Tire vulcanization equipment

Abstract

The utility model discloses tire vulcanizing equipment, which relates to the field of tire vulcanizing production equipment and comprises a vulcanizing bladder, a central rod, a heating device, a rotating device and a temperature detecting element. According to the utility model, the installation position of the temperature detection element in the tire vulcanization equipment is designed, the hollow center rod is used for arranging and connecting the cable, or the supporting frame structure on the ring seat is used for fixing the cable protection pipe, so that the influence of a rotating device on the arrangement of the cable of the temperature detection element is avoided; the temperature detection element is arranged at the position, close to the vent hole of the center rod, in the curing bladder and is also located on the circulating flow path of the gas medium in the curing bladder, the detection precision and sensitivity of the temperature of the whole gas medium in the bladder are improved, and the detection result is more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire vulcanization production equipment field, concretely relates to a tire vulcanization equipment. BACKGROUND

[0002] The vulcanization process can be used to improve the hardness of rubber in industrial production, and rubber is one of the main materials of tires, and the green tire supported by rubber is prone to deformation and low in strength before being subjected to vulcanization treatment. After vulcanization, the rubber is solidified and has high strength and elasticity. Therefore, the vulcanization process of the tire is essential in the manufacture of the tire.

[0003] Tire vulcanization is a process in which an unvulcanized green tire is placed between a sealed vulcanization capsule and a tire mold during tire manufacturing, high-temperature and high-pressure gas is then introduced into the vulcanization capsule, the vulcanization capsule is rapidly inflated, thereby continuously pressing the green tire to tightly adhere to the tire mold, and the green tire is heated to achieve shaping and vulcanization.

[0004] In the existing vulcanization process, an electric vulcanization device is introduced, which includes a heating device, an air supply device, and a rotating device. The heating device arranged inside the vulcanization capsule directly heats the introduced gas medium, and the rotating device also arranged inside the capsule forcibly drives the circulation of the gas medium inside the capsule, achieving uniform heating. However, in the prior art, the interior of the vulcanization capsule is filled with heating medium, and the rotating device and the heating device are also located in the closed chamber, and the rotating device is in a rotating state. Therefore, it is very difficult to install temperature detection elements and cables inside the capsule, and the detection elements are often placed away from the central rod, resulting in a lack of effective and accurate temperature detection inside the capsule, which can cause over-temperature or excessively low temperature inside the capsule during tire vulcanization, affecting the quality and efficiency of tire vulcanization.

[0005] To overcome the above-mentioned problems of the prior art, the utility model designs a tire vulcanization equipment. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a tire vulcanization equipment, the central rod of the vulcanization equipment is designed as a hollow and breathable structure, and a temperature detection element is arranged on the path of the circulation of the central rod in the interior of the vulcanization capsule, so that the vulcanization temperature detection is more accurate and sensitive, the heating device can be controlled in time, the heating power can be adjusted according to the temperature requirement, and the quality and efficiency of tire vulcanization are improved.

[0007] The utility model provides a tire vulcanization equipment, which is characterized by comprising:

[0008] A vulcanization capsule, an upper clamping edge of the vulcanization capsule is connected with an upper clamping assembly, a lower clamping edge of the vulcanization capsule is connected with a lower clamping assembly;

[0009] A central rod, the central rod is internally hollow, an upper end of the central rod is fixed with the upper clamping assembly and can move up and down relative to the lower clamping assembly, the central rod is arranged in the lower clamping assembly, the hollow structure is arranged as a gas passage, and a plurality of air vents are arranged on an outer peripheral wall of the central rod inside the vulcanization capsule;

[0010] A heating device, the heating device is fixed inside the vulcanization capsule and is used for heating a gas medium entering the inside of the vulcanization capsule from the air vents;

[0011] A rotating device, the rotating device is sleeved on the central rod inside the vulcanization capsule, a gap exists between the rotating device and the central rod, and the rotating device drives the gas medium inside the vulcanization capsule to flow in a cycle;

[0012] A temperature detection element, the temperature detection element is arranged on a path of the gas medium flowing inside the vulcanization capsule and is located at the air vents.

[0013] Preferably, a ring seat is arranged between the central rod and the lower clamping assembly, the heating device is fixed inside the vulcanization capsule through a support frame on the ring seat, the heating device and the rotating device are coaxially arranged along the central rod, the heating device is located above the axial direction of the rotating device, and the central rod is connected with a lifting driving device.

[0014] Preferably, the tire vulcanization equipment further comprises a supporting ring cylinder, and an upper end of the supporting ring cylinder is fixedly connected with the ring seat.

