Dynamic sealing vacuum vulcanizing chamber of tire vulcanizing machine

Abstract

The utility model discloses a dynamic sealing vacuum vulcanizing chamber of a tire vulcanizing machine, which comprises an upper cover plate, the upper end of the upper cover plate is fixedly connected with an upper hot plate, a middle die sleeve, an upper cover, a second elastic telescopic sealing device and a connecting disc are arranged below the upper cover plate, the upper cover plate is connected with a protective cover in a sealing manner, and a heat preservation sleeve is arranged outside the protective cover. A first elastic telescopic sealing device, a lower cover plate and a lower hot plate are arranged below the protective cover, the lower cover plate is fixedly connected with a base, the upper portion of the base is connected with a lower side plate and a chuck assembly, a closed and annular vulcanizing chamber can be defined by the upper cover plate, the protective cover and the lower cover plate, a first air exhaust hole is formed in the protective cover, and a second air exhaust hole is formed in the lower cover plate. And a second air exhaust hole is formed in the upper cover plate. According to the utility model, the vacuum vulcanizing chamber and the tire molds of the same series can be applicable only by simply modifying the conventional vulcanizing machine, so that multiple purposes are realized, the maintenance is convenient, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vulcanizing machine manufacturing and tire manufacturing, in particular to a dynamic sealing vacuum vulcanizing chamber of a tire vulcanizing machine. Background Art

[0002] The surface quality of tires is an important indicator to measure the technical strength of each tire manufacturer. The tread pattern of a tire is an important part of the tire. The more beautiful its surface is, the more popular it will be with consumers. All tire manufacturers are committed to improving the beauty of tire tread patterns. Nowadays, tire patterns are becoming more and more complex. When the tire is vulcanized and molded, it will cause poor exhaust at the root of the pattern and lack of rubber on the tread. The current solution is to process multiple exhaust holes on the side of the ribs on the tread of the mold, resulting in a large amount of rubber hair on the tread after the tire is produced, which needs to be removed later.

[0003] In order to prevent rubber hair from appearing on tires, we are committed to researching sealed tire molds. Due to the large number of tire specifications, a large number of tire molds need to be modified. These tire molds need to be installed in the vulcanization chamber of the tire vulcanizer to achieve tire production. Currently, there is no vulcanization chamber of a vulcanizer that can achieve vacuum sealing. Therefore, we have launched a dynamic sealing vacuum vulcanization chamber for a tire vulcanizer. Utility Model Content

[0004] The main purpose of the utility model is to provide a dynamic sealed vacuum vulcanization chamber of a tire vulcanizer, which can form a sealed vulcanization space to facilitate vacuuming and avoid the appearance of rubber hair on the tread. Such a vulcanization chamber is simple to manufacture, convenient to maintain, low in cost, does not affect the accuracy of the mold, and is applicable to molds of the same series of specifications, which can effectively solve the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model provides a dynamically sealed vacuum vulcanization chamber of a tire vulcanizer, including an upper cover plate, the upper end of the upper cover plate is fixedly connected to an upper hot plate, a middle mold sleeve, an upper cover, a second elastic telescopic sealing device and a connecting plate are arranged under the upper cover plate, the upper cover plate is sealingly connected to a shield, an insulating sleeve is arranged outside the shield, a first elastic telescopic sealing device, a lower cover plate and a lower hot plate are arranged under the shield, the lower cover plate is fixedly connected to a base, a lower side plate and a chuck assembly are connected to the upper part of the base, a closed and annular vulcanization chamber can be formed between the upper cover plate, the shield and the lower cover plate, a first air exhaust hole is arranged on the shield, and a second air exhaust hole is arranged on the upper cover plate.

