A tire vulcanization device with quick replaceable capsules

Abstract

The application discloses a tire vulcanization device with replaceable capsules, and belongs to the technical field of tire molds. The tire vulcanization device comprises a lower clamping assembly and a ring seat. The lower clamping assembly comprises a lower clamping ring and a lower steel ring, and the lower steel ring is fixedly connected with the ring seat. The lower side of the lower clamping ring is provided with a tension ring. The tension ring comprises an axial extension part and a radial extension part. The axial extension part is fixedly connected with the lower side of the lower clamping ring. The radial extension part is fixedly arranged at the lower end of the axial extension part. The ring seat is provided with a guide hole. A pull rod is arranged in the guide hole. A limiting part is arranged at the upper end of the pull rod. The limiting part is located between the radial extension part and the lower side of the lower clamping ring. The pull rod passes through a guide sleeve, and the guide part of the pull rod is matched with the guide groove of the guide sleeve. When the capsules are disassembled, the drive assembly drives the pull rod to first ascend along the axial direction and then ascend while rotating. After the lower clamping ring ascends to release the capsules, the limiting part rotates to an unlocking position. The assembly process of the capsules is opposite to the disassembly operation. The capsules and the lower clamping ring can be quickly disassembled and assembled, and the replacement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire mold, in particular to a tire vulcanization device capable of quickly replacing capsules. BACKGROUND

[0002] At present, capsules need to be frequently replaced during tire vulcanization production, and capsule clamps need to be disassembled and assembled. Capsules need to be replaced once every 200 tires, and the disassembly and assembly efficiency of capsules and capsule clamps directly affects the tire vulcanization production efficiency.

[0003] Generally, the upper clamping edge of the capsule is clamped and fixed by using an upper clamping ring and an upper steel ring, and the lower clamping edge is clamped and fixed by using a lower clamping ring and a lower steel ring. In order to facilitate the replacement of the capsule, the upper clamping ring and the upper steel ring and the lower clamping ring and the lower steel ring are connected by screws. The upper clamping assembly composed of the upper clamping ring and the upper steel ring is disassembled and assembled on the center mechanism and is lifted under the drive of the center mechanism to cooperate to realize tire vulcanization production. The lower clamping assembly composed of the lower clamping ring and the lower steel ring is installed on the ring seat.

[0004] When replacing the capsule, manual disassembly and assembly are required, such as disassembly and assembly of the lower clamping assembly and the ring seat, disassembly and assembly of the lower clamping ring and the lower steel ring, disassembly and assembly of the upper clamping ring and the upper steel ring, etc. The time-consuming is long, and the disassembly may be difficult due to the locking of the threaded connection or the adhesion of the capsule to the clamp. The disassembly and assembly efficiency is low. At the same time, manual operation needs to be performed in a low-temperature environment. The mold temperature is high after completing tire vulcanization, and it is not suitable for direct disassembly and assembly of the capsule. The mold temperature needs to be lowered before operation, and the mold needs to be preheated again during the next vulcanization operation. Therefore, heat energy is wasted, the overall vulcanization efficiency is affected, and energy saving and emission reduction are not conducive.

[0005] In view of the above problems, it is necessary to design a tire vulcanization device capable of quickly disassembling and replacing capsules to meet the production demand of speed increase and efficiency improvement. SUMMARY

[0006] In view of the problems existing in the prior art, the present application provides a tire vulcanization device capable of quickly replacing capsules, which can realize quick disassembly and assembly of the capsules and improve the replacement efficiency. The disassembly and assembly operation can be performed when the mold still has a certain temperature, which is energy-saving and environmentally friendly.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0008] The present application provides a tire vulcanization device capable of quickly replacing capsules, which comprises a lower clamping assembly and a ring seat, the lower clamping assembly is arranged on the ring seat, the lower clamping assembly comprises a lower clamping ring and a lower steel ring, the lower steel ring is fixedly connected with the ring seat, and the lower clamping ring is located on the upper side of the lower steel ring and can be lifted relative to the lower steel ring.

[0009] The lower side of the lower clamp ring is provided with a tension ring, which comprises an axial extension and a radial extension, the axial extension is fixedly connected with the lower side of the lower clamp ring and extends downward along the axial direction; the radial extension is fixedly arranged at the lower end of the axial extension and extends to the inner side or the outer side of the axial extension in the radial direction;

[0010] The ring seat is provided with a guide hole, a pull rod is arranged in the guide hole, the pull rod can move up and down and rotate relative to the guide hole; the upper end of the pull rod is provided with a limiting part, the limiting part is between the radial extension and the lower side of the lower clamp ring, the limiting part can rotate to a locked position which overlaps the radial extension up and down or an unlocked position which overlaps the radial extension up and down;

[0011] The ring seat is provided with a driving assembly, when the capsule is disassembled, the driving assembly drives the pull rod to first ascend along the axial direction and then ascend while rotating, the limiting part rotates to the unlocked position after the lower clamp ring ascends to release the capsule; when the capsule is assembled, the driving assembly drives the pull rod to first descend while rotating and then descend along the axial direction, the limiting part rotates to the locked position and the lower clamp ring clamps the capsule.

[0012] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the driving assembly comprises a rotating seat, a driving element and a rotating control element; the lower end of the pull rod is connected with the driving element through the rotating seat, the driving element drives the rotating seat to ascend and descend, the pull rod ascends and descends synchronously with the rotating seat and can rotate relatively; the rotating control element can control the rotation of the pull rod.

[0013] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the rotating control element is a guide sleeve, the guide sleeve is fixed on the ring seat and coaxial with the guide hole; a first guide groove is arranged on the inner wall of the guide sleeve, the first guide groove comprises a first groove part and a second groove part, the first groove part extends axially, the second groove part spirally ascends and the lower end communicates with the upper end of the first groove part;

[0014] The pull rod is slidingly arranged in the guide sleeve and has a guide part which extends into the first guide groove, the guide part slidingly cooperates with the first guide groove.

[0015] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the driving element is a mechanical self-locking hydraulic oil cylinder;

[0016] And / or, the first guide groove penetrates the inner wall of the guide sleeve.

[0017] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the rotating control element is a swing oil cylinder, which is fixedly installed on the rotating seat and can drive the pull rod to rotate.

[0018] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, a synchronous driving plate is further included, which is fixedly connected with a plurality of rotating seats simultaneously.

[0019] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the driving assembly includes a rotary hydraulic cylinder, the piston rod of the rotary hydraulic cylinder is connected with the pull rod and rotates and lifts synchronously, the piston rod is provided with a second guide groove, the second guide groove includes a third groove part and a fourth groove part, the third groove part spirally rises and the upper end thereof communicates with the fourth groove part, the fourth groove part extends axially, a guide column is fixedly arranged on the cylinder body of the rotary hydraulic cylinder, the guide column extends into the second guide groove and the two are in sliding fit.

[0020] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the lower side of the lower clamping ring is provided with an avoiding groove, the avoiding groove is located in correspondence with the position of the radial extension part, and the limiting part is located in the area surrounded by the avoiding groove and the radial extension part.

[0021] And / or, an upper clamping assembly is further included, the upper clamping assembly includes an upper clamping ring and an upper steel ring, the upper clamping ring and the upper steel ring are detachably connected, and the upper clamping ring is provided with an ear.

[0022] And / or, the lower steel ring is sleeved outside the ring seat, the inner side of the lower steel ring is provided with a first clamping tooth, the outer side wall of the ring seat is provided with a second clamping tooth, and the first clamping tooth and the second clamping tooth cooperate to axially limit the lower steel ring.

[0023] And / or, the lower steel ring and the ring seat are circumferentially positioned by using a positioning pin.

[0024] And / or, the radial extension part extends to the radial inner side of the axial extension part.

[0025] In the above-mentioned tire vulcanizing device capable of quickly replacing the capsule, the lower side of the lower clamping ring is provided with a positioning groove, the upper side of the lower steel ring is provided with an upwardly protruding capsule positioning table, the capsule positioning table extends into the positioning groove, and the two cooperate to radially position the lower steel ring and the lower clamping ring.

[0026] In the tire vulcanization device with replaceable capsules, the lower side of the lower clamping ring is provided with a first capsule clamping groove, which is located on the radial outer side of the positioning groove; the upper side of the lower steel ring is provided with a second capsule clamping groove, which is located on the radial outer side of the capsule positioning table; the second capsule clamping groove and the first capsule clamping groove are opposite and cooperate to clamp the capsule;

[0027] And / or, the tension ring can extend throughout the circumference, or the tension ring is distributed in a dot shape in the circumferential direction of the ring seat.

[0028] The beneficial effects of the present application are as follows:

[0029] The tire vulcanization device with replaceable capsules can control the lower clamping ring by controlling the pull rod, and the pull rod and the lower clamping ring are simple to disassemble and assemble; the lower side of the lower clamping ring is provided with a tension ring, which cooperates with the limiting part of the pull rod; in the vulcanization production process, the lower clamping ring is clamped by the limiting part and the pull rod exerts a downward force on the lower clamping ring, so that the lower clamping ring and the lower steel ring cooperate to clamp the capsule; when replacing the capsule, the pull rod is lifted and rotated at the end of the lifting and at the beginning of the lowering, so that the pull rod is lifted and rotated at the same time, which not only makes the lower clamping ring move away from or close to the lower steel ring, but also completes the relative rotation of the limiting part and the lower clamping ring, that is, the pull rod and the lower clamping ring are disconnected or connected; therefore, the capsule disassembly and the lower clamping ring disassembly can be achieved by controlling the movement of the pull rod, without manual operation, which shortens the replacement time of the capsule and the lower clamping ring, improves the replacement efficiency, and improves the vulcanization production efficiency of the tire;

[0030] The cooperation of the pull rod, the guide sleeve and the lower clamping ring makes the pull rod still connected with the lower clamping ring when the capsule is disassembled, so that the lower clamping ring is prevented from being dragged away from the pull rod due to the adhesion of the capsule to the lower clamping ring; the lower steel ring is limited in the circumferential and axial directions and is convenient to disassemble and assemble, and the position accuracy of the lower steel ring is not affected during the disassembly and assembly of the capsule.

[0031] The pull rod can be controlled to release the clamping of the capsule, so that the capsule can be disassembled from the ring seat when the mold is still at a high temperature, which reduces heat loss compared with the low-temperature manual disassembly of the capsule in the prior art, correspondingly reduces the preheating time required for the mold to produce again, saves energy, and brings higher benefits to the tire factory.

[0032] The clamping of the lower clamping ring and the lower steel ring, and the connection of the lower steel ring and the ring seat all avoid the use of bolts and screws, which are convenient to disassemble and assemble, and can avoid problems such as thread connection failure and locking caused by temperature change.

[0033] The lower clamping ring and the lower steel ring are radially positioned by the cooperation of the positioning groove and the capsule positioning table; at the same time, the capsule positioning table can abut against the lower clamping edge of the capsule to position the capsule, which is simple to operate and has high positioning accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The overall structure schematic diagram of the tire vulcanizing device with replaceable capsules in the application;

[0035] Figure 2 The overall structure schematic diagram of the tire vulcanizing device with replaceable capsules in the application; Figure 1 The enlarged view of area A in the middle;

[0036] Figure 3 The bottom view of the lower rim;

[0037] Figure 4 The bottom view of the ring seat;

[0038] Figure 5 The structure schematic diagram of the guide sleeve;

[0039] Figure 6 The structure schematic diagram of the pull rod;

[0040] Figure 7 The structure schematic diagram of the pull rod driven by the swing oil cylinder to rotate;

[0041] Figure 8 The structure schematic diagram of the pull rod driven by the rotary hydraulic cylinder to rotate and lift;

[0042] Figure 9 The partial structure schematic diagram of the piston rod of the rotary hydraulic cylinder.

[0043] In the figure:

[0044] 1-ring seat; 2-lower clamping ring; 3-positioning pin; 4-lower rim; 5-synchronous driving plate; 6-guide part; 7-upper rim; 8-guide sleeve; 9-pull rod; 10-rotation seat; 11-upper clamping ring; 12-driving element; 13-second capsule clamping groove; 14-capsule positioning table; 15-first capsule clamping groove; 16-positioning groove; 17-axial extension part; 18-radial extension part; 19-limiting part; 20-first through groove; 21-second clamping tooth; 22-guide hole; 23-second through groove; 24-avoidance groove; 25-first groove part; 26-second groove part; 27-first clamping tooth; 28-rotary hydraulic cylinder; 29-piston rod; 30-third groove part; 31-swing oil cylinder; 32-fourth groove part. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of those skilled in the art, the application is further described below in combination with the drawings.

[0046] Please refer to Figures 1-9 A tire vulcanizing device with replaceable capsules includes an upper clamping assembly, a lower clamping assembly, a ring seat 1 and a center mechanism. Among them, as shown in Figure 1As shown, the ring seat 1 is centrally provided with a through hole, and a center mechanism is arranged in the through hole and can be controlled to lift; the upper clamping assembly is arranged on the center mechanism and acts under the control of the center mechanism, and the lower clamping assembly is arranged on the ring seat 1. The ring seat 1 and the center mechanism are existing structures, and no improvement is made in the present application, so they are not shown in detail in the drawings, and will not be described here. The upper clamping assembly includes an upper clamping ring 11 and an upper steel ring 7, which cooperate to clamp the upper clamping edge of the capsule; the upper clamping ring 11 and the upper steel ring 7 are detachably connected by bolts, so as to facilitate replacement of the capsule; at the same time, the upper clamping ring 11 is detachably connected with the center rod of the center mechanism by bolts. The lower clamping assembly includes a lower clamping ring 2 and a lower steel ring 4; wherein the lower steel ring 4 is fixedly connected with the ring seat 1, and the lower clamping ring 2 is located on the upper side of the lower steel ring 4 and can be lifted relative to the lower steel ring 4, so as to clamp or release the lower clamping edge of the capsule.

[0047] Further, a lifting lug is arranged on the upper clamping ring 11, and hoisting machinery can be used to assist in replacing the capsule; that is, after the upper clamping ring 11 is separated from the center rod and the lower clamping ring 2 and the lower steel ring 4 release the lower clamping edge of the capsule, the hoisting machinery can use the lifting lug as a lifting point to lift the capsule together with the upper clamping ring 11 and the upper steel ring 7 away from the tire mold, and then the operation of replacing the capsule can be performed.

[0048] The lower steel ring 4 is sleeved on the outer side of the ring seat 1 and is connected by staggered teeth, which facilitates disassembly and avoids the problem that the existing threaded connection mode is easy to lock. Figure 3 Figure 4 As shown in Figs. 1 and 2, the mating surfaces of the lower steel ring 4 and the ring seat 1 which extend axially are respectively provided with first clamping teeth 27 and second clamping teeth 21; wherein the first clamping teeth 27 are arranged on the inner side of the lower steel ring 4, a plurality of first clamping teeth 27 are arranged at intervals in the circumferential direction of the lower steel ring 4, and a first through slot 20 is formed between two first clamping teeth 27; the second clamping teeth 21 are arranged on the outer side wall of the ring seat 1, a plurality of second clamping teeth 21 are arranged at intervals upwardly on the ring seat 1, and a second through slot 23 is formed between two adjacent second clamping teeth 21. When the lower steel ring 4 is assembled with the ring seat 1, the first clamping teeth 27 are first aligned with the second through slot 23, and the second clamping teeth 21 are then aligned with the first through slot 20, and then the lower steel ring 4 is moved axially and then rotated relative to the ring seat 1, so that the first clamping teeth 27 and the second clamping teeth 21 are aligned, thereby achieving axial positioning of the lower steel ring 4 and preventing the lower steel ring 4 from being lifted by the capsule when the capsule is disassembled. Figure 2 As shown in Fig. 3, the lower steel ring 4 and the ring seat 1 are circumferentially positioned by a positioning pin 3, and the connection between the lower steel ring 4 and the ring seat 1 cancels the existing threaded connection mode of connection screws, bolts, etc., so that the assembly and disassembly between parts are more convenient and fast, and the installation time is reduced.

[0049] Please refer to Figure 2 ​The lower side of the lower clamping ring 2 is provided with a first capsule clamping groove 15 and a positioning groove 16, which are recessed in the lower side of the lower clamping ring 2; the first capsule clamping groove 15 is located radially outside the positioning groove 16. The upper side of the lower steel ring 4 is provided with a capsule positioning platform 14, which is located correspondingly to the positioning groove 16, and the capsule positioning platform 14 extends into the positioning groove 16, and the two cooperate to quickly position the lower steel ring 4 and the lower clamping ring 2 radially. The radially outer side of the capsule positioning platform 14 is provided with a second capsule clamping groove 13, which is opposite to the first capsule clamping groove 15 and cooperates to clamp the lower clamping edge of the capsule.

[0050] Further, the outer side of the capsule positioning platform 14 is the inner side groove wall surface of the second capsule clamping groove 13, so that the lower clamping edge of the capsule abuts against the outer side of the capsule positioning platform 14 after being installed in place, and the contact surface is large, facilitating the installation and positioning of the capsule; in actual operation, the capsule can be confirmed to be installed in place only by tightly contacting the lower clamping edge of the capsule with the outer side of the capsule positioning platform 14, reducing the capsule loading and unloading time.

[0051] It can be understood that the second capsule clamping groove 13 and the first capsule clamping groove 15 are both annular grooves to match the lower clamping edge of the capsule; the positioning groove 16 and the capsule positioning platform 14 are preferably annular, which is convenient for processing and also facilitates the cooperation of the lower steel ring 4 and the lower clamping ring 2 to clamp the capsule; however, in some embodiments, the positioning groove 16 and the capsule positioning platform 14 can be provided as multiple and spaced apart in the circumferential direction, which can also achieve the positioning of the lower clamping edge of the capsule and the radial positioning of the lower steel ring 4 and the lower clamping ring 2.

[0052] The lower side of the lower clamping ring 2 is further provided with a tension ring, which is located radially inside the positioning groove 16; the tension ring can extend in the entire circumferential direction, i.e. 360° around the outside of the ring seat 1; or it can be provided as multiple and distributed in a dot shape in the circumferential direction of the ring seat 1. The tension ring comprises an axial extension 17 and a radial extension 18, the axial extension 17 is fixedly connected with the lower side of the lower clamping ring 2 and extends downward along the axial direction; the radial extension 18 is fixedly arranged at the lower end of the axial extension 17 and extends radially inward or outward.

[0053] Preferably, the radially outer side of the axial extension 17 coincides with the radially inner side groove wall surface of the positioning groove 16, and the radial extension 18 extends to the radially inner side of the axial extension 17, i.e. away from the positioning groove 16; at this time, the outer side of the axial extension 17 is coplanar with the inner side groove wall of the positioning groove 16, which can increase the cooperation and contact surface of the positioning groove 16 and the capsule positioning platform 14, the radial positioning is reliable and has high accuracy; at the same time, the radial structure of the lower clamping ring 2 is more compact, which can reduce the radial size of the lower clamping ring 2. In addition, the lower end of the outer side of the axial extension 17 is provided with a bevel, which can expand the size of the opening of the positioning groove 16, guide the capsule positioning platform 14 into the positioning groove 16, and facilitate installation.

[0054] The ring seat 1 is provided with a guide hole 22, and the guide hole 22 and the radial extension 18 are located on the same side of the axial extension 17. For the case that the radial extension 18 is located on the radial outer side of the axial extension 17, the guide hole 22 is arranged on the radial outer side of the radial extension 18; for the case that the radial extension 18 is located on the radial inner side of the axial extension 17, as shown in Figure 2 , the guide hole 22 is located on the radial inner side of the radial extension 18. The guide hole 22 and the radial extension 18 are arranged in a staggered manner in the up-down direction, and the guide hole 22 is provided with a pull rod 9, which can move and rotate relative to the ring seat 1; the pull rod 9 extends on both sides of the ring seat 1 in the up-down direction, as shown in Figure 6 , the upper end of the pull rod 9 is provided with a limiting portion 19, and the limiting portion 19 is located above the radial extension 18. The limiting portion 19 and the pull rod 9 can be T-shaped, L-shaped, etc., and can be integrated or in a split style. When the pull rod 9 is rotated, the limiting portion 19 rotates between two limit positions, which are a locking position and an unlocking position, respectively. When the limiting portion 19 is in the locking position, the limiting portion 19 is located between the radial extension 18 and the lower side of the lower clamping ring 2, and the limiting portion 19 and the radial extension 18 overlap in the up-down direction. At this time, the pull rod 9 will contact the lower side of the lower clamping ring 2 when it moves upward, and will be in close contact with the upper side of the radial extension 18 when it moves downward; when the limiting portion 19 is in the unlocking position, the limiting portion 19 and the radial extension 18 are staggered in the up-down direction. At this time, the lower clamping ring 2 can move upward to separate from the pull rod 9.

[0055] Further, the lower side of the lower clamping ring 2 is provided with an avoiding groove 24, and the avoiding groove 24 is located corresponding to the position of the radial extension 18; the distance between the radial extension 18 and the bottom wall of the avoiding groove 24 is slightly greater than the height of the limiting portion 19 (i.e. the distance between the upper and lower sides of the limiting portion 19). When the limiting portion 19 is in the locking position, the limiting portion 19 is located in the area surrounded by the avoiding groove 24 and the radial extension 18, and the position of the limiting portion 19 is limited in the axial direction and the radial direction, so that the pull rod 9 is not easy to separate from the lower clamping ring 2; when the limiting portion 19 is in the unlocking position, the limiting portion 19 is located on the radial inner side of the radial extension 18 and on the outer side of the groove wall of the avoiding groove 24 away from the axial extension 17, so that the lower clamping ring 2 can move axially to separate from the pull rod 9.

[0056] The ring seat 1 is provided with a driving assembly for controlling the action of the pull rod 9; in cooperation with the tension ring, when the capsule is disassembled, the pull rod 9 first moves axially upward to release the clamping of the lower clamping ring 2 on the capsule, and then rotates upward, so that the pull rod 9 moves upward at the same time, and the limiting portion 19 rotates from the locking position to the unlocking position, and rotates away from the radial extension 18 to release the connection between the lower clamping ring 2 and the pull rod 9. In this way, the disassembly of the capsule and the lower clamping ring 2 can be achieved by controlling the movement of the pull rod 9, so that the capsule can be disassembled from the ring seat 1 while the tire mold is still at a high temperature.

[0057] As a first embodiment of the driving assembly, as shown in Figure 1 ,Figure 5 and Figure 6 As shown in FIG. 1, the device comprises a rotating seat 10, a driving element 12 and a rotating control element. The lower end of the pull rod 9 is connected to the driving element 12 through the rotating seat 10. The pull rod 9 can be lifted synchronously with the rotating seat 10 or can rotate relative to the rotating seat 10. The driving element 12 is fixedly connected to the ring seat 1 through a support or other element and is fixed in position. The driving element 12 exerts an upward thrust or a downward pull on the rotating seat 10 to drive the rotating seat 10 to lift and lower, and the pull rod 9 is lifted and lowered accordingly. The driving element 12 is preferably a mechanical self-locking hydraulic cylinder, which can achieve self-locking and ensure that the pull rod 9 driven by the piston rod of the hydraulic cylinder has a persistent tension, so that the lower clamping ring 2 and the lower steel ring 4 clamp the capsule. A common structure hydraulic cylinder or air cylinder can also be used to achieve clamping of the lower clamping ring 2 and the lower steel ring 4 by pressure retention.

[0058] The rotating control element is used to control the rotation of the pull rod 9 between the locked position and the unlocked position. For example, the rotating control element is a guide sleeve 8, which is fixed on the lower side of the ring seat 1 coaxially with the guide hole 22. The pull rod 9 passes through the guide sleeve 8 and the two are in sliding fit. The driving element 12 drives the pull rod 9 to move up and down, and the lower clamping ring 2 moves up and down with the pull rod 9. The guide sleeve 8 guides the movement path of the pull rod 9, which not only can achieve automatic disassembly and installation of the lower clamping ring 2, but also can achieve automatic locking and disassembly of the lower clamping ring 2 and the lower steel ring 4 on the lower clamping edge of the capsule, reducing manual operation.

[0059] Specifically, the guide sleeve 8 is provided with a first guide groove, which is arranged on the inner wall of the guide sleeve 8. Preferably, the first guide groove penetrates the side wall of the guide sleeve 8 for easy processing. The first guide groove comprises a first groove portion 25 and a second groove portion 26. The first groove portion 25 is located below the second groove portion 26. The first groove portion 25 extends axially, and the second groove portion 26 is spirally arranged and communicates with the upper end of the first groove portion 25. The second groove portion 26 has both axial extension and circumferential extension. The pull rod 9 has a guide portion 6 extending into the first guide groove, and the guide portion 6 is in sliding fit with the first guide groove.

[0060] When the driving element 12 pushes the pull rod 9 upward, the guide portion 6 cooperates with the first guide groove to guide the pull rod 9 to move axially upward along the first groove portion 25 and then to move upward while rotating along the second groove portion 26. The pull rod 9 moves axially to push the lower clamping ring 2 to rise, thereby releasing the clamping of the lower clamping edge of the capsule, and the lower clamping edge is separated from the lower clamping ring 2 and the lower steel ring 4. At this time, the limiting portion 19 of the pull rod 9 still has an overlapping area with the radial extension portion 18, maintaining the limiting of the lower clamping ring 2, so that the lower clamping ring 2 can be prevented from being dragged away by the capsule. During the process of the pull rod 9 moving upward while rotating along the second groove portion 26, the pull rod 9 not only has an upward movement, but also has a certain amount of rotation in the circumferential direction, for example, 90°, so that the limiting portion 19 of the pull rod 9 is disengaged from the radial extension portion 18 and no longer overlaps with the radial extension portion 18. At this time, the lower clamping ring 2 can be taken out upward or placed downward on the upper end of the pull rod 9.

[0061] When the driving element 12 pulls the pull rod 9 downward in the axial direction, the process is opposite to the foregoing process; before the lower clamping ring 2 contacts the lower clamping edge of the capsule, the pull rod 9 moves downward along the second groove portion 26 while rotating, the limiting portion 19 and the lower clamping ring 2 move downward together and the limiting portion 19 rotates to have an overlapping area with the radially extending portion 18, achieving the connection of the pull rod 9 and the lower clamping ring 2 while the lower clamping ring 2 gradually approaches the lower steel ring 4; the pull rod 9 continues to move downward along the first groove portion 25, the lower clamping ring 2 approaches the lower steel ring 4, and gradually clamps the lower clamping edge of the capsule. During the above-mentioned movement process of the pull rod 9, the pull rod 9 rotates in some stages, which reduces the disassembly and assembly time of the lower clamping ring 2.

[0062] As a second embodiment of the driving assembly, as shown in Figure 7 different from the first embodiment, the rotating control element is a swing oil cylinder 31; the swing oil cylinder 31 is fixedly installed on the rotating seat 10, and the piston rod drives the pull rod 9 to rotate through a gear transmission assembly or the like. The combination of the control of the driving element 12 and the swing oil cylinder 31 achieves the control of the pull rod 9. The swing oil cylinder 31 and the transmission of the piston rod and the pull rod 9 are prior art, which will not be described here.

[0063] In the first and second embodiments of the foregoing driving assembly, the number of the pull rods 9 can be set as needed, preferably a plurality of pull rods 9 are provided, and the plurality of pull rods 9 are uniformly distributed in the circumferential direction; for example, the number of the pull rods 9 is four.

[0064] Further, the lower ends of the four pull rods 9 are connected to the synchronous driving plate 5 through the rotating seat 10, the synchronous driving plate 5 is annular, and the introduction of the synchronous driving plate 5 connects the pull rods 9 in parallel, preventing the pull rods 9 from being stuck out of synchronization, and the synchronous driving plate 5 can also be pushed and pulled by one driving element 12, thereby synchronously driving the four pull rods 9. Of course, according to the power requirement, the synchronous driving plate 5 can also be driven by multiple driving elements 12 at the same time, for example, four driving elements 12 are provided corresponding to the pull rods 9, that is, one driving element 12 corresponds to one pull rod 9.

[0065] As a third embodiment of the driving assembly, as shown in Figure 8 , Figure 9As shown, the upper clamping assembly comprises a rotary hydraulic cylinder 28, a piston rod 29 of the rotary hydraulic cylinder 28 is connected with the pull rod 9, and rotates and lifts synchronously. The piston rod 29 and the pull rod 9 can be an integral structure, or can be fixedly connected through a coupling or the like. An outer side wall of the piston rod 29 is provided with a second guide groove, the second guide groove comprises a third groove portion 30 and a fourth groove portion 32, the third groove portion 30 is located at the lower side of the fourth groove portion 32; the third groove portion 30 spirally rises, the upper end is communicated with the fourth groove portion 32, and the fourth groove portion 32 extends axially. A guide column is fixedly arranged on the cylinder body of the rotary hydraulic cylinder 28, the guide column extends into the second guide groove, and the two are in sliding fit. Since the guide column is fixed, when the piston rod 29 moves, the guide column first slides with the fourth groove portion 32, and the piston rod 29 moves axially; when the guide column enters the third groove portion 30 from the fourth groove portion 32, the piston rod 29 rotates and rises.

[0066] The tire vulcanizing device is provided with the upper clamping assembly and the lower clamping assembly, and the capsule can be operated mechanically during dismounting, and the pull rod 9 can be driven by the driving element 12, so that the capsule can be dismounted without waiting for the mold to cool.

[0067] The preferred embodiments of the present application are described above, but the present application is not limited to the above. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tyre vulcanisation apparatus with quick changeable capsules, comprising a lower clamping assembly and a ring seat (1), said lower clamping assembly being arranged on said ring seat (1); characterised in that, The lower clamping assembly comprises a lower clamping ring (2) and a lower steel ring (4); the lower steel ring (4) is fixedly connected with the ring seat (1), and the lower clamping ring (2) is located on the upper side of the lower steel ring (4) and can be lifted relative to the lower steel ring (4); The lower side of the lower clamping ring (2) is provided with a tension ring, which comprises an axial extension (17) and a radial extension (18); the axial extension (17) is fixedly connected with the lower side of the lower clamping ring (2) and extends downward in the axial direction; the radial extension (18) is fixedly arranged at the lower end of the axial extension (17) and extends to the inner side or the outer side of the axial extension (17) in the radial direction; The ring seat (1) is provided with a guide hole (22), and a pull rod (9) is arranged in the guide hole (22); the pull rod (9) can move up and down and rotate relative to the guide hole (22); the upper end of the pull rod (9) is provided with a limiting portion (19); the limiting portion (19) is located between the radial extension (18) and the lower side of the lower clamping ring (2); the limiting portion (19) can rotate to a locked position in which the radial extension (18) and the lower clamping ring (2) overlap each other or an unlocked position in which the radial extension (18) and the lower clamping ring (2) are staggered; The ring seat (1) is provided with a driving assembly; when the capsule is disassembled, the driving assembly drives the pull rod (9) to first ascend in the axial direction and then ascend while rotating; after the lower clamping ring (2) is lifted to release the capsule, the limiting portion (19) rotates to the unlocked position; when the capsule is assembled, the driving assembly drives the pull rod (9) to first descend while rotating and then descend in the axial direction; after the limiting portion (19) rotates to the locked position, the lower clamping ring (2) clamps the capsule.

2. A tire curing apparatus with quick changeable capsules according to claim 1, characterized in that, The driving assembly comprises a rotating seat (10), a driving element (12) and a rotating control element; the lower end of the pull rod (9) is connected with the driving element (12) through the rotating seat (10); the driving element (12) drives the rotating seat (10) to lift; the pull rod (9) lifts and rotates synchronously with the rotating seat (10); the rotating control element can control the rotation of the pull rod (9).

3. A tyre vulcanisation apparatus with quick exchangeable capsules according to claim 2, characterised in that, The rotating control element is a guide sleeve (8); the guide sleeve (8) is fixed on the ring seat (1) and coaxial with the guide hole (22); the inner wall of the guide sleeve (8) is provided with a first guide groove; the first guide groove comprises a first groove portion (25) and a second groove portion (26); the first groove portion (25) extends in the axial direction; the second groove portion (26) spirally ascends and is communicated with the upper end of the first groove portion (25); The pull rod (9) is slidingly arranged in the guide sleeve (8) and has a guide portion (6) extending into the first guide groove; the guide portion (6) is slidingly matched with the first guide groove.

4. A tyre curing apparatus with quick changeable capsules according to claim 3, characterized in that, The driving element (12) is a mechanical self-locking hydraulic oil cylinder; The first guide groove penetrates the inner wall of the guide sleeve (8).

5. A tire curing apparatus with quick changeable capsules according to claim 2, characterized in that, The rotating control element is a swing oil cylinder (31); the swing oil cylinder (31) is fixedly arranged on the rotating seat (10) and can drive the pull rod (9) to rotate.

6. A tire curing press of the type described in claim 2 wherein, Also include a synchronous drive plate (5), the synchronous drive plate (5) is fixedly connected with multiple rotating seat (10) simultaneously.

7. A tire vulcanizing device with a quickly replaceable bladder according to claim 1, characterized in that, The driving assembly comprises a rotary hydraulic cylinder (28), the piston rod (29) of the rotary hydraulic cylinder (28) is connected with the pull rod (9), and synchronous rotation and lifting are realized;The piston rod (29) is provided with a second guide groove, and the second guide groove comprises a third groove portion (30) and a fourth groove portion (32), the third groove portion (30) is helical upward, and the upper end is communicated with the fourth groove portion (32), and the fourth groove portion (32) extends axially;The cylinder body of the rotary hydraulic cylinder (28) is fixedly provided with a guide column, the guide column extends into the second guide groove and is in sliding fit with the second guide groove.

8. A tire curing press having quick change capsules according to claim 1 wherein, The lower side of the lower clamping ring (2) is provided with an avoiding groove (24), and the avoiding groove (24) is located in the position corresponding to the radial extension (18);The limiting portion (19) is located in the area surrounded by the avoiding groove (24) and the radial extension (18); And / or, the upper clamping assembly comprises an upper clamping ring (11) and an upper steel ring (7), the upper clamping ring (11) and the upper steel ring (7) are detachably connected, and the upper clamping ring (11) is provided with lifting lugs; And / or, the lower steel ring (4) is sleeved outside the ring seat (1), the inner side of the lower steel ring (4) is provided with a first clamping tooth (27), the outer side wall of the ring seat (1) is provided with a second clamping tooth (21), and the first clamping tooth (27) and the second clamping tooth (21) cooperate to limit the axial position of the lower steel ring (4); And / or, the lower steel ring (4) and the ring seat (1) are circumferentially positioned by the positioning pin (3). And / or, the radial extension (18) extends to the radial inner side of the axial extension (17).

9. A rapid exchange capsule tire curing device according to claim 1, wherein, The lower side of the lower clamping ring (2) is provided with a positioning groove (16), and the upper side of the lower steel ring (4) is provided with an upwardly protruding capsule positioning table (14), the capsule positioning table (14) extends into the positioning groove (16), and the two cooperate to position the lower steel ring (4) and the lower clamping ring (2) radially.

10. A tyre curing apparatus with quick changeable capsules according to claim 9, characterized in that, The lower side of the lower clamping ring (2) is provided with a first capsule clamping groove (15), and the first capsule clamping groove (15) is located on the radial outer side of the positioning groove (16); The upper side of the lower steel ring (4) is provided with a second capsule clamping groove (13), and the second capsule clamping groove (13) is located on the radial outer side of the capsule positioning table (14); The second capsule clamping groove (13) and the first capsule clamping groove (15) are opposite, and cooperate to clamp the lower clamping edge of the capsule; And / or, the tension ring can extend in the whole circumference, or the tension ring is distributed in the circumference of the ring seat (1) in point form.

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