JPH0659653B2 - Method and apparatus for vulcanizing elastomeric article - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a so-called gas vulcanization method and apparatus for elastomer articles such as automobile tires.

[Conventional technology]

Conventionally, as a method of gas vulcanizing an elastomer article such as an automobile tire, as shown in FIG. 9, the automobile tire article 2 is mounted in a mold 1, and the bladder 3 is attached to the tire by supplying pre-shaping internal pressure. After the inner surface is closed, the mold is closed, and the tire is installed along the inner surface of the mold, steam as a heating medium is vulcanized from an outlet 59 provided in the central mechanism of the vulcanizer and communicating with the supply passage 70. It is blown into the indoor space 6 in a substantially horizontal direction to heat and pressurize the tire. When the tire reaches a predetermined temperature or when a predetermined time elapses, the supply of the steam is stopped, and then the same as the steam is supplied. Alternatively, combustion gas or nitrogen as a high-pressure pressurizing medium may be horizontally or steam discharged from the same outlet 59.
9 is provided at the same height position as that of 9, and is blown out to the outlet for exclusive use of the pressurizing medium communicating with the supply passage in a horizontal direction, and the temperature of the tire 2 is maintained at a predetermined temperature by this gas.

[Problems to be Solved by the Invention]

In the above method, since the steam is blown out in a substantially horizontal direction, the condensed drain is not discharged but accumulates in the lower portion of the lower surface of the tire, which hinders the heating of the lower sidewall portion. In addition, the temperature of the pressurized gas is relatively lower than that of steam, and the part where the gas flow hits (the lower bead part, etc.) is cooled and the temperature drops, and when the gas is introduced, it has a relative gravity relatively to that of steam. It is large and easily accumulates in the lower portion of the inner space 6 of the tire, and therefore the temperature of the lower sidewall and the lower bead portion with which low-temperature gas comes into contact decreases. on the other hand,
The steam is biased to the upper part of the internal space 6, and the gas introduced at a high pressure adiabatically compresses the steam to raise the temperature and raise the temperature of the upper side wall portion.

Therefore, in the inner space 6 of the tire, a steam layer 61 is formed on the upper portion thereof, a gas layer 62 is formed on the lower portion thereof, and a steam drain layer 63 is formed on the lowermost portion thereof. Therefore, as shown in FIG. 4 (a), the temperature inside the tire is
The point A of the upper bead of the tire shows a rising tendency as shown by the solid line 16 after the gas supply, and the point B of the lower bead of the tire 2 shows a downward tendency as shown by the solid line 15 after the introduction of the gas. Therefore, a large temperature difference (for example, 13 ° C.) occurs between the points A and B.

Further, as shown in FIG. 4 (b), at the point C on the upper side wall portion of the tire 2, there is a rising tendency as shown by the solid line 16a after the gas is supplied, and at the point on the lower side wall of the tire 2. In D, the temperature does not rise after introducing the gas as shown by the solid line 15a. This causes a large temperature difference (for example, 12 ° C.) between the points C and D.

When the temperature difference as described above occurs, it is not completely eliminated by the end of vulcanization, so that the upper and lower side surfaces of the tire 2 have different degrees of vulcanization from each other, which is not preferable in terms of quality and the temperature rise is high. Since the required vulcanization time is set according to the lower portion of the tire that is delayed, it takes a longer time than necessary, which is not preferable from the viewpoint of productivity and energy saving.

The present invention has been made to solve such conventional drawbacks, a temperature difference does not occur inside the elastomer article during gas vulcanization, and uniform vulcanization is performed,
Provided are a method of vulcanizing an elastomer article and an apparatus therefor capable of achieving a reduction in energy loss.

[Means for Solving the Problems]

A first gist of the present invention is to heat and pressurize an elastomer article loaded in a mold by supplying a heating medium such as steam to heat the elastomer article when a predetermined temperature is reached or when a predetermined time elapses. Stop the supply of media,
Then, a gas such as nitrogen is supplied as a pressurizing medium at the same or higher pressure as that of the above heating medium until the end of the remaining time of the heating step, and after the heating step is completed, a vulcanizing medium (a mixture of the heating medium and the pressurizing medium). In the vulcanization method of the elastomer article for completing the vulcanization by discharging the heating medium, the heating medium is blown and supplied toward the oblique lower direction in the vulcanization chamber, and the pressurizing medium is moved in the oblique upper direction in the vulcanization chamber. It is designed to be supplied by blowing out toward.

