CN114603754B - Tire vulcanizing device and vulcanizing process thereof - Google Patents
Tire vulcanizing device and vulcanizing process thereof Download PDFInfo
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- CN114603754B CN114603754B CN202210242016.8A CN202210242016A CN114603754B CN 114603754 B CN114603754 B CN 114603754B CN 202210242016 A CN202210242016 A CN 202210242016A CN 114603754 B CN114603754 B CN 114603754B
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- heating
- cover
- plate
- connecting rod
- die
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
Abstract
The invention provides a tire vulcanizing device and a vulcanizing process thereof, comprising the following steps: an integral frame, the top of which is provided with an oil cylinder; the first group of dies are arranged at the top of the second group of dies, the first group of dies comprise a first upper die and a first lower die, and the second group of dies comprise a second upper die and a second lower die; the tire fixing mechanism is arranged at the tops of the first lower die and the second lower die and comprises a capsule and a blank supporting machine; the dustproof cover is sleeved on the outer side of the die, and a vent is arranged on the side wall of the dustproof cover; the exhaust reaction tank is arranged on one side of the integrated frame, and an air exhaust pipeline is connected between the exhaust reaction tank and the ventilation opening, so that the invention has the advantages of vulcanizing according to the size of the tire and reducing the possibility of smoke pollution during vulcanization.
Description
Technical Field
The invention belongs to the technical field of tire vulcanization, and particularly relates to a tire vulcanization device and a tire vulcanization process.
Background
Currently, a tire vulcanizer is an apparatus for converting a tire from a plastic tire into an elastic tire or a hard tire in a tire vulcanizing process, and includes a base, a main transmission mechanism, a center mechanism, a vulcanizing chamber, a tire loading and unloading device, a demolding mechanism, and a control system. The device can complete a series of continuous actions such as grabbing, ascending, turning in and descending of the green tire, accurately sleeving the green tire in a capsule for shaping, closing, ascending, turning out and the like through arranging a mechanical arm.
However, because the tires are different from small tires and large tires, the prior art cannot carry out vulcanization operation according to the types of the tires, thereby reducing the refinement of tire vulcanization.
Disclosure of Invention
The invention provides a tire vulcanizing device and a vulcanizing process thereof, which solve the problems.
The technical scheme of the invention is realized as follows: a tire curing apparatus comprising:
an integral frame, the top of which is provided with an oil cylinder;
the first group of dies are arranged at the top of the second group of dies, the first group of dies comprise a first upper die and a first lower die, and the second group of dies comprise a second upper die and a second lower die;
the tire fixing mechanism is arranged at the top of the first lower die and the second lower die and comprises a capsule and a blank supporting machine;
the dustproof cover is sleeved on the outer side of the die, and a vent is formed in the side wall of the dustproof cover;
waste gas recovery mechanism, including the waste gas retort, the waste gas retort sets up in one side of integral type frame, connect between waste gas retort and the vent and be provided with the pipeline of bleeding.
As a preferred embodiment, a die connecting frame is connected between the first lower die and the second upper die, and the die connecting frame is arranged in a convex shape;
the inner wall of integral type frame is provided with the slide rail, and the slip is provided with first slide and second slide on the slide rail, fixed connection between first slide and the first mould that goes up, fixed connection between second slide and the mould link, is connected through the jib between first mould and the mould link.
As a preferred embodiment, the first lower mold and the second lower mold are provided in a split type;
the first lower die comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the inner ring, the inner ring is fixedly connected with the tire fixing mechanism, a groove part is arranged on the inner side of the outer ring, a protruding part is arranged on the outer side of the inner ring, and the outer ring is connected with the inner ring in a clamping way;
the second lower die comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the inner ring, the inner ring is fixedly connected with the tire fixing mechanism, a groove part is formed in the inner side of the outer ring, a protruding part is arranged on the outer side of the inner ring, and the outer ring is connected with the inner ring in a clamping mode.
As a preferred embodiment, prop embryo machine includes chuck upper cover, chuck lower cover, gas column, support connecting rod and interior head that props, wherein the chuck upper cover sets up in the top of chuck lower cover, fixed connection between chuck lower cover and the inner ring, and the gas column runs through the middle part setting of chuck upper cover and chuck lower cover, and support connecting rod sets up between chuck upper cover and chuck lower cover, is connected between the top of support connecting rod and the bottom surface of chuck upper cover, is connected between the bottom of support connecting rod and the top surface of chuck lower cover, and interior head that props sets up in the outside of support connecting rod.
