A pressurized clamping mechanism and hydraulic vulcanizing machine

Abstract

The present invention relates to the field of tire production technology, and discloses a pressurized mold-locking mechanism and a hydraulic vulcanizer. The pressurized mold-locking mechanism includes a pressurized mold-adjusting assembly, a tie rod assembly, and a mold-locking assembly. The pressurized mold-adjusting assembly includes a pressurized mold-adjusting oil cylinder fixedly mounted on an upper support plate. The piston rod of the pressurized mold-adjusting oil cylinder extends downward through the upper support plate. The tie rod assembly includes an upper tie rod and a lower tie rod that are rotatably and detachably connected. The upper tie rod is fixedly connected to the piston rod, and the lower tie rod passes through the lower support plate and is rotatably connected thereto. A multi-stage mold-adjusting structure is provided between the upper tie rod and the lower tie rod. The mold-locking assembly is mounted on the lower support plate and is used to drive the lower tie rod to rotate. The mold-adjusting method of combining the coarse mold adjustment of the multi-stage mold-adjusting structure and the fine mold adjustment of the pressurized mold-adjusting oil cylinder satisfies the mold adjustment requirements of different molds, reduces the complexity of the entire pressurized mold-locking mechanism, and makes the entire pressurized mold-locking mechanism small in size, light in weight, and highly efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of tire production, and in particular to a pressurized mold locking mechanism and a hydraulic vulcanizer. Background Art

[0002] The clamping structures of existing tire vulcanizers include the following three types:

[0003] The side plate latch locking structure means that the latch is inserted into the side plate hole to achieve mold locking;

[0004] The lock ring mold locking structure means that the top of the upper lock ring seat is fixed to the upper support plate, the lower seat plate is fixed to the base, and the lock ring is installed on the lower seat plate. The lock ring and the upper lock ring seat have matching lock teeth. However, the above two mold locking structures cannot adapt to mold structures of different heights;

[0005] The column clamping plate clamping structure refers to a structure in which multiple annular grooves are provided on the column at the clamping position. When clamping the mold, the clamping plate is clamped in the annular groove on the column. It can adapt to mold structures of different heights. However, in order to ensure reliable clamping and improve the clamping force, the annular grooves are usually deeper, so the column is relatively thick, making the entire vulcanizer large and bulky. Summary of the Invention

[0006] Based on the above problems, one object of the present invention is to provide a pressurized clamping mechanism with small size, light weight and high working efficiency.

[0007] Based on the above problems, another object of the present invention is to provide a hydraulic vulcanizer with a simple structure, easy operation, low cost, and the ability to be adaptively adjusted according to molds of different heights.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A pressurized mold-locking mechanism is used to fix an upper support plate and a lower support plate during vulcanization operation in a hydraulic vulcanizer. The pressurized mold-locking mechanism includes:

[0010] A pressurized mold adjustment assembly comprises a pressurized mold adjustment oil cylinder fixedly mounted on the upper support plate, wherein a piston rod of the pressurized mold adjustment oil cylinder passes through the upper support plate and extends downward;

[0011] A pull rod assembly includes an upper pull rod and a lower pull rod that are rotatably connected and detachably connected. The upper pull rod is fixedly connected to the piston rod, and the lower pull rod passes through the lower support plate and is rotatably connected thereto. A multi-stage mold adjustment structure is provided between the upper pull rod and the lower pull rod;

[0012] The mold locking assembly is installed on the lower supporting plate and is used to drive the lower pull rod to rotate.

[0013] As an optional solution of the pressurized clamping mechanism of the present invention, the end of one of the upper pull rod and the lower pull rod is provided with a plurality of protrusions evenly distributed in the circumferential direction, and the end of the other is provided with grooves evenly distributed in the circumferential direction with the same number as the protrusions, and the upper pull rod and the lower pull rod are rotatably and detachably connected through the protrusions and the grooves.

[0014] As an optional solution of the pressurized clamping mechanism of the present invention, the multi-stage mold adjustment structure includes: a plurality of circumferentially uniformly distributed protrusions are arranged in multiple layers along the axial direction of the pull rod assembly; and / or a plurality of circumferentially uniformly distributed grooves with the same number of protrusions are arranged in multiple groups along the axial direction of the pull rod assembly.

