Floating sealing device for vulcanizing chamber of tire vulcanizing machine

Abstract

The utility model discloses a floating sealing device for a vulcanizing chamber of a tire vulcanizing machine, which comprises an upper hot plate, the upper hot plate is fixedly connected with a protective cover, a mould upper cover is arranged below the upper hot plate, an upper fixed ring and an upper floating ring are arranged on the mould upper cover, and the upper fixed ring is fixedly connected with the protective cover. An upper sliding sealing piece, an upper check block, a spring and a guide column are arranged between the upper fixing ring and the upper floating ring, an upper floating ring sealing ring is arranged on the upper floating ring, an upper fixing ring sealing ring is arranged on the upper fixing ring, a lower hot plate is arranged below the protective cover, a lower fixing ring and a lower floating ring are arranged on the lower hot plate, and the lower floating ring is arranged on the lower fixing ring. A lower sliding sealing piece, a lower check block, a spring and a guide column are arranged between the lower fixing ring and the lower floating ring, a lower floating ring sealing ring is arranged on the lower floating ring, a lower fixing ring sealing ring is arranged on the lower fixing ring, and a vulcanizing chamber can be defined by the upper hot plate, the protective cover and the lower hot plate. According to the utility model, the vulcanizing chamber can be sealed before the vulcanizing machine is closed only by simply changing the existing vulcanizing machine.

Description

Technical Field

[0001] The utility model relates to the technical field of tire manufacturing equipment, in particular to a floating sealing device for a vulcanizing chamber of a tire vulcanizer. Background Art

[0002] The tread pattern of a tire is an important part of the tire. Nowadays, tire patterns are becoming more and more complicated. When the tire is vulcanized and formed, it will lead to poor air ventilation at the root of the pattern, resulting in a lack of rubber on the tread. The current solution is to process multiple exhaust holes on the rib side of 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 improve the surface quality of tires, tires need to be vulcanized under vacuum. There are two ways to achieve vacuum vulcanization of tires. One is to make the tire mold achieve vacuum sealing effect, and the other is to make the vulcanization chamber of the vulcanizer achieve vacuum sealing effect. The vulcanization chamber seal is better than the tire mold seal. The vulcanization chamber seal can achieve one machine for multiple uses and can be applied to a variety of tire molds. Now all companies are committed to studying the sealing device of tire molds, but not the sealing device of the vulcanization chamber. There are many tire models and a large number of tire molds are required. This has strict requirements on the repeated positioning accuracy of the mold and the service life of the sealing ring. There is no mature solution yet. When the tire mold is opening and closing the mold, due to inaccurate positioning, the sealing ring will be excessively worn and the tire rubber edge phenomenon caused by over-positioning will occur. Therefore, we have introduced a floating sealing device for the vulcanization chamber of the tire vulcanizer. This device can realize the dynamic sealing of the vulcanization chamber of the vulcanizer, and can realize that one vulcanizer is applicable to a variety of tire molds, creating conditions for the production of qualified tires without tire hair. Utility Model Content

[0004] The main purpose of the utility model is to provide a floating sealing device for a vulcanization chamber of a tire vulcanizer, which can ensure that the vulcanization chamber of the vulcanizer is completely sealed before it is completely closed to facilitate vacuuming and avoid the appearance of rubber hair on the tread. Such a vacuuming sealing device is simple to manufacture, easy to maintain, low in cost, does not affect the accuracy of the tire mold, can be mass-produced, is practical as a standard part, and can effectively solve the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model provides a floating sealing device for a vulcanization chamber of a tire vulcanizer, comprising an upper hot plate, the upper hot plate is fixedly connected with a shield, a mold upper cover is arranged under the upper hot plate, an upper fixed ring and an upper floating ring are arranged on the mold upper cover, an upper sliding seal, an upper stopper, a spring and a guide column are arranged between the upper fixed ring and the upper floating ring, an upper floating ring sealing ring is arranged on the upper floating ring, an upper fixed ring sealing ring is arranged on the upper fixed ring, a lower hot plate is arranged under the shield, a lower fixed ring and a lower floating ring are arranged on the lower hot plate, a lower sliding seal, a lower stopper, a spring and a guide column are arranged between the lower fixed ring and the lower floating ring, a lower floating ring sealing ring is arranged on the lower floating ring, a lower fixed ring sealing ring is arranged on the lower fixed ring, and a vulcanization chamber can be enclosed by the upper hot plate, the shield and the lower hot plate.