As a preferred embodiment, a first connecting rod fixing plate is fixedly arranged at the bottom of the chuck upper cover, and a plurality of first connecting rod clamping grooves are uniformly distributed on the outer surface of the side wall of the first connecting rod fixing plate along the circumference;
the top of the chuck lower cover is fixedly provided with a second connecting rod fixing plate, and the outer surface of the side wall of the second connecting rod fixing plate is uniformly provided with a plurality of second connecting rod clamping grooves along the circumference;
the support connecting rod comprises a first connecting rod connecting part and a second connecting rod connecting part, the top end of the first connecting rod connecting part is arranged in a first connecting rod clamping groove, the first connecting rod connecting part is hinged with the first connecting rod fixing plate, the bottom end of the second connecting rod connecting part is arranged in a second connecting rod clamping groove, the second connecting rod connecting part is hinged with the second connecting rod fixing plate, the bottom end of the first connecting rod connecting part is provided with a first tooth part, the top end of the second connecting rod connecting part is provided with a second tooth part, and the first tooth part and the second tooth part are meshed with each other;
the inner support head comprises an inner support supporting part and an inner support fixing part, wherein the inner support fixing part is U-shaped, the top end of the inner support fixing part is connected with the first tooth part through a first pin shaft, the bottom end of the inner support fixing part is connected with the second tooth part through a second pin shaft, the inner support supporting part is fixedly arranged on the outer side of the inner support fixing part, the inner support supporting part is H-shaped, the outer surface of the inner support supporting part is arc-shaped, the inner support supporting part and the inner support fixing part comprise a plurality of inner support supporting parts and inner support fixing parts, the inner support supporting parts and the inner support fixing parts are in one-to-one correspondence, and the adjacent two inner support supporting parts are in clamping arrangement.
As a preferred embodiment, the first upper die comprises a first heating plate, the top of the first heating plate is connected with a first heat insulation plate, and the bottom of the first heating plate is connected with a first heating cover plate;
the first lower die comprises a second heating plate, the bottom of the second heating plate is connected with a second heat insulation plate, and the top of the second heating plate is connected with a second heating cover plate;
the second upper die comprises a third heating plate, the top of the third heating plate is connected with a third heat insulation plate, and the bottom of the third heating plate is connected with a third heating cover plate;
the second lower die comprises a fourth heating plate, a fourth heat insulation plate is arranged at the bottom of the fourth heating plate in a connecting mode, and a fourth heating cover plate is arranged at the top of the fourth heating plate in a connecting mode.
As a preferred embodiment, the bottom of the first heating cover, the top of the second heating cover, the bottom of the third heating cover and the top of the fourth heating cover are all provided with circumferential electric heating plate assemblies;
the circumference electric hot plate subassembly includes first heating connecting plate, second heating connecting plate and heating pipe, and first heating connecting plate and second heating connecting plate all are the L type setting, form inclosed heating tank between first heating connecting plate and the second heating connecting plate, and the heating tank is the ring setting, and the heating pipe sets up in the heating tank.
As a preferred embodiment, the dust covers include a first dust cover, a second dust cover, a third dust cover, and a fourth dust cover;
the first dust cover is sleeved on the outer side of the first upper die, the second dust cover is sleeved on the outer side of the first lower die, and a through first ventilation opening is formed in the side wall of the second dust cover;
the third dust cover is sleeved on the outer side of the second upper die, the fourth dust cover is sleeved on the outer side of the second lower die, and a through second vent is formed in the side wall of the fourth dust cover;
the air exhaust pipeline is provided with a plurality of branches which are respectively communicated with the first ventilation opening and the second ventilation opening;
the waste gas reaction tank is provided with an air inlet pipe, an air valve is arranged on the air inlet pipe, a first recovery pipe and a second recovery pipe are further arranged on the waste gas reaction tank, the first recovery pipe and the central mechanism are communicated, and the second recovery pipe and the die are communicated.
As a preferred embodiment, the oil cylinder comprises a cylinder bottom, a cylinder tube and a piston rod;
the cylinder bottom is fixedly arranged at the top of the cylinder barrel and is provided with a through oil filling hole;
the piston rod sets up in the inside of cylinder, and the top of piston rod is provided with hangs and draws the bolt hole, and the top outside cover of piston rod is equipped with the piston ring, and the outside cover of piston ring is equipped with first guiding band, first O type circle and YX circle, and the middle part outside cover of piston rod is equipped with the guide ring, and the outside cover of guide ring is equipped with wide guiding band, and the bottom outside cover of piston rod is equipped with second guiding band and second O type circle, the bottom of piston rod with fixed connection sets up between the top of first mould.
A vulcanization process of a tire vulcanizing apparatus, comprising the steps of:
step 1, respectively placing a capsule or a blank supporting machine at the tops of a first lower die and a second lower die according to the size of a tire to be vulcanized, and fixedly connecting the capsule or the blank supporting machine with an inner ring;
step 2, correspondingly placing the tire to be vulcanized on the outer side of a capsule or a blank supporting machine;
step 3, starting an oil cylinder to enable a piston rod to move downwards, pushing a first upper die to move downwards, and enabling a second upper die to move downwards simultaneously under the action of a suspender to vulcanize the tire;
step 4, simultaneously electrifying a first upper die heating plate, a first lower die heating plate, a second upper die heating plate, a second lower die heating plate and a heating pipe, and vulcanizing the tire in an electric heating mode;
step 5, sucking the flue gas in the first dust cover, the second dust cover, the third dust cover and the fourth dust cover into the waste gas reaction tank through the first ventilation opening and the second ventilation opening, and opening an air valve, wherein after the air enters the waste gas reaction tank, the gas in the waste gas reaction tank is reacted in a combustion and cracking mode respectively;
and 6, introducing the gas of the waste gas reaction tank into the central mechanism through the first recovery pipe to carry out internal pressure inflation, and introducing the gas into the mold through the second recovery pipe to preheat the embryo.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. according to the invention, the first lower die and the second lower die are arranged in a split mode, so that the practicability of the first lower die and the second lower die is improved, the tire pattern depth is large, after the previous tire vulcanization is finished, the capsule vulcanization inflation pressure is reduced to about 1.3MPa from 2.1MPa, a part of inert gas is pre-stored in the capsule to enable the outer wall of the capsule to be attached to the inner wall of the tire, then the upper half die and the lower half die are separated, the central mechanism is lifted up to drive the capsule to lift up with the tire, the capsule is attached to the tire, the tire is separated from the die by the friction force of the capsule and the tire, the service life of the capsule is shortened, the inflation pressure is small, the capsule and the tire cannot be taken out of the die, and secondary inflation is needed to cause shackles. And now adopt the split type of inner and outer loop, after vulcanizing, the capsule evacuation, upper and lower half mould separation, central mechanism upper ring jack-up drives lower half mould inner ring and tire to deviate from the outer loop of lower half mould.