[0015] As an optional solution of the pressurized mold-locking mechanism of the present invention, the upper pull rod is threadedly connected to the piston rod.

[0016] As an optional solution of the pressurized clamping mechanism of the present invention, the clamping assembly includes a clamping drive device, a clamping drive rod and a clamping disk connected in sequence, the clamping disk is fixedly connected to the lower pull rod, and the clamping drive device drives the lower pull rod to rotate through the clamping drive rod and the clamping disk.

[0017] As an optional solution of the pressurized mold clamping mechanism of the present invention, a guide hole is provided on the upper supporting plate, and one end of the upper pull rod away from the lower pull rod is movably provided in the guide hole.

[0018] As an optional solution of the pressurized clamping mechanism of the present invention, a guide key is provided on the hole wall of the guide hole, and a guide groove extending along the axial direction of the upper pull rod is provided, and the guide key is slidably engaged with the guide groove.

[0019] A hydraulic vulcanizer includes a frame, an upper support plate, a lower support plate, and an opening and closing mold assembly. The lower support plate is connected to the frame, the opening and closing mold assembly is installed on the lower support plate and drives the upper support plate to move up and down. The hydraulic vulcanizer also includes multiple groups of pressurized clamping mechanisms as described above.

[0020] As an optional solution of the hydraulic vulcanizer of the present invention, it also includes a guide assembly, which includes a guide rod and a guide cylinder. The guide cylinder is arranged on the upper support plate, one end of the guide rod is arranged on the lower support plate, and the other end movably passes through the guide cylinder.

[0021] As an optional solution of the hydraulic vulcanizer of the present invention, the mold opening and closing assembly includes a mold opening and closing drive component, a first mounting seat and a second mounting seat. The output rod of the mold opening and closing drive component is fixedly connected to the upper support plate through the first mounting seat, and the shell of the mold opening and closing drive component is fixedly connected to the lower support plate through the second mounting seat.

[0022] The working principle of the present invention is:

[0023] The pressurized mold-locking mechanism and hydraulic vulcanizing machine provided by the present invention respectively place the upper mold and the lower mold for tire processing mold on the upper support plate and the lower support plate. When the mold closing starts, the lower support plate is fixed, the upper support plate descends, and drives the upper pull rod to move close to the lower pull rod, and the coarse mold adjustment action is completed by the multi-stage mold adjustment structure between the upper pull rod and the lower pull rod, and the mold locking assembly on the lower support plate drives the lower pull rod to rotate, so that the lower pull rod and the upper pull rod are locked to complete the mold locking action; then the upper support plate continues to descend. At this time, the pressurized mold-adjusting oil cylinder is in a free state, and the piston rod is driven by the upper pull rod to compress the rodless cavity to complete the fine mold adjustment action. When the preset mold adjustment height is reached, the upper support plate stops descending to complete the mold adjustment action; after the mold is adjusted in place, the tire vulcanization operation is carried out, and the impact force generated during the tire vulcanization process acts between the upper support plate and the lower support plate. The piston rod is pressurized by the pressurized mold-adjusting oil cylinder, so that the piston rod has a tendency to slide upward, thereby offsetting the impact force generated by the tire vulcanization, avoiding separation of the upper mold and the lower mold, and completing the pressurization action.

[0024] The beneficial effects of the present invention are:

[0025] The pressurized mold-locking mechanism provided by the present invention meets the mold adjustment requirements of different molds through a combined mold adjustment method of coarse mold adjustment of a multi-stage mold adjustment structure and fine mold adjustment of a pressurized mold adjustment cylinder, reduces the complexity of the entire pressurized mold-locking mechanism, and makes the entire pressurized mold-locking mechanism small in size, light in weight, and highly efficient.