[0006] After adopting the above structure, without changing the existing active mold structure, the sliding seal, fixed ring, block, floating ring seal, floating ring, guide column, spring and fixed ring seal are made into a set of standard products. This set of products is used for dynamic sealing of the vulcanizing chamber of the vulcanizer, which reduces the wear of the seal, has a wide range of applications and low labor costs, and greatly improves production efficiency.

[0007] Preferably, the shield is fixedly connected to the outer edge of the upper heating plate.

[0008] Preferably, the upper fixing ring is fixedly connected to the mold upper cover, and an upper fixing ring sealing ring is provided between the upper fixing ring and the mold upper cover; the upper fixing ring is fixedly connected to the upper heating plate, and an upper fixing ring sealing ring is provided between the upper fixing ring and the upper heating plate.

[0009] Preferably, the lower fixing ring is fixedly connected to the lower hot plate, and a lower fixing ring sealing ring is provided between the lower fixing ring and the lower hot plate; the lower fixing ring is fixedly connected to the protective cover, and a lower fixing ring sealing ring is provided between the lower fixing ring and the protective cover.

[0010] Preferably, the inner side surface of the upper fixed ring slides with the outer side surface of the upper floating ring, or the outer side surface of the upper fixed ring slides with the inner side surface of the upper floating ring; the inner side surface of the lower fixed ring slides with the outer side surface of the lower floating ring, or the outer side surface of the lower fixed ring slides with the inner side surface of the lower floating ring.

[0011] Preferably, an upper sliding seal is provided at the sliding fit between the upper fixed ring and the upper floating ring; and a lower sliding seal is provided at the sliding fit between the lower fixed ring and the lower floating ring.

[0012] Preferably, the movement of the upper floating ring is guided by a guide column; the movement of the lower floating ring is guided by a guide column.

[0013] Preferably, an upper stopper is provided between the upper fixed ring and the upper floating ring for limiting position; and a lower stopper is provided between the lower fixed ring and the lower floating ring for limiting position.

[0014] Preferably, at least one upper floating ring sealing ring is provided on the upper floating ring; and at least one lower floating ring sealing ring is provided on the lower floating ring.

[0015] In summary, the utility model can ensure that the tire is vulcanized under a vacuum state, has the advantages of simple sealing structure manufacturing, low production cost, and is suitable for all tire active molds, saving costs and greatly increasing the benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a floating sealing device for a vulcanizing chamber of a tire vulcanizer according to the utility model;

[0017] Figure 2 for Figure 1 The first partial schematic diagram at A in the middle;

[0018] Figure 3 for Figure 1 The second partial schematic diagram at A in the middle;

[0019] Figure 4 for Figure 1 The third partial schematic diagram at A in the middle;

[0020] Figure 5 for Figure 1 The fourth partial schematic diagram at A in the middle;

[0021] Figure 6 for Figure 1 The first partial schematic diagram at B in the middle;

[0022] Figure 7 for Figure 1 The second partial schematic diagram at B in the middle;

[0023] Figure 8 for Figure 1 The third partial schematic diagram at B in the middle;

[0024] Fig. 9 for Figure 1 The fourth partial schematic diagram at B in the middle;

[0025] In the figure: 1. Lower hot plate 2. Lower fixed ring seal 3. Lower fixed ring 4. Lower sliding seal 5. Lower stopper 6. Lower floating ring seal 7. Shield 8. Spring 9. Guide column 10. Lower floating ring 11. Upper hot plate 12. Mold upper cover 13. Upper fixed ring 14. Upper stopper 15. Upper floating ring seal 16. Upper floating ring 17. Upper sliding seal 18. Upper fixed ring seal. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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

[0029] See also Figures 1 to 9 As shown, the utility model provides a technical solution:

