A capping structure and vulcanizing equipment

Abstract

This utility model provides a cap structure and vulcanizing equipment, comprising: a cap body, wherein the cap body has a spray chamber and a spray channel; one end of the spray channel has an air inlet communicating with the spray chamber; the other end of the spray channel has an air outlet communicating with the outside of the cap body; fluid is circulated within the spray chamber and the spray channel; the fluid passes sequentially through the spray chamber and the spray channel, and is then sprayed out of the outside of the cap body from the spray channel; wherein at least a portion of the air outlet is located below the air inlet. The cap structure of this utility model solves the technical problem of water accumulation on the underside of the tire during nitrogen vulcanization in related technologies.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen vulcanizing machine technology, specifically to a capping structure and vulcanizing equipment. Background Technology

[0002] With increasingly stringent environmental and energy requirements for tire vulcanization processes, nitrogen vulcanization technology is gradually replacing traditional hot water vulcanization due to its significant environmental advantages and energy efficiency. However, during nitrogen vulcanization, because nitrogen has a lower molecular weight than air, the medium is affected by buoyancy and tends to accumulate towards the top of the tire. This causes water vapor inside the tire to liquefy upon cooling and accumulate on the underside of the tire, forming condensation. This condensation problem hinders heating of the underside of the tire, resulting in localized under-vulcanization and seriously affecting product quality and safety.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a capping structure and vulcanization equipment to solve the technical problem of water accumulation on the underside of the tire during nitrogen vulcanization in related technologies.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a cap structure is provided, including a cap body, wherein the cap body has a spray chamber and a spray channel; one end of the spray channel has an air inlet communicating with the spray chamber; the other end of the spray channel has an air outlet communicating with the outside of the cap body; fluid is circulated in the spray chamber and the spray channel; the fluid passes through the spray chamber and the spray channel in sequence, and is sprayed out of the outside of the cap body from the spray channel; wherein at least a portion of the air outlet is located below the air inlet.

[0006] Furthermore, the cap body has a cylindrical structure; the extension direction of the injection chamber is parallel to the axis of the cap body.

[0007] Furthermore, there is an angle between the extending direction of the injection channel and the extending direction of the injection cavity; the angle is not equal to 90°.

[0008] Furthermore, the fluid ejected from the air outlet is used to vulcanize the tire sidewall; the included angle is set according to the position of the bottom of the tire sidewall.

[0009] Furthermore, the gland body has a mounting cavity for mounting a center rod; the mounting cavity extends through the gland body; the extending direction of the mounting cavity is parallel to the extending direction of the injection cavity.

[0010] Furthermore, the injection chamber is located on the periphery of the mounting cavity.

[0011] Furthermore, there are multiple injection channels; the multiple injection channels are arranged in a circular arrangement; each injection channel is connected to the injection chamber.

[0012] Furthermore, the spray chamber includes a first spray chamber and a second spray chamber; the pressure cap body includes a support body; the support body divides the spray chamber into the first spray chamber and the second spray chamber.

[0013] Furthermore, a protrusion is provided on the inner wall of the injection chamber; the protrusion protrudes from the inner wall of the injection chamber; and a mounting hole for installing fasteners is provided in the protrusion.

[0014] A vulcanizing apparatus for vulcanizing tires, the vulcanizing apparatus including the aforementioned capping structure.

[0015] Beneficial effects: The cap structure of this utility model includes: a cap body, wherein the cap body has a spray chamber and a spray channel; one end of the spray channel has an air inlet communicating with the spray chamber; the other end of the spray channel has an air outlet communicating with the outside of the cap body; the spray chamber and the spray channel are used for fluid circulation; the fluid passes through the spray chamber and the spray channel in sequence, and is then sprayed out of the outside of the cap body from the spray channel; wherein at least a portion of the air outlet is located below the air inlet. The downward airflow ejected from the spray channel directly impacts the water accumulated at the bottom of the tire sidewall, forcibly agitating the condensate to participate in the cyclone circulation. This avoids the accumulation of water on the lower tire sidewall due to nitrogen rising due to buoyancy, solving the technical problem of water accumulation on the lower tire sidewall during nitrogen vulcanization in related technologies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the spray chamber structure of the pressure cap structure used in this embodiment of the utility model; Figure 2 This is a schematic diagram of the supporting body of the pressure cap structure used in this embodiment of the utility model; Figure 3 This is a schematic diagram of the connection hole of the pressure cap structure used in this embodiment of the utility model; Figure 4 This is a schematic diagram of the spray channel of the pressure cap structure used in this embodiment of the utility model; Figure 5 This is a schematic diagram of the central cavity of the pressure cap structure provided in this embodiment of the utility model.