[0026] The hydraulic vulcanizer provided by the present invention has a lower support plate connected to the frame, an opening and closing mold assembly installed on the lower support plate, and drives the upper support plate to move up and down, and multiple groups of the above-mentioned pressurized locking mechanisms are distributed between the upper and lower support plates, ensuring the uniformity of force when the mold is closed, improving the tire molding quality, and extending the service life of the mold. The mold adjustment method of the combination of coarse mold adjustment of the multi-stage mold adjustment structure and fine mold adjustment of the pressurized mold adjustment cylinder meets the mold adjustment requirements of different molds, reduces the complexity of the entire hydraulic vulcanizer, is easy to operate, and the entire hydraulic vulcanizer is small in size, light in weight, and has low processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0028] Figure 1 1 is a schematic diagram of the three-dimensional structure of a hydraulic vulcanizer including a pressurized mold clamping mechanism provided by a specific embodiment of the present invention at a first viewing angle;

[0029] Figure 2 2 is a schematic diagram of the three-dimensional structure of a hydraulic vulcanizer including a pressurized mold clamping mechanism provided by a specific embodiment of the present invention at a second viewing angle;

[0030] Figure 3 1 is a bottom view schematic diagram of a hydraulic vulcanizing press including a pressurized mold clamping mechanism provided by a specific embodiment of the present invention;

[0031] Figure 4 It is a cross-sectional schematic diagram of a pressurized mold adjustment assembly and a pull rod assembly provided in a specific embodiment of the present invention.

[0032] In the picture:

[0033] 1-upper support plate; 2-lower support plate; 3-pressurized mold adjustment assembly; 4-pull rod assembly; 5-clamping assembly; 6-frame;

[0034] 7- opening and closing mold assembly; 8- guide assembly;

[0035] 11- guide hole;

[0036] 31- pressurized mold adjustment cylinder; 311- cylinder body; 312- piston rod; 313- rod chamber; 314- rodless chamber;

[0037] 41-upper pull rod; 42-lower pull rod; 43-protrusion; 44-groove; 45-sliding sleeve; 46-locking ring;

[0038] 51- clamping drive device; 52- clamping drive rod; 53- clamping plate; 54- fixed bracket;

[0039] 71- opening and closing mold driving member; 72- first mounting seat; 73- second mounting seat;

[0040] 81-guide rod; 82-guide cylinder. DETAILED DESCRIPTION

[0041] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0044] like Figures 1 to 4 As shown, this embodiment provides a pressurized mold-locking mechanism for securing an upper support plate 1 and a lower support plate 2 during vulcanization operations in a hydraulic vulcanizer. The upper and lower molds of a tire processing mold are placed on the upper and lower support plates 1 and 2, respectively. The pressurized mold-locking mechanism includes a pressurized mold-adjusting assembly 3, a tie rod assembly 4, and a mold-locking assembly 5. The pressurized mold-adjusting assembly 3 includes a pressurized mold-adjusting cylinder 31 fixedly mounted on the upper support plate 1. The piston rod 312 of the pressurized mold-adjusting cylinder 31 extends downward through the upper support plate 1. The tie rod assembly 4 includes an upper tie rod 41 and a lower tie rod 42 that are rotatably connected. The upper tie rod 41 is fixedly connected to the piston rod 312, while the lower tie rod 42 passes through the lower support plate 2 and is rotatably connected thereto. A multi-stage mold-adjusting structure is provided between the upper tie rod 41 and the lower tie rod 42. The multi-stage mold-adjusting structure is used to adjust the mold height in multiple stages, completing preliminary coarse mold adjustment. The mold-locking assembly 5 is mounted on the lower support plate 2 and is used to drive the lower tie rod 42 to rotate.

[0045] like Figure 4 As shown, the piston rod 312 separates the inner cavity of the cylinder body 311 into a rod cavity 313 and a rodless cavity 314. When the pressure of the rod cavity 313 is greater than the pressure of the rodless cavity 314, the piston rod 312 retracts under the action of the pressure difference, and the cylinder body 311 applies a force to the upper support plate 1. At the same time, the lower pull rod 42 locked with the upper pull rod 41 applies a force to the lower support plate 2 to lock the upper support plate 1 and the lower support plate 2, thereby realizing the pressurization action.

