Vulcanizing mold with steam chamber

Abstract

The utility model discloses a vulcanization mold with a steam chamber, which belongs to the technical field of tire vulcanization and comprises a cavity component, and a cooling chamber is arranged at the position, close to a bead seam allowance, of the cavity component. A cooling medium is arranged in the cooling chamber, and the temperature of the cooling medium is lower than the overall vulcanization temperature of the tire. Through the structure, the problem of over-vulcanization of the bead seam allowance position can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tire vulcanization, specifically relates to a vulcanization mould with a steam chamber. BACKGROUND

[0002] At present, the vulcanization equipment generally used for engineering tires, especially giant engineering tires, is ordinary steamer type mould, which is mainly vulcanized in the steamer of a vulcanization machine (or a vulcanization tank).

[0003] When the above-mentioned method is used to vulcanize tires, the mould with the tire blank is placed in the steamer (or the vulcanization tank) as a whole, and the mould is isothermally vulcanized by steam wrapping, and the vulcanization temperature of each part of the tire blank is equal.

[0004] For ordinary small-sized engineering tires, the thickness difference of the cross section of each position is relatively small, and isothermal vulcanization has little effect on the quality of the tire, but for large-sized engineering tires, especially giant tires, the thickness difference of the cross section of some positions is relatively large, and if the traditional steamer type mould is still used for isothermal heating vulcanization, the problem of insufficient vulcanization in thick parts and excessive vulcanization in thin parts often occurs, specifically, the cross section of the bead sub-port position is relatively thin, so the rubber is easily over-vulcanized, the mechanical properties are reduced, and the overall quality of the tire is directly affected, the service life is reduced, and even there is a safety risk of tire burst. SUMMARY

[0005] In view of the problems existing in the prior art, the vulcanization mould with a steam chamber provided by the utility model can avoid the problem of over-vulcanization at the bead sub-port position.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vulcanization mould with a steam chamber, comprising a cavity assembly, wherein the cavity assembly is provided with a cooling chamber near the bead sub-port position;

[0007] The cooling chamber is provided with a cooling medium, and the temperature of the cooling medium is lower than the overall vulcanization temperature of the tire.

[0008] Preferably, the cavity assembly comprises a steel ring, and the steel ring is internally provided with the cooling chamber.

[0009] Preferably, the cooling medium is water, oil or gas.

[0010] Preferably, the cooling chamber is close to the cavity surface of the inner side of the cavity assembly.

[0011] Preferably, a plurality of baffles are arranged in the cooling chamber, and the baffles form a baffle chamber in the cooling chamber.

[0012] Preferably, adjacent baffles are alternately connected to the inner ring side wall of the cooling chamber and the outer ring side wall of the cooling chamber.

[0013] Preferably, the cooling chamber is connected with a medium inlet and outlet channel, and the medium inlet and outlet channel is arranged below the cooling chamber.

[0014] The other end of the medium inlet and outlet channel is arranged on the inner wall of the ring of the steel ring.

[0015] Preferably, the steel ring is provided with a chamber ring groove on the side away from the cavity surface, and a sealing cover plate is connected to the chamber ring groove, the sealing cover plate is used for sealing the chamber ring groove, and the chamber ring groove sealed by the sealing cover plate forms the cooling chamber.

[0016] Preferably, the steel ring is provided with a mounting ring groove on the side away from the cavity surface, and a split steel ring is connected to the mounting ring groove, the split steel ring is provided with a split ring groove, and a split cover plate is arranged on the split ring groove and used for sealing the split ring groove, and the split ring groove sealed by the split cover plate forms the cooling chamber.

[0017] Preferably, the utility model also comprises a chuck, and the steel ring is connected with a secondary steel ring, and the secondary steel ring and the chuck can clamp the clamping edge of the capsule.

[0018] The utility model has the advantages of:

[0019] 1. The utility model discloses a cooling chamber is arranged near the position of the bead subport, and the temperature of the cooling medium in the cooling chamber is lower than the vulcanization temperature in the steamer, so that the temperature of the bead subport position is reduced, the vulcanization temperature of the thinner position is reduced, the problem of excessive vulcanization is avoided, the temperature of other parts of the tire remains unchanged, the temperature of the thicker position of the tire section remains unchanged, the mechanical properties of the rubber of each part of the tire are best, and finally the whole high-quality tire is vulcanized.

[0020] 2. The cooling chamber of the utility model forms a baffle chamber by arranging a baffle, prolongs the circulating stroke of the cooling medium, and further improves the cooling efficiency.

[0021] 3. The utility model is suitable for the transformation of old molds, and the old molds only need to be transformed or replaced with a steel ring to realize the cooling vulcanization of the bead subport position, realize the reuse of the old molds, and reduce the procurement cost of the molds. DRAWINGS

[0022] Figure 1 It is a sectional view of a vulcanization mold with a steam chamber as a flexible mold;

[0023] Figure 2 It is a sectional view of a vulcanization mold with a steam chamber as a two-half mold;

[0024] Figure 3 It is a sectional view of the cooling chamber of the utility model integrally arranged on the steel ring;

[0025] Figure 4 The sectional view of the split cooling chamber arranged on the steel ring of the utility model;

[0026] Figure 5 The perspective view of the steel ring of the utility model.

[0027] In the figure: 1, steel ring; 2, cooling chamber; 3, side plate; 4, pattern block; 5, pay steel ring; 6, chuck; 7, die body; 11, sealing cover plate; 12, split cover plate; 13, split steel ring; 14, baffle. DETAILED DESCRIPTION

[0028] In order to facilitate the person skilled in the art to understand, the utility model is further explained below in combination with the drawings.

