring or an elastic sheet. Under the action of the elastic reset element, the scraper blade 5 deflects outward and abuts against the bottom wall of the mounting groove 61. The overall outline of the scraper blade 5 forms a trumpet shape.

[0028] A guide transmission structure is also provided between the scraper blade 5 and the outer protective sleeve 41. The guide transmission structure includes a gear 62 installed at the shaft center of the scraper blade 5, and the gear 62 is fixedly connected to the mounting shaft 51. The scraper blade 5 is made of elastic sheet that can deform. A cleaning block 52 is installed on the inner side of the scraper blade 5 and is fixedly connected to the scraper blade 5. The cleaning block 52 is made of rubber.

[0029] The guide transmission structure also includes a rubber sleeve 42 installed on the inner wall of the outer casing 41 to drive the gear 62 to rotate. The rubber sleeve 42 is annular, covering the distance the scraper 5 moves up and down. It is made of wear-resistant rubber and has a thickness of 2-5mm. The gear 62 always abuts against the rubber sleeve 42 and is press-fitted with it. The height of the rubber sleeve 42 is much greater than the distance the scraper 5 needs to move to deflect to fit the tool surface. When the inner casing 4 moves downward to the bottom, the gear 62 disengages from the rubber sleeve 42, the scraper 5 is reset by the elastic reset element, and the mounting shaft 51 abuts against the bottom wall of the mounting groove 61. During the reciprocating lifting and lowering of the inner casing 4 relative to the tool 22 controlled by the electric push rod, the gear 62 cooperates with the rubber sleeve 42. When the inner casing 4 moves upward, the scraper 5 moves upward and deflects inward. The scrapers 5 around the tool 22 clamp the debris wrapped around the surface of the tool 22 and move upward to clean the tool 22. Driven by the cleaning block 52, a large amount of entangled debris will be loosened and automatically fall off the tool 22, effectively preventing debris from continuously entangled and accumulating on the tool surface. When replacing the gasket, the remaining entangled debris on the tool holder can also be easily cleaned manually. When the inner cylinder 4 moves downward, the scraper 5 returns to its original position. The scraper 5 forms a trumpet-shaped profile that surrounds the tool to prevent debris from splashing.

[0030] In use, first fix the gasket 12 to the gasket drive assembly via the support assembly, then loosen the bolt 43, move the outer sleeve 41 upward to expose the internal tool holder 21, install the appropriate tool 22 on the tool holder 21, then move the outer sleeve 41 downward so that the cleaning block 52 around the tool 22 can abut against the surface of the gasket 12. During processing, tighten the bolt 43 to fix the outer sleeve 41. The lathe is then started, and the drive wheel 32 drives the shim 12 to rotate. Simultaneously, the electric push rod timing control device is activated, causing the electric push rod to periodically drive the inner cylinder in a reciprocating lifting motion. As the inner cylinder 4 moves upward, the gear 62 and the rubber sleeve 42 cooperate to move the scraper 5 upward while simultaneously deflecting it inward. When the cleaning block 52 on the inner side of the scraper 5 is in close contact with the surface of the tool 22, the mounting shaft 51 is in close contact with the top wall of the mounting groove 61. Because the height of the rubber sleeve 42 is much greater than the distance the inner cylinder needs to move to complete the deflection of the scraper, and because the diameter of the gear 62 is small, the scraper 5 can quickly contact the surface of the tool 22 as the inner cylinder 4 moves upward. As the inner cylinder 4 continues to move upward, the clamping posture of the scraper 5 remains unchanged, allowing a large amount of debris wrapped around the tool 22 to be cleared upward from the working area. After the inner cylinder 4 moves downward until the gear 62 is out of the range of the rubber sleeve 42, all the scrapers 5 are reset simultaneously under the action of the elastic reset member, so as to avoid the gear 62 slipping on the rubber sleeve 42 under the action of the cutting fluid during the lifting process, which would cause the scrapers 5 to not deflect synchronously.

