CN211542038U

CN211542038U - Novel inner tube of a tyre vulcanizes device

Info

Publication number: CN211542038U
Application number: CN201921623514.7U
Authority: CN
Inventors: 鄢景森; 赵光; 王泽青; 鄂永胜; 朱克刚
Original assignee: Chaoyang Huaxing Wanda Tire Co ltd; Liaoning Institute of Science and Technology
Current assignee: Chaoyang Huaxing Wanda Tire Co ltd; Liaoning Institute of Science and Technology
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-09-22
Anticipated expiration: 2029-09-26

Abstract

A novel inner tube vulcanizing device. The method comprises the following steps: the first mould is provided with a first inner cavity, and a heating device is arranged in the mould; the second mould is positioned below the first mould, is provided with a second inner cavity for accommodating the inner tube together with the first inner cavity, and is internally provided with a heating device; the air pressure control assembly is arranged in a second inner cavity of the second mold and comprises a vent nozzle and a vent pipe connected with the vent nozzle, and the vent pipe comprises a first part and a second part which are separated by a partition plate and are communicated with the inner tube; and a pressure control valve located within the second portion of the vent pipe. According to the utility model discloses a novel inner tube of a tyre vulcanizes device it can effectual solution because the inner tube of a tyre internal pressure is unbalanced to lead to vulcanize the defect that the in-process produced the inner tube of a tyre, improves the yield of the inner tube of a tyre vulcanization in-process greatly.

Description

Novel inner tube of a tyre vulcanizes device

Technical Field

The utility model relates to a vulcanizer, concretely relates to novel vulcanizer for inner tube of a tyre vulcanizes.

Background

The inner tube is commonly called the lining tube. The annular elastic tube is used for keeping the internal pressure of the tire and is provided with a tire valve. The valve is used for inflating and keeping air at a certain pressure in the inner tire. The inner tube should have good air tightness, heat resistance, elasticity, aging resistance and small permanent deformation. Typically made of butyl rubber.

The inner tube is an air-filled and vibration-damped air-bearing container, and is used for auxiliary air-bearing containers in the inner cavities of the tires of trucks, motorcycles, bicycles and rickshaw, and can be divided into a natural rubber inner tube and a butyl rubber inner tube according to the main materials contained in the inner tube.

And the inner tire vulcanization and shaping stage is the stage with the highest defective rate of the inner tire. Before vulcanization, the used tire blank is checked whether the length and the flat-folding width after the joint meet the construction standard, particularly whether the joint position and the valve rubber cushion joint position are accurate. 2. The shaping and inflating are slow, so as to ensure the uniform extension of the rubber blank, and particularly, the inner edge of the rubber blank is required to be checked to see whether the inner edge is fully expanded or not. The sizing size is proper. It should not be too large, and easily form folds during vulcanization, and too small, it is easy to produce uneven thickness. 3. The vulcanization and mold filling are accurate and rapid to prevent defective products caused by local excessive heating of the rubber blank.

As can be seen from the above-mentioned considerations, the stage of the inflation shaping process plays a key role in the quality of the tire. Before vulcanization, the inner tube is inflated and shaped by room temperature gas, and in the vulcanization process, the vulcanization temperature is usually above 150 ℃, so that the room temperature gas filled in advance expands at the temperature, and the expansion degree has a certain relation with the room temperature gas temperature and the inflation gas pressure. In northern areas of China, the temperature difference between winter and summer is close to 50 ℃, and under the high temperature difference, the temperature of the pre-inflation gas is greatly changed in different production seasons, so that the quality of tires is unstable.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming of the current inner tube of a tyre vulcanizer, the utility model provides a novel inner tube of a tyre vulcanizer. The method comprises the following steps: the first mould is provided with a first inner cavity, and a heating device is arranged in the mould; the second mould is positioned below the first mould, is provided with a second inner cavity for accommodating the inner tube together with the first inner cavity, and is internally provided with a heating device; the air pressure control assembly is arranged in a second inner cavity of the second mold and comprises a vent nozzle and a vent pipe connected with the vent nozzle, and the vent pipe comprises a first part and a second part which are separated by a partition plate and are communicated with the inner tube; and a pressure control valve located within the second portion of the vent pipe.

According to the utility model discloses an embodiment, first inner chamber has the same space size with the second inner chamber.

According to the utility model discloses an embodiment, the device still includes the subassembly that admits air that is linked together with the first part of atmospheric pressure control subassembly.

According to an embodiment of the invention, the second part is in communication with the outside atmosphere.

According to the utility model discloses an embodiment, first inner chamber and second inner chamber have the cyclic annular cavity structures of semicircle cylinder respectively.

