A tire vulcanization apparatus

Abstract

The utility model discloses a kind of tire vulcanization equipment, it belongs to tire production equipment technical field, including center mechanism;Center mechanism includes ring seat, cylinder, lifting ring connecting plate, center pole, second lifting drive element and first lifting drive element;Cylinder upper end fixedly connected ring seat, lower end fixedly connected lifting ring connecting plate;Center pole is located in cylinder, floating cavity is formed between the two, and the lower portion of floating cavity is equipped with internal pressure inlet and outlet hole;Center pole upper end passes through ring seat, extend to the upside of ring seat, lower end passes through lifting ring connecting plate, and is drivingly connected second lifting drive element;Center pole is processed with communicating cavity inside, communicating cavity extends axially, and upper portion is equipped with for communicating the upper communicating hole of capsule inner cavity, and lower portion is equipped with the lower communicating hole of communicating floating cavity;First lifting drive element is used to drive lifting ring connecting plate to lift, utilize floating cavity, communicating cavity and internal pressure inlet and outlet hole to form gas passage jointly, and the space occupation condition of center mechanism has been improved.

Description

Technical Field

[0001] This utility model relates to the field of tire production equipment technology, specifically to a tire vulcanization equipment. Background Technology

[0002] Rubber tires are vulcanized and molded using a vulcanization process. Specifically, the green tire is placed between a sealed vulcanizing bladder and a vulcanization mold. Heated nitrogen gas is introduced into the vulcanizing bladder, or the nitrogen gas is introduced and then heated inside the vulcanizing bladder. The high-temperature nitrogen gas acts on the inside of the vulcanizing bladder to provide the heat required for vulcanization. At the same time, the nitrogen gas also provides the pressure required for vulcanization. The vulcanizing bladder expands and squeezes the green tire, which, together with the vulcanization mold, shapes and vulcanizes the green tire to improve its strength.

[0003] In existing technologies, a gas channel connecting the inner cavity of the capsule is generally set on the ring seat of the central mechanism. There are usually two gas channels, one for air intake and the other for air exhaust. Both channels are connected to external thermal pipes. Since thermal pipes generally have diameter requirements, two pipes will occupy more space, and the layout of the pipes needs to be considered. Therefore, it is not suitable for central mechanisms that use gas as the internal pressure medium in narrow spaces. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a tire vulcanizing device with an optimized and compact central mechanism structure, suitable for confined spaces.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a tire vulcanizing device, including a central mechanism; the central mechanism includes a ring seat, a cylinder, a lifting ring connecting plate, a central rod, a second lifting drive element, and a first lifting drive element; The upper end of the cylinder is fixedly connected to the ring seat, and the lower end is fixedly connected to the lifting ring connecting plate; The central rod is located inside the cylinder, forming a floating cavity between them. The lower part of the floating cavity is provided with an internal pressure inlet / outlet hole. The upper end of the central rod passes through the central hole of the ring seat and extends to the upper side of the ring seat. The lower end passes through the through hole of the lifting ring connecting plate and is connected to the second lifting drive element. A connecting cavity is machined inside the central rod. The connecting cavity extends axially and has an upper connecting hole at the upper part for connecting to the inner cavity of the capsule and a lower connecting hole at the lower part for connecting to the floating cavity. The first lifting drive element is used to drive the lifting ring connecting plate to rise and fall.

[0006] In the aforementioned tire vulcanizing equipment, the internal pressure inlet / outlet hole is located inside the lifting ring connecting plate and communicates with the through hole.

[0007] In the aforementioned tire vulcanizing equipment, there are multiple upper connecting holes and multiple lower connecting holes, which are evenly spaced along the circumference of the central rod.

[0008] In the aforementioned tire vulcanizing equipment, the lower connecting hole is located at the lower end of the central rod.

[0009] In the above-mentioned tire vulcanizing equipment, the center rod and the center hole of the ring seat form a sliding seal using a first sealing element; And / or, the upper end of the cylinder is sealed to the ring seat using a second sealing element; And / or, the upper end of the through hole is sealed to the lower end of the cylinder using a third sealing element.

[0010] In the above-mentioned tire vulcanizing equipment, the second lifting drive element is fixedly installed on the lifting ring connecting plate, and the second lifting drive element is sealed to the lower end of the through hole by a fourth sealing element.

[0011] In the above-mentioned tire vulcanizing equipment, a drive seat is fixedly connected to the lower side of the lifting ring connecting plate, and the drive seat and the lifting ring connecting plate are spaced apart vertically; the second lifting drive element is fixedly installed on the drive seat, and the telescopic rod of the second lifting drive element extends into the through hole to drive the center rod; A sealing plate is provided at the lower end of the through hole. The sealing plate is sealed to the wall of the through hole by a sixth sealing element. The telescopic rod of the second lifting drive element and the sealing plate are slidably sealed by a fifth sealing element.