[0015] Preferably, a rotating cylinder is concentrically sleeved inside the supporting ring cylinder, an upper end of the rotating cylinder is arranged in a hole in the ring seat and is connected with the rotating device, a lower end of the rotating cylinder is connected with a rotating driving device, the rotating driving device drives the rotating cylinder to drive the rotating device to rotate around the central rod in the vulcanization capsule, and a bearing is arranged between the rotating cylinder and the supporting ring cylinder.

[0016] Preferably, a first seal is arranged between the upper end of the rotating cylinder and the hole in the ring seat, a second seal is arranged between the lower end of the rotating cylinder and the supporting ring cylinder, a third seal is arranged between the supporting ring cylinder and the lower end of the central rod, and a fourth seal is arranged between the ring seat and the lower clamping assembly.

[0017] Preferably, a first bearing is arranged between the upper end of the rotating cylinder and the ring seat, a second bearing is arranged between the lower end of the rotating cylinder and the supporting ring cylinder, the first bearing and the second bearing are arranged in an axial up-down interval and are located between the first seal and the second seal.

[0018] Preferably, the temperature detecting element is arranged on the outer wall of the central rod in the curing bladder and below the air vent, and a temperature detecting element cable is arranged to extend axially downward through the hollow structure of the central rod, and the lower end of the central rod is provided with a wire outlet hole in the supporting ring, one end of the temperature detecting element cable is connected to the temperature detecting element, and the other end is connected to the control device outside through the wire outlet hole.

[0019] Preferably, a protective tube is fixed to the side wall of the supporting frame, the upper end of the protective tube is arranged in the curing bladder and is screwed with a temperature detecting element, the temperature detecting element faces the air vent, the lower end of the protective tube communicates with the axial channel on the ring seat, one end of a temperature detecting element cable is connected to the temperature detecting element, and the other end is connected to the control device outside through the protective tube and the axial channel, and the lower end of the protective tube and the ring seat are welded and sealed.

[0020] Preferably, the temperature detecting element and the control device are connected wirelessly.

[0021] Preferably, the tire vulcanization equipment further comprises a tire mold that covers the outer side of the tire.

[0022] The tire vulcanization equipment has the advantages that:

[0023] The temperature detecting element is arranged at a position in the tire vulcanization equipment, a cable is arranged through the hollow central rod, or a cable protective tube is fixed to the supporting frame structure on the ring seat, the influence of the rotating device on the arrangement of the temperature detecting element cable is avoided, the temperature detecting element is arranged inside the curing bladder and close to the air vent of the central rod, and is also arranged on the circulating flow path of the gas medium in the curing bladder, the temperature detecting element is less disturbed by the heating device, the detection accuracy and sensitivity of the overall gas medium temperature in the bladder are improved, the detection result is more reliable, the control device can adjust the power of the heating device in time according to the temperature change, and the quality and efficiency of tire vulcanization are improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Figure 1 is a schematic view of a tire vulcanization equipment embodiment 1 of the utility model;

[0025] Figure 2 Figure 2 is an enlarged view of structure A in the tire vulcanization equipment embodiment 1 of the utility model;

[0026] Figure 3 Figure 3 is an enlarged view of structure B in the tire vulcanization equipment embodiment 1 of the utility model;

[0027] Figure 4 Figure 4 is a schematic view of a tire vulcanization equipment embodiment 2 of the utility model.

[0028] In the figure: 1, vulcanization capsule; 2, upper clamping assembly; 3, lower clamping assembly; 4, center rod; 5, vent; 6, heating device; 7, rotating device; 8, temperature detection element; 9, ring seat; 10, support frame; 11, support ring cylinder; 12, rotating cylinder; 13, rotating driving device; 14, first seal; 15, second seal; 16, third seal; 17, fourth seal; 18, first bearing; 19, second bearing; 20, temperature detection element cable; 21, cable outlet hole; 22, protective tube; 23, tire mold; 24, tire; 25, axial channel. DETAILED DESCRIPTION

[0029] The utility model will be further described below in combination with the drawings and examples.

[0030] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the utility model belongs.

[0031] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of a feature, step, operation, device, component and / or their combination.

[0032] In the utility model, the orientation or position relationship indicated by the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom" and the like is the orientation or position relationship shown in the drawings, which is only a relationship word determined for the purpose of describing the structural relationship of components or elements of the utility model, and cannot be understood as a limitation on the utility model.

[0033] In the utility model, the terms such as "fixedly connected", "connected", "connected" and the like should be understood broadly, which means that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific researchers or technicians in the art, the specific meaning of the above terms in the utility model can be determined according to the specific circumstances, and cannot be understood as a limitation on the utility model.