According to the utility model discloses a novel inner tube of a tyre vulcanizes device it can effectual solution because the inner tube of a tyre internal pressure is unbalanced to lead to vulcanize the defect that the in-process produced the inner tube of a tyre, improves the yield of the inner tube of a tyre vulcanization in-process greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a plan view showing a first mold according to the present invention;

fig. 2 is a plan view showing a second mold according to the present invention;

fig. 3 is a schematic view illustrating the opening of the first mold and the second mold according to the present invention;

fig. 4 is a schematic view showing the closing of a first mold and a second mold according to the present invention;

fig. 5 is a schematic diagram illustrating a pneumatic control assembly according to the present invention;

fig. 6 is a sectional view illustrating a pneumatic control assembly according to the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

Fig. 1 is a plan view showing a first mold according to the present invention; fig. 2 is a plan view showing a second mold according to the present invention; fig. 3 is a schematic view illustrating the opening of the first mold and the second mold according to the present invention; fig. 4 is a schematic view showing the closing of a first mold and a second mold according to the present invention; fig. 5 is a schematic diagram illustrating a pneumatic control assembly according to the present invention; fig. 6 is a sectional view illustrating a pneumatic control assembly according to the present invention.

Referring to fig. 1 to 6, the utility model provides a novel inner tube of a tyre vulcanizes device, include: a first mold 110 having a first cavity 111 and a heating device disposed therein; a second mold 120 located below the first mold 110, having a second cavity 121 to accommodate the inner tube together with the first cavity 111, and a heating device is disposed in the mold; an air pressure control assembly 130 disposed in the second cavity 121 of the second mold 120 and including a vent nozzle 131 and a vent tube 132 connected to the vent nozzle, the vent tube 132 including a first portion 1321 and a second portion 1322 separated by a partition 133 and both communicating with the inner tube; and a pressure control valve 1323 located in the second portion 1322 of the vent tube 132.

In addition, the first and

second cavities

111 and 121 have the same spatial dimensions.

In addition, the apparatus includes an air intake assembly (not shown) in communication with the first portion 1321 of the air pressure control assembly 130.

In addition, second portion 1322 is in communication with the outside atmosphere.

In addition, the first inner cavity 111 and the second inner cavity 121 respectively have a semicircular cylindrical annular cavity structure.

The utility model relates to a novel inner tube of a tyre vulcanizer specifically operation process as follows, at first opens the heating device of first mould 110 and second mould 120, heats to predetermined temperature, for example 130 ℃. The first mold 110 and the second mold 120 are separated, as shown in fig. 3, the pre-inflated tire tube to be vulcanized is placed in the second inner cavity 121 of the second mold 120, the air tap of the tire tube to be vulcanized is connected with the air tap 131 of the air pressure control assembly 130 located in the second inner cavity 121, and then the first mold and the second mold are closed, as shown in fig. 4, at this time, the first inner cavity 111 and the second inner cavity 121 form a cylindrical annular cavity structure, and the cylindrical annular cavity structure accommodates the tire tube to be vulcanized. At this time, the air inlet assembly injects high-pressure steam with a predetermined temperature, for example, water vapor with a temperature of 140 ℃ and a pressure of 0.3MPa, into the first portion 1321, and the high-pressure steam enters the inner portion of the tire through the vent nozzle 131 to provide a high temperature required for vulcanizing the tire. As the steam is continuously introduced into the interior of the tire, the pressure inside the tire is continuously increased, and when the pressure inside the tire is higher than the preset pressure of the pressure control valve 1323 located in the second portion 1322 of the vent tube 132, for example, the preset pressure is 0.2MPa, the pressure control valve is opened, so that the high-pressure steam inside the tire is discharged to the atmosphere communicating with the second portion 1322 through the second portion 1322. Since the high-pressure steam inside the inner tube is discharged to the atmosphere communicated with the second portion 1322 through the second portion 1322, the pressure inside the inner tube will decrease, and when the pressure drops below the preset pressure of the pressure control valve 1323, for example, the preset pressure is 0.2MPa, the pressure control valve will be closed, and at this time, the high-pressure steam inside the inner tube cannot be discharged to the atmosphere communicated with the second portion 1322 through the second portion 1322, the pressure inside the inner tube will rise, so that the pressure inside the inner tube is controlled to be in a relatively stable state through the process.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a novel inner tube of a tyre vulcanizer which characterized in that, novel inner tube of a tyre vulcanizer includes:

the first mould is provided with a first inner cavity, and a heating device is arranged in the mould;

the second mould is positioned below the first mould, is provided with a second inner cavity for accommodating the inner tube together with the first inner cavity, and is internally provided with a heating device;

the air pressure control assembly is arranged in a second inner cavity of the second mold and comprises a vent nozzle and a vent pipe connected with the vent nozzle, and the vent pipe comprises a first part and a second part which are separated by a partition plate and are communicated with the inner tube; and

a pressure control valve located within the second portion of the vent pipe.

2. The new tire tube curing apparatus of claim 1 wherein the first interior chamber and the second interior chamber have the same spatial dimensions.

3. The new tire tube curing apparatus of claim 1 further comprising an air intake assembly in communication with the first portion of the air pressure control assembly.

4. The new tire tube curing apparatus of claim 1 wherein said second portion is in communication with the outside atmosphere.

5. The novel inner tube vulcanizing device as claimed in claim 1, wherein the first inner cavity and the second inner cavity respectively have a semicircular cylindrical annular cavity structure.