Low temperature slow curing device for semi-steel radial tire vulcanization capsule

Abstract

The utility model discloses a low temperature slow vulcanization device of semi -steel radial tire vulcanization capsule, including frame, the fixed installation of lower mould is installed on the frame, be equipped with upper mould on the frame, be equipped with the installing rod between upper mould and lower mould, the adjusting rod of sliding installation has in the installing rod, be equipped with screw rod in the installing rod, the four groups symmetrical distribution's abutment board of adjusting rod four around be equipped with, all fixed mounting rubber sucking disc are installed on four groups the abutment board, four groups the abutment board with adjusting rod and installing rod between all be equipped with the first support and second support of cross distribution, through the rotation screw rod drive adjusting rod axial movement in the installing rod, drive the first support and second support of cross distribution form four groups abutment board's synchronous radial telescoping, and two groups of support form X type linkage structure and ensure that abutment board movement track is accurate symmetry, cooperate the flexible contact surface of rubber sucking disc, make the capsule of different diameters be always stably clamped in the geometric center position of lower mould.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization technology, specifically to a low-temperature slow vulcanization device for semi-steel radial tire vulcanization bladders. Background Technology

[0002] In tire manufacturing, vulcanization is a key process that determines the final performance of a tire. As the core component that transfers heat and pressure, the quality and stability of the vulcanizing bladder directly affect the uniformity of vulcanization, the product qualification rate, and the service life of the tire. In the traditional vulcanization process, the bladder needs to expand and contract repeatedly under high temperature and high pressure, and endure mechanical stress and thermal aging for a long time. This makes it prone to cracking, deformation, and other problems, resulting in uneven vulcanization of tires, increased defect rate, and a significant increase in the mold maintenance costs of enterprises.

[0003] Traditional vulcanizing equipment typically uses fixed clamps or molds designed for specific types of vulcanizing capsules. When changing capsules of different diameters or heights, manual adjustment or replacement of the clamps is required. Manual adjustment makes it difficult to ensure that the capsule is absolutely centered in the vulcanizing equipment, which may lead to uneven distribution of vulcanizing pressure, affecting capsule life and tire vulcanization quality. Furthermore, frequent clamp replacements or adjustments to the positioning mechanism increase production preparation time and reduce production efficiency. Existing fixed clamps cannot meet the automatic centering requirements of capsules of different specifications, limiting the versatility of vulcanizing equipment. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature slow vulcanization device for semi-steel radial tire vulcanizing bladders, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature slow vulcanization device for semi-steel radial tire vulcanizing bladders, comprising a frame, a lower mold fixedly mounted on the frame, an upper mold mounted on the frame, an installation rod between the upper mold and the lower mold, the axis of the installation rod being aligned with the center of the lower mold, an adjusting rod slidably mounted inside the installation rod, a lead screw inside the installation rod, four sets of symmetrically distributed abutments around the adjusting rod, rubber suction cups fixedly mounted on each of the four sets of abutments, and first and second supports intersectingly distributed between the four sets of abutments, the adjusting rod, and the installation rod, a fixed rod fixedly mounted inside the upper mold, a first telescopic rod slidably mounted inside the fixed rod, a second telescopic rod slidably mounted inside the first telescopic rod, and the end of the second telescopic rod away from the fixed rod being fixedly connected to the fixed rod.

[0006] As a further preferred embodiment of this technical solution, the upper end of the lead screw passes through the mounting rod and is rotatably connected to the mounting rod via a rolling bearing, and the lower end of the lead screw passes through the adjusting rod and is threadedly connected to the adjusting rod.

[0007] As a further preferred embodiment of this technical solution, the lower end of the first bracket is rotatably connected to the adjusting rod via a rotating shaft, and the upper end of the first bracket is rotatably connected to the abutment via a rotating shaft.

[0008] As a further preferred embodiment of this technical solution, the upper end of the second bracket is rotatably connected to the mounting rod via a rotating shaft, and the lower end of the second bracket is slidably connected to the abutment plate.

[0009] As a further preferred embodiment of this technical solution, the fixed rod is provided with a threaded rod, the first telescopic rod is provided with a threaded tube, the upper end of the threaded rod passes through the mounting rod and is rotatably connected to the mounting rod through a rolling bearing, and the lower end of the threaded rod passes through the first telescopic rod and is threadedly connected to the first telescopic rod.

[0010] As a further preferred embodiment of this technical solution, the upper end of the threaded tube passes through the first telescopic rod and is rotatably connected to the first telescopic rod through a rolling bearing, and the lower end of the threaded tube passes through the second telescopic rod and is threadedly connected to the second telescopic rod.