[0046] When the mold is closed, the lower support plate 2 is fixed, the upper support plate 1 is lowered, and the upper pull rod 41 is driven to move close to the lower pull rod 42. The coarse mold adjustment action is completed through the multi-stage mold adjustment structure between the upper pull rod 41 and the lower pull rod 42, and the mold locking assembly 5 on the lower support plate 2 drives the lower pull rod 42 to rotate, so that the lower pull rod 42 and the upper pull rod 41 are locked to complete the mold locking action; then the upper support plate 1 continues to descend. At this time, the pressurized mold adjustment cylinder 31 is in a free state, and the piston rod 312 is driven by the upper pull rod 41 to compress the rodless cavity 314 to complete the fine mold adjustment action. When the preset mold adjustment height is reached, the upper support plate 1 stops descending and the mold adjustment action is completed. After the mold is adjusted in place, the tire vulcanization operation is carried out. The impact force generated during the tire vulcanization process acts between the upper support plate 1 and the lower support plate 2. The piston rod 312 is pressurized by the pressurized mold adjustment cylinder 31, so that the piston rod 312 has a tendency to slide upward, which offsets the impact force generated by the tire vulcanization, avoids the upper mold from separating from the lower mold, and completes the pressurization action.

[0047] It should be noted that a displacement sensor is provided on the cylinder body 311 for detecting the position of the piston rod 312 so as to accurately complete the fine adjustment of the mold.

[0048] like Figure 4 As shown, optionally, one of the upper and lower rods 41 and 42 has a plurality of protrusions 43 evenly distributed circumferentially at its end, and the other has a plurality of grooves 44 evenly distributed circumferentially, the same number as the protrusions 43, at its end. The upper and lower rods 41 and 42 are rotatably and detachably connected via the protrusions 43 and grooves 44. The plurality of protrusions 43 evenly distributed circumferentially are generally spline-shaped or plum-shaped, and the plurality of grooves 44 evenly distributed circumferentially are generally spline-shaped. When the lower rod 42 is rotated, the protrusions 43 can be aligned with the grooves 44, or interfere with the grooves 44, thereby achieving a rotatable and detachable connection between the upper and lower rods 41 and 42. In other embodiments, the number of protrusions 43 and grooves 44 can also be inconsistent, for example, the number of protrusions 43 and grooves 44 can be in a multiple relationship.

[0049] like Figure 4 As shown, in this embodiment, the multi-stage mold adjustment structure includes: multiple layers of circumferentially evenly distributed protrusions 43 arranged along the axis of the tie rod assembly 4; and / or multiple groups of circumferentially evenly distributed grooves 44, equal in number to the number of protrusions 43, arranged along the axis of the tie rod assembly 4. The protrusions 43 of varying heights interact with the grooves 44 to achieve multi-stage coarse mold adjustment. In this embodiment, the upper tie rod 41 is provided with one set of grooves 44, and the lower tie rod 42 is provided with three layers of protrusions 43, achieving three levels of mold height adjustment.

[0050] In order to strengthen the connection strength between the upper pull rod 41 and the piston rod 312 and facilitate assembly, the upper pull rod 41 is optionally threadedly connected to the piston rod 312. In addition, the threaded connection between the upper pull rod 41 and the piston rod 312 can also achieve adjustment of the mold adjustment range. To prevent the upper pull rod 41 from shaking, optionally, a guide hole 11 is provided on the upper support plate 1, and one end of the upper pull rod 41 away from the lower pull rod 42 is movably provided in the guide hole 11. To prevent the upper pull rod 41 from rotating circumferentially relative to the guide hole 11, optionally, a guide key is provided on the hole wall of the guide hole 11, and the upper pull rod 41 is provided with a guide groove extending along its axial direction, and the guide key and the guide groove are slidably engaged.

