CN217574150U - Gas pressurization mechanism and vulcanizing machine and vulcanizing system comprising same - Google Patents

Abstract

The utility model discloses a vulcanizer and vulcanization system that is used for tire vulcanizer's gaseous loading system and contains it. The utility model discloses a gas pressurizing mechanism, which comprises a cylinder body, a piston hermetically arranged with the cylinder body, and a cavity formed by the cylinder body and the piston; the piston is characterized in that an air inlet and an air outlet are formed in the cylinder body, a threaded hole is formed in the middle of the cylinder body, and a through hole is formed in the position, corresponding to the threaded hole, of the middle of the piston. Use vulcanizer and the vulcanization system of the gaseous pressurization mechanism through original design of this application can make full use of gas such as high-pressure nitrogen gas to realize the pressurization function to replace current pressurization mechanisms such as hydraulic cylinder, it is little to have the occupation of land space, convenient to use, advantages such as high-efficient environmental protection.

Description

Gas pressurization mechanism and vulcanizing machine and vulcanizing system comprising same

Technical Field

The utility model belongs to the technical field of tire vulcanization production auxiliary machinery equipment and specifically relates to an utilize gas loading system and use its vulcanizer and vulcanization system of gas such as nitrogen gas as power supply.

Background

The conventional tire vulcanizer adopts a hydraulic cylinder as a pressurizing mechanism. Generally, before a green tire is vulcanized, the green tire is clamped by an upper mold and a lower mold, and the green tire provided with an inflatable bladder is placed in a mold space after the clamping. During the heat vulcanization, a hydraulic ram is used to support the lower mold to ensure that the upper mold and the lower mold are maintained in a closed state during the vulcanization. However, the use of a hydraulic cylinder as the pressurizing mechanism has the following disadvantages: 1. the hydraulic oil cylinder is used and needs to be provided with auxiliary facilities such as a hydraulic station and the like, so that the occupied area is large, the cost is high, and the pipeline arrangement is complex; 2. after the hydraulic oil cylinder is used in long-term operation, the problem of oil leakage often occurs, equipment and working environment are polluted, and the influence on the health of operators is large.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a gas pressurizing mechanism for a tire vulcanizer, which comprises a cylinder body, a piston hermetically arranged with the cylinder body, and a cavity formed by the cylinder body and the piston; the piston is characterized in that an air inlet and an air outlet are formed in the cylinder body, a threaded hole is formed in the middle of the cylinder body, and a through hole is formed in the position, corresponding to the threaded hole, in the middle of the piston.

Preferably, the piston further comprises a lower heat insulator and a lower electric heating plate, wherein the lower heat insulator is arranged at the upper part of the piston, and the lower electric heating plate is arranged at the upper part of the lower heat insulator.

Preferably, the lower electric heating plate is disposed at an upper portion of the piston.

Preferably, the cylinder body is provided with a bottom and a side wall, the bottom of the cylinder body is provided with an air inlet and an air outlet, the side wall of the cylinder body is provided with a pressure relief hole, and the distance from the pressure relief hole to the bottom is greater than or equal to the pressurization stroke of the gas pressurization mechanism.

The utility model also provides a tire vulcanizer, which comprises a frame; and the upper die assembly is arranged on the frame and can move up and down, and the lower die is arranged below the lower die of the tire vulcanizer.

The utility model also provides a tire vulcanization system, including high pressure vulcanization medium air feed jar and vulcanization medium recovery jar, its characterized in that: the tire vulcanizing system comprises the tire vulcanizing machine, the high-pressure vulcanizing medium air supply tank is communicated with an air inlet of the cylinder body, and the vulcanizing medium recovery tank is communicated with an air outlet of the cylinder body.

Drawings

Fig. 1 is a schematic view of the whole gas pressurizing mechanism provided with a lower electric heating plate and a lower heat insulating member.

Fig. 2 is a schematic view of the whole gas pressurizing mechanism without the lower electric heating plate and the lower heat insulation member of the present invention.

Fig. 3 is a bottom view of fig. 2.

Fig. 4 is a top view of fig. 2.

Fig. 5 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of the gas pressurization mechanism of fig. 2 when unventilated.

Fig. 6 is an enlarged schematic view at B in fig. 5.

Fig. 7 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of the gas pressurization mechanism of fig. 2 during venting.

Fig. 8 is a schematic view of the center mechanism of the present invention.

Fig. 9 is a partial schematic view of the center mechanism of the present invention.

Fig. 10 is a partial schematic view of the mold adjusting mechanism of the present invention.

Fig. 11 is a partial schematic view of a center mechanism according to another embodiment of the present invention.