[0011] As a further preferred embodiment of this technical solution, the threaded rod is provided with two sets of symmetrically distributed limiting grooves, and the threaded tube is provided with two sets of symmetrically distributed limiting blocks. The two sets of limiting blocks are correspondingly arranged with the limiting grooves, and the threaded tube is slidably sleeved with the threaded rod through the limiting blocks and limiting grooves.

[0012] This utility model provides a low-temperature slow vulcanization device for semi-steel radial tire vulcanizing bladders, which has the following beneficial effects: (1) This utility model drives the adjusting rod to move axially within the mounting rod by rotating the lead screw, thereby causing the first and second supports to be distributed in a cross pattern to form four sets of abutments that move radially in sync. The first support is linked to the adjusting rod and the abutment by a rotating shaft to form an active push-pull mechanism, while the second support is slidably connected to the abutment by the rotating shaft of the mounting rod to form a passive support mechanism. The X-shaped linkage structure formed by the two sets of supports ensures that the movement trajectory of the abutment is precise and symmetrical. Combined with the flexible contact surface of the rubber suction cup, capsules of different diameters are always stably clamped at the geometric center of the lower mold, which completely solves the problem of eccentricity caused by manual adjustment, improves the uniformity of vulcanization pressure distribution, and extends the service life of the capsules.

[0013] (2) The threaded rod inside the fixed rod of this utility model is driven to rotate by a motor. The limiting groove on its surface and the limiting block inside the threaded tube form a sliding pair, ensuring that the threaded tube rotates synchronously but is axially limited during power transmission. This precision transmission mechanism drives the first telescopic rod to perform a first-stage lifting and lowering, and at the same time, the extension section is adjusted through the secondary thread engagement between the threaded tube and the second telescopic rod, forming a two-stage height adjustment system. This design allows the mounting frame to adapt to capsules of different heights within a certain range, with high adjustment accuracy. The changeover time is greatly shortened compared to traditional devices, the equipment versatility is improved, and the overall structure achieves full-specification self-adaptation through mechanical linkage, enabling precise positioning and vulcanization of capsules of different specifications without manual intervention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing a partial structural separation of the present invention; Figure 3 This is a schematic diagram showing the separation of the mounting rod and adjusting rod of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A; In the diagram: 1. Frame; 2. Lower mold; 3. Upper mold; 4. Mounting rod; 5. Adjusting rod; 6. Lead screw; 7. Support plate; 8. Rubber suction cup; 9. First bracket; 10. Second bracket; 11. Fixing rod; 12. First telescopic rod; 13. Second telescopic rod; 14. Threaded rod; 15. Limiting groove; 16. Threaded tube; 17. Limiting block. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This utility model provides a technical solution as follows: Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the low-temperature slow vulcanization device for the semi-steel radial tire vulcanizing bladder includes a frame 1, a lower mold 2 fixedly mounted on the frame 1, an upper mold 3 mounted on the frame 1, an installation rod 4 between the upper mold 3 and the lower mold 2, the axis of the installation rod 4 being aligned with the center of the lower mold 2, an adjusting rod 5 slidably mounted inside the installation rod 4, a lead screw 6 inside the installation rod 4, and four sets of symmetrically distributed abutment plates 7 around the adjusting rod 5, each of the four sets of abutment plates 7 having a rubber suction cup 8 fixedly mounted on it, the four sets of abutment plates 7 and the adjusting rod A first bracket 9 and a second bracket 10 are provided intersectingly between the mounting rod 4 and the mounting rod 5. A fixed rod 11 is fixedly installed inside the upper mold 3. A first telescopic rod 12 is slidably installed inside the fixed rod 11. A second telescopic rod 13 is slidably installed inside the first telescopic rod 12. The end of the second telescopic rod 13 away from the fixed rod 11 is fixedly connected to the fixed rod 11. The upper end of the lead screw 6 passes through the mounting rod 4 and is rotatably connected to the mounting rod 4 through a rolling bearing. The lower end of the lead screw 6 passes through the adjusting rod 5 and is threadedly connected to the adjusting rod 5. The lower end of the first bracket 9... The first bracket 9 is rotatably connected to the adjusting rod 5 via a rotating shaft. The upper end of the first bracket 9 is rotatably connected to the abutment plate 7 via a rotating shaft. The upper end of the second bracket 10 is rotatably connected to the mounting rod 4 via a rotating shaft. The lower end of the second bracket 10 is slidably connected to the abutment plate 7. Through precision mechanical linkage, the vulcanizing capsule is automatically centered and clamped. When capsules of different diameters are placed in the lower mold 2, the motor in the mounting rod 4 drives the lead screw 6 to rotate. Since the lead screw 6 and the adjusting rod 5 form a threaded transmission, the adjusting rod 5 moves axially along the mounting rod 4. The lifting and lowering of the adjusting rod 5 drives the four sets of first brackets 9 to move synchronously. The first brackets 9 push the abutment plate 7 to move radially via a rotating shaft. At the same time, the upper end of the second bracket 10 is hinged to the mounting rod 4, and the lower end slides along the abutment plate 7, forming a stable X-shaped support structure. This ensures that the four sets of abutment plates 7 expand outward or contract inward synchronously. The rubber suction cup 8 is in flexible contact with the inner wall of the capsule. Under the action of uniform clamping force, the capsule is automatically adjusted to the geometric center of the lower mold 2 with a small deviation. This structure completely eliminates the error of manual adjustment, ensures uniform distribution of vulcanizing pressure, and improves the quality of capsule molding.