[0006] After adopting the above structure, due to the provision of the upper cover plate, the protective cover, the lower cover plate, the first elastic telescopic sealing device and the second elastic telescopic sealing device, a sealed vulcanization chamber can be formed without making other improvements to the existing tire mold. The vacuum can be drawn in advance before the tire mold is not molded into place, and there is no need to make large-scale changes to the existing vulcanizer. Multiple sets of tire molds in the same series can be adapted, with a wide range of adaptability and low labor costs.

[0007] Preferably, the second elastic telescopic sealing device is placed between the upper cover plate and the upper cover, and the second elastic telescopic sealing device is placed close to the connecting plate; the second elastic telescopic sealing device is equipped with an upper cover sealing ring, the second elastic telescopic sealing device is sealingly docked with the upper cover, and the second elastic telescopic sealing device is sealingly docked with the upper cover plate.

[0008] Preferably, a middle mold sleeve sealing ring is installed between the upper cover plate and the middle mold sleeve; and the second air extraction hole is arranged on the outer circular side surface of the upper cover plate.

[0009] Preferably, the shield and the upper cover are integrally formed or sealedly connected; an upper cover sealing ring is provided between the shield and the upper cover; and the first air extraction hole is provided on the outer circular side surface of the shield.

[0010] Preferably, the first elastic telescopic sealing device is placed at the outer circumference of the lower cover plate, the first elastic telescopic sealing device is equipped with a shield sealing ring, and the first elastic telescopic sealing device is sealed and docked with the shield.

[0011] Preferably, the lower cover plate is fixedly connected to the lower hot plate, and a lower cover plate sealing ring is provided between the lower cover plate and the lower hot plate; the lower cover plate and the lower hot plate are an integral structure; the upper cover plate is fixedly connected to the upper hot plate; the upper cover plate and the upper hot plate are an integral structure.

[0012] Preferably, the shield is sealed and docked with the first elastic telescopic sealing device before it is lowered and molded into place; and the upper cover plate is sealed and docked with the second elastic telescopic sealing device before it is lowered and molded into place.

[0013] Preferably, a connection disk sealing ring is provided between the connection disk and the upper cover.

[0014] Preferably, the first elastic telescopic sealing device and the second elastic telescopic sealing device adopt a spring structure or an inflatable structure.

[0015] Preferably, the second elastic telescopic sealing device is fixedly connected to the upper cover plate or fixedly connected to the upper cover.

[0016] In summary, the utility model can ensure that the tire is vulcanized in a vacuum state, has the advantages of simple sealing structure manufacturing, one machine for multiple uses, saving costs and greatly increasing the benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a dynamic sealing vacuum vulcanizing chamber of a tire vulcanizer of the utility model;

[0018] Figure 2 for Figure 1 The first partial schematic diagram at A in the middle;

[0019] Figure 3 for Figure 1 The second partial schematic diagram at A in the middle;

[0020] In the figure: 1. lower heating plate 2. lower cover plate 3. lower cover plate sealing ring 4. chuck assembly 5. lower side plate 6. base 7. first elastic telescopic sealing device 8. shield sealing ring 9. first air suction port 10. insulation sleeve 11. shield 12. middle mold sleeve 13. upper cover plate sealing ring 14. second air suction port 15. upper cover plate 16. upper heating plate 17. middle mold sleeve sealing ring 18. second elastic telescopic sealing device 19. upper cover sealing ring 20. connecting plate 21. upper cover 22. connecting plate sealing ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0024] See also Figures 1 to 3 As shown, the utility model provides a technical solution:

[0025] A dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer comprises an upper cover plate 15, an upper hot plate 16 is fixedly connected to the upper end of the upper cover plate 15, a middle mold sleeve 12, an upper cover 21, a second elastic telescopic sealing device 18 and a connecting plate 20 are arranged below the upper cover plate 15, the upper cover plate 15 is sealedly connected to a shield 11, a heat preservation sleeve 10 is arranged outside the shield 11, a first elastic telescopic sealing device 7, a lower cover plate 2 and a lower hot plate 1 are arranged below the shield 11, the lower cover plate 2 is fixedly connected to a base 6, a lower side plate 5 and a chuck assembly 4 are connected to the upper part of the base 6, a closed and annular vulcanizing chamber can be formed between the upper cover plate 15, the shield 11 and the lower cover plate 2, a first air extraction hole 9 is arranged on the shield 11, and a second air extraction hole 14 is arranged on the upper cover plate 15.