The second gist of the present invention is to supply a heating medium such as steam to heat and pressurize the elastomer article loaded in the mold, and when the elastomer article reaches a predetermined temperature or a predetermined time elapses. The supply of the heating medium is stopped, and then a gas such as nitrogen is supplied as a pressurized medium at the same pressure as the heating medium or at a high pressure until the end of the remaining time of the heating step to maintain the temperature of the elastomer article at a predetermined temperature. In a vulcanization apparatus for an elastomer article, the apparatus comprises a first blow-out supply means for blowing out the heating medium toward a lower direction in a vulcanization chamber and a second blow-out supply means for blowing out the pressurized medium in an obliquely upper direction. It is equipped with and.

[Action]

In the above configuration, the high-temperature heating medium (steam) is blown downward in the interior space of the elastomer article, and the low-temperature heating medium (gas) is blown upward in the interior space. It becomes condensed drain at, and it gathers at the bottom and becomes a drain pool,
The generation of a drain pool that is pushed and scattered by the downward jet and hinders the temperature rise in the lower part is greatly prevented.
Furthermore, since steam with a high enthalpy state is blown to the lower part, the temperature rise in the lower part is more positively promoted.

In addition, the gas as a pressurizing medium cools the upper part of the tire inner surface by the upward kinetic energy of the gas at the time of initial blowing and mixes with the steam, preventing the steam from being adiabatically compressed upward, and further increasing the internal pressure. However, at the gas inflow stage when the gas blowing rate is weakened and steam is drained, the gas molecules are mixed into the lower steam due to the sedimentation action due to the low temperature and high specific gravity of the gas, during which Heat is exchanged with the gas, and the gas itself also rises in temperature, so that the gas diffuses without settling and staying in the lower part, and a temperature difference is prevented from occurring in the tire hollow portion.

〔Example〕

1 (a) and 1 (b), the mold 1 and the central mechanism 4 of the vulcanizer are almost the same as those of the above-mentioned conventional apparatus, but the structure of the blowout supply means for steam and gas formed in the central machine 4 is Is different. That is, although the configurations of the center post 40 and the upper clamp ring 41 are similar to the conventional ones,
As the first supply / blowing means, a steam supply passage 50 is formed in the piston gland 44, and the upper end of the steam supply passage 50 has a ring-shaped upper plate 43 extending on the upper side surface of the piston gland 44 and a lower clamp rig. An annular supply relay chamber 51 that communicates with the supply passage is formed around the center post 40 by the peripheral wall (weir) 71 that is erected at the radial end edge of the upper surface of the upper surface 42, and the lower portion of the peripheral wall 71 of the supply relay chamber 51. A plurality of steam outlets 5 are formed in the circumferential direction at predetermined intervals in a downward direction, that is, in a diagonally lower direction of the tire internal space, that is, toward the lower sidewall portion 75. In the figure, 49 is the lower bead ring,
Further, 48 is an upper bead ring. Further, as the second blow-off supply means, a gas supply passage 70 which also serves as a drain discharge passage is formed in the piston gland 44, and
At the upper end of the gas supply passage 70, that is, in the lower position near the center of the vulcanizer, the passage 70 communicates with the upper surface of the piston gland 44, and the upper direction of the vulcanization chamber, for example, above the center of the vulcanizer. Two outlets 7 that open toward each other are formed. A cylindrical baffle plate 72 is erected on the peripheral wall 71 around the entire radial edge of the upper surface of the relay chamber 51, and a gas space 60 surrounded by the baffle plate 72 is formed.

The gap between the upper end of the baffle plate 72 and the lower surface of the upper clamp ring is 10 to 30% of the distance between the lower surface of the upper clamp ring and the upper surface of the lower clamp ring when the mold is fully closed. Thinning effect is 10%
If it is less than the above, the efficiency of discharging and collecting drainage and the like decreases.