[0017] like Figure 3 and Figure 4As shown, a threaded rod 14 is provided inside the fixed rod 11, and a threaded tube 16 is provided inside the first telescopic rod 12. The upper end of the threaded rod 14 passes through the mounting rod 4 and is rotatably connected to the mounting rod 4 through a rolling bearing. The lower end of the threaded rod 14 passes through the first telescopic rod 12 and is threadedly connected to the first telescopic rod 12. The upper end of the threaded tube 16 passes through the first telescopic rod 12 and is rotatably connected to the first telescopic rod 12 through a rolling bearing. The lower end of the threaded tube 16 passes through the second telescopic rod 13 and is threadedly connected to the second telescopic rod 13. Two sets of symmetrically distributed limiting grooves 15 are provided on the threaded rod 14, and two sets of symmetrically distributed limiting blocks 17 are provided inside the threaded tube 16. The two sets of limiting blocks 17 are correspondingly set with the limiting grooves 15. The threaded tube 16 is slidably sleeved with the threaded rod 14 through the limiting blocks 17 and the limiting grooves 15. To accommodate vulcanized capsules of different heights, the threaded tube 16 is fitted with a threaded tube 16. The mounting bracket employs a two-stage telescopic structure to achieve precise height adjustment. A motor in the fixed rod 11 drives the threaded rod 14 to rotate. Due to the engagement of the limiting groove 15 on the outer wall of the threaded rod 14 with the limiting block 17 inside the threaded tube 16, the threaded tube 16 moves axially along the threaded rod 14 while being restricted in its rotation, causing the first telescopic rod 12 to perform a first-stage lifting and lowering. Subsequently, the rotation of the threaded tube 16 further drives the second telescopic rod 13 to perform a second-stage telescopic extension along the internal thread pair, forming a compound stroke extension. This dual-stage adjustment mechanism increases the overall adjustment range of the mounting bracket, accommodating capsules of different specifications within a certain range. Furthermore, the adjustment process requires no replacement of any parts, improving changeover efficiency. The precise engagement of the limiting groove 15 and the limiting block 17 ensures zero backlash in transmission and high height positioning accuracy, meeting the stringent stability requirements of the low-temperature slow vulcanization process.

[0018] This utility model provides a low-temperature slow vulcanization device for semi-steel radial tire vulcanizing bladders. The specific working principle is as follows: Automatic centering and clamping of the vulcanizing bladder is achieved through precision mechanical linkage. When bladders of different diameters are placed in the lower mold 2, the motor in the mounting rod 4 drives the lead screw 6 to rotate. Since the lead screw 6 and the adjusting rod 5 form a threaded transmission, the adjusting rod 5 moves axially along the mounting rod 4. The lifting and lowering of the adjusting rod 5 drives the four sets of first supports 9 to move synchronously. The first supports 9 push the abutment plate 7 radially through a rotating shaft. Simultaneously, the upper end of the second support 10 is hinged to the mounting rod 4, and the lower end slides along the abutment plate 7, forming a stable X-shaped support structure. This ensures that the four sets of abutment plates 7 expand outward or contract inward synchronously. The rubber suction cup 8 flexibly contacts the inner wall of the bladder. Under the action of uniform clamping force, the bladder is automatically adjusted to the geometric center of the lower mold 2 with minimal deviation. This structure completely eliminates the error of manual adjustment, ensuring vulcanization pressure... The force is evenly distributed, improving the quality of capsule molding. To adapt to vulcanized capsules of different heights, the device adopts a two-stage telescopic structure to achieve precise height adjustment. The motor in the fixed rod 11 drives the threaded rod 14 to rotate. Due to the cooperation between the limiting groove 15 on the outer wall of the threaded rod 14 and the limiting block 17 in the threaded tube 16, the threaded tube 16 moves axially along the threaded rod 14 while being restricted in its rotation, driving the first telescopic rod 12 to perform a first-stage lifting and lowering. Subsequently, the rotation of the threaded tube 16 further drives the second telescopic rod 13 to perform a second-stage telescopic extension and retraction along the internal thread pair, forming a compound stroke extension. This dual-stage adjustment mechanism increases the total adjustment range of the mounting frame, which can accommodate capsules of different specifications within a certain range. Moreover, the adjustment process does not require the replacement of any parts, improving the efficiency of capsule changing. The precise cooperation between the limiting groove 15 and the limiting block 17 ensures that there is no backlash in the transmission and that the height positioning accuracy is high, meeting the stringent stability requirements of the low-temperature slow vulcanization process.

