Variable temperature control tire vulcanizing mold

Abstract

The invention discloses a variable temperature control tire vulcanization mold, and relates to the technical field of tire production, the variable temperature control tire vulcanization mold comprises a pattern block, an upper side plate and a lower side plate, the upper side plate and the lower side plate are symmetrically arranged on the upper side and the lower side of the pattern block, and the pattern block is fixedly connected with the upper side plate and the lower side plate through a plurality of bolts; the pattern blocks are arranged on the upper side plate and the lower side plate, cavities used for containing tire blanks are formed in the connecting positions of the pattern blocks and the upper side plate and the connecting positions of the pattern blocks and the lower side plate, the heating assembly is arranged on the outer side of the tire side of the tire blanks, and the temperature measuring assembly is arranged on one side of the heating assembly. A heating medium is changed from steam and hot water into electricity, heat-resistant materials are added according to the positions of all parts of the tire, temperature change control over all the parts in the tire vulcanization process is conveniently achieved, in the vulcanization heating process, temperature rise of all the parts of the tire is uniform, temperature difference between the upper tire side and the lower tire side is avoided, the heating speed is high, the tire vulcanization time can be greatly shortened, and the tire vulcanization efficiency is improved. The production quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, in particular to a mold for controlling vulcanized tires with variable temperature. Background Art

[0002] The tire needs to be heated in a fixed mold to form the required structure. The existing technology often heats the mold through media such as steam or hot water to provide heat for tire vulcanization. However, the above method of providing heat has problems such as long heating mold time and large heat loss. At the same time, the temperature of each part of the tire mold cannot be adjusted according to the characteristics of the rubber of each component of the tire, and the vulcanization degree of each component of the tire cannot be effectively controlled, so it is impossible to obtain a higher performance tire. Therefore, it is necessary to study the mold modification to address the above problems.

[0003] Based on this, a variable temperature controlled vulcanized tire mold is now provided, which can eliminate the disadvantages of the prior art solutions. Summary of the invention

[0004] The purpose of the present invention is to provide a mold for controlling the vulcanization of a tire with variable temperature, so as to solve the problem in the background technology that the temperature of each part of the tire mold cannot be adjusted, resulting in the inability to effectively control the vulcanization degree of each tire component.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mold for a variable temperature controlled vulcanized tire, comprising a pattern block, an upper side plate, and a lower side plate, wherein the upper side plate and the lower side plate are symmetrically arranged on the upper and lower sides of the pattern block, the pattern block is fixedly connected to the upper side plate and the lower side plate by a plurality of bolts, and a cavity for placing a tire embryo is formed at the connection position between the pattern block and the upper side plate and the lower side plate;

[0007] It also includes a heating component and a temperature measuring component. The heating component is arranged on the outer side of the tire embryo and is used to adjust the temperature of various parts of the tire mold. The temperature measuring component is arranged on one side of the heating component and is used to control the temperature of various parts of the tire in real time.

[0008] The heating assembly includes an upper heating plate, a lower heating plate and a side heating plate, the upper heating plate is arranged at the upper end of the upper side plate, the lower heating plate is arranged at the lower end of the lower side plate, and the side heating plate is arranged on the side of the pattern block away from the chamber, and a heating unit is arranged on one side of the upper heating plate, the lower heating plate and the side heating plate.

[0009] Preferably, the heating unit comprises a plurality of electric heating elements, and the plurality of electric heating elements are arranged along the circumference of the tire mold.

[0010] Preferably, the temperature measuring component comprises a plurality of placement holes, each of which is provided with a temperature measuring element, and the placement holes are arranged on a side of the upper side plate, the lower side plate and the pattern block away from the cavity.

[0011] Preferably, a bow-shaped seat is provided on one side of the pattern block, an upper cover is provided at the upper end of the upper side plate, and a lower cover is provided at the lower end of the lower side plate, and the surfaces of the upper cover, lower cover and bow-shaped seat are all provided with mounting grooves for placing corresponding heating plates.

