A vulcanizing device for all-steel radial tires

Abstract

This utility model discloses a vulcanizing device for an all-steel radial tire, including a mold, a heating sleeve, a heating plate, and a cylinder head; the heating sleeve is disposed around the circumference of the mold; the heating plate is disposed on the end face of the mold, the heating plate is a circular plate structure, and the side of the heating plate in contact with the mold is provided with several heating zones, each of which is provided with a corresponding temperature sensor; the cylinder head is disposed extending into the inner diameter of the mold, on the side of the cylinder head away from the inside of the mold, the cylinder head is provided with independent recovery air passages and air inlet passages, and the circumferential sidewall of the cylinder head is evenly spaced with several air holes that are biased towards the bottom of the inner wall of the mold for air outlet.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization equipment, and in particular to a vulcanization device for all-steel radial tires. Background Technology

[0002] In the steel industry, most vulcanization processes use a "steam + nitrogen" vulcanization process. This process consumes a lot of steam and is prone to quality problems caused by steam leakage.

[0003] To reduce energy consumption during tire production and improve vulcanization stability, the research and application of new energy electric heating in vulcanization processes has become a new research direction in the industry.

[0004] During the process of electric heating + hot nitrogen vulcanization of all-steel radial tires, the vulcanization of the upper and lower molds may differ. Since the tire is not a completely symmetrical structure during manufacturing, uneven vulcanization of the upper and lower molds may result in defective products. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a vulcanization device for all-steel radial tires, a device that can solve the problem of uneven vulcanization of all-steel radial tires.

[0006] The objective of this utility model is achieved through the following technical solution: a vulcanizing device for an all-steel radial tire, comprising a mold, a heating mold sleeve, a heating plate, and a cylinder head; the heating mold sleeve is disposed around the circumference of the mold; the heating plate is disposed on the end face of the mold, the heating plate having a circular annular plate structure, and the side of the heating plate in contact with the mold having a plurality of heating zones, each heating zone having a corresponding temperature sensor; the cylinder head is disposed extending into the inner diameter of the mold, the side of the cylinder head away from the interior of the mold having independent recovery air passages and intake air passages, and the circumferential sidewall of the cylinder head having a plurality of air holes evenly spaced and biased towards the bottom of the inner wall of the mold for air outlet.

[0007] The present invention is further configured such that the air outlet angle of the air hole forms an angle of ten to twenty degrees with the top surface of the cylinder head.

[0008] The present invention is further configured such that: the air hole includes a first air hole and a second air hole, the first air hole is closer to the top of the cylinder head, and the first air hole and the second air hole are arranged in pairs close to each other.

[0009] The present invention is further configured such that: the axis of the first air hole forms an angle of 10 to 20 degrees with the circumferential plane of the cylinder head, and the axis of the first air hole also forms an angle of 40 to 50 degrees with the axial plane of the cylinder head.

[0010] The present invention is further configured such that: the axis of the second air hole forms an angle of 10 to 20 degrees with the circumferential plane of the cylinder head, and the axis of the second air hole also forms an angle of 40 to 50 degrees with the axial plane of the cylinder head.

[0011] The present invention has the following beneficial effects: the internal temperature is supplied by nitrogen gas circulated by an electromagnetic heater, and with the redesign of the cylinder head, the injection direction of the cylinder head injection holes is all directed towards the shoulder of the lower mold, which reduces the difference in the temperature rise rate of the vulcanization degree of the upper and lower molds of the tire. Attached Figure Description

[0012] Figure 1 This is an assembly drawing of an embodiment of this utility model;

[0013] Figure 2 This is a partial cross-sectional view of the first pore in an embodiment of this utility model;

[0014] Figure 3 This is a partial cross-sectional view of the second pore in an embodiment of this utility model;

[0015] Figure 4 This is a rotating cross-sectional view of the cylinder head in an embodiment of this utility model;

[0016] Figure 5 This is a schematic diagram of the cylinder head structure in an embodiment of this utility model;

[0017] Figure 6 This is a schematic diagram of the heating plate structure in an embodiment of this utility model.

[0018] In the picture:

[0019] 1. Heating plate; 11. First heating zone; 12. Second heating zone; 13. Third heating zone; 14. First sensor; 15. Second sensor; 16. Third sensor;

[0020] 2. Cylinder head; 21. First air port; 22. Second air port; 23. Intake manifold; 24. Recovery manifold; 25. Circumferential plane; 26. Axial plane;

[0021] 3. Mold;

[0022] 4. Heating mold sleeve. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below, but the scope of protection of the present invention is not limited to the following description.

[0030] like Figure 1 As shown, a vulcanizing device for an all-steel radial tire includes a mold 3, a heating mold sleeve 4, a heating plate 1, and a cylinder head 2. The mold 3 forms an enclosure that covers the tire inside the mold 3, and the heating plate 1 heats the mold 3 to achieve the vulcanization process.

[0031] The heating sleeve 4 is set around the mold 3 to heat the tire tread area.

[0032] Heating plate 1 is set on the end face of mold 3. Heating plate 1 is a circular plate structure. The side of heating plate 1 that contacts mold 3 is provided with several heating zones. Each heating zone is provided with a corresponding temperature sensor.