FIG. 2 shows another embodiment of the present invention, which is the same as the embodiment of FIG. 1 except for the following points. That is, the annular gas supply relay chamber 46 is provided around the center post 40 by the casing 45 on the upper surface of the piston gland 44.
And a gas supply passage 7 is formed in the gas supply relay chamber 46.
The upper end of 0 is communicated, and a plurality of gas outlets 7 are formed on the upper surface of the casing 45, which are open in the upper direction of the vulcanization chamber, for example, toward the upper center side.
Other configurations are similar to those of FIG. 1 (a). In this case, the baffle plate 72 is not always necessary.

3 (a) (b) (c) show an example in which the present invention is applied to a so-called bagomatic type (BOM) vulcanizing apparatus,
A gas supply passage 40a is formed in the axial center of the center post 40 as a second supply blow-out supply means, and its upper end communicates with a plurality of blow-out passages 41a formed in the upper clamp ring 41 in the radial direction. At the tip of the passage 41a, a blowout port 7 is formed obliquely above the vulcanization chamber, for example, toward the upper side wall portion 73. If each of the outlets 7 is formed obliquely upward in the circumferential direction,
The gas ejected upward swirls in the circumferential direction.

Further, as the first blow-off supply means, a steam supply passage 50 is formed in the lower clamp ring hub 80, and the blow-out port 5 communicating with the passage 50 and obliquely in the lower direction of the vulcanization chamber, for example, toward the lower sidewall portion 75. Are formed in plural. If each of the openings 5 is formed obliquely downward in the circumferential direction, the steam jetting downward will swirl in the internal space 6 in the circumferential direction. Further, a discharge passage 44a for steam and gas is formed in the lower clamp ring hub 80, and an upper end portion of the discharge passage 44a extends in the radial direction and a tip end portion thereof opens into the internal space 6. This opening may be formed at only one location in the circumferential direction.

In another embodiment of the second blow-off supply means, as shown in FIG. 3 (d), the supply passage 40a is provided in the center post.
In addition, a plurality of supply sub-pipes 76 of the pipe body are radially arranged along the lower surface of the upper clamp ring 41, and are fixed by a locking member 77, and one end of the sub-pipe 76 is connected to the passage 40.
It may be communicated with a and the other end may be opened toward the obliquely upper direction of the vulcanization chamber.

FIGS. 5 (a), (b) and (c) show an example in which the present invention is applied to a so-called auto-form type vulcanizer. In FIG. 5 (a), the central mechanism 4a includes a chuck assembly portion 48 and its surroundings. It is composed of a bead ring 48, a bag well 46 and a bead ring 49 around it. The bladder 30 is integrally formed up to the center on the upper side, and the center is received by the chuck assembly portion 47 and the bead ring 48 from the upper side, and the lower side receives the inner peripheral edges of the elastomer article 2 and the bladder 30 from the bag well 46 and the bead ring. 49
Holding in.

A recess 63 is formed in the center of the bag well 46, and a discharge port 64 for discharging the steam and gas in the internal space 6 is formed at the lower end thereof. A steam supply passage 50 is formed in Bagwell, and the outlets 5 opening toward the lower side of the vulcanization chamber at the upper end of the steam supply passage 50, for example, toward the lower side wall portion 75 are circumferentially arranged at predetermined intervals. At the upper end of the gas supply passage 70, that is, at a lower position near the center of the vulcanizer, a plurality of outlets 7 are formed in the oblique upper direction of the vulcanizing chamber, for example, toward the upper side wall portion 73 in the circumferential direction. The second blow-off supply means is formed by a plurality of them.

Further, in FIG. 5 (b), the steam outlet 5 is formed obliquely downward similarly to the above, but the gas outlet 7 is directed toward the upper chuck assembly portion.

The outlets 5 and 7 in FIGS. 5 (a) and 5 (b) are respectively inclined in the same direction from the radial direction as shown in FIG. 5 (c), so that steam and gas ejected in the inner space 6 are discharged. I try to turn.

