A vacuum sealing device and vacuum tire mold
A vacuum sealing and tire mold technology, applied in tires, household appliances, other household appliances, etc., can solve the problems of enlarged gap, reduced sealing effect of base and middle mold sleeve, and low service life of sealing ring.
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Embodiment 1
[0063] Please refer to figure 1 and figure 2 , as can be seen from the figure, a vacuum sealing device 10 includes an adjustment part 100, an elastic device 200 and a first sealing member 300, which cooperate with the base 21 and the middle mold case 22 of the vacuum tire mold 20 to seal the vacuum. tire mold 20.
[0064] Further, the base 21 has an annular groove 23 arranged in the circumferential direction, and the adjusting part 100 is arranged in the annular groove 23 through the elastic device 200; the elastic device 200 is configured to provide an elastic force that makes the adjusting part 100 close to the middle die casing 22; the first The sealing member 300 is embedded in the end of the adjustment part 100 close to the middle mold casing 22. The first sealing member 300 is configured to realize the sealing between the middle mold casing 22 and the adjustment part 100; the vacuum sealing device 10 also includes a second sealing member 320 ; The second seal 320 is d...
Embodiment 2
[0099] Figure 5 Schematic diagram of the structure of the vacuum sealing device provided in Embodiment 2 of the present invention; Figure 6 for Figure 5 Partial schematic diagram at C.
[0100] Please refer to Figure 5 and Figure 6 , it can be seen from the figure that the vacuum sealing device in this embodiment is consistent with the embodiment, the difference is that along the radial direction of the tire mold, the fifth sealing member 380 is embedded in the mounting ring 24 and the middle mold Between sets of 22.
[0101] The mounting ring 24 is provided with a protruding ring that matches the middle mold cover 22, and the protruding ring is pressed against the corresponding matching portion of the middle mold cover 22, and a fifth seal 380 is provided at the contact fit, and the middle mold cover 22 and the mounting ring 24 There is no need for seals on the contact surfaces in the radial direction of the mold. When it is necessary to adjust the mold preload, a ...
Embodiment 3
[0104] Figure 7 Schematic diagram of the structure of the vacuum sealing device provided in Embodiment 3 of the present invention; Figure 8 for Figure 7 Partial schematic diagram at D in middle.
[0105] Please refer to Figure 7 and Figure 8 , it can be seen from the way, and it can be seen from the figure that the vacuum sealing device in this embodiment is roughly the same as in Embodiment 1, the difference is that one end of the upper sealing ring 25 is set on the upper cover 26, and the other end is set On the radial inner side of the middle mold casing 22, the mounting ring 24 is not in contact with the sealed inner cavity, and a third sealing member 340 is provided between the upper cover 26 and the upper sealing ring 25, and the upper sealing ring 25 and the middle mold casing 22 A fifth seal 380 is provided therebetween.
[0106] The upper sealing ring 25 and the middle die sleeve 22 isolate and seal the inner cavity of the mounting ring 24 , and no seal is a...
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