[0026] In this embodiment, the second elastic telescopic sealing device 18 is placed between the upper cover plate 15 and the upper cover 21, and the second elastic telescopic sealing device 18 is placed close to the connecting plate 20; the second elastic telescopic sealing device 18 is equipped with an upper cover sealing ring 19, the second elastic telescopic sealing device 18 is sealed and connected with the upper cover 21, and the second elastic telescopic sealing device 18 is sealed and connected with the upper cover plate 15; a middle mold sleeve sealing ring 17 is installed between the upper cover plate 15 and the middle mold sleeve 12; the second exhaust hole 14 is arranged on the outer circular side surface of the upper cover plate 15; the protective cover 11 and the upper cover plate 15 are integrally formed or sealed and connected between the two; an upper cover plate sealing ring 13 is provided between the protective cover 11 and the upper cover plate 15; the first exhaust hole 9 is arranged on the outer circular side surface of the protective cover 11.

[0027] In this embodiment, the first elastic telescopic sealing device 7 is placed at the outer circle of the lower cover plate 2, the first elastic telescopic sealing device 7 is equipped with a shield sealing ring 8, and the first elastic telescopic sealing device 7 is sealed and docked with the shield 11; the lower cover plate 2 is fixedly connected to the lower hot plate 1, and a lower cover plate sealing ring 3 is provided between the lower cover plate 2 and the lower hot plate 1; the lower cover plate 2 and the lower hot plate 1 are an integral structure; the upper cover plate 15 is fixedly connected to the upper hot plate 16; the upper cover plate 15 and the upper hot plate 16 are an integral structure; the shield 11 is sealed and docked with the first elastic telescopic sealing device 7 before it is lowered to close the mold; the upper cover plate 15 is sealed and docked with the second elastic telescopic sealing device 18 before it is lowered to close the mold.

[0028] In this embodiment, a connecting plate sealing ring 24 is provided between the connecting plate 20 and the upper cover 21; the first elastic telescopic sealing device 7 and the second elastic telescopic sealing device 18 adopt a spring structure or an inflatable structure; the second elastic telescopic sealing device 18 is fixedly connected to the upper cover plate 15 or fixedly connected to the upper cover 21; the first elastic telescopic sealing device 7 and the second elastic telescopic sealing device 18 have an elastic telescopic sealing function, which can ensure that the vulcanization chamber can be vacuumed through the first exhaust hole 9 and the second exhaust hole 14 before the mold is in place.

[0029] It should be noted that the closing action of the dynamic sealing vacuum vulcanization chamber of the tire vulcanizer is as follows: the upper hot plate 16, the upper cover plate 15, the shield 11 and the middle mold sleeve 12 move downward as a whole, and the upper and lower positions of other components remain stationary. When the upper cover plate 15 and the shield 11 contact the second elastic telescopic sealing device 18 and the first elastic telescopic sealing device 7 respectively at the same time, the vulcanization chamber cavity has a vacuum sealing effect. At this time, the vulcanization chamber is vacuumed through the first exhaust hole 9 and the second exhaust hole 14 until the air pressure in the vulcanization chamber reaches negative 0.1Mpa. The upper cover plate 15 and the shield 11 continue to move downward, the vulcanization chamber is completely closed, and the tire begins to be vulcanized.