2. According to the invention, the oil cylinder is improved, firstly, the sealing devices are arranged at the two ends of the piston rod, so that the sealing guidance is improved, and secondly, the bottom of the oil cylinder is drilled and the lifting bolt is installed. The problem that the previous oil cylinder is not lifted and maintained is solved, and finally, when the oil cylinder descends, the oil cylinder diameter phi 300-phi 360 is used for supplying oil to the oil filling hole by the hydraulic station pump, and the oil at the oil return port is completely leaked to the oil tank, so that the same reason is adopted when the oil cylinder ascends. The speed of vulcanization mold clamping is generally required to be 10-20mm/s, V is calculated according to a formula of V=Q/pi R2n, V represents the rising speed, Q represents the oil pump displacement, R represents the radius of an oil cylinder, n represents the number of the oil cylinders, if the required speed is required, the oil pump is increased or the oil cylinder radius is reduced, and because the oil cylinder diameter determines the tonnage of the mold clamping force, only one option is to increase the oil pump, the increase of the oil pump is followed by the increase of the motor power, or else the rising mold clamping speed is dragged. When the hydraulic working principle is changed, the oil in the oil return port is not leaked back to the oil cylinder when the oil is filled in the oil filling hole of the oil cylinder, and the oil is supplemented into the oil filling hole, so that the slow oil return speed is not affected, the supply quantity of the oil inlet is increased, and the rising speed is improved.
3. The invention cancels the traditional steam heating mode and changes the traditional steam heating mode into the electric heating mode, firstly, the first heating plate, the second heating plate, the third heating plate and the fourth heating plate are utilized for heating, and secondly, the electric heating pipes in the circumferential electric heating plate assembly are utilized for heating. The steam heating mode does not need to say, a boiler is needed, noise and waste gas are generated, the environment protection is affected, and the coal burning heat power cannot be fully utilized. However, in the case of the tire to be vulcanized, because the upper and lower parts are sidewalls, the upper and lower parts are relatively thin, and the thick crown part is peripheral, because the thick crown part requires longer vulcanization time, the crown with longer vulcanization time has no heating point, and the crown part with shorter vulcanization time is heated, and the vulcanization time and vulcanization quality are affected although heat conduction is performed. The invention adopts the circumferential electric heating plate assembly to heat, which can completely stop this point.
4. The invention rationally utilizes the waste gas in the vulcanizing process, and in the vulcanizing process, the waste gas can be generated to influence the physical health of people and the environmental protection. The invention adds a sealed dust cover on the periphery of the mould, the dust cover is laminated, after vulcanization, the mould is not opened, the air suction is carried out in advance, the waste gas is sucked away, after the mould is opened, the air suction quantity is increased, the smoke in the upper mould and the lower mould is basically recovered, the sucked waste gas is stored into a reaction tank along an exhaust pipe, a certain air is supplemented, then the methods of burning, catalytic reaction, cracking and the like of organic matters are adopted, the combustible waste gas and oxygen in the organic matters are consumed completely, stable mixed gas is formed, and the burning, the catalytic reaction and the cracking are all common technical means, so that excessive redundant description is not carried out, the reacted gas returns to the side of the vulcanizing machine along a pipeline, a part of the reacted gas is connected with a central mechanism to charge the inner pressure of the embryo, a part of the embryo is preheated, and the part of heat energy is recycled. Preheating of the embryo can shorten the vulcanization time, and can protect the capsule. The method of transporting the gas to the central mechanism and the mold through the first recovery pipe and the second recovery pipe respectively is a connecting method which can be used or deduced by a person skilled in the art according to the existing technical means, and therefore, the description thereof is not repeated here.
5. The invention provides a tire fixing mechanism of a capsule and a blank supporting machine respectively according to the size of a tire, a large tire, such as 5.00-12, is shaped and vulcanized by adopting a capsule, a small tire, such as 3.00-8, is shaped and vulcanized by adopting a blank supporting machine, and the working principle adopted by the blank supporting machine is that when a first upper die moves downwards to be contacted with an upper cover of a chuck, the upper cover of the chuck is pushed to move downwards, a first tooth part and a second tooth part are meshed, the joint of a first connecting rod connecting part and a second connecting rod connecting part protrudes outwards, and the adjacent inner supporting parts are pushed to be relatively far away from each other for shaping the tire.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a schematic cross-sectional view of the present invention;
FIG. 6 is another elevation view of the present invention;
FIG. 7 is another top view of the present invention;
FIG. 8 is a schematic structural view of a preform stretching machine;
FIG. 9 is a front view of the staking machine;
FIG. 10 is a cross-sectional view of the staking machine;
FIG. 11 is a schematic view of the structure of the inner stay support;
FIG. 12 is a schematic diagram of a cylinder structure;
fig. 13 is a schematic sectional structure of the cylinder.