[0017] The above figures include the following reference numerals: 1. Pressure cap body; 2. Injection chamber; 3. Injection channel; 4. Air inlet; 5. Air outlet; 6. Mounting chamber; 7. First injection chamber; 8. Second injection chamber; 9. Support body; 10. Protrusion; 11. Mounting hole. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] See Figures 1 to 5 According to an embodiment of the present invention, a cap structure is provided, comprising: a cap body 1, wherein the cap body 1 has a spray chamber 2 and a spray channel 3; one end of the spray channel 3 has an air inlet 4 communicating with the spray chamber 2; the other end of the spray channel 3 has an air outlet 5 communicating with the outside of the cap body 1; the spray chamber 2 and the spray channel 3 are used for circulating fluid; the fluid passes through the spray chamber 2 and the spray channel 3 in sequence, and is sprayed out of the outside of the cap body 1 from the spray channel 3; wherein at least a portion of the air outlet 5 is located below the air inlet 4.

[0020] In the capping structure of this embodiment, see Figure 1 The pressure cap body 1 has an injection chamber 2 and an injection channel 3 inside. Nitrogen gas enters the injection channel 3 from the injection chamber 2 through the air inlet 4 and is finally ejected from the air outlet 5. At least part of the air outlet 5 is located below the air inlet 4, forming a downward airflow.

[0021] Combination Figures 1 to 5 The embodiments of this utility model are described below. The cap structure of this embodiment is applied to a nitrogen vulcanization equipment. By optimizing the airflow path and angle, it solves the problem of localized under-vulcanization caused by water accumulation on the tire sidewall. High-temperature nitrogen gas is ejected from the injection channel 3 of the cap body 1, forming a vortex-shaped high-pressure airflow within the tire blank, stirring up the water accumulation on the tire sidewall and ensuring it is heated evenly.

[0022] In this embodiment, the downward-facing airflow directly impacts the water accumulated at the bottom of the tire sidewall, forcibly agitating the condensate to participate in the cyclone circulation. This prevents nitrogen from rising due to buoyancy, thus avoiding water accumulation on the lower tire sidewall and solving the technical problem of water accumulation on the lower tire sidewall during nitrogen vulcanization in related technologies.

[0023] In the cap structure of this embodiment, the cap body 1 is cylindrical, and the injection chamber 2 is parallel to its axis. Specifically, the cylindrical structure ensures uniform airflow distribution.

[0024] In the cap structure of this embodiment, the angle α between the extension direction of the injection channel 3 and the injection chamber 2 is not equal to 90°, and the tilt angle is set according to the position of the bottom of the tire sidewall. In this way, the airflow is accurately directed to the bottom of the tire sidewall.

[0025] Specifically, the spray angle of the spray channel 3 in this embodiment is structurally adjusted based on the original cap structure. Since the original cap spray angle was an upward angle, during hot water vulcanization, the high density of hot water causes it to naturally droop downwards under gravity after being sprayed upwards, ensuring thorough mixing within the tire and minimizing overall temperature differences. However, when nitrogen is used as the heating medium, its relative molecular mass is 28, compared to 29 for normal air, causing it to rise due to buoyancy. Water vapor condenses upon contact with the cold air, forming condensate that accumulates on the lower tire sidewall. This results in the sprayed nitrogen accumulating on the upper tire sidewall and the condensate on the lower tire sidewall. Therefore, the spray angle must be corrected, changing from an upward angle to a downward angle. The magnitude of the downward angle must be determined based on the tire sidewall thickness and the tire mold used, with the spray nozzle directly hitting the lowest point of the tire sidewall as a baseline. An angle of 1°–3° should be raised, and if necessary, the height of the cap body 1 should be increased.

[0026] In the capping structure of this embodiment, see Figure 5 The pressure cap body 1 has a through mounting cavity 6 at its center for fixing the center rod. The injection chambers 2 are arranged around the mounting cavity 6. In this way, the mounting cavity 6 ensures stable support of the tire by the center rod. The circumferential design of the injection chambers 2 ensures that the airflow evenly covers the tire circumference, eliminating heating blind spots.