Fig. 12 is a partial schematic view of the new energy vulcanizing machine of the present invention.

Fig. 13 is a partial schematic view of fig. 12.

Fig. 14 is a schematic diagram of the new energy vulcanization system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below.

It should be noted that, gaseous loading system, it is applicable when vulcanizing the child base in the new forms of energy vulcanizer, need put through high pressure vulcanization medium, the vulcanization medium is preferred pure nitrogen gas, and the utility model discloses the vulcanization medium that gaseous loading system used is the high pressure vulcanization medium (high-pressure nitrogen gas promptly) that the vulcanizer was vulcanized the time spent, so the utility model discloses can the current vulcanization medium of make full use of, occupation of land space is little, and high-efficient environmental protection. And simultaneously, the utility model discloses equally can be applied to the traditional vulcanizer that reforms transform the loading system such as hydraulic cylinder into gaseous loading system. The following description is given by taking the new energy vulcanizing machine as an example.

As shown in fig. 1 to 11, the present invention discloses a center mechanism 1 suitable for a new energy vulcanizing machine, which includes a stretching mechanism for stretching an inflatable bladder; and a demolding mechanism for separating the vulcanized tire from the lower mold; and a gas pressurizing mechanism 10 for pressurizing the lower mold during tire vulcanization, wherein the gas pressurizing mechanism utilizes a vulcanizing medium (such as pure nitrogen) used in the case that the bladder is inflated by the new energy vulcanizing machine to realize pressurization.

Specifically, the gas pressurizing mechanism 10 of the present invention includes a cylinder 11, a piston 12 sealed with the cylinder 11, a lower heat insulator 13 and a lower electric heating plate 14; wherein, the cylinder 11 is provided with an air inlet 112 and an air outlet 113, and the lower heat insulator 13 and the lower electric heating plate 14 are sequentially disposed on the upper portion of the piston 12. The piston 12 is arranged in the cylinder 11 and forms a sealed chamber 15 with the cylinder 11, the piston 12 can reciprocate up and down relative to the cylinder 11 after being stressed, and when the high-pressure pure nitrogen filled in the chamber 15 reaches a certain amount, the piston 12 moves upwards under the pressure of the high-pressure nitrogen; after the pure nitrogen in the chamber 15 is exhausted, the piston 12 returns to the initial position under its own weight, i.e. falls back to the bottom of the cylinder 11.

Alternatively, the piston 12 of the gas pressurizing mechanism 10 of the present invention may be made of a heat insulating material, that is, the piston simultaneously functions as a lower heat insulating member, and the lower electric heating plate is disposed on the upper portion of the piston, so that the same function can be realized only by using the piston, thereby reducing the height of the gas pressurizing mechanism 10.

Central mechanism 1 is still including the accent mould mechanism 40 that is used for changing adjustment bed die position behind the different bed die to be applicable to the vulcanization operation of different specification tires. Therefore, the middle part of the cylinder body 11 is provided with a threaded hole 111, and the threaded hole 111 is used for connecting the cylinder body 11 with the mold adjusting mechanism 40 on the center mechanism 1. Specifically, the mold adjusting mechanism 40 is disposed below the cylinder 11; the mold adjusting mechanism 40 comprises a base 41, and a flange stud 431 fixedly arranged on the base 41; the internal thread of the threaded sleeve 432 is connected with the flange stud 431, the external thread of the threaded sleeve 432 is connected with the threaded hole 111 of the cylinder 11, and a gear structure 432A is arranged on the threaded sleeve; and the first driver 421 drives the threaded sleeve 432 to rotate relative to the flange stud 431 and the threaded hole 111 of the cylinder 11 through a first transmission mechanism 422 (such as a gear assembly) and a gear structure 432A, so as to adjust the vertical position of the gas pressurization mechanism 10 and match the heights of lower molds with different specifications. The configuration structure realizes secondary distance adjustment through relative rotation of the threaded sleeve 432 and the threaded hole 111 and relative rotation of the threaded sleeve 432 and the flange stud 431, has a large adjustable distance range, and does not influence the overall height setting of the central mechanism 1.

As another embodiment, as shown in fig. 11, the present invention may further include a rotatable flange stud 432 disposed on the base, for example, a rotating shaft (not shown) is disposed at a lower portion of the flange stud to realize a rotating function of the flange stud, and a gear structure 432A is disposed on the flange stud to connect the threaded hole 111 and the flange stud 432 by a thread; and then the first driver 421 drives the flange stud and the threaded hole 111 to rotate relatively through the first transmission mechanism and the gear structure 432A, so as to realize one-time adjustment of the upper and lower positions of the gas pressurization mechanism 10, and match with lower dies of different specifications.