Further, the outlet 7 may be opened on the upper side surface of the bag well 46 as shown in FIG. 5 (d).

FIGS. 6 (a), (b) and (c) show an example in which the present invention is applied to a so-called rolling-in-bladder type vulcanizer, and a gas supply passage 70 is provided in the center post 40 as a second blow-off supply means. The upper clamp ring 41a is formed with a plurality of blowout passages 70a extending in the radial direction, and the tip end portion of the blowout passages 70a opens in an obliquely upper direction in the vulcanization chamber 6, for example, toward the upper side wall portion 73. It has a mouth 7.

As the first blow-off supply means, a steam supply passage 50 is provided in the bagwell 42a, and an upper end portion of the steam supply passage 50 is directed obliquely downward in the vulcanization chamber 6, for example, toward the lower side wall portion 75. A plurality of air outlets 5 are formed at predetermined intervals in the circumferential direction. As shown in FIGS. 6 (b) and 6 (c), the outlets 5 and 7 are formed so as to be inclined from the radial direction so that the jetted gas and steam swirl in the inner space 6 in the circumferential direction. ing. In the figure, 44 is a discharge pipe, and 12 is a sleeve.

FIGS. 7 (a) and 7 (b) show still another embodiment, in which the gas supply passage 70 is formed in the bag well 42b, and the vulcanization chamber 6 is provided at the upper end portion thereof, that is, in the lower position near the center of the vulcanizer. A plurality of outlets 7 are formed in the circumferential direction, the outlets 7 opening toward the upper diagonal direction of the upper side wall portion 73, for example.
Further, in the same bag well 42b, a steam supply passage (not shown) and a plurality of outlets 5 opening in the oblique lower direction of the vulcanization chamber 6, for example, toward the lower side wall portion 75 in the circumferential direction are provided in the tip portion thereof. Has been formed. These outlets 5 and 7 are also formed so as to be inclined from the radial direction as shown in FIG. 7 (b), so that the ejected gas and steam swirl in the inner space 6 in the circumferential direction.
A discharge passage 44c for steam and gas is formed in the center of the bag well 42b.

FIGS. 8 (a) and 8 (b) show still another embodiment, in which the gas supply passage 70 is formed in the well portion of the bag well 42d, and the gas supply passage 70 is formed at the upper end portion thereof, that is, at the lower position near the center of the vulcanizer. A plurality of outlets 7 are formed in the circumferential direction that are open toward the upper side of the vulcanization chamber 6, and a steam supply passage 50 is formed on the outer peripheral side of the vulcanization chamber 6 in the diagonally lower direction of the vulcanization chamber 6 at the upper end thereof. A plurality of outlets 5 opening toward the periphery are formed in the circumferential direction. The outlets 5 and 7 are also formed so as to be inclined from the radial direction, as shown in FIG.
The spouted gas and steam are swirled in the space 6 in the circumferential direction. In the figure, 44c is a discharge pipe.

As is clear from each of the above-described embodiments of the present invention (FIGS. 1, 2, 3, 5, 6, 7 and 8), there is an oblique lower direction which is the blowing direction of the heating medium (steam) in the present invention. Is the direction toward or near the lower sidewall portion of the tire, and the diagonally upper direction, which is the blowing direction of the pressurized medium (gas), is the upper sidewall portion of the tire from above the central portion of the vulcanizer. It is the direction toward any part of the area.

Next, a method of vulcanizing a tire as an elastomer article by the apparatus of the present invention will be described. First, as is known, the tire 2 is mounted in the mold 1, the shaping medium is supplied through a pipe (not shown), the bladder 3 is pressed along the inner surface of the elastomer article 2, and then the mold is closed and the tire is closed. Along the inner surface of the mold.