[0027] See Figure 2 , Figure 4 In the capping structure of this embodiment, multiple injection channels 3 are arranged around the injection chamber 2. Figure 4 Each channel is independently connected to the injection chamber 2. In this way, the multi-channel ring arrangement forms a superimposed cyclone, which enhances the intensity of airflow turbulence inside the tire and accelerates the evaporation of accumulated water.

[0028] In the capping structure of this embodiment, see Figure 2 The supporting body 9 divides the injection chamber 2 into a first injection chamber 7 and a second injection chamber 8.

[0029] With the above configuration, the support body 9 can enhance the overall strength of the structure. Furthermore, it enables graded airflow guidance, preventing uneven jetting caused by excessive pressure in a single chamber.

[0030] See Figure 2 In the pressure cap structure of this embodiment, the inner wall of the spray chamber 2 is provided with a protrusion 10, and the protrusion 10 is embedded with a mounting hole 11 for fixing the internal components.

[0031] With the above configuration, the raised structure can enhance the rigidity of the cavity, and the mounting hole 11 facilitates quick disassembly and maintenance, adapting to high temperature and high humidity environments.

[0032] The vulcanizing equipment in this embodiment includes any of the above-mentioned gland structures and is installed in the central mechanism of the nitrogen vulcanizing machine.

[0033] The vulcanizing equipment in this embodiment features an innovative integrated cap design, which completely solves the problem of under-vulcanization caused by water accumulation on the tire sidewall.

[0034] Specifically, the cap body 1 in this embodiment is made of Q235 martensitic stainless steel, which is resistant to high temperature and high humidity.

[0035] In this embodiment, during vulcanization, high-temperature nitrogen gas flows from the injection chamber 2 through the injection channel 3 to the outlet 5, forming a vortex-shaped high-pressure airflow.

[0036] This embodiment, through structural optimization, ensures uniform heating within the tire during the nitrogen vulcanization process, completely eliminating the problem of water accumulation on the lower tire sidewall. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0038] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0039] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0040] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A gland structure, characterized by, include: A cap body (1) has a spray chamber (2) and a spray channel (3) inside; one end of the spray channel (3) has an air inlet (4) communicating with the spray chamber (2); the other end of the spray channel (3) has an air outlet (5) communicating with the outside of the cap body (1); the spray chamber (2) and the spray channel (3) are used for fluid to flow; the fluid passes through the spray chamber (2) and the spray channel (3) in sequence, and is sprayed out of the outside of the cap body (1) from the spray channel (3); wherein at least a portion of the air outlet (5) is located below the air inlet (4).

2. The gland structure according to claim 1, characterized in that, The pressure cap body (1) has a cylindrical structure; the extension direction of the injection chamber (2) is parallel to the axis of the pressure cap body (1).

3. The gland structure according to claim 2, characterized in that, The extension direction of the injection channel (3) is at an angle to the extension direction of the injection cavity (2); the angle is not equal to 90°.

4. The gland structure according to claim 3, characterized in that, The fluid ejected from the air outlet (5) is used to vulcanize the tire sidewall; the included angle is set according to the position of the bottom of the tire sidewall.

5. The gland structure according to claim 2, characterized in that, The pressure cap body (1) has a mounting cavity (6) for mounting the center rod; the mounting cavity (6) extends through the pressure cap body (1); the extending direction of the mounting cavity (6) is parallel to the extending direction of the spray cavity (2).

6. The gland structure according to claim 5, characterized in that, The injection chamber (2) is located on the periphery of the mounting chamber (6).

7. The gland structure according to claim 1, characterized in that, There are multiple injection channels (3); the multiple injection channels (3) are arranged in a circle; each injection channel (3) is connected to the injection chamber (2).

8. The gland structure according to claim 1, characterized in that, The spray chamber (2) includes a first spray chamber (7) and a second spray chamber (8); the pressure cap body (1) includes a support body (9); the support body (9) divides the spray chamber (2) into the first spray chamber (7) and the second spray chamber (8).

9. The gland structure according to claim 1, characterized in that, The inner wall of the spray chamber (2) is provided with a protrusion (10); the protrusion (10) protrudes from the inner wall of the spray chamber (2); the protrusion (10) is provided with a mounting hole (11) for installing fasteners.

10. A vulcanizing apparatus for vulcanizing tires, characterized in that, The vulcanizing equipment includes the capping structure as described in any one of claims 1 to 9.

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