In the figure, a 1-one piece frame; 2-an oil cylinder; 3-a mold; 4-a tire securing mechanism; 5-a dust cover; 6-an electric heating mechanism; 7-an exhaust gas recovery mechanism; 10-sliding rails; 11-a first slide plate; 12-a second skateboard; 20-cylinder bottom; 21-a cylinder; 22-a piston rod; 23-oil filling holes; 24-hanging bolt holes; 25-guiding ring; 26-wide guide belt; 27-a first sealing means; 28-a second sealing means; 29-piston rings; 270-YX circle; 271-a first O-ring; 272-a first guide strip; 280-a second O-ring; 281-a second guide strip; 30-a first upper die; 31-a first lower mold; 32-a second upper die; 33-a second lower mold; 34-boom; 35-a die connecting frame; 310-outer ring; 311-inner ring; 312-a protrusion; 313-groove portions; 40-capsules; 41-embryo supporting machine; 410-chuck upper cover; 411-chuck lower cover; 412-gas column; 413-support links; 414-inner stay; 415-a first link fixing plate; 416-a second link fixing plate; 4130-first link connection; 4131-a second link connection; 4132-a first tooth; 4133-second tooth; 4140-an inner strut support; 4141-inner support fixing portion; 50-a first dust cap; 51-a second dust cap; 52-a third dust cap; 53-fourth dust cap; 60-a first heating plate; 61-a second heating plate; 62-a third heating plate; 63-a fourth heating plate; 65-a first heated connection plate; 66-a second heated connection plate; 67-heating tank; 68-heating the pipe; 70-a first vent; 71-second vent.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the illustrations of fig. 1 to 13, a tire vulcanizing apparatus comprises:
the top of the integral frame 1 is provided with an oil cylinder 2;
the molds are arranged in the integrated frame 1, the molds comprise two identical groups, namely a first group of molds and a second group of molds, and are used for simultaneously completing vulcanization of two tires, the first group of molds are arranged at the top of the second group of molds, the first group of molds comprises a first upper mold 30 and a first lower mold 31, and the second group of molds comprises a second upper mold 32 and a second lower mold 33;
a tire fixing mechanism provided on top of the first and second lower molds 31 and 33, the tire fixing mechanism including a bladder 40 and a preform stretching machine 41;
the dustproof cover is sleeved on the outer side of the die, and a vent is formed in the side wall of the dustproof cover;
the waste gas recovery mechanism comprises a waste gas reaction tank, wherein the waste gas reaction tank is arranged on one side of the integrated frame 1, and an air exhaust pipeline is connected between the waste gas reaction tank and the ventilation opening.
A die connecting frame 35 is connected between the first lower die 31 and the second upper die 32, and the die connecting frame 35 is arranged in a convex shape;
the inner wall of integral type frame 1 is provided with slide rail 10, and slide rail 10 is gone up to slide and is provided with first slide 11 and second slide 12, and fixed connection is gone up between first slide 11 and the first mould 30, and fixed connection is gone up between second slide 12 and the mould link 35, is gone up and is connected through jib 34 between mould 30 and the mould link 35.
The first lower die 31 and the second lower die 33 are provided in a split type;
the first lower mold 31 comprises an inner ring 311 and an outer ring 310, the outer ring 310 is arranged on the outer side of the inner ring 311, the inner ring 311 is fixedly connected with the tire fixing mechanism, a protruding part 312 is arranged on the inner side of the outer ring 310, a groove part 313 is arranged on the outer side of the inner ring 311, and the outer ring 310 and the inner ring 311 are in clamping connection;
the second lower mold 33 includes an inner ring 311 and an outer ring 310, the outer ring 310 is disposed at the outer side of the inner ring 311, the inner ring 311 is fixedly connected with the tire fixing mechanism, a protruding portion 312 is disposed at the inner side of the outer ring 310, a groove portion 313 is disposed at the outer side of the inner ring 311, and the outer ring 310 is in snap connection with the inner ring 311.
The embryo supporting machine 41 comprises a chuck upper cover 410, a chuck lower cover 411, an air column 412, a support connecting rod 413 and an inner supporting head 414, wherein the chuck upper cover 410 is arranged above the chuck lower cover 411, the chuck lower cover 411 and the inner ring 311 are fixedly connected, the air column 412 penetrates through the middle parts of the chuck upper cover 410 and the chuck lower cover 411, the support connecting rod 413 is arranged between the chuck upper cover 410 and the chuck lower cover 411, the top end of the support connecting rod 413 is connected with the bottom surface of the chuck upper cover 410, the bottom end of the support connecting rod 413 is connected with the top surface of the chuck lower cover 411, and the inner supporting head 414 is arranged on the outer side of the support connecting rod 413.