[0030] A floating sealing device for a vulcanizing chamber of a tire vulcanizer comprises an upper hot plate 11, the upper hot plate 11 is fixedly connected with a shield 7, a mold upper cover 12 is arranged under the upper hot plate 11, an upper fixed ring 13 and an upper floating ring 16 are arranged on the mold upper cover 12, an upper sliding seal 17, an upper stopper 14, a spring 8 and a guide column 9 are arranged between the upper fixed ring 13 and the upper floating ring 16, an upper floating ring sealing ring 15 is arranged on the upper floating ring 16, an upper fixed ring sealing ring 18 is arranged on the upper fixed ring 13, a lower hot plate 1 is arranged under the shield 7, a lower fixed ring 3 and a lower floating ring 10 are arranged on the lower hot plate 1, a lower sliding seal 4, a lower stopper 5, a spring 8 and a guide column 9 are arranged between the lower fixed ring 3 and the lower floating ring 10, a lower floating ring sealing ring 6 is arranged on the lower floating ring 10, a lower fixed ring sealing ring 2 is arranged on the lower fixed ring 3, and a vulcanizing chamber can be surrounded by the upper hot plate 11, the shield 7 and the lower hot plate 1.

[0031] In this embodiment, the shield 7 is fixedly connected to the outer edge of the upper hot plate 11; the upper fixing ring 13 is fixedly connected to the mold upper cover 12, and an upper fixing ring sealing ring 18 is provided between the upper fixing ring 13 and the mold upper cover 12; the upper fixing ring 13 is fixedly connected to the upper hot plate 11, and an upper fixing ring sealing ring 18 is provided between the upper fixing ring 13 and the upper hot plate 11; the lower fixing ring 3 is fixedly connected to the lower hot plate 1, and a lower fixing ring sealing ring 2 is provided between the lower fixing ring 3 and the lower hot plate 1; the lower fixing ring 3 is fixedly connected to the shield 7, and a lower fixing ring sealing ring 2 is provided between the lower fixing ring 3 and the shield 7; the inner side surface of the upper fixing ring 13 slides with the outer side surface of the upper floating ring 16 or the outer side surface of the upper fixing ring 13 slides with the inner side surface of the upper floating ring 16; the lower fixing The inner side surface of the ring 3 is in sliding cooperation with the outer side surface of the lower floating ring 10, or the outer side surface of the lower fixed ring 3 is in sliding cooperation with the inner side surface of the lower floating ring 10; an upper sliding seal 17 is provided at the sliding cooperation position between the upper fixed ring 13 and the upper floating ring 16; a lower sliding seal 4 is provided at the sliding cooperation position between the lower fixed ring 3 and the lower floating ring 10; the movement of the upper floating ring 16 is guided by the guide column 9; the movement of the lower floating ring 10 is guided by the guide column 9; an upper stopper 14 is provided between the upper fixed ring 13 and the upper floating ring 16 for limiting position; a lower stopper 5 is provided between the lower fixed ring 3 and the lower floating ring 10 for limiting position; at least one upper floating ring sealing ring 15 is provided on the upper floating ring 16; at least one lower floating ring sealing ring 6 is provided on the lower floating ring 10.

[0032] It should be noted that the floating sealing device of the vulcanization chamber of the tire vulcanizer operates as follows: the upper hot plate 11 and the shield 7 move downward as a whole, at which time the upper floating ring 16 and the lower floating ring 10 are in the highest position under the push of the elastic force of the spring 8, and when the upper hot plate 11 touches the upper floating ring seal 15, the shield 7 touches the lower floating ring seal 6 almost at the same time, at which time the upper hot plate 11 and the mold upper cover 12 remain in a sealed state, and the shield 7 and the lower hot plate 1 remain in a sealed state, and then the upper hot plate 11 and the shield 7 continue to move downward, the upper floating ring 16 and the lower floating ring 10 compress the spring 8, the upper sliding seal 17 can ensure that the upper floating ring 16 and the upper fixed ring 13 can remain in a sealed state during the movement, and the lower sliding seal 4 can ensure that the lower floating ring 10 and the lower fixed ring 3 can remain in a sealed state during the movement, and when the upper hot plate 11 and the shield 7 move downward as a whole to the mold closed state, the tire begins to be vulcanized.

