Seal ring semi-finished product of clothes treatment equipment and clothes treatment equipment

Abstract

The utility model discloses a sealing ring semi-finished product of clothes processing equipment, belongs to the technical field of clothes processing equipment, and solves the problem that the test hardness is different from the actual hardness due to vulcanization difference between test piece inspection and a sealing ring final product. According to the technical scheme, the sealing ring mainly comprises a sealing ring body subjected to vulcanization treatment, an annular groove is formed in the sealing ring body, a water outlet, a sealing lip and an installation part used for being fixed to an outer cylinder are arranged on the sealing ring body, and the sealing ring further comprises a sample block integrally formed on the sealing ring body and subjected to vulcanization treatment. The sample block avoids the annular groove, the sealing lip, the water outlet and the mounting part, and the sample block is used for measuring the hardness of the sealing ring body. The utility model mainly ensures the consistency of the hardness of the sealing ring and the test result of the sample block, and avoids the influence on the sealing effect of the washing machine due to the difference between the hardness test result and the actual hardness. The utility model further discloses clothes processing equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of clothing processing equipment, and in particular to a semi-finished sealing ring for clothing processing equipment and the clothing processing equipment itself. Background Technology

[0002] Existing garment processing equipment includes a main body and a door. The main body has an outer drum containing a cavity for holding clothes. A loading port for loading clothes into the cavity is located on the front of the main body. The door is located on the main body at the loading port. Because the loading port is on the front of the main body, a sealing ring is typically installed between the main body and the door to seal the loading port when the door is closed, preventing sealing issues during use. Since the sealing ring plays a crucial role in garment processing equipment, its manufacturing process places high demands on the material, size, hardness, sealing performance, durability, and service life of the sealing ring.

[0003] Existing technology CN201810061572.9 discloses a manufacturing process for a door cover sealing ring for a drum washing machine. The manufacturing process includes: a first stage of ingredient mixing: a weight percentage ratio of component A: component B: component C: component D: component E = 25:9:8:7:1; a first stage of intensive mixing: forming clumps with no impurities in appearance; a first stage of open mixing: forming clumps and dividing them into 4 equal pieces; and a second stage of ingredient mixing: a weight percentage ratio of component A: component B: component C: component D: component E: component F = 2... 0:20:17:5:13:25 ratio; Two-stage intensive mixing: forms a ball, with no impurities in appearance; Two-stage open mixing: sheet thickness 0.5±0.1cm, width 10±1cm; Filtration: forms a mud, with no impurities in appearance; Sheeting: sheet thickness 0.5±0.1cm, width 10±0.05cm; Test sheet inspection; Rubber preparation: reaches the corresponding vulcanization level; Vulcanization: until the surface is smooth, without cracks, deformation, bubbles, damage, impurities, no flash in the water-sealing part, and no oil stains or release agent on the surface.

[0004] In the aforementioned existing technologies, the test piece inspection process involves using a vulcanizing machine, a universal testing machine, and a hardness tester to detect the finished product's appearance, hardness, tensile strength, and elongation. After the test piece inspection, the product still needs to be vulcanized. Vulcanization, to some extent, alters the hardness of the sealing ring, leading to a discrepancy between the hardness measured in the test piece and the actual hardness of the sealing ring. When the hardness test results of the test piece are used as the design basis for the sealing performance of the garment processing equipment's door, the difference between the test results and the actual hardness may affect the sealing effect between the garment processing equipment's door and the inlet. Utility Model Content

[0005] The purpose of this invention is to provide a semi-finished sealing ring for garment processing equipment and the garment processing equipment itself. This invention solves the problem that the difference in final vulcanization between the test sample and the final sealing ring product leads to a discrepancy between the tested hardness and the actual hardness, which in turn affects the sealing performance of the sealing ring. It ensures the consistency between the process of the test sample and the process of the sealing ring, thereby ensuring the consistency between the hardness of the sealing ring and the test results of the sample, and avoiding the difference between the hardness test results and the actual hardness, which would affect the sealing effect of the garment processing equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a semi-finished sealing ring for a garment processing device, comprising a sealing ring body subjected to vulcanization treatment, wherein the sealing ring body is provided with an annular groove for insertion into the outer cylinder of the garment processing device, the sealing ring body is provided with a drain outlet, a sealing lip, and an installation part for fixing to the outer cylinder, and further comprising a sample block integrally formed on the sealing ring body and subjected to vulcanization treatment, wherein the sample block avoids the annular groove, the sealing lip, the drain outlet, and the installation part, and the sample block is used to measure the hardness of the sealing ring body.