The bottom of the chuck upper cover 410 is fixedly provided with a first connecting rod fixing plate 415, and the outer surface of the side wall of the first connecting rod fixing plate 415 is uniformly provided with a plurality of first connecting rod clamping grooves along the circumference;
a second connecting rod fixing plate 416 is fixedly arranged at the top of the chuck lower cover 411, and a plurality of second connecting rod clamping grooves are uniformly distributed on the outer surface of the side wall of the second connecting rod fixing plate 416 along the circumference;
the support link 413 includes a first link connection portion 4130 and a second link connection portion 4131, wherein a top end of the first link connection portion 4130 is disposed in the first link clamping groove, the first link connection portion 4130 is hinged to the first link fixing plate 415, a bottom end of the second link connection portion 4131 is disposed in the second link clamping groove, the second link connection portion 4131 is hinged to the second link fixing plate 416, a first tooth portion 4132 is disposed at a bottom end of the first link connection portion 4130, a second tooth portion 4133 is disposed at a top end of the second link connection portion 4131, and the first tooth portion 4132 and the second tooth portion 4133 are meshed with each other;
the inner support head 414 includes an inner support portion 4140 and an inner support fixing portion 4141, the inner support fixing portion 4141 is in a U-shaped configuration, the top end of the inner support fixing portion 4141 is connected with the first tooth portion 4132 through a first pin shaft, the bottom end of the inner support fixing portion 4141 is connected with the second tooth portion 4133 through a second pin shaft, the inner support portion 4140 is fixedly disposed on the outer side of the inner support fixing portion 4141, the inner support portion 4140 is in an H-shaped configuration, the outer surface of the inner support portion 4140 is in an arc-shaped configuration, the inner support portion 4140 and the inner support fixing portion 4141 both include a plurality of inner support portions 4140 and inner support fixing portions 4141, the inner support fixing portions 4141 are in one-to-one correspondence, and two adjacent inner support portions 4140 are in a clamping configuration.
The first upper die 30 comprises a first heating plate 60, a first heat insulation plate is connected and arranged at the top of the first heating plate 60, and a first heating cover plate is connected and arranged at the bottom of the first heating plate 60;
the first lower die 31 comprises a second heating plate 61, a second heat insulation plate is connected and arranged at the bottom of the second heating plate 61, and a second heating cover plate is connected and arranged at the top of the second heating plate 61;
the second upper mold 32 comprises a third heating plate 62, a third heat insulation plate is connected and arranged at the top of the third heating plate 62, and a third heating cover plate is connected and arranged at the bottom of the third heating plate 62;
the second lower mold 33 includes a fourth heating plate 63, a fourth heat insulation plate is connected to the bottom of the fourth heating plate 63, and a fourth heating cover plate is connected to the top of the fourth heating plate 63.
The bottom of the first heating cover, the top of the second heating cover, the bottom of the third heating cover and the top of the fourth heating cover are all provided with circumferential electric heating plate assemblies;
the circumference electric hot plate assembly includes first heating connecting plate 65, second heating connecting plate 66 and heating pipe 68, and first heating connecting plate 65 and second heating connecting plate 66 all are the L type setting, form inclosed heating groove 67 between first heating connecting plate 65 and the second heating connecting plate 66, and heating groove 67 is the ring type setting, and heating pipe 68 sets up in heating groove 67.
As a preferred embodiment, the dust covers include a first dust cover 50, a second dust cover 51, a third dust cover 52, and a fourth dust cover 53;
the first dust cover 50 is sleeved outside the first upper die 30, the second dust cover 51 is sleeved outside the first lower die 31, and a first through vent 70 is formed in the side wall of the second dust cover 51;
the third dust cover 52 is sleeved outside the second upper die 32, and a second through vent 71 is arranged on the side wall of the fourth dust cover 53;
the air exhaust pipeline is provided with a plurality of branches which are respectively communicated with the first ventilation opening 70 and the second ventilation opening 71;
the waste gas reaction tank is provided with an air inlet pipe, an air valve is arranged on the air inlet pipe, a first recovery pipe and a second recovery pipe are further arranged on the waste gas reaction tank, the first recovery pipe and the central mechanism are communicated, and the second recovery pipe and the die are communicated.
The oil cylinder 2 comprises a cylinder bottom 20, a cylinder barrel 21 and a piston rod 22;
the cylinder bottom 20 is fixedly arranged at the top of the cylinder 21, and the cylinder bottom 20 is provided with a through oil filling hole 23;
the piston rod 22 sets up in the inside of cylinder 21, the top of piston rod 22 is provided with hangs and draws bolt hole 24, the top outside cover of piston rod 22 is equipped with the piston ring, the outside cover of piston ring is equipped with first guiding strip 272, first O type circle 271 and YX circle 270, the middle part outside cover of piston rod 22 is equipped with guide ring 25, the outside cover of guide ring 25 is equipped with wide guiding strip 26, the bottom outside cover of piston rod 22 is equipped with second guiding strip 281 and second O type circle 280, the bottom of piston rod 22 with fixed connection sets up between the top of first last mould 30.