Furthermore, because the bottom of cylinder body 11 is provided with inlet port 112 and exhaust hole 113, inlet port 112 links to each other with high-pressure nitrogen gas through the trachea and forms air inlet pipeline (not shown), exhaust hole 113 forms exhaust pipeline (not shown) through the trachea connection, air inlet pipeline is the branch of high-pressure vulcanization medium (pure nitrogen gas) passageway that new forms of energy vulcanizer used when aerifing for the capsule, consequently the utility model discloses the high-pressure nitrogen gas that can directly utilize new forms of energy vulcanizer pressurizes. When the capsule is filled with high-pressure pure nitrogen gas, the gas pressurizing mechanism 10 is pressurized through the gas inlet hole 112 at the same time or alternatively; after the pressurization is finished, the air inlet pipeline is communicated and closed through an air outlet pipeline connected with the exhaust hole 113, so that the vulcanizing medium is exhausted to realize pressure relief.

As shown in fig. 5 to 7, the piston 12 of the present invention has a first sidewall 121 (i.e., a sidewall of the threaded hole 111) and a second sidewall 122 (i.e., a sidewall of the cylinder 11) close to the cylinder 11, the first sidewall 121 is provided with a first sealing groove 123, the second sidewall 122 is provided with a second sealing groove 124, and a first sealing ring and a second sealing ring (not shown) are provided in the first sealing groove 123 and the second sealing groove 124, so that a sealed environment is provided in the chamber 15 during the pressurization process.

Furthermore, still be equipped with pressure relief hole 114 on the second lateral wall 122 of cylinder body 11, the distance of pressure relief hole 114 to cylinder body bottom 115 is H, distance H is more than or equal to gaseous pressurization mechanism's pressurization stroke. The reason is that the gas pressurizing mechanism 10 is used for supporting the lower mold 5, when the tire is vulcanized, the upper mold 4 moves downwards to the lower mold to close the mold and cover the green tire (not shown), and if the upper mold does not move downwards in time or the pressurizing mechanism is filled with a vulcanizing medium for pressurizing due to misoperation in the vulcanizing process, the piston 12 moves upwards until being separated from the cylinder 11, so that the potential safety hazard is caused. Therefore, by providing the relief hole 114, when the piston 12 moves upward to the lower bottom surface 125 of the piston 12 beyond the relief hole 114, the gas in the chamber 15 is exhausted through the relief hole 114, the chamber 15 is no longer a closed space, and the piston 12 does not further move upward, thereby ensuring safe operation.

Further, in order to make the cylinder body better bear the pressure and the gravity of the upper and lower molds, a reinforcing rib 116 is arranged at the bottom of the cylinder body.

As shown in fig. 8 and 9, the stretching mechanism of the present invention includes a second driver 241, a second transmission mechanism 242 (such as a gear assembly), an upper ring assembly and a second moving device; the second driver 241 drives the upper ring assembly to move up and down through the second transmission mechanism 242 and the second moving device. Preferably, the upper ring assembly includes an upper ring 211, and an upper ring support rod 212 supporting the upper ring 211, the second moving device includes a lead screw 251 and a lead screw nut 252, the upper ring support rod 212 is connected to the lead screw 251 and disposed through the gas pressurizing mechanism 10, the second driver 241 drives the lead screw nut 252 to rotate via the second transmission mechanism 242, so as to move the lead screw 251 up and down relative to the lead screw nut 252, so as to drive the upper ring support rod 212 and the upper ring 211 to move up and down, thereby achieving the purpose of stretching the capsule (not shown).

Preferably, the utility model also comprises a fixed connecting piece 23, and the demoulding mechanism comprises a third driver 27 and a lower ring component; the lower ring assembly comprises a lower ring 221 and a central member 222 for supporting the lower ring, the central member 222 is sleeved outside the upper ring support rod 212, one end of the central member 222 is connected with the fixed connecting piece 23, the other end of the central member 222 is connected with the lower ring 221, and the upper ring support rod 212 can move up and down relative to the central member 222 under the action of the second moving device; in addition, the second driver 241, the second transmission mechanism 242, the screw nut 252 and the third driver 27 are fixedly arranged at the lower part of the fixed connecting piece 23, the upper part of the fixed connecting piece 23 is connected with the central component 222, the third driver 27 can drive the fixed connecting piece 23 to move up and down, and then the central component 222 drives the upper ring 211 and the lower ring 221 to synchronously move up and down, so as to realize the demoulding action after the vulcanization of the green tire.