Then, steam having a pressure of, for example, 15 kg / cm ² is supplied for 5 minutes into the inner space 6 of the tire through the steam supply passage 50 and the outlet 5. The steam blown obliquely downward from the outlet 5 is blown to the lower sidewall portion 75, which is the lowermost portion in the internal space 6, to form a jet.
Due to this steam, the temperature of the tire 2 is raised to a temperature necessary for proceeding the vulcanization reaction, for example, about 180 ° C. Then, at a low temperature of about room temperature (for example, 40 ° C.), for example, a pressure of 18 kg / cm ² and a pressurized gas are jetted obliquely upward from the gas supply passage 70 and the outlet 7 into the internal space 6 for, for example, 5 minutes. The gas blown out obliquely upward cools the upper part of the internal space 6, then gradually goes downward and is mixed with the steam inside. Therefore, it is possible to prevent a large temperature difference between the upper part and the lower part in the internal space 6 due to the cooling effect and the mixing effect of the inner upper part of the tire due to the upward flow.

In the apparatus shown in FIGS. 1 and 2, the air temporarily floats in the space 60 inside the spouted gas baffle 71, then overflows the baffle 71 and enters the inner space 6 outside thereof, and gradually with steam. As a result, the steam is prevented from being adiabatically compressed toward the upper part inside the tire and the temperature of the upper part is not greatly increased unlike the conventional case, and the lower bead part is not cooled.

Therefore, it is possible to prevent the temperature difference between the upper portion and the lower portion of the internal space from occurring as in the conventional example. For example, in the case of the apparatus of FIG. 1, as shown in FIG. 4 (a) by the supply of steam, the point A of the upper bead portion of the tire 2 shows a temperature tendency as shown by the broken line 18 after gas supply, Further, at the point B of the lower bead portion, a temperature tendency as shown by a broken line 17 is shown. As a result, the temperature difference between points A and B is, for example, 5 ° C.
This is a significant reduction compared to the conventional example (temperature difference 13 ° C.).

Further, as shown in FIG. 4 (b), the point C of the upper sidewall of the tire 2 shows the temperature tendency of the broken line 18a after the gas is supplied, and the point D of the lower sidewall of the tire 2 is the broken line 17a after the gas is supplied. The temperature tendency is shown. As a result, the temperature difference between points C and D is, for example, about 4 ° C., which is significantly smaller than that of the conventional example (temperature difference of 12 ° C.).

After performing the above-mentioned vulcanization, the valve (not shown) in the pipe is opened to discharge the mixture of gas and steam (vulcanization medium) in the internal space 6 from the discharge line. Then, the valve is closed and the other valves are opened, the bladder 3 is removed from the tire 2 by vacuum, the upper mold of the mold 1 is opened, and the vulcanized tire 2 is removed. However, in the case of bladderless vulcanization, there is no such vacuuming step.

When a nylon carcass ply tire is used as the tire 2, cooling water is introduced into the tire, and after completion of vulcanization, a mixture of gas and steam and a mixture of gas and cooling water are discharged from the discharge line.

Further, the present invention is not limited to the tire vulcanizer with a bladder,
As shown in FIG. 3 (e), it goes without saying that it can be applied to a so-called bladderless vulcanizer that does not use a bladder. In this case, as shown in the same figure, for example, a contact surface between the upper bead ring 48 and the upper clamp ring 41 and a contact surface between the lower bead ring 49 and the lower clamp ring 42 or the outer periphery of the upper end portion of the lower clamp ring 4 or the lower clamp ring 4 are shown.
A sealing ring 33 is arranged on each of the contact surfaces of the piston 2 and the piston gland 44 to provide a seal therebetween. A gas supply passage 70 is formed in the piston ring 44 at a lower position near the center of the vulcanizer, and a gas outlet 7 that opens upward is formed at the upper end portion thereof. A steam supply passage 50 is formed in the piston gland 44, and the ring-shaped upper plate 43 extending on the upper side of the steam supply passage 50, the upper surface of the piston gland 44, and the upper surface of the lower clamp ring 42 in the radial direction. An annular supply relay chamber 51 that communicates with the supply passage is formed around the center post 40 by the peripheral wall (weir) 71 that is provided upright on the end edge. A plurality of steam outlets 5 are formed at predetermined intervals downward, that is, toward the lower side of the tire internal space, that is, toward the lower sidewall portion.