A vulcanization process of a tire vulcanizing apparatus, comprising the steps of:
step 1, according to the size of a tire to be vulcanized, respectively placing a capsule 40 or a blank supporting machine 41 on the top of a first lower die 31 and the top of a second lower die 33, and fixedly connecting the capsule 40 or the blank supporting machine 41 with an inner ring 311;
step 2, correspondingly placing the tire to be vulcanized on the outer side of the capsule 40 or the embryo supporting machine 41;
step 3, starting the oil cylinder 2 to enable the piston rod 22 to move downwards, pushing the first upper die 30 to move downwards, and enabling the second upper die 32 to move downwards simultaneously under the action of the hanging rod 34, so as to vulcanize the tire;
step 4, simultaneously electrifying the first upper die heating plate, the first lower die heating plate, the second upper die heating plate, the second lower die heating plate and the heating pipe 68, and vulcanizing the tire in an electric heating mode;
step 5, simultaneously sucking the flue gas in the first dust cover 50, the second dust cover 51, the third dust cover 52 and the fourth dust cover 53 into the waste gas reaction tank through the first ventilation opening 70 and the second ventilation opening 71, and opening an air valve, and respectively adopting a combustion and cracking mode to enable the gas in the waste gas reaction tank to react after the air enters the waste gas reaction tank;
and 6, introducing the gas of the waste gas reaction tank into the central mechanism through the first recovery pipe to carry out internal pressure inflation, and introducing the gas into the mold through the second recovery pipe to preheat the embryo.
According to the invention, the first lower die 31 and the second lower die 33 are arranged in a split mode, so that the practicability of the first lower die 31 and the second lower die 33 is improved, the tire pattern depth is large, after the vulcanization of the previous tire is finished, the vulcanization inflation pressure of the capsule 40 is reduced to about 1.3MPa, a part of inert gas is pre-stored in the capsule 40 to enable the outer wall of the capsule 40 to be attached to the inner wall of the tire, then the upper half die is separated from the lower half die, the central mechanism is lifted up to drive the capsule 40 to lift up with the tire, the capsule 40 is attached to the tire, the tire is separated from the die by the friction force of the capsule 40 and the tire, the service life of the capsule 40 is shortened, the inflation pressure is small, the phenomenon that the capsule 40 and the tire cannot be taken out of the die is required to be inflated for the second time, and the steamed corn is caused. And now, the inner and outer rings 310 are split, after vulcanization is finished, the capsule 40 is vacuumized, the upper half die and the lower half die are separated, the upper ring of the central mechanism is lifted, and the lower half die inner ring 311 and the tire are driven to be separated from the lower half die outer ring 310.
The invention improves the oil cylinder 2, firstly, sealing devices are arranged at two ends of a piston rod 22, sealing guidance is improved, and secondly, holes are drilled at the bottom of the oil cylinder 2, and a lifting bolt is installed. The problem that the previous oil cylinder 2 is not lifted and maintained is solved, and finally, when the oil cylinder 2 descends, the oil cylinder diameter phi 300-phi 360 is used for supplying oil to the oil filling hole 23 by the hydraulic station pump, and the oil in the oil return port is completely leaked to the oil tank, so that the same reason is adopted when the oil cylinder 2 ascends. The speed of vulcanization mold clamping is generally required to be 10-20mm/s, V is calculated according to a formula of V=Q/pi R2n, V represents the rising speed, Q represents the oil pump displacement, R represents the radius of the oil cylinder 2, n represents the number of the oil cylinders 2, if the speed is required, the oil pump is increased or the radius of the oil cylinder 2 is reduced, and because the cylinder diameter of the oil cylinder 2 determines the tonnage of mold clamping, only one option is to increase the oil pump, the increase of the oil pump is followed by the increase of the power of a motor, or else the rising mold clamping speed is probably dragged. When the hydraulic working principle is changed, the oil in the oil filling hole 23 of the oil cylinder 2 is not leaked back to the oil cylinder 2, but is supplemented into the oil filling hole 23, so that the slow oil return speed is not affected, the supply quantity of the oil is increased, and the rising speed is improved.
The invention cancels the traditional steam heating, and changes the traditional steam heating into electric heating, and the electric heating mode is firstly heating by using a first heating plate 60, a second heating plate 61, a third heating plate 62 and a fourth heating plate 63, and secondly heating by using electric heating tubes in a circumferential electric heating plate assembly. The steam heating mode does not need to say, a boiler is needed, noise and waste gas are generated, the environment protection is affected, and the coal burning heat power cannot be fully utilized. However, in the case of the tire to be vulcanized, because the upper and lower parts are sidewalls, the upper and lower parts are relatively thin, and the thick crown part is peripheral, because the thick crown part requires longer vulcanization time, the crown with longer vulcanization time has no heating point, and the crown part with shorter vulcanization time is heated, and the vulcanization time and vulcanization quality are affected although heat conduction is performed. The invention adopts the circumferential electric heating plate assembly to heat, which can completely stop this point.