[0012] Preferably, a middle mold sleeve is provided on a side of the arch seat away from the pattern block, a heat preservation layer is provided on the outer side of the middle mold sleeve, and a heat preservation cover is provided on the outer side of the heat preservation layer.

[0013] Preferably, the upper cover, the lower cover and the middle mold sleeve are all made of heat-resistant material, and the thermal conductivity of the heat-resistant material is smaller than the thermal conductivity of the tire embryo.

[0014] Preferably, the heating unit is detachably connected to the upper side plate, the lower side plate and the bow-shaped seat.

[0015] Preferably, a heat insulating member is provided between the electric heating element and the upper side plate.

[0016] Preferably, sealing gaskets are provided at the connection positions between the pattern block and the upper side plate and the lower side plate.

[0017] Preferably, a temperature controller is provided on one side of the tire mold, and the temperature controller is electrically connected to the electric heating element and the temperature measuring element.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a mold for controlling the vulcanization of a tire with variable temperature, changes the heating medium from steam and hot water to electricity, and adds heat-resistant materials according to the positions of various tire components to achieve variable temperature control of various components during the vulcanization process of the tire. During the vulcanization heating process, the temperature of various parts of the tire rises evenly, and no temperature difference is generated in the upper and lower sidewalls, which can solve the problems of long hot mold time and large heat loss of ordinary molds, facilitates variable temperature process control of various components, and obtains higher performance tires. In addition, there is no need to introduce heat transfer media such as steam during the vulcanization stage, which greatly reduces the problem of energy waste. In addition, electric heating has high efficiency and fast heating speed, which can greatly shorten the vulcanization time of the tire and improve production quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the present invention.

[0022] Figure 3 For the present invention Figure 2 A magnified schematic diagram of center A.

[0023] Figure 4 This is a schematic diagram of the structure of Example 2 of the present invention.

[0024] Notes on figure marks: pattern block 1, upper side plate 2, lower side plate 3, chamber 4, upper heating plate 5, lower heating plate 6, side heating plate 7, electric heating element 8, placement hole 9, temperature measuring element 10, bow seat 11, upper cover 12, lower cover 13, middle mold sleeve 14, insulation layer 15, thermal insulation part 16, temperature controller 17. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] In this embodiment, if Figure 1-Figure 3 As shown, a mold for a variable temperature controlled vulcanized tire comprises a pattern block 1, an upper side plate 2, and a lower side plate 3. The pattern block 1, the upper side plate 2, and the lower side plate 3 are all integrated structures to ensure the airtightness of the mold, so that the rubber cannot penetrate through the interface, thereby avoiding the occurrence of a rubber edge phenomenon. The upper side plate 2 and the lower side plate 3 are symmetrically arranged on the upper and lower sides of the pattern block 1. The pattern block 1 is fixedly connected to the upper side plate 2 and the lower side plate 3 by a plurality of bolts. The pattern block 1 is further fitted to the side plate by bolts to reduce the gap generated at the connection, thereby reducing the overflow of the rubber during the extrusion process, which is beneficial to the vulcanization processing operation of the tire, and a cavity 4 for placing a tire embryo is formed at the connection position between the pattern block 1 and the upper side plate 2 and the lower side plate 3;

[0028] It also includes a heating component and a temperature measuring component. The heating component is arranged on the outer side of the tire embryo and is used to adjust the temperature of various parts of the tire mold. The temperature measuring component is arranged on one side of the heating component and is used to control the temperature of various parts of the tire in real time, so as to facilitate timely adjustment of the heating component and ensure the overall practicality of the mold.