[0007] After adopting the above technical solution, this utility model has the following advantages: The semi-finished sealing ring is set as the sealing ring body, and an annular groove is provided on the sealing ring body. The annular groove is used to connect with the outer frame of the garment processing equipment, ensuring that the sealing ring body can be stably installed on the outer drum, ensuring a seal is formed inside the outer drum when the garment processing equipment door is closed. A drain outlet is provided on the sealing ring body. When water from inside the outer drum enters the sealing ring, it is drained through the drain outlet, preventing water from accumulating inside the sealing ring for too long and causing bacterial growth. The sealing ring body also has an installation part for fixing to the outer drum. The fixed installation of the installation part improves the stability of the sealing ring on the outer drum. The sealing ring body also has a sealing lip, which abuts against the sealing lip when the garment processing equipment door is closed, ensuring... The sealing effect between the machine door and the outer cylinder; the semi-finished sealing ring also includes a sample block integrally formed on the sealing ring body and subjected to vulcanization treatment. The sample block avoids the annular groove, drain outlet, sealing lip, and installation part on the sealing ring body to prevent the presence of the sample block from affecting the drainage, installation, and sealing performance of the sealing ring; the sample block and the sealing ring body are also subjected to vulcanization treatment to ensure the consistency of the processing technology of the sample block and the sealing ring body. After the sealing ring body is processed, the sample block is removed from the sealing ring body, and a hardness test is performed on the sample block. Under the same processing technology, the difference in hardness between the sample block and the sealing ring body is avoided, thereby improving the consistency of the hardness test results with the hardness of the sealing ring body, and thus avoiding the sealing effect of the garment processing equipment due to the hardness of the sealing ring body.

[0008] Furthermore, the front end of the sealing ring body includes a first abutting part and a second abutting part located behind the first abutting part, the sealing lip is located on the front side of the first abutting part, a deformation annular groove is provided between the first abutting part and the second abutting part, and the sample block is located on the second abutting part.

[0009] When the door of the garment processing equipment is closed, the rear side of the door extends into and abuts against the inner wall of the sealing ring body. The front end of the sealing ring body is configured as a first abutting part and a second abutting part. When the door of the garment processing equipment abuts against the front end of the sealing ring body, it abuts against the first abutting part and the sealing lip, ensuring the sealing effect between the door and the outer cylinder. The deformation ring groove provides buffer and deformation space when the first abutting part is pressed, reducing the resistance of the front end of the sealing ring to the door of the garment processing equipment, and ensuring the sealing effect between the door and the outer ring body.

[0010] Furthermore, the first abutting part has an abutting surface that abuts against the machine door, and the sample block is located behind the abutting surface.

[0011] With the aforementioned technical solution, when the machine door is closed, it abuts against the contact surface to ensure the sealing effect between the machine door and the outer cylinder. The sample block is located behind the contact surface to prevent the sample block from abutting against the machine door after it is closed, which would affect the closing of the machine door and further affect the sealing effect between the machine door and the outer cylinder.

[0012] Furthermore, the sealing ring body includes an inner ring body located inside the outer cylinder and an outer ring body located outside the outer cylinder, with the sample block located on the outer ring body.