[0034] As described in the background, in the existing vulcanization process, because the vulcanization capsule needs strict sealing with the outside, and the rotating device is also arranged in the capsule, the temperature detection element installation and cable arrangement are difficult, and the temperature inside the capsule cannot be effectively detected, so that the temperature inside the capsule exceeds or is lower than the optimal vulcanization temperature, causing quality problems of tire vulcanization and affecting the efficiency of tire vulcanization.

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings.

[0036] Example 1

[0037] As shown in Figure 1 , Figure 2 and Figure 3 , a tire vulcanization device includes a vulcanization capsule 1, which is a closed space, wherein an upper clamping assembly 2 is connected to the upper clamping edge portion of the vulcanization capsule 1, and a lower clamping assembly 3 is connected to the lower clamping edge portion of the vulcanization capsule 1. High-temperature and high-pressure gas medium, such as pressurized nitrogen, or other inert gas, is introduced into the vulcanization capsule 1. The vulcanization capsule 1 can move up and down and contract and expand under the upper and lower clamping assembly 2.

[0038] The tire vulcanization device includes a center rod 4, the upper end of the center rod 4 passes through the lower clamping assembly 3 and is fixedly connected with the upper clamping assembly 2, and the center rod 4 can move up and down relative to the lower clamping assembly 3, thereby driving the upper clamping assembly 2 to move up and down. The center rod 4 is designed as a hollow structure, and a plurality of air vents 5 are arranged on the outer peripheral wall of the center rod 4 inside the vulcanization capsule 1. The hollow structure of the center rod 4 and the air vents 5 are arranged as a gas medium passage of the vulcanization capsule 1. The pressurized nitrogen can enter from the bottom end of the center rod 4, enter the inside of the vulcanization capsule 1 along the axial hollow structure inside the center rod 4 and the air vents 5, and provide pressure and temperature for the tire 24 vulcanization process. After vulcanization, the gas medium can also flow out through the air vents 5 and the hollow structure of the center rod 4 for recycling.

[0039] A fixed ring seat 9 is arranged between the center rod 4 and the lower clamping assembly 3, the center rod 4 is arranged in the inner hole of the fixed ring seat 9, a heating device 6 is fixed in the inside of the vulcanization capsule 1, the heating device 6 is fixed on the ring seat 9 through a support frame 10, and the heating device 6 can be a resistance heating device or an electromagnetic induction heating device, which is used for heating the gas medium in the inside of the vulcanization capsule 1.

[0040] A rotating device 7 is concentrically arranged on the center rod 4, and there is a gap between the rotating device 7 and the center rod 4. The rotating device 7 rotates around the axis of the center rod 4, drives the gas medium in the inside of the vulcanization capsule 1 to circulate, and the circulation helps to make the temperature of the gas medium in the vulcanization capsule 1 uniform. The rotating device 7 can be arranged as a fan, an impeller or the like.

[0041] The tire vulcanization device further comprises a supporting ring cylinder 11, the upper end of the supporting ring cylinder 11 is fixedly connected with the ring seat 9, and the lower end of the supporting ring cylinder 11 is connected with the lifting driving device of the center rod 4. The inside of the supporting ring cylinder 11 is concentrically sleeved with a rotating cylinder 12, and bearings are arranged between the supporting ring cylinder 11 and the rotating cylinder 12. The upper end of the rotating cylinder 12 is connected with the rotating device 7, and the lower end of the rotating cylinder 12 is connected with a rotating driving device 13. The rotating driving device 13 drives the rotating cylinder 12 to drive the rotation of the rotating device 7. The rotating driving device 13 can be an electric motor.

[0042] The heating device 6 and the rotating device 7 are coaxially arranged along the center rod 4, and the heating device 6 is located above the rotating device 7. The lifting driving device is connected with the lower end of the center rod 4 to drive the center rod 4 to move up and down in the inside of the vulcanization capsule 1. When the center rod 4 moves upward, the distance between the lower clamping assembly 3 and the upper clamping assembly 2 is increased, so that the radius of the vulcanization capsule 1 is reduced and the vulcanization capsule 1 is contracted. When the center rod 4 moves downward, the distance between the lower clamping assembly 3 and the upper clamping assembly 2 is reduced, the radius of the vulcanization capsule 1 is increased, and the vulcanization capsule 1 is expanded after the gas medium is filled into the vulcanization capsule 1. During the vulcanization operation, the tire 24 to be vulcanized is first placed on the vulcanization capsule 1, then the center rod 4 is lowered, and the vulcanization capsule 1 is rapidly expanded under the filling of high-pressure nitrogen, so that the tire 24 is tightly wrapped on the vulcanization capsule 1.