[0029] The heating assembly includes an upper heating plate 5, a lower heating plate 6 and a side heating plate 7. The upper heating plate 5 is arranged at the upper end of the upper side plate 2, the lower heating plate 6 is arranged at the lower end of the lower side plate 3, and the side heating plate 7 is arranged on the side of the pattern block 1 away from the chamber 4. The upper heating plate 5, the lower heating plate 6 and the side heating plate 7 are all provided with heating units on one side to reduce the distance from the vulcanized tire. Insulation plates can be provided between the heating units to facilitate dividing the mold into multiple heating zones, realizing temperature zoning control at different positions of the tire, shortening the vulcanization time and improving the tire vulcanization efficiency.

[0030] Among them Figure 2 and Figure 3 As shown, the heating unit includes a plurality of electric heating elements 8, which can be configured as electric heating coils, resistance heating coils, and electromagnetic induction heating coils. The plurality of electric heating elements 8 are arranged along the circumference of the tire mold. The electric heating elements 8 are evenly arranged, and the heating position is close to the vulcanized tire, so the heat conduction efficiency is high, which facilitates ensuring the stability of heating.

[0031] Among them Figure 2 and Figure 3 As shown, the temperature measuring component includes a plurality of placement holes 9, each of which is provided with a temperature measuring element 10, which is buried in the placement hole 9. The temperature signal fed back by the temperature measuring element 10 is transmitted to an external temperature display through a wire. The tire surface temperature is calculated based on the real-time temperature of the temperature display by a heat conduction calculation formula. When the vulcanization temperature is lower than the required temperature, the electric heating element 8 is heated, and the actual temperature is sent to the temperature display in real time through the temperature measuring element 10. The placement hole 9 is arranged on the side of the upper side plate 2, the lower side plate 3 and the pattern block 1 away from the cavity 4. The distance between the temperature measuring element 10 and the cavity surface of the cavity 4 is about 15 mm, which is convenient for accurately calculating the tire surface temperature.

[0032] Among them Figure 1 and Figure 2 As shown, a bow-shaped seat 11 is provided on one side of the pattern block 1, an upper cover 12 is provided on the upper end of the upper side plate 2, and a lower cover 13 is provided on the lower end of the lower side plate 3. The above components can be connected by bolts for easy disassembly, and the surfaces of the upper cover 12, the lower cover 13 and the bow-shaped seat 11 are provided with mounting grooves for placing corresponding heating plates to ensure the overall practicality of the mold.

[0033] Among them Figure 1 As shown, a middle mold sleeve 14 is provided on the side of the arch seat 11 away from the pattern block 1, an outer sleeve of the middle mold sleeve 14 is provided with a heat preservation layer 15, and a heat preservation cover is provided on the outer side of the heat preservation layer 15, so as to reduce the heat loss of the heating unit at the pattern block 1 and save energy and reduce consumption.

[0034] Among them Figure 1 As shown, the upper cover 12, the lower cover 13 and the middle mold sleeve 14 are all set to heat-resistant materials to reduce the heat loss of the heating units at the upper side plate 2 and the lower side plate 3, save energy and reduce consumption, and the thermal conductivity of the heat-resistant material is smaller than the thermal conductivity of the tire embryo.

[0035] Among them Figure 1 and Figure 2 As shown, the heating unit is detachably connected to the upper side plate 2, the lower side plate 3, and the bow-shaped seat 11, so that the heating unit can be replaced individually, avoiding the need for overall replacement and reducing production costs.

[0036] Among them Figure 3As shown, a heat insulating member 16 is arranged between the electric heating element 8 and the upper side plate 2. The heat insulating member 16 can be made of environmentally friendly heat insulating materials such as aerogel and hard heat insulating materials, so as to further reduce the heat transfer between the heating unit and the upper side plate 2, the lower side plate 3, and the bow seat 11.

[0037] Among them Figure 1 and Figure 2 As shown, sealing pads are provided at the connection positions between the pattern block 1 and the upper side plate 2 and the lower side plate 3 to increase the overall sealing effect of the mold.