[0013] Using the aforementioned technical solution, the sealing ring body is configured as an inner ring and an outer ring. The inner ring is located inside the outer cylinder. When the door of the garment processing equipment is closed, the rear side of the door extends into the inner ring and abuts against the inner wall of the inner ring, thereby forming a seal between the sealing ring body and the door of the garment processing equipment. The sample block is placed on the outer ring body. While ensuring that the production process of the sample block is the same as that of the sealing ring body, the sample block is avoided from affecting the sealing effect between the sealing ring body and the door of the garment processing equipment.

[0014] Furthermore, the thickness of the sample block is D1, and D1 ≥ 6 mm; or, the sample block is a cylinder.

[0015] Using the aforementioned technical solution, the thickness of the sample block is set to be no less than 6mm to ensure that the sample block can be used for hardness testing and to improve the accuracy of the test results. Alternatively, the sample block can be set into a cylindrical shape, which facilitates the placement of the sample block on the test fixture when cutting it for hardness testing, allowing the pressure to be applied to the sample block during the test, thereby ensuring the accuracy of testing the hardness of the sealing ring body using the sample block.

[0016] Furthermore, the sealing ring body is provided with a connector, and the sample block is located on the side of the connector away from the sealing ring body.

[0017] When the aforementioned technical solution is adopted, if it is necessary to cut the sample block from the sealing ring body, a cutting tool is used to cut the connector so that the sample block is separated from the sealing ring body; the connector is designed to avoid damage to the sample block or the sealing ring body when cutting the sample block.

[0018] Furthermore, the dimension of the connector in the radial direction of the sealing ring body is D2, and the maximum dimension of the sample block in the radial direction of the sealing ring body is D3, where D2 > D3.

[0019] By adopting the aforementioned technical solution, the radial dimension of the connector on the sealing ring body is set to be larger than the dimension of the sample block, ensuring that the sample block is separated from the sealing ring body and that there is a gap between the sample block and the sealing ring body, which facilitates the cutting of the sample block by the cutting tool, and the cutting process will not cause damage to the sealing ring body and the sample block, thus ensuring the integrity of the sample block and the sealing ring body after cutting.

[0020] Furthermore, the thickness of the sample block is greater than the thickness of the connector.

[0021] Using the aforementioned technical solution, the sealing ring of the garment processing equipment is basically formed by injection molding. The thickness of the sample block is set to be greater than that of the connector. On the one hand, this reduces the waste of injection molding material. On the other hand, the difference in thickness makes it easier to distinguish between the test sample block and the connector, which in turn facilitates the subsequent cutting of the sample block.

[0022] Furthermore, the connector is arranged in an arc shape on the side of the sealing ring body in the circumferential direction, and the connector is smoothly connected to the sealing ring body in an arc shape.

[0023] By adopting the aforementioned technical solution, the connector is set in an arc shape on the side of the sealing ring body in the circumferential direction, so that the connector and the sealing ring body are smoothly connected in an arc shape, which facilitates the flow of liquid material during injection molding.

[0024] Furthermore, the present invention also adopts the following technical solution: a garment processing device, including a body and a door, the body having an inner cylinder and an outer cylinder sleeved outside the inner cylinder, the outer cylinder having a sealing component, the door abutting against the sealing component when closed, the aforementioned semi-finished sealing ring being assembled to the outer cylinder to form the sealing component; or, the aforementioned semi-finished sealing ring having a sample piece cut off and then being assembled to the outer cylinder to form the sealing component, the sealing component retaining cutting marks.

[0025] Using the aforementioned technical solution, after the sample block on the semi-finished sealing ring is cut off for hardness testing, the semi-finished sealing ring can still be used as a sealing component installed on the outer cylinder. At this time, the sealing component has cutting marks, and the sample block is integrally formed on the sealing ring body. The hardness is tested through the sample block, reducing the possibility of damage to the sealing ring body due to hardness testing, thereby reducing the overall cost of the garment processing equipment. Alternatively, when sampling for hardness testing, the sample block on the unselected sealing ring body is not cut off. In this case, since the sample block avoids the annular groove, drain outlet, sealing lip, and installation part, the presence of the sample block does not affect the installation and sealing performance of the sealing ring body. The semi-finished sealing ring can be directly applied to the garment processing equipment, avoiding the need for reprocessing of the sealing ring. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of a semi-finished sealing ring for a garment processing device according to the present invention.