[0031] Example 2 This invention also discloses a manufacturing process for a high-resilience corrugated composite gasket, comprising the following steps: Step 1: Skeleton preparation. Select a solid 304 or 316 stainless steel plate with a thickness of 3.0mm-4.0mm as the substrate. Place it on a CNC lathe or a dedicated gear turning machine, and machine continuous concentric circular tooth grooves on both the upper and lower surfaces of the substrate. Set the turning tool angle to 90°, and strictly control the depth of the machined tooth grooves to be exactly 0.4mm or 0.45mm through the feed rate, with the distance between adjacent teeth being approximately 1.0mm.

[0032] Step 2: Adhesive coating. The machined toothed skeleton is ultrasonically cleaned and degreased. Then, a very thin layer of high-temperature resistant adhesive is sprayed or rolled onto its surface, such as phenolic resin-based adhesive. The thickness of the adhesive layer is controlled at 0.01mm~0.02mm. Let it stand until it is semi-dry.

[0033] Step 3: Selecting and matching the graphite layer thickness. Based on the depth of the machined tooth groove, select a flexible graphite strip with a density of 1.0 g / cm³ and set the composite single-sided thickness of the graphite layer.

[0034] Step 4: Curing and pressing. After aligning the machined skeleton coated with adhesive with the flexible graphite, place it in a flat vulcanizing machine or constant pressure press. At a temperature of 150°C, use a low pre-tightening force of less than 15MPa for protective hot pressing and bonding.

[0035] Through multiple tests using different combinations of data parameters, the following data was obtained: 1. When conducting tests with a tooth groove depth of 0.4mm and a tooth pitch of 1mm: the skeleton material is selected as 304 solid stainless steel, the thickness of the flexible graphite is selected as 0.5mm on one side, and the composite process is selected as high temperature resistant adhesive + low pressure hot pressing. Under the stress of 40 MPa, after multiple tests, the springback rate can reach 38.5%. After being cut open and observed under a microscope, the internal turned tooth peaks remain absolutely sharp and there is no upsetting deformation.

[0036] 2. When conducting tests with a tooth groove depth of 0.45mm and a tooth pitch of 1mm: the skeleton material is selected as 304 solid stainless steel, the thickness of the flexible graphite is selected as 0.6mm on one side, and the composite process is selected as high temperature resistant adhesive + low pressure hot pressing. Under the stress of 40 MPa, after multiple tests, the springback rate can reach 36.6%. After being cut open and observed under a microscope, the internal turned tooth peaks remain absolutely sharp and there is no upsetting deformation.

[0037] 3. When conducting tests with a tooth groove depth of 0.7mm and a tooth pitch of 1mm: the skeleton material is 304 solid stainless steel, the flexible graphite thickness is 0.8mm on one side, and the composite process is high-temperature adhesive bonding + low-pressure hot pressing. Under the stress of 40 MPa, after multiple tests, the springback rate is only 32.4%. After being cut open and observed under a microscope, the internal turned tooth peaks remain absolutely sharp and there is no upsetting deformation.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-resilience corrugated composite gasket production apparatus, comprising a machine body, wherein a cutting fluid return tank and a cutting fluid circulation device are provided on the machine body, characterized in that, It also includes a support assembly, a shim drive assembly, and a turning assembly, wherein the turning assembly is mounted on the machine body via a feed device, and the turning assembly includes a cutting tool and a cleaning and protection assembly disposed outside the cutting tool; The cleaning and protection assembly includes an outer protective cylinder and an inner cylinder arranged concentrically with the cutter. The inner cylinder is slidably installed between the outer protective cylinder and the cutter. A lifting drive is connected above the inner cylinder to control the reciprocating movement of the inner cylinder relative to the cutter. Multiple scrapers are rotatably mounted at the bottom of the inner cylinder. The scrapers are evenly distributed around the circumference of the inner cylinder. An elastic reset element is installed between the scraper and the inner cylinder. A gear is provided between the scraper and the inner wall of the outer casing. When the inner cylinder moves upward, the gear drives the scraper to overcome the force of the elastic reset element and deflect inward synchronously. The scraper then adheres to the surface of the tool, clamps the debris, and moves upward. When the inner cylinder moves downward to the bottom, the scraper deflects outward and resets under the action of the elastic reset element, so that the outer contour of the scraper forms a trumpet shape and surrounds the tool.