[0029] As Figures 1 to 5 Indicated, a kind of vulcanization mould with steam chamber, including cavity assembly, cavity assembly can directly contact with the outer surface of vulcanized tire, the utility model cavity assembly is equipped with cooling chamber 2 close to bead subport position, cooling medium is equipped in cooling chamber 2, the temperature of cooling medium is lower than the overall vulcanization temperature of tire, i.e.

[0030] The purpose is to reduce the temperature of bead subport position, i.e. the vulcanization temperature of thinner position is reduced, to avoid excessive vulcanization problem, while the temperature of other parts of tire remains unchanged, i.e. the temperature of thicker position of tire section remains unchanged, so that each part of tire rubber material can exert the best mechanical properties of vulcanized rubber, and finally vulcanize overall high-quality tire.

[0031] Cavity assembly includes steel ring 1, for live die also include side plate 3 and pattern block 4, for two half moulds also include die body 7, cooling chamber 2 is arranged inside steel ring 1, steel ring 1 specifically includes upper steel ring 1 and lower steel ring 1, this structure belongs to conventional structure in the art, and no detailed description is made, the cooling chamber 2 of the utility model is arranged in upper steel ring 1 and lower steel ring 1 respectively, and the cooling medium in cooling chamber 2 is water or oil or gas, as long as it can reduce the vulcanization temperature of bead subport position.

[0032] Specifically, cooling chamber 2 is preferably close to the cavity face of the inner side of cavity assembly, so that the vulcanization temperature of bead subport position can be adjusted more quickly.

[0033] The utility model is equipped with several baffles 14 in cooling chamber 2, adjacent baffles 14 are alternately connected on the inner ring side wall of cooling chamber 2 and the outer ring side wall of cooling chamber 2, and the baffles 14 will form a baffle chamber in cooling chamber 2, which can prolong the circulating stroke of cooling medium and further improve the cooling efficiency.

[0034] The utility model discloses cooling chamber 2 is connected with medium access channel, and medium access channel and cooling chamber 2 communication end preferably set in the below of cooling chamber 2, and the other end of medium access channel sets on the inside wall of ring of steel ring 1, and it is convenient to discharge the medium in cooling chamber 2.

[0035] The utility model discloses steel ring 1 is equipped with chamber ring groove on the side away from the cavity face, and the chamber ring groove is connected with sealing cover plate 11 sealing chamber ring groove, and the chamber ring groove sealed by sealing cover plate 11 forms cooling chamber 2, and this cooling chamber 2 is equivalent to directly process on steel ring 1, and the utility model also can process cooling chamber 2 first, and then install on steel ring 1, specifically, install ring groove on the side away from the cavity face of steel ring 1, and the split steel ring 13 is connected on the ring groove, and split ring groove is processed on the split steel ring 13, and split ring groove is sealed by split cover plate 12 on split ring groove, and finally make split ring groove sealed by split cover plate 12 form cooling chamber 2.

[0036] The above two kinds of ways can satisfy the use demand, and are applicable to the transformation of old mould, and the old mould only needs to be transformed or replaced steel ring 1 to realize the cooling vulcanization of bead sub-port position, realizes the reuse of old mould, and reduces the procurement cost of mould.

[0037] In addition, the utility model also includes chuck 6, and steel ring 1 is connected with auxiliary steel ring 5, and the auxiliary steel ring 5 and chuck 6 can clamp the clamping edge of capsule.

[0038] It should be understood that the use of these embodiments is only for illustrating the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A curing mold with a steam chamber, characterized by, The mould cavity assembly is provided with a cooling chamber (2) near the bead opening position, and the cooling chamber (2) is connected with a medium inlet and outlet channel. The cooling chamber (2) is provided with cooling medium, and the temperature of the cooling medium is lower than the overall vulcanization temperature of the tire.

2. A cure press with a steam chamber as defined in claim 1, wherein The mould cavity assembly comprises a steel ring (1), and the steel ring (1) is internally provided with the cooling chamber (2).

3. A cure press with a steam chamber as defined in claim 1, wherein The cooling medium is water, oil or gas.

4. The mold with a steam chamber according to claim 1, wherein The cooling chamber (2) is close to the mould cavity surface inside the mould cavity assembly.

5. The mold with a steam chamber according to claim 1, wherein The cooling chamber (2) is internally provided with a plurality of baffles (14), and the baffles (14) make the cooling chamber (2) form a baffle chamber.

6. A cure press with a steam chamber as defined in claim 5, wherein The adjacent baffles (14) are alternately connected to the inner ring side wall of the cooling chamber (2) and the outer ring side wall of the cooling chamber (2).

7. A cure press with a steam chamber as defined in claim 2, wherein The medium inlet and outlet channel is arranged below the cooling chamber (2) at the communication end of the cooling chamber (2). The other end of the medium inlet and outlet channel is arranged on the inner side wall of the steel ring (1).

8. A cure press with a steam chamber as defined in claim 2, wherein The steel ring (1) is internally provided with a chamber ring groove on the side away from the mould cavity surface, and the chamber ring groove is connected with a sealing cover plate (11) for sealing the chamber ring groove.

9. A cure press with a steam chamber as defined in claim 2, wherein The steel ring (1) is internally provided with a mounting ring groove on the side away from the mould cavity surface, and the mounting ring groove is connected with a split steel ring (13), and the split steel ring (13) is internally provided with a split ring groove, and the split ring groove is internally provided with a split cover plate (12) for sealing the split ring groove.

10. The mold with a steam chamber according to claim 2, wherein The steel ring (1) is connected with a secondary steel ring (5), and the secondary steel ring (5) and the chuck (6) can clamp the clamping edge of the capsule.

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