[0028] Figure 2 This is a front view of the semi-finished sealing ring in this utility model;

[0029] Figure 3 This is a schematic diagram showing the sample block located behind the first abutment part in this utility model;

[0030] Figure 4 This is a cross-sectional view of the semi-finished sealing ring in this utility model;

[0031] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0033] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0034] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0035] like Figures 1 to 5 As shown, this utility model provides a semi-finished sealing ring for a garment processing device, including a sealing ring body 1 that has undergone vulcanization treatment. The sealing ring body 1 has an annular groove 16. The outer cylinder of the garment processing device is inserted into the annular groove 16, such that the two radially upward side walls of the annular groove 16 respectively fit against the inner and outer walls of the outer cylinder, thereby stabilizing the sealing ring body 1 on the outer cylinder. Figure 1 As shown, the sealing ring body 1 is provided with a drain outlet 11, a sealing lip, and a mounting part 12 for fixing to the outer cylinder. The sealing ring body 1 is fixed to the outer cylinder through the mounting part 12, further improving the stability of the sealing ring body 1. The drain outlet 11 on the sealing ring body 1 allows water from inside the outer cylinder to be drained out when it enters the sealing ring body 1, preventing water from accumulating inside the sealing ring body 1 for a long time and potentially causing bacterial growth. Specifically, as... Figure 2 As shown, the sealing ring body 1 of the clothing processing equipment with drying function is also provided with a drying system interface 13. The drying system interface 13 allows hot air to enter the inner drum, thereby accelerating the drying efficiency of the clothes.

[0036] In this embodiment, the semi-finished sealing ring also includes a sample block 2 integrally formed on the sealing ring body 1 and subjected to vulcanization treatment. The sample block 2 is used to measure the hardness of the sealing ring body 1. The sample block 2 is located on the sealing ring body 1, and the sample block 2 avoids the annular groove 16, the drain outlet 11, the sealing lip, and the mounting part 12 to prevent the presence of the sample block 2 from affecting the installation, drainage, and sealing performance of the sealing ring body 1. When the sealing ring body 1 also has a drying system interface 13, the sample block 2 also avoids the drying system interface 13 on the sealing ring body 1 to prevent the sample block 2 from interfering with the drying system and the drying system interface 13. The connection between the two materials affects the sealing effect. It is important to understand that both sample 2 and the sealing ring body 1 are vulcanized to ensure that the processing technology of the sealing ring body 1 and sample 2 is consistent. When testing the hardness of the sealing ring body 1 with sample 2, sample 2 is cut off from the sealing ring body 1 to test the hardness of the sealing ring body 1. This ensures that the processing technology of sample 2 is consistent with that of the sealing ring body 1, and thus ensures that the hardness of sample 2 is consistent with the hardness of the sealing ring body 1. This avoids the difference between the tested hardness and the actual hardness, which would affect the sealing effect between the sealing ring and the door of the garment processing equipment.

[0037] Specifically, such as Figure 3 As shown, the front end of the sealing ring body 1 includes a first abutting portion 17 and a second abutting portion 18 located behind the first abutting portion 17. A deformation annular groove 172 is formed between the first abutting portion 17 and the second abutting portion 18. The sealing lip is located on the front side of the first abutting portion 17. When the door of the garment processing equipment is closed, it abuts against the first abutting portion 17 and the sealing lip. The deformation annular groove 172 between the first abutting portion 17 and the second abutting portion 18 provides deformation space for the first abutting portion 17, reducing the impact of the front end of the sealing ring body 1 on the garment processing. To enhance the resistance of the garment processing equipment door and improve the sealing effect of the sealing ring, sample block 2 is placed on the second abutment part 18 to prevent sample block 2 from abutting the door of the garment processing equipment when closed. More specifically, the first abutment part 17 has an abutment surface 171 that abuts against the door of the garment processing equipment. When sample block 2 is placed, it is located behind the abutment surface 171, or more specifically, its front side is located behind the abutment surface 171, further preventing sample block 2 from affecting the door of the garment processing equipment when closed. It should be noted that in this embodiment, the front end of the sealing ring body 1 refers to the part of the sealing ring body 1 located on the outer side of the outer cylinder. Placing the front side of sample block 2 behind the abutment surface 171 also facilitates the stacking of the sealing ring body 1 after production.