The invention rationally utilizes the waste gas in the vulcanizing process, and in the vulcanizing process, the waste gas can be generated to influence the physical health of people and the environmental protection. The invention adds a sealed dust cover on the periphery of the mould, the dust cover is laminated, after vulcanization, the mould is not opened, the air suction is carried out in advance, the waste gas is sucked away, after the mould is opened, the air suction quantity is increased, the smoke in the upper mould and the lower mould is basically recovered, the sucked waste gas is stored into a reaction tank along an exhaust pipe, a certain air is supplemented, then the methods of burning, catalytic reaction, cracking and the like of organic matters are adopted, the combustible waste gas and oxygen in the organic matters are consumed completely, stable mixed gas is formed, and the burning, the catalytic reaction and the cracking are all common technical means, so that excessive redundant description is not carried out, the reacted gas returns to the side of the vulcanizing machine along a pipeline, a part of the reacted gas is connected with a central mechanism to charge the inner pressure of the embryo, a part of the embryo is preheated, and the part of heat energy is recycled. Preheating the green tyre can shorten the vulcanizing time and protect the capsule 40. The method of transporting the gas to the central mechanism and the mold through the first recovery pipe and the second recovery pipe respectively is a connecting method which can be used or deduced by a person skilled in the art according to the existing technical means, and therefore, the description thereof is not repeated here.
The invention provides a tire fixing mechanism of a capsule 40 and a blank supporting machine 41 according to the size of a tire, a large tire, such as 5.00-12, adopts a capsule 40 type to carry out shaping and vulcanization, a small tire, such as 3.00-8, adopts a blank supporting machine 41 to carry out shaping and vulcanization, and adopts the working principle that when a first upper die 30 moves downwards to be in contact with a chuck upper cover 410, the chuck upper cover 410 is pushed to move downwards, and a first tooth part 4132 and a second tooth part 4133 are meshed, so that the joint of a first connecting rod connecting part 4130 and a second connecting rod connecting part 4131 protrudes outwards, and the adjacent inner supporting part 4140 is pushed to be relatively far away from each other to carry out shaping on the tire.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. A tire curing apparatus, comprising:
an integral frame, the top of which is provided with an oil cylinder;
the first group of dies are arranged at the top of the second group of dies, the first group of dies comprise a first upper die and a first lower die, and the second group of dies comprise a second upper die and a second lower die;
the tire fixing mechanism is arranged at the top of the first lower die and the second lower die and comprises a capsule and a blank supporting machine;
the dustproof cover is sleeved on the outer side of the die, and a vent is formed in the side wall of the dustproof cover;
the waste gas recovery mechanism comprises a waste gas reaction tank, wherein the waste gas reaction tank is arranged on one side of the integrated frame, and an air exhaust pipeline is connected between the waste gas reaction tank and the ventilation opening;
a die connecting frame is connected between the first lower die and the second upper die, and the die connecting frame is arranged in a convex mode;
the inner wall of the integrated frame is provided with a sliding rail, a first sliding plate and a second sliding plate are arranged on the sliding rail in a sliding manner, the first sliding plate is fixedly connected with the first upper die, the second sliding plate is fixedly connected with the die connecting frame, and the first upper die is connected with the die connecting frame through a hanging rod;
the first lower die and the second lower die are arranged in a split type;
the first lower die comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the inner ring, the inner ring is fixedly connected with the tire fixing mechanism, a groove part is arranged on the inner side of the outer ring, a protruding part is arranged on the outer side of the inner ring, and the outer ring is connected with the inner ring in a clamping way;
the second lower die comprises an inner ring and an outer ring, the outer ring is arranged on the outer side of the inner ring, the inner ring is fixedly connected with the tire fixing mechanism, a groove part is arranged on the inner side of the outer ring, a protruding part is arranged on the outer side of the inner ring, and the outer ring is connected with the inner ring in a clamping way;
the embryo supporting machine comprises a chuck upper cover, a chuck lower cover, an air column, a supporting connecting rod and an inner supporting head, wherein the chuck upper cover is arranged above the chuck lower cover, the chuck lower cover is fixedly connected with the inner ring, the air column penetrates through the middle parts of the chuck upper cover and the chuck lower cover, the supporting connecting rod is arranged between the chuck upper cover and the chuck lower cover, the top end of the supporting connecting rod is connected with the bottom surface of the chuck upper cover, the bottom end of the supporting connecting rod is connected with the top surface of the chuck lower cover, and the inner supporting head is arranged on the outer side of the supporting connecting rod;
the bottom of the chuck upper cover is fixedly provided with a first connecting rod fixing plate, and the outer surface of the side wall of the first connecting rod fixing plate is uniformly provided with a plurality of first connecting rod clamping grooves along the circumference;
the top of the chuck lower cover is fixedly provided with a second connecting rod fixing plate, and the outer surface of the side wall of the second connecting rod fixing plate is uniformly provided with a plurality of second connecting rod clamping grooves along the circumference;
the support connecting rod comprises a first connecting rod connecting part and a second connecting rod connecting part, the top end of the first connecting rod connecting part is arranged in a first connecting rod clamping groove, the first connecting rod connecting part is hinged with the first connecting rod fixing plate, the bottom end of the second connecting rod connecting part is arranged in a second connecting rod clamping groove, the second connecting rod connecting part is hinged with the second connecting rod fixing plate, the bottom end of the first connecting rod connecting part is provided with a first tooth part, the top end of the second connecting rod connecting part is provided with a second tooth part, and the first tooth part and the second tooth part are meshed with each other;
the inner support head comprises an inner support supporting part and an inner support fixing part, wherein the inner support fixing part is U-shaped, the top end of the inner support fixing part is connected with the first tooth part through a first pin shaft, the bottom end of the inner support fixing part is connected with the second tooth part through a second pin shaft, the inner support supporting part is fixedly arranged on the outer side of the inner support fixing part, the inner support supporting part is H-shaped, the outer surface of the inner support supporting part is arc-shaped, the inner support supporting part and the inner support fixing part comprise a plurality of inner support supporting parts and inner support fixing parts, the inner support supporting parts and the inner support fixing parts are in one-to-one correspondence, and the adjacent two inner support supporting parts are in clamping arrangement.