[0019] 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 low-temperature slow vulcanizing device for semi-steel radial tire vulcanizing bladders, comprising a frame (1), characterized in that: A lower mold (2) is fixedly installed on the frame (1), and an upper mold (3) is provided on the frame (1). An installation rod (4) is provided between the upper mold (3) and the lower mold (2). The axis of the installation rod (4) is aligned with the center of the lower mold (2). An adjusting rod (5) is slidably installed inside the installation rod (4). A lead screw (6) is provided inside the installation rod (4). Four sets of symmetrically distributed abutments (7) are provided around the adjusting rod (5). Rubber suction cups (8) are fixedly installed on each of the four sets of abutments (7). A first bracket (9) and a second bracket (10) are provided between the four sets of abutments (7), the adjusting rod (5), and the installation rod (4). A fixed rod (11) is fixedly installed inside the upper mold (3). A first telescopic rod (12) is slidably installed inside the fixed rod (11). A second telescopic rod (13) is slidably installed inside the first telescopic rod (12). The end of the second telescopic rod (13) away from the fixed rod (11) is fixedly connected to the fixed rod (11).

2. The low-temperature slow vulcanization device for the semi-steel radial tire vulcanizing bladder according to claim 1, characterized in that: The upper end of the lead screw (6) passes through the mounting rod (4) and is rotatably connected to the mounting rod (4) through a rolling bearing. The lower end of the lead screw (6) passes through the adjusting rod (5) and is threadedly connected to the adjusting rod (5).

3. The low-temperature slow vulcanization device for the semi-steel radial tire vulcanizing bladder according to claim 1, characterized in that: The lower end of the first bracket (9) is rotatably connected to the adjusting rod (5) via a rotating shaft, and the upper end of the first bracket (9) is rotatably connected to the abutment plate (7) via a rotating shaft.

4. The low-temperature slow vulcanization device for the semi-steel radial tire vulcanizing bladder according to claim 1, characterized in that: The upper end of the second bracket (10) is rotatably connected to the mounting rod (4) via a rotating shaft, and the lower end of the second bracket (10) is slidably connected to the abutment plate (7).

5. The low-temperature slow vulcanization device for the semi-steel radial tire vulcanizing bladder according to claim 1, characterized in that: The fixed rod (11) is provided with a threaded rod (14), and the first telescopic rod (12) is provided with a threaded tube (16). The upper end of the threaded rod (14) passes through the mounting rod (4) and is rotatably connected to the mounting rod (4) through a rolling bearing. The lower end of the threaded rod (14) passes through the first telescopic rod (12) and is threadedly connected to the first telescopic rod (12).

6. The low-temperature slow vulcanization apparatus for the semi-steel radial tire vulcanizing bladder according to claim 5, characterized in that: The upper end of the threaded tube (16) passes through the first telescopic rod (12) and is rotatably connected to the first telescopic rod (12) through a rolling bearing. The lower end of the threaded tube (16) passes through the second telescopic rod (13) and is threadedly connected to the second telescopic rod (13).

7. The low-temperature slow vulcanization apparatus for the semi-steel radial tire vulcanizing bladder according to claim 5, characterized in that: The threaded rod (14) has two sets of symmetrically distributed limiting grooves (15), and the threaded tube (16) has two sets of symmetrically distributed limiting blocks (17). The two sets of limiting blocks (17) are correspondingly arranged with the limiting grooves (15). The threaded tube (16) is slidably connected to the threaded rod (14) through the limiting blocks (17) and the limiting grooves (15).

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