[0033] As a preferred option: such as Figure 6 As shown, the heating plate 1 includes a central through hole for injecting hot nitrogen gas through the cylinder head 2. The annular surface of the heating plate 1 includes a first heating zone 11 on the outermost layer, a second heating zone 12 in the middle layer, and a third heater on the innermost layer. The first heating zone 11 is equipped with a first sensor 14, the second heating zone 12 is equipped with a second sensor 15, and the third heating zone 13 is equipped with a third sensor 16. The first sensor 14, the second sensor 15, and the third sensor 16 are all ordinary temperature sensors. Since the first heating zone 11, the second heating zone 12, and the third heating zone 13 are all annular, each heating zone is divided into at least four sector areas. The sensors are not located in the same sector area, or they can be evenly distributed.

[0034] By setting heating temperatures in different zones, the goal of synchronizing the vulcanization speed of rubber compounds in different thickness areas of the tire can be achieved.

[0035] The cylinder head 2 is set at the inner diameter of the mold 3. The side of the cylinder head 2 away from the inside of the mold 3 is provided with independent recovery air passage 24 and air inlet passage 23. The circumferential side wall of the cylinder head 2 is evenly spaced with a number of air holes that are biased towards the bottom of the inner wall of the mold 3 for air outlet.

[0036] The air outlet angle is 10 to 20 degrees with the top surface of cylinder head 2.

[0037] As a preferred option, the air outlet angle of the air vent is 15 degrees from the cylinder head 2 towards the lower mold body.

[0038] The vents include a first vent 21 and a second vent 22, with the first vent 21 being closer to the top of the cylinder head 2.

[0039] like Figure 5 As shown, the first vent 21 and the second vent 22 are arranged close together in pairs.

[0040] The axis of the first air hole 21 forms an angle of 10 to 20 degrees with the circumferential plane 25 of the cylinder head 2, and the axis of the first air hole 21 also forms an angle of 40 to 50 degrees with the axial plane 26 of the cylinder head 2.

[0041] The axis of the second air hole 22 forms an angle of 10 to 20 degrees with the circumferential plane 25 of the cylinder head 2, and the axis of the second air hole 22 also forms an angle of 40 to 50 degrees with the axial plane 26 of the cylinder head 2.

[0042] like Figure 1 As shown, the above-mentioned arrangement of the first vent 21 and the second vent 22 can form a circulating spiral heating direction, and can make the hot nitrogen gas rotate and tumble evenly. The oblique air outlet can form a spiral return air effect, and finally converge at the return air hole to form a good circulation to ensure a uniform vulcanization effect.

[0043] Preferably, the axis of the first air hole 21 forms a 15-degree angle with the circumferential plane 25 of the cylinder head 2, and the axis of the first air hole 21 also forms a 45-degree angle with the axial plane 26 of the cylinder head 2.

[0044] The axis of the second air hole 22 forms a 15-degree angle with the circumferential plane 25 of the cylinder head 2, and the axis of the second air hole 22 also forms a 45-degree angle with the axial plane 26 of the cylinder head 2.

[0045] As a preferred embodiment, a return air hole is provided on one side of the cylinder head 2, and several air holes are evenly spaced along the axial direction of the side of the cylinder head 2.

[0046] As a preferred embodiment, the number of vents is preferably 8 groups, with 16 vent positions, and the first vent 21 and the second vent 22 are both 8 mm injection holes.

[0047] In this specification, any parts not described are not related to existing technology and will not be elaborated upon. For example, the connection between the cylinder head 2 and the hot nitrogen pump, the hot nitrogen pump and other equipment and controllers that do not involve the improvement points of this utility model will not be elaborated upon.

[0048] The present invention has the following beneficial effects: the internal temperature is supplied by nitrogen gas after being heated by an electromagnetic heater. With the redesign of cylinder head 2, the injection direction of the injection holes of cylinder head 2 is all directed towards the shoulder of the lower mold, which reduces the difference in the heating rate of the vulcanization degree of the upper and lower molds of the tire.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vulcanizing device for an all-steel radial tire, characterized in that: Mold (3); Heating sleeve (4), a heating sleeve (4) disposed around the mold (3); A heating plate (1) is disposed on the end face of the mold (3). The heating plate (1) is a circular plate structure. The side of the heating plate (1) that contacts the mold (3) is provided with several heating zones. Each heating zone is provided with a corresponding temperature sensor. The cylinder head (2) is installed inside the mold (3). The cylinder head (2) is located on the side away from the inside of the mold (3). The cylinder head (2) is provided with independent recovery air passage (24) and air inlet passage (23). The circumferential sidewall of the cylinder head (2) is provided with a number of air holes that are biased towards the bottom of the inner wall of the mold (3) for air outlet.

2. The vulcanization apparatus for all-steel radial tires according to claim 1, characterized in that: The air outlet angle of the air vent forms an angle of ten to twenty degrees with the top surface of the cylinder head (2).

3. The vulcanizing apparatus for an all-steel radial tire according to claim 1 or 2, characterized in that: The vents include a first vent (21) and a second vent (22). The first vent (21) is closer to the top of the cylinder head (2). The first vent (21) and the second vent (22) are arranged in pairs close to each other.

4. The vulcanizing device for an all-steel radial tire according to claim 3, characterized in that: The axis of the first air hole (21) forms an angle of 10 to 20 degrees with the circumferential plane (25) of the cylinder head (2), and the axis of the first air hole (21) also forms an angle of 40 to 50 degrees with the axial plane (26) of the cylinder head (2).

5. The vulcanizing device for an all-steel radial tire according to claim 3, characterized in that: The axis of the second air hole (22) forms an angle of 10 to 20 degrees with the circumferential plane (25) of the cylinder head (2), and the axis of the second air hole (22) also forms an angle of 40 to 50 degrees with the axial plane (26) of the cylinder head (2).

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