[0012] The tire vulcanizing equipment described above also includes a frame, on which a guide seat is fixedly installed. The guide seat has a first guide hole, and the ring seat is slidably disposed within the first guide hole.

[0013] In the above-mentioned tire vulcanizing equipment, the upper end of the cylinder extends into the first guide hole, and a first guide sleeve is provided between the cylinder and the inner wall of the first guide hole.

[0014] In the above-mentioned tire vulcanizing equipment, a plurality of support rods are provided between the lifting ring connecting plate and the ring seat, and a second guide sleeve is provided at the position corresponding to the support rod of the guide seat, and the support rod and the second guide sleeve are slidably engaged.

[0015] The beneficial effects of this utility model are as follows: The central mechanism of the tire vulcanizing equipment utilizes the space between the cylinder and the central rod, the connecting cavity inside the central rod, and the internal pressure inlet and outlet holes in the lifting ring connecting plate to form a gas channel. That is, the internal pressure inlet and outlet holes, the floating cavity, the connecting cavity, the upper connecting hole, and the lower connecting hole are connected to form a gas channel. Since the thermal pipe only needs to be connected to the internal pressure inlet and outlet holes in the lifting ring connecting plate, it does not need to be connected to the ring seat. That is, the connection position between the thermal pipe and the central mechanism is moved down. The structure of the central mechanism of this application is also applicable to situations where the frame space is narrow. The central mechanism is simplified, with a simple structure, easy implementation, low manufacturing cost, and improved space utilization. Meanwhile, the floating cavity extends vertically by a certain length, which is suitable for the lifting and lowering movement of the central rod, ensuring that the gas passage remains unobstructed after the central rod is lifted or lowered; especially when the lower connecting hole is located at the lower end of the central rod, the structure is compact.

[0016] By using a combination of sealing elements, such as the first sealing element and the second sealing element, the gas is ensured to flow along the predetermined path, preventing leakage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a tire vulcanizing equipment; Figure 2 for Figure 1 Side view; Figure 3 for Figure 1 Enlarged view of region A in the middle; Figure 4 for Figure 2 Enlarged view of region D in the middle; Figure 5 This is a schematic diagram of the structure in which the second lifting drive element is connected to the lifting ring connecting plate via the drive base.

[0018] In the picture: 1-Ring seat; 2-Frame; 3-Guide seat; 4-Cylinder; 5-Floating cavity; 6-Center rod; 7-Internal pressure inlet / outlet hole; 8-Second lifting drive element; 9-Lifting ring connecting plate; 10-Connecting cavity; 11-Upper connecting hole; 12-First lifting drive element; 13-Support plate; 14-Support rod; 15-First guide hole; 16-Lower connecting hole; 17-Fourth sealing element; 18-Third sealing element; 19-First guide sleeve; 20-Second guide sleeve; 21-Second sealing element; 22-First sealing element; 23-Sealing plate; 24-Fifth sealing element; 25-Drive seat; 26-Support column; 27-Sixth sealing element. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] A tire vulcanizing device, please refer to Figures 1-4 The system includes a frame 2 and a central mechanism. A guide seat 3 is fixedly mounted on the frame 2. The guide seat 3 has a first guide hole 15, which is a stepped hole that extends through the guide seat 3 from top to bottom; the upper diameter of the hole is larger than the lower diameter. The central mechanism includes a ring seat 1, a cylinder 4, a lifting ring connecting plate 9, a first lifting drive element 12, a second lifting drive element 8, and a central rod 6. The ring seat 1 is located within the first guide hole 15, at the larger end of the first guide hole 15, with a clearance fit; the ring seat 1 can rise and fall relative to the guide seat 3. The upper end of the cylinder 4 extends into the first guide hole 15 and is fixedly connected to the ring seat 1, while the lower end of the cylinder 4 extends downwards out of the guide seat 3 and is connected to the lifting ring connecting plate 9. The ring seat 1 has a central hole, and the lifting ring connecting plate 9 has a through hole. The central hole and the through hole are both set to correspond to the cylinder 4, preferably coaxial. The central rod 6 is located inside the cylinder 4. Its upper end passes through the central hole of the ring seat 1 and extends to the upper side of the ring seat 1, and its lower end passes through the through hole of the lifting ring connecting plate 9 and is connected to the second lifting drive element 8.

[0021] Understandably, the first guide hole 15 inside the guide seat 3 is not limited to a stepped hole, but can also be a through hole, in conjunction with the lifting guide of the ring seat 1.