[0038] In another embodiment, such as Figure 4 and Figure 5As shown, the sealing ring body 1 includes an inner ring 15 located inside the outer drum and an outer ring 14 located outside the outer drum. The sample block 2 is placed on the outer ring. When the door of the garment processing equipment is closed, its rear end extends into the sealing ring body 1. Since the inner ring 15 is located inside the outer drum, the clothes will come into contact with the inner ring 15 during the washing process. Placing the sample block 2 on the outer ring 14 avoids the possibility of the sample block 2 causing wear to the washed clothes and avoids the sample block 2 affecting the sealing effect of the sealing ring body 1.

[0039] To ensure that sample 2 can be tested for hardness, such as Figure 3 As shown, the thickness of sample 2 is D1, and D1 ≥ 6mm. The thickness of sample 2 is set to be no less than 6mm to ensure that the sample 2 can be used for hardness testing. Under the condition that the thickness of sample 2 is not less than 6mm, a certain error in the thickness of sample 2 is allowed, and the error range is no more than 0.5mm.

[0040] In another embodiment, such as Figure 2 and Figure 3 As shown, sample 2 is set as a cylinder. The cylindrical shape facilitates the pressure of the hardness testing instrument on sample 2 during the test, thereby ensuring the accuracy of the hardness test of sample 2.

[0041] After placing the sample block 2 on the sealing ring body 1, in order to facilitate hardness testing, the sample block 2 is usually cut off from the sealing ring body 1. The sample block 2 is connected to the sealing ring body 1 through the connector 3, and the sample block 2 is placed on the side of the connector 3 away from the sealing ring body 1 to ensure that the cutting tool will not damage the sealing ring body 1 when cutting the sample block 2.

[0042] In this embodiment, as Figure 2 As shown, to further ensure that the cutting tool will not damage the sealing ring body 1 when cutting sample 2, the radial dimension of connector 3 in the sealing ring body 1 is D2, and the maximum radial dimension of sample 2 in the sealing ring body 1 is D3. This ensures that D2 > D3, creating a gap between the inner side of sample 2 and the outer wall of the sealing ring body 1 on its inner diameter. This gap allows for cutting, further preventing damage to the sealing ring body 1 during cutting. It should be noted that when sample 2 is cylindrical, D3 refers to the diameter of sample 2. To ensure that sample 2 can be used for hardness testing, the diameter D3 of sample 2 must be greater than 24 mm. Similarly, a 1 mm error in the diameter of sample 2 is permissible.

[0043] In another embodiment, such as Figure 3As shown, the thickness of sample block 2 is set to be greater than that of connector 3. The difference in thickness makes it easy to distinguish between sample block 2 and connector 3. When cutting sample block 2, it can be clearly seen that the part of connector 3 is being cut, thus avoiding damage to sample block 2 when cutting sample block 2.

[0044] The sealing rings of garment processing equipment are usually injection molded, such as... Figures 1 to 5 As shown, the connector 3 is arranged in an arc shape on the side of the sealing ring body 1 in the axial direction, and the connector 3 and the sealing ring body 1 are smoothly connected in an arc shape, which facilitates the flow of liquid material during the injection molding process, thereby improving the efficiency of the molding of the sample block 2 during the injection molding process of the sealing ring.