As shown in fig. 1 and 13, the present invention further discloses a new energy vulcanizing machine 100 (only a single-station new energy vulcanizing machine is taken as an example for illustration, and the principles of the double stations and the multiple stations are the same), which comprises a frame 2 for supporting and fixing various functional components; the upper die assembly 3 is arranged on the rack 2 and can move up and down, the upper die assembly comprises an upper heat-insulating cover 6, and an upper electric heating plate (not shown), an upper heat-insulating piece (not shown) and an upper die 4 which are arranged in the upper heat-insulating cover 6, and the upper electric heating plate and the upper heat-insulating piece are sequentially arranged from the heating side (namely the outer side) of the upper die 4 to the top direction of the upper heat-insulating cover 6; the lower die 5 is arranged corresponding to the inner side of the upper die 4, and a vulcanization chamber is formed after the upper die and the lower die are assembled; and the center mechanism 1 provided with the gas pressurizing mechanism 10 is adopted, and the lower die is arranged on the gas pressurizing mechanism 10 of the center mechanism 1.

Preferably, as shown in fig. 12 and fig. 13, the central mechanism 1 is fixedly disposed in the lower portion of the frame 2 through a base 41, the side of the frame 2 is provided with a slide rail 21, and a slide block 22 which is matched with the slide rail 21 and is movable, the slide block 22 is fixedly disposed with the piston 12 to prevent the piston 12 from horizontally rotating, so that the piston can only move in the up-and-down direction under the action of high-pressure nitrogen, and the gas pressurizing mechanism 10 can also only move in the up-and-down direction under the action of the mold adjusting mechanism 40.

New forms of energy vulcanizer 100 theory of operation as follows: in the pre-operation, the inflatable capsules are fixedly disposed on the upper ring 211 and the lower ring 221, and then the second driver 241 drives the screw nut 252 to rotate through the second transmission mechanism 242, so that the screw 251 moves upward relative to the screw nut 252, and drives the upper ring support rod 212 and the upper ring 211 to move upward, so as to stretch the capsules (not shown); then, a green tire is grabbed by a tire grabber (not shown) and sleeved outside the stretching bladder of the central mechanism 1, and the upper ring support rod 212 and the upper ring 211 are driven by the second driver 241 to move downwards so as to withdraw the bladder, pre-inflate and shape the bladder, so that the bladder is tightly attached to the inner wall of the green tire and is placed on the lower mold 5; then the upper die assembly 3 moves downwards to enable the upper die 4 and the lower die 5 to be matched and locked; then, high-pressure nitrogen is injected into the capsule to ensure that the green tire is fully contacted with the upper die 4 and the lower die 5, and meanwhile, the high-pressure nitrogen is selectively injected into the gas pressurizing mechanism 10 through a branch high-pressure nitrogen pipeline of the high-pressure nitrogen pipeline; when a green tire is vulcanized, high-pressure nitrogen is filled into a cavity 15 in the gas pressurizing mechanism 10 through an air inlet 112 to generate pressure, so that the piston 12 moves towards one side of the lower die to push the lower die above the piston 12 to move upwards, and further the expansion force of the high-temperature and high-pressure nitrogen on the upper die 4 and the lower die 5 during vulcanization is counteracted, through the gas pressurizing mechanism 10, the upper die 4 and the lower die 5 are always kept in a closed state, and pressurizing mechanisms like hydraulic oil cylinders and the like do not need to be additionally arranged; after the vulcanization of the green tire is finished, high-pressure nitrogen is discharged from the exhaust pipeline through the exhaust hole 113, and the piston 12 resets under the action of the gravity of the piston and falls back to the bottom position of the cylinder body 11; after the high-temperature and high-pressure nitrogen in the bladder is exhausted, the fixed connecting piece 23 is driven to move by the third driver 27 in the demolding mechanism, the upper ring 211 and the lower ring 221 are driven to synchronously move up and down by the central part 222, so that the vulcanized tire is separated from the lower mold, then the bladder is stretched to be separated from the tire, and finally the vulcanized tire is conveyed to the next process.

As shown in fig. 14, the utility model also provides a new forms of energy vulcanization system of utilizing gases such as pure nitrogen as vulcanization medium, it includes: the novel energy vulcanizing machine comprises a pressurizing circulating pump 200 for pressurizing a vulcanizing medium, a heater 300 for heating the vulcanizing medium, an air supply assembly 400 for supplying and recovering the vulcanizing medium, an air exhaust assembly 500 for exhausting or recovering the vulcanizing medium, and an energy storage device 600 arranged on a high-pressure inflating and recovering path, and further comprises the novel energy vulcanizing machine 100, wherein the novel energy vulcanizing machine comprises an upper die 4, a lower die 5, a capsule 7 and an air pressurizing mechanism 10.