[0051] To reduce frictional resistance during rotation of the lower pull rod 42, the lower pull rod 42 passes through the lower support plate 2. A sliding sleeve 45 is provided between the lower pull rod 42 and the lower support plate 2. The sliding sleeve 45 can be a copper sleeve to reduce frictional resistance. To prevent the lower pull rod 42 from detaching from the lower support plate 2, a locking ring 46 is fixedly provided on the lower support plate 2. The locking ring 46 engages with the lower pull rod 42. Specifically, the lower pull rod 42 is provided with a circumferential groove, and the locking ring 46 is fitted into the groove. Further preferably, the locking ring 46 is an annular structure consisting of two semicircular rings to facilitate assembly.

[0052] like Figure 3 As shown, the mold clamping assembly 5 optionally includes a mold clamping drive device 51, a mold clamping drive rod 52, and a mold clamping plate 53, which are connected in sequence. The mold clamping plate 53 is fixedly connected to the lower tie rod 42. The mold clamping drive device 51 drives the lower tie rod 42 to rotate via the mold clamping drive rod 52 and the mold clamping plate 53. When multiple sets of the above-mentioned pressurized mold clamping mechanisms are distributed between the upper support plate 1 and the lower support plate 2, the mold clamping drive device 51 can drive two or more mold clamping plates 53 via the mold clamping drive rod 52 to achieve synchronous mold clamping. The mold clamping assembly 5 also includes a fixed bracket 54, which is fixedly mounted on the lower support plate 2 and is used to mount the mold clamping drive device 51.

[0053] The pressurized mold-locking mechanism provided in this embodiment meets the mold adjustment requirements of different molds through the combined mold adjustment method of the coarse mold adjustment of the multi-stage mold adjustment structure and the fine mold adjustment of the pressurized mold adjustment cylinder 31, reduces the complexity of the entire pressurized mold-locking mechanism, and makes the entire pressurized mold-locking mechanism small in size, light in weight, and highly efficient.

[0054] like Figures 1 to 4 As shown, this embodiment also provides a hydraulic vulcanizer, which includes a frame 6, an upper support plate 1, a lower support plate 2, and an opening and closing mold assembly 7. The lower support plate 2 is connected to the frame 6, and the frame 6 can be a supporting structure of multiple legs. The opening and closing mold assembly 7 is installed on the lower support plate 2 and drives the upper support plate 1 to move up and down. The hydraulic vulcanizer also includes multiple groups of the above-mentioned pressurized clamping mechanisms.

[0055] In order to maintain the stability of the upper support plate 1 and the lower support plate 2 during mold closing, preferably, the hydraulic vulcanizer further includes a guide assembly 8, which includes a guide rod 81 and a guide cylinder 82. The guide cylinder 82 is provided on the upper support plate 1, and one end of the guide rod 81 is provided on the lower support plate 2, and the other end movably passes through the guide cylinder 82. The guide rod 81 can be a polished rod, and the guide cylinder 82 can be a linear bearing to reduce the friction resistance when the two are matched.

[0056] Optionally, the mold opening and closing assembly 7 includes a mold opening and closing drive member 71, a first mounting seat 72, and a second mounting seat 73. The output rod of the mold opening and closing drive member 71 is fixedly connected to the upper support plate 1 via the first mounting seat 72, and the housing of the mold opening and closing drive member 71 is fixedly connected to the lower support plate 2 via the second mounting seat 73. The mold opening and closing drive member 71 can be a pneumatic cylinder, an electric cylinder, or an oil cylinder. The upward and downward movement of the upper support plate 1 is achieved by the telescopic movement of the output rod of the mold opening and closing drive member 71 relative to the housing, thereby achieving the mold closing and opening actions of the upper and lower molds.

[0057] The hydraulic vulcanizer provided in this embodiment has multiple groups of the above-mentioned pressurized clamping mechanisms distributed between the upper support plate 1 and the lower support plate 2, which ensures the uniformity of force when the mold is closed, improves the tire molding quality, and extends the service life of the mold. The mold adjustment method of the combination of the coarse mold adjustment of the multi-stage mold adjustment structure and the fine mold adjustment of the pressurized mold adjustment cylinder 31 meets the mold adjustment requirements of different molds, reduces the complexity of the entire hydraulic vulcanizer, and makes the entire hydraulic vulcanizer small in size and light in weight.