[0045] In another embodiment, the present invention also provides a garment processing device, including a body and a door. The body has an inner cylinder and an outer cylinder sleeved outside the inner cylinder. The outer cylinder has a sealing component, which abuts against the sealing component when the door is closed. Specifically, the semi-finished sealing ring in the above embodiment is assembled on the outer cylinder to form a sealing component. Specifically, when sampling to test hardness, some of the sample blocks 2 on the sealing ring body 1 are not cut off. Since the sample blocks 2 are set to avoid the annular groove 16, the drain outlet 11, the sealing lip and the mounting part 12, the presence of the sample blocks 2 will not affect the installation and sealing performance of the sealing ring body 1, and the semi-finished sealing ring can be directly applied to the garment processing device. Alternatively, in another embodiment, the semi-finished sealing ring is cut off and then assembled on the outer cylinder to form a sealing component, and the cutting marks of the sample blocks 2 are retained on the sealing component. After the sample 2 on the semi-finished sealing ring is cut off for hardness testing, since the sample 2 avoids the annular groove 16, drain outlet 11, sealing lip and mounting part 12, the cutting of the sample 2 will not damage the sealing ring body 1, and the semi-finished sealing ring can still be used as a sealing component set on the outer cylinder; by integrally molding the sample 2 on the sealing ring body 1 and testing the hardness through the sample 2, the possibility of the sealing ring body 1 being damaged due to hardness testing is reduced, thereby reducing the overall cost of the garment processing equipment.

[0046] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A semi-finished sealing ring for a garment processing device, comprising a sealing ring body subjected to vulcanization, the sealing ring body having an annular groove for insertion into the outer cylinder of the garment processing device, the sealing ring body having a drain outlet, a sealing lip, and a mounting portion for fixing to the outer cylinder, characterized in that, It also includes a sample block integrally formed on the sealing ring body and subjected to vulcanization treatment. The sample block avoids the annular groove, sealing lip, drain outlet and mounting part. The sample block is used to measure the hardness of the sealing ring body.

2. The semi-finished sealing ring of the garment processing equipment according to claim 1, characterized in that, The front end of the sealing ring body includes a first abutting part and a second abutting part located behind the first abutting part. The sealing lip is located on the front side of the first abutting part. There is a deformation annular groove between the first abutting part and the second abutting part. The sample block is located on the second abutting part.

3. The semi-finished sealing ring of the garment processing equipment according to claim 2, characterized in that, The first abutting part has an abutting surface that abuts against the machine door, and the sample block is located behind the abutting surface.

4. The semi-finished sealing ring of the garment processing equipment according to claim 1, characterized in that, The sealing ring body includes an inner ring located inside the outer cylinder and an outer ring located outside the outer cylinder, with the sample block located on the outer ring.

5. The semi-finished sealing ring of the garment processing equipment according to claim 1, characterized in that, The thickness of the sample block is D1, and D1 ≥ 6 mm; or, the sample block is a cylinder.

6. The semi-finished sealing ring of the garment processing equipment according to claim 1, characterized in that, The sealing ring body is provided with a connector, and the sample block is located on the side of the connector away from the sealing ring body.

7. The semi-finished sealing ring of the garment processing equipment according to claim 6, characterized in that, The dimension of the connector in the radial direction of the sealing ring body is D2, and the maximum dimension of the sample block in the radial direction of the sealing ring body is D3, where D2 > D3.

8. The semi-finished sealing ring of the garment processing equipment according to claim 6, characterized in that, The thickness of the sample block is greater than the thickness of the connector.

9. The semi-finished sealing ring of the garment processing equipment according to claim 6, characterized in that, The connector is arranged in an arc shape on the side of the sealing ring body in the circumferential direction, and the connector is smoothly connected to the sealing ring body in an arc shape.

10. A garment processing device, comprising a body and a door, wherein the body has an inner cylinder and an outer cylinder sleeved outside the inner cylinder, and the outer cylinder has a sealing component that abuts against the sealing component when the door is closed, characterized in that... The sealing ring semi-finished product according to any one of claims 1 to 9 is assembled to the outer cylinder to form the sealing component; or, the sealing ring semi-finished product according to any one of claims 1 to 9 is cut off the sample piece and then assembled to the outer cylinder to form the sealing component, and the cutting marks are retained on the sealing component.

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