〔The invention's effect〕

As described above, according to the present invention, the high-temperature steam of the heating medium is blown and supplied obliquely downward in the internal space of the elastomer article loaded in the mold, and the low-temperature gas of the pressurizing medium is obliquely upward. Is blown into the chamber, so that the steam and the gas are mixed well and a large temperature difference is prevented from occurring in the internal space, so that a uniform vulcanization is performed. Further, by eliminating the temperature difference, the vulcanization time can be shortened, and productivity can be improved and energy loss can be reduced.

[Brief description of drawings]

FIG. 1 (a) is a longitudinal sectional view showing an embodiment of the present invention,
FIG. 1 (b) is a side view of the weir, FIG. 2 is a sectional view showing another embodiment of the present invention, and FIG. 3 (a) is a sectional view showing yet another embodiment. (b) and (c) are side views of the steam spouting part and the gas spouting part of (a), respectively, and FIGS. 3 (d) and 3 (e) are sectional views showing still another embodiment, and FIG. (A) and (b) are respectively FIG. 3 (a).
FIG. 5A is a sectional view showing temperature and time during vulcanization at each point of the elastomer article by the apparatus of FIG. 5, FIG. 5A is a sectional view showing still another embodiment, and FIG. 5B is the apparatus of FIG. 5C is a cross-sectional view showing a modified example of the gas ejection portion, FIG. 5C is a plan view of the gas ejection portion of FIGS. 5A and 5B, and FIG. 5D is another example of the gas ejection portion. Partial sectional view, FIG. 6 (a) is a sectional view showing still another embodiment, (b) and (c) are side views of the gas ejection portion and the steam ejection portion, respectively.
FIG. 7A is a cross-sectional view showing still another embodiment, FIG. 7B is a plan view of the gas ejection portion, and FIG. 8A is a cross-sectional view showing yet another embodiment. FIG. 9 is a plan view of the gas ejection portion, and FIG. 9 is a sectional view of a conventional device. 1 ... Mold, 2 ... Elastomer article, 3 ... Bladder, 4, 4a ... Central mechanism, 5 ... Steam outlet, 6 ... Internal space, 7 ... Gas outlet , 50 ... steam supply passage, 70 ... gas supply passage, 72 ... baffle plate.

Claims (13)