[0038] Example 2

[0039] The difference from Example 1 is that Figure 4 As shown, a temperature controller 17 is provided on one side of the tire mold. The temperature controller 17 is electrically connected to the electric heating element 8 and the temperature measuring element 10 to facilitate accurate reading and monitoring of data. The temperature controller 17 is a component commonly used in the market and can realize the specific functions in this application. The temperature controller 17 includes a temperature sensor, a temperature display, etc., which can be selected and adjusted according to actual needs.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A mold for a variable temperature controlled vulcanized tire, comprising a pattern block (1), an upper side plate (2), and a lower side plate (3), wherein the upper side plate (2) and the lower side plate (3) are symmetrically arranged on the upper and lower sides of the pattern block (1), the pattern block (1) is fixedly connected to the upper side plate (2) and the lower side plate (3) by a plurality of bolts, and a cavity (4) for placing a tire embryo is formed at the connection position between the pattern block (1) and the upper side plate (2) and the lower side plate (3); It is characterized in that It also includes a heating component, which is arranged on the outer side of the tire blank and is used to adjust the temperature of various parts of the tire mold; A temperature measuring component, which is arranged on one side of the heating component and is used to control the temperature of various components of the tire in real time; The heating assembly comprises an upper heating plate (5), a lower heating plate (6) and a side heating plate (7); the upper heating plate (5) is arranged at the upper end of the upper side plate (2); the lower heating plate (6) is arranged at the lower end of the lower side plate (3); the side heating plate (7) is arranged on a side of the pattern block (1) away from the chamber (4); and a heating unit is arranged on one side of the upper heating plate (5), the lower heating plate (6) and the side heating plate (7).

2. The mold for variable temperature controlled vulcanized tire according to claim 1, characterized in that: The heating unit comprises a plurality of electric heating elements (8), and the plurality of electric heating elements (8) are arranged along the circumference of the tire mold.

3. The mold for variable temperature controlled vulcanized tire according to claim 2, characterized in that: The temperature measuring component comprises a plurality of placement holes (9), each of which is provided with a temperature measuring element (10), and the placement holes (9) are arranged on a side of the upper side plate (2), the lower side plate (3) and the pattern block (1) away from the chamber (4).

4. The mold for variable temperature controlled vulcanized tire according to claim 2, characterized in that: A bow-shaped seat (11) is provided on one side of the pattern block (1), an upper cover (12) is provided at the upper end of the upper side plate (2), and a lower cover (13) is provided at the lower end of the lower side plate (3); and surfaces of the upper cover (12), the lower cover (13) and the bow-shaped seat (11) are all provided with mounting grooves for placing corresponding heating plates.

5. The mold for variable temperature controlled vulcanized tire according to claim 4, characterized in that: A middle mold sleeve (14) is provided on the side of the arch seat (11) away from the pattern block (1), a heat preservation layer (15) is provided on the outer side of the middle mold sleeve (14), and a heat preservation cover is provided on the outer side of the heat preservation layer (15).

6. The mold for controlling the vulcanization of a variable temperature tire according to claim 5, characterized in that: The upper cover (12), the lower cover (13) and the middle mold sleeve (14) are all configured as heat-resistant materials, and the thermal conductivity of the heat-resistant materials is smaller than the thermal conductivity of the tire embryo.

7. The mold for variable temperature controlled vulcanized tire according to claim 4, characterized in that: The heating unit is detachably connected to the upper side plate (2), the lower side plate (3) and the bow-shaped seat (11).

8. The mold for controlling the vulcanization of a variable temperature tire according to claim 2, characterized in that: A heat insulating member (16) is provided between the electric heating element (8) and the upper side plate (2).

9. The mold for variable temperature controlled vulcanized tire according to claim 1, characterized in that: Sealing pads are provided at the connection positions between the pattern block (1) and the upper side plate (2) and the lower side plate (3).

10. The mold for controlling the vulcanization of a variable temperature tire according to claim 3, characterized in that: A temperature controller (17) is provided on one side of the tire mold, and the temperature controller (17) is electrically connected to the electric heating element (8) and the temperature measuring element (10).

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