2. The high-resilience corrugated composite gasket production apparatus according to claim 1, characterized in that, The support assembly includes a bracket and multiple support wheels rotatably mounted on the bracket and the machine body. The support wheels are horizontally positioned and their planar angle is adjustable. The axis of the support wheel points to the center of the shim. The support wheels on the machine body are located on both sides of the turning assembly.

3. The high-resilience corrugated composite gasket production apparatus according to claim 1, characterized in that, The shim drive assembly is symmetrically arranged in two sets on the machine body relative to the turning assembly. Each set of shim drive assemblies includes a drive wheel located on the inner side of the shim and a driven wheel located on the outer side of the shim on the machine body. The drive wheel is rotatably mounted on the machine body, the shaft is connected to an external drive, and the drive wheels on both sides rotate synchronously; The driven wheel's rotation shaft is slidably mounted on the machine body, making the distance between the driven wheel and the drive wheel adjustable.

4. The high-resilience corrugated composite gasket production apparatus according to claim 1, characterized in that, The turning assembly includes a tool holder box fixedly connected to the feed device, and a tool holder fixedly connected to the tool holder box, on which a cutting tool is fixedly mounted; The side wall of the tool holder box is provided with an adjustment groove that extends longitudinally and passes through the tool holder box. A bolt is slidably installed in the adjustment groove. The outer sleeve is installed inside the tool holder box and is concentrically fitted on the outside of the tool. An internally recessed threaded hole for fixing is also provided on the side wall of the outer sleeve corresponding to the adjustment groove.

5. The high-resilience corrugated composite gasket production apparatus according to claim 1, characterized in that, The bottom of the inner cylinder is threaded with a ring-shaped cleaning head. The bottom circumference of the cleaning head is evenly provided with multiple mounting grooves. The scraper is rotatably mounted in the mounting groove via a mounting shaft. The top wall and bottom wall of the mounting groove are set at a fixed angle to limit the rotation range of the scraper.

6. The high-resilience corrugated composite gasket production apparatus according to claim 5, characterized in that, The elastic reset component is fixedly connected to the mounting shaft, driving the scraper to deflect outward and abut against the bottom wall of the mounting groove.

7. The high-resilience corrugated composite gasket production apparatus according to claim 6, characterized in that, A guide transmission structure is provided between the inner cylinder and the outer protective cylinder. The guide transmission structure includes a gear fixedly connected to the end of the mounting shaft and an annular rubber sleeve fixedly installed on the inner wall of the outer protective cylinder. The gear abuts against the rubber sleeve and is in an interference fit with the rubber sleeve.

8. The high-resilience corrugated composite gasket production apparatus according to claim 7, characterized in that, The rubber sleeve covers the stroke area of ​​the scraper moving upward, and the height of the rubber sleeve is greater than the driving length required for the scraper to deflect to fit the surface of the tool. When the inner cylinder moves downward to the bottom, the gear and the rubber sleeve disengage.

9. The high-resilience corrugated composite gasket production apparatus according to claim 1, characterized in that, The scraper is made of an elastic sheet that can undergo elastic deformation. A cleaning block made of rubber is fixed on the inner side of the scraper facing the blade, and the cleaning block protrudes from the bottom of the scraper.

10. A manufacturing process for a high-resilience corrugated composite gasket, characterized in that, Includes the following steps: Step 1: Skeleton preparation. Select a solid stainless steel substrate of 304 or 316 with appropriate thickness as needed. Use the high-resilience corrugated composite gasket production device described in any one of claims 1-9 to machine continuous concentric circular grooves on the substrate and control the groove depth. Step 2: Apply adhesive layer. Degrease the gasket skeleton behind the groove, then apply high-temperature resistant adhesive to its surface and let it stand until semi-dry. Step 3: Select graphite layer and match composite thickness. Select a flexible graphite strip with a density of 1.0 g / cm³, and set the single-sided thickness of the graphite layer required for the composite according to the groove depth. Step 4: Curing and pressing. The flexible graphite is aligned and attached to the surface of the skeleton and placed in a constant pressure press. Protective hot pressing and bonding are performed at a temperature of 150°C and a pressure not exceeding 15MPa.

Citation Information

Patent Citations

  • Automatic grain cutting equipment and cutting method

    CN117047477A