[0033] The utility model only needs to make simple changes to the existing tire vulcanizer, so as to achieve a sealing effect between the mold upper cover and the upper hot plate and between the shield and the lower hot plate before the mold is completely closed, realize dynamic sealing when the vulcanization chamber is vacuumed, reduce the wear of the sealing ring, and the vacuum sealing device of the utility model can be made into a universal standard part for all tire vulcanizers.

[0034] 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 floating sealing device for a vulcanizing chamber of a tire vulcanizer, comprising an upper hot plate (11), the upper hot plate (11) being fixedly connected to a shield (7), a mold upper cover (12) being arranged below the upper hot plate (11), an upper fixed ring (13) and an upper floating ring (16) being arranged on the mold upper cover (12), an upper sliding seal (17), an upper stopper (14), a spring (8) and a guide column (9) being arranged between the upper fixed ring (13) and the upper floating ring (16), Its characteristics are: The upper floating ring (16) is provided with an upper floating ring sealing ring (15), the upper fixed ring (13) is provided with an upper fixed ring sealing ring (18), a lower hot plate (1) is provided under the shield (7), a lower fixed ring (3) and a lower floating ring (10) are provided on the lower hot plate (1), a lower sliding seal (4), a lower stopper (5), a spring (8) and a guide column (9) are provided between the lower fixed ring (3) and the lower floating ring (10), a lower floating ring sealing ring (6) is provided on the lower floating ring (10), a lower fixed ring sealing ring (2) is provided on the lower fixed ring (3), and a vulcanization chamber can be formed between the upper hot plate (11), the shield (7) and the lower hot plate (1).

2. The floating sealing device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: The protective cover (7) is fixedly connected to the outer edge of the upper heating plate (11).

3. The floating sealing device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: The upper fixing ring (13) is fixedly connected to the mold upper cover (12), and an upper fixing ring sealing ring (18) is provided between the upper fixing ring (13) and the mold upper cover (12); the upper fixing ring (13) is fixedly connected to the upper heating plate (11), and an upper fixing ring sealing ring (18) is provided between the upper fixing ring (13) and the upper heating plate (11).

4. The floating sealing device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: The lower fixing ring (3) is fixedly connected to the lower hot plate (1), and a lower fixing ring sealing ring (2) is provided between the lower fixing ring (3) and the lower hot plate (1); the lower fixing ring (3) is fixedly connected to the protective cover (7), and a lower fixing ring sealing ring (2) is provided between the lower fixing ring (3) and the protective cover (7).

5. The floating sealing device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: The inner side surface of the upper fixed ring (13) is in sliding cooperation with the outer side surface of the upper floating ring (16), or the outer side surface of the upper fixed ring (13) is in sliding cooperation with the inner side surface of the upper floating ring (16); the inner side surface of the lower fixed ring (3) is in sliding cooperation with the outer side surface of the lower floating ring (10), or the outer side surface of the lower fixed ring (3) is in sliding cooperation with the inner side surface of the lower floating ring (10).

6. The floating seal device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: An upper sliding seal (17) is provided at the sliding fit between the upper fixed ring (13) and the upper floating ring (16); and a lower sliding seal (4) is provided at the sliding fit between the lower fixed ring (3) and the lower floating ring (10).

7. The floating seal device for the vulcanization chamber of the tire vulcanizer according to claim 1, Features: The movement of the upper floating ring (16) is guided by the guide column (9); the movement of the lower floating ring (10) is guided by the guide column (9).

8. The floating sealing device for the vulcanizing chamber of the tire vulcanizer according to claim 1, Features: An upper stopper (14) is provided between the upper fixed ring (13) and the upper floating ring (16) for limiting position; and a lower stopper (5) is provided between the lower fixed ring (3) and the lower floating ring (10) for limiting position.

9. The floating seal device for the vulcanization chamber of the tire vulcanizer according to claim 1, Features: At least one upper floating ring seal (15) is provided on the upper floating ring (16); and at least one lower floating ring seal (6) is provided on the lower floating ring (10).

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