[0043] A first bearing 18 is arranged between the upper end of the rotating cylinder 12 and the supporting ring cylinder 11, and a second bearing 19 is arranged between the lower end of the rotating cylinder 12 and the supporting ring cylinder 11. The first bearing 18 and the second bearing 19 are arranged in an up-down interval in the axial direction of the rotating cylinder 12, and the first bearing 18 is located above the second bearing 19. The rotating cylinder 12 is guided by the two sets of bearings, and the rotating stability of the rotating cylinder 12 is improved.

[0044] The first sealing 14 is arranged between the upper end of the rotating cylinder 12 and the inner hole of the ring seat 9, and the second sealing 15 is arranged between the lower end of the rotating cylinder 12 and the supporting ring cylinder 11. The first bearing 18 and the second bearing 19 are preferably arranged between the first sealing 14 and the second sealing 15, so that the bearings and the lubricating grease are prevented from being affected by the high-temperature and high-pressure heating medium in the vulcanization capsule 1, the lubricating grease is prevented from being lost due to the impact of the high-pressure medium on the bearing chamber, the service life of the bearings is improved, and the equipment maintenance cycle is prolonged.

[0045] In addition, the third sealing 16 is arranged between the lower end of the center rod 4 and the supporting ring cylinder 11, and the fourth sealing 17 is arranged between the ring seat 9 and the lower clamping assembly 3, so as to prevent the high-temperature and high-pressure gas medium in the inside of the vulcanization capsule 1 from leaking between the center rod 4 and the supporting ring cylinder 11 and between the ring seat 9 and the lower clamping assembly 3, and the stability of the gas medium in the inside of the vulcanization capsule 1 is maintained.

[0046] The tire vulcanization equipment further comprises a temperature detecting element 8 arranged on the outer peripheral wall of the central rod 4 inside the vulcanization capsule 1, below and close to the air vent 5, and in the path of the circulation of the gas inside the vulcanization capsule 1, and connected and sealed with the mounting hole of the outer peripheral wall of the central rod 4, preferably using a threaded seal. The temperature detecting element cable 20 is arranged to extend downward axially through the hollow structure of the central rod 4, and can be reserved with a sufficient length inside the hollow structure to adapt to the lifting of the central rod 4, or the temperature detecting element cable 20 is a telescopic spring wire or the like. The lower end of the central rod 4 is provided with a wire outlet hole 21 on the support ring 11, one end of the temperature detecting element cable 20 is connected with the temperature detecting element 8, and the other end is connected with the external control device through the wire outlet hole 21, and the wire outlet hole 21 is provided with a seal.

[0047] The central rod 4 is driven to move up and down by a lifting driving device. The lifting driving device can be a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0048] The tire vulcanization equipment further comprises a tire mold 23 wrapped outside the tire 24 for shaping the vulcanized tire 24, and a heating assembly can also be arranged in the tire mold 23 to heat the tire 24 from the outside. The tire mold 23 is a split mold comprising an upper mold and a lower mold.

[0049] Embodiment 2

[0050] As shown in Figure 4 , the position arrangement of the temperature detecting element 8 is different from that of embodiment 1, and the remaining technical features are the same as those of embodiment 1.

[0051] The support frame 10 of the tire vulcanization equipment is welded with a protective pipe 22, the upper end of the protective pipe 22 is threadedly sealed and connected with the temperature detecting element 8, the temperature detecting element 8 is located in the air venting range of the air vent 5 inside the vulcanization capsule 1 and directly opposite the air vent 5, the lower end of the protective pipe 22 is welded and sealed with the ring seat 9, the ring seat 9 is provided with an axial channel 25 corresponding to the protective pipe 22, one end of the temperature detecting element cable 20 is connected with the temperature detecting element 8, and the other end is connected with the external control device through the channel of the protective pipe 22 and the axial channel 25.

[0052] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0053] The utility model discloses above although the specific embodiment of the utility model has been described in conjunction with the drawing, is not the limit to the protection scope of the utility model, and the person skilled in the art should understand that on the basis of the technical scheme of the utility model, various modifications or deformation that the person skilled in the art can make without paying creative labour are still within the protection scope of the utility model.