[0022] The outer diameter of the central rod 6 is smaller than the inner diameter of the cylinder 4, and the space between the outer wall of the central rod 6 and the inner wall of the cylinder 4 forms a floating cavity 5. Preferably, the floating cavity 5 extends along the entire length of the cylinder 4 to accommodate the lifting and lowering movement of the central rod 6. A connecting cavity 10 is machined inside the central rod 6, extending axially along the central rod 6. An upper connecting hole 11 is provided at the upper part of the connecting cavity 10 for connecting to the inner cavity of the capsule, and a lower connecting hole 16 is provided at the lower part of the connecting cavity 10 for connecting to the floating cavity 5. The number of upper connecting holes 11 and lower connecting holes 16 can be one, two, or more. When more than one upper connecting hole 11 and lower connecting hole 16 are provided on the central rod 6, it is preferable that the upper connecting holes 11 and lower connecting holes 16 are evenly spaced along the circumference of the central rod 6. The upper connecting hole 11 can be located anywhere on the upper part of the central rod 6, as long as it is below the upper clamping ring assembly. The upper clamping ring assembly is the structure that clamps the upper edge of the capsule. The upper connecting hole 11 being located below the upper clamping ring assembly allows it to connect to the inner cavity of the capsule. The lower connecting hole 16 can be located anywhere on the central rod 6 within the floating cavity 5 to ensure connection between the floating cavity 5 and the connecting cavity 10. The lower connecting hole 16 is preferably located at the lower end of the central rod 6. Since the floating cavity 5 extends along the entire length of the cylinder 4, even if the central rod 6 moves up and down relative to the cylinder 4 by a certain amount of stroke, the lower connecting hole 16 can ensure that the floating cavity 5 and the connecting cavity 10 maintain effective communication.

[0023] The lifting ring connecting plate 9 is machined with an internal pressure inlet / outlet hole 7, which communicates with the floating cavity 5. In this way, the combination of the cylinder 4 of the central mechanism, the lifting ring connecting plate 9 and the central rod 6 can realize the intake and exhaust of the capsule; that is, the internal pressure inlet / outlet hole 7, the floating cavity 5, the lower connecting hole 16, the connecting cavity 10 and the upper connecting hole 11 are connected in sequence to form a gas channel; reducing space occupation and making the structure compact.

[0024] Correspondingly, the center rod 6 and the ring seat 1 form a sliding seal using the first sealing element 22, the upper end of the cylinder 4 and the ring seat 1 form a seal using the second sealing element 21, and the lifting ring connecting plate 9 and the lower end of the cylinder 4 form a seal using the third sealing element 18. It should be noted that the upper and lower ends of the cylinder 4 are sealed to the ring seat 1 and the lifting ring connecting plate 9, respectively. The sealing positions can be the upper and lower end faces of the cylinder 4, or the outer circumferential surface of the cylinder 4, as long as the cylinder 4 is sealed to the ring seat 1 and the lifting ring connecting plate 9.

[0025] Alternatively, if the second lifting drive element 8 is directly fixedly mounted on the lifting ring connecting plate 9, a seal is formed between the fourth sealing element 17 and the lifting ring connecting plate 9. Or as... Figure 5 As shown, a drive seat 25 is provided on the lower side of the lifting ring connecting plate 9. Several support columns 26 are provided between the drive seat 25 and the lifting ring connecting plate 9. The two ends of the support columns 26 are fixedly connected to the lifting ring connecting plate 9 and the drive seat 25, respectively, while separating the drive seat 25 and the lifting ring connecting plate 9 to form a certain gap. A sealing plate 23 is provided at the lower end of the through hole of the lifting ring connecting plate 9. The sealing plate 23 forms a seal with the hole wall of the through hole through the sixth sealing element 27. The second lifting drive element 8 is installed on the drive seat 25. The telescopic rod passes through the sealing plate 23 and is connected to the center rod 6. The telescopic rod and the sealing plate 23 achieve a sliding seal through the fifth sealing element 24.

[0026] If the second lifting drive element 8 is a pneumatic cylinder, electric cylinder, etc., the cylinder body can be directly installed on the lifting ring connecting plate 9; if the second lifting drive element 8 is a hydraulic cylinder, the cylinder body is installed on the drive seat 25, and the telescopic rod slides and seals with the sealing plate 23; since the cylinder body of the hydraulic cylinder is not directly connected to the lifting ring connecting plate 9, even if the hydraulic cylinder leaks oil, it will not enter the floating chamber 5, and will not be carried by the gas to the upper connecting hole 11 and the lower connecting hole 16, thereby causing the upper connecting hole 11 and the lower connecting hole 16 to be blocked.

[0027] The arrangement of the first sealing element 22, the second sealing element 21, the third sealing element 18, the fourth sealing element 17, the fifth sealing element 24, and the sixth sealing element 27 ensures that the gas can only flow along the preset path, thus preventing gas leakage.