[0030] The utility model can not only be modified and used on the existing vulcanizer, but also can be used to manufacture new products based on the vulcanizer in the prior art. Other structures adopt the structure of the vulcanizer in the prior art, and the corresponding vulcanizing chamber and sealing structure can adopt the structure of the utility model.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer, comprising an upper cover plate (15), the upper end of the upper cover plate (15) being fixedly connected to an upper heating plate (16), a middle mold sleeve (12), an upper cover (21), a second elastic telescopic sealing device (18) and a connecting plate (20) being arranged below the upper cover plate (15), wherein: The upper cover plate (15) is sealingly connected to a protective cover (11), an insulating sleeve (10) is provided outside the protective cover (11), a first elastic telescopic sealing device (7), a lower cover plate (2) and a lower hot plate (1) are provided below the protective cover (11), the lower cover plate (2) is fixedly connected to a base (6), the upper part of the base (6) is connected to a lower side plate (5) and a chuck assembly (4), a closed and annular vulcanization chamber can be formed between the upper cover plate (15), the protective cover (11) and the lower cover plate (2), a first exhaust hole (9) is provided on the protective cover (11), and a second exhaust hole (14) is provided on the upper cover plate (15).

2. The dynamically sealed vacuum vulcanizing chamber of the tire vulcanizer according to claim 1, characterized in that: The second elastic telescopic sealing device (18) is disposed between the upper cover plate (15) and the upper cover (21), and the second elastic telescopic sealing device (18) is disposed close to the connection plate (20); the second elastic telescopic sealing device (18) is provided with an upper cover sealing ring (19), the second elastic telescopic sealing device (18) is in sealing connection with the upper cover (21), and the second elastic telescopic sealing device (18) is in sealing connection with the upper cover plate (15).

3. The dynamically sealed vacuum vulcanizing chamber of the tire vulcanizer according to claim 1, characterized in that: A middle mold sleeve sealing ring (17) is arranged between the upper cover plate (15) and the middle mold sleeve (12); and the second air extraction hole (14) is arranged on the outer circular side surface of the upper cover plate (15).

4. The dynamically sealed vacuum vulcanizing chamber of the tire vulcanizer according to claim 1, characterized in that: The shield (11) and the upper cover plate (15) are integrally formed or sealedly connected; an upper cover plate sealing ring (13) is provided between the shield (11) and the upper cover plate (15); and the first air extraction hole (9) is provided on the outer circular side surface of the shield (11).

5. The dynamically sealed vacuum vulcanizing chamber of the tire vulcanizer according to claim 1, characterized in that: The first elastic telescopic sealing device (7) is disposed at the outer circumference of the lower cover plate (2), the first elastic telescopic sealing device (7) is provided with a protective cover sealing ring (8), and the first elastic telescopic sealing device (7) is sealedly butted with the protective cover (11).

6. The dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer according to claim 1, characterized in that: The lower cover plate (2) is fixedly connected to the lower heating plate (1), and a lower cover plate sealing ring (3) is provided between the lower cover plate (2) and the lower heating plate (1); the lower cover plate (2) and the lower heating plate (1) are an integral structure; the upper cover plate (15) is fixedly connected to the upper heating plate (16); the upper cover plate (15) and the upper heating plate (16) are an integral structure.

7. The dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer according to claim 1, characterized in that: The shield (11) is sealed and butted against the first elastic telescopic sealing device (7) before it is lowered and molded into place; and the upper cover plate (15) is sealed and butted against the second elastic telescopic sealing device (18) before it is lowered and molded into place.

8. The dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer according to claim 1, characterized in that: A connection disk sealing ring (24) is provided between the connection disk (20) and the upper cover (21).

9. The dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer according to claim 1, characterized in that: The first elastic telescopic sealing device (7) and the second elastic telescopic sealing device (18) adopt a spring structure or an inflatable structure.

10. The dynamically sealed vacuum vulcanizing chamber of a tire vulcanizer according to claim 1, characterized in that: The second elastic telescopic sealing device (18) is fixedly connected to the upper cover plate (15) or fixedly connected to the upper cover (21).

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