Claims

1. A tire vulcanization apparatus characterized by, The application relates to a tire vulcanization device. The tire vulcanization device comprises a vulcanization capsule (1), an upper clamping component (2) and a lower clamping component (3); a center rod (4) is internally hollow, the upper end of the center rod (4) is fixed with the upper clamping component (2) and can move up and down relative to the lower clamping component (3), the center rod (4) is arranged in the lower clamping component (3), the hollow structure is arranged as a gas passage, and a plurality of air vents (5) are arranged on the outer circumferential wall of the center rod (4) in the interior of the vulcanization capsule (1); a heating device (6) is arranged in the interior of the vulcanization capsule (1) and is used for heating the gas medium entering the interior of the capsule from the air vents (5); a rotating device (7) is arranged on the center rod (4) in the interior of the vulcanization capsule (1) and has a gap with the center rod (4), the rotating device (7) drives the gas medium in the interior of the vulcanization capsule (1) to flow in a cycle; and a temperature detecting element (8) is arranged on the path of the gas medium flowing in the interior of the vulcanization capsule (1) and is located at the air vents (5). The center rod (4) is provided with a ring seat (9) relative to the lower clamping component (3), the heating device (6) is fixed in the interior of the vulcanization capsule (1) through a support frame (10) on the ring seat (9), the heating device (6) and the rotating device (7) are coaxially arranged along the center rod (4), the heating device (6) is located above the axial direction of the rotating device (7), and the center rod (4) is connected with a lifting driving device. The tire vulcanization device further comprises a supporting ring cylinder (11), the upper end of the supporting ring cylinder (11) is fixedly connected with the ring seat (9). A rotating drum (12) is concentrically arranged in the interior of the supporting ring cylinder (11), the upper end of the rotating drum (12) is arranged in the inner hole of the ring seat (9) and is connected with the rotating device (7), the lower end of the rotating drum (12) is connected with a rotating driving device (13), the rotating driving device (13) drives the rotating drum (12) to drive the rotating device (7) to rotate around the center rod (4) in the vulcanization capsule (1), and bearings are arranged between the rotating drum (12) and the supporting ring cylinder (11). A first seal (14) is arranged between the upper end of the rotating drum (12) and the inner hole of the ring seat (9), a second seal (15) is arranged between the lower end of the rotating drum (12) and the supporting ring cylinder (11), a third seal (16) is arranged between the lower end of the center rod (4) and the supporting ring cylinder (11), and a fourth seal (17) is arranged between the ring seat (9) and the lower clamping component (3).

2. A tire curing apparatus as in claim 1 wherein, A first bearing (18) is arranged between the upper end of the rotating drum (12) and the ring seat (9), a second bearing (19) is arranged between the lower end of the rotating drum (12) and the supporting ring cylinder (11), the first bearing (18) and the second bearing (19) are arranged in an axial up-down interval and are located between the first seal (14) and the second seal (15).

3. A tyre vulcanisation apparatus according to claim 2, characterised in that, ​ 4. A tyre vulcanisation apparatus according to claim 3, characterised in that, ​ 5. A tyre vulcanisation apparatus according to claim 4, characterised in that, ​ 6. A tyre vulcanisation apparatus according to claim 5, characterised in that, ​ 7. A tyre vulcanisation apparatus according to claim 6, characterised in that, The temperature detecting element (8) is arranged on the outer wall of the center rod (4) in the vulcanization capsule (1) and below the air vent (5), and the temperature detecting element cable (20) is arranged to extend axially downward through the hollow structure of the center rod (4), the lower end of the center rod (4) is provided with a wire outlet hole (21) on the supporting ring (11), one end of the temperature detecting element cable (20) is connected with the temperature detecting element (8), and the other end is connected with the external control device through the wire outlet hole (21), and the wire outlet hole (21) is provided with a sealing structure.

8. A tire curing apparatus as defined in claim 6 wherein, The side wall of the supporting frame (10) is fixed with a protection pipe (22), the upper end of the protection pipe (22) is arranged in the vulcanization capsule (1) and is threadedly connected with the temperature detecting element (8), the temperature detecting element (8) is opposite to the air vent (5), the lower end of the protection pipe (22) is communicated with the axial channel (25) on the ring seat (9), one end of the temperature detecting element cable (20) is connected with the temperature detecting element (8), and the other end is connected with the external control device through the protection pipe (22) and the axial channel (25), and the lower end of the protection pipe (22) and the ring seat (9) are welded and sealed.

9. A tire curing apparatus as defined in claim 1 wherein, The temperature detecting element (8) is connected with the control device through wireless connection.

10. A tyre vulcanisation apparatus according to any one of claims 1 to 9, characterised in that, A tire mold (23) is further arranged, and the tire mold (23) covers the outer side of the tire (24).

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