[0028] A first guide sleeve 19 is provided between the cylinder 4 and the inner wall of the first guide hole 15. The lifting ring connecting plate 9 and the ring seat 1 are connected by several support rods 14 and move up and down synchronously. The guide seat 3 is provided with through holes corresponding to the positions of the support rods 14. A second guide sleeve 20 is fixed to the inner wall of the through hole. The support rods 14 pass through the second guide sleeve 20 and slide with the second guide sleeve 20 to guide the lifting of the support rods 14. The first lifting drive element 12 is used to drive the support rods 14 to move up and down. For example, the first lifting drive element 12 is a cylinder. The cylinder body is fixed to the frame 2 by the support plate 13, and the piston rod is fixedly connected to the lifting ring connecting plate 9.

[0029] It should be noted that the first lifting drive element 12 and the second lifting drive element 8 are not limited to cylinders, hydraulic cylinders, electric cylinders, etc., and can also be drive components composed of motors and screws.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tire vulcanizing device, comprising a central mechanism; characterized in that, The central mechanism includes a ring seat (1), a cylinder (4), a lifting ring connecting plate (9), a central rod (6), a second lifting drive element (8), and a first lifting drive element (12). The upper end of the cylinder (4) is fixedly connected to the ring seat (1), and the lower end is fixedly connected to the lifting ring connecting plate (9). The central rod (6) is located inside the cylinder (4), forming a floating cavity (5) between them. The lower part of the floating cavity (5) is provided with an internal pressure inlet / outlet hole (7). The upper end of the central rod (6) extends through the central hole of the ring seat (1) to the upper side of the ring seat (1), and the lower end passes through the through hole of the lifting ring connecting plate (9) and is connected to the second lifting drive element (8). The central rod (6) has a connecting cavity (10) inside. The connecting cavity (10) extends axially, and the upper part is provided with an upper connecting hole (11) for connecting the inner cavity of the capsule, and the lower part is provided with a lower connecting hole (16) for connecting the floating cavity (5). The first lifting drive element (12) is used to drive the lifting ring connecting plate (9) to rise and fall.

2. The tire vulcanizing equipment according to claim 1, characterized in that, The internal pressure inlet / outlet hole (7) is located inside the lifting ring connecting plate (9) and communicates with the through hole.

3. The tire vulcanizing equipment according to claim 1, characterized in that, The number of the upper connecting hole (11) and the lower connecting hole (16) are both multiple and are evenly distributed in the circumferential direction of the central rod (6).

4. The tire vulcanizing equipment according to claim 1, characterized in that, The lower connecting hole (16) is located at the lower end of the central rod (6).

5. The tire vulcanizing equipment according to claim 1, characterized in that, The center rod (6) and the center hole of the ring seat (1) form a sliding seal using the first sealing element (22); And / or, the upper end of the cylinder (4) is sealed to the ring seat (1) by a second sealing element (21); And / or, the upper end of the through hole is sealed to the lower end of the cylinder (4) by a third sealing element (18).

6. The tire vulcanizing equipment according to claim 1, characterized in that, The second lifting drive element (8) is fixedly installed on the lifting ring connecting plate (9), and the second lifting drive element (8) is sealed to the lower end of the through hole by the fourth sealing element (17).

7. The tire vulcanizing equipment according to claim 1, characterized in that, A drive seat (25) is fixedly connected to the lower side of the lifting ring connecting plate (9), and the drive seat (25) and the lifting ring connecting plate (9) are arranged vertically at intervals; the second lifting drive element (8) is fixedly installed on the drive seat (25), and the telescopic rod of the second lifting drive element (8) extends into the through hole to drive the center rod (6). A sealing plate (23) is provided at the lower end of the through hole. The sealing plate (23) is sealed to the wall of the through hole by a sixth sealing element (27). The telescopic rod of the second lifting drive element (8) and the sealing plate (23) achieve sliding sealing through a fifth sealing element (24).

8. The tire vulcanizing equipment according to claim 1, characterized in that, It also includes a frame (2), on which a guide seat (3) is fixedly installed. The guide seat (3) has a first guide hole (15), and the ring seat (1) is slidably disposed in the first guide hole (15).

9. A tire vulcanizing equipment according to claim 8, characterized in that, The upper end of the cylinder (4) extends into the first guide hole (15), and a first guide sleeve (19) is provided between the cylinder (4) and the inner wall of the first guide hole (15).

10. A tire vulcanizing equipment according to claim 8, characterized in that, A plurality of support rods (14) are provided between the lifting ring connecting plate (9) and the ring seat (1). A second guide sleeve (20) is provided at the position corresponding to the support rod (14) of the guide seat (3). The support rod (14) and the second guide sleeve (20) are slidably engaged.

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