[Claims] 1. A heating medium such as steam is supplied to heat and pressurize an elastomer article loaded in a mold, and the heating medium is supplied when the elastomer article reaches a predetermined temperature or after a predetermined time elapses. Then, a gas such as nitrogen is supplied as a pressurized medium at the same or higher pressure as the heating medium until the end of the remaining time of the heating step, and after the heating step, the vulcanizing medium is discharged to complete the vulcanization. In the method of vulcanizing an elastomer article, the heating medium is blown and supplied toward a diagonal lower direction in the vulcanization chamber, and the pressurizing medium is blown and supplied toward a diagonal upper direction in the vulcanization chamber. A method for vulcanizing an elastomeric article characterized. 2. The method for vulcanizing an elastomer article according to claim 1, wherein the elastomer article is a tire. 3. The upper direction of the vulcanization chamber into which the pressurized medium is blown is a direction from the upper part of the central part of the vulcanizing device to any part of the area extending from the upper sidewall part of the tire, and The method for vulcanizing an elastomer article according to claim 2, wherein the lower direction in the vulcanization chamber into which the heating medium is blown is a direction toward the lower sidewall portion of the tire or the vicinity thereof. 4. A heating medium such as steam is supplied to heat and pressurize an elastomer article loaded in a vulcanization chamber, and when the elastomer article reaches a predetermined temperature or a predetermined time elapses, Vulcanization of an elastomeric article in which the temperature of the elastomeric article is maintained at a predetermined temperature by stopping the supply and then supplying a gas such as nitrogen as a pressurized medium at the same or higher pressure as the above heating medium until the end of the remaining time of the heating step. In the apparatus, the apparatus comprises a first blow-off supply means for blowing the heating medium toward a diagonal lower direction in the vulcanization chamber, and a second blow-off feed means for blowing the pressurized medium toward a diagonal upper direction in the vulcanization chamber. A vulcanization device for an elastomer article, comprising: 5. The vulcanizing apparatus for an elastomer article according to claim 4, wherein the elastomer article is a tire. 6. The obliquely upper direction in the vulcanization chamber from which the pressurizing medium is blown is a direction from the upper part of the center of the vulcanizing device to the area extending from the upper sidewall portion of the tire, and the heating medium is blown out. The vulcanization device for an elastomer article according to claim 4 or 5, wherein the oblique lower direction in the vulcanization chamber is a direction toward the lower sidewall portion of the tire or the vicinity thereof. 7. The first blow-off supply means includes a supply passage provided in a clamp ring hub of a vulcanizing device, and a side surface of the clamp ring hub which communicates with the supply passage and extends in a diagonally lower direction of a vulcanization chamber. 7. A vulcanization device for elastomer articles according to any one of claims 4 to 6, characterized in that it comprises a plurality of blow-out ports that are opened in. 8. The second blow-off supply means has a supply passage provided in a center post of a vulcanizing device, communicates with the supply passage in an upper clamp ring, and extends in an obliquely upper direction of a vulcanization chamber. The vulcanization device for an elastomer article according to any one of claims 4 to 7, wherein a plurality of blowout passages that open are provided in the radial direction. 9. The second blow-off supply means has a supply passage provided in a center post of a vulcanizing device, communicates with the supply passage along a lower surface of an upper clamp ring, and is obliquely upward from a vulcanization chamber. 5. A plurality of outlet passages that open toward each other are provided in the radial direction.
7. A vulcanization device for elastomeric articles according to any of 7. 10. The second blow-off supply means is connected to a supply passage provided in a bakuwell of a vulcanizing device, and communicates with the supply passage on an upper surface or an upper side surface of the bagwell in an obliquely upper direction of the vulcanization chamber. The vulcanization device for an elastomer article according to any one of claims 4 to 7, comprising a plurality of outlets that are open. 11. The first blow-off supply means comprises a supply passage provided in a piston gland of a vulcanizer, a ring-shaped upper plate extending on an upper side surface of the piston gland, and a radius of an upper surface of a lower clamp ring. Formed of a peripheral wall that is erected on the end edge in the direction, and a supply relay chamber that communicates with the supply passage, and a cylindrical baffle plate is erected on the entire circumference of the radial end edge of the upper surface of the supply relay chamber. The lower part of the peripheral wall of the supply relay chamber is provided with a plurality of outlets that open in the oblique lower direction of the vulcanization chamber, and when the vulcanization chamber is fully closed, the gap between the upper end of the baffle plate and the lower surface of the upper clamp ring is It is 10 to 30% of the distance between the lower surface of the upper clamp ring and the upper surface of the lower clamp ring, and the second blow-off supply means communicates with the supply passage provided in the piston gland and the upper surface of the piston gland. Vulcanizer elastomeric article according to claim 4, obliquely upper direction 硫室 characterized by comprising the one or more air outlet which opens. 12. The first blow-off supply means includes a supply passage provided in a piston gland of a vulcanizer, a ring-shaped upper plate extending on an upper side surface of the piston gland, and a radius of an upper surface of a lower clamp ring. A plurality of openings formed in a lower part of the peripheral wall of the vulcanization chamber, which is formed by a peripheral wall standing upright on the outer edge in the direction and which is in communication with the supply passage. The second supply blow-off supply means includes a supply passage provided in the piston gland, and a supply relay chamber formed on the upper surface of the piston gland so as to surround the center post and communicating with the supply passage. The elastomer according to any one of claims 4 to 6, further comprising: a plurality of outlets that are open in an obliquely upper direction of the vulcanization chamber on the upper surface of the supply relay chamber. Vulcanizing apparatus of the article. 13. A cylindrical baffle is erected on the entire circumference of the radial end edge of the upper surface of the supply relay chamber of the first blow-off supply means, and when the vulcanizing chamber is fully closed, the upper end of the baffle and the upper clamp. The vulcanization device for an elastomer article according to claim 12, wherein the gap between the lower surface of the ring and the lower surface of the upper clamp ring is 10 to 30% of the distance between the upper surface of the lower clamp ring and the upper surface of the lower clamp ring.