[0058] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A pressurized mold clamping mechanism for fixing an upper support plate (1) and a lower support plate (2) during vulcanization operation in a hydraulic vulcanizer, characterized in that: The pressurized mold clamping mechanism includes: A pressurized mold adjustment assembly (3) comprises a pressurized mold adjustment oil cylinder (31) fixedly mounted on the upper support plate (1), a piston rod (312) of the pressurized mold adjustment oil cylinder (31) extending downward through the upper support plate (1), and the piston rod (312) divides the inner cavity of the cylinder body (311) into a rod cavity (313) and a rodless cavity (314); A pull rod assembly (4) comprises an upper pull rod (41) and a lower pull rod (42) which are rotatably and detachably connected, wherein the upper pull rod (41) is fixedly connected to the piston rod (312), and the lower pull rod (42) passes through the lower support plate (2) and is rotatably connected thereto, and a multi-stage mold adjustment structure is provided between the upper pull rod (41) and the lower pull rod (42); A mold locking assembly (5) is mounted on the lower support plate (2) and is used to drive the lower pull rod (42) to rotate; The upper pull rod (41) and the lower pull rod (42) are each provided with a plurality of protrusions (43) uniformly distributed in the circumferential direction at the end of one, and a plurality of grooves (44) uniformly distributed in the circumferential direction and the same number as the protrusions (43) are provided at the end of the other, and the upper pull rod (41) and the lower pull rod (42) are rotatably and detachably connected via the protrusions (43) and the grooves (44); The multi-stage mold adjustment structure includes: a plurality of circumferentially uniformly distributed protrusions (43) are arranged in multiple layers along the axial direction of the pull rod assembly (4); and / or a plurality of circumferentially uniformly distributed grooves (44) having the same number as the protrusions (43) are arranged in multiple groups along the axial direction of the pull rod assembly (4).

2. The pressurized mold clamping mechanism according to claim 1, characterized in that: The upper pull rod (41) is threadedly connected to the piston rod (312).

3. The pressurized mold clamping mechanism according to claim 1, characterized in that: The mold locking assembly (5) includes a mold locking drive device (51), a mold locking drive rod (52) and a mold locking disk (53) connected in sequence, the mold locking disk (53) is fixedly connected to the lower pull rod (42), and the mold locking drive device (51) drives the lower pull rod (42) to rotate through the mold locking drive rod (52) and the mold locking disk (53).

4. The pressurized mold clamping mechanism according to claim 1, characterized in that: A guide hole (11) is provided on the upper support plate (1), and one end of the upper pull rod (41) away from the lower pull rod (42) is movably arranged in the guide hole (11).

5. The pressurized mold clamping mechanism according to claim 4, characterized in that: A guide key is provided on the hole wall of the guide hole (11), and a guide groove extending along the axial direction of the upper pull rod (41) is provided, and the guide key is slidably engaged with the guide groove.

6. A hydraulic vulcanizing machine, comprising a frame (6), an upper support plate (1), a lower support plate (2), and a mold opening and closing assembly (7), wherein the lower support plate (2) is connected to the frame (6), and the mold opening and closing assembly (7) is mounted on the lower support plate (2) and drives the upper support plate (1) to move up and down, characterized in that: The hydraulic vulcanizer further comprises a plurality of pressurized mold-locking mechanisms as described in any one of claims 1 to 5.

7. The hydraulic vulcanizing press according to claim 6, characterized in that: The guide assembly (8) further comprises a guide rod (81) and a guide cylinder (82), wherein the guide cylinder (82) is arranged on the upper support plate (1), one end of the guide rod (81) is arranged on the lower support plate (2), and the other end movably passes through the guide cylinder (82).

8. The hydraulic vulcanizing press according to claim 6, characterized in that: The mold opening and closing assembly (7) comprises a mold opening and closing drive component (71), a first mounting seat (72) and a second mounting seat (73); the output rod of the mold opening and closing drive component (71) is fixedly connected to the upper support plate (1) via the first mounting seat (72); and the shell of the mold opening and closing drive component (71) is fixedly connected to the lower support plate (2) via the second mounting seat (73).

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