2. The tire curing apparatus of claim 1, wherein the first upper mold comprises a first heating plate, a first heat shield is connected to the top of the first heating plate, and a first heating cover plate is connected to the bottom of the first heating plate;
the first lower die comprises a second heating plate, the bottom of the second heating plate is connected with a second heat insulation plate, and the top of the second heating plate is connected with a second heating cover plate;
the second upper die comprises a third heating plate, the top of the third heating plate is connected with a third heat insulation plate, and the bottom of the third heating plate is connected with a third heating cover plate;
the second lower die comprises a fourth heating plate, a fourth heat insulation plate is arranged at the bottom of the fourth heating plate in a connecting mode, and a fourth heating cover plate is arranged at the top of the fourth heating plate in a connecting mode.
3. A tyre vulcanisation apparatus according to claim 2, wherein the bottom of the first heating cover, the top of the second heating cover, the bottom of the third heating cover and the top of the fourth heating cover are each provided with a circumferential electric heating plate assembly;
the circumference electric hot plate subassembly includes first heating connecting plate, second heating connecting plate and heating pipe, and first heating connecting plate and second heating connecting plate all are the L type setting, form inclosed heating tank between first heating connecting plate and the second heating connecting plate, and the heating tank is the ring setting, and the heating pipe sets up in the heating tank.
4. A tire curing apparatus as in claim 1, wherein said dust caps include a first dust cap, a second dust cap, a third dust cap, and a fourth dust cap;
the first dust cover is sleeved on the outer side of the first upper die, the second dust cover is sleeved on the outer side of the first lower die, and a through first ventilation opening is formed in the side wall of the second dust cover;
the third dust cover is sleeved on the outer side of the second upper die, the fourth dust cover is sleeved on the outer side of the second lower die, and a through second vent is formed in the side wall of the fourth dust cover;
the air exhaust pipeline is provided with a plurality of branches which are respectively communicated with the first ventilation opening and the second ventilation opening;
the waste gas reaction tank is provided with an air inlet pipe, an air valve is arranged on the air inlet pipe, a first recovery pipe and a second recovery pipe are further arranged on the waste gas reaction tank, the first recovery pipe and the central mechanism are communicated, and the second recovery pipe and the die are communicated.
5. A tyre vulcanisation apparatus according to claim 1, wherein said cylinder comprises a cylinder bottom, a cylinder tube and a piston rod;
the cylinder bottom is fixedly arranged at the top of the cylinder barrel and is provided with a through oil filling hole;
the piston rod sets up in the inside of cylinder, and the top of piston rod is provided with hangs and draws the bolt hole, and the top outside cover of piston rod is equipped with the piston ring, and the outside cover of piston ring is equipped with first guiding band, first O type circle and YX circle, and the middle part outside cover of piston rod is equipped with the guide ring, and the outside cover of guide ring is equipped with wide guiding band, and the bottom outside cover of piston rod is equipped with second guiding band and second O type circle, the bottom of piston rod with fixed connection sets up between the top of first mould.
6. A vulcanization process using the tire vulcanizing apparatus of claim 1, comprising the steps of:
step 1, respectively placing a capsule or a blank supporting machine at the tops of a first lower die and a second lower die according to the size of a tire to be vulcanized, and fixedly connecting the capsule or the blank supporting machine with an inner ring;
step 2, correspondingly placing the tire to be vulcanized on the outer side of a capsule or a blank supporting machine;
step 3, starting an oil cylinder to enable a piston rod to move downwards, pushing a first upper die to move downwards, and enabling a second upper die to move downwards simultaneously under the action of a suspender to vulcanize the tire;
step 4, simultaneously electrifying a first upper die heating plate, a first lower die heating plate, a second upper die heating plate, a second lower die heating plate and a heating pipe, and vulcanizing the tire in an electric heating mode;
step 5, sucking the flue gas in the first dust cover, the second dust cover, the third dust cover and the fourth dust cover into the waste gas reaction tank through the first ventilation opening and the second ventilation opening, and opening an air valve, wherein after the air enters the waste gas reaction tank, the gas in the waste gas reaction tank is reacted in a combustion and cracking mode respectively;
and 6, introducing the gas of the waste gas reaction tank into the central mechanism through the first recovery pipe to carry out internal pressure inflation, and introducing the gas into the mold through the second recovery pipe to preheat the embryo.
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| CN202210242016.8A CN114603754B (en) | 2022-03-11 | 2022-03-11 | Tire vulcanizing device and vulcanizing process thereof |
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| CN116653331B (en) * | 2023-07-31 | 2023-09-29 | 山东力创模具股份有限公司 | Tire vulcanizer and use method thereof |
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