Specifically, the gas supply assembly 400 of the present invention includes a high pressure vulcanizing medium gas supply tank 401 for providing high pressure nitrogen gas, a vulcanizing medium recovery tank 402, a shaping tank 403 and a vacuum tank 404, the gas charging hole 112 of the gas pressurizing mechanism 10 is communicated with a high pressure gas charging path 601, the gas discharging hole 113 of the gas pressurizing mechanism 10 is communicated with a high pressure gas discharging path 602, and a pressure regulating valve 701 is provided on the high pressure gas charging path 601 for controlling gas pressure; an on-off valve 702 is provided in the high-pressure exhaust path 602 to switch on and off the pressure in the chamber 15 in the gas pressurizing mechanism 10. When the tire is vulcanized, the pressure regulating valve 701 is opened, and the high-pressure tank 401 fills vulcanization medium high-pressure nitrogen into the gas pressurizing mechanism 10 through the high-pressure inflation path 601 for supporting and keeping the mold closed; after the completion of the vulcanization, the on-off valve 702 in the high-pressure exhaust path is opened, and the high-pressure nitrogen gas in the gas pressurizing mechanism 10 is returned to the recovery tank through the high-pressure exhaust path 602. Gaseous presser and high pressure aerify route and high-pressure exhaust route can be applied to the simplex position of a vulcanizer, also can be used for the multistation of many vulcanizers.

To sum up, the utility model discloses a vulcanizer and vulcanization system that is used for tire vulcanizer's gaseous loading system and contains it. The utility model discloses a gas pressurizing mechanism, which comprises a cylinder body, a piston hermetically arranged with the cylinder body, and a cavity formed by the cylinder body and the piston; the piston is characterized in that an air inlet and an air outlet are formed in the cylinder body, a threaded hole is formed in the middle of the cylinder body, and a through hole is formed in the position, corresponding to the threaded hole, in the middle of the piston. Use vulcanizer and the vulcanization system of the gaseous pressurization mechanism through original design of this application can make full use of gas such as high-pressure nitrogen gas to realize the pressurization function to replace current pressurization mechanisms such as hydraulic cylinder, it is little to have the occupation of land space, convenient to use, advantages such as high-efficient environmental protection.

The above description is only a part of the embodiments of the present application, and is intended to illustrate the technical concept and features of the present application, and any equivalent changes or alternative technical solutions that can be easily conceived by those skilled in the art in light of the technical content of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. A gas pressurization mechanism for a tire vulcanizer, characterized in that: the piston type hydraulic cylinder comprises a cylinder body, a piston and a cavity, wherein the piston is arranged in a sealing mode with the cylinder body, and the cavity is formed by the cylinder body and the piston; the piston is characterized in that an air inlet and an air outlet are formed in the cylinder body, a threaded hole is formed in the middle of the cylinder body, and a through hole is formed in the position, corresponding to the threaded hole, in the middle of the piston.

2. The gas pressurizing mechanism for a tire vulcanizer according to claim 1, wherein: the piston is characterized by further comprising a lower heat insulation piece and a lower electric heating plate, wherein the lower heat insulation piece is arranged on the upper portion of the piston, and the lower electric heating plate is arranged on the upper portion of the lower heat insulation piece.

3. The gas pressurizing mechanism for a tire vulcanizer according to claim 2, wherein: the lower electric heating plate is arranged at the upper part of the piston.

4. A gas pressurizing mechanism for a tire vulcanizing machine according to any one of claims 1 to 3, wherein: the cylinder body is provided with bottom and lateral wall, the bottom of cylinder body is provided with inlet port and exhaust hole, be equipped with the pressure release hole on the lateral wall of cylinder body, just the distance of pressure release hole to bottom is more than or equal to gas pressurization mechanism's pressurization stroke.

5. A tire vulcanizer comprises a frame; and set up in last mould subassembly that can reciprocate in the frame to and bed die, its characterized in that: the gas pressurizing mechanism of any one of the preceding claims 1 to 4 is arranged below a lower die of the tire vulcanizer.

6. The utility model provides a tire vulcanization system, includes that high pressure vulcanization medium supplies gas jar and vulcanization medium to retrieve jar, its characterized in that: the tire vulcanizing system comprises the tire vulcanizing machine as claimed in claim 5, wherein the high-pressure vulcanizing medium supply tank is communicated with the air inlet hole of the cylinder body, and the vulcanizing medium recovery tank is communicated with the air